citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel 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
  22 #if TIME_WITH_SYS_TIME
  23 # include <sys/time.h>
  24 # include <time.h>
  25 #else
  26 # if HAVE_SYS_TIME_H
  27 #  include <sys/time.h>
  28 # else
  29 #  include <time.h>
  30 # endif
  31 #endif
  32
  33 #ifdef HAVE_PTHREAD_H
  34 #include <pthread.h>
  35 #endif
  36
  37 #include <stdarg.h>
  38 #include "citadel.h"
  39 #include "citadel_ipc.h"
  40 #include "citadel_decls.h"
  41 #include "messages.h"
  42 #include "commands.h"
  43 #include "rooms.h"
  44 #include "tools.h"
  45 #include "html.h"
  46 #ifndef HAVE_SNPRINTF
  47 #include "snprintf.h"
  48 #endif
  49 #include "screen.h"
  50
  51 #define MAXWORDBUF SIZ
  52 #define NO_REPLY_TO     "nobody ... xxxxxx"
  53
  54 char reply_to[SIZ];
  55 char reply_subject[SIZ];
  56
  57 struct cittext {
  58         struct cittext *next;
  59         char text[MAXWORDBUF];
  60 };
  61
  62 void stty_ctdl(int cmd);
  63 int haschar(const char *st, int ch);
  64 void ctdl_getline(char *string, int lim);
  65 int file_checksum(char *filename);
  66 void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
  67
  68 unsigned long *msg_arr = NULL;
  69 int msg_arr_size = 0;
  70 int num_msgs;
  71 char rc_alt_semantics;
  72 extern char room_name[];
  73 extern unsigned room_flags;
  74 extern long highest_msg_read;
  75 extern char temp[];
  76 extern char temp2[];
  77 extern int screenwidth;
  78 extern int screenheight;
  79 extern long maxmsgnum;
  80 extern char is_mail;
  81 extern char is_aide;
  82 extern char is_room_aide;
  83 extern char fullname[];
  84 extern char axlevel;
  85 extern unsigned userflags;
  86 extern char sigcaught;
  87 extern char printcmd[];
  88 extern int rc_allow_attachments;
  89 extern int rc_display_message_numbers;
  90 extern int rc_force_mail_prompts;
  91 extern int editor_pid;
  92 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  93 int num_urls = 0;
  94 char urls[MAXURLS][SIZ];
  95 char imagecmd[SIZ];
  96 int has_images = 0;                             /* Current msg has images */
  97 struct parts *last_message_parts = NULL;        /* Parts from last msg */
  98
  99
 100
 101 void ka_sigcatch(int signum)
 102 {
 103         alarm(S_KEEPALIVE);
 104         signal(SIGALRM, ka_sigcatch);
 105         CtdlIPCNoop(ipc_for_signal_handlers);
 106 }
 107
 108
 109 /*
 110  * server keep-alive version of wait() (needed for external editor)
 111  */
 112 pid_t ka_wait(int *kstatus)
 113 {
 114         pid_t p;
 115
 116         alarm(S_KEEPALIVE);
 117         signal(SIGALRM, ka_sigcatch);
 118         do {
 119                 errno = 0;
 120                 p = wait(kstatus);
 121         } while (errno == EINTR);
 122         signal(SIGALRM, SIG_IGN);
 123         alarm(0);
 124         return (p);
 125 }
 126
 127
 128 /*
 129  * version of system() that uses ka_wait()
 130  */
 131 int ka_system(char *shc)
 132 {
 133         pid_t childpid;
 134         pid_t waitpid;
 135         int retcode;
 136
 137         childpid = fork();
 138         if (childpid < 0) {
 139                 color(BRIGHT_RED);
 140                 perror("Cannot fork");
 141                 color(DIM_WHITE);
 142                 return ((pid_t) childpid);
 143         }
 144
 145         if (childpid == 0) {
 146                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 147                 exit(127);
 148         }
 149
 150         if (childpid > 0) {
 151                 do {
 152                         waitpid = ka_wait(&retcode);
 153                 } while (waitpid != childpid);
 154                 return (retcode);
 155         }
 156
 157         return (-1);
 158 }
 159
 160
 161
 162 /*
 163  * add a newline to the buffer...
 164  */
 165 void add_newline(struct cittext *textlist)
 166 {
 167         struct cittext *ptr;
 168
 169         ptr = textlist;
 170         while (ptr->next != NULL)
 171                 ptr = ptr->next;
 172
 173         while (ptr->text[strlen(ptr->text) - 1] == 32)
 174                 ptr->text[strlen(ptr->text) - 1] = 0;
 175         /* strcat(ptr->text,"\n"); */
 176
 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
 185 /*
 186  * add a word to the buffer...
 187  */
 188 void add_word(struct cittext *textlist, char *wordbuf)
 189 {
 190         struct cittext *ptr;
 191
 192         ptr = textlist;
 193         while (ptr->next != NULL)
 194                 ptr = ptr->next;
 195
 196         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 197                 ptr->next = (struct cittext *)
 198                     malloc(sizeof(struct cittext));
 199                 ptr = ptr->next;
 200                 ptr->next = NULL;
 201                 strcpy(ptr->text, "");
 202         }
 203
 204         strcat(ptr->text, wordbuf);
 205         strcat(ptr->text, " ");
 206 }
 207
 208
 209 /*
 210  * begin editing of an opened file pointed to by fp
 211  */
 212 void citedit(CtdlIPC *ipc, FILE * fp)
 213 {
 214         int a, prev, finished, b, last_space;
 215         int appending = 0;
 216         struct cittext *textlist = NULL;
 217         struct cittext *ptr;
 218         char wordbuf[MAXWORDBUF];
 219
 220         /* first, load the text into the buffer */
 221         fseek(fp, 0L, 0);
 222         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 223         textlist->next = NULL;
 224         strcpy(textlist->text, "");
 225
 226         strcpy(wordbuf, "");
 227         prev = (-1);
 228         while (a = getc(fp), a >= 0) {
 229                 appending = 1;
 230                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 231                         add_word(textlist, wordbuf);
 232                         strcpy(wordbuf, "");
 233                         if ((prev == 13) || (prev == 10)) {
 234                                 add_word(textlist, "\n");
 235                                 add_newline(textlist);
 236                                 add_word(textlist, "");
 237                         }
 238                 } else {
 239                         wordbuf[strlen(wordbuf) + 1] = 0;
 240                         wordbuf[strlen(wordbuf)] = a;
 241                 }
 242                 if (strlen(wordbuf) + 3 > screenwidth) {
 243                         add_word(textlist, wordbuf);
 244                         strcpy(wordbuf, "");
 245                 }
 246                 prev = a;
 247         }
 248
 249         /* get text */
 250         finished = 0;
 251         prev = (appending ? 13 : (-1));
 252         strcpy(wordbuf, "");
 253         async_ka_start();
 254         do {
 255                 a = inkey();
 256                 if (a == 10)
 257                         a = 13;
 258                 if (a == 9)
 259                         a = 32;
 260                 if (a == 127)
 261                         a = 8;
 262
 263                 if ((a != 32) && (prev == 13)) {
 264                         add_word(textlist, "\n");
 265                         scr_printf(" ");
 266                 }
 267
 268                 if ((a == 32) && (prev == 13)) {
 269                         add_word(textlist, "\n");
 270                         add_newline(textlist);
 271                 }
 272
 273                 if (a == 8) {
 274                         if (strlen(wordbuf) > 0) {
 275                                 wordbuf[strlen(wordbuf) - 1] = 0;
 276                                 scr_putc(8);
 277                                 scr_putc(32);
 278                                 scr_putc(8);
 279                         }
 280                 } else if (a == 23) {
 281                         do {
 282                                 wordbuf[strlen(wordbuf) - 1] = 0;
 283                                 scr_putc(8);
 284                                 scr_putc(32);
 285                                 scr_putc(8);
 286                         } while (strlen(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 287                 } else if (a == 13) {
 288                         scr_printf("\n");
 289                         if (strlen(wordbuf) == 0)
 290                                 finished = 1;
 291                         else {
 292                                 for (b = 0; b < strlen(wordbuf); ++b)
 293                                         if (wordbuf[b] == 32) {
 294                                                 wordbuf[b] = 0;
 295                                                 add_word(textlist,
 296                                                          wordbuf);
 297                                                 strcpy(wordbuf,
 298                                                        &wordbuf[b + 1]);
 299                                                 b = 0;
 300                                         }
 301                                 add_word(textlist, wordbuf);
 302                                 strcpy(wordbuf, "");
 303                         }
 304                 } else {
 305                         scr_putc(a);
 306                         wordbuf[strlen(wordbuf) + 1] = 0;
 307                         wordbuf[strlen(wordbuf)] = a;
 308                 }
 309                 if ((strlen(wordbuf) + 3) > screenwidth) {
 310                         last_space = (-1);
 311                         for (b = 0; b < strlen(wordbuf); ++b)
 312                                 if (wordbuf[b] == 32)
 313                                         last_space = b;
 314                         if (last_space >= 0) {
 315                                 for (b = 0; b < strlen(wordbuf); ++b)
 316                                         if (wordbuf[b] == 32) {
 317                                                 wordbuf[b] = 0;
 318                                                 add_word(textlist,
 319                                                          wordbuf);
 320                                                 strcpy(wordbuf,
 321                                                        &wordbuf[b + 1]);
 322                                                 b = 0;
 323                                         }
 324                                 for (b = 0; b < strlen(wordbuf); ++b) {
 325                                         scr_putc(8);
 326                                         scr_putc(32);
