citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel/UX 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 #include <stdarg.h>
  34 #include "citadel.h"
  35 #include "citadel_ipc.h"
  36 #include "citadel_decls.h"
  37 #include "messages.h"
  38 #include "commands.h"
  39 #include "rooms.h"
  40 #include "tools.h"
  41 #include "html.h"
  42 #ifndef HAVE_SNPRINTF
  43 #include "snprintf.h"
  44 #endif
  45 #include "screen.h"
  46
  47 #define MAXWORDBUF SIZ
  48 #define NO_REPLY_TO     "nobody ... xxxxxx"
  49
  50 char reply_to[SIZ];
  51 char reply_subject[SIZ];
  52
  53 struct cittext {
  54         struct cittext *next;
  55         char text[MAXWORDBUF];
  56 };
  57
  58 void sttybbs(int cmd);
  59 int haschar(const char *st, int ch);
  60 void getline(char *string, int lim);
  61 int file_checksum(char *filename);
  62 void progress(unsigned long curr, unsigned long cmax);
  63
  64 unsigned long *msg_arr = NULL;
  65 int msg_arr_size = 0;
  66 int num_msgs;
  67 char rc_alt_semantics;
  68 extern char room_name[];
  69 extern unsigned room_flags;
  70 extern long highest_msg_read;
  71 extern struct CtdlServInfo serv_info;
  72 extern char temp[];
  73 extern char temp2[];
  74 extern int screenwidth;
  75 extern int screenheight;
  76 extern long maxmsgnum;
  77 extern char is_mail;
  78 extern char is_aide;
  79 extern char is_room_aide;
  80 extern char fullname[];
  81 extern char axlevel;
  82 extern unsigned userflags;
  83 extern char sigcaught;
  84 extern char printcmd[];
  85 extern int rc_allow_attachments;
  86 extern int rc_display_message_numbers;
  87 extern int rc_force_mail_prompts;
  88 extern int editor_pid;
  89 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  90
  91 void ka_sigcatch(int signum)
  92 {
  93         alarm(S_KEEPALIVE);
  94         signal(SIGALRM, ka_sigcatch);
  95         CtdlIPCNoop(ipc_for_signal_handlers);
  96 }
  97
  98
  99 /*
 100  * server keep-alive version of wait() (needed for external editor)
 101  */
 102 pid_t ka_wait(int *kstatus)
 103 {
 104         pid_t p;
 105
 106         alarm(S_KEEPALIVE);
 107         signal(SIGALRM, ka_sigcatch);
 108         do {
 109                 errno = 0;
 110                 p = wait(kstatus);
 111         } while (errno == EINTR);
 112         signal(SIGALRM, SIG_IGN);
 113         alarm(0);
 114         return (p);
 115 }
 116
 117
 118 /*
 119  * version of system() that uses ka_wait()
 120  */
 121 int ka_system(char *shc)
 122 {
 123         pid_t childpid;
 124         pid_t waitpid;
 125         int retcode;
 126
 127         childpid = fork();
 128         if (childpid < 0) {
 129                 color(BRIGHT_RED);
 130                 perror("Cannot fork");
 131                 color(DIM_WHITE);
 132                 return ((pid_t) childpid);
 133         }
 134
 135         if (childpid == 0) {
 136                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 137                 exit(127);
 138         }
 139
 140         if (childpid > 0) {
 141                 do {
 142                         waitpid = ka_wait(&retcode);
 143                 } while (waitpid != childpid);
 144                 return (retcode);
 145         }
 146
 147         return (-1);
 148 }
 149
 150
 151
 152 /*
 153  * add a newline to the buffer...
 154  */
 155 void add_newline(struct cittext *textlist)
 156 {
 157         struct cittext *ptr;
 158
 159         ptr = textlist;
 160         while (ptr->next != NULL)
 161                 ptr = ptr->next;
 162
 163         while (ptr->text[strlen(ptr->text) - 1] == 32)
 164                 ptr->text[strlen(ptr->text) - 1] = 0;
 165         /* strcat(ptr->text,"\n"); */
 166
 167         ptr->next = (struct cittext *)
 168             malloc(sizeof(struct cittext));
 169         ptr = ptr->next;
 170         ptr->next = NULL;
 171         strcpy(ptr->text, "");
 172 }
 173
 174
 175 /*
 176  * add a word to the buffer...
 177  */
 178 void add_word(struct cittext *textlist, char *wordbuf)
 179 {
 180         struct cittext *ptr;
 181
 182         ptr = textlist;
 183         while (ptr->next != NULL)
 184                 ptr = ptr->next;
 185
 186         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 187                 ptr->next = (struct cittext *)
 188                     malloc(sizeof(struct cittext));
 189                 ptr = ptr->next;
 190                 ptr->next = NULL;
 191                 strcpy(ptr->text, "");
 192         }
 193
 194         strcat(ptr->text, wordbuf);
 195         strcat(ptr->text, " ");
 196 }
 197
 198
 199 /*
 200  * begin editing of an opened file pointed to by fp
 201  */
 202 void citedit(CtdlIPC *ipc, FILE * fp)
 203 {
 204         int a, prev, finished, b, last_space;
 205         int appending = 0;
 206         struct cittext *textlist = NULL;
 207         struct cittext *ptr;
 208         char wordbuf[MAXWORDBUF];
 209
 210         /* first, load the text into the buffer */
 211         fseek(fp, 0L, 0);
 212         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 213         textlist->next = NULL;
 214         strcpy(textlist->text, "");
 215
 216         strcpy(wordbuf, "");
 217         prev = (-1);
 218         while (a = getc(fp), a >= 0) {
 219                 appending = 1;
 220                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 221                         add_word(textlist, wordbuf);
 222                         strcpy(wordbuf, "");
 223                         if ((prev == 13) || (prev == 10)) {
 224                                 add_word(textlist, "\n");
 225                                 add_newline(textlist);
 226                                 add_word(textlist, "");
 227                         }
 228                 } else {
 229                         wordbuf[strlen(wordbuf) + 1] = 0;
 230                         wordbuf[strlen(wordbuf)] = a;
 231                 }
 232                 if (strlen(wordbuf) + 3 > screenwidth) {
 233                         add_word(textlist, wordbuf);
 234                         strcpy(wordbuf, "");
 235                 }
 236                 prev = a;
 237         }
 238
 239         /* get text */
 240         finished = 0;
 241         prev = (appending ? 13 : (-1));
 242         strcpy(wordbuf, "");
 243         async_ka_start();
 244         do {
 245                 a = inkey();
 246                 if (a == 10)
 247                         a = 13;
 248                 if (a == 9)
 249                         a = 32;
 250                 if (a == 127)
 251                         a = 8;
 252
 253         /******* new ***********/
 254                 if ((a > 32) && (a < 127) && (prev == 13)) {
 255                         add_word(textlist, "\n");
 256                         scr_printf(" ");
 257                 }
 258         /***********************/
 259
 260                 if ((a == 32) && (prev == 13)) {
 261                         add_word(textlist, "\n");
 262                         add_newline(textlist);
 263                 }
 264
 265                 if (a == 8) {
 266                         if (strlen(wordbuf) > 0) {
 267                                 wordbuf[strlen(wordbuf) - 1] = 0;
 268                                 scr_putc(8);
 269                                 scr_putc(32);
 270                                 scr_putc(8);
 271                         }
 272                 } else if (a == 23) {
 273                         do {
 274                                 wordbuf[strlen(wordbuf) - 1] = 0;
 275                                 scr_putc(8);
 276                                 scr_putc(32);
 277                                 scr_putc(8);
 278                         } while (strlen(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 279                 } else if (a == 13) {
 280                         scr_printf("\n");
 281                         if (strlen(wordbuf) == 0)
 282                                 finished = 1;
 283                         else {
