ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/kgsueme/doc/protocol.xml
Revision: 1.49
Committed: Mon May 17 23:38:10 2004 UTC (20 years ago) by pcg
Content type: text/xml
Branch: MAIN
Changes since 1.48: +4 -4 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 <?xml version="1.0" encoding="utf-8"?>
2 <html>
3 <head>
4 <title>KGS Protocol Description</title>
5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
6 <!--
7 Copyright (C) 2003 Marc Lehmannn &lt;pcg@goof.com&gt;
8
9 You can redistribute and/or modify this document under the terms of
10 the GNU General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any
12 later version.
13
14 This document is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 -->
23 </head>
24 <body>
25
26 <h1>$Revision: 1.48 $</h1>
27
28 <h1>KGS Protocol Description</h1>
29
30 <p>This XML document describes the KGS protocol. It is also used
31 to automatically generate the perl parser for all the messages and
32 structures in the protocol. Adapting it to other languages should be
33 almost trivial.</p>
34
35 <p><b>Please note that wms has told me that he will change the
36 protocol in response to my efforts. No problems with changing the
37 protocol for good, but he does this just to make it more difficult
38 to reverse-engineer it, since his changes are neither required, nor
39 useful (they just make the protocol less robust, without adding added
40 value). He doesn't even care that this locks out some users who cannot
41 upgrade (cgoban2 isn't available for their platform anymore). It hurts
42 to see such a waste of time and efforts that could have been used to
43 fix bugs or improve the client...</b></p>
44
45 <p>If you feel you need to update the visual appearance of this
46 document, feel free to look <tt>doc/doc2html.xsl</tt> and improve
47 it.</p>
48
49 <p>The current version of this document can always be found at
50 <a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/kgsueme/kgsueme/doc/protocol.xml?rev=HEAD&amp;content-type=text/xml">here</a>, while
51 the HTML version of it can be found
52 <a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/kgsueme/kgsueme/doc/protocol.html?rev=HEAD&amp;content-type=text/html">here</a>.
53 (update: sourceforge is weeks behind on their anonymous cvs servers so the above might be out-of-date. sorry.)</p>
54
55 <h2>Structure and conventions of this document and the protocol</h2>
56
57 <p>"ORIGIN: CLIENT" means messages send from the client to the server,
58 while "ORIGIN: SERVER" means messages send by the server to the
59 client.</p>
60
61 <p>Everything on the wire is in little-endian format (what a shame).</p>
62
63 <p>Primitive types are mostly integers (signed
64 "<code>I</code>&lt;bits&gt;", unsigned "<code>U</code>&lt;bits&gt;"),
65 ascii strings ("<code>username</code>"), zero- or non-terminated
66 UCS2-Strings ("<code>ZSTRING</code>" or "<code>STRING</code>"). Yes,
67 I know java is supposed to do UTF-16, but no implementation seems to
68 care...</p>
69
70 <p>For the rest, go figure or bug me, <a href="mailto:pcg@goof.com">Marc Lehmann &lt;pcg@goof.com&gt;</a></p>
71
72 <h2>Stream and message structure.</h2>
73
74 <p>After connecting to the server, a handshake byte is sent. It's
75 the major version number of the protocol the client expects to
76 receive. Version 3 and 4 are mostly the same, except that Version 4
77 clients expect server messages to be compressed, version 3 clients
78 not.</p>
79
80 <p>The server sends back his protocol number, which is always 3 in
81 the current protocol. Most of the protocol variation is determined by
82 the server using the client version that is used in the initial login
83 message, not the initial handshake byte.</p>
84
85 <p>After the initial handshake, the client sends uncompressed
86 messages, while the server sends back a zlib-compressed
87 stream (<a href="http://rfc1950.x42.com/">rfc1950</a> and <a
88 href="http://rfc1950.x42.com/">rfc1951</a>).</p>
89
90 <p>All messages have the same header:</p>
91
92 <struct name="message_header">
93 <member name="_unknown" type="U16"/>
94 <member name="length" type="U16"/>
95
96 <p>The length is the length of the full message including the header.</p>
97
98 <p>Beginning with version 2.5.x, a number is xored into the low
99 byte of the length in <em>sent</em> packages only, as given by the
100 following recurrence: <code>rand[0] = 0; rand[i+1] = msg[i].length
101 + (rand[i] * 0x04c2af9b + 0xfffffffb); xorbyte = rand &gt;&gt;
102 24</code>, all in 32 bit unsigned iso-c arithmetic.</p>
103
104 <member name="type" type="U16"/>
105 <p>If the type is &gt;= 0x4000 this is a message for a specific channel. The channel
106 number is always the next U16.</p>
107
108 <p>Beginning with version 2.5.x, a number is <em>added</em> on <em>received</em>
109 messages only. The algorithm is as follows:
110
111 <pre>
112 msglen &lt; 44: type = typefield
113 msglen &gt; 44: type = (typefield + rand[i]) % 0x10000
114 rand[0] = 0
115 rand[i+1] = username[type % length username] + rand[i] * (type - 0x6cdd)
116 where username is the user name of the logged-in user. coooool.
