citadel/textclient/messages.c

   1 /*
   2  * Text client functions for reading and writing of messages
   3  *
   4  * Copyright (c) 1987-2010 by the citadel.org team
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "sysdep.h"
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <sys/types.h>
  25 #include <fcntl.h>
  26 #include <stdio.h>
  27 #include <ctype.h>
  28 #include <string.h>
  29 #include <signal.h>
  30 #include <errno.h>
  31 #include <limits.h>
  32 #include <sys/wait.h>
  33 #include <sys/stat.h>
  34
  35 #if TIME_WITH_SYS_TIME
  36 # include <sys/time.h>
  37 # include <time.h>
  38 #else
  39 # if HAVE_SYS_TIME_H
  40 #  include <sys/time.h>
  41 # else
  42 #  include <time.h>
  43 # endif
  44 #endif
  45
  46 #ifdef HAVE_PTHREAD_H
  47 #include <pthread.h>
  48 #endif
  49
  50 #include <stdarg.h>
  51 #include <libcitadel.h>
  52 #include "citadel.h"
  53 #include "citadel_ipc.h"
  54 #include "citadel_decls.h"
  55 #include "messages.h"
  56 #include "commands.h"
  57 #include "rooms.h"
  58 #ifndef HAVE_SNPRINTF
  59 #include "snprintf.h"
  60 #endif
  61 #include "screen.h"
  62
  63 #define MAXWORDBUF SIZ
  64 #define NO_REPLY_TO     "nobody ... xxxxxx"
  65
  66 char reply_to[SIZ];
  67 char reply_subject[SIZ];
  68 char reply_references[SIZ];
  69 char reply_inreplyto[SIZ];
  70
  71 struct cittext {
  72         struct cittext *next;
  73         char text[MAXWORDBUF];
  74 };
  75
  76 void stty_ctdl(int cmd);
  77 int haschar(const char *st, int ch);
  78 void ctdl_getline(char *string, int lim);
  79 int file_checksum(char *filename);
  80 void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
  81
  82 unsigned long *msg_arr = NULL;
  83 int msg_arr_size = 0;
  84 int num_msgs;
  85 char rc_alt_semantics;
  86 extern char room_name[];
  87 extern char tempdir[];
  88 extern unsigned room_flags;
  89 extern unsigned room_flags2;
  90 extern int entmsg_ok;
  91 extern long highest_msg_read;
  92 extern char temp[];
  93 extern char temp2[];
  94 extern int screenwidth;
  95 extern int screenheight;
  96 extern long maxmsgnum;
  97 extern char is_mail;
  98 extern char is_aide;
  99 extern char is_room_aide;
 100 extern char fullname[];
 101 extern char axlevel;
 102 extern unsigned userflags;
 103 extern char sigcaught;
 104 extern char printcmd[];
 105 extern int rc_allow_attachments;
 106 extern int rc_display_message_numbers;
 107 extern int rc_force_mail_prompts;
 108 extern int editor_pid;
 109 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
 110 int num_urls = 0;
 111 char urls[MAXURLS][SIZ];
 112 char imagecmd[SIZ];
 113 int has_images = 0;                             /* Current msg has images */
 114 struct parts *last_message_parts = NULL;        /* Parts from last msg */
 115
 116
 117
 118 void ka_sigcatch(int signum)
 119 {
 120         alarm(S_KEEPALIVE);
 121         signal(SIGALRM, ka_sigcatch);
 122         CtdlIPCNoop(ipc_for_signal_handlers);
 123 }
 124
 125
 126 /*
 127  * server keep-alive version of wait() (needed for external editor)
 128  */
 129 pid_t ka_wait(int *kstatus)
 130 {
 131         pid_t p;
 132
 133         alarm(S_KEEPALIVE);
 134         signal(SIGALRM, ka_sigcatch);
 135         do {
 136                 errno = 0;
 137                 p = wait(kstatus);
 138         } while (errno == EINTR);
 139         signal(SIGALRM, SIG_IGN);
 140         alarm(0);
 141         return (p);
 142 }
 143
 144
 145 /*
 146  * version of system() that uses ka_wait()
 147  */
 148 int ka_system(char *shc)
 149 {
 150         pid_t childpid;
 151         pid_t waitpid;
 152         int retcode;
 153
 154         childpid = fork();
 155         if (childpid < 0) {
 156                 color(BRIGHT_RED);
 157                 perror("Cannot fork");
 158                 color(DIM_WHITE);
 159                 return ((pid_t) childpid);
 160         }
 161
 162         if (childpid == 0) {
 163                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 164                 exit(127);
 165         }
 166
 167         if (childpid > 0) {
 168                 do {
 169                         waitpid = ka_wait(&retcode);
 170                 } while (waitpid != childpid);
 171                 return (retcode);
 172         }
 173
 174         return (-1);
 175 }
 176
 177
 178
 179 /*
 180  * add a newline to the buffer...
 181  */
 182 void add_newline(struct cittext *textlist)
 183 {
 184         struct cittext *ptr;
 185
 186         ptr = textlist;
 187         while (ptr->next != NULL)
 188                 ptr = ptr->next;
 189
 190         while (ptr->text[strlen(ptr->text) - 1] == 32)
 191                 ptr->text[strlen(ptr->text) - 1] = 0;
 192         /* strcat(ptr->text,"\n"); */
 193
 194         ptr->next = (struct cittext *)
 195             malloc(sizeof(struct cittext));
 196         ptr = ptr->next;
 197         ptr->next = NULL;
 198         strcpy(ptr->text, "");
 199 }
 200
 201
 202 /*
 203  * add a word to the buffer...
