citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel message support routines
   5  * see copyright.txt for copyright information
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <sys/types.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <sys/wait.h>
  20 #include <sys/stat.h>
  21
  22 #if TIME_WITH_SYS_TIME
  23 # include <sys/time.h>
  24 # include <time.h>
  25 #else
  26 # if HAVE_SYS_TIME_H
  27 #  include <sys/time.h>
  28 # else
  29 #  include <time.h>
  30 # endif
  31 #endif
  32
  33 #ifdef HAVE_PTHREAD_H
  34 #include <pthread.h>
  35 #endif
  36
  37 #include <stdarg.h>
  38 #include "citadel.h"
  39 #include "citadel_ipc.h"
  40 #include "citadel_decls.h"
  41 #include "messages.h"
  42 #include "commands.h"
  43 #include "rooms.h"
  44 #include "tools.h"
  45 #include "html.h"
  46 #ifndef HAVE_SNPRINTF
  47 #include "snprintf.h"
  48 #endif
  49 #include "screen.h"
  50
  51 #define MAXWORDBUF SIZ
  52 #define NO_REPLY_TO     "nobody ... xxxxxx"
  53
  54 char reply_to[SIZ];
  55 char reply_subject[SIZ];
  56
  57 struct cittext {
  58         struct cittext *next;
  59         char text[MAXWORDBUF];
  60 };
  61
  62 void stty_ctdl(int cmd);
  63 int haschar(const char *st, int ch);
  64 void ctdl_getline(char *string, int lim);
  65 int file_checksum(char *filename);
  66 void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
  67
  68 unsigned long *msg_arr = NULL;
  69 int msg_arr_size = 0;
  70 int num_msgs;
  71 char rc_alt_semantics;
  72 extern char room_name[];
  73 extern unsigned room_flags;
  74 extern unsigned room_flags2;
  75 extern long highest_msg_read;
  76 extern char temp[];
  77 extern char temp2[];
  78 extern int screenwidth;
  79 extern int screenheight;
  80 extern long maxmsgnum;
  81 extern char is_mail;
  82 extern char is_aide;
  83 extern char is_room_aide;
  84 extern char fullname[];
  85 extern char axlevel;
  86 extern unsigned userflags;
  87 extern char sigcaught;
  88 extern char printcmd[];
  89 extern int rc_allow_attachments;
  90 extern int rc_display_message_numbers;
  91 extern int rc_force_mail_prompts;
  92 extern int editor_pid;
  93 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  94 int num_urls = 0;
  95 char urls[MAXURLS][SIZ];
  96 char imagecmd[SIZ];
  97 int has_images = 0;                             /* Current msg has images */
  98 struct parts *last_message_parts = NULL;        /* Parts from last msg */
  99
 100
 101
 102 void ka_sigcatch(int signum)
 103 {
 104         alarm(S_KEEPALIVE);
 105         signal(SIGALRM, ka_sigcatch);
 106         CtdlIPCNoop(ipc_for_signal_handlers);
 107 }
 108
 109
 110 /*
 111  * server keep-alive version of wait() (needed for external editor)
 112  */
 113 pid_t ka_wait(int *kstatus)
 114 {
 115         pid_t p;
 116
 117         alarm(S_KEEPALIVE);
 118         signal(SIGALRM, ka_sigcatch);
 119         do {
 120                 errno = 0;
 121                 p = wait(kstatus);
 122         } while (errno == EINTR);
 123         signal(SIGALRM, SIG_IGN);
 124         alarm(0);
 125         return (p);
 126 }
 127
 128
 129 /*
 130  * version of system() that uses ka_wait()
 131  */
 132 int ka_system(char *shc)
 133 {
 134         pid_t childpid;
 135         pid_t waitpid;
 136         int retcode;
 137
 138         childpid = fork();
 139         if (childpid < 0) {
 140                 color(BRIGHT_RED);
 141                 perror("Cannot fork");
 142                 color(DIM_WHITE);
 143                 return ((pid_t) childpid);
 144         }
 145
 146         if (childpid == 0) {
 147                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 148                 exit(127);
 149         }
 150
 151         if (childpid > 0) {
 152                 do {
 153                         waitpid = ka_wait(&retcode);
 154                 } while (waitpid != childpid);
 155                 return (retcode);
 156         }
 157
 158         return (-1);
 159 }
 160
 161
 162
 163 /*
 164  * add a newline to the buffer...
 165  */
 166 void add_newline(struct cittext *textlist)
 167 {
 168         struct cittext *ptr;
 169
 170         ptr = textlist;
 171         while (ptr->next != NULL)
 172                 ptr = ptr->next;
 173
 174         while (ptr->text[strlen(ptr->text) - 1] == 32)
 175                 ptr->text[strlen(ptr->text) - 1] = 0;
 176         /* strcat(ptr->text,"\n"); */
 177
 178         ptr->next = (struct cittext *)
 179             malloc(sizeof(struct cittext));
 180         ptr = ptr->next;
 181         ptr->next = NULL;
 182         strcpy(ptr->text, "");
 183 }
 184
 185
 186 /*
 187  * add a word to the buffer...
 188  */
 189 void add_word(struct cittext *textlist, char *wordbuf)
 190 {
 191         struct cittext *ptr;
 192
 193         ptr = textlist;
 194         while (ptr->next != NULL)
 195                 ptr = ptr->next;
 196
 197         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 198                 ptr->next = (struct cittext *)
 199                     malloc(sizeof(struct cittext));
 200                 ptr = ptr->next;
 201                 ptr->next = NULL;
 202                 strcpy(ptr->text, "");
 203         }
 204
 205         strcat(ptr->text, wordbuf);
 206         strcat(ptr->text, " ");
 207 }
 208
 209
 210 /*
 211  * begin editing of an opened file pointed to by fp
 212  */
 213 void citedit(CtdlIPC *ipc, FILE * fp)
 214 {
 215         int a, prev, finished, b, last_space;
 216         int appending = 0;
 217         struct cittext *textlist = NULL;
 218         struct cittext *ptr;
 219         char wordbuf[MAXWORDBUF];
 220
 221         /* first, load the text into the buffer */
 222         fseek(fp, 0L, 0);
 223         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 224         textlist->next = NULL;
 225         strcpy(textlist->text, "");
 226
 227         strcpy(wordbuf, "");
 228         prev = (-1);
 229         while (a = getc(fp), a >= 0) {
 230                 appending = 1;
 231                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 232                         add_word(textlist, wordbuf);
 233                         strcpy(wordbuf, "");
 234                         if ((prev == 13) || (prev == 10)) {
 235                                 add_word(textlist, "\n");
 236                                 add_newline(textlist);
 237                                 add_word(textlist, "");
 238                         }
 239                 } else {
 240                         wordbuf[strlen(wordbuf) + 1] = 0;
 241                         wordbuf[strlen(wordbuf)] = a;
 242                 }
 243                 if (strlen(wordbuf) + 3 > screenwidth) {
 244                         add_word(textlist, wordbuf);
 245                         strcpy(wordbuf, "");
 246                 }
 247                 prev = a;
 248         }
 249
 250         /* get text */
 251         finished = 0;
 252         prev = (appending ? 13 : (-1));
 253         strcpy(wordbuf, "");
 254         async_ka_start();
 255         do {
 256                 a = inkey();
 257                 if (a == 10)
 258                         a = 13;
 259                 if (a == 9)
 260                         a = 32;
 261                 if (a == 127)
 262                         a = 8;
 263
 264                 if ((a != 32) && (prev == 13)) {
 265                         add_word(textlist, "\n");
 266                         scr_printf(" ");
 267                 }
 268
 269                 if ((a == 32) && (prev == 13)) {
 270                         add_word(textlist, "\n");
 271                         add_newline(textlist);
 272                 }
 273
 274                 if (a == 8) {
 275                         if (strlen(wordbuf) > 0) {
 276                                 wordbuf[strlen(wordbuf) - 1] = 0;
 277                                 scr_putc(8);
 278                                 scr_putc(32);
 279                                 scr_putc(8);
 280                         }
 281                 } else if (a == 23) {
 282                         do {
 283                                 wordbuf[strlen(wordbuf) - 1] = 0;
 284                                 scr_putc(8);
 285                                 scr_putc(32);
 286                                 scr_putc(8);
 287                         } while (strlen(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 288                 } else if (a == 13) {
 289                         scr_printf("\n");
 290                         if (strlen(wordbuf) == 0)
 291                                 finished = 1;
 292                         else {
 293                                 for (b = 0; b < strlen(wordbuf); ++b)
 294                                         if (wordbuf[b] == 32) {
 295                                                 wordbuf[b] = 0;
 296                                                 add_word(textlist,
 297                                                          wordbuf);
 298                                                 strcpy(wordbuf,
 299                                                        &wordbuf[b + 1]);
 300                                                 b = 0;
 301                                         }
 302                                 add_word(textlist, wordbuf);
 303                                 strcpy(wordbuf, "");
 304                         }
 305                 } else {
 306                         scr_putc(a);
 307                         wordbuf[strlen(wordbuf) + 1] = 0;
 308                         wordbuf[strlen(wordbuf)] = a;
 309                 }
 310                 if ((strlen(wordbuf) + 3) > screenwidth) {
 311                         last_space = (-1);
 312                         for (b = 0; b < strlen(wordbuf); ++b)
 313                                 if (wordbuf[b] == 32)
 314                                         last_space = b;
 315                         if (last_space >= 0) {
 316                                 for (b = 0; b < strlen(wordbuf); ++b)
 317                                         if (wordbuf[b] == 32) {
 318                                                 wordbuf[b] = 0;
 319                                                 add_word(textlist,
 320                                                          wordbuf);
 321                                                 strcpy(wordbuf,
 322                                                        &wordbuf[b + 1]);
 323                                                 b = 0;
 324                                         }
