ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
CSSDefinition.php
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1<?php
2
8{
9
10 public $type = 'CSS';
11
16 public $info = array();
17
22 protected function doSetup($config)
23 {
24 $this->info['text-align'] = new HTMLPurifier_AttrDef_Enum(
25 array('left', 'right', 'center', 'justify'),
26 false
27 );
28
30 $this->info['border-bottom-style'] =
31 $this->info['border-right-style'] =
32 $this->info['border-left-style'] =
33 $this->info['border-top-style'] = new HTMLPurifier_AttrDef_Enum(
34 array(
35 'none',
36 'hidden',
37 'dotted',
38 'dashed',
39 'solid',
40 'double',
41 'groove',
42 'ridge',
43 'inset',
44 'outset'
45 ),
46 false
47 );
48
49 $this->info['border-style'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_style);
50
51 $this->info['clear'] = new HTMLPurifier_AttrDef_Enum(
52 array('none', 'left', 'right', 'both'),
53 false
54 );
55 $this->info['float'] = new HTMLPurifier_AttrDef_Enum(
56 array('none', 'left', 'right'),
57 false
58 );
59 $this->info['font-style'] = new HTMLPurifier_AttrDef_Enum(
60 array('normal', 'italic', 'oblique'),
61 false
62 );
63 $this->info['font-variant'] = new HTMLPurifier_AttrDef_Enum(
64 array('normal', 'small-caps'),
65 false
66 );
67
68 $uri_or_none = new HTMLPurifier_AttrDef_CSS_Composite(
69 array(
70 new HTMLPurifier_AttrDef_Enum(array('none')),
72 )
73 );
74
75 $this->info['list-style-position'] = new HTMLPurifier_AttrDef_Enum(
76 array('inside', 'outside'),
77 false
78 );
79 $this->info['list-style-type'] = new HTMLPurifier_AttrDef_Enum(
80 array(
81 'disc',
82 'circle',
83 'square',
84 'decimal',
85 'lower-roman',
86 'upper-roman',
87 'lower-alpha',
88 'upper-alpha',
89 'none'
90 ),
91 false
92 );
93 $this->info['list-style-image'] = $uri_or_none;
94
95 $this->info['list-style'] = new HTMLPurifier_AttrDef_CSS_ListStyle($config);
96
97 $this->info['text-transform'] = new HTMLPurifier_AttrDef_Enum(
98 array('capitalize', 'uppercase', 'lowercase', 'none'),
99 false
100 );
101 $this->info['color'] = new HTMLPurifier_AttrDef_CSS_Color();
102
103 $this->info['background-image'] = $uri_or_none;
104 $this->info['background-repeat'] = new HTMLPurifier_AttrDef_Enum(
105 array('repeat', 'repeat-x', 'repeat-y', 'no-repeat')
106 );
107 $this->info['background-attachment'] = new HTMLPurifier_AttrDef_Enum(
108 array('scroll', 'fixed')
109 );
110 $this->info['background-position'] = new HTMLPurifier_AttrDef_CSS_BackgroundPosition();
111
112 $border_color =
113 $this->info['border-top-color'] =
114 $this->info['border-bottom-color'] =
115 $this->info['border-left-color'] =
116 $this->info['border-right-color'] =
117 $this->info['background-color'] = new HTMLPurifier_AttrDef_CSS_Composite(
118 array(
119 new HTMLPurifier_AttrDef_Enum(array('transparent')),
121 )
122 );
123
124 $this->info['background'] = new HTMLPurifier_AttrDef_CSS_Background($config);
125
126 $this->info['border-color'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_color);
127
128 $border_width =
129 $this->info['border-top-width'] =
130 $this->info['border-bottom-width'] =
131 $this->info['border-left-width'] =
132 $this->info['border-right-width'] = new HTMLPurifier_AttrDef_CSS_Composite(
133 array(
134 new HTMLPurifier_AttrDef_Enum(array('thin', 'medium', 'thick')),
135 new HTMLPurifier_AttrDef_CSS_Length('0') //disallow negative
136 )
137 );
138
139 $this->info['border-width'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_width);
140
141 $this->info['letter-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(
142 array(
143 new HTMLPurifier_AttrDef_Enum(array('normal')),
145 )
146 );
147
148 $this->info['word-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(
149 array(
150 new HTMLPurifier_AttrDef_Enum(array('normal')),
152 )
153 );
154
155 $this->info['font-size'] = new HTMLPurifier_AttrDef_CSS_Composite(
156 array(
158 array(
159 'xx-small',
160 'x-small',
161 'small',
162 'medium',
163 'large',
164 'x-large',
165 'xx-large',
166 'larger',
167 'smaller'
168 )
169 ),
172 )
173 );
174
175 $this->info['line-height'] = new HTMLPurifier_AttrDef_CSS_Composite(
176 array(
177 new HTMLPurifier_AttrDef_Enum(array('normal')),
178 new HTMLPurifier_AttrDef_CSS_Number(true), // no negatives
181 )
182 );
183
184 $margin =
185 $this->info['margin-top'] =
186 $this->info['margin-bottom'] =
187 $this->info['margin-left'] =
188 $this->info['margin-right'] = new HTMLPurifier_AttrDef_CSS_Composite(
189 array(
192 new HTMLPurifier_AttrDef_Enum(array('auto'))
193 )
194 );
195
196 $this->info['margin'] = new HTMLPurifier_AttrDef_CSS_Multiple($margin);
197
198 // non-negative
199 $padding =
200 $this->info['padding-top'] =
201 $this->info['padding-bottom'] =
202 $this->info['padding-left'] =
203 $this->info['padding-right'] = new HTMLPurifier_AttrDef_CSS_Composite(
204 array(
207 )
208 );
209
210 $this->info['padding'] = new HTMLPurifier_AttrDef_CSS_Multiple($padding);
211
212 $this->info['text-indent'] = new HTMLPurifier_AttrDef_CSS_Composite(
213 array(
216 )
217 );
218
219 $trusted_wh = new HTMLPurifier_AttrDef_CSS_Composite(
220 array(
223 new HTMLPurifier_AttrDef_Enum(array('auto'))
224 )
225 );
226 $max = $config->get('CSS.MaxImgLength');
227
228 $this->info['width'] =
229 $this->info['height'] =
230 $max === null ?
