citadel/msgbase.c

   1 /*
   2  * $Id$
   3  *
   4  * Implements the message store.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13
  14 #if TIME_WITH_SYS_TIME
  15 # include <sys/time.h>
  16 # include <time.h>
  17 #else
  18 # if HAVE_SYS_TIME_H
  19 #  include <sys/time.h>
  20 # else
  21 #  include <time.h>
  22 # endif
  23 #endif
  24
  25
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <limits.h>
  29 #include <errno.h>
  30 #include <stdarg.h>
  31 #include <sys/stat.h>
  32 #include <sys/types.h>
  33 #include <regex.h>
  34 #include <libcitadel.h>
  35 #include "citadel.h"
  36 #include "server.h"
  37 #include "serv_extensions.h"
  38 #include "database.h"
  39 #include "msgbase.h"
  40 #include "support.h"
  41 #include "sysdep_decls.h"
  42 #include "citserver.h"
  43 #include "room_ops.h"
  44 #include "user_ops.h"
  45 #include "file_ops.h"
  46 #include "config.h"
  47 #include "control.h"
  48 #include "genstamp.h"
  49 #include "internet_addressing.h"
  50 #include "euidindex.h"
  51 #include "journaling.h"
  52 #include "citadel_dirs.h"
  53 #include "clientsocket.h"
  54 #include "serv_network.h"
  55 #include "threads.h"
  56
  57 long config_msgnum;
  58 struct addresses_to_be_filed *atbf = NULL;
  59
  60 /* This temp file holds the queue of operations for AdjRefCount() */
  61 static FILE *arcfp = NULL;
  62
  63 /*
  64  * This really belongs in serv_network.c, but I don't know how to export
  65  * symbols between modules.
  66  */
  67 struct FilterList *filterlist = NULL;
  68
  69
  70 /*
  71  * These are the four-character field headers we use when outputting
  72  * messages in Citadel format (as opposed to RFC822 format).
  73  */
  74 char *msgkeys[] = {
  75         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  76         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  77         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  78         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  79         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  80         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  81         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  82         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  83         NULL,
  84         "from",
  85         NULL, NULL, NULL,
  86         "exti",
  87         "rfca",
  88         NULL,
  89         "hnod",
  90         "msgn",
  91         "jrnl",
  92         NULL, NULL,
  93         "text",
  94         "node",
  95         "room",
  96         "path",
  97         NULL,
  98         "rcpt",
  99         "spec",
 100         "time",
 101         "subj",
 102         NULL,
 103         "wefw",
 104         NULL,
 105         "cccc",
 106         NULL
 107 };
 108
 109 /*
 110  * This function is self explanatory.
 111  * (What can I say, I'm in a weird mood today...)
 112  */
 113 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
 114 {
 115         int i;
 116
 117         for (i = 0; i < strlen(name); ++i) {
 118                 if (name[i] == '@') {
 119                         while (isspace(name[i - 1]) && i > 0) {
 120                                 strcpy(&name[i - 1], &name[i]);
 121                                 --i;
 122                         }
 123                         while (isspace(name[i + 1])) {
 124                                 strcpy(&name[i + 1], &name[i + 2]);
 125                         }
 126                 }
 127         }
 128 }
 129
 130
 131 /*
 132  * Aliasing for network mail.
 133  * (Error messages have been commented out, because this is a server.)
 134  */
 135 int alias(char *name)
 136 {                               /* process alias and routing info for mail */
 137         FILE *fp;
 138         int a, i;
 139         char aaa[SIZ], bbb[SIZ];
 140         char *ignetcfg = NULL;
 141         char *ignetmap = NULL;
 142         int at = 0;
 143         char node[64];
 144         char testnode[64];
 145         char buf[SIZ];
 146
 147         char original_name[256];
 148         safestrncpy(original_name, name, sizeof original_name);
 149
 150         striplt(name);
 151         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 152         stripallbut(name, '<', '>');
 153
 154         fp = fopen(file_mail_aliases, "r");
 155         if (fp == NULL) {
 156                 fp = fopen("/dev/null", "r");
 157         }
 158         if (fp == NULL) {
 159                 return (MES_ERROR);
 160         }
 161         strcpy(aaa, "");
 162         strcpy(bbb, "");
 163         while (fgets(aaa, sizeof aaa, fp) != NULL) {
 164                 while (isspace(name[0]))
 165                         strcpy(name, &name[1]);
 166                 aaa[strlen(aaa) - 1] = 0;
 167                 strcpy(bbb, "");
 168                 for (a = 0; a < strlen(aaa); ++a) {
 169                         if (aaa[a] == ',') {
 170                                 strcpy(bbb, &aaa[a + 1]);
 171                                 aaa[a] = 0;
 172                         }
 173                 }
 174                 if (!strcasecmp(name, aaa))
 175                         strcpy(name, bbb);
 176         }
 177         fclose(fp);
 178
 179         /* Hit the Global Address Book */
 180         if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
 181                 strcpy(name, aaa);
 182         }
 183
 184         if (strcasecmp(original_name, name)) {
 185                 CtdlLogPrintf(CTDL_INFO, "%s is being forwarded to %s\n", original_name, name);
 186         }
 187
 188         /* Change "user @ xxx" to "user" if xxx is an alias for this host */
 189         for (a=0; a<strlen(name); ++a) {
 190                 if (name[a] == '@') {
 191                         if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
 192                                 name[a] = 0;
 193                                 CtdlLogPrintf(CTDL_INFO, "Changed to <%s>\n", name);
 194                         }
 195                 }
 196         }
 197
 198         /* determine local or remote type, see citadel.h */
 199         at = haschar(name, '@');
 200         if (at == 0) return(MES_LOCAL);         /* no @'s - local address */
 201         if (at > 1) return(MES_ERROR);          /* >1 @'s - invalid address */
 202         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 203
 204         /* figure out the delivery mode */
 205         extract_token(node, name, 1, '@', sizeof node);
 206
 207         /* If there are one or more dots in the nodename, we assume that it
 208          * is an FQDN and will attempt SMTP delivery to the Internet.
 209          */
 210         if (haschar(node, '.') > 0) {
 211                 return(MES_INTERNET);
 212         }
 213
 214         /* Otherwise we look in the IGnet maps for a valid Citadel node.
 215          * Try directly-connected nodes first...
 216          */
 217         ignetcfg = CtdlGetSysConfig(IGNETCFG);
 218         for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
 219                 extract_token(buf, ignetcfg, i, '\n', sizeof buf);
 220                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 221                 if (!strcasecmp(node, testnode)) {
 222                         free(ignetcfg);
 223                         return(MES_IGNET);
 224                 }
 225         }
 226         free(ignetcfg);
 227
 228         /*
 229          * Then try nodes that are two or more hops away.
 230          */
 231         ignetmap = CtdlGetSysConfig(IGNETMAP);
 232         for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
 233                 extract_token(buf, ignetmap, i, '\n', sizeof buf);
 234                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 235                 if (!strcasecmp(node, testnode)) {
 236                         free(ignetmap);
 237                         return(MES_IGNET);
 238                 }
 239         }
 240         free(ignetmap);
 241
 242         /* If we get to this point it's an invalid node name */
 243         return (MES_ERROR);
 244 }
 245
 246
 247 /*
 248  * Back end for the MSGS command: output message number only.
 249  */
 250 void simple_listing(long msgnum, void *userdata)
 251 {
 252         cprintf("%ld\n", msgnum);
 253 }
 254
 255
 256
 257 /*
 258  * Back end for the MSGS command: output header summary.
 259  */
 260 void headers_listing(long msgnum, void *userdata)
 261 {
 262         struct CtdlMessage *msg;
 263
 264         msg = CtdlFetchMessage(msgnum, 0);
 265         if (msg == NULL) {
 266                 cprintf("%ld|0|||||\n", msgnum);
 267                 return;
 268         }
 269
 270         cprintf("%ld|%s|%s|%s|%s|%s|\n",
 271                 msgnum,
 272                 (msg->cm_fields['T'] ? msg->cm_fields['T'] : "0"),
 273                 (msg->cm_fields['A'] ? msg->cm_fields['A'] : ""),
 274                 (msg->cm_fields['N'] ? msg->cm_fields['N'] : ""),
 275                 (msg->cm_fields['F'] ? msg->cm_fields['F'] : ""),
 276                 (msg->cm_fields['U'] ? msg->cm_fields['U'] : "")
 277         );
 278         CtdlFreeMessage(msg);
 279 }
 280
 281
 282
 283 /* Determine if a given message matches the fields in a message template.
 284  * Return 0 for a successful match.
 285  */
 286 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
 287         int i;
 288
 289         /* If there aren't any fields in the template, all messages will
 290          * match.
 291          */
 292         if (template == NULL) return(0);
 293
 294         /* Null messages are bogus. */
 295         if (msg == NULL) return(1);
 296
 297         for (i='A'; i<='Z'; ++i) {
 298                 if (template->cm_fields[i] != NULL) {
 299                         if (msg->cm_fields[i] == NULL) {
 300                                 return 1;
 301                         }
 302                         if (strcasecmp(msg->cm_fields[i],
 303                                 template->cm_fields[i])) return 1;
 304                 }
 305         }
 306
 307         /* All compares succeeded: we have a match! */
 308         return 0;
 309 }
 310
 311
 312
 313 /*
 314  * Retrieve the "seen" message list for the current room.
 315  */
 316 void CtdlGetSeen(char *buf, int which_set) {
 317         struct visit vbuf;
 318
 319         /* Learn about the user and room in question */
 320         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 321
 322         if (which_set == ctdlsetseen_seen)
 323                 safestrncpy(buf, vbuf.v_seen, SIZ);
 324         if (which_set == ctdlsetseen_answered)
 325                 safestrncpy(buf, vbuf.v_answered, SIZ);
 326 }
 327
 328
 329
 330 /*
 331  * Manipulate the "seen msgs" string (or other message set strings)
 332  */
 333 void CtdlSetSeen(long *target_msgnums, int num_target_msgnums,
 334                 int target_setting, int which_set,
 335                 struct ctdluser *which_user, struct ctdlroom *which_room) {
 336         struct cdbdata *cdbfr;
 337         int i, j, k;
 338         int is_seen = 0;
 339         int was_seen = 0;
 340         long lo = (-1L);
 341         long hi = (-1L);
 342         long t = (-1L);
 343         int trimming = 0;
 344         struct visit vbuf;
 345         long *msglist;
 346         int num_msgs = 0;
 347         char vset[SIZ];
 348         char *is_set;   /* actually an array of booleans */
 349         int num_sets;
 350         int s;
 351         char setstr[SIZ], lostr[SIZ], histr[SIZ];
 352         size_t tmp;
 353
 354         /* Don't bother doing *anything* if we were passed a list of zero messages */
 355         if (num_target_msgnums < 1) {
 356                 return;
 357         }
 358
 359         CtdlLogPrintf(CTDL_DEBUG, "CtdlSetSeen(%d msgs starting with %ld, %d, %d)\n",
 360                 num_target_msgnums, target_msgnums[0],
 361                 target_setting, which_set);
 362
 363         /* Learn about the user and room in question */
 364         CtdlGetRelationship(&vbuf,
 365                 ((which_user != NULL) ? which_user : &CC->user),
 366                 ((which_room != NULL) ? which_room : &CC->room)
 367         );
 368
 369         /* Load the message list */
 370         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 371         if (cdbfr != NULL) {
 372                 msglist = (long *) cdbfr->ptr;
 373                 cdbfr->ptr = NULL;      /* CtdlSetSeen() now owns this memory */
 374                 num_msgs = cdbfr->len / sizeof(long);
 375                 cdb_free(cdbfr);
 376         } else {
 377                 return; /* No messages at all?  No further action. */
 378         }
 379
 380         is_set = malloc(num_msgs * sizeof(char));
 381         memset(is_set, 0, (num_msgs * sizeof(char)) );
 382
 383         /* Decide which message set we're manipulating */
 384         switch(which_set) {
 385                 case ctdlsetseen_seen:
 386                         safestrncpy(vset, vbuf.v_seen, sizeof vset);
 387                         break;
 388                 case ctdlsetseen_answered:
 389                         safestrncpy(vset, vbuf.v_answered, sizeof vset);
 390                         break;
 391         }
 392
 393         /* CtdlLogPrintf(CTDL_DEBUG, "before optimize: %s\n", vset); */
 394
 395         /* Translate the existing sequence set into an array of booleans */
 396         num_sets = num_tokens(vset, ',');
 397         for (s=0; s<num_sets; ++s) {
 398                 extract_token(setstr, vset, s, ',', sizeof setstr);
 399
 400                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 401                 if (num_tokens(setstr, ':') >= 2) {
 402                         extract_token(histr, setstr, 1, ':', sizeof histr);
 403                         if (!strcmp(histr, "*")) {
 404                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
 405                         }
 406                 }
 407                 else {
 408                         strcpy(histr, lostr);
 409                 }
 410                 lo = atol(lostr);
 411                 hi = atol(histr);
 412
 413                 for (i = 0; i < num_msgs; ++i) {
 414                         if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
 415                                 is_set[i] = 1;
 416                         }
 417                 }
 418         }
 419
 420         /* Now translate the array of booleans back into a sequence set */
 421         strcpy(vset, "");
 422         lo = (-1L);
 423         hi = (-1L);
 424
 425         for (i=0; i<num_msgs; ++i) {
 426
 427                 is_seen = is_set[i];    /* Default to existing setting */
 428
 429                 for (k=0; k<num_target_msgnums; ++k) {
 430                         if (msglist[i] == target_msgnums[k]) {
 431                                 is_seen = target_setting;
 432                         }
 433                 }
 434
 435                 if (is_seen) {
 436                         if (lo < 0L) lo = msglist[i];
 437                         hi = msglist[i];
 438                 }
 439
 440                 if (  ((is_seen == 0) && (was_seen == 1))
 441                    || ((is_seen == 1) && (i == num_msgs-1)) ) {
 442
 443                         /* begin trim-o-matic code */
 444                         j=9;
 445                         trimming = 0;
 446                         while ( (strlen(vset) + 20) > sizeof vset) {
 447                                 remove_token(vset, 0, ',');
 448                                 trimming = 1;
 449                                 if (j--) break; /* loop no more than 9 times */
 450                         }
 451                         if ( (trimming) && (which_set == ctdlsetseen_seen) ) {
 452                                 t = atol(vset);
 453                                 if (t<2) t=2;
 454                                 --t;
 455                                 snprintf(lostr, sizeof lostr,
 456                                         "1:%ld,%s", t, vset);
 457                                 safestrncpy(vset, lostr, sizeof vset);
 458                         }
 459                         /* end trim-o-matic code */
 460
 461                         tmp = strlen(vset);
 462                         if (tmp > 0) {
 463                                 strcat(vset, ",");
 464                                 ++tmp;
 465                         }
 466                         if (lo == hi) {
 467                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
 468                                          "%ld", lo);
 469                         }
 470                         else {
 471                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
 472                                          "%ld:%ld", lo, hi);
 473                         }
 474                         lo = (-1L);
 475                         hi = (-1L);
 476                 }
 477                 was_seen = is_seen;
 478         }
 479
 480         /* Decide which message set we're manipulating */
 481         switch (which_set) {
 482                 case ctdlsetseen_seen:
 483                         safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
 484                         break;
 485                 case ctdlsetseen_answered:
 486                         safestrncpy(vbuf.v_answered, vset,
 487                                                 sizeof vbuf.v_answered);
 488                         break;
 489         }
 490         free(is_set);
 491
 492         /* CtdlLogPrintf(CTDL_DEBUG, " after optimize: %s\n", vset); */
 493         free(msglist);
 494         CtdlSetRelationship(&vbuf,
 495                 ((which_user != NULL) ? which_user : &CC->user),
 496                 ((which_room != NULL) ? which_room : &CC->room)
 497         );
 498 }
 499
 500
 501 /*
 502  * API function to perform an operation for each qualifying message in the
 503  * current room.  (Returns the number of messages processed.)
 504  */
 505 int CtdlForEachMessage(int mode, long ref, char *search_string,
 506                         char *content_type,
 507                         struct CtdlMessage *compare,
 508                         void (*CallBack) (long, void *),
 509                         void *userdata)
 510 {
 511
 512         int a, i, j;
 513         struct visit vbuf;
 514         struct cdbdata *cdbfr;
 515         long *msglist = NULL;
 516         int num_msgs = 0;
 517         int num_processed = 0;
 518         long thismsg;
 519         struct MetaData smi;
 520         struct CtdlMessage *msg = NULL;
 521         int is_seen = 0;
 522         long lastold = 0L;
 523         int printed_lastold = 0;
 524         int num_search_msgs = 0;
 525         long *search_msgs = NULL;
 526         regex_t re;
 527         int need_to_free_re = 0;
 528         regmatch_t pm;
 529
 530         if (content_type) if (!IsEmptyStr(content_type)) {
 531                 regcomp(&re, content_type, 0);
 532                 need_to_free_re = 1;
 533         }
 534
 535         /* Learn about the user and room in question */
 536         getuser(&CC->user, CC->curr_user);
 537         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 538
 539         /* Load the message list */
 540         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 541         if (cdbfr != NULL) {
 542                 msglist = (long *) cdbfr->ptr;
 543                 num_msgs = cdbfr->len / sizeof(long);
 544         } else {
 545                 if (need_to_free_re) regfree(&re);
 546                 return 0;       /* No messages at all?  No further action. */
 547         }
 548
 549
 550         /*
 551          * Now begin the traversal.
 552          */
 553         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
 554
 555                 /* If the caller is looking for a specific MIME type, filter
 556                  * out all messages which are not of the type requested.
 557                  */
 558                 if (content_type != NULL) if (!IsEmptyStr(content_type)) {
 559
 560                         /* This call to GetMetaData() sits inside this loop
 561                          * so that we only do the extra database read per msg
 562                          * if we need to.  Doing the extra read all the time
 563                          * really kills the server.  If we ever need to use
 564                          * metadata for another search criterion, we need to
 565                          * move the read somewhere else -- but still be smart
 566                          * enough to only do the read if the caller has
 567                          * specified something that will need it.
