← Back to branch summary

~vcs-imports/stellarium-website/trunk

« back to all changes in this revision

Viewing changes to wiki/includes/specials/SpecialMergeHistory.php

  • Committer: Matthew Gates
  • Date: 2010-12-24 21:26:07 UTC
  • Revision ID: matthewg42@gmail.com-20101224212607-rjlt7qam0160puxb
added wiki directory but without LocalSettings.php; added util directory w/ 2 scripts

Show diffs side-by-side

added added

removed removed

Lines of Context:
wiki/includes/specials/SpecialMergeHistory.php
 
1
<?php
 
2
/**
 
3
 * Special page allowing users with the appropriate permissions to
 
4
 * merge article histories, with some restrictions
 
5
 *
 
6
 * @file
 
7
 * @ingroup SpecialPage
 
8
 */
 
9
 
 
10
/**
 
11
 * Constructor
 
12
 */
 
13
function wfSpecialMergehistory( $par ) {
 
14
        global $wgRequest;
 
15
 
 
16
        $form = new MergehistoryForm( $wgRequest, $par );
 
17
        $form->execute();
 
18
}
 
19
 
 
20
/**
 
21
 * The HTML form for Special:MergeHistory, which allows users with the appropriate
 
22
 * permissions to view and restore deleted content.
 
23
 * @ingroup SpecialPage
 
24
 */
 
25
class MergehistoryForm {
 
26
        var $mAction, $mTarget, $mDest, $mTimestamp, $mTargetID, $mDestID, $mComment;
 
27
        var $mTargetObj, $mDestObj;
 
28
 
 
29
        function MergehistoryForm( $request, $par = "" ) {
 
30
                global $wgUser;
 
31
 
 
32
                $this->mAction = $request->getVal( 'action' );
 
33
                $this->mTarget = $request->getVal( 'target' );
 
34
                $this->mDest = $request->getVal( 'dest' );
 
35
                $this->mSubmitted = $request->getBool( 'submitted' );
 
36
 
 
37
                $this->mTargetID = intval( $request->getVal( 'targetID' ) );
 
38
                $this->mDestID = intval( $request->getVal( 'destID' ) );
 
39
                $this->mTimestamp = $request->getVal( 'mergepoint' );
 
40
                if( !preg_match("/[0-9]{14}/",$this->mTimestamp) ) {
 
41
                        $this->mTimestamp = '';
 
42
                }
 
43
                $this->mComment = $request->getText( 'wpComment' );
 
44
 
 
45
                $this->mMerge = $request->wasPosted() && $wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
 
46
                // target page
 
47
                if( $this->mSubmitted ) {
 
48
                        $this->mTargetObj = Title::newFromURL( $this->mTarget );
 
49
                        $this->mDestObj = Title::newFromURL( $this->mDest );
 
50
                } else {
 
51
                        $this->mTargetObj = null;
 
52
                        $this->mDestObj = null;
 
53
                }
 
54
 
 
55
                $this->preCacheMessages();
 
56
        }
 
57
 
 
58
        /**
 
59
         * As we use the same small set of messages in various methods and that
 
60
         * they are called often, we call them once and save them in $this->message
 
61
         */
 
62
        function preCacheMessages() {
 
63
                // Precache various messages
 
64
                if( !isset( $this->message ) ) {
 
65
                        $this->message['last'] = wfMsgExt( 'last', array( 'escape') );
 
66
                }
 
67
        }
 
68
 
 
69
        function execute() {
 
70
                global $wgOut;
 
71
 
 
72
                $wgOut->setPagetitle( wfMsgHtml( "mergehistory" ) );
 
73
 
 
74
                if( $this->mTargetID && $this->mDestID && $this->mAction=="submit" && $this->mMerge ) {
 
75
                        return $this->merge();
 
76
                }
 
77
 
 
78
                if ( !$this->mSubmitted ) {
 
79
                        $this->showMergeForm();
 
80
                        return;
 
