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Rack Middleware to automatically unzip gzipped/deflated POST data
class CompressedRequests
def initialize(app)
@app = app
end
def call(env)
if env['REQUEST_METHOD'] =~ /(POST|PUT)/
if env.keys.include? 'HTTP_CONTENT_ENCODING'
input = env['rack.input'].read
new_input = decode(input, env['HTTP_CONTENT_ENCODING'])
env['rack.input'] = StringIO.new(new_input)
env['CONTENT_LENGTH'] = new_input.length
env.delete('HTTP_CONTENT_ENCODING')
end
end
status, headers, response = @app.call(env)
return [status, headers, response]
end
def decode(input, content_encoding)
if content_encoding == 'gzip'
z = Zlib::GzipReader.new(StringIO.new(input)).read
elsif content_encoding == 'deflate'
Zlib::Inflate.new.inflate new input
else
input
end
end
end
@gotoAndBliss

Out of curiosity, how do you instantiate CompressedRequests into the Rack? I'm trying to do the same, but my ['rack.input'] won't write.

@mestachs

I suspect that the correct version, dealing better with utf-8 (chars vs bytes) :

   env['CONTENT_LENGTH'] = new_input.bytes.size
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