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                                 color(DIM_WHITE);
 712                                 pprintf("Part ");
 713                                 color(BRIGHT_MAGENTA);
 714                                 pprintf("%s", ptr->number);
 715                                 color(DIM_WHITE);
 716                                 pprintf(": ");
 717                                 color(BRIGHT_CYAN);
 718                                 pprintf("%s", ptr->filename);
 719                                 color(DIM_WHITE);
 720                                 pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 721                                 if (!strncmp(ptr->mimetype, "image/", 6))
 722                                         has_images++;
 723                         }
 724                 }
 725         }
 726
 727         /* Save the attachments info for later */
 728         last_message_parts = message->attachments;
 729
 730         /* Now we're done */
 731         free(message->text);
 732         free(message);
 733
 734         if (pagin == 1 && !dest)
 735                 color(DIM_WHITE);
 736         stty_ctdl(0);
 737         return (fr);
 738 }
 739
 740 /*
 741  * replace string function for the built-in editor
 742  */
 743 void replace_string(char *filename, long int startpos)
 744 {
 745         char buf[512];
 746         char srch_str[128];
 747         char rplc_str[128];
 748         FILE *fp;
 749         int a;
 750         long rpos, wpos;
 751         char *ptr;
 752         int substitutions = 0;
 753         long msglen = 0L;
 754
 755         scr_printf("Enter text to be replaced:\n: ");
 756         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 757         if (strlen(srch_str) == 0)
 758                 return;
 759
 760         scr_printf("Enter text to replace it with:\n: ");
 761         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 762
 763         fp = fopen(filename, "r+");
 764         if (fp == NULL)
 765                 return;
 766
 767         wpos = startpos;
 768         fseek(fp, startpos, 0);
 769         strcpy(buf, "");
 770         while (a = getc(fp), a > 0) {
 771                 ++msglen;
 772                 buf[strlen(buf) + 1] = 0;
 773                 buf[strlen(buf)] = a;
 774                 if (strlen(buf) >= strlen(srch_str)) {
 775                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 776                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 777                                 strcpy(ptr, rplc_str);
 778                                 ++substitutions;
 779                         }
 780                 }
 781                 if (strlen(buf) > 384) {
 782                         rpos = ftell(fp);
 783                         fseek(fp, wpos, 0);
 784                         fwrite((char *) buf, 128, 1, fp);
 785                         strcpy(buf, &buf[128]);
 786                         wpos = ftell(fp);
 787                         fseek(fp, rpos, 0);
 788                 }
 789         }
 790         fseek(fp, wpos, 0);
 791         if (strlen(buf) > 0)
 792                 fwrite((char *) buf, strlen(buf), 1, fp);
 793         wpos = ftell(fp);
 794         fclose(fp);
 795         truncate(filename, wpos);
 796         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 797 }
 798
 799 /*
 800  * Function to begin composing a new message
 801  */
 802 int client_make_message(CtdlIPC *ipc,
 803                 char *filename,         /* temporary file name */
 804                 char *recipient,        /* NULL if it's not mail */
 805                 int is_anonymous,
 806                 int format_type,
 807                 int mode,
 808                 char *subject)          /* buffer to store subject line */
 809 {
 810         FILE *fp;
 811         int a, b, e_ex_code;
 812         long beg;
 813         char datestr[SIZ];
 814         char header[SIZ];
 815         char *editor_path = NULL;
 816         int cksum = 0;
 817
 818         if (mode >= 2)
 819         {
 820                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 821                         editor_path = editor_paths[mode-2];
 822                 } else if (strlen(editor_paths[0]) > 0) {
 823                         editor_path = editor_paths[0];
 824                 } else {
 825                         err_printf("*** No editor available, "
 826                                 "using built-in editor\n");
 827                         mode = 0;
 828                 }
 829         }
 830
 831         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 832         header[0] = 0;
 833
 834         if (room_flags & QR_ANONONLY && !recipient) {
 835                 snprintf(header, sizeof header, " ****");
 836         }
 837         else {
 838                 snprintf(header, sizeof header,
 839                         " %s from %s",
 840                         datestr,
 841                         (is_anonymous ? "[anonymous]" : fullname)
 842                         );
 843                 if (strlen(recipient) > 0) {
 844                         size_t tmp = strlen(header);
 845                         snprintf(&header[tmp], sizeof header - tmp,
 846                                 " to %s", recipient);
 847                 }
 848         }
 849         scr_printf("%s\n", header);
 850         if (subject != NULL) if (strlen(subject) > 0) {
 851                 scr_printf("Subject: %s\n", subject);
 852         }
 853
 854         beg = 0L;
 855
 856         if (mode == 1) {
 857                 scr_printf("(Press ctrl-d when finished)\n");
 858         }
 859
 860         if (mode == 0) {
 861                 fp = fopen(filename, "r");
 862                 if (fp != NULL) {
