server/ext/login.ext

#! perl # mandatory depends=highscore

# login handling

use Fcntl;
use Coro::AIO;
use Deliantra::Util ();

CONF MAX_DISCONNECT_TIME = 3600;

our $VALID_LOGIN = qr<^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,19}\z>;
our %LOGIN_LOCK;

# utility function to send messages to the client before
# we have a player object to format them for. does not
# escape anything.
sub send_log ($$$) {
   $_[0]->send_packet ("msg $_[2] log $_[1]");
}

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

   $ns->query ($flags, $text, Coro::rouse_cb);
   Coro::rouse_wait
}

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
}

# return a guard object for a lock on the given username, if available
sub login_guard {
   my ($user) = @_;

   exists $LOGIN_LOCK{$user}
      and return undef;

   cf::player::find_active $user
      and return undef;

   undef $LOGIN_LOCK{$user};
   Guard::guard { delete $LOGIN_LOCK{$user} }
}

sub safe_spot($) {
   my ($pl) = @_;
   
   my $ob = $pl->ob;

   my $m = $ob->map
      or return;
   my $x = $ob->x;
   my $y = $ob->y;

   # never happens normally, but helps when shell users make mistakes
   $m->linkable
      or return 1;

   scalar grep $_->type == cf::SAVEBED, $m->at ($x, $y)
}

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

   my $ob = $pl->ob;

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

   $ob->enter_link;

   my $m = cf::map::find $map;
   my $time = delete $pl->{unclean_save};

   if ($time && $m) {
      if ($time < $m->{instantiate_time}) {
         # the map was reset in the meantime
         my $age = $cf::RUNTIME - $time;

         cf::info $ob->name, " map reset after logout, logout age $age (>= $MAX_DISCONNECT_TIME)\n";#d#

         if ($age >= $MAX_DISCONNECT_TIME) {
            $ob->message (
               "You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
             . "Unfortunately, nobody was near to help you when the monsters arrived to eat you. "
             . "Maybe you can find comfort in the thought that your body was quite satisfying in taste... "
             . "H<You disconnected too long without having used a savebed.>",
               cf::NDI_RED | cf::NDI_REPLY
            );
            # kill them.
            # reminds me of the famous badness 10000 syndrome...
            $ob->stats->hp (-10000); #] if they survive this they deserved to live
            my $killer = cf::arch::get "killer_login"; $pl->killer ($killer); $killer->destroy;
         } else {
            ($map, $x, $y) = $pl->savebed;

            $ob->message (
               "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... "
             . "H<You disconnected without having used a savebed. When you do that for too long, you might die.>",
               cf::NDI_RED | cf::NDI_REPLY
            );
         }
      } else {
         $ob->message (
            "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. "
          . "H<Always apply a bed of reality to disconnect from the server.>",
            cf::NDI_RED | cf::NDI_REPLY
         );
      }
   }

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

sub encode_password($) {
   unpack "H*", Deliantra::Util::hash_pw $_[0]
}

sub compare_password($$) {
   my ($pass, $token) = @_;

   if ($token =~ /!!(.*)/) {
      return +(substr $pass, 0, 8) eq pack "H*", $1;
   } elsif ($token =~ /!(.*)/) {
      return $pass eq pack "H*", $1;
   } else {
      return $token eq crypt $pass, $token;
   }
}

# delete a player directory
sub nuke_playerdir {
   my ($user) = @_;

   my $lock = cf::lock_acquire "ext::login::nuke_playerdir";

   my $temp = "$PLAYERDIR/~$Coro::current~deleting~";
   aio_rename "$PLAYERDIR/$user", $temp;
   IO::AIO::aio_rmtree $temp;
}

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

   # handle character creation, if neccessary
   # the rest of this function is character creation

   my $ns = $pl->ns;
   my $ob = $pl->ob;

   if ($pl->{chargen} eq "init") {
      $ob->goto ($pl->maplevel, $ob->x, $ob->y);

      # create the playerdir, if necessary, as chargen_race_done did it before
      # presumably because of unique maps
      aio_mkdir playerdir $pl, 0770;
      delete $pl->{deny_save}; # set by new
      $pl->save;

      $pl->{chargen} = "stats";
   }

   if ($pl->{chargen} eq "stats") {
      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 0.05;
      }

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

      $pl->{chargen} = "race";
   }

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

         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 0.05;
      }

      $pl->chargen_race_done;
      $pl->{chargen} = "gender";
   }

   if ($pl->{chargen} eq "race") {
      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 0.05;
      }
      $pl->{chargen} = "done";
   }

