citadel/client_chat.c

   1 /*
   2  * $Id$
   3  *
   4  * front end for chat mode
   5  * (the "single process" version - no more fork() anymore)
   6  *
   7  */
   8
   9 #include "sysdep.h"
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <sys/time.h>
  19 #include <sys/types.h>
  20 #ifdef HAVE_SYS_SELECT_H
  21 #include <sys/select.h>
  22 #endif
  23 #include <stdarg.h>
  24 #include "citadel.h"
  25 #include "client_chat.h"
  26 #include "commands.h"
  27 #include "routines.h"
  28 #include "ipc.h"
  29 #include "citadel_decls.h"
  30 #include "tools.h"
  31 #include "rooms.h"
  32 #include "messages.h"
  33 #ifndef HAVE_SNPRINTF
  34 #include "snprintf.h"
  35 #endif
  36
  37 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  38
  39 extern struct CtdlServInfo serv_info;
  40 extern char temp[];
  41 void getline(char *, int);
  42
  43 void chatmode(void)
  44 {
  45         char wbuf[SIZ];
  46         char buf[SIZ];
  47         char c_user[SIZ];
  48         char c_text[SIZ];
  49         char c_room[SIZ];
  50         char last_user[SIZ];
  51         int send_complete_line;
  52         int recv_complete_line;
  53         char ch;
  54         int a, pos;
  55         time_t last_transmit;
  56
  57         fd_set rfds;
  58         struct timeval tv;
  59         int retval;
  60
  61         serv_puts("CHAT");
  62         serv_gets(buf);
  63         if (buf[0] != '8') {
  64                 printf("%s\n", &buf[4]);
  65                 return;
  66         }
  67         printf("Entering chat mode (type /quit to exit, /help for other cmds)\n");
  68         set_keepalives(KA_NO);
  69         last_transmit = time(NULL);
  70
  71         strcpy(buf, "");
  72         strcpy(wbuf, "");
  73         color(BRIGHT_YELLOW);
  74         printf("> ");
  75         send_complete_line = 0;
  76         recv_complete_line = 0;
  77
  78         while (1) {
  79                 fflush(stdout);
  80                 FD_ZERO(&rfds);
  81                 FD_SET(0, &rfds);
  82                 FD_SET(getsockfd(), &rfds);
  83                 tv.tv_sec = S_KEEPALIVE;
  84                 tv.tv_usec = 0;
  85                 retval = select(getsockfd() + 1, &rfds, NULL, NULL, &tv);
  86
  87                 if (FD_ISSET(getsockfd(), &rfds)) {
  88                         ch = serv_getc();
  89                         if (ch == 10) {
  90                                 recv_complete_line = 1;
  91                                 goto RCL;       /* ugly, but we've gotta get out! */
  92                         } else {
  93                                 buf[strlen(buf) + 1] = 0;
  94                                 buf[strlen(buf)] = ch;
  95                         }
  96                         goto RCL;
  97                 }
  98                 if (FD_ISSET(0, &rfds)) {
  99                         ch = inkey();
 100                         if ((ch == 10) || (ch == 13)) {
 101                                 send_complete_line = 1;
 102                         } else if ((ch == 8) || (ch == 127)) {
 103                                 if (strlen(wbuf) > 0) {
 104                                         wbuf[strlen(wbuf) - 1] = 0;
 105                                         printf("%c %c", 8, 8);
 106                                 }
 107                         } else {
 108                                 putc(ch, stdout);
 109                                 wbuf[strlen(wbuf) + 1] = 0;
 110                                 wbuf[strlen(wbuf)] = ch;
 111                         }
 112                 }
 113                 /* if the user hit return, send the line */
 114               RCL:if (send_complete_line) {
 115                         serv_puts(wbuf);
 116                         last_transmit = time(NULL);
 117                         strcpy(wbuf, "");
 118                         send_complete_line = 0;
 119                 }
 120                 /* if it's time to word wrap, send a partial line */
 121                 if (strlen(wbuf) >= (77 - strlen(fullname))) {
 122                         pos = 0;
 123                         for (a = 0; a < strlen(wbuf); ++a) {
 124                                 if (wbuf[a] == 32)
 125                                         pos = a;
 126                         }
 127                         if (pos == 0) {
 128                                 serv_puts(wbuf);
 129                                 last_transmit = time(NULL);
 130                                 strcpy(wbuf, "");
 131                                 send_complete_line = 0;
 132                         } else {
 133                                 wbuf[pos] = 0;
 134                                 serv_puts(wbuf);
 135                                 last_transmit = time(NULL);
 136                                 strcpy(wbuf, &wbuf[pos + 1]);
 137                         }
 138                 }
 139                 if (recv_complete_line) {
 140                         printf("\r%79s\r", "");
 141                         if (!strcmp(buf, "000")) {
 142                                 color(BRIGHT_WHITE);
 143                                 printf("Exiting chat mode\n");
 144
 145                                 fflush(stdout);
 146                                 set_keepalives(KA_YES);
 147
 148
 149                                 /* Some users complained about the client and server
 150                                  * losing protocol synchronization when exiting chat.
 151                                  * This little dialog forces everything to be
 152                                  * hunky-dory.
