content/ppapi_plugin/broker_process_dispatcher.cc

   1 // Copyright (c) 2012 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 "content/ppapi_plugin/broker_process_dispatcher.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "content/child/child_process.h"
  12 #include "ppapi/c/pp_bool.h"
  13 #include "ppapi/c/private/ppp_flash_browser_operations.h"
  14 #include "ppapi/proxy/ppapi_messages.h"
  15
  16 namespace content {
  17 namespace {
  18
  19 // How long we wait before releasing the broker process.
  20 const int kBrokerReleaseTimeSeconds = 30;
  21
  22 std::string ConvertPluginDataPath(const base::FilePath& plugin_data_path) {
  23   // The string is always 8-bit, convert on Windows.
  24 #if defined(OS_WIN)
  25   return WideToUTF8(plugin_data_path.value());
  26 #else
  27   return plugin_data_path.value();
  28 #endif
  29 }
  30
  31 struct GetPermissionSettingsContext {
  32   GetPermissionSettingsContext(
  33       const base::WeakPtr<BrokerProcessDispatcher> in_dispatcher,
  34       uint32 in_request_id)
  35       : dispatcher(in_dispatcher),
  36         request_id(in_request_id) {
  37   }
  38
  39   base::WeakPtr<BrokerProcessDispatcher> dispatcher;
  40   uint32 request_id;
  41 };
  42
  43 void GetPermissionSettingsCallback(
  44     void* user_data,
  45     PP_Bool success,
  46     PP_Flash_BrowserOperations_Permission default_permission,
  47     uint32_t site_count,
  48     const PP_Flash_BrowserOperations_SiteSetting sites[]) {
  49   scoped_ptr<GetPermissionSettingsContext> context(
  50       reinterpret_cast<GetPermissionSettingsContext*>(user_data));
  51
  52   if (!context->dispatcher.get())
  53     return;
  54
  55   ppapi::FlashSiteSettings site_vector;
  56   if (success) {
  57     site_vector.reserve(site_count);
  58     for (uint32_t i = 0; i < site_count; ++i) {
  59       if (!sites[i].site) {
  60         success = PP_FALSE;
  61         break;
  62       }
  63       site_vector.push_back(
  64           ppapi::FlashSiteSetting(sites[i].site, sites[i].permission));
  65     }
  66
  67     if (!success)
  68       site_vector.clear();
  69   }
  70   context->dispatcher->OnGetPermissionSettingsCompleted(
  71       context->request_id, PP_ToBool(success), default_permission, site_vector);
  72 }
  73
  74 }  // namespace
  75
  76 BrokerProcessDispatcher::BrokerProcessDispatcher(
  77     PP_GetInterface_Func get_plugin_interface,
  78     PP_ConnectInstance_Func connect_instance)
  79     : ppapi::proxy::BrokerSideDispatcher(connect_instance),
  80       get_plugin_interface_(get_plugin_interface),
  81       flash_browser_operations_1_3_(NULL),
  82       flash_browser_operations_1_2_(NULL),
  83       flash_browser_operations_1_0_(NULL) {
  84   ChildProcess::current()->AddRefProcess();
  85
  86   if (get_plugin_interface) {
  87     flash_browser_operations_1_0_ =
  88         static_cast<const PPP_Flash_BrowserOperations_1_0*>(
  89             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_0));
  90
  91     flash_browser_operations_1_2_ =
  92         static_cast<const PPP_Flash_BrowserOperations_1_2*>(
  93             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_2));
  94
  95     flash_browser_operations_1_3_ =
  96         static_cast<const PPP_Flash_BrowserOperations_1_3*>(
  97             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_3));
  98   }
  99 }
 100
 101 BrokerProcessDispatcher::~BrokerProcessDispatcher() {
 102   DVLOG(1) << "BrokerProcessDispatcher::~BrokerProcessDispatcher()";
 103   // Don't free the process right away. This timer allows the child process
 104   // to be re-used if the user rapidly goes to a new page that requires this
 105   // plugin. This is the case for common plugins where they may be used on a
 106   // source and destination page of a navigation. We don't want to tear down
 107   // and re-start processes each time in these cases.