 863                         fmout(screenwidth, fp, NULL, NULL, 0,
 864                                 screenheight, 0, 0);
 865                         beg = ftell(fp);
 866                         fclose(fp);
 867                 } else {
 868                         fp = fopen(filename, "w");
 869                         if (fp == NULL) {
 870                                 err_printf("*** Error opening temp file!\n"
 871                                         "    %s: %s\n",
 872                                         filename, strerror(errno));
 873                         return(1);
 874                         }
 875                         fclose(fp);
 876                 }
 877         }
 878
 879 ME1:    switch (mode) {
 880
 881         case 0:
 882                 fp = fopen(filename, "r+");
 883                 if (fp == NULL) {
 884                         err_printf("*** Error opening temp file!\n"
 885                                 "    %s: %s\n",
 886                                 filename, strerror(errno));
 887                         return(1);
 888                 }
 889                 citedit(ipc, fp);
 890                 fclose(fp);
 891                 goto MECR;
 892
 893         case 1:
 894                 fp = fopen(filename, "a");
 895                 if (fp == NULL) {
 896                         err_printf("*** Error opening temp file!\n"
 897                                 "    %s: %s\n",
 898                                 filename, strerror(errno));
 899                         return(1);
 900                 }
 901                 do {
 902                         a = inkey();
 903                         if (a == 255)
 904                                 a = 32;
 905                         if (a == 13)
 906                                 a = 10;
 907                         if (a != 4) {
 908                                 putc(a, fp);
 909                                 scr_putc(a);
 910                         }
 911                         if (a == 10)
 912                                 scr_putc(10);
 913                 } while (a != 4);
 914                 fclose(fp);
 915                 break;
 916
 917         case 2:
 918         default:        /* allow 2+ modes */
 919                 e_ex_code = 1;  /* start with a failed exit code */
 920                 screen_reset();
 921                 stty_ctdl(SB_RESTORE);
 922                 editor_pid = fork();
 923                 cksum = file_checksum(filename);
 924                 if (editor_pid == 0) {
 925                         char tmp[SIZ];
 926
 927                         chmod(filename, 0600);
 928                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 929                         putenv(tmp);
 930                         execlp(editor_path, editor_path, filename, NULL);
 931                         exit(1);
 932                 }
 933                 if (editor_pid > 0)
 934                         do {
 935                                 e_ex_code = 0;
 936                                 b = ka_wait(&e_ex_code);
 937                         } while ((b != editor_pid) && (b >= 0));
 938                 editor_pid = (-1);
 939                 stty_ctdl(0);
 940                 screen_set();
 941                 break;
 942         }
 943
 944 MECR:   if (mode >= 2) {
 945                 if (file_checksum(filename) == cksum) {
 946                         err_printf("*** Aborted message.\n");
 947                         e_ex_code = 1;
 948                 }
 949                 if (e_ex_code == 0) {
 950                         goto MEFIN;
 951                 }
 952                 goto MEABT2;
 953         }
 954
 955         b = keymenu("Entry command (? for options)",
 956                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 957                     "add s<U>bject|"
 958                     "<R>eplace string|<H>old message");
 959
 960         if (b == 'a') goto MEABT;
 961         if (b == 'c') goto ME1;
 962         if (b == 's') goto MEFIN;
 963         if (b == 'p') {
 964                 scr_printf(" %s from %s", datestr, fullname);
 965                 if (strlen(recipient) > 0) {
 966                         scr_printf(" to %s", recipient);
 967                 }
 968                 scr_printf("\n");
 969                 if (subject != NULL) if (strlen(subject) > 0) {
 970                         scr_printf("Subject: %s\n", subject);
 971                 }
 972                 fp = fopen(filename, "r");
 973                 if (fp != NULL) {
 974                         fmout(screenwidth, fp, NULL, NULL,
 975                               ((userflags & US_PAGINATOR) ? 1 : 0),
 976                               screenheight, 0, 0);
 977                         beg = ftell(fp);
 978                         fclose(fp);
 979                 }
 980                 goto MECR;
 981         }
 982         if (b == 'r') {
 983                 replace_string(filename, 0L);
 984                 goto MECR;
 985         }
 986         if (b == 'h') {
 987                 return (2);
 988         }
 989         if (b == 'u') {
 990                 if (subject != NULL) {
 991                         newprompt("Subject: ", subject, 70);
 992                 }
 993                 goto MECR;
 994         }
 995
 996 MEFIN:  return (0);
 997
 998 MEABT:  scr_printf("Are you sure? ");
 999         if (yesno() == 0) {
1000                 goto ME1;
1001         }
1002 MEABT2: unlink(filename);
1003         return (2);
1004 }
1005
1006
1007 #if 0
1008 /*
1009  * Transmit message text to the server.
1010  *
1011  * This loop also implements a "tick" counter that displays the progress, if
1012  * we're sending something that will take a long time to transmit.
