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";
   }

   $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:	1.131
Committed:	Mon Nov 19 01:13:49 2012 UTC (11 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.130:	+25 -18 lines
Log Message:	sigh
#	Content
1	#! perl # mandatory depends=highscore
2
3	# login handling
4
5	use Fcntl;
6	use Coro::AIO;
7	use Deliantra::Util ();
8
9	CONF MAX_DISCONNECT_TIME = 3600;
10
11	our $VALID_LOGIN = qr<^[a-zA-Z0-9][a-zA-Z0-9\-_]{2,19}\z>;
12	our %LOGIN_LOCK;
13
14	# 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	sub query {
22	my ($ns, $flags, $text) = @_;
23
24	$ns->query ($flags, $text, Coro::rouse_cb);
25	Coro::rouse_wait
26	}
27
28	sub can_cleanup {
29	my ($pl, $mtime) = @_;
30
31	my $age = time - $mtime;
32	my $level = $pl->ob->level;
33
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	# return a guard object for a lock on the given username, if available
41	sub login_guard {
42	my ($user) = @_;
43
44	exists $LOGIN_LOCK{$user}
45	and return undef;
46
47	cf::player::find_active $user
48	and return undef;
49
50	undef $LOGIN_LOCK{$user};
51	Guard::guard { delete $LOGIN_LOCK{$user} }
52	}
53
54	sub safe_spot($) {
55	my ($pl) = @_;
56
57	my $ob = $pl->ob;
58
59	my $m = $ob->map
60	or return;
61	my $x = $ob->x;
62	my $y = $ob->y;
63
64	# never happens normally, but helps when shell users make mistakes
65	$m->linkable
66	or return 1;
67
68	scalar grep $_->type == cf::SAVEBED, $m->at ($x, $y)
69	}
70
71	sub enter_map {
72	my ($pl) = @_;
73
74	my $ob = $pl->ob;
75
76	my ($map, $x, $y)
77	= $ob->{_link_pos}
78	? @{delete $ob->{_link_pos}}
79	: ($pl->maplevel, $ob->x, $ob->y);
80
81	$ob->enter_link;
82
83	my $m = cf::map::find $map;
84	my $time = delete $pl->{unclean_save};
85
86	if ($time && $m) {
87	if ($time < $m->{instantiate_time}) {
88	# the map was reset in the meantime
89	my $age = $cf::RUNTIME - $time;
90
91	cf::info $ob->name, " map reset after logout, logout age $age (>= $MAX_DISCONNECT_TIME)\n";#d#
92
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	cf::NDI_RED \| cf::NDI_REPLY
100	);
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	my $killer = cf::arch::get "killer_login"; $pl->killer ($killer); $killer->destroy;
105	} else {
106	($map, $x, $y) = $pl->savebed;
107
108	$ob->message (
109	"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	cf::NDI_RED \| cf::NDI_REPLY
114	);
115	}
116	} 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	cf::NDI_RED \| cf::NDI_REPLY
123	);
124	}
125	}
126
127	$ob->goto ($map, $x, $y);
128	}
129
130	sub encode_password($) {
131	unpack "H*", Deliantra::Util::hash_pw $_[0]
132	}
133
134	sub compare_password($$) {
135	my ($pass, $token) = @_;
136
137	if ($token =~ /!!(.*)/) {
138	return +(substr $pass, 0, 8) eq pack "H*", $1;
139	} elsif ($token =~ /!(.*)/) {
140	return $pass eq pack "H*", $1;
141	} else {
142	return $token eq crypt $pass, $token;
143	}
144	}
145
146	# delete a player directory
147	sub nuke_playerdir {
148	my ($user) = @_;
149
150	my $lock = cf::lock_acquire "ext::login::nuke_playerdir";
151
152	my $temp = "$PLAYERDIR/~$Coro::current~deleting~";
153	aio_rename "$PLAYERDIR/$user", $temp;
154	IO::AIO::aio_rmtree $temp;
155	}
156
157	sub login {
158	my ($pl) = @_;
159
160	# handle character creation, if neccessary
161	# the rest of this function is character creation
162
163	my $ns = $pl->ns;
164	my $ob = $pl->ob;
165
