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      1 /*
      2  * Copyright (C) 2012, 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 met:
      6  *
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
     14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     16  * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
     17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     19  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     20  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
     23  * DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "modules/filesystem/DOMWindowFileSystem.h"
     28 
     29 #include "core/dom/Document.h"
     30 #include "core/fileapi/FileError.h"
     31 #include "core/frame/DOMWindow.h"
     32 #include "modules/filesystem/DOMFileSystem.h"
     33 #include "modules/filesystem/EntryCallback.h"
     34 #include "modules/filesystem/ErrorCallback.h"
     35 #include "modules/filesystem/FileSystemCallback.h"
     36 #include "modules/filesystem/FileSystemCallbacks.h"
     37 #include "modules/filesystem/LocalFileSystem.h"
     38 #include "platform/FileSystemType.h"
     39 #include "platform/weborigin/SecurityOrigin.h"
     40 
     41 namespace WebCore {
     42 
     43 DOMWindowFileSystem::DOMWindowFileSystem()
     44 {
     45 }
     46 
     47 DOMWindowFileSystem::~DOMWindowFileSystem()
     48 {
     49 }
     50 
     51 void DOMWindowFileSystem::webkitRequestFileSystem(DOMWindow* window, int type, long long size, PassOwnPtr<FileSystemCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback)
     52 {
     53     if (!window->isCurrentlyDisplayedInFrame())
     54         return;
     55 
     56     Document* document = window->document();
     57     if (!document)
     58         return;
     59 
     60     if (!document->securityOrigin()->canAccessFileSystem()) {
     61         DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SECURITY_ERR));
     62         return;
     63     }
     64 
     65     FileSystemType fileSystemType = static_cast<FileSystemType>(type);
     66     if (!DOMFileSystemBase::isValidType(fileSystemType)) {
     67         DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR));
     68         return;
     69     }
     70 
     71     LocalFileSystem::from(document)->requestFileSystem(document, fileSystemType, size, FileSystemCallbacks::create(successCallback, errorCallback, document, fileSystemType));
     72 }
     73 
     74 void DOMWindowFileSystem::webkitResolveLocalFileSystemURL(DOMWindow* window, const String& url, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback)
     75 {
     76     if (!window->isCurrentlyDisplayedInFrame())
     77         return;
     78 
     79     Document* document = window->document();
     80     if (!document)
     81         return;
     82 
     83     SecurityOrigin* securityOrigin = document->securityOrigin();
     84     KURL completedURL = document->completeURL(url);
     85     if (!securityOrigin->canAccessFileSystem() || !securityOrigin->canRequest(completedURL)) {
     86         DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SECURITY_ERR));
     87         return;
     88     }
     89 
     90     if (!completedURL.isValid()) {
     91         DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::ENCODING_ERR));
     92         return;
     93     }
     94 
     95     LocalFileSystem::from(document)->resolveURL(document, completedURL, ResolveURICallbacks::create(successCallback, errorCallback, document));
     96 }
     97 
     98 COMPILE_ASSERT(static_cast<int>(DOMWindowFileSystem::TEMPORARY) == static_cast<int>(FileSystemTypeTemporary), enum_mismatch);
     99 COMPILE_ASSERT(static_cast<int>(DOMWindowFileSystem::PERSISTENT) == static_cast<int>(FileSystemTypePersistent), enum_mismatch);
    100 
    101 } // namespace WebCore
    102