1013  */
1014 void transmit_message(CtdlIPC *ipc, FILE *fp)
1015 {
1016         char buf[SIZ];
1017         int ch, a;
1018         long msglen;
1019         time_t lasttick;
1020
1021         fseek(fp, 0L, SEEK_END);
1022         msglen = ftell(fp);
1023         rewind(fp);
1024         lasttick = time(NULL);
1025         strcpy(buf, "");
1026         while (ch = getc(fp), (ch >= 0)) {
1027                 if (ch == 10) {
1028                         if (!strcmp(buf, "000"))
1029                                 strcpy(buf, ">000");
1030                         CtdlIPC_putline(ipc, buf);
1031                         strcpy(buf, "");
1032                 } else {
1033                         a = strlen(buf);
1034                         buf[a + 1] = 0;
1035                         buf[a] = ch;
1036                         if ((ch == 32) && (strlen(buf) > 200)) {
1037                                 buf[a] = 0;
1038                                 if (!strcmp(buf, "000"))
1039                                         strcpy(buf, ">000");
1040                                 CtdlIPC_putline(ipc, buf);
1041                                 strcpy(buf, "");
1042                         }
1043                         if (strlen(buf) > 250) {
1044                                 if (!strcmp(buf, "000"))
1045                                         strcpy(buf, ">000");
1046                                 CtdlIPC_putline(ipc, buf);
1047                                 strcpy(buf, "");
1048                         }
1049                 }
1050
1051                 if ((time(NULL) - lasttick) > 2L) {
1052                         scr_printf(" %3ld%% completed\r",
1053                                ((ftell(fp) * 100L) / msglen));
1054                         scr_flush();
1055                         lasttick = time(NULL);
1056                 }
1057
1058         }
1059         CtdlIPC_putline(ipc, buf);
1060         scr_printf("                \r");
1061         scr_flush();
1062 }
1063 #endif
1064
1065
1066 /*
1067  * Make sure there's room in msg_arr[] for at least one more.
1068  */
1069 void check_msg_arr_size(void) {
1070         if ((num_msgs + 1) > msg_arr_size) {
1071                 msg_arr_size += 512;
1072                 msg_arr = realloc(msg_arr,
1073                         ((sizeof(long)) * msg_arr_size) );
1074         }
1075 }
1076
1077
1078 /*
1079  * break_big_lines()  -  break up lines that are >1024 characters
1080  *                       otherwise the server will truncate
1081  */
1082 void break_big_lines(char *msg) {
1083         char *ptr;
1084         char *break_here;
1085
1086         if (msg == NULL) {
1087                 return;
1088         }
1089
1090         ptr = msg;
1091         while (strlen(ptr) > 1000) {
1092                 break_here = strchr(&ptr[900], ' ');
1093                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1094                         break_here = &ptr[999];
1095                 }
1096                 *break_here = '\n';
1097                 ptr = break_here++;
1098         }
1099 }
1100
1101
1102 /*
1103  * entmsg()  -  edit and create a message
1104  *              returns 0 if message was saved
1105  */
1106 int entmsg(CtdlIPC *ipc,
1107                 int is_reply,   /* nonzero if this was a <R>eply command */
1108                 int c,          /* mode */
1109                 int masquerade  /* prompt for a non-default display name? */
1110 ) {
1111         char buf[SIZ];
1112         int a, b;
1113         int need_recp = 0;
1114         int mode;
1115         long highmsg = 0L;
1116         FILE *fp;
1117         char subject[SIZ];
1118         struct ctdlipcmessage message;
1119         unsigned long *msgarr = NULL;
1120         int r;                  /* IPC response code */
1121
1122         if (c > 0)
1123                 mode = 1;
1124         else
1125                 mode = 0;
1126
1127         strcpy(subject, "");
1128
1129         /*
1130          * First, check to see if we have permission to enter a message in
1131          * this room.  The server will return an error code if we can't.
1132          */
1133         strcpy(message.recipient, "");
1134         strcpy(message.author, "");
1135         strcpy(message.subject, "");
1136         message.text = "";              /* point to "", changes later */
1137         message.anonymous = 0;
1138         message.type = mode;
1139
1140         if (masquerade) {
1141                 newprompt("Display name for this message: ", message.author, 40);
1142         }
1143
1144         r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1145
1146         if (r / 100 != 2 && r / 10 != 57) {
1147                 scr_printf("%s\n", buf);
1148                 return (1);
1149         }
1150
1151         /* Error code 570 is special.  It means that we CAN enter a message
1152          * in this room, but a recipient needs to be specified.
