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/cvs/deliantra/server/ext/login.ext
Revision: 1.34
Committed: Tue Apr 3 00:21:37 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.33: +3 -0 lines
Log Message:
- fix ber encoding
- reduce image checksum length to 6 bytes (from 16)
- implement fx packet, which reduces
  face overhead to amortised 10/12 bytes per face instead of
  21/32 bytes and allows an unlimited number of faces
  instead of 2**16.

File Contents

# Content
1 #! perl # MANDATORY
2
3 # login handling
4
5 use Fcntl;
6 use Coro::AIO;
7 use List::Util qw(min max);
8
9 my $PLAYERDIR = sprintf "%s/%s", cf::localdir, cf::playerdir;
10
11 # paranoia function to overwrite a string-in-place
12 sub nuke_str {
13 substr $_[0], 0, (length $_[0]), "x" x length $_[0]
14 }
15
16 sub query {
17 my ($ns, $flags, $text) = @_;
18
19 my $current = $Coro::current;
20 $ns->query ($flags, $text, sub { $current->ready; $current = $_[0]; });
21 Coro::schedule while ref $current;
22
23 $current
24 }
25
26 sub can_cleanup {
27 my ($pl, $mtime) = @_;
28
29 my $age = time - $mtime;
30 my $level = $pl->ob->level;
31
32 ($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
33 || ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
34 || ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
35 || $age > 700 * 86400 # 2 years for everybody else
36 }
37
38 sub check_playing {
39 my ($ns, $user) = @_;
40
41 return unless cf::player::find_active $user;
42
43 $ns->send_drawinfo (
44 "That player is already logged in on this server. "
45 . "If you want to create a new player, choose another name. "
46 . "If you are already a registered player, make sure nobody "
47 . "else is using your account at this time. If you lost your conenction "
48 . "then the server will likely timeout within a minute. If you still "
49 . "cannot log-in after a minute, you are still logged in. Make sure "
50 . "you do not have another client running. If you use windows, reboot, "
51 . "this will fix anything.",
52 cf::NDI_RED
53 );
54
55 1
56 }
57
58 sub check_clean_save {
59 my ($pl) = @_;
60
61 if (my $time = delete $pl->{unclean_save}) {
62 $pl->ns->send_drawinfo (
63 "You didn't use a savebed to leave this realm. This is very dangerous, "
64 . "as lots of things could happen when you leave by other means, such as cave-ins, "
65 . "or monsters suddenly snapping your body. Better use a savebed next time.",
66 cf::NDI_RED
67 );
68 #d#TODO
69 }
70 }
71
72 # delete a player directory, be non-blocking AND synchronous...
73 # (thats hard, so we crap out and fork).
74 sub nuke_playerdir {
75 my ($user) = @_;
76
77 aio_stat "$PLAYERDIR/$user";
78 system "cd \Q$PLAYERDIR\E "
79 . "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
80 . "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
81 }
82
83 sub setup {
84 my ($ns, $args) = @_;
85
86 # run through the cmds of setup
87 # syntax is setup <cmdname1> <parameter> <cmdname2> <parameter> ...
88 #
89 # we send the status of the cmd back, or a FALSE is the cmd is the server unknown
90 # The client then must sort this out
91
92 my %setup = split / +/, $args;
93 while (my ($k, $v) = each %setup) {
94
95 if ($k eq "sound") {
96 $ns->sound ($v);
97
98 } elsif ($k eq "exp64") {
99 $setup{$k} = 1;
100
101 } elsif ($k eq "spellmon") {
102 $ns->monitor_spells ($v);
103
104 } elsif ($k eq "darkness") {
105 $ns->darkness ($v);
106
107 } elsif ($k eq "map1cmd") {
108 $ns->mapmode (cf::Map1Cmd) if $v > 0;
109
110 } elsif ($k eq "map1acmd") {
111 $ns->mapmode (cf::Map1aCmd) if $v > 0;
112
113 } elsif ($k eq "map2cmd") {
114 # gcfclient bug, map1acmd is sent too late
115 $ns->mapmode (cf::Map1aCmd);
116 $setup{$k} = "FALSE";
117
118 } elsif ($k eq "newmapcmd") {
119 $ns->newmapcmd ($v);
120
121 } elsif ($k eq "mapinfocmd") {
122 $ns->mapinfocmd ($v);
123
124 } elsif ($k eq "extcmd") {
125 $ns->extcmd ($v > 0);
126
127 } elsif ($k eq "extmap") {
128 $ns->extmap ($v);
129
130 } elsif ($k eq "facecache") {
131 $ns->facecache ($v);
132
133 } elsif ($k eq "faceset") {
134 $ns->faceset (0);
135 $setup{$k} = 0;
136 # $ns->image2 (1)
137
138 } elsif ($k eq "itemcmd") {
139 # Version of the item protocol command to use. Currently,
140 # only supported versions are 1 and 2. Using a numeric
141 # value will make it very easy to extend this in the future.
