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                   int flags             /* should the bessage be exported clean? */
1377 ) {
1378         struct CtdlMessage *TheMessage = NULL;
1379         int retcode = om_no_such_msg;
1380         struct encapmsg encap;
1381
1382         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n",
1383                 msg_num, mode,
1384                 (section ? section : "<>")
1385         );
1386
1387         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1388                 if (do_proto) cprintf("%d Not logged in.\n",
1389                         ERROR + NOT_LOGGED_IN);
1390                 return(om_not_logged_in);
1391         }
1392
1393         /* FIXME: check message id against msglist for this room */
1394
1395         /*
1396          * Fetch the message from disk.  If we're in any sort of headers
1397          * only mode, request that we don't even bother loading the body
1398          * into memory.
1399          */
1400         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1401                 TheMessage = CtdlFetchMessage(msg_num, 0);
1402         }
1403         else {
1404                 TheMessage = CtdlFetchMessage(msg_num, 1);
1405         }
1406
1407         if (TheMessage == NULL) {
1408                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1409                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1410                 return(om_no_such_msg);
1411         }
1412
1413         /* Here is the weird form of this command, to process only an
1414          * encapsulated message/rfc822 section.
1415          */
1416         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1417                 memset(&encap, 0, sizeof encap);
1418                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1419                 mime_parser(TheMessage->cm_fields['M'],
1420                         NULL,
1421                         *extract_encapsulated_message,
1422                         NULL, NULL, (void *)&encap, 0
1423                 );
1424                 CtdlFreeMessage(TheMessage);
1425                 TheMessage = NULL;
1426
1427                 if (encap.msg) {
1428                         encap.msg[encap.msglen] = 0;
1429                         TheMessage = convert_internet_message(encap.msg);
1430                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1431
1432                         /* Now we let it fall through to the bottom of this
1433                          * function, because TheMessage now contains the
1434                          * encapsulated message instead of the top-level
1435                          * message.  Isn't that neat?
1436                          */
1437
1438                 }
1439                 else {
1440                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1441                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1442                         retcode = om_no_such_msg;
1443                 }
1444
1445         }
1446
1447         /* Ok, output the message now */
1448         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf, flags);
1449         CtdlFreeMessage(TheMessage);
1450
1451         return(retcode);
1452 }
1453
1454 char *qp_encode_email_addrs(char *source)
1455 {
1456         char user[256], node[256], name[256];
1457         const char headerStr[] = "=?UTF-8?Q?";
1458         char *Encoded;
1459         char *EncodedName;
1460         char *nPtr;
1461         int need_to_encode = 0;
1462         long SourceLen;
1463         long EncodedMaxLen;
1464         long nColons = 0;
1465         long *AddrPtr;
1466         long *AddrUtf8;
1467         long nAddrPtrMax = 50;
1468         long nmax;
1469         int InQuotes = 0;
1470         int i, n;
1471
1472
1473         if (source == NULL)
1474                 return source;
1475
1476         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1477         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1478         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1479         *AddrPtr = 0;
1480         i = 0;
1481         while (!IsEmptyStr (&source[i])) {
1482                 if (nColons > nAddrPtrMax){
1483                         long *ptr;
1484
1485                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1486                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1487                         free (AddrPtr), AddrPtr = ptr;
1488                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1489                         memset(ptr + sizeof (long) * nAddrPtrMax, 0, sizeof (long) * nAddrPtrMax - 1);
1490                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1491                         free (AddrUtf8), AddrUtf8 = ptr;
1492                         nAddrPtrMax *= 2;
1493                 }
1494                 if (((unsigned char) source[i] < 32) ||
1495                     ((unsigned char) source[i] > 126)) {
1496                         need_to_encode = 1;
1497                         AddrUtf8[nColons] = 1;
1498                 }
1499                 if (source[i] == '"')
1500                         InQuotes = !InQuotes;
1501                 if (!InQuotes && source[i] == ',') {
1502                         nColons++;
1503                         AddrPtr[nColons] = i;
1504                 }
1505                 i++;
1506         }
1507         if (need_to_encode == 0) {
1508                 free(AddrPtr);
1509                 free(AddrUtf8);
1510                 return source;
1511         }
1512
1513         SourceLen = i;
1514         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1515         Encoded = (char*) malloc (EncodedMaxLen);
1516
1517         for (i = 1; i <= nColons; i++)
1518                 source[AddrPtr[i]++] = '\0';
1519
1520         nPtr = Encoded;
1521         *nPtr = '\0';
1522         for (i = 0; i <= nColons && nPtr != NULL; i++) {
1523                 nmax = EncodedMaxLen - (nPtr - Encoded);
1524                 if (AddrUtf8[i]) {
1525                         process_rfc822_addr(&source[AddrPtr[i]],
1526                                             user,
1527                                             node,
1528                                             name);
1529                         /* TODO: libIDN here ! */
1530                         if (IsEmptyStr(name)) {
1531                                 n = snprintf(nPtr, nmax,
1532                                              (i==0)?"%s@%s" : ",%s@%s",
1533                                              user, node);
1534                         }
1535                         else {
1536                                 EncodedName = rfc2047encode(name, strlen(name));
1537                                 n = snprintf(nPtr, nmax,
1538                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1539                                              EncodedName, user, node);
1540                                 free(EncodedName);
1541                         }
1542                 }
1543                 else {
1544                         n = snprintf(nPtr, nmax,
1545                                      (i==0)?"%s" : ",%s",
1546                                      &source[AddrPtr[i]]);
1547                 }
1548                 if (n > 0 )
1549                         nPtr += n;
1550                 else {
1551                         char *ptr, *nnPtr;
1552                         ptr = (char*) malloc(EncodedMaxLen * 2);
1553                         memcpy(ptr, Encoded, EncodedMaxLen);
1554                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1555                         free(Encoded), Encoded = ptr;
1556                         EncodedMaxLen *= 2;
1557                         i--; /* do it once more with properly lengthened buffer */
1558                 }
1559         }
1560         for (i = 1; i <= nColons; i++)
1561                 source[--AddrPtr[i]] = ',';
1562         free(AddrUtf8);
1563         free(AddrPtr);
1564         return Encoded;
1565 }
1566
1567 /*
1568  * Get a message off disk.  (returns om_* values found in msgbase.h)
1569  */
1570 int CtdlOutputPreLoadedMsg(
1571                 struct CtdlMessage *TheMessage,
1572                 int mode,               /* how would you like that message? */
1573                 int headers_only,       /* eschew the message body? */
1574                 int do_proto,           /* do Citadel protocol responses? */
1575                 int crlf,               /* Use CRLF newlines instead of LF? */
1576                 int flags               /* should the bessage be exported clean? */
1577 ) {
1578         int i, j, k;
1579         char buf[SIZ];
1580         cit_uint8_t ch;
1581         char allkeys[30];
1582         char display_name[256];
1583         char *mptr, *mpptr;
1584         char *nl;       /* newline string */
1585         int suppress_f = 0;
1586         int subject_found = 0;
1587         struct ma_info ma;
1588
1589         /* Buffers needed for RFC822 translation.  These are all filled
1590          * using functions that are bounds-checked, and therefore we can
1591          * make them substantially smaller than SIZ.
1592          */
1593         char suser[100];
1594         char luser[100];
1595         char fuser[100];
1596         char snode[100];
1597         char lnode[100];
1598         char mid[100];
1599         char datestamp[100];
1600
1601         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1602                 ((TheMessage == NULL) ? "NULL" : "not null"),
1603                 mode, headers_only, do_proto, crlf);
1604
1605         strcpy(mid, "unknown");
1606         nl = (crlf ? "\r\n" : "\n");
1607
1608         if (!is_valid_message(TheMessage)) {
1609                 CtdlLogPrintf(CTDL_ERR,
1610                         "ERROR: invalid preloaded message for output\n");
1611                 return(om_no_such_msg);
1612         }
1613
1614         /* Are we downloading a MIME component? */
1615         if (mode == MT_DOWNLOAD) {
1616                 if (TheMessage->cm_format_type != FMT_RFC822) {
1617                         if (do_proto)
1618                                 cprintf("%d This is not a MIME message.\n",
1619                                 ERROR + ILLEGAL_VALUE);
1620                 } else if (CC->download_fp != NULL) {
1621                         if (do_proto) cprintf(
1622                                 "%d You already have a download open.\n",
1623                                 ERROR + RESOURCE_BUSY);
1624                 } else {
1625                         /* Parse the message text component */
1626                         mptr = TheMessage->cm_fields['M'];
1627                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1628                         /* If there's no file open by this time, the requested
1629                          * section wasn't found, so print an error
1630                          */
1631                         if (CC->download_fp == NULL) {
1632                                 if (do_proto) cprintf(
1633                                         "%d Section %s not found.\n",
1634                                         ERROR + FILE_NOT_FOUND,
1635                                         CC->download_desired_section);
1636                         }
1637                 }
1638                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1639         }
1640
1641         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1642          * in a single server operation instead of opening a download file.
1643          */
1644         if (mode == MT_SPEW_SECTION) {
1645                 if (TheMessage->cm_format_type != FMT_RFC822) {
1646                         if (do_proto)
1647                                 cprintf("%d This is not a MIME message.\n",
1648                                 ERROR + ILLEGAL_VALUE);
1649                 } else {
1650                         /* Parse the message text component */
1651                         int found_it = 0;
1652
1653                         mptr = TheMessage->cm_fields['M'];
1654                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1655                         /* If section wasn't found, print an error
1656                          */
1657                         if (!found_it) {
1658                                 if (do_proto) cprintf(
1659                                         "%d Section %s not found.\n",
1660                                         ERROR + FILE_NOT_FOUND,
1661                                         CC->download_desired_section);
1662                         }
1663                 }
1664                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1665         }
1666
1667         /* now for the user-mode message reading loops */
1668         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1669
1670         /* Does the caller want to skip the headers? */
1671         if (headers_only == HEADERS_NONE) goto START_TEXT;
1672
1673         /* Tell the client which format type we're using. */
1674         if ( (mode == MT_CITADEL) && (do_proto) ) {
1675                 cprintf("type=%d\n", TheMessage->cm_format_type);
1676         }
1677
1678         /* nhdr=yes means that we're only displaying headers, no body */
1679         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1680            && (mode == MT_CITADEL)
1681            && (do_proto)
1682            ) {
1683                 cprintf("nhdr=yes\n");
1684         }
1685
1686         /* begin header processing loop for Citadel message format */
1687
1688         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1689
1690                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1691                 if (TheMessage->cm_fields['A']) {
1692                         strcpy(buf, TheMessage->cm_fields['A']);
1693                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1694                                 safestrncpy(display_name, "****", sizeof display_name);
1695                         }
1696                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1697                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1698                         }
1699                         else {
1700                                 safestrncpy(display_name, buf, sizeof display_name);
1701                         }
1702                         if ((is_room_aide())
1703                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1704                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1705                                 size_t tmp = strlen(display_name);
1706                                 snprintf(&display_name[tmp],
1707                                          sizeof display_name - tmp,
1708                                          " [%s]", buf);
1709                         }
1710                 }
1711
1712                 /* Don't show Internet address for users on the
1713                  * local Citadel network.