1153          */
1154         need_recp = 0;
1155         if (r / 10 == 57) {
1156                 need_recp = 1;
1157         }
1158
1159         /* If the user is a dumbass, tell them how to type. */
1160         if ((userflags & US_EXPERT) == 0) {
1161                 formout(ipc, "entermsg");
1162         }
1163
1164         /* Handle the selection of a recipient, if necessary. */
1165         strcpy(buf, "");
1166         if (need_recp == 1) {
1167                 if (axlevel >= 2) {
1168                         if (is_reply) {
1169                                 strcpy(buf, reply_to);
1170                         } else {
1171                                 scr_printf("Enter recipient: ");
1172                                 ctdl_getline(buf, (SIZ-100) );
1173                                 if (strlen(buf) == 0)
1174                                         return (1);
1175                         }
1176                 } else
1177                         strcpy(buf, "sysop");
1178         }
1179         strcpy(message.recipient, buf);
1180
1181         if (is_reply) {
1182                 if (strlen(reply_subject) > 0) {
1183                         if (!strncasecmp(reply_subject,
1184                            "Re: ", 3)) {
1185                                 strcpy(message.subject, reply_subject);
1186                         }
1187                         else {
1188                                 snprintf(message.subject,
1189                                         sizeof message.subject,
1190                                         "Re: %s",
1191                                         reply_subject);
1192                         }
1193                 }
1194         }
1195
1196         if (room_flags & QR_ANONOPT) {
1197                 scr_printf("Anonymous (Y/N)? ");
1198                 if (yesno() == 1)
1199                         message.anonymous = 1;
1200         }
1201
1202         /* If it's mail, we've got to check the validity of the recipient... */
1203         if (strlen(message.recipient) > 0) {
1204                 r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1205                 if (r / 100 != 2) {
1206                         scr_printf("%s\n", buf);
1207                         return (1);
1208                 }
1209         }
1210
1211         /* Learn the number of the newest message in in the room, so we can
1212          * tell upon saving whether someone else has posted too.
1213          */
1214         num_msgs = 0;
1215         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1216         if (r / 100 != 1) {
1217                 scr_printf("%s\n", buf);
1218         } else {
1219                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1220                         ;
1221         }
1222
1223         /* Now compose the message... */
1224         if (client_make_message(ipc, temp, message.recipient,
1225            message.anonymous, 0, c, message.subject) != 0) {
1226                 return (2);
1227         }
1228
1229         /* Reopen the temp file that was created, so we can send it */
1230         fp = fopen(temp, "r");
1231
1232         if (!fp || !(message.text = load_message_from_file(fp))) {
1233                 err_printf("*** Internal error while trying to save message!\n"
1234                         "%s: %s\n",
1235                         temp, strerror(errno));
1236                 unlink(temp);
1237                 return(errno);
1238         }
1239
1240         if (fp) fclose(fp);
1241
1242         /* Break lines that are >1024 characters, otherwise the server
1243          * will truncate them.
1244          */
1245         break_big_lines(message.text);
1246
1247         /* Transmit message to the server */
1248         r = CtdlIPCPostMessage(ipc, 1, &message, buf);
1249         if (r / 100 != 4) {
1250                 scr_printf("%s\n", buf);
1251                 return (1);
1252         }
1253
1254         /* Yes, unlink it now, so it doesn't stick around if we crash */
1255         unlink(temp);
1256
1257         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1258
1259         if (msgarr) free(msgarr);
1260         msgarr = NULL;
1261         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1262         if (r / 100 != 1) {
1263                 scr_printf("%s\n", buf);
1264         } else {
1265                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1266                         ;
1267         }
1268
1269         /* get new highest message number in room to set lrp for goto... */
1270         maxmsgnum = msgarr[num_msgs - 1];
1271
1272         /* now see if anyone else has posted in here */
1273         b = (-1);
1274         for (a = 0; a < num_msgs; ++a) {
1275                 if (msgarr[a] > highmsg) {
1276                         ++b;
1277                 }
1278         }
1279         if (msgarr) free(msgarr);
1280         msgarr = NULL;
1281
1282         /* In the Mail> room, this algorithm always counts one message
1283          * higher than in public rooms, so we decrement it by one.
1284          */
1285         if (need_recp) {
1286                 --b;
1287         }
1288
1289         if (b == 1) {
1290                 scr_printf("*** 1 additional message has been entered "
1291                         "in this room by another user.\n");
1292         }
1293         else if (b > 1) {
1294                 scr_printf("*** %d additional messages have been entered "
1295                         "in this room by other users.\n", b);
1296         }
1297     free(message.text);
1298
1299         return(0);
1300 }
1301
1302 /*
1303  * Do editing on a quoted file
1304  */
1305 void process_quote(void)
1306 {
1307         FILE *qfile, *tfile;
1308         char buf[128];
1309         int line, qstart, qend;
1310
1311         /* Unlink the second temp file as soon as it's opened, so it'll get
1312          * deleted even if the program dies
1313          */
1314         qfile = fopen(temp2, "r");
1315         unlink(temp2);
1316
1317         /* Display the quotable text with line numbers added */
1318         line = 0;
1319         fgets(buf, 128, qfile);
1320         while (fgets(buf, 128, qfile) != NULL) {
1321                 scr_printf("%2d %s", ++line, buf);
1322         }
1323         scr_printf("Begin quoting at [ 1] : ");
1324         ctdl_getline(buf, 3);
1325         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1326         scr_printf("  End quoting at [%d] : ", line);
1327         ctdl_getline(buf, 3);
1328         qend = (buf[0] == 0) ? (line) : atoi(buf);
1329         rewind(qfile);
1330         line = 0;
1331         fgets(buf, 128, qfile);
1332         tfile = fopen(temp, "w");
1333         while (fgets(buf, 128, qfile) != NULL) {
1334                 if ((++line >= qstart) && (line <= qend))
1335                         fprintf(tfile, " >%s", buf);