231 $trusted_wh :
233 'img',
234 // For img tags:
236 array(
237 new HTMLPurifier_AttrDef_CSS_Length('0', $max),
238 new HTMLPurifier_AttrDef_Enum(array('auto'))
239 )
240 ),
241 // For everyone else:
242 $trusted_wh
243 );
244
245 $this->info['text-decoration'] = new HTMLPurifier_AttrDef_CSS_TextDecoration();
246
247 $this->info['font-family'] = new HTMLPurifier_AttrDef_CSS_FontFamily();
248
249 // this could use specialized code
250 $this->info['font-weight'] = new HTMLPurifier_AttrDef_Enum(
251 array(
252 'normal',
253 'bold',
254 'bolder',
255 'lighter',
256 '100',
257 '200',
258 '300',
259 '400',
260 '500',
261 '600',
262 '700',
263 '800',
264 '900'
265 ),
266 false
267 );
268
269 // MUST be called after other font properties, as it references
270 // a CSSDefinition object
271 $this->info['font'] = new HTMLPurifier_AttrDef_CSS_Font($config);
272
273 // same here
274 $this->info['border'] =
275 $this->info['border-bottom'] =
276 $this->info['border-top'] =
277 $this->info['border-left'] =
278 $this->info['border-right'] = new HTMLPurifier_AttrDef_CSS_Border($config);
279
280 $this->info['border-collapse'] = new HTMLPurifier_AttrDef_Enum(
281 array('collapse', 'separate')
282 );
283
284 $this->info['caption-side'] = new HTMLPurifier_AttrDef_Enum(
285 array('top', 'bottom')
286 );
287
288 $this->info['table-layout'] = new HTMLPurifier_AttrDef_Enum(
289 array('auto', 'fixed')
290 );
291
292 $this->info['vertical-align'] = new HTMLPurifier_AttrDef_CSS_Composite(
293 array(
295 array(
296 'baseline',
297 'sub',
298 'super',
299 'top',
300 'text-top',
301 'middle',
302 'bottom',
303 'text-bottom'
304 )
305 ),
308 )
309 );
310
311 $this->info['border-spacing'] = new HTMLPurifier_AttrDef_CSS_Multiple(new HTMLPurifier_AttrDef_CSS_Length(), 2);
312
313 // These CSS properties don't work on many browsers, but we live
314 // in THE FUTURE!
