1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "net/http/http_proxy_utils.h"
6
7 #include "base/string_util.h"
8 #include "googleurl/src/gurl.h"
9 #include "net/base/host_port_pair.h"
10 #include "net/base/net_util.h"
11 #include "net/http/http_request_info.h"
12
13 namespace net {
14
BuildTunnelRequest(const HttpRequestInfo & request_info,const HttpRequestHeaders & auth_headers,const HostPortPair & endpoint,std::string * request_line,HttpRequestHeaders * request_headers)15 void BuildTunnelRequest(
16 const HttpRequestInfo& request_info,
17 const HttpRequestHeaders& auth_headers,
18 const HostPortPair& endpoint,
19 std::string* request_line,
20 HttpRequestHeaders* request_headers) {
21 // RFC 2616 Section 9 says the Host request-header field MUST accompany all
22 // HTTP/1.1 requests. Add "Proxy-Connection: keep-alive" for compat with
23 // HTTP/1.0 proxies such as Squid (required for NTLM authentication).
24 *request_line = StringPrintf(
25 "CONNECT %s HTTP/1.1\r\n", endpoint.ToString().c_str());
26 request_headers->SetHeader(HttpRequestHeaders::kHost,
27 GetHostAndOptionalPort(request_info.url));
28 request_headers->SetHeader(HttpRequestHeaders::kProxyConnection,
29 "keep-alive");
30
31 std::string user_agent;
32 if (request_info.extra_headers.GetHeader(HttpRequestHeaders::kUserAgent,
33 &user_agent))
34 request_headers->SetHeader(HttpRequestHeaders::kUserAgent, user_agent);
35
36 request_headers->MergeFrom(auth_headers);
37 }
38
39 } // namespace net
40