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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:39:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:39:39 +0000
commit8ca6cc32b2c789a3149861159ad258f2cb9491e3 (patch)
tree2492de6f1528dd44eaa169a5c1555026d9cb75ec /library/vendor/HTMLPurifier/AttrDef/HTML/ID.php
parentInitial commit. (diff)
downloadicingaweb2-upstream.tar.xz
icingaweb2-upstream.zip
Adding upstream version 2.11.4.upstream/2.11.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/vendor/HTMLPurifier/AttrDef/HTML/ID.php')
-rw-r--r--library/vendor/HTMLPurifier/AttrDef/HTML/ID.php113
1 files changed, 113 insertions, 0 deletions
diff --git a/library/vendor/HTMLPurifier/AttrDef/HTML/ID.php b/library/vendor/HTMLPurifier/AttrDef/HTML/ID.php
new file mode 100644
index 0000000..4ba4561
--- /dev/null
+++ b/library/vendor/HTMLPurifier/AttrDef/HTML/ID.php
@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * Validates the HTML attribute ID.
+ * @warning Even though this is the id processor, it
+ * will ignore the directive Attr:IDBlacklist, since it will only
+ * go according to the ID accumulator. Since the accumulator is
+ * automatically generated, it will have already absorbed the
+ * blacklist. If you're hacking around, make sure you use load()!
+ */
+
+class HTMLPurifier_AttrDef_HTML_ID extends HTMLPurifier_AttrDef
+{
+
+ // selector is NOT a valid thing to use for IDREFs, because IDREFs
+ // *must* target IDs that exist, whereas selector #ids do not.
+
+ /**
+ * Determines whether or not we're validating an ID in a CSS
+ * selector context.
+ * @type bool
+ */
+ protected $selector;
+
+ /**
+ * @param bool $selector
+ */
+ public function __construct($selector = false)
+ {
+ $this->selector = $selector;
+ }
+
+ /**
+ * @param string $id
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return bool|string
+ */
+ public function validate($id, $config, $context)
+ {
+ if (!$this->selector && !$config->get('Attr.EnableID')) {
+ return false;
+ }
+
+ $id = trim($id); // trim it first
+
+ if ($id === '') {
+ return false;
+ }
+
+ $prefix = $config->get('Attr.IDPrefix');
+ if ($prefix !== '') {
+ $prefix .= $config->get('Attr.IDPrefixLocal');
+ // prevent re-appending the prefix
+ if (strpos($id, $prefix) !== 0) {
+ $id = $prefix . $id;
+ }
+ } elseif ($config->get('Attr.IDPrefixLocal') !== '') {
+ trigger_error(
+ '%Attr.IDPrefixLocal cannot be used unless ' .
+ '%Attr.IDPrefix is set',
+ E_USER_WARNING
+ );
+ }
+
+ if (!$this->selector) {
+ $id_accumulator =& $context->get('IDAccumulator');
+ if (isset($id_accumulator->ids[$id])) {
+ return false;
+ }
+ }
+
+ // we purposely avoid using regex, hopefully this is faster
+
+ if ($config->get('Attr.ID.HTML5') === true) {
+ if (preg_match('/[\t\n\x0b\x0c ]/', $id)) {
+ return false;
+ }
+ } else {
+ if (ctype_alpha($id)) {
+ // OK
+ } else {
+ if (!ctype_alpha(@$id[0])) {
+ return false;
+ }
+ // primitive style of regexps, I suppose
+ $trim = trim(
+ $id,
+ 'A..Za..z0..9:-._'
+ );
+ if ($trim !== '') {
+ return false;
+ }
+ }
+ }
+
+ $regexp = $config->get('Attr.IDBlacklistRegexp');
+ if ($regexp && preg_match($regexp, $id)) {
+ return false;
+ }
+
+ if (!$this->selector) {
+ $id_accumulator->add($id);
+ }
+
+ // if no change was made to the ID, return the result
+ // else, return the new id if stripping whitespace made it
+ // valid, or return false.
+ return $id;
+ }
+}
+
+// vim: et sw=4 sts=4