XOOPS 2.5.6  Final
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CSS.php
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1 <?php
2 
15 {
16 
17  public function validate($css, $config, $context) {
18 
19  $css = $this->parseCDATA($css);
20 
21  $definition = $config->getCSSDefinition();
22 
23  // we're going to break the spec and explode by semicolons.
24  // This is because semicolon rarely appears in escaped form
25  // Doing this is generally flaky but fast
26  // IT MIGHT APPEAR IN URIs, see HTMLPurifier_AttrDef_CSSURI
27  // for details
28 
29  $declarations = explode(';', $css);
30  $propvalues = array();
31 
35  $property = false;
36  $context->register('CurrentCSSProperty', $property);
37 
38  foreach ($declarations as $declaration) {
39  if (!$declaration) continue;
40  if (!strpos($declaration, ':')) continue;
41  list($property, $value) = explode(':', $declaration, 2);
42  $property = trim($property);
43  $value = trim($value);
44  $ok = false;
45  do {
46  if (isset($definition->info[$property])) {
47  $ok = true;
48  break;
49  }
50  if (ctype_lower($property)) break;
51  $property = strtolower($property);
52  if (isset($definition->info[$property])) {
53  $ok = true;
54  break;
55  }
56  } while(0);
57  if (!$ok) continue;
58  // inefficient call, since the validator will do this again
59  if (strtolower(trim($value)) !== 'inherit') {
60  // inherit works for everything (but only on the base property)
61  $result = $definition->info[$property]->validate(
62  $value, $config, $context );
63  } else {
64  $result = 'inherit';
65  }
66  if ($result === false) continue;
67  $propvalues[$property] = $result;
68  }
69 
70  $context->destroy('CurrentCSSProperty');
71 
72  // procedure does not write the new CSS simultaneously, so it's
73  // slightly inefficient, but it's the only way of getting rid of
74  // duplicates. Perhaps config to optimize it, but not now.
75 
76  $new_declarations = '';
77  foreach ($propvalues as $prop => $value) {
78  $new_declarations .= "$prop:$value;";
79  }
80 
81  return $new_declarations ? $new_declarations : false;
82 
83  }
84 
85 }
86 
87 // vim: et sw=4 sts=4