citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel message support routines
   5  * see copyright.txt for copyright information
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <sys/types.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <sys/wait.h>
  20 #include <sys/stat.h>
  21
  22 #if TIME_WITH_SYS_TIME
  23 # include <sys/time.h>
  24 # include <time.h>
  25 #else
  26 # if HAVE_SYS_TIME_H
  27 #  include <sys/time.h>
  28 # else
  29 #  include <time.h>
  30 # endif
  31 #endif
  32
  33 #ifdef HAVE_PTHREAD_H
  34 #include <pthread.h>
  35 #endif
  36
  37 #include <stdarg.h>
  38 #include "citadel.h"
  39 #include "citadel_ipc.h"
  40 #include "citadel_decls.h"
  41 #include "messages.h"
  42 #include "commands.h"
  43 #include "rooms.h"
  44 #include "tools.h"
  45 #include "html.h"
  46 #ifndef HAVE_SNPRINTF
  47 #include "snprintf.h"
  48 #endif
  49 #include "screen.h"
  50
  51 #define MAXWORDBUF SIZ
  52 #define NO_REPLY_TO     "nobody ... xxxxxx"
  53
  54 char reply_to[SIZ];
  55 char reply_subject[SIZ];
  56
  57 struct cittext {
  58         struct cittext *next;
  59         char text[MAXWORDBUF];
  60 };
  61
  62 void stty_ctdl(int cmd);
  63 int haschar(const char *st, int ch);
  64 void ctdl_getline(char *string, int lim);
  65 int file_checksum(char *filename);
  66 void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
  67
  68 unsigned long *msg_arr = NULL;
  69 int msg_arr_size = 0;
  70 int num_msgs;
  71 char rc_alt_semantics;
  72 extern char room_name[];
  73 extern unsigned room_flags;
  74 extern long highest_msg_read;
  75 extern char temp[];
  76 extern char temp2[];
  77 extern int screenwidth;
  78 extern int screenheight;
  79 extern long maxmsgnum;
  80 extern char is_mail;
  81 extern char is_aide;
  82 extern char is_room_aide;
  83 extern char fullname[];
  84 extern char axlevel;
  85 extern unsigned userflags;
  86 extern char sigcaught;
  87 extern char printcmd[];
  88 extern int rc_allow_attachments;
  89 extern int rc_display_message_numbers;
  90 extern int rc_force_mail_prompts;
  91 extern int editor_pid;
  92 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  93 int num_urls = 0;
  94 char urls[MAXURLS][SIZ];
  95 char imagecmd[SIZ];
  96 int has_images = 0;                             /* Current msg has images */
  97 struct parts *last_message_parts = NULL;        /* Parts from last msg */
  98
  99
 100
 101 void ka_sigcatch(int signum)
 102 {
 103         alarm(S_KEEPALIVE);
 104         signal(SIGALRM, ka_sigcatch);
 105         CtdlIPCNoop(ipc_for_signal_handlers);
 106 }
 107
 108
 109 /*
 110  * server keep-alive version of wait() (needed for external editor)
 111  */
 112 pid_t ka_wait(int *kstatus)
 113 {
 114         pid_t p;
 115
 116         alarm(S_KEEPALIVE);
 117         signal(SIGALRM, ka_sigcatch);
 118         do {
 119                 errno = 0;
 120                 p = wait(kstatus);
 121         } while (errno == EINTR);
 122         signal(SIGALRM, SIG_IGN);
 123         alarm(0);
 124         return (p);
 125 }
 126
 127
 128 /*
 129  * version of system() that uses ka_wait()
 130  */
 131 int ka_system(char *shc)
 132 {
 133         pid_t childpid;
 134         pid_t waitpid;
 135         int retcode;
 136
 137         childpid = fork();
 138         if (childpid < 0) {
 139                 color(BRIGHT_RED);
 140                 perror("Cannot fork");
 141                 color(DIM_WHITE);
 142                 return ((pid_t) childpid);
 143         }
 144
 145         if (childpid == 0) {
 146                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 147                 exit(127);
 148         }
 149
 150         if (childpid > 0) {
 151                 do {
 152                         waitpid = ka_wait(&retcode);
 153                 } while (waitpid != childpid);
 154                 return (retcode);
 155         }
 156
 157         return (-1);
 158 }
 159
 160
 161
 162 /*
 163  * add a newline to the buffer...
 164  */
 165 void add_newline(struct cittext *textlist)
 166 {
 167         struct cittext *ptr;
 168
 169         ptr = textlist;
 170         while (ptr->next != NULL)
 171                 ptr = ptr->next;
 172
 173         while (ptr->text[strlen(ptr->text) - 1] == 32)
 174                 ptr->text[strlen(ptr->text) - 1] = 0;
 175         /* strcat(ptr->text,"\n"); */
 176
 177         ptr->next = (struct cittext *)
 178             malloc(sizeof(struct cittext));
 179         ptr = ptr->next;
 180         ptr->next = NULL;
 181         strcpy(ptr->text, "");
 182 }
 183
 184
 185 /*
 186  * add a word to the buffer...
 187  */
 188 void add_word(struct cittext *textlist, char *wordbuf)
 189 {
 190         struct cittext *ptr;
 191
 192         ptr = textlist;
 193         while (ptr->next != NULL)
 194                 ptr = ptr->next;
 195
 196         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 197                 ptr->next = (struct cittext *)
 198                     malloc(sizeof(struct cittext));
 199                 ptr = ptr->next;
 200                 ptr->next = NULL;
 201                 strcpy(ptr->text, "");
 202         }
 203
 204         strcat(ptr->text, wordbuf);
 205         strcat(ptr->text, " ");
 206 }
 207
 208
 209 /*
 210  * begin editing of an opened file pointed to by fp
 211  */
 212 void citedit(CtdlIPC *ipc, FILE * fp)
 213 {
 214         int a, prev, finished, b, last_space;
 215         int appending = 0;
 216         struct cittext *textlist = NULL;
 217         struct cittext *ptr;
 218         char wordbuf[MAXWORDBUF];
 219
 220         /* first, load the text into the buffer */
 221         fseek(fp, 0L, 0);
 222         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 223         textlist->next = NULL;
 224         strcpy(textlist->text, "");
 225
 226         strcpy(wordbuf, "");
 227         prev = (-1);
 228         while (a = getc(fp), a >= 0) {
 229                 appending = 1;
 230                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 231                         add_word(textlist, wordbuf);
 232                         strcpy(wordbuf, "");
 233                         if ((prev == 13) || (prev == 10)) {
 234                                 add_word(textlist, "\n");
 235                                 add_newline(textlist);
 236                                 add_word(textlist, "");
 237                         }
 238                 } else {
 239                         wordbuf[strlen(wordbuf) + 1] = 0;
 240                         wordbuf[strlen(wordbuf)] = a;
 241                 }
 242                 if (strlen(wordbuf) + 3 > screenwidth) {
 243                         add_word(textlist, wordbuf);
 244                         strcpy(wordbuf, "");
 245                 }
 246                 prev = a;
 247         }
 248
 249         /* get text */
 250         finished = 0;
 251         prev = (appending ? 13 : (-1));
 252         strcpy(wordbuf, "");
 253         async_ka_start();
 254         do {
 255                 a = inkey();
 256                 if (a == 10)
 257                         a = 13;
 258                 if (a == 9)
 259                         a = 32;
 260                 if (a == 127)
 261                         a = 8;
 262
 263                 if ((a != 32) && (prev == 13)) {
 264                         add_word(textlist, "\n");
 265                         scr_printf(" ");
 266                 }
 267
 268                 if ((a == 32) && (prev == 13)) {
 269                         add_word(textlist, "\n");
 270                         add_newline(textlist);
 271                 }
 272
 273                 if (a == 8) {
 274                         if (strlen(wordbuf) > 0) {
 275                                 wordbuf[strlen(wordbuf) - 1] = 0;
 276                                 scr_putc(8);
 277                                 scr_putc(32);
 278                                 scr_putc(8);
 279                         }
 280                 } else if (a == 23) {
 281                         do {
 282                                 wordbuf[strlen(wordbuf) - 1] = 0;
 283                                 scr_putc(8);
 284                                 scr_putc(32);
 285                                 scr_putc(8);
 286                         } while (strlen(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 287                 } else if (a == 13) {
 288                         scr_printf("\n");
 289                         if (strlen(wordbuf) == 0)
 290                                 finished = 1;
 291                         else {
 292                                 for (b = 0; b < strlen(wordbuf); ++b)
 293                                         if (wordbuf[b] == 32) {
 294                                                 wordbuf[b] = 0;
 295                                                 add_word(textlist,
 296                                                          wordbuf);
 297                                                 strcpy(wordbuf,
 298                                                        &wordbuf[b + 1]);
 299                                                 b = 0;
 300                                         }
 301                                 add_word(textlist, wordbuf);
 302                                 strcpy(wordbuf, "");
 303                         }
 304                 } else {
 305                         scr_putc(a);
 306                         wordbuf[strlen(wordbuf) + 1] = 0;
 307                         wordbuf[strlen(wordbuf)] = a;
 308                 }
 309                 if ((strlen(wordbuf) + 3) > screenwidth) {
 310                         last_space = (-1);
