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 <libcitadel.h>
  39 #include "citadel.h"
  40 #include "citadel_ipc.h"
  41 #include "citadel_decls.h"
  42 #include "messages.h"
  43 #include "commands.h"
  44 #include "rooms.h"
  45 #ifndef HAVE_SNPRINTF
  46 #include "snprintf.h"
  47 #endif
  48 #include "screen.h"
  49
  50 #define MAXWORDBUF SIZ
  51 #define NO_REPLY_TO     "nobody ... xxxxxx"
  52
  53 char reply_to[SIZ];
  54 char reply_subject[SIZ];
  55 char reply_references[SIZ];
  56 char reply_inreplyto[SIZ];
  57
  58 struct cittext {
  59         struct cittext *next;
  60         char text[MAXWORDBUF];
  61 };
  62
  63 void stty_ctdl(int cmd);
  64 int haschar(const char *st, int ch);
  65 void ctdl_getline(char *string, int lim);
  66 int file_checksum(char *filename);
  67 void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
  68
  69 unsigned long *msg_arr = NULL;
  70 int msg_arr_size = 0;
  71 int num_msgs;
  72 char rc_alt_semantics;
  73 extern char room_name[];
  74 extern char tempdir[];
  75 extern unsigned room_flags;
  76 extern unsigned room_flags2;
  77 extern long highest_msg_read;
  78 extern char temp[];
  79 extern char temp2[];
  80 extern int screenwidth;
  81 extern int screenheight;
  82 extern long maxmsgnum;
  83 extern char is_mail;
  84 extern char is_aide;
  85 extern char is_room_aide;
  86 extern char fullname[];
  87 extern char axlevel;
  88 extern unsigned userflags;
  89 extern char sigcaught;
  90 extern char printcmd[];
  91 extern int rc_allow_attachments;
  92 extern int rc_display_message_numbers;
  93 extern int rc_force_mail_prompts;
  94 extern int editor_pid;
  95 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  96 int num_urls = 0;
  97 char urls[MAXURLS][SIZ];
  98 char imagecmd[SIZ];
  99 int has_images = 0;                             /* Current msg has images */
 100 struct parts *last_message_parts = NULL;        /* Parts from last msg */
 101
 102
 103
 104 void ka_sigcatch(int signum)
 105 {
 106         alarm(S_KEEPALIVE);
 107         signal(SIGALRM, ka_sigcatch);
 108         CtdlIPCNoop(ipc_for_signal_handlers);
 109 }
 110
 111
 112 /*
 113  * server keep-alive version of wait() (needed for external editor)
 114  */
 115 pid_t ka_wait(int *kstatus)
 116 {
 117         pid_t p;
 118
 119         alarm(S_KEEPALIVE);
 120         signal(SIGALRM, ka_sigcatch);
 121         do {
 122                 errno = 0;
 123                 p = wait(kstatus);
 124         } while (errno == EINTR);
 125         signal(SIGALRM, SIG_IGN);
 126         alarm(0);
 127         return (p);
 128 }
 129
 130
 131 /*
 132  * version of system() that uses ka_wait()
 133  */
 134 int ka_system(char *shc)
 135 {
 136         pid_t childpid;
 137         pid_t waitpid;
 138         int retcode;
 139
 140         childpid = fork();
 141         if (childpid < 0) {
 142                 color(BRIGHT_RED);
 143                 perror("Cannot fork");
 144                 color(DIM_WHITE);
 145                 return ((pid_t) childpid);
 146         }
 147
 148         if (childpid == 0) {
 149                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 150                 exit(127);
 151         }
 152
 153         if (childpid > 0) {
 154                 do {
 155                         waitpid = ka_wait(&retcode);
 156                 } while (waitpid != childpid);
 157                 return (retcode);
 158         }
 159
 160         return (-1);
 161 }
 162
 163
 164
 165 /*
 166  * add a newline to the buffer...
 167  */
 168 void add_newline(struct cittext *textlist)
 169 {
 170         struct cittext *ptr;
 171
 172         ptr = textlist;
 173         while (ptr->next != NULL)
 174                 ptr = ptr->next;
 175
 176         while (ptr->text[strlen(ptr->text) - 1] == 32)
 177                 ptr->text[strlen(ptr->text) - 1] = 0;
 178         /* strcat(ptr->text,"\n"); */
 179
 180         ptr->next = (struct cittext *)
 181             malloc(sizeof(struct cittext));
 182         ptr = ptr->next;
 183         ptr->next = NULL;
 184         strcpy(ptr->text, "");
 185 }
 186
 187
 188 /*
 189  * add a word to the buffer...
 190  */
 191 void add_word(struct cittext *textlist, char *wordbuf)
 192 {
 193         struct cittext *ptr;
 194
 195         ptr = textlist;
 196         while (ptr->next != NULL)
 197                 ptr = ptr->next;
 198
 199         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 200                 ptr->next = (struct cittext *)
 201                     malloc(sizeof(struct cittext));
 202                 ptr = ptr->next;
 203                 ptr->next = NULL;
 204                 strcpy(ptr->text, "");
 205         }
 206
 207         strcat(ptr->text, wordbuf);
 208         strcat(ptr->text, " ");
 209 }
 210
 211
 212 /*
 213  * begin editing of an opened file pointed to by fp
 214  */
 215 void citedit(CtdlIPC *ipc, FILE * fp)
 216 {
 217         int a, prev, finished, b, last_space;
 218         int appending = 0;
 219         struct cittext *textlist = NULL;
 220         struct cittext *ptr;
 221         char wordbuf[MAXWORDBUF];
 222
 223         /* first, load the text into the buffer */
 224         fseek(fp, 0L, 0);
 225         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 226         textlist->next = NULL;
 227         strcpy(textlist->text, "");
 228
 229         strcpy(wordbuf, "");
 230         prev = (-1);
 231         while (a = getc(fp), a >= 0) {
 232                 appending = 1;
 233                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 234                         add_word(textlist, wordbuf);
 235                         strcpy(wordbuf, "");
 236                         if ((prev == 13) || (prev == 10)) {
 237                                 add_word(textlist, "\n");
 238                                 add_newline(textlist);
 239                                 add_word(textlist, "");
 240                         }
 241                 } else {
 242                         wordbuf[strlen(wordbuf) + 1] = 0;
 243                         wordbuf[strlen(wordbuf)] = a;
 244                 }
 245                 if (strlen(wordbuf) + 3 > screenwidth) {
 246                         add_word(textlist, wordbuf);
 247                         strcpy(wordbuf, "");
 248                 }
 249                 prev = a;
 250         }
 251
 252         /* get text */
 253         finished = 0;
 254         prev = (appending ? 13 : (-1));
 255         strcpy(wordbuf, "");
 256         async_ka_start();
 257         do {
 258                 a = inkey();
 259                 if (a == 10)
 260                         a = 13;
 261                 if (a == 9)
 262                         a = 32;
 263                 if (a == 127)
 264                         a = 8;
 265
 266                 if ((a != 32) && (prev == 13)) {
 267                         add_word(textlist, "\n");
 268                         scr_printf(" ");
 269                 }
 270
 271                 if ((a == 32) && (prev == 13)) {
 272                         add_word(textlist, "\n");
 273                         add_newline(textlist);
 274                 }
 275
 276                 if (a == 8) {
 277                         if (!IsEmptyStr(wordbuf)) {
 278                                 wordbuf[strlen(wordbuf) - 1] = 0;
 279                                 scr_putc(8);
 280                                 scr_putc(32);
 281                                 scr_putc(8);
 282                         }
 283                 } else if (a == 23) {
 284                         do {
 285                                 wordbuf[strlen(wordbuf) - 1] = 0;
 286                                 scr_putc(8);
 287                                 scr_putc(32);
 288                                 scr_putc(8);
 289                         } while (!IsEmptyStr(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 290                 } else if (a == 13) {
 291                         scr_printf("\n");
 292                         if (IsEmptyStr(wordbuf))
 293                                 finished = 1;
 294                         else {
 295                                 for (b = 0; b < strlen(wordbuf); ++b)
 296                                         if (wordbuf[b] == 32) {
 297                                                 wordbuf[b] = 0;
 298                                                 add_word(textlist,
 299                                                          wordbuf);
 300                                                 strcpy(wordbuf,
 301                                                        &wordbuf[b + 1]);
 302                                                 b = 0;
 303                                         }
 304                                 add_word(textlist, wordbuf);
 305                                 strcpy(wordbuf, "");
 306                         }
 307                 } else {
 308                         scr_putc(a);
 309                         wordbuf[strlen(wordbuf) + 1] = 0;
 310                         wordbuf[strlen(wordbuf)] = a;
 311                 }
 312                 if ((strlen(wordbuf) + 3) > screenwidth) {
 313                         last_space = (-1);
 314                         for (b = 0; b < strlen(wordbuf); ++b)
 315                                 if (wordbuf[b] == 32)
 316                                         last_space = b;
 317                         if (last_space >= 0) {
 318                                 for (b = 0; b < strlen(wordbuf); ++b)
 319                                         if (wordbuf[b] == 32) {
 320                                                 wordbuf[b] = 0;
 321                                                 add_word(textlist,
 322                                                          wordbuf);
 323                                                 strcpy(wordbuf,
 324                                                        &wordbuf[b + 1]);
 325                                                 b = 0;
 326                                         }
 327                                 for (b = 0; b < strlen(wordbuf); ++b) {
 328                                         scr_putc(8);
 329                                         scr_putc(32);
 330                                         scr_putc(8);
 331                                 }
 332                                 scr_printf("\n%s", wordbuf);
 333                         } else {
