diff --git a/assets/js/dash.mediaplayer.debug.js b/assets/js/dash.mediaplayer.debug.js deleted file mode 100644 index 14a2f7ef..00000000 --- a/assets/js/dash.mediaplayer.debug.js +++ /dev/null @@ -1,48919 +0,0 @@ -(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o> 6); - u.push(0x80 | 63 & c); - } else if (c < 0x10000) { - u.push(0xE0 | c >> 12); - u.push(0x80 | 63 & c >> 6); - u.push(0x80 | 63 & c); - } else { - u.push(0xF0 | c >> 18); - u.push(0x80 | 63 & c >> 12); - u.push(0x80 | 63 & c >> 6); - u.push(0x80 | 63 & c); - } - } - return u; -}; -UTF8.decode = function (u) { - var a = []; - var i = 0; - while (i < u.length) { - var v = u[i++]; - if (v < 0x80) { - // no need to mask byte - } else if (v < 0xE0) { - v = (31 & v) << 6; - v |= 63 & u[i++]; - } else if (v < 0xF0) { - v = (15 & v) << 12; - v |= (63 & u[i++]) << 6; - v |= 63 & u[i++]; - } else { - v = (7 & v) << 18; - v |= (63 & u[i++]) << 12; - v |= (63 & u[i++]) << 6; - v |= 63 & u[i++]; - } - a.push(String.fromCharCode(v)); - } - return a.join(''); -}; - -var BASE64 = {}; -(function (T) { - var encodeArray = function encodeArray(u) { - var i = 0; - var a = []; - var n = 0 | u.length / 3; - while (0 < n--) { - var v = (u[i] << 16) + (u[i + 1] << 8) + u[i + 2]; - i += 3; - a.push(T.charAt(63 & v >> 18)); - a.push(T.charAt(63 & v >> 12)); - a.push(T.charAt(63 & v >> 6)); - a.push(T.charAt(63 & v)); - } - if (2 == u.length - i) { - var v = (u[i] << 16) + (u[i + 1] << 8); - a.push(T.charAt(63 & v >> 18)); - a.push(T.charAt(63 & v >> 12)); - a.push(T.charAt(63 & v >> 6)); - a.push('='); - } else if (1 == u.length - i) { - var v = u[i] << 16; - a.push(T.charAt(63 & v >> 18)); - a.push(T.charAt(63 & v >> 12)); - a.push('=='); - } - return a.join(''); - }; - var R = (function () { - var a = []; - for (var i = 0; i < T.length; ++i) { - a[T.charCodeAt(i)] = i; - } - a['='.charCodeAt(0)] = 0; - return a; - })(); - var decodeArray = function decodeArray(s) { - var i = 0; - var u = []; - var n = 0 | s.length / 4; - while (0 < n--) { - var v = (R[s.charCodeAt(i)] << 18) + (R[s.charCodeAt(i + 1)] << 12) + (R[s.charCodeAt(i + 2)] << 6) + R[s.charCodeAt(i + 3)]; - u.push(255 & v >> 16); - u.push(255 & v >> 8); - u.push(255 & v); - i += 4; - } - if (u) { - if ('=' == s.charAt(i - 2)) { - u.pop(); - u.pop(); - } else if ('=' == s.charAt(i - 1)) { - u.pop(); - } - } - return u; - }; - var ASCII = {}; - ASCII.encode = function (s) { - var u = []; - for (var i = 0; i < s.length; ++i) { - u.push(s.charCodeAt(i)); - } - return u; - }; - ASCII.decode = function (u) { - for (var i = 0; i < s.length; ++i) { - a[i] = String.fromCharCode(a[i]); - } - return a.join(''); - }; - BASE64.decodeArray = function (s) { - var u = decodeArray(s); - return new Uint8Array(u); - }; - BASE64.encodeASCII = function (s) { - var u = ASCII.encode(s); - return encodeArray(u); - }; - BASE64.decodeASCII = function (s) { - var a = decodeArray(s); - return ASCII.decode(a); - }; - BASE64.encode = function (s) { - var u = UTF8.encode(s); - return encodeArray(u); - }; - BASE64.decode = function (s) { - var u = decodeArray(s); - return UTF8.decode(u); - }; -})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"); - -/*The following polyfills are not used in dash.js but have caused multiplayer integration issues. - Therefore commenting them out. -if (undefined === btoa) { - var btoa = BASE64.encode; -} -if (undefined === atob) { - var atob = BASE64.decode; -} -*/ - -if (typeof exports !== 'undefined') { - exports.decode = BASE64.decode; - exports.decodeArray = BASE64.decodeArray; - exports.encode = BASE64.encode; - exports.encodeASCII = BASE64.encodeASCII; -} - -},{}],2:[function(_dereq_,module,exports){ -/** - * The copyright in this software is being made available under the BSD License, - * included below. This software may be subject to other third party and contributor - * rights, including patent rights, and no such rights are granted under this license. - * - * Copyright (c) 2015-2016, DASH Industry Forum. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation and/or - * other materials provided with the distribution. - * 2. Neither the name of Dash Industry Forum nor the names of its - * contributors may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -'use strict'; - -(function (exports) { - - "use strict"; - - /** - * Exceptions from regular ASCII. CodePoints are mapped to UTF-16 codes - */ - - var specialCea608CharsCodes = { - 0x2a: 0xe1, // lowercase a, acute accent - 0x5c: 0xe9, // lowercase e, acute accent - 0x5e: 0xed, // lowercase i, acute accent - 0x5f: 0xf3, // lowercase o, acute accent - 0x60: 0xfa, // lowercase u, acute accent - 0x7b: 0xe7, // lowercase c with cedilla - 0x7c: 0xf7, // division symbol - 0x7d: 0xd1, // uppercase N tilde - 0x7e: 0xf1, // lowercase n tilde - 0x7f: 0x2588, // Full block - // THIS BLOCK INCLUDES THE 16 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS - // THAT COME FROM HI BYTE=0x11 AND LOW BETWEEN 0x30 AND 0x3F - // THIS MEANS THAT \x50 MUST BE ADDED TO THE VALUES - 0x80: 0xae, // Registered symbol (R) - 0x81: 0xb0, // degree sign - 0x82: 0xbd, // 1/2 symbol - 0x83: 0xbf, // Inverted (open) question mark - 0x84: 0x2122, // Trademark symbol (TM) - 0x85: 0xa2, // Cents symbol - 0x86: 0xa3, // Pounds sterling - 0x87: 0x266a, // Music 8'th note - 0x88: 0xe0, // lowercase a, grave accent - 0x89: 0x20, // transparent space (regular) - 0x8a: 0xe8, // lowercase e, grave accent - 0x8b: 0xe2, // lowercase a, circumflex accent - 0x8c: 0xea, // lowercase e, circumflex accent - 0x8d: 0xee, // lowercase i, circumflex accent - 0x8e: 0xf4, // lowercase o, circumflex accent - 0x8f: 0xfb, // lowercase u, circumflex accent - // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS - // THAT COME FROM HI BYTE=0x12 AND LOW BETWEEN 0x20 AND 0x3F - 0x90: 0xc1, // capital letter A with acute - 0x91: 0xc9, // capital letter E with acute - 0x92: 0xd3, // capital letter O with acute - 0x93: 0xda, // capital letter U with acute - 0x94: 0xdc, // capital letter U with diaresis - 0x95: 0xfc, // lowercase letter U with diaeresis - 0x96: 0x2018, // opening single quote - 0x97: 0xa1, // inverted exclamation mark - 0x98: 0x2a, // asterisk - 0x99: 0x2019, // closing single quote - 0x9a: 0x2501, // box drawings heavy horizontal - 0x9b: 0xa9, // copyright sign - 0x9c: 0x2120, // Service mark - 0x9d: 0x2022, // (round) bullet - 0x9e: 0x201c, // Left double quotation mark - 0x9f: 0x201d, // Right double quotation mark - 0xa0: 0xc0, // uppercase A, grave accent - 0xa1: 0xc2, // uppercase A, circumflex - 0xa2: 0xc7, // uppercase C with cedilla - 0xa3: 0xc8, // uppercase E, grave accent - 0xa4: 0xca, // uppercase E, circumflex - 0xa5: 0xcb, // capital letter E with diaresis - 0xa6: 0xeb, // lowercase letter e with diaresis - 0xa7: 0xce, // uppercase I, circumflex - 0xa8: 0xcf, // uppercase I, with diaresis - 0xa9: 0xef, // lowercase i, with diaresis - 0xaa: 0xd4, // uppercase O, circumflex - 0xab: 0xd9, // uppercase U, grave accent - 0xac: 0xf9, // lowercase u, grave accent - 0xad: 0xdb, // uppercase U, circumflex - 0xae: 0xab, // left-pointing double angle quotation mark - 0xaf: 0xbb, // right-pointing double angle quotation mark - // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS - // THAT COME FROM HI BYTE=0x13 AND LOW BETWEEN 0x20 AND 0x3F - 0xb0: 0xc3, // Uppercase A, tilde - 0xb1: 0xe3, // Lowercase a, tilde - 0xb2: 0xcd, // Uppercase I, acute accent - 0xb3: 0xcc, // Uppercase I, grave accent - 0xb4: 0xec, // Lowercase i, grave accent - 0xb5: 0xd2, // Uppercase O, grave accent - 0xb6: 0xf2, // Lowercase o, grave accent - 0xb7: 0xd5, // Uppercase O, tilde - 0xb8: 0xf5, // Lowercase o, tilde - 0xb9: 0x7b, // Open curly brace - 0xba: 0x7d, // Closing curly brace - 0xbb: 0x5c, // Backslash - 0xbc: 0x5e, // Caret - 0xbd: 0x5f, // Underscore - 0xbe: 0x7c, // Pipe (vertical line) - 0xbf: 0x223c, // Tilde operator - 0xc0: 0xc4, // Uppercase A, umlaut - 0xc1: 0xe4, // Lowercase A, umlaut - 0xc2: 0xd6, // Uppercase O, umlaut - 0xc3: 0xf6, // Lowercase o, umlaut - 0xc4: 0xdf, // Esszett (sharp S) - 0xc5: 0xa5, // Yen symbol - 0xc6: 0xa4, // Generic currency sign - 0xc7: 0x2503, // Box drawings heavy vertical - 0xc8: 0xc5, // Uppercase A, ring - 0xc9: 0xe5, // Lowercase A, ring - 0xca: 0xd8, // Uppercase O, stroke - 0xcb: 0xf8, // Lowercase o, strok - 0xcc: 0x250f, // Box drawings heavy down and right - 0xcd: 0x2513, // Box drawings heavy down and left - 0xce: 0x2517, // Box drawings heavy up and right - 0xcf: 0x251b // Box drawings heavy up and left - }; - - /** - * Get Unicode Character from CEA-608 byte code - */ - var getCharForByte = function getCharForByte(byte) { - var charCode = byte; - if (specialCea608CharsCodes.hasOwnProperty(byte)) { - charCode = specialCea608CharsCodes[byte]; - } - return String.fromCharCode(charCode); - }; - - var NR_ROWS = 15, - NR_COLS = 32; - // Tables to look up row from PAC data - var rowsLowCh1 = { 0x11: 1, 0x12: 3, 0x15: 5, 0x16: 7, 0x17: 9, 0x10: 11, 0x13: 12, 0x14: 14 }; - var rowsHighCh1 = { 0x11: 2, 0x12: 4, 0x15: 6, 0x16: 8, 0x17: 10, 0x13: 13, 0x14: 15 }; - var rowsLowCh2 = { 0x19: 1, 0x1A: 3, 0x1D: 5, 0x1E: 7, 0x1F: 9, 0x18: 11, 0x1B: 12, 0x1C: 14 }; - var rowsHighCh2 = { 0x19: 2, 0x1A: 4, 0x1D: 6, 0x1E: 8, 0x1F: 10, 0x1B: 13, 0x1C: 15 }; - - var backgroundColors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'black', 'transparent']; - - /** - * Simple logger class to be able to write with time-stamps and filter on level. - */ - var logger = { - verboseFilter: { 'DATA': 3, 'DEBUG': 3, 'INFO': 2, 'WARNING': 2, 'TEXT': 1, 'ERROR': 0 }, - time: null, - verboseLevel: 0, // Only write errors - setTime: function setTime(newTime) { - this.time = newTime; - }, - log: function log(severity, msg) { - var minLevel = this.verboseFilter[severity]; - if (this.verboseLevel >= minLevel) { - console.log(this.time + " [" + severity + "] " + msg); - } - } - }; - - var numArrayToHexArray = function numArrayToHexArray(numArray) { - var hexArray = []; - for (var j = 0; j < numArray.length; j++) { - hexArray.push(numArray[j].toString(16)); - } - return hexArray; - }; - - /** - * State of CEA-608 pen or character - * @constructor - */ - var PenState = function PenState(foreground, underline, italics, background, flash) { - this.foreground = foreground || "white"; - this.underline = underline || false; - this.italics = italics || false; - this.background = background || "black"; - this.flash = flash || false; - }; - - PenState.prototype = { - - reset: function reset() { - this.foreground = "white"; - this.underline = false; - this.italics = false; - this.background = "black"; - this.flash = false; - }, - - setStyles: function setStyles(styles) { - var attribs = ["foreground", "underline", "italics", "background", "flash"]; - for (var i = 0; i < attribs.length; i++) { - var style = attribs[i]; - if (styles.hasOwnProperty(style)) { - this[style] = styles[style]; - } - } - }, - - isDefault: function isDefault() { - return this.foreground === "white" && !this.underline && !this.italics && this.background === "black" && !this.flash; - }, - - equals: function equals(other) { - return this.foreground === other.foreground && this.underline === other.underline && this.italics === other.italics && this.background === other.background && this.flash === other.flash; - }, - - copy: function copy(newPenState) { - this.foreground = newPenState.foreground; - this.underline = newPenState.underline; - this.italics = newPenState.italics; - this.background = newPenState.background; - this.flash = newPenState.flash; - }, - - toString: function toString() { - return "color=" + this.foreground + ", underline=" + this.underline + ", italics=" + this.italics + ", background=" + this.background + ", flash=" + this.flash; - } - }; - - /** - * Unicode character with styling and background. - * @constructor - */ - var StyledUnicodeChar = function StyledUnicodeChar(uchar, foreground, underline, italics, background, flash) { - this.uchar = uchar || ' '; // unicode character - this.penState = new PenState(foreground, underline, italics, background, flash); - }; - - StyledUnicodeChar.prototype = { - - reset: function reset() { - this.uchar = ' '; - this.penState.reset(); - }, - - setChar: function setChar(uchar, newPenState) { - this.uchar = uchar; - this.penState.copy(newPenState); - }, - - setPenState: function setPenState(newPenState) { - this.penState.copy(newPenState); - }, - - equals: function equals(other) { - return this.uchar === other.uchar && this.penState.equals(other.penState); - }, - - copy: function copy(newChar) { - this.uchar = newChar.uchar; - this.penState.copy(newChar.penState); - }, - - isEmpty: function isEmpty() { - return this.uchar === ' ' && this.penState.isDefault(); - } - }; - - /** - * CEA-608 row consisting of NR_COLS instances of StyledUnicodeChar. - * @constructor - */ - var Row = function Row() { - this.chars = []; - for (var i = 0; i < NR_COLS; i++) { - this.chars.push(new StyledUnicodeChar()); - } - this.pos = 0; - this.currPenState = new PenState(); - }; - - Row.prototype = { - - equals: function equals(other) { - var equal = true; - for (var i = 0; i < NR_COLS; i++) { - if (!this.chars[i].equals(other.chars[i])) { - equal = false; - break; - } - } - return equal; - }, - - copy: function copy(other) { - for (var i = 0; i < NR_COLS; i++) { - this.chars[i].copy(other.chars[i]); - } - }, - - isEmpty: function isEmpty() { - var empty = true; - for (var i = 0; i < NR_COLS; i++) { - if (!this.chars[i].isEmpty()) { - empty = false; - break; - } - } - return empty; - }, - - /** - * Set the cursor to a valid column. - */ - setCursor: function setCursor(absPos) { - if (this.pos !== absPos) { - this.pos = absPos; - } - if (this.pos < 0) { - logger.log("ERROR", "Negative cursor position " + this.pos); - this.pos = 0; - } else if (this.pos > NR_COLS) { - logger.log("ERROR", "Too large cursor position " + this.pos); - this.pos = NR_COLS; - } - }, - - /** - * Move the cursor relative to current position. - */ - moveCursor: function moveCursor(relPos) { - var newPos = this.pos + relPos; - if (relPos > 1) { - for (var i = this.pos + 1; i < newPos + 1; i++) { - this.chars[i].setPenState(this.currPenState); - } - } - this.setCursor(newPos); - }, - - /** - * Backspace, move one step back and clear character. - */ - backSpace: function backSpace() { - this.moveCursor(-1); - this.chars[this.pos].setChar(' ', this.currPenState); - }, - - insertChar: function insertChar(byte) { - if (byte >= 0x90) { - //Extended char - this.backSpace(); - } - var char = getCharForByte(byte); - if (this.pos >= NR_COLS) { - logger.log("ERROR", "Cannot insert " + byte.toString(16) + " (" + char + ") at position " + this.pos + ". Skipping it!"); - return; - } - this.chars[this.pos].setChar(char, this.currPenState); - this.moveCursor(1); - }, - - clearFromPos: function clearFromPos(startPos) { - var i; - for (i = startPos; i < NR_COLS; i++) { - this.chars[i].reset(); - } - }, - - clear: function clear() { - this.clearFromPos(0); - this.pos = 0; - this.currPenState.reset(); - }, - - clearToEndOfRow: function clearToEndOfRow() { - this.clearFromPos(this.pos); - }, - - getTextString: function getTextString() { - var chars = []; - var empty = true; - for (var i = 0; i < NR_COLS; i++) { - var char = this.chars[i].uchar; - if (char !== " ") { - empty = false; - } - chars.push(char); - } - if (empty) { - return ""; - } else { - return chars.join(""); - } - }, - - setPenStyles: function setPenStyles(styles) { - this.currPenState.setStyles(styles); - var currChar = this.chars[this.pos]; - currChar.setPenState(this.currPenState); - } - }; - - /** - * Keep a CEA-608 screen of 32x15 styled characters - * @constructor - */ - var CaptionScreen = function CaptionScreen() { - - this.rows = []; - for (var i = 0; i < NR_ROWS; i++) { - this.rows.push(new Row()); // Note that we use zero-based numbering (0-14) - } - this.currRow = NR_ROWS - 1; - this.nrRollUpRows = null; - this.reset(); - }; - - CaptionScreen.prototype = { - - reset: function reset() { - for (var i = 0; i < NR_ROWS; i++) { - this.rows[i].clear(); - } - this.currRow = NR_ROWS - 1; - }, - - equals: function equals(other) { - var equal = true; - for (var i = 0; i < NR_ROWS; i++) { - if (!this.rows[i].equals(other.rows[i])) { - equal = false; - break; - } - } - return equal; - }, - - copy: function copy(other) { - for (var i = 0; i < NR_ROWS; i++) { - this.rows[i].copy(other.rows[i]); - } - }, - - isEmpty: function isEmpty() { - var empty = true; - for (var i = 0; i < NR_ROWS; i++) { - if (!this.rows[i].isEmpty()) { - empty = false; - break; - } - } - return empty; - }, - - backSpace: function backSpace() { - var row = this.rows[this.currRow]; - row.backSpace(); - }, - - clearToEndOfRow: function clearToEndOfRow() { - var row = this.rows[this.currRow]; - row.clearToEndOfRow(); - }, - - /** - * Insert a character (without styling) in the current row. - */ - insertChar: function insertChar(char) { - var row = this.rows[this.currRow]; - row.insertChar(char); - }, - - setPen: function setPen(styles) { - var row = this.rows[this.currRow]; - row.setPenStyles(styles); - }, - - moveCursor: function moveCursor(relPos) { - var row = this.rows[this.currRow]; - row.moveCursor(relPos); - }, - - setCursor: function setCursor(absPos) { - logger.log("INFO", "setCursor: " + absPos); - var row = this.rows[this.currRow]; - row.setCursor(absPos); - }, - - setPAC: function setPAC(pacData) { - logger.log("INFO", "pacData = " + JSON.stringify(pacData)); - var newRow = pacData.row - 1; - if (this.nrRollUpRows && newRow < this.nrRollUpRows - 1) { - newRow = this.nrRollUpRows - 1; - } - this.currRow = newRow; - var row = this.rows[this.currRow]; - if (pacData.indent !== null) { - var indent = pacData.indent; - var prevPos = Math.max(indent - 1, 0); - row.setCursor(pacData.indent); - pacData.color = row.chars[prevPos].penState.foreground; - } - var styles = { foreground: pacData.color, underline: pacData.underline, italics: pacData.italics, background: 'black', flash: false }; - this.setPen(styles); - }, - - /** - * Set background/extra foreground, but first do back_space, and then insert space (backwards compatibility). - */ - setBkgData: function setBkgData(bkgData) { - - logger.log("INFO", "bkgData = " + JSON.stringify(bkgData)); - this.backSpace(); - this.setPen(bkgData); - this.insertChar(0x20); //Space - }, - - setRollUpRows: function setRollUpRows(nrRows) { - this.nrRollUpRows = nrRows; - }, - - rollUp: function rollUp() { - if (this.nrRollUpRows === null) { - logger.log("DEBUG", "roll_up but nrRollUpRows not set yet"); - return; //Not properly setup - } - logger.log("TEXT", this.getDisplayText()); - var topRowIndex = this.currRow + 1 - this.nrRollUpRows; - var topRow = this.rows.splice(topRowIndex, 1)[0]; - topRow.clear(); - this.rows.splice(this.currRow, 0, topRow); - logger.log("INFO", "Rolling up"); - //logger.log("TEXT", this.get_display_text()) - }, - - /** - * Get all non-empty rows with as unicode text. - */ - getDisplayText: function getDisplayText(asOneRow) { - asOneRow = asOneRow || false; - var displayText = []; - var text = ""; - var rowNr = -1; - for (var i = 0; i < NR_ROWS; i++) { - var rowText = this.rows[i].getTextString(); - if (rowText) { - rowNr = i + 1; - if (asOneRow) { - displayText.push("Row " + rowNr + ': "' + rowText + '"'); - } else { - displayText.push(rowText.trim()); - } - } - } - if (displayText.length > 0) { - if (asOneRow) { - text = "[" + displayText.join(" | ") + "]"; - } else { - text = displayText.join("\n"); - } - } - return text; - }, - - getTextAndFormat: function getTextAndFormat() { - return this.rows; - } - }; - - /** - * Handle a CEA-608 channel and send decoded data to outputFilter - * @constructor - * @param {Number} channelNumber (1 or 2) - * @param {CueHandler} outputFilter Output from channel1 newCue(startTime, endTime, captionScreen) - */ - var Cea608Channel = function Cea608Channel(channelNumber, outputFilter) { - - this.chNr = channelNumber; - this.outputFilter = outputFilter; - this.mode = null; - this.verbose = 0; - this.displayedMemory = new CaptionScreen(); - this.nonDisplayedMemory = new CaptionScreen(); - this.lastOutputScreen = new CaptionScreen(); - this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1]; - this.writeScreen = this.displayedMemory; - this.mode = null; - this.cueStartTime = null; // Keeps track of where a cue started. - }; - - Cea608Channel.prototype = { - - modes: ["MODE_ROLL-UP", "MODE_POP-ON", "MODE_PAINT-ON", "MODE_TEXT"], - - reset: function reset() { - this.mode = null; - this.displayedMemory.reset(); - this.nonDisplayedMemory.reset(); - this.lastOutputScreen.reset(); - this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1]; - this.writeScreen = this.displayedMemory; - this.mode = null; - this.cueStartTime = null; - this.lastCueEndTime = null; - }, - - getHandler: function getHandler() { - return this.outputFilter; - }, - - setHandler: function setHandler(newHandler) { - this.outputFilter = newHandler; - }, - - setPAC: function setPAC(pacData) { - this.writeScreen.setPAC(pacData); - }, - - setBkgData: function setBkgData(bkgData) { - this.writeScreen.setBkgData(bkgData); - }, - - setMode: function setMode(newMode) { - if (newMode === this.mode) { - return; - } - this.mode = newMode; - logger.log("INFO", "MODE=" + newMode); - if (this.mode == "MODE_POP-ON") { - this.writeScreen = this.nonDisplayedMemory; - } else { - this.writeScreen = this.displayedMemory; - this.writeScreen.reset(); - } - if (this.mode !== "MODE_ROLL-UP") { - this.displayedMemory.nrRollUpRows = null; - this.nonDisplayedMemory.nrRollUpRows = null; - } - this.mode = newMode; - }, - - insertChars: function insertChars(chars) { - for (var i = 0; i < chars.length; i++) { - this.writeScreen.insertChar(chars[i]); - } - var screen = this.writeScreen === this.displayedMemory ? "DISP" : "NON_DISP"; - logger.log("INFO", screen + ": " + this.writeScreen.getDisplayText(true)); - if (this.mode === "MODE_PAINT-ON" || this.mode === "MODE_ROLL-UP") { - logger.log("TEXT", "DISPLAYED: " + this.displayedMemory.getDisplayText(true)); - this.outputDataUpdate(); - } - }, - - cc_RCL: function cc_RCL() { - // Resume Caption Loading (switch mode to Pop On) - logger.log("INFO", "RCL - Resume Caption Loading"); - this.setMode("MODE_POP-ON"); - }, - cc_BS: function cc_BS() { - // BackSpace - logger.log("INFO", "BS - BackSpace"); - if (this.mode === "MODE_TEXT") { - return; - } - this.writeScreen.backSpace(); - if (this.writeScreen === this.displayedMemory) { - this.outputDataUpdate(); - } - }, - cc_AOF: function cc_AOF() { - // Reserved (formerly Alarm Off) - return; - }, - cc_AON: function cc_AON() { - // Reserved (formerly Alarm On) - return; - }, - cc_DER: function cc_DER() { - // Delete to End of Row - logger.log("INFO", "DER- Delete to End of Row"); - this.writeScreen.clearToEndOfRow(); - this.outputDataUpdate(); - }, - cc_RU: function cc_RU(nrRows) { - //Roll-Up Captions-2,3,or 4 Rows - logger.log("INFO", "RU(" + nrRows + ") - Roll Up"); - this.writeScreen = this.displayedMemory; - this.setMode("MODE_ROLL-UP"); - this.writeScreen.setRollUpRows(nrRows); - }, - cc_FON: function cc_FON() { - //Flash On - logger.log("INFO", "FON - Flash On"); - this.writeScreen.setPen({ flash: true }); - }, - cc_RDC: function cc_RDC() { - // Resume Direct Captioning (switch mode to PaintOn) - logger.log("INFO", "RDC - Resume Direct Captioning"); - this.setMode("MODE_PAINT-ON"); - }, - cc_TR: function cc_TR() { - // Text Restart in text mode (not supported, however) - logger.log("INFO", "TR"); - this.setMode("MODE_TEXT"); - }, - cc_RTD: function cc_RTD() { - // Resume Text Display in Text mode (not supported, however) - logger.log("INFO", "RTD"); - this.setMode("MODE_TEXT"); - }, - cc_EDM: function cc_EDM() { - // Erase Displayed Memory - logger.log("INFO", "EDM - Erase Displayed Memory"); - this.displayedMemory.reset(); - this.outputDataUpdate(); - }, - cc_CR: function cc_CR() { - // Carriage Return - logger.log("CR - Carriage Return"); - this.writeScreen.rollUp(); - this.outputDataUpdate(); - }, - cc_ENM: function cc_ENM() { - //Erase Non-Displayed Memory - logger.log("INFO", "ENM - Erase Non-displayed Memory"); - this.nonDisplayedMemory.reset(); - }, - cc_EOC: function cc_EOC() { - //End of Caption (Flip Memories) - logger.log("INFO", "EOC - End Of Caption"); - if (this.mode === "MODE_POP-ON") { - var tmp = this.displayedMemory; - this.displayedMemory = this.nonDisplayedMemory; - this.nonDisplayedMemory = tmp; - this.writeScreen = this.nonDisplayedMemory; - logger.log("TEXT", "DISP: " + this.displayedMemory.getDisplayText()); - } - this.outputDataUpdate(); - }, - cc_TO: function cc_TO(nrCols) { - // Tab Offset 1,2, or 3 columns - logger.log("INFO", "TO(" + nrCols + ") - Tab Offset"); - this.writeScreen.moveCursor(nrCols); - }, - cc_MIDROW: function cc_MIDROW(secondByte) { - // Parse MIDROW command - var styles = { flash: false }; - styles.underline = secondByte % 2 === 1; - styles.italics = secondByte >= 0x2e; - if (!styles.italics) { - var colorIndex = Math.floor(secondByte / 2) - 0x10; - var colors = ["white", "green", "blue", "cyan", "red", "yellow", "magenta"]; - styles.foreground = colors[colorIndex]; - } else { - styles.foreground = "white"; - } - logger.log("INFO", "MIDROW: " + JSON.stringify(styles)); - this.writeScreen.setPen(styles); - }, - - outputDataUpdate: function outputDataUpdate() { - var t = logger.time; - if (t === null) { - return; - } - if (this.outputFilter) { - if (this.outputFilter.updateData) { - this.outputFilter.updateData(t, this.displayedMemory); - } - if (this.cueStartTime === null && !this.displayedMemory.isEmpty()) { - // Start of a new cue - this.cueStartTime = t; - } else { - if (!this.displayedMemory.equals(this.lastOutputScreen)) { - if (this.outputFilter.newCue) { - this.outputFilter.newCue(this.cueStartTime, t, this.lastOutputScreen); - } - this.cueStartTime = this.displayedMemory.isEmpty() ? null : t; - } - } - this.lastOutputScreen.copy(this.displayedMemory); - } - }, - - cueSplitAtTime: function cueSplitAtTime(t) { - if (this.outputFilter) { - if (!this.displayedMemory.isEmpty()) { - if (this.outputFilter.newCue) { - this.outputFilter.newCue(this.cueStartTime, t, this.displayedMemory); - } - this.cueStartTime = t; - } - } - } - }; - - /** - * Parse CEA-608 data and send decoded data to out1 and out2. - * @constructor - * @param {Number} field CEA-608 field (1 or 2) - * @param {CueHandler} out1 Output from channel1 newCue(startTime, endTime, captionScreen) - * @param {CueHandler} out2 Output from channel2 newCue(startTime, endTime, captionScreen) - */ - var Cea608Parser = function Cea608Parser(field, out1, out2) { - this.field = field || 1; - this.outputs = [out1, out2]; - this.channels = [new Cea608Channel(1, out1), new Cea608Channel(2, out2)]; - this.currChNr = -1; // Will be 1 or 2 - this.lastCmdA = null; // First byte of last command - this.lastCmdB = null; // Second byte of last command - this.bufferedData = []; - this.startTime = null; - this.lastTime = null; - this.dataCounters = { 'padding': 0, 'char': 0, 'cmd': 0, 'other': 0 }; - }; - - Cea608Parser.prototype = { - - getHandler: function getHandler(index) { - return this.channels[index].getHandler(); - }, - - setHandler: function setHandler(index, newHandler) { - this.channels[index].setHandler(newHandler); - }, - - /** - * Add data for time t in forms of list of bytes (unsigned ints). The bytes are treated as pairs. - */ - addData: function addData(t, byteList) { - var cmdFound, - a, - b, - charsFound = false; - - this.lastTime = t; - logger.setTime(t); - - for (var i = 0; i < byteList.length; i += 2) { - a = byteList[i] & 0x7f; - b = byteList[i + 1] & 0x7f; - - if (a >= 0x10 && a <= 0x1f && a === this.lastCmdA && b === this.lastCmdB) { - this.lastCmdA = null; - this.lastCmdB = null; - logger.log("DEBUG", "Repeated command (" + numArrayToHexArray([a, b]) + ") is dropped"); - continue; // Repeated commands are dropped (once) - } - - if (a === 0 && b === 0) { - this.dataCounters.padding += 2; - continue; - } else { - logger.log("DATA", "[" + numArrayToHexArray([byteList[i], byteList[i + 1]]) + "] -> (" + numArrayToHexArray([a, b]) + ")"); - } - cmdFound = this.parseCmd(a, b); - if (!cmdFound) { - cmdFound = this.parseMidrow(a, b); - } - if (!cmdFound) { - cmdFound = this.parsePAC(a, b); - } - if (!cmdFound) { - cmdFound = this.parseBackgroundAttributes(a, b); - } - if (!cmdFound) { - charsFound = this.parseChars(a, b); - if (charsFound) { - if (this.currChNr && this.currChNr >= 0) { - var channel = this.channels[this.currChNr - 1]; - channel.insertChars(charsFound); - } else { - logger.log("WARNING", "No channel found yet. TEXT-MODE?"); - } - } - } - if (cmdFound) { - this.dataCounters.cmd += 2; - } else if (charsFound) { - this.dataCounters.char += 2; - } else { - this.dataCounters.other += 2; - logger.log("WARNING", "Couldn't parse cleaned data " + numArrayToHexArray([a, b]) + " orig: " + numArrayToHexArray([byteList[i], byteList[i + 1]])); - } - } - }, - - /** - * Parse Command. - * @returns {Boolean} Tells if a command was found - */ - parseCmd: function parseCmd(a, b) { - var chNr = null; - - var cond1 = (a === 0x14 || a === 0x15 || a === 0x1C || a === 0x1D) && 0x20 <= b && b <= 0x2F; - var cond2 = (a === 0x17 || a === 0x1F) && 0x21 <= b && b <= 0x23; - if (!