server/ext/login.ext

#! perl # mandatory

# login handling

use Fcntl;
use Coro::AIO;

# 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 have already a registered, make sure nobody "
    . "else is using your account at this time. If you lost your connection "
    . "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 enter_map {
   my ($pl) = @_;

   my ($map, $x, $y)
      = $pl->ob->{_link_pos}
        ? @{delete $pl->ob->{_link_pos}}
        : ($pl->maplevel, $pl->ob->x, $pl->ob->y);

   $pl->ob->enter_link;

   if (my $time = delete $pl->{unclean_save}) {
      if (my $m = cf::map::find $map) {
         if ($time < $m->{instantiate_time}) {
            # the map was reset in the meantime
            my $age = $cf::RUNTIME - $time;
            warn $pl->ob->name, " map reset after logout, logout age $age\n";#d#

            # for now, just go back to savebed
            ($map, $x, $y) = $pl->savebed;

            $pl->ns->send_drawinfo (
               "You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
             . "Fortunately, some friendly dwellers found you, checked your passport, and brought you to safety. "
             . "Better use a savebed next time, much worse things could have happened...",
               cf::NDI_RED
            );
         } else {
            $pl->ns->send_drawinfo (
               "You didn't use a bed to reality 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
            );
         }
      }
   }

   $pl->ob->goto ($map, $x, $y);
}

# 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~ &)";
}

cf::client->attach (on_addme => sub {
   my ($ns) = @_;

   if (!$ns->facecache)
     {
       $ns->send_drawinfo (<<EOF, cf::NDI_RED);


***
*** WARNING:
*** Your client does not support face/image caching,
*** or it has been disabled. Face caching is mandatory
*** so please enable it or use a newer client.
***
*** Look at your client preferences:
***
*** CFPlus: all known versions automatically enable the facecache.
*** cfclient: use the -cache commandline option.
*** cfclient: map will not redraw automatically (bug).
*** gcfclient: use -cache commandline option, or enable
*** gcfclient: Client=>Configure=>Map & Image=>Cache Images.
*** jcrossclient: your client is broken, use CFPlus or gcfclient.
***
***
EOF
      if ($ns->version =~ /jcrossclient/) {
         # let them, for now
      } else {
        $ns->flush;
        return $ns->destroy;
      }

      # $ns->facecache = true;
   }

   if ($ns->mapmode < cf::Map1aCmd) {
      $ns->send_drawinfo (<<EOF, cf::NDI_RED);


***
*** WARNING:
*** Your client is too old. Please upgrade to a newer version.
EOF

      $ns->flush;
      return $ns->destroy;
   }

   $ns->pl and return $ns->destroy;

   $ns->async (sub {
      my ($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
               );
            }
            Coro::Timer::sleep 0.4;
         }

         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
            );
            Coro::Timer::sleep 0.4;
         }

         # 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);
               enter_map $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;
            }
         } else {
            # unable to load the playerfile:
            # check wether the player dir exists, which means the file is corrupted or
            # something very similar.
            if (!aio_stat cf::player::playerdir $user) {
               $ns->send_drawinfo (
                  "Unable to retrieve this player. It might be a locked or broken account. "
                . "If this is your account, ask a dungeon master for assistance. "
                . "Otherwise choose a different login name.",
                  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
            );
            Coro::Timer::sleep 0.5;
            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;

         $ob->goto ($pl->maplevel, $ob->x, $ob->y);

         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;
            }

            Coro::Timer::sleep 0.2;
         }

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

         while () {
            $ns->send_msg (-1, "chargen-race-title", ucfirst $pl->title);
            my $msg = $ob->msg;
            $msg =~ s/(?<=\S)\n(?=\S)/ /g;
            $ns->send_msg (cf::NDI_BLUE, "chargen-race-description", $msg);

            my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
                         "Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n";

            last if $res =~ /[dD]/;

            $pl->chargen_race_next;
            Coro::Timer::sleep 0.2;
         }

         $pl->chargen_race_done;

         while () {
            my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
                         "Now choose a gender.\nPress 'f' to become female, and 'm' to become male.\n";

            if ($res =~ /^[fF]/) {
               $pl->gender (1);
               last;
            } elsif ($res =~ /^[mM]/) {
               $pl->gender (0);
               last;
            }
            Coro::Timer::sleep 0.2;
         }