 284                                 for (b = 0; b < strlen(wordbuf); ++b)
 285                                         if (wordbuf[b] == 32) {
 286                                                 wordbuf[b] = 0;
 287                                                 add_word(textlist,
 288                                                          wordbuf);
 289                                                 strcpy(wordbuf,
 290                                                        &wordbuf[b + 1]);
 291                                                 b = 0;
 292                                         }
 293                                 add_word(textlist, wordbuf);
 294                                 strcpy(wordbuf, "");
 295                         }
 296                 } else {
 297                         scr_putc(a);
 298                         wordbuf[strlen(wordbuf) + 1] = 0;
 299                         wordbuf[strlen(wordbuf)] = a;
 300                 }
 301                 if ((strlen(wordbuf) + 3) > screenwidth) {
 302                         last_space = (-1);
 303                         for (b = 0; b < strlen(wordbuf); ++b)
 304                                 if (wordbuf[b] == 32)
 305                                         last_space = b;
 306                         if (last_space >= 0) {
 307                                 for (b = 0; b < strlen(wordbuf); ++b)
 308                                         if (wordbuf[b] == 32) {
 309                                                 wordbuf[b] = 0;
 310                                                 add_word(textlist,
 311                                                          wordbuf);
 312                                                 strcpy(wordbuf,
 313                                                        &wordbuf[b + 1]);
 314                                                 b = 0;
 315                                         }
 316                                 for (b = 0; b < strlen(wordbuf); ++b) {
 317                                         scr_putc(8);
 318                                         scr_putc(32);
 319                                         scr_putc(8);
 320                                 }
 321                                 scr_printf("\n%s", wordbuf);
 322                         } else {
 323                                 add_word(textlist, wordbuf);
 324                                 strcpy(wordbuf, "");
 325                                 scr_printf("\n");
 326                         }
 327                 }
 328                 prev = a;
 329         } while (finished == 0);
 330         async_ka_end();
 331
 332         /* write the buffer back to disk */
 333         fseek(fp, 0L, 0);
 334         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 335                 fprintf(fp, "%s", ptr->text);
 336         }
 337         putc(10, fp);
 338         fflush(fp);
 339         ftruncate(fileno(fp), ftell(fp));
 340
 341         /* and deallocate the memory we used */
 342         while (textlist != NULL) {
 343                 ptr = textlist->next;
 344                 free(textlist);
 345                 textlist = ptr;
 346         }
 347 }
 348
 349 /* Read a message from the server
 350  */
 351 int read_message(CtdlIPC *ipc,
 352         long num,   /* message number */
 353         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 354         FILE *dest) /* Destination file, NULL for screen */
 355 {
 356         char buf[SIZ];
 357         char now[SIZ];
 358         int format_type = 0;
 359         int fr = 0;
 360         int nhdr = 0;
 361         struct ctdlipcmessage *message = NULL;
 362         int r;                          /* IPC response code */
 363         char *converted_text = NULL;
 364         char *lineptr;
 365         char *nextline;
 366         int linelen;
 367         int final_line_is_blank = 0;
 368
 369         sigcaught = 0;
 370         sttybbs(1);
 371
 372         strcpy(reply_to, NO_REPLY_TO);
 373         strcpy(reply_subject, "");
 374
 375         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 376                                 (can_do_msg4 ? 4 : 0),
 377                                 &message, buf);
 378         if (r / 100 != 1) {
 379                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 380                 ++lines_printed;
 381                 lines_printed =
 382                     checkpagin(lines_printed, pagin, screenheight);
 383                 sttybbs(0);
 384                 return (0);
 385         }
 386
 387         if (dest) {
 388                 fprintf(dest, "\n ");
 389         } else {
 390                 scr_printf("\n");
 391                 ++lines_printed;
 392                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 393                 if (pagin != 2)
 394                         scr_printf(" ");
 395         }
 396         if (pagin == 1 && !dest) {
 397                 color(BRIGHT_CYAN);
 398         }
 399
 400         /* View headers only */
 401         if (pagin == 2) {
 402                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 403                                 message->nhdr ? "yes" : "no",
 404                                 message->author, message->type,
 405                                 message->msgid);
 406                 if (strlen(message->subject)) {
 407                         pprintf("subj=%s\n", message->subject);
 408                 }
 409                 if (strlen(message->email)) {
 410                         pprintf("rfca=%s\n", message->email);
 411                 }
 412                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 413                                 message->hnod, message->room,
 414                                 message->node,
 415                                 asctime(localtime(&message->time)));
 416                 if (strlen(message->recipient)) {
 417                         pprintf("rcpt=%s\n", message->recipient);
 418                 }
 419                 if (message->attachments) {
 420                         struct parts *ptr;
 421
 422                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 423                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 424                                         ptr->name, ptr->filename, ptr->number,
 425                                         ptr->disposition, ptr->mimetype,
 426                                         ptr->length);
 427                         }
 428                 }
 429                 pprintf("\n");
 430                 sttybbs(0);
 431                 return (0);
 432         }
 433
 434         if (rc_display_message_numbers) {
 435                 if (dest) {
 436                         fprintf(dest, "[#%s] ", message->msgid);
 437                 } else {
 438                         color(DIM_WHITE);
 439                         scr_printf("[");
 440                         color(BRIGHT_WHITE);
 441                         scr_printf("#%s", message->msgid);
 442                         color(DIM_WHITE);
 443                         scr_printf("] ");
 444                 }
 445         }
 446         if (nhdr == 1 && !is_room_aide) {
 447                 if (dest) {
 448                         fprintf(dest, " ****");
 449                 } else {
 450                         scr_printf(" ****");
 451                 }
 452         } else {
 453                 fmt_date(now, sizeof now, message->time, 0);
 454                 if (dest) {
 455                         fprintf(dest, "%s from %s ", now, message->author);
 456                         if (strlen(message->email)) {
 457                                 fprintf(dest, "<%s> ", message->email);
 458                         }
 459                 } else {
 460                         color(BRIGHT_CYAN);
 461                         scr_printf("%s ", now);
 462                         color(DIM_WHITE);
 463                         scr_printf("from ");
 464                         color(BRIGHT_CYAN);