 108   base::MessageLoop::current()->PostDelayedTask(
 109       FROM_HERE,
 110       base::Bind(&ChildProcess::ReleaseProcess,
 111                  base::Unretained(ChildProcess::current())),
 112       base::TimeDelta::FromSeconds(kBrokerReleaseTimeSeconds));
 113 }
 114
 115 bool BrokerProcessDispatcher::OnMessageReceived(const IPC::Message& msg) {
 116   IPC_BEGIN_MESSAGE_MAP(BrokerProcessDispatcher, msg)
 117     IPC_MESSAGE_HANDLER(PpapiMsg_GetSitesWithData, OnGetSitesWithData)
 118     IPC_MESSAGE_HANDLER(PpapiMsg_ClearSiteData, OnClearSiteData)
 119     IPC_MESSAGE_HANDLER(PpapiMsg_DeauthorizeContentLicenses,
 120                         OnDeauthorizeContentLicenses)
 121     IPC_MESSAGE_HANDLER(PpapiMsg_GetPermissionSettings, OnGetPermissionSettings)
 122     IPC_MESSAGE_HANDLER(PpapiMsg_SetDefaultPermission, OnSetDefaultPermission)
 123     IPC_MESSAGE_HANDLER(PpapiMsg_SetSitePermission, OnSetSitePermission)
 124     IPC_MESSAGE_UNHANDLED(return BrokerSideDispatcher::OnMessageReceived(msg))
 125   IPC_END_MESSAGE_MAP()
 126   return true;
 127 }
 128
 129 void BrokerProcessDispatcher::OnGetPermissionSettingsCompleted(
 130     uint32 request_id,
 131     bool success,
 132     PP_Flash_BrowserOperations_Permission default_permission,
 133     const ppapi::FlashSiteSettings& sites) {
 134   Send(new PpapiHostMsg_GetPermissionSettingsResult(
 135       request_id, success, default_permission, sites));
 136 }
 137
 138 void BrokerProcessDispatcher::OnGetSitesWithData(
 139     uint32 request_id,
 140     const base::FilePath& plugin_data_path) {
 141   std::vector<std::string> sites;
 142   GetSitesWithData(plugin_data_path, &sites);
 143   Send(new PpapiHostMsg_GetSitesWithDataResult(request_id, sites));
 144 }
 145
 146 void BrokerProcessDispatcher::OnClearSiteData(
 147     uint32 request_id,
 148     const base::FilePath& plugin_data_path,
 149     const std::string& site,
 150     uint64 flags,
 151     uint64 max_age) {
 152   Send(new PpapiHostMsg_ClearSiteDataResult(
 153       request_id, ClearSiteData(plugin_data_path, site, flags, max_age)));
 154 }
 155
 156 void BrokerProcessDispatcher::OnDeauthorizeContentLicenses(
 157     uint32 request_id,
 158     const base::FilePath& plugin_data_path) {
 159   Send(new PpapiHostMsg_DeauthorizeContentLicensesResult(
 160       request_id, DeauthorizeContentLicenses(plugin_data_path)));
 161 }
 162
 163 void BrokerProcessDispatcher::OnGetPermissionSettings(
 164     uint32 request_id,
 165     const base::FilePath& plugin_data_path,
 166     PP_Flash_BrowserOperations_SettingType setting_type) {
 167   if (flash_browser_operations_1_3_) {
 168     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 169     // The GetPermissionSettingsContext object will be deleted in
 170     // GetPermissionSettingsCallback().
 171     flash_browser_operations_1_3_->GetPermissionSettings(
 172         data_str.c_str(), setting_type, &GetPermissionSettingsCallback,
 173         new GetPermissionSettingsContext(AsWeakPtr(), request_id));
 174     return;
 175   }
 176
 177   if (flash_browser_operations_1_2_) {
 178     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 179     // The GetPermissionSettingsContext object will be deleted in
 180     // GetPermissionSettingsCallback().