142 $ns->itemcmd ($v) if $v >= 1 && $v <= 2;
143
144 $setup{$k} = $ns->itemcmd;
145
146 } elsif ($k eq "mapsize") {
147 my ($x, $y) = split /x/, $v;
148
149 $ns->mapx ($x = max 9, min cf::MAP_CLIENT_X, $x);
150 $ns->mapy ($y = max 9, min cf::MAP_CLIENT_Y, $y);
151
152 $setup{$k} = "${x}x${y}";
153
154 } elsif ($k eq "extendedMapInfos") {
155 $ns->ext_mapinfos ($v);
156
157 } elsif ($k eq "extendedTextInfos") {
158 $ns->has_readable_type ($v);
159
160 } elsif ($k eq "fxix") {
161 $ns->fxix ($v);
162
163 } else {
164 # other commands:
165 # sexp: no idea, probably for oudated servers
166 # tick: more stupidity, server should sned a tick per tick
167
168 $setup{$k} = "FALSE";
169 }
170 }
171
172 $ns->send_packet (join " ", setup => %setup);
173
174 cf::datalog setup =>
175 request => $args,
176 reply => \%setup,
177 client => $ns->version,
178 ;
179 }
180
181 sub addme {
182 my ($ns) = @_;
183
184 if (!$ns->facecache)
185 {
186 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
187
188
189 ***
190 *** WARNING:
191 *** Your client does not support face/image caching,
192 *** or it has been disabled. Face caching is mandatory
193 *** so please enable it or use a newer client.
194 ***
195 *** Look at your client preferences:
196 ***
197 *** CFPlus: all known versions automatically enable the facecache.
198 *** cfclient: use the -cache commandline option.
199 *** cfclient: map will not redraw automatically (bug).
200 *** gcfclient: use -cache commandline option, or enable
201 *** gcfclient: Client=>Configure=>Map & Image=>Cache Images.
202 *** jcrossclient: your client is broken, use CFPlus or gcfclient.
203 ***
204 ***
205 EOF
206 if ($ns->version =~ /jcrossclient/) {
207 # let them, for now
208 } else {
209 $ns->flush;
210 return $ns->destroy;
211 }
212
213 # $ns->facecache = true;
214 }
215
216 if ($ns->mapmode < cf::Map1aCmd) {
217 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
218
219
220 ***
221 *** WARNING:
222 *** Your client is too old. Please upgrade to a newer version.
