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
  19 #if TIME_WITH_SYS_TIME
  20 # include <sys/time.h>
  21 # include <time.h>
  22 #else
  23 # if HAVE_SYS_TIME_H
  24 #  include <sys/time.h>
  25 # else
  26 #  include <time.h>
  27 # endif
  28 #endif
  29
  30 #include <sys/types.h>
  31 #ifdef HAVE_SYS_SELECT_H
  32 #include <sys/select.h>
  33 #endif
  34 #include <stdarg.h>
  35 #include "citadel.h"
  36 #include "client_chat.h"
  37 #include "commands.h"
  38 #include "routines.h"
  39 #include "ipc.h"
  40 #include "citadel_decls.h"
  41 #include "tools.h"
  42 #include "rooms.h"
  43 #include "messages.h"
  44 #ifndef HAVE_SNPRINTF
  45 #include "snprintf.h"
  46 #endif
  47 #include "screen.h"
  48
  49 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  50
  51 extern struct CtdlServInfo serv_info;
  52 extern char temp[];
  53 void getline(char *, int);
  54
  55 char last_paged[SIZ] = "";
  56
  57 void chatmode(void)
  58 {
  59         char wbuf[SIZ];
  60         char buf[SIZ];
  61         char c_user[SIZ];
  62         char c_text[SIZ];
  63         char c_room[SIZ];
  64         char last_user[SIZ];
  65         int send_complete_line;
  66         int recv_complete_line;
  67         char ch;
  68         int a, pos;
  69         time_t last_transmit;
  70
  71         fd_set rfds;
  72         struct timeval tv;
  73         int retval;
  74
  75         serv_puts("CHAT");
  76         serv_gets(buf);
  77         if (buf[0] != '8') {
  78                 scr_printf("%s\n", &buf[4]);
  79                 return;
  80         }
  81         scr_printf("Entering chat mode (type /quit to exit, /help for other cmds)\n");
  82         set_keepalives(KA_NO);
  83         last_transmit = time(NULL);
  84
  85         strcpy(buf, "");
  86         strcpy(wbuf, "");
  87         color(BRIGHT_YELLOW);
  88         sln_printf_if("\n");
  89         sln_printf("> ");
  90         send_complete_line = 0;
  91         recv_complete_line = 0;
  92
  93         while (1) {
  94                 sln_flush();
  95                 FD_ZERO(&rfds);
  96                 FD_SET(0, &rfds);
  97                 FD_SET(getsockfd(), &rfds);
  98                 tv.tv_sec = S_KEEPALIVE;
  99                 tv.tv_usec = 0;
 100                 retval = select(getsockfd() + 1, &rfds, NULL, NULL, &tv);
 101
 102                 if (FD_ISSET(getsockfd(), &rfds)) {
 103                         ch = serv_getc();
 104                         if (ch == 10) {
 105                                 recv_complete_line = 1;
 106                                 goto RCL;       /* ugly, but we've gotta get out! */
 107                         } else {
 108                                 buf[strlen(buf) + 1] = 0;
 109                                 buf[strlen(buf)] = ch;
 110                         }
 111                         goto RCL;
 112                 }
 113                 if (FD_ISSET(0, &rfds)) {
 114                         ch = scr_getc();
 115                         if ((ch == 10) || (ch == 13)) {
 116                                 send_complete_line = 1;
 117                         } else if ((ch == 8) || (ch == 127)) {
 118                                 if (strlen(wbuf) > 0) {
 119                                         wbuf[strlen(wbuf) - 1] = 0;
 120                                         sln_printf("%c %c", 8, 8);
 121                                 }
 122                         } else {
 123                                 sln_putc(ch);
 124                                 wbuf[strlen(wbuf) + 1] = 0;
 125                                 wbuf[strlen(wbuf)] = ch;
 126                         }
 127                 }
 128                 /* if the user hit return, send the line */
 129               RCL:if (send_complete_line) {
 130                         serv_puts(wbuf);
 131                         last_transmit = time(NULL);
 132                         strcpy(wbuf, "");
 133                         send_complete_line = 0;
 134                 }
 135                 /* if it's time to word wrap, send a partial line */
 136                 if (strlen(wbuf) >= (77 - strlen(fullname))) {
 137                         pos = 0;
 138                         for (a = 0; a < strlen(wbuf); ++a) {
 139                                 if (wbuf[a] == 32)
 140                                         pos = a;
 141                         }
 142                         if (pos == 0) {
 143                                 serv_puts(wbuf);
 144                                 last_transmit = time(NULL);
 145                                 strcpy(wbuf, "");
 146                                 send_complete_line = 0;
 147                         } else {
 148                                 wbuf[pos] = 0;
 149                                 serv_puts(wbuf);
 150                                 last_transmit = time(NULL);
 151                                 strcpy(wbuf, &wbuf[pos + 1]);
 152                         }
 153                 }
 154                 if (recv_complete_line) {
 155                         sln_printf("\r%79s\r", "");
 156                         if (!strcmp(buf, "000")) {
 157                                 color(BRIGHT_WHITE);
 158                                 sln_printf("\rExiting chat mode\n");
 159                                 sln_flush();
 160                                 set_keepalives(KA_YES);
 161
 162                                 /* Some users complained about the client and server
 163                                  * losing protocol synchronization when exiting chat.
 164                                  * This little dialog forces everything to be
 165                                  * hunky-dory.
