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Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php')
-rw-r--r--vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php111
1 files changed, 111 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php
new file mode 100644
index 0000000..7f1ea3b
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Background.php
@@ -0,0 +1,111 @@
+<?php
+
+/**
+ * Validates shorthand CSS property background.
+ * @warning Does not support url tokens that have internal spaces.
+ */
+class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
+{
+
+ /**
+ * Local copy of component validators.
+ * @type HTMLPurifier_AttrDef[]
+ * @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
+ */
+ protected $info;
+
+ /**
+ * @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 string $string
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($string, $config, $context)
+ {
+ // regular pre-processing
+ $string = $this->parseCDATA($string);
+ if ($string === '') {
+ return false;
+ }
+
+ // munge rgb() decl if necessary
+ $string = $this->mungeRgb($string);
+
+ // assumes URI doesn't have spaces in it
+ $bits = explode(' ', $string); // bits to process
+
+ $caught = array();
+ $caught['color'] = false;
+ $caught['image'] = false;
+ $caught['repeat'] = false;
+ $caught['attachment'] = false;
+ $caught['position'] = false;
+
+ $i = 0; // number of catches
+
+ foreach ($bits as $bit) {
+ if ($bit === '') {
+ continue;
+ }
+ foreach ($caught as $key => $status) {
+ if ($key != 'position') {
+ if ($status !== false) {
+ continue;
+ }
+ $r = $this->info['background-' . $key]->validate($bit, $config, $context);
+ } else {
+ $r = $bit;
+ }
+ if ($r === false) {
+ continue;
+ }
+ if ($key == 'position') {
+ if ($caught[$key] === false) {
+ $caught[$key] = '';
+ }
+ $caught[$key] .= $r . ' ';
+ } else {
+ $caught[$key] = $r;
+ }
+ $i++;
+ break;
+ }
+ }
+
+ if (!$i) {
+ return false;
+ }
+ if ($caught['position'] !== false) {
+ $caught['position'] = $this->info['background-position']->
+ validate($caught['position'], $config, $context);
+ }
+
+ $ret = array();
+ foreach ($caught as $value) {
+ if ($value === false) {
+ continue;
+ }
+ $ret[] = $value;
+ }
+
+ if (empty($ret)) {
+ return false;
+ }
+ return implode(' ', $ret);
+ }
+}
+
+// vim: et sw=4 sts=4