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Revision: 1.58
Committed: Sat May 29 02:01:43 2004 UTC (20 years ago) by pcg
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# 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: 1.57 $</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 <type name="clientid" type="U16" multiplier="1"/>
198
199 <p>An id chosen by the client, usually starting at one, to identify
200 some handshakes initiated by the client, such as new games or memos.</p>
201
202 <h2>Enumeration and set types used in the protocol.</h2>
203
204 <enum name="GAMETYPE">
205 <member name="DEMONSTRATION" value="0"/>
206 <member name="EDITING" value="1"/>
207 <member name="TEACHING" value="2"/>
208 <member name="SIMUL" value="3"/>
209 <member name="FREE" value="4"/>
210 <member name="RATED" value="5"/>
211 <member name="PRIVATE" value="128"/>
212 <p>PRIVATE is ored onto DEMONSTRATION or TEACHING</p>
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="6"/>
316 <member name="ver_micro" type="U32" value="1"/>
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="0021" name="req_pic" src="client">
378 <p>Request a user picture from the server. Results in a <ref reply="userpic"/>
379 or a timeout.</p>
380 <member name="name" type="username"/>
381 </message>
382
383 <message type="0021" name="upload_pic" src="client">
384 Same code as pic_req, but with an additional data section that
385 must contain a JPEG image that is &lt;=7KB. It must have 141×200 pixels.
386 <member name="name" type="username"/>
387 <member name="data" type="DATA"/>
388 </message>
389
390 <message type="0023" name="send_memo" src="client">
391 <member name="name" type="username"/>
392 <member name="cid" type="clientid"/>
393 <p>A boolean, probably. Always true for me.</p>
394 <member name="msg" type="STRING"/>
395 </message>
396
397 <message type="0024" name="delete_memos" src="client">
398 <p>Unconditionally deletes all memos.</p>
399 </message>
400
401 <message type="0100" name="gnotice" src="client">
402 <p>Send a global message. Maybe. Never tried, for obvious reasons :/. Results
403 in a <ref reply="gnotice"/> sent to all users.</p>
404 <member name="notice" type="STRING"/>
405 </message>
406
407 <message type="0200" name="notify_add" src="client">
408
409 <p>Probably setting a notifier on a username, to get informed about
410 changes using <ref reply="notify_upd"/> messages. sending your own
411 username gives you a disconnect, so don't do that at home, kids!</p>
412
413 <member name="name" type="username"/>
414 </message>
415
416 <message type="0201" name="notify_del" src="client">
417
418 <p>Probably remove the notifier again.</p>
419
420 <member name="name" type="username"/>
421 </message>
422
423 <message type="0318" name="list_rooms" src="client">
424 <p>List the rooms in a specific group/category. Results in a <ref reply="upd_rooms"/> message.</p>
425 <member name="group" type="U8"/>
426 </message>
427
428 <message type="031a" name="new_room" src="client">
429 Create a new room. Not verified.
430 <member name="name" type="username"/>
431 <member name="i1" type="U32" value="0"/>
432 <member name="b1" type="U8" value="0"/>
433 <member name="b2" type="U8" value="255"/>
434 <member name="b3" type="U8" value="255"/>
435 <member name="group" type="U8" value="1"/>
436 <member name="name" type="ZSTRING"/>
437 <member name="description" type="ZSTRING"/>
438 <member name="flags" type="U8"/>
439 See ROOMFLAGs
440 </message>
441
442 <message type="031b" name="req_upd_rooms" src="client">
443 <p>Request a rooms update message for the given room.</p>
444 <member name="channel" type="U16"/>
445 </message>
446
447 <message type="0413" name="req_game_record" src="client">
448 <p>Requests part of the users game record to be sent. Results in a <ref reply="game_record"/> or maybe a timeout.</p>
449 <member name="name" type="username"/>
450 <member name="timestamp" type="timestamp"/>
451 If zero, start at the newest games, else only send games
452 before the given timestap.
