Add a webstore API for installing bundles of extensions.

chrome/browser/extensions/bundle_installer.cc

Index: chrome/browser/extensions/bundle_installer.cc
diff --git a/chrome/browser/extensions/bundle_installer.cc b/chrome/browser/extensions/bundle_installer.cc
new file mode 100644
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+++ b/chrome/browser/extensions/bundle_installer.cc
@@ -0,0 +1,279 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/extensions/bundle_installer.h"
+
+#include <string>
+#include <vector>
+
+#include "base/command_line.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/crx_installer.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/common/chrome_switches.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/navigation_controller.h"
+#include "content/public/browser/web_contents.h"
+
+using content::NavigationController;
+
+namespace extensions {
+
+namespace {
+
+enum AutoApproveForTest {
+  DO_NOT_SKIP = 0,
+  PROCEED,
+  ABORT
+};
+
+AutoApproveForTest g_auto_approve_for_test = DO_NOT_SKIP;
+
+// Creates a dummy extension and sets the manifest's name to the item's
+// localized name.
+scoped_refptr<Extension> CreateDummyExtension(BundleInstaller::Item item,
+                                              DictionaryValue* manifest) {
+  // We require localized names so we can have nice error messages when we can't
+  // parse an extension manifest.
+  CHECK(!item.localized_name.empty());
+
+  manifest->SetString(extension_manifest_keys::kName, item.localized_name);
+
+  std::string error;
+  return Extension::Create(FilePath(),
+                           Extension::INTERNAL,
+                           *manifest,
+                           Extension::NO_FLAGS,
+                           item.id,
+                           &error);
+}
+
+}  // namespace
+
+// static
+void BundleInstaller::SetAutoApproveForTesting(bool auto_approve) {
+  CHECK(CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType));
+  g_auto_approve_for_test = auto_approve ? PROCEED : ABORT;
+}
+
+BundleInstaller::Item::Item() : state(STATE_PENDING) {}
+
+BundleInstaller::BundleInstaller(Profile* profile,
+                                 const BundleInstaller::ItemList& items)
+    : approved_(false),
+      browser_(NULL),
+      profile_(profile),
+      delegate_(NULL) {
+  BrowserList::AddObserver(this);
+  for (size_t i = 0; i < items.size(); ++i) {
+    items_[items[i].id] = items[i];
+    items_[items[i].id].state = Item::STATE_PENDING;
+  }
+}
+
+BundleInstaller::~BundleInstaller() {
+  BrowserList::RemoveObserver(this);
+}
+
+BundleInstaller::ItemList BundleInstaller::GetItemsWithState(
+    Item::State state) const {
+  ItemList list;
+
+  for (ItemMap::const_iterator i = items_.begin(); i != items_.end(); ++i) {
+    if (i->second.state == state)
+      list.push_back(i->second);
+  }
+
+  return list;
+}
+
+void BundleInstaller::PromptForApproval(Delegate* delegate) {
+  delegate_ = delegate;
+
+  AddRef();  // Balanced in ReportApproved() and ReportCanceled().
+
+  ParseManifests();
+}
+
+void BundleInstaller::CompleteInstall(NavigationController* controller,
+                                      Browser* browser,
+                                      Delegate* delegate) {
+  CHECK(approved_);
+
+  browser_ = browser;
+  delegate_ = delegate;
+
+  AddRef();  // Balanced in ReportComplete();
+
+  if (GetItemsWithState(Item::STATE_PENDING).empty()) {
+    ReportComplete();
+    return;
+  }
+
+  // Start each WebstoreInstaller.
+  for (ItemMap::iterator i = items_.begin(); i != items_.end(); ++i) {
+    if (i->second.state != Item::STATE_PENDING)
+      continue;
+
+    scoped_refptr<WebstoreInstaller> installer = new WebstoreInstaller(
+        profile_,
+        this,
+        controller,
+        i->first,
+        WebstoreInstaller::FLAG_NONE);
+    installer->Start();
+  }
+}
+
+// static
+void BundleInstaller::ShowInstalledBubble(
+    const BundleInstaller* bundle, Browser* browser) {
+  // TODO(jstritar): provide platform specific implementations.
+}
+
+void BundleInstaller::ParseManifests() {
+  if (items_.empty()) {
+    ReportCanceled(false);
+    return;
+  }
+
+  for (ItemMap::iterator i = items_.begin(); i != items_.end(); ++i) {
+    scoped_refptr<WebstoreInstallHelper> helper = new WebstoreInstallHelper(
+        this, i->first, i->second.manifest, "", GURL(), NULL);
+    helper->Start();
+  }
+}
+
+void BundleInstaller::ReportApproved() {
+  if (delegate_)
+    delegate_->OnBundleInstallApproved();
+
+  Release();  // Balanced in PromptForApproval().
