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 "content/public/browser/browser_thread.h"
  23 #include "content/public/browser/web_contents.h"
  24 #include "extensions/common/extension.h"
  25 #include "ipc/ipc_message.h"
  26
  27 using content::BrowserThread;
  28
  29 namespace {
  30
  31 void PrintPackExtensionMessage(const std::string& message) {
  32   printf("%s\n", message.c_str());
  33 }
  34
  35 }  // namespace
  36
  37 namespace extensions {
  38
  39 StartupHelper::StartupHelper() : pack_job_succeeded_(false) {
  40   ExtensionsClient::Set(ChromeExtensionsClient::GetInstance());
  41 }
  42
  43 void StartupHelper::OnPackSuccess(
  44     const base::FilePath& crx_path,
  45     const base::FilePath& output_private_key_path) {
  46   pack_job_succeeded_ = true;
  47   PrintPackExtensionMessage(
  48       base::UTF16ToUTF8(
  49           PackExtensionJob::StandardSuccessMessage(crx_path,
  50                                                    output_private_key_path)));
  51 }
  52
  53 void StartupHelper::OnPackFailure(const std::string& error_message,
  54                                   ExtensionCreator::ErrorType type) {
  55   PrintPackExtensionMessage(error_message);
  56 }
  57
  58 bool StartupHelper::PackExtension(const CommandLine& cmd_line) {
  59   if (!cmd_line.HasSwitch(switches::kPackExtension))
  60     return false;
  61
  62   // Input Paths.
  63   base::FilePath src_dir =
  64       cmd_line.GetSwitchValuePath(switches::kPackExtension);
  65   base::FilePath private_key_path;
  66   if (cmd_line.HasSwitch(switches::kPackExtensionKey)) {
  67     private_key_path = cmd_line.GetSwitchValuePath(switches::kPackExtensionKey);
  68   }
  69
  70   // Launch a job to perform the packing on the file thread.  Ignore warnings
  71   // from the packing process. (e.g. Overwrite any existing crx file.)
  72   pack_job_ = new PackExtensionJob(this, src_dir, private_key_path,
  73                                    ExtensionCreator::kOverwriteCRX);
  74   pack_job_->set_asynchronous(false);
  75   pack_job_->Start();
  76
  77   return pack_job_succeeded_;
  78 }
  79
  80 namespace {
  81
  82 class ValidateCrxHelper : public SandboxedUnpackerClient {
  83  public:
  84   ValidateCrxHelper(const base::FilePath& crx_file,
  85                     const base::FilePath& temp_dir,
  86                     base::RunLoop* run_loop)
  87       : crx_file_(crx_file), temp_dir_(temp_dir), run_loop_(run_loop),
  88         finished_(false), success_(false) {}
  89
  90   bool finished() { return finished_; }
  91   bool success() { return success_; }
  92   const base::string16& error() { return error_; }
  93
  94   void Start() {
  95     BrowserThread::PostTask(BrowserThread::FILE,
  96                             FROM_HERE,
  97                             base::Bind(&ValidateCrxHelper::StartOnFileThread,
  98                                        this));
  99   }
 100
 101  protected:
 102   virtual ~ValidateCrxHelper() {}
 103
 104   virtual void OnUnpackSuccess(const base::FilePath& temp_dir,
 105                                const base::FilePath& extension_root,
 106                                const base::DictionaryValue* original_manifest,
 107                                const Extension* extension,
 108                                const SkBitmap& install_icon) OVERRIDE {
 109     finished_ = true;
 110     success_ = true;
 111     BrowserThread::PostTask(BrowserThread::UI,
 112                             FROM_HERE,
 113                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
 114                                        this));
 115   }
 116
 117   virtual void OnUnpackFailure(const base::string16& error) OVERRIDE {
 118     finished_ = true;
 119     success_ = false;
 120     error_ = error;
 121     BrowserThread::PostTask(BrowserThread::UI,
 122                             FROM_HERE,
 123                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
 124                                        this));
 125   }
 126
 127   void FinishOnUIThread() {
 128     CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 129     if (run_loop_->running())
 130       run_loop_->Quit();
 131   }
 132
 133   void StartOnFileThread() {
 134     CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 135     scoped_refptr<base::MessageLoopProxy> file_thread_proxy =
 136         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
 137
 138     scoped_refptr<SandboxedUnpacker> unpacker(
 139         new SandboxedUnpacker(crx_file_,
 140                               Manifest::INTERNAL,
 141                               0, /* no special creation flags */
 142                               temp_dir_,
 143                               file_thread_proxy.get(),
 144                               this));
 145     unpacker->Start();
 146   }
 147
 148   // The file being validated.
 149   const base::FilePath& crx_file_;
 150
 151   // The temporary directory where the sandboxed unpacker will do work.
 152   const base::FilePath& temp_dir_;
 153
 154   // Unowned pointer to a runloop, so our consumer can wait for us to finish.
 155   base::RunLoop* run_loop_;
 156
 157   // Whether we're finished unpacking;
 158   bool finished_;
 159
 160   // Whether the unpacking was successful.
 161   bool success_;
 162
 163   // If the unpacking wasn't successful, this contains an error message.
