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/cvs/deliantra/server/ext/login.ext
Revision: 1.19
Committed: Mon Jan 8 19:25:53 2007 UTC (17 years, 4 months ago) by root
Branch: MAIN
Changes since 1.18: +14 -16 lines
Log Message:
- bugfixes, bugfixes, bugfixes

File Contents

# Content
1 #! perl
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 unless (delete $pl->{clean_save}) {
61 #d#TODO
62 }
63 }
64
65 # delete a player directory, be non-blocking AND synchronous...
66 # (thats hard, so we crap out and fork).
67 sub nuke_playerdir {
68 my ($user) = @_;
69
70 aio_stat "$PLAYERDIR/$user";
71 system "cd \Q$PLAYERDIR\E "
72 . "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
73 . "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
74 }
75
76 sub addme {
77 my ($ns) = @_;
78
79 $ns->destroy if $ns->pl;
80
81 $ns->async (sub {
82 my ($user, $pass);
83
84 $ns->send_packet ("addme_success");
85
86 for (;;) {
87 $ns->send_drawinfo (
88 "Please enter your username now. If you are a new user, "
89 . "make one up that describes your character best. "
90 . "Only letters and digits are allowed, though.",
91 cf::NDI_BLUE
92 );
93
94 # read username
95 while () {
96 $user = query $ns, 0, "What is your name?\n:";
97
98 if ($cf::LOGIN_LOCK{$user}) {
99 $ns->send_drawinfo (
100 "That username is currently used in another login session. "
101 . "Chose another, or wait till the other session has ended.",
102 cf::NDI_RED
103 );
104 } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}$/) {
105 last;
106 } else {
107 $ns->send_drawinfo (
108 "Your username contains illegal characters "
109 . "(only a-z, A-Z and 0-9 are allowed), "
110 . "or is not between 3 and 18 characters in length.",
111 cf::NDI_RED
112 );
113 }
114 }
115
116 check_playing $ns, $user and next;
117
118 $ns->send_drawinfo (
119 "Welcome $user, please enter your password now. "
120 . "New users should now choose a password. "
121 . "Anything your client lets you enter is fine.",
122 cf::NDI_BLUE
123 );
124
125 # read password
126 while () {
127 $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
128 last if $pass =~ /.../;
129 $ns->send_drawinfo (
130 "Try to use at least three characters as your password please, "
131 . "that cannot be too much to ask for :)",
132 cf::NDI_RED
133 );
134 }
135
136 # lock this username for the remainder of this login session
137 if ($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 next;
144 }
145 local $cf::LOGIN_LOCK{$user} = 1;
146
147 check_playing $ns, $user and next;
148
149 # try to read the user file and check the password
150 if (my $pl = cf::player::find $user) {
151 aio_stat $pl->path and next;
152 my $mtime = (stat _)[9];
153 my $hash = $pl->password;
154
155 if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
156 nuke_str $pass;
157 # password matches, wonderful
158 my $pl = cf::player::find $user or next;
159 $pl->connect ($ns);
160 check_clean_save $pl;
161 $pl->{clean_save} = 1;
162 last;
163 } elsif (can_cleanup $pl, $mtime) {
164 Coro::Timer::sleep 1;
165
166 $ns->send_drawinfo (
167 "Player exists, but password does not match. If this is your account, "
168 . "please try again. If not, you can now decide to take over this account "
169 . "because it has not been in-use for some time.",
170 cf::NDI_RED
171 );
172
173 #TODO: nuke_str
174 (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
175 or next;
176
177 # check if the file hasn't changed
178 aio_stat cf::player::path $user and next;
179 $mtime == (stat _)[9] or next;
180
181 $pl->quit_character;
182
183 # fall through to creation
184 } else {
185 nuke_str $pass;
186
187 Coro::Timer::sleep 1;
188
189 $ns->send_drawinfo (
190 "Wrong username or password. Please try again "
191 . "(check for Numlock and other semi-obvious error sources).",
192 cf::NDI_RED
193 );
194 next;
195 }
196 }
197
198 # the rest of this function is character creation
199
200 # just to make sure nothing is left over
201 nuke_playerdir $user;
202
203 my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
204
205 if ($pass2 ne $pass) {
206 nuke_str $pass;
207 nuke_str $pass2;
208 $ns->send_drawinfo (
209 "The passwords do not match, please try again.",
210 cf::NDI_RED
211 );
212 next;
213 }
214
215 nuke_str $pass2;
216
217 my $pl = cf::player::new $user;
218 $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
219 nuke_str $pass;
220 $pl->connect ($ns);
221
222 my $ob = $pl->ob;
223
224 while () {
