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 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:	1.133
Committed:	Wed Nov 21 14:37:38 2012 UTC (11 years, 6 months ago) by root
Branch:	MAIN
CVS Tags:	rel-3_1
Changes since 1.132:	+1 -1 lines
Log Message:	* empty log message *
#	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 encode_password $pass;
143	}
144	}
145
146	# delete a player directory
147	sub nuke_playerdir {
148	my ($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	$ns->update_command_faces;
254
255	$ob->reply (undef, "Welcome to Deliantra!");
256
257	if (0 < Coro::AIO::aio_load "$cf::CONFDIR/motd", my $motd) {
258	$pl->ns->send_msg ("c/motd" => $motd, cf::NDI_CLEAR);
259	}
260	}
261
262	sub chargen {
263	my ($ns, $user, $hash) = @_;
264
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	$pl->password (unpack "H*", $hash);
271	$pl->connect ($ns);
272
273	$pl->{chargen} = "init";
274
275	login $pl;
276	}
277
278	cf::client->attach (on_addme => sub {
279	my ($ns) = @_;
280
281	$ns->{addme}++ and return $ns->destroy;
282
283	$ns->async (sub {
284	$Coro::current->{desc} = "addme init";
285
286	my ($user, $pass);
287
288	$ns->send_packet ("addme_success");
289
290	for (;;) {
291	delete $ns->{login_guard};
292
293	send_log $ns,
294	"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	cf::NDI_BLUE \| cf::NDI_REPLY
298	;
299
300	# read username
301	while () {
302	$user = query $ns, 0, "What is your name? (login names are case-sensitive)\n:";
303
304	if ($user =~ $VALID_LOGIN) {
305	last;
306	} else {
307	send_log $ns,
308	"Your username contains illegal characters "
309	. "(only a-z, A-Z and 0-9 are allowed), "
310	. "or is not between 3 and 20 characters in length.",
311	cf::NDI_RED \| cf::NDI_REPLY
312	;
313	}
314	Coro::Timer::sleep 0.4;
315	}
316
317	$Coro::current->{desc} = "addme($user)";
318
319	send_log $ns,
320	"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	cf::NDI_BLUE \| cf::NDI_REPLY
324	;
325
326	# read password
327	while () {
328	$pass = query $ns, cf::CS_QUERY_HIDEINPUT, "What is your password?\n:";
329	last if $pass =~ /.../;
330	send_log $ns,
331	"Try to use at least three characters as your password please, "
332	. "that cannot be too much to ask for :)",
333	cf::NDI_RED \| cf::NDI_REPLY
334	;
335	Coro::Timer::sleep 0.4;
336	}
337
338	$ns->{login_guard} = login_guard $user
339	or do {
340	send_log $ns,
341	"That user is already logged in (or is logging in)."
342	. "Chose another, or wait till the other session has ended.",
343	cf::NDI_RED \| cf::NDI_REPLY
344	;
345	next;
346	};
347
348	# try to read the user file and check the password
349	if (my $pl = cf::player::find $user) {
350	aio_stat $pl->path and next;
351	my $mtime = (stat _)[9];
352	my $token = $pl->password;
353
354	if ($cf::CFG{ext_login_nocheck} or compare_password $pass, $token) {
355	# player exists and passwords match - we can proceed
356
357	# password matches, wonderful
358	my $pl = cf::player::find $user or next;
359	$pl->connect ($ns);
360	enter_map $pl;
361	login $pl;
362	return;
363	} elsif (can_cleanup $pl, $mtime) {
364	Coro::Timer::sleep 1;
365
366	send_log $ns,
367	"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	. "because it has not been in-use for some time.",
370	cf::NDI_RED \| cf::NDI_REPLY
371	;
372
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	aio_stat cf::player::path $user and next;
378	$mtime == (stat _)[9] or next;
379
380	$pl->quit_character;
381
382	# fall through to creation
383	} else {
384	Coro::Timer::sleep 1;
385
386	send_log $ns,
387	"Wrong username or password. Please try again "
388	. "(check for Numlock and other semi-obvious error sources).",
389	cf::NDI_RED \| cf::NDI_REPLY
390	;
391	next;
392	}
393	} else {
394	# unable to load the playerfile:
395	# check whether the player dir exists, which means the file is corrupted or
396	# something very similar.
