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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.
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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.
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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
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23 </head>
24 <body>
25
26 <h1>$Revision: 1.60 $</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="CLIENTID16" type="U16" multiplier="1"/>
198 <type name="CLIENTID8" type="U8" multiplier="1"/>
199
200 <p>An id chosen by the client, usually starting at one, to identify
201 some handshakes initiated by the client, such as new games or memos.</p>
202
203 <h2>Enumeration and set types used in the protocol.</h2>
204
205 <enum name="GAMETYPE">
206 <member name="DEMONSTRATION" value="0"/>
207 <member name="EDITING" value="1"/>
208 <member name="TEACHING" value="2"/>
209 <member name="SIMUL" value="3"/>
210 <member name="FREE" value="4"/>
211 <member name="RATED" value="5"/>
212 <member name="PRIVATE" value="128"/>
213 <p>PRIVATE is ored onto DEMONSTRATION or TEACHING</p>
214 </enum>
215
216 <set name="GAMEFLAG">
217 <member name="SCORED" value="1"/>
218 <member name="ADJOURNED" value="2"/>
219 <member name="UPLOADED" value="4"/>
220 </set>
221
222 <set name="ROOMFLAG">
223 <member name="ADMIN" value="0x01"/>
224 <p>Admins only(?)</p>
225 <member name="DEFAULT" value="0x04"/>
226 <p>Seems to be set on the english room. Or maybe not.</p>
227 <member name="PRIVATE" value="0x10"/>
228 <p>This room is private.</p>
229 </set>
230
231 <set name="GAMESTATUS">
232 <member name="INPLAY" value="0x80"/>
233 </set>
234
235 <enum name="SCORE">
236 <p>Special score values, in addition to numerical scores. Some are also used with their
237 negative value.</p>
238
239 <member name="TIMEOUT" value="16384 / 4"/>
240 Also used negatively to score for white instead of black.
241
242 <member name="RESIGN" value="16385 / 4"/>
243 Also used negatively to score for white instead of black.
244
245 <member name="FORFEIT" value=" 0 / 4"/>
246 Also used negatively to score for white instead of black.
247
248 <member name="JIGO" value="16386 / 4"/>
249
250 <member name="NO_RESULT" value="16386 / 4"/>
251 <member name="ADJOURNED" value="16387 / 4"/>
252 <member name="UNKNOWN" value="16389 / 4"/>
253 </enum>
254
255 <enum name="RULESET">
256 <member name="JAPANESE" value="0"/>
257 <member name="CHINESE " value="1"/>
258 <member name="AGA" value="2"/>
259 <member name="NEW_ZEALAND" value="3"/>
260 </enum>
261
262 <enum name="TIMESYS">
263 <member name="NONE" value="0"/>
264 <member name="ABSOLUTE" value="1"/>
265 <member name="BYO_YOMI" value="2"/>
266 <member name="CANADIAN" value="3"/>
267 </enum>
268
269 <enum name="COLOUR">
270 <p>Convinience constants used in several places.</p>
271 <member name="BLACK" value="0"/>
272 <member name="WHITE" value="1"/>
273 </enum>
274
275 <h2>Structs used in send &amp; receive messages</h2>
276
277 <struct name="user" class="KGS::User">
278
279 <p>Almost everywhere a user + flags is required, even used in some places
280 where only a username is required. I see no general rule on when a
281 complete user and when a partial user is required.</p>
282
283 <member name="name" type="username"/>
284 <member name="flags" type="U32" value="1"/>
285 </struct>
286
287 <struct name="rules" class="KGS::Rules">
288
289 <p>This structure is used for challenges as well as in the special
290 TREE "subprotocol". It tightly encodes the game parameters.</p>
291
292 <member name="ruleset" type="U8"/>
293 <member name="size" type="U8"/>
294 <member name="handicap" type="U8"/>
295 <member name="komi" type="komi16"/>
296 <member name="timesys" type="U8"/>
297 <member name="time" type="U32"/>
298 <member name="interval" type="U32"/>
299 byo-yomi time / canadian time
300 <member name="count" type="U16"/>
301 periods / moves
302 </struct>
303
304 <h2>Structs used in messages from the client</h2>
305
306 <h2>Client-generated messages</h2>
307
308 <message type="0000" name="login" src="client">
309
310 <p>Sent to login, usually the first message sent. The password needs to be set when the
311 guest flag is true.
312 Possible replies: <ref reply="login"/>. Followed by: <ref reply="timewarning_default"/> <ref reply="chal_defaults"/>
313 </p>
314
315 <member name="ver_major" type="U32" value="2"/>
316 <member name="ver_minor" type="U32" value="6"/>
317 <member name="ver_micro" type="U32" value="1"/>
318 <member name="name" type="username"/>
319 <member name="password" type="password" value="0"/>
320 <member name="guest" type="flag" value="1"/>
321 <member name="_unknown3" type="U16" value="0"/>
322 <member name="locale" type="locale" value='"en_US"'/>
323 <member name="clientver" type="DATA" value='"1.4.2_03:Swing app:Sun Microsystems Inc."'/>
324 The "default" is the java vm version, not exactly he client version. However,
325 you should always send a text like "Jonathan's C client version 0.6" or somesuch,
326 so the server can, if necessary, block broken clients or client versions.
