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-rw-r--r--lib/jabber.php13
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/jabber.php b/lib/jabber.php
index e6529446b..97d02544d 100644
--- a/lib/jabber.php
+++ b/lib/jabber.php
@@ -27,11 +27,14 @@ function jabber_valid_base_jid($jid) {
}
function jabber_normalize_jid($jid) {
- preg_match("/(?:([^\@]+)\@)?([^\/]+)(?:\/(.*))?$/", $jid, $matches);
- $node = $matches[1];
- $server = $matches[2];
- $resource = $matches[3];
- return strtolower($node.'@'.$server);
+ if (preg_match("/(?:([^\@]+)\@)?([^\/]+)(?:\/(.*))?$/", $jid, $matches)) {
+ $node = $matches[1];
+ $server = $matches[2];
+ $resource = $matches[3];
+ return strtolower($node.'@'.$server);
+ } else {
+ return NULL;
+ }
}
function jabber_connect($resource=NULL) {