 568                          */
 569                         GetMetaData(&smi, msglist[a]);
 570
 571                         /* if (strcasecmp(smi.meta_content_type, content_type)) { old non-regex way */
 572                         if (regexec(&re, smi.meta_content_type, 1, &pm, 0) != 0) {
 573                                 msglist[a] = 0L;
 574                         }
 575                 }
 576         }
 577
 578         num_msgs = sort_msglist(msglist, num_msgs);
 579
 580         /* If a template was supplied, filter out the messages which
 581          * don't match.  (This could induce some delays!)
 582          */
 583         if (num_msgs > 0) {
 584                 if (compare != NULL) {
 585                         for (a = 0; a < num_msgs; ++a) {
 586                                 msg = CtdlFetchMessage(msglist[a], 1);
 587                                 if (msg != NULL) {
 588                                         if (CtdlMsgCmp(msg, compare)) {
 589                                                 msglist[a] = 0L;
 590                                         }
 591                                         CtdlFreeMessage(msg);
 592                                 }
 593                         }
 594                 }
 595         }
 596
 597         /* If a search string was specified, get a message list from
 598          * the full text index and remove messages which aren't on both
 599          * lists.
 600          *
 601          * How this works:
 602          * Since the lists are sorted and strictly ascending, and the
 603          * output list is guaranteed to be shorter than or equal to the
 604          * input list, we overwrite the bottom of the input list.  This
 605          * eliminates the need to memmove big chunks of the list over and
 606          * over again.
 607          */
 608         if ( (num_msgs > 0) && (mode == MSGS_SEARCH) && (search_string) ) {
 609
 610                 /* Call search module via hook mechanism.
 611                  * NULL means use any search function available.
 612                  * otherwise replace with a char * to name of search routine
 613                  */
 614                 CtdlModuleDoSearch(&num_search_msgs, &search_msgs, search_string, "fulltext");
 615
 616                 if (num_search_msgs > 0) {
 617
 618                         int orig_num_msgs;
 619
 620                         orig_num_msgs = num_msgs;
 621                         num_msgs = 0;
 622                         for (i=0; i<orig_num_msgs; ++i) {
 623                                 for (j=0; j<num_search_msgs; ++j) {
 624                                         if (msglist[i] == search_msgs[j]) {
 625                                                 msglist[num_msgs++] = msglist[i];
 626                                         }
 627                                 }
 628                         }
 629                 }
 630                 else {
 631                         num_msgs = 0;   /* No messages qualify */
 632                 }
 633                 if (search_msgs != NULL) free(search_msgs);
 634
 635                 /* Now that we've purged messages which don't contain the search
 636                  * string, treat a MSGS_SEARCH just like a MSGS_ALL from this
 637                  * point on.
 638                  */
 639                 mode = MSGS_ALL;
 640         }
 641
 642         /*
 643          * Now iterate through the message list, according to the
 644          * criteria supplied by the caller.
 645          */
 646         if (num_msgs > 0)
 647                 for (a = 0; a < num_msgs; ++a) {
 648                         thismsg = msglist[a];
 649                         if (mode == MSGS_ALL) {
 650                                 is_seen = 0;
 651                         }
 652                         else {
 653                                 is_seen = is_msg_in_sequence_set(
 654                                                         vbuf.v_seen, thismsg);
 655                                 if (is_seen) lastold = thismsg;
 656                         }
 657                         if ((thismsg > 0L)
 658                             && (
 659
 660                                        (mode == MSGS_ALL)
 661                                        || ((mode == MSGS_OLD) && (is_seen))
 662                                        || ((mode == MSGS_NEW) && (!is_seen))
 663                                        || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
 664                                    || ((mode == MSGS_FIRST) && (a < ref))
 665                                 || ((mode == MSGS_GT) && (thismsg > ref))
 666                                 || ((mode == MSGS_EQ) && (thismsg == ref))
 667                             )
 668                             ) {
 669                                 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
 670                                         if (CallBack)
 671                                                 CallBack(lastold, userdata);
 672                                         printed_lastold = 1;
 673                                         ++num_processed;
 674                                 }
 675                                 if (CallBack) CallBack(thismsg, userdata);
 676                                 ++num_processed;
 677                         }
 678                 }
 679         cdb_free(cdbfr);        /* Clean up */
 680         if (need_to_free_re) regfree(&re);
 681         return num_processed;
 682 }
 683
 684
 685
 686 /*
 687  * cmd_msgs()  -  get list of message #'s in this room
 688  *              implements the MSGS server command using CtdlForEachMessage()
 689  */
 690 void cmd_msgs(char *cmdbuf)
 691 {
 692         int mode = 0;
 693         char which[16];
 694         char buf[256];
 695         char tfield[256];
 696         char tvalue[256];
 697         int cm_ref = 0;
 698         int i;
 699         int with_template = 0;
 700         struct CtdlMessage *template = NULL;
 701         int with_headers = 0;
 702         char search_string[1024];
 703
 704         extract_token(which, cmdbuf, 0, '|', sizeof which);
 705         cm_ref = extract_int(cmdbuf, 1);
 706         extract_token(search_string, cmdbuf, 1, '|', sizeof search_string);
 707         with_template = extract_int(cmdbuf, 2);
 708         with_headers = extract_int(cmdbuf, 3);
 709
 710         strcat(which, "   ");
 711         if (!strncasecmp(which, "OLD", 3))
 712                 mode = MSGS_OLD;
 713         else if (!strncasecmp(which, "NEW", 3))
 714                 mode = MSGS_NEW;
 715         else if (!strncasecmp(which, "FIRST", 5))
 716                 mode = MSGS_FIRST;
 717         else if (!strncasecmp(which, "LAST", 4))
 718                 mode = MSGS_LAST;
 719         else if (!strncasecmp(which, "GT", 2))
 720                 mode = MSGS_GT;
 721         else if (!strncasecmp(which, "SEARCH", 6))
 722                 mode = MSGS_SEARCH;
 723         else
 724                 mode = MSGS_ALL;
 725
 726         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
 727                 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
 728                 return;
 729         }
 730
 731         if ( (mode == MSGS_SEARCH) && (!config.c_enable_fulltext) ) {
 732                 cprintf("%d Full text index is not enabled on this server.\n",
 733                         ERROR + CMD_NOT_SUPPORTED);
 734                 return;
 735         }
 736
 737         if (with_template) {
 738                 unbuffer_output();
 739                 cprintf("%d Send template then receive message list\n",
 740                         START_CHAT_MODE);
 741                 template = (struct CtdlMessage *)
 742                         malloc(sizeof(struct CtdlMessage));
 743                 memset(template, 0, sizeof(struct CtdlMessage));
 744                 template->cm_magic = CTDLMESSAGE_MAGIC;
 745                 template->cm_anon_type = MES_NORMAL;
 746
 747                 while(client_getln(buf, sizeof buf) >= 0 && strcmp(buf,"000")) {
 748                         extract_token(tfield, buf, 0, '|', sizeof tfield);
 749                         extract_token(tvalue, buf, 1, '|', sizeof tvalue);
 750                         for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
 751                                 if (!strcasecmp(tfield, msgkeys[i])) {
 752                                         template->cm_fields[i] =
 753                                                 strdup(tvalue);
 754                                 }
 755                         }
 756                 }
 757                 buffer_output();
 758         }
 759         else {
 760                 cprintf("%d  \n", LISTING_FOLLOWS);
 761         }
 762
 763         CtdlForEachMessage(mode,
 764                         ( (mode == MSGS_SEARCH) ? 0 : cm_ref ),
 765                         ( (mode == MSGS_SEARCH) ? search_string : NULL ),
 766                         NULL,
 767                         template,
 768                         (with_headers ? headers_listing : simple_listing),
 769                         NULL
 770         );
 771         if (template != NULL) CtdlFreeMessage(template);
 772         cprintf("000\n");
 773 }
 774
 775
 776
 777
 778 /*
 779  * help_subst()  -  support routine for help file viewer
 780  */
 781 void help_subst(char *strbuf, char *source, char *dest)
 782 {
 783         char workbuf[SIZ];
 784         int p;
 785
 786         while (p = pattern2(strbuf, source), (p >= 0)) {
 787                 strcpy(workbuf, &strbuf[p + strlen(source)]);
 788                 strcpy(&strbuf[p], dest);
 789                 strcat(strbuf, workbuf);
 790         }
 791 }
 792
 793
 794 void do_help_subst(char *buffer)
 795 {
 796         char buf2[16];
 797
 798         help_subst(buffer, "^nodename", config.c_nodename);
 799         help_subst(buffer, "^humannode", config.c_humannode);
 800         help_subst(buffer, "^fqdn", config.c_fqdn);
 801         help_subst(buffer, "^username", CC->user.fullname);
 802         snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
 803         help_subst(buffer, "^usernum", buf2);
 804         help_subst(buffer, "^sysadm", config.c_sysadm);
 805         help_subst(buffer, "^variantname", CITADEL);
 806         snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
 807         help_subst(buffer, "^maxsessions", buf2);
 808         help_subst(buffer, "^bbsdir", ctdl_message_dir);
 809 }
 810
 811
 812
 813 /*
 814  * memfmout()  -  Citadel text formatter and paginator.
 815  *           Although the original purpose of this routine was to format
 816  *           text to the reader's screen width, all we're really using it
 817  *           for here is to format text out to 80 columns before sending it
 818  *           to the client.  The client software may reformat it again.
 819  */
 820 void memfmout(
 821         char *mptr,             /* where are we going to get our text from? */
 822         char subst,             /* nonzero if we should do substitutions */
 823         char *nl)               /* string to terminate lines with */
 824 {
 825         int a, b, c;
 826         int real = 0;
 827         int old = 0;
 828         cit_uint8_t ch;
 829         char aaa[140];
 830         char buffer[SIZ];
 831         static int width = 80;
 832
 833         strcpy(aaa, "");
 834         old = 255;
 835         strcpy(buffer, "");
 836         c = 1;                  /* c is the current pos */
 837
 838         do {
 839                 if (subst) {
 840                         while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
 841                                 ch = *mptr++;
 842                                 buffer[strlen(buffer) + 1] = 0;
 843                                 buffer[strlen(buffer)] = ch;
 844                         }
 845
 846                         if (buffer[0] == '^')
 847                                 do_help_subst(buffer);
 848
 849                         buffer[strlen(buffer) + 1] = 0;
 850                         a = buffer[0];
 851                         strcpy(buffer, &buffer[1]);
 852                 } else {
 853                         ch = *mptr++;
 854                 }
 855
 856                 old = real;
 857                 real = ch;
 858
 859                 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10)) {
 860                         ch = 32;
 861                 }
 862                 if (((old == 13) || (old == 10)) && (isspace(real))) {
 863                         cprintf("%s", nl);
 864                         c = 1;
 865                 }
 866                 if (ch > 32) {
 867                         if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
 868                                 cprintf("%s%s", nl, aaa);
 869                                 c = strlen(aaa);
 870                                 aaa[0] = 0;
 871                         }
 872                         b = strlen(aaa);
 873                         aaa[b] = ch;
 874                         aaa[b + 1] = 0;
 875                 }
 876                 if (ch == 32) {
 877                         if ((strlen(aaa) + c) > (width - 5)) {
 878                                 cprintf("%s", nl);
 879                                 c = 1;
 880                         }
 881                         cprintf("%s ", aaa);
 882                         ++c;
 883                         c = c + strlen(aaa);
 884                         strcpy(aaa, "");
 885                 }
 886                 if ((ch == 13) || (ch == 10)) {
 887                         cprintf("%s%s", aaa, nl);
 888                         c = 1;
 889                         strcpy(aaa, "");
 890                 }
 891
 892         } while (ch > 0);
 893
 894         cprintf("%s%s", aaa, nl);
 895 }
 896
 897
 898
 899 /*
 900  * Callback function for mime parser that simply lists the part
 901  */
 902 void list_this_part(char *name, char *filename, char *partnum, char *disp,
 903                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 904                     void *cbuserdata)
 905 {
 906         struct ma_info *ma;
 907
 908         ma = (struct ma_info *)cbuserdata;
 909         if (ma->is_ma == 0) {
 910                 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
 911                         name, filename, partnum, disp, cbtype, (long)length);
 912         }
 913 }
 914
 915 /*
 916  * Callback function for multipart prefix
 917  */
 918 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
 919                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 920                     void *cbuserdata)
 921 {
 922         struct ma_info *ma;
 923
 924         ma = (struct ma_info *)cbuserdata;
 925         if (!strcasecmp(cbtype, "multipart/alternative")) {
 926                 ++ma->is_ma;
 927         }
 928
 929         if (ma->is_ma == 0) {
 930                 cprintf("pref=%s|%s\n", partnum, cbtype);
 931         }
 932 }
 933
 934 /*
 935  * Callback function for multipart sufffix
 936  */
 937 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
 938                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 939                     void *cbuserdata)
 940 {
 941         struct ma_info *ma;
 942
 943         ma = (struct ma_info *)cbuserdata;
 944         if (ma->is_ma == 0) {
 945                 cprintf("suff=%s|%s\n", partnum, cbtype);
 946         }
 947         if (!strcasecmp(cbtype, "multipart/alternative")) {
 948                 --ma->is_ma;
 949         }
 950 }
 951
 952
 953 /*
 954  * Callback function for mime parser that opens a section for downloading
 955  */
 956 void mime_download(char *name, char *filename, char *partnum, char *disp,
 957                    void *content, char *cbtype, char *cbcharset, size_t length,
 958                    char *encoding, void *cbuserdata)
 959 {
 960
 961         /* Silently go away if there's already a download open... */
 962         if (CC->download_fp != NULL)
 963                 return;
 964
 965         /* ...or if this is not the desired section */
 966         if (strcasecmp(CC->download_desired_section, partnum))
 967                 return;
 968
 969         CC->download_fp = tmpfile();
 970         if (CC->download_fp == NULL)
 971                 return;
 972
 973         fwrite(content, length, 1, CC->download_fp);
 974         fflush(CC->download_fp);
 975         rewind(CC->download_fp);
 976
 977         OpenCmdResult(filename, cbtype);
 978 }
 979
 980
 981
 982 /*
 983  * Callback function for mime parser that outputs a section all at once
 984  */
 985 void mime_spew_section(char *name, char *filename, char *partnum, char *disp,
 986                    void *content, char *cbtype, char *cbcharset, size_t length,
 987                    char *encoding, void *cbuserdata)
 988 {
 989         int *found_it = (int *)cbuserdata;
 990
 991         /* ...or if this is not the desired section */
 992         if (strcasecmp(CC->download_desired_section, partnum))
 993                 return;
 994
 995         *found_it = 1;
 996
 997         cprintf("%d %d\n", BINARY_FOLLOWS, (int)length);
 998         client_write(content, length);
 999 }
1000
1001
1002
1003 /*
1004  * Load a message from disk into memory.
1005  * This is used by CtdlOutputMsg() and other fetch functions.
1006  *
1007  * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
1008  *       using the CtdlMessageFree() function.
1009  */
1010 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
1011 {
1012         struct cdbdata *dmsgtext;
1013         struct CtdlMessage *ret = NULL;
1014         char *mptr;
1015         char *upper_bound;
1016         cit_uint8_t ch;
1017         cit_uint8_t field_header;
1018
1019         CtdlLogPrintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
1020
1021         dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
1022         if (dmsgtext == NULL) {
1023                 return NULL;
1024         }
1025         mptr = dmsgtext->ptr;
1026         upper_bound = mptr + dmsgtext->len;
1027
1028         /* Parse the three bytes that begin EVERY message on disk.
1029          * The first is always 0xFF, the on-disk magic number.
1030          * The second is the anonymous/public type byte.
1031          * The third is the format type byte (vari, fixed, or MIME).
1032          */
1033         ch = *mptr++;
1034         if (ch != 255) {
1035                 CtdlLogPrintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
1036                 cdb_free(dmsgtext);
1037                 return NULL;
1038         }
1039         ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1040         memset(ret, 0, sizeof(struct CtdlMessage));
1041
1042         ret->cm_magic = CTDLMESSAGE_MAGIC;
1043         ret->cm_anon_type = *mptr++;    /* Anon type byte */
1044         ret->cm_format_type = *mptr++;  /* Format type byte */
1045
1046         /*
1047          * The rest is zero or more arbitrary fields.  Load them in.
1048          * We're done when we encounter either a zero-length field or
1049          * have just processed the 'M' (message text) field.
1050          */
1051         do {
1052                 if (mptr >= upper_bound) {
1053                         break;
1054                 }
1055                 field_header = *mptr++;
1056                 ret->cm_fields[field_header] = strdup(mptr);
1057
1058                 while (*mptr++ != 0);   /* advance to next field */
1059
1060         } while ((mptr < upper_bound) && (field_header != 'M'));
1061
1062         cdb_free(dmsgtext);
1063
1064         /* Always make sure there's something in the msg text field.  If
1065          * it's NULL, the message text is most likely stored separately,
1066          * so go ahead and fetch that.  Failing that, just set a dummy
1067          * body so other code doesn't barf.
1068          */
1069         if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
1070                 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
1071                 if (dmsgtext != NULL) {
1072                         ret->cm_fields['M'] = strdup(dmsgtext->ptr);
1073                         cdb_free(dmsgtext);
1074                 }
1075         }
1076         if (ret->cm_fields['M'] == NULL) {
1077                 ret->cm_fields['M'] = strdup("\r\n\r\n (no text)\r\n");
1078         }
1079
1080         /* Perform "before read" hooks (aborting if any return nonzero) */
1081         if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
1082                 CtdlFreeMessage(ret);
1083                 return NULL;
1084         }
1085
1086         return (ret);
1087 }
1088
1089
1090 /*
1091  * Returns 1 if the supplied pointer points to a valid Citadel message.
1092  * If the pointer is NULL or the magic number check fails, returns 0.
1093  */
1094 int is_valid_message(struct CtdlMessage *msg) {
1095         if (msg == NULL)
1096                 return 0;
1097         if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1098                 CtdlLogPrintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1099                 return 0;
1100         }
1101         return 1;
1102 }
1103
1104
1105 /*
1106  * 'Destructor' for struct CtdlMessage
1107  */
1108 void CtdlFreeMessage(struct CtdlMessage *msg)
1109 {
1110         int i;
1111
1112         if (is_valid_message(msg) == 0)
1113         {
1114                 if (msg != NULL) free (msg);
1115                 return;
1116         }
1117
1118         for (i = 0; i < 256; ++i)
1119                 if (msg->cm_fields[i] != NULL) {
1120                         free(msg->cm_fields[i]);
1121                 }
1122
1123         msg->cm_magic = 0;      /* just in case */
1124         free(msg);
1125 }
1126
1127
1128 /*
1129  * Pre callback function for multipart/alternative
1130  *
1131  * NOTE: this differs from the standard behavior for a reason.  Normally when
1132  *       displaying multipart/alternative you want to show the _last_ usable
1133  *       format in the message.  Here we show the _first_ one, because it's
1134  *       usually text/plain.  Since this set of functions is designed for text
1135  *       output to non-MIME-aware clients, this is the desired behavior.
