Split helpers.cr into multiple files
Omar Roth
6 years ago
parent
0685d3c7c2
commit
90d661e4a7
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class InvidiousChannel
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add_mapping({
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id: String,
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author: String,
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updated: Time,
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})
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end
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class ChannelVideo
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add_mapping({
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id: String,
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title: String,
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published: Time,
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updated: Time,
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ucid: String,
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author: String,
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})
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end
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def get_channel(id, client, db, refresh = true, pull_all_videos = true)
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if db.query_one?("SELECT EXISTS (SELECT true FROM channels WHERE id = $1)", id, as: Bool)
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channel = db.query_one("SELECT * FROM channels WHERE id = $1", id, as: InvidiousChannel)
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if refresh && Time.now - channel.updated > 10.minutes
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channel = fetch_channel(id, client, db, 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 updated = $3", channel_array)
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end
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else
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channel = fetch_channel(id, client, db, pull_all_videos)
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args = arg_array(channel.to_a)
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db.exec("INSERT INTO channels VALUES (#{args})", channel.to_a)
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end
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return channel
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end
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def fetch_channel(ucid, client, db, pull_all_videos = true)
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rss = 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 "Deleted or invalid channel"
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end
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author = author.content
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if !pull_all_videos
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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(entry.xpath_node("published").not_nil!.content, "%FT%X%z", Time::Location.local)
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updated = Time.parse(entry.xpath_node("updated").not_nil!.content, "%FT%X%z", Time::Location.local)
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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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video = ChannelVideo.new(video_id, title, published, Time.now, ucid, author)
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db.exec("UPDATE users SET notifications = notifications || $1 \
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WHERE updated < $2 AND $3 = ANY(subscriptions) AND $1 <> ALL(notifications)", video.id, video.published, ucid)
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video_array = video.to_a
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args = arg_array(video_array)
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db.exec("INSERT INTO channel_videos VALUES (#{args}) \
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ON CONFLICT (id) DO UPDATE SET title = $2, published = $3, \
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updated = $4, ucid = $5, author = $6", video_array)
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end
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else
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videos = [] of ChannelVideo
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page = 1
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loop do
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url = produce_videos_url(ucid, page)
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response = client.get(url)
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json = JSON.parse(response.body)
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content_html = json["content_html"].as_s
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if content_html.empty?
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# If we don't get anything, move on
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break
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end
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document = XML.parse_html(content_html)
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document.xpath_nodes(%q(//li[contains(@class, "feed-item-container")])).each do |item|
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anchor = item.xpath_node(%q(.//h3[contains(@class,"yt-lockup-title")]/a))
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if !anchor
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raise "could not find anchor"
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end
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title = anchor.content.strip
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video_id = anchor["href"].lchop("/watch?v=")
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published = item.xpath_node(%q(.//div[@class="yt-lockup-meta"]/ul/li[1]))
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if !published
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# This happens on Youtube red videos, here we just skip them
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next
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end
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published = published.content
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published = decode_date(published)
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videos << ChannelVideo.new(video_id, title, published, Time.now, ucid, author)
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end
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if document.xpath_nodes(%q(//li[contains(@class, "channels-content-item")])).size < 30
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break
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end
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page += 1
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end
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video_ids = [] of String
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videos.each do |video|
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db.exec("UPDATE users SET notifications = notifications || $1 \
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WHERE updated < $2 AND $3 = ANY(subscriptions) AND $1 <> ALL(notifications)", video.id, video.published, ucid)
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video_ids << video.id
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video_array = video.to_a
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args = arg_array(video_array)
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db.exec("INSERT INTO channel_videos VALUES (#{args}) ON CONFLICT (id) DO NOTHING", video_array)
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end
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# When a video is deleted from a channel, we find and remove it here
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db.exec("DELETE FROM channel_videos * WHERE NOT id = ANY ('{#{video_ids.map { |a| %("#{a}") }.join(",")}}') AND ucid = $1", ucid)
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end
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channel = InvidiousChannel.new(ucid, author, Time.now)
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return channel
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end
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@ -0,0 +1,247 @@
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class RedditThing
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JSON.mapping({
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kind: String,
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data: RedditComment | RedditLink | RedditMore | RedditListing,
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})
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end
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class RedditComment
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JSON.mapping({
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author: String,
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body_html: String,
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replies: RedditThing | String,
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score: Int32,
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depth: Int32,
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})
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end
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class RedditLink
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JSON.mapping({
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author: String,
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score: Int32,
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subreddit: String,
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num_comments: Int32,
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id: String,
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permalink: String,
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title: String,
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})
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end
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class RedditMore
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JSON.mapping({
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children: Array(String),
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count: Int32,
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depth: Int32,
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})
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end
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class RedditListing
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JSON.mapping({
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children: Array(RedditThing),
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modhash: String,
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})
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end
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def get_reddit_comments(id, client, headers)
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query = "(url:3D#{id}%20OR%20url:#{id})%20(site:youtube.com%20OR%20site:youtu.be)"
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search_results = client.get("/search.json?q=#{query}", headers)
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if search_results.status_code == 200
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search_results = RedditThing.from_json(search_results.body)
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thread = search_results.data.as(RedditListing).children.sort_by { |child| child.data.as(RedditLink).score }[-1]
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thread = thread.data.as(RedditLink)
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result = client.get("/r/#{thread.subreddit}/comments/#{thread.id}.json?limit=100&sort=top", headers).body
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result = Array(RedditThing).from_json(result)
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elsif search_results.status_code == 302
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result = client.get(search_results.headers["Location"], headers).body
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result = Array(RedditThing).from_json(result)
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thread = result[0].data.as(RedditListing).children[0].data.as(RedditLink)
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else
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raise "Got error code #{search_results.status_code}"
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end
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comments = result[1].data.as(RedditListing).children
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return comments, thread
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end
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def template_youtube_comments(comments)
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html = ""
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root = comments["comments"].as_a
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root.each do |child|
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if child["replies"]?
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replies_html = <<-END_HTML
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<div id="replies" class="pure-g">
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<div class="pure-u-md-1-24"></div>
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<div class="pure-u-md-23-24">
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<p>
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<a href="javascript:void(0)" data-continuation="#{child["replies"]["continuation"]}"
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onclick="load_comments(this)">View #{child["replies"]["replyCount"]} replies</a>
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</p>
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</div>
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</div>
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END_HTML
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end
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html += <<-END_HTML
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<div class="pure-g">
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<div class="pure-u-1">
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<p>
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<a href="javascript:void(0)" onclick="toggle(this)">[ - ]</a>
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<i class="icon ion-ios-thumbs-up"></i> #{child["likeCount"]}
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<b><a href="#{child["authorUrl"]}">#{child["author"]}</a></b>
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</p>
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<div>
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#{child["content"]}
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#{replies_html}
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</div>
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</div>
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</div>
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END_HTML
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end
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if comments["continuation"]?
