/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* login.c: Allow the player to login
- *
+ *
* Known contributors to this file:
* Dave Pare, 1994
* Steve McClure, 2000
+ * Markus Armbruster, 2004-2011
+ * Ron Koenderink, 2005-2009
*/
-#ifdef Rel4
-#include <string.h>
-#endif /* Rel4 */
-#include "prototypes.h"
-#include "misc.h"
-#include "proto.h"
-#include "player.h"
+#include <config.h>
+
#include "com.h"
-#include "empthread.h"
#include "empio.h"
-#include "nsc.h"
+#include "empthread.h"
+#include "file.h"
+#include "journal.h"
+#include "match.h"
+#include "misc.h"
#include "nat.h"
+#include "nsc.h"
#include "optlist.h"
-#include "file.h"
-#include "subs.h"
-#include "common.h"
-#include "gen.h"
-
-#ifdef aix
-#include <unistd.h>
-#endif /* aix */
-#if !defined(_WIN32)
-#include <netinet/in.h>
-#endif
-#include <errno.h>
+#include "player.h"
+#include "proto.h"
+#include "prototypes.h"
-struct cmndstr login_coms[];
+static int client_cmd(void);
+static int coun_cmd(void);
+static int kill_cmd(void);
+static int options_cmd(void);
+static int pass_cmd(void);
+static int play_cmd(void);
+static int quit_cmd(void);
+static int sanc_cmd(void);
+static int user_cmd(void);
+static struct cmndstr login_coms[] = {
+ {"client client-id...", 0, client_cmd, 0, 0},
+ {"coun country", 0, coun_cmd, 0, 0},
+ {"kill", 0, kill_cmd, 0, 0},
+ {"options option=value...", 0, options_cmd, 0, 0},
+ {"pass password", 0, pass_cmd, 0, 0},
+ {"play [user [country [password]]]", 0, play_cmd, 0, 0},
+ {"quit", 0, quit_cmd, 0, 0},
+ {"sanc", 0, sanc_cmd, 0, 0},
+ {"user name", 0, user_cmd, 0, 0},
+ {NULL, 0, NULL, 0, 0}
+};
/*ARGSUSED*/
void
player_login(void *ud)
{
- s_char buf[128];
- s_char space[512];
- s_char *av[64];
- int ac;
- int cmd;
+ char buf[128];
+ char space[128];
+ int ac;
+ int cmd;
+ int res;
- player->proc = empth_self();
+ player->proc = empth_self();
- pr_id(player, C_INIT, "Empire server ready\n");
+ pr_id(player, C_INIT, "Empire server ready\n");
- while (!io_eof(player->iop) && !io_error(player->iop)) {
- io_output(player->iop, IO_WAIT);
- if (io_gets(player->iop, buf, sizeof(buf)) < 0) {
- io_input(player->iop, IO_WAIT);
- continue;
- }
- ac = parse(buf, av, 0, space, 0);
- cmd = comtch(av[0], login_coms, 0, 0);
- if (cmd < 0) {
- pr_id(player, C_BADCMD, "Command %s not found\n", av[0]);
- continue;
- }
- switch (login_coms[cmd].c_addr(player, ac, av)) {
- case RET_OK:
- break;
- case RET_FAIL:
- break;
- case RET_SYN:
- pr_id(player, C_BADCMD, "Usage %s\n", login_coms[cmd].c_form);
- break;
- default:
- break;
- }
- if (player->state >= PS_SHUTDOWN)
- break;
+ for (;;) {
+ io_output(player->iop, 1);
+ if (io_gets(player->iop, buf, sizeof(buf)) < 0) {
+ res = io_input(player->iop, 1);
+ if (res <= 0) {
+ if (res == 0 && !io_eof(player->iop))
+ pr_id(player, C_DATA, "idle connection terminated\n");
+ break;
+ }
+ continue;
