1 files changed, 65 insertions, 0 deletions
diff --git a/src/org/jivesoftware/smackx/provider/CapsExtensionProvider.java b/src/org/jivesoftware/smackx/provider/CapsExtensionProvider.java
new file mode 100644
index 0000000..5a7cd2f
--- /dev/null
+++ b/src/org/jivesoftware/smackx/provider/CapsExtensionProvider.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2009 Jonas Ådahl.
+ * Copyright 2011-2013 Florian Schmaus
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smackx.provider;
+
+import java.io.IOException;
+
+import org.jivesoftware.smack.XMPPException;
+import org.jivesoftware.smack.packet.PacketExtension;
+import org.jivesoftware.smack.provider.PacketExtensionProvider;
+import org.jivesoftware.smackx.entitycaps.packet.CapsExtension;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+public class CapsExtensionProvider implements PacketExtensionProvider {
+    private static final int MAX_DEPTH = 10;
+
+    public PacketExtension parseExtension(XmlPullParser parser) throws XmlPullParserException, IOException,
+            XMPPException {
+        String hash = null;
+        String version = null;
+        String node = null;
+        int depth = 0;
+        while (true) {
+            if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equalsIgnoreCase("c")) {
+                hash = parser.getAttributeValue(null, "hash");
+                version = parser.getAttributeValue(null, "ver");
+                node = parser.getAttributeValue(null, "node");
+            }
+
+            if (parser.getEventType() == XmlPullParser.END_TAG && parser.getName().equalsIgnoreCase("c")) {
+                break;
+            } else {
+                parser.next();
+            }
+
+            if (depth < MAX_DEPTH) {
+                depth++;
+            } else {
+                throw new XMPPException("Malformed caps element");
+            }
+        }
+
+        if (hash != null && version != null && node != null) {
+            return new CapsExtension(node, version, hash);
+        } else {
+            throw new XMPPException("Caps elment with missing attributes");
+        }
+    }
+}