 334                                 add_word(textlist, wordbuf);
 335                                 strcpy(wordbuf, "");
 336                                 scr_printf("\n");
 337                         }
 338                 }
 339                 prev = a;
 340         } while (finished == 0);
 341         async_ka_end();
 342
 343         /* write the buffer back to disk */
 344         fseek(fp, 0L, 0);
 345         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 346                 fprintf(fp, "%s", ptr->text);
 347         }
 348         putc(10, fp);
 349         fflush(fp);
 350         ftruncate(fileno(fp), ftell(fp));
 351
 352         /* and deallocate the memory we used */
 353         while (textlist != NULL) {
 354                 ptr = textlist->next;
 355                 free(textlist);
 356                 textlist = ptr;
 357         }
 358 }
 359
 360
 361 /*
 362  * Free the struct parts
 363  */
 364 void free_parts(struct parts *p)
 365 {
 366         struct parts *a_part = p;
 367
 368         while (a_part) {
 369                 struct parts *q;
 370
 371                 q = a_part;
 372                 a_part = a_part->next;
 373                 free(q);
 374         }
 375 }
 376
 377
 378 /*
 379  * Read a message from the server
 380  */
 381 int read_message(CtdlIPC *ipc,
 382         long num,   /* message number */
 383         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 384         FILE *dest) /* Destination file, NULL for screen */
 385 {
 386         char buf[SIZ];
 387         char now[SIZ];
 388         int format_type = 0;
 389         int fr = 0;
 390         int nhdr = 0;
 391         struct ctdlipcmessage *message = NULL;
 392         int r;                          /* IPC response code */
 393         char *converted_text = NULL;
 394         char *lineptr;
 395         char *nextline;
 396         char *searchptr;
 397         int i;
 398         char ch;
 399         int linelen;
 400         int final_line_is_blank = 0;
 401
 402         has_images = 0;
 403
 404         sigcaught = 0;
 405         stty_ctdl(1);
 406
 407         strcpy(reply_to, NO_REPLY_TO);
 408         strcpy(reply_subject, "");
 409         strcpy(reply_references, "");
 410         strcpy(reply_inreplyto, "");
 411
 412         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0), 4, &message, buf);
 413         if (r / 100 != 1) {
 414                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 415                 ++lines_printed;
 416                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 417                 stty_ctdl(0);
 418                 free(message->text);
 419                 free_parts(message->attachments);
 420                 free(message);
 421                 return (0);
 422         }
 423
 424         if (dest) {
 425                 fprintf(dest, "\n ");
 426         } else {
 427                 scr_printf("\n");
 428                 ++lines_printed;
 429                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 430                 if (pagin != 2)
 431                         scr_printf(" ");
 432         }
 433         if (pagin == 1 && !dest) {
 434                 color(BRIGHT_CYAN);
 435         }
 436
 437         /* View headers only */
 438         if (pagin == 2) {
 439                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 440                                 message->nhdr ? "yes" : "no",
 441                                 message->author, message->type,
 442                                 message->msgid);
 443                 if (!IsEmptyStr(message->subject)) {
 444                         pprintf("subj=%s\n", message->subject);
 445                 }
 446                 if (!IsEmptyStr(message->email)) {
 447                         pprintf("rfca=%s\n", message->email);
 448                 }
 449                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 450                                 message->hnod, message->room,
 451                                 message->node,
 452                                 asctime(localtime(&message->time)));
 453                 if (!IsEmptyStr(message->recipient)) {
 454                         pprintf("rcpt=%s\n", message->recipient);
 455                 }
 456                 if (message->attachments) {
 457                         struct parts *ptr;
 458
 459                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 460                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 461                                         ptr->name, ptr->filename, ptr->number,
 462                                         ptr->disposition, ptr->mimetype,
 463                                         ptr->length);
 464                         }
 465                 }
 466                 pprintf("\n");
 467                 stty_ctdl(0);
 468                 free(message->text);
 469                 free_parts(message->attachments);
 470                 free(message);
 471                 return (0);
 472         }
 473
 474         if (rc_display_message_numbers) {
 475                 if (dest) {
 476                         fprintf(dest, "[#%s] ", message->msgid);
 477                 } else {
 478                         color(DIM_WHITE);
 479                         scr_printf("[");
 480                         color(BRIGHT_WHITE);
 481                         scr_printf("#%s", message->msgid);
 482                         color(DIM_WHITE);
 483                         scr_printf("] ");
 484                 }
 485         }
 486         if (nhdr == 1 && !is_room_aide) {
 487                 if (dest) {
 488                         fprintf(dest, " ****");
 489                 } else {
 490                         scr_printf(" ****");
 491                 }
 492         } else {
 493                 fmt_date(now, sizeof now, message->time, 0);
 494                 if (dest) {
 495                         fprintf(dest, "%s from %s ", now, message->author);
 496                         if (!IsEmptyStr(message->email)) {
 497                                 fprintf(dest, "<%s> ", message->email);
 498                         }
 499                 } else {
 500                         color(BRIGHT_CYAN);
 501                         scr_printf("%s ", now);
 502                         color(DIM_WHITE);
 503                         scr_printf("from ");
 504                         color(BRIGHT_CYAN);
 505                         scr_printf("%s ", message->author);
 506                         if (!IsEmptyStr(message->email)) {
 507                                 color(DIM_WHITE);
 508                                 scr_printf("<");
 509                                 color(BRIGHT_BLUE);
 510                                 scr_printf("%s", message->email);
 511                                         color(DIM_WHITE);
 512                                 scr_printf("> ");
 513                         }
 514                 }
 515                 if (!IsEmptyStr(message->node)) {
 516                         if ((room_flags & QR_NETWORK)
 517                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 518                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 519                                 if (IsEmptyStr(message->email)) {
 520                                         if (dest) {
 521                                                 fprintf(dest, "@%s ", message->node);
 522                                         } else {
 523                                                 color(DIM_WHITE);
 524                                                 scr_printf("@");
 525                                                 color(BRIGHT_YELLOW);
 526                                                 scr_printf("%s ", message->node);
 527                                         }
 528                                 }
 529                         }
 530                 }
 531                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 532                     && (!IsEmptyStr(message->hnod)) && (IsEmptyStr(message->email))) {
 533                         if (dest) {
 534                                 fprintf(dest, "(%s) ", message->hnod);
 535                         } else {
 536                                 color(DIM_WHITE);
 537                                 scr_printf("(");
 538                                 color(BRIGHT_WHITE);
 539                                 scr_printf("%s", message->hnod);
 540                                 color(DIM_WHITE);
 541                                 scr_printf(") ");
 542                         }
 543                 }
 544                 if (strcasecmp(message->room, room_name) && (IsEmptyStr(message->email))) {
 545                         if (dest) {
 546                                 fprintf(dest, "in %s> ", message->room);
 547                         } else {
 548                                 color(DIM_WHITE);
 549                                 scr_printf("in ");
 550                                 color(BRIGHT_MAGENTA);
 551                                 scr_printf("%s> ", message->room);
 552                         }
 553                 }
 554                 if (!IsEmptyStr(message->recipient)) {
 555                         if (dest) {
 556                                 fprintf(dest, "to %s ", message->recipient);
 557                         } else {
 558                                 color(DIM_WHITE);
 559                                 scr_printf("to ");
 560                                 color(BRIGHT_CYAN);
 561                                 scr_printf("%s ", message->recipient);
 562                         }
 563                 }
 564         }
 565
 566         if (dest) {
 567                 fprintf(dest, "\n");
 568         } else {
 569                 scr_printf("\n");
 570         }
 571
 572         /* Set the reply-to address to an Internet e-mail address if possible
 573          */
 574         if ((message->email != NULL) && (!IsEmptyStr(message->email))) {
 575                 if (!IsEmptyStr(message->author)) {
 576                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 577                 }
 578                 else {
 579                         safestrncpy(reply_to, message->email, sizeof reply_to);
 580                 }
 581         }
 582
 583         /* But if we can't do that, set it to a Citadel address.
