1 files changed, 96 insertions, 0 deletions
diff --git a/mod/openid.php b/mod/openid.php
new file mode 100644
index 000000000..e2cea7d85
--- /dev/null
+++ b/mod/openid.php
@@ -0,0 +1,96 @@
+<?php
+
+
+require_once('library/openid.php');
+
+
+function openid_content(&$a) {
+
+	$noid = get_config('system','no_openid');
+	if($noid)
+		goaway(z_root());
+
+	logger('mod_openid ' . print_r($_REQUEST,true), LOGGER_DATA);
+
+	if((x($_GET,'openid_mode')) && (x($_SESSION,'openid'))) {
+
+		$openid = new LightOpenID;
+
+		if($openid->validate()) {
+
+			$authid = normalise_openid($_REQUEST['openid_identity']);
+
+			if(! strlen($authid)) {
+				logger( t('OpenID protocol error. No ID returned.') . EOL);
+				goaway(z_root());
+			}
+
+			$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` 
+				FROM `user` WHERE `openid` = '%s' AND `blocked` = 0 
+				AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
+				dbesc($authid)
+			);
+
+			if($r && count($r)) {
+
+				// successful OpenID login
+
+				unset($_SESSION['openid']);
+
+				require_once('include/security.php');
+				authenticate_success($r[0],true,true);
+
+				// just in case there was no return url set 
+				// and we fell through
+
+				goaway(z_root());
+			}
+
+			// Successful OpenID login - but we can't match it to an existing account.
+			// New registration?
+
+			if($a->config['register_policy'] == REGISTER_CLOSED) {
+				notice( t('Account not found and OpenID registration is not permitted on this site.') . EOL);
+				goaway(z_root());
+			}
+
+			unset($_SESSION['register']);
+			$args = '';
+			$attr = $openid->getAttributes();
+			if(is_array($attr) && count($attr)) {
+				foreach($attr as $k => $v) {
+					if($k === 'namePerson/friendly')
+						$nick = notags(trim($v));
+					if($k === 'namePerson/first')
+						$first = notags(trim($v));
+					if($k === 'namePerson')
+						$args .= '&username=' . notags(trim($v));
+					if($k === 'contact/email')
+						$args .= '&email=' . notags(trim($v));
+					if($k === 'media/image/aspect11')
+						$photosq = bin2hex(trim($v));
+					if($k === 'media/image/default')
+						$photo = bin2hex(trim($v));
+				}
+			}
+			if($nick)
+				$args .= '&nickname=' . $nick;
+			elseif($first)
+				$args .= '&nickname=' . $first;
+
+			if($photosq)
+				$args .= '&photo=' . $photosq;
+			elseif($photo)
+				$args .= '&photo=' . $photo;
+
+			$args .= '&openid_url=' . notags(trim($authid));
+
+			goaway($a->get_baseurl() . '/register' . $args);
+
+			// NOTREACHED
+		}
+	}
+	notice( t('Login failed.') . EOL);
+	goaway(z_root());
+	// NOTREACHED
+}