1336         }
1337         fprintf(tfile, " \n");
1338         fclose(qfile);
1339         fclose(tfile);
1340         chmod(temp, 0666);
1341 }
1342
1343
1344
1345 /*
1346  * List the URL's which were embedded in the previous message
1347  */
1348 void list_urls(CtdlIPC *ipc)
1349 {
1350         int i;
1351         char cmd[SIZ];
1352
1353         if (num_urls == 0) {
1354                 scr_printf("There were no URL's in the previous message.\n\n");
1355                 return;
1356         }
1357
1358         for (i = 0; i < num_urls; ++i) {
1359                 scr_printf("%3d %s\n", i + 1, urls[i]);
1360         }
1361
1362         if ((i = num_urls) != 1)
1363                 i = intprompt("Display which one", 1, 1, num_urls);
1364
1365         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1366         system(cmd);
1367         scr_printf("\n");
1368 }
1369
1370
1371 /*
1372  * Run image viewer in background
1373  */
1374 int do_image_view(const char *filename)
1375 {
1376         char cmd[SIZ];
1377         pid_t childpid;
1378
1379         snprintf(cmd, sizeof cmd, imagecmd, filename);
1380         childpid = fork();
1381         if (childpid < 0) {
1382                 unlink(filename);
1383                 return childpid;
1384         }
1385
1386         if (childpid == 0) {
1387                 int retcode;
1388                 pid_t grandchildpid;
1389
1390                 grandchildpid = fork();
1391                 if (grandchildpid < 0) {
1392                         return grandchildpid;
1393                 }
1394
1395                 if (grandchildpid == 0) {
1396                         int nullfd;
1397                         int outfd = -1;
1398                         int errfd = -1;
1399
1400                         nullfd = open("/dev/null", O_WRONLY);
1401                         if (nullfd > -1) {
1402                                 dup2(1, outfd);
1403                                 dup2(2, errfd);
1404                                 dup2(nullfd, 1);
1405                                 dup2(nullfd, 2);
1406                         }
1407                         retcode = system(cmd);
1408                         if (nullfd > -1) {
1409                                 dup2(outfd, 1);
1410                                 dup2(errfd, 2);
1411                                 close(nullfd);
1412                         }
1413                         unlink(filename);
1414                         exit(retcode);
1415                 }
1416
1417                 if (grandchildpid > 0) {
1418                         exit(0);
1419                 }
1420         }
1421
1422         if (childpid > 0) {
1423                 int retcode;
1424
1425                 waitpid(childpid, &retcode, 0);
1426                 return retcode;
1427         }
1428
1429         return -1;
1430 }
1431
1432
1433 /*
1434  * View an image attached to a message
1435  */
1436 void image_view(CtdlIPC *ipc, unsigned long msg)
1437 {
1438         struct parts *ptr = last_message_parts;
1439         char part[SIZ];
1440         int found = 0;
1441
1442         /* Run through available parts */
1443         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1444                 if ((!strcasecmp(ptr->disposition, "attachment")
1445                    || !strcasecmp(ptr->disposition, "inline"))
1446                    && !strncmp(ptr->mimetype, "image/", 6)) {
1447                         found++;
1448                         if (found == 1) {
1449                                 strcpy(part, ptr->number);
1450                         }
1451                 }
1452         }
1453
1454         while (found > 0) {
1455                 if (found > 1)
1456                         strprompt("View which part (0 when done)", part, SIZ-1);
1457                 found = -found;
1458                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1459                         if ((!strcasecmp(ptr->disposition, "attachment")
1460                            || !strcasecmp(ptr->disposition, "inline"))
1461                            && !strncmp(ptr->mimetype, "image/", 6)
1462                            && !strcasecmp(ptr->number, part)) {
1463                                 char tmp[PATH_MAX];
1464                                 char buf[SIZ];
1465                                 void *file = NULL; /* The downloaded file */
1466                                 int r;
1467
1468                                 /* view image */
1469                                 found = -found;
1470                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1471                                 if (r / 100 != 2) {
1472                                         scr_printf("%s\n", buf);
1473                                 } else {
1474                                         size_t len;
1475
1476                                         len = (size_t)extract_long(buf, 0);
1477                                         progress(ipc, len, len);
1478                                         scr_flush();
1479                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1480                                         strcat(tmp, ptr->filename);
1481                                         save_buffer(file, len, tmp);
1482                                         free(file);
1483                                         do_image_view(tmp);
1484                                 }
1485                                 break;
1486                         }
1487                 }
1488                 if (found == 1)
1489                         break;
1490         }
1491 }
1492
1493
1494 /*
1495  * Read the messages in the current room
1496  */
1497 void readmsgs(CtdlIPC *ipc,
1498         enum MessageList c,             /* see listing in citadel_ipc.h */
1499         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1500         int q           /* Number of msgs to read (if c==3) */
1501 ) {
1502         int a, b, e, f, g, start;
1503         int savedpos;
1504         int hold_sw = 0;
1505         char arcflag = 0;
1506         char quotflag = 0;
1507         int hold_color = 0;
1508         char prtfile[PATH_MAX];
1509         char pagin;
1510         char cmd[SIZ];
1511         char targ[ROOMNAMELEN];
1512         char filename[PATH_MAX];
1513         char save_to[PATH_MAX];
1514         void *attachment = NULL;        /* Downloaded attachment */
1515         FILE *dest = NULL;      /* Alternate destination other than screen */
1516         int r;                          /* IPC response code */
1517
1518         if (c < 0)
1519                 b = (num_msgs - 1);
1520         else
1521                 b = 0;
1522
1523         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1524
1525         if (msg_arr) {
1526                 free(msg_arr);
1527                 msg_arr = NULL;
