src/chrome/browser/extensions/startup_helper.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 "chrome/browser/extensions/startup_helper.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/command_line.h"
  10 #include "base/files/file_path.h"
  11 #include "base/message_loop/message_loop.h"
  12 #include "base/run_loop.h"
  13 #include "base/strings/string_util.h"
  14 #include "base/strings/stringprintf.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "chrome/browser/extensions/extension_service.h"
  17 #include "chrome/browser/extensions/sandboxed_unpacker.h"
  18 #include "chrome/browser/extensions/webstore_startup_installer.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/common/chrome_switches.h"
  21 #include "chrome/common/extensions/chrome_extensions_client.h"
  22 #include "components/crx_file/id_util.h"
  23 #include "content/public/browser/browser_thread.h"
  24 #include "content/public/browser/web_contents.h"
  25 #include "extensions/common/extension.h"
  26 #include "ipc/ipc_message.h"
  27
  28 #if defined(OS_WIN)
  29 #include "extensions/browser/app_window/app_window.h"
  30 #include "extensions/browser/app_window/app_window_registry.h"
  31 #include "extensions/browser/extension_registry.h"
  32 #include "extensions/browser/extension_util.h"
  33 #endif
  34
  35 using content::BrowserThread;
  36
  37 namespace extensions {
  38
  39 namespace {
  40
  41 void PrintPackExtensionMessage(const std::string& message) {
  42   VLOG(1) << message;
  43 }
  44
  45 // On Windows, the jumplist action for installing an ephemeral app has to use
  46 // the --install-ephemeral-app-from-webstore command line arg to initiate an
  47 // install.
  48 scoped_refptr<WebstoreStandaloneInstaller> CreateEphemeralAppInstaller(
  49     Profile* profile,
  50     const std::string& app_id,
  51     WebstoreStandaloneInstaller::Callback callback) {
  52   scoped_refptr<WebstoreStandaloneInstaller> installer;
  53
  54 #if defined(OS_WIN)
  55   ExtensionRegistry* registry = ExtensionRegistry::Get(profile);
  56   DCHECK(registry);
  57   if (!registry->GetExtensionById(app_id, ExtensionRegistry::EVERYTHING) ||
  58       !util::IsEphemeralApp(app_id, profile)) {
  59     return installer;
  60   }
  61
  62   AppWindowRegistry* app_window_registry = AppWindowRegistry::Get(profile);
  63   DCHECK(app_window_registry);
  64   AppWindow* app_window =
  65       app_window_registry->GetCurrentAppWindowForApp(app_id);
  66   if (!app_window)
  67     return installer;
  68
  69   installer = new WebstoreInstallWithPrompt(
  70       app_id, profile, app_window->GetNativeWindow(), callback);
  71 #endif
  72
  73   return installer;
  74 }
  75
  76 }  // namespace
  77
  78 StartupHelper::StartupHelper() : pack_job_succeeded_(false) {
  79   ExtensionsClient::Set(ChromeExtensionsClient::GetInstance());
  80 }
  81
  82 void StartupHelper::OnPackSuccess(
  83     const base::FilePath& crx_path,
  84     const base::FilePath& output_private_key_path) {
  85   pack_job_succeeded_ = true;
  86   PrintPackExtensionMessage(
  87       base::UTF16ToUTF8(
  88           PackExtensionJob::StandardSuccessMessage(crx_path,
  89                                                    output_private_key_path)));
  90 }
  91
  92 void StartupHelper::OnPackFailure(const std::string& error_message,
  93                                   ExtensionCreator::ErrorType type) {
  94   PrintPackExtensionMessage(error_message);
  95 }
  96
  97 bool StartupHelper::PackExtension(const CommandLine& cmd_line) {
  98   if (!cmd_line.HasSwitch(switches::kPackExtension))
  99     return false;
 100
 101   // Input Paths.