1714                  */
1715                 suppress_f = 0;
1716                 if (TheMessage->cm_fields['N'] != NULL)
1717                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1718                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1719                         suppress_f = 1;
1720                 }
1721
1722                 /* Now spew the header fields in the order we like them. */
1723                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1724                 for (i=0; i<strlen(allkeys); ++i) {
1725                         k = (int) allkeys[i];
1726                         if (k != 'M') {
1727                                 if ( (TheMessage->cm_fields[k] != NULL)
1728                                    && (msgkeys[k] != NULL) ) {
1729                                         if (k == 'A') {
1730                                                 if (do_proto) cprintf("%s=%s\n",
1731                                                         msgkeys[k],
1732                                                         display_name);
1733                                         }
1734                                         else if ((k == 'F') && (suppress_f)) {
1735                                                 /* do nothing */
1736                                         }
1737                                         /* Masquerade display name if needed */
1738                                         else {
1739                                                 if (do_proto) cprintf("%s=%s\n",
1740                                                         msgkeys[k],
1741                                                         TheMessage->cm_fields[k]
1742                                         );
1743                                         }
1744                                 }
1745                         }
1746                 }
1747
1748         }
1749
1750         /* begin header processing loop for RFC822 transfer format */
1751
1752         strcpy(suser, "");
1753         strcpy(luser, "");
1754         strcpy(fuser, "");
1755         strcpy(snode, NODENAME);
1756         strcpy(lnode, HUMANNODE);
1757         if (mode == MT_RFC822) {
1758                 for (i = 0; i < 256; ++i) {
1759                         if (TheMessage->cm_fields[i]) {
1760                                 mptr = mpptr = TheMessage->cm_fields[i];
1761
1762                                 if (i == 'A') {
1763                                         safestrncpy(luser, mptr, sizeof luser);
1764                                         safestrncpy(suser, mptr, sizeof suser);
1765                                 }
1766                                 else if (i == 'Y') {
1767                                         if (flags & QP_EADDR != 0)
1768                                                 mptr = qp_encode_email_addrs(mptr);
1769                                         cprintf("CC: %s%s", mptr, nl);
1770                                 }
1771                                 else if (i == 'P') {
1772                                         cprintf("Return-Path: %s%s", mptr, nl);
1773                                 }
1774                                 else if (i == 'V') {
1775                                         if (flags & QP_EADDR != 0)
1776                                                 mptr = qp_encode_email_addrs(mptr);
1777                                         cprintf("Envelope-To: %s%s", mptr, nl);
1778                                 }
1779                                 else if (i == 'U') {
1780                                         cprintf("Subject: %s%s", mptr, nl);
1781                                         subject_found = 1;
1782                                 }
1783                                 else if (i == 'I')
1784                                         safestrncpy(mid, mptr, sizeof mid);
1785                                 else if (i == 'H')
1786                                         safestrncpy(lnode, mptr, sizeof lnode);
1787                                 else if (i == 'F')
1788                                         safestrncpy(fuser, mptr, sizeof fuser);
1789                                 /* else if (i == 'O')
1790                                         cprintf("X-Citadel-Room: %s%s",
1791                                                 mptr, nl); */
1792                                 else if (i == 'N')
1793                                         safestrncpy(snode, mptr, sizeof snode);
1794                                 else if (i == 'R')
1795                                 {
1796                                         if (haschar(mptr, '@') == 0)
1797                                         {
1798                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1799                                         }
1800                                         else
1801                                         {
1802                                                 if (flags & QP_EADDR != 0)
1803                                                         mptr = qp_encode_email_addrs(mptr);
1804                                                 cprintf("To: %s%s", mptr, nl);
1805                                         }
1806                                 }
1807                                 else if (i == 'T') {
1808                                         datestring(datestamp, sizeof datestamp,
1809                                                 atol(mptr), DATESTRING_RFC822);
1810                                         cprintf("Date: %s%s", datestamp, nl);
1811                                 }
1812                                 else if (i == 'W') {
1813                                         cprintf("References: ");
1814                                         k = num_tokens(mptr, '|');
1815                                         for (j=0; j<k; ++j) {
1816                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1817                                                 cprintf("<%s>", buf);
1818                                                 if (j == (k-1)) {
1819                                                         cprintf("%s", nl);
1820                                                 }
1821                                                 else {
1822                                                         cprintf(" ");
1823                                                 }
1824                                         }
1825                                 }
1826                                 if (mptr != mpptr)
1827                                         free (mptr);
1828                         }
1829                 }
1830                 if (subject_found == 0) {
1831                         cprintf("Subject: (no subject)%s", nl);
1832                 }
1833         }
1834
1835         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1836                 suser[i] = tolower(suser[i]);
1837                 if (!isalnum(suser[i])) suser[i]='_';
1838         }
1839
1840         if (mode == MT_RFC822) {
1841                 if (!strcasecmp(snode, NODENAME)) {
1842                         safestrncpy(snode, FQDN, sizeof snode);
1843                 }
1844
1845                 /* Construct a fun message id */
1846                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1847                 if (strchr(mid, '@')==NULL) {
1848                         cprintf("@%s", snode);
1849                 }
1850                 cprintf(">%s", nl);
1851
1852                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1853                         cprintf("From: \"----\" <x@x.org>%s", nl);
1854                 }
1855                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1856                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1857                 }
1858                 else if (!IsEmptyStr(fuser)) {
1859                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1860                 }
1861                 else {
1862                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1863                 }
1864
1865                 cprintf("Organization: %s%s", lnode, nl);
1866
1867                 /* Blank line signifying RFC822 end-of-headers */
1868                 if (TheMessage->cm_format_type != FMT_RFC822) {
1869                         cprintf("%s", nl);
1870                 }
1871         }
1872
1873         /* end header processing loop ... at this point, we're in the text */
1874 START_TEXT:
1875         if (headers_only == HEADERS_FAST) goto DONE;
1876         mptr = TheMessage->cm_fields['M'];
1877
1878         /* Tell the client about the MIME parts in this message */
1879         if (TheMessage->cm_format_type == FMT_RFC822) {
1880                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1881                         memset(&ma, 0, sizeof(struct ma_info));
1882                         mime_parser(mptr, NULL,
1883                                 (do_proto ? *list_this_part : NULL),
1884                                 (do_proto ? *list_this_pref : NULL),
1885                                 (do_proto ? *list_this_suff : NULL),
1886                                 (void *)&ma, 0);
1887                 }
1888                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1889                         char *start_of_text = NULL;
1890                         start_of_text = strstr(mptr, "\n\r\n");
1891                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1892                         if (start_of_text == NULL) start_of_text = mptr;
1893                         ++start_of_text;
1894                         start_of_text = strstr(start_of_text, "\n");
1895                         ++start_of_text;
1896
1897                         char outbuf[1024];
1898                         int outlen = 0;
1899                         int nllen = strlen(nl);
1900                         while (ch=*mptr, ch!=0) {
1901                                 if (ch==13) {
1902                                         /* do nothing */
1903                                 }
1904                                 else {
1905                                         if (
1906                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1907                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1908                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1909                                         ) {
1910                                                 if (ch == 10) {
1911                                                         sprintf(&outbuf[outlen], "%s", nl);
1912                                                         outlen += nllen;
1913                                                 }
1914                                                 else {
1915                                                         outbuf[outlen++] = ch;
1916                                                 }
1917                                         }
1918                                 }
1919                                 ++mptr;
1920                                 if (outlen > 1000) {
1921                                         client_write(outbuf, outlen);
1922                                         outlen = 0;
1923                                 }
1924                         }
1925                         if (outlen > 0) {
1926                                 client_write(outbuf, outlen);
1927                                 outlen = 0;
1928                         }
1929
1930                         goto DONE;
1931                 }
1932         }
1933
1934         if (headers_only == HEADERS_ONLY) {
1935                 goto DONE;
1936         }
1937
1938         /* signify start of msg text */
1939         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1940                 if (do_proto) cprintf("text\n");
1941         }
1942
1943         /* If the format type on disk is 1 (fixed-format), then we want
1944          * everything to be output completely literally ... regardless of
1945          * what message transfer format is in use.
1946          */
1947         if (TheMessage->cm_format_type == FMT_FIXED) {
1948                 int buflen;
1949                 if (mode == MT_MIME) {
1950                         cprintf("Content-type: text/plain\n\n");
1951                 }
1952                 *buf = '\0';
1953                 buflen = 0;
1954                 while (ch = *mptr++, ch > 0) {
1955                         if (ch == 13)
1956                                 ch = 10;
1957                         if ((ch == 10) || (buflen > 250)) {
1958                                 buf[buflen] = '\0';
1959                                 cprintf("%s%s", buf, nl);
1960                                 *buf = '\0';
1961                                 buflen = 0;
1962                         } else {
1963                                 buf[buflen] = ch;
1964                                 buflen++;
1965                         }
1966                 }
1967                 buf[buflen] = '\0';
1968                 if (!IsEmptyStr(buf))
1969                         cprintf("%s%s", buf, nl);
1970         }
1971
1972         /* If the message on disk is format 0 (Citadel vari-format), we
1973          * output using the formatter at 80 columns.  This is the final output
1974          * form if the transfer format is RFC822, but if the transfer format
1975          * is Citadel proprietary, it'll still work, because the indentation
1976          * for new paragraphs is correct and the client will reformat the
1977          * message to the reader's screen width.
1978          */
1979         if (TheMessage->cm_format_type == FMT_CITADEL) {
1980                 if (mode == MT_MIME) {
1981                         cprintf("Content-type: text/x-citadel-variformat\n\n");
1982                 }
1983                 memfmout(mptr, 0, nl);
1984         }
1985
1986         /* If the message on disk is format 4 (MIME), we've gotta hand it
1987          * off to the MIME parser.  The client has already been told that
1988          * this message is format 1 (fixed format), so the callback function
1989          * we use will display those parts as-is.
1990          */
1991         if (TheMessage->cm_format_type == FMT_RFC822) {
1992                 memset(&ma, 0, sizeof(struct ma_info));
1993
1994                 if (mode == MT_MIME) {
1995                         ma.use_fo_hooks = 0;
1996                         strcpy(ma.chosen_part, "1");
1997                         ma.chosen_pref = 9999;
1998                         mime_parser(mptr, NULL,
1999                                 *choose_preferred, *fixed_output_pre,
2000                                 *fixed_output_post, (void *)&ma, 0);
2001                         mime_parser(mptr, NULL,
2002                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
2003                 }
2004                 else {
2005                         ma.use_fo_hooks = 1;
2006                         mime_parser(mptr, NULL,
2007                                 *fixed_output, *fixed_output_pre,
2008                                 *fixed_output_post, (void *)&ma, 0);
2009                 }
2010
2011         }
2012
2013 DONE:   /* now we're done */
2014         if (do_proto) cprintf("000\n");
2015         return(om_ok);
2016 }
2017
2018
2019
2020 /*
2021  * display a message (mode 0 - Citadel proprietary)
2022  */
2023 void cmd_msg0(char *cmdbuf)
2024 {
2025         long msgid;
2026         int headers_only = HEADERS_ALL;
2027
2028         msgid = extract_long(cmdbuf, 0);
2029         headers_only = extract_int(cmdbuf, 1);
2030
2031         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL, 0);
2032         return;
2033 }
2034
2035
2036 /*
2037  * display a message (mode 2 - RFC822)
2038  */
2039 void cmd_msg2(char *cmdbuf)
2040 {
2041         long msgid;
2042         int headers_only = HEADERS_ALL;
2043
2044         msgid = extract_long(cmdbuf, 0);
2045         headers_only = extract_int(cmdbuf, 1);
2046
2047         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL, 0);
2048 }
2049
2050
2051
2052 /*
2053  * display a message (mode 3 - IGnet raw format - internal programs only)
2054  */
2055 void cmd_msg3(char *cmdbuf)
2056 {
2057         long msgnum;
2058         struct CtdlMessage *msg = NULL;
2059         struct ser_ret smr;
2060
2061         if (CC->internal_pgm == 0) {
2062                 cprintf("%d This command is for internal programs only.\n",
2063                         ERROR + HIGHER_ACCESS_REQUIRED);
2064                 return;
2065         }
2066
2067         msgnum = extract_long(cmdbuf, 0);
2068         msg = CtdlFetchMessage(msgnum, 1);
2069         if (msg == NULL) {
2070                 cprintf("%d Message %ld not found.\n",
2071                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2072                 return;
2073         }
2074
2075         serialize_message(&smr, msg);
2076         CtdlFreeMessage(msg);
2077
2078         if (smr.len == 0) {
2079                 cprintf("%d Unable to serialize message\n",
2080                         ERROR + INTERNAL_ERROR);
2081                 return;
2082         }
2083
2084         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2085         client_write((char *)smr.ser, (int)smr.len);
2086         free(smr.ser);
2087 }
2088
2089
2090
2091 /*
2092  * Display a message using MIME content types
2093  */
2094 void cmd_msg4(char *cmdbuf)
2095 {
2096         long msgid;
2097         char section[64];
2098
2099         msgid = extract_long(cmdbuf, 0);
2100         extract_token(section, cmdbuf, 1, '|', sizeof section);
2101         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) , 0);
2102 }
2103
2104
2105
2106 /*
2107  * Client tells us its preferred message format(s)
2108  */
2109 void cmd_msgp(char *cmdbuf)
2110 {
2111         if (!strcasecmp(cmdbuf, "dont_decode")) {
2112                 CC->msg4_dont_decode = 1;
2113                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2114         }
2115         else {
2116                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2117                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2118         }
2119 }
2120
2121
2122 /*
2123  * Open a component of a MIME message as a download file
2124  */
2125 void cmd_opna(char *cmdbuf)
2126 {
2127         long msgid;
2128         char desired_section[128];
2129
2130         msgid = extract_long(cmdbuf, 0);
2131         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2132         safestrncpy(CC->download_desired_section, desired_section,
2133                 sizeof CC->download_desired_section);
2134         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL, 0);
2135 }
2136
2137
2138 /*
2139  * Open a component of a MIME message and transmit it all at once
2140  */
2141 void cmd_dlat(char *cmdbuf)
2142 {
2143         long msgid;
2144         char desired_section[128];
2145
2146         msgid = extract_long(cmdbuf, 0);
2147         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2148         safestrncpy(CC->download_desired_section, desired_section,
2149                 sizeof CC->download_desired_section);
2150         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL, 0);
2151 }
2152
2153
2154 /*
2155  * Save one or more message pointers into a specified room
2156  * (Returns 0 for success, nonzero for failure)
2157  * roomname may be NULL to use the current room
2158  *
2159  * Note that the 'supplied_msg' field may be set to NULL, in which case
2160  * the message will be fetched from disk, by number, if we need to perform
2161  * replication checks.  This adds an additional database read, so if the
2162  * caller already has the message in memory then it should be supplied.  (Obviously
2163  * this mode of operation only works if we're saving a single message.)
