200 lines
6.6 KiB
Nim
200 lines
6.6 KiB
Nim
# SPDX-License-Identifier: AGPL-3.0-only
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import strutils, strformat, times, uri, tables, xmltree, htmlparser, htmlgen
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import std/[enumerate, re]
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import types, utils, query
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const
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cards = "cards.twitter.com/cards"
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tco = "https://t.co"
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twitter = parseUri("https://twitter.com")
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let
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twRegex = re"(?<=(?<!\S)https:\/\/|(?<=\s))(www\.|mobile\.)?twitter\.com"
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twLinkRegex = re"""<a href="https:\/\/twitter.com([^"]+)">twitter\.com(\S+)</a>"""
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ytRegex = re(r"([A-z.]+\.)?youtu(be\.com|\.be)", {reStudy, reIgnoreCase})
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rdRegex = re"(?<![.b])((www|np|new|amp|old)\.)?reddit.com"
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rdShortRegex = re"(?<![.b])redd\.it\/"
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# Videos cannot be supported uniformly between Teddit and Libreddit,
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# so v.redd.it links will not be replaced.
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# Images aren't supported due to errors from Teddit when the image
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# wasn't first displayed via a post on the Teddit instance.
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imgurRegex = re"((i|i.stack)\.)?imgur\.(com|io)"
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mediumRegex = re"([a-zA-Z0-9_.-]+\.)?medium\.com"
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wwwRegex = re"https?://(www[0-9]?\.)?"
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m3u8Regex = re"""url="(.+.m3u8)""""
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userPicRegex = re"_(normal|bigger|mini|200x200|400x400)(\.[A-z]+)$"
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extRegex = re"(\.[A-z]+)$"
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illegalXmlRegex = re"(*UTF8)[^\x09\x0A\x0D\x20-\x{D7FF}\x{E000}-\x{FFFD}\x{10000}-\x{10FFFF}]"
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proc getUrlPrefix*(cfg: Config): string =
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if cfg.useHttps: https & cfg.hostname
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else: "http://" & cfg.hostname
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proc shortLink*(text: string; length=28): string =
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result = text.replace(wwwRegex, "")
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if result.len > length:
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result = result[0 ..< length] & "…"
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proc stripHtml*(text: string; shorten=false): string =
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var html = parseHtml(text)
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for el in html.findAll("a"):
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let link = el.attr("href")
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if "http" in link:
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if el.len == 0: continue
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el[0].text =
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if shorten: link.shortLink
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else: link
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html.innerText()
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proc sanitizeXml*(text: string): string =
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text.replace(illegalXmlRegex, "")
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proc replaceUrls*(body: string; prefs: Prefs; absolute=""): string =
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result = body
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if prefs.replaceYouTube.len > 0 and "youtu" in result:
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result = result.replace(ytRegex, prefs.replaceYouTube)
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if prefs.replaceTwitter.len > 0 and ("twitter.com" in body or tco in body):
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result = result.replace(tco, https & prefs.replaceTwitter & "/t.co")
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result = result.replace(cards, prefs.replaceTwitter & "/cards")
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result = result.replace(twRegex, prefs.replaceTwitter)
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result = result.replacef(twLinkRegex, a(
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prefs.replaceTwitter & "$2", href = https & prefs.replaceTwitter & "$1"))
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if prefs.replaceReddit.len > 0 and ("reddit.com" in result or "redd.it" in result):
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result = result.replace(rdShortRegex, prefs.replaceReddit & "/comments/")
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result = result.replace(rdRegex, prefs.replaceReddit)
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if prefs.replaceReddit in result and "/gallery/" in result:
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result = result.replace("/gallery/", "/comments/")
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if prefs.replaceImgur.len > 0 and "imgur" in result:
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result = result.replace(imgurRegex, prefs.replaceImgur)
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if prefs.replaceMedium.len > 0 and "medium.com" in result:
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result = result.replace(mediumRegex, prefs.replaceMedium)
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if absolute.len > 0 and "href" in result:
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result = result.replace("href=\"/", &"href=\"{absolute}/")
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proc getM3u8Url*(content: string): string =
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var matches: array[1, string]
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if re.find(content, m3u8Regex, matches) != -1:
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result = matches[0]
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proc proxifyVideo*(manifest: string; proxy: bool): string =
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var replacements: seq[(string, string)]
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for line in manifest.splitLines:
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let url =
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if line.startsWith("#EXT-X-MAP:URI"): line[16 .. ^2]
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elif line.startsWith("#EXT-X-MEDIA") and "URI=" in line:
