Implementation for channel mode 'l'.

Implementation for channel mode change 'l' (channel user limit).
Additionally, there exists a bug in the irc-api library that cuts off
the first character of the source IRC user. This has also been fixed,
and a patch has been included in the NOTICES file.

lib/installer-exclude/irc-api-1.0-NOTICE

@@ -1,7 +1,10 @@
 The IRC-API library is currently a snapshot version from VCS on https://code.google.com/p/irc-api.
 
-Additionally, one modification has been made to prevent joining large IRC channels to result in an occasional threading issue when adding users. The diff for the modification:
+Additionally:
+1. one modification has been made to prevent joining large IRC channels to result in an occasional threading issue when adding users. The diff for the modification:
+2. a modification has been made to fix an incorrect cut off of the first character of user names in channel mode change instances.
 
+1.
 diff --git a/src/main/java/com/ircclouds/irc/api/domain/IRCChannel.java b/src/main/java/com/ircclouds/irc/api/domain/IRCChannel.java
 index a97f2ce..8744eb8 100644
 --- a/src/main/java/com/ircclouds/irc/api/domain/IRCChannel.java
@@ -15,3 +18,24 @@ index a97f2ce..8744eb8 100644
  	private List<ChannelMode> chanModes = new ArrayList<ChannelMode>();
  	
  	public IRCChannel()
+
+2.
+commit 4f025450b77ba0bd058b5c852652e76f529e9ff0
+Author: Danny van Heumen <danny@dannyvanheumen.nl>
+Date:   Sat Jan 4 19:33:14 2014 +0100
+
+    Fix invalid cut off of first char of user nick.
+
+diff --git a/src/main/java/com/ircclouds/irc/api/om/AbstractChanModeBuilder.java b/src/main/java/com/ircclouds/irc/api/om/AbstractChanModeBuilder.java
+index b634e73..c19980f 100644
+--- a/src/main/java/com/ircclouds/irc/api/om/AbstractChanModeBuilder.java
++++ b/src/main/java/com/ircclouds/irc/api/om/AbstractChanModeBuilder.java
+@@ -63,7 +63,7 @@ public abstract class AbstractChanModeBuilder implements IBuilder<ChannelModeMes
+ 			}
+ 		}
+ 		
+-		return new ChannelModeMessage(ParseUtils.getSource(_cmpnts[0].substring(1)), _cmpnts[2], getModeStr(_cmpnts), _addedModes, _removedModes);
++		return new ChannelModeMessage(ParseUtils.getSource(_cmpnts[0]), _cmpnts[2], getModeStr(_cmpnts), _addedModes, _removedModes);
+ 	}
+ 
+ 	protected abstract IRCServerOptions getIRCServerOptions();

src/net/java/sip/communicator/impl/protocol/irc/IrcStack.java

@@ -805,6 +805,10 @@ public void onChannelMessage(ChannelPrivMsg msg)
 
         private void processModeMessage(ChannelModeMessage msg)
         {
+            String sourceNick = ((IRCUser) msg.getSource()).getNick();
+            ChatRoomMemberIrcImpl sourceMember =
+                (ChatRoomMemberIrcImpl) this.chatroom
+                    .getChatRoomMember(sourceNick);
             ModeParser parser = new ModeParser(msg);
             for (ModeEntry mode : parser.getModes())
             {
@@ -885,6 +889,33 @@ private void processModeMessage(ChannelModeMessage msg)
                         }
                     }
                     break;
+                case LIMIT:
+                    MessageIrcImpl message;
+                    if (mode.isAdded())
+                    {
+                        try
+                        {
+                            message =
+                                new MessageIrcImpl("channel limit set to "
+                                    + Integer.parseInt(mode.getParams()[0]),
+                                    "text/plain", "UTF-8", null);
+                        }
+                        catch (NumberFormatException e)
+                        {
+                            e.printStackTrace();
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        message =
+                            new MessageIrcImpl("channel limit removed",
+                                "text/plain", "UTF-8", null);
+                    }
+                    this.chatroom.fireMessageReceivedEvent(message,
+                        sourceMember, new Date(),
+                        ChatRoomMessageReceivedEvent.SYSTEM_MESSAGE_RECEIVED);
+                    break;
                 default:
                     System.out.println("Unsupported mode '"
                         + (mode.isAdded() ? "+" : "-") + mode.getMode()

src/net/java/sip/communicator/impl/protocol/irc/Mode.java

@@ -2,38 +2,75 @@
 
 import net.java.sip.communicator.service.protocol.ChatRoomMemberRole;
 
+/**
+ * IRC Modes enum
+ * 
+ * @author danny
+ */
 public enum Mode
 {
     OWNER('O', ChatRoomMemberRole.OWNER),
     OPERATOR('o', ChatRoomMemberRole.ADMINISTRATOR),
-    VOICE('v', ChatRoomMemberRole.MEMBER);
+    VOICE('v', ChatRoomMemberRole.MEMBER),
-    
+    LIMIT('l', null);
+
+    /**
+     * Find Mode instance by mode char.
+     * 
+     * @param symbol mode char
+     * @return returns instance
+     */
     public static Mode bySymbol(char symbol)
     {
-        for(Mode mode : Mode.values())
+        for (Mode mode : Mode.values())
         {
             if (mode.getSymbol() == symbol)
             {
                 return mode;
             }
         }
-        throw new IllegalArgumentException("Unknown mode symbol provided. ('"+symbol+"')");
+        throw new IllegalArgumentException("Unknown mode symbol provided. ('"
+            + symbol + "')");
     }
-    
+
+    /**
+     * mode char
+     */
     final private char symbol;
+
+    /**
+     * ChatRoomMemberRole or null
+     */
     final private ChatRoomMemberRole role;
-    
+
+    /**
+     * Create Mode instance.
+     * 
+     * @param symbol mode char
+     * @param role ChatRoomMemberRole or null
+     */
     private Mode(char symbol, ChatRoomMemberRole role)
     {
         this.symbol = symbol;
         this.role = role;
     }
-    
+
+    /**
+     * Get character symbol for mode.
+     * 
+     * @return returns char symbol
+     */
     public char getSymbol()
     {
         return this.symbol;
     }
-    
+
+    /**
+     * Get corresponding ChatRoomMemberRole instance if available or null
+     * otherwise.
+     * 
+     * @return returns ChatRoomMemberRole instance or null
+     */
     public ChatRoomMemberRole getRole()
     {
         return this.role;

src/net/java/sip/communicator/impl/protocol/irc/ModeParser.java

@@ -63,6 +63,9 @@ private ModeEntry process(boolean add, char mode)
             return new ModeEntry(add, Mode.bySymbol(mode), this.params[this.index++]);
         case 'v':
             return new ModeEntry(add, Mode.bySymbol(mode), this.params[this.index++]);
+        case 'l':
+            String[] params = (add ? new String[] { this.params[this.index++] } : new String[]{});
+            return new ModeEntry(add, Mode.bySymbol(mode), params);
         default:
             throw new IllegalArgumentException(""+mode);
         }