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/*
* Copyright (c) 2014, Peter Thorson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the WebSocket++ Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
//#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE extension_permessage_deflate
#include <boost/test/unit_test.hpp>
#include <iostream>
#include <string>
#include <websocketpp/common/memory.hpp>
#include <websocketpp/http/request.hpp>
#include <websocketpp/extensions/permessage_deflate/enabled.hpp>
struct config {
typedef websocketpp::http::parser::request request_type;
};
typedef websocketpp::extensions::permessage_deflate::enabled<config>
compressor_type;
using namespace websocketpp;
BOOST_AUTO_TEST_CASE( deflate_init ) {
/*compressor_type compressor;
websocketpp::http::parser::attribute_list attributes;
std::pair<lib::error_code,std::string> neg_ret;
neg_ret = compressor.negotiate(attributes);
BOOST_CHECK_EQUAL( neg_ret.first,
extensions::permessage_deflate::error::invalid_parameters );*/
/**
* Window size is primarily controlled by the writer. A stream can only be
* read by a window size equal to or greater than the one use to compress
* it initially. The default windows size is also the maximum window size.
* Thus:
*
* Outbound window size can be limited unilaterally under the assumption
* that the opposite end will be using the default (maximum size which can
* read anything)
*
* Inbound window size must be limited by asking the remote endpoint to
* do so and it agreeing.
*
* Context takeover is also primarily controlled by the writer. If the
* compressor does not clear its context between messages then the reader
* can't either.
*
* Outbound messages may clear context between messages unilaterally.
* Inbound messages must retain state unless the remote endpoint signals
* otherwise.
*
* Negotiation options:
* Client must choose from the following options:
* - whether or not to request an inbound window limit
* - whether or not to signal that it will honor an outbound window limit
* - whether or not to request that the server disallow context takeover
*
* Server must answer in the following ways
* - If client requested a window size limit, is the window size limit
* acceptable?
* - If client allows window limit requests, should we send one?
* - If client requested no context takeover, should we accept?
*
*
*
* All Defaults
* Req: permessage-compress; method=deflate
* Ans: permessage-compress; method=deflate
*
* # Client wants to limit the size of inbound windows from server
* permessage-compress; method="deflate; s2c_max_window_bits=8, deflate"
* Ans: permessage-compress; method="deflate; s2c_max_window_bits=8"
* OR
* Ans: permessage-compress; method=deflate
*
* # Server wants to limit the size of inbound windows from client
* Client:
* permessage-compress; method="deflate; c2s_max_window_bits, deflate"
*
* Server:
* permessage-compress; method="deflate; c2s_max_window_bits=8"
*
* # Client wants to
*
*
*
*
*
*
*/
/* processor::extensions::deflate_method d(true);
http::parser::attribute_list attributes;
lib::error_code ec;
attributes.push_back(http::parser::attribute("foo","bar"));
ec = d.init(attributes);
BOOST_CHECK(ec == processor::extensions::error::unknown_method_parameter);
attributes.clear();
attributes.push_back(http::parser::attribute("s2c_max_window_bits","bar"));
ec = d.init(attributes);
BOOST_CHECK(ec == processor::extensions::error::invalid_algorithm_settings);
attributes.clear();
attributes.push_back(http::parser::attribute("s2c_max_window_bits","7"));
ec = d.init(attributes);
BOOST_CHECK(ec == processor::extensions::error::invalid_algorithm_settings);
attributes.clear();
attributes.push_back(http::parser::attribute("s2c_max_window_bits","16"));
ec = d.init(attributes);
BOOST_CHECK(ec == processor::extensions::error::invalid_algorithm_settings);
attributes.clear();
attributes.push_back(http::parser::attribute("s2c_max_window_bits","9"));
ec = d.init(attributes);
BOOST_CHECK( !ec);
attributes.clear();
ec = d.init(attributes);
BOOST_CHECK( !ec);
processor::extensions::deflate_engine de;
unsigned char test_in[] = "HelloHelloHelloHello";
unsigned char test_out[30];
uLongf test_out_size = 30;
int ret;
ret = compress(test_out, &test_out_size, test_in, 20);
std::cout << ret << std::endl
<< websocketpp::utility::to_hex(test_in,20) << std::endl
<< websocketpp::utility::to_hex(test_out,test_out_size) << std::endl;
std::string input = "Hello";
std::string output;
ec = de.compress(input,output);
BOOST_CHECK( ec == processor::extensions::error::uninitialized );
//std::cout << ec.message() << websocketpp::utility::to_hex(output) << std::endl;
ec = de.init(15,15,Z_DEFAULT_COMPRESSION,8,Z_FIXED);
//ec = de.init();
BOOST_CHECK( !ec );
ec = de.compress(input,output);
std::cout << ec.message() << std::endl
<< websocketpp::utility::to_hex(input) << std::endl
<< websocketpp::utility::to_hex(output) << std::endl;
output.clear();
ec = de.compress(input,output);
std::cout << ec.message() << std::endl
<< websocketpp::utility::to_hex(input) << std::endl
<< websocketpp::utility::to_hex(output) << std::endl;
input = output;
output.clear();
ec = de.decompress(input,output);
std::cout << ec.message() << std::endl
<< websocketpp::utility::to_hex(input) << std::endl
<< websocketpp::utility::to_hex(output) << std::endl;
*/
}
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