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Add suppor for dash manifest
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@ -327,6 +327,85 @@ get "/redirect" do |env|
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end
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end
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# Return dash manifest for the given video ID
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get "/api/manifest/dash/id/:id" do |env|
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env.response.headers.add("Access-Control-Allow-Origin", "*")
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env.response.content_type = "application/dash+xml"
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id = env.params.url["id"]
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yt_client = get_client(youtube_pool)
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begin
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video = get_video(id, yt_client, PG_DB)
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rescue ex
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halt env, status_code: 403
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ensure
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youtube_pool << yt_client
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end
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adaptive_fmts = [] of HTTP::Params
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if video.info.has_key?("adaptive_fmts")
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video.info["adaptive_fmts"].split(",") do |string|
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adaptive_fmts << HTTP::Params.parse(string)
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end
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else
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halt env, status_code: 403
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end
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manifest = XML.build(indent: " ") do |xml|
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xml.element("MPD", xmlns: "urn:mpeg:dash:schema:mpd:2011", profiles: "urn:mpeg:dash:profile:full:2011",
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mediaPresentationDuration: "PT#{video.info["length_seconds"]}S", minBufferTime: "PT2S", type: "static") do
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host = URI.parse(adaptive_fmts[0]["url"]).host.to_s
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xml.element("BaseURL") { xml.text "https://#{host}" }
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xml.element("Period", id: "0") do
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adaptive_fmts.each do |fmt|
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mimetype, codecs = fmt["type"].split(";")
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codecs = codecs[9..-2]
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fmt_type = mimetype.split("/")[0]
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fmt_id = fmt["itag"]
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bandwidth = fmt["bitrate"]
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url = fmt["url"]
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if fmt["s"]?
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url += "&signature="
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url += decrypt_signature(fmt["s"])
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end
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url = URI.parse(url)
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url = url.path.not_nil! + "?" + url.query.not_nil!
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if fmt_type == "video"
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width, height = fmt["size"].split("x")
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framerate = fmt["fps"]
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xml.element("AdaptationSet", contentType: "video", width: width,
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height: height, frameRate: framerate, subsegmentAlignment: true, id: fmt_id) do
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xml.element("Representation", id: fmt_id, bandwidth: bandwidth, codecs: codecs, mimeType: mimetype) do
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xml.element("BaseURL") { xml.text url }
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xml.element("SegmentBase", indexRange: fmt["init"]) do
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xml.element("Initialization", range: fmt["index"])
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end
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end
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end
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else
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xml.element("AdaptationSet", contentType: "audio", subsegmentAlignment: true, id: fmt_id) do
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xml.element("Representation", id: fmt_id, bandwidth: bandwidth, codecs: codecs, mimeType: mimetype) do
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xml.element("BaseURL") { xml.text url }
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xml.element("SegmentBase", indexRange: fmt["init"]) do
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xml.element("Initialization", range: fmt["index"])
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end
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end
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end
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end
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end
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end
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end
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end
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manifest
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end
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error 404 do |env|
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error_message = "404 Page not found"
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templated "error"
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