summaryrefslogtreecommitdiff
path: root/includes/parser/ParserOptions.php
blob: 07752768dc745193e650d133b2ad16cefc61ce08 (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
<?php
/**
 * Options for the PHP parser
 *
 * @file
 * @ingroup Parser
 */

/**
 * Set options of the Parser
 * @todo document
 * @ingroup Parser
 */
class ParserOptions {
	# All variables are supposed to be private in theory, although in practise this is not the case.
	var $mUseDynamicDates;           # Use DateFormatter to format dates
	var $mInterwikiMagic;            # Interlanguage links are removed and returned in an array
	var $mAllowExternalImages;       # Allow external images inline
	var $mAllowExternalImagesFrom;   # If not, any exception?
	var $mEnableImageWhitelist;      # If not or it doesn't match, should we check an on-wiki whitelist?
	var $mDateFormat = null;         # Date format index
	var $mEditSection = true;        # Create "edit section" links
	var $mAllowSpecialInclusion;     # Allow inclusion of special pages
	var $mTidy = false;              # Ask for tidy cleanup
	var $mInterfaceMessage = false;  # Which lang to call for PLURAL and GRAMMAR
	var $mTargetLanguage = null;     # Overrides above setting with arbitrary language
	var $mMaxIncludeSize;            # Maximum size of template expansions, in bytes
	var $mMaxPPNodeCount;            # Maximum number of nodes touched by PPFrame::expand()
	var $mMaxPPExpandDepth;          # Maximum recursion depth in PPFrame::expand()
	var $mMaxTemplateDepth;          # Maximum recursion depth for templates within templates
	var $mRemoveComments = true;     # Remove HTML comments. ONLY APPLIES TO PREPROCESS OPERATIONS
	var $mTemplateCallback =         # Callback for template fetching
		array( 'Parser', 'statelessFetchTemplate' );
	var $mEnableLimitReport = false; # Enable limit report in an HTML comment on output
	var $mTimestamp;                 # Timestamp used for {{CURRENTDAY}} etc.
	var $mExternalLinkTarget;        # Target attribute for external links
	var $mCleanSignatures;           #
	var $mPreSaveTransform = true;   # Transform wiki markup when saving the page.

	var $mNumberHeadings;            # Automatically number headings
	var $mMath;                      # User math preference (as integer)
	var $mThumbSize;                 # Thumb size preferred by the user.
	private $mStubThreshold;         # Maximum article size of an article to be marked as "stub"
	var $mUserLang;                  # Language code of the User language.

	/**
	 * @var User
	 */
	var $mUser;                      # Stored user object
	var $mIsPreview = false;         # Parsing the page for a "preview" operation
	var $mIsSectionPreview = false;  # Parsing the page for a "preview" operation on a single section
	var $mIsPrintable = false;       # Parsing the printable version of the page

	var $mExtraKey = '';             # Extra key that should be present in the caching key.

	protected $onAccessCallback = null;

	function getUseDynamicDates()               { return $this->mUseDynamicDates; }
	function getInterwikiMagic()                { return $this->mInterwikiMagic; }
	function getAllowExternalImages()           { return $this->mAllowExternalImages; }
	function getAllowExternalImagesFrom()       { return $this->mAllowExternalImagesFrom; }
	function getEnableImageWhitelist()          { return $this->mEnableImageWhitelist; }
	function getEditSection()                   { return $this->mEditSection; }
	function getNumberHeadings()                { $this->optionUsed( 'numberheadings' );
												  return $this->mNumberHeadings; }
	function getAllowSpecialInclusion()         { return $this->mAllowSpecialInclusion; }
	function getTidy()                          { return $this->mTidy; }
	function getInterfaceMessage()              { return $this->mInterfaceMessage; }
	function getTargetLanguage()                { return $this->mTargetLanguage; }
	function getMaxIncludeSize()                { return $this->mMaxIncludeSize; }
	function getMaxPPNodeCount()                { return $this->mMaxPPNodeCount; }
	function getMaxPPExpandDepth()              { return $this->mMaxPPExpandDepth; }
	function getMaxTemplateDepth()              { return $this->mMaxTemplateDepth; }
	function getRemoveComments()                { return $this->mRemoveComments; }
	function getTemplateCallback()              { return $this->mTemplateCallback; }
	function getEnableLimitReport()             { return $this->mEnableLimitReport; }
	function getCleanSignatures()               { return $this->mCleanSignatures; }
	function getExternalLinkTarget()            { return $this->mExternalLinkTarget; }
	function getMath()                          { $this->optionUsed( 'math' );
												  return $this->mMath; }
	function getThumbSize()                     { $this->optionUsed( 'thumbsize' );
												  return $this->mThumbSize; }
	function getStubThreshold()                 { $this->optionUsed( 'stubthreshold' );
												  return $this->mStubThreshold; }