 325                                 for (b = 0; b < strlen(wordbuf); ++b) {
 326                                         scr_putc(8);
 327                                         scr_putc(32);
 328                                         scr_putc(8);
 329                                 }
 330                                 scr_printf("\n%s", wordbuf);
 331                         } else {
 332                                 add_word(textlist, wordbuf);
 333                                 strcpy(wordbuf, "");
 334                                 scr_printf("\n");
 335                         }
 336                 }
 337                 prev = a;
 338         } while (finished == 0);
 339         async_ka_end();
 340
 341         /* write the buffer back to disk */
 342         fseek(fp, 0L, 0);
 343         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 344                 fprintf(fp, "%s", ptr->text);
 345         }
 346         putc(10, fp);
 347         fflush(fp);
 348         ftruncate(fileno(fp), ftell(fp));
 349
 350         /* and deallocate the memory we used */
 351         while (textlist != NULL) {
 352                 ptr = textlist->next;
 353                 free(textlist);
 354                 textlist = ptr;
 355         }
 356 }
 357
 358
 359 /*
 360  * Free the struct parts
 361  */
 362 void free_parts(struct parts *p)
 363 {
 364         struct parts *a_part = p;
 365
 366         while (a_part) {
 367                 struct parts *q;
 368
 369                 q = a_part;
 370                 a_part = a_part->next;
 371                 free(q);
 372         }
 373 }
 374
 375
 376 /*
 377  * Read a message from the server
 378  */
 379 int read_message(CtdlIPC *ipc,
 380         long num,   /* message number */
 381         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 382         FILE *dest) /* Destination file, NULL for screen */
 383 {
 384         char buf[SIZ];
 385         char now[SIZ];
 386         int format_type = 0;
 387         int fr = 0;
 388         int nhdr = 0;
 389         struct ctdlipcmessage *message = NULL;
 390         int r;                          /* IPC response code */
 391         char *converted_text = NULL;
 392         char *lineptr;
 393         char *nextline;
 394         char *searchptr;
 395         int i;
 396         char ch;
 397         int linelen;
 398         int final_line_is_blank = 0;
 399
 400         has_images = 0;
 401
 402         sigcaught = 0;
 403         stty_ctdl(1);
 404
 405         strcpy(reply_to, NO_REPLY_TO);
 406         strcpy(reply_subject, "");
 407
 408         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 409                                 (can_do_msg4 ? 4 : 0),
 410                                 &message, buf);
 411         if (r / 100 != 1) {
 412                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 413                 ++lines_printed;
 414                 lines_printed =
 415                     checkpagin(lines_printed, pagin, screenheight);
 416                 stty_ctdl(0);
 417                 return (0);
 418         }
 419
 420         if (dest) {
 421                 fprintf(dest, "\n ");
 422         } else {
 423                 scr_printf("\n");
 424                 ++lines_printed;
 425                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 426                 if (pagin != 2)
 427                         scr_printf(" ");
 428         }
 429         if (pagin == 1 && !dest) {
 430                 color(BRIGHT_CYAN);
 431         }
 432
 433         /* View headers only */
 434         if (pagin == 2) {
 435                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 436                                 message->nhdr ? "yes" : "no",
 437                                 message->author, message->type,
 438                                 message->msgid);
 439                 if (strlen(message->subject)) {
 440                         pprintf("subj=%s\n", message->subject);
 441                 }
 442                 if (strlen(message->email)) {
 443                         pprintf("rfca=%s\n", message->email);
 444                 }
 445                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 446                                 message->hnod, message->room,
 447                                 message->node,
 448                                 asctime(localtime(&message->time)));
 449                 if (strlen(message->recipient)) {
 450                         pprintf("rcpt=%s\n", message->recipient);
 451                 }
 452                 if (message->attachments) {
 453                         struct parts *ptr;
 454
 455                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 456                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 457                                         ptr->name, ptr->filename, ptr->number,
 458                                         ptr->disposition, ptr->mimetype,
 459                                         ptr->length);
 460                         }
 461                 }
 462                 pprintf("\n");
 463                 stty_ctdl(0);
 464                 return (0);
 465         }
 466
 467         if (rc_display_message_numbers) {
 468                 if (dest) {
 469                         fprintf(dest, "[#%s] ", message->msgid);
 470                 } else {
 471                         color(DIM_WHITE);
 472                         scr_printf("[");
 473                         color(BRIGHT_WHITE);
 474                         scr_printf("#%s", message->msgid);
 475                         color(DIM_WHITE);
 476                         scr_printf("] ");
 477                 }
 478         }
 479         if (nhdr == 1 && !is_room_aide) {
 480                 if (dest) {
 481                         fprintf(dest, " ****");
 482                 } else {
 483                         scr_printf(" ****");
 484                 }
 485         } else {
 486                 fmt_date(now, sizeof now, message->time, 0);
 487                 if (dest) {
 488                         fprintf(dest, "%s from %s ", now, message->author);
 489                         if (strlen(message->email)) {
 490                                 fprintf(dest, "<%s> ", message->email);
 491                         }
 492                 } else {
 493                         color(BRIGHT_CYAN);
 494                         scr_printf("%s ", now);
 495                         color(DIM_WHITE);
 496                         scr_printf("from ");
 497                         color(BRIGHT_CYAN);
 498                         scr_printf("%s ", message->author);
 499                         if (strlen(message->email)) {
 500                                 color(DIM_WHITE);
 501                                 scr_printf("<");
 502                                 color(BRIGHT_BLUE);
 503                                 scr_printf("%s", message->email);
 504                                         color(DIM_WHITE);
 505                                 scr_printf("> ");
 506                         }
 507                 }
 508                 if (strlen(message->node)) {
 509                         if ((room_flags & QR_NETWORK)
 510                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 511                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 512                                 if (strlen(message->email) == 0) {
 513                                         if (dest) {
 514                                                 fprintf(dest, "@%s ", message->node);
 515                                         } else {
 516                                                 color(DIM_WHITE);
 517                                                 scr_printf("@");
 518                                                 color(BRIGHT_YELLOW);
 519                                                 scr_printf("%s ", message->node);
 520                                         }
 521                                 }
 522                         }
 523                 }
 524                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 525                     && (strlen(message->hnod)) && (!strlen(message->email))) {
 526                         if (dest) {
 527                                 fprintf(dest, "(%s) ", message->hnod);
 528                         } else {
 529                                 color(DIM_WHITE);
 530                                 scr_printf("(");
 531                                 color(BRIGHT_WHITE);
 532                                 scr_printf("%s", message->hnod);
 533                                 color(DIM_WHITE);
 534                                 scr_printf(") ");
 535                         }
 536                 }
 537                 if (strcasecmp(message->room, room_name) && (strlen(message->email) == 0)) {
 538                         if (dest) {
 539                                 fprintf(dest, "in %s> ", message->room);
 540                         } else {
 541                                 color(DIM_WHITE);
 542                                 scr_printf("in ");
 543                                 color(BRIGHT_MAGENTA);
 544                                 scr_printf("%s> ", message->room);
 545                         }
 546                 }
 547                 if (strlen(message->recipient)) {
 548                         if (dest) {
 549                                 fprintf(dest, "to %s ", message->recipient);
 550                         } else {
 551                                 color(DIM_WHITE);
 552                                 scr_printf("to ");
 553                                 color(BRIGHT_CYAN);
 554                                 scr_printf("%s ", message->recipient);
 555                         }
 556                 }
 557         }
 558
 559         if (dest) {
 560                 fprintf(dest, "\n");
 561         } else {
 562                 scr_printf("\n");
 563         }
 564
 565         /* Set the reply-to address to an Internet e-mail address if possible
 566          */
 567         if (message->email != NULL) if (strlen(message->email) > 0) {
 568                 if (strlen(message->author) > 0) {
 569                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 570                 }
 571                 else {
 572                         safestrncpy(reply_to, message->email, sizeof reply_to);
 573                 }
 574         }
 575
 576         /* But if we can't do that, set it to a Citadel address.
