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/cvs/deliantra/server/ext/login.ext
Revision: 1.43
Committed: Mon Apr 23 18:09:57 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.42: +44 -41 lines
Log Message:
- add format utility function.
- split dynbuf into dynbuf and dynbuf_text.
- use dynbuf_text for examine strings instead of
  outputting each line seperately. tried to use stringstreams
  but they add insane overheads (as does std::string, but less so).

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