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 unsigned room_flags2;
  75 extern long highest_msg_read;
  76 extern char temp[];
  77 extern char temp2[];
  78 extern int screenwidth;
  79 extern int screenheight;
  80 extern long maxmsgnum;
  81 extern char is_mail;
  82 extern char is_aide;
  83 extern char is_room_aide;
  84 extern char fullname[];
  85 extern char axlevel;
  86 extern unsigned userflags;
  87 extern char sigcaught;
  88 extern char printcmd[];
  89 extern int rc_allow_attachments;
  90 extern int rc_display_message_numbers;
  91 extern int rc_force_mail_prompts;
  92 extern int editor_pid;
  93 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  94 int num_urls = 0;
  95 char urls[MAXURLS][SIZ];
  96 char imagecmd[SIZ];
  97 int has_images = 0;                             /* Current msg has images */
  98 struct parts *last_message_parts = NULL;        /* Parts from last msg */
  99
 100
 101
 102 void ka_sigcatch(int signum)
 103 {
 104         alarm(S_KEEPALIVE);
 105         signal(SIGALRM, ka_sigcatch);
 106         CtdlIPCNoop(ipc_for_signal_handlers);
 107 }
 108
 109
 110 /*
 111  * server keep-alive version of wait() (needed for external editor)
 112  */
 113 pid_t ka_wait(int *kstatus)
 114 {
 115         pid_t p;
 116
 117         alarm(S_KEEPALIVE);
 118         signal(SIGALRM, ka_sigcatch);
 119         do {
 120                 errno = 0;
 121                 p = wait(kstatus);
 122         } while (errno == EINTR);
 123         signal(SIGALRM, SIG_IGN);
 124         alarm(0);
 125         return (p);
 126 }
 127
 128
 129 /*
 130  * version of system() that uses ka_wait()
 131  */
 132 int ka_system(char *shc)
 133 {
 134         pid_t childpid;
 135         pid_t waitpid;
 136         int retcode;
 137
 138         childpid = fork();
 139         if (childpid < 0) {
 140                 color(BRIGHT_RED);
 141                 perror("Cannot fork");
 142                 color(DIM_WHITE);
 143                 return ((pid_t) childpid);
 144         }
 145
 146         if (childpid == 0) {
 147                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 148                 exit(127);
 149         }
 150
 151         if (childpid > 0) {
 152                 do {
 153                         waitpid = ka_wait(&retcode);
 154                 } while (waitpid != childpid);
 155                 return (retcode);
 156         }
 157
 158         return (-1);
 159 }
 160
 161
 162
 163 /*
 164  * add a newline to the buffer...
 165  */
 166 void add_newline(struct cittext *textlist)
 167 {
 168         struct cittext *ptr;
 169
 170         ptr = textlist;
 171         while (ptr->next != NULL)
 172                 ptr = ptr->next;
 173
 174         while (ptr->text[strlen(ptr->text) - 1] == 32)
 175                 ptr->text[strlen(ptr->text) - 1] = 0;
 176         /* strcat(ptr->text,"\n"); */
 177
 178         ptr->next = (struct cittext *)
 179             malloc(sizeof(struct cittext));
 180         ptr = ptr->next;
 181         ptr->next = NULL;
 182         strcpy(ptr->text, "");
 183 }
 184
 185
 186 /*
 187  * add a word to the buffer...
 188  */
 189 void add_word(struct cittext *textlist, char *wordbuf)
 190 {
 191         struct cittext *ptr;
 192
 193         ptr = textlist;
 194         while (ptr->next != NULL)
 195                 ptr = ptr->next;
 196
 197         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 198                 ptr->next = (struct cittext *)
 199                     malloc(sizeof(struct cittext));
 200                 ptr = ptr->next;
 201                 ptr->next = NULL;
 202                 strcpy(ptr->text, "");
 203         }
 204
 205         strcat(ptr->text, wordbuf);
 206         strcat(ptr->text, " ");
 207 }
 208
 209
 210 /*
 211  * begin editing of an opened file pointed to by fp
 212  */
 213 void citedit(CtdlIPC *ipc, FILE * fp)
 214 {
 215         int a, prev, finished, b, last_space;
 216         int appending = 0;
 217         struct cittext *textlist = NULL;
 218         struct cittext *ptr;
 219         char wordbuf[MAXWORDBUF];
 220
 221         /* first, load the text into the buffer */
 222         fseek(fp, 0L, 0);
 223         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 224         textlist->next = NULL;
 225         strcpy(textlist->text, "");
 226
 227         strcpy(wordbuf, "");
 228         prev = (-1);
 229         while (a = getc(fp), a >= 0) {
 230                 appending = 1;
 231                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 232                         add_word(textlist, wordbuf);
 233                         strcpy(wordbuf, "");
 234                         if ((prev == 13) || (prev == 10)) {
 235                                 add_word(textlist, "\n");
 236                                 add_newline(textlist);
 237                                 add_word(textlist, "");
 238                         }
 239                 } else {
 240                         wordbuf[strlen(wordbuf) + 1] = 0;
 241                         wordbuf[strlen(wordbuf)] = a;
 242                 }
 243                 if (strlen(wordbuf) + 3 > screenwidth) {
 244                         add_word(textlist, wordbuf);
 245                         strcpy(wordbuf, "");
 246                 }
 247                 prev = a;
 248         }
 249
 250         /* get text */
 251         finished = 0;
 252         prev = (appending ? 13 : (-1));
 253         strcpy(wordbuf, "");
 254         async_ka_start();
 255         do {
 256                 a = inkey();
 257                 if (a == 10)
 258                         a = 13;
 259                 if (a == 9)
 260                         a = 32;
 261                 if (a == 127)
 262                         a = 8;
 263
 264                 if ((a != 32) && (prev == 13)) {
 265                         add_word(textlist, "\n");
 266                         scr_printf(" ");
 267                 }
 268
 269                 if ((a == 32) && (prev == 13)) {
 270                         add_word(textlist, "\n");
 271                         add_newline(textlist);
 272                 }
 273
 274                 if (a == 8) {
 275                         if (!IsEmptyStr(wordbuf)) {
 276                                 wordbuf[strlen(wordbuf) - 1] = 0;
 277                                 scr_putc(8);
 278                                 scr_putc(32);
 279                                 scr_putc(8);
 280                         }
 281                 } else if (a == 23) {
 282                         do {
 283                                 wordbuf[strlen(wordbuf) - 1] = 0;
 284                                 scr_putc(8);
 285                                 scr_putc(32);
 286                                 scr_putc(8);
 287                         } while (!IsEmptyStr(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 288                 } else if (a == 13) {
 289                         scr_printf("\n");
 290                         if (IsEmptyStr(wordbuf))
 291                                 finished = 1;
 292                         else {
 293                                 for (b = 0; b < strlen(wordbuf); ++b)
 294                                         if (wordbuf[b] == 32) {
 295                                                 wordbuf[b] = 0;
 296                                                 add_word(textlist,
 297                                                          wordbuf);
 298                                                 strcpy(wordbuf,
 299                                                        &wordbuf[b + 1]);
 300                                                 b = 0;
 301                                         }
 302                                 add_word(textlist, wordbuf);
 303                                 strcpy(wordbuf, "");
 304                         }
 305                 } else {
 306                         scr_putc(a);
 307                         wordbuf[strlen(wordbuf) + 1] = 0;
 308                         wordbuf[strlen(wordbuf)] = a;
 309                 }
 310                 if ((strlen(wordbuf) + 3) > screenwidth) {
 311                         last_space = (-1);
 312                         for (b = 0; b < strlen(wordbuf); ++b)
 313                                 if (wordbuf[b] == 32)
 314                                         last_space = b;
 315                         if (last_space >= 0) {
 316                                 for (b = 0; b < strlen(wordbuf); ++b)
 317                                         if (wordbuf[b] == 32) {
 318                                                 wordbuf[b] = 0;
 319                                                 add_word(textlist,
 320                                                          wordbuf);
 321                                                 strcpy(wordbuf,
 322                                                        &wordbuf[b + 1]);
 323                                                 b = 0;
 324                                         }
 325                                 for (b = 0; b < strlen(wordbuf); ++b) {
 326                                         scr_putc(8);
 327                                         scr_putc(32);
 328                                         scr_putc(8);
 329                                 }
 330                                 scr_printf("\n%s", wordbuf);
 331                         } else {
 332                                 add_word(textlist, wordbuf);
 333                                 strcpy(wordbuf, "");
 334                                 scr_printf("\n");
 335                         }
 336                 }
 337                 prev = a;
 338         } while (finished == 0);
 339         async_ka_end();
 340
 341         /* write the buffer back to disk */
 342         fseek(fp, 0L, 0);
 343         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 344                 fprintf(fp, "%s", ptr->text);