         $ob->reply (undef, "Welcome to Crossfire!");

         delete $pl->{deny_save};

         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;
         cf::async { $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;
      }
   },
);

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

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_begin;
               $pl->save;

               unless ($pl->active || $pl->ns) {
                  # check refcounts, this is tricky and needs to be adjusted to fit server internals
                  my $ob = $pl->ob;

                  my $pl_ref = $pl->refcnt_cnt;
                  my $ob_ref = $ob->refcnt_cnt;

                  ## pl_ref == $pl + ob->contr   + %cf::PLAYER
                  ## ob_ref == $ob + pl->observe + simply being an object
                  if ($pl_ref == 3 && $ob_ref == 3) {
                     warn "player-scheduler destroy ", $ob->name;#d#

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

                     $pl->destroy; # destroys $ob
                  } else {
                     my $a_ = $pl->refcnt;#d#
                     my $b_ = $ob->refcnt;#d#

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

$SCHEDULER->prio (1);

Revision:	1.61
Committed:	Tue Jul 10 06:12:13 2007 UTC (16 years, 10 months ago) by root
Branch:	MAIN
Changes since 1.60:	+7 -0 lines
Log Message:	add some delays, as gcfclient likes to endlessly repeat. also avoids obvious resource-starving attacks
#	Content
1	#! perl # mandatory
2
3	# login handling
4
5	use Fcntl;
6	use Coro::AIO;
7
8	# paranoia function to overwrite a string-in-place
9	sub nuke_str {
10	substr $_[0], 0, (length $_[0]), "x" x length $_[0]
11	}
12
13	sub query {
14	my ($ns, $flags, $text) = @_;
15
16	my $current = $Coro::current;
17	$ns->query ($flags, $text, sub { $current->ready; $current = $_[0] });
18	Coro::schedule while ref $current;
19
20	$current
21	}
22
23	sub can_cleanup {
24	my ($pl, $mtime) = @_;
25
26	my $age = time - $mtime;
27	my $level = $pl->ob->level;
28
29	($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
30	\|\| ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
31	\|\| ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
32	\|\| $age > 700 * 86400 # 2 years for everybody else
33	}
34
35	sub check_playing {
36	my ($ns, $user) = @_;
37
38	return unless cf::player::find_active $user;
39
40	$ns->send_drawinfo (
41	"That player is already logged in on this server. "
42	. "If you want to create a new player, choose another name. "
43	. "If you have already a registered, make sure nobody "
44	. "else is using your account at this time. If you lost your connection "
45	. "then the server will likely timeout within a minute. If you still "
46	. "cannot log-in after a minute, you are still logged in. Make sure "
47	. "you do not have another client running. If you use windows, reboot, "
48	. "this will fix anything.",
49	cf::NDI_RED
50	);
51
52	1
53	}
54
55	sub enter_map {
56	my ($pl) = @_;
57
58	my ($map, $x, $y)
59	= $pl->ob->{_link_pos}
60	? @{delete $pl->ob->{_link_pos}}
61	: ($pl->maplevel, $pl->ob->x, $pl->ob->y);
62
63	$pl->ob->enter_link;
64
65	if (my $time = delete $pl->{unclean_save}) {
66	if (my $m = cf::map::find $map) {
67	if ($time < $m->{instantiate_time}) {
68	# the map was reset in the meantime
69	my $age = $cf::RUNTIME - $time;
70	warn $pl->ob->name, " map reset after logout, logout age $age\n";#d#
71
72	# for now, just go back to savebed
73	($map, $x, $y) = $pl->savebed;
74
75	$pl->ns->send_drawinfo (
76	"You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
77	. "Fortunately, some friendly dwellers found you, checked your passport, and brought you to safety. "
78	. "Better use a savebed next time, much worse things could have happened...",
79	cf::NDI_RED
80	);
81	} else {
82	$pl->ns->send_drawinfo (