   $ns->state (cf::ST_PLAYING);

   if ($pl->{chargen} eq "done") {
      # XXX: Workaround for delayed client ext protocol handshake
      $pl->esrv_new_player;

      $pl->{chargen} = "done";
   }

   $ns->update_command_faces;

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

   if (0 < Coro::AIO::aio_load "$cf::CONFDIR/motd", my $motd) {
      $pl->ns->send_msg ("c/motd" => $motd, cf::NDI_CLEAR);
   }
}

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

   # just to make sure nothing is left over
   # normally, nothing is there.
   nuke_playerdir $user;

   my $pl = cf::player::new $user;
   $pl->password (unpack "H*", $hash);
   $pl->connect ($ns);

   $pl->{chargen} = "init";

   login $pl;
}

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

   $ns->{addme}++ and return $ns->destroy;

   $ns->async (sub {
      $Coro::current->{desc} = "addme init";

      my ($user, $pass);

      $ns->send_packet ("addme_success");

      for (;;) {
         delete $ns->{login_guard};

         send_log $ns,
            "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 | cf::NDI_REPLY
         ;

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

            if ($user =~ $VALID_LOGIN) {
               last;
            } else {
               send_log $ns,
                  "Your username contains illegal characters "
                . "(only a-z, A-Z and 0-9 are allowed), "
                . "or is not between 3 and 20 characters in length.",
                  cf::NDI_RED | cf::NDI_REPLY
               ;
            }
            Coro::Timer::sleep 0.4;
         }

         $Coro::current->{desc} = "addme($user)";

         send_log $ns,
            "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 | cf::NDI_REPLY
         ;

         # read password
         while () {
            $pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
            last if $pass =~ /.../;
            send_log $ns,
               "Try to use at least three characters as your password please, "
             . "that cannot be too much to ask for :)",
               cf::NDI_RED | cf::NDI_REPLY
            ;
            Coro::Timer::sleep 0.4;
         }

         $ns->{login_guard} = login_guard $user
            or do {
               send_log $ns,
                  "That user is already logged in (or is logging in)."
                . "Chose another, or wait till the other session has ended.",
                  cf::NDI_RED | cf::NDI_REPLY
               ;
               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 $token = $pl->password;

            if ($cf::CFG{ext_login_nocheck} or compare_password $pass, $token) {
               # player exists and passwords match - we can proceed

               # password matches, wonderful
               my $pl = cf::player::find $user or next;
               $pl->connect ($ns);
               enter_map $pl;
               login $pl;
               return;
            } elsif (can_cleanup $pl, $mtime) {
               Coro::Timer::sleep 1;

               send_log $ns,
                  "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 | cf::NDI_REPLY
               ;

               (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 {
               Coro::Timer::sleep 1;

               send_log $ns,
                  "Wrong username or password. Please try again "
                . "(check for Numlock and other semi-obvious error sources).",
                  cf::NDI_RED | cf::NDI_REPLY
               ;
               next;
            }
         } else {
            # unable to load the playerfile:
            # check whether the player dir exists, which means the file is corrupted or
            # something very similar.
            if (!aio_stat cf::player::playerdir $user) {
               send_log $ns,
                  "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 | cf::NDI_REPLY
               ;
               next;
            }
         }

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

         if ($pass2 ne $pass) {
            send_log $ns,
               "The passwords do not match, please try again.",
               cf::NDI_RED | cf::NDI_REPLY
            ;
            Coro::Timer::sleep 0.5;
            next;
         }

         last;
      }

      chargen $ns, $user, Deliantra::Util::hash_pw $pass;
   });
});

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

      # perl probably uses lrand48, which is not secure at all
      # maybe require linux and use /dev/urandom.
      $ns->{nonces} = [map { join "", map { chr rand 256 } 0..63  } 1..2];
      $ns->ext_msg (nonces => @{ $ns->{nonces} });
   },
);

cf::register_async_exticmd create_login => sub {
   my ($ns, $reply, $user, $pass) = @_;

   $ns->{addme}++ and return $ns->destroy;

   $ns->async (sub {
      my $fail = sub {
         $reply->(0, $_[0]);
         $ns->flush; # does not ensure that the data reaches the client - TODO
         # need to do this in another thread, as this one gets canceled
         Coro::async_pool {
            Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
            $ns->destroy if $ns->valid;
         };
         Coro::schedule; # do the destroy, should not return
      };

      $user =~ $VALID_LOGIN
         or return $fail (
               "Your username contains illegal characters (only a-z, A-Z and 0-9 are allowed), "
             . "or is not between 3 and 20 characters in length."
            );

