Beispiel #1
0
function kses_split2($string, $allowed_html, $allowed_protocols)
{
    $string = kses_stripslashes($string);
    if (substr($string, 0, 1) != '<') {
        return '&gt;';
    }
    # It matched a ">" character
    if (!preg_match('%^<\\s*(/\\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) {
        return '';
    }
    # It's seriously malformed
    $slash = trim($matches[1]);
    $elem = $matches[2];
    $attrlist = $matches[3];
    if (!@isset($allowed_html[strtolower($elem)])) {
        $string = str_replace(array('<', '>'), array('&lt;', '&gt;'), $string);
        return $string;
        # They are using a not allowed HTML element
    }
    if ($slash != '') {
        return "<{$slash}{$elem}>";
    }
    # No attributes are allowed for closing elements
    return kses_attr("{$slash}{$elem}", $attrlist, $allowed_html, $allowed_protocols);
}
Beispiel #2
0
function kses_split2($string, $allowed_html, $allowed_protocols)
{
    $string = kses_stripslashes($string);
    if (substr($string, 0, 1) != '<') {
        return '&gt;';
    }
    # It matched a ">" character
    if (!preg_match('%^<\\s*(/\\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) {
        return '';
    }
    # It's seriously malformed
    $slash = trim($matches[1]);
    $elem = $matches[2];
    $attrlist = $matches[3];
    if (!is_array($allowed_html[strtolower($elem)])) {
        return '';
    }
    # They are using a not allowed HTML element
    return kses_attr("{$slash}{$elem}", $attrlist, $allowed_html, $allowed_protocols);
}
Beispiel #3
0
function kses_split2($matches)
{
    //Zenphoto:preg_replace with the "e" modifier is deprecated, this is the callback
    global $_allowed_html, $_allowed_protocols;
    $allowed_html = $_allowed_html;
    $allowed_protocols = $_allowed_protocols;
    $string = kses_stripslashes($matches[1]);
    if (substr($string, 0, 1) != '<') {
        return '>';
        # It matched a ">" character
    }
    if (!preg_match('%^<\\s*(/\\s*)?([a-zA-Z0-9]+)([^>]*)>$%', $string, $matches)) {
        return $string;
        # It's seriously malformed
    }
    $slash = trim($matches[1]);
    $elem = $matches[2];
    $attrlist = $matches[3];
    if (!@isset($allowed_html[strtolower($elem)])) {
        return '';
    }
    # They are using a not allowed HTML element
    if ($slash != '') {
        return "<{$slash}{$elem}>";
    }
    # No attributes are allowed for closing elements
    return kses_attr("{$slash}{$elem}", $attrlist, $allowed_html, $allowed_protocols);
}
Beispiel #4
0
/**
 * Callback for kses_split for fixing malformed HTML tags.
 *
 * This function does a lot of work. It rejects some very malformed things like
 * <:::>. It returns an empty string, if the element isn't allowed (look ma, no
 * strip_tags()!). Otherwise it splits the tag into an element and an attribute
 * list.
 *
 * After the tag is split into an element and an attribute list, it is run
 * through another filter which will remove illegal attributes and once that is
 * completed, will be returned.
 *
 * @access private
 * @uses kses_attr()
 *
 * @param string $string Content to filter
 * @param array $allowed_html Allowed HTML elements
 * @param array $allowed_protocols Allowed protocols to keep
 * @return string Fixed HTML element
 */
function kses_split2($string, $allowed_html, $allowed_protocols)
{
    $string = kses_stripslashes($string);
    if (substr($string, 0, 1) != '<') {
        return '&gt;';
    }
    // It matched a ">" character
    if (preg_match('%^<!--(.*?)(-->)?$%', $string, $matches)) {
        $string = str_replace(array('<!--', '-->'), '', $matches[1]);
        while ($string != ($newstring = kses($string, $allowed_html, $allowed_protocols))) {
            $string = $newstring;
        }
        if ($string == '') {
            return '';
        }
        // prevent multiple dashes in comments
        $string = preg_replace('/--+/', '-', $string);
        // prevent three dashes closing a comment
        $string = preg_replace('/-$/', '', $string);
        return "<!--{$string}-->";
    }
    // Allow HTML comments
    if (!preg_match('%^<\\s*(/\\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) {
        return '';
    }
    // It's seriously malformed
    $slash = trim($matches[1]);
    $elem = $matches[2];
    $attrlist = $matches[3];
    if (!@isset($allowed_html[strtolower($elem)])) {
        return '';
    }
    // They are using a not allowed HTML element
    if ($slash != '') {
        return "<{$slash}{$elem}>";
    }
    // No attributes are allowed for closing elements
    return kses_attr("{$slash}{$elem}", $attrlist, $allowed_html, $allowed_protocols);
}
Beispiel #5
0
function kses_split2($matches)
{
    ###############################################################################
    # This function does a lot of work. It rejects some very malformed things
    # like <:::>. It returns an empty string, if the element isn't allowed (look
    # ma, no strip_tags()!). Otherwise it splits the tag into an element and an
    # attribute list.
    ###############################################################################
    //update// preg_replace with the "e" modifier is deprecated, this is the callback
    global $_allowed_html, $_allowed_protocols;
    $allowed_html = $_allowed_html;
    $allowed_protocols = $_allowed_protocols;
    $string = kses_stripslashes($matches[1]);
    if (substr($string, 0, 1) != '<') {
        return '>';
        # It matched a ">" character
    }
    if (!preg_match('%^<\\s*(/\\s*)?([a-zA-Z0-9]+)([^>]*)>$%', $string, $matches)) {
        return $string;
        # It's seriously malformed
    }
    $slash = trim($matches[1]);
    $elem = $matches[2];
    $attrlist = $matches[3];
    if (!@isset($allowed_html[strtolower($elem)])) {
        return '';
    }
    # They are using a not allowed HTML element
    if ($slash != '') {
        return "<{$slash}{$elem}>";
    }
    # No attributes are allowed for closing elements
    return kses_attr("{$slash}{$elem}", $attrlist, $allowed_html, $allowed_protocols);
}