Added xmpp:restart (BOSH) support. JM-1438

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@10702 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/http/BoshBindingError.java

@@ -21,70 +21,70 @@ public enum BoshBindingError {
      * The format of an HTTP header or binding element received from the client is unacceptable
      * (e.g., syntax error), or Script Syntax is not supported.
      */
-    badRequest(Type.terminal, "bad-request", HttpServletResponse.SC_BAD_REQUEST),
+    badRequest(Type.terminate, "bad-request", HttpServletResponse.SC_BAD_REQUEST),
     /**
      * The target domain specified in the 'to' attribute or the target host or port specified in the
      * 'route' attribute is no longer serviced by the connection manager.
      */
-    hostGone(Type.terminal, "host-gone"),
+    hostGone(Type.terminate, "host-gone"),
     /**
      * The target domain specified in the 'to' attribute or the target host or port specified in the
      * 'route' attribute is unknown to the connection manager.
      */
-    hostUnknown(Type.terminal, "host-unknown"),
+    hostUnknown(Type.terminate, "host-unknown"),
     /**
      * The initialization element lacks a 'to' or 'route' attribute (or the attribute has no value)
      * but the connection manager requires one.
      */
-    improperAddressing(Type.terminal, "improper-addressing"),
+    improperAddressing(Type.terminate, "improper-addressing"),
     /**
      * The connection manager has experienced an internal error that prevents it from servicing the
      * request.
      */
-    internalServerError(Type.terminal, "internal-server-error"),
+    internalServerError(Type.terminate, "internal-server-error"),
     /**
      * (1) 'sid' is not valid, (2) 'stream' is not valid, (3) 'rid' is larger than the upper limit
      * of the expected window, (4) connection manager is unable to resend response, (5) 'key'
      * sequence is invalid (6) script syntax is not enabled
      */
-    itemNotFound(Type.terminal, "item-not-found", HttpServletResponse.SC_NOT_FOUND),
+    itemNotFound(Type.terminate, "item-not-found", HttpServletResponse.SC_NOT_FOUND),
     /**
      * Another request being processed at the same time as this request caused the session to
      * terminate.
      */
-    otherRequest(Type.terminal, "other-request"),
+    otherRequest(Type.terminate, "other-request"),
     /**
      * The client has broken the session rules (polling too frequently, requesting too frequently,
      * too many simultaneous requests).
      */
-    policyViolation(Type.terminal, "policy-violation",
+    policyViolation(Type.terminate, "policy-violation",
             HttpServletResponse.SC_FORBIDDEN),
     /**
      * The connection manager was unable to connect to, or unable to connect securely to, or has
      * lost its connection to, the server.
      */
-    remoteConnectionFailed(Type.terminal, "remote-connection-failed"),
+    remoteConnectionFailed(Type.terminate, "remote-connection-failed"),
     /**
      * Encapsulates an error in the protocol being transported.
      */
-    remoteStreamError(Type.terminal, "remote-stream-error"),
+    remoteStreamError(Type.terminate, "remote-stream-error"),
     /**
      * The connection manager does not operate at this URI (e.g., the connection manager accepts
      * only SSL or TLS connections at some https: URI rather than the http: URI requested by the
      * client). The client may try POSTing to the URI in the content of the <uri/> child
      * element.
      */
-    seeOtherUri(Type.terminal, "see-other-uri"),
+    seeOtherUri(Type.terminate, "see-other-uri"),
     /**
      * The connection manager is being shut down. All active HTTP sessions are being terminated. No
      * new sessions can be created.
      */
-    systemShutdown(Type.terminal, "system-shutdown"),
+    systemShutdown(Type.terminate, "system-shutdown"),
     /**
      * The error is not one of those defined herein; the connection manager SHOULD include
      * application-specific information in the content of the <body> wrapper.
      */
-    undefinedCondition(Type.terminal, "undefined-condition");
+    undefinedCondition(Type.terminate, "undefined-condition");
 
     private Type errorType;
     private String condition;
@@ -127,10 +127,10 @@ public enum BoshBindingError {
 
