LCOV - code coverage report
Current view: directory - dom/src/storage - StorageChild.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 124 2 1.6 %
Date: 2012-06-02 Functions: 28 2 7.1 %

       1                 : /* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
       2                 : /* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
       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 Mozilla DOM Storage.
      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                 :  *   Josh Matthews <josh@joshmatthews.net> (original author)
      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 "StorageChild.h"
      41                 : #include "mozilla/dom/ContentChild.h"
      42                 : #include "nsDOMError.h"
      43                 : 
      44                 : namespace mozilla {
      45                 : namespace dom {
      46                 : 
      47            1464 : NS_IMPL_CYCLE_COLLECTION_1(StorageChild, mStorage)
      48                 : 
      49               0 : NS_IMPL_CYCLE_COLLECTING_ADDREF(StorageChild)
      50               0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StorageChild)
      51               0 :   NS_INTERFACE_MAP_ENTRY(nsISupports)
      52               0 : NS_INTERFACE_MAP_END
      53                 : 
      54               0 : NS_IMETHODIMP_(nsrefcnt) StorageChild::Release(void)
      55                 : {
      56               0 :   NS_PRECONDITION(0 != mRefCnt, "dup release");
      57               0 :   NS_ASSERT_OWNINGTHREAD(StorageChild);
      58               0 :   nsISupports* base = NS_CYCLE_COLLECTION_CLASSNAME(StorageChild)::Upcast(this);
      59               0 :   nsrefcnt count = mRefCnt.decr(base);
      60               0 :   NS_LOG_RELEASE(this, count, "StorageChild");
      61               0 :   if (count == 1 && mIPCOpen) {
      62               0 :     Send__delete__(this);
      63               0 :     return 0;
      64                 :   }
      65               0 :   if (count == 0) {
      66               0 :     mRefCnt.stabilizeForDeletion(base);
      67               0 :     delete this;
      68               0 :     return 0;
      69                 :   }
      70               0 :   return count;
      71                 : }
      72                 : 
      73               0 : StorageChild::StorageChild(nsDOMStorage* aOwner)
      74                 : : mStorage(aOwner)
      75               0 : , mIPCOpen(false)
      76                 : {
      77               0 : }
      78                 : 
      79               0 : StorageChild::StorageChild(nsDOMStorage* aOwner, StorageChild& aOther)
      80                 : : DOMStorageBase(aOther)
      81                 : , mStorage(aOwner)
      82               0 : , mIPCOpen(false)
      83                 : {
      84               0 : }
      85                 : 
      86                 : void
      87               0 : StorageChild::AddIPDLReference()
      88                 : {
      89               0 :   NS_ABORT_IF_FALSE(!mIPCOpen, "Attempting to retain multiple IPDL references");
      90               0 :   mIPCOpen = true;
      91               0 :   AddRef();
      92               0 : }
      93                 : 
      94                 : void
      95               0 : StorageChild::ReleaseIPDLReference()
      96                 : {
      97               0 :   NS_ABORT_IF_FALSE(mIPCOpen, "Attempting to release non-existent IPDL reference");
      98               0 :   mIPCOpen = false;
      99               0 :   Release();
     100               0 : }
     101                 : 
     102                 : bool
     103               0 : StorageChild::CacheStoragePermissions()
     104                 : {
     105               0 :   nsDOMStorage* storage = static_cast<nsDOMStorage*>(mStorage.get());
     106               0 :   return storage->CacheStoragePermissions();
     107                 : }
     108                 : 
     109                 : void
     110               0 : StorageChild::InitRemote()
     111                 : {
     112               0 :   ContentChild* child = ContentChild::GetSingleton();
     113               0 :   AddIPDLReference();
     114               0 :   child->SendPStorageConstructor(this, null_t());
     115                 :   SendInit(mUseDB, mCanUseChromePersist, mSessionOnly, mDomain, mScopeDBKey,
     116               0 :            mQuotaDomainDBKey, mQuotaETLDplus1DomainDBKey, mStorageType);
     117               0 : }
     118                 : 
     119                 : void
     120               0 : StorageChild::InitAsSessionStorage(nsIURI* aDomainURI)
     121                 : {
     122               0 :   DOMStorageBase::InitAsSessionStorage(aDomainURI);
     123               0 :   InitRemote();
     124               0 : }
     125                 : 
     126                 : void
     127               0 : StorageChild::InitAsLocalStorage(nsIURI* aDomainURI, bool aCanUseChromePersist)
     128                 : {
     129               0 :   DOMStorageBase::InitAsLocalStorage(aDomainURI, aCanUseChromePersist);
     130               0 :   InitRemote();
     131               0 : }
     132                 : 
     133                 : nsTArray<nsString>*
     134               0 : StorageChild::GetKeys(bool aCallerSecure)
     135                 : {
     136               0 :   InfallibleTArray<nsString> remoteKeys;
     137               0 :   SendGetKeys(aCallerSecure, &remoteKeys);
     138               0 :   nsTArray<nsString>* keys = new nsTArray<nsString>;
     139               0 :   *keys = remoteKeys;
     140               0 :   return keys;
     141                 : }
     142                 : 
     143                 : nsresult
     144               0 : StorageChild::GetLength(bool aCallerSecure, PRUint32* aLength)
     145                 : {
     146                 :   nsresult rv;
     147               0 :   SendGetLength(aCallerSecure, mSessionOnly, aLength, &rv);
     148               0 :   return rv;
     149                 : }
     150                 : 
     151                 : nsresult
     152               0 : StorageChild::GetKey(bool aCallerSecure, PRUint32 aIndex, nsAString& aKey)
     153                 : {
     154                 :   nsresult rv;
     155               0 :   nsString key;
     156               0 :   SendGetKey(aCallerSecure, mSessionOnly, aIndex, &key, &rv);
     157               0 :   if (NS_FAILED(rv))
     158               0 :     return rv;
     159               0 :   aKey = key;
     160               0 :   return NS_OK;
     161                 : }
     162                 : 
     163                 : // Unlike other cross-process forwarding methods, GetValue needs to replicate
     164                 : // the following behaviour of DOMStorageImpl::GetValue:
     165                 : //
     166                 : // - if a security error occurs, or the item isn't found, return null without
     167                 : //   propogating the error.
