citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel/UX message support routines
   5  * see copyright.txt for copyright information
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <sys/types.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <sys/wait.h>
  20 #include <sys/stat.h>
  21 #include <sys/time.h>
  22 #include <stdarg.h>
  23 #include "citadel.h"
  24 #include "messages.h"
  25 #include "commands.h"
  26 #include "rooms.h"
  27 #include "tools.h"
  28 #ifndef HAVE_SNPRINTF
  29 #include "snprintf.h"
  30 #endif
  31
  32 #define MAXWORDBUF 256
  33 #define MAXMSGS 512
  34
  35 struct cittext {
  36         struct cittext *next;
  37         char text[MAXWORDBUF];
  38 };
  39
  40 void sttybbs(int cmd);
  41 int fmout(int width, FILE * fp, char pagin, int height, int starting_lp,
  42           char subst);
  43 int haschar(char *st, int ch);
  44 int checkpagin(int lp, int pagin, int height);
  45 void getline(char *string, int lim);
  46 void formout(char *name);
  47 int yesno(void);
  48 void newprompt(char *prompt, char *str, int len);
  49 int file_checksum(char *filename);
  50 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
  51
  52 char reply_to[512];
  53 long msg_arr[MAXMSGS];
  54 int num_msgs;
  55 extern char room_name[];
  56 extern unsigned room_flags;
  57 extern long highest_msg_read;
  58 extern struct CtdlServInfo serv_info;
  59 extern char temp[];
  60 extern char temp2[];
  61 extern int screenwidth;
  62 extern int screenheight;
  63 extern long maxmsgnum;
  64 extern char is_mail;
  65 extern char is_aide;
  66 extern char is_room_aide;
  67 extern char fullname[];
  68 extern char axlevel;
  69 extern unsigned userflags;
  70 extern char sigcaught;
  71 extern char editor_path[];
  72 extern char printcmd[];
  73 extern int rc_allow_attachments;
  74 extern int rc_display_message_numbers;
  75 extern int rc_force_mail_prompts;
  76
  77 extern int editor_pid;
  78
  79 void ka_sigcatch(int signum)
  80 {
  81         char buf[256];
  82         alarm(S_KEEPALIVE);
  83         signal(SIGALRM, ka_sigcatch);
  84         serv_puts("NOOP");
  85         serv_gets(buf);
  86 }
  87
  88
  89 /*
  90  * server keep-alive version of wait() (needed for external editor)
  91  */
  92 pid_t ka_wait(int *kstatus)
  93 {
  94         pid_t p;
  95
  96         alarm(S_KEEPALIVE);
  97         signal(SIGALRM, ka_sigcatch);
  98         do {
  99                 errno = 0;
 100                 p = wait(kstatus);
 101         } while (errno == EINTR);
 102         signal(SIGALRM, SIG_IGN);
 103         alarm(0);
 104         return (p);
 105 }
 106
 107
 108 /*
 109  * version of system() that uses ka_wait()
 110  */
 111 int ka_system(char *shc)
 112 {
 113         pid_t childpid;
 114         pid_t waitpid;
 115         int retcode;
 116
 117         childpid = fork();
 118         if (childpid < 0) {
 119                 color(BRIGHT_RED);
 120                 perror("Cannot fork");
 121                 color(DIM_WHITE);
 122                 return ((pid_t) childpid);
 123         }
 124
 125         if (childpid == 0) {
 126                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 127                 exit(127);
 128         }
 129
 130         if (childpid > 0) {
 131                 do {
 132                         waitpid = ka_wait(&retcode);
 133                 } while (waitpid != childpid);
 134                 return (retcode);
 135         }
 136
 137         return (-1);
 138 }
 139
 140
 141
 142 /*
 143  * add a newline to the buffer...
 144  */
 145 void add_newline(struct cittext *textlist)
 146 {
 147         struct cittext *ptr;
 148
 149         ptr = textlist;
 150         while (ptr->next != NULL)
 151                 ptr = ptr->next;
 152
 153         while (ptr->text[strlen(ptr->text) - 1] == 32)
 154                 ptr->text[strlen(ptr->text) - 1] = 0;
 155         /* strcat(ptr->text,"\n"); */
 156
 157         ptr->next = (struct cittext *)
 158             malloc(sizeof(struct cittext));
 159         ptr = ptr->next;
 160         ptr->next = NULL;
 161         strcpy(ptr->text, "");
 162 }
 163
 164
 165 /*
 166  * add a word to the buffer...