      $ns->{login_guard} = login_guard $user
         or return $fail->("User name '$user' is in use - try another login name.");

      cf::player::find $user
         and return $fail->("User name '$user' is already registered - choose another login name.");

      $reply->(1, "Account Created");

      chargen $ns, $user, $pass;
   });
};

cf::register_async_exticmd login => sub {
   my ($ns, $reply, $user, $hash) = @_;

   $ns->{addme}++ and return $ns->destroy;

   $ns->async (sub {
      $Coro::current->{desc} = "login($user)";

      my $fail = sub {
         $reply->(0, $_[0]);
         $ns->flush; # does not ensure that the data reaches the client - TODO
         # need to do this in another thread, as this one gets canceled
         Coro::async_pool {
            Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
            $ns->destroy if $ns->valid;
         };
         Coro::schedule; # do the destroy, should not return
      };

      $ns->{login_guard} = login_guard $user
         or return $fail->("User '$user' is currently playing or logging in in another session. If that is your "
                           . "user name, make sure you are not running two clients. When in doubt, reboot.");

      # try to read the user file and check the password
      my $pl = cf::player::find $user
         or return $fail->("User '$user' does not exist - wrong spelling?");

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

      my $mtime = (stat _)[9];
      my $token = $pl->password;

      $token = $token =~ /^!/
               ? Deliantra::Util::hash_pw pack "H*", substr $token, 1
               : pack "H*", $token;

      $token = Deliantra::Util::auth_pw $token, $ns->{nonces}[0], $ns->{nonces}[1];

      $token eq $hash
         or $cf::CFG{ext_login_nocheck}
         or return $fail->("User exists, but the password doesn't match - check your spelling, NumLock/CapsLock etc.");
      
      # player exists and passwords match - we can proceed

      $reply->(1, "Success");

      $pl->connect ($ns);
      enter_map $pl;
      login $pl;
   });
};

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

   unless ($pl->flag (cf::FLAG_WIZ)) {
      $pl->message (
         "The password can currently only changed by a DM.",
         cf::NDI_UNIQUE | cf::NDI_REPLY);
      return;
   }

   $pl->message (#d#
      "Passwords cannot currently be changed.",#d#
      cf::NDI_UNIQUE | cf::NDI_REPLY);#d#
   return;#d#

   my (@args) = split /\s+/, $arg;
   my ($player, $new_pw) = @args;

   if ($pl->flag (cf::FLAG_WIZ) && $player eq '') {
      $pl->message (
         "Usage: password <player> [<new password>]",
         cf::NDI_UNIQUE | cf::NDI_REPLY);
      return;
   }

   if ($new_pw eq '') {
      $new_pw =
         join '',
            map { ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[(cf::rndm 64)] }
               1..9;
   }

   cf::async {
      my $plc = cf::player::find $player;
      if ($plc) {
         $plc->password (encode_password $new_pw);
         $pl->message (
            "Ok, changed password of '$player' to '$new_pw'!",
            cf::NDI_UNIQUE | cf::NDI_RED | cf::NDI_REPLY);
      } else {
         $pl->message (
            "Fail! Couldn't set password for '$player', "
            . "he doesn't seem to exist!",
            cf::NDI_UNIQUE | cf::NDI_RED | cf::NDI_REPLY);
      }
   };
};

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

   $ob->send_msg (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::NDI_REPLY);
};

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->send_msg (undef, "Ok, not not quitting then.", cf::NDI_UNIQUE | cf::NDI_RED | cf::NDI_REPLY);
      } else {
         $ob->send_msg (undef, "Ok, quitting, hope to see you again.", cf::NDI_UNIQUE | cf::NDI_RED | cf::NDI_REPLY);
         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 {
         my $killer = cf::arch::get "killer_logout"; $pl->killer ($killer); $killer->destroy;
         ext::highscore::check $ob;

         $pl->save;

         $ob->send_msg ($cf::SAY_CHANNEL => "In the future, you will wake up here when you die.", cf::NDI_DEF | cf::NDI_REPLY);

         my $ns = $pl->ns
            or return;

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

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
            unless safe_spot $pl;
      }
   },
);