 311                         for (b = 0; b < strlen(wordbuf); ++b)
 312                                 if (wordbuf[b] == 32)
 313                                         last_space = b;
 314                         if (last_space >= 0) {
 315                                 for (b = 0; b < strlen(wordbuf); ++b)
 316                                         if (wordbuf[b] == 32) {
 317                                                 wordbuf[b] = 0;
 318                                                 add_word(textlist,
 319                                                          wordbuf);
 320                                                 strcpy(wordbuf,
 321                                                        &wordbuf[b + 1]);
 322                                                 b = 0;
 323                                         }
 324                                 for (b = 0; b < strlen(wordbuf); ++b) {
 325                                         scr_putc(8);
 326                                         scr_putc(32);
 327                                         scr_putc(8);
 328                                 }
 329                                 scr_printf("\n%s", wordbuf);
 330                         } else {
 331                                 add_word(textlist, wordbuf);
 332                                 strcpy(wordbuf, "");
 333                                 scr_printf("\n");
 334                         }
 335                 }
 336                 prev = a;
 337         } while (finished == 0);
 338         async_ka_end();
 339
 340         /* write the buffer back to disk */
 341         fseek(fp, 0L, 0);
 342         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 343                 fprintf(fp, "%s", ptr->text);
 344         }
 345         putc(10, fp);
 346         fflush(fp);
 347         ftruncate(fileno(fp), ftell(fp));
 348
 349         /* and deallocate the memory we used */
 350         while (textlist != NULL) {
 351                 ptr = textlist->next;
 352                 free(textlist);
 353                 textlist = ptr;
 354         }
 355 }
 356
 357
 358 /*
 359  * Free the struct parts
 360  */
 361 void free_parts(struct parts *p)
 362 {
 363         struct parts *a_part = p;
 364
 365         while (a_part) {
 366                 struct parts *q;
 367
 368                 q = a_part;
 369                 a_part = a_part->next;
 370                 free(q);
 371         }
 372 }
 373
 374
 375 /*
 376  * Read a message from the server
 377  */
 378 int read_message(CtdlIPC *ipc,
 379         long num,   /* message number */
 380         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 381         FILE *dest) /* Destination file, NULL for screen */
 382 {
 383         char buf[SIZ];
 384         char now[SIZ];
 385         int format_type = 0;
 386         int fr = 0;
 387         int nhdr = 0;
 388         struct ctdlipcmessage *message = NULL;
 389         int r;                          /* IPC response code */
 390         char *converted_text = NULL;
 391         char *lineptr;
 392         char *nextline;
 393         char *searchptr;
 394         int i;
 395         char ch;
 396         int linelen;
 397         int final_line_is_blank = 0;
 398
 399         has_images = 0;
 400
 401         sigcaught = 0;
 402         stty_ctdl(1);
 403
 404         strcpy(reply_to, NO_REPLY_TO);
 405         strcpy(reply_subject, "");
 406
 407         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 408                                 (can_do_msg4 ? 4 : 0),
 409                                 &message, buf);
 410         if (r / 100 != 1) {
 411                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 412                 ++lines_printed;
 413                 lines_printed =
 414                     checkpagin(lines_printed, pagin, screenheight);
 415                 stty_ctdl(0);
 416                 return (0);
 417         }
 418
 419         if (dest) {
 420                 fprintf(dest, "\n ");
 421         } else {
 422                 scr_printf("\n");
 423                 ++lines_printed;
 424                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 425                 if (pagin != 2)
 426                         scr_printf(" ");
 427         }
 428         if (pagin == 1 && !dest) {
 429                 color(BRIGHT_CYAN);
 430         }
 431
 432         /* View headers only */
 433         if (pagin == 2) {
 434                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 435                                 message->nhdr ? "yes" : "no",
 436                                 message->author, message->type,
 437                                 message->msgid);
 438                 if (strlen(message->subject)) {
 439                         pprintf("subj=%s\n", message->subject);
 440                 }
 441                 if (strlen(message->email)) {
 442                         pprintf("rfca=%s\n", message->email);
 443                 }
 444                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 445                                 message->hnod, message->room,
 446                                 message->node,
 447                                 asctime(localtime(&message->time)));
 448                 if (strlen(message->recipient)) {
 449                         pprintf("rcpt=%s\n", message->recipient);
 450                 }
 451                 if (message->attachments) {
 452                         struct parts *ptr;
 453
 454                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 455                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 456                                         ptr->name, ptr->filename, ptr->number,
 457                                         ptr->disposition, ptr->mimetype,
 458                                         ptr->length);
 459                         }
 460                 }
 461                 pprintf("\n");
 462                 stty_ctdl(0);
 463                 return (0);
 464         }
 465
 466         if (rc_display_message_numbers) {
 467                 if (dest) {
 468                         fprintf(dest, "[#%s] ", message->msgid);
 469                 } else {
 470                         color(DIM_WHITE);
 471                         scr_printf("[");
 472                         color(BRIGHT_WHITE);
 473                         scr_printf("#%s", message->msgid);
 474                         color(DIM_WHITE);
 475                         scr_printf("] ");
 476                 }
 477         }
 478         if (nhdr == 1 && !is_room_aide) {
 479                 if (dest) {
 480                         fprintf(dest, " ****");
 481                 } else {
 482                         scr_printf(" ****");
 483                 }
 484         } else {
 485                 fmt_date(now, sizeof now, message->time, 0);
 486                 if (dest) {
 487                         fprintf(dest, "%s from %s ", now, message->author);
 488                         if (strlen(message->email)) {
 489                                 fprintf(dest, "<%s> ", message->email);
 490                         }
 491                 } else {
 492                         color(BRIGHT_CYAN);
 493                         scr_printf("%s ", now);
 494                         color(DIM_WHITE);
 495                         scr_printf("from ");
 496                         color(BRIGHT_CYAN);
 497                         scr_printf("%s ", message->author);
 498                         if (strlen(message->email)) {
 499                                 color(DIM_WHITE);
 500                                 scr_printf("<");
 501                                 color(BRIGHT_BLUE);
 502                                 scr_printf("%s", message->email);
 503                                         color(DIM_WHITE);
 504                                 scr_printf("> ");
 505                         }
 506                 }
 507                 if (strlen(message->node)) {
 508                         if ((room_flags & QR_NETWORK)
 509                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 510                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 511                                 if (strlen(message->email) == 0) {
 512                                         if (dest) {
 513                                                 fprintf(dest, "@%s ", message->node);
 514                                         } else {
 515                                                 color(DIM_WHITE);
 516                                                 scr_printf("@");
 517                                                 color(BRIGHT_YELLOW);
 518                                                 scr_printf("%s ", message->node);
 519                                         }
 520                                 }
 521                         }
 522                 }
 523                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 524                     && (strlen(message->hnod)) && (!strlen(message->email))) {
 525                         if (dest) {
 526                                 fprintf(dest, "(%s) ", message->hnod);
 527                         } else {
 528                                 color(DIM_WHITE);
 529                                 scr_printf("(");
 530                                 color(BRIGHT_WHITE);
 531                                 scr_printf("%s", message->hnod);
 532                                 color(DIM_WHITE);
 533                                 scr_printf(") ");
 534                         }
 535                 }