 204  */
 205 void add_word(struct cittext *textlist, char *wordbuf)
 206 {
 207         struct cittext *ptr;
 208
 209         ptr = textlist;
 210         while (ptr->next != NULL)
 211                 ptr = ptr->next;
 212
 213         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 214                 ptr->next = (struct cittext *)
 215                     malloc(sizeof(struct cittext));
 216                 ptr = ptr->next;
 217                 ptr->next = NULL;
 218                 strcpy(ptr->text, "");
 219         }
 220
 221         strcat(ptr->text, wordbuf);
 222         strcat(ptr->text, " ");
 223 }
 224
 225
 226 /*
 227  * begin editing of an opened file pointed to by fp
 228  */
 229 void citedit(FILE *fp)
 230 {
 231         int a, prev, finished, b, last_space;
 232         int appending = 0;
 233         struct cittext *textlist = NULL;
 234         struct cittext *ptr;
 235         char wordbuf[MAXWORDBUF];
 236         int rv = 0;
 237
 238         /* first, load the text into the buffer */
 239         fseek(fp, 0L, 0);
 240         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 241         textlist->next = NULL;
 242         strcpy(textlist->text, "");
 243
 244         strcpy(wordbuf, "");
 245         prev = (-1);
 246         while (a = getc(fp), a >= 0) {
 247                 appending = 1;
 248                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 249                         add_word(textlist, wordbuf);
 250                         strcpy(wordbuf, "");
 251                         if ((prev == 13) || (prev == 10)) {
 252                                 add_word(textlist, "\n");
 253                                 add_newline(textlist);
 254                                 add_word(textlist, "");
 255                         }
 256                 } else {
 257                         wordbuf[strlen(wordbuf) + 1] = 0;
 258                         wordbuf[strlen(wordbuf)] = a;
 259                 }
 260                 if (strlen(wordbuf) + 3 > screenwidth) {
 261                         add_word(textlist, wordbuf);
 262                         strcpy(wordbuf, "");
 263                 }
 264                 prev = a;
 265         }
 266
 267         /* get text */
 268         finished = 0;
 269         prev = (appending ? 13 : (-1));
 270         strcpy(wordbuf, "");
 271         async_ka_start();
 272         do {
 273                 a = inkey();
 274                 if (a == 10)
 275                         a = 13;
 276                 if (a == 9)
 277                         a = 32;
 278                 if (a == 127)
 279                         a = 8;
 280
 281                 if ((a != 32) && (prev == 13)) {
 282                         add_word(textlist, "\n");
 283                         scr_printf(" ");
 284                 }
 285
 286                 if ((a == 32) && (prev == 13)) {
 287                         add_word(textlist, "\n");
 288                         add_newline(textlist);
 289                 }
 290
 291                 if (a == 8) {
 292                         if (!IsEmptyStr(wordbuf)) {
 293                                 wordbuf[strlen(wordbuf) - 1] = 0;
 294                                 scr_putc(8);
 295                                 scr_putc(32);
 296                                 scr_putc(8);
 297                         }
 298                 } else if (a == 23) {
 299                         do {
 300                                 wordbuf[strlen(wordbuf) - 1] = 0;
 301                                 scr_putc(8);
 302                                 scr_putc(32);
 303                                 scr_putc(8);
 304                         } while (!IsEmptyStr(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 305                 } else if (a == 13) {
 306                         scr_printf("\n");
 307                         if (IsEmptyStr(wordbuf))
 308                                 finished = 1;
 309                         else {
 310                                 for (b = 0; b < strlen(wordbuf); ++b)
 311                                         if (wordbuf[b] == 32) {
 312                                                 wordbuf[b] = 0;
 313                                                 add_word(textlist,
 314                                                          wordbuf);
 315                                                 strcpy(wordbuf,
 316                                                        &wordbuf[b + 1]);
 317                                                 b = 0;
 318                                         }
 319                                 add_word(textlist, wordbuf);
 320                                 strcpy(wordbuf, "");
 321                         }
 322                 } else {
 323                         scr_putc(a);
 324                         wordbuf[strlen(wordbuf) + 1] = 0;
 325                         wordbuf[strlen(wordbuf)] = a;
 326                 }
 327                 if ((strlen(wordbuf) + 3) > screenwidth) {
 328                         last_space = (-1);
 329                         for (b = 0; b < strlen(wordbuf); ++b)
 330                                 if (wordbuf[b] == 32)
 331                                         last_space = b;
 332                         if (last_space >= 0) {
 333                                 for (b = 0; b < strlen(wordbuf); ++b)
 334                                         if (wordbuf[b] == 32) {
 335                                                 wordbuf[b] = 0;
 336                                                 add_word(textlist,
 337                                                          wordbuf);
 338                                                 strcpy(wordbuf,
 339                                                        &wordbuf[b + 1]);
 340                                                 b = 0;
 341                                         }
 342                                 for (b = 0; b < strlen(wordbuf); ++b) {
 343                                         scr_putc(8);
 344                                         scr_putc(32);
 345                                         scr_putc(8);
 346                                 }
 347                                 scr_printf("\n%s", wordbuf);
 348                         } else {
 349                                 add_word(textlist, wordbuf);
 350                                 strcpy(wordbuf, "");
 351                                 scr_printf("\n");
 352                         }
 353                 }
 354                 prev = a;
 355         } while (finished == 0);
 356         async_ka_end();
 357
 358         /* write the buffer back to disk */
 359         fseek(fp, 0L, 0);
 360         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 361                 fprintf(fp, "%s", ptr->text);
 362         }
 363         putc(10, fp);
 364         fflush(fp);
 365         rv = ftruncate(fileno(fp), ftell(fp));
 366
 367         /* and deallocate the memory we used */
 368         while (textlist != NULL) {
 369                 ptr = textlist->next;
 370                 free(textlist);
 371                 textlist = ptr;
 372         }
 373 }
 374
 375
 376 /*
 377  * Free the struct parts
 378  */
 379 void free_parts(struct parts *p)
 380 {
 381         struct parts *a_part = p;
 382
 383         while (a_part) {
 384                 struct parts *q;
 385
 386                 q = a_part;
 387                 a_part = a_part->next;
 388                 free(q);
 389         }
 390 }
 391
 392
 393 /*
 394  * Read a message from the server
 395  */
 396 int read_message(CtdlIPC *ipc,
 397         long num,   /* message number */
 398         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 399         FILE *dest) /* Destination file, NULL for screen */
 400 {
 401         char buf[SIZ];
 402         char now[SIZ];
 403         int format_type = 0;
 404         int fr = 0;
 405         int nhdr = 0;
 406         struct ctdlipcmessage *message = NULL;
 407         int r;                          /* IPC response code */
 408         char *converted_text = NULL;
 409         char *lineptr;
 410         char *nextline;
 411         char *searchptr;
 412         int i;
 413         char ch;
 414         int linelen;
 415         int final_line_is_blank = 0;
 416
 417         has_images = 0;
 418
 419         sigcaught = 0;
 420         stty_ctdl(1);
 421
 422         strcpy(reply_to, NO_REPLY_TO);
 423         strcpy(reply_subject, "");
 424         strcpy(reply_references, "");
 425         strcpy(reply_inreplyto, "");
 426
 427         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0), 4, &message, buf);
 428         if (r / 100 != 1) {
 429                 scr_printf("*** msg #%ld: %d %s\n", num, r, buf);
 430                 stty_ctdl(0);
 431                 free(message->text);
 432                 free_parts(message->attachments);
 433                 free(message);
 434                 return (0);
 435         }
 436
 437         if (dest) {
 438                 fprintf(dest, "\n ");
 439         } else {
 440                 scr_printf("\n");
 441                 if (pagin != 2)
 442                         scr_printf(" ");
 443         }
 444         if (pagin == 1 && !dest) {
 445                 color(BRIGHT_CYAN);
 446         }
 447
 448         /* View headers only */
 449         if (pagin == 2) {
 450                 scr_printf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 451                                 message->nhdr ? "yes" : "no",
 452                                 message->author, message->type,
 453                                 message->msgid);
 454                 if (!IsEmptyStr(message->subject)) {
 455                         scr_printf("subj=%s\n", message->subject);
 456                 }
 457                 if (!IsEmptyStr(message->email)) {
 458                         scr_printf("rfca=%s\n", message->email);
 459                 }
 460                 scr_printf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 461                                 message->hnod, message->room,
 462                                 message->node,
 463                                 asctime(localtime(&message->time)));
 464                 if (!IsEmptyStr(message->recipient)) {
 465                         scr_printf("rcpt=%s\n", message->recipient);
 466                 }
 467                 if (message->attachments) {
 468                         struct parts *ptr;
 469
 470                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 471                                 scr_printf("part=%s|%s|%s|%s|%s|%ld\n",
 472                                         ptr->name, ptr->filename, ptr->number,
 473                                         ptr->disposition, ptr->mimetype,
 474                                         ptr->length);
 475                         }
 476                 }
 477                 scr_printf("\n");
 478                 stty_ctdl(0);
 479                 free(message->text);
 480                 free_parts(message->attachments);
 481                 free(message);
 482                 return (0);
 483         }
 484
 485         if (rc_display_message_numbers) {
 486                 if (dest) {
 487                         fprintf(dest, "[#%s] ", message->msgid);
 488                 } else {