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line[line.find("URI=") + 5 .. -1 + line.find("\"", start= 5 + line.find("URI="))]
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else: line
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if url.startsWith('/'):
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let path = "https://video.twimg.com" & url
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replacements.add (url, if proxy: path.getVidUrl else: path)
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return manifest.multiReplace(replacements)
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proc getUserPic*(userPic: string; style=""): string =
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userPic.replacef(userPicRegex, "$2").replacef(extRegex, style & "$1")
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proc getUserPic*(user: User; style=""): string =
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getUserPic(user.userPic, style)
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proc getVideoEmbed*(cfg: Config; id: int64): string =
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&"{getUrlPrefix(cfg)}/i/videos/{id}"
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proc pageTitle*(user: User): string =
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&"{user.fullname} (@{user.username})"
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proc pageTitle*(tweet: Tweet): string =
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&"{pageTitle(tweet.user)}: \"{stripHtml(tweet.text)}\""
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proc pageDesc*(user: User): string =
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if user.bio.len > 0:
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stripHtml(user.bio)
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else:
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"The latest tweets from " & user.fullname
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proc getJoinDate*(user: User): string =
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user.joinDate.format("'Joined' MMMM YYYY")
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proc getJoinDateFull*(user: User): string =
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user.joinDate.format("h:mm tt - d MMM YYYY")
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proc getTime*(tweet: Tweet): string =
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tweet.time.format("MMM d', 'YYYY' · 'h:mm tt' UTC'")
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proc getRfc822Time*(tweet: Tweet): string =
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tweet.time.format("ddd', 'dd MMM yyyy HH:mm:ss 'GMT'")
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proc getShortTime*(tweet: Tweet): string =
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let now = now()
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let since = now - tweet.time
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if now.year != tweet.time.year:
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result = tweet.time.format("d MMM yyyy")
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elif since.inDays >= 1:
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result = tweet.time.format("MMM d")
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elif since.inHours >= 1:
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result = $since.inHours & "h"
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elif since.inMinutes >= 1:
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result = $since.inMinutes & "m"
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elif since.inSeconds > 1:
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result = $since.inSeconds & "s"
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else:
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result = "now"
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proc getLink*(tweet: Tweet; focus=true): string =
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if tweet.id == 0: return
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var username = tweet.user.username
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if username.len == 0:
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username = "i"
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result = &"/{username}/status/{tweet.id}"
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if focus: result &= "#m"
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proc getTwitterLink*(path: string; params: Table[string, string]): string =
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var
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username = params.getOrDefault("name")
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query = initQuery(params, username)
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path = path
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if "," in username:
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query.fromUser = username.split(",")
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path = "/search"
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if "/search" notin path and query.fromUser.len < 2:
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return $(twitter / path)
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let p = {
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"f": if query.kind == users: "user" else: "live",
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"q": genQueryParam(query),
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"src": "typed_query"
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}
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result = $(twitter / path ? p)
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if username.len > 0:
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result = result.replace("/" & username, "")
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proc getLocation*(u: User | Tweet): (string, string) =
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if "://" in u.location: return (u.location, "")
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let loc = u.location.split(":")
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let url = if loc.len > 1: "/search?q=place:" & loc[1] else: ""
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(loc[0], url)
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proc getSuspended*(username: string): string =
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&"User \"{username}\" has been suspended"
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proc titleize*(str: string): string =
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const
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lowercase = {'a'..'z'}
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delims = {' ', '('}
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result = str
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for i, c in enumerate(str):
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if c in lowercase and (i == 0 or str[i - 1] in delims):
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result[i] = c.toUpperAscii
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