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html += <<-END_HTML
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<div class="pure-g">
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<div class="pure-u-1">
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<p>
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<a href="javascript:void(0)" data-continuation="#{comments["continuation"]}"
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onclick="load_comments(this)">Load more</a>
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</p>
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</div>
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</div>
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END_HTML
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end
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return html
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end
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def template_reddit_comments(root)
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html = ""
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root.each do |child|
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if child.data.is_a?(RedditComment)
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child = child.data.as(RedditComment)
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author = child.author
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score = child.score
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body_html = HTML.unescape(child.body_html)
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replies_html = ""
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if child.replies.is_a?(RedditThing)
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replies = child.replies.as(RedditThing)
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replies_html = template_reddit_comments(replies.data.as(RedditListing).children)
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end
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content = <<-END_HTML
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<p>
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<a href="javascript:void(0)" onclick="toggle(this)">[ - ]</a>
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<i class="icon ion-ios-thumbs-up"></i> #{score}
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<b><a href="https://www.reddit.com/user/#{author}">#{author}</a></b>
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</p>
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<div>
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#{body_html}
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#{replies_html}
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</div>
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END_HTML
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if child.depth > 0
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html += <<-END_HTML
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<div class="pure-g">
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<div class="pure-u-1-24">
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</div>
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<div class="pure-u-23-24">
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#{content}
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</div>
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</div>
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END_HTML
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else
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html += <<-END_HTML
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<div class="pure-g">
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<div class="pure-u-1">
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#{content}
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</div>
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</div>
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END_HTML
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end
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end
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end
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return html
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end
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def add_alt_links(html)
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alt_links = [] of {String, String}
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# This is painful but likely the only way to accomplish this in Crystal,
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# as Crystigiri and others are not able to insert XML Nodes into a document.
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# The goal here is to use as little regex as possible
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html.scan(/<a[^>]*>([^<]+)<\/a>/) do |match|
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anchor = XML.parse_html(match[0])
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anchor = anchor.xpath_node("//a").not_nil!
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url = URI.parse(anchor["href"])
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if ["www.youtube.com", "m.youtube.com"].includes?(url.host)
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if url.path == "/redirect"
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params = HTTP::Params.parse(url.query.not_nil!)
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alt_url = params["q"]?
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alt_url ||= "/"
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else
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alt_url = url.full_path
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end
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alt_link = <<-END_HTML
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<a href="#{alt_url}">
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<i class="icon ion-ios-link"></i>
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</a>
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END_HTML
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elsif url.host == "youtu.be"
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alt_link = <<-END_HTML
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<a href="/watch?v=#{url.path.try &.lchop("/")}&#{url.query}">
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<i class="icon ion-ios-link"></i>
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</a>
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END_HTML
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elsif url.to_s == "#"
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length_seconds = decode_length_seconds(anchor.content)
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alt_anchor = <<-END_HTML
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<a href="javascript:void(0)" onclick="player.currentTime(#{length_seconds})">#{anchor.content}</a>
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END_HTML
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html = html.sub(anchor.to_s, alt_anchor)
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next
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else
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alt_link = ""
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end
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alt_links << {anchor.to_s, alt_link}
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end
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alt_links.each do |original, alternate|
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html = html.sub(original, original + alternate)
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end
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return html
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end
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def fill_links(html, scheme, host)
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html = XML.parse_html(html)
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html.xpath_nodes("//a").each do |match|
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url = URI.parse(match["href"])
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# Reddit links don't have host
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if !url.host && !match["href"].starts_with?("javascript") && !url.to_s.ends_with? "#"
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url.scheme = scheme
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url.host = host
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match["href"] = url
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end
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end
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if host == "www.youtube.com"
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html = html.xpath_node(%q(//p[@id="eow-description"])).not_nil!.to_xml
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else
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html = html.to_xml(options: XML::SaveOptions::NO_DECL)
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end
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html
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end
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File diff suppressed because it is too large
Load Diff
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class Config
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YAML.mapping({
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crawl_threads: Int32,
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channel_threads: Int32,
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video_threads: Int32,
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db: NamedTuple(
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user: String,
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password: String,
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host: String,
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port: Int32,
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dbname: String,
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),
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dl_api_key: String?,
|
||||||
|
https_only: Bool?,
|
||||||
|
hmac_key: String?,
|
||||||
|
})
|
||||||
|
end
|
||||||
|
|
||||||
|
class FilteredCompressHandler < Kemal::Handler
|
||||||
|
exclude ["/videoplayback", "/api/*"]
|
||||||
|
|
||||||
|
def call(env)
|
||||||
|
return call_next env if exclude_match? env
|
||||||
|
|
||||||
|
{% if flag?(:without_zlib) %}
|
||||||
|
call_next env
|
||||||
|
{% else %}
|
||||||
|
request_headers = env.request.headers
|
||||||
|
|
||||||
|
if request_headers.includes_word?("Accept-Encoding", "gzip")
|
||||||
|
env.response.headers["Content-Encoding"] = "gzip"
|
||||||
|
env.response.output = Gzip::Writer.new(env.response.output, sync_close: true)
|
||||||
|
elsif request_headers.includes_word?("Accept-Encoding", "deflate")
|
||||||
|
env.response.headers["Content-Encoding"] = "deflate"
|
||||||
|
env.response.output = Flate::Writer.new(env.response.output, sync_close: true)
|
||||||
|
end
|
||||||
|
|
||||||
|
call_next env
|
||||||
|
{% end %}
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def rank_videos(db, n, filter, url)
|
||||||
|
top = [] of {Float64, String}
|
||||||
|
|
||||||
|
db.query("SELECT id, wilson_score, published FROM videos WHERE views > 5000 ORDER BY published DESC LIMIT 1000") do |rs|
|
||||||
|
rs.each do
|
||||||
|
id = rs.read(String)
|
||||||
|
wilson_score = rs.read(Float64)
|
||||||
|
published = rs.read(Time)
|
||||||
|
|
||||||
|
# Exponential decay, older videos tend to rank lower
|
||||||
|
temperature = wilson_score * Math.exp(-0.000005*((Time.now - published).total_minutes))
|
||||||
|
top << {temperature, id}
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
top.sort!
|
||||||
|
|
||||||
|
# Make hottest come first
|
||||||
|
top.reverse!
