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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "DatabaseClientImpl.h"
     33 
     34 #include "WebFrameImpl.h"
     35 #include "WebPermissionClient.h"
     36 #include "WebViewImpl.h"
     37 #include "WorkerPermissionClient.h"
     38 #include "core/dom/Document.h"
     39 #include "core/dom/ExecutionContext.h"
     40 #include "core/workers/WorkerGlobalScope.h"
     41 
     42 using namespace WebCore;
     43 
     44 namespace blink {
     45 
     46 PassOwnPtr<DatabaseClientImpl> DatabaseClientImpl::create()
     47 {
     48     return adoptPtr(new DatabaseClientImpl());
     49 }
     50 
     51 DatabaseClientImpl::~DatabaseClientImpl()
     52 {
     53 }
     54 
     55 bool DatabaseClientImpl::allowDatabase(ExecutionContext* executionContext, const String& name, const String& displayName, unsigned long estimatedSize)
     56 {
     57     ASSERT(executionContext->isContextThread());
     58     ASSERT(executionContext->isDocument() || executionContext->isWorkerGlobalScope());
     59     if (executionContext->isDocument()) {
     60         Document* document = toDocument(executionContext);
     61         WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
     62         if (!webFrame)
     63             return false;
     64         if (webFrame->permissionClient())
     65             return webFrame->permissionClient()->allowDatabase(webFrame, name, displayName, estimatedSize);
     66 
     67         WebViewImpl* webView = webFrame->viewImpl();
     68         if (!webView)
     69             return false;
     70         if (webView->permissionClient())
     71             return webView->permissionClient()->allowDatabase(webFrame, name, displayName, estimatedSize);
     72     } else {
     73         WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(executionContext);
     74         return WorkerPermissionClient::from(workerGlobalScope)->allowDatabase(name, displayName, estimatedSize);
     75     }
     76     return true;
     77 }
     78 
     79 DatabaseClientImpl::DatabaseClientImpl()
     80 {
     81 }
     82 
     83 } // namespace blink
     84