3dac33ffba
Error handling has been reworked to always go through the new `error_template`, `error_json` and `error_atom` macros. They all accept a status code followed by a string message or an exception object. `error_json` accepts a hash with additional fields as third argument. If the second argument is an exception a backtrace will be printed, if it is a string only the string is printed. Since up till now only the exception message was printed a new `InfoException` class was added for situations where no backtrace is intended but a string cannot be used. `error_template` with a string message automatically localizes the message. Missing error translations have been collected in https://github.com/iv-org/invidious/issues/1497 `error_json` with a string message does not localize the message. This is the same as previous behavior. If translations are desired for `error_json` they can be added easily but those error messages have not been collected yet. Uncaught exceptions previously only printed a generic message ("Looks like you've found a bug in Invidious. [...]"). They still print that message but now also include a backtrace.
939 lines
34 KiB
Crystal
939 lines
34 KiB
Crystal
struct InvidiousChannel
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include DB::Serializable
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property id : String
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property author : String
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property updated : Time
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property deleted : Bool
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property subscribed : Time?
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end
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struct ChannelVideo
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include DB::Serializable
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property id : String
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property title : String
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property published : Time
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property updated : Time
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property ucid : String
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property author : String
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property length_seconds : Int32 = 0
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property live_now : Bool = false
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property premiere_timestamp : Time? = nil
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property views : Int64? = nil
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def to_json(locale, json : JSON::Builder)
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json.object do
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json.field "type", "shortVideo"
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json.field "title", self.title
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json.field "videoId", self.id
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json.field "videoThumbnails" do
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generate_thumbnails(json, self.id)
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end
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json.field "lengthSeconds", self.length_seconds
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "published", self.published.to_unix
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json.field "publishedText", translate(locale, "`x` ago", recode_date(self.published, locale))
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json.field "viewCount", self.views
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end
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end
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def to_json(locale, json : JSON::Builder | Nil = nil)
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if json
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to_json(locale, json)
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else
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JSON.build do |json|
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to_json(locale, json)
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end
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end
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end
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def to_xml(locale, query_params, xml : XML::Builder)
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query_params["v"] = self.id
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xml.element("entry") do
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xml.element("id") { xml.text "yt:video:#{self.id}" }
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xml.element("yt:videoId") { xml.text self.id }
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xml.element("yt:channelId") { xml.text self.ucid }
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xml.element("title") { xml.text self.title }
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xml.element("link", rel: "alternate", href: "#{HOST_URL}/watch?#{query_params}")
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xml.element("author") do
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xml.element("name") { xml.text self.author }
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xml.element("uri") { xml.text "#{HOST_URL}/channel/#{self.ucid}" }
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end
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xml.element("content", type: "xhtml") do
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xml.element("div", xmlns: "http://www.w3.org/1999/xhtml") do
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xml.element("a", href: "#{HOST_URL}/watch?#{query_params}") do
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xml.element("img", src: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg")
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end
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end
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end
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xml.element("published") { xml.text self.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
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xml.element("updated") { xml.text self.updated.to_s("%Y-%m-%dT%H:%M:%S%:z") }
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xml.element("media:group") do
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xml.element("media:title") { xml.text self.title }
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xml.element("media:thumbnail", url: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg",
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width: "320", height: "180")
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end
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end
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end
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def to_xml(locale, xml : XML::Builder | Nil = nil)
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if xml
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to_xml(locale, xml)
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else
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XML.build do |xml|
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to_xml(locale, xml)
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end
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end
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end
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def to_tuple
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{% begin %}
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{
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{{*@type.instance_vars.map { |var| var.name }}}
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}
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{% end %}
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end
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end
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struct AboutRelatedChannel
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include DB::Serializable
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property ucid : String
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property author : String
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property author_url : String
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property author_thumbnail : String
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end
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# TODO: Refactor into either SearchChannel or InvidiousChannel
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struct AboutChannel
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include DB::Serializable
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property ucid : String
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property author : String
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property auto_generated : Bool
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property author_url : String
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property author_thumbnail : String
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property banner : String?