 167  */
 168 void add_word(struct cittext *textlist, char *wordbuf)
 169 {
 170         struct cittext *ptr;
 171
 172         ptr = textlist;
 173         while (ptr->next != NULL)
 174                 ptr = ptr->next;
 175
 176         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 177                 ptr->next = (struct cittext *)
 178                     malloc(sizeof(struct cittext));
 179                 ptr = ptr->next;
 180                 ptr->next = NULL;
 181                 strcpy(ptr->text, "");
 182         }
 183
 184         strcat(ptr->text, wordbuf);
 185         strcat(ptr->text, " ");
 186 }
 187
 188
 189 /*
 190  * begin editing of an opened file pointed to by fp
 191  */
 192 void citedit(FILE * fp)
 193 {
 194         int a, prev, finished, b, last_space;
 195         int appending = 0;
 196         struct cittext *textlist = NULL;
 197         struct cittext *ptr;
 198         char wordbuf[MAXWORDBUF];
 199
 200         /* first, load the text into the buffer */
 201         fseek(fp, 0L, 0);
 202         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 203         textlist->next = NULL;
 204         strcpy(textlist->text, "");
 205
 206         strcpy(wordbuf, "");
 207         prev = (-1);
 208         while (a = getc(fp), a >= 0) {
 209                 appending = 1;
 210                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 211                         add_word(textlist, wordbuf);
 212                         strcpy(wordbuf, "");
 213                         if ((prev == 13) || (prev == 10)) {
 214                                 add_word(textlist, "\n");
 215                                 add_newline(textlist);
 216                                 add_word(textlist, "");
 217                         }
 218                 } else {
 219                         wordbuf[strlen(wordbuf) + 1] = 0;
 220                         wordbuf[strlen(wordbuf)] = a;
 221                 }
 222                 if (strlen(wordbuf) + 3 > screenwidth) {
 223                         add_word(textlist, wordbuf);
 224                         strcpy(wordbuf, "");
 225                 }
 226                 prev = a;
 227         }
 228
 229         /* get text */
 230         finished = 0;
 231         prev = (appending ? 13 : (-1));
 232         strcpy(wordbuf, "");
 233         async_ka_start();
 234         do {
 235                 a = inkey();
 236                 if (a == 10)
 237                         a = 13;
 238                 if (a == 9)
 239                         a = 32;
 240                 if (a == 127)
 241                         a = 8;
 242
 243         /******* new ***********/
 244                 if ((a > 32) && (a < 127) && (prev == 13)) {
 245                         add_word(textlist, "\n");
 246                         printf(" ");
 247                 }
 248         /***********************/
 249
 250                 if ((a == 32) && (prev == 13)) {
 251                         add_word(textlist, "\n");
 252                         add_newline(textlist);
 253                 }
 254
 255                 if (a == 8) {
 256                         if (strlen(wordbuf) > 0) {
 257                                 wordbuf[strlen(wordbuf) - 1] = 0;
 258                                 putc(8, stdout);
 259                                 putc(32, stdout);
 260                                 putc(8, stdout);
 261                         }
 262                 } else if (a == 13) {
 263                         printf("\n");
 264                         if (strlen(wordbuf) == 0)
 265                                 finished = 1;
 266                         else {
 267                                 for (b = 0; b < strlen(wordbuf); ++b)
 268                                         if (wordbuf[b] == 32) {
 269                                                 wordbuf[b] = 0;
 270                                                 add_word(textlist,
 271                                                          wordbuf);
 272                                                 strcpy(wordbuf,
 273                                                        &wordbuf[b + 1]);
 274                                                 b = 0;
 275                                         }
 276                                 add_word(textlist, wordbuf);
 277                                 strcpy(wordbuf, "");
 278                         }
 279                 } else {
 280                         putc(a, stdout);
 281                         wordbuf[strlen(wordbuf) + 1] = 0;
 282                         wordbuf[strlen(wordbuf)] = a;
 283                 }
 284                 if ((strlen(wordbuf) + 3) > screenwidth) {
 285                         last_space = (-1);
 286                         for (b = 0; b < strlen(wordbuf); ++b)
 287                                 if (wordbuf[b] == 32)
 288                                         last_space = b;
 289                         if (last_space >= 0) {
 290                                 for (b = 0; b < strlen(wordbuf); ++b)
 291                                         if (wordbuf[b] == 32) {
 292                                                 wordbuf[b] = 0;
 293                                                 add_word(textlist,
 294                                                          wordbuf);
 295                                                 strcpy(wordbuf,
 296                                                        &wordbuf[b + 1]);
 297                                                 b = 0;
 298                                         }
 299                                 for (b = 0; b < strlen(wordbuf); ++b) {
 300                                         putc(8, stdout);
 301                                         putc(32, stdout);
 302                                         putc(8, stdout);
 303                                 }
 304                                 printf("\n%s", wordbuf);
 305                         } else {
 306                                 add_word(textlist, wordbuf);
 307                                 strcpy(wordbuf, "");
 308                                 printf("\n");
 309                         }
 310                 }
 311                 prev = a;
 312         } while (finished == 0);
 313         async_ka_end();
 314
 315         /* write the buffer back to disk */
 316         fseek(fp, 0L, 0);
 317         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 318                 fprintf(fp, "%s", ptr->text);
 319         }
 320         putc(10, fp);
 321         fflush(fp);
 322         ftruncate(fileno(fp), ftell(fp));
 323
 324         /* and deallocate the memory we used */
 325         while (textlist != NULL) {
 326                 ptr = textlist->next;
 327                 free(textlist);
 328                 textlist = ptr;
 329         }
 330 }
 331
 332 /* Read a message from the server
 333  */
 334 int read_message(
 335         long num,   /* message number */
 336         char pagin) /* 0 = normal read, 1 = read with pagination, 2 = header */
 337 {
 338         char buf[256];
 339         char m_subject[256];
 340         char from[256], node[256], rfca[256];
 341         char now[256];
 342         int format_type = 0;
 343         int fr = 0;
 344         int nhdr = 0;
 345
 346         sigcaught = 0;
 347         sttybbs(1);
 348
 349         sprintf(buf, "MSG0 %ld|%d", num, (pagin == READ_HEADER ? 1 : 0));
 350         serv_puts(buf);
 351         serv_gets(buf);
 352         if (buf[0] != '1') {
 353                 printf("*** msg #%ld: %s\n", num, buf);
 354                 ++lines_printed;
 355                 lines_printed =
 356                     checkpagin(lines_printed, pagin, screenheight);
