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         struct visit vbuf;
 344         long *msglist;
 345         int num_msgs = 0;
 346         char vset[SIZ];
 347         char *is_set;   /* actually an array of booleans */
 348         int num_sets;
 349         int s;
 350         int w = 0;
 351         char setstr[SIZ], lostr[SIZ], histr[SIZ];
 352
 353         /* Don't bother doing *anything* if we were passed a list of zero messages */
 354         if (num_target_msgnums < 1) {
 355                 return;
 356         }
 357
 358         /* If no room was specified, we go with the current room. */
 359         if (!which_room) {
 360                 which_room = &CC->room;
 361         }
 362
 363         /* If no user was specified, we go with the current user. */
 364         if (!which_user) {
 365                 which_user = &CC->user;
 366         }
 367
 368         CtdlLogPrintf(CTDL_DEBUG, "CtdlSetSeen(%d msgs starting with %ld, %s, %d) in <%s>\n",
 369                 num_target_msgnums, target_msgnums[0],
 370                 (target_setting ? "SET" : "CLEAR"),
 371                 which_set,
 372                 which_room->QRname);
 373
 374         /* Learn about the user and room in question */
 375         CtdlGetRelationship(&vbuf, which_user, which_room);
 376
 377         /* Load the message list */
 378         cdbfr = cdb_fetch(CDB_MSGLISTS, &which_room->QRnumber, sizeof(long));
 379         if (cdbfr != NULL) {
 380                 msglist = (long *) cdbfr->ptr;
 381                 cdbfr->ptr = NULL;      /* CtdlSetSeen() now owns this memory */
 382                 num_msgs = cdbfr->len / sizeof(long);
 383                 cdb_free(cdbfr);
 384         } else {
 385                 return; /* No messages at all?  No further action. */
 386         }
 387
 388         is_set = malloc(num_msgs * sizeof(char));
 389         memset(is_set, 0, (num_msgs * sizeof(char)) );
 390
 391         /* Decide which message set we're manipulating */
 392         switch(which_set) {
 393                 case ctdlsetseen_seen:
 394                         safestrncpy(vset, vbuf.v_seen, sizeof vset);
 395                         break;
 396                 case ctdlsetseen_answered:
 397                         safestrncpy(vset, vbuf.v_answered, sizeof vset);
 398                         break;
 399         }
 400
 401
 402 #if 0   /* This is a special diagnostic section.  Do not allow it to run during normal operation. */
 403         CtdlLogPrintf(CTDL_DEBUG, "There are %d messages in the room.\n", num_msgs);
 404         for (i=0; i<num_msgs; ++i) {
 405                 if (i > 0) if (msglist[i] <= msglist[i-1]) abort();
 406         }
 407         CtdlLogPrintf(CTDL_DEBUG, "We are twiddling %d of them.\n", num_target_msgnums);
 408         for (k=0; k<num_target_msgnums; ++k) {
 409                 if (k > 0) if (target_msgnums[k] <= target_msgnums[k-1]) abort();
 410         }
 411 #endif
 412
 413         CtdlLogPrintf(CTDL_DEBUG, "before update: %s\n", vset);
 414
 415         /* Translate the existing sequence set into an array of booleans */
 416         num_sets = num_tokens(vset, ',');
 417         for (s=0; s<num_sets; ++s) {
 418                 extract_token(setstr, vset, s, ',', sizeof setstr);
 419
 420                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 421                 if (num_tokens(setstr, ':') >= 2) {
 422                         extract_token(histr, setstr, 1, ':', sizeof histr);
 423                 }
 424                 else {
 425                         strcpy(histr, lostr);
 426                 }
 427                 lo = atol(lostr);
 428                 if (!strcmp(histr, "*")) {
 429                         hi = LONG_MAX;
 430                 }
 431                 else {
 432                         hi = atol(histr);
 433                 }
 434
 435                 for (i = 0; i < num_msgs; ++i) {
 436                         if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
 437                                 is_set[i] = 1;
 438                         }
 439                 }
 440         }
 441
 442
 443         /* Now translate the array of booleans back into a sequence set */
 444         strcpy(vset, "");
 445         was_seen = 0;
 446         lo = (-1);
 447         hi = (-1);
 448
 449         for (i=0; i<num_msgs; ++i) {
 450                 is_seen = is_set[i];
 451
 452                 /* Apply changes */
 453                 for (k=0; k<num_target_msgnums; ++k) {
 454                         if (msglist[i] == target_msgnums[k]) {
 455                                 is_seen = target_setting;
 456                         }
 457                 }
 458
 459                 w = 0;  /* set to 1 if we write something to the string */
 460
 461                 if ((was_seen == 0) && (is_seen == 1)) {
 462                         lo = msglist[i];
 463                 }
 464                 else if ((was_seen == 1) && (is_seen == 0)) {
 465                         hi = msglist[i-1];
 466                         w = 1;
 467
 468                         if (!IsEmptyStr(vset)) {
 469                                 strcat(vset, ",");
 470                         }
 471                         if (lo == hi) {
 472                                 sprintf(&vset[strlen(vset)], "%ld", hi);
 473                         }
 474                         else {
 475                                 sprintf(&vset[strlen(vset)], "%ld:%ld", lo, hi);
 476                         }
 477                 }
 478                 else if ((is_seen) && (i == num_msgs - 1)) {
 479                         w = 1;
 480                         if (!IsEmptyStr(vset)) {
 481                                 strcat(vset, ",");
 482                         }
 483                         if ((i==0) || (was_seen == 0)) {
 484                                 sprintf(&vset[strlen(vset)], "%ld", msglist[i]);
 485                         }
 486                         else {
 487                                 sprintf(&vset[strlen(vset)], "%ld:%ld", lo, msglist[i]);
 488                         }
 489                 }
 490
 491                 /* If the string is getting too long, truncate it at the beginning; repeat up to 9 times */
 492                 if (w) for (j=0; j<9; ++j) {
 493                         if ((strlen(vset) + 20) > sizeof vset) {
 494                                 remove_token(vset, 0, ',');
 495                                 if (which_set == ctdlsetseen_seen) {
 496                                         char temp[SIZ];
 497                                         sprintf(temp, "1:%ld,", atol(vset)-1L);
 498                                         strcat(temp, vset);
 499                                         strcpy(vset, temp);
 500                                 }
 501                         }
 502                 }
 503
 504                 was_seen = is_seen;
 505         }
 506
 507         CtdlLogPrintf(CTDL_DEBUG, " after update: %s\n", vset);
 508
 509         /* Decide which message set we're manipulating */
 510         switch (which_set) {
 511                 case ctdlsetseen_seen:
 512                         safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
 513                         break;
 514                 case ctdlsetseen_answered:
 515                         safestrncpy(vbuf.v_answered, vset, sizeof vbuf.v_answered);
 516                         break;
 517         }
 518
 519         free(is_set);
 520         free(msglist);
 521         CtdlSetRelationship(&vbuf, which_user, which_room);
 522 }
 523
 524
 525 /*
 526  * API function to perform an operation for each qualifying message in the
 527  * current room.  (Returns the number of messages processed.)