 536                 if (strcasecmp(message->room, room_name) && (strlen(message->email) == 0)) {
 537                         if (dest) {
 538                                 fprintf(dest, "in %s> ", message->room);
 539                         } else {
 540                                 color(DIM_WHITE);
 541                                 scr_printf("in ");
 542                                 color(BRIGHT_MAGENTA);
 543                                 scr_printf("%s> ", message->room);
 544                         }
 545                 }
 546                 if (strlen(message->recipient)) {
 547                         if (dest) {
 548                                 fprintf(dest, "to %s ", message->recipient);
 549                         } else {
 550                                 color(DIM_WHITE);
 551                                 scr_printf("to ");
 552                                 color(BRIGHT_CYAN);
 553                                 scr_printf("%s ", message->recipient);
 554                         }
 555                 }
 556         }
 557
 558         if (dest) {
 559                 fprintf(dest, "\n");
 560         } else {
 561                 scr_printf("\n");
 562         }
 563
 564         /* Set the reply-to address to an Internet e-mail address if possible
 565          */
 566         if (message->email != NULL) if (strlen(message->email) > 0) {
 567                 if (strlen(message->author) > 0) {
 568                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 569                 }
 570                 else {
 571                         safestrncpy(reply_to, message->email, sizeof reply_to);
 572                 }
 573         }
 574
 575         /* But if we can't do that, set it to a Citadel address.
 576          */
 577         if (!strcmp(reply_to, NO_REPLY_TO)) {
 578                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 579                          message->author, message->node);
 580         }
 581
 582         if (!dest) {
 583                 ++lines_printed;
 584                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 585         }
 586
 587         if (message->subject != NULL) {
 588                 safestrncpy(reply_subject, message->subject,
 589                                                 sizeof reply_subject);
 590                 if (strlen(message->subject) > 0) {
 591                         if (dest) {
 592                                 fprintf(dest, "Subject: %s\n",
 593                                                         message->subject);
 594                         } else {
 595                                 color(DIM_WHITE);
 596                                 scr_printf("Subject: ");
 597                                 color(BRIGHT_CYAN);
 598                                 scr_printf("%s\n", message->subject);
 599                                 ++lines_printed;
 600                                 lines_printed = checkpagin(lines_printed,
 601                                                 pagin, screenheight);
 602                         }
 603                 }
 604         }
 605
 606         if (pagin == 1 && !dest) {
 607                 color(BRIGHT_WHITE);
 608         }
 609
 610         /******* end of header output, start of message text output *******/
 611
 612         /*
 613          * Convert HTML to plain text, formatting for the actual width
 614          * of the client screen.
 615          */
 616         if (!strcasecmp(message->content_type, "text/html")) {
 617                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 618                 if (converted_text != NULL) {
 619                         free(message->text);
 620                         message->text = converted_text;
 621                         format_type = 1;
 622                 }
 623         }
 624
 625         /* Text/plain is a different type */
 626         if (!strcasecmp(message->content_type, "text/plain")) {
 627                 format_type = 1;
 628         }
 629
 630         /* Extract URL's */
 631         num_urls = 0;   /* Start with a clean slate */
 632         searchptr = message->text;
 633         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 634                 searchptr = strstr(searchptr, "http://");
 635                 if (searchptr != NULL) {
 636                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 637                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 638                                 ch = urls[num_urls][i];
 639                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 640                                     ch == ' ' || ch == '\n') {
 641                                         urls[num_urls][i] = 0;
 642                                         break;
 643                                 }
 644                         }
 645                         num_urls++;
 646                         ++searchptr;
 647                 }
 648         }
 649
 650         /*
 651          * Here we go
 652          */
 653         if (format_type == 0) {
 654                 fr = fmout(screenwidth, NULL, message->text, dest,
 655                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 656         } else {
 657                 /* renderer for text/plain */
 658
 659                 lineptr = message->text;
 660
 661                 do {
 662                         nextline = strchr(lineptr, '\n');
 663                         if (nextline != NULL) {
 664                                 *nextline = 0;
 665                                 ++nextline;
 666                                 if (*nextline == 0) nextline = NULL;
 667                         }
 668
 669                         if (sigcaught == 0) {
 670                                 linelen = strlen(lineptr);
 671                                 if (lineptr[linelen-1] == '\r') {
 672                                         lineptr[--linelen] = 0;
 673                                 }
 674                                 if (dest) {
 675                                         fprintf(dest, "%s\n", lineptr);
 676                                 } else {
 677                                         scr_printf("%s\n", lineptr);
 678                                         lines_printed = lines_printed + 1 +
 679                                             (linelen / screenwidth);
 680                                         lines_printed =
 681                                             checkpagin(lines_printed, pagin,
 682                                                        screenheight);
 683                                 }
 684                         }
 685                         if (lineptr[0] == 0) final_line_is_blank = 1;
 686                         else final_line_is_blank = 0;
 687                         lineptr = nextline;
 688                 } while (nextline);
 689                 fr = sigcaught;
 690         }
 691         if (!final_line_is_blank) {
 692                 if (dest) {
 693                         fprintf(dest, "\n");
 694                 }
 695                 else {
 696                         scr_printf("\n");
 697                         ++lines_printed;
 698                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 699                 }
 700         }
 701
 702         /* Enumerate any attachments */
 703         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 704                 struct parts *ptr;
 705
 706                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 707                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 708                            || (!strcasecmp(ptr->disposition, "inline"))
 709                            || (!strcasecmp(ptr->disposition, ""))
 710                         ) {
 711                                 if ( (strcasecmp(ptr->number, message->mime_chosen))
 712                                    && (strlen(ptr->mimetype) > 0)
 713                                 ) {
 714                                         color(DIM_WHITE);
 715                                         pprintf("Part ");
 716                                         color(BRIGHT_MAGENTA);
 717                                         pprintf("%s", ptr->number);
 718                                         color(DIM_WHITE);
 719                                         pprintf(": ");
 720                                         color(BRIGHT_CYAN);
 721                                         pprintf("%s", ptr->filename);
 722                                         color(DIM_WHITE);
 723                                         pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 724                                         if (!strncmp(ptr->mimetype, "image/", 6)) {
 725                                                 has_images++;
 726                                         }
 727                                 }
 728                         }
 729                 }
 730         }
 731
 732         /* Save the attachments info for later */
 733         last_message_parts = message->attachments;
 734
 735         /* Now we're done */
 736         free(message->text);
 737         free(message);
 738
 739         if (pagin == 1 && !dest)
 740                 color(DIM_WHITE);
 741         stty_ctdl(0);
 742         return (fr);
 743 }
 744
 745 /*
 746  * replace string function for the built-in editor
 747  */
 748 void replace_string(char *filename, long int startpos)
 749 {
 750         char buf[512];
 751         char srch_str[128];
 752         char rplc_str[128];
 753         FILE *fp;
 754         int a;
