~ubuntu-branches/ubuntu/quantal/mediawiki/quantal
» Revision
32
: .pc/fix_invalid_sql.patch/includes/Title.php
« back to all changes in this revision
Viewing changes to .pc/fix_invalid_sql.patch/includes/Title.php
- browse files at revision 32
- compare with another revision
- download diff
- download tarball
- view history from revision 32
- Committer: Package Import Robot
- Author(s): Jonathan Wiltshire, Thorsten Glaser, Jonathan Wiltshire
- Date: 2011-11-30 22:42:52 UTC
- mfrom: (16.1.12 sid)
- Revision ID: package-import@ubuntu.com-20111130224252-zhag0n99qzf8jc7x
Tags: 1:1.15.5-4
[ Thorsten Glaser ]
* debian/patches/fix_invalid_sql.patch: new (Closes: #615983)
[ Jonathan Wiltshire ]
* Security fixes from upstream (Closes: #650434):
CVE-2011-4360 - page titles on private wikis could be exposed
bypassing different page ids to index.php
CVE-2011-4361 - action=ajax requests were dispatched to the
relevant function without any read permission checks being done
* debian/patches/fix_invalid_sql.patch: new (Closes: #615983)
[ Jonathan Wiltshire ]
* Security fixes from upstream (Closes: #650434):
CVE-2011-4360 - page titles on private wikis could be exposed
bypassing different page ids to index.php
CVE-2011-4361 - action=ajax requests were dispatched to the
relevant function without any read permission checks being done
- files added:
- .pc/CVE-2011-4360.patch
- .pc/CVE-2011-4360.patch/includes
- .pc/CVE-2011-4361.patch
- .pc/CVE-2011-4361.patch/includes
- .pc/fix_invalid_sql.patch
- .pc/fix_invalid_sql.patch/includes
- files modified:
- .pc/applied-patches
added
removed
.pc/fix_invalid_sql.patch/includes/Title.php
1
<?php
2
/**
3
* See title.txt
4
* @file
5
*/
6
7
if ( !class_exists( 'UtfNormal' ) ) {
8
require_once( dirname(__FILE__) . '/normal/UtfNormal.php' );
9
}
10
11
define ( 'GAID_FOR_UPDATE', 1 );
12
13
14
/**
15
* Constants for pr_cascade bitfield
16
*/
17
define( 'CASCADE', 1 );
18
19
/**
20
* Represents a title within MediaWiki.
21
* Optionally may contain an interwiki designation or namespace.
22
* @note This class can fetch various kinds of data from the database;
23
* however, it does so inefficiently.
24
*/
25
class Title {
26
/** @name Static cache variables */
27
//@{
28
static private $titleCache=array();
29
static private $interwikiCache=array();
30
//@}
31
32
/**
33
* Title::newFromText maintains a cache to avoid expensive re-normalization of
34
* commonly used titles. On a batch operation this can become a memory leak
35
* if not bounded. After hitting this many titles reset the cache.
36
*/
37
const CACHE_MAX = 1000;
38
39
40
/**
41
* @name Private member variables
42
* Please use the accessor functions instead.
43
* @private
44
*/
45
//@{
46
47
var $mTextform = ''; ///< Text form (spaces not underscores) of the main part
48
var $mUrlform = ''; ///< URL-encoded form of the main part
49
var $mDbkeyform = ''; ///< Main part with underscores
50
var $mUserCaseDBKey; ///< DB key with the initial letter in the case specified by the user
51
var $mNamespace = NS_MAIN; ///< Namespace index, i.e. one of the NS_xxxx constants
52
var $mInterwiki = ''; ///< Interwiki prefix (or null string)
53
var $mFragment; ///< Title fragment (i.e. the bit after the #)
54
var $mArticleID = -1; ///< Article ID, fetched from the link cache on demand
55
var $mLatestID = false; ///< ID of most recent revision
56
var $mRestrictions = array(); ///< Array of groups allowed to edit this article
57
var $mOldRestrictions = false;
58
var $mCascadeRestriction; ///< Cascade restrictions on this page to included templates and images?
59
var $mRestrictionsExpiry = array(); ///< When do the restrictions on this page expire?
60
var $mHasCascadingRestrictions; ///< Are cascading restrictions in effect on this page?
61
var $mCascadeSources; ///< Where are the cascading restrictions coming from on this page?
62
var $mRestrictionsLoaded = false; ///< Boolean for initialisation on demand
63
var $mPrefixedText; ///< Text form including namespace/interwiki, initialised on demand
64
# Don't change the following default, NS_MAIN is hardcoded in several
65
# places. See bug 696.
66
var $mDefaultNamespace = NS_MAIN; ///< Namespace index when there is no namespace
67
# Zero except in {{transclusion}} tags
68
var $mWatched = null; ///< Is $wgUser watching this page? null if unfilled, accessed through userIsWatching()
69
var $mLength = -1; ///< The page length, 0 for special pages
70
var $mRedirect = null; ///< Is the article at this title a redirect?
71
var $mNotificationTimestamp = array(); ///< Associative array of user ID -> timestamp/false
72
var $mBacklinkCache = null; ///< Cache of links to this title
73
//@}
74
75
76
/**
77
* Constructor
78
* @private
79
*/
80
/* private */ function __construct() {}
81
82
/**
83
* Create a new Title from a prefixed DB key
84
* @param $key \type{\string} The database key, which has underscores
85
* instead of spaces, possibly including namespace and
86
* interwiki prefixes
87
* @return \type{Title} the new object, or NULL on an error
88
*/
89
public static function newFromDBkey( $key ) {
90
$t = new Title();
91
$t->mDbkeyform = $key;
92
if( $t->secureAndSplit() )
93
return $t;
94
else
95
return NULL;
96
}
97
98
/**
99
* Create a new Title from text, such as what one would find in a link. De-
100
* codes any HTML entities in the text.
101
*
102
* @param $text string The link text; spaces, prefixes, and an
103
* initial ':' indicating the main namespace are accepted.
104
* @param $defaultNamespace int The namespace to use if none is speci-
105
* fied by a prefix. If you want to force a specific namespace even if
106
* $text might begin with a namespace prefix, use makeTitle() or
107
* makeTitleSafe().
108
* @return Title The new object, or null on an error.
109
*/
110
public static function newFromText( $text, $defaultNamespace = NS_MAIN ) {
111
if( is_object( $text ) ) {
112
throw new MWException( 'Title::newFromText given an object' );
113
}
114
115
/**
116
* Wiki pages often contain multiple links to the same page.
117
* Title normalization and parsing can become expensive on
118
* pages with many links, so we can save a little time by
119
* caching them.
120
*
121
* In theory these are value objects and won't get changed...
122
*/
123
if( $defaultNamespace == NS_MAIN && isset( Title::$titleCache[$text] ) ) {
124
return Title::$titleCache[$text];
125
}
126
127
/**
128
* Convert things like é ā or 〗 into real text...
129
*/
130
$filteredText = Sanitizer::decodeCharReferences( $text );
131
132
$t = new Title();
133
$t->mDbkeyform = str_replace( ' ', '_', $filteredText );
134
$t->mDefaultNamespace = $defaultNamespace;
135
136
static $cachedcount = 0 ;
137
if( $t->secureAndSplit() ) {
138
if( $defaultNamespace == NS_MAIN ) {
139
if( $cachedcount >= self::CACHE_MAX ) {
140
# Avoid memory leaks on mass operations...
141
Title::$titleCache = array();
142
$cachedcount=0;
143
}
144
$cachedcount++;
145
Title::$titleCache[$text] =& $t;
146
}
147
return $t;
148
} else {
149
$ret = NULL;
150
return $ret;
151
}
152
}
153
154
/**
155
* Create a new Title from URL-encoded text. Ensures that
156
* the given title's length does not exceed the maximum.
157
* @param $url \type{\string} the title, as might be taken from a URL
158
* @return \type{Title} the new object, or NULL on an error
159
*/
160
public static function newFromURL( $url ) {
161
global $wgLegalTitleChars;
162
$t = new Title();
163
164
# For compatibility with old buggy URLs. "+" is usually not valid in titles,
165
# but some URLs used it as a space replacement and they still come
166
# from some external search tools.
167
if ( strpos( $wgLegalTitleChars, '+' ) === false ) {
168
$url = str_replace( '+', ' ', $url );
169
}
170
171
$t->mDbkeyform = str_replace( ' ', '_', $url );
172
if( $t->secureAndSplit() ) {
173
return $t;
174
} else {
175
return NULL;
176
}
177
}
178
179
/**
180
* Create a new Title from an article ID
181
*
182
* @todo This is inefficiently implemented, the page row is requested
183
* but not used for anything else
184
*
185
* @param $id \type{\int} the page_id corresponding to the Title to create
186
* @param $flags \type{\int} use GAID_FOR_UPDATE to use master
187
* @return \type{Title} the new object, or NULL on an error
188
*/
189
public static function newFromID( $id, $flags = 0 ) {
190
$fname = 'Title::newFromID';
191
$db = ($flags & GAID_FOR_UPDATE) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_SLAVE );
192
$row = $db->selectRow( 'page', array( 'page_namespace', 'page_title' ),
193
array( 'page_id' => $id ), $fname );
194
if ( $row !== false ) {
195
$title = Title::makeTitle( $row->page_namespace, $row->page_title );
196
} else {
197
$title = NULL;
198
}
199
return $title;
200
}
201
202
/**
203
* Make an array of titles from an array of IDs
204
* @param $ids \type{\arrayof{\int}} Array of IDs
205
* @return \type{\arrayof{Title}} Array of Titles
206
*/
207
public static function newFromIDs( $ids ) {
208
if ( !count( $ids ) ) {
209
return array();
210
}
211
$dbr = wfGetDB( DB_SLAVE );
212
$res = $dbr->select( 'page', array( 'page_namespace', 'page_title' ),
213
'page_id IN (' . $dbr->makeList( $ids ) . ')', __METHOD__ );
214
215
$titles = array();
216
foreach( $res as $row ) {
217
$titles[] = Title::makeTitle( $row->page_namespace, $row->page_title );
218
}
219
return $titles;
220
}
221
222
/**
223
* Make a Title object from a DB row
224
* @param $row \type{Row} (needs at least page_title,page_namespace)
225
* @return \type{Title} corresponding Title
226
*/
227
public static function newFromRow( $row ) {
228
$t = self::makeTitle( $row->page_namespace, $row->page_title );
229
230
$t->mArticleID = isset($row->page_id) ? intval($row->page_id) : -1;
231
$t->mLength = isset($row->page_len) ? intval($row->page_len) : -1;
232
$t->mRedirect = isset($row->page_is_redirect) ? (bool)$row->page_is_redirect : NULL;
233
$t->mLatestID = isset($row->page_latest) ? $row->page_latest : false;
234
235
return $t;
236
}
237
238
/**
239
* Create a new Title from a namespace index and a DB key.
240
* It's assumed that $ns and $title are *valid*, for instance when
241
* they came directly from the database or a special page name.
242
* For convenience, spaces are converted to underscores so that
243
* eg user_text fields can be used directly.
244
*
245
* @param $ns \type{\int} the namespace of the article
246
* @param $title \type{\string} the unprefixed database key form
247
* @param $fragment \type{\string} The link fragment (after the "#")
248
* @return \type{Title} the new object
249
*/
250
public static function &makeTitle( $ns, $title, $fragment = '' ) {
251
$t = new Title();
252
$t->mInterwiki = '';
253
$t->mFragment = $fragment;
254
$t->mNamespace = $ns = intval( $ns );
255
$t->mDbkeyform = str_replace( ' ', '_', $title );
256
$t->mArticleID = ( $ns >= 0 ) ? -1 : 0;
257
$t->mUrlform = wfUrlencode( $t->mDbkeyform );
258
$t->mTextform = str_replace( '_', ' ', $title );
259
return $t;
260
}
261
262
/**
263
* Create a new Title from a namespace index and a DB key.
264
* The parameters will be checked for validity, which is a bit slower
265
* than makeTitle() but safer for user-provided data.
266
*
267
* @param $ns \type{\int} the namespace of the article
268
* @param $title \type{\string} the database key form
269
* @param $fragment \type{\string} The link fragment (after the "#")
270
* @return \type{Title} the new object, or NULL on an error
271
*/
272
public static function makeTitleSafe( $ns, $title, $fragment = '' ) {
273
$t = new Title();
274
$t->mDbkeyform = Title::makeName( $ns, $title, $fragment );
275
if( $t->secureAndSplit() ) {
276
return $t;
277
} else {
278
return NULL;
279
}
280
}
281
282
/**
283
* Create a new Title for the Main Page
284
* @return \type{Title} the new object
285
*/
286
public static function newMainPage() {
287
$title = Title::newFromText( wfMsgForContent( 'mainpage' ) );
288
// Don't give fatal errors if the message is broken
289
if ( !$title ) {
290
$title = Title::newFromText( 'Main Page' );
291
}
292
return $title;
293
}
294
295
/**
296
* Extract a redirect destination from a string and return the
297
* Title, or null if the text doesn't contain a valid redirect
298
* This will only return the very next target, useful for
299
* the redirect table and other checks that don't need full recursion
300
*
301
* @param $text \type{\string} Text with possible redirect
302
* @return \type{Title} The corresponding Title
303
*/
304
public static function newFromRedirect( $text ) {
305
return self::newFromRedirectInternal( $text );
306
}
307
308
/**
309
* Extract a redirect destination from a string and return the
310
* Title, or null if the text doesn't contain a valid redirect
311
* This will recurse down $wgMaxRedirects times or until a non-redirect target is hit
312
* in order to provide (hopefully) the Title of the final destination instead of another redirect
313
*
314
* @param $text \type{\string} Text with possible redirect
315
* @return \type{Title} The corresponding Title
316
*/
317
public static function newFromRedirectRecurse( $text ) {
318
$titles = self::newFromRedirectArray( $text );
319
return $titles ? array_pop( $titles ) : null;
320
}
321
322
/**
323
* Extract a redirect destination from a string and return an
324
* array of Titles, or null if the text doesn't contain a valid redirect
325
* The last element in the array is the final destination after all redirects
326
* have been resolved (up to $wgMaxRedirects times)
327
*
328
* @param $text \type{\string} Text with possible redirect
329
* @return \type{\array} Array of Titles, with the destination last
330
*/
331
public static function newFromRedirectArray( $text ) {
332
global $wgMaxRedirects;
333
// are redirects disabled?
334
if( $wgMaxRedirects < 1 )
335
return null;
336
$title = self::newFromRedirectInternal( $text );
337
if( is_null( $title ) )
338
return null;
339
// recursive check to follow double redirects
340
$recurse = $wgMaxRedirects;
341
$titles = array( $title );
342
while( --$recurse > 0 ) {
343
if( $title->isRedirect() ) {
344
$article = new Article( $title, 0 );
345
$newtitle = $article->getRedirectTarget();
346
} else {
347
break;
348
}
349
// Redirects to some special pages are not permitted
350
if( $newtitle instanceOf Title && $newtitle->isValidRedirectTarget() ) {
351
// the new title passes the checks, so make that our current title so that further recursion can be checked
352
$title = $newtitle;
353
$titles[] = $newtitle;
354
} else {
355
break;
356
}
357
}
358
return $titles;
359
}
360
361
/**
362
* Really extract the redirect destination
363
* Do not call this function directly, use one of the newFromRedirect* functions above
364
*
365
* @param $text \type{\string} Text with possible redirect
366
* @return \type{Title} The corresponding Title
367
*/
368
protected static function newFromRedirectInternal( $text ) {
369
$redir = MagicWord::get( 'redirect' );
370
$text = trim($text);
371
if( $redir->matchStartAndRemove( $text ) ) {
372
// Extract the first link and see if it's usable
373
// Ensure that it really does come directly after #REDIRECT
374
// Some older redirects included a colon, so don't freak about that!
375
$m = array();
376
if( preg_match( '!^\s*:?\s*\[{2}(.*?)(?:\|.*?)?\]{2}!', $text, $m ) ) {
377
// Strip preceding colon used to "escape" categories, etc.
378
// and URL-decode links
379
if( strpos( $m[1], '%' ) !== false ) {
380
// Match behavior of inline link parsing here;
381
// don't interpret + as " " most of the time!
382
// It might be safe to just use rawurldecode instead, though.