1136  *
1137  */
1138 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1139                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1140                 void *cbuserdata)
1141 {
1142         struct ma_info *ma;
1143
1144         ma = (struct ma_info *)cbuserdata;
1145         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
1146         if (!strcasecmp(cbtype, "multipart/alternative")) {
1147                 ++ma->is_ma;
1148                 ma->did_print = 0;
1149         }
1150         if (!strcasecmp(cbtype, "message/rfc822")) {
1151                 ++ma->freeze;
1152         }
1153 }
1154
1155 /*
1156  * Post callback function for multipart/alternative
1157  */
1158 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1159                 void *content, char *cbtype, char *cbcharset, size_t length,
1160                 char *encoding, void *cbuserdata)
1161 {
1162         struct ma_info *ma;
1163
1164         ma = (struct ma_info *)cbuserdata;
1165         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
1166         if (!strcasecmp(cbtype, "multipart/alternative")) {
1167                 --ma->is_ma;
1168                 ma->did_print = 0;
1169         }
1170         if (!strcasecmp(cbtype, "message/rfc822")) {
1171                 --ma->freeze;
1172         }
1173 }
1174
1175 /*
1176  * Inline callback function for mime parser that wants to display text
1177  */
1178 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1179                 void *content, char *cbtype, char *cbcharset, size_t length,
1180                 char *encoding, void *cbuserdata)
1181 {
1182         char *ptr;
1183         char *wptr;
1184         size_t wlen;
1185         struct ma_info *ma;
1186
1187         ma = (struct ma_info *)cbuserdata;
1188
1189         CtdlLogPrintf(CTDL_DEBUG,
1190                 "fixed_output() part %s: %s (%s) (%ld bytes)\n",
1191                 partnum, filename, cbtype, (long)length);
1192
1193         /*
1194          * If we're in the middle of a multipart/alternative scope and
1195          * we've already printed another section, skip this one.
1196          */
1197         if ( (ma->is_ma) && (ma->did_print) ) {
1198                 CtdlLogPrintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1199                 return;
1200         }
1201         ma->did_print = 1;
1202
1203         if ( (!strcasecmp(cbtype, "text/plain"))
1204            || (IsEmptyStr(cbtype)) ) {
1205                 wptr = content;
1206                 if (length > 0) {
1207                         client_write(wptr, length);
1208                         if (wptr[length-1] != '\n') {
1209                                 cprintf("\n");
1210                         }
1211                 }
1212                 return;
1213         }
1214
1215         if (!strcasecmp(cbtype, "text/html")) {
1216                 ptr = html_to_ascii(content, length, 80, 0);
1217                 wlen = strlen(ptr);
1218                 client_write(ptr, wlen);
1219                 if (ptr[wlen-1] != '\n') {
1220                         cprintf("\n");
1221                 }
1222                 free(ptr);
1223                 return;
1224         }
1225
1226         if (ma->use_fo_hooks) {
1227                 if (PerformFixedOutputHooks(cbtype, content, length)) {
1228                 /* above function returns nonzero if it handled the part */
1229                         return;
1230                 }
1231         }
1232
1233         if (strncasecmp(cbtype, "multipart/", 10)) {
1234                 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1235                         partnum, filename, cbtype, (long)length);
1236                 return;
1237         }
1238 }
1239
1240 /*
1241  * The client is elegant and sophisticated and wants to be choosy about
1242  * MIME content types, so figure out which multipart/alternative part
1243  * we're going to send.
1244  *
1245  * We use a system of weights.  When we find a part that matches one of the
1246  * MIME types we've declared as preferential, we can store it in ma->chosen_part
1247  * and then set ma->chosen_pref to that MIME type's position in our preference
1248  * list.  If we then hit another match, we only replace the first match if
1249  * the preference value is lower.
1250  */
1251 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1252                 void *content, char *cbtype, char *cbcharset, size_t length,
1253                 char *encoding, void *cbuserdata)
1254 {
1255         char buf[1024];
1256         int i;
1257         struct ma_info *ma;
1258
1259         ma = (struct ma_info *)cbuserdata;
1260
1261         // NOTE: REMOVING THIS CONDITIONAL FIXES BUG 220
1262         //       http://bugzilla.citadel.org/show_bug.cgi?id=220
1263         // I don't know if there are any side effects!  Please TEST TEST TEST
1264         //if (ma->is_ma > 0) {
1265
1266         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1267                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1268                 if ( (!strcasecmp(buf, cbtype)) && (!ma->freeze) ) {
1269                         if (i < ma->chosen_pref) {
1270                                 CtdlLogPrintf(CTDL_DEBUG, "Setting chosen part: <%s>\n", partnum);
1271                                 safestrncpy(ma->chosen_part, partnum, sizeof ma->chosen_part);
1272                                 ma->chosen_pref = i;
1273                         }
1274                 }
1275         }
1276 }
1277
1278 /*
1279  * Now that we've chosen our preferred part, output it.
1280  */
1281 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1282                 void *content, char *cbtype, char *cbcharset, size_t length,
1283                 char *encoding, void *cbuserdata)
1284 {
1285         int i;
1286         char buf[128];
1287         int add_newline = 0;
1288         char *text_content;
1289         struct ma_info *ma;
1290
1291         ma = (struct ma_info *)cbuserdata;
1292
1293         /* This is not the MIME part you're looking for... */
1294         if (strcasecmp(partnum, ma->chosen_part)) return;
1295
1296         /* If the content-type of this part is in our preferred formats
1297          * list, we can simply output it verbatim.
1298          */
1299         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1300                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1301                 if (!strcasecmp(buf, cbtype)) {
1302                         /* Yeah!  Go!  W00t!! */
1303
1304                         text_content = (char *)content;
1305                         if (text_content[length-1] != '\n') {
1306                                 ++add_newline;
1307                         }
1308                         cprintf("Content-type: %s", cbtype);
1309                         if (!IsEmptyStr(cbcharset)) {
1310                                 cprintf("; charset=%s", cbcharset);
1311                         }
1312                         cprintf("\nContent-length: %d\n",
1313                                 (int)(length + add_newline) );
1314                         if (!IsEmptyStr(encoding)) {
1315                                 cprintf("Content-transfer-encoding: %s\n", encoding);
1316                         }
1317                         else {
1318                                 cprintf("Content-transfer-encoding: 7bit\n");
1319                         }
1320                         cprintf("X-Citadel-MSG4-Partnum: %s\n", partnum);
1321                         cprintf("\n");
1322                         client_write(content, length);
1323                         if (add_newline) cprintf("\n");
1324                         return;
1325                 }
1326         }
1327
1328         /* No translations required or possible: output as text/plain */
1329         cprintf("Content-type: text/plain\n\n");
1330         fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1331                         length, encoding, cbuserdata);
1332 }
1333
1334
1335 struct encapmsg {
1336         char desired_section[64];
1337         char *msg;
1338         size_t msglen;
1339 };
1340
1341
1342 /*
1343  * Callback function for
1344  */
1345 void extract_encapsulated_message(char *name, char *filename, char *partnum, char *disp,
1346                    void *content, char *cbtype, char *cbcharset, size_t length,
1347                    char *encoding, void *cbuserdata)
1348 {
1349         struct encapmsg *encap;
1350
1351         encap = (struct encapmsg *)cbuserdata;
1352
1353         /* Only proceed if this is the desired section... */
1354         if (!strcasecmp(encap->desired_section, partnum)) {
1355                 encap->msglen = length;
1356                 encap->msg = malloc(length + 2);
1357                 memcpy(encap->msg, content, length);
1358                 return;
1359         }
1360
1361 }
1362
1363
1364
1365
1366 /*
1367  * Get a message off disk.  (returns om_* values found in msgbase.h)
1368  *
1369  */
1370 int CtdlOutputMsg(long msg_num,         /* message number (local) to fetch */
1371                 int mode,               /* how would you like that message? */
1372                 int headers_only,       /* eschew the message body? */
1373                 int do_proto,           /* do Citadel protocol responses? */
1374                 int crlf,               /* Use CRLF newlines instead of LF? */
1375                 char *section           /* NULL or a message/rfc822 section */
1376 ) {
1377         struct CtdlMessage *TheMessage = NULL;
1378         int retcode = om_no_such_msg;
1379         struct encapmsg encap;
1380
1381         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n",
1382                 msg_num, mode,
1383                 (section ? section : "<>")
1384         );
1385
1386         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1387                 if (do_proto) cprintf("%d Not logged in.\n",
1388                         ERROR + NOT_LOGGED_IN);
1389                 return(om_not_logged_in);
1390         }
1391
1392         /* FIXME: check message id against msglist for this room */
1393
1394         /*
1395          * Fetch the message from disk.  If we're in any sort of headers
1396          * only mode, request that we don't even bother loading the body
1397          * into memory.
1398          */
1399         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1400                 TheMessage = CtdlFetchMessage(msg_num, 0);
1401         }
1402         else {
1403                 TheMessage = CtdlFetchMessage(msg_num, 1);
1404         }
1405
1406         if (TheMessage == NULL) {
1407                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1408                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1409                 return(om_no_such_msg);
1410         }
1411
1412         /* Here is the weird form of this command, to process only an
1413          * encapsulated message/rfc822 section.
1414          */
1415         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1416                 memset(&encap, 0, sizeof encap);
1417                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1418                 mime_parser(TheMessage->cm_fields['M'],
1419                         NULL,
1420                         *extract_encapsulated_message,
1421                         NULL, NULL, (void *)&encap, 0
1422                 );
1423                 CtdlFreeMessage(TheMessage);
1424                 TheMessage = NULL;
1425
1426                 if (encap.msg) {
1427                         encap.msg[encap.msglen] = 0;
1428                         TheMessage = convert_internet_message(encap.msg);
1429                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1430
1431                         /* Now we let it fall through to the bottom of this
1432                          * function, because TheMessage now contains the
1433                          * encapsulated message instead of the top-level
1434                          * message.  Isn't that neat?
1435                          */
1436
1437                 }
1438                 else {
1439                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1440                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1441                         retcode = om_no_such_msg;
1442                 }
1443
1444         }
1445
1446         /* Ok, output the message now */
1447         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf);
1448         CtdlFreeMessage(TheMessage);
1449
1450         return(retcode);
1451 }
1452
1453 char *qp_encode_email_addrs(char *source)
1454 {
1455         char user[256], node[256], name[256];
1456         const char headerStr[] = "=?UTF-8?Q?";
1457         char *Encoded;
1458         char *EncodedName;
1459         char *nPtr;
1460         int need_to_encode = 0;
1461         long SourceLen;
1462         long EncodedMaxLen;
1463         long nColons = 0;
1464         long *AddrPtr;
1465         long *AddrUtf8;
1466         long nAddrPtrMax = 50;
1467         long nmax;
1468         int InQuotes = 0;
1469         int i, n;
1470
1471
1472         if (source == NULL)
1473                 return source;
1474
1475         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1476         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1477         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1478         *AddrPtr = 0;
1479         i = 0;
1480         while (!IsEmptyStr (&source[i])) {
1481                 if (nColons > nAddrPtrMax){
1482                         long *ptr;
1483
1484                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1485                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1486                         free (AddrPtr), AddrPtr = ptr;
1487                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1488                         memset(ptr + sizeof (long) * nAddrPtrMax, 0, sizeof (long) * nAddrPtrMax - 1);
1489                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1490                         free (AddrUtf8), AddrUtf8 = ptr;
1491                         nAddrPtrMax *= 2;
1492                 }
1493                 if (((unsigned char) source[i] < 32) ||
1494                     ((unsigned char) source[i] > 126)) {
1495                         need_to_encode = 1;
1496                         AddrUtf8[nColons] = 1;
1497                 }
1498                 if (source[i] == '"')
1499                         InQuotes = !InQuotes;
1500                 if (!InQuotes && source[i] == ',') {
1501                         nColons++;
1502                         AddrPtr[nColons] = i;
1503                 }
1504                 i++;
1505         }
1506         if (need_to_encode == 0) {
1507                 free(AddrPtr);
1508                 free(AddrUtf8);
1509                 return source;
1510         }
1511
1512         SourceLen = i;
1513         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1514         Encoded = (char*) malloc (EncodedMaxLen);
1515
1516         for (i = 1; i <= nColons; i++)
1517                 source[AddrPtr[i]++] = '\0';
1518
1519         nPtr = Encoded;
1520         *nPtr = '\0';
1521         for (i = 0; i <= nColons && nPtr != NULL; i++) {
1522                 nmax = EncodedMaxLen - (nPtr - Encoded);
1523                 if (AddrUtf8[i]) {
1524                         process_rfc822_addr(&source[AddrPtr[i]],
1525                                             user,
1526                                             node,
1527                                             name);
1528                         /* TODO: libIDN here ! */
1529                         if (IsEmptyStr(name)) {
1530                                 n = snprintf(nPtr, nmax,
1531                                              (i==0)?"%s@%s" : ",%s@%s",
1532                                              user, node);
1533                         }
1534                         else {
1535                                 EncodedName = rfc2047encode(name, strlen(name));
1536                                 n = snprintf(nPtr, nmax,
1537                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1538                                              EncodedName, user, node);
1539                                 free(EncodedName);
1540                         }
1541                 }
1542                 else {
1543                         n = snprintf(nPtr, nmax,
1544                                      (i==0)?"%s" : ",%s",
1545                                      &source[AddrPtr[i]]);
1546                 }
1547                 if (n > 0 )
1548                         nPtr += n;
1549                 else {
1550                         char *ptr, *nnPtr;
1551                         ptr = (char*) malloc(EncodedMaxLen * 2);
1552                         memcpy(ptr, Encoded, EncodedMaxLen);
1553                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1554                         free(Encoded), Encoded = ptr;
1555                         EncodedMaxLen *= 2;
1556                         i--; /* do it once more with properly lengthened buffer */
1557                 }
1558         }
1559         for (i = 1; i <= nColons; i++)
1560                 source[--AddrPtr[i]] = ',';
1561         free(AddrUtf8);
1562         free(AddrPtr);
1563         return Encoded;
1564 }
1565
1566 /*
1567  * Get a message off disk.  (returns om_* values found in msgbase.h)
1568  */
1569 int CtdlOutputPreLoadedMsg(
1570                 struct CtdlMessage *TheMessage,
1571                 int mode,               /* how would you like that message? */
1572                 int headers_only,       /* eschew the message body? */
1573                 int do_proto,           /* do Citadel protocol responses? */
1574                 int crlf                /* Use CRLF newlines instead of LF? */
1575 ) {
1576         int i, j, k;
1577         char buf[SIZ];
1578         cit_uint8_t ch;
1579         char allkeys[30];
1580         char display_name[256];
1581         char *mptr, *mpptr;
1582         char *nl;       /* newline string */
1583         int suppress_f = 0;
1584         int subject_found = 0;
1585         struct ma_info ma;
1586
1587         /* Buffers needed for RFC822 translation.  These are all filled
1588          * using functions that are bounds-checked, and therefore we can
1589          * make them substantially smaller than SIZ.
1590          */
1591         char suser[100];
1592         char luser[100];
1593         char fuser[100];
1594         char snode[100];
1595         char lnode[100];
1596         char mid[100];
1597         char datestamp[100];
1598
1599         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1600                 ((TheMessage == NULL) ? "NULL" : "not null"),
1601                 mode, headers_only, do_proto, crlf);
1602
1603         strcpy(mid, "unknown");
1604         nl = (crlf ? "\r\n" : "\n");
1605
1606         if (!is_valid_message(TheMessage)) {
1607                 CtdlLogPrintf(CTDL_ERR,
1608                         "ERROR: invalid preloaded message for output\n");
1609                 return(om_no_such_msg);
1610         }
1611
1612         /* Are we downloading a MIME component? */
1613         if (mode == MT_DOWNLOAD) {
1614                 if (TheMessage->cm_format_type != FMT_RFC822) {
1615                         if (do_proto)
1616                                 cprintf("%d This is not a MIME message.\n",
1617                                 ERROR + ILLEGAL_VALUE);
1618                 } else if (CC->download_fp != NULL) {
1619                         if (do_proto) cprintf(
1620                                 "%d You already have a download open.\n",
1621                                 ERROR + RESOURCE_BUSY);
1622                 } else {
1623                         /* Parse the message text component */
1624                         mptr = TheMessage->cm_fields['M'];
1625                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1626                         /* If there's no file open by this time, the requested
1627                          * section wasn't found, so print an error
1628                          */
1629                         if (CC->download_fp == NULL) {
1630                                 if (do_proto) cprintf(
1631                                         "%d Section %s not found.\n",
1632                                         ERROR + FILE_NOT_FOUND,
1633                                         CC->download_desired_section);
1634                         }
1635                 }
1636                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1637         }
1638
1639         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1640          * in a single server operation instead of opening a download file.
1641          */
1642         if (mode == MT_SPEW_SECTION) {
1643                 if (TheMessage->cm_format_type != FMT_RFC822) {
1644                         if (do_proto)
1645                                 cprintf("%d This is not a MIME message.\n",
1646                                 ERROR + ILLEGAL_VALUE);
1647                 } else {
1648                         /* Parse the message text component */
1649                         int found_it = 0;
1650
1651                         mptr = TheMessage->cm_fields['M'];
1652                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1653                         /* If section wasn't found, print an error
1654                          */
1655                         if (!found_it) {
1656                                 if (do_proto) cprintf(
1657                                         "%d Section %s not found.\n",
1658                                         ERROR + FILE_NOT_FOUND,
1659                                         CC->download_desired_section);
1660                         }
1661                 }
1662                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1663         }
1664
1665         /* now for the user-mode message reading loops */
1666         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1667
1668         /* Does the caller want to skip the headers? */
1669         if (headers_only == HEADERS_NONE) goto START_TEXT;
1670
1671         /* Tell the client which format type we're using. */
1672         if ( (mode == MT_CITADEL) && (do_proto) ) {
1673                 cprintf("type=%d\n", TheMessage->cm_format_type);
1674         }
1675
1676         /* nhdr=yes means that we're only displaying headers, no body */
1677         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1678            && (mode == MT_CITADEL)
1679            && (do_proto)
1680            ) {
1681                 cprintf("nhdr=yes\n");
1682         }
1683
1684         /* begin header processing loop for Citadel message format */
1685
1686         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1687
1688                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1689                 if (TheMessage->cm_fields['A']) {
1690                         strcpy(buf, TheMessage->cm_fields['A']);
1691                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1692                                 safestrncpy(display_name, "****", sizeof display_name);
1693                         }
1694                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1695                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1696                         }
1697                         else {
1698                                 safestrncpy(display_name, buf, sizeof display_name);
1699                         }
1700                         if ((is_room_aide())
1701                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1702                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1703                                 size_t tmp = strlen(display_name);
1704                                 snprintf(&display_name[tmp],
1705                                          sizeof display_name - tmp,
1706                                          " [%s]", buf);
1707                         }
1708                 }
1709
1710                 /* Don't show Internet address for users on the
1711                  * local Citadel network.
