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Hinnant date library added
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moneroexamples
parent
996ce2c847
commit
a2c3c575ba
10 changed files with 13724 additions and 1 deletions
405
ext/date/ios.mm
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405
ext/date/ios.mm
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//
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// The MIT License (MIT)
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//
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// Copyright (c) 2016 Alexander Kormanovsky
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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#include "ios.h"
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#if TARGET_OS_IPHONE
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#include <Foundation/Foundation.h>
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#include <iostream>
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#include <zlib.h>
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#include <sys/stat.h>
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#ifndef TAR_DEBUG
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# define TAR_DEBUG 0
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#endif
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#define INTERNAL_DIR "Library/tzdata"
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#define TARGZ_EXTENSION "tar.gz"
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#define TAR_BLOCK_SIZE 512
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#define TAR_TYPE_POSITION 156
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#define TAR_NAME_POSITION 0
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#define TAR_NAME_SIZE 100
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#define TAR_SIZE_POSITION 124
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#define TAR_SIZE_SIZE 12
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namespace date
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{
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namespace iOSUtils
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{
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struct TarInfo
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{
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char objType;
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std::string objName;
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int64_t realContentSize; // writable size without padding zeroes
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int64_t blocksContentSize; // adjusted size to 512 bytes blocks
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bool success;
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};
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char* convertCFStringRefPathToCStringPath(CFStringRef ref);
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bool extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath);
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TarInfo getTarObjectInfo(CFReadStreamRef readStream, int64_t location);
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std::string getTarObject(CFReadStreamRef readStream, int64_t size);
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bool writeFile(CFURLRef tzdataUrl, std::string fileName, std::string data,
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int64_t realContentSize);
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std::string
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date::iOSUtils::get_tzdata_path()
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{
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CFURLRef ref = CFCopyHomeDirectoryURL();
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CFStringRef homePath = CFURLCopyPath(CFCopyHomeDirectoryURL());
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std::string tzdata_path(std::string(convertCFStringRefPathToCStringPath(homePath)) +
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INTERNAL_DIR);
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if (access(tzdata_path.c_str(), F_OK) == 0)
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{
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#if TAR_DEBUG
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printf("tzdata exists\n");
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#endif
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return tzdata_path;
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}
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CFBundleRef mainBundle = CFBundleGetMainBundle();
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CFArrayRef paths = CFBundleCopyResourceURLsOfType(mainBundle, CFSTR(TARGZ_EXTENSION),
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NULL);
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if (CFArrayGetCount(paths) != 0)
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{
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// get archive path, assume there is no other tar.gz in bundle
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CFURLRef archiveUrl = static_cast<CFURLRef>(CFArrayGetValueAtIndex(paths, 0));
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CFStringRef archiveName= CFURLCopyPath(archiveUrl);
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archiveUrl = CFBundleCopyResourceURL(mainBundle, archiveName, NULL, NULL);
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extractTzdata(CFCopyHomeDirectoryURL(), archiveUrl, tzdata_path);
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}
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return tzdata_path;
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}
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char*
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convertCFStringRefPathToCStringPath(CFStringRef ref)
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{
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CFIndex bufferSize = CFStringGetMaximumSizeOfFileSystemRepresentation(ref);
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char *buffer = new char[bufferSize];
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CFStringGetFileSystemRepresentation(ref, buffer, bufferSize);
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return buffer;
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}
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bool extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath)
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{
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const char *TAR_TMP_PATH = "/tmp.tar";
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// create Library path
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CFStringRef libraryStr = CFStringCreateWithCString(NULL, "Library",
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CFStringGetSystemEncoding());
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CFURLRef libraryUrl = CFURLCreateCopyAppendingPathComponent(kCFAllocatorDefault,
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homeUrl, libraryStr,
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false);
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// create tzdata path
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CFStringRef tzdataPathRef = CFStringCreateWithCString(NULL, INTERNAL_DIR,
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CFStringGetSystemEncoding());
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CFURLRef tzdataPathUrl = CFURLCreateCopyAppendingPathComponent(NULL, homeUrl,
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tzdataPathRef, false);
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// create src archive path
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CFStringRef archivePath = CFURLCopyPath(archiveUrl);
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gzFile tarFile = gzopen(convertCFStringRefPathToCStringPath(archivePath), "rb");
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// create tar unpacking path
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CFStringRef tarName = CFStringCreateWithCString(NULL, TAR_TMP_PATH,
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CFStringGetSystemEncoding());
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CFURLRef tarUrl = CFURLCreateCopyAppendingPathComponent(NULL, libraryUrl, tarName,