2164  */
2165 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2166                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2167 {
2168         int i, j, unique;
2169         char hold_rm[ROOMNAMELEN];
2170         struct cdbdata *cdbfr;
2171         int num_msgs;
2172         long *msglist;
2173         long highest_msg = 0L;
2174
2175         long msgid = 0;
2176         struct CtdlMessage *msg = NULL;
2177
2178         long *msgs_to_be_merged = NULL;
2179         int num_msgs_to_be_merged = 0;
2180
2181         CtdlLogPrintf(CTDL_DEBUG,
2182                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2183                 roomname, num_newmsgs, do_repl_check);
2184
2185         strcpy(hold_rm, CC->room.QRname);
2186
2187         /* Sanity checks */
2188         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2189         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2190         if (num_newmsgs > 1) supplied_msg = NULL;
2191
2192         /* Now the regular stuff */
2193         if (lgetroom(&CC->room,
2194            ((roomname != NULL) ? roomname : CC->room.QRname) )
2195            != 0) {
2196                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2197                 return(ERROR + ROOM_NOT_FOUND);
2198         }
2199
2200
2201         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2202         num_msgs_to_be_merged = 0;
2203
2204
2205         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2206         if (cdbfr == NULL) {
2207                 msglist = NULL;
2208                 num_msgs = 0;
2209         } else {
2210                 msglist = (long *) cdbfr->ptr;
2211                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2212                 num_msgs = cdbfr->len / sizeof(long);
2213                 cdb_free(cdbfr);
2214         }
2215
2216
2217         /* Create a list of msgid's which were supplied by the caller, but do
2218          * not already exist in the target room.  It is absolutely taboo to
2219          * have more than one reference to the same message in a room.
2220          */
2221         for (i=0; i<num_newmsgs; ++i) {
2222                 unique = 1;
2223                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2224                         if (msglist[j] == newmsgidlist[i]) {
2225                                 unique = 0;
2226                         }
2227                 }
2228                 if (unique) {
2229                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2230                 }
2231         }
2232
2233         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2234
2235         /*
2236          * Now merge the new messages
2237          */
2238         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2239         if (msglist == NULL) {
2240                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2241         }
2242         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2243         num_msgs += num_msgs_to_be_merged;
2244
2245         /* Sort the message list, so all the msgid's are in order */
2246         num_msgs = sort_msglist(msglist, num_msgs);
2247
2248         /* Determine the highest message number */
2249         highest_msg = msglist[num_msgs - 1];
2250
2251         /* Write it back to disk. */
2252         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2253                   msglist, (int)(num_msgs * sizeof(long)));
2254
2255         /* Free up the memory we used. */
2256         free(msglist);
2257
2258         /* Update the highest-message pointer and unlock the room. */
2259         CC->room.QRhighest = highest_msg;
2260         lputroom(&CC->room);
2261
2262         /* Perform replication checks if necessary */
2263         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2264                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2265
2266                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2267                         msgid = msgs_to_be_merged[i];
2268
2269                         if (supplied_msg != NULL) {
2270                                 msg = supplied_msg;
2271                         }
2272                         else {
2273                                 msg = CtdlFetchMessage(msgid, 0);
2274                         }
2275
2276                         if (msg != NULL) {
2277                                 ReplicationChecks(msg);
2278
2279                                 /* If the message has an Exclusive ID, index that... */
2280                                 if (msg->cm_fields['E'] != NULL) {
2281                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2282                                 }
2283
2284                                 /* Free up the memory we may have allocated */
2285                                 if (msg != supplied_msg) {
2286                                         CtdlFreeMessage(msg);
2287                                 }
2288                         }
2289
2290                 }
2291         }
2292
2293         else {
2294                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2295         }
2296
2297         /* Submit this room for processing by hooks */
2298         PerformRoomHooks(&CC->room);
2299
2300         /* Go back to the room we were in before we wandered here... */
2301         getroom(&CC->room, hold_rm);
2302
2303         /* Bump the reference count for all messages which were merged */
2304         for (i=0; i<num_msgs_to_be_merged; ++i) {
2305                 AdjRefCount(msgs_to_be_merged[i], +1);
2306         }
2307
2308         /* Free up memory... */
2309         if (msgs_to_be_merged != NULL) {
2310                 free(msgs_to_be_merged);
2311         }
2312
2313         /* Return success. */
2314         return (0);
2315 }
2316
2317
2318 /*
2319  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2320  * a single message.
2321  */
2322 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2323                         int do_repl_check, struct CtdlMessage *supplied_msg)
2324 {
2325         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2326 }
2327
2328
2329
2330
2331 /*
2332  * Message base operation to save a new message to the message store
2333  * (returns new message number)
2334  *
2335  * This is the back end for CtdlSubmitMsg() and should not be directly
2336  * called by server-side modules.
2337  *
2338  */
2339 long send_message(struct CtdlMessage *msg) {
2340         long newmsgid;
2341         long retval;
2342         char msgidbuf[256];
2343         struct ser_ret smr;
2344         int is_bigmsg = 0;
2345         char *holdM = NULL;
2346
2347         /* Get a new message number */
2348         newmsgid = get_new_message_number();
2349         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2350
2351         /* Generate an ID if we don't have one already */
2352         if (msg->cm_fields['I']==NULL) {
2353                 msg->cm_fields['I'] = strdup(msgidbuf);
2354         }
2355
2356         /* If the message is big, set its body aside for storage elsewhere */
2357         if (msg->cm_fields['M'] != NULL) {
2358                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2359                         is_bigmsg = 1;
2360                         holdM = msg->cm_fields['M'];
2361                         msg->cm_fields['M'] = NULL;
2362                 }
2363         }
2364
2365         /* Serialize our data structure for storage in the database */
2366         serialize_message(&smr, msg);
2367
2368         if (is_bigmsg) {
2369                 msg->cm_fields['M'] = holdM;
2370         }
2371
2372         if (smr.len == 0) {
2373                 cprintf("%d Unable to serialize message\n",
2374                         ERROR + INTERNAL_ERROR);
2375                 return (-1L);
2376         }
2377
2378         /* Write our little bundle of joy into the message base */
2379         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2380                       smr.ser, smr.len) < 0) {
2381                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2382                 retval = 0L;
2383         } else {
2384                 if (is_bigmsg) {
2385                         cdb_store(CDB_BIGMSGS,
2386                                 &newmsgid,
2387                                 (int)sizeof(long),
2388                                 holdM,
2389                                 (strlen(holdM) + 1)
2390                         );
2391                 }
2392                 retval = newmsgid;
2393         }
2394
2395         /* Free the memory we used for the serialized message */
2396         free(smr.ser);
2397
2398         /* Return the *local* message ID to the caller
2399          * (even if we're storing an incoming network message)
2400          */
2401         return(retval);
2402 }
2403
2404
2405
2406 /*
2407  * Serialize a struct CtdlMessage into the format used on disk and network.
2408  *
2409  * This function loads up a "struct ser_ret" (defined in server.h) which
2410  * contains the length of the serialized message and a pointer to the
2411  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2412  */
2413 void serialize_message(struct ser_ret *ret,             /* return values */
2414                         struct CtdlMessage *msg)        /* unserialized msg */
2415 {
2416         size_t wlen, fieldlen;
2417         int i;
2418         static char *forder = FORDER;
2419
2420         /*
2421          * Check for valid message format
2422          */
2423         if (is_valid_message(msg) == 0) {
2424                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2425                 ret->len = 0;
2426                 ret->ser = NULL;
2427                 return;
2428         }
2429
2430         ret->len = 3;
2431         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2432                 ret->len = ret->len +
2433                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2434
2435         ret->ser = malloc(ret->len);
2436         if (ret->ser == NULL) {
2437                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2438                         (long)ret->len, strerror(errno));
2439                 ret->len = 0;
2440                 ret->ser = NULL;
2441                 return;
2442         }
2443
2444         ret->ser[0] = 0xFF;
2445         ret->ser[1] = msg->cm_anon_type;
2446         ret->ser[2] = msg->cm_format_type;
2447         wlen = 3;
2448
2449         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2450                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2451                 ret->ser[wlen++] = (char)forder[i];
2452                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2453                 wlen = wlen + fieldlen + 1;
2454         }
2455         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2456                 (long)ret->len, (long)wlen);
2457
2458         return;
2459 }
2460
2461
2462 /*
2463  * Serialize a struct CtdlMessage into the format used on disk and network.
2464  *
2465  * This function loads up a "struct ser_ret" (defined in server.h) which
2466  * contains the length of the serialized message and a pointer to the
2467  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2468  */
2469 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2470                   long Siz)                     /* how many chars ? */
2471 {
2472         size_t wlen;
2473         int i;
2474         static char *forder = FORDER;
2475         char *buf;
2476
2477         /*
2478          * Check for valid message format
2479          */
2480         if (is_valid_message(msg) == 0) {
2481                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2482                 return;
2483         }
2484
2485         buf = (char*) malloc (Siz + 1);
2486
2487         wlen = 3;
2488
2489         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2490                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i],
2491                                    msg->cm_fields[(int)forder[i]]);
2492                         client_write (buf, strlen(buf));
2493                 }
2494
2495         return;
2496 }
2497
2498
2499
2500 /*
2501  * Check to see if any messages already exist in the current room which
2502  * carry the same Exclusive ID as this one.  If any are found, delete them.
2503  */
2504 void ReplicationChecks(struct CtdlMessage *msg) {
2505         long old_msgnum = (-1L);
2506
2507         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2508
2509         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2510                 CC->room.QRname);
2511
2512         /* No exclusive id?  Don't do anything. */
2513         if (msg == NULL) return;
2514         if (msg->cm_fields['E'] == NULL) return;
2515         if (IsEmptyStr(msg->cm_fields['E'])) return;
2516         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2517                 msg->cm_fields['E'], CC->room.QRname);*/
2518
2519         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2520         if (old_msgnum > 0L) {
2521                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2522                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2523         }
2524 }
2525
2526
2527
2528 /*
2529  * Save a message to disk and submit it into the delivery system.
2530  */
2531 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2532                    struct recptypes *recps,     /* recipients (if mail) */
2533                    char *force,                 /* force a particular room? */
2534                    int flags                    /* should the bessage be exported clean? */
2535 ) {
2536         char submit_filename[128];
2537         char generated_timestamp[32];
2538         char hold_rm[ROOMNAMELEN];
2539         char actual_rm[ROOMNAMELEN];
2540         char force_room[ROOMNAMELEN];
2541         char content_type[SIZ];                 /* We have to learn this */
2542         char recipient[SIZ];
2543         long newmsgid;
2544         char *mptr = NULL;
2545         struct ctdluser userbuf;
2546         int a, i;
2547         struct MetaData smi;
2548         FILE *network_fp = NULL;
2549         static int seqnum = 1;
2550         struct CtdlMessage *imsg = NULL;
2551         char *instr = NULL;
2552         size_t instr_alloc = 0;
2553         struct ser_ret smr;
2554         char *hold_R, *hold_D;
2555         char *collected_addresses = NULL;
2556         struct addresses_to_be_filed *aptr = NULL;
2557         char *saved_rfc822_version = NULL;
2558         int qualified_for_journaling = 0;
2559         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2560
2561         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2562         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2563
2564         /* If this message has no timestamp, we take the liberty of
2565          * giving it one, right now.
2566          */
2567         if (msg->cm_fields['T'] == NULL) {
2568                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2569                 msg->cm_fields['T'] = strdup(generated_timestamp);
2570         }
2571
2572         /* If this message has no path, we generate one.
