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/cvs/deliantra/server/ext/login.ext
Revision: 1.48
Committed: Sat May 26 15:44:03 2007 UTC (17 years ago) by root
Branch: MAIN
CVS Tags: rel-2_1
Changes since 1.47: +37 -10 lines
Log Message:
- restore after combined mainboard+harddisk crash
- cleanup/fixes for 2.1 release
- fix invoke to actually do work
- refactor invoke shortcuts, gcc cannot inline
  varargs functions.
- optimised invoke to 4-5 insns in the common case.
- optimised (For no good reason) the int-to-ascii
  conversions of dynbuf_text into division-less and
  branchless code (of which I am pretty proud).
- actually move players to their savebed when they did
  not use one and the map has been reste in the meantime.
  does not kill (yet) when too long.
- enter_map is now handled completely in perl.
- goto is now using generation counting to ensure that only the
  most-recently-issues goto will succeed.
- make some heavy use of __builtin_expect to streamline
  rare callbacks even more.
- optimised thawer.

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 # paranoia function to overwrite a string-in-place
10 sub nuke_str {
11 substr $_[0], 0, (length $_[0]), "x" x length $_[0]
12 }
13
14 sub query {
15 my ($ns, $flags, $text) = @_;
16
17 my $current = $Coro::current;
18 $ns->query ($flags, $text, sub { $current->ready; $current = $_[0] });
19 Coro::schedule while ref $current;
20
21 $current
22 }
23
24 sub can_cleanup {
25 my ($pl, $mtime) = @_;
26
27 my $age = time - $mtime;
28 my $level = $pl->ob->level;
29
30 ($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
31 || ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
32 || ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
33 || $age > 700 * 86400 # 2 years for everybody else
34 }
35
36 sub check_playing {
37 my ($ns, $user) = @_;
38
39 return unless cf::player::find_active $user;
40
41 $ns->send_drawinfo (
42 "That player is already logged in on this server. "
43 . "If you want to create a new player, choose another name. "
44 . "If you are already a registered player, make sure nobody "
45 . "else is using your account at this time. If you lost your conenction "
46 . "then the server will likely timeout within a minute. If you still "
47 . "cannot log-in after a minute, you are still logged in. Make sure "
48 . "you do not have another client running. If you use windows, reboot, "
49 . "this will fix anything.",
50 cf::NDI_RED
51 );
52
53 1
54 }
55
56 sub enter_map {
57 my ($pl) = @_;
58
59 my ($map, $x, $y)
60 = $pl->ob->{_link_pos}
61 ? @{delete $pl->ob->{_link_pos}}
62 : ($pl->maplevel, $pl->ob->x, $pl->ob->y);
63
64 $pl->ob->enter_link;
65
66 if (my $time = delete $pl->{unclean_save}) {
67 if (my $m = cf::map::find $map) {
68 if ($time < $m->{instantiate_time}) {
69 # the map was reset in the meantime
70 my $age = $cf::RUNTIME - $time;
71 warn $pl->ob->name, " map reset after logout, logout age $age\n";#d#
72
73 # for now, just go back to savebed
74 ($map, $x, $y) = $pl->savebed;
75
76 $pl->ns->send_drawinfo (
77 "You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
78 . "Fortunately, some friendly dwellers found you, checked your passport, and brought you to safety. "
79 . "Better use a savebed next time, much worse things could have happened...",
80 cf::NDI_RED
81 );
82 } else {
83 $pl->ns->send_drawinfo (
84 "You didn't use a bed to reality to leave this realm. This is very dangerous, "
85 . "as lots of things could happen when you leave by other means, such as cave-ins, "
86 . "or monsters suddenly snapping your body. Better use a savebed next time.",
87 cf::NDI_RED
88 );
89 }
90 }
91 }
92
93 $pl->ob->goto ($map, $x, $y);
94 }
95
96 # delete a player directory, be non-blocking AND synchronous...
97 # (thats hard, so we crap out and fork).
