server/ext/login.ext

#! perl # MANDATORY

# login handling

use Fcntl;
use Coro::AIO;

my $PLAYERDIR = sprintf "%s/%s", cf::localdir, cf::playerdir;

# paranoia function to overwrite a string-in-place
sub nuke_str {
   substr $_[0], 0, (length $_[0]), "x" x length $_[0]
}

sub query {
   my ($ns, $flags, $text) = @_;

   my $current = $Coro::current;
   $ns->query ($flags, $text, sub { $current->ready; $current = $_[0]; });
   Coro::schedule while ref $current;

   $current
}

sub can_cleanup {
   my ($pl, $mtime) = @_;

   my $age = time - $mtime;
   my $level = $pl->ob->level;

   ($level <= 3 && $age > 7 * 86400)            # 7 days for level 0..3
   || ($level <= 9 && $age > 90 * 86400)        # 3 months for level 4..9
   || ($level <= 20 && $age > 180 * 86400)      # 6 months for level 10..20
   || $age > 700 * 86400                        # 2 years for everybody else
}

sub check_playing {
   my ($ns, $user) = @_;

   return unless cf::player::find_active $user;

   $ns->send_drawinfo (
      "That player is already logged in on this server. "
    . "If you want to create a new player, choose another name. "
    . "If you are already a registered player, make sure nobody "
    . "else is using your account at this time. If you lost your conenction "
    . "then the server will likely timeout within a minute. If you still "
    . "cannot log-in after a minute, you are still logged in. Make sure "
    . "you do not have another client running. If you use windows, reboot, "
    . "this will fix anything.",
      cf::NDI_RED
   );

   1
}

sub check_clean_save {
   my ($pl) = @_;

   if (my $time = delete $pl->{unclean_save}) {
      $pl->ns->send_drawinfo (
         "You didn't use a savebed to leave this realm. This is very dangerous, "
       . "as lots of things could happen when you leave by other means, such as cave-ins, "
       . "or monsters suddenly snapping your body. Better use a savebed next time.",
         cf::NDI_RED
      );
      #d#TODO
   }
}

# delete a player directory, be non-blocking AND synchronous...
# (thats hard, so we crap out and fork).
sub nuke_playerdir {
   my ($user) = @_;

   aio_stat "$PLAYERDIR/$user";
   system "cd \Q$PLAYERDIR\E "
        . "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
        . "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
}

sub addme {
   my ($ns) = @_;

   $ns->destroy if $ns->pl;

   $ns->async (sub {
      my ($user, $pass);

      $ns->send_packet ("addme_success");

      for (;;) {
         $ns->send_drawinfo (
            "Please enter your username now. If you are a new user, "
          . "make one up that describes your character best. "
          . "Only letters and digits are allowed, though.",
            cf::NDI_BLUE
         );

         # read username
         while () {
            $user = query $ns, 0, "What is your name?\n:";

            if ($cf::LOGIN_LOCK{$user}) {
               $ns->send_drawinfo (
                  "That username is currently used in another login session. "
                . "Chose another, or wait till the other session has ended.",
                  cf::NDI_RED
               );
            } elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
               last;
            } else {
               $ns->send_drawinfo (
                  "Your username contains illegal characters "
                . "(only a-z, A-Z and 0-9 are allowed), "
                . "or is not between 3 and 18 characters in length.",
                  cf::NDI_RED
               );
            }
         }

         check_playing $ns, $user and next;

         $ns->send_drawinfo (
            "Welcome $user, please enter your password now. "
          . "New users should now choose a password. "
          . "Anything your client lets you enter is fine.",
            cf::NDI_BLUE
         );

         # read password
         while () {
            $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
            last if $pass =~ /.../;
            $ns->send_drawinfo (
               "Try to use at least three characters as your password please, "
             . "that cannot be too much to ask for :)",
               cf::NDI_RED
            );
         }

         # lock this username for the remainder of this login session
         if ($cf::LOGIN_LOCK{$user}) {
            $ns->send_drawinfo (
               "That username is currently used in another login session. "
             . "Chose another, or wait till the other session has ended.",
               cf::NDI_RED
            );
            next;
         }
         local $cf::LOGIN_LOCK{$user} = 1;

         check_playing $ns, $user and next;

         # try to read the user file and check the password
         if (my $pl = cf::player::find $user) {
            aio_stat $pl->path and next;
            my $mtime = (stat _)[9];
            my $hash = $pl->password;

            if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
               nuke_str $pass;
               # password matches, wonderful
               my $pl = cf::player::find $user or next;
               $pl->connect ($ns);
               check_clean_save $pl;
               last;
            } elsif (can_cleanup $pl, $mtime) {
               Coro::Timer::sleep 1;