 755         long rpos, wpos;
 756         char *ptr;
 757         int substitutions = 0;
 758         long msglen = 0L;
 759
 760         scr_printf("Enter text to be replaced:\n: ");
 761         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 762         if (strlen(srch_str) == 0)
 763                 return;
 764
 765         scr_printf("Enter text to replace it with:\n: ");
 766         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 767
 768         fp = fopen(filename, "r+");
 769         if (fp == NULL)
 770                 return;
 771
 772         wpos = startpos;
 773         fseek(fp, startpos, 0);
 774         strcpy(buf, "");
 775         while (a = getc(fp), a > 0) {
 776                 ++msglen;
 777                 buf[strlen(buf) + 1] = 0;
 778                 buf[strlen(buf)] = a;
 779                 if (strlen(buf) >= strlen(srch_str)) {
 780                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 781                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 782                                 strcpy(ptr, rplc_str);
 783                                 ++substitutions;
 784                         }
 785                 }
 786                 if (strlen(buf) > 384) {
 787                         rpos = ftell(fp);
 788                         fseek(fp, wpos, 0);
 789                         fwrite((char *) buf, 128, 1, fp);
 790                         strcpy(buf, &buf[128]);
 791                         wpos = ftell(fp);
 792                         fseek(fp, rpos, 0);
 793                 }
 794         }
 795         fseek(fp, wpos, 0);
 796         if (strlen(buf) > 0)
 797                 fwrite((char *) buf, strlen(buf), 1, fp);
 798         wpos = ftell(fp);
 799         fclose(fp);
 800         truncate(filename, wpos);
 801         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 802 }
 803
 804 /*
 805  * Function to begin composing a new message
 806  */
 807 int client_make_message(CtdlIPC *ipc,
 808                 char *filename,         /* temporary file name */
 809                 char *recipient,        /* NULL if it's not mail */
 810                 int is_anonymous,
 811                 int format_type,
 812                 int mode,
 813                 char *subject)          /* buffer to store subject line */
 814 {
 815         FILE *fp;
 816         int a, b, e_ex_code;
 817         long beg;
 818         char datestr[SIZ];
 819         char header[SIZ];
 820         char *editor_path = NULL;
 821         int cksum = 0;
 822
 823         if (mode >= 2)
 824         {
 825                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 826                         editor_path = editor_paths[mode-2];
 827                 } else if (strlen(editor_paths[0]) > 0) {
 828                         editor_path = editor_paths[0];
 829                 } else {
 830                         err_printf("*** No editor available, "
 831                                 "using built-in editor\n");
 832                         mode = 0;
 833                 }
 834         }
 835
 836         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 837         header[0] = 0;
 838
 839         if (room_flags & QR_ANONONLY && !recipient) {
 840                 snprintf(header, sizeof header, " ****");
 841         }
 842         else {
 843                 snprintf(header, sizeof header,
 844                         " %s from %s",
 845                         datestr,
 846                         (is_anonymous ? "[anonymous]" : fullname)
 847                         );
 848                 if (strlen(recipient) > 0) {
 849                         size_t tmp = strlen(header);
 850                         snprintf(&header[tmp], sizeof header - tmp,
 851                                 " to %s", recipient);
 852                 }
 853         }
 854         scr_printf("%s\n", header);
 855         if (subject != NULL) if (strlen(subject) > 0) {
 856                 scr_printf("Subject: %s\n", subject);
 857         }
 858
 859         beg = 0L;
 860
 861         if (mode == 1) {
 862                 scr_printf("(Press ctrl-d when finished)\n");
 863         }
 864
 865         if (mode == 0) {
 866                 fp = fopen(filename, "r");
 867                 if (fp != NULL) {
 868                         fmout(screenwidth, fp, NULL, NULL, 0,
 869                                 screenheight, 0, 0);
 870                         beg = ftell(fp);
 871                         fclose(fp);
 872                 } else {
 873                         fp = fopen(filename, "w");
 874                         if (fp == NULL) {
 875                                 err_printf("*** Error opening temp file!\n"
 876                                         "    %s: %s\n",
 877                                         filename, strerror(errno));
 878                         return(1);
 879                         }
 880                         fclose(fp);
 881                 }
 882         }
 883
 884 ME1:    switch (mode) {
 885
 886         case 0:
 887                 fp = fopen(filename, "r+");
 888                 if (fp == NULL) {
 889                         err_printf("*** Error opening temp file!\n"
 890                                 "    %s: %s\n",
 891                                 filename, strerror(errno));
 892                         return(1);
 893                 }
 894                 citedit(ipc, fp);
 895                 fclose(fp);
 896                 goto MECR;
 897
 898         case 1:
 899                 fp = fopen(filename, "a");
 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                 do {
 907                         a = inkey();
 908                         if (a == 255)
 909                                 a = 32;
 910                         if (a == 13)
 911                                 a = 10;
 912                         if (a != 4) {
 913                                 putc(a, fp);
 914                                 scr_putc(a);
 915                         }
 916                         if (a == 10)
 917                                 scr_putc(10);
 918                 } while (a != 4);
 919                 fclose(fp);
 920                 break;
 921
 922         case 2:
 923         default:        /* allow 2+ modes */
 924                 e_ex_code = 1;  /* start with a failed exit code */
 925                 screen_reset();
 926                 stty_ctdl(SB_RESTORE);
 927                 editor_pid = fork();
 928                 cksum = file_checksum(filename);
 929                 if (editor_pid == 0) {
 930                         char tmp[SIZ];
 931
 932                         chmod(filename, 0600);
 933                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 934                         putenv(tmp);
 935                         execlp(editor_path, editor_path, filename, NULL);
 936                         exit(1);
 937                 }
 938                 if (editor_pid > 0)
 939                         do {
 940                                 e_ex_code = 0;
 941                                 b = ka_wait(&e_ex_code);
 942                         } while ((b != editor_pid) && (b >= 0));
 943                 editor_pid = (-1);
 944                 stty_ctdl(0);
 945                 screen_set();
 946                 break;
 947         }
 948
 949 MECR:   if (mode >= 2) {
 950                 if (file_checksum(filename) == cksum) {
 951                         err_printf("*** Aborted message.\n");
 952                         e_ex_code = 1;
 953                 }
 954                 if (e_ex_code == 0) {
 955                         goto MEFIN;
 956                 }
 957                 goto MEABT2;
 958         }
 959
 960         b = keymenu("Entry command (? for options)",
 961                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 962                     "add s<U>bject|"
 963                     "<R>eplace string|<H>old message");
 964
 965         if (b == 'a') goto MEABT;
 966         if (b == 'c') goto ME1;
 967         if (b == 's') goto MEFIN;
 968         if (b == 'p') {
 969                 scr_printf(" %s from %s", datestr, fullname);
 970                 if (strlen(recipient) > 0) {
 971                         scr_printf(" to %s", recipient);
 972                 }
 973                 scr_printf("\n");
 974                 if (subject != NULL) if (strlen(subject) > 0) {
 975                         scr_printf("Subject: %s\n", subject);
 976                 }
 977                 fp = fopen(filename, "r");
 978                 if (fp != NULL) {
 979                         fmout(screenwidth, fp, NULL, NULL,
 980                               ((userflags & US_PAGINATOR) ? 1 : 0),
 981                               screenheight, 0, 0);
 982                         beg = ftell(fp);
 983                         fclose(fp);
 984                 }
 985                 goto MECR;
 986         }
 987         if (b == 'r') {
 988                 replace_string(filename, 0L);
 989                 goto MECR;
 990         }
 991         if (b == 'h') {
 992                 return (2);
 993         }
 994         if (b == 'u') {
 995                 if (subject != NULL) {
 996                         newprompt("Subject: ", subject, 70);
 997                 }
 998                 goto MECR;
 999         }
1000
1001 MEFIN:  return (0);
1002
1003 MEABT:  scr_printf("Are you sure? ");
1004         if (yesno() == 0) {
1005                 goto ME1;
1006         }
1007 MEABT2: unlink(filename);
1008         return (2);
1009 }
1010
1011
1012 #if 0
1013 /*
1014  * Transmit message text to the server.