|
||||||
|
top = top.map { |a, b| b }
|
||||||
|
|
||||||
|
if filter
|
||||||
|
language_list = [] of String
|
||||||
|
top.each do |id|
|
||||||
|
if language_list.size == n
|
||||||
|
break
|
||||||
|
else
|
||||||
|
client = make_client(url)
|
||||||
|
begin
|
||||||
|
video = get_video(id, db)
|
||||||
|
rescue ex
|
||||||
|
next
|
||||||
|
end
|
||||||
|
|
||||||
|
if video.language
|
||||||
|
language = video.language
|
||||||
|
else
|
||||||
|
description = XML.parse(video.description)
|
||||||
|
content = [video.title, description.content].join(" ")
|
||||||
|
content = content[0, 10000]
|
||||||
|
|
||||||
|
results = DetectLanguage.detect(content)
|
||||||
|
language = results[0].language
|
||||||
|
|
||||||
|
db.exec("UPDATE videos SET language = $1 WHERE id = $2", language, id)
|
||||||
|
end
|
||||||
|
|
||||||
|
if language == "en"
|
||||||
|
language_list << id
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
return language_list
|
||||||
|
else
|
||||||
|
return top[0..n - 1]
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def login_req(login_form, f_req)
|
||||||
|
data = {
|
||||||
|
"pstMsg" => "1",
|
||||||
|
"checkConnection" => "youtube",
|
||||||
|
"checkedDomains" => "youtube",
|
||||||
|
"hl" => "en",
|
||||||
|
"deviceinfo" => %q([null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]),
|
||||||
|
"f.req" => f_req,
|
||||||
|
"flowName" => "GlifWebSignIn",
|
||||||
|
"flowEntry" => "ServiceLogin",
|
||||||
|
}
|
||||||
|
|
||||||
|
data = login_form.merge(data)
|
||||||
|
|
||||||
|
return HTTP::Params.encode(data)
|
||||||
|
end
|
||||||
|
|
||||||
|
def produce_playlist_url(ucid, index)
|
||||||
|
ucid = ucid.lchop("UC")
|
||||||
|
ucid = "VLUU" + ucid
|
||||||
|
|
||||||
|
continuation = write_var_int(index)
|
||||||
|
continuation.unshift(0x08_u8)
|
||||||
|
slice = continuation.to_unsafe.to_slice(continuation.size)
|
||||||
|
|
||||||
|
continuation = Base64.urlsafe_encode(slice, false)
|
||||||
|
continuation = "PT:" + continuation
|
||||||
|
continuation = continuation.bytes
|
||||||
|
continuation.unshift(0x7a_u8, continuation.size.to_u8)
|
||||||
|
|
||||||
|
slice = continuation.to_unsafe.to_slice(continuation.size)
|
||||||
|
continuation = Base64.urlsafe_encode(slice)
|
||||||
|
continuation = URI.escape(continuation)
|
||||||
|
continuation = continuation.bytes
|
||||||
|
continuation.unshift(continuation.size.to_u8)
|
||||||
|
|
||||||
|
continuation.unshift(ucid.size.to_u8)
|
||||||
|
continuation = ucid.bytes + continuation
|
||||||
|
continuation.unshift(0x12.to_u8, ucid.size.to_u8)
|
||||||
|
continuation.unshift(0xe2_u8, 0xa9_u8, 0x85_u8, 0xb2_u8, 2_u8, continuation.size.to_u8)
|
||||||
|
|
||||||
|
slice = continuation.to_unsafe.to_slice(continuation.size)
|
||||||
|
continuation = Base64.urlsafe_encode(slice)
|
||||||
|
continuation = URI.escape(continuation)
|
||||||
|
|
||||||
|
url = "/browse_ajax?action_continuation=1&continuation=#{continuation}"
|
||||||
|
|
||||||
|
return url
|
||||||
|
end
|
||||||
|
|
||||||
|
def produce_videos_url(ucid, page = 1)
|
||||||
|
page = "#{page}"
|
||||||
|
|
||||||
|
meta = "\x12\x06videos \x00\x30\x02\x38\x01\x60\x01\x6a\x00\x7a"
|
||||||
|
meta += page.size.to_u8.unsafe_chr
|
||||||
|
meta += page
|
||||||
|
meta += "\xb8\x01\x00"
|
||||||
|
|
||||||
|
meta = Base64.urlsafe_encode(meta)
|
||||||
|
meta = URI.escape(meta)
|
||||||
|
|
||||||
|
continuation = "\x12"
|
||||||
|
continuation += ucid.size.to_u8.unsafe_chr
|
||||||
|
continuation += ucid
|
||||||
|
continuation += "\x1a"
|
||||||
|
continuation += meta.size.to_u8.unsafe_chr
|
||||||
|
continuation += meta
|
||||||
|
|
||||||
|
continuation = continuation.size.to_u8.unsafe_chr + continuation
|
||||||
|
continuation = "\xe2\xa9\x85\xb2\x02" + continuation
|
||||||
|
|
||||||
|
continuation = Base64.urlsafe_encode(continuation)
|
||||||
|
continuation = URI.escape(continuation)
|
||||||
|
|
||||||
|
url = "/browse_ajax?continuation=#{continuation}"
|
||||||
|
|
||||||
|
return url
|
||||||
|
end
|
||||||
|
|
||||||
|
def read_var_int(bytes)
|
||||||
|
numRead = 0
|
||||||
|
result = 0
|
||||||
|
|
||||||
|
read = bytes[numRead]
|
||||||
|
|
||||||
|
if bytes.size == 1
|
||||||
|
result = bytes[0].to_i32
|
||||||
|
else
|
||||||
|
while ((read & 0b10000000) != 0)
|
||||||
|
read = bytes[numRead].to_u64
|
||||||
|
value = (read & 0b01111111)
|
||||||
|
result |= (value << (7 * numRead))
|
||||||
|
|
||||||
|
numRead += 1
|
||||||
|
if numRead > 5
|
||||||
|
raise "VarInt is too big"
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
return result
|
||||||
|
end
|
||||||
|
|
||||||
|
def write_var_int(value : Int)
|
||||||
|
bytes = [] of UInt8
|
||||||
|
value = value.to_u32
|
||||||
|
|
||||||
|
if value == 0
|
||||||
|
bytes = [0_u8]
|
||||||
|
else
|
||||||
|
while value != 0
|
||||||
|
temp = (value & 0b01111111).to_u8
|
||||||
|
value = value >> 7
|
||||||
|
|
||||||
|
if value != 0
|
||||||
|
temp |= 0b10000000
|
||||||
|
end
|
||||||
|
|
||||||
|
bytes << temp
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
return bytes
|
||||||
|
end
|
||||||
|
|
||||||
|
def generate_captcha(key)
|
||||||
|
minute = Random::Secure.rand(12)
|
||||||
|
minute_angle = minute * 30
|
||||||
|
minute = minute * 5
|
||||||
|
|
||||||
|
hour = Random::Secure.rand(12)
|
||||||
|
hour_angle = hour * 30 + minute_angle.to_f / 12
|
||||||
|
if hour == 0
|
||||||
|
hour = 12
|
||||||
|
end
|
||||||
|
|
||||||
|
clock_svg = <<-END_SVG
|
||||||
|
<svg viewBox="0 0 100 100" width="200px">
|
||||||
|
<circle cx="50" cy="50" r="45" fill="#eee" stroke="black" stroke-width="2"></circle>
|
||||||
|
|
||||||
|
<text x="69" y="20.091" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 1</text>
|
||||||
|
<text x="82.909" y="34" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 2</text>
|
||||||
|
<text x="88" y="53" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 3</text>
|
||||||
|
<text x="82.909" y="72" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 4</text>
|
||||||
|
<text x="69" y="85.909" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 5</text>
|
||||||
|
<text x="50" y="91" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 6</text>
|
||||||
|
<text x="31" y="85.909" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 7</text>
|
||||||
|
<text x="17.091" y="72" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 8</text>
|
||||||
|
<text x="12" y="53" text-anchor="middle" fill="black" font-family="Arial" font-size="10px"> 9</text>
|
||||||
|