               $ns->send_drawinfo (
                  "Player exists, but password does not match. If this is your account, "
                . "please try again. If not, you can now decide to take over this account "
                . "because it has not been in-use for some time.",
                  cf::NDI_RED
               );

               #TODO: nuke_str
               (query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
                  or next;

               # check if the file hasn't changed
               aio_stat cf::player::path $user and next;
               $mtime == (stat _)[9] or next;

               $pl->quit_character;

               # fall through to creation
            } else {
               nuke_str $pass;

               Coro::Timer::sleep 1;

               $ns->send_drawinfo (
                  "Wrong username or password. Please try again "
                . "(check for Numlock and other semi-obvious error sources).",
                  cf::NDI_RED
               );
               next;
            }
         }

         # the rest of this function is character creation

         # just to make sure nothing is left over
         nuke_playerdir $user;

         my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";

         if ($pass2 ne $pass) {
            nuke_str $pass;
            nuke_str $pass2;
            $ns->send_drawinfo (
               "The passwords do not match, please try again.",
               cf::NDI_RED
            );
            next;
         }

         nuke_str $pass2;

         my $pl = cf::player::new $user;
         $pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
         nuke_str $pass;
         $pl->connect ($ns);

         my $ob = $pl->ob;

         while () {
            $ob->update_stats;
            $pl->save_stats;

            my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
                         "[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";

            if ($res =~ /^[Nn]/) {
               last;
            } elsif ($res > 0 && $res <= 7) {
               my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";

               if ($swap > 0 && $swap <= 7) {
                  $ob->swap_stats ($res - 1, $swap - 1);
               }
            } else {
               $ob->roll_stats;
            }
         }

         $ob->set_animation (2);
         $ob->add_statbonus;

         $ns->send_drawinfo ($ob->msg, cf::NDI_BLUE);
         $ns->send_packet (sprintf "query %d %s", cf::CS_QUERY_SINGLECHAR,
                      "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n");

         $ns->state (cf::ST_CHANGE_CLASS);
         delete $pl->{deny_save};#d# too early

         last;
      }
   });
}

cf::register_command quit => sub {
   my ($ob, $arg) = @_;

   $ob->reply (undef,
               "Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
               . "If you are sure you want to do this, then use the quit_character command instead of quit.",
               cf::NDI_UNIQUE | cf::NDI_RED);
};

cf::register_command quit_character => sub {
   my ($ob, $arg) = @_;

   my $pl = $ob->contr;

   $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
      if ($_[0] !~ /^[yY]/) {
         $ob->reply (undef,
                     "Ok, not not quitting then.",
                     cf::NDI_UNIQUE | cf::NDI_RED);
      } else {
         $ob->reply (undef,
                     "Ok, quitting, hope to see you again.",
                     cf::NDI_UNIQUE | cf::NDI_RED);
         $pl->ns->flush;
         $pl->quit_character;
      }
   });
};

cf::object->attach (
   type     => cf::SAVEBED,
   on_apply => sub {
      my ($bed, $ob) = @_;

      return cf::override 0 unless $ob->type == cf::PLAYER;

      my $pl = $ob->contr;

      # update respawn position
      $pl->savebed ($bed->map->path, $bed->x, $bed->y);
      cf::async { $pl->save };

      $pl->killer ("left");
      $ob->check_score;

      $ob->reply (undef, "In the future, you will wake up here when you die.");

      $pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
         if ($_[0] !~ /^[yY]/) {
            $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
            $pl->deactivate;
            $pl->ns->destroy;
         } else {
            cf::async { $pl->save };
         }
      });
   },
);

cf::player->attach (
   on_login  => sub {
      my ($pl) = @_;
      my $name = $pl->ob->name;

      $_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
   },
   on_logout => sub {
      my ($pl, $cleanly) = @_;
      my $name = $pl->ob->name;

      if ($cleanly) {
         $_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
      } else {
         $_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE | cf::NDI_UNIQUE) for cf::player::list;
         $pl->{unclean_save} = $cf::RUNTIME;
      }
   },
);

cf::client->attach (
   on_addme => \&addme,
);

#############################################################################

our $SCHEDULE_INTERVAL  =  10; # time the player scheduler sleeps between runs
our $SAVE_TIMEOUT       =  20; # save players every n seconds

our $SCHEDULER = cf::async_ext {
   my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
   while () {
      $schedule_interval->next;

