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,
  93         "list",
  94         "text",
  95         "node",
  96         "room",
  97         "path",
  98         NULL,
  99         "rcpt",
 100         "spec",
 101         "time",
 102         "subj",
 103         NULL,
 104         "wefw",
 105         NULL,
 106         "cccc",
 107         NULL
 108 };
 109
 110 /*
 111  * This function is self explanatory.
 112  * (What can I say, I'm in a weird mood today...)
 113  */
 114 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
 115 {
 116         int i;
 117
 118         for (i = 0; i < strlen(name); ++i) {
 119                 if (name[i] == '@') {
 120                         while (isspace(name[i - 1]) && i > 0) {
 121                                 strcpy(&name[i - 1], &name[i]);
 122                                 --i;
 123                         }
 124                         while (isspace(name[i + 1])) {
 125                                 strcpy(&name[i + 1], &name[i + 2]);
 126                         }
 127                 }
 128         }
 129 }
 130
 131
 132 /*
 133  * Aliasing for network mail.
 134  * (Error messages have been commented out, because this is a server.)
 135  */
 136 int alias(char *name)
 137 {                               /* process alias and routing info for mail */
 138         FILE *fp;
 139         int a, i;
 140         char aaa[SIZ], bbb[SIZ];
 141         char *ignetcfg = NULL;
 142         char *ignetmap = NULL;
 143         int at = 0;
 144         char node[64];
 145         char testnode[64];
 146         char buf[SIZ];
 147
 148         char original_name[256];
 149         safestrncpy(original_name, name, sizeof original_name);
 150
 151         striplt(name);
 152         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 153         stripallbut(name, '<', '>');
 154
 155         fp = fopen(file_mail_aliases, "r");
 156         if (fp == NULL) {
 157                 fp = fopen("/dev/null", "r");
 158         }
 159         if (fp == NULL) {
 160                 return (MES_ERROR);
 161         }
 162         strcpy(aaa, "");
 163         strcpy(bbb, "");
 164         while (fgets(aaa, sizeof aaa, fp) != NULL) {
 165                 while (isspace(name[0]))
 166                         strcpy(name, &name[1]);
 167                 aaa[strlen(aaa) - 1] = 0;
 168                 strcpy(bbb, "");
 169                 for (a = 0; a < strlen(aaa); ++a) {
 170                         if (aaa[a] == ',') {
 171                                 strcpy(bbb, &aaa[a + 1]);
 172                                 aaa[a] = 0;
 173                         }
 174                 }
 175                 if (!strcasecmp(name, aaa))
 176                         strcpy(name, bbb);
 177         }
 178         fclose(fp);
 179
 180         /* Hit the Global Address Book */
 181         if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
 182                 strcpy(name, aaa);
 183         }
 184
 185         if (strcasecmp(original_name, name)) {
 186                 CtdlLogPrintf(CTDL_INFO, "%s is being forwarded to %s\n", original_name, name);
 187         }
 188
 189         /* Change "user @ xxx" to "user" if xxx is an alias for this host */
 190         for (a=0; a<strlen(name); ++a) {
 191                 if (name[a] == '@') {
 192                         if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
 193                                 name[a] = 0;
 194                                 CtdlLogPrintf(CTDL_INFO, "Changed to <%s>\n", name);
 195                         }
 196                 }
 197         }
 198
 199         /* determine local or remote type, see citadel.h */
 200         at = haschar(name, '@');
 201         if (at == 0) return(MES_LOCAL);         /* no @'s - local address */
 202         if (at > 1) return(MES_ERROR);          /* >1 @'s - invalid address */
 203         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 204
 205         /* figure out the delivery mode */
 206         extract_token(node, name, 1, '@', sizeof node);
 207
 208         /* If there are one or more dots in the nodename, we assume that it
 209          * is an FQDN and will attempt SMTP delivery to the Internet.
 210          */
 211         if (haschar(node, '.') > 0) {
 212                 return(MES_INTERNET);
 213         }
 214
 215         /* Otherwise we look in the IGnet maps for a valid Citadel node.
 216          * Try directly-connected nodes first...
 217          */
 218         ignetcfg = CtdlGetSysConfig(IGNETCFG);
 219         for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
 220                 extract_token(buf, ignetcfg, i, '\n', sizeof buf);
 221                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 222                 if (!strcasecmp(node, testnode)) {
 223                         free(ignetcfg);
 224                         return(MES_IGNET);
 225                 }
 226         }
 227         free(ignetcfg);
 228
 229         /*
 230          * Then try nodes that are two or more hops away.
 231          */
 232         ignetmap = CtdlGetSysConfig(IGNETMAP);
 233         for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
 234                 extract_token(buf, ignetmap, i, '\n', sizeof buf);
 235                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 236                 if (!strcasecmp(node, testnode)) {
 237                         free(ignetmap);
 238                         return(MES_IGNET);
 239                 }
 240         }
 241         free(ignetmap);
 242
 243         /* If we get to this point it's an invalid node name */
 244         return (MES_ERROR);
 245 }
 246
 247
 248 /*
 249  * Back end for the MSGS command: output message number only.
 250  */
 251 void simple_listing(long msgnum, void *userdata)
 252 {
 253         cprintf("%ld\n", msgnum);
 254 }
 255
 256
 257
 258 /*
 259  * Back end for the MSGS command: output header summary.
 260  */
 261 void headers_listing(long msgnum, void *userdata)
 262 {
 263         struct CtdlMessage *msg;
 264
 265         msg = CtdlFetchMessage(msgnum, 0);
 266         if (msg == NULL) {
 267                 cprintf("%ld|0|||||\n", msgnum);
 268                 return;
 269         }
 270
 271         cprintf("%ld|%s|%s|%s|%s|%s|\n",
 272                 msgnum,
 273                 (msg->cm_fields['T'] ? msg->cm_fields['T'] : "0"),
 274                 (msg->cm_fields['A'] ? msg->cm_fields['A'] : ""),
 275                 (msg->cm_fields['N'] ? msg->cm_fields['N'] : ""),
 276                 (msg->cm_fields['F'] ? msg->cm_fields['F'] : ""),
 277                 (msg->cm_fields['U'] ? msg->cm_fields['U'] : "")
 278         );
 279         CtdlFreeMessage(msg);
 280 }
 281
 282
 283
 284 /* Determine if a given message matches the fields in a message template.
 285  * Return 0 for a successful match.
 286  */
 287 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
 288         int i;
 289
 290         /* If there aren't any fields in the template, all messages will
 291          * match.
 292          */
 293         if (template == NULL) return(0);
 294
 295         /* Null messages are bogus. */
 296         if (msg == NULL) return(1);
 297
 298         for (i='A'; i<='Z'; ++i) {
 299                 if (template->cm_fields[i] != NULL) {
 300                         if (msg->cm_fields[i] == NULL) {
 301                                 return 1;
 302                         }
 303                         if (strcasecmp(msg->cm_fields[i],
 304                                 template->cm_fields[i])) return 1;
 305                 }
 306         }
 307
 308         /* All compares succeeded: we have a match! */
 309         return 0;
 310 }
 311
 312
 313
 314 /*
 315  * Retrieve the "seen" message list for the current room.
 316  */
 317 void CtdlGetSeen(char *buf, int which_set) {
 318         struct visit vbuf;
 319
 320         /* Learn about the user and room in question */
 321         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 322
 323         if (which_set == ctdlsetseen_seen)
 324                 safestrncpy(buf, vbuf.v_seen, SIZ);
 325         if (which_set == ctdlsetseen_answered)
 326                 safestrncpy(buf, vbuf.v_answered, SIZ);
 327 }
 328
 329
 330
 331 /*
 332  * Manipulate the "seen msgs" string (or other message set strings)
 333  */
 334 void CtdlSetSeen(long *target_msgnums, int num_target_msgnums,
 335                 int target_setting, int which_set,
 336                 struct ctdluser *which_user, struct ctdlroom *which_room) {
 337         struct cdbdata *cdbfr;
 338         int i, j, k;
 339         int is_seen = 0;
 340         int was_seen = 0;
 341         long lo = (-1L);
 342         long hi = (-1L);
 343         long t = (-1L);
 344         int trimming = 0;
 345         struct visit vbuf;
 346         long *msglist;
 347         int num_msgs = 0;
 348         char vset[SIZ];
 349         char *is_set;   /* actually an array of booleans */
 350         int num_sets;
 351         int s;
 352         char setstr[SIZ], lostr[SIZ], histr[SIZ];
 353         size_t tmp;
 354
 355         /* Don't bother doing *anything* if we were passed a list of zero messages */
 356         if (num_target_msgnums < 1) {
 357                 return;
 358         }
 359
 360         /* If no room was specified, we go with the current room. */
 361         if (!which_room) {
 362                 which_room = &CC->room;
 363         }
 364
 365         /* If no user was specified, we go with the current user. */
 366         if (!which_user) {
 367                 which_user = &CC->user;
 368         }
 369
 370         CtdlLogPrintf(CTDL_DEBUG, "\e[31mCtdlSetSeen(%d msgs starting with %ld, %s, %d) in <%s>\e[0m\n",
 371                 num_target_msgnums, target_msgnums[0],
 372                 (target_setting ? "SET" : "CLEAR"),
 373                 which_set,
 374                 which_room->QRname);
 375
 376         /* Learn about the user and room in question */
 377         CtdlGetRelationship(&vbuf, which_user, which_room);
 378
 379         /* Load the message list */
 380         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 381         if (cdbfr != NULL) {
 382                 msglist = (long *) cdbfr->ptr;
 383                 cdbfr->ptr = NULL;      /* CtdlSetSeen() now owns this memory */
 384                 num_msgs = cdbfr->len / sizeof(long);
 385                 cdb_free(cdbfr);
 386         } else {
 387                 return; /* No messages at all?  No further action. */
 388         }
 389
 390         is_set = malloc(num_msgs * sizeof(char));
 391         memset(is_set, 0, (num_msgs * sizeof(char)) );
 392
 393         /* Decide which message set we're manipulating */
 394         switch(which_set) {
 395                 case ctdlsetseen_seen:
 396                         safestrncpy(vset, vbuf.v_seen, sizeof vset);
 397                         break;
 398                 case ctdlsetseen_answered:
 399                         safestrncpy(vset, vbuf.v_answered, sizeof vset);
 400                         break;
 401         }
 402
 403         CtdlLogPrintf(CTDL_DEBUG, "\e[31mbefore optimize: %s\e[0m\n", vset);
 404
 405         /* Translate the existing sequence set into an array of booleans */
 406         num_sets = num_tokens(vset, ',');
 407         for (s=0; s<num_sets; ++s) {
 408                 extract_token(setstr, vset, s, ',', sizeof setstr);
 409
 410                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 411                 if (num_tokens(setstr, ':') >= 2) {
 412                         extract_token(histr, setstr, 1, ':', sizeof histr);
 413                 }
 414                 else {
 415                         strcpy(histr, lostr);
 416                 }
 417                 lo = atol(lostr);
 418                 if (!strcmp(histr, "*")) {
 419                         hi = LONG_MAX;
 420                 }
 421                 else {
 422                         hi = atol(histr);
 423                 }
 424
 425                 for (i = 0; i < num_msgs; ++i) {
 426                         if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
 427                                 is_set[i] = 1;
 428                         }
 429                 }
 430         }
 431
 432         CtdlLogPrintf(CTDL_DEBUG, "\e[31m after optimize: %s\e[0m\n", vset);
 433
 434         /* Now translate the array of booleans back into a sequence set */
 435         strcpy(vset, "");
 436         lo = (-1L);
 437         hi = (-1L);
 438         was_seen = ((which_set == ctdlsetseen_seen) ? 1 : 0);
 439
 440         for (i=0; i<num_msgs; ++i) {
 441
 442                 is_seen = is_set[i];    /* Default to existing setting */
 443
 444                 for (k=0; k<num_target_msgnums; ++k) {
 445                         if (msglist[i] == target_msgnums[k]) {
 446                                 is_seen = target_setting;
 447                         }
 448                 }
 449
 450                 if (is_seen) {
 451                         if (lo < 0L) lo = msglist[i];
 452                         hi = msglist[i];
 453                 }
 454
 455                 if (  ((is_seen == 0) && (was_seen == 1))
 456                    || ((is_seen == 1) && (i == num_msgs-1)) ) {
 457
 458                         /* begin trim-o-matic code */
 459                         j=9;
 460                         trimming = 0;
 461                         while ( (strlen(vset) + 20) > sizeof vset) {
 462                                 remove_token(vset, 0, ',');
 463                                 trimming = 1;
 464                                 if (j--) break; /* loop no more than 9 times */
 465                         }
 466                         if ( (trimming) && (which_set == ctdlsetseen_seen) ) {
 467                                 t = atol(vset);
 468                                 if (t<2) t=2;
 469                                 --t;
 470                                 snprintf(lostr, sizeof lostr,
 471                                         "1:%ld,%s", t, vset);
 472                                 safestrncpy(vset, lostr, sizeof vset);
 473                         }
 474                         if (trimming) {
 475                                 CtdlLogPrintf(CTDL_DEBUG, "\e32m ** TRIMMING ** \e[0m\n");
 476                         }
 477                         /* end trim-o-matic code */
 478
 479                         tmp = strlen(vset);
 480                         if (tmp > 0) {
 481                                 strcat(vset, ",");
 482                                 ++tmp;
 483                         }
 484                         if ((lo == -1) && (hi == -1)) {
 485                                 /* bogus pair, do nothing */
 486                         }
 487                         else if (lo == hi) {
 488                                 snprintf(&vset[tmp], (sizeof vset) - tmp, "%ld", lo);
 489                         }
 490                         else {
 491                                 snprintf(&vset[tmp], (sizeof vset) - tmp, "%ld:%ld", lo, hi);
 492                         }
 493                         lo = (-1L);
 494                         hi = (-1L);
 495                 }
 496                 was_seen = is_seen;
 497         }
 498
 499         /* Decide which message set we're manipulating */
 500         switch (which_set) {
 501                 case ctdlsetseen_seen:
 502                         safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
 503                         break;
 504                 case ctdlsetseen_answered:
 505                         safestrncpy(vbuf.v_answered, vset, sizeof vbuf.v_answered);
 506                         break;
 507         }
 508         free(is_set);
 509
 510         CtdlLogPrintf(CTDL_DEBUG, "\e[31m   after update: %s\e[0m\n", vset);
 511         free(msglist);
 512         CtdlSetRelationship(&vbuf, which_user, which_room);
 513 }
 514
 515
 516 /*
 517  * API function to perform an operation for each qualifying message in the
 518  * current room.  (Returns the number of messages processed.)
 519  */
 520 int CtdlForEachMessage(int mode, long ref, char *search_string,
 521                         char *content_type,
 522                         struct CtdlMessage *compare,
 523                         void (*CallBack) (long, void *),
 524                         void *userdata)
 525 {
 526
 527         int a, i, j;
 528         struct visit vbuf;
 529         struct cdbdata *cdbfr;
 530         long *msglist = NULL;
 531         int num_msgs = 0;
 532         int num_processed = 0;
 533         long thismsg;
 534         struct MetaData smi;
 535         struct CtdlMessage *msg = NULL;
 536         int is_seen = 0;
 537         long lastold = 0L;
 538         int printed_lastold = 0;
 539         int num_search_msgs = 0;
 540         long *search_msgs = NULL;
 541         regex_t re;
 542         int need_to_free_re = 0;
 543         regmatch_t pm;
 544
 545         if (content_type) if (!IsEmptyStr(content_type)) {
 546                 regcomp(&re, content_type, 0);
 547                 need_to_free_re = 1;
 548         }
 549
 550         /* Learn about the user and room in question */
 551         getuser(&CC->user, CC->curr_user);
 552         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 553
 554         /* Load the message list */
 555         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 556         if (cdbfr != NULL) {
 557                 msglist = (long *) cdbfr->ptr;
 558                 num_msgs = cdbfr->len / sizeof(long);
 559         } else {
 560                 if (need_to_free_re) regfree(&re);
 561                 return 0;       /* No messages at all?  No further action. */
 562         }
 563
 564
 565         /*
 566          * Now begin the traversal.
 567          */
 568         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
 569
 570                 /* If the caller is looking for a specific MIME type, filter
 571                  * out all messages which are not of the type requested.
 572                  */
 573                 if (content_type != NULL) if (!IsEmptyStr(content_type)) {
 574
 575                         /* This call to GetMetaData() sits inside this loop
 576                          * so that we only do the extra database read per msg
 577                          * if we need to.  Doing the extra read all the time
 578                          * really kills the server.  If we ever need to use
 579                          * metadata for another search criterion, we need to
 580                          * move the read somewhere else -- but still be smart
 581                          * enough to only do the read if the caller has
 582                          * specified something that will need it.
 583                          */
 584                         GetMetaData(&smi, msglist[a]);
 585
 586                         /* if (strcasecmp(smi.meta_content_type, content_type)) { old non-regex way */
 587                         if (regexec(&re, smi.meta_content_type, 1, &pm, 0) != 0) {
 588                                 msglist[a] = 0L;
 589                         }
 590                 }
 591         }
 592
 593         num_msgs = sort_msglist(msglist, num_msgs);
 594
 595         /* If a template was supplied, filter out the messages which
 596          * don't match.  (This could induce some delays!)
 597          */
 598         if (num_msgs > 0) {
 599                 if (compare != NULL) {
 600                         for (a = 0; a < num_msgs; ++a) {
 601                                 msg = CtdlFetchMessage(msglist[a], 1);
 602                                 if (msg != NULL) {
 603                                         if (CtdlMsgCmp(msg, compare)) {
 604                                                 msglist[a] = 0L;
 605                                         }
 606                                         CtdlFreeMessage(msg);
 607                                 }
 608                         }
 609                 }
 610         }
 611
 612         /* If a search string was specified, get a message list from
 613          * the full text index and remove messages which aren't on both
 614          * lists.
 615          *
 616          * How this works:
 617          * Since the lists are sorted and strictly ascending, and the
 618          * output list is guaranteed to be shorter than or equal to the
 619          * input list, we overwrite the bottom of the input list.  This
 620          * eliminates the need to memmove big chunks of the list over and
 621          * over again.