223 EOF
224
225 $ns->flush;
226 return $ns->destroy;
227 }
228
229 $ns->pl and return $ns->destroy;
230
231 $ns->async (sub {
232 my ($user, $pass);
233
234 $ns->send_packet ("addme_success");
235
236 for (;;) {
237 $ns->send_drawinfo (
238 "Please enter your username now. If you are a new user, "
239 . "make one up that describes your character best. "
240 . "Only letters and digits are allowed, though.",
241 cf::NDI_BLUE
242 );
243
244 # read username
245 while () {
246 $user = query $ns, 0, "What is your name?\n:";
247
248 if ($cf::LOGIN_LOCK{$user}) {
249 $ns->send_drawinfo (
250 "That username is currently used in another login session. "
251 . "Chose another, or wait till the other session has ended.",
252 cf::NDI_RED
253 );
254 } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
255 last;
256 } else {
257 $ns->send_drawinfo (
258 "Your username contains illegal characters "
259 . "(only a-z, A-Z and 0-9 are allowed), "
260 . "or is not between 3 and 18 characters in length.",
261 cf::NDI_RED
262 );
263 }
264 }
265
266 check_playing $ns, $user and next;
267
268 $ns->send_drawinfo (
269 "Welcome $user, please enter your password now. "
270 . "New users should now choose a password. "
271 . "Anything your client lets you enter is fine.",
272 cf::NDI_BLUE
273 );
274
275 # read password
276 while () {
277 $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
278 last if $pass =~ /.../;
279 $ns->send_drawinfo (
280 "Try to use at least three characters as your password please, "
281 . "that cannot be too much to ask for :)",
282 cf::NDI_RED
283 );
284 }
285
286 # lock this username for the remainder of this login session
287 if ($cf::LOGIN_LOCK{$user}) {
288 $ns->send_drawinfo (
289 "That username is currently used in another login session. "
290 . "Chose another, or wait till the other session has ended.",
291 cf::NDI_RED
292 );
293 next;
294 }
295 local $cf::LOGIN_LOCK{$user} = 1;
296
297 check_playing $ns, $user and next;
298
299 # try to read the user file and check the password
300 if (my $pl = cf::player::find $user) {
301 aio_stat $pl->path and next;
302 my $mtime = (stat _)[9];
303 my $hash = $pl->password;
304
305 if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
306 nuke_str $pass;
307 # password matches, wonderful
308 my $pl = cf::player::find $user or next;
309 $pl->connect ($ns);
310 check_clean_save $pl;
311 last;
312 } elsif (can_cleanup $pl, $mtime) {
313 Coro::Timer::sleep 1;
314
315 $ns->send_drawinfo (
316 "Player exists, but password does not match. If this is your account, "
317 . "please try again. If not, you can now decide to take over this account "
318 . "because it has not been in-use for some time.",
319 cf::NDI_RED
320 );
321
322 #TODO: nuke_str
323 (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
324 or next;
325
326 # check if the file hasn't changed
327 aio_stat cf::player::path $user and next;
328 $mtime == (stat _)[9] or next;
329
330 $pl->quit_character;
331
332 # fall through to creation
333 } else {
334 nuke_str $pass;
335
336 Coro::Timer::sleep 1;
337
338 $ns->send_drawinfo (
339 "Wrong username or password. Please try again "
340 . "(check for Numlock and other semi-obvious error sources).",
341 cf::NDI_RED
342 );
343 next;
344 }
345 }
346
347 # the rest of this function is character creation
348
349 # just to make sure nothing is left over
350 nuke_playerdir $user;
351
352 my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
353
354 if ($pass2 ne $pass) {
355 nuke_str $pass;
356 nuke_str $pass2;
357 $ns->send_drawinfo (
358 "The passwords do not match, please try again.",
359 cf::NDI_RED
360 );
361 next;
362 }
363
364 nuke_str $pass2;
365
366 my $pl = cf::player::new $user;
367 $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
368 nuke_str $pass;
369 $pl->connect ($ns);
370
371 my $ob = $pl->ob;
372
373 while () {
374 $ob->update_stats;
375 $pl->save_stats;
376
377 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
378 "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
379
380 if ($res =~ /^[Nn]/) {
381 last;
382 } elsif ($res > 0 && $res <= 7) {
383 my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
384
385 if ($swap > 0 && $swap <= 7) {