 102   base::FilePath src_dir =
 103       cmd_line.GetSwitchValuePath(switches::kPackExtension);
 104   base::FilePath private_key_path;
 105   if (cmd_line.HasSwitch(switches::kPackExtensionKey)) {
 106     private_key_path = cmd_line.GetSwitchValuePath(switches::kPackExtensionKey);
 107   }
 108
 109   // Launch a job to perform the packing on the file thread.  Ignore warnings
 110   // from the packing process. (e.g. Overwrite any existing crx file.)
 111   pack_job_ = new PackExtensionJob(this, src_dir, private_key_path,
 112                                    ExtensionCreator::kOverwriteCRX);
 113   pack_job_->set_asynchronous(false);
 114   pack_job_->Start();
 115
 116   return pack_job_succeeded_;
 117 }
 118
 119 namespace {
 120
 121 class ValidateCrxHelper : public SandboxedUnpackerClient {
 122  public:
 123   ValidateCrxHelper(const base::FilePath& crx_file,
 124                     const base::FilePath& temp_dir,
 125                     base::RunLoop* run_loop)
 126       : crx_file_(crx_file), temp_dir_(temp_dir), run_loop_(run_loop),
 127         finished_(false), success_(false) {}
 128
 129   bool finished() { return finished_; }
 130   bool success() { return success_; }
 131   const base::string16& error() { return error_; }
 132
 133   void Start() {
 134     BrowserThread::PostTask(BrowserThread::FILE,
 135                             FROM_HERE,
 136                             base::Bind(&ValidateCrxHelper::StartOnFileThread,
 137                                        this));
 138   }
 139
 140  protected:
 141   virtual ~ValidateCrxHelper() {}
 142
 143   virtual void OnUnpackSuccess(const base::FilePath& temp_dir,
 144                                const base::FilePath& extension_root,
 145                                const base::DictionaryValue* original_manifest,
 146                                const Extension* extension,
 147                                const SkBitmap& install_icon) OVERRIDE {
 148     finished_ = true;
 149     success_ = true;
 150     BrowserThread::PostTask(BrowserThread::UI,
 151                             FROM_HERE,
 152                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
 153                                        this));
 154   }
 155
 156   virtual void OnUnpackFailure(const base::string16& error) OVERRIDE {
 157     finished_ = true;
 158     success_ = false;
 159     error_ = error;
 160     BrowserThread::PostTask(BrowserThread::UI,
 161                             FROM_HERE,
 162                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
 163                                        this));
 164   }
 165
 166   void FinishOnUIThread() {
 167     CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 168     if (run_loop_->running())
 169       run_loop_->Quit();
 170   }
 171
 172   void StartOnFileThread() {
 173     CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 174     scoped_refptr<base::MessageLoopProxy> file_thread_proxy =
 175         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
 176
 177     scoped_refptr<SandboxedUnpacker> unpacker(
 178         new SandboxedUnpacker(crx_file_,
 179                               Manifest::INTERNAL,
 180                               0, /* no special creation flags */
 181                               temp_dir_,
 182                               file_thread_proxy.get(),
 183                               this));
 184     unpacker->Start();
 185   }
 186
 187   // The file being validated.
 188   const base::FilePath& crx_file_;
 189
 190   // The temporary directory where the sandboxed unpacker will do work.
 191   const base::FilePath& temp_dir_;
 192
 193   // Unowned pointer to a runloop, so our consumer can wait for us to finish.
 194   base::RunLoop* run_loop_;
 195
 196   // Whether we're finished unpacking;
 197   bool finished_;
 198
 199   // Whether the unpacking was successful.
 200   bool success_;
 201
 202   // If the unpacking wasn't successful, this contains an error message.