2573          */
2574         if (msg->cm_fields['P'] == NULL) {
2575                 if (msg->cm_fields['A'] != NULL) {
2576                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2577                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2578                                 if (isspace(msg->cm_fields['P'][a])) {
2579                                         msg->cm_fields['P'][a] = ' ';
2580                                 }
2581                         }
2582                 }
2583                 else {
2584                         msg->cm_fields['P'] = strdup("unknown");
2585                 }
2586         }
2587
2588         if (force == NULL) {
2589                 strcpy(force_room, "");
2590         }
2591         else {
2592                 strcpy(force_room, force);
2593         }
2594
2595         /* Learn about what's inside, because it's what's inside that counts */
2596         if (msg->cm_fields['M'] == NULL) {
2597                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2598                 return(-2);
2599         }
2600
2601         switch (msg->cm_format_type) {
2602         case 0:
2603                 strcpy(content_type, "text/x-citadel-variformat");
2604                 break;
2605         case 1:
2606                 strcpy(content_type, "text/plain");
2607                 break;
2608         case 4:
2609                 strcpy(content_type, "text/plain");
2610                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2611                 if (mptr != NULL) {
2612                         char *aptr;
2613                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2614                         striplt(content_type);
2615                         aptr = content_type;
2616                         while (!IsEmptyStr(aptr)) {
2617                                 if ((*aptr == ';')
2618                                     || (*aptr == ' ')
2619                                     || (*aptr == 13)
2620                                     || (*aptr == 10)) {
2621                                         *aptr = 0;
2622                                 }
2623                                 else aptr++;
2624                         }
2625                 }
2626         }
2627
2628         /* Goto the correct room */
2629         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2630         strcpy(hold_rm, CCC->room.QRname);
2631         strcpy(actual_rm, CCC->room.QRname);
2632         if (recps != NULL) {
2633                 strcpy(actual_rm, SENTITEMS);
2634         }
2635
2636         /* If the user is a twit, move to the twit room for posting */
2637         if (TWITDETECT) {
2638                 if (CCC->user.axlevel == 2) {
2639                         strcpy(hold_rm, actual_rm);
2640                         strcpy(actual_rm, config.c_twitroom);
2641                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2642                 }
2643         }
2644
2645         /* ...or if this message is destined for Aide> then go there. */
2646         if (!IsEmptyStr(force_room)) {
2647                 strcpy(actual_rm, force_room);
2648         }
2649
2650         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2651         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2652                 /* getroom(&CCC->room, actual_rm); */
2653                 usergoto(actual_rm, 0, 1, NULL, NULL);
2654         }
2655
2656         /*
2657          * If this message has no O (room) field, generate one.
2658          */
2659         if (msg->cm_fields['O'] == NULL) {
2660                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2661         }
2662
2663         /* Perform "before save" hooks (aborting if any return nonzero) */
2664         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2665         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2666
2667         /*
2668          * If this message has an Exclusive ID, and the room is replication
2669          * checking enabled, then do replication checks.
2670          */
2671         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2672                 ReplicationChecks(msg);
2673         }
2674
2675         /* Save it to disk */
2676         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2677         newmsgid = send_message(msg);
2678         if (newmsgid <= 0L) return(-5);
2679
2680         /* Write a supplemental message info record.  This doesn't have to
2681          * be a critical section because nobody else knows about this message
2682          * yet.
2683          */
2684         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2685         memset(&smi, 0, sizeof(struct MetaData));
2686         smi.meta_msgnum = newmsgid;
2687         smi.meta_refcount = 0;
2688         safestrncpy(smi.meta_content_type, content_type,
2689                         sizeof smi.meta_content_type);
2690
2691         /*
2692          * Measure how big this message will be when rendered as RFC822.
2693          * We do this for two reasons:
2694          * 1. We need the RFC822 length for the new metadata record, so the
2695          *    POP and IMAP services don't have to calculate message lengths
2696          *    while the user is waiting (multiplied by potentially hundreds
2697          *    or thousands of messages).
2698          * 2. If journaling is enabled, we will need an RFC822 version of the
2699          *    message to attach to the journalized copy.
2700          */
2701         if (CCC->redirect_buffer != NULL) {
2702                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2703                 abort();
2704         }
2705         CCC->redirect_buffer = malloc(SIZ);
2706         CCC->redirect_len = 0;
2707         CCC->redirect_alloc = SIZ;
2708         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
2709         smi.meta_rfc822_length = CCC->redirect_len;
2710         saved_rfc822_version = CCC->redirect_buffer;
2711         CCC->redirect_buffer = NULL;
2712         CCC->redirect_len = 0;
2713         CCC->redirect_alloc = 0;
2714
2715         PutMetaData(&smi);
2716
2717         /* Now figure out where to store the pointers */
2718         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2719
2720         /* If this is being done by the networker delivering a private
2721          * message, we want to BYPASS saving the sender's copy (because there
2722          * is no local sender; it would otherwise go to the Trashcan).
2723          */
2724         if ((!CCC->internal_pgm) || (recps == NULL)) {
2725                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2726                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2727                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2728                 }
2729         }
2730
2731         /* For internet mail, drop a copy in the outbound queue room */
2732         if (recps != NULL)
2733          if (recps->num_internet > 0) {
2734                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2735         }
2736
2737         /* If other rooms are specified, drop them there too. */
2738         if (recps != NULL)
2739          if (recps->num_room > 0)
2740           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2741                 extract_token(recipient, recps->recp_room, i,
2742                                         '|', sizeof recipient);
2743                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2744                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2745         }
2746
2747         /* Bump this user's messages posted counter. */
2748         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2749         lgetuser(&CCC->user, CCC->curr_user);
2750         CCC->user.posted = CCC->user.posted + 1;
2751         lputuser(&CCC->user);
2752
2753         /* If this is private, local mail, make a copy in the
2754          * recipient's mailbox and bump the reference count.
2755          */
2756         if (recps != NULL)
2757          if (recps->num_local > 0)
2758           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2759                 extract_token(recipient, recps->recp_local, i,
2760                                         '|', sizeof recipient);
2761                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2762                         recipient);
2763                 if (getuser(&userbuf, recipient) == 0) {
2764                         // Add a flag so the Funambol module knows its mail
2765                         msg->cm_fields['W'] = strdup(recipient);
2766                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2767                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2768                         BumpNewMailCounter(userbuf.usernum);
2769                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2770                         /* Generate a instruction message for the Funambol notification
2771                          * server, in the same style as the SMTP queue
2772                          */
2773                            instr_alloc = 1024;
2774                            instr = malloc(instr_alloc);
2775                            snprintf(instr, instr_alloc,
2776                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2777                         "bounceto|%s@%s\n",
2778                         SPOOLMIME, newmsgid, (long)time(NULL),
2779                         msg->cm_fields['A'], msg->cm_fields['N']
2780                         );
2781
2782                            imsg = malloc(sizeof(struct CtdlMessage));
2783                            memset(imsg, 0, sizeof(struct CtdlMessage));
2784                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2785                            imsg->cm_anon_type = MES_NORMAL;
2786                            imsg->cm_format_type = FMT_RFC822;
2787                            imsg->cm_fields['A'] = strdup("Citadel");
2788                            imsg->cm_fields['J'] = strdup("do not journal");
2789                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2790                            imsg->cm_fields['W'] = strdup(recipient);
2791                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM, 0);
2792                            CtdlFreeMessage(imsg);
2793                         }
2794                 }
2795                 else {
2796                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2797                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2798                                 newmsgid, 0, msg);
2799                 }
2800         }
2801
2802         /* Perform "after save" hooks */
2803         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2804         PerformMessageHooks(msg, EVT_AFTERSAVE);
2805
2806         /* For IGnet mail, we have to save a new copy into the spooler for
2807          * each recipient, with the R and D fields set to the recipient and
2808          * destination-node.  This has two ugly side effects: all other
2809          * recipients end up being unlisted in this recipient's copy of the
2810          * message, and it has to deliver multiple messages to the same
2811          * node.  We'll revisit this again in a year or so when everyone has
2812          * a network spool receiver that can handle the new style messages.
2813          */
2814         if (recps != NULL)
2815          if (recps->num_ignet > 0)
2816           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2817                 extract_token(recipient, recps->recp_ignet, i,
2818                                 '|', sizeof recipient);
2819
2820                 hold_R = msg->cm_fields['R'];
2821                 hold_D = msg->cm_fields['D'];
2822                 msg->cm_fields['R'] = malloc(SIZ);
2823                 msg->cm_fields['D'] = malloc(128);
2824                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2825                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2826
2827                 serialize_message(&smr, msg);
2828                 if (smr.len > 0) {
2829                         snprintf(submit_filename, sizeof submit_filename,
2830                                          "%s/netmail.%04lx.%04x.%04x",
2831                                          ctdl_netin_dir,
2832                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2833                         network_fp = fopen(submit_filename, "wb+");
2834                         if (network_fp != NULL) {
2835                                 fwrite(smr.ser, smr.len, 1, network_fp);
2836                                 fclose(network_fp);
2837                         }
2838                         free(smr.ser);
2839                 }
2840
2841                 free(msg->cm_fields['R']);
2842                 free(msg->cm_fields['D']);
2843                 msg->cm_fields['R'] = hold_R;
2844                 msg->cm_fields['D'] = hold_D;
2845         }
2846
2847         /* Go back to the room we started from */
2848         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2849         if (strcasecmp(hold_rm, CCC->room.QRname))
2850                 usergoto(hold_rm, 0, 1, NULL, NULL);
2851
2852         /* For internet mail, generate delivery instructions.
2853          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2854          * not happen because the delivery instructions message does not
2855          * contain a recipient.
2856          */
2857         if (recps != NULL)
2858          if (recps->num_internet > 0) {
2859                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2860                 instr_alloc = 1024;
2861                 instr = malloc(instr_alloc);
2862                 snprintf(instr, instr_alloc,
2863                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2864                         "bounceto|%s@%s\n",
2865                         SPOOLMIME, newmsgid, (long)time(NULL),
2866                         msg->cm_fields['A'], msg->cm_fields['N']
2867                 );
2868
2869                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2870                         size_t tmp = strlen(instr);
2871                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2872                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2873                                 instr_alloc = instr_alloc * 2;
2874                                 instr = realloc(instr, instr_alloc);
2875                         }
2876                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2877                 }
2878
2879                 imsg = malloc(sizeof(struct CtdlMessage));
2880                 memset(imsg, 0, sizeof(struct CtdlMessage));
2881                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2882                 imsg->cm_anon_type = MES_NORMAL;
2883                 imsg->cm_format_type = FMT_RFC822;
2884                 imsg->cm_fields['A'] = strdup("Citadel");
2885                 imsg->cm_fields['J'] = strdup("do not journal");
2886                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2887                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
2888                 CtdlFreeMessage(imsg);
2889         }
2890
2891         /*
2892          * Any addresses to harvest for someone's address book?
2893          */
2894         if ( (CCC->logged_in) && (recps != NULL) ) {
2895                 collected_addresses = harvest_collected_addresses(msg);
2896         }
2897
2898         if (collected_addresses != NULL) {
2899                 begin_critical_section(S_ATBF);
2900                 aptr = (struct addresses_to_be_filed *)
2901                         malloc(sizeof(struct addresses_to_be_filed));
2902                 aptr->next = atbf;
2903                 MailboxName(actual_rm, sizeof actual_rm,
2904                         &CCC->user, USERCONTACTSROOM);
2905                 aptr->roomname = strdup(actual_rm);
2906                 aptr->collected_addresses = collected_addresses;
2907                 atbf = aptr;
2908                 end_critical_section(S_ATBF);
2909         }
2910
2911         /*
2912          * Determine whether this message qualifies for journaling.
2913          */
2914         if (msg->cm_fields['J'] != NULL) {
2915                 qualified_for_journaling = 0;
2916         }
2917         else {
2918                 if (recps == NULL) {
2919                         qualified_for_journaling = config.c_journal_pubmsgs;
2920                 }
2921                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2922                         qualified_for_journaling = config.c_journal_email;
2923                 }
2924                 else {
2925                         qualified_for_journaling = config.c_journal_pubmsgs;
2926                 }
2927         }
2928
2929         /*
2930          * Do we have to perform journaling?  If so, hand off the saved
2931          * RFC822 version will be handed off to the journaler for background
2932          * submit.  Otherwise, we have to free the memory ourselves.
2933          */
2934         if (saved_rfc822_version != NULL) {
2935                 if (qualified_for_journaling) {
2936                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2937                 }
2938                 else {
2939                         free(saved_rfc822_version);
2940                 }
2941         }
2942
2943         /* Done. */
2944         return(newmsgid);
2945 }
2946
2947
2948
2949
2950
2951 /*
2952  * Convenience function for generating small administrative messages.