 622          */
 623         if ( (num_msgs > 0) && (mode == MSGS_SEARCH) && (search_string) ) {
 624
 625                 /* Call search module via hook mechanism.
 626                  * NULL means use any search function available.
 627                  * otherwise replace with a char * to name of search routine
 628                  */
 629                 CtdlModuleDoSearch(&num_search_msgs, &search_msgs, search_string, "fulltext");
 630
 631                 if (num_search_msgs > 0) {
 632
 633                         int orig_num_msgs;
 634
 635                         orig_num_msgs = num_msgs;
 636                         num_msgs = 0;
 637                         for (i=0; i<orig_num_msgs; ++i) {
 638                                 for (j=0; j<num_search_msgs; ++j) {
 639                                         if (msglist[i] == search_msgs[j]) {
 640                                                 msglist[num_msgs++] = msglist[i];
 641                                         }
 642                                 }
 643                         }
 644                 }
 645                 else {
 646                         num_msgs = 0;   /* No messages qualify */
 647                 }
 648                 if (search_msgs != NULL) free(search_msgs);
 649
 650                 /* Now that we've purged messages which don't contain the search
 651                  * string, treat a MSGS_SEARCH just like a MSGS_ALL from this
 652                  * point on.
 653                  */
 654                 mode = MSGS_ALL;
 655         }
 656
 657         /*
 658          * Now iterate through the message list, according to the
 659          * criteria supplied by the caller.
 660          */
 661         if (num_msgs > 0)
 662                 for (a = 0; a < num_msgs; ++a) {
 663                         thismsg = msglist[a];
 664                         if (mode == MSGS_ALL) {
 665                                 is_seen = 0;
 666                         }
 667                         else {
 668                                 is_seen = is_msg_in_sequence_set(
 669                                                         vbuf.v_seen, thismsg);
 670                                 if (is_seen) lastold = thismsg;
 671                         }
 672                         if ((thismsg > 0L)
 673                             && (
 674
 675                                        (mode == MSGS_ALL)
 676                                        || ((mode == MSGS_OLD) && (is_seen))
 677                                        || ((mode == MSGS_NEW) && (!is_seen))
 678                                        || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
 679                                    || ((mode == MSGS_FIRST) && (a < ref))
 680                                 || ((mode == MSGS_GT) && (thismsg > ref))
 681                                 || ((mode == MSGS_EQ) && (thismsg == ref))
 682                             )
 683                             ) {
 684                                 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
 685                                         if (CallBack)
 686                                                 CallBack(lastold, userdata);
 687                                         printed_lastold = 1;
 688                                         ++num_processed;
 689                                 }
 690                                 if (CallBack) CallBack(thismsg, userdata);
 691                                 ++num_processed;
 692                         }
 693                 }
 694         cdb_free(cdbfr);        /* Clean up */
 695         if (need_to_free_re) regfree(&re);
 696         return num_processed;
 697 }
 698
 699
 700
 701 /*
 702  * cmd_msgs()  -  get list of message #'s in this room
 703  *              implements the MSGS server command using CtdlForEachMessage()
 704  */
 705 void cmd_msgs(char *cmdbuf)
 706 {
 707         int mode = 0;
 708         char which[16];
 709         char buf[256];
 710         char tfield[256];
 711         char tvalue[256];
 712         int cm_ref = 0;
 713         int i;
 714         int with_template = 0;
 715         struct CtdlMessage *template = NULL;
 716         int with_headers = 0;
 717         char search_string[1024];
 718
 719         extract_token(which, cmdbuf, 0, '|', sizeof which);
 720         cm_ref = extract_int(cmdbuf, 1);
 721         extract_token(search_string, cmdbuf, 1, '|', sizeof search_string);
 722         with_template = extract_int(cmdbuf, 2);
 723         with_headers = extract_int(cmdbuf, 3);
 724
 725         strcat(which, "   ");
 726         if (!strncasecmp(which, "OLD", 3))
 727                 mode = MSGS_OLD;
 728         else if (!strncasecmp(which, "NEW", 3))
 729                 mode = MSGS_NEW;
 730         else if (!strncasecmp(which, "FIRST", 5))
 731                 mode = MSGS_FIRST;
 732         else if (!strncasecmp(which, "LAST", 4))
 733                 mode = MSGS_LAST;
 734         else if (!strncasecmp(which, "GT", 2))
 735                 mode = MSGS_GT;
 736         else if (!strncasecmp(which, "SEARCH", 6))
 737                 mode = MSGS_SEARCH;
 738         else
 739                 mode = MSGS_ALL;
 740
 741         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
 742                 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
 743                 return;
 744         }
 745
 746         if ( (mode == MSGS_SEARCH) && (!config.c_enable_fulltext) ) {
 747                 cprintf("%d Full text index is not enabled on this server.\n",
 748                         ERROR + CMD_NOT_SUPPORTED);
 749                 return;
 750         }
 751
 752         if (with_template) {
 753                 unbuffer_output();
 754                 cprintf("%d Send template then receive message list\n",
 755                         START_CHAT_MODE);
 756                 template = (struct CtdlMessage *)
 757                         malloc(sizeof(struct CtdlMessage));
 758                 memset(template, 0, sizeof(struct CtdlMessage));
 759                 template->cm_magic = CTDLMESSAGE_MAGIC;
 760                 template->cm_anon_type = MES_NORMAL;
 761
 762                 while(client_getln(buf, sizeof buf) >= 0 && strcmp(buf,"000")) {
 763                         extract_token(tfield, buf, 0, '|', sizeof tfield);
 764                         extract_token(tvalue, buf, 1, '|', sizeof tvalue);
 765                         for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
 766                                 if (!strcasecmp(tfield, msgkeys[i])) {
 767                                         template->cm_fields[i] =
 768                                                 strdup(tvalue);
 769                                 }
 770                         }
 771                 }
 772                 buffer_output();
 773         }
 774         else {
 775                 cprintf("%d  \n", LISTING_FOLLOWS);
 776         }
 777
 778         CtdlForEachMessage(mode,
 779                         ( (mode == MSGS_SEARCH) ? 0 : cm_ref ),
 780                         ( (mode == MSGS_SEARCH) ? search_string : NULL ),
 781                         NULL,
 782                         template,
 783                         (with_headers ? headers_listing : simple_listing),
 784                         NULL
 785         );
 786         if (template != NULL) CtdlFreeMessage(template);
 787         cprintf("000\n");
 788 }
 789
 790
 791
 792
 793 /*
 794  * help_subst()  -  support routine for help file viewer
 795  */
 796 void help_subst(char *strbuf, char *source, char *dest)
 797 {
 798         char workbuf[SIZ];
 799         int p;
 800
 801         while (p = pattern2(strbuf, source), (p >= 0)) {
 802                 strcpy(workbuf, &strbuf[p + strlen(source)]);
 803                 strcpy(&strbuf[p], dest);
 804                 strcat(strbuf, workbuf);
 805         }
 806 }
 807
 808
 809 void do_help_subst(char *buffer)
 810 {
 811         char buf2[16];
 812
 813         help_subst(buffer, "^nodename", config.c_nodename);
 814         help_subst(buffer, "^humannode", config.c_humannode);
 815         help_subst(buffer, "^fqdn", config.c_fqdn);
 816         help_subst(buffer, "^username", CC->user.fullname);
 817         snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
 818         help_subst(buffer, "^usernum", buf2);
 819         help_subst(buffer, "^sysadm", config.c_sysadm);
 820         help_subst(buffer, "^variantname", CITADEL);
 821         snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
 822         help_subst(buffer, "^maxsessions", buf2);
 823         help_subst(buffer, "^bbsdir", ctdl_message_dir);
 824 }
 825
 826
 827
 828 /*
 829  * memfmout()  -  Citadel text formatter and paginator.
 830  *           Although the original purpose of this routine was to format
 831  *           text to the reader's screen width, all we're really using it
 832  *           for here is to format text out to 80 columns before sending it
 833  *           to the client.  The client software may reformat it again.
 834  */
 835 void memfmout(
 836         char *mptr,             /* where are we going to get our text from? */
 837         char subst,             /* nonzero if we should do substitutions */
 838         char *nl)               /* string to terminate lines with */
 839 {
 840         int a, b, c;
 841         int real = 0;
 842         int old = 0;
 843         cit_uint8_t ch;
 844         char aaa[140];
 845         char buffer[SIZ];
 846         static int width = 80;
 847
 848         strcpy(aaa, "");
 849         old = 255;
 850         strcpy(buffer, "");
 851         c = 1;                  /* c is the current pos */
 852
 853         do {
 854                 if (subst) {
 855                         while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
 856                                 ch = *mptr++;
 857                                 buffer[strlen(buffer) + 1] = 0;
 858                                 buffer[strlen(buffer)] = ch;
 859                         }
 860
 861                         if (buffer[0] == '^')
 862                                 do_help_subst(buffer);
 863
 864                         buffer[strlen(buffer) + 1] = 0;
 865                         a = buffer[0];
 866                         strcpy(buffer, &buffer[1]);
 867                 } else {
 868                         ch = *mptr++;
 869                 }
 870
 871                 old = real;
 872                 real = ch;
 873
 874                 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10)) {
 875                         ch = 32;
 876                 }
 877                 if (((old == 13) || (old == 10)) && (isspace(real))) {
 878                         cprintf("%s", nl);
 879                         c = 1;
 880                 }
 881                 if (ch > 32) {
 882                         if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
 883                                 cprintf("%s%s", nl, aaa);
 884                                 c = strlen(aaa);
 885                                 aaa[0] = 0;
 886                         }
 887                         b = strlen(aaa);
 888                         aaa[b] = ch;
 889                         aaa[b + 1] = 0;
 890                 }
 891                 if (ch == 32) {
 892                         if ((strlen(aaa) + c) > (width - 5)) {
 893                                 cprintf("%s", nl);
 894                                 c = 1;
 895                         }
 896                         cprintf("%s ", aaa);
 897                         ++c;
 898                         c = c + strlen(aaa);
 899                         strcpy(aaa, "");
 900                 }
 901                 if ((ch == 13) || (ch == 10)) {
 902                         cprintf("%s%s", aaa, nl);
 903                         c = 1;
 904                         strcpy(aaa, "");
 905                 }
 906
 907         } while (ch > 0);
 908
 909         cprintf("%s%s", aaa, nl);
 910 }
 911
 912
 913
 914 /*
 915  * Callback function for mime parser that simply lists the part
 916  */
 917 void list_this_part(char *name, char *filename, char *partnum, char *disp,
 918                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 919                     void *cbuserdata)
 920 {
 921         struct ma_info *ma;
 922
 923         ma = (struct ma_info *)cbuserdata;
 924         if (ma->is_ma == 0) {
 925                 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
 926                         name, filename, partnum, disp, cbtype, (long)length);
 927         }
 928 }
 929
 930 /*
 931  * Callback function for multipart prefix
 932  */
 933 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
 934                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 935                     void *cbuserdata)
 936 {
 937         struct ma_info *ma;
 938
 939         ma = (struct ma_info *)cbuserdata;
 940         if (!strcasecmp(cbtype, "multipart/alternative")) {
 941                 ++ma->is_ma;
 942         }
 943
 944         if (ma->is_ma == 0) {
 945                 cprintf("pref=%s|%s\n", partnum, cbtype);
 946         }
 947 }
 948
 949 /*
 950  * Callback function for multipart sufffix
 951  */
 952 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
 953                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 954                     void *cbuserdata)
 955 {
 956         struct ma_info *ma;
 957
 958         ma = (struct ma_info *)cbuserdata;
 959         if (ma->is_ma == 0) {
 960                 cprintf("suff=%s|%s\n", partnum, cbtype);
 961         }
 962         if (!strcasecmp(cbtype, "multipart/alternative")) {
 963                 --ma->is_ma;
 964         }
 965 }
 966
 967
 968 /*
 969  * Callback function for mime parser that opens a section for downloading
 970  */
 971 void mime_download(char *name, char *filename, char *partnum, char *disp,
 972                    void *content, char *cbtype, char *cbcharset, size_t length,
 973                    char *encoding, void *cbuserdata)
 974 {
 975
 976         /* Silently go away if there's already a download open... */
 977         if (CC->download_fp != NULL)
 978                 return;
 979
 980         /* ...or if this is not the desired section */
 981         if (strcasecmp(CC->download_desired_section, partnum))
 982                 return;
 983
 984         CC->download_fp = tmpfile();
 985         if (CC->download_fp == NULL)
 986                 return;
 987
 988         fwrite(content, length, 1, CC->download_fp);
 989         fflush(CC->download_fp);
 990         rewind(CC->download_fp);
 991
 992         OpenCmdResult(filename, cbtype);
 993 }
 994
 995
 996
 997 /*
 998  * Callback function for mime parser that outputs a section all at once
 999  */
1000 void mime_spew_section(char *name, char *filename, char *partnum, char *disp,
1001                    void *content, char *cbtype, char *cbcharset, size_t length,
1002                    char *encoding, void *cbuserdata)
1003 {
1004         int *found_it = (int *)cbuserdata;
1005
1006         /* ...or if this is not the desired section */
1007         if (strcasecmp(CC->download_desired_section, partnum))
1008                 return;
1009
1010         *found_it = 1;
1011
1012         cprintf("%d %d\n", BINARY_FOLLOWS, (int)length);
1013         client_write(content, length);
1014 }
1015
1016
1017
1018 /*
1019  * Load a message from disk into memory.
1020  * This is used by CtdlOutputMsg() and other fetch functions.
1021  *
1022  * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
1023  *       using the CtdlMessageFree() function.
1024  */
1025 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
1026 {
1027         struct cdbdata *dmsgtext;
1028         struct CtdlMessage *ret = NULL;
1029         char *mptr;
1030         char *upper_bound;
1031         cit_uint8_t ch;
1032         cit_uint8_t field_header;
1033
1034         CtdlLogPrintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
1035
1036         dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
1037         if (dmsgtext == NULL) {
1038                 return NULL;
1039         }
1040         mptr = dmsgtext->ptr;
1041         upper_bound = mptr + dmsgtext->len;
1042
1043         /* Parse the three bytes that begin EVERY message on disk.
1044          * The first is always 0xFF, the on-disk magic number.
1045          * The second is the anonymous/public type byte.
1046          * The third is the format type byte (vari, fixed, or MIME).
1047          */
1048         ch = *mptr++;
1049         if (ch != 255) {
1050                 CtdlLogPrintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
1051                 cdb_free(dmsgtext);
1052                 return NULL;
1053         }
1054         ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1055         memset(ret, 0, sizeof(struct CtdlMessage));
1056
1057         ret->cm_magic = CTDLMESSAGE_MAGIC;
1058         ret->cm_anon_type = *mptr++;    /* Anon type byte */
1059         ret->cm_format_type = *mptr++;  /* Format type byte */
1060
1061         /*
1062          * The rest is zero or more arbitrary fields.  Load them in.
1063          * We're done when we encounter either a zero-length field or
1064          * have just processed the 'M' (message text) field.
1065          */
1066         do {
1067                 if (mptr >= upper_bound) {
1068                         break;
1069                 }
1070                 field_header = *mptr++;
1071                 ret->cm_fields[field_header] = strdup(mptr);
1072
1073                 while (*mptr++ != 0);   /* advance to next field */
1074
1075         } while ((mptr < upper_bound) && (field_header != 'M'));
1076
1077         cdb_free(dmsgtext);
1078
1079         /* Always make sure there's something in the msg text field.  If
1080          * it's NULL, the message text is most likely stored separately,
1081          * so go ahead and fetch that.  Failing that, just set a dummy
1082          * body so other code doesn't barf.
1083          */
1084         if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
1085                 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
1086                 if (dmsgtext != NULL) {
1087                         ret->cm_fields['M'] = strdup(dmsgtext->ptr);
1088                         cdb_free(dmsgtext);
1089                 }
1090         }
1091         if (ret->cm_fields['M'] == NULL) {
1092                 ret->cm_fields['M'] = strdup("\r\n\r\n (no text)\r\n");
1093         }
1094
1095         /* Perform "before read" hooks (aborting if any return nonzero) */
1096         if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
1097                 CtdlFreeMessage(ret);
1098                 return NULL;
1099         }
1100
1101         return (ret);
1102 }
1103
1104
1105 /*
1106  * Returns 1 if the supplied pointer points to a valid Citadel message.
1107  * If the pointer is NULL or the magic number check fails, returns 0.
1108  */
1109 int is_valid_message(struct CtdlMessage *msg) {
1110         if (msg == NULL)
1111                 return 0;
1112         if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1113                 CtdlLogPrintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1114                 return 0;
1115         }
1116         return 1;
1117 }
1118
1119
1120 /*
1121  * 'Destructor' for struct CtdlMessage
1122  */
1123 void CtdlFreeMessage(struct CtdlMessage *msg)
1124 {
1125         int i;
1126
1127         if (is_valid_message(msg) == 0)
1128         {
1129                 if (msg != NULL) free (msg);
1130                 return;
1131         }
1132
1133         for (i = 0; i < 256; ++i)
1134                 if (msg->cm_fields[i] != NULL) {
1135                         free(msg->cm_fields[i]);
1136                 }
1137
1138         msg->cm_magic = 0;      /* just in case */
1139         free(msg);
1140 }
1141
1142
1143 /*
1144  * Pre callback function for multipart/alternative
1145  *
1146  * NOTE: this differs from the standard behavior for a reason.  Normally when
1147  *       displaying multipart/alternative you want to show the _last_ usable
1148  *       format in the message.  Here we show the _first_ one, because it's
1149  *       usually text/plain.  Since this set of functions is designed for text
1150  *       output to non-MIME-aware clients, this is the desired behavior.