327 </message>
328
329 <message type="0007" name="req_userinfo" src="client">
330 <p>Request info about a certain user. Possible reply: <ref reply="userinfo"/></p>
331 <member name="name" type="username"/>
332 </message>
333
334 <message type="0007" name="update_userinfo" src="client">
335 <p>Update user info. Message structure is very similar
336 to <ref ref="userinfo"/>.</p>
337 <member name="setpass" type="flag"/>
338 Should the password be updated?
339 <member name="password" type="password" value="0"/>
340 <member name="realname" type="realname"/>
341 <member name="email" type="email"/>
342 <member name="info" type="userinfo"/>
343 <member name="homepage" type="url"/>
344 <member name="_unused" type="U64" value="0"/>
345 <member name="_unused" type="U64" value="0"/>
346 </message>
347
348 <message type="0013" name="msg_chat" src="client">
349 <p>This message is sent to initiate or continue a private chat with
350 a user. You'll always receive a copy of what you have sent back
351 from the server (as usual).</p>
352
353 <member name="name" type="username"/>
354 Name of sender ("yourself").
355 <member name="name2" type="username"/>
356 Name of recipient.
357 <member name="message" type="STRING"/>
358 The message.
359 </message>
360
361 <message type="0014" name="req_stats" src="client">
362 <p>Request server statistics. Replied with <ref reply="stats"/></p>
363 </message>
364
365 <message type="0016" name="idle_reset" src="client">
366 <p>Send in response to <ref reply="idle_warn"/> to keep the server from disconnecting.</p>
367 </message>
368
369 <message type="001d" name="ping" src="client">
370 <p>No idea. Not used anymore?</p>
371 </message>
372
373 <message type="001e" name="req_usergraph" src="client">
374 <p>Request user graph data, replied with <ref reply="usergraph"/>.</p>
375 <member name="name" type="username"/>
376 </message>
377
378 <message type="0021" name="req_pic" src="client">
379 <p>Request a user picture from the server. Results in a <ref reply="userpic"/>
380 or a timeout.</p>
381 <member name="name" type="username"/>
382 </message>
383
384 <message type="0021" name="upload_pic" src="client">
385 Same code as pic_req, but with an additional data section that
386 must contain a JPEG image that is &lt;=7KB. It must have 141×200 pixels.
387 <member name="name" type="username"/>
388 <member name="data" type="DATA"/>
389 </message>
390
391 <message type="0023" name="send_memo" src="client">
392 <member name="name" type="username"/>
393 <member name="cid" type="CLIENTID16"/>
394 <p>A boolean, probably. Always true for me.</p>
395 <member name="msg" type="STRING"/>
396 </message>
397
398 <message type="0024" name="delete_memos" src="client">
399 <p>Unconditionally deletes all memos.</p>
400 </message>
401
402 <message type="0100" name="gnotice" src="client">
403 <p>Send a global message. Maybe. Never tried, for obvious reasons :/. Results
404 in a <ref reply="gnotice"/> sent to all users.</p>
405 <member name="notice" type="STRING"/>
406 </message>
407
408 <message type="0200" name="notify_add" src="client">
409
410 <p>Probably setting a notifier on a username, to get informed about
411 changes using <ref reply="notify_upd"/> messages. sending your own
412 username gives you a disconnect, so don't do that at home, kids!</p>
413
414 <member name="name" type="username"/>
415 </message>
416
417 <message type="0201" name="notify_del" src="client">
418
419 <p>Probably remove the notifier again.</p>
420
421 <member name="name" type="username"/>
422 </message>
423
424 <message type="0318" name="list_rooms" src="client">
425 <p>List the rooms in a specific group/category. Results in a <ref reply="upd_rooms"/> message.</p>
426 <member name="group" type="U8"/>
427 </message>
428
429 <message type="031a" name="new_room" src="client">
430 Create a new room. Not verified.
431 <member name="name" type="username"/>
432 <member name="i1" type="U32" value="0"/>
433 <member name="b1" type="U8" value="0"/>
434 <member name="b2" type="U8" value="255"/>
435 <member name="b3" type="U8" value="255"/>
436 <member name="group" type="U8" value="1"/>
437 <member name="name" type="ZSTRING"/>
438 <member name="description" type="ZSTRING"/>
439 <member name="flags" type="U8"/>
440 See ROOMFLAGs
441 </message>
442
443 <message type="031b" name="req_upd_rooms" src="client">
444 <p>Request a rooms update message for the given room.</p>
445 <member name="channel" type="U16"/>
446 </message>
447
448 <message type="0413" name="req_game_record" src="client">
449 <p>Requests part of the users game record to be sent. Results in a <ref reply="game_record"/> or maybe a timeout.</p>
450 <member name="name" type="username"/>
451 <member name="timestamp" type="timestamp"/>
452 If zero, start at the newest games, else only send games
453 before the given timestap.