      # this weird form of iteration over values is used because
      # the hash changes underneath us frequently, and for
      # keeps a direct reference to the value without (in 5.8 perls)
      # keeping a reference, so this is prone to crashes or worse.
      my @players = keys %cf::PLAYER;
      for (@players) {
         my $pl = $cf::PLAYER{$_}
            or next;
         $pl->valid or next;

         eval {
            if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
               $cf::WAIT_FOR_TICK_ONE->wait;
               $pl->save;

               unless ($pl->active) {
                  # check refcounts, this is tricky and needs to be adjusted to fit server internals
                  my $ob = $pl->ob;
                  Scalar::Util::weaken $pl;
                  Scalar::Util::weaken $ob;
                  my $a_ = $pl->refcnt;#d#
                  my $b_ = $ob->refcnt;#d#
                  my $pl_ref = $pl->refcnt_cnt;
                  my $ob_ref = $ob->refcnt_cnt;

                  ## pl_ref == one from object + one from cf::PLAYER
                  ## ob_ref == one from simply being an object
                  if ($pl_ref == 2 && $ob_ref == 1) {
                     warn "player-scheduler destroy ", $ob->name;#d#

                     # remove from sight and get fresh "copies"
                     $pl = delete $cf::PLAYER{$ob->name};
                     $ob = $pl->ob;

                     $ob->destroy;
                     $pl->destroy;
                  } else {
                     warn "player-scheduler refcnt ", $ob->name, " $pl_ref,$a_ $ob_ref,$b_\n";#d#
                  }
               }
            }
         };
         warn $@ if $@;
         Coro::cede;
      };
   }
};

$SCHEDULER->prio (1);