 528  */
 529 int CtdlForEachMessage(int mode, long ref, char *search_string,
 530                         char *content_type,
 531                         struct CtdlMessage *compare,
 532                         void (*CallBack) (long, void *),
 533                         void *userdata)
 534 {
 535
 536         int a, i, j;
 537         struct visit vbuf;
 538         struct cdbdata *cdbfr;
 539         long *msglist = NULL;
 540         int num_msgs = 0;
 541         int num_processed = 0;
 542         long thismsg;
 543         struct MetaData smi;
 544         struct CtdlMessage *msg = NULL;
 545         int is_seen = 0;
 546         long lastold = 0L;
 547         int printed_lastold = 0;
 548         int num_search_msgs = 0;
 549         long *search_msgs = NULL;
 550         regex_t re;
 551         int need_to_free_re = 0;
 552         regmatch_t pm;
 553
 554         if (content_type) if (!IsEmptyStr(content_type)) {
 555                 regcomp(&re, content_type, 0);
 556                 need_to_free_re = 1;
 557         }
 558
 559         /* Learn about the user and room in question */
 560         getuser(&CC->user, CC->curr_user);
 561         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 562
 563         /* Load the message list */
 564         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 565         if (cdbfr != NULL) {
 566                 msglist = (long *) cdbfr->ptr;
 567                 num_msgs = cdbfr->len / sizeof(long);
 568         } else {
 569                 if (need_to_free_re) regfree(&re);
 570                 return 0;       /* No messages at all?  No further action. */
 571         }
 572
 573
 574         /*
 575          * Now begin the traversal.
 576          */
 577         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
 578
 579                 /* If the caller is looking for a specific MIME type, filter
 580                  * out all messages which are not of the type requested.
 581                  */
 582                 if (content_type != NULL) if (!IsEmptyStr(content_type)) {
 583
 584                         /* This call to GetMetaData() sits inside this loop
 585                          * so that we only do the extra database read per msg
 586                          * if we need to.  Doing the extra read all the time
 587                          * really kills the server.  If we ever need to use
 588                          * metadata for another search criterion, we need to
 589                          * move the read somewhere else -- but still be smart
 590                          * enough to only do the read if the caller has
 591                          * specified something that will need it.
 592                          */
 593                         GetMetaData(&smi, msglist[a]);
 594
 595                         /* if (strcasecmp(smi.meta_content_type, content_type)) { old non-regex way */
 596                         if (regexec(&re, smi.meta_content_type, 1, &pm, 0) != 0) {
 597                                 msglist[a] = 0L;
 598                         }
 599                 }
 600         }
 601
 602         num_msgs = sort_msglist(msglist, num_msgs);
 603
 604         /* If a template was supplied, filter out the messages which
 605          * don't match.  (This could induce some delays!)
 606          */
 607         if (num_msgs > 0) {
 608                 if (compare != NULL) {
 609                         for (a = 0; a < num_msgs; ++a) {
 610                                 msg = CtdlFetchMessage(msglist[a], 1);
 611                                 if (msg != NULL) {
 612                                         if (CtdlMsgCmp(msg, compare)) {
 613                                                 msglist[a] = 0L;
 614                                         }
 615                                         CtdlFreeMessage(msg);
 616                                 }
 617                         }
 618                 }
 619         }
 620
 621         /* If a search string was specified, get a message list from
 622          * the full text index and remove messages which aren't on both
 623          * lists.
 624          *
 625          * How this works:
 626          * Since the lists are sorted and strictly ascending, and the
 627          * output list is guaranteed to be shorter than or equal to the
 628          * input list, we overwrite the bottom of the input list.  This
 629          * eliminates the need to memmove big chunks of the list over and
 630          * over again.
 631          */
 632         if ( (num_msgs > 0) && (mode == MSGS_SEARCH) && (search_string) ) {
 633
 634                 /* Call search module via hook mechanism.
 635                  * NULL means use any search function available.
