1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
<?php
namespace dokuwiki\Feed;
use Diff;
use dokuwiki\ChangeLog\PageChangeLog;
use TableDiffFormatter;
use UnifiedDiffFormatter;
/**
* Accept more or less arbitrary data to represent a page and provide lazy loading accessors
* to all the data we need for feed generation.
*/
class FeedPageProcessor extends FeedItemProcessor
{
/** @var array[] metadata */
protected $meta;
// region data processors
/** @inheritdoc */
public function getURL($linkto)
{
switch ($linkto) {
case 'page':
$opt = ['rev' => $this->getRev()];
break;
case 'rev':
$opt = ['rev' => $this->getRev(), 'do' => 'revisions'];
break;
case 'current':
$opt = [];
break;
case 'diff':
default:
$opt = ['rev' => $this->getRev(), 'do' => 'diff'];
}
return wl($this->getId(), $opt, true, '&');
}
/** @inheritdoc */
public function getBody($content)
{
global $lang;
switch ($content) {
case 'diff':
$diff = $this->getDiff();
// note: diff output must be escaped, UnifiedDiffFormatter provides plain text
$udf = new UnifiedDiffFormatter();
return "<pre>\n" . hsc($udf->format($diff)) . "\n</pre>";
case 'htmldiff':
$diff = $this->getDiff();
// note: no need to escape diff output, TableDiffFormatter provides 'safe' html
$tdf = new TableDiffFormatter();
$content = '<table>';
$content .= '<tr><th colspan="2" width="50%">' . dformat($this->getPrev()) . '</th>';
$content .= '<th colspan="2" width="50%">' . $lang['current'] . '</th></tr>';
$content .= $tdf->format($diff);
$content .= '</table>';
return $content;
case 'html':
if ($this->isExisting()) {
$html = p_wiki_xhtml($this->getId(), '', false);
} else {
$html = p_wiki_xhtml($this->getId(), $this->getRev(), false);
}
return $this->cleanHTML($html);
case 'abstract':
default:
return $this->getAbstract();
}
}
/** @inheritdoc */
public function getCategory()
{
$meta = $this->getMetaData();
return (array)($meta['subject'] ?? (string)getNS($this->getId()));
}
// endregion
// region data accessors
/**
* Get the page abstract
*
* @return string
*/
public function getAbstract()
{
if (!isset($this->data['abstract'])) {
$meta = $this->getMetaData();
if (isset($meta['description']['abstract'])) {
$this->data['abstract'] = (string)$meta['description']['abstract'];
} else {
$this->data['abstract'] = '';
}
}
return $this->data['abstract'];
}
/** @inheritdoc */
public function getRev()
{
$rev = parent::getRev();
if ($rev) return $rev;
if (page_exists($this->id)) {
$this->data['rev'] = filemtime(wikiFN($this->id));
$this->data['exists'] = true;
} else {
$this->loadRevisions();
}
return $this->data['rev'];
}
/**
* Get the previous revision timestamp of this page
*
* @return int|null The previous revision or null if there is none
*/
public function getPrev()
{
if ($this->data['prev'] ?? 0) return $this->data['prev'];
$this->loadRevisions();
return $this->data['prev'];
}
/**
* Does this page exist?
*
* @return bool
*/
public function isExisting()
{
if (!isset($this->data['exists'])) {
$this->data['exists'] = page_exists($this->id);
}
return $this->data['exists'];
}
/**
* Get the title of this page
*
* @return string
*/
public function getTitle()
{
global $conf;
if (!isset($this->data['title'])) {
if ($conf['useheading']) {
$this->data['title'] = p_get_first_heading($this->id);
} else {
$this->data['title'] = noNS($this->id);
}
}
return $this->data['title'];
}
// endregion
/**
* Get the metadata of this page
*
* @return array[]
*/
protected function getMetaData()
{
if (!isset($this->meta)) {
$this->meta = (array)p_get_metadata($this->id);
}
return $this->meta;
}
/**
* Load the current and previous revision from the changelog
* @return void
*/
protected function loadRevisions()
{
$changelog = new PageChangeLog($this->id);
$revs = $changelog->getRevisions(-1, 2);
if (!isset($this->data['rev'])) {
// prefer an already set date, only set if missing
// it should usally not happen that neither is available
$this->data['rev'] = $revs[0] ?? 0;
}
// a previous revision might not exist
$this->data['prev'] = $revs[1] ?? null;
}
/**
* Get a diff between this and the previous revision
*
* @return Diff
*/
protected function getDiff()
{
$prev = $this->getPrev();
if ($prev) {
return new Diff(
explode("\n", rawWiki($this->getId(), $prev)),
explode("\n", rawWiki($this->getId(), ''))
);
}
return new Diff([''], explode("\n", rawWiki($this->getId(), '')));
}
}
|