117 </pre>
118 </p>
119
120 </struct>
121
122 <h2>Primitive types used in the protocol.</h2>
123
124 <p>Apart from the basic types, I need to define some extra types to
125 deal with fixed-point values (based on integer types) or fixed-length
126 strings (either 7-bit-ascii or more limited (<code>A</code>), or UCS-2
127 based (<code>S</code>)).</p>
128
129 <type name="username" type="A" length="10"/>
130
131 <p>The basic user or login name, used throughout the protocol
132 as a handle to the user.</p>
133
134 <type name="roomname" type="S" length="25"/><!-- argh, how horribly broken -->
135
136 <p>Many strings in the protocol are fixed-width for no good reason
137 (maybe this is one reason for using compression in newer versions, as
138 the packets itself are wasting lots of space.</p>
139
140 <type name="realname" type="S" length="50"/>
141 <type name="email" type="S" length="70"/>
142 <type name="userinfo" type="S" length="1000"/>
143 <type name="url" type="A" length="100"/>
144
145 <p>Used in user_record.</p>
146
147 <type name="locale" type="A" length="5"/>
148
149 <p>A kind of locale specifier. It seems the general format seems to be
150 lowercase language, underscore, uppercase location, e.g. en_US. More
151 fancy specifications don't fit.</p>
152
153 <type name="flag" type="U8" multiplier="1"/>
154
155 <p>Just a simple boolean value. 0 means false, and 1 generally true,
156 but I suggest accepting != 0 as true.</p>
157
158 <type name="komi16" type="I16" multiplier="2"/>
159 <type name="komi32" type="I32" multiplier="2"/>
160 <type name="komi324" type="I32" multiplier="4"/>
161
162 <p>Komi values are multiplied by 2 to make them integer in the
163 protocol. Well, *most* of the time at least...</p>
164
165 <type name="result" type="I32" multiplier="2"/>
166
167 <p>The game result is also multiplied by two to give it higher
168 resolution. There are also special values for wins by time etc., either
169 in result or in the score* types, or both :)</p>
170
171 <type name="score16" type="I16" multiplier="4"/>
172 <type name="score32" type="I32" multiplier="4"/>
173 <type name="score1000" type="I32" multiplier="1000"/>
174
175 <p>A score value (used for displaying the score at the end of a game)
176 are multiplied by four for a change (the 0.25 resolution is not
177 used). In game structures it is encoded by dividing by two, though, so
178 watch out! And in some others, it's encoded by multiplying by 1000...
179 yuck!</p>
180
181 <type name="time" type="U32" multiplier="1000"/>
182
183 <p>Time values are multiplied by 1000, giving them millisecond
184 accuracy.</p>
185
186 <type name="timestamp" type="U64" multiplier="1000"/>
187
188 <p>64 bit timeval, milliseconds since posix epoch, e.g. <code>my
189 ($year, $month, $day) = (gmtime $date * 0.001)[5,4,3];</code></p>
190
191 <type name="password" type="U64"/>
192
193 <p>Password is a number calculated as follows (VERY insecure, basically
194 plaintext!): <code>password = 0; for char in characters do password ←
195 password * 1055 + ascii_code (char)</code></p>
196
197 <h2>Enumeration and set types used in the protocol.</h2>
198
199 <enum name="GAMETYPE">
200 <member name="DEMONSTRATION" value="0"/>
201 <member name="TEACHING" value="1"/>
202 <member name="FREE" value="2"/>
203 <member name="RATED" value="3"/>
204 <member name="TYPE4" value="4"/>
205 Probably not used, but the protocol has space for it it seems.
206 </enum>
207
208 <enum name="GAMEOPT">
209 <member name="NONE" value="0"/>
210 <member name="LECTURE" value="1"/>
211 <member name="PRIVATE" value="2"/>
212 <member name="SIMUL" value="3"/>
213 </enum>
214
215 <set name="GAMEFLAG">
216 <member name="SCORED" value="1"/>
217 <member name="ADJOURNED" value="2"/>
218 <member name="UPLOADED" value="4"/>
219 </set>
220
221 <set name="ROOMFLAG">
222 <member name="ADMIN" value="0x01"/>
223 <p>Admins only(?)</p>
224 <member name="DEFAULT" value="0x04"/>
225 <p>Seems to be set on the english room. Or maybe not.</p>
226 <member name="PRIVATE" value="0x10"/>
227 <p>This room is private.</p>
228 </set>
229
230 <set name="GAMESTATUS">
231 <member name="INPLAY" value="0x80"/>
232 </set>
233
234 <enum name="SCORE">
235 <p>Special score values, in addition to numerical scores. Some are also used with their
236 negative value.</p>
237
238 <member name="TIMEOUT" value="16384 / 4"/>
239 Also used negatively to score for white instead of black.
240
241 <member name="RESIGN" value="16385 / 4"/>
242 Also used negatively to score for white instead of black.
243
244 <member name="FORFEIT" value=" 0 / 4"/>
245 Also used negatively to score for white instead of black.
246
247 <member name="JIGO" value="16386 / 4"/>
248
249 <member name="NO_RESULT" value="16386 / 4"/>
250 <member name="ADJOURNED" value="16387 / 4"/>
251 <member name="UNKNOWN" value="16389 / 4"/>
252 </enum>
253
254 <enum name="RULESET">
255 <member name="JAPANESE" value="0"/>
256 <member name="CHINESE " value="1"/>
257 <member name="AGA" value="2"/>
258 <member name="NEW_ZEALAND" value="3"/>
259 </enum>
260
261 <enum name="TIMESYS">
262 <member name="NONE" value="0"/>
263 <member name="ABSOLUTE" value="1"/>
264 <member name="BYO_YOMI" value="2"/>
265 <member name="CANADIAN" value="3"/>
266 </enum>
267
268 <enum name="COLOUR">
269 <p>Convinience constants used in several places.</p>
270 <member name="BLACK" value="0"/>
271 <member name="WHITE" value="1"/>
272 </enum>
273
274 <h2>Structs used in send &amp; receive messages</h2>
275
276 <struct name="user" class="KGS::User">
277
278 <p>Almost everywhere a user + flags is required, even used in some places
279 where only a username is required. I see no general rule on when a
280 complete user and when a partial user is required.</p>
281
282 <member name="name" type="username"/>
283 <member name="flags" type="U32" value="1"/>
284 </struct>
285
286 <struct name="rules" class="KGS::Rules">
287
288 <p>This structure is used for challenges as well as in the special
289 TREE "subprotocol". It tightly encodes the game parameters.</p>
290
291 <member name="ruleset" type="U8"/>
292 <member name="size" type="U8"/>
293 <member name="handicap" type="U8"/>
294 <member name="komi" type="komi16"/>
295 <member name="timesys" type="U8"/>
296 <member name="time" type="U32"/>
297 <member name="interval" type="U32"/>
298 byo-yomi time / canadian time
299 <member name="count" type="U16"/>
300 periods / moves
301 </struct>
302
303 <h2>Structs used in messages from the client</h2>
304
305 <h2>Client-generated messages</h2>
306
307 <message type="0000" name="login" src="client">
308
309 <p>Sent to login, usually the first message sent. The password needs to be set when the
310 guest flag is true.