 465                         scr_printf("%s ", message->author);
 466                         if (strlen(message->email)) {
 467                                 color(DIM_WHITE);
 468                                 scr_printf("<");
 469                                 color(BRIGHT_BLUE);
 470                                 scr_printf("%s", message->email);
 471                                         color(DIM_WHITE);
 472                                 scr_printf("> ");
 473                         }
 474                 }
 475                 if (strlen(message->node)) {
 476                         if ((room_flags & QR_NETWORK)
 477                             || ((strcasecmp(message->node, serv_info.serv_nodename)
 478                              && (strcasecmp(message->node, serv_info.serv_fqdn))))) {
 479                                 if (strlen(message->email) == 0) {
 480                                         if (dest) {
 481                                                 fprintf(dest, "@%s ", message->node);
 482                                         } else {
 483                                                 color(DIM_WHITE);
 484                                                 scr_printf("@");
 485                                                 color(BRIGHT_YELLOW);
 486                                                 scr_printf("%s ", message->node);
 487                                         }
 488                                 }
 489                         }
 490                 }
 491                 if (strcasecmp(message->hnod, serv_info.serv_humannode)
 492                     && (strlen(message->hnod)) && (!strlen(message->email))) {
 493                         if (dest) {
 494                                 fprintf(dest, "(%s) ", message->hnod);
 495                         } else {
 496                                 color(DIM_WHITE);
 497                                 scr_printf("(");
 498                                 color(BRIGHT_WHITE);
 499                                 scr_printf("%s", message->hnod);
 500                                 color(DIM_WHITE);
 501                                 scr_printf(") ");
 502                         }
 503                 }
 504                 if (strcasecmp(message->room, room_name) && (strlen(message->email) == 0)) {
 505                         if (dest) {
 506                                 fprintf(dest, "in %s> ", message->room);
 507                         } else {
 508                                 color(DIM_WHITE);
 509                                 scr_printf("in ");
 510                                 color(BRIGHT_MAGENTA);
 511                                 scr_printf("%s> ", message->room);
 512                         }
 513                 }
 514                 if (strlen(message->recipient)) {
 515                         if (dest) {
 516                                 fprintf(dest, "to %s ", message->recipient);
 517                         } else {
 518                                 color(DIM_WHITE);
 519                                 scr_printf("to ");
 520                                 color(BRIGHT_CYAN);
 521                                 scr_printf("%s ", message->recipient);
 522                         }
 523                 }
 524         }
 525
 526         if (dest) {
 527                 fprintf(dest, "\n");
 528         } else {
 529                 scr_printf("\n");
 530         }
 531
 532         /* Set the reply-to address to an Internet e-mail address if possible
 533          */
 534         if (message->email != NULL) if (strlen(message->email) > 0) {
 535                 safestrncpy(reply_to, message->email, sizeof reply_to);
 536         }
 537
 538         /* But if we can't do that, set it to a Citadel address.
 539          */
 540         if (!strcmp(reply_to, NO_REPLY_TO)) {
 541                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 542                          message->author, message->node);
 543         }
 544
 545         if (!dest) {
 546                 ++lines_printed;
 547                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 548         }
 549
 550         if (message->subject != NULL) {
 551                 safestrncpy(reply_subject, message->subject,
 552                                                 sizeof reply_subject);
 553                 if (strlen(message->subject) > 0) {
 554                         if (dest) {
 555                                 fprintf(dest, "Subject: %s\n",
 556                                                         message->subject);
 557                         } else {
 558                                 color(DIM_WHITE);
 559                                 scr_printf("Subject: ");
 560                                 color(BRIGHT_CYAN);
 561                                 scr_printf("%s\n", message->subject);
 562                                 ++lines_printed;
 563                                 lines_printed = checkpagin(lines_printed,
 564                                                 pagin, screenheight);
 565                         }
 566                 }
 567         }
 568
 569         if (pagin == 1 && !dest) {
 570                 color(BRIGHT_WHITE);
 571         }
 572
 573         /******* end of header output, start of message text output *******/
 574
 575         /*
 576          * Convert HTML to plain text, formatting for the actual width
 577          * of the client screen.
 578          */
 579         if (!strcasecmp(message->content_type, "text/html")) {
 580                 converted_text = html_to_ascii(message->text, screenwidth, 0);
 581                 if (converted_text != NULL) {
 582                         free(message->text);
 583                         message->text = converted_text;
 584                         format_type = 1;
 585                 }
 586         }
 587
 588         /* Text/plain is a different type */
 589         if (!strcasecmp(message->content_type, "text/plain")) {
 590                 format_type = 1;
 591         }
 592
 593         /*
 594          * Here we go
 595          */
 596         if (format_type == 0) {
 597                 fr = fmout(screenwidth, NULL, message->text, dest,
 598                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 599         } else {
 600                 /* renderer for text/plain */
 601
 602                 lineptr = message->text;
 603
 604                 do {
 605                         nextline = strchr(lineptr, '\n');
 606                         if (nextline != NULL) {
 607                                 *nextline = 0;
 608                                 ++nextline;
 609                                 if (*nextline == 0) nextline = NULL;
 610                         }
 611
 612                         if (sigcaught == 0) {
 613                                 linelen = strlen(lineptr);
 614                                 if (lineptr[linelen-1] == '\r') {
 615                                         lineptr[--linelen] = 0;
 616                                 }
 617                                 if (dest) {
 618                                         fprintf(dest, "%s\n", lineptr);
 619                                 } else {
 620                                         scr_printf("%s\n", lineptr);
 621                                         lines_printed = lines_printed + 1 +
 622                                             (linelen / screenwidth);
 623                                         lines_printed =
 624                                             checkpagin(lines_printed, pagin,
 625                                                        screenheight);
 626                                 }
 627                         }
 628                         if (lineptr[0] == 0) final_line_is_blank = 1;
 629                         else final_line_is_blank = 0;
 630                         lineptr = nextline;
 631                 } while (nextline);