1015  *
1016  * This loop also implements a "tick" counter that displays the progress, if
1017  * we're sending something that will take a long time to transmit.
1018  */
1019 void transmit_message(CtdlIPC *ipc, FILE *fp)
1020 {
1021         char buf[SIZ];
1022         int ch, a;
1023         long msglen;
1024         time_t lasttick;
1025
1026         fseek(fp, 0L, SEEK_END);
1027         msglen = ftell(fp);
1028         rewind(fp);
1029         lasttick = time(NULL);
1030         strcpy(buf, "");
1031         while (ch = getc(fp), (ch >= 0)) {
1032                 if (ch == 10) {
1033                         if (!strcmp(buf, "000"))
1034                                 strcpy(buf, ">000");
1035                         CtdlIPC_putline(ipc, buf);
1036                         strcpy(buf, "");
1037                 } else {
1038                         a = strlen(buf);
1039                         buf[a + 1] = 0;
1040                         buf[a] = ch;
1041                         if ((ch == 32) && (strlen(buf) > 200)) {
1042                                 buf[a] = 0;
1043                                 if (!strcmp(buf, "000"))
1044                                         strcpy(buf, ">000");
1045                                 CtdlIPC_putline(ipc, buf);
1046                                 strcpy(buf, "");
1047                         }
1048                         if (strlen(buf) > 250) {
1049                                 if (!strcmp(buf, "000"))
1050                                         strcpy(buf, ">000");
1051                                 CtdlIPC_putline(ipc, buf);
1052                                 strcpy(buf, "");
1053                         }
1054                 }
1055
1056                 if ((time(NULL) - lasttick) > 2L) {
1057                         scr_printf(" %3ld%% completed\r",
1058                                ((ftell(fp) * 100L) / msglen));
1059                         scr_flush();
1060                         lasttick = time(NULL);
1061                 }
1062
1063         }
1064         CtdlIPC_putline(ipc, buf);
1065         scr_printf("                \r");
1066         scr_flush();
1067 }
1068 #endif
1069
1070
1071 /*
1072  * Make sure there's room in msg_arr[] for at least one more.
1073  */
1074 void check_msg_arr_size(void) {
1075         if ((num_msgs + 1) > msg_arr_size) {
1076                 msg_arr_size += 512;
1077                 msg_arr = realloc(msg_arr,
1078                         ((sizeof(long)) * msg_arr_size) );
1079         }
1080 }
1081
1082
1083 /*
1084  * break_big_lines()  -  break up lines that are >1024 characters
1085  *                       otherwise the server will truncate
1086  */
1087 void break_big_lines(char *msg) {
1088         char *ptr;
1089         char *break_here;
1090
1091         if (msg == NULL) {
1092                 return;
1093         }
1094
1095         ptr = msg;
1096         while (strlen(ptr) > 1000) {
1097                 break_here = strchr(&ptr[900], ' ');
1098                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1099                         break_here = &ptr[999];
1100                 }
1101                 *break_here = '\n';
1102                 ptr = break_here++;
1103         }
1104 }
1105
1106
1107 /*
1108  * entmsg()  -  edit and create a message
1109  *              returns 0 if message was saved
1110  */
1111 int entmsg(CtdlIPC *ipc,
1112                 int is_reply,   /* nonzero if this was a <R>eply command */
1113                 int c,          /* mode */
1114                 int masquerade  /* prompt for a non-default display name? */
1115 ) {
1116         char buf[SIZ];
1117         int a, b;
1118         int need_recp = 0;
1119         int mode;
1120         long highmsg = 0L;
1121         FILE *fp;
1122         char subject[SIZ];
1123         struct ctdlipcmessage message;
1124         unsigned long *msgarr = NULL;
1125         int r;                  /* IPC response code */
1126
1127         if (c > 0)
1128                 mode = 1;
1129         else
1130                 mode = 0;
1131
1132         strcpy(subject, "");
1133
1134         /*
1135          * First, check to see if we have permission to enter a message in
1136          * this room.  The server will return an error code if we can't.
1137          */
1138         strcpy(message.recipient, "");
1139         strcpy(message.author, "");
1140         strcpy(message.subject, "");
1141         message.text = "";              /* point to "", changes later */
1142         message.anonymous = 0;
1143         message.type = mode;
1144
1145         if (masquerade) {
1146                 newprompt("Display name for this message: ", message.author, 40);
1147         }
1148
1149         r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1150
1151         if (r / 100 != 2 && r / 10 != 57) {
1152                 scr_printf("%s\n", buf);
1153                 return (1);
1154         }
1155
1156         /* Error code 570 is special.  It means that we CAN enter a message
1157          * in this room, but a recipient needs to be specified.
1158          */
1159         need_recp = 0;
1160         if (r / 10 == 57) {
1161                 need_recp = 1;
1162         }
1163
1164         /* If the user is a dumbass, tell them how to type. */
1165         if ((userflags & US_EXPERT) == 0) {
1166                 formout(ipc, "entermsg");
1167         }
1168
1169         /* Handle the selection of a recipient, if necessary. */
1170         strcpy(buf, "");
1171         if (need_recp == 1) {
1172                 if (axlevel >= 2) {
1173                         if (is_reply) {
1174                                 strcpy(buf, reply_to);
1175                         } else {
1176                                 scr_printf("Enter recipient: ");
1177                                 ctdl_getline(buf, (SIZ-100) );
1178                                 if (strlen(buf) == 0)
1179                                         return (1);
1180                         }
1181                 } else
1182                         strcpy(buf, "sysop");
1183         }
1184         strcpy(message.recipient, buf);
1185
1186         if (is_reply) {
1187                 if (strlen(reply_subject) > 0) {
1188                         if (!strncasecmp(reply_subject,
1189                            "Re: ", 3)) {
1190                                 strcpy(message.subject, reply_subject);
1191                         }
1192                         else {
1193                                 snprintf(message.subject,
1194                                         sizeof message.subject,
1195                                         "Re: %s",
1196                                         reply_subject);
1197                         }
1198                 }
1199         }
1200
1201         if (room_flags & QR_ANONOPT) {
1202                 scr_printf("Anonymous (Y/N)? ");
1203                 if (yesno() == 1)
1204                         message.anonymous = 1;
1205         }
1206
1207         /* If it's mail, we've got to check the validity of the recipient... */
1208         if (strlen(message.recipient) > 0) {
1209                 r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1210                 if (r / 100 != 2) {
1211                         scr_printf("%s\n", buf);
1212                         return (1);
1213                 }
1214         }
1215
1216         /* Learn the number of the newest message in in the room, so we can
1217          * tell upon saving whether someone else has posted too.
1218          */
1219         num_msgs = 0;
1220         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1221         if (r / 100 != 1) {
1222                 scr_printf("%s\n", buf);
1223         } else {
1224                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1225                         ;
1226         }
1227
1228         /* Now compose the message... */
1229         if (client_make_message(ipc, temp, message.recipient,
1230            message.anonymous, 0, c, message.subject) != 0) {
1231                 return (2);
1232         }
1233
1234         /* Reopen the temp file that was created, so we can send it */
1235         fp = fopen(temp, "r");
1236
1237         if (!fp || !(message.text = load_message_from_file(fp))) {
1238                 err_printf("*** Internal error while trying to save message!\n"
1239                         "%s: %s\n",
1240                         temp, strerror(errno));
1241                 unlink(temp);
1242                 return(errno);
1243         }
1244
1245         if (fp) fclose(fp);
1246
1247         /* Break lines that are >1024 characters, otherwise the server
1248          * will truncate them.
