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/cvs/deliantra/server/ext/login.ext
Revision: 1.41
Committed: Tue Apr 17 10:06:33 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.40: +1 -1 lines
Log Message:
cede less often in background tasks while still reducing jittering

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 send_capabilities {
84 my ($ns) = @_;
85
86 return unless $ns->extcmd;
87
88 $ns->ext_event (capabilities =>
89 # id, name, flags (1 == 2d), edge length
90 tileset => [[1, "default 64x64 faceset", 1, 64], [0, "default 32x32 faceset", 1, 32]],
91 );
92 }
93
94 sub setup {
95 my ($ns, $args) = @_;
96
97 # run through the cmds of setup
98 # syntax is setup <cmdname1> <parameter> <cmdname2> <parameter> ...
99 #
100 # we send the status of the cmd back, or a FALSE is the cmd is the server unknown
101 # The client then must sort this out
102
103 my %setup = split / +/, $args;
104 while (my ($k, $v) = each %setup) {
105 if ($k eq "sound") {
106 $ns->sound ($v);
107
108 } elsif ($k eq "exp64") {
109 $setup{$k} = 1;
110
111 } elsif ($k eq "spellmon") {
112 $ns->monitor_spells ($v);
113
114 } elsif ($k eq "darkness") {
115 $ns->darkness ($v);
116
117 } elsif ($k eq "map1cmd") {
118 $ns->mapmode (cf::Map1Cmd) if $v > 0;
119
120 } elsif ($k eq "map1acmd") {
121 $ns->mapmode (cf::Map1aCmd) if $v > 0;
122
123 } elsif ($k eq "map2cmd") {
124 # gcfclient bug, map1acmd is sent too late
125 $ns->mapmode (cf::Map1aCmd);
126 $setup{$k} = "FALSE";
127
128 } elsif ($k eq "newmapcmd") {
129 $ns->newmapcmd ($v);
130
131 } elsif ($k eq "mapinfocmd") {
132 $ns->mapinfocmd ($v);
133
134 } elsif ($k eq "extcmd") {
135 $ns->extcmd ($v > 0);
136 send_capabilities $ns;
137
138 } elsif ($k eq "extmap") {
139 $ns->extmap ($v);
140
141 } elsif ($k eq "facecache") {
142 if (!$v) {
143 $v = 1;
144 $setup{$k} = $v;
145 $ns->send_drawinfo ("(trying to forcefully enable facecaching)", cf::NDI_RED);
146 }
147
148 $ns->facecache ($v);
149
150 } elsif ($k eq "faceset") {
151 $ns->faceset (0);
152 $setup{$k} = 0;
153 # $ns->image2 (1)
154
155 } elsif ($k eq "tileset") {
156 $setup{$k} = $ns->faceset ($v & 1);
157
158 } elsif ($k eq "itemcmd") {
159 # Version of the item protocol command to use. Currently,
160 # only supported versions are 1 and 2. Using a numeric
161 # value will make it very easy to extend this in the future.
162 $ns->itemcmd ($v) if $v >= 1 && $v <= 2;
163
164 $setup{$k} = $ns->itemcmd;
165
166 } elsif ($k eq "mapsize") {
167 my ($x, $y) = split /x/, $v;
168
169 $ns->mapx ($x = max 9, min cf::MAP_CLIENT_X, ($x - 1) | 1);
170 $ns->mapy ($y = max 9, min cf::MAP_CLIENT_Y, ($y - 1) | 1);
171
172 $setup{$k} = "${x}x${y}";
173
174 } elsif ($k eq "extendedMapInfos") {
175 $ns->ext_mapinfos ($v);
176
177 } elsif ($k eq "extendedTextInfos") {
178 $ns->has_readable_type ($v);
179
180 } elsif ($k eq "smoothing") { # cfplus-style smoothing
181 $ns->smoothing ($v);
182
183 } elsif ($k eq "fxix") {
184 $ns->fxix ($v);
185
186 } else {
187 # other commands:
188 # sexp: no idea, probably for oudated servers
189 # tick: more stupidity, server should sned a tick per tick
190
191 $setup{$k} = "FALSE";
192 }
193 }
194
195 $ns->send_packet (join " ", setup => %setup);
196
197 cf::datalog setup =>
198 request => $args,
199 reply => \%setup,
200 client => $ns->version,
201 ;
202 }
203
204 sub addme {
205 my ($ns) = @_;
206
207 if (!$ns->facecache)
208 {
209 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
210
211
212 ***
213 *** WARNING:
214 *** Your client does not support face/image caching,
215 *** or it has been disabled. Face caching is mandatory
216 *** so please enable it or use a newer client.
217 ***
218 *** Look at your client preferences:
219 ***
220 *** CFPlus: all known versions automatically enable the facecache.
221 *** cfclient: use the -cache commandline option.
222 *** cfclient: map will not redraw automatically (bug).
223 *** gcfclient: use -cache commandline option, or enable
224 *** gcfclient: Client=>Configure=>Map & Image=>Cache Images.
