chrome/browser/extensions/bundle_installer.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/bundle_installer.h"
   6
   7 #include <algorithm>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/command_line.h"
  12 #include "base/i18n/rtl.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "base/values.h"
  15 #include "chrome/browser/extensions/crx_installer.h"
  16 #include "chrome/browser/extensions/permissions_updater.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/ui/browser.h"
  19 #include "chrome/browser/ui/browser_finder.h"
  20 #include "chrome/browser/ui/browser_list.h"
  21 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  22 #include "chrome/common/chrome_switches.h"
  23 #include "chrome/grit/generated_resources.h"
  24 #include "content/public/browser/web_contents.h"
  25 #include "extensions/common/extension.h"
  26 #include "extensions/common/permissions/permission_set.h"
  27 #include "extensions/common/permissions/permissions_data.h"
  28 #include "ui/base/l10n/l10n_util.h"
  29 #include "ui/gfx/image/image_skia.h"
  30
  31 namespace extensions {
  32
  33 namespace {
  34
  35 enum AutoApproveForTest {
  36   DO_NOT_SKIP = 0,
  37   PROCEED,
  38   ABORT
  39 };
  40
  41 AutoApproveForTest g_auto_approve_for_test = DO_NOT_SKIP;
  42
  43 scoped_refptr<Extension> CreateDummyExtension(
  44     const BundleInstaller::Item& item,
  45     const base::DictionaryValue& manifest,
  46     content::BrowserContext* browser_context) {
  47   // We require localized names so we can have nice error messages when we can't
  48   // parse an extension manifest.
  49   CHECK(!item.localized_name.empty());
  50
  51   std::string error;
  52   scoped_refptr<Extension> extension = Extension::Create(base::FilePath(),
  53                                                          Manifest::INTERNAL,
  54                                                          manifest,
  55                                                          Extension::NO_FLAGS,
  56                                                          item.id,
  57                                                          &error);
  58   // Initialize permissions so that withheld permissions are displayed properly
  59   // in the install prompt.
  60   PermissionsUpdater(browser_context, PermissionsUpdater::INIT_FLAG_TRANSIENT)
  61       .InitializePermissions(extension.get());
  62   return extension;
  63 }
  64
  65 // Holds the message IDs for BundleInstaller::GetHeadingTextFor.
  66 const int kHeadingIds[3][4] = {
  67   {
  68     0,
  69     IDS_EXTENSION_BUNDLE_INSTALL_PROMPT_HEADING_EXTENSIONS,
  70     IDS_EXTENSION_BUNDLE_INSTALL_PROMPT_HEADING_APPS,
  71     IDS_EXTENSION_BUNDLE_INSTALL_PROMPT_HEADING_EXTENSION_APPS
  72   },
  73   {
  74     0,
  75     IDS_EXTENSION_BUNDLE_INSTALLED_HEADING_EXTENSIONS,
  76     IDS_EXTENSION_BUNDLE_INSTALLED_HEADING_APPS,
  77     IDS_EXTENSION_BUNDLE_INSTALLED_HEADING_EXTENSION_APPS
  78   }
  79 };
  80
  81 }  // namespace
  82
  83 // static
  84 void BundleInstaller::SetAutoApproveForTesting(bool auto_approve) {
  85   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType));
  86   g_auto_approve_for_test = auto_approve ? PROCEED : ABORT;
  87 }
  88
  89 BundleInstaller::Item::Item() : state(STATE_PENDING) {}
  90
  91 BundleInstaller::Item::~Item() {}
  92
  93 base::string16 BundleInstaller::Item::GetNameForDisplay() const {
  94   base::string16 name = base::UTF8ToUTF16(localized_name);
  95   base::i18n::AdjustStringForLocaleDirection(&name);
  96   return l10n_util::GetStringFUTF16(IDS_EXTENSION_PERMISSION_LINE, name);
  97 }
  98
  99 BundleInstaller::BundleInstaller(Browser* browser,
 100                                  const std::string& name,
 101                                  const SkBitmap& icon,
 102                                  const std::string& authuser,
 103                                  const BundleInstaller::ItemList& items)
 104     : approved_(false),
 105       browser_(browser),
 106       name_(name),
 107       icon_(icon),
 108       authuser_(authuser),
 109       host_desktop_type_(browser->host_desktop_type()),
 110       profile_(browser->profile()) {
 111   BrowserList::AddObserver(this);
 112   for (size_t i = 0; i < items.size(); ++i) {
 113     items_[items[i].id] = items[i];
 114     items_[items[i].id].state = Item::STATE_PENDING;
 115   }
 116 }
 117
 118 BundleInstaller::~BundleInstaller() {
 119   BrowserList::RemoveObserver(this);
 120 }
 121