1249          */
1250         break_big_lines(message.text);
1251
1252         /* Transmit message to the server */
1253         r = CtdlIPCPostMessage(ipc, 1, &message, buf);
1254         if (r / 100 != 4) {
1255                 scr_printf("%s\n", buf);
1256                 return (1);
1257         }
1258
1259         /* Yes, unlink it now, so it doesn't stick around if we crash */
1260         unlink(temp);
1261
1262         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1263
1264         if (msgarr) free(msgarr);
1265         msgarr = NULL;
1266         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1267         if (r / 100 != 1) {
1268                 scr_printf("%s\n", buf);
1269         } else {
1270                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1271                         ;
1272         }
1273
1274         /* get new highest message number in room to set lrp for goto... */
1275         maxmsgnum = msgarr[num_msgs - 1];
1276
1277         /* now see if anyone else has posted in here */
1278         b = (-1);
1279         for (a = 0; a < num_msgs; ++a) {
1280                 if (msgarr[a] > highmsg) {
1281                         ++b;
1282                 }
1283         }
1284         if (msgarr) free(msgarr);
1285         msgarr = NULL;
1286
1287         /* In the Mail> room, this algorithm always counts one message
1288          * higher than in public rooms, so we decrement it by one.
1289          */
1290         if (need_recp) {
1291                 --b;
1292         }
1293
1294         if (b == 1) {
1295                 scr_printf("*** 1 additional message has been entered "
1296                         "in this room by another user.\n");
1297         }
1298         else if (b > 1) {
1299                 scr_printf("*** %d additional messages have been entered "
1300                         "in this room by other users.\n", b);
1301         }
1302     free(message.text);
1303
1304         return(0);
1305 }
1306
1307 /*
1308  * Do editing on a quoted file
1309  */
1310 void process_quote(void)
1311 {
1312         FILE *qfile, *tfile;
1313         char buf[128];
1314         int line, qstart, qend;
1315
1316         /* Unlink the second temp file as soon as it's opened, so it'll get
1317          * deleted even if the program dies
1318          */
1319         qfile = fopen(temp2, "r");
1320         unlink(temp2);
1321
1322         /* Display the quotable text with line numbers added */
1323         line = 0;
1324         fgets(buf, 128, qfile);
1325         while (fgets(buf, 128, qfile) != NULL) {
1326                 scr_printf("%2d %s", ++line, buf);
1327         }
1328         scr_printf("Begin quoting at [ 1] : ");
1329         ctdl_getline(buf, 3);
1330         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1331         scr_printf("  End quoting at [%d] : ", line);
1332         ctdl_getline(buf, 3);
1333         qend = (buf[0] == 0) ? (line) : atoi(buf);
1334         rewind(qfile);
1335         line = 0;
1336         fgets(buf, 128, qfile);
1337         tfile = fopen(temp, "w");
1338         while (fgets(buf, 128, qfile) != NULL) {
1339                 if ((++line >= qstart) && (line <= qend))
1340                         fprintf(tfile, " >%s", buf);
1341         }
1342         fprintf(tfile, " \n");
1343         fclose(qfile);
1344         fclose(tfile);
1345         chmod(temp, 0666);
1346 }
1347
1348
1349
1350 /*
1351  * List the URL's which were embedded in the previous message
1352  */
1353 void list_urls(CtdlIPC *ipc)
1354 {
1355         int i;
1356         char cmd[SIZ];
1357
1358         if (num_urls == 0) {
1359                 scr_printf("There were no URL's in the previous message.\n\n");
1360                 return;
1361         }
1362
1363         for (i = 0; i < num_urls; ++i) {
1364                 scr_printf("%3d %s\n", i + 1, urls[i]);
1365         }
1366
1367         if ((i = num_urls) != 1)
1368                 i = intprompt("Display which one", 1, 1, num_urls);
1369
1370         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1371         system(cmd);
1372         scr_printf("\n");
1373 }
1374
1375
1376 /*
1377  * Run image viewer in background
1378  */
1379 int do_image_view(const char *filename)
1380 {
1381         char cmd[SIZ];
1382         pid_t childpid;
1383
1384         snprintf(cmd, sizeof cmd, imagecmd, filename);
1385         childpid = fork();
1386         if (childpid < 0) {
1387                 unlink(filename);
1388                 return childpid;
1389         }
1390
1391         if (childpid == 0) {
1392                 int retcode;
1393                 pid_t grandchildpid;
1394
1395                 grandchildpid = fork();
1396                 if (grandchildpid < 0) {
1397                         return grandchildpid;
1398                 }
1399
1400                 if (grandchildpid == 0) {
1401                         int nullfd;
1402                         int outfd = -1;
1403                         int errfd = -1;
1404
1405                         nullfd = open("/dev/null", O_WRONLY);
1406                         if (nullfd > -1) {
1407                                 dup2(1, outfd);
1408                                 dup2(2, errfd);
1409                                 dup2(nullfd, 1);
1410                                 dup2(nullfd, 2);
1411                         }
1412                         retcode = system(cmd);
1413                         if (nullfd > -1) {
1414                                 dup2(outfd, 1);
1415                                 dup2(errfd, 2);
1416                                 close(nullfd);
1417                         }
1418                         unlink(filename);
1419                         exit(retcode);
1420                 }
1421
1422                 if (grandchildpid > 0) {
1423                         exit(0);
1424                 }
1425         }
1426
1427         if (childpid > 0) {
1428                 int retcode;
1429
1430                 waitpid(childpid, &retcode, 0);
1431                 return retcode;
1432         }
1433
1434         return -1;
1435 }
1436
1437
1438 /*
1439  * View an image attached to a message
1440  */
1441 void image_view(CtdlIPC *ipc, unsigned long msg)
1442 {
1443         struct parts *ptr = last_message_parts;
1444         char part[SIZ];
1445         int found = 0;
1446
1447         /* Run through available parts */
1448         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1449                 if ((!strcasecmp(ptr->disposition, "attachment")
1450                    || !strcasecmp(ptr->disposition, "inline"))
1451                    && !strncmp(ptr->mimetype, "image/", 6)) {
1452                         found++;
1453                         if (found == 1) {
1454                                 strcpy(part, ptr->number);
1455                         }
1456                 }
1457         }
1458
1459         while (found > 0) {
1460                 if (found > 1)
1461                         strprompt("View which part (0 when done)", part, SIZ-1);
1462                 found = -found;
1463                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1464                         if ((!strcasecmp(ptr->disposition, "attachment")
1465                            || !strcasecmp(ptr->disposition, "inline"))
1466                            && !strncmp(ptr->mimetype, "image/", 6)
1467                            && !strcasecmp(ptr->number, part)) {
1468                                 char tmp[PATH_MAX];
1469                                 char buf[SIZ];
1470                                 void *file = NULL; /* The downloaded file */
1471                                 int r;
1472
1473                                 /* view image */
1474                                 found = -found;
1475                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1476                                 if (r / 100 != 2) {
1477                                         scr_printf("%s\n", buf);
1478                                 } else {
1479                                         size_t len;
1480
1481                                         len = (size_t)extract_long(buf, 0);
1482                                         progress(ipc, len, len);
1483                                         scr_flush();
1484                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1485                                         strcat(tmp, ptr->filename);
1486                                         save_buffer(file, len, tmp);