1712                  */
1713                 suppress_f = 0;
1714                 if (TheMessage->cm_fields['N'] != NULL)
1715                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1716                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1717                         suppress_f = 1;
1718                 }
1719
1720                 /* Now spew the header fields in the order we like them. */
1721                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1722                 for (i=0; i<strlen(allkeys); ++i) {
1723                         k = (int) allkeys[i];
1724                         if (k != 'M') {
1725                                 if ( (TheMessage->cm_fields[k] != NULL)
1726                                    && (msgkeys[k] != NULL) ) {
1727                                         if (k == 'A') {
1728                                                 if (do_proto) cprintf("%s=%s\n",
1729                                                         msgkeys[k],
1730                                                         display_name);
1731                                         }
1732                                         else if ((k == 'F') && (suppress_f)) {
1733                                                 /* do nothing */
1734                                         }
1735                                         /* Masquerade display name if needed */
1736                                         else {
1737                                                 if (do_proto) cprintf("%s=%s\n",
1738                                                         msgkeys[k],
1739                                                         TheMessage->cm_fields[k]
1740                                         );
1741                                         }
1742                                 }
1743                         }
1744                 }
1745
1746         }
1747
1748         /* begin header processing loop for RFC822 transfer format */
1749
1750         strcpy(suser, "");
1751         strcpy(luser, "");
1752         strcpy(fuser, "");
1753         strcpy(snode, NODENAME);
1754         strcpy(lnode, HUMANNODE);
1755         if (mode == MT_RFC822) {
1756                 for (i = 0; i < 256; ++i) {
1757                         if (TheMessage->cm_fields[i]) {
1758                                 mptr = mpptr = TheMessage->cm_fields[i];
1759
1760                                 if (i == 'A') {
1761                                         safestrncpy(luser, mptr, sizeof luser);
1762                                         safestrncpy(suser, mptr, sizeof suser);
1763                                 }
1764                                 else if (i == 'Y') {
1765                                         mptr = qp_encode_email_addrs(mptr);
1766                                         cprintf("CC: %s%s", mptr, nl);
1767                                 }
1768                                 else if (i == 'P') {
1769                                         cprintf("Return-Path: %s%s", mptr, nl);
1770                                 }
1771                                 else if (i == 'V') {
1772                                         mptr = qp_encode_email_addrs(mptr);
1773                                         cprintf("Envelope-To: %s%s", mptr, nl);
1774                                 }
1775                                 else if (i == 'U') {
1776                                         cprintf("Subject: %s%s", mptr, nl);
1777                                         subject_found = 1;
1778                                 }
1779                                 else if (i == 'I')
1780                                         safestrncpy(mid, mptr, sizeof mid);
1781                                 else if (i == 'H')
1782                                         safestrncpy(lnode, mptr, sizeof lnode);
1783                                 else if (i == 'F')
1784                                         safestrncpy(fuser, mptr, sizeof fuser);
1785                                 /* else if (i == 'O')
1786                                         cprintf("X-Citadel-Room: %s%s",
1787                                                 mptr, nl); */
1788                                 else if (i == 'N')
1789                                         safestrncpy(snode, mptr, sizeof snode);
1790                                 else if (i == 'R')
1791                                 {
1792                                         if (haschar(mptr, '@') == 0)
1793                                         {
1794                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1795                                         }
1796                                         else
1797                                         {
1798                                                 mptr = qp_encode_email_addrs(mptr);
1799                                                 cprintf("To: %s%s", mptr, nl);
1800                                         }
1801                                 }
1802                                 else if (i == 'T') {
1803                                         datestring(datestamp, sizeof datestamp,
1804                                                 atol(mptr), DATESTRING_RFC822);
1805                                         cprintf("Date: %s%s", datestamp, nl);
1806                                 }
1807                                 else if (i == 'W') {
1808                                         cprintf("References: ");
1809                                         k = num_tokens(mptr, '|');
1810                                         for (j=0; j<k; ++j) {
1811                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1812                                                 cprintf("<%s>", buf);
1813                                                 if (j == (k-1)) {
1814                                                         cprintf("%s", nl);
1815                                                 }
1816                                                 else {
1817                                                         cprintf(" ");
1818                                                 }
1819                                         }
1820                                 }
1821                                 if (mptr != mpptr)
1822                                         free (mptr);
1823                         }
1824                 }
1825                 if (subject_found == 0) {
1826                         cprintf("Subject: (no subject)%s", nl);
1827                 }
1828         }
1829
1830         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1831                 suser[i] = tolower(suser[i]);
1832                 if (!isalnum(suser[i])) suser[i]='_';
1833         }
1834
1835         if (mode == MT_RFC822) {
1836                 if (!strcasecmp(snode, NODENAME)) {
1837                         safestrncpy(snode, FQDN, sizeof snode);
1838                 }
1839
1840                 /* Construct a fun message id */
1841                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1842                 if (strchr(mid, '@')==NULL) {
1843                         cprintf("@%s", snode);
1844                 }
1845                 cprintf(">%s", nl);
1846
1847                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1848                         cprintf("From: \"----\" <x@x.org>%s", nl);
1849                 }
1850                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1851                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1852                 }
1853                 else if (!IsEmptyStr(fuser)) {
1854                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1855                 }
1856                 else {
1857                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1858                 }
1859
1860                 cprintf("Organization: %s%s", lnode, nl);
1861
1862                 /* Blank line signifying RFC822 end-of-headers */
1863                 if (TheMessage->cm_format_type != FMT_RFC822) {
1864                         cprintf("%s", nl);
1865                 }
1866         }
1867
1868         /* end header processing loop ... at this point, we're in the text */
1869 START_TEXT:
1870         if (headers_only == HEADERS_FAST) goto DONE;
1871         mptr = TheMessage->cm_fields['M'];
1872
1873         /* Tell the client about the MIME parts in this message */
1874         if (TheMessage->cm_format_type == FMT_RFC822) {
1875                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1876                         memset(&ma, 0, sizeof(struct ma_info));
1877                         mime_parser(mptr, NULL,
1878                                 (do_proto ? *list_this_part : NULL),
1879                                 (do_proto ? *list_this_pref : NULL),
1880                                 (do_proto ? *list_this_suff : NULL),
1881                                 (void *)&ma, 0);
1882                 }
1883                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1884                         char *start_of_text = NULL;
1885                         start_of_text = strstr(mptr, "\n\r\n");
1886                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1887                         if (start_of_text == NULL) start_of_text = mptr;
1888                         ++start_of_text;
1889                         start_of_text = strstr(start_of_text, "\n");
1890                         ++start_of_text;
1891
1892                         char outbuf[1024];
1893                         int outlen = 0;
1894                         int nllen = strlen(nl);
1895                         while (ch=*mptr, ch!=0) {
1896                                 if (ch==13) {
1897                                         /* do nothing */
1898                                 }
1899                                 else {
1900                                         if (
1901                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1902                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1903                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1904                                         ) {
1905                                                 if (ch == 10) {
1906                                                         sprintf(&outbuf[outlen], "%s", nl);
1907                                                         outlen += nllen;
1908                                                 }
1909                                                 else {
1910                                                         outbuf[outlen++] = ch;
1911                                                 }
1912                                         }
1913                                 }
1914                                 ++mptr;
1915                                 if (outlen > 1000) {
1916                                         client_write(outbuf, outlen);
1917                                         outlen = 0;
1918                                 }
1919                         }
1920                         if (outlen > 0) {
1921                                 client_write(outbuf, outlen);
1922                                 outlen = 0;
1923                         }
1924
1925                         goto DONE;
1926                 }
1927         }
1928
1929         if (headers_only == HEADERS_ONLY) {
1930                 goto DONE;
1931         }
1932
1933         /* signify start of msg text */
1934         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1935                 if (do_proto) cprintf("text\n");
1936         }
1937
1938         /* If the format type on disk is 1 (fixed-format), then we want
1939          * everything to be output completely literally ... regardless of
1940          * what message transfer format is in use.
1941          */
1942         if (TheMessage->cm_format_type == FMT_FIXED) {
1943                 int buflen;
1944                 if (mode == MT_MIME) {
1945                         cprintf("Content-type: text/plain\n\n");
1946                 }
1947                 *buf = '\0';
1948                 buflen = 0;
1949                 while (ch = *mptr++, ch > 0) {
1950                         if (ch == 13)
1951                                 ch = 10;
1952                         if ((ch == 10) || (buflen > 250)) {
1953                                 buf[buflen] = '\0';
1954                                 cprintf("%s%s", buf, nl);
1955                                 *buf = '\0';
1956                                 buflen = 0;
1957                         } else {
1958                                 buf[buflen] = ch;
1959                                 buflen++;
1960                         }
1961                 }
1962                 buf[buflen] = '\0';
1963                 if (!IsEmptyStr(buf))
1964                         cprintf("%s%s", buf, nl);
1965         }
1966
1967         /* If the message on disk is format 0 (Citadel vari-format), we
1968          * output using the formatter at 80 columns.  This is the final output
1969          * form if the transfer format is RFC822, but if the transfer format
1970          * is Citadel proprietary, it'll still work, because the indentation
1971          * for new paragraphs is correct and the client will reformat the
1972          * message to the reader's screen width.
1973          */
1974         if (TheMessage->cm_format_type == FMT_CITADEL) {
1975                 if (mode == MT_MIME) {
1976                         cprintf("Content-type: text/x-citadel-variformat\n\n");
1977                 }
1978                 memfmout(mptr, 0, nl);
1979         }
1980
1981         /* If the message on disk is format 4 (MIME), we've gotta hand it
1982          * off to the MIME parser.  The client has already been told that
1983          * this message is format 1 (fixed format), so the callback function
1984          * we use will display those parts as-is.
1985          */
1986         if (TheMessage->cm_format_type == FMT_RFC822) {
1987                 memset(&ma, 0, sizeof(struct ma_info));
1988
1989                 if (mode == MT_MIME) {
1990                         ma.use_fo_hooks = 0;
1991                         strcpy(ma.chosen_part, "1");
1992                         ma.chosen_pref = 9999;
1993                         mime_parser(mptr, NULL,
1994                                 *choose_preferred, *fixed_output_pre,
1995                                 *fixed_output_post, (void *)&ma, 0);
1996                         mime_parser(mptr, NULL,
1997                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
1998                 }
1999                 else {
2000                         ma.use_fo_hooks = 1;
2001                         mime_parser(mptr, NULL,
2002                                 *fixed_output, *fixed_output_pre,
2003                                 *fixed_output_post, (void *)&ma, 0);
2004                 }
2005
2006         }
2007
2008 DONE:   /* now we're done */
2009         if (do_proto) cprintf("000\n");
2010         return(om_ok);
2011 }
2012
2013
2014
2015 /*
2016  * display a message (mode 0 - Citadel proprietary)
2017  */
2018 void cmd_msg0(char *cmdbuf)
2019 {
2020         long msgid;
2021         int headers_only = HEADERS_ALL;
2022
2023         msgid = extract_long(cmdbuf, 0);
2024         headers_only = extract_int(cmdbuf, 1);
2025
2026         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL);
2027         return;
2028 }
2029
2030
2031 /*
2032  * display a message (mode 2 - RFC822)
2033  */
2034 void cmd_msg2(char *cmdbuf)
2035 {
2036         long msgid;
2037         int headers_only = HEADERS_ALL;
2038
2039         msgid = extract_long(cmdbuf, 0);
2040         headers_only = extract_int(cmdbuf, 1);
2041
2042         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL);
2043 }
2044
2045
2046
2047 /*
2048  * display a message (mode 3 - IGnet raw format - internal programs only)
2049  */
2050 void cmd_msg3(char *cmdbuf)
2051 {
2052         long msgnum;
2053         struct CtdlMessage *msg = NULL;
2054         struct ser_ret smr;
2055
2056         if (CC->internal_pgm == 0) {
2057                 cprintf("%d This command is for internal programs only.\n",
2058                         ERROR + HIGHER_ACCESS_REQUIRED);
2059                 return;
2060         }
2061
2062         msgnum = extract_long(cmdbuf, 0);
2063         msg = CtdlFetchMessage(msgnum, 1);
2064         if (msg == NULL) {
2065                 cprintf("%d Message %ld not found.\n",
2066                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2067                 return;
2068         }
2069
2070         serialize_message(&smr, msg);
2071         CtdlFreeMessage(msg);
2072
2073         if (smr.len == 0) {
2074                 cprintf("%d Unable to serialize message\n",
2075                         ERROR + INTERNAL_ERROR);
2076                 return;
2077         }
2078
2079         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2080         client_write((char *)smr.ser, (int)smr.len);
2081         free(smr.ser);
2082 }
2083
2084
2085
2086 /*
2087  * Display a message using MIME content types
2088  */
2089 void cmd_msg4(char *cmdbuf)
2090 {
2091         long msgid;
2092         char section[64];
2093
2094         msgid = extract_long(cmdbuf, 0);
2095         extract_token(section, cmdbuf, 1, '|', sizeof section);
2096         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) );
2097 }
2098
2099
2100
2101 /*
2102  * Client tells us its preferred message format(s)
2103  */
2104 void cmd_msgp(char *cmdbuf)
2105 {
2106         if (!strcasecmp(cmdbuf, "dont_decode")) {
2107                 CC->msg4_dont_decode = 1;
2108                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2109         }
2110         else {
2111                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2112                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2113         }
2114 }
2115
2116
2117 /*
2118  * Open a component of a MIME message as a download file
2119  */
2120 void cmd_opna(char *cmdbuf)
2121 {
2122         long msgid;
2123         char desired_section[128];
2124
2125         msgid = extract_long(cmdbuf, 0);
2126         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2127         safestrncpy(CC->download_desired_section, desired_section,
2128                 sizeof CC->download_desired_section);
2129         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL);
2130 }
2131
2132
2133 /*
2134  * Open a component of a MIME message and transmit it all at once
2135  */
2136 void cmd_dlat(char *cmdbuf)
2137 {
2138         long msgid;
2139         char desired_section[128];
2140
2141         msgid = extract_long(cmdbuf, 0);
2142         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2143         safestrncpy(CC->download_desired_section, desired_section,
2144                 sizeof CC->download_desired_section);
2145         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL);
2146 }
2147
2148
2149 /*
2150  * Save one or more message pointers into a specified room
2151  * (Returns 0 for success, nonzero for failure)
2152  * roomname may be NULL to use the current room
2153  *
2154  * Note that the 'supplied_msg' field may be set to NULL, in which case
2155  * the message will be fetched from disk, by number, if we need to perform
2156  * replication checks.  This adds an additional database read, so if the
2157  * caller already has the message in memory then it should be supplied.  (Obviously
2158  * this mode of operation only works if we're saving a single message.)
2159  */
2160 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2161                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2162 {
2163         int i, j, unique;
2164         char hold_rm[ROOMNAMELEN];
2165         struct cdbdata *cdbfr;
2166         int num_msgs;
2167         long *msglist;
2168         long highest_msg = 0L;
2169
2170         long msgid = 0;
2171         struct CtdlMessage *msg = NULL;
2172
2173         long *msgs_to_be_merged = NULL;
2174         int num_msgs_to_be_merged = 0;
2175
2176         CtdlLogPrintf(CTDL_DEBUG,
2177                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2178                 roomname, num_newmsgs, do_repl_check);
2179
2180         strcpy(hold_rm, CC->room.QRname);
2181
2182         /* Sanity checks */
2183         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2184         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2185         if (num_newmsgs > 1) supplied_msg = NULL;
2186
2187         /* Now the regular stuff */
2188         if (lgetroom(&CC->room,
2189            ((roomname != NULL) ? roomname : CC->room.QRname) )
2190            != 0) {
2191                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2192                 return(ERROR + ROOM_NOT_FOUND);
2193         }
2194
2195
2196         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2197         num_msgs_to_be_merged = 0;
2198
2199
2200         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2201         if (cdbfr == NULL) {
2202                 msglist = NULL;
2203                 num_msgs = 0;
2204         } else {
2205                 msglist = (long *) cdbfr->ptr;
2206                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2207                 num_msgs = cdbfr->len / sizeof(long);
2208                 cdb_free(cdbfr);
2209         }
2210
2211
2212         /* Create a list of msgid's which were supplied by the caller, but do
2213          * not already exist in the target room.  It is absolutely taboo to
2214          * have more than one reference to the same message in a room.