98 sub nuke_playerdir {
99 my ($user) = @_;
100
101 aio_stat "$PLAYERDIR/$user";
102 system "cd \Q$PLAYERDIR\E "
103 . "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
104 . "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
105 }
106
107 sub send_capabilities {
108 my ($ns) = @_;
109
110 return unless $ns->extcmd;
111
112 $ns->ext_event (capabilities =>
113 # id, name, flags (1 == 2d), edge length
114 tileset => [[1, "default 64x64 faceset", 1, 64], [0, "default 32x32 faceset", 1, 32]],
115 );
116 }
117
118 sub setup {
119 my ($ns, $args) = @_;
120
121 # run through the cmds of setup
122 # syntax is setup <cmdname1> <parameter> <cmdname2> <parameter> ...
123 #
124 # we send the status of the cmd back, or a FALSE is the cmd is the server unknown
125 # The client then must sort this out
126
127 my %setup = split / +/, $args;
128 while (my ($k, $v) = each %setup) {
129 if ($k eq "sound") {
130 $ns->sound ($v);
131
132 } elsif ($k eq "exp64") {
133 $setup{$k} = 1;
134
135 } elsif ($k eq "spellmon") {
136 $ns->monitor_spells ($v);
137
138 } elsif ($k eq "darkness") {
139 $ns->darkness ($v);
140
141 } elsif ($k eq "map1cmd") {
142 $ns->mapmode (cf::Map1Cmd) if $v > 0;
143
144 } elsif ($k eq "map1acmd") {
145 $ns->mapmode (cf::Map1aCmd) if $v > 0;
146
147 } elsif ($k eq "map2cmd") {
148 # gcfclient bug, map1acmd is sent too late
149 $ns->mapmode (cf::Map1aCmd);
150 $setup{$k} = "FALSE";
151
152 } elsif ($k eq "newmapcmd") {
153 $ns->newmapcmd ($v);
154
155 } elsif ($k eq "mapinfocmd") {
156 $ns->mapinfocmd ($v);
157
158 } elsif ($k eq "extcmd") {
159 $ns->extcmd ($v > 0);
160 send_capabilities $ns;
161
162 } elsif ($k eq "extmap") {
163 $ns->extmap ($v);
164
165 } elsif ($k eq "facecache") {
166 if (!$v) {
167 $v = 1;
168 $setup{$k} = $v;
169 $ns->send_drawinfo ("(trying to forcefully enable facecaching)", cf::NDI_RED);
170 }
171
172 $ns->facecache ($v);
173
174 } elsif ($k eq "faceset") {
175 $ns->faceset (0);
176 $setup{$k} = 0;
177 # $ns->image2 (1)
178
179 } elsif ($k eq "tileset") {
180 $setup{$k} = $ns->faceset ($v & 1);
181
182 } elsif ($k eq "itemcmd") {
183 # Version of the item protocol command to use. Currently,
184 # only supported versions are 1 and 2. Using a numeric
185 # value will make it very easy to extend this in the future.
186 $ns->itemcmd ($v) if $v >= 1 && $v <= 2;
187
188 $setup{$k} = $ns->itemcmd;
189
190 } elsif ($k eq "mapsize") {
191 my ($x, $y) = split /x/, $v;
192
193 $ns->mapx ($x = max 9, min cf::MAP_CLIENT_X, ($x - 1) | 1);
194 $ns->mapy ($y = max 9, min cf::MAP_CLIENT_Y, ($y - 1) | 1);
195
196 $setup{$k} = "${x}x${y}";
197
198 } elsif ($k eq "extendedMapInfos") {
199 $ns->ext_mapinfos ($v);
200
201 } elsif ($k eq "extendedTextInfos") {
202 $ns->has_readable_type ($v);
203
204 } elsif ($k eq "smoothing") { # cfplus-style smoothing
205 $ns->smoothing ($v);
206
207 } elsif ($k eq "fxix") {
208 $ns->fxix ($v);
209
210 } elsif ($k eq "msg") {
211 $ns->can_msg ($v);
212
213 } elsif ($k eq "excmd") {
214 # we support it
215
216 } else {
217 # other commands:
218 # sexp: no idea, probably for oudated servers
219 # tick: more stupidity, server should send a tick per tick
220
221 $setup{$k} = "FALSE";
222 }
223 }
224
225 $ns->send_packet (join " ", setup => %setup);
226
227 cf::datalog setup =>
228 request => $args,
229 reply => \%setup,
230 client => $ns->version,
231 ;
232 }
233
234 sub addme {
235 my ($ns) = @_;
236
237 if (!$ns->facecache)
238 {
239 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
240
241
242 ***
243 *** WARNING:
244 *** Your client does not support face/image caching,
245 *** or it has been disabled. Face caching is mandatory
246 *** so please enable it or use a newer client.
