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 {
   return 0; # highscore list is not cleared out, rethink

   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 encode_password $pass;
   }
}

# 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:	1.134
Committed:	Tue Feb 20 14:28:27 2018 UTC (6 years, 3 months ago) by root
Branch:	MAIN
Changes since 1.133:	+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	1.134	return 0; # highscore list is not cleared out, rethink
30
31	root	1.19	my ($pl, $mtime) = @_;
32	root	1.1
33			my $age = time - $mtime;
34	root	1.19	my $level = $pl->ob->level;
35	root	1.1
36			($level <= 3 && $age > 7 * 86400) # 7 days for level 0..3
37			\|\| ($level <= 9 && $age > 90 * 86400) # 3 months for level 4..9
38			\|\| ($level <= 20 && $age > 180 * 86400) # 6 months for level 10..20
39			\|\| $age > 700 * 86400 # 2 years for everybody else
40			}
41
42	root	1.129	# return a guard object for a lock on the given username, if available
43			sub login_guard {
44			my ($user) = @_;
45	root	1.1
46	root	1.129	exists $LOGIN_LOCK{$user}
47			and return undef;
48	root	1.1
49	root	1.129	cf::player::find_active $user
50			and return undef;
51	root	1.1
52	root	1.129	undef $LOGIN_LOCK{$user};
53			Guard::guard { delete $LOGIN_LOCK{$user} }
54	root	1.1	}
55
56	root	1.79	sub safe_spot($) {
57			my ($pl) = @_;
58
59			my $ob = $pl->ob;
60	root	1.76
61	root	1.79	my $m = $ob->map
62			or return;
63			my $x = $ob->x;
64			my $y = $ob->y;
65
66	root	1.113	# never happens normally, but helps when shell users make mistakes
67	root	1.116	$m->linkable
68	root	1.113	or return 1;
69
70	root	1.76	scalar grep $_->type == cf::SAVEBED, $m->at ($x, $y)
71			}
72
73	root	1.48	sub enter_map {
74	root	1.11	my ($pl) = @_;
75
76	root	1.62	my $ob = $pl->ob;
77
78	root	1.48	my ($map, $x, $y)
79	root	1.62	= $ob->{_link_pos}
80			? @{delete $ob->{_link_pos}}
81			: ($pl->maplevel, $ob->x, $ob->y);
82	root	1.48
83	root	1.62	$ob->enter_link;
84	root	1.48
85	root	1.77	my $m = cf::map::find $map;
86			my $time = delete $pl->{unclean_save};
87
88	root	1.79	if ($time && $m) {
89	root	1.77	if ($time < $m->{instantiate_time}) {
90			# the map was reset in the meantime
91			my $age = $cf::RUNTIME - $time;
92
93	root	1.107	cf::info $ob->name, " map reset after logout, logout age $age (>= $MAX_DISCONNECT_TIME)\n";#d#
94	root	1.77
95			if ($age >= $MAX_DISCONNECT_TIME) {
96			$ob->message (
97			"You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
98			. "Unfortunately, nobody was near to help you when the monsters arrived to eat you. "
99			. "Maybe you can find comfort in the thought that your body was quite satisfying in taste... "
100			. "H<You disconnected too long without having used a savebed.>",
101	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
102	root	1.77	);
103			# kill them.
104			# reminds me of the famous badness 10000 syndrome...