2215          */
2216         for (i=0; i<num_newmsgs; ++i) {
2217                 unique = 1;
2218                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2219                         if (msglist[j] == newmsgidlist[i]) {
2220                                 unique = 0;
2221                         }
2222                 }
2223                 if (unique) {
2224                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2225                 }
2226         }
2227
2228         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2229
2230         /*
2231          * Now merge the new messages
2232          */
2233         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2234         if (msglist == NULL) {
2235                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2236         }
2237         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2238         num_msgs += num_msgs_to_be_merged;
2239
2240         /* Sort the message list, so all the msgid's are in order */
2241         num_msgs = sort_msglist(msglist, num_msgs);
2242
2243         /* Determine the highest message number */
2244         highest_msg = msglist[num_msgs - 1];
2245
2246         /* Write it back to disk. */
2247         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2248                   msglist, (int)(num_msgs * sizeof(long)));
2249
2250         /* Free up the memory we used. */
2251         free(msglist);
2252
2253         /* Update the highest-message pointer and unlock the room. */
2254         CC->room.QRhighest = highest_msg;
2255         lputroom(&CC->room);
2256
2257         /* Perform replication checks if necessary */
2258         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2259                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2260
2261                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2262                         msgid = msgs_to_be_merged[i];
2263
2264                         if (supplied_msg != NULL) {
2265                                 msg = supplied_msg;
2266                         }
2267                         else {
2268                                 msg = CtdlFetchMessage(msgid, 0);
2269                         }
2270
2271                         if (msg != NULL) {
2272                                 ReplicationChecks(msg);
2273
2274                                 /* If the message has an Exclusive ID, index that... */
2275                                 if (msg->cm_fields['E'] != NULL) {
2276                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2277                                 }
2278
2279                                 /* Free up the memory we may have allocated */
2280                                 if (msg != supplied_msg) {
2281                                         CtdlFreeMessage(msg);
2282                                 }
2283                         }
2284
2285                 }
2286         }
2287
2288         else {
2289                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2290         }
2291
2292         /* Submit this room for processing by hooks */
2293         PerformRoomHooks(&CC->room);
2294
2295         /* Go back to the room we were in before we wandered here... */
2296         getroom(&CC->room, hold_rm);
2297
2298         /* Bump the reference count for all messages which were merged */
2299         for (i=0; i<num_msgs_to_be_merged; ++i) {
2300                 AdjRefCount(msgs_to_be_merged[i], +1);
2301         }
2302
2303         /* Free up memory... */
2304         if (msgs_to_be_merged != NULL) {
2305                 free(msgs_to_be_merged);
2306         }
2307
2308         /* Return success. */
2309         return (0);
2310 }
2311
2312
2313 /*
2314  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2315  * a single message.
2316  */
2317 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2318                         int do_repl_check, struct CtdlMessage *supplied_msg)
2319 {
2320         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2321 }
2322
2323
2324
2325
2326 /*
2327  * Message base operation to save a new message to the message store
2328  * (returns new message number)
2329  *
2330  * This is the back end for CtdlSubmitMsg() and should not be directly
2331  * called by server-side modules.
2332  *
2333  */
2334 long send_message(struct CtdlMessage *msg) {
2335         long newmsgid;
2336         long retval;
2337         char msgidbuf[256];
2338         struct ser_ret smr;
2339         int is_bigmsg = 0;
2340         char *holdM = NULL;
2341
2342         /* Get a new message number */
2343         newmsgid = get_new_message_number();
2344         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2345
2346         /* Generate an ID if we don't have one already */
2347         if (msg->cm_fields['I']==NULL) {
2348                 msg->cm_fields['I'] = strdup(msgidbuf);
2349         }
2350
2351         /* If the message is big, set its body aside for storage elsewhere */
2352         if (msg->cm_fields['M'] != NULL) {
2353                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2354                         is_bigmsg = 1;
2355                         holdM = msg->cm_fields['M'];
2356                         msg->cm_fields['M'] = NULL;
2357                 }
2358         }
2359
2360         /* Serialize our data structure for storage in the database */
2361         serialize_message(&smr, msg);
2362
2363         if (is_bigmsg) {
2364                 msg->cm_fields['M'] = holdM;
2365         }
2366
2367         if (smr.len == 0) {
2368                 cprintf("%d Unable to serialize message\n",
2369                         ERROR + INTERNAL_ERROR);
2370                 return (-1L);
2371         }
2372
2373         /* Write our little bundle of joy into the message base */
2374         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2375                       smr.ser, smr.len) < 0) {
2376                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2377                 retval = 0L;
2378         } else {
2379                 if (is_bigmsg) {
2380                         cdb_store(CDB_BIGMSGS,
2381                                 &newmsgid,
2382                                 (int)sizeof(long),
2383                                 holdM,
2384                                 (strlen(holdM) + 1)
2385                         );
2386                 }
2387                 retval = newmsgid;
2388         }
2389
2390         /* Free the memory we used for the serialized message */
2391         free(smr.ser);
2392
2393         /* Return the *local* message ID to the caller
2394          * (even if we're storing an incoming network message)
2395          */
2396         return(retval);
2397 }
2398
2399
2400
2401 /*
2402  * Serialize a struct CtdlMessage into the format used on disk and network.
2403  *
2404  * This function loads up a "struct ser_ret" (defined in server.h) which
2405  * contains the length of the serialized message and a pointer to the
2406  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2407  */
2408 void serialize_message(struct ser_ret *ret,             /* return values */
2409                         struct CtdlMessage *msg)        /* unserialized msg */
2410 {
2411         size_t wlen, fieldlen;
2412         int i;
2413         static char *forder = FORDER;
2414
2415         /*
2416          * Check for valid message format
2417          */
2418         if (is_valid_message(msg) == 0) {
2419                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2420                 ret->len = 0;
2421                 ret->ser = NULL;
2422                 return;
2423         }
2424
2425         ret->len = 3;
2426         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2427                 ret->len = ret->len +
2428                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2429
2430         ret->ser = malloc(ret->len);
2431         if (ret->ser == NULL) {
2432                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2433                         (long)ret->len, strerror(errno));
2434                 ret->len = 0;
2435                 ret->ser = NULL;
2436                 return;
2437         }
2438
2439         ret->ser[0] = 0xFF;
2440         ret->ser[1] = msg->cm_anon_type;
2441         ret->ser[2] = msg->cm_format_type;
2442         wlen = 3;
2443
2444         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2445                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2446                 ret->ser[wlen++] = (char)forder[i];
2447                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2448                 wlen = wlen + fieldlen + 1;
2449         }
2450         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2451                 (long)ret->len, (long)wlen);
2452
2453         return;
2454 }
2455
2456
2457 /*
2458  * Serialize a struct CtdlMessage into the format used on disk and network.
2459  *
2460  * This function loads up a "struct ser_ret" (defined in server.h) which
2461  * contains the length of the serialized message and a pointer to the
2462  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2463  */
2464 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2465                   long Siz)                     /* how many chars ? */
2466 {
2467         size_t wlen;
2468         int i;
2469         static char *forder = FORDER;
2470         char *buf;
2471
2472         /*
2473          * Check for valid message format
2474          */
2475         if (is_valid_message(msg) == 0) {
2476                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2477                 return;
2478         }
2479
2480         buf = (char*) malloc (Siz + 1);
2481
2482         wlen = 3;
2483
2484         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2485                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i],
2486                                    msg->cm_fields[(int)forder[i]]);
2487                         client_write (buf, strlen(buf));
2488                 }
2489
2490         return;
2491 }
2492
2493
2494
2495 /*
2496  * Check to see if any messages already exist in the current room which
2497  * carry the same Exclusive ID as this one.  If any are found, delete them.
2498  */
2499 void ReplicationChecks(struct CtdlMessage *msg) {
2500         long old_msgnum = (-1L);
2501
2502         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2503
2504         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2505                 CC->room.QRname);
2506
2507         /* No exclusive id?  Don't do anything. */
2508         if (msg == NULL) return;
2509         if (msg->cm_fields['E'] == NULL) return;
2510         if (IsEmptyStr(msg->cm_fields['E'])) return;
2511         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2512                 msg->cm_fields['E'], CC->room.QRname);*/
2513
2514         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2515         if (old_msgnum > 0L) {
2516                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2517                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2518         }
2519 }
2520
2521
2522
2523 /*
2524  * Save a message to disk and submit it into the delivery system.
2525  */
2526 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2527                 struct recptypes *recps,        /* recipients (if mail) */
2528                 char *force                     /* force a particular room? */
2529 ) {
2530         char submit_filename[128];
2531         char generated_timestamp[32];
2532         char hold_rm[ROOMNAMELEN];
2533         char actual_rm[ROOMNAMELEN];
2534         char force_room[ROOMNAMELEN];
2535         char content_type[SIZ];                 /* We have to learn this */
2536         char recipient[SIZ];
2537         long newmsgid;
2538         char *mptr = NULL;
2539         struct ctdluser userbuf;
2540         int a, i;
2541         struct MetaData smi;
2542         FILE *network_fp = NULL;
2543         static int seqnum = 1;
2544         struct CtdlMessage *imsg = NULL;
2545         char *instr = NULL;
2546         size_t instr_alloc = 0;
2547         struct ser_ret smr;
2548         char *hold_R, *hold_D;
2549         char *collected_addresses = NULL;
2550         struct addresses_to_be_filed *aptr = NULL;
2551         char *saved_rfc822_version = NULL;
2552         int qualified_for_journaling = 0;
2553         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2554
2555         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2556         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2557
2558         /* If this message has no timestamp, we take the liberty of
2559          * giving it one, right now.
2560          */
2561         if (msg->cm_fields['T'] == NULL) {
2562                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2563                 msg->cm_fields['T'] = strdup(generated_timestamp);
2564         }
2565
2566         /* If this message has no path, we generate one.
2567          */
2568         if (msg->cm_fields['P'] == NULL) {
2569                 if (msg->cm_fields['A'] != NULL) {
2570                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2571                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2572                                 if (isspace(msg->cm_fields['P'][a])) {
2573                                         msg->cm_fields['P'][a] = ' ';
2574                                 }
2575                         }
2576                 }
2577                 else {
2578                         msg->cm_fields['P'] = strdup("unknown");
2579                 }
2580         }
2581
2582         if (force == NULL) {
2583                 strcpy(force_room, "");
2584         }
2585         else {
2586                 strcpy(force_room, force);
2587         }
2588
2589         /* Learn about what's inside, because it's what's inside that counts */
2590         if (msg->cm_fields['M'] == NULL) {
2591                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2592                 return(-2);
2593         }
2594
2595         switch (msg->cm_format_type) {
2596         case 0:
2597                 strcpy(content_type, "text/x-citadel-variformat");
2598                 break;
2599         case 1:
2600                 strcpy(content_type, "text/plain");
2601                 break;
2602         case 4:
2603                 strcpy(content_type, "text/plain");
2604                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2605                 if (mptr != NULL) {
2606                         char *aptr;
2607                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2608                         striplt(content_type);
2609                         aptr = content_type;
2610                         while (!IsEmptyStr(aptr)) {
2611                                 if ((*aptr == ';')
2612                                     || (*aptr == ' ')
2613                                     || (*aptr == 13)
2614                                     || (*aptr == 10)) {
2615                                         *aptr = 0;
2616                                 }
2617                                 else aptr++;
2618                         }
2619                 }
2620         }
2621
2622         /* Goto the correct room */
2623         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2624         strcpy(hold_rm, CCC->room.QRname);
2625         strcpy(actual_rm, CCC->room.QRname);
2626         if (recps != NULL) {
2627                 strcpy(actual_rm, SENTITEMS);
2628         }
2629
2630         /* If the user is a twit, move to the twit room for posting */
2631         if (TWITDETECT) {
2632                 if (CCC->user.axlevel == 2) {
2633                         strcpy(hold_rm, actual_rm);
2634                         strcpy(actual_rm, config.c_twitroom);
2635                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2636                 }
2637         }
2638
2639         /* ...or if this message is destined for Aide> then go there. */
2640         if (!IsEmptyStr(force_room)) {
2641                 strcpy(actual_rm, force_room);
2642         }
2643
2644         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2645         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2646                 /* getroom(&CCC->room, actual_rm); */
2647                 usergoto(actual_rm, 0, 1, NULL, NULL);
2648         }
2649
2650         /*
2651          * If this message has no O (room) field, generate one.
2652          */
2653         if (msg->cm_fields['O'] == NULL) {
2654                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2655         }
2656
2657         /* Perform "before save" hooks (aborting if any return nonzero) */
2658         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2659         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2660
2661         /*
2662          * If this message has an Exclusive ID, and the room is replication
2663          * checking enabled, then do replication checks.
2664          */
2665         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2666                 ReplicationChecks(msg);
2667         }
2668
2669         /* Save it to disk */
2670         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2671         newmsgid = send_message(msg);
2672         if (newmsgid <= 0L) return(-5);
2673
2674         /* Write a supplemental message info record.  This doesn't have to
2675          * be a critical section because nobody else knows about this message
2676          * yet.
2677          */
2678         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2679         memset(&smi, 0, sizeof(struct MetaData));
2680         smi.meta_msgnum = newmsgid;
2681         smi.meta_refcount = 0;
2682         safestrncpy(smi.meta_content_type, content_type,
2683                         sizeof smi.meta_content_type);
2684
2685         /*
2686          * Measure how big this message will be when rendered as RFC822.
2687          * We do this for two reasons:
2688          * 1. We need the RFC822 length for the new metadata record, so the
2689          *    POP and IMAP services don't have to calculate message lengths
2690          *    while the user is waiting (multiplied by potentially hundreds
2691          *    or thousands of messages).
2692          * 2. If journaling is enabled, we will need an RFC822 version of the
2693          *    message to attach to the journalized copy.
2694          */
2695         if (CCC->redirect_buffer != NULL) {
2696                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2697                 abort();
2698         }
2699         CCC->redirect_buffer = malloc(SIZ);
2700         CCC->redirect_len = 0;
2701         CCC->redirect_alloc = SIZ;
2702         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1);
2703         smi.meta_rfc822_length = CCC->redirect_len;
2704         saved_rfc822_version = CCC->redirect_buffer;
2705         CCC->redirect_buffer = NULL;
2706         CCC->redirect_len = 0;
2707         CCC->redirect_alloc = 0;
2708
2709         PutMetaData(&smi);
2710
2711         /* Now figure out where to store the pointers */
2712         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2713
2714         /* If this is being done by the networker delivering a private
2715          * message, we want to BYPASS saving the sender's copy (because there
2716          * is no local sender; it would otherwise go to the Trashcan).
2717          */
2718         if ((!CCC->internal_pgm) || (recps == NULL)) {
2719                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2720                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2721                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2722                 }
2723         }
2724
2725         /* For internet mail, drop a copy in the outbound queue room */
2726         if (recps != NULL)
2727          if (recps->num_internet > 0) {
2728                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2729         }
2730
2731         /* If other rooms are specified, drop them there too. */
2732         if (recps != NULL)
2733          if (recps->num_room > 0)
2734           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2735                 extract_token(recipient, recps->recp_room, i,
2736                                         '|', sizeof recipient);
2737                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2738                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2739         }
2740
2741         /* Bump this user's messages posted counter. */
2742         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2743         lgetuser(&CCC->user, CCC->curr_user);
2744         CCC->user.posted = CCC->user.posted + 1;
2745         lputuser(&CCC->user);
2746
2747         /* If this is private, local mail, make a copy in the
2748          * recipient's mailbox and bump the reference count.
2749          */
2750         if (recps != NULL)
2751          if (recps->num_local > 0)
2752           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2753                 extract_token(recipient, recps->recp_local, i,
2754                                         '|', sizeof recipient);
2755                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2756                         recipient);
2757                 if (getuser(&userbuf, recipient) == 0) {
2758                         // Add a flag so the Funambol module knows its mail
2759                         msg->cm_fields['W'] = strdup(recipient);
2760                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2761                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2762                         BumpNewMailCounter(userbuf.usernum);
2763                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2764                         /* Generate a instruction message for the Funambol notification
2765                          * server, in the same style as the SMTP queue
2766                          */
2767                            instr_alloc = 1024;
2768                            instr = malloc(instr_alloc);
2769                            snprintf(instr, instr_alloc,
2770                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2771                         "bounceto|%s@%s\n",
2772                         SPOOLMIME, newmsgid, (long)time(NULL),
2773                         msg->cm_fields['A'], msg->cm_fields['N']
2774                         );
2775
2776                            imsg = malloc(sizeof(struct CtdlMessage));
2777                            memset(imsg, 0, sizeof(struct CtdlMessage));
2778                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2779                            imsg->cm_anon_type = MES_NORMAL;
2780                            imsg->cm_format_type = FMT_RFC822;
2781                            imsg->cm_fields['A'] = strdup("Citadel");
2782                            imsg->cm_fields['J'] = strdup("do not journal");
2783                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2784                            imsg->cm_fields['W'] = strdup(recipient);
2785                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM);
2786                            CtdlFreeMessage(imsg);
2787                         }
2788                 }
2789                 else {
2790                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2791                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2792                                 newmsgid, 0, msg);
2793                 }
2794         }
2795
2796         /* Perform "after save" hooks */
2797         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2798         PerformMessageHooks(msg, EVT_AFTERSAVE);
2799
2800         /* For IGnet mail, we have to save a new copy into the spooler for
2801          * each recipient, with the R and D fields set to the recipient and
2802          * destination-node.  This has two ugly side effects: all other
2803          * recipients end up being unlisted in this recipient's copy of the
2804          * message, and it has to deliver multiple messages to the same
2805          * node.  We'll revisit this again in a year or so when everyone has
2806          * a network spool receiver that can handle the new style messages.
2807          */
2808         if (recps != NULL)
2809          if (recps->num_ignet > 0)
2810           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2811                 extract_token(recipient, recps->recp_ignet, i,
2812                                 '|', sizeof recipient);
2813
2814                 hold_R = msg->cm_fields['R'];
2815                 hold_D = msg->cm_fields['D'];
2816                 msg->cm_fields['R'] = malloc(SIZ);
2817                 msg->cm_fields['D'] = malloc(128);
2818                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2819                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2820
2821                 serialize_message(&smr, msg);
2822                 if (smr.len > 0) {
2823                         snprintf(submit_filename, sizeof submit_filename,
2824                                          "%s/netmail.%04lx.%04x.%04x",
2825                                          ctdl_netin_dir,
2826                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2827                         network_fp = fopen(submit_filename, "wb+");
2828                         if (network_fp != NULL) {
2829                                 fwrite(smr.ser, smr.len, 1, network_fp);
2830                                 fclose(network_fp);
2831                         }
2832                         free(smr.ser);
2833                 }
2834
2835                 free(msg->cm_fields['R']);
2836                 free(msg->cm_fields['D']);
2837                 msg->cm_fields['R'] = hold_R;
2838                 msg->cm_fields['D'] = hold_D;
2839         }
2840
2841         /* Go back to the room we started from */
2842         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2843         if (strcasecmp(hold_rm, CCC->room.QRname))
2844                 usergoto(hold_rm, 0, 1, NULL, NULL);
2845
2846         /* For internet mail, generate delivery instructions.
2847          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2848          * not happen because the delivery instructions message does not
2849          * contain a recipient.