454 </message>
455
456 <message type="4300" name="join_room" src="client">
457 <p>Joins the given room. <ref reply="join_room"/> messages for yourself
458 and all users in that room, as well as the initial gamelist, are
459 send if the room exists. If not, timeout...</p>
460 <member name="channel" type="U16"/>
461 <member name="user" type="user"/>
462 </message>
463
464 <message type="4301" name="msg_room" src="client">
465 Send a message to the room.
466 <member name="channel" type="U16"/>
467 <member name="name" type="username"/>
468 Must be the login-name of the user.
469 <member name="message" type="STRING"/>
470 </message>
471
472 <message type="4302" name="part_room" src="client">
473 Remove yourself (or maybe others as admin) from a room.
474 <member name="channel" type="U16"/>
475 <member name="name" type="username"/>
476 </message>
477
478 <message type="4305" name="new_game" src="client">
479 <p>Create a new game.</p>
480
481 <member name="channel" type="U16"/>
482 <p>The room where to start the new game</p>
483 <member name="cid" type="CLIENTID16"/>
484 <member name="gametype" type="U8"/>
485 <p>
486 GAMETYPE_UPLOAD probably not allowed. GAMETYPE_PRIVATE
487 only allowd together with GAMETYPE_TEACHING, GAMETYPE_DEMONSTRATION.
488 </p>
489 <member name="flags" type="U8"/>
490 <p>
491 0x2 == global open game list
492 </p>
493 <member name="rules" type="rules"/>
494 <p>When cloning a game, the rules are set up like this:
495 count => 65535, ruleset => 0, time => 4294967295, timesys => 0, interval => 4294967295.
496 Cloning itself seems to be implemented solely in the client (somewhat sane, for a change).
497 </p>
498 <member name="notes" type="STRING"/>
499 </message>
500
501 <message type="430a" name="load_game" src="client">
502 Load an existing game into a room(?)
503 There is no indication that a new game is there except
504 for a upd_observers message with your name in it. Which means
505 you have to watch upd_observers messages that are not for any
506 currently open game and open one. Ugh.
507 <member name="channel" type="U16"/>
508 The room to load the game into.
509 <member name="timestamp" type="timestamp"/>
510 From the game record.
511 <member name="user" type="username"/>
512 <member name="flags" type="U8"/>
513 0 == public, 2 == private
514 </message>
515
516 <message type="430b" name="req_games" src="client">
517 Request to update room game list (send this once per minute to get
518 updated). Results in upd_games messages.
519 <member name="channel" type="U16"/>
520 </message>
521
522 <message type="4319" name="req_desc" src="client">
523 Request room description.
524 <member name="channel" type="U16"/>
525 </message>
526
527 <message type="4400" name="challenge" src="client">
528 <p>Used to send challenges to existing games.</p>
529 <member name="channel" type="U16"/>
530 <member name="black" type="user"/>
531 <member name="white" type="user"/>
532 <member name="gametype" type="U8"/>
533 <member name="cid" type="CLIENTID8"/>
534 <p>Possibly an id. No idea. Better echo this from the challenge request.</p>
535 <member name="rules" type="rules"/>
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 <p>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.</p>
561
562 <member name="channel" type="U16"/>
563 <member name="tree" type="TREE"/>
564 </message>
565
566 <message type="4407" name="mark_dead" src="client">
567 <p>Marks stones ad dead (or alive?) by the client. Details unclear</p>
568
569 <member name="channel" type="U16"/>
570 <member name="x" type="U8"/>
571 <member name="y" type="U8"/>
572 <member name="dead" type="flag"/>
573 <p>Possibly true means mark dead and false unmark, but that's just a wild guess.</p>
574 </message>
575
576 <message type="4408" name="get_tree" src="client">
577 Request the game tree starting at a given node. This is used
578 when the server only sends a partial tree (with end code "more").