311 Possible replies: <ref reply="login"/>. Followed by: <ref reply="timewarning_default"/> <ref reply="chal_defaults"/>
312 </p>
313
314 <member name="ver_major" type="U32" value="2"/>
315 <member name="ver_minor" type="U32" value="5"/>
316 <member name="ver_micro" type="U32" value="7"/>
317 <member name="name" type="username"/>
318 <member name="password" type="password" value="0"/>
319 <member name="guest" type="flag" value="1"/>
320 <member name="_unknown3" type="U16" value="0"/>
321 <member name="locale" type="locale" value='"en_US"'/>
322 <member name="clientver" type="DATA" value='"1.4.2_03:Swing app:Sun Microsystems Inc."'/>
323 The "default" is the java vm version, not exactly he client version. However,
324 you should always send a text like "Jonathan's C client version 0.6" or somesuch,
325 so the server can, if necessary, block broken clients or client versions.
326 </message>
327
328 <message type="0007" name="req_userinfo" src="client">
329 <p>Request info about a certain user. Possible reply: <ref reply="userinfo"/></p>
330 <member name="name" type="username"/>
331 </message>
332
333 <message type="0007" name="update_userinfo" src="client">
334 <p>Update user info. Message structure is very similar
335 to <ref ref="userinfo"/>.</p>
336 <member name="setpass" type="flag"/>
337 Should the password be updated?
338 <member name="password" type="password" value="0"/>
339 <member name="realname" type="realname"/>
340 <member name="email" type="email"/>
341 <member name="info" type="userinfo"/>
342 <member name="homepage" type="url"/>
343 <member name="_unused" type="U64" value="0"/>
344 <member name="_unused" type="U64" value="0"/>
345 </message>
346
347 <message type="0013" name="msg_chat" src="client">
348 <p>This message is sent to initiate or continue a private chat with
349 a user. You'll always receive a copy of what you have sent back
350 from the server (as usual).</p>
351
352 <member name="name" type="username"/>
353 Name of sender ("yourself").
354 <member name="name2" type="username"/>
355 Name of recipient.
356 <member name="message" type="STRING"/>
357 The message.
358 </message>
359
360 <message type="0014" name="req_stats" src="client">
361 <p>Request server statistics. Replied with <ref reply="stats"/></p>
362 </message>
363
364 <message type="0016" name="idle_reset" src="client">
365 <p>Send in response to <ref reply="idle_warn"/> to keep the server from disconnecting.</p>
366 </message>
367
368 <message type="001d" name="ping" src="client">
369 <p>Wild guess, I send it in <ref ref="idle_warn"/>.</p>
370 </message>
371
372 <message type="001e" name="req_usergraph" src="client">
373 <p>Request user graph data, replied with <ref reply="usergraph"/>.</p>
374 <member name="name" type="username"/>
375 </message>
376
377 <message type="001f" name="fetch_memos" src="client">
378 <p>Unclear. Fetch all outstanding memos? Replied with <ref reply="memo"/></p>
379 </message>
380
381 <message type="0021" name="req_pic" src="client">
382 <p>Request a user picture from the server. Results in a <ref reply="userpic"/>
383 or a timeout.</p>
384 <member name="name" type="username"/>
385 </message>
386
387 <message type="0021" name="upload_pic" src="client">
388 Same code as pic_req, but with an additional data section that
389 must contain a JPEG image that is &lt;=7KB. It must have 141×200 pixels.
390 <member name="name" type="username"/>
391 <member name="data" type="DATA"/>
392 </message>
393
394 <message type="0023" name="send_memo" src="client">
395 <member name="name" type="username"/>
396 <member name="msg" type="STRING"/>
397 </message>
398
399 <message type="0100" name="gnotice" src="client">
400 <p>Send a global message. Maybe. Never tried, for obvious reasons :/. Results
401 in a <ref reply="gnotice"/> sent to all users.</p>
402 <member name="notice" type="STRING"/>
403 </message>
404
405 <message type="0200" name="notify_add" src="client">
406
407 <p>Probably setting a notifier on a username, to get informed about
408 changes using <ref reply="notify_upd"/> messages. sending your own
409 username gives you a disconnect, so don't do that at home, kids!</p>
410
411 <member name="name" type="username"/>
412 </message>
413
414 <message type="0201" name="notify_del" src="client">
415
416 <p>Probably remove the notifier again.</p>
417
418 <member name="name" type="username"/>
419 </message>
420
421 <message type="0318" name="list_rooms" src="client">
422 <p>List the rooms in a specific group/category. Results in a <ref reply="upd_rooms"/> message.</p>