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property description_html : String
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property paid : Bool
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property total_views : Int64
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property sub_count : Int32
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property joined : Time
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property is_family_friendly : Bool
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property allowed_regions : Array(String)
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property related_channels : Array(AboutRelatedChannel)
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property tabs : Array(String)
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end
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class ChannelRedirect < Exception
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property channel_id : String
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def initialize(@channel_id)
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end
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end
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def get_batch_channels(channels, db, refresh = false, pull_all_videos = true, max_threads = 10)
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finished_channel = Channel(String | Nil).new
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spawn do
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active_threads = 0
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active_channel = Channel(Nil).new
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channels.each do |ucid|
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if active_threads >= max_threads
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active_channel.receive
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active_threads -= 1
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end
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active_threads += 1
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spawn do
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begin
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get_channel(ucid, db, refresh, pull_all_videos)
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finished_channel.send(ucid)
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rescue ex
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finished_channel.send(nil)
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ensure
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active_channel.send(nil)
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end
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end
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end
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end
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final = [] of String
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channels.size.times do
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if ucid = finished_channel.receive
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final << ucid
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end
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end
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return final
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end
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def get_channel(id, db, refresh = true, pull_all_videos = true)
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if channel = db.query_one?("SELECT * FROM channels WHERE id = $1", id, as: InvidiousChannel)
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if refresh && Time.utc - channel.updated > 10.minutes
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channel = fetch_channel(id, db, pull_all_videos: pull_all_videos)
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channel_array = channel.to_a
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args = arg_array(channel_array)
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db.exec("INSERT INTO channels VALUES (#{args}) \
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ON CONFLICT (id) DO UPDATE SET author = $2, updated = $3", args: channel_array)
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end
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else
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channel = fetch_channel(id, db, pull_all_videos: pull_all_videos)
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channel_array = channel.to_a
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args = arg_array(channel_array)
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db.exec("INSERT INTO channels VALUES (#{args})", args: channel_array)
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end
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return channel
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end
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def fetch_channel(ucid, db, pull_all_videos = true, locale = nil)
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rss = YT_POOL.client &.get("/feeds/videos.xml?channel_id=#{ucid}").body
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rss = XML.parse_html(rss)
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author = rss.xpath_node(%q(//feed/title))
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if !author
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raise InfoException.new("Deleted or invalid channel")
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end
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author = author.content
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# Auto-generated channels
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# https://support.google.com/youtube/answer/2579942
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if author.ends_with?(" - Topic") ||
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{"Popular on YouTube", "Music", "Sports", "Gaming"}.includes? author
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auto_generated = true
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end
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page = 1
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response = get_channel_videos_response(ucid, page, auto_generated: auto_generated)
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videos = [] of SearchVideo
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begin
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initial_data = JSON.parse(response.body).as_a.find &.["response"]?
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raise InfoException.new("Could not extract channel JSON") if !initial_data
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videos = extract_videos(initial_data.as_h, author, ucid)
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rescue ex
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if response.body.includes?("To continue with your YouTube experience, please fill out the form below.") ||
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response.body.includes?("https://www.google.com/sorry/index")
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raise InfoException.new("Could not extract channel info. Instance is likely blocked.")
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end
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raise ex
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end
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rss.xpath_nodes("//feed/entry").each do |entry|
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video_id = entry.xpath_node("videoid").not_nil!.content
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title = entry.xpath_node("title").not_nil!.content
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published = Time.parse_rfc3339(entry.xpath_node("published").not_nil!.content)
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updated = Time.parse_rfc3339(entry.xpath_node("updated").not_nil!.content)
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author = entry.xpath_node("author/name").not_nil!.content
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ucid = entry.xpath_node("channelid").not_nil!.content
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views = entry.xpath_node("group/community/statistics").try &.["views"]?.try &.to_i64?
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views ||= 0_i64
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channel_video = videos.select { |video| video.id == video_id }[0]?
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length_seconds = channel_video.try &.length_seconds
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length_seconds ||= 0
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live_now = channel_video.try &.live_now
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live_now ||= false
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premiere_timestamp = channel_video.try &.premiere_timestamp
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video = ChannelVideo.new({
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id: video_id,
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title: title,
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published: published,
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updated: Time.utc,
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ucid: ucid,
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author: author,
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length_seconds: length_seconds,
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live_now: live_now,
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premiere_timestamp: premiere_timestamp,
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views: views,
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})
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# We don't include the 'premiere_timestamp' here because channel pages don't include them,
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# meaning the above timestamp is always null
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was_insert = db.query_one("INSERT INTO channel_videos VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10) \
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ON CONFLICT (id) DO UPDATE SET title = $2, published = $3, \
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updated = $4, ucid = $5, author = $6, length_seconds = $7, \
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live_now = $8, views = $10 returning (xmax=0) as was_insert", *video.to_tuple, as: Bool)
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db.exec("UPDATE users SET notifications = array_append(notifications, $1), \
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feed_needs_update = true WHERE $2 = ANY(subscriptions)", video.id, video.ucid) if was_insert
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end
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if pull_all_videos
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page += 1
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ids = [] of String
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loop do
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response = get_channel_videos_response(ucid, page, auto_generated: auto_generated)
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initial_data = JSON.parse(response.body).as_a.find &.["response"]?