247 ***
248 *** Look at your client preferences:
249 ***
250 *** CFPlus: all known versions automatically enable the facecache.
251 *** cfclient: use the -cache commandline option.
252 *** cfclient: map will not redraw automatically (bug).
253 *** gcfclient: use -cache commandline option, or enable
254 *** gcfclient: Client=>Configure=>Map & Image=>Cache Images.
255 *** jcrossclient: your client is broken, use CFPlus or gcfclient.
256 ***
257 ***
258 EOF
259 if ($ns->version =~ /jcrossclient/) {
260 # let them, for now
261 } else {
262 $ns->flush;
263 return $ns->destroy;
264 }
265
266 # $ns->facecache = true;
267 }
268
269 if ($ns->mapmode < cf::Map1aCmd) {
270 $ns->send_drawinfo (<<EOF, cf::NDI_RED);
271
272
273 ***
274 *** WARNING:
275 *** Your client is too old. Please upgrade to a newer version.
276 EOF
277
278 $ns->flush;
279 return $ns->destroy;
280 }
281
282 $ns->pl and return $ns->destroy;
283
284 $ns->async (sub {
285 my ($user, $pass);
286
287 $ns->send_packet ("addme_success");
288
289 for (;;) {
290 $ns->send_drawinfo (
291 "Please enter your username now. If you are a new user, "
292 . "make one up that describes your character best. "
293 . "Only letters and digits are allowed, though.",
294 cf::NDI_BLUE
295 );
296
297 # read username
298 while () {
299 $user = query $ns, 0, "What is your name?\n:";
300
301 if ($cf::LOGIN_LOCK{$user}) {
302 $ns->send_drawinfo (
303 "That username is currently used in another login session. "
304 . "Chose another, or wait till the other session has ended.",
305 cf::NDI_RED
306 );
307 } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
308 last;
309 } else {
310 $ns->send_drawinfo (
311 "Your username contains illegal characters "
312 . "(only a-z, A-Z and 0-9 are allowed), "
313 . "or is not between 3 and 18 characters in length.",
314 cf::NDI_RED
315 );
316 }
317 }
318
319 check_playing $ns, $user and next;
320
321 $ns->send_drawinfo (
322 "Welcome $user, please enter your password now. "
323 . "New users should now choose a password. "
324 . "Anything your client lets you enter is fine.",
325 cf::NDI_BLUE
326 );
327
328 # read password
329 while () {
330 $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
331 last if $pass =~ /.../;
332 $ns->send_drawinfo (
333 "Try to use at least three characters as your password please, "
334 . "that cannot be too much to ask for :)",
335 cf::NDI_RED
336 );
337 }
338
339 # lock this username for the remainder of this login session
340 if ($cf::LOGIN_LOCK{$user}) {
341 $ns->send_drawinfo (
342 "That username is currently used in another login session. "
343 . "Chose another, or wait till the other session has ended.",
344 cf::NDI_RED
345 );
346 next;
347 }
348 local $cf::LOGIN_LOCK{$user} = 1;
349
350 check_playing $ns, $user and next;
351
352 # try to read the user file and check the password
353 if (my $pl = cf::player::find $user) {
354 aio_stat $pl->path and next;
355 my $mtime = (stat _)[9];
356 my $hash = $pl->password;
357
358 if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
359 nuke_str $pass;
360 # password matches, wonderful
361 my $pl = cf::player::find $user or next;
362 $pl->connect ($ns);
363 enter_map $pl;
364 last;
365 } elsif (can_cleanup $pl, $mtime) {
366 Coro::Timer::sleep 1;
367
368 $ns->send_drawinfo (
