kopia lustrzana https://github.com/iv-org/invidious
Merge pull request #15 from omarroth/extract-signature
Add ability to automatically extract video signature funtionpull/19/head
commit
9c3bf5fd27
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@ -173,7 +173,6 @@ video_threads.times do |i|
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end
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top_videos = [] of Video
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spawn do
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if CONFIG.dl_api_key
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DetectLanguage.configure do |config|
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@ -213,6 +212,20 @@ spawn do
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end
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end
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# Refresh decrypt function
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decrypt_function = [] of {name: String, value: Int32}
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spawn do
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loop do
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begin
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client = make_client(YT_URL)
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decrypt_function = update_decrypt_function(client)
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rescue ex
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end
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Fiber.yield
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end
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end
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before_all do |env|
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if env.request.cookies.has_key? "SID"
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headers = HTTP::Headers.new
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@ -296,11 +309,11 @@ get "/watch" do |env|
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if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?
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adaptive_fmts.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function)
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end
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fmt_stream.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function)
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end
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end
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@ -433,11 +446,11 @@ get "/embed/:id" do |env|
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if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?
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adaptive_fmts.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function)
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end
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fmt_stream.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function)
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end
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end
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@ -1044,7 +1057,7 @@ get "/api/manifest/dash/id/:id" do |env|
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if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?
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adaptive_fmts.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function)
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end
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end
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@ -324,16 +324,66 @@ def splice(a, b)
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return a
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end
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def decrypt_signature(a)
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def decrypt_signature(a, code)
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a = a.split("")
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a.reverse!
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a.delete_at(0..0)
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a = splice(a, 11)
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code.each do |item|
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case item[:name]
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when "a"
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a.reverse!
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when "b"
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a.delete_at(0..(item[:value] - 1))
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when "c"
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a = splice(a, item[:value])
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end
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end
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return a.join("")
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end
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def update_decrypt_function(client)
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# Video with signature
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document = client.get("/watch?v=CvFH_6DNRCY").body
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url = document.match(/src="(?<url>\/yts\/jsbin\/player-.{9}\/en_US\/base.js)"/).not_nil!["url"]
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player = client.get(url).body
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function_name = player.match(/\(b\|\|\(b="signature"\),d.set\(b,(?<name>[a-zA-Z]{2})\(c\)\)\)/).not_nil!["name"]
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function_body = player.match(/#{function_name}=function\(a\){(?<body>[^}]+)}/).not_nil!["body"]
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function_body = function_body.split(";")[1..-2]
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var_name = function_body[0][0, 2]
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operations = {} of String => String
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matches = player.delete("\n").match(/var #{var_name}={((?<op1>[a-zA-Z]{2}:[^}]+})),((?<op2>[a-zA-Z]{2}:[^}]+})),((?<op3>[a-zA-Z]{2}:[^}]+}))};/).not_nil!
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3.times do |i|
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operation = matches["op#{i + 1}"]
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op_name = operation[0, 2]
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op_body = operation.match(/\{[^}]+\}/).not_nil![0]
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case op_body
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when "{a.reverse()}"
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operations[op_name] = "a"
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when "{a.splice(0,b)}"
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operations[op_name] = "b"
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else
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operations[op_name] = "c"
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end
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end
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decrypt_function = [] of {name: String, value: Int32}
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function_body.each do |function|
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function = function.lchop(var_name + ".")
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op_name = function[0, 2]
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function = function.lchop(op_name + "(a,")
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value = function.rchop(")").to_i
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decrypt_function << {name: operations[op_name], value: value}
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end
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return decrypt_function
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end
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def rank_videos(db, n, filter, url)
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top = [] of {Float64, String}
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