 122 BundleInstaller::ItemList BundleInstaller::GetItemsWithState(
 123     Item::State state) const {
 124   ItemList list;
 125
 126   for (const std::pair<std::string, Item>& entry : items_) {
 127     if (entry.second.state == state)
 128       list.push_back(entry.second);
 129   }
 130
 131   return list;
 132 }
 133
 134 bool BundleInstaller::HasItemWithState(Item::State state) const {
 135   return CountItemsWithState(state) > 0;
 136 }
 137
 138 size_t BundleInstaller::CountItemsWithState(Item::State state) const {
 139   return std::count_if(items_.begin(), items_.end(),
 140                        [state] (const std::pair<std::string, Item>& entry) {
 141                          return entry.second.state == state;
 142                        });
 143 }
 144
 145 void BundleInstaller::PromptForApproval(const ApprovalCallback& callback) {
 146   approval_callback_ = callback;
 147
 148   ParseManifests();
 149 }
 150
 151 void BundleInstaller::CompleteInstall(content::WebContents* web_contents,
 152                                       const base::Closure& callback) {
 153   DCHECK(web_contents);
 154   CHECK(approved_);
 155
 156   install_callback_ = callback;
 157
 158   if (!HasItemWithState(Item::STATE_PENDING)) {
 159     install_callback_.Run();
 160     return;
 161   }
 162
 163   // Start each WebstoreInstaller.
 164   for (const std::pair<std::string, Item>& entry : items_) {
 165     if (entry.second.state != Item::STATE_PENDING)
 166       continue;
 167
 168     // Since we've already confirmed the permissions, create an approval that
 169     // lets CrxInstaller bypass the prompt.
 170     scoped_ptr<WebstoreInstaller::Approval> approval(
 171         WebstoreInstaller::Approval::CreateWithNoInstallPrompt(
 172             profile_,
 173             entry.first,
 174             make_scoped_ptr(parsed_manifests_[entry.first]->DeepCopy()),
 175             true));
 176     approval->use_app_installed_bubble = false;
 177     approval->skip_post_install_ui = true;
 178     approval->authuser = authuser_;
 179     approval->installing_icon =
 180         gfx::ImageSkia::CreateFrom1xBitmap(entry.second.icon);
 181
 182     scoped_refptr<WebstoreInstaller> installer = new WebstoreInstaller(
 183         profile_,
 184         this,
 185         web_contents,
 186         entry.first,
 187         approval.Pass(),
 188         WebstoreInstaller::INSTALL_SOURCE_OTHER);
 189     installer->Start();
 190   }
 191 }
 192
 193 base::string16 BundleInstaller::GetHeadingTextFor(Item::State state) const {
 194   // For STATE_FAILED, we can't tell if the items were apps or extensions
 195   // so we always show the same message.
 196   if (state == Item::STATE_FAILED) {
 197     if (HasItemWithState(state))
 198       return l10n_util::GetStringUTF16(IDS_EXTENSION_BUNDLE_ERROR_HEADING);
 199     return base::string16();
 200   }
 201
 202   size_t total = CountItemsWithState(state);
 203   size_t apps = std::count_if(
 204       dummy_extensions_.begin(), dummy_extensions_.end(),
 205       [] (const scoped_refptr<const Extension>& ext) { return ext->is_app(); });
 206
 207   bool has_apps = apps > 0;
 208   bool has_extensions = apps < total;
 209   size_t index = (has_extensions << 0) + (has_apps << 1);
 210
 211   CHECK_LT(static_cast<size_t>(state), arraysize(kHeadingIds));
 212   CHECK_LT(index, arraysize(kHeadingIds[state]));
 213
 214   int msg_id = kHeadingIds[state][index];
 215   if (!msg_id)
 216     return base::string16();
 217
 218   // Only the "pending" message (in the confirmation prompt) contains the
 219   // bundle name.
 220   if (state == Item::STATE_PENDING)
 221     return l10n_util::GetStringFUTF16(msg_id, base::UTF8ToUTF16(name_));
 222
 223   return l10n_util::GetStringUTF16(msg_id);
 224 }
 225
 226 void BundleInstaller::ParseManifests() {
 227   if (items_.empty()) {
 228     approval_callback_.Run(APPROVAL_ERROR);
 229     return;
 230   }
 231
 232   net::URLRequestContextGetter* context_getter =
 233       browser_ ? browser_->profile()->GetRequestContext() : nullptr;
 234
 235   for (const std::pair<std::string, Item>& entry : items_) {
 236     scoped_refptr<WebstoreInstallHelper> helper = new WebstoreInstallHelper(
 237         this, entry.first, entry.second.manifest, entry.second.icon_url,
 238         context_getter);
 239     helper->Start();
 240   }
 241 }
 242
 243 void BundleInstaller::ShowPromptIfDoneParsing() {
 244   // We don't prompt until all the manifests have been parsed.
