summaryrefslogtreecommitdiff
path: root/extensions/Interwiki/Interwiki_body.php
blob: fd982811b16f3a5cd27911fd841fc1e999dbe08b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
<?php
/**
 * Implements Special:Interwiki
 * @ingroup SpecialPage
 */
class SpecialInterwiki extends SpecialPage {
	/**
	 * Constructor - sets up the new special page
	 */
	public function __construct() {
		parent::__construct( 'Interwiki' );
	}

	/**
	 * Different description will be shown on Special:SpecialPage depending on
	 * whether the user can modify the data.
	 * @return String
	 */
	function getDescription() {
		return $this->msg( $this->canModify() ?
			'interwiki' : 'interwiki-title-norights' )->plain();
	}

	/**
	 * Show the special page
	 *
	 * @param $par Mixed: parameter passed to the page or null
	 */
	public function execute( $par ) {
		$this->setHeaders();
		$this->outputHeader();

		$out = $this->getOutput();
		$request = $this->getRequest();

		$out->addModules( 'ext.interwiki.specialpage' );

		$action = $par ? $par : $request->getVal( 'action', $par );
		$return = $this->getPageTitle();

		switch( $action ) {
		case 'delete':
		case 'edit':
		case 'add':
			if ( $this->canModify( $out ) ) {
				$this->showForm( $action );
			}
			$out->returnToMain( false, $return );
			break;
		case 'submit':
			if ( !$this->canModify( $out ) ) {
				# Error msg added by canModify()
			} elseif ( !$request->wasPosted() ||
				!$this->getUser()->matchEditToken( $request->getVal( 'wpEditToken' ) )
			) {
				// Prevent cross-site request forgeries
				$out->addWikiMsg( 'sessionfailure' );
			} else {
				$this->doSubmit();
			}
			$out->returnToMain( false, $return );
			break;
		default:
			$this->showList();
			break;
		}
	}

	/**
	 * Returns boolean whether the user can modify the data.
	 * @param $out OutputPage|bool If $wgOut object given, it adds the respective error message.
	 * @throws PermissionsError
	 * @return bool
	 */
	public function canModify( $out = false ) {
		global $wgInterwikiCache;
		if ( !$this->getUser()->isAllowed( 'interwiki' ) ) {
			# Check permissions
			if ( $out ) {
				throw new PermissionsError( 'interwiki' );
			}

			return false;
		} elseif ( $wgInterwikiCache ) {
			# Editing the interwiki cache is not supported
			if ( $out ) {
				$out->addWikiMsg( 'interwiki-cached' );
			}

			return false;
		} elseif ( wfReadOnly() ) {
			# Is the database in read-only mode?
			if ( $out ) {
				$out->readOnlyPage();
			}
			return false;
		}
		return true;
	}

	/**
	 * @param $action string
	 */
	function showForm( $action ) {
		$request = $this->getRequest();

		$prefix = $request->getVal( 'prefix' );
		$wpPrefix = '';
		$label = array( 'class' => 'mw-label' );
		$input = array( 'class' => 'mw-input' );

		if ( $action === 'delete' ) {
			$topmessage = $this->msg( 'interwiki_delquestion', $prefix )->text();
			$intromessage = $this->msg( 'interwiki_deleting', $prefix )->escaped();
			$wpPrefix = Html::hidden( 'wpInterwikiPrefix', $prefix );
			$button = 'delete';
			$formContent = '';
		} elseif ( $action === 'edit' ) {
			$dbr = wfGetDB( DB_SLAVE );
			$row = $dbr->selectRow( 'interwiki', '*', array( 'iw_prefix' => $prefix ), __METHOD__ );

			if ( !$row ) {
				$this->error( 'interwiki_editerror', $prefix );
				return;
			}

			$prefix = $prefixElement = $row->iw_prefix;
			$defaulturl = $row->iw_url;
			$trans = $row->iw_trans;
			$local = $row->iw_local;
			$wpPrefix = Html::hidden( 'wpInterwikiPrefix', $row->iw_prefix );
			$topmessage = $this->msg( 'interwiki_edittext' )->text();
			$intromessage = $this->msg( 'interwiki_editintro' )->escaped();
			$button = 'edit';
		} elseif ( $action === 'add' ) {
			$prefix = $request->getVal( 'wpInterwikiPrefix', $request->getVal( 'prefix' ) );
			$prefixElement = Xml::input( 'wpInterwikiPrefix', 20, $prefix,
				array( 'tabindex' => 1, 'id' => 'mw-interwiki-prefix', 'maxlength' => 20 ) );
			$local = $request->getCheck( 'wpInterwikiLocal' );
			$trans = $request->getCheck( 'wpInterwikiTrans' );
			$defaulturl = $request->getVal( 'wpInterwikiURL', $this->msg( 'interwiki-defaulturl' )->text() );
			$topmessage = $this->msg( 'interwiki_addtext' )->text();
			$intromessage = $this->msg( 'interwiki_addintro' )->escaped();
			$button = 'interwiki_addbutton';
		}