397	if (!aio_stat cf::player::playerdir $user) {
398	send_log $ns,
399	"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	cf::NDI_RED \| cf::NDI_REPLY
403	;
404	next;
405	}
406	}
407
408	my $pass2 = query $ns, cf::CS_QUERY_HIDEINPUT, "Please type your password again.";
409
410	if ($pass2 ne $pass) {
411	send_log $ns,
412	"The passwords do not match, please try again.",
413	cf::NDI_RED \| cf::NDI_REPLY
414	;
415	Coro::Timer::sleep 0.5;
416	next;
417	}
418
419	last;
420	}
421
422	chargen $ns, $user, Deliantra::Util::hash_pw $pass;
423	});
424	});
425
426	cf::client->attach (
427	on_version => sub {
428	my ($ns, $arg) = @_;
429
430	# perl probably uses lrand48, which is not secure at all
431	# maybe require linux and use /dev/urandom.
432	$ns->{nonces} = [map { join "", map { chr rand 256 } 0..63 } 1..2];
433	$ns->ext_msg (nonces => @{ $ns->{nonces} });
434	},
435	);
436
437	cf::register_async_exticmd create_login => sub {
438	my ($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	$ns->destroy if $ns->valid;
450	};
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	$ns->{login_guard} = login_guard $user
461	or return $fail->("User name '$user' is in use - try another login name.");
462
463	cf::player::find $user
464	and return $fail->("User name '$user' is already registered - choose another login name.");
465
466	$reply->(1, "Account Created");
467
468	chargen $ns, $user, $pass;
469	});
470	};
471
472	cf::register_async_exticmd login => sub {
473	my ($ns, $reply, $user, $hash) = @_;
474
475	$ns->{addme}++ and return $ns->destroy;
476
477	$ns->async (sub {
478	$Coro::current->{desc} = "login($user)";
479
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	$ns->destroy if $ns->valid;
487	};
488	Coro::schedule; # do the destroy, should not return
489	};
490
491	$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	# 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	$reply->(1, "Success");
518
519	$pl->connect ($ns);
520	enter_map $pl;
521	login $pl;
522	});
523	};
524
525	cf::register_command password => sub {
526	my ($pl, $arg) = @_;
527
528	unless ($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	$pl->message (#d#
536	"Passwords cannot currently be changed.",#d#
537	cf::NDI_UNIQUE \| cf::NDI_REPLY);#d#
538	return;#d#
539
540	my (@args) = split /\s+/, $arg;
541	my ($player, $new_pw) = @args;
542
543	if ($pl->flag (cf::FLAG_WIZ) && $player eq '') {
544	$pl->message (
545	"Usage: password <player> [<new password>]",
546	cf::NDI_UNIQUE \| cf::NDI_REPLY);
547	return;
548	}
549
550	if ($new_pw eq '') {
551	$new_pw =
552	join '',
553	map { ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[(cf::rndm 64)] }
554	1..9;
555	}
556
557	cf::async {
558	my $plc = cf::player::find $player;
559	if ($plc) {
560	$plc->password (encode_password $new_pw);
561	$pl->message (
562	"Ok, changed password of '$player' to '$new_pw'!",
563	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
564	} else {
565	$pl->message (
566	"Fail! Couldn't set password for '$player', "
567	. "he doesn't seem to exist!",
568	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
569	}
570	};
571	};
572
573	cf::register_command quit => sub {
574	my ($ob, $arg) = @_;
575
576	$ob->send_msg (undef,
577	"Quitting will delete your character PERMANENTLY: It will be gone forever and any progress will be lost. "
578	. "If you are sure you want to do this, then use the quit_character command instead of quit.",
579	cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
580	};
581
582	cf::register_command quit_character => sub {
583	my ($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	$ob->send_msg (undef, "Ok, not not quitting then.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
590	} else {
591	$ob->send_msg (undef, "Ok, quitting, hope to see you again.", cf::NDI_UNIQUE \| cf::NDI_RED \| cf::NDI_REPLY);
592	cf::async {
593	$pl->quit_character;
594	};
595	}
596	});
597	};
598
599	cf::object->attach (
600	type => cf::SAVEBED,
601	on_apply => sub {
602	my ($bed, $ob) = @_;
603
604	return cf::override 0 unless $ob->type == cf::PLAYER;
605
606	my $pl = $ob->contr;
607
608	# update respawn position
609	$pl->savebed ($bed->map->path, $bed->x, $bed->y);
610
611	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
617	$ob->send_msg ($cf::SAY_CHANNEL => "In the future, you will wake up here when you die.", cf::NDI_DEF \| cf::NDI_REPLY);
618
619	my $ns = $pl->ns
620	or return;
621
622	$ns->query (cf::CS_QUERY_SINGLECHAR, "Do you want to continue playing (y/n)?", sub {
623	if ($_[0] !~ /^[yY]/) {
624	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1);
625	$pl->deactivate;
626	$pl->ns->destroy;
627	}
628	});
629	};
630	},
631	);
632
633	cf::player->attach (
634	on_login => sub {
635	my ($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	$pl->{unclean_save} = $cf::RUNTIME
649	unless safe_spot $pl;
650	}
651	},
652	);
653