Android: Remove web_request extension API.

chrome/browser/net/chrome_extensions_network_delegate.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/net/chrome_extensions_network_delegate.h"
+
+#include "net/base/net_errors.h"
+
+#if defined(ENABLE_EXTENSIONS)
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/extensions/api/proxy/proxy_api.h"
+#include "chrome/browser/extensions/api/web_request/web_request_api.h"
+#include "chrome/browser/extensions/event_router_forwarder.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_frame_host.h"
+#include "content/public/browser/resource_request_info.h"
+#include "extensions/browser/extension_system.h"
+#include "extensions/browser/info_map.h"
+#include "extensions/browser/process_manager.h"
+#include "net/url_request/url_request.h"
+
+using content::BrowserThread;
+using content::ResourceRequestInfo;
+
+namespace {
+
+enum RequestStatus { REQUEST_STARTED, REQUEST_DONE };
+
+// Notifies the extensions::ProcessManager that a request has started or stopped
+// for a particular RenderFrame.
+void NotifyEPMRequestStatus(RequestStatus status,
+                            void* profile_id,
+                            int process_id,
+                            int render_frame_id) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  Profile* profile = reinterpret_cast<Profile*>(profile_id);
+  if (!g_browser_process->profile_manager()->IsValidProfile(profile))
+    return;
+
+  extensions::ProcessManager* process_manager =
+      extensions::ExtensionSystem::Get(profile)->process_manager();
+  // This may be NULL in unit tests.
+  if (!process_manager)
+    return;
+
+  // Will be NULL if the request was not issued on behalf of a renderer (e.g. a
+  // system-level request).
+  content::RenderFrameHost* render_frame_host =
+      content::RenderFrameHost::FromID(process_id, render_frame_id);
+  if (render_frame_host) {
+    if (status == REQUEST_STARTED) {
+      process_manager->OnNetworkRequestStarted(render_frame_host);
+    } else if (status == REQUEST_DONE) {
+      process_manager->OnNetworkRequestDone(render_frame_host);
+    } else {
+      NOTREACHED();
+    }
+  }
+}
+
+void ForwardRequestStatus(
+    RequestStatus status, net::URLRequest* request, void* profile_id) {
+  const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
+  if (!info)
+    return;
+
+  int process_id, render_frame_id;
+  if (info->GetAssociatedRenderFrame(&process_id, &render_frame_id)) {
+    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+        base::Bind(&NotifyEPMRequestStatus,
+                   status, profile_id, process_id, render_frame_id));
+  }
+}
+
+class ChromeExtensionsNetworkDelegateImpl
+    : public ChromeExtensionsNetworkDelegate {
+ public:
+  explicit ChromeExtensionsNetworkDelegateImpl(
+      extensions::EventRouterForwarder* event_router);
+  virtual ~ChromeExtensionsNetworkDelegateImpl();
+
+ private:
+  // ChromeExtensionsNetworkDelegate implementation.
+  virtual void ForwardProxyErrors(net::URLRequest* request) OVERRIDE;
+  virtual void ForwardStartRequestStatus(net::URLRequest* request) OVERRIDE;
+  virtual void ForwardDoneRequestStatus(net::URLRequest* request) OVERRIDE;
+  virtual int OnBeforeURLRequest(net::URLRequest* request,
+                                 const net::CompletionCallback& callback,
+                                 GURL* new_url) OVERRIDE;
+  virtual int OnBeforeSendHeaders(net::URLRequest* request,
+                                  const net::CompletionCallback& callback,
+                                  net::HttpRequestHeaders* headers) OVERRIDE;
+  virtual void OnSendHeaders(net::URLRequest* request,
+                             const net::HttpRequestHeaders& headers) OVERRIDE;
+  virtual int OnHeadersReceived(
+      net::URLRequest* request,
+      const net::CompletionCallback& callback,
+      const net::HttpResponseHeaders* original_response_headers,
+      scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
+      GURL* allowed_unsafe_redirect_url) OVERRIDE;
+  virtual void OnBeforeRedirect(net::URLRequest* request,
+                                const GURL& new_location) OVERRIDE;
+  virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
+  virtual void OnCompleted(net::URLRequest* request, bool started) OVERRIDE;
+  virtual void OnURLRequestDestroyed(net::URLRequest* request) OVERRIDE;
+  virtual void OnPACScriptError(int line_number,
+                                const base::string16& error) OVERRIDE;
+  virtual net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
+      net::URLRequest* request,
+      const net::AuthChallengeInfo& auth_info,
+      const AuthCallback& callback,
+      net::AuthCredentials* credentials) OVERRIDE;
+
+  scoped_refptr<extensions::EventRouterForwarder> event_router_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsNetworkDelegateImpl);
+};
+
+ChromeExtensionsNetworkDelegateImpl::ChromeExtensionsNetworkDelegateImpl(
+    extensions::EventRouterForwarder* event_router) {
+  DCHECK(event_router);
+  event_router_ = event_router;
+}
+
+ChromeExtensionsNetworkDelegateImpl::~ChromeExtensionsNetworkDelegateImpl() {}
+
+void ChromeExtensionsNetworkDelegateImpl::ForwardProxyErrors(