(cond1 || cond2)) { - return false; - } - - if (a === 0x14 || a === 0x15 || a === 0x17) { - chNr = 1; - } else { - chNr = 2; // (a === 0x1C || a === 0x1D || a=== 0x1f) - } - - var channel = this.channels[chNr - 1]; - - if (a === 0x14 || a === 0x15 || a === 0x1C || a === 0x1D) { - if (b === 0x20) { - channel.cc_RCL(); - } else if (b === 0x21) { - channel.cc_BS(); - } else if (b === 0x22) { - channel.cc_AOF(); - } else if (b === 0x23) { - channel.cc_AON(); - } else if (b === 0x24) { - channel.cc_DER(); - } else if (b === 0x25) { - channel.cc_RU(2); - } else if (b === 0x26) { - channel.cc_RU(3); - } else if (b === 0x27) { - channel.cc_RU(4); - } else if (b === 0x28) { - channel.cc_FON(); - } else if (b === 0x29) { - channel.cc_RDC(); - } else if (b === 0x2A) { - channel.cc_TR(); - } else if (b === 0x2B) { - channel.cc_RTD(); - } else if (b === 0x2C) { - channel.cc_EDM(); - } else if (b === 0x2D) { - channel.cc_CR(); - } else if (b === 0x2E) { - channel.cc_ENM(); - } else if (b === 0x2F) { - channel.cc_EOC(); - } - } else { - //a == 0x17 || a == 0x1F - channel.cc_TO(b - 0x20); - } - this.lastCmdA = a; - this.lastCmdB = b; - this.currChNr = chNr; - return true; - }, - - /** - * Parse midrow styling command - * @returns {Boolean} - */ - parseMidrow: function parseMidrow(a, b) { - var chNr = null; - - if ((a === 0x11 || a === 0x19) && 0x20 <= b && b <= 0x2f) { - if (a === 0x11) { - chNr = 1; - } else { - chNr = 2; - } - if (chNr !== this.currChNr) { - logger.log("ERROR", "Mismatch channel in midrow parsing"); - return false; - } - var channel = this.channels[chNr - 1]; - // cea608 spec says midrow codes should inject a space - channel.insertChars([0x20]); - channel.cc_MIDROW(b); - logger.log("DEBUG", "MIDROW (" + numArrayToHexArray([a, b]) + ")"); - this.lastCmdA = a; - this.lastCmdB = b; - return true; - } - return false; - }, - /** - * Parse Preable Access Codes (Table 53). - * @returns {Boolean} Tells if PAC found - */ - parsePAC: function parsePAC(a, b) { - - var chNr = null; - var row = null; - - var case1 = (0x11 <= a && a <= 0x17 || 0x19 <= a && a <= 0x1F) && 0x40 <= b && b <= 0x7F; - var case2 = (a === 0x10 || a === 0x18) && 0x40 <= b && b <= 0x5F; - if (!(case1 || case2)) { - return false; - } - - chNr = a <= 0x17 ? 1 : 2; - - if (0x40 <= b && b <= 0x5F) { - row = chNr === 1 ? rowsLowCh1[a] : rowsLowCh2[a]; - } else { - // 0x60 <= b <= 0x7F - row = chNr === 1 ? rowsHighCh1[a] : rowsHighCh2[a]; - } - var pacData = this.interpretPAC(row, b); - var channel = this.channels[chNr - 1]; - channel.setPAC(pacData); - this.lastCmdA = a; - this.lastCmdB = b; - this.currChNr = chNr; - return true; - }, - - /** - * Interpret the second byte of the pac, and return the information. - * @returns {Object} pacData with style parameters. - */ - interpretPAC: function interpretPAC(row, byte) { - var pacIndex = byte; - var pacData = { color: null, italics: false, indent: null, underline: false, row: row }; - - if (byte > 0x5F) { - pacIndex = byte - 0x60; - } else { - pacIndex = byte - 0x40; - } - pacData.underline = (pacIndex & 1) === 1; - if (pacIndex <= 0xd) { - pacData.color = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'white'][Math.floor(pacIndex / 2)]; - } else if (pacIndex <= 0xf) { - pacData.italics = true; - pacData.color = 'white'; - } else { - pacData.indent = Math.floor((pacIndex - 0x10) / 2) * 4; - } - return pacData; // Note that row has zero offset. The spec uses 1. - }, - - /** - * Parse characters. - * @returns An array with 1 to 2 codes corresponding to chars, if found. null otherwise. - */ - parseChars: function parseChars(a, b) { - - var channelNr = null, - charCodes = null, - charCode1 = null, - charCode2 = null; - - if (a >= 0x19) { - channelNr = 2; - charCode1 = a - 8; - } else { - channelNr = 1; - charCode1 = a; - } - if (0x11 <= charCode1 && charCode1 <= 0x13) { - // Special character - var oneCode = b; - if (charCode1 === 0x11) { - oneCode = b + 0x50; - } else if (charCode1 === 0x12) { - oneCode = b + 0x70; - } else { - oneCode = b + 0x90; - } - logger.log("INFO", "Special char '" + getCharForByte(oneCode) + "' in channel " + channelNr); - charCodes = [oneCode]; - this.lastCmdA = a; - this.lastCmdB = b; - } else if (0x20 <= a && a <= 0x7f) { - charCodes = b === 0 ? [a] : [a, b]; - this.lastCmdA = null; - this.lastCmdB = null; - } - if (charCodes) { - var hexCodes = numArrayToHexArray(charCodes); - logger.log("DEBUG", "Char codes = " + hexCodes.join(",")); - } - return charCodes; - }, - - /** - * Parse extended background attributes as well as new foreground color black. - * @returns{Boolean} Tells if background attributes are found - */ - parseBackgroundAttributes: function parseBackgroundAttributes(a, b) { - var bkgData, index, chNr, channel; - - var case1 = (a === 0x10 || a === 0x18) && 0x20 <= b && b <= 0x2f; - var case2 = (a === 0x17 || a === 0x1f) && 0x2d <= b && b <= 0x2f; - if (!(case1 || case2)) { - return false; - } - bkgData = {}; - if (a === 0x10 || a === 0x18) { - index = Math.floor((b - 0x20) / 2); - bkgData.background = backgroundColors[index]; - if (b % 2 === 1) { - bkgData.background = bkgData.background + "_semi"; - } - } else if (b === 0x2d) { - bkgData.background = "transparent"; - } else { - bkgData.foreground = "black"; - if (b === 0x2f) { - bkgData.underline = true; - } - } - chNr = a < 0x18 ? 1 : 2; - channel = this.channels[chNr - 1]; - channel.setBkgData(bkgData); - this.lastCmdA = a; - this.lastCmdB = b; - return true; - }, - - /** - * Reset state of parser and its channels. - */ - reset: function reset() { - for (var i = 0; i < this.channels.length; i++) { - if (this.channels[i]) { - this.channels[i].reset(); - } - } - this.lastCmdA = null; - this.lastCmdB = null; - }, - - /** - * Trigger the generation of a cue, and the start of a new one if displayScreens are not empty. - */ - cueSplitAtTime: function cueSplitAtTime(t) { - for (var i = 0; i < this.channels.length; i++) { - if (this.channels[i]) { - this.channels[i].cueSplitAtTime(t); - } - } - } - }; - - /** - * Find ranges corresponding to SEA CEA-608 NALUS in sizeprepended NALU array. - * @param {raw} dataView of binary data - * @param {startPos} start position in raw - * @param {size} total size of data in raw to consider - * @returns - */ - var findCea608Nalus = function findCea608Nalus(raw, startPos, size) { - var nalSize = 0, - cursor = startPos, - nalType = 0, - cea608NaluRanges = [], - - // Check SEI data according to ANSI-SCTE 128 - isCEA608SEI = function isCEA608SEI(payloadType, payloadSize, raw, pos) { - if (payloadType !== 4 || payloadSize < 8) { - return null; - } - var countryCode = raw.getUint8(pos); - var providerCode = raw.getUint16(pos + 1); - var userIdentifier = raw.getUint32(pos + 3); - var userDataTypeCode = raw.getUint8(pos + 7); - return countryCode == 0xB5 && providerCode == 0x31 && userIdentifier == 0x47413934 && userDataTypeCode == 0x3; - }; - while (cursor < startPos + size) { - nalSize = raw.getUint32(cursor); - nalType = raw.getUint8(cursor + 4) & 0x1F; - //console.log(time + " NAL " + nalType); - if (nalType === 6) { - // SEI NAL Unit. The NAL header is the first byte - //console.log("SEI NALU of size " + nalSize + " at time " + time); - var pos = cursor + 5; - var payloadType = -1; - while (pos < cursor + 4 + nalSize - 1) { - // The last byte should be rbsp_trailing_bits - payloadType = 0; - var b = 0xFF; - while (b === 0xFF) { - b = raw.getUint8(pos); - payloadType += b; - pos++; - } - var payloadSize = 0; - b = 0xFF; - while (b === 0xFF) { - b = raw.getUint8(pos); - payloadSize += b; - pos++; - } - if (isCEA608SEI(payloadType, payloadSize, raw, pos)) { - //console.log("CEA608 SEI " + time + " " + payloadSize); - cea608NaluRanges.push([pos, payloadSize]); - } - pos += payloadSize; - } - } - cursor += nalSize + 4; - } - return cea608NaluRanges; - }; - - var extractCea608DataFromRange = function extractCea608DataFromRange(raw, cea608Range) { - var pos = cea608Range[0]; - var fieldData = [[], []]; - - pos += 8; // Skip the identifier up to userDataTypeCode - var ccCount = raw.getUint8(pos) & 0x1f; - pos += 2; // Advance 1 and skip reserved byte - - for (var i = 0; i < ccCount; i++) { - var byte = raw.getUint8(pos); - var ccValid = byte & 0x4; - var ccType = byte & 0x3; - pos++; - var ccData1 = raw.getUint8(pos); // Keep parity bit - pos++; - var ccData2 = raw.getUint8(pos); // Keep parity bit - pos++; - if (ccValid && (ccData1 & 0x7f) + (ccData2 & 0x7f) !== 0) { - //Check validity and non-empty data - if (ccType === 0) { - fieldData[0].push(ccData1); - fieldData[0].push(ccData2); - } else if (ccType === 1) { - fieldData[1].push(ccData1); - fieldData[1].push(ccData2); - } - } - } - return fieldData; - }; - - exports.logger = logger; - exports.PenState = PenState; - exports.CaptionScreen = CaptionScreen; - exports.Cea608Parser = Cea608Parser; - exports.findCea608Nalus = findCea608Nalus; - exports.extractCea608DataFromRange = extractCea608DataFromRange; -})(typeof exports === 'undefined' ? undefined.cea608parser = {} : exports); - -},{}],3:[function(_dereq_,module,exports){ -/* - Copyright 2011-2013 Abdulla Abdurakhmanov - Original sources are available at https://code.google.com/p/x2js/ - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - */ - -/* - Further modified for dashjs to: - - keep track of children nodes in order in attribute __children. - - add type conversion matchers - - re-add ignoreRoot - - allow zero-length attributePrefix - - don't add white-space text nodes - - remove explicit RequireJS support -*/ - -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -function X2JS(config) { - 'use strict'; - - var VERSION = "1.2.0"; - - config = config || {}; - initConfigDefaults(); - initRequiredPolyfills(); - - function initConfigDefaults() { - if (config.escapeMode === undefined) { - config.escapeMode = true; - } - - if (config.attributePrefix === undefined) { - config.attributePrefix = "_"; - } - - config.arrayAccessForm = config.arrayAccessForm || "none"; - config.emptyNodeForm = config.emptyNodeForm || "text"; - - if (config.enableToStringFunc === undefined) { - config.enableToStringFunc = true; - } - config.arrayAccessFormPaths = config.arrayAccessFormPaths || []; - if (config.skipEmptyTextNodesForObj === undefined) { - config.skipEmptyTextNodesForObj = true; - } - if (config.stripWhitespaces === undefined) { - config.stripWhitespaces = true; - } - config.datetimeAccessFormPaths = config.datetimeAccessFormPaths || []; - - if (config.useDoubleQuotes === undefined) { - config.useDoubleQuotes = false; - } - - config.xmlElementsFilter = config.xmlElementsFilter || []; - config.jsonPropertiesFilter = config.jsonPropertiesFilter || []; - - if (config.keepCData === undefined) { - config.keepCData = false; - } - - if (config.ignoreRoot === undefined) { - config.ignoreRoot = false; - } - } - - var DOMNodeTypes = { - ELEMENT_NODE: 1, - TEXT_NODE: 3, - CDATA_SECTION_NODE: 4, - COMMENT_NODE: 8, - DOCUMENT_NODE: 9 - }; - - function initRequiredPolyfills() {} - - function getNodeLocalName(node) { - var nodeLocalName = node.localName; - if (nodeLocalName == null) // Yeah, this is IE!! - nodeLocalName = node.baseName; - if (nodeLocalName == null || nodeLocalName == "") // =="" is IE too - nodeLocalName = node.nodeName; - return nodeLocalName; - } - - function getNodePrefix(node) { - return node.prefix; - } - - function escapeXmlChars(str) { - if (typeof str == "string") return str.replace(/&/g, '&').replace(//g, '>').replace(/"/g, '"').replace(/'/g, ''');else return str; - } - - function unescapeXmlChars(str) { - return str.replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"').replace(/'/g, "'").replace(/&/g, '&'); - } - - function checkInStdFiltersArrayForm(stdFiltersArrayForm, obj, name, path) { - var idx = 0; - for (; idx < stdFiltersArrayForm.length; idx++) { - var filterPath = stdFiltersArrayForm[idx]; - if (typeof filterPath === "string") { - if (filterPath == path) break; - } else if (filterPath instanceof RegExp) { - if (filterPath.test(path)) break; - } else if (typeof filterPath === "function") { - if (filterPath(obj, name, path)) break; - } - } - return idx != stdFiltersArrayForm.length; - } - - function toArrayAccessForm(obj, childName, path) { - switch (config.arrayAccessForm) { - case "property": - if (!(obj[childName] instanceof Array)) obj[childName + "_asArray"] = [obj[childName]];else obj[childName + "_asArray"] = obj[childName]; - break; - /*case "none": - break;*/ - } - - if (!(obj[childName] instanceof Array) && config.arrayAccessFormPaths.length > 0) { - if (checkInStdFiltersArrayForm(config.arrayAccessFormPaths, obj, childName, path)) { - obj[childName] = [obj[childName]]; - } - } - } - - function fromXmlDateTime(prop) { - // Implementation based up on http://stackoverflow.com/questions/8178598/xml-datetime-to-javascript-date-object - // Improved to support full spec and optional parts - var bits = prop.split(/[-T:+Z]/g); - - var d = new Date(bits[0], bits[1] - 1, bits[2]); - var secondBits = bits[5].split("\."); - d.setHours(bits[3], bits[4], secondBits[0]); - if (secondBits.length > 1) d.setMilliseconds(secondBits[1]); - - // Get supplied time zone offset in minutes - if (bits[6] && bits[7]) { - var offsetMinutes = bits[6] * 60 + Number(bits[7]); - var sign = /\d\d-\d\d:\d\d$/.test(prop) ? '-' : '+'; - - // Apply the sign - offsetMinutes = 0 + (sign == '-' ? -1 * offsetMinutes : offsetMinutes); - - // Apply offset and local timezone - d.setMinutes(d.getMinutes() - offsetMinutes - d.getTimezoneOffset()); - } else if (prop.indexOf("Z", prop.length - 1) !== -1) { - d = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours(), d.getMinutes(), d.getSeconds(), d.getMilliseconds())); - } - - // d is now a local time equivalent to the supplied time - return d; - } - - function checkFromXmlDateTimePaths(value, childName, fullPath) { - if (config.datetimeAccessFormPaths.length > 0) { - var path = fullPath.split("\.#")[0]; - if (checkInStdFiltersArrayForm(config.datetimeAccessFormPaths, value, childName, path)) { - return fromXmlDateTime(value); - } else return value; - } else return value; - } - - function checkXmlElementsFilter(obj, childType, childName, childPath) { - if (childType == DOMNodeTypes.ELEMENT_NODE && config.xmlElementsFilter.length > 0) { - return checkInStdFiltersArrayForm(config.xmlElementsFilter, obj, childName, childPath); - } else return true; - } - - function parseDOMChildren(node, path) { - if (node.nodeType == DOMNodeTypes.DOCUMENT_NODE) { - var result = new Object(); - var nodeChildren = node.childNodes; - // Alternative for firstElementChild which is not supported in some environments - for (var cidx = 0; cidx < nodeChildren.length; cidx++) { - var child = nodeChildren[cidx]; - if (child.nodeType == DOMNodeTypes.ELEMENT_NODE) { - if (config.ignoreRoot) { - result = parseDOMChildren(child); - } else { - result = {}; - var childName = getNodeLocalName(child); - result[childName] = parseDOMChildren(child); - } - } - } - return result; - } else if (node.nodeType == DOMNodeTypes.ELEMENT_NODE) { - var result = new Object(); - result.__cnt = 0; - - var children = []; - var nodeChildren = node.childNodes; - - // Children nodes - for (var cidx = 0; cidx < nodeChildren.length; cidx++) { - var child = nodeChildren[cidx]; - var childName = getNodeLocalName(child); - - if (child.nodeType != DOMNodeTypes.COMMENT_NODE) { - var childPath = path + "." + childName; - if (checkXmlElementsFilter(result, child.nodeType, childName, childPath)) { - result.__cnt++; - if (result[childName] == null) { - var c = parseDOMChildren(child, childPath); - if (childName != "#text" || /[^\s]/.test(c)) { - var o = {}; - o[childName] = c; - children.push(o); - } - result[childName] = c; - toArrayAccessForm(result, childName, childPath); - } else { - if (result[childName] != null) { - if (!(result[childName] instanceof Array)) { - result[childName] = [result[childName]]; - toArrayAccessForm(result, childName, childPath); - } - } - - var c = parseDOMChildren(child, childPath); - if (childName != "#text" || /[^\s]/.test(c)) { - // Don't add white-space text nodes - var o = {}; - o[childName] = c; - children.push(o); - } - result[childName][result[childName].length] = c; - } - } - } - } - - result.__children = children; - - // Attributes - var nodeLocalName = getNodeLocalName(node); - for (var aidx = 0; aidx < node.attributes.length; aidx++) { - var attr = node.attributes[aidx]; - result.__cnt++; - - var value2 = attr.value; - for (var m = 0, ml = config.matchers.length; m < ml; m++) { - var matchobj = config.matchers[m]; - if (matchobj.test(attr, nodeLocalName)) value2 = matchobj.converter(attr.value); - } - - result[config.attributePrefix + attr.name] = value2; - } - - // Node namespace prefix - var nodePrefix = getNodePrefix(node); - if (nodePrefix != null && nodePrefix != "") { - result.__cnt++; - result.__prefix = nodePrefix; - } - - if (result["#text"] != null) { - result.__text = result["#text"]; - if (result.__text instanceof Array) { - result.__text = result.__text.join("\n"); - } - //if(config.escapeMode) - // result.__text = unescapeXmlChars(result.__text); - if (config.stripWhitespaces) result.__text = result.__text.trim(); - delete result["#text"]; - if (config.arrayAccessForm == "property") delete result["#text_asArray"]; - result.__text = checkFromXmlDateTimePaths(result.__text, childName, path + "." + childName); - } - if (result["#cdata-section"] != null) { - result.__cdata = result["#cdata-section"]; - delete result["#cdata-section"]; - if (config.arrayAccessForm == "property") delete result["#cdata-section_asArray"]; - } - - if (result.__cnt == 0 && config.emptyNodeForm == "text") { - result = ''; - } else if (result.__cnt == 1 && result.__text != null) { - result = result.__text; - } else if (result.__cnt == 1 && result.__cdata != null && !config.keepCData) { - result = result.__cdata; - } else if (result.__cnt > 1 && result.__text != null && config.skipEmptyTextNodesForObj) { - if (config.stripWhitespaces && result.__text == "" || result.__text.trim() == "") { - delete result.__text; - } - } - delete result.__cnt; - - if (config.enableToStringFunc && (result.__text != null || result.__cdata != null)) { - result.toString = function () { - return (this.__text != null ? this.__text : '') + (this.__cdata != null ? this.__cdata : ''); - }; - } - - return result; - } else if (node.nodeType == DOMNodeTypes.TEXT_NODE || node.nodeType == DOMNodeTypes.CDATA_SECTION_NODE) { - return node.nodeValue; - } - } - - function startTag(jsonObj, element, attrList, closed) { - var resultStr = "<" + (jsonObj != null && jsonObj.__prefix != null ? jsonObj.__prefix + ":" : "") + element; - if (attrList != null) { - for (var aidx = 0; aidx < attrList.length; aidx++) { - var attrName = attrList[aidx]; - var attrVal = jsonObj[attrName]; - if (config.escapeMode) attrVal = escapeXmlChars(attrVal); - resultStr += " " + attrName.substr(config.attributePrefix.length) + "="; - if (config.useDoubleQuotes) resultStr += '"' + attrVal + '"';else resultStr += "'" + attrVal + "'"; - } - } - if (!closed) resultStr += ">";else resultStr += "/>"; - return resultStr; - } - - function endTag(jsonObj, elementName) { - return ""; - } - - function endsWith(str, suffix) { - return str.indexOf(suffix, str.length - suffix.length) !== -1; - } - - function jsonXmlSpecialElem(jsonObj, jsonObjField) { - if (config.arrayAccessForm == "property" && endsWith(jsonObjField.toString(), "_asArray") || jsonObjField.toString().indexOf(config.attributePrefix) == 0 || jsonObjField.toString().indexOf("__") == 0 || jsonObj[jsonObjField] instanceof Function) return true;else return false; - } - - function jsonXmlElemCount(jsonObj) { - var elementsCnt = 0; - if (jsonObj instanceof Object) { - for (var it in jsonObj) { - if (jsonXmlSpecialElem(jsonObj, it)) continue; - elementsCnt++; - } - } - return elementsCnt; - } - - function checkJsonObjPropertiesFilter(jsonObj, propertyName, jsonObjPath) { - return config.jsonPropertiesFilter.length == 0 || jsonObjPath == "" || checkInStdFiltersArrayForm(config.jsonPropertiesFilter, jsonObj, propertyName, jsonObjPath); - } - - function parseJSONAttributes(jsonObj) { - var attrList = []; - if (jsonObj instanceof Object) { - for (var ait in jsonObj) { - if (ait.toString().indexOf("__") == -1 && ait.toString().indexOf(config.attributePrefix) == 0) { - attrList.push(ait); - } - } - } - return attrList; - } - - function parseJSONTextAttrs(jsonTxtObj) { - var result = ""; - - if (jsonTxtObj.__cdata != null) { - result += ""; - } - - if (jsonTxtObj.__text != null) { - if (config.escapeMode) result += escapeXmlChars(jsonTxtObj.__text);else result += jsonTxtObj.__text; - } - return result; - } - - function parseJSONTextObject(jsonTxtObj) { - var result = ""; - - if (jsonTxtObj instanceof Object) { - result += parseJSONTextAttrs(jsonTxtObj); - } else if (jsonTxtObj != null) { - if (config.escapeMode) result += escapeXmlChars(jsonTxtObj);else result += jsonTxtObj; - } - - return result; - } - - function getJsonPropertyPath(jsonObjPath, jsonPropName) { - if (jsonObjPath === "") { - return jsonPropName; - } else return jsonObjPath + "." + jsonPropName; - } - - function parseJSONArray(jsonArrRoot, jsonArrObj, attrList, jsonObjPath) { - var result = ""; - if (jsonArrRoot.length == 0) { - result += startTag(jsonArrRoot, jsonArrObj, attrList, true); - } else { - for (var arIdx = 0; arIdx < jsonArrRoot.length; arIdx++) { - result += startTag(jsonArrRoot[arIdx], jsonArrObj, parseJSONAttributes(jsonArrRoot[arIdx]), false); - result += parseJSONObject(jsonArrRoot[arIdx], getJsonPropertyPath(jsonObjPath, jsonArrObj)); - result += endTag(jsonArrRoot[arIdx], jsonArrObj); - } - } - return result; - } - - function parseJSONObject(jsonObj, jsonObjPath) { - var result = ""; - - var elementsCnt = jsonXmlElemCount(jsonObj); - - if (elementsCnt > 0) { - for (var it in jsonObj) { - - if (jsonXmlSpecialElem(jsonObj, it) || jsonObjPath != "" && !checkJsonObjPropertiesFilter(jsonObj, it, getJsonPropertyPath(jsonObjPath, it))) continue; - - var subObj = jsonObj[it]; - - var attrList = parseJSONAttributes(subObj); - - if (subObj == null || subObj == undefined) { - result += startTag(subObj, it, attrList, true); - } else if (subObj instanceof Object) { - - if (subObj instanceof Array) { - result += parseJSONArray(subObj, it, attrList, jsonObjPath); - } else if (subObj instanceof Date) { - result += startTag(subObj, it, attrList, false); - result += subObj.toISOString(); - result += endTag(subObj, it); - } else { - var subObjElementsCnt = jsonXmlElemCount(subObj); - if (subObjElementsCnt > 0 || subObj.__text != null || subObj.__cdata != null) { - result += startTag(subObj, it, attrList, false); - result += parseJSONObject(subObj, getJsonPropertyPath(jsonObjPath, it)); - result += endTag(subObj, it); - } else { - result += startTag(subObj, it, attrList, true); - } - } - } else { - result += startTag(subObj, it, attrList, false); - result += parseJSONTextObject(subObj); - result += endTag(subObj, it); - } - } - } - result += parseJSONTextObject(jsonObj); - - return result; - } - - this.parseXmlString = function (xmlDocStr) { - var isIEParser = window.ActiveXObject || "ActiveXObject" in window; - if (xmlDocStr === undefined) { - return null; - } - var xmlDoc; - if (window.DOMParser) { - var parser = new window.DOMParser(); - var parsererrorNS = null; - try { - xmlDoc = parser.parseFromString(xmlDocStr, "text/xml"); - if (xmlDoc.getElementsByTagNameNS("*", "parsererror").length > 0) { - xmlDoc = null; - } - } catch (err) { - xmlDoc = null; - } - } else { - // IE :( - if (xmlDocStr.indexOf("") + 2); - } - xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); - xmlDoc.async = "false"; - xmlDoc.loadXML(xmlDocStr); - } - return xmlDoc; - }; - - this.asArray = function (prop) { - if (prop === undefined || prop == null) return [];else if (prop instanceof Array) return prop;else return [prop]; - }; - - this.toXmlDateTime = function (dt) { - if (dt instanceof Date) return dt.toISOString();else if (typeof dt === 'number') return new Date(dt).toISOString();else return null; - }; - - this.asDateTime = function (prop) { - if (typeof prop == "string") { - return fromXmlDateTime(prop); - } else return prop; - }; - - this.xml2json = function (xmlDoc) { - return parseDOMChildren(xmlDoc); - }; - - this.xml_str2json = function (xmlDocStr) { - var xmlDoc = this.parseXmlString(xmlDocStr); - if (xmlDoc != null) return this.xml2json(xmlDoc);else return null; - }; - - this.json2xml_str = function (jsonObj) { - return parseJSONObject(jsonObj, ""); - }; - - this.json2xml = function (jsonObj) { - var xmlDocStr = this.json2xml_str(jsonObj); - return this.parseXmlString(xmlDocStr); - }; - - this.getVersion = function () { - return VERSION; - }; -} - -exports["default"] = X2JS; -module.exports = exports["default"]; - -},{}],4:[function(_dereq_,module,exports){ -(function (global){ -/** - * The copyright in this software is being made available under the BSD License, - * included below. This software may be subject to other third party and contributor - * rights, including patent rights, and no such rights are granted under this license. - * - * Copyright (c) 2013, Dash Industry Forum. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation and/or - * other materials provided with the distribution. - * * Neither the name of Dash Industry Forum nor the names of its - * contributors may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -'use strict'; - -Object.defineProperty(exports, '__esModule', { - value: true -}); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - -var _srcStreamingMediaPlayer = _dereq_(91); - -var _srcStreamingMediaPlayer2 = _interopRequireDefault(_srcStreamingMediaPlayer); - -var _srcCoreFactoryMaker = _dereq_(47); - -var _srcCoreFactoryMaker2 = _interopRequireDefault(_srcCoreFactoryMaker); - -var _srcCoreDebug = _dereq_(45); - -var _srcCoreDebug2 = _interopRequireDefault(_srcCoreDebug); - -var _srcCoreVersion = _dereq_(48); - -// Shove both of these into the global scope -var context = typeof window !== 'undefined' && window || global; - -var dashjs = context.dashjs; -if (!dashjs) { - dashjs = context.dashjs = {}; -} - -dashjs.MediaPlayer = _srcStreamingMediaPlayer2['default']; -dashjs.FactoryMaker = _srcCoreFactoryMaker2['default']; -dashjs.Debug = _srcCoreDebug2['default']; -dashjs.Version = (0, _srcCoreVersion.getVersionString)(); - -exports['default'] = dashjs; -exports.MediaPlayer = _srcStreamingMediaPlayer2['default']; -exports.FactoryMaker = _srcCoreFactoryMaker2['default']; -exports.Debug = _srcCoreDebug2['default']; - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) - -},{"45":45,"47":47,"48":48,"91":91}],5:[function(_dereq_,module,exports){ -/*! codem-isoboxer v0.3.5 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */ -var ISOBoxer = {}; - -ISOBoxer.parseBuffer = function(arrayBuffer) { - return new ISOFile(arrayBuffer).parse(); -}; - -ISOBoxer.addBoxProcessor = function(type, parser) { - if (typeof type !== 'string' || typeof parser !== 'function') { - return; - } - ISOBox.prototype._boxProcessors[type] = parser; -}; - -ISOBoxer.createFile = function() { - return new ISOFile(); -}; - -// See ISOBoxer.append() for 'pos' parameter syntax -ISOBoxer.createBox = function(type, parent, pos) { - var newBox = ISOBox.create(type); - if (parent) { - parent.append(newBox, pos); - } - return newBox; -}; - -// See ISOBoxer.append() for 'pos' parameter syntax -ISOBoxer.createFullBox = function(type, parent, pos) { - var newBox = ISOBoxer.createBox(type, parent, pos); - newBox.version = 0; - newBox.flags = 0; - return newBox; -}; - -ISOBoxer.Utils = {}; -ISOBoxer.Utils.dataViewToString = function(dataView, encoding) { - var impliedEncoding = encoding || 'utf-8'; - if (typeof TextDecoder !