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Extract channel routes (#2227)
* Extract primary channel routes from invidious.cr Also removes timedtext_video stub since all it does is redirect to the homepage. However, Invidious's 404 handler already does this. -- As the template for the channel about page doesn't exist yet, the behavior for the /channel/:ucid/about endpoint has been changed to be the same as what's currently present on Invidious (cherry picked from commit8fad19d805) * Manually extract brand_redirect from1b569bbc99This commit manually extracts the brand_redirect function from the commit mentioned. However, the redirect to the `.../about` endpoint is removed due to the fact that it doesn't exist yet. This commit is also mainly just a bridge for the next few cherry picks from \#2215 * Update brand_redirect to use youtubei resolve_url (cherry picked from commit53335fe7cf) * Add additional channel endpoints to brand_redirect (cherry picked from commit8fc6f3add6) * Add separate handler for /profile endpoint * Add /channel/:ucid/home route * Document all channel brand_urls
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commit
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2 changed files with 190 additions and 211 deletions
229
src/invidious.cr
229
src/invidious.cr
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@ -309,6 +309,24 @@ Invidious::Routing.get "/", Invidious::Routes::Misc, :home
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Invidious::Routing.get "/privacy", Invidious::Routes::Misc, :privacy
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Invidious::Routing.get "/licenses", Invidious::Routes::Misc, :licenses
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Invidious::Routing.get "/channel/:ucid", Invidious::Routes::Channels, :home
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Invidious::Routing.get "/channel/:ucid/home", Invidious::Routes::Channels, :home
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Invidious::Routing.get "/channel/:ucid/videos", Invidious::Routes::Channels, :videos
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Invidious::Routing.get "/channel/:ucid/playlists", Invidious::Routes::Channels, :playlists
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Invidious::Routing.get "/channel/:ucid/community", Invidious::Routes::Channels, :community
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Invidious::Routing.get "/channel/:ucid/about", Invidious::Routes::Channels, :about
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["", "/videos", "/playlists", "/community", "/about"].each do |path|
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# /c/LinusTechTips
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Invidious::Routing.get "/c/:user#{path}", Invidious::Routes::Channels, :brand_redirect
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# /user/linustechtips | Not always the same as /c/
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Invidious::Routing.get "/user/:user#{path}", Invidious::Routes::Channels, :brand_redirect
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# /attribution_link?a=anything&u=/channel/UCZYTClx2T1of7BRZ86-8fow
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Invidious::Routing.get "/attribution_link#{path}", Invidious::Routes::Channels, :brand_redirect
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# /profile?user=linustechtips
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Invidious::Routing.get "/profile/#{path}", Invidious::Routes::Channels, :profile
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end
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Invidious::Routing.get "/watch", Invidious::Routes::Watch, :handle
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Invidious::Routing.get "/watch/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/shorts/:id", Invidious::Routes::Watch, :redirect
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@ -1618,217 +1636,6 @@ end
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end
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end
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# YouTube appears to let users set a "brand" URL that
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# is different from their username, so we convert that here
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get "/c/:user" do |env|
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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user = env.params.url["user"]
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response = YT_POOL.client &.get("/c/#{user}")
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html = XML.parse_html(response.body)
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ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1]
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next env.redirect "/" if !ucid
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env.redirect "/channel/#{ucid}"
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end
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# Legacy endpoint for /user/:username
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get "/profile" do |env|
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user = env.params.query["user"]?
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if !user
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env.redirect "/"
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else
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env.redirect "/user/#{user}"
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end
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end
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get "/attribution_link" do |env|
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if query = env.params.query["u"]?
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url = URI.parse(query).request_target
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else
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url = "/"
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end
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env.redirect url
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end
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# Page used by YouTube to provide captioning widget, since we
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# don't support it we redirect to '/'
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get "/timedtext_video" do |env|
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env.redirect "/"
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end
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get "/user/:user" do |env|
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user = env.params.url["user"]
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env.redirect "/channel/#{user}"
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end
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get "/user/:user/videos" do |env|
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user = env.params.url["user"]
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env.redirect "/channel/#{user}/videos"
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end
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get "/user/:user/about" do |env|
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user = env.params.url["user"]
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env.redirect "/channel/#{user}"
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end
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get "/channel/:ucid/about" do |env|
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ucid = env.params.url["ucid"]
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env.redirect "/channel/#{ucid}"
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end
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get "/channel/:ucid" do |env|
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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user = env.get? "user"
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if user
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user = user.as(User)
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subscriptions = user.subscriptions
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end
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subscriptions ||= [] of String
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ucid = env.params.url["ucid"]
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page = env.params.query["page"]?.try &.to_i?
