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Merge pull request #2677 from SamantazFox/decompression-fix-2

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Temporarily fix for #2612 (round 2)
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TheFrenchGhosty 2022-01-05 09:38:53 +00:00 committed by GitHub
commit fdc380e7f7
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1 changed files with 44 additions and 18 deletions
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src/invidious/yt_backend/youtube_api.cr
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@ -405,37 +405,32 @@ module YoutubeAPI
headers = HTTP::Headers{ headers = HTTP::Headers{
"Content-Type" => "application/json; charset=UTF-8", "Content-Type" => "application/json; charset=UTF-8",
"Accept-Encoding" => "gzip, deflate",
} }
# The normal HTTP client automatically applies accept-encoding: gzip,
# and decompresses. However, explicitly applying it will remove this functionality.
#
# https://github.com/crystal-lang/crystal/issues/11252#issuecomment-929594741
{% unless flag?(:disable_quic) %}
if CONFIG.use_quic
headers["Accept-Encoding"] = "gzip"
end
{% end %}
# Logging # Logging
LOGGER.debug("YoutubeAPI: Using endpoint: \"#{endpoint}\"") LOGGER.debug("YoutubeAPI: Using endpoint: \"#{endpoint}\"")
LOGGER.trace("YoutubeAPI: ClientConfig: #{client_config}") LOGGER.trace("YoutubeAPI: ClientConfig: #{client_config}")
LOGGER.trace("YoutubeAPI: POST data: #{data}") LOGGER.trace("YoutubeAPI: POST data: #{data}")
# Send the POST request # Send the POST request
if client_config.proxy_region if {{ !flag?(:disable_quic) }} && CONFIG.use_quic
response = YT_POOL.client( # Using QUIC client
client_config.proxy_region, response = YT_POOL.client(client_config.proxy_region,
&.post(url, headers: headers, body: data.to_json) &.post(url, headers: headers, body: data.to_json)
) )
body = response.body
else else
response = YT_POOL.client &.post( # Using HTTP client
url, headers: headers, body: data.to_json body = YT_POOL.client(client_config.proxy_region) do |client|
) client.post(url, headers: headers, body: data.to_json) do |response|
self._decompress(response.body_io, response.headers["Content-Encoding"]?)
end
end
end end
# Convert result to Hash # Convert result to Hash
initial_data = JSON.parse(response.body).as_h initial_data = JSON.parse(body).as_h
# Error handling # Error handling
if initial_data.has_key?("error") if initial_data.has_key?("error")
@ -453,4 +448,35 @@ module YoutubeAPI
return initial_data return initial_data
end end
####################################################################
# _decompress(body_io, headers)
#
# Internal function that reads the Content-Encoding headers and
# decompresses the content accordingly.
#
# We decompress the body ourselves (when using HTTP::Client) because
# the auto-decompress feature is broken in the Crystal stdlib.
#
# Read more:
# - https://github.com/iv-org/invidious/issues/2612
# - https://github.com/crystal-lang/crystal/issues/11354
#
def _decompress(body_io : IO, encodings : String?) : String
if encodings
# Multiple encodings can be combined, and are listed in the order
# in which they were applied. E.g: "deflate, gzip" means that the
# content must be first "gunzipped", then "defated".
encodings.split(',').reverse.each do |enc|
case enc.strip(' ')
when "gzip"
body_io = Compress::Gzip::Reader.new(body_io, sync_close: true)
when "deflate"
body_io = Compress::Deflate::Reader.new(body_io, sync_close: true)
end
end
end
return body_io.gets_to_end
end
end # End of module end # End of module