CTCPParser


1   /**
2          .;: Parser for CTCP Protocol :;.
3   
4          Parses a hashmap for the following possibilities:
5          - an ACTION
6          - a CTCP Request
7          - a CTCP Reply
8          - (DCC stuff is a possibility later)
9         
10  **/
11  
12  package rero.ircfw;
13  
14  import rero.ircfw.interfaces.FrameworkConstants;
15  
16  import java.util.regex.Pattern  ;
17  import java.util.HashMap  ;
18  import rero.util.StringParser;
19  
20  public class CTCPParser implements FrameworkConstants
21  {
22     protected static String   ctcpPattern = "\001(\\w++)(\\s*)(.*)\001";
23  
24     protected static Pattern   isCTCP = Pattern.compile(ctcpPattern);
25  
26     public HashMap   parseEvent (HashMap   eventData)
27     {
28         String   event, parms, data, target;
29  
30         String   type, parameters;
31  
32         event  = (String  )eventData.get($EVENT$);
33         parms  = (String  )eventData.get($PARMS$);
34         target = (String  )eventData.get($TARGET$);
35   
36         if ((! event.equals("NOTICE") && ! event.equals("PRIVMSG")) || parms == null )
37         {
38             return eventData;
39         }
40  
41         StringParser parser = new StringParser(parms, isCTCP);
42  
43         if (!parser.matches())
44         {                       // definetly not a CTCP we want nothing to do with it then.
45             return eventData;
46         }
47         
48         type       = parser.getParsedString(0); // thank god for regex's this would have taken forever
49         parameters = parser.getParsedString(2); // to code out before.
50  
51         parms = type + " " + parameters;
52         data  = target + " " + parms;       
53  
54         if (event.equals("PRIVMSG") && type.equals("ACTION"))
55         {
56            event = "ACTION";
57            data  = target + " " + parameters;       
58  
59            String   whitespace = parser.getParsedString(1);
60            if (whitespace.length() > 1)
61            {
62               parameters = whitespace.substring(1) + parameters;
63            }
64  
65            parms = parameters;
66         }
67  
68         if (event.equals("PRIVMSG"))
69         {
70            event = "REQUEST";
71         }
72  
73         if (event.equals("NOTICE"))
74         {
75            event = "REPLY";
76         }
77  
78         eventData.put($DATA$,  data);
79         eventData.put($PARMS$, parms); 
80         eventData.put($EVENT$, event);
81         eventData.put($TYPE$,  type);
82  
83         return eventData;
84     }
85  
86  }
87
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