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raise InfoException.new("Could not extract channel JSON") if !initial_data
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videos = extract_videos(initial_data.as_h, author, ucid)
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count = videos.size
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videos = videos.map { |video| ChannelVideo.new({
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id: video.id,
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title: video.title,
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published: video.published,
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updated: Time.utc,
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ucid: video.ucid,
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author: video.author,
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length_seconds: video.length_seconds,
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live_now: video.live_now,
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premiere_timestamp: video.premiere_timestamp,
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views: video.views,
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}) }
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videos.each do |video|
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ids << video.id
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# We are notified of Red videos elsewhere (PubSub), which includes a correct published date,
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# so since they don't provide a published date here we can safely ignore them.
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if Time.utc - video.published > 1.minute
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was_insert = db.query_one("INSERT INTO channel_videos VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10) \
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ON CONFLICT (id) DO UPDATE SET title = $2, published = $3, \
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updated = $4, ucid = $5, author = $6, length_seconds = $7, \
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live_now = $8, views = $10 returning (xmax=0) as was_insert", *video.to_tuple, as: Bool)
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db.exec("UPDATE users SET notifications = array_append(notifications, $1), \
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feed_needs_update = true WHERE $2 = ANY(subscriptions)", video.id, video.ucid) if was_insert
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end
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end
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break if count < 25
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page += 1
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end
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end
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channel = InvidiousChannel.new({
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id: ucid,
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author: author,
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updated: Time.utc,
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deleted: false,
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subscribed: nil,
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})
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return channel
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end
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def fetch_channel_playlists(ucid, author, auto_generated, continuation, sort_by)
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if continuation || auto_generated
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url = produce_channel_playlists_url(ucid, continuation, sort_by, auto_generated)
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response = YT_POOL.client &.get(url)
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continuation = response.body.match(/"continuation":"(?<continuation>[^"]+)"/).try &.["continuation"]?
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initial_data = JSON.parse(response.body).as_a.find(&.["response"]?).try &.as_h
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else
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url = "/channel/#{ucid}/playlists?flow=list&view=1"
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case sort_by
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when "last", "last_added"
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#
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when "oldest", "oldest_created"
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url += "&sort=da"
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when "newest", "newest_created"
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url += "&sort=dd"
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else nil # Ignore
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end
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response = YT_POOL.client &.get(url)
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continuation = response.body.match(/"continuation":"(?<continuation>[^"]+)"/).try &.["continuation"]?
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initial_data = extract_initial_data(response.body)
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end
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return [] of SearchItem, nil if !initial_data
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items = extract_items(initial_data)
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continuation = extract_channel_playlists_cursor(continuation, auto_generated) if continuation
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return items, continuation
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end
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def produce_channel_videos_url(ucid, page = 1, auto_generated = nil, sort_by = "newest", v2 = false)
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object = {
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"80226972:embedded" => {
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"2:string" => ucid,
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"3:base64" => {
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"2:string" => "videos",
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"6:varint" => 2_i64,
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"7:varint" => 1_i64,
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"12:varint" => 1_i64,
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"13:string" => "",
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"23:varint" => 0_i64,
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},
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},