105			$ob->stats->hp (-10000); #] if they survive this they deserved to live
106	root	1.86	my $killer = cf::arch::get "killer_login"; $pl->killer ($killer); $killer->destroy;
107	root	1.48	} else {
108	root	1.81	($map, $x, $y) = $pl->savebed;
109
110	root	1.64	$ob->message (
111	root	1.77	"You didn't use a bed to reality to leave this realm, leaving your body in great danger. "
112			. "Fortunately, some friendly dwellers found you, checked your passport, and brought you to safety. "
113			. "Better use a savebed next time, much worse things could have happened... "
114			. "H<You disconnected without having used a savebed. When you do that for too long, you might die.>",
115	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
116	root	1.48	);
117			}
118	root	1.77	} else {
119			$ob->message (
120			"You didn't use a bed to reality to leave this realm. This is very dangerous, "
121			. "as lots of things could happen when you leave by other means, such as cave-ins, "
122			. "or monsters suddenly snapping your body. Better use a savebed next time. "
123			. "H<Always apply a bed of reality to disconnect from the server.>",
124	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
125	root	1.77	);
126	root	1.48	}
127	root	1.11	}
128	root	1.48
129	root	1.100	$ob->goto ($map, $x, $y);
130	root	1.11	}
131
132	root	1.110	sub encode_password($) {
133	root	1.127	unpack "H*", Deliantra::Util::hash_pw $_[0]
134	root	1.110	}
135
136			sub compare_password($$) {
137			my ($pass, $token) = @_;
138
139	root	1.118	if ($token =~ /!!(.*)/) {
140			return +(substr $pass, 0, 8) eq pack "H*", $1;
141			} elsif ($token =~ /!(.*)/) {
142	root	1.110	return $pass eq pack "H*", $1;
143			} else {
144	root	1.133	return $token eq encode_password $pass;
145	root	1.110	}
146	elmex	1.106	}
147
148	root	1.111	# delete a player directory
149	root	1.1	sub nuke_playerdir {
150			my ($user) = @_;
151
152	root	1.111	my $lock = cf::lock_acquire "ext::login::nuke_playerdir";
153
154	root	1.71	my $temp = "$PLAYERDIR/~$Coro::current~deleting~";
155	root	1.111	aio_rename "$PLAYERDIR/$user", $temp;
156			IO::AIO::aio_rmtree $temp;
157	root	1.1	}
158
159	root	1.125	sub login {
160	root	1.119	my ($pl) = @_;
161
162	root	1.125	# handle character creation, if neccessary
163			# the rest of this function is character creation
164	root	1.119
165	root	1.125	my $ns = $pl->ns;
166			my $ob = $pl->ob;
167	root	1.119
168	root	1.127	if ($pl->{chargen} eq "init") {
169			$ob->goto ($pl->maplevel, $ob->x, $ob->y);
170	root	1.119
171	root	1.125	# create the playerdir, if necessary, as chargen_race_done did it before
172			# presumably because of unique maps
173			aio_mkdir playerdir $pl, 0770;
174	root	1.127	delete $pl->{deny_save}; # set by new
175	root	1.125	$pl->save;
176	root	1.119
177	root	1.125	$pl->{chargen} = "stats";
178			}
179	root	1.119
180	root	1.125	if ($pl->{chargen} eq "stats") {
181			while () {
182			$ob->update_stats;
183			$pl->save_stats;
184
185			my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
186			"[y] to roll new stats [n] to use stats\n[1-7] [1-7] to swap stats.\nRoll again (y/n/1-7)?";
187
188			if ($res =~ /^[Nn]/) {
189			last;
190			} elsif ($res > 0 && $res <= 7) {
191			my $swap = query $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
192	root	1.119
193	root	1.125	if ($swap > 0 && $swap <= 7) {
194			$ob->swap_stats ($res - 1, $swap - 1);
195			}
196			} else {
197			$ob->roll_stats;
198			}
199	root	1.119
200	root	1.125	Coro::Timer::sleep 0.05;
201	root	1.119	}
202
203	root	1.125	$ob->set_animation (2);
204			$ob->add_statbonus;
205
206			$pl->{chargen} = "race";
207	root	1.119	}
208
209	root	1.125	if ($pl->{chargen} eq "race") {
210			while () {
211			$ns->send_msg ("chargen-race-title", ucfirst $pl->title, -1);
212			my $msg = $ob->msg;
213			$msg =~ s/(?<=\S)\n(?=\S)/ /g;
214			$ns->send_msg ("chargen-race-description", $msg, cf::NDI_BLUE);
215	root	1.119