 345         }
 346         putc(10, fp);
 347         fflush(fp);
 348         ftruncate(fileno(fp), ftell(fp));
 349
 350         /* and deallocate the memory we used */
 351         while (textlist != NULL) {
 352                 ptr = textlist->next;
 353                 free(textlist);
 354                 textlist = ptr;
 355         }
 356 }
 357
 358
 359 /*
 360  * Free the struct parts
 361  */
 362 void free_parts(struct parts *p)
 363 {
 364         struct parts *a_part = p;
 365
 366         while (a_part) {
 367                 struct parts *q;
 368
 369                 q = a_part;
 370                 a_part = a_part->next;
 371                 free(q);
 372         }
 373 }
 374
 375
 376 /*
 377  * Read a message from the server
 378  */
 379 int read_message(CtdlIPC *ipc,
 380         long num,   /* message number */
 381         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 382         FILE *dest) /* Destination file, NULL for screen */
 383 {
 384         char buf[SIZ];
 385         char now[SIZ];
 386         int format_type = 0;
 387         int fr = 0;
 388         int nhdr = 0;
 389         struct ctdlipcmessage *message = NULL;
 390         int r;                          /* IPC response code */
 391         char *converted_text = NULL;
 392         char *lineptr;
 393         char *nextline;
 394         char *searchptr;
 395         int i;
 396         char ch;
 397         int linelen;
 398         int final_line_is_blank = 0;
 399
 400         has_images = 0;
 401
 402         sigcaught = 0;
 403         stty_ctdl(1);
 404
 405         strcpy(reply_to, NO_REPLY_TO);
 406         strcpy(reply_subject, "");
 407
 408         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 409                                 (can_do_msg4 ? 4 : 0),
 410                                 &message, buf);
 411         if (r / 100 != 1) {
 412                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 413                 ++lines_printed;
 414                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 415                 stty_ctdl(0);
 416                 free(message->text);
 417                 free_parts(message->attachments);
 418                 free(message);
 419                 return (0);
 420         }
 421
 422         if (dest) {
 423                 fprintf(dest, "\n ");
 424         } else {
 425                 scr_printf("\n");
 426                 ++lines_printed;
 427                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 428                 if (pagin != 2)
 429                         scr_printf(" ");
 430         }
 431         if (pagin == 1 && !dest) {
 432                 color(BRIGHT_CYAN);
 433         }
 434
 435         /* View headers only */
 436         if (pagin == 2) {
 437                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 438                                 message->nhdr ? "yes" : "no",
 439                                 message->author, message->type,
 440                                 message->msgid);
 441                 if (!IsEmptyStr(message->subject)) {
 442                         pprintf("subj=%s\n", message->subject);
 443                 }
 444                 if (!IsEmptyStr(message->email)) {
 445                         pprintf("rfca=%s\n", message->email);
 446                 }
 447                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 448                                 message->hnod, message->room,
 449                                 message->node,
 450                                 asctime(localtime(&message->time)));
 451                 if (!IsEmptyStr(message->recipient)) {
 452                         pprintf("rcpt=%s\n", message->recipient);
 453                 }
 454                 if (message->attachments) {
 455                         struct parts *ptr;
 456
 457                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 458                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 459                                         ptr->name, ptr->filename, ptr->number,
 460                                         ptr->disposition, ptr->mimetype,
 461                                         ptr->length);
 462                         }
 463                 }
 464                 pprintf("\n");
 465                 stty_ctdl(0);
 466                 free(message->text);
 467                 free_parts(message->attachments);
 468                 free(message);
 469                 return (0);
 470         }
 471
 472         if (rc_display_message_numbers) {
 473                 if (dest) {
 474                         fprintf(dest, "[#%s] ", message->msgid);
 475                 } else {
 476                         color(DIM_WHITE);
 477                         scr_printf("[");
 478                         color(BRIGHT_WHITE);
 479                         scr_printf("#%s", message->msgid);
 480                         color(DIM_WHITE);
 481                         scr_printf("] ");
 482                 }
 483         }
 484         if (nhdr == 1 && !is_room_aide) {
 485                 if (dest) {
 486                         fprintf(dest, " ****");
 487                 } else {
 488                         scr_printf(" ****");
 489                 }
 490         } else {
 491                 fmt_date(now, sizeof now, message->time, 0);
 492                 if (dest) {
 493                         fprintf(dest, "%s from %s ", now, message->author);
 494                         if (!IsEmptyStr(message->email)) {
 495                                 fprintf(dest, "<%s> ", message->email);
 496                         }
 497                 } else {
 498                         color(BRIGHT_CYAN);
 499                         scr_printf("%s ", now);
 500                         color(DIM_WHITE);
 501                         scr_printf("from ");
 502                         color(BRIGHT_CYAN);
 503                         scr_printf("%s ", message->author);
 504                         if (!IsEmptyStr(message->email)) {
 505                                 color(DIM_WHITE);
 506                                 scr_printf("<");
 507                                 color(BRIGHT_BLUE);
 508                                 scr_printf("%s", message->email);
 509                                         color(DIM_WHITE);
 510                                 scr_printf("> ");
 511                         }
 512                 }
 513                 if (!IsEmptyStr(message->node)) {
 514                         if ((room_flags & QR_NETWORK)
 515                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 516                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 517                                 if (IsEmptyStr(message->email)) {
 518                                         if (dest) {
 519                                                 fprintf(dest, "@%s ", message->node);
 520                                         } else {
 521                                                 color(DIM_WHITE);
 522                                                 scr_printf("@");
 523                                                 color(BRIGHT_YELLOW);
 524                                                 scr_printf("%s ", message->node);
 525                                         }
 526                                 }
 527                         }
 528                 }
 529                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 530                     && (!IsEmptyStr(message->hnod)) && (IsEmptyStr(message->email))) {
 531                         if (dest) {
 532                                 fprintf(dest, "(%s) ", message->hnod);
 533                         } else {
 534                                 color(DIM_WHITE);
 535                                 scr_printf("(");
 536                                 color(BRIGHT_WHITE);
 537                                 scr_printf("%s", message->hnod);
 538                                 color(DIM_WHITE);
 539                                 scr_printf(") ");
 540                         }
 541                 }
 542                 if (strcasecmp(message->room, room_name) && (IsEmptyStr(message->email))) {
 543                         if (dest) {
 544                                 fprintf(dest, "in %s> ", message->room);
 545                         } else {
 546                                 color(DIM_WHITE);
 547                                 scr_printf("in ");
 548                                 color(BRIGHT_MAGENTA);
 549                                 scr_printf("%s> ", message->room);
 550                         }
 551                 }
 552                 if (!IsEmptyStr(message->recipient)) {
 553                         if (dest) {
 554                                 fprintf(dest, "to %s ", message->recipient);
 555                         } else {
 556                                 color(DIM_WHITE);
 557                                 scr_printf("to ");
 558                                 color(BRIGHT_CYAN);
 559                                 scr_printf("%s ", message->recipient);
 560                         }
 561                 }
 562         }
 563
 564         if (dest) {
 565                 fprintf(dest, "\n");
 566         } else {
 567                 scr_printf("\n");
 568         }
 569
 570         /* Set the reply-to address to an Internet e-mail address if possible
 571          */
 572         if (message->email != NULL) if (!IsEmptyStr(message->email)) {
 573                 if (!IsEmptyStr(message->author)) {
 574                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 575                 }
 576                 else {
 577                         safestrncpy(reply_to, message->email, sizeof reply_to);
 578                 }
 579         }
 580
 581         /* But if we can't do that, set it to a Citadel address.