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}
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if !v2
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if auto_generated
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seed = Time.unix(1525757349)
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until seed >= Time.utc
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seed += 1.month
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end
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timestamp = seed - (page - 1).months
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object["80226972:embedded"]["3:base64"].as(Hash)["4:varint"] = 0x36_i64
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object["80226972:embedded"]["3:base64"].as(Hash)["15:string"] = "#{timestamp.to_unix}"
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else
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object["80226972:embedded"]["3:base64"].as(Hash)["4:varint"] = 0_i64
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object["80226972:embedded"]["3:base64"].as(Hash)["15:string"] = "#{page}"
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end
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else
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object["80226972:embedded"]["3:base64"].as(Hash)["4:varint"] = 0_i64
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object["80226972:embedded"]["3:base64"].as(Hash)["61:string"] = Base64.urlsafe_encode(Protodec::Any.from_json(Protodec::Any.cast_json({
|
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"1:string" => Base64.urlsafe_encode(Protodec::Any.from_json(Protodec::Any.cast_json({
|
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"1:varint" => 30_i64 * (page - 1),
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}))),
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})))
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end
|
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|
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case sort_by
|
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when "newest"
|
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when "popular"
|
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object["80226972:embedded"]["3:base64"].as(Hash)["3:varint"] = 0x01_i64
|
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when "oldest"
|
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object["80226972:embedded"]["3:base64"].as(Hash)["3:varint"] = 0x02_i64
|
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else nil # Ignore
|
|
end
|
|
|
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object["80226972:embedded"]["3:string"] = Base64.urlsafe_encode(Protodec::Any.from_json(Protodec::Any.cast_json(object["80226972:embedded"]["3:base64"])))
|
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object["80226972:embedded"].delete("3:base64")
|
|
|
|
continuation = object.try { |i| Protodec::Any.cast_json(object) }
|
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.try { |i| Protodec::Any.from_json(i) }
|
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.try { |i| Base64.urlsafe_encode(i) }
|
|
.try { |i| URI.encode_www_form(i) }
|
|
|
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return "/browse_ajax?continuation=#{continuation}&gl=US&hl=en"
|
|
end
|
|
|
|
def produce_channel_playlists_url(ucid, cursor, sort = "newest", auto_generated = false)
|
|
object = {
|
|
"80226972:embedded" => {
|
|
"2:string" => ucid,
|
|
"3:base64" => {
|
|
"2:string" => "playlists",
|
|
"6:varint" => 2_i64,
|
|
"7:varint" => 1_i64,
|
|
"12:varint" => 1_i64,
|
|
"13:string" => "",
|
|
"23:varint" => 0_i64,
|
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},
|
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},
|
|
}
|
|
|
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if cursor
|
|
cursor = Base64.urlsafe_encode(cursor, false) if !auto_generated
|
|
object["80226972:embedded"]["3:base64"].as(Hash)["15:string"] = cursor
|
|
end
|
|
|
|
if auto_generated
|
|
object["80226972:embedded"]["3:base64"].as(Hash)["4:varint"] = 0x32_i64
|
|
else
|
|
object["80226972:embedded"]["3:base64"].as(Hash)["4:varint"] = 1_i64
|
|
case sort
|
|
when "oldest", "oldest_created"
|
|
object["80226972:embedded"]["3:base64"].as(Hash)["3:varint"] = 2_i64
|
|
when "newest", "newest_created"
|
|
object["80226972:embedded"]["3:base64"].as(Hash)["3:varint"] = 3_i64
|
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when "last", "last_added"
|
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object["80226972:embedded"]["3:base64"].as(Hash)["3:varint"] = 4_i64
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else nil # Ignore
|
|
end
|
|
end
|
|
|
|
object["80226972:embedded"]["3:string"] = Base64.urlsafe_encode(Protodec::Any.from_json(Protodec::Any.cast_json(object["80226972:embedded"]["3:base64"])))
|
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object["80226972:embedded"].delete("3:base64")
|
|
|
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continuation = object.try { |i| Protodec::Any.cast_json(object) }
|
|
.try { |i| Protodec::Any.from_json(i) }
|
|
.try { |i| Base64.urlsafe_encode(i) }
|
|
.try { |i| URI.encode_www_form(i) }
|
|
|
|
return "/browse_ajax?continuation=#{continuation}&gl=US&hl=en"
|
|
end
|
|
|
|
def extract_channel_playlists_cursor(cursor, auto_generated)
|
|
cursor = URI.decode_www_form(cursor)
|
|
.try { |i| Base64.decode(i) }
|
|
.try { |i| IO::Memory.new(i) }
|
|
.try { |i| Protodec::Any.parse(i) }
|
|
.try { |i| i["80226972:0:embedded"]["3:1:base64"].as_h.find { |k, v| k.starts_with? "15:" } }
|
|
.try &.[1]
|
|
|
|
if cursor.try &.as_h?
|
|
cursor = cursor.try { |i| Protodec::Any.cast_json(i.as_h) }
|
|
.try { |i| Protodec::Any.from_json(i) }
|
|
.try { |i| Base64.urlsafe_encode(i) }
|
|
.try { |i| URI.encode_www_form(i) } || ""
|
|
else
|
|
cursor = cursor.try &.as_s || ""
|
|
end
|
|
|
|
if !auto_generated
|
|
cursor = URI.decode_www_form(cursor)
|
|
.try { |i| Base64.decode_string(i) }
|
|
end
|
|
|
|
return cursor
|
|
end
|
|
|
|
# TODO: Add "sort_by"
|
|
def fetch_channel_community(ucid, continuation, locale, format, thin_mode)
|
|
response = YT_POOL.client &.get("/channel/#{ucid}/community?gl=US&hl=en")
|
|
if response.status_code != 200
|
|
response = YT_POOL.client &.get("/user/#{ucid}/community?gl=US&hl=en")
|
|
end
|
|
|
|
if response.status_code != 200
|
|
raise InfoException.new("This channel does not exist.")
|
|
end
|
|
|
|
ucid = response.body.match(/https:\/\/www.youtube.com\/channel\/(?<ucid>UC[a-zA-Z0-9_-]{22})/).not_nil!["ucid"]
|
|
|
|
if !continuation || continuation.empty?
|
|
initial_data = extract_initial_data(response.body)
|
|
body = initial_data["contents"]?.try &.["twoColumnBrowseResultsRenderer"]["tabs"].as_a.select { |tab| tab["tabRenderer"]?.try &.["selected"].as_bool.== true }[0]?
|
|
|
|
if !body
|
|
raise InfoException.new("Could not extract community tab.")