 327                                         scr_putc(8);
 328                                 }
 329                                 scr_printf("\n%s", wordbuf);
 330                         } else {
 331                                 add_word(textlist, wordbuf);
 332                                 strcpy(wordbuf, "");
 333                                 scr_printf("\n");
 334                         }
 335                 }
 336                 prev = a;
 337         } while (finished == 0);
 338         async_ka_end();
 339
 340         /* write the buffer back to disk */
 341         fseek(fp, 0L, 0);
 342         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 343                 fprintf(fp, "%s", ptr->text);
 344         }
 345         putc(10, fp);
 346         fflush(fp);
 347         ftruncate(fileno(fp), ftell(fp));
 348
 349         /* and deallocate the memory we used */
 350         while (textlist != NULL) {
 351                 ptr = textlist->next;
 352                 free(textlist);
 353                 textlist = ptr;
 354         }
 355 }
 356
 357
 358 /*
 359  * Free the struct parts
 360  */
 361 void free_parts(struct parts *p)
 362 {
 363         struct parts *a_part = p;
 364
 365         while (a_part) {
 366                 struct parts *q;
 367
 368                 q = a_part;
 369                 a_part = a_part->next;
 370                 free(q);
 371         }
 372 }
 373
 374
 375 /*
 376  * Read a message from the server
 377  */
 378 int read_message(CtdlIPC *ipc,
 379         long num,   /* message number */
 380         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 381         FILE *dest) /* Destination file, NULL for screen */
 382 {
 383         char buf[SIZ];
 384         char now[SIZ];
 385         int format_type = 0;
 386         int fr = 0;
 387         int nhdr = 0;
 388         struct ctdlipcmessage *message = NULL;
 389         int r;                          /* IPC response code */
 390         char *converted_text = NULL;
 391         char *lineptr;
 392         char *nextline;
 393         char *searchptr;
 394         int i;
 395         char ch;
 396         int linelen;
 397         int final_line_is_blank = 0;
 398
 399         has_images = 0;
 400
 401         sigcaught = 0;
 402         stty_ctdl(1);
 403
 404         strcpy(reply_to, NO_REPLY_TO);
 405         strcpy(reply_subject, "");
 406
 407         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 408                                 (can_do_msg4 ? 4 : 0),
 409                                 &message, buf);
 410         if (r / 100 != 1) {
 411                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 412                 ++lines_printed;
 413                 lines_printed =
 414                     checkpagin(lines_printed, pagin, screenheight);
 415                 stty_ctdl(0);
 416                 return (0);
 417         }
 418
 419         if (dest) {
 420                 fprintf(dest, "\n ");
 421         } else {
 422                 scr_printf("\n");
 423                 ++lines_printed;
 424                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 425                 if (pagin != 2)
 426                         scr_printf(" ");
 427         }
 428         if (pagin == 1 && !dest) {
 429                 color(BRIGHT_CYAN);
 430         }
 431
 432         /* View headers only */
 433         if (pagin == 2) {
 434                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 435                                 message->nhdr ? "yes" : "no",
 436                                 message->author, message->type,
 437                                 message->msgid);
 438                 if (strlen(message->subject)) {
 439                         pprintf("subj=%s\n", message->subject);
 440                 }
 441                 if (strlen(message->email)) {
 442                         pprintf("rfca=%s\n", message->email);
 443                 }
 444                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 445                                 message->hnod, message->room,
 446                                 message->node,
 447                                 asctime(localtime(&message->time)));
 448                 if (strlen(message->recipient)) {
 449                         pprintf("rcpt=%s\n", message->recipient);
 450                 }
 451                 if (message->attachments) {
 452                         struct parts *ptr;
 453
 454                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 455                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 456                                         ptr->name, ptr->filename, ptr->number,
 457                                         ptr->disposition, ptr->mimetype,
 458                                         ptr->length);
 459                         }
 460                 }
 461                 pprintf("\n");
 462                 stty_ctdl(0);
 463                 return (0);
 464         }
 465
 466         if (rc_display_message_numbers) {
 467                 if (dest) {
 468                         fprintf(dest, "[#%s] ", message->msgid);
 469                 } else {
 470                         color(DIM_WHITE);
 471                         scr_printf("[");
 472                         color(BRIGHT_WHITE);
 473                         scr_printf("#%s", message->msgid);
 474                         color(DIM_WHITE);
 475                         scr_printf("] ");
 476                 }
 477         }
 478         if (nhdr == 1 && !is_room_aide) {
 479                 if (dest) {
 480                         fprintf(dest, " ****");
 481                 } else {
 482                         scr_printf(" ****");
 483                 }
 484         } else {
 485                 fmt_date(now, sizeof now, message->time, 0);
 486                 if (dest) {
 487                         fprintf(dest, "%s from %s ", now, message->author);
 488                         if (strlen(message->email)) {
 489                                 fprintf(dest, "<%s> ", message->email);
 490                         }
 491                 } else {
 492                         color(BRIGHT_CYAN);
 493                         scr_printf("%s ", now);
 494                         color(DIM_WHITE);
 495                         scr_printf("from ");
 496                         color(BRIGHT_CYAN);
 497                         scr_printf("%s ", message->author);
 498                         if (strlen(message->email)) {
 499                                 color(DIM_WHITE);
 500                                 scr_printf("<");
 501                                 color(BRIGHT_BLUE);
 502                                 scr_printf("%s", message->email);
 503                                         color(DIM_WHITE);
 504                                 scr_printf("> ");
 505                         }
 506                 }
 507                 if (strlen(message->node)) {
 508                         if ((room_flags & QR_NETWORK)
 509                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 510                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 511                                 if (strlen(message->email) == 0) {
 512                                         if (dest) {
 513                                                 fprintf(dest, "@%s ", message->node);
 514                                         } else {
 515                                                 color(DIM_WHITE);
 516                                                 scr_printf("@");
 517                                                 color(BRIGHT_YELLOW);
 518                                                 scr_printf("%s ", message->node);
 519                                         }
 520                                 }
 521                         }
 522                 }
 523                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 524                     && (strlen(message->hnod)) && (!strlen(message->email))) {
 525                         if (dest) {
 526                                 fprintf(dest, "(%s) ", message->hnod);
 527                         } else {
 528                                 color(DIM_WHITE);
 529                                 scr_printf("(");
 530                                 color(BRIGHT_WHITE);
 531                                 scr_printf("%s", message->hnod);
 532                                 color(DIM_WHITE);
 533                                 scr_printf(") ");
 534                         }
 535                 }
 536                 if (strcasecmp(message->room, room_name) && (strlen(message->email) == 0)) {
 537                         if (dest) {
 538                                 fprintf(dest, "in %s> ", message->room);
 539                         } else {
 540                                 color(DIM_WHITE);
 541                                 scr_printf("in ");
 542                                 color(BRIGHT_MAGENTA);
 543                                 scr_printf("%s> ", message->room);
 544                         }
 545                 }
 546                 if (strlen(message->recipient)) {
 547                         if (dest) {
 548                                 fprintf(dest, "to %s ", message->recipient);
 549                         } else {
 550                                 color(DIM_WHITE);
 551                                 scr_printf("to ");
 552                                 color(BRIGHT_CYAN);
 553                                 scr_printf("%s ", message->recipient);
 554                         }
 555                 }
 556         }
 557
 558         if (dest) {
 559                 fprintf(dest, "\n");
 560         } else {
 561                 scr_printf("\n");
 562         }
 563
 564         /* Set the reply-to address to an Internet e-mail address if possible
 565          */
 566         if (message->email != NULL) if (strlen(message->email) > 0) {
 567                 if (strlen(message->author) > 0) {
 568                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 569                 }
 570                 else {
 571                         safestrncpy(reply_to, message->email, sizeof reply_to);
 572                 }
 573         }
 574
 575         /* But if we can't do that, set it to a Citadel address.