 584          */
 585         if (!strcmp(reply_to, NO_REPLY_TO)) {
 586                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 587                          message->author, message->node);
 588         }
 589
 590         if (!dest) {
 591                 ++lines_printed;
 592                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 593         }
 594
 595
 596         if (message->msgid != NULL) {
 597                 safestrncpy(reply_inreplyto, message->msgid, sizeof reply_inreplyto);
 598         }
 599
 600         if (message->references != NULL) if (!IsEmptyStr(message->references)) {
 601                 safestrncpy(reply_references, message->references, sizeof reply_references);
 602         }
 603
 604         if (message->subject != NULL) {
 605                 safestrncpy(reply_subject, message->subject, sizeof reply_subject);
 606                 if (!IsEmptyStr(message->subject)) {
 607                         if (dest) {
 608                                 fprintf(dest, "Subject: %s\n",
 609                                                         message->subject);
 610                         } else {
 611                                 color(DIM_WHITE);
 612                                 scr_printf("Subject: ");
 613                                 color(BRIGHT_CYAN);
 614                                 scr_printf("%s\n", message->subject);
 615                                 ++lines_printed;
 616                                 lines_printed = checkpagin(lines_printed,
 617                                                 pagin, screenheight);
 618                         }
 619                 }
 620         }
 621
 622         if (pagin == 1 && !dest) {
 623                 color(BRIGHT_WHITE);
 624         }
 625
 626         /******* end of header output, start of message text output *******/
 627
 628         /*
 629          * Convert HTML to plain text, formatting for the actual width
 630          * of the client screen.
 631          */
 632         if (!strcasecmp(message->content_type, "text/html")) {
 633                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 634                 if (converted_text != NULL) {
 635                         free(message->text);
 636                         message->text = converted_text;
 637                         format_type = 1;
 638                 }
 639         }
 640
 641         /* Text/plain is a different type */
 642         if (!strcasecmp(message->content_type, "text/plain")) {
 643                 format_type = 1;
 644         }
 645
 646         /* Extract URL's */
 647         num_urls = 0;   /* Start with a clean slate */
 648         searchptr = message->text;
 649         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 650                 searchptr = strstr(searchptr, "http://");
 651                 if (searchptr != NULL) {
 652                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 653                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 654                                 ch = urls[num_urls][i];
 655                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 656                                     ch == ' ' || ch == '\n') {
 657                                         urls[num_urls][i] = 0;
 658                                         break;
 659                                 }
 660                         }
 661                         num_urls++;
 662                         ++searchptr;
 663                 }
 664         }
 665
 666         /*
 667          * Here we go
 668          */
 669         if (format_type == 0) {
 670                 fr = fmout(screenwidth, NULL, message->text, dest,
 671                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 672         } else {
 673                 /* renderer for text/plain */
 674
 675                 lineptr = message->text;
 676
 677                 do {
 678                         nextline = strchr(lineptr, '\n');
 679                         if (nextline != NULL) {
 680                                 *nextline = 0;
 681                                 ++nextline;
 682                                 if (*nextline == 0) nextline = NULL;
 683                         }
 684
 685                         if (sigcaught == 0) {
 686                                 linelen = strlen(lineptr);
 687                                 if (linelen && (lineptr[linelen-1] == '\r')) {
 688                                         lineptr[--linelen] = 0;
 689                                 }
 690                                 if (dest) {
 691                                         fprintf(dest, "%s\n", lineptr);
 692                                 } else {
 693                                         scr_printf("%s\n", lineptr);
 694                                         lines_printed = lines_printed + 1 +
 695                                             (linelen / screenwidth);
 696                                         lines_printed =
 697                                             checkpagin(lines_printed, pagin,
 698                                                        screenheight);
 699                                 }
 700                         }
 701                         if (lineptr[0] == 0) final_line_is_blank = 1;
 702                         else final_line_is_blank = 0;
 703                         lineptr = nextline;
 704                 } while (nextline);
 705                 fr = sigcaught;
 706         }
 707         if (!final_line_is_blank) {
 708                 if (dest) {
 709                         fprintf(dest, "\n");
 710                 }
 711                 else {
 712                         scr_printf("\n");
 713                         ++lines_printed;
 714                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 715                         fr = sigcaught;
 716                 }
 717         }
 718
 719         /* Enumerate any attachments */
 720         if ( (pagin == 1) && (message->attachments) ) {
 721                 struct parts *ptr;
 722
 723                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 724                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 725                            || (!strcasecmp(ptr->disposition, "inline"))
 726                            || (!strcasecmp(ptr->disposition, ""))
 727                         ) {
 728                                 if ( (strcasecmp(ptr->number, message->mime_chosen))
 729                                    && (!IsEmptyStr(ptr->mimetype))
 730                                 ) {
 731                                         color(DIM_WHITE);
 732                                         pprintf("Part ");
 733                                         color(BRIGHT_MAGENTA);
 734                                         pprintf("%s", ptr->number);
 735                                         color(DIM_WHITE);
 736                                         pprintf(": ");
 737                                         color(BRIGHT_CYAN);
 738                                         pprintf("%s", ptr->filename);
 739                                         color(DIM_WHITE);
 740                                         pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 741                                         if (!strncmp(ptr->mimetype, "image/", 6)) {
 742                                                 has_images++;
 743                                         }
 744                                 }
 745                         }
 746                 }
 747         }
 748
 749         /* Save the attachments info for later */
 750         last_message_parts = message->attachments;
 751
 752         /* Now we're done */
 753         free(message->text);
 754         free(message);
 755
 756         if (pagin == 1 && !dest)
 757                 color(DIM_WHITE);
 758         stty_ctdl(0);
 759         return (fr);
 760 }
 761
 762 /*
 763  * replace string function for the built-in editor
 764  */
 765 void replace_string(char *filename, long int startpos)
 766 {
 767         char buf[512];
 768         char srch_str[128];
 769         char rplc_str[128];
 770         FILE *fp;
 771         int a;
 772         long rpos, wpos;
 773         char *ptr;
 774         int substitutions = 0;
 775         long msglen = 0L;
 776
 777         scr_printf("Enter text to be replaced:\n: ");
 778         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 779         if (IsEmptyStr(srch_str))
 780                 return;
 781
 782         scr_printf("Enter text to replace it with:\n: ");
 783         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 784
 785         fp = fopen(filename, "r+");
 786         if (fp == NULL)
 787                 return;
 788
 789         wpos = startpos;
 790         fseek(fp, startpos, 0);
 791         strcpy(buf, "");
 792         while (a = getc(fp), a > 0) {
 793                 ++msglen;
 794                 buf[strlen(buf) + 1] = 0;
 795                 buf[strlen(buf)] = a;
 796                 if (strlen(buf) >= strlen(srch_str)) {
 797                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 798                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 799                                 strcpy(ptr, rplc_str);