 203   base::string16 error_;
 204 };
 205
 206 }  // namespace
 207
 208 bool StartupHelper::ValidateCrx(const CommandLine& cmd_line,
 209                                 std::string* error) {
 210   CHECK(error);
 211   base::FilePath path = cmd_line.GetSwitchValuePath(switches::kValidateCrx);
 212   if (path.empty()) {
 213     *error = base::StringPrintf("Empty path passed for %s",
 214                                 switches::kValidateCrx);
 215     return false;
 216   }
 217   base::ScopedTempDir temp_dir;
 218
 219   if (!temp_dir.CreateUniqueTempDir()) {
 220     *error = std::string("Failed to create temp dir");
 221     return false;
 222   }
 223
 224   base::RunLoop run_loop;
 225   scoped_refptr<ValidateCrxHelper> helper(
 226       new ValidateCrxHelper(path, temp_dir.path(), &run_loop));
 227   helper->Start();
 228   if (!helper->finished())
 229     run_loop.Run();
 230
 231   bool success = helper->success();
 232   if (!success)
 233     *error = base::UTF16ToUTF8(helper->error());
 234   return success;
 235 }
 236
 237 namespace {
 238
 239 class AppInstallHelper {
 240  public:
 241   // A callback for when the install process is done.
 242   typedef base::Callback<void()> DoneCallback;
 243
 244   AppInstallHelper();
 245   virtual ~AppInstallHelper();
 246   bool success() { return success_; }
 247   const std::string& error() { return error_; }
 248   void BeginInstall(Profile* profile,
 249                     const std::string& id,
 250                     bool show_prompt,
 251                     DoneCallback callback);
 252
 253  private:
 254   WebstoreStandaloneInstaller::Callback Callback();
 255   void OnAppInstallComplete(bool success,
 256                             const std::string& error,
 257                             webstore_install::Result result);
 258
 259   DoneCallback done_callback_;
 260
 261   // These hold on to the result of the app install when it is complete.
 262   bool success_;
 263   std::string error_;
 264
 265   scoped_refptr<WebstoreStandaloneInstaller> installer_;
 266 };
 267
 268 AppInstallHelper::AppInstallHelper() : success_(false) {}
 269
 270 AppInstallHelper::~AppInstallHelper() {}
 271
 272 WebstoreStandaloneInstaller::Callback AppInstallHelper::Callback() {
 273   return base::Bind(&AppInstallHelper::OnAppInstallComplete,
 274                     base::Unretained(this));
 275 }
 276
 277 void AppInstallHelper::BeginInstall(
 278     Profile* profile,
 279     const std::string& id,
 280     bool show_prompt,
 281     DoneCallback done_callback) {
 282   done_callback_ = done_callback;
 283
 284   WebstoreStandaloneInstaller::Callback callback =
 285       base::Bind(&AppInstallHelper::OnAppInstallComplete,
 286                  base::Unretained(this));
 287
 288   installer_ = CreateEphemeralAppInstaller(profile, id, callback);
 289   if (installer_.get()) {
 290     installer_->BeginInstall();
 291   } else {
 292     error_ = "Not a supported ephemeral app installation.";
 293     done_callback_.Run();
 294   }
 295 }
 296
 297 void AppInstallHelper::OnAppInstallComplete(bool success,
 298                                             const std::string& error,
 299                                             webstore_install::Result result) {
 300   success_ = success;
 301   error_= error;
 302   done_callback_.Run();
 303 }
 304
 305 }  // namespace
 306
 307 bool StartupHelper::InstallEphemeralApp(const CommandLine& cmd_line,
 308                                         Profile* profile) {
 309   std::string id =
 310       cmd_line.GetSwitchValueASCII(switches::kInstallEphemeralAppFromWebstore);
 311   if (!crx_file::id_util::IdIsValid(id)) {
 312     LOG(ERROR) << "Invalid id for "
 313         << switches::kInstallEphemeralAppFromWebstore << " : '" << id << "'";
 314     return false;
 315   }
 316
 317   AppInstallHelper helper;
 318   base::RunLoop run_loop;
 319   helper.BeginInstall(profile, id, true, run_loop.QuitClosure());
 320   run_loop.Run();
 321
 322   if (!helper.success())
 323     LOG(ERROR) << "InstallFromWebstore failed with error: " << helper.error();
 324   return helper.success();
 325 }
 326
 327 StartupHelper::~StartupHelper() {
 328   if (pack_job_.get())
 329     pack_job_->ClearClient();
 330 }
 331
 332 }  // namespace extensions