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-rw-r--r--library/HTMLPurifier/ChildDef/StrictBlockquote.php88
1 files changed, 88 insertions, 0 deletions
diff --git a/library/HTMLPurifier/ChildDef/StrictBlockquote.php b/library/HTMLPurifier/ChildDef/StrictBlockquote.php
new file mode 100644
index 000000000..dfae8a6e5
--- /dev/null
+++ b/library/HTMLPurifier/ChildDef/StrictBlockquote.php
@@ -0,0 +1,88 @@
+<?php
+
+/**
+ * Takes the contents of blockquote when in strict and reformats for validation.
+ */
+class HTMLPurifier_ChildDef_StrictBlockquote extends HTMLPurifier_ChildDef_Required
+{
+ protected $real_elements;
+ protected $fake_elements;
+ public $allow_empty = true;
+ public $type = 'strictblockquote';
+ protected $init = false;
+
+ /**
+ * @note We don't want MakeWellFormed to auto-close inline elements since
+ * they might be allowed.
+ */
+ public function getAllowedElements($config) {
+ $this->init($config);
+ return $this->fake_elements;
+ }
+
+ public function validateChildren($tokens_of_children, $config, $context) {
+
+ $this->init($config);
+
+ // trick the parent class into thinking it allows more
+ $this->elements = $this->fake_elements;
+ $result = parent::validateChildren($tokens_of_children, $config, $context);
+ $this->elements = $this->real_elements;
+
+ if ($result === false) return array();
+ if ($result === true) $result = $tokens_of_children;
+
+ $def = $config->getHTMLDefinition();
+ $block_wrap_start = new HTMLPurifier_Token_Start($def->info_block_wrapper);
+ $block_wrap_end = new HTMLPurifier_Token_End( $def->info_block_wrapper);
+ $is_inline = false;
+ $depth = 0;
+ $ret = array();
+
+ // assuming that there are no comment tokens
+ foreach ($result as $i => $token) {
+ $token = $result[$i];
+ // ifs are nested for readability
+ if (!$is_inline) {
+ if (!$depth) {
+ if (
+ ($token instanceof HTMLPurifier_Token_Text && !$token->is_whitespace) ||
+ (!$token instanceof HTMLPurifier_Token_Text && !isset($this->elements[$token->name]))
+ ) {
+ $is_inline = true;
+ $ret[] = $block_wrap_start;
+ }
+ }
+ } else {
+ if (!$depth) {
+ // starting tokens have been inline text / empty
+ if ($token instanceof HTMLPurifier_Token_Start || $token instanceof HTMLPurifier_Token_Empty) {
+ if (isset($this->elements[$token->name])) {
+ // ended
+ $ret[] = $block_wrap_end;
+ $is_inline = false;
+ }
+ }
+ }
+ }
+ $ret[] = $token;
+ if ($token instanceof HTMLPurifier_Token_Start) $depth++;
+ if ($token instanceof HTMLPurifier_Token_End) $depth--;
+ }
+ if ($is_inline) $ret[] = $block_wrap_end;
+ return $ret;
+ }
+
+ private function init($config) {
+ if (!$this->init) {
+ $def = $config->getHTMLDefinition();
+ // allow all inline elements
+ $this->real_elements = $this->elements;
+ $this->fake_elements = $def->info_content_sets['Flow'];
+ $this->fake_elements['#PCDATA'] = true;
+ $this->init = true;
+ }
+ }
+}
+
+// vim: et sw=4 sts=4