225 $ob->update_stats;
226 $pl->save_stats;
227
228 my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
229 "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
230
231 if ($res =~ /^[Nn]/) {
232 last;
233 } elsif ($res > 0 && $res <= 7) {
234 my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
235
236 if ($swap > 0 && $swap <= 7) {
237 $ob->swap_stats ($res - 1, $swap - 1);
238 }
239 } else {
240 $ob->roll_stats;
241 }
242 }
243
244 $ob->set_animation (2);
245 $ob->add_statbonus;
246
247 $ns->send_drawinfo ($ob->msg, cf::NDI_BLUE);
248 $ns->send_packet (sprintf "query %d %s", cf::CS_QUERY_SINGLECHAR,
249 "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n");
250
251 $ns->state (cf::ST_CHANGE_CLASS);
252 delete $pl->{deny_save};#d# too early
253
254 last;
255 }
256 });
257 }
258
259 cf::register_command quit => sub {
260 my ($ob, $arg) = @_;
261
262 $ob->reply (undef,
263 "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
264 . "If you are sure you want to do this, then use the quit_character command instead of quit.",
265 cf::NDI_UNIQUE | cf::NDI_RED);
266 };
267
268 cf::register_command quit_character => sub {
269 my ($ob, $arg) = @_;
270
271 my $pl = $ob->contr;
272
273 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
274 if ($_[0] !~ /^[yY]/) {
275 $ob->reply (undef,
276 "Ok, not not quitting then.",
277 cf::NDI_UNIQUE | cf::NDI_RED);
278 } else {
279 $ob->reply (undef,
280 "Ok, quitting, hope to see you again.",
281 cf::NDI_UNIQUE | cf::NDI_RED);
282 $pl->ns->flush;
283 $pl->quit_character;
284 }
285 });
286 };
287
288 cf::object->attach (
289 type => cf::SAVEBED,
290 on_apply => sub {
291 my ($bed, $ob) = @_;
292
293 return cf::override 0 unless $ob->type == cf::PLAYER;
294
295 my $pl = $ob->contr;
296
297 # update respawn position
298 $pl->savebed ($bed->map->path, $bed->x, $bed->y);
299
300 $pl->killer ("left");
301 $ob->check_score;
302
303 $ob->reply (undef, "In the future, you will wake up here when you die.");
304
305 $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
306 if ($_[0] !~ /^[yY]/) {
307 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
308 $pl->deactivate;
309 $pl->ns->destroy;
310 } else {
311 cf::async { $pl->save };
312 }
313 });
314 },
315 );
316
317 cf::player->attach (
318 on_login => sub {
319 my ($pl) = @_;
320 my $name = $pl->ob->name;
321
322 $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
323 },
324 on_logout => sub {
325 my ($pl, $cleanly) = @_;
326 my $name = $pl->ob->name;
327
328 if ($cleanly) {
329 $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
330 } else {
331 $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
332 delete $pl->{clean_save};
333 }
334 },
335 );
336
337 cf::client->attach (
338 on_addme => \&addme,
339 );
340
341 #############################################################################
342
343 our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
344 our $SAVE_TIMEOUT = 200; # save players every n seconds
345 our $SAVE_INTERVAL = 0.1; # save at max. one player every $SAVE_INTERVAL
346
347 our $SCHEDULER = cf::async_ext {
348 while () {
349 Coro::Timer::sleep $SCHEDULE_INTERVAL;
350
351 # this weird form of iteration over values is used because
352 # the hash changes underneath us frequently, and for
353 # keeps a direct reference to the value without (in 5.8 perls)
354 # keeping a reference, so this is prone to crashes or worse.
355 my @players = keys %cf::PLAYER;
356 for (@players) {
357 my $pl = $cf::PLAYER{$_}
358 or next;
359 $pl->valid or next;
360
361 eval {
362 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
363 $pl->save;
364 Coro::Timer::sleep $SAVE_INTERVAL;
365 }
366
367 unless ($pl->active) {
368 # check refcounts, this is tricky and needs to be adjusted to fit server internals
369 my $ob = $pl->ob;
370 Scalar::Util::weaken $pl;
371 Scalar::Util::weaken $ob;
372 my $a_ = $pl->refcnt;
373 my $b_ = $ob->refcnt;
374 my $pl_ref = $pl->refcnt_cnt;
375 my $ob_ref = $ob->refcnt_cnt;
376
377 if ($pl_ref == 2 && $ob_ref == 1) {
378 warn "player-scheduler destroy ", $ob->name;#d#
379 delete $cf::PLAYER{$ob->name};
380 # pl_ref == one from object + one from cf::PLAYER
381 # ob_ref == one from simply being an object
382 $ob->destroy;
383 $pl->destroy;
384 } else {
385 warn "player-scheduler refcnt ", $ob->name, " $pl_ref,$a_ $ob_ref,$b_\n";#d#
386 }
387 }
388 };
389 warn $@ if $@;
390 Coro::cede;
391 };
392 }
393 };
394
395 $SCHEDULER->prio (1);
396