216	root	1.125	my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
217			"Now choose a character.\nPress any key to change outlook.\nPress `d' when you're pleased.\n";
218	root	1.119
219	root	1.125	last if $res =~ /[dD]/;
220	root	1.119
221	root	1.125	$pl->chargen_race_next;
222			Coro::Timer::sleep 0.05;
223			}
224
225			$pl->chargen_race_done;
226			$pl->{chargen} = "gender";
227			}
228	root	1.119
229	root	1.125	if ($pl->{chargen} eq "race") {
230			while () {
231			my $res = query $ns, cf::CS_QUERY_SINGLECHAR,
232			"Now choose a gender.\nPress 'f' to become female, and 'm' to become male.\n";
233
234			if ($res =~ /^[fF]/) {
235			$pl->gender (1);
236			last;
237			} elsif ($res =~ /^[mM]/) {
238			$pl->gender (0);
239			last;
240			}
241			Coro::Timer::sleep 0.05;
242			}
243			$pl->{chargen} = "done";
244	root	1.119	}
245
246	root	1.125	$ns->state (cf::ST_PLAYING);
247	root	1.119
248	root	1.125	if ($pl->{chargen} eq "done") {
249			# XXX: Workaround for delayed client ext protocol handshake
250			$pl->esrv_new_player;
251	root	1.119
252	root	1.125	$pl->{chargen} = "done";
253	root	1.119	}
254
255	root	1.132	$ns->update_command_faces;
256
257	root	1.119	$ob->reply (undef, "Welcome to Deliantra!");
258
259	root	1.125	if (0 < Coro::AIO::aio_load "$cf::CONFDIR/motd", my $motd) {
260			$pl->ns->send_msg ("c/motd" => $motd, cf::NDI_CLEAR);
261			}
262			}
263
264			sub chargen {
265	root	1.127	my ($ns, $user, $hash) = @_;
266	root	1.125
267			# just to make sure nothing is left over
268			# normally, nothing is there.
269			nuke_playerdir $user;
270
271			my $pl = cf::player::new $user;
272	root	1.127	$pl->password (unpack "H*", $hash);
273	root	1.125	$pl->connect ($ns);
274	root	1.119
275	root	1.125	$pl->{chargen} = "init";
276
277			login $pl;
278	root	1.119	}
279
280	root	1.60	cf::client->attach (on_addme => sub {
281	root	1.1	my ($ns) = @_;
282
283	root	1.123	$ns->{addme}++ and return $ns->destroy;
284	root	1.1
285	root	1.10	$ns->async (sub {
286	root	1.72	$Coro::current->{desc} = "addme init";
287
288	root	1.1	my ($user, $pass);
289
290			$ns->send_packet ("addme_success");
291
292			for (;;) {
293	root	1.129	delete $ns->{login_guard};
294
295	root	1.131	send_log $ns,
296	root	1.1	"Please enter your username now. If you are a new user, "
297			. "make one up that describes your character best. "
298			. "Only letters and digits are allowed, though.",
299	root	1.130	cf::NDI_BLUE \| cf::NDI_REPLY
300	root	1.131	;
301	root	1.1
302			# read username
303			while () {
304	root	1.89	$user = query $ns, 0, "What is your name? (login names are case-sensitive)\n:";
305	root	1.3
306	root	1.129	if ($user =~ $VALID_LOGIN) {
307	root	1.3	last;
308			} else {
309	root	1.131	send_log $ns,
310	root	1.3	"Your username contains illegal characters "
311			. "(only a-z, A-Z and 0-9 are allowed), "
312	root	1.92	. "or is not between 3 and 20 characters in length.",
313	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
314	root	1.131	;
315	root	1.3	}
316	root	1.61	Coro::Timer::sleep 0.4;
317	root	1.1	}
318
319	root	1.129	$Coro::current->{desc} = "addme($user)";
320	root	1.72
321	root	1.131	send_log $ns,
322	root	1.1	"Welcome $user, please enter your password now. "
323			. "New users should now choose a password. "
324			. "Anything your client lets you enter is fine.",
325	root	1.130	cf::NDI_BLUE \| cf::NDI_REPLY
326	root	1.131	;
327	root	1.1
328			# read password
329			while () {
330			$pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
331			last if $pass =~ /.../;
332	root	1.131	send_log $ns,
333	root	1.1	"Try to use at least three characters as your password please, "
334			. "that cannot be too much to ask for :)",
335	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
336	root	1.131	;
337	root	1.61	Coro::Timer::sleep 0.4;
338	root	1.1	}
339
340	root	1.129	$ns->{login_guard} = login_guard $user
341			or do {
342	root	1.131	send_log $ns,
343	root	1.129	"That user is already logged in (or is logging in)."