<text x="17.091" y="34" text-anchor="middle" fill="black" font-family="Arial" font-size="10px">10</text>
|
||||||
|
<text x="31" y="20.091" text-anchor="middle" fill="black" font-family="Arial" font-size="10px">11</text>
|
||||||
|
<text x="50" y="15" text-anchor="middle" fill="black" font-family="Arial" font-size="10px">12</text>
|
||||||
|
|
||||||
|
<circle cx="50" cy="50" r="3" fill="black"></circle>
|
||||||
|
<line id="minute" transform="rotate(#{minute_angle}, 50, 50)" x1="50" y1="50" x2="50" y2="16" fill="black" stroke="black" stroke-width="2"></line>
|
||||||
|
<line id="hour" transform="rotate(#{hour_angle}, 50, 50)" x1="50" y1="50" x2="50" y2="24" fill="black" stroke="black" stroke-width="2"></line>
|
||||||
|
</svg>
|
||||||
|
END_SVG
|
||||||
|
|
||||||
|
challenge = ""
|
||||||
|
convert = Process.run(%(convert -density 1200 -resize 400x400 -background none svg:- png:-), shell: true,
|
||||||
|
input: IO::Memory.new(clock_svg), output: Process::Redirect::Pipe) do |proc|
|
||||||
|
challenge = proc.output.gets_to_end
|
||||||
|
challenge = Base64.strict_encode(challenge)
|
||||||
|
challenge = "data:image/png;base64,#{challenge}"
|
||||||
|
end
|
||||||
|
|
||||||
|
answer = "#{hour}:#{minute.to_s.rjust(2, '0')}"
|
||||||
|
token = OpenSSL::HMAC.digest(:sha256, key, answer)
|
||||||
|
token = Base64.encode(token)
|
||||||
|
|
||||||
|
return {challenge: challenge, token: token}
|
||||||
|
end
|
||||||
@ -0,0 +1,18 @@
|
|||||||
|
macro add_mapping(mapping)
|
||||||
|
def initialize({{*mapping.keys.map { |id| "@#{id}".id }}})
|
||||||
|
end
|
||||||
|
|
||||||
|
def to_a
|
||||||
|
return [{{*mapping.keys.map { |id| "@#{id}".id }}}]
|
||||||
|
end
|
||||||
|
|
||||||
|
DB.mapping({{mapping}})
|
||||||
|
end
|
||||||
|
|
||||||
|
macro templated(filename)
|
||||||
|
render "src/invidious/views/#{{{filename}}}.ecr", "src/invidious/views/layout.ecr"
|
||||||
|
end
|
||||||
|
|
||||||
|
macro rendered(filename)
|
||||||
|
render "src/invidious/views/#{{{filename}}}.ecr"
|
||||||
|
end
|
||||||
@ -0,0 +1,129 @@
|
|||||||
|
# See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
|
||||||
|
def ci_lower_bound(pos, n)
|
||||||
|
if n == 0
|
||||||
|
return 0.0
|
||||||
|
end
|
||||||
|
|
||||||
|
# z value here represents a confidence level of 0.95
|
||||||
|
z = 1.96
|
||||||
|
phat = 1.0*pos/n
|
||||||
|
|
||||||
|
return (phat + z*z/(2*n) - z * Math.sqrt((phat*(1 - phat) + z*z/(4*n))/n))/(1 + z*z/n)
|
||||||
|
end
|
||||||
|
|
||||||
|
def elapsed_text(elapsed)
|
||||||
|
millis = elapsed.total_milliseconds
|
||||||
|
return "#{millis.round(2)}ms" if millis >= 1
|
||||||
|
|
||||||
|
"#{(millis * 1000).round(2)}µs"
|
||||||
|
end
|
||||||
|
|
||||||
|
def make_client(url)
|
||||||
|
context = OpenSSL::SSL::Context::Client.new
|
||||||
|
context.add_options(
|
||||||
|
OpenSSL::SSL::Options::ALL |
|
||||||
|
OpenSSL::SSL::Options::NO_SSL_V2 |
|
||||||
|
OpenSSL::SSL::Options::NO_SSL_V3
|
||||||
|
)
|
||||||
|
client = HTTP::Client.new(url, context)
|
||||||
|
client.read_timeout = 10.seconds
|
||||||
|
client.connect_timeout = 10.seconds
|
||||||
|
return client
|
||||||
|
end
|
||||||
|
|
||||||
|
def decode_length_seconds(string)
|
||||||
|
length_seconds = string.split(":").map { |a| a.to_i }
|
||||||
|
length_seconds = [0] * (3 - length_seconds.size) + length_seconds
|
||||||
|
length_seconds = Time::Span.new(length_seconds[0], length_seconds[1], length_seconds[2])
|
||||||
|
length_seconds = length_seconds.total_seconds.to_i
|
||||||
|
|
||||||
|
return length_seconds
|
||||||
|
end
|
||||||
|
|
||||||
|
def decode_time(string)
|
||||||
|
time = string.try &.to_f?
|
||||||
|
|
||||||
|
if !time
|
||||||
|
hours = /(?<hours>\d+)h/.match(string).try &.["hours"].try &.to_f
|
||||||
|
hours ||= 0
|
||||||
|
|
||||||
|
minutes = /(?<minutes>\d+)m(?!s)/.match(string).try &.["minutes"].try &.to_f
|
||||||
|
minutes ||= 0
|
||||||
|
|
||||||
|
seconds = /(?<seconds>\d+)s/.match(string).try &.["seconds"].try &.to_f
|
||||||
|
seconds ||= 0
|
||||||
|
|
||||||
|
millis = /(?<millis>\d+)ms/.match(string).try &.["millis"].try &.to_f
|
||||||
|
millis ||= 0
|
||||||
|
|
||||||
|
time = hours * 3600 + minutes * 60 + seconds + millis / 1000
|
||||||
|
end
|
||||||
|
|
||||||
|
return time
|
||||||
|
end
|
||||||
|
|
||||||
|
def decode_date(string : String)
|
||||||
|
# Time matches format "20 hours ago", "40 minutes ago"...
|
||||||
|
date = string.split(" ")[-3, 3]
|
||||||
|
delta = date[0].to_i
|
||||||
|
|
||||||
|
case date[1]
|
||||||
|
when .includes? "minute"
|
||||||
|
delta = delta.minutes
|
||||||
|
when .includes? "hour"
|
||||||
|
delta = delta.hours
|
||||||
|
when .includes? "day"
|
||||||
|
delta = delta.days
|
||||||
|
when .includes? "week"
|
||||||
|
delta = delta.weeks
|
||||||
|
when .includes? "month"
|
||||||
|
delta = delta.months
|
||||||
|
when .includes? "year"
|
||||||
|
delta = delta.years
|
||||||
|
else
|
||||||
|
raise "Could not parse #{string}"
|
||||||
|
end
|
||||||
|
|
||||||
|
return Time.now - delta
|
||||||
|
end
|
||||||
|
|
||||||
|
def recode_date(time : Time)
|
||||||
|
span = Time.now - time
|
||||||
|
|
||||||
|
if span.total_days > 365.0
|
||||||
|
span = {span.total_days / 365, "year"}
|
||||||
|
elsif span.total_days > 30.0
|
||||||
|
span = {span.total_days / 30, "month"}
|
||||||
|
elsif span.total_days > 7.0
|
||||||
|
span = {span.total_days / 7, "week"}
|
||||||
|
elsif span.total_hours > 24.0
|
||||||
|
span = {span.total_days, "day"}
|
||||||
|
elsif span.total_minutes > 60.0
|
||||||
|
span = {span.total_hours, "hour"}
|
||||||
|
else
|
||||||
|
span = {0, "units"}
|
||||||
|
end
|
||||||
|
|
||||||
|
span = {span[0].to_i, span[1]}
|
||||||
|
if span[0] > 1
|
||||||
|
span = {span[0], span[1] + "s"}
|
||||||
|
end
|
||||||
|
|
||||||
|
return span.join(" ")
|
||||||
|
end
|
||||||
|
|
||||||
|
def number_with_separator(number)
|
||||||
|
number.to_s.reverse.gsub(/(\d{3})(?=\d)/, "\\1,").reverse
|
||||||
|
end
|
||||||
|
|
||||||
|
def arg_array(array, start = 1)
|
||||||
|
if array.size == 0
|
||||||
|
args = "NULL"
|
||||||
|
else
|
||||||
|
args = [] of String
|
||||||
|
(start..array.size + start - 1).each { |i| args << "($#{i})" }
|
||||||
|
args = args.join(",")
|
||||||
|
end
|
||||||
|
|
||||||
|
return args
|
||||||
|
end
|
||||||
@ -0,0 +1,136 @@
|
|||||||
|
def crawl_videos(db)
|
||||||
|
ids = Deque(String).new
|
||||||
|
random = Random.new
|
||||||
|
|
||||||
|
search(random.base64(3)).each do |video|
|
||||||
|
ids << video.id
|
||||||
|
end
|
||||||
|
|
||||||
|
loop do
|
||||||
|
if ids.empty?