383
$m[1] = urldecode( ltrim( $m[1], ':' ) );
384
}
385
$title = Title::newFromText( $m[1] );
386
// If the title is a redirect to bad special pages or is invalid, return null
387
if( !$title instanceof Title || !$title->isValidRedirectTarget() ) {
388
return null;
389
}
390
return $title;
391
}
392
}
393
return null;
394
}
395
396
#----------------------------------------------------------------------------
397
# Static functions
398
#----------------------------------------------------------------------------
399
400
/**
401
* Get the prefixed DB key associated with an ID
402
* @param $id \type{\int} the page_id of the article
403
* @return \type{Title} an object representing the article, or NULL
404
* if no such article was found
405
*/
406
public static function nameOf( $id ) {
407
$dbr = wfGetDB( DB_SLAVE );
408
409
$s = $dbr->selectRow( 'page',
410
array( 'page_namespace','page_title' ),
411
array( 'page_id' => $id ),
412
__METHOD__ );
413
if ( $s === false ) { return NULL; }
414
415
$n = self::makeName( $s->page_namespace, $s->page_title );
416
return $n;
417
}
418
419
/**
420
* Get a regex character class describing the legal characters in a link
421
* @return \type{\string} the list of characters, not delimited
422
*/
423
public static function legalChars() {
424
global $wgLegalTitleChars;
425
return $wgLegalTitleChars;
426
}
427
428
/**
429
* Get a string representation of a title suitable for
430
* including in a search index
431
*
432
* @param $ns \type{\int} a namespace index
433
* @param $title \type{\string} text-form main part
434
* @return \type{\string} a stripped-down title string ready for the
435
* search index
436
*/
437
public static function indexTitle( $ns, $title ) {
438
global $wgContLang;
439
440
$lc = SearchEngine::legalSearchChars() . '&#;';
441
$t = $wgContLang->stripForSearch( $title );
442
$t = preg_replace( "/[^{$lc}]+/", ' ', $t );
443
$t = $wgContLang->lc( $t );
444
445
# Handle 's, s'
446
$t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
447
$t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
448
449
$t = preg_replace( "/\\s+/", ' ', $t );
450
451
if ( $ns == NS_FILE ) {
452
$t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
453
}
454
return trim( $t );
455
}
456
457
/*
458
* Make a prefixed DB key from a DB key and a namespace index
459
* @param $ns \type{\int} numerical representation of the namespace
460
* @param $title \type{\string} the DB key form the title
461
* @param $fragment \type{\string} The link fragment (after the "#")
462
* @return \type{\string} the prefixed form of the title
463
*/
464
public static function makeName( $ns, $title, $fragment = '' ) {
465
global $wgContLang;
466
467
$namespace = $wgContLang->getNsText( $ns );
468
$name = $namespace == '' ? $title : "$namespace:$title";
469
if ( strval( $fragment ) != '' ) {
470
$name .= '#' . $fragment;
471
}
472
return $name;
473
}
474
475
/**
476
* Returns the URL associated with an interwiki prefix
477
* @param $key \type{\string} the interwiki prefix (e.g. "MeatBall")
478
* @return \type{\string} the associated URL, containing "$1",
479
* which should be replaced by an article title
480
* @static (arguably)
481
* @deprecated See Interwiki class
482
*/
483
public function getInterwikiLink( $key ) {
484
return Interwiki::fetch( $key )->getURL( );
485
}
486
487
/**
488
* Determine whether the object refers to a page within
489
* this project.
490
*
491
* @return \type{\bool} TRUE if this is an in-project interwiki link
492
* or a wikilink, FALSE otherwise
493
*/
494
public function isLocal() {
495
if ( $this->mInterwiki != '' ) {
496
return Interwiki::fetch( $this->mInterwiki )->isLocal();
497
} else {
498
return true;
499
}
500
}
501
502
/**
503
* Determine whether the object refers to a page within
504
* this project and is transcludable.
505
*
506
* @return \type{\bool} TRUE if this is transcludable
507
*/
508
public function isTrans() {
509
if ($this->mInterwiki == '')
510
return false;
511
512
return Interwiki::fetch( $this->mInterwiki )->isTranscludable();
513
}
514
515
/**
516
* Escape a text fragment, say from a link, for a URL
517
*/
518
static function escapeFragmentForURL( $fragment ) {
519
global $wgEnforceHtmlIds;
520
# Note that we don't urlencode the fragment. urlencoded Unicode
521
# fragments appear not to work in IE (at least up to 7) or in at least
522
# one version of Opera 9.x. The W3C validator, for one, doesn't seem
523
# to care if they aren't encoded.
524
return Sanitizer::escapeId( $fragment,
525
$wgEnforceHtmlIds ? 'noninitial' : 'xml' );
526
}
527
528
#----------------------------------------------------------------------------
529
# Other stuff
530
#----------------------------------------------------------------------------
531
532
/** Simple accessors */
533
/**
534
* Get the text form (spaces not underscores) of the main part
535
* @return \type{\string} Main part of the title
536
*/
537
public function getText() { return $this->mTextform; }
538
/**
539
* Get the URL-encoded form of the main part
540
* @return \type{\string} Main part of the title, URL-encoded
541
*/
542
public function getPartialURL() { return $this->mUrlform; }
543
/**
544
* Get the main part with underscores
545
* @return \type{\string} Main part of the title, with underscores
546
*/
547
public function getDBkey() { return $this->mDbkeyform; }
548
/**
549
* Get the namespace index, i.e.\ one of the NS_xxxx constants.
550
* @return \type{\int} Namespace index
551
*/
552
public function getNamespace() { return $this->mNamespace; }
553
/**
554
* Get the namespace text
555
* @return \type{\string} Namespace text
556
*/
557
public function getNsText() {
558
global $wgContLang, $wgCanonicalNamespaceNames;
559
560
if ( '' != $this->mInterwiki ) {
561
// This probably shouldn't even happen. ohh man, oh yuck.
562
// But for interwiki transclusion it sometimes does.
563
// Shit. Shit shit shit.
564
//
565
// Use the canonical namespaces if possible to try to
566
// resolve a foreign namespace.
567
if( isset( $wgCanonicalNamespaceNames[$this->mNamespace] ) ) {
568
return $wgCanonicalNamespaceNames[$this->mNamespace];
569
}
570
}
571
return $wgContLang->getNsText( $this->mNamespace );
572
}
573
/**
574
* Get the DB key with the initial letter case as specified by the user
575
* @return \type{\string} DB key
576
*/
577
function getUserCaseDBKey() {
578
return $this->mUserCaseDBKey;
579
}
580
/**
581
* Get the namespace text of the subject (rather than talk) page
582
* @return \type{\string} Namespace text
583
*/
584
public function getSubjectNsText() {
585
global $wgContLang;
586
return $wgContLang->getNsText( MWNamespace::getSubject( $this->mNamespace ) );
587
}
588
/**
589
* Get the namespace text of the talk page
590
* @return \type{\string} Namespace text
591
*/
592
public function getTalkNsText() {
593
global $wgContLang;
594
return( $wgContLang->getNsText( MWNamespace::getTalk( $this->mNamespace ) ) );
595
}
596
/**
597
* Could this title have a corresponding talk page?
598
* @return \type{\bool} TRUE or FALSE
599
*/
600
public function canTalk() {
601
return( MWNamespace::canTalk( $this->mNamespace ) );
602
}
603
/**
604
* Get the interwiki prefix (or null string)
605
* @return \type{\string} Interwiki prefix
606
*/
607
public function getInterwiki() { return $this->mInterwiki; }
608
/**
609
* Get the Title fragment (i.e.\ the bit after the #) in text form
610
* @return \type{\string} Title fragment
611
*/
612
public function getFragment() { return $this->mFragment; }
613
/**
614
* Get the fragment in URL form, including the "#" character if there is one
615
* @return \type{\string} Fragment in URL form
616
*/
617
public function getFragmentForURL() {
618
if ( $this->mFragment == '' ) {
619
return '';
620
} else {
621
return '#' . Title::escapeFragmentForURL( $this->mFragment );
622
}
623
}
624
/**
625
* Get the default namespace index, for when there is no namespace
626
* @return \type{\int} Default namespace index
627
*/
628
public function getDefaultNamespace() { return $this->mDefaultNamespace; }
629
630
/**
631
* Get title for search index
632
* @return \type{\string} a stripped-down title string ready for the
633
* search index
634
*/
635
public function getIndexTitle() {
636
return Title::indexTitle( $this->mNamespace, $this->mTextform );
637
}
638
639
/**
640
* Get the prefixed database key form
641
* @return \type{\string} the prefixed title, with underscores and
642
* any interwiki and namespace prefixes
643
*/
644
public function getPrefixedDBkey() {
645
$s = $this->prefix( $this->mDbkeyform );
646
$s = str_replace( ' ', '_', $s );
647
return $s;
648
}
649
650
/**
651
* Get the prefixed title with spaces.
652
* This is the form usually used for display
653
* @return \type{\string} the prefixed title, with spaces
654
*/
655
public function getPrefixedText() {
656
if ( empty( $this->mPrefixedText ) ) { // FIXME: bad usage of empty() ?
657
$s = $this->prefix( $this->mTextform );
658
$s = str_replace( '_', ' ', $s );
659
$this->mPrefixedText = $s;
660
}
661
return $this->mPrefixedText;
662
}
663
664
/**
665
* Get the prefixed title with spaces, plus any fragment
666
* (part beginning with '#')
667
* @return \type{\string} the prefixed title, with spaces and
668
* the fragment, including '#'
669
*/
670
public function getFullText() {
671
$text = $this->getPrefixedText();
672
if( '' != $this->mFragment ) {
673
$text .= '#' . $this->mFragment;
674
}
675
return $text;
676
}
677
678
/**
679
* Get the base name, i.e. the leftmost parts before the /
680
* @return \type{\string} Base name
681
*/
682
public function getBaseText() {
683
if( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
684
return $this->getText();
685
}
686
687
$parts = explode( '/', $this->getText() );
688
# Don't discard the real title if there's no subpage involved
689
if( count( $parts ) > 1 )
690
unset( $parts[ count( $parts ) - 1 ] );
691
return implode( '/', $parts );
692
}
693
694
/**
695
* Get the lowest-level subpage name, i.e. the rightmost part after /
696
* @return \type{\string} Subpage name
697
*/
698
public function getSubpageText() {
699
if( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
700
return( $this->mTextform );
701
}
702
$parts = explode( '/', $this->mTextform );
703
return( $parts[ count( $parts ) - 1 ] );
704
}
705
706
/**
707
* Get a URL-encoded form of the subpage text
708
* @return \type{\string} URL-encoded subpage name
709
*/
710
public function getSubpageUrlForm() {
711
$text = $this->getSubpageText();
712
$text = wfUrlencode( str_replace( ' ', '_', $text ) );
713
return( $text );
714
}
715
716
/**
717
* Get a URL-encoded title (not an actual URL) including interwiki
718
* @return \type{\string} the URL-encoded form
719
*/
720
public function getPrefixedURL() {
721
$s = $this->prefix( $this->mDbkeyform );
722
$s = wfUrlencode( str_replace( ' ', '_', $s ) );
723
return $s;
724
}
725
726
/**
727
* Get a real URL referring to this title, with interwiki link and
728
* fragment
729
*
730
* @param $query \twotypes{\string,\array} an optional query string, not used for interwiki
731
* links. Can be specified as an associative array as well, e.g.,
732
* array( 'action' => 'edit' ) (keys and values will be URL-escaped).
733
* @param $variant \type{\string} language variant of url (for sr, zh..)
734
* @return \type{\string} the URL
735
*/
736
public function getFullURL( $query = '', $variant = false ) {
737
global $wgContLang, $wgServer, $wgRequest;
738
739
if( is_array( $query ) ) {
740
$query = wfArrayToCGI( $query );
741
}
742
743
$interwiki = Interwiki::fetch( $this->mInterwiki );
744
if ( !$interwiki ) {
745
$url = $this->getLocalUrl( $query, $variant );
746
747
// Ugly quick hack to avoid duplicate prefixes (bug 4571 etc)
748
// Correct fix would be to move the prepending elsewhere.
749
if ($wgRequest->getVal('action') != 'render') {
750
$url = $wgServer . $url;
751
}
752
} else {
753
$baseUrl = $interwiki->getURL( );
754
755
$namespace = wfUrlencode( $this->getNsText() );
756
if ( '' != $namespace ) {
757
# Can this actually happen? Interwikis shouldn't be parsed.
758
# Yes! It can in interwiki transclusion. But... it probably shouldn't.
759
$namespace .= ':';
760
}
761
$url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
762
$url = wfAppendQuery( $url, $query );
763
}
764
765
# Finally, add the fragment.
766
$url .= $this->getFragmentForURL();
767
768
wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
769
return $url;
770
}
771
772
/**
773
* Get a URL with no fragment or server name. If this page is generated
774
* with action=render, $wgServer is prepended.
775
* @param mixed $query an optional query string; if not specified,
776
* $wgArticlePath will be used. Can be specified as an associative array
777
* as well, e.g., array( 'action' => 'edit' ) (keys and values will be
778
* URL-escaped).
779
* @param $variant \type{\string} language variant of url (for sr, zh..)
780
* @return \type{\string} the URL
781
*/
782
public function getLocalURL( $query = '', $variant = false ) {
783
global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
784
global $wgVariantArticlePath, $wgContLang, $wgUser;
785
786
if( is_array( $query ) ) {
787
$query = wfArrayToCGI( $query );
788
}
789
790
// internal links should point to same variant as current page (only anonymous users)
791
if($variant == false && $wgContLang->hasVariants() && !$wgUser->isLoggedIn()){
792
$pref = $wgContLang->getPreferredVariant(false);
793
if($pref != $wgContLang->getCode())
794
$variant = $pref;
795
}
796
797
if ( $this->isExternal() ) {
798
$url = $this->getFullURL();
799
if ( $query ) {
800
// This is currently only used for edit section links in the
801
// context of interwiki transclusion. In theory we should
802
// append the query to the end of any existing query string,
803
// but interwiki transclusion is already broken in that case.
804
$url .= "?$query";
805
}
806
} else {
807
$dbkey = wfUrlencode( $this->getPrefixedDBkey() );
808
if ( $query == '' ) {
809
if( $variant != false && $wgContLang->hasVariants() ) {
810
if( $wgVariantArticlePath == false ) {
811
$variantArticlePath = "$wgScript?title=$1&variant=$2"; // default
812
} else {
813
$variantArticlePath = $wgVariantArticlePath;
814
}
815
$url = str_replace( '$2', urlencode( $variant ), $variantArticlePath );
816
$url = str_replace( '$1', $dbkey, $url );
817
} else {
818
$url = str_replace( '$1', $dbkey, $wgArticlePath );
819
}
820
} else {
821
global $wgActionPaths;
822
$url = false;
823
$matches = array();
824
if( !empty( $wgActionPaths ) &&
825
preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) )
826
{
827
$action = urldecode( $matches[2] );
828
if( isset( $wgActionPaths[$action] ) ) {
829
$query = $matches[1];
830
if( isset( $matches[4] ) ) $query .= $matches[4];
831
$url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
832
if( $query != '' ) {
833
$url = wfAppendQuery( $url, $query );
834
}
835
}
836
}
837
if ( $url === false ) {
838
if ( $query == '-' ) {
839
$query = '';
840
}
841
$url = "{$wgScript}?title={$dbkey}&{$query}";
842
}
843
}
844
845
// FIXME: this causes breakage in various places when we
846
// actually expected a local URL and end up with dupe prefixes.
847
if ($wgRequest->getVal('action') == 'render') {
848
$url = $wgServer . $url;
849
}
850
}
851
wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
852
return $url;
853
}
854
855
/**
856
* Get a URL that's the simplest URL that will be valid to link, locally,
857
* to the current Title. It includes the fragment, but does not include
858
* the server unless action=render is used (or the link is external). If
859
* there's a fragment but the prefixed text is empty, we just return a link
860
* to the fragment.
861
*
862
* @param $query \type{\arrayof{\string}} An associative array of key => value pairs for the
863
* query string. Keys and values will be escaped.
864
* @param $variant \type{\string} Language variant of URL (for sr, zh..). Ignored
865
* for external links. Default is "false" (same variant as current page,
866
* for anonymous users).
867
* @return \type{\string} the URL
868
*/
869
public function getLinkUrl( $query = array(), $variant = false ) {
870
wfProfileIn( __METHOD__ );
871
if( !is_array( $query ) ) {
872
wfProfileOut( __METHOD__ );
873
throw new MWException( 'Title::getLinkUrl passed a non-array for '.
874
'$query' );
875
}
876
if( $this->isExternal() ) {
877
$ret = $this->getFullURL( $query );
878
} elseif( $this->getPrefixedText() === '' && $this->getFragment() !== '' ) {
879
$ret = $this->getFragmentForURL();
880
} else {
881
$ret = $this->getLocalURL( $query, $variant ) . $this->getFragmentForURL();
882
}
883
wfProfileOut( __METHOD__ );
884
return $ret;
885
}
886
887
/**
888
* Get an HTML-escaped version of the URL form, suitable for
889
* using in a link, without a server name or fragment
890
* @param $query \type{\string} an optional query string
891
* @return \type{\string} the URL
892
*/
893
public function escapeLocalURL( $query = '' ) {
894
return htmlspecialchars( $this->getLocalURL( $query ) );
895
}
896
897
/**
898
* Get an HTML-escaped version of the URL form, suitable for
899
* using in a link, including the server name and fragment
900
*
901
* @param $query \type{\string} an optional query string
902
* @return \type{\string} the URL
903
*/
904
public function escapeFullURL( $query = '' ) {
905
return htmlspecialchars( $this->getFullURL( $query ) );
906
}
907
908
/**
909
* Get the URL form for an internal link.
910
* - Used in various Squid-related code, in case we have a different
911
* internal hostname for the server from the exposed one.
912
*
913
* @param $query \type{\string} an optional query string
914
* @param $variant \type{\string} language variant of url (for sr, zh..)
915
* @return \type{\string} the URL
916
*/
917
public function getInternalURL( $query = '', $variant = false ) {
918
global $wgInternalServer;
919
$url = $wgInternalServer . $this->getLocalURL( $query, $variant );
920
wfRunHooks( 'GetInternalURL', array( &$this, &$url, $query ) );
921
return $url;
922
}
923
924
/**
925
* Get the edit URL for this Title
926
* @return \type{\string} the URL, or a null string if this is an
927
* interwiki link
928
*/
929
public function getEditURL() {
930
if ( '' != $this->mInterwiki ) { return ''; }
931
$s = $this->getLocalURL( 'action=edit' );
932
933
return $s;
934
}
935
936
/**
937
* Get the HTML-escaped displayable text form.