 357                 sttybbs(0);
 358                 return (0);
 359         }
 360
 361         strcpy(m_subject, "");
 362         strcpy(reply_to, "nobody ... xxxxx");
 363         strcpy(from, "");
 364         strcpy(node, "");
 365         strcpy(rfca, "");
 366
 367         printf("\n");
 368         ++lines_printed;
 369         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 370         printf(" ");
 371         if (pagin == 1) {
 372                 color(BRIGHT_CYAN);
 373         }
 374
 375         if (pagin == 2) {
 376                 while (serv_gets(buf), strcmp(buf, "000")) {
 377                         if (buf[4] == '=') {
 378                                 printf("%s\n", buf);
 379                                 ++lines_printed;
 380                                 lines_printed =
 381                                     checkpagin(lines_printed,
 382                                                pagin, screenheight);
 383                         }
 384                 }
 385                 sttybbs(0);
 386                 return (0);
 387         }
 388
 389         while (serv_gets(buf), strncasecmp(buf, "text", 4)) {
 390                 if (!strncasecmp(buf, "nhdr=yes", 8))
 391                         nhdr = 1;
 392                 if (!strncasecmp(buf, "from=", 5)) {
 393                         strcpy(from, &buf[5]);
 394                 }
 395                 if (nhdr == 1)
 396                         buf[0] = '_';
 397                 if (!strncasecmp(buf, "type=", 5))
 398                         format_type = atoi(&buf[5]);
 399                 if ((!strncasecmp(buf, "msgn=", 5))
 400                     && (rc_display_message_numbers)) {
 401                         color(DIM_WHITE);
 402                         printf("[");
 403                         color(BRIGHT_WHITE);
 404                         printf("#%s", &buf[5]);
 405                         color(DIM_WHITE);
 406                         printf("] ");
 407                 }
 408                 if (!strncasecmp(buf, "from=", 5)) {
 409                         color(DIM_WHITE);
 410                         printf("from ");
 411                         color(BRIGHT_CYAN);
 412                         printf("%s ", &buf[5]);
 413                 }
 414                 if (!strncasecmp(buf, "subj=", 5))
 415                         strcpy(m_subject, &buf[5]);
 416
 417                 if (!strncasecmp(buf, "rfca=", 5)) {
 418                         safestrncpy(rfca, &buf[5], sizeof(rfca) - 5);
 419                         color(DIM_WHITE);
 420                         printf("<");
 421                         color(BRIGHT_BLUE);
 422                         printf("%s", &buf[5]);
 423                         color(DIM_WHITE);
 424                         printf("> ");
 425                 }
 426                 if ((!strncasecmp(buf, "hnod=", 5))
 427                     && (strcasecmp(&buf[5], serv_info.serv_humannode))
 428                     && (strlen(rfca) == 0)) {
 429                         color(DIM_WHITE);
 430                         printf("(");
 431                         color(BRIGHT_WHITE);
 432                         printf("%s", &buf[5]);
 433                         color(DIM_WHITE);
 434                         printf(") ");
 435                 }
 436                 if ((!strncasecmp(buf, "room=", 5))
 437                     && (strcasecmp(&buf[5], room_name))
 438                     && (strlen(rfca) == 0)) {
 439                         color(DIM_WHITE);
 440                         printf("in ");
 441                         color(BRIGHT_MAGENTA);
 442                         printf("%s> ", &buf[5]);
 443                 }
 444
 445                 if (!strncasecmp(buf, "node=", 5)) {
 446                         safestrncpy(node, &buf[5], sizeof(buf) - 5);
 447                         if ((room_flags & QR_NETWORK)
 448                             ||
 449                             ((strcasecmp
 450                               (&buf[5], serv_info.serv_nodename)
 451                               &&
 452                               (strcasecmp(&buf[5], serv_info.serv_fqdn)))))
 453                         {
 454                                 if (strlen(rfca) == 0) {
 455                                         color(DIM_WHITE);
 456                                         printf("@");
 457                                         color(BRIGHT_YELLOW);
 458                                         printf("%s ", &buf[5]);
 459                                 }
 460                         }
 461                 }
 462
 463                 if (!strncasecmp(buf, "rcpt=", 5)) {
 464                         color(DIM_WHITE);
 465                         printf("to ");
 466                         color(BRIGHT_CYAN);
 467                         printf("%s ", &buf[5]);
 468                 }
 469                 if (!strncasecmp(buf, "time=", 5)) {
 470                         fmt_date(now, atol(&buf[5]));
 471                         printf("%s ", now);
 472                 }
 473         }
 474
 475         if (nhdr == 1) {
 476                 if (!is_room_aide) {
 477                         printf(" ****");
 478                 } else {
 479                         printf(" %s", from);
 480                 }
 481         }
 482         printf("\n");
 483
 484         if (strlen(rfca) > 0) {
 485                 strcpy(reply_to, rfca);
 486         } else {
 487                 snprintf(reply_to, sizeof(reply_to), "%s @ %s", from,
 488                          node);
 489         }
 490
 491         if (pagin == 1)
 492                 color(BRIGHT_WHITE);
 493         ++lines_printed;
 494         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 495
 496         if (strlen(m_subject) > 0) {
 497                 printf("Subject: %s\n", m_subject);
 498                 ++lines_printed;
 499                 lines_printed =
 500                     checkpagin(lines_printed, pagin, screenheight);
 501         }
 502
 503         if (format_type == 0) {
 504                 fr = fmout(screenwidth, NULL,
 505                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 506         } else {
 507                 while (serv_gets(buf), strcmp(buf, "000")) {
 508                         if (sigcaught == 0) {
 509                                 printf("%s\n", buf);
 510                                 lines_printed = lines_printed + 1 +
 511                                     (strlen(buf) / screenwidth);
 512                                 lines_printed =
 513                                     checkpagin(lines_printed, pagin,
 514                                                screenheight);
 515                         }
 516                 }
 517                 fr = sigcaught;
 518         }
 519         printf("\n");
 520         ++lines_printed;
 521         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 522
 523         if (pagin == 1)
 524                 color(DIM_WHITE);
 525         sttybbs(0);
 526         return (fr);
 527 }
 528
 529 /*
 530  * replace string function for the built-in editor
 531  */
 532 void replace_string(char *filename, long int startpos)
 533 {
 534         char buf[512];
 535         char srch_str[128];
 536         char rplc_str[128];
 537         FILE *fp;
 538         int a;
 539         long rpos, wpos;
 540         char *ptr;
 541         int substitutions = 0;
 542         long msglen = 0L;
 543
 544         printf("Enter text to be replaced:\n: ");
 545         getline(srch_str, 128);
 546         if (strlen(srch_str) == 0)
 547                 return;
 548
 549         printf("Enter text to replace it with:\n: ");