Revision:	1.132
Committed:	Tue Nov 20 14:30:22 2012 UTC (11 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.131:	+2 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.102	#! perl # mandatory depends=highscore
2	root	1.1
3			# login handling
4
5			use Fcntl;
6			use Coro::AIO;
7	root	1.120	use Deliantra::Util ();
8	root	1.53
9	root	1.117	CONF MAX_DISCONNECT_TIME = 3600;
10	root	1.64
11	root	1.125	our $VALID_LOGIN = qr<^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,19}\z>;
12	root	1.129	our %LOGIN_LOCK;
13
14	root	1.131	# utility function to send messages to the client before
15			# we have a player object to format them for. does not
16			# escape anything.
17			sub send_log ($$$) {
18			$_[0]->send_packet ("msg $_[2] log $_[1]");
19			}
20
21	root	1.1	sub query {
22			my ($ns, $flags, $text) = @_;
23
24	root	1.94	$ns->query ($flags, $text, Coro::rouse_cb);
25			Coro::rouse_wait
26	root	1.1	}
27
28			sub can_cleanup {
29	root	1.19	my ($pl, $mtime) = @_;
30	root	1.1
31			my $age = time - $mtime;
32	root	1.19	my $level = $pl->ob->level;
33	root	1.1
34			($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
35			\|\| ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
36			\|\| ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
37			\|\| $age > 700 * 86400 # 2 years for everybody else
38			}
39
40	root	1.129	# return a guard object for a lock on the given username, if available
41			sub login_guard {
42			my ($user) = @_;
43	root	1.1
44	root	1.129	exists $LOGIN_LOCK{$user}
45			and return undef;
46	root	1.1
47	root	1.129	cf::player::find_active $user
48			and return undef;
49	root	1.1
50	root	1.129	undef $LOGIN_LOCK{$user};
51			Guard::guard { delete $LOGIN_LOCK{$user} }
52	root	1.1	}
53
54	root	1.79	sub safe_spot($) {
55			my ($pl) = @_;
56
57			my $ob = $pl->ob;
58	root	1.76
59	root	1.79	my $m = $ob->map
60			or return;
61			my $x = $ob->x;
62			my $y = $ob->y;
63
64	root	1.113	# never happens normally, but helps when shell users make mistakes
65	root	1.116	$m->linkable
66	root	1.113	or return 1;
67
68	root	1.76	scalar grep $_->type == cf::SAVEBED, $m->at ($x, $y)
69			}
70
71	root	1.48	sub enter_map {
72	root	1.11	my ($pl) = @_;
73
74	root	1.62	my $ob = $pl->ob;
75
76	root	1.48	my ($map, $x, $y)
77	root	1.62	= $ob->{_link_pos}
78			? @{delete $ob->{_link_pos}}
79			: ($pl->maplevel, $ob->x, $ob->y);
80	root	1.48
81	root	1.62	$ob->enter_link;
82	root	1.48
83	root	1.77	my $m = cf::map::find $map;
84			my $time = delete $pl->{unclean_save};
85
86	root	1.79	if ($time && $m) {
87	root	1.77	if ($time < $m->{instantiate_time}) {
88			# the map was reset in the meantime
89			my $age = $cf::RUNTIME - $time;
90
91	root	1.107	cf::info $ob->name, " map reset after logout, logout age $age (>= $MAX_DISCONNECT_TIME)\n";#d#
92	root	1.77
93			if ($age >= $MAX_DISCONNECT_TIME) {
94			$ob->message (
95			"You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
96			. "Unfortunately, nobody was near to help you when the monsters arrived to eat you. "
97			. "Maybe you can find comfort in the thought that your body was quite satisfying in taste... "
98			. "H<You disconnected too long without having used a savebed.>",
99	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
100	root	1.77	);
101			# kill them.
102			# reminds me of the famous badness 10000 syndrome...
103			$ob->stats->hp (-10000); #] if they survive this they deserved to live
104	root	1.86	my $killer = cf::arch::get "killer_login"; $pl->killer ($killer); $killer->destroy;
105	root	1.48	} else {
106	root	1.81	($map, $x, $y) = $pl->savebed;
107
108	root	1.64	$ob->message (
109	root	1.77	"You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
110			. "Fortunately, some friendly dwellers found you, checked your passport, and brought you to safety. "
111			. "Better use a savebed next time, much worse things could have happened... "
112			. "H<You disconnected without having used a savebed. When you do that for too long, you might die.>",
113	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
114	root	1.48	);
115			}
116	root	1.77	} else {
117			$ob->message (
118			"You didn't use a bed to reality to leave this realm. This is very dangerous, "
119			. "as lots of things could happen when you leave by other means, such as cave-ins, "