+ }
+ journal_input(buf);
+ ac = parse(buf, space, player->argp, NULL, NULL, NULL);
+ if (ac <= 0) {
+ pr_id(player, C_BADCMD, "Can't parse command\n");
+ continue;
}
- player->state = PS_SHUTDOWN;
- if (!io_eof(player->iop)) {
- (void) pr_player(player, C_EXIT, "so long...\n");
- io_noblocking(player->iop, 0);
- while (io_output(player->iop, IO_WAIT) > 0)
- ;
+ cmd = comtch(player->argp[0], login_coms, 0);
+ if (cmd < 0) {
+ pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
+ continue;
}
- player_delete(player);
- empth_exit();
- /*NOTREACHED*/
+ switch (login_coms[cmd].c_addr()) {
+ case RET_OK:
+ break;
+ case RET_FAIL:
+ break;
+ case RET_SYN:
+ pr_id(player, C_BADCMD, "Usage %s\n", login_coms[cmd].c_form);
+ break;
+ default:
+ break;
+ }
+ }
+ player->state = PS_SHUTDOWN;
+ pr_id(player, C_EXIT, "so long...\n");
+ player_delete(player);
+ empth_exit();
+ /*NOTREACHED*/
}
-int
-client_cmd(struct player *player, int ac, char **av)
+static int
+client_cmd(void)
{
- int i;
+ int i, sz;
+ char *p, *end;
- if (ac < 1 || av[1] == '\0')
- return RET_SYN;
+ if (!player->argp[1])
+ return RET_SYN;
- for (i = 1; i < ac; ++i) {
- if (i > 1)
- (void) strncat(player->client, " ", sizeof(player->client)-1);
- (void) strncat(player->client, av[i], sizeof(player->client)-1);
- }
- player->client[sizeof(player->client)-1] = '\0';
- pr_id(player, C_CMDOK, "talking to %s\n", player->client);
- return RET_OK;
+ p = player->client;
+ end = player->client + sizeof(player->client) - 1;
+ for (i = 1; player->argp[i]; ++i) {
+ if (i > 1)
+ *p++ = ' ';
+ sz = strlen(player->argp[i]);
+ sz = MIN(sz, end - p);
+ memcpy(p, player->argp[i], sz);
+ p += sz;
+ }
+ *p = 0;
+ pr_id(player, C_CMDOK, "talking to %s\n", player->client);
+ return RET_OK;
}
-int
-user_cmd(struct player *player, int ac, char **av)
+static int
+user_cmd(void)
{
- if (ac < 1 || av[1] == '\0')
- return RET_SYN;
- (void) strncpy(player->userid, av[1], sizeof(player->userid)-1);
- player->userid[sizeof(player->userid)-1] = '\0';
- pr_id(player, C_CMDOK, "hello %s\n", player->userid);
- return RET_OK;
+ if (!player->argp[1])
+ return RET_SYN;
+ strncpy(player->userid, player->argp[1], sizeof(player->userid) - 1);
+ player->userid[sizeof(player->userid) - 1] = '\0';
+ pr_id(player, C_CMDOK, "hello %s\n", player->userid);
+ return RET_OK;
}
-int
-sanc_cmd(struct player *player, int ac, char **av)
+static int
+sanc_cmd(void)
{
- struct nstr_item ni;
- struct natstr nat;
- int first = 1;
+ struct nstr_item ni;
+ struct natstr nat;
+ int first = 1;
- if (!opt_BLITZ) {
- pr_id(player, C_BADCMD, "Command %s not found\n", av[0]);
- return RET_FAIL;
- }
+ if (!opt_BLITZ) {
+ pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
+ return RET_FAIL;
+ }
- snxtitem_all(&ni, EF_NATION);
- while (nxtitem(&ni, (s_char *)&nat)) {
- if (nat.nat_stat != (STAT_INUSE|STAT_SANCT))
- continue;
- if (first) {