81
                }
 
82
 
 
83
                $errors = array();
 
84
                if ( !$this->mTargetObj instanceof Title ) {
 
85
                        $errors[] = wfMsgExt( 'mergehistory-invalid-source', array( 'parse' ) );
 
86
                } elseif( !$this->mTargetObj->exists() ) {
 
87
                        $errors[] = wfMsgExt( 'mergehistory-no-source', array( 'parse' ),
 
88
                                wfEscapeWikiText( $this->mTargetObj->getPrefixedText() )
 
89
                        );
 
90
                }
 
91
 
 
92
                if ( !$this->mDestObj instanceof Title) {
 
93
                        $errors[] = wfMsgExt( 'mergehistory-invalid-destination', array( 'parse' ) );
 
94
                } elseif( !$this->mDestObj->exists() ) {
 
95
                        $errors[] = wfMsgExt( 'mergehistory-no-destination', array( 'parse' ),
 
96
                                wfEscapeWikiText( $this->mDestObj->getPrefixedText() )
 
97
                        );
 
98
                }
 
99
                
 
100
                if ( $this->mTargetObj && $this->mDestObj && $this->mTargetObj->equals( $this->mDestObj ) ) {
 
101
                        $errors[] = wfMsgExt( 'mergehistory-same-destination', array( 'parse' ) );
 
102
                }
 
103
 
 
104
                if ( count( $errors ) ) {
 
105
                        $this->showMergeForm();
 
106
                        $wgOut->addHTML( implode( "\n", $errors ) );
 
107
                } else {
 
108
                        $this->showHistory();
 
109
                }
 
110
 
 
111
        }
 
112
 
 
113
        function showMergeForm() {
 
114
                global $wgOut, $wgScript;
 
115
 
 
116
                $wgOut->addWikiMsg( 'mergehistory-header' );
 
117
 
 
118
                $wgOut->addHTML(
 
119
                        Xml::openElement( 'form', array(
 
120
                                'method' => 'get',
 
121
                                'action' => $wgScript ) ) .
 
122
                        '<fieldset>' .
 
123
                        Xml::element( 'legend', array(),
 
124
                                wfMsg( 'mergehistory-box' ) ) .
 
125
                        Xml::hidden( 'title',
 
126
                                SpecialPage::getTitleFor( 'Mergehistory' )->getPrefixedDbKey() ) .
 
127
                        Xml::hidden( 'submitted', '1' ) .
 
128
                        Xml::hidden( 'mergepoint', $this->mTimestamp ) .
 
129
                        Xml::openElement( 'table' ) .
 
130
                        "<tr>
 
131
                                <td>".Xml::label( wfMsg( 'mergehistory-from' ), 'target' )."</td>
 
132
                                <td>".Xml::input( 'target', 30, $this->mTarget, array('id'=>'target') )."</td>
 
133
                        </tr><tr>
 
134
                                <td>".Xml::label( wfMsg( 'mergehistory-into' ), 'dest' )."</td>
 
135
                                <td>".Xml::input( 'dest', 30, $this->mDest, array('id'=>'dest') )."</td>
 
136
                        </tr><tr><td>" .
 
137
                        Xml::submitButton( wfMsg( 'mergehistory-go' ) ) .
 
138
                        "</td></tr>" .
 
139
                        Xml::closeElement( 'table' ) .
 
140
                        '</fieldset>' .
 
