2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * login.c: Allow the player to login
29 * Known contributors to this file:
32 * Markus Armbruster, 2004-2012
33 * Ron Koenderink, 2005-2009
40 #include "empthread.h"
50 #include "prototypes.h"
52 static int client_cmd(void);
53 static int coun_cmd(void);
54 static int kill_cmd(void);
55 static int options_cmd(void);
56 static int pass_cmd(void);
57 static int play_cmd(void);
58 static int quit_cmd(void);
59 static int sanc_cmd(void);
60 static int user_cmd(void);
62 static struct cmndstr login_coms[] = {
63 {"client client-id...", 0, client_cmd, 0, 0},
64 {"coun country", 0, coun_cmd, 0, 0},
65 {"kill", 0, kill_cmd, 0, 0},
66 {"options option=value...", 0, options_cmd, 0, 0},
67 {"pass password", 0, pass_cmd, 0, 0},
68 {"play [user [country [password]]]", 0, play_cmd, 0, 0},
69 {"quit", 0, quit_cmd, 0, 0},
70 {"sanc", 0, sanc_cmd, 0, 0},
71 {"user name", 0, user_cmd, 0, 0},
77 player_login(void *ud)
85 player->proc = empth_self();
87 pr_id(player, C_INIT, "Empire server ready\n");
90 if (io_outputwaiting(player->iop)) {
91 if (io_output(player->iop, (time_t)-1) <= 0)
95 if (io_gets(player->iop, buf, sizeof(buf)) < 0) {
96 res = io_input(player->iop, player->curup + minutes(max_idle));
98 if (res == 0 && !io_eof(player->iop))
99 pr_id(player, C_DATA, "idle connection terminated\n");
105 ac = parse(buf, space, player->argp, NULL, NULL, NULL);
107 pr_id(player, C_BADCMD, "Can't parse command\n");
110 cmd = comtch(player->argp[0], login_coms, 0);
112 pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
115 switch (login_coms[cmd].c_addr()) {
121 pr_id(player, C_BADCMD, "Usage %s\n", login_coms[cmd].c_form);
127 player->state = PS_SHUTDOWN;
128 pr_id(player, C_EXIT, "so long...\n");
129 player_delete(player);
140 if (!player->argp[1])
144 end = player->client + sizeof(player->client) - 1;
145 for (i = 1; player->argp[i]; ++i) {
148 sz = strlen(player->argp[i]);
149 sz = MIN(sz, end - p);
150 memcpy(p, player->argp[i], sz);
154 pr_id(player, C_CMDOK, "talking to %s\n", player->client);
161 if (!player->argp[1])
163 strncpy(player->userid, player->argp[1], sizeof(player->userid) - 1);
164 player->userid[sizeof(player->userid) - 1] = '\0';
165 pr_id(player, C_CMDOK, "hello %s\n", player->userid);
177 pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
181 snxtitem_all(&ni, EF_NATION);
182 while (nxtitem(&ni, &nat)) {
183 if (nat.nat_stat != STAT_SANCT)
186 pr_id(player, C_DATA,
187 "The following countries are still in sanctuary:\n");
190 pr_id(player, C_DATA, "%s\n", nat.nat_cnam);
193 pr_id(player, C_CMDOK, "There are no countries in sanctuary\n");
195 pr_id(player, C_CMDOK, "\n");
204 if (!player->argp[1])
206 if (natbyname(player->argp[1], &cnum) < 0) {
207 pr_id(player, C_CMDERR, "country %s does not exist\n", player->argp[1]);
211 player->authenticated = 0;
212 pr_id(player, C_CMDOK, "country name %s\n", player->argp[1]);
219 if (!player->argp[1])
221 if (player->cnum == NATID_BAD) {
222 pr_id(player, C_CMDERR, "need country first\n");
225 if (!natpass(player->cnum, player->argp[1])) {
226 pr_id(player, C_CMDERR, "password bad, logging entry\n");
227 logerror("%s tried country #%d with %s",
228 praddr(player), player->cnum, player->argp[1]);
231 player->authenticated = 1;
232 pr_id(player, C_CMDOK, "password ok\n");
233 logerror("%s using country #%d", praddr(player), player->cnum);
241 * The option mechanism allows arbitrary string values, but so far
242 * all options are flags in struct player. Should be easy to
243 * generalize if needed.
249 static struct logoptstr login_opts[] = {
250 { "utf-8", PF_UTF8 },
258 if (!player->argp[1]) {
259 for (i = 0; login_opts[i].name; ++i)
260 pr_id(player, C_DATA, "%s=%d\n",
262 (player->flags & login_opts[i].val) != 0);
263 pr_id(player, C_CMDOK, "\n");
267 for (ap = player->argp+1; *ap; ++ap) {
268 p = strchr(*ap, '=');
271 opt = stmtch(*ap, login_opts,
272 offsetof(struct logoptstr, name),
273 sizeof(struct logoptstr));
275 pr_id(player, C_BADCMD, "Option %s not found\n", *ap);
279 player->flags |= login_opts[opt].val;
281 player->flags &= ~login_opts[opt].val;
284 pr_id(player, C_CMDOK, "Accepted\n");
294 if (player->cnum == NATID_BAD || !player->authenticated) {
295 pr_id(player, C_CMDERR, "need country and password\n");
298 /* TODO strstr() cheesy, compare IP against IP/BITS ... */
299 np = getnatp(player->cnum);
300 if (np->nat_stat == STAT_GOD && *privip
301 && !strstr(privip, player->hostaddr)) {
302 logerror("Deity login from untrusted host attempted by %s",
304 logerror("To allow this, add %s to econfig key privip",
306 pr_id(player, C_EXIT,
307 "Deity login not allowed from this IP!"
308 " See log for help on how to allow it.\n");
317 struct player *other;
325 strncpy(player->userid, *ap, sizeof(player->userid) - 1);
326 player->userid[sizeof(player->userid) - 1] = '\0';
327 player->authenticated = 0;
330 if (natbyname(*ap, &cnum) < 0) {
331 pr_id(player, C_CMDERR, "country %s does not exist\n", *ap);
336 if (!natpass(cnum, *ap)) {
337 pr_id(player, C_CMDERR, "password bad, logging entry\n");
338 logerror("%s tried country #%d with %s",
339 praddr(player), cnum, *ap);
343 player->authenticated = 1;
347 other = getplayer(player->cnum);
349 natp = getnatp(player->cnum);
350 if (natp->nat_stat != STAT_VIS) {
351 pr_id(player, C_EXIT, "country in use by %s\n", praddr(other));
353 pr_id(player, C_EXIT, "country in use\n");
357 snprintf(buf, sizeof(buf), "Play#%d", player->cnum);
358 empth_set_name(empth_self(), buf);
359 logerror("%s logged in as country #%d", praddr(player), player->cnum);
360 pr_id(player, C_INIT, "%d\n", CLIENTPROTO);
361 player->state = PS_PLAYING;
363 logerror("%s logged out, country #%d", praddr(player), player->cnum);
364 if (!io_eof(player->iop) && !io_error(player->iop))
365 io_set_eof(player->iop);
372 struct player *other;
376 other = getplayer(player->cnum);
378 pr_id(player, C_EXIT, "country not in use\n");
381 logerror("%s killed country #%d", praddr(player), player->cnum);
382 io_shutdown(other->iop, IO_READ | IO_WRITE);
383 pr_id(player, C_EXIT, "closed socket of offending job\n");
390 io_set_eof(player->iop);