- pr_id(player, C_DATA, "The following countries are still in sanctuary:\n");
- first = 0;
- }
- pr_id(player, C_DATA, "%s\n", nat.nat_cnam);
+ snxtitem_all(&ni, EF_NATION);
+ while (nxtitem(&ni, &nat)) {
+ if (nat.nat_stat != STAT_SANCT)
+ continue;
+ if (first) {
+ pr_id(player, C_DATA,
+ "The following countries are still in sanctuary:\n");
+ first = 0;
}
- if (first)
- pr_id(player, C_CMDOK, "There are no countries in sanctuary\n");
- else
- pr_id(player, C_CMDOK, "\n");
- return RET_OK;
+ pr_id(player, C_DATA, "%s\n", nat.nat_cnam);
+ }
+ if (first)
+ pr_id(player, C_CMDOK, "There are no countries in sanctuary\n");
+ else
+ pr_id(player, C_CMDOK, "\n");
+ return RET_OK;
}
-int
-coun_cmd(struct player *player, int ac, char **av)
+static int
+coun_cmd(void)
{
- natid cnum;
+ natid cnum;
- if (ac < 1 || av[1] == '\0')
- return RET_SYN;
- if (natbyname(av[1], &cnum) < 0) {
- pr_id(player, C_CMDERR, "country %s does not exist\n",av[1]);
- return 0;
- }
- player->cnum = cnum;
- player->validated = 0;
- pr_id(player, C_CMDOK, "country name %s\n", av[1]);
- return 0;
+ if (!player->argp[1])
+ return RET_SYN;
+ if (natbyname(player->argp[1], &cnum) < 0) {
+ pr_id(player, C_CMDERR, "country %s does not exist\n", player->argp[1]);
+ return RET_FAIL;
+ }
+ player->cnum = cnum;
+ player->authenticated = 0;
+ pr_id(player, C_CMDOK, "country name %s\n", player->argp[1]);
+ return 0;
}
-int
-pass_cmd(struct player *player, int ac, char **av)
+static int
+pass_cmd(void)
{
- if (ac < 1 || av[1] == '\0')
- return RET_SYN;
- if (player->cnum == 255) {
- pr_id(player, C_CMDERR, "need country first\n");
- return RET_FAIL;
- }
- if (!natpass(player->cnum, av[1])) {
- pr_id(player, C_CMDERR, "password bad, logging entry\n");
- logerror("%s tried country #%d with %s",
- praddr(player), player->cnum, av[1]);
- return RET_FAIL;
- }
- player->validated++;
- pr_id(player, C_CMDOK, "password ok\n");
- logerror("%s using country #%d", praddr(player), player->cnum);
- return RET_OK;
+ if (!player->argp[1])
+ return RET_SYN;
+ if (player->cnum == NATID_BAD) {
+ pr_id(player, C_CMDERR, "need country first\n");
+ return RET_FAIL;
+ }
+ if (!natpass(player->cnum, player->argp[1])) {
+ pr_id(player, C_CMDERR, "password bad, logging entry\n");
+ logerror("%s tried country #%d with %s",
+ praddr(player), player->cnum, player->argp[1]);
+ return RET_FAIL;
+ }
+ player->authenticated = 1;
+ pr_id(player, C_CMDOK, "password ok\n");
+ logerror("%s using country #%d", praddr(player), player->cnum);
+ return RET_OK;
}
-/*ARGSUSED*/
-int
-play_cmd(struct player *player, int ac, char **av)
+static int
+options_cmd(void)
{
- extern char *banfil;
- struct player *other;
- natid cnum;
- struct natstr *natp;
+ /*
+ * The option mechanism allows arbitrary string values, but so far
+ * all options are flags in struct player. Should be easy to
+ * generalize if needed.