 550         getline(rplc_str, 128);
 551
 552         fp = fopen(filename, "r+");
 553         if (fp == NULL)
 554                 return;
 555
 556         wpos = startpos;
 557         fseek(fp, startpos, 0);
 558         strcpy(buf, "");
 559         while (a = getc(fp), a > 0) {
 560                 ++msglen;
 561                 buf[strlen(buf) + 1] = 0;
 562                 buf[strlen(buf)] = a;
 563                 if (strlen(buf) >= strlen(srch_str)) {
 564                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 565                         if (!strncasecmp(ptr, srch_str, strlen(srch_str))) {
 566                                 strcpy(ptr, rplc_str);
 567                                 ++substitutions;
 568                         }
 569                 }
 570                 if (strlen(buf) > 384) {
 571                         rpos = ftell(fp);
 572                         fseek(fp, wpos, 0);
 573                         fwrite((char *) buf, 128, 1, fp);
 574                         strcpy(buf, &buf[128]);
 575                         wpos = ftell(fp);
 576                         fseek(fp, rpos, 0);
 577                 }
 578         }
 579         fseek(fp, wpos, 0);
 580         if (strlen(buf) > 0)
 581                 fwrite((char *) buf, strlen(buf), 1, fp);
 582         wpos = ftell(fp);
 583         fclose(fp);
 584         truncate(filename, wpos);
 585         printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 586 }
 587
 588 /*
 589  * Function to begin composing a new message
 590  */
 591 int make_message(char *filename,        /* temporary file name */
 592                 char *recipient,        /* NULL if it's not mail */
 593                 int anon_type,          /* see MES_ types in header file */
 594                 int format_type,
 595                 int mode)
 596 {
 597         FILE *fp;
 598         int a, b, e_ex_code;
 599         long beg;
 600         char datestr[64];
 601         int cksum = 0;
 602
 603         if (mode == 2)
 604                 if (strlen(editor_path) == 0) {
 605                         printf
 606                             ("*** No editor available, using built-in editor\n");
 607                         mode = 0;
 608                 }
 609
 610         fmt_date(datestr, time(NULL));
 611
 612         if (room_flags & QR_ANONONLY) {
 613                 printf(" ****");
 614         }
 615         else {
 616                 printf(" %s from %s", datestr, fullname);
 617                 if (strlen(recipient) > 0) {
 618                         printf(" to %s", recipient);
 619                 }
 620         }
 621         printf("\n");
 622
 623         beg = 0L;
 624
 625         if (mode == 1) {
 626                 printf("(Press ctrl-d when finished)\n");
 627         }
 628         if (mode == 0) {
 629                 fp = fopen(filename, "r");
 630                 if (fp != NULL) {
 631                         fmout(screenwidth, fp, 0, screenheight, 0, 0);
 632                         beg = ftell(fp);
 633                         fclose(fp);
 634                 } else {
 635                         fp = fopen(filename, "w");
 636                         if (fp == NULL) {
 637                                 printf("*** Error opening temp file!\n"
 638                                         "    %s: %s\n",
 639                                         filename, strerror(errno));
 640                         return(1);
 641                         }
 642                         fclose(fp);
 643                 }
 644         }
 645
 646 ME1:    switch (mode) {
 647
 648         case 0:
 649                 fp = fopen(filename, "r+");
 650                 if (fp == NULL) {
 651                         printf("*** Error opening temp file!\n"
 652                                 "    %s: %s\n",
 653                                 filename, strerror(errno));
 654                         return(1);
 655                 }
 656                 citedit(fp);
 657                 fclose(fp);
 658                 goto MECR;
 659
 660         case 1:
 661                 fp = fopen(filename, "w");
 662                 if (fp == NULL) {
 663                         printf("*** Error opening temp file!\n"
 664                                 "    %s: %s\n",
 665                                 filename, strerror(errno));
 666                         return(1);
 667                 }
 668                 do {
 669                         a = inkey();
 670                         if (a == 255)
 671                                 a = 32;
 672                         if (a == 13)
 673                                 a = 10;
 674                         if (a != 4) {
 675                                 putc(a, fp);
 676                                 putc(a, stdout);
 677                         }
 678                         if (a == 10)
 679                                 putc(13, stdout);
 680                 } while (a != 4);
 681                 fclose(fp);
 682                 break;
 683
 684         case 2:
 685                 e_ex_code = 1;  /* start with a failed exit code */
 686                 editor_pid = fork();
 687                 cksum = file_checksum(filename);
 688                 if (editor_pid == 0) {
 689                         chmod(filename, 0600);
 690                         sttybbs(SB_RESTORE);
 691                         execlp(editor_path, editor_path, filename, NULL);
 692                         exit(1);
 693                 }
 694                 if (editor_pid > 0)
 695                         do {
 696                                 e_ex_code = 0;
 697                                 b = ka_wait(&e_ex_code);
 698                         } while ((b != editor_pid) && (b >= 0));
 699                 editor_pid = (-1);
 700                 sttybbs(0);
 701                 break;
 702         }
 703
 704 MECR:   if (mode == 2) {
 705                 if (file_checksum(filename) == cksum) {
 706                         printf("*** Aborted message.\n");
 707                         e_ex_code = 1;
 708                 }
 709                 if (e_ex_code == 0)
 710                         goto MEFIN;
 711                 goto MEABT2;
 712         }
 713
 714         b = keymenu("Entry command (? for options)",
 715                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 716                     "<R>eplace string|<H>old message");
 717
 718         if (b == 'a')
 719                 goto MEABT;
 720         if (b == 'c')
 721                 goto ME1;
 722         if (b == 's')
 723                 goto MEFIN;
 724         if (b == 'p') {
 725                 printf(" %s from %s", datestr, fullname);
 726                 if (strlen(recipient) > 0)
 727                         printf(" to %s", recipient);
 728                 printf("\n");
 729                 fp = fopen(filename, "r");
 730                 if (fp != NULL) {
 731                         fmout(screenwidth, fp,
 732                               ((userflags & US_PAGINATOR) ? 1 : 0),
 733                               screenheight, 0, 0);
 734                         beg = ftell(fp);
 735                         fclose(fp);
 736                 }
 737                 goto MECR;
 738         }
 739         if (b == 'r') {
 740                 replace_string(filename, 0L);
 741                 goto MECR;
 742         }
 743         if (b == 'h') {
 744                 return (2);
 745         }
 746
 747 MEFIN:  return (0);
 748
 749 MEABT:  printf("Are you sure? ");
 750         if (yesno() == 0) {
 751                 goto ME1;
 752         }
 753 MEABT2: unlink(filename);
 754         return (2);
 755 }
 756
 757 /*
 758  * Transmit message text to the server.