 582          */
 583         if (!strcmp(reply_to, NO_REPLY_TO)) {
 584                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 585                          message->author, message->node);
 586         }
 587
 588         if (!dest) {
 589                 ++lines_printed;
 590                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 591         }
 592
 593         if (message->subject != NULL) {
 594                 safestrncpy(reply_subject, message->subject,
 595                                                 sizeof reply_subject);
 596                 if (!IsEmptyStr(message->subject)) {
 597                         if (dest) {
 598                                 fprintf(dest, "Subject: %s\n",
 599                                                         message->subject);
 600                         } else {
 601                                 color(DIM_WHITE);
 602                                 scr_printf("Subject: ");
 603                                 color(BRIGHT_CYAN);
 604                                 scr_printf("%s\n", message->subject);
 605                                 ++lines_printed;
 606                                 lines_printed = checkpagin(lines_printed,
 607                                                 pagin, screenheight);
 608                         }
 609                 }
 610         }
 611
 612         if (pagin == 1 && !dest) {
 613                 color(BRIGHT_WHITE);
 614         }
 615
 616         /******* end of header output, start of message text output *******/
 617
 618         /*
 619          * Convert HTML to plain text, formatting for the actual width
 620          * of the client screen.
 621          */
 622         if (!strcasecmp(message->content_type, "text/html")) {
 623                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 624                 if (converted_text != NULL) {
 625                         free(message->text);
 626                         message->text = converted_text;
 627                         format_type = 1;
 628                 }
 629         }
 630
 631         /* Text/plain is a different type */
 632         if (!strcasecmp(message->content_type, "text/plain")) {
 633                 format_type = 1;
 634         }
 635
 636         /* Extract URL's */
 637         num_urls = 0;   /* Start with a clean slate */
 638         searchptr = message->text;
 639         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 640                 searchptr = strstr(searchptr, "http://");
 641                 if (searchptr != NULL) {
 642                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 643                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 644                                 ch = urls[num_urls][i];
 645                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 646                                     ch == ' ' || ch == '\n') {
 647                                         urls[num_urls][i] = 0;
 648                                         break;
 649                                 }
 650                         }
 651                         num_urls++;
 652                         ++searchptr;
 653                 }
 654         }
 655
 656         /*
 657          * Here we go
 658          */
 659         if (format_type == 0) {
 660                 fr = fmout(screenwidth, NULL, message->text, dest,
 661                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 662         } else {
 663                 /* renderer for text/plain */
 664
 665                 lineptr = message->text;
 666
 667                 do {
 668                         nextline = strchr(lineptr, '\n');
 669                         if (nextline != NULL) {
 670                                 *nextline = 0;
 671                                 ++nextline;
 672                                 if (*nextline == 0) nextline = NULL;
 673                         }
 674
 675                         if (sigcaught == 0) {
 676                                 linelen = strlen(lineptr);
 677                                 if (linelen && (lineptr[linelen-1] == '\r')) {
 678                                         lineptr[--linelen] = 0;
 679                                 }
 680                                 if (dest) {
 681                                         fprintf(dest, "%s\n", lineptr);
 682                                 } else {
 683                                         scr_printf("%s\n", lineptr);
 684                                         lines_printed = lines_printed + 1 +
 685                                             (linelen / screenwidth);
 686                                         lines_printed =
 687                                             checkpagin(lines_printed, pagin,
 688                                                        screenheight);
 689                                 }
 690                         }
 691                         if (lineptr[0] == 0) final_line_is_blank = 1;
 692                         else final_line_is_blank = 0;
 693                         lineptr = nextline;
 694                 } while (nextline);
 695                 fr = sigcaught;
 696         }
 697         if (!final_line_is_blank) {
 698                 if (dest) {
 699                         fprintf(dest, "\n");
 700                 }
 701                 else {
 702                         scr_printf("\n");
 703                         ++lines_printed;
 704                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 705                         fr = sigcaught;
 706                 }
 707         }
 708
 709         /* Enumerate any attachments */
 710         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 711                 struct parts *ptr;
 712
 713                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 714                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 715                            || (!strcasecmp(ptr->disposition, "inline"))
 716                            || (!strcasecmp(ptr->disposition, ""))
 717                         ) {
 718                                 if ( (strcasecmp(ptr->number, message->mime_chosen))
 719                                    && (!IsEmptyStr(ptr->mimetype))
 720                                 ) {
 721                                         color(DIM_WHITE);
 722                                         pprintf("Part ");
 723                                         color(BRIGHT_MAGENTA);
 724                                         pprintf("%s", ptr->number);
 725                                         color(DIM_WHITE);
 726                                         pprintf(": ");
 727                                         color(BRIGHT_CYAN);
 728                                         pprintf("%s", ptr->filename);
 729                                         color(DIM_WHITE);
 730                                         pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 731                                         if (!strncmp(ptr->mimetype, "image/", 6)) {
 732                                                 has_images++;
 733                                         }
 734                                 }
 735                         }
 736                 }
 737         }
 738
 739         /* Save the attachments info for later */
 740         last_message_parts = message->attachments;
 741
 742         /* Now we're done */
 743         free(message->text);
 744         free(message);
 745
 746         if (pagin == 1 && !dest)
 747                 color(DIM_WHITE);
 748         stty_ctdl(0);
 749         return (fr);
 750 }
 751
 752 /*
 753  * replace string function for the built-in editor
 754  */
 755 void replace_string(char *filename, long int startpos)
 756 {
 757         char buf[512];
 758         char srch_str[128];
 759         char rplc_str[128];
 760         FILE *fp;
 761         int a;
 762         long rpos, wpos;
 763         char *ptr;
 764         int substitutions = 0;
 765         long msglen = 0L;
 766
 767         scr_printf("Enter text to be replaced:\n: ");
 768         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 769         if (IsEmptyStr(srch_str))
 770                 return;
 771
 772         scr_printf("Enter text to replace it with:\n: ");
 773         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 774
 775         fp = fopen(filename, "r+");
 776         if (fp == NULL)
 777                 return;
 778
 779         wpos = startpos;
 780         fseek(fp, startpos, 0);
 781         strcpy(buf, "");
 782         while (a = getc(fp), a > 0) {
 783                 ++msglen;
 784                 buf[strlen(buf) + 1] = 0;
 785                 buf[strlen(buf)] = a;
 786                 if (strlen(buf) >= strlen(srch_str)) {
 787                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 788                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 789                                 strcpy(ptr, rplc_str);
 790                                 ++substitutions;
 791                         }
 792                 }
 793                 if (strlen(buf) > 384) {
 794                         rpos = ftell(fp);
