function protectEmails(&$str, $area = '')
{
if (!is_string($str) || $str == '') {
return;
}
// No action needed if no @ is found
if (strpos($str, '@') === false) {
return;
}
if ($this->params->protect_in_js && strpos($str, '</script>') !== false) {
if (preg_match_all($this->params->regex_js, $str, $matches, PREG_SET_ORDER) > 0) {
foreach ($matches as $match) {
$script = $match[0];
while (preg_match($this->params->regex_injs, $script, $regs, PREG_OFFSET_CAPTURE)) {
$protected = str_replace(array('.', '@'), array($regs[1][0] . ' + ' . 'String.fromCharCode(46)' . ' + ' . $regs[1][0], $regs[1][0] . ' + ' . 'String.fromCharCode(64)' . ' + ' . $regs[1][0]), $regs[0][0]);
$script = substr_replace($script, $protected, $regs[0][1], strlen($regs[0][0]));
}
$str = str_replace($match[0], $script, $str);
}
}
}
$this->protect($str);
// Do not protect if {emailprotector=off} is found in text
if (strpos($str, '{emailprotector=off}') !== false || strpos($str, '<!-- EPOFF -->') !== false) {
$str = str_replace(array('<p>{emailprotector=off}</p>', '{emailprotector=off}'), '<!-- EPOFF -->', $str);
NNProtect::unprotect($str);
return;
}
// Fix derivatives of link code <a href="http://mce_host/ourdirectory/email@domain.com">email@domain.com</a>
// This happens when inserting an email in TinyMCE, cancelling its suggestion to add the mailto: prefix...
if (strpos($str, 'mce_host') !== false) {
$str = preg_replace('#"http://mce_host([\\x20-\\x7f][^<>]+/)#i', '"mailto:', $str);
}
// Search for derivatives of link code <a href="mailto:email@domain.com">anytext</a>
while (preg_match($this->params->regex_link, $str, $regs, PREG_OFFSET_CAPTURE)) {
$mail = str_replace('&', '&', $regs[2][0]);
$protected = $this->protectEmail($mail, $regs[5][0], $regs[1][0], $regs[4][0]);
$str = substr_replace($str, $protected, $regs[0][1], strlen($regs[0][0]));
}
NNProtect::protectHtmlTags($str);
$pre = '';
$post = '';
$len = strlen($str);
// Split the string for very long strings
if ($len > 2000) {
$first = strpos($str, '@');
if ($first === false) {
NNProtect::unprotect($str);
return;
}
$last = strrpos($str, '@');
$first = max($first - 100, 0);
$last = min($last + 100, $len);
$pre = substr($str, 0, $first);
$post = substr($str, $last);
$str = substr($str, $first, $last - $first);
}
// Search for plain text email@domain.com
while (preg_match($this->params->regex, $str, $regs, PREG_OFFSET_CAPTURE)) {
$protected = $this->protectEmail('', $regs[1][0]);
$str = substr_replace($str, $protected, $regs[1][1], strlen($regs[1][0]));
}
$str = $pre . $str . $post;
NNProtect::unprotect($str);
}