166	if ($pl->{chargen} eq "init") {
167	$ob->goto ($pl->maplevel, $ob->x, $ob->y);
168
169	# 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	delete $pl->{deny_save}; # set by new
173	$pl->save;
174
175	$pl->{chargen} = "stats";
176	}
177
178	if ($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 $ns, cf::CS_QUERY_SINGLECHAR, "Swap stat with (will not roll new stats) [1-7]?";
190
191	if ($swap > 0 && $swap <= 7) {
192	$ob->swap_stats ($res - 1, $swap - 1);
193	}
194	} else {
195	$ob->roll_stats;
196	}
197
198	Coro::Timer::sleep 0.05;
199	}
200
201	$ob->set_animation (2);
202	$ob->add_statbonus;
203
204	$pl->{chargen} = "race";
205	}
206
207	if ($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
214	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
217	last if $res =~ /[dD]/;
218
219	$pl->chargen_race_next;
220	Coro::Timer::sleep 0.05;
221	}
222
223	$pl->chargen_race_done;
224	$pl->{chargen} = "gender";
225	}
226
227	if ($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	}
243
244	$ns->state (cf::ST_PLAYING);
245
246	if ($pl->{chargen} eq "done") {
247	# XXX: Workaround for delayed client ext protocol handshake
248	$pl->esrv_new_player;
249
250	$pl->{chargen} = "done";
251	}
252
253	$ob->reply (undef, "Welcome to Deliantra!");
254
255	if (0 < Coro::AIO::aio_load "$cf::CONFDIR/motd", my $motd) {
256	$pl->ns->send_msg ("c/motd" => $motd, cf::NDI_CLEAR);
257	}
258	}
259
260	sub chargen {
261	my ($ns, $user, $hash) = @_;
262
263	# just to make sure nothing is left over
264	# normally, nothing is there.
265	nuke_playerdir $user;
266
267	my $pl = cf::player::new $user;
268	$pl->password (unpack "H*", $hash);
269	$pl->connect ($ns);
270
271	$pl->{chargen} = "init";
272
273	login $pl;
274	}
275
276	cf::client->attach (on_addme => sub {
277	my ($ns) = @_;
278
279	$ns->{addme}++ and return $ns->destroy;
280
281	$ns->async (sub {
282	$Coro::current->{desc} = "addme init";
283
284	my ($user, $pass);
285
286	$ns->send_packet ("addme_success");
287
288	for (;;) {
289	delete $ns->{login_guard};
290
291	send_log $ns,
292	"Please enter your username now. If you are a new user, "
293	. "make one up that describes your character best. "
294	. "Only letters and digits are allowed, though.",
295	cf::NDI_BLUE \| cf::NDI_REPLY
296	;
297
298	# read username
299	while () {
300	$user = query $ns, 0, "What is your name? (login names are case-sensitive)\n:";
301
302	if ($user =~ $VALID_LOGIN) {
303	last;
304	} else {
305	send_log $ns,
306	"Your username contains illegal characters "
307	. "(only a-z, A-Z and 0-9 are allowed), "
308	. "or is not between 3 and 20 characters in length.",
309	cf::NDI_RED \| cf::NDI_REPLY
310	;
311	}
312	Coro::Timer::sleep 0.4;
313	}
314
315	$Coro::current->{desc} = "addme($user)";
316
317	send_log $ns,
318	"Welcome $user, please enter your password now. "
319	. "New users should now choose a password. "
320	. "Anything your client lets you enter is fine.",
321	cf::NDI_BLUE \| cf::NDI_REPLY
322	;
323
324	# read password
325	while () {
326	$pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
327	last if $pass =~ /.../;
328	send_log $ns,
329	"Try to use at least three characters as your password please, "
330	. "that cannot be too much to ask for :)",
331	cf::NDI_RED \| cf::NDI_REPLY
332	;
333	Coro::Timer::sleep 0.4;
334	}
335
336	$ns->{login_guard} = login_guard $user
337	or do {
338	send_log $ns,
339	"That user is already logged in (or is logging in)."