 795                         fseek(fp, wpos, 0);
 796                         fwrite((char *) buf, 128, 1, fp);
 797                         strcpy(buf, &buf[128]);
 798                         wpos = ftell(fp);
 799                         fseek(fp, rpos, 0);
 800                 }
 801         }
 802         fseek(fp, wpos, 0);
 803         if (!IsEmptyStr(buf))
 804                 fwrite((char *) buf, strlen(buf), 1, fp);
 805         wpos = ftell(fp);
 806         fclose(fp);
 807         truncate(filename, wpos);
 808         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 809 }
 810
 811 /*
 812  * Function to begin composing a new message
 813  */
 814 int client_make_message(CtdlIPC *ipc,
 815                                                 char *filename,         /* temporary file name */
 816                                                 char *recipient,        /* NULL if it's not mail */
 817                                                 int is_anonymous,
 818                                                 int format_type,
 819                                                 int mode,
 820                                                 char *subject,          /* buffer to store subject line */
 821                                                 int subject_required)
 822 {
 823         FILE *fp;
 824         int a, b, e_ex_code;
 825         long beg;
 826         char datestr[SIZ];
 827         char header[SIZ];
 828         char *editor_path = NULL;
 829         int cksum = 0;
 830
 831         if (mode >= 2)
 832         {
 833                 if((mode-2) < MAX_EDITORS && !IsEmptyStr(editor_paths[mode-2])) {
 834                         editor_path = editor_paths[mode-2];
 835                 } else if (!IsEmptyStr(editor_paths[0])) {
 836                         editor_path = editor_paths[0];
 837                 } else {
 838                         err_printf("*** No editor available, "
 839                                 "using built-in editor\n");
 840                         mode = 0;
 841                 }
 842         }
 843
 844         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 845         header[0] = 0;
 846
 847         if (room_flags & QR_ANONONLY && !recipient) {
 848                 snprintf(header, sizeof header, " ****");
 849         }
 850         else {
 851                 snprintf(header, sizeof header,
 852                         " %s from %s",
 853                         datestr,
 854                         (is_anonymous ? "[anonymous]" : fullname)
 855                         );
 856                 if (!IsEmptyStr(recipient)) {
 857                         size_t tmp = strlen(header);
 858                         snprintf(&header[tmp], sizeof header - tmp,
 859                                 " to %s", recipient);
 860                 }
 861         }
 862         scr_printf("%s\n", header);
 863         if (subject != NULL) if (!IsEmptyStr(subject)) {
 864                 scr_printf("Subject: %s\n", subject);
 865         }
 866
 867         if ( (subject_required) && (IsEmptyStr(subject)) ) {
 868                 newprompt("Subject: ", subject, 70);
 869         }
 870
 871         beg = 0L;
 872
 873         if (mode == 1) {
 874                 scr_printf("(Press ctrl-d when finished)\n");
 875         }
 876
 877         if (mode == 0) {
 878                 fp = fopen(filename, "r");
 879                 if (fp != NULL) {
 880                         fmout(screenwidth, fp, NULL, NULL, 0,
 881                                 screenheight, 0, 0);
 882                         beg = ftell(fp);
 883                         fclose(fp);
 884                 } else {
 885                         fp = fopen(filename, "w");
 886                         if (fp == NULL) {
 887                                 err_printf("*** Error opening temp file!\n"
 888                                         "    %s: %s\n",
 889                                         filename, strerror(errno));
 890                         return(1);
 891                         }
 892                         fclose(fp);
 893                 }
 894         }
 895
 896 ME1:    switch (mode) {
 897
 898         case 0:
 899                 fp = fopen(filename, "r+");
 900                 if (fp == NULL) {
 901                         err_printf("*** Error opening temp file!\n"
 902                                 "    %s: %s\n",
 903                                 filename, strerror(errno));
 904                         return(1);
 905                 }
 906                 citedit(ipc, fp);
 907                 fclose(fp);
 908                 goto MECR;
 909
 910         case 1:
 911                 fp = fopen(filename, "a");
 912                 if (fp == NULL) {
 913                         err_printf("*** Error opening temp file!\n"
 914                                 "    %s: %s\n",
 915                                 filename, strerror(errno));
 916                         return(1);
 917                 }
 918                 do {
 919                         a = inkey();
 920                         if (a == 255)
 921                                 a = 32;
 922                         if (a == 13)
 923                                 a = 10;
 924                         if (a != 4) {
 925                                 putc(a, fp);
 926                                 scr_putc(a);
 927                         }
 928                         if (a == 10)
 929                                 scr_putc(10);
 930                 } while (a != 4);
 931                 fclose(fp);
 932                 break;
 933
 934         case 2:
 935         default:        /* allow 2+ modes */
 936                 e_ex_code = 1;  /* start with a failed exit code */
 937                 screen_reset();
 938                 stty_ctdl(SB_RESTORE);
 939                 editor_pid = fork();
 940                 cksum = file_checksum(filename);
 941                 if (editor_pid == 0) {
 942                         char tmp[SIZ];
 943
 944                         chmod(filename, 0600);
 945                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 946                         putenv(tmp);
 947                         execlp(editor_path, editor_path, filename, NULL);
 948                         exit(1);
 949                 }
 950                 if (editor_pid > 0)
 951                         do {
 952                                 e_ex_code = 0;
 953                                 b = ka_wait(&e_ex_code);
 954                         } while ((b != editor_pid) && (b >= 0));
 955                 editor_pid = (-1);
 956                 stty_ctdl(0);
 957                 screen_set();
 958                 break;
 959         }
 960
 961 MECR:   if (mode >= 2) {
 962                 if (file_checksum(filename) == cksum) {
 963                         err_printf("*** Aborted message.\n");
 964                         e_ex_code = 1;
 965                 }
 966                 if (e_ex_code == 0) {
 967                         goto MEFIN;
 968                 }
 969                 goto MEABT2;
 970         }
 971
 972         b = keymenu("Entry command (? for options)",
 973                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 974                     "add s<U>bject|"
 975                     "<R>eplace string|<H>old message");
 976
 977         if (b == 'a') goto MEABT;
 978         if (b == 'c') goto ME1;
 979         if (b == 's') goto MEFIN;
 980         if (b == 'p') {
 981                 scr_printf(" %s from %s", datestr, fullname);
 982                 if (!IsEmptyStr(recipient)) {
 983                         scr_printf(" to %s", recipient);
 984                 }
 985                 scr_printf("\n");
 986                 if (subject != NULL) if (!IsEmptyStr(subject)) {
 987                         scr_printf("Subject: %s\n", subject);
 988                 }
 989                 fp = fopen(filename, "r");
 990                 if (fp != NULL) {
 991                         fmout(screenwidth, fp, NULL, NULL,
 992                               ((userflags & US_PAGINATOR) ? 1 : 0),
 993                               screenheight, 0, 0);
 994                         beg = ftell(fp);
 995                         fclose(fp);
 996                 }
 997                 goto MECR;
 998         }
 999         if (b == 'r') {
1000                 replace_string(filename, 0L);
1001                 goto MECR;
1002         }
1003         if (b == 'h') {
1004                 return (2);
1005         }
1006         if (b == 'u') {
1007                 if (subject != NULL) {
1008                         newprompt("Subject: ", subject, 70);
1009                 }
1010                 goto MECR;
1011         }
1012
1013 MEFIN:  return (0);
1014
1015 MEABT:  scr_printf("Are you sure? ");
1016         if (yesno() == 0) {
1017                 goto ME1;
1018         }
1019 MEABT2: unlink(filename);
1020         return (2);
1021 }
1022
1023
1024 #if 0
1025 /*
1026  * Transmit message text to the server.
1027  *
1028  * This loop also implements a "tick" counter that displays the progress, if
1029  * we're sending something that will take a long time to transmit.