 577          */
 578         if (!strcmp(reply_to, NO_REPLY_TO)) {
 579                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 580                          message->author, message->node);
 581         }
 582
 583         if (!dest) {
 584                 ++lines_printed;
 585                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 586         }
 587
 588         if (message->subject != NULL) {
 589                 safestrncpy(reply_subject, message->subject,
 590                                                 sizeof reply_subject);
 591                 if (strlen(message->subject) > 0) {
 592                         if (dest) {
 593                                 fprintf(dest, "Subject: %s\n",
 594                                                         message->subject);
 595                         } else {
 596                                 color(DIM_WHITE);
 597                                 scr_printf("Subject: ");
 598                                 color(BRIGHT_CYAN);
 599                                 scr_printf("%s\n", message->subject);
 600                                 ++lines_printed;
 601                                 lines_printed = checkpagin(lines_printed,
 602                                                 pagin, screenheight);
 603                         }
 604                 }
 605         }
 606
 607         if (pagin == 1 && !dest) {
 608                 color(BRIGHT_WHITE);
 609         }
 610
 611         /******* end of header output, start of message text output *******/
 612
 613         /*
 614          * Convert HTML to plain text, formatting for the actual width
 615          * of the client screen.
 616          */
 617         if (!strcasecmp(message->content_type, "text/html")) {
 618                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 619                 if (converted_text != NULL) {
 620                         free(message->text);
 621                         message->text = converted_text;
 622                         format_type = 1;
 623                 }
 624         }
 625
 626         /* Text/plain is a different type */
 627         if (!strcasecmp(message->content_type, "text/plain")) {
 628                 format_type = 1;
 629         }
 630
 631         /* Extract URL's */
 632         num_urls = 0;   /* Start with a clean slate */
 633         searchptr = message->text;
 634         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 635                 searchptr = strstr(searchptr, "http://");
 636                 if (searchptr != NULL) {
 637                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 638                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 639                                 ch = urls[num_urls][i];
 640                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 641                                     ch == ' ' || ch == '\n') {
 642                                         urls[num_urls][i] = 0;
 643                                         break;
 644                                 }
 645                         }
 646                         num_urls++;
 647                         ++searchptr;
 648                 }
 649         }
 650
 651         /*
 652          * Here we go
 653          */
 654         if (format_type == 0) {
 655                 fr = fmout(screenwidth, NULL, message->text, dest,
 656                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 657         } else {
 658                 /* renderer for text/plain */
 659
 660                 lineptr = message->text;
 661
 662                 do {
 663                         nextline = strchr(lineptr, '\n');
 664                         if (nextline != NULL) {
 665                                 *nextline = 0;
 666                                 ++nextline;
 667                                 if (*nextline == 0) nextline = NULL;
 668                         }
 669
 670                         if (sigcaught == 0) {
 671                                 linelen = strlen(lineptr);
 672                                 if (lineptr[linelen-1] == '\r') {
 673                                         lineptr[--linelen] = 0;
 674                                 }
 675                                 if (dest) {
 676                                         fprintf(dest, "%s\n", lineptr);
 677                                 } else {
 678                                         scr_printf("%s\n", lineptr);
 679                                         lines_printed = lines_printed + 1 +
 680                                             (linelen / screenwidth);
 681                                         lines_printed =
 682                                             checkpagin(lines_printed, pagin,
 683                                                        screenheight);
 684                                 }
 685                         }
 686                         if (lineptr[0] == 0) final_line_is_blank = 1;
 687                         else final_line_is_blank = 0;
 688                         lineptr = nextline;
 689                 } while (nextline);
 690                 fr = sigcaught;
 691         }
 692         if (!final_line_is_blank) {
 693                 if (dest) {
 694                         fprintf(dest, "\n");
 695                 }
 696                 else {
 697                         scr_printf("\n");
 698                         ++lines_printed;
 699                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 700                 }
 701         }
 702
 703         /* Enumerate any attachments */
 704         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 705                 struct parts *ptr;
 706
 707                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 708                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 709                            || (!strcasecmp(ptr->disposition, "inline"))
 710                            || (!strcasecmp(ptr->disposition, ""))
 711                         ) {
 712                                 if ( (strcasecmp(ptr->number, message->mime_chosen))
 713                                    && (strlen(ptr->mimetype) > 0)
 714                                 ) {
 715                                         color(DIM_WHITE);
 716                                         pprintf("Part ");
 717                                         color(BRIGHT_MAGENTA);
 718                                         pprintf("%s", ptr->number);
 719                                         color(DIM_WHITE);
 720                                         pprintf(": ");
 721                                         color(BRIGHT_CYAN);
 722                                         pprintf("%s", ptr->filename);
 723                                         color(DIM_WHITE);
 724                                         pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 725                                         if (!strncmp(ptr->mimetype, "image/", 6)) {
 726                                                 has_images++;
 727                                         }
 728                                 }
 729                         }
 730                 }
 731         }
 732
 733         /* Save the attachments info for later */
 734         last_message_parts = message->attachments;
 735
 736         /* Now we're done */
 737         free(message->text);
 738         free(message);
 739
 740         if (pagin == 1 && !dest)
 741                 color(DIM_WHITE);
 742         stty_ctdl(0);
 743         return (fr);
 744 }
 745
 746 /*
 747  * replace string function for the built-in editor
 748  */
 749 void replace_string(char *filename, long int startpos)
 750 {
 751         char buf[512];
 752         char srch_str[128];
 753         char rplc_str[128];
 754         FILE *fp;
 755         int a;
 756         long rpos, wpos;
 757         char *ptr;
 758         int substitutions = 0;
 759         long msglen = 0L;
 760
 761         scr_printf("Enter text to be replaced:\n: ");
 762         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 763         if (strlen(srch_str) == 0)
 764                 return;
 765
 766         scr_printf("Enter text to replace it with:\n: ");
 767         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 768
 769         fp = fopen(filename, "r+");
 770         if (fp == NULL)
 771                 return;
 772
 773         wpos = startpos;
 774         fseek(fp, startpos, 0);
 775         strcpy(buf, "");
 776         while (a = getc(fp), a > 0) {
 777                 ++msglen;
 778                 buf[strlen(buf) + 1] = 0;
 779                 buf[strlen(buf)] = a;
 780                 if (strlen(buf) >= strlen(srch_str)) {
 781                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 782                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 783                                 strcpy(ptr, rplc_str);
 784                                 ++substitutions;
 785                         }
 786                 }
