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 <libcitadel.h>
  36 #include "citadel.h"
  37 #include "citadel_ipc.h"
  38 #include "client_chat.h"
  39 #include "commands.h"
  40 #include "routines.h"
  41 #include "citadel_decls.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         strcpy(last_user, "");
  88         color(BRIGHT_YELLOW);
  89         sln_printf_if("\n");
  90         sln_printf("> ");
  91         send_complete_line = 0;
  92         recv_complete_line = 0;
  93
  94         while (1) {
  95                 sln_flush();
  96                 FD_ZERO(&rfds);
  97                 FD_SET(0, &rfds);
  98                 FD_SET(CtdlIPC_getsockfd(ipc), &rfds);
  99                 tv.tv_sec = S_KEEPALIVE;
 100                 tv.tv_usec = 0;
 101                 retval = select(CtdlIPC_getsockfd(ipc) + 1, &rfds,
 102                         NULL, NULL, &tv);
 103
 104                 /* If there's data from the server... */
 105                 if (FD_ISSET(CtdlIPC_getsockfd(ipc), &rfds)) {
 106                         CtdlIPC_chat_recv(ipc, buf);
 107                         recv_complete_line = 1;
 108                         goto RCL;       /* ugly, but we've gotta get out! */
 109                 }
 110
 111                 /* If there's data from the keyboard... */
 112                 if (FD_ISSET(0, &rfds)) {
 113                         ch = scr_getc(SCR_BLOCK);
 114                         if ((ch == 10) || (ch == 13)) {
 115                                 send_complete_line = 1;
 116                         } else if ((ch == 8) || (ch == 127)) {
 117                                 if (!IsEmptyStr(wbuf)) {
 118                                         wbuf[strlen(wbuf) - 1] = 0;
 119                                         sln_printf("%c %c", 8, 8);
 120                                 }
 121                         } else {
 122                                 sln_putc(ch);
 123                                 wbuf[strlen(wbuf) + 1] = 0;
 124                                 wbuf[strlen(wbuf)] = ch;
 125                         }
 126                 }
 127
 128                 /* if the user hit return, send the line */
 129 RCL:            if (send_complete_line) {
 130                         CtdlIPC_chat_send(ipc, wbuf);
 131                         last_transmit = time(NULL);
 132                         strcpy(wbuf, "");
 133                         send_complete_line = 0;
 134                 }
 135
 136                 /* if it's time to word wrap, send a partial line */
 137                 if (strlen(wbuf) >= (77 - strlen(fullname))) {
 138                         pos = 0;
 139                         for (a = 0; !IsEmptyStr(&wbuf[a]); ++a) {
 140                                 if (wbuf[a] == 32)
 141                                         pos = a;
 142                         }
 143                         if (pos == 0) {
 144                                 CtdlIPC_chat_send(ipc, wbuf);
 145                                 last_transmit = time(NULL);
 146                                 strcpy(wbuf, "");
 147                                 send_complete_line = 0;
 148                         } else {
 149                                 wbuf[pos] = 0;
 150                                 CtdlIPC_chat_send(ipc, wbuf);
 151                                 last_transmit = time(NULL);
 152                                 strcpy(wbuf, &wbuf[pos + 1]);
 153                         }
 154                 }
 155
 156                 if (recv_complete_line) {
 157                         sln_printf("\r%79s\r", "");
 158                         if (!strcmp(buf, "000")) {
 159                                 color(BRIGHT_WHITE);
 160                                 sln_printf("\rExiting chat mode\n");
 161                                 sln_flush();
 162                                 set_keepalives(KA_YES);
 163
 164                                 /* Some users complained about the client and
 165                                  * server losing protocol synchronization when
 166                                  * exiting chat.  This little dialog forces
 167                                  * everything to be hunky-dory.
 168                                  */
 169                                 CtdlIPC_chat_send(ipc, "ECHO __ExitingChat__");
 170                                 do {
 171                                         CtdlIPC_chat_recv(ipc, buf);
 172                                 } while (strcmp(buf, "200 __ExitingChat__"));
 173                                 return;
 174                         }
 175                         if (num_parms(buf) >= 2) {
 176                                 extract_token(c_user, buf, 0, '|', sizeof c_user);
 177                                 extract_token(c_text, buf, 1, '|', sizeof c_text);
 178                                 if (num_parms(buf) > 2) {
 179                                         extract_token(c_room, buf, 2, '|', sizeof c_room);
 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                         CtdlIPC_chat_send(ipc, "NOOP");
 222                         last_transmit = time(NULL);
 223                 }
 224
 225         }
 226 }
 227
 228 /*
 229  * send an instant message
 230  */
 231 void page_user(CtdlIPC *ipc)
 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 (ipc->ServInfo.paging_level == 0) {
 241                 newprompt("Message: ", msg, 69);
 242                 snprintf(buf, sizeof buf, "SEXP %s|%s", touser, msg);
 243                 CtdlIPC_chat_send(ipc, buf);
 244                 CtdlIPC_chat_recv(ipc, 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 (ipc->ServInfo.paging_level >= 1) {
 253                 snprintf(buf, sizeof buf, "SEXP %s||", touser);
 254                 CtdlIPC_chat_send(ipc, buf);
 255                 CtdlIPC_chat_recv(ipc, buf);
 256                 if (buf[0] != '2') {
 257                         scr_printf("%s\n", &buf[4]);
 258                         return;
 259                 }
 260                 if (client_make_message(ipc, temp, touser, 0, 0, 0, NULL, 0) != 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                 CtdlIPC_chat_send(ipc, buf);
 268                 CtdlIPC_chat_recv(ipc, 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                                 CtdlIPC_chat_send(ipc, buf);
 274                         }
 275                         fclose(pagefp);
 276                         CtdlIPC_chat_send(ipc, "000");
 277                         scr_printf("Message sent.\n");
 278                 } else {
 279                         scr_printf("%s\n", &buf[4]);
 280                 }
 281         }
 282 }
 283
 284
 285 void quiet_mode(CtdlIPC *ipc)
 286 {
 287         static int quiet = 0;
 288         char cret[SIZ];
 289         int r;
 290
 291         r = CtdlIPCEnableInstantMessageReceipt(ipc, !quiet, cret);
 292         if (r / 100 == 2) {
 293                 quiet = !quiet;
 294                 scr_printf("Quiet mode %sabled (%sother users may page you)\n",
 295                                 (quiet) ? "en" : "dis",
 296                                 (quiet) ? "no " : "");
 297         } else {
 298                 scr_printf("Unable to change quiet mode: %s\n", cret);
 299         }
 300 }
 301
 302
 303 void stealth_mode(CtdlIPC *ipc)
 304 {
 305         static int stealth = 0;
 306         char cret[SIZ];
 307         int r;
 308
 309         r = CtdlIPCStealthMode(ipc, !stealth, cret);
 310         if (r / 100 == 2) {
 311                 stealth = !stealth;
 312                 scr_printf("Stealth mode %sabled (you are %s)\n",
 313                                 (stealth) ? "en" : "dis",
 314                                 (stealth) ? "invisible" : "listed as online");
 315         } else {
 316                 scr_printf("Unable to change stealth mode: %s\n", cret);
 317         }
 318 }