369 "Player exists, but password does not match. If this is your account, "
370 . "please try again. If not, you can now decide to take over this account "
371 . "because it has not been in-use for some time.",
372 cf::NDI_RED
373 );
374
375 #TODO: nuke_str
376 (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
377 or next;
378
379 # check if the file hasn't changed
380 aio_stat cf::player::path $user and next;
381 $mtime == (stat _)[9] or next;
382
383 $pl->quit_character;
384
385 # fall through to creation
386 } else {
387 nuke_str $pass;
388
389 Coro::Timer::sleep 1;
390
391 $ns->send_drawinfo (
392 "Wrong username or password. Please try again "
393 . "(check for Numlock and other semi-obvious error sources).",
394 cf::NDI_RED
395 );
396 next;
397 }
398 } else {
399 # unable to load the playerfile:
400 # check wether the player dir exists, which means the file is corrupted or
401 # something very similar.
402 if (!aio_stat cf::player::playerdir $user) {
403 $ns->send_drawinfo (
404 "Unable to retrieve this player. It might be a locked or broken account. "
405 . "If this is your account, ask a dungeon master for assistance. "
406 . "Otherwise choose a different login name.",
407 cf::NDI_RED
408 );
409 next;
410 }
411 }
412
413 # the rest of this function is character creation
414
415 # just to make sure nothing is left over
416 nuke_playerdir $user;
417
418 my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
419
420 if ($pass2 ne $pass) {
421 nuke_str $pass;
422 nuke_str $pass2;
423 $ns->send_drawinfo (
424 "The passwords do not match, please try again.",
425 cf::NDI_RED
426 );
427 next;
428 }
429
430 nuke_str $pass2;
431
432 my $pl = cf::player::new $user;
433 $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
434 nuke_str $pass;
435 $pl->connect ($ns);
436 my $ob = $pl->ob;
437
438 $ob->goto ($pl->maplevel, $ob->x, $ob->y);
439
440 while () {
441 $ob->update_stats;
442 $pl->save_stats;
443
444 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
445 "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
446
447 if ($res =~ /^[Nn]/) {
448 last;
449 } elsif ($res > 0 && $res <= 7) {
450 my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
451
452 if ($swap > 0 && $swap <= 7) {
453 $ob->swap_stats ($res - 1, $swap - 1);
454 }
455 } else {
456 $ob->roll_stats;
457 }
458 }
459
460 $ob->set_animation (2);
461 $ob->add_statbonus;
462
463 while () {
464 $ns->send_msg (-1, "chargen-race-title", ucfirst $pl->title);
465 my $msg = $ob->msg;
466 $msg =~ s/(?<=\S)\n(?=\S)/ /g;
467 $ns->send_msg (cf::NDI_BLUE, "chargen-race-description", $msg);
468
469 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
470 "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n";
471
472 last if $res =~ /[dD]/;
473
474 $pl->chargen_race_next;
475 }
476
477 $pl->chargen_race_done;
478
479 delete $pl->{deny_save};
480
481 last;
482 }
483 });
484 }
485
486 cf::register_command quit => sub {
487 my ($ob, $arg) = @_;
488
489 $ob->reply (undef,
490 "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
491 . "If you are sure you want to do this, then use the quit_character command instead of quit.",
492 cf::NDI_UNIQUE | cf::NDI_RED);
493 };
494
495 cf::register_command quit_character => sub {
496 my ($ob, $arg) = @_;
497
498 my $pl = $ob->contr;
499
500 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