1151  *
1152  */
1153 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1154                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1155                 void *cbuserdata)
1156 {
1157         struct ma_info *ma;
1158
1159         ma = (struct ma_info *)cbuserdata;
1160         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
1161         if (!strcasecmp(cbtype, "multipart/alternative")) {
1162                 ++ma->is_ma;
1163                 ma->did_print = 0;
1164         }
1165         if (!strcasecmp(cbtype, "message/rfc822")) {
1166                 ++ma->freeze;
1167         }
1168 }
1169
1170 /*
1171  * Post callback function for multipart/alternative
1172  */
1173 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1174                 void *content, char *cbtype, char *cbcharset, size_t length,
1175                 char *encoding, void *cbuserdata)
1176 {
1177         struct ma_info *ma;
1178
1179         ma = (struct ma_info *)cbuserdata;
1180         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
1181         if (!strcasecmp(cbtype, "multipart/alternative")) {
1182                 --ma->is_ma;
1183                 ma->did_print = 0;
1184         }
1185         if (!strcasecmp(cbtype, "message/rfc822")) {
1186                 --ma->freeze;
1187         }
1188 }
1189
1190 /*
1191  * Inline callback function for mime parser that wants to display text
1192  */
1193 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1194                 void *content, char *cbtype, char *cbcharset, size_t length,
1195                 char *encoding, void *cbuserdata)
1196 {
1197         char *ptr;
1198         char *wptr;
1199         size_t wlen;
1200         struct ma_info *ma;
1201
1202         ma = (struct ma_info *)cbuserdata;
1203
1204         CtdlLogPrintf(CTDL_DEBUG,
1205                 "fixed_output() part %s: %s (%s) (%ld bytes)\n",
1206                 partnum, filename, cbtype, (long)length);
1207
1208         /*
1209          * If we're in the middle of a multipart/alternative scope and
1210          * we've already printed another section, skip this one.
1211          */
1212         if ( (ma->is_ma) && (ma->did_print) ) {
1213                 CtdlLogPrintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1214                 return;
1215         }
1216         ma->did_print = 1;
1217
1218         if ( (!strcasecmp(cbtype, "text/plain"))
1219            || (IsEmptyStr(cbtype)) ) {
1220                 wptr = content;
1221                 if (length > 0) {
1222                         client_write(wptr, length);
1223                         if (wptr[length-1] != '\n') {
1224                                 cprintf("\n");
1225                         }
1226                 }
1227                 return;
1228         }
1229
1230         if (!strcasecmp(cbtype, "text/html")) {
1231                 ptr = html_to_ascii(content, length, 80, 0);
1232                 wlen = strlen(ptr);
1233                 client_write(ptr, wlen);
1234                 if (ptr[wlen-1] != '\n') {
1235                         cprintf("\n");
1236                 }
1237                 free(ptr);
1238                 return;
1239         }
1240
1241         if (ma->use_fo_hooks) {
1242                 if (PerformFixedOutputHooks(cbtype, content, length)) {
1243                 /* above function returns nonzero if it handled the part */
1244                         return;
1245                 }
1246         }
1247
1248         if (strncasecmp(cbtype, "multipart/", 10)) {
1249                 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1250                         partnum, filename, cbtype, (long)length);
1251                 return;
1252         }
1253 }
1254
1255 /*
1256  * The client is elegant and sophisticated and wants to be choosy about
1257  * MIME content types, so figure out which multipart/alternative part
1258  * we're going to send.
1259  *
1260  * We use a system of weights.  When we find a part that matches one of the
1261  * MIME types we've declared as preferential, we can store it in ma->chosen_part
1262  * and then set ma->chosen_pref to that MIME type's position in our preference
1263  * list.  If we then hit another match, we only replace the first match if
1264  * the preference value is lower.
1265  */
1266 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1267                 void *content, char *cbtype, char *cbcharset, size_t length,
1268                 char *encoding, void *cbuserdata)
1269 {
1270         char buf[1024];
1271         int i;
1272         struct ma_info *ma;
1273
1274         ma = (struct ma_info *)cbuserdata;
1275
1276         // NOTE: REMOVING THIS CONDITIONAL FIXES BUG 220
1277         //       http://bugzilla.citadel.org/show_bug.cgi?id=220
1278         // I don't know if there are any side effects!  Please TEST TEST TEST
1279         //if (ma->is_ma > 0) {
1280
1281         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1282                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1283                 if ( (!strcasecmp(buf, cbtype)) && (!ma->freeze) ) {
1284                         if (i < ma->chosen_pref) {
1285                                 CtdlLogPrintf(CTDL_DEBUG, "Setting chosen part: <%s>\n", partnum);
1286                                 safestrncpy(ma->chosen_part, partnum, sizeof ma->chosen_part);
1287                                 ma->chosen_pref = i;
1288                         }
1289                 }
1290         }
1291 }
1292
1293 /*
1294  * Now that we've chosen our preferred part, output it.
1295  */
1296 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1297                 void *content, char *cbtype, char *cbcharset, size_t length,
1298                 char *encoding, void *cbuserdata)
1299 {
1300         int i;
1301         char buf[128];
1302         int add_newline = 0;
1303         char *text_content;
1304         struct ma_info *ma;
1305
1306         ma = (struct ma_info *)cbuserdata;
1307
1308         /* This is not the MIME part you're looking for... */
1309         if (strcasecmp(partnum, ma->chosen_part)) return;
1310
1311         /* If the content-type of this part is in our preferred formats
1312          * list, we can simply output it verbatim.
1313          */
1314         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1315                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1316                 if (!strcasecmp(buf, cbtype)) {
1317                         /* Yeah!  Go!  W00t!! */
1318
1319                         text_content = (char *)content;
1320                         if (text_content[length-1] != '\n') {
1321                                 ++add_newline;
1322                         }
1323                         cprintf("Content-type: %s", cbtype);
1324                         if (!IsEmptyStr(cbcharset)) {
1325                                 cprintf("; charset=%s", cbcharset);
1326                         }
1327                         cprintf("\nContent-length: %d\n",
1328                                 (int)(length + add_newline) );
1329                         if (!IsEmptyStr(encoding)) {
1330                                 cprintf("Content-transfer-encoding: %s\n", encoding);
1331                         }
1332                         else {
1333                                 cprintf("Content-transfer-encoding: 7bit\n");
1334                         }
1335                         cprintf("X-Citadel-MSG4-Partnum: %s\n", partnum);
1336                         cprintf("\n");
1337                         client_write(content, length);
1338                         if (add_newline) cprintf("\n");
1339                         return;
1340                 }
1341         }
1342
1343         /* No translations required or possible: output as text/plain */
1344         cprintf("Content-type: text/plain\n\n");
1345         fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1346                         length, encoding, cbuserdata);
1347 }
1348
1349
1350 struct encapmsg {
1351         char desired_section[64];
1352         char *msg;
1353         size_t msglen;
1354 };
1355
1356
1357 /*
1358  * Callback function for
1359  */
1360 void extract_encapsulated_message(char *name, char *filename, char *partnum, char *disp,
1361                    void *content, char *cbtype, char *cbcharset, size_t length,
1362                    char *encoding, void *cbuserdata)
1363 {
1364         struct encapmsg *encap;
1365
1366         encap = (struct encapmsg *)cbuserdata;
1367
1368         /* Only proceed if this is the desired section... */
1369         if (!strcasecmp(encap->desired_section, partnum)) {
1370                 encap->msglen = length;
1371                 encap->msg = malloc(length + 2);
1372                 memcpy(encap->msg, content, length);
1373                 return;
1374         }
1375
1376 }
1377
1378
1379
1380
1381 /*
1382  * Get a message off disk.  (returns om_* values found in msgbase.h)
1383  *
1384  */
1385 int CtdlOutputMsg(long msg_num,         /* message number (local) to fetch */
1386                   int mode,             /* how would you like that message? */
1387                   int headers_only,     /* eschew the message body? */
1388                   int do_proto,         /* do Citadel protocol responses? */
1389                   int crlf,             /* Use CRLF newlines instead of LF? */
1390                   char *section,        /* NULL or a message/rfc822 section */
1391                   int flags             /* should the bessage be exported clean? */
1392 ) {
1393         struct CtdlMessage *TheMessage = NULL;
1394         int retcode = om_no_such_msg;
1395         struct encapmsg encap;
1396
1397         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n",
1398                 msg_num, mode,
1399                 (section ? section : "<>")
1400         );
1401
1402         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1403                 if (do_proto) cprintf("%d Not logged in.\n",
1404                         ERROR + NOT_LOGGED_IN);
1405                 return(om_not_logged_in);
1406         }
1407
1408         /* FIXME: check message id against msglist for this room */
1409
1410         /*
1411          * Fetch the message from disk.  If we're in any sort of headers
1412          * only mode, request that we don't even bother loading the body
1413          * into memory.
1414          */
1415         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1416                 TheMessage = CtdlFetchMessage(msg_num, 0);
1417         }
1418         else {
1419                 TheMessage = CtdlFetchMessage(msg_num, 1);
1420         }
1421
1422         if (TheMessage == NULL) {
1423                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1424                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1425                 return(om_no_such_msg);
1426         }
1427
1428         /* Here is the weird form of this command, to process only an
1429          * encapsulated message/rfc822 section.
1430          */
1431         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1432                 memset(&encap, 0, sizeof encap);
1433                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1434                 mime_parser(TheMessage->cm_fields['M'],
1435                         NULL,
1436                         *extract_encapsulated_message,
1437                         NULL, NULL, (void *)&encap, 0
1438                 );
1439                 CtdlFreeMessage(TheMessage);
1440                 TheMessage = NULL;
1441
1442                 if (encap.msg) {
1443                         encap.msg[encap.msglen] = 0;
1444                         TheMessage = convert_internet_message(encap.msg);
1445                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1446
1447                         /* Now we let it fall through to the bottom of this
1448                          * function, because TheMessage now contains the
1449                          * encapsulated message instead of the top-level
1450                          * message.  Isn't that neat?
1451                          */
1452
1453                 }
1454                 else {
1455                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1456                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1457                         retcode = om_no_such_msg;
1458                 }
1459
1460         }
1461
1462         /* Ok, output the message now */
1463         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf, flags);
1464         CtdlFreeMessage(TheMessage);
1465
1466         return(retcode);
1467 }
1468
1469
1470 char *qp_encode_email_addrs(char *source)
1471 {
1472         char user[256], node[256], name[256];
1473         const char headerStr[] = "=?UTF-8?Q?";
1474         char *Encoded;
1475         char *EncodedName;
1476         char *nPtr;
1477         int need_to_encode = 0;
1478         long SourceLen;
1479         long EncodedMaxLen;
1480         long nColons = 0;
1481         long *AddrPtr;
1482         long *AddrUtf8;
1483         long nAddrPtrMax = 50;
1484         long nmax;
1485         int InQuotes = 0;
1486         int i, n;
1487
1488         if (source == NULL) return source;
1489         if (IsEmptyStr(source)) return source;
1490
1491         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1492         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1493         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1494         *AddrPtr = 0;
1495         i = 0;
1496         while (!IsEmptyStr (&source[i])) {
1497                 if (nColons >= nAddrPtrMax){
1498                         long *ptr;
1499
1500                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1501                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1502                         free (AddrPtr), AddrPtr = ptr;
1503
1504                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1505                         memset(&ptr[nAddrPtrMax], 0,
1506                                sizeof (long) * nAddrPtrMax);
1507
1508                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1509                         free (AddrUtf8), AddrUtf8 = ptr;
1510                         nAddrPtrMax *= 2;
1511                 }
1512                 if (((unsigned char) source[i] < 32) ||
1513                     ((unsigned char) source[i] > 126)) {
1514                         need_to_encode = 1;
1515                         AddrUtf8[nColons] = 1;
1516                 }
1517                 if (source[i] == '"')
1518                         InQuotes = !InQuotes;
1519                 if (!InQuotes && source[i] == ',') {
1520                         AddrPtr[nColons] = i;
1521                         nColons++;
1522                 }
1523                 i++;
1524         }
1525         if (need_to_encode == 0) {
1526                 free(AddrPtr);
1527                 free(AddrUtf8);
1528                 return source;
1529         }
1530
1531         SourceLen = i;
1532         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1533         Encoded = (char*) malloc (EncodedMaxLen);
1534
1535         for (i = 0; i < nColons; i++)
1536                 source[AddrPtr[i]++] = '\0';
1537
1538         nPtr = Encoded;
1539         *nPtr = '\0';
1540         for (i = 0; i < nColons && nPtr != NULL; i++) {
1541                 nmax = EncodedMaxLen - (nPtr - Encoded);
1542                 if (AddrUtf8[i]) {
1543                         process_rfc822_addr(&source[AddrPtr[i]],
1544                                             user,
1545                                             node,
1546                                             name);
1547                         /* TODO: libIDN here ! */
1548                         if (IsEmptyStr(name)) {
1549                                 n = snprintf(nPtr, nmax,
1550                                              (i==0)?"%s@%s" : ",%s@%s",
1551                                              user, node);
1552                         }
1553                         else {
1554                                 EncodedName = rfc2047encode(name, strlen(name));
1555                                 n = snprintf(nPtr, nmax,
1556                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1557                                              EncodedName, user, node);
1558                                 free(EncodedName);
1559                         }
1560                 }
1561                 else {
1562                         n = snprintf(nPtr, nmax,
1563                                      (i==0)?"%s" : ",%s",
1564                                      &source[AddrPtr[i]]);
1565                 }
1566                 if (n > 0 )
1567                         nPtr += n;
1568                 else {
1569                         char *ptr, *nnPtr;
1570                         ptr = (char*) malloc(EncodedMaxLen * 2);
1571                         memcpy(ptr, Encoded, EncodedMaxLen);
1572                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1573                         free(Encoded), Encoded = ptr;
1574                         EncodedMaxLen *= 2;
1575                         i--; /* do it once more with properly lengthened buffer */
1576                 }
1577         }
1578         for (i = 0; i < nColons; i++)
1579                 source[--AddrPtr[i]] = ',';
1580         free(AddrUtf8);
1581         free(AddrPtr);
1582         return Encoded;
1583 }
1584
1585
1586 /*
1587  * Get a message off disk.  (returns om_* values found in msgbase.h)
1588  */
1589 int CtdlOutputPreLoadedMsg(
1590                 struct CtdlMessage *TheMessage,
1591                 int mode,               /* how would you like that message? */
1592                 int headers_only,       /* eschew the message body? */
1593                 int do_proto,           /* do Citadel protocol responses? */
1594                 int crlf,               /* Use CRLF newlines instead of LF? */
1595                 int flags               /* should the bessage be exported clean? */
1596 ) {
1597         int i, j, k;
1598         char buf[SIZ];
1599         cit_uint8_t ch, prev_ch;
1600         char allkeys[30];
1601         char display_name[256];
1602         char *mptr, *mpptr;
1603         char *nl;       /* newline string */
1604         int suppress_f = 0;
1605         int subject_found = 0;
1606         struct ma_info ma;
1607
1608         /* Buffers needed for RFC822 translation.  These are all filled
1609          * using functions that are bounds-checked, and therefore we can
1610          * make them substantially smaller than SIZ.
1611          */
1612         char suser[100];
1613         char luser[100];
1614         char fuser[100];
1615         char snode[100];
1616         char lnode[100];
1617         char mid[100];
1618         char datestamp[100];
1619
1620         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1621                 ((TheMessage == NULL) ? "NULL" : "not null"),
1622                 mode, headers_only, do_proto, crlf);
1623
1624         strcpy(mid, "unknown");
1625         nl = (crlf ? "\r\n" : "\n");
1626
1627         if (!is_valid_message(TheMessage)) {
1628                 CtdlLogPrintf(CTDL_ERR,
1629                         "ERROR: invalid preloaded message for output\n");
1630                 cit_backtrace ();
1631                 return(om_no_such_msg);
1632         }
1633
1634         /* Are we downloading a MIME component? */
1635         if (mode == MT_DOWNLOAD) {
1636                 if (TheMessage->cm_format_type != FMT_RFC822) {
1637                         if (do_proto)
1638                                 cprintf("%d This is not a MIME message.\n",
1639                                 ERROR + ILLEGAL_VALUE);
1640                 } else if (CC->download_fp != NULL) {
1641                         if (do_proto) cprintf(
1642                                 "%d You already have a download open.\n",
1643                                 ERROR + RESOURCE_BUSY);
1644                 } else {
1645                         /* Parse the message text component */
1646                         mptr = TheMessage->cm_fields['M'];
1647                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1648                         /* If there's no file open by this time, the requested
1649                          * section wasn't found, so print an error
1650                          */
1651                         if (CC->download_fp == NULL) {
1652                                 if (do_proto) cprintf(
1653                                         "%d Section %s not found.\n",
1654                                         ERROR + FILE_NOT_FOUND,
1655                                         CC->download_desired_section);
1656                         }
1657                 }
1658                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1659         }
1660
1661         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1662          * in a single server operation instead of opening a download file.
1663          */
1664         if (mode == MT_SPEW_SECTION) {
1665                 if (TheMessage->cm_format_type != FMT_RFC822) {
1666                         if (do_proto)
1667                                 cprintf("%d This is not a MIME message.\n",
1668                                 ERROR + ILLEGAL_VALUE);
1669                 } else {
1670                         /* Parse the message text component */
1671                         int found_it = 0;
1672
1673                         mptr = TheMessage->cm_fields['M'];
1674                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1675                         /* If section wasn't found, print an error
1676                          */
1677                         if (!found_it) {
1678                                 if (do_proto) cprintf(
1679                                         "%d Section %s not found.\n",
1680                                         ERROR + FILE_NOT_FOUND,
1681                                         CC->download_desired_section);
1682                         }
1683                 }
1684                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1685         }
1686
1687         /* now for the user-mode message reading loops */
1688         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1689
1690         /* Does the caller want to skip the headers? */
1691         if (headers_only == HEADERS_NONE) goto START_TEXT;
1692
1693         /* Tell the client which format type we're using. */
1694         if ( (mode == MT_CITADEL) && (do_proto) ) {
1695                 cprintf("type=%d\n", TheMessage->cm_format_type);
1696         }
1697
1698         /* nhdr=yes means that we're only displaying headers, no body */
1699         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1700            && (mode == MT_CITADEL)
1701            && (do_proto)
1702            ) {
1703                 cprintf("nhdr=yes\n");
1704         }
1705
1706         /* begin header processing loop for Citadel message format */
1707
1708         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1709
1710                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1711                 if (TheMessage->cm_fields['A']) {
1712                         strcpy(buf, TheMessage->cm_fields['A']);
1713                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1714                                 safestrncpy(display_name, "****", sizeof display_name);
1715                         }
1716                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1717                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1718                         }
1719                         else {
1720                                 safestrncpy(display_name, buf, sizeof display_name);
1721                         }
1722                         if ((is_room_aide())
1723                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1724                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1725                                 size_t tmp = strlen(display_name);
1726                                 snprintf(&display_name[tmp],
1727                                          sizeof display_name - tmp,
1728                                          " [%s]", buf);
1729                         }
1730                 }
1731
1732                 /* Don't show Internet address for users on the
1733                  * local Citadel network.