|
|
end
|
|
|
|
body = body["tabRenderer"]["content"]["sectionListRenderer"]["contents"][0]["itemSectionRenderer"]
|
|
else
|
|
continuation = produce_channel_community_continuation(ucid, continuation)
|
|
|
|
headers = HTTP::Headers.new
|
|
headers["cookie"] = response.cookies.add_request_headers(headers)["cookie"]
|
|
|
|
session_token = response.body.match(/"XSRF_TOKEN":"(?<session_token>[^"]+)"/).try &.["session_token"]? || ""
|
|
post_req = {
|
|
session_token: session_token,
|
|
}
|
|
|
|
response = YT_POOL.client &.post("/comment_service_ajax?action_get_comments=1&ctoken=#{continuation}&continuation=#{continuation}&hl=en&gl=US", headers, form: post_req)
|
|
body = JSON.parse(response.body)
|
|
|
|
body = body["response"]["continuationContents"]["itemSectionContinuation"]? ||
|
|
body["response"]["continuationContents"]["backstageCommentsContinuation"]?
|
|
|
|
if !body
|
|
raise InfoException.new("Could not extract continuation.")
|
|
end
|
|
end
|
|
|
|
continuation = body["continuations"]?.try &.[0]["nextContinuationData"]["continuation"].as_s
|
|
posts = body["contents"].as_a
|
|
|
|
if message = posts[0]["messageRenderer"]?
|
|
error_message = (message["text"]["simpleText"]? ||
|
|
message["text"]["runs"]?.try &.[0]?.try &.["text"]?)
|
|
.try &.as_s || ""
|
|
raise InfoException.new(error_message)
|
|
end
|
|
|
|
response = JSON.build do |json|
|
|
json.object do
|
|
json.field "authorId", ucid
|
|
json.field "comments" do
|
|
json.array do
|
|
posts.each do |post|
|
|
comments = post["backstagePostThreadRenderer"]?.try &.["comments"]? ||
|
|
post["backstageCommentsContinuation"]?
|
|
|
|
post = post["backstagePostThreadRenderer"]?.try &.["post"]["backstagePostRenderer"]? ||
|
|
post["commentThreadRenderer"]?.try &.["comment"]["commentRenderer"]?
|
|
|
|
next if !post
|
|
|
|
content_html = post["contentText"]?.try { |t| parse_content(t) } || ""
|
|
author = post["authorText"]?.try &.["simpleText"]? || ""
|
|
|
|
json.object do
|
|
json.field "author", author
|
|
json.field "authorThumbnails" do
|
|
json.array do
|
|
qualities = {32, 48, 76, 100, 176, 512}
|
|
author_thumbnail = post["authorThumbnail"]["thumbnails"].as_a[0]["url"].as_s
|
|
|
|
qualities.each do |quality|
|
|
json.object do
|
|
json.field "url", author_thumbnail.gsub(/s\d+-/, "s#{quality}-")
|
|
json.field "width", quality
|
|
json.field "height", quality
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
if post["authorEndpoint"]?
|
|
json.field "authorId", post["authorEndpoint"]["browseEndpoint"]["browseId"]
|
|
json.field "authorUrl", post["authorEndpoint"]["commandMetadata"]["webCommandMetadata"]["url"].as_s
|
|
else
|
|
json.field "authorId", ""
|
|
json.field "authorUrl", ""
|
|
end
|
|
|
|
published_text = post["publishedTimeText"]["runs"][0]["text"].as_s
|
|
published = decode_date(published_text.rchop(" (edited)"))
|
|
|
|
if published_text.includes?(" (edited)")
|
|
json.field "isEdited", true
|
|
else
|
|
json.field "isEdited", false
|
|
end
|
|
|
|
like_count = post["actionButtons"]["commentActionButtonsRenderer"]["likeButton"]["toggleButtonRenderer"]["accessibilityData"]["accessibilityData"]["label"]
|
|
.try &.as_s.gsub(/\D/, "").to_i? || 0
|
|
|
|
json.field "content", html_to_content(content_html)
|
|
json.field "contentHtml", content_html
|
|
|
|
json.field "published", published.to_unix
|
|
json.field "publishedText", translate(locale, "`x` ago", recode_date(published, locale))
|
|
|
|
json.field "likeCount", like_count
|
|
json.field "commentId", post["postId"]? || post["commentId"]? || ""
|
|
json.field "authorIsChannelOwner", post["authorEndpoint"]["browseEndpoint"]["browseId"] == ucid
|
|
|
|
if attachment = post["backstageAttachment"]?
|
|
json.field "attachment" do
|
|
json.object do
|
|
case attachment.as_h
|
|
when .has_key?("videoRenderer")
|
|
attachment = attachment["videoRenderer"]
|
|
json.field "type", "video"
|
|
|
|
if !attachment["videoId"]?
|
|
error_message = (attachment["title"]["simpleText"]? ||
|
|
attachment["title"]["runs"]?.try &.[0]?.try &.["text"]?)
