1 /*
2  *  Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
3  *
4  *  This program is free software: you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation, either version 2 or (at your option)
7  *  version 3 of the License.
8  *
9  *  This program is distributed in the hope that it will be useful,
10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *  GNU General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License
15  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include "CustomData.h"
19 #include "Clock.h"
20 
21 #include "core/Global.h"
22 
23 const QString CustomData::LastModified = QStringLiteral("_LAST_MODIFIED");
24 const QString CustomData::Created = QStringLiteral("_CREATED");
25 const QString CustomData::BrowserKeyPrefix = QStringLiteral("KPXC_BROWSER_");
26 const QString CustomData::BrowserLegacyKeyPrefix = QStringLiteral("Public Key: ");
27 
CustomData(QObject * parent)28 CustomData::CustomData(QObject* parent)
29     : QObject(parent)
30 {
31 }
32 
keys() const33 QList<QString> CustomData::keys() const
34 {
35     return m_data.keys();
36 }
37 
hasKey(const QString & key) const38 bool CustomData::hasKey(const QString& key) const
39 {
40     return m_data.contains(key);
41 }
42 
value(const QString & key) const43 QString CustomData::value(const QString& key) const
44 {
45     return m_data.value(key);
46 }
47 
contains(const QString & key) const48 bool CustomData::contains(const QString& key) const
49 {
50     return m_data.contains(key);
51 }
52 
containsValue(const QString & value) const53 bool CustomData::containsValue(const QString& value) const
54 {
55     return asConst(m_data).values().contains(value);
56 }
57 
set(const QString & key,const QString & value)58 void CustomData::set(const QString& key, const QString& value)
59 {
60     bool addAttribute = !m_data.contains(key);
61     bool changeValue = !addAttribute && (m_data.value(key) != value);
62 
63     if (addAttribute) {
64         emit aboutToBeAdded(key);
65     }
66 
67     if (addAttribute || changeValue) {
68         m_data.insert(key, value);
69         updateLastModified();
70         emit customDataModified();
71     }
72 
73     if (addAttribute) {
74         emit added(key);
75     }
76 }
77 
remove(const QString & key)78 void CustomData::remove(const QString& key)
79 {
80     emit aboutToBeRemoved(key);
81 
82     m_data.remove(key);
83 
84     updateLastModified();
85     emit removed(key);
86     emit customDataModified();
87 }
88 
rename(const QString & oldKey,const QString & newKey)89 void CustomData::rename(const QString& oldKey, const QString& newKey)
90 {
91     const bool containsOldKey = m_data.contains(oldKey);
92     const bool containsNewKey = m_data.contains(newKey);
93     Q_ASSERT(containsOldKey && !containsNewKey);
94     if (!containsOldKey || containsNewKey) {
95         return;
96     }
97 
98     QString data = value(oldKey);
99 
100     emit aboutToRename(oldKey, newKey);
101 
102     m_data.remove(oldKey);
103     m_data.insert(newKey, data);
104 
105     updateLastModified();
106     emit customDataModified();
107     emit renamed(oldKey, newKey);
108 }
109 
copyDataFrom(const CustomData * other)110 void CustomData::copyDataFrom(const CustomData* other)
111 {
112     if (*this == *other) {
113         return;
114     }
115 
116     emit aboutToBeReset();
117 
118     m_data = other->m_data;
119 
120     updateLastModified();
121     emit reset();
122     emit customDataModified();
123 }
124 
getLastModified() const125 QDateTime CustomData::getLastModified() const
126 {
127     if (m_data.contains(LastModified)) {
128         return Clock::parse(m_data.value(LastModified));
129     }
130     return {};
131 }
132 
isProtectedCustomData(const QString & key) const133 bool CustomData::isProtectedCustomData(const QString& key) const
134 {
135     return key.startsWith(CustomData::BrowserKeyPrefix) || key.startsWith(CustomData::Created);
136 }
137 
operator ==(const CustomData & other) const138 bool CustomData::operator==(const CustomData& other) const
139 {
140     return (m_data == other.m_data);
141 }
142 
operator !=(const CustomData & other) const143 bool CustomData::operator!=(const CustomData& other) const
144 {
145     return (m_data != other.m_data);
146 }
147 
clear()148 void CustomData::clear()
149 {
150     emit aboutToBeReset();
151 
152     m_data.clear();
153 
154     emit reset();
155     emit customDataModified();
156 }
157 
isEmpty() const158 bool CustomData::isEmpty() const
159 {
160     return m_data.isEmpty();
161 }
162 
size() const163 int CustomData::size() const
164 {
165     return m_data.size();
166 }
167 
dataSize() const168 int CustomData::dataSize() const
169 {
170     int size = 0;
171 
172     QHashIterator<QString, QString> i(m_data);
173     while (i.hasNext()) {
174         i.next();
175         size += i.key().toUtf8().size() + i.value().toUtf8().size();
176     }
177     return size;
178 }
179 
updateLastModified()180 void CustomData::updateLastModified()
181 {
182     if (m_data.size() == 1 && m_data.contains(LastModified)) {
183         m_data.remove(LastModified);
184         return;
185     }
186 
187     m_data.insert(LastModified, Clock::currentDateTimeUtc().toString());
188 }
189