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update new IdnaConvert class with needed fixes in them

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Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
This commit is contained in:
Michael Kaufmann (d00p)
2016-06-19 20:15:33 +02:00
parent 5789e9a8a4
commit b22e70804b
2 changed files with 34 additions and 25 deletions
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35
lib/classes/idna/ext/Punycode.php
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@@ -77,11 +77,32 @@ class Punycode implements PunycodeInterface
$this->UnicodeTranscoder = $UnicodeTranscoder;
}
/**
* Returns the used prefix for punycode-encoded strings
* @return string
*/
public function getPunycodePrefix()
{
return self::punycodePrefix;
}
/**
* Checks, whether or not the provided string is a valid punycode string
* @param string $encoded
* @return boolean
*/
public function validate($encoded) {
// Check for existence of the prefix
if (strpos($encoded, self::punycodePrefix) !== 0) {
return false;
}
// If nothing is left after the prefix, it is hopeless
if (strlen(trim($encoded)) <= strlen(self::punycodePrefix)) {
return false;
}
return true;
}
/**
* The actual decoding algorithm
* @param string
@@ -89,19 +110,11 @@ class Punycode implements PunycodeInterface
*/
public function decode($encoded)
{
$decoded = [];
// find the Punycode prefix
if (!preg_match('!^' . preg_quote(self::punycodePrefix, '!') . '!', $encoded)) {
// *** froxlor patch ***
return $encoded;
// *** end froxlor patch ***
throw new \InvalidArgumentException('This is not a punycode string');
}
$encode_test = preg_replace('!^' . preg_quote(self::punycodePrefix, '!') . '!', '', $encoded);
// If nothing left after removing the prefix, it is hopeless
if (!$encode_test) {
if (!$this->validate($encoded)) {
return false;
}
$decoded = [];
// Find last occurence of the delimiter
$delim_pos = strrpos($encoded, '-');
if ($delim_pos > self::byteLength(self::punycodePrefix)) {