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/cvs/deliantra/server/ext/login.ext
Revision: 1.32
Committed: Mon Apr 2 18:04:45 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.31: +125 -1 lines
Log Message:
moved setup to perlspace to facilitate easier extensions and some cleanups. feels more secure, too

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