225 *** jcrossclient: your client is broken, use CFPlus or gcfclient.
226 ***
227 ***
228 EOF
229 if ($ns->version =~ /jcrossclient/) {
230 # let them, for now
231 } else {
232 $ns->flush;
233 return $ns->destroy;
234 }
235
236 # $ns->facecache = true;
237 }
238
239 if ($ns->mapmode < cf::Map1aCmd) {
240 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
241
242
243 ***
244 *** WARNING:
245 *** Your client is too old. Please upgrade to a newer version.
246 EOF
247
248 $ns->flush;
249 return $ns->destroy;
250 }
251
252 $ns->pl and return $ns->destroy;
253
254 $ns->async (sub {
255 my ($user, $pass);
256
257 $ns->send_packet ("addme_success");
258
259 for (;;) {
260 $ns->send_drawinfo (
261 "Please enter your username now. If you are a new user, "
262 . "make one up that describes your character best. "
263 . "Only letters and digits are allowed, though.",
264 cf::NDI_BLUE
265 );
266
267 # read username
268 while () {
269 $user = query $ns, 0, "What is your name?\n:";
270
271 if ($cf::LOGIN_LOCK{$user}) {
272 $ns->send_drawinfo (
273 "That username is currently used in another login session. "
274 . "Chose another, or wait till the other session has ended.",
275 cf::NDI_RED
276 );
277 } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
278 last;
279 } else {
280 $ns->send_drawinfo (
281 "Your username contains illegal characters "
282 . "(only a-z, A-Z and 0-9 are allowed), "
283 . "or is not between 3 and 18 characters in length.",
284 cf::NDI_RED
285 );
286 }
287 }
288
289 check_playing $ns, $user and next;
290
291 $ns->send_drawinfo (
292 "Welcome $user, please enter your password now. "
293 . "New users should now choose a password. "
294 . "Anything your client lets you enter is fine.",
295 cf::NDI_BLUE
296 );
297
298 # read password
299 while () {
300 $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
301 last if $pass =~ /.../;
302 $ns->send_drawinfo (
303 "Try to use at least three characters as your password please, "
304 . "that cannot be too much to ask for :)",
305 cf::NDI_RED
306 );
307 }
308
309 # lock this username for the remainder of this login session
310 if ($cf::LOGIN_LOCK{$user}) {
311 $ns->send_drawinfo (
312 "That username is currently used in another login session. "
313 . "Chose another, or wait till the other session has ended.",
314 cf::NDI_RED
315 );
316 next;
317 }
318 local $cf::LOGIN_LOCK{$user} = 1;
319
320 check_playing $ns, $user and next;
321
322 # try to read the user file and check the password
323 if (my $pl = cf::player::find $user) {
324 aio_stat $pl->path and next;
325 my $mtime = (stat _)[9];
326 my $hash = $pl->password;
327
328 if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
329 nuke_str $pass;
330 # password matches, wonderful
331 my $pl = cf::player::find $user or next;
332 $pl->connect ($ns);
333 check_clean_save $pl;
334 last;
335 } elsif (can_cleanup $pl, $mtime) {
336 Coro::Timer::sleep 1;
337
338 $ns->send_drawinfo (
339 "Player exists, but password does not match. If this is your account, "
340 . "please try again. If not, you can now decide to take over this account "
341 . "because it has not been in-use for some time.",
342 cf::NDI_RED
343 );
344
345 #TODO: nuke_str
346 (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
347 or next;
348
349 # check if the file hasn't changed
350 aio_stat cf::player::path $user and next;
351 $mtime == (stat _)[9] or next;
352
353 $pl->quit_character;
354
355 # fall through to creation
356 } else {
357 nuke_str $pass;
358
359 Coro::Timer::sleep 1;
360
361 $ns->send_drawinfo (
362 "Wrong username or password. Please try again "
363 . "(check for Numlock and other semi-obvious error sources).",
364 cf::NDI_RED
365 );
366 next;
367 }
368 } else {
369 # unable to load the playerfile:
370 # check wether the player dir exists, which means the file is corrupted or
371 # something very similar.