423 <member name="group" type="U8"/>
424 </message>
425
426 <message type="031a" name="new_room" src="client">
427 Create a new room. Not verified.
428 <member name="name" type="username"/>
429 <member name="i1" type="U32" value="0"/>
430 <member name="b1" type="U8" value="0"/>
431 <member name="b2" type="U8" value="255"/>
432 <member name="b3" type="U8" value="255"/>
433 <member name="group" type="U8" value="1"/>
434 <member name="name" type="ZSTRING"/>
435 <member name="description" type="ZSTRING"/>
436 <member name="flags" type="U8"/>
437 See ROOMFLAGs
438 </message>
439
440 <message type="031b" name="req_upd_rooms" src="client">
441 <p>Request a rooms update message for the given room.</p>
442 <member name="channel" type="U16"/>
443 </message>
444
445 <message type="0413" name="req_game_record" src="client">
446 <p>Requests part of the users game record to be sent. Results in a <ref reply="game_record"/> or maybe a timeout.</p>
447 <member name="name" type="username"/>
448 <member name="timestamp" type="timestamp"/>
449 If zero, start at the newest games, else only send games
450 before the given timestap.
451 </message>
452
453 <message type="4300" name="join_room" src="client">
454 <p>Joins the given room. <ref reply="join_room"/> messages for yourself
455 and all users in that room, as well as the initial gamelist, are
456 send if the room exists. If not, timeout...</p>
457 <member name="channel" type="U16"/>
458 <member name="user" type="user"/>
459 </message>
460
461 <message type="4301" name="msg_room" src="client">
462 Send a message to the room.
463 <member name="channel" type="U16"/>
464 <member name="name" type="username"/>
465 Must be the login-name of the user.
466 <member name="message" type="STRING"/>
467 </message>
468
469 <message type="4302" name="part_room" src="client">
470 Remove yourself (or maybe others as admin) from a room.
471 <member name="channel" type="U16"/>
472 <member name="name" type="username"/>
473 </message>
474
475 <message type="4305" name="new_game" src="client">
476 <p>Unclear. Start a new game.
477 <p>Clone: 00000: 20202020 20202020 20202020 20203238 28
478 00010: 9d000543 0d000000 00000000 00130201 ...C............
479 00020: 0000ffff ffffffff ffffffff 00000000 ..ÿÿÿÿÿÿÿÿÿÿ....</p>
480 </p>
481
482 <member name="channel" type="U16"/>
483 <p>The room where to start the new game</p>
484 <member name="id" type="U16"/>
485 <member name="gametype" type="U32"/>
486 <p>
487 0x200 == global open game list
488 </p>
489 <member name="rules" type="rules"/>
490 <p>When cloning a game, the rules are set up like this:
491 count => 65535, ruleset => 0, time => 4294967295, timesys => 0, interval => 4294967295.
492 Cloning itself seems to be implemented solely in the client (somewhat sane, for a change).
493 </p>
494 <member name="notes" type="STRING"/>
495 </message>
496
497 <message type="430a" name="load_game" src="client">
498 Load an existing game into a room(?)
499 There is no indication that a new game is there except
500 for a upd_observers message with your name in it. Which means
501 you have to watch upd_observers messages that are not for any
502 currently open game and open one. Ugh.
503 <member name="channel" type="U16"/>
504 The room to load the game into.
505 <member name="timestamp" type="timestamp"/>
506 From the game record.
507 <member name="user" type="username"/>
508 <member name="flags" type="U8"/>
509 0 == public, 2 == private
510 </message>
511
512 <message type="430b" name="req_games" src="client">
513 Request to update room game list (send this once per minute to get
514 updated). Results in upd_games messages.
515 <member name="channel" type="U16"/>
516 </message>
517
518 <message type="4319" name="req_desc" src="client">
519 Request room description.
520 <member name="channel" type="U16"/>
521 </message>
522
523 <message type="4400" name="send_challenge" src="client">
524 Unclear.
525 <member name="channel" type="U16"/>
526 <member name="black" type="username"/>
527 <member name="white" type="username"/>
528 More following... TREE or challenge.
529 </message>
530
531 <message type="4403" name="join_game" src="client">
532 Join a game. See join_room.
533 <member name="channel" type="U16"/>
534 <member name="user" type="user"/>
535 </message>
536
537 <message type="4404" name="part_game" src="client">
538 Leave (or kick as admin?) a certain user from a game.
539 <member name="channel" type="U16"/>
540 <member name="name" type="username"/>
541 </message>
542
543 <message type="4405" name="set_tree" src="client">
544 Possibly upload an initial game to an empty room. Not tested.
545
546 <member name="channel" type="U16"/>
547 <member name="tree" type="TREE"/>
548 </message>
549
550 <message type="4406" name="upd_tree" src="client">
551 Upload a partial game tree to the server. This is used to send moves
552 and even in-game comments to the server. For the comments, the
553 server prepends the username and rank.
554
555 <member name="channel" type="U16"/>
556 <member name="tree" type="TREE"/>
557 </message>
558
559 <message type="4408" name="get_tree" src="client">
560 Request the game tree starting at a given node. This is used
561 when the server only sends a partial tree (with end code "more").