83	"You didn't use a bed to reality to leave this realm. This is very dangerous, "
84	. "as lots of things could happen when you leave by other means, such as cave-ins, "
85	. "or monsters suddenly snapping your body. Better use a savebed next time.",
86	cf::NDI_RED
87	);
88	}
89	}
90	}
91
92	$pl->ob->goto ($map, $x, $y);
93	}
94
95	# delete a player directory, be non-blocking AND synchronous...
96	# (thats hard, so we crap out and fork).
97	sub nuke_playerdir {
98	my ($user) = @_;
99
100	aio_stat "$PLAYERDIR/$user";
101	system "cd \Q$PLAYERDIR\E "
102	. "&& mv \Q$user\E ~\Q$Coro::current\E~deleting~ 2>/dev/null "
103	. "&& (rm -rf ~\Q$Coro::current\E~deleting~ &)";
104	}
105
106	cf::client->attach (on_addme => sub {
107	my ($ns) = @_;
108
109	if (!$ns->facecache)
110	{
111	$ns->send_drawinfo (<<EOF, cf::NDI_RED);
112
113
114	***
115	*** WARNING:
116	*** Your client does not support face/image caching,
117	*** or it has been disabled. Face caching is mandatory
118	*** so please enable it or use a newer client.
119	***
120	*** Look at your client preferences:
121	***
122	*** CFPlus: all known versions automatically enable the facecache.
123	*** cfclient: use the -cache commandline option.
124	*** cfclient: map will not redraw automatically (bug).
125	*** gcfclient: use -cache commandline option, or enable
126	*** gcfclient: Client=>Configure=>Map & Image=>Cache Images.
127	*** jcrossclient: your client is broken, use CFPlus or gcfclient.
128	***
129	***
130	EOF
131	if ($ns->version =~ /jcrossclient/) {
132	# let them, for now
133	} else {
134	$ns->flush;
135	return $ns->destroy;
136	}
137
138	# $ns->facecache = true;
139	}
140
141	if ($ns->mapmode < cf::Map1aCmd) {
142	$ns->send_drawinfo (<<EOF, cf::NDI_RED);
143
144
145	***
146	*** WARNING:
147	*** Your client is too old. Please upgrade to a newer version.
148	EOF
149
150	$ns->flush;
151	return $ns->destroy;
152	}
153
154	$ns->pl and return $ns->destroy;
155
156	$ns->async (sub {
157	my ($user, $pass);
158
159	$ns->send_packet ("addme_success");
160
161	for (;;) {
162	$ns->send_drawinfo (
163	"Please enter your username now. If you are a new user, "
164	. "make one up that describes your character best. "
165	. "Only letters and digits are allowed, though.",
166	cf::NDI_BLUE
167	);
168
169	# read username
170	while () {
171	$user = query $ns, 0, "What is your name?\n:";
172
173	if ($cf::LOGIN_LOCK{$user}) {
174	$ns->send_drawinfo (
175	"That username is currently used in another login session. "
176	. "Chose another, or wait till the other session has ended.",
177	cf::NDI_RED
178	);
179	} elsif ($user =~ /^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,17}\z/) {
180	last;
181	} else {
182	$ns->send_drawinfo (
183	"Your username contains illegal characters "
184	. "(only a-z, A-Z and 0-9 are allowed), "
185	. "or is not between 3 and 18 characters in length.",
186	cf::NDI_RED
187	);
188	}
189	Coro::Timer::sleep 0.4;
190	}
191
192	check_playing $ns, $user and next;
193
194	$ns->send_drawinfo (
195	"Welcome $user, please enter your password now. "
196	. "New users should now choose a password. "
197	. "Anything your client lets you enter is fine.",
198	cf::NDI_BLUE
199	);
200
201	# read password
202	while () {
203	$pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
204	last if $pass =~ /.../;
205	$ns->send_drawinfo (
206	"Try to use at least three characters as your password please, "
207	. "that cannot be too much to ask for :)",
208	cf::NDI_RED
209	);
210	Coro::Timer::sleep 0.4;
211	}
212
213	# lock this username for the remainder of this login session
214	if ($cf::LOGIN_LOCK{$user}) {
215	$ns->send_drawinfo (
216	"That username is currently used in another login session. "
217	. "Chose another, or wait till the other session has ended.",
218	cf::NDI_RED
219	);
220	next;
221	}
222	local $cf::LOGIN_LOCK{$user} = 1;
