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