1030  */
1031 void transmit_message(CtdlIPC *ipc, FILE *fp)
1032 {
1033         char buf[SIZ];
1034         int ch, a;
1035         long msglen;
1036         time_t lasttick;
1037
1038         fseek(fp, 0L, SEEK_END);
1039         msglen = ftell(fp);
1040         rewind(fp);
1041         lasttick = time(NULL);
1042         strcpy(buf, "");
1043         while (ch = getc(fp), (ch >= 0)) {
1044                 if (ch == 10) {
1045                         if (!strcmp(buf, "000"))
1046                                 strcpy(buf, ">000");
1047                         CtdlIPC_putline(ipc, buf);
1048                         strcpy(buf, "");
1049                 } else {
1050                         a = strlen(buf);
1051                         buf[a + 1] = 0;
1052                         buf[a] = ch;
1053                         if ((ch == 32) && (strlen(buf) > 200)) {
1054                                 buf[a] = 0;
1055                                 if (!strcmp(buf, "000"))
1056                                         strcpy(buf, ">000");
1057                                 CtdlIPC_putline(ipc, buf);
1058                                 strcpy(buf, "");
1059                         }
1060                         if (strlen(buf) > 250) {
1061                                 if (!strcmp(buf, "000"))
1062                                         strcpy(buf, ">000");
1063                                 CtdlIPC_putline(ipc, buf);
1064                                 strcpy(buf, "");
1065                         }
1066                 }
1067
1068                 if ((time(NULL) - lasttick) > 2L) {
1069                         scr_printf(" %3ld%% completed\r",
1070                                ((ftell(fp) * 100L) / msglen));
1071                         scr_flush();
1072                         lasttick = time(NULL);
1073                 }
1074
1075         }
1076         CtdlIPC_putline(ipc, buf);
1077         scr_printf("                \r");
1078         scr_flush();
1079 }
1080 #endif
1081
1082
1083 /*
1084  * Make sure there's room in msg_arr[] for at least one more.
1085  */
1086 void check_msg_arr_size(void) {
1087         if ((num_msgs + 1) > msg_arr_size) {
1088                 msg_arr_size += 512;
1089                 msg_arr = realloc(msg_arr,
1090                         ((sizeof(long)) * msg_arr_size) );
1091         }
1092 }
1093
1094
1095 /*
1096  * break_big_lines()  -  break up lines that are >1024 characters
1097  *                       otherwise the server will truncate
1098  */
1099 void break_big_lines(char *msg) {
1100         char *ptr;
1101         char *break_here;
1102
1103         if (msg == NULL) {
1104                 return;
1105         }
1106
1107         ptr = msg;
1108         while (strlen(ptr) > 1000) {
1109                 break_here = strchr(&ptr[900], ' ');
1110                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1111                         break_here = &ptr[999];
1112                 }
1113                 *break_here = '\n';
1114                 ptr = break_here++;
1115         }
1116 }
1117
1118
1119 /*
1120  * entmsg()  -  edit and create a message
1121  *              returns 0 if message was saved
1122  */
1123 int entmsg(CtdlIPC *ipc,
1124                 int is_reply,   /* nonzero if this was a <R>eply command */
1125                 int c,          /* mode */
1126                 int masquerade  /* prompt for a non-default display name? */
1127 ) {
1128         char buf[SIZ];
1129         int a, b;
1130         int need_recp = 0;
1131         int mode;
1132         long highmsg = 0L;
1133         FILE *fp;
1134         char subject[SIZ];
1135         struct ctdlipcmessage message;
1136         unsigned long *msgarr = NULL;
1137         int r;                  /* IPC response code */
1138         int subject_required = 0;
1139
1140         if (c > 0)
1141                 mode = 1;
1142         else
1143                 mode = 0;
1144
1145         strcpy(subject, "");
1146
1147         /*
1148          * First, check to see if we have permission to enter a message in
1149          * this room.  The server will return an error code if we can't.
1150          */
1151         strcpy(message.recipient, "");
1152         strcpy(message.author, "");
1153         strcpy(message.subject, "");
1154         message.text = "";              /* point to "", changes later */
1155         message.anonymous = 0;
1156         message.type = mode;
1157
1158         if (masquerade) {
1159                 newprompt("Display name for this message: ", message.author, 40);
1160         }
1161
1162         r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1163
1164         if (r / 100 != 2 && r / 10 != 57) {
1165                 scr_printf("%s\n", buf);
1166                 return (1);
1167         }
1168
1169         /* Error code 570 is special.  It means that we CAN enter a message
1170          * in this room, but a recipient needs to be specified.
1171          */
1172         need_recp = 0;
1173         if (r / 10 == 57) {
1174                 need_recp = 1;
1175         }
1176
1177         /* If the user is a dumbass, tell them how to type. */
1178         if ((userflags & US_EXPERT) == 0) {
1179                 formout(ipc, "entermsg");
1180         }
1181
1182         /* Handle the selection of a recipient, if necessary. */
1183         strcpy(buf, "");
1184         if (need_recp == 1) {
1185                 if (axlevel >= 2) {
1186                         if (is_reply) {
1187                                 strcpy(buf, reply_to);
1188                         } else {
1189                                 scr_printf("Enter recipient: ");
1190                                 ctdl_getline(buf, (SIZ-100) );
1191                                 if (IsEmptyStr(buf))
1192                                         return (1);
1193                         }
1194                 } else
1195                         strcpy(buf, "sysop");
1196         }
1197         strcpy(message.recipient, buf);
1198
1199         if (is_reply) {
1200                 if (!IsEmptyStr(reply_subject)) {
1201                         if (!strncasecmp(reply_subject,
1202                            "Re: ", 3)) {
1203                                 strcpy(message.subject, reply_subject);
1204                         }
1205                         else {
1206                                 snprintf(message.subject,
1207                                         sizeof message.subject,
1208                                         "Re: %s",
1209                                         reply_subject);
1210                         }
1211                 }
1212         }
1213
1214         if (room_flags & QR_ANONOPT) {
1215                 scr_printf("Anonymous (Y/N)? ");
1216                 if (yesno() == 1)
1217                         message.anonymous = 1;
1218         }
1219
1220         /* If it's mail, we've got to check the validity of the recipient... */
1221         if (!IsEmptyStr(message.recipient)) {
1222                 r = CtdlIPCPostMessage(ipc, 0, &subject_required,  &message, buf);
1223                 if (r / 100 != 2) {
1224                         scr_printf("%s\n", buf);
1225                         return (1);
1226                 }
1227         }
1228
1229         /* Learn the number of the newest message in in the room, so we can
1230          * tell upon saving whether someone else has posted too.
1231          */
1232         num_msgs = 0;
1233         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1234         if (r / 100 != 1) {
1235                 scr_printf("%s\n", buf);
1236         } else {
1237                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1238                         ;
1239         }
1240
1241         /* Now compose the message... */
1242         if (client_make_message(ipc, temp, message.recipient,
1243            message.anonymous, 0, c, message.subject, subject_required) != 0) {
1244             if (msgarr) free(msgarr);
1245                 return (2);
1246         }
1247
1248         /* Reopen the temp file that was created, so we can send it */
1249         fp = fopen(temp, "r");
1250
1251         if (!fp || !(message.text = load_message_from_file(fp))) {
1252                 err_printf("*** Internal error while trying to save message!\n"
1253                         "%s: %s\n",
1254                         temp, strerror(errno));
1255                 unlink(temp);
1256                 return(errno);
1257         }
1258
1259         if (fp) fclose(fp);
1260
1261         /* Break lines that are >1024 characters, otherwise the server
1262          * will truncate them.