	function getIsPreview()                     { return $this->mIsPreview; }
	function getIsSectionPreview()              { return $this->mIsSectionPreview; }
	function getIsPrintable()                   { $this->optionUsed( 'printable' );
												  return $this->mIsPrintable; }
	function getUser()                          { return $this->mUser; }
	function getPreSaveTransform()              { return $this->mPreSaveTransform; }

	/**
	 * @param $title Title
	 * @return Skin
	 * @deprecated since 1.18 Use Linker::* instead
	 */
	function getSkin( $title = null ) {
		wfDeprecated( __METHOD__ );
		return new DummyLinker;
	}

	function getDateFormat() {
		$this->optionUsed( 'dateformat' );
		if ( !isset( $this->mDateFormat ) ) {
			$this->mDateFormat = $this->mUser->getDatePreference();
		}
		return $this->mDateFormat;
	}

	function getTimestamp() {
		if ( !isset( $this->mTimestamp ) ) {
			$this->mTimestamp = wfTimestampNow();
		}
		return $this->mTimestamp;
	}

	/**
	 * You shouldn't use this. Really. $parser->getFunctionLang() is all you need.
	 * Using this fragments the cache and is discouraged. Yes, {{int: }} uses this,
	 * producing inconsistent tables (Bug 14404).
	 * @return String   Language code
	 * @since 1.17
	 */
	function getUserLang() {
		$this->optionUsed( 'userlang' );
		return $this->mUserLang;
	}

	function setUseDynamicDates( $x )           { return wfSetVar( $this->mUseDynamicDates, $x ); }
	function setInterwikiMagic( $x )            { return wfSetVar( $this->mInterwikiMagic, $x ); }
	function setAllowExternalImages( $x )       { return wfSetVar( $this->mAllowExternalImages, $x ); }
	function setAllowExternalImagesFrom( $x )   { return wfSetVar( $this->mAllowExternalImagesFrom, $x ); }
	function setEnableImageWhitelist( $x )      { return wfSetVar( $this->mEnableImageWhitelist, $x ); }
	function setDateFormat( $x )                { return wfSetVar( $this->mDateFormat, $x ); }
	function setEditSection( $x )               { return wfSetVar( $this->mEditSection, $x ); }
	function setNumberHeadings( $x )            { return wfSetVar( $this->mNumberHeadings, $x ); }
	function setAllowSpecialInclusion( $x )     { return wfSetVar( $this->mAllowSpecialInclusion, $x ); }
	function setTidy( $x )                      { return wfSetVar( $this->mTidy, $x ); }
	function setSkin( $x )                      { $this->mSkin = $x; }
	function setInterfaceMessage( $x )          { return wfSetVar( $this->mInterfaceMessage, $x ); }
	function setTargetLanguage( $x )            { return wfSetVar( $this->mTargetLanguage, $x, true ); }
	function setMaxIncludeSize( $x )            { return wfSetVar( $this->mMaxIncludeSize, $x ); }
	function setMaxPPNodeCount( $x )            { return wfSetVar( $this->mMaxPPNodeCount, $x ); }
	function setMaxTemplateDepth( $x )          { return wfSetVar( $this->mMaxTemplateDepth, $x ); }
	function setRemoveComments( $x )            { return wfSetVar( $this->mRemoveComments, $x ); }
	function setTemplateCallback( $x )          { return wfSetVar( $this->mTemplateCallback, $x ); }
	function enableLimitReport( $x = true )     { return wfSetVar( $this->mEnableLimitReport, $x ); }
	function setTimestamp( $x )                 { return wfSetVar( $this->mTimestamp, $x ); }
	function setCleanSignatures( $x )           { return wfSetVar( $this->mCleanSignatures, $x ); }
	function setExternalLinkTarget( $x )        { return wfSetVar( $this->mExternalLinkTarget, $x ); }
	function setMath( $x )                      { return wfSetVar( $this->mMath, $x ); }
	function setUserLang( $x )                  {
		if ( $x instanceof Language ) {
			$x = $x->getCode();
		}
		return wfSetVar( $this->mUserLang, $x );
	}
	function setThumbSize( $x )                 { return wfSetVar( $this->mThumbSize, $x ); }
	function setStubThreshold( $x )             { return wfSetVar( $this->mStubThreshold, $x ); }
	function setPreSaveTransform( $x )          { return wfSetVar( $this->mPreSaveTransform, $x ); }