+ */
+ struct logoptstr {
+ char *name;
+ int val;
+ };
+ static struct logoptstr login_opts[] = {
+ { "utf-8", PF_UTF8 },
+ { NULL, 0 }
+ };
+ char **ap;
+ char *p;
+ int opt;
+ unsigned i;
- if (ac == 4) {
- (void) strncpy(player->userid, av[1], sizeof(player->userid)-1);
- player->userid[sizeof(player->userid)-1] = '\0';
- player->validated = 0;
- if (natbyname(av[2], &cnum) < 0) {
- pr_id(player, C_CMDERR, "country %s does not exist\n", av[2]);
- return 0;
- }
- if (!natpass(cnum, av[3])) {
- pr_id(player, C_CMDERR, "password bad, logging entry\n");
- logerror("%s tried country #%d with %s",
- praddr(player), cnum, av[3]);
- return RET_FAIL;
- }
- player->cnum = cnum;
- player->validated++;
- }
- if (player->cnum == 255 || !player->validated) {
- pr_id(player, C_CMDERR, "need country and password\n");
- return RET_FAIL;
- }
- if ((other = player_find_other(player, (natid)player->cnum)) != 0) {
- natp = getnatp(player->cnum);
- if (natp->nat_stat != VIS) {
- pr_id(player, C_EXIT, "country in use by %s\n",
- praddr(other));
- } else {
- pr_id(player, C_EXIT, "country in use\n");
- }
- return RET_FAIL;
- }
- if (match_user(banfil, player)) {
- logerror("Attempted login by BANNED host %s",
- praddr(player));
- pr("Your login has been banned from this game\n");
- io_shutdown(player->iop, IO_READ);
- return RET_FAIL;
- }
- player_main(player);
- player->state = PS_SHUTDOWN;
+ if (!player->argp[1]) {
+ for (i = 0; login_opts[i].name; ++i)
+ pr_id(player, C_DATA, "%s=%d\n",
+ login_opts[i].name,
+ (player->flags & login_opts[i].val) != 0);
+ pr_id(player, C_CMDOK, "\n");
return RET_OK;
+ }
+
+ for (ap = player->argp+1; *ap; ++ap) {
+ p = strchr(*ap, '=');
+ if (p)
+ *p++ = 0;
+ opt = stmtch(*ap, login_opts,
+ offsetof(struct logoptstr, name),
+ sizeof(struct logoptstr));
+ if (opt < 0) {
+ pr_id(player, C_BADCMD, "Option %s not found\n", *ap);
+ return RET_FAIL;
+ }
+ if (!p || atoi(p))
+ player->flags |= login_opts[opt].val;
+ else
+ player->flags &= ~login_opts[opt].val;
+ }
+
+ pr_id(player, C_CMDOK, "Accepted\n");
+
+ return RET_OK;
}
-/*ARGSUSED*/
-int
-kill_cmd(struct player *player, int ac, char **av)
+static int
+may_play(void)
{
- struct player *other;
+ struct natstr *np;
- if (player->cnum == 255 || !player->validated) {
- pr_id(player, C_CMDERR, "need country and password\n");
- return RET_FAIL;
- }
- /* XXX find cnum other than us */
- if ((other = player_find_other(player, player->cnum)) == 0) {
- pr_id(player, C_EXIT, "country not in use\n");
- return RET_FAIL;
- }
- io_shutdown(other->iop, IO_READ|IO_WRITE);
- pr_id(player, C_EXIT, "closed socket of offending job\n");
- return RET_OK;
+ if (player->cnum == NATID_BAD || !player->authenticated) {
+ pr_id(player, C_CMDERR, "need country and password\n");
+ return 0;
+ }
+ /* TODO strstr() cheesy, compare IP against IP/BITS ... */
+ np = getnatp(player->cnum);
+ if (np->nat_stat == STAT_GOD && *privip
+ && !strstr(privip, player->hostaddr)) {
+ logerror("Deity login from untrusted host attempted by %s",
+ praddr(player));
+ logerror("To allow this, add %s to econfig key privip",
+ player->hostaddr);
+ pr_id(player, C_EXIT,
+ "Deity login not allowed from this IP!"