 632                 fr = sigcaught;
 633         }
 634         if (!final_line_is_blank) {
 635                 if (dest) {
 636                         fprintf(dest, "\n");
 637                 }
 638                 else {
 639                         scr_printf("\n");
 640                         ++lines_printed;
 641                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 642                 }
 643         }
 644
 645         /* Enumerate any attachments */
 646         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 647                 struct parts *ptr;
 648
 649                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 650                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 651                            || (!strcasecmp(ptr->disposition, "inline"))) {
 652                                 color(DIM_WHITE);
 653                                 scr_printf("Part ");
 654                                 color(BRIGHT_MAGENTA);
 655                                 scr_printf("%s", ptr->number);
 656                                 color(DIM_WHITE);
 657                                 scr_printf(": ");
 658                                 color(BRIGHT_CYAN);
 659                                 scr_printf("%s", ptr->filename);
 660                                 color(DIM_WHITE);
 661                                 scr_printf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 662                         }
 663                 }
 664         }
 665
 666         /* Now we're done */
 667         free(message->text);
 668         free(message);
 669
 670         if (pagin == 1 && !dest)
 671                 color(DIM_WHITE);
 672         sttybbs(0);
 673         return (fr);
 674 }
 675
 676 /*
 677  * replace string function for the built-in editor
 678  */
 679 void replace_string(char *filename, long int startpos)
 680 {
 681         char buf[512];
 682         char srch_str[128];
 683         char rplc_str[128];
 684         FILE *fp;
 685         int a;
 686         long rpos, wpos;
 687         char *ptr;
 688         int substitutions = 0;
 689         long msglen = 0L;
 690
 691         scr_printf("Enter text to be replaced:\n: ");
 692         getline(srch_str, (sizeof(srch_str)-1) );
 693         if (strlen(srch_str) == 0)
 694                 return;
 695
 696         scr_printf("Enter text to replace it with:\n: ");
 697         getline(rplc_str, (sizeof(rplc_str)-1) );
 698
 699         fp = fopen(filename, "r+");
 700         if (fp == NULL)
 701                 return;
 702
 703         wpos = startpos;
 704         fseek(fp, startpos, 0);
 705         strcpy(buf, "");
 706         while (a = getc(fp), a > 0) {
 707                 ++msglen;
 708                 buf[strlen(buf) + 1] = 0;
 709                 buf[strlen(buf)] = a;
 710                 if (strlen(buf) >= strlen(srch_str)) {
 711                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 712                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 713                                 strcpy(ptr, rplc_str);
 714                                 ++substitutions;
 715                         }
 716                 }
 717                 if (strlen(buf) > 384) {
 718                         rpos = ftell(fp);
 719                         fseek(fp, wpos, 0);
 720                         fwrite((char *) buf, 128, 1, fp);
 721                         strcpy(buf, &buf[128]);
 722                         wpos = ftell(fp);
 723                         fseek(fp, rpos, 0);
 724                 }
 725         }
 726         fseek(fp, wpos, 0);
 727         if (strlen(buf) > 0)
 728                 fwrite((char *) buf, strlen(buf), 1, fp);
 729         wpos = ftell(fp);
 730         fclose(fp);
 731         truncate(filename, wpos);
 732         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 733 }
 734
 735 /*
 736  * Function to begin composing a new message
 737  */
 738 int client_make_message(CtdlIPC *ipc,
 739                 char *filename,         /* temporary file name */
 740                 char *recipient,        /* NULL if it's not mail */
 741                 int is_anonymous,
 742                 int format_type,
 743                 int mode,
 744                 char *subject)          /* buffer to store subject line */
 745 {
 746         FILE *fp;
 747         int a, b, e_ex_code;
 748         long beg;
 749         char datestr[SIZ];
 750         char header[SIZ];
 751         char *editor_path = NULL;
 752         int cksum = 0;
 753
 754         if (mode >= 2)
 755         {
 756                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 757                         editor_path = editor_paths[mode-2];
 758                 } else if (strlen(editor_paths[0]) > 0) {
 759                         editor_path = editor_paths[0];
 760                 } else {
 761                         err_printf
 762                             ("*** No editor available, using built-in editor\n");
 763                         mode = 0;
 764                 }
 765         }
 766
 767         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 768         header[0] = 0;
 769
 770         if (room_flags & QR_ANONONLY && !recipient) {
 771                 snprintf(header, sizeof header, " ****");
 772         }
 773         else {
 774                 snprintf(header, sizeof header,
 775                         " %s from %s",
 776                         datestr,
 777                         (is_anonymous ? "[anonymous]" : fullname)
 778                         );
 779                 if (strlen(recipient) > 0) {
 780                         size_t tmp = strlen(header);
 781                         snprintf(&header[tmp], sizeof header - tmp,
 782                                 " to %s", recipient);
 783                 }
 784         }
 785         scr_printf("%s\n", header);
 786         if (subject != NULL) if (strlen(subject) > 0) {
 787                 scr_printf("Subject: %s\n", subject);
 788         }
 789
 790         beg = 0L;
 791
 792         if (mode == 1) {
 793                 scr_printf("(Press ctrl-d when finished)\n");
 794         }
 795
 796         if (mode == 0) {
 797                 fp = fopen(filename, "r");
 798                 if (fp != NULL) {
 799                         fmout(screenwidth, fp, NULL, NULL, 0, screenheight, 0, 0);
 800                         beg = ftell(fp);
 801                         fclose(fp);
 802                 } else {
 803                         fp = fopen(filename, "w");
 804                         if (fp == NULL) {
 805                                 err_printf("*** Error opening temp file!\n"
 806                                         "    %s: %s\n",
 807                                         filename, strerror(errno));
 808                         return(1);
 809                         }
 810                         fclose(fp);
 811                 }
 812         }
 813
 814 ME1:    switch (mode) {
 815
 816         case 0:
 817                 fp = fopen(filename, "r+");
 818                 if (fp == NULL) {
 819                         err_printf("*** Error opening temp file!\n"
 820                                 "    %s: %s\n",
 821                                 filename, strerror(errno));
 822                         return(1);
 823                 }
 824                 citedit(ipc, fp);
 825                 fclose(fp);
 826                 goto MECR;
 827
 828         case 1:
 829                 fp = fopen(filename, "a");
 830                 if (fp == NULL) {
 831                         err_printf("*** Error opening temp file!\n"
 832                                 "    %s: %s\n",
 833                                 filename, strerror(errno));
 834                         return(1);
 835                 }
 836                 do {
 837                         a = inkey();
 838                         if (a == 255)
 839                                 a = 32;