	function setIsPreview( $x )                 { return wfSetVar( $this->mIsPreview, $x ); }
	function setIsSectionPreview( $x )          { return wfSetVar( $this->mIsSectionPreview, $x ); }
	function setIsPrintable( $x )               { return wfSetVar( $this->mIsPrintable, $x ); }

	/**
	 * Extra key that should be present in the parser cache key.
	 */
	function addExtraKey( $key ) {
		$this->mExtraKey .= '!' . $key;
	}

	function __construct( $user = null ) {
		$this->initialiseFromUser( $user );
	}

	/**
	 * Get parser options
	 *
	 * @param $user User object
	 * @return ParserOptions object
	 */
	static function newFromUser( $user ) {
		return new ParserOptions( $user );
	}

	/** Get user options */
	function initialiseFromUser( $userInput ) {
		global $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
		global $wgAllowExternalImagesFrom, $wgEnableImageWhitelist, $wgAllowSpecialInclusion, $wgMaxArticleSize;
		global $wgMaxPPNodeCount, $wgMaxTemplateDepth, $wgMaxPPExpandDepth, $wgCleanSignatures;
		global $wgExternalLinkTarget, $wgLang;

		wfProfileIn( __METHOD__ );

		if ( !$userInput ) {
			global $wgUser;
			if ( isset( $wgUser ) ) {
				$user = $wgUser;
			} else {
				$user = new User;
			}
		} else {
			$user =& $userInput;
		}

		$this->mUser = $user;

		$this->mUseDynamicDates = $wgUseDynamicDates;
		$this->mInterwikiMagic = $wgInterwikiMagic;
		$this->mAllowExternalImages = $wgAllowExternalImages;
		$this->mAllowExternalImagesFrom = $wgAllowExternalImagesFrom;
		$this->mEnableImageWhitelist = $wgEnableImageWhitelist;
		$this->mAllowSpecialInclusion = $wgAllowSpecialInclusion;
		$this->mMaxIncludeSize = $wgMaxArticleSize * 1024;
		$this->mMaxPPNodeCount = $wgMaxPPNodeCount;
		$this->mMaxPPExpandDepth = $wgMaxPPExpandDepth;
		$this->mMaxTemplateDepth = $wgMaxTemplateDepth;
		$this->mCleanSignatures = $wgCleanSignatures;
		$this->mExternalLinkTarget = $wgExternalLinkTarget;

