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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 "LocalFileSystemClient.h"
     33 
     34 #include "WebFrameImpl.h"
     35 #include "WebViewImpl.h"
     36 #include "WorkerPermissionClient.h"
     37 #include "core/dom/Document.h"
     38 #include "core/workers/WorkerGlobalScope.h"
     39 #include "platform/weborigin/SecurityOrigin.h"
     40 #include "public/web/WebPermissionClient.h"
     41 #include "wtf/text/WTFString.h"
     42 
     43 using namespace WebCore;
     44 
     45 namespace blink {
     46 
     47 PassOwnPtr<FileSystemClient> LocalFileSystemClient::create()
     48 {
     49     return adoptPtr(static_cast<FileSystemClient*>(new LocalFileSystemClient()));
     50 }
     51 
     52 LocalFileSystemClient::~LocalFileSystemClient()
     53 {
     54 }
     55 
     56 bool LocalFileSystemClient::allowFileSystem(ExecutionContext* context)
     57 {
     58     if (context->isDocument()) {
     59         Document* document = toDocument(context);
     60         WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
     61         if (webFrame->permissionClient())
     62             return webFrame->permissionClient()->allowFileSystem(webFrame);
     63         blink::WebViewImpl* webView = webFrame->viewImpl();
     64         return !webView->permissionClient() || webView->permissionClient()->allowFileSystem(webFrame);
     65     }
     66     ASSERT(context->isWorkerGlobalScope());
     67     return WorkerPermissionClient::from(toWorkerGlobalScope(context))->allowFileSystem();
     68 }
     69 
     70 LocalFileSystemClient::LocalFileSystemClient()
     71 {
     72 }
     73 
     74 } // namespace blink
     75