2953  */
2954 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text,
2955                         int format_type, char *subject)
2956 {
2957         struct CtdlMessage *msg;
2958         struct recptypes *recp = NULL;
2959
2960         msg = malloc(sizeof(struct CtdlMessage));
2961         memset(msg, 0, sizeof(struct CtdlMessage));
2962         msg->cm_magic = CTDLMESSAGE_MAGIC;
2963         msg->cm_anon_type = MES_NORMAL;
2964         msg->cm_format_type = format_type;
2965
2966         if (from != NULL) {
2967                 msg->cm_fields['A'] = strdup(from);
2968         }
2969         else if (fromaddr != NULL) {
2970                 msg->cm_fields['A'] = strdup(fromaddr);
2971                 if (strchr(msg->cm_fields['A'], '@')) {
2972                         *strchr(msg->cm_fields['A'], '@') = 0;
2973                 }
2974         }
2975         else {
2976                 msg->cm_fields['A'] = strdup("Citadel");
2977         }
2978
2979         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
2980         if (room != NULL) msg->cm_fields['O'] = strdup(room);
2981         msg->cm_fields['N'] = strdup(NODENAME);
2982         if (to != NULL) {
2983                 msg->cm_fields['R'] = strdup(to);
2984                 recp = validate_recipients(to, NULL, 0);
2985         }
2986         if (subject != NULL) {
2987                 msg->cm_fields['U'] = strdup(subject);
2988         }
2989         msg->cm_fields['M'] = strdup(text);
2990
2991         CtdlSubmitMsg(msg, recp, room, 0);
2992         CtdlFreeMessage(msg);
2993         if (recp != NULL) free_recipients(recp);
2994 }
2995
2996
2997
2998 /*
2999  * Back end function used by CtdlMakeMessage() and similar functions
3000  */
3001 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
3002                         size_t maxlen,          /* maximum message length */
3003                         char *exist,            /* if non-null, append to it;
3004                                                    exist is ALWAYS freed  */
3005                         int crlf,               /* CRLF newlines instead of LF */
3006                         int sock                /* socket handle or 0 for this session's client socket */
3007                         ) {
3008         char buf[1024];
3009         int linelen;
3010         size_t message_len = 0;
3011         size_t buffer_len = 0;
3012         char *ptr;
3013         char *m;
3014         int flushing = 0;
3015         int finished = 0;
3016         int dotdot = 0;
3017
3018         if (exist == NULL) {
3019                 m = malloc(4096);
3020                 m[0] = 0;
3021                 buffer_len = 4096;
3022                 message_len = 0;
3023         }
3024         else {
3025                 message_len = strlen(exist);
3026                 buffer_len = message_len + 4096;
3027                 m = realloc(exist, buffer_len);
3028                 if (m == NULL) {
3029                         free(exist);
3030                         return m;
3031                 }
3032         }
3033
3034         /* Do we need to change leading ".." to "." for SMTP escaping? */
3035         if (!strcmp(terminator, ".")) {
3036                 dotdot = 1;
3037         }
3038
3039         /* flush the input if we have nowhere to store it */
3040         if (m == NULL) {
3041                 flushing = 1;
3042         }
3043
3044         /* read in the lines of message text one by one */
3045         do {
3046                 if (sock > 0) {
3047                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3048                 }
3049                 else {
3050                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3051                 }
3052                 if (!strcmp(buf, terminator)) finished = 1;
3053                 if (crlf) {
3054                         strcat(buf, "\r\n");
3055                 }
3056                 else {
3057                         strcat(buf, "\n");
3058                 }
3059
3060                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3061                 if (dotdot) {
3062                         if (!strncmp(buf, "..", 2)) {
3063                                 strcpy(buf, &buf[1]);
3064                         }
3065                 }
3066
3067                 if ( (!flushing) && (!finished) ) {
3068                         /* Measure the line */
3069                         linelen = strlen(buf);
3070
3071                         /* augment the buffer if we have to */
3072                         if ((message_len + linelen) >= buffer_len) {
3073                                 ptr = realloc(m, (buffer_len * 2) );
3074                                 if (ptr == NULL) {      /* flush if can't allocate */
3075                                         flushing = 1;
3076                                 } else {
3077                                         buffer_len = (buffer_len * 2);
3078                                         m = ptr;
3079                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3080                                 }
3081                         }
3082
3083                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3084                         * using functions like strcat() and strlen() because they
3085                         * traverse the entire buffer upon every call, and doing that
3086                         * for a multi-megabyte message slows it down beyond usability.
3087                         */
3088                         strcpy(&m[message_len], buf);
3089                         message_len += linelen;
3090                 }
3091
3092                 /* if we've hit the max msg length, flush the rest */
3093                 if (message_len >= maxlen) flushing = 1;
3094
3095         } while (!finished);
3096         return(m);
3097 }
3098
3099
3100
3101
3102 /*
3103  * Build a binary message to be saved on disk.
3104  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3105  * will become part of the message.  This means you are no longer
3106  * responsible for managing that memory -- it will be freed along with
3107  * the rest of the fields when CtdlFreeMessage() is called.)
3108  */
3109
3110 struct CtdlMessage *CtdlMakeMessage(
3111         struct ctdluser *author,        /* author's user structure */
3112         char *recipient,                /* NULL if it's not mail */
3113         char *recp_cc,                  /* NULL if it's not mail */
3114         char *room,                     /* room where it's going */
3115         int type,                       /* see MES_ types in header file */
3116         int format_type,                /* variformat, plain text, MIME... */
3117         char *fake_name,                /* who we're masquerading as */
3118         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3119         char *subject,                  /* Subject (optional) */
3120         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3121         char *preformatted_text,        /* ...or NULL to read text from client */
3122         char *references                /* Thread references */
3123 ) {
3124         char dest_node[256];
3125         char buf[1024];
3126         struct CtdlMessage *msg;
3127
3128         msg = malloc(sizeof(struct CtdlMessage));
3129         memset(msg, 0, sizeof(struct CtdlMessage));
3130         msg->cm_magic = CTDLMESSAGE_MAGIC;
3131         msg->cm_anon_type = type;
3132         msg->cm_format_type = format_type;
3133
3134         /* Don't confuse the poor folks if it's not routed mail. */
3135         strcpy(dest_node, "");
3136
3137         striplt(recipient);
3138         striplt(recp_cc);
3139
3140         /* Path or Return-Path */
3141         if (my_email == NULL) my_email = "";
3142
3143         if (!IsEmptyStr(my_email)) {
3144                 msg->cm_fields['P'] = strdup(my_email);
3145         }
3146         else {
3147                 snprintf(buf, sizeof buf, "%s", author->fullname);
3148                 msg->cm_fields['P'] = strdup(buf);
3149         }
3150         convert_spaces_to_underscores(msg->cm_fields['P']);
3151
3152         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3153         msg->cm_fields['T'] = strdup(buf);
3154
3155         if (fake_name[0])                                       /* author */
3156                 msg->cm_fields['A'] = strdup(fake_name);
3157         else
3158                 msg->cm_fields['A'] = strdup(author->fullname);
3159
3160         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3161                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3162         }
3163         else {
3164                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3165         }
3166
3167         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3168         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3169
3170         if (recipient[0] != 0) {
3171                 msg->cm_fields['R'] = strdup(recipient);
3172         }
3173         if (recp_cc[0] != 0) {
3174                 msg->cm_fields['Y'] = strdup(recp_cc);
3175         }
3176         if (dest_node[0] != 0) {
3177                 msg->cm_fields['D'] = strdup(dest_node);
3178         }
3179
3180         if (!IsEmptyStr(my_email)) {
3181                 msg->cm_fields['F'] = strdup(my_email);
3182         }
3183         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3184                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3185         }
3186
3187         if (subject != NULL) {
3188                 long length;
3189                 striplt(subject);
3190                 length = strlen(subject);
3191                 if (length > 0) {
3192                         long i;
3193                         long IsAscii;
3194                         IsAscii = -1;
3195                         i = 0;
3196                         while ((subject[i] != '\0') &&
3197                                (IsAscii = isascii(subject[i]) != 0 ))
3198                                 i++;
3199                         if (IsAscii != 0)
3200                                 msg->cm_fields['U'] = strdup(subject);
3201                         else /* ok, we've got utf8 in the string. */
3202                         {
3203                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3204                         }
3205
3206                 }
3207         }
3208
3209         if (supplied_euid != NULL) {
3210                 msg->cm_fields['E'] = strdup(supplied_euid);
3211         }
3212
3213         if (references != NULL) {
3214                 if (!IsEmptyStr(references)) {
3215                         msg->cm_fields['W'] = strdup(references);
3216                 }
3217         }
3218
3219         if (preformatted_text != NULL) {
3220                 msg->cm_fields['M'] = preformatted_text;
3221         }
3222         else {
3223                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3224         }
3225
3226         return(msg);
3227 }
3228
3229
3230 /*
3231  * Check to see whether we have permission to post a message in the current
3232  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3233  * returns 0 on success.
3234  */
3235 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf,
3236                                           size_t n,
3237                                           const char* RemoteIdentifier,
3238                                           int PostPublic) {
3239         int ra;
3240
3241         if (!(CC->logged_in) &&
3242             (PostPublic == POST_LOGGED_IN)) {
3243                 snprintf(errmsgbuf, n, "Not logged in.");
3244                 return (ERROR + NOT_LOGGED_IN);
3245         }
3246         else if (PostPublic == CHECK_EXISTANCE) {
3247                 return (0); // We're Evaling whether a recipient exists
3248         }
3249         else if (!(CC->logged_in)) {
3250
3251                 if ((CC->room.QRflags & QR_READONLY)) {
3252                         snprintf(errmsgbuf, n, "Not logged in.");
3253                         return (ERROR + NOT_LOGGED_IN);
3254                 }
3255                 if (CC->room.QRflags2 & QR2_MODERATED) {
3256                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3257                         return (ERROR + NOT_LOGGED_IN);
3258                 }
3259                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3260                         SpoolControl *sc;
3261                         char filename[SIZ];
3262                         int found;
3263
3264                         if (RemoteIdentifier == NULL)
3265                         {
3266                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3267                                 return (ERROR + USERNAME_REQUIRED);
3268                         }
3269
3270                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3271                         begin_critical_section(S_NETCONFIGS);
3272                         if (!read_spoolcontrol_file(&sc, filename))
3273                         {
3274                                 end_critical_section(S_NETCONFIGS);
3275                                 snprintf(errmsgbuf, n,
3276                                         "This mailing list only accepts posts from subscribers.");
3277                                 return (ERROR + NO_SUCH_USER);
3278                         }
3279                         end_critical_section(S_NETCONFIGS);
3280                         found = is_recipient (sc, RemoteIdentifier);
3281                         free_spoolcontrol_struct(&sc);
3282                         if (found) {
3283                                 return (0);
3284                         }
3285                         else {
3286                                 snprintf(errmsgbuf, n,
3287                                         "This mailing list only accepts posts from subscribers.");
3288                                 return (ERROR + NO_SUCH_USER);
3289                         }
3290                 }
3291                 return (0);
3292
3293         }
3294
3295         if ((CC->user.axlevel < 2)
3296             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3297                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3298                                 "(except in %s> to sysop)", MAILROOM);
3299                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3300         }
3301
3302         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3303         if (!(ra & UA_POSTALLOWED)) {
3304                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3305                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3306         }
3307
3308         strcpy(errmsgbuf, "Ok");
3309         return(0);
3310 }
3311
3312
3313 /*
3314  * Check to see if the specified user has Internet mail permission
3315  * (returns nonzero if permission is granted)
3316  */
3317 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3318
3319         /* Do not allow twits to send Internet mail */
3320         if (who->axlevel <= 2) return(0);
3321
3322         /* Globally enabled? */
3323         if (config.c_restrict == 0) return(1);
3324
3325         /* User flagged ok? */
3326         if (who->flags & US_INTERNET) return(2);
3327
3328         /* Aide level access? */
3329         if (who->axlevel >= 6) return(3);
3330
3331         /* No mail for you! */
3332         return(0);
3333 }
3334
3335
3336 /*
3337  * Validate recipients, count delivery types and errors, and handle aliasing
3338  * FIXME check for dupes!!!!!
3339  *
3340  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
3341  * were specified, or the number of addresses found invalid.
3342  *
3343  * Caller needs to free the result using free_recipients()
3344  */
3345 struct recptypes *validate_recipients(char *supplied_recipients,
3346                                       const char *RemoteIdentifier,
3347                                       int Flags) {
3348         struct recptypes *ret;
3349         char *recipients = NULL;
3350         char this_recp[256];
3351         char this_recp_cooked[256];
3352         char append[SIZ];
3353         int num_recps = 0;
3354         int i, j;
3355         int mailtype;
3356         int invalid;
3357         struct ctdluser tempUS;
3358         struct ctdlroom tempQR;
3359         struct ctdlroom tempQR2;
3360         int err = 0;
3361         char errmsg[SIZ];
3362         int in_quotes = 0;
3363
3364         /* Initialize */
3365         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3366         if (ret == NULL) return(NULL);
3367
3368         /* Set all strings to null and numeric values to zero */
3369         memset(ret, 0, sizeof(struct recptypes));
3370
3371         if (supplied_recipients == NULL) {
3372                 recipients = strdup("");
3373         }
3374         else {
3375                 recipients = strdup(supplied_recipients);
3376         }
3377
3378         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3379          * actually need, but it's healthier for the heap than doing lots of tiny
3380          * realloc() calls instead.