== 'undefined') { - return new TextDecoder(impliedEncoding).decode(dataView); - } - var a = []; - var i = 0; - - if (impliedEncoding === 'utf-8') { - /* The following algorithm is essentially a rewrite of the UTF8.decode at - http://bannister.us/weblog/2007/simple-base64-encodedecode-javascript/ - */ - - while (i < dataView.byteLength) { - var c = dataView.getUint8(i++); - if (c < 0x80) { - // 1-byte character (7 bits) - } else if (c < 0xe0) { - // 2-byte character (11 bits) - c = (c & 0x1f) << 6; - c |= (dataView.getUint8(i++) & 0x3f); - } else if (c < 0xf0) { - // 3-byte character (16 bits) - c = (c & 0xf) << 12; - c |= (dataView.getUint8(i++) & 0x3f) << 6; - c |= (dataView.getUint8(i++) & 0x3f); - } else { - // 4-byte character (21 bits) - c = (c & 0x7) << 18; - c |= (dataView.getUint8(i++) & 0x3f) << 12; - c |= (dataView.getUint8(i++) & 0x3f) << 6; - c |= (dataView.getUint8(i++) & 0x3f); - } - a.push(String.fromCharCode(c)); - } - } else { // Just map byte-by-byte (probably wrong) - while (i < dataView.byteLength) { - a.push(String.fromCharCode(dataView.getUint8(i++))); - } - } - return a.join(''); -}; - -ISOBoxer.Utils.utf8ToByteArray = function(string) { - // Only UTF-8 encoding is supported by TextEncoder - var u, i; - if (typeof TextEncoder !== 'undefined') { - u = new TextEncoder().encode(string); - } else { - u = []; - for (i = 0; i < string.length; ++i) { - var c = string.charCodeAt(i); - if (c < 0x80) { - u.push(c); - } else if (c < 0x800) { - u.push(0xC0 | (c >> 6)); - u.push(0x80 | (63 & c)); - } else if (c < 0x10000) { - u.push(0xE0 | (c >> 12)); - u.push(0x80 | (63 & (c >> 6))); - u.push(0x80 | (63 & c)); - } else { - u.push(0xF0 | (c >> 18)); - u.push(0x80 | (63 & (c >> 12))); - u.push(0x80 | (63 & (c >> 6))); - u.push(0x80 | (63 & c)); - } - } - } - return u; -}; - -// Method to append a box in the list of child boxes -// The 'pos' parameter can be either: -// - (number) a position index at which to insert the new box -// - (string) the type of the box after which to insert the new box -// - (object) the box after which to insert the new box -ISOBoxer.Utils.appendBox = function(parent, box, pos) { - box._offset = parent._cursor.offset; - box._root = (parent._root ? parent._root : parent); - box._raw = parent._raw; - box._parent = parent; - - if (pos === -1) { - // The new box is a sub-box of the parent but not added in boxes array, - // for example when the new box is set as an entry (see dref and stsd for example) - return; - } - - if (pos === undefined || pos === null) { - parent.boxes.push(box); - return; - } - - var index = -1, - type; - - if (typeof pos === "number") { - index = pos; - } else { - if (typeof pos === "string") { - type = pos; - } else if (typeof pos === "object" && pos.type) { - type = pos.type; - } else { - parent.boxes.push(box); - return; - } - - for (var i = 0; i < parent.boxes.length; i++) { - if (type === parent.boxes[i].type) { - index = i + 1; - break; - } - } - } - parent.boxes.splice(index, 0, box); -}; - -if (typeof exports !== 'undefined') { - exports.parseBuffer = ISOBoxer.parseBuffer; - exports.addBoxProcessor = ISOBoxer.addBoxProcessor; - exports.createFile = ISOBoxer.createFile; - exports.createBox = ISOBoxer.createBox; - exports.createFullBox = ISOBoxer.createFullBox; - exports.Utils = ISOBoxer.Utils; -} - -ISOBoxer.Cursor = function(initialOffset) { - this.offset = (typeof initialOffset == 'undefined' ? 0 : initialOffset); -}; - -var ISOFile = function(arrayBuffer) { - this._cursor = new ISOBoxer.Cursor(); - this.boxes = []; - if (arrayBuffer) { - this._raw = new DataView(arrayBuffer); - } -}; - -ISOFile.prototype.fetch = function(type) { - var result = this.fetchAll(type, true); - return (result.length ? result[0] : null); -}; - -ISOFile.prototype.fetchAll = function(type, returnEarly) { - var result = []; - ISOFile._sweep.call(this, type, result, returnEarly); - return result; -}; - -ISOFile.prototype.parse = function() { - this._cursor.offset = 0; - this.boxes = []; - while (this._cursor.offset < this._raw.byteLength) { - var box = ISOBox.parse(this); - - // Box could not be parsed - if (typeof box.type === 'undefined') break; - - this.boxes.push(box); - } - return this; -}; - -ISOFile._sweep = function(type, result, returnEarly) { - if (this.type && this.type == type) result.push(this); - for (var box in this.boxes) { - if (result.length && returnEarly) return; - ISOFile._sweep.call(this.boxes[box], type, result, returnEarly); - } -}; - -ISOFile.prototype.write = function() { - - var length = 0, - i; - - for (i = 0; i < this.boxes.length; i++) { - length += this.boxes[i].getLength(false); - } - - var bytes = new Uint8Array(length); - this._rawo = new DataView(bytes.buffer); - this.bytes = bytes; - this._cursor.offset = 0; - - for (i = 0; i < this.boxes.length; i++) { - this.boxes[i].write(); - } - - return bytes.buffer; -}; - -ISOFile.prototype.append = function(box, pos) { - ISOBoxer.Utils.appendBox(this, box, pos); -}; -var ISOBox = function() { - this._cursor = new ISOBoxer.Cursor(); -}; - -ISOBox.parse = function(parent) { - var newBox = new ISOBox(); - newBox._offset = parent._cursor.offset; - newBox._root = (parent._root ? parent._root : parent); - newBox._raw = parent._raw; - newBox._parent = parent; - newBox._parseBox(); - parent._cursor.offset = newBox._raw.byteOffset + newBox._raw.byteLength; - return newBox; -}; - -ISOBox.create = function(type) { - var newBox = new ISOBox(); - newBox.type = type; - newBox.boxes = []; - return newBox; -}; - -ISOBox.prototype._boxContainers = ['dinf', 'edts', 'mdia', 'meco', 'mfra', 'minf', 'moof', 'moov', 'mvex', 'stbl', 'strk', 'traf', 'trak', 'tref', 'udta', 'vttc', 'sinf', 'schi', 'encv', 'enca']; - -ISOBox.prototype._boxProcessors = {}; - -/////////////////////////////////////////////////////////////////////////////////////////////////// -// Generic read/write functions - -ISOBox.prototype._procField = function (name, type, size) { - if (this._parsing) { - this[name] = this._readField(type, size); - } - else { - this._writeField(type, size, this[name]); - } -}; - -ISOBox.prototype._procFieldArray = function (name, length, type, size) { - var i; - if (this._parsing) { - this[name] = []; - for (i = 0; i < length; i++) { - this[name][i] = this._readField(type, size); - } - } - else { - for (i = 0; i < this[name].length; i++) { - this._writeField(type, size, this[name][i]); - } - } -}; - -ISOBox.prototype._procFullBox = function() { - this._procField('version', 'uint', 8); - this._procField('flags', 'uint', 24); -}; - -ISOBox.prototype._procEntries = function(name, length, fn) { - var i; - if (this._parsing) { - this[name] = []; - for (i = 0; i < length; i++) { - this[name].push({}); - fn.call(this, this[name][i]); - } - } - else { - for (i = 0; i < length; i++) { - fn.call(this, this[name][i]); - } - } -}; - -ISOBox.prototype._procSubEntries = function(entry, name, length, fn) { - var i; - if (this._parsing) { - entry[name] = []; - for (i = 0; i < length; i++) { - entry[name].push({}); - fn.call(this, entry[name][i]); - } - } - else { - for (i = 0; i < length; i++) { - fn.call(this, entry[name][i]); - } - } -}; - -ISOBox.prototype._procEntryField = function (entry, name, type, size) { - if (this._parsing) { - entry[name] = this._readField(type, size); - } - else { - this._writeField(type, size, entry[name]); - } -}; - -ISOBox.prototype._procSubBoxes = function(name, length) { - var i; - if (this._parsing) { - this[name] = []; - for (i = 0; i < length; i++) { - this[name].push(ISOBox.parse(this)); - } - } - else { - for (i = 0; i < length; i++) { - if (this._rawo) { - this[name][i].write(); - } else { - this.size += this[name][i].getLength(); - } - } - } -}; - -/////////////////////////////////////////////////////////////////////////////////////////////////// -// Read/parse functions - -ISOBox.prototype._readField = function(type, size) { - switch (type) { - case 'uint': - return this._readUint(size); - case 'int': - return this._readInt(size); - case 'template': - return this._readTemplate(size); - case 'string': - return (size === -1) ? this._readTerminatedString() : this._readString(size); - case 'data': - return this._readData(size); - case 'utf8': - return this._readUTF8String(); - default: - return -1; - } -}; - -ISOBox.prototype._readInt = function(size) { - var result = null, - offset = this._cursor.offset - this._raw.byteOffset; - switch(size) { - case 8: - result = this._raw.getInt8(offset); - break; - case 16: - result = this._raw.getInt16(offset); - break; - case 32: - result = this._raw.getInt32(offset); - break; - case 64: - // Warning: JavaScript cannot handle 64-bit integers natively. - // This will give unexpected results for integers >= 2^53 - var s1 = this._raw.getInt32(offset); - var s2 = this._raw.getInt32(offset + 4); - result = (s1 * Math.pow(2,32)) + s2; - break; - } - this._cursor.offset += (size >> 3); - return result; -}; - -ISOBox.prototype._readUint = function(size) { - var result = null, - offset = this._cursor.offset - this._raw.byteOffset, - s1, s2; - switch(size) { - case 8: - result = this._raw.getUint8(offset); - break; - case 16: - result = this._raw.getUint16(offset); - break; - case 24: - s1 = this._raw.getUint16(offset); - s2 = this._raw.getUint8(offset + 2); - result = (s1 << 8) + s2; - break; - case 32: - result = this._raw.getUint32(offset); - break; - case 64: - // Warning: JavaScript cannot handle 64-bit integers natively. - // This will give unexpected results for integers >= 2^53 - s1 = this._raw.getUint32(offset); - s2 = this._raw.getUint32(offset + 4); - result = (s1 * Math.pow(2,32)) + s2; - break; - } - this._cursor.offset += (size >> 3); - return result; -}; - -ISOBox.prototype._readString = function(length) { - var str = ''; - for (var c = 0; c < length; c++) { - var char = this._readUint(8); - str += String.fromCharCode(char); - } - return str; -}; - -ISOBox.prototype._readTemplate = function(size) { - var pre = this._readUint(size / 2); - var post = this._readUint(size / 2); - return pre + (post / Math.pow(2, size / 2)); -}; - -ISOBox.prototype._readTerminatedString = function() { - var str = ''; - while (this._cursor.offset - this._offset < this._raw.byteLength) { - var char = this._readUint(8); - if (char === 0) break; - str += String.fromCharCode(char); - } - return str; -}; - -ISOBox.prototype._readData = function(size) { - var length = (size > 0) ? size : (this._raw.byteLength - (this._cursor.offset - this._offset)); - if (length > 0) { - var data = new Uint8Array(this._raw.buffer, this._cursor.offset, length); - - this._cursor.offset += length; - return data; - } - else { - return null; - } -}; - -ISOBox.prototype._readUTF8String = function() { - var length = this._raw.byteLength - (this._cursor.offset - this._offset); - var data = null; - if (length > 0) { - data = new DataView(this._raw.buffer, this._cursor.offset, length); - this._cursor.offset += length; - } - - return data ? ISOBoxer.Utils.dataViewToString(data) : data; -}; - -ISOBox.prototype._parseBox = function() { - this._parsing = true; - this._cursor.offset = this._offset; - - // return immediately if there are not enough bytes to read the header - if (this._offset + 8 > this._raw.buffer.byteLength) { - this._root._incomplete = true; - return; - } - - this._procField('size', 'uint', 32); - this._procField('type', 'string', 4); - - if (this.size === 1) { this._procField('largesize', 'uint', 64); } - if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); } - - switch(this.size) { - case 0: - this._raw = new DataView(this._raw.buffer, this._offset, (this._raw.byteLength - this._cursor.offset + 8)); - break; - case 1: - if (this._offset + this.size > this._raw.buffer.byteLength) { - this._incomplete = true; - this._root._incomplete = true; - } else { - this._raw = new DataView(this._raw.buffer, this._offset, this.largesize); - } - break; - default: - if (this._offset + this.size > this._raw.buffer.byteLength) { - this._incomplete = true; - this._root._incomplete = true; - } else { - this._raw = new DataView(this._raw.buffer, this._offset, this.size); - } - } - - // additional parsing - if (!this._incomplete) { - if (this._boxProcessors[this.type]) { - this._boxProcessors[this.type].call(this); - } - if (this._boxContainers.indexOf(this.type) !== -1) { - this._parseContainerBox(); - } else{ - // Unknown box => read and store box content - this._data = this._readData(); - } - } -}; - -ISOBox.prototype._parseFullBox = function() { - this.version = this._readUint(8); - this.flags = this._readUint(24); -}; - -ISOBox.prototype._parseContainerBox = function() { - this.boxes = []; - while (this._cursor.offset - this._raw.byteOffset < this._raw.byteLength) { - this.boxes.push(ISOBox.parse(this)); - } -}; - -/////////////////////////////////////////////////////////////////////////////////////////////////// -// Write functions - -ISOBox.prototype.append = function(box, pos) { - ISOBoxer.Utils.appendBox(this, box, pos); -}; - -ISOBox.prototype.getLength = function() { - this._parsing = false; - this._rawo = null; - - this.size = 0; - this._procField('size', 'uint', 32); - this._procField('type', 'string', 4); - - if (this.size === 1) { this._procField('largesize', 'uint', 64); } - if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); } - - if (this._boxProcessors[this.type]) { - this._boxProcessors[this.type].call(this); - } - - if (this._boxContainers.indexOf(this.type) !== -1) { - for (var i = 0; i < this.boxes.length; i++) { - this.size += this.boxes[i].getLength(); - } - } - - if (this._data) { - this._writeData(this._data); - } - - return this.size; -}; - -ISOBox.prototype.write = function() { - this._parsing = false; - this._cursor.offset = this._parent._cursor.offset; - - switch(this.size) { - case 0: - this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, (this.parent._rawo.byteLength - this._cursor.offset)); - break; - case 1: - this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, this.largesize); - break; - default: - this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, this.size); - } - - this._procField('size', 'uint', 32); - this._procField('type', 'string', 4); - - if (this.size === 1) { this._procField('largesize', 'uint', 64); } - if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); } - - if (this._boxProcessors[this.type]) { - this._boxProcessors[this.type].call(this); - } - - if (this._boxContainers.indexOf(this.type) !== -1) { - for (var i = 0; i < this.boxes.length; i++) { - this.boxes[i].write(); - } - } - - if (this._data) { - this._writeData(this._data); - } - - this._parent._cursor.offset += this.size; - - return this.size; -}; - -ISOBox.prototype._writeInt = function(size, value) { - if (this._rawo) { - var offset = this._cursor.offset - this._rawo.byteOffset; - switch(size) { - case 8: - this._rawo.setInt8(offset, value); - break; - case 16: - this._rawo.setInt16(offset, value); - break; - case 32: - this._rawo.setInt32(offset, value); - break; - case 64: - // Warning: JavaScript cannot handle 64-bit integers natively. - // This will give unexpected results for integers >= 2^53 - var s1 = Math.floor(value / Math.pow(2,32)); - var s2 = value - (s1 * Math.pow(2,32)); - this._rawo.setUint32(offset, s1); - this._rawo.setUint32(offset + 4, s2); - break; - } - this._cursor.offset += (size >> 3); - } else { - this.size += (size >> 3); - } -}; - -ISOBox.prototype._writeUint = function(size, value) { - - if (this._rawo) { - var offset = this._cursor.offset - this._rawo.byteOffset, - s1, s2; - switch(size) { - case 8: - this._rawo.setUint8(offset, value); - break; - case 16: - this._rawo.setUint16(offset, value); - break; - case 24: - s1 = (value & 0xFFFF00) >> 8; - s2 = (value & 0x0000FF); - this._rawo.setUint16(offset, s1); - this._rawo.setUint8(offset + 2, s2); - break; - case 32: - this._rawo.setUint32(offset, value); - break; - case 64: - // Warning: JavaScript cannot handle 64-bit integers natively. - // This will give unexpected results for integers >= 2^53 - s1 = Math.floor(value / Math.pow(2,32)); - s2 = value - (s1 * Math.pow(2,32)); - this._rawo.setUint32(offset, s1); - this._rawo.setUint32(offset + 4, s2); - break; - } - this._cursor.offset += (size >> 3); - } else { - this.size += (size >> 3); - } -}; - -ISOBox.prototype._writeString = function(size, str) { - for (var c = 0; c < size; c++) { - this._writeUint(8, str.charCodeAt(c)); - } -}; - -ISOBox.prototype._writeTerminatedString = function(str) { - if (str.length === 0) { - return; - } - for (var c = 0; c < str.length; c++) { - this._writeUint(8, str.charCodeAt(c)); - } - this._writeUint(8, 0); -}; - -ISOBox.prototype._writeTemplate = function(size, value) { - var pre = Math.floor(value); - var post = (value - pre) * Math.pow(2, size / 2); - this._writeUint(size / 2, pre); - this._writeUint(size / 2, post); -}; - -ISOBox.prototype._writeData = function(data) { - var i; - //data to copy - if (data) { - if (this._rawo) { - //Array and Uint8Array has also to be managed - if (data instanceof Array) { - var offset = this._cursor.offset - this._rawo.byteOffset; - for (var i = 0; i < data.length; i++) { - this._rawo.setInt8(offset + i, data[i]); - } - this._cursor.offset += data.length; - } - - if (data instanceof Uint8Array) { - this._root.bytes.set(data, this._cursor.offset); - this._cursor.offset += data.length; - } - - } else { - //nothing to copy only size to compute - this.size += data.length; - } - } -}; - -ISOBox.prototype._writeUTF8String = function(string) { - var u = ISOBoxer.Utils.utf8ToByteArray(string); - if (this._rawo) { - var dataView = new DataView(this._rawo.buffer, this._cursor.offset, u.length); - for (var i = 0; i < u.length; i++) { - dataView.setUint8(i, u[i]); - } - } else { - this.size += u.length; - } -}; - -ISOBox.prototype._writeField = function(type, size, value) { - switch (type) { - case 'uint': - this._writeUint(size, value); - break; - case 'int': - this._writeInt(size, value); - break; - case 'template': - this._writeTemplate(size, value); - break; - case 'string': - if (size == -1) { - this._writeTerminatedString(value); - } else { - this._writeString(size, value); - } - break; - case 'data': - this._writeData(value); - break; - case 'utf8': - this._writeUTF8String(value); - break; - default: - break; - } -}; - -// ISO/IEC 14496-15:2014 - avc1 box -ISOBox.prototype._boxProcessors['avc1'] = ISOBox.prototype._boxProcessors['encv'] = function() { - // SampleEntry fields - this._procFieldArray('reserved1', 6, 'uint', 8); - this._procField('data_reference_index', 'uint', 16); - // VisualSampleEntry fields - this._procField('pre_defined1', 'uint', 16); - this._procField('reserved2', 'uint', 16); - this._procFieldArray('pre_defined2', 3, 'uint', 32); - this._procField('width', 'uint', 16); - this._procField('height', 'uint', 16); - this._procField('horizresolution', 'template', 32); - this._procField('vertresolution', 'template', 32); - this._procField('reserved3', 'uint', 32); - this._procField('frame_count', 'uint', 16); - this._procFieldArray('compressorname', 32,'uint', 8); - this._procField('depth', 'uint', 16); - this._procField('pre_defined3', 'int', 16); - // AVCSampleEntry fields - this._procField('config', 'data', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.7.2 Data Reference Box -ISOBox.prototype._boxProcessors['dref'] = function() { - this._procFullBox(); - this._procField('entry_count', 'uint', 32); - this._procSubBoxes('entries', this.entry_count); -}; - -// ISO/IEC 14496-12:2012 - 8.6.6 Edit List Box -ISOBox.prototype._boxProcessors['elst'] = function() { - this._procFullBox(); - this._procField('entry_count', 'uint', 32); - this._procEntries('entries', this.entry_count, function(entry) { - this._procEntryField(entry, 'segment_duration', 'uint', (this.version === 1) ? 64 : 32); - this._procEntryField(entry, 'media_time', 'int', (this.version === 1) ? 64 : 32); - this._procEntryField(entry, 'media_rate_integer', 'int', 16); - this._procEntryField(entry, 'media_rate_fraction', 'int', 16); - }); -}; - -// ISO/IEC 23009-1:2014 - 5.10.3.3 Event Message Box -ISOBox.prototype._boxProcessors['emsg'] = function() { - this._procFullBox(); - this._procField('scheme_id_uri', 'string', -1); - this._procField('value', 'string', -1); - this._procField('timescale', 'uint', 32); - this._procField('presentation_time_delta', 'uint', 32); - this._procField('event_duration', 'uint', 32); - this._procField('id', 'uint', 32); - this._procField('message_data', 'data', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.1.2 Free Space Box -ISOBox.prototype._boxProcessors['free'] = ISOBox.prototype._boxProcessors['skip'] = function() { - this._procField('data', 'data', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.12.2 Original Format Box -ISOBox.prototype._boxProcessors['frma'] = function() { - this._procField('data_format', 'uint', 32); -}; -// ISO/IEC 14496-12:2012 - 4.3 File Type Box / 8.16.2 Segment Type Box -ISOBox.prototype._boxProcessors['ftyp'] = -ISOBox.prototype._boxProcessors['styp'] = function() { - this._procField('major_brand', 'string', 4); - this._procField('minor_version', 'uint', 32); - var nbCompatibleBrands = -1; - if (this._parsing) { - nbCompatibleBrands = (this._raw.byteLength - (this._cursor.offset - this._raw.byteOffset)) / 4; - } - this._procFieldArray('compatible_brands', nbCompatibleBrands, 'string', 4); -}; - -// ISO/IEC 14496-12:2012 - 8.4.3 Handler Reference Box -ISOBox.prototype._boxProcessors['hdlr'] = function() { - this._procFullBox(); - this._procField('pre_defined', 'uint', 32); - this._procField('handler_type', 'string', 4); - this._procFieldArray('reserved', 3, 'uint', 32); - this._procField('name', 'string', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.1.1 Media Data Box -ISOBox.prototype._boxProcessors['mdat'] = function() { - this._procField('data', 'data', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.4.2 Media Header Box -ISOBox.prototype._boxProcessors['mdhd'] = function() { - this._procFullBox(); - this._procField('creation_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('modification_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('timescale', 'uint', 32); - this._procField('duration', 'uint', (this.version == 1) ? 64 : 32); - if (!this._parsing && typeof this.language === 'string') { - // In case of writing and language has been set as a string, then convert it into char codes array - this.language = ((this.language.charCodeAt(0) - 0x60) << 10) | - ((this.language.charCodeAt(1) - 0x60) << 5) | - ((this.language.charCodeAt(2) - 0x60)); - } - this._procField('language', 'uint', 16); - if (this._parsing) { - this.language = String.fromCharCode(((this.language >> 10) & 0x1F) + 0x60, - ((this.language >> 5) & 0x1F) + 0x60, - (this.language & 0x1F) + 0x60); - } - this._procField('pre_defined', 'uint', 16); -}; - -// ISO/IEC 14496-12:2012 - 8.8.2 Movie Extends Header Box -ISOBox.prototype._boxProcessors['mehd'] = function() { - this._procFullBox(); - this._procField('fragment_duration', 'uint', (this.version == 1) ? 64 : 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.5 Movie Fragment Header Box -ISOBox.prototype._boxProcessors['mfhd'] = function() { - this._procFullBox(); - this._procField('sequence_number', 'uint', 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.11 Movie Fragment Random Access Box -ISOBox.prototype._boxProcessors['mfro'] = function() { - this._procFullBox(); - this._procField('mfra_size', 'uint', 32); // Called mfra_size to distinguish from the normal "size" attribute of a box -}; - - -// ISO/IEC 14496-12:2012 - 8.5.2.2 mp4a box (use AudioSampleEntry definition and naming) -ISOBox.prototype._boxProcessors['mp4a'] = ISOBox.prototype._boxProcessors['enca'] = function() { - // SampleEntry fields - this._procFieldArray('reserved1', 6, 'uint', 8); - this._procField('data_reference_index', 'uint', 16); - // AudioSampleEntry fields - this._procFieldArray('reserved2', 2, 'uint', 32); - this._procField('channelcount', 'uint', 16); - this._procField('samplesize', 'uint', 16); - this._procField('pre_defined', 'uint', 16); - this._procField('reserved3', 'uint', 16); - this._procField('samplerate', 'template', 32); - // ESDescriptor fields - this._procField('esds', 'data', -1); -}; - -// ISO/IEC 14496-12:2012 - 8.2.2 Movie Header Box -ISOBox.prototype._boxProcessors['mvhd'] = function() { - this._procFullBox(); - this._procField('creation_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('modification_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('timescale', 'uint', 32); - this._procField('duration', 'uint', (this.version == 1) ? 64 : 32); - this._procField('rate', 'template', 32); - this._procField('volume', 'template', 16); - this._procField('reserved1', 'uint', 16); - this._procFieldArray('reserved2', 2, 'uint', 32); - this._procFieldArray('matrix', 9, 'template', 32); - this._procFieldArray('pre_defined', 6,'uint', 32); - this._procField('next_track_ID', 'uint', 32); -}; - -// ISO/IEC 14496-30:2014 - WebVTT Cue Payload Box. -ISOBox.prototype._boxProcessors['payl'] = function() { - this._procField('cue_text', 'utf8'); -}; - -//ISO/IEC 23001-7:2011 - 8.1 Protection System Specific Header Box -ISOBox.prototype._boxProcessors['pssh'] = function() { - this._procFullBox(); - - this._procFieldArray('SystemID', 16, 'uint', 8); - this._procField('DataSize', 'uint', 32); - this._procFieldArray('Data', this.DataSize, 'uint', 8); -}; -// ISO/IEC 14496-12:2012 - 8.12.5 Scheme Type Box -ISOBox.prototype._boxProcessors['schm'] = function() { - this._procFullBox(); - - this._procField('scheme_type', 'uint', 32); - this._procField('scheme_version', 'uint', 32); - - if (this.flags & 0x000001) { - this._procField('scheme_uri', 'string', -1); - } -}; -// ISO/IEC 14496-12:2012 - 8.6.4.1 sdtp box -ISOBox.prototype._boxProcessors['sdtp'] = function() { - this._procFullBox(); - - var sample_count = -1; - if (this._parsing) { - sample_count = (this._raw.byteLength - (this._cursor.offset - this._raw.byteOffset)); - } - - this._procFieldArray('sample_dependency_table', sample_count, 'uint', 8); -}; - -// ISO/IEC 14496-12:2012 - 8.16.3 Segment Index Box -ISOBox.prototype._boxProcessors['sidx'] = function() { - this._procFullBox(); - this._procField('reference_ID', 'uint', 32); - this._procField('timescale', 'uint', 32); - this._procField('earliest_presentation_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('first_offset', 'uint', (this.version == 1) ? 64 : 32); - this._procField('reserved', 'uint', 16); - this._procField('reference_count', 'uint', 16); - this._procEntries('references', this.reference_count, function(entry) { - if (!this._parsing) { - entry.reference = (entry.reference_type & 0x00000001) << 31; - entry.reference |= (entry.referenced_size & 0x7FFFFFFF); - entry.sap = (entry.starts_with_SAP & 0x00000001) << 31; - entry.sap |= (entry.SAP_type & 0x00000003) << 28; - entry.sap |= (entry.SAP_delta_time & 0x0FFFFFFF); - } - this._procEntryField(entry, 'reference', 'uint', 32); - this._procEntryField(entry, 'subsegment_duration', 'uint', 32); - this._procEntryField(entry, 'sap', 'uint', 32); - if (this._parsing) { - entry.reference_type = (entry.reference >> 31) & 0x00000001; - entry.referenced_size = entry.reference & 0x7FFFFFFF; - entry.starts_with_SAP = (entry.sap >> 31) & 0x00000001; - entry.SAP_type = (entry.sap >> 28) & 0x00000007; - entry.SAP_delta_time = (entry.sap & 0x0FFFFFFF); - } - }); -}; - -// ISO/IEC 14496-12:2012 - 8.4.5.3 Sound Media Header Box -ISOBox.prototype._boxProcessors['smhd'] = function() { - this._procFullBox(); - this._procField('balance', 'uint', 16); - this._procField('reserved', 'uint', 16); -}; - -// ISO/IEC 14496-12:2012 - 8.16.4 Subsegment Index Box -ISOBox.prototype._boxProcessors['ssix'] = function() { - this._procFullBox(); - this._procField('subsegment_count', 'uint', 32); - this._procEntries('subsegments', this.subsegment_count, function(subsegment) { - this._procEntryField(subsegment, 'ranges_count', 'uint', 32); - this._procSubEntries(subsegment, 'ranges', subsegment.ranges_count, function(range) { - this._procEntryField(range, 'level', 'uint', 8); - this._procEntryField(range, 'range_size', 'uint', 24); - }); - }); -}; - -// ISO/IEC 14496-12:2012 - 8.5.2 Sample Description Box -ISOBox.prototype._boxProcessors['stsd'] = function() { - this._procFullBox(); - this._procField('entry_count', 'uint', 32); - this._procSubBoxes('entries', this.entry_count); -}; - -// ISO/IEC 14496-12:2015 - 8.7.7 Sub-Sample Information Box -ISOBox.prototype._boxProcessors['subs'] = function () { - this._procFullBox(); - this._procField('entry_count', 'uint', 32); - this._procEntries('entries', this.entry_count, function(entry) { - this._procEntryField(entry, 'sample_delta', 'uint', 32); - this._procEntryField(entry, 'subsample_count', 'uint', 16); - this._procSubEntries(entry, 'subsamples', entry.subsample_count, function(subsample) { - this._procEntryField(subsample, 'subsample_size', 'uint', (this.version === 1) ? 