     public enum Type {
         /**
-         * The terminal error condition prevents the client from making any further requests until a
+         * The terminate error condition prevents the client from making any further requests until a
          * new session is established.
          */
-        terminal(null),
+        terminate(null),
         /**
          * In the case of a recoverable binding error the client MUST repeat the HTTP request and
          * all the preceding HTTP requests that have not received responses. The content of these

src/java/org/jivesoftware/openfire/http/HttpBindException.java

@@ -28,6 +28,6 @@ public class HttpBindException extends Exception {
     }
 
     public boolean shouldCloseSession() {
-        return error.getErrorType() == BoshBindingError.Type.terminal;
+        return error.getErrorType() == BoshBindingError.Type.terminate;
     }
 }

src/java/org/jivesoftware/openfire/http/HttpBindServlet.java

@@ -12,10 +12,7 @@
 package org.jivesoftware.openfire.http;
 
 import org.apache.commons.lang.StringEscapeUtils;
-import org.dom4j.Document;
-import org.dom4j.DocumentException;
-import org.dom4j.DocumentHelper;
-import org.dom4j.Element;
+import org.dom4j.*;
 import org.dom4j.io.XMPPPacketReader;
 import org.jivesoftware.openfire.auth.UnauthorizedException;
 import org.jivesoftware.openfire.net.MXParser;
@@ -192,7 +189,7 @@ public class HttpBindServlet extends HttpServlet {
             }
         }
         finally {
-            if (bindingError.getErrorType() == BoshBindingError.Type.terminal) {
+            if (bindingError.getErrorType() == BoshBindingError.Type.terminate) {
                 session.close();
             }
         }
@@ -242,12 +239,21 @@ public class HttpBindServlet extends HttpServlet {
             }
 
             String type = rootNode.attributeValue("type");
+            String restartStream = rootNode.attributeValue(new QName("restart", rootNode.getNamespaceForPrefix("xmpp")));
             int pauseDuration = getIntAttribue(rootNode.attributeValue("pause"), -1);
 
             if ("terminate".equals(type)) {
                 session.close();
                 respond(session, response, createEmptyBody(), request.getMethod());
             }
+            else if ("true".equals(restartStream) && rootNode.nodeCount() == 0) {
+                try {
+					respond(session, response, createSessionRestartResponse(session), request.getMethod());
+				}
+				catch (DocumentException e) {
+					Log.error("Error sending session restart response to client.", e);
+				}
+            }
             else if (pauseDuration > 0 && pauseDuration <= session.getMaxPause()) {
             	session.pause(pauseDuration);
                 respond(session, response, createEmptyBody(), request.getMethod());
@@ -269,6 +275,19 @@ public class HttpBindServlet extends HttpServlet {
         }
     }
 
+    private String createSessionRestartResponse(HttpSession session) throws DocumentException {
+        Element response = DocumentHelper.createElement("body");
+        response.addNamespace("", "http://jabber.org/protocol/httpbind");
+        response.addNamespace("stream", "http://etherx.jabber.org/streams");
+
+        Element features = response.addElement("stream:features");
+        for (Element feature : session.getAvailableStreamFeaturesElements()) {
+            features.add(feature);
+        }
+
+        return response.asXML();
+    }
+
     private void createNewSession(HttpServletRequest request, HttpServletResponse response,
                                   Element rootNode)
             throws IOException

src/java/org/jivesoftware/openfire/http/HttpSession.java

@@ -127,9 +127,11 @@ public class HttpSession extends LocalClientSession {
     public Collection<Element> getAvailableStreamFeaturesElements() {
         List<Element> elements = new ArrayList<Element>();
 
-        Element sasl = SASLAuthentication.getSASLMechanismsElement(this);
-        if (sasl != null) {
-            elements.add(sasl);
+        if (getAuthToken() == null) {
+	        Element sasl = SASLAuthentication.getSASLMechanismsElement(this);
+	        if (sasl != null) {
+	            elements.add(sasl);
+	        }
         }
 
         // Include Stream Compression Mechanism