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Videos: Convert URL before putting result into cache

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Samantaz Fox 2024-08-15 18:10:38 +02:00
parent e319c35f09
commit b2133c6b2c
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GPG Key ID: F42821059186176E
2 changed files with 57 additions and 68 deletions
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82
src/invidious/videos.cr
View File

@ -26,12 +26,6 @@ struct Video
@[DB::Field(ignore: true)]
@captions = [] of Invidious::Videos::Captions::Metadata
@[DB::Field(ignore: true)]
property adaptive_fmts : Array(Hash(String, JSON::Any))?
@[DB::Field(ignore: true)]
property fmt_stream : Array(Hash(String, JSON::Any))?
@[DB::Field(ignore: true)]
property description : String?
@ -98,72 +92,24 @@ struct Video
# Methods for parsing streaming data
def convert_url(fmt)
if cfr = fmt["signatureCipher"]?.try { |json| HTTP::Params.parse(json.as_s) }
sp = cfr["sp"]
url = URI.parse(cfr["url"])
params = url.query_params
LOGGER.debug("Videos: Decoding '#{cfr}'")
unsig = DECRYPT_FUNCTION.try &.decrypt_signature(cfr["s"])
params[sp] = unsig if unsig
def fmt_stream : Array(Hash(String, JSON::Any))
if formats = info.dig?("streamingData", "formats")
return formats
.as_a.map(&.as_h)
.sort_by! { |f| f["width"]?.try &.as_i || 0 }
else
url = URI.parse(fmt["url"].as_s)
params = url.query_params
return [] of Hash(String, JSON::Any)
end
end
n = DECRYPT_FUNCTION.try &.decrypt_nsig(params["n"])
params["n"] = n if n
if token = CONFIG.po_token
params["pot"] = token
def adaptive_fmts : Array(Hash(String, JSON::Any))
if formats = info.dig?("streamingData", "adaptiveFormats")
return formats
.as_a.map(&.as_h)
.sort_by! { |f| f["width"]?.try &.as_i || 0 }
else
return [] of Hash(String, JSON::Any)
end
params["host"] = url.host.not_nil!
if region = self.info["region"]?.try &.as_s
params["region"] = region
end
url.query_params = params
LOGGER.trace("Videos: new url is '#{url}'")
return url.to_s
rescue ex
LOGGER.debug("Videos: Error when parsing video URL")
LOGGER.trace(ex.inspect_with_backtrace)
return ""
end
def fmt_stream
return @fmt_stream.as(Array(Hash(String, JSON::Any))) if @fmt_stream
fmt_stream = info.dig?("streamingData", "formats")
.try &.as_a.map &.as_h || [] of Hash(String, JSON::Any)
fmt_stream.each do |fmt|
fmt["url"] = JSON::Any.new(self.convert_url(fmt))
end
fmt_stream.sort_by! { |f| f["width"]?.try &.as_i || 0 }
@fmt_stream = fmt_stream
return @fmt_stream.as(Array(Hash(String, JSON::Any)))
end
def adaptive_fmts
return @adaptive_fmts.as(Array(Hash(String, JSON::Any))) if @adaptive_fmts
fmt_stream = info.dig("streamingData", "adaptiveFormats")
.try &.as_a.map &.as_h || [] of Hash(String, JSON::Any)
fmt_stream.each do |fmt|
fmt["url"] = JSON::Any.new(self.convert_url(fmt))
end
fmt_stream.sort_by! { |f| f["width"]?.try &.as_i || 0 }
@adaptive_fmts = fmt_stream
return @adaptive_fmts.as(Array(Hash(String, JSON::Any)))
end
def video_streams

45
src/invidious/videos/parser.cr
View File

@ -132,10 +132,21 @@ def extract_video_info(video_id : String)
params.delete("reason")
end
{"captions", "playabilityStatus", "playerConfig", "storyboards", "streamingData"}.each do |f|
{"captions", "playabilityStatus", "playerConfig", "storyboards"}.each do |f|
params[f] = player_response[f] if player_response[f]?
end
# Convert URLs, if those are present
if streaming_data = player_response["streamingData"]?
%w[formats adaptiveFormats].each do |key|
streaming_data.as_h[key]?.try &.as_a.each do |format|
format.as_h["url"] = JSON::Any.new(convert_url(format))
end
end
params["streamingData"] = streaming_data
end
# Data structure version, for cache control
params["version"] = JSON::Any.new(Video::SCHEMA_VERSION.to_i64)
@ -443,3 +454,35 @@ def parse_video_info(video_id : String, player_response : Hash(String, JSON::Any
return params
end
private def convert_url(fmt)
if cfr = fmt["signatureCipher"]?.try { |json| HTTP::Params.parse(json.as_s) }
sp = cfr["sp"]
url = URI.parse(cfr["url"])
params = url.query_params
LOGGER.debug("convert_url: Decoding '#{cfr}'")
unsig = DECRYPT_FUNCTION.try &.decrypt_signature(cfr["s"])
params[sp] = unsig if unsig
else
url = URI.parse(fmt["url"].as_s)
params = url.query_params
end
n = DECRYPT_FUNCTION.try &.decrypt_nsig(params["n"])
params["n"] = n if n
if token = CONFIG.po_token
params["pot"] = token
end
url.query_params = params
LOGGER.trace("convert_url: new url is '#{url}'")
return url.to_s
rescue ex
LOGGER.debug("convert_url: Error when parsing video URL")
LOGGER.trace(ex.inspect_with_backtrace)
return ""
end