1263          */
1264         break_big_lines(message.text);
1265
1266         /* Transmit message to the server */
1267         r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1268         if (r / 100 != 4) {
1269                 scr_printf("%s\n", buf);
1270                 return (1);
1271         }
1272
1273         /* Yes, unlink it now, so it doesn't stick around if we crash */
1274         unlink(temp);
1275
1276         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1277
1278         if (msgarr) free(msgarr);
1279         msgarr = NULL;
1280         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1281         if (r / 100 != 1) {
1282                 scr_printf("%s\n", buf);
1283         } else {
1284                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1285                         ;
1286         }
1287
1288         /* get new highest message number in room to set lrp for goto... */
1289         maxmsgnum = msgarr[num_msgs - 1];
1290
1291         /* now see if anyone else has posted in here */
1292         b = (-1);
1293         for (a = 0; a < num_msgs; ++a) {
1294                 if (msgarr[a] > highmsg) {
1295                         ++b;
1296                 }
1297         }
1298         if (msgarr) free(msgarr);
1299         msgarr = NULL;
1300
1301         /* In the Mail> room, this algorithm always counts one message
1302          * higher than in public rooms, so we decrement it by one.
1303          */
1304         if (need_recp) {
1305                 --b;
1306         }
1307
1308         if (b == 1) {
1309                 scr_printf("*** 1 additional message has been entered "
1310                         "in this room by another user.\n");
1311         }
1312         else if (b > 1) {
1313                 scr_printf("*** %d additional messages have been entered "
1314                         "in this room by other users.\n", b);
1315         }
1316     free(message.text);
1317
1318         return(0);
1319 }
1320
1321 /*
1322  * Do editing on a quoted file
1323  */
1324 void process_quote(void)
1325 {
1326         FILE *qfile, *tfile;
1327         char buf[128];
1328         int line, qstart, qend;
1329
1330         /* Unlink the second temp file as soon as it's opened, so it'll get
1331          * deleted even if the program dies
1332          */
1333         qfile = fopen(temp2, "r");
1334         unlink(temp2);
1335
1336         /* Display the quotable text with line numbers added */
1337         line = 0;
1338         fgets(buf, 128, qfile);
1339         while (fgets(buf, 128, qfile) != NULL) {
1340                 scr_printf("%2d %s", ++line, buf);
1341         }
1342         scr_printf("Begin quoting at [ 1] : ");
1343         ctdl_getline(buf, 3);
1344         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1345         scr_printf("  End quoting at [%d] : ", line);
1346         ctdl_getline(buf, 3);
1347         qend = (buf[0] == 0) ? (line) : atoi(buf);
1348         rewind(qfile);
1349         line = 0;
1350         fgets(buf, 128, qfile);
1351         tfile = fopen(temp, "w");
1352         while (fgets(buf, 128, qfile) != NULL) {
1353                 if ((++line >= qstart) && (line <= qend))
1354                         fprintf(tfile, " >%s", buf);
1355         }
1356         fprintf(tfile, " \n");
1357         fclose(qfile);
1358         fclose(tfile);
1359         chmod(temp, 0666);
1360 }
1361
1362
1363
1364 /*
1365  * List the URL's which were embedded in the previous message
1366  */
1367 void list_urls(CtdlIPC *ipc)
1368 {
1369         int i;
1370         char cmd[SIZ];
1371
1372         if (num_urls == 0) {
1373                 scr_printf("There were no URL's in the previous message.\n\n");
1374                 return;
1375         }
1376
1377         for (i = 0; i < num_urls; ++i) {
1378                 scr_printf("%3d %s\n", i + 1, urls[i]);
1379         }
1380
1381         if ((i = num_urls) != 1)
1382                 i = intprompt("Display which one", 1, 1, num_urls);
1383
1384         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1385         system(cmd);
1386         scr_printf("\n");
1387 }
1388
1389
1390 /*
1391  * Run image viewer in background
1392  */
1393 int do_image_view(const char *filename)
1394 {
1395         char cmd[SIZ];
1396         pid_t childpid;
1397
1398         snprintf(cmd, sizeof cmd, imagecmd, filename);
1399         childpid = fork();
1400         if (childpid < 0) {
1401                 unlink(filename);
1402                 return childpid;
1403         }
1404
1405         if (childpid == 0) {
1406                 int retcode;
1407                 pid_t grandchildpid;
1408
1409                 grandchildpid = fork();
1410                 if (grandchildpid < 0) {
1411                         return grandchildpid;
1412                 }
1413
1414                 if (grandchildpid == 0) {
1415                         int nullfd;
1416                         int outfd = -1;
1417                         int errfd = -1;
1418
1419                         nullfd = open("/dev/null", O_WRONLY);
1420                         if (nullfd > -1) {
1421                                 dup2(1, outfd);
1422                                 dup2(2, errfd);
1423                                 dup2(nullfd, 1);
1424                                 dup2(nullfd, 2);
1425                         }
1426                         retcode = system(cmd);
1427                         if (nullfd > -1) {
1428                                 dup2(outfd, 1);
1429                                 dup2(errfd, 2);
1430                                 close(nullfd);
1431                         }
1432                         unlink(filename);
1433                         exit(retcode);
1434                 }
1435
1436                 if (grandchildpid > 0) {
1437                         exit(0);
1438                 }
1439         }
1440
1441         if (childpid > 0) {
1442                 int retcode;
1443
1444                 waitpid(childpid, &retcode, 0);
1445                 return retcode;
1446         }
1447
1448         return -1;
1449 }
1450
1451
1452 /*
1453  * View an image attached to a message
1454  */
1455 void image_view(CtdlIPC *ipc, unsigned long msg)
1456 {
1457         struct parts *ptr = last_message_parts;
1458         char part[SIZ];
1459         int found = 0;
1460
1461         /* Run through available parts */
1462         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1463                 if ((!strcasecmp(ptr->disposition, "attachment")
1464                    || !strcasecmp(ptr->disposition, "inline"))
1465                    && !strncmp(ptr->mimetype, "image/", 6)) {
1466                         found++;
1467                         if (found == 1) {
1468                                 strcpy(part, ptr->number);
1469                         }
1470                 }
1471         }
1472
1473         while (found > 0) {
1474                 if (found > 1)
1475                         strprompt("View which part (0 when done)", part, SIZ-1);
1476                 found = -found;
1477                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1478                         if ((!strcasecmp(ptr->disposition, "attachment")
1479                            || !strcasecmp(ptr->disposition, "inline"))
1480                            && !strncmp(ptr->mimetype, "image/", 6)
1481                            && !strcasecmp(ptr->number, part)) {
1482                                 char tmp[PATH_MAX];
1483                                 char buf[SIZ];
1484                                 void *file = NULL; /* The downloaded file */
1485                                 int r;
1486
1487                                 /* view image */
1488                                 found = -found;
1489                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1490                                 if (r / 100 != 2) {
1491                                         scr_printf("%s\n", buf);
1492                                 } else {
1493                                         size_t len;
1494
1495                                         len = (size_t)extract_long(buf, 0);
1496                                         progress(ipc, len, len);
1497                                         scr_flush();
1498                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1499                                         strcat(tmp, ptr->filename);
1500                                         save_buffer(file, len, tmp);