141
                        '</form>' );
 
142
        }
 
143
 
 
144
        private function showHistory() {
 
145
                global $wgLang, $wgUser, $wgOut;
 
146
 
 
147
                $this->sk = $wgUser->getSkin();
 
148
 
 
149
                $wgOut->setPagetitle( wfMsg( "mergehistory" ) );
 
150
 
 
151
                $this->showMergeForm();
 
152
 
 
153
                # List all stored revisions
 
154
                $revisions = new MergeHistoryPager( $this, array(), $this->mTargetObj, $this->mDestObj );
 
155
                $haveRevisions = $revisions && $revisions->getNumRows() > 0;
 
156
 
 
157
                $titleObj = SpecialPage::getTitleFor( "Mergehistory" );
 
158
                $action = $titleObj->getLocalURL( array( 'action' => 'submit' ) );
 
159
                # Start the form here
 
160
                $top = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'merge' ) );
 
161
                $wgOut->addHTML( $top );
 
162
 
 
163
                if( $haveRevisions ) {
 
164
                        # Format the user-visible controls (comment field, submission button)
 
165
                        # in a nice little table
 
166
                        $table =
 
167
                                Xml::openElement( 'fieldset' ) .
 
168
                                wfMsgExt( 'mergehistory-merge', array('parseinline'),
 
169
                                        $this->mTargetObj->getPrefixedText(), $this->mDestObj->getPrefixedText() ) .
 
170
                                Xml::openElement( 'table', array( 'id' => 'mw-mergehistory-table' ) ) .
 
171
                                        "<tr>
 
172
                                                <td class='mw-label'>" .
 
173
                                                        Xml::label( wfMsg( 'mergehistory-reason' ), 'wpComment' ) .
 
174
                                                "</td>
 
175
                                                <td class='mw-input'>" .
 
176
                                                        Xml::input( 'wpComment', 50, $this->mComment, array('id' => 'wpComment') ) .
 
177
                                                "</td>
 
178
                                        </tr>
 
179
                                        <tr>
 
180
                                                <td>&nbsp;</td>
 
181
                                                <td class='mw-submit'>" .
 
182
                                                        Xml::submitButton( wfMsg( 'mergehistory-submit' ), array( 'name' => 'merge', 'id' => 'mw-merge-submit' ) ) .
 
183
                                                "</td>
 
184
                                        </tr>" .
 
185
                                Xml::closeElement( 'table' ) .
 
186
                                Xml::closeElement( 'fieldset' );
 
187
 
 
188
                        $wgOut->addHTML( $table );
 
189
                }
 
190
 
 
191
                $wgOut->addHTML( "<h2 id=\"mw-mergehistory\">" . wfMsgHtml( "mergehistory-list" ) . "</h2>\n" );
 
192
 
 
193
                if( $haveRevisions ) {
 
194
                        $wgOut->addHTML( $revisions->getNavigationBar() );
 
195
                        $wgOut->addHTML( "<ul>" );
 
196
                        $wgOut->addHTML( $revisions->getBody() );
 
197
                        $wgOut->addHTML( "</ul>" );
 
198
                        $wgOut->addHTML( $revisions->getNavigationBar() );
 
199
                } else {
 
200
                        $wgOut->addWikiMsg( "mergehistory-empty" );
 
201
                }
 
202
 
 
203
                # Show relevant lines from the deletion log:
 
204
                $wgOut->addHTML( "<h2>" . htmlspecialchars( LogPage::logName( 'merge' ) ) . "</h2>\n" );
 
205
                LogEventsList::showLogExtract( $wgOut, 'merge', $this->mTargetObj->getPrefixedText() );
 
206
 
 
207
                # When we submit, go by page ID to avoid some nasty but unlikely collisions.
 
208
                # Such would happen if a page was renamed after the form loaded, but before submit
 
209
                $misc = Xml::hidden( 'targetID', $this->mTargetObj->getArticleID() );
 
210
                $misc .= Xml::hidden( 'destID', $this->mDestObj->getArticleID() );
 
211
                $misc .= Xml::hidden( 'target', $this->mTarget );
 
212
                $misc .= Xml::hidden( 'dest', $this->mDest );
 
213
                $misc .= Xml::hidden( 'wpEditToken', $wgUser->editToken() );
 
214
                $misc .= Xml::closeElement( 'form' );
 
215
                $wgOut->addHTML( $misc );
 
216
 
 
217
                return true;
 
218
        }
 
219
 
 
220
        function formatRevisionRow( $row ) {
 
221
                global $wgLang;
 
