/**
* Return the IDNA backend.
*
* @return mixed IDNA backend (false if none available).
*/
protected static function _getBackend()
{
if (!isset(self::$_backend)) {
if (extension_loaded('intl')) {
/* Only available in PHP > 5.4.0 */
self::$_backend = defined('INTL_IDNA_VARIANT_UTS46') ? 'INTL_UTS46' : 'INTL';
} else {
self::$_backend = new Horde_Idna_Punycode();
}
}
return self::$_backend;
}
/**
* @throws Horde_Idna_Exception
*/
public function __get($name)
{
switch ($name) {
case 'bare_address':
return is_null($this->host) ? $this->mailbox : $this->mailbox . '@' . $this->host;
case 'bare_address_idn':
$personal = $this->_personal;
$this->_personal = null;
$res = $this->encoded;
$this->_personal = $personal;
return $res;
case 'eai':
return is_null($this->mailbox) ? false : Horde_Mime::is8bit($this->mailbox);
case 'encoded':
return $this->writeAddress(true);
case 'host':
return $this->_host;
case 'host_idn':
return Horde_Idna::encode($this->_host);
case 'label':
return is_null($this->personal) ? $this->bare_address : $this->_personal;
case 'personal':
return strcasecmp($this->_personal, $this->bare_address) === 0 ? null : $this->_personal;
case 'personal_encoded':
return Horde_Mime::encode($this->personal);
case 'valid':
return (bool) strlen($this->mailbox);
}
}
/**
*/
public function callback($match)
{
$href = $orig_href = $match[0];
if (strpos($match[2], ':') === false) {
$href = 'http://' . $href;
}
if ($this->_params['callback']) {
$href = call_user_func($this->_params['callback'], $href);
}
$href = htmlspecialchars($href);
$class = $this->_params['class'];
if (!empty($class)) {
$class = ' class="' . $class . '"';
}
$target = $this->_params['target'];
if (!empty($target)) {
$target = ' target="' . $target . '"';
}
$decoded = $orig_href;
try {
if (strlen($host = $this->_parseurl($orig_href, PHP_URL_HOST))) {
$decoded = substr_replace($orig_href, Horde_Idna::decode($host), strpos($orig_href, $host), strlen($host));
}
} catch (Horde_Idna_Exception $e) {
} catch (InvalidArgumentException $e) {
}
$replacement = '<a href="' . $href . '"' . ($this->_params['nofollow'] ? ' rel="nofollow"' : '') . $target . $class . '>' . htmlspecialchars($decoded) . '</a>';
if (!empty($this->_params['noprefetch'])) {
$replacement = '<meta http-equiv="x-dns-prefetch-control" value="off" />' . $replacement . '<meta http-equiv="x-dns-prefetch-control" value="on" />';
}
if ($this->_params['encode']) {
$replacement = chr(0) . chr(0) . chr(0) . base64_encode($replacement) . chr(0) . chr(0) . chr(0);
}
return $replacement;
}
/**
* @dataProvider domainNamesProvider
*/
public function testDecode($decoded, $encoded)
{
$idna = new Horde_Idna();
$this->assertEquals($decoded, $idna->decode($encoded));
}