453 </message>
454
455 <message type="4300" name="join_room" src="client">
456 <p>Joins the given room. <ref reply="join_room"/> messages for yourself
457 and all users in that room, as well as the initial gamelist, are
458 send if the room exists. If not, timeout...</p>
459 <member name="channel" type="U16"/>
460 <member name="user" type="user"/>
461 </message>
462
463 <message type="4301" name="msg_room" src="client">
464 Send a message to the room.
465 <member name="channel" type="U16"/>
466 <member name="name" type="username"/>
467 Must be the login-name of the user.
468 <member name="message" type="STRING"/>
469 </message>
470
471 <message type="4302" name="part_room" src="client">
472 Remove yourself (or maybe others as admin) from a room.
473 <member name="channel" type="U16"/>
474 <member name="name" type="username"/>
475 </message>
476
477 <message type="4305" name="new_game" src="client">
478 <p>Unclear. Start a new game.
479 <p>Clone: 00000: 20202020 20202020 20202020 20203238 28
480 00010: 9d000543 0d000000 00000000 00130201 ...C............
481 00020: 0000ffff ffffffff ffffffff 00000000 ..ÿÿÿÿÿÿÿÿÿÿ....</p>
482 </p>
483
484 <member name="channel" type="U16"/>
485 <p>The room where to start the new game</p>
486 <member name="cid" type="clientid"/>
487 <member name="type" type="U8"/>
488 <p>
489 GAMETYPE_UPLOAD probably not allowed. GAMETYPE_PRIVATE
490 only allowd together with GAMETYPE_TEACHING, GAMETYPE_DEMONSTRATION.
491 </p>
492 <member name="flags" type="U8"/>
493 <p>
494 0x2 == global open game list
495 </p>
496 <member name="rules" type="rules"/>
497 <p>When cloning a game, the rules are set up like this:
498 count => 65535, ruleset => 0, time => 4294967295, timesys => 0, interval => 4294967295.
499 Cloning itself seems to be implemented solely in the client (somewhat sane, for a change).
500 </p>
501 <member name="notes" type="STRING"/>
502 </message>
503
504 <message type="430a" name="load_game" src="client">
505 Load an existing game into a room(?)
506 There is no indication that a new game is there except
507 for a upd_observers message with your name in it. Which means
508 you have to watch upd_observers messages that are not for any
509 currently open game and open one. Ugh.
510 <member name="channel" type="U16"/>
511 The room to load the game into.
512 <member name="timestamp" type="timestamp"/>
513 From the game record.
514 <member name="user" type="username"/>
515 <member name="flags" type="U8"/>
516 0 == public, 2 == private
517 </message>
518
519 <message type="430b" name="req_games" src="client">
520 Request to update room game list (send this once per minute to get
521 updated). Results in upd_games messages.
522 <member name="channel" type="U16"/>
523 </message>
524
525 <message type="4319" name="req_desc" src="client">
526 Request room description.
527 <member name="channel" type="U16"/>
528 </message>
529
530 <message type="4400" name="send_challenge" src="client">
531 Unclear.
532 <member name="channel" type="U16"/>
533 <member name="black" type="username"/>
534 <member name="white" type="username"/>
535 More following... TREE or challenge.
536 </message>
537
538 <message type="4403" name="join_game" src="client">
539 Join a game. See join_room.
540 <member name="channel" type="U16"/>
541 <member name="user" type="user"/>
542 </message>
543
544 <message type="4404" name="part_game" src="client">
545 Leave (or kick as admin?) a certain user from a game.
546 <member name="channel" type="U16"/>
547 <member name="name" type="username"/>
548 </message>
549
550 <message type="4405" name="set_tree" src="client">
551 Possibly upload an initial game to an empty room. Not tested.
552
553 <member name="channel" type="U16"/>
554 <member name="tree" type="TREE"/>
555 </message>
556
557 <message type="4406" name="upd_tree" src="client">
558 Upload a partial game tree to the server. This is used to send moves
559 and even in-game comments to the server. For the comments, the
560 server prepends the username and rank.
561
562 <member name="channel" type="U16"/>
563 <member name="tree" type="TREE"/>
564 </message>
565
566 <message type="4408" name="get_tree" src="client">
567 Request the game tree starting at a given node. This is used
568 when the server only sends a partial tree (with end code "more").
