From: Joseph Nuthalapati <njoseph@riseup.net>
Date: Fri, 5 Jun 2020 18:50:08 +0000 (+0530)
Subject: Add config option to rewrite invidio.us URLs
X-Git-Tag: 0.5.0~9
X-Git-Url: https://njoseph.me/gitweb/nimcoon.git/commitdiff_plain/b44b64940a9a5708a58decce73634c81ef0b9783

Add config option to rewrite invidio.us URLs
---

diff --git a/src/config.nim b/src/config.nim
index 3593fe6..de8be3f 100644
--- a/src/config.nim
+++ b/src/config.nim
@@ -12,3 +12,7 @@ let videoDownloadDirectory* = "~/Videos"
 
 # Download music to this directory
 let musicDownloadDirectory* = "~/Music"
+
+# Rewrite Invidious URLs to YouTube
+# Using Invidious as a proxy makes loading YouTube videos much slower
+let rewriteInvidiousURLs* = false
diff --git a/src/lib.nim b/src/lib.nim
index 62d0553..ccd1a39 100644
--- a/src/lib.nim
+++ b/src/lib.nim
@@ -18,6 +18,7 @@ import
 
 import config
 
+
 type
   Options* = Table[string, bool]
   SearchResult* = tuple[title: string, url: string]
@@ -25,13 +26,17 @@ type
   CommandLineOptions* = tuple[searchQuery: string, options: Options]
   SelectionRange* = tuple[begin: int, until: int]
 
+
 # poEchoCmd can be added to options for debugging
-let processOptions = {poStdErrToStdOut, poUsePath}
-let PEERTUBE_REGEX = re"videos\/watch\/[0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12}"
+let
+  processOptions = {poStdErrToStdOut, poUsePath}
+  PEERTUBE_REGEX = re"videos\/watch\/[0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12}"
+
 
 proc isInstalled(program: string): bool =
   execProcess("which " & program).len != 0
 
+
 proc selectMediaPlayer*(): string =
   let availablePlayers = supportedPlayers.filter(isInstalled)
   if len(availablePlayers) == 0:
@@ -40,12 +45,14 @@ proc selectMediaPlayer*(): string =
   else:
     return availablePlayers[0]
 
+
 proc getYoutubePage*(searchQuery: string): string =
   let queryParam = encodeUrl(searchQuery)
   let client = newHttpClient()
   let response = get(client, &"https://www.youtube.com/results?hl=en&search_query={queryParam}")
   $response.body
 
+
 proc getPeerTubeMagnetLink(url: string): string =
   # Gets the magnet link of the best possible resolutino from PeerTube
   let uuid = url.substr(find(url, PEERTUBE_REGEX) + "videos/watch/".len)
@@ -56,26 +63,29 @@ proc getPeerTubeMagnetLink(url: string): string =
   let jsonNode = parseJson($response.body)
   jsonNode["files"][0]["magnetUri"].getStr()
 
+
 func extractTitlesAndUrls*(html: string): SearchResults =
   {.noSideEffect.}:
     parseHtml(html).findAll("a").
       filter(a => "watch" in a.attrs["href"] and a.attrs.hasKey "title").
       map(a => (a.attrs["title"], "https://www.youtube.com" & a.attrs["href"]))
 
+
 proc presentVideoOptions*(searchResults: SearchResults) =
   eraseScreen()
   for index, (title, url) in searchResults:
     styledEcho $index, ". ", styleBright, fgMagenta, title, "\n", resetStyle, fgCyan, url, "\n"
 
+
 func isPlaylist(url: string): bool =
-  # Identifies if video is part of a playlist
-  # Only YouTube playlists are supported for now
+  ##[ Identifies if video is part of a playlist.
+      Only YouTube playlists are supported for now. ]##
   "www.youtube.com" in url and "&list=" in url
 