+ " See log for help on how to allow it.\n");
+ return 0;
+ }
+ return 1;
}
-/*ARGSUSED*/
-int
-list_cmd(struct player *player, int ac, char **av)
+static int
+play_cmd(void)
{
- struct player *lp;
- int first = 1;
+ struct player *other;
+ natid cnum;
+ struct natstr *natp;
+ char **ap;
+ char buf[128];
- if (player->cnum != 0 || !player->validated) {
- pr_id(player, C_CMDERR, "Permission denied\n");
- return 0;
+ ap = player->argp;
+ if (*++ap) {
+ strncpy(player->userid, *ap, sizeof(player->userid) - 1);
+ player->userid[sizeof(player->userid) - 1] = '\0';
+ player->authenticated = 0;
+ }
+ if (*++ap) {
+ if (natbyname(*ap, &cnum) < 0) {
+ pr_id(player, C_CMDERR, "country %s does not exist\n", *ap);
+ return RET_FAIL;
}
- for (lp = player_next(0); lp != 0; lp = player_next(lp)) {
- if (first) {
- pr_id(player, C_DATA, "user@host\tcountry\tpid\n");
- first = 0;
- }
- pr_id(player, C_DATA, "%s\t%d\n", praddr(lp), lp->cnum);
+ }
+ if (*++ap) {
+ if (!natpass(cnum, *ap)) {
+ pr_id(player, C_CMDERR, "password bad, logging entry\n");
+ logerror("%s tried country #%d with %s",
+ praddr(player), cnum, *ap);
+ return RET_FAIL;
}
- if (first == 0)
- pr_id(player, C_DATA, "\n");
- return 0;
+ player->cnum = cnum;
+ player->authenticated = 1;
+ }
+ if (!may_play())
+ return RET_FAIL;
+ other = getplayer(player->cnum);
+ if (other) {
+ natp = getnatp(player->cnum);
+ if (natp->nat_stat != STAT_VIS) {
+ pr_id(player, C_EXIT, "country in use by %s\n", praddr(other));
+ } else {
+ pr_id(player, C_EXIT, "country in use\n");
+ }
+ return RET_FAIL;
+ }
+ snprintf(buf, sizeof(buf), "Play#%d", player->cnum);
+ empth_set_name(empth_self(), buf);
+ logerror("%s logged in as country #%d", praddr(player), player->cnum);
+ pr_id(player, C_INIT, "%d\n", CLIENTPROTO);
+ player->state = PS_PLAYING;
+ player_main(player);
+ logerror("%s logged out, country #%d", praddr(player), player->cnum);
+ if (CANT_HAPPEN(!io_eof(player->iop)))
+ io_set_eof(player->iop);
+ return RET_OK;
}
-/*ARGSUSED*/
-int
-quit_cmd(struct player *player, int ac, char **av)
+static int
+kill_cmd(void)
{
- pr_id(player, C_EXIT, "so long\n");
- io_shutdown(player->iop, IO_READ);
- return RET_OK;
+ struct player *other;
+
+ if (!may_play())
+ return RET_FAIL;
+ other = getplayer(player->cnum);
+ if (!other) {
+ pr_id(player, C_EXIT, "country not in use\n");
+ return RET_FAIL;
+ }
+ logerror("%s killed country #%d", praddr(player), player->cnum);
+ io_shutdown(other->iop, IO_READ | IO_WRITE);
+ pr_id(player, C_EXIT, "closed socket of offending job\n");
+ return RET_OK;
}
-struct cmndstr login_coms[] = {
- { "list", 0, list_cmd, 0, 0 },
- { "client clientname [version info]", 0, client_cmd, 0, 0 },
- { "user username", 0, user_cmd, 0, 0 },
- { "sanc", 0, sanc_cmd, 0, 0 },
- { "coun countryname", 0, coun_cmd, 0, 0 },
- { "pass password", 0, pass_cmd, 0, 0 },
- { "play [user country pass]", 0, play_cmd, 0, 0 },
- { "quit ", 0, quit_cmd, 0, 0 },
- { "kill {self}", 0, kill_cmd, 0, 0 },
- { 0, 0, 0, 0, 0 }
-};
+static int
+quit_cmd(void)
+{
+ io_set_eof(player->iop);
+ return RET_OK;
+}
projects / empserver / blobdiff