2850          */
2851         if (recps != NULL)
2852          if (recps->num_internet > 0) {
2853                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2854                 instr_alloc = 1024;
2855                 instr = malloc(instr_alloc);
2856                 snprintf(instr, instr_alloc,
2857                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2858                         "bounceto|%s@%s\n",
2859                         SPOOLMIME, newmsgid, (long)time(NULL),
2860                         msg->cm_fields['A'], msg->cm_fields['N']
2861                 );
2862
2863                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2864                         size_t tmp = strlen(instr);
2865                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2866                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2867                                 instr_alloc = instr_alloc * 2;
2868                                 instr = realloc(instr, instr_alloc);
2869                         }
2870                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2871                 }
2872
2873                 imsg = malloc(sizeof(struct CtdlMessage));
2874                 memset(imsg, 0, sizeof(struct CtdlMessage));
2875                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2876                 imsg->cm_anon_type = MES_NORMAL;
2877                 imsg->cm_format_type = FMT_RFC822;
2878                 imsg->cm_fields['A'] = strdup("Citadel");
2879                 imsg->cm_fields['J'] = strdup("do not journal");
2880                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2881                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2882                 CtdlFreeMessage(imsg);
2883         }
2884
2885         /*
2886          * Any addresses to harvest for someone's address book?
2887          */
2888         if ( (CCC->logged_in) && (recps != NULL) ) {
2889                 collected_addresses = harvest_collected_addresses(msg);
2890         }
2891
2892         if (collected_addresses != NULL) {
2893                 begin_critical_section(S_ATBF);
2894                 aptr = (struct addresses_to_be_filed *)
2895                         malloc(sizeof(struct addresses_to_be_filed));
2896                 aptr->next = atbf;
2897                 MailboxName(actual_rm, sizeof actual_rm,
2898                         &CCC->user, USERCONTACTSROOM);
2899                 aptr->roomname = strdup(actual_rm);
2900                 aptr->collected_addresses = collected_addresses;
2901                 atbf = aptr;
2902                 end_critical_section(S_ATBF);
2903         }
2904
2905         /*
2906          * Determine whether this message qualifies for journaling.
2907          */
2908         if (msg->cm_fields['J'] != NULL) {
2909                 qualified_for_journaling = 0;
2910         }
2911         else {
2912                 if (recps == NULL) {
2913                         qualified_for_journaling = config.c_journal_pubmsgs;
2914                 }
2915                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2916                         qualified_for_journaling = config.c_journal_email;
2917                 }
2918                 else {
2919                         qualified_for_journaling = config.c_journal_pubmsgs;
2920                 }
2921         }
2922
2923         /*
2924          * Do we have to perform journaling?  If so, hand off the saved
2925          * RFC822 version will be handed off to the journaler for background
2926          * submit.  Otherwise, we have to free the memory ourselves.
2927          */
2928         if (saved_rfc822_version != NULL) {
2929                 if (qualified_for_journaling) {
2930                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2931                 }
2932                 else {
2933                         free(saved_rfc822_version);
2934                 }
2935         }
2936
2937         /* Done. */
2938         return(newmsgid);
2939 }
2940
2941
2942
2943
2944
2945 /*
2946  * Convenience function for generating small administrative messages.
2947  */
2948 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text,
2949                         int format_type, char *subject)
2950 {
2951         struct CtdlMessage *msg;
2952         struct recptypes *recp = NULL;
2953
2954         msg = malloc(sizeof(struct CtdlMessage));
2955         memset(msg, 0, sizeof(struct CtdlMessage));
2956         msg->cm_magic = CTDLMESSAGE_MAGIC;
2957         msg->cm_anon_type = MES_NORMAL;
2958         msg->cm_format_type = format_type;
2959
2960         if (from != NULL) {
2961                 msg->cm_fields['A'] = strdup(from);
2962         }
2963         else if (fromaddr != NULL) {
2964                 msg->cm_fields['A'] = strdup(fromaddr);
2965                 if (strchr(msg->cm_fields['A'], '@')) {
2966                         *strchr(msg->cm_fields['A'], '@') = 0;
2967                 }
2968         }
2969         else {
2970                 msg->cm_fields['A'] = strdup("Citadel");
2971         }
2972
2973         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
2974         if (room != NULL) msg->cm_fields['O'] = strdup(room);
2975         msg->cm_fields['N'] = strdup(NODENAME);
2976         if (to != NULL) {
2977                 msg->cm_fields['R'] = strdup(to);
2978                 recp = validate_recipients(to, NULL, 0);
2979         }
2980         if (subject != NULL) {
2981                 msg->cm_fields['U'] = strdup(subject);
2982         }
2983         msg->cm_fields['M'] = strdup(text);
2984
2985         CtdlSubmitMsg(msg, recp, room);
2986         CtdlFreeMessage(msg);
2987         if (recp != NULL) free_recipients(recp);
2988 }
2989
2990
2991
2992 /*
2993  * Back end function used by CtdlMakeMessage() and similar functions
2994  */
2995 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
2996                         size_t maxlen,          /* maximum message length */
2997                         char *exist,            /* if non-null, append to it;
2998                                                    exist is ALWAYS freed  */
2999                         int crlf,               /* CRLF newlines instead of LF */
3000                         int sock                /* socket handle or 0 for this session's client socket */
3001                         ) {
3002         char buf[1024];
3003         int linelen;
3004         size_t message_len = 0;
3005         size_t buffer_len = 0;
3006         char *ptr;
3007         char *m;
3008         int flushing = 0;
3009         int finished = 0;
3010         int dotdot = 0;
3011
3012         if (exist == NULL) {
3013                 m = malloc(4096);
3014                 m[0] = 0;
3015                 buffer_len = 4096;
3016                 message_len = 0;
3017         }
3018         else {
3019                 message_len = strlen(exist);
3020                 buffer_len = message_len + 4096;
3021                 m = realloc(exist, buffer_len);
3022                 if (m == NULL) {
3023                         free(exist);
3024                         return m;
3025                 }
3026         }
3027
3028         /* Do we need to change leading ".." to "." for SMTP escaping? */
3029         if (!strcmp(terminator, ".")) {
3030                 dotdot = 1;
3031         }
3032
3033         /* flush the input if we have nowhere to store it */
3034         if (m == NULL) {
3035                 flushing = 1;
3036         }
3037
3038         /* read in the lines of message text one by one */
3039         do {
3040                 if (sock > 0) {
3041                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3042                 }
3043                 else {
3044                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3045                 }
3046                 if (!strcmp(buf, terminator)) finished = 1;
3047                 if (crlf) {
3048                         strcat(buf, "\r\n");
3049                 }
3050                 else {
3051                         strcat(buf, "\n");
3052                 }
3053
3054                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3055                 if (dotdot) {
3056                         if (!strncmp(buf, "..", 2)) {
3057                                 strcpy(buf, &buf[1]);
3058                         }
3059                 }
3060
3061                 if ( (!flushing) && (!finished) ) {
3062                         /* Measure the line */
3063                         linelen = strlen(buf);
3064
3065                         /* augment the buffer if we have to */
3066                         if ((message_len + linelen) >= buffer_len) {
3067                                 ptr = realloc(m, (buffer_len * 2) );
3068                                 if (ptr == NULL) {      /* flush if can't allocate */
3069                                         flushing = 1;
3070                                 } else {
3071                                         buffer_len = (buffer_len * 2);
3072                                         m = ptr;
3073                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3074                                 }
3075                         }
3076
3077                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3078                         * using functions like strcat() and strlen() because they
3079                         * traverse the entire buffer upon every call, and doing that
3080                         * for a multi-megabyte message slows it down beyond usability.
3081                         */
3082                         strcpy(&m[message_len], buf);
3083                         message_len += linelen;
3084                 }
3085
3086                 /* if we've hit the max msg length, flush the rest */
3087                 if (message_len >= maxlen) flushing = 1;
3088
3089         } while (!finished);
3090         return(m);
3091 }
3092
3093
3094
3095
3096 /*
3097  * Build a binary message to be saved on disk.
3098  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3099  * will become part of the message.  This means you are no longer
3100  * responsible for managing that memory -- it will be freed along with
3101  * the rest of the fields when CtdlFreeMessage() is called.)
3102  */
3103
3104 struct CtdlMessage *CtdlMakeMessage(
3105         struct ctdluser *author,        /* author's user structure */
3106         char *recipient,                /* NULL if it's not mail */
3107         char *recp_cc,                  /* NULL if it's not mail */
3108         char *room,                     /* room where it's going */
3109         int type,                       /* see MES_ types in header file */
3110         int format_type,                /* variformat, plain text, MIME... */
3111         char *fake_name,                /* who we're masquerading as */
3112         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3113         char *subject,                  /* Subject (optional) */
3114         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3115         char *preformatted_text,        /* ...or NULL to read text from client */
3116         char *references                /* Thread references */
3117 ) {
3118         char dest_node[256];
3119         char buf[1024];
3120         struct CtdlMessage *msg;
3121
3122         msg = malloc(sizeof(struct CtdlMessage));
3123         memset(msg, 0, sizeof(struct CtdlMessage));
3124         msg->cm_magic = CTDLMESSAGE_MAGIC;
3125         msg->cm_anon_type = type;
3126         msg->cm_format_type = format_type;
3127
3128         /* Don't confuse the poor folks if it's not routed mail. */
3129         strcpy(dest_node, "");
3130
3131         striplt(recipient);
3132         striplt(recp_cc);
3133
3134         /* Path or Return-Path */
3135         if (my_email == NULL) my_email = "";
3136
3137         if (!IsEmptyStr(my_email)) {
3138                 msg->cm_fields['P'] = strdup(my_email);
3139         }
3140         else {
3141                 snprintf(buf, sizeof buf, "%s", author->fullname);
3142                 msg->cm_fields['P'] = strdup(buf);
3143         }
3144         convert_spaces_to_underscores(msg->cm_fields['P']);
3145
3146         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3147         msg->cm_fields['T'] = strdup(buf);
3148
3149         if (fake_name[0])                                       /* author */
3150                 msg->cm_fields['A'] = strdup(fake_name);
3151         else
3152                 msg->cm_fields['A'] = strdup(author->fullname);
3153
3154         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3155                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3156         }
3157         else {
3158                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3159         }
3160
3161         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3162         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3163
3164         if (recipient[0] != 0) {
3165                 msg->cm_fields['R'] = strdup(recipient);
3166         }
3167         if (recp_cc[0] != 0) {
3168                 msg->cm_fields['Y'] = strdup(recp_cc);
3169         }
3170         if (dest_node[0] != 0) {
3171                 msg->cm_fields['D'] = strdup(dest_node);
3172         }
3173
3174         if (!IsEmptyStr(my_email)) {
3175                 msg->cm_fields['F'] = strdup(my_email);
3176         }
3177         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3178                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3179         }
3180
3181         if (subject != NULL) {
3182                 long length;
3183                 striplt(subject);
3184                 length = strlen(subject);
3185                 if (length > 0) {
3186                         long i;
3187                         long IsAscii;
3188                         IsAscii = -1;
3189                         i = 0;
3190                         while ((subject[i] != '\0') &&
3191                                (IsAscii = isascii(subject[i]) != 0 ))
3192                                 i++;
3193                         if (IsAscii != 0)
3194                                 msg->cm_fields['U'] = strdup(subject);
3195                         else /* ok, we've got utf8 in the string. */
3196                         {
3197                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3198                         }
3199
3200                 }
3201         }
3202
3203         if (supplied_euid != NULL) {
3204                 msg->cm_fields['E'] = strdup(supplied_euid);
3205         }
3206
3207         if (references != NULL) {
3208                 if (!IsEmptyStr(references)) {
3209                         msg->cm_fields['W'] = strdup(references);
3210                 }
3211         }
3212
3213         if (preformatted_text != NULL) {
3214                 msg->cm_fields['M'] = preformatted_text;
3215         }
3216         else {
3217                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3218         }
3219
3220         return(msg);
3221 }
3222
3223
3224 /*
3225  * Check to see whether we have permission to post a message in the current
3226  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3227  * returns 0 on success.
3228  */
3229 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf,
3230                                           size_t n,
3231                                           const char* RemoteIdentifier,
3232                                           int PostPublic) {
3233         int ra;
3234
3235         if (!(CC->logged_in) &&
3236             (PostPublic == POST_LOGGED_IN)) {
3237                 snprintf(errmsgbuf, n, "Not logged in.");
3238                 return (ERROR + NOT_LOGGED_IN);
3239         }
3240         else if (PostPublic == CHECK_EXISTANCE) {
3241                 return (0); // We're Evaling whether a recipient exists
3242         }
3243         else if (!(CC->logged_in)) {
3244
3245                 if ((CC->room.QRflags & QR_READONLY)) {
3246                         snprintf(errmsgbuf, n, "Not logged in.");
3247                         return (ERROR + NOT_LOGGED_IN);
3248                 }
3249                 if (CC->room.QRflags2 & QR2_MODERATED) {
3250                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3251                         return (ERROR + NOT_LOGGED_IN);
3252                 }
3253                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3254                         SpoolControl *sc;
3255                         char filename[SIZ];
3256                         int found;
3257
3258                         if (RemoteIdentifier == NULL)
3259                         {
3260                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3261                                 return (ERROR + USERNAME_REQUIRED);
3262                         }
3263
3264                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3265                         begin_critical_section(S_NETCONFIGS);
3266                         if (!read_spoolcontrol_file(&sc, filename))
3267                         {
3268                                 end_critical_section(S_NETCONFIGS);
3269                                 snprintf(errmsgbuf, n,
3270                                         "This mailing list only accepts posts from subscribers.");
3271                                 return (ERROR + NO_SUCH_USER);
3272                         }
3273                         end_critical_section(S_NETCONFIGS);
3274                         found = is_recipient (sc, RemoteIdentifier);
3275                         free_spoolcontrol_struct(&sc);
3276                         if (found) {
3277                                 return (0);
3278                         }
3279                         else {
3280                                 snprintf(errmsgbuf, n,
3281                                         "This mailing list only accepts posts from subscribers.");
3282                                 return (ERROR + NO_SUCH_USER);
3283                         }
3284                 }
3285                 return (0);
3286
3287         }
3288
3289         if ((CC->user.axlevel < 2)
3290             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3291                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3292                                 "(except in %s> to sysop)", MAILROOM);
3293                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3294         }
3295
3296         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3297         if (!(ra & UA_POSTALLOWED)) {
3298                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3299                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3300         }
3301
3302         strcpy(errmsgbuf, "Ok");
3303         return(0);
3304 }
3305
3306
3307 /*
3308  * Check to see if the specified user has Internet mail permission
3309  * (returns nonzero if permission is granted)
3310  */
3311 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3312
3313         /* Do not allow twits to send Internet mail */
3314         if (who->axlevel <= 2) return(0);
3315
3316         /* Globally enabled? */
3317         if (config.c_restrict == 0) return(1);
3318
3319         /* User flagged ok? */
3320         if (who->flags & US_INTERNET) return(2);
3321
3322         /* Aide level access? */
3323         if (who->axlevel >= 6) return(3);
3324
3325         /* No mail for you! */
3326         return(0);
3327 }
3328
3329
3330 /*
3331  * Validate recipients, count delivery types and errors, and handle aliasing
3332  * FIXME check for dupes!!!!!
3333  *
3334  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
3335  * were specified, or the number of addresses found invalid.
3336  *
3337  * Caller needs to free the result using free_recipients()
3338  */
3339 struct recptypes *validate_recipients(char *supplied_recipients,
3340                                       const char *RemoteIdentifier,
3341                                       int Flags) {
3342         struct recptypes *ret;
3343         char *recipients = NULL;
3344         char this_recp[256];
3345         char this_recp_cooked[256];
3346         char append[SIZ];
3347         int num_recps = 0;
3348         int i, j;
3349         int mailtype;
3350         int invalid;
3351         struct ctdluser tempUS;
3352         struct ctdlroom tempQR;
3353         struct ctdlroom tempQR2;
3354         int err = 0;
3355         char errmsg[SIZ];
3356         int in_quotes = 0;
3357
3358         /* Initialize */
3359         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3360         if (ret == NULL) return(NULL);
3361
3362         /* Set all strings to null and numeric values to zero */
3363         memset(ret, 0, sizeof(struct recptypes));
3364
3365         if (supplied_recipients == NULL) {
3366                 recipients = strdup("");
3367         }
3368         else {
3369                 recipients = strdup(supplied_recipients);
3370         }
3371
3372         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3373          * actually need, but it's healthier for the heap than doing lots of tiny
3374          * realloc() calls instead.