938
* Used for the title field in <a> tags.
939
* @return \type{\string} the text, including any prefixes
940
*/
941
public function getEscapedText() {
942
return htmlspecialchars( $this->getPrefixedText() );
943
}
944
945
/**
946
* Is this Title interwiki?
947
* @return \type{\bool}
948
*/
949
public function isExternal() { return ( '' != $this->mInterwiki ); }
950
951
/**
952
* Is this page "semi-protected" - the *only* protection is autoconfirm?
953
*
954
* @param @action \type{\string} Action to check (default: edit)
955
* @return \type{\bool}
956
*/
957
public function isSemiProtected( $action = 'edit' ) {
958
if( $this->exists() ) {
959
$restrictions = $this->getRestrictions( $action );
960
if( count( $restrictions ) > 0 ) {
961
foreach( $restrictions as $restriction ) {
962
if( strtolower( $restriction ) != 'autoconfirmed' )
963
return false;
964
}
965
} else {
966
# Not protected
967
return false;
968
}
969
return true;
970
} else {
971
# If it doesn't exist, it can't be protected
972
return false;
973
}
974
}
975
976
/**
977
* Does the title correspond to a protected article?
978
* @param $what \type{\string} the action the page is protected from,
979
* by default checks move and edit
980
* @return \type{\bool}
981
*/
982
public function isProtected( $action = '' ) {
983
global $wgRestrictionLevels, $wgRestrictionTypes;
984
985
# Special pages have inherent protection
986
if( $this->getNamespace() == NS_SPECIAL )
987
return true;
988
989
# Check regular protection levels
990
foreach( $wgRestrictionTypes as $type ){
991
if( $action == $type || $action == '' ) {
992
$r = $this->getRestrictions( $type );
993
foreach( $wgRestrictionLevels as $level ) {
994
if( in_array( $level, $r ) && $level != '' ) {
995
return true;
996
}
997
}
998
}
999
}
1000
1001
return false;
1002
}
1003
1004
/**
1005
* Is $wgUser watching this page?
1006
* @return \type{\bool}
1007
*/
1008
public function userIsWatching() {
1009
global $wgUser;
1010
1011
if ( is_null( $this->mWatched ) ) {
1012
if ( NS_SPECIAL == $this->mNamespace || !$wgUser->isLoggedIn()) {
1013
$this->mWatched = false;
1014
} else {
1015
$this->mWatched = $wgUser->isWatched( $this );
1016
}
1017
}
1018
return $this->mWatched;
1019
}
1020
1021
/**
1022
* Can $wgUser perform $action on this page?
1023
* This skips potentially expensive cascading permission checks.
1024
*
1025
* Suitable for use for nonessential UI controls in common cases, but
1026
* _not_ for functional access control.
1027
*
1028
* May provide false positives, but should never provide a false negative.
1029
*
1030
* @param $action \type{\string} action that permission needs to be checked for
1031
* @return \type{\bool}
1032
*/
1033
public function quickUserCan( $action ) {
1034
return $this->userCan( $action, false );
1035
}
1036
1037
/**
1038
* Determines if $wgUser is unable to edit this page because it has been protected
1039
* by $wgNamespaceProtection.
1040
*
1041
* @return \type{\bool}
1042
*/
1043
public function isNamespaceProtected() {
1044
global $wgNamespaceProtection, $wgUser;
1045
if( isset( $wgNamespaceProtection[ $this->mNamespace ] ) ) {
1046
foreach( (array)$wgNamespaceProtection[ $this->mNamespace ] as $right ) {
1047
if( $right != '' && !$wgUser->isAllowed( $right ) )
1048
return true;
1049
}
1050
}
1051
return false;
1052
}
1053
1054
/**
1055
* Can $wgUser perform $action on this page?
1056
* @param $action \type{\string} action that permission needs to be checked for
1057
* @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1058
* @return \type{\bool}
1059
*/
1060
public function userCan( $action, $doExpensiveQueries = true ) {
1061
global $wgUser;
1062
return ($this->getUserPermissionsErrorsInternal( $action, $wgUser, $doExpensiveQueries, true ) === array());
1063
}
1064
1065
/**
1066
* Can $user perform $action on this page?
1067
*
1068
* FIXME: This *does not* check throttles (User::pingLimiter()).
1069
*
1070
* @param $action \type{\string}action that permission needs to be checked for
1071
* @param $user \type{User} user to check
1072
* @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1073
* @param $ignoreErrors \type{\arrayof{\string}} Set this to a list of message keys whose corresponding errors may be ignored.
1074
* @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1075
*/
1076
public function getUserPermissionsErrors( $action, $user, $doExpensiveQueries = true, $ignoreErrors = array() ) {
1077
if( !StubObject::isRealObject( $user ) ) {
1078
//Since StubObject is always used on globals, we can unstub $wgUser here and set $user = $wgUser
1079
global $wgUser;
1080
$wgUser->_unstub( '', 5 );
1081
$user = $wgUser;
1082
}
1083
$errors = $this->getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries );
1084
1085
global $wgContLang;
1086
global $wgLang;
1087
global $wgEmailConfirmToEdit;
1088
1089
if ( $wgEmailConfirmToEdit && !$user->isEmailConfirmed() && $action != 'createaccount' ) {
1090
$errors[] = array( 'confirmedittext' );
1091
}
1092
1093
// Edit blocks should not affect reading. Account creation blocks handled at userlogin.
1094
if ( $action != 'read' && $action != 'createaccount' && $user->isBlockedFrom( $this ) ) {
1095
$block = $user->mBlock;
1096
1097
// This is from OutputPage::blockedPage
1098
// Copied at r23888 by werdna
1099
1100
$id = $user->blockedBy();
1101
$reason = $user->blockedFor();
1102
if( $reason == '' ) {
1103
$reason = wfMsg( 'blockednoreason' );
1104
}
1105
$ip = wfGetIP();
1106
1107
if ( is_numeric( $id ) ) {
1108
$name = User::whoIs( $id );
1109
} else {
1110
$name = $id;
1111
}
1112
1113
$link = '[[' . $wgContLang->getNsText( NS_USER ) . ":{$name}|{$name}]]";
1114
$blockid = $block->mId;
1115
$blockExpiry = $user->mBlock->mExpiry;
1116
$blockTimestamp = $wgLang->timeanddate( wfTimestamp( TS_MW, $user->mBlock->mTimestamp ), true );
1117
1118
if ( $blockExpiry == 'infinity' ) {
1119
// Entry in database (table ipblocks) is 'infinity' but 'ipboptions' uses 'infinite' or 'indefinite'
1120
$scBlockExpiryOptions = wfMsg( 'ipboptions' );
1121
1122
foreach ( explode( ',', $scBlockExpiryOptions ) as $option ) {
1123
if ( strpos( $option, ':' ) == false )
1124
continue;
1125
1126
list ($show, $value) = explode( ":", $option );
1127
1128
if ( $value == 'infinite' || $value == 'indefinite' ) {
1129
$blockExpiry = $show;
1130
break;
1131
}
1132
}
1133
} else {
1134
$blockExpiry = $wgLang->timeanddate( wfTimestamp( TS_MW, $blockExpiry ), true );
1135
}
1136
1137
$intended = $user->mBlock->mAddress;
1138
1139
$errors[] = array( ($block->mAuto ? 'autoblockedtext' : 'blockedtext'), $link, $reason, $ip, $name,
1140
$blockid, $blockExpiry, $intended, $blockTimestamp );
1141
}
1142
1143
// Remove the errors being ignored.
1144
1145
foreach( $errors as $index => $error ) {
1146
$error_key = is_array($error) ? $error[0] : $error;
1147
1148
if (in_array( $error_key, $ignoreErrors )) {
1149
unset($errors[$index]);
1150
}
1151
}
1152
1153
return $errors;
1154
}
1155
1156
/**
1157
* Can $user perform $action on this page? This is an internal function,
1158
* which checks ONLY that previously checked by userCan (i.e. it leaves out
1159
* checks on wfReadOnly() and blocks)
1160
*
1161
* @param $action \type{\string} action that permission needs to be checked for
1162
* @param $user \type{User} user to check
1163
* @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1164
* @param $short \type{\bool} Set this to true to stop after the first permission error.
1165
* @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1166
*/
1167
private function getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries=true, $short=false ) {
1168
wfProfileIn( __METHOD__ );
1169
1170
$errors = array();
1171
1172
// First stop is permissions checks, which fail most often, and which are easiest to test.
1173
if ( $action == 'move' ) {
1174
if( !$user->isAllowed( 'move-rootuserpages' )
1175
&& $this->getNamespace() == NS_USER && !$this->isSubpage() )
1176
{
1177
// Show user page-specific message only if the user can move other pages
1178
$errors[] = array( 'cant-move-user-page' );
1179
}
1180
1181
// Check if user is allowed to move files if it's a file
1182
if( $this->getNamespace() == NS_FILE && !$user->isAllowed( 'movefile' ) ) {
1183
$errors[] = array( 'movenotallowedfile' );
1184
}
1185
1186
if( !$user->isAllowed( 'move' ) ) {
1187
// User can't move anything
1188
$errors[] = $user->isAnon() ? array ( 'movenologintext' ) : array ('movenotallowed');
1189
}
1190
} elseif ( $action == 'create' ) {
1191
if( ( $this->isTalkPage() && !$user->isAllowed( 'createtalk' ) ) ||
1192
( !$this->isTalkPage() && !$user->isAllowed( 'createpage' ) ) )
1193
{
1194
$errors[] = $user->isAnon() ? array ('nocreatetext') : array ('nocreate-loggedin');
1195
}
1196
} elseif( $action == 'move-target' ) {
1197
if( !$user->isAllowed( 'move' ) ) {
1198
// User can't move anything
1199
$errors[] = $user->isAnon() ? array ( 'movenologintext' ) : array ('movenotallowed');
1200
} elseif( !$user->isAllowed( 'move-rootuserpages' )
1201
&& $this->getNamespace() == NS_USER && !$this->isSubpage() )
1202
{
1203
// Show user page-specific message only if the user can move other pages
1204
$errors[] = array( 'cant-move-to-user-page' );
1205
}
1206
} elseif( !$user->isAllowed( $action ) ) {
1207
$return = null;
1208
$groups = array_map( array( 'User', 'makeGroupLinkWiki' ),
1209
User::getGroupsWithPermission( $action ) );
1210
if( $groups ) {
1211
$return = array( 'badaccess-groups',
1212
array( implode( ', ', $groups ), count( $groups ) ) );
1213
} else {
1214
$return = array( "badaccess-group0" );
1215
}
1216
$errors[] = $return;
1217
}
1218
1219
# Short-circuit point
1220
if( $short && count($errors) > 0 ) {
1221
wfProfileOut( __METHOD__ );
1222
return $errors;
1223
}
1224
1225
// Use getUserPermissionsErrors instead
1226
if( !wfRunHooks( 'userCan', array( &$this, &$user, $action, &$result ) ) ) {
1227
wfProfileOut( __METHOD__ );
1228
return $result ? array() : array( array( 'badaccess-group0' ) );
1229
}
1230
// Check getUserPermissionsErrors hook
1231
if( !wfRunHooks( 'getUserPermissionsErrors', array(&$this,&$user,$action,&$result) ) ) {
1232
if( is_array($result) && count($result) && !is_array($result[0]) )
1233
$errors[] = $result; # A single array representing an error
1234
else if( is_array($result) && is_array($result[0]) )
1235
$errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1236
else if( $result !== '' && is_string($result) )
1237
$errors[] = array($result); # A string representing a message-id
1238
else if( $result === false )
1239
$errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1240
}
1241
# Short-circuit point
1242
if( $short && count($errors) > 0 ) {
1243
wfProfileOut( __METHOD__ );
1244
return $errors;
1245
}
1246
// Check getUserPermissionsErrorsExpensive hook
1247
if( $doExpensiveQueries && !wfRunHooks( 'getUserPermissionsErrorsExpensive', array(&$this,&$user,$action,&$result) ) ) {
1248
if( is_array($result) && count($result) && !is_array($result[0]) )
1249
$errors[] = $result; # A single array representing an error
1250
else if( is_array($result) && is_array($result[0]) )
1251
$errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1252
else if( $result !== '' && is_string($result) )
1253
$errors[] = array($result); # A string representing a message-id
1254
else if( $result === false )
1255
$errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1256
}
1257
# Short-circuit point
1258
if( $short && count($errors) > 0 ) {
1259
wfProfileOut( __METHOD__ );
1260
return $errors;
1261
}
1262
1263
# Only 'createaccount' and 'execute' can be performed on
1264
# special pages, which don't actually exist in the DB.
1265
$specialOKActions = array( 'createaccount', 'execute' );
1266
if( NS_SPECIAL == $this->mNamespace && !in_array( $action, $specialOKActions) ) {
1267
$errors[] = array('ns-specialprotected');
1268
}
1269
1270
# Check $wgNamespaceProtection for restricted namespaces
1271
if( $this->isNamespaceProtected() ) {
1272
$ns = $this->getNamespace() == NS_MAIN ?
1273
wfMsg( 'nstab-main' ) : $this->getNsText();
1274
$errors[] = NS_MEDIAWIKI == $this->mNamespace ?
1275
array('protectedinterface') : array( 'namespaceprotected', $ns );
1276
}
1277
1278
# Protect css/js subpages of user pages
1279
# XXX: this might be better using restrictions
1280
# XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
1281
if( $this->isCssJsSubpage() && !$user->isAllowed('editusercssjs')
1282
&& !preg_match('/^'.preg_quote($user->getName(), '/').'\//', $this->mTextform) )
1283
{
1284
$errors[] = array('customcssjsprotected');
1285
}
1286
1287
# Check against page_restrictions table requirements on this
1288
# page. The user must possess all required rights for this action.
1289
foreach( $this->getRestrictions($action) as $right ) {
1290
// Backwards compatibility, rewrite sysop -> protect
1291
if( $right == 'sysop' ) {
1292
$right = 'protect';
1293
}
1294
if( '' != $right && !$user->isAllowed( $right ) ) {
1295
// Users with 'editprotected' permission can edit protected pages
1296
if( $action=='edit' && $user->isAllowed( 'editprotected' ) ) {
1297
// Users with 'editprotected' permission cannot edit protected pages
1298
// with cascading option turned on.
1299
if( $this->mCascadeRestriction ) {
1300
$errors[] = array( 'protectedpagetext', $right );
1301
}
1302
} else {
1303
$errors[] = array( 'protectedpagetext', $right );
1304
}
1305
}
1306
}
1307
# Short-circuit point
1308
if( $short && count($errors) > 0 ) {
1309
wfProfileOut( __METHOD__ );
1310
return $errors;
1311
}
1312
1313
if( $doExpensiveQueries && !$this->isCssJsSubpage() ) {
1314
# We /could/ use the protection level on the source page, but it's fairly ugly
1315
# as we have to establish a precedence hierarchy for pages included by multiple
1316
# cascade-protected pages. So just restrict it to people with 'protect' permission,
1317
# as they could remove the protection anyway.
1318
list( $cascadingSources, $restrictions ) = $this->getCascadeProtectionSources();
1319
# Cascading protection depends on more than this page...
1320
# Several cascading protected pages may include this page...
1321
# Check each cascading level
1322
# This is only for protection restrictions, not for all actions
1323
if( $cascadingSources > 0 && isset($restrictions[$action]) ) {
1324
foreach( $restrictions[$action] as $right ) {
1325
$right = ( $right == 'sysop' ) ? 'protect' : $right;
1326
if( '' != $right && !$user->isAllowed( $right ) ) {
1327
$pages = '';
1328
foreach( $cascadingSources as $page )
1329
$pages .= '* [[:' . $page->getPrefixedText() . "]]\n";
1330
$errors[] = array( 'cascadeprotected', count( $cascadingSources ), $pages );
1331
}
1332
}
1333
}
1334
}
1335
# Short-circuit point
1336
if( $short && count($errors) > 0 ) {
1337
wfProfileOut( __METHOD__ );
1338
return $errors;
1339
}
1340
1341
if( $action == 'protect' ) {
1342
if( $this->getUserPermissionsErrors('edit', $user) != array() ) {
1343
$errors[] = array( 'protect-cantedit' ); // If they can't edit, they shouldn't protect.
1344
}
1345
}
1346
1347
if( $action == 'create' ) {
1348
$title_protection = $this->getTitleProtection();
1349
if( is_array($title_protection) ) {
1350
extract($title_protection); // is this extract() really needed?
1351
1352
if( $pt_create_perm == 'sysop' ) {
1353
$pt_create_perm = 'protect'; // B/C
1354
}
1355
if( $pt_create_perm == '' || !$user->isAllowed($pt_create_perm) ) {
1356
$errors[] = array( 'titleprotected', User::whoIs($pt_user), $pt_reason );
1357
}
1358
}
1359
} elseif( $action == 'move' ) {
1360
// Check for immobile pages
1361
if( !MWNamespace::isMovable( $this->getNamespace() ) ) {
1362
// Specific message for this case
1363
$errors[] = array( 'immobile-source-namespace', $this->getNsText() );
1364
} elseif( !$this->isMovable() ) {
1365
// Less specific message for rarer cases
1366
$errors[] = array( 'immobile-page' );
1367
}
1368
} elseif( $action == 'move-target' ) {
1369
if( !MWNamespace::isMovable( $this->getNamespace() ) ) {
1370
$errors[] = array( 'immobile-target-namespace', $this->getNsText() );
1371
} elseif( !$this->isMovable() ) {
1372
$errors[] = array( 'immobile-target-page' );
1373
}
1374
}
1375
1376
wfProfileOut( __METHOD__ );
1377
return $errors;
1378
}
1379
1380
/**
1381
* Is this title subject to title protection?