		if ( $action === 'add' || $action === 'edit' ) {
			$formContent = Html::rawElement( 'tr', null,
				Html::element( 'td', $label, $this->msg( 'interwiki-prefix-label' )->text() ) .
				Html::rawElement( 'td', null, '<tt>' . $prefixElement . '</tt>' )
			) . Html::rawElement(
				'tr',
				null,
				Html::rawElement(
					'td',
					$label,
					Xml::label( $this->msg( 'interwiki-local-label' )->text(), 'mw-interwiki-local' )
				) .
				Html::rawElement(
					'td',
					$input,
					Xml::check( 'wpInterwikiLocal', $local, array( 'id' => 'mw-interwiki-local' ) )
				)
			) . Html::rawElement( 'tr', null,
				Html::rawElement(
					'td',
					$label,
					Xml::label( $this->msg( 'interwiki-trans-label' )->text(), 'mw-interwiki-trans' )
				) .
				Html::rawElement(
					'td',
					$input,  Xml::check( 'wpInterwikiTrans', $trans, array( 'id' => 'mw-interwiki-trans' ) ) )
			) . Html::rawElement( 'tr', null,
				Html::rawElement(
					'td',
					$label,
					Xml::label( $this->msg( 'interwiki-url-label' )->text(), 'mw-interwiki-url' )
				) .
				Html::rawElement( 'td', $input, Xml::input( 'wpInterwikiURL', 60, $defaulturl,
					array( 'tabindex' => 1, 'maxlength' => 200, 'id' => 'mw-interwiki-url' ) ) )
			);
		}

		$form = Xml::fieldset( $topmessage, Html::rawElement(
			'form',
			array(
				'id' => "mw-interwiki-{$action}form",
				'method' => 'post',
				'action' => $this->getPageTitle()->getLocalUrl( array(
					'action' => 'submit',
					'prefix' => $prefix
				) )
			),
			Html::rawElement( 'p', null, $intromessage ) .
			Html::rawElement( 'table', array( 'id' => "mw-interwiki-{$action}" ),
				$formContent . Html::rawElement( 'tr', null,
					Html::rawElement( 'td', $label, Xml::label( $this->msg( 'interwiki_reasonfield' )->text(),
						"mw-interwiki-{$action}reason" ) ) .
					Html::rawElement( 'td', $input, Xml::input( 'wpInterwikiReason', 60, '',
						array( 'tabindex' => 1, 'id' => "mw-interwiki-{$action}reason", 'maxlength' => 200 ) ) )
				) .	Html::rawElement( 'tr', null,
					Html::rawElement( 'td', null, '' ) .
					Html::rawElement( 'td', array( 'class' => 'mw-submit' ),
						Xml::submitButton( $this->msg( $button )->text(), array( 'id' => 'mw-interwiki-submit' ) ) )
				) . $wpPrefix .
				Html::hidden( 'wpEditToken', $this->getUser()->getEditToken() ) .
				Html::hidden( 'wpInterwikiAction', $action )
			)
		) );
		$this->getOutput()->addHTML( $form );
		return;
	}

	function doSubmit() {
		global $wgContLang, $wgMemc;

		$request = $this->getRequest();
		$prefix = $request->getVal( 'wpInterwikiPrefix' );
		$do = $request->getVal( 'wpInterwikiAction' );
		// Show an error if the prefix is invalid (only when adding one).
		// Invalid characters for a title should also be invalid for a prefix.
		// Whitespace, ':', '&' and '=' are invalid, too.
		// (Bug 30599).
		global $wgLegalTitleChars;
		$validPrefixChars = preg_replace( '/[ :&=]/', '', $wgLegalTitleChars );
		if ( preg_match( "/\s|[^$validPrefixChars]/", $prefix ) && $do === 'add' ) {
			$this->error( 'interwiki-badprefix', htmlspecialchars( $prefix ) );
			$this->showForm( $do );
			return;
		}
		$reason = $request->getText( 'wpInterwikiReason' );
		$selfTitle = $this->getPageTitle();
		$dbw = wfGetDB( DB_MASTER );
		switch( $do ) {
		case 'delete':
			$dbw->delete( 'interwiki', array( 'iw_prefix' => $prefix ), __METHOD__ );