3375          */
3376
3377         ret->errormsg = malloc(strlen(recipients) + 1024);
3378         ret->recp_local = malloc(strlen(recipients) + 1024);
3379         ret->recp_internet = malloc(strlen(recipients) + 1024);
3380         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3381         ret->recp_room = malloc(strlen(recipients) + 1024);
3382         ret->display_recp = malloc(strlen(recipients) + 1024);
3383
3384         ret->errormsg[0] = 0;
3385         ret->recp_local[0] = 0;
3386         ret->recp_internet[0] = 0;
3387         ret->recp_ignet[0] = 0;
3388         ret->recp_room[0] = 0;
3389         ret->display_recp[0] = 0;
3390
3391         ret->recptypes_magic = RECPTYPES_MAGIC;
3392
3393         /* Change all valid separator characters to commas */
3394         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3395                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3396                         recipients[i] = ',';
3397                 }
3398         }
3399
3400         /* Now start extracting recipients... */
3401
3402         while (!IsEmptyStr(recipients)) {
3403
3404                 for (i=0; i<=strlen(recipients); ++i) {
3405                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3406                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3407                                 safestrncpy(this_recp, recipients, i+1);
3408                                 this_recp[i] = 0;
3409                                 if (recipients[i] == ',') {
3410                                         strcpy(recipients, &recipients[i+1]);
3411                                 }
3412                                 else {
3413                                         strcpy(recipients, "");
3414                                 }
3415                                 break;
3416                         }
3417                 }
3418
3419                 striplt(this_recp);
3420                 if (IsEmptyStr(this_recp))
3421                         break;
3422                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3423                 ++num_recps;
3424                 mailtype = alias(this_recp);
3425                 mailtype = alias(this_recp);
3426                 mailtype = alias(this_recp);
3427                 j = 0;
3428                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3429                         if (this_recp[j]=='_') {
3430                                 this_recp_cooked[j] = ' ';
3431                         }
3432                         else {
3433                                 this_recp_cooked[j] = this_recp[j];
3434                         }
3435                 }
3436                 this_recp_cooked[j] = '\0';
3437                 invalid = 0;
3438                 errmsg[0] = 0;
3439                 switch(mailtype) {
3440                         case MES_LOCAL:
3441                                 if (!strcasecmp(this_recp, "sysop")) {
3442                                         ++ret->num_room;
3443                                         strcpy(this_recp, config.c_aideroom);
3444                                         if (!IsEmptyStr(ret->recp_room)) {
3445                                                 strcat(ret->recp_room, "|");
3446                                         }
3447                                         strcat(ret->recp_room, this_recp);
3448                                 }
3449                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3450                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3451
3452                                         /* Save room so we can restore it later */
3453                                         tempQR2 = CC->room;
3454                                         CC->room = tempQR;
3455
3456                                         /* Check permissions to send mail to this room */
3457                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg,
3458                                                                                     sizeof errmsg,
3459                                                                                     RemoteIdentifier,
3460                                                                                     Flags
3461                                         );
3462                                         if (err)
3463                                         {
3464                                                 ++ret->num_error;
3465                                                 invalid = 1;
3466                                         }
3467                                         else {
3468                                                 ++ret->num_room;
3469                                                 if (!IsEmptyStr(ret->recp_room)) {
3470                                                         strcat(ret->recp_room, "|");
3471                                                 }
3472                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3473                                         }
3474
3475                                         /* Restore room in case something needs it */
3476                                         CC->room = tempQR2;
3477
3478                                 }
3479                                 else if (getuser(&tempUS, this_recp) == 0) {
3480                                         ++ret->num_local;
3481                                         strcpy(this_recp, tempUS.fullname);
3482                                         if (!IsEmptyStr(ret->recp_local)) {
3483                                                 strcat(ret->recp_local, "|");
3484                                         }
3485                                         strcat(ret->recp_local, this_recp);
3486                                 }
3487                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3488                                         ++ret->num_local;
3489                                         strcpy(this_recp, tempUS.fullname);
3490                                         if (!IsEmptyStr(ret->recp_local)) {
3491                                                 strcat(ret->recp_local, "|");
3492                                         }
3493                                         strcat(ret->recp_local, this_recp);
3494                                 }
3495                                 else {
3496                                         ++ret->num_error;
3497                                         invalid = 1;
3498                                 }
3499                                 break;
3500                         case MES_INTERNET:
3501                                 /* Yes, you're reading this correctly: if the target
3502                                  * domain points back to the local system or an attached
3503                                  * Citadel directory, the address is invalid.  That's
3504                                  * because if the address were valid, we would have
3505                                  * already translated it to a local address by now.
3506                                  */
3507                                 if (IsDirectory(this_recp, 0)) {
3508                                         ++ret->num_error;
3509                                         invalid = 1;
3510                                 }
3511                                 else {
3512                                         ++ret->num_internet;
3513                                         if (!IsEmptyStr(ret->recp_internet)) {
3514                                                 strcat(ret->recp_internet, "|");
3515                                         }
3516                                         strcat(ret->recp_internet, this_recp);
3517                                 }
3518                                 break;
3519                         case MES_IGNET:
3520                                 ++ret->num_ignet;
3521                                 if (!IsEmptyStr(ret->recp_ignet)) {
3522                                         strcat(ret->recp_ignet, "|");
3523                                 }
3524                                 strcat(ret->recp_ignet, this_recp);
3525                                 break;
3526                         case MES_ERROR:
3527                                 ++ret->num_error;
3528                                 invalid = 1;
3529                                 break;
3530                 }
3531                 if (invalid) {
3532                         if (IsEmptyStr(errmsg)) {
3533                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3534                         }
3535                         else {
3536                                 snprintf(append, sizeof append, "%s", errmsg);
3537                         }
3538                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3539                                 if (!IsEmptyStr(ret->errormsg)) {
3540                                         strcat(ret->errormsg, "; ");
3541                                 }
3542                                 strcat(ret->errormsg, append);
3543                         }
3544                 }
3545                 else {
3546                         if (IsEmptyStr(ret->display_recp)) {
3547                                 strcpy(append, this_recp);
3548                         }
3549                         else {
3550                                 snprintf(append, sizeof append, ", %s", this_recp);
3551                         }
3552                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3553                                 strcat(ret->display_recp, append);
3554                         }
3555                 }
3556         }
3557
3558         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3559            ret->num_room + ret->num_error) == 0) {
3560                 ret->num_error = (-1);
3561                 strcpy(ret->errormsg, "No recipients specified.");
3562         }
3563
3564         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3565         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3566         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3567         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3568         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3569         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3570
3571         free(recipients);
3572         return(ret);
3573 }
3574
3575
3576 /*
3577  * Destructor for struct recptypes
3578  */
3579 void free_recipients(struct recptypes *valid) {
3580
3581         if (valid == NULL) {
3582                 return;
3583         }
3584
3585         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3586                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3587                 abort();
3588         }
3589
3590         if (valid->errormsg != NULL)            free(valid->errormsg);
3591         if (valid->recp_local != NULL)          free(valid->recp_local);
3592         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3593         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3594         if (valid->recp_room != NULL)           free(valid->recp_room);
3595         if (valid->display_recp != NULL)        free(valid->display_recp);
3596         free(valid);
3597 }
3598
3599
3600
3601 /*
3602  * message entry  -  mode 0 (normal)
3603  */
3604 void cmd_ent0(char *entargs)
3605 {
3606         int post = 0;
3607         char recp[SIZ];
3608         char cc[SIZ];
3609         char bcc[SIZ];
3610         char supplied_euid[128];
3611         int anon_flag = 0;
3612         int format_type = 0;
3613         char newusername[256];
3614         char newuseremail[256];
3615         struct CtdlMessage *msg;
3616         int anonymous = 0;
3617         char errmsg[SIZ];
3618         int err = 0;
3619         struct recptypes *valid = NULL;
3620         struct recptypes *valid_to = NULL;
3621         struct recptypes *valid_cc = NULL;
3622         struct recptypes *valid_bcc = NULL;
3623         char subject[SIZ];
3624         int subject_required = 0;
3625         int do_confirm = 0;
3626         long msgnum;
3627         int i, j;
3628         char buf[256];
3629         int newuseremail_ok = 0;
3630         char references[SIZ];
3631         char *ptr;
3632
3633         unbuffer_output();
3634
3635         post = extract_int(entargs, 0);
3636         extract_token(recp, entargs, 1, '|', sizeof recp);
3637         anon_flag = extract_int(entargs, 2);
3638         format_type = extract_int(entargs, 3);
3639         extract_token(subject, entargs, 4, '|', sizeof subject);
3640         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3641         do_confirm = extract_int(entargs, 6);
3642         extract_token(cc, entargs, 7, '|', sizeof cc);
3643         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3644         switch(CC->room.QRdefaultview) {
3645                 case VIEW_NOTES:
3646                 case VIEW_WIKI:
3647                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3648                         break;
3649                 default:
3650                         supplied_euid[0] = 0;
3651                         break;
3652         }
3653         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3654         extract_token(references, entargs, 11, '|', sizeof references);
3655         for (ptr=references; *ptr != 0; ++ptr) {
3656                 if (*ptr == '!') *ptr = '|';
3657         }
3658
3659         /* first check to make sure the request is valid. */
3660
3661         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3662         if (err)
3663         {
3664                 cprintf("%d %s\n", err, errmsg);
3665                 return;
3666         }
3667
3668         /* Check some other permission type things. */
3669
3670         if (IsEmptyStr(newusername)) {
3671                 strcpy(newusername, CC->user.fullname);
3672         }
3673         if (  (CC->user.axlevel < 6)
3674            && (strcasecmp(newusername, CC->user.fullname))
3675            && (strcasecmp(newusername, CC->cs_inet_fn))
3676         ) {
3677                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3678                         ERROR + HIGHER_ACCESS_REQUIRED,
3679                         newusername
3680                 );
3681                 return;
3682         }
3683
3684
3685         if (IsEmptyStr(newuseremail)) {
3686                 newuseremail_ok = 1;
3687         }
3688
3689         if (!IsEmptyStr(newuseremail)) {
3690                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3691                         newuseremail_ok = 1;
3692                 }
3693                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3694                         j = num_tokens(CC->cs_inet_other_emails, '|');
3695                         for (i=0; i<j; ++i) {
3696                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3697                                 if (!strcasecmp(newuseremail, buf)) {
3698                                         newuseremail_ok = 1;
3699                                 }
3700                         }
3701                 }
3702         }
3703
3704         if (!newuseremail_ok) {
3705                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3706                         ERROR + HIGHER_ACCESS_REQUIRED,
3707                         newuseremail
3708                 );
3709                 return;
3710         }
3711
3712         CC->cs_flags |= CS_POSTING;
3713
3714         /* In mailbox rooms we have to behave a little differently --
3715          * make sure the user has specified at least one recipient.  Then
3716          * validate the recipient(s).  We do this for the Mail> room, as
3717          * well as any room which has the "Mailbox" view set.
3718          */
3719
3720         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3721            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3722         ) {
3723                 if (CC->user.axlevel < 2) {
3724                         strcpy(recp, "sysop");
3725                         strcpy(cc, "");
3726                         strcpy(bcc, "");
3727                 }
3728
3729                 valid_to = validate_recipients(recp, NULL, 0);
3730                 if (valid_to->num_error > 0) {
3731                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3732                         free_recipients(valid_to);
3733                         return;
3734                 }
3735
3736                 valid_cc = validate_recipients(cc, NULL, 0);
3737                 if (valid_cc->num_error > 0) {
3738                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3739                         free_recipients(valid_to);
3740                         free_recipients(valid_cc);
3741                         return;
3742                 }
3743
3744                 valid_bcc = validate_recipients(bcc, NULL, 0);
3745                 if (valid_bcc->num_error > 0) {
3746                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3747                         free_recipients(valid_to);
3748                         free_recipients(valid_cc);
3749                         free_recipients(valid_bcc);
3750                         return;
3751                 }
3752
3753                 /* Recipient required, but none were specified */
3754                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3755                         free_recipients(valid_to);
3756                         free_recipients(valid_cc);
3757                         free_recipients(valid_bcc);
3758                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3759                         return;
3760                 }
3761
3762                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3763                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3764                                 cprintf("%d You do not have permission "
3765                                         "to send Internet mail.\n",
3766                                         ERROR + HIGHER_ACCESS_REQUIRED);
3767                                 free_recipients(valid_to);
3768                                 free_recipients(valid_cc);
3769                                 free_recipients(valid_bcc);
3770                                 return;
3771                         }
3772                 }
3773
3774                 if ( ( (valid_to->num_internet + valid_to->num_ignet + valid_cc->num_internet + valid_cc->num_ignet + valid_bcc->num_internet + valid_bcc->num_ignet) > 0)
3775                    && (CC->user.axlevel < 4) ) {
3776                         cprintf("%d Higher access required for network mail.\n",
3777                                 ERROR + HIGHER_ACCESS_REQUIRED);
3778                         free_recipients(valid_to);
3779                         free_recipients(valid_cc);
3780                         free_recipients(valid_bcc);
3781                         return;
3782                 }
3783
3784                 if ((RESTRICT_INTERNET == 1)
3785                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3786                     && ((CC->user.flags & US_INTERNET) == 0)
3787                     && (!CC->internal_pgm)) {
3788                         cprintf("%d You don't have access to Internet mail.\n",
3789                                 ERROR + HIGHER_ACCESS_REQUIRED);
3790                         free_recipients(valid_to);
3791                         free_recipients(valid_cc);
3792                         free_recipients(valid_bcc);
3793                         return;
3794                 }
3795
3796         }
3797
3798         /* Is this a room which has anonymous-only or anonymous-option? */
3799         anonymous = MES_NORMAL;
3800         if (CC->room.QRflags & QR_ANONONLY) {
3801                 anonymous = MES_ANONONLY;
3802         }
3803         if (CC->room.QRflags & QR_ANONOPT) {
3804                 if (anon_flag == 1) {   /* only if the user requested it */
3805                         anonymous = MES_ANONOPT;
3806                 }
3807         }
3808
3809         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3810                 recp[0] = 0;
3811         }
3812
3813         /* Recommend to the client that the use of a message subject is
3814          * strongly recommended in this room, if either the SUBJECTREQ flag
3815          * is set, or if there is one or more Internet email recipients.
3816          */
3817         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3818         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3819         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3820         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3821
3822         /* If we're only checking the validity of the request, return
3823          * success without creating the message.
3824          */
3825         if (post == 0) {
3826                 cprintf("%d %s|%d\n", CIT_OK,
3827                         ((valid_to != NULL) ? valid_to->display_recp : ""),
3828                         subject_required);
3829                 free_recipients(valid_to);
3830                 free_recipients(valid_cc);
3831                 free_recipients(valid_bcc);
3832                 return;
3833         }
3834
3835         /* We don't need these anymore because we'll do it differently below */
3836         free_recipients(valid_to);
3837         free_recipients(valid_cc);
3838         free_recipients(valid_bcc);
3839
3840         /* Read in the message from the client. */
3841         if (do_confirm) {
3842                 cprintf("%d send message\n", START_CHAT_MODE);
3843         } else {
3844                 cprintf("%d send message\n", SEND_LISTING);
3845         }
3846
3847         msg = CtdlMakeMessage(&CC->user, recp, cc,
3848                 CC->room.QRname, anonymous, format_type,
3849                 newusername, newuseremail, subject,
3850                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3851                 NULL, references);
3852
3853         /* Put together one big recipients struct containing to/cc/bcc all in
3854          * one.  This is for the envelope.
3855          */
3856         char *all_recps = malloc(SIZ * 3);
3857         strcpy(all_recps, recp);
3858         if (!IsEmptyStr(cc)) {
3859                 if (!IsEmptyStr(all_recps)) {
3860                         strcat(all_recps, ",");
3861                 }
3862                 strcat(all_recps, cc);
3863         }
3864         if (!IsEmptyStr(bcc)) {
3865                 if (!IsEmptyStr(all_recps)) {
3866                         strcat(all_recps, ",");
3867                 }
3868                 strcat(all_recps, bcc);
3869         }
3870         if (!IsEmptyStr(all_recps)) {
3871                 valid = validate_recipients(all_recps, NULL, 0);
3872         }
3873         else {
3874                 valid = NULL;
3875         }
3876         free(all_recps);
3877
3878         if (msg != NULL) {
3879                 msgnum = CtdlSubmitMsg(msg, valid, "");
3880
3881                 if (do_confirm) {
3882                         cprintf("%ld\n", msgnum);
3883                         if (msgnum >= 0L) {
3884                                 cprintf("Message accepted.\n");
3885                         }
3886                         else {
3887                                 cprintf("Internal error.\n");
3888                         }
3889                         if (msg->cm_fields['E'] != NULL) {
3890                                 cprintf("%s\n", msg->cm_fields['E']);
3891                         } else {
3892                                 cprintf("\n");
3893                         }
3894                         cprintf("000\n");
3895                 }
3896
3897                 CtdlFreeMessage(msg);
3898         }
3899         if (valid != NULL) {
3900                 free_recipients(valid);
3901         }
3902         return;
3903 }
3904
3905
3906
3907 /*
3908  * API function to delete messages which match a set of criteria
3909  * (returns the actual number of messages deleted)
3910  */
3911 int CtdlDeleteMessages(char *room_name,         /* which room */
3912                         long *dmsgnums,         /* array of msg numbers to be deleted */
3913                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3914                         char *content_type      /* or "" for any.  regular expressions expected. */
3915 )
3916 {
3917         struct ctdlroom qrbuf;
3918         struct cdbdata *cdbfr;
3919         long *msglist = NULL;
3920         long *dellist = NULL;
3921         int num_msgs = 0;
3922         int i, j;
3923         int num_deleted = 0;
3924         int delete_this;
3925         struct MetaData smi;
3926         regex_t re;
3927         regmatch_t pm;
3928         int need_to_free_re = 0;
3929
3930         if (content_type) if (!IsEmptyStr(content_type)) {
3931                 regcomp(&re, content_type, 0);
3932                 need_to_free_re = 1;
3933         }
3934         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3935                 room_name, num_dmsgnums, content_type);
3936
3937         /* get room record, obtaining a lock... */
3938         if (lgetroom(&qrbuf, room_name) != 0) {
3939                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3940                         room_name);
3941                 if (need_to_free_re) regfree(&re);
3942                 return (0);     /* room not found */
3943         }
3944         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3945
3946         if (cdbfr != NULL) {
3947                 dellist = malloc(cdbfr->len);
3948                 msglist = (long *) cdbfr->ptr;
3949                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
3950                 num_msgs = cdbfr->len / sizeof(long);
3951                 cdb_free(cdbfr);
3952         }
3953         if (num_msgs > 0) {
3954                 for (i = 0; i < num_msgs; ++i) {
3955                         delete_this = 0x00;
3956
3957                         /* Set/clear a bit for each criterion */
3958
3959                         /* 0 messages in the list or a null list means that we are
3960                          * interested in deleting any messages which meet the other criteria.
3961                          */
3962                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
3963                                 delete_this |= 0x01;
3964                         }
3965                         else {
3966                                 for (j=0; j<num_dmsgnums; ++j) {
3967                                         if (msglist[i] == dmsgnums[j]) {
3968                                                 delete_this |= 0x01;
3969                                         }
3970                                 }
3971                         }
3972
3973                         if (IsEmptyStr(content_type)) {
3974                                 delete_this |= 0x02;
3975                         } else {
3976                                 GetMetaData(&smi, msglist[i]);
3977                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
3978                                         delete_this |= 0x02;
3979                                 }
3980                         }
3981
3982                         /* Delete message only if all bits are set */
3983                         if (delete_this == 0x03) {
3984                                 dellist[num_deleted++] = msglist[i];
3985                                 msglist[i] = 0L;
3986                         }
3987                 }
3988
3989                 num_msgs = sort_msglist(msglist, num_msgs);
3990                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
3991                           msglist, (int)(num_msgs * sizeof(long)));
3992
3993                 qrbuf.QRhighest = msglist[num_msgs - 1];
3994         }
3995         lputroom(&qrbuf);
3996
3997         /* Go through the messages we pulled out of the index, and decrement
3998          * their reference counts by 1.  If this is the only room the message
3999          * was in, the reference count will reach zero and the message will
4000          * automatically be deleted from the database.  We do this in a
4001          * separate pass because there might be plug-in hooks getting called,
4002          * and we don't want that happening during an S_ROOMS critical
4003          * section.