 636                  * otherwise replace with a char * to name of search routine
 637                  */
 638                 CtdlModuleDoSearch(&num_search_msgs, &search_msgs, search_string, "fulltext");
 639
 640                 if (num_search_msgs > 0) {
 641
 642                         int orig_num_msgs;
 643
 644                         orig_num_msgs = num_msgs;
 645                         num_msgs = 0;
 646                         for (i=0; i<orig_num_msgs; ++i) {
 647                                 for (j=0; j<num_search_msgs; ++j) {
 648                                         if (msglist[i] == search_msgs[j]) {
 649                                                 msglist[num_msgs++] = msglist[i];
 650                                         }
 651                                 }
 652                         }
 653                 }
 654                 else {
 655                         num_msgs = 0;   /* No messages qualify */
 656                 }
 657                 if (search_msgs != NULL) free(search_msgs);
 658
 659                 /* Now that we've purged messages which don't contain the search
 660                  * string, treat a MSGS_SEARCH just like a MSGS_ALL from this
 661                  * point on.
 662                  */
 663                 mode = MSGS_ALL;
 664         }
 665
 666         /*
 667          * Now iterate through the message list, according to the
 668          * criteria supplied by the caller.
 669          */
 670         if (num_msgs > 0)
 671                 for (a = 0; a < num_msgs; ++a) {
 672                         thismsg = msglist[a];
 673                         if (mode == MSGS_ALL) {
 674                                 is_seen = 0;
 675                         }
 676                         else {
 677                                 is_seen = is_msg_in_sequence_set(
 678                                                         vbuf.v_seen, thismsg);
 679                                 if (is_seen) lastold = thismsg;
 680                         }
 681                         if ((thismsg > 0L)
 682                             && (
 683
 684                                        (mode == MSGS_ALL)
 685                                        || ((mode == MSGS_OLD) && (is_seen))
 686                                        || ((mode == MSGS_NEW) && (!is_seen))
 687                                        || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
 688                                    || ((mode == MSGS_FIRST) && (a < ref))
 689                                 || ((mode == MSGS_GT) && (thismsg > ref))
 690                                 || ((mode == MSGS_EQ) && (thismsg == ref))
 691                             )
 692                             ) {
 693                                 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
 694                                         if (CallBack)
 695                                                 CallBack(lastold, userdata);
 696                                         printed_lastold = 1;
 697                                         ++num_processed;
 698                                 }
 699                                 if (CallBack) CallBack(thismsg, userdata);
 700                                 ++num_processed;
 701                         }
 702                 }
 703         cdb_free(cdbfr);        /* Clean up */
 704         if (need_to_free_re) regfree(&re);
 705         return num_processed;
 706 }
 707
 708
 709
 710 /*
 711  * cmd_msgs()  -  get list of message #'s in this room
 712  *              implements the MSGS server command using CtdlForEachMessage()
 713  */
 714 void cmd_msgs(char *cmdbuf)
 715 {
 716         int mode = 0;
 717         char which[16];
 718         char buf[256];
 719         char tfield[256];
 720         char tvalue[256];
 721         int cm_ref = 0;
 722         int i;
 723         int with_template = 0;
 724         struct CtdlMessage *template = NULL;
 725         int with_headers = 0;
 726         char search_string[1024];
 727
 728         extract_token(which, cmdbuf, 0, '|', sizeof which);
 729         cm_ref = extract_int(cmdbuf, 1);
 730         extract_token(search_string, cmdbuf, 1, '|', sizeof search_string);
 731         with_template = extract_int(cmdbuf, 2);
 732         with_headers = extract_int(cmdbuf, 3);
 733
 734         strcat(which, "   ");
 735         if (!strncasecmp(which, "OLD", 3))
 736                 mode = MSGS_OLD;
 737         else if (!strncasecmp(which, "NEW", 3))
 738                 mode = MSGS_NEW;
 739         else if (!strncasecmp(which, "FIRST", 5))
 740                 mode = MSGS_FIRST;
 741         else if (!strncasecmp(which, "LAST", 4))
 742                 mode = MSGS_LAST;
 743         else if (!strncasecmp(which, "GT", 2))
 744                 mode = MSGS_GT;
 745         else if (!strncasecmp(which, "SEARCH", 6))
 746                 mode = MSGS_SEARCH;
 747         else
 748                 mode = MSGS_ALL;
 749
 750         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
 751                 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
 752                 return;
 753         }
 754
 755         if ( (mode == MSGS_SEARCH) && (!config.c_enable_fulltext) ) {
 756                 cprintf("%d Full text index is not enabled on this server.\n",
 757                         ERROR + CMD_NOT_SUPPORTED);
 758                 return;
 759         }
 760
 761         if (with_template) {
 762                 unbuffer_output();
 763                 cprintf("%d Send template then receive message list\n",
 764                         START_CHAT_MODE);
 765                 template = (struct CtdlMessage *)
 766                         malloc(sizeof(struct CtdlMessage));
 767                 memset(template, 0, sizeof(struct CtdlMessage));
 768                 template->cm_magic = CTDLMESSAGE_MAGIC;
 769                 template->cm_anon_type = MES_NORMAL;
 770
 771                 while(client_getln(buf, sizeof buf) >= 0 && strcmp(buf,"000")) {
 772                         extract_token(tfield, buf, 0, '|', sizeof tfield);
 773                         extract_token(tvalue, buf, 1, '|', sizeof tvalue);
 774                         for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
 775                                 if (!strcasecmp(tfield, msgkeys[i])) {
 776                                         template->cm_fields[i] =
 777                                                 strdup(tvalue);
 778                                 }
 779                         }
 780                 }
 781                 buffer_output();
 782         }
 783         else {
 784                 cprintf("%d  \n", LISTING_FOLLOWS);
 785         }
 786
 787         CtdlForEachMessage(mode,
 788                         ( (mode == MSGS_SEARCH) ? 0 : cm_ref ),
 789                         ( (mode == MSGS_SEARCH) ? search_string : NULL ),
 790                         NULL,
 791                         template,
 792                         (with_headers ? headers_listing : simple_listing),
 793                         NULL
 794         );
 795         if (template != NULL) CtdlFreeMessage(template);
 796         cprintf("000\n");
 797 }
 798
 799
 800
 801
 802 /*
 803  * help_subst()  -  support routine for help file viewer
 804  */
 805 void help_subst(char *strbuf, char *source, char *dest)
 806 {
 807         char workbuf[SIZ];
 808         int p;
 809
 810         while (p = pattern2(strbuf, source), (p >= 0)) {
 811                 strcpy(workbuf, &strbuf[p + strlen(source)]);
 812                 strcpy(&strbuf[p], dest);
 813                 strcat(strbuf, workbuf);
 814         }
 815 }
 816
 817
 818 void do_help_subst(char *buffer)
 819 {
 820         char buf2[16];
 821
 822         help_subst(buffer, "^nodename", config.c_nodename);
 823         help_subst(buffer, "^humannode", config.c_humannode);
 824         help_subst(buffer, "^fqdn", config.c_fqdn);
 825         help_subst(buffer, "^username", CC->user.fullname);
 826         snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
 827         help_subst(buffer, "^usernum", buf2);
 828         help_subst(buffer, "^sysadm", config.c_sysadm);
 829         help_subst(buffer, "^variantname", CITADEL);
 830         snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
 831         help_subst(buffer, "^maxsessions", buf2);
 832         help_subst(buffer, "^bbsdir", ctdl_message_dir);
 833 }
 834
 835
 836
 837 /*
 838  * memfmout()  -  Citadel text formatter and paginator.