120			. "or monsters suddenly snapping your body. Better use a savebed next time. "
121			. "H<Always apply a bed of reality to disconnect from the server.>",
122	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
123	root	1.77	);
124	root	1.48	}
125	root	1.11	}
126	root	1.48
127	root	1.100	$ob->goto ($map, $x, $y);
128	root	1.11	}
129
130	root	1.110	sub encode_password($) {
131	root	1.127	unpack "H*", Deliantra::Util::hash_pw $_[0]
132	root	1.110	}
133
134			sub compare_password($$) {
135			my ($pass, $token) = @_;
136
137	root	1.118	if ($token =~ /!!(.*)/) {
138			return +(substr $pass, 0, 8) eq pack "H*", $1;
139			} elsif ($token =~ /!(.*)/) {
140	root	1.110	return $pass eq pack "H*", $1;
141			} else {
142			return $token eq crypt $pass, $token;
143			}
144	elmex	1.106	}
145
146	root	1.111	# delete a player directory
147	root	1.1	sub nuke_playerdir {
148			my ($user) = @_;
149
150	root	1.111	my $lock = cf::lock_acquire "ext::login::nuke_playerdir";
151
152	root	1.71	my $temp = "$PLAYERDIR/~$Coro::current~deleting~";
153	root	1.111	aio_rename "$PLAYERDIR/$user", $temp;
154			IO::AIO::aio_rmtree $temp;
155	root	1.1	}
156
157	root	1.125	sub login {
158	root	1.119	my ($pl) = @_;
159
160	root	1.125	# handle character creation, if neccessary
161			# the rest of this function is character creation
162	root	1.119
163	root	1.125	my $ns = $pl->ns;
164			my $ob = $pl->ob;
165	root	1.119
166	root	1.127	if ($pl->{chargen} eq "init") {
167			$ob->goto ($pl->maplevel, $ob->x, $ob->y);
168	root	1.119
169	root	1.125	# create the playerdir, if necessary, as chargen_race_done did it before
170			# presumably because of unique maps
171			aio_mkdir playerdir $pl, 0770;
172	root	1.127	delete $pl->{deny_save}; # set by new
173	root	1.125	$pl->save;
174	root	1.119
175	root	1.125	$pl->{chargen} = "stats";
176			}
177	root	1.119
178	root	1.125	if ($pl->{chargen} eq "stats") {
179			while () {
180			$ob->update_stats;
181			$pl->save_stats;
182
183			my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
184			"[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
185
186			if ($res =~ /^[Nn]/) {
187			last;
188			} elsif ($res > 0 && $res <= 7) {
189			my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
190	root	1.119
191	root	1.125	if ($swap > 0 && $swap <= 7) {
192			$ob->swap_stats ($res - 1, $swap - 1);
193			}
194			} else {
195			$ob->roll_stats;
196			}
197	root	1.119
198	root	1.125	Coro::Timer::sleep 0.05;
199	root	1.119	}
200
201	root	1.125	$ob->set_animation (2);
202			$ob->add_statbonus;
203
204			$pl->{chargen} = "race";
205	root	1.119	}
206
207	root	1.125	if ($pl->{chargen} eq "race") {
208			while () {
209			$ns->send_msg ("chargen-race-title", ucfirst $pl->title, -1);
210			my $msg = $ob->msg;
211			$msg =~ s/(?<=\S)\n(?=\S)/ /g;
212			$ns->send_msg ("chargen-race-description", $msg, cf::NDI_BLUE);
213	root	1.119
214	root	1.125	my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
215			"Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n";
216	root	1.119
217	root	1.125	last if $res =~ /[dD]/;
218	root	1.119
219	root	1.125	$pl->chargen_race_next;
220			Coro::Timer::sleep 0.05;
221			}
222
223			$pl->chargen_race_done;
224			$pl->{chargen} = "gender";
225			}
226	root	1.119
227	root	1.125	if ($pl->{chargen} eq "race") {
228			while () {
229			my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
230			"Now choose a gender.\nPress 'f' to become female, and 'm' to become male.\n";
231
232			if ($res =~ /^[fF]/) {
233			$pl->gender (1);
234			last;
235			} elsif ($res =~ /^[mM]/) {
236			$pl->gender (0);
237			last;
238			}
239			Coro::Timer::sleep 0.05;
240			}
241			$pl->{chargen} = "done";
242	root	1.119	}
243
244	root	1.125	$ns->state (cf::ST_PLAYING);
245	root	1.119
246	root	1.125	if ($pl->{chargen} eq "done") {
247			# XXX: Workaround for delayed client ext protocol handshake
248			$pl->esrv_new_player;
249	root	1.119
250	root	1.125	$pl->{chargen} = "done";
251	root	1.119	}
252
253	root	1.132	$ns->update_command_faces;
254
255	root	1.119	$ob->reply (undef, "Welcome to Deliantra!");
256
257	root	1.125	if (0 < Coro::AIO::aio_load "$cf::CONFDIR/motd", my $motd) {
258			$pl->ns->send_msg ("c/motd" => $motd, cf::NDI_CLEAR);
259			}
260			}
261
262			sub chargen {
263	root	1.127	my ($ns, $user, $hash) = @_;
264	root	1.125