372 if (!aio_stat cf::player::playerdir $user) {
373 $ns->send_drawinfo (
374 "Unable to retrieve this player. It might be a locked or broken account. "
375 . "If this is your account, ask a dungeon master for assistance. "
376 . "Otherwise choose a different login name.",
377 cf::NDI_RED
378 );
379 next;
380 }
381 }
382
383 # the rest of this function is character creation
384
385 # just to make sure nothing is left over
386 nuke_playerdir $user;
387
388 my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
389
390 if ($pass2 ne $pass) {
391 nuke_str $pass;
392 nuke_str $pass2;
393 $ns->send_drawinfo (
394 "The passwords do not match, please try again.",
395 cf::NDI_RED
396 );
397 next;
398 }
399
400 nuke_str $pass2;
401
402 my $pl = cf::player::new $user;
403 $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
404 nuke_str $pass;
405 $pl->connect ($ns);
406
407 my $ob = $pl->ob;
408
409 while () {
410 $ob->update_stats;
411 $pl->save_stats;
412
413 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
414 "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
415
416 if ($res =~ /^[Nn]/) {
417 last;
418 } elsif ($res > 0 && $res <= 7) {
419 my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
420
421 if ($swap > 0 && $swap <= 7) {
422 $ob->swap_stats ($res - 1, $swap - 1);
423 }
424 } else {
425 $ob->roll_stats;
426 }
427 }
428
429 $ob->set_animation (2);
430 $ob->add_statbonus;
431
432 $ns->send_drawinfo ($ob->msg, cf::NDI_BLUE);
433 $ns->send_packet (sprintf "query %d %s", cf::CS_QUERY_SINGLECHAR,
434 "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n");
435
436 $ns->state (cf::ST_CHANGE_CLASS);
437 delete $pl->{deny_save};#d# too early
438
439 last;
440 }
441 });
442 }
443
444 cf::register_command quit => sub {
445 my ($ob, $arg) = @_;
446
447 $ob->reply (undef,
448 "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
449 . "If you are sure you want to do this, then use the quit_character command instead of quit.",
450 cf::NDI_UNIQUE | cf::NDI_RED);
451 };
452
453 cf::register_command quit_character => sub {
454 my ($ob, $arg) = @_;
455
456 my $pl = $ob->contr;
457
458 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
459 if ($_[0] !~ /^[yY]/) {
460 $ob->reply (undef,
461 "Ok, not not quitting then.",
462 cf::NDI_UNIQUE | cf::NDI_RED);
463 } else {
464 $ob->reply (undef,
465 "Ok, quitting, hope to see you again.",
466 cf::NDI_UNIQUE | cf::NDI_RED);
467 $pl->ns->flush;
468 cf::async { $pl->quit_character };
469 }
470 });
471 };
472
473 cf::object->attach (
474 type => cf::SAVEBED,
475 on_apply => sub {
476 my ($bed, $ob) = @_;
477
478 return cf::override 0 unless $ob->type == cf::PLAYER;
479
480 my $pl = $ob->contr;
481
482 # update respawn position
483 $pl->savebed ($bed->map->path, $bed->x, $bed->y);
484 cf::async { $pl->save };
485
486 $pl->killer ("left");
487 $ob->check_score;
488
489 $ob->reply (undef, "In the future, you will wake up here when you die.");
490
491 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
492 if ($_[0] !~ /^[yY]/) {
493 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
494 $pl->deactivate;
495 $pl->ns->destroy;
496 } else {
497 cf::async { $pl->save };
498 }
499 });
500 },
501 );
502
503 cf::player->attach (
504 on_login => sub {
505 my ($pl) = @_;
506 my $name = $pl->ob->name;
507
508 $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
509 },
510 on_logout => sub {
511 my ($pl, $cleanly) = @_;
512 my $name = $pl->ob->name;
513
514 if ($cleanly) {
515 $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
516 } else {
517 $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
518 $pl->{unclean_save} = $cf::RUNTIME;
519 }
520 },
521 );
522
523 cf::client->attach (
524 on_addme => \&addme,
525 on_setup => \&setup,
526 );
527
528 #############################################################################
529
530 our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
531 our $SAVE_TIMEOUT = 20; # save players every n seconds
532
533 our $SCHEDULER = cf::async_ext {
534 my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
535 while () {
536 $schedule_interval->next;
537
538 # this weird form of iteration over values is used because
539 # the hash changes underneath us frequently, and for
540 # keeps a direct reference to the value without (in 5.8 perls)
541 # keeping a reference, so this is prone to crashes or worse.
542 my @players = keys %cf::PLAYER;
543 for (@players) {
544 my $pl = $cf::PLAYER{$_}
545 or next;
546 $pl->valid or next;
547
548 eval {
549 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
550 cf::wait_for_tick_begin;
551 $pl->save;
552
553 unless ($pl->active) {
554 # check refcounts, this is tricky and needs to be adjusted to fit server internals
555 my $ob = $pl->ob;
556 Scalar::Util::weaken $pl;
557 Scalar::Util::weaken $ob;
558 my $a_ = $pl->refcnt;#d#
559 my $b_ = $ob->refcnt;#d#
560 my $pl_ref = $pl->refcnt_cnt;
561 my $ob_ref = $ob->refcnt_cnt;
562
563 ## pl_ref == one from object + one from cf::PLAYER
564 ## ob_ref == one from simply being an object
565 if ($pl_ref == 2 && $ob_ref == 1) {
566 warn "player-scheduler destroy ", $ob->name;#d#
567
568 # remove from sight and get fresh "copies"
569 $pl = delete $cf::PLAYER{$ob->name};
570 $ob = $pl->ob;
571
572 $ob->destroy;
573 $pl->destroy;
574 } else {
575 warn "player-scheduler refcnt ", $ob->name, " $pl_ref,$a_ $ob_ref,$b_\n";#d#
576 }
577 }
578 }
579 };
580 warn $@ if $@;
581 Coro::cede;
582 };
583 }
584 };
585
586 $SCHEDULER->prio (1);
587