 839  *           Although the original purpose of this routine was to format
 840  *           text to the reader's screen width, all we're really using it
 841  *           for here is to format text out to 80 columns before sending it
 842  *           to the client.  The client software may reformat it again.
 843  */
 844 void memfmout(
 845         char *mptr,             /* where are we going to get our text from? */
 846         char subst,             /* nonzero if we should do substitutions */
 847         char *nl)               /* string to terminate lines with */
 848 {
 849         int a, b, c;
 850         int real = 0;
 851         int old = 0;
 852         cit_uint8_t ch;
 853         char aaa[140];
 854         char buffer[SIZ];
 855         static int width = 80;
 856
 857         strcpy(aaa, "");
 858         old = 255;
 859         strcpy(buffer, "");
 860         c = 1;                  /* c is the current pos */
 861
 862         do {
 863                 if (subst) {
 864                         while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
 865                                 ch = *mptr++;
 866                                 buffer[strlen(buffer) + 1] = 0;
 867                                 buffer[strlen(buffer)] = ch;
 868                         }
 869
 870                         if (buffer[0] == '^')
 871                                 do_help_subst(buffer);
 872
 873                         buffer[strlen(buffer) + 1] = 0;
 874                         a = buffer[0];
 875                         strcpy(buffer, &buffer[1]);
 876                 } else {
 877                         ch = *mptr++;
 878                 }
 879
 880                 old = real;
 881                 real = ch;
 882
 883                 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10)) {
 884                         ch = 32;
 885                 }
 886                 if (((old == 13) || (old == 10)) && (isspace(real))) {
 887                         cprintf("%s", nl);
 888                         c = 1;
 889                 }
 890                 if (ch > 32) {
 891                         if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
 892                                 cprintf("%s%s", nl, aaa);
 893                                 c = strlen(aaa);
 894                                 aaa[0] = 0;
 895                         }
 896                         b = strlen(aaa);
 897                         aaa[b] = ch;
 898                         aaa[b + 1] = 0;
 899                 }
 900                 if (ch == 32) {
 901                         if ((strlen(aaa) + c) > (width - 5)) {
 902                                 cprintf("%s", nl);
 903                                 c = 1;
 904                         }
 905                         cprintf("%s ", aaa);
 906                         ++c;
 907                         c = c + strlen(aaa);
 908                         strcpy(aaa, "");
 909                 }
 910                 if ((ch == 13) || (ch == 10)) {
 911                         cprintf("%s%s", aaa, nl);
 912                         c = 1;
 913                         strcpy(aaa, "");
 914                 }
 915
 916         } while (ch > 0);
 917
 918         cprintf("%s%s", aaa, nl);
 919 }
 920
 921
 922
 923 /*
 924  * Callback function for mime parser that simply lists the part
 925  */
 926 void list_this_part(char *name, char *filename, char *partnum, char *disp,
 927                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 928                     void *cbuserdata)
 929 {
 930         struct ma_info *ma;
 931
 932         ma = (struct ma_info *)cbuserdata;
 933         if (ma->is_ma == 0) {
 934                 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
 935                         name, filename, partnum, disp, cbtype, (long)length);
 936         }
 937 }
 938
 939 /*
 940  * Callback function for multipart prefix
 941  */
 942 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
 943                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 944                     void *cbuserdata)
 945 {
 946         struct ma_info *ma;
 947
 948         ma = (struct ma_info *)cbuserdata;
 949         if (!strcasecmp(cbtype, "multipart/alternative")) {
 950                 ++ma->is_ma;
 951         }
 952
 953         if (ma->is_ma == 0) {
 954                 cprintf("pref=%s|%s\n", partnum, cbtype);
 955         }
 956 }
 957
 958 /*
 959  * Callback function for multipart sufffix
 960  */
 961 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
 962                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 963                     void *cbuserdata)
 964 {
 965         struct ma_info *ma;
 966
 967         ma = (struct ma_info *)cbuserdata;
 968         if (ma->is_ma == 0) {
 969                 cprintf("suff=%s|%s\n", partnum, cbtype);
 970         }
 971         if (!strcasecmp(cbtype, "multipart/alternative")) {
 972                 --ma->is_ma;
 973         }
 974 }
 975
 976
 977 /*
 978  * Callback function for mime parser that opens a section for downloading
 979  */
 980 void mime_download(char *name, char *filename, char *partnum, char *disp,
 981                    void *content, char *cbtype, char *cbcharset, size_t length,
 982                    char *encoding, void *cbuserdata)
 983 {
 984
 985         /* Silently go away if there's already a download open... */
 986         if (CC->download_fp != NULL)
 987                 return;
 988
 989         /* ...or if this is not the desired section */
 990         if (strcasecmp(CC->download_desired_section, partnum))
 991                 return;
 992
 993         CC->download_fp = tmpfile();
 994         if (CC->download_fp == NULL)
 995                 return;
 996
 997         fwrite(content, length, 1, CC->download_fp);
 998         fflush(CC->download_fp);
 999         rewind(CC->download_fp);
1000
1001         OpenCmdResult(filename, cbtype);
1002 }
1003
1004
1005
1006 /*
1007  * Callback function for mime parser that outputs a section all at once
1008  */
1009 void mime_spew_section(char *name, char *filename, char *partnum, char *disp,
1010                    void *content, char *cbtype, char *cbcharset, size_t length,
1011                    char *encoding, void *cbuserdata)
1012 {
1013         int *found_it = (int *)cbuserdata;
1014
1015         /* ...or if this is not the desired section */
1016         if (strcasecmp(CC->download_desired_section, partnum))
1017                 return;
1018
1019         *found_it = 1;
1020
1021         cprintf("%d %d\n", BINARY_FOLLOWS, (int)length);
1022         client_write(content, length);
1023 }
1024
1025
1026
1027 /*
1028  * Load a message from disk into memory.