			if ( $dbw->affectedRows() === 0 ) {
				$this->error( 'interwiki_delfailed', $prefix );
				$this->showForm( $do );
			} else {
				$this->getOutput()->addWikiMsg( 'interwiki_deleted', $prefix );
				$log = new LogPage( 'interwiki' );
				$log->addEntry( 'iw_delete', $selfTitle, $reason, array( $prefix ) );
				$wgMemc->delete( wfMemcKey( 'interwiki', $prefix ) );
			}
			break;
		case 'add':
			$prefix = $wgContLang->lc( $prefix );
			// N.B.: no break!
		case 'edit':
			$theurl = $request->getVal( 'wpInterwikiURL' );
			$local = $request->getCheck( 'wpInterwikiLocal' ) ? 1 : 0;
			$trans = $request->getCheck( 'wpInterwikiTrans' ) ? 1 : 0;
			$data = array(
				'iw_prefix' => $prefix,
				'iw_url' => $theurl,
				'iw_local' => $local,
				'iw_trans' => $trans
			);

			if ( $prefix === '' || $theurl === '' ) {
				$this->error( 'interwiki-submit-empty' );
				$this->showForm( $do );
				return;
			}

			// Simple URL validation: check that the protocol is one of
			// the supported protocols for this wiki.
			// (bug 30600)
			if ( !wfParseUrl( $theurl ) ) {
				$this->error( 'interwiki-submit-invalidurl' );
				$this->showForm( $do );
				return;
			}

			if ( $do === 'add' ) {
				$dbw->insert( 'interwiki', $data, __METHOD__, 'IGNORE' );
			} else { // $do === 'edit'
				$dbw->update( 'interwiki', $data, array( 'iw_prefix' => $prefix ), __METHOD__, 'IGNORE' );
			}

			// used here: interwiki_addfailed, interwiki_added, interwiki_edited
			if ( $dbw->affectedRows() === 0 ) {
				$this->error( "interwiki_{$do}failed", $prefix );
				$this->showForm( $do );
			} else {
				$this->getOutput()->addWikiMsg( "interwiki_{$do}ed", $prefix );
				$log = new LogPage( 'interwiki' );
				$log->addEntry( 'iw_' . $do, $selfTitle, $reason, array( $prefix, $theurl, $trans, $local ) );
				$wgMemc->delete( wfMemcKey( 'interwiki', $prefix ) );
			}
			break;
		}
	}

	function showList() {
		$canModify = $this->canModify();

		$this->getOutput()->addWikiMsg( 'interwiki_intro' );
		// Make collapsible.
		$this->getOutput()->addHTML(
			Html::openElement(
				'div', array(
					'class' => 'mw-collapsible mw-collapsed',
					'data-collapsetext' => $this->msg( 'interwiki-legend-hide' )->escaped(),
					'data-expandtext' => $this->msg('interwiki-legend-show' )->escaped()
		) ) );
		$this->getOutput()->addHTML(
			Html::rawElement(
				'table', array( 'class' => 'mw-interwikitable wikitable intro' ),
				$this->addInfoRow( 'start', 'interwiki_prefix', 'interwiki_prefix_intro' ) . "\n" .
				$this->addInfoRow( 'start', 'interwiki_url', 'interwiki_url_intro' ) . "\n" .
				$this->addInfoRow( 'start', 'interwiki_local', 'interwiki_local_intro' ) . "\n" .
				$this->addInfoRow( 'end', 'interwiki_0', 'interwiki_local_0_intro' ) . "\n" .
				$this->addInfoRow( 'end', 'interwiki_1', 'interwiki_local_1_intro' ) . "\n" .
				$this->addInfoRow( 'start', 'interwiki_trans', 'interwiki_trans_intro' ) . "\n" .
				$this->addInfoRow( 'end', 'interwiki_0', 'interwiki_trans_0_intro' ) . "\n" .
				$this->addInfoRow( 'end', 'interwiki_1', 'interwiki_trans_1_intro' ) . "\n"
			)
		);

		$this->getOutput()->addHTML( Html::closeElement( 'div' ) ); // end collapsible.

		if ( $canModify ) {
			$this->getOutput()->addHTML( "<br />" . $this->msg( 'interwiki_intro_footer' )->parse() );
			$addtext = $this->msg( 'interwiki_addtext' )->escaped();
			$addlink = Linker::linkKnown( $this->getPageTitle( 'add' ), $addtext );
			$this->getOutput()->addHTML( '<p class="mw-interwiki-addlink">' . $addlink . '</p>' );
		}

		if ( !method_exists( 'Interwiki', 'getAllPrefixes' ) ) {
			# version 2.0 is not backwards compatible (but still display nice error)
			$this->error( 'interwiki_error' );
			return;
		}
		$iwPrefixes = Interwiki::getAllPrefixes( null );

		if ( !is_array( $iwPrefixes ) || count( $iwPrefixes ) === 0 ) {
			# If the interwiki table is empty, display an error message
			$this->error( 'interwiki_error' );
			return;
		}