562 <member name="channel" type="U16"/>
563 <member name="node" type="U32"/>
564 </message>
565
566 <message type="440c" name="claim_win" src="client">
567 Unclear.
568 <member name="channel" type="U16"/>
569 <member name="_byte" type="U8 "/>
570 Player colour maybe? Unclear.
571 </message>
572
573 <message type="440d" name="add_time" src="client">
574 Not checked.
575
576 <member name="channel" type="U16"/>
577 <member name="time" type="U32"/>
578 <member name="player" type="U8"/>
579 </message>
580
581 <message type="440f" name="grant_undo" src="client">
582 Can be send after a req_undo message was received to grant the undo.
583 <member name="channel" type="U16"/>
584 </message>
585
586 <message type="4410" name="resign_game" src="client">
587 Resign the game.
588 <member name="channel" type="U16"/>
589 <member name="player" type="U8"/>
590 </message>
591
592 <message type="441a" name="set_teacher" src="client">
593 Change the teacher to somebody else (or possibly yourself == take it).
594 <member name="channel" type="U16"/>
595 <member name="name" type="username"/>
596 </message>
597
598 <message type="4422" name="allow_user" src="client">
599 Unclear. Maybe allow users to talk? No idea, really.
600
601 <member name="channel" type="U16"/>
602 <member name="othername" type="username"/>
603 <member name="name" type="username"/>; # gives user access to the game (to what? ;)
604 </message>
605
606 <message type="4423" name="set_privacy" src="client">
607 Probably sets the "quiet" flag. Not checked.
608 <member name="channel" type="U16"/>
609 <member name="private" type="U8"/>
610 </message>
611
612 <message type="4429" name="reject_challenge" src="client">
613 Reject a challenge from a given user. Not checked.
614
615 <member name="channel" type="U16"/>
616 <member name="name" type="username"/>
617 </message>
618
619 <message type="442e" name="save_game" src="client">
620 <p>Is send when a game is closed and should be saved on the gamerecord.</p>
621
622 <member name="channel" type="U16"/>
623 </message>
624
625 <message type="4433" name="req_result" src="client">
626 I forgot.
627
628 <member name="channel" type="U16"/>
629 </message>
630
631 <message type="4434" name="set_quiet" src="client">
632 <p>Sets (or clears) the quiet flag on a game.</p>
633 <member name="channel" type="U16"/>
634 <member name="quiet" type="U8"/>
635 </message>
636
637 <message type="4436" name="msg_game" src="client">
638 <member name="channel" type="U16"/>
639 <member name="message" type="STRING"/>
640 </message>
641
642 <message type="ffff" name="quit" src="client">
643 <p>Sent by the client just before it logs out.</p>
644 </message>
645
646 <h2>Structs mainly used in messages send by the server</h2>
647
648 <struct name="challenge_defaults">
649 Send soon after log-in to set the defaults for game challenges.
650 <member name="gametype" type="U32"/>
651 <member name="size" type="U32"/>
652 <member name="timesys" type="U32"/>
653 <member name="time" type="U32"/>
654 <member name="byo_time" type="U32"/>
655 <member name="byo_periods" type="U32"/>
656 <member name="can_time" type="U32"/>
657 <member name="can_stones" type="U32"/>
658 </struct>
659
660 <struct name="challenge" class="KGS::Challenge">
661 A challenge.
662
663 <member name="user1" type="user"/>
664 <member name="user2" type="user"/>
665 <member name="gametype" type="U32"/>
666 <member name="rules" type="rules"/>
667 Maybe the rules" are in TREE format. I forgot.
668 </struct>
669
670 <struct name="game" class="KGS::Game">
671 Basic information about a game. Used in rooms for the gamelist and
672 in games to detect when a game is saved, changed type (e.g. R => D)
673 etc.
674
675 <member name="channel" type="U16"/>
676 <member name="type" type="U8"/>
677 <member name="user1" type="user"/>
678 White
679 <member name="user2" type="user"/>
680 Black
681 <member name="user3" type="user"/>
682 Owner
683 <member name="size" type="U8"/>
684 <member name="handicap" type="I8"/>
685 &lt; 0 not fully setup
686 <member name="komi" type="komi16"/>
687 <member name="moves" type="I16"/>
688 This field reflects either the movenum or the score, sorry, not even guards help, as
689 the flags to determine that are _after_ the field. Arg. Divide by two to get the actual
690 score (NOT score16!) (arg²).
691 <member name="flags" type="U16"/>
692 <member name="observers" type="U32"/>
693 <member name="saved" type="flag"/>
694 <member name="notes" type="STRING" guard-member="handicap" guard-cond="&lt; 0"/>