|
||||||
|
search(random.base64(3)).each do |video|
|
||||||
|
ids << video.id
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
begin
|
||||||
|
id = ids[0]
|
||||||
|
video = get_video(id, db)
|
||||||
|
rescue ex
|
||||||
|
STDOUT << id << " : " << ex.message << "\n"
|
||||||
|
next
|
||||||
|
ensure
|
||||||
|
ids.delete(id)
|
||||||
|
end
|
||||||
|
|
||||||
|
rvs = [] of Hash(String, String)
|
||||||
|
if video.info.has_key?("rvs")
|
||||||
|
video.info["rvs"].split(",").each do |rv|
|
||||||
|
rvs << HTTP::Params.parse(rv).to_h
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
rvs.each do |rv|
|
||||||
|
if rv.has_key?("id") && !db.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", rv["id"], as: Bool)
|
||||||
|
ids.delete(id)
|
||||||
|
ids << rv["id"]
|
||||||
|
if ids.size == 150
|
||||||
|
ids.shift
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
Fiber.yield
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def refresh_channels(db)
|
||||||
|
loop do
|
||||||
|
db.query("SELECT id FROM channels ORDER BY updated") do |rs|
|
||||||
|
rs.each do
|
||||||
|
client = make_client(YT_URL)
|
||||||
|
|
||||||
|
begin
|
||||||
|
id = rs.read(String)
|
||||||
|
channel = fetch_channel(id, client, db, false)
|
||||||
|
db.exec("UPDATE channels SET updated = $1 WHERE id = $2", Time.now, id)
|
||||||
|
rescue ex
|
||||||
|
STDOUT << id << " : " << ex.message << "\n"
|
||||||
|
next
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
Fiber.yield
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def refresh_videos(db)
|
||||||
|
loop do
|
||||||
|
db.query("SELECT id FROM videos ORDER BY updated") do |rs|
|
||||||
|
rs.each do
|
||||||
|
begin
|
||||||
|
id = rs.read(String)
|
||||||
|
video = get_video(id, db)
|
||||||
|
rescue ex
|
||||||
|
STDOUT << id << " : " << ex.message << "\n"
|
||||||
|
next
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
Fiber.yield
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def pull_top_videos(config, db)
|
||||||
|
if config.dl_api_key
|
||||||
|
DetectLanguage.configure do |dl_config|
|
||||||
|
dl_config.api_key = config.dl_api_key.not_nil!
|
||||||
|
end
|
||||||
|
filter = true
|
||||||
|
end
|
||||||
|
|
||||||
|
filter ||= false
|
||||||
|
|
||||||
|
loop do
|
||||||
|
begin
|
||||||
|
top = rank_videos(db, 40, filter, YT_URL)
|
||||||
|
rescue ex
|
||||||
|
next
|
||||||
|
end
|
||||||
|
|
||||||
|
if top.size > 0
|
||||||
|
args = arg_array(top)
|
||||||
|
else
|
||||||
|
next
|
||||||
|
end
|
||||||
|
|
||||||
|
videos = [] of Video
|
||||||
|
|
||||||
|
top.each do |id|
|
||||||
|
begin
|
||||||
|
videos << get_video(id, db)
|
||||||
|
rescue ex
|
||||||
|
next
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
yield videos
|
||||||
|
Fiber.yield
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def update_decrypt_function
|
||||||
|
loop do
|
||||||
|
begin
|
||||||
|
client = make_client(YT_URL)
|
||||||
|
decrypt_function = fetch_decrypt_function(client)
|
||||||
|
rescue ex
|
||||||
|
next
|
||||||
|
end
|
||||||
|
|
||||||
|
yield decrypt_function
|
||||||
|
Fiber.yield
|
||||||
|
end
|
||||||
|
end
|
||||||
@ -0,0 +1,30 @@
|
|||||||
|
def search(query, page = 1)
|
||||||
|
client = make_client(YT_URL)
|
||||||
|
html = client.get("/results?q=#{URI.escape(query)}&page=#{page}&sp=EgIQAVAU").body
|
||||||
|
html = XML.parse_html(html)
|
||||||
|
|
||||||
|
videos = [] of ChannelVideo
|
||||||
|
|
||||||
|
html.xpath_nodes(%q(//ol[@class="item-section"]/li)).each do |item|
|
||||||
|
root = item.xpath_node(%q(div[contains(@class,"yt-lockup-video")]/div))
|
||||||
|
if !root
|
||||||
|
next
|
||||||
|
end
|
||||||
|
|
||||||
|
id = root.xpath_node(%q(.//div[contains(@class,"yt-lockup-thumbnail")]/a/@href)).not_nil!.content.lchop("/watch?v=")
|
||||||
|
|
||||||
|
title = root.xpath_node(%q(.//div[@class="yt-lockup-content"]/h3/a)).not_nil!.content
|
||||||
|
|
||||||
|
author = root.xpath_node(%q(.//div[@class="yt-lockup-content"]/div/a)).not_nil!
|
||||||
|
ucid = author["href"].rpartition("/")[-1]
|
||||||
|
author = author.content
|
||||||
|
|
||||||
|
published = root.xpath_node(%q(.//ul[@class="yt-lockup-meta-info"]/li[1])).not_nil!.content
|
||||||
|
published = decode_date(published)
|
||||||
|
|
||||||
|
video = ChannelVideo.new(id, title, published, Time.now, ucid, author)
|
||||||
|
videos << video
|
||||||
|
end
|
||||||
|
|
||||||
|
return videos
|
||||||
|
end
|
||||||
@ -0,0 +1,65 @@
|
|||||||
|
def fetch_decrypt_function(client, id = "CvFH_6DNRCY")
|
||||||
|
document = client.get("/watch?v=#{id}").body
|
||||||
|
url = document.match(/src="(?<url>\/yts\/jsbin\/player-.{9}\/en_US\/base.js)"/).not_nil!["url"]
|
||||||
|
player = client.get(url).body
|
||||||
|
|
||||||
|
function_name = player.match(/\(b\|\|\(b="signature"\),d.set\(b,(?<name>[a-zA-Z0-9]{2})\(c\)\)\)/).not_nil!["name"]
|
||||||
|
function_body = player.match(/#{function_name}=function\(a\){(?<body>[^}]+)}/).not_nil!["body"]
|
||||||
|
function_body = function_body.split(";")[1..-2]
|
||||||
|
|
||||||
|
var_name = function_body[0][0, 2]
|
||||||
|
|
||||||
|
operations = {} of String => String
|
||||||
|
matches = player.delete("\n").match(/var #{var_name}={(?<op1>[a-zA-Z0-9]{2}:[^}]+}),(?<op2>[a-zA-Z0-9]{2}:[^}]+}),(?<op3>[a-zA-Z0-9]{2}:[^}]+})};/).not_nil!