501 if ($_[0] !~ /^[yY]/) {
502 $ob->reply (undef,
503 "Ok, not not quitting then.",
504 cf::NDI_UNIQUE | cf::NDI_RED);
505 } else {
506 $ob->reply (undef,
507 "Ok, quitting, hope to see you again.",
508 cf::NDI_UNIQUE | cf::NDI_RED);
509 $pl->ns->flush;
510 cf::async { $pl->quit_character };
511 }
512 });
513 };
514
515 cf::object->attach (
516 type => cf::SAVEBED,
517 on_apply => sub {
518 my ($bed, $ob) = @_;
519
520 return cf::override 0 unless $ob->type == cf::PLAYER;
521
522 my $pl = $ob->contr;
523
524 # update respawn position
525 $pl->savebed ($bed->map->path, $bed->x, $bed->y);
526 cf::async { $pl->save };
527
528 $pl->killer ("left");
529 $ob->check_score;
530
531 $ob->reply (undef, "In the future, you will wake up here when you die.");
532
533 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
534 if ($_[0] !~ /^[yY]/) {
535 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
536 $pl->deactivate;
537 $pl->ns->destroy;
538 } else {
539 cf::async { $pl->save };
540 }
541 });
542 },
543 );
544
545 cf::player->attach (
546 on_login => sub {
547 my ($pl) = @_;
548 my $name = $pl->ob->name;
549
550 $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
551 },
552 on_logout => sub {
553 my ($pl, $cleanly) = @_;
554 my $name = $pl->ob->name;
555
556 if ($cleanly) {
557 $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
558 } else {
559 $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
560 $pl->{unclean_save} = $cf::RUNTIME;
561 }
562 },
563 );
564
565 cf::client->attach (
566 on_addme => \&addme,
567 on_setup => \&setup,
568 );
569
570 #############################################################################
571
572 our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
573 our $SAVE_TIMEOUT = 20; # save players every n seconds
574
575 our $SCHEDULER = cf::async_ext {
576 my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
577 while () {
578 $schedule_interval->next;
579
580 # this weird form of iteration over values is used because
581 # the hash changes underneath us frequently, and for
582 # keeps a direct reference to the value without (in 5.8 perls)
583 # keeping a reference, so this is prone to crashes or worse.
584 my @players = keys %cf::PLAYER;
585 for (@players) {
586 my $pl = $cf::PLAYER{$_}
587 or next;
588 $pl->valid or next;
589
590 eval {
591 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
592 cf::wait_for_tick_begin;
593 $pl->save;
594
595 unless ($pl->active) {
596 # check refcounts, this is tricky and needs to be adjusted to fit server internals
597 my $ob = $pl->ob;
598 Scalar::Util::weaken $pl;
599 Scalar::Util::weaken $ob;
600 my $a_ = $pl->refcnt;#d#
601 my $b_ = $ob->refcnt;#d#
602 my $pl_ref = $pl->refcnt_cnt;
603 my $ob_ref = $ob->refcnt_cnt;
604
605 ## pl_ref == one from object + one from cf::PLAYER
606 ## ob_ref == one from simply being an object
607 if ($pl_ref == 2 && $ob_ref == 1) {
608 warn "player-scheduler destroy ", $ob->name;#d#
609
610 # remove from sight and get fresh "copies"
611 $pl = delete $cf::PLAYER{$ob->name};
612 $ob = $pl->ob;
613
614 $ob->destroy;
615 $pl->destroy;
616 } else {
617 warn "player-scheduler refcnt ", $ob->name, " pp$pl_ref,pc$a_ op$ob_ref,oc$b_\n";#d#
618 }
619 }
620 }
621 };
622 warn $@ if $@;
623 Coro::cede;
624 };
625 }
626 };
627
628 $SCHEDULER->prio (1);
629