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/cvs/deliantra/server/ext/login.ext
Revision: 1.27
Committed: Mon Jan 22 03:44:41 2007 UTC (17 years, 4 months ago) by root
Branch: MAIN
Changes since 1.26: +2 -1 lines
Log Message:
there is a weird bug in Event or perl or... add some wrokarounds

File Contents

# Content
1 #! perl # MANDATORY
2
3 # login handling
4
5 use Fcntl;
6 use Coro::AIO;
7
8 my $PLAYERDIR = sprintf "%s/%s", cf::localdir, cf::playerdir;
9
10 # paranoia function to overwrite a string-in-place
11 sub nuke_str {
12 substr $_[0], 0, (length $_[0]), "x" x length $_[0]
13 }
14
15 sub query {
16 my ($ns, $flags, $text) = @_;
17
18 my $current = $Coro::current;
19 $ns->query ($flags, $text, sub { $current->ready; $current = $_[0]; });
20 Coro::schedule while ref $current;
21
22 $current
23 }
24
25 sub can_cleanup {
26 my ($pl, $mtime) = @_;
27
28 my $age = time - $mtime;
29 my $level = $pl->ob->level;
30
31 ($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
32 || ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
33 || ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
34 || $age > 700 * 86400 # 2 years for everybody else
35 }
36
37 sub check_playing {
38 my ($ns, $user) = @_;
39
40 return unless cf::player::find_active $user;
41
42 $ns->send_drawinfo (
43 "That player is already logged in on this server. "
44 . "If you want to create a new player, choose another name. "
45 . "If you are already a registered player, make sure nobody "
46 . "else is using your account at this time. If you lost your conenction "
47 . "then the server will likely timeout within a minute. If you still "
48 . "cannot log-in after a minute, you are still logged in. Make sure "
49 . "you do not have another client running. If you use windows, reboot, "
50 . "this will fix anything.",
51 cf::NDI_RED
52 );
53
54 1
55 }
56
57 sub check_clean_save {
58 my ($pl) = @_;
59
60 if (my $time = delete $pl->{unclean_save}) {
61 $pl->ns->send_drawinfo (
62 "You didn't use a savebed to leave this realm. This is very dangerous, "
63 . "as lots of things could happen when you leave by other means, such as cave-ins, "
64 . "or monsters suddenly snapping your body. Better use a savebed next time.",
65 cf::NDI_RED
66 );
67 #d#TODO
68 }
69 }
70
71 # delete a player directory, be non-blocking AND synchronous...
72 # (thats hard, so we crap out and fork).
73 sub nuke_playerdir {
74 my ($user) = @_;
75
76 aio_stat "$PLAYERDIR/$user";
77 system "cd \Q$PLAYERDIR\E "
78 . "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
79 . "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
80 }
81
82 sub addme {
83 my ($ns) = @_;
84
85 $ns->destroy if $ns->pl;
86
87 $ns->async (sub {
88 my ($user, $pass);
89
90 $ns->send_packet ("addme_success");
91
92 for (;;) {
93 $ns->send_drawinfo (
94 "Please enter your username now. If you are a new user, "
95 . "make one up that describes your character best. "
96 . "Only letters and digits are allowed, though.",
97 cf::NDI_BLUE
98 );
99
100 # read username
101 while () {
102 $user = query $ns, 0, "What is your name?\n:";
103
104 if ($cf::LOGIN_LOCK{$user}) {
105 $ns->send_drawinfo (
106 "That username is currently used in another login session. "
107 . "Chose another, or wait till the other session has ended.",
108 cf::NDI_RED
109 );
110 } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}$/) {
111 last;
112 } else {
113 $ns->send_drawinfo (
114 "Your username contains illegal characters "
115 . "(only a-z, A-Z and 0-9 are allowed), "
116 . "or is not between 3 and 18 characters in length.",
117 cf::NDI_RED
118 );
119 }
120 }
121
122 check_playing $ns, $user and next;
