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-rw-r--r--vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php6
1 files changed, 5 insertions, 1 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php
index e54a3344a..1beeaa5d2 100644
--- a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php
@@ -97,7 +97,11 @@ class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
// PHP 5.3 and later support this functionality natively
if (function_exists('idn_to_ascii')) {
- $string = idn_to_ascii($string, IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
+ if (defined('IDNA_NONTRANSITIONAL_TO_ASCII') && defined('INTL_IDNA_VARIANT_UTS46')) {
+ $string = idn_to_ascii($string, IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
+ } else {
+ $string = idn_to_ascii($string);
+ }
// If we have Net_IDNA2 support, we can support IRIs by
// punycoding them. (This is the most portable thing to do,