315 $this->info['white-space'] = new HTMLPurifier_AttrDef_Enum(
316 array('nowrap', 'normal', 'pre', 'pre-wrap', 'pre-line')
317 );
318
319 if ($config->get('CSS.Proprietary')) {
320 $this->doSetupProprietary($config);
321 }
322
323 if ($config->get('CSS.AllowTricky')) {
324 $this->doSetupTricky($config);
325 }
326
327 if ($config->get('CSS.Trusted')) {
328 $this->doSetupTrusted($config);
329 }
330
331 $allow_important = $config->get('CSS.AllowImportant');
332 // wrap all attr-defs with decorator that handles !important
333 foreach ($this->info as $k => $v) {
334 $this->info[$k] = new HTMLPurifier_AttrDef_CSS_ImportantDecorator($v, $allow_important);
335 }
336
337 $this->setupConfigStuff($config);
338 }
339
343 protected function doSetupProprietary($config)
344 {
345 // Internet Explorer only scrollbar colors
346 $this->info['scrollbar-arrow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
347 $this->info['scrollbar-base-color'] = new HTMLPurifier_AttrDef_CSS_Color();
348 $this->info['scrollbar-darkshadow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
349 $this->info['scrollbar-face-color'] = new HTMLPurifier_AttrDef_CSS_Color();
350 $this->info['scrollbar-highlight-color'] = new HTMLPurifier_AttrDef_CSS_Color();
351 $this->info['scrollbar-shadow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
352
353 // vendor specific prefixes of opacity
354 $this->info['-moz-opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
355 $this->info['-khtml-opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
356
357 // only opacity, for now
358 $this->info['filter'] = new HTMLPurifier_AttrDef_CSS_Filter();
359
360 // more CSS3
361 $this->info['page-break-after'] =
362 $this->info['page-break-before'] = new HTMLPurifier_AttrDef_Enum(
363 array(
364 'auto',
365 'always',
366 'avoid',
367 'left',
368 'right'
369 )
370 );
371 $this->info['page-break-inside'] = new HTMLPurifier_AttrDef_Enum(array('auto', 'avoid'));
372
373 }
374
378 protected function doSetupTricky($config)
379 {
380 $this->info['display'] = new HTMLPurifier_AttrDef_Enum(
381 array(
382 'inline',
383 'block',
384 'list-item',
385 'run-in',
386 'compact',
387 'marker',
388 'table',
389 'inline-block',
390 'inline-table',
391 'table-row-group',
392 'table-header-group',
393 'table-footer-group',
394 'table-row',
395 'table-column-group',
396 'table-column',
397 'table-cell',
398 'table-caption',
399 'none'
400 )
401 );
402 $this->info['visibility'] = new HTMLPurifier_AttrDef_Enum(
403 array('visible', 'hidden', 'collapse')
404 );
405 $this->info['overflow'] = new HTMLPurifier_AttrDef_Enum(array('visible', 'hidden', 'auto', 'scroll'));
406 $this->info['opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
407 }
408
412 protected function doSetupTrusted($config)
413 {
414 $this->info['position'] = new HTMLPurifier_AttrDef_Enum(
415 array('static', 'relative', 'absolute', 'fixed')
416 );
417 $this->info['top'] =
418 $this->info['left'] =
419 $this->info['right'] =
420 $this->info['bottom'] = new HTMLPurifier_AttrDef_CSS_Composite(
421 array(
424 new HTMLPurifier_AttrDef_Enum(array('auto')),
425 )
426 );
427 $this->info['z-index'] = new HTMLPurifier_AttrDef_CSS_Composite(
428 array(
430 new HTMLPurifier_AttrDef_Enum(array('auto')),
431 )
432 );
433 }
434
442 protected function setupConfigStuff($config)
443 {
444 // setup allowed elements
445 $support = "(for information on implementing this, see the " .
446 "support forums) ";
447 $allowed_properties = $config->get('CSS.AllowedProperties');
448 if ($allowed_properties !== null) {
449 foreach ($this->info as $name => $d) {
450 if (!isset($allowed_properties[$name])) {
451 unset($this->info[$name]);
452 }
453 unset($allowed_properties[$name]);
454 }
455 // emit errors
456 foreach ($allowed_properties as $name => $d) {
457 // :TODO: Is this htmlspecialchars() call really necessary?
458 $name = htmlspecialchars($name);
459 trigger_error("Style attribute '$name' is not supported $support", E_USER_WARNING);
460 }
461 }
462
463 $forbidden_properties = $config->get('CSS.ForbiddenProperties');
464 if ($forbidden_properties !== null) {
465 foreach ($this->info as $name => $d) {
466 if (isset($forbidden_properties[$name])) {
467 unset($this->info[$name]);
468 }
469 }
470 }
471 }
472}
473
474// vim: et sw=4 sts=4
Validates the value of background-position.
Validates shorthand CSS property background.
Definition: Background.php:8
Validates the border property as defined by CSS.
Definition: Border.php:7
Validates Color as defined by CSS.
Definition: Color.php:7
Allows multiple validators to attempt to validate attribute.
Definition: Composite.php:13
Microsoft's proprietary filter: CSS property.
Definition: Filter.php:9
Validates a font family list according to CSS spec.
Definition: FontFamily.php:7
Validates shorthand CSS property font.
Definition: Font.php:7
Decorator which enables !important to be used in CSS values.
Represents a Length as defined by CSS.
Definition: Length.php:7
Validates shorthand CSS property list-style.
Definition: ListStyle.php:8
Framework class for strings that involve multiple values.
Definition: Multiple.php:15
Validates a number as defined by the CSS spec.
Definition: Number.php:7
Validates a Percentage as defined by the CSS spec.
Definition: Percentage.php:7
Validates the value for the CSS property text-decoration.
Validates a URI in CSS syntax, which uses url('http://example.com')
Definition: URI.php:13
Validates a keyword against a list of valid values.
Definition: Enum.php:11
Validates an integer.
Definition: Integer.php:11
Decorator that, depending on a token, switches between two definitions.
Definition: Switch.php:7
Defines allowed CSS attributes and what their values are.
doSetup($config)
Constructs the info array.
setupConfigStuff($config)
Performs extra config-based processing.
$info
Assoc array of attribute name to definition object.
Super-class for definition datatype objects, implements serialization functions for the class.
Definition: Definition.php:8
$border_style
Definition: example_022.php:83