1382
* @return \type{\mixed} An associative array representing any existent title
1383
* protection, or false if there's none.
1384
*/
1385
private function getTitleProtection() {
1386
// Can't protect pages in special namespaces
1387
if ( $this->getNamespace() < 0 ) {
1388
return false;
1389
}
1390
1391
$dbr = wfGetDB( DB_SLAVE );
1392
$res = $dbr->select( 'protected_titles', '*',
1393
array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1394
__METHOD__ );
1395
1396
if ($row = $dbr->fetchRow( $res )) {
1397
return $row;
1398
} else {
1399
return false;
1400
}
1401
}
1402
1403
/**
1404
* Update the title protection status
1405
* @param $create_perm \type{\string} Permission required for creation
1406
* @param $reason \type{\string} Reason for protection
1407
* @param $expiry \type{\string} Expiry timestamp
1408
*/
1409
public function updateTitleProtection( $create_perm, $reason, $expiry ) {
1410
global $wgUser,$wgContLang;
1411
1412
if ($create_perm == implode(',',$this->getRestrictions('create'))
1413
&& $expiry == $this->mRestrictionsExpiry['create']) {
1414
// No change
1415
return true;
1416
}
1417
1418
list ($namespace, $title) = array( $this->getNamespace(), $this->getDBkey() );
1419
1420
$dbw = wfGetDB( DB_MASTER );
1421
1422
$encodedExpiry = Block::encodeExpiry($expiry, $dbw );
1423
1424
$expiry_description = '';
1425
if ( $encodedExpiry != 'infinity' ) {
1426
$expiry_description = ' (' . wfMsgForContent( 'protect-expiring', $wgContLang->timeanddate( $expiry ) , $wgContLang->date( $expiry ) , $wgContLang->time( $expiry ) ).')';
1427
}
1428
else {
1429
$expiry_description .= ' (' . wfMsgForContent( 'protect-expiry-indefinite' ).')';
1430
}
1431
1432
# Update protection table
1433
if ($create_perm != '' ) {
1434
$dbw->replace( 'protected_titles', array(array('pt_namespace', 'pt_title')),
1435
array( 'pt_namespace' => $namespace, 'pt_title' => $title
1436
, 'pt_create_perm' => $create_perm
1437
, 'pt_timestamp' => Block::encodeExpiry(wfTimestampNow(), $dbw)
1438
, 'pt_expiry' => $encodedExpiry
1439
, 'pt_user' => $wgUser->getId(), 'pt_reason' => $reason ), __METHOD__ );
1440
} else {
1441
$dbw->delete( 'protected_titles', array( 'pt_namespace' => $namespace,
1442
'pt_title' => $title ), __METHOD__ );
1443
}
1444
# Update the protection log
1445
$log = new LogPage( 'protect' );
1446
1447
if( $create_perm ) {
1448
$params = array("[create=$create_perm] $expiry_description",'');
1449
$log->addEntry( $this->mRestrictions['create'] ? 'modify' : 'protect', $this, trim( $reason ), $params );
1450
} else {
1451
$log->addEntry( 'unprotect', $this, $reason );
1452
}
1453
1454
return true;
1455
}
1456
1457
/**
1458
* Remove any title protection due to page existing
1459
*/
1460
public function deleteTitleProtection() {
1461
$dbw = wfGetDB( DB_MASTER );
1462
1463
$dbw->delete( 'protected_titles',
1464
array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1465
__METHOD__ );
1466
}
1467
1468
/**
1469
* Can $wgUser edit this page?
1470
* @return \type{\bool} TRUE or FALSE
1471
* @deprecated use userCan('edit')
1472
*/
1473
public function userCanEdit( $doExpensiveQueries = true ) {
1474
return $this->userCan( 'edit', $doExpensiveQueries );
1475
}
1476
1477
/**
1478
* Can $wgUser create this page?
1479
* @return \type{\bool} TRUE or FALSE
1480
* @deprecated use userCan('create')
1481
*/
1482
public function userCanCreate( $doExpensiveQueries = true ) {
1483
return $this->userCan( 'create', $doExpensiveQueries );
1484
}
1485
1486
/**
1487
* Can $wgUser move this page?
1488
* @return \type{\bool} TRUE or FALSE
1489
* @deprecated use userCan('move')
1490
*/
1491
public function userCanMove( $doExpensiveQueries = true ) {
1492
return $this->userCan( 'move', $doExpensiveQueries );
1493
}
1494
1495
/**
1496
* Would anybody with sufficient privileges be able to move this page?
1497
* Some pages just aren't movable.
1498
*
1499
* @return \type{\bool} TRUE or FALSE
1500
*/
1501
public function isMovable() {
1502
return MWNamespace::isMovable( $this->getNamespace() ) && $this->getInterwiki() == '';
1503
}
1504
1505
/**
1506
* Can $wgUser read this page?
1507
* @return \type{\bool} TRUE or FALSE
1508
* @todo fold these checks into userCan()
1509
*/
1510
public function userCanRead() {
1511
global $wgUser, $wgGroupPermissions;
1512
1513
$result = null;
1514
wfRunHooks( 'userCan', array( &$this, &$wgUser, 'read', &$result ) );
1515
if ( $result !== null ) {
1516
return $result;
1517
}
1518
1519
# Shortcut for public wikis, allows skipping quite a bit of code
1520
if ( !empty( $wgGroupPermissions['*']['read'] ) )
1521
return true;
1522
1523
if( $wgUser->isAllowed( 'read' ) ) {
1524
return true;
1525
} else {
1526
global $wgWhitelistRead;
1527
1528
/**
1529
* Always grant access to the login page.
1530
* Even anons need to be able to log in.
1531
*/
1532
if( $this->isSpecial( 'Userlogin' ) || $this->isSpecial( 'Resetpass' ) ) {
1533
return true;
1534
}
1535
1536
/**
1537
* Bail out if there isn't whitelist
1538
*/
1539
if( !is_array($wgWhitelistRead) ) {
1540
return false;
1541
}
1542
1543
/**
1544
* Check for explicit whitelisting
1545
*/
1546
$name = $this->getPrefixedText();
1547
$dbName = $this->getPrefixedDBKey();
1548
// Check with and without underscores
1549
if( in_array($name,$wgWhitelistRead,true) || in_array($dbName,$wgWhitelistRead,true) )
1550
return true;
1551
1552
/**
1553
* Old settings might have the title prefixed with
1554
* a colon for main-namespace pages
1555
*/
1556
if( $this->getNamespace() == NS_MAIN ) {
1557
if( in_array( ':' . $name, $wgWhitelistRead ) )
1558
return true;
1559
}
1560
1561
/**
1562
* If it's a special page, ditch the subpage bit
1563
* and check again
1564
*/
1565
if( $this->getNamespace() == NS_SPECIAL ) {
1566
$name = $this->getDBkey();
1567
list( $name, /* $subpage */) = SpecialPage::resolveAliasWithSubpage( $name );
1568
if ( $name === false ) {
1569
# Invalid special page, but we show standard login required message
1570
return false;
1571
}
1572
1573
$pure = SpecialPage::getTitleFor( $name )->getPrefixedText();
1574
if( in_array( $pure, $wgWhitelistRead, true ) )
1575
return true;
1576
}
1577
1578
}
1579
return false;
1580
}
1581
1582
/**
1583
* Is this a talk page of some sort?
1584
* @return \type{\bool} TRUE or FALSE
1585
*/
1586
public function isTalkPage() {
1587
return MWNamespace::isTalk( $this->getNamespace() );
1588
}
1589
1590
/**
1591
* Is this a subpage?
1592
* @return \type{\bool} TRUE or FALSE
1593
*/
1594
public function isSubpage() {
1595
return MWNamespace::hasSubpages( $this->mNamespace )
1596
? strpos( $this->getText(), '/' ) !== false
1597
: false;
1598
}
1599
1600
/**
1601
* Does this have subpages? (Warning, usually requires an extra DB query.)
1602
* @return \type{\bool} TRUE or FALSE
1603
*/
1604
public function hasSubpages() {
1605
if( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
1606
# Duh
1607
return false;
1608
}
1609
1610
# We dynamically add a member variable for the purpose of this method
1611
# alone to cache the result. There's no point in having it hanging
1612
# around uninitialized in every Title object; therefore we only add it
1613
# if needed and don't declare it statically.
1614
if( isset( $this->mHasSubpages ) ) {
1615
return $this->mHasSubpages;
1616
}
1617
1618
$subpages = $this->getSubpages( 1 );
1619
if( $subpages instanceof TitleArray )
1620
return $this->mHasSubpages = (bool)$subpages->count();
1621
return $this->mHasSubpages = false;
1622
}
1623
1624
/**
1625
* Get all subpages of this page.
1626
* @param $limit Maximum number of subpages to fetch; -1 for no limit
1627
* @return mixed TitleArray, or empty array if this page's namespace
1628
* doesn't allow subpages
1629
*/
1630
public function getSubpages( $limit = -1 ) {
1631
if( !MWNamespace::hasSubpages( $this->getNamespace() ) )
1632
return array();
1633
1634
$dbr = wfGetDB( DB_SLAVE );
1635
$conds['page_namespace'] = $this->getNamespace();
1636
$conds[] = 'page_title LIKE ' . $dbr->addQuotes(
1637
$dbr->escapeLike( $this->getDBkey() ) . '/%' );
1638
$options = array();
1639
if( $limit > -1 )
1640
$options['LIMIT'] = $limit;
1641
return $this->mSubpages = TitleArray::newFromResult(
1642
$dbr->select( 'page',
1643
array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' ),
1644
$conds,
1645
__METHOD__,
1646
$options
1647
)
1648
);
1649
}
1650
1651
/**
1652
* Could this page contain custom CSS or JavaScript, based
1653
* on the title?
1654
*
1655
* @return \type{\bool} TRUE or FALSE
1656
*/
1657
public function isCssOrJsPage() {
1658
return $this->mNamespace == NS_MEDIAWIKI
1659
&& preg_match( '!\.(?:css|js)$!u', $this->mTextform ) > 0;
1660
}
1661
1662
/**
1663
* Is this a .css or .js subpage of a user page?
1664
* @return \type{\bool} TRUE or FALSE
1665
*/
1666
public function isCssJsSubpage() {
1667
return ( NS_USER == $this->mNamespace and preg_match("/\\/.*\\.(?:css|js)$/", $this->mTextform ) );
1668
}
1669
/**
1670
* Is this a *valid* .css or .js subpage of a user page?
1671
* Check that the corresponding skin exists
1672
* @return \type{\bool} TRUE or FALSE
1673
*/
1674
public function isValidCssJsSubpage() {
1675
if ( $this->isCssJsSubpage() ) {
1676
$skinNames = Skin::getSkinNames();
1677
return array_key_exists( $this->getSkinFromCssJsSubpage(), $skinNames );
1678
} else {
1679
return false;
1680
}
1681
}
1682
/**
1683
* Trim down a .css or .js subpage title to get the corresponding skin name
1684
*/
1685
public function getSkinFromCssJsSubpage() {
1686
$subpage = explode( '/', $this->mTextform );
1687
$subpage = $subpage[ count( $subpage ) - 1 ];
1688
return( str_replace( array( '.css', '.js' ), array( '', '' ), $subpage ) );
1689
}
1690
/**
1691
* Is this a .css subpage of a user page?
1692
* @return \type{\bool} TRUE or FALSE
1693
*/
1694
public function isCssSubpage() {
1695
return ( NS_USER == $this->mNamespace && preg_match("/\\/.*\\.css$/", $this->mTextform ) );
1696
}
1697
/**
1698
* Is this a .js subpage of a user page?
1699
* @return \type{\bool} TRUE or FALSE
1700
*/
1701
public function isJsSubpage() {
1702
return ( NS_USER == $this->mNamespace && preg_match("/\\/.*\\.js$/", $this->mTextform ) );
1703
}
1704
/**
1705
* Protect css/js subpages of user pages: can $wgUser edit
1706
* this page?
1707
*
1708
* @return \type{\bool} TRUE or FALSE
1709
* @todo XXX: this might be better using restrictions
1710
*/
1711
public function userCanEditCssJsSubpage() {
1712
global $wgUser;
1713
return ( $wgUser->isAllowed('editusercssjs') || preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform) );
1714
}
1715
1716
/**
1717
* Cascading protection: Return true if cascading restrictions apply to this page, false if not.
1718
*
1719
* @return \type{\bool} If the page is subject to cascading restrictions.
1720
*/
1721
public function isCascadeProtected() {
1722
list( $sources, /* $restrictions */ ) = $this->getCascadeProtectionSources( false );
1723
return ( $sources > 0 );
1724
}
1725
1726
/**
1727
* Cascading protection: Get the source of any cascading restrictions on this page.
1728
*
1729
* @param $get_pages \type{\bool} Whether or not to retrieve the actual pages that the restrictions have come from.
1730
* @return \type{\arrayof{mixed title array, restriction array}} Array of the Title objects of the pages from
1731
* which cascading restrictions have come, false for none, or true if such restrictions exist, but $get_pages was not set.
1732
* The restriction array is an array of each type, each of which contains an array of unique groups.
1733
*/
1734
public function getCascadeProtectionSources( $get_pages = true ) {
1735
global $wgRestrictionTypes;
1736
1737
# Define our dimension of restrictions types
1738
$pagerestrictions = array();
1739
foreach( $wgRestrictionTypes as $action )
1740
$pagerestrictions[$action] = array();
1741
1742
if ( isset( $this->mCascadeSources ) && $get_pages ) {
1743
return array( $this->mCascadeSources, $this->mCascadingRestrictions );
1744
} else if ( isset( $this->mHasCascadingRestrictions ) && !$get_pages ) {
1745
return array( $this->mHasCascadingRestrictions, $pagerestrictions );
1746
}
1747
1748
wfProfileIn( __METHOD__ );
1749
1750
$dbr = wfGetDB( DB_SLAVE );
1751
1752
if ( $this->getNamespace() == NS_FILE ) {
1753
$tables = array ('imagelinks', 'page_restrictions');
1754
$where_clauses = array(
1755
'il_to' => $this->getDBkey(),
1756
'il_from=pr_page',
1757
'pr_cascade' => 1 );
1758
} else {
1759
$tables = array ('templatelinks', 'page_restrictions');
1760
$where_clauses = array(
1761
'tl_namespace' => $this->getNamespace(),
1762
'tl_title' => $this->getDBkey(),
1763
'tl_from=pr_page',
1764
'pr_cascade' => 1 );
1765
}
1766
1767
if ( $get_pages ) {
1768
$cols = array('pr_page', 'page_namespace', 'page_title', 'pr_expiry', 'pr_type', 'pr_level' );
1769
$where_clauses[] = 'page_id=pr_page';
1770
$tables[] = 'page';
1771
} else {
1772
$cols = array( 'pr_expiry' );
1773
}
1774
1775
$res = $dbr->select( $tables, $cols, $where_clauses, __METHOD__ );
1776
1777
$sources = $get_pages ? array() : false;
1778
$now = wfTimestampNow();
1779
$purgeExpired = false;
1780
1781
foreach( $res as $row ) {
1782
$expiry = Block::decodeExpiry( $row->pr_expiry );
1783
if( $expiry > $now ) {
1784
if ($get_pages) {
1785
$page_id = $row->pr_page;
1786
$page_ns = $row->page_namespace;
1787
$page_title = $row->page_title;
1788
$sources[$page_id] = Title::makeTitle($page_ns, $page_title);
1789
# Add groups needed for each restriction type if its not already there
1790
# Make sure this restriction type still exists
1791
if ( isset($pagerestrictions[$row->pr_type]) && !in_array($row->pr_level, $pagerestrictions[$row->pr_type]) ) {
1792
$pagerestrictions[$row->pr_type][]=$row->pr_level;
1793
}
1794
} else {
1795
$sources = true;
1796
}
1797
} else {
1798
// Trigger lazy purge of expired restrictions from the db
1799
$purgeExpired = true;
1800
}
1801
}
1802
if( $purgeExpired ) {
1803
Title::purgeExpiredRestrictions();
1804
}
1805
1806
wfProfileOut( __METHOD__ );
1807
1808
if ( $get_pages ) {
1809
$this->mCascadeSources = $sources;
1810
$this->mCascadingRestrictions = $pagerestrictions;
1811
} else {
1812
$this->mHasCascadingRestrictions = $sources;
1813
}
1814
return array( $sources, $pagerestrictions );
1815
}
1816
1817
function areRestrictionsCascading() {
1818
if (!$this->mRestrictionsLoaded) {
1819
$this->loadRestrictions();
1820
}
1821
1822
return $this->mCascadeRestriction;
1823
}
1824
1825
/**
1826
* Loads a string into mRestrictions array
1827
* @param $res \type{Resource} restrictions as an SQL result.