-# This is a pure function with no side effects
+
 func buildPlayerArgs(url: string, options: Table[string, bool], player: string): seq[string] =
   let url =
-    # Playlists are only supported for MPV player
+    # Playlists are only supported by MPV player. VLC needs a plugin.
     if isPlaylist(url) and player == "mpv":
       "https://www.youtube.com/playlist?" & url.split('&')[1]
     else: url
@@ -83,6 +93,7 @@ func buildPlayerArgs(url: string, options: Table[string, bool], player: string):
   let fullScreen = if options["fullScreen"]: "--fullscreen" else: ""
   filterIt([url, musicOnly, fullScreen], it != "")
 
+
 proc play*(player: string, options: Table[string, bool], url: string, title: string = "") =
   let args = buildPlayerArgs(url, options, player)
   if title != "":
@@ -92,25 +103,39 @@ proc play*(player: string, options: Table[string, bool], url: string, title: str
   else:
     discard execProcess(player, args=args, options=processOptions)
 
-func buildMusicDownloadArgs*(url: string): seq[string] =
+
+func buildMusicDownloadArgs(url: string): seq[string] =
   {.noSideEffect.}:
     let downloadLocation = &"'{expandTilde(musicDownloadDirectory)}/%(title)s.%(ext)s'"
-    @["--ignore-errors", "-f", "bestaudio", "--extract-audio", "--audio-format", "mp3", "--audio-quality", "0", "-o", downloadLocation, url]
+    @["--ignore-errors", "-f", "bestaudio", "--extract-audio", "--audio-format", "mp3",
+      "--audio-quality", "0", "-o", downloadLocation, url]
+
 
-func buildVideoDownloadArgs*(url: string): seq[string] =
+func buildVideoDownloadArgs(url: string): seq[string] =
   {.noSideEffect.}:
     let downloadLocation = &"'{expandTilde(videoDownloadDirectory)}/%(title)s.%(ext)s'"
     @["-f", "best", "-o", downloadLocation, url]
 
+
 proc download*(args: openArray[string], title: string) =
   styledEcho "\n", fgGreen, "Downloading ", styleBright, fgMagenta, title
   discard execShellCmd(&"youtube-dl {args.join(\" \")}")
 
+
 func urlLongen(url: string): string = url.replace("youtu.be/", "www.youtube.com/watch?v=")
 
+
+func rewriteInvidiousToYouTube(url: string): string =
+  {.noSideEffect.}:
+    if rewriteInvidiousURLs: url.replace("invidio.us", "www.youtube.com") else: url
+
+
 func stripZshEscaping(url: string): string = url.replace("\\", "")
 
-func sanitizeURL*(url: string): string = urlLongen(stripZshEscaping(url))
+
+func sanitizeURL*(url: string): string =
+  rewriteInvidiousToYouTube(urlLongen(stripZshEscaping(url)))
+
 
 proc directPlay*(url: string, player: string, options: Table[string, bool]) =
   let url =
@@ -127,12 +152,14 @@ proc directPlay*(url: string, player: string, options: Table[string, bool]) =
   else:
     play(player, options, url)
 
+
 proc directDownload*(url: string, musicOnly: bool) =
   let args =
     if musicOnly: buildMusicDownloadArgs(url)
     else: buildVideoDownloadArgs(url)
   discard execShellCmd(&"youtube-dl {args.join(\" \")}")
 
+
 proc offerSelection(searchResults: SearchResults, options: Table[string, bool], selectionRange: SelectionRange): string =
   if options["feelingLucky"]: "0"
   else:
@@ -140,6 +167,7 @@ proc offerSelection(searchResults: SearchResults, options: Table[string, bool],
     stdout.styledWrite(fgYellow, "Choose video number: ")
     readLine(stdin)
 
+
 proc handleUserInput(searchResult: SearchResult, options: Table[string, bool], player: string) =
   if options["download"]:
     if options["musicOnly"]:
@@ -149,6 +177,7 @@ proc handleUserInput(searchResult: SearchResult, options: Table[string, bool], p
   else:
     play(player, options, searchResult.url, searchResult.title)
 
+
 proc present*(searchResults: SearchResults, options: Table[string, bool], selectionRange: SelectionRange, player: string) =
   ##[ Continuously present options till the user quits the application