222
 
 
223
                $rev = new Revision( $row );
 
224
 
 
225
                $stxt = '';
 
226
                $last = $this->message['last'];
 
227
 
 
228
                $ts = wfTimestamp( TS_MW, $row->rev_timestamp );
 
229
                $checkBox = Xml::radio( "mergepoint", $ts, false );
 
230
 
 
231
                $pageLink = $this->sk->linkKnown(
 
232
                        $rev->getTitle(),
 
233
                        htmlspecialchars( $wgLang->timeanddate( $ts ) ),
 
234
                        array(),
 
235
                        array( 'oldid' => $rev->getId() )
 
236
                );
 
237
                if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 
238
                        $pageLink = '<span class="history-deleted">' . $pageLink . '</span>';
 
239
                }
 
240
 
 
241
                # Last link
 
242
                if( !$rev->userCan( Revision::DELETED_TEXT ) )
 
243
                        $last = $this->message['last'];
 
244
                else if( isset($this->prevId[$row->rev_id]) )
 
245
                        $last = $this->sk->linkKnown(
 
246
                                $rev->getTitle(),
 
247
                                $this->message['last'],
 
248
                                array(),
 
249
                                array(
 
250
                                        'diff' => $row->rev_id,
 
251
                                        'oldid' => $this->prevId[$row->rev_id]
 
252
                                )
 
253
                        );
 
254
 
 
255
                $userLink = $this->sk->revUserTools( $rev );
 
256
 
 
257
                if(!is_null($size = $row->rev_len)) {
 
258
                        $stxt = $this->sk->formatRevisionSize( $size );
 
259
                }
 
260
                $comment = $this->sk->revComment( $rev );
 
261
 
 
262
                return "<li>$checkBox ($last) $pageLink . . $userLink $stxt $comment</li>";
 
263
        }
 
264
 
 
265
        /**
 
266
         * Fetch revision text link if it's available to all users
 
267
         * @return string
 
268
         */
 
269
        function getPageLink( $row, $titleObj, $ts, $target ) {
 
270
                global $wgLang;
 
271
 
 
272
                if( !$this->userCan($row, Revision::DELETED_TEXT) ) {
 
273
                        return '<span class="history-deleted">' . $wgLang->timeanddate( $ts, true ) . '</span>';
 
274
                } else {
 
275
                        $link = $this->sk->linkKnown(
 
276
                                $titleObj,
 
277
                                $wgLang->timeanddate( $ts, true ),
 
278
                                array(),
 
279
                                array(
 
280
                                        'target' => $target,
 
281
                                        'timestamp' => $ts
 
282
                                )
 
283
                        );
 
284
                        if( $this->isDeleted($row, Revision::DELETED_TEXT) )
 
285
                                $link = '<span class="history-deleted">' . $link . '</span>';
 
286
                        return $link;
 
287
                }
 
288
        }
 
289
 
 
290
        function merge() {
 
291
                global $wgOut;
 
292
                # Get the titles directly from the IDs, in case the target page params
 
293
                # were spoofed. The queries are done based on the IDs, so it's best to
 
294
                # keep it consistent...
 
295
                $targetTitle = Title::newFromID( $this->mTargetID );
 
296
                $destTitle = Title::newFromID( $this->mDestID );
 
297
                if( is_null($targetTitle) || is_null($destTitle) )
 
298
                        return false; // validate these
 
299
                if( $targetTitle->getArticleId() == $destTitle->getArticleId() )
 
300
                        return false;
 
301
                # Verify that this timestamp is valid
 
302
                # Must be older than the destination page
 
303
                $dbw = wfGetDB( DB_MASTER );
 
304
                # Get timestamp into DB format
 
305
                $this->mTimestamp = $this->mTimestamp ? $dbw->timestamp($this->mTimestamp) : '';
 
306
                # Max timestamp should be min of destination page
 
307
                $maxtimestamp = $dbw->selectField( 'revision', 'MIN(rev_timestamp)',
 