 576          */
 577         if (!strcmp(reply_to, NO_REPLY_TO)) {
 578                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 579                          message->author, message->node);
 580         }
 581
 582         if (!dest) {
 583                 ++lines_printed;
 584                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 585         }
 586
 587         if (message->subject != NULL) {
 588                 safestrncpy(reply_subject, message->subject,
 589                                                 sizeof reply_subject);
 590                 if (strlen(message->subject) > 0) {
 591                         if (dest) {
 592                                 fprintf(dest, "Subject: %s\n",
 593                                                         message->subject);
 594                         } else {
 595                                 color(DIM_WHITE);
 596                                 scr_printf("Subject: ");
 597                                 color(BRIGHT_CYAN);
 598                                 scr_printf("%s\n", message->subject);
 599                                 ++lines_printed;
 600                                 lines_printed = checkpagin(lines_printed,
 601                                                 pagin, screenheight);
 602                         }
 603                 }
 604         }
 605
 606         if (pagin == 1 && !dest) {
 607                 color(BRIGHT_WHITE);
 608         }
 609
 610         /******* end of header output, start of message text output *******/
 611
 612         /*
 613          * Convert HTML to plain text, formatting for the actual width
 614          * of the client screen.
 615          */
 616         if (!strcasecmp(message->content_type, "text/html")) {
 617                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 618                 if (converted_text != NULL) {
 619                         free(message->text);
 620                         message->text = converted_text;
 621                         format_type = 1;
 622                 }
 623         }
 624
 625         /* Text/plain is a different type */
 626         if (!strcasecmp(message->content_type, "text/plain")) {
 627                 format_type = 1;
 628         }
 629
 630         /* Extract URL's */
 631         num_urls = 0;   /* Start with a clean slate */
 632         searchptr = message->text;
 633         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 634                 searchptr = strstr(searchptr, "http://");
 635                 if (searchptr != NULL) {
 636                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 637                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 638                                 ch = urls[num_urls][i];
 639                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 640                                     ch == ' ' || ch == '\n') {
 641                                         urls[num_urls][i] = 0;
 642                                         break;
 643                                 }
 644                         }
 645                         num_urls++;
 646                         ++searchptr;
 647                 }
 648         }
 649
 650         /*
 651          * Here we go
 652          */
 653         if (format_type == 0) {
 654                 fr = fmout(screenwidth, NULL, message->text, dest,
 655                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 656         } else {
 657                 /* renderer for text/plain */
 658
 659                 lineptr = message->text;
 660
 661                 do {
 662                         nextline = strchr(lineptr, '\n');
 663                         if (nextline != NULL) {
 664                                 *nextline = 0;
 665                                 ++nextline;
 666                                 if (*nextline == 0) nextline = NULL;
 667                         }
 668
 669                         if (sigcaught == 0) {
 670                                 linelen = strlen(lineptr);
 671                                 if (lineptr[linelen-1] == '\r') {
 672                                         lineptr[--linelen] = 0;
 673                                 }
 674                                 if (dest) {
 675                                         fprintf(dest, "%s\n", lineptr);
 676                                 } else {
 677                                         scr_printf("%s\n", lineptr);
 678                                         lines_printed = lines_printed + 1 +
 679                                             (linelen / screenwidth);
 680                                         lines_printed =
 681                                             checkpagin(lines_printed, pagin,
 682                                                        screenheight);
 683                                 }
 684                         }
 685                         if (lineptr[0] == 0) final_line_is_blank = 1;
 686                         else final_line_is_blank = 0;
 687                         lineptr = nextline;
 688                 } while (nextline);
 689                 fr = sigcaught;
 690         }
 691         if (!final_line_is_blank) {
 692                 if (dest) {
 693                         fprintf(dest, "\n");
 694                 }
 695                 else {
 696                         scr_printf("\n");
 697                         ++lines_printed;
 698                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 699                 }
 700         }
 701
 702         /* Enumerate any attachments */
 703         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 704                 struct parts *ptr;
 705
 706                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 707                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 708                            || (!strcasecmp(ptr->disposition, "inline"))) {
 709                                 color(DIM_WHITE);
 710                                 pprintf("Part ");
 711                                 color(BRIGHT_MAGENTA);
 712                                 pprintf("%s", ptr->number);
 713                                 color(DIM_WHITE);
 714                                 pprintf(": ");
 715                                 color(BRIGHT_CYAN);
 716                                 pprintf("%s", ptr->filename);
 717                                 color(DIM_WHITE);
 718                                 pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 719                                 if (!strncmp(ptr->mimetype, "image/", 6))
 720                                         has_images++;
 721                         }
 722                 }
 723         }
 724
 725         /* Save the attachments info for later */
 726         last_message_parts = message->attachments;
 727
 728         /* Now we're done */
 729         free(message->text);
 730         free(message);
 731
 732         if (pagin == 1 && !dest)
 733                 color(DIM_WHITE);
 734         stty_ctdl(0);
 735         return (fr);
 736 }
 737
 738 /*
 739  * replace string function for the built-in editor
 740  */
 741 void replace_string(char *filename, long int startpos)
 742 {
 743         char buf[512];
 744         char srch_str[128];
 745         char rplc_str[128];
 746         FILE *fp;
 747         int a;
 748         long rpos, wpos;
 749         char *ptr;
 750         int substitutions = 0;
 751         long msglen = 0L;
 752
 753         scr_printf("Enter text to be replaced:\n: ");
 754         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 755         if (strlen(srch_str) == 0)
 756                 return;
 757
 758         scr_printf("Enter text to replace it with:\n: ");
 759         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 760
 761         fp = fopen(filename, "r+");
 762         if (fp == NULL)
 763                 return;
 764
 765         wpos = startpos;
 766         fseek(fp, startpos, 0);
 767         strcpy(buf, "");
 768         while (a = getc(fp), a > 0) {
 769                 ++msglen;
 770                 buf[strlen(buf) + 1] = 0;
 771                 buf[strlen(buf)] = a;
 772                 if (strlen(buf) >= strlen(srch_str)) {
 773                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 774                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 775                                 strcpy(ptr, rplc_str);
 776                                 ++substitutions;
 777                         }
 778                 }
 779                 if (strlen(buf) > 384) {
