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 "citadel_ipc.h"
  37 #include "client_chat.h"
  38 #include "commands.h"
  39 #include "routines.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 char temp[];
  52 void ctdl_getline(char *, int);
  53
  54 char last_paged[SIZ] = "";
  55
  56 void chatmode(CtdlIPC *ipc)
  57 {
  58         char wbuf[SIZ];
  59         char buf[SIZ];
  60         char c_user[SIZ];
  61         char c_text[SIZ];
  62         char c_room[SIZ];
  63         char last_user[SIZ];
  64         int send_complete_line;
  65         int recv_complete_line;
  66         char ch;
  67         int a, pos;
  68         time_t last_transmit;
  69
  70         fd_set rfds;
  71         struct timeval tv;
  72         int retval;
  73
  74         CtdlIPC_chat_send(ipc, "CHAT");
  75         CtdlIPC_chat_recv(ipc, buf);
  76         if (buf[0] != '8') {
  77                 scr_printf("%s\n", &buf[4]);
  78                 return;
  79         }
  80         scr_printf("Entering chat mode "
  81                 "(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(CtdlIPC_getsockfd(ipc), &rfds);
  98                 tv.tv_sec = S_KEEPALIVE;
  99                 tv.tv_usec = 0;
 100                 retval = select(CtdlIPC_getsockfd(ipc) + 1, &rfds,
 101                         NULL, NULL, &tv);
 102
 103                 /* If there's data from the server... */
 104                 if (FD_ISSET(CtdlIPC_getsockfd(ipc), &rfds)) {
 105                         CtdlIPC_chat_recv(ipc, buf);
 106                         recv_complete_line = 1;
 107                         goto RCL;       /* ugly, but we've gotta get out! */
 108                 }
 109
 110                 /* If there's data from the keyboard... */
 111                 if (FD_ISSET(0, &rfds)) {
 112                         ch = scr_getc(SCR_BLOCK);
 113                         if ((ch == 10) || (ch == 13)) {
 114                                 send_complete_line = 1;
 115                         } else if ((ch == 8) || (ch == 127)) {
 116                                 if (strlen(wbuf) > 0) {
 117                                         wbuf[strlen(wbuf) - 1] = 0;
 118                                         sln_printf("%c %c", 8, 8);
 119                                 }
 120                         } else {
 121                                 sln_putc(ch);
 122                                 wbuf[strlen(wbuf) + 1] = 0;
 123                                 wbuf[strlen(wbuf)] = ch;
 124                         }
 125                 }
 126
 127                 /* if the user hit return, send the line */
 128 RCL:            if (send_complete_line) {
 129                         CtdlIPC_chat_send(ipc, wbuf);
 130                         last_transmit = time(NULL);
 131                         strcpy(wbuf, "");
 132                         send_complete_line = 0;
 133                 }
 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                                 CtdlIPC_chat_send(ipc, wbuf);
 144                                 last_transmit = time(NULL);
 145                                 strcpy(wbuf, "");
 146                                 send_complete_line = 0;
 147                         } else {
 148                                 wbuf[pos] = 0;
 149                                 CtdlIPC_chat_send(ipc, wbuf);
 150                                 last_transmit = time(NULL);
 151                                 strcpy(wbuf, &wbuf[pos + 1]);
 152                         }
 153                 }
 154
 155                 if (recv_complete_line) {
 156                         sln_printf("\r%79s\r", "");
 157                         if (!strcmp(buf, "000")) {
 158                                 color(BRIGHT_WHITE);
 159                                 sln_printf("\rExiting chat mode\n");
 160                                 sln_flush();
 161                                 set_keepalives(KA_YES);
 162
 163                                 /* Some users complained about the client and
 164                                  * server losing protocol synchronization when
 165                                  * exiting chat.  This little dialog forces
 166                                  * everything to be hunky-dory.
 167                                  */
 168                                 CtdlIPC_chat_send(ipc, "ECHO __ExitingChat__");
 169                                 do {
 170                                         CtdlIPC_chat_recv(ipc, buf);
 171                                 } while (strcmp(buf, "200 __ExitingChat__"));
 172                                 return;
 173                         }
 174                         if (num_parms(buf) >= 2) {
 175                                 extract_token(c_user, buf, 0, '|', sizeof c_user);
 176                                 extract_token(c_text, buf, 1, '|', sizeof c_text);
 177                                 if (num_parms(buf) > 2) {
 178                                         extract_token(c_room, buf, 2, '|', sizeof c_room);
 179                                         scr_printf("Got room %s\n", c_room);
 180                                 }
 181                                 if (strcasecmp(c_text, "NOOP")) {
 182                                         if (!strcmp(c_user, fullname)) {
 183                                                 color(BRIGHT_YELLOW);
 184                                         } else if (!strcmp(c_user, ":")) {
 185                                                 color(BRIGHT_RED);
 186                                         } else {
 187                                                 color(BRIGHT_GREEN);
 188                                         }
 189                                         if (strcmp(c_user, last_user)) {
 190                                                 snprintf(buf, sizeof buf, "%s: %s", c_user, c_text);
 191                                         } else {
 192                                                 size_t i = MIN(sizeof buf - 1,
 193                                                      strlen(c_user) + 2);
 194
 195                                                 memset(buf, ' ', i);
 196                                                 safestrncpy(&buf[i], c_text,
 197                                                          sizeof buf - i);
 198                                         }
 199                                         while (strlen(buf) < 79)
 200                                                 strcat(buf, " ");
 201                                         if (strcmp(c_user, last_user)) {
 202                                                 sln_printf("\r%79s\n", "");
 203                                                 strcpy(last_user, c_user);
 204                                         }
 205                                         scr_printf("\r%s\n", buf);
 206                                         scr_flush();
 207                                 }
 208                         }
 209                         color(BRIGHT_YELLOW);
 210                         sln_printf("\r> %s", wbuf);
 211                         sln_flush();
 212                         recv_complete_line = 0;
 213                         strcpy(buf, "");
 214                 }
 215
 216                 /* If the user is sitting idle, send a half-keepalive to the
 217                  * server to prevent session timeout.