 759  *
 760  * This loop also implements a "tick" counter that displays the progress, if
 761  * we're sending something that will take a long time to transmit.
 762  */
 763 void transmit_message(FILE *fp)
 764 {
 765         char buf[256];
 766         int ch, a;
 767         long msglen;
 768         time_t lasttick;
 769
 770         fseek(fp, 0L, SEEK_END);
 771         msglen = ftell(fp);
 772         rewind(fp);
 773         lasttick = time(NULL);
 774         strcpy(buf, "");
 775         while (ch = getc(fp), (ch >= 0)) {
 776                 if (ch == 10) {
 777                         if (!strcmp(buf, "000"))
 778                                 strcpy(buf, ">000");
 779                         serv_puts(buf);
 780                         strcpy(buf, "");
 781                 } else {
 782                         a = strlen(buf);
 783                         buf[a + 1] = 0;
 784                         buf[a] = ch;
 785                         if ((ch == 32) && (strlen(buf) > 200)) {
 786                                 buf[a] = 0;
 787                                 if (!strcmp(buf, "000"))
 788                                         strcpy(buf, ">000");
 789                                 serv_puts(buf);
 790                                 strcpy(buf, "");
 791                         }
 792                         if (strlen(buf) > 250) {
 793                                 if (!strcmp(buf, "000"))
 794                                         strcpy(buf, ">000");
 795                                 serv_puts(buf);
 796                                 strcpy(buf, "");
 797                         }
 798                 }
 799
 800                 if ((time(NULL) - lasttick) > 2L) {
 801                         printf(" %3ld%% completed\r",
 802                                ((ftell(fp) * 100L) / msglen));
 803                         fflush(stdout);
 804                         lasttick = time(NULL);
 805                 }
 806
 807         }
 808         serv_puts(buf);
 809         printf("                \r");
 810         fflush(stdout);
 811 }
 812
 813
 814
 815 /*
 816  * entmsg()  -  edit and create a message
 817  *              returns 0 if message was saved
 818  */
 819 int entmsg(int is_reply,        /* nonzero if this was a <R>eply command */
 820                 int c)          /* */
 821 {
 822         char buf[300];
 823         char cmd[256];
 824         int a, b;
 825         int need_recp = 0;
 826         int mode;
 827         long highmsg;
 828         FILE *fp;
 829
 830         if (c > 0)
 831                 mode = 1;
 832         else
 833                 mode = 0;
 834
 835         /*
 836          * First, check to see if we have permission to enter a message in
 837          * this room.  The server will return an error code if we can't.
 838          */
 839         sprintf(cmd, "ENT0 0||0|%d", mode);
 840         serv_puts(cmd);
 841         serv_gets(cmd);
 842
 843         if ((strncmp(cmd, "570", 3)) && (strncmp(cmd, "200", 3))) {
 844                 printf("%s\n", &cmd[4]);
 845                 return (1);
 846         }
 847
 848         /* Error code 570 is special.  It means that we CAN enter a message
 849          * in this room, but a recipient needs to be specified.
 850          */
 851         need_recp = 0;
 852         if (!strncmp(cmd, "570", 3))
 853                 need_recp = 1;
 854
 855         /* If the user is a dumbass, tell them how to type. */
 856         if ((userflags & US_EXPERT) == 0)
 857                 formout("entermsg");
 858
 859         /* Handle the selection of a recipient, if necessary. */
 860         strcpy(buf, "");
 861         if (need_recp == 1) {
 862                 if (axlevel >= 2) {
 863                         if (is_reply) {
 864                                 strcpy(buf, reply_to);
 865                         } else {
 866                                 printf("Enter recipient: ");
 867                                 getline(buf, 60);
 868                                 if (strlen(buf) == 0)
 869                                         return (1);
 870                         }
 871                 } else
 872                         strcpy(buf, "sysop");
 873         }
 874
 875         b = 0;
 876         if (room_flags & QR_ANONOPT) {
 877                 printf("Anonymous (Y/N)? ");
 878                 if (yesno() == 1)
 879                         b = 1;
 880         }
 881
 882         /* If it's mail, we've got to check the validity of the recipient... */
 883         if (strlen(buf) > 0) {
 884                 sprintf(cmd, "ENT0 0|%s|%d|%d", buf, b, mode);
 885                 serv_puts(cmd);
 886                 serv_gets(cmd);
 887                 if (cmd[0] != '2') {
 888                         printf("%s\n", &cmd[4]);
 889                         return (1);
 890                 }
 891         }
 892
 893         /* Learn the number of the newest message in in the room, so we can
 894          * tell upon saving whether someone else has posted too.