3381          */
3382
3383         ret->errormsg = malloc(strlen(recipients) + 1024);
3384         ret->recp_local = malloc(strlen(recipients) + 1024);
3385         ret->recp_internet = malloc(strlen(recipients) + 1024);
3386         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3387         ret->recp_room = malloc(strlen(recipients) + 1024);
3388         ret->display_recp = malloc(strlen(recipients) + 1024);
3389
3390         ret->errormsg[0] = 0;
3391         ret->recp_local[0] = 0;
3392         ret->recp_internet[0] = 0;
3393         ret->recp_ignet[0] = 0;
3394         ret->recp_room[0] = 0;
3395         ret->display_recp[0] = 0;
3396
3397         ret->recptypes_magic = RECPTYPES_MAGIC;
3398
3399         /* Change all valid separator characters to commas */
3400         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3401                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3402                         recipients[i] = ',';
3403                 }
3404         }
3405
3406         /* Now start extracting recipients... */
3407
3408         while (!IsEmptyStr(recipients)) {
3409
3410                 for (i=0; i<=strlen(recipients); ++i) {
3411                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3412                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3413                                 safestrncpy(this_recp, recipients, i+1);
3414                                 this_recp[i] = 0;
3415                                 if (recipients[i] == ',') {
3416                                         strcpy(recipients, &recipients[i+1]);
3417                                 }
3418                                 else {
3419                                         strcpy(recipients, "");
3420                                 }
3421                                 break;
3422                         }
3423                 }
3424
3425                 striplt(this_recp);
3426                 if (IsEmptyStr(this_recp))
3427                         break;
3428                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3429                 ++num_recps;
3430                 mailtype = alias(this_recp);
3431                 mailtype = alias(this_recp);
3432                 mailtype = alias(this_recp);
3433                 j = 0;
3434                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3435                         if (this_recp[j]=='_') {
3436                                 this_recp_cooked[j] = ' ';
3437                         }
3438                         else {
3439                                 this_recp_cooked[j] = this_recp[j];
3440                         }
3441                 }
3442                 this_recp_cooked[j] = '\0';
3443                 invalid = 0;
3444                 errmsg[0] = 0;
3445                 switch(mailtype) {
3446                         case MES_LOCAL:
3447                                 if (!strcasecmp(this_recp, "sysop")) {
3448                                         ++ret->num_room;
3449                                         strcpy(this_recp, config.c_aideroom);
3450                                         if (!IsEmptyStr(ret->recp_room)) {
3451                                                 strcat(ret->recp_room, "|");
3452                                         }
3453                                         strcat(ret->recp_room, this_recp);
3454                                 }
3455                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3456                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3457
3458                                         /* Save room so we can restore it later */
3459                                         tempQR2 = CC->room;
3460                                         CC->room = tempQR;
3461
3462                                         /* Check permissions to send mail to this room */
3463                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg,
3464                                                                                     sizeof errmsg,
3465                                                                                     RemoteIdentifier,
3466                                                                                     Flags
3467                                         );
3468                                         if (err)
3469                                         {
3470                                                 ++ret->num_error;
3471                                                 invalid = 1;
3472                                         }
3473                                         else {
3474                                                 ++ret->num_room;
3475                                                 if (!IsEmptyStr(ret->recp_room)) {
3476                                                         strcat(ret->recp_room, "|");
3477                                                 }
3478                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3479                                         }
3480
3481                                         /* Restore room in case something needs it */
3482                                         CC->room = tempQR2;
3483
3484                                 }
3485                                 else if (getuser(&tempUS, this_recp) == 0) {
3486                                         ++ret->num_local;
3487                                         strcpy(this_recp, tempUS.fullname);
3488                                         if (!IsEmptyStr(ret->recp_local)) {
3489                                                 strcat(ret->recp_local, "|");
3490                                         }
3491                                         strcat(ret->recp_local, this_recp);
3492                                 }
3493                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3494                                         ++ret->num_local;
3495                                         strcpy(this_recp, tempUS.fullname);
3496                                         if (!IsEmptyStr(ret->recp_local)) {
3497                                                 strcat(ret->recp_local, "|");
3498                                         }
3499                                         strcat(ret->recp_local, this_recp);
3500                                 }
3501                                 else {
3502                                         ++ret->num_error;
3503                                         invalid = 1;
3504                                 }
3505                                 break;
3506                         case MES_INTERNET:
3507                                 /* Yes, you're reading this correctly: if the target
3508                                  * domain points back to the local system or an attached
3509                                  * Citadel directory, the address is invalid.  That's
3510                                  * because if the address were valid, we would have
3511                                  * already translated it to a local address by now.
3512                                  */
3513                                 if (IsDirectory(this_recp, 0)) {
3514                                         ++ret->num_error;
3515                                         invalid = 1;
3516                                 }
3517                                 else {
3518                                         ++ret->num_internet;
3519                                         if (!IsEmptyStr(ret->recp_internet)) {
3520                                                 strcat(ret->recp_internet, "|");
3521                                         }
3522                                         strcat(ret->recp_internet, this_recp);
3523                                 }
3524                                 break;
3525                         case MES_IGNET:
3526                                 ++ret->num_ignet;
3527                                 if (!IsEmptyStr(ret->recp_ignet)) {
3528                                         strcat(ret->recp_ignet, "|");
3529                                 }
3530                                 strcat(ret->recp_ignet, this_recp);
3531                                 break;
3532                         case MES_ERROR:
3533                                 ++ret->num_error;
3534                                 invalid = 1;
3535                                 break;
3536                 }
3537                 if (invalid) {
3538                         if (IsEmptyStr(errmsg)) {
3539                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3540                         }
3541                         else {
3542                                 snprintf(append, sizeof append, "%s", errmsg);
3543                         }
3544                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3545                                 if (!IsEmptyStr(ret->errormsg)) {
3546                                         strcat(ret->errormsg, "; ");
3547                                 }
3548                                 strcat(ret->errormsg, append);
3549                         }
3550                 }
3551                 else {
3552                         if (IsEmptyStr(ret->display_recp)) {
3553                                 strcpy(append, this_recp);
3554                         }
3555                         else {
3556                                 snprintf(append, sizeof append, ", %s", this_recp);
3557                         }
3558                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3559                                 strcat(ret->display_recp, append);
3560                         }
3561                 }
3562         }
3563
3564         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3565            ret->num_room + ret->num_error) == 0) {
3566                 ret->num_error = (-1);
3567                 strcpy(ret->errormsg, "No recipients specified.");
3568         }
3569
3570         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3571         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3572         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3573         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3574         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3575         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3576
3577         free(recipients);
3578         return(ret);
3579 }
3580
3581
3582 /*
3583  * Destructor for struct recptypes
3584  */
3585 void free_recipients(struct recptypes *valid) {
3586
3587         if (valid == NULL) {
3588                 return;
3589         }
3590
3591         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3592                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3593                 abort();
3594         }
3595
3596         if (valid->errormsg != NULL)            free(valid->errormsg);
3597         if (valid->recp_local != NULL)          free(valid->recp_local);
3598         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3599         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3600         if (valid->recp_room != NULL)           free(valid->recp_room);
3601         if (valid->display_recp != NULL)        free(valid->display_recp);
3602         free(valid);
3603 }
3604
3605
3606
3607 /*
3608  * message entry  -  mode 0 (normal)
3609  */
3610 void cmd_ent0(char *entargs)
3611 {
3612         int post = 0;
3613         char recp[SIZ];
3614         char cc[SIZ];
3615         char bcc[SIZ];
3616         char supplied_euid[128];
3617         int anon_flag = 0;
3618         int format_type = 0;
3619         char newusername[256];
3620         char newuseremail[256];
3621         struct CtdlMessage *msg;
3622         int anonymous = 0;
3623         char errmsg[SIZ];
3624         int err = 0;
3625         struct recptypes *valid = NULL;
3626         struct recptypes *valid_to = NULL;
3627         struct recptypes *valid_cc = NULL;
3628         struct recptypes *valid_bcc = NULL;
3629         char subject[SIZ];
3630         int subject_required = 0;
3631         int do_confirm = 0;
3632         long msgnum;
3633         int i, j;
3634         char buf[256];
3635         int newuseremail_ok = 0;
3636         char references[SIZ];
3637         char *ptr;
3638
3639         unbuffer_output();
3640
3641         post = extract_int(entargs, 0);
3642         extract_token(recp, entargs, 1, '|', sizeof recp);
3643         anon_flag = extract_int(entargs, 2);
3644         format_type = extract_int(entargs, 3);
3645         extract_token(subject, entargs, 4, '|', sizeof subject);
3646         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3647         do_confirm = extract_int(entargs, 6);
3648         extract_token(cc, entargs, 7, '|', sizeof cc);
3649         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3650         switch(CC->room.QRdefaultview) {
3651                 case VIEW_NOTES:
3652                 case VIEW_WIKI:
3653                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3654                         break;
3655                 default:
3656                         supplied_euid[0] = 0;
3657                         break;
3658         }
3659         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3660         extract_token(references, entargs, 11, '|', sizeof references);
3661         for (ptr=references; *ptr != 0; ++ptr) {
3662                 if (*ptr == '!') *ptr = '|';
3663         }
3664
3665         /* first check to make sure the request is valid. */
3666
3667         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3668         if (err)
3669         {
3670                 cprintf("%d %s\n", err, errmsg);
3671                 return;
3672         }
3673
3674         /* Check some other permission type things. */
3675
3676         if (IsEmptyStr(newusername)) {
3677                 strcpy(newusername, CC->user.fullname);
3678         }
3679         if (  (CC->user.axlevel < 6)
3680            && (strcasecmp(newusername, CC->user.fullname))
3681            && (strcasecmp(newusername, CC->cs_inet_fn))
3682         ) {
3683                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3684                         ERROR + HIGHER_ACCESS_REQUIRED,
3685                         newusername
3686                 );
3687                 return;
3688         }
3689
3690
3691         if (IsEmptyStr(newuseremail)) {
3692                 newuseremail_ok = 1;
3693         }
3694
3695         if (!IsEmptyStr(newuseremail)) {
3696                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3697                         newuseremail_ok = 1;
3698                 }
3699                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3700                         j = num_tokens(CC->cs_inet_other_emails, '|');
3701                         for (i=0; i<j; ++i) {
3702                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3703                                 if (!strcasecmp(newuseremail, buf)) {
3704                                         newuseremail_ok = 1;
3705                                 }
3706                         }
3707                 }
3708         }
3709
3710         if (!newuseremail_ok) {
3711                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3712                         ERROR + HIGHER_ACCESS_REQUIRED,
3713                         newuseremail
3714                 );
3715                 return;
3716         }
3717
3718         CC->cs_flags |= CS_POSTING;
3719
3720         /* In mailbox rooms we have to behave a little differently --
3721          * make sure the user has specified at least one recipient.  Then
3722          * validate the recipient(s).  We do this for the Mail> room, as
3723          * well as any room which has the "Mailbox" view set.
3724          */
3725
3726         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3727            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3728         ) {
3729                 if (CC->user.axlevel < 2) {
3730                         strcpy(recp, "sysop");
3731                         strcpy(cc, "");
3732                         strcpy(bcc, "");
3733                 }
3734
3735                 valid_to = validate_recipients(recp, NULL, 0);
3736                 if (valid_to->num_error > 0) {
3737                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3738                         free_recipients(valid_to);
3739                         return;
3740                 }
3741
3742                 valid_cc = validate_recipients(cc, NULL, 0);
3743                 if (valid_cc->num_error > 0) {
3744                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3745                         free_recipients(valid_to);
3746                         free_recipients(valid_cc);
3747                         return;
3748                 }
3749
3750                 valid_bcc = validate_recipients(bcc, NULL, 0);
3751                 if (valid_bcc->num_error > 0) {
3752                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3753                         free_recipients(valid_to);
3754                         free_recipients(valid_cc);
3755                         free_recipients(valid_bcc);
3756                         return;
3757                 }
3758
3759                 /* Recipient required, but none were specified */
3760                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3761                         free_recipients(valid_to);
3762                         free_recipients(valid_cc);
3763                         free_recipients(valid_bcc);
3764                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3765                         return;
3766                 }
3767
3768                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3769                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3770                                 cprintf("%d You do not have permission "
3771                                         "to send Internet mail.\n",
3772                                         ERROR + HIGHER_ACCESS_REQUIRED);
3773                                 free_recipients(valid_to);
3774                                 free_recipients(valid_cc);
3775                                 free_recipients(valid_bcc);
3776                                 return;
3777                         }
3778                 }
3779
3780                 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)
3781                    && (CC->user.axlevel < 4) ) {
3782                         cprintf("%d Higher access required for network mail.\n",
3783                                 ERROR + HIGHER_ACCESS_REQUIRED);
3784                         free_recipients(valid_to);
3785                         free_recipients(valid_cc);
3786                         free_recipients(valid_bcc);
3787                         return;
3788                 }
3789
3790                 if ((RESTRICT_INTERNET == 1)
3791                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3792                     && ((CC->user.flags & US_INTERNET) == 0)
3793                     && (!CC->internal_pgm)) {
3794                         cprintf("%d You don't have access to Internet mail.\n",
3795                                 ERROR + HIGHER_ACCESS_REQUIRED);
3796                         free_recipients(valid_to);
3797                         free_recipients(valid_cc);
3798                         free_recipients(valid_bcc);
3799                         return;
3800                 }
3801
3802         }
3803
3804         /* Is this a room which has anonymous-only or anonymous-option? */
3805         anonymous = MES_NORMAL;
3806         if (CC->room.QRflags & QR_ANONONLY) {
3807                 anonymous = MES_ANONONLY;
3808         }
3809         if (CC->room.QRflags & QR_ANONOPT) {
3810                 if (anon_flag == 1) {   /* only if the user requested it */
3811                         anonymous = MES_ANONOPT;
3812                 }
3813         }
3814
3815         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3816                 recp[0] = 0;
3817         }
3818
3819         /* Recommend to the client that the use of a message subject is
3820          * strongly recommended in this room, if either the SUBJECTREQ flag
3821          * is set, or if there is one or more Internet email recipients.