 787                 if (strlen(buf) > 384) {
 788                         rpos = ftell(fp);
 789                         fseek(fp, wpos, 0);
 790                         fwrite((char *) buf, 128, 1, fp);
 791                         strcpy(buf, &buf[128]);
 792                         wpos = ftell(fp);
 793                         fseek(fp, rpos, 0);
 794                 }
 795         }
 796         fseek(fp, wpos, 0);
 797         if (strlen(buf) > 0)
 798                 fwrite((char *) buf, strlen(buf), 1, fp);
 799         wpos = ftell(fp);
 800         fclose(fp);
 801         truncate(filename, wpos);
 802         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 803 }
 804
 805 /*
 806  * Function to begin composing a new message
 807  */
 808 int client_make_message(CtdlIPC *ipc,
 809                                                 char *filename,         /* temporary file name */
 810                                                 char *recipient,        /* NULL if it's not mail */
 811                                                 int is_anonymous,
 812                                                 int format_type,
 813                                                 int mode,
 814                                                 char *subject,          /* buffer to store subject line */
 815                                                 int subject_required)
 816 {
 817         FILE *fp;
 818         int a, b, e_ex_code;
 819         long beg;
 820         char datestr[SIZ];
 821         char header[SIZ];
 822         char *editor_path = NULL;
 823         int cksum = 0;
 824
 825         if (mode >= 2)
 826         {
 827                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 828                         editor_path = editor_paths[mode-2];
 829                 } else if (strlen(editor_paths[0]) > 0) {
 830                         editor_path = editor_paths[0];
 831                 } else {
 832                         err_printf("*** No editor available, "
 833                                 "using built-in editor\n");
 834                         mode = 0;
 835                 }
 836         }
 837
 838         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 839         header[0] = 0;
 840
 841         if (room_flags & QR_ANONONLY && !recipient) {
 842                 snprintf(header, sizeof header, " ****");
 843         }
 844         else {
 845                 snprintf(header, sizeof header,
 846                         " %s from %s",
 847                         datestr,
 848                         (is_anonymous ? "[anonymous]" : fullname)
 849                         );
 850                 if (strlen(recipient) > 0) {
 851                         size_t tmp = strlen(header);
 852                         snprintf(&header[tmp], sizeof header - tmp,
 853                                 " to %s", recipient);
 854                 }
 855         }
 856         scr_printf("%s\n", header);
 857         if (subject != NULL) if (strlen(subject) > 0) {
 858                 scr_printf("Subject: %s\n", subject);
 859         }
 860
 861         if ( (subject_required) && (strlen(subject) == 0) ) {
 862                 newprompt("Subject: ", subject, 70);
 863         }
 864
 865         beg = 0L;
 866
 867         if (mode == 1) {
 868                 scr_printf("(Press ctrl-d when finished)\n");
 869         }
 870
 871         if (mode == 0) {
 872                 fp = fopen(filename, "r");
 873                 if (fp != NULL) {
 874                         fmout(screenwidth, fp, NULL, NULL, 0,
 875                                 screenheight, 0, 0);
 876                         beg = ftell(fp);
 877                         fclose(fp);
 878                 } else {
 879                         fp = fopen(filename, "w");
 880                         if (fp == NULL) {
 881                                 err_printf("*** Error opening temp file!\n"
 882                                         "    %s: %s\n",
 883                                         filename, strerror(errno));
 884                         return(1);
 885                         }
 886                         fclose(fp);
 887                 }
 888         }
 889
 890 ME1:    switch (mode) {
 891
 892         case 0:
 893                 fp = fopen(filename, "r+");
 894                 if (fp == NULL) {
 895                         err_printf("*** Error opening temp file!\n"
 896                                 "    %s: %s\n",
 897                                 filename, strerror(errno));
 898                         return(1);
 899                 }
 900                 citedit(ipc, fp);
 901                 fclose(fp);
 902                 goto MECR;
 903
 904         case 1:
 905                 fp = fopen(filename, "a");
 906                 if (fp == NULL) {
 907                         err_printf("*** Error opening temp file!\n"
 908                                 "    %s: %s\n",
 909                                 filename, strerror(errno));
 910                         return(1);
 911                 }
 912                 do {
 913                         a = inkey();
 914                         if (a == 255)
 915                                 a = 32;
 916                         if (a == 13)
 917                                 a = 10;
 918                         if (a != 4) {
 919                                 putc(a, fp);
 920                                 scr_putc(a);
 921                         }
 922                         if (a == 10)
 923                                 scr_putc(10);
 924                 } while (a != 4);
 925                 fclose(fp);
 926                 break;
 927
 928         case 2:
 929         default:        /* allow 2+ modes */
 930                 e_ex_code = 1;  /* start with a failed exit code */
 931                 screen_reset();
 932                 stty_ctdl(SB_RESTORE);
 933                 editor_pid = fork();
 934                 cksum = file_checksum(filename);
 935                 if (editor_pid == 0) {
 936                         char tmp[SIZ];
 937
 938                         chmod(filename, 0600);
 939                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 940                         putenv(tmp);
 941                         execlp(editor_path, editor_path, filename, NULL);
 942                         exit(1);
 943                 }
 944                 if (editor_pid > 0)
 945                         do {
 946                                 e_ex_code = 0;
 947                                 b = ka_wait(&e_ex_code);
 948                         } while ((b != editor_pid) && (b >= 0));
 949                 editor_pid = (-1);
 950                 stty_ctdl(0);
 951                 screen_set();
 952                 break;
 953         }
 954
 955 MECR:   if (mode >= 2) {
 956                 if (file_checksum(filename) == cksum) {
 957                         err_printf("*** Aborted message.\n");
 958                         e_ex_code = 1;
 959                 }
 960                 if (e_ex_code == 0) {
 961                         goto MEFIN;
 962                 }
 963                 goto MEABT2;
 964         }
 965
 966         b = keymenu("Entry command (? for options)",
 967                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 968                     "add s<U>bject|"
 969                     "<R>eplace string|<H>old message");
 970
 971         if (b == 'a') goto MEABT;
 972         if (b == 'c') goto ME1;
 973         if (b == 's') goto MEFIN;
 974         if (b == 'p') {
 975                 scr_printf(" %s from %s", datestr, fullname);
 976                 if (strlen(recipient) > 0) {
 977                         scr_printf(" to %s", recipient);
 978                 }
 979                 scr_printf("\n");
 980                 if (subject != NULL) if (strlen(subject) > 0) {
 981                         scr_printf("Subject: %s\n", subject);
 982                 }
 983                 fp = fopen(filename, "r");
 984                 if (fp != NULL) {
 985                         fmout(screenwidth, fp, NULL, NULL,
 986                               ((userflags & US_PAGINATOR) ? 1 : 0),
 987                               screenheight, 0, 0);
 988                         beg = ftell(fp);
 989                         fclose(fp);
 990                 }
 991                 goto MECR;
 992         }
 993         if (b == 'r') {
 994                 replace_string(filename, 0L);
 995                 goto MECR;
 996         }
 997         if (b == 'h') {
 998                 return (2);
 999         }
1000         if (b == 'u') {
1001                 if (subject != NULL) {
1002                         newprompt("Subject: ", subject, 70);
1003                 }
1004                 goto MECR;
1005         }
1006
1007 MEFIN:  return (0);
1008
1009 MEABT:  scr_printf("Are you sure? ");
1010         if (yesno() == 0) {
1011                 goto ME1;
1012         }
1013 MEABT2: unlink(filename);
1014         return (2);
1015 }
1016
1017
1018 #if 0
1019 /*
1020  * Transmit message text to the server.