		# Output the existing Interwiki prefixes table header
		$out = '';
		$out .=	Html::openElement(
			'table',
			array( 'class' => 'mw-interwikitable wikitable sortable body' )
		) . "\n";
		$out .= Html::openElement( 'tr', array( 'id' => 'interwikitable-header' ) ) .
			Html::element( 'th', null, $this->msg( 'interwiki_prefix' )->text() ) .
			Html::element( 'th', null, $this->msg( 'interwiki_url' )->text() ) .
			Html::element( 'th', null, $this->msg( 'interwiki_local' )->text() ) .
			Html::element( 'th', null, $this->msg( 'interwiki_trans' )->text() ) .
			( $canModify ?
				Html::element(
					'th',
					array( 'class' => 'unsortable' ),
					$this->msg( 'interwiki_edit' )->text()
				) :
				''
			);
		$out .= Html::closeElement( 'tr' ) . "\n";

		$selfTitle = $this->getPageTitle();

		# Output the existing Interwiki prefixes table rows
		foreach ( $iwPrefixes as $iwPrefix ) {
			$out .= Html::openElement( 'tr', array( 'class' => 'mw-interwikitable-row' ) );
			$out .= Html::element( 'td', array( 'class' => 'mw-interwikitable-prefix' ),
				$iwPrefix['iw_prefix'] );
			$out .= Html::element(
				'td',
				array( 'class' => 'mw-interwikitable-url' ),
				$iwPrefix['iw_url']
			);
			$attribs = array( 'class' => 'mw-interwikitable-local' );
			// Green background for cells with "yes".
			if( $iwPrefix['iw_local'] ) {
				$attribs['style'] = 'background: lime;';
			}
			// The messages interwiki_0 and interwiki_1 are used here.
			$contents = isset( $iwPrefix['iw_local'] ) ?
				$this->msg( 'interwiki_' . $iwPrefix['iw_local'] )->text() :
				'-';
			$out .= Html::element( 'td', $attribs, $contents );
			$attribs = array( 'class' => 'mw-interwikitable-trans' );
			// Green background for cells with "yes".
			if( $iwPrefix['iw_trans'] ) {
				$attribs['style'] = 'background: lime;';
			}
			// The messages interwiki_0 and interwiki_1 are used here.
			$contents = isset( $iwPrefix['iw_trans'] ) ?
				$this->msg( 'interwiki_' . $iwPrefix['iw_trans'] )->text() :
				'-';
			$out .= Html::element( 'td', $attribs, $contents );

			// Additional column when the interwiki table can be modified.
			if ( $canModify ) {
				$out .= Html::rawElement( 'td', array( 'class' => 'mw-interwikitable-modify' ),
					Linker::linkKnown( $selfTitle, $this->msg( 'edit' )->escaped(), array(),
						array( 'action' => 'edit', 'prefix' => $iwPrefix['iw_prefix'] ) ) .
					$this->msg( 'comma-separator' ) .
					Linker::linkKnown( $selfTitle, $this->msg( 'delete' )->escaped(), array(),
						array( 'action' => 'delete', 'prefix' => $iwPrefix['iw_prefix'] ) )
				);
			}
			$out .= Html::closeElement( 'tr' ) . "\n";
		}
		$out .= Html::closeElement( 'table' );

		$this->getOutput()->addHTML( $out );
	}

	/**
	 * Adds a row to the documentation table on the top of Special:Interwiki.
	 * @param $align string
	 * @param $title string
	 * @param $text string
	 * @return string
	 */
	private function addInfoRow( $align = 'start', $title, $text ) {
		return Html::rawElement( 'tr', null,
			// The classes mw-align-start and mw-align-end are used here.
			Html::rawElement(
				'th',
				array( 'class' => 'mw-align-' . $align ),
				$this->msg( $title )->escaped()
			) .
			// This message is expected to have wiki syntax
			Html::rawElement( 'td', null, $this->msg( $text )->parse() )
		);
	}

	function error() {
		$args = func_get_args();
		$this->getOutput()->wrapWikiMsg( "<p class='error'>$1</p>", $args );
	}
}

/**
 * Needed to pass the URL as a raw parameter, because it contains $1
 */
class InterwikiLogFormatter extends LogFormatter {
	/**
	 * @return array
	 */
	protected function getMessageParameters() {
		$params = parent::getMessageParameters();
		if ( isset( $params[4] ) ) {
			$params[4] = Message::rawParam( htmlspecialchars( $params[4] ) );
		}
		return $params;
	}
}