1501                                         free(file);
1502                                         do_image_view(tmp);
1503                                 }
1504                                 break;
1505                         }
1506                 }
1507                 if (found == 1)
1508                         break;
1509         }
1510 }
1511
1512
1513 /*
1514  * Read the messages in the current room
1515  */
1516 void readmsgs(CtdlIPC *ipc,
1517         enum MessageList c,             /* see listing in citadel_ipc.h */
1518         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1519         int q           /* Number of msgs to read (if c==3) */
1520 ) {
1521         int a, b, e, f, g, start;
1522         int savedpos;
1523         int hold_sw = 0;
1524         char arcflag = 0;
1525         char quotflag = 0;
1526         int hold_color = 0;
1527         char prtfile[PATH_MAX];
1528         char pagin;
1529         char cmd[SIZ];
1530         char targ[ROOMNAMELEN];
1531         char filename[PATH_MAX];
1532         char save_to[PATH_MAX];
1533         void *attachment = NULL;        /* Downloaded attachment */
1534         FILE *dest = NULL;      /* Alternate destination other than screen */
1535         int r;                          /* IPC response code */
1536
1537         if (c < 0)
1538                 b = (num_msgs - 1);
1539         else
1540                 b = 0;
1541
1542         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1543
1544         if (msg_arr) {
1545                 free(msg_arr);
1546                 msg_arr = NULL;
1547         }
1548         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1549         if (r / 100 != 1) {
1550                 scr_printf("%s\n", cmd);
1551         } else {
1552                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1553                         ;
1554         }
1555
1556         if (num_msgs == 0) {    /* TODO look at this later */
1557                 if (c == LastMessages) return;
1558                 scr_printf("*** There are no ");
1559                 if (c == NewMessages) scr_printf("new ");
1560                 if (c == OldMessages) scr_printf("old ");
1561                 scr_printf("messages in this room.\n");
1562                 return;
1563         }
1564
1565         lines_printed = 0;
1566
1567         /* this loop cycles through each message... */
1568         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1569         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1570                 while (msg_arr[a] == 0L) {
1571                         a = a + rdir;
1572                         if ((a == num_msgs) || (a == (-1)))
1573                                 return;
1574                 }
1575
1576 RAGAIN:         pagin = ((arcflag == 0)
1577                          && (quotflag == 0)
1578                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1579
1580                 /* If we're doing a quote, set the screenwidth to 72 */
1581                 if (quotflag) {
1582                         hold_sw = screenwidth;
1583                         screenwidth = 72;
1584                 }
1585
1586                 /* If printing or archiving, set the screenwidth to 80 */
1587                 if (arcflag) {
1588                         hold_sw = screenwidth;
1589                         screenwidth = 80;
1590                 }
1591
1592                 /* clear parts list */
1593                 free_parts(last_message_parts);
1594                 last_message_parts = NULL;
1595
1596                 /* now read the message... */
1597                 e = read_message(ipc, msg_arr[a], pagin, dest);
1598
1599                 /* ...and set the screenwidth back if we have to */
1600                 if ((quotflag) || (arcflag)) {
1601                         screenwidth = hold_sw;
1602                 }
1603 RMSGREAD:       scr_flush();
1604                 highest_msg_read = msg_arr[a];
1605                 if (quotflag) {
1606                         fclose(dest);
1607                         dest = NULL;
1608                         quotflag = 0;
1609                         enable_color = hold_color;
1610                         process_quote();
1611                 }
1612                 if (arcflag) {
1613                         fclose(dest);
1614                         dest = NULL;
1615                         arcflag = 0;
1616                         enable_color = hold_color;
1617                         f = fork();
1618                         if (f == 0) {
1619                                 freopen(prtfile, "r", stdin);
1620                                 screen_reset();
1621                                 stty_ctdl(SB_RESTORE);
1622                                 ka_system(printcmd);
1623                                 stty_ctdl(SB_NO_INTR);
1624                                 screen_set();
1625                                 unlink(prtfile);
1626                                 exit(0);
1627                         }
1628                         if (f > 0)
1629                                 do {
1630                                         g = wait(NULL);
1631                                 } while ((g != f) && (g >= 0));
1632                         scr_printf("Message printed.\n");
1633                 }
1634                 if (rc_alt_semantics && c == 1) {
1635                         char buf[SIZ];
1636
1637                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1638                 }
1639                 if (e == SIGQUIT)
1640                         return;
1641                 if (((userflags & US_NOPROMPT) || (e == SIGINT))
1642                         && (((room_flags & QR_MAILBOX) == 0)
1643                         || (rc_force_mail_prompts == 0))) {
1644                         e = 'n';
1645                 } else {
1646                         color(DIM_WHITE);
1647                         scr_printf("(");
1648                         color(BRIGHT_WHITE);
1649                         scr_printf("%d", num_msgs - a - 1);
1650                         color(DIM_WHITE);
1651                         scr_printf(") ");
1652
1653                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1654                         if (rc_url_cmd[0] && num_urls)
1655                                 keyopt("<U>RLview ");
1656                         if (has_images > 0 && !IsEmptyStr(imagecmd))
1657                                 keyopt("<I>mages ");
1658                         keyopt("<?>help -> ");
1659
1660                         do {
1661                                 lines_printed = 2;
1662                                 e = (inkey() & 127);
1663                                 e = tolower(e);
1664 /* return key same as <N> */ if (e == 10)
1665                                         e = 'n';
1666 /* space key same as <N> */ if (e == 32)
1667                                         e = 'n';
1668 /* del/move for aides only */
1669                                     if (  (!is_room_aide)
1670                                        && ((room_flags & QR_MAILBOX) == 0)
1671                                        && ((room_flags2 & QR2_COLLABDEL) == 0)
1672                                        ) {
1673                                         if ((e == 'd') || (e == 'm'))
1674                                                 e = 0;
1675                                 }
1676 /* print only if available */
1677                                 if ((e == 'p') && (IsEmptyStr(printcmd)))
1678                                         e = 0;
1679 /* can't file if not allowed */
1680                                     if ((e == 'f')
1681                                         && (rc_allow_attachments == 0))
1682                                         e = 0;
1683 /* link only if browser avail*/
1684                                     if ((e == 'u')
1685                                         && (IsEmptyStr(rc_url_cmd)))
1686                                         e = 0;
1687                                 if ((e == 'i')
1688                                         && (IsEmptyStr(imagecmd) || !has_images))
1689                                         e = 0;
1690                         } while ((e != 'a') && (e != 'n') && (e != 's')
1691                                  && (e != 'd') && (e != 'm') && (e != 'p')
1692                                  && (e != 'q') && (e != 'b') && (e != 'h')
1693                                  && (e != 'r') && (e != 'f') && (e != '?')