 245   if (CountItemsWithState(Item::STATE_PENDING) != dummy_extensions_.size())
 246     return;
 247
 248   ShowPrompt();
 249 }
 250
 251 void BundleInstaller::ShowPrompt() {
 252   // Abort if we couldn't create any Extensions out of the manifests.
 253   if (dummy_extensions_.empty()) {
 254     approval_callback_.Run(APPROVAL_ERROR);
 255     return;
 256   }
 257
 258   scoped_refptr<PermissionSet> permissions;
 259   for (size_t i = 0; i < dummy_extensions_.size(); ++i) {
 260     permissions = PermissionSet::CreateUnion(
 261         permissions.get(),
 262         dummy_extensions_[i]->permissions_data()->active_permissions().get());
 263   }
 264
 265   if (g_auto_approve_for_test == PROCEED) {
 266     InstallUIProceed();
 267   } else if (g_auto_approve_for_test == ABORT) {
 268     InstallUIAbort(true);
 269   } else {
 270     Browser* browser = browser_;
 271     if (!browser) {
 272       // The browser that we got initially could have gone away during our
 273       // thread hopping.
 274       browser = chrome::FindLastActiveWithProfile(profile_, host_desktop_type_);
 275     }
 276     content::WebContents* web_contents = NULL;
 277     if (browser)
 278       web_contents = browser->tab_strip_model()->GetActiveWebContents();
 279     install_ui_.reset(new ExtensionInstallPrompt(web_contents));
 280     install_ui_->ConfirmBundleInstall(this, permissions.get());
 281   }
 282 }
 283
 284 void BundleInstaller::ShowInstalledBubbleIfDone() {
 285   // We're ready to show the installed bubble when no items are pending.
 286   if (HasItemWithState(Item::STATE_PENDING))
 287     return;
 288
 289   if (browser_)
 290     ShowInstalledBubble(this, browser_);
 291
 292   install_callback_.Run();
 293 }
 294
 295 void BundleInstaller::OnWebstoreParseSuccess(
 296     const std::string& id,
 297     const SkBitmap& icon,
 298     base::DictionaryValue* manifest) {
 299   items_[id].icon = icon;
 300   dummy_extensions_.push_back(
 301       CreateDummyExtension(items_[id], *manifest, profile_));
 302   parsed_manifests_[id] = linked_ptr<base::DictionaryValue>(manifest);
 303
 304   ShowPromptIfDoneParsing();
 305 }
 306
 307 void BundleInstaller::OnWebstoreParseFailure(
 308     const std::string& id,
 309     WebstoreInstallHelper::Delegate::InstallHelperResultCode result_code,
 310     const std::string& error_message) {
 311   items_[id].state = Item::STATE_FAILED;
 312
 313   ShowPromptIfDoneParsing();
 314 }
 315
 316 void BundleInstaller::InstallUIProceed() {
 317   approved_ = true;
 318   approval_callback_.Run(APPROVED);
 319 }
 320
 321 void BundleInstaller::InstallUIAbort(bool user_initiated) {
 322   for (std::pair<const std::string, Item>& entry : items_)
 323     entry.second.state = Item::STATE_FAILED;
 324
 325   approval_callback_.Run(user_initiated ? USER_CANCELED : APPROVAL_ERROR);
 326 }
 327
 328 void BundleInstaller::OnExtensionInstallSuccess(const std::string& id) {
 329   items_[id].state = Item::STATE_INSTALLED;
 330
 331   ShowInstalledBubbleIfDone();
 332 }
 333
 334 void BundleInstaller::OnExtensionInstallFailure(
 335     const std::string& id,
 336     const std::string& error,
 337     WebstoreInstaller::FailureReason reason) {
 338   items_[id].state = Item::STATE_FAILED;
 339
 340   ExtensionList::iterator i = std::find_if(
 341       dummy_extensions_.begin(), dummy_extensions_.end(),
 342       [&id] (const scoped_refptr<const Extension>& ext) {
 343         return ext->id() == id;
 344       });
 345   CHECK(dummy_extensions_.end() != i);
 346   dummy_extensions_.erase(i);
 347
 348   ShowInstalledBubbleIfDone();
 349 }
 350
 351 void BundleInstaller::OnBrowserRemoved(Browser* browser) {
 352   if (browser_ == browser)
 353     browser_ = nullptr;
 354 }
 355
 356 }  // namespace extensions