Added guest account support to the CIFS server. Refactored authenticator code and moved

common code down into the base class.
Added configuration value to control if unknown users should be mapped to the guest account.
Fixed a couple of uncaught access denied exceptions in the CIFS protocol handler.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2317 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/server/filesys/DefaultShareMapper.java

@@ -16,6 +16,8 @@
  */
 package org.alfresco.filesys.server.filesys;
 
+import java.util.Enumeration;
+
 import org.alfresco.config.ConfigElement;
 import org.alfresco.filesys.server.SrvSession;
 import org.alfresco.filesys.server.auth.InvalidUserException;
@@ -99,20 +101,33 @@ public class DefaultShareMapper implements ShareMapper
 
         SharedDevice share = null;
 
-        // Find the required share by name/type. Use a case sensitive search first, if that fails
-        // use a case
-        // insensitive search.
+        // Search the sessions dynamic share list first
 
-        share = m_config.getShares().findShare(name, typ, false);
-
-        if (share == null)
-        {
-
-            // Try a case insensitive search for the required share
-
-            share = m_config.getShares().findShare(name, typ, true);
+        if ( sess.hasDynamicShares()) {
+            
+            //  Check if the required share exists in the sessions dynamic share list
+            
+            share = sess.getDynamicShareList().findShare(name, typ, true);
         }
 
+        // If we did not find a share then search the global share list
+        
+        if ( share == null)
+        {
+            // Find the required share by name/type. Use a case sensitive search first, if that fails
+            // use a case insensitive search.
+    
+            share = m_config.getShares().findShare(name, typ, false);
+    
+            if (share == null)
+            {
+    
+                // Try a case insensitive search for the required share
+    
+                share = m_config.getShares().findShare(name, typ, true);
+            }
+        }
+        
         // Check if the share is available
 
         if (share != null && share.getContext() != null && share.getContext().isAvailable() == false)
@@ -130,6 +145,30 @@ public class DefaultShareMapper implements ShareMapper
      */
     public void deleteShares(SrvSession sess)
     {
+        //  Check if the session has any dynamic shares
+        
+        if ( sess.hasDynamicShares() == false)
+            return;
+            
+        //  Delete the dynamic shares
+        
+        SharedDeviceList shares = sess.getDynamicShareList();
+        Enumeration<SharedDevice> enm = shares.enumerateShares();
+        
+        while ( enm.hasMoreElements()) {
+
+            //  Get the current share from the list
+            
+            SharedDevice shr = (SharedDevice) enm.nextElement();
+            
+            //  Close the shared device
+            
+            shr.getContext().CloseContext();
+        }
+        
+        // Clear the dynamic share list
+        
+        shares.removeAllShares();
     }
 
     /**
@@ -149,6 +188,13 @@ public class DefaultShareMapper implements ShareMapper
 
         SharedDeviceList shrList = new SharedDeviceList(m_config.getShares());
 
+        if ( sess != null && sess.hasDynamicShares()) {
+            
+            // Add the per session dynamic shares
+            
+            shrList.addShares(sess.getDynamicShareList());
+        }
+
         // Remove unavailable shares from the list and return the list
 
         if (allShares == false)