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| 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/common/pepper_plugin_registry.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/native_library.h" | |
| 9 #include "base/strings/string_split.h" | |
| 10 #include "base/strings/string_util.h" | |
| 11 #include "base/strings/utf_string_conversions.h" | |
| 12 #include "content/public/common/content_client.h" | |
| 13 #include "content/public/common/content_switches.h" | |
| 14 #include "ppapi/shared_impl/ppapi_permissions.h" | |
| 15 | |
| 16 namespace content { | |
| 17 namespace { | |
| 18 | |
| 19 // Appends any plugins from the command line to the given vector. | |
| 20 void ComputePluginsFromCommandLine(std::vector<PepperPluginInfo>* plugins) { | |
| 21 bool out_of_process = true; | |
| 22 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kPpapiInProcess)) | |
| 23 out_of_process = false; | |
| 24 | |
| 25 const std::string value = | |
| 26 CommandLine::ForCurrentProcess()->GetSwitchValueASCII( | |
| 27 switches::kRegisterPepperPlugins); | |
| 28 if (value.empty()) | |
| 29 return; | |
| 30 | |
| 31 // FORMAT: | |
| 32 // command-line = <plugin-entry> + *( LWS + "," + LWS + <plugin-entry> ) | |
| 33 // plugin-entry = | |
| 34 // <file-path> + | |
| 35 // ["#" + <name> + ["#" + <description> + ["#" + <version>]]] + | |
| 36 // *1( LWS + ";" + LWS + <mime-type> ) | |
| 37 std::vector<std::string> modules; | |
| 38 base::SplitString(value, ',', &modules); | |
| 39 for (size_t i = 0; i < modules.size(); ++i) { | |
| 40 std::vector<std::string> parts; | |
| 41 base::SplitString(modules[i], ';', &parts); | |
| 42 if (parts.size() < 2) { | |
| 43 DLOG(ERROR) << "Required mime-type not found"; | |
| 44 continue; | |
| 45 } | |
| 46 | |
| 47 std::vector<std::string> name_parts; | |
| 48 base::SplitString(parts[0], '#', &name_parts); | |
| 49 | |
| 50 PepperPluginInfo plugin; | |
| 51 plugin.is_out_of_process = out_of_process; | |
| 52 #if defined(OS_WIN) | |
| 53 // This means we can't provide plugins from non-ASCII paths, but | |
| 54 // since this switch is only for development I don't think that's | |
| 55 // too awful. | |
| 56 plugin.path = base::FilePath(ASCIIToUTF16(name_parts[0])); | |
| 57 #else | |
| 58 plugin.path = base::FilePath(name_parts[0]); | |
| 59 #endif | |
| 60 if (name_parts.size() > 1) | |
| 61 plugin.name = name_parts[1]; | |
| 62 if (name_parts.size() > 2) | |
| 63 plugin.description = name_parts[2]; | |
| 64 if (name_parts.size() > 3) | |
| 65 plugin.version = name_parts[3]; | |
| 66 for (size_t j = 1; j < parts.size(); ++j) { | |
| 67 WebPluginMimeType mime_type(parts[j], | |
| 68 std::string(), | |
| 69 plugin.description); | |
| 70 plugin.mime_types.push_back(mime_type); | |
| 71 } | |
| 72 | |
| 73 // If the plugin name is empty, use the filename. | |
| 74 if (plugin.name.empty()) | |
| 75 plugin.name = UTF16ToUTF8(plugin.path.BaseName().LossyDisplayName()); | |
| 76 | |
| 77 // Command-line plugins get full permissions. | |
| 78 plugin.permissions = ppapi::PERMISSION_ALL_BITS; | |
| 79 | |
| 80 plugins->push_back(plugin); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 } // namespace | |
| 85 | |
| 86 bool MakePepperPluginInfo(const WebPluginInfo& webplugin_info, | |
| 87 PepperPluginInfo* pepper_info) { | |
| 88 if (!webplugin_info.is_pepper_plugin()) | |
| 89 return false; | |
| 90 | |
| 91 pepper_info->is_out_of_process = | |
| 92 webplugin_info.type == WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS || | |
| 93 webplugin_info.type == WebPluginInfo::PLUGIN_TYPE_PEPPER_UNSANDBOXED; | |
| 94 pepper_info->is_sandboxed = webplugin_info.type != | |
| 95 WebPluginInfo::PLUGIN_TYPE_PEPPER_UNSANDBOXED; | |
| 96 | |
| 97 pepper_info->path = base::FilePath(webplugin_info.path); | |
| 98 pepper_info->name = UTF16ToASCII(webplugin_info.name); | |
| 99 pepper_info->description = UTF16ToASCII(webplugin_info.desc); | |
| 100 pepper_info->version = UTF16ToASCII(webplugin_info.version); | |
| 101 pepper_info->mime_types = webplugin_info.mime_types; | |
| 102 pepper_info->permissions = webplugin_info.pepper_permissions; | |
| 103 | |
| 104 return true; | |
| 105 } | |
| 106 | |
| 107 // static | |
| 108 PepperPluginRegistry* PepperPluginRegistry::GetInstance() { | |
| 109 static PepperPluginRegistry* registry = NULL; | |
| 110 // This object leaks. It is a temporary hack to work around a crash. | |
| 111 // http://code.google.com/p/chromium/issues/detail?id=63234 | |
| 112 if (!registry) | |
| 113 registry = new PepperPluginRegistry; | |
| 114 return registry; | |
| 115 } | |
| 116 | |
| 117 // static | |
| 118 void PepperPluginRegistry::ComputeList(std::vector<PepperPluginInfo>* plugins) { | |
| 119 GetContentClient()->AddPepperPlugins(plugins); | |
| 120 ComputePluginsFromCommandLine(plugins); | |
| 121 } | |
| 122 | |
| 123 // static | |