695 </struct>
696
697 <struct name="room_obs">
698 Obsolete.
699
700 <member name="name" type="roomname"/>
701 <member name="channel" type="U16"/>
702 <member name="flags" type="U32"/>
703 <member name="users" type="U32"/>
704 </struct>
705
706 <struct name="room" class="KGS::Room">
707 <member name="channel" type="U16"/>
708 <member name="flags" type="U8"/>
709 <member name="group" type="U8"/>
710 <member name="users" type="U16"/>
711 <member name="games" type="U16"/>
712 <member name="name" type="STRING"/>
713 </struct>
714
715 <struct name="scorevalues" class="KGS::Score">
716 <member name="score" type="score32"/>
717 <member name="territory" type="U32"/>
718 <member name="captures" type="U32"/>
719 <member name="i3" type="U32"/>
720 <member name="f2" type="U32"/>
721 <member name="komi" type="komi324"/>
722 <member name="i4" type="U32"/>
723 Apparently the i3, f2, i4 are zero.
724 </struct>
725
726 <struct name="game_record" class="KGS::GameRecord">
727 <p>A single game record entry, as seen in <ref ref="userinfo"/>.</p>
728
729 <member name="timestamp" type="timestamp"/>
730 Time this game was played.
731 <member name="flags1" type="U8"/>
732 <p>0:3 == handicap, 4:7 == gametype:0:4</p>
733 <member name="user1" type="user"/>
734 White, flags contain low 8 bits of revision (bits 16-23).
735 <member name="user2" type="user"/>
736 Black, flags contain high 8 bits of revision (bits 16-23).
737 <member name="user3" type="user"/>
738
739 <p><p>Owner (or empty)</p>
740
741 <p>The bits 16-24 of user1.flags and user2.flags give the high and
742 low bits of a revision number in case there are multiple similar
743 games.</p></p>
744
745 <member name="flags2" type="U16"/>
746 <p>0:11 == komi / 2, 12:14 == high 3 bits of gametype, 15: == sign bit</p>
747 <member name="score" type="score16"/>
748 <member name="flags3" type="U8"/>
749
750 <p>0:5 == boardsize; 6: == no idea; 7: == inplay?</p>
751
752 </struct>
753
754 <h2>Server-generated messages</h2>
755
756 <message type="0001" name="login" src="server">
757 <member name="message" type="CONSTANT" value='login successful'/>
758 <member name="success" type="CONSTANT" value="1"/>
759 </message>
760
761 <message type="0002" name="login" src="server">
762 <member name="message" type="CONSTANT" value='login successful: client version is outdated.'/>
763 <member name="success" type="CONSTANT" value="1"/>
764 </message>
765
766 <message type="0003" name="login" src="server">
767 <member name="message" type="CONSTANT" value='login failed: client version out of date'/>
768 ** maybe more following? **
769 </message>
770
771 <message type="0004" name="login" src="server">
772 <member name="message" type="CONSTANT" value='login failed: wrong password'/>
773 ** maybe more following? **
774 </message>
775
776 <message type="0005" name="login" src="server">
777 <member name="message" type="CONSTANT" value='login failed: specified user does not exist'/>
778 </message>
779
780 <message type="0006" name="login" src="server">
781 <member name="message" type="CONSTANT" value='login failed: registered user of same name exists'/>
782 </message>
783
784 <message type="0008" name="userinfo" src="server">
785 User info.
786 <member name="_unused0" type="flag"/>
787 <member name="user" type="user"/>
788 <member name="_unused1" type="U64"/>
789 <member name="realname" type="realname"/>
790 <member name="email" type="email"/>
791 <member name="info" type="userinfo"/>
792 <member name="homepage" type="url"/>
793 <member name="regdate" type="timestamp"/>
794 When the user registered (0 == never registered).
795 <member name="lastlogin" type="timestamp"/>
796 When the user logged in for the last time.
797 <!-- maybe more? -->
798 </message>
799
800 <message type="0009" name="upd_userinfo_result" src="server">
801 <member name="name" type="username"/>
802 <member name="message" type="CONSTANT" value='Thanks for registering.'/>
803 </message>
804
805 <message type="000a" name="upd_userinfo_result" src="server">
806 <member name="name" type="username"/>
807 <member name="message" type="CONSTANT" value='The user &quot;%s&quot; has been successfully updated.'/>
808 </message>
809
810 <message type="000b" name="upd_userinfo_result" src="server">
811 <member name="name" type="username"/>
812 <member name="message" type="CONSTANT" value='There is no user &quot;%s&quot;. Update failed.'/>
813 </message>
814
815 <message type="0012" name="userinfo_failed" src="server">
816 <p>Sent when no userinfo for the requested user could be found(?)</p>
817 <member name="name" type="username"/>
818 </message>
819
820 <message type="0013" name="msg_chat" src="server">
821 <member name="name" type="username"/>
822 Name of sender (either yourself (echo) or other)
823 <member name="name2" type="username"/>
824 Name of recipient.
825 <member name="message" type="STRING"/>
826 </message>
827
828 <message type="0015" name="stats" src="server">
829 <member name="ver_major" type="U16"/>
830 <member name="ver_minor" type="U16"/>
831 <member name="ver_micro" type="U16"/>
832 <member name="boot_time" type="timestamp"/>
833 <member name="users_cur" type="U32"/>
834 <member name="users_max" type="U32"/>
835 <member name="users_lim" type="U32"/>
836 <member name="accts_cur" type="U32"/>
837 <member name="accts_max" type="U32"/>
838 <member name="unknown1" type="U32"/>
839 <member name="work_max" type="U32"/>
840 <member name="rooms_cur" type="U32"/>
841 <member name="rooms_max" type="U32"/>
842 <member name="rooms_lim" type="U32"/>
843 <member name="games_cur" type="U32"/>
844 <member name="games_max" type="U32"/>
845 <member name="games_lim" type="U32"/>
846 <member name="results_cur" type="U32"/>
847 <member name="results_max" type="U32"/>
848 <member name="unknown2" type="U32"/>
849 <member name="params_cur" type="U32"/>
850 <member name="params_max" type="U32"/>
851 <member name="bytes_in" type="U64"/>
852 <member name="packets_in" type="U64"/>
853 <member name="bytes_out" type="U64"/>
854 <member name="packets_out" type="U64"/>
855 </message>
856
857 <message type="0016" name="idle_warn" src="server">
858 idle warning, autologout soon (10 minutes...)
859 </message>
860
861 <message type="0018" name="login" src="server">
862 <member name="message" type="CONSTANT" value='logged out: another client logged in with your username'/>
863 </message>
864
865 <message type="001c" name="login" src="server">
866 <member name="message" type="CONSTANT" value='logged out: idle for too long'/>
867 </message>
868
869 <message type="0020" name="error" src="server">
870 <member name="message" type="CONSTANT" value='Sorry, you have too many unfinished games. You cannot turn on your rank. Please finish some of your games, then try again.'/>
871 </message>
872
873 <message type="0022" name="login" src="server">
874 I was blocked sooo many times for developing this client that it was
875 easy to figure out. The KGS admins sure need no extra nazi training
876 :(
877 <member name="reason" type="STRING"/>
878 <member name="result" type="CONSTANT" value='user or ip blocked'/>
879 </message>
880
881 <message type="001b" name="timewarning_default" src="server">
882 WILD guess
883 <member name="channel" type="U16"/>
884 <member name="time" type="U16"/>
885 </message>
886
887 <message type="001c" name="idle_err" src="server">
888 autologout
889 </message>
890
891 <message type="001d" name="ping" src="server">
892 Sent by the server regularly, but not answering them
893 isn't valid. Strange form of keepalive?
