Differential D9000 Diff 27185 src/test/fuzz/http_request.cpp

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src/test/fuzz/http_request.cpp

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				// Copyright (c) 2020 The Bitcoin Core developers
				// Distributed under the MIT software license, see the accompanying
				// file COPYING or http://www.opensource.org/licenses/mit-license.php.

				#include <httpserver.h>
				#include <netaddress.h>

				#include <test/fuzz/FuzzedDataProvider.h>
				#include <test/fuzz/fuzz.h>
				#include <test/fuzz/util.h>

				#include <event2/buffer.h>
				#include <event2/http.h>
				#include <event2/http_struct.h>

				#include <cassert>
				#include <cstdint>
				#include <string>
				#include <vector>

				extern "C" int evhttp_parse_firstline_(struct evhttp_request *,
				struct evbuffer *);
				extern "C" int evhttp_parse_headers_(struct evhttp_request *,
				struct evbuffer *);
				std::string RequestMethodString(HTTPRequest::RequestMethod m);

				void test_one_input(const std::vector<uint8_t> &buffer) {
				FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
				evhttp_request *evreq = evhttp_request_new(nullptr, nullptr);
				assert(evreq != nullptr);
				evreq->kind = EVHTTP_REQUEST;
				evbuffer *evbuf = evbuffer_new();
				assert(evbuf != nullptr);
				const std::vector<uint8_t> http_buffer =
				ConsumeRandomLengthByteVector(fuzzed_data_provider, 4096);
				evbuffer_add(evbuf, http_buffer.data(), http_buffer.size());
				if (evhttp_parse_firstline_(evreq, evbuf) != 1 \|\|
				evhttp_parse_headers_(evreq, evbuf) != 1) {
				evbuffer_free(evbuf);
				evhttp_request_free(evreq);
				return;
				}

				HTTPRequest http_request{evreq, true};
				const HTTPRequest::RequestMethod request_method =
				http_request.GetRequestMethod();
				(void)RequestMethodString(request_method);
				(void)http_request.GetURI();
				(void)http_request.GetHeader("Host");
				const std::string header =
				fuzzed_data_provider.ConsumeRandomLengthString(16);
				(void)http_request.GetHeader(header);
				(void)http_request.WriteHeader(
				header, fuzzed_data_provider.ConsumeRandomLengthString(16));
				(void)http_request.GetHeader(header);
				const std::string body = http_request.ReadBody();
				assert(body.empty());
				const CService service = http_request.GetPeer();
				assert(service.ToString() == "[::]:0");

				evbuffer_free(evbuf);
				evhttp_request_free(evreq);
				}