308
                        array('rev_page' => $this->mDestID ),
 
309
                        __METHOD__ );
 
310
                # Destination page must exist with revisions
 
311
                if( !$maxtimestamp ) {
 
312
                        $wgOut->addWikiMsg('mergehistory-fail');
 
313
                        return false;
 
314
                }
 
315
                # Get the latest timestamp of the source
 
316
                $lasttimestamp = $dbw->selectField( array('page','revision'),
 
317
                        'rev_timestamp',
 
318
                        array('page_id' => $this->mTargetID, 'page_latest = rev_id' ),
 
319
                        __METHOD__ );
 
320
                # $this->mTimestamp must be older than $maxtimestamp
 
321
                if( $this->mTimestamp >= $maxtimestamp ) {
 
322
                        $wgOut->addWikiMsg('mergehistory-fail');
 
323
                        return false;
 
324
                }
 
325
                # Update the revisions
 
326
                if( $this->mTimestamp ) {
 
327
                        $timewhere = "rev_timestamp <= {$this->mTimestamp}";
 
328
                        $TimestampLimit = wfTimestamp(TS_MW,$this->mTimestamp);
 
329
                } else {
 
330
                        $timewhere = "rev_timestamp <= {$maxtimestamp}";
 
331
                        $TimestampLimit = wfTimestamp(TS_MW,$lasttimestamp);
 
332
                }
 
333
                # Do the moving...
 
334
                $dbw->update( 'revision',
 
335
                        array( 'rev_page' => $this->mDestID ),
 
336
                        array( 'rev_page' => $this->mTargetID,
 
337
                                $timewhere ),
 
338
                        __METHOD__ );
 
339
 
 
340
                $count = $dbw->affectedRows();
 
341
                # Make the source page a redirect if no revisions are left
 
342
                $haveRevisions = $dbw->selectField( 'revision',
 
343
                        'rev_timestamp',
 
344
                        array( 'rev_page' => $this->mTargetID  ),
 
345
                        __METHOD__,
 
346
                        array( 'FOR UPDATE' ) );
 
347
                if( !$haveRevisions ) {
 
348
                        if( $this->mComment ) {
 
349
                                $comment = wfMsgForContent( 'mergehistory-comment', $targetTitle->getPrefixedText(),
 
350
                                        $destTitle->getPrefixedText(), $this->mComment );
 
351
                        } else {
 
352
                                $comment = wfMsgForContent( 'mergehistory-autocomment', $targetTitle->getPrefixedText(),
 
353
                                        $destTitle->getPrefixedText() );
 
354
                        }
 
355
                        $mwRedir = MagicWord::get( 'redirect' );
 
356
                        $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $destTitle->getPrefixedText() . "]]\n";
 
357
                        $redirectArticle = new Article( $targetTitle );
 
358
                        $redirectRevision = new Revision( array(
 
359
                                'page'    => $this->mTargetID,
 
360
                                'comment' => $comment,
 
361
                                'text'    => $redirectText ) );
 
362
                        $redirectRevision->insertOn( $dbw );
 
363
                        $redirectArticle->updateRevisionOn( $dbw, $redirectRevision );
 
364
 
 
365
                        # Now, we record the link from the redirect to the new title.
 
366
                        # It should have no other outgoing links...
 
367
                        $dbw->delete( 'pagelinks', array( 'pl_from' => $this->mDestID ), __METHOD__ );
 
368
                        $dbw->insert( 'pagelinks',
 
369
                                array(
 
370
                                        'pl_from'      => $this->mDestID,
 
371
                                        'pl_namespace' => $destTitle->getNamespace(),
 
372
                                        'pl_title'     => $destTitle->getDBkey() ),
 
373
                                __METHOD__ );
 
374
                } else {
 
375
                        $targetTitle->invalidateCache(); // update histories
 
376
                }
 
377
                $destTitle->invalidateCache(); // update histories
 
378
                # Check if this did anything
 
379
                if( !$count ) {
 
380
                        $wgOut->addWikiMsg('mergehistory-fail');
 
