LCOV - code coverage report
Current view: directory - dom/indexedDB - CheckPermissionsHelper.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 71 19 26.8 %
Date: 2012-06-02 Functions: 7 5 71.4 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* vim: set ts=2 et sw=2 tw=80: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Indexed Database.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * The Mozilla Foundation.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Ben Turner <bent.mozilla@gmail.com>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include "CheckPermissionsHelper.h"
      41                 : 
      42                 : #include "nsIDOMWindow.h"
      43                 : #include "nsIObserverService.h"
      44                 : #include "nsIPermissionManager.h"
      45                 : #include "nsIPrincipal.h"
      46                 : #include "nsIScriptObjectPrincipal.h"
      47                 : #include "nsIURI.h"
      48                 : 
      49                 : #include "nsContentUtils.h"
      50                 : #include "nsDOMStorage.h"
      51                 : #include "nsNetUtil.h"
      52                 : #include "nsThreadUtils.h"
      53                 : #include "mozilla/Services.h"
      54                 : #include "mozilla/Preferences.h"
      55                 : 
      56                 : #include "IndexedDatabaseManager.h"
      57                 : 
      58                 : #define PERMISSION_INDEXEDDB "indexedDB"
      59                 : #define PREF_INDEXEDDB_ENABLED "dom.indexedDB.enabled"
      60                 : #define TOPIC_PERMISSIONS_PROMPT "indexedDB-permissions-prompt"
      61                 : #define TOPIC_PERMISSIONS_RESPONSE "indexedDB-permissions-response"
      62                 : 
      63                 : using namespace mozilla;
      64                 : USING_INDEXEDDB_NAMESPACE
      65                 : using namespace mozilla::services;
      66                 : 
      67                 : namespace {
      68                 : 
      69                 : inline
      70                 : PRUint32
      71              76 : GetIndexedDBPermissions(const nsACString& aASCIIOrigin,
      72                 :                         nsIDOMWindow* aWindow)
      73                 : {
      74              76 :   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
      75                 : 
      76              76 :   if (!Preferences::GetBool(PREF_INDEXEDDB_ENABLED)) {
      77               0 :     return nsIPermissionManager::DENY_ACTION;
      78                 :   }
      79                 : 
      80                 :   // No window here means chrome access
      81              76 :   if (!aWindow) {
      82              76 :     return nsIPermissionManager::ALLOW_ACTION;
      83                 :   }
      84                 : 
      85               0 :   nsCOMPtr<nsIScriptObjectPrincipal> sop(do_QueryInterface(aWindow));
      86               0 :   NS_ENSURE_TRUE(sop, nsIPermissionManager::DENY_ACTION);
      87                 : 
      88               0 :   if (nsContentUtils::IsSystemPrincipal(sop->GetPrincipal())) {
      89               0 :     return nsIPermissionManager::ALLOW_ACTION;
      90                 :   }
      91                 : 
      92               0 :   if (nsDOMStorageManager::gStorageManager->InPrivateBrowsingMode()) {
      93                 :     // TODO Support private browsing indexedDB?
      94               0 :     return nsIPermissionManager::DENY_ACTION;
      95                 :   }
      96                 : 
      97               0 :   nsCOMPtr<nsIURI> uri;
      98               0 :   nsresult rv = NS_NewURI(getter_AddRefs(uri), aASCIIOrigin);
      99               0 :   NS_ENSURE_SUCCESS(rv, nsIPermissionManager::DENY_ACTION);
     100                 : 
     101                 :   nsCOMPtr<nsIPermissionManager> permissionManager =
     102               0 :     do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
     103               0 :   NS_ENSURE_TRUE(permissionManager, nsIPermissionManager::DENY_ACTION);
     104                 : 
     105                 :   PRUint32 permission;
     106               0 :   rv = permissionManager->TestPermission(uri, PERMISSION_INDEXEDDB,
     107               0 :                                          &permission);
     108               0 :   NS_ENSURE_SUCCESS(rv, nsIPermissionManager::DENY_ACTION);
     109                 : 
     110               0 :   return permission;
     111                 : }
     112                 : 
     113                 : } // anonymous namespace
     114                 : 
     115             723 : NS_IMPL_THREADSAFE_ISUPPORTS3(CheckPermissionsHelper, nsIRunnable,
     116                 :                                                       nsIInterfaceRequestor,
     117                 :                                                       nsIObserver)
     118                 : 
     119                 : NS_IMETHODIMP
     120              76 : CheckPermissionsHelper::Run()
     121                 : {
     122              76 :   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
     123                 : 
     124                 :   PRUint32 permission = mHasPrompted ?
