Make extension commands grant the activeTab permission.

chrome/browser/extensions/active_tab_permission_manager.cc

-// 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/active_tab_permission_manager.h"
-
-#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/sessions/session_id.h"
-#include "chrome/browser/ui/tab_contents/tab_contents.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_messages.h"
-#include "chrome/common/extensions/permissions/permission_set.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/navigation_details.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_source.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/web_contents.h"
-
-using content::RenderProcessHost;
-using content::WebContentsObserver;
-
-namespace extensions {
-
-ActiveTabPermissionManager::ActiveTabPermissionManager(
-    content::WebContents* web_contents, int tab_id, Profile* profile)
-    : WebContentsObserver(web_contents), tab_id_(tab_id) {
-  registrar_.Add(this,
-                 chrome::NOTIFICATION_EXTENSION_UNLOADED,
-                 content::Source<Profile>(profile));
-}
-
-ActiveTabPermissionManager::~ActiveTabPermissionManager() {}
-
-void ActiveTabPermissionManager::GrantIfRequested(const Extension* extension) {
-  if (!extension->HasAPIPermission(extensions::APIPermission::kActiveTab))
-    return;
-
-  if (IsGranted(extension))
-    return;
-
-  URLPattern pattern(UserScript::kValidUserScriptSchemes);
-  if (pattern.Parse(web_contents()->GetURL().spec()) !=
-          URLPattern::PARSE_SUCCESS) {
-    // Pattern parsing could fail if this is an unsupported URL e.g. chrome://.
-    return;
-  }
-
-  APIPermissionSet new_apis;
-  new_apis.insert(APIPermission::kTab);
-  URLPatternSet new_hosts;
-  new_hosts.AddPattern(pattern);
-  scoped_refptr<const PermissionSet> new_permissions =
-      new PermissionSet(new_apis, new_hosts, URLPatternSet());
-
-  extension->UpdateTabSpecificPermissions(tab_id_, new_permissions);
-  granted_extensions_.Insert(extension);
-  Send(new ExtensionMsg_UpdateTabSpecificPermissions(GetPageID(),
-                                                     tab_id_,
-                                                     extension->id(),
-                                                     new_hosts));
-}
-
-bool ActiveTabPermissionManager::IsGranted(const Extension* extension) {
-  return granted_extensions_.Contains(extension->id());
-}
-
-void ActiveTabPermissionManager::DidNavigateMainFrame(
-    const content::LoadCommittedDetails& details,
-    const content::FrameNavigateParams& params) {
-  if (details.is_in_page)
-    return;
-  DCHECK(details.is_main_frame);  // important: sub-frames don't get granted!
-  ClearActiveExtensionsAndNotify();
-}
-
-void ActiveTabPermissionManager::WebContentsDestroyed(
-    content::WebContents* web_contents) {
-  ClearActiveExtensionsAndNotify();
-}
-
-void ActiveTabPermissionManager::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  DCHECK_EQ(type, chrome::NOTIFICATION_EXTENSION_UNLOADED);
-  const Extension* extension =
-      content::Details<UnloadedExtensionInfo>(details)->extension;
-  // Note: don't need to clear the permissions (nor tell the renderer about it)
-  // because it's being unloaded anyway.
-  granted_extensions_.Remove(extension->id());
-}
-
-void ActiveTabPermissionManager::ClearActiveExtensionsAndNotify() {
-  if (granted_extensions_.is_empty())
-    return;
-
-  std::vector<std::string> extension_ids;
-
-  for (ExtensionSet::const_iterator it = granted_extensions_.begin();
-       it != granted_extensions_.end(); ++it) {
-    (*it)->ClearTabSpecificPermissions(tab_id_);
-    extension_ids.push_back((*it)->id());
-  }
-
-  Send(new ExtensionMsg_ClearTabSpecificPermissions(tab_id_, extension_ids));
-  granted_extensions_.Clear();
-}
-
-int32 ActiveTabPermissionManager::GetPageID() {
-  return web_contents()->GetController().GetActiveEntry()->GetPageID();
-}
-
-}  // namespace extensions