32 : 16); - this._procEntryField(subsample, 'subsample_priority', 'uint', 8); - this._procEntryField(subsample, 'discardable', 'uint', 8); - this._procEntryField(subsample, 'codec_specific_parameters', 'uint', 32); - }); - }); -}; - -//ISO/IEC 23001-7:2011 - 8.2 Track Encryption Box -ISOBox.prototype._boxProcessors['tenc'] = function() { - this._procFullBox(); - - this._procField('default_IsEncrypted', 'uint', 24); - this._procField('default_IV_size', 'uint', 8); - this._procFieldArray('default_KID', 16, 'uint', 8); - }; - -// ISO/IEC 14496-12:2012 - 8.8.12 Track Fragmnent Decode Time -ISOBox.prototype._boxProcessors['tfdt'] = function() { - this._procFullBox(); - this._procField('baseMediaDecodeTime', 'uint', (this.version == 1) ? 64 : 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.7 Track Fragment Header Box -ISOBox.prototype._boxProcessors['tfhd'] = function() { - this._procFullBox(); - this._procField('track_ID', 'uint', 32); - if (this.flags & 0x01) this._procField('base_data_offset', 'uint', 64); - if (this.flags & 0x02) this._procField('sample_description_offset', 'uint', 32); - if (this.flags & 0x08) this._procField('default_sample_duration', 'uint', 32); - if (this.flags & 0x10) this._procField('default_sample_size', 'uint', 32); - if (this.flags & 0x20) this._procField('default_sample_flags', 'uint', 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.10 Track Fragment Random Access Box -ISOBox.prototype._boxProcessors['tfra'] = function() { - this._procFullBox(); - this._procField('track_ID', 'uint', 32); - if (!this._parsing) { - this.reserved = 0; - this.reserved |= (this.length_size_of_traf_num & 0x00000030) << 4; - this.reserved |= (this.length_size_of_trun_num & 0x0000000C) << 2; - this.reserved |= (this.length_size_of_sample_num & 0x00000003); - } - this._procField('reserved', 'uint', 32); - if (this._parsing) { - this.length_size_of_traf_num = (this.reserved & 0x00000030) >> 4; - this.length_size_of_trun_num = (this.reserved & 0x0000000C) >> 2; - this.length_size_of_sample_num = (this.reserved & 0x00000003); - } - this._procField('number_of_entry', 'uint', 32); - this._procEntries('entries', this.number_of_entry, function(entry) { - this._procEntryField(entry, 'time', 'uint', (this.version === 1) ? 64 : 32); - this._procEntryField(entry, 'moof_offset', 'uint', (this.version === 1) ? 64 : 32); - this._procEntryField(entry, 'traf_number', 'uint', (this.length_size_of_traf_num + 1) * 8); - this._procEntryField(entry, 'trun_number', 'uint', (this.length_size_of_trun_num + 1) * 8); - this._procEntryField(entry, 'sample_number', 'uint', (this.length_size_of_sample_num + 1) * 8); - }); -}; - -// ISO/IEC 14496-12:2012 - 8.3.2 Track Header Box -ISOBox.prototype._boxProcessors['tkhd'] = function() { - this._procFullBox(); - this._procField('creation_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('modification_time', 'uint', (this.version == 1) ? 64 : 32); - this._procField('track_ID', 'uint', 32); - this._procField('reserved1', 'uint', 32); - this._procField('duration', 'uint', (this.version == 1) ? 64 : 32); - this._procFieldArray('reserved2', 2, 'uint', 32); - this._procField('layer', 'uint', 16); - this._procField('alternate_group', 'uint', 16); - this._procField('volume', 'template', 16); - this._procField('reserved3', 'uint', 16); - this._procFieldArray('matrix', 9, 'template', 32); - this._procField('width', 'template', 32); - this._procField('height', 'template', 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.3 Track Extends Box -ISOBox.prototype._boxProcessors['trex'] = function() { - this._procFullBox(); - this._procField('track_ID', 'uint', 32); - this._procField('default_sample_description_index', 'uint', 32); - this._procField('default_sample_duration', 'uint', 32); - this._procField('default_sample_size', 'uint', 32); - this._procField('default_sample_flags', 'uint', 32); -}; - -// ISO/IEC 14496-12:2012 - 8.8.8 Track Run Box -// Note: the 'trun' box has a direct relation to the 'tfhd' box for defaults. -// These defaults are not set explicitly here, but are left to resolve for the user. -ISOBox.prototype._boxProcessors['trun'] = function() { - this._procFullBox(); - this._procField('sample_count', 'uint', 32); - if (this.flags & 0x1) this._procField('data_offset', 'int', 32); - if (this.flags & 0x4) this._procField('first_sample_flags', 'uint', 32); - this._procEntries('samples', this.sample_count, function(sample) { - if (this.flags & 0x100) this._procEntryField(sample, 'sample_duration', 'uint', 32); - if (this.flags & 0x200) this._procEntryField(sample, 'sample_size', 'uint', 32); - if (this.flags & 0x400) this._procEntryField(sample, 'sample_flags', 'uint', 32); - if (this.flags & 0x800) this._procEntryField(sample, 'sample_composition_time_offset', (this.version === 1) ? 'int' : 'uint', 32); - }); -}; - -// ISO/IEC 14496-12:2012 - 8.7.2 Data Reference Box -ISOBox.prototype._boxProcessors['url '] = ISOBox.prototype._boxProcessors['urn '] = function() { - this._procFullBox(); - if (this.type === 'urn ') { - this._procField('name', 'string', -1); - } - this._procField('location', 'string', -1); -}; - -// ISO/IEC 14496-30:2014 - WebVTT Source Label Box -ISOBox.prototype._boxProcessors['vlab'] = function() { - this._procField('source_label', 'utf8'); -}; - -// ISO/IEC 14496-12:2012 - 8.4.5.2 Video Media Header Box -ISOBox.prototype._boxProcessors['vmhd'] = function() { - this._procFullBox(); - this._procField('graphicsmode', 'uint', 16); - this._procFieldArray('opcolor', 3, 'uint', 16); -}; - -// ISO/IEC 14496-30:2014 - WebVTT Configuration Box -ISOBox.prototype._boxProcessors['vttC'] = function() { - this._procField('config', 'utf8'); -}; - -// ISO/IEC 14496-30:2014 - WebVTT Empty Sample Box -ISOBox.prototype._boxProcessors['vtte'] = function() { - // Nothing should happen here. -}; - -},{}],6:[function(_dereq_,module,exports){ -'use strict'; - -var isArray = Array.isArray; -var keyList = Object.keys; -var hasProp = Object.prototype.hasOwnProperty; - -module.exports = function equal(a, b) { - if (a === b) return true; - - var arrA = isArray(a) - , arrB = isArray(b) - , i - , length - , key; - - if (arrA && arrB) { - length = a.length; - if (length != b.length) return false; - for (i = 0; i < length; i++) - if (!equal(a[i], b[i])) return false; - return true; - } - - if (arrA != arrB) return false; - - var dateA = a instanceof Date - , dateB = b instanceof Date; - if (dateA != dateB) return false; - if (dateA && dateB) return a.getTime() == b.getTime(); - - var regexpA = a instanceof RegExp - , regexpB = b instanceof RegExp; - if (regexpA != regexpB) return false; - if (regexpA && regexpB) return a.toString() == b.toString(); - - if (a instanceof Object && b instanceof Object) { - var keys = keyList(a); - length = keys.length; - - if (length !== keyList(b).length) - return false; - - for (i = 0; i < length; i++) - if (!hasProp.call(b, keys[i])) return false; - - for (i = 0; i < length; i++) { - key = keys[i]; - if (!equal(a[key], b[key])) return false; - } - - return true; - } - - return false; -}; - -},{}],7:[function(_dereq_,module,exports){ -var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; - -;(function (exports) { - 'use strict'; - - var Arr = (typeof Uint8Array !== 'undefined') - ? Uint8Array - : Array - - var PLUS = '+'.charCodeAt(0) - var SLASH = '/'.charCodeAt(0) - var NUMBER = '0'.charCodeAt(0) - var LOWER = 'a'.charCodeAt(0) - var UPPER = 'A'.charCodeAt(0) - var PLUS_URL_SAFE = '-'.charCodeAt(0) - var SLASH_URL_SAFE = '_'.charCodeAt(0) - - function decode (elt) { - var code = elt.charCodeAt(0) - if (code === PLUS || - code === PLUS_URL_SAFE) - return 62 // '+' - if (code === SLASH || - code === SLASH_URL_SAFE) - return 63 // '/' - if (code < NUMBER) - return -1 //no match - if (code < NUMBER + 10) - return code - NUMBER + 26 + 26 - if (code < UPPER + 26) - return code - UPPER - if (code < LOWER + 26) - return code - LOWER + 26 - } - - function b64ToByteArray (b64) { - var i, j, l, tmp, placeHolders, arr - - if (b64.length % 4 > 0) { - throw new Error('Invalid string. Length must be a multiple of 4') - } - - // the number of equal signs (place holders) - // if there are two placeholders, than the two characters before it - // represent one byte - // if there is only one, then the three characters before it represent 2 bytes - // this is just a cheap hack to not do indexOf twice - var len = b64.length - placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0 - - // base64 is 4/3 + up to two characters of the original data - arr = new Arr(b64.length * 3 / 4 - placeHolders) - - // if there are placeholders, only get up to the last complete 4 chars - l = placeHolders > 0 ? b64.length - 4 : b64.length - - var L = 0 - - function push (v) { - arr[L++] = v - } - - for (i = 0, j = 0; i < l; i += 4, j += 3) { - tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3)) - push((tmp & 0xFF0000) >> 16) - push((tmp & 0xFF00) >> 8) - push(tmp & 0xFF) - } - - if (placeHolders === 2) { - tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4) - push(tmp & 0xFF) - } else if (placeHolders === 1) { - tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2) - push((tmp >> 8) & 0xFF) - push(tmp & 0xFF) - } - - return arr - } - - function uint8ToBase64 (uint8) { - var i, - extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes - output = "", - temp, length - - function encode (num) { - return lookup.charAt(num) - } - - function tripletToBase64 (num) { - return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F) - } - - // go through the array every three bytes, we'll deal with trailing stuff later - for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) { - temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) - output += tripletToBase64(temp) - } - - // pad the end with zeros, but make sure to not forget the extra bytes - switch (extraBytes) { - case 1: - temp = uint8[uint8.length - 1] - output += encode(temp >> 2) - output += encode((temp << 4) & 0x3F) - output += '==' - break - case 2: - temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]) - output += encode(temp >> 10) - output += encode((temp >> 4) & 0x3F) - output += encode((temp << 2) & 0x3F) - output += '=' - break - } - - return output - } - - exports.toByteArray = b64ToByteArray - exports.fromByteArray = uint8ToBase64 -}(typeof exports === 'undefined' ? (this.base64js = {}) : exports)) - -},{}],8:[function(_dereq_,module,exports){ - -},{}],9:[function(_dereq_,module,exports){ -(function (global){ -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -/* eslint-disable no-proto */ - -'use strict' - -var base64 = _dereq_(7) -var ieee754 = _dereq_(13) -var isArray = _dereq_(10) - -exports.Buffer = Buffer -exports.SlowBuffer = SlowBuffer -exports.INSPECT_MAX_BYTES = 50 -Buffer.poolSize = 8192 // not used by this implementation - -var rootParent = {} - -/** - * If `Buffer.TYPED_ARRAY_SUPPORT`: - * === true Use Uint8Array implementation (fastest) - * === false Use Object implementation (most compatible, even IE6) - * - * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, - * Opera 11.6+, iOS 4.2+. - * - * Due to various browser bugs, sometimes the Object implementation will be used even - * when the browser supports typed arrays. - * - * Note: - * - * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances, - * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438. - * - * - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property - * on objects. - * - * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function. - * - * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of - * incorrect length in some situations. - - * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they - * get the Object implementation, which is slower but behaves correctly. - */ -Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined - ? global.TYPED_ARRAY_SUPPORT - : typedArraySupport() - -function typedArraySupport () { - function Bar () {} - try { - var arr = new Uint8Array(1) - arr.foo = function () { return 42 } - arr.constructor = Bar - return arr.foo() === 42 && // typed array instances can be augmented - arr.constructor === Bar && // constructor can be set - typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray` - arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray` - } catch (e) { - return false - } -} - -function kMaxLength () { - return Buffer.TYPED_ARRAY_SUPPORT - ? 0x7fffffff - : 0x3fffffff -} - -/** - * Class: Buffer - * ============= - * - * The Buffer constructor returns instances of `Uint8Array` that are augmented - * with function properties for all the node `Buffer` API functions. We use - * `Uint8Array` so that square bracket notation works as expected -- it returns - * a single octet. - * - * By augmenting the instances, we can avoid modifying the `Uint8Array` - * prototype. - */ -function Buffer (arg) { - if (!(this instanceof Buffer)) { - // Avoid going through an ArgumentsAdaptorTrampoline in the common case. - if (arguments.length > 1) return new Buffer(arg, arguments[1]) - return new Buffer(arg) - } - - if (!Buffer.TYPED_ARRAY_SUPPORT) { - this.length = 0 - this.parent = undefined - } - - // Common case. - if (typeof arg === 'number') { - return fromNumber(this, arg) - } - - // Slightly less common case. - if (typeof arg === 'string') { - return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8') - } - - // Unusual. - return fromObject(this, arg) -} - -function fromNumber (that, length) { - that = allocate(that, length < 0 ? 0 : checked(length) | 0) - if (!Buffer.TYPED_ARRAY_SUPPORT) { - for (var i = 0; i < length; i++) { - that[i] = 0 - } - } - return that -} - -function fromString (that, string, encoding) { - if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8' - - // Assumption: byteLength() return value is always < kMaxLength. - var length = byteLength(string, encoding) | 0 - that = allocate(that, length) - - that.write(string, encoding) - return that -} - -function fromObject (that, object) { - if (Buffer.isBuffer(object)) return fromBuffer(that, object) - - if (isArray(object)) return fromArray(that, object) - - if (object == null) { - throw new TypeError('must start with number, buffer, array or string') - } - - if (typeof ArrayBuffer !== 'undefined') { - if (object.buffer instanceof ArrayBuffer) { - return fromTypedArray(that, object) - } - if (object instanceof ArrayBuffer) { - return fromArrayBuffer(that, object) - } - } - - if (object.length) return fromArrayLike(that, object) - - return fromJsonObject(that, object) -} - -function fromBuffer (that, buffer) { - var length = checked(buffer.length) | 0 - that = allocate(that, length) - buffer.copy(that, 0, 0, length) - return that -} - -function fromArray (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -// Duplicate of fromArray() to keep fromArray() monomorphic. -function fromTypedArray (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - // Truncating the elements is probably not what people expect from typed - // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior - // of the old Buffer constructor. - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -function fromArrayBuffer (that, array) { - if (Buffer.TYPED_ARRAY_SUPPORT) { - // Return an augmented `Uint8Array` instance, for best performance - array.byteLength - that = Buffer._augment(new Uint8Array(array)) - } else { - // Fallback: Return an object instance of the Buffer class - that = fromTypedArray(that, new Uint8Array(array)) - } - return that -} - -function fromArrayLike (that, array) { - var length = checked(array.length) | 0 - that = allocate(that, length) - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object. -// Returns a zero-length buffer for inputs that don't conform to the spec. -function fromJsonObject (that, object) { - var array - var length = 0 - - if (object.type === 'Buffer' && isArray(object.data)) { - array = object.data - length = checked(array.length) | 0 - } - that = allocate(that, length) - - for (var i = 0; i < length; i += 1) { - that[i] = array[i] & 255 - } - return that -} - -if (Buffer.TYPED_ARRAY_SUPPORT) { - Buffer.prototype.__proto__ = Uint8Array.prototype - Buffer.__proto__ = Uint8Array -} else { - // pre-set for values that may exist in the future - Buffer.prototype.length = undefined - Buffer.prototype.parent = undefined -} - -function allocate (that, length) { - if (Buffer.TYPED_ARRAY_SUPPORT) { - // Return an augmented `Uint8Array` instance, for best performance - that = Buffer._augment(new Uint8Array(length)) - that.__proto__ = Buffer.prototype - } else { - // Fallback: Return an object instance of the Buffer class - that.length = length - that._isBuffer = true - } - - var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1 - if (fromPool) that.parent = rootParent - - return that -} - -function checked (length) { - // Note: cannot use `length < kMaxLength` here because that fails when - // length is NaN (which is otherwise coerced to zero.) - if (length >= kMaxLength()) { - throw new RangeError('Attempt to allocate Buffer larger than maximum ' + - 'size: 0x' + kMaxLength().toString(16) + ' bytes') - } - return length | 0 -} - -function SlowBuffer (subject, encoding) { - if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding) - - var buf = new Buffer(subject, encoding) - delete buf.parent - return buf -} - -Buffer.isBuffer = function isBuffer (b) { - return !!(b != null && b._isBuffer) -} - -Buffer.compare = function compare (a, b) { - if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { - throw new TypeError('Arguments must be Buffers') - } - - if (a === b) return 0 - - var x = a.length - var y = b.length - - var i = 0 - var len = Math.min(x, y) - while (i < len) { - if (a[i] !== b[i]) break - - ++i - } - - if (i !== len) { - x = a[i] - y = b[i] - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -Buffer.isEncoding = function isEncoding (encoding) { - switch (String(encoding).toLowerCase()) { - case 'hex': - case 'utf8': - case 'utf-8': - case 'ascii': - case 'binary': - case 'base64': - case 'raw': - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return true - default: - return false - } -} - -Buffer.concat = function concat (list, length) { - if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.') - - if (list.length === 0) { - return new Buffer(0) - } - - var i - if (length === undefined) { - length = 0 - for (i = 0; i < list.length; i++) { - length += list[i].length - } - } - - var buf = new Buffer(length) - var pos = 0 - for (i = 0; i < list.length; i++) { - var item = list[i] - item.copy(buf, pos) - pos += item.length - } - return buf -} - -function byteLength (string, encoding) { - if (typeof string !== 'string') string = '' + string - - var len = string.length - if (len === 0) return 0 - - // Use a for loop to avoid recursion - var loweredCase = false - for (;;) { - switch (encoding) { - case 'ascii': - case 'binary': - // Deprecated - case 'raw': - case 'raws': - return len - case 'utf8': - case 'utf-8': - return utf8ToBytes(string).length - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return len * 2 - case 'hex': - return len >>> 1 - case 'base64': - return base64ToBytes(string).length - default: - if (loweredCase) return utf8ToBytes(string).length // assume utf8 - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} -Buffer.byteLength = byteLength - -function slowToString (encoding, start, end) { - var loweredCase = false - - start = start | 0 - end = end === undefined || end === Infinity ? this.length : end | 0 - - if (!encoding) encoding = 'utf8' - if (start < 0) start = 0 - if (end > this.length) end = this.length - if (end <= start) return '' - - while (true) { - switch (encoding) { - case 'hex': - return hexSlice(this, start, end) - - case 'utf8': - case 'utf-8': - return utf8Slice(this, start, end) - - case 'ascii': - return asciiSlice(this, start, end) - - case 'binary': - return binarySlice(this, start, end) - - case 'base64': - return base64Slice(this, start, end) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return utf16leSlice(this, start, end) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = (encoding + '').toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toString = function toString () { - var length = this.length | 0 - if (length === 0) return '' - if (arguments.length === 0) return utf8Slice(this, 0, length) - return slowToString.apply(this, arguments) -} - -Buffer.prototype.equals = function equals (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return true - return Buffer.compare(this, b) === 0 -} - -Buffer.prototype.inspect = function inspect () { - var str = '' - var max = exports.INSPECT_MAX_BYTES - if (this.length > 0) { - str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') - if (this.length > max) str += ' ... ' - } - return '' -} - -Buffer.prototype.compare = function compare (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return 0 - return Buffer.compare(this, b) -} - -Buffer.prototype.indexOf = function indexOf (val, byteOffset) { - if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff - else if (byteOffset < -0x80000000) byteOffset = -0x80000000 - byteOffset >>= 0 - - if (this.length === 0) return -1 - if (byteOffset >= this.length) return -1 - - // Negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0) - - if (typeof val === 'string') { - if (val.length === 0) return -1 // special case: looking for empty string always fails - return String.prototype.indexOf.call(this, val, byteOffset) - } - if (Buffer.isBuffer(val)) { - return arrayIndexOf(this, val, byteOffset) - } - if (typeof val === 'number') { - if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') { - return Uint8Array.prototype.indexOf.call(this, val, byteOffset) - } - return arrayIndexOf(this, [ val ], byteOffset) - } - - function arrayIndexOf (arr, val, byteOffset) { - var foundIndex = -1 - for (var i = 0; byteOffset + i < arr.length; i++) { - if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex - } else { - foundIndex = -1 - } - } - return -1 - } - - throw new TypeError('val must be string, number or Buffer') -} - -// `get` is deprecated -Buffer.prototype.get = function get (offset) { - console.log('.get() is deprecated. Access using array indexes instead.') - return this.readUInt8(offset) -} - -// `set` is deprecated -Buffer.prototype.set = function set (v, offset) { - console.log('.set() is deprecated. Access using array indexes instead.') - return this.writeUInt8(v, offset) -} - -function hexWrite (buf, string, offset, length) { - offset = Number(offset) || 0 - var remaining = buf.length - offset - if (!length) { - length = remaining - } else { - length = Number(length) - if (length > remaining) { - length = remaining - } - } - - // must be an even number of digits - var strLen = string.length - if (strLen % 2 !== 0) throw new Error('Invalid hex string') - - if (length > strLen / 2) { - length = strLen / 2 - } - for (var i = 0; i < length; i++) { - var parsed = parseInt(string.substr(i * 2, 2), 16) - if (isNaN(parsed)) throw new Error('Invalid hex string') - buf[offset + i] = parsed - } - return i -} - -function utf8Write (buf, string, offset, length) { - return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) -} - -function asciiWrite (buf, string, offset, length) { - return blitBuffer(asciiToBytes(string), buf, offset, length) -} - -function binaryWrite (buf, string, offset, length) { - return asciiWrite(buf, string, offset, length) -} - -function base64Write (buf, string, offset, length) { - return blitBuffer(base64ToBytes(string), buf, offset, length) -} - -function ucs2Write (buf, string, offset, length) { - return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) -} - -Buffer.prototype.write = function write (string, offset, length, encoding) { - // Buffer#write(string) - if (offset === undefined) { - encoding = 'utf8' - length = this.length - offset = 0 - // Buffer#write(string, encoding) - } else if (length === undefined && typeof offset === 'string') { - encoding = offset - length = this.length - offset = 0 - // Buffer#write(string, offset[, length][, encoding]) - } else if (isFinite(offset)) { - offset = offset | 0 - if (isFinite(length)) { - length = length | 0 - if (encoding === undefined) encoding = 'utf8' - } else { - encoding = length - length = undefined - } - // legacy write(string, encoding, offset, length) - remove in v0.13 - } else { - var swap = encoding - encoding = offset - offset = length | 0 - length = swap - } - - var remaining = this.length - offset - if (length === undefined || length > remaining) length = remaining - - if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { - throw new RangeError('attempt to write outside buffer bounds') - } - - if (!encoding) encoding = 'utf8' - - var loweredCase = false - for (;;) { - switch (encoding) { - case 'hex': - return hexWrite(this, string, offset, length) - - case 'utf8': - case 'utf-8': - return utf8Write(this, string, offset, length) - - case 'ascii': - return asciiWrite(this, string, offset, length) - - case 'binary': - return binaryWrite(this, string, offset, length) - - case 'base64': - // Warning: maxLength not taken into account in base64Write - return base64Write(this, string, offset, length) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return ucs2Write(this, string, offset, length) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toJSON = function toJSON () { - return { - type: 'Buffer', - data: Array.prototype.slice.call(this._arr || this, 0) - } -} - -function base64Slice (buf, start, end) { - if (start === 0 && end === buf.length) { - return base64.fromByteArray(buf) - } else { - return base64.fromByteArray(buf.slice(start, end)) - } -} - -function utf8Slice (buf, start, end) { - end = Math.min(buf.length, end) - var res = [] - - var i = start - while (i < end) { - var firstByte = buf[i] - var codePoint = null - var bytesPerSequence = (firstByte > 0xEF) ? 4 - : (firstByte > 0xDF) ? 3 - : (firstByte > 0xBF) ? 2 - : 1 - - if (i + bytesPerSequence <= end) { - var secondByte, thirdByte, fourthByte, tempCodePoint - - switch (bytesPerSequence) { - case 1: - if (firstByte < 0x80) { - codePoint = firstByte - } - break - case 2: - secondByte = buf[i + 1] - if ((secondByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) - if (tempCodePoint > 0x7F) { - codePoint = tempCodePoint - } - } - break - case 3: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) - if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { - codePoint = tempCodePoint - } - } - break - case 4: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - fourthByte = buf[i + 3] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) - if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { - codePoint = tempCodePoint - } - } - } - } - - if (codePoint === null) { - // we did not generate a valid codePoint so insert a - // replacement char (U+FFFD) and advance only 1 byte - codePoint = 0xFFFD - bytesPerSequence = 1 - } else if (codePoint > 0xFFFF) { - // encode to utf16 (surrogate pair dance) - codePoint -= 0x10000 - res.push(codePoint >>> 10 & 0x3FF | 0xD800) - codePoint = 0xDC00 | codePoint & 0x3FF - } - - res.push(codePoint) - i += bytesPerSequence - } - - return decodeCodePointsArray(res) -} - -// Based on http://stackoverflow.com/a/22747272/680742, the browser with -// the lowest limit is Chrome, with 0x10000 args. -// We go 1 magnitude less, for safety -var MAX_ARGUMENTS_LENGTH = 0x1000 - -function decodeCodePointsArray (codePoints) { - var len = codePoints.length - if (len <= MAX_ARGUMENTS_LENGTH) { - return String.fromCharCode.apply(String, codePoints) // avoid extra slice() - } - - // Decode in chunks to avoid "call stack size exceeded". - var res = '' - var i = 0 - while (i < len) { - res += String.fromCharCode.apply( - String, - codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) - ) - } - return res -} - -function asciiSlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; i++) { - ret += String.fromCharCode(buf[i] & 0x7F) - } - return ret -} - -function binarySlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; i++) { - ret += String.fromCharCode(buf[i]) - } - return ret -} - -function hexSlice (buf, start, end) { - var len = buf.length - - if (!start || start < 0) start = 0 - if (!end || end < 0 || end > len) end = len - - var out = '' - for (var i = start; i < end; i++) { - out += toHex(buf[i]) - } - return out -} - -function utf16leSlice (buf, start, end) { - var bytes = buf.slice(start, end) - var res = '' - for (var i = 0; i < bytes.length; i += 2) { - res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256) - } - return res -} - -Buffer.prototype.slice = function slice (start, end) { - var len = this.length - start = ~~start - end = end === undefined ? len : ~~end - - if (start < 0) { - start += len - if (start < 0) start = 0 - } else if (start > len) { - start = len - } - - if (end < 0) { - end += len - if (end < 0) end = 0 - } else if (end > len) { - end = len - } - - if (end < start) end = start - - var newBuf - if (Buffer.TYPED_ARRAY_SUPPORT) { - newBuf = Buffer._augment(this.subarray(start, end)) - } else { - var sliceLen = end - start - newBuf = new Buffer(sliceLen, undefined) - for (var i = 0; i < sliceLen; i++) { - newBuf[i] = this[i + start] - } - } - - if (newBuf.length) newBuf.parent = this.parent || this - - return newBuf -} - -/* - * Need to make sure that buffer isn't trying to write out of bounds. - */ -function checkOffset (offset, ext, length) { - if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') - if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') -} - -Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - - return val -} - -Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) { - checkOffset(offset, byteLength, this.length) - } - - var val = this[offset + --byteLength] - var mul = 1 - while (byteLength > 0 && (mul *= 0x100)) { - val += this[offset + --byteLength] * mul - } - - return val -} - -Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { - if (!noAssert) checkOffset(offset, 1, this.length) - return this[offset] -} - -Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - return this[offset] | (this[offset + 1] << 8) -} - -Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - return (this[offset] << 8) | this[offset + 1] -} - -Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return ((this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16)) + - (this[offset + 3] * 0x1000000) -} - -Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] * 0x1000000) + - ((this[offset + 1] << 16) | - (this[offset + 2] << 8) | - this[offset + 3]) -} - -Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var i = byteLength - var mul = 1 - var val = this[offset + --i] - while (i > 0 && (mul *= 0x100)) { - val += this[offset + --i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { - if (!noAssert) checkOffset(offset, 1, this.length) - if (!