 895          */
 896         num_msgs = 0;
 897         serv_puts("MSGS LAST|1");
 898         serv_gets(cmd);
 899         if (cmd[0] != '1') {
 900                 printf("%s\n", &cmd[5]);
 901         } else {
 902                 while (serv_gets(cmd), strcmp(cmd, "000")) {
 903                         msg_arr[num_msgs++] = atol(cmd);
 904                 }
 905         }
 906
 907         /* Now compose the message... */
 908         if (make_message(temp, buf, b, 0, c) != 0) {
 909                 return (2);
 910         }
 911
 912         /* Reopen the temp file that was created, so we can send it */
 913         fp = fopen(temp, "r");
 914
 915         /* Yes, unlink it now, so it doesn't stick around if we crash */
 916         unlink(temp);
 917
 918         if (fp == NULL) {
 919                 printf("*** Internal error while trying to save message!\n"
 920                         "    %s: %s\n",
 921                         temp, strerror(errno));
 922                 return(errno);
 923         }
 924
 925         /* Transmit message to the server */
 926         sprintf(cmd, "ENT0 1|%s|%d|%d||", buf, b, mode);
 927         serv_puts(cmd);
 928         serv_gets(cmd);
 929         if (cmd[0] != '4') {
 930                 printf("%s\n", &cmd[4]);
 931                 return (1);
 932         }
 933
 934         transmit_message(fp);
 935         serv_puts("000");
 936
 937         fclose(fp);
 938
 939         highmsg = msg_arr[num_msgs - 1];
 940         num_msgs = 0;
 941         serv_puts("MSGS NEW");
 942         serv_gets(cmd);
 943         if (cmd[0] != '1') {
 944                 printf("%s\n", &cmd[5]);
 945         } else {
 946                 while (serv_gets(cmd), strcmp(cmd, "000")) {
 947                         msg_arr[num_msgs++] = atol(cmd);
 948                 }
 949         }
 950
 951         /* get new highest message number in room to set lrp for goto... */
 952         maxmsgnum = msg_arr[num_msgs - 1];
 953
 954         /* now see if anyone else has posted in here */
 955         b = (-1);
 956         for (a = 0; a < num_msgs; ++a) {
 957                 if (msg_arr[a] > highmsg) {
 958                         ++b;
 959                 }
 960         }
 961
 962         /* In the Mail> room, this algorithm always counts one message
 963          * higher than in public rooms, so we decrement it by one.
 964          */
 965         if (need_recp) {
 966                 --b;
 967         }
 968
 969         if (b == 1) {
 970                 printf("*** 1 additional message has been entered "
 971                         "in this room by another user.\n");
 972         }
 973         else if (b > 1) {
 974                 printf("*** %d additional messages have been entered "
 975                         "in this room by other users.\n", b);
 976         }
 977
 978         return(0);
 979 }
 980
 981 /*
 982  * Do editing on a quoted file
 983  */
 984 void process_quote(void)
 985 {
 986         FILE *qfile, *tfile;
 987         char buf[128];
 988         int line, qstart, qend;
 989
 990         /* Unlink the second temp file as soon as it's opened, so it'll get
 991          * deleted even if the program dies
 992          */
 993         qfile = fopen(temp2, "r");
 994         unlink(temp2);
 995
 996         /* Display the quotable text with line numbers added */
 997         line = 0;
 998         fgets(buf, 128, qfile);
 999         while (fgets(buf, 128, qfile) != NULL) {
1000                 printf("%2d %s", ++line, buf);
1001         }
1002         printf("Begin quoting at [ 1] : ");
1003         getline(buf, 3);
1004         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1005         printf("  End quoting at [%d] : ", line);
1006         getline(buf, 3);
1007         qend = (buf[0] == 0) ? (line) : atoi(buf);
1008         rewind(qfile);
1009         line = 0;
1010         fgets(buf, 128, qfile);
1011         tfile = fopen(temp, "w");
1012         while (fgets(buf, 128, qfile) != NULL) {
1013                 if ((++line >= qstart) && (line <= qend))
1014                         fprintf(tfile, " >%s", buf);
1015         }
1016         fprintf(tfile, " \n");
1017         fclose(qfile);
1018         fclose(tfile);
1019         chmod(temp, 0666);
1020 }
1021
1022
1023
1024 /*
1025  * List the URL's which were embedded in the previous message
1026  */
1027 void list_urls()
1028 {
1029         int i;
1030         char cmd[256];
1031
1032         if (num_urls == 0) {
1033                 printf("There were no URL's in the previous message.\n\n");
1034                 return;
1035         }
1036
1037         for (i = 0; i < num_urls; ++i) {
1038                 printf("%3d %s\n", i + 1, urls[i]);
1039         }
1040
1041         if ((i = num_urls) != 1)
1042                 i = intprompt("Display which one", 1, 1, num_urls);
1043
1044         sprintf(cmd, rc_url_cmd, urls[i - 1]);
1045         system(cmd);
1046         printf("\n");
1047 }
1048
1049 /*
1050  * Read the messages in the current room
1051  */
1052 void readmsgs(
1053         int c,          /* 0=Read all  1=Read new  2=Read old 3=Read last q */
1054         int rdir,       /* 1=Forward (-1)=Reverse */
1055         int q           /* Number of msgs to read (if c==3) */
1056 ) {
1057         int a, b, e, f, g, start;
1058         int savedpos;
1059         int hold_sw = 0;
1060         char arcflag = 0;
1061         char quotflag = 0;
1062         int hold_color = 0;
1063         char prtfile[PATH_MAX];
1064         char pagin;
1065         char cmd[256];
1066         char targ[ROOMNAMELEN];
1067         char filename[256];
1068
1069         if (c < 0)
1070                 b = (MAXMSGS - 1);
1071         else
1072                 b = 0;
1073
1074         strcpy(prtfile, tmpnam(NULL));
1075
1076         num_msgs = 0;
1077         strcpy(cmd, "MSGS ");
1078         switch (c) {
1079         case 0:
1080                 strcat(cmd, "ALL");
1081                 break;
1082         case 1:
1083                 strcat(cmd, "NEW");
1084                 break;
1085         case 2:
1086                 strcat(cmd, "OLD");
1087                 break;
1088         case 3:
1089                 sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
1090                 break;
1091         }
1092         serv_puts(cmd);
1093         serv_gets(cmd);
1094         if (cmd[0] != '1') {
1095                 printf("%s\n", &cmd[5]);
1096         } else {
1097                 while (serv_gets(cmd), strcmp(cmd, "000")) {
1098                         if (num_msgs == MAXMSGS) {
1099                                 memcpy(&msg_arr[0], &msg_arr[1],
1100                                        (sizeof(long) * (MAXMSGS - 1)));
1101                                 --num_msgs;
1102                         }
1103                         msg_arr[num_msgs++] = atol(cmd);
1104                 }
1105         }
1106
1107         lines_printed = 0;
1108
1109         /* this loop cycles through each message... */
1110         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1111         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1112                 while (msg_arr[a] == 0L) {
1113                         a = a + rdir;
1114                         if ((a == MAXMSGS) || (a == (-1)))
1115                                 return;
1116                 }
1117
1118 RAGAIN:         pagin = ((arcflag == 0)
1119                          && (quotflag == 0)
1120                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1121
1122                 /* If we're doing a quote, set the screenwidth to 72 */
1123                 if (quotflag) {
1124                         hold_sw = screenwidth;
1125                         screenwidth = 72;
1126                 }
1127
1128                 /* If printing or archiving, set the screenwidth to 80 */
1129                 if (arcflag) {
1130                         hold_sw = screenwidth;
1131                         screenwidth = 80;
1132                 }
1133
1134                 /* now read the message... */
1135                 e = read_message(msg_arr[a], pagin);
1136
1137                 /* ...and set the screenwidth back if we have to */
1138                 if ((quotflag) || (arcflag)) {
1139                         screenwidth = hold_sw;
1140                 }
1141 RMSGREAD:       fflush(stdout);
1142                 highest_msg_read = msg_arr[a];
1143                 if (quotflag) {
1144                         freopen("/dev/tty", "r+", stdout);
1145                         quotflag = 0;
1146                         enable_color = hold_color;
1147                         process_quote();
1148                 }
1149                 if (arcflag) {
1150                         freopen("/dev/tty", "r+", stdout);
1151                         arcflag = 0;
1152                         enable_color = hold_color;
1153                         f = fork();
1154                         if (f == 0) {
1155                                 freopen(prtfile, "r", stdin);
1156                                 sttybbs(SB_RESTORE);
1157                                 ka_system(printcmd);
1158                                 sttybbs(SB_NO_INTR);
1159                                 unlink(prtfile);
1160                                 exit(0);
1161                         }
1162                         if (f > 0)
1163                                 do {
1164                                         g = wait(NULL);
1165                                 } while ((g != f) && (g >= 0));
1166                         printf("Message printed.\n");
1167                 }
1168                 if (e == 3)
1169                         return;
1170                 if (((userflags & US_NOPROMPT) || (e == 2))
1171                     && (((room_flags & QR_MAILBOX) == 0)
1172                         || (rc_force_mail_prompts == 0))) {
1173                         e = 'n';
1174                 } else {
1175                         color(DIM_WHITE);
1176                         printf("(");
1177                         color(BRIGHT_WHITE);
1178                         printf("%d", num_msgs - a - 1);
1179                         color(DIM_WHITE);
1180                         printf(") ");
1181
1182                         keyopt
1183                             ("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1184                         if (rc_url_cmd[0] && num_urls)
1185                                 keyopt("<U>RL View ");
1186                         keyopt("<?>Help/others -> ");
1187
1188                         do {
1189                                 lines_printed = 2;
1190                                 e = (inkey() & 127);
1191                                 e = tolower(e);
1192 /* return key same as <N> */ if (e == 13)
1193                                         e = 'n';
1194 /* space key same as <N> */ if (e == 32)
1195                                         e = 'n';
1196 /* del/move for aides only */
1197                                     if ((!is_room_aide)
1198                                         && ((room_flags & QR_MAILBOX) ==
1199                                             0)) {
1200                                         if ((e == 'd') || (e == 'm')
1201                                             || (e == 'c'))
1202                                                 e = 0;
1203                                 }
1204 /* print only if available */
1205                                 if ((e == 'p') && (strlen(printcmd) == 0))
1206                                         e = 0;
1207 /* can't file if not allowed */
1208                                     if ((e == 'f')
1209                                         && (rc_allow_attachments == 0))
1210                                         e = 0;
1211 /* link only if browser avail*/
1212                                     if ((e == 'u')
1213                                         && (strlen(rc_url_cmd) == 0))
1214                                         e = 0;
1215                         } while ((e != 'a') && (e != 'n') && (e != 's')
1216                                  && (e != 'd') && (e != 'm') && (e != 'p')
1217                                  && (e != 'q') && (e != 'b') && (e != 'h')
1218                                  && (e != 'r') && (e != 'f') && (e != '?')