 218                  */
 219                 if ((time(NULL) - last_transmit) >= S_KEEPALIVE) {
 220                         CtdlIPC_chat_send(ipc, "NOOP");
 221                         last_transmit = time(NULL);
 222                 }
 223
 224         }
 225 }
 226
 227 /*
 228  * send an instant message
 229  */
 230 void page_user(CtdlIPC *ipc)
 231 {
 232         char buf[SIZ], touser[SIZ], msg[SIZ];
 233         FILE *pagefp;
 234
 235         strcpy(touser, last_paged);
 236         strprompt("Page who", touser, 30);
 237
 238         /* old server -- use inline paging */
 239         if (ipc->ServInfo.paging_level == 0) {
 240                 newprompt("Message: ", msg, 69);
 241                 snprintf(buf, sizeof buf, "SEXP %s|%s", touser, msg);
 242                 CtdlIPC_chat_send(ipc, buf);
 243                 CtdlIPC_chat_recv(ipc, buf);
 244                 if (!strncmp(buf, "200", 3)) {
 245                         strcpy(last_paged, touser);
 246                 }
 247                 scr_printf("%s\n", &buf[4]);
 248                 return;
 249         }
 250         /* new server -- use extended paging */
 251         else if (ipc->ServInfo.paging_level >= 1) {
 252                 snprintf(buf, sizeof buf, "SEXP %s||", touser);
 253                 CtdlIPC_chat_send(ipc, buf);
 254                 CtdlIPC_chat_recv(ipc, buf);
 255                 if (buf[0] != '2') {
 256                         scr_printf("%s\n", &buf[4]);
 257                         return;
 258                 }
 259                 if (client_make_message(ipc, temp, touser, 0, 0, 0, NULL, 0) != 0) {
 260                         scr_printf("No message sent.\n");
 261                         return;
 262                 }
 263                 pagefp = fopen(temp, "r");
 264                 unlink(temp);
 265                 snprintf(buf, sizeof buf, "SEXP %s|-", touser);
 266                 CtdlIPC_chat_send(ipc, buf);
 267                 CtdlIPC_chat_recv(ipc, buf);
 268                 if (buf[0] == '4') {
 269                         strcpy(last_paged, touser);
 270                         while (fgets(buf, sizeof buf, pagefp) != NULL) {
 271                                 buf[strlen(buf) - 1] = 0;
 272                                 CtdlIPC_chat_send(ipc, buf);
 273                         }
 274                         fclose(pagefp);
 275                         CtdlIPC_chat_send(ipc, "000");
 276                         scr_printf("Message sent.\n");
 277                 } else {
 278                         scr_printf("%s\n", &buf[4]);
 279                 }
 280         }
 281 }
 282
 283
 284 void quiet_mode(CtdlIPC *ipc)
 285 {
 286         static int quiet = 0;
 287         char cret[SIZ];
 288         int r;
 289
 290         r = CtdlIPCEnableInstantMessageReceipt(ipc, !quiet, cret);
 291         if (r / 100 == 2) {
 292                 quiet = !quiet;
 293                 scr_printf("Quiet mode %sabled (%sother users may page you)\n",
 294                                 (quiet) ? "en" : "dis",
 295                                 (quiet) ? "no " : "");
 296         } else {
 297                 scr_printf("Unable to change quiet mode: %s\n", cret);
 298         }
 299 }
 300
 301
 302 void stealth_mode(CtdlIPC *ipc)
 303 {
 304         static int stealth = 0;
 305         char cret[SIZ];
 306         int r;
 307
 308         r = CtdlIPCStealthMode(ipc, !stealth, cret);
 309         if (r / 100 == 2) {
 310                 stealth = !stealth;
 311                 scr_printf("Stealth mode %sabled (you are %s)\n",
 312                                 (stealth) ? "en" : "dis",
 313                                 (stealth) ? "invisible" : "listed as online");
 314         } else {
 315                 scr_printf("Unable to change stealth mode: %s\n", cret);
 316         }
 317 }