1021  *
1022  * This loop also implements a "tick" counter that displays the progress, if
1023  * we're sending something that will take a long time to transmit.
1024  */
1025 void transmit_message(CtdlIPC *ipc, FILE *fp)
1026 {
1027         char buf[SIZ];
1028         int ch, a;
1029         long msglen;
1030         time_t lasttick;
1031
1032         fseek(fp, 0L, SEEK_END);
1033         msglen = ftell(fp);
1034         rewind(fp);
1035         lasttick = time(NULL);
1036         strcpy(buf, "");
1037         while (ch = getc(fp), (ch >= 0)) {
1038                 if (ch == 10) {
1039                         if (!strcmp(buf, "000"))
1040                                 strcpy(buf, ">000");
1041                         CtdlIPC_putline(ipc, buf);
1042                         strcpy(buf, "");
1043                 } else {
1044                         a = strlen(buf);
1045                         buf[a + 1] = 0;
1046                         buf[a] = ch;
1047                         if ((ch == 32) && (strlen(buf) > 200)) {
1048                                 buf[a] = 0;
1049                                 if (!strcmp(buf, "000"))
1050                                         strcpy(buf, ">000");
1051                                 CtdlIPC_putline(ipc, buf);
1052                                 strcpy(buf, "");
1053                         }
1054                         if (strlen(buf) > 250) {
1055                                 if (!strcmp(buf, "000"))
1056                                         strcpy(buf, ">000");
1057                                 CtdlIPC_putline(ipc, buf);
1058                                 strcpy(buf, "");
1059                         }
1060                 }
1061
1062                 if ((time(NULL) - lasttick) > 2L) {
1063                         scr_printf(" %3ld%% completed\r",
1064                                ((ftell(fp) * 100L) / msglen));
1065                         scr_flush();
1066                         lasttick = time(NULL);
1067                 }
1068
1069         }
1070         CtdlIPC_putline(ipc, buf);
1071         scr_printf("                \r");
1072         scr_flush();
1073 }
1074 #endif
1075
1076
1077 /*
1078  * Make sure there's room in msg_arr[] for at least one more.
1079  */
1080 void check_msg_arr_size(void) {
1081         if ((num_msgs + 1) > msg_arr_size) {
1082                 msg_arr_size += 512;
1083                 msg_arr = realloc(msg_arr,
1084                         ((sizeof(long)) * msg_arr_size) );
1085         }
1086 }
1087
1088
1089 /*
1090  * break_big_lines()  -  break up lines that are >1024 characters
1091  *                       otherwise the server will truncate
1092  */
1093 void break_big_lines(char *msg) {
1094         char *ptr;
1095         char *break_here;
1096
1097         if (msg == NULL) {
1098                 return;
1099         }
1100
1101         ptr = msg;
1102         while (strlen(ptr) > 1000) {
1103                 break_here = strchr(&ptr[900], ' ');
1104                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1105                         break_here = &ptr[999];
1106                 }
1107                 *break_here = '\n';
1108                 ptr = break_here++;
1109         }
1110 }
1111
1112
1113 /*
1114  * entmsg()  -  edit and create a message
1115  *              returns 0 if message was saved
1116  */
1117 int entmsg(CtdlIPC *ipc,
1118                 int is_reply,   /* nonzero if this was a <R>eply command */
1119                 int c,          /* mode */
1120                 int masquerade  /* prompt for a non-default display name? */
1121 ) {
1122         char buf[SIZ];
1123         int a, b;
1124         int need_recp = 0;
1125         int mode;
1126         long highmsg = 0L;
1127         FILE *fp;
1128         char subject[SIZ];
1129         struct ctdlipcmessage message;
1130         unsigned long *msgarr = NULL;
1131         int r;                  /* IPC response code */
1132         int subject_required = 0;
1133
1134         if (c > 0)
1135                 mode = 1;
1136         else
1137                 mode = 0;
1138
1139         strcpy(subject, "");
1140
1141         /*
1142          * First, check to see if we have permission to enter a message in
1143          * this room.  The server will return an error code if we can't.
1144          */
1145         strcpy(message.recipient, "");
1146         strcpy(message.author, "");
1147         strcpy(message.subject, "");
1148         message.text = "";              /* point to "", changes later */
1149         message.anonymous = 0;
1150         message.type = mode;
1151
1152         if (masquerade) {
1153                 newprompt("Display name for this message: ", message.author, 40);
1154         }
1155
1156         r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1157
1158         if (r / 100 != 2 && r / 10 != 57) {
1159                 scr_printf("%s\n", buf);
1160                 return (1);
1161         }
1162
1163         /* Error code 570 is special.  It means that we CAN enter a message
1164          * in this room, but a recipient needs to be specified.
1165          */
1166         need_recp = 0;
1167         if (r / 10 == 57) {
1168                 need_recp = 1;
1169         }
1170
1171         /* If the user is a dumbass, tell them how to type. */
1172         if ((userflags & US_EXPERT) == 0) {
1173                 formout(ipc, "entermsg");
1174         }
1175
1176         /* Handle the selection of a recipient, if necessary. */
1177         strcpy(buf, "");
1178         if (need_recp == 1) {
1179                 if (axlevel >= 2) {
1180                         if (is_reply) {
1181                                 strcpy(buf, reply_to);
1182                         } else {
1183                                 scr_printf("Enter recipient: ");
1184                                 ctdl_getline(buf, (SIZ-100) );
1185                                 if (strlen(buf) == 0)
1186                                         return (1);
1187                         }
1188                 } else
1189                         strcpy(buf, "sysop");
1190         }
1191         strcpy(message.recipient, buf);
1192
1193         if (is_reply) {
1194                 if (strlen(reply_subject) > 0) {
1195                         if (!strncasecmp(reply_subject,
1196                            "Re: ", 3)) {
1197                                 strcpy(message.subject, reply_subject);
1198                         }
1199                         else {
1200                                 snprintf(message.subject,
1201                                         sizeof message.subject,
1202                                         "Re: %s",
1203                                         reply_subject);
1204                         }
1205                 }
1206         }
1207
1208         if (room_flags & QR_ANONOPT) {
1209                 scr_printf("Anonymous (Y/N)? ");
1210                 if (yesno() == 1)
1211                         message.anonymous = 1;
1212         }
1213
1214         /* If it's mail, we've got to check the validity of the recipient... */
1215         if (strlen(message.recipient) > 0) {
1216                 r = CtdlIPCPostMessage(ipc, 0, &subject_required,  &message, buf);
1217                 if (r / 100 != 2) {
1218                         scr_printf("%s\n", buf);
1219                         return (1);
1220                 }
1221         }
1222
1223         /* Learn the number of the newest message in in the room, so we can
1224          * tell upon saving whether someone else has posted too.
1225          */
1226         num_msgs = 0;
1227         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1228         if (r / 100 != 1) {
1229                 scr_printf("%s\n", buf);
1230         } else {
1231                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1232                         ;
1233         }
1234
1235         /* Now compose the message... */
1236         if (client_make_message(ipc, temp, message.recipient,
1237            message.anonymous, 0, c, message.subject, subject_required) != 0) {
1238             if (msgarr) free(msgarr);
1239                 return (2);
1240         }
1241
1242         /* Reopen the temp file that was created, so we can send it */
1243         fp = fopen(temp, "r");
1244
1245         if (!fp || !(message.text = load_message_from_file(fp))) {
1246                 err_printf("*** Internal error while trying to save message!\n"
1247                         "%s: %s\n",
1248                         temp, strerror(errno));
1249                 unlink(temp);
1250                 return(errno);
1251         }
1252
1253         if (fp) fclose(fp);
1254
1255         /* Break lines that are >1024 characters, otherwise the server
1256          * will truncate them.
