Retrieves object reference to the CSS definition
| public getCSSDefinition ( boolean $raw = false, boolean $optimized = false ) : HTMLPurifier_CSSDefinition | ||
| $raw | boolean | Return a copy that has not been setup yet. Must be called before it's been setup, otherwise won't work. |
| $optimized | boolean | If true, this method may return null, to indicate that a cached version of the modified definition object is available and no further edits are necessary. Consider using maybeGetRawCSSDefinition, which is more explicitly named, instead. |
| return | HTMLPurifier_CSSDefinition | |
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['list-style-type'] = $def->info['list-style-type'];
$this->info['list-style-position'] = $def->info['list-style-position'];
$this->info['list-style-image'] = $def->info['list-style-image'];
}
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['border-width'] = $def->info['border-width'];
$this->info['border-style'] = $def->info['border-style'];
$this->info['border-top-color'] = $def->info['border-top-color'];
}
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['background-color'] = $def->info['background-color'];
$this->info['background-image'] = $def->info['background-image'];
$this->info['background-repeat'] = $def->info['background-repeat'];
$this->info['background-attachment'] = $def->info['background-attachment'];
$this->info['background-position'] = $def->info['background-position'];
}
/**
* @param HTMLPurifier_Config $config
*/
public function __construct($config)
{
$def = $config->getCSSDefinition();
$this->info['font-style'] = $def->info['font-style'];
$this->info['font-variant'] = $def->info['font-variant'];
$this->info['font-weight'] = $def->info['font-weight'];
$this->info['font-size'] = $def->info['font-size'];
$this->info['line-height'] = $def->info['line-height'];
$this->info['font-family'] = $def->info['font-family'];
}
/**
* @param HTMLPurifier_Config $config
* @return string
*/
public function render($config)
{
$this->def = $config->getCSSDefinition();
$ret = '';
$ret .= $this->start('div', array('class' => 'HTMLPurifier_Printer'));
$ret .= $this->start('table');
$ret .= $this->element('caption', 'Properties ($info)');
$ret .= $this->start('thead');
$ret .= $this->start('tr');
$ret .= $this->element('th', 'Property', array('class' => 'heavy'));
$ret .= $this->element('th', 'Definition', array('class' => 'heavy', 'style' => 'width:auto;'));
$ret .= $this->end('tr');
$ret .= $this->end('thead');
ksort($this->def->info);
foreach ($this->def->info as $property => $obj) {
$name = $this->getClass($obj, 'AttrDef_');
$ret .= $this->row($property, $name);
}
$ret .= $this->end('table');
$ret .= $this->end('div');
return $ret;
}
/**
* @param string $css
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($css, $config, $context)
{
$css = $this->parseCDATA($css);
$definition = $config->getCSSDefinition();
// we're going to break the spec and explode by semicolons.
// This is because semicolon rarely appears in escaped form
// Doing this is generally flaky but fast
// IT MIGHT APPEAR IN URIs, see HTMLPurifier_AttrDef_CSSURI
// for details
$declarations = explode(';', $css);
$propvalues = array();
/**
* Name of the current CSS property being validated.
*/
$property = false;
$context->register('CurrentCSSProperty', $property);
foreach ($declarations as $declaration) {
if (!$declaration) {
continue;
}
if (!strpos($declaration, ':')) {
continue;
}
list($property, $value) = explode(':', $declaration, 2);
$property = trim($property);
$value = trim($value);
$ok = false;
do {
if (isset($definition->info[$property])) {
$ok = true;
break;
}
if (ctype_lower($property)) {
break;
}
$property = strtolower($property);
if (isset($definition->info[$property])) {
$ok = true;
break;
}
} while (0);
if (!$ok) {
continue;
}
// inefficient call, since the validator will do this again
if (strtolower(trim($value)) !== 'inherit') {
// inherit works for everything (but only on the base property)
$result = $definition->info[$property]->validate($value, $config, $context);
} else {
$result = 'inherit';
}
if ($result === false) {
continue;
}
$propvalues[$property] = $result;
}
$context->destroy('CurrentCSSProperty');
// procedure does not write the new CSS simultaneously, so it's
// slightly inefficient, but it's the only way of getting rid of
// duplicates. Perhaps config to optimize it, but not now.
$new_declarations = '';
foreach ($propvalues as $prop => $value) {
$new_declarations .= "{$prop}:{$value};";
}
return $new_declarations ? $new_declarations : false;
}
/**
* @param string $css
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($css, $config, $context)
{
$css = $this->parseCDATA($css);
$definition = $config->getCSSDefinition();
$allow_duplicates = $config->get("CSS.AllowDuplicates");
// According to the CSS2.1 spec, the places where a
// non-delimiting semicolon can appear are in strings
// escape sequences. So here is some dumb hack to
// handle quotes.