569 <member name="channel" type="U16"/>
570 <member name="node" type="U32"/>
571 </message>
572
573 <message type="440c" name="claim_win" src="client">
574 Unclear.
575 <member name="channel" type="U16"/>
576 <member name="_byte" type="U8 "/>
577 Player colour maybe? Unclear.
578 </message>
579
580 <message type="440d" name="add_time" src="client">
581 Not checked.
582
583 <member name="channel" type="U16"/>
584 <member name="time" type="U32"/>
585 <member name="player" type="U8"/>
586 </message>
587
588 <message type="440f" name="grant_undo" src="client">
589 Can be send after a req_undo message was received to grant the undo.
590 <member name="channel" type="U16"/>
591 </message>
592
593 <message type="4410" name="resign_game" src="client">
594 Resign the game.
595 <member name="channel" type="U16"/>
596 <member name="player" type="U8"/>
597 </message>
598
599 <message type="441a" name="set_teacher" src="client">
600 <p>Change the teacher to somebody else (or possibly yourself == take it). If the
601 name is empty, the game will continue normally.</p>
602 <member name="channel" type="U16"/>
603 <member name="name" type="username"/>
604 </message>
605
606 <message type="4422" name="allow_user" src="client">
607 <p>Unclear. Maybe allow users to talk? No idea, really.</p>
608
609 <member name="channel" type="U16"/>
610 <member name="othername" type="username"/>
611 <member name="name" type="username"/>; # gives user access to the game (to what? ;)
612 </message>
613
614 <message type="4423" name="set_privacy" src="client">
615 Probably sets the "quiet" flag. Not checked.
616 <member name="channel" type="U16"/>
617 <member name="private" type="flag"/>
618 </message>
619
620 <message type="4429" name="reject_challenge" src="client">
621 Reject a challenge from a given user. Not checked.
622
623 <member name="channel" type="U16"/>
624 <member name="name" type="username"/>
625 </message>
626
627 <message type="442e" name="save_game" src="client">
628 <p>Is send when a game is closed and should be saved on the gamerecord.</p>
629
630 <member name="channel" type="U16"/>
631 </message>
632
633 <message type="4433" name="req_result" src="client">
634 I forgot.
635
636 <member name="channel" type="U16"/>
637 </message>
638
639 <message type="4434" name="set_quiet" src="client">
640 <p>Sets (or clears) the quiet flag on a game.</p>
641 <member name="channel" type="U16"/>
642 <member name="quiet" type="flag"/>
643 </message>
644
645 <message type="4436" name="msg_game" src="client">
646 <member name="channel" type="U16"/>
647 <member name="message" type="STRING"/>
648 </message>
649
650 <message type="ffff" name="quit" src="client">
651 <p>Sent by the client just before it logs out.</p>
652 </message>
653
654 <h2>Structs mainly used in messages send by the server</h2>
655
656 <struct name="challenge_defaults">
657 Send soon after log-in to set the defaults for game challenges.
658 <member name="gametype" type="U16"/>
659 <member name="size" type="U32"/>
660 <member name="timesys" type="U32"/>
661 <member name="time" type="U32"/>
662 <member name="byo_time" type="U32"/>
663 <member name="byo_periods" type="U32"/>
664 <member name="can_time" type="U32"/>
665 <member name="can_stones" type="U32"/>
666 <member name="notes" type="STRING"/>
667 </struct>
668
669 <struct name="challenge" class="KGS::Challenge">
670 A challenge.
671
672 <member name="user1" type="user"/>
673 <member name="user2" type="user"/>
674 <member name="gametype" type="U32"/>
675 <member name="rules" type="rules"/>
676 </struct>
677
678 <struct name="game" class="KGS::Game">
679 Basic information about a game. Used in rooms for the gamelist and
680 in games to detect when a game is saved, changed type (e.g. R => D)
681 etc.