3822          */
3823         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3824         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3825         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3826         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3827
3828         /* If we're only checking the validity of the request, return
3829          * success without creating the message.
3830          */
3831         if (post == 0) {
3832                 cprintf("%d %s|%d\n", CIT_OK,
3833                         ((valid_to != NULL) ? valid_to->display_recp : ""),
3834                         subject_required);
3835                 free_recipients(valid_to);
3836                 free_recipients(valid_cc);
3837                 free_recipients(valid_bcc);
3838                 return;
3839         }
3840
3841         /* We don't need these anymore because we'll do it differently below */
3842         free_recipients(valid_to);
3843         free_recipients(valid_cc);
3844         free_recipients(valid_bcc);
3845
3846         /* Read in the message from the client. */
3847         if (do_confirm) {
3848                 cprintf("%d send message\n", START_CHAT_MODE);
3849         } else {
3850                 cprintf("%d send message\n", SEND_LISTING);
3851         }
3852
3853         msg = CtdlMakeMessage(&CC->user, recp, cc,
3854                 CC->room.QRname, anonymous, format_type,
3855                 newusername, newuseremail, subject,
3856                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3857                 NULL, references);
3858
3859         /* Put together one big recipients struct containing to/cc/bcc all in
3860          * one.  This is for the envelope.
3861          */
3862         char *all_recps = malloc(SIZ * 3);
3863         strcpy(all_recps, recp);
3864         if (!IsEmptyStr(cc)) {
3865                 if (!IsEmptyStr(all_recps)) {
3866                         strcat(all_recps, ",");
3867                 }
3868                 strcat(all_recps, cc);
3869         }
3870         if (!IsEmptyStr(bcc)) {
3871                 if (!IsEmptyStr(all_recps)) {
3872                         strcat(all_recps, ",");
3873                 }
3874                 strcat(all_recps, bcc);
3875         }
3876         if (!IsEmptyStr(all_recps)) {
3877                 valid = validate_recipients(all_recps, NULL, 0);
3878         }
3879         else {
3880                 valid = NULL;
3881         }
3882         free(all_recps);
3883
3884         if (msg != NULL) {
3885                 msgnum = CtdlSubmitMsg(msg, valid, "", QP_EADDR);
3886
3887                 if (do_confirm) {
3888                         cprintf("%ld\n", msgnum);
3889                         if (msgnum >= 0L) {
3890                                 cprintf("Message accepted.\n");
3891                         }
3892                         else {
3893                                 cprintf("Internal error.\n");
3894                         }
3895                         if (msg->cm_fields['E'] != NULL) {
3896                                 cprintf("%s\n", msg->cm_fields['E']);
3897                         } else {
3898                                 cprintf("\n");
3899                         }
3900                         cprintf("000\n");
3901                 }
3902
3903                 CtdlFreeMessage(msg);
3904         }
3905         if (valid != NULL) {
3906                 free_recipients(valid);
3907         }
3908         return;
3909 }
3910
3911
3912
3913 /*
3914  * API function to delete messages which match a set of criteria
3915  * (returns the actual number of messages deleted)
3916  */
3917 int CtdlDeleteMessages(char *room_name,         /* which room */
3918                         long *dmsgnums,         /* array of msg numbers to be deleted */
3919                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3920                         char *content_type      /* or "" for any.  regular expressions expected. */
3921 )
3922 {
3923         struct ctdlroom qrbuf;
3924         struct cdbdata *cdbfr;
3925         long *msglist = NULL;
3926         long *dellist = NULL;
3927         int num_msgs = 0;
3928         int i, j;
3929         int num_deleted = 0;
3930         int delete_this;
3931         struct MetaData smi;
3932         regex_t re;
3933         regmatch_t pm;
3934         int need_to_free_re = 0;
3935
3936         if (content_type) if (!IsEmptyStr(content_type)) {
3937                 regcomp(&re, content_type, 0);
3938                 need_to_free_re = 1;
3939         }
3940         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3941                 room_name, num_dmsgnums, content_type);
3942
3943         /* get room record, obtaining a lock... */
3944         if (lgetroom(&qrbuf, room_name) != 0) {
3945                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3946                         room_name);
3947                 if (need_to_free_re) regfree(&re);
3948                 return (0);     /* room not found */
3949         }
3950         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3951
3952         if (cdbfr != NULL) {
3953                 dellist = malloc(cdbfr->len);
3954                 msglist = (long *) cdbfr->ptr;
3955                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
3956                 num_msgs = cdbfr->len / sizeof(long);
3957                 cdb_free(cdbfr);
3958         }
3959         if (num_msgs > 0) {
3960                 for (i = 0; i < num_msgs; ++i) {
3961                         delete_this = 0x00;
3962
3963                         /* Set/clear a bit for each criterion */
3964
3965                         /* 0 messages in the list or a null list means that we are
3966                          * interested in deleting any messages which meet the other criteria.
3967                          */
3968                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
3969                                 delete_this |= 0x01;
3970                         }
3971                         else {
3972                                 for (j=0; j<num_dmsgnums; ++j) {
3973                                         if (msglist[i] == dmsgnums[j]) {
3974                                                 delete_this |= 0x01;
3975                                         }
3976                                 }
3977                         }
3978
3979                         if (IsEmptyStr(content_type)) {
3980                                 delete_this |= 0x02;
3981                         } else {
3982                                 GetMetaData(&smi, msglist[i]);
3983                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
3984                                         delete_this |= 0x02;
3985                                 }
3986                         }
3987
3988                         /* Delete message only if all bits are set */
3989                         if (delete_this == 0x03) {
3990                                 dellist[num_deleted++] = msglist[i];
3991                                 msglist[i] = 0L;
3992                         }
3993                 }
3994
3995                 num_msgs = sort_msglist(msglist, num_msgs);
3996                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
3997                           msglist, (int)(num_msgs * sizeof(long)));
3998
3999                 qrbuf.QRhighest = msglist[num_msgs - 1];
4000         }
4001         lputroom(&qrbuf);
4002
4003         /* Go through the messages we pulled out of the index, and decrement
4004          * their reference counts by 1.  If this is the only room the message
4005          * was in, the reference count will reach zero and the message will
4006          * automatically be deleted from the database.  We do this in a
4007          * separate pass because there might be plug-in hooks getting called,
4008          * and we don't want that happening during an S_ROOMS critical
4009          * section.
4010          */
4011         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4012                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4013                 AdjRefCount(dellist[i], -1);
4014         }
4015
4016         /* Now free the memory we used, and go away. */
4017         if (msglist != NULL) free(msglist);
4018         if (dellist != NULL) free(dellist);
4019         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4020         if (need_to_free_re) regfree(&re);
4021         return (num_deleted);
4022 }
4023
4024
4025
4026 /*
4027  * Check whether the current user has permission to delete messages from
4028  * the current room (returns 1 for yes, 0 for no)
4029  */
4030 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4031         int ra;
4032         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4033         if (ra & UA_DELETEALLOWED) return(1);
4034         return(0);
4035 }
4036
4037
4038
4039
4040 /*
4041  * Delete message from current room
4042  */
4043 void cmd_dele(char *args)
4044 {
4045         int num_deleted;
4046         int i;
4047         char msgset[SIZ];
4048         char msgtok[32];
4049         long *msgs;
4050         int num_msgs = 0;
4051
4052         extract_token(msgset, args, 0, '|', sizeof msgset);
4053         num_msgs = num_tokens(msgset, ',');
4054         if (num_msgs < 1) {
4055                 cprintf("%d Nothing to do.\n", CIT_OK);
4056                 return;
4057         }
4058
4059         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4060                 cprintf("%d Higher access required.\n",
4061                         ERROR + HIGHER_ACCESS_REQUIRED);
4062                 return;
4063         }
4064
4065         /*
4066          * Build our message set to be moved/copied
4067          */
4068         msgs = malloc(num_msgs * sizeof(long));
4069         for (i=0; i<num_msgs; ++i) {
4070                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4071                 msgs[i] = atol(msgtok);
4072         }
4073
4074         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4075         free(msgs);
4076
4077         if (num_deleted) {
4078                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4079                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4080         } else {
4081                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4082         }
4083 }
4084
4085
4086 /*
4087  * Back end API function for moves and deletes (multiple messages)
4088  */
4089 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4090         int err;
4091
4092         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4093         if (err != 0) return(err);
4094
4095         return(0);
4096 }
4097
4098
4099
4100
4101 /*
4102  * move or copy a message to another room
4103  */
4104 void cmd_move(char *args)
4105 {
4106         char msgset[SIZ];
4107         char msgtok[32];
4108         long *msgs;
4109         int num_msgs = 0;
4110
4111         char targ[ROOMNAMELEN];
4112         struct ctdlroom qtemp;
4113         int err;
4114         int is_copy = 0;
4115         int ra;
4116         int permit = 0;
4117         int i;
4118
4119         extract_token(msgset, args, 0, '|', sizeof msgset);
4120         num_msgs = num_tokens(msgset, ',');
4121         if (num_msgs < 1) {
4122                 cprintf("%d Nothing to do.\n", CIT_OK);
4123                 return;
4124         }
4125
4126         extract_token(targ, args, 1, '|', sizeof targ);
4127         convert_room_name_macros(targ, sizeof targ);
4128         targ[ROOMNAMELEN - 1] = 0;
4129         is_copy = extract_int(args, 2);
4130
4131         if (getroom(&qtemp, targ) != 0) {
4132                 cprintf("%d '%s' does not exist.\n",
4133                         ERROR + ROOM_NOT_FOUND, targ);
4134                 return;
4135         }
4136
4137         getuser(&CC->user, CC->curr_user);
4138         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4139
4140         /* Check for permission to perform this operation.
4141          * Remember: "CC->room" is source, "qtemp" is target.
4142          */
4143         permit = 0;
4144
4145         /* Aides can move/copy */
4146         if (CC->user.axlevel >= 6) permit = 1;
4147
4148         /* Room aides can move/copy */
4149         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4150
4151         /* Permit move/copy from personal rooms */
4152         if ((CC->room.QRflags & QR_MAILBOX)
4153            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4154
4155         /* Permit only copy from public to personal room */
4156         if ( (is_copy)
4157            && (!(CC->room.QRflags & QR_MAILBOX))
4158            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4159
4160         /* Permit message removal from collaborative delete rooms */
4161         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4162
4163         /* Users allowed to post into the target room may move into it too. */
4164         if ((CC->room.QRflags & QR_MAILBOX) &&
4165             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4166
4167         /* User must have access to target room */
4168         if (!(ra & UA_KNOWN))  permit = 0;
4169
4170         if (!permit) {
4171                 cprintf("%d Higher access required.\n",
4172                         ERROR + HIGHER_ACCESS_REQUIRED);
4173                 return;
4174         }
4175
4176         /*
4177          * Build our message set to be moved/copied
4178          */
4179         msgs = malloc(num_msgs * sizeof(long));
4180         for (i=0; i<num_msgs; ++i) {
4181                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4182                 msgs[i] = atol(msgtok);
4183         }
4184
4185         /*
4186          * Do the copy
4187          */
4188         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4189         if (err != 0) {
4190                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4191                         err, targ, err);
4192                 free(msgs);
4193                 return;
4194         }
4195
4196         /* Now delete the message from the source room,
4197          * if this is a 'move' rather than a 'copy' operation.
