src/third_party/WebKit/Source/modules/indexeddb/IDBFactory.cpp

   1 /*
   2  * Copyright (C) 2010 Google Inc. All rights reserved.
   3  *
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   6  * are met:
   7  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
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  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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  27  */
  28
  29 #include "config.h"
  30 #include "modules/indexeddb/IDBFactory.h"
  31
  32 #include "bindings/core/v8/ExceptionState.h"
  33 #include "bindings/modules/v8/IDBBindingUtilities.h"
  34 #include "core/dom/Document.h"
  35 #include "core/dom/ExceptionCode.h"
  36 #include "modules/indexeddb/IDBDatabase.h"
  37 #include "modules/indexeddb/IDBDatabaseCallbacks.h"
  38 #include "modules/indexeddb/IDBHistograms.h"
  39 #include "modules/indexeddb/IDBKey.h"
  40 #include "modules/indexeddb/IDBTracing.h"
  41 #include "modules/indexeddb/IndexedDBClient.h"
  42 #include "modules/indexeddb/WebIDBCallbacksImpl.h"
  43 #include "modules/indexeddb/WebIDBDatabaseCallbacksImpl.h"
  44 #include "platform/weborigin/DatabaseIdentifier.h"
  45 #include "platform/weborigin/SecurityOrigin.h"
  46 #include "public/platform/Platform.h"
  47 #include "public/platform/WebIDBFactory.h"
  48
  49 namespace blink {
  50
  51 static const char permissionDeniedErrorMessage[] = "The user denied permission to access the database.";
  52
  53 IDBFactory::IDBFactory(IndexedDBClient* permissionClient)
  54     : m_permissionClient(permissionClient)
  55 {
  56 }
  57
  58 void IDBFactory::trace(Visitor* visitor)
  59 {
  60     visitor->trace(m_permissionClient);
  61 }
  62
  63 static bool isContextValid(ExecutionContext* context)
  64 {
  65     ASSERT(context->isDocument() || context->isWorkerGlobalScope());
  66     if (context->isDocument()) {
  67         Document* document = toDocument(context);
  68         return document->frame() && document->page();
  69     }
  70     return true;
  71 }
  72
  73 IDBRequest* IDBFactory::getDatabaseNames(ScriptState* scriptState, ExceptionState& exceptionState)
  74 {
  75     IDB_TRACE("IDBFactory::getDatabaseNames");
  76     if (!isContextValid(scriptState->executionContext()))
  77         return nullptr;
  78     if (!scriptState->executionContext()->securityOrigin()->canAccessDatabase()) {
  79         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
  80         return 0;
  81     }
  82
  83     IDBRequest* request = IDBRequest::create(scriptState, IDBAny::createNull(), 0);
  84
  85     if (!m_permissionClient->allowIndexedDB(scriptState->executionContext(), "Database Listing")) {
  86         request->onError(DOMError::create(UnknownError, permissionDeniedErrorMessage));
  87         return request;
  88     }
  89
  90     Platform::current()->idbFactory()->getDatabaseNames(WebIDBCallbacksImpl::create(request).leakPtr(), createDatabaseIdentifierFromSecurityOrigin(scriptState->executionContext()->securityOrigin()));
  91     return request;
  92 }
  93
  94 IDBOpenDBRequest* IDBFactory::open(ScriptState* scriptState, const String& name, unsigned long long version, ExceptionState& exceptionState)
  95 {
  96     IDB_TRACE("IDBFactory::open");
  97     if (!version) {
  98         exceptionState.throwTypeError("The version provided must not be 0.");
  99         return 0;
 100     }
 101     return openInternal(scriptState, name, version, exceptionState);
 102 }
 103
 104 IDBOpenDBRequest* IDBFactory::openInternal(ScriptState* scriptState, const String& name, int64_t version, ExceptionState& exceptionState)
 105 {
 106     Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBOpenCall, IDBMethodsMax);
 107     ASSERT(version >= 1 || version == IDBDatabaseMetadata::NoIntVersion);
 108     if (name.isNull()) {
 109         exceptionState.throwTypeError("The name provided must not be empty.");
 110         return 0;
 111     }
 112     if (!isContextValid(scriptState->executionContext()))
 113         return nullptr;
 114     if (!scriptState->executionContext()->securityOrigin()->canAccessDatabase()) {
 115         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
 116         return 0;
 117     }
 118
 119     IDBDatabaseCallbacks* databaseCallbacks = IDBDatabaseCallbacks::create();
 120     int64_t transactionId = IDBDatabase::nextTransactionId();
 121     IDBOpenDBRequest* request = IDBOpenDBRequest::create(scriptState, databaseCallbacks, transactionId, version);
 122
 123     if (!m_permissionClient->allowIndexedDB(scriptState->executionContext(), name)) {
 124         request->onError(DOMError::create(UnknownError, permissionDeniedErrorMessage));
 125         return request;
 126     }
 127
 128     Platform::current()->idbFactory()->open(name, version, transactionId, WebIDBCallbacksImpl::create(request).leakPtr(), WebIDBDatabaseCallbacksImpl::create(databaseCallbacks).leakPtr(), createDatabaseIdentifierFromSecurityOrigin(scriptState->executionContext()->securityOrigin()));
 129     return request;
 130 }
 131
 132 IDBOpenDBRequest* IDBFactory::open(ScriptState* scriptState, const String& name, ExceptionState& exceptionState)
 133 {
 134     IDB_TRACE("IDBFactory::open");
 135     return openInternal(scriptState, name, IDBDatabaseMetadata::NoIntVersion, exceptionState);
 136 }
 137
 138 IDBOpenDBRequest* IDBFactory::deleteDatabase(ScriptState* scriptState, const String& name, ExceptionState& exceptionState)
 139 {
 140     IDB_TRACE("IDBFactory::deleteDatabase");
 141     Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBDeleteDatabaseCall, IDBMethodsMax);
 142     if (name.isNull()) {
 143         exceptionState.throwTypeError("The name provided must not be empty.");
 144         return 0;
 145     }
 146     if (!isContextValid(scriptState->executionContext()))
 147         return nullptr;
 148     if (!scriptState->executionContext()->securityOrigin()->canAccessDatabase()) {
 149         exceptionState.throwSecurityError("access to the Indexed Database API is denied in this context.");
 150         return 0;
 151     }
 152
 153     IDBOpenDBRequest* request = IDBOpenDBRequest::create(scriptState, nullptr, 0, IDBDatabaseMetadata::DefaultIntVersion);
 154
 155     if (!m_permissionClient->allowIndexedDB(scriptState->executionContext(), name)) {
 156         request->onError(DOMError::create(UnknownError, permissionDeniedErrorMessage));
 157         return request;
 158     }
 159
 160     Platform::current()->idbFactory()->deleteDatabase(name, WebIDBCallbacksImpl::create(request).leakPtr(), createDatabaseIdentifierFromSecurityOrigin(scriptState->executionContext()->securityOrigin()));
 161     return request;
 162 }
 163
 164 short IDBFactory::cmp(ScriptState* scriptState, const ScriptValue& firstValue, const ScriptValue& secondValue, ExceptionState& exceptionState)
 165 {
 166     IDBKey* first = scriptValueToIDBKey(scriptState->isolate(), firstValue);
 167     IDBKey* second = scriptValueToIDBKey(scriptState->isolate(), secondValue);
 168
 169     ASSERT(first);
 170     ASSERT(second);
 171
 172     if (!first->isValid() || !second->isValid()) {
 173         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
 174         return 0;
 175     }
 176
 177     return static_cast<short>(first->compare(second));
 178 }
 179
 180 } // namespace blink