1528         }
1529         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1530         if (r / 100 != 1) {
1531                 scr_printf("%s\n", cmd);
1532         } else {
1533                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1534                         ;
1535         }
1536
1537         if (num_msgs == 0) {    /* TODO look at this later */
1538                 if (c == LastMessages) return;
1539                 scr_printf("*** There are no ");
1540                 if (c == NewMessages) scr_printf("new ");
1541                 if (c == OldMessages) scr_printf("old ");
1542                 scr_printf("messages in this room.\n");
1543                 return;
1544         }
1545
1546         lines_printed = 0;
1547
1548         /* this loop cycles through each message... */
1549         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1550         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1551                 while (msg_arr[a] == 0L) {
1552                         a = a + rdir;
1553                         if ((a == num_msgs) || (a == (-1)))
1554                                 return;
1555                 }
1556
1557 RAGAIN:         pagin = ((arcflag == 0)
1558                          && (quotflag == 0)
1559                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1560
1561                 /* If we're doing a quote, set the screenwidth to 72 */
1562                 if (quotflag) {
1563                         hold_sw = screenwidth;
1564                         screenwidth = 72;
1565                 }
1566
1567                 /* If printing or archiving, set the screenwidth to 80 */
1568                 if (arcflag) {
1569                         hold_sw = screenwidth;
1570                         screenwidth = 80;
1571                 }
1572
1573                 /* clear parts list */
1574                 free_parts(last_message_parts);
1575                 last_message_parts = NULL;
1576
1577                 /* now read the message... */
1578                 e = read_message(ipc, msg_arr[a], pagin, dest);
1579
1580                 /* ...and set the screenwidth back if we have to */
1581                 if ((quotflag) || (arcflag)) {
1582                         screenwidth = hold_sw;
1583                 }
1584 RMSGREAD:       scr_flush();
1585                 highest_msg_read = msg_arr[a];
1586                 if (quotflag) {
1587                         fclose(dest);
1588                         dest = NULL;
1589                         quotflag = 0;
1590                         enable_color = hold_color;
1591                         process_quote();
1592                 }
1593                 if (arcflag) {
1594                         fclose(dest);
1595                         dest = NULL;
1596                         arcflag = 0;
1597                         enable_color = hold_color;
1598                         f = fork();
1599                         if (f == 0) {
1600                                 freopen(prtfile, "r", stdin);
1601                                 screen_reset();
1602                                 stty_ctdl(SB_RESTORE);
1603                                 ka_system(printcmd);
1604                                 stty_ctdl(SB_NO_INTR);
1605                                 screen_set();
1606                                 unlink(prtfile);
1607                                 exit(0);
1608                         }
1609                         if (f > 0)
1610                                 do {
1611                                         g = wait(NULL);
1612                                 } while ((g != f) && (g >= 0));
1613                         scr_printf("Message printed.\n");
1614                 }
1615                 if (rc_alt_semantics && c == 1) {
1616                         char buf[SIZ];
1617
1618                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1619                 }
1620                 if (e == 3)
1621                         return;
1622                 if (((userflags & US_NOPROMPT) || (e == 2))
1623                     && (((room_flags & QR_MAILBOX) == 0)
1624                         || (rc_force_mail_prompts == 0))) {
1625                         e = 'n';
1626                 } else {
1627                         color(DIM_WHITE);
1628                         scr_printf("(");
1629                         color(BRIGHT_WHITE);
1630                         scr_printf("%d", num_msgs - a - 1);
1631                         color(DIM_WHITE);
1632                         scr_printf(") ");
1633
1634                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1635                         if (rc_url_cmd[0] && num_urls)
1636                                 keyopt("<U>RLview ");
1637                         if (has_images > 0 && strlen(imagecmd) > 0)
1638                                 keyopt("<I>mages ");
1639                         keyopt("<?>help -> ");
1640
1641                         do {
1642                                 lines_printed = 2;
1643                                 e = (inkey() & 127);
1644                                 e = tolower(e);
1645 /* return key same as <N> */ if (e == 10)
1646                                         e = 'n';
1647 /* space key same as <N> */ if (e == 32)
1648                                         e = 'n';
1649 /* del/move for aides only */
1650                                     if ((!is_room_aide)
1651                                         && ((room_flags & QR_MAILBOX) ==
1652                                             0)) {
1653                                         if ((e == 'd') || (e == 'm'))
1654                                                 e = 0;
1655                                 }
1656 /* print only if available */
1657                                 if ((e == 'p') && (strlen(printcmd) == 0))
1658                                         e = 0;
1659 /* can't file if not allowed */
1660                                     if ((e == 'f')
1661                                         && (rc_allow_attachments == 0))
1662                                         e = 0;
1663 /* link only if browser avail*/
1664                                     if ((e == 'u')
1665                                         && (strlen(rc_url_cmd) == 0))
1666                                         e = 0;
1667                                 if ((e == 'i')
1668                                         && (!strlen(imagecmd) || !has_images))
1669                                         e = 0;
1670                         } while ((e != 'a') && (e != 'n') && (e != 's')
1671                                  && (e != 'd') && (e != 'm') && (e != 'p')
1672                                  && (e != 'q') && (e != 'b') && (e != 'h')
1673                                  && (e != 'r') && (e != 'f') && (e != '?')