+}
+
+void BundleInstaller::ReportCanceled(bool user_initiated) {
+  if (delegate_)
+    delegate_->OnBundleInstallCanceled(user_initiated);
+
+  Release();  // Balanced in PromptForApproval().
+}
+
+void BundleInstaller::ReportComplete() {
+  if (delegate_)
+    delegate_->OnBundleInstallCompleted();
+
+  Release();  // Balanced in CompleteInstall().
+}
+
+void BundleInstaller::ShowPromptIfDoneParsing() {
+  // We don't prompt until all the manifests have been parsed.
+  ItemList pending_items = GetItemsWithState(Item::STATE_PENDING);
+  if (pending_items.size() != dummy_extensions_.size())
+    return;
+
+  ShowPrompt();
+}
+
+void BundleInstaller::ShowPrompt() {
+  // Abort if we couldn't create any Extensions out of the manifests.
+  if (dummy_extensions_.empty()) {
+    ReportCanceled(false);
+    return;
+  }
+
+  scoped_refptr<ExtensionPermissionSet> permissions;
+  for (size_t i = 0; i < dummy_extensions_.size(); ++i) {
+    permissions = ExtensionPermissionSet::CreateUnion(
+          permissions, dummy_extensions_[i]->required_permission_set());
+  }
+
+  // TODO(jstritar): show the actual prompt.
+  if (g_auto_approve_for_test == PROCEED)
+    InstallUIProceed();
+  else if (g_auto_approve_for_test == ABORT)
+    InstallUIAbort(true);
+  else
+    InstallUIAbort(false);
+}
+
+void BundleInstaller::ShowInstalledBubbleIfDone() {
+  // We're ready to show the installed bubble when no items are pending.
+  if (!GetItemsWithState(Item::STATE_PENDING).empty())
+    return;
+
+  if (browser_)
+    ShowInstalledBubble(this, browser_);
+
+  ReportComplete();
+}
+
+void BundleInstaller::OnWebstoreParseSuccess(
+    const std::string& id,
+    const SkBitmap& icon,
+    DictionaryValue* manifest) {
+  dummy_extensions_.push_back(CreateDummyExtension(items_[id], manifest));
+  parsed_manifests_[id] = linked_ptr<DictionaryValue>(manifest);
+
+  ShowPromptIfDoneParsing();
+}
+
+void BundleInstaller::OnWebstoreParseFailure(
+    const std::string& id,
+    WebstoreInstallHelper::Delegate::InstallHelperResultCode result_code,
+    const std::string& error_message) {
+  items_[id].state = Item::STATE_FAILED;
+
+  ShowPromptIfDoneParsing();
+}
+
+void BundleInstaller::InstallUIProceed() {
+  approved_ = true;
+  for (ItemMap::iterator i = items_.begin(); i != items_.end(); ++i) {
+    if (i->second.state != Item::STATE_PENDING)
+      continue;
+
+    // Create a whitelist entry for each of the approved extensions.
+    CrxInstaller::WhitelistEntry* entry = new CrxInstaller::WhitelistEntry;
+    entry->parsed_manifest.reset(parsed_manifests_[i->first]->DeepCopy());
+    entry->localized_name = i->second.localized_name;
+    entry->use_app_installed_bubble = false;
+    entry->skip_post_install_ui = true;
+    CrxInstaller::SetWhitelistEntry(i->first, entry);
+  }
+  ReportApproved();
+}
+
+void BundleInstaller::InstallUIAbort(bool user_initiated) {
+  for (ItemMap::iterator i = items_.begin(); i != items_.end(); ++i)
+    i->second.state = Item::STATE_FAILED;
+
+  ReportCanceled(user_initiated);
+}
+
+void BundleInstaller::OnExtensionInstallSuccess(const std::string& id) {
+  items_[id].state = Item::STATE_INSTALLED;
+
+  ShowInstalledBubbleIfDone();
+}
+
+void BundleInstaller::OnExtensionInstallFailure(const std::string& id,
+                                                const std::string& error) {
+  items_[id].state = Item::STATE_FAILED;
+
+  ShowInstalledBubbleIfDone();
+}
+
+void BundleInstaller::OnBrowserAdded(const Browser* browser) {
+}
+
+void BundleInstaller::OnBrowserRemoved(const Browser* browser) {
+  if (browser_ == browser)
+    browser_ = NULL;
+}
+
+void BundleInstaller::OnBrowserSetLastActive(const Browser* browser) {
+}
+
+}  // namespace extensions