579 <member name="channel" type="U16"/>
580 <member name="node" type="U32"/>
581 </message>
582
583 <message type="440c" name="claim_win" src="client">
584 Unclear.
585 <member name="channel" type="U16"/>
586 <member name="_byte" type="U8 "/>
587 Player colour maybe? Unclear.
588 </message>
589
590 <message type="440d" name="add_time" src="client">
591 Not checked.
592
593 <member name="channel" type="U16"/>
594 <member name="time" type="U32"/>
595 <member name="player" type="U8"/>
596 </message>
597
598 <message type="440e" name="req_undo" src="client">
599 <member name="channel" type="U16"/>
600 </message>
601
602 <message type="440f" name="grant_undo" src="client">
603 Can be send after a req_undo message was received to grant the undo.
604 <member name="channel" type="U16"/>
605 </message>
606
607 <message type="4410" name="resign_game" src="client">
608 Resign the game.
609 <member name="channel" type="U16"/>
610 <member name="player" type="U8"/>
611 </message>
612
613 <message type="441a" name="set_teacher" src="client">
614 <p>Change the teacher to somebody else (or possibly yourself == take it). If the
615 name is empty, the game will continue normally.</p>
616 <member name="channel" type="U16"/>
617 <member name="name" type="username"/>
618 </message>
619
620 <message type="4422" name="allow_user" src="client">
621 <p>Unclear. Maybe allow users to talk? No idea, really.</p>
622
623 <member name="channel" type="U16"/>
624 <member name="othername" type="username"/>
625 <member name="name" type="username"/>; # gives user access to the game (to what? ;)
626 </message>
627
628 <message type="4423" name="set_privacy" src="client">
629 Probably sets the "quiet" flag. Not checked.
630 <member name="channel" type="U16"/>
631 <member name="private" type="flag"/>
632 </message>
633
634 <message type="4427" name="game_move" src="client">
635 <p>Only during playing, moves.</p>
636 <member name="channel" type="U16"/>
637 <member name="x" type="U8"/>
638 <member name="y" type="U8"/>
639 </message>
640
641 <message type="4429" name="reject_challenge" src="client">
642 Reject a challenge from a given user. Not checked.
643
644 <member name="channel" type="U16"/>
645 <member name="name" type="username"/>
646 <member name="gametype" type="U8"/>
647 <member name="cid" type="CLIENTID8"/>
648 <p>Possibly an id. No idea. Better echo this from the challenge request.</p>
649 <member name="rules" type="rules"/>
650 </message>
651
652 <message type="442e" name="save_game" src="client">
653 <p>Is send when a game is closed and should be saved on the gamerecord.</p>
654
655 <member name="channel" type="U16"/>
656 </message>
657
658 <message type="4433" name="req_result" src="client">
659 I forgot.
660
661 <member name="channel" type="U16"/>
662 </message>
663
664 <message type="4434" name="set_quiet" src="client">
665 <p>Sets (or clears) the quiet flag on a game.</p>
666 <member name="channel" type="U16"/>
667 <member name="quiet" type="flag"/>
668 </message>
669
670 <message type="4436" name="msg_game" src="client">
671 <member name="channel" type="U16"/>
672 <member name="message" type="STRING"/>
673 </message>
674
675 <message type="ffff" name="quit" src="client">
676 <p>Sent by the client just before it logs out.</p>
677 </message>
678
679 <h2>Structs mainly used in messages send by the server</h2>
680
681 <struct name="challenge_defaults">
682 Send soon after log-in to set the defaults for game challenges.
683 <member name="gametype" type="U8"/>
684 <member name="ruleset" type="U8"/>
685 <p>The ruleset member is a pure guess, please verify. it could also be after size for example.</p>
686 <member name="size" type="U32"/>
687 <member name="timesys" type="U32"/>
688 <member name="time" type="U32"/>
689 <member name="byo_time" type="U32"/>
690 <member name="byo_periods" type="U32"/>
691 <member name="can_time" type="U32"/>
692 <member name="can_stones" type="U32"/>
693 <member name="notes" type="STRING"/>
694 </struct>
695
696 <struct name="game" class="KGS::Game">
697 Basic information about a game. Used in rooms for the gamelist and
698 in games to detect when a game is saved, changed type (e.g. R => D)
699 etc.
700
701 <member name="channel" type="U16"/>
702 <member name="type" type="U8"/>
703 <member name="black" type="user"/>
704 White
705 <member name="white" type="user"/>
706 Black
707 <member name="owner" type="user"/>
708 Owner
709 <member name="size" type="U8"/>
710 <member name="handicap" type="I8"/>
711 &lt; 0 not fully setup
712 <member name="komi" type="komi16"/>
713 <member name="moves" type="I16"/>
714 This field reflects either the movenum or the score, sorry, not even guards help, as
715 the flags to determine that are _after_ the field. Arg. Divide by two to get the actual
716 score (NOT score16!) (arg²).
717 <member name="flags" type="U16"/>
718 <member name="observers" type="U32"/>
719 <member name="saved" type="flag"/>
720 <member name="notes" type="STRING" guard-member="handicap" guard-cond="&lt; 0"/>
