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Refactor continuation protocol buffers

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Omar Roth
2019-07-20 20:18:08 -05:00
parent e736626953
commit f18d8229c0
6 changed files with 298 additions and 268 deletions
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64
src/invidious/search.cr
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@@ -374,45 +374,51 @@ end
def produce_channel_search_url(ucid, query, page)
page = "#{page}"
meta = IO::Memory.new
meta.write(Bytes[0x12, 0x06])
meta.print("search")
data = IO::Memory.new
data.write_byte 0x12
data.write_byte 0x06
data.print "search"
meta.write(Bytes[0x30, 0x02])
meta.write(Bytes[0x38, 0x01])
meta.write(Bytes[0x60, 0x01])
meta.write(Bytes[0x6a, 0x00])
meta.write(Bytes[0xb8, 0x01, 0x00])
data.write Bytes[0x30, 0x02]
data.write Bytes[0x38, 0x01]
data.write Bytes[0x60, 0x01]
data.write Bytes[0x6a, 0x00]
data.write Bytes[0xb8, 0x01, 0x00]
meta.write(Bytes[0x7a, page.size])
meta.print(page)
data.write_byte 0x7a
VarInt.to_io(data, page.bytesize)
data.print page
meta.rewind
meta = Base64.urlsafe_encode(meta.to_slice)
meta = URI.escape(meta)
data.rewind
data = Base64.urlsafe_encode(data)
continuation = URI.escape(data)
continuation = IO::Memory.new
continuation.write(Bytes[0x12, ucid.size])
continuation.print(ucid)
data = IO::Memory.new
continuation.write(Bytes[0x1a, meta.size])
continuation.print(meta)
data.write_byte 0x12
VarInt.to_io(data, ucid.bytesize)
data.print ucid
continuation.write(Bytes[0x5a, query.size])
continuation.print(query)
data.write_byte 0x1a
VarInt.to_io(data, continuation.bytesize)
data.print continuation
continuation.rewind
continuation = continuation.gets_to_end
data.write_byte 0x5a
VarInt.to_io(data, query.bytesize)
data.print query
wrapper = IO::Memory.new
wrapper.write(Bytes[0xe2, 0xa9, 0x85, 0xb2, 0x02, continuation.size])
wrapper.print(continuation)
wrapper.rewind
data.rewind
wrapper = Base64.urlsafe_encode(wrapper.to_slice)
wrapper = URI.escape(wrapper)
buffer = IO::Memory.new
buffer.write Bytes[0xe2, 0xa9, 0x85, 0xb2, 0x02]
VarInt.to_io(buffer, data.bytesize)
url = "/browse_ajax?continuation=#{wrapper}&gl=US&hl=en"
IO.copy data, buffer
continuation = Base64.urlsafe_encode(buffer)
continuation = URI.escape(continuation)
url = "/browse_ajax?continuation=#{continuation}&gl=US&hl=en"
return url
end