 800                                 ++substitutions;
 801                         }
 802                 }
 803                 if (strlen(buf) > 384) {
 804                         rpos = ftell(fp);
 805                         fseek(fp, wpos, 0);
 806                         fwrite((char *) buf, 128, 1, fp);
 807                         strcpy(buf, &buf[128]);
 808                         wpos = ftell(fp);
 809                         fseek(fp, rpos, 0);
 810                 }
 811         }
 812         fseek(fp, wpos, 0);
 813         if (!IsEmptyStr(buf))
 814                 fwrite((char *) buf, strlen(buf), 1, fp);
 815         wpos = ftell(fp);
 816         fclose(fp);
 817         truncate(filename, wpos);
 818         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 819 }
 820
 821 /*
 822  * Function to begin composing a new message
 823  */
 824 int client_make_message(CtdlIPC *ipc,
 825                                                 char *filename,         /* temporary file name */
 826                                                 char *recipient,        /* NULL if it's not mail */
 827                                                 int is_anonymous,
 828                                                 int format_type,
 829                                                 int mode,
 830                                                 char *subject,          /* buffer to store subject line */
 831                                                 int subject_required)
 832 {
 833         FILE *fp;
 834         int a, b, e_ex_code;
 835         long beg;
 836         char datestr[SIZ];
 837         char header[SIZ];
 838         char *editor_path = NULL;
 839         int cksum = 0;
 840
 841         if (mode >= 2)
 842         {
 843                 if((mode-2) < MAX_EDITORS && !IsEmptyStr(editor_paths[mode-2])) {
 844                         editor_path = editor_paths[mode-2];
 845                 } else if (!IsEmptyStr(editor_paths[0])) {
 846                         editor_path = editor_paths[0];
 847                 } else {
 848                         err_printf("*** No editor available, "
 849                                 "using built-in editor\n");
 850                         mode = 0;
 851                 }
 852         }
 853
 854         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 855         header[0] = 0;
 856
 857         if (room_flags & QR_ANONONLY && !recipient) {
 858                 snprintf(header, sizeof header, " ****");
 859         }
 860         else {
 861                 snprintf(header, sizeof header,
 862                         " %s from %s",
 863                         datestr,
 864                         (is_anonymous ? "[anonymous]" : fullname)
 865                         );
 866                 if (!IsEmptyStr(recipient)) {
 867                         size_t tmp = strlen(header);
 868                         snprintf(&header[tmp], sizeof header - tmp,
 869                                 " to %s", recipient);
 870                 }
 871         }
 872         scr_printf("%s\n", header);
 873         if (subject != NULL) if (!IsEmptyStr(subject)) {
 874                 scr_printf("Subject: %s\n", subject);
 875         }
 876
 877         if ( (subject_required) && (IsEmptyStr(subject)) ) {
 878                 newprompt("Subject: ", subject, 70);
 879         }
 880
 881         beg = 0L;
 882
 883         if (mode == 1) {
 884                 scr_printf("(Press ctrl-d when finished)\n");
 885         }
 886
 887         if (mode == 0) {
 888                 fp = fopen(filename, "r");
 889                 if (fp != NULL) {
 890                         fmout(screenwidth, fp, NULL, NULL, 0,
 891                                 screenheight, 0, 0);
 892                         beg = ftell(fp);
 893                         fclose(fp);
 894                 } else {
 895                         fp = fopen(filename, "w");
 896                         if (fp == NULL) {
 897                                 err_printf("*** Error opening temp file!\n"
 898                                         "    %s: %s\n",
 899                                         filename, strerror(errno));
 900                         return(1);
 901                         }
 902                         fclose(fp);
 903                 }
 904         }
 905
 906 ME1:    switch (mode) {
 907
 908         case 0:
 909                 fp = fopen(filename, "r+");
 910                 if (fp == NULL) {
 911                         err_printf("*** Error opening temp file!\n"
 912                                 "    %s: %s\n",
 913                                 filename, strerror(errno));
 914                         return(1);
 915                 }
 916                 citedit(ipc, fp);
 917                 fclose(fp);
 918                 goto MECR;
 919
 920         case 1:
 921                 fp = fopen(filename, "a");
 922                 if (fp == NULL) {
 923                         err_printf("*** Error opening temp file!\n"
 924                                 "    %s: %s\n",
 925                                 filename, strerror(errno));
 926                         return(1);
 927                 }
 928                 do {
 929                         a = inkey();
 930                         if (a == 255)
 931                                 a = 32;
 932                         if (a == 13)
 933                                 a = 10;
 934                         if (a != 4) {
 935                                 putc(a, fp);
 936                                 scr_putc(a);
 937                         }
 938                         if (a == 10)
 939                                 scr_putc(10);
 940                 } while (a != 4);
 941                 fclose(fp);
 942                 break;
 943
 944         case 2:
 945         default:        /* allow 2+ modes */
 946                 e_ex_code = 1;  /* start with a failed exit code */
 947                 screen_reset();
 948                 stty_ctdl(SB_RESTORE);
 949                 editor_pid = fork();
 950                 cksum = file_checksum(filename);
 951                 if (editor_pid == 0) {
 952                         char tmp[SIZ];
 953
 954                         chmod(filename, 0600);
 955                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 956                         putenv(tmp);
 957                         execlp(editor_path, editor_path, filename, NULL);
 958                         exit(1);
 959                 }
 960                 if (editor_pid > 0)
 961                         do {
 962                                 e_ex_code = 0;
 963                                 b = ka_wait(&e_ex_code);
 964                         } while ((b != editor_pid) && (b >= 0));
 965                 editor_pid = (-1);
 966                 stty_ctdl(0);
 967                 screen_set();
 968                 break;
 969         }
 970
 971 MECR:   if (mode >= 2) {
 972                 if (file_checksum(filename) == cksum) {
 973                         err_printf("*** Aborted message.\n");
 974                         e_ex_code = 1;
 975                 }
 976                 if (e_ex_code == 0) {
 977                         goto MEFIN;
 978                 }
 979                 goto MEABT2;
 980         }
 981
 982         b = keymenu("Entry command (? for options)",
 983                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 984                     "add s<U>bject|"
 985                     "<R>eplace string|<H>old message");
 986
 987         if (b == 'a') goto MEABT;
 988         if (b == 'c') goto ME1;
 989         if (b == 's') goto MEFIN;
 990         if (b == 'p') {
 991                 scr_printf(" %s from %s", datestr, fullname);
 992                 if (!IsEmptyStr(recipient)) {
 993                         scr_printf(" to %s", recipient);
 994                 }
 995                 scr_printf("\n");
 996                 if (subject != NULL) if (!IsEmptyStr(subject)) {
 997                         scr_printf("Subject: %s\n", subject);
 998                 }
 999                 fp = fopen(filename, "r");
1000                 if (fp != NULL) {
1001                         fmout(screenwidth, fp, NULL, NULL,
1002                               ((userflags & US_PAGINATOR) ? 1 : 0),
1003                               screenheight, 0, 0);
1004                         beg = ftell(fp);
1005                         fclose(fp);
1006                 }
1007                 goto MECR;
1008         }
1009         if (b == 'r') {
1010                 replace_string(filename, 0L);
1011                 goto MECR;
1012         }
1013         if (b == 'h') {
1014                 return (2);
1015         }
1016         if (b == 'u') {
1017                 if (subject != NULL) {
1018                         newprompt("Subject: ", subject, 70);
1019                 }
1020                 goto MECR;
1021         }
1022
1023 MEFIN:  return (0);
1024
1025 MEABT:  scr_printf("Are you sure? ");
1026         if (yesno() == 0) {
1027                 goto ME1;
1028         }
1029 MEABT2: unlink(filename);
1030         return (2);
1031 }
1032
1033
1034 /*
1035  * Make sure there's room in msg_arr[] for at least one more.