1219                                  && (e != 'u') && (e != 'c'));
1220                         switch (e) {
1221                         case 's':
1222                                 printf("Stop\r");
1223                                 break;
1224                         case 'a':
1225                                 printf("Again\r");
1226                                 break;
1227                         case 'd':
1228                                 printf("Delete\r");
1229                                 break;
1230                         case 'm':
1231                                 printf("Move\r");
1232                                 break;
1233                         case 'c':
1234                                 printf("Copy\r");
1235                                 break;
1236                         case 'n':
1237                                 printf("Next\r");
1238                                 break;
1239                         case 'p':
1240                                 printf("Print\r");
1241                                 break;
1242                         case 'q':
1243                                 printf("Quote\r");
1244                                 break;
1245                         case 'b':
1246                                 printf("Back\r");
1247                                 break;
1248                         case 'h':
1249                                 printf("Header\r");
1250                                 break;
1251                         case 'r':
1252                                 printf("Reply\r");
1253                                 break;
1254                         case 'f':
1255                                 printf("File\r");
1256                                 break;
1257                         case 'u':
1258                                 printf("URL's\r");
1259                                 break;
1260                         case '?':
1261                                 printf("? <help>\r");
1262                                 break;
1263                         }
1264                         if (userflags & US_DISAPPEAR)
1265                                 printf("\r%79s\r", "");
1266                         else
1267                                 printf("\n");
1268                         fflush(stdout);
1269                 }
1270                 switch (e) {
1271                 case '?':
1272                         printf("Options available here:\n");
1273                         printf(" ?  Help (prints this message)\n");
1274                         printf(" S  Stop reading immediately\n");
1275                         printf(" A  Again (repeats last message)\n");
1276                         printf(" N  Next (continue with next message)\n");
1277                         printf(" B  Back (go back to previous message)\n");
1278                         if ((is_room_aide)
1279                             || (room_flags & QR_MAILBOX)) {
1280                                 printf(" D  Delete this message\n");
1281                                 printf
1282                                     (" M  Move message to another room\n");
1283                                 printf
1284                                     (" C  Copy message to another room\n");
1285                         }
1286                         if (strlen(printcmd) > 0)
1287                                 printf(" P  Print this message\n");
1288                         printf
1289                             (" Q  Quote portions of this message for your next post\n");
1290                         printf
1291                             (" H  Headers (display message headers only)\n");
1292                         if (is_mail)
1293                                 printf(" R  Reply to this message\n");
1294                         if (rc_allow_attachments)
1295                                 printf
1296                                     (" F  (save attachments to a file)\n");
1297                         if (strlen(rc_url_cmd) > 0)
1298                                 printf(" U  (list URL's for display)\n");
1299                         printf("\n");
1300                         goto RMSGREAD;
1301                 case 'p':
1302                         fflush(stdout);
1303                         freopen(prtfile, "w", stdout);
1304                         arcflag = 1;
1305                         hold_color = enable_color;
1306                         enable_color = 0;
1307                         goto RAGAIN;
1308                 case 'q':
1309                         fflush(stdout);
1310                         freopen(temp2, "w", stdout);
1311                         quotflag = 1;
1312                         hold_color = enable_color;
1313                         enable_color = 0;
1314                         goto RAGAIN;
1315                 case 's':
1316                         return;
1317                 case 'a':
1318                         goto RAGAIN;
1319                 case 'b':
1320                         a = a - (rdir * 2);
1321                         break;
1322                 case 'm':
1323                 case 'c':
1324                         newprompt("Enter target room: ",
1325                                   targ, ROOMNAMELEN - 1);
1326                         if (strlen(targ) > 0) {
1327                                 sprintf(cmd, "MOVE %ld|%s|%d",
1328                                         msg_arr[a], targ,
1329                                         (e == 'c' ? 1 : 0));
1330                                 serv_puts(cmd);
1331                                 serv_gets(cmd);
1332                                 printf("%s\n", &cmd[4]);
1333                                 if (cmd[0] == '2')
1334                                         msg_arr[a] = 0L;
1335                         } else {
1336                                 goto RMSGREAD;
1337                         }
1338                         if (cmd[0] != '2')
1339                                 goto RMSGREAD;
1340                         break;
1341                 case 'f':
1342                         newprompt("Which section? ", filename,
1343                                   ((sizeof filename) - 1));
1344                         snprintf(cmd, sizeof cmd,
1345                                  "OPNA %ld|%s", msg_arr[a], filename);
1346                         serv_puts(cmd);
1347                         serv_gets(cmd);
1348                         if (cmd[0] == '2') {
1349                                 extract(filename, &cmd[4], 2);
1350                                 download_to_local_disk(filename,
1351                                                        extract_int(&cmd[4],
1352                                                                    0));
1353                         } else {
1354                                 printf("%s\n", &cmd[4]);
1355                         }
1356                         goto RMSGREAD;
1357                 case 'd':
1358                         printf("*** Delete this message? ");
1359                         if (yesno() == 1) {
1360                                 sprintf(cmd, "DELE %ld", msg_arr[a]);
1361                                 serv_puts(cmd);
1362                                 serv_gets(cmd);
1363                                 printf("%s\n", &cmd[4]);
1364                                 if (cmd[0] == '2')
1365                                         msg_arr[a] = 0L;
1366                         } else {
1367                                 goto RMSGREAD;
1368                         }
1369                         break;
1370                 case 'h':
1371                         read_message(msg_arr[a], READ_HEADER);
1372                         goto RMSGREAD;
1373                 case 'r':
1374                         savedpos = num_msgs;
1375                         entmsg(1, (DEFAULT_ENTRY == 46 ? 2 : 0));
1376                         num_msgs = savedpos;
1377                         goto RMSGREAD;
1378                 case 'u':
1379                         list_urls();
1380                         goto RMSGREAD;
1381                 }
1382         }                       /* end for loop */
1383 }                               /* end read routine */
1384
1385
1386
1387
1388 /*
1389  * View and edit a system message
1390  */
1391 void edit_system_message(char *which_message)
1392 {
1393         char desc[64];
1394         char read_cmd[64];
1395         char write_cmd[64];
1396
1397         sprintf(desc, "system message '%s'", which_message);
1398         sprintf(read_cmd, "MESG %s", which_message);
1399         sprintf(write_cmd, "EMSG %s", which_message);
1400         do_edit(desc, read_cmd, "NOOP", write_cmd);
1401 }
1402
1403
1404
1405
1406 /*
1407  * Verify the message base
1408  */
1409 void check_message_base(void)
1410 {
1411         char buf[256];
1412
1413         printf
1414             ("Please read the documentation before running this command.\n"
1415             "Having done so, do you still want to check the message base? ");
1416         if (yesno() == 0)
1417                 return;
1418
1419         serv_puts("FSCK");
1420         serv_gets(buf);
1421         if (buf[0] != '1') {
1422                 printf("%s\n", &buf[4]);
1423                 return;
1424         }
1425
1426         while (serv_gets(buf), strcmp(buf, "000")) {
1427                 printf("%s\n", buf);
1428         }
1429 }