1734                  */
1735                 suppress_f = 0;
1736                 if (TheMessage->cm_fields['N'] != NULL)
1737                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1738                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1739                         suppress_f = 1;
1740                 }
1741
1742                 /* Now spew the header fields in the order we like them. */
1743                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1744                 for (i=0; i<strlen(allkeys); ++i) {
1745                         k = (int) allkeys[i];
1746                         if (k != 'M') {
1747                                 if ( (TheMessage->cm_fields[k] != NULL)
1748                                    && (msgkeys[k] != NULL) ) {
1749                                         if (k == 'A') {
1750                                                 if (do_proto) cprintf("%s=%s\n",
1751                                                         msgkeys[k],
1752                                                         display_name);
1753                                         }
1754                                         else if ((k == 'F') && (suppress_f)) {
1755                                                 /* do nothing */
1756                                         }
1757                                         /* Masquerade display name if needed */
1758                                         else {
1759                                                 if (do_proto) cprintf("%s=%s\n",
1760                                                         msgkeys[k],
1761                                                         TheMessage->cm_fields[k]
1762                                         );
1763                                         }
1764                                 }
1765                         }
1766                 }
1767
1768         }
1769
1770         /* begin header processing loop for RFC822 transfer format */
1771
1772         strcpy(suser, "");
1773         strcpy(luser, "");
1774         strcpy(fuser, "");
1775         strcpy(snode, NODENAME);
1776         strcpy(lnode, HUMANNODE);
1777         if (mode == MT_RFC822) {
1778                 for (i = 0; i < 256; ++i) {
1779                         if (TheMessage->cm_fields[i]) {
1780                                 mptr = mpptr = TheMessage->cm_fields[i];
1781
1782                                 if (i == 'A') {
1783                                         safestrncpy(luser, mptr, sizeof luser);
1784                                         safestrncpy(suser, mptr, sizeof suser);
1785                                 }
1786                                 else if (i == 'Y') {
1787                                         if ((flags & QP_EADDR) != 0)
1788                                                 mptr = qp_encode_email_addrs(mptr);
1789                                         cprintf("CC: %s%s", mptr, nl);
1790                                 }
1791                                 else if (i == 'P') {
1792                                         cprintf("Return-Path: %s%s", mptr, nl);
1793                                 }
1794                                 else if (i == 'L') {
1795                                         cprintf("List-ID: %s%s", mptr, nl);
1796                                 }
1797                                 else if (i == 'V') {
1798                                         if ((flags & QP_EADDR) != 0)
1799                                                 mptr = qp_encode_email_addrs(mptr);
1800                                         cprintf("Envelope-To: %s%s", mptr, nl);
1801                                 }
1802                                 else if (i == 'U') {
1803                                         cprintf("Subject: %s%s", mptr, nl);
1804                                         subject_found = 1;
1805                                 }
1806                                 else if (i == 'I')
1807                                         safestrncpy(mid, mptr, sizeof mid);
1808                                 else if (i == 'H')
1809                                         safestrncpy(lnode, mptr, sizeof lnode);
1810                                 else if (i == 'F')
1811                                         safestrncpy(fuser, mptr, sizeof fuser);
1812                                 /* else if (i == 'O')
1813                                         cprintf("X-Citadel-Room: %s%s",
1814                                                 mptr, nl); */
1815                                 else if (i == 'N')
1816                                         safestrncpy(snode, mptr, sizeof snode);
1817                                 else if (i == 'R')
1818                                 {
1819                                         if (haschar(mptr, '@') == 0)
1820                                         {
1821                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1822                                         }
1823                                         else
1824                                         {
1825                                                 if ((flags & QP_EADDR) != 0)
1826                                                         mptr = qp_encode_email_addrs(mptr);
1827                                                 cprintf("To: %s%s", mptr, nl);
1828                                         }
1829                                 }
1830                                 else if (i == 'T') {
1831                                         datestring(datestamp, sizeof datestamp,
1832                                                 atol(mptr), DATESTRING_RFC822);
1833                                         cprintf("Date: %s%s", datestamp, nl);
1834                                 }
1835                                 else if (i == 'W') {
1836                                         cprintf("References: ");
1837                                         k = num_tokens(mptr, '|');
1838                                         for (j=0; j<k; ++j) {
1839                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1840                                                 cprintf("<%s>", buf);
1841                                                 if (j == (k-1)) {
1842                                                         cprintf("%s", nl);
1843                                                 }
1844                                                 else {
1845                                                         cprintf(" ");
1846                                                 }
1847                                         }
1848                                 }
1849                                 if (mptr != mpptr)
1850                                         free (mptr);
1851                         }
1852                 }
1853                 if (subject_found == 0) {
1854                         cprintf("Subject: (no subject)%s", nl);
1855                 }
1856         }
1857
1858         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1859                 suser[i] = tolower(suser[i]);
1860                 if (!isalnum(suser[i])) suser[i]='_';
1861         }
1862
1863         if (mode == MT_RFC822) {
1864                 if (!strcasecmp(snode, NODENAME)) {
1865                         safestrncpy(snode, FQDN, sizeof snode);
1866                 }
1867
1868                 /* Construct a fun message id */
1869                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1870                 if (strchr(mid, '@')==NULL) {
1871                         cprintf("@%s", snode);
1872                 }
1873                 cprintf(">%s", nl);
1874
1875                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1876                         cprintf("From: \"----\" <x@x.org>%s", nl);
1877                 }
1878                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1879                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1880                 }
1881                 else if (!IsEmptyStr(fuser)) {
1882                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1883                 }
1884                 else {
1885                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1886                 }
1887
1888                 cprintf("Organization: %s%s", lnode, nl);
1889
1890                 /* Blank line signifying RFC822 end-of-headers */
1891                 if (TheMessage->cm_format_type != FMT_RFC822) {
1892                         cprintf("%s", nl);
1893                 }
1894         }
1895
1896         /* end header processing loop ... at this point, we're in the text */
1897 START_TEXT:
1898         if (headers_only == HEADERS_FAST) goto DONE;
1899         mptr = TheMessage->cm_fields['M'];
1900
1901         /* Tell the client about the MIME parts in this message */
1902         if (TheMessage->cm_format_type == FMT_RFC822) {
1903                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1904                         memset(&ma, 0, sizeof(struct ma_info));
1905                         mime_parser(mptr, NULL,
1906                                 (do_proto ? *list_this_part : NULL),
1907                                 (do_proto ? *list_this_pref : NULL),
1908                                 (do_proto ? *list_this_suff : NULL),
1909                                 (void *)&ma, 0);
1910                 }
1911                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1912                         char *start_of_text = NULL;
1913                         start_of_text = strstr(mptr, "\n\r\n");
1914                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1915                         if (start_of_text == NULL) start_of_text = mptr;
1916                         ++start_of_text;
1917                         start_of_text = strstr(start_of_text, "\n");
1918                         ++start_of_text;
1919
1920                         char outbuf[1024];
1921                         int outlen = 0;
1922                         int nllen = strlen(nl);
1923                         prev_ch = 0;
1924                         while (ch=*mptr, ch!=0) {
1925                                 if (ch==13) {
1926                                         /* do nothing */
1927                                 }
1928                                 else {
1929                                         if (
1930                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1931                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1932                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1933                                         ) {
1934                                                 if (ch == 10) {
1935                                                         sprintf(&outbuf[outlen], "%s", nl);
1936                                                         outlen += nllen;
1937                                                 }
1938                                                 else {
1939                                                         outbuf[outlen++] = ch;
1940                                                 }
1941                                         }
1942                                 }
1943                                 if (flags & ESC_DOT)
1944                                 {
1945                                         if ((prev_ch == 10) && (ch == '.') && ((*(mptr+1) == 13) || (*(mptr+1) == 10)))
1946                                         {
1947                                                 outbuf[outlen++] = '.';
1948                                         }
1949                                 }
1950                                 prev_ch = ch;
1951                                 ++mptr;
1952                                 if (outlen > 1000) {
1953                                         client_write(outbuf, outlen);
1954                                         outlen = 0;
1955                                 }
1956                         }
1957                         if (outlen > 0) {
1958                                 client_write(outbuf, outlen);
1959                                 outlen = 0;
1960                         }
1961
1962                         goto DONE;
1963                 }
1964         }
1965
1966         if (headers_only == HEADERS_ONLY) {
1967                 goto DONE;
1968         }
1969
1970         /* signify start of msg text */
1971         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1972                 if (do_proto) cprintf("text\n");
1973         }
1974
1975         /* If the format type on disk is 1 (fixed-format), then we want
1976          * everything to be output completely literally ... regardless of
1977          * what message transfer format is in use.
1978          */
1979         if (TheMessage->cm_format_type == FMT_FIXED) {
1980                 int buflen;
1981                 if (mode == MT_MIME) {
1982                         cprintf("Content-type: text/plain\n\n");
1983                 }
1984                 *buf = '\0';
1985                 buflen = 0;
1986                 while (ch = *mptr++, ch > 0) {
1987                         if (ch == 13)
1988                                 ch = 10;
1989                         if ((ch == 10) || (buflen > 250)) {
1990                                 buf[buflen] = '\0';
1991                                 cprintf("%s%s", buf, nl);
1992                                 *buf = '\0';
1993                                 buflen = 0;
1994                         } else {
1995                                 buf[buflen] = ch;
1996                                 buflen++;
1997                         }
1998                 }
1999                 buf[buflen] = '\0';
2000                 if (!IsEmptyStr(buf))
2001                         cprintf("%s%s", buf, nl);
2002         }
2003
2004         /* If the message on disk is format 0 (Citadel vari-format), we
2005          * output using the formatter at 80 columns.  This is the final output
2006          * form if the transfer format is RFC822, but if the transfer format
2007          * is Citadel proprietary, it'll still work, because the indentation
2008          * for new paragraphs is correct and the client will reformat the
2009          * message to the reader's screen width.
2010          */
2011         if (TheMessage->cm_format_type == FMT_CITADEL) {
2012                 if (mode == MT_MIME) {
2013                         cprintf("Content-type: text/x-citadel-variformat\n\n");
2014                 }
2015                 memfmout(mptr, 0, nl);
2016         }
2017
2018         /* If the message on disk is format 4 (MIME), we've gotta hand it
2019          * off to the MIME parser.  The client has already been told that
2020          * this message is format 1 (fixed format), so the callback function
2021          * we use will display those parts as-is.
2022          */
2023         if (TheMessage->cm_format_type == FMT_RFC822) {
2024                 memset(&ma, 0, sizeof(struct ma_info));
2025
2026                 if (mode == MT_MIME) {
2027                         ma.use_fo_hooks = 0;
2028                         strcpy(ma.chosen_part, "1");
2029                         ma.chosen_pref = 9999;
2030                         mime_parser(mptr, NULL,
2031                                 *choose_preferred, *fixed_output_pre,
2032                                 *fixed_output_post, (void *)&ma, 0);
2033                         mime_parser(mptr, NULL,
2034                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
2035                 }
2036                 else {
2037                         ma.use_fo_hooks = 1;
2038                         mime_parser(mptr, NULL,
2039                                 *fixed_output, *fixed_output_pre,
2040                                 *fixed_output_post, (void *)&ma, 0);
2041                 }
2042
2043         }
2044
2045 DONE:   /* now we're done */
2046         if (do_proto) cprintf("000\n");
2047         return(om_ok);
2048 }
2049
2050
2051
2052 /*
2053  * display a message (mode 0 - Citadel proprietary)
2054  */
2055 void cmd_msg0(char *cmdbuf)
2056 {
2057         long msgid;
2058         int headers_only = HEADERS_ALL;
2059
2060         msgid = extract_long(cmdbuf, 0);
2061         headers_only = extract_int(cmdbuf, 1);
2062
2063         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL, 0);
2064         return;
2065 }
2066
2067
2068 /*
2069  * display a message (mode 2 - RFC822)
2070  */
2071 void cmd_msg2(char *cmdbuf)
2072 {
2073         long msgid;
2074         int headers_only = HEADERS_ALL;
2075
2076         msgid = extract_long(cmdbuf, 0);
2077         headers_only = extract_int(cmdbuf, 1);
2078
2079         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL, 0);
2080 }
2081
2082
2083
2084 /*
2085  * display a message (mode 3 - IGnet raw format - internal programs only)
2086  */
2087 void cmd_msg3(char *cmdbuf)
2088 {
2089         long msgnum;
2090         struct CtdlMessage *msg = NULL;
2091         struct ser_ret smr;
2092
2093         if (CC->internal_pgm == 0) {
2094                 cprintf("%d This command is for internal programs only.\n",
2095                         ERROR + HIGHER_ACCESS_REQUIRED);
2096                 return;
2097         }
2098
2099         msgnum = extract_long(cmdbuf, 0);
2100         msg = CtdlFetchMessage(msgnum, 1);
2101         if (msg == NULL) {
2102                 cprintf("%d Message %ld not found.\n",
2103                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2104                 return;
2105         }
2106
2107         serialize_message(&smr, msg);
2108         CtdlFreeMessage(msg);
2109
2110         if (smr.len == 0) {
2111                 cprintf("%d Unable to serialize message\n",
2112                         ERROR + INTERNAL_ERROR);
2113                 return;
2114         }
2115
2116         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2117         client_write((char *)smr.ser, (int)smr.len);
2118         free(smr.ser);
2119 }
2120
2121
2122
2123 /*
2124  * Display a message using MIME content types
2125  */
2126 void cmd_msg4(char *cmdbuf)
2127 {
2128         long msgid;
2129         char section[64];
2130
2131         msgid = extract_long(cmdbuf, 0);
2132         extract_token(section, cmdbuf, 1, '|', sizeof section);
2133         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) , 0);
2134 }
2135
2136
2137
2138 /*
2139  * Client tells us its preferred message format(s)
2140  */
2141 void cmd_msgp(char *cmdbuf)
2142 {
2143         if (!strcasecmp(cmdbuf, "dont_decode")) {
2144                 CC->msg4_dont_decode = 1;
2145                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2146         }
2147         else {
2148                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2149                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2150         }
2151 }
2152
2153
2154 /*
2155  * Open a component of a MIME message as a download file
2156  */
2157 void cmd_opna(char *cmdbuf)
2158 {
2159         long msgid;
2160         char desired_section[128];
2161
2162         msgid = extract_long(cmdbuf, 0);
2163         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2164         safestrncpy(CC->download_desired_section, desired_section,
2165                 sizeof CC->download_desired_section);
2166         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL, 0);
2167 }
2168
2169
2170 /*
2171  * Open a component of a MIME message and transmit it all at once
2172  */
2173 void cmd_dlat(char *cmdbuf)
2174 {
2175         long msgid;
2176         char desired_section[128];
2177
2178         msgid = extract_long(cmdbuf, 0);
2179         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2180         safestrncpy(CC->download_desired_section, desired_section,
2181                 sizeof CC->download_desired_section);
2182         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL, 0);
2183 }
2184
2185
2186 /*
2187  * Save one or more message pointers into a specified room
2188  * (Returns 0 for success, nonzero for failure)
2189  * roomname may be NULL to use the current room
2190  *
2191  * Note that the 'supplied_msg' field may be set to NULL, in which case
2192  * the message will be fetched from disk, by number, if we need to perform
2193  * replication checks.  This adds an additional database read, so if the
2194  * caller already has the message in memory then it should be supplied.  (Obviously
2195  * this mode of operation only works if we're saving a single message.)
2196  */
2197 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2198                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2199 {
2200         int i, j, unique;
2201         char hold_rm[ROOMNAMELEN];
2202         struct cdbdata *cdbfr;
2203         int num_msgs;
2204         long *msglist;
2205         long highest_msg = 0L;
2206
2207         long msgid = 0;
2208         struct CtdlMessage *msg = NULL;
2209
2210         long *msgs_to_be_merged = NULL;
2211         int num_msgs_to_be_merged = 0;
2212
2213         CtdlLogPrintf(CTDL_DEBUG,
2214                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2215                 roomname, num_newmsgs, do_repl_check);
2216
2217         strcpy(hold_rm, CC->room.QRname);
2218
2219         /* Sanity checks */
2220         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2221         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2222         if (num_newmsgs > 1) supplied_msg = NULL;
2223
2224         /* Now the regular stuff */
2225         if (lgetroom(&CC->room,
2226            ((roomname != NULL) ? roomname : CC->room.QRname) )
2227            != 0) {
2228                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2229                 return(ERROR + ROOM_NOT_FOUND);
2230         }
2231
2232
2233         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2234         num_msgs_to_be_merged = 0;
2235
2236
2237         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2238         if (cdbfr == NULL) {
2239                 msglist = NULL;
2240                 num_msgs = 0;
2241         } else {
2242                 msglist = (long *) cdbfr->ptr;
2243                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2244                 num_msgs = cdbfr->len / sizeof(long);
2245                 cdb_free(cdbfr);
2246         }
2247
2248
2249         /* Create a list of msgid's which were supplied by the caller, but do
2250          * not already exist in the target room.  It is absolutely taboo to
2251          * have more than one reference to the same message in a room.