265			# just to make sure nothing is left over
266			# normally, nothing is there.
267			nuke_playerdir $user;
268
269			my $pl = cf::player::new $user;
270	root	1.127	$pl->password (unpack "H*", $hash);
271	root	1.125	$pl->connect ($ns);
272	root	1.119
273	root	1.125	$pl->{chargen} = "init";
274
275			login $pl;
276	root	1.119	}
277
278	root	1.60	cf::client->attach (on_addme => sub {
279	root	1.1	my ($ns) = @_;
280
281	root	1.123	$ns->{addme}++ and return $ns->destroy;
282	root	1.1
283	root	1.10	$ns->async (sub {
284	root	1.72	$Coro::current->{desc} = "addme init";
285
286	root	1.1	my ($user, $pass);
287
288			$ns->send_packet ("addme_success");
289
290			for (;;) {
291	root	1.129	delete $ns->{login_guard};
292
293	root	1.131	send_log $ns,
294	root	1.1	"Please enter your username now. If you are a new user, "
295			. "make one up that describes your character best. "
296			. "Only letters and digits are allowed, though.",
297	root	1.130	cf::NDI_BLUE \| cf::NDI_REPLY
298	root	1.131	;
299	root	1.1
300			# read username
301			while () {
302	root	1.89	$user = query $ns, 0, "What is your name? (login names are case-sensitive)\n:";
303	root	1.3
304	root	1.129	if ($user =~ $VALID_LOGIN) {
305	root	1.3	last;
306			} else {
307	root	1.131	send_log $ns,
308	root	1.3	"Your username contains illegal characters "
309			. "(only a-z, A-Z and 0-9 are allowed), "
310	root	1.92	. "or is not between 3 and 20 characters in length.",
311	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
312	root	1.131	;
313	root	1.3	}
314	root	1.61	Coro::Timer::sleep 0.4;
315	root	1.1	}
316
317	root	1.129	$Coro::current->{desc} = "addme($user)";
318	root	1.72
319	root	1.131	send_log $ns,
320	root	1.1	"Welcome $user, please enter your password now. "
321			. "New users should now choose a password. "
322			. "Anything your client lets you enter is fine.",
323	root	1.130	cf::NDI_BLUE \| cf::NDI_REPLY
324	root	1.131	;
325	root	1.1
326			# read password
327			while () {
328			$pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
329			last if $pass =~ /.../;
330	root	1.131	send_log $ns,
331	root	1.1	"Try to use at least three characters as your password please, "
332			. "that cannot be too much to ask for :)",
333	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
334	root	1.131	;
335	root	1.61	Coro::Timer::sleep 0.4;
336	root	1.1	}
337
338	root	1.129	$ns->{login_guard} = login_guard $user
339			or do {
340	root	1.131	send_log $ns,
341	root	1.129	"That user is already logged in (or is logging in)."
342			. "Chose another, or wait till the other session has ended.",
343	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
344	root	1.131	;
345	root	1.129	next;
346			};
347	root	1.72
348	root	1.1	# try to read the user file and check the password
349	root	1.19	if (my $pl = cf::player::find $user) {
350			aio_stat $pl->path and next;
351			my $mtime = (stat _)[9];
352	root	1.110	my $token = $pl->password;
353	root	1.1
354	root	1.110	if ($cf::CFG{ext_login_nocheck} or compare_password $pass, $token) {
355	root	1.119	# player exists and passwords match - we can proceed
356
357	root	1.1	# password matches, wonderful
358	root	1.11	my $pl = cf::player::find $user or next;
359	root	1.1	$pl->connect ($ns);
360	root	1.48	enter_map $pl;
361	root	1.125	login $pl;
362	root	1.119	return;
363	root	1.19	} elsif (can_cleanup $pl, $mtime) {
364	root	1.1	Coro::Timer::sleep 1;
365
366	root	1.131	send_log $ns,
367	root	1.3	"Player exists, but password does not match. If this is your account, "
368			. "please try again. If not, you can now decide to take over this account "
369	root	1.1	. "because it has not been in-use for some time.",
370	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
371	root	1.131	;
372	root	1.1
373			(query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
374			or next;
375
376			# check if the file hasn't changed
377	root	1.11	aio_stat cf::player::path $user and next;
378	root	1.1	$mtime == (stat _)[9] or next;
379
380	root	1.19	$pl->quit_character;
381	root	1.1
382			# fall through to creation
383			} else {
384			Coro::Timer::sleep 1;
385
386	root	1.131	send_log $ns,
387	root	1.1	"Wrong username or password. Please try again "
388			. "(check for Numlock and other semi-obvious error sources).",
389	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