1257          */
1258         break_big_lines(message.text);
1259
1260         /* Transmit message to the server */
1261         r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1262         if (r / 100 != 4) {
1263                 scr_printf("%s\n", buf);
1264                 return (1);
1265         }
1266
1267         /* Yes, unlink it now, so it doesn't stick around if we crash */
1268         unlink(temp);
1269
1270         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1271
1272         if (msgarr) free(msgarr);
1273         msgarr = NULL;
1274         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1275         if (r / 100 != 1) {
1276                 scr_printf("%s\n", buf);
1277         } else {
1278                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1279                         ;
1280         }
1281
1282         /* get new highest message number in room to set lrp for goto... */
1283         maxmsgnum = msgarr[num_msgs - 1];
1284
1285         /* now see if anyone else has posted in here */
1286         b = (-1);
1287         for (a = 0; a < num_msgs; ++a) {
1288                 if (msgarr[a] > highmsg) {
1289                         ++b;
1290                 }
1291         }
1292         if (msgarr) free(msgarr);
1293         msgarr = NULL;
1294
1295         /* In the Mail> room, this algorithm always counts one message
1296          * higher than in public rooms, so we decrement it by one.
1297          */
1298         if (need_recp) {
1299                 --b;
1300         }
1301
1302         if (b == 1) {
1303                 scr_printf("*** 1 additional message has been entered "
1304                         "in this room by another user.\n");
1305         }
1306         else if (b > 1) {
1307                 scr_printf("*** %d additional messages have been entered "
1308                         "in this room by other users.\n", b);
1309         }
1310     free(message.text);
1311
1312         return(0);
1313 }
1314
1315 /*
1316  * Do editing on a quoted file
1317  */
1318 void process_quote(void)
1319 {
1320         FILE *qfile, *tfile;
1321         char buf[128];
1322         int line, qstart, qend;
1323
1324         /* Unlink the second temp file as soon as it's opened, so it'll get
1325          * deleted even if the program dies
1326          */
1327         qfile = fopen(temp2, "r");
1328         unlink(temp2);
1329
1330         /* Display the quotable text with line numbers added */
1331         line = 0;
1332         fgets(buf, 128, qfile);
1333         while (fgets(buf, 128, qfile) != NULL) {
1334                 scr_printf("%2d %s", ++line, buf);
1335         }
1336         scr_printf("Begin quoting at [ 1] : ");
1337         ctdl_getline(buf, 3);
1338         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1339         scr_printf("  End quoting at [%d] : ", line);
1340         ctdl_getline(buf, 3);
1341         qend = (buf[0] == 0) ? (line) : atoi(buf);
1342         rewind(qfile);
1343         line = 0;
1344         fgets(buf, 128, qfile);
1345         tfile = fopen(temp, "w");
1346         while (fgets(buf, 128, qfile) != NULL) {
1347                 if ((++line >= qstart) && (line <= qend))
1348                         fprintf(tfile, " >%s", buf);
1349         }
1350         fprintf(tfile, " \n");
1351         fclose(qfile);
1352         fclose(tfile);
1353         chmod(temp, 0666);
1354 }
1355
1356
1357
1358 /*
1359  * List the URL's which were embedded in the previous message
1360  */
1361 void list_urls(CtdlIPC *ipc)
1362 {
1363         int i;
1364         char cmd[SIZ];
1365
1366         if (num_urls == 0) {
1367                 scr_printf("There were no URL's in the previous message.\n\n");
1368                 return;
1369         }
1370
1371         for (i = 0; i < num_urls; ++i) {
1372                 scr_printf("%3d %s\n", i + 1, urls[i]);
1373         }
1374
1375         if ((i = num_urls) != 1)
1376                 i = intprompt("Display which one", 1, 1, num_urls);
1377
1378         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1379         system(cmd);
1380         scr_printf("\n");
1381 }
1382
1383
1384 /*
1385  * Run image viewer in background
1386  */
1387 int do_image_view(const char *filename)
1388 {
1389         char cmd[SIZ];
1390         pid_t childpid;
1391
1392         snprintf(cmd, sizeof cmd, imagecmd, filename);
1393         childpid = fork();
1394         if (childpid < 0) {
1395                 unlink(filename);
1396                 return childpid;
1397         }
1398
1399         if (childpid == 0) {
1400                 int retcode;
1401                 pid_t grandchildpid;
1402
1403                 grandchildpid = fork();
1404                 if (grandchildpid < 0) {
1405                         return grandchildpid;
1406                 }
1407
1408                 if (grandchildpid == 0) {
1409                         int nullfd;
1410                         int outfd = -1;
1411                         int errfd = -1;
1412
1413                         nullfd = open("/dev/null", O_WRONLY);
1414                         if (nullfd > -1) {
1415                                 dup2(1, outfd);
1416                                 dup2(2, errfd);
1417                                 dup2(nullfd, 1);
1418                                 dup2(nullfd, 2);
1419                         }
1420                         retcode = system(cmd);
1421                         if (nullfd > -1) {
1422                                 dup2(outfd, 1);
1423                                 dup2(errfd, 2);
1424                                 close(nullfd);
1425                         }
1426                         unlink(filename);
1427                         exit(retcode);
1428                 }
1429
1430                 if (grandchildpid > 0) {
1431                         exit(0);
1432                 }
1433         }
1434
1435         if (childpid > 0) {
1436                 int retcode;
1437
1438                 waitpid(childpid, &retcode, 0);
1439                 return retcode;
1440         }
1441
1442         return -1;
1443 }
1444
1445
1446 /*
1447  * View an image attached to a message
1448  */
1449 void image_view(CtdlIPC *ipc, unsigned long msg)
1450 {
1451         struct parts *ptr = last_message_parts;
1452         char part[SIZ];
1453         int found = 0;
1454
1455         /* Run through available parts */
1456         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1457                 if ((!strcasecmp(ptr->disposition, "attachment")
1458                    || !strcasecmp(ptr->disposition, "inline"))
1459                    && !strncmp(ptr->mimetype, "image/", 6)) {
1460                         found++;
1461                         if (found == 1) {
1462                                 strcpy(part, ptr->number);
1463                         }
1464                 }
1465         }
1466
1467         while (found > 0) {
1468                 if (found > 1)
1469                         strprompt("View which part (0 when done)", part, SIZ-1);
1470                 found = -found;
1471                 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1472                         if ((!strcasecmp(ptr->disposition, "attachment")
1473                            || !strcasecmp(ptr->disposition, "inline"))
1474                            && !strncmp(ptr->mimetype, "image/", 6)
1475                            && !strcasecmp(ptr->number, part)) {
1476                                 char tmp[PATH_MAX];
1477                                 char buf[SIZ];
1478                                 void *file = NULL; /* The downloaded file */
1479                                 int r;
1480
1481                                 /* view image */
1482                                 found = -found;
1483                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1484                                 if (r / 100 != 2) {
1485                                         scr_printf("%s\n", buf);
1486                                 } else {
1487                                         size_t len;
1488
1489                                         len = (size_t)extract_long(buf, 0);
1490                                         progress(ipc, len, len);
1491                                         scr_flush();
1492                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1493                                         strcat(tmp, ptr->filename);
1494                                         save_buffer(file, len, tmp);
