1 // Copyright (c) 2013 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.
5 #include "content/browser/renderer_host/pepper/pepper_network_proxy_host.h"
8 #include "content/browser/renderer_host/pepper/browser_ppapi_host_impl.h"
9 #include "content/browser/renderer_host/pepper/pepper_socket_utils.h"
10 #include "content/public/browser/browser_context.h"
11 #include "content/public/browser/browser_thread.h"
12 #include "content/public/browser/render_process_host.h"
13 #include "content/public/common/socket_permission_request.h"
14 #include "net/base/load_flags.h"
15 #include "net/base/net_errors.h"
16 #include "net/proxy/proxy_info.h"
17 #include "net/url_request/url_request_context.h"
18 #include "net/url_request/url_request_context_getter.h"
19 #include "ppapi/c/pp_errors.h"
20 #include "ppapi/host/dispatch_host_message.h"
21 #include "ppapi/host/ppapi_host.h"
22 #include "ppapi/proxy/ppapi_messages.h"
26 PepperNetworkProxyHost::PepperNetworkProxyHost(BrowserPpapiHostImpl* host,
29 : ResourceHost(host->GetPpapiHost(), instance, resource),
32 waiting_for_ui_thread_data_(true),
34 int render_process_id(0), render_frame_id(0);
35 host->GetRenderFrameIDsForInstance(
36 instance, &render_process_id, &render_frame_id);
37 BrowserThread::PostTaskAndReplyWithResult(
40 base::Bind(&GetUIThreadDataOnUIThread,
43 host->external_plugin()),
44 base::Bind(&PepperNetworkProxyHost::DidGetUIThreadData,
45 weak_factory_.GetWeakPtr()));
48 PepperNetworkProxyHost::~PepperNetworkProxyHost() {
49 while (!pending_requests_.empty()) {
50 // If the proxy_service_ is NULL, we shouldn't have any outstanding
52 DCHECK(proxy_service_);
53 net::ProxyService::PacRequest* request = pending_requests_.front();
54 proxy_service_->CancelPacRequest(request);
55 pending_requests_.pop();
59 PepperNetworkProxyHost::UIThreadData::UIThreadData() : is_allowed(false) {}
61 PepperNetworkProxyHost::UIThreadData::~UIThreadData() {}
64 PepperNetworkProxyHost::UIThreadData
65 PepperNetworkProxyHost::GetUIThreadDataOnUIThread(int render_process_id,
67 bool is_external_plugin) {
68 DCHECK_CURRENTLY_ON(BrowserThread::UI);
69 PepperNetworkProxyHost::UIThreadData result;
70 RenderProcessHost* render_process_host =
71 RenderProcessHost::FromID(render_process_id);
72 if (render_process_host && render_process_host->GetBrowserContext()) {
73 result.context_getter =
74 render_process_host->GetBrowserContext()
75 ->GetRequestContextForRenderProcess(render_process_id);
78 SocketPermissionRequest request(
79 content::SocketPermissionRequest::RESOLVE_PROXY, std::string(), 0);
81 pepper_socket_utils::CanUseSocketAPIs(is_external_plugin,
82 false /* is_private_api */,
89 void PepperNetworkProxyHost::DidGetUIThreadData(
90 const UIThreadData& ui_thread_data) {
91 is_allowed_ = ui_thread_data.is_allowed;
92 if (ui_thread_data.context_getter.get() &&
93 ui_thread_data.context_getter->GetURLRequestContext()) {
95 ui_thread_data.context_getter->GetURLRequestContext()->proxy_service();
97 waiting_for_ui_thread_data_ = false;
98 if (!proxy_service_) {
99 DLOG_IF(WARNING, proxy_service_)
100 << "Failed to find a ProxyService for Pepper plugin.";
102 TryToSendUnsentRequests();
105 int32_t PepperNetworkProxyHost::OnResourceMessageReceived(
106 const IPC::Message& msg,
107 ppapi::host::HostMessageContext* context) {
108 PPAPI_BEGIN_MESSAGE_MAP(PepperNetworkProxyHost, msg)
109 PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_NetworkProxy_GetProxyForURL,
111 PPAPI_END_MESSAGE_MAP()
112 return PP_ERROR_FAILED;
115 int32_t PepperNetworkProxyHost::OnMsgGetProxyForURL(
116 ppapi::host::HostMessageContext* context,
117 const std::string& url) {
119 if (gurl.is_valid()) {
120 UnsentRequest request = {gurl, context->MakeReplyMessageContext()};
121 unsent_requests_.push(request);
122 TryToSendUnsentRequests();
124 SendFailureReply(PP_ERROR_BADARGUMENT, context->MakeReplyMessageContext());
126 return PP_OK_COMPLETIONPENDING;
129 void PepperNetworkProxyHost::TryToSendUnsentRequests() {
130 if (waiting_for_ui_thread_data_)
133 while (!unsent_requests_.empty()) {
134 const UnsentRequest& request = unsent_requests_.front();
135 if (!proxy_service_) {
136 SendFailureReply(PP_ERROR_FAILED, request.reply_context);
137 } else if (!is_allowed_) {
138 SendFailureReply(PP_ERROR_NOACCESS, request.reply_context);
140 // Everything looks valid, so try to resolve the proxy.
141 net::ProxyInfo* proxy_info = new net::ProxyInfo;
142 net::ProxyService::PacRequest* pending_request = NULL;
143 base::Callback<void(int)> callback =
144 base::Bind(&PepperNetworkProxyHost::OnResolveProxyCompleted,
145 weak_factory_.GetWeakPtr(),
146 request.reply_context,
147 base::Owned(proxy_info));
148 int result = proxy_service_->ResolveProxy(request.url,
155 pending_requests_.push(pending_request);
156 // If it was handled synchronously, we must run the callback now;
157 // proxy_service_ won't run it for us in this case.
158 if (result != net::ERR_IO_PENDING)
159 callback.Run(result);
161 unsent_requests_.pop();
165 void PepperNetworkProxyHost::OnResolveProxyCompleted(
166 ppapi::host::ReplyMessageContext context,
167 net::ProxyInfo* proxy_info,
169 pending_requests_.pop();
171 if (result != net::OK) {
172 // Currently, the only proxy-specific error we could get is
173 // MANDATORY_PROXY_CONFIGURATION_FAILED. There's really no action a plugin
174 // can take in this case, so there's no need to distinguish it from other
176 context.params.set_result(PP_ERROR_FAILED);
178 host()->SendReply(context,
179 PpapiPluginMsg_NetworkProxy_GetProxyForURLReply(
180 proxy_info->ToPacString()));
183 void PepperNetworkProxyHost::SendFailureReply(
185 ppapi::host::ReplyMessageContext context) {
186 context.params.set_result(error);
188 context, PpapiPluginMsg_NetworkProxy_GetProxyForURLReply(std::string()));
191 } // namespace content