1036  */
1037 void check_msg_arr_size(void) {
1038         if ((num_msgs + 1) > msg_arr_size) {
1039                 msg_arr_size += 512;
1040                 msg_arr = realloc(msg_arr,
1041                         ((sizeof(long)) * msg_arr_size) );
1042         }
1043 }
1044
1045
1046 /*
1047  * break_big_lines()  -  break up lines that are >1024 characters
1048  *                       otherwise the server will truncate
1049  */
1050 void break_big_lines(char *msg) {
1051         char *ptr;
1052         char *break_here;
1053
1054         if (msg == NULL) {
1055                 return;
1056         }
1057
1058         ptr = msg;
1059         while (strlen(ptr) > 1000) {
1060                 break_here = strchr(&ptr[900], ' ');
1061                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1062                         break_here = &ptr[999];
1063                 }
1064                 *break_here = '\n';
1065                 ptr = break_here++;
1066         }
1067 }
1068
1069
1070 /*
1071  * entmsg()  -  edit and create a message
1072  *              returns 0 if message was saved
1073  */
1074 int entmsg(CtdlIPC *ipc,
1075                 int is_reply,   /* nonzero if this was a <R>eply command */
1076                 int c,          /* mode */
1077                 int masquerade  /* prompt for a non-default display name? */
1078 ) {
1079         char buf[SIZ];
1080         int a, b;
1081         int need_recp = 0;
1082         int mode;
1083         long highmsg = 0L;
1084         FILE *fp;
1085         char subject[SIZ];
1086         struct ctdlipcmessage message;
1087         unsigned long *msgarr = NULL;
1088         int r;                  /* IPC response code */
1089         int subject_required = 0;
1090
1091         if (c > 0)
1092                 mode = 1;
1093         else
1094                 mode = 0;
1095
1096         strcpy(subject, "");
1097
1098         /*
1099          * First, check to see if we have permission to enter a message in
1100          * this room.  The server will return an error code if we can't.
1101          */
1102         strcpy(message.recipient, "");
1103         strcpy(message.author, "");
1104         strcpy(message.subject, "");
1105         strcpy(message.references, "");
1106         message.text = "";              /* point to "", changes later */
1107         message.anonymous = 0;
1108         message.type = mode;
1109
1110         if (masquerade) {
1111                 newprompt("Display name for this message: ", message.author, 40);
1112         }
1113
1114         r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1115
1116         if (r / 100 != 2 && r / 10 != 57) {
1117                 scr_printf("%s\n", buf);
1118                 return (1);
1119         }
1120
1121         /* Error code 570 is special.  It means that we CAN enter a message
1122          * in this room, but a recipient needs to be specified.
1123          */
1124         need_recp = 0;
1125         if (r / 10 == 57) {
1126                 need_recp = 1;
1127         }
1128
1129         /* If the user is a dumbass, tell them how to type. */
1130         if ((userflags & US_EXPERT) == 0) {
1131                 formout(ipc, "entermsg");
1132         }
1133
1134         /* Handle the selection of a recipient, if necessary. */
1135         strcpy(buf, "");
1136         if (need_recp == 1) {
1137                 if (axlevel >= 2) {
1138                         if (is_reply) {
1139                                 strcpy(buf, reply_to);
1140                         } else {
1141                                 scr_printf("Enter recipient: ");
1142                                 ctdl_getline(buf, (SIZ-100) );
1143                                 if (IsEmptyStr(buf))
1144                                         return (1);
1145                         }
1146                 } else
1147                         strcpy(buf, "sysop");
1148         }
1149         strcpy(message.recipient, buf);
1150
1151         if (is_reply) {
1152
1153                 if (!IsEmptyStr(reply_subject)) {
1154                         if (!strncasecmp(reply_subject,
1155                            "Re: ", 3)) {
1156                                 strcpy(message.subject, reply_subject);
1157                         }
1158                         else {
1159                                 snprintf(message.subject,
1160                                         sizeof message.subject,
1161                                         "Re: %s",
1162                                         reply_subject);
1163                         }
1164                 }
1165
1166                 /* Trim down excessively long lists of thread references.  We eliminate the
1167                  * second one in the list so that the thread root remains intact.
1168                  */
1169                 int rrtok = num_tokens(reply_references, '|');
1170                 int rrlen = strlen(reply_references);
1171                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1172                         remove_token(reply_references, 1, '|');
1173                 }
1174
1175                 snprintf(message.references, sizeof message.references, "%s%s%s",
1176                         reply_references,
1177                         (IsEmptyStr(reply_references) ? "" : "|"),
1178                         reply_inreplyto
1179                 );
1180         }
1181
1182         if (room_flags & QR_ANONOPT) {
1183                 scr_printf("Anonymous (Y/N)? ");
1184                 if (yesno() == 1)
1185                         message.anonymous = 1;
1186         }
1187
1188         /* If it's mail, we've got to check the validity of the recipient... */
1189         if (!IsEmptyStr(message.recipient)) {
1190                 r = CtdlIPCPostMessage(ipc, 0, &subject_required,  &message, buf);
1191                 if (r / 100 != 2) {
1192                         scr_printf("%s\n", buf);
1193                         return (1);
1194                 }
1195         }
1196
1197         /* Learn the number of the newest message in in the room, so we can
1198          * tell upon saving whether someone else has posted too.
1199          */
1200         num_msgs = 0;
1201         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1202         if (r / 100 != 1) {
1203                 scr_printf("%s\n", buf);
1204         } else {
1205                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1206                         ;
1207         }
1208
1209         /* Now compose the message... */
1210         if (client_make_message(ipc, temp, message.recipient,
1211            message.anonymous, 0, c, message.subject, subject_required) != 0) {
1212             if (msgarr) free(msgarr);
1213                 return (2);
1214         }
1215
1216         /* Reopen the temp file that was created, so we can send it */
1217         fp = fopen(temp, "r");
1218
1219         if (!fp || !(message.text = load_message_from_file(fp))) {
1220                 err_printf("*** Internal error while trying to save message!\n"
1221                         "%s: %s\n",
1222                         temp, strerror(errno));
1223                 unlink(temp);
1224                 return(errno);
1225         }
1226
1227         if (fp) fclose(fp);
1228
1229         /* Break lines that are >1024 characters, otherwise the server
1230          * will truncate them.