123
124 $ns->send_drawinfo (
125 "Welcome $user, please enter your password now. "
126 . "New users should now choose a password. "
127 . "Anything your client lets you enter is fine.",
128 cf::NDI_BLUE
129 );
130
131 # read password
132 while () {
133 $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
134 last if $pass =~ /.../;
135 $ns->send_drawinfo (
136 "Try to use at least three characters as your password please, "
137 . "that cannot be too much to ask for :)",
138 cf::NDI_RED
139 );
140 }
141
142 # lock this username for the remainder of this login session
143 if ($cf::LOGIN_LOCK{$user}) {
144 $ns->send_drawinfo (
145 "That username is currently used in another login session. "
146 . "Chose another, or wait till the other session has ended.",
147 cf::NDI_RED
148 );
149 next;
150 }
151 local $cf::LOGIN_LOCK{$user} = 1;
152
153 check_playing $ns, $user and next;
154
155 # try to read the user file and check the password
156 if (my $pl = cf::player::find $user) {
157 aio_stat $pl->path and next;
158 my $mtime = (stat _)[9];
159 my $hash = $pl->password;
160
161 if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
162 nuke_str $pass;
163 # password matches, wonderful
164 my $pl = cf::player::find $user or next;
165 $pl->connect ($ns);
166 check_clean_save $pl;
167 last;
168 } elsif (can_cleanup $pl, $mtime) {
169 Coro::Timer::sleep 1;
170
171 $ns->send_drawinfo (
172 "Player exists, but password does not match. If this is your account, "
173 . "please try again. If not, you can now decide to take over this account "
174 . "because it has not been in-use for some time.",
175 cf::NDI_RED
176 );
177
178 #TODO: nuke_str
179 (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
180 or next;
181
182 # check if the file hasn't changed
183 aio_stat cf::player::path $user and next;
184 $mtime == (stat _)[9] or next;
185
186 $pl->quit_character;
187
188 # fall through to creation
189 } else {
190 nuke_str $pass;
191
192 Coro::Timer::sleep 1;
193
194 $ns->send_drawinfo (
195 "Wrong username or password. Please try again "
196 . "(check for Numlock and other semi-obvious error sources).",
197 cf::NDI_RED
198 );
199 next;
200 }
201 }
202
203 # the rest of this function is character creation
204
205 # just to make sure nothing is left over
206 nuke_playerdir $user;
207
208 my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
209
210 if ($pass2 ne $pass) {
211 nuke_str $pass;
212 nuke_str $pass2;
213 $ns->send_drawinfo (
214 "The passwords do not match, please try again.",
215 cf::NDI_RED
216 );
217 next;
218 }
219
220 nuke_str $pass2;
221
222 my $pl = cf::player::new $user;
223 $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
224 nuke_str $pass;
225 $pl->connect ($ns);
226
227 my $ob = $pl->ob;
228
229 while () {
230 $ob->update_stats;
231 $pl->save_stats;
232
233 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
234 "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
235
236 if ($res =~ /^[Nn]/) {
237 last;
238 } elsif ($res > 0 && $res <= 7) {
239 my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
240
241 if ($swap > 0 && $swap <= 7) {
242 $ob->swap_stats ($res - 1, $swap - 1);
243 }
244 } else {
245 $ob->roll_stats;
246 }
247 }
248
249 $ob->set_animation (2);
250 $ob->add_statbonus;
251
252 $ns->send_drawinfo ($ob->msg, cf::NDI_BLUE);
253 $ns->send_packet (sprintf "query %d %s", cf::CS_QUERY_SINGLECHAR,
254 "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n");
255
256 $ns->state (cf::ST_CHANGE_CLASS);
257 delete $pl->{deny_save};#d# too early
258
259 last;
260 }
261 });
262 }
263
264 cf::register_command quit => sub {
265 my ($ob, $arg) = @_;
266
267 $ob->reply (undef,