 181     flash_browser_operations_1_2_->GetPermissionSettings(
 182         data_str.c_str(), setting_type, &GetPermissionSettingsCallback,
 183         new GetPermissionSettingsContext(AsWeakPtr(), request_id));
 184     return;
 185   }
 186
 187   OnGetPermissionSettingsCompleted(
 188       request_id, false, PP_FLASH_BROWSEROPERATIONS_PERMISSION_DEFAULT,
 189       ppapi::FlashSiteSettings());
 190   return;
 191 }
 192
 193 void BrokerProcessDispatcher::OnSetDefaultPermission(
 194     uint32 request_id,
 195     const base::FilePath& plugin_data_path,
 196     PP_Flash_BrowserOperations_SettingType setting_type,
 197     PP_Flash_BrowserOperations_Permission permission,
 198     bool clear_site_specific) {
 199   Send(new PpapiHostMsg_SetDefaultPermissionResult(
 200       request_id,
 201       SetDefaultPermission(plugin_data_path, setting_type, permission,
 202                            clear_site_specific)));
 203 }
 204
 205 void BrokerProcessDispatcher::OnSetSitePermission(
 206     uint32 request_id,
 207     const base::FilePath& plugin_data_path,
 208     PP_Flash_BrowserOperations_SettingType setting_type,
 209     const ppapi::FlashSiteSettings& sites) {
 210   Send(new PpapiHostMsg_SetSitePermissionResult(
 211       request_id, SetSitePermission(plugin_data_path, setting_type, sites)));
 212 }
 213
 214 void BrokerProcessDispatcher::GetSitesWithData(
 215     const base::FilePath& plugin_data_path,
 216     std::vector<std::string>* site_vector) {
 217   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 218   if (flash_browser_operations_1_3_) {
 219     char** sites = NULL;
 220     flash_browser_operations_1_3_->GetSitesWithData(data_str.c_str(), &sites);
 221     if (!sites)
 222       return;
 223
 224     for (size_t i = 0; sites[i]; ++i)
 225       site_vector->push_back(sites[i]);
 226
 227     flash_browser_operations_1_3_->FreeSiteList(sites);
 228   }
 229 }
 230
 231 bool BrokerProcessDispatcher::ClearSiteData(
 232     const base::FilePath& plugin_data_path,
 233     const std::string& site,
 234     uint64 flags,
 235     uint64 max_age) {
 236   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 237   if (flash_browser_operations_1_3_) {
 238     flash_browser_operations_1_3_->ClearSiteData(
 239         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 240     return true;
 241   }
 242
 243   // TODO(viettrungluu): Remove this (and the 1.0 interface) sometime after M21
 244   // goes to Stable.
 245   if (flash_browser_operations_1_2_) {
 246     flash_browser_operations_1_2_->ClearSiteData(
 247         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 248     return true;
 249   }
 250
 251   if (flash_browser_operations_1_0_) {
 252     flash_browser_operations_1_0_->ClearSiteData(
 253         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 254     return true;
 255   }
 256
 257   return false;
 258 }
 259
 260 bool BrokerProcessDispatcher::DeauthorizeContentLicenses(
 261     const base::FilePath& plugin_data_path) {
 262   if (flash_browser_operations_1_3_) {
 263     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 264     return PP_ToBool(flash_browser_operations_1_3_->DeauthorizeContentLicenses(
 265         data_str.c_str()));
 266   }
 267
 268   if (flash_browser_operations_1_2_) {
 269     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 270     return PP_ToBool(flash_browser_operations_1_2_->DeauthorizeContentLicenses(
 271         data_str.c_str()));
 272   }
 273
 274   return false;
 275 }
 276
 277 bool BrokerProcessDispatcher::SetDefaultPermission(
 278     const base::FilePath& plugin_data_path,
 279     PP_Flash_BrowserOperations_SettingType setting_type,
 280     PP_Flash_BrowserOperations_Permission permission,
 281     bool clear_site_specific) {
 282   if (flash_browser_operations_1_3_) {
 283     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 284     return PP_ToBool(flash_browser_operations_1_3_->SetDefaultPermission(
 285         data_str.c_str(), setting_type, permission,
 286         PP_FromBool(clear_site_specific)));
 287   }
 288
 289   if (flash_browser_operations_1_2_) {
 290     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 291     return PP_ToBool(flash_browser_operations_1_2_->SetDefaultPermission(
 292         data_str.c_str(), setting_type, permission,
 293         PP_FromBool(clear_site_specific)));
 294   }
 295
 296   return false;
 297 }
 298
 299 bool BrokerProcessDispatcher::SetSitePermission(
 300     const base::FilePath& plugin_data_path,
 301     PP_Flash_BrowserOperations_SettingType setting_type,
 302     const ppapi::FlashSiteSettings& sites) {
 303   if (sites.empty())
 304     return true;
 305
 306   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 307   scoped_ptr<PP_Flash_BrowserOperations_SiteSetting[]> site_array(
 308       new PP_Flash_BrowserOperations_SiteSetting[sites.size()]);
 309
 310   for (size_t i = 0; i < sites.size(); ++i) {
 311     site_array[i].site = sites[i].site.c_str();
 312     site_array[i].permission = sites[i].permission;
 313   }
 314
 315   if (flash_browser_operations_1_3_) {
 316     PP_Bool result = flash_browser_operations_1_3_->SetSitePermission(
 317         data_str.c_str(), setting_type, sites.size(), site_array.get());
 318
 319     return PP_ToBool(result);
 320   }
 321
 322   if (flash_browser_operations_1_2_) {
 323     PP_Bool result = flash_browser_operations_1_2_->SetSitePermission(
 324         data_str.c_str(), setting_type, sites.size(), site_array.get());
 325
 326     return PP_ToBool(result);
 327   }
 328
 329   return false;
 330 }
 331
 332 }  // namespace content