344			. "Chose another, or wait till the other session has ended.",
345	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
346	root	1.131	;
347	root	1.129	next;
348			};
349	root	1.72
350	root	1.1	# try to read the user file and check the password
351	root	1.19	if (my $pl = cf::player::find $user) {
352			aio_stat $pl->path and next;
353			my $mtime = (stat _)[9];
354	root	1.110	my $token = $pl->password;
355	root	1.1
356	root	1.110	if ($cf::CFG{ext_login_nocheck} or compare_password $pass, $token) {
357	root	1.119	# player exists and passwords match - we can proceed
358
359	root	1.1	# password matches, wonderful
360	root	1.11	my $pl = cf::player::find $user or next;
361	root	1.1	$pl->connect ($ns);
362	root	1.48	enter_map $pl;
363	root	1.125	login $pl;
364	root	1.119	return;
365	root	1.19	} elsif (can_cleanup $pl, $mtime) {
366	root	1.1	Coro::Timer::sleep 1;
367
368	root	1.131	send_log $ns,
369	root	1.3	"Player exists, but password does not match. If this is your account, "
370			. "please try again. If not, you can now decide to take over this account "
371	root	1.1	. "because it has not been in-use for some time.",
372	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
373	root	1.131	;
374	root	1.1
375			(query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
376			or next;
377
378			# check if the file hasn't changed
379	root	1.11	aio_stat cf::player::path $user and next;
380	root	1.1	$mtime == (stat _)[9] or next;
381
382	root	1.19	$pl->quit_character;
383	root	1.1
384			# fall through to creation
385			} else {
386			Coro::Timer::sleep 1;
387
388	root	1.131	send_log $ns,
389	root	1.1	"Wrong username or password. Please try again "
390			. "(check for Numlock and other semi-obvious error sources).",
391	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
392	root	1.131	;
393	root	1.1	next;
394			}
395	root	1.37	} else {
396			# unable to load the playerfile:
397	root	1.114	# check whether the player dir exists, which means the file is corrupted or
398	root	1.37	# something very similar.
399			if (!aio_stat cf::player::playerdir $user) {
400	root	1.131	send_log $ns,
401	root	1.37	"Unable to retrieve this player. It might be a locked or broken account. "
402			. "If this is your account, ask a dungeon master for assistance. "
403			. "Otherwise choose a different login name.",
404	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
405	root	1.131	;
406	root	1.37	next;
407			}
408	root	1.1	}
409
410	root	1.120	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
411
412			if ($pass2 ne $pass) {
413	root	1.131	send_log $ns,
414	root	1.120	"The passwords do not match, please try again.",
415	root	1.130	cf::NDI_RED \| cf::NDI_REPLY
416	root	1.131	;
417	root	1.120	Coro::Timer::sleep 0.5;
418			next;
419			}
420
421	root	1.1	last;
422			}
423	root	1.101
424	root	1.125	chargen $ns, $user, Deliantra::Util::hash_pw $pass;
425	root	1.1	});
426	root	1.60	});
427	root	1.1
428	root	1.121	cf::client->attach (
429			on_version => sub {
430			my ($ns, $arg) = @_;
431
432	root	1.125	# perl probably uses lrand48, which is not secure at all
433			# maybe require linux and use /dev/urandom.