682
683 <member name="channel" type="U16"/>
684 <member name="type" type="U8"/>
685 <member name="user1" type="user"/>
686 White
687 <member name="user2" type="user"/>
688 Black
689 <member name="user3" type="user"/>
690 Owner
691 <member name="size" type="U8"/>
692 <member name="handicap" type="I8"/>
693 &lt; 0 not fully setup
694 <member name="komi" type="komi16"/>
695 <member name="moves" type="I16"/>
696 This field reflects either the movenum or the score, sorry, not even guards help, as
697 the flags to determine that are _after_ the field. Arg. Divide by two to get the actual
698 score (NOT score16!) (arg²).
699 <member name="flags" type="U16"/>
700 <member name="observers" type="U32"/>
701 <member name="saved" type="flag"/>
702 <member name="notes" type="STRING" guard-member="handicap" guard-cond="&lt; 0"/>
703 </struct>
704
705 <struct name="room_obs">
706 Obsolete.
707
708 <member name="name" type="roomname"/>
709 <member name="channel" type="U16"/>
710 <member name="flags" type="U32"/>
711 <member name="users" type="U32"/>
712 </struct>
713
714 <struct name="room" class="KGS::Room">
715 <member name="channel" type="U16"/>
716 <member name="flags" type="U8"/>
717 <member name="group" type="U8"/>
718 <member name="users" type="U16"/>
719 <member name="games" type="U16"/>
720 <member name="name" type="STRING"/>
721 </struct>
722
723 <struct name="scorevalues" class="KGS::Score">
724 <member name="score" type="score32"/>
725 <member name="territory" type="U32"/>
726 <member name="captures" type="U32"/>
727 <member name="i3" type="U32"/>
728 <member name="f2" type="U32"/>
729 <member name="komi" type="komi324"/>
730 <member name="i4" type="U32"/>
731 Apparently the i3, f2, i4 are zero.
732 </struct>
733
734 <struct name="game_record" class="KGS::GameRecord">
735 <p>A single game record entry, as seen in <ref ref="userinfo"/>.</p>
736
737 <member name="timestamp" type="timestamp"/>
738 Time this game was played.
739 <member name="flags1" type="U8"/>
740 <p>0:3 == handicap, 4:7 == gametype:0:4</p>
741 <member name="user1" type="user"/>
742 White, flags contain low 8 bits of revision (bits 16-23).
743 <member name="user2" type="user"/>
744 Black, flags contain high 8 bits of revision (bits 16-23).
745 <member name="user3" type="user"/>
746
747 <p><p>Owner (or empty)</p>
748
749 <p>The bits 16-24 of user1.flags and user2.flags give the high and
750 low bits of a revision number in case there are multiple similar
751 games.</p></p>
752
753 <member name="flags2" type="U16"/>
754 <p>0:11 == komi / 2, 12:14 == high 3 bits of gametype, 15: == sign bit</p>
755 <member name="score" type="score16"/>
756 <member name="flags3" type="U8"/>
757
758 <p>0:5 == boardsize; 6: == no idea; 7: == inplay?</p>
759
760 </struct>
761
762 <h2>Server-generated messages</h2>
763
764 <message type="0001" name="login" src="server">
765 <member name="message" type="CONSTANT" value='login successful'/>
766 <member name="success" type="CONSTANT" value="1"/>
767 </message>
768
769 <message type="0002" name="login" src="server">
770 <member name="message" type="CONSTANT" value='login successful: client version is outdated.'/>
771 <member name="success" type="CONSTANT" value="1"/>
772 </message>
773
774 <message type="0003" name="login" src="server">
775 <member name="message" type="CONSTANT" value='login failed: client version out of date'/>
776 ** maybe more following? **
777 </message>
778
779 <message type="0004" name="login" src="server">
780 <member name="message" type="CONSTANT" value='login failed: wrong password'/>
781 ** maybe more following? **
782 </message>
783
784 <message type="0005" name="login" src="server">
785 <member name="message" type="CONSTANT" value='login failed: specified user does not exist'/>
786 </message>
787
788 <message type="0006" name="login" src="server">
789 <member name="message" type="CONSTANT" value='login failed: user of same name logged in'/>