390	root	1.131	;
391	root	1.1	next;
392			}
393	root	1.37	} else {
394			# unable to load the playerfile:
395	root	1.114	# check whether the player dir exists, which means the file is corrupted or
396	root	1.37	# something very similar.
397			if (!aio_stat cf::player::playerdir $user) {
398	root	1.131	send_log $ns,
399	root	1.37	"Unable to retrieve this player. It might be a locked or broken account. "
400			. "If this is your account, ask a dungeon master for assistance. "
401			. "Otherwise choose a different login name.",
402	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
403	root	1.131	;
404	root	1.37	next;
405			}
406	root	1.1	}
407
408	root	1.120	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
409
410			if ($pass2 ne $pass) {
411	root	1.131	send_log $ns,
412	root	1.120	"The passwords do not match, please try again.",
413	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
414	root	1.131	;
415	root	1.120	Coro::Timer::sleep 0.5;
416			next;
417			}
418
419	root	1.1	last;
420			}
421	root	1.101
422	root	1.125	chargen $ns, $user, Deliantra::Util::hash_pw $pass;
423	root	1.1	});
424	root	1.60	});
425	root	1.1
426	root	1.121	cf::client->attach (
427			on_version => sub {
428			my ($ns, $arg) = @_;
429
430	root	1.125	# perl probably uses lrand48, which is not secure at all
431			# maybe require linux and use /dev/urandom.
432	root	1.123	$ns->{nonces} = [map { join "", map { chr rand 256 } 0..63 } 1..2];
433			$ns->ext_msg (nonces => @{ $ns->{nonces} });
434	root	1.121	},
435			);
436
437	root	1.125	cf::register_async_exticmd create_login => sub {
438			my ($ns, $reply, $user, $pass) = @_;
439
440			$ns->{addme}++ and return $ns->destroy;
441
442			$ns->async (sub {
443			my $fail = sub {
444			$reply->(0, $_[0]);
445			$ns->flush; # does not ensure that the data reaches the client - TODO
446			# need to do this in another thread, as this one gets canceled
447			Coro::async_pool {
448			Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
449	root	1.126	$ns->destroy if $ns->valid;
450	root	1.125	};
451			Coro::schedule; # do the destroy, should not return
452			};
453
454			$user =~ $VALID_LOGIN
455			or return $fail (
456			"Your username contains illegal characters (only a-z, A-Z and 0-9 are allowed), "
457			. "or is not between 3 and 20 characters in length."
458			);
459
460	root	1.129	$ns->{login_guard} = login_guard $user
461			or return $fail->("User name '$user' is in use - try another login name.");
462
463	root	1.125	cf::player::find $user
464	root	1.129	and return $fail->("User name '$user' is already registered - choose another login name.");
465	root	1.125
466	root	1.128	$reply->(1, "Account Created");
467
468	root	1.127	chargen $ns, $user, $pass;
469	root	1.125	});
470			};
471	root	1.121
472			cf::register_async_exticmd login => sub {
473			my ($ns, $reply, $user, $hash) = @_;
474
475	root	1.123	$ns->{addme}++ and return $ns->destroy;
476
477			$ns->async (sub {
478	root	1.129	$Coro::current->{desc} = "login($user)";
479	root	1.123
480			my $fail = sub {
481			$reply->(0, $_[0]);
482			$ns->flush; # does not ensure that the data reaches the client - TODO
483			# need to do this in another thread, as this one gets canceled
484			Coro::async_pool {
485			Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
486	root	1.126	$ns->destroy if $ns->valid;
487	root	1.123	};
488			Coro::schedule; # do the destroy, should not return
489			};
490
491	root	1.129	$ns->{login_guard} = login_guard $user
492			or return $fail->("User '$user' is currently playing or logging in in another session. If that is your "
493			. "user name, make sure you are not running two clients. When in doubt, reboot.");
494
495	root	1.123	# try to read the user file and check the password
496			my $pl = cf::player::find $user
497			or return $fail->("User '$user' does not exist - wrong spelling?");
498
499			aio_stat $pl->path
500			and return $ns->destroy;
501
502			my $mtime = (stat _)[9];
503			my $token = $pl->password;
504
505			$token = $token =~ /^!/
506			? Deliantra::Util::hash_pw pack "H*", substr $token, 1
507			: pack "H*", $token;
508
509			$token = Deliantra::Util::auth_pw $token, $ns->{nonces}[0], $ns->{nonces}[1];
510
511			$token eq $hash
512			or $cf::CFG{ext_login_nocheck}