721 </struct>
722
723 <struct name="room_obs">
724 Obsolete.
725
726 <member name="name" type="roomname"/>
727 <member name="channel" type="U16"/>
728 <member name="flags" type="U32"/>
729 <member name="users" type="U32"/>
730 </struct>
731
732 <struct name="room" class="KGS::Room">
733 <member name="channel" type="U16"/>
734 <member name="flags" type="U8"/>
735 <member name="group" type="U8"/>
736 <member name="users" type="U16"/>
737 <member name="games" type="U16"/>
738 <member name="name" type="STRING"/>
739 </struct>
740
741 <struct name="scorevalues" class="KGS::Score">
742 <member name="score" type="score32"/>
743 <member name="territory" type="U32"/>
744 <member name="captures" type="U32"/>
745 <member name="i3" type="U32"/>
746 <member name="f2" type="U32"/>
747 <member name="komi" type="komi324"/>
748 <member name="i4" type="U32"/>
749 Apparently the i3, f2, i4 are zero.
750 </struct>
751
752 <struct name="game_record" class="KGS::GameRecord">
753 <p>A single game record entry, as seen in <ref ref="userinfo"/>.</p>
754
755 <member name="timestamp" type="timestamp"/>
756 Time this game was played.
757 <member name="flags1" type="U8"/>
758 <p>0:3 == handicap, 4:7 == gametype:0:4</p>
759 <member name="black" type="user"/>
760 White, flags contain low 8 bits of revision (bits 16-23).
761 <member name="white" type="user"/>
762 Black, flags contain high 8 bits of revision (bits 16-23).
763 <member name="owner" type="user"/>
764
765 <p><p>Owner (or empty)</p>
766
767 <p>The bits 16-24 of black.flags and white.flags give the high and
768 low bits of a revision number in case there are multiple similar
769 games.</p></p>
770
771 <member name="flags2" type="U16"/>
772 <p>0:11 == komi / 2, 12:14 == high 3 bits of gametype, 15: == sign bit</p>
773 <member name="score" type="score16"/>
774 <member name="flags3" type="U8"/>
775
776 <p>0:5 == boardsize; 6: == no idea; 7: == inplay?</p>
777
778 </struct>
779
780 <h2>Server-generated messages</h2>
781
782 <message type="0001" name="login" src="server">
783 <member name="message" type="CONSTANT" value='login successful'/>
784 <member name="success" type="CONSTANT" value="1"/>
785 </message>
786
787 <message type="0002" name="login" src="server">
788 <member name="message" type="CONSTANT" value='login successful: client version is outdated.'/>
789 <member name="success" type="CONSTANT" value="1"/>
790 </message>
791
792 <message type="0003" name="login" src="server">
793 <member name="message" type="CONSTANT" value='login failed: client version out of date'/>
794 ** maybe more following? **
795 </message>
796
797 <message type="0004" name="login" src="server">
798 <member name="message" type="CONSTANT" value='login failed: wrong password'/>
799 ** maybe more following? **
800 </message>
801
802 <message type="0005" name="login" src="server">
803 <member name="message" type="CONSTANT" value='login failed: specified user does not exist'/>
804 </message>
805
806 <message type="0006" name="login" src="server">
807 <member name="message" type="CONSTANT" value='login failed: user of same name logged in'/>
808 </message>
809
810 <message type="0008" name="userinfo" src="server">
811 User info.
812 <member name="_unused0" type="flag"/>
813 <member name="user" type="user"/>
814 <member name="_unused1" type="U64"/>
815 <member name="realname" type="realname"/>
816 <member name="email" type="email"/>
817 <member name="info" type="userinfo"/>
818 <member name="homepage" type="url"/>
819 <member name="regdate" type="timestamp"/>
820 When the user registered (0 == never registered).
821 <member name="lastlogin" type="timestamp"/>
822 When the user logged in for the last time.
823 <!-- maybe more? -->
824 </message>
825
826 <message type="0009" name="upd_userinfo_result" src="server">
827 <member name="name" type="username"/>
828 <member name="message" type="CONSTANT" value='Thanks for registering.'/>
829 </message>
830
831 <message type="000a" name="upd_userinfo_result" src="server">
832 <member name="name" type="username"/>
833 <member name="message" type="CONSTANT" value='The user &quot;%s&quot; has been successfully updated.'/>
834 </message>
835
836 <message type="000b" name="upd_userinfo_result" src="server">
837 <member name="name" type="username"/>
838 <member name="message" type="CONSTANT" value='There is no user &quot;%s&quot;. Update failed.'/>