790 </message>
791
792 <message type="0008" name="userinfo" src="server">
793 User info.
794 <member name="_unused0" type="flag"/>
795 <member name="user" type="user"/>
796 <member name="_unused1" type="U64"/>
797 <member name="realname" type="realname"/>
798 <member name="email" type="email"/>
799 <member name="info" type="userinfo"/>
800 <member name="homepage" type="url"/>
801 <member name="regdate" type="timestamp"/>
802 When the user registered (0 == never registered).
803 <member name="lastlogin" type="timestamp"/>
804 When the user logged in for the last time.
805 <!-- maybe more? -->
806 </message>
807
808 <message type="0009" name="upd_userinfo_result" src="server">
809 <member name="name" type="username"/>
810 <member name="message" type="CONSTANT" value='Thanks for registering.'/>
811 </message>
812
813 <message type="000a" name="upd_userinfo_result" src="server">
814 <member name="name" type="username"/>
815 <member name="message" type="CONSTANT" value='The user &quot;%s&quot; has been successfully updated.'/>
816 </message>
817
818 <message type="000b" name="upd_userinfo_result" src="server">
819 <member name="name" type="username"/>
820 <member name="message" type="CONSTANT" value='There is no user &quot;%s&quot;. Update failed.'/>
821 </message>
822
823 <message type="0012" name="userinfo_failed" src="server">
824 <p>Sent when no userinfo for the requested user could be found(?)</p>
825 <member name="name" type="username"/>
826 </message>
827
828 <message type="0013" name="msg_chat" src="server">
829 <member name="name" type="username"/>
830 Name of sender (either yourself (echo) or other)
831 <member name="name2" type="username"/>
832 Name of recipient.
833 <member name="message" type="STRING"/>
834 </message>
835
836 <message type="0015" name="stats" src="server">
837 <member name="ver_major" type="U16"/>
838 <member name="ver_minor" type="U16"/>
839 <member name="ver_micro" type="U16"/>
840 <member name="boot_time" type="timestamp"/>
841 <member name="users_cur" type="U32"/>
842 <member name="users_max" type="U32"/>
843 <member name="users_lim" type="U32"/>
844 <member name="accts_cur" type="U32"/>
845 <member name="accts_max" type="U32"/>
846 <member name="unknown1" type="U32"/>
847 <member name="work_max" type="U32"/>
848 <member name="rooms_cur" type="U32"/>
849 <member name="rooms_max" type="U32"/>
850 <member name="rooms_lim" type="U32"/>
851 <member name="games_cur" type="U32"/>
852 <member name="games_max" type="U32"/>
853 <member name="games_lim" type="U32"/>
854 <member name="results_cur" type="U32"/>
855 <member name="results_max" type="U32"/>
856 <member name="unknown2" type="U32"/>
857 <member name="params_cur" type="U32"/>
858 <member name="params_max" type="U32"/>
859 <member name="bytes_in" type="U64"/>
860 <member name="packets_in" type="U64"/>
861 <member name="bytes_out" type="U64"/>
862 <member name="packets_out" type="U64"/>
863 </message>
864
865 <message type="0016" name="idle_warn" src="server">
866 idle warning, autologout soon (10 minutes...)
867 </message>
868
869 <message type="0018" name="login" src="server">
870 <member name="message" type="CONSTANT" value='logged out: another client logged in with your username'/>
871 </message>
872
873 <message type="001c" name="login" src="server">
874 <member name="message" type="CONSTANT" value='logged out: idle for too long'/>
875 </message>
876
877 <message type="0020" name="error" src="server">
878 <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.'/>
879 </message>
880
881 <message type="0022" name="login" src="server">
882 I was blocked sooo many times for developing this client that it was
883 easy to figure out. The KGS admins sure need no extra nazi training
884 :(
885 <member name="reason" type="STRING"/>
886 <member name="result" type="CONSTANT" value='user or ip blocked'/>
887 </message>
888
889 <message type="001b" name="timewarning_default" src="server">
890 WILD guess
891 <member name="channel" type="U16"/>
892 <member name="time" type="U16"/>
893 </message>
894
895 <message type="001c" name="idle_err" src="server">
896 autologout
897 </message>
898
899 <message type="001d" name="ping" src="server">
900 Sent by the server regularly, but not answering them
901 isn't valid. Strange form of keepalive?
