2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program 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 2 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * login.c: Allow the player to login
30 * Known contributors to this file:
33 * Markus Armbruster, 2004-2008
34 * Ron Koenderink, 2005-2009
41 #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");
89 while (player->state != PS_SHUTDOWN) {
90 io_output(player->iop, IO_WAIT);
91 if (io_gets(player->iop, buf, sizeof(buf)) < 0) {
92 res = io_input(player->iop, IO_WAIT);
94 if (res == 0 && !io_eof(player->iop))
95 pr_id(player, C_DATA, "idle connection terminated\n");
100 ac = parse(buf, space, player->argp, NULL, NULL, NULL);
101 cmd = comtch(player->argp[0], login_coms, 0);
103 pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
106 switch (login_coms[cmd].c_addr()) {
112 pr_id(player, C_BADCMD, "Usage %s\n", login_coms[cmd].c_form);
118 player->state = PS_SHUTDOWN;
119 if (!io_eof(player->iop)) {
120 pr_id(player, C_EXIT, "so long...\n");
121 io_noblocking(player->iop, 0);
122 while (io_output(player->iop, IO_WAIT) > 0) ;
124 player_delete(player);
135 if (!player->argp[1])
139 end = player->client + sizeof(player->client) - 1;
140 for (i = 1; player->argp[i]; ++i) {
143 sz = strlen(player->argp[i]);
144 sz = MIN(sz, end - p);
145 memcpy(p, player->argp[i], sz);
149 pr_id(player, C_CMDOK, "talking to %s\n", player->client);
156 if (!player->argp[1])
158 strncpy(player->userid, player->argp[1], sizeof(player->userid) - 1);
159 player->userid[sizeof(player->userid) - 1] = '\0';
160 pr_id(player, C_CMDOK, "hello %s\n", player->userid);
172 pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
176 snxtitem_all(&ni, EF_NATION);
177 while (nxtitem(&ni, &nat)) {
178 if (nat.nat_stat != STAT_SANCT)
181 pr_id(player, C_DATA,
182 "The following countries are still in sanctuary:\n");
185 pr_id(player, C_DATA, "%s\n", nat.nat_cnam);
188 pr_id(player, C_CMDOK, "There are no countries in sanctuary\n");
190 pr_id(player, C_CMDOK, "\n");
199 if (!player->argp[1])
201 if (natbyname(player->argp[1], &cnum) < 0) {
202 pr_id(player, C_CMDERR, "country %s does not exist\n", player->argp[1]);
206 player->authenticated = 0;
207 pr_id(player, C_CMDOK, "country name %s\n", player->argp[1]);
214 if (!player->argp[1])
216 if (player->cnum == NATID_BAD) {
217 pr_id(player, C_CMDERR, "need country first\n");
220 if (!natpass(player->cnum, player->argp[1])) {
221 pr_id(player, C_CMDERR, "password bad, logging entry\n");
222 logerror("%s tried country #%d with %s",
223 praddr(player), player->cnum, player->argp[1]);
226 player->authenticated = 1;
227 pr_id(player, C_CMDOK, "password ok\n");
228 logerror("%s using country #%d", praddr(player), player->cnum);
236 * The option mechanism allows arbitrary string values, but so far
237 * all options are flags in struct player. Should be easy to
238 * generalize if needed.
244 static struct logoptstr login_opts[] = {
245 { "utf-8", PF_UTF8 },
253 if (!player->argp[1]) {
254 for (i = 0; login_opts[i].name; ++i)
255 pr_id(player, C_DATA, "%s=%d\n",
257 (player->flags & login_opts[i].val) != 0);
258 pr_id(player, C_CMDOK, "\n");
262 for (ap = player->argp+1; *ap; ++ap) {
263 p = strchr(*ap, '=');
266 opt = stmtch(*ap, login_opts,
267 offsetof(struct logoptstr, name),
268 sizeof(struct logoptstr));
270 pr_id(player, C_BADCMD, "Option %s not found\n", *ap);
274 player->flags |= login_opts[opt].val;
276 player->flags &= ~login_opts[opt].val;
279 pr_id(player, C_CMDOK, "Accepted\n");
289 if (player->cnum == NATID_BAD || !player->authenticated) {
290 pr_id(player, C_CMDERR, "need country and password\n");
293 /* TODO strstr() cheesy, compare IP against IP/BITS ... */
294 np = getnatp(player->cnum);
295 if (np->nat_stat == STAT_GOD && *privip
296 && !strstr(privip, player->hostaddr)) {
297 logerror("Deity login from untrusted host attempted by %s",
299 logerror("To allow this, add %s to econfig key privip",
301 pr_id(player, C_EXIT,
302 "Deity login not allowed from this IP!"
303 " See log for help on how to allow it.\n");
312 struct player *other;
320 strncpy(player->userid, *ap, sizeof(player->userid) - 1);
321 player->userid[sizeof(player->userid) - 1] = '\0';
322 player->authenticated = 0;
325 if (natbyname(*ap, &cnum) < 0) {
326 pr_id(player, C_CMDERR, "country %s does not exist\n", *ap);
331 if (!natpass(cnum, *ap)) {
332 pr_id(player, C_CMDERR, "password bad, logging entry\n");
333 logerror("%s tried country #%d with %s",
334 praddr(player), cnum, *ap);
338 player->authenticated = 1;
342 other = getplayer((natid)player->cnum);
344 natp = getnatp(player->cnum);
345 if (natp->nat_stat != STAT_VIS) {
346 pr_id(player, C_EXIT, "country in use by %s\n", praddr(other));
348 pr_id(player, C_EXIT, "country in use\n");
352 snprintf(buf, sizeof(buf), "Play#%d", player->cnum);
353 empth_set_name(empth_self(), buf);
354 logerror("%s logged in as country #%d", praddr(player), player->cnum);
355 pr_id(player, C_INIT, "%d\n", CLIENTPROTO);
357 logerror("%s logged out, country #%d", praddr(player), player->cnum);
358 player->state = PS_SHUTDOWN;
365 struct player *other;
369 other = getplayer(player->cnum);
371 pr_id(player, C_EXIT, "country not in use\n");
374 logerror("%s killed country #%d", praddr(player), player->cnum);
375 io_shutdown(other->iop, IO_READ | IO_WRITE);
376 pr_id(player, C_EXIT, "closed socket of offending job\n");
383 pr_id(player, C_EXIT, "so long\n");
384 io_shutdown(player->iop, IO_READ);