1 ! Copyright (C) 2009 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors assocs combinators combinators.smart
4 destructors fry io io.encodings.utf8 kernel managed-server
5 namespaces parser sequences sorting splitting strings.parser
6 unicode.case unicode.categories calendar calendar.format
7 locals io.encodings.binary io.encodings.string prettyprint ;
8 FROM: namespaces => set ;
9 IN: managed-server.chat
11 TUPLE: chat-server < managed-server ;
14 commands [ H{ } clone ] initialize
17 chat-docs [ H{ } clone ] initialize
19 CONSTANT: line-beginning "-!- "
21 : send-line ( string -- )
22 write "\r\n" write flush ;
24 : handle-me ( string -- )
26 [ "* " username " " ] dip
27 ] "" append-outputs-as send-everyone ;
29 : handle-quit ( string -- )
30 client [ (>>object) ] [ t >>quit? drop ] bi ;
32 : handle-help ( string -- )
35 commands get keys natural-sort ", " join append send-line
39 [ "Unknown command: " prepend send-line ] if
43 chat-docs get at send-line ;
45 : username-taken-string ( username -- string )
46 "The username ``" "'' is already in use; try again." surround ;
48 : warn-name-changed ( old new -- )
50 [ line-beginning "``" ] 2dip
51 [ "'' is now known as ``" ] dip "''"
52 ] "" append-outputs-as send-everyone ;
54 : handle-nick ( string -- )
59 username-taken-string send-line
61 [ username swap warn-name-changed ]
62 [ username clients rename-at ]
63 [ client (>>username) ] tri
67 :: add-command ( quot docs key -- )
68 quot key commands get set-at
69 docs key chat-docs get set-at ;
72 """Syntax: /help [command]
73 Displays the documentation for a command."""
76 [ drop clients keys [ "``" "''" surround ] map ", " join send-line ]
78 Shows the list of connected users."""
81 [ drop gmt timestamp>rfc822 send-line ]
83 Returns the current GMT time.""" "time" add-command
86 """Syntax: /nick nickname
87 Changes your nickname."""
91 """Syntax: /me action"""
95 """Syntax: /quit [message]
96 Disconnects a user from the chat server.""" "quit" add-command
98 : handle-command ( string -- )
99 dup " " split1 swap >lower commands get at* [
100 call( string -- ) drop
102 2drop "Unknown command: " prepend send-line
105 : <chat-server> ( port -- managed-server )
106 "chat-server" utf8 chat-server new-managed-server ;
108 : handle-chat ( string -- )
110 [ username ": " ] dip
111 ] "" append-outputs-as send-everyone ;
113 M: chat-server handle-login
114 "Username: " write flush
117 M: chat-server handle-client-join
119 line-beginning username " has joined"
120 ] "" append-outputs-as send-everyone ;
122 M: chat-server handle-client-disconnect
124 line-beginning username " has quit "
125 client object>> dup [ "\"" dup surround ] when
126 ] "" append-outputs-as send-everyone ;
128 M: chat-server handle-already-logged-in
129 username username-taken-string send-line
132 M: chat-server handle-managed-client*
133 readln dup f = [ t client (>>quit?) ] when
135 "/" ?head [ handle-command ] [ handle-chat ] if