 840                         if (a == 13)
 841                                 a = 10;
 842                         if (a != 4) {
 843                                 putc(a, fp);
 844                                 scr_putc(a);
 845                         }
 846                         if (a == 10)
 847                                 scr_putc(10);
 848                 } while (a != 4);
 849                 fclose(fp);
 850                 break;
 851
 852         case 2:
 853         default:        /* allow 2+ modes */
 854                 e_ex_code = 1;  /* start with a failed exit code */
 855                 editor_pid = fork();
 856                 cksum = file_checksum(filename);
 857                 screen_reset();
 858                 sttybbs(SB_RESTORE);
 859                 if (editor_pid == 0) {
 860                         char tmp[SIZ];
 861
 862                         chmod(filename, 0600);
 863                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 864                         putenv(tmp);
 865                         execlp(editor_path, editor_path, filename, NULL);
 866                         exit(1);
 867                 }
 868                 if (editor_pid > 0)
 869                         do {
 870                                 e_ex_code = 0;
 871                                 b = ka_wait(&e_ex_code);
 872                         } while ((b != editor_pid) && (b >= 0));
 873                 editor_pid = (-1);
 874                 sttybbs(0);
 875                 screen_set();
 876                 break;
 877         }
 878
 879 MECR:   if (mode >= 2) {
 880                 if (file_checksum(filename) == cksum) {
 881                         err_printf("*** Aborted message.\n");
 882                         e_ex_code = 1;
 883                 }
 884                 if (e_ex_code == 0)
 885                         goto MEFIN;
 886                 goto MEABT2;
 887         }
 888
 889         b = keymenu("Entry command (? for options)",
 890                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 891                     "add s<U>bject|"
 892                     "<R>eplace string|<H>old message");
 893
 894         if (b == 'a')
 895                 goto MEABT;
 896         if (b == 'c')
 897                 goto ME1;
 898         if (b == 's')
 899                 goto MEFIN;
 900         if (b == 'p') {
 901                 scr_printf(" %s from %s", datestr, fullname);
 902                 if (strlen(recipient) > 0)
 903                         scr_printf(" to %s", recipient);
 904                 scr_printf("\n");
 905                 if (subject != NULL) if (strlen(subject) > 0) {
 906                         scr_printf("Subject: %s\n", subject);
 907                 }
 908                 fp = fopen(filename, "r");
 909                 if (fp != NULL) {
 910                         fmout(screenwidth, fp, NULL, NULL,
 911                               ((userflags & US_PAGINATOR) ? 1 : 0),
 912                               screenheight, 0, 0);
 913                         beg = ftell(fp);
 914                         fclose(fp);
 915                 }
 916                 goto MECR;
 917         }
 918         if (b == 'r') {
 919                 replace_string(filename, 0L);
 920                 goto MECR;
 921         }
 922         if (b == 'h') {
 923                 return (2);
 924         }
 925         if (b == 'u') {
 926                 if (subject != NULL) {
 927                         newprompt("Subject: ", subject, 70);
 928                 }
 929                 goto MECR;
 930         }
 931
 932 MEFIN:  return (0);
 933
 934 MEABT:  scr_printf("Are you sure? ");
 935         if (yesno() == 0) {
 936                 goto ME1;
 937         }
 938 MEABT2: unlink(filename);
 939         return (2);
 940 }
 941
 942
 943 #if 0
 944 /*
 945  * Transmit message text to the server.
 946  *
 947  * This loop also implements a "tick" counter that displays the progress, if
 948  * we're sending something that will take a long time to transmit.
 949  */
 950 void transmit_message(CtdlIPC *ipc, FILE *fp)
 951 {
 952         char buf[SIZ];
 953         int ch, a;
 954         long msglen;
 955         time_t lasttick;
 956
 957         fseek(fp, 0L, SEEK_END);
 958         msglen = ftell(fp);
 959         rewind(fp);
 960         lasttick = time(NULL);
 961         strcpy(buf, "");
 962         while (ch = getc(fp), (ch >= 0)) {
 963                 if (ch == 10) {
 964                         if (!strcmp(buf, "000"))
 965                                 strcpy(buf, ">000");
 966                         CtdlIPC_putline(ipc, buf);
 967                         strcpy(buf, "");
 968                 } else {
 969                         a = strlen(buf);
 970                         buf[a + 1] = 0;
 971                         buf[a] = ch;
 972                         if ((ch == 32) && (strlen(buf) > 200)) {
 973                                 buf[a] = 0;
 974                                 if (!strcmp(buf, "000"))
 975                                         strcpy(buf, ">000");
 976                                 CtdlIPC_putline(ipc, buf);
 977                                 strcpy(buf, "");
 978                         }
 979                         if (strlen(buf) > 250) {
 980                                 if (!strcmp(buf, "000"))
 981                                         strcpy(buf, ">000");
 982                                 CtdlIPC_putline(ipc, buf);
 983                                 strcpy(buf, "");
 984                         }
 985                 }
 986
 987                 if ((time(NULL) - lasttick) > 2L) {
 988                         scr_printf(" %3ld%% completed\r",
 989                                ((ftell(fp) * 100L) / msglen));
 990                         scr_flush();
 991                         lasttick = time(NULL);
 992                 }
 993
 994         }
 995         CtdlIPC_putline(ipc, buf);
 996         scr_printf("                \r");
 997         scr_flush();
 998 }
 999 #endif
1000
1001
1002 /*
1003  * Make sure there's room in msg_arr[] for at least one more.
1004  */
1005 void check_msg_arr_size(void) {
1006         if ((num_msgs + 1) > msg_arr_size) {
1007                 msg_arr_size += 512;
1008                 msg_arr = realloc(msg_arr,
1009                         ((sizeof(long)) * msg_arr_size) );
1010         }
1011 }
1012
1013
1014
1015 /*
1016  * entmsg()  -  edit and create a message
1017  *              returns 0 if message was saved
1018  */
1019 int entmsg(CtdlIPC *ipc,
1020                 int is_reply,   /* nonzero if this was a <R>eply command */
1021                 int c)          /* mode */
1022 {
1023         char buf[SIZ];
1024         int a, b;
1025         int need_recp = 0;
1026         int mode;
1027         long highmsg = 0L;
1028         FILE *fp;
1029         char subject[SIZ];
1030         struct ctdlipcmessage message;
1031         unsigned long *msgarr = NULL;
1032         int r;                  /* IPC response code */
1033
1034         if (c > 0)
1035                 mode = 1;
1036         else
1037                 mode = 0;
1038
1039         strcpy(subject, "");
1040
1041         /*
1042          * First, check to see if we have permission to enter a message in
1043          * this room.  The server will return an error code if we can't.
1044          */
1045         strcpy(message.recipient, "");
1046         strcpy(message.author, "");
1047         strcpy(message.subject, "");
1048         message.text = message.author;  /* point to "", changes later */
1049         message.anonymous = 0;
1050         message.type = mode;
1051         r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1052
1053         if (r / 100 != 2 && r / 10 != 57) {
1054                 scr_printf("%s\n", buf);
1055                 return (1);
1056         }
1057
1058         /* Error code 570 is special.  It means that we CAN enter a message
1059          * in this room, but a recipient needs to be specified.