839 </message>
840
841 <message type="0012" name="userinfo_failed" src="server">
842 <p>Sent when no userinfo for the requested user could be found(?)</p>
843 <member name="name" type="username"/>
844 </message>
845
846 <message type="0013" name="msg_chat" src="server">
847 <member name="name" type="username"/>
848 Name of sender (either yourself (echo) or other)
849 <member name="name2" type="username"/>
850 Name of recipient.
851 <member name="message" type="STRING"/>
852 </message>
853
854 <message type="0015" name="stats" src="server">
855 <member name="ver_major" type="U16"/>
856 <member name="ver_minor" type="U16"/>
857 <member name="ver_micro" type="U16"/>
858 <member name="boot_time" type="timestamp"/>
859 <member name="users_cur" type="U32"/>
860 <member name="users_max" type="U32"/>
861 <member name="users_lim" type="U32"/>
862 <member name="accts_cur" type="U32"/>
863 <member name="accts_max" type="U32"/>
864 <member name="unknown1" type="U32"/>
865 <member name="work_max" type="U32"/>
866 <member name="rooms_cur" type="U32"/>
867 <member name="rooms_max" type="U32"/>
868 <member name="rooms_lim" type="U32"/>
869 <member name="games_cur" type="U32"/>
870 <member name="games_max" type="U32"/>
871 <member name="games_lim" type="U32"/>
872 <member name="results_cur" type="U32"/>
873 <member name="results_max" type="U32"/>
874 <member name="unknown2" type="U32"/>
875 <member name="params_cur" type="U32"/>
876 <member name="params_max" type="U32"/>
877 <member name="bytes_in" type="U64"/>
878 <member name="packets_in" type="U64"/>
879 <member name="bytes_out" type="U64"/>
880 <member name="packets_out" type="U64"/>
881 </message>
882
883 <message type="0016" name="idle_warn" src="server">
884 <p>idle warning, autologout soon (10 minutes...). Responding with <ref ref="ping"/> usually helps.</p>
885 </message>
886
887 <message type="0018" name="login" src="server">
888 <member name="message" type="CONSTANT" value='logged out: another client logged in with your username'/>
889 </message>
890
891 <message type="001c" name="login" src="server">
892 <member name="message" type="CONSTANT" value='logged out: idle for too long'/>
893 </message>
894
895 <message type="0020" name="error" src="server">
896 <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.'/>
897 </message>
898
899 <message type="0022" name="login" src="server">
900 I was blocked sooo many times for developing this client that it was
901 easy to figure out. The KGS admins sure need no extra nazi training
902 :(
903 <member name="reason" type="STRING"/>
904 <member name="result" type="CONSTANT" value='user or ip blocked'/>
905 </message>
906
907 <message type="001b" name="timewarning_default" src="server">
908 WILD guess
909 <member name="channel" type="U16"/>
910 <member name="time" type="U16"/>
911 </message>
912
913 <message type="001c" name="idle_err" src="server">
914 autologout
915 </message>
916
917 <message type="001d" name="ping" src="server">
918 Sent by the server regularly, but not answering them
919 isn't valid. Strange form of keepalive?
920 </message>
921
922 <message type="001e" name="usergraph" src="server">
923 User graph data.
924 <member name="name" type="username"/>
925 <member name="data" type="I16" array="yes"/>
926 If empty, no graph is available. The unit seems to
927 be centi-kyu, with 1 dan == 0, 2 dan == 100, 1 kyu == -100.
928 There is probably one entry per day, the newest one last.
929 </message>
930
931 <message type="0021" name="userpic" src="server">
932 <member name="name" type="username"/>
933 Reply to pic_req, contains an image in jpeg format.
934 <member name="data" type="DATA"/>
935 </message>
936
937 <message type="0025" name="memo_error" src="server">
938 <p>Account unknown.</p>
939 <member name="name" type="username"/>
940 <member name="cid" type="CLIENTID16"/>
941 <member name="message" type="CONSTANT" value='memo send failed: account already exists'/>
942 <member name="subtype" type="CONSTANT" value='25'/>
943 </message>
944
945 <message type="0026" name="memo_error" src="server">
946 <p>Just a guess.</p>
947 <member name="name" type="username"/>
948 <member name="cid" type="CLIENTID16"/>
949 <member name="message" type="CONSTANT" value='memo send failed: error 26'/>
950 <member name="subtype" type="CONSTANT" value='26'/>
951 </message>
952
953 <message type="0027" name="memo_error" src="server">
954 <p>User is currently online, please use chat.</p>
955 <member name="name" type="username"/>
956 <member name="cid" type="CLIENTID16"/>
957 <member name="message" type="CONSTANT" value='memo send failed: user is online, use chat'/>
958 <member name="subtype" type="CONSTANT" value='27'/>
959 </message>
960
961 <message type="0028" name="memo_error" src="server">
962 <p>Just a guess.</p>
963 <member name="name" type="username"/>
964 <member name="cid" type="CLIENTID16"/>
965 <member name="message" type="CONSTANT" value='memo send failed: error 28'/>
966 <member name="subtype" type="CONSTANT" value='28'/>
967 </message>
968
969 <message type="0029" name="memo" src="server">
970 <member name="name" type="username"/>
971 <member name="time" type="timestamp"/>
972 <member name="message" type="ZSTRING"/>
973 </message>
974
975 <message type="002a" name="memo_sent" src="server">
976 <p>The memo was sent successfully</p>
977 <member name="name" type="username"/>
978 <member name="cid" type="CLIENTID16"/>
979 </message>
980
981 <message type="0100" name="gnotice" src="server">
982 global notice, sent to everybody
983 <member name="notice" type="STRING"/>
984 </message>
985
986 <message type="0202" name="notify_event" src="server">
987 # maybe soe notify? Totally unclear.