|
|
|
|
json.field "error", error_message
|
|
else
|
|
video_id = attachment["videoId"].as_s
|
|
|
|
json.field "title", attachment["title"]["simpleText"].as_s
|
|
json.field "videoId", video_id
|
|
json.field "videoThumbnails" do
|
|
generate_thumbnails(json, video_id)
|
|
end
|
|
|
|
json.field "lengthSeconds", decode_length_seconds(attachment["lengthText"]["simpleText"].as_s)
|
|
|
|
author_info = attachment["ownerText"]["runs"][0].as_h
|
|
|
|
json.field "author", author_info["text"].as_s
|
|
json.field "authorId", author_info["navigationEndpoint"]["browseEndpoint"]["browseId"]
|
|
json.field "authorUrl", author_info["navigationEndpoint"]["commandMetadata"]["webCommandMetadata"]["url"]
|
|
|
|
# TODO: json.field "authorThumbnails", "channelThumbnailSupportedRenderers"
|
|
# TODO: json.field "authorVerified", "ownerBadges"
|
|
|
|
published = decode_date(attachment["publishedTimeText"]["simpleText"].as_s)
|
|
|
|
json.field "published", published.to_unix
|
|
json.field "publishedText", translate(locale, "`x` ago", recode_date(published, locale))
|
|
|
|
view_count = attachment["viewCountText"]["simpleText"].as_s.gsub(/\D/, "").to_i64? || 0_i64
|
|
|
|
json.field "viewCount", view_count
|
|
json.field "viewCountText", translate(locale, "`x` views", number_to_short_text(view_count))
|
|
end
|
|
when .has_key?("backstageImageRenderer")
|
|
attachment = attachment["backstageImageRenderer"]
|
|
json.field "type", "image"
|
|
|
|
json.field "imageThumbnails" do
|
|
json.array do
|
|
thumbnail = attachment["image"]["thumbnails"][0].as_h
|
|
width = thumbnail["width"].as_i
|
|
height = thumbnail["height"].as_i
|
|
aspect_ratio = (width.to_f / height.to_f)
|
|
url = thumbnail["url"].as_s.gsub(/=w\d+-h\d+(-p)?(-nd)?(-df)?(-rwa)?/, "=s640")
|
|
|
|
qualities = {320, 560, 640, 1280, 2000}
|
|
|
|
qualities.each do |quality|
|
|
json.object do
|
|
json.field "url", url.gsub(/=s\d+/, "=s#{quality}")
|
|
json.field "width", quality
|
|
json.field "height", (quality / aspect_ratio).ceil.to_i
|
|
end
|
|
end
|
|
end
|
|
end
|
|
# TODO
|
|
# when .has_key?("pollRenderer")
|
|
# attachment = attachment["pollRenderer"]
|
|
# json.field "type", "poll"
|
|
else
|
|
json.field "type", "unknown"
|
|
json.field "error", "Unrecognized attachment type."
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
if comments && (reply_count = (comments["backstageCommentsRenderer"]["moreText"]["simpleText"]? ||
|
|
comments["backstageCommentsRenderer"]["moreText"]["runs"]?.try &.[0]?.try &.["text"]?)
|
|
.try &.as_s.gsub(/\D/, "").to_i?)
|
|
continuation = comments["backstageCommentsRenderer"]["continuations"]?.try &.as_a[0]["nextContinuationData"]["continuation"].as_s
|
|
continuation ||= ""
|
|
|
|
json.field "replies" do
|
|
json.object do
|
|
json.field "replyCount", reply_count
|
|
json.field "continuation", extract_channel_community_cursor(continuation)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
if body["continuations"]?
|
|
continuation = body["continuations"][0]["nextContinuationData"]["continuation"].as_s
|
|
json.field "continuation", extract_channel_community_cursor(continuation)
|
|
end
|
|
end
|
|
end
|
|
|
|
if format == "html"
|
|
response = JSON.parse(response)
|
|
content_html = template_youtube_comments(response, locale, thin_mode)
|
|
|
|
response = JSON.build do |json|
|
|
json.object do
|
|
json.field "contentHtml", content_html
|
|
end
|
|
end
|
|
end
|
|
|
|
return response
|
|
end
|
|
|
|
def produce_channel_community_continuation(ucid, cursor)
|
|
object = {
|
|
"80226972:embedded" => {
|
|
"2:string" => ucid,
|
|
"3:string" => cursor || "",
|
|
},
|
|
}
|
|
|
|
continuation = object.try { |i| Protodec::Any.cast_json(object) }
|
|
.try { |i| Protodec::Any.from_json(i) }
|
|
.try { |i| Base64.urlsafe_encode(i) }
|
|
.try { |i| URI.encode_www_form(i) }
|
|
|
|
return continuation
|
|
end
|
|
|
|
def extract_channel_community_cursor(continuation)
|
|
object = URI.decode_www_form(continuation)
|
|
.try { |i| Base64.decode(i) }
|
|
.try { |i| IO::Memory.new(i) }
|
|
.try { |i| Protodec::Any.parse(i) }
|
|
.try { |i| i["80226972:0:embedded"]["3:1:base64"].as_h }
|
|
|
|
if object["53:2:embedded"]?.try &.["3:0:embedded"]?
