citadel/client_chat.c

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