434	root	1.123	$ns->{nonces} = [map { join "", map { chr rand 256 } 0..63 } 1..2];
435			$ns->ext_msg (nonces => @{ $ns->{nonces} });
436	root	1.121	},
437			);
438
439	root	1.125	cf::register_async_exticmd create_login => sub {
440			my ($ns, $reply, $user, $pass) = @_;
441
442			$ns->{addme}++ and return $ns->destroy;
443
444			$ns->async (sub {
445			my $fail = sub {
446			$reply->(0, $_[0]);
447			$ns->flush; # does not ensure that the data reaches the client - TODO
448			# need to do this in another thread, as this one gets canceled
449			Coro::async_pool {
450			Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
451	root	1.126	$ns->destroy if $ns->valid;
452	root	1.125	};
453			Coro::schedule; # do the destroy, should not return
454			};
455
456			$user =~ $VALID_LOGIN
457			or return $fail (
458			"Your username contains illegal characters (only a-z, A-Z and 0-9 are allowed), "
459			. "or is not between 3 and 20 characters in length."
460			);
461
462	root	1.129	$ns->{login_guard} = login_guard $user
463			or return $fail->("User name '$user' is in use - try another login name.");
464
465	root	1.125	cf::player::find $user
466	root	1.129	and return $fail->("User name '$user' is already registered - choose another login name.");
467	root	1.125
468	root	1.128	$reply->(1, "Account Created");
469
470	root	1.127	chargen $ns, $user, $pass;
471	root	1.125	});
472			};
473	root	1.121
474			cf::register_async_exticmd login => sub {
475			my ($ns, $reply, $user, $hash) = @_;
476
477	root	1.123	$ns->{addme}++ and return $ns->destroy;
478
479			$ns->async (sub {
480	root	1.129	$Coro::current->{desc} = "login($user)";
481	root	1.123
482			my $fail = sub {
483			$reply->(0, $_[0]);
484			$ns->flush; # does not ensure that the data reaches the client - TODO
485			# need to do this in another thread, as this one gets canceled
486			Coro::async_pool {
487			Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
488	root	1.126	$ns->destroy if $ns->valid;
489	root	1.123	};
490			Coro::schedule; # do the destroy, should not return
491			};
492
493	root	1.129	$ns->{login_guard} = login_guard $user
494			or return $fail->("User '$user' is currently playing or logging in in another session. If that is your "
495			. "user name, make sure you are not running two clients. When in doubt, reboot.");
496
497	root	1.123	# try to read the user file and check the password
498			my $pl = cf::player::find $user
499			or return $fail->("User '$user' does not exist - wrong spelling?");
500
501			aio_stat $pl->path
502			and return $ns->destroy;
503
504			my $mtime = (stat _)[9];
505			my $token = $pl->password;
506
507			$token = $token =~ /^!/
508			? Deliantra::Util::hash_pw pack "H*", substr $token, 1
509			: pack "H*", $token;
510
511			$token = Deliantra::Util::auth_pw $token, $ns->{nonces}[0], $ns->{nonces}[1];
512
513			$token eq $hash
514			or $cf::CFG{ext_login_nocheck}
515			or return $fail->("User exists, but the password doesn't match - check your spelling, NumLock/CapsLock etc.");
516
517			# player exists and passwords match - we can proceed
518
519	root	1.125	$reply->(1, "Success");
520
521	root	1.123	$pl->connect ($ns);
522			enter_map $pl;
523	root	1.125	login $pl;
524	root	1.123	});
525	root	1.121	};
526
527	elmex	1.106	cf::register_command password => sub {
528			my ($pl, $arg) = @_;
529
530	elmex	1.112	unless ($pl->flag (cf::FLAG_WIZ)) {
531			$pl->message (
532			"The password can currently only changed by a DM.",
533			cf::NDI_UNIQUE \| cf::NDI_REPLY);
534			return;
535			}
536
537	root	1.124	$pl->message (#d#