|
||||||
|
3.times do |i|
|
||||||
|
operation = matches["op#{i + 1}"]
|
||||||
|
op_name = operation[0, 2]
|
||||||
|
|
||||||
|
op_body = operation.match(/\{[^}]+\}/).not_nil![0]
|
||||||
|
case op_body
|
||||||
|
when "{a.reverse()}"
|
||||||
|
operations[op_name] = "a"
|
||||||
|
when "{a.splice(0,b)}"
|
||||||
|
operations[op_name] = "b"
|
||||||
|
else
|
||||||
|
operations[op_name] = "c"
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
decrypt_function = [] of {name: String, value: Int32}
|
||||||
|
function_body.each do |function|
|
||||||
|
function = function.lchop(var_name + ".")
|
||||||
|
op_name = function[0, 2]
|
||||||
|
|
||||||
|
function = function.lchop(op_name + "(a,")
|
||||||
|
value = function.rchop(")").to_i
|
||||||
|
|
||||||
|
decrypt_function << {name: operations[op_name], value: value}
|
||||||
|
end
|
||||||
|
|
||||||
|
return decrypt_function
|
||||||
|
end
|
||||||
|
|
||||||
|
def decrypt_signature(a, code)
|
||||||
|
a = a.split("")
|
||||||
|
|
||||||
|
code.each do |item|
|
||||||
|
case item[:name]
|
||||||
|
when "a"
|
||||||
|
a.reverse!
|
||||||
|
when "b"
|
||||||
|
a.delete_at(0..(item[:value] - 1))
|
||||||
|
when "c"
|
||||||
|
a = splice(a, item[:value])
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
return a.join("")
|
||||||
|
end
|
||||||
|
|
||||||
|
def splice(a, b)
|
||||||
|
c = a[0]
|
||||||
|
a[0] = a[b % a.size]
|
||||||
|
a[b % a.size] = c
|
||||||
|
return a
|
||||||
|
end
|
||||||
@ -0,0 +1,146 @@
|
|||||||
|
class User
|
||||||
|
module PreferencesConverter
|
||||||
|
def self.from_rs(rs)
|
||||||
|
begin
|
||||||
|
Preferences.from_json(rs.read(String))
|
||||||
|
rescue ex
|
||||||
|
DEFAULT_USER_PREFERENCES
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
add_mapping({
|
||||||
|
id: String,
|
||||||
|
updated: Time,
|
||||||
|
notifications: Array(String),
|
||||||
|
subscriptions: Array(String),
|
||||||
|
email: String,
|
||||||
|
preferences: {
|
||||||
|
type: Preferences,
|
||||||
|
default: DEFAULT_USER_PREFERENCES,
|
||||||
|
converter: PreferencesConverter,
|
||||||
|
},
|
||||||
|
password: String?,
|
||||||
|
token: String,
|
||||||
|
watched: Array(String),
|
||||||
|
})
|
||||||
|
end
|
||||||
|
|
||||||
|
DEFAULT_USER_PREFERENCES = Preferences.from_json({
|
||||||
|
"video_loop" => false,
|
||||||
|
"autoplay" => false,
|
||||||
|
"speed" => 1.0,
|
||||||
|
"quality" => "hd720",
|
||||||
|
"volume" => 100,
|
||||||
|
"comments" => "youtube",
|
||||||
|
"dark_mode" => false,
|
||||||
|
"thin_mode " => false,
|
||||||
|
"max_results" => 40,
|
||||||
|
"sort" => "published",
|
||||||
|
"latest_only" => false,
|
||||||
|
"unseen_only" => false,
|
||||||
|
}.to_json)
|
||||||
|
|
||||||
|
# TODO: Migrate preferences so fields will not be nilable
|
||||||
|
class Preferences
|
||||||
|
JSON.mapping({
|
||||||
|
video_loop: Bool,
|
||||||
|
autoplay: Bool,
|
||||||
|
speed: Float32,
|
||||||
|
quality: String,
|
||||||
|
volume: Int32,
|
||||||
|
comments: {
|
||||||
|
type: String,
|
||||||
|
nilable: true,
|
||||||
|
default: "youtube",
|
||||||
|
},
|
||||||
|
redirect_feed: {
|
||||||
|
type: Bool,
|
||||||
|
nilable: true,
|
||||||
|
default: false,
|
||||||
|
},
|
||||||
|
dark_mode: Bool,
|
||||||
|
thin_mode: {
|
||||||
|
type: Bool,
|
||||||
|
nilable: true,
|
||||||
|
default: false,
|
||||||
|
},
|
||||||
|
max_results: Int32,
|
||||||
|
sort: String,
|
||||||
|
latest_only: Bool,
|
||||||
|
unseen_only: Bool,
|
||||||
|
notifications_only: {
|
||||||
|
type: Bool,
|
||||||
|
nilable: true,
|
||||||
|
default: false,
|
||||||
|
},
|
||||||
|
})
|
||||||
|
end
|
||||||
|
|
||||||
|
def get_user(sid, client, headers, db, refresh = true)
|
||||||
|
if db.query_one?("SELECT EXISTS (SELECT true FROM users WHERE id = $1)", sid, as: Bool)
|
||||||
|
user = db.query_one("SELECT * FROM users WHERE id = $1", sid, as: User)
|
||||||
|
|
||||||
|
if refresh && Time.now - user.updated > 1.minute
|
||||||
|
user = fetch_user(sid, client, headers, db)
|
||||||
|
user_array = user.to_a
|
||||||
|
|
||||||
|
user_array[5] = user_array[5].to_json
|
||||||
|
args = arg_array(user_array)
|
||||||
|
|
||||||
|
db.exec("INSERT INTO users VALUES (#{args}) \
|
||||||
|
ON CONFLICT (email) DO UPDATE SET id = $1, updated = $2, subscriptions = $4", user_array)
|
||||||
|
end
|
||||||
|
else
|
||||||
|
user = fetch_user(sid, client, headers, db)
|
||||||
|
user_array = user.to_a
|
||||||
|
|
||||||
|
user_array[5] = user_array[5].to_json
|
||||||
|
args = arg_array(user.to_a)
|
||||||
|
|
||||||
|
db.exec("INSERT INTO users VALUES (#{args}) \
|
||||||
|
ON CONFLICT (email) DO UPDATE SET id = $1, updated = $2, subscriptions = $4", user_array)
|
||||||
|
end
|
||||||
|
|
||||||
|
return user
|
