/**
* Filter function Strips a URL of certain defined session or tracking params
*
* @return string
*/
static function makeUrlCanonical($url, $event)
{
$site_id = $event->getSiteId();
if (!$site_id) {
owa_coreAPI::debug('no site_id passed to make makeUrlCanonical. Returning URL as is.');
return $url;
}
// remove port, pass, user, and fragment
$url = owa_lib::unparseUrl(parse_url($url), array('port', 'user', 'pass', 'fragment'));
owa_coreAPI::debug('makeUrlCanonical using site_id: ' . $site_id);
$site = owa_coreAPI::entityFactory('base.site');
$site->load($site->generateId($site_id));
$filter_string = $site->getSiteSetting('query_string_filters');
if ($filter_string) {
$filters = str_replace(' ', '', $filter_string);
$filters = explode(',', $filter_string);
} else {
$filters = array();
}
// merge global filters
$global_filters = owa_coreAPI::getSetting('base', 'query_string_filters');
if ($global_filters) {
$global_filters = str_replace(' ', '', $global_filters);
$global_filters = explode(',', $global_filters);
$filters = array_merge($global_filters, $filters);
}
// OWA specific params to filter
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'source');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'medium');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'campaign');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'ad');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'ad_type');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'overlay');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'state');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . owa_coreAPI::getSetting('base', 'feed_subscription_param'));
//print_r($filters);
// remove jsessionid
$url = preg_replace('`;jsessionid=[^?]*(?=\\?|$)`i', '', $url);
// remove matches to URL parameter filter (supporting regular expressions)
foreach ($filters as $filter => $value) {
$pattern = '`&' . $value . '(=[^&]*)?(?=&|$)|(?<=\\?)' . $value . '(=[^&]*)?(&|$)`i';
$url = preg_replace($pattern, '', $url);
}
// remove dangling '?'
$url = rtrim($url, '?');
//check and remove default page
$default_page = $site->getSiteSetting('default_page');
if ($default_page) {
$default_length = strlen($default_page);
if ($default_length) {
//test for string
$default_test = substr($url, 0 - $default_length, $default_length);
if ($default_test === $default_page) {
$url = substr($url, 0, 0 - $default_length);
}
}
}
// check and remove trailing slash
if (substr($url, -1) === '/') {
$url = substr($url, 0, -1);
}
$rewrite_rules_string = $site->getSiteSetting('rewrite_rules');
if ($rewrite_rules_string) {
$rewrite_rules_string = trim($rewrite_rules_string);
if (!empty($rewrite_rules_string)) {
$rewrite_rule_lines = explode(',', $rewrite_rules_string);
foreach ($rewrite_rule_lines as $rewrite_rule_line) {
$rewrite_rule = explode('->', $rewrite_rule_line, 2);
if (count($rewrite_rule) === 2) {
$url = preg_replace('`' . trim($rewrite_rule[0]) . '`i', trim($rewrite_rule[1]), $url);
}
}
}
}
// check for domain aliases
$das = $site->getSiteSetting('domain_aliases');
if ($das) {
$site_domain = $site->getDomainName();
if (!strpos($url, '://' . $site_domain)) {
$das = explode(',', $das);
foreach ($das as $da) {
owa_coreAPI::debug("Checking URL for domain alias: {$da}");
$da = trim($da);
if (strpos($url, $da)) {
$url = str_replace($da, $site_domain, $url);
break;
}
}
}
}
return $url;
}
/**
* Filter function Strips a URL of certain defined session or tracking params
*
* @return string
*/
static function makeUrlCanonical($url, $site_id = '')
{
if (!$site_id) {
owa_coreAPI::debug('no site_id passed to make makeUrlCanonical. Returning URL as is.');
return $url;
}
// remove port, pass, user, and fragment
$url = owa_lib::unparseUrl(parse_url($url), array('port', 'user', 'pass', 'fragment'));
owa_coreAPI::debug('makeUrlCanonical using site_id: ' . $site_id);
$site = owa_coreAPI::entityFactory('base.site');
$site->load($site->generateId($site_id));
$filter_string = $site->getSiteSetting('query_string_filters');
if ($filter_string) {
$filters = str_replace(' ', '', $filter_string);
$filters = explode(',', $filter_string);
} else {
$filters = array();
}
// merge global filters
$global_filters = owa_coreAPI::getSetting('base', 'query_string_filters');
if ($global_filters) {
$global_filters = str_replace(' ', '', $global_filters);
$global_filters = explode(',', $global_filters);
$filters = array_merge($global_filters, $filters);
}
// OWA specific params to filter
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'source');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'medium');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'campaign');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'ad');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'ad_type');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'overlay');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . 'state');
array_push($filters, owa_coreAPI::getSetting('base', 'ns') . owa_coreAPI::getSetting('base', 'feed_subscription_param'));
//print_r($filters);
foreach ($filters as $filter => $value) {
$url = preg_replace('#\\?' . $value . '=.*$|&' . $value . '=.*$|' . $value . '=.*&#msiU', '', $url);
}
//check for dangling '?'. this might occure if all params are stripped.
// returns last character of string
$test = substr($url, -1);
// if dangling '?' is found clean up the url by removing it.
if ($test == '?') {
$url = substr($url, 0, -1);
}
//check and remove default page
$default_page = $site->getSiteSetting('default_page');
if ($default_page) {
$default_length = strlen($default_page);
if ($default_length) {
//test for string
$default_test = substr($url, 0 - $default_length, $default_length);
if ($default_test === $default_page) {
$url = substr($url, 0, 0 - $default_length);
}
}
}
// check and remove trailing slash
if (substr($url, -1) === '/') {
$url = substr($url, 0, -1);
}
// check for domain aliases
$das = $site->getSiteSetting('domain_aliases');
if ($das) {
$site_domain = $site->getDomainName();
if (!strpos($url, '://' . $site_domain)) {
$das = explode(',', $das);
foreach ($das as $da) {
owa_coreAPI::debug("Checking URL for domain alias: {$da}");
$da = trim($da);
if (strpos($url, $da)) {
$url = str_replace($da, $site_domain, $url);
break;
}
}
}
}
return $url;
}