 153                                  */
 154                                 serv_puts("ECHO __ExitingChat__");
 155                                 do {
 156                                         serv_gets(buf);
 157                                 } while (strcmp(buf, "200 __ExitingChat__"));
 158
 159
 160                                 return;
 161                         }
 162                         if (num_parms(buf) >= 2) {
 163                                 extract(c_user, buf, 0);
 164                                 extract(c_text, buf, 1);
 165                                 if (num_parms(buf) > 2) {
 166                                         extract(c_room, buf, 2);
 167                                         printf("Got room %s\n", c_room);
 168                                 }
 169                                 if (strcasecmp(c_text, "NOOP")) {
 170                                         if (!strcmp(c_user, fullname)) {
 171                                                 color(BRIGHT_YELLOW);
 172                                         } else if (!strcmp(c_user, ":")) {
 173                                                 color(BRIGHT_RED);
 174                                         } else {
 175                                                 color(BRIGHT_GREEN);
 176                                         }
 177                                         if (strcmp(c_user, last_user)) {
 178                                                 snprintf(buf, sizeof buf, "%s: %s", c_user, c_text);
 179                                         } else {
 180                                                 size_t i = MIN(sizeof buf - 1,
 181                                                      strlen(c_user) + 2);
 182
 183                                                 memset(buf, ' ', i);
 184                                                 safestrncpy(&buf[i], c_text,
 185                                                          sizeof buf - i);
 186                                         }
 187                                         while (strlen(buf) < 79)
 188                                                 strcat(buf, " ");
 189                                         if (strcmp(c_user, last_user)) {
 190                                                 printf("\r%79s\n", "");
 191                                                 strcpy(last_user, c_user);
 192                                         }
 193                                         printf("\r%s\n", buf);
 194                                         fflush(stdout);
 195                                 }
 196                         }
 197                         color(BRIGHT_YELLOW);
 198                         printf("> %s", wbuf);
 199                         recv_complete_line = 0;
 200                         strcpy(buf, "");
 201                 }
 202
 203                 /* If the user is sitting idle, send a half-keepalive to the
 204                  * server to prevent session timeout.
 205                  */
 206                 if ((time(NULL) - last_transmit) >= S_KEEPALIVE) {
 207                         serv_puts("NOOP");
 208                         last_transmit = time(NULL);
 209                 }
 210
 211         }
 212 }
 213
 214 /*
 215  * send an express message
 216  */
 217 void page_user()
 218 {
 219         static char last_paged[32] = "";
 220         char buf[SIZ], touser[SIZ], msg[SIZ];
 221         FILE *pagefp;
 222
 223         strcpy(touser, last_paged);
 224         strprompt("Page who", touser, 30);
 225
 226         /* old server -- use inline paging */
 227         if (serv_info.serv_paging_level == 0) {
 228                 newprompt("Message:  ", msg, 69);
 229                 snprintf(buf, sizeof buf, "SEXP %s|%s", touser, msg);
 230                 serv_puts(buf);
 231                 serv_gets(buf);
 232                 if (!strncmp(buf, "200", 3)) {
 233                         strcpy(last_paged, touser);
 234                 }
 235                 printf("%s\n", &buf[4]);
 236                 return;
 237         }
 238         /* new server -- use extended paging */
 239         else if (serv_info.serv_paging_level >= 1) {
 240                 snprintf(buf, sizeof buf, "SEXP %s||", touser);
 241                 serv_puts(buf);
 242                 serv_gets(buf);
 243                 if (buf[0] != '2') {
 244                         printf("%s\n", &buf[4]);
 245                         return;
 246                 }
 247                 if (make_message(temp, touser, 0, 0, 0) != 0) {
 248                         printf("No message sent.\n");
 249                         return;
 250                 }
 251                 pagefp = fopen(temp, "r");
 252                 unlink(temp);
 253                 snprintf(buf, sizeof buf, "SEXP %s|-", touser);
 254                 serv_puts(buf);
 255                 serv_gets(buf);
 256                 if (buf[0] == '4') {
 257                         strcpy(last_paged, touser);
 258                         while (fgets(buf, sizeof buf, pagefp) != NULL) {
 259                                 buf[strlen(buf) - 1] = 0;
 260                                 serv_puts(buf);
 261                         }
 262                         fclose(pagefp);
 263                         serv_puts("000");
 264                         printf("Message sent.\n");
 265                 } else {
 266                         printf("%s\n", &buf[4]);
 267                 }
 268         }
 269 }
 270
 271
 272
 273
 274 void quiet_mode(void)
 275 {
 276         int qstate;
 277         char buf[SIZ];
 278
 279         serv_puts("DEXP 2");
 280         serv_gets(buf);
 281         if (buf[0] != '2') {
 282                 printf("%s\n", &buf[4]);
 283                 return;
 284         }
 285         qstate = atoi(&buf[4]);
 286         if (qstate == 0)
 287                 qstate = 1;
 288         else
 289                 qstate = 0;
 290         sprintf(buf, "DEXP %d", qstate);
 291         serv_puts(buf);
 292         serv_gets(buf);
 293         if (buf[0] != '2') {
 294                 printf("%s\n", &buf[4]);
 295                 return;
 296         }
 297         qstate = atoi(&buf[4]);
 298         if (qstate) {
 299                 printf("Quiet mode enabled (no other users may page you)\n");
 300         } else {
 301                 printf("Quiet mode disabled (other users may page you)\n");
 302         }
 303 }