ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/ext/login.ext
Revision: 1.38
Committed: Tue Apr 10 09:35:23 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.37: +4 -1 lines
Log Message:
- implement smoothing in the fxix (or better: fxixsx) protocol.
- this *enforces* that smoothing is *per face* and not *per archetype*.
- no extra bandwidth is needed for map information (unlike in the
  crossfire 1.x protocol, where smoothlevels are per-mapspace
  and take up a lot of bandwidth).
- no extra storage is required on the client-side (although smoothing
  for cached map data is then only available for tiles that have been seen).
- temporarily supply empty_S.x11 smoothfaces again, as this hack is required
  because there is no way to specify a smoothlevel but no smoothface
  otherwise. this should be optimised away at a future point, but this
  will break gcfclient (but disabling smoothing for that might be a good
  compromise).

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