]> git.pond.sub.org Git - empserver/blobdiff - src/lib/player/player.c
Factor out code to read mailboxes, and make read more robust
[empserver] / src / lib / player / player.c
index b175279b846adc11a8bb1ccaa5381cdddd806aa2..3852c1161e3c74cc75a79f9c86081fa81b243e72 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *  Empire - A multi-player, client/server Internet based war game.
- *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *  Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
  *                           Ken Stevens, Steve McClure
  *
  *  This program is free software; you can redistribute it and/or modify
  *
  *  ---
  *
- *  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.
  *
  *  ---
  *
  *  player.c: Main command loop for a player
- * 
+ *
  *  Known contributors to this file:
  *     Steve McClure, 2000
- *     
+ *     Markus Armbruster, 2004-2008
+ *     Ron Koenderink, 2004-2007
  */
 
-#include "prototypes.h"
-#include <string.h>
-#include "gamesdef.h"
-#include "misc.h"
-#include "player.h"
-#include "proto.h"
-#include "var.h"
+#include <config.h>
+
+#include <errno.h>
+#include <stdio.h>
 #include "com.h"
-#include "nat.h"
-#include "sect.h"
-#include "deity.h"
-#include "file.h"
-#include "proto.h"
 #include "empio.h"
 #include "empthread.h"
+#include "file.h"
+#include "journal.h"
+#include "misc.h"
+#include "nat.h"
+#include "optlist.h"
+#include "player.h"
+#include "proto.h"
+#include "prototypes.h"
 #include "tel.h"
-#include "gen.h"
-#include "subs.h"
-#include "common.h"
 
-#if !defined(_WIN32)
-#include <unistd.h>
-#include <sys/time.h>
-#endif
-#include <stdio.h>
-#include <fcntl.h>
 
-struct player *player;
-extern int m_m_p_d;
+static int command(void);
+static int status(void);
+static int print_sink(char *, size_t, void *);
+
+struct player *player;
 
 void
 player_main(struct player *p)
 {
-       extern  s_char *authfil;
-       struct  natstr *natp;
-       int     hour[2];
-       int     secs;
-       s_char  buf[128];
-
-       p->state = PS_PLAYING;
-       player = p;
-       time(&player->lasttime);
-       (void) time(&player->curup);
-       showvers(CLIENTPROTO);
-       show_motd();
-       if (init_nats() < 0)
-               return;
-       natp = getnatp(player->cnum);
-        if (player->god &&
-           !match_user(authfil, player)) {
-               logerror("NON-AUTHed Login attempted by %s",
-                        praddr(player));
-               pr("You're not a deity!\n");
-               return;
-        }
-       if (!gamehours(player->curup, hour)) {
-               pr("Empire hours restriction in force\n");
-               if ((natp->nat_stat & STAT_GOD) == 0)
-                       return;
-       }
-       daychange(player->curup);
-       if ((player->minleft = getminleft(player->curup, hour, &m_m_p_d)) <= 0){
-               pr("Time exceeded today\n");
-               return;
-       }
-       if ((*natp->nat_hostaddr &&
-            *player->hostaddr &&
-            strcmp(natp->nat_hostaddr, player->hostaddr)) ||
-           (*natp->nat_userid &&
-            *player->userid &&
-            strcmp(natp->nat_userid, player->userid))) {
-           if (natp->nat_stat != VIS) {
-               pr("Last connection from: %s", ctime(&natp->nat_last_login));
-               pr("                  to: %s", natp->nat_last_login < 
-                  natp->nat_last_logout ? ctime(&natp->nat_last_logout):"?");
-               pr("                  by: %s@%s\n",
-                  *natp->nat_userid?natp->nat_userid : (s_char *)"nobody",
-                  *natp->nat_hostname?natp->nat_hostname:
-                  *natp->nat_hostaddr?natp->nat_hostaddr:(s_char *)"nowhere");
-           }
-       }
-       if (*player->userid)
-               strcpy(natp->nat_userid, player->userid);
-       else
-               strcpy(natp->nat_userid, "nobody");
+    struct natstr *natp;
+    char buf[128];
 