894 </message>
895
896 <message type="001e" name="usergraph" src="server">
897 User graph data.
898 <member name="name" type="username"/>
899 <member name="data" type="I16" array="yes"/>
900 If empty, no graph is available. The unit seems to
901 be centi-kyu, with 1 dan == 0, 2 dan == 100, 1 kyu == -100.
902 There is probably one entry per day, the newest one last.
903 </message>
904
905 <message type="001f" name="memo" src="server">
906 Unclear. "Leave Message"?
907 6 strings following.
908 <member name="s1" type="ZSTRING"/>
909 <member name="s2" type="ZSTRING"/>
910 <member name="s3" type="ZSTRING"/>
911 <member name="s4" type="ZSTRING"/>
912 <member name="s5" type="ZSTRING"/>
913 <member name="s6" type="ZSTRING"/>
914 </message>
915
916 <message type="0021" name="userpic" src="server">
917 <member name="name" type="username"/>
918 Reply to pic_req, contains an image in jpeg format.
919 <member name="data" type="DATA"/>
920 </message>
921
922 <message type="0100" name="gnotice" src="server">
923 global notice, sent to everybody
924 <member name="notice" type="STRING"/>
925 </message>
926
927 <message type="0202" name="notify_event" src="server">
928 # maybe soe notify? Totally unclear.
929 # loc 0" type="userinfo, flags etc. loc 1 => gameinfo?, loc 2 => game result (more data)
930 <member name="event" type="U32"/>
931 <member name="user" type="user"/>
932 <member name="gamerecord" type="game_record" guard-member="event" guard-cond="== 2"/>
933 <p>Game result record?</p>
934
935 </message>
936
937 <message type="0310" name="priv_room" src="server">
938 "permission denied" when joining a room
939 <member name="name" type="STRING"/>
940 </message>
941
942 <message type="0318" name="upd_rooms" src="server">
943 <member name="rooms" type="room" array="yes"/>
944 </message>
945
946 <message type="0411" name="chal_defaults" src="server">
947 <member name="channel" type="U16"/>
948 <member name="defaults" type="challenge_defaults"/>
949 </message>
950
951 <message type="0412" name="game_error" src="server">
952 Unable to create challenge. The channel is be optional.
953 <member name="message" type="CONSTANT" value='Sorry, you are already playing in one game, so you can&apos;t start playing in another.'/>
954 <member name="channel" type="U16"/>
955 </message>
956
957 <message type="0414" name="game_record" src="server">
958 The users game record.
959 <member name="name" type="username"/>
960 <member name="more" type="flag"/>
961 Wether more games are available (must be requested manually)
962 <member name="games" type="game_record" array="yes"/>
963 </message>
964
965 <message type="0417" name="error" src="server">
966 <member name="message" type="CONSTANT" value='Sorry, your opponent is currently not logged in, so you can&apos;t resume this game.'/>
967 </message>
968
969 <message type="0418" name="error" src="server">
970 <member name="message" type="CONSTANT" value='Sorry, your opponent is already playing in a game, so you cannot continue this one.'/>
971 </message>
972
973 <message type="0419" name="error" src="server">
974 <member name="message" type="CONSTANT" value='Sorry, the server is out of boards! Please wait a few minutes and try to start a game again.'/>
975 </message>
976
977 <message type="041c" name="upd_game2" src="server">
978 Unclear.
979 <member name="channel_junk" type="U16"/>
980 <member name="game" type="game"/>
981 </message>
982
983 <message type="041f" name="error" src="server">
984 <member name="message" type="CONSTANT" value='Sorry, the game you tried to load was not correctly saved...probably caused by the server crashing. It cannot be recovered.'/>
985 </message>
986
987 <message type="0420" name="error" src="server">
988 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; has left the game you are starting before you could challenge them. You will have to play against somebody else.'/>
989 </message>
990
991 <message type="0421" name="error" src="server">
992 <member name="message" type="CONSTANT" value='Sorry, this game is a private lesson. You will not be allowed to observe it.'/>
