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 "BlobBuilder.h"
33
34#include "Blob.h"
35#include "TextEncoding.h"
36#include <JavaScriptCore/ArrayBuffer.h>
37#include <JavaScriptCore/ArrayBufferView.h>
38#include <wtf/text/CString.h>
39#include <wtf/text/LineEnding.h>
40
41namespace WebCore {
42
43BlobBuilder::BlobBuilder(BlobLineEndings endings)
44 : m_endings(endings)
45{
46}
47
48void BlobBuilder::append(RefPtr<ArrayBuffer>&& arrayBuffer)
49{
50 if (!arrayBuffer)
51 return;
52 m_appendableData.append(static_cast<const uint8_t*>(arrayBuffer->data()), arrayBuffer->byteLength());
53}
54
55void BlobBuilder::append(RefPtr<ArrayBufferView>&& arrayBufferView)
56{
57 if (!arrayBufferView)
58 return;
59 m_appendableData.append(static_cast<const uint8_t*>(arrayBufferView->baseAddress()), arrayBufferView->byteLength());
60}
61
62void BlobBuilder::append(RefPtr<Blob>&& blob)
63{
64 if (!blob)
65 return;
66 if (!m_appendableData.isEmpty())
67 m_items.append(BlobPart(WTFMove(m_appendableData)));
68 m_items.append(BlobPart(blob->url()));
69}
70
71void BlobBuilder::append(const String& text)
72{
73 auto bytes = UTF8Encoding().encode(text, UnencodableHandling::Entities);
74
75 if (m_endings == BlobLineEndings::Native)
76 bytes = normalizeLineEndingsToNative(WTFMove(bytes));
77
78 if (m_appendableData.isEmpty())
79 m_appendableData = WTFMove(bytes);
80 else {
81 // FIXME: Would it be better to move multiple vectors into m_items instead of merging them into one?
82 m_appendableData.appendVector(bytes);
83 }
84}
85
86Vector<BlobPart> BlobBuilder::finalize()
87{
88 if (!m_appendableData.isEmpty())
89 m_items.append(BlobPart(WTFMove(m_appendableData)));
90 return WTFMove(m_items);
91}
92
93} // namespace WebCore
94