2252          */
2253         for (i=0; i<num_newmsgs; ++i) {
2254                 unique = 1;
2255                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2256                         if (msglist[j] == newmsgidlist[i]) {
2257                                 unique = 0;
2258                         }
2259                 }
2260                 if (unique) {
2261                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2262                 }
2263         }
2264
2265         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2266
2267         /*
2268          * Now merge the new messages
2269          */
2270         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2271         if (msglist == NULL) {
2272                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2273         }
2274         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2275         num_msgs += num_msgs_to_be_merged;
2276
2277         /* Sort the message list, so all the msgid's are in order */
2278         num_msgs = sort_msglist(msglist, num_msgs);
2279
2280         /* Determine the highest message number */
2281         highest_msg = msglist[num_msgs - 1];
2282
2283         /* Write it back to disk. */
2284         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2285                   msglist, (int)(num_msgs * sizeof(long)));
2286
2287         /* Free up the memory we used. */
2288         free(msglist);
2289
2290         /* Update the highest-message pointer and unlock the room. */
2291         CC->room.QRhighest = highest_msg;
2292         lputroom(&CC->room);
2293
2294         /* Perform replication checks if necessary */
2295         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2296                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2297
2298                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2299                         msgid = msgs_to_be_merged[i];
2300
2301                         if (supplied_msg != NULL) {
2302                                 msg = supplied_msg;
2303                         }
2304                         else {
2305                                 msg = CtdlFetchMessage(msgid, 0);
2306                         }
2307
2308                         if (msg != NULL) {
2309                                 ReplicationChecks(msg);
2310
2311                                 /* If the message has an Exclusive ID, index that... */
2312                                 if (msg->cm_fields['E'] != NULL) {
2313                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2314                                 }
2315
2316                                 /* Free up the memory we may have allocated */
2317                                 if (msg != supplied_msg) {
2318                                         CtdlFreeMessage(msg);
2319                                 }
2320                         }
2321
2322                 }
2323         }
2324
2325         else {
2326                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2327         }
2328
2329         /* Submit this room for processing by hooks */
2330         PerformRoomHooks(&CC->room);
2331
2332         /* Go back to the room we were in before we wandered here... */
2333         getroom(&CC->room, hold_rm);
2334
2335         /* Bump the reference count for all messages which were merged */
2336         for (i=0; i<num_msgs_to_be_merged; ++i) {
2337                 AdjRefCount(msgs_to_be_merged[i], +1);
2338         }
2339
2340         /* Free up memory... */
2341         if (msgs_to_be_merged != NULL) {
2342                 free(msgs_to_be_merged);
2343         }
2344
2345         /* Return success. */
2346         return (0);
2347 }
2348
2349
2350 /*
2351  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2352  * a single message.
2353  */
2354 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2355                         int do_repl_check, struct CtdlMessage *supplied_msg)
2356 {
2357         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2358 }
2359
2360
2361
2362
2363 /*
2364  * Message base operation to save a new message to the message store
2365  * (returns new message number)
2366  *
2367  * This is the back end for CtdlSubmitMsg() and should not be directly
2368  * called by server-side modules.
2369  *
2370  */
2371 long send_message(struct CtdlMessage *msg) {
2372         long newmsgid;
2373         long retval;
2374         char msgidbuf[256];
2375         struct ser_ret smr;
2376         int is_bigmsg = 0;
2377         char *holdM = NULL;
2378
2379         /* Get a new message number */
2380         newmsgid = get_new_message_number();
2381         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2382
2383         /* Generate an ID if we don't have one already */
2384         if (msg->cm_fields['I']==NULL) {
2385                 msg->cm_fields['I'] = strdup(msgidbuf);
2386         }
2387
2388         /* If the message is big, set its body aside for storage elsewhere */
2389         if (msg->cm_fields['M'] != NULL) {
2390                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2391                         is_bigmsg = 1;
2392                         holdM = msg->cm_fields['M'];
2393                         msg->cm_fields['M'] = NULL;
2394                 }
2395         }
2396
2397         /* Serialize our data structure for storage in the database */
2398         serialize_message(&smr, msg);
2399
2400         if (is_bigmsg) {
2401                 msg->cm_fields['M'] = holdM;
2402         }
2403
2404         if (smr.len == 0) {
2405                 cprintf("%d Unable to serialize message\n",
2406                         ERROR + INTERNAL_ERROR);
2407                 return (-1L);
2408         }
2409
2410         /* Write our little bundle of joy into the message base */
2411         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2412                       smr.ser, smr.len) < 0) {
2413                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2414                 retval = 0L;
2415         } else {
2416                 if (is_bigmsg) {
2417                         cdb_store(CDB_BIGMSGS,
2418                                 &newmsgid,
2419                                 (int)sizeof(long),
2420                                 holdM,
2421                                 (strlen(holdM) + 1)
2422                         );
2423                 }
2424                 retval = newmsgid;
2425         }
2426
2427         /* Free the memory we used for the serialized message */
2428         free(smr.ser);
2429
2430         /* Return the *local* message ID to the caller
2431          * (even if we're storing an incoming network message)
2432          */
2433         return(retval);
2434 }
2435
2436
2437
2438 /*
2439  * Serialize a struct CtdlMessage into the format used on disk and network.
2440  *
2441  * This function loads up a "struct ser_ret" (defined in server.h) which
2442  * contains the length of the serialized message and a pointer to the
2443  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2444  */
2445 void serialize_message(struct ser_ret *ret,             /* return values */
2446                         struct CtdlMessage *msg)        /* unserialized msg */
2447 {
2448         size_t wlen, fieldlen;
2449         int i;
2450         static char *forder = FORDER;
2451
2452         /*
2453          * Check for valid message format
2454          */
2455         if (is_valid_message(msg) == 0) {
2456                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2457                 ret->len = 0;
2458                 ret->ser = NULL;
2459                 return;
2460         }
2461
2462         ret->len = 3;
2463         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2464                 ret->len = ret->len +
2465                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2466
2467         ret->ser = malloc(ret->len);
2468         if (ret->ser == NULL) {
2469                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2470                         (long)ret->len, strerror(errno));
2471                 ret->len = 0;
2472                 ret->ser = NULL;
2473                 return;
2474         }
2475
2476         ret->ser[0] = 0xFF;
2477         ret->ser[1] = msg->cm_anon_type;
2478         ret->ser[2] = msg->cm_format_type;
2479         wlen = 3;
2480
2481         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2482                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2483                 ret->ser[wlen++] = (char)forder[i];
2484                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2485                 wlen = wlen + fieldlen + 1;
2486         }
2487         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2488                 (long)ret->len, (long)wlen);
2489
2490         return;
2491 }
2492
2493
2494 /*
2495  * Serialize a struct CtdlMessage into the format used on disk and network.
2496  *
2497  * This function loads up a "struct ser_ret" (defined in server.h) which
2498  * contains the length of the serialized message and a pointer to the
2499  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2500  */
2501 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2502                   long Siz)                     /* how many chars ? */
2503 {
2504         size_t wlen;
2505         int i;
2506         static char *forder = FORDER;
2507         char *buf;
2508
2509         /*
2510          * Check for valid message format
2511          */
2512         if (is_valid_message(msg) == 0) {
2513                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2514                 return;
2515         }
2516
2517         buf = (char*) malloc (Siz + 1);
2518
2519         wlen = 3;
2520
2521         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2522                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i],
2523                                    msg->cm_fields[(int)forder[i]]);
2524                         client_write (buf, strlen(buf));
2525                 }
2526
2527         return;
2528 }
2529
2530
2531
2532 /*
2533  * Check to see if any messages already exist in the current room which
2534  * carry the same Exclusive ID as this one.  If any are found, delete them.
2535  */
2536 void ReplicationChecks(struct CtdlMessage *msg) {
2537         long old_msgnum = (-1L);
2538
2539         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2540
2541         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2542                 CC->room.QRname);
2543
2544         /* No exclusive id?  Don't do anything. */
2545         if (msg == NULL) return;
2546         if (msg->cm_fields['E'] == NULL) return;
2547         if (IsEmptyStr(msg->cm_fields['E'])) return;
2548         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2549                 msg->cm_fields['E'], CC->room.QRname);*/
2550
2551         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2552         if (old_msgnum > 0L) {
2553                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2554                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2555         }
2556 }
2557
2558
2559
2560 /*
2561  * Save a message to disk and submit it into the delivery system.
2562  */
2563 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2564                    struct recptypes *recps,     /* recipients (if mail) */
2565                    char *force,                 /* force a particular room? */
2566                    int flags                    /* should the bessage be exported clean? */
2567 ) {
2568         char submit_filename[128];
2569         char generated_timestamp[32];
2570         char hold_rm[ROOMNAMELEN];
2571         char actual_rm[ROOMNAMELEN];
2572         char force_room[ROOMNAMELEN];
2573         char content_type[SIZ];                 /* We have to learn this */
2574         char recipient[SIZ];
2575         long newmsgid;
2576         char *mptr = NULL;
2577         struct ctdluser userbuf;
2578         int a, i;
2579         struct MetaData smi;
2580         FILE *network_fp = NULL;
2581         static int seqnum = 1;
2582         struct CtdlMessage *imsg = NULL;
2583         char *instr = NULL;
2584         size_t instr_alloc = 0;
2585         struct ser_ret smr;
2586         char *hold_R, *hold_D;
2587         char *collected_addresses = NULL;
2588         struct addresses_to_be_filed *aptr = NULL;
2589         char *saved_rfc822_version = NULL;
2590         int qualified_for_journaling = 0;
2591         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2592         char bounce_to[1024] = "";
2593
2594         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2595         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2596
2597         /* If this message has no timestamp, we take the liberty of
2598          * giving it one, right now.
2599          */
2600         if (msg->cm_fields['T'] == NULL) {
2601                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2602                 msg->cm_fields['T'] = strdup(generated_timestamp);
2603         }
2604
2605         /* If this message has no path, we generate one.
2606          */
2607         if (msg->cm_fields['P'] == NULL) {
2608                 if (msg->cm_fields['A'] != NULL) {
2609                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2610                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2611                                 if (isspace(msg->cm_fields['P'][a])) {
2612                                         msg->cm_fields['P'][a] = ' ';
2613                                 }
2614                         }
2615                 }
2616                 else {
2617                         msg->cm_fields['P'] = strdup("unknown");
2618                 }
2619         }
2620
2621         if (force == NULL) {
2622                 strcpy(force_room, "");
2623         }
2624         else {
2625                 strcpy(force_room, force);
2626         }
2627
2628         /* Learn about what's inside, because it's what's inside that counts */
2629         if (msg->cm_fields['M'] == NULL) {
2630                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2631                 return(-2);
2632         }
2633
2634         switch (msg->cm_format_type) {
2635         case 0:
2636                 strcpy(content_type, "text/x-citadel-variformat");
2637                 break;
2638         case 1:
2639                 strcpy(content_type, "text/plain");
2640                 break;
2641         case 4:
2642                 strcpy(content_type, "text/plain");
2643                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2644                 if (mptr != NULL) {
2645                         char *aptr;
2646                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2647                         striplt(content_type);
2648                         aptr = content_type;
2649                         while (!IsEmptyStr(aptr)) {
2650                                 if ((*aptr == ';')
2651                                     || (*aptr == ' ')
2652                                     || (*aptr == 13)
2653                                     || (*aptr == 10)) {
2654                                         *aptr = 0;
2655                                 }
2656                                 else aptr++;
2657                         }
2658                 }
2659         }
2660
2661         /* Goto the correct room */
2662         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2663         strcpy(hold_rm, CCC->room.QRname);
2664         strcpy(actual_rm, CCC->room.QRname);
2665         if (recps != NULL) {
2666                 strcpy(actual_rm, SENTITEMS);
2667         }
2668
2669         /* If the user is a twit, move to the twit room for posting */
2670         if (TWITDETECT) {
2671                 if (CCC->user.axlevel == 2) {
2672                         strcpy(hold_rm, actual_rm);
2673                         strcpy(actual_rm, config.c_twitroom);
2674                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2675                 }
2676         }
2677
2678         /* ...or if this message is destined for Aide> then go there. */
2679         if (!IsEmptyStr(force_room)) {
2680                 strcpy(actual_rm, force_room);
2681         }
2682
2683         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2684         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2685                 /* getroom(&CCC->room, actual_rm); */
2686                 usergoto(actual_rm, 0, 1, NULL, NULL);
2687         }
2688
2689         /*
2690          * If this message has no O (room) field, generate one.
2691          */
2692         if (msg->cm_fields['O'] == NULL) {
2693                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2694         }
2695
2696         /* Perform "before save" hooks (aborting if any return nonzero) */
2697         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2698         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2699
2700         /*
2701          * If this message has an Exclusive ID, and the room is replication
2702          * checking enabled, then do replication checks.
2703          */
2704         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2705                 ReplicationChecks(msg);
2706         }
2707
2708         /* Save it to disk */
2709         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2710         newmsgid = send_message(msg);
2711         if (newmsgid <= 0L) return(-5);
2712
2713         /* Write a supplemental message info record.  This doesn't have to
2714          * be a critical section because nobody else knows about this message
2715          * yet.
2716          */
2717         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2718         memset(&smi, 0, sizeof(struct MetaData));
2719         smi.meta_msgnum = newmsgid;
2720         smi.meta_refcount = 0;
2721         safestrncpy(smi.meta_content_type, content_type,
2722                         sizeof smi.meta_content_type);
2723
2724         /*
2725          * Measure how big this message will be when rendered as RFC822.
2726          * We do this for two reasons:
2727          * 1. We need the RFC822 length for the new metadata record, so the
2728          *    POP and IMAP services don't have to calculate message lengths
2729          *    while the user is waiting (multiplied by potentially hundreds
2730          *    or thousands of messages).
2731          * 2. If journaling is enabled, we will need an RFC822 version of the
2732          *    message to attach to the journalized copy.
2733          */
2734         if (CCC->redirect_buffer != NULL) {
2735                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2736                 abort();
2737         }
2738         CCC->redirect_buffer = malloc(SIZ);
2739         CCC->redirect_len = 0;
2740         CCC->redirect_alloc = SIZ;
2741         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
2742         smi.meta_rfc822_length = CCC->redirect_len;
2743         saved_rfc822_version = CCC->redirect_buffer;
2744         CCC->redirect_buffer = NULL;
2745         CCC->redirect_len = 0;
2746         CCC->redirect_alloc = 0;
2747
2748         PutMetaData(&smi);
2749
2750         /* Now figure out where to store the pointers */
2751         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2752
2753         /* If this is being done by the networker delivering a private
2754          * message, we want to BYPASS saving the sender's copy (because there
2755          * is no local sender; it would otherwise go to the Trashcan).
2756          */
2757         if ((!CCC->internal_pgm) || (recps == NULL)) {
2758                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2759                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2760                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2761                 }
2762         }
2763
2764         /* For internet mail, drop a copy in the outbound queue room */
2765         if (recps != NULL)
2766          if (recps->num_internet > 0) {
2767                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2768         }
2769
2770         /* If other rooms are specified, drop them there too. */
2771         if (recps != NULL)
2772          if (recps->num_room > 0)
2773           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2774                 extract_token(recipient, recps->recp_room, i,
2775                                         '|', sizeof recipient);
2776                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2777                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2778         }
2779
2780         /* Bump this user's messages posted counter. */
2781         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2782         lgetuser(&CCC->user, CCC->curr_user);
2783         CCC->user.posted = CCC->user.posted + 1;
2784         lputuser(&CCC->user);
2785
2786         /* Decide where bounces need to be delivered */
2787         if (CCC->logged_in) {
2788                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", CCC->user.fullname, config.c_nodename);
2789         }
2790         else {
2791                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", msg->cm_fields['A'], msg->cm_fields['N']);
2792         }
2793
2794         /* If this is private, local mail, make a copy in the
2795          * recipient's mailbox and bump the reference count.
2796          */
2797         if (recps != NULL)
2798          if (recps->num_local > 0)
2799           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2800                 extract_token(recipient, recps->recp_local, i,
2801                                         '|', sizeof recipient);
2802                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2803                         recipient);
2804                 if (getuser(&userbuf, recipient) == 0) {
2805                         // Add a flag so the Funambol module knows its mail
2806                         msg->cm_fields['W'] = strdup(recipient);
2807                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2808                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2809                         BumpNewMailCounter(userbuf.usernum);
2810                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2811                         /* Generate a instruction message for the Funambol notification
2812                          * server, in the same style as the SMTP queue
2813                          */
2814                            instr_alloc = 1024;
2815                            instr = malloc(instr_alloc);
2816                            snprintf(instr, instr_alloc,
2817                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2818                         "bounceto|%s\n",
2819                         SPOOLMIME, newmsgid, (long)time(NULL),
2820                         bounce_to
2821                         );
2822
2823                            imsg = malloc(sizeof(struct CtdlMessage));
2824                            memset(imsg, 0, sizeof(struct CtdlMessage));
2825                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2826                            imsg->cm_anon_type = MES_NORMAL;
2827                            imsg->cm_format_type = FMT_RFC822;
2828                            imsg->cm_fields['A'] = strdup("Citadel");
2829                            imsg->cm_fields['J'] = strdup("do not journal");
2830                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2831                            imsg->cm_fields['W'] = strdup(recipient);
2832                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM, 0);
2833                            CtdlFreeMessage(imsg);
2834                         }
2835                 }
2836                 else {
2837                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2838                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2839                                 newmsgid, 0, msg);
2840                 }
2841         }
2842
2843         /* Perform "after save" hooks */
2844         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2845         PerformMessageHooks(msg, EVT_AFTERSAVE);
2846
2847         /* For IGnet mail, we have to save a new copy into the spooler for
2848          * each recipient, with the R and D fields set to the recipient and
2849          * destination-node.  This has two ugly side effects: all other
2850          * recipients end up being unlisted in this recipient's copy of the
2851          * message, and it has to deliver multiple messages to the same
2852          * node.  We'll revisit this again in a year or so when everyone has
2853          * a network spool receiver that can handle the new style messages.
2854          */
2855         if (recps != NULL)
2856          if (recps->num_ignet > 0)
2857           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2858                 extract_token(recipient, recps->recp_ignet, i,
2859                                 '|', sizeof recipient);
2860
2861                 hold_R = msg->cm_fields['R'];
2862                 hold_D = msg->cm_fields['D'];
2863                 msg->cm_fields['R'] = malloc(SIZ);
2864                 msg->cm_fields['D'] = malloc(128);
2865                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2866                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2867
2868                 serialize_message(&smr, msg);
2869                 if (smr.len > 0) {
2870                         snprintf(submit_filename, sizeof submit_filename,
2871                                          "%s/netmail.%04lx.%04x.%04x",
2872                                          ctdl_netin_dir,
2873                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2874                         network_fp = fopen(submit_filename, "wb+");
2875                         if (network_fp != NULL) {
2876                                 fwrite(smr.ser, smr.len, 1, network_fp);
2877                                 fclose(network_fp);
2878                         }
2879                         free(smr.ser);
2880                 }
2881
2882                 free(msg->cm_fields['R']);
2883                 free(msg->cm_fields['D']);
2884                 msg->cm_fields['R'] = hold_R;
2885                 msg->cm_fields['D'] = hold_D;
2886         }
2887
2888         /* Go back to the room we started from */
2889         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2890         if (strcasecmp(hold_rm, CCC->room.QRname))
2891                 usergoto(hold_rm, 0, 1, NULL, NULL);
2892
2893         /* For internet mail, generate delivery instructions.