4198          */
4199         if (is_copy == 0) {
4200                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4201         }
4202         free(msgs);
4203
4204         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4205 }
4206
4207
4208
4209 /*
4210  * GetMetaData()  -  Get the supplementary record for a message
4211  */
4212 void GetMetaData(struct MetaData *smibuf, long msgnum)
4213 {
4214
4215         struct cdbdata *cdbsmi;
4216         long TheIndex;
4217
4218         memset(smibuf, 0, sizeof(struct MetaData));
4219         smibuf->meta_msgnum = msgnum;
4220         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4221
4222         /* Use the negative of the message number for its supp record index */
4223         TheIndex = (0L - msgnum);
4224
4225         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4226         if (cdbsmi == NULL) {
4227                 return;         /* record not found; go with defaults */
4228         }
4229         memcpy(smibuf, cdbsmi->ptr,
4230                ((cdbsmi->len > sizeof(struct MetaData)) ?
4231                 sizeof(struct MetaData) : cdbsmi->len));
4232         cdb_free(cdbsmi);
4233         return;
4234 }
4235
4236
4237 /*
4238  * PutMetaData()  -  (re)write supplementary record for a message
4239  */
4240 void PutMetaData(struct MetaData *smibuf)
4241 {
4242         long TheIndex;
4243
4244         /* Use the negative of the message number for the metadata db index */
4245         TheIndex = (0L - smibuf->meta_msgnum);
4246
4247         cdb_store(CDB_MSGMAIN,
4248                   &TheIndex, (int)sizeof(long),
4249                   smibuf, (int)sizeof(struct MetaData));
4250
4251 }
4252
4253 /*
4254  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4255  *                 (These are just queued -- we actually process them later.)
4256  */
4257 void AdjRefCount(long msgnum, int incr)
4258 {
4259         struct arcq new_arcq;
4260
4261         begin_critical_section(S_SUPPMSGMAIN);
4262         if (arcfp == NULL) {
4263                 arcfp = fopen(file_arcq, "ab+");
4264         }
4265         end_critical_section(S_SUPPMSGMAIN);
4266
4267         /* msgnum < 0 means that we're trying to close the file */
4268         if (msgnum < 0) {
4269                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4270                 begin_critical_section(S_SUPPMSGMAIN);
4271                 if (arcfp != NULL) {
4272                         fclose(arcfp);
4273                         arcfp = NULL;
4274                 }
4275                 end_critical_section(S_SUPPMSGMAIN);
4276                 return;
4277         }
4278
4279         /*
4280          * If we can't open the queue, perform the operation synchronously.
4281          */
4282         if (arcfp == NULL) {
4283                 TDAP_AdjRefCount(msgnum, incr);
4284                 return;
4285         }
4286
4287         new_arcq.arcq_msgnum = msgnum;
4288         new_arcq.arcq_delta = incr;
4289         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4290         fflush(arcfp);
4291
4292         return;
4293 }
4294
4295
4296 /*
4297  * TDAP_ProcessAdjRefCountQueue()
4298  *
4299  * Process the queue of message count adjustments that was created by calls
4300  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4301  * for each one.  This should be an "off hours" operation.
4302  */
4303 int TDAP_ProcessAdjRefCountQueue(void)
4304 {
4305         char file_arcq_temp[PATH_MAX];
4306         int r;
4307         FILE *fp;
4308         struct arcq arcq_rec;
4309         int num_records_processed = 0;
4310
4311         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s2", file_arcq);
4312
4313         begin_critical_section(S_SUPPMSGMAIN);
4314         if (arcfp != NULL) {
4315                 fclose(arcfp);
4316                 arcfp = NULL;
4317         }
4318
4319         r = link(file_arcq, file_arcq_temp);
4320         if (r != 0) {
4321                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4322                 end_critical_section(S_SUPPMSGMAIN);
4323                 return(num_records_processed);
4324         }
4325
4326         unlink(file_arcq);
4327         end_critical_section(S_SUPPMSGMAIN);
4328
4329         fp = fopen(file_arcq_temp, "rb");
4330         if (fp == NULL) {
4331                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4332                 return(num_records_processed);
4333         }
4334
4335         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4336                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4337                 ++num_records_processed;
4338         }
4339
4340         fclose(fp);
4341         r = unlink(file_arcq_temp);
4342         if (r != 0) {
4343                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4344         }
4345
4346         return(num_records_processed);
4347 }
4348
4349
4350
4351 /*
4352  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4353  *                      This one does it "for real" because it's called by
4354  *                      the autopurger function that processes the queue
4355  *                      created by AdjRefCount().   If a message's reference
4356  *                      count becomes zero, we also delete the message from
4357  *                      disk and de-index it.
4358  */
4359 void TDAP_AdjRefCount(long msgnum, int incr)
4360 {
4361
4362         struct MetaData smi;
4363         long delnum;
4364
4365         /* This is a *tight* critical section; please keep it that way, as
4366          * it may get called while nested in other critical sections.
4367          * Complicating this any further will surely cause deadlock!
4368          */
4369         begin_critical_section(S_SUPPMSGMAIN);
4370         GetMetaData(&smi, msgnum);
4371         smi.meta_refcount += incr;
4372         PutMetaData(&smi);
4373         end_critical_section(S_SUPPMSGMAIN);
4374         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %d, is now %d\n",
4375                 msgnum, incr, smi.meta_refcount);
4376
4377         /* If the reference count is now zero, delete the message
4378          * (and its supplementary record as well).
4379          */
4380         if (smi.meta_refcount == 0) {
4381                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4382
4383                 /* Call delete hooks with NULL room to show it has gone altogether */
4384                 PerformDeleteHooks(NULL, msgnum);
4385
4386                 /* Remove from message base */
4387                 delnum = msgnum;
4388                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4389                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4390
4391                 /* Remove metadata record */
4392                 delnum = (0L - msgnum);
4393                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4394         }
4395
4396 }
4397
4398 /*
4399  * Write a generic object to this room
4400  *
4401  * Note: this could be much more efficient.  Right now we use two temporary
4402  * files, and still pull the message into memory as with all others.
4403  */
4404 void CtdlWriteObject(char *req_room,            /* Room to stuff it in */
4405                         char *content_type,     /* MIME type of this object */
4406                         char *tempfilename,     /* Where to fetch it from */
4407                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4408                         int is_binary,          /* Is encoding necessary? */
4409                         int is_unique,          /* Del others of this type? */
4410                         unsigned int flags      /* Internal save flags */
4411                         )
4412 {
4413
4414         FILE *fp;
4415         struct ctdlroom qrbuf;
4416         char roomname[ROOMNAMELEN];
4417         struct CtdlMessage *msg;
4418
4419         char *raw_message = NULL;
4420         char *encoded_message = NULL;
4421         off_t raw_length = 0;
4422
4423         if (is_mailbox != NULL) {
4424                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4425         }
4426         else {
4427                 safestrncpy(roomname, req_room, sizeof(roomname));
4428         }
4429
4430         fp = fopen(tempfilename, "rb");
4431         if (fp == NULL) {
4432                 CtdlLogPrintf(CTDL_CRIT, "Cannot open %s: %s\n",
4433                         tempfilename, strerror(errno));
4434                 return;
4435         }
4436         fseek(fp, 0L, SEEK_END);
4437         raw_length = ftell(fp);
4438         rewind(fp);
4439         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4440
4441         raw_message = malloc((size_t)raw_length + 2);
4442         fread(raw_message, (size_t)raw_length, 1, fp);
4443         fclose(fp);
4444
4445         if (is_binary) {
4446                 encoded_message = malloc((size_t)
4447                         (((raw_length * 134) / 100) + 4096 ) );
4448         }
4449         else {
4450                 encoded_message = malloc((size_t)(raw_length + 4096));
4451         }
4452
4453         sprintf(encoded_message, "Content-type: %s\n", content_type);
4454
4455         if (is_binary) {
4456                 sprintf(&encoded_message[strlen(encoded_message)],
4457                         "Content-transfer-encoding: base64\n\n"
4458                 );
4459         }
4460         else {
4461                 sprintf(&encoded_message[strlen(encoded_message)],
4462                         "Content-transfer-encoding: 7bit\n\n"
4463                 );
4464         }
4465
4466         if (is_binary) {
4467                 CtdlEncodeBase64(
4468                         &encoded_message[strlen(encoded_message)],
4469                         raw_message,
4470                         (int)raw_length,
4471                         0
4472                 );
4473         }
4474         else {
4475                 raw_message[raw_length] = 0;
4476                 memcpy(
4477                         &encoded_message[strlen(encoded_message)],
4478                         raw_message,
4479                         (int)(raw_length+1)
4480                 );
4481         }
4482
4483         free(raw_message);
4484
4485         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4486         msg = malloc(sizeof(struct CtdlMessage));
4487         memset(msg, 0, sizeof(struct CtdlMessage));
4488         msg->cm_magic = CTDLMESSAGE_MAGIC;
4489         msg->cm_anon_type = MES_NORMAL;
4490         msg->cm_format_type = 4;
4491         msg->cm_fields['A'] = strdup(CC->user.fullname);
4492         msg->cm_fields['O'] = strdup(req_room);
4493         msg->cm_fields['N'] = strdup(config.c_nodename);
4494         msg->cm_fields['H'] = strdup(config.c_humannode);
4495         msg->cm_flags = flags;
4496
4497         msg->cm_fields['M'] = encoded_message;
4498
4499         /* Create the requested room if we have to. */
4500         if (getroom(&qrbuf, roomname) != 0) {
4501                 create_room(roomname,
4502                         ( (is_mailbox != NULL) ? 5 : 3 ),
4503                         "", 0, 1, 0, VIEW_BBS);
4504         }
4505         /* If the caller specified this object as unique, delete all
4506          * other objects of this type that are currently in the room.
4507          */
4508         if (is_unique) {
4509                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4510                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4511                 );
4512         }
4513         /* Now write the data */
4514         CtdlSubmitMsg(msg, NULL, roomname, 0);
4515         CtdlFreeMessage(msg);
4516 }
4517
4518
4519
4520
4521
4522
4523 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4524         config_msgnum = msgnum;
4525 }
4526
4527
4528 char *CtdlGetSysConfig(char *sysconfname) {
4529         char hold_rm[ROOMNAMELEN];
4530         long msgnum;
4531         char *conf;
4532         struct CtdlMessage *msg;
4533         char buf[SIZ];
4534
4535         strcpy(hold_rm, CC->room.QRname);
4536         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4537                 getroom(&CC->room, hold_rm);
4538                 return NULL;
4539         }
4540
4541
4542         /* We want the last (and probably only) config in this room */
4543         begin_critical_section(S_CONFIG);
4544         config_msgnum = (-1L);
4545         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4546                 CtdlGetSysConfigBackend, NULL);
4547         msgnum = config_msgnum;
4548         end_critical_section(S_CONFIG);
4549
4550         if (msgnum < 0L) {
4551                 conf = NULL;
4552         }
4553         else {
4554                 msg = CtdlFetchMessage(msgnum, 1);
4555                 if (msg != NULL) {
4556                         conf = strdup(msg->cm_fields['M']);
4557                         CtdlFreeMessage(msg);
4558                 }
4559                 else {
4560                         conf = NULL;
4561                 }
4562         }
4563
4564         getroom(&CC->room, hold_rm);
4565
4566         if (conf != NULL) do {
4567                 extract_token(buf, conf, 0, '\n', sizeof buf);
4568                 strcpy(conf, &conf[strlen(buf)+1]);
4569         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4570
4571         return(conf);
4572 }
4573
4574 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4575         char temp[PATH_MAX];
4576         FILE *fp;
4577
4578         CtdlMakeTempFileName(temp, sizeof temp);
4579
4580         fp = fopen(temp, "w");
4581         if (fp == NULL) return;
4582         fprintf(fp, "%s", sysconfdata);
4583         fclose(fp);
4584
4585         /* this handy API function does all the work for us */
4586         CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
4587         unlink(temp);
4588 }
4589
4590
4591 /*
4592  * Determine whether a given Internet address belongs to the current user
4593  */
4594 int CtdlIsMe(char *addr, int addr_buf_len)
4595 {
4596         struct recptypes *recp;
4597         int i;
4598
4599         recp = validate_recipients(addr, NULL, 0);
4600         if (recp == NULL) return(0);
4601
4602         if (recp->num_local == 0) {
4603                 free_recipients(recp);
4604                 return(0);
4605         }
4606
4607         for (i=0; i<recp->num_local; ++i) {
4608                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4609                 if (!strcasecmp(addr, CC->user.fullname)) {
4610                         free_recipients(recp);
4611                         return(1);
4612                 }
4613         }
4614
4615         free_recipients(recp);
4616         return(0);
4617 }
4618
4619
4620 /*
4621  * Citadel protocol command to do the same
4622  */
4623 void cmd_isme(char *argbuf) {
4624         char addr[256];
4625
4626         if (CtdlAccessCheck(ac_logged_in)) return;
4627         extract_token(addr, argbuf, 0, '|', sizeof addr);
4628
4629         if (CtdlIsMe(addr, sizeof addr)) {
4630                 cprintf("%d %s\n", CIT_OK, addr);
4631         }
4632         else {
4633                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4634         }
4635
4636 }