381
                        return false;
 
382
                }
 
383
                # Update our logs
 
384
                $log = new LogPage( 'merge' );
 
385
                $log->addEntry( 'merge', $targetTitle, $this->mComment,
 
386
                        array($destTitle->getPrefixedText(),$TimestampLimit) );
 
387
 
 
388
                $wgOut->addHTML( wfMsgExt( 'mergehistory-success', array('parseinline'),
 
389
                        $targetTitle->getPrefixedText(), $destTitle->getPrefixedText(), $count ) );
 
390
 
 
391
                wfRunHooks( 'ArticleMergeComplete', array( $targetTitle, $destTitle ) );
 
392
 
 
393
                return true;
 
394
        }
 
395
}
 
396
 
 
397
class MergeHistoryPager extends ReverseChronologicalPager {
 
398
        public $mForm, $mConds;
 
399
 
 
400
        function __construct( $form, $conds = array(), $source, $dest ) {
 
401
                $this->mForm = $form;
 
402
                $this->mConds = $conds;
 
403
                $this->title = $source;
 
404
                $this->articleID = $source->getArticleID();
 
405
 
 
406
                $dbr = wfGetDB( DB_SLAVE );
 
407
                $maxtimestamp = $dbr->selectField( 'revision', 'MIN(rev_timestamp)',
 
408
                        array('rev_page' => $dest->getArticleID() ),
 
409
                        __METHOD__ );
 
410
                $this->maxTimestamp = $maxtimestamp;
 
411
 
 
412
                parent::__construct();
 
413
        }
 
414
 
 
415
        function getStartBody() {
 
416
                wfProfileIn( __METHOD__ );
 
417
                # Do a link batch query
 
418
                $this->mResult->seek( 0 );
 
419
                $batch = new LinkBatch();
 
420
                # Give some pointers to make (last) links
 
421
                $this->mForm->prevId = array();
 
422
                while( $row = $this->mResult->fetchObject() ) {
 
423
                        $batch->addObj( Title::makeTitleSafe( NS_USER, $row->rev_user_text ) );
 
424
                        $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->rev_user_text ) );
 
425
 
 
426
                        $rev_id = isset($rev_id) ? $rev_id : $row->rev_id;
 
427
                        if( $rev_id > $row->rev_id )
 
428
                                $this->mForm->prevId[$rev_id] = $row->rev_id;
 
429
                        else if( $rev_id < $row->rev_id )
 
430
                                $this->mForm->prevId[$row->rev_id] = $rev_id;
 
431
 
 
432
                        $rev_id = $row->rev_id;
 
433
                }
 
434
 
 
435
                $batch->execute();
 
436
                $this->mResult->seek( 0 );
 
437
 
 
438
                wfProfileOut( __METHOD__ );
 
439
                return '';
 
440
        }
 
441
 
 
442
        function formatRow( $row ) {
 
443
                $block = new Block;
 
444
                return $this->mForm->formatRevisionRow( $row );
 
445
        }
 
446
 
 
447
        function getQueryInfo() {
 
448
                $conds = $this->mConds;
 
449
                $conds['rev_page'] = $this->articleID;
 
450
                $conds[] = 'page_id = rev_page';
 
451
                $conds[] = "rev_timestamp < {$this->maxTimestamp}";
 
452
                return array(
 
453
                        'tables' => array('revision','page'),
 
454
                        'fields' => array( 'rev_minor_edit', 'rev_timestamp', 'rev_user', 'rev_user_text', 'rev_comment',
 
455
                                 'rev_id', 'rev_page', 'rev_parent_id', 'rev_text_id', 'rev_len', 'rev_deleted' ),
 
456
                        'conds' => $conds
 
457
                );
 
458
        }
 
459
 
 
460
        function getIndexField() {
 
461
                return 'rev_timestamp';
 
462
        }
 
463
}