1495                                         free(file);
1496                                         do_image_view(tmp);
1497                                 }
1498                                 break;
1499                         }
1500                 }
1501                 if (found == 1)
1502                         break;
1503         }
1504 }
1505
1506
1507 /*
1508  * Read the messages in the current room
1509  */
1510 void readmsgs(CtdlIPC *ipc,
1511         enum MessageList c,             /* see listing in citadel_ipc.h */
1512         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1513         int q           /* Number of msgs to read (if c==3) */
1514 ) {
1515         int a, b, e, f, g, start;
1516         int savedpos;
1517         int hold_sw = 0;
1518         char arcflag = 0;
1519         char quotflag = 0;
1520         int hold_color = 0;
1521         char prtfile[PATH_MAX];
1522         char pagin;
1523         char cmd[SIZ];
1524         char targ[ROOMNAMELEN];
1525         char filename[PATH_MAX];
1526         char save_to[PATH_MAX];
1527         void *attachment = NULL;        /* Downloaded attachment */
1528         FILE *dest = NULL;      /* Alternate destination other than screen */
1529         int r;                          /* IPC response code */
1530
1531         if (c < 0)
1532                 b = (num_msgs - 1);
1533         else
1534                 b = 0;
1535
1536         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1537
1538         if (msg_arr) {
1539                 free(msg_arr);
1540                 msg_arr = NULL;
1541         }
1542         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1543         if (r / 100 != 1) {
1544                 scr_printf("%s\n", cmd);
1545         } else {
1546                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1547                         ;
1548         }
1549
1550         if (num_msgs == 0) {    /* TODO look at this later */
1551                 if (c == LastMessages) return;
1552                 scr_printf("*** There are no ");
1553                 if (c == NewMessages) scr_printf("new ");
1554                 if (c == OldMessages) scr_printf("old ");
1555                 scr_printf("messages in this room.\n");
1556                 return;
1557         }
1558
1559         lines_printed = 0;
1560
1561         /* this loop cycles through each message... */
1562         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1563         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1564                 while (msg_arr[a] == 0L) {
1565                         a = a + rdir;
1566                         if ((a == num_msgs) || (a == (-1)))
1567                                 return;
1568                 }
1569
1570 RAGAIN:         pagin = ((arcflag == 0)
1571                          && (quotflag == 0)
1572                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1573
1574                 /* If we're doing a quote, set the screenwidth to 72 */
1575                 if (quotflag) {
1576                         hold_sw = screenwidth;
1577                         screenwidth = 72;
1578                 }
1579
1580                 /* If printing or archiving, set the screenwidth to 80 */
1581                 if (arcflag) {
1582                         hold_sw = screenwidth;
1583                         screenwidth = 80;
1584                 }
1585
1586                 /* clear parts list */
1587                 free_parts(last_message_parts);
1588                 last_message_parts = NULL;
1589
1590                 /* now read the message... */
1591                 e = read_message(ipc, msg_arr[a], pagin, dest);
1592
1593                 /* ...and set the screenwidth back if we have to */
1594                 if ((quotflag) || (arcflag)) {
1595                         screenwidth = hold_sw;
1596                 }
1597 RMSGREAD:       scr_flush();
1598                 highest_msg_read = msg_arr[a];
1599                 if (quotflag) {
1600                         fclose(dest);
1601                         dest = NULL;
1602                         quotflag = 0;
1603                         enable_color = hold_color;
1604                         process_quote();
1605                 }
1606                 if (arcflag) {
1607                         fclose(dest);
1608                         dest = NULL;
1609                         arcflag = 0;
1610                         enable_color = hold_color;
1611                         f = fork();
1612                         if (f == 0) {
1613                                 freopen(prtfile, "r", stdin);
1614                                 screen_reset();
1615                                 stty_ctdl(SB_RESTORE);
1616                                 ka_system(printcmd);
1617                                 stty_ctdl(SB_NO_INTR);
1618                                 screen_set();
1619                                 unlink(prtfile);
1620                                 exit(0);
1621                         }
1622                         if (f > 0)
1623                                 do {
1624                                         g = wait(NULL);
1625                                 } while ((g != f) && (g >= 0));
1626                         scr_printf("Message printed.\n");
1627                 }
1628                 if (rc_alt_semantics && c == 1) {
1629                         char buf[SIZ];
1630
1631                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1632                 }
1633                 if (e == 3)
1634                         return;
1635                 if (((userflags & US_NOPROMPT) || (e == 2))
1636                     && (((room_flags & QR_MAILBOX) == 0)
1637                         || (rc_force_mail_prompts == 0))) {
1638                         e = 'n';
1639                 } else {
1640                         color(DIM_WHITE);
1641                         scr_printf("(");
1642                         color(BRIGHT_WHITE);
1643                         scr_printf("%d", num_msgs - a - 1);
1644                         color(DIM_WHITE);
1645                         scr_printf(") ");
1646
1647                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1648                         if (rc_url_cmd[0] && num_urls)
1649                                 keyopt("<U>RLview ");
1650                         if (has_images > 0 && strlen(imagecmd) > 0)
1651                                 keyopt("<I>mages ");
1652                         keyopt("<?>help -> ");
1653
1654                         do {
1655                                 lines_printed = 2;
1656                                 e = (inkey() & 127);
1657                                 e = tolower(e);
1658 /* return key same as <N> */ if (e == 10)
1659                                         e = 'n';
1660 /* space key same as <N> */ if (e == 32)
1661                                         e = 'n';
1662 /* del/move for aides only */
1663                                     if (  (!is_room_aide)
1664                                        && ((room_flags & QR_MAILBOX) == 0)
1665                                        && ((room_flags2 & QR2_COLLABDEL) == 0)
1666                                        ) {
1667                                         if ((e == 'd') || (e == 'm'))
1668                                                 e = 0;
1669                                 }
1670 /* print only if available */
1671                                 if ((e == 'p') && (strlen(printcmd) == 0))
1672                                         e = 0;
1673 /* can't file if not allowed */
1674                                     if ((e == 'f')
1675                                         && (rc_allow_attachments == 0))
1676                                         e = 0;
1677 /* link only if browser avail*/
1678                                     if ((e == 'u')
1679                                         && (strlen(rc_url_cmd) == 0))
1680                                         e = 0;
1681                                 if ((e == 'i')
1682                                         && (!strlen(imagecmd) || !has_images))
1683                                         e = 0;
1684                         } while ((e != 'a') && (e != 'n') && (e != 's')
1685                                  && (e != 'd') && (e != 'm') && (e != 'p')
1686                                  && (e != 'q') && (e != 'b') && (e != 'h')
1687                                  && (e != 'r') && (e != 'f') && (e != '?')