268 "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
269 . "If you are sure you want to do this, then use the quit_character command instead of quit.",
270 cf::NDI_UNIQUE | cf::NDI_RED);
271 };
272
273 cf::register_command quit_character => sub {
274 my ($ob, $arg) = @_;
275
276 my $pl = $ob->contr;
277
278 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
279 if ($_[0] !~ /^[yY]/) {
280 $ob->reply (undef,
281 "Ok, not not quitting then.",
282 cf::NDI_UNIQUE | cf::NDI_RED);
283 } else {
284 $ob->reply (undef,
285 "Ok, quitting, hope to see you again.",
286 cf::NDI_UNIQUE | cf::NDI_RED);
287 $pl->ns->flush;
288 $pl->quit_character;
289 }
290 });
291 };
292
293 cf::object->attach (
294 type => cf::SAVEBED,
295 on_apply => sub {
296 my ($bed, $ob) = @_;
297
298 return cf::override 0 unless $ob->type == cf::PLAYER;
299
300 my $pl = $ob->contr;
301
302 # update respawn position
303 $pl->savebed ($bed->map->path, $bed->x, $bed->y);
304 cf::async { $pl->save };
305
306 $pl->killer ("left");
307 $ob->check_score;
308
309 $ob->reply (undef, "In the future, you will wake up here when you die.");
310
311 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
312 if ($_[0] !~ /^[yY]/) {
313 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
314 $pl->deactivate;
315 $pl->ns->destroy;
316 } else {
317 cf::async { $pl->save };
318 }
319 });
320 },
321 );
322
323 cf::player->attach (
324 on_login => sub {
325 my ($pl) = @_;
326 my $name = $pl->ob->name;
327
328 $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
329 },
330 on_logout => sub {
331 my ($pl, $cleanly) = @_;
332 my $name = $pl->ob->name;
333
334 if ($cleanly) {
335 $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
336 } else {
337 $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
338 $pl->{unclean_save} = $cf::RUNTIME;
339 }
340 },
341 );
342
343 cf::client->attach (
344 on_addme => \&addme,
345 );
346
347 #############################################################################
348
349 our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
350 our $SAVE_TIMEOUT = 20; # save players every n seconds
351
352 our $SCHEDULER = cf::async_ext {
353 my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
354 while () {
355 $schedule_interval->next;
356
357 # this weird form of iteration over values is used because
358 # the hash changes underneath us frequently, and for
359 # keeps a direct reference to the value without (in 5.8 perls)
360 # keeping a reference, so this is prone to crashes or worse.
361 my @players = keys %cf::PLAYER;
362 for (@players) {
363 my $pl = $cf::PLAYER{$_}
364 or next;
365 $pl->valid or next;
366
367 eval {
368 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
369 $cf::WAIT_FOR_TICK_ONE->wait;
370 $pl->save;
371
372 unless ($pl->active) {
373 # check refcounts, this is tricky and needs to be adjusted to fit server internals
374 my $ob = $pl->ob;
375 Scalar::Util::weaken $pl;
376 Scalar::Util::weaken $ob;
377 my $a_ = $pl->refcnt;#d#
378 my $b_ = $ob->refcnt;#d#
379 my $pl_ref = $pl->refcnt_cnt;
380 my $ob_ref = $ob->refcnt_cnt;
381
382 ## pl_ref == one from object + one from cf::PLAYER
383 ## ob_ref == one from simply being an object
384 if ($pl_ref == 2 && $ob_ref == 1) {
385 warn "player-scheduler destroy ", $ob->name;#d#
386
387 # remove from sight and get fresh "copies"
388 $pl = delete $cf::PLAYER{$ob->name};
389 $ob = $pl->ob;
390
391 $ob->destroy;
392 $pl->destroy;
393 } else {
394 warn "player-scheduler refcnt ", $ob->name, " $pl_ref,$a_ $ob_ref,$b_\n";#d#
395 }
396 }
397 }
398 };
399 warn $@ if $@;
400 Coro::cede;
401 };
402 }
403 };
404
405 $SCHEDULER->prio (1);
406