1060          */
1061         need_recp = 0;
1062         if (r / 10 == 57)
1063                 need_recp = 1;
1064
1065         /* If the user is a dumbass, tell them how to type. */
1066         if ((userflags & US_EXPERT) == 0) {
1067                 formout(ipc, "entermsg");
1068         }
1069
1070         /* Handle the selection of a recipient, if necessary. */
1071         strcpy(buf, "");
1072         if (need_recp == 1) {
1073                 if (axlevel >= 2) {
1074                         if (is_reply) {
1075                                 strcpy(buf, reply_to);
1076                         } else {
1077                                 scr_printf("Enter recipient: ");
1078                                 getline(buf, (SIZ-100) );
1079                                 if (strlen(buf) == 0)
1080                                         return (1);
1081                         }
1082                 } else
1083                         strcpy(buf, "sysop");
1084         }
1085         strcpy(message.recipient, buf);
1086
1087         if (is_reply) {
1088                 if (strlen(reply_subject) > 0) {
1089                         if (!strncasecmp(reply_subject,
1090                            "Re: ", 3)) {
1091                                 strcpy(message.subject, reply_subject);
1092                         }
1093                         else {
1094                                 snprintf(message.subject,
1095                                         sizeof message.subject,
1096                                         "Re: %s",
1097                                         reply_subject);
1098                         }
1099                 }
1100         }
1101
1102         if (room_flags & QR_ANONOPT) {
1103                 scr_printf("Anonymous (Y/N)? ");
1104                 if (yesno() == 1)
1105                         message.anonymous = 1;
1106         }
1107
1108         /* If it's mail, we've got to check the validity of the recipient... */
1109         if (strlen(message.recipient) > 0) {
1110                 r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1111                 if (r / 100 != 2) {
1112                         scr_printf("%s\n", buf);
1113                         return (1);
1114                 }
1115         }
1116
1117         /* Learn the number of the newest message in in the room, so we can
1118          * tell upon saving whether someone else has posted too.
1119          */
1120         num_msgs = 0;
1121         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1122         if (r / 100 != 1) {
1123                 scr_printf("%s\n", buf);
1124         } else {
1125                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1126                         ;
1127         }
1128
1129         /* Now compose the message... */
1130         if (client_make_message(ipc, temp, message.recipient, message.anonymous, 0, c, message.subject) != 0) {
1131                 return (2);
1132         }
1133
1134         /* Reopen the temp file that was created, so we can send it */
1135         fp = fopen(temp, "r");
1136
1137         /* Yes, unlink it now, so it doesn't stick around if we crash */
1138         unlink(temp);
1139
1140         if (!fp || !(message.text = load_message_from_file(fp))) {
1141                 err_printf("*** Internal error while trying to save message!\n"
1142                         "%s: %s\n",
1143                         temp, strerror(errno));
1144                 return(errno);
1145         }
1146
1147         if (fp) fclose(fp);
1148
1149         /* Transmit message to the server */
1150         r = CtdlIPCPostMessage(ipc, 1, &message, buf);
1151         if (r / 100 != 4) {
1152                 scr_printf("%s\n", buf);
1153                 return (1);
1154         }
1155
1156         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1157
1158         if (msgarr) free(msgarr);
1159         msgarr = NULL;
1160         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1161         if (r / 100 != 1) {
1162                 scr_printf("%s\n", buf);
1163         } else {
1164                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1165                         ;
1166         }
1167
1168         /* get new highest message number in room to set lrp for goto... */
1169         maxmsgnum = msgarr[num_msgs - 1];
1170
1171         /* now see if anyone else has posted in here */
1172         b = (-1);
1173         for (a = 0; a < num_msgs; ++a) {
1174                 if (msgarr[a] > highmsg) {
1175                         ++b;
1176                 }
1177         }
1178         if (msgarr) free(msgarr);
1179         msgarr = NULL;
1180
1181         /* In the Mail> room, this algorithm always counts one message
1182          * higher than in public rooms, so we decrement it by one.
1183          */
1184         if (need_recp) {
1185                 --b;
1186         }
1187
1188         if (b == 1) {
1189                 scr_printf("*** 1 additional message has been entered "
1190                         "in this room by another user.\n");
1191         }
1192         else if (b > 1) {
1193                 scr_printf("*** %d additional messages have been entered "
1194                         "in this room by other users.\n", b);
1195         }
1196
1197         return(0);
1198 }
1199
1200 /*
1201  * Do editing on a quoted file
1202  */
1203 void process_quote(void)
1204 {
1205         FILE *qfile, *tfile;
1206         char buf[128];
1207         int line, qstart, qend;
1208
1209         /* Unlink the second temp file as soon as it's opened, so it'll get
1210          * deleted even if the program dies
1211          */
1212         qfile = fopen(temp2, "r");
1213         unlink(temp2);
1214
1215         /* Display the quotable text with line numbers added */
1216         line = 0;
1217         fgets(buf, 128, qfile);
1218         while (fgets(buf, 128, qfile) != NULL) {
1219                 scr_printf("%2d %s", ++line, buf);
1220         }
1221         scr_printf("Begin quoting at [ 1] : ");
1222         getline(buf, 3);
1223         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1224         scr_printf("  End quoting at [%d] : ", line);
1225         getline(buf, 3);
1226         qend = (buf[0] == 0) ? (line) : atoi(buf);
1227         rewind(qfile);
1228         line = 0;
1229         fgets(buf, 128, qfile);
1230         tfile = fopen(temp, "w");
1231         while (fgets(buf, 128, qfile) != NULL) {
1232                 if ((++line >= qstart) && (line <= qend))
1233                         fprintf(tfile, " >%s", buf);
1234         }
1235         fprintf(tfile, " \n");
1236         fclose(qfile);
1237         fclose(tfile);
1238         chmod(temp, 0666);
1239 }
1240
1241
1242
1243 /*
1244  * List the URL's which were embedded in the previous message
1245  */
1246 void list_urls(CtdlIPC *ipc)
1247 {
1248         int i;
1249         char cmd[SIZ];
1250
1251         if (num_urls == 0) {
1252                 scr_printf("There were no URL's in the previous message.\n\n");
1253                 return;
1254         }
1255
1256         for (i = 0; i < num_urls; ++i) {
1257                 scr_printf("%3d %s\n", i + 1, urls[i]);
1258         }
1259
1260         if ((i = num_urls) != 1)
1261                 i = intprompt("Display which one", 1, 1, num_urls);
1262
1263         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1264         system(cmd);
1265         scr_printf("\n");
1266 }
1267
1268 /*
1269  * Read the messages in the current room
1270  */
1271 void readmsgs(CtdlIPC *ipc,
1272         enum MessageList c,             /* see listing in citadel_ipc.h */
1273         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1274         int q           /* Number of msgs to read (if c==3) */
1275 ) {
1276         int a, b, e, f, g, start;
1277         int savedpos;
1278         int hold_sw = 0;
1279         char arcflag = 0;
1280         char quotflag = 0;
1281         int hold_color = 0;
1282         char prtfile[PATH_MAX];
1283         char pagin;
1284         char cmd[SIZ];
1285         char targ[ROOMNAMELEN];
1286         char filename[PATH_MAX];
1287         char save_to[PATH_MAX];
1288         void *attachment = NULL;        /* Downloaded attachment */
1289         FILE *dest = NULL;      /* Alternate destination other than screen */
1290         int r;                          /* IPC response code */
1291
1292         if (c < 0)
1293                 b = (num_msgs - 1);
1294         else
1295                 b = 0;
1296
1297         strcpy(prtfile, tmpnam(NULL));
1298
1299         if (msg_arr) {
1300                 free(msg_arr);
1301                 msg_arr = NULL;
1302         }
1303         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1304         if (r / 100 != 1) {
1305                 scr_printf("%s\n", cmd);
1306         } else {
1307                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1308                         ;
1309         }
1310
1311         if (num_msgs == 0) {    /* TODO look at this later */
1312                 if (c == LastMessages) return;
1313                 scr_printf("*** There are no ");
1314                 if (c == NewMessages) scr_printf("new ");