1029  * This is used by CtdlOutputMsg() and other fetch functions.
1030  *
1031  * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
1032  *       using the CtdlMessageFree() function.
1033  */
1034 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
1035 {
1036         struct cdbdata *dmsgtext;
1037         struct CtdlMessage *ret = NULL;
1038         char *mptr;
1039         char *upper_bound;
1040         cit_uint8_t ch;
1041         cit_uint8_t field_header;
1042
1043         CtdlLogPrintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
1044
1045         dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
1046         if (dmsgtext == NULL) {
1047                 return NULL;
1048         }
1049         mptr = dmsgtext->ptr;
1050         upper_bound = mptr + dmsgtext->len;
1051
1052         /* Parse the three bytes that begin EVERY message on disk.
1053          * The first is always 0xFF, the on-disk magic number.
1054          * The second is the anonymous/public type byte.
1055          * The third is the format type byte (vari, fixed, or MIME).
1056          */
1057         ch = *mptr++;
1058         if (ch != 255) {
1059                 CtdlLogPrintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
1060                 cdb_free(dmsgtext);
1061                 return NULL;
1062         }
1063         ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1064         memset(ret, 0, sizeof(struct CtdlMessage));
1065
1066         ret->cm_magic = CTDLMESSAGE_MAGIC;
1067         ret->cm_anon_type = *mptr++;    /* Anon type byte */
1068         ret->cm_format_type = *mptr++;  /* Format type byte */
1069
1070         /*
1071          * The rest is zero or more arbitrary fields.  Load them in.
1072          * We're done when we encounter either a zero-length field or
1073          * have just processed the 'M' (message text) field.
1074          */
1075         do {
1076                 if (mptr >= upper_bound) {
1077                         break;
1078                 }
1079                 field_header = *mptr++;
1080                 ret->cm_fields[field_header] = strdup(mptr);
1081
1082                 while (*mptr++ != 0);   /* advance to next field */
1083
1084         } while ((mptr < upper_bound) && (field_header != 'M'));
1085
1086         cdb_free(dmsgtext);
1087
1088         /* Always make sure there's something in the msg text field.  If
1089          * it's NULL, the message text is most likely stored separately,
1090          * so go ahead and fetch that.  Failing that, just set a dummy
1091          * body so other code doesn't barf.
1092          */
1093         if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
1094                 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
1095                 if (dmsgtext != NULL) {
1096                         ret->cm_fields['M'] = strdup(dmsgtext->ptr);
1097                         cdb_free(dmsgtext);
1098                 }
1099         }
1100         if (ret->cm_fields['M'] == NULL) {
1101                 ret->cm_fields['M'] = strdup("\r\n\r\n (no text)\r\n");
1102         }
1103
1104         /* Perform "before read" hooks (aborting if any return nonzero) */
1105         if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
1106                 CtdlFreeMessage(ret);
1107                 return NULL;
1108         }
1109
1110         return (ret);
1111 }
1112
1113
1114 /*
1115  * Returns 1 if the supplied pointer points to a valid Citadel message.
1116  * If the pointer is NULL or the magic number check fails, returns 0.
1117  */
1118 int is_valid_message(struct CtdlMessage *msg) {
1119         if (msg == NULL)
1120                 return 0;
1121         if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1122                 CtdlLogPrintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1123                 return 0;
1124         }
1125         return 1;
1126 }
1127
1128
1129 /*
1130  * 'Destructor' for struct CtdlMessage
1131  */
1132 void CtdlFreeMessage(struct CtdlMessage *msg)
1133 {
1134         int i;
1135
1136         if (is_valid_message(msg) == 0)
1137         {
1138                 if (msg != NULL) free (msg);
1139                 return;
1140         }
1141
1142         for (i = 0; i < 256; ++i)
1143                 if (msg->cm_fields[i] != NULL) {
1144                         free(msg->cm_fields[i]);
1145                 }
1146
1147         msg->cm_magic = 0;      /* just in case */
1148         free(msg);
1149 }
1150
1151
1152 /*
1153  * Pre callback function for multipart/alternative
1154  *
1155  * NOTE: this differs from the standard behavior for a reason.  Normally when
1156  *       displaying multipart/alternative you want to show the _last_ usable
1157  *       format in the message.  Here we show the _first_ one, because it's
1158  *       usually text/plain.  Since this set of functions is designed for text
1159  *       output to non-MIME-aware clients, this is the desired behavior.