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false);
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const char *tarPath = convertCFStringRefPathToCStringPath(CFURLCopyPath(tarUrl));
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// create tzdata directory
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mkdir(destPath.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
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// create stream
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CFWriteStreamRef writeStream = CFWriteStreamCreateWithFile(NULL, tarUrl);
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bool success = true;
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if (!CFWriteStreamOpen(writeStream))
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{
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CFStreamError err = CFWriteStreamGetError(writeStream);
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if (err.domain == kCFStreamErrorDomainPOSIX)
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{
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printf("kCFStreamErrorDomainPOSIX %i\n", err.error);
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}
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else if(err.domain == kCFStreamErrorDomainMacOSStatus)
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{
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printf("kCFStreamErrorDomainMacOSStatus %i\n", err.error);
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}
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success = false;
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}
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if (!success)
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{
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remove(tarPath);
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return false;
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}
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// ======= extract tar ========
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unsigned int bufferLength = 1024 * 256; // 256Kb
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void *buffer = malloc(bufferLength);
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while (true)
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{
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int readBytes = gzread(tarFile, buffer, bufferLength);
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if (readBytes > 0)
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{
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CFIndex writtenBytes = CFWriteStreamWrite(writeStream, (unsigned char*)buffer,
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readBytes);
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if (writtenBytes < 0)
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{
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CFStreamError err = CFWriteStreamGetError(writeStream);
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printf("write stream error %i\n", err.error);
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success = false;
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break;
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}
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}
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else if (readBytes == 0)
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{
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break;
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}
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else if (readBytes == -1)
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{
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printf("decompression failed\n");
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success = false;
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break;
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}
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else
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{
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printf("unexpected zlib state\n");
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success = false;
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break;
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}
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}
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CFWriteStreamClose(writeStream);
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CFRelease(writeStream);
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free(buffer);
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gzclose(tarFile);
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if (!success)
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{
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remove(tarPath);
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return false;
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}
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// ======== extract files =========
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uint64_t location = 0; // Position in the file
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// get file size
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struct stat stat_buf;
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int res = stat(tarPath, &stat_buf);
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if (res != 0)
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{
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printf("error file size\n");
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remove(tarPath);
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return false;
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}
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int64_t tarSize = stat_buf.st_size;
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// create read stream
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CFReadStreamRef readStream = CFReadStreamCreateWithFile(kCFAllocatorDefault, tarUrl);
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if (!CFReadStreamOpen(readStream))
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{
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CFStreamError err = CFReadStreamGetError(readStream);
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if (err.domain == kCFStreamErrorDomainPOSIX)
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{
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printf("kCFStreamErrorDomainPOSIX %i", err.error);
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}
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else if(err.domain == kCFStreamErrorDomainMacOSStatus)
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{
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printf("kCFStreamErrorDomainMacOSStatus %i", err.error);
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}
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success = false;
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}
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if (!success)
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{
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CFRelease(readStream);
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remove(tarPath);
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return false;
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}
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int count = 0;
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long size = 0;
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// process files
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while (location < tarSize)
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{
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TarInfo info = getTarObjectInfo(readStream, location);
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if (!info.success || info.realContentSize == 0)
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{
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break; // something wrong or all files are read
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}
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switch (info.objType)