1674                                  && (e != 'u') && (e != 'c') && (e != 'y')
1675                                  && (e != 'i'));
1676                         switch (e) {
1677                         case 's':
1678                                 scr_printf("Stop");
1679                                 break;
1680                         case 'a':
1681                                 scr_printf("Again");
1682                                 break;
1683                         case 'd':
1684                                 scr_printf("Delete");
1685                                 break;
1686                         case 'm':
1687                                 scr_printf("Move");
1688                                 break;
1689                         case 'c':
1690                                 scr_printf("Copy");
1691                                 break;
1692                         case 'n':
1693                                 scr_printf("Next");
1694                                 break;
1695                         case 'p':
1696                                 scr_printf("Print");
1697                                 break;
1698                         case 'q':
1699                                 scr_printf("Quote");
1700                                 break;
1701                         case 'b':
1702                                 scr_printf("Back");
1703                                 break;
1704                         case 'h':
1705                                 scr_printf("Header");
1706                                 break;
1707                         case 'r':
1708                                 scr_printf("Reply");
1709                                 break;
1710                         case 'f':
1711                                 scr_printf("File");
1712                                 break;
1713                         case 'u':
1714                                 scr_printf("URL's");
1715                                 break;
1716                         case 'y':
1717                                 scr_printf("mY next");
1718                                 break;
1719                         case 'i':
1720                                 break;
1721                         case '?':
1722                                 scr_printf("? <help>");
1723                                 break;
1724                         }
1725                         if (userflags & US_DISAPPEAR || e == 'i')
1726                                 scr_printf("\r%79s\r", "");
1727                         else
1728                                 scr_printf("\n");
1729                         scr_flush();
1730                 }
1731                 switch (e) {
1732                 case '?':
1733                         scr_printf("Options available here:\n"
1734                                 " ?  Help (prints this message)\n"
1735                                 " S  Stop reading immediately\n"
1736                                 " A  Again (repeats last message)\n"
1737                                 " N  Next (continue with next message)\n"
1738                                 " Y  My Next (continue with next message you authored)\n"
1739                                 " B  Back (go back to previous message)\n");
1740                         if ((is_room_aide)
1741                             || (room_flags & QR_MAILBOX)) {
1742                                 scr_printf(" D  Delete this message\n"
1743                                         " M  Move message to another room\n");
1744                         }
1745                         scr_printf(" C  Copy message to another room\n");
1746                         if (strlen(printcmd) > 0)
1747                                 scr_printf(" P  Print this message\n");
1748                         scr_printf(
1749                                 " Q  Quote portions of this message for your next post\n"
1750                                 " H  Headers (display message headers only)\n");
1751                         if (is_mail)
1752                                 scr_printf(" R  Reply to this message\n");
1753                         if (rc_allow_attachments)
1754                                 scr_printf
1755                                     (" F  (save attachments to a file)\n");
1756                         if (strlen(rc_url_cmd) > 0)
1757                                 scr_printf(" U  (list URL's for display)\n");
1758                         if (strlen(imagecmd) > 0 && has_images > 0)
1759                                 scr_printf(" I  Image viewer\n");
1760                         scr_printf("\n");
1761                         goto RMSGREAD;
1762                 case 'p':
1763                         scr_flush();
1764                         dest = fopen(prtfile, "w");
1765                         arcflag = 1;
1766                         hold_color = enable_color;
1767                         enable_color = 0;
1768                         goto RAGAIN;
1769                 case 'q':
1770                         scr_flush();
1771                         dest = fopen(temp2, "w");
1772                         quotflag = 1;
1773                         hold_color = enable_color;
1774                         enable_color = 0;
1775                         goto RAGAIN;
1776                 case 's':
1777                         return;
1778                 case 'a':
1779                         goto RAGAIN;
1780                 case 'b':
1781                         a = a - (rdir * 2);
1782                         break;
1783                 case 'm':
1784                 case 'c':
1785                         newprompt("Enter target room: ",
1786                                   targ, ROOMNAMELEN - 1);
1787                         if (strlen(targ) > 0) {
1788                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1789                                                        msg_arr[a], targ, cmd);
1790                                 scr_printf("%s\n", cmd);
1791                                 if (r / 100 == 2)
1792                                         msg_arr[a] = 0L;
1793                         } else {
1794                                 goto RMSGREAD;
1795                         }
1796                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1797                                 goto RMSGREAD;  /* the logic here sucks */
1798                         break;
1799                 case 'f':
1800                         newprompt("Which section? ", filename,