 780                         rpos = ftell(fp);
 781                         fseek(fp, wpos, 0);
 782                         fwrite((char *) buf, 128, 1, fp);
 783                         strcpy(buf, &buf[128]);
 784                         wpos = ftell(fp);
 785                         fseek(fp, rpos, 0);
 786                 }
 787         }
 788         fseek(fp, wpos, 0);
 789         if (strlen(buf) > 0)
 790                 fwrite((char *) buf, strlen(buf), 1, fp);
 791         wpos = ftell(fp);
 792         fclose(fp);
 793         truncate(filename, wpos);
 794         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 795 }
 796
 797 /*
 798  * Function to begin composing a new message
 799  */
 800 int client_make_message(CtdlIPC *ipc,
 801                 char *filename,         /* temporary file name */
 802                 char *recipient,        /* NULL if it's not mail */
 803                 int is_anonymous,
 804                 int format_type,
 805                 int mode,
 806                 char *subject)          /* buffer to store subject line */
 807 {
 808         FILE *fp;
 809         int a, b, e_ex_code;
 810         long beg;
 811         char datestr[SIZ];
 812         char header[SIZ];
 813         char *editor_path = NULL;
 814         int cksum = 0;
 815
 816         if (mode >= 2)
 817         {
 818                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 819                         editor_path = editor_paths[mode-2];
 820                 } else if (strlen(editor_paths[0]) > 0) {
 821                         editor_path = editor_paths[0];
 822                 } else {
 823                         err_printf("*** No editor available, "
 824                                 "using built-in editor\n");
 825                         mode = 0;
 826                 }
 827         }
 828
 829         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 830         header[0] = 0;
 831
 832         if (room_flags & QR_ANONONLY && !recipient) {
 833                 snprintf(header, sizeof header, " ****");
 834         }
 835         else {
 836                 snprintf(header, sizeof header,
 837                         " %s from %s",
 838                         datestr,
 839                         (is_anonymous ? "[anonymous]" : fullname)
 840                         );
 841                 if (strlen(recipient) > 0) {
 842                         size_t tmp = strlen(header);
 843                         snprintf(&header[tmp], sizeof header - tmp,
 844                                 " to %s", recipient);
 845                 }
 846         }
 847         scr_printf("%s\n", header);
 848         if (subject != NULL) if (strlen(subject) > 0) {
 849                 scr_printf("Subject: %s\n", subject);
 850         }
 851
 852         beg = 0L;
 853
 854         if (mode == 1) {
 855                 scr_printf("(Press ctrl-d when finished)\n");
 856         }
 857
 858         if (mode == 0) {
 859                 fp = fopen(filename, "r");
 860                 if (fp != NULL) {
 861                         fmout(screenwidth, fp, NULL, NULL, 0,
 862                                 screenheight, 0, 0);
 863                         beg = ftell(fp);
 864                         fclose(fp);
 865                 } else {
 866                         fp = fopen(filename, "w");
 867                         if (fp == NULL) {
 868                                 err_printf("*** Error opening temp file!\n"
 869                                         "    %s: %s\n",
 870                                         filename, strerror(errno));
 871                         return(1);
 872                         }
 873                         fclose(fp);
 874                 }
 875         }
 876
 877 ME1:    switch (mode) {
 878
 879         case 0:
 880                 fp = fopen(filename, "r+");
 881                 if (fp == NULL) {
 882                         err_printf("*** Error opening temp file!\n"
 883                                 "    %s: %s\n",
 884                                 filename, strerror(errno));
 885                         return(1);
 886                 }
 887                 citedit(ipc, fp);
 888                 fclose(fp);
 889                 goto MECR;
 890
 891         case 1:
 892                 fp = fopen(filename, "a");
 893                 if (fp == NULL) {
 894                         err_printf("*** Error opening temp file!\n"
 895                                 "    %s: %s\n",
 896                                 filename, strerror(errno));
 897                         return(1);
 898                 }
 899                 do {
 900                         a = inkey();
 901                         if (a == 255)
 902                                 a = 32;
 903                         if (a == 13)
 904                                 a = 10;
 905                         if (a != 4) {
 906                                 putc(a, fp);
 907                                 scr_putc(a);
 908                         }
 909                         if (a == 10)
 910                                 scr_putc(10);
 911                 } while (a != 4);
 912                 fclose(fp);
 913                 break;
 914
 915         case 2:
 916         default:        /* allow 2+ modes */
 917                 e_ex_code = 1;  /* start with a failed exit code */
 918                 screen_reset();
 919                 stty_ctdl(SB_RESTORE);
 920                 editor_pid = fork();
 921                 cksum = file_checksum(filename);
 922                 if (editor_pid == 0) {
 923                         char tmp[SIZ];
 924
 925                         chmod(filename, 0600);
 926                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 927                         putenv(tmp);
 928                         execlp(editor_path, editor_path, filename, NULL);
 929                         exit(1);
 930                 }
 931                 if (editor_pid > 0)
 932                         do {
 933                                 e_ex_code = 0;
 934                                 b = ka_wait(&e_ex_code);
 935                         } while ((b != editor_pid) && (b >= 0));
 936                 editor_pid = (-1);
 937                 stty_ctdl(0);
 938                 screen_set();
 939                 break;
 940         }
 941
 942 MECR:   if (mode >= 2) {
 943                 if (file_checksum(filename) == cksum) {
 944                         err_printf("*** Aborted message.\n");
 945                         e_ex_code = 1;
 946                 }
 947                 if (e_ex_code == 0) {
 948                         goto MEFIN;
 949                 }
 950                 goto MEABT2;
 951         }
 952
 953         b = keymenu("Entry command (? for options)",
 954                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 955                     "add s<U>bject|"
 956                     "<R>eplace string|<H>old message");
 957
 958         if (b == 'a') goto MEABT;
 959         if (b == 'c') goto ME1;
 960         if (b == 's') goto MEFIN;
 961         if (b == 'p') {
 962                 scr_printf(" %s from %s", datestr, fullname);
 963                 if (strlen(recipient) > 0) {
 964                         scr_printf(" to %s", recipient);
 965                 }
 966                 scr_printf("\n");
 967                 if (subject != NULL) if (strlen(subject) > 0) {
 968                         scr_printf("Subject: %s\n", subject);
 969                 }
 970                 fp = fopen(filename, "r");
 971                 if (fp != NULL) {
 972                         fmout(screenwidth, fp, NULL, NULL,
 973                               ((userflags & US_PAGINATOR) ? 1 : 0),
 974                               screenheight, 0, 0);
 975                         beg = ftell(fp);
 976                         fclose(fp);
 977                 }
 978                 goto MECR;
 979         }
 980         if (b == 'r') {
 981                 replace_string(filename, 0L);
 982                 goto MECR;
 983         }
 984         if (b == 'h') {
 985                 return (2);
 986         }
 987         if (b == 'u') {
 988                 if (subject != NULL) {
 989                         newprompt("Subject: ", subject, 70);
 990                 }
 991                 goto MECR;
 992         }
 993
 994 MEFIN:  return (0);
 995
 996 MEABT:  scr_printf("Are you sure? ");
 997         if (yesno() == 0) {
 998                 goto ME1;
 999         }
1000 MEABT2: unlink(filename);
1001         return (2);
1002 }
1003
1004
1005 #if 0
1006 /*
1007  * Transmit message text to the server.