1231          */
1232         break_big_lines(message.text);
1233
1234         /* Transmit message to the server */
1235         r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1236         if (r / 100 != 4) {
1237                 scr_printf("%s\n", buf);
1238                 return (1);
1239         }
1240
1241         /* Yes, unlink it now, so it doesn't stick around if we crash */
1242         unlink(temp);
1243
1244         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1245
1246         if (msgarr) free(msgarr);
1247         msgarr = NULL;
1248         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1249         if (r / 100 != 1) {
1250                 scr_printf("%s\n", buf);
1251         } else {
1252                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1253                         ;
1254         }
1255
1256         /* get new highest message number in room to set lrp for goto... */
1257         maxmsgnum = msgarr[num_msgs - 1];
1258
1259         /* now see if anyone else has posted in here */
1260         b = (-1);
1261         for (a = 0; a < num_msgs; ++a) {
1262                 if (msgarr[a] > highmsg) {
1263                         ++b;
1264                 }
1265         }
1266         if (msgarr) free(msgarr);
1267         msgarr = NULL;
1268
1269         /* In the Mail> room, this algorithm always counts one message
1270          * higher than in public rooms, so we decrement it by one.
1271          */
1272         if (need_recp) {
1273                 --b;
1274         }
1275
1276         if (b == 1) {
1277                 scr_printf("*** 1 additional message has been entered "
1278                         "in this room by another user.\n");
1279         }
1280         else if (b > 1) {
1281                 scr_printf("*** %d additional messages have been entered "
1282                         "in this room by other users.\n", b);
1283         }
1284     free(message.text);
1285
1286         return(0);
1287 }
1288
1289 /*
1290  * Do editing on a quoted file
1291  */
1292 void process_quote(void)
1293 {
1294         FILE *qfile, *tfile;
1295         char buf[128];
1296         int line, qstart, qend;
1297
1298         /* Unlink the second temp file as soon as it's opened, so it'll get
1299          * deleted even if the program dies
1300          */
1301         qfile = fopen(temp2, "r");
1302         unlink(temp2);
1303
1304         /* Display the quotable text with line numbers added */
1305         line = 0;
1306         fgets(buf, 128, qfile);
1307         while (fgets(buf, 128, qfile) != NULL) {
1308                 scr_printf("%3d %s", ++line, buf);
1309         }
1310         scr_printf("Begin quoting at [1] : ");
1311         ctdl_getline(buf, 4);
1312         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1313         scr_printf("  End quoting at [%d] : ", line);
1314         ctdl_getline(buf, 4);
1315         qend = (buf[0] == 0) ? (line) : atoi(buf);
1316         rewind(qfile);
1317         line = 0;
1318         fgets(buf, 128, qfile);
1319         tfile = fopen(temp, "w");
1320         while (fgets(buf, 128, qfile) != NULL) {
1321                 if ((++line >= qstart) && (line <= qend))
1322                         fprintf(tfile, " >%s", buf);
1323         }
1324         fprintf(tfile, " \n");
1325         fclose(qfile);
1326         fclose(tfile);
1327         chmod(temp, 0666);
1328 }
1329
1330
1331
1332 /*
1333  * List the URL's which were embedded in the previous message
1334  */
1335 void list_urls(CtdlIPC *ipc)
1336 {
1337         int i;
1338         char cmd[SIZ];
1339
1340         if (num_urls == 0) {
1341                 scr_printf("There were no URL's in the previous message.\n\n");
1342                 return;
1343         }
1344
1345         for (i = 0; i < num_urls; ++i) {
1346                 scr_printf("%3d %s\n", i + 1, urls[i]);
1347         }
1348
1349         if ((i = num_urls) != 1)
1350                 i = intprompt("Display which one", 1, 1, num_urls);
1351
1352         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1353         system(cmd);
1354         scr_printf("\n");
1355 }
1356
1357
1358 /*
1359  * Run image viewer in background
1360  */
1361 int do_image_view(const char *filename)
1362 {
1363         char cmd[SIZ];
1364         pid_t childpid;
1365
1366         snprintf(cmd, sizeof cmd, imagecmd, filename);
1367         childpid = fork();
1368         if (childpid < 0) {
1369                 unlink(filename);
1370                 return childpid;
1371         }
1372
1373         if (childpid == 0) {
1374                 int retcode;
1375                 pid_t grandchildpid;
1376
1377                 grandchildpid = fork();
1378                 if (grandchildpid < 0) {
1379                         return grandchildpid;
1380                 }
1381
1382                 if (grandchildpid == 0) {
1383                         int nullfd;
1384                         int outfd = -1;
1385                         int errfd = -1;
1386
1387                         nullfd = open("/dev/null", O_WRONLY);
1388                         if (nullfd > -1) {
1389                                 dup2(1, outfd);
1390                                 dup2(2, errfd);
1391                                 dup2(nullfd, 1);
1392                                 dup2(nullfd, 2);
1393                         }
1394                         retcode = system(cmd);
1395                         if (nullfd > -1) {
1396                                 dup2(outfd, 1);
1397                                 dup2(errfd, 2);
1398                                 close(nullfd);
1399                         }
1400                         unlink(filename);
1401                         exit(retcode);
1402                 }
1403
1404                 if (grandchildpid > 0) {
1405                         exit(0);
1406                 }
1407         }
1408
1409         if (childpid > 0) {
1410                 int retcode;
1411
1412                 waitpid(childpid, &retcode, 0);
1413                 return retcode;
1414         }
1415
1416         return -1;
1417 }
1418
1419
1420 /*
1421  * View an image attached to a message
1422  */
1423 void image_view(CtdlIPC *ipc, unsigned long msg)
1424 {
1425         struct parts *ptr = last_message_parts;
1426         char part[SIZ];
1427         int found = 0;
1428
1429         /* Run through available parts */
1430         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1431                 if ((!strcasecmp(ptr->disposition, "attachment")
1432                    || !strcasecmp(ptr->disposition, "inline"))
1433                    && !strncmp(ptr->mimetype, "image/", 6)) {
1434                         found++;
1435                         if (found == 1) {
1436                                 strcpy(part, ptr->number);
1437                         }
1438                 }
1439         }
1440
1441         while (found > 0) {
1442                 if (found > 1)
1443                         strprompt("View which part (0 when done)", part, SIZ-1);
1444                 found = -found;
1445                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1446                         if ((!strcasecmp(ptr->disposition, "attachment")
1447                            || !strcasecmp(ptr->disposition, "inline"))
1448                            && !strncmp(ptr->mimetype, "image/", 6)
1449                            && !strcasecmp(ptr->number, part)) {
1450                                 char tmp[PATH_MAX];
1451                                 char buf[SIZ];
1452                                 void *file = NULL; /* The downloaded file */
1453                                 int r;
1454
1455                                 /* view image */
1456                                 found = -found;
1457                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1458                                 if (r / 100 != 2) {
1459                                         scr_printf("%s\n", buf);
1460                                 } else {
1461                                         size_t len;
1462
1463                                         len = (size_t)extract_long(buf, 0);
1464                                         progress(ipc, len, len);
1465                                         scr_flush();
1466                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1467                                         strcat(tmp, ptr->filename);
1468                                         save_buffer(file, len, tmp);
1469                                         free(file);
1470                                         do_image_view(tmp);