340	. "Chose another, or wait till the other session has ended.",
341	cf::NDI_RED \| cf::NDI_REPLY
342	;
343	next;
344	};
345
346	# try to read the user file and check the password
347	if (my $pl = cf::player::find $user) {
348	aio_stat $pl->path and next;
349	my $mtime = (stat _)[9];
350	my $token = $pl->password;
351
352	if ($cf::CFG{ext_login_nocheck} or compare_password $pass, $token) {
353	# player exists and passwords match - we can proceed
354
355	# password matches, wonderful
356	my $pl = cf::player::find $user or next;
357	$pl->connect ($ns);
358	enter_map $pl;
359	login $pl;
360	return;
361	} elsif (can_cleanup $pl, $mtime) {
362	Coro::Timer::sleep 1;
363
364	send_log $ns,
365	"Player exists, but password does not match. If this is your account, "
366	. "please try again. If not, you can now decide to take over this account "
367	. "because it has not been in-use for some time.",
368	cf::NDI_RED \| cf::NDI_REPLY
369	;
370
371	(query $ns, cf::CS_QUERY_SINGLECHAR, "Delete existing account and create a new one (Y/N)?") =~ /^[yY]/
372	or next;
373
374	# check if the file hasn't changed
375	aio_stat cf::player::path $user and next;
376	$mtime == (stat _)[9] or next;
377
378	$pl->quit_character;
379
380	# fall through to creation
381	} else {
382	Coro::Timer::sleep 1;
383
384	send_log $ns,
385	"Wrong username or password. Please try again "
386	. "(check for Numlock and other semi-obvious error sources).",
387	cf::NDI_RED \| cf::NDI_REPLY
388	;
389	next;
390	}
391	} else {
392	# unable to load the playerfile:
393	# check whether the player dir exists, which means the file is corrupted or
394	# something very similar.
395	if (!aio_stat cf::player::playerdir $user) {
396	send_log $ns,
397	"Unable to retrieve this player. It might be a locked or broken account. "
398	. "If this is your account, ask a dungeon master for assistance. "
399	. "Otherwise choose a different login name.",
400	cf::NDI_RED \| cf::NDI_REPLY
401	;
402	next;
403	}
404	}
405
406	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
407
408	if ($pass2 ne $pass) {
409	send_log $ns,
410	"The passwords do not match, please try again.",
411	cf::NDI_RED \| cf::NDI_REPLY
412	;
413	Coro::Timer::sleep 0.5;
414	next;
415	}
416
417	last;
418	}
419
420	chargen $ns, $user, Deliantra::Util::hash_pw $pass;
421	});
422	});
423
424	cf::client->attach (
425	on_version => sub {
426	my ($ns, $arg) = @_;
427
428	# perl probably uses lrand48, which is not secure at all
429	# maybe require linux and use /dev/urandom.
430	$ns->{nonces} = [map { join "", map { chr rand 256 } 0..63 } 1..2];
431	$ns->ext_msg (nonces => @{ $ns->{nonces} });
432	},
433	);
434
435	cf::register_async_exticmd create_login => sub {
436	my ($ns, $reply, $user, $pass) = @_;
437
438	$ns->{addme}++ and return $ns->destroy;
439
440	$ns->async (sub {
441	my $fail = sub {
442	$reply->(0, $_[0]);
443	$ns->flush; # does not ensure that the data reaches the client - TODO
444	# need to do this in another thread, as this one gets canceled
445	Coro::async_pool {
446	Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
447	$ns->destroy if $ns->valid;
448	};
449	Coro::schedule; # do the destroy, should not return
450	};
451
452	$user =~ $VALID_LOGIN
453	or return $fail (
454	"Your username contains illegal characters (only a-z, A-Z and 0-9 are allowed), "
455	. "or is not between 3 and 20 characters in length."
456	);
457
458	$ns->{login_guard} = login_guard $user
459	or return $fail->("User name '$user' is in use - try another login name.");
460
461	cf::player::find $user
462	and return $fail->("User name '$user' is already registered - choose another login name.");
463
464	$reply->(1, "Account Created");
465
466	chargen $ns, $user, $pass;
467	});
468	};
469
470	cf::register_async_exticmd login => sub {
471	my ($ns, $reply, $user, $hash) = @_;
472
473	$ns->{addme}++ and return $ns->destroy;
474
475	$ns->async (sub {
476	$Coro::current->{desc} = "login($user)";
477
478	my $fail = sub {
479	$reply->(0, $_[0]);
480	$ns->flush; # does not ensure that the data reaches the client - TODO
481	# need to do this in another thread, as this one gets canceled
482	Coro::async_pool {
483	Coro::AnyEvent::sleep 0.1; # TODO, see above, extra hack
484	$ns->destroy if $ns->valid;
485	};
486	Coro::schedule; # do the destroy, should not return
487	};
488
489	$ns->{login_guard} = login_guard $user
490	or return $fail->("User '$user' is currently playing or logging in in another session. If that is your "