4004          */
4005         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4006                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4007                 AdjRefCount(dellist[i], -1);
4008         }
4009
4010         /* Now free the memory we used, and go away. */
4011         if (msglist != NULL) free(msglist);
4012         if (dellist != NULL) free(dellist);
4013         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4014         if (need_to_free_re) regfree(&re);
4015         return (num_deleted);
4016 }
4017
4018
4019
4020 /*
4021  * Check whether the current user has permission to delete messages from
4022  * the current room (returns 1 for yes, 0 for no)
4023  */
4024 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4025         int ra;
4026         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4027         if (ra & UA_DELETEALLOWED) return(1);
4028         return(0);
4029 }
4030
4031
4032
4033
4034 /*
4035  * Delete message from current room
4036  */
4037 void cmd_dele(char *args)
4038 {
4039         int num_deleted;
4040         int i;
4041         char msgset[SIZ];
4042         char msgtok[32];
4043         long *msgs;
4044         int num_msgs = 0;
4045
4046         extract_token(msgset, args, 0, '|', sizeof msgset);
4047         num_msgs = num_tokens(msgset, ',');
4048         if (num_msgs < 1) {
4049                 cprintf("%d Nothing to do.\n", CIT_OK);
4050                 return;
4051         }
4052
4053         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4054                 cprintf("%d Higher access required.\n",
4055                         ERROR + HIGHER_ACCESS_REQUIRED);
4056                 return;
4057         }
4058
4059         /*
4060          * Build our message set to be moved/copied
4061          */
4062         msgs = malloc(num_msgs * sizeof(long));
4063         for (i=0; i<num_msgs; ++i) {
4064                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4065                 msgs[i] = atol(msgtok);
4066         }
4067
4068         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4069         free(msgs);
4070
4071         if (num_deleted) {
4072                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4073                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4074         } else {
4075                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4076         }
4077 }
4078
4079
4080 /*
4081  * Back end API function for moves and deletes (multiple messages)
4082  */
4083 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4084         int err;
4085
4086         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4087         if (err != 0) return(err);
4088
4089         return(0);
4090 }
4091
4092
4093
4094
4095 /*
4096  * move or copy a message to another room
4097  */
4098 void cmd_move(char *args)
4099 {
4100         char msgset[SIZ];
4101         char msgtok[32];
4102         long *msgs;
4103         int num_msgs = 0;
4104
4105         char targ[ROOMNAMELEN];
4106         struct ctdlroom qtemp;
4107         int err;
4108         int is_copy = 0;
4109         int ra;
4110         int permit = 0;
4111         int i;
4112
4113         extract_token(msgset, args, 0, '|', sizeof msgset);
4114         num_msgs = num_tokens(msgset, ',');
4115         if (num_msgs < 1) {
4116                 cprintf("%d Nothing to do.\n", CIT_OK);
4117                 return;
4118         }
4119
4120         extract_token(targ, args, 1, '|', sizeof targ);
4121         convert_room_name_macros(targ, sizeof targ);
4122         targ[ROOMNAMELEN - 1] = 0;
4123         is_copy = extract_int(args, 2);
4124
4125         if (getroom(&qtemp, targ) != 0) {
4126                 cprintf("%d '%s' does not exist.\n",
4127                         ERROR + ROOM_NOT_FOUND, targ);
4128                 return;
4129         }
4130
4131         getuser(&CC->user, CC->curr_user);
4132         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4133
4134         /* Check for permission to perform this operation.
4135          * Remember: "CC->room" is source, "qtemp" is target.
4136          */
4137         permit = 0;
4138
4139         /* Aides can move/copy */
4140         if (CC->user.axlevel >= 6) permit = 1;
4141
4142         /* Room aides can move/copy */
4143         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4144
4145         /* Permit move/copy from personal rooms */
4146         if ((CC->room.QRflags & QR_MAILBOX)
4147            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4148
4149         /* Permit only copy from public to personal room */
4150         if ( (is_copy)
4151            && (!(CC->room.QRflags & QR_MAILBOX))
4152            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4153
4154         /* Permit message removal from collaborative delete rooms */
4155         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4156
4157         /* Users allowed to post into the target room may move into it too. */
4158         if ((CC->room.QRflags & QR_MAILBOX) &&
4159             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4160
4161         /* User must have access to target room */
4162         if (!(ra & UA_KNOWN))  permit = 0;
4163
4164         if (!permit) {
4165                 cprintf("%d Higher access required.\n",
4166                         ERROR + HIGHER_ACCESS_REQUIRED);
4167                 return;
4168         }
4169
4170         /*
4171          * Build our message set to be moved/copied
4172          */
4173         msgs = malloc(num_msgs * sizeof(long));
4174         for (i=0; i<num_msgs; ++i) {
4175                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4176                 msgs[i] = atol(msgtok);
4177         }
4178
4179         /*
4180          * Do the copy
4181          */
4182         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4183         if (err != 0) {
4184                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4185                         err, targ, err);
4186                 free(msgs);
4187                 return;
4188         }
4189
4190         /* Now delete the message from the source room,
4191          * if this is a 'move' rather than a 'copy' operation.
4192          */
4193         if (is_copy == 0) {
4194                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4195         }
4196         free(msgs);
4197
4198         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4199 }
4200
4201
4202
4203 /*
4204  * GetMetaData()  -  Get the supplementary record for a message
4205  */
4206 void GetMetaData(struct MetaData *smibuf, long msgnum)
4207 {
4208
4209         struct cdbdata *cdbsmi;
4210         long TheIndex;
4211
4212         memset(smibuf, 0, sizeof(struct MetaData));
4213         smibuf->meta_msgnum = msgnum;
4214         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4215
4216         /* Use the negative of the message number for its supp record index */
4217         TheIndex = (0L - msgnum);
4218
4219         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4220         if (cdbsmi == NULL) {
4221                 return;         /* record not found; go with defaults */
4222         }
4223         memcpy(smibuf, cdbsmi->ptr,
4224                ((cdbsmi->len > sizeof(struct MetaData)) ?
4225                 sizeof(struct MetaData) : cdbsmi->len));
4226         cdb_free(cdbsmi);
4227         return;
4228 }
4229
4230
4231 /*
4232  * PutMetaData()  -  (re)write supplementary record for a message
4233  */
4234 void PutMetaData(struct MetaData *smibuf)
4235 {
4236         long TheIndex;
4237
4238         /* Use the negative of the message number for the metadata db index */
4239         TheIndex = (0L - smibuf->meta_msgnum);
4240
4241         cdb_store(CDB_MSGMAIN,
4242                   &TheIndex, (int)sizeof(long),
4243                   smibuf, (int)sizeof(struct MetaData));
4244
4245 }
4246
4247 /*
4248  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4249  *                 (These are just queued -- we actually process them later.)
4250  */
4251 void AdjRefCount(long msgnum, int incr)
4252 {
4253         struct arcq new_arcq;
4254
4255         begin_critical_section(S_SUPPMSGMAIN);
4256         if (arcfp == NULL) {
4257                 arcfp = fopen(file_arcq, "ab+");
4258         }
4259         end_critical_section(S_SUPPMSGMAIN);
4260
4261         /* msgnum < 0 means that we're trying to close the file */
4262         if (msgnum < 0) {
4263                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4264                 begin_critical_section(S_SUPPMSGMAIN);
4265                 if (arcfp != NULL) {
4266                         fclose(arcfp);
4267                         arcfp = NULL;
4268                 }
4269                 end_critical_section(S_SUPPMSGMAIN);
4270                 return;
4271         }
4272
4273         /*
4274          * If we can't open the queue, perform the operation synchronously.
4275          */
4276         if (arcfp == NULL) {
4277                 TDAP_AdjRefCount(msgnum, incr);
4278                 return;
4279         }
4280
4281         new_arcq.arcq_msgnum = msgnum;
4282         new_arcq.arcq_delta = incr;
4283         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4284         fflush(arcfp);
4285
4286         return;
4287 }
4288
4289
4290 /*
4291  * TDAP_ProcessAdjRefCountQueue()
4292  *
4293  * Process the queue of message count adjustments that was created by calls
4294  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4295  * for each one.  This should be an "off hours" operation.
4296  */
4297 int TDAP_ProcessAdjRefCountQueue(void)
4298 {
4299         char file_arcq_temp[PATH_MAX];
4300         int r;
4301         FILE *fp;
4302         struct arcq arcq_rec;
4303         int num_records_processed = 0;
4304
4305         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s2", file_arcq);
4306
4307         begin_critical_section(S_SUPPMSGMAIN);
4308         if (arcfp != NULL) {
4309                 fclose(arcfp);
4310                 arcfp = NULL;
4311         }
4312
4313         r = link(file_arcq, file_arcq_temp);
4314         if (r != 0) {
4315                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4316                 end_critical_section(S_SUPPMSGMAIN);
4317                 return(num_records_processed);
4318         }
4319
4320         unlink(file_arcq);
4321         end_critical_section(S_SUPPMSGMAIN);
4322
4323         fp = fopen(file_arcq_temp, "rb");
4324         if (fp == NULL) {
4325                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4326                 return(num_records_processed);
4327         }
4328
4329         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4330                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4331                 ++num_records_processed;
4332         }
4333
4334         fclose(fp);
4335         r = unlink(file_arcq_temp);
4336         if (r != 0) {
4337                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4338         }
4339
4340         return(num_records_processed);
4341 }
4342
4343
4344
4345 /*
4346  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4347  *                      This one does it "for real" because it's called by
4348  *                      the autopurger function that processes the queue
4349  *                      created by AdjRefCount().   If a message's reference
4350  *                      count becomes zero, we also delete the message from
4351  *                      disk and de-index it.
4352  */
4353 void TDAP_AdjRefCount(long msgnum, int incr)
4354 {
4355
4356         struct MetaData smi;
4357         long delnum;
4358
4359         /* This is a *tight* critical section; please keep it that way, as
4360          * it may get called while nested in other critical sections.
4361          * Complicating this any further will surely cause deadlock!
4362          */
4363         begin_critical_section(S_SUPPMSGMAIN);
4364         GetMetaData(&smi, msgnum);
4365         smi.meta_refcount += incr;
4366         PutMetaData(&smi);
4367         end_critical_section(S_SUPPMSGMAIN);
4368         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %d, is now %d\n",
4369                 msgnum, incr, smi.meta_refcount);
4370
4371         /* If the reference count is now zero, delete the message
4372          * (and its supplementary record as well).
4373          */
4374         if (smi.meta_refcount == 0) {
4375                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4376
4377                 /* Call delete hooks with NULL room to show it has gone altogether */
4378                 PerformDeleteHooks(NULL, msgnum);
4379
4380                 /* Remove from message base */
4381                 delnum = msgnum;
4382                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4383                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4384
4385                 /* Remove metadata record */
4386                 delnum = (0L - msgnum);
4387                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4388         }
4389
4390 }
4391
4392 /*
4393  * Write a generic object to this room
4394  *
4395  * Note: this could be much more efficient.  Right now we use two temporary
4396  * files, and still pull the message into memory as with all others.
4397  */
4398 void CtdlWriteObject(char *req_room,            /* Room to stuff it in */
4399                         char *content_type,     /* MIME type of this object */
4400                         char *tempfilename,     /* Where to fetch it from */
4401                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4402                         int is_binary,          /* Is encoding necessary? */
4403                         int is_unique,          /* Del others of this type? */
4404                         unsigned int flags      /* Internal save flags */
4405                         )
4406 {
4407
4408         FILE *fp;
4409         struct ctdlroom qrbuf;
4410         char roomname[ROOMNAMELEN];
4411         struct CtdlMessage *msg;
4412
4413         char *raw_message = NULL;
4414         char *encoded_message = NULL;
4415         off_t raw_length = 0;
4416
4417         if (is_mailbox != NULL) {
4418                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4419         }
4420         else {
4421                 safestrncpy(roomname, req_room, sizeof(roomname));
4422         }
4423
4424         fp = fopen(tempfilename, "rb");
4425         if (fp == NULL) {
4426                 CtdlLogPrintf(CTDL_CRIT, "Cannot open %s: %s\n",
4427                         tempfilename, strerror(errno));
4428                 return;
4429         }
4430         fseek(fp, 0L, SEEK_END);
4431         raw_length = ftell(fp);
4432         rewind(fp);
4433         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4434
4435         raw_message = malloc((size_t)raw_length + 2);
4436         fread(raw_message, (size_t)raw_length, 1, fp);
4437         fclose(fp);
4438
4439         if (is_binary) {
4440                 encoded_message = malloc((size_t)
4441                         (((raw_length * 134) / 100) + 4096 ) );
4442         }
4443         else {
4444                 encoded_message = malloc((size_t)(raw_length + 4096));
4445         }
4446
4447         sprintf(encoded_message, "Content-type: %s\n", content_type);
4448
4449         if (is_binary) {
4450                 sprintf(&encoded_message[strlen(encoded_message)],
4451                         "Content-transfer-encoding: base64\n\n"
4452                 );
4453         }
4454         else {
4455                 sprintf(&encoded_message[strlen(encoded_message)],
4456                         "Content-transfer-encoding: 7bit\n\n"
4457                 );
4458         }
4459
4460         if (is_binary) {
4461                 CtdlEncodeBase64(
4462                         &encoded_message[strlen(encoded_message)],
4463                         raw_message,
4464                         (int)raw_length,
4465                         0
4466                 );
4467         }
4468         else {
4469                 raw_message[raw_length] = 0;
4470                 memcpy(
4471                         &encoded_message[strlen(encoded_message)],
4472                         raw_message,
4473                         (int)(raw_length+1)
4474                 );
4475         }
4476
4477         free(raw_message);
4478
4479         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4480         msg = malloc(sizeof(struct CtdlMessage));
4481         memset(msg, 0, sizeof(struct CtdlMessage));
4482         msg->cm_magic = CTDLMESSAGE_MAGIC;
4483         msg->cm_anon_type = MES_NORMAL;
4484         msg->cm_format_type = 4;
4485         msg->cm_fields['A'] = strdup(CC->user.fullname);
4486         msg->cm_fields['O'] = strdup(req_room);
4487         msg->cm_fields['N'] = strdup(config.c_nodename);
4488         msg->cm_fields['H'] = strdup(config.c_humannode);
4489         msg->cm_flags = flags;
4490
4491         msg->cm_fields['M'] = encoded_message;
4492
4493         /* Create the requested room if we have to. */
4494         if (getroom(&qrbuf, roomname) != 0) {
4495                 create_room(roomname,
4496                         ( (is_mailbox != NULL) ? 5 : 3 ),
4497                         "", 0, 1, 0, VIEW_BBS);
4498         }
4499         /* If the caller specified this object as unique, delete all
4500          * other objects of this type that are currently in the room.
4501          */
4502         if (is_unique) {
4503                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4504                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4505                 );
4506         }
4507         /* Now write the data */
4508         CtdlSubmitMsg(msg, NULL, roomname);
4509         CtdlFreeMessage(msg);
4510 }
4511
4512
4513
4514
4515
4516
4517 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4518         config_msgnum = msgnum;
4519 }
4520
4521
4522 char *CtdlGetSysConfig(char *sysconfname) {
4523         char hold_rm[ROOMNAMELEN];
4524         long msgnum;
4525         char *conf;
4526         struct CtdlMessage *msg;
4527         char buf[SIZ];
4528
4529         strcpy(hold_rm, CC->room.QRname);
4530         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4531                 getroom(&CC->room, hold_rm);
4532                 return NULL;
4533         }
4534
4535
4536         /* We want the last (and probably only) config in this room */
4537         begin_critical_section(S_CONFIG);
4538         config_msgnum = (-1L);
4539         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4540                 CtdlGetSysConfigBackend, NULL);
4541         msgnum = config_msgnum;
4542         end_critical_section(S_CONFIG);
4543
4544         if (msgnum < 0L) {
4545                 conf = NULL;
4546         }
4547         else {
4548                 msg = CtdlFetchMessage(msgnum, 1);
4549                 if (msg != NULL) {
4550                         conf = strdup(msg->cm_fields['M']);
4551                         CtdlFreeMessage(msg);
4552                 }
4553                 else {
4554                         conf = NULL;
4555                 }
4556         }
4557
4558         getroom(&CC->room, hold_rm);
4559
4560         if (conf != NULL) do {
4561                 extract_token(buf, conf, 0, '\n', sizeof buf);
4562                 strcpy(conf, &conf[strlen(buf)+1]);
4563         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4564
4565         return(conf);
4566 }
4567
4568 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4569         char temp[PATH_MAX];
4570         FILE *fp;
4571
4572         CtdlMakeTempFileName(temp, sizeof temp);
4573
4574         fp = fopen(temp, "w");
4575         if (fp == NULL) return;
4576         fprintf(fp, "%s", sysconfdata);
4577         fclose(fp);
4578
4579         /* this handy API function does all the work for us */
4580         CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
4581         unlink(temp);
4582 }
4583
4584
4585 /*
4586  * Determine whether a given Internet address belongs to the current user
4587  */
4588 int CtdlIsMe(char *addr, int addr_buf_len)
4589 {
4590         struct recptypes *recp;
4591         int i;
4592
4593         recp = validate_recipients(addr, NULL, 0);
4594         if (recp == NULL) return(0);
4595
4596         if (recp->num_local == 0) {
4597                 free_recipients(recp);
4598                 return(0);
4599         }
4600
4601         for (i=0; i<recp->num_local; ++i) {
4602                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4603                 if (!strcasecmp(addr, CC->user.fullname)) {
4604                         free_recipients(recp);
4605                         return(1);
4606                 }
4607         }
4608
4609         free_recipients(recp);
4610         return(0);
4611 }
4612
4613
4614 /*
4615  * Citadel protocol command to do the same
4616  */
4617 void cmd_isme(char *argbuf) {
4618         char addr[256];
4619
4620         if (CtdlAccessCheck(ac_logged_in)) return;
4621         extract_token(addr, argbuf, 0, '|', sizeof addr);
4622
4623         if (CtdlIsMe(addr, sizeof addr)) {
4624                 cprintf("%d %s\n", CIT_OK, addr);
4625         }
4626         else {
4627                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4628         }
4629
4630 }