 489                         color(DIM_WHITE);
 490                         scr_printf("[");
 491                         color(BRIGHT_WHITE);
 492                         scr_printf("#%s", message->msgid);
 493                         color(DIM_WHITE);
 494                         scr_printf("] ");
 495                 }
 496         }
 497         if (nhdr == 1 && !is_room_aide) {
 498                 if (dest) {
 499                         fprintf(dest, " ****");
 500                 } else {
 501                         scr_printf(" ****");
 502                 }
 503         } else {
 504                 fmt_date(now, sizeof now, message->time, 0);
 505                 if (dest) {
 506                         fprintf(dest, "%s from %s ", now, message->author);
 507                         if (!IsEmptyStr(message->email)) {
 508                                 fprintf(dest, "<%s> ", message->email);
 509                         }
 510                 } else {
 511                         color(BRIGHT_CYAN);
 512                         scr_printf("%s ", now);
 513                         color(DIM_WHITE);
 514                         scr_printf("from ");
 515                         color(BRIGHT_CYAN);
 516                         scr_printf("%s ", message->author);
 517                         if (!IsEmptyStr(message->email)) {
 518                                 color(DIM_WHITE);
 519                                 scr_printf("<");
 520                                 color(BRIGHT_BLUE);
 521                                 scr_printf("%s", message->email);
 522                                         color(DIM_WHITE);
 523                                 scr_printf("> ");
 524                         }
 525                 }
 526                 if (!IsEmptyStr(message->node)) {
 527                         if ((room_flags & QR_NETWORK)
 528                             || ((strcasecmp(message->node, ipc->ServInfo.nodename)
 529                              && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
 530                                 if (IsEmptyStr(message->email)) {
 531                                         if (dest) {
 532                                                 fprintf(dest, "@%s ", message->node);
 533                                         } else {
 534                                                 color(DIM_WHITE);
 535                                                 scr_printf("@");
 536                                                 color(BRIGHT_YELLOW);
 537                                                 scr_printf("%s ", message->node);
 538                                         }
 539                                 }
 540                         }
 541                 }
 542                 if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
 543                     && (!IsEmptyStr(message->hnod)) && (IsEmptyStr(message->email))) {
 544                         if (dest) {
 545                                 fprintf(dest, "(%s) ", message->hnod);
 546                         } else {
 547                                 color(DIM_WHITE);
 548                                 scr_printf("(");
 549                                 color(BRIGHT_WHITE);
 550                                 scr_printf("%s", message->hnod);
 551                                 color(DIM_WHITE);
 552                                 scr_printf(") ");
 553                         }
 554                 }
 555                 if (strcasecmp(message->room, room_name) && (IsEmptyStr(message->email))) {
 556                         if (dest) {
 557                                 fprintf(dest, "in %s> ", message->room);
 558                         } else {
 559                                 color(DIM_WHITE);
 560                                 scr_printf("in ");
 561                                 color(BRIGHT_MAGENTA);
 562                                 scr_printf("%s> ", message->room);
 563                         }
 564                 }
 565                 if (!IsEmptyStr(message->recipient)) {
 566                         if (dest) {
 567                                 fprintf(dest, "to %s ", message->recipient);
 568                         } else {
 569                                 color(DIM_WHITE);
 570                                 scr_printf("to ");
 571                                 color(BRIGHT_CYAN);
 572                                 scr_printf("%s ", message->recipient);
 573                         }
 574                 }
 575         }
 576
 577         if (dest) {
 578                 fprintf(dest, "\n");
 579         } else {
 580                 scr_printf("\n");
 581         }
 582
 583         /* Set the reply-to address to an Internet e-mail address if possible
 584          */
 585         if ((message->email != NULL) && (!IsEmptyStr(message->email))) {
 586                 if (!IsEmptyStr(message->author)) {
 587                         snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
 588                 }
 589                 else {
 590                         safestrncpy(reply_to, message->email, sizeof reply_to);
 591                 }
 592         }
 593
 594         /* But if we can't do that, set it to a Citadel address.
 595          */
 596         if (!strcmp(reply_to, NO_REPLY_TO)) {
 597                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 598                          message->author, message->node);
 599         }
 600
 601         if (message->msgid != NULL) {
 602                 safestrncpy(reply_inreplyto, message->msgid, sizeof reply_inreplyto);
 603         }
 604
 605         if (message->references != NULL) if (!IsEmptyStr(message->references)) {
 606                 safestrncpy(reply_references, message->references, sizeof reply_references);
 607         }
 608
 609         if (message->subject != NULL) {
 610                 safestrncpy(reply_subject, message->subject, sizeof reply_subject);
 611                 if (!IsEmptyStr(message->subject)) {
 612                         if (dest) {
 613                                 fprintf(dest, "Subject: %s\n",
 614                                                         message->subject);
 615                         } else {
 616                                 color(DIM_WHITE);
 617                                 scr_printf("Subject: ");
 618                                 color(BRIGHT_CYAN);
 619                                 scr_printf("%s\n", message->subject);
 620                         }
 621                 }
 622         }
 623
 624         if (pagin == 1 && !dest) {
 625                 color(BRIGHT_WHITE);
 626         }
 627
 628         /******* end of header output, start of message text output *******/
 629
 630         /*
 631          * Convert HTML to plain text, formatting for the actual width
 632          * of the client screen.
 633          */
 634         if (!strcasecmp(message->content_type, "text/html")) {
 635                 converted_text = html_to_ascii(message->text, 0, screenwidth, 0);
 636                 if (converted_text != NULL) {
 637                         free(message->text);
 638                         message->text = converted_text;
 639                         format_type = 1;
 640                 }
 641         }
 642
 643         /* Text/plain is a different type */
 644         if (!strcasecmp(message->content_type, "text/plain")) {
 645                 format_type = 1;
 646         }
 647
 648         /* Extract URL's */
 649         num_urls = 0;   /* Start with a clean slate */
 650         searchptr = message->text;
 651         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 652                 searchptr = strstr(searchptr, "http://");
 653                 if (searchptr != NULL) {
 654                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 655                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 656                                 ch = urls[num_urls][i];
 657                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 658                                     ch == ' ' || ch == '\n') {
 659                                         urls[num_urls][i] = 0;
 660                                         break;
 661                                 }
 662                         }
 663                         num_urls++;
 664                         ++searchptr;
 665                 }
 666         }
 667
 668         /*
 669          * Here we go
 670          */
 671         if (format_type == 0) {
 672                 fr = fmout(screenwidth, NULL, message->text, dest, 1);
 673         } else {
 674                 /* renderer for text/plain */
 675
 676                 lineptr = message->text;
 677
 678                 do {
 679                         nextline = strchr(lineptr, '\n');
 680                         if (nextline != NULL) {
 681                                 *nextline = 0;
 682                                 ++nextline;
 683                                 if (*nextline == 0) nextline = NULL;
 684                         }
 685
 686                         if (sigcaught == 0) {
 687                                 linelen = strlen(lineptr);
 688                                 if (linelen && (lineptr[linelen-1] == '\r')) {
 689                                         lineptr[--linelen] = 0;
 690                                 }
 691                                 if (dest) {
 692                                         fprintf(dest, "%s\n", lineptr);
 693                                 } else {
 694                                         scr_printf("%s\n", lineptr);
 695                                 }
 696                         }
 697                         if (lineptr[0] == 0) final_line_is_blank = 1;
 698                         else final_line_is_blank = 0;
 699                         lineptr = nextline;
 700                 } while (nextline);
 701                 fr = sigcaught;
 702         }
 703         if (!final_line_is_blank) {
 704                 if (dest) {
 705                         fprintf(dest, "\n");
 706                 }
 707                 else {
 708                         scr_printf("\n");
 709                         fr = sigcaught;
 710                 }
 711         }
 712
 713         /* Enumerate any attachments */
 714         if ( (pagin == 1) && (message->attachments) ) {
 715                 struct parts *ptr;
 716
 717                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 718                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 719                            || (!strcasecmp(ptr->disposition, "inline"))
 720                            || (!strcasecmp(ptr->disposition, ""))
 721                         ) {
 722                                 if ( (strcasecmp(ptr->number, message->mime_chosen))
 723                                    && (!IsEmptyStr(ptr->mimetype))
 724                                 ) {
 725                                         color(DIM_WHITE);
 726                                         scr_printf("Part ");
 727                                         color(BRIGHT_MAGENTA);
 728                                         scr_printf("%s", ptr->number);
 729                                         color(DIM_WHITE);
 730                                         scr_printf(": ");