2894          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2895          * not happen because the delivery instructions message does not
2896          * contain a recipient.
2897          */
2898         if (recps != NULL)
2899          if (recps->num_internet > 0) {
2900                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2901                 instr_alloc = 1024;
2902                 instr = malloc(instr_alloc);
2903                 snprintf(instr, instr_alloc,
2904                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2905                         "bounceto|%s\n",
2906                         SPOOLMIME, newmsgid, (long)time(NULL),
2907                         bounce_to
2908                 );
2909
2910                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2911                         size_t tmp = strlen(instr);
2912                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2913                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2914                                 instr_alloc = instr_alloc * 2;
2915                                 instr = realloc(instr, instr_alloc);
2916                         }
2917                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2918                 }
2919
2920                 imsg = malloc(sizeof(struct CtdlMessage));
2921                 memset(imsg, 0, sizeof(struct CtdlMessage));
2922                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2923                 imsg->cm_anon_type = MES_NORMAL;
2924                 imsg->cm_format_type = FMT_RFC822;
2925                 imsg->cm_fields['A'] = strdup("Citadel");
2926                 imsg->cm_fields['J'] = strdup("do not journal");
2927                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2928                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
2929                 CtdlFreeMessage(imsg);
2930         }
2931
2932         /*
2933          * Any addresses to harvest for someone's address book?
2934          */
2935         if ( (CCC->logged_in) && (recps != NULL) ) {
2936                 collected_addresses = harvest_collected_addresses(msg);
2937         }
2938
2939         if (collected_addresses != NULL) {
2940                 aptr = (struct addresses_to_be_filed *)
2941                         malloc(sizeof(struct addresses_to_be_filed));
2942                 MailboxName(actual_rm, sizeof actual_rm,
2943                         &CCC->user, USERCONTACTSROOM);
2944                 aptr->roomname = strdup(actual_rm);
2945                 aptr->collected_addresses = collected_addresses;
2946                 begin_critical_section(S_ATBF);
2947                 aptr->next = atbf;
2948                 atbf = aptr;
2949                 end_critical_section(S_ATBF);
2950         }
2951
2952         /*
2953          * Determine whether this message qualifies for journaling.
2954          */
2955         if (msg->cm_fields['J'] != NULL) {
2956                 qualified_for_journaling = 0;
2957         }
2958         else {
2959                 if (recps == NULL) {
2960                         qualified_for_journaling = config.c_journal_pubmsgs;
2961                 }
2962                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2963                         qualified_for_journaling = config.c_journal_email;
2964                 }
2965                 else {
2966                         qualified_for_journaling = config.c_journal_pubmsgs;
2967                 }
2968         }
2969
2970         /*
2971          * Do we have to perform journaling?  If so, hand off the saved
2972          * RFC822 version will be handed off to the journaler for background
2973          * submit.  Otherwise, we have to free the memory ourselves.
2974          */
2975         if (saved_rfc822_version != NULL) {
2976                 if (qualified_for_journaling) {
2977                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2978                 }
2979                 else {
2980                         free(saved_rfc822_version);
2981                 }
2982         }
2983
2984         /* Done. */
2985         return(newmsgid);
2986 }
2987
2988
2989
2990
2991
2992 /*
2993  * Convenience function for generating small administrative messages.
2994  */
2995 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text,
2996                         int format_type, char *subject)
2997 {
2998         struct CtdlMessage *msg;
2999         struct recptypes *recp = NULL;
3000
3001         msg = malloc(sizeof(struct CtdlMessage));
3002         memset(msg, 0, sizeof(struct CtdlMessage));
3003         msg->cm_magic = CTDLMESSAGE_MAGIC;
3004         msg->cm_anon_type = MES_NORMAL;
3005         msg->cm_format_type = format_type;
3006
3007         if (from != NULL) {
3008                 msg->cm_fields['A'] = strdup(from);
3009         }
3010         else if (fromaddr != NULL) {
3011                 msg->cm_fields['A'] = strdup(fromaddr);
3012                 if (strchr(msg->cm_fields['A'], '@')) {
3013                         *strchr(msg->cm_fields['A'], '@') = 0;
3014                 }
3015         }
3016         else {
3017                 msg->cm_fields['A'] = strdup("Citadel");
3018         }
3019
3020         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
3021         if (room != NULL) msg->cm_fields['O'] = strdup(room);
3022         msg->cm_fields['N'] = strdup(NODENAME);
3023         if (to != NULL) {
3024                 msg->cm_fields['R'] = strdup(to);
3025                 recp = validate_recipients(to, NULL, 0);
3026         }
3027         if (subject != NULL) {
3028                 msg->cm_fields['U'] = strdup(subject);
3029         }
3030         msg->cm_fields['M'] = strdup(text);
3031
3032         CtdlSubmitMsg(msg, recp, room, 0);
3033         CtdlFreeMessage(msg);
3034         if (recp != NULL) free_recipients(recp);
3035 }
3036
3037
3038
3039 /*
3040  * Back end function used by CtdlMakeMessage() and similar functions
3041  */
3042 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
3043                         size_t maxlen,          /* maximum message length */
3044                         char *exist,            /* if non-null, append to it;
3045                                                    exist is ALWAYS freed  */
3046                         int crlf,               /* CRLF newlines instead of LF */
3047                         int sock                /* socket handle or 0 for this session's client socket */
3048                         ) {
3049         char buf[1024];
3050         int linelen;
3051         size_t message_len = 0;
3052         size_t buffer_len = 0;
3053         char *ptr;
3054         char *m;
3055         int flushing = 0;
3056         int finished = 0;
3057         int dotdot = 0;
3058
3059         if (exist == NULL) {
3060                 m = malloc(4096);
3061                 m[0] = 0;
3062                 buffer_len = 4096;
3063                 message_len = 0;
3064         }
3065         else {
3066                 message_len = strlen(exist);
3067                 buffer_len = message_len + 4096;
3068                 m = realloc(exist, buffer_len);
3069                 if (m == NULL) {
3070                         free(exist);
3071                         return m;
3072                 }
3073         }
3074
3075         /* Do we need to change leading ".." to "." for SMTP escaping? */
3076         if (!strcmp(terminator, ".")) {
3077                 dotdot = 1;
3078         }
3079
3080         /* flush the input if we have nowhere to store it */
3081         if (m == NULL) {
3082                 flushing = 1;
3083         }
3084
3085         /* read in the lines of message text one by one */
3086         do {
3087                 if (sock > 0) {
3088                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3089                 }
3090                 else {
3091                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3092                 }
3093                 if (!strcmp(buf, terminator)) finished = 1;
3094                 if (crlf) {
3095                         strcat(buf, "\r\n");
3096                 }
3097                 else {
3098                         strcat(buf, "\n");
3099                 }
3100
3101                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3102                 if (dotdot) {
3103                         if (!strncmp(buf, "..", 2)) {
3104                                 strcpy(buf, &buf[1]);
3105                         }
3106                 }
3107
3108                 if ( (!flushing) && (!finished) ) {
3109                         /* Measure the line */
3110                         linelen = strlen(buf);
3111
3112                         /* augment the buffer if we have to */
3113                         if ((message_len + linelen) >= buffer_len) {
3114                                 ptr = realloc(m, (buffer_len * 2) );
3115                                 if (ptr == NULL) {      /* flush if can't allocate */
3116                                         flushing = 1;
3117                                 } else {
3118                                         buffer_len = (buffer_len * 2);
3119                                         m = ptr;
3120                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3121                                 }
3122                         }
3123
3124                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3125                         * using functions like strcat() and strlen() because they
3126                         * traverse the entire buffer upon every call, and doing that
3127                         * for a multi-megabyte message slows it down beyond usability.
3128                         */
3129                         strcpy(&m[message_len], buf);
3130                         message_len += linelen;
3131                 }
3132
3133                 /* if we've hit the max msg length, flush the rest */
3134                 if (message_len >= maxlen) flushing = 1;
3135
3136         } while (!finished);
3137         return(m);
3138 }
3139
3140
3141
3142
3143 /*
3144  * Build a binary message to be saved on disk.
3145  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3146  * will become part of the message.  This means you are no longer
3147  * responsible for managing that memory -- it will be freed along with
3148  * the rest of the fields when CtdlFreeMessage() is called.)
3149  */
3150
3151 struct CtdlMessage *CtdlMakeMessage(
3152         struct ctdluser *author,        /* author's user structure */
3153         char *recipient,                /* NULL if it's not mail */
3154         char *recp_cc,                  /* NULL if it's not mail */
3155         char *room,                     /* room where it's going */
3156         int type,                       /* see MES_ types in header file */
3157         int format_type,                /* variformat, plain text, MIME... */
3158         char *fake_name,                /* who we're masquerading as */
3159         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3160         char *subject,                  /* Subject (optional) */
3161         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3162         char *preformatted_text,        /* ...or NULL to read text from client */
3163         char *references                /* Thread references */
3164 ) {
3165         char dest_node[256];
3166         char buf[1024];
3167         struct CtdlMessage *msg;
3168
3169         msg = malloc(sizeof(struct CtdlMessage));
3170         memset(msg, 0, sizeof(struct CtdlMessage));
3171         msg->cm_magic = CTDLMESSAGE_MAGIC;
3172         msg->cm_anon_type = type;
3173         msg->cm_format_type = format_type;
3174
3175         /* Don't confuse the poor folks if it's not routed mail. */
3176         strcpy(dest_node, "");
3177
3178         striplt(recipient);
3179         striplt(recp_cc);
3180
3181         /* Path or Return-Path */
3182         if (my_email == NULL) my_email = "";
3183
3184         if (!IsEmptyStr(my_email)) {
3185                 msg->cm_fields['P'] = strdup(my_email);
3186         }
3187         else {
3188                 snprintf(buf, sizeof buf, "%s", author->fullname);
3189                 msg->cm_fields['P'] = strdup(buf);
3190         }
3191         convert_spaces_to_underscores(msg->cm_fields['P']);
3192
3193         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3194         msg->cm_fields['T'] = strdup(buf);
3195
3196         if (fake_name[0])                                       /* author */
3197                 msg->cm_fields['A'] = strdup(fake_name);
3198         else
3199                 msg->cm_fields['A'] = strdup(author->fullname);
3200
3201         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3202                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3203         }
3204         else {
3205                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3206         }
3207
3208         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3209         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3210
3211         if (recipient[0] != 0) {
3212                 msg->cm_fields['R'] = strdup(recipient);
3213         }
3214         if (recp_cc[0] != 0) {
3215                 msg->cm_fields['Y'] = strdup(recp_cc);
3216         }
3217         if (dest_node[0] != 0) {
3218                 msg->cm_fields['D'] = strdup(dest_node);
3219         }
3220
3221         if (!IsEmptyStr(my_email)) {
3222                 msg->cm_fields['F'] = strdup(my_email);
3223         }
3224         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3225                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3226         }
3227
3228         if (subject != NULL) {
3229                 long length;
3230                 striplt(subject);
3231                 length = strlen(subject);
3232                 if (length > 0) {
3233                         long i;
3234                         long IsAscii;
3235                         IsAscii = -1;
3236                         i = 0;
3237                         while ((subject[i] != '\0') &&
3238                                (IsAscii = isascii(subject[i]) != 0 ))
3239                                 i++;
3240                         if (IsAscii != 0)
3241                                 msg->cm_fields['U'] = strdup(subject);
3242                         else /* ok, we've got utf8 in the string. */
3243                         {
3244                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3245                         }
3246
3247                 }
3248         }
3249
3250         if (supplied_euid != NULL) {
3251                 msg->cm_fields['E'] = strdup(supplied_euid);
3252         }
3253
3254         if (references != NULL) {
3255                 if (!IsEmptyStr(references)) {
3256                         msg->cm_fields['W'] = strdup(references);
3257                 }
3258         }
3259
3260         if (preformatted_text != NULL) {
3261                 msg->cm_fields['M'] = preformatted_text;
3262         }
3263         else {
3264                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3265         }
3266
3267         return(msg);
3268 }
3269
3270
3271 /*
3272  * Check to see whether we have permission to post a message in the current
3273  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3274  * returns 0 on success.
3275  */
3276 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf,
3277                                           size_t n,
3278                                           const char* RemoteIdentifier,
3279                                           int PostPublic) {
3280         int ra;
3281
3282         if (!(CC->logged_in) &&
3283             (PostPublic == POST_LOGGED_IN)) {
3284                 snprintf(errmsgbuf, n, "Not logged in.");
3285                 return (ERROR + NOT_LOGGED_IN);
3286         }
3287         else if (PostPublic == CHECK_EXISTANCE) {
3288                 return (0); // We're Evaling whether a recipient exists
3289         }
3290         else if (!(CC->logged_in)) {
3291
3292                 if ((CC->room.QRflags & QR_READONLY)) {
3293                         snprintf(errmsgbuf, n, "Not logged in.");
3294                         return (ERROR + NOT_LOGGED_IN);
3295                 }
3296                 if (CC->room.QRflags2 & QR2_MODERATED) {
3297                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3298                         return (ERROR + NOT_LOGGED_IN);
3299                 }
3300                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3301                         SpoolControl *sc;
3302                         char filename[SIZ];
3303                         int found;
3304
3305                         if (RemoteIdentifier == NULL)
3306                         {
3307                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3308                                 return (ERROR + USERNAME_REQUIRED);
3309                         }
3310
3311                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3312                         begin_critical_section(S_NETCONFIGS);
3313                         if (!read_spoolcontrol_file(&sc, filename))
3314                         {
3315                                 end_critical_section(S_NETCONFIGS);
3316                                 snprintf(errmsgbuf, n,
3317                                         "This mailing list only accepts posts from subscribers.");
3318                                 return (ERROR + NO_SUCH_USER);
3319                         }
3320                         end_critical_section(S_NETCONFIGS);
3321                         found = is_recipient (sc, RemoteIdentifier);
3322                         free_spoolcontrol_struct(&sc);
3323                         if (found) {
3324                                 return (0);
3325                         }
3326                         else {
3327                                 snprintf(errmsgbuf, n,
3328                                         "This mailing list only accepts posts from subscribers.");
3329                                 return (ERROR + NO_SUCH_USER);
3330                         }
3331                 }
3332                 return (0);
3333
3334         }
3335
3336         if ((CC->user.axlevel < 2)
3337             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3338                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3339                                 "(except in %s> to sysop)", MAILROOM);
3340                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3341         }
3342
3343         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3344         if (!(ra & UA_POSTALLOWED)) {
3345                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3346                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3347         }
3348
3349         strcpy(errmsgbuf, "Ok");
3350         return(0);
3351 }
3352
3353
3354 /*
3355  * Check to see if the specified user has Internet mail permission
3356  * (returns nonzero if permission is granted)
3357  */
3358 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3359
3360         /* Do not allow twits to send Internet mail */
3361         if (who->axlevel <= 2) return(0);
3362
3363         /* Globally enabled? */
3364         if (config.c_restrict == 0) return(1);
3365
3366         /* User flagged ok? */
3367         if (who->flags & US_INTERNET) return(2);
3368
3369         /* Aide level access? */
3370         if (who->axlevel >= 6) return(3);
3371
3372         /* No mail for you! */
3373         return(0);
3374 }
3375
3376
3377 /*
3378  * Validate recipients, count delivery types and errors, and handle aliasing
3379  * FIXME check for dupes!!!!!
3380  *
3381  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
3382  * were specified, or the number of addresses found invalid.
3383  *
3384  * Caller needs to free the result using free_recipients()
3385  */
3386 struct recptypes *validate_recipients(char *supplied_recipients,
3387                                       const char *RemoteIdentifier,
3388                                       int Flags) {
3389         struct recptypes *ret;
3390         char *recipients = NULL;
3391         char this_recp[256];
3392         char this_recp_cooked[256];
3393         char append[SIZ];
3394         int num_recps = 0;
3395         int i, j;
3396         int mailtype;
3397         int invalid;
3398         struct ctdluser tempUS;
3399         struct ctdlroom tempQR;
3400         struct ctdlroom tempQR2;
3401         int err = 0;
3402         char errmsg[SIZ];
3403         int in_quotes = 0;
3404
3405         /* Initialize */
3406         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3407         if (ret == NULL) return(NULL);
3408
3409         /* Set all strings to null and numeric values to zero */
3410         memset(ret, 0, sizeof(struct recptypes));
3411
3412         if (supplied_recipients == NULL) {
3413                 recipients = strdup("");
3414         }
3415         else {
3416                 recipients = strdup(supplied_recipients);
3417         }
3418
3419         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3420          * actually need, but it's healthier for the heap than doing lots of tiny
3421          * realloc() calls instead.