1315                 if (c == OldMessages) scr_printf("old ");
1316                 scr_printf("messages in this room.\n");
1317                 return;
1318         }
1319
1320         lines_printed = 0;
1321
1322         /* this loop cycles through each message... */
1323         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1324         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1325                 while (msg_arr[a] == 0L) {
1326                         a = a + rdir;
1327                         if ((a == num_msgs) || (a == (-1)))
1328                                 return;
1329                 }
1330
1331 RAGAIN:         pagin = ((arcflag == 0)
1332                          && (quotflag == 0)
1333                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1334
1335                 /* If we're doing a quote, set the screenwidth to 72 */
1336                 if (quotflag) {
1337                         hold_sw = screenwidth;
1338                         screenwidth = 72;
1339                 }
1340
1341                 /* If printing or archiving, set the screenwidth to 80 */
1342                 if (arcflag) {
1343                         hold_sw = screenwidth;
1344                         screenwidth = 80;
1345                 }
1346
1347                 /* now read the message... */
1348                 e = read_message(ipc, msg_arr[a], pagin, dest);
1349
1350                 /* ...and set the screenwidth back if we have to */
1351                 if ((quotflag) || (arcflag)) {
1352                         screenwidth = hold_sw;
1353                 }
1354 RMSGREAD:       scr_flush();
1355                 highest_msg_read = msg_arr[a];
1356                 if (quotflag) {
1357                         fclose(dest);
1358                         dest = NULL;
1359                         quotflag = 0;
1360                         enable_color = hold_color;
1361                         process_quote();
1362                 }
1363                 if (arcflag) {
1364                         fclose(dest);
1365                         dest = NULL;
1366                         arcflag = 0;
1367                         enable_color = hold_color;
1368                         f = fork();
1369                         if (f == 0) {
1370                                 freopen(prtfile, "r", stdin);
1371                                 screen_reset();
1372                                 sttybbs(SB_RESTORE);
1373                                 ka_system(printcmd);
1374                                 sttybbs(SB_NO_INTR);
1375                                 screen_set();
1376                                 unlink(prtfile);
1377                                 exit(0);
1378                         }
1379                         if (f > 0)
1380                                 do {
1381                                         g = wait(NULL);
1382                                 } while ((g != f) && (g >= 0));
1383                         scr_printf("Message printed.\n");
1384                 }
1385                 if (rc_alt_semantics && c == 1) {
1386                         char buf[SIZ];
1387
1388                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1389                 }
1390                 if (e == 3)
1391                         return;
1392                 if (((userflags & US_NOPROMPT) || (e == 2))
1393                     && (((room_flags & QR_MAILBOX) == 0)
1394                         || (rc_force_mail_prompts == 0))) {
1395                         e = 'n';
1396                 } else {
1397                         color(DIM_WHITE);
1398                         scr_printf("(");
1399                         color(BRIGHT_WHITE);
1400                         scr_printf("%d", num_msgs - a - 1);
1401                         color(DIM_WHITE);
1402                         scr_printf(") ");
1403
1404                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top m<Y> next ");
1405                         if (rc_url_cmd[0] && num_urls)
1406                                 keyopt("<U>RLview ");
1407                         keyopt("<?>help -> ");
1408
1409                         do {
1410                                 lines_printed = 2;
1411                                 e = (inkey() & 127);
1412                                 e = tolower(e);
1413 /* return key same as <N> */ if (e == 10)
1414                                         e = 'n';
1415 /* space key same as <N> */ if (e == 32)
1416                                         e = 'n';
1417 /* del/move for aides only */
1418                                     if ((!is_room_aide)
1419                                         && ((room_flags & QR_MAILBOX) ==
1420                                             0)) {
1421                                         if ((e == 'd') || (e == 'm'))
1422                                                 e = 0;
1423                                 }
1424 /* print only if available */
1425                                 if ((e == 'p') && (strlen(printcmd) == 0))
1426                                         e = 0;
1427 /* can't file if not allowed */
1428                                     if ((e == 'f')
1429                                         && (rc_allow_attachments == 0))
1430                                         e = 0;
1431 /* link only if browser avail*/
1432                                     if ((e == 'u')
1433                                         && (strlen(rc_url_cmd) == 0))
1434                                         e = 0;
1435                         } while ((e != 'a') && (e != 'n') && (e != 's')
1436                                  && (e != 'd') && (e != 'm') && (e != 'p')
1437                                  && (e != 'q') && (e != 'b') && (e != 'h')
1438                                  && (e != 'r') && (e != 'f') && (e != '?')
1439                                  && (e != 'u') && (e != 'c') && (e != 'y'));
1440                         switch (e) {
1441                         case 's':
1442                                 scr_printf("Stop");
1443                                 break;
1444                         case 'a':
1445                                 scr_printf("Again");
1446                                 break;
1447                         case 'd':
1448                                 scr_printf("Delete");
1449                                 break;
1450                         case 'm':
1451                                 scr_printf("Move");
1452                                 break;
1453                         case 'c':
1454                                 scr_printf("Copy");
1455                                 break;
1456                         case 'n':
1457                                 scr_printf("Next");
1458                                 break;
1459                         case 'p':
1460                                 scr_printf("Print");
1461                                 break;
1462                         case 'q':
1463                                 scr_printf("Quote");
1464                                 break;
1465                         case 'b':
1466                                 scr_printf("Back");
1467                                 break;
1468                         case 'h':
1469                                 scr_printf("Header");
1470                                 break;
1471                         case 'r':
1472                                 scr_printf("Reply");
1473                                 break;
1474                         case 'f':
1475                                 scr_printf("File");
1476                                 break;
1477                         case 'u':
1478                                 scr_printf("URL's");
1479                                 break;
1480                         case 'y':
1481                                 scr_printf("mY next");
1482                                 break;
1483                         case '?':
1484                                 scr_printf("? <help>");
1485                                 break;
1486                         }
1487                         if (userflags & US_DISAPPEAR)
1488                                 scr_printf("\r%79s\r", "");
1489                         else
1490                                 scr_printf("\n");
1491                         scr_flush();
1492                 }
1493                 switch (e) {
1494                 case '?':
1495                         scr_printf("Options available here:\n"
1496                                 " ?  Help (prints this message)\n"
1497                                 " S  Stop reading immediately\n"
1498                                 " A  Again (repeats last message)\n"
1499                                 " N  Next (continue with next message)\n"
1500                                 " Y  My Next (continue with next message you authored)\n"
1501                                 " B  Back (go back to previous message)\n");
1502                         if ((is_room_aide)
1503                             || (room_flags & QR_MAILBOX)) {
1504                                 scr_printf(" D  Delete this message\n"