 731                                         color(BRIGHT_CYAN);
 732                                         scr_printf("%s", ptr->filename);
 733                                         color(DIM_WHITE);
 734                                         scr_printf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 735                                         if (!strncmp(ptr->mimetype, "image/", 6)) {
 736                                                 has_images++;
 737                                         }
 738                                 }
 739                         }
 740                 }
 741         }
 742
 743         /* Save the attachments info for later */
 744         last_message_parts = message->attachments;
 745
 746         /* Now we're done */
 747         free(message->text);
 748         free(message);
 749
 750         if (pagin == 1 && !dest)
 751                 color(DIM_WHITE);
 752         stty_ctdl(0);
 753         return (fr);
 754 }
 755
 756 /*
 757  * replace string function for the built-in editor
 758  */
 759 void replace_string(char *filename, long int startpos)
 760 {
 761         char buf[512];
 762         char srch_str[128];
 763         char rplc_str[128];
 764         FILE *fp;
 765         int a;
 766         long rpos, wpos;
 767         char *ptr;
 768         int substitutions = 0;
 769         long msglen = 0L;
 770         int rv;
 771
 772         scr_printf("Enter text to be replaced:\n: ");
 773         ctdl_getline(srch_str, (sizeof(srch_str)-1) );
 774         if (IsEmptyStr(srch_str)) {
 775                 return;
 776         }
 777
 778         scr_printf("Enter text to replace it with:\n: ");
 779         ctdl_getline(rplc_str, (sizeof(rplc_str)-1) );
 780
 781         fp = fopen(filename, "r+");
 782         if (fp == NULL) {
 783                 return;
 784         }
 785
 786         wpos = startpos;
 787         fseek(fp, startpos, 0);
 788         strcpy(buf, "");
 789         while (a = getc(fp), a > 0) {
 790                 ++msglen;
 791                 buf[strlen(buf) + 1] = 0;
 792                 buf[strlen(buf)] = a;
 793                 if (strlen(buf) >= strlen(srch_str)) {
 794                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 795                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 796                                 strcpy(ptr, rplc_str);
 797                                 ++substitutions;
 798                         }
 799                 }
 800                 if (strlen(buf) > 384) {
 801                         rpos = ftell(fp);
 802                         fseek(fp, wpos, 0);
 803                         rv = fwrite((char *) buf, 128, 1, fp);
 804                         strcpy(buf, &buf[128]);
 805                         wpos = ftell(fp);
 806                         fseek(fp, rpos, 0);
 807                 }
 808         }
 809         fseek(fp, wpos, 0);
 810         if (!IsEmptyStr(buf)) {
 811                 rv = fwrite((char *) buf, strlen(buf), 1, fp);
 812         }
 813         wpos = ftell(fp);
 814         fclose(fp);
 815         rv = truncate(filename, wpos);
 816         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 817 }
 818
 819 /*
 820  * Function to begin composing a new message
 821  */
 822 int client_make_message(CtdlIPC *ipc,
 823                         char *filename,         /* temporary file name */
 824                         char *recipient,        /* NULL if it's not mail */
 825                         int is_anonymous,
 826                         int format_type,
 827                         int mode,
 828                         char *subject,          /* buffer to store subject line */
 829                         int subject_required
 830 ) {
 831         FILE *fp;
 832         int a, b, e_ex_code;
 833         long beg;
 834         char datestr[SIZ];
 835         char header[SIZ];
 836         char *editor_path = NULL;
 837         int cksum = 0;
 838
 839         if (mode >= 2)
 840         {
 841                 if ((mode-2) < MAX_EDITORS && !IsEmptyStr(editor_paths[mode-2]))
 842                 {
 843                         editor_path = editor_paths[mode-2];
 844                 } else if (!IsEmptyStr(editor_paths[0]))
 845                 {
 846                         editor_path = editor_paths[0];
 847                 } else {
 848                         scr_printf("*** No editor available; using built-in editor.\n");
 849                         mode = 0;
 850                 }
 851         }
 852
 853         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 854         header[0] = 0;
 855
 856         if (room_flags & QR_ANONONLY && !recipient) {
 857                 snprintf(header, sizeof header, " ****");
 858         }
 859         else {
 860                 snprintf(header, sizeof header,
 861                         " %s from %s",
 862                         datestr,
 863                         (is_anonymous ? "[anonymous]" : fullname)
 864                         );
 865                 if (!IsEmptyStr(recipient)) {
 866                         size_t tmp = strlen(header);
 867                         snprintf(&header[tmp], sizeof header - tmp,
 868                                 " to %s", recipient);
 869                 }
 870         }
 871         scr_printf("%s\n", header);
 872         if (subject != NULL) if (!IsEmptyStr(subject)) {
 873                 scr_printf("Subject: %s\n", subject);
 874         }
 875
 876         if ( (subject_required) && (IsEmptyStr(subject)) ) {
 877                 newprompt("Subject: ", subject, 70);
 878         }
 879
 880         beg = 0L;
 881
 882         if (mode == 1) {
 883                 scr_printf("(Press ctrl-d when finished)\n");
 884         }
 885
 886         if (mode == 0) {
 887                 fp = fopen(filename, "r");
 888                 if (fp != NULL) {
 889                         fmout(screenwidth, fp, NULL, NULL, 0);
 890                         beg = ftell(fp);
 891                         fclose(fp);
 892                 } else {
 893                         fp = fopen(filename, "w");
 894                         if (fp == NULL) {
 895                                 scr_printf("*** Error opening temp file!\n    %s: %s\n",
 896                                         filename, strerror(errno)
 897                                 );
 898                         return(1);
 899                         }
 900                         fclose(fp);
 901                 }
 902         }
 903
 904 ME1:    switch (mode) {
 905
 906         case 0:
 907                 fp = fopen(filename, "r+");
 908                 if (fp == NULL) {
 909                         scr_printf("*** Error opening temp file!\n    %s: %s\n",
 910                                 filename, strerror(errno)
 911                         );
 912                         return(1);
 913                 }
 914                 citedit(fp);
 915                 fclose(fp);
 916                 goto MECR;
 917
 918         case 1:
 919                 fp = fopen(filename, "a");
 920                 if (fp == NULL) {
 921                         scr_printf("*** Error opening temp file!\n"
 922                                 "    %s: %s\n",
 923                                 filename, strerror(errno));
 924                         return(1);
 925                 }
 926                 do {
 927                         a = inkey();
 928                         if (a == 255)
 929                                 a = 32;
 930                         if (a == 13)
 931                                 a = 10;
 932                         if (a != 4) {
 933                                 putc(a, fp);
 934                                 scr_putc(a);
 935                         }
 936                         if (a == 10)
 937                                 scr_putc(10);
 938                 } while (a != 4);
 939                 fclose(fp);
 940                 break;
 941
 942         case 2:
 943         default:        /* allow 2+ modes */
 944                 e_ex_code = 1;  /* start with a failed exit code */
 945                 stty_ctdl(SB_RESTORE);
 946                 editor_pid = fork();
 947                 cksum = file_checksum(filename);
 948                 if (editor_pid == 0) {
 949                         char tmp[SIZ];
 950
 951                         chmod(filename, 0600);
 952                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 953                         putenv(tmp);
 954                         execlp(editor_path, editor_path, filename, NULL);
 955                         exit(1);
 956                 }
 957                 if (editor_pid > 0)
 958                         do {
 959                                 e_ex_code = 0;
 960                                 b = ka_wait(&e_ex_code);
 961                         } while ((b != editor_pid) && (b >= 0));
 962                 editor_pid = (-1);
 963                 stty_ctdl(0);
 964                 break;
 965         }
 966
 967 MECR:   if (mode >= 2) {
 968                 if (file_checksum(filename) == cksum) {
 969                         scr_printf("*** Aborted message.\n");
 970                         e_ex_code = 1;
 971                 }
 972                 if (e_ex_code == 0) {
 973                         goto MEFIN;
 974                 }
 975                 goto MEABT2;
 976         }
 977
 978         b = keymenu("Entry command (? for options)",
 979                 "<A>bort|"
 980                 "<C>ontinue|"
 981                 "<S>ave message|"
 982                 "<P>rint formatted|"
 983                 "add s<U>bject|"
 984                 "<R>eplace string|"
 985                 "<H>old message"
 986         );
 987
 988         if (b == 'a') goto MEABT;
 989         if (b == 'c') goto ME1;
 990         if (b == 's') goto MEFIN;
 991         if (b == 'p') {
 992                 scr_printf(" %s from %s", datestr, fullname);
 993                 if (!IsEmptyStr(recipient)) {
 994                         scr_printf(" to %s", recipient);
 995                 }
 996                 scr_printf("\n");
 997                 if (subject != NULL) if (!IsEmptyStr(subject)) {
 998                         scr_printf("Subject: %s\n", subject);
 999                 }
1000                 fp = fopen(filename, "r");
1001                 if (fp != NULL) {
1002                         fmout(screenwidth, fp, NULL, NULL, 0);
1003                         beg = ftell(fp);
1004                         fclose(fp);
1005                 }
1006                 goto MECR;
1007         }
1008         if (b == 'r') {
1009                 replace_string(filename, 0L);
1010                 goto MECR;
1011         }
1012         if (b == 'h') {
1013                 return (2);
1014         }
1015         if (b == 'u') {
1016                 if (subject != NULL) {
1017                         newprompt("Subject: ", subject, 70);
1018                 }
1019                 goto MECR;
1020         }
1021
1022 MEFIN:  return (0);
1023
1024 MEABT:  scr_printf("Are you sure? ");
1025         if (yesno() == 0) {
1026                 goto ME1;
1027         }
1028 MEABT2: unlink(filename);
1029         return (2);
1030 }
1031
1032
1033 /*
1034  * Make sure there's room in msg_arr[] for at least one more.