3422          */
3423
3424         ret->errormsg = malloc(strlen(recipients) + 1024);
3425         ret->recp_local = malloc(strlen(recipients) + 1024);
3426         ret->recp_internet = malloc(strlen(recipients) + 1024);
3427         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3428         ret->recp_room = malloc(strlen(recipients) + 1024);
3429         ret->display_recp = malloc(strlen(recipients) + 1024);
3430
3431         ret->errormsg[0] = 0;
3432         ret->recp_local[0] = 0;
3433         ret->recp_internet[0] = 0;
3434         ret->recp_ignet[0] = 0;
3435         ret->recp_room[0] = 0;
3436         ret->display_recp[0] = 0;
3437
3438         ret->recptypes_magic = RECPTYPES_MAGIC;
3439
3440         /* Change all valid separator characters to commas */
3441         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3442                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3443                         recipients[i] = ',';
3444                 }
3445         }
3446
3447         /* Now start extracting recipients... */
3448
3449         while (!IsEmptyStr(recipients)) {
3450
3451                 for (i=0; i<=strlen(recipients); ++i) {
3452                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3453                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3454                                 safestrncpy(this_recp, recipients, i+1);
3455                                 this_recp[i] = 0;
3456                                 if (recipients[i] == ',') {
3457                                         strcpy(recipients, &recipients[i+1]);
3458                                 }
3459                                 else {
3460                                         strcpy(recipients, "");
3461                                 }
3462                                 break;
3463                         }
3464                 }
3465
3466                 striplt(this_recp);
3467                 if (IsEmptyStr(this_recp))
3468                         break;
3469                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3470                 ++num_recps;
3471                 mailtype = alias(this_recp);
3472                 mailtype = alias(this_recp);
3473                 mailtype = alias(this_recp);
3474                 j = 0;
3475                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3476                         if (this_recp[j]=='_') {
3477                                 this_recp_cooked[j] = ' ';
3478                         }
3479                         else {
3480                                 this_recp_cooked[j] = this_recp[j];
3481                         }
3482                 }
3483                 this_recp_cooked[j] = '\0';
3484                 invalid = 0;
3485                 errmsg[0] = 0;
3486                 switch(mailtype) {
3487                         case MES_LOCAL:
3488                                 if (!strcasecmp(this_recp, "sysop")) {
3489                                         ++ret->num_room;
3490                                         strcpy(this_recp, config.c_aideroom);
3491                                         if (!IsEmptyStr(ret->recp_room)) {
3492                                                 strcat(ret->recp_room, "|");
3493                                         }
3494                                         strcat(ret->recp_room, this_recp);
3495                                 }
3496                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3497                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3498
3499                                         /* Save room so we can restore it later */
3500                                         tempQR2 = CC->room;
3501                                         CC->room = tempQR;
3502
3503                                         /* Check permissions to send mail to this room */
3504                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg,
3505                                                                                     sizeof errmsg,
3506                                                                                     RemoteIdentifier,
3507                                                                                     Flags
3508                                         );
3509                                         if (err)
3510                                         {
3511                                                 ++ret->num_error;
3512                                                 invalid = 1;
3513                                         }
3514                                         else {
3515                                                 ++ret->num_room;
3516                                                 if (!IsEmptyStr(ret->recp_room)) {
3517                                                         strcat(ret->recp_room, "|");
3518                                                 }
3519                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3520                                         }
3521
3522                                         /* Restore room in case something needs it */
3523                                         CC->room = tempQR2;
3524
3525                                 }
3526                                 else if (getuser(&tempUS, this_recp) == 0) {
3527                                         ++ret->num_local;
3528                                         strcpy(this_recp, tempUS.fullname);
3529                                         if (!IsEmptyStr(ret->recp_local)) {
3530                                                 strcat(ret->recp_local, "|");
3531                                         }
3532                                         strcat(ret->recp_local, this_recp);
3533                                 }
3534                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3535                                         ++ret->num_local;
3536                                         strcpy(this_recp, tempUS.fullname);
3537                                         if (!IsEmptyStr(ret->recp_local)) {
3538                                                 strcat(ret->recp_local, "|");
3539                                         }
3540                                         strcat(ret->recp_local, this_recp);
3541                                 }
3542                                 else {
3543                                         ++ret->num_error;
3544                                         invalid = 1;
3545                                 }
3546                                 break;
3547                         case MES_INTERNET:
3548                                 /* Yes, you're reading this correctly: if the target
3549                                  * domain points back to the local system or an attached
3550                                  * Citadel directory, the address is invalid.  That's
3551                                  * because if the address were valid, we would have
3552                                  * already translated it to a local address by now.
3553                                  */
3554                                 if (IsDirectory(this_recp, 0)) {
3555                                         ++ret->num_error;
3556                                         invalid = 1;
3557                                 }
3558                                 else {
3559                                         ++ret->num_internet;
3560                                         if (!IsEmptyStr(ret->recp_internet)) {
3561                                                 strcat(ret->recp_internet, "|");
3562                                         }
3563                                         strcat(ret->recp_internet, this_recp);
3564                                 }
3565                                 break;
3566                         case MES_IGNET:
3567                                 ++ret->num_ignet;
3568                                 if (!IsEmptyStr(ret->recp_ignet)) {
3569                                         strcat(ret->recp_ignet, "|");
3570                                 }
3571                                 strcat(ret->recp_ignet, this_recp);
3572                                 break;
3573                         case MES_ERROR:
3574                                 ++ret->num_error;
3575                                 invalid = 1;
3576                                 break;
3577                 }
3578                 if (invalid) {
3579                         if (IsEmptyStr(errmsg)) {
3580                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3581                         }
3582                         else {
3583                                 snprintf(append, sizeof append, "%s", errmsg);
3584                         }
3585                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3586                                 if (!IsEmptyStr(ret->errormsg)) {
3587                                         strcat(ret->errormsg, "; ");
3588                                 }
3589                                 strcat(ret->errormsg, append);
3590                         }
3591                 }
3592                 else {
3593                         if (IsEmptyStr(ret->display_recp)) {
3594                                 strcpy(append, this_recp);
3595                         }
3596                         else {
3597                                 snprintf(append, sizeof append, ", %s", this_recp);
3598                         }
3599                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3600                                 strcat(ret->display_recp, append);
3601                         }
3602                 }
3603         }
3604
3605         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3606            ret->num_room + ret->num_error) == 0) {
3607                 ret->num_error = (-1);
3608                 strcpy(ret->errormsg, "No recipients specified.");
3609         }
3610
3611         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3612         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3613         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3614         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3615         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3616         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3617
3618         free(recipients);
3619         return(ret);
3620 }
3621
3622
3623 /*
3624  * Destructor for struct recptypes
3625  */
3626 void free_recipients(struct recptypes *valid) {
3627
3628         if (valid == NULL) {
3629                 return;
3630         }
3631
3632         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3633                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3634                 abort();
3635         }
3636
3637         if (valid->errormsg != NULL)            free(valid->errormsg);
3638         if (valid->recp_local != NULL)          free(valid->recp_local);
3639         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3640         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3641         if (valid->recp_room != NULL)           free(valid->recp_room);
3642         if (valid->display_recp != NULL)        free(valid->display_recp);
3643         free(valid);
3644 }
3645
3646
3647
3648 /*
3649  * message entry  -  mode 0 (normal)
3650  */
3651 void cmd_ent0(char *entargs)
3652 {
3653         int post = 0;
3654         char recp[SIZ];
3655         char cc[SIZ];
3656         char bcc[SIZ];
3657         char supplied_euid[128];
3658         int anon_flag = 0;
3659         int format_type = 0;
3660         char newusername[256];
3661         char newuseremail[256];
3662         struct CtdlMessage *msg;
3663         int anonymous = 0;
3664         char errmsg[SIZ];
3665         int err = 0;
3666         struct recptypes *valid = NULL;
3667         struct recptypes *valid_to = NULL;
3668         struct recptypes *valid_cc = NULL;
3669         struct recptypes *valid_bcc = NULL;
3670         char subject[SIZ];
3671         int subject_required = 0;
3672         int do_confirm = 0;
3673         long msgnum;
3674         int i, j;
3675         char buf[256];
3676         int newuseremail_ok = 0;
3677         char references[SIZ];
3678         char *ptr;
3679
3680         unbuffer_output();
3681
3682         post = extract_int(entargs, 0);
3683         extract_token(recp, entargs, 1, '|', sizeof recp);
3684         anon_flag = extract_int(entargs, 2);
3685         format_type = extract_int(entargs, 3);
3686         extract_token(subject, entargs, 4, '|', sizeof subject);
3687         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3688         do_confirm = extract_int(entargs, 6);
3689         extract_token(cc, entargs, 7, '|', sizeof cc);
3690         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3691         switch(CC->room.QRdefaultview) {
3692                 case VIEW_NOTES:
3693                 case VIEW_WIKI:
3694                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3695                         break;
3696                 default:
3697                         supplied_euid[0] = 0;
3698                         break;
3699         }
3700         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3701         extract_token(references, entargs, 11, '|', sizeof references);
3702         for (ptr=references; *ptr != 0; ++ptr) {
3703                 if (*ptr == '!') *ptr = '|';
3704         }
3705
3706         /* first check to make sure the request is valid. */
3707
3708         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3709         if (err)
3710         {
3711                 cprintf("%d %s\n", err, errmsg);
3712                 return;
3713         }
3714
3715         /* Check some other permission type things. */
3716
3717         if (IsEmptyStr(newusername)) {
3718                 strcpy(newusername, CC->user.fullname);
3719         }
3720         if (  (CC->user.axlevel < 6)
3721            && (strcasecmp(newusername, CC->user.fullname))
3722            && (strcasecmp(newusername, CC->cs_inet_fn))
3723         ) {
3724                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3725                         ERROR + HIGHER_ACCESS_REQUIRED,
3726                         newusername
3727                 );
3728                 return;
3729         }
3730
3731
3732         if (IsEmptyStr(newuseremail)) {
3733                 newuseremail_ok = 1;
3734         }
3735
3736         if (!IsEmptyStr(newuseremail)) {
3737                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3738                         newuseremail_ok = 1;
3739                 }
3740                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3741                         j = num_tokens(CC->cs_inet_other_emails, '|');
3742                         for (i=0; i<j; ++i) {
3743                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3744                                 if (!strcasecmp(newuseremail, buf)) {
3745                                         newuseremail_ok = 1;
3746                                 }
3747                         }
3748                 }
3749         }
3750
3751         if (!newuseremail_ok) {
3752                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3753                         ERROR + HIGHER_ACCESS_REQUIRED,
3754                         newuseremail
3755                 );
3756                 return;
3757         }
3758
3759         CC->cs_flags |= CS_POSTING;
3760
3761         /* In mailbox rooms we have to behave a little differently --
3762          * make sure the user has specified at least one recipient.  Then
3763          * validate the recipient(s).  We do this for the Mail> room, as
3764          * well as any room which has the "Mailbox" view set.
3765          */
3766
3767         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3768            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3769         ) {
3770                 if (CC->user.axlevel < 2) {
3771                         strcpy(recp, "sysop");
3772                         strcpy(cc, "");
3773                         strcpy(bcc, "");
3774                 }
3775
3776                 valid_to = validate_recipients(recp, NULL, 0);
3777                 if (valid_to->num_error > 0) {
3778                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3779                         free_recipients(valid_to);
3780                         return;
3781                 }
3782
3783                 valid_cc = validate_recipients(cc, NULL, 0);
3784                 if (valid_cc->num_error > 0) {
3785                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3786                         free_recipients(valid_to);
3787                         free_recipients(valid_cc);
3788                         return;
3789                 }
3790
3791                 valid_bcc = validate_recipients(bcc, NULL, 0);
3792                 if (valid_bcc->num_error > 0) {
3793                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3794                         free_recipients(valid_to);
3795                         free_recipients(valid_cc);
3796                         free_recipients(valid_bcc);
3797                         return;
3798                 }
3799
3800                 /* Recipient required, but none were specified */
3801                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3802                         free_recipients(valid_to);
3803                         free_recipients(valid_cc);
3804                         free_recipients(valid_bcc);
3805                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3806                         return;
3807                 }
3808
3809                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3810                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3811                                 cprintf("%d You do not have permission "
3812                                         "to send Internet mail.\n",
3813                                         ERROR + HIGHER_ACCESS_REQUIRED);
3814                                 free_recipients(valid_to);
3815                                 free_recipients(valid_cc);
3816                                 free_recipients(valid_bcc);
3817                                 return;
3818                         }
3819                 }
3820
3821                 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)
3822                    && (CC->user.axlevel < 4) ) {
3823                         cprintf("%d Higher access required for network mail.\n",
3824                                 ERROR + HIGHER_ACCESS_REQUIRED);
3825                         free_recipients(valid_to);
3826                         free_recipients(valid_cc);
3827                         free_recipients(valid_bcc);
3828                         return;
3829                 }
3830
3831                 if ((RESTRICT_INTERNET == 1)
3832                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3833                     && ((CC->user.flags & US_INTERNET) == 0)
3834                     && (!CC->internal_pgm)) {
3835                         cprintf("%d You don't have access to Internet mail.\n",
3836                                 ERROR + HIGHER_ACCESS_REQUIRED);
3837                         free_recipients(valid_to);
3838                         free_recipients(valid_cc);
3839                         free_recipients(valid_bcc);
3840                         return;
3841                 }
3842
3843         }
3844
3845         /* Is this a room which has anonymous-only or anonymous-option? */
3846         anonymous = MES_NORMAL;
3847         if (CC->room.QRflags & QR_ANONONLY) {
3848                 anonymous = MES_ANONONLY;
3849         }
3850         if (CC->room.QRflags & QR_ANONOPT) {
3851                 if (anon_flag == 1) {   /* only if the user requested it */
3852                         anonymous = MES_ANONOPT;
3853                 }
3854         }
3855
3856         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3857                 recp[0] = 0;
3858         }
3859
3860         /* Recommend to the client that the use of a message subject is
3861          * strongly recommended in this room, if either the SUBJECTREQ flag
3862          * is set, or if there is one or more Internet email recipients.
3863          */
3864         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3865         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3866         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3867         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3868
3869         /* If we're only checking the validity of the request, return
3870          * success without creating the message.
3871          */
3872         if (post == 0) {
3873                 cprintf("%d %s|%d\n", CIT_OK,
3874                         ((valid_to != NULL) ? valid_to->display_recp : ""),
3875                         subject_required);
3876                 free_recipients(valid_to);
3877                 free_recipients(valid_cc);
3878                 free_recipients(valid_bcc);
3879                 return;
3880         }
3881
3882         /* We don't need these anymore because we'll do it differently below */
3883         free_recipients(valid_to);
3884         free_recipients(valid_cc);
3885         free_recipients(valid_bcc);
3886
3887         /* Read in the message from the client. */
3888         if (do_confirm) {
3889                 cprintf("%d send message\n", START_CHAT_MODE);
3890         } else {
3891                 cprintf("%d send message\n", SEND_LISTING);
3892         }
3893
3894         msg = CtdlMakeMessage(&CC->user, recp, cc,
3895                 CC->room.QRname, anonymous, format_type,
3896                 newusername, newuseremail, subject,
3897                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3898                 NULL, references);
3899
3900         /* Put together one big recipients struct containing to/cc/bcc all in
3901          * one.  This is for the envelope.
3902          */
3903         char *all_recps = malloc(SIZ * 3);
3904         strcpy(all_recps, recp);
3905         if (!IsEmptyStr(cc)) {
3906                 if (!IsEmptyStr(all_recps)) {
3907                         strcat(all_recps, ",");
3908                 }
3909                 strcat(all_recps, cc);
3910         }
3911         if (!IsEmptyStr(bcc)) {
3912                 if (!IsEmptyStr(all_recps)) {
3913                         strcat(all_recps, ",");
3914                 }
3915                 strcat(all_recps, bcc);
3916         }
3917         if (!IsEmptyStr(all_recps)) {
3918                 valid = validate_recipients(all_recps, NULL, 0);
3919         }
3920         else {
3921                 valid = NULL;
3922         }
3923         free(all_recps);
3924
3925         if (msg != NULL) {
3926                 msgnum = CtdlSubmitMsg(msg, valid, "", QP_EADDR);
3927
3928                 if (do_confirm) {
3929                         cprintf("%ld\n", msgnum);
3930                         if (msgnum >= 0L) {
3931                                 cprintf("Message accepted.\n");
3932                         }
3933                         else {
3934                                 cprintf("Internal error.\n");
3935                         }
3936                         if (msg->cm_fields['E'] != NULL) {
3937                                 cprintf("%s\n", msg->cm_fields['E']);
3938                         } else {
3939                                 cprintf("\n");
3940                         }
3941                         cprintf("000\n");
3942                 }
3943
3944                 CtdlFreeMessage(msg);
3945         }
3946         if (valid != NULL) {
3947                 free_recipients(valid);
3948         }
3949         return;
3950 }
3951
3952
3953
3954 /*
3955  * API function to delete messages which match a set of criteria
3956  * (returns the actual number of messages deleted)
3957  */
3958 int CtdlDeleteMessages(char *room_name,         /* which room */
3959                         long *dmsgnums,         /* array of msg numbers to be deleted */
3960                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3961                         char *content_type      /* or "" for any.  regular expressions expected. */
3962 )
3963 {
3964         struct ctdlroom qrbuf;
3965         struct cdbdata *cdbfr;
3966         long *msglist = NULL;
3967         long *dellist = NULL;
3968         int num_msgs = 0;
3969         int i, j;
3970         int num_deleted = 0;
3971         int delete_this;
3972         struct MetaData smi;
3973         regex_t re;
3974         regmatch_t pm;
3975         int need_to_free_re = 0;
3976
3977         if (content_type) if (!IsEmptyStr(content_type)) {
3978                 regcomp(&re, content_type, 0);
3979                 need_to_free_re = 1;
3980         }
3981         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3982                 room_name, num_dmsgnums, content_type);
3983
3984         /* get room record, obtaining a lock... */
3985         if (lgetroom(&qrbuf, room_name) != 0) {
3986                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3987                         room_name);
3988                 if (need_to_free_re) regfree(&re);
3989                 return (0);     /* room not found */
3990         }
3991         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3992
3993         if (cdbfr != NULL) {
3994                 dellist = malloc(cdbfr->len);
3995                 msglist = (long *) cdbfr->ptr;
3996                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
3997                 num_msgs = cdbfr->len / sizeof(long);
3998                 cdb_free(cdbfr);
3999         }
4000         if (num_msgs > 0) {
4001                 for (i = 0; i < num_msgs; ++i) {
4002                         delete_this = 0x00;
4003
4004                         /* Set/clear a bit for each criterion */
4005
4006                         /* 0 messages in the list or a null list means that we are
4007                          * interested in deleting any messages which meet the other criteria.
