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 "platform/blob/BlobData.h" 33 34#include "platform/UUID.h" 35#include "platform/blob/BlobRegistry.h" 36#include "platform/text/LineEnding.h" 37#include "wtf/ArrayBuffer.h" 38#include "wtf/ArrayBufferView.h" 39#include "wtf/OwnPtr.h" 40#include "wtf/PassRefPtr.h" 41#include "wtf/RefPtr.h" 42#include "wtf/Vector.h" 43#include "wtf/text/CString.h" 44#include "wtf/text/TextEncoding.h" 45 46namespace blink { 47 48const long long BlobDataItem::toEndOfFile = -1; 49 50RawData::RawData() 51{ 52} 53 54void RawData::detachFromCurrentThread() 55{ 56} 57 58void BlobDataItem::detachFromCurrentThread() 59{ 60 data->detachFromCurrentThread(); 61 path = path.isolatedCopy(); 62 fileSystemURL = fileSystemURL.copy(); 63} 64 65PassOwnPtr<BlobData> BlobData::create() 66{ 67 return adoptPtr(new BlobData()); 68} 69 70void BlobData::detachFromCurrentThread() 71{ 72 m_contentType = m_contentType.isolatedCopy(); 73 for (size_t i = 0; i < m_items.size(); ++i) 74 m_items.at(i).detachFromCurrentThread(); 75} 76 77void BlobData::appendData(PassRefPtr<RawData> data, long long offset, long long length) 78{ 79 m_items.append(BlobDataItem(data, offset, length)); 80} 81 82void BlobData::appendFile(const String& path) 83{ 84 m_items.append(BlobDataItem(path)); 85} 86 87void BlobData::appendFile(const String& path, long long offset, long long length, double expectedModificationTime) 88{ 89 m_items.append(BlobDataItem(path, offset, length, expectedModificationTime)); 90} 91 92void BlobData::appendBlob(PassRefPtr<BlobDataHandle> dataHandle, long long offset, long long length) 93{ 94 m_items.append(BlobDataItem(dataHandle, offset, length)); 95} 96 97void BlobData::appendFileSystemURL(const KURL& url, long long offset, long long length, double expectedModificationTime) 98{ 99 m_items.append(BlobDataItem(url, offset, length, expectedModificationTime)); 100} 101 102void BlobData::appendText(const String& text, bool doNormalizeLineEndingsToNative) 103{ 104 RefPtr<RawData> data = RawData::create(); 105 Vector<char>* buffer = data->mutableData(); 106 107 CString utf8Text = UTF8Encoding().normalizeAndEncode(text, WTF::EntitiesForUnencodables); 108 if (doNormalizeLineEndingsToNative) { 109 normalizeLineEndingsToNative(utf8Text, *buffer); 110 } else { 111 buffer->append(utf8Text.data(), utf8Text.length()); 112 } 113 114 m_items.append(BlobDataItem(data.release())); 115} 116 117void BlobData::appendBytes(const void* bytes, size_t length) 118{ 119 RefPtr<RawData> data = RawData::create(); 120 Vector<char>* buffer = data->mutableData(); 121 buffer->append(static_cast<const char *>(bytes), length); 122 m_items.append(BlobDataItem(data.release())); 123} 124 125void BlobData::appendArrayBuffer(const ArrayBuffer* arrayBuffer) 126{ 127 appendBytes(arrayBuffer->data(), arrayBuffer->byteLength()); 128} 129 130void BlobData::appendArrayBufferView(const ArrayBufferView* arrayBufferView) 131{ 132 appendBytes(arrayBufferView->baseAddress(), arrayBufferView->byteLength()); 133} 134 135void BlobData::swapItems(BlobDataItemList& items) 136{ 137 m_items.swap(items); 138} 139 140long long BlobData::length() const 141{ 142 long long length = 0; 143 144 for (Vector<BlobDataItem>::const_iterator it = m_items.begin(); it != m_items.end(); ++it) { 145 const BlobDataItem& item = *it; 146 if (item.length != BlobDataItem::toEndOfFile) { 147 ASSERT(item.length >= 0); 148 length += item.length; 149 continue; 150 } 151 152 switch (item.type) { 153 case BlobDataItem::Data: 154 length += item.data->length(); 155 break; 156 case BlobDataItem::File: 157 case BlobDataItem::Blob: 158 case BlobDataItem::FileSystemURL: 159 return BlobDataItem::toEndOfFile; 160 } 161 } 162 return length; 163} 164 165BlobDataHandle::BlobDataHandle() 166 : m_uuid(createCanonicalUUIDString()) 167 , m_size(0) 168{ 169 BlobRegistry::registerBlobData(m_uuid, BlobData::create()); 170} 171 172BlobDataHandle::BlobDataHandle(PassOwnPtr<BlobData> data, long long size) 173 : m_uuid(createCanonicalUUIDString()) 174 , m_type(data->contentType().isolatedCopy()) 175 , m_size(size) 176{ 177 BlobRegistry::registerBlobData(m_uuid, data); 178} 179 180BlobDataHandle::BlobDataHandle(const String& uuid, const String& type, long long size) 181 : m_uuid(uuid.isolatedCopy()) 182 , m_type(type.isolatedCopy()) 183 , m_size(size) 184{ 185 BlobRegistry::addBlobDataRef(m_uuid); 186} 187 188BlobDataHandle::~BlobDataHandle() 189{ 190 BlobRegistry::removeBlobDataRef(m_uuid); 191} 192 193} // namespace blink 194