     125                 :                         mPromptResult :
     126              76 :                         GetIndexedDBPermissions(mASCIIOrigin, mWindow);
     127                 : 
     128                 :   nsresult rv;
     129              76 :   if (mHasPrompted) {
     130                 :     // Add permissions to the database, but only if we are in the parent
     131                 :     // process (if we are in the child process, we have already
     132                 :     // set the permission when the prompt was shown in the parent, as
     133                 :     // we cannot set the permission from the child).
     134               0 :     if (permission != nsIPermissionManager::UNKNOWN_ACTION &&
     135               0 :         XRE_GetProcessType() == GeckoProcessType_Default) {
     136               0 :       nsCOMPtr<nsIURI> uri;
     137               0 :       rv = NS_NewURI(getter_AddRefs(uri), mASCIIOrigin);
     138               0 :       NS_ENSURE_SUCCESS(rv, rv);
     139                 :   
     140                 :       nsCOMPtr<nsIPermissionManager> permissionManager =
     141               0 :         do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
     142               0 :       NS_ENSURE_STATE(permissionManager);
     143                 :   
     144               0 :       rv = permissionManager->Add(uri, PERMISSION_INDEXEDDB, permission,
     145               0 :                                   nsIPermissionManager::EXPIRE_NEVER, 0);
     146               0 :       NS_ENSURE_SUCCESS(rv, rv);
     147                 :     }
     148                 :   }
     149              76 :   else if (permission == nsIPermissionManager::UNKNOWN_ACTION &&
     150                 :            mPromptAllowed) {
     151               0 :     nsCOMPtr<nsIObserverService> obs = GetObserverService();
     152               0 :     rv = obs->NotifyObservers(static_cast<nsIRunnable*>(this),
     153               0 :                               TOPIC_PERMISSIONS_PROMPT, nsnull);
     154               0 :     NS_ENSURE_SUCCESS(rv, rv);
     155                 : 
     156               0 :     return NS_OK;
     157                 :   }
     158                 : 
     159             152 :   nsRefPtr<OpenDatabaseHelper> helper;
     160              76 :   helper.swap(mHelper);
     161                 : 
     162             152 :   nsCOMPtr<nsIDOMWindow> window;
     163              76 :   window.swap(mWindow);
     164                 : 
     165              76 :   if (permission == nsIPermissionManager::ALLOW_ACTION) {
     166              76 :     IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
     167              76 :     NS_ASSERTION(mgr, "This should never be null!");
     168                 : 
     169              76 :     return helper->Dispatch(mgr->IOThread());
     170                 :   }
     171                 : 
     172               0 :   NS_ASSERTION(permission == nsIPermissionManager::UNKNOWN_ACTION ||
     173                 :                permission == nsIPermissionManager::DENY_ACTION,
     174                 :                "Unknown permission!");
     175                 : 
     176               0 :   helper->SetError(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
     177                 : 
     178               0 :   return helper->RunImmediately();
     179                 : }
     180                 : 
     181                 : NS_IMETHODIMP
     182               0 : CheckPermissionsHelper::GetInterface(const nsIID& aIID,
     183                 :                                      void** aResult)
     184                 : {
     185               0 :   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
     186               0 :   if (aIID.Equals(NS_GET_IID(nsIObserver))) {
     187               0 :     return QueryInterface(aIID, aResult);
     188                 :   }
     189                 : 
     190               0 :   if (aIID.Equals(NS_GET_IID(nsIDOMWindow))) {
     191               0 :     return mWindow->QueryInterface(aIID, aResult);
     192                 :   }
     193                 : 
     194               0 :   *aResult = nsnull;
     195               0 :   return NS_ERROR_NOT_AVAILABLE;
     196                 : }
     197                 : 
     198                 : NS_IMETHODIMP
     199               0 : CheckPermissionsHelper::Observe(nsISupports* aSubject,
     200                 :                                 const char* aTopic,
     201                 :                                 const PRUnichar* aData)
     202                 : {
     203               0 :   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
     204               0 :   NS_ASSERTION(!strcmp(aTopic, TOPIC_PERMISSIONS_RESPONSE), "Bad topic!");
     205               0 :   NS_ASSERTION(mPromptAllowed, "How did we get here?");
     206                 : 
     207               0 :   mHasPrompted = true;
     208                 : 
     209                 :   nsresult rv;
     210               0 :   mPromptResult = nsDependentString(aData).ToInteger(&rv);
     211               0 :   NS_ENSURE_SUCCESS(rv, rv);
     212                 : 
     213               0 :   rv = NS_DispatchToCurrentThread(this);
     214               0 :   NS_ENSURE_SUCCESS(rv, rv);
     215                 : 
     216               0 :   return NS_OK;
     217                 : }

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