1487                                         free(file);
1488                                         do_image_view(tmp);
1489                                 }
1490                                 break;
1491                         }
1492                 }
1493                 if (found == 1)
1494                         break;
1495         }
1496 }
1497
1498
1499 /*
1500  * Read the messages in the current room
1501  */
1502 void readmsgs(CtdlIPC *ipc,
1503         enum MessageList c,             /* see listing in citadel_ipc.h */
1504         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1505         int q           /* Number of msgs to read (if c==3) */
1506 ) {
1507         int a, b, e, f, g, start;
1508         int savedpos;
1509         int hold_sw = 0;
1510         char arcflag = 0;
1511         char quotflag = 0;
1512         int hold_color = 0;
1513         char prtfile[PATH_MAX];
1514         char pagin;
1515         char cmd[SIZ];
1516         char targ[ROOMNAMELEN];
1517         char filename[PATH_MAX];
1518         char save_to[PATH_MAX];
1519         void *attachment = NULL;        /* Downloaded attachment */
1520         FILE *dest = NULL;      /* Alternate destination other than screen */
1521         int r;                          /* IPC response code */
1522
1523         if (c < 0)
1524                 b = (num_msgs - 1);
1525         else
1526                 b = 0;
1527
1528         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1529
1530         if (msg_arr) {
1531                 free(msg_arr);
1532                 msg_arr = NULL;
1533         }
1534         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1535         if (r / 100 != 1) {
1536                 scr_printf("%s\n", cmd);
1537         } else {
1538                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1539                         ;
1540         }
1541
1542         if (num_msgs == 0) {    /* TODO look at this later */
1543                 if (c == LastMessages) return;
1544                 scr_printf("*** There are no ");
1545                 if (c == NewMessages) scr_printf("new ");
1546                 if (c == OldMessages) scr_printf("old ");
1547                 scr_printf("messages in this room.\n");
1548                 return;
1549         }
1550
1551         lines_printed = 0;
1552
1553         /* this loop cycles through each message... */
1554         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1555         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1556                 while (msg_arr[a] == 0L) {
1557                         a = a + rdir;
1558                         if ((a == num_msgs) || (a == (-1)))
1559                                 return;
1560                 }
1561
1562 RAGAIN:         pagin = ((arcflag == 0)
1563                          && (quotflag == 0)
1564                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1565
1566                 /* If we're doing a quote, set the screenwidth to 72 */
1567                 if (quotflag) {
1568                         hold_sw = screenwidth;
1569                         screenwidth = 72;
1570                 }
1571
1572                 /* If printing or archiving, set the screenwidth to 80 */
1573                 if (arcflag) {
1574                         hold_sw = screenwidth;
1575                         screenwidth = 80;
1576                 }
1577
1578                 /* clear parts list */
1579                 free_parts(last_message_parts);
1580                 last_message_parts = NULL;
1581
1582                 /* now read the message... */
1583                 e = read_message(ipc, msg_arr[a], pagin, dest);
1584
1585                 /* ...and set the screenwidth back if we have to */
1586                 if ((quotflag) || (arcflag)) {
1587                         screenwidth = hold_sw;
1588                 }
1589 RMSGREAD:       scr_flush();
1590                 highest_msg_read = msg_arr[a];
1591                 if (quotflag) {
1592                         fclose(dest);
1593                         dest = NULL;
1594                         quotflag = 0;
1595                         enable_color = hold_color;
1596                         process_quote();
1597                 }
1598                 if (arcflag) {
1599                         fclose(dest);
1600                         dest = NULL;
1601                         arcflag = 0;
1602                         enable_color = hold_color;
1603                         f = fork();
1604                         if (f == 0) {
1605                                 freopen(prtfile, "r", stdin);
1606                                 screen_reset();
1607                                 stty_ctdl(SB_RESTORE);
1608                                 ka_system(printcmd);
1609                                 stty_ctdl(SB_NO_INTR);
1610                                 screen_set();
1611                                 unlink(prtfile);
1612                                 exit(0);
1613                         }
1614                         if (f > 0)
1615                                 do {
1616                                         g = wait(NULL);
1617                                 } while ((g != f) && (g >= 0));
1618                         scr_printf("Message printed.\n");
1619                 }
1620                 if (rc_alt_semantics && c == 1) {
1621                         char buf[SIZ];
1622
1623                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1624                 }
1625                 if (e == 3)
1626                         return;
1627                 if (((userflags & US_NOPROMPT) || (e == 2))
1628                     && (((room_flags & QR_MAILBOX) == 0)
1629                         || (rc_force_mail_prompts == 0))) {
1630                         e = 'n';
1631                 } else {
1632                         color(DIM_WHITE);
1633                         scr_printf("(");
1634                         color(BRIGHT_WHITE);
1635                         scr_printf("%d", num_msgs - a - 1);
1636                         color(DIM_WHITE);
1637                         scr_printf(") ");
1638
1639                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1640                         if (rc_url_cmd[0] && num_urls)
1641                                 keyopt("<U>RLview ");
1642                         if (has_images > 0 && strlen(imagecmd) > 0)
1643                                 keyopt("<I>mages ");
1644                         keyopt("<?>help -> ");
1645
1646                         do {
1647                                 lines_printed = 2;
1648                                 e = (inkey() & 127);
1649                                 e = tolower(e);
1650 /* return key same as <N> */ if (e == 10)
1651                                         e = 'n';
1652 /* space key same as <N> */ if (e == 32)
1653                                         e = 'n';
1654 /* del/move for aides only */
1655                                     if ((!is_room_aide)
1656                                         && ((room_flags & QR_MAILBOX) ==
1657                                             0)) {
1658                                         if ((e == 'd') || (e == 'm'))
1659                                                 e = 0;
1660                                 }
1661 /* print only if available */
1662                                 if ((e == 'p') && (strlen(printcmd) == 0))
1663                                         e = 0;
1664 /* can't file if not allowed */
1665                                     if ((e == 'f')
1666                                         && (rc_allow_attachments == 0))
1667                                         e = 0;
1668 /* link only if browser avail*/
1669                                     if ((e == 'u')
1670                                         && (strlen(rc_url_cmd) == 0))
1671                                         e = 0;
1672                                 if ((e == 'i')
1673                                         && (!strlen(imagecmd) || !has_images))
1674                                         e = 0;
1675                         } while ((e != 'a') && (e != 'n') && (e != 's')
1676                                  && (e != 'd') && (e != 'm') && (e != 'p')
1677                                  && (e != 'q') && (e != 'b') && (e != 'h')
1678                                  && (e != 'r') && (e != 'f') && (e != '?')
