src/apps/shell/browser/shell_content_browser_client.cc

   1 // Copyright 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.
   4
   5 #include "apps/shell/browser/shell_content_browser_client.h"
   6
   7 #include "apps/shell/browser/shell_browser_context.h"
   8 #include "apps/shell/browser/shell_browser_main_parts.h"
   9 #include "apps/shell/browser/shell_extension_system.h"
  10 #include "base/command_line.h"
  11 #include "chrome/browser/extensions/extension_protocols.h"
  12 #include "chrome/browser/extensions/extension_resource_protocols.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "content/public/browser/render_process_host.h"
  15 #include "content/public/browser/site_instance.h"
  16 #include "content/public/common/content_switches.h"
  17 #include "content/public/common/url_constants.h"
  18 #include "content/shell/browser/shell_browser_context.h"
  19 #include "extensions/browser/extension_message_filter.h"
  20 #include "extensions/browser/extension_registry.h"
  21 #include "extensions/browser/info_map.h"
  22 #include "extensions/browser/process_map.h"
  23 #include "extensions/common/constants.h"
  24 #include "extensions/common/extension.h"
  25 #include "extensions/common/switches.h"
  26 #include "url/gurl.h"
  27
  28 using content::BrowserThread;
  29 using extensions::ExtensionRegistry;
  30
  31 namespace apps {
  32
  33 ShellContentBrowserClient::ShellContentBrowserClient()
  34     : browser_main_parts_(NULL) {
  35 }
  36
  37 ShellContentBrowserClient::~ShellContentBrowserClient() {
  38 }
  39
  40 content::BrowserMainParts* ShellContentBrowserClient::CreateBrowserMainParts(
  41     const content::MainFunctionParams& parameters) {
  42   browser_main_parts_ = new ShellBrowserMainParts(parameters);
  43   return browser_main_parts_;
  44 }
  45
  46 void ShellContentBrowserClient::RenderProcessWillLaunch(
  47     content::RenderProcessHost* host) {
  48   int render_process_id = host->GetID();
  49   host->AddFilter(new extensions::ExtensionMessageFilter(
  50       render_process_id, browser_main_parts_->browser_context()));
  51 }
  52
  53 net::URLRequestContextGetter*
  54 ShellContentBrowserClient::CreateRequestContext(
  55     content::BrowserContext* content_browser_context,
  56     content::ProtocolHandlerMap* protocol_handlers) {
  57   // Handle chrome-extension: and chrome-extension-resource: requests.
  58   extensions::InfoMap* extension_info_map =
  59       browser_main_parts_->extension_system()->info_map();
  60   (*protocol_handlers)[extensions::kExtensionScheme] =
  61       linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
  62           CreateExtensionProtocolHandler(false /*is_incognito*/,
  63                                          extension_info_map));
  64   (*protocol_handlers)[extensions::kExtensionResourceScheme] =
  65       linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
  66           CreateExtensionResourceProtocolHandler());
  67   // Let content::ShellBrowserContext handle the rest of the setup.
  68   return browser_main_parts_->browser_context()->CreateRequestContext(
  69       protocol_handlers);
  70 }
  71
  72 bool ShellContentBrowserClient::IsHandledURL(const GURL& url) {
  73   if (!url.is_valid())
  74     return false;
  75   // Keep in sync with ProtocolHandlers added in CreateRequestContext() and in
  76   // content::ShellURLRequestContextGetter::GetURLRequestContext().
  77   static const char* const kProtocolList[] = {
  78       chrome::kBlobScheme,
  79       content::kChromeDevToolsScheme,
  80       content::kChromeUIScheme,
  81       content::kDataScheme,
  82       content::kFileScheme,
  83       content::kFileSystemScheme,
  84       extensions::kExtensionScheme,
  85       extensions::kExtensionResourceScheme,
  86   };
  87   for (size_t i = 0; i < arraysize(kProtocolList); ++i) {
  88     if (url.scheme() == kProtocolList[i])
  89       return true;
  90   }
  91   return false;
  92 }
  93
  94 void ShellContentBrowserClient::SiteInstanceGotProcess(
  95     content::SiteInstance* site_instance) {
  96   // If this isn't an extension renderer there's nothing to do.
  97   const extensions::Extension* extension = GetExtension(site_instance);
  98   if (!extension)
  99     return;
 100
 101   extensions::ProcessMap::Get(browser_main_parts_->browser_context())
 102       ->Insert(extension->id(),
 103                site_instance->GetProcess()->GetID(),
 104                site_instance->GetId());
 105
 106   BrowserThread::PostTask(
 107       BrowserThread::IO,
 108       FROM_HERE,
 109       base::Bind(&extensions::InfoMap::RegisterExtensionProcess,
 110                  browser_main_parts_->extension_system()->info_map(),
 111                  extension->id(),
 112                  site_instance->GetProcess()->GetID(),
 113                  site_instance->GetId()));
 114 }
 115
 116 void ShellContentBrowserClient::SiteInstanceDeleting(
 117     content::SiteInstance* site_instance) {
 118   // If this isn't an extension renderer there's nothing to do.
 119   const extensions::Extension* extension = GetExtension(site_instance);
 120   if (!extension)
 121     return;
 122
 123   extensions::ProcessMap::Get(browser_main_parts_->browser_context())
 124       ->Remove(extension->id(),
 125                site_instance->GetProcess()->GetID(),
 126                site_instance->GetId());
 127
 128   BrowserThread::PostTask(
 129       BrowserThread::IO,
 130       FROM_HERE,
 131       base::Bind(&extensions::InfoMap::UnregisterExtensionProcess,
 132                  browser_main_parts_->extension_system()->info_map(),
 133                  extension->id(),
 134                  site_instance->GetProcess()->GetID(),
 135                  site_instance->GetId()));
 136 }
 137
 138 void ShellContentBrowserClient::AppendExtraCommandLineSwitches(
 139     CommandLine* command_line, int child_process_id) {
 140   std::string process_type =
 141       command_line->GetSwitchValueASCII(switches::kProcessType);
 142   if (process_type == switches::kRendererProcess) {
 143     // TODO(jamescook): Should we check here if the process is in the extension
 144     // service process map, or can we assume all renderers are extension
 145     // renderers?
 146     command_line->AppendSwitch(extensions::switches::kExtensionProcess);
 147   }
 148 }
 149
 150 const extensions::Extension* ShellContentBrowserClient::GetExtension(
 151     content::SiteInstance* site_instance) {
 152   ExtensionRegistry* registry =
 153       ExtensionRegistry::Get(site_instance->GetBrowserContext());
 154   return registry->enabled_extensions().GetExtensionOrAppByURL(
 155       site_instance->GetSiteURL());
 156 }
 157
 158 }  // namespace apps