1035  */
1036 void check_msg_arr_size(void) {
1037         if ((num_msgs + 1) > msg_arr_size) {
1038                 msg_arr_size += 512;
1039                 msg_arr = realloc(msg_arr,
1040                         ((sizeof(long)) * msg_arr_size) );
1041         }
1042 }
1043
1044
1045 /*
1046  * break_big_lines()  -  break up lines that are >1024 characters
1047  *                       otherwise the server will truncate
1048  */
1049 void break_big_lines(char *msg) {
1050         char *ptr;
1051         char *break_here;
1052
1053         if (msg == NULL) {
1054                 return;
1055         }
1056
1057         ptr = msg;
1058         while (strlen(ptr) > 1000) {
1059                 break_here = strchr(&ptr[900], ' ');
1060                 if ((break_here == NULL) || (break_here > &ptr[999])) {
1061                         break_here = &ptr[999];
1062                 }
1063                 *break_here = '\n';
1064                 ptr = break_here++;
1065         }
1066 }
1067
1068
1069 /*
1070  * entmsg()  -  edit and create a message
1071  *              returns 0 if message was saved
1072  */
1073 int entmsg(CtdlIPC *ipc,
1074                 int is_reply,   /* nonzero if this was a <R>eply command */
1075                 int c,          /* mode */
1076                 int masquerade  /* prompt for a non-default display name? */
1077 ) {
1078         char buf[SIZ];
1079         int a, b;
1080         int need_recp = 0;
1081         int mode;
1082         long highmsg = 0L;
1083         FILE *fp;
1084         char subject[SIZ];
1085         struct ctdlipcmessage message;
1086         unsigned long *msgarr = NULL;
1087         int r;                  /* IPC response code */
1088         int subject_required = 0;
1089
1090         if (!entmsg_ok) {
1091                 scr_printf("You may not enter messages in this type of room.\n");
1092                 return(1);
1093         }
1094
1095         if (c > 0) {
1096                 mode = 1;
1097         }
1098         else {
1099                 mode = 0;
1100         }
1101
1102         strcpy(subject, "");
1103
1104         /*
1105          * First, check to see if we have permission to enter a message in
1106          * this room.  The server will return an error code if we can't.
1107          */
1108         strcpy(message.recipient, "");
1109         strcpy(message.author, "");
1110         strcpy(message.subject, "");
1111         strcpy(message.references, "");
1112         message.text = "";              /* point to "", changes later */
1113         message.anonymous = 0;
1114         message.type = mode;
1115
1116         if (masquerade) {
1117                 newprompt("Display name for this message: ", message.author, 40);
1118         }
1119
1120         if (is_reply) {
1121
1122                 if (!IsEmptyStr(reply_subject)) {
1123                         if (!strncasecmp(reply_subject,
1124                            "Re: ", 3)) {
1125                                 strcpy(message.subject, reply_subject);
1126                         }
1127                         else {
1128                                 snprintf(message.subject,
1129                                         sizeof message.subject,
1130                                         "Re: %s",
1131                                         reply_subject);
1132                         }
1133                 }
1134
1135                 /* Trim down excessively long lists of thread references.  We eliminate the
1136                  * second one in the list so that the thread root remains intact.
1137                  */
1138                 int rrtok = num_tokens(reply_references, '|');
1139                 int rrlen = strlen(reply_references);
1140                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1141                         remove_token(reply_references, 1, '|');
1142                 }
1143
1144                 snprintf(message.references, sizeof message.references, "%s%s%s",
1145                         reply_references,
1146                         (IsEmptyStr(reply_references) ? "" : "|"),
1147                         reply_inreplyto
1148                 );
1149         }
1150
1151         r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1152
1153         if (r / 100 != 2 && r / 10 != 57) {
1154                 scr_printf("%s\n", buf);
1155                 return (1);
1156         }
1157
1158         /* Error code 570 is special.  It means that we CAN enter a message
1159          * in this room, but a recipient needs to be specified.
1160          */
1161         need_recp = 0;
1162         if (r / 10 == 57) {
1163                 need_recp = 1;
1164         }
1165
1166         /* If the user is a dumbass, tell them how to type. */
1167         if ((userflags & US_EXPERT) == 0) {
1168                 formout(ipc, "entermsg");
1169         }
1170
1171         /* Handle the selection of a recipient, if necessary. */
1172         strcpy(buf, "");
1173         if (need_recp == 1) {
1174                 if (axlevel >= AxProbU) {
1175                         if (is_reply) {
1176                                 strcpy(buf, reply_to);
1177                         } else {
1178                                 scr_printf("Enter recipient: ");
1179                                 ctdl_getline(buf, (SIZ-100) );
1180                                 if (IsEmptyStr(buf))
1181                                         return (1);
1182                         }
1183                 } else
1184                         strcpy(buf, "sysop");
1185         }
1186         strcpy(message.recipient, buf);
1187
1188         if (room_flags & QR_ANONOPT) {
1189                 scr_printf("Anonymous (Y/N)? ");
1190                 if (yesno() == 1)
1191                         message.anonymous = 1;
1192         }
1193
1194         /* If it's mail, we've got to check the validity of the recipient... */
1195         if (!IsEmptyStr(message.recipient)) {
1196                 r = CtdlIPCPostMessage(ipc, 0, &subject_required,  &message, buf);
1197                 if (r / 100 != 2) {
1198                         scr_printf("%s\n", buf);
1199                         return (1);
1200                 }
1201         }
1202
1203         /* Learn the number of the newest message in in the room, so we can
1204          * tell upon saving whether someone else has posted too.
1205          */
1206         num_msgs = 0;
1207         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1208         if (r / 100 != 1) {
1209                 scr_printf("%s\n", buf);
1210         } else {
1211                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1212                         ;
1213         }
1214
1215         /* Now compose the message... */
1216         if (client_make_message(ipc, temp, message.recipient,
1217            message.anonymous, 0, c, message.subject, subject_required) != 0) {
1218             if (msgarr) free(msgarr);
1219                 return (2);
1220         }
1221
1222         /* Reopen the temp file that was created, so we can send it */
1223         fp = fopen(temp, "r");
1224
1225         if (!fp || !(message.text = load_message_from_file(fp))) {
1226                 scr_printf("*** Internal error while trying to save message!\n"
1227                         "%s: %s\n",
1228                         temp, strerror(errno));
1229                 unlink(temp);
1230                 return(errno);
1231         }
1232
1233         if (fp) fclose(fp);
1234
1235         /* Break lines that are >1024 characters, otherwise the server
1236          * will truncate them.