993 </message>
994
995 <!-- added recently -->
996 <message type="043a" name="add_global_challenge" src="server">
997 <p>
998 Adds or updates a global challenge (open game list).
999 </p>
1000 <member name="channel" type="U16"/>
1001 <p>
1002 The room this game is associated with.
1003 </p>
1004 <member name="game" type="game"/>
1005 </message>
1006
1007 <h3>Room messages</h3>
1008
1009 <p>Not all room messages are for rooms only, and rooms need to parse
1010 not only these messages. Orthogonality, what for?</p>
1011
1012 <message type="4300" name="join_room" src="server">
1013 <member name="channel" type="U16"/>
1014 <member name="users" type="user" array="yes"/>
1015 </message>
1016
1017 <message type="4301" name="msg_room" src="server">
1018 <member name="channel" type="U16"/>
1019 <member name="name" type="username"/>
1020 <member name="message" type="STRING"/>
1021 </message>
1022
1023 <message type="4302" name="part_room" src="server">
1024 <member name="channel" type="U16"/>
1025 <member name="user" type="user"/>
1026 </message>
1027
1028 <message type="4303" name="del_room" src="server">
1029 <member name="channel" type="U16"/>
1030 </message>
1031
1032 <message type="4304" name="upd_games" src="server">
1033 <member name="channel" type="U16"/>
1034 <member name="games" type="game" array="yes"/>
1035 </message>
1036
1037 <message type="4319" name="desc_room" src="server">
1038 <member name="channel" type="U16"/>
1039 <member name="owner" type="username"/>
1040 <member name="description" type="STRING"/>
1041 </message>
1042
1043 <h3>Game messages</h3>
1044
1045 <message type="4400" name="upd_challenge" src="server">
1046 Unclear.
1047 <member name="channel" type="U16"/>
1048 <member name="challenge" type="challenge"/>
1049 </message>
1050
1051 <message type="4401" name="upd_game" src="server">
1052 <member name="channel" type="U16"/>
1053 <member name="game" type="game"/>
1054 </message>
1055
1056 <message type="4402" name="del_game" src="server">
1057 <member name="channel" type="U16"/>
1058 </message>
1059
1060 <message type="4403" name="upd_observers" src="server">
1061 <member name="channel" type="U16"/>
1062 <member name="users" type="user" array="yes"/>
1063 </message>
1064
1065 <message type="4404" name="del_observer" src="server">
1066 <member name="channel" type="U16"/>
1067 <member name="name" type="username"/>
1068 </message>
1069
1070 <message type="4405" name="set_tree" src="server">
1071 <member name="channel" type="U16"/>
1072 <member name="tree" type="TREE"/>
1073 </message>
1074
1075 <message type="4406" name="upd_tree" src="server">
1076 <member name="channel" type="U16"/>
1077 <member name="tree" type="TREE"/>
1078 </message>
1079
1080 <message type="4409" name="superko" src="server">
1081 Superko-warning.
1082 <member name="channel" type="U16"/>
1083 </message>
1084
1085 <message type="440b" name="final_result" src="server">
1086 <member name="channel" type="U16"/>
1087 <member name="blackscore" type="scorevalues"/>
1088 <member name="whitescore" type="scorevalues"/>
1089 </message>
1090
1091 <message type="440e" name="req_undo" src="server">
1092 <member name="channel" type="U16"/>
1093
1094 </message>
1095
1096 <message type="4410" name="resign_game" src="server">
1097 <member name="channel" type="U16"/>
1098 <member name="player" type="U8"/>
1099 </message>
1100
1101 <message type="4415" name="game_error" src="server">
1102 <member name="channel" type="U16"/>
1103 <member name="message" type="CONSTANT" value='Sorry, this is a lecture game. Only authorized players are allowed to make comments.'/>
1104 </message>
1105
1106 <message type="441a" name="set_teacher" src="server">
1107 <member name="channel" type="U16"/>
1108 <member name="name" type="username"/>
1109 </message>
1110
1111 <message type="441d" name="owner_left" src="server">
1112 <member name="channel" type="U16"/>
1113 <member name="message" type="CONSTANT" value='Sorry, the owner of this game has left. Nobody will be allowed to edit it until the owner returns.'/>
1114 </message>
1115
1116 <message type="441e" name="teacher_left" src="server">
1117 Unclear.
1118 <member name="channel" type="U16"/>
1119 </message>
1120
1121 <message type="4422" name="allow_user_result" src="server">
1122 <member name="message" type="CONSTANT" value='User &quot;%s&quot; will now be allowed full access to your game.'/>
1123 <member name="channel" type="U16"/>
1124 </message>
1125
1126 <message type="4424" name="allow_user_result" src="server">
1127 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; is a guest and cannot be allowed full access to your game.'/>
1128 <member name="channel" type="U16"/>
1129 </message>
1130
1131 <message type="4425" name="allow_user_result" src="server">
1132 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; does not seem to exist and cannot be allowed into your game.'/>
1133 <member name="channel" type="U16"/>
1134 </message>
1135
1136 <message type="4428" name="add_tree" src="server">
1137 <p>See <ref ref="set_tree"/>. In addition, flags the tree as being
1138 uploaded completely.</p>
1139 <member name="channel" type="U16"/>
1140 <member name="tree" type="TREE"/>
1141 </message>
1142
1143 <message type="4429" name="reject_challenge" src="server">
1144 Reject a challenge by a given user. Not checked.
1145
1146 <member name="channel" type="U16"/>
1147 <member name="name" type="username"/>
1148 </message>
1149
1150 <message type="442f" name="new_game" src="server">
1151 <p>Notifies the client that a new game has been created. This
1152 message is sent long *after* upd_games and upd_observers etc.
1153 have been received. *sigh*</p>
1154
1155 <member name="channel" type="U16"/>
1156 <p>The newly created game.</p>
1157 <member name="id" type="U16"/>
1158 <p>The ID sent to the server in new_game.</p>
1159 </message>
1160
1161 <message type="4433" name="req_result" src="server">
1162 Unclear.
1163 <member name="channel" type="U16"/>
1164 # # recv_result(?)
1165 </message>
1166
1167 <message type="4434" name="set_quiet" src="server">
1168 <p>Sets (or clears) the quiet flag on a game.</p>
1169 <member name="channel" type="U16"/>
1170 <member name="quiet" type="U8"/>
1171 </message>
1172
1173 <message type="443b" name="del_global_challenge" src="server">
1174 <p>
1175 Remove a game from the global challenge list (open game list).
1176 </p>
1177 <member name="channel" type="U16"/>
1178 <p>The game id to remove.</p>
1179 <member name="game" type="U16"/>
1180 <p>Probably the same. I suggest to use this id for no good reason.</p>
1181 </message>
1182 </body>
1183 </html>
1184