1679                                  && (e != 'u') && (e != 'c') && (e != 'y')
1680                                  && (e != 'i'));
1681                         switch (e) {
1682                         case 's':
1683                                 scr_printf("Stop");
1684                                 break;
1685                         case 'a':
1686                                 scr_printf("Again");
1687                                 break;
1688                         case 'd':
1689                                 scr_printf("Delete");
1690                                 break;
1691                         case 'm':
1692                                 scr_printf("Move");
1693                                 break;
1694                         case 'c':
1695                                 scr_printf("Copy");
1696                                 break;
1697                         case 'n':
1698                                 scr_printf("Next");
1699                                 break;
1700                         case 'p':
1701                                 scr_printf("Print");
1702                                 break;
1703                         case 'q':
1704                                 scr_printf("Quote");
1705                                 break;
1706                         case 'b':
1707                                 scr_printf("Back");
1708                                 break;
1709                         case 'h':
1710                                 scr_printf("Header");
1711                                 break;
1712                         case 'r':
1713                                 scr_printf("Reply");
1714                                 break;
1715                         case 'f':
1716                                 scr_printf("File");
1717                                 break;
1718                         case 'u':
1719                                 scr_printf("URL's");
1720                                 break;
1721                         case 'y':
1722                                 scr_printf("mY next");
1723                                 break;
1724                         case 'i':
1725                                 break;
1726                         case '?':
1727                                 scr_printf("? <help>");
1728                                 break;
1729                         }
1730                         if (userflags & US_DISAPPEAR || e == 'i')
1731                                 scr_printf("\r%79s\r", "");
1732                         else
1733                                 scr_printf("\n");
1734                         scr_flush();
1735                 }
1736                 switch (e) {
1737                 case '?':
1738                         scr_printf("Options available here:\n"
1739                                 " ?  Help (prints this message)\n"
1740                                 " S  Stop reading immediately\n"
1741                                 " A  Again (repeats last message)\n"
1742                                 " N  Next (continue with next message)\n"
1743                                 " Y  My Next (continue with next message you authored)\n"
1744                                 " B  Back (go back to previous message)\n");
1745                         if ((is_room_aide)
1746                             || (room_flags & QR_MAILBOX)) {
1747                                 scr_printf(" D  Delete this message\n"
1748                                         " M  Move message to another room\n");
1749                         }
1750                         scr_printf(" C  Copy message to another room\n");
1751                         if (strlen(printcmd) > 0)
1752                                 scr_printf(" P  Print this message\n");
1753                         scr_printf(
1754                                 " Q  Quote portions of this message for your next post\n"
1755                                 " H  Headers (display message headers only)\n");
1756                         if (is_mail)
1757                                 scr_printf(" R  Reply to this message\n");
1758                         if (rc_allow_attachments)
1759                                 scr_printf
1760                                     (" F  (save attachments to a file)\n");
1761                         if (strlen(rc_url_cmd) > 0)
1762                                 scr_printf(" U  (list URL's for display)\n");
1763                         if (strlen(imagecmd) > 0 && has_images > 0)
1764                                 scr_printf(" I  Image viewer\n");
1765                         scr_printf("\n");
1766                         goto RMSGREAD;
1767                 case 'p':
1768                         scr_flush();
1769                         dest = fopen(prtfile, "w");
1770                         arcflag = 1;
1771                         hold_color = enable_color;
1772                         enable_color = 0;
1773                         goto RAGAIN;
1774                 case 'q':
1775                         scr_flush();
1776                         dest = fopen(temp2, "w");
1777                         quotflag = 1;
1778                         hold_color = enable_color;
1779                         enable_color = 0;
1780                         goto RAGAIN;
1781                 case 's':
1782                         return;
1783                 case 'a':
1784                         goto RAGAIN;
1785                 case 'b':
1786                         a = a - (rdir * 2);
1787                         break;
1788                 case 'm':
1789                 case 'c':
1790                         newprompt("Enter target room: ",
1791                                   targ, ROOMNAMELEN - 1);
1792                         if (strlen(targ) > 0) {
1793                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1794                                                        msg_arr[a], targ, cmd);
1795                                 scr_printf("%s\n", cmd);
1796                                 if (r / 100 == 2)
1797                                         msg_arr[a] = 0L;
1798                         } else {
1799                                 goto RMSGREAD;
1800                         }
1801                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1802                                 goto RMSGREAD;  /* the logic here sucks */
1803                         break;
1804                 case 'f':
1805                         newprompt("Which section? ", filename,
1806                                   ((sizeof filename) - 1));
1807                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1808                                         filename, &attachment, progress, cmd);
1809                         if (r / 100 != 2) {
1810                                 scr_printf("%s\n", cmd);
1811                         } else {
1812                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1813                                 /*
1814                                  * Part 1 won't have a filename; use the
1815                                  * subject of the message instead. IO
1816                                  */
1817                                 if (!strlen(filename))
1818                                         strcpy(filename, reply_subject);
1819                                 destination_directory(save_to, filename);
1820                                 save_buffer(attachment,
1821                                                 extract_unsigned_long(cmd, 0),
1822                                                 save_to);
1823                         }
1824                         if (attachment) {
1825                                 free(attachment);
1826                                 attachment = NULL;
1827                         }
1828                         goto RMSGREAD;
1829                 case 'd':
1830                         scr_printf("*** Delete this message? ");
1831                         if (yesno() == 1) {
1832                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1833                                 scr_printf("%s\n", cmd);
1834                                 if (r / 100 == 2)
1835                                         msg_arr[a] = 0L;
1836                         } else {
1837                                 goto RMSGREAD;
1838                         }
1839                         break;
1840                 case 'h':
1841                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1842                         goto RMSGREAD;
1843                 case 'r':
1844                         savedpos = num_msgs;
1845                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1846                         num_msgs = savedpos;
1847                         goto RMSGREAD;
1848                 case 'u':
1849                         list_urls(ipc);
1850                         goto RMSGREAD;
1851                 case 'i':
1852                         image_view(ipc, msg_arr[a]);
1853                         goto RMSGREAD;
1854             case 'y':
1855           { /* hack hack hack */
1856             /* find the next message by me, stay here if we find nothing */
1857             int finda;
1858             int lasta = a;
1859             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1860               {
1861                 /* This is repetitively dumb, but that's what computers are for.
1862                    We have to load up messages until we find one by us */
1863                 char buf[SIZ];
1864                 int founda = 0;
1865                 struct ctdlipcmessage *msg = NULL;
1866
1867                 /* read the header so we can get 'from=' */
1868                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1869                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1870                         a = lasta; /* meesa current */
1871                         founda = 1;
1872                 }
1873
1874                 free(msg);
1875
1876                 if (founda)
1877                         break; /* for */
1878                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1879               } /* for */
1880           } /* case 'y' */
1881       } /* switch */
1882         }                       /* end for loop */
1883 }                               /* end read routine */
1884
1885
1886
1887
1888 /*
1889  * View and edit a system message
1890  */
1891 void edit_system_message(CtdlIPC *ipc, char *which_message)
1892 {
1893         char desc[SIZ];
1894         char read_cmd[SIZ];
1895         char write_cmd[SIZ];
1896
1897         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1898         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1899         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1900         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1901 }
1902
1903
1904
1905
1906 /*
1907  * Verify the message base
1908  */
1909 void check_message_base(CtdlIPC *ipc)
1910 {
1911         char buf[SIZ];
1912         char *transcript = NULL;
1913         int r;          /* IPC response code */
1914
1915         scr_printf
1916             ("Please read the documentation before running this command.\n"
1917             "Having done so, do you still want to check the message base? ");
1918         if (yesno() == 0)
1919                 return;
1920
1921         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1922         if (r / 100 != 1) {
1923                 scr_printf("%s\n", buf);
1924                 return;
1925         }
1926
1927         while (transcript && strlen(transcript)) {
1928                 lines_printed = 1;
1929                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1930                 remove_token(transcript, 0, '\n');
1931                 pprintf("%s\n", buf);
1932         }
1933         if (transcript) free(transcript);
1934         return;
1935 }
1936
1937
1938 /*
1939  * Loads the contents of a file into memory.  Caller must free the allocated
1940  * memory.
1941  */
1942 char *load_message_from_file(FILE *src)
1943 {
1944         size_t i;
1945         size_t got = 0;
1946         char *dest = NULL;
1947
1948         fseek(src, 0, SEEK_END);
1949         i = ftell(src);
1950         rewind(src);
1951
1952         dest = (char *)calloc(1, i + 1);
1953         if (!dest)
1954                 return NULL;
1955
1956         while (got < i) {
1957                 size_t g;
1958
1959                 g = fread(dest + got, 1, i - got, src);
1960                 got += g;
1961                 if (g < i - got) {
1962                         /* Interrupted system call, keep going */
1963                         if (errno == EINTR)
1964                                 continue;
1965                         /* At this point we have either EOF or error */
1966                         i = got;
1967                         break;
1968                 }
1969                 dest[i] = 0;
1970         }
1971
1972         return dest;
1973 }