|
|
object["53:2:embedded"]["3:0:embedded"]["2:0:string"] = object["53:2:embedded"]["3:0:embedded"]
|
|
.try { |i| i["2:0:base64"].as_h }
|
|
.try { |i| Protodec::Any.cast_json(i) }
|
|
.try { |i| Protodec::Any.from_json(i) }
|
|
.try { |i| Base64.urlsafe_encode(i, padding: false) }
|
|
|
|
object["53:2:embedded"]["3:0:embedded"].as_h.delete("2:0:base64")
|
|
end
|
|
|
|
cursor = Protodec::Any.cast_json(object)
|
|
.try { |i| Protodec::Any.from_json(i) }
|
|
.try { |i| Base64.urlsafe_encode(i) }
|
|
|
|
cursor
|
|
end
|
|
|
|
def get_about_info(ucid, locale)
|
|
result = YT_POOL.client &.get("/channel/#{ucid}/about?gl=US&hl=en")
|
|
if result.status_code != 200
|
|
result = YT_POOL.client &.get("/user/#{ucid}/about?gl=US&hl=en")
|
|
end
|
|
|
|
if md = result.headers["location"]?.try &.match(/\/channel\/(?<ucid>UC[a-zA-Z0-9_-]{22})/)
|
|
raise ChannelRedirect.new(channel_id: md["ucid"])
|
|
end
|
|
|
|
if result.status_code != 200
|
|
raise InfoException.new("This channel does not exist.")
|
|
end
|
|
|
|
about = XML.parse_html(result.body)
|
|
if about.xpath_node(%q(//div[contains(@class, "channel-empty-message")]))
|
|
raise InfoException.new("This channel does not exist.")
|
|
end
|
|
|
|
initdata = extract_initial_data(result.body)
|
|
if initdata.empty?
|
|
error_message = about.xpath_node(%q(//div[@class="yt-alert-content"])).try &.content.strip
|
|
error_message ||= translate(locale, "Could not get channel info.")
|
|
raise InfoException.new(error_message)
|
|
end
|
|
|
|
author = about.xpath_node(%q(//meta[@name="title"])).not_nil!["content"]
|
|
author_url = about.xpath_node(%q(//link[@rel="canonical"])).not_nil!["href"]
|
|
author_thumbnail = about.xpath_node(%q(//link[@rel="image_src"])).not_nil!["href"]
|
|
|
|
ucid = about.xpath_node(%q(//meta[@itemprop="channelId"])).not_nil!["content"]
|
|
|
|
# Raises a KeyError on failure.
|
|
banners = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
|
|
banner = banners.try &.[-1]?.try &.["url"].as_s?
|
|
|
|
# if banner.includes? "channels/c4/default_banner"
|
|
# banner = nil
|
|
# end
|
|
|
|
description = initdata["metadata"]["channelMetadataRenderer"]?.try &.["description"]?.try &.as_s? || ""
|
|
description_html = HTML.escape(description).gsub("\n", "<br>")
|
|
|
|
paid = about.xpath_node(%q(//meta[@itemprop="paid"])).not_nil!["content"] == "True"
|
|
is_family_friendly = about.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True"
|
|
allowed_regions = about.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",")
|
|
|
|
related_channels = initdata["contents"]["twoColumnBrowseResultsRenderer"]
|
|
.["secondaryContents"]?.try &.["browseSecondaryContentsRenderer"]["contents"][0]?
|
|
.try &.["verticalChannelSectionRenderer"]?.try &.["items"]?.try &.as_a.map do |node|
|
|
renderer = node["miniChannelRenderer"]?
|
|
related_id = renderer.try &.["channelId"]?.try &.as_s?
|
|
related_id ||= ""
|
|
|
|
related_title = renderer.try &.["title"]?.try &.["simpleText"]?.try &.as_s?
|
|
related_title ||= ""
|
|
|
|
related_author_url = renderer.try &.["navigationEndpoint"]?.try &.["commandMetadata"]?.try &.["webCommandMetadata"]?
|
|
.try &.["url"]?.try &.as_s?
|
|
related_author_url ||= ""
|
|
|
|
related_author_thumbnails = renderer.try &.["thumbnail"]?.try &.["thumbnails"]?.try &.as_a?
|
|
related_author_thumbnails ||= [] of JSON::Any
|
|
|
|
related_author_thumbnail = ""
|
|
if related_author_thumbnails.size > 0
|
|
related_author_thumbnail = related_author_thumbnails[-1]["url"]?.try &.as_s?