-       if (*player->hostname)
-               strcpy(natp->nat_hostname, player->hostname);
+    p->state = PS_PLAYING;
+    player = p;
+    time(&player->curup);
+    update_timeused_login(player->curup);
+    show_motd();
+    if (init_nats() < 0) {
+       pr("Server confused, try again later\n");
+       return;
+    }
+    natp = getnatp(player->cnum);
+    if (!may_play_now(natp, player->curup, 0))
+       return;
+    if (natp->nat_stat != STAT_VIS
+       && natp->nat_last_login
+       && (strcmp(natp->nat_hostaddr, player->hostaddr)
+           || strcmp(natp->nat_userid, player->userid))) {
+       pr("Last connection from: %s", ctime(&natp->nat_last_login));
+       pr("                  to: %s",
+          natp->nat_last_login <= natp->nat_last_logout
+          ? ctime(&natp->nat_last_logout) : "?");
+       pr("                  by: %s@%s\n",
+          natp->nat_userid,
+          *natp->nat_hostname ? natp->nat_hostname : natp->nat_hostaddr);
+    }
+    strcpy(natp->nat_userid, player->userid);
+    strcpy(natp->nat_hostname, player->hostname);
+    strcpy(natp->nat_hostaddr, player->hostaddr);
+    natp->nat_last_login = player->curup;
+    putnat(natp);
+    journal_login();
+    if (natp->nat_flags & NF_INFORM && natp->nat_tgms > 0) {
+       if (natp->nat_tgms == 1)
+           pr("You have a new telegram waiting ...\n");
        else
-               strcpy(natp->nat_hostname, "nowhere");
-
-       if (*player->hostaddr)
-               strcpy(natp->nat_hostaddr, player->hostaddr);
-       
-       time(&natp->nat_last_login);
-       natp->nat_connected = 1;
-       putnat(natp);
-       if (natp->nat_flags & NF_INFORM &&
-           natp->nat_tgms > 0) {
-               if (natp->nat_tgms == 1)
-                       pr("You have a new telegram waiting ...\n");
-               else
-                       pr("You have %s new telegrams waiting ...\n",
-                          numstr(buf, natp->nat_tgms));
-               natp->nat_tgms = 0;
-       }
+           pr("You have %s new telegrams waiting ...\n",
+              numstr(buf, natp->nat_tgms));
+       natp->nat_tgms = 0;
+    }
 
-       while (status()) {
-               if (command() == 0 && !player->aborted)
-                       break;
-               player->aborted = 0;
-       }
-       /* #*# I put the following line in to prevent server crash -KHS */
-       natp = getnatp(player->cnum);
-       /*
-        * randomly round up to the nearest minute,
-        * charging at least 15 seconds.
-        */
-       time(&natp->nat_last_logout);
-       secs = max(natp->nat_last_logout - player->lasttime, 15);
-        natp->nat_minused += secs / 60;
-       secs = secs % 60;
-       if (chance(secs / 60.0))
-               natp->nat_minused += 1;
-       natp->nat_connected = 0;
-       putnat(natp);
-       pr("Bye-bye\n");
+    while (status() && command()) {
+       player->aborted = player->eof;
+       empth_yield();
+    }
+    /* #*# I put the following line in to prevent server crash -KHS */
+    natp = getnatp(player->cnum);
+    time(&natp->nat_last_logout);
+    putnat(natp);
+    update_timeused(natp->nat_last_logout);
+    enforce_minimum_session_time();
+    pr("Bye-bye\n");
+    journal_logout();
 }
 
-int
+static int
 command(void)
 {
-       register unsigned int x;
-       s_char  *redir;
-       int     kill_player();
-       s_char  scanspace[1024];
+    char *redir;               /* UTF-8 */
+    char scanspace[1024];
+    time_t now;
 
-       if (getcommand(player->combuf) < 0)
-               return 0;
-       if (parse(player->combuf, player->argp, &player->condarg,
-           scanspace, &redir) < 0) {
-               pr("See \"info Syntax\"?\n");
-       } else {
-               /* XXX don't use alarm; use a scavenger thread */
-               /* DONT USE IT!!!! alarm and sleep may and dont work
-                  together -- Sasha */
-               /* alarm((unsigned int)60*60); 1 hour */
-               if (player->condarg != (s_char *)0)
-                       for(x=0;x<strlen(player->condarg);x++)
-                               if (isupper(*(player->condarg+x)))
-                                       *(player->condarg+x) = tolower(*(player->condarg+x));
-               if (dispatch(player->combuf, redir) < 0)
-                       pr("Try \"list of commands\" or \"info\"\n");
-       }
-       return 1;
+    if (getcommand(player->combuf) < 0)
+       return 0;
+
+    now = time(NULL);
+    update_timeused(now);
+    if (!may_play_now(getnatp(player->cnum), now, 1))
+       return 0;
+
+    if (parse(player->combuf, scanspace, player->argp, player->comtail,
+             &player->condarg, &redir) < 0) {
+       pr("See \"info Syntax\"?\n");
+    } else {
+       if (dispatch(player->combuf, redir) < 0)
+           pr("Try \"list of commands\" or \"info\"\n");
+    }
+    return 1;
 }
 