1008  *
1009  * This loop also implements a "tick" counter that displays the progress, if
1010  * we're sending something that will take a long time to transmit.
1011  */
1012 void transmit_message(CtdlIPC *ipc, FILE *fp)
1013 {
1014         char buf[SIZ];
1015         int ch, a;
1016         long msglen;
1017         time_t lasttick;
1018
1019         fseek(fp, 0L, SEEK_END);
1020         msglen = ftell(fp);
1021         rewind(fp);
1022         lasttick = time(NULL);
1023         strcpy(buf, "");
1024         while (ch = getc(fp), (ch >= 0)) {
1025                 if (ch == 10) {
1026                         if (!strcmp(buf, "000"))
1027                                 strcpy(buf, ">000");
1028                         CtdlIPC_putline(ipc, buf);
1029                         strcpy(buf, "");
1030                 } else {
1031                         a = strlen(buf);
1032                         buf[a + 1] = 0;
1033                         buf[a] = ch;
1034                         if ((ch == 32) && (strlen(buf) > 200)) {
1035                                 buf[a] = 0;
1036                                 if (!strcmp(buf, "000"))
1037                                         strcpy(buf, ">000");
1038                                 CtdlIPC_putline(ipc, buf);
1039                                 strcpy(buf, "");
1040                         }
1041                         if (strlen(buf) > 250) {
1042                                 if (!strcmp(buf, "000"))
1043                                         strcpy(buf, ">000");
1044                                 CtdlIPC_putline(ipc, buf);
1045                                 strcpy(buf, "");
1046                         }
1047                 }
1048
1049                 if ((time(NULL) - lasttick) > 2L) {
1050                         scr_printf(" %3ld%% completed\r",
1051                                ((ftell(fp) * 100L) / msglen));
1052                         scr_flush();
1053                         lasttick = time(NULL);
1054                 }
1055
1056         }
1057         CtdlIPC_putline(ipc, buf);
1058         scr_printf("                \r");
1059         scr_flush();
1060 }
1061 #endif
1062
1063
1064 /*
1065  * Make sure there's room in msg_arr[] for at least one more.
1066  */
1067 void check_msg_arr_size(void) {
1068         if ((num_msgs + 1) > msg_arr_size) {
1069                 msg_arr_size += 512;
1070                 msg_arr = realloc(msg_arr,
1071                         ((sizeof(long)) * msg_arr_size) );
1072         }
1073 }
1074
1075
1076 /*
1077  * break_big_lines()  -  break up lines that are >1024 characters
1078  *                       otherwise the server will truncate
1079  */
1080 void break_big_lines(char *msg) {
1081         char *ptr;
1082         char *break_here;
1083
1084         if (msg == NULL) {
1085                 return;
1086         }
1087
1088         ptr = msg;
1089         while (strlen(ptr) > 1000) {
1090                 break_here = strchr(&ptr[900], ' ');
1091                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1092                         break_here = &ptr[999];
1093                 }
1094                 *break_here = '\n';
1095                 ptr = break_here++;
1096         }
1097 }
1098
1099
1100 /*
1101  * entmsg()  -  edit and create a message
1102  *              returns 0 if message was saved
1103  */
1104 int entmsg(CtdlIPC *ipc,
1105                 int is_reply,   /* nonzero if this was a <R>eply command */
1106                 int c,          /* mode */
1107                 int masquerade  /* prompt for a non-default display name? */
1108 ) {
1109         char buf[SIZ];
1110         int a, b;
1111         int need_recp = 0;
1112         int mode;
1113         long highmsg = 0L;
1114         FILE *fp;
1115         char subject[SIZ];
1116         struct ctdlipcmessage message;
1117         unsigned long *msgarr = NULL;
1118         int r;                  /* IPC response code */
1119
1120         if (c > 0)
1121                 mode = 1;
1122         else
1123                 mode = 0;
1124
1125         strcpy(subject, "");
1126
1127         /*
1128          * First, check to see if we have permission to enter a message in
1129          * this room.  The server will return an error code if we can't.
1130          */
1131         strcpy(message.recipient, "");
1132         strcpy(message.author, "");
1133         strcpy(message.subject, "");
1134         message.text = "";              /* point to "", changes later */
1135         message.anonymous = 0;
1136         message.type = mode;
1137
1138         if (masquerade) {
1139                 newprompt("Display name for this message: ", message.author, 40);
1140         }
1141
1142         r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1143
1144         if (r / 100 != 2 && r / 10 != 57) {
1145                 scr_printf("%s\n", buf);
1146                 return (1);
1147         }
1148
1149         /* Error code 570 is special.  It means that we CAN enter a message
1150          * in this room, but a recipient needs to be specified.
1151          */
1152         need_recp = 0;
1153         if (r / 10 == 57) {
1154                 need_recp = 1;
1155         }
1156
1157         /* If the user is a dumbass, tell them how to type. */
1158         if ((userflags & US_EXPERT) == 0) {
1159                 formout(ipc, "entermsg");
1160         }
1161
1162         /* Handle the selection of a recipient, if necessary. */
1163         strcpy(buf, "");
1164         if (need_recp == 1) {
1165                 if (axlevel >= 2) {
1166                         if (is_reply) {
1167                                 strcpy(buf, reply_to);
1168                         } else {
1169                                 scr_printf("Enter recipient: ");
1170                                 ctdl_getline(buf, (SIZ-100) );
1171                                 if (strlen(buf) == 0)
1172                                         return (1);
1173                         }
1174                 } else
1175                         strcpy(buf, "sysop");
1176         }
1177         strcpy(message.recipient, buf);
1178
1179         if (is_reply) {
1180                 if (strlen(reply_subject) > 0) {
1181                         if (!strncasecmp(reply_subject,
1182                            "Re: ", 3)) {
1183                                 strcpy(message.subject, reply_subject);
1184                         }
1185                         else {
1186                                 snprintf(message.subject,
1187                                         sizeof message.subject,
1188                                         "Re: %s",
1189                                         reply_subject);
1190                         }
1191                 }
1192         }
1193
1194         if (room_flags & QR_ANONOPT) {
1195                 scr_printf("Anonymous (Y/N)? ");
1196                 if (yesno() == 1)
1197                         message.anonymous = 1;
1198         }
1199
1200         /* If it's mail, we've got to check the validity of the recipient... */
1201         if (strlen(message.recipient) > 0) {
1202                 r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1203                 if (r / 100 != 2) {
1204                         scr_printf("%s\n", buf);
1205                         return (1);
1206                 }
1207         }
1208
1209         /* Learn the number of the newest message in in the room, so we can
1210          * tell upon saving whether someone else has posted too.
1211          */
1212         num_msgs = 0;
1213         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1214         if (r / 100 != 1) {
1215                 scr_printf("%s\n", buf);
1216         } else {
1217                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1218                         ;
1219         }
1220
1221         /* Now compose the message... */
1222         if (client_make_message(ipc, temp, message.recipient,
1223            message.anonymous, 0, c, message.subject) != 0) {
1224                 return (2);
1225         }
1226
1227         /* Reopen the temp file that was created, so we can send it */
1228         fp = fopen(temp, "r");
1229
1230         if (!fp || !(message.text = load_message_from_file(fp))) {
1231                 err_printf("*** Internal error while trying to save message!\n"
1232                         "%s: %s\n",
1233                         temp, strerror(errno));
1234                 unlink(temp);
1235                 return(errno);
1236         }
1237
1238         if (fp) fclose(fp);
1239
1240         /* Break lines that are >1024 characters, otherwise the server
1241          * will truncate them.