+    net::URLRequest* request) {
+  if (request->status().status() == net::URLRequestStatus::FAILED) {
+    switch (request->status().error()) {
+      case net::ERR_PROXY_AUTH_UNSUPPORTED:
+      case net::ERR_PROXY_CONNECTION_FAILED:
+      case net::ERR_TUNNEL_CONNECTION_FAILED:
+        extensions::ProxyEventRouter::GetInstance()->OnProxyError(
+            event_router_.get(), profile_, request->status().error());
+    }
+  }
+}
+
+void ChromeExtensionsNetworkDelegateImpl::ForwardStartRequestStatus(
+    net::URLRequest* request) {
+  ForwardRequestStatus(REQUEST_STARTED, request, profile_);
+}
+
+void ChromeExtensionsNetworkDelegateImpl::ForwardDoneRequestStatus(
+    net::URLRequest* request) {
+  ForwardRequestStatus(REQUEST_DONE, request, profile_);
+}
+
+int ChromeExtensionsNetworkDelegateImpl::OnBeforeURLRequest(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    GURL* new_url) {
+  return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRequest(
+      profile_, extension_info_map_.get(), request, callback, new_url);
+}
+
+int ChromeExtensionsNetworkDelegateImpl::OnBeforeSendHeaders(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    net::HttpRequestHeaders* headers) {
+  return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeSendHeaders(
+      profile_, extension_info_map_.get(), request, callback, headers);
+}
+
+void ChromeExtensionsNetworkDelegateImpl::OnSendHeaders(
+    net::URLRequest* request,
+    const net::HttpRequestHeaders& headers) {
+  ExtensionWebRequestEventRouter::GetInstance()->OnSendHeaders(
+      profile_, extension_info_map_.get(), request, headers);
+}
+
+int ChromeExtensionsNetworkDelegateImpl::OnHeadersReceived(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    const net::HttpResponseHeaders* original_response_headers,
+    scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
+    GURL* allowed_unsafe_redirect_url) {
+  return ExtensionWebRequestEventRouter::GetInstance()->OnHeadersReceived(
+      profile_,
+      extension_info_map_.get(),
+      request,
+      callback,
+      original_response_headers,
+      override_response_headers,
+      allowed_unsafe_redirect_url);
+}
+
+void ChromeExtensionsNetworkDelegateImpl::OnBeforeRedirect(
+    net::URLRequest* request,
+    const GURL& new_location) {
+  ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRedirect(
+      profile_, extension_info_map_.get(), request, new_location);
+}
+
+
+void ChromeExtensionsNetworkDelegateImpl::OnResponseStarted(
+    net::URLRequest* request) {
+  ExtensionWebRequestEventRouter::GetInstance()->OnResponseStarted(
+      profile_, extension_info_map_.get(), request);
+  ForwardProxyErrors(request);
+}
+
+void ChromeExtensionsNetworkDelegateImpl::OnCompleted(
+    net::URLRequest* request,
+    bool started) {
+  if (request->status().status() == net::URLRequestStatus::SUCCESS) {
+    bool is_redirect = request->response_headers() &&
+        net::HttpResponseHeaders::IsRedirectResponseCode(
+            request->response_headers()->response_code());
+    if (!is_redirect) {
+      ExtensionWebRequestEventRouter::GetInstance()->OnCompleted(
+          profile_, extension_info_map_.get(), request);
+    }
+    return;
+  }
+
+  if (request->status().status() == net::URLRequestStatus::FAILED ||
+      request->status().status() == net::URLRequestStatus::CANCELED) {
+    ExtensionWebRequestEventRouter::GetInstance()->OnErrorOccurred(
+        profile_, extension_info_map_.get(), request, started);
+    return;
+  }
+
+  NOTREACHED();
+}
+
+void ChromeExtensionsNetworkDelegateImpl::OnURLRequestDestroyed(
+    net::URLRequest* request) {
+  ExtensionWebRequestEventRouter::GetInstance()->OnURLRequestDestroyed(
+      profile_, request);
+}
+
+void ChromeExtensionsNetworkDelegateImpl::OnPACScriptError(
+    int line_number,
+    const base::string16& error) {
+  extensions::ProxyEventRouter::GetInstance()->OnPACScriptError(
+      event_router_.get(), profile_, line_number, error);
+}
+
+net::NetworkDelegate::AuthRequiredResponse
+ChromeExtensionsNetworkDelegateImpl::OnAuthRequired(
+    net::URLRequest* request,
+    const net::AuthChallengeInfo& auth_info,
+    const AuthCallback& callback,
+    net::AuthCredentials* credentials) {
+  return ExtensionWebRequestEventRouter::GetInstance()->OnAuthRequired(
+      profile_, extension_info_map_.get(), request, auth_info, callback,
+      credentials);
+}
+
+}  // namespace
+
+#endif  // defined(ENABLE_EXTENSIONS)
+
+// static
+ChromeExtensionsNetworkDelegate* ChromeExtensionsNetworkDelegate::Create(
+    extensions::EventRouterForwarder* event_router) {
+#if defined(ENABLE_EXTENSIONS)
+  return new ChromeExtensionsNetworkDelegateImpl(event_router);
+#else
+  return new ChromeExtensionsNetworkDelegate();
+#endif
+}
+
+ChromeExtensionsNetworkDelegate::ChromeExtensionsNetworkDelegate()
+    : profile_(NULL) {
+}
+
+ChromeExtensionsNetworkDelegate::~ChromeExtensionsNetworkDelegate() {}
+
+void ChromeExtensionsNetworkDelegate::set_extension_info_map(
+    extensions::InfoMap* extension_info_map) {
+#if defined(ENABLE_EXTENSIONS)
+  extension_info_map_ = extension_info_map;
+#endif
+}
+
+void ChromeExtensionsNetworkDelegate::ForwardProxyErrors(

