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 "V8File.h"
33
34#include "RuntimeEnabledFeatures.h"
35#include "bindings/v8/ExceptionState.h"
36#include "bindings/v8/custom/V8BlobCustomHelpers.h"
37#include "core/fileapi/BlobBuilder.h"
38
39namespace WebCore {
40
41void V8File::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
42{
43    ExceptionState exceptionState(ExceptionState::ConstructionContext, "File", info.Holder(), info.GetIsolate());
44
45    if (!RuntimeEnabledFeatures::fileConstructorEnabled()) {
46        exceptionState.throwTypeError("Illegal constructor");
47        exceptionState.throwIfNeeded();
48        return;
49    }
50
51    if (info.Length() < 2) {
52        exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(2, info.Length()));
53        exceptionState.throwIfNeeded();
54        return;
55    }
56
57    uint32_t length = 0;
58    if (info[0]->IsArray()) {
59        length = v8::Local<v8::Array>::Cast(info[0])->Length();
60    } else {
61        const int sequenceArgumentIndex = 0;
62        if (toV8Sequence(info[sequenceArgumentIndex], length, info.GetIsolate()).IsEmpty()) {
63            exceptionState.throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(sequenceArgumentIndex + 1));
64            exceptionState.throwIfNeeded();
65            return;
66        }
67    }
68
69    V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, fileName, info[1]);
70
71    V8BlobCustomHelpers::ParsedProperties properties(true);
72    if (info.Length() > 2) {
73        if (!info[2]->IsObject()) {
74            exceptionState.throwTypeError("The 3rd argument is not of type Object.");
75            exceptionState.throwIfNeeded();
76            return;
77        }
78
79        if (!properties.parseBlobPropertyBag(info[2], "File", exceptionState, info.GetIsolate())) {
80            exceptionState.throwIfNeeded();
81            return;
82        }
83    } else {
84        properties.setDefaultLastModified();
85    }
86
87    BlobBuilder blobBuilder;
88    v8::Local<v8::Object> blobParts = v8::Local<v8::Object>::Cast(info[0]);
89    if (!V8BlobCustomHelpers::processBlobParts(blobParts, length, properties.endings(), blobBuilder, info.GetIsolate()))
90        return;
91
92    RefPtr<File> file = blobBuilder.createFile(properties.contentType(), fileName, properties.lastModified());
93    v8SetReturnValue(info, file.release());
94}
95
96void V8File::lastModifiedDateAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
97{
98    // The auto-generated getters return null when the method in the underlying
99    // implementation returns NaN. The File API says we should return the
100    // current time when the last modification time is unknown.
101    // Section 7.2 of the File API spec. http://dev.w3.org/2006/webapi/FileAPI/
102
103    File* file = V8File::toNative(info.Holder());
104    double lastModified = file->lastModifiedDate();
105    if (!isValidFileTime(lastModified))
106        lastModified = currentTimeMS();
107
108    // lastModifiedDate returns a Date instance.
109    // http://www.w3.org/TR/FileAPI/#file-attrs
110    v8SetReturnValue(info, v8::Date::New(info.GetIsolate(), lastModified));
111}
112
113void V8File::lastModifiedAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
114{
115    File* file = V8File::toNative(info.Holder());
116    double lastModified = file->lastModifiedDate();
117    if (!isValidFileTime(lastModified))
118        lastModified = currentTimeMS();
119
120    // lastModified returns a number, not a Date instance.
121    // http://dev.w3.org/2006/webapi/FileAPI/#file-attrs
122    v8SetReturnValue(info, floor(lastModified));
123}
124
125} // namespace WebCore
126