1242          */
1243         break_big_lines(message.text);
1244
1245         /* Transmit message to the server */
1246         r = CtdlIPCPostMessage(ipc, 1, &message, buf);
1247         if (r / 100 != 4) {
1248                 scr_printf("%s\n", buf);
1249                 return (1);
1250         }
1251
1252         /* Yes, unlink it now, so it doesn't stick around if we crash */
1253         unlink(temp);
1254
1255         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1256
1257         if (msgarr) free(msgarr);
1258         msgarr = NULL;
1259         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1260         if (r / 100 != 1) {
1261                 scr_printf("%s\n", buf);
1262         } else {
1263                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1264                         ;
1265         }
1266
1267         /* get new highest message number in room to set lrp for goto... */
1268         maxmsgnum = msgarr[num_msgs - 1];
1269
1270         /* now see if anyone else has posted in here */
1271         b = (-1);
1272         for (a = 0; a < num_msgs; ++a) {
1273                 if (msgarr[a] > highmsg) {
1274                         ++b;
1275                 }
1276         }
1277         if (msgarr) free(msgarr);
1278         msgarr = NULL;
1279
1280         /* In the Mail> room, this algorithm always counts one message
1281          * higher than in public rooms, so we decrement it by one.
1282          */
1283         if (need_recp) {
1284                 --b;
1285         }
1286
1287         if (b == 1) {
1288                 scr_printf("*** 1 additional message has been entered "
1289                         "in this room by another user.\n");
1290         }
1291         else if (b > 1) {
1292                 scr_printf("*** %d additional messages have been entered "
1293                         "in this room by other users.\n", b);
1294         }
1295     free(message.text);
1296
1297         return(0);
1298 }
1299
1300 /*
1301  * Do editing on a quoted file
1302  */
1303 void process_quote(void)
1304 {
1305         FILE *qfile, *tfile;
1306         char buf[128];
1307         int line, qstart, qend;
1308
1309         /* Unlink the second temp file as soon as it's opened, so it'll get
1310          * deleted even if the program dies
1311          */
1312         qfile = fopen(temp2, "r");
1313         unlink(temp2);
1314
1315         /* Display the quotable text with line numbers added */
1316         line = 0;
1317         fgets(buf, 128, qfile);
1318         while (fgets(buf, 128, qfile) != NULL) {
1319                 scr_printf("%2d %s", ++line, buf);
1320         }
1321         scr_printf("Begin quoting at [ 1] : ");
1322         ctdl_getline(buf, 3);
1323         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1324         scr_printf("  End quoting at [%d] : ", line);
1325         ctdl_getline(buf, 3);
1326         qend = (buf[0] == 0) ? (line) : atoi(buf);
1327         rewind(qfile);
1328         line = 0;
1329         fgets(buf, 128, qfile);
1330         tfile = fopen(temp, "w");
1331         while (fgets(buf, 128, qfile) != NULL) {
1332                 if ((++line >= qstart) && (line <= qend))
1333                         fprintf(tfile, " >%s", buf);
1334         }
1335         fprintf(tfile, " \n");
1336         fclose(qfile);
1337         fclose(tfile);
1338         chmod(temp, 0666);
1339 }
1340
1341
1342
1343 /*
1344  * List the URL's which were embedded in the previous message
1345  */
1346 void list_urls(CtdlIPC *ipc)
1347 {
1348         int i;
1349         char cmd[SIZ];
1350
1351         if (num_urls == 0) {
1352                 scr_printf("There were no URL's in the previous message.\n\n");
1353                 return;
1354         }
1355
1356         for (i = 0; i < num_urls; ++i) {
1357                 scr_printf("%3d %s\n", i + 1, urls[i]);
1358         }
1359
1360         if ((i = num_urls) != 1)
1361                 i = intprompt("Display which one", 1, 1, num_urls);
1362
1363         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1364         system(cmd);
1365         scr_printf("\n");
1366 }
1367
1368
1369 /*
1370  * Run image viewer in background
1371  */
1372 int do_image_view(const char *filename)
1373 {
1374         char cmd[SIZ];
1375         pid_t childpid;
1376
1377         snprintf(cmd, sizeof cmd, imagecmd, filename);
1378         childpid = fork();
1379         if (childpid < 0) {
1380                 unlink(filename);
1381                 return childpid;
1382         }
1383
1384         if (childpid == 0) {
1385                 int retcode;
1386                 pid_t grandchildpid;
1387
1388                 grandchildpid = fork();
1389                 if (grandchildpid < 0) {
1390                         return grandchildpid;
1391                 }
1392
1393                 if (grandchildpid == 0) {
1394                         int nullfd;
1395                         int outfd = -1;
1396                         int errfd = -1;
1397
1398                         nullfd = open("/dev/null", O_WRONLY);
1399                         if (nullfd > -1) {
1400                                 dup2(1, outfd);
1401                                 dup2(2, errfd);
1402                                 dup2(nullfd, 1);
1403                                 dup2(nullfd, 2);
1404                         }
1405                         retcode = system(cmd);
1406                         if (nullfd > -1) {
1407                                 dup2(outfd, 1);
1408                                 dup2(errfd, 2);
1409                                 close(nullfd);
1410                         }
1411                         unlink(filename);
1412                         exit(retcode);
1413                 }
1414
1415                 if (grandchildpid > 0) {
1416                         exit(0);
1417                 }
1418         }
1419
1420         if (childpid > 0) {
1421                 int retcode;
1422
1423                 waitpid(childpid, &retcode, 0);
1424                 return retcode;
1425         }
1426
1427         return -1;
1428 }
1429
1430
1431 /*
1432  * View an image attached to a message
1433  */
1434 void image_view(CtdlIPC *ipc, unsigned long msg)
1435 {
1436         struct parts *ptr = last_message_parts;
1437         char part[SIZ];
1438         int found = 0;
1439
1440         /* Run through available parts */
1441         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1442                 if ((!strcasecmp(ptr->disposition, "attachment")
1443                    || !strcasecmp(ptr->disposition, "inline"))
1444                    && !strncmp(ptr->mimetype, "image/", 6)) {
1445                         found++;
1446                         if (found == 1) {
1447                                 strcpy(part, ptr->number);
1448                         }
1449                 }
1450         }
1451
1452         while (found > 0) {
1453                 if (found > 1)
1454                         strprompt("View which part (0 when done)", part, SIZ-1);
1455                 found = -found;
1456                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1457                         if ((!strcasecmp(ptr->disposition, "attachment")
1458                            || !strcasecmp(ptr->disposition, "inline"))
1459                            && !strncmp(ptr->mimetype, "image/", 6)
1460                            && !strcasecmp(ptr->number, part)) {
1461                                 char tmp[PATH_MAX];
1462                                 char buf[SIZ];
1463                                 void *file = NULL; /* The downloaded file */
1464                                 int r;
1465
1466                                 /* view image */
1467                                 found = -found;
1468                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1469                                 if (r / 100 != 2) {
1470                                         scr_printf("%s\n", buf);
1471                                 } else {
1472                                         size_t len;
1473
1474                                         len = (size_t)extract_long(buf, 0);
1475                                         progress(ipc, len, len);
1476                                         scr_flush();
1477                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1478                                         strcat(tmp, ptr->filename);
1479                                         save_buffer(file, len, tmp);