4008                          */
4009                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
4010                                 delete_this |= 0x01;
4011                         }
4012                         else {
4013                                 for (j=0; j<num_dmsgnums; ++j) {
4014                                         if (msglist[i] == dmsgnums[j]) {
4015                                                 delete_this |= 0x01;
4016                                         }
4017                                 }
4018                         }
4019
4020                         if (IsEmptyStr(content_type)) {
4021                                 delete_this |= 0x02;
4022                         } else {
4023                                 GetMetaData(&smi, msglist[i]);
4024                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
4025                                         delete_this |= 0x02;
4026                                 }
4027                         }
4028
4029                         /* Delete message only if all bits are set */
4030                         if (delete_this == 0x03) {
4031                                 dellist[num_deleted++] = msglist[i];
4032                                 msglist[i] = 0L;
4033                         }
4034                 }
4035
4036                 num_msgs = sort_msglist(msglist, num_msgs);
4037                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
4038                           msglist, (int)(num_msgs * sizeof(long)));
4039
4040                 qrbuf.QRhighest = msglist[num_msgs - 1];
4041         }
4042         lputroom(&qrbuf);
4043
4044         /* Go through the messages we pulled out of the index, and decrement
4045          * their reference counts by 1.  If this is the only room the message
4046          * was in, the reference count will reach zero and the message will
4047          * automatically be deleted from the database.  We do this in a
4048          * separate pass because there might be plug-in hooks getting called,
4049          * and we don't want that happening during an S_ROOMS critical
4050          * section.
4051          */
4052         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4053                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4054                 AdjRefCount(dellist[i], -1);
4055         }
4056
4057         /* Now free the memory we used, and go away. */
4058         if (msglist != NULL) free(msglist);
4059         if (dellist != NULL) free(dellist);
4060         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4061         if (need_to_free_re) regfree(&re);
4062         return (num_deleted);
4063 }
4064
4065
4066
4067 /*
4068  * Check whether the current user has permission to delete messages from
4069  * the current room (returns 1 for yes, 0 for no)
4070  */
4071 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4072         int ra;
4073         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4074         if (ra & UA_DELETEALLOWED) return(1);
4075         return(0);
4076 }
4077
4078
4079
4080
4081 /*
4082  * Delete message from current room
4083  */
4084 void cmd_dele(char *args)
4085 {
4086         int num_deleted;
4087         int i;
4088         char msgset[SIZ];
4089         char msgtok[32];
4090         long *msgs;
4091         int num_msgs = 0;
4092
4093         extract_token(msgset, args, 0, '|', sizeof msgset);
4094         num_msgs = num_tokens(msgset, ',');
4095         if (num_msgs < 1) {
4096                 cprintf("%d Nothing to do.\n", CIT_OK);
4097                 return;
4098         }
4099
4100         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4101                 cprintf("%d Higher access required.\n",
4102                         ERROR + HIGHER_ACCESS_REQUIRED);
4103                 return;
4104         }
4105
4106         /*
4107          * Build our message set to be moved/copied
4108          */
4109         msgs = malloc(num_msgs * sizeof(long));
4110         for (i=0; i<num_msgs; ++i) {
4111                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4112                 msgs[i] = atol(msgtok);
4113         }
4114
4115         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4116         free(msgs);
4117
4118         if (num_deleted) {
4119                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4120                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4121         } else {
4122                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4123         }
4124 }
4125
4126
4127 /*
4128  * Back end API function for moves and deletes (multiple messages)
4129  */
4130 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4131         int err;
4132
4133         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4134         if (err != 0) return(err);
4135
4136         return(0);
4137 }
4138
4139
4140
4141
4142 /*
4143  * move or copy a message to another room
4144  */
4145 void cmd_move(char *args)
4146 {
4147         char msgset[SIZ];
4148         char msgtok[32];
4149         long *msgs;
4150         int num_msgs = 0;
4151
4152         char targ[ROOMNAMELEN];
4153         struct ctdlroom qtemp;
4154         int err;
4155         int is_copy = 0;
4156         int ra;
4157         int permit = 0;
4158         int i;
4159
4160         extract_token(msgset, args, 0, '|', sizeof msgset);
4161         num_msgs = num_tokens(msgset, ',');
4162         if (num_msgs < 1) {
4163                 cprintf("%d Nothing to do.\n", CIT_OK);
4164                 return;
4165         }
4166
4167         extract_token(targ, args, 1, '|', sizeof targ);
4168         convert_room_name_macros(targ, sizeof targ);
4169         targ[ROOMNAMELEN - 1] = 0;
4170         is_copy = extract_int(args, 2);
4171
4172         if (getroom(&qtemp, targ) != 0) {
4173                 cprintf("%d '%s' does not exist.\n",
4174                         ERROR + ROOM_NOT_FOUND, targ);
4175                 return;
4176         }
4177
4178         getuser(&CC->user, CC->curr_user);
4179         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4180
4181         /* Check for permission to perform this operation.
4182          * Remember: "CC->room" is source, "qtemp" is target.
4183          */
4184         permit = 0;
4185
4186         /* Aides can move/copy */
4187         if (CC->user.axlevel >= 6) permit = 1;
4188
4189         /* Room aides can move/copy */
4190         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4191
4192         /* Permit move/copy from personal rooms */
4193         if ((CC->room.QRflags & QR_MAILBOX)
4194            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4195
4196         /* Permit only copy from public to personal room */
4197         if ( (is_copy)
4198            && (!(CC->room.QRflags & QR_MAILBOX))
4199            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4200
4201         /* Permit message removal from collaborative delete rooms */
4202         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4203
4204         /* Users allowed to post into the target room may move into it too. */
4205         if ((CC->room.QRflags & QR_MAILBOX) &&
4206             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4207
4208         /* User must have access to target room */
4209         if (!(ra & UA_KNOWN))  permit = 0;
4210
4211         if (!permit) {
4212                 cprintf("%d Higher access required.\n",
4213                         ERROR + HIGHER_ACCESS_REQUIRED);
4214                 return;
4215         }
4216
4217         /*
4218          * Build our message set to be moved/copied
4219          */
4220         msgs = malloc(num_msgs * sizeof(long));
4221         for (i=0; i<num_msgs; ++i) {
4222                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4223                 msgs[i] = atol(msgtok);
4224         }
4225
4226         /*
4227          * Do the copy
4228          */
4229         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4230         if (err != 0) {
4231                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4232                         err, targ, err);
4233                 free(msgs);
4234                 return;
4235         }
4236
4237         /* Now delete the message from the source room,
4238          * if this is a 'move' rather than a 'copy' operation.
4239          */
4240         if (is_copy == 0) {
4241                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4242         }
4243         free(msgs);
4244
4245         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4246 }
4247
4248
4249
4250 /*
4251  * GetMetaData()  -  Get the supplementary record for a message
4252  */
4253 void GetMetaData(struct MetaData *smibuf, long msgnum)
4254 {
4255
4256         struct cdbdata *cdbsmi;
4257         long TheIndex;
4258
4259         memset(smibuf, 0, sizeof(struct MetaData));
4260         smibuf->meta_msgnum = msgnum;
4261         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4262
4263         /* Use the negative of the message number for its supp record index */
4264         TheIndex = (0L - msgnum);
4265
4266         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4267         if (cdbsmi == NULL) {
4268                 return;         /* record not found; go with defaults */
4269         }
4270         memcpy(smibuf, cdbsmi->ptr,
4271                ((cdbsmi->len > sizeof(struct MetaData)) ?
4272                 sizeof(struct MetaData) : cdbsmi->len));
4273         cdb_free(cdbsmi);
4274         return;
4275 }
4276
4277
4278 /*
4279  * PutMetaData()  -  (re)write supplementary record for a message
4280  */
4281 void PutMetaData(struct MetaData *smibuf)
4282 {
4283         long TheIndex;
4284
4285         /* Use the negative of the message number for the metadata db index */
4286         TheIndex = (0L - smibuf->meta_msgnum);
4287
4288         cdb_store(CDB_MSGMAIN,
4289                   &TheIndex, (int)sizeof(long),
4290                   smibuf, (int)sizeof(struct MetaData));
4291
4292 }
4293
4294 /*
4295  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4296  *                 (These are just queued -- we actually process them later.)
4297  */
4298 void AdjRefCount(long msgnum, int incr)
4299 {
4300         struct arcq new_arcq;
4301
4302         begin_critical_section(S_SUPPMSGMAIN);
4303         if (arcfp == NULL) {
4304                 arcfp = fopen(file_arcq, "ab+");
4305         }
4306         end_critical_section(S_SUPPMSGMAIN);
4307
4308         /* msgnum < 0 means that we're trying to close the file */
4309         if (msgnum < 0) {
4310                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4311                 begin_critical_section(S_SUPPMSGMAIN);
4312                 if (arcfp != NULL) {
4313                         fclose(arcfp);
4314                         arcfp = NULL;
4315                 }
4316                 end_critical_section(S_SUPPMSGMAIN);
4317                 return;
4318         }
4319
4320         /*
4321          * If we can't open the queue, perform the operation synchronously.
4322          */
4323         if (arcfp == NULL) {
4324                 TDAP_AdjRefCount(msgnum, incr);
4325                 return;
4326         }
4327
4328         new_arcq.arcq_msgnum = msgnum;
4329         new_arcq.arcq_delta = incr;
4330         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4331         fflush(arcfp);
4332
4333         return;
4334 }
4335
4336
4337 /*
4338  * TDAP_ProcessAdjRefCountQueue()
4339  *
4340  * Process the queue of message count adjustments that was created by calls
4341  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4342  * for each one.  This should be an "off hours" operation.
4343  */
4344 int TDAP_ProcessAdjRefCountQueue(void)
4345 {
4346         char file_arcq_temp[PATH_MAX];
4347         int r;
4348         FILE *fp;
4349         struct arcq arcq_rec;
4350         int num_records_processed = 0;
4351
4352         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s.%04x", file_arcq, rand());
4353
4354         begin_critical_section(S_SUPPMSGMAIN);
4355         if (arcfp != NULL) {
4356                 fclose(arcfp);
4357                 arcfp = NULL;
4358         }
4359
4360         r = link(file_arcq, file_arcq_temp);
4361         if (r != 0) {
4362                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4363                 end_critical_section(S_SUPPMSGMAIN);
4364                 return(num_records_processed);
4365         }
4366
4367         unlink(file_arcq);
4368         end_critical_section(S_SUPPMSGMAIN);
4369
4370         fp = fopen(file_arcq_temp, "rb");
4371         if (fp == NULL) {
4372                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4373                 return(num_records_processed);
4374         }
4375
4376         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4377                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4378                 ++num_records_processed;
4379         }
4380
4381         fclose(fp);
4382         r = unlink(file_arcq_temp);
4383         if (r != 0) {
4384                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4385         }
4386
4387         return(num_records_processed);
4388 }
4389
4390
4391
4392 /*
4393  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4394  *                      This one does it "for real" because it's called by
4395  *                      the autopurger function that processes the queue
4396  *                      created by AdjRefCount().   If a message's reference
4397  *                      count becomes zero, we also delete the message from
4398  *                      disk and de-index it.
4399  */
4400 void TDAP_AdjRefCount(long msgnum, int incr)
4401 {
4402
4403         struct MetaData smi;
4404         long delnum;
4405
4406         /* This is a *tight* critical section; please keep it that way, as
4407          * it may get called while nested in other critical sections.
4408          * Complicating this any further will surely cause deadlock!
4409          */
4410         begin_critical_section(S_SUPPMSGMAIN);
4411         GetMetaData(&smi, msgnum);
4412         smi.meta_refcount += incr;
4413         PutMetaData(&smi);
4414         end_critical_section(S_SUPPMSGMAIN);
4415         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %+d, is now %d\n",
4416                 msgnum, incr, smi.meta_refcount);
4417
4418         /* If the reference count is now zero, delete the message
4419          * (and its supplementary record as well).
4420          */
4421         if (smi.meta_refcount == 0) {
4422                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4423
4424                 /* Call delete hooks with NULL room to show it has gone altogether */
4425                 PerformDeleteHooks(NULL, msgnum);
4426
4427                 /* Remove from message base */
4428                 delnum = msgnum;
4429                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4430                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4431
4432                 /* Remove metadata record */
4433                 delnum = (0L - msgnum);
4434                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4435         }
4436
4437 }
4438
4439 /*
4440  * Write a generic object to this room
4441  *
4442  * Note: this could be much more efficient.  Right now we use two temporary
4443  * files, and still pull the message into memory as with all others.
4444  */
4445 void CtdlWriteObject(char *req_room,                    /* Room to stuff it in */
4446                         char *content_type,             /* MIME type of this object */
4447                         char *raw_message,              /* Data to be written */
4448                         off_t raw_length,               /* Size of raw_message */
4449                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4450                         int is_binary,                  /* Is encoding necessary? */
4451                         int is_unique,                  /* Del others of this type? */
4452                         unsigned int flags              /* Internal save flags */
4453                         )
4454 {
4455
4456         struct ctdlroom qrbuf;
4457         char roomname[ROOMNAMELEN];
4458         struct CtdlMessage *msg;
4459         char *encoded_message = NULL;
4460
4461         if (is_mailbox != NULL) {
4462                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4463         }
4464         else {
4465                 safestrncpy(roomname, req_room, sizeof(roomname));
4466         }
4467
4468         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4469
4470         if (is_binary) {
4471                 encoded_message = malloc((size_t) (((raw_length * 134) / 100) + 4096 ) );
4472         }
4473         else {
4474                 encoded_message = malloc((size_t)(raw_length + 4096));
4475         }
4476
4477         sprintf(encoded_message, "Content-type: %s\n", content_type);
4478
4479         if (is_binary) {
4480                 sprintf(&encoded_message[strlen(encoded_message)],
4481                         "Content-transfer-encoding: base64\n\n"
4482                 );
4483         }
4484         else {
4485                 sprintf(&encoded_message[strlen(encoded_message)],
4486                         "Content-transfer-encoding: 7bit\n\n"
4487                 );
4488         }
4489
4490         if (is_binary) {
4491                 CtdlEncodeBase64(
4492                         &encoded_message[strlen(encoded_message)],
4493                         raw_message,
4494                         (int)raw_length,
4495                         0
4496                 );
4497         }
4498         else {
4499                 memcpy(
4500                         &encoded_message[strlen(encoded_message)],
4501                         raw_message,
4502                         (int)(raw_length+1)
4503                 );
4504         }
4505
4506         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4507         msg = malloc(sizeof(struct CtdlMessage));
4508         memset(msg, 0, sizeof(struct CtdlMessage));
4509         msg->cm_magic = CTDLMESSAGE_MAGIC;
4510         msg->cm_anon_type = MES_NORMAL;
4511         msg->cm_format_type = 4;
4512         msg->cm_fields['A'] = strdup(CC->user.fullname);
4513         msg->cm_fields['O'] = strdup(req_room);
4514         msg->cm_fields['N'] = strdup(config.c_nodename);
4515         msg->cm_fields['H'] = strdup(config.c_humannode);
4516         msg->cm_flags = flags;
4517
4518         msg->cm_fields['M'] = encoded_message;
4519
4520         /* Create the requested room if we have to. */
4521         if (getroom(&qrbuf, roomname) != 0) {
4522                 create_room(roomname,
4523                         ( (is_mailbox != NULL) ? 5 : 3 ),
4524                         "", 0, 1, 0, VIEW_BBS);
4525         }
4526         /* If the caller specified this object as unique, delete all
4527          * other objects of this type that are currently in the room.
4528          */
4529         if (is_unique) {
4530                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4531                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4532                 );
4533         }
4534         /* Now write the data */
4535         CtdlSubmitMsg(msg, NULL, roomname, 0);
4536         CtdlFreeMessage(msg);
4537 }
4538
4539
4540
4541
4542
4543
4544 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4545         config_msgnum = msgnum;
4546 }
4547
4548
4549 char *CtdlGetSysConfig(char *sysconfname) {
4550         char hold_rm[ROOMNAMELEN];
4551         long msgnum;
4552         char *conf;
4553         struct CtdlMessage *msg;
4554         char buf[SIZ];
4555
4556         strcpy(hold_rm, CC->room.QRname);
4557         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4558                 getroom(&CC->room, hold_rm);
4559                 return NULL;
4560         }
4561
4562
4563         /* We want the last (and probably only) config in this room */
4564         begin_critical_section(S_CONFIG);
4565         config_msgnum = (-1L);
4566         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4567                 CtdlGetSysConfigBackend, NULL);
4568         msgnum = config_msgnum;
4569         end_critical_section(S_CONFIG);
4570
4571         if (msgnum < 0L) {
4572                 conf = NULL;
4573         }
4574         else {
4575                 msg = CtdlFetchMessage(msgnum, 1);
4576                 if (msg != NULL) {
4577                         conf = strdup(msg->cm_fields['M']);
4578                         CtdlFreeMessage(msg);
4579                 }
4580                 else {
4581                         conf = NULL;
4582                 }
4583         }
4584
4585         getroom(&CC->room, hold_rm);
4586
4587         if (conf != NULL) do {
4588                 extract_token(buf, conf, 0, '\n', sizeof buf);
4589                 strcpy(conf, &conf[strlen(buf)+1]);
4590         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4591
4592         return(conf);
4593 }
4594
4595
4596 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4597         CtdlWriteObject(SYSCONFIGROOM, sysconfname, sysconfdata, (strlen(sysconfdata)+1), NULL, 0, 1, 0);
4598 }
4599
4600
4601 /*
4602  * Determine whether a given Internet address belongs to the current user
4603  */
4604 int CtdlIsMe(char *addr, int addr_buf_len)
4605 {
4606         struct recptypes *recp;
4607         int i;
4608
4609         recp = validate_recipients(addr, NULL, 0);
4610         if (recp == NULL) return(0);
4611
4612         if (recp->num_local == 0) {
4613                 free_recipients(recp);
4614                 return(0);
4615         }
4616
4617         for (i=0; i<recp->num_local; ++i) {
4618                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4619                 if (!strcasecmp(addr, CC->user.fullname)) {
4620                         free_recipients(recp);
4621                         return(1);
4622                 }
4623         }
4624
4625         free_recipients(recp);
4626         return(0);
4627 }
4628
4629
4630 /*
4631  * Citadel protocol command to do the same
4632  */
4633 void cmd_isme(char *argbuf) {
4634         char addr[256];
4635
4636         if (CtdlAccessCheck(ac_logged_in)) return;
4637         extract_token(addr, argbuf, 0, '|', sizeof addr);
4638
4639         if (CtdlIsMe(addr, sizeof addr)) {
4640                 cprintf("%d %s\n", CIT_OK, addr);
4641         }
4642         else {
4643                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4644         }
4645
4646 }