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 base::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   if (get_plugin_interface) {
  85     flash_browser_operations_1_0_ =
  86         static_cast<const PPP_Flash_BrowserOperations_1_0*>(
  87             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_0));
  88
  89     flash_browser_operations_1_2_ =
  90         static_cast<const PPP_Flash_BrowserOperations_1_2*>(
  91             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_2));
  92
  93     flash_browser_operations_1_3_ =
  94         static_cast<const PPP_Flash_BrowserOperations_1_3*>(
  95             get_plugin_interface_(PPP_FLASH_BROWSEROPERATIONS_INTERFACE_1_3));
  96   }
  97 }
  98
  99 BrokerProcessDispatcher::~BrokerProcessDispatcher() {
 100   DVLOG(1) << "BrokerProcessDispatcher::~BrokerProcessDispatcher()";
 101   // Don't free the process right away. This timer allows the child process
 102   // to be re-used if the user rapidly goes to a new page that requires this
 103   // plugin. This is the case for common plugins where they may be used on a
 104   // source and destination page of a navigation. We don't want to tear down
 105   // and re-start processes each time in these cases.
 106   process_ref_.ReleaseWithDelay(
 107       base::TimeDelta::FromSeconds(kBrokerReleaseTimeSeconds));
 108 }
 109
 110 bool BrokerProcessDispatcher::OnMessageReceived(const IPC::Message& msg) {
 111   IPC_BEGIN_MESSAGE_MAP(BrokerProcessDispatcher, msg)
 112     IPC_MESSAGE_HANDLER(PpapiMsg_GetSitesWithData, OnGetSitesWithData)
 113     IPC_MESSAGE_HANDLER(PpapiMsg_ClearSiteData, OnClearSiteData)
 114     IPC_MESSAGE_HANDLER(PpapiMsg_DeauthorizeContentLicenses,
 115                         OnDeauthorizeContentLicenses)
 116     IPC_MESSAGE_HANDLER(PpapiMsg_GetPermissionSettings, OnGetPermissionSettings)
 117     IPC_MESSAGE_HANDLER(PpapiMsg_SetDefaultPermission, OnSetDefaultPermission)
 118     IPC_MESSAGE_HANDLER(PpapiMsg_SetSitePermission, OnSetSitePermission)
 119     IPC_MESSAGE_UNHANDLED(return BrokerSideDispatcher::OnMessageReceived(msg))
 120   IPC_END_MESSAGE_MAP()
 121   return true;
 122 }
 123
 124 void BrokerProcessDispatcher::OnGetPermissionSettingsCompleted(
 125     uint32 request_id,
 126     bool success,
 127     PP_Flash_BrowserOperations_Permission default_permission,
 128     const ppapi::FlashSiteSettings& sites) {
 129   Send(new PpapiHostMsg_GetPermissionSettingsResult(
 130       request_id, success, default_permission, sites));
 131 }
 132
 133 void BrokerProcessDispatcher::OnGetSitesWithData(
 134     uint32 request_id,
 135     const base::FilePath& plugin_data_path) {
 136   std::vector<std::string> sites;
 137   GetSitesWithData(plugin_data_path, &sites);
 138   Send(new PpapiHostMsg_GetSitesWithDataResult(request_id, sites));
 139 }
 140
 141 void BrokerProcessDispatcher::OnClearSiteData(
 142     uint32 request_id,
 143     const base::FilePath& plugin_data_path,
 144     const std::string& site,
 145     uint64 flags,
 146     uint64 max_age) {
 147   Send(new PpapiHostMsg_ClearSiteDataResult(
 148       request_id, ClearSiteData(plugin_data_path, site, flags, max_age)));
 149 }
 150
 151 void BrokerProcessDispatcher::OnDeauthorizeContentLicenses(
 152     uint32 request_id,
 153     const base::FilePath& plugin_data_path) {
 154   Send(new PpapiHostMsg_DeauthorizeContentLicensesResult(
 155       request_id, DeauthorizeContentLicenses(plugin_data_path)));
 156 }
 157
 158 void BrokerProcessDispatcher::OnGetPermissionSettings(
 159     uint32 request_id,
 160     const base::FilePath& plugin_data_path,
 161     PP_Flash_BrowserOperations_SettingType setting_type) {
 162   if (flash_browser_operations_1_3_) {
 163     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 164     // The GetPermissionSettingsContext object will be deleted in
 165     // GetPermissionSettingsCallback().
 166     flash_browser_operations_1_3_->GetPermissionSettings(
 167         data_str.c_str(), setting_type, &GetPermissionSettingsCallback,
 168         new GetPermissionSettingsContext(AsWeakPtr(), request_id));
 169     return;
 170   }
 171
 172   if (flash_browser_operations_1_2_) {
 173     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 174     // The GetPermissionSettingsContext object will be deleted in
 175     // GetPermissionSettingsCallback().