		$this->mNumberHeadings = $user->getOption( 'numberheadings' );
		$this->mMath = $user->getOption( 'math' );
		$this->mThumbSize = $user->getOption( 'thumbsize' );
		$this->mStubThreshold = $user->getStubThreshold();
		$this->mUserLang = $wgLang->getCode();

		wfProfileOut( __METHOD__ );
	}

	/**
	 * Registers a callback for tracking which ParserOptions which are used.
	 * This is a private API with the parser.
	 */
	function registerWatcher( $callback ) {
		$this->onAccessCallback = $callback;
	}

	/**
	 * Called when an option is accessed.
	 */
	protected function optionUsed( $optionName ) {
		if ( $this->onAccessCallback ) {
			call_user_func( $this->onAccessCallback, $optionName );
		}
	}

	/**
	 * Returns the full array of options that would have been used by
	 * in 1.16.
	 * Used to get the old parser cache entries when available.
	 */
	public static function legacyOptions() {
		global $wgUseDynamicDates;
		$legacyOpts = array( 'math', 'stubthreshold', 'numberheadings', 'userlang', 'thumbsize', 'editsection', 'printable' );
		if ( $wgUseDynamicDates ) {
			$legacyOpts[] = 'dateformat';
		}
		return $legacyOpts;
	}

	/**
	 * Generate a hash string with the values set on these ParserOptions
	 * for the keys given in the array.
	 * This will be used as part of the hash key for the parser cache,
	 * so users sharign the options with vary for the same page share
	 * the same cached data safely.
	 *
	 * Replaces User::getPageRenderingHash()
	 *
	 * Extensions which require it should install 'PageRenderingHash' hook,
	 * which will give them a chance to modify this key based on their own
	 * settings.
	 *
	 * @since 1.17
	 * @return \string Page rendering hash
	 */
	public function optionsHash( $forOptions ) {
		global $wgContLang, $wgRenderHashAppend;

		$confstr = '';

		if ( in_array( 'math', $forOptions ) ) {
			$confstr .= $this->mMath;
		} else {
			$confstr .= '*';
		}


		// Space assigned for the stubthreshold but unused
		// since it disables the parser cache, its value will always
		// be 0 when this function is called by parsercache.
		if ( in_array( 'stubthreshold', $forOptions ) ) {
			$confstr .= '!' . $this->mStubThreshold;
		} else {
			$confstr .= '!*' ;
		}

		if ( in_array( 'dateformat', $forOptions ) ) {
			$confstr .= '!' . $this->getDateFormat();
		}

		if ( in_array( 'numberheadings', $forOptions ) ) {
			$confstr .= '!' . ( $this->mNumberHeadings ? '1' : '' );
		} else {
			$confstr .= '!*';
		}

		if ( in_array( 'userlang', $forOptions ) ) {
			$confstr .= '!' . $this->mUserLang;
		} else {
			$confstr .= '!*';
		}

		if ( in_array( 'thumbsize', $forOptions ) ) {
			$confstr .= '!' . $this->mThumbSize;
		} else {
			$confstr .= '!*';
		}

		// add in language specific options, if any
		// @todo FIXME: This is just a way of retrieving the url/user preferred variant
		$confstr .= $wgContLang->getExtraHashOptions();

		$confstr .= $wgRenderHashAppend;

		if ( !in_array( 'editsection', $forOptions ) ) {
			$confstr .= '!*';
		} elseif ( !$this->mEditSection ) {
			$confstr .= '!edit=0';
		}

		if ( $this->mIsPrintable && in_array( 'printable', $forOptions ) ) {
			$confstr .= '!printable=1';
		}

		if ( $this->mExtraKey != '' )
			$confstr .= $this->mExtraKey;

		// Give a chance for extensions to modify the hash, if they have
		// extra options or other effects on the parser cache.
		wfRunHooks( 'PageRenderingHash', array( &$confstr ) );

		// Make it a valid memcached key fragment
		$confstr = str_replace( ' ', '_', $confstr );

		return $confstr;
	}
}