1828
*/
1829
private function loadRestrictionsFromRow( $res, $oldFashionedRestrictions = NULL ) {
1830
global $wgRestrictionTypes;
1831
$dbr = wfGetDB( DB_SLAVE );
1832
1833
foreach( $wgRestrictionTypes as $type ){
1834
$this->mRestrictions[$type] = array();
1835
$this->mRestrictionsExpiry[$type] = Block::decodeExpiry('');
1836
}
1837
1838
$this->mCascadeRestriction = false;
1839
1840
# Backwards-compatibility: also load the restrictions from the page record (old format).
1841
1842
if ( $oldFashionedRestrictions === NULL ) {
1843
$oldFashionedRestrictions = $dbr->selectField( 'page', 'page_restrictions',
1844
array( 'page_id' => $this->getArticleId() ), __METHOD__ );
1845
}
1846
1847
if ($oldFashionedRestrictions != '') {
1848
1849
foreach( explode( ':', trim( $oldFashionedRestrictions ) ) as $restrict ) {
1850
$temp = explode( '=', trim( $restrict ) );
1851
if(count($temp) == 1) {
1852
// old old format should be treated as edit/move restriction
1853
$this->mRestrictions['edit'] = explode( ',', trim( $temp[0] ) );
1854
$this->mRestrictions['move'] = explode( ',', trim( $temp[0] ) );
1855
} else {
1856
$this->mRestrictions[$temp[0]] = explode( ',', trim( $temp[1] ) );
1857
}
1858
}
1859
1860
$this->mOldRestrictions = true;
1861
1862
}
1863
1864
if( $dbr->numRows( $res ) ) {
1865
# Current system - load second to make them override.
1866
$now = wfTimestampNow();
1867
$purgeExpired = false;
1868
1869
foreach( $res as $row ) {
1870
# Cycle through all the restrictions.
1871
1872
// Don't take care of restrictions types that aren't in $wgRestrictionTypes
1873
if( !in_array( $row->pr_type, $wgRestrictionTypes ) )
1874
continue;
1875
1876
// This code should be refactored, now that it's being used more generally,
1877
// But I don't really see any harm in leaving it in Block for now -werdna
1878
$expiry = Block::decodeExpiry( $row->pr_expiry );
1879
1880
// Only apply the restrictions if they haven't expired!
1881
if ( !$expiry || $expiry > $now ) {
1882
$this->mRestrictionsExpiry[$row->pr_type] = $expiry;
1883
$this->mRestrictions[$row->pr_type] = explode( ',', trim( $row->pr_level ) );
1884
1885
$this->mCascadeRestriction |= $row->pr_cascade;
1886
} else {
1887
// Trigger a lazy purge of expired restrictions
1888
$purgeExpired = true;
1889
}
1890
}
1891
1892
if( $purgeExpired ) {
1893
Title::purgeExpiredRestrictions();
1894
}
1895
}
1896
1897
$this->mRestrictionsLoaded = true;
1898
}
1899
1900
/**
1901
* Load restrictions from the page_restrictions table
1902
*/
1903
public function loadRestrictions( $oldFashionedRestrictions = NULL ) {
1904
if( !$this->mRestrictionsLoaded ) {
1905
if ($this->exists()) {
1906
$dbr = wfGetDB( DB_SLAVE );
1907
1908
$res = $dbr->select( 'page_restrictions', '*',
1909
array ( 'pr_page' => $this->getArticleId() ), __METHOD__ );
1910
1911
$this->loadRestrictionsFromRow( $res, $oldFashionedRestrictions );
1912
} else {
1913
$title_protection = $this->getTitleProtection();
1914
1915
if (is_array($title_protection)) {
1916
extract($title_protection);
1917
1918
$now = wfTimestampNow();
1919
$expiry = Block::decodeExpiry($pt_expiry);
1920
1921
if (!$expiry || $expiry > $now) {
1922
// Apply the restrictions
1923
$this->mRestrictionsExpiry['create'] = $expiry;
1924
$this->mRestrictions['create'] = explode(',', trim($pt_create_perm) );
1925
} else { // Get rid of the old restrictions
1926
Title::purgeExpiredRestrictions();
1927
}
1928
} else {
1929
$this->mRestrictionsExpiry['create'] = Block::decodeExpiry('');
1930
}
1931
$this->mRestrictionsLoaded = true;
1932
}
1933
}
1934
}
1935
1936
/**
1937
* Purge expired restrictions from the page_restrictions table
1938
*/
1939
static function purgeExpiredRestrictions() {
1940
$dbw = wfGetDB( DB_MASTER );
1941
$dbw->delete( 'page_restrictions',
1942
array( 'pr_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1943
__METHOD__ );
1944
1945
$dbw->delete( 'protected_titles',
1946
array( 'pt_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1947
__METHOD__ );
1948
}
1949
1950
/**
1951
* Accessor/initialisation for mRestrictions
1952
*
1953
* @param $action \type{\string} action that permission needs to be checked for
1954
* @return \type{\arrayof{\string}} the array of groups allowed to edit this article
1955
*/
1956
public function getRestrictions( $action ) {
1957
if( !$this->mRestrictionsLoaded ) {
1958
$this->loadRestrictions();
1959
}
1960
return isset( $this->mRestrictions[$action] )
1961
? $this->mRestrictions[$action]
1962
: array();
1963
}
1964
1965
/**
1966
* Get the expiry time for the restriction against a given action
1967
* @return 14-char timestamp, or 'infinity' if the page is protected forever
1968
* or not protected at all, or false if the action is not recognised.
1969
*/
1970
public function getRestrictionExpiry( $action ) {
1971
if( !$this->mRestrictionsLoaded ) {
1972
$this->loadRestrictions();
1973
}
1974
return isset( $this->mRestrictionsExpiry[$action] ) ? $this->mRestrictionsExpiry[$action] : false;
1975
}
1976
1977
/**
1978
* Is there a version of this page in the deletion archive?
1979
* @return \type{\int} the number of archived revisions
1980
*/
1981
public function isDeleted() {
1982
if( $this->getNamespace() < 0 ) {
1983
$n = 0;
1984
} else {
1985
$dbr = wfGetDB( DB_SLAVE );
1986
$n = $dbr->selectField( 'archive', 'COUNT(*)',
1987
array( 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ),
1988
__METHOD__
1989
);
1990
if( $this->getNamespace() == NS_FILE ) {
1991
$n += $dbr->selectField( 'filearchive', 'COUNT(*)',
1992
array( 'fa_name' => $this->getDBkey() ),
1993
__METHOD__
1994
);
1995
}
1996
}
1997
return (int)$n;
1998
}
1999
2000
/**
2001
* Is there a version of this page in the deletion archive?
2002
* @return bool
2003
*/
2004
public function isDeletedQuick() {
2005
if( $this->getNamespace() < 0 ) {
2006
return false;
2007
}
2008
$dbr = wfGetDB( DB_SLAVE );
2009
$deleted = (bool)$dbr->selectField( 'archive', '1',
2010
array( 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ),
2011
__METHOD__
2012
);
2013
if( !$deleted && $this->getNamespace() == NS_FILE ) {
2014
$deleted = (bool)$dbr->selectField( 'filearchive', '1',
2015
array( 'fa_name' => $this->getDBkey() ),
2016
__METHOD__
2017
);
2018
}
2019
return $deleted;
2020
}
2021
2022
/**
2023
* Get the article ID for this Title from the link cache,
2024
* adding it if necessary
2025
* @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select
2026
* for update
2027
* @return \type{\int} the ID
2028
*/
2029
public function getArticleID( $flags = 0 ) {
2030
if( $this->getNamespace() < 0 ) {
2031
return $this->mArticleID = 0;
2032
}
2033
$linkCache = LinkCache::singleton();
2034
if( $flags & GAID_FOR_UPDATE ) {
2035
$oldUpdate = $linkCache->forUpdate( true );
2036
$linkCache->clearLink( $this );
2037
$this->mArticleID = $linkCache->addLinkObj( $this );
2038
$linkCache->forUpdate( $oldUpdate );
2039
} else {
2040
if( -1 == $this->mArticleID ) {
2041
$this->mArticleID = $linkCache->addLinkObj( $this );
2042
}
2043
}
2044
return $this->mArticleID;
2045
}
2046
2047
/**
2048
* Is this an article that is a redirect page?
2049
* Uses link cache, adding it if necessary
2050
* @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
2051
* @return \type{\bool}
2052
*/
2053
public function isRedirect( $flags = 0 ) {
2054
if( !is_null($this->mRedirect) )
2055
return $this->mRedirect;
2056
# Calling getArticleID() loads the field from cache as needed
2057
if( !$this->getArticleID($flags) ) {
2058
return $this->mRedirect = false;
2059
}
2060
$linkCache = LinkCache::singleton();
2061
$this->mRedirect = (bool)$linkCache->getGoodLinkFieldObj( $this, 'redirect' );
2062
2063
return $this->mRedirect;
2064
}
2065
2066
/**
2067
* What is the length of this page?
2068
* Uses link cache, adding it if necessary
2069
* @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
2070
* @return \type{\bool}
2071
*/
2072
public function getLength( $flags = 0 ) {
2073
if( $this->mLength != -1 )
2074
return $this->mLength;
2075
# Calling getArticleID() loads the field from cache as needed
2076
if( !$this->getArticleID($flags) ) {
2077
return $this->mLength = 0;
2078
}
2079
$linkCache = LinkCache::singleton();
2080
$this->mLength = intval( $linkCache->getGoodLinkFieldObj( $this, 'length' ) );
2081
2082
return $this->mLength;
2083
}
2084
2085
/**
2086
* What is the page_latest field for this page?
2087
* @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
2088
* @return \type{\int}
2089
*/
2090
public function getLatestRevID( $flags = 0 ) {
2091
if( $this->mLatestID !== false )
2092
return $this->mLatestID;
2093
2094
$db = ($flags & GAID_FOR_UPDATE) ? wfGetDB(DB_MASTER) : wfGetDB(DB_SLAVE);
2095
$this->mLatestID = $db->selectField( 'page', 'page_latest', $this->pageCond(), __METHOD__ );
2096
return $this->mLatestID;
2097
}
2098
2099
/**
2100
* This clears some fields in this object, and clears any associated
2101
* keys in the "bad links" section of the link cache.
2102
*
2103
* - This is called from Article::insertNewArticle() to allow
2104
* loading of the new page_id. It's also called from
2105
* Article::doDeleteArticle()
2106
*
2107
* @param $newid \type{\int} the new Article ID
2108
*/
2109
public function resetArticleID( $newid ) {
2110
$linkCache = LinkCache::singleton();
2111
$linkCache->clearBadLink( $this->getPrefixedDBkey() );
2112
2113
if ( $newid === false ) { $this->mArticleID = -1; }
2114
else { $this->mArticleID = $newid; }
2115
$this->mRestrictionsLoaded = false;
2116
$this->mRestrictions = array();
2117
}
2118
2119
/**
2120
* Updates page_touched for this page; called from LinksUpdate.php
2121
* @return \type{\bool} true if the update succeded
2122
*/
2123
public function invalidateCache() {
2124
if( wfReadOnly() ) {
2125
return;
2126
}
2127
$dbw = wfGetDB( DB_MASTER );
2128
$success = $dbw->update( 'page',
2129
array( 'page_touched' => $dbw->timestamp() ),
2130
$this->pageCond(),
2131
__METHOD__
2132
);
2133
HTMLFileCache::clearFileCache( $this );
2134
return $success;
2135
}
2136
2137
/**
2138
* Prefix some arbitrary text with the namespace or interwiki prefix
2139
* of this object
2140
*
2141
* @param $name \type{\string} the text
2142
* @return \type{\string} the prefixed text
2143
* @private
2144
*/
2145
/* private */ function prefix( $name ) {
2146
$p = '';
2147
if ( '' != $this->mInterwiki ) {
2148
$p = $this->mInterwiki . ':';
2149
}
2150
if ( 0 != $this->mNamespace ) {
2151
$p .= $this->getNsText() . ':';
2152
}
2153
return $p . $name;
2154
}
2155
2156
/**
2157
* Secure and split - main initialisation function for this object
2158
*
2159
* Assumes that mDbkeyform has been set, and is urldecoded
2160
* and uses underscores, but not otherwise munged. This function
2161
* removes illegal characters, splits off the interwiki and
2162
* namespace prefixes, sets the other forms, and canonicalizes
2163
* everything.
2164
* @return \type{\bool} true on success
2165
*/
2166
private function secureAndSplit() {
2167
global $wgContLang, $wgLocalInterwiki, $wgCapitalLinks;
2168
2169
# Initialisation
2170
static $rxTc = false;
2171
if( !$rxTc ) {
2172
# Matching titles will be held as illegal.
2173
$rxTc = '/' .
2174
# Any character not allowed is forbidden...
2175
'[^' . Title::legalChars() . ']' .
2176
# URL percent encoding sequences interfere with the ability
2177
# to round-trip titles -- you can't link to them consistently.
2178
'|%[0-9A-Fa-f]{2}' .
2179
# XML/HTML character references produce similar issues.
2180
'|&[A-Za-z0-9\x80-\xff]+;' .
2181
'|&#[0-9]+;' .
2182
'|&#x[0-9A-Fa-f]+;' .
2183
'/S';
2184
}
2185
2186
$this->mInterwiki = $this->mFragment = '';
2187
$this->mNamespace = $this->mDefaultNamespace; # Usually NS_MAIN
2188
2189
$dbkey = $this->mDbkeyform;
2190
2191
# Strip Unicode bidi override characters.
2192
# Sometimes they slip into cut-n-pasted page titles, where the
2193
# override chars get included in list displays.
2194
$dbkey = preg_replace( '/\xE2\x80[\x8E\x8F\xAA-\xAE]/S', '', $dbkey );
2195
2196
# Clean up whitespace
2197
#
2198
$dbkey = preg_replace( '/[ _]+/', '_', $dbkey );
2199
$dbkey = trim( $dbkey, '_' );
2200
2201
if ( '' == $dbkey ) {
2202
return false;
2203
}
2204
2205
if( false !== strpos( $dbkey, UTF8_REPLACEMENT ) ) {
2206
# Contained illegal UTF-8 sequences or forbidden Unicode chars.
2207
return false;
2208
}
2209
2210
$this->mDbkeyform = $dbkey;
2211
2212
# Initial colon indicates main namespace rather than specified default
2213
# but should not create invalid {ns,title} pairs such as {0,Project:Foo}
2214
if ( ':' == $dbkey{0} ) {
2215
$this->mNamespace = NS_MAIN;
2216
$dbkey = substr( $dbkey, 1 ); # remove the colon but continue processing
2217
$dbkey = trim( $dbkey, '_' ); # remove any subsequent whitespace
2218
}
2219
2220
# Namespace or interwiki prefix
2221
$firstPass = true;
2222
$prefixRegexp = "/^(.+?)_*:_*(.*)$/S";
2223
do {
2224
$m = array();
2225
if ( preg_match( $prefixRegexp, $dbkey, $m ) ) {
2226
$p = $m[1];
2227
if ( $ns = $wgContLang->getNsIndex( $p ) ) {
2228
# Ordinary namespace
2229
$dbkey = $m[2];
2230
$this->mNamespace = $ns;
2231
# For Talk:X pages, check if X has a "namespace" prefix
2232
if( $ns == NS_TALK && preg_match( $prefixRegexp, $dbkey, $x ) ) {
2233
if( $wgContLang->getNsIndex( $x[1] ) )
2234
return false; # Disallow Talk:File:x type titles...
2235
else if( Interwiki::isValidInterwiki( $x[1] ) )
2236
return false; # Disallow Talk:Interwiki:x type titles...
2237
}
2238
} elseif( Interwiki::isValidInterwiki( $p ) ) {
2239
if( !$firstPass ) {
2240
# Can't make a local interwiki link to an interwiki link.
2241
# That's just crazy!
2242
return false;
2243
}
2244
2245
# Interwiki link
2246
$dbkey = $m[2];
2247
$this->mInterwiki = $wgContLang->lc( $p );
2248
2249
# Redundant interwiki prefix to the local wiki
2250
if ( 0 == strcasecmp( $this->mInterwiki, $wgLocalInterwiki ) ) {
2251
if( $dbkey == '' ) {
2252
# Can't have an empty self-link
2253
return false;
2254
}
2255
$this->mInterwiki = '';
2256
$firstPass = false;
2257
# Do another namespace split...
2258
continue;
2259
}
2260
2261
# If there's an initial colon after the interwiki, that also
2262
# resets the default namespace
2263
if ( $dbkey !== '' && $dbkey[0] == ':' ) {
2264
$this->mNamespace = NS_MAIN;
2265
$dbkey = substr( $dbkey, 1 );
2266
}
2267
}
2268
# If there's no recognized interwiki or namespace,
2269
# then let the colon expression be part of the title.
2270
}
2271
break;
2272
} while( true );
2273
2274
# We already know that some pages won't be in the database!
2275
#
2276
if ( '' != $this->mInterwiki || NS_SPECIAL == $this->mNamespace ) {
2277
$this->mArticleID = 0;
2278
}
2279
$fragment = strstr( $dbkey, '#' );
2280
if ( false !== $fragment ) {
2281
$this->setFragment( $fragment );
2282
$dbkey = substr( $dbkey, 0, strlen( $dbkey ) - strlen( $fragment ) );
2283
# remove whitespace again: prevents "Foo_bar_#"
2284
# becoming "Foo_bar_"
2285
$dbkey = preg_replace( '/_*$/', '', $dbkey );
2286
}
2287
2288
# Reject illegal characters.
2289
#
2290
if( preg_match( $rxTc, $dbkey ) ) {
2291
return false;
2292
}
2293
2294
/**
2295
* Pages with "/./" or "/../" appearing in the URLs will often be un-
2296
* reachable due to the way web browsers deal with 'relative' URLs.