[Yoyo Zhou, 2014/06/18 23:38:54]

Is it necessary to override these?

[Lei Zhang, 2014/06/18 23:44:27]

I could add #ifdefs for these three. Did you have something else in mind?

[Yoyo Zhou, 2014/06/18 23:55:25]

The NetworkDelegate implementation does nothing here.

+    net::URLRequest* request) {
+}
+
+void ChromeExtensionsNetworkDelegate::ForwardStartRequestStatus(
+    net::URLRequest* request) {
+}
+
+void ChromeExtensionsNetworkDelegate::ForwardDoneRequestStatus(
+    net::URLRequest* request) {
+}
+
+int ChromeExtensionsNetworkDelegate::OnBeforeURLRequest(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    GURL* new_url) {
+  return net::OK;
+}
+
+int ChromeExtensionsNetworkDelegate::OnBeforeSendHeaders(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    net::HttpRequestHeaders* headers) {
+  return net::OK;
+}
+
+void ChromeExtensionsNetworkDelegate::OnSendHeaders(
+    net::URLRequest* request,
+    const net::HttpRequestHeaders& headers) {
+}
+
+int ChromeExtensionsNetworkDelegate::OnHeadersReceived(
+    net::URLRequest* request,
+    const net::CompletionCallback& callback,
+    const net::HttpResponseHeaders* original_response_headers,
+    scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
+    GURL* allowed_unsafe_redirect_url) {
+  return net::OK;
+}
+
+void ChromeExtensionsNetworkDelegate::OnBeforeRedirect(
+    net::URLRequest* request,
+    const GURL& new_location) {
+}
+
+
+void ChromeExtensionsNetworkDelegate::OnResponseStarted(
+    net::URLRequest* request) {
+}
+
+void ChromeExtensionsNetworkDelegate::OnCompleted(
+    net::URLRequest* request,
+    bool started) {
+}
+
+void ChromeExtensionsNetworkDelegate::OnURLRequestDestroyed(
+    net::URLRequest* request) {
+}
+
+void ChromeExtensionsNetworkDelegate::OnPACScriptError(
+    int line_number,
+    const base::string16& error) {
+}
+
+net::NetworkDelegate::AuthRequiredResponse
+ChromeExtensionsNetworkDelegate::OnAuthRequired(
+    net::URLRequest* request,
+    const net::AuthChallengeInfo& auth_info,
+    const AuthCallback& callback,
+    net::AuthCredentials* credentials) {
+  return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
+}