1505                                         " M  Move message to another room\n");
1506                         }
1507                         scr_printf(" C  Copy message to another room\n");
1508                         if (strlen(printcmd) > 0)
1509                                 scr_printf(" P  Print this message\n");
1510                         scr_printf(
1511                                 " Q  Quote portions of this message for your next post\n"
1512                                 " H  Headers (display message headers only)\n");
1513                         if (is_mail)
1514                                 scr_printf(" R  Reply to this message\n");
1515                         if (rc_allow_attachments)
1516                                 scr_printf
1517                                     (" F  (save attachments to a file)\n");
1518                         if (strlen(rc_url_cmd) > 0)
1519                                 scr_printf(" U  (list URL's for display)\n");
1520                         scr_printf("\n");
1521                         goto RMSGREAD;
1522                 case 'p':
1523                         scr_flush();
1524                         dest = fopen(prtfile, "w");
1525                         arcflag = 1;
1526                         hold_color = enable_color;
1527                         enable_color = 0;
1528                         goto RAGAIN;
1529                 case 'q':
1530                         scr_flush();
1531                         dest = fopen(temp2, "w");
1532                         quotflag = 1;
1533                         hold_color = enable_color;
1534                         enable_color = 0;
1535                         goto RAGAIN;
1536                 case 's':
1537                         return;
1538                 case 'a':
1539                         goto RAGAIN;
1540                 case 'b':
1541                         a = a - (rdir * 2);
1542                         break;
1543                 case 'm':
1544                 case 'c':
1545                         newprompt("Enter target room: ",
1546                                   targ, ROOMNAMELEN - 1);
1547                         if (strlen(targ) > 0) {
1548                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1549                                                        msg_arr[a], targ, cmd);
1550                                 scr_printf("%s\n", cmd);
1551                                 if (r / 100 == 2)
1552                                         msg_arr[a] = 0L;
1553                         } else {
1554                                 goto RMSGREAD;
1555                         }
1556                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1557                                 goto RMSGREAD;  /* the logic here sucks */
1558                         break;
1559                 case 'f':
1560                         newprompt("Which section? ", filename,
1561                                   ((sizeof filename) - 1));
1562                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1563                                         filename, &attachment, progress, cmd);
1564                         if (r / 100 != 2) {
1565                                 scr_printf("%s\n", cmd);
1566                         } else {
1567                                 extract(filename, cmd, 2);
1568                                 destination_directory(save_to, filename);
1569                                 save_buffer(attachment,
1570                                                 extract_unsigned_long(cmd, 0),
1571                                                 save_to);
1572                         }
1573                         if (attachment) free(attachment);
1574                         goto RMSGREAD;
1575                 case 'd':
1576                         scr_printf("*** Delete this message? ");
1577                         if (yesno() == 1) {
1578                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1579                                 scr_printf("%s\n", cmd);
1580                                 if (r / 100 == 2)
1581                                         msg_arr[a] = 0L;
1582                         } else {
1583                                 goto RMSGREAD;
1584                         }
1585                         break;
1586                 case 'h':
1587                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1588                         goto RMSGREAD;
1589                 case 'r':
1590                         savedpos = num_msgs;
1591                         entmsg(ipc, 1, (DEFAULT_ENTRY == 46 ? 2 : 0));
1592                         num_msgs = savedpos;
1593                         goto RMSGREAD;
1594                 case 'u':
1595                         list_urls(ipc);
1596                         goto RMSGREAD;
1597             case 'y':
1598           { /* hack hack hack */
1599             /* find the next message by me, stay here if we find nothing */
1600             int finda;
1601             int lasta = a;
1602             for (finda = a; ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1603               {
1604                 /* This is repetitively dumb, but that's what computers are for.
1605                    We have to load up messages until we find one by us */
1606                 char buf[SIZ];
1607                 int founda = 0;
1608
1609                 snprintf(buf, sizeof buf, "MSG0 %ld|1", msg_arr[finda]); /* read the header so we can get 'from=' */
1610                 CtdlIPC_putline(ipc, buf);
1611                 CtdlIPC_getline(ipc, buf);
1612                 while (CtdlIPC_getline(ipc, buf), strcmp(buf, "000"))
1613                   {
1614                         if ((!strncasecmp(buf, "from=", 5)) && (finda != a)) /* Skip current message. */
1615                       {
1616                         if (strcasecmp(buf+5, fullname) == 0)
1617                           {
1618                             a = lasta; /* meesa current */
1619                             founda = 1;
1620                           }
1621                           }
1622                   }
1623                     // we are now in synch with the server
1624                 if (founda)
1625                   break; /* for */
1626                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1627               } /* for */
1628           } /* case 'y' */
1629       } /* switch */
1630         }                       /* end for loop */
1631 }                               /* end read routine */
1632
1633
1634
1635
1636 /*
1637  * View and edit a system message
1638  */
1639 void edit_system_message(CtdlIPC *ipc, char *which_message)
1640 {
1641         char desc[SIZ];
1642         char read_cmd[SIZ];
1643         char write_cmd[SIZ];
1644
1645         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1646         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1647         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1648         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1649 }
1650
1651
1652
1653
1654 /*
1655  * Verify the message base
1656  */
1657 void check_message_base(CtdlIPC *ipc)
1658 {
1659         char buf[SIZ];
1660         char *transcript = NULL;
1661         int r;          /* IPC response code */
1662
1663         scr_printf
1664             ("Please read the documentation before running this command.\n"
1665             "Having done so, do you still want to check the message base? ");
1666         if (yesno() == 0)
1667                 return;
1668
1669         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1670         if (r / 100 != 1) {
1671                 scr_printf("%s\n", buf);
1672                 return;
1673         }
1674
1675         while (transcript && strlen(transcript)) {
1676                 lines_printed = 1;
1677                 extract_token(buf, transcript, 0, '\n');
1678                 remove_token(transcript, 0, '\n');
1679                 pprintf("%s\n", buf);
1680         }
1681         if (transcript) free(transcript);
1682         return;
1683 }
1684
1685
1686 /*
1687  * Loads the contents of a file into memory.  Caller must free the allocated
1688  * memory.
1689  */
1690 char *load_message_from_file(FILE *src)
1691 {
1692         size_t i;
1693         size_t got = 0;
1694         char *dest = NULL;
1695
1696         fseek(src, 0, SEEK_END);
1697         i = ftell(src);
1698         rewind(src);
1699
1700         dest = (char *)calloc(1, i + 1);
1701         if (!dest)
1702                 return NULL;
1703
1704         while (got < i) {
1705                 size_t g;
1706
1707                 g = fread(dest + got, 1, i - got, src);
1708                 got += g;
1709                 if (g < i - got) {
1710                         /* Interrupted system call, keep going */
1711                         if (errno == EINTR)
1712                                 continue;
1713                         /* At this point we have either EOF or error */
1714                         i = got;
1715                         break;
1716                 }
1717                 dest[i] = 0;
1718         }
1719
1720         return dest;
1721 }