2297
* Also, they conflict with subpage syntax. Forbid them explicitly.
2298
*/
2299
if ( strpos( $dbkey, '.' ) !== false &&
2300
( $dbkey === '.' || $dbkey === '..' ||
2301
strpos( $dbkey, './' ) === 0 ||
2302
strpos( $dbkey, '../' ) === 0 ||
2303
strpos( $dbkey, '/./' ) !== false ||
2304
strpos( $dbkey, '/../' ) !== false ||
2305
substr( $dbkey, -2 ) == '/.' ||
2306
substr( $dbkey, -3 ) == '/..' ) )
2307
{
2308
return false;
2309
}
2310
2311
/**
2312
* Magic tilde sequences? Nu-uh!
2313
*/
2314
if( strpos( $dbkey, '~~~' ) !== false ) {
2315
return false;
2316
}
2317
2318
/**
2319
* Limit the size of titles to 255 bytes.
2320
* This is typically the size of the underlying database field.
2321
* We make an exception for special pages, which don't need to be stored
2322
* in the database, and may edge over 255 bytes due to subpage syntax
2323
* for long titles, e.g. [[Special:Block/Long name]]
2324
*/
2325
if ( ( $this->mNamespace != NS_SPECIAL && strlen( $dbkey ) > 255 ) ||
2326
strlen( $dbkey ) > 512 )
2327
{
2328
return false;
2329
}
2330
2331
/**
2332
* Normally, all wiki links are forced to have
2333
* an initial capital letter so [[foo]] and [[Foo]]
2334
* point to the same place.
2335
*
2336
* Don't force it for interwikis, since the other
2337
* site might be case-sensitive.
2338
*/
2339
$this->mUserCaseDBKey = $dbkey;
2340
if( $wgCapitalLinks && $this->mInterwiki == '') {
2341
$dbkey = $wgContLang->ucfirst( $dbkey );
2342
}
2343
2344
/**
2345
* Can't make a link to a namespace alone...
2346
* "empty" local links can only be self-links
2347
* with a fragment identifier.
2348
*/
2349
if( $dbkey == '' &&
2350
$this->mInterwiki == '' &&
2351
$this->mNamespace != NS_MAIN ) {
2352
return false;
2353
}
2354
// Allow IPv6 usernames to start with '::' by canonicalizing IPv6 titles.
2355
// IP names are not allowed for accounts, and can only be referring to
2356
// edits from the IP. Given '::' abbreviations and caps/lowercaps,
2357
// there are numerous ways to present the same IP. Having sp:contribs scan
2358
// them all is silly and having some show the edits and others not is
2359
// inconsistent. Same for talk/userpages. Keep them normalized instead.
2360
$dbkey = ($this->mNamespace == NS_USER || $this->mNamespace == NS_USER_TALK) ?
2361
IP::sanitizeIP( $dbkey ) : $dbkey;
2362
// Any remaining initial :s are illegal.
2363
if ( $dbkey !== '' && ':' == $dbkey{0} ) {
2364
return false;
2365
}
2366
2367
# Fill fields
2368
$this->mDbkeyform = $dbkey;
2369
$this->mUrlform = wfUrlencode( $dbkey );
2370
2371
$this->mTextform = str_replace( '_', ' ', $dbkey );
2372
2373
return true;
2374
}
2375
2376
/**
2377
* Set the fragment for this title. Removes the first character from the
2378
* specified fragment before setting, so it assumes you're passing it with
2379
* an initial "#".
2380
*
2381
* Deprecated for public use, use Title::makeTitle() with fragment parameter.
2382
* Still in active use privately.
2383
*
2384
* @param $fragment \type{\string} text
2385
*/
2386
public function setFragment( $fragment ) {
2387
$this->mFragment = str_replace( '_', ' ', substr( $fragment, 1 ) );
2388
}
2389
2390
/**
2391
* Get a Title object associated with the talk page of this article
2392
* @return \type{Title} the object for the talk page
2393
*/
2394
public function getTalkPage() {
2395
return Title::makeTitle( MWNamespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
2396
}
2397
2398
/**
2399
* Get a title object associated with the subject page of this
2400
* talk page
2401
*
2402
* @return \type{Title} the object for the subject page
2403
*/
2404
public function getSubjectPage() {
2405
// Is this the same title?
2406
$subjectNS = MWNamespace::getSubject( $this->getNamespace() );
2407
if( $this->getNamespace() == $subjectNS ) {
2408
return $this;
2409
}
2410
return Title::makeTitle( $subjectNS, $this->getDBkey() );
2411
}
2412
2413
/**
2414
* Get an array of Title objects linking to this Title
2415
* Also stores the IDs in the link cache.
2416
*
2417
* WARNING: do not use this function on arbitrary user-supplied titles!
2418
* On heavily-used templates it will max out the memory.
2419
*
2420
* @param array $options may be FOR UPDATE
2421
* @return \type{\arrayof{Title}} the Title objects linking here
2422
*/
2423
public function getLinksTo( $options = array(), $table = 'pagelinks', $prefix = 'pl' ) {
2424
$linkCache = LinkCache::singleton();
2425
2426
if ( count( $options ) > 0 ) {
2427
$db = wfGetDB( DB_MASTER );
2428
} else {
2429
$db = wfGetDB( DB_SLAVE );
2430
}
2431
2432
$res = $db->select( array( 'page', $table ),
2433
array( 'page_namespace', 'page_title', 'page_id', 'page_len', 'page_is_redirect' ),
2434
array(
2435
"{$prefix}_from=page_id",
2436
"{$prefix}_namespace" => $this->getNamespace(),
2437
"{$prefix}_title" => $this->getDBkey() ),
2438
__METHOD__,
2439
$options );
2440
2441
$retVal = array();
2442
if ( $db->numRows( $res ) ) {
2443
foreach( $res as $row ) {
2444
if ( $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ) ) {
2445
$linkCache->addGoodLinkObj( $row->page_id, $titleObj, $row->page_len, $row->page_is_redirect );
2446
$retVal[] = $titleObj;
2447
}
2448
}
2449
}
2450
$db->freeResult( $res );
2451
return $retVal;
2452
}
2453
2454
/**
2455
* Get an array of Title objects using this Title as a template
2456
* Also stores the IDs in the link cache.
2457
*
2458
* WARNING: do not use this function on arbitrary user-supplied titles!
2459
* On heavily-used templates it will max out the memory.
2460
*
2461
* @param array $options may be FOR UPDATE
2462
* @return \type{\arrayof{Title}} the Title objects linking here
2463
*/
2464
public function getTemplateLinksTo( $options = array() ) {
2465
return $this->getLinksTo( $options, 'templatelinks', 'tl' );
2466
}
2467
2468
/**
2469
* Get an array of Title objects referring to non-existent articles linked from this page
2470
*
2471
* @todo check if needed (used only in SpecialBrokenRedirects.php, and should use redirect table in this case)
2472
* @return \type{\arrayof{Title}} the Title objects
2473
*/
2474
public function getBrokenLinksFrom() {
2475
if ( $this->getArticleId() == 0 ) {
2476
# All links from article ID 0 are false positives
2477
return array();
2478
}
2479
2480
$dbr = wfGetDB( DB_SLAVE );
2481
$res = $dbr->select(
2482
array( 'page', 'pagelinks' ),
2483
array( 'pl_namespace', 'pl_title' ),
2484
array(
2485
'pl_from' => $this->getArticleId(),
2486
'page_namespace IS NULL'
2487
),
2488
__METHOD__, array(),
2489
array(
2490
'page' => array(
2491
'LEFT JOIN',
2492
array( 'pl_namespace=page_namespace', 'pl_title=page_title' )
2493
)
2494
)
2495
);
2496
2497
$retVal = array();
2498
foreach( $res as $row ) {
2499
$retVal[] = Title::makeTitle( $row->pl_namespace, $row->pl_title );
2500
}
2501
return $retVal;
2502
}
2503
2504
2505
/**
2506
* Get a list of URLs to purge from the Squid cache when this
2507
* page changes
2508
*
2509
* @return \type{\arrayof{\string}} the URLs
2510
*/
2511
public function getSquidURLs() {
2512
global $wgContLang;
2513
2514
$urls = array(
2515
$this->getInternalURL(),
2516
$this->getInternalURL( 'action=history' )
2517
);
2518
2519
// purge variant urls as well
2520
if($wgContLang->hasVariants()){
2521
$variants = $wgContLang->getVariants();
2522
foreach($variants as $vCode){
2523
if($vCode==$wgContLang->getCode()) continue; // we don't want default variant
2524
$urls[] = $this->getInternalURL('',$vCode);
2525
}
2526
}
2527
2528
return $urls;
2529
}
2530
2531
/**
2532
* Purge all applicable Squid URLs
2533
*/
2534
public function purgeSquid() {
2535
global $wgUseSquid;
2536
if ( $wgUseSquid ) {
2537
$urls = $this->getSquidURLs();
2538
$u = new SquidUpdate( $urls );
2539
$u->doUpdate();
2540
}
2541
}
2542
2543
/**
2544
* Move this page without authentication
2545
* @param &$nt \type{Title} the new page Title
2546
*/
2547
public function moveNoAuth( &$nt ) {
2548
return $this->moveTo( $nt, false );
2549
}
2550
2551
/**
2552
* Check whether a given move operation would be valid.
2553
* Returns true if ok, or a getUserPermissionsErrors()-like array otherwise
2554
* @param &$nt \type{Title} the new title
2555
* @param $auth \type{\bool} indicates whether $wgUser's permissions
2556
* should be checked
2557
* @param $reason \type{\string} is the log summary of the move, used for spam checking
2558
* @return \type{\mixed} True on success, getUserPermissionsErrors()-like array on failure
2559
*/
2560
public function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
2561
global $wgUser;
2562
2563
$errors = array();
2564
if( !$nt ) {
2565
// Normally we'd add this to $errors, but we'll get
2566
// lots of syntax errors if $nt is not an object
2567
return array(array('badtitletext'));
2568
}
2569
if( $this->equals( $nt ) ) {
2570
$errors[] = array('selfmove');
2571
}
2572
if( !$this->isMovable() ) {
2573
$errors[] = array( 'immobile-source-namespace', $this->getNsText() );
2574
}
2575
if ( $nt->getInterwiki() != '' ) {
2576
$errors[] = array( 'immobile-target-namespace-iw' );
2577
}
2578
if ( !$nt->isMovable() ) {
2579
$errors[] = array('immobile-target-namespace', $nt->getNsText() );
2580
}
2581
2582
$oldid = $this->getArticleID();
2583
$newid = $nt->getArticleID();
2584
2585
if ( strlen( $nt->getDBkey() ) < 1 ) {
2586
$errors[] = array('articleexists');
2587
}
2588
if ( ( '' == $this->getDBkey() ) ||
2589
( !$oldid ) ||
2590
( '' == $nt->getDBkey() ) ) {
2591
$errors[] = array('badarticleerror');
2592
}
2593
2594
// Image-specific checks
2595
if( $this->getNamespace() == NS_FILE ) {
2596
$file = wfLocalFile( $this );
2597
if( $file->exists() ) {
2598
if( $nt->getNamespace() != NS_FILE ) {
2599
$errors[] = array('imagenocrossnamespace');
2600
}
2601
if( $nt->getText() != wfStripIllegalFilenameChars( $nt->getText() ) ) {
2602
$errors[] = array('imageinvalidfilename');
2603
}
2604
if( !File::checkExtensionCompatibility( $file, $nt->getDBKey() ) ) {
2605
$errors[] = array('imagetypemismatch');
2606
}
2607
}
2608
}
2609
2610
if ( $auth ) {
2611
$errors = wfMergeErrorArrays( $errors,
2612
$this->getUserPermissionsErrors('move', $wgUser),
2613
$this->getUserPermissionsErrors('edit', $wgUser),
2614
$nt->getUserPermissionsErrors('move-target', $wgUser),
2615
$nt->getUserPermissionsErrors('edit', $wgUser) );
2616
}
2617
2618
$match = EditPage::matchSummarySpamRegex( $reason );
2619
if( $match !== false ) {
2620
// This is kind of lame, won't display nice
2621
$errors[] = array('spamprotectiontext');
2622
}
2623
2624
$err = null;
2625
if( !wfRunHooks( 'AbortMove', array( $this, $nt, $wgUser, &$err, $reason ) ) ) {
2626
$errors[] = array('hookaborted', $err);
2627
}
2628
2629
# The move is allowed only if (1) the target doesn't exist, or
2630
# (2) the target is a redirect to the source, and has no history
2631
# (so we can undo bad moves right after they're done).
2632
2633
if ( 0 != $newid ) { # Target exists; check for validity
2634
if ( ! $this->isValidMoveTarget( $nt ) ) {
2635
$errors[] = array('articleexists');
2636
}
2637
} else {
2638
$tp = $nt->getTitleProtection();
2639
$right = ( $tp['pt_create_perm'] == 'sysop' ) ? 'protect' : $tp['pt_create_perm'];
2640
if ( $tp and !$wgUser->isAllowed( $right ) ) {
2641
$errors[] = array('cantmove-titleprotected');
2642
}
2643
}
2644
if(empty($errors))
2645
return true;
2646
return $errors;
2647
}
2648
2649
/**
2650
* Move a title to a new location
2651
* @param &$nt \type{Title} the new title
2652
* @param $auth \type{\bool} indicates whether $wgUser's permissions
2653
* should be checked
2654
* @param $reason \type{\string} The reason for the move
2655
* @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title.
2656
* Ignored if the user doesn't have the suppressredirect right.
2657
* @return \type{\mixed} true on success, getUserPermissionsErrors()-like array on failure
2658
*/
2659
public function moveTo( &$nt, $auth = true, $reason = '', $createRedirect = true ) {
2660
$err = $this->isValidMoveOperation( $nt, $auth, $reason );
2661
if( is_array( $err ) ) {
2662
return $err;
2663
}
2664
2665
$pageid = $this->getArticleID();
2666
$protected = $this->isProtected();
2667
if( $nt->exists() ) {
2668
$err = $this->moveOverExistingRedirect( $nt, $reason, $createRedirect );
2669
$pageCountChange = ($createRedirect ? 0 : -1);
2670
} else { # Target didn't exist, do normal move.
2671
$err = $this->moveToNewTitle( $nt, $reason, $createRedirect );
2672
$pageCountChange = ($createRedirect ? 1 : 0);
2673
}
2674
2675
if( is_array( $err ) ) {
2676
return $err;
2677
}
2678
$redirid = $this->getArticleID();
2679
2680
// Category memberships include a sort key which may be customized.
2681
// If it's left as the default (the page title), we need to update
2682
// the sort key to match the new title.
2683
//
2684
// Be careful to avoid resetting cl_timestamp, which may disturb
2685
// time-based lists on some sites.
2686
//
2687
// Warning -- if the sort key is *explicitly* set to the old title,
2688
// we can't actually distinguish it from a default here, and it'll
2689
// be set to the new title even though it really shouldn't.
2690
// It'll get corrected on the next edit, but resetting cl_timestamp.
2691
$dbw = wfGetDB( DB_MASTER );
2692
$dbw->update( 'categorylinks',
2693
array(
2694
'cl_sortkey' => $nt->getPrefixedText(),
2695
'cl_timestamp=cl_timestamp' ),
2696
array(
2697
'cl_from' => $pageid,
2698
'cl_sortkey' => $this->getPrefixedText() ),
2699
__METHOD__ );
2700
2701
if( $protected ) {
2702
# Protect the redirect title as the title used to be...
2703
$dbw->insertSelect( 'page_restrictions', 'page_restrictions',
2704
array(
2705
'pr_page' => $redirid,
2706
'pr_type' => 'pr_type',
2707
'pr_level' => 'pr_level',
2708
'pr_cascade' => 'pr_cascade',
2709
'pr_user' => 'pr_user',
2710
'pr_expiry' => 'pr_expiry'
2711
),
2712
array( 'pr_page' => $pageid ),
2713
__METHOD__,
2714
array( 'IGNORE' )
2715
);
2716
# Update the protection log
2717
$log = new LogPage( 'protect' );
2718
$comment = wfMsgForContent( 'prot_1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
2719
if( $reason ) $comment .= wfMsgForContent( 'colon-separator' ) . $reason;
2720
$log->addEntry( 'move_prot', $nt, $comment, array($this->getPrefixedText()) ); // FIXME: $params?
