1 files changed, 69 insertions, 0 deletions
diff --git a/xmpp.util.php b/xmpp.util.php
new file mode 100644
index 0000000..5bde0c0
--- /dev/null
+++ b/xmpp.util.php
@@ -0,0 +1,69 @@
+<?php
+/*
+ * xmpp jid util functions.
+ */
+ 
+function getJidDomain($jid) {
+    if (null == $jid) {
+        return null;
+    }
+    
+    $atIndex = strpos($jid, '@');
+    $slashIndex = strpos($jid, '/');
+    
+    if ($slashIndex !== false) {
+        if ($slashIndex > $atIndex) {// 'local@domain.foo/resource' and 'local@domain.foo/res@otherres' case
+            return substr($jid, $atIndex + 1, $slashIndex - $atIndex + 1);
+        } else {// 'domain.foo/res@otherres' case
+            return substr($jid, 0, $slashIndex);
+        }
+    } else {
+        return substr($jid, $atIndex + 1);
+    }
+}
+
+function getJidLocalPart($jid) {
+    if ($jid == null) {
+        return null;
+    }
+
+    $atIndex = strpos($jid, '@');
+    if ($atIndex === false || $atIndex == 0) {
+        return "";
+    }
+    
+    $slashIndex = strpos($jid, '/');
+    if ($slashIndex !== false && $slashIndex < $atIndex) {
+        return "";
+    } else {
+        return substr($jid, 0, $atIndex);
+    }
+}
+
+function getBareJid($jid) {
+    if ($jid == null) {
+        return null;
+    }
+    
+    $slashIndex = strpos($jid, '/');
+    if ($slashIndex === false) {
+        return $jid;
+    } else if ($slashIndex == 0) {
+        return "";
+    } else {
+        return substr($jid, 0, $slashIndex);
+    }
+}
+
+function getResource($jid) {
+    if ($jid == null) {
+        return null;
+    }
+
+    $slashIndex = strpos($jid, '/');
+    if ($slashIndex + 1 > strlen($jid) || $slashIndex === false) {
+        return "";
+    } else {
+        return substr($jid, $slashIndex + 1);
+    }
+}
+\ No newline at end of file