/**
* Test a URL as a broken link.
*
* @param URLPATH URL to test.
* @param string Comcode tag type, to which the URL is associated.
* @param string URL actually provided.
* @param MEMBER The member who is responsible for this Comcode
* @return tempcode Error message, or blank if no error.
*/
function test_url($url_full, $tag_type, $given_url, $source_member)
{
if (get_option('check_broken_urls') == '0') {
return new ocp_tempcode();
}
if (strpos($url_full, '{$') !== false) {
return new ocp_tempcode();
}
$temp_tpl = new ocp_tempcode();
if (!handle_has_checked_recently($url_full)) {
$GLOBALS['COMCODE_PARSE_URLS_CHECKED']++;
$test = $GLOBALS['COMCODE_PARSE_URLS_CHECKED'] >= MAX_URLS_TO_READ ? '' : http_download_file($url_full, 0, false);
if (is_null($test) && in_array($GLOBALS['HTTP_MESSAGE'], array('404', 'could not connect to host'))) {
$temp_tpl = do_template('WARNING_TABLE', array('FOR_GUESTS' => false, 'WARNING' => do_lang_tempcode('MISSING_URL_COMCODE', $tag_type, escape_html($url_full))));
if (array_key_exists('COMCODE_BROKEN_URLS', $GLOBALS)) {
$GLOBALS['COMCODE_BROKEN_URLS'][] = array($url_full, NULL);
} elseif (!in_array(get_page_name(), $GLOBALS['DONT_CARE_MISSING_PAGES']) && !running_script('iframe') && !running_script('comcode_convert') && !running_script('preview')) {
$found_in_post = false;
// We don't want to send email if someone's just posting it right now, because they'll see the error on their screen, and we don't want staff spammed by member mistakes
foreach ($_POST as $val) {
if (is_array($_POST)) {
continue;
}
if (get_magic_quotes_gpc()) {
$val = stripslashes($val);
}
if (is_string($val) && strpos($val, $given_url) !== false) {
$found_in_post = true;
}
}
if (!$found_in_post) {
require_code('failure');
relay_error_notification(do_lang('MISSING_URL_COMCODE', $tag_type, $url_full), false, $GLOBALS['FORUM_DRIVER']->is_staff($source_member) ? 'error_occurred_missing_reference_important' : 'error_occurred_missing_reference');
}
}
}
}
return $temp_tpl;
}
/**
* Render that the page wasn't found. Show alternate likely candidates based on misspellings.
*
* @param ID_TEXT The codename of the page to load
* @param ID_TEXT The zone the page is being loaded in
* @return tempcode Message
*/
function page_not_found($codename, $zone)
{
$GLOBALS['HTTP_STATUS_CODE'] = '404';
if (!headers_sent()) {
if (!browser_matches('ie') && strpos(ocp_srv('SERVER_SOFTWARE'), 'IIS') === false) {
header('HTTP/1.0 404 Not Found');
}
}
// Maybe problem with SEO URLs
if (get_zone_name() == '' && get_option('htm_short_urls') == '1' && has_zone_access(get_member(), 'adminzone')) {
$self_url = get_self_url_easy();
$zones = find_all_zones();
foreach ($zones as $_zone) {
if ($_zone != '' && $_zone != 'site' && strpos($self_url, '/' . $_zone . '/') !== false) {
attach_message(do_lang_tempcode('HTACCESS_SEO_PROBLEM'), 'warn');
}
}
}
// "Did you mean?" support
$all_pages_in_zone = array_keys(find_all_pages_wrap($zone));
$did_mean = array();
foreach ($all_pages_in_zone as $possibility) {
if (is_integer($possibility)) {
$possibility = strval($possibility);
}
// e.g. '404' page has been converted to integer by PHP, grr
$from = str_replace('cms_', '', str_replace('admin_', '', $possibility));
$to = str_replace('cms_', '', str_replace('admin_', '', $codename));
//$dist=levenshtein($from,$to); If we use this, change > to < also
//$threshold=4;
$dist = 0.0;
similar_text($from, $to, $dist);
$threshold = 75.0;
if ($dist > $threshold && has_page_access(get_member(), $codename, $zone)) {
$did_mean[$dist] = $possibility;
}
}
ksort($did_mean);
$_did_mean = array_pop($did_mean);
if ($_did_mean == '') {
$_did_mean = NULL;
}
if (ocp_srv('HTTP_REFERER') != '' && !handle_has_checked_recently('request-' . $zone . ':' . $codename)) {
require_code('failure');
relay_error_notification(do_lang('_MISSING_RESOURCE', $zone . ':' . $codename) . ' ' . do_lang('REFERRER', ocp_srv('HTTP_REFERER'), substr(get_browser_string(), 0, 255)), false, 'error_occurred_missing_page');
}
$title = get_page_title('ERROR_OCCURRED');
$add_access = has_actual_page_access(get_member(), 'cms_comcode_pages', NULL, NULL, 'submit_highrange_content');
$redirect_access = addon_installed('redirects_editor') && has_actual_page_access(get_member(), 'admin_redirects');
require_lang('zones');
$add_url = $add_access ? build_url(array('page' => 'cms_comcode_pages', 'type' => '_ed', 'page_link' => $zone . ':' . $codename), get_module_zone('cms_comcode_pages')) : new ocp_tempcode();
$add_redirect_url = $redirect_access ? build_url(array('page' => 'admin_redirects', 'type' => 'misc', 'page_link' => $zone . ':' . $codename), get_module_zone('admin_redirects')) : new ocp_tempcode();
return do_template('MISSING_SCREEN', array('_GUID' => '22f371577cd2ba437e7b0cb241931575', 'TITLE' => $title, 'DID_MEAN' => $_did_mean, 'ADD_URL' => $add_url, 'ADD_REDIRECT_URL' => $add_redirect_url, 'PAGE' => $codename));
}