| 124 void PepperPluginRegistry::PreloadModules() { | |
| 125 std::vector<PepperPluginInfo> plugins; | |
| 126 ComputeList(&plugins); | |
| 127 for (size_t i = 0; i < plugins.size(); ++i) { | |
| 128 if (!plugins[i].is_internal && plugins[i].is_sandboxed) { | |
| 129 std::string error; | |
| 130 base::NativeLibrary library = base::LoadNativeLibrary(plugins[i].path, | |
| 131 &error); | |
| 132 DLOG_IF(WARNING, !library) << "Unable to load plugin " | |
| 133 << plugins[i].path.value() << " " | |
| 134 << error; | |
| 135 (void)library; // Prevent release-mode warning. | |
| 136 } | |
| 137 } | |
| 138 } | |
| 139 | |
| 140 const PepperPluginInfo* PepperPluginRegistry::GetInfoForPlugin( | |
| 141 const WebPluginInfo& info) { | |
| 142 for (size_t i = 0; i < plugin_list_.size(); ++i) { | |
| 143 if (info.path == plugin_list_[i].path) | |
| 144 return &plugin_list_[i]; | |
| 145 } | |
| 146 // We did not find the plugin in our list. But wait! the plugin can also | |
| 147 // be a latecomer, as it happens with pepper flash. This information | |
| 148 // is actually in |info| and we can use it to construct it and add it to | |
| 149 // the list. This same deal needs to be done in the browser side in | |
| 150 // PluginService. | |
| 151 PepperPluginInfo plugin; | |
| 152 if (!MakePepperPluginInfo(info, &plugin)) | |
| 153 return NULL; | |
| 154 | |
| 155 plugin_list_.push_back(plugin); | |
| 156 return &plugin_list_[plugin_list_.size() - 1]; | |
| 157 } | |
| 158 | |
| 159 webkit::ppapi::PluginModule* PepperPluginRegistry::GetLiveModule( | |
| 160 const base::FilePath& path) { | |
| 161 NonOwningModuleMap::iterator it = live_modules_.find(path); | |
| 162 if (it == live_modules_.end()) | |
| 163 return NULL; | |
| 164 return it->second; | |
| 165 } | |
| 166 | |
| 167 void PepperPluginRegistry::AddLiveModule(const base::FilePath& path, | |
| 168 webkit::ppapi::PluginModule* module) { | |
| 169 DCHECK(live_modules_.find(path) == live_modules_.end()); | |
| 170 live_modules_[path] = module; | |
| 171 } | |
| 172 | |
| 173 void PepperPluginRegistry::PluginModuleDead( | |
| 174 webkit::ppapi::PluginModule* dead_module) { | |
| 175 // DANGER: Don't dereference the dead_module pointer! It may be in the | |
| 176 // process of being deleted. | |
| 177 | |
| 178 // Modules aren't destroyed very often and there are normally at most a | |
| 179 // couple of them. So for now we just do a brute-force search. | |
| 180 for (NonOwningModuleMap::iterator i = live_modules_.begin(); | |
| 181 i != live_modules_.end(); ++i) { | |
| 182 if (i->second == dead_module) { | |
| 183 live_modules_.erase(i); | |
| 184 return; | |
| 185 } | |
| 186 } | |
| 187 // Can occur in tests. | |
| 188 } | |
| 189 | |
| 190 PepperPluginRegistry::~PepperPluginRegistry() { | |
| 191 // Explicitly clear all preloaded modules first. This will cause callbacks | |
| 192 // to erase these modules from the live_modules_ list, and we don't want | |
| 193 // that to happen implicitly out-of-order. | |
| 194 preloaded_modules_.clear(); | |
| 195 | |
| 196 DCHECK(live_modules_.empty()); | |
| 197 } | |
| 198 | |
| 199 PepperPluginRegistry::PepperPluginRegistry() { | |
| 200 ComputeList(&plugin_list_); | |
| 201 | |
| 202 // Note that in each case, AddLiveModule must be called before completing | |
| 203 // initialization. If we bail out (in the continue clauses) before saving | |
| 204 // the initialized module, it will still try to unregister itself in its | |
| 205 // destructor. | |
| 206 for (size_t i = 0; i < plugin_list_.size(); i++) { | |
| 207 const PepperPluginInfo& current = plugin_list_[i]; | |
| 208 if (current.is_out_of_process) | |
| 209 continue; // Out of process plugins need no special pre-initialization. | |
| 210 | |
| 211 scoped_refptr<webkit::ppapi::PluginModule> module = | |
| 212 new webkit::ppapi::PluginModule(current.name, current.path, | |
| 213 ppapi::PpapiPermissions(current.permissions)); | |
| 214 AddLiveModule(current.path, module.get()); | |
| 215 if (current.is_internal) { | |
| 216 if (!module->InitAsInternalPlugin(current.internal_entry_points)) { | |
| 217 DLOG(ERROR) << "Failed to load pepper module: " << current.path.value(); | |
| 218 continue; | |
| 219 } | |
| 220 } else { | |
| 221 // Preload all external plugins we're not running out of process. | |
| 222 if (!module->InitAsLibrary(current.path)) { | |
| 223 DLOG(ERROR) << "Failed to load pepper module: " << current.path.value(); | |
| 224 continue; | |
| 225 } | |
| 226 } | |
| 227 preloaded_modules_[current.path] = module; | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 } // namespace content | |
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Chromium Code Reviews
Issue 20172004:
Split PepperPluginRegistry into the pieces that are needed in each process. content/common only nee… (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/