-int
+static int
 status(void)
 {
-       struct  natstr *natp;
-       int     minute;
-       struct  sctstr sect;
-       int     hour[2];
-       s_char  buf[128];
+    struct natstr *natp;
+    int old_nstat;
+    char buf[128];
 
-       if (player->state == PS_SHUTDOWN)
-               return 0;
-       natp = getnatp(player->cnum);
-       if (io_error(player->iop) || io_eof(player->iop)) {
-               putnat(natp);
-               return 0;
-       }
-       player->visitor = (natp->nat_stat & (STAT_NORM|STAT_GOD)) == 0;
-       if (player->dolcost != 0.0) {
-               if (player->dolcost > 100.0)
-                       pr("That just cost you $%.2f\n", player->dolcost);
-               else if (player->dolcost < -100.0)
-                       pr("You just made $%.2f\n", -player->dolcost);
-               if (natp->nat_money < player->dolcost && !player->broke) {
-                       player->broke = 1;
-                       player->nstat &= ~MONEY;
-                       pr("You are now broke; industries are on strike.\n");
-               } else if (player->broke && natp->nat_money - player->dolcost > 0) {
-                       player->broke = 0;
-                       player->nstat |= MONEY;
-                       pr("You are no longer broke!\n");
-               }
-               natp->nat_money -= roundavg(player->dolcost);
-               player->dolcost = 0.0;
-       } else { 
-               if (natp->nat_money < 0.0 && !player->broke) {
-                       player->broke = 1;
-                       player->nstat &= ~MONEY;
-                       pr("You are now broke; industries are on strike.\n");
-               }
-               if (player->broke && natp->nat_money > 0) {
-                       player->broke = 0;
-                       player->nstat |= MONEY;
-                       pr("You are no longer broke!\n");
-               }
+    if (player->eof || player->state == PS_SHUTDOWN)
+       return 0;
+    natp = getnatp(player->cnum);
+    if (player->dolcost > 100.0)
+       pr("That just cost you $%.2f\n", player->dolcost);
+    else if (player->dolcost < -100.0)
+       pr("You just made $%.2f\n", -player->dolcost);
+    if (player->dolcost != 0.0) {
+       /*
+        * Hackish work around for a race condition in the nightly
+        * build's regression tests: sometimes the update starts right
+        * after the force command yields, sometimes a bit later.  If
+        * it is late, we use one random number here, for the bye,
+        * and throwing off the random sequence.
+        */
+       natp->nat_money -= roundavg(player->dolcost);
+       player->dolcost = 0.0;
+    }
+
+    old_nstat = player->nstat;
+    player_set_nstat(player, natp);
+    if ((old_nstat & MONEY) && !(player->nstat & MONEY))
+       pr("You are now broke; industries are on strike.\n");
+    if (!(old_nstat & MONEY) && (player->nstat & MONEY))
+       pr("You are no longer broke!\n");
+
+    time(&player->curup);
+    update_timeused(player->curup);
+    if (!may_play_now(natp, player->curup, 0))
+       return 0;
+    if (player->btused) {
+       natp->nat_btu -= player->btused;
+       player->btused = 0;
+    }
+    if (natp->nat_tgms > 0) {
+       if (!(natp->nat_flags & NF_INFORM)) {
+           if (natp->nat_tgms == 1)
+               pr("You have a new telegram waiting ...\n");
+           else
+               pr("You have %s new telegrams waiting ...\n",
+                  numstr(buf, natp->nat_tgms));