902 </message>
903
904 <message type="001e" name="usergraph" src="server">
905 User graph data.
906 <member name="name" type="username"/>
907 <member name="data" type="I16" array="yes"/>
908 If empty, no graph is available. The unit seems to
909 be centi-kyu, with 1 dan == 0, 2 dan == 100, 1 kyu == -100.
910 There is probably one entry per day, the newest one last.
911 </message>
912
913 <message type="0021" name="userpic" src="server">
914 <member name="name" type="username"/>
915 Reply to pic_req, contains an image in jpeg format.
916 <member name="data" type="DATA"/>
917 </message>
918
919 <message type="0025" name="memo_error" src="server">
920 <p>Account unknown.</p>
921 <member name="name" type="username"/>
922 <member name="cid" type="clientid"/>
923 <member name="message" type="CONSTANT" value='memo send failed: account already exists'/>
924 <member name="subtype" type="CONSTANT" value='25'/>
925 </message>
926
927 <message type="0026" name="memo_error" src="server">
928 <p>Just a guess.</p>
929 <member name="name" type="username"/>
930 <member name="cid" type="clientid"/>
931 <member name="message" type="CONSTANT" value='memo send failed: error 26'/>
932 <member name="subtype" type="CONSTANT" value='26'/>
933 </message>
934
935 <message type="0027" name="memo_error" src="server">
936 <p>User is currently online, please use chat.</p>
937 <member name="name" type="username"/>
938 <member name="cid" type="clientid"/>
939 <member name="message" type="CONSTANT" value='memo send failed: user is online, use chat'/>
940 <member name="subtype" type="CONSTANT" value='27'/>
941 </message>
942
943 <message type="0028" name="memo_error" src="server">
944 <p>Just a guess.</p>
945 <member name="name" type="username"/>
946 <member name="cid" type="clientid"/>
947 <member name="message" type="CONSTANT" value='memo send failed: error 28'/>
948 <member name="subtype" type="CONSTANT" value='28'/>
949 </message>
950
951 <message type="0029" name="memo" src="server">
952 <member name="name" type="username"/>
953 <member name="time" type="timestamp"/>
954 <member name="message" type="ZSTRING"/>
955 </message>
956
957 <message type="002a" name="memo_sent" src="server">
958 <p>The memo was sent successfully</p>
959 <member name="name" type="username"/>
960 <member name="cid" type="clientid"/>
961 </message>
962
963 <message type="0100" name="gnotice" src="server">
964 global notice, sent to everybody
965 <member name="notice" type="STRING"/>
966 </message>
967
968 <message type="0202" name="notify_event" src="server">
969 # maybe soe notify? Totally unclear.
970 # loc 0" type="userinfo, flags etc. loc 1 => gameinfo?, loc 2 => game result (more data)
971 <member name="event" type="U32"/>
972 <member name="user" type="user"/>
973 <member name="gamerecord" type="game_record" guard-member="event" guard-cond="== 2"/>
974 <p>Game result record?</p>
975
976 </message>
977
978 <message type="030c" name="unknown_030c" src="server">
979 <p>Not the slightest... No payload, either.</p>
980 </message>
981
982 <message type="0310" name="priv_room" src="server">
983 "permission denied" when joining a room
984 <member name="name" type="STRING"/>
985 </message>
986
987 <message type="0318" name="upd_rooms" src="server">
988 <member name="rooms" type="room" array="yes"/>
989 </message>
990
991 <message type="0411" name="chal_defaults" src="server">
992 <member name="channel" type="U16"/>
993 <member name="defaults" type="challenge_defaults"/>
994 </message>
995
996 <message type="0412" name="game_error" src="server">
997 Unable to create challenge. The channel is be optional.
998 <member name="message" type="CONSTANT" value='Sorry, you are already playing in one game, so you can&apos;t start playing in another.'/>
