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Don't assume that idn_to_ascii does validation.

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Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
This commit is contained in:
Edward Z. Yang 2016-10-27 01:36:08 -07:00
parent dc8702160c
commit 3ba9133b21
1 changed files with 5 additions and 4 deletions
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9
library/HTMLPurifier/AttrDef/URI/Host.php
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@ -97,7 +97,7 @@ class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
// PHP 5.3 and later support this functionality natively
if (function_exists('idn_to_ascii')) {
return idn_to_ascii($string);
$string = idn_to_ascii($string);
// If we have Net_IDNA2 support, we can support IRIs by
// punycoding them. (This is the most portable thing to do,
@ -123,13 +123,14 @@ class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
}
}
$string = implode('.', $new_parts);
if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) {
return $string;
}
} catch (Exception $e) {
// XXX error reporting
}
}
// Try again
if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) {
return $string;
}
return false;
}
}