||||||
|
end
|
||||||
|
|
||||||
|
def fetch_user(sid, client, headers, db)
|
||||||
|
feed = client.get("/subscription_manager?disable_polymer=1", headers)
|
||||||
|
feed = XML.parse_html(feed.body)
|
||||||
|
|
||||||
|
channels = [] of String
|
||||||
|
feed.xpath_nodes(%q(//ul[@id="guide-channels"]/li/a)).each do |channel|
|
||||||
|
if !["Popular on YouTube", "Music", "Sports", "Gaming"].includes? channel["title"]
|
||||||
|
channel_id = channel["href"].lstrip("/channel/")
|
||||||
|
|
||||||
|
begin
|
||||||
|
channel = get_channel(channel_id, client, db, false, false)
|
||||||
|
channels << channel.id
|
||||||
|
rescue ex
|
||||||
|
next
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
email = feed.xpath_node(%q(//a[@class="yt-masthead-picker-header yt-masthead-picker-active-account"]))
|
||||||
|
if email
|
||||||
|
email = email.content.strip
|
||||||
|
else
|
||||||
|
email = ""
|
||||||
|
end
|
||||||
|
|
||||||
|
token = Base64.urlsafe_encode(Random::Secure.random_bytes(32))
|
||||||
|
|
||||||
|
user = User.new(sid, Time.now, [] of String, channels, email, DEFAULT_USER_PREFERENCES, nil, token, [] of String)
|
||||||
|
return user
|
||||||
|
end
|
||||||
|
|
||||||
|
def create_user(sid, email, password)
|
||||||
|
password = Crypto::Bcrypt::Password.create(password, cost: 10)
|
||||||
|
token = Base64.urlsafe_encode(Random::Secure.random_bytes(32))
|
||||||
|
|
||||||
|
user = User.new(sid, Time.now, [] of String, [] of String, email, DEFAULT_USER_PREFERENCES, password.to_s, token, [] of String)
|
||||||
|
|
||||||
|
return user
|
||||||
|
end
|
||||||
@ -0,0 +1,223 @@
|
|||||||
|
class Video
|
||||||
|
module HTTPParamConverter
|
||||||
|
def self.from_rs(rs)
|
||||||
|
HTTP::Params.parse(rs.read(String))
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
add_mapping({
|
||||||
|
id: String,
|
||||||
|
info: {
|
||||||
|
type: HTTP::Params,
|
||||||
|
default: HTTP::Params.parse(""),
|
||||||
|
converter: Video::HTTPParamConverter,
|
||||||
|
},
|
||||||
|
updated: Time,
|
||||||
|
title: String,
|
||||||
|
views: Int64,
|
||||||
|
likes: Int32,
|
||||||
|
dislikes: Int32,
|
||||||
|
wilson_score: Float64,
|
||||||
|
published: Time,
|
||||||
|
description: String,
|
||||||
|
language: String?,
|
||||||
|
author: String,
|
||||||
|
ucid: String,
|
||||||
|
allowed_regions: Array(String),
|
||||||
|
is_family_friendly: Bool,
|
||||||
|
genre: String,
|
||||||
|
})
|
||||||
|
end
|
||||||
|
|
||||||
|
def get_video(id, db, refresh = true)
|
||||||
|
if db.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", id, as: Bool)
|
||||||
|
video = db.query_one("SELECT * FROM videos WHERE id = $1", id, as: Video)
|
||||||
|
|
||||||
|
# If record was last updated over an hour ago, refresh (expire param in response lasts for 6 hours)
|
||||||
|
if refresh && Time.now - video.updated > 1.hour
|
||||||
|
begin
|
||||||
|
video = fetch_video(id)
|
||||||
|
video_array = video.to_a
|
||||||
|
args = arg_array(video_array[1..-1], 2)
|
||||||
|
|
||||||
|
db.exec("UPDATE videos SET (info,updated,title,views,likes,dislikes,wilson_score,\
|
||||||
|
published,description,language,author,ucid, allowed_regions, is_family_friendly, genre)\
|
||||||
|
= (#{args}) WHERE id = $1", video_array)
|
||||||
|
rescue ex
|
||||||
|
db.exec("DELETE FROM videos * WHERE id = $1", id)
|
||||||
|
raise ex
|
||||||
|
end
|
||||||
|
end
|
||||||
|
else
|
||||||
|
video = fetch_video(id)
|
||||||
|
video_array = video.to_a
|
||||||
|
args = arg_array(video_array)
|
||||||
|
|
||||||
|
db.exec("INSERT INTO videos VALUES (#{args}) ON CONFLICT (id) DO NOTHING", video_array)
|
||||||
|
end
|
||||||
|
|
||||||
|
return video
|
||||||
|
end
|
||||||
|
|
||||||
|
def fetch_video(id)
|
||||||
|
html_channel = Channel(XML::Node).new
|
||||||
|
info_channel = Channel(HTTP::Params).new
|
||||||
|
|
||||||
|
spawn do
|
||||||
|
client = make_client(YT_URL)
|
||||||
|
html = client.get("/watch?v=#{id}&bpctr=#{Time.new.epoch + 2000}&disable_polymer=1")
|
||||||
|
html = XML.parse_html(html.body)
|
||||||
|
|
||||||
|
html_channel.send(html)
|
||||||
|
end
|
||||||
|
|
||||||
|
spawn do
|
||||||
|
client = make_client(YT_URL)
|
||||||
|
info = client.get("/get_video_info?video_id=#{id}&el=detailpage&ps=default&eurl=&gl=US&hl=en&disable_polymer=1")
|
||||||
|
info = HTTP::Params.parse(info.body)
|
||||||
|
|
||||||
|
if info["reason"]?
|
||||||
|
info = client.get("/get_video_info?video_id=#{id}&ps=default&eurl=&gl=US&hl=en&disable_polymer=1")
|
||||||
|
info = HTTP::Params.parse(info.body)
|
||||||
|
end
|
||||||
|
|
||||||
|
info_channel.send(info)
|
||||||
|
end
|
||||||
|
|
||||||
|
html = html_channel.receive
|
||||||
|
info = info_channel.receive
|
||||||
|
|
||||||
|
if info["reason"]?