999 <member name="channel" type="U16"/>
1000 </message>
1001
1002 <message type="0414" name="game_record" src="server">
1003 The users game record.
1004 <member name="name" type="username"/>
1005 <member name="more" type="flag"/>
1006 Wether more games are available (must be requested manually)
1007 <member name="games" type="game_record" array="yes"/>
1008 </message>
1009
1010 <message type="0417" name="error" src="server">
1011 <member name="message" type="CONSTANT" value='Sorry, your opponent is currently not logged in, so you can&apos;t resume this game.'/>
1012 </message>
1013
1014 <message type="0418" name="error" src="server">
1015 <member name="message" type="CONSTANT" value='Sorry, your opponent is already playing in a game, so you cannot continue this one.'/>
1016 </message>
1017
1018 <message type="0419" name="error" src="server">
1019 <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.'/>
1020 </message>
1021
1022 <message type="041c" name="upd_game2" src="server">
1023 Unclear.
1024 <member name="channel_junk" type="U16"/>
1025 <member name="game" type="game"/>
1026 </message>
1027
1028 <message type="041f" name="error" src="server">
1029 <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.'/>
1030 </message>
1031
1032 <message type="0420" name="error" src="server">
1033 <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.'/>
1034 </message>
1035
1036 <message type="0421" name="error" src="server">
1037 <member name="message" type="CONSTANT" value='Sorry, this game is a private lesson. You will not be allowed to observe it.'/>