     168                 : //
     169                 : // If DOMStorageImpl::GetValue ever changes its behaviour, this should be kept
     170                 : // in sync.
     171                 : nsIDOMStorageItem*
     172               0 : StorageChild::GetValue(bool aCallerSecure, const nsAString& aKey, nsresult* rv)
     173                 : {
     174               0 :   nsresult rv2 = *rv = NS_OK;
     175               0 :   StorageItem storageItem;
     176               0 :   SendGetValue(aCallerSecure, mSessionOnly, nsString(aKey), &storageItem, &rv2);
     177               0 :   if (rv2 == NS_ERROR_DOM_SECURITY_ERR || rv2 == NS_ERROR_DOM_NOT_FOUND_ERR)
     178               0 :     return nsnull;
     179               0 :   *rv = rv2;
     180               0 :   if (NS_FAILED(*rv) || storageItem.type() == StorageItem::Tnull_t)
     181               0 :     return nsnull;
     182               0 :   const ItemData& data = storageItem.get_ItemData();
     183               0 :   nsIDOMStorageItem* item = new nsDOMStorageItem(this, aKey, data.value(),
     184               0 :                                                  data.secure());
     185               0 :   return item;
     186                 : }
     187                 : 
     188                 : nsresult
     189               0 : StorageChild::SetValue(bool aCallerSecure, const nsAString& aKey,
     190                 :                        const nsAString& aData, nsAString& aOldData)
     191                 : {
     192                 :   nsresult rv;
     193               0 :   nsString oldData;
     194               0 :   SendSetValue(aCallerSecure, mSessionOnly, nsString(aKey), nsString(aData),
     195               0 :                &oldData, &rv);
     196               0 :   if (NS_FAILED(rv))
     197               0 :     return rv;
     198               0 :   aOldData = oldData;
     199               0 :   return NS_OK;
     200                 : }
     201                 : 
     202                 : nsresult
     203               0 : StorageChild::RemoveValue(bool aCallerSecure, const nsAString& aKey,
     204                 :                           nsAString& aOldData)
     205                 : {
     206                 :   nsresult rv;
     207               0 :   nsString oldData;
     208               0 :   SendRemoveValue(aCallerSecure, mSessionOnly, nsString(aKey), &oldData, &rv);
     209               0 :   if (NS_FAILED(rv))
     210               0 :     return rv;
     211               0 :   aOldData = oldData;
     212               0 :   return NS_OK;
     213                 : }
     214                 : 
     215                 : nsresult
     216               0 : StorageChild::Clear(bool aCallerSecure, PRInt32* aOldCount)
     217                 : {
     218                 :   nsresult rv;
     219                 :   PRInt32 oldCount;
     220               0 :   SendClear(aCallerSecure, mSessionOnly, &oldCount, &rv);
     221               0 :   if (NS_FAILED(rv))
     222               0 :     return rv;
     223               0 :   *aOldCount = oldCount;
     224               0 :   return NS_OK;
     225                 : }
     226                 : 
     227                 : bool
     228               0 : StorageChild::CanUseChromePersist()
     229                 : {
     230               0 :   return mCanUseChromePersist;
     231                 : }
     232                 : 
     233                 : nsresult
     234               0 : StorageChild::GetDBValue(const nsAString& aKey, nsAString& aValue,
     235                 :                          bool* aSecure)
     236                 : {
     237                 :   nsresult rv;
     238               0 :   nsString value;
     239               0 :   SendGetDBValue(nsString(aKey), &value, aSecure, &rv);
     240               0 :   aValue = value;
     241               0 :   return rv;
     242                 : }
     243                 : 
     244                 : nsresult
     245               0 : StorageChild::SetDBValue(const nsAString& aKey,
     246                 :                          const nsAString& aValue,
     247                 :                          bool aSecure)
     248                 : {
     249                 :   nsresult rv;
     250               0 :   SendSetDBValue(nsString(aKey), nsString(aValue), aSecure, &rv);
     251               0 :   return rv;
     252                 : }
     253                 : 
     254                 : nsresult
     255               0 : StorageChild::SetSecure(const nsAString& aKey, bool aSecure)
     256                 : {
     257                 :   nsresult rv;
     258               0 :   SendSetSecure(nsString(aKey), aSecure, &rv);
     259               0 :   return rv;
     260                 : }
     261                 : 
     262                 : nsresult
     263               0 : StorageChild::CloneFrom(bool aCallerSecure, DOMStorageBase* aThat)
     264                 : {
     265               0 :   StorageChild* other = static_cast<StorageChild*>(aThat);
     266               0 :   ContentChild* child = ContentChild::GetSingleton();
     267               0 :   StorageClone clone(nsnull, other, aCallerSecure);
     268               0 :   AddIPDLReference();
     269               0 :   child->SendPStorageConstructor(this, clone);
     270                 :   SendInit(mUseDB, mCanUseChromePersist, mSessionOnly, mDomain, mScopeDBKey,
     271               0 :            mQuotaDomainDBKey, mQuotaETLDplus1DomainDBKey, mStorageType);
     272               0 :   return NS_OK;
     273                 : }
     274                 : 
     275                 : }
     276            4392 : }

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