1160  *
1161  */
1162 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1163                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1164                 void *cbuserdata)
1165 {
1166         struct ma_info *ma;
1167
1168         ma = (struct ma_info *)cbuserdata;
1169         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
1170         if (!strcasecmp(cbtype, "multipart/alternative")) {
1171                 ++ma->is_ma;
1172                 ma->did_print = 0;
1173         }
1174         if (!strcasecmp(cbtype, "message/rfc822")) {
1175                 ++ma->freeze;
1176         }
1177 }
1178
1179 /*
1180  * Post callback function for multipart/alternative
1181  */
1182 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1183                 void *content, char *cbtype, char *cbcharset, size_t length,
1184                 char *encoding, void *cbuserdata)
1185 {
1186         struct ma_info *ma;
1187
1188         ma = (struct ma_info *)cbuserdata;
1189         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
1190         if (!strcasecmp(cbtype, "multipart/alternative")) {
1191                 --ma->is_ma;
1192                 ma->did_print = 0;
1193         }
1194         if (!strcasecmp(cbtype, "message/rfc822")) {
1195                 --ma->freeze;
1196         }
1197 }
1198
1199 /*
1200  * Inline callback function for mime parser that wants to display text
1201  */
1202 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1203                 void *content, char *cbtype, char *cbcharset, size_t length,
1204                 char *encoding, void *cbuserdata)
1205 {
1206         char *ptr;
1207         char *wptr;
1208         size_t wlen;
1209         struct ma_info *ma;
1210
1211         ma = (struct ma_info *)cbuserdata;
1212
1213         CtdlLogPrintf(CTDL_DEBUG,
1214                 "fixed_output() part %s: %s (%s) (%ld bytes)\n",
1215                 partnum, filename, cbtype, (long)length);
1216
1217         /*
1218          * If we're in the middle of a multipart/alternative scope and
1219          * we've already printed another section, skip this one.
1220          */
1221         if ( (ma->is_ma) && (ma->did_print) ) {
1222                 CtdlLogPrintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1223                 return;
1224         }
1225         ma->did_print = 1;
1226
1227         if ( (!strcasecmp(cbtype, "text/plain"))
1228            || (IsEmptyStr(cbtype)) ) {
1229                 wptr = content;
1230                 if (length > 0) {
1231                         client_write(wptr, length);
1232                         if (wptr[length-1] != '\n') {
1233                                 cprintf("\n");
1234                         }
1235                 }
1236                 return;
1237         }
1238
1239         if (!strcasecmp(cbtype, "text/html")) {
1240                 ptr = html_to_ascii(content, length, 80, 0);
1241                 wlen = strlen(ptr);
1242                 client_write(ptr, wlen);
1243                 if (ptr[wlen-1] != '\n') {
1244                         cprintf("\n");
1245                 }
1246                 free(ptr);
1247                 return;
1248         }
1249
1250         if (ma->use_fo_hooks) {
1251                 if (PerformFixedOutputHooks(cbtype, content, length)) {
1252                 /* above function returns nonzero if it handled the part */
1253                         return;
1254                 }
1255         }
1256
1257         if (strncasecmp(cbtype, "multipart/", 10)) {
1258                 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1259                         partnum, filename, cbtype, (long)length);
1260                 return;
1261         }
1262 }
1263
1264 /*
1265  * The client is elegant and sophisticated and wants to be choosy about
1266  * MIME content types, so figure out which multipart/alternative part
1267  * we're going to send.
1268  *
1269  * We use a system of weights.  When we find a part that matches one of the
1270  * MIME types we've declared as preferential, we can store it in ma->chosen_part
1271  * and then set ma->chosen_pref to that MIME type's position in our preference
1272  * list.  If we then hit another match, we only replace the first match if
1273  * the preference value is lower.
1274  */
1275 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1276                 void *content, char *cbtype, char *cbcharset, size_t length,
1277                 char *encoding, void *cbuserdata)
1278 {
1279         char buf[1024];
1280         int i;
1281         struct ma_info *ma;
1282
1283         ma = (struct ma_info *)cbuserdata;
1284
1285         // NOTE: REMOVING THIS CONDITIONAL FIXES BUG 220
1286         //       http://bugzilla.citadel.org/show_bug.cgi?id=220
1287         // I don't know if there are any side effects!  Please TEST TEST TEST
1288         //if (ma->is_ma > 0) {
1289
1290         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1291                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1292                 if ( (!strcasecmp(buf, cbtype)) && (!ma->freeze) ) {
1293                         if (i < ma->chosen_pref) {
1294                                 CtdlLogPrintf(CTDL_DEBUG, "Setting chosen part: <%s>\n", partnum);
1295                                 safestrncpy(ma->chosen_part, partnum, sizeof ma->chosen_part);
1296                                 ma->chosen_pref = i;
1297                         }
1298                 }
1299         }
1300 }
1301
1302 /*
1303  * Now that we've chosen our preferred part, output it.
1304  */
1305 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1306                 void *content, char *cbtype, char *cbcharset, size_t length,
1307                 char *encoding, void *cbuserdata)
1308 {
1309         int i;
1310         char buf[128];
1311         int add_newline = 0;
1312         char *text_content;
1313         struct ma_info *ma;
1314
1315         ma = (struct ma_info *)cbuserdata;
1316
1317         /* This is not the MIME part you're looking for... */
1318         if (strcasecmp(partnum, ma->chosen_part)) return;
1319
1320         /* If the content-type of this part is in our preferred formats
1321          * list, we can simply output it verbatim.