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{
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case '0': // file
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case '\0': //
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{
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std::string obj = getTarObject(readStream, info.blocksContentSize);
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#if TAR_DEBUG
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size += info.realContentSize;
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printf("#%i %s file size %lld written total %ld from %lld\n", ++count,
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info.objName.c_str(), info.realContentSize, size, tarSize);
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#endif
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writeFile(tzdataPathUrl, info.objName, obj, info.realContentSize);
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location += info.blocksContentSize;
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break;
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}
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}
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}
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CFReadStreamClose(readStream);
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CFRelease(readStream);
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remove(tarPath);
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return true;
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}
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TarInfo
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getTarObjectInfo(CFReadStreamRef readStream, int64_t location)
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{
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int64_t length = TAR_BLOCK_SIZE;
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uint8_t buffer[length];
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char type;
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char name[TAR_NAME_SIZE + 1];
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char sizeBuf[TAR_SIZE_SIZE + 1];
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CFIndex bytesRead;
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bool avail = CFReadStreamHasBytesAvailable(readStream);
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bytesRead = CFReadStreamRead(readStream, buffer, length);
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if (bytesRead < 0)
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{
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CFStreamError err = CFReadStreamGetError(readStream);
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printf("error reading tar object info %i", err.error);
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return {false};
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}
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memcpy(&type, &buffer[TAR_TYPE_POSITION], 1);
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memset(&name, '\0', TAR_NAME_SIZE + 1);
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memcpy(&name, &buffer[TAR_NAME_POSITION], TAR_NAME_SIZE);
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memset(&sizeBuf, '\0', TAR_SIZE_SIZE + 1);
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memcpy(&sizeBuf, &buffer[TAR_SIZE_POSITION], TAR_SIZE_SIZE);
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int64_t realSize = strtol(sizeBuf, NULL, 8);
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int64_t blocksSize = realSize + (TAR_BLOCK_SIZE - (realSize % TAR_BLOCK_SIZE));
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return {type, std::string(name), realSize, blocksSize, true};
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}
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std::string
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getTarObject(CFReadStreamRef readStream, int64_t size)
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{
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uint8_t buffer[size];
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CFIndex bytesRead = CFReadStreamRead(readStream, buffer, size);
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if (bytesRead < 0)
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{
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CFStreamError err = CFReadStreamGetError(readStream);
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printf("error reading tar object info %i", err.error);
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}
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return std::string((char *)buffer);
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}
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bool
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writeFile(CFURLRef tzdataUrl, std::string fileName, std::string data,
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int64_t realContentSize)
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{
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// create stream
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CFStringRef fileNameRef = CFStringCreateWithCString(NULL, fileName.c_str(),
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CFStringGetSystemEncoding());
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CFURLRef url = CFURLCreateCopyAppendingPathComponent(NULL, tzdataUrl, fileNameRef,
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false);
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CFWriteStreamRef writeStream = CFWriteStreamCreateWithFile(NULL, url);
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// open stream
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if (!CFWriteStreamOpen(writeStream))
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{
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CFStreamError err = CFWriteStreamGetError(writeStream);
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if (err.domain == kCFStreamErrorDomainPOSIX)
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{
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printf("kCFStreamErrorDomainPOSIX %i\n", err.error);
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}
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else if(err.domain == kCFStreamErrorDomainMacOSStatus)
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{
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printf("kCFStreamErrorDomainMacOSStatus %i\n", err.error);
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}
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CFRelease(writeStream);
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return false;
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}
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// trim empty space
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uint8_t trimmedData[realContentSize + 1];
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memset(&trimmedData, '\0', realContentSize);
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memcpy(&trimmedData, data.c_str(), realContentSize);
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// write
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CFIndex writtenBytes = CFWriteStreamWrite(writeStream, trimmedData, realContentSize);
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if (writtenBytes < 0)
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{
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CFStreamError err = CFWriteStreamGetError(writeStream);
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printf("write stream error %i\n", err.error);
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}
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CFWriteStreamClose(writeStream);
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CFRelease(writeStream);
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writeStream = NULL;
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return true;
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}
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} // namespace iOSUtils
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} // namespace date
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#endif // TARGET_OS_IPHONE
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