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page ||= 1
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continuation = env.params.query["continuation"]?
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sort_by = env.params.query["sort_by"]?.try &.downcase
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begin
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channel = get_about_info(ucid, locale)
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rescue ex : ChannelRedirect
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next env.redirect env.request.resource.gsub(ucid, ex.channel_id)
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rescue ex
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next error_template(500, ex)
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end
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if channel.auto_generated
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sort_options = {"last", "oldest", "newest"}
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sort_by ||= "last"
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items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
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items.uniq! do |item|
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if item.responds_to?(:title)
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item.title
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elsif item.responds_to?(:author)
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item.author
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end
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end
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items = items.select(&.is_a?(SearchPlaylist)).map(&.as(SearchPlaylist))
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items.each { |item| item.author = "" }
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else
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sort_options = {"newest", "oldest", "popular"}
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sort_by ||= "newest"
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count, items = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
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items.reject! &.paid
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env.set "search", "channel:#{channel.ucid} "
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end
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templated "channel"
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end
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get "/channel/:ucid/videos" do |env|
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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ucid = env.params.url["ucid"]
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params = env.request.query
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if !params || params.empty?
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params = ""
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else
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params = "?#{params}"
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end
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env.redirect "/channel/#{ucid}#{params}"
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end
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get "/channel/:ucid/playlists" do |env|
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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user = env.get? "user"
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if user
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user = user.as(User)
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subscriptions = user.subscriptions
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end
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subscriptions ||= [] of String
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ucid = env.params.url["ucid"]
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continuation = env.params.query["continuation"]?
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sort_by = env.params.query["sort_by"]?.try &.downcase
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sort_by ||= "last"
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begin
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channel = get_about_info(ucid, locale)
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rescue ex : ChannelRedirect
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next env.redirect env.request.resource.gsub(ucid, ex.channel_id)
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rescue ex
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next error_template(500, ex)
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end
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if channel.auto_generated
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next env.redirect "/channel/#{channel.ucid}"
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end
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items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
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items = items.select { |item| item.is_a?(SearchPlaylist) }.map { |item| item.as(SearchPlaylist) }
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items.each { |item| item.author = "" }
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env.set "search", "channel:#{channel.ucid} "
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templated "playlists"
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end
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get "/channel/:ucid/community" do |env|
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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user = env.get? "user"
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if user
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user = user.as(User)
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subscriptions = user.subscriptions
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end
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subscriptions ||= [] of String
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ucid = env.params.url["ucid"]
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thin_mode = env.params.query["thin_mode"]? || env.get("preferences").as(Preferences).thin_mode
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thin_mode = thin_mode == "true"
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continuation = env.params.query["continuation"]?
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# sort_by = env.params.query["sort_by"]?.try &.downcase
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begin
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channel = get_about_info(ucid, locale)
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rescue ex : ChannelRedirect
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next env.redirect env.request.resource.gsub(ucid, ex.channel_id)
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rescue ex
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next error_template(500, ex)
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end
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if !channel.tabs.includes? "community"
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next env.redirect "/channel/#{channel.ucid}"
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end
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begin
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items = JSON.parse(fetch_channel_community(ucid, continuation, locale, "json", thin_mode))
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rescue ex : InfoException
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env.response.status_code = 500
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error_message = ex.message
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rescue ex
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next error_template(500, ex)
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end
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env.set "search", "channel:#{channel.ucid} "
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templated "community"
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end
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# API Endpoints
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get "/api/v1/stats" do |env|
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172
src/invidious/routes/channels.cr
Normal file
172
src/invidious/routes/channels.cr
Normal file
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@ -0,0 +1,172 @@
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class Invidious::Routes::Channels < Invidious::Routes::BaseRoute
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def home(env)
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self.videos(env)
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end
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def videos(env)
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data = self.fetch_basic_information(env)
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if !data.is_a?(Tuple)
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return data
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end
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locale, user, subscriptions, continuation, ucid, channel = data
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page = env.params.query["page"]?.try &.to_i?
