class CompressedRequests
Public Class Methods
new(app)
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# File lib/logstash/util/http_compressed_requests.rb, line 2 def initialize(app) @app = app end
Public Instance Methods
call(env)
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# File lib/logstash/util/http_compressed_requests.rb, line 14 def call(env) if method_handled?(env) && encoding_handled?(env) begin extracted = decode(env['rack.input'], env['HTTP_CONTENT_ENCODING']) rescue Zlib::Error return [400, {'Content-Type' => 'text/plain'}, ["Failed to decompress body"]] end env.delete('HTTP_CONTENT_ENCODING') env['CONTENT_LENGTH'] = extracted.bytesize env['rack.input'] = StringIO.new(extracted) end @app.call(env) end
decode(input, content_encoding)
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# File lib/logstash/util/http_compressed_requests.rb, line 30 def decode(input, content_encoding) case content_encoding when 'gzip' then Zlib::GzipReader.new(input).read when 'deflate' then Zlib::Inflate.inflate(input.read) end end
encoding_handled?(env)
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# File lib/logstash/util/http_compressed_requests.rb, line 10 def encoding_handled?(env) ['gzip', 'deflate'].include? env['HTTP_CONTENT_ENCODING'] end
method_handled?(env)
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# File lib/logstash/util/http_compressed_requests.rb, line 6 def method_handled?(env) !!(env['REQUEST_METHOD'] =~ /(POST|PUT)/) end