1237          */
1238         break_big_lines(message.text);
1239
1240         /* Transmit message to the server */
1241         r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1242         if (r / 100 != 4) {
1243                 scr_printf("%s\n", buf);
1244                 return (1);
1245         }
1246
1247         /* Yes, unlink it now, so it doesn't stick around if we crash */
1248         unlink(temp);
1249
1250         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1251
1252         if (msgarr) free(msgarr);
1253         msgarr = NULL;
1254         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1255         if (r / 100 != 1) {
1256                 scr_printf("%s\n", buf);
1257         } else {
1258                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1259                         ;
1260         }
1261
1262         /* get new highest message number in room to set lrp for goto... */
1263         maxmsgnum = msgarr[num_msgs - 1];
1264
1265         /* now see if anyone else has posted in here */
1266         b = (-1);
1267         for (a = 0; a < num_msgs; ++a) {
1268                 if (msgarr[a] > highmsg) {
1269                         ++b;
1270                 }
1271         }
1272         if (msgarr) free(msgarr);
1273         msgarr = NULL;
1274
1275         /* In the Mail> room, this algorithm always counts one message
1276          * higher than in public rooms, so we decrement it by one.
1277          */
1278         if (need_recp) {
1279                 --b;
1280         }
1281
1282         if (b == 1) {
1283                 scr_printf("*** 1 additional message has been entered "
1284                         "in this room by another user.\n");
1285         }
1286         else if (b > 1) {
1287                 scr_printf("*** %d additional messages have been entered "
1288                         "in this room by other users.\n", b);
1289         }
1290     free(message.text);
1291
1292         return(0);
1293 }
1294
1295 /*
1296  * Do editing on a quoted file
1297  */
1298 void process_quote(void)
1299 {
1300         FILE *qfile, *tfile;
1301         char buf[128];
1302         int line, qstart, qend;
1303
1304         /* Unlink the second temp file as soon as it's opened, so it'll get
1305          * deleted even if the program dies
1306          */
1307         qfile = fopen(temp2, "r");
1308         unlink(temp2);
1309
1310         /* Display the quotable text with line numbers added */
1311         line = 0;
1312         if (fgets(buf, 128, qfile) == NULL) {
1313                 /* we're skipping a line here */
1314         }
1315         while (fgets(buf, 128, qfile) != NULL) {
1316                 scr_printf("%3d %s", ++line, buf);
1317         }
1318         scr_printf("Begin quoting at [1] : ");
1319         ctdl_getline(buf, 4);
1320         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1321         scr_printf("  End quoting at [%d] : ", line);
1322         ctdl_getline(buf, 4);
1323         qend = (buf[0] == 0) ? (line) : atoi(buf);
1324         rewind(qfile);
1325         line = 0;
1326         if (fgets(buf, 128, qfile) == NULL) {
1327                 /* we're skipping a line here */
1328         }
1329         tfile = fopen(temp, "w");
1330         while (fgets(buf, 128, qfile) != NULL) {
1331                 if ((++line >= qstart) && (line <= qend))
1332                         fprintf(tfile, " >%s", buf);
1333         }
1334         fprintf(tfile, " \n");
1335         fclose(qfile);
1336         fclose(tfile);
1337         chmod(temp, 0666);
1338 }
1339
1340
1341
1342 /*
1343  * List the URL's which were embedded in the previous message
1344  */
1345 void list_urls(CtdlIPC *ipc)
1346 {
1347         int i;
1348         char cmd[SIZ];
1349         int rv;
1350
1351         if (num_urls == 0) {
1352                 scr_printf("There were no URL's in the previous message.\n\n");
1353                 return;
1354         }
1355
1356         for (i = 0; i < num_urls; ++i) {
1357                 scr_printf("%3d %s\n", i + 1, urls[i]);
1358         }
1359
1360         if ((i = num_urls) != 1)
1361                 i = intprompt("Display which one", 1, 1, num_urls);
1362
1363         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1364         rv = system(cmd);
1365         scr_printf("\n");
1366 }
1367
1368
1369 /*
1370  * Run image viewer in background
1371  */
1372 int do_image_view(const char *filename)
1373 {
1374         char cmd[SIZ];
1375         pid_t childpid;
1376
1377         snprintf(cmd, sizeof cmd, imagecmd, filename);
1378         childpid = fork();
1379         if (childpid < 0) {
1380                 unlink(filename);
1381                 return childpid;
1382         }
1383
1384         if (childpid == 0) {
1385                 int retcode;
1386                 pid_t grandchildpid;
1387
1388                 grandchildpid = fork();
1389                 if (grandchildpid < 0) {
1390                         return grandchildpid;
1391                 }
1392
1393                 if (grandchildpid == 0) {
1394                         int nullfd;
1395                         int outfd = -1;
1396                         int errfd = -1;
1397
1398                         nullfd = open("/dev/null", O_WRONLY);
1399                         if (nullfd > -1) {
1400                                 dup2(1, outfd);
1401                                 dup2(2, errfd);
1402                                 dup2(nullfd, 1);
1403                                 dup2(nullfd, 2);
1404                         }
1405                         retcode = system(cmd);
1406                         if (nullfd > -1) {
1407                                 dup2(outfd, 1);
1408                                 dup2(errfd, 2);
1409                                 close(nullfd);
1410                         }
1411                         unlink(filename);
1412                         exit(retcode);
1413                 }
1414
1415                 if (grandchildpid > 0) {
1416                         exit(0);
1417                 }
1418         }
1419
1420         if (childpid > 0) {
1421                 int retcode;
1422
1423                 waitpid(childpid, &retcode, 0);
1424                 return retcode;
1425         }
1426
1427         return -1;
1428 }
1429
1430
1431 /*
1432  * View an image attached to a message
1433  */
1434 void image_view(CtdlIPC *ipc, unsigned long msg)
1435 {
1436         struct parts *ptr = last_message_parts;
1437         char part[SIZ];
1438         int found = 0;
1439
1440         /* Run through available parts */
1441         for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1442                 if ((!strcasecmp(ptr->disposition, "attachment")
1443                    || !strcasecmp(ptr->disposition, "inline"))
1444                    && !strncmp(ptr->mimetype, "image/", 6)) {
1445                         found++;
1446                         if (found == 1) {
1447                                 strcpy(part, ptr->number);
1448                         }
1449                 }
1450         }
1451
1452         while (found > 0) {
1453                 if (found > 1)
1454                         strprompt("View which part (0 when done)", part, SIZ-1);
1455                 found = -found;
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                            && !strcasecmp(ptr->number, part)) {
1461                                 char tmp[PATH_MAX];
1462                                 char buf[SIZ];
1463                                 void *file = NULL; /* The downloaded file */
1464                                 int r;
1465
1466                                 /* view image */
1467                                 found = -found;
1468                                 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1469                                 if (r / 100 != 2) {
1470                                         scr_printf("%s\n", buf);
1471                                 } else {
1472                                         size_t len;
1473
1474                                         len = (size_t)extract_long(buf, 0);
1475                                         progress(ipc, len, len);
1476                                         scr_flush();
1477                                         CtdlMakeTempFileName(tmp, sizeof tmp);
1478                                         strcat(tmp, ptr->filename);
1479                                         save_buffer(file, len, tmp);
1480                                         free(file);
1481                                         do_image_view(tmp);
1482                                 }