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page ||= 1
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sort_by = env.params.query["sort_by"]?.try &.downcase
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if channel.auto_generated
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sort_options = {"last", "oldest", "newest"}
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sort_by ||= "last"
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items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
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items.uniq! do |item|
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if item.responds_to?(:title)
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item.title
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elsif item.responds_to?(:author)
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item.author
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end
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end
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items = items.select(&.is_a?(SearchPlaylist)).map(&.as(SearchPlaylist))
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items.each { |item| item.author = "" }
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else
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sort_options = {"newest", "oldest", "popular"}
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sort_by ||= "newest"
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count, items = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
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items.reject! &.paid
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end
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templated "channel"
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end
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def playlists(env)
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data = self.fetch_basic_information(env)
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if !data.is_a?(Tuple)
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return data
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end
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locale, user, subscriptions, continuation, ucid, channel = data
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sort_options = {"last", "oldest", "newest"}
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sort_by = env.params.query["sort_by"]?.try &.downcase
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sort_by ||= "last"
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if channel.auto_generated
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return env.redirect "/channel/#{channel.ucid}"
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end
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items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
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items = items.select { |item| item.is_a?(SearchPlaylist) }.map { |item| item.as(SearchPlaylist) }
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items.each { |item| item.author = "" }
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templated "playlists"
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end
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def community(env)
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data = self.fetch_basic_information(env)
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if !data.is_a?(Tuple)
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return data
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end
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locale, user, subscriptions, continuation, ucid, channel = data
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thin_mode = env.params.query["thin_mode"]? || env.get("preferences").as(Preferences).thin_mode
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thin_mode = thin_mode == "true"
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continuation = env.params.query["continuation"]?
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# sort_by = env.params.query["sort_by"]?.try &.downcase
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if !channel.tabs.includes? "community"
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return env.redirect "/channel/#{channel.ucid}"
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end
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begin
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items = JSON.parse(fetch_channel_community(ucid, continuation, locale, "json", thin_mode))
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rescue ex : InfoException
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env.response.status_code = 500
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error_message = ex.message
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rescue ex
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return error_template(500, ex)
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end
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templated "community"
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end
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def about(env)
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data = self.fetch_basic_information(env)
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if !data.is_a?(Tuple)
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return data
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end
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locale, user, subscriptions, continuation, ucid, channel = data
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env.redirect "/channel/#{ucid}"
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end
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# Redirects brand url channels to a normal /channel/:ucid route
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def brand_redirect(env)
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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# /attribution_link endpoint needs both the `a` and `u` parameter
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# and in order to avoid detection from YouTube we should only send the required ones
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# without any of the additional url parameters that only Invidious uses.
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yt_url_params = URI::Params.encode(env.params.query.to_h.select(["a", "u", "user"]))
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# Retrieves URL params that only Invidious uses
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invidious_url_params = URI::Params.encode(env.params.query.to_h.select!(["a", "u", "user"]))
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begin
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resolved_url = YoutubeAPI.resolve_url("https://youtube.com#{env.request.path}#{yt_url_params.size > 0 ? "?#{yt_url_params}" : ""}")
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ucid = resolved_url["endpoint"]["browseEndpoint"]["browseId"]
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rescue ex : InfoException | KeyError
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raise InfoException.new(translate(locale, "This channel does not exist."))
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end
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selected_tab = env.request.path.split("/")[-1]
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if ["home", "videos", "playlists", "community", "channels", "about"].includes? selected_tab
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url = "/channel/#{ucid}/#{selected_tab}"
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else
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url = "/channel/#{ucid}"
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end
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env.redirect url
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end
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# Handles redirects for the /profile endpoint
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def profile(env)
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# The /profile endpoint is special. If passed into the resolve_url
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# endpoint YouTube would return a sign in page instead of an /channel/:ucid
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# thus we'll add an edge case and handle it here.
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uri_params = env.params.query.size > 0 ? "?#{env.params.query}" : ""
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user = env.params.query["user"]?
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if !user
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raise InfoException.new("This channel does not exist.")
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else
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env.redirect "/user/#{user}#{uri_params}"
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end
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end
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private def fetch_basic_information(env)
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locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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user = env.get? "user"
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if user
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user = user.as(User)
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subscriptions = user.subscriptions
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end
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subscriptions ||= [] of String
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ucid = env.params.url["ucid"]
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continuation = env.params.query["continuation"]?
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begin
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channel = get_about_info(ucid, locale)
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rescue ex : ChannelRedirect
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return env.redirect env.request.resource.gsub(ucid, ex.channel_id)
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rescue ex
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return error_template(500, ex)
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end
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return {locale, user, subscriptions, continuation, ucid, channel}
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end
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end
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