538			"Passwords cannot currently be changed.",#d#
539			cf::NDI_UNIQUE \| cf::NDI_REPLY);#d#
540			return;#d#
541
542	elmex	1.106	my (@args) = split /\s+/, $arg;
543	elmex	1.112	my ($player, $new_pw) = @args;
544	elmex	1.106
545			if ($pl->flag (cf::FLAG_WIZ) && $player eq '') {
546			$pl->message (
547			"Usage: password <player> [<new password>]",
548			cf::NDI_UNIQUE \| cf::NDI_REPLY);
549			return;
550			}
551
552	elmex	1.112	if ($new_pw eq '') {
553			$new_pw =
554			join '',
555			map { ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[(cf::rndm 64)] }
556			1..9;
557			}
558	elmex	1.106
559	elmex	1.112	cf::async {
560			my $plc = cf::player::find $player;
561			if ($plc) {
562			$plc->password (encode_password $new_pw);
563	elmex	1.106	$pl->message (
564	elmex	1.112	"Ok, changed password of '$player' to '$new_pw'!",
565	elmex	1.106	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
566			} else {
567			$pl->message (
568	elmex	1.112	"Fail! Couldn't set password for '$player', "
569			. "he doesn't seem to exist!",
570	elmex	1.106	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
571			}
572	elmex	1.112	};
573	elmex	1.106	};
574
575	root	1.12	cf::register_command quit => sub {
576			my ($ob, $arg) = @_;
577
578	root	1.95	$ob->send_msg (undef,
579			"Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
580			. "If you are sure you want to do this, then use the quit_character command instead of quit.",
581			cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
582	root	1.12	};
583
584			cf::register_command quit_character => sub {
585			my ($ob, $arg) = @_;
586
587			my $pl = $ob->contr;
588
589			$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
590			if ($_[0] !~ /^[yY]/) {
591	root	1.95	$ob->send_msg (undef, "Ok, not not quitting then.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
592	root	1.12	} else {
593	root	1.95	$ob->send_msg (undef, "Ok, quitting, hope to see you again.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
594	root	1.105	cf::async {
595			$pl->quit_character;
596			};
597	root	1.12	}
598			});
599			};
600	root	1.11
601	root	1.1	cf::object->attach (
602			type => cf::SAVEBED,
603			on_apply => sub {
604			my ($bed, $ob) = @_;
605
606			return cf::override 0 unless $ob->type == cf::PLAYER;
607
608	root	1.15	my $pl = $ob->contr;
609	root	1.11
610	root	1.1	# update respawn position
611	root	1.11	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
612	root	1.1
613	root	1.111	cf::async {
614			my $killer = cf::arch::get "killer_logout"; $pl->killer ($killer); $killer->destroy;
615			ext::highscore::check $ob;
616
617			$pl->save;
618	root	1.1
619	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);
620	root	1.1
621	root	1.115	my $ns = $pl->ns
622			or return;
623
624			$ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
625	root	1.111	if ($_[0] !~ /^[yY]/) {
626			$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
627			$pl->deactivate;
628			$pl->ns->destroy;
629			}
630			});
631			};
632	root	1.1	},
633			);
634
635	root	1.8	cf::player->attach (
636			on_login => sub {
637			my ($pl) = @_;
638			my $name = $pl->ob->name;
639
640			$_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
641			},
642			on_logout => sub {
643			my ($pl, $cleanly) = @_;
644			my $name = $pl->ob->name;
645
646			if ($cleanly) {
647			$_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
648			} else {
649			$_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
650	root	1.79	$pl->{unclean_save} = $cf::RUNTIME
651			unless safe_spot $pl;
652	root	1.8	}
653			},
654			);
655