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- <?php
- class CAS_CookieJar
- {
- private $_cookies;
-
- public function __construct (array &$storageArray)
- {
- $this->_cookies =& $storageArray;
- }
-
- public function storeCookies ($request_url, $response_headers)
- {
- $urlParts = parse_url($request_url);
- $defaultDomain = $urlParts['host'];
- $cookies = $this->parseCookieHeaders($response_headers, $defaultDomain);
- foreach ($cookies as $cookie) {
-
-
- if (!$this->cookieMatchesTarget($cookie, $urlParts)) {
- continue;
- }
-
- $this->storeCookie($cookie);
- phpCAS::trace($cookie['name'].' -> '.$cookie['value']);
- }
- }
-
- public function getCookies ($request_url)
- {
- if (!count($this->_cookies)) {
- return array();
- }
-
- $target = parse_url($request_url);
- if ($target === false) {
- return array();
- }
- $this->expireCookies();
- $matching_cookies = array();
- foreach ($this->_cookies as $key => $cookie) {
- if ($this->cookieMatchesTarget($cookie, $target)) {
- $matching_cookies[$cookie['name']] = $cookie['value'];
- }
- }
- return $matching_cookies;
- }
-
- protected function parseCookieHeaders( $header, $defaultDomain )
- {
- phpCAS::traceBegin();
- $cookies = array();
- foreach ( $header as $line ) {
- if ( preg_match('/^Set-Cookie2?: /i', $line)) {
- $cookies[] = $this->parseCookieHeader($line, $defaultDomain);
- }
- }
- phpCAS::traceEnd($cookies);
- return $cookies;
- }
-
- protected function parseCookieHeader ($line, $defaultDomain)
- {
- if (!$defaultDomain) {
- throw new CAS_InvalidArgumentException(
- '$defaultDomain was not provided.'
- );
- }
-
- $cookie = array(
- 'domain' => $defaultDomain,
- 'path' => '/',
- 'secure' => false,
- );
- $line = preg_replace('/^Set-Cookie2?: /i', '', trim($line));
-
- $line = trim($line, ';');
- phpCAS::trace("Cookie Line: $line");
-
-
-
-
-
- $attributeStrings = explode(';', $line);
- foreach ( $attributeStrings as $attributeString ) {
-
- $attributeParts = explode('=', $attributeString, 2);
- $attributeName = trim($attributeParts[0]);
- $attributeNameLC = strtolower($attributeName);
- if (isset($attributeParts[1])) {
- $attributeValue = trim($attributeParts[1]);
-
- if (strpos($attributeValue, '"') === 0) {
- $attributeValue = trim($attributeValue, '"');
-
- $attributeValue = str_replace('\"', '"', $attributeValue);
- }
- } else {
- $attributeValue = null;
- }
- switch ($attributeNameLC) {
- case 'expires':
- $cookie['expires'] = strtotime($attributeValue);
- break;
- case 'max-age':
- $cookie['max-age'] = (int)$attributeValue;
-
- if ($cookie['max-age']) {
- $cookie['expires'] = time() + $cookie['max-age'];
- } else {
-
-
- $cookie['expires'] = time() - 1;
- }
- break;
- case 'secure':
- $cookie['secure'] = true;
- break;
- case 'domain':
- case 'path':
- case 'port':
- case 'version':
- case 'comment':
- case 'commenturl':
- case 'discard':
- case 'httponly':
- case 'samesite':
- $cookie[$attributeNameLC] = $attributeValue;
- break;
- default:
- $cookie['name'] = $attributeName;
- $cookie['value'] = $attributeValue;
- }
- }
- return $cookie;
- }
-
- protected function storeCookie ($cookie)
- {
-
- $this->discardCookie($cookie);
- $this->_cookies[] = $cookie;
- }
-
- protected function discardCookie ($cookie)
- {
- if (!isset($cookie['domain'])
- || !isset($cookie['path'])
- || !isset($cookie['path'])
- ) {
- throw new CAS_InvalidArgumentException('Invalid Cookie array passed.');
- }
- foreach ($this->_cookies as $key => $old_cookie) {
- if ( $cookie['domain'] == $old_cookie['domain']
- && $cookie['path'] == $old_cookie['path']
- && $cookie['name'] == $old_cookie['name']
- ) {
- unset($this->_cookies[$key]);
- }
- }
- }
-
- protected function expireCookies ()
- {
- foreach ($this->_cookies as $key => $cookie) {
- if (isset($cookie['expires']) && $cookie['expires'] < time()) {
- unset($this->_cookies[$key]);
- }
- }
- }
-
- protected function cookieMatchesTarget ($cookie, $target)
- {
- if (!is_array($target)) {
- throw new CAS_InvalidArgumentException(
- '$target must be an array of URL attributes as generated by parse_url().'
- );
- }
- if (!isset($target['host'])) {
- throw new CAS_InvalidArgumentException(
- '$target must be an array of URL attributes as generated by parse_url().'
- );
- }
-
- if ($cookie['secure'] && $target['scheme'] != 'https') {
- return false;
- }
-
-
- if (strpos($cookie['domain'], '.') === 0) {
-
- if (substr($cookie['domain'], 1) == $target['host']) {
-
- } else {
-
-
- $pos = strripos($target['host'], $cookie['domain']);
- if (!$pos) {
- return false;
- }
-
- if ($pos + strlen($cookie['domain']) != strlen($target['host'])) {
- return false;
- }
-
-
-
- $hostname = substr($target['host'], 0, $pos);
- if (strpos($hostname, '.') !== false) {
- return false;
- }
- }
- } else {
-
-
- if (strcasecmp($target['host'], $cookie['domain']) !== 0) {
- return false;
- }
- }
-
- if (isset($cookie['ports'])
- && !in_array($target['port'], $cookie['ports'])
- ) {
- return false;
- }
-
- if (strpos($target['path'], $cookie['path']) !== 0) {
- return false;
- }
- return true;
- }
- }
- ?>
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