223
224	check_playing $ns, $user and next;
225
226	# try to read the user file and check the password
227	if (my $pl = cf::player::find $user) {
228	aio_stat $pl->path and next;
229	my $mtime = (stat _)[9];
230	my $hash = $pl->password;
231
232	if ($cf::CFG{ext_login_nocheck} or $hash eq crypt $pass, $hash) {
233	nuke_str $pass;
234	# password matches, wonderful
235	my $pl = cf::player::find $user or next;
236	$pl->connect ($ns);
237	enter_map $pl;
238	last;
239	} elsif (can_cleanup $pl, $mtime) {
240	Coro::Timer::sleep 1;
241
242	$ns->send_drawinfo (
243	"Player exists, but password does not match. If this is your account, "
244	. "please try again. If not, you can now decide to take over this account "
245	. "because it has not been in-use for some time.",
246	cf::NDI_RED
247	);
248
249	#TODO: nuke_str
250	(query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
251	or next;
252
253	# check if the file hasn't changed
254	aio_stat cf::player::path $user and next;
255	$mtime == (stat _)[9] or next;
256
257	$pl->quit_character;
258
259	# fall through to creation
260	} else {
261	nuke_str $pass;
262
263	Coro::Timer::sleep 1;
264
265	$ns->send_drawinfo (
266	"Wrong username or password. Please try again "
267	. "(check for Numlock and other semi-obvious error sources).",
268	cf::NDI_RED
269	);
270	next;
271	}
272	} else {
273	# unable to load the playerfile:
274	# check wether the player dir exists, which means the file is corrupted or
275	# something very similar.
276	if (!aio_stat cf::player::playerdir $user) {
277	$ns->send_drawinfo (
278	"Unable to retrieve this player. It might be a locked or broken account. "
279	. "If this is your account, ask a dungeon master for assistance. "
280	. "Otherwise choose a different login name.",
281	cf::NDI_RED
282	);
283	next;
284	}
285	}
286
287	# the rest of this function is character creation
288
289	# just to make sure nothing is left over
290	nuke_playerdir $user;
291
292	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
293
294	if ($pass2 ne $pass) {
295	nuke_str $pass;
296	nuke_str $pass2;
297	$ns->send_drawinfo (
298	"The passwords do not match, please try again.",
299	cf::NDI_RED
300	);
301	Coro::Timer::sleep 0.5;
302	next;
303	}
304
305	nuke_str $pass2;
306
307	my $pl = cf::player::new $user;
308	$pl->password (crypt $pass, join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]);
309	nuke_str $pass;
310	$pl->connect ($ns);
311	my $ob = $pl->ob;
312
313	$ob->goto ($pl->maplevel, $ob->x, $ob->y);
314
315	while () {
316	$ob->update_stats;
317	$pl->save_stats;
318
319	my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
320	"[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
321
322	if ($res =~ /^[Nn]/) {
323	last;
324	} elsif ($res > 0 && $res <= 7) {
325	my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
326
327	if ($swap > 0 && $swap <= 7) {
328	$ob->swap_stats ($res - 1, $swap - 1);
329	}
330	} else {
331	$ob->roll_stats;
332	}
333
334	Coro::Timer::sleep 0.2;
335	}
336
337	$ob->set_animation (2);
338	$ob->add_statbonus;
339
340	while () {
341	$ns->send_msg (-1, "chargen-race-title", ucfirst $pl->title);
342	my $msg = $ob->msg;
343	$msg =~ s/(?<=\S)\n(?=\S)/ /g;
344	$ns->send_msg (cf::NDI_BLUE, "chargen-race-description", $msg);
345
346	my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
347	"Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n";
348
349	last if $res =~ /[dD]/;
350
351	$pl->chargen_race_next;
352	Coro::Timer::sleep 0.2;
353	}
354
355	$pl->chargen_race_done;
356
357	while () {
358	my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
359	"Now choose a gender.\nPress 'f' to become female, and 'm' to become male.\n";
360
361	if ($res =~ /^[fF]/) {
362	$pl->gender (1);
363	last;
364	} elsif ($res =~ /^[mM]/) {
365	$pl->gender (0);
366	last;
367	}
368	Coro::Timer::sleep 0.2;