988 # loc 0" type="userinfo, flags etc. loc 1 => gameinfo?, loc 2 => game result (more data)
989 <member name="event" type="U32"/>
990 <member name="user" type="user"/>
991 <member name="gamerecord" type="game_record" guard-member="event" guard-cond="== 2"/>
992 <p>Game result record?</p>
993
994 </message>
995
996 <message type="030c" name="unknown_030c" src="server">
997 <p>Not the slightest... No payload, either.</p>
998 </message>
999
1000 <message type="0310" name="priv_room" src="server">
1001 "permission denied" when joining a room
1002 <member name="name" type="STRING"/>
1003 </message>
1004
1005 <message type="0318" name="upd_rooms" src="server">
1006 <member name="rooms" type="room" array="yes"/>
1007 </message>
1008
1009 <message type="0411" name="chal_defaults" src="server">
1010 <member name="channel" type="U16"/>
1011 <member name="defaults" type="challenge_defaults"/>
1012 </message>
1013
1014 <message type="0412" name="already_playing" src="server">
1015 Unable to create new game.
1016 <member name="message" type="CONSTANT" value='Sorry, you are already playing in one game, so you can&apos;t start playing in another.'/>
1017 <member name="cid" type="CLIENTID16"/>
1018 <p>The cid of the new_game etc. request.</p>
1019 </message>
1020
1021 <message type="0414" name="game_record" src="server">
1022 The users game record.
1023 <member name="name" type="username"/>
1024 <member name="more" type="flag"/>
1025 Wether more games are available (must be requested manually)
1026 <member name="games" type="game_record" array="yes"/>
1027 </message>
1028
1029 <message type="0417" name="error" src="server">
1030 <member name="message" type="CONSTANT" value='Sorry, your opponent is currently not logged in, so you can&apos;t resume this game.'/>
1031 </message>
1032
1033 <message type="0418" name="error" src="server">
1034 <member name="message" type="CONSTANT" value='Sorry, your opponent is already playing in a game, so you cannot continue this one.'/>
1035 </message>
1036
1037 <message type="0419" name="error" src="server">
1038 <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.'/>
1039 </message>
1040
1041 <message type="041c" name="upd_game2" src="server">
1042 Unclear.
1043 <member name="channel_junk" type="U16"/>
1044 <member name="game" type="game"/>
1045 </message>
1046
1047 <message type="041f" name="error" src="server">
1048 <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.'/>
1049 </message>
1050
1051 <message type="0420" name="error" src="server">
1052 <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.'/>
1053 </message>
1054
1055 <message type="0421" name="error" src="server">
1056 <member name="message" type="CONSTANT" value='Sorry, this game is a private lesson. You will not be allowed to observe it.'/>
1057 </message>
1058
1059 <!-- added recently -->
1060 <message type="043a" name="add_global_challenge" src="server">
1061 <p>
1062 Adds or updates a global challenge (open game list).
1063 </p>
1064 <member name="channel" type="U16"/>
1065 <p>
1066 The room this game is associated with.
1067 </p>
1068 <member name="game" type="game"/>
1069 <p>The game. The "moves" member contains a small number. Probably garbage.</p>
1070 </message>
1071
1072 <h3>Room messages</h3>
1073
1074 <p>Not all room messages are for rooms only, and rooms need to parse
1075 not only these messages. Orthogonality, what for?</p>
1076
1077 <message type="4300" name="join_room" src="server">
1078 <member name="channel" type="U16"/>
1079 <member name="users" type="user" array="yes"/>
1080 </message>
1081
1082 <message type="4301" name="msg_room" src="server">
1083 <member name="channel" type="U16"/>
1084 <member name="name" type="username"/>
1085 <member name="message" type="STRING"/>
1086 </message>
1087
1088 <message type="4302" name="part_room" src="server">
1089 <member name="channel" type="U16"/>
1090 <member name="user" type="user"/>
1091 </message>
1092
1093 <message type="4303" name="del_room" src="server">
1094 <member name="channel" type="U16"/>
1095 </message>
1096
1097 <message type="4304" name="upd_games" src="server">
1098 <member name="channel" type="U16"/>
1099 <member name="games" type="game" array="yes"/>
1100 </message>
1101
1102 <message type="4319" name="desc_room" src="server">
1103 <member name="channel" type="U16"/>
1104 <member name="owner" type="username"/>
1105 <member name="description" type="STRING"/>
1106 </message>
1107
1108 <h3>Game messages</h3>
1109
1110 <message type="4400" name="challenge" src="server">
1111 Unclear.
1112 <member name="channel" type="U16"/>
1113 <member name="black" type="user"/>
1114 <member name="white" type="user"/>
1115 <member name="gametype" type="U8"/>
1116 <member name="cid" type="CLIENTID8"/>
1117 <p>Possibly an id. No idea. Better echo this from the challenge request.</p>