Revision:	1.30
Committed:	Sun Feb 11 17:47:22 2007 UTC (17 years, 3 months ago) by root
Branch:	MAIN
Changes since 1.29:	+1 -1 lines
Log Message:	- passive knowledge of a feature does not mean you can't actively use it wrongly for years: do use \Z instead of $ for security-relevant stuff (\n was allowed in a login name).
#	User	Rev	Content
1	root	1.25	#! perl # MANDATORY
2	root	1.1
3			# login handling
4
5			use Fcntl;
6			use Coro::AIO;
7
8			my $PLAYERDIR = sprintf "%s/%s", cf::localdir, cf::playerdir;
9
10	root	1.9	# paranoia function to overwrite a string-in-place
11			sub nuke_str {
12			substr $_[0], 0, (length $_[0]), "x" x length $_[0]
13			}
14	root	1.1
15			sub query {
16			my ($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			$current
23			}
24
25			sub can_cleanup {
26	root	1.19	my ($pl, $mtime) = @_;
27	root	1.1
28			my $age = time - $mtime;
29	root	1.19	my $level = $pl->ob->level;
30	root	1.1
31			($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	root	1.11	return unless cf::player::find_active $user;
41	root	1.1
42			$ns->send_drawinfo (
43			"That player is already logged in on this server. "
44			. "If you want to create a new player, choose another name. "
45			. "If you are already a registered player, make sure nobody "
46			. "else is using your account at this time. If you lost your conenction "
47			. "then the server will likely timeout within a minute. If you still "
48			. "cannot log-in after a minute, you are still logged in. Make sure "
49			. "you do not have another client running. If you use windows, reboot, "
50			. "this will fix anything.",
51			cf::NDI_RED
52			);
53
54			1
55			}
56
57	root	1.11	sub check_clean_save {
58			my ($pl) = @_;
59
60	root	1.26	if (my $time = delete $pl->{unclean_save}) {
61			$pl->ns->send_drawinfo (
62			"You didn't use a savebed to leave this realm. This is very dangerous, "
63			. "as lots of things could happen when you leave by other means, such as cave-ins, "
64			. "or monsters suddenly snapping your body. Better use a savebed next time.",
65			cf::NDI_RED
66			);
67	root	1.11	#d#TODO
68			}
69			}
70
71	root	1.1	# delete a player directory, be non-blocking AND synchronous...
72			# (thats hard, so we crap out and fork).
73			sub nuke_playerdir {
74			my ($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	root	1.8	sub addme {
83	root	1.1	my ($ns) = @_;
84
85			$ns->destroy if $ns->pl;
86
87	root	1.10	$ns->async (sub {
88	root	1.1	my ($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 $ns, 0, "What is your name?\n:";
103	root	1.3
104			if ($cf::LOGIN_LOCK{$user}) {
105			$ns->send_drawinfo (
106			"That username is currently used in another login session. "
107			. "Chose another, or wait till the other session has ended.",
108			cf::NDI_RED
109			);
110	root	1.30	} elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
111	root	1.3	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	root	1.1	}
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			$ns->send_drawinfo (
136			"Try to use at least three characters as your password please, "
137			. "that cannot be too much to ask for :)",
138			cf::NDI_RED
139			);
140			}
141
142	root	1.3	# lock this username for the remainder of this login session
143			if ($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	root	1.1	# try to read the user file and check the password
156	root	1.19	if (my $pl = cf::player::find $user) {
157			aio_stat $pl->path and next;
158			my $mtime = (stat _)[9];
159			my $hash = $pl->password;
160	root	1.1
161	root	1.19	if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
162	root	1.9	nuke_str $pass;
163	root	1.1	# password matches, wonderful
164	root	1.11	my $pl = cf::player::find $user or next;
165	root	1.1	$pl->connect ($ns);
166	root	1.11	check_clean_save $pl;
167	root	1.1	last;
168	root	1.19	} elsif (can_cleanup $pl, $mtime) {
169	root	1.1	Coro::Timer::sleep 1;
170
171			$ns->send_drawinfo (
172	root	1.3	"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	root	1.1	. "because it has not been in-use for some time.",
175			cf::NDI_RED
176			);
177
178	root	1.9	#TODO: nuke_str
179	root	1.1	(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	root	1.11	aio_stat cf::player::path $user and next;
184	root	1.1	$mtime == (stat _)[9] or next;
185
186	root	1.19	$pl->quit_character;
187	root	1.1
188			# fall through to creation
189			} else {
190	root	1.9	nuke_str $pass;
191
192	root	1.1	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	root	1.3	# just to make sure nothing is left over
206	root	1.1	nuke_playerdir $user;
207
208	root	1.3	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
209
210			if ($pass2 ne $pass) {
211	root	1.9	nuke_str $pass;
212			nuke_str $pass2;
213	root	1.3	$ns->send_drawinfo (
214			"The passwords do not match, please try again.",
215			cf::NDI_RED
216			);
217			next;
218			}
219
220	root	1.9	nuke_str $pass2;
221
222	root	1.11	my $pl = cf::player::new $user;
223	root	1.1	$pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
224	root	1.9	nuke_str $pass;
225	root	1.1	$pl->connect ($ns);
226	root	1.3
227	root	1.1	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	root	1.11	delete $pl->{deny_save};#d# too early
258	root	1.1
259			last;
260			}
261			});
262			}
263
264	root	1.12	cf::register_command quit => sub {
265			my ($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			$pl->quit_character;
289			}
290			});
291			};
292	root	1.11
293	root	1.1	cf::object->attach (
294			type => cf::SAVEBED,
295			on_apply => sub {
296			my ($bed, $ob) = @_;
297
298			return cf::override 0 unless $ob->type == cf::PLAYER;
299
300	root	1.15	my $pl = $ob->contr;
301	root	1.11
302	root	1.1	# update respawn position
303	root	1.11	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
304	root	1.22	cf::async { $pl->save };
305	root	1.1
306	root	1.11	$pl->killer ("left");
307	root	1.5	$ob->check_score;
308	root	1.1
309			$ob->reply (undef, "In the future, you will wake up here when you die.");
310
311	root	1.11	$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
312	root	1.6	if ($_[0] !~ /^[yY]/) {
313	root	1.11	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
314			$pl->deactivate;
315			$pl->ns->destroy;
316	root	1.7	} else {
317	root	1.13	cf::async { $pl->save };
318	root	1.6	}
319	root	1.1	});
320			},
321			);
322
323	root	1.8	cf::player->attach (
324			on_login => sub {
325			my ($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	root	1.26	$pl->{unclean_save} = $cf::RUNTIME;
339	root	1.8	}
340			},
341			);
342
343			cf::client->attach (
344			on_addme => \&addme,
345			);
346	root	1.1
347	root	1.11	#############################################################################
348
349	root	1.21	our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
350			our $SAVE_TIMEOUT = 20; # save players every n seconds
351	root	1.11
352			our $SCHEDULER = cf::async_ext {
353	root	1.27	my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
354	root	1.11	while () {
355	root	1.27	$schedule_interval->next;
356	root	1.11
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	root	1.24	$cf::WAIT_FOR_TICK_ONE->wait;
370	root	1.11	$pl->save;
371	root	1.17
372	root	1.21	unless ($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	root	1.23	my $a_ = $pl->refcnt;#d#
378			my $b_ = $ob->refcnt;#d#
379	root	1.21	my $pl_ref = $pl->refcnt_cnt;
380			my $ob_ref = $ob->refcnt_cnt;
381
382	root	1.20	## pl_ref == one from object + one from cf::PLAYER
383			## ob_ref == one from simply being an object
384	root	1.29	if ($pl_ref == 2 && $ob_ref == 1) {
385	root	1.21	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	root	1.17	}
397			}
398	root	1.11	};
399			warn $@ if $@;
400			Coro::cede;
401			};
402			}
403			};
404
405			$SCHEDULER->prio (1);
406