+           natp->nat_tgms = 0;
        }
-       getsect(natp->nat_xcap, natp->nat_ycap, &sect);
-       if ((sect.sct_type == SCT_CAPIT || sect.sct_type == SCT_MOUNT ||
-           sect.sct_type == SCT_SANCT) &&
-           sect.sct_own == player->cnum)
-               player->nstat |= CAP;
+    }
+    if (natp->nat_ann > 0) {
+       if (natp->nat_ann == 1)
+           pr("You have a new announcement waiting ...\n");
        else
-               player->nstat &= ~CAP;
-       /* Ok, has the country owner reset his capital yet after it was sacked? */
-       if (natp->nat_flags & NF_SACKED)
-           player->nstat &= ~CAP; /* No capital yet */
-       player->ncomstat = player->nstat;
-       (void) time(&player->curup);
-       minute = (player->curup - player->lasttime) / 60;
-       if (minute > 0) {
-               player->minleft -= minute;
-               if (player->minleft <= 0) {
-                       /*
-                        * countdown timer "player->minleft" has expired.
-                        * either day change, or hours restriction
-                        */
-                       daychange(player->curup);
-                       if (!gamehours(player->curup, hour)) {
-                               pr("Empire hours restriction in force\n");
-                               if ((natp->nat_stat & STAT_GOD) == 0) {
-                                       putnat(natp);
-                                       return 0;
-                               }
-                       }
-                       player->minleft = getminleft(player->curup, hour, &m_m_p_d);
-               }
-               player->lasttime += minute * 60;
-               natp->nat_minused += minute;
-       }
-       if ((player->nstat & NORM) && natp->nat_minused > m_m_p_d) {
-               pr("Max minutes per day limit exceeded.\n");
-               player->ncomstat = VIS;
-       }
-       if (player->btused) {
-               natp->nat_btu -= player->btused;
-               player->btused = 0;
-       }
-       if (natp->nat_tgms > 0) {
-               if (!(natp->nat_flags & NF_INFORM)) {
-                       if (natp->nat_tgms == 1)
-                               pr("You have a new telegram waiting ...\n");
-                       else
-                               pr("You have %s new telegrams waiting ...\n",
-                                  numstr(buf, natp->nat_tgms));
-                       natp->nat_tgms = 0;
-               }
-       }
-       if (natp->nat_ann > 0) {
-               if (natp->nat_ann == 1)
-                       pr("You have a new announcement waiting ...\n");
-               else
-                       pr("You have %s new announcements waiting ...\n",
-                               numstr(buf, natp->nat_ann));
-               natp->nat_ann = 0;
-       }
-       if (!player->visitor && !player->god && (player->nstat & CAP) == 0)
-               pr("You lost your capital... better designate one\n");
-       putnat(natp);
-       if (gamedown() && !player->god) {
-               pr("gamedown\n");
-               return 0;
-       }
-       return 1;
+           pr("You have %s new announcements waiting ...\n",
+              numstr(buf, natp->nat_ann));
+       natp->nat_ann = 0;
+    }
+    if (natp->nat_stat == STAT_ACTIVE && (player->nstat & CAP) == 0)
+       pr("You lost your capital... better designate one (see info capital)\n");
+    putnat(natp);
+    return 1;
 }
 
