aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php')
-rw-r--r--vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php47
1 files changed, 47 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php
new file mode 100644
index 000000000..235ebb34b
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php
@@ -0,0 +1,47 @@
+<?php
+
+// must be called POST validation
+
+/**
+ * Transform that supplies default values for the src and alt attributes
+ * in img tags, as well as prevents the img tag from being removed
+ * because of a missing alt tag. This needs to be registered as both
+ * a pre and post attribute transform.
+ */
+class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
+{
+
+ /**
+ * @param array $attr
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return array
+ */
+ public function transform($attr, $config, $context)
+ {
+ $src = true;
+ if (!isset($attr['src'])) {
+ if ($config->get('Core.RemoveInvalidImg')) {
+ return $attr;
+ }
+ $attr['src'] = $config->get('Attr.DefaultInvalidImage');
+ $src = false;
+ }
+
+ if (!isset($attr['alt'])) {
+ if ($src) {
+ $alt = $config->get('Attr.DefaultImageAlt');
+ if ($alt === null) {
+ $attr['alt'] = basename($attr['src']);
+ } else {
+ $attr['alt'] = $alt;
+ }
+ } else {
+ $attr['alt'] = $config->get('Attr.DefaultInvalidImageAlt');
+ }
+ }
+ return $attr;
+ }
+}
+
+// vim: et sw=4 sts=4