 166                                  */
 167                                 serv_puts("ECHO __ExitingChat__");
 168                                 do {
 169                                         serv_gets(buf);
 170                                 } while (strcmp(buf, "200 __ExitingChat__"));
 171
 172
 173                                 return;
 174                         }
 175                         if (num_parms(buf) >= 2) {
 176                                 extract(c_user, buf, 0);
 177                                 extract(c_text, buf, 1);
 178                                 if (num_parms(buf) > 2) {
 179                                         extract(c_room, buf, 2);
 180                                         scr_printf("Got room %s\n", c_room);
 181                                 }
 182                                 if (strcasecmp(c_text, "NOOP")) {
 183                                         if (!strcmp(c_user, fullname)) {
 184                                                 color(BRIGHT_YELLOW);
 185                                         } else if (!strcmp(c_user, ":")) {
 186                                                 color(BRIGHT_RED);
 187                                         } else {
 188                                                 color(BRIGHT_GREEN);
 189                                         }
 190                                         if (strcmp(c_user, last_user)) {
 191                                                 snprintf(buf, sizeof buf, "%s: %s", c_user, c_text);
 192                                         } else {
 193                                                 size_t i = MIN(sizeof buf - 1,
 194                                                      strlen(c_user) + 2);
 195
 196                                                 memset(buf, ' ', i);
 197                                                 safestrncpy(&buf[i], c_text,
 198                                                          sizeof buf - i);
 199                                         }
 200                                         while (strlen(buf) < 79)
 201                                                 strcat(buf, " ");
 202                                         if (strcmp(c_user, last_user)) {
 203                                                 sln_printf("\r%79s\n", "");
 204                                                 strcpy(last_user, c_user);
 205                                         }
 206                                         scr_printf("\r%s\n", buf);
 207                                         scr_flush();
 208                                 }
 209                         }
 210                         color(BRIGHT_YELLOW);
 211                         sln_printf("\r> %s", wbuf);
 212                         sln_flush();
 213                         recv_complete_line = 0;
 214                         strcpy(buf, "");
 215                 }
 216
 217                 /* If the user is sitting idle, send a half-keepalive to the
 218                  * server to prevent session timeout.
 219                  */
 220                 if ((time(NULL) - last_transmit) >= S_KEEPALIVE) {
 221                         serv_puts("NOOP");
 222                         last_transmit = time(NULL);
 223                 }
 224
 225         }
 226 }
 227
 228 /*
 229  * send an express message
 230  */
 231 void page_user()
 232 {
 233         char buf[SIZ], touser[SIZ], msg[SIZ];
 234         FILE *pagefp;
 235
 236         strcpy(touser, last_paged);
 237         strprompt("Page who", touser, 30);
 238
 239         /* old server -- use inline paging */
 240         if (serv_info.serv_paging_level == 0) {
 241                 newprompt("Message:  ", msg, 69);
 242                 snprintf(buf, sizeof buf, "SEXP %s|%s", touser, msg);
 243                 serv_puts(buf);
 244                 serv_gets(buf);
 245                 if (!strncmp(buf, "200", 3)) {
 246                         strcpy(last_paged, touser);
 247                 }
 248                 scr_printf("%s\n", &buf[4]);
 249                 return;
 250         }
 251         /* new server -- use extended paging */
 252         else if (serv_info.serv_paging_level >= 1) {
 253                 snprintf(buf, sizeof buf, "SEXP %s||", touser);
 254                 serv_puts(buf);
 255                 serv_gets(buf);
 256                 if (buf[0] != '2') {
 257                         scr_printf("%s\n", &buf[4]);
 258                         return;
 259                 }
 260                 if (client_make_message(temp, touser, 0, 0, 0, NULL) != 0) {
 261                         scr_printf("No message sent.\n");
 262                         return;
 263                 }
 264                 pagefp = fopen(temp, "r");
 265                 unlink(temp);
 266                 snprintf(buf, sizeof buf, "SEXP %s|-", touser);
 267                 serv_puts(buf);
 268                 serv_gets(buf);
 269                 if (buf[0] == '4') {
 270                         strcpy(last_paged, touser);
 271                         while (fgets(buf, sizeof buf, pagefp) != NULL) {
 272                                 buf[strlen(buf) - 1] = 0;
 273                                 serv_puts(buf);
 274                         }
 275                         fclose(pagefp);
 276                         serv_puts("000");
 277                         scr_printf("Message sent.\n");
 278                 } else {
 279                         scr_printf("%s\n", &buf[4]);
 280                 }
 281         }
 282 }
 283
 284
 285
 286
 287 void quiet_mode(void)
 288 {
 289         int qstate;
 290         char buf[SIZ];
 291
 292         serv_puts("DEXP 2");
 293         serv_gets(buf);
 294         if (buf[0] != '2') {
 295                 scr_printf("%s\n", &buf[4]);
 296                 return;
 297         }
 298         qstate = atoi(&buf[4]);
 299         if (qstate == 0)
 300                 qstate = 1;
 301         else
 302                 qstate = 0;
 303         sprintf(buf, "DEXP %d", qstate);
 304         serv_puts(buf);
 305         serv_gets(buf);
 306         if (buf[0] != '2') {
 307                 scr_printf("%s\n", &buf[4]);
 308                 return;
 309         }
 310         qstate = atoi(&buf[4]);
 311         if (qstate) {
 312                 scr_printf("Quiet mode enabled (no other users may page you)\n");
 313         } else {
 314                 scr_printf("Quiet mode disabled (other users may page you)\n");
 315         }
 316 }