1471                                 }
1472                                 break;
1473                         }
1474                 }
1475                 if (found == 1)
1476                         break;
1477         }
1478 }
1479
1480
1481 /*
1482  * Read the messages in the current room
1483  */
1484 void readmsgs(CtdlIPC *ipc,
1485         enum MessageList c,             /* see listing in citadel_ipc.h */
1486         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1487         int q           /* Number of msgs to read (if c==3) */
1488 ) {
1489         int a, b, e, f, g, start;
1490         int savedpos;
1491         int hold_sw = 0;
1492         char arcflag = 0;
1493         char quotflag = 0;
1494         int hold_color = 0;
1495         char prtfile[PATH_MAX];
1496         char pagin;
1497         char cmd[SIZ];
1498         char targ[ROOMNAMELEN];
1499         char filename[PATH_MAX];
1500         char save_to[PATH_MAX];
1501         void *attachment = NULL;        /* Downloaded attachment */
1502         FILE *dest = NULL;              /* Alternate destination other than screen */
1503         int r;                          /* IPC response code */
1504         static int att_seq = 0;         /* Attachment download sequence number */
1505
1506         if (c < 0)
1507                 b = (num_msgs - 1);
1508         else
1509                 b = 0;
1510
1511         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1512
1513         if (msg_arr) {
1514                 free(msg_arr);
1515                 msg_arr = NULL;
1516         }
1517         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1518         if (r / 100 != 1) {
1519                 scr_printf("%s\n", cmd);
1520         } else {
1521                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1522                         ;
1523         }
1524
1525         if (num_msgs == 0) {    /* TODO look at this later */
1526                 if (c == LastMessages) return;
1527                 scr_printf("*** There are no ");
1528                 if (c == NewMessages) scr_printf("new ");
1529                 if (c == OldMessages) scr_printf("old ");
1530                 scr_printf("messages in this room.\n");
1531                 return;
1532         }
1533
1534         lines_printed = 0;
1535
1536         /* this loop cycles through each message... */
1537         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1538         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1539                 while (msg_arr[a] == 0L) {
1540                         a = a + rdir;
1541                         if ((a == num_msgs) || (a == (-1)))
1542                                 return;
1543                 }
1544
1545 RAGAIN:         pagin = ((arcflag == 0)
1546                          && (quotflag == 0)
1547                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1548
1549                 /* If we're doing a quote, set the screenwidth to 72 */
1550                 if (quotflag) {
1551                         hold_sw = screenwidth;
1552                         screenwidth = 72;
1553                 }
1554
1555                 /* If printing or archiving, set the screenwidth to 80 */
1556                 if (arcflag) {
1557                         hold_sw = screenwidth;
1558                         screenwidth = 80;
1559                 }
1560
1561                 /* clear parts list */
1562                 free_parts(last_message_parts);
1563                 last_message_parts = NULL;
1564
1565                 /* now read the message... */
1566                 e = read_message(ipc, msg_arr[a], pagin, dest);
1567
1568                 /* ...and set the screenwidth back if we have to */
1569                 if ((quotflag) || (arcflag)) {
1570                         screenwidth = hold_sw;
1571                 }
1572 RMSGREAD:       scr_flush();
1573                 highest_msg_read = msg_arr[a];
1574                 if (quotflag) {
1575                         fclose(dest);
1576                         dest = NULL;
1577                         quotflag = 0;
1578                         enable_color = hold_color;
1579                         process_quote();
1580                         e = 'r';
1581                         goto DONE_QUOTING;
1582                 }
1583                 if (arcflag) {
1584                         fclose(dest);
1585                         dest = NULL;
1586                         arcflag = 0;
1587                         enable_color = hold_color;
1588                         f = fork();
1589                         if (f == 0) {
1590                                 freopen(prtfile, "r", stdin);
1591                                 screen_reset();
1592                                 stty_ctdl(SB_RESTORE);
1593                                 ka_system(printcmd);
1594                                 stty_ctdl(SB_NO_INTR);
1595                                 screen_set();
1596                                 unlink(prtfile);
1597                                 exit(0);
1598                         }
1599                         if (f > 0)
1600                                 do {
1601                                         g = wait(NULL);
1602                                 } while ((g != f) && (g >= 0));
1603                         scr_printf("Message printed.\n");
1604                 }
1605                 if (rc_alt_semantics && c == 1) {
1606                         char buf[SIZ];
1607
1608                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1609                 }
1610                 if (e == SIGQUIT)
1611                         return;
1612                 if (((userflags & US_NOPROMPT) || (e == SIGINT))
1613                         && (((room_flags & QR_MAILBOX) == 0)
1614                         || (rc_force_mail_prompts == 0))) {
1615                         e = 'n';
1616                 } else {
1617                         color(DIM_WHITE);
1618                         scr_printf("(");
1619                         color(BRIGHT_WHITE);
1620                         scr_printf("%d", num_msgs - a - 1);
1621                         color(DIM_WHITE);
1622                         scr_printf(") ");
1623
1624                         keyopt("<B>ack <A>gain <R>eply reply<Q>uoted <N>ext <S>top ");
1625                         if (rc_url_cmd[0] && num_urls)
1626                                 keyopt("<U>RLview ");
1627                         if (has_images > 0 && !IsEmptyStr(imagecmd))
1628                                 keyopt("<I>mages ");
1629                         keyopt("<?>help -> ");
1630
1631                         do {
1632                                 lines_printed = 2;
1633                                 e = (inkey() & 127);
1634                                 e = tolower(e);
1635 /* return key same as <N> */ if (e == 10)
1636                                         e = 'n';
1637 /* space key same as <N> */ if (e == 32)
1638                                         e = 'n';
1639 /* del/move for aides only */
1640                                     if (  (!is_room_aide)
1641                                        && ((room_flags & QR_MAILBOX) == 0)
1642                                        && ((room_flags2 & QR2_COLLABDEL) == 0)
1643                                        ) {
1644                                         if ((e == 'd') || (e == 'm'))
1645                                                 e = 0;
1646                                 }
1647 /* print only if available */
1648                                 if ((e == 'p') && (IsEmptyStr(printcmd)))
1649                                         e = 0;
1650 /* can't file if not allowed */
1651                                     if ((e == 'f')
1652                                         && (rc_allow_attachments == 0))
1653                                         e = 0;
1654 /* link only if browser avail*/
1655                                     if ((e == 'u')
1656                                         && (IsEmptyStr(rc_url_cmd)))
1657                                         e = 0;
1658                                 if ((e == 'i')
1659                                         && (IsEmptyStr(imagecmd) || !has_images))
1660                                         e = 0;
1661                         } while ((e != 'a') && (e != 'n') && (e != 's')
1662                                  && (e != 'd') && (e != 'm') && (e != 'p')
1663                                  && (e != 'q') && (e != 'b') && (e != 'h')
1664                                  && (e != 'r') && (e != 'f') && (e != '?')