1480                                         free(file);
1481                                         do_image_view(tmp);
1482                                 }
1483                                 break;
1484                         }
1485                 }
1486                 if (found == 1)
1487                         break;
1488         }
1489 }
1490
1491
1492 /*
1493  * Read the messages in the current room
1494  */
1495 void readmsgs(CtdlIPC *ipc,
1496         enum MessageList c,             /* see listing in citadel_ipc.h */
1497         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1498         int q           /* Number of msgs to read (if c==3) */
1499 ) {
1500         int a, b, e, f, g, start;
1501         int savedpos;
1502         int hold_sw = 0;
1503         char arcflag = 0;
1504         char quotflag = 0;
1505         int hold_color = 0;
1506         char prtfile[PATH_MAX];
1507         char pagin;
1508         char cmd[SIZ];
1509         char targ[ROOMNAMELEN];
1510         char filename[PATH_MAX];
1511         char save_to[PATH_MAX];
1512         void *attachment = NULL;        /* Downloaded attachment */
1513         FILE *dest = NULL;      /* Alternate destination other than screen */
1514         int r;                          /* IPC response code */
1515
1516         if (c < 0)
1517                 b = (num_msgs - 1);
1518         else
1519                 b = 0;
1520
1521         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1522
1523         if (msg_arr) {
1524                 free(msg_arr);
1525                 msg_arr = NULL;
1526         }
1527         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1528         if (r / 100 != 1) {
1529                 scr_printf("%s\n", cmd);
1530         } else {
1531                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1532                         ;
1533         }
1534
1535         if (num_msgs == 0) {    /* TODO look at this later */
1536                 if (c == LastMessages) return;
1537                 scr_printf("*** There are no ");
1538                 if (c == NewMessages) scr_printf("new ");
1539                 if (c == OldMessages) scr_printf("old ");
1540                 scr_printf("messages in this room.\n");
1541                 return;
1542         }
1543
1544         lines_printed = 0;
1545
1546         /* this loop cycles through each message... */
1547         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1548         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1549                 while (msg_arr[a] == 0L) {
1550                         a = a + rdir;
1551                         if ((a == num_msgs) || (a == (-1)))
1552                                 return;
1553                 }
1554
1555 RAGAIN:         pagin = ((arcflag == 0)
1556                          && (quotflag == 0)
1557                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1558
1559                 /* If we're doing a quote, set the screenwidth to 72 */
1560                 if (quotflag) {
1561                         hold_sw = screenwidth;
1562                         screenwidth = 72;
1563                 }
1564
1565                 /* If printing or archiving, set the screenwidth to 80 */
1566                 if (arcflag) {
1567                         hold_sw = screenwidth;
1568                         screenwidth = 80;
1569                 }
1570
1571                 /* clear parts list */
1572                 free_parts(last_message_parts);
1573                 last_message_parts = NULL;
1574
1575                 /* now read the message... */
1576                 e = read_message(ipc, msg_arr[a], pagin, dest);
1577
1578                 /* ...and set the screenwidth back if we have to */
1579                 if ((quotflag) || (arcflag)) {
1580                         screenwidth = hold_sw;
1581                 }
1582 RMSGREAD:       scr_flush();
1583                 highest_msg_read = msg_arr[a];
1584                 if (quotflag) {
1585                         fclose(dest);
1586                         dest = NULL;
1587                         quotflag = 0;
1588                         enable_color = hold_color;
1589                         process_quote();
1590                 }
1591                 if (arcflag) {
1592                         fclose(dest);
1593                         dest = NULL;
1594                         arcflag = 0;
1595                         enable_color = hold_color;
1596                         f = fork();
1597                         if (f == 0) {
1598                                 freopen(prtfile, "r", stdin);
1599                                 screen_reset();
1600                                 stty_ctdl(SB_RESTORE);
1601                                 ka_system(printcmd);
1602                                 stty_ctdl(SB_NO_INTR);
1603                                 screen_set();
1604                                 unlink(prtfile);
1605                                 exit(0);
1606                         }
1607                         if (f > 0)
1608                                 do {
1609                                         g = wait(NULL);
1610                                 } while ((g != f) && (g >= 0));
1611                         scr_printf("Message printed.\n");
1612                 }
1613                 if (rc_alt_semantics && c == 1) {
1614                         char buf[SIZ];
1615
1616                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1617                 }
1618                 if (e == 3)
1619                         return;
1620                 if (((userflags & US_NOPROMPT) || (e == 2))
1621                     && (((room_flags & QR_MAILBOX) == 0)
1622                         || (rc_force_mail_prompts == 0))) {
1623                         e = 'n';
1624                 } else {
1625                         color(DIM_WHITE);
1626                         scr_printf("(");
1627                         color(BRIGHT_WHITE);
1628                         scr_printf("%d", num_msgs - a - 1);
1629                         color(DIM_WHITE);
1630                         scr_printf(") ");
1631
1632                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1633                         if (rc_url_cmd[0] && num_urls)
1634                                 keyopt("<U>RLview ");
1635                         if (has_images > 0 && strlen(imagecmd) > 0)
1636                                 keyopt("<I>mages ");
1637                         keyopt("<?>help -> ");
1638
1639                         do {
1640                                 lines_printed = 2;
1641                                 e = (inkey() & 127);
1642                                 e = tolower(e);
1643 /* return key same as <N> */ if (e == 10)
1644                                         e = 'n';
1645 /* space key same as <N> */ if (e == 32)
1646                                         e = 'n';
1647 /* del/move for aides only */
1648                                     if ((!is_room_aide)
1649                                         && ((room_flags & QR_MAILBOX) ==
1650                                             0)) {
1651                                         if ((e == 'd') || (e == 'm'))
1652                                                 e = 0;
1653                                 }
1654 /* print only if available */
1655                                 if ((e == 'p') && (strlen(printcmd) == 0))
1656                                         e = 0;
1657 /* can't file if not allowed */
1658                                     if ((e == 'f')
1659                                         && (rc_allow_attachments == 0))
1660                                         e = 0;
1661 /* link only if browser avail*/
1662                                     if ((e == 'u')
1663                                         && (strlen(rc_url_cmd) == 0))
1664                                         e = 0;
1665                                 if ((e == 'i')
1666                                         && (!strlen(imagecmd) || !has_images))
1667                                         e = 0;
1668                         } while ((e != 'a') && (e != 'n') && (e != 's')
1669                                  && (e != 'd') && (e != 'm') && (e != 'p')
1670                                  && (e != 'q') && (e != 'b') && (e != 'h')
1671                                  && (e != 'r') && (e != 'f') && (e != '?')