1038 </message>
1039
1040 <!-- added recently -->
1041 <message type="043a" name="add_global_challenge" src="server">
1042 <p>
1043 Adds or updates a global challenge (open game list).
1044 </p>
1045 <member name="channel" type="U16"/>
1046 <p>
1047 The room this game is associated with.
1048 </p>
1049 <member name="game" type="game"/>
1050 </message>
1051
1052 <h3>Room messages</h3>
1053
1054 <p>Not all room messages are for rooms only, and rooms need to parse
1055 not only these messages. Orthogonality, what for?</p>
1056
1057 <message type="4300" name="join_room" src="server">
1058 <member name="channel" type="U16"/>
1059 <member name="users" type="user" array="yes"/>
1060 </message>
1061
1062 <message type="4301" name="msg_room" src="server">
1063 <member name="channel" type="U16"/>
1064 <member name="name" type="username"/>
1065 <member name="message" type="STRING"/>
1066 </message>
1067
1068 <message type="4302" name="part_room" src="server">
1069 <member name="channel" type="U16"/>
1070 <member name="user" type="user"/>
1071 </message>
1072
1073 <message type="4303" name="del_room" src="server">
1074 <member name="channel" type="U16"/>
1075 </message>
1076
1077 <message type="4304" name="upd_games" src="server">
1078 <member name="channel" type="U16"/>
1079 <member name="games" type="game" array="yes"/>
1080 </message>
1081
1082 <message type="4319" name="desc_room" src="server">
1083 <member name="channel" type="U16"/>
1084 <member name="owner" type="username"/>
1085 <member name="description" type="STRING"/>
1086 </message>
1087
1088 <h3>Game messages</h3>
1089
1090 <message type="4400" name="upd_challenge" src="server">
1091 Unclear.
1092 <member name="channel" type="U16"/>
1093 <member name="challenge" type="challenge"/>
1094 </message>
1095
1096 <message type="4401" name="upd_game" src="server">
1097 <member name="channel" type="U16"/>
1098 <member name="game" type="game"/>
1099 </message>
1100
1101 <message type="4402" name="del_game" src="server">
1102 <member name="channel" type="U16"/>
1103 </message>
1104
1105 <message type="4403" name="upd_observers" src="server">
1106 <member name="channel" type="U16"/>
1107 <member name="users" type="user" array="yes"/>
1108 </message>
1109
1110 <message type="4404" name="del_observer" src="server">
1111 <member name="channel" type="U16"/>
1112 <member name="name" type="username"/>
1113 </message>
1114
1115 <message type="4405" name="set_tree" src="server">
1116 <member name="channel" type="U16"/>
1117 <member name="tree" type="TREE"/>
1118 </message>
1119
1120 <message type="4406" name="upd_tree" src="server">
1121 <member name="channel" type="U16"/>
1122 <member name="tree" type="TREE"/>
1123 </message>
1124
1125 <message type="4409" name="superko" src="server">
1126 Superko-warning.
1127 <member name="channel" type="U16"/>
1128 </message>
1129
1130 <message type="440b" name="final_result" src="server">
1131 <member name="channel" type="U16"/>
1132 <member name="blackscore" type="scorevalues"/>
1133 <member name="whitescore" type="scorevalues"/>
1134 </message>
1135
1136 <message type="440e" name="req_undo" src="server">
1137 <member name="channel" type="U16"/>
1138
1139 </message>
1140
1141 <message type="4410" name="resign_game" src="server">
1142 <member name="channel" type="U16"/>
1143 <member name="player" type="U8"/>
1144 </message>
1145
1146 <message type="4415" name="game_error" src="server">
1147 <member name="channel" type="U16"/>
1148 <member name="message" type="CONSTANT" value='Sorry, this is a lecture game. Only authorized players are allowed to make comments.'/>
1149 </message>
1150
1151 <message type="441a" name="set_teacher" src="server">
1152 <member name="channel" type="U16"/>
1153 <member name="name" type="username"/>
1154 </message>
1155
1156 <message type="441d" name="owner_left" src="server">
1157 <member name="channel" type="U16"/>
1158 <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.'/>
1159 </message>
1160
1161 <message type="441e" name="teacher_left" src="server">
1162 Unclear.
1163 <member name="channel" type="U16"/>
1164 </message>
1165
1166 <message type="4422" name="allow_user_result" src="server">
1167 <member name="message" type="CONSTANT" value='User &quot;%s&quot; will now be allowed full access to your game.'/>
1168 <member name="channel" type="U16"/>
1169 </message>
1170
1171 <message type="4424" name="allow_user_result" src="server">
1172 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; is a guest and cannot be allowed full access to your game.'/>
1173 <member name="channel" type="U16"/>
1174 </message>
1175
1176 <message type="4425" name="allow_user_result" src="server">
1177 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; does not seem to exist and cannot be allowed into your game.'/>
1178 <member name="channel" type="U16"/>
1179 </message>
1180
1181 <message type="4428" name="add_tree" src="server">
1182 <p>See <ref ref="set_tree"/>. In addition, flags the tree as being
1183 uploaded completely.</p>
1184 <member name="channel" type="U16"/>
1185 <member name="tree" type="TREE"/>
1186 </message>
1187
1188 <message type="4429" name="reject_challenge" src="server">
1189 Reject a challenge by a given user. Not checked.
1190
1191 <member name="channel" type="U16"/>
1192 <member name="name" type="username"/>
1193 </message>
1194
1195 <message type="442f" name="new_game" src="server">
1196 <p>Notifies the client that a new game has been created. This
1197 message is sent long *after* upd_games and upd_observers etc.
1198 have been received. *sigh*</p>
1199
1200 <member name="channel" type="U16"/>
1201 <p>The newly created game.</p>
1202 <member name="cid" type="clientid"/>
1203 <p>The ID sent to the server in new_game.</p>
1204 </message>
1205
1206 <message type="4433" name="req_result" src="server">
1207 Unclear.
1208 <member name="channel" type="U16"/>
1209 # # recv_result(?)
1210 </message>
1211
1212 <message type="4434" name="set_quiet" src="server">
1213 <p>Sets (or clears) the quiet flag on a game.</p>
1214 <member name="channel" type="U16"/>
1215 <member name="quiet" type="flag"/>
1216 </message>
1217
1218 <message type="4437" name="set_gametime" src="server">
1219 <p>Sent when joining a game. Gives the remaining time +
1220 periods/moves for the players, to correctly initialize the clocks.</p>
1221 <member name="channel" type="U16"/>
1222 <member name="btime" type="time"/>
1223 <member name="bcount" type="U16"/>
1224 <member name="wtime" type="time"/>
1225 <member name="wcount" type="U16"/>
1226 </message>
1227
1228 <message type="443b" name="del_global_challenge" src="server">
1229 <p>
1230 Remove a game from the global challenge list (open game list).
1231 </p>
1232 <member name="channel" type="U16"/>
1233 <p>The game id to remove.</p>
1234 <member name="game" type="U16"/>
1235 <p>Probably the same. I suggest to use this id for no good reason.</p>
1236 </message>
1237 </body>
1238 </html>
1239