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 "DOMFormData.h"
33
34#include "HTMLFormControlElement.h"
35#include "HTMLFormElement.h"
36#include <wtf/Optional.h>
37
38namespace WebCore {
39
40DOMFormData::DOMFormData(const TextEncoding& encoding)
41 : m_encoding(encoding)
42{
43}
44
45DOMFormData::DOMFormData(HTMLFormElement* form)
46 : m_encoding(UTF8Encoding())
47{
48 if (!form)
49 return;
50
51 for (auto& element : form->copyAssociatedElementsVector()) {
52 if (!element->asHTMLElement().isDisabledFormControl())
53 element->appendFormData(*this, true);
54 }
55}
56
57// https://xhr.spec.whatwg.org/#create-an-entry
58auto DOMFormData::createFileEntry(const String& name, Blob& blob, const String& filename) -> Item
59{
60 if (!blob.isFile())
61 return { name, File::create(blob, filename.isNull() ? "blob"_s : filename) };
62
63 if (!filename.isNull())
64 return { name, File::create(downcast<File>(blob), filename) };
65
66 return { name, RefPtr<File> { &downcast<File>(blob) } };
67}
68
69void DOMFormData::append(const String& name, const String& value)
70{
71 m_items.append({ name, value });
72}
73
74void DOMFormData::append(const String& name, Blob& blob, const String& filename)
75{
76 m_items.append(createFileEntry(name, blob, filename));
77}
78
79void DOMFormData::remove(const String& name)
80{
81 m_items.removeAllMatching([&name] (const auto& item) {
82 return item.name == name;
83 });
84}
85
86auto DOMFormData::get(const String& name) -> Optional<FormDataEntryValue>
87{
88 for (auto& item : m_items) {
89 if (item.name == name)
90 return item.data;
91 }
92
93 return WTF::nullopt;
94}
95
96auto DOMFormData::getAll(const String& name) -> Vector<FormDataEntryValue>
97{
98 Vector<FormDataEntryValue> result;
99
100 for (auto& item : m_items) {
101 if (item.name == name)
102 result.append(item.data);
103 }
104
105 return result;
106}
107
108bool DOMFormData::has(const String& name)
109{
110 for (auto& item : m_items) {
111 if (item.name == name)
112 return true;
113 }
114
115 return false;
116}
117
118void DOMFormData::set(const String& name, const String& value)
119{
120 set(name, { name, value });
121}
122
123void DOMFormData::set(const String& name, Blob& blob, const String& filename)
124{
125 set(name, createFileEntry(name, blob, filename));
126}
127
128void DOMFormData::set(const String& name, Item&& item)
129{
130 Optional<size_t> initialMatchLocation;
131
132 // Find location of the first item with a matching name.
133 for (size_t i = 0; i < m_items.size(); ++i) {
134 if (name == m_items[i].name) {
135 initialMatchLocation = i;
136 break;
137 }
138 }
139
140 if (initialMatchLocation) {
141 m_items[*initialMatchLocation] = WTFMove(item);
142
143 m_items.removeAllMatching([&name] (const auto& item) {
144 return item.name == name;
145 }, *initialMatchLocation + 1);
146 return;
147 }
148
149 m_items.append(WTFMove(item));
150}
151
152DOMFormData::Iterator::Iterator(DOMFormData& target)
153 : m_target(target)
154{
155}
156
157Optional<KeyValuePair<String, DOMFormData::FormDataEntryValue>> DOMFormData::Iterator::next()
158{
159 auto& items = m_target->items();
160 if (m_index >= items.size())
161 return WTF::nullopt;
162
163 auto& item = items[m_index++];
164 return makeKeyValuePair(item.name, item.data);
165}
166
167} // namespace WebCore
168