1 ! Copyright (C) 2009 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors assocs calendar calendar.format
4 combinators.smart io io.crlf io.encodings.utf8 kernel locals
5 managed-server namespaces sequences sorting splitting
7 IN: managed-server.chat
9 TUPLE: chat-server < managed-server ;
12 commands [ H{ } clone ] initialize
15 chat-docs [ H{ } clone ] initialize
17 CONSTANT: line-beginning "-!- "
19 : send-line ( string -- )
22 : handle-me ( string -- )
24 [ "* " username " " ] dip
25 ] "" append-outputs-as send-everyone ;
27 : handle-quit ( string -- )
28 client [ object<< ] [ t >>quit? drop ] bi ;
30 : handle-help ( string -- )
33 commands get keys natural-sort ", " join append send-line
37 [ "Unknown command: " prepend send-line ] if
41 chat-docs get at send-line ;
43 : username-taken-string ( username -- string )
44 "The username ``" "'' is already in use; try again." surround ;
46 : warn-name-changed ( old new -- )
48 [ line-beginning "``" ] 2dip
49 [ "'' is now known as ``" ] dip "''"
50 ] "" append-outputs-as send-everyone ;
52 : handle-nick ( string -- )
57 username-taken-string send-line
59 [ username swap warn-name-changed ]
60 [ username clients rename-at ]
61 [ client username<< ] tri
65 :: add-command ( quot docs key -- )
66 quot key commands get set-at
67 docs key chat-docs get set-at ;
70 "Syntax: /help [command]
71 Displays the documentation for a command."
74 [ drop clients keys [ "``" "''" surround ] map ", " join send-line ]
76 Shows the list of connected users."
79 [ drop now-gmt timestamp>rfc822 send-line ]
81 Returns the current GMT time." "time" add-command
84 "Syntax: /nick nickname
85 Changes your nickname."
93 "Syntax: /quit [message]
94 Disconnects a user from the chat server." "quit" add-command
96 : handle-command ( string -- )
97 dup " " split1 swap >lower commands get at* [
98 call( string -- ) drop
100 2drop "Unknown command: " prepend send-line
103 : <chat-server> ( port -- managed-server )
104 "chat-server" utf8 chat-server new-managed-server ;
106 : handle-chat ( string -- )
108 [ username ": " ] dip
109 ] "" append-outputs-as send-everyone ;
111 M: chat-server handle-login
112 "Username: " write flush
115 M: chat-server handle-client-join
117 line-beginning username " has joined"
118 ] "" append-outputs-as send-everyone ;
120 M: chat-server handle-client-disconnect
122 line-beginning username " has quit "
123 client object>> dup [ "\"" dup surround ] when
124 ] "" append-outputs-as send-everyone ;
126 M: chat-server handle-already-logged-in
127 username username-taken-string send-line
130 M: chat-server handle-managed-client*
131 readln dup f = [ t client quit?<< ] when
133 "/" ?head [ handle-command ] [ handle-chat ] if