491	. "user name, make sure you are not running two clients. When in doubt, reboot.");
492
493	# try to read the user file and check the password
494	my $pl = cf::player::find $user
495	or return $fail->("User '$user' does not exist - wrong spelling?");
496
497	aio_stat $pl->path
498	and return $ns->destroy;
499
500	my $mtime = (stat _)[9];
501	my $token = $pl->password;
502
503	$token = $token =~ /^!/
504	? Deliantra::Util::hash_pw pack "H*", substr $token, 1
505	: pack "H*", $token;
506
507	$token = Deliantra::Util::auth_pw $token, $ns->{nonces}[0], $ns->{nonces}[1];
508
509	$token eq $hash
510	or $cf::CFG{ext_login_nocheck}
511	or return $fail->("User exists, but the password doesn't match - check your spelling, NumLock/CapsLock etc.");
512
513	# player exists and passwords match - we can proceed
514
515	$reply->(1, "Success");
516
517	$pl->connect ($ns);
518	enter_map $pl;
519	login $pl;
520	});
521	};
522
523	cf::register_command password => sub {
524	my ($pl, $arg) = @_;
525
526	unless ($pl->flag (cf::FLAG_WIZ)) {
527	$pl->message (
528	"The password can currently only changed by a DM.",
529	cf::NDI_UNIQUE \| cf::NDI_REPLY);
530	return;
531	}
532
533	$pl->message (#d#
534	"Passwords cannot currently be changed.",#d#
535	cf::NDI_UNIQUE \| cf::NDI_REPLY);#d#
536	return;#d#
537
538	my (@args) = split /\s+/, $arg;
539	my ($player, $new_pw) = @args;
540
541	if ($pl->flag (cf::FLAG_WIZ) && $player eq '') {
542	$pl->message (
543	"Usage: password <player> [<new password>]",
544	cf::NDI_UNIQUE \| cf::NDI_REPLY);
545	return;
546	}
547
548	if ($new_pw eq '') {
549	$new_pw =
550	join '',
551	map { ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[(cf::rndm 64)] }
552	1..9;
553	}
554
555	cf::async {
556	my $plc = cf::player::find $player;
557	if ($plc) {
558	$plc->password (encode_password $new_pw);
559	$pl->message (
560	"Ok, changed password of '$player' to '$new_pw'!",
561	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
562	} else {
563	$pl->message (
564	"Fail! Couldn't set password for '$player', "
565	. "he doesn't seem to exist!",
566	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
567	}
568	};
569	};
570
571	cf::register_command quit => sub {
572	my ($ob, $arg) = @_;
573
574	$ob->send_msg (undef,
575	"Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
576	. "If you are sure you want to do this, then use the quit_character command instead of quit.",
577	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
578	};
579
580	cf::register_command quit_character => sub {
581	my ($ob, $arg) = @_;
582
583	my $pl = $ob->contr;
584
585	$pl->ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to PERMANENTLY delete your character and all associated data (y/n)?", sub {
586	if ($_[0] !~ /^[yY]/) {
587	$ob->send_msg (undef, "Ok, not not quitting then.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
588	} else {
589	$ob->send_msg (undef, "Ok, quitting, hope to see you again.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
590	cf::async {
591	$pl->quit_character;
592	};
593	}
594	});
595	};
596
597	cf::object->attach (
598	type => cf::SAVEBED,
599	on_apply => sub {
600	my ($bed, $ob) = @_;
601
602	return cf::override 0 unless $ob->type == cf::PLAYER;
603
604	my $pl = $ob->contr;
605
606	# update respawn position
607	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
608
609	cf::async {
610	my $killer = cf::arch::get "killer_logout"; $pl->killer ($killer); $killer->destroy;
611	ext::highscore::check $ob;
612
613	$pl->save;
614
615	$ob->send_msg ($cf::SAY_CHANNEL => "In the future, you will wake up here when you die.", cf::NDI_DEF \| cf::NDI_REPLY);
616
617	my $ns = $pl->ns
618	or return;
619
620	$ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
621	if ($_[0] !~ /^[yY]/) {
622	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
623	$pl->deactivate;
624	$pl->ns->destroy;
625	}
626	});
627	};
628	},
629	);
630
631	cf::player->attach (
632	on_login => sub {
633	my ($pl) = @_;
634	my $name = $pl->ob->name;
635
636	$_->ob->message ("$name has entered the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
637	},
638	on_logout => sub {
639	my ($pl, $cleanly) = @_;
640	my $name = $pl->ob->name;
641
642	if ($cleanly) {
643	$_->ob->message ("$name left the game.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
644	} else {
645	$_->ob->message ("$name uncerimoniously disconnected.", cf::NDI_DK_ORANGE \| cf::NDI_UNIQUE) for cf::player::list;
646	$pl->{unclean_save} = $cf::RUNTIME
647	unless safe_spot $pl;
648	}
649	},
650	);
651