 164   base::string16 error_;
 165 };
 166
 167 }  // namespace
 168
 169 bool StartupHelper::ValidateCrx(const CommandLine& cmd_line,
 170                                 std::string* error) {
 171   CHECK(error);
 172   base::FilePath path = cmd_line.GetSwitchValuePath(switches::kValidateCrx);
 173   if (path.empty()) {
 174     *error = base::StringPrintf("Empty path passed for %s",
 175                                 switches::kValidateCrx);
 176     return false;
 177   }
 178   base::ScopedTempDir temp_dir;
 179
 180   if (!temp_dir.CreateUniqueTempDir()) {
 181     *error = std::string("Failed to create temp dir");
 182     return false;
 183   }
 184
 185   base::RunLoop run_loop;
 186   scoped_refptr<ValidateCrxHelper> helper(
 187       new ValidateCrxHelper(path, temp_dir.path(), &run_loop));
 188   helper->Start();
 189   if (!helper->finished())
 190     run_loop.Run();
 191
 192   bool success = helper->success();
 193   if (!success)
 194     *error = base::UTF16ToUTF8(helper->error());
 195   return success;
 196 }
 197
 198 namespace {
 199
 200 class AppInstallHelper {
 201  public:
 202   // A callback for when the install process is done.
 203   typedef base::Callback<void()> DoneCallback;
 204
 205   AppInstallHelper();
 206   virtual ~AppInstallHelper();
 207   bool success() { return success_; }
 208   const std::string& error() { return error_; }
 209   void BeginInstall(Profile* profile,
 210                     const std::string& id,
 211                     bool show_prompt,
 212                     DoneCallback callback);
 213
 214  private:
 215   WebstoreStandaloneInstaller::Callback Callback();
 216   void OnAppInstallComplete(bool success, const std::string& error);
 217
 218   DoneCallback done_callback_;
 219
 220   // These hold on to the result of the app install when it is complete.
 221   bool success_;
 222   std::string error_;
 223
 224   scoped_refptr<WebstoreStandaloneInstaller> installer_;
 225 };
 226
 227 AppInstallHelper::AppInstallHelper() : success_(false) {}
 228
 229 AppInstallHelper::~AppInstallHelper() {}
 230
 231 WebstoreStandaloneInstaller::Callback AppInstallHelper::Callback() {
 232   return base::Bind(&AppInstallHelper::OnAppInstallComplete,
 233                     base::Unretained(this));
 234 }
 235
 236 void AppInstallHelper::BeginInstall(
 237     Profile* profile,
 238     const std::string& id,
 239     bool show_prompt,
 240     DoneCallback done_callback) {
 241   done_callback_ = done_callback;
 242
 243   WebstoreStandaloneInstaller::Callback callback =
 244       base::Bind(&AppInstallHelper::OnAppInstallComplete,
 245                  base::Unretained(this));
 246   installer_ = new WebstoreStartupInstaller(
 247       id,
 248       profile,
 249       show_prompt,
 250       callback);
 251   installer_->BeginInstall();
 252 }
 253
 254 void AppInstallHelper::OnAppInstallComplete(bool success,
 255                                             const std::string& error) {
 256   success_ = success;
 257   error_= error;
 258   done_callback_.Run();
 259 }
 260
 261 void DeleteHelperAndRunCallback(AppInstallHelper* helper,
 262                                 base::Callback<void()> callback) {
 263   delete helper;
 264   callback.Run();
 265 }
 266
 267 }  // namespace
 268
 269 bool StartupHelper::InstallFromWebstore(const CommandLine& cmd_line,
 270                                         Profile* profile) {
 271   std::string id = cmd_line.GetSwitchValueASCII(switches::kInstallFromWebstore);
 272   if (!Extension::IdIsValid(id)) {
 273     LOG(ERROR) << "Invalid id for " << switches::kInstallFromWebstore
 274                << " : '" << id << "'";
 275     return false;
 276   }
 277
 278   AppInstallHelper helper;
 279   base::RunLoop run_loop;
 280   helper.BeginInstall(profile, id, true, run_loop.QuitClosure());
 281   run_loop.Run();
 282
 283   if (!helper.success())
 284     LOG(ERROR) << "InstallFromWebstore failed with error: " << helper.error();
 285   return helper.success();
 286 }
 287
 288 void StartupHelper::LimitedInstallFromWebstore(
 289     const CommandLine& cmd_line,
 290     Profile* profile,
 291     base::Callback<void()> done_callback) {
 292   std::string id = WebStoreIdFromLimitedInstallCmdLine(cmd_line);
 293   if (!Extension::IdIsValid(id)) {
 294     LOG(ERROR) << "Invalid index for " << switches::kLimitedInstallFromWebstore;
 295     done_callback.Run();
 296     return;
 297   }
 298
 299   AppInstallHelper* helper = new AppInstallHelper();
 300   helper->BeginInstall(profile, id, false /*show_prompt*/,
 301                        base::Bind(&DeleteHelperAndRunCallback,
 302                                   helper, done_callback));
 303 }
 304
 305 std::string StartupHelper::WebStoreIdFromLimitedInstallCmdLine(
 306     const CommandLine& cmd_line) {
 307   std::string index = cmd_line.GetSwitchValueASCII(
 308       switches::kLimitedInstallFromWebstore);
 309   std::string id;
 310   if (index == "1") {
 311     id = "nckgahadagoaajjgafhacjanaoiihapd";
 312   } else if (index == "2") {
 313     id = "ecglahbcnmdpdciemllbhojghbkagdje";
 314   }
 315   return id;
 316 }
 317
 318 StartupHelper::~StartupHelper() {
 319   if (pack_job_.get())
 320     pack_job_->ClearClient();
 321 }
 322
 323 }  // namespace extensions