1118 <member name="rules" type="rules"/>
1119 <member name="notes" type="STRING"/>
1120 <p>This field is optional</p>
1121 </message>
1122
1123 <message type="4401" name="upd_game" src="server">
1124 <member name="channel" type="U16"/>
1125 <member name="game" type="game"/>
1126 </message>
1127
1128 <message type="4402" name="del_game" src="server">
1129 <member name="channel" type="U16"/>
1130 </message>
1131
1132 <message type="4403" name="upd_observers" src="server">
1133 <member name="channel" type="U16"/>
1134 <member name="users" type="user" array="yes"/>
1135 </message>
1136
1137 <message type="4404" name="del_observer" src="server">
1138 <member name="channel" type="U16"/>
1139 <member name="name" type="username"/>
1140 </message>
1141
1142 <message type="4405" name="set_tree" src="server">
1143 <member name="channel" type="U16"/>
1144 <member name="tree" type="TREE"/>
1145 </message>
1146
1147 <message type="4406" name="upd_tree" src="server">
1148 <member name="channel" type="U16"/>
1149 <member name="tree" type="TREE"/>
1150 </message>
1151
1152 <message type="4409" name="superko" src="server">
1153 Superko-warning.
1154 <member name="channel" type="U16"/>
1155 </message>
1156
1157 <message type="440b" name="final_result" src="server">
1158 <member name="channel" type="U16"/>
1159 <member name="blackscore" type="scorevalues"/>
1160 <member name="whitescore" type="scorevalues"/>
1161 </message>
1162
1163 <message type="440c" name="out_of_time" src="server">
1164 <member name="channel" type="U16"/>
1165 <member name="player" type="U8"/>
1166 </message>
1167
1168 <message type="440e" name="req_undo" src="server">
1169 <member name="channel" type="U16"/>
1170 </message>
1171
1172 <message type="4410" name="resign_game" src="server">
1173 <member name="channel" type="U16"/>
1174 <member name="player" type="U8"/>
1175 </message>
1176
1177 <message type="4415" name="game_error" src="server">
1178 <member name="channel" type="U16"/>
1179 <member name="message" type="CONSTANT" value='Sorry, this is a lecture game. Only authorized players are allowed to make comments.'/>
1180 </message>
1181
1182 <message type="441a" name="set_teacher" src="server">
1183 <member name="channel" type="U16"/>
1184 <member name="name" type="username"/>
1185 </message>
1186
1187 <message type="441d" name="owner_left" src="server">
1188 <member name="channel" type="U16"/>
1189 <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.'/>
1190 </message>
1191
1192 <message type="441e" name="teacher_left" src="server">
1193 Unclear.
1194 <member name="channel" type="U16"/>
1195 </message>
1196
1197 <message type="4422" name="allow_user_result" src="server">
1198 <member name="message" type="CONSTANT" value='User &quot;%s&quot; will now be allowed full access to your game.'/>
1199 <member name="channel" type="U16"/>
1200 </message>
1201
1202 <message type="4424" name="allow_user_result" src="server">
1203 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; is a guest and cannot be allowed full access to your game.'/>
1204 <member name="channel" type="U16"/>
1205 </message>
1206
1207 <message type="4425" name="allow_user_result" src="server">
1208 <member name="message" type="CONSTANT" value='Sorry, user &quot;%s&quot; does not seem to exist and cannot be allowed into your game.'/>
1209 <member name="channel" type="U16"/>
1210 </message>
1211
1212 <message type="4428" name="add_tree" src="server">
1213 <p>See <ref ref="set_tree"/>. In addition, flags the tree as being
1214 uploaded completely.</p>
1215 <member name="channel" type="U16"/>
1216 <member name="tree" type="TREE"/>
1217 </message>
1218
1219 <message type="4429" name="reject_challenge" src="server">
1220 Reject a challenge by a given user. Not checked.
1221 <!-- should become a record type somehow... -->
1222
1223 <member name="channel" type="U16"/>
1224 <member name="name" type="username"/>
1225 <member name="gametype" type="U8"/>
1226 <member name="cid" type="CLIENTID8"/>
1227 <p>Possibly an id. No idea. Better echo this from the challenge request.</p>
1228 <member name="rules" type="rules"/>
1229 </message>
1230
1231 <message type="442f" name="new_game" src="server">
1232 <p>Notifies the client that a new game has been created. This
1233 message is sent long *after* upd_games and upd_observers etc.
1234 have been received. *sigh*</p>
1235
1236 <member name="channel" type="U16"/>
1237 <p>The newly created game.</p>
1238 <member name="cid" type="CLIENTID16"/>
1239 <p>The ID sent to the server in new_game.</p>
1240 </message>
1241
1242 <message type="4433" name="req_result" src="server">
1243 Unclear.
1244 <member name="channel" type="U16"/>
1245 # # recv_result(?)
1246 </message>
1247
1248 <message type="4434" name="set_quiet" src="server">
1249 <p>Sets (or clears) the quiet flag on a game.</p>
1250 <member name="channel" type="U16"/>
1251 <member name="quiet" type="flag"/>
1252 </message>
1253
1254 <message type="4437" name="set_gametime" src="server">
1255 <p>Sent when joining a game. Gives the remaining time +
1256 periods/moves for the players, to correctly initialize the clocks.</p>
1257 <member name="channel" type="U16"/>
1258 <member name="btime" type="time"/>
1259 <member name="bcount" type="U16"/>
1260 <member name="wtime" type="time"/>
1261 <member name="wcount" type="U16"/>
1262 </message>
1263
1264 <message type="443b" name="del_global_challenge" src="server">
1265 <p>
1266 Remove a game from the global challenge list (open game list).
1267 </p>
1268 <member name="channel" type="U16"/>
1269 <p>The game id to remove.</p>
1270 <member name="game" type="U16"/>
1271 <p>Probably the same. I suggest to use this id for no good reason.</p>
1272 </message>
1273 </body>
1274 </html>
1275