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      1 /*
      2  * Copyright (C) 2010 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 "V8DirectoryEntrySync.h"
     33 
     34 #if ENABLE(FILE_SYSTEM)
     35 
     36 #include "DirectoryEntrySync.h"
     37 #include "ExceptionCode.h"
     38 #include "V8Binding.h"
     39 #include "V8BindingMacros.h"
     40 #include "V8EntryCallback.h"
     41 #include "V8ErrorCallback.h"
     42 #include "V8FileEntrySync.h"
     43 #include "V8WebKitFlags.h"
     44 #include "V8Proxy.h"
     45 #include <wtf/RefCounted.h>
     46 #include <wtf/RefPtr.h>
     47 
     48 namespace WebCore {
     49 
     50 static bool extractBooleanValue(const v8::Handle<v8::Object>& object, const char* name, ExceptionCode& ec) {
     51     ec = 0;
     52     v8::Local<v8::Value> value = object->Get(v8::String::New(name));
     53     if (!value.IsEmpty() && !isUndefinedOrNull(value)) {
     54         v8::TryCatch block;
     55         bool nativeValue = value->BooleanValue();
     56         if (block.HasCaught()) {
     57             ec = TYPE_MISMATCH_ERR;
     58             return false;
     59         }
     60         return nativeValue;
     61     }
     62     return false;
     63 }
     64 
     65 static PassRefPtr<WebKitFlags> getFlags(const v8::Local<v8::Value>& arg, ExceptionCode& ec)
     66 {
     67     ec = 0;
     68     if (isUndefinedOrNull(arg) || !arg->IsObject())
     69         return 0;
     70     if (V8WebKitFlags::HasInstance(arg))
     71         return V8WebKitFlags::toNative(v8::Handle<v8::Object>::Cast(arg));
     72 
     73     v8::Handle<v8::Object> object;
     74     {
     75         v8::TryCatch block;
     76         object = v8::Handle<v8::Object>::Cast(arg);
     77         if (block.HasCaught()) {
     78             ec = TYPE_MISMATCH_ERR;
     79             return 0;
     80         }
     81     }
     82 
     83     bool isCreate = extractBooleanValue(object, "create", ec);
     84     if (ec)
     85         return 0;
     86     bool isExclusive = extractBooleanValue(object, "exclusive", ec);
     87     if (ec)
     88         return 0;
     89 
     90     RefPtr<WebKitFlags> flags = WebKitFlags::create();
     91     flags->setCreate(isCreate);
     92     flags->setExclusive(isExclusive);
     93 
     94     return flags;
     95 }
     96 
     97 v8::Handle<v8::Value> V8DirectoryEntrySync::getDirectoryCallback(const v8::Arguments& args)
     98 {
     99     INC_STATS("DOM.DirectoryEntrySync.getDirectory");
    100     DirectoryEntrySync* imp = V8DirectoryEntrySync::toNative(args.Holder());
    101     ExceptionCode ec = 0;
    102     STRING_TO_V8PARAMETER_EXCEPTION_BLOCK(V8Parameter<>, path, args[0]);
    103     RefPtr<WebKitFlags> flags = getFlags(args[1], ec);
    104     if (UNLIKELY(ec)) {
    105         V8Proxy::setDOMException(ec);
    106         return v8::Handle<v8::Value>();
    107     }
    108     RefPtr<DirectoryEntrySync> result = imp->getDirectory(path, flags, ec);
    109     if (UNLIKELY(ec)) {
    110         V8Proxy::setDOMException(ec);
    111         return v8::Handle<v8::Value>();
    112     }
    113     return toV8(result.release());
    114 }
    115 
    116 v8::Handle<v8::Value> V8DirectoryEntrySync::getFileCallback(const v8::Arguments& args)
    117 {
    118     INC_STATS("DOM.DirectoryEntrySync.getFile");
    119     DirectoryEntrySync* imp = V8DirectoryEntrySync::toNative(args.Holder());
    120     ExceptionCode ec = 0;
    121     STRING_TO_V8PARAMETER_EXCEPTION_BLOCK(V8Parameter<>, path, args[0]);
    122     RefPtr<WebKitFlags> flags = getFlags(args[1], ec);
    123     if (UNLIKELY(ec)) {
    124         V8Proxy::setDOMException(ec);
    125         return v8::Handle<v8::Value>();
    126     }
    127     RefPtr<FileEntrySync> result = imp->getFile(path, flags, ec);
    128     if (UNLIKELY(ec)) {
    129         V8Proxy::setDOMException(ec);
    130         return v8::Handle<v8::Value>();
    131     }
    132     return toV8(result.release());
    133 }
    134 
    135 
    136 
    137 } // namespace WebCore
    138 
    139 #endif // ENABLE(FILE_SYSTEM)
    140