 176     flash_browser_operations_1_2_->GetPermissionSettings(
 177         data_str.c_str(), setting_type, &GetPermissionSettingsCallback,
 178         new GetPermissionSettingsContext(AsWeakPtr(), request_id));
 179     return;
 180   }
 181
 182   OnGetPermissionSettingsCompleted(
 183       request_id, false, PP_FLASH_BROWSEROPERATIONS_PERMISSION_DEFAULT,
 184       ppapi::FlashSiteSettings());
 185   return;
 186 }
 187
 188 void BrokerProcessDispatcher::OnSetDefaultPermission(
 189     uint32 request_id,
 190     const base::FilePath& plugin_data_path,
 191     PP_Flash_BrowserOperations_SettingType setting_type,
 192     PP_Flash_BrowserOperations_Permission permission,
 193     bool clear_site_specific) {
 194   Send(new PpapiHostMsg_SetDefaultPermissionResult(
 195       request_id,
 196       SetDefaultPermission(plugin_data_path, setting_type, permission,
 197                            clear_site_specific)));
 198 }
 199
 200 void BrokerProcessDispatcher::OnSetSitePermission(
 201     uint32 request_id,
 202     const base::FilePath& plugin_data_path,
 203     PP_Flash_BrowserOperations_SettingType setting_type,
 204     const ppapi::FlashSiteSettings& sites) {
 205   Send(new PpapiHostMsg_SetSitePermissionResult(
 206       request_id, SetSitePermission(plugin_data_path, setting_type, sites)));
 207 }
 208
 209 void BrokerProcessDispatcher::GetSitesWithData(
 210     const base::FilePath& plugin_data_path,
 211     std::vector<std::string>* site_vector) {
 212   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 213   if (flash_browser_operations_1_3_) {
 214     char** sites = NULL;
 215     flash_browser_operations_1_3_->GetSitesWithData(data_str.c_str(), &sites);
 216     if (!sites)
 217       return;
 218
 219     for (size_t i = 0; sites[i]; ++i)
 220       site_vector->push_back(sites[i]);
 221
 222     flash_browser_operations_1_3_->FreeSiteList(sites);
 223   }
 224 }
 225
 226 bool BrokerProcessDispatcher::ClearSiteData(
 227     const base::FilePath& plugin_data_path,
 228     const std::string& site,
 229     uint64 flags,
 230     uint64 max_age) {
 231   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 232   if (flash_browser_operations_1_3_) {
 233     flash_browser_operations_1_3_->ClearSiteData(
 234         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 235     return true;
 236   }
 237
 238   // TODO(viettrungluu): Remove this (and the 1.0 interface) sometime after M21
 239   // goes to Stable.
 240   if (flash_browser_operations_1_2_) {
 241     flash_browser_operations_1_2_->ClearSiteData(
 242         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 243     return true;
 244   }
 245
 246   if (flash_browser_operations_1_0_) {
 247     flash_browser_operations_1_0_->ClearSiteData(
 248         data_str.c_str(), site.empty() ? NULL : site.c_str(), flags, max_age);
 249     return true;
 250   }
 251
 252   return false;
 253 }
 254
 255 bool BrokerProcessDispatcher::DeauthorizeContentLicenses(
 256     const base::FilePath& plugin_data_path) {
 257   if (flash_browser_operations_1_3_) {
 258     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 259     return PP_ToBool(flash_browser_operations_1_3_->DeauthorizeContentLicenses(
 260         data_str.c_str()));
 261   }
 262
 263   if (flash_browser_operations_1_2_) {
 264     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 265     return PP_ToBool(flash_browser_operations_1_2_->DeauthorizeContentLicenses(
 266         data_str.c_str()));
 267   }
 268
 269   return false;
 270 }
 271
 272 bool BrokerProcessDispatcher::SetDefaultPermission(
 273     const base::FilePath& plugin_data_path,
 274     PP_Flash_BrowserOperations_SettingType setting_type,
 275     PP_Flash_BrowserOperations_Permission permission,
 276     bool clear_site_specific) {
 277   if (flash_browser_operations_1_3_) {
 278     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 279     return PP_ToBool(flash_browser_operations_1_3_->SetDefaultPermission(
 280         data_str.c_str(), setting_type, permission,
 281         PP_FromBool(clear_site_specific)));
 282   }
 283
 284   if (flash_browser_operations_1_2_) {
 285     std::string data_str = ConvertPluginDataPath(plugin_data_path);
 286     return PP_ToBool(flash_browser_operations_1_2_->SetDefaultPermission(
 287         data_str.c_str(), setting_type, permission,
 288         PP_FromBool(clear_site_specific)));
 289   }
 290
 291   return false;
 292 }
 293
 294 bool BrokerProcessDispatcher::SetSitePermission(
 295     const base::FilePath& plugin_data_path,
 296     PP_Flash_BrowserOperations_SettingType setting_type,
 297     const ppapi::FlashSiteSettings& sites) {
 298   if (sites.empty())
 299     return true;
 300
 301   std::string data_str = ConvertPluginDataPath(plugin_data_path);
 302   scoped_ptr<PP_Flash_BrowserOperations_SiteSetting[]> site_array(
 303       new PP_Flash_BrowserOperations_SiteSetting[sites.size()]);
 304
 305   for (size_t i = 0; i < sites.size(); ++i) {
 306     site_array[i].site = sites[i].site.c_str();
 307     site_array[i].permission = sites[i].permission;
 308   }
 309
 310   if (flash_browser_operations_1_3_) {
 311     PP_Bool result = flash_browser_operations_1_3_->SetSitePermission(
 312         data_str.c_str(), setting_type, sites.size(), site_array.get());
 313
 314     return PP_ToBool(result);
 315   }
 316
 317   if (flash_browser_operations_1_2_) {
 318     PP_Bool result = flash_browser_operations_1_2_->SetSitePermission(
 319         data_str.c_str(), setting_type, sites.size(), site_array.get());
 320
 321     return PP_ToBool(result);
 322   }
 323
 324   return false;
 325 }
 326
 327 }  // namespace content