1/*
2 * libjingle
3 * Copyright 2006, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "talk/base/httprequest.h"
29
30#include "talk/base/common.h"
31#include "talk/base/firewallsocketserver.h"
32#include "talk/base/httpclient.h"
33#include "talk/base/logging.h"
34#include "talk/base/physicalsocketserver.h"
35#include "talk/base/socketadapters.h"
36#include "talk/base/socketpool.h"
37#include "talk/base/ssladapter.h"
38
39using namespace talk_base;
40
41///////////////////////////////////////////////////////////////////////////////
42// HttpMonitor
43///////////////////////////////////////////////////////////////////////////////
44
45HttpMonitor::HttpMonitor(SocketServer *ss) {
46  ASSERT(Thread::Current() != NULL);
47  ss_ = ss;
48  reset();
49}
50
51void HttpMonitor::Connect(HttpClient *http) {
52  http->SignalHttpClientComplete.connect(this,
53    &HttpMonitor::OnHttpClientComplete);
54}
55
56void HttpMonitor::OnHttpClientComplete(HttpClient * http, HttpErrorType error) {
57  complete_ = true;
58  error_ = error;
59  ss_->WakeUp();
60}
61
62///////////////////////////////////////////////////////////////////////////////
63// HttpRequest
64///////////////////////////////////////////////////////////////////////////////
65
66const int kDefaultHTTPTimeout = 30 * 1000; // 30 sec
67
68HttpRequest::HttpRequest(const std::string &user_agent)
69    : firewall_(0), port_(80), secure_(false),
70      timeout_(kDefaultHTTPTimeout), fail_redirect_(false),
71      client_(user_agent.c_str(), NULL), error_(HE_NONE) {
72}
73
74void HttpRequest::Send() {
75  // TODO: Rewrite this to use the thread's native socket server, and a more
76  // natural flow?
77
78  PhysicalSocketServer physical;
79  SocketServer * ss = &physical;
80  if (firewall_) {
81    ss = new FirewallSocketServer(ss, firewall_);
82  }
83
84  SslSocketFactory factory(ss, client_.agent());
85  factory.SetProxy(proxy_);
86  if (secure_)
87    factory.UseSSL(host_.c_str());
88
89  //factory.SetLogging("HttpRequest");
90
91  ReuseSocketPool pool(&factory);
92  client_.set_pool(&pool);
93
94  bool transparent_proxy = (port_ == 80) && ((proxy_.type == PROXY_HTTPS) ||
95                           (proxy_.type == PROXY_UNKNOWN));
96
97  if (transparent_proxy) {
98    client_.set_proxy(proxy_);
99  }
100  client_.set_fail_redirect(fail_redirect_);
101
102  SocketAddress server(host_, port_);
103  client_.set_server(server);
104
105  LOG(LS_INFO) << "HttpRequest start: " << host_ + client_.request().path;
106
107  HttpMonitor monitor(ss);
108  monitor.Connect(&client_);
109  client_.start();
110  ss->Wait(timeout_, true);
111  if (!monitor.done()) {
112    LOG(LS_INFO) << "HttpRequest request timed out";
113    client_.reset();
114    return;
115  }
116
117  set_error(monitor.error());
118  if (error_) {
119    LOG(LS_INFO) << "HttpRequest request error: " << error_;
120    return;
121  }
122
123  std::string value;
124  if (client_.response().hasHeader(HH_LOCATION, &value)) {
125    response_redirect_ = value.c_str();
126  }
127}
128