1672                                  && (e != 'u') && (e != 'c') && (e != 'y')
1673                                  && (e != 'i'));
1674                         switch (e) {
1675                         case 's':
1676                                 scr_printf("Stop");
1677                                 break;
1678                         case 'a':
1679                                 scr_printf("Again");
1680                                 break;
1681                         case 'd':
1682                                 scr_printf("Delete");
1683                                 break;
1684                         case 'm':
1685                                 scr_printf("Move");
1686                                 break;
1687                         case 'c':
1688                                 scr_printf("Copy");
1689                                 break;
1690                         case 'n':
1691                                 scr_printf("Next");
1692                                 break;
1693                         case 'p':
1694                                 scr_printf("Print");
1695                                 break;
1696                         case 'q':
1697                                 scr_printf("Quote");
1698                                 break;
1699                         case 'b':
1700                                 scr_printf("Back");
1701                                 break;
1702                         case 'h':
1703                                 scr_printf("Header");
1704                                 break;
1705                         case 'r':
1706                                 scr_printf("Reply");
1707                                 break;
1708                         case 'f':
1709                                 scr_printf("File");
1710                                 break;
1711                         case 'u':
1712                                 scr_printf("URL's");
1713                                 break;
1714                         case 'y':
1715                                 scr_printf("mY next");
1716                                 break;
1717                         case 'i':
1718                                 break;
1719                         case '?':
1720                                 scr_printf("? <help>");
1721                                 break;
1722                         }
1723                         if (userflags & US_DISAPPEAR || e == 'i')
1724                                 scr_printf("\r%79s\r", "");
1725                         else
1726                                 scr_printf("\n");
1727                         scr_flush();
1728                 }
1729                 switch (e) {
1730                 case '?':
1731                         scr_printf("Options available here:\n"
1732                                 " ?  Help (prints this message)\n"
1733                                 " S  Stop reading immediately\n"
1734                                 " A  Again (repeats last message)\n"
1735                                 " N  Next (continue with next message)\n"
1736                                 " Y  My Next (continue with next message you authored)\n"
1737                                 " B  Back (go back to previous message)\n");
1738                         if ((is_room_aide)
1739                             || (room_flags & QR_MAILBOX)) {
1740                                 scr_printf(" D  Delete this message\n"
1741                                         " M  Move message to another room\n");
1742                         }
1743                         scr_printf(" C  Copy message to another room\n");
1744                         if (strlen(printcmd) > 0)
1745                                 scr_printf(" P  Print this message\n");
1746                         scr_printf(
1747                                 " Q  Quote portions of this message for your next post\n"
1748                                 " H  Headers (display message headers only)\n");
1749                         if (is_mail)
1750                                 scr_printf(" R  Reply to this message\n");
1751                         if (rc_allow_attachments)
1752                                 scr_printf
1753                                     (" F  (save attachments to a file)\n");
1754                         if (strlen(rc_url_cmd) > 0)
1755                                 scr_printf(" U  (list URL's for display)\n");
1756                         if (strlen(imagecmd) > 0 && has_images > 0)
1757                                 scr_printf(" I  Image viewer\n");
1758                         scr_printf("\n");
1759                         goto RMSGREAD;
1760                 case 'p':
1761                         scr_flush();
1762                         dest = fopen(prtfile, "w");
1763                         arcflag = 1;
1764                         hold_color = enable_color;
1765                         enable_color = 0;
1766                         goto RAGAIN;
1767                 case 'q':
1768                         scr_flush();
1769                         dest = fopen(temp2, "w");
1770                         quotflag = 1;
1771                         hold_color = enable_color;
1772                         enable_color = 0;
1773                         goto RAGAIN;
1774                 case 's':
1775                         return;
1776                 case 'a':
1777                         goto RAGAIN;
1778                 case 'b':
1779                         a = a - (rdir * 2);
1780                         break;
1781                 case 'm':
1782                 case 'c':
1783                         newprompt("Enter target room: ",
1784                                   targ, ROOMNAMELEN - 1);
1785                         if (strlen(targ) > 0) {
1786                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1787                                                        msg_arr[a], targ, cmd);
1788                                 scr_printf("%s\n", cmd);
1789                                 if (r / 100 == 2)
1790                                         msg_arr[a] = 0L;
1791                         } else {
1792                                 goto RMSGREAD;
1793                         }
1794                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1795                                 goto RMSGREAD;  /* the logic here sucks */
1796                         break;
1797                 case 'f':
1798                         newprompt("Which section? ", filename,
1799                                   ((sizeof filename) - 1));
1800                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1801                                         filename, &attachment, progress, cmd);
1802                         if (r / 100 != 2) {
1803                                 scr_printf("%s\n", cmd);
1804                         } else {
1805                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1806                                 /*
1807                                  * Part 1 won't have a filename; use the
1808                                  * subject of the message instead. IO
1809                                  */
1810                                 if (!strlen(filename))
1811                                         strcpy(filename, reply_subject);
1812                                 destination_directory(save_to, filename);
1813                                 save_buffer(attachment,
1814                                                 extract_unsigned_long(cmd, 0),
1815                                                 save_to);
1816                         }
1817                         if (attachment) {
1818                                 free(attachment);
1819                                 attachment = NULL;
1820                         }
1821                         goto RMSGREAD;
1822                 case 'd':
1823                         scr_printf("*** Delete this message? ");
1824                         if (yesno() == 1) {
1825                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1826                                 scr_printf("%s\n", cmd);
1827                                 if (r / 100 == 2)
1828                                         msg_arr[a] = 0L;
1829                         } else {
1830                                 goto RMSGREAD;
1831                         }
1832                         break;
1833                 case 'h':
1834                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1835                         goto RMSGREAD;
1836                 case 'r':
1837                         savedpos = num_msgs;
1838                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1839                         num_msgs = savedpos;
1840                         goto RMSGREAD;
1841                 case 'u':
1842                         list_urls(ipc);
1843                         goto RMSGREAD;
1844                 case 'i':
1845                         image_view(ipc, msg_arr[a]);
1846                         goto RMSGREAD;
1847             case 'y':
1848           { /* hack hack hack */
1849             /* find the next message by me, stay here if we find nothing */
1850             int finda;
1851             int lasta = a;
1852             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1853               {
1854                 /* This is repetitively dumb, but that's what computers are for.
1855                    We have to load up messages until we find one by us */
1856                 char buf[SIZ];
1857                 int founda = 0;
1858                 struct ctdlipcmessage *msg = NULL;
1859
1860                 /* read the header so we can get 'from=' */
1861                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1862                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1863                         a = lasta; /* meesa current */
1864                         founda = 1;
1865                 }
1866
1867                 free(msg);
1868
1869                 if (founda)
1870                         break; /* for */
1871                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1872               } /* for */
1873           } /* case 'y' */
1874       } /* switch */
1875         }                       /* end for loop */
1876 }                               /* end read routine */
1877
1878
1879
1880
1881 /*
1882  * View and edit a system message
1883  */
1884 void edit_system_message(CtdlIPC *ipc, char *which_message)
1885 {
1886         char desc[SIZ];
1887         char read_cmd[SIZ];
1888         char write_cmd[SIZ];
1889
1890         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1891         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1892         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1893         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1894 }
1895
1896
1897
1898
1899 /*
1900  * Verify the message base
1901  */
1902 void check_message_base(CtdlIPC *ipc)
1903 {
1904         char buf[SIZ];
1905         char *transcript = NULL;
1906         int r;          /* IPC response code */
1907
1908         scr_printf
1909             ("Please read the documentation before running this command.\n"
1910             "Having done so, do you still want to check the message base? ");
1911         if (yesno() == 0)
1912                 return;
1913
1914         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1915         if (r / 100 != 1) {
1916                 scr_printf("%s\n", buf);
1917                 return;
1918         }
1919
1920         while (transcript && strlen(transcript)) {
1921                 lines_printed = 1;
1922                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1923                 remove_token(transcript, 0, '\n');
1924                 pprintf("%s\n", buf);
1925         }
1926         if (transcript) free(transcript);
1927         return;
1928 }
1929
1930
1931 /*
1932  * Loads the contents of a file into memory.  Caller must free the allocated
1933  * memory.
1934  */
1935 char *load_message_from_file(FILE *src)
1936 {
1937         size_t i;
1938         size_t got = 0;
1939         char *dest = NULL;
1940
1941         fseek(src, 0, SEEK_END);
1942         i = ftell(src);
1943         rewind(src);
1944
1945         dest = (char *)calloc(1, i + 1);
1946         if (!dest)
1947                 return NULL;
1948
1949         while (got < i) {
1950                 size_t g;
1951
1952                 g = fread(dest + got, 1, i - got, src);
1953                 got += g;
1954                 if (g < i - got) {
1955                         /* Interrupted system call, keep going */
1956                         if (errno == EINTR)
1957                                 continue;
1958                         /* At this point we have either EOF or error */
1959                         i = got;
1960                         break;
1961                 }
1962                 dest[i] = 0;
1963         }
1964
1965         return dest;
1966 }