$len = strlen($css);
$accum = "";
$declarations = array();
$quoted = false;
for ($i = 0; $i < $len; $i++) {
$c = strcspn($css, ";'\"", $i);
$accum .= substr($css, $i, $c);
$i += $c;
if ($i == $len) {
break;
}
$d = $css[$i];
if ($quoted) {
$accum .= $d;
if ($d == $quoted) {
$quoted = false;
}
} else {
if ($d == ";") {
$declarations[] = $accum;
$accum = "";
} else {
$accum .= $d;
$quoted = $d;
}
}
}
if ($accum != "") {
$declarations[] = $accum;
}
$propvalues = array();
$new_declarations = '';
/**
* Name of the current CSS property being validated.
*/
$property = false;
$context->register('CurrentCSSProperty', $property);
foreach ($declarations as $declaration) {
if (!$declaration) {
continue;
}
if (!strpos($declaration, ':')) {
continue;
}
list($property, $value) = explode(':', $declaration, 2);
$property = trim($property);
$value = trim($value);
$ok = false;
do {
if (isset($definition->info[$property])) {
$ok = true;
break;
}
if (ctype_lower($property)) {
break;
}
$property = strtolower($property);
if (isset($definition->info[$property])) {
$ok = true;
break;
}
} while (0);
if (!$ok) {
continue;
}
// inefficient call, since the validator will do this again
if (strtolower(trim($value)) !== 'inherit') {
// inherit works for everything (but only on the base property)
$result = $definition->info[$property]->validate($value, $config, $context);
} else {
$result = 'inherit';
}
if ($result === false) {
continue;
}
if ($allow_duplicates) {
$new_declarations .= "{$property}:{$result};";
} else {
$propvalues[$property] = $result;
}
}
$context->destroy('CurrentCSSProperty');
// procedure does not write the new CSS simultaneously, so it's
// slightly inefficient, but it's the only way of getting rid of
// duplicates. Perhaps config to optimize it, but not now.
foreach ($propvalues as $prop => $value) {
$new_declarations .= "{$prop}:{$value};";
}
return $new_declarations ? $new_declarations : false;
}
/**
* CSS定義を追加
*
* @param HTMLPurifier_Config $config HTMLPurifier_Config instance
* @return void
*/
private function __addCssDef(HTMLPurifier_Config $config)
{
if ($def = $config->getCSSDefinition()) {
$def->info['position'] = new HTMLPurifier_AttrDef_Enum(array('absolute', 'fixed', 'relative', 'static'));
$def->info['top'] = $def->info['bottom'] = $def->info['left'] = $def->info['right'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_CSS_Length(), new HTMLPurifier_AttrDef_CSS_Percentage(), new HTMLPurifier_AttrDef_Enum(array('auto'))));
$def->info['z-index'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_CSS_Number(), new HTMLPurifier_AttrDef_Enum(array('auto'))));
$def->info['direction'] = new HTMLPurifier_AttrDef_Enum(array('ltr', 'rtl'));
$def->info['unicode-bidi'] = new HTMLPurifier_AttrDef_Enum(array('normal', 'embed', 'bidi-override'));
$def->info['width'] = $def->info['height'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_CSS_Length(), new HTMLPurifier_AttrDef_CSS_Percentage(), new HTMLPurifier_AttrDef_Enum(array('auto'))));
$def->info['min-width'] = $def->info['min-height'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_CSS_Length(), new HTMLPurifier_AttrDef_CSS_Percentage()));
$def->info['max-width'] = $def->info['max-height'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_CSS_Length(), new HTMLPurifier_AttrDef_CSS_Percentage(), new HTMLPurifier_AttrDef_Enum(array('none'))));
$def->info['text-justify'] = new HTMLPurifier_AttrDef_Enum(array('auto', 'distribute', 'distribute-all-lines', 'inter-cluster', 'inter-ideograph', 'inter-word', 'kashida', 'newspaper'));
$def->info['text-underline-position'] = new HTMLPurifier_AttrDef_Enum(array('above', 'below'));
$def->info['empty-cells'] = new HTMLPurifier_AttrDef_Enum(array('show', 'hide'));
$def->info['cursor'] = new HTMLPurifier_AttrDef_CSS_Composite(array(new HTMLPurifier_AttrDef_Enum(array('auto', 'default', 'pointer', 'crosshair', 'move', 'text', 'wait', 'help', 'n-resize', 's-resize', 'w-resize', 'e-resize', 'ne-resize', 'nw-resize', 'se-resize', 'sw-resize', 'progress', 'hand', 'no-drop', 'all-scroll', 'col-resize', 'row-resize', 'not-allowed', 'vertical-text')), new HTMLPurifier_AttrDef_CSS_URI()));
}
}