(this[offset] & 0x80)) return (this[offset]) - return ((0xff - this[offset] + 1) * -1) -} - -Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset] | (this[offset + 1] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset + 1] | (this[offset] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16) | - (this[offset + 3] << 24) -} - -Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] << 24) | - (this[offset + 1] << 16) | - (this[offset + 2] << 8) | - (this[offset + 3]) -} - -Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, true, 23, 4) -} - -Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, false, 23, 4) -} - -Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, true, 52, 8) -} - -Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, false, 52, 8) -} - -function checkInt (buf, value, offset, ext, max, min) { - if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance') - if (value > max || value < min) throw new RangeError('value is out of bounds') - if (offset + ext > buf.length) throw new RangeError('index out of range') -} - -Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) - - var mul = 1 - var i = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - byteLength = byteLength | 0 - if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0) - - var i = byteLength - 1 - var mul = 1 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) - if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) - this[offset] = (value & 0xff) - return offset + 1 -} - -function objectWriteUInt16 (buf, value, offset, littleEndian) { - if (value < 0) value = 0xffff + value + 1 - for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) { - buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>> - (littleEndian ? i : 1 - i) * 8 - } -} - -Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - } else { - objectWriteUInt16(this, value, offset, true) - } - return offset + 2 -} - -Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - } else { - objectWriteUInt16(this, value, offset, false) - } - return offset + 2 -} - -function objectWriteUInt32 (buf, value, offset, littleEndian) { - if (value < 0) value = 0xffffffff + value + 1 - for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) { - buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff - } -} - -Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset + 3] = (value >>> 24) - this[offset + 2] = (value >>> 16) - this[offset + 1] = (value >>> 8) - this[offset] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, true) - } - return offset + 4 -} - -Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, false) - } - return offset + 4 -} - -Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) { - var limit = Math.pow(2, 8 * byteLength - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = 0 - var mul = 1 - var sub = value < 0 ? 1 : 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) { - var limit = Math.pow(2, 8 * byteLength - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = byteLength - 1 - var mul = 1 - var sub = value < 0 ? 1 : 0 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) - if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) - if (value < 0) value = 0xff + value + 1 - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - } else { - objectWriteUInt16(this, value, offset, true) - } - return offset + 2 -} - -Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - } else { - objectWriteUInt16(this, value, offset, false) - } - return offset + 2 -} - -Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - this[offset + 2] = (value >>> 16) - this[offset + 3] = (value >>> 24) - } else { - objectWriteUInt32(this, value, offset, true) - } - return offset + 4 -} - -Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { - value = +value - offset = offset | 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (value < 0) value = 0xffffffff + value + 1 - if (Buffer.TYPED_ARRAY_SUPPORT) { - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - } else { - objectWriteUInt32(this, value, offset, false) - } - return offset + 4 -} - -function checkIEEE754 (buf, value, offset, ext, max, min) { - if (value > max || value < min) throw new RangeError('value is out of bounds') - if (offset + ext > buf.length) throw new RangeError('index out of range') - if (offset < 0) throw new RangeError('index out of range') -} - -function writeFloat (buf, value, offset, littleEndian, noAssert) { - if (!noAssert) { - checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) - } - ieee754.write(buf, value, offset, littleEndian, 23, 4) - return offset + 4 -} - -Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { - return writeFloat(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { - return writeFloat(this, value, offset, false, noAssert) -} - -function writeDouble (buf, value, offset, littleEndian, noAssert) { - if (!noAssert) { - checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) - } - ieee754.write(buf, value, offset, littleEndian, 52, 8) - return offset + 8 -} - -Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { - return writeDouble(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { - return writeDouble(this, value, offset, false, noAssert) -} - -// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) -Buffer.prototype.copy = function copy (target, targetStart, start, end) { - if (!start) start = 0 - if (!end && end !== 0) end = this.length - if (targetStart >= target.length) targetStart = target.length - if (!targetStart) targetStart = 0 - if (end > 0 && end < start) end = start - - // Copy 0 bytes; we're done - if (end === start) return 0 - if (target.length === 0 || this.length === 0) return 0 - - // Fatal error conditions - if (targetStart < 0) { - throw new RangeError('targetStart out of bounds') - } - if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') - if (end < 0) throw new RangeError('sourceEnd out of bounds') - - // Are we oob? - if (end > this.length) end = this.length - if (target.length - targetStart < end - start) { - end = target.length - targetStart + start - } - - var len = end - start - var i - - if (this === target && start < targetStart && targetStart < end) { - // descending copy from end - for (i = len - 1; i >= 0; i--) { - target[i + targetStart] = this[i + start] - } - } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) { - // ascending copy from start - for (i = 0; i < len; i++) { - target[i + targetStart] = this[i + start] - } - } else { - target._set(this.subarray(start, start + len), targetStart) - } - - return len -} - -// fill(value, start=0, end=buffer.length) -Buffer.prototype.fill = function fill (value, start, end) { - if (!value) value = 0 - if (!start) start = 0 - if (!end) end = this.length - - if (end < start) throw new RangeError('end < start') - - // Fill 0 bytes; we're done - if (end === start) return - if (this.length === 0) return - - if (start < 0 || start >= this.length) throw new RangeError('start out of bounds') - if (end < 0 || end > this.length) throw new RangeError('end out of bounds') - - var i - if (typeof value === 'number') { - for (i = start; i < end; i++) { - this[i] = value - } - } else { - var bytes = utf8ToBytes(value.toString()) - var len = bytes.length - for (i = start; i < end; i++) { - this[i] = bytes[i % len] - } - } - - return this -} - -/** - * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance. - * Added in Node 0.12. Only available in browsers that support ArrayBuffer. - */ -Buffer.prototype.toArrayBuffer = function toArrayBuffer () { - if (typeof Uint8Array !== 'undefined') { - if (Buffer.TYPED_ARRAY_SUPPORT) { - return (new Buffer(this)).buffer - } else { - var buf = new Uint8Array(this.length) - for (var i = 0, len = buf.length; i < len; i += 1) { - buf[i] = this[i] - } - return buf.buffer - } - } else { - throw new TypeError('Buffer.toArrayBuffer not supported in this browser') - } -} - -// HELPER FUNCTIONS -// ================ - -var BP = Buffer.prototype - -/** - * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods - */ -Buffer._augment = function _augment (arr) { - arr.constructor = Buffer - arr._isBuffer = true - - // save reference to original Uint8Array set method before overwriting - arr._set = arr.set - - // deprecated - arr.get = BP.get - arr.set = BP.set - - arr.write = BP.write - arr.toString = BP.toString - arr.toLocaleString = BP.toString - arr.toJSON = BP.toJSON - arr.equals = BP.equals - arr.compare = BP.compare - arr.indexOf = BP.indexOf - arr.copy = BP.copy - arr.slice = BP.slice - arr.readUIntLE = BP.readUIntLE - arr.readUIntBE = BP.readUIntBE - arr.readUInt8 = BP.readUInt8 - arr.readUInt16LE = BP.readUInt16LE - arr.readUInt16BE = BP.readUInt16BE - arr.readUInt32LE = BP.readUInt32LE - arr.readUInt32BE = BP.readUInt32BE - arr.readIntLE = BP.readIntLE - arr.readIntBE = BP.readIntBE - arr.readInt8 = BP.readInt8 - arr.readInt16LE = BP.readInt16LE - arr.readInt16BE = BP.readInt16BE - arr.readInt32LE = BP.readInt32LE - arr.readInt32BE = BP.readInt32BE - arr.readFloatLE = BP.readFloatLE - arr.readFloatBE = BP.readFloatBE - arr.readDoubleLE = BP.readDoubleLE - arr.readDoubleBE = BP.readDoubleBE - arr.writeUInt8 = BP.writeUInt8 - arr.writeUIntLE = BP.writeUIntLE - arr.writeUIntBE = BP.writeUIntBE - arr.writeUInt16LE = BP.writeUInt16LE - arr.writeUInt16BE = BP.writeUInt16BE - arr.writeUInt32LE = BP.writeUInt32LE - arr.writeUInt32BE = BP.writeUInt32BE - arr.writeIntLE = BP.writeIntLE - arr.writeIntBE = BP.writeIntBE - arr.writeInt8 = BP.writeInt8 - arr.writeInt16LE = BP.writeInt16LE - arr.writeInt16BE = BP.writeInt16BE - arr.writeInt32LE = BP.writeInt32LE - arr.writeInt32BE = BP.writeInt32BE - arr.writeFloatLE = BP.writeFloatLE - arr.writeFloatBE = BP.writeFloatBE - arr.writeDoubleLE = BP.writeDoubleLE - arr.writeDoubleBE = BP.writeDoubleBE - arr.fill = BP.fill - arr.inspect = BP.inspect - arr.toArrayBuffer = BP.toArrayBuffer - - return arr -} - -var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g - -function base64clean (str) { - // Node strips out invalid characters like \n and \t from the string, base64-js does not - str = stringtrim(str).replace(INVALID_BASE64_RE, '') - // Node converts strings with length < 2 to '' - if (str.length < 2) return '' - // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not - while (str.length % 4 !== 0) { - str = str + '=' - } - return str -} - -function stringtrim (str) { - if (str.trim) return str.trim() - return str.replace(/^\s+|\s+$/g, '') -} - -function toHex (n) { - if (n < 16) return '0' + n.toString(16) - return n.toString(16) -} - -function utf8ToBytes (string, units) { - units = units || Infinity - var codePoint - var length = string.length - var leadSurrogate = null - var bytes = [] - - for (var i = 0; i < length; i++) { - codePoint = string.charCodeAt(i) - - // is surrogate component - if (codePoint > 0xD7FF && codePoint < 0xE000) { - // last char was a lead - if (!leadSurrogate) { - // no lead yet - if (codePoint > 0xDBFF) { - // unexpected trail - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } else if (i + 1 === length) { - // unpaired lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } - - // valid lead - leadSurrogate = codePoint - - continue - } - - // 2 leads in a row - if (codePoint < 0xDC00) { - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - leadSurrogate = codePoint - continue - } - - // valid surrogate pair - codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 - } else if (leadSurrogate) { - // valid bmp char, but last char was a lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - } - - leadSurrogate = null - - // encode utf8 - if (codePoint < 0x80) { - if ((units -= 1) < 0) break - bytes.push(codePoint) - } else if (codePoint < 0x800) { - if ((units -= 2) < 0) break - bytes.push( - codePoint >> 0x6 | 0xC0, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x10000) { - if ((units -= 3) < 0) break - bytes.push( - codePoint >> 0xC | 0xE0, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x110000) { - if ((units -= 4) < 0) break - bytes.push( - codePoint >> 0x12 | 0xF0, - codePoint >> 0xC & 0x3F | 0x80, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else { - throw new Error('Invalid code point') - } - } - - return bytes -} - -function asciiToBytes (str) { - var byteArray = [] - for (var i = 0; i < str.length; i++) { - // Node's code seems to be doing this and not & 0x7F.. - byteArray.push(str.charCodeAt(i) & 0xFF) - } - return byteArray -} - -function utf16leToBytes (str, units) { - var c, hi, lo - var byteArray = [] - for (var i = 0; i < str.length; i++) { - if ((units -= 2) < 0) break - - c = str.charCodeAt(i) - hi = c >> 8 - lo = c % 256 - byteArray.push(lo) - byteArray.push(hi) - } - - return byteArray -} - -function base64ToBytes (str) { - return base64.toByteArray(base64clean(str)) -} - -function blitBuffer (src, dst, offset, length) { - for (var i = 0; i < length; i++) { - if ((i + offset >= dst.length) || (i >= src.length)) break - dst[i + offset] = src[i] - } - return i -} - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) - -},{"10":10,"13":13,"7":7}],10:[function(_dereq_,module,exports){ -var toString = {}.toString; - -module.exports = Array.isArray || function (arr) { - return toString.call(arr) == '[object Array]'; -}; - -},{}],11:[function(_dereq_,module,exports){ -(function (Buffer){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. - -function isArray(arg) { - if (Array.isArray) { - return Array.isArray(arg); - } - return objectToString(arg) === '[object Array]'; -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = Buffer.isBuffer; - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - -}).call(this,{"isBuffer":_dereq_(15)}) - -},{"15":15}],12:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -function EventEmitter() { - this._events = this._events || {}; - this._maxListeners = this._maxListeners || undefined; -} -module.exports = EventEmitter; - -// Backwards-compat with node 0.10.x -EventEmitter.EventEmitter = EventEmitter; - -EventEmitter.prototype._events = undefined; -EventEmitter.prototype._maxListeners = undefined; - -// By default EventEmitters will print a warning if more than 10 listeners are -// added to it. This is a useful default which helps finding memory leaks. -EventEmitter.defaultMaxListeners = 10; - -// Obviously not all Emitters should be limited to 10. This function allows -// that to be increased. Set to zero for unlimited. -EventEmitter.prototype.setMaxListeners = function(n) { - if (!isNumber(n) || n < 0 || isNaN(n)) - throw TypeError('n must be a positive number'); - this._maxListeners = n; - return this; -}; - -EventEmitter.prototype.emit = function(type) { - var er, handler, len, args, i, listeners; - - if (!this._events) - this._events = {}; - - // If there is no 'error' event listener then throw. - if (type === 'error') { - if (!this._events.error || - (isObject(this._events.error) && !this._events.error.length)) { - er = arguments[1]; - if (er instanceof Error) { - throw er; // Unhandled 'error' event - } - throw TypeError('Uncaught, unspecified "error" event.'); - } - } - - handler = this._events[type]; - - if (isUndefined(handler)) - return false; - - if (isFunction(handler)) { - switch (arguments.length) { - // fast cases - case 1: - handler.call(this); - break; - case 2: - handler.call(this, arguments[1]); - break; - case 3: - handler.call(this, arguments[1], arguments[2]); - break; - // slower - default: - len = arguments.length; - args = new Array(len - 1); - for (i = 1; i < len; i++) - args[i - 1] = arguments[i]; - handler.apply(this, args); - } - } else if (isObject(handler)) { - len = arguments.length; - args = new Array(len - 1); - for (i = 1; i < len; i++) - args[i - 1] = arguments[i]; - - listeners = handler.slice(); - len = listeners.length; - for (i = 0; i < len; i++) - listeners[i].apply(this, args); - } - - return true; -}; - -EventEmitter.prototype.addListener = function(type, listener) { - var m; - - if (!isFunction(listener)) - throw TypeError('listener must be a function'); - - if (!this._events) - this._events = {}; - - // To avoid recursion in the case that type === "newListener"! Before - // adding it to the listeners, first emit "newListener". - if (this._events.newListener) - this.emit('newListener', type, - isFunction(listener.listener) ? - listener.listener : listener); - - if (!this._events[type]) - // Optimize the case of one listener. Don't need the extra array object. - this._events[type] = listener; - else if (isObject(this._events[type])) - // If we've already got an array, just append. - this._events[type].push(listener); - else - // Adding the second element, need to change to array. - this._events[type] = [this._events[type], listener]; - - // Check for listener leak - if (isObject(this._events[type]) && !this._events[type].warned) { - var m; - if (!isUndefined(this._maxListeners)) { - m = this._maxListeners; - } else { - m = EventEmitter.defaultMaxListeners; - } - - if (m && m > 0 && this._events[type].length > m) { - this._events[type].warned = true; - console.error('(node) warning: possible EventEmitter memory ' + - 'leak detected. %d listeners added. ' + - 'Use emitter.setMaxListeners() to increase limit.', - this._events[type].length); - if (typeof console.trace === 'function') { - // not supported in IE 10 - console.trace(); - } - } - } - - return this; -}; - -EventEmitter.prototype.on = EventEmitter.prototype.addListener; - -EventEmitter.prototype.once = function(type, listener) { - if (!isFunction(listener)) - throw TypeError('listener must be a function'); - - var fired = false; - - function g() { - this.removeListener(type, g); - - if (!fired) { - fired = true; - listener.apply(this, arguments); - } - } - - g.listener = listener; - this.on(type, g); - - return this; -}; - -// emits a 'removeListener' event iff the listener was removed -EventEmitter.prototype.removeListener = function(type, listener) { - var list, position, length, i; - - if (!isFunction(listener)) - throw TypeError('listener must be a function'); - - if (!this._events || !this._events[type]) - return this; - - list = this._events[type]; - length = list.length; - position = -1; - - if (list === listener || - (isFunction(list.listener) && list.listener === listener)) { - delete this._events[type]; - if (this._events.removeListener) - this.emit('removeListener', type, listener); - - } else if (isObject(list)) { - for (i = length; i-- > 0;) { - if (list[i] === listener || - (list[i].listener && list[i].listener === listener)) { - position = i; - break; - } - } - - if (position < 0) - return this; - - if (list.length === 1) { - list.length = 0; - delete this._events[type]; - } else { - list.splice(position, 1); - } - - if (this._events.removeListener) - this.emit('removeListener', type, listener); - } - - return this; -}; - -EventEmitter.prototype.removeAllListeners = function(type) { - var key, listeners; - - if (!this._events) - return this; - - // not listening for removeListener, no need to emit - if (!this._events.removeListener) { - if (arguments.length === 0) - this._events = {}; - else if (this._events[type]) - delete this._events[type]; - return this; - } - - // emit removeListener for all listeners on all events - if (arguments.length === 0) { - for (key in this._events) { - if (key === 'removeListener') continue; - this.removeAllListeners(key); - } - this.removeAllListeners('removeListener'); - this._events = {}; - return this; - } - - listeners = this._events[type]; - - if (isFunction(listeners)) { - this.removeListener(type, listeners); - } else { - // LIFO order - while (listeners.length) - this.removeListener(type, listeners[listeners.length - 1]); - } - delete this._events[type]; - - return this; -}; - -EventEmitter.prototype.listeners = function(type) { - var ret; - if (!this._events || !this._events[type]) - ret = []; - else if (isFunction(this._events[type])) - ret = [this._events[type]]; - else - ret = this._events[type].slice(); - return ret; -}; - -EventEmitter.listenerCount = function(emitter, type) { - var ret; - if (!emitter._events || !emitter._events[type]) - ret = 0; - else if (isFunction(emitter._events[type])) - ret = 1; - else - ret = emitter._events[type].length; - return ret; -}; - -function isFunction(arg) { - return typeof arg === 'function'; -} - -function isNumber(arg) { - return typeof arg === 'number'; -} - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} - -function isUndefined(arg) { - return arg === void 0; -} - -},{}],13:[function(_dereq_,module,exports){ -exports.read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m - var eLen = (nBytes * 8) - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var nBits = -7 - var i = isLE ? (nBytes - 1) : 0 - var d = isLE ? -1 : 1 - var s = buffer[offset + i] - - i += d - - e = s & ((1 << (-nBits)) - 1) - s >>= (-nBits) - nBits += eLen - for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {} - - m = e & ((1 << (-nBits)) - 1) - e >>= (-nBits) - nBits += mLen - for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {} - - if (e === 0) { - e = 1 - eBias - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen) - e = e - eBias - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -} - -exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c - var eLen = (nBytes * 8) - mLen - 1 - var eMax = (1 << eLen) - 1 - var eBias = eMax >> 1 - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) - var i = isLE ? 0 : (nBytes - 1) - var d = isLE ? 1 : -1 - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 - - value = Math.abs(value) - - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0 - e = eMax - } else { - e = Math.floor(Math.log(value) / Math.LN2) - if (value * (c = Math.pow(2, -e)) < 1) { - e-- - c *= 2 - } - if (e + eBias >= 1) { - value += rt / c - } else { - value += rt * Math.pow(2, 1 - eBias) - } - if (value * c >= 2) { - e++ - c /= 2 - } - - if (e + eBias >= eMax) { - m = 0 - e = eMax - } else if (e + eBias >= 1) { - m = ((value * c) - 1) * Math.pow(2, mLen) - e = e + eBias - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) - e = 0 - } - } - - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} - - e = (e << mLen) | m - eLen += mLen - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} - - buffer[offset + i - d] |= s * 128 -} - -},{}],14:[function(_dereq_,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],15:[function(_dereq_,module,exports){ -/*! - * Determine if an object is a Buffer - * - * @author Feross Aboukhadijeh - * @license MIT - */ - -// The _isBuffer check is for Safari 5-7 support, because it's missing -// Object.prototype.constructor. Remove this eventually -module.exports = function (obj) { - return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer) -} - -function isBuffer (obj) { - return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj) -} - -// For Node v0.10 support. Remove this eventually. -function isSlowBuffer (obj) { - return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) -} - -},{}],16:[function(_dereq_,module,exports){ -(function (process){ -'use strict'; - -if (!process.version || - process.version.indexOf('v0.') === 0 || - process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { - module.exports = { nextTick: nextTick }; -} else { - module.exports = process -} - -function nextTick(fn, arg1, arg2, arg3) { - if (typeof fn !== 'function') { - throw new TypeError('"callback" argument must be a function'); - } - var len = arguments.length; - var args, i; - switch (len) { - case 0: - case 1: - return process.nextTick(fn); - case 2: - return process.nextTick(function afterTickOne() { - fn.call(null, arg1); - }); - case 3: - return process.nextTick(function afterTickTwo() { - fn.call(null, arg1, arg2); - }); - case 4: - return process.nextTick(function afterTickThree() { - fn.call(null, arg1, arg2, arg3); - }); - default: - args = new Array(len - 1); - i = 0; - while (i < args.length) { - args[i++] = arguments[i]; - } - return process.nextTick(function afterTick() { - fn.apply(null, args); - }); - } -} - - -}).call(this,_dereq_(17)) - -},{"17":17}],17:[function(_dereq_,module,exports){ -// shim for using process in browser -var process = module.exports = {}; - -// cached from whatever global is present so that test runners that stub it -// don't break things. But we need to wrap it in a try catch in case it is -// wrapped in strict mode code which doesn't define any globals. It's inside a -// function because try/catches deoptimize in certain engines. - -var cachedSetTimeout; -var cachedClearTimeout; - -function defaultSetTimout() { - throw new Error('setTimeout has not been defined'); -} -function defaultClearTimeout () { - throw new Error('clearTimeout has not been defined'); -} -(function () { - try { - if (typeof setTimeout === 'function') { - cachedSetTimeout = setTimeout; - } else { - cachedSetTimeout = defaultSetTimout; - } - } catch (e) { - cachedSetTimeout = defaultSetTimout; - } - try { - if (typeof clearTimeout === 'function') { - cachedClearTimeout = clearTimeout; - } else { - cachedClearTimeout = defaultClearTimeout; - } - } catch (e) { - cachedClearTimeout = defaultClearTimeout; - } -} ()) -function runTimeout(fun) { - if (cachedSetTimeout === setTimeout) { - //normal enviroments in sane situations - return setTimeout(fun, 0); - } - // if setTimeout wasn't available but was latter defined - if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { - cachedSetTimeout = setTimeout; - return setTimeout(fun, 0); - } - try { - // when when somebody has screwed with setTimeout but no I.E. maddness - return cachedSetTimeout(fun, 0); - } catch(e){ - try { - // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally - return cachedSetTimeout.call(null, fun, 0); - } catch(e){ - // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error - return cachedSetTimeout.call(this, fun, 0); - } - } - - -} -function runClearTimeout(marker) { - if (cachedClearTimeout === clearTimeout) { - //normal enviroments in sane situations - return clearTimeout(marker); - } - // if clearTimeout wasn't available but was latter defined - if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { - cachedClearTimeout = clearTimeout; - return clearTimeout(marker); - } - try { - // when when somebody has screwed with setTimeout but no I.E. maddness - return cachedClearTimeout(marker); - } catch (e){ - try { - // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally - return cachedClearTimeout.call(null, marker); - } catch (e){ - // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. - // Some versions of I.E. have different rules for clearTimeout vs setTimeout - return cachedClearTimeout.call(this, marker); - } - } - - - -} -var queue = []; -var draining = false; -var currentQueue; -var queueIndex = -1; - -function cleanUpNextTick() { - if (!draining || !currentQueue) { - return; - } - draining = false; - if (currentQueue.length) { - queue = currentQueue.concat(queue); - } else { - queueIndex = -1; - } - if (queue.length) { - drainQueue(); - } -} - -function drainQueue() { - if (draining) { - return; - } - var timeout = runTimeout(cleanUpNextTick); - draining = true; - - var len = queue.length; - while(len) { - currentQueue = queue; - queue = []; - while (++queueIndex < len) { - if (currentQueue) { - currentQueue[queueIndex].run(); - } - } - queueIndex = -1; - len = queue.length; - } - currentQueue = null; - draining = false; - runClearTimeout(timeout); -} - -process.nextTick = function (fun) { - var args = new Array(arguments.length - 1); - if (arguments.length > 1) { - for (var i = 1; i < arguments.length; i++) { - args[i - 1] = arguments[i]; - } - } - queue.push(new Item(fun, args)); - if (queue.length === 1 && !draining) { - runTimeout(drainQueue); - } -}; - -// v8 likes predictible objects -function Item(fun, array) { - this.fun = fun; - this.array = array; -} -Item.prototype.run = function () { - this.fun.apply(null, this.array); -}; -process.title = 'browser'; -process.browser = true; -process.env = {}; -process.argv = []; -process.version = ''; // empty string to avoid regexp issues -process.versions = {}; - -function noop() {} - -process.on = noop; -process.addListener = noop; -process.once = noop; -process.off = noop; -process.removeListener = noop; -process.removeAllListeners = noop; -process.emit = noop; -process.prependListener = noop; -process.prependOnceListener = noop; - -process.listeners = function (name) { return [] } - -process.binding = function (name) { - throw new Error('process.binding is not supported'); -}; - -process.cwd = function () { return '/' }; -process.chdir = function (dir) { - throw new Error('process.chdir is not supported'); -}; -process.umask = function() { return 0; }; - -},{}],18:[function(_dereq_,module,exports){ -module.exports = _dereq_(19); - -},{"19":19}],19:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a duplex stream is just a stream that is both readable and writable. -// Since JS doesn't have multiple prototypal inheritance, this class -// prototypally inherits from Readable, and then parasitically from -// Writable. - -'use strict'; - -/**/ - -var pna = _dereq_(16); -/**/ - -/**/ -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) { - keys.push(key); - }return keys; -}; -/**/ - -module.exports = Duplex; - -/**/ -var util = _dereq_(11); -util.inherits = _dereq_(14); -/**/ - -var Readable = _dereq_(21); -var Writable = _dereq_(23); - -util.inherits(Duplex, Readable); - -{ - // avoid scope creep, the keys array can then be collected - var keys = objectKeys(Writable.prototype); - for (var v = 0; v < keys.length; v++) { - var method = keys[v]; - if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; - } -} - -function Duplex(options) { - if (!