386 $ob->swap_stats ($res - 1, $swap - 1);
387 }
388 } else {
389 $ob->roll_stats;
390 }
391 }
392
393 $ob->set_animation (2);
394 $ob->add_statbonus;
395
396 $ns->send_drawinfo ($ob->msg, cf::NDI_BLUE);
397 $ns->send_packet (sprintf "query %d %s", cf::CS_QUERY_SINGLECHAR,
398 "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n");
399
400 $ns->state (cf::ST_CHANGE_CLASS);
401 delete $pl->{deny_save};#d# too early
402
403 last;
404 }
405 });
406 }
407
408 cf::register_command quit => sub {
409 my ($ob, $arg) = @_;
410
411 $ob->reply (undef,
412 "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
413 . "If you are sure you want to do this, then use the quit_character command instead of quit.",
414 cf::NDI_UNIQUE | cf::NDI_RED);
415 };
416
417 cf::register_command quit_character => sub {
418 my ($ob, $arg) = @_;
419
420 my $pl = $ob->contr;
421
422 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
423 if ($_[0] !~ /^[yY]/) {
424 $ob->reply (undef,
425 "Ok, not not quitting then.",
426 cf::NDI_UNIQUE | cf::NDI_RED);
427 } else {
428 $ob->reply (undef,
429 "Ok, quitting, hope to see you again.",
430 cf::NDI_UNIQUE | cf::NDI_RED);
431 $pl->ns->flush;
432 cf::async { $pl->quit_character };
433 }
434 });
435 };
436
437 cf::object->attach (
438 type => cf::SAVEBED,
439 on_apply => sub {
440 my ($bed, $ob) = @_;
441
442 return cf::override 0 unless $ob->type == cf::PLAYER;
443
444 my $pl = $ob->contr;
445
446 # update respawn position
447 $pl->savebed ($bed->map->path, $bed->x, $bed->y);
448 cf::async { $pl->save };
449
450 $pl->killer ("left");
451 $ob->check_score;
452
453 $ob->reply (undef, "In the future, you will wake up here when you die.");
454
455 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
456 if ($_[0] !~ /^[yY]/) {
457 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
458 $pl->deactivate;
459 $pl->ns->destroy;
460 } else {
461 cf::async { $pl->save };
462 }
463 });
464 },
465 );
466
467 cf::player->attach (
468 on_login => sub {
469 my ($pl) = @_;
470 my $name = $pl->ob->name;
471
472 $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
473 },
474 on_logout => sub {
475 my ($pl, $cleanly) = @_;
476 my $name = $pl->ob->name;
477
478 if ($cleanly) {
479 $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
480 } else {
481 $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
482 $pl->{unclean_save} = $cf::RUNTIME;
483 }
484 },
485 );
486
487 cf::client->attach (
488 on_addme => \&addme,
489 on_setup => \&setup,
490 );
491
492 #############################################################################
493
494 our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
495 our $SAVE_TIMEOUT = 20; # save players every n seconds
496
497 our $SCHEDULER = cf::async_ext {
498 my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
499 while () {
500 $schedule_interval->next;
501
502 # this weird form of iteration over values is used because
503 # the hash changes underneath us frequently, and for
504 # keeps a direct reference to the value without (in 5.8 perls)
505 # keeping a reference, so this is prone to crashes or worse.
506 my @players = keys %cf::PLAYER;
507 for (@players) {
508 my $pl = $cf::PLAYER{$_}
509 or next;
510 $pl->valid or next;
511
512 eval {
513 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
514 $cf::WAIT_FOR_TICK_ONE->wait;
515 $pl->save;
516
517 unless ($pl->active) {
518 # check refcounts, this is tricky and needs to be adjusted to fit server internals
519 my $ob = $pl->ob;
520 Scalar::Util::weaken $pl;
521 Scalar::Util::weaken $ob;
522 my $a_ = $pl->refcnt;#d#
523 my $b_ = $ob->refcnt;#d#
524 my $pl_ref = $pl->refcnt_cnt;
525 my $ob_ref = $ob->refcnt_cnt;
526
527 ## pl_ref == one from object + one from cf::PLAYER
528 ## ob_ref == one from simply being an object
529 if ($pl_ref == 2 && $ob_ref == 1) {
530 warn "player-scheduler destroy ", $ob->name;#d#
531
532 # remove from sight and get fresh "copies"
533 $pl = delete $cf::PLAYER{$ob->name};
534 $ob = $pl->ob;
535
536 $ob->destroy;
537 $pl->destroy;
538 } else {
539 warn "player-scheduler refcnt ", $ob->name, " $pl_ref,$a_ $ob_ref,$b_\n";#d#
540 }
541 }
542 }
543 };
544 warn $@ if $@;
545 Coro::cede;
546 };
547 }
548 };
549
550 $SCHEDULER->prio (1);
551