1483                                 break;
1484                         }
1485                 }
1486                 if (found == 1)
1487                         break;
1488         }
1489 }
1490
1491
1492 /*
1493  * Read the messages in the current room
1494  */
1495 void readmsgs(CtdlIPC *ipc,
1496         enum MessageList c,             /* see listing in citadel_ipc.h */
1497         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1498         int q           /* Number of msgs to read (if c==3) */
1499 ) {
1500         int a, b, e, f, g, start;
1501         int savedpos;
1502         int hold_sw = 0;
1503         char arcflag = 0;
1504         char quotflag = 0;
1505         int hold_color = 0;
1506         char prtfile[PATH_MAX];
1507         char pagin;
1508         char cmd[SIZ];
1509         char targ[ROOMNAMELEN];
1510         char filename[PATH_MAX];
1511         char save_to[PATH_MAX];
1512         void *attachment = NULL;        /* Downloaded attachment */
1513         FILE *dest = NULL;              /* Alternate destination other than screen */
1514         int r;                          /* IPC response code */
1515         static int att_seq = 0;         /* Attachment download sequence number */
1516         int rv = 0;                     /* silence the stupid warn_unused_result warnings */
1517
1518         if (c < 0)
1519                 b = (num_msgs - 1);
1520         else
1521                 b = 0;
1522
1523         CtdlMakeTempFileName(prtfile, sizeof prtfile);
1524
1525         if (msg_arr) {
1526                 free(msg_arr);
1527                 msg_arr = NULL;
1528         }
1529         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1530         if (r / 100 != 1) {
1531                 scr_printf("%s\n", cmd);
1532         } else {
1533                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1534                         ;
1535         }
1536
1537         if (num_msgs == 0) {    /* TODO look at this later */
1538                 if (c == LastMessages) return;
1539                 scr_printf("*** There are no ");
1540                 if (c == NewMessages) scr_printf("new ");
1541                 if (c == OldMessages) scr_printf("old ");
1542                 scr_printf("messages in this room.\n");
1543                 return;
1544         }
1545
1546         /* this loop cycles through each message... */
1547         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1548         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1549                 while (msg_arr[a] == 0L) {
1550                         a = a + rdir;
1551                         if ((a == num_msgs) || (a == (-1)))
1552                                 return;
1553                 }
1554
1555 RAGAIN:         pagin = ((arcflag == 0)
1556                          && (quotflag == 0)
1557                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1558
1559                 /* If we're doing a quote, set the screenwidth to 72 */
1560                 if (quotflag) {
1561                         hold_sw = screenwidth;
1562                         screenwidth = 72;
1563                 }
1564
1565                 /* If printing or archiving, set the screenwidth to 80 */
1566                 if (arcflag) {
1567                         hold_sw = screenwidth;
1568                         screenwidth = 80;
1569                 }
1570
1571                 /* clear parts list */
1572                 free_parts(last_message_parts);
1573                 last_message_parts = NULL;
1574
1575                 /* now read the message... */
1576                 e = read_message(ipc, msg_arr[a], pagin, dest);
1577
1578                 /* ...and set the screenwidth back if we have to */
1579                 if ((quotflag) || (arcflag)) {
1580                         screenwidth = hold_sw;
1581                 }
1582 RMSGREAD:       scr_flush();
1583                 highest_msg_read = msg_arr[a];
1584                 if (quotflag) {
1585                         fclose(dest);
1586                         dest = NULL;
1587                         quotflag = 0;
1588                         enable_color = hold_color;
1589                         process_quote();
1590                         e = 'r';
1591                         goto DONE_QUOTING;
1592                 }
1593                 if (arcflag) {
1594                         fclose(dest);
1595                         dest = NULL;
1596                         arcflag = 0;
1597                         enable_color = hold_color;
1598                         f = fork();
1599                         if (f == 0) {
1600                                 if (freopen(prtfile, "r", stdin) == NULL) {
1601                                         /* we probably should handle the error condition here */
1602                                 }
1603                                 stty_ctdl(SB_RESTORE);
1604                                 ka_system(printcmd);
1605                                 stty_ctdl(SB_NO_INTR);
1606                                 unlink(prtfile);
1607                                 exit(0);
1608                         }
1609                         if (f > 0)
1610                                 do {
1611                                         g = wait(NULL);
1612                                 } while ((g != f) && (g >= 0));
1613                         scr_printf("Message printed.\n");
1614                 }
1615                 if (rc_alt_semantics && c == 1) {
1616                         char buf[SIZ];
1617
1618                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1619                 }
1620                 if (e == SIGQUIT)
1621                         return;
1622                 if (((userflags & US_NOPROMPT) || (e == SIGINT))
1623                         && (((room_flags & QR_MAILBOX) == 0)
1624                         || (rc_force_mail_prompts == 0))) {
1625                         e = 'n';
1626                 } else {
1627                         color(DIM_WHITE);
1628                         scr_printf("(");
1629                         color(BRIGHT_WHITE);
1630                         scr_printf("%d", num_msgs - a - 1);
1631                         color(DIM_WHITE);
1632                         scr_printf(") ");
1633
1634                         keyopt("<B>ack <A>gain <R>eply reply<Q>uoted <N>ext <S>top ");
1635                         if (rc_url_cmd[0] && num_urls)
1636                                 keyopt("<U>RLview ");
1637                         if (has_images > 0 && !IsEmptyStr(imagecmd))
1638                                 keyopt("<I>mages ");
1639                         keyopt("<?>help -> ");
1640
1641                         do {
1642                                 e = (inkey() & 127);
1643                                 e = tolower(e);
1644 /* return key same as <N> */ if (e == 10)
1645                                         e = 'n';
1646 /* space key same as <N> */ if (e == 32)
1647                                         e = 'n';
1648 /* del/move for aides only */
1649                                     if (  (!is_room_aide)
1650                                        && ((room_flags & QR_MAILBOX) == 0)
1651                                        && ((room_flags2 & QR2_COLLABDEL) == 0)
1652                                        ) {
1653                                         if ((e == 'd') || (e == 'm'))
1654                                                 e = 0;
1655                                 }
1656 /* print only if available */
1657                                 if ((e == 'p') && (IsEmptyStr(printcmd)))
1658                                         e = 0;
1659 /* can't file if not allowed */
1660                                     if ((e == 'f')
1661                                         && (rc_allow_attachments == 0))
1662                                         e = 0;
1663 /* link only if browser avail*/
1664                                     if ((e == 'u')
1665                                         && (IsEmptyStr(rc_url_cmd)))
1666                                         e = 0;
1667                                 if ((e == 'i')
1668                                         && (IsEmptyStr(imagecmd) || !has_images))
1669                                         e = 0;
1670                         } while ((e != 'a') && (e != 'n') && (e != 's')
1671                                  && (e != 'd') && (e != 'm') && (e != 'p')
1672                                  && (e != 'q') && (e != 'b') && (e != 'h')
1673                                  && (e != 'r') && (e != 'f') && (e != '?')