1801                                   ((sizeof filename) - 1));
1802                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1803                                         filename, &attachment, progress, cmd);
1804                         if (r / 100 != 2) {
1805                                 scr_printf("%s\n", cmd);
1806                         } else {
1807                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1808                                 /*
1809                                  * Part 1 won't have a filename; use the
1810                                  * subject of the message instead. IO
1811                                  */
1812                                 if (!strlen(filename))
1813                                         strcpy(filename, reply_subject);
1814                                 destination_directory(save_to, filename);
1815                                 save_buffer(attachment,
1816                                                 extract_unsigned_long(cmd, 0),
1817                                                 save_to);
1818                         }
1819                         if (attachment) {
1820                                 free(attachment);
1821                                 attachment = NULL;
1822                         }
1823                         goto RMSGREAD;
1824                 case 'd':
1825                         scr_printf("*** Delete this message? ");
1826                         if (yesno() == 1) {
1827                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1828                                 scr_printf("%s\n", cmd);
1829                                 if (r / 100 == 2)
1830                                         msg_arr[a] = 0L;
1831                         } else {
1832                                 goto RMSGREAD;
1833                         }
1834                         break;
1835                 case 'h':
1836                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1837                         goto RMSGREAD;
1838                 case 'r':
1839                         savedpos = num_msgs;
1840                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1841                         num_msgs = savedpos;
1842                         goto RMSGREAD;
1843                 case 'u':
1844                         list_urls(ipc);
1845                         goto RMSGREAD;
1846                 case 'i':
1847                         image_view(ipc, msg_arr[a]);
1848                         goto RMSGREAD;
1849             case 'y':
1850           { /* hack hack hack */
1851             /* find the next message by me, stay here if we find nothing */
1852             int finda;
1853             int lasta = a;
1854             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1855               {
1856                 /* This is repetitively dumb, but that's what computers are for.
1857                    We have to load up messages until we find one by us */
1858                 char buf[SIZ];
1859                 int founda = 0;
1860                 struct ctdlipcmessage *msg = NULL;
1861
1862                 /* read the header so we can get 'from=' */
1863                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1864                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1865                         a = lasta; /* meesa current */
1866                         founda = 1;
1867                 }
1868
1869                 free(msg);
1870
1871                 if (founda)
1872                         break; /* for */
1873                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1874               } /* for */
1875           } /* case 'y' */
1876       } /* switch */
1877         }                       /* end for loop */
1878 }                               /* end read routine */
1879
1880
1881
1882
1883 /*
1884  * View and edit a system message
1885  */
1886 void edit_system_message(CtdlIPC *ipc, char *which_message)
1887 {
1888         char desc[SIZ];
1889         char read_cmd[SIZ];
1890         char write_cmd[SIZ];
1891
1892         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1893         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1894         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1895         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1896 }
1897
1898
1899
1900
1901 /*
1902  * Verify the message base
1903  */
1904 void check_message_base(CtdlIPC *ipc)
1905 {
1906         char buf[SIZ];
1907         char *transcript = NULL;
1908         int r;          /* IPC response code */
1909
1910         scr_printf
1911             ("Please read the documentation before running this command.\n"
1912             "Having done so, do you still want to check the message base? ");
1913         if (yesno() == 0)
1914                 return;
1915
1916         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1917         if (r / 100 != 1) {
1918                 scr_printf("%s\n", buf);
1919                 return;
1920         }
1921
1922         while (transcript && strlen(transcript)) {
1923                 lines_printed = 1;
1924                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1925                 remove_token(transcript, 0, '\n');
1926                 pprintf("%s\n", buf);
1927         }
1928         if (transcript) free(transcript);
1929         return;
1930 }
1931
1932
1933 /*
1934  * Loads the contents of a file into memory.  Caller must free the allocated
1935  * memory.
1936  */
1937 char *load_message_from_file(FILE *src)
1938 {
1939         size_t i;
1940         size_t got = 0;
1941         char *dest = NULL;
1942
1943         fseek(src, 0, SEEK_END);
1944         i = ftell(src);
1945         rewind(src);
1946
1947         dest = (char *)calloc(1, i + 1);
1948         if (!dest)
1949                 return NULL;
1950
1951         while (got < i) {
1952                 size_t g;
1953
1954                 g = fread(dest + got, 1, i - got, src);
1955                 got += g;
1956                 if (g < i - got) {
1957                         /* Interrupted system call, keep going */
1958                         if (errno == EINTR)
1959                                 continue;
1960                         /* At this point we have either EOF or error */
1961                         i = got;
1962                         break;
1963                 }
1964                 dest[i] = 0;
1965         }
1966
1967         return dest;
1968 }