1688                                  && (e != 'u') && (e != 'c') && (e != 'y')
1689                                  && (e != 'i'));
1690                         switch (e) {
1691                         case 's':
1692                                 scr_printf("Stop");
1693                                 break;
1694                         case 'a':
1695                                 scr_printf("Again");
1696                                 break;
1697                         case 'd':
1698                                 scr_printf("Delete");
1699                                 break;
1700                         case 'm':
1701                                 scr_printf("Move");
1702                                 break;
1703                         case 'c':
1704                                 scr_printf("Copy");
1705                                 break;
1706                         case 'n':
1707                                 scr_printf("Next");
1708                                 break;
1709                         case 'p':
1710                                 scr_printf("Print");
1711                                 break;
1712                         case 'q':
1713                                 scr_printf("Quote");
1714                                 break;
1715                         case 'b':
1716                                 scr_printf("Back");
1717                                 break;
1718                         case 'h':
1719                                 scr_printf("Header");
1720                                 break;
1721                         case 'r':
1722                                 scr_printf("Reply");
1723                                 break;
1724                         case 'f':
1725                                 scr_printf("File");
1726                                 break;
1727                         case 'u':
1728                                 scr_printf("URL's");
1729                                 break;
1730                         case 'y':
1731                                 scr_printf("mY next");
1732                                 break;
1733                         case 'i':
1734                                 break;
1735                         case '?':
1736                                 scr_printf("? <help>");
1737                                 break;
1738                         }
1739                         if (userflags & US_DISAPPEAR || e == 'i')
1740                                 scr_printf("\r%79s\r", "");
1741                         else
1742                                 scr_printf("\n");
1743                         scr_flush();
1744                 }
1745                 switch (e) {
1746                 case '?':
1747                         scr_printf("Options available here:\n"
1748                                 " ?  Help (prints this message)\n"
1749                                 " S  Stop reading immediately\n"
1750                                 " A  Again (repeats last message)\n"
1751                                 " N  Next (continue with next message)\n"
1752                                 " Y  My Next (continue with next message you authored)\n"
1753                                 " B  Back (go back to previous message)\n");
1754                         if (  (is_room_aide)
1755                            || (room_flags & QR_MAILBOX)
1756                            || (room_flags2 & QR2_COLLABDEL)
1757                         ) {
1758                                 scr_printf(" D  Delete this message\n"
1759                                         " M  Move message to another room\n");
1760                         }
1761                         scr_printf(" C  Copy message to another room\n");
1762                         if (strlen(printcmd) > 0)
1763                                 scr_printf(" P  Print this message\n");
1764                         scr_printf(
1765                                 " Q  Quote portions of this message for your next post\n"
1766                                 " H  Headers (display message headers only)\n");
1767                         if (is_mail)
1768                                 scr_printf(" R  Reply to this message\n");
1769                         if (rc_allow_attachments)
1770                                 scr_printf
1771                                     (" F  (save attachments to a file)\n");
1772                         if (strlen(rc_url_cmd) > 0)
1773                                 scr_printf(" U  (list URL's for display)\n");
1774                         if (strlen(imagecmd) > 0 && has_images > 0)
1775                                 scr_printf(" I  Image viewer\n");
1776                         scr_printf("\n");
1777                         goto RMSGREAD;
1778                 case 'p':
1779                         scr_flush();
1780                         dest = fopen(prtfile, "w");
1781                         arcflag = 1;
1782                         hold_color = enable_color;
1783                         enable_color = 0;
1784                         goto RAGAIN;
1785                 case 'q':
1786                         scr_flush();
1787                         dest = fopen(temp2, "w");
1788                         quotflag = 1;
1789                         hold_color = enable_color;
1790                         enable_color = 0;
1791                         goto RAGAIN;
1792                 case 's':
1793                         return;
1794                 case 'a':
1795                         goto RAGAIN;
1796                 case 'b':
1797                         a = a - (rdir * 2);
1798                         break;
1799                 case 'm':
1800                 case 'c':
1801                         newprompt("Enter target room: ",
1802                                   targ, ROOMNAMELEN - 1);
1803                         if (strlen(targ) > 0) {
1804                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1805                                                        msg_arr[a], targ, cmd);
1806                                 scr_printf("%s\n", cmd);
1807                                 if (r / 100 == 2)
1808                                         msg_arr[a] = 0L;
1809                         } else {
1810                                 goto RMSGREAD;
1811                         }
1812                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1813                                 goto RMSGREAD;  /* the logic here sucks */
1814                         break;
1815                 case 'f':
1816                         newprompt("Which section? ", filename,
1817                                   ((sizeof filename) - 1));
1818                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1819                                         filename, &attachment, progress, cmd);
1820                         if (r / 100 != 2) {
1821                                 scr_printf("%s\n", cmd);
1822                         } else {
1823                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1824                                 /*
1825                                  * Part 1 won't have a filename; use the
1826                                  * subject of the message instead. IO
1827                                  */
1828                                 if (!strlen(filename))
1829                                         strcpy(filename, reply_subject);
1830                                 destination_directory(save_to, filename);
1831                                 save_buffer(attachment,
1832                                                 extract_unsigned_long(cmd, 0),
1833                                                 save_to);
1834                         }
1835                         if (attachment) {
1836                                 free(attachment);
1837                                 attachment = NULL;
1838                         }
1839                         goto RMSGREAD;
1840                 case 'd':
1841                         scr_printf("*** Delete this message? ");
1842                         if (yesno() == 1) {
1843                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1844                                 scr_printf("%s\n", cmd);
1845                                 if (r / 100 == 2)
1846                                         msg_arr[a] = 0L;
1847                         } else {
1848                                 goto RMSGREAD;
1849                         }
1850                         break;
1851                 case 'h':
1852                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1853                         goto RMSGREAD;
1854                 case 'r':
1855                         savedpos = num_msgs;
1856                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1857                         num_msgs = savedpos;
1858                         goto RMSGREAD;
1859                 case 'u':
1860                         list_urls(ipc);
1861                         goto RMSGREAD;
1862                 case 'i':
1863                         image_view(ipc, msg_arr[a]);
1864                         goto RMSGREAD;
1865             case 'y':
1866           { /* hack hack hack */
1867             /* find the next message by me, stay here if we find nothing */
1868             int finda;
1869             int lasta = a;
1870             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1871               {
1872                 /* This is repetitively dumb, but that's what computers are for.
1873                    We have to load up messages until we find one by us */
1874                 char buf[SIZ];
1875                 int founda = 0;
1876                 struct ctdlipcmessage *msg = NULL;
1877
1878                 /* read the header so we can get 'from=' */
1879                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1880                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1881                         a = lasta; /* meesa current */
1882                         founda = 1;
1883                 }
1884
1885                 free(msg);
1886
1887                 if (founda)
1888                         break; /* for */
1889                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1890               } /* for */
1891           } /* case 'y' */
1892       } /* switch */
1893         }                       /* end for loop */
1894 }                               /* end read routine */
1895
1896
1897
1898
1899 /*
1900  * View and edit a system message
1901  */
1902 void edit_system_message(CtdlIPC *ipc, char *which_message)
1903 {
1904         char desc[SIZ];
1905         char read_cmd[SIZ];
1906         char write_cmd[SIZ];
1907
1908         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1909         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1910         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1911         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1912 }
1913
1914
1915
1916
1917 /*
1918  * Verify the message base
1919  */
1920 void check_message_base(CtdlIPC *ipc)
1921 {
1922         char buf[SIZ];
1923         char *transcript = NULL;
1924         int r;          /* IPC response code */
1925
1926         scr_printf
1927             ("Please read the documentation before running this command.\n"
1928             "Having done so, do you still want to check the message base? ");
1929         if (yesno() == 0)
1930                 return;
1931
1932         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1933         if (r / 100 != 1) {
1934                 scr_printf("%s\n", buf);
1935                 return;
1936         }
1937
1938         while (transcript && strlen(transcript)) {
1939                 lines_printed = 1;
1940                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1941                 remove_token(transcript, 0, '\n');
1942                 pprintf("%s\n", buf);
1943         }
1944         if (transcript) free(transcript);
1945         return;
1946 }
1947
1948
1949 /*
1950  * Loads the contents of a file into memory.  Caller must free the allocated
1951  * memory.
1952  */
1953 char *load_message_from_file(FILE *src)
1954 {
1955         size_t i;
1956         size_t got = 0;
1957         char *dest = NULL;
1958
1959         fseek(src, 0, SEEK_END);
1960         i = ftell(src);
1961         rewind(src);
1962
1963         dest = (char *)calloc(1, i + 1);
1964         if (!dest)
1965                 return NULL;
1966
1967         while (got < i) {
1968                 size_t g;
1969
1970                 g = fread(dest + got, 1, i - got, src);
1971                 got += g;
1972                 if (g < i - got) {
1973                         /* Interrupted system call, keep going */
1974                         if (errno == EINTR)
1975                                 continue;
1976                         /* At this point we have either EOF or error */
1977                         i = got;
1978                         break;
1979                 }
1980                 dest[i] = 0;
1981         }
1982
1983         return dest;
1984 }