mirror of
https://github.com/klzgrad/naiveproxy.git
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99 lines
3.2 KiB
C++
99 lines
3.2 KiB
C++
// Copyright 2012 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/http/proxy_client_socket.h"
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#include <unordered_set>
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#include "base/metrics/histogram_macros.h"
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#include "base/strings/string_util.h"
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#include "base/strings/stringprintf.h"
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#include "net/base/host_port_pair.h"
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#include "net/base/net_errors.h"
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#include "net/http/http_auth_controller.h"
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#include "net/http/http_request_info.h"
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#include "net/http/http_response_headers.h"
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#include "net/http/http_response_info.h"
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#include "url/gurl.h"
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namespace net {
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void ProxyClientSocket::SetStreamPriority(RequestPriority priority) {}
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// static
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void ProxyClientSocket::BuildTunnelRequest(
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const HostPortPair& endpoint,
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const HttpRequestHeaders& extra_headers,
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const std::string& user_agent,
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std::string* request_line,
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HttpRequestHeaders* request_headers) {
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// RFC 7230 Section 5.4 says a client MUST send a Host header field in all
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// HTTP/1.1 request messages, and Host SHOULD be the first header field
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// following the request-line. Add "Proxy-Connection: keep-alive" for compat
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// with HTTP/1.0 proxies such as Squid (required for NTLM authentication).
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std::string host_and_port = endpoint.ToString();
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*request_line =
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base::StringPrintf("CONNECT %s HTTP/1.1\r\n", host_and_port.c_str());
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request_headers->SetHeader(HttpRequestHeaders::kHost, host_and_port);
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request_headers->SetHeader(HttpRequestHeaders::kProxyConnection,
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"keep-alive");
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if (!user_agent.empty())
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request_headers->SetHeader(HttpRequestHeaders::kUserAgent, user_agent);
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request_headers->MergeFrom(extra_headers);
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}
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// static
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int ProxyClientSocket::HandleProxyAuthChallenge(
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HttpAuthController* auth,
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HttpResponseInfo* response,
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const NetLogWithSource& net_log) {
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DCHECK(response->headers.get());
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int rv = auth->HandleAuthChallenge(response->headers, response->ssl_info,
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false, true, net_log);
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auth->TakeAuthInfo(&response->auth_challenge);
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if (rv == OK)
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return ERR_PROXY_AUTH_REQUESTED;
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return rv;
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}
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// static
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void ProxyClientSocket::SanitizeProxyAuth(HttpResponseInfo& response) {
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DCHECK(response.headers);
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// Copy status line and all hop-by-hop headers to preserve keep-alive
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// behavior.
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const char* kHeadersToKeep[] = {
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"connection", "proxy-connection", "keep-alive", "trailer",
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"transfer-encoding", "upgrade",
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"content-length",
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"proxy-authenticate",
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};
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// Create a list of all present header not in |kHeadersToKeep|, and then
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// remove them.
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size_t iter = 0;
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std::string header_name;
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std::string header_value;
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std::unordered_set<std::string> headers_to_remove;
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while (response.headers->EnumerateHeaderLines(&iter, &header_name,
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&header_value)) {
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bool remove = true;
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for (const char* header : kHeadersToKeep) {
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if (base::EqualsCaseInsensitiveASCII(header, header_name)) {
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remove = false;
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break;
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}
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}
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if (remove)
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headers_to_remove.insert(header_name);
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}
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response.headers->RemoveHeaders(headers_to_remove);
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}
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} // namespace net
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