1694                                  && (e != 'u') && (e != 'c') && (e != 'y')
1695                                  && (e != 'i'));
1696                         switch (e) {
1697                         case 's':
1698                                 scr_printf("Stop");
1699                                 break;
1700                         case 'a':
1701                                 scr_printf("Again");
1702                                 break;
1703                         case 'd':
1704                                 scr_printf("Delete");
1705                                 break;
1706                         case 'm':
1707                                 scr_printf("Move");
1708                                 break;
1709                         case 'c':
1710                                 scr_printf("Copy");
1711                                 break;
1712                         case 'n':
1713                                 scr_printf("Next");
1714                                 break;
1715                         case 'p':
1716                                 scr_printf("Print");
1717                                 break;
1718                         case 'q':
1719                                 scr_printf("Quote");
1720                                 break;
1721                         case 'b':
1722                                 scr_printf("Back");
1723                                 break;
1724                         case 'h':
1725                                 scr_printf("Header");
1726                                 break;
1727                         case 'r':
1728                                 scr_printf("Reply");
1729                                 break;
1730                         case 'f':
1731                                 scr_printf("File");
1732                                 break;
1733                         case 'u':
1734                                 scr_printf("URL's");
1735                                 break;
1736                         case 'y':
1737                                 scr_printf("mY next");
1738                                 break;
1739                         case 'i':
1740                                 break;
1741                         case '?':
1742                                 scr_printf("? <help>");
1743                                 break;
1744                         }
1745                         if (userflags & US_DISAPPEAR || e == 'i')
1746                                 scr_printf("\r%79s\r", "");
1747                         else
1748                                 scr_printf("\n");
1749                         scr_flush();
1750                 }
1751                 switch (e) {
1752                 case '?':
1753                         scr_printf("Options available here:\n"
1754                                 " ?  Help (prints this message)\n"
1755                                 " S  Stop reading immediately\n"
1756                                 " A  Again (repeats last message)\n"
1757                                 " N  Next (continue with next message)\n"
1758                                 " Y  My Next (continue with next message you authored)\n"
1759                                 " B  Back (go back to previous message)\n");
1760                         if (  (is_room_aide)
1761                            || (room_flags & QR_MAILBOX)
1762                            || (room_flags2 & QR2_COLLABDEL)
1763                         ) {
1764                                 scr_printf(" D  Delete this message\n"
1765                                         " M  Move message to another room\n");
1766                         }
1767                         scr_printf(" C  Copy message to another room\n");
1768                         if (!IsEmptyStr(printcmd))
1769                                 scr_printf(" P  Print this message\n");
1770                         scr_printf(
1771                                 " Q  Quote portions of this message for your next post\n"
1772                                 " H  Headers (display message headers only)\n");
1773                         if (is_mail)
1774                                 scr_printf(" R  Reply to this message\n");
1775                         if (rc_allow_attachments)
1776                                 scr_printf
1777                                     (" F  (save attachments to a file)\n");
1778                         if (!IsEmptyStr(rc_url_cmd))
1779                                 scr_printf(" U  (list URL's for display)\n");
1780                         if (!IsEmptyStr(imagecmd) && has_images > 0)
1781                                 scr_printf(" I  Image viewer\n");
1782                         scr_printf("\n");
1783                         goto RMSGREAD;
1784                 case 'p':
1785                         scr_flush();
1786                         dest = fopen(prtfile, "w");
1787                         arcflag = 1;
1788                         hold_color = enable_color;
1789                         enable_color = 0;
1790                         goto RAGAIN;
1791                 case 'q':
1792                         scr_flush();
1793                         dest = fopen(temp2, "w");
1794                         quotflag = 1;
1795                         hold_color = enable_color;
1796                         enable_color = 0;
1797                         goto RAGAIN;
1798                 case 's':
1799                         return;
1800                 case 'a':
1801                         goto RAGAIN;
1802                 case 'b':
1803                         a = a - (rdir * 2);
1804                         break;
1805                 case 'm':
1806                 case 'c':
1807                         newprompt("Enter target room: ",
1808                                   targ, ROOMNAMELEN - 1);
1809                         if (!IsEmptyStr(targ)) {
1810                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1811                                                        msg_arr[a], targ, cmd);
1812                                 scr_printf("%s\n", cmd);
1813                                 if (r / 100 == 2)
1814                                         msg_arr[a] = 0L;
1815                         } else {
1816                                 goto RMSGREAD;
1817                         }
1818                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1819                                 goto RMSGREAD;  /* the logic here sucks */
1820                         break;
1821                 case 'f':
1822                         newprompt("Which section? ", filename,
1823                                   ((sizeof filename) - 1));
1824                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1825                                         filename, &attachment, progress, cmd);
1826                         if (r / 100 != 2) {
1827                                 scr_printf("%s\n", cmd);
1828                         } else {
1829                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1830                                 /*
1831                                  * Part 1 won't have a filename; use the
1832                                  * subject of the message instead. IO
1833                                  */
1834                                 if (IsEmptyStr(filename))
1835                                         strcpy(filename, reply_subject);
1836                                 destination_directory(save_to, filename);
1837                                 save_buffer(attachment,
1838                                                 extract_unsigned_long(cmd, 0),
1839                                                 save_to);
1840                         }
1841                         if (attachment) {
1842                                 free(attachment);
1843                                 attachment = NULL;
1844                         }
1845                         goto RMSGREAD;
1846                 case 'd':
1847                         scr_printf("*** Delete this message? ");
1848                         if (yesno() == 1) {
1849                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1850                                 scr_printf("%s\n", cmd);
1851                                 if (r / 100 == 2)
1852                                         msg_arr[a] = 0L;
1853                         } else {
1854                                 goto RMSGREAD;
1855                         }
1856                         break;
1857                 case 'h':
1858                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1859                         goto RMSGREAD;
1860                 case 'r':
1861                         savedpos = num_msgs;
1862                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1863                         num_msgs = savedpos;
1864                         goto RMSGREAD;
1865                 case 'u':
1866                         list_urls(ipc);
1867                         goto RMSGREAD;
1868                 case 'i':
1869                         image_view(ipc, msg_arr[a]);
1870                         goto RMSGREAD;
1871             case 'y':
1872           { /* hack hack hack */
1873             /* find the next message by me, stay here if we find nothing */
1874             int finda;
1875             int lasta = a;
1876             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1877               {
1878                 /* This is repetitively dumb, but that's what computers are for.
1879                    We have to load up messages until we find one by us */
1880                 char buf[SIZ];
1881                 int founda = 0;
1882                 struct ctdlipcmessage *msg = NULL;
1883
1884                 /* read the header so we can get 'from=' */
1885                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1886                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1887                         a = lasta; /* meesa current */
1888                         founda = 1;
1889                 }
1890
1891                 free(msg);
1892
1893                 if (founda)
1894                         break; /* for */
1895                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1896               } /* for */
1897           } /* case 'y' */
1898       } /* switch */
1899         }                       /* end for loop */
1900 }                               /* end read routine */
1901
1902
1903
1904
1905 /*
1906  * View and edit a system message
1907  */
1908 void edit_system_message(CtdlIPC *ipc, char *which_message)
1909 {
1910         char desc[SIZ];
1911         char read_cmd[SIZ];
1912         char write_cmd[SIZ];
1913
1914         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1915         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1916         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1917         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1918 }
1919
1920
1921
1922
1923 /*
1924  * Verify the message base
1925  */
1926 void check_message_base(CtdlIPC *ipc)
1927 {
1928         char buf[SIZ];
1929         char *transcript = NULL;
1930         int r;          /* IPC response code */
1931
1932         scr_printf
1933             ("Please read the documentation before running this command.\n"
1934             "Having done so, do you still want to check the message base? ");
1935         if (yesno() == 0)
1936                 return;
1937
1938         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1939         if (r / 100 != 1) {
1940                 scr_printf("%s\n", buf);
1941                 return;
1942         }
1943
1944         while (transcript && !IsEmptyStr(transcript)) {
1945                 lines_printed = 1;
1946                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1947                 remove_token(transcript, 0, '\n');
1948                 pprintf("%s\n", buf);
1949         }
1950         if (transcript) free(transcript);
1951         return;
1952 }
1953
1954
1955 /*
1956  * Loads the contents of a file into memory.  Caller must free the allocated
1957  * memory.
1958  */
1959 char *load_message_from_file(FILE *src)
1960 {
1961         size_t i;
1962         size_t got = 0;
1963         char *dest = NULL;
1964
1965         fseek(src, 0, SEEK_END);
1966         i = ftell(src);
1967         rewind(src);
1968
1969         dest = (char *)calloc(1, i + 1);
1970         if (!dest)
1971                 return NULL;
1972
1973         while (got < i) {
1974                 size_t g;
1975
1976                 g = fread(dest + got, 1, i - got, src);
1977                 got += g;
1978                 if (g < i - got) {
1979                         /* Interrupted system call, keep going */
1980                         if (errno == EINTR)
1981                                 continue;
1982                         /* At this point we have either EOF or error */
1983                         i = got;
1984                         break;
1985                 }
1986                 dest[i] = 0;
1987         }
1988
1989         return dest;
1990 }