|
||||||
|
raise info["reason"]
|
||||||
|
end
|
||||||
|
|
||||||
|
title = info["title"]
|
||||||
|
views = info["view_count"].to_i64
|
||||||
|
author = info["author"]
|
||||||
|
ucid = info["ucid"]
|
||||||
|
|
||||||
|
likes = html.xpath_node(%q(//button[@title="I like this"]/span))
|
||||||
|
likes = likes.try &.content.delete(",").try &.to_i
|
||||||
|
likes ||= 0
|
||||||
|
|
||||||
|
dislikes = html.xpath_node(%q(//button[@title="I dislike this"]/span))
|
||||||
|
dislikes = dislikes.try &.content.delete(",").try &.to_i
|
||||||
|
dislikes ||= 0
|
||||||
|
|
||||||
|
description = html.xpath_node(%q(//p[@id="eow-description"]))
|
||||||
|
description = description ? description.to_xml : ""
|
||||||
|
|
||||||
|
wilson_score = ci_lower_bound(likes, likes + dislikes)
|
||||||
|
|
||||||
|
published = html.xpath_node(%q(//meta[@itemprop="datePublished"])).not_nil!["content"]
|
||||||
|
published = Time.parse(published, "%Y-%m-%d", Time::Location.local)
|
||||||
|
|
||||||
|
allowed_regions = html.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",")
|
||||||
|
is_family_friendly = html.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True"
|
||||||
|
genre = html.xpath_node(%q(//meta[@itemprop="genre"])).not_nil!["content"]
|
||||||
|
|
||||||
|
video = Video.new(id, info, Time.now, title, views, likes, dislikes, wilson_score, published, description,
|
||||||
|
nil, author, ucid, allowed_regions, is_family_friendly, genre)
|
||||||
|
|
||||||
|
return video
|
||||||
|
end
|
||||||
|
|
||||||
|
def itag_to_metadata(itag : String)
|
||||||
|
# See https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L380-#L476
|
||||||
|
formats = {"5" => {"ext" => "flv", "width" => 400, "height" => 240, "acodec" => "mp3", "abr" => 64, "vcodec" => "h263"},
|
||||||
|
"6" => {"ext" => "flv", "width" => 450, "height" => 270, "acodec" => "mp3", "abr" => 64, "vcodec" => "h263"},
|
||||||
|
"13" => {"ext" => "3gp", "acodec" => "aac", "vcodec" => "mp4v"},
|
||||||
|
"17" => {"ext" => "3gp", "width" => 176, "height" => 144, "acodec" => "aac", "abr" => 24, "vcodec" => "mp4v"},
|
||||||
|
"18" => {"ext" => "mp4", "width" => 640, "height" => 360, "acodec" => "aac", "abr" => 96, "vcodec" => "h264"},
|
||||||
|
"22" => {"ext" => "mp4", "width" => 1280, "height" => 720, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"},
|
||||||
|
"34" => {"ext" => "flv", "width" => 640, "height" => 360, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"35" => {"ext" => "flv", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
|
||||||
|
"36" => {"ext" => "3gp", "width" => 320, "acodec" => "aac", "vcodec" => "mp4v"},
|
||||||
|
"37" => {"ext" => "mp4", "width" => 1920, "height" => 1080, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"},
|
||||||
|
"38" => {"ext" => "mp4", "width" => 4096, "height" => 3072, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"},
|
||||||
|
"43" => {"ext" => "webm", "width" => 640, "height" => 360, "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"},
|
||||||
|
"44" => {"ext" => "webm", "width" => 854, "height" => 480, "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"},
|
||||||
|
"45" => {"ext" => "webm", "width" => 1280, "height" => 720, "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"},
|
||||||
|
"46" => {"ext" => "webm", "width" => 1920, "height" => 1080, "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"},
|
||||||
|
"59" => {"ext" => "mp4", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"78" => {"ext" => "mp4", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
|
||||||
|
# 3D videos
|
||||||
|
"82" => {"ext" => "mp4", "height" => 360, "format" => "3D", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"83" => {"ext" => "mp4", "height" => 480, "format" => "3D", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"84" => {"ext" => "mp4", "height" => 720, "format" => "3D", "acodec" => "aac", "abr" => 192, "vcodec" => "h264"},
|
||||||
|
"85" => {"ext" => "mp4", "height" => 1080, "format" => "3D", "acodec" => "aac", "abr" => 192, "vcodec" => "h264"},
|
||||||
|
"100" => {"ext" => "webm", "height" => 360, "format" => "3D", "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"},
|
||||||
|
"101" => {"ext" => "webm", "height" => 480, "format" => "3D", "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"},
|
||||||
|
"102" => {"ext" => "webm", "height" => 720, "format" => "3D", "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"},
|
||||||
|
|
||||||
|
# Apple HTTP Live Streaming
|
||||||
|
"91" => {"ext" => "mp4", "height" => 144, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"},
|
||||||
|
"92" => {"ext" => "mp4", "height" => 240, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"},
|
||||||
|
"93" => {"ext" => "mp4", "height" => 360, "format" => "HLS", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"94" => {"ext" => "mp4", "height" => 480, "format" => "HLS", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"},
|
||||||
|
"95" => {"ext" => "mp4", "height" => 720, "format" => "HLS", "acodec" => "aac", "abr" => 256, "vcodec" => "h264"},
|
||||||
|
"96" => {"ext" => "mp4", "height" => 1080, "format" => "HLS", "acodec" => "aac", "abr" => 256, "vcodec" => "h264"},
|
||||||
|
"132" => {"ext" => "mp4", "height" => 240, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"},
|
||||||
|
"151" => {"ext" => "mp4", "height" => 72, "format" => "HLS", "acodec" => "aac", "abr" => 24, "vcodec" => "h264"},
|
||||||
|
|
||||||
|
# DASH mp4 video
|
||||||
|
"133" => {"ext" => "mp4", "height" => 240, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"134" => {"ext" => "mp4", "height" => 360, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"135" => {"ext" => "mp4", "height" => 480, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"136" => {"ext" => "mp4", "height" => 720, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"137" => {"ext" => "mp4", "height" => 1080, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"138" => {"ext" => "mp4", "format" => "DASH video", "vcodec" => "h264"}, # Height can vary (https=>//github.com/rg3/youtube-dl/issues/4559)
|
||||||
|
"160" => {"ext" => "mp4", "height" => 144, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"212" => {"ext" => "mp4", "height" => 480, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"264" => {"ext" => "mp4", "height" => 1440, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
"298" => {"ext" => "mp4", "height" => 720, "format" => "DASH video", "vcodec" => "h264", "fps" => 60},
|
||||||
|
"299" => {"ext" => "mp4", "height" => 1080, "format" => "DASH video", "vcodec" => "h264", "fps" => 60},
|
||||||
|
"266" => {"ext" => "mp4", "height" => 2160, "format" => "DASH video", "vcodec" => "h264"},
|
||||||
|
|
||||||
|
# Dash mp4 audio
|
||||||
|
"139" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 48, "container" => "m4a_dash"},
|
||||||
|
"140" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 128, "container" => "m4a_dash"},
|
||||||
|
"141" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 256, "container" => "m4a_dash"},
|
||||||
|
"256" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "container" => "m4a_dash"},
|
||||||
|
"258" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "container" => "m4a_dash"},
|
||||||
|
"325" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "dtse", "container" => "m4a_dash"},
|
||||||
|
"328" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "ec-3", "container" => "m4a_dash"},
|
||||||
|
|
||||||
|
# Dash webm
|
||||||
|
"167" => {"ext" => "webm", "height" => 360, "width" => 640, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"168" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"169" => {"ext" => "webm", "height" => 720, "width" => 1280, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"170" => {"ext" => "webm", "height" => 1080, "width" => 1920, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"218" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"219" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"},
|
||||||
|
"278" => {"ext" => "webm", "height" => 144, "format" => "DASH video", "container" => "webm", "vcodec" => "vp9"},
|
||||||
|
"242" => {"ext" => "webm", "height" => 240, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"243" => {"ext" => "webm", "height" => 360, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"244" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"245" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"246" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"247" => {"ext" => "webm", "height" => 720, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"248" => {"ext" => "webm", "height" => 1080, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"271" => {"ext" => "webm", "height" => 1440, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
# itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
|
||||||
|
"272" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"302" => {"ext" => "webm", "height" => 720, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60},
|
||||||
|
"303" => {"ext" => "webm", "height" => 1080, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60},
|
||||||
|
"308" => {"ext" => "webm", "height" => 1440, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60},
|
||||||
|
"313" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9"},
|
||||||
|
"315" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60},
|
||||||
|
|
||||||
|
# Dash webm audio
|
||||||
|
"171" => {"ext" => "webm", "acodec" => "vorbis", "format" => "DASH audio", "abr" => 128},
|
||||||
|
"172" => {"ext" => "webm", "acodec" => "vorbis", "format" => "DASH audio", "abr" => 256},
|
||||||
|
|
||||||
|
# Dash webm audio with opus inside
|
||||||
|
"249" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 50},
|
||||||
|
"250" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 70},
|
||||||
|
"251" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 160},
|
||||||
|
}
|
||||||
|
|
||||||
|
return formats[itag]
|
||||||
|
end
|
||||||
Loading…
Reference in New Issue