(this instanceof Duplex)) return new Duplex(options); - - Readable.call(this, options); - Writable.call(this, options); - - if (options && options.readable === false) this.readable = false; - - if (options && options.writable === false) this.writable = false; - - this.allowHalfOpen = true; - if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; - - this.once('end', onend); -} - -Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._writableState.highWaterMark; - } -}); - -// the no-half-open enforcer -function onend() { - // if we allow half-open state, or if the writable side ended, - // then we're ok. - if (this.allowHalfOpen || this._writableState.ended) return; - - // no more data can be written. - // But allow more writes to happen in this tick. - pna.nextTick(onEndNT, this); -} - -function onEndNT(self) { - self.end(); -} - -Object.defineProperty(Duplex.prototype, 'destroyed', { - get: function () { - if (this._readableState === undefined || this._writableState === undefined) { - return false; - } - return this._readableState.destroyed && this._writableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (this._readableState === undefined || this._writableState === undefined) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._readableState.destroyed = value; - this._writableState.destroyed = value; - } -}); - -Duplex.prototype._destroy = function (err, cb) { - this.push(null); - this.end(); - - pna.nextTick(cb, err); -}; -},{"11":11,"14":14,"16":16,"21":21,"23":23}],20:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a passthrough stream. -// basically just the most minimal sort of Transform stream. -// Every written chunk gets output as-is. - -'use strict'; - -module.exports = PassThrough; - -var Transform = _dereq_(22); - -/**/ -var util = _dereq_(11); -util.inherits = _dereq_(14); -/**/ - -util.inherits(PassThrough, Transform); - -function PassThrough(options) { - if (!(this instanceof PassThrough)) return new PassThrough(options); - - Transform.call(this, options); -} - -PassThrough.prototype._transform = function (chunk, encoding, cb) { - cb(null, chunk); -}; -},{"11":11,"14":14,"22":22}],21:[function(_dereq_,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -/**/ - -var pna = _dereq_(16); -/**/ - -module.exports = Readable; - -/**/ -var isArray = _dereq_(27); -/**/ - -/**/ -var Duplex; -/**/ - -Readable.ReadableState = ReadableState; - -/**/ -var EE = _dereq_(12).EventEmitter; - -var EElistenerCount = function (emitter, type) { - return emitter.listeners(type).length; -}; -/**/ - -/**/ -var Stream = _dereq_(26); -/**/ - -/**/ - -var Buffer = _dereq_(33).Buffer; -var OurUint8Array = global.Uint8Array || function () {}; -function _uint8ArrayToBuffer(chunk) { - return Buffer.from(chunk); -} -function _isUint8Array(obj) { - return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; -} - -/**/ - -/**/ -var util = _dereq_(11); -util.inherits = _dereq_(14); -/**/ - -/**/ -var debugUtil = _dereq_(8); -var debug = void 0; -if (debugUtil && debugUtil.debuglog) { - debug = debugUtil.debuglog('stream'); -} else { - debug = function () {}; -} -/**/ - -var BufferList = _dereq_(24); -var destroyImpl = _dereq_(25); -var StringDecoder; - -util.inherits(Readable, Stream); - -var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; - -function prependListener(emitter, event, fn) { - // Sadly this is not cacheable as some libraries bundle their own - // event emitter implementation with them. - if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); - - // This is a hack to make sure that our error handler is attached before any - // userland ones. NEVER DO THIS. This is here only because this code needs - // to continue to work with older versions of Node.js that do not include - // the prependListener() method. The goal is to eventually remove this hack. - if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; -} - -function ReadableState(options, stream) { - Duplex = Duplex || _dereq_(19); - - options = options || {}; - - // Duplex streams are both readable and writable, but share - // the same options object. - // However, some cases require setting options to different - // values for the readable and the writable sides of the duplex stream. - // These options can be provided separately as readableXXX and writableXXX. - var isDuplex = stream instanceof Duplex; - - // object stream flag. Used to make read(n) ignore n and to - // make all the buffer merging and length checks go away - this.objectMode = !!options.objectMode; - - if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; - - // the point at which it stops calling _read() to fill the buffer - // Note: 0 is a valid value, means "don't call _read preemptively ever" - var hwm = options.highWaterMark; - var readableHwm = options.readableHighWaterMark; - var defaultHwm = this.objectMode ? 16 : 16 * 1024; - - if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm; - - // cast to ints. - this.highWaterMark = Math.floor(this.highWaterMark); - - // A linked list is used to store data chunks instead of an array because the - // linked list can remove elements from the beginning faster than - // array.shift() - this.buffer = new BufferList(); - this.length = 0; - this.pipes = null; - this.pipesCount = 0; - this.flowing = null; - this.ended = false; - this.endEmitted = false; - this.reading = false; - - // a flag to be able to tell if the event 'readable'/'data' is emitted - // immediately, or on a later tick. We set this to true at first, because - // any actions that shouldn't happen until "later" should generally also - // not happen before the first read call. - this.sync = true; - - // whenever we return null, then we set a flag to say - // that we're awaiting a 'readable' event emission. - this.needReadable = false; - this.emittedReadable = false; - this.readableListening = false; - this.resumeScheduled = false; - - // has it been destroyed - this.destroyed = false; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // the number of writers that are awaiting a drain event in .pipe()s - this.awaitDrain = 0; - - // if true, a maybeReadMore has been scheduled - this.readingMore = false; - - this.decoder = null; - this.encoding = null; - if (options.encoding) { - if (!StringDecoder) StringDecoder = _dereq_(28).StringDecoder; - this.decoder = new StringDecoder(options.encoding); - this.encoding = options.encoding; - } -} - -function Readable(options) { - Duplex = Duplex || _dereq_(19); - - if (!(this instanceof Readable)) return new Readable(options); - - this._readableState = new ReadableState(options, this); - - // legacy - this.readable = true; - - if (options) { - if (typeof options.read === 'function') this._read = options.read; - - if (typeof options.destroy === 'function') this._destroy = options.destroy; - } - - Stream.call(this); -} - -Object.defineProperty(Readable.prototype, 'destroyed', { - get: function () { - if (this._readableState === undefined) { - return false; - } - return this._readableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (!this._readableState) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._readableState.destroyed = value; - } -}); - -Readable.prototype.destroy = destroyImpl.destroy; -Readable.prototype._undestroy = destroyImpl.undestroy; -Readable.prototype._destroy = function (err, cb) { - this.push(null); - cb(err); -}; - -// Manually shove something into the read() buffer. -// This returns true if the highWaterMark has not been hit yet, -// similar to how Writable.write() returns true if you should -// write() some more. -Readable.prototype.push = function (chunk, encoding) { - var state = this._readableState; - var skipChunkCheck; - - if (!state.objectMode) { - if (typeof chunk === 'string') { - encoding = encoding || state.defaultEncoding; - if (encoding !== state.encoding) { - chunk = Buffer.from(chunk, encoding); - encoding = ''; - } - skipChunkCheck = true; - } - } else { - skipChunkCheck = true; - } - - return readableAddChunk(this, chunk, encoding, false, skipChunkCheck); -}; - -// Unshift should *always* be something directly out of read() -Readable.prototype.unshift = function (chunk) { - return readableAddChunk(this, chunk, null, true, false); -}; - -function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) { - var state = stream._readableState; - if (chunk === null) { - state.reading = false; - onEofChunk(stream, state); - } else { - var er; - if (!skipChunkCheck) er = chunkInvalid(state, chunk); - if (er) { - stream.emit('error', er); - } else if (state.objectMode || chunk && chunk.length > 0) { - if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) { - chunk = _uint8ArrayToBuffer(chunk); - } - - if (addToFront) { - if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true); - } else if (state.ended) { - stream.emit('error', new Error('stream.push() after EOF')); - } else { - state.reading = false; - if (state.decoder && !encoding) { - chunk = state.decoder.write(chunk); - if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state); - } else { - addChunk(stream, state, chunk, false); - } - } - } else if (!addToFront) { - state.reading = false; - } - } - - return needMoreData(state); -} - -function addChunk(stream, state, chunk, addToFront) { - if (state.flowing && state.length === 0 && !state.sync) { - stream.emit('data', chunk); - stream.read(0); - } else { - // update the buffer info. - state.length += state.objectMode ? 1 : chunk.length; - if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); - - if (state.needReadable) emitReadable(stream); - } - maybeReadMore(stream, state); -} - -function chunkInvalid(state, chunk) { - var er; - if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); - } - return er; -} - -// if it's past the high water mark, we can push in some more. -// Also, if we have no data yet, we can stand some -// more bytes. This is to work around cases where hwm=0, -// such as the repl. Also, if the push() triggered a -// readable event, and the user called read(largeNumber) such that -// needReadable was set, then we ought to push more, so that another -// 'readable' event will be triggered. -function needMoreData(state) { - return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0); -} - -Readable.prototype.isPaused = function () { - return this._readableState.flowing === false; -}; - -// backwards compatibility. -Readable.prototype.setEncoding = function (enc) { - if (!StringDecoder) StringDecoder = _dereq_(28).StringDecoder; - this._readableState.decoder = new StringDecoder(enc); - this._readableState.encoding = enc; - return this; -}; - -// Don't raise the hwm > 8MB -var MAX_HWM = 0x800000; -function computeNewHighWaterMark(n) { - if (n >= MAX_HWM) { - n = MAX_HWM; - } else { - // Get the next highest power of 2 to prevent increasing hwm excessively in - // tiny amounts - n--; - n |= n >>> 1; - n |= n >>> 2; - n |= n >>> 4; - n |= n >>> 8; - n |= n >>> 16; - n++; - } - return n; -} - -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function howMuchToRead(n, state) { - if (n <= 0 || state.length === 0 && state.ended) return 0; - if (state.objectMode) return 1; - if (n !== n) { - // Only flow one buffer at a time - if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; - } - // If we're asking for more than the current hwm, then raise the hwm. - if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); - if (n <= state.length) return n; - // Don't have enough - if (!state.ended) { - state.needReadable = true; - return 0; - } - return state.length; -} - -// you can override either this method, or the async _read(n) below. -Readable.prototype.read = function (n) { - debug('read', n); - n = parseInt(n, 10); - var state = this._readableState; - var nOrig = n; - - if (n !== 0) state.emittedReadable = false; - - // if we're doing read(0) to trigger a readable event, but we - // already have a bunch of data in the buffer, then just trigger - // the 'readable' event and move on. - if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) { - debug('read: emitReadable', state.length, state.ended); - if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); - return null; - } - - n = howMuchToRead(n, state); - - // if we've ended, and we're now clear, then finish it up. - if (n === 0 && state.ended) { - if (state.length === 0) endReadable(this); - return null; - } - - // All the actual chunk generation logic needs to be - // *below* the call to _read. The reason is that in certain - // synthetic stream cases, such as passthrough streams, _read - // may be a completely synchronous operation which may change - // the state of the read buffer, providing enough data when - // before there was *not* enough. - // - // So, the steps are: - // 1. Figure out what the state of things will be after we do - // a read from the buffer. - // - // 2. If that resulting state will trigger a _read, then call _read. - // Note that this may be asynchronous, or synchronous. Yes, it is - // deeply ugly to write APIs this way, but that still doesn't mean - // that the Readable class should behave improperly, as streams are - // designed to be sync/async agnostic. - // Take note if the _read call is sync or async (ie, if the read call - // has returned yet), so that we know whether or not it's safe to emit - // 'readable' etc. - // - // 3. Actually pull the requested chunks out of the buffer and return. - - // if we need a readable event, then we need to do some reading. - var doRead = state.needReadable; - debug('need readable', doRead); - - // if we currently have less than the highWaterMark, then also read some - if (state.length === 0 || state.length - n < state.highWaterMark) { - doRead = true; - debug('length less than watermark', doRead); - } - - // however, if we've ended, then there's no point, and if we're already - // reading, then it's unnecessary. - if (state.ended || state.reading) { - doRead = false; - debug('reading or ended', doRead); - } else if (doRead) { - debug('do read'); - state.reading = true; - state.sync = true; - // if the length is currently zero, then we *need* a readable event. - if (state.length === 0) state.needReadable = true; - // call internal read method - this._read(state.highWaterMark); - state.sync = false; - // If _read pushed data synchronously, then `reading` will be false, - // and we need to re-evaluate how much data we can return to the user. - if (!state.reading) n = howMuchToRead(nOrig, state); - } - - var ret; - if (n > 0) ret = fromList(n, state);else ret = null; - - if (ret === null) { - state.needReadable = true; - n = 0; - } else { - state.length -= n; - } - - if (state.length === 0) { - // If we have nothing in the buffer, then we want to know - // as soon as we *do* get something into the buffer. - if (!state.ended) state.needReadable = true; - - // If we tried to read() past the EOF, then emit end on the next tick. - if (nOrig !== n && state.ended) endReadable(this); - } - - if (ret !== null) this.emit('data', ret); - - return ret; -}; - -function onEofChunk(stream, state) { - if (state.ended) return; - if (state.decoder) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) { - state.buffer.push(chunk); - state.length += state.objectMode ? 1 : chunk.length; - } - } - state.ended = true; - - // emit 'readable' now to make sure it gets picked up. - emitReadable(stream); -} - -// Don't emit readable right away in sync mode, because this can trigger -// another read() call => stack overflow. This way, it might trigger -// a nextTick recursion warning, but that's not so bad. -function emitReadable(stream) { - var state = stream._readableState; - state.needReadable = false; - if (!state.emittedReadable) { - debug('emitReadable', state.flowing); - state.emittedReadable = true; - if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream); - } -} - -function emitReadable_(stream) { - debug('emit readable'); - stream.emit('readable'); - flow(stream); -} - -// at this point, the user has presumably seen the 'readable' event, -// and called read() to consume some data. that may have triggered -// in turn another _read(n) call, in which case reading = true if -// it's in progress. -// However, if we're not ended, or reading, and the length < hwm, -// then go ahead and try to read some more preemptively. -function maybeReadMore(stream, state) { - if (!state.readingMore) { - state.readingMore = true; - pna.nextTick(maybeReadMore_, stream, state); - } -} - -function maybeReadMore_(stream, state) { - var len = state.length; - while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) { - debug('maybeReadMore read 0'); - stream.read(0); - if (len === state.length) - // didn't get any data, stop spinning. - break;else len = state.length; - } - state.readingMore = false; -} - -// abstract method. to be overridden in specific implementation classes. -// call cb(er, data) where data is <= n in length. -// for virtual (non-string, non-buffer) streams, "length" is somewhat -// arbitrary, and perhaps not very meaningful. -Readable.prototype._read = function (n) { - this.emit('error', new Error('_read() is not implemented')); -}; - -Readable.prototype.pipe = function (dest, pipeOpts) { - var src = this; - var state = this._readableState; - - switch (state.pipesCount) { - case 0: - state.pipes = dest; - break; - case 1: - state.pipes = [state.pipes, dest]; - break; - default: - state.pipes.push(dest); - break; - } - state.pipesCount += 1; - debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); - - var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; - - var endFn = doEnd ? onend : unpipe; - if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn); - - dest.on('unpipe', onunpipe); - function onunpipe(readable, unpipeInfo) { - debug('onunpipe'); - if (readable === src) { - if (unpipeInfo && unpipeInfo.hasUnpiped === false) { - unpipeInfo.hasUnpiped = true; - cleanup(); - } - } - } - - function onend() { - debug('onend'); - dest.end(); - } - - // when the dest drains, it reduces the awaitDrain counter - // on the source. This would be more elegant with a .once() - // handler in flow(), but adding and removing repeatedly is - // too slow. - var ondrain = pipeOnDrain(src); - dest.on('drain', ondrain); - - var cleanedUp = false; - function cleanup() { - debug('cleanup'); - // cleanup event handlers once the pipe is broken - dest.removeListener('close', onclose); - dest.removeListener('finish', onfinish); - dest.removeListener('drain', ondrain); - dest.removeListener('error', onerror); - dest.removeListener('unpipe', onunpipe); - src.removeListener('end', onend); - src.removeListener('end', unpipe); - src.removeListener('data', ondata); - - cleanedUp = true; - - // if the reader is waiting for a drain event from this - // specific writer, then it would cause it to never start - // flowing again. - // So, if this is awaiting a drain, then we just call it now. - // If we don't know, then assume that we are waiting for one. - if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); - } - - // If the user pushes more data while we're writing to dest then we'll end up - // in ondata again. However, we only want to increase awaitDrain once because - // dest will only emit one 'drain' event for the multiple writes. - // => Introduce a guard on increasing awaitDrain. - var increasedAwaitDrain = false; - src.on('data', ondata); - function ondata(chunk) { - debug('ondata'); - increasedAwaitDrain = false; - var ret = dest.write(chunk); - if (false === ret && !increasedAwaitDrain) { - // If the user unpiped during `dest.write()`, it is possible - // to get stuck in a permanently paused state if that write - // also returned false. - // => Check whether `dest` is still a piping destination. - if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { - debug('false write response, pause', src._readableState.awaitDrain); - src._readableState.awaitDrain++; - increasedAwaitDrain = true; - } - src.pause(); - } - } - - // if the dest has an error, then stop piping into it. - // however, don't suppress the throwing behavior for this. - function onerror(er) { - debug('onerror', er); - unpipe(); - dest.removeListener('error', onerror); - if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er); - } - - // Make sure our error handler is attached before userland ones. - prependListener(dest, 'error', onerror); - - // Both close and finish should trigger unpipe, but only once. - function onclose() { - dest.removeListener('finish', onfinish); - unpipe(); - } - dest.once('close', onclose); - function onfinish() { - debug('onfinish'); - dest.removeListener('close', onclose); - unpipe(); - } - dest.once('finish', onfinish); - - function unpipe() { - debug('unpipe'); - src.unpipe(dest); - } - - // tell the dest that it's being piped to - dest.emit('pipe', src); - - // start the flow if it hasn't been started already. - if (!state.flowing) { - debug('pipe resume'); - src.resume(); - } - - return dest; -}; - -function pipeOnDrain(src) { - return function () { - var state = src._readableState; - debug('pipeOnDrain', state.awaitDrain); - if (state.awaitDrain) state.awaitDrain--; - if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { - state.flowing = true; - flow(src); - } - }; -} - -Readable.prototype.unpipe = function (dest) { - var state = this._readableState; - var unpipeInfo = { hasUnpiped: false }; - - // if we're not piping anywhere, then do nothing. - if (state.pipesCount === 0) return this; - - // just one destination. most common case. - if (state.pipesCount === 1) { - // passed in one, but it's not the right one. - if (dest && dest !== state.pipes) return this; - - if (!dest) dest = state.pipes; - - // got a match. - state.pipes = null; - state.pipesCount = 0; - state.flowing = false; - if (dest) dest.emit('unpipe', this, unpipeInfo); - return this; - } - - // slow case. multiple pipe destinations. - - if (!dest) { - // remove all. - var dests = state.pipes; - var len = state.pipesCount; - state.pipes = null; - state.pipesCount = 0; - state.flowing = false; - - for (var i = 0; i < len; i++) { - dests[i].emit('unpipe', this, unpipeInfo); - }return this; - } - - // try to find the right one. - var index = indexOf(state.pipes, dest); - if (index === -1) return this; - - state.pipes.splice(index, 1); - state.pipesCount -= 1; - if (state.pipesCount === 1) state.pipes = state.pipes[0]; - - dest.emit('unpipe', this, unpipeInfo); - - return this; -}; - -// set up data events if they are asked for -// Ensure readable listeners eventually get something -Readable.prototype.on = function (ev, fn) { - var res = Stream.prototype.on.call(this, ev, fn); - - if (ev === 'data') { - // Start flowing on next tick if stream isn't explicitly paused - if (this._readableState.flowing !== false) this.resume(); - } else if (ev === 'readable') { - var state = this._readableState; - if (!state.endEmitted && !state.readableListening) { - state.readableListening = state.needReadable = true; - state.emittedReadable = false; - if (!state.reading) { - pna.nextTick(nReadingNextTick, this); - } else if (state.length) { - emitReadable(this); - } - } - } - - return res; -}; -Readable.prototype.addListener = Readable.prototype.on; - -function nReadingNextTick(self) { - debug('readable nexttick read 0'); - self.read(0); -} - -// pause() and resume() are remnants of the legacy readable stream API -// If the user uses them, then switch into old mode. -Readable.prototype.resume = function () { - var state = this._readableState; - if (!state.flowing) { - debug('resume'); - state.flowing = true; - resume(this, state); - } - return this; -}; - -function resume(stream, state) { - if (!state.resumeScheduled) { - state.resumeScheduled = true; - pna.nextTick(resume_, stream, state); - } -} - -function resume_(stream, state) { - if (!state.reading) { - debug('resume read 0'); - stream.read(0); - } - - state.resumeScheduled = false; - state.awaitDrain = 0; - stream.emit('resume'); - flow(stream); - if (state.flowing && !state.reading) stream.read(0); -} - -Readable.prototype.pause = function () { - debug('call pause flowing=%j', this._readableState.flowing); - if (false !== this._readableState.flowing) { - debug('pause'); - this._readableState.flowing = false; - this.emit('pause'); - } - return this; -}; - -function flow(stream) { - var state = stream._readableState; - debug('flow', state.flowing); - while (state.flowing && stream.read() !== null) {} -} - -// wrap an old-style stream as the async data source. -// This is *not* part of the readable stream interface. -// It is an ugly unfortunate mess of history. -Readable.prototype.wrap = function (stream) { - var _this = this; - - var state = this._readableState; - var paused = false; - - stream.on('end', function () { - debug('wrapped end'); - if (state.decoder && !state.ended) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) _this.push(chunk); - } - - _this.push(null); - }); - - stream.on('data', function (chunk) { - debug('wrapped data'); - if (state.decoder) chunk = state.decoder.write(chunk); - - // don't skip over falsy values in objectMode - if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; - - var ret = _this.push(chunk); - if (!ret) { - paused = true; - stream.pause(); - } - }); - - // proxy all the other methods. - // important when wrapping filters and duplexes. - for (var i in stream) { - if (this[i] === undefined && typeof stream[i] === 'function') { - this[i] = function (method) { - return function () { - return stream[method].apply(stream, arguments); - }; - }(i); - } - } - - // proxy certain important events. - for (var n = 0; n < kProxyEvents.length; n++) { - stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n])); - } - - // when we try to consume some more bytes, simply unpause the - // underlying stream. - this._read = function (n) { - debug('wrapped _read', n); - if (paused) { - paused = false; - stream.resume(); - } - }; - - return this; -}; - -Object.defineProperty(Readable.prototype, 'readableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._readableState.highWaterMark; - } -}); - -// exposed for testing purposes only. -Readable._fromList = fromList; - -// Pluck off n bytes from an array of buffers. -// Length is the combined lengths of all the buffers in the list. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function fromList(n, state) { - // nothing buffered - if (state.length === 0) return null; - - var ret; - if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { - // read it all, truncate the list - if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length); - state.buffer.clear(); - } else { - // read part of list - ret = fromListPartial(n, state.buffer, state.decoder); - } - - return ret; -} - -// Extracts only enough buffered data to satisfy the amount requested. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function fromListPartial(n, list, hasStrings) { - var ret; - if (n < list.head.data.length) { - // slice is the same for buffers and strings - ret = list.head.data.slice(0, n); - list.head.data = list.head.data.slice(n); - } else if (n === list.head.data.length) { - // first chunk is a perfect match - ret = list.shift(); - } else { - // result spans more than one buffer - ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list); - } - return ret; -} - -// Copies a specified amount of characters from the list of buffered data -// chunks. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function copyFromBufferString(n, list) { - var p = list.head; - var c = 1; - var ret = p.data; - n -= ret.length; - while (p = p.next) { - var str = p.data; - var nb = n > str.length ? str.length : n; - if (nb === str.length) ret += str;else ret += str.slice(0, n); - n -= nb; - if (n === 0) { - if (nb === str.length) { - ++c; - if (p.next) list.head = p.next;else list.head = list.tail = null; - } else { - list.head = p; - p.data = str.slice(nb); - } - break; - } - ++c; - } - list.length -= c; - return ret; -} - -// Copies a specified amount of bytes from the list of buffered data chunks. -// This function is designed to be inlinable, so please take care when making -// changes to the function body. -function copyFromBuffer(n, list) { - var ret = Buffer.allocUnsafe(n); - var p = list.head; - var c = 1; - p.data.copy(ret); - n -= p.data.length; - while (p = p.next) { - var buf = p.data; - var nb = n > buf.length ? buf.length : n; - buf.copy(ret, ret.length - n, 0, nb); - n -= nb; - if (n === 0) { - if (nb === buf.length) { - ++c; - if (p.next) list.head = p.next;else list.head = list.tail = null; - } else { - list.head = p; - p.data = buf.slice(nb); - } - break; - } - ++c; - } - list.length -= c; - return ret; -} - -function endReadable(stream) { - var state = stream._readableState; - - // If we get here before consuming all the bytes, then that is a - // bug in node. Should never happen. - if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream'); - - if (!state.endEmitted) { - state.ended = true; - pna.nextTick(endReadableNT, state, stream); - } -} - -function endReadableNT(state, stream) { - // Check that we didn't get one last unshift. - if (!state.endEmitted && state.length === 0) { - state.endEmitted = true; - stream.readable = false; - stream.emit('end'); - } -} - -function indexOf(xs, x) { - for (var i = 0, l = xs.length; i < l; i++) { - if (xs[i] === x) return i; - } - return -1; -} -}).call(this,_dereq_(17),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) - -},{"11":11,"12":12,"14":14,"16":16,"17":17,"19":19,"24":24,"25":25,"26":26,"27":27,"28":28,"33":33,"8":8}],22:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a transform stream is a readable/writable stream where you do -// something with the data. Sometimes it's called a "filter", -// but that's not a great name for it, since that implies a thing where -// some bits pass through, and others are simply ignored. (That would -// be a valid example of a transform, of course.) -// -// While the output is causally related to the input, it's not a -// necessarily symmetric or synchronous transformation. For example, -// a zlib stream might take multiple plain-text writes(), and then -// emit a single compressed chunk some time in the future. -// -// Here's how this works: -// -// The Transform stream has all the aspects of the readable and writable -// stream classes. When you write(chunk), that calls _write(chunk,cb) -// internally, and returns false if there's a lot of pending writes -// buffered up. When you call read(), that calls _read(n) until -// there's enough pending readable data buffered up. -// -// In a transform stream, the written data is placed in a buffer. When -// _read(n) is called, it transforms the queued up data, calling the -// buffered _write cb's as it consumes chunks. If consuming a single -// written chunk would result in multiple output chunks, then the first -// outputted bit calls the readcb, and subsequent chunks just go into -// the read buffer, and will cause it to emit 'readable' if necessary. -// -// This way, back-pressure is actually determined by the reading side, -// since _read has to be called to start processing a new chunk. However, -// a pathological inflate type of transform can cause excessive buffering -// here. For example, imagine a stream where every byte of input is -// interpreted as an integer from 0-255, and then results in that many -// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in -// 1kb of data being output. In this case, you could write a very small -// amount of input, and end up with a very large amount of output. In -// such a pathological inflating mechanism, there'd be no way to tell -// the system to stop doing the transform. A single 4MB write could -// cause the system to run out of memory. -// -// However, even in such a pathological case, only a single written chunk -// would be consumed, and then the rest would wait (un-transformed) until -// the results of the previous transformed chunk were consumed. - -'use strict'; - -module.exports = Transform; - -var Duplex = _dereq_(19); - -/**/ -var util = _dereq_(11); -util.inherits = _dereq_(14); -/**/ - -util.inherits(Transform, Duplex); - -function afterTransform(er, data) { - var ts = this._transformState; - ts.transforming = false; - - var cb = ts.writecb; - - if (!cb) { - return this.emit('error', new Error('write callback called multiple times')); - } - - ts.writechunk = null; - ts.writecb = null; - - if (data != null) // single equals check for both `null` and `undefined` - this.push(data); - - cb(er); - - var rs = this._readableState; - rs.reading = false; - if (rs.needReadable || rs.length < rs.highWaterMark) { - this._read(rs.highWaterMark); - } -} - -function Transform(options) { - if (!(this instanceof Transform)) return new Transform(options); - - Duplex.call(this, options); - - this._transformState = { - afterTransform: afterTransform.bind(this), - needTransform: false, - transforming: false, - writecb: null, - writechunk: null, - writeencoding: null - }; - - // start out asking for a readable event once data is transformed. - this._readableState.needReadable = true; - - // we have implemented the _read method, and done the other things - // that Readable wants before the first _read call, so unset the - // sync guard flag. - this._readableState.sync = false; - - if (options) { - if (typeof options.transform === 'function') this._transform = options.transform; - - if (typeof options.flush === 'function') this._flush = options.flush; - } - - // When the writable side finishes, then flush out anything remaining. - this.on('prefinish', prefinish); -} - -function prefinish() { - var _this = this; - - if (typeof this._flush === 'function') { - this._flush(function (er, data) { - done(_this, er, data); - }); - } else { - done(this, null, null); - } -} - -Transform.prototype.push = function (chunk, encoding) { - this._transformState.needTransform = false; - return Duplex.prototype.push.call(this, chunk, encoding); -}; - -// This is the part where you do stuff! -// override this function in implementation classes. -// 'chunk' is an input chunk. -// -// Call `push(newChunk)` to pass along transformed output -// to the readable side. You may call 'push' zero or more times. -// -// Call `cb(err)` when you are done with this chunk. If you pass -// an error, then that'll put the hurt on the whole operation. If you -// never call cb(), then you'll never get another chunk. -Transform.prototype._transform = function (chunk, encoding, cb) { - throw new Error('_transform() is not implemented'); -}; - -Transform.prototype._write = function (chunk, encoding, cb) { - var ts = this._transformState; - ts.writecb = cb; - ts.writechunk = chunk; - ts.writeencoding = encoding; - if (!ts.transforming) { - var rs = this._readableState; - if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); - } -}; - -// Doesn't matter what the args are here. -// _transform does all the work. -// That we got here means that the readable side wants more data. -Transform.prototype._read = function (n) { - var ts = this._transformState; - - if (ts.writechunk !== null && ts.writecb && !ts.transforming) { - ts.transforming = true; - this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); - } else { - // mark that we need a transform, so that any data that comes in - // will get processed, now that we've asked for it. - ts.needTransform = true; - } -}; - -Transform.prototype._destroy = function (err, cb) { - var _this2 = this; - - Duplex.prototype._destroy.call(this, err, function (err2) { - cb(err2); - _this2.emit('close'); - }); -}; - -function done(stream, er, data) { - if (er) return stream.emit('error', er); - - if (data != null) // single equals check for both `null` and `undefined` - stream.push(data); - - // if there's nothing in the write buffer, then that means - // that nothing more will ever be provided - if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0'); - - if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming'); - - return stream.push(null); -} -},{"11":11,"14":14,"19":19}],23:[function(_dereq_,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// A bit simpler than readable streams. -// Implement an async ._write(chunk, encoding, cb), and it'll handle all -// the drain event emission and buffering. - -'use strict'; - -/**/ - -var pna = _dereq_(16); -/**/ - -module.exports = Writable; - -/* */ -function WriteReq(chunk, encoding, cb) { - this.chunk = chunk; - this.encoding = encoding; - this.callback = cb; - this.next = null; -} - -// It seems a linked list but it is not -// there will be only 2 of these for each stream -function CorkedRequest(state) { - var _this = this; - - this.next = null; - this.entry = null; - this.finish = function () { - onCorkedFinish(_this, state); - }; -} -/* */ - -/**/ -var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick; -/**/ - -/**/ -var Duplex; -/**/ - -Writable.WritableState = WritableState; - -/**/ -var util = _dereq_(11); -util.inherits = _dereq_(14); -/**/ - -/**/ -var internalUtil = { - deprecate: _dereq_(36) -}; -/**/ - -/**/ -var Stream = _dereq_(26); -/**/ - -/**/ - -var Buffer = _dereq_(33).Buffer; -var OurUint8Array = global.Uint8Array || function () {}; -function _uint8ArrayToBuffer(chunk) { - return Buffer.from(chunk); -} -function _isUint8Array(obj) { - return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; -} - -/**/ - -var destroyImpl = _dereq_(25); - -util.inherits(Writable, Stream); - -function nop() {} - -function WritableState(options, stream) { - Duplex = Duplex || _dereq_(19); - - options = options || {}; - - // Duplex streams are both readable and writable, but share - // the same options object. - // However, some cases require setting options to different - // values for the readable and the writable sides of the duplex stream. - // These options can be provided separately as readableXXX and writableXXX. - var isDuplex = stream instanceof Duplex; - - // object stream flag to indicate whether or not this stream - // contains buffers or objects. - this.objectMode = !!options.objectMode; - - if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; - - // the point at which write() starts returning false - // Note: 0 is a valid value, means that we always return false if - // the entire buffer is not flushed immediately on write() - var hwm = options.highWaterMark; - var writableHwm = options.writableHighWaterMark; - var defaultHwm = this.objectMode ? 16 : 16 * 1024; - - if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm; - - // cast to ints. - this.highWaterMark = Math.floor(this.highWaterMark); - - // if _final has been called - this.finalCalled = false; - - // drain event flag. - this.needDrain = false; - // at the start of calling end() - this.ending = false; - // when end() has been called, and returned - this.ended = false; - // when 'finish' is emitted - this.finished = false; - - // has it been destroyed - this.destroyed = false; - - // should we decode strings into buffers before passing to _write? - // this is here so that some node-core streams can optimize string - // handling at a lower level. - var noDecode = options.decodeStrings === false; - this.decodeStrings = !noDecode; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // not an actual buffer we keep track of, but a measurement - // of how much we're waiting to get pushed to some underlying - // socket or file. - this.length = 0; - - // a flag to see when we're in the middle of a write. - this.writing = false; - - // when true all writes will be buffered until .uncork() call - this.corked = 0; - - // a flag to be able to tell if the onwrite cb is called immediately, - // or on a later tick. We set this to true at first, because any - // actions that shouldn't happen until "later" should generally also - // not happen before the first write call. - this.sync = true; - - // a flag to know if we're processing previously buffered items, which - // may call the _write() callback in the same tick, so that we don't - // end up in an overlapped onwrite situation. - this.bufferProcessing = false; - - // the callback that's passed to _write(chunk,cb) - this.onwrite = function (er) { - onwrite(stream, er); - }; - - // the callback that the user supplies to write(chunk,encoding,cb) - this.writecb = null; - - // the amount that is being written when _write is called. - this.writelen = 0; - - this.bufferedRequest = null; - this.lastBufferedRequest = null; - - // number of pending user-supplied write callbacks - // this must be 0 before 'finish' can be emitted - this.pendingcb = 0; - - // emit prefinish if the only thing we're waiting for is _write cbs - // This is relevant for synchronous Transform streams - this.prefinished = false; - - // True if the error was already emitted and should not be thrown again - this.errorEmitted = false; - - // count buffered requests - this.bufferedRequestCount = 0; - - // allocate the first CorkedRequest, there is always - // one allocated and free to use, and we maintain at most two - this.corkedRequestsFree = new CorkedRequest(this); -} - -WritableState.prototype.getBuffer = function getBuffer() { - var current = this.bufferedRequest; - var out = []; - while (current) { - out.push(current); - current = current.next; - } - return out; -}; - -(function () { - try { - Object.defineProperty(WritableState.prototype, 'buffer', { - get: internalUtil.deprecate(function () { - return this.getBuffer(); - }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') - }); - } catch (_) {} -})(); - -// Test _writableState for inheritance to account for Duplex streams, -// whose prototype chain only points to Readable. -var realHasInstance; -if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { - realHasInstance = Function.prototype[Symbol.hasInstance]; - Object.defineProperty(Writable, Symbol.hasInstance, { - value: function (object) { - if (realHasInstance.call(this, object)) return true; - if (this !== Writable) return false; - - return object && object._writableState instanceof WritableState; - } - }); -} else { - realHasInstance = function (object) { - return object instanceof this; - }; -} - -function Writable(options) { - Duplex = Duplex || _dereq_(19); - - // Writable ctor is applied to Duplexes, too. - // `realHasInstance` is necessary because using plain `instanceof` - // would return false, as no `_writableState` property is attached. - - // Trying to use the custom `instanceof` for Writable here will also break the - // Node.js LazyTransform implementation, which has a non-trivial getter for - // `_writableState` that would lead to infinite recursion. - if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) { - return new Writable(options); - } - - this._writableState = new WritableState(options, this); - - // legacy. - this.writable = true; - - if (options) { - if (typeof options.write === 'function') this._write = options.write; - - if (typeof options.writev === 'function') this._writev = options.writev; - - if (typeof options.destroy === 'function') this._destroy = options.destroy; - - if (typeof options.final === 'function') this._final = options.final; - } - - Stream.call(this); -} - -// Otherwise people can pipe Writable streams, which is just wrong. -Writable.prototype.pipe = function () { - this.emit('error', new Error('Cannot pipe, not readable')); -}; - -function writeAfterEnd(stream, cb) { - var er = new Error('write after end'); - // TODO: defer error events consistently everywhere, not just the cb - stream.emit('error', er); - pna.nextTick(cb, er); -} - -// Checks that a user-supplied chunk is valid, especially for the particular -// mode the stream is in. Currently this means that `null` is never accepted -// and undefined/non-string values are only allowed in object mode. -function validChunk(stream, state, chunk, cb) { - var valid = true; - var er = false; - - if (chunk === null) { - er = new TypeError('May not write null values to stream'); - } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); - } - if (er) { - stream.emit('error', er); - pna.nextTick(cb, er); - valid = false; - } - return valid; -} - -Writable.prototype.write = function (chunk, encoding, cb) { - var state = this._writableState; - var ret = false; - var isBuf = !state.objectMode && _isUint8Array(chunk); - - if (isBuf && !Buffer.isBuffer(chunk)) { - chunk = _uint8ArrayToBuffer(chunk); - } - - if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; - - if (typeof cb !== 'function') cb = nop; - - if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { - state.pendingcb++; - ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); - } - - return ret; -}; - -Writable.prototype.cork = function () { - var state = this._writableState; - - state.corked++; -}; - -Writable.prototype.uncork = function () { - var state = this._writableState; - - if (state.corked) { - state.corked--; - - if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); - } -}; - -Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { - // node::ParseEncoding() requires lower case. - if (typeof encoding === 'string') encoding = encoding.toLowerCase(); - if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding); - this._writableState.defaultEncoding = encoding; - return this; -}; - -function decodeChunk(state, chunk, encoding) { - if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { - chunk = Buffer.from(chunk, encoding); - } - return chunk; -} - -Object.defineProperty(Writable.prototype, 'writableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._writableState.highWaterMark; - } -}); - -// if we're already writing something, then just put this -// in the queue, and wait our turn. Otherwise, call _write -// If we return false, then we need a drain event, so set that flag. -function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { - if (!isBuf) { - var newChunk = decodeChunk(state, chunk, encoding); - if (chunk !== newChunk) { - isBuf = true; - encoding = 'buffer'; - chunk = newChunk; - } - } - var len = state.objectMode ? 1 : chunk.length; - - state.length += len; - - var ret = state.length < state.highWaterMark; - // we must ensure that previous needDrain will not be reset to false. - if (!ret) state.needDrain = true; - - if (state.writing || state.corked) { - var last = state.lastBufferedRequest; - state.lastBufferedRequest = { - chunk: chunk, - encoding: encoding, - isBuf: isBuf, - callback: cb, - next: null - }; - if (last) { - last.next = state.lastBufferedRequest; - } else { - state.bufferedRequest = state.lastBufferedRequest; - } - state.bufferedRequestCount += 1; - } else { - doWrite(stream, state, false, len, chunk, encoding, cb); - } - - return ret; -} - -function doWrite(stream, state, writev, len, chunk, encoding, cb) { - state.writelen = len; - state.writecb = cb; - state.writing = true; - state.sync = true; - if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); - state.sync = false; -} - -function onwriteError(stream, state, sync, er, cb) { - --state.pendingcb; - - if (sync) { - // defer the callback if we are being called synchronously - // to avoid piling up things on the stack - pna.nextTick(cb, er); - // this can emit finish, and it will always happen - // after error - pna.nextTick(finishMaybe, stream, state); - stream._writableState.errorEmitted = true; - stream.emit('error', er); - } else { - // the caller expect this to happen before if - // it is async - cb(er); - stream._writableState.errorEmitted = true; - stream.emit('error', er); - // this can emit finish, but finish must - // always follow error - finishMaybe(stream, state); - } -} - -function onwriteStateUpdate(state) { - state.writing = false; - state.writecb = null; - state.length -= state.writelen; - state.writelen = 0; -} - -function onwrite(stream, er) { - var state = stream._writableState; - var sync = state.sync; - var cb = state.writecb; - - onwriteStateUpdate(state); - - if (er) onwriteError(stream, state, sync, er, cb);else { - // Check if we're actually ready to finish, but don't emit yet - var finished = needFinish(state); - - if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { - clearBuffer(stream, state); - } - - if (sync) { - /**/ - asyncWrite(afterWrite, stream, state, finished, cb); - /**/ - } else { - afterWrite(stream, state, finished, cb); - } - } -} - -function afterWrite(stream, state, finished, cb) { - if (!finished) onwriteDrain(stream, state); - state.pendingcb--; - cb(); - finishMaybe(stream, state); -} - -// Must force callback to be called on nextTick, so that we don't -// emit 'drain' before the write() consumer gets the 'false' return -// value, and has a chance to attach a 'drain' listener. -function onwriteDrain(stream, state) { - if (state.length === 0 && state.needDrain) { - state.needDrain = false; - stream.emit('drain'); - } -} - -// if there's something in the buffer waiting, then process it -function clearBuffer(stream, state) { - state.bufferProcessing = true; - var entry = state.bufferedRequest; - - if (stream._writev && entry && entry.next) { - // Fast case, write everything using _writev() - var l = state.bufferedRequestCount; - var buffer = new Array(l); - var holder = state.corkedRequestsFree; - holder.entry = entry; - - var count = 0; - var allBuffers = true; - while (entry) { - buffer[count] = entry; - if (!entry.isBuf) allBuffers = false; - entry = entry.next; - count += 1; - } - buffer.allBuffers = allBuffers; - - doWrite(stream, state, true, state.length, buffer, '', holder.finish); - - // doWrite is almost always async, defer these to save a bit of time - // as the hot path ends with doWrite - state.pendingcb++; - state.lastBufferedRequest = null; - if (holder.next) { - state.corkedRequestsFree = holder.next; - holder.next = null; - } else { - state.corkedRequestsFree = new CorkedRequest(state); - } - state.bufferedRequestCount = 0; - } else { - // Slow case, write chunks one-by-one - while (entry) { - var chunk = entry.chunk; - var encoding = entry.encoding; - var cb = entry.callback; - var len = state.objectMode ? 1 : chunk.length; - - doWrite(stream, state, false, len, chunk, encoding, cb); - entry = entry.next; - state.bufferedRequestCount--; - // if we didn't call the onwrite immediately, then - // it means that we need to wait until it does. - // also, that means that the chunk and cb are currently - // being processed, so move the buffer counter past them. - if (state.writing) { - break; - } - } - - if (entry === null) state.lastBufferedRequest = null; - } - - state.bufferedRequest = entry; - state.bufferProcessing = false; -} - -Writable.prototype._write = function (chunk, encoding, cb) { - cb(new Error('_write() is not implemented')); -}; - -Writable.prototype._writev = null; - -Writable.prototype.end = function (chunk, encoding, cb) { - var state = this._writableState; - - if (typeof chunk === 'function') { - cb = chunk; - chunk = null; - encoding = null; - } else if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); - - // .end() fully uncorks - if (state.corked) { - state.corked = 1; - this.uncork(); - } - - // ignore unnecessary end() calls. - if (!state.ending && !state.finished) endWritable(this, state, cb); -}; - -function needFinish(state) { - return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; -} -function callFinal(stream, state) { - stream._final(function (err) { - state.pendingcb--; - if (err) { - stream.emit('error', err); - } - state.prefinished = true; - stream.emit('prefinish'); - finishMaybe(stream, state); - }); -} -function prefinish(stream, state) { - if (!state.prefinished && !state.finalCalled) { - if (typeof stream._final === 'function') { - state.pendingcb++; - state.finalCalled = true; - pna.nextTick(callFinal, stream, state); - } else { - state.prefinished = true; - stream.emit('prefinish'); - } - } -} - -function finishMaybe(stream, state) { - var need = needFinish(state); - if (need) { - prefinish(stream, state); - if (state.pendingcb === 0) { - state.finished = true; - stream.emit('finish'); - } - } - return need; -} - -function endWritable(stream, state, cb) { - state.ending = true; - finishMaybe(stream, state); - if (cb) { - if (state.finished) pna.nextTick(cb);else stream.once('finish', cb); - } - state.ended = true; - stream.writable = false; -} - -function onCorkedFinish(corkReq, state, err) { - var entry = corkReq.entry; - corkReq.entry = null; - while (entry) { - var cb = entry.callback; - state.pendingcb--; - cb(err); - entry = entry.next; - } - if (state.corkedRequestsFree) { - state.corkedRequestsFree.next = corkReq; - } else { - state.corkedRequestsFree = corkReq; - } -} - -Object.defineProperty(Writable.prototype, 'destroyed', { - get: function () { - if (this._writableState === undefined) { - return false; - } - return this._writableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (!this._writableState) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._writableState.destroyed = value; - } -}); - -Writable.prototype.destroy = destroyImpl.destroy; -Writable.prototype._undestroy = destroyImpl.undestroy; -Writable.prototype._destroy = function (err, cb) { - this.end(); - cb(err); -}; -}).call(this,_dereq_(17),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) - -},{"11":11,"14":14,"16":16,"17":17,"19":19,"25":25,"26":26,"33":33,"36":36}],24:[function(_dereq_,module,exports){ -'use strict'; - -function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } - -var Buffer = _dereq_(33).Buffer; -var util = _dereq_(8); - -function copyBuffer(src, target, offset) { - src.copy(target, offset); -} - -module.exports = function () { - function BufferList() { - _classCallCheck(this, BufferList); - - this.head = null; - this.tail = null; - this.length = 0; - } - - BufferList.prototype.push = function push(v) { - var entry = { data: v, next: null }; - if (this.length > 0) this.tail.next = entry;else this.head = entry; - this.tail = entry; - ++this.length; - }; - - BufferList.prototype.unshift = function unshift(v) { - var entry = { data: v, next: this.head }; - if (this.length === 0) this.tail = entry; - this.head = entry; - ++this.length; - }; - - BufferList.prototype.shift = function shift() { - if (this.length === 0) return; - var ret = this.head.data; - if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; - --this.length; - return ret; - }; - - BufferList.prototype.clear = function clear() { - this.head = this.tail = null; - this.length = 0; - }; - - BufferList.prototype.join = function join(s) { - if (this.length === 0) return ''; - var p = this.head; - var ret = '' + p.data; - while (p = p.next) { - ret += s + p.data; - }return ret; - }; - - BufferList.prototype.concat = function concat(n) { - if (this.length === 0) return Buffer.alloc(0); - if (this.length === 1) return this.head.data; - var ret = Buffer.allocUnsafe(n >>> 0); - var p = this.head; - var i = 0; - while (p) { - copyBuffer(p.data, ret, i); - i += p.data.length; - p = p.next; - } - return ret; - }; - - return BufferList; -}(); - -if (util && util.inspect && util.inspect.custom) { - module.exports.prototype[util.inspect.custom] = function () { - var obj = util.inspect({ length: this.length }); - return this.constructor.name + ' ' + obj; - }; -} -},{"33":33,"8":8}],25:[function(_dereq_,module,exports){ -'use strict'; - -/**/ - -var pna = _dereq_(16); -/**/ - -// undocumented cb() API, needed for core, not for public API -function destroy(err, cb) { - var _this = this; - - var readableDestroyed = this._readableState && this._readableState.destroyed; - var writableDestroyed = this._writableState && this._writableState.destroyed; - - if (readableDestroyed || writableDestroyed) { - if (cb) { - cb(err); - } else if (err && (!this._writableState || !this._writableState.errorEmitted)) { - pna.nextTick(emitErrorNT, this, err); - } - return this; - } - - // we set destroyed to true before firing error callbacks in order - // to make it re-entrance safe in case destroy() is called within callbacks - - if (this._readableState) { - this._readableState.destroyed = true; - } - - // if this is a duplex stream mark the writable part as destroyed as well - if (this._writableState) { - this._writableState.destroyed = true; - } - - this._destroy(err || null, function (err) { - if (!cb && err) { - pna.nextTick(emitErrorNT, _this, err); - if (_this._writableState) { - _this._writableState.errorEmitted = true; - } - } else if (cb) { - cb(err); - } - }); - - return this; -} - -function undestroy() { - if (this._readableState) { - this._readableState.destroyed = false; - this._readableState.reading = false; - this._readableState.ended = false; - this._readableState.endEmitted = false; - } - - if (this._writableState) { - this._writableState.destroyed = false; - this._writableState.ended = false; - this._writableState.ending = false; - this._writableState.finished = false; - this._writableState.errorEmitted = false; - } -} - -function emitErrorNT(self, err) { - self.emit('error', err); -} - -module.exports = { - destroy: destroy, - undestroy: undestroy -}; -},{"16":16}],26:[function(_dereq_,module,exports){ -module.exports = _dereq_(12).EventEmitter; - -},{"12":12}],27:[function(_dereq_,module,exports){ -arguments[4][10][0].apply(exports,arguments) -},{"10":10}],28:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -'use strict'; - -/**/ - -var Buffer = _dereq_(33).Buffer; -/**/ - -var isEncoding = Buffer.isEncoding || function (encoding) { - encoding = '' + encoding; - switch (encoding && encoding.toLowerCase()) { - case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw': - return true; - default: - return false; - } -}; - -function _normalizeEncoding(enc) { - if (!enc) return 'utf8'; - var retried; - while (true) { - switch (enc) { - case 'utf8': - case 'utf-8': - return 'utf8'; - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return 'utf16le'; - case 'latin1': - case 'binary': - return 'latin1'; - case 'base64': - case 'ascii': - case 'hex': - return enc; - default: - if (retried) return; // undefined - enc = ('' + enc).toLowerCase(); - retried = true; - } - } -}; - -// Do not cache `Buffer.isEncoding` when checking encoding names as some -// modules monkey-patch it to support additional encodings -function normalizeEncoding(enc) { - var nenc = _normalizeEncoding(enc); - if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc); - return nenc || enc; -} - -// StringDecoder provides an interface for efficiently splitting a series of -// buffers into a series of JS strings without breaking apart multi-byte -// characters. -exports.StringDecoder = StringDecoder; -function StringDecoder(encoding) { - this.encoding = normalizeEncoding(encoding); - var nb; - switch (this.encoding) { - case 'utf16le': - this.text = utf16Text; - this.end = utf16End; - nb = 4; - break; - case 'utf8': - this.fillLast = utf8FillLast; - nb = 4; - break; - case 'base64': - this.text = base64Text; - this.end = base64End; - nb = 3; - break; - default: - this.write = simpleWrite; - this.end = simpleEnd; - return; - } - this.lastNeed = 0; - this.lastTotal = 0; - this.lastChar = Buffer.allocUnsafe(nb); -} - -StringDecoder.prototype.write = function (buf) { - if (buf.length === 0) return ''; - var r; - var i; - if (this.lastNeed) { - r = this.fillLast(buf); - if (r === undefined) return ''; - i = this.lastNeed; - this.lastNeed = 0; - } else { - i = 0; - } - if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i); - return r || ''; -}; - -StringDecoder.prototype.end = utf8End; - -// Returns only complete characters in a Buffer -StringDecoder.prototype.text = utf8Text; - -// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer -StringDecoder.prototype.fillLast = function (buf) { - if (this.lastNeed <= buf.length) { - buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed); - return this.lastChar.toString(this.encoding, 0, this.lastTotal); - } - buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length); - this.lastNeed -= buf.length; -}; - -// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a -// continuation byte. If an invalid byte is detected, -2 is returned. -function utf8CheckByte(byte) { - if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4; - return byte >> 6 === 0x02 ? -1 : -2; -} - -// Checks at most 3 bytes at the end of a Buffer in order to detect an -// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4) -// needed to complete the UTF-8 character (if applicable) are returned. -function utf8CheckIncomplete(self, buf, i) { - var j = buf.length - 1; - if (j < i) return 0; - var nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) self.lastNeed = nb - 1; - return nb; - } - if (--j < i || nb === -2) return 0; - nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) self.lastNeed = nb - 2; - return nb; - } - if (--j < i || nb === -2) return 0; - nb = utf8CheckByte(buf[j]); - if (nb >= 0) { - if (nb > 0) { - if (nb === 2) nb = 0;else self.lastNeed = nb - 3; - } - return nb; - } - return 0; -} - -// Validates as many continuation bytes for a multi-byte UTF-8 character as -// needed or are available. If we see a non-continuation byte where we expect -// one, we "replace" the validated continuation bytes we've seen so far with -// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding -// behavior. The continuation byte check is included three times in the case -// where all of the continuation bytes for a character exist in the same buffer. -// It is also done this way as a slight performance increase instead of using a -// loop. -function utf8CheckExtraBytes(self, buf, p) { - if ((buf[0] & 0xC0) !== 0x80) { - self.lastNeed = 0; - return '\ufffd'; - } - if (self.lastNeed > 1 && buf.length > 1) { - if ((buf[1] & 0xC0) !== 0x80) { - self.lastNeed = 1; - return '\ufffd'; - } - if (self.lastNeed > 2 && buf.length > 2) { - if ((buf[2] & 0xC0) !== 0x80) { - self.lastNeed = 2; - return '\ufffd'; - } - } - } -} - -// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer. -function utf8FillLast(buf) { - var p = this.lastTotal - this.lastNeed; - var r = utf8CheckExtraBytes(this, buf, p); - if (r !== undefined) return r; - if (this.lastNeed <= buf.length) { - buf.copy(this.lastChar, p, 0, this.lastNeed); - return this.lastChar.toString(this.encoding, 0, this.lastTotal); - } - buf.copy(this.lastChar, p, 0, buf.length); - this.lastNeed -= buf.length; -} - -// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a -// partial character, the character's bytes are buffered until the required -// number of bytes are available. -function utf8Text(buf, i) { - var total = utf8CheckIncomplete(this, buf, i); - if (!this.lastNeed) return buf.toString('utf8', i); - this.lastTotal = total; - var end = buf.length - (total - this.lastNeed); - buf.copy(this.lastChar, 0, end); - return buf.toString('utf8', i, end); -} - -// For UTF-8, a replacement character is added when ending on a partial -// character. -function utf8End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) return r + '\ufffd'; - return r; -} - -// UTF-16LE typically needs two bytes per character, but even if we have an even -// number of bytes available, we need to check if we end on a leading/high -// surrogate. In that case, we need to wait for the next two bytes in order to -// decode the last character properly. -function utf16Text(buf, i) { - if ((buf.length - i) % 2 === 0) { - var r = buf.toString('utf16le', i); - if (r) { - var c = r.charCodeAt(r.length - 1); - if (c >= 0xD800 && c <= 0xDBFF) { - this.lastNeed = 2; - this.lastTotal = 4; - this.lastChar[0] = buf[buf.length - 2]; - this.lastChar[1] = buf[buf.length - 1]; - return r.slice(0, -1); - } - } - return r; - } - this.lastNeed = 1; - this.lastTotal = 2; - this.lastChar[0] = buf[buf.length - 1]; - return buf.toString('utf16le', i, buf.length - 1); -} - -// For UTF-16LE we do not explicitly append special replacement characters if we -// end on a partial character, we simply let v8 handle that. -function utf16End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) { - var end = this.lastTotal - this.lastNeed; - return r + this.lastChar.toString('utf16le', 0, end); - } - return r; -} - -function base64Text(buf, i) { - var n = (buf.length - i) % 3; - if (n === 0) return buf.toString('base64', i); - this.lastNeed = 3 - n; - this.lastTotal = 3; - if (n === 1) { - this.lastChar[0] = buf[buf.length - 1]; - } else { - this.lastChar[0] = buf[buf.length - 2]; - this.lastChar[1] = buf[buf.length - 1]; - } - return buf.toString('base64', i, buf.length - n); -} - -function base64End(buf) { - var r = buf && buf.length ? this.write(buf) : ''; - if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed); - return r; -} - -// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex) -function simpleWrite(buf) { - return buf.toString(this.encoding); -} - -function simpleEnd(buf) { - return buf && buf.length ? this.write(buf) : ''; -} -},{"33":33}],29:[function(_dereq_,module,exports){ -module.exports = _dereq_(30).PassThrough - -},{"30":30}],30:[function(_dereq_,module,exports){ -exports = module.exports = _dereq_(21); -exports.Stream = exports; -exports.Readable = exports; -exports.Writable = _dereq_(23); -exports.Duplex = _dereq_(19); -exports.Transform = _dereq_(22); -exports.PassThrough = _dereq_(20); - -},{"19":19,"20":20,"21":21,"22":22,"23":23}],31:[function(_dereq_,module,exports){ -module.exports = _dereq_(30).Transform - -},{"30":30}],32:[function(_dereq_,module,exports){ -module.exports = _dereq_(23); - -},{"23":23}],33:[function(_dereq_,module,exports){ -/* eslint-disable node/no-deprecated-api */ -var buffer = _dereq_(9) -var Buffer = buffer.Buffer - -// alternative to using Object.keys for old browsers -function copyProps (src, dst) { - for (var key in src) { - dst[key] = src[key] - } -} -if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { - module.exports = buffer -} else { - // Copy properties from require('buffer') - copyProps(buffer, exports) - exports.Buffer = SafeBuffer -} - -function SafeBuffer (arg, encodingOrOffset, length) { - return Buffer(arg, encodingOrOffset, length) -} - -// Copy static methods from Buffer -copyProps(Buffer, SafeBuffer) - -SafeBuffer.from = function (arg, encodingOrOffset, length) { - if (typeof arg === 'number') { - throw new TypeError('Argument must not be a number') - } - return Buffer(arg, encodingOrOffset, length) -} - -SafeBuffer.alloc = function (size, fill, encoding) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - var buf = Buffer(size) - if (fill !== undefined) { - if (typeof encoding === 'string') { - buf.fill(fill, encoding) - } else { - buf.fill(fill) - } - } else { - buf.fill(0) - } - return buf -} - -SafeBuffer.allocUnsafe = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return Buffer(size) -} - -SafeBuffer.allocUnsafeSlow = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return buffer.SlowBuffer(size) -} - -},{"9":9}],34:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -module.exports = Stream; - -var EE = _dereq_(12).EventEmitter; -var inherits = _dereq_(14); - -inherits(Stream, EE); -Stream.Readable = _dereq_(30); -Stream.Writable = _dereq_(32); -Stream.Duplex = _dereq_(18); -Stream.Transform = _dereq_(31); -Stream.PassThrough = _dereq_(29); - -// Backwards-compat with node 0.4.x -Stream.Stream = Stream; - - - -// old-style streams. Note that the pipe method (the only relevant -// part of this class) is overridden in the Readable class. - -function Stream() { - EE.call(this); -} - -Stream.prototype.pipe = function(dest, options) { - var source = this; - - function ondata(chunk) { - if (dest.writable) { - if (false === dest.write(chunk) && source.pause) { - source.pause(); - } - } - } - - source.on('data', ondata); - - function ondrain() { - if (source.readable && source.resume) { - source.resume(); - } - } - - dest.on('drain', ondrain); - - // If the 'end' option is not supplied, dest.end() will be called when - // source gets the 'end' or 'close' events. Only dest.end() once. - if (!dest._isStdio && (!options || options.end !== false)) { - source.on('end', onend); - source.on('close', onclose); - } - - var didOnEnd = false; - function onend() { - if (didOnEnd) return; - didOnEnd = true; - - dest.end(); - } - - - function onclose() { - if (didOnEnd) return; - didOnEnd = true; - - if (typeof dest.destroy === 'function') dest.destroy(); - } - - // don't leave dangling pipes when there are errors. - function onerror(er) { - cleanup(); - if (EE.listenerCount(this, 'error') === 0) { - throw er; // Unhandled stream error in pipe. - } - } - - source.on('error', onerror); - dest.on('error', onerror); - - // remove all the event listeners that were added. - function cleanup() { - source.removeListener('data', ondata); - dest.removeListener('drain', ondrain); - - source.removeListener('end', onend); - source.removeListener('close', onclose); - - source.removeListener('error', onerror); - dest.removeListener('error', onerror); - - source.removeListener('end', cleanup); - source.removeListener('close', cleanup); - - dest.removeListener('close', cleanup); - } - - source.on('end', cleanup); - source.on('close', cleanup); - - dest.on('close', cleanup); - - dest.emit('pipe', source); - - // Allow for unix-like usage: A.pipe(B).pipe(C) - return dest; -}; - -},{"12":12,"14":14,"18":18,"29":29,"30":30,"31":31,"32":32}],35:[function(_dereq_,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var Buffer = _dereq_(9).Buffer; - -var isBufferEncoding = Buffer.isEncoding - || function(encoding) { - switch (encoding && encoding.toLowerCase()) { - case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true; - default: return false; - } - } - - -function assertEncoding(encoding) { - if (encoding && !isBufferEncoding(encoding)) { - throw new Error('Unknown encoding: ' + encoding); - } -} - -// StringDecoder provides an interface for efficiently splitting a series of -// buffers into a series of JS strings without breaking apart multi-byte -// characters. CESU-8 is handled as part of the UTF-8 encoding. -// -// @TODO Handling all encodings inside a single object makes it very difficult -// to reason about this code, so it should be split up in the future. -// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code -// points as used by CESU-8. -var StringDecoder = exports.StringDecoder = function(encoding) { - this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, ''); - assertEncoding(encoding); - switch (this.encoding) { - case 'utf8': - // CESU-8 represents each of Surrogate Pair by 3-bytes - this.surrogateSize = 3; - break; - case 'ucs2': - case 'utf16le': - // UTF-16 represents each of Surrogate Pair by 2-bytes - this.surrogateSize = 2; - this.detectIncompleteChar = utf16DetectIncompleteChar; - break; - case 'base64': - // Base-64 stores 3 bytes in 4 chars, and pads the remainder. - this.surrogateSize = 3; - this.detectIncompleteChar = base64DetectIncompleteChar; - break; - default: - this.write = passThroughWrite; - return; - } - - // Enough space to store all bytes of a single character. UTF-8 needs 4 - // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate). - this.charBuffer = new Buffer(6); - // Number of bytes received for the current incomplete multi-byte character. - this.charReceived = 0; - // Number of bytes expected for the current incomplete multi-byte character. - this.charLength = 0; -}; - - -// write decodes the given buffer and returns it as JS string that is -// guaranteed to not contain any partial multi-byte characters. Any partial -// character found at the end of the buffer is buffered up, and will be -// returned when calling write again with the remaining bytes. -// -// Note: Converting a Buffer containing an orphan surrogate to a String -// currently works, but converting a String to a Buffer (via `new Buffer`, or -// Buffer#write) will replace incomplete surrogates with the unicode -// replacement character. See https://codereview.chromium.org/121173009/ . -StringDecoder.prototype.write = function(buffer) { - var charStr = ''; - // if our last write ended with an incomplete multibyte character - while (this.charLength) { - // determine how many remaining bytes this buffer has to offer for this char - var available = (buffer.length >= this.charLength - this.charReceived) ? - this.charLength - this.charReceived : - buffer.length; - - // add the new bytes to the char buffer - buffer.copy(this.charBuffer, this.charReceived, 0, available); - this.charReceived += available; - - if (this.charReceived < this.charLength) { - // still not enough chars in this buffer? wait for more ... - return ''; - } - - // remove bytes belonging to the current character from the buffer - buffer = buffer.slice(available, buffer.length); - - // get the character that was split - charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); - - // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character - var charCode = charStr.charCodeAt(charStr.length - 1); - if (charCode >= 0xD800 && charCode <= 0xDBFF) { - this.charLength += this.surrogateSize; - charStr = ''; - continue; - } - this.charReceived = this.charLength = 0; - - // if there are no more bytes in this buffer, just emit our char - if (buffer.length === 0) { - return charStr; - } - break; - } - - // determine and set charLength / charReceived - this.detectIncompleteChar(buffer); - - var end = buffer.length; - if (this.charLength) { - // buffer the incomplete character bytes we got - buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end); - end -= this.charReceived; - } - - charStr += buffer.toString(this.encoding, 0, end); - - var end = charStr.length - 1; - var charCode = charStr.charCodeAt(end); - // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character - if (charCode >= 0xD800 && charCode <= 0xDBFF) { - var size = this.surrogateSize; - this.charLength += size; - this.charReceived += size; - this.charBuffer.copy(this.charBuffer, size, 0, size); - buffer.copy(this.charBuffer, 0, 0, size); - return charStr.substring(0, end); - } - - // or just emit the charStr - return charStr; -}; - -// detectIncompleteChar determines if there is an incomplete UTF-8 character at -// the end of the given buffer. If so, it sets this.charLength to the byte -// length that character, and sets this.charReceived to the number of bytes -// that are available for this character. -StringDecoder.prototype.detectIncompleteChar = function(buffer) { - // determine how many bytes we have to check at the end of this buffer - var i = (buffer.length >= 3) ? 3 : buffer.length; - - // Figure out if one of the last i bytes of our buffer announces an - // incomplete char. - for (; i > 0; i--) { - var c = buffer[buffer.length - i]; - - // See http://en.wikipedia.org/wiki/UTF-8#Description - - // 110XXXXX - if (i == 1 && c >> 5 == 0x06) { - this.charLength = 2; - break; - } - - // 1110XXXX - if (i <= 2 && c >> 4 == 0x0E) { - this.charLength = 3; - break; - } - - // 11110XXX - if (i <= 3 && c >> 3 == 0x1E) { - this.charLength = 4; - break; - } - } - this.charReceived = i; -}; - -StringDecoder.prototype.end = function(buffer) { - var res = ''; - if (buffer && buffer.length) - res = this.write(buffer); - - if (this.charReceived) { - var cr = this.charReceived; - var buf = this.charBuffer; - var enc = this.encoding; - res += buf.slice(0, cr).toString(enc); - } - - return res; -}; - -function passThroughWrite(buffer) { - return buffer.toString(this.encoding); -} - -function utf16DetectIncompleteChar(buffer) { - this.charReceived = buffer.length % 2; - this.charLength = this.charReceived ? 2 : 0; -} - -function base64DetectIncompleteChar(buffer) { - this.charReceived = buffer.length % 3; - this.charLength = this.charReceived ? 3 : 0; -} - -},{"9":9}],36:[function(_dereq_,module,exports){ -(function (global){ - -/** - * Module exports. - */ - -module.exports = deprecate; - -/** - * Mark that a method should not be used. - * Returns a modified function which warns once by default. - * - * If `localStorage.noDeprecation = true` is set, then it is a no-op. - * - * If `localStorage.throwDeprecation = true` is set, then deprecated functions - * will throw an Error when invoked. - * - * If `localStorage.traceDeprecation = true` is set, then deprecated functions - * will invoke `console.trace()` instead of `console.error()`. - * - * @param {Function} fn - the function to deprecate - * @param {String} msg - the string to print to the console when `fn` is invoked - * @returns {Function} a new "deprecated" version of `fn` - * @api public - */ - -function deprecate (fn, msg) { - if (config('noDeprecation')) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (config('throwDeprecation')) { - throw new Error(msg); - } else if (config('traceDeprecation')) { - console.trace(msg); - } else { - console.warn(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -} - -/** - * Checks `localStorage` for boolean values for the given `name`. - * - * @param {String} name - * @returns {Boolean} - * @api private - */ - -function config (name) { - // accessing global.localStorage can trigger a DOMException in sandboxed iframes - try { - if (!global.localStorage) return false; - } catch (_) { - return false; - } - var val = global.localStorage[name]; - if (null == val) return false; - return String(val).toLowerCase() === 'true'; -} - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) - -},{}],37:[function(_dereq_,module,exports){ -/* - * Copyright (c) 2016, Pierre-Anthony Lemieux - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * @module imscDoc - */ - -; -(function (imscDoc, sax, imscNames, imscStyles, imscUtils) { - - - /** - * Allows a client to provide callbacks to handle children of the element - * @typedef {Object} MetadataHandler - * @property {?OpenTagCallBack} onOpenTag - * @property {?CloseTagCallBack} onCloseTag - * @property {?TextCallBack} onText - */ - - /** - * Called when the opening tag of an element node is encountered. - * @callback OpenTagCallBack - * @param {string} ns Namespace URI of the element - * @param {string} name Local name of the element - * @param {Object[]} attributes List of attributes, each consisting of a - * `uri`, `name` and `value` - */ - - /** - * Called when the closing tag of an element node is encountered. - * @callback CloseTagCallBack - */ - - /** - * Called when a text node is encountered. - * @callback TextCallBack - * @param {string} contents Contents of the text node - */ - - /** - * Parses an IMSC1 document into an opaque in-memory representation that exposes - * a single method 
getMediaTimeEvents()
that returns a list of time - * offsets (in seconds) of the ISD, i.e. the points in time where the visual - * representation of the document change. `metadataHandler` allows the caller to - * be called back when nodes are present in elements. - * - * @param {string} xmlstring XML document - * @param {?module:imscUtils.ErrorHandler} errorHandler Error callback - * @param {?MetadataHandler} metadataHandler Callback for elements - * @returns {Object} Opaque in-memory representation of an IMSC1 document - */ - - imscDoc.fromXML = function (xmlstring, errorHandler, metadataHandler) { - var p = sax.parser(true, {xmlns: true}); - var estack = []; - var xmllangstack = []; - var xmlspacestack = []; - var metadata_depth = 0; - var doc = null; - - p.onclosetag = function (node) { - - if (estack[0] instanceof Styling) { - - /* flatten chained referential styling */ - - for (var sid in estack[0].styles) { - - mergeChainedStyles(estack[0], estack[0].styles[sid], errorHandler); - - } - - } else if (estack[0] instanceof P || estack[0] instanceof Span) { - - /* merge anonymous spans */ - - if (estack[0].contents.length > 1) { - - var cs = [estack[0].contents[0]]; - - var c; - - for (c = 1; c < estack[0].contents.length; c++) { - - if (estack[0].contents[c] instanceof AnonymousSpan && - cs[cs.length - 1] instanceof AnonymousSpan) { - - cs[cs.length - 1].text += estack[0].contents[c].text; - - } else { - - cs.push(estack[0].contents[c]); - - } - - } - - estack[0].contents = cs; - - } - - // remove redundant nested anonymous spans (9.3.3(1)(c)) - - if (estack[0] instanceof Span && - estack[0].contents.length === 1 && - estack[0].contents[0] instanceof AnonymousSpan && - estack[0].text === null) { - - estack[0].text = estack[0].contents[0].text; - delete estack[0].contents; - - } - - } else if (estack[0] instanceof ForeignElement) { - - if (estack[0].node.uri === imscNames.ns_tt && - estack[0].node.local === 'metadata') { - - /* leave the metadata element */ - - metadata_depth--; - - } else if (metadata_depth > 0 && - metadataHandler && - 'onCloseTag' in metadataHandler) { - - /* end of child of metadata element */ - - metadataHandler.onCloseTag(); - - } - - } - - // TODO: delete stylerefs? - - // maintain the xml:space stack - - xmlspacestack.shift(); - - // maintain the xml:lang stack - - xmllangstack.shift(); - - // prepare for the next element - - estack.shift(); - }; - - p.ontext = function (str) { - - if (estack[0] === undefined) { - - /* ignoring text outside of elements */ - - } else if (estack[0] instanceof Span || estack[0] instanceof P) { - - /* create an anonymous span */ - - var s = new AnonymousSpan(); - - s.initFromText(doc, estack[0], str, xmlspacestack[0], errorHandler); - - estack[0].contents.push(s); - - } else if (estack[0] instanceof ForeignElement && - metadata_depth > 0 && - metadataHandler && - 'onText' in metadataHandler) { - - /* text node within a child of metadata element */ - - metadataHandler.onText(str); - - } - - }; - - - p.onopentag = function (node) { - - // maintain the xml:space stack - - var xmlspace = node.attributes["xml:space"]; - - if (xmlspace) { - - xmlspacestack.unshift(xmlspace.value); - - } else { - - if (xmlspacestack.length === 0) { - - xmlspacestack.unshift("default"); - - } else { - - xmlspacestack.unshift(xmlspacestack[0]); - - } - - } - - /* maintain the xml:lang stack */ - - - var xmllang = node.attributes["xml:lang"]; - - if (xmllang) { - - xmllangstack.unshift(xmllang.value); - - } else { - - if (xmllangstack.length === 0) { - - xmllangstack.unshift(""); - - } else { - - xmllangstack.unshift(xmllangstack[0]); - - } - - } - - - /* process the element */ - - if (node.uri === imscNames.ns_tt) { - - if (node.local === 'tt') { - - if (doc !== null) { - - reportFatal("Two elements at (" + this.line + "," + this.column + ")"); - - } - - doc = new TT(); - - doc.initFromNode(node, errorHandler); - - estack.unshift(doc); - - } else if (node.local === 'head') { - - if (!(estack[0] instanceof TT)) { - reportFatal("Parent of element is not at (" + this.line + "," + this.column + ")"); - } - - if (doc.head !== null) { - reportFatal("Second element at (" + this.line + "," + this.column + ")"); - } - - doc.head = new Head(); - - estack.unshift(doc.head); - - } else if (node.local === 'styling') { - - if (!(estack[0] instanceof Head)) { - reportFatal("Parent of element is not at (" + this.line + "," + this.column + ")"); - } - - if (doc.head.styling !== null) { - reportFatal("Second element at (" + this.line + "," + this.column + ")"); - } - - doc.head.styling = new Styling(); - - estack.unshift(doc.head.styling); - - } else if (node.local === 'style') { - - var s; - - if (estack[0] instanceof Styling) { - - s = new Style(); - - s.initFromNode(node, errorHandler); - - /* ignore