513			or return $fail->("User exists, but the password doesn't match - check your spelling, NumLock/CapsLock etc.");
514
515			# player exists and passwords match - we can proceed
516
517	root	1.125	$reply->(1, "Success");
518
519	root	1.123	$pl->connect ($ns);
520			enter_map $pl;
521	root	1.125	login $pl;
522	root	1.123	});
523	root	1.121	};
524
525	elmex	1.106	cf::register_command password => sub {
526			my ($pl, $arg) = @_;
527
528	elmex	1.112	unless ($pl->flag (cf::FLAG_WIZ)) {
529			$pl->message (
530			"The password can currently only changed by a DM.",
531			cf::NDI_UNIQUE \| cf::NDI_REPLY);
532			return;
533			}
534
535	root	1.124	$pl->message (#d#
536			"Passwords cannot currently be changed.",#d#
537			cf::NDI_UNIQUE \| cf::NDI_REPLY);#d#
538			return;#d#
539
540	elmex	1.106	my (@args) = split /\s+/, $arg;
541	elmex	1.112	my ($player, $new_pw) = @args;
542	elmex	1.106
543			if ($pl->flag (cf::FLAG_WIZ) && $player eq '') {
544			$pl->message (
545			"Usage: password <player> [<new password>]",
546			cf::NDI_UNIQUE \| cf::NDI_REPLY);
547			return;
548			}
549
550	elmex	1.112	if ($new_pw eq '') {
551			$new_pw =
552			join '',
553			map { ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[(cf::rndm 64)] }
554			1..9;
555			}
556	elmex	1.106
557	elmex	1.112	cf::async {
558			my $plc = cf::player::find $player;
559			if ($plc) {
560			$plc->password (encode_password $new_pw);
561	elmex	1.106	$pl->message (
562	elmex	1.112	"Ok, changed password of '$player' to '$new_pw'!",
563	elmex	1.106	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
564			} else {
565			$pl->message (
566	elmex	1.112	"Fail! Couldn't set password for '$player', "
567			. "he doesn't seem to exist!",
568	elmex	1.106	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
569			}
570	elmex	1.112	};
571	elmex	1.106	};
572
573	root	1.12	cf::register_command quit => sub {
574			my ($ob, $arg) = @_;
575
576	root	1.95	$ob->send_msg (undef,
577			"Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
578			. "If you are sure you want to do this, then use the quit_character command instead of quit.",
579			cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
580	root	1.12	};
581
582			cf::register_command quit_character => sub {
583			my ($ob, $arg) = @_;
584
585			my $pl = $ob->contr;
586
587			$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
588			if ($_[0] !~ /^[yY]/) {
589	root	1.95	$ob->send_msg (undef, "Ok, not not quitting then.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
590	root	1.12	} else {
591	root	1.95	$ob->send_msg (undef, "Ok, quitting, hope to see you again.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
592	root	1.105	cf::async {
593			$pl->quit_character;
594			};
595	root	1.12	}
596			});
597			};
598	root	1.11
599	root	1.1	cf::object->attach (
600			type => cf::SAVEBED,
601			on_apply => sub {
602			my ($bed, $ob) = @_;
603
604			return cf::override 0 unless $ob->type == cf::PLAYER;
605
606	root	1.15	my $pl = $ob->contr;
607	root	1.11
608	root	1.1	# update respawn position
609	root	1.11	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
610	root	1.1
611	root	1.111	cf::async {
612			my $killer = cf::arch::get "killer_logout"; $pl->killer ($killer); $killer->destroy;
613			ext::highscore::check $ob;
614
615			$pl->save;
616	root	1.1
617	root	1.111	$ob->send_msg ($cf::SAY_CHANNEL => "In the future, you will wake up here when you die.", cf::NDI_DEF \| cf::NDI_REPLY);
618	root	1.1
619	root	1.115	my $ns = $pl->ns
620			or return;
621
622			$ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
623	root	1.111	if ($_[0] !~ /^[yY]/) {
624			$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
625			$pl->deactivate;
626			$pl->ns->destroy;
627			}
628			});
629			};
630	root	1.1	},
631			);
632
633	root	1.8	cf::player->attach (
634			on_login => sub {
635			my ($pl) = @_;
636			my $name = $pl->ob->name;
637
638			$_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
639			},
640			on_logout => sub {
641			my ($pl, $cleanly) = @_;
642			my $name = $pl->ob->name;
643
644			if ($cleanly) {
645			$_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
646			} else {
647			$_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
648	root	1.79	$pl->{unclean_save} = $cf::RUNTIME
649			unless safe_spot $pl;
650	root	1.8	}
651			},
652			);
653