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