1674                                  && (e != 'u') && (e != 'c') && (e != 'y')
1675                                  && (e != 'i') && (e != 'o') );
1676                         switch (e) {
1677                         case 's':
1678                                 scr_printf("Stop");
1679                                 break;
1680                         case 'a':
1681                                 scr_printf("Again");
1682                                 break;
1683                         case 'd':
1684                                 scr_printf("Delete");
1685                                 break;
1686                         case 'm':
1687                                 scr_printf("Move");
1688                                 break;
1689                         case 'c':
1690                                 scr_printf("Copy");
1691                                 break;
1692                         case 'n':
1693                                 scr_printf("Next");
1694                                 break;
1695                         case 'p':
1696                                 scr_printf("Print");
1697                                 break;
1698                         case 'q':
1699                                 scr_printf("reply Quoted");
1700                                 break;
1701                         case 'b':
1702                                 scr_printf("Back");
1703                                 break;
1704                         case 'h':
1705                                 scr_printf("Header");
1706                                 break;
1707                         case 'r':
1708                                 scr_printf("Reply");
1709                                 break;
1710                         case 'o':
1711                                 scr_printf("Open attachments");
1712                                 break;
1713                         case 'f':
1714                                 scr_printf("File");
1715                                 break;
1716                         case 'u':
1717                                 scr_printf("URL's");
1718                                 break;
1719                         case 'y':
1720                                 scr_printf("mY next");
1721                                 break;
1722                         case 'i':
1723                                 break;
1724                         case '?':
1725                                 scr_printf("? <help>");
1726                                 break;
1727                         }
1728                         if (userflags & US_DISAPPEAR || e == 'i')
1729                                 scr_printf("\r%79s\r", "");
1730                         else
1731                                 scr_printf("\n");
1732                         scr_flush();
1733                 }
1734 DONE_QUOTING:   switch (e) {
1735                 case '?':
1736                         scr_printf("Options available here:\n"
1737                                 " ?  Help (prints this message)\n"
1738                                 " S  Stop reading immediately\n"
1739                                 " A  Again (repeats last message)\n"
1740                                 " N  Next (continue with next message)\n"
1741                                 " Y  My Next (continue with next message you authored)\n"
1742                                 " B  Back (go back to previous message)\n");
1743                         if (  (is_room_aide)
1744                            || (room_flags & QR_MAILBOX)
1745                            || (room_flags2 & QR2_COLLABDEL)
1746                         ) {
1747                                 scr_printf(" D  Delete this message\n"
1748                                         " M  Move message to another room\n");
1749                         }
1750                         scr_printf(" C  Copy message to another room\n");
1751                         if (!IsEmptyStr(printcmd))
1752                                 scr_printf(" P  Print this message\n");
1753                         scr_printf(
1754                                 " Q  Reply to this message, quoting portions of it\n"
1755                                 " H  Headers (display message headers only)\n");
1756                         if (is_mail)
1757                                 scr_printf(" R  Reply to this message\n");
1758                         if (rc_allow_attachments) {
1759                                 scr_printf(" O  (Open attachments)\n");
1760                                 scr_printf(" F  (save attachments to a File)\n");
1761                         }
1762                         if (!IsEmptyStr(rc_url_cmd))
1763                                 scr_printf(" U  (list URL's for display)\n");
1764                         if (!IsEmptyStr(imagecmd) && has_images > 0)
1765                                 scr_printf(" I  Image viewer\n");
1766                         scr_printf("\n");
1767                         goto RMSGREAD;
1768                 case 'p':
1769                         scr_flush();
1770                         dest = fopen(prtfile, "w");
1771                         arcflag = 1;
1772                         hold_color = enable_color;
1773                         enable_color = 0;
1774                         goto RAGAIN;
1775                 case 'q':
1776                         scr_flush();
1777                         dest = fopen(temp2, "w");
1778                         quotflag = 1;
1779                         hold_color = enable_color;
1780                         enable_color = 0;
1781                         goto RAGAIN;
1782                 case 's':
1783                         return;
1784                 case 'a':
1785                         goto RAGAIN;
1786                 case 'b':
1787                         a = a - (rdir * 2);
1788                         break;
1789                 case 'm':
1790                 case 'c':
1791                         newprompt("Enter target room: ",
1792                                   targ, ROOMNAMELEN - 1);
1793                         if (!IsEmptyStr(targ)) {
1794                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1795                                                        msg_arr[a], targ, cmd);
1796                                 scr_printf("%s\n", cmd);
1797                                 if (r / 100 == 2)
1798                                         msg_arr[a] = 0L;
1799                         } else {
1800                                 goto RMSGREAD;
1801                         }
1802                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1803                                 goto RMSGREAD;  /* the logic here sucks */
1804                         break;
1805                 case 'o':
1806                 case 'f':
1807                         newprompt("Which section? ", filename, ((sizeof filename) - 1));
1808                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1809                                         filename, &attachment, progress, cmd);
1810                         if (r / 100 != 2) {
1811                                 scr_printf("%s\n", cmd);
1812                         } else {
1813                                 extract_token(filename, cmd, 2, '|', sizeof filename);
1814                                 /*
1815                                  * Part 1 won't have a filename; use the
1816                                  * subject of the message instead. IO
1817                                  */
1818                                 if (IsEmptyStr(filename)) {
1819                                         strcpy(filename, reply_subject);
1820                                 }
1821                                 if (e == 'o') {         /* open attachment */
1822                                         mkdir(tempdir, 0700);
1823                                         snprintf(save_to, sizeof save_to, "%s/%04x.%s",
1824                                                 tempdir,
1825                                                 ++att_seq,
1826                                                 filename);
1827                                         save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1828                                         snprintf(cmd, sizeof cmd, rc_open_cmd, save_to);
1829                                         rv = system(cmd);
1830                                 }
1831                                 else {                  /* save attachment to disk */
1832                                         destination_directory(save_to, filename);
1833                                         save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1834                                 }
1835                         }
1836                         if (attachment) {
1837                                 free(attachment);
1838                                 attachment = NULL;
1839                         }
1840                         goto RMSGREAD;
1841                 case 'd':
1842                         scr_printf("*** Delete this message? ");
1843                         if (yesno() == 1) {
1844                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1845                                 scr_printf("%s\n", cmd);
1846                                 if (r / 100 == 2)
1847                                         msg_arr[a] = 0L;
1848                         } else {
1849                                 goto RMSGREAD;
1850                         }
1851                         break;
1852                 case 'h':
1853                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1854                         goto RMSGREAD;
1855                 case 'r':
1856                         savedpos = num_msgs;
1857                         entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1858                         num_msgs = savedpos;
1859                         goto RMSGREAD;
1860                 case 'u':
1861                         list_urls(ipc);
1862                         goto RMSGREAD;
1863                 case 'i':
1864                         image_view(ipc, msg_arr[a]);
1865                         goto RMSGREAD;
1866             case 'y':
1867           { /* hack hack hack */
1868             /* find the next message by me, stay here if we find nothing */
1869             int finda;
1870             int lasta = a;
1871             for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1872               {
1873                 /* This is repetitively dumb, but that's what computers are for.
1874                    We have to load up messages until we find one by us */
1875                 char buf[SIZ];
1876                 int founda = 0;
1877                 struct ctdlipcmessage *msg = NULL;
1878
1879                 /* read the header so we can get 'from=' */
1880                 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1881                 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1882                         a = lasta; /* meesa current */
1883                         founda = 1;
1884                 }
1885
1886                 free(msg);
1887
1888                 if (founda)
1889                         break; /* for */
1890                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1891               } /* for */
1892           } /* case 'y' */
1893       } /* switch */
1894         }                       /* end for loop */
1895 }                               /* end read routine */
1896
1897
1898
1899
1900 /*
1901  * View and edit a system message
1902  */
1903 void edit_system_message(CtdlIPC *ipc, char *which_message)
1904 {
1905         char desc[SIZ];
1906         char read_cmd[SIZ];
1907         char write_cmd[SIZ];
1908
1909         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1910         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1911         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1912         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1913 }
1914
1915
1916
1917
1918 /*
1919  * Verify the message base
1920  */
1921 void check_message_base(CtdlIPC *ipc)
1922 {
1923         char buf[SIZ];
1924         char *transcript = NULL;
1925         int r;          /* IPC response code */
1926
1927         scr_printf
1928             ("Please read the documentation before running this command.\n"
1929             "Having done so, do you still want to check the message base? ");
1930         if (yesno() == 0)
1931                 return;
1932
1933         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1934         if (r / 100 != 1) {
1935                 scr_printf("%s\n", buf);
1936                 return;
1937         }
1938
1939         while (transcript && !IsEmptyStr(transcript)) {
1940                 extract_token(buf, transcript, 0, '\n', sizeof buf);
1941                 remove_token(transcript, 0, '\n');
1942                 scr_printf("%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 }