 /*
- * actually a command; redirection and piping ignored.
  * XXX This whole mess should be redone; execute block should
  * start with "exec start", and should end with "exec end".
  * We'll wait until 1.2 I guess.
@@ -312,115 +214,96 @@ status(void)
 int
 execute(void)
 {
-       s_char  buf[512];
-       int     abort;
-       s_char  *p; 
-       s_char  *redir;
-       s_char  scanspace[1024];
+    char buf[1024];
+    int failed;
+    char *p;
+    char *redir;               /* UTF-8 */
+    char scanspace[1024];
 
-       abort = 0;
-       redir = 0;
-        
-        p = getstarg (player->argp[1], "File? ", buf);
+    failed = 0;
 
-        if (p == (s_char *) 0 || p == '\0')
-               return RET_SYN;  
+    if (player->comtail[1])
+       p = player->comtail[1];
+    else
+       p = getstring("File? ", buf);
+    if (p == NULL || *p == '\0')
+       return RET_SYN;
+    prexec(p);
 
-       prexec(player->argp[1]);
-       while (!abort && status()) {
-               if (recvclient(buf, sizeof(buf)) < 0)
-                       break;
-               if (parse(buf, player->argp, &player->condarg,
-                   scanspace, &redir) < 0) {
-                       abort = 1;
-                       continue;
-               }
-               if (redir == 0)
-                       pr("\nExecute : %s\n", buf);
-               if (dispatch(buf, redir) < 0)
-                       abort = 1;
-       }
-       if (abort) {
-           while (recvclient(buf, sizeof(buf)) >= 0)
-               ;
+    while (!failed && status()) {
+       player->nstat &= ~EXEC;
+       if (recvclient(buf, sizeof(buf)) < 0)
+           break;
+       if (parse(buf, scanspace, player->argp, player->comtail,
+                 &player->condarg, &redir) < 0) {
+           failed = 1;
+           continue;
        }
-       if (redir == 0)
-               pr("Execute : %s\n", abort ? "aborted" : "terminated");
-       return RET_OK;
+       pr("\nExecute : %s\n", buf);
+       if (redir) {
+           pr("Execute : redirection not supported\n");
+           failed = 1;
+       } else if (dispatch(buf, NULL) < 0)
+           failed = 1;
+    }
+    if (failed) {
+       while (recvclient(buf, sizeof(buf)) >= 0) ;
+    }
+
+    pr("Execute : %s\n", failed ? "aborted" : "terminated");
+    player->eof = 0;
+    return RET_OK;
 }
 
 int
 show_motd(void)
 {
-       extern  s_char *upfil;
-       int     upf;
-       struct  telstr tgm;
-       s_char  buf[MAXTELSIZE];
-
-#if !defined(_WIN32)
-       if ((upf = open(upfil, O_RDONLY, 0)) < 0)
-#else
-       if ((upf = open(upfil, O_RDONLY|O_BINARY, 0)) < 0)
-#endif
-               return RET_FAIL;
-       if (read(upf, (s_char *) &tgm, sizeof(tgm)) != sizeof(tgm)) {
-               logerror("bad header on login message (upfil)");
-               close(upf);
-               return RET_FAIL;
-       }
-       if (read(upf, buf, tgm.tel_length) != tgm.tel_length) {
-               logerror("bad length %d on login message", tgm.tel_length);
-               close(upf);
-               return RET_FAIL;
-       }
-       if (tgm.tel_length >= (long)sizeof(buf))
-               tgm.tel_length = sizeof(buf)-1;
-       buf[tgm.tel_length] = 0;
-       pr(buf);
-       (void) close(upf);
-       return RET_OK;
+    show_first_tel(motdfil);
+    return RET_OK;
 }
 
-int match_user(char *file, struct player *player)
+/*
+ * Print first telegram in file FNAME.
+ */
+int
+show_first_tel(char *fname)
 {
-        FILE   *fp;
-        int    match = 0;
-        s_char host[256];
-        s_char user[256];
+    FILE *fp;
+    struct telstr tgm;
 
-        if ((fp = fopen(file, "r")) == NULL) {
-                /*logerror("Cannot find file %s", file);*/
-               return 0;
+    if ((fp = fopen(fname, "rb")) == NULL) {
+       if (errno == ENOENT)
+           return 0;
+       else {
+           logerror("Could not open %s.\n", fname);
+           return -1;
        }
-       match = 0;
-       while (!feof(fp) && !match) {
-               if (fgets(host, sizeof(host)-1, fp) == NULL)
-                       break;
-              if (host[0] == '#') continue;
-               if (fgets(user, sizeof(user)-1, fp) == NULL)
-                       break;
-              host[strlen(host)-1] = '\0';
-              user[strlen(user)-1] = '\0';
-               if (strstr(player->userid, user) &&
-                   (strstr(player->hostaddr, host) ||
-                    strstr(player->hostname, host)))
-                       ++match;
-       }
-       fclose(fp);
-       return match;
+    }
+    if (tel_read_header(fp, fname, &tgm) < 0)
+       return -1;
+    if (tel_read_body(fp, fname, &tgm, print_sink, NULL) < 0)
+       return -1;
+    fclose(fp);
+    return 0;
+}
+
+static int
+print_sink(char *chunk, size_t sz, void *arg)
+{
+    uprnf(chunk);
+    return 0;
 }
 
 int
 quit(void)
 {
-       player->state = PS_SHUTDOWN;
-       return RET_OK;
+    player->state = PS_SHUTDOWN;
+    return RET_OK;
 }
 
-s_char *
-praddr(struct player *player)
+char *
+praddr(struct player *p)
 {
-       return prbuf("%s@%s", player->userid,
-                    *player->hostname?player->hostname:player->hostaddr);
+    return prbuf("%s@%s", p->userid,
+                *p->hostname ? p->hostname : p->hostaddr);
 }
-