1665                                  && (e != 'u') && (e != 'c') && (e != 'y')
1666                                  && (e != 'i') && (e != 'o') );
1667                         switch (e) {
1668                         case 's':
1669                                 scr_printf("Stop");
1670                                 break;
1671                         case 'a':
1672                                 scr_printf("Again");
1673                                 break;
1674                         case 'd':
1675                                 scr_printf("Delete");
1676                                 break;
1677                         case 'm':
1678                                 scr_printf("Move");
1679                                 break;
1680                         case 'c':
1681                                 scr_printf("Copy");
1682                                 break;
1683                         case 'n':
1684                                 scr_printf("Next");
1685                                 break;
1686                         case 'p':
1687                                 scr_printf("Print");
1688                                 break;
1689                         case 'q':
1690                                 scr_printf("reply Quoted");
1691                                 break;
1692                         case 'b':
1693                                 scr_printf("Back");
1694                                 break;
1695                         case 'h':
1696                                 scr_printf("Header");
1697                                 break;
1698                         case 'r':
1699                                 scr_printf("Reply");
1700                                 break;
1701                         case 'o':
1702                                 scr_printf("Open attachments");
1703                                 break;
1704                         case 'f':
1705                                 scr_printf("File");
1706                                 break;
1707                         case 'u':
1708                                 scr_printf("URL's");
1709                                 break;
1710                         case 'y':
1711                                 scr_printf("mY next");
1712                                 break;
1713                         case 'i':
1714                                 break;
1715                         case '?':
1716                                 scr_printf("? <help>");
1717                                 break;
1718                         }
1719                         if (userflags & US_DISAPPEAR || e == 'i')
1720                                 scr_printf("\r%79s\r", "");
1721                         else
1722                                 scr_printf("\n");
1723                         scr_flush();
1724                 }
1725 DONE_QUOTING:   switch (e) {
1726                 case '?':
1727                         scr_printf("Options available here:\n"
1728                                 " ?  Help (prints this message)\n"
1729                                 " S  Stop reading immediately\n"
1730                                 " A  Again (repeats last message)\n"
1731                                 " N  Next (continue with next message)\n"
1732                                 " Y  My Next (continue with next message you authored)\n"
1733                                 " B  Back (go back to previous message)\n");
1734                         if (  (is_room_aide)
1735                            || (room_flags & QR_MAILBOX)
1736                            || (room_flags2 & QR2_COLLABDEL)
1737                         ) {
1738                                 scr_printf(" D  Delete this message\n"
1739                                         " M  Move message to another room\n");
1740                         }
1741                         scr_printf(" C  Copy message to another room\n");
1742                         if (!IsEmptyStr(printcmd))
1743                                 scr_printf(" P  Print this message\n");
1744                         scr_printf(
1745                                 " Q  Reply to this message, quoting portions of it\n"
1746                                 " H  Headers (display message headers only)\n");
1747                         if (is_mail)
1748                                 scr_printf(" R  Reply to this message\n");
1749                         if (rc_allow_attachments) {
1750                                 scr_printf(" O  (Open attachments)\n");
1751                                 scr_printf(" F  (save attachments to a File)\n");
1752                         }
1753                         if (!IsEmptyStr(rc_url_cmd))
1754                                 scr_printf(" U  (list URL's for display)\n");
1755                         if (!IsEmptyStr(imagecmd) && has_images > 0)
1756                                 scr_printf(" I  Image viewer\n");
1757                         scr_printf("\n");
1758                         goto RMSGREAD;
1759                 case 'p':
1760                         scr_flush();
1761                         dest = fopen(prtfile, "w");
1762                         arcflag = 1;
1763                         hold_color = enable_color;
1764                         enable_color = 0;
1765                         goto RAGAIN;
1766                 case 'q':
1767                         scr_flush();
1768                         dest = fopen(temp2, "w");
1769                         quotflag = 1;
1770                         hold_color = enable_color;
1771                         enable_color = 0;
1772                         goto RAGAIN;
1773                 case 's':
1774                         return;
1775                 case 'a':
1776                         goto RAGAIN;
1777                 case 'b':
1778                         a = a - (rdir * 2);
1779                         break;
1780                 case 'm':
1781                 case 'c':
1782                         newprompt("Enter target room: ",
1783                                   targ, ROOMNAMELEN - 1);
1784                         if (!IsEmptyStr(targ)) {
1785                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1786                                                        msg_arr[a], targ, cmd);
1787                                 scr_printf("%s\n", cmd);
1788                                 if (r / 100 == 2)
1789                                         msg_arr[a] = 0L;
1790                         } else {
1791                                 goto RMSGREAD;
1792                         }
1793                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1794                                 goto RMSGREAD;  /* the logic here sucks */
1795                         break;
1796                 case 'o':
1797                 case 'f':
1798                         newprompt("Which section? ", filename, ((sizeof filename) - 1));
1799                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1800                                         filename, &attachment, progress, cmd);
1801                         if (r / 100 != 2) {
1802                                 scr_printf("%s\n", cmd);
1803                         } else {
1804                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1805                                 /*
1806                                  * Part 1 won't have a filename; use the
1807                                  * subject of the message instead. IO
1808                                  */
1809                                 if (IsEmptyStr(filename)) {
1810                                         strcpy(filename, reply_subject);
1811                                 }
1812                                 if (e == 'o') {         /* open attachment */
1813                                         mkdir(tempdir, 0700);
1814                                         snprintf(save_to, sizeof save_to, "%s/%04x.%s",
1815                                                 tempdir,
1816                                                 ++att_seq,
1817                                                 filename);
1818                                         save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1819                                         snprintf(cmd, sizeof cmd, rc_open_cmd, save_to);
1820                                         system(cmd);
1821                                 }
1822                                 else {                  /* save attachment to disk */
1823                                         destination_directory(save_to, filename);
1824                                         save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1825                                 }
1826                         }
1827                         if (attachment) {
1828                                 free(attachment);
1829                                 attachment = NULL;
1830                         }
1831                         goto RMSGREAD;
1832                 case 'd':
1833                         scr_printf("*** Delete this message? ");
1834                         if (yesno() == 1) {
1835                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1836                                 scr_printf("%s\n", cmd);
1837                                 if (r / 100 == 2)
1838                                         msg_arr[a] = 0L;
1839                         } else {
1840                                 goto RMSGREAD;
1841                         }
1842                         break;
1843                 case 'h':
1844                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1845                         goto RMSGREAD;
1846                 case 'r':
1847                         savedpos = num_msgs;
1848                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1849                         num_msgs = savedpos;
1850                         goto RMSGREAD;
1851                 case 'u':
1852                         list_urls(ipc);
1853                         goto RMSGREAD;
1854                 case 'i':
1855                         image_view(ipc, msg_arr[a]);
1856                         goto RMSGREAD;
1857             case 'y':
1858           { /* hack hack hack */
1859             /* find the next message by me, stay here if we find nothing */
1860             int finda;
1861             int lasta = a;
1862             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1863               {
1864                 /* This is repetitively dumb, but that's what computers are for.
1865                    We have to load up messages until we find one by us */
1866                 char buf[SIZ];
1867                 int founda = 0;
1868                 struct ctdlipcmessage *msg = NULL;
1869
1870                 /* read the header so we can get 'from=' */
1871                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1872                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1873                         a = lasta; /* meesa current */
1874                         founda = 1;
1875                 }
1876
1877                 free(msg);
1878
1879                 if (founda)
1880                         break; /* for */
1881                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1882               } /* for */
1883           } /* case 'y' */
1884       } /* switch */
1885         }                       /* end for loop */
1886 }                               /* end read routine */
1887
1888
1889
1890
1891 /*
1892  * View and edit a system message
1893  */
1894 void edit_system_message(CtdlIPC *ipc, char *which_message)
1895 {
1896         char desc[SIZ];
1897         char read_cmd[SIZ];
1898         char write_cmd[SIZ];
1899
1900         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1901         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1902         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1903         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1904 }
1905
1906
1907
1908
1909 /*
1910  * Verify the message base
1911  */
1912 void check_message_base(CtdlIPC *ipc)
1913 {
1914         char buf[SIZ];
1915         char *transcript = NULL;
1916         int r;          /* IPC response code */
1917
1918         scr_printf
1919             ("Please read the documentation before running this command.\n"
1920             "Having done so, do you still want to check the message base? ");
1921         if (yesno() == 0)
1922                 return;
1923
1924         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1925         if (r / 100 != 1) {
1926                 scr_printf("%s\n", buf);
1927                 return;
1928         }
1929
1930         while (transcript && !IsEmptyStr(transcript)) {
1931                 lines_printed = 1;
1932                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1933                 remove_token(transcript, 0, '\n');
1934                 pprintf("%s\n", buf);
1935         }
1936         if (transcript) free(transcript);
1937         return;
1938 }
1939
1940
1941 /*
1942  * Loads the contents of a file into memory.  Caller must free the allocated
1943  * memory.
1944  */
1945 char *load_message_from_file(FILE *src)
1946 {
1947         size_t i;
1948         size_t got = 0;
1949         char *dest = NULL;
1950
1951         fseek(src, 0, SEEK_END);
1952         i = ftell(src);
1953         rewind(src);
1954
1955         dest = (char *)calloc(1, i + 1);
1956         if (!dest)
1957                 return NULL;
1958
1959         while (got < i) {
1960                 size_t g;
1961
1962                 g = fread(dest + got, 1, i - got, src);
1963                 got += g;
1964                 if (g < i - got) {
1965                         /* Interrupted system call, keep going */
1966                         if (errno == EINTR)
1967                                 continue;
1968                         /* At this point we have either EOF or error */
1969                         i = got;
1970                         break;
1971                 }
1972                 dest[i] = 0;
1973         }
1974
1975         return dest;
1976 }