1322          */
1323         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1324                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1325                 if (!strcasecmp(buf, cbtype)) {
1326                         /* Yeah!  Go!  W00t!! */
1327
1328                         text_content = (char *)content;
1329                         if (text_content[length-1] != '\n') {
1330                                 ++add_newline;
1331                         }
1332                         cprintf("Content-type: %s", cbtype);
1333                         if (!IsEmptyStr(cbcharset)) {
1334                                 cprintf("; charset=%s", cbcharset);
1335                         }
1336                         cprintf("\nContent-length: %d\n",
1337                                 (int)(length + add_newline) );
1338                         if (!IsEmptyStr(encoding)) {
1339                                 cprintf("Content-transfer-encoding: %s\n", encoding);
1340                         }
1341                         else {
1342                                 cprintf("Content-transfer-encoding: 7bit\n");
1343                         }
1344                         cprintf("X-Citadel-MSG4-Partnum: %s\n", partnum);
1345                         cprintf("\n");
1346                         client_write(content, length);
1347                         if (add_newline) cprintf("\n");
1348                         return;
1349                 }
1350         }
1351
1352         /* No translations required or possible: output as text/plain */
1353         cprintf("Content-type: text/plain\n\n");
1354         fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1355                         length, encoding, cbuserdata);
1356 }
1357
1358
1359 struct encapmsg {
1360         char desired_section[64];
1361         char *msg;
1362         size_t msglen;
1363 };
1364
1365
1366 /*
1367  * Callback function for
1368  */
1369 void extract_encapsulated_message(char *name, char *filename, char *partnum, char *disp,
1370                    void *content, char *cbtype, char *cbcharset, size_t length,
1371                    char *encoding, void *cbuserdata)
1372 {
1373         struct encapmsg *encap;
1374
1375         encap = (struct encapmsg *)cbuserdata;
1376
1377         /* Only proceed if this is the desired section... */
1378         if (!strcasecmp(encap->desired_section, partnum)) {
1379                 encap->msglen = length;
1380                 encap->msg = malloc(length + 2);
1381                 memcpy(encap->msg, content, length);
1382                 return;
1383         }
1384
1385 }
1386
1387
1388
1389
1390 /*
1391  * Get a message off disk.  (returns om_* values found in msgbase.h)
1392  *
1393  */
1394 int CtdlOutputMsg(long msg_num,         /* message number (local) to fetch */
1395                   int mode,             /* how would you like that message? */
1396                   int headers_only,     /* eschew the message body? */
1397                   int do_proto,         /* do Citadel protocol responses? */
1398                   int crlf,             /* Use CRLF newlines instead of LF? */
1399                   char *section,        /* NULL or a message/rfc822 section */
1400                   int flags             /* should the bessage be exported clean? */
1401 ) {
1402         struct CtdlMessage *TheMessage = NULL;
1403         int retcode = om_no_such_msg;
1404         struct encapmsg encap;
1405
1406         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n",
1407                 msg_num, mode,
1408                 (section ? section : "<>")
1409         );
1410
1411         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1412                 if (do_proto) cprintf("%d Not logged in.\n",
1413                         ERROR + NOT_LOGGED_IN);
1414                 return(om_not_logged_in);
1415         }
1416
1417         /* FIXME: check message id against msglist for this room */
1418
1419         /*
1420          * Fetch the message from disk.  If we're in any sort of headers
1421          * only mode, request that we don't even bother loading the body
1422          * into memory.
1423          */
1424         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1425                 TheMessage = CtdlFetchMessage(msg_num, 0);
1426         }
1427         else {
1428                 TheMessage = CtdlFetchMessage(msg_num, 1);
1429         }
1430
1431         if (TheMessage == NULL) {
1432                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1433                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1434                 return(om_no_such_msg);
1435         }
1436
1437         /* Here is the weird form of this command, to process only an
1438          * encapsulated message/rfc822 section.
1439          */
1440         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1441                 memset(&encap, 0, sizeof encap);
1442                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1443                 mime_parser(TheMessage->cm_fields['M'],
1444                         NULL,
1445                         *extract_encapsulated_message,
1446                         NULL, NULL, (void *)&encap, 0
1447                 );
1448                 CtdlFreeMessage(TheMessage);
1449                 TheMessage = NULL;
1450
1451                 if (encap.msg) {
1452                         encap.msg[encap.msglen] = 0;
1453                         TheMessage = convert_internet_message(encap.msg);
1454                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1455
1456                         /* Now we let it fall through to the bottom of this
1457                          * function, because TheMessage now contains the
1458                          * encapsulated message instead of the top-level
1459                          * message.  Isn't that neat?