369	}
370
371	$ob->reply (undef, "Welcome to Crossfire!");
372
373	delete $pl->{deny_save};
374
375	last;
376	}
377	});
378	});
379
380	cf::register_command quit => sub {
381	my ($ob, $arg) = @_;
382
383	$ob->reply (undef,
384	"Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
385	. "If you are sure you want to do this, then use the quit_character command instead of quit.",
386	cf::NDI_UNIQUE \| cf::NDI_RED);
387	};
388
389	cf::register_command quit_character => sub {
390	my ($ob, $arg) = @_;
391
392	my $pl = $ob->contr;
393
394	$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
395	if ($_[0] !~ /^[yY]/) {
396	$ob->reply (undef,
397	"Ok, not not quitting then.",
398	cf::NDI_UNIQUE \| cf::NDI_RED);
399	} else {
400	$ob->reply (undef,
401	"Ok, quitting, hope to see you again.",
402	cf::NDI_UNIQUE \| cf::NDI_RED);
403	$pl->ns->flush;
404	cf::async { $pl->quit_character };
405	}
406	});
407	};
408
409	cf::object->attach (
410	type => cf::SAVEBED,
411	on_apply => sub {
412	my ($bed, $ob) = @_;
413
414	return cf::override 0 unless $ob->type == cf::PLAYER;
415
416	my $pl = $ob->contr;
417
418	# update respawn position
419	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
420	cf::async { $pl->save };
421
422	$pl->killer ("left");
423	$ob->check_score;
424
425	$ob->reply (undef, "In the future, you will wake up here when you die.");
426
427	$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
428	if ($_[0] !~ /^[yY]/) {
429	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
430	$pl->deactivate;
431	$pl->ns->destroy;
432	} else {
433	cf::async { $pl->save };
434	}
435	});
436	},
437	);
438
439	cf::player->attach (
440	on_login => sub {
441	my ($pl) = @_;
442	my $name = $pl->ob->name;
443
444	$_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
445	},
446	on_logout => sub {
447	my ($pl, $cleanly) = @_;
448	my $name = $pl->ob->name;
449
450	if ($cleanly) {
451	$_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
452	} else {
453	$_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
454	$pl->{unclean_save} = $cf::RUNTIME;
455	}
456	},
457	);
458
459	#############################################################################
460
461	our $SCHEDULE_INTERVAL = 10; # time the player scheduler sleeps between runs
462	our $SAVE_TIMEOUT = 20; # save players every n seconds
463
464	our $SCHEDULER = cf::async_ext {
465	my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
466	while () {
467	$schedule_interval->next;
468
469	# this weird form of iteration over values is used because
470	# the hash changes underneath us frequently, and for
471	# keeps a direct reference to the value without (in 5.8 perls)
472	# keeping a reference, so this is prone to crashes or worse.
473	my @players = keys %cf::PLAYER;
474	for (@players) {
475	my $pl = $cf::PLAYER{$_}
476	or next;
477	$pl->valid or next;
478
479	eval {
480	if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
481	cf::wait_for_tick_begin;
482	$pl->save;
483
484	unless ($pl->active \|\| $pl->ns) {
485	# check refcounts, this is tricky and needs to be adjusted to fit server internals
486	my $ob = $pl->ob;
487
488	my $pl_ref = $pl->refcnt_cnt;
489	my $ob_ref = $ob->refcnt_cnt;
490
491	## pl_ref == $pl + ob->contr + %cf::PLAYER
492	## ob_ref == $ob + pl->observe + simply being an object
493	if ($pl_ref == 3 && $ob_ref == 3) {
494	warn "player-scheduler destroy ", $ob->name;#d#
495
496	# remove from sight and get fresh "copies"
497	$pl = delete $cf::PLAYER{$ob->name};
498	$ob = $pl->ob;
499
500	$pl->destroy; # destroys $ob
501	} else {
502	my $a_ = $pl->refcnt;#d#
503	my $b_ = $ob->refcnt;#d#
504
505	warn "player-scheduler refcnt ", $ob->name, " pl $pl_ref ob $ob_ref (C pl $a_ ob $b_)\n";#d#
506	}
507	}
508	}
509	};
510	warn $@ if $@;
511	Coro::cede;
512	};
513	}
514	};
515
516	$SCHEDULER->prio (1);
517