2721
}
2722
2723
# Update watchlists
2724
$oldnamespace = $this->getNamespace() & ~1;
2725
$newnamespace = $nt->getNamespace() & ~1;
2726
$oldtitle = $this->getDBkey();
2727
$newtitle = $nt->getDBkey();
2728
2729
if( $oldnamespace != $newnamespace || $oldtitle != $newtitle ) {
2730
WatchedItem::duplicateEntries( $this, $nt );
2731
}
2732
2733
# Update search engine
2734
$u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
2735
$u->doUpdate();
2736
$u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
2737
$u->doUpdate();
2738
2739
# Update site_stats
2740
if( $this->isContentPage() && !$nt->isContentPage() ) {
2741
# No longer a content page
2742
# Not viewed, edited, removing
2743
$u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange );
2744
} elseif( !$this->isContentPage() && $nt->isContentPage() ) {
2745
# Now a content page
2746
# Not viewed, edited, adding
2747
$u = new SiteStatsUpdate( 0, 1, +1, $pageCountChange );
2748
} elseif( $pageCountChange ) {
2749
# Redirect added
2750
$u = new SiteStatsUpdate( 0, 0, 0, 1 );
2751
} else {
2752
# Nothing special
2753
$u = false;
2754
}
2755
if( $u )
2756
$u->doUpdate();
2757
# Update message cache for interface messages
2758
if( $nt->getNamespace() == NS_MEDIAWIKI ) {
2759
global $wgMessageCache;
2760
2761
# @bug 17860: old article can be deleted, if this the case,
2762
# delete it from message cache
2763
if ( $this->getArticleID === 0 ) {
2764
$wgMessageCache->replace( $this->getDBkey(), false );
2765
} else {
2766
$oldarticle = new Article( $this );
2767
$wgMessageCache->replace( $this->getDBkey(), $oldarticle->getContent() );
2768
}
2769
2770
$newarticle = new Article( $nt );
2771
$wgMessageCache->replace( $nt->getDBkey(), $newarticle->getContent() );
2772
}
2773
2774
global $wgUser;
2775
wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
2776
return true;
2777
}
2778
2779
/**
2780
* Move page to a title which is at present a redirect to the
2781
* source page
2782
*
2783
* @param &$nt \type{Title} the page to move to, which should currently
2784
* be a redirect
2785
* @param $reason \type{\string} The reason for the move
2786
* @param $createRedirect \type{\bool} Whether to leave a redirect at the old title.
2787
* Ignored if the user doesn't have the suppressredirect right
2788
*/
2789
private function moveOverExistingRedirect( &$nt, $reason = '', $createRedirect = true ) {
2790
global $wgUseSquid, $wgUser;
2791
$fname = 'Title::moveOverExistingRedirect';
2792
$comment = wfMsgForContent( '1movedto2_redir', $this->getPrefixedText(), $nt->getPrefixedText() );
2793
2794
if ( $reason ) {
2795
$comment .= ": $reason";
2796
}
2797
2798
$now = wfTimestampNow();
2799
$newid = $nt->getArticleID();
2800
$oldid = $this->getArticleID();
2801
$latest = $this->getLatestRevID();
2802
2803
$dbw = wfGetDB( DB_MASTER );
2804
2805
# Delete the old redirect. We don't save it to history since
2806
# by definition if we've got here it's rather uninteresting.
2807
# We have to remove it so that the next step doesn't trigger
2808
# a conflict on the unique namespace+title index...
2809
$dbw->delete( 'page', array( 'page_id' => $newid ), $fname );
2810
if ( !$dbw->cascadingDeletes() ) {
2811
$dbw->delete( 'revision', array( 'rev_page' => $newid ), __METHOD__ );
2812
global $wgUseTrackbacks;
2813
if ($wgUseTrackbacks)
2814
$dbw->delete( 'trackbacks', array( 'tb_page' => $newid ), __METHOD__ );
2815
$dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), __METHOD__ );
2816
$dbw->delete( 'imagelinks', array( 'il_from' => $newid ), __METHOD__ );
2817
$dbw->delete( 'categorylinks', array( 'cl_from' => $newid ), __METHOD__ );
2818
$dbw->delete( 'templatelinks', array( 'tl_from' => $newid ), __METHOD__ );
2819
$dbw->delete( 'externallinks', array( 'el_from' => $newid ), __METHOD__ );
2820
$dbw->delete( 'langlinks', array( 'll_from' => $newid ), __METHOD__ );
2821
$dbw->delete( 'redirect', array( 'rd_from' => $newid ), __METHOD__ );
2822
}
2823
2824
# Save a null revision in the page's history notifying of the move
2825
$nullRevision = Revision::newNullRevision( $dbw, $oldid, $comment, true );
2826
$nullRevId = $nullRevision->insertOn( $dbw );
2827
2828
$article = new Article( $this );
2829
wfRunHooks( 'NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser) );
2830
2831
# Change the name of the target page:
2832
$dbw->update( 'page',
2833
/* SET */ array(
2834
'page_touched' => $dbw->timestamp($now),
2835
'page_namespace' => $nt->getNamespace(),
2836
'page_title' => $nt->getDBkey(),
2837
'page_latest' => $nullRevId,
2838
),
2839
/* WHERE */ array( 'page_id' => $oldid ),
2840
$fname
2841
);
2842
$nt->resetArticleID( $oldid );
2843
2844
# Recreate the redirect, this time in the other direction.
2845
if( $createRedirect || !$wgUser->isAllowed('suppressredirect') ) {
2846
$mwRedir = MagicWord::get( 'redirect' );
2847
$redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2848
$redirectArticle = new Article( $this );
2849
$newid = $redirectArticle->insertOn( $dbw );
2850
$redirectRevision = new Revision( array(
2851
'page' => $newid,
2852
'comment' => $comment,
2853
'text' => $redirectText ) );
2854
$redirectRevision->insertOn( $dbw );
2855
$redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2856
2857
wfRunHooks( 'NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser) );
2858
2859
# Now, we record the link from the redirect to the new title.
2860
# It should have no other outgoing links...
2861
$dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
2862
$dbw->insert( 'pagelinks',
2863
array(
2864
'pl_from' => $newid,
2865
'pl_namespace' => $nt->getNamespace(),
2866
'pl_title' => $nt->getDBkey() ),
2867
$fname );
2868
$redirectSuppressed = false;
2869
} else {
2870
$this->resetArticleID( 0 );
2871
$redirectSuppressed = true;
2872
}
2873
2874
# Move an image if this is a file
2875
if( $this->getNamespace() == NS_FILE ) {
2876
$file = wfLocalFile( $this );
2877
if( $file->exists() ) {
2878
$status = $file->move( $nt );
2879
if( !$status->isOk() ) {
2880
$dbw->rollback();
2881
return $status->getErrorsArray();
2882
}
2883
}
2884
}
2885
2886
# Log the move
2887
$log = new LogPage( 'move' );
2888
$log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText(), 2 => $redirectSuppressed ) );
2889
2890
# Purge squid
2891
if ( $wgUseSquid ) {
2892
$urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
2893
$u = new SquidUpdate( $urls );
2894
$u->doUpdate();
2895
}
2896
2897
}
2898
2899
/**
2900
* Move page to non-existing title.
2901
* @param &$nt \type{Title} the new Title
2902
* @param $reason \type{\string} The reason for the move
2903
* @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title
2904
* Ignored if the user doesn't have the suppressredirect right
2905
*/
2906
private function moveToNewTitle( &$nt, $reason = '', $createRedirect = true ) {
2907
global $wgUseSquid, $wgUser;
2908
$fname = 'MovePageForm::moveToNewTitle';
2909
$comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
2910
if ( $reason ) {
2911
$comment .= wfMsgExt( 'colon-separator',
2912
array( 'escapenoentities', 'content' ) );
2913
$comment .= $reason;
2914
}
2915
2916
$newid = $nt->getArticleID();
2917
$oldid = $this->getArticleID();
2918
$latest = $this->getLatestRevId();
2919
2920
$dbw = wfGetDB( DB_MASTER );
2921
$now = $dbw->timestamp();
2922
2923
# Save a null revision in the page's history notifying of the move
2924
$nullRevision = Revision::newNullRevision( $dbw, $oldid, $comment, true );
2925
$nullRevId = $nullRevision->insertOn( $dbw );
2926
2927
$article = new Article( $this );
2928
wfRunHooks( 'NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser) );
2929
2930
# Rename page entry
2931
$dbw->update( 'page',
2932
/* SET */ array(
2933
'page_touched' => $now,
2934
'page_namespace' => $nt->getNamespace(),
2935
'page_title' => $nt->getDBkey(),
2936
'page_latest' => $nullRevId,
2937
),
2938
/* WHERE */ array( 'page_id' => $oldid ),
2939
$fname
2940
);
2941
$nt->resetArticleID( $oldid );
2942
2943
if( $createRedirect || !$wgUser->isAllowed('suppressredirect') ) {
2944
# Insert redirect
2945
$mwRedir = MagicWord::get( 'redirect' );
2946
$redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2947
$redirectArticle = new Article( $this );
2948
$newid = $redirectArticle->insertOn( $dbw );
2949
$redirectRevision = new Revision( array(
2950
'page' => $newid,
2951
'comment' => $comment,
2952
'text' => $redirectText ) );
2953
$redirectRevision->insertOn( $dbw );
2954
$redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2955
2956
wfRunHooks( 'NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser) );
2957
2958
# Record the just-created redirect's linking to the page
2959
$dbw->insert( 'pagelinks',
2960
array(
2961
'pl_from' => $newid,
2962
'pl_namespace' => $nt->getNamespace(),
2963
'pl_title' => $nt->getDBkey() ),
2964
$fname );
2965
$redirectSuppressed = false;
2966
} else {
2967
$this->resetArticleID( 0 );
2968
$redirectSuppressed = true;
2969
}
2970
2971
# Move an image if this is a file
2972
if( $this->getNamespace() == NS_FILE ) {
2973
$file = wfLocalFile( $this );
2974
if( $file->exists() ) {
2975
$status = $file->move( $nt );
2976
if( !$status->isOk() ) {
2977
$dbw->rollback();
2978
return $status->getErrorsArray();
2979
}
2980
}
2981
}
2982
2983
# Log the move
2984
$log = new LogPage( 'move' );
2985
$log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText(), 2 => $redirectSuppressed ) );
2986
2987
# Purge caches as per article creation
2988
Article::onArticleCreate( $nt );
2989
2990
# Purge old title from squid
2991
# The new title, and links to the new title, are purged in Article::onArticleCreate()
2992
$this->purgeSquid();
2993
2994
}
2995
2996
/**
2997
* Move this page's subpages to be subpages of $nt
2998
* @param $nt Title Move target
2999
* @param $auth bool Whether $wgUser's permissions should be checked
3000
* @param $reason string The reason for the move
3001
* @param $createRedirect bool Whether to create redirects from the old subpages to the new ones
3002
* Ignored if the user doesn't have the 'suppressredirect' right
3003
* @return mixed array with old page titles as keys, and strings (new page titles) or
3004
* arrays (errors) as values, or an error array with numeric indices if no pages were moved
3005
*/
3006
public function moveSubpages( $nt, $auth = true, $reason = '', $createRedirect = true ) {
3007
global $wgUser, $wgMaximumMovedPages;
3008
// Check permissions
3009
if( !$this->userCan( 'move-subpages' ) )
3010
return array( 'cant-move-subpages' );
3011
// Do the source and target namespaces support subpages?
3012
if( !MWNamespace::hasSubpages( $this->getNamespace() ) )
3013
return array( 'namespace-nosubpages',
3014
MWNamespace::getCanonicalName( $this->getNamespace() ) );
3015
if( !MWNamespace::hasSubpages( $nt->getNamespace() ) )
3016
return array( 'namespace-nosubpages',
3017
MWNamespace::getCanonicalName( $nt->getNamespace() ) );
3018
3019
$subpages = $this->getSubpages($wgMaximumMovedPages + 1);
3020
$retval = array();
3021
$count = 0;
3022
foreach( $subpages as $oldSubpage ) {
3023
$count++;
3024
if( $count > $wgMaximumMovedPages ) {
3025
$retval[$oldSubpage->getPrefixedTitle()] =
3026
array( 'movepage-max-pages',
3027
$wgMaximumMovedPages );
3028
break;
3029
}
3030
3031
if( $oldSubpage->getArticleId() == $this->getArticleId() )
3032
// When moving a page to a subpage of itself,
3033
// don't move it twice
3034
continue;
3035
$newPageName = preg_replace(
3036
'#^'.preg_quote( $this->getDBKey(), '#' ).'#',
3037
$nt->getDBKey(), $oldSubpage->getDBKey() );
3038
if( $oldSubpage->isTalkPage() ) {
3039
$newNs = $nt->getTalkPage()->getNamespace();
3040
} else {
3041
$newNs = $nt->getSubjectPage()->getNamespace();
3042
}
3043
# Bug 14385: we need makeTitleSafe because the new page names may
3044
# be longer than 255 characters.
3045
$newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
3046
3047
$success = $oldSubpage->moveTo( $newSubpage, $auth, $reason, $createRedirect );
3048
if( $success === true ) {
3049
$retval[$oldSubpage->getPrefixedText()] = $newSubpage->getPrefixedText();
3050
} else {
3051
$retval[$oldSubpage->getPrefixedText()] = $success;
3052
}
3053
}
3054
return $retval;
3055
}
3056
3057
/**
3058
* Checks if this page is just a one-rev redirect.
3059
* Adds lock, so don't use just for light purposes.
3060
*
3061
* @return \type{\bool} TRUE or FALSE
3062
*/
3063
public function isSingleRevRedirect() {
3064
$dbw = wfGetDB( DB_MASTER );
3065
# Is it a redirect?
3066
$row = $dbw->selectRow( 'page',
3067
array( 'page_is_redirect', 'page_latest', 'page_id' ),
3068
$this->pageCond(),
3069
__METHOD__,
3070
array( 'FOR UPDATE' )
3071
);
3072
# Cache some fields we may want
3073
$this->mArticleID = $row ? intval($row->page_id) : 0;
3074
$this->mRedirect = $row ? (bool)$row->page_is_redirect : false;
3075
$this->mLatestID = $row ? intval($row->page_latest) : false;
3076
if( !$this->mRedirect ) {
3077
return false;
3078
}
3079
# Does the article have a history?
3080
$row = $dbw->selectField( array( 'page', 'revision'),
3081
'rev_id',
3082
array( 'page_namespace' => $this->getNamespace(),
3083
'page_title' => $this->getDBkey(),
3084
'page_id=rev_page',
3085
'page_latest != rev_id'
3086
),
3087
__METHOD__,
3088
array( 'FOR UPDATE' )
3089
);
3090
# Return true if there was no history
3091
return ($row === false);
3092
}
3093
3094
/**
3095
* Checks if $this can be moved to a given Title
3096
* - Selects for update, so don't call it unless you mean business
3097
*
3098
* @param &$nt \type{Title} the new title to check
3099
* @return \type{\bool} TRUE or FALSE
3100
*/
3101
public function isValidMoveTarget( $nt ) {
3102
$dbw = wfGetDB( DB_MASTER );
3103
# Is it an existsing file?
3104
if( $nt->getNamespace() == NS_FILE ) {
3105
$file = wfLocalFile( $nt );
3106
if( $file->exists() ) {
3107
wfDebug( __METHOD__ . ": file exists\n" );
3108
return false;
3109
}
3110
}
3111
# Is it a redirect with no history?
3112
if( !$nt->isSingleRevRedirect() ) {
3113
wfDebug( __METHOD__ . ": not a one-rev redirect\n" );
3114
return false;
3115
}
3116
# Get the article text
3117
$rev = Revision::newFromTitle( $nt );
3118
$text = $rev->getText();
3119
# Does the redirect point to the source?
3120
# Or is it a broken self-redirect, usually caused by namespace collisions?
3121
$m = array();
3122
if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
3123
$redirTitle = Title::newFromText( $m[1] );
3124
if( !is_object( $redirTitle ) ||
3125
( $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() &&
3126
$redirTitle->getPrefixedDBkey() != $nt->getPrefixedDBkey() ) ) {
3127
wfDebug( __METHOD__ . ": redirect points to other page\n" );
3128
return false;
3129
}
3130
} else {
3131
# Fail safe
3132
wfDebug( __METHOD__ . ": failsafe\n" );
3133
return false;
3134
}
3135
return true;
3136
}
3137
3138
/**
3139
* Can this title be added to a user's watchlist?
3140
*
3141
* @return \type{\bool} TRUE or FALSE
3142
*/
3143
public function isWatchable() {
3144
return !$this->isExternal() && MWNamespace::isWatchable( $this->getNamespace() );
3145
}
3146
3147
/**
3148
* Get categories to which this Title belongs and return an array of
3149
* categories' names.
3150
*
3151
* @return \type{\array} array an array of parents in the form:
3152
* $parent => $currentarticle
3153
*/
3154
public function getParentCategories() {
3155
global $wgContLang;
3156
3157
$titlekey = $this->getArticleId();
3158
$dbr = wfGetDB( DB_SLAVE );
3159
$categorylinks = $dbr->tableName( 'categorylinks' );
3160
3161
# NEW SQL
3162
$sql = "SELECT * FROM $categorylinks"
3163
." WHERE cl_from='$titlekey'"
3164
." AND cl_from <> '0'"
3165
." ORDER BY cl_sortkey";
3166
3167
$res = $dbr->query( $sql );
3168
3169
if( $dbr->numRows( $res ) > 0 ) {
3170
foreach( $res as $row )
3171
//$data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$row->cl_to);
3172
$data[$wgContLang->getNSText( NS_CATEGORY ).':'.$row->cl_to] = $this->getFullText();
3173
$dbr->freeResult( $res );
3174
} else {
3175
$data = array();
3176
}
3177
return $data;
3178
}
3179
3180
/**
3181
* Get a tree of parent categories
3182
* @param $children \type{\array} an array with the children in the keys, to check for circular refs
3183
* @return \type{\array} Tree of parent categories
3184
*/
3185
public function getParentCategoryTree( $children = array() ) {
3186
$stack = array();
3187
$parents = $this->getParentCategories();
3188
3189
if( $parents ) {
3190
foreach( $parents as $parent => $current ) {
3191
if ( array_key_exists( $parent, $children ) ) {
3192
# Circular reference
3193
$stack[$parent] = array();
3194
} else {
3195
$nt = Title::newFromText($parent);
3196
if ( $nt ) {
3197
$stack[$parent] = $nt->getParentCategoryTree( $children + array($parent => 1) );
3198
}
3199
}
3200
}
3201
return $stack;
3202
} else {
3203
return array();
3204
}
3205
}
3206
3207
3208
/**
3209
* Get an associative array for selecting this title from
3210
* the "page" table
3211
*
3212
* @return \type{\array} Selection array
3213
*/
3214
public function pageCond() {
3215
if( $this->mArticleID > 0 ) {
3216
// PK avoids secondary lookups in InnoDB, shouldn't hurt other DBs
3217
return array( 'page_id' => $this->mArticleID );
3218
} else {
3219
return array( 'page_namespace' => $this->mNamespace, 'page_title' => $this->mDbkeyform );
3220
}
3221
}
3222
3223
/**
3224
* Get the revision ID of the previous revision
3225
*
3226
* @param $revId \type{\int} Revision ID. Get the revision that was before this one.