|
|
related_author_thumbnail ||= ""
|
|
end
|
|
|
|
AboutRelatedChannel.new({
|
|
ucid: related_id,
|
|
author: related_title,
|
|
author_url: related_author_url,
|
|
author_thumbnail: related_author_thumbnail,
|
|
})
|
|
end
|
|
related_channels ||= [] of AboutRelatedChannel
|
|
|
|
total_views = 0_i64
|
|
joined = Time.unix(0)
|
|
tabs = [] of String
|
|
auto_generated = false
|
|
|
|
tabs_json = initdata["contents"]["twoColumnBrowseResultsRenderer"]["tabs"]?.try &.as_a?
|
|
if !tabs_json.nil?
|
|
# Retrieve information from the tabs array. The index we are looking for varies between channels.
|
|
tabs_json.each do |node|
|
|
# Try to find the about section which is located in only one of the tabs.
|
|
channel_about_meta = node["tabRenderer"]?.try &.["content"]?.try &.["sectionListRenderer"]?
|
|
.try &.["contents"]?.try &.[0]?.try &.["itemSectionRenderer"]?.try &.["contents"]?
|
|
.try &.[0]?.try &.["channelAboutFullMetadataRenderer"]?
|
|
|
|
if !channel_about_meta.nil?
|
|
total_views = channel_about_meta["viewCountText"]?.try &.["simpleText"]?.try &.as_s.gsub(/\D/, "").to_i64? || 0_i64
|
|
|
|
# The joined text is split to several sub strings. The reduce joins those strings before parsing the date.
|
|
joined = channel_about_meta["joinedDateText"]?.try &.["runs"]?.try &.as_a.reduce("") { |acc, node| acc + node["text"].as_s }
|
|
.try { |text| Time.parse(text, "Joined %b %-d, %Y", Time::Location.local) } || Time.unix(0)
|
|
|
|
# Auto-generated channels
|
|
# https://support.google.com/youtube/answer/2579942
|
|
# For auto-generated channels, channel_about_meta only has ["description"]["simpleText"] and ["primaryLinks"][0]["title"]["simpleText"]
|
|
if (channel_about_meta["primaryLinks"]?.try &.size || 0) == 1 && (channel_about_meta["primaryLinks"][0]?) &&
|
|
(channel_about_meta["primaryLinks"][0]["title"]?.try &.["simpleText"]?.try &.as_s? || "") == "Auto-generated by YouTube"
|
|
auto_generated = true
|
|
end
|
|
end
|
|
end
|
|
tabs = tabs_json.reject { |node| node["tabRenderer"]?.nil? }.map { |node| node["tabRenderer"]["title"].as_s.downcase }
|
|
end
|
|
|
|
sub_count = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["subscriberCountText"]?.try &.["simpleText"]?.try &.as_s?
|
|
.try { |text| short_text_to_number(text.split(" ")[0]) } || 0
|
|
|
|
AboutChannel.new({
|
|
ucid: ucid,
|
|
author: author,
|
|
auto_generated: auto_generated,
|
|
author_url: author_url,
|
|
author_thumbnail: author_thumbnail,
|
|
banner: banner,
|
|
description_html: description_html,
|
|
paid: paid,
|
|
total_views: total_views,
|
|
sub_count: sub_count,
|
|
joined: joined,
|
|
is_family_friendly: is_family_friendly,
|
|
allowed_regions: allowed_regions,
|
|
related_channels: related_channels,
|
|
tabs: tabs,
|
|
})
|
|
end
|
|
|
|
def get_channel_videos_response(ucid, page = 1, auto_generated = nil, sort_by = "newest")
|
|
url = produce_channel_videos_url(ucid, page, auto_generated: auto_generated, sort_by: sort_by, v2: true)
|
|
return YT_POOL.client &.get(url)
|
|
end
|
|
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def get_60_videos(ucid, author, page, auto_generated, sort_by = "newest")
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videos = [] of SearchVideo
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|
|
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2.times do |i|
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response = get_channel_videos_response(ucid, page * 2 + (i - 1), auto_generated: auto_generated, sort_by: sort_by)
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initial_data = JSON.parse(response.body).as_a.find &.["response"]?
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break if !initial_data
|
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videos.concat extract_videos(initial_data.as_h, author, ucid)
|
|
end
|
|
|
|
return videos.size, videos
|
|
end
|
|
|
|
def get_latest_videos(ucid)
|
|
response = get_channel_videos_response(ucid, 1)
|
|
initial_data = JSON.parse(response.body).as_a.find &.["response"]?
|
|
return [] of SearchVideo if !initial_data
|
|
author = initial_data["response"]?.try &.["metadata"]?.try &.["channelMetadataRenderer"]?.try &.["title"]?.try &.as_s
|
|
items = extract_videos(initial_data.as_h, author, ucid)
|
|
|
|
return items
|
|
end
|