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-rw-r--r--library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php60
1 files changed, 60 insertions, 0 deletions
diff --git a/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php b/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php
new file mode 100644
index 000000000..b21313470
--- /dev/null
+++ b/library/HTMLPurifier/Injector/RemoveSpansWithoutAttributes.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * Injector that removes spans with no attributes
+ */
+class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector
+{
+ public $name = 'RemoveSpansWithoutAttributes';
+ public $needed = array('span');
+
+ private $attrValidator;
+
+ /**
+ * Used by AttrValidator
+ */
+ private $config;
+ private $context;
+
+ public function prepare($config, $context) {
+ $this->attrValidator = new HTMLPurifier_AttrValidator();
+ $this->config = $config;
+ $this->context = $context;
+ return parent::prepare($config, $context);
+ }
+
+ public function handleElement(&$token) {
+ if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) {
+ return;
+ }
+
+ // We need to validate the attributes now since this doesn't normally
+ // happen until after MakeWellFormed. If all the attributes are removed
+ // the span needs to be removed too.
+ $this->attrValidator->validateToken($token, $this->config, $this->context);
+ $token->armor['ValidateAttributes'] = true;
+
+ if (!empty($token->attr)) {
+ return;
+ }
+
+ $nesting = 0;
+ $spanContentTokens = array();
+ while ($this->forwardUntilEndToken($i, $current, $nesting)) {}
+
+ if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
+ // Mark closing span tag for deletion
+ $current->markForDeletion = true;
+ // Delete open span tag
+ $token = false;
+ }
+ }
+
+ public function handleEnd(&$token) {
+ if ($token->markForDeletion) {
+ $token = false;
+ }
+ }
+}
+
+// vim: et sw=4 sts=4