3227
* @param $flags \type{\int} GAID_FOR_UPDATE
3228
* @return \twotypes{\int,\bool} Old revision ID, or FALSE if none exists
3229
*/
3230
public function getPreviousRevisionID( $revId, $flags=0 ) {
3231
$db = ($flags & GAID_FOR_UPDATE) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_SLAVE );
3232
return $db->selectField( 'revision', 'rev_id',
3233
array(
3234
'rev_page' => $this->getArticleId($flags),
3235
'rev_id < ' . intval( $revId )
3236
),
3237
__METHOD__,
3238
array( 'ORDER BY' => 'rev_id DESC' )
3239
);
3240
}
3241
3242
/**
3243
* Get the revision ID of the next revision
3244
*
3245
* @param $revId \type{\int} Revision ID. Get the revision that was after this one.
3246
* @param $flags \type{\int} GAID_FOR_UPDATE
3247
* @return \twotypes{\int,\bool} Next revision ID, or FALSE if none exists
3248
*/
3249
public function getNextRevisionID( $revId, $flags=0 ) {
3250
$db = ($flags & GAID_FOR_UPDATE) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_SLAVE );
3251
return $db->selectField( 'revision', 'rev_id',
3252
array(
3253
'rev_page' => $this->getArticleId($flags),
3254
'rev_id > ' . intval( $revId )
3255
),
3256
__METHOD__,
3257
array( 'ORDER BY' => 'rev_id' )
3258
);
3259
}
3260
3261
/**
3262
* Get the first revision of the page
3263
*
3264
* @param $flags \type{\int} GAID_FOR_UPDATE
3265
* @return Revision (or NULL if page doesn't exist)
3266
*/
3267
public function getFirstRevision( $flags=0 ) {
3268
$db = ($flags & GAID_FOR_UPDATE) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_SLAVE );
3269
$pageId = $this->getArticleId($flags);
3270
if( !$pageId ) return NULL;
3271
$row = $db->selectRow( 'revision', '*',
3272
array( 'rev_page' => $pageId ),
3273
__METHOD__,
3274
array( 'ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => 1 )
3275
);
3276
if( !$row ) {
3277
return NULL;
3278
} else {
3279
return new Revision( $row );
3280
}
3281
}
3282
3283
/**
3284
* Check if this is a new page
3285
*
3286
* @return bool
3287
*/
3288
public function isNewPage() {
3289
$dbr = wfGetDB( DB_SLAVE );
3290
return (bool)$dbr->selectField( 'page', 'page_is_new', $this->pageCond(), __METHOD__ );
3291
}
3292
3293
/**
3294
* Get the oldest revision timestamp of this page
3295
*
3296
* @return string, MW timestamp
3297
*/
3298
public function getEarliestRevTime() {
3299
$dbr = wfGetDB( DB_SLAVE );
3300
if( $this->exists() ) {
3301
$min = $dbr->selectField( 'revision',
3302
'MIN(rev_timestamp)',
3303
array( 'rev_page' => $this->getArticleId() ),
3304
__METHOD__ );
3305
return wfTimestampOrNull( TS_MW, $min );
3306
}
3307
return null;
3308
}
3309
3310
/**
3311
* Get the number of revisions between the given revision IDs.
3312
* Used for diffs and other things that really need it.
3313
*
3314
* @param $old \type{\int} Revision ID.
3315
* @param $new \type{\int} Revision ID.
3316
* @return \type{\int} Number of revisions between these IDs.
3317
*/
3318
public function countRevisionsBetween( $old, $new ) {
3319
$dbr = wfGetDB( DB_SLAVE );
3320
return $dbr->selectField( 'revision', 'count(*)',
3321
'rev_page = ' . intval( $this->getArticleId() ) .
3322
' AND rev_id > ' . intval( $old ) .
3323
' AND rev_id < ' . intval( $new ),
3324
__METHOD__
3325
);
3326
}
3327
3328
/**
3329
* Compare with another title.
3330
*
3331
* @param \type{Title} $title
3332
* @return \type{\bool} TRUE or FALSE
3333
*/
3334
public function equals( Title $title ) {
3335
// Note: === is necessary for proper matching of number-like titles.
3336
return $this->getInterwiki() === $title->getInterwiki()
3337
&& $this->getNamespace() == $title->getNamespace()
3338
&& $this->getDBkey() === $title->getDBkey();
3339
}
3340
3341
/**
3342
* Callback for usort() to do title sorts by (namespace, title)
3343
*/
3344
public static function compare( $a, $b ) {
3345
if( $a->getNamespace() == $b->getNamespace() ) {
3346
return strcmp( $a->getText(), $b->getText() );
3347
} else {
3348
return $a->getNamespace() - $b->getNamespace();
3349
}
3350
}
3351
3352
/**
3353
* Return a string representation of this title
3354
*
3355
* @return \type{\string} String representation of this title
3356
*/
3357
public function __toString() {
3358
return $this->getPrefixedText();
3359
}
3360
3361
/**
3362
* Check if page exists. For historical reasons, this function simply
3363
* checks for the existence of the title in the page table, and will
3364
* thus return false for interwiki links, special pages and the like.
3365
* If you want to know if a title can be meaningfully viewed, you should
3366
* probably call the isKnown() method instead.
3367
*
3368
* @return \type{\bool} TRUE or FALSE
3369
*/
3370
public function exists() {
3371
return $this->getArticleId() != 0;
3372
}
3373
3374
/**
3375
* Should links to this title be shown as potentially viewable (i.e. as
3376
* "bluelinks"), even if there's no record by this title in the page
3377
* table?
3378
*
3379
* This function is semi-deprecated for public use, as well as somewhat
3380
* misleadingly named. You probably just want to call isKnown(), which
3381
* calls this function internally.
3382
*
3383
* (ISSUE: Most of these checks are cheap, but the file existence check
3384
* can potentially be quite expensive. Including it here fixes a lot of
3385
* existing code, but we might want to add an optional parameter to skip
3386
* it and any other expensive checks.)
3387
*
3388
* @return \type{\bool} TRUE or FALSE
3389
*/
3390
public function isAlwaysKnown() {
3391
if( $this->mInterwiki != '' ) {
3392
return true; // any interwiki link might be viewable, for all we know
3393
}
3394
switch( $this->mNamespace ) {
3395
case NS_MEDIA:
3396
case NS_FILE:
3397
return wfFindFile( $this ); // file exists, possibly in a foreign repo
3398
case NS_SPECIAL:
3399
return SpecialPage::exists( $this->getDBKey() ); // valid special page
3400
case NS_MAIN:
3401
return $this->mDbkeyform == ''; // selflink, possibly with fragment
3402
case NS_MEDIAWIKI:
3403
// If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
3404
// the full l10n of that language to be loaded. That takes much memory and
3405
// isn't needed. So we strip the language part away.
3406
// Also, extension messages which are not loaded, are shown as red, because
3407
// we don't call MessageCache::loadAllMessages.
3408
list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform, 2 );
3409
return wfMsgWeirdKey( $basename ); // known system message
3410
default:
3411
return false;
3412
}
3413
}
3414
3415
/**
3416
* Does this title refer to a page that can (or might) be meaningfully
3417
* viewed? In particular, this function may be used to determine if
3418
* links to the title should be rendered as "bluelinks" (as opposed to
3419
* "redlinks" to non-existent pages).
3420
*
3421
* @return \type{\bool} TRUE or FALSE
3422
*/
3423
public function isKnown() {
3424
return $this->exists() || $this->isAlwaysKnown();
3425
}
3426
3427
/**
3428
* Is this in a namespace that allows actual pages?
3429
*
3430
* @return \type{\bool} TRUE or FALSE
3431
*/
3432
public function canExist() {
3433
return $this->mNamespace >= 0 && $this->mNamespace != NS_MEDIA;
3434
}
3435
3436
/**
3437
* Update page_touched timestamps and send squid purge messages for
3438
* pages linking to this title. May be sent to the job queue depending
3439
* on the number of links. Typically called on create and delete.
3440
*/
3441
public function touchLinks() {
3442
$u = new HTMLCacheUpdate( $this, 'pagelinks' );
3443
$u->doUpdate();
3444
3445
if ( $this->getNamespace() == NS_CATEGORY ) {
3446
$u = new HTMLCacheUpdate( $this, 'categorylinks' );
3447
$u->doUpdate();
3448
}
3449
}
3450
3451
/**
3452
* Get the last touched timestamp
3453
* @param Database $db, optional db
3454
* @return \type{\string} Last touched timestamp
3455
*/
3456
public function getTouched( $db = NULL ) {
3457
$db = isset($db) ? $db : wfGetDB( DB_SLAVE );
3458
$touched = $db->selectField( 'page', 'page_touched', $this->pageCond(), __METHOD__ );
3459
return $touched;
3460
}
3461
3462
/**
3463
* Get the timestamp when this page was updated since the user last saw it.
3464
* @param User $user
3465
* @return mixed string/NULL
3466
*/
3467
public function getNotificationTimestamp( $user = NULL ) {
3468
global $wgUser, $wgShowUpdatedMarker;
3469
// Assume current user if none given
3470
if( !$user ) $user = $wgUser;
3471
// Check cache first
3472
$uid = $user->getId();
3473
if( isset($this->mNotificationTimestamp[$uid]) ) {
3474
return $this->mNotificationTimestamp[$uid];
3475
}
3476
if( !$uid || !$wgShowUpdatedMarker ) {
3477
return $this->mNotificationTimestamp[$uid] = false;
3478
}
3479
// Don't cache too much!
3480
if( count($this->mNotificationTimestamp) >= self::CACHE_MAX ) {
3481
$this->mNotificationTimestamp = array();
3482
}
3483
$dbr = wfGetDB( DB_SLAVE );
3484
$this->mNotificationTimestamp[$uid] = $dbr->selectField( 'watchlist',
3485
'wl_notificationtimestamp',
3486
array( 'wl_namespace' => $this->getNamespace(),
3487
'wl_title' => $this->getDBkey(),
3488
'wl_user' => $user->getId()
3489
),
3490
__METHOD__
3491
);
3492
return $this->mNotificationTimestamp[$uid];
3493
}
3494
3495
/**
3496
* Get the trackback URL for this page
3497
* @return \type{\string} Trackback URL
3498
*/
3499
public function trackbackURL() {
3500
global $wgScriptPath, $wgServer, $wgScriptExtension;
3501
3502
return "$wgServer$wgScriptPath/trackback$wgScriptExtension?article="
3503
. htmlspecialchars(urlencode($this->getPrefixedDBkey()));
3504
}
3505
3506
/**
3507
* Get the trackback RDF for this page
3508
* @return \type{\string} Trackback RDF
3509
*/
3510
public function trackbackRDF() {
3511
$url = htmlspecialchars($this->getFullURL());
3512
$title = htmlspecialchars($this->getText());
3513
$tburl = $this->trackbackURL();
3514
3515
// Autodiscovery RDF is placed in comments so HTML validator
3516
// won't barf. This is a rather icky workaround, but seems
3517
// frequently used by this kind of RDF thingy.
3518
//
3519
// Spec: http://www.sixapart.com/pronet/docs/trackback_spec
3520
return "<!--
3521
<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
3522
xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
3523
xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
3524
<rdf:Description
3525
rdf:about=\"$url\"
3526
dc:identifier=\"$url\"
3527
dc:title=\"$title\"
3528
trackback:ping=\"$tburl\" />
3529
</rdf:RDF>
3530
-->";
3531
}
3532
3533
/**
3534
* Generate strings used for xml 'id' names in monobook tabs
3535
* @return \type{\string} XML 'id' name
3536
*/
3537
public function getNamespaceKey() {
3538
global $wgContLang;
3539
switch ($this->getNamespace()) {
3540
case NS_MAIN:
3541
case NS_TALK:
3542
return 'nstab-main';
3543
case NS_USER:
3544
case NS_USER_TALK:
3545
return 'nstab-user';
3546
case NS_MEDIA:
3547
return 'nstab-media';
3548
case NS_SPECIAL:
3549
return 'nstab-special';
3550
case NS_PROJECT:
3551
case NS_PROJECT_TALK:
3552
return 'nstab-project';
3553
case NS_FILE:
3554
case NS_FILE_TALK:
3555
return 'nstab-image';
3556
case NS_MEDIAWIKI:
3557
case NS_MEDIAWIKI_TALK:
3558
return 'nstab-mediawiki';
3559
case NS_TEMPLATE:
3560
case NS_TEMPLATE_TALK:
3561
return 'nstab-template';
3562
case NS_HELP:
3563
case NS_HELP_TALK:
3564
return 'nstab-help';
3565
case NS_CATEGORY:
3566
case NS_CATEGORY_TALK:
3567
return 'nstab-category';
3568
default:
3569
return 'nstab-' . $wgContLang->lc( $this->getSubjectNsText() );
3570
}
3571
}
3572
3573
/**
3574
* Returns true if this title resolves to the named special page
3575
* @param $name \type{\string} The special page name
3576
*/
3577
public function isSpecial( $name ) {
3578
if ( $this->getNamespace() == NS_SPECIAL ) {
3579
list( $thisName, /* $subpage */ ) = SpecialPage::resolveAliasWithSubpage( $this->getDBkey() );
3580
if ( $name == $thisName ) {
3581
return true;
3582
}
3583
}
3584
return false;
3585
}
3586
3587
/**
3588
* If the Title refers to a special page alias which is not the local default,
3589
* @return \type{Title} A new Title which points to the local default. Otherwise, returns $this.
3590
*/
3591
public function fixSpecialName() {
3592
if ( $this->getNamespace() == NS_SPECIAL ) {
3593
$canonicalName = SpecialPage::resolveAlias( $this->mDbkeyform );
3594
if ( $canonicalName ) {
3595
$localName = SpecialPage::getLocalNameFor( $canonicalName );
3596
if ( $localName != $this->mDbkeyform ) {
3597
return Title::makeTitle( NS_SPECIAL, $localName );
3598
}
3599
}
3600
}
3601
return $this;
3602
}
3603
3604
/**
3605
* Is this Title in a namespace which contains content?
3606
* In other words, is this a content page, for the purposes of calculating
3607
* statistics, etc?
3608
*
3609
* @return \type{\bool} TRUE or FALSE
3610
*/
3611
public function isContentPage() {
3612
return MWNamespace::isContent( $this->getNamespace() );
3613
}
3614
3615
/**
3616
* Get all extant redirects to this Title
3617
*
3618
* @param $ns \twotypes{\int,\null} Single namespace to consider;
3619
* NULL to consider all namespaces
3620
* @return \type{\arrayof{Title}} Redirects to this title
3621
*/
3622
public function getRedirectsHere( $ns = null ) {
3623
$redirs = array();
3624
3625
$dbr = wfGetDB( DB_SLAVE );
3626
$where = array(
3627
'rd_namespace' => $this->getNamespace(),
3628
'rd_title' => $this->getDBkey(),
3629
'rd_from = page_id'
3630
);
3631
if ( !is_null($ns) ) $where['page_namespace'] = $ns;
3632
3633
$res = $dbr->select(
3634
array( 'redirect', 'page' ),
3635
array( 'page_namespace', 'page_title' ),
3636
$where,
3637
__METHOD__
3638
);
3639
3640
3641
foreach( $res as $row ) {
3642
$redirs[] = self::newFromRow( $row );
3643
}
3644
return $redirs;
3645
}
3646
3647
/**
3648
* Check if this Title is a valid redirect target
3649
*
3650
* @return \type{\bool} TRUE or FALSE
3651
*/
3652
public function isValidRedirectTarget() {
3653
global $wgInvalidRedirectTargets;
3654
3655
// invalid redirect targets are stored in a global array, but explicity disallow Userlogout here
3656
if( $this->isSpecial( 'Userlogout' ) ) {
3657
return false;
3658
}
3659
3660
foreach( $wgInvalidRedirectTargets as $target ) {
3661
if( $this->isSpecial( $target ) ) {
3662
return false;
3663
}
3664
}
3665
3666
return true;
3667
}
3668
3669
/**
3670
* Get a backlink cache object
3671
*/
3672
function getBacklinkCache() {
3673
if ( is_null( $this->mBacklinkCache ) ) {
3674
$this->mBacklinkCache = new BacklinkCache( $this );
3675
}
3676
return $this->mBacklinkCache;
3677
}
3678
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1