1460                          */
1461
1462                 }
1463                 else {
1464                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1465                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1466                         retcode = om_no_such_msg;
1467                 }
1468
1469         }
1470
1471         /* Ok, output the message now */
1472         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf, flags);
1473         CtdlFreeMessage(TheMessage);
1474
1475         return(retcode);
1476 }
1477
1478
1479 char *qp_encode_email_addrs(char *source)
1480 {
1481         char user[256], node[256], name[256];
1482         const char headerStr[] = "=?UTF-8?Q?";
1483         char *Encoded;
1484         char *EncodedName;
1485         char *nPtr;
1486         int need_to_encode = 0;
1487         long SourceLen;
1488         long EncodedMaxLen;
1489         long nColons = 0;
1490         long *AddrPtr;
1491         long *AddrUtf8;
1492         long nAddrPtrMax = 50;
1493         long nmax;
1494         int InQuotes = 0;
1495         int i, n;
1496
1497         if (source == NULL) return source;
1498         if (IsEmptyStr(source)) return source;
1499
1500         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1501         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1502         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1503         *AddrPtr = 0;
1504         i = 0;
1505         while (!IsEmptyStr (&source[i])) {
1506                 if (nColons >= nAddrPtrMax){
1507                         long *ptr;
1508
1509                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1510                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1511                         free (AddrPtr), AddrPtr = ptr;
1512
1513                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1514                         memset(&ptr[nAddrPtrMax], 0,
1515                                sizeof (long) * nAddrPtrMax);
1516
1517                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1518                         free (AddrUtf8), AddrUtf8 = ptr;
1519                         nAddrPtrMax *= 2;
1520                 }
1521                 if (((unsigned char) source[i] < 32) ||
1522                     ((unsigned char) source[i] > 126)) {
1523                         need_to_encode = 1;
1524                         AddrUtf8[nColons] = 1;
1525                 }
1526                 if (source[i] == '"')
1527                         InQuotes = !InQuotes;
1528                 if (!InQuotes && source[i] == ',') {
1529                         AddrPtr[nColons] = i;
1530                         nColons++;
1531                 }
1532                 i++;
1533         }
1534         if (need_to_encode == 0) {
1535                 free(AddrPtr);
1536                 free(AddrUtf8);
1537                 return source;
1538         }
1539
1540         SourceLen = i;
1541         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1542         Encoded = (char*) malloc (EncodedMaxLen);
1543
1544         for (i = 0; i < nColons; i++)
1545                 source[AddrPtr[i]++] = '\0';
1546
1547         nPtr = Encoded;
1548         *nPtr = '\0';
1549         for (i = 0; i < nColons && nPtr != NULL; i++) {
1550                 nmax = EncodedMaxLen - (nPtr - Encoded);
1551                 if (AddrUtf8[i]) {
1552                         process_rfc822_addr(&source[AddrPtr[i]],
1553                                             user,
1554                                             node,
1555                                             name);
1556                         /* TODO: libIDN here ! */
1557                         if (IsEmptyStr(name)) {
1558                                 n = snprintf(nPtr, nmax,
1559                                              (i==0)?"%s@%s" : ",%s@%s",
1560                                              user, node);
1561                         }
1562                         else {
1563                                 EncodedName = rfc2047encode(name, strlen(name));
1564                                 n = snprintf(nPtr, nmax,
1565                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1566                                              EncodedName, user, node);
1567                                 free(EncodedName);
1568                         }
1569                 }
1570                 else {
1571                         n = snprintf(nPtr, nmax,
1572                                      (i==0)?"%s" : ",%s",
1573                                      &source[AddrPtr[i]]);
1574                 }
1575                 if (n > 0 )
1576                         nPtr += n;
1577                 else {
1578                         char *ptr, *nnPtr;
1579                         ptr = (char*) malloc(EncodedMaxLen * 2);
1580                         memcpy(ptr, Encoded, EncodedMaxLen);
1581                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1582                         free(Encoded), Encoded = ptr;
1583                         EncodedMaxLen *= 2;
1584                         i--; /* do it once more with properly lengthened buffer */
1585                 }
1586         }
1587         for (i = 0; i < nColons; i++)
1588                 source[--AddrPtr[i]] = ',';
1589         free(AddrUtf8);
1590         free(AddrPtr);
1591         return Encoded;
1592 }
1593
1594
1595 /*
1596  * Get a message off disk.  (returns om_* values found in msgbase.h)
1597  */
1598 int CtdlOutputPreLoadedMsg(
1599                 struct CtdlMessage *TheMessage,
1600                 int mode,               /* how would you like that message? */
1601                 int headers_only,       /* eschew the message body? */
1602                 int do_proto,           /* do Citadel protocol responses? */
1603                 int crlf,               /* Use CRLF newlines instead of LF? */
1604                 int flags               /* should the bessage be exported clean? */
1605 ) {
1606         int i, j, k;
1607         char buf[SIZ];
1608         cit_uint8_t ch, prev_ch;
1609         char allkeys[30];
1610         char display_name[256];
1611         char *mptr, *mpptr;
1612         char *nl;       /* newline string */
1613         int suppress_f = 0;
1614         int subject_found = 0;
1615         struct ma_info ma;
1616
1617         /* Buffers needed for RFC822 translation.  These are all filled
1618          * using functions that are bounds-checked, and therefore we can
1619          * make them substantially smaller than SIZ.
1620          */
1621         char suser[100];
1622         char luser[100];
1623         char fuser[100];
1624         char snode[100];
1625         char lnode[100];
1626         char mid[100];
1627         char datestamp[100];
1628
1629         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1630                 ((TheMessage == NULL) ? "NULL" : "not null"),
1631                 mode, headers_only, do_proto, crlf);
1632
1633         strcpy(mid, "unknown");
1634         nl = (crlf ? "\r\n" : "\n");
1635
1636         if (!is_valid_message(TheMessage)) {
1637                 CtdlLogPrintf(CTDL_ERR,
1638                         "ERROR: invalid preloaded message for output\n");
1639                 cit_backtrace ();
1640                 return(om_no_such_msg);
1641         }
1642
1643         /* Are we downloading a MIME component? */
1644         if (mode == MT_DOWNLOAD) {
1645                 if (TheMessage->cm_format_type != FMT_RFC822) {
1646                         if (do_proto)
1647                                 cprintf("%d This is not a MIME message.\n",
1648                                 ERROR + ILLEGAL_VALUE);
1649                 } else if (CC->download_fp != NULL) {
1650                         if (do_proto) cprintf(
1651                                 "%d You already have a download open.\n",
1652                                 ERROR + RESOURCE_BUSY);
1653                 } else {
1654                         /* Parse the message text component */
1655                         mptr = TheMessage->cm_fields['M'];
1656                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1657                         /* If there's no file open by this time, the requested
1658                          * section wasn't found, so print an error
1659                          */
1660                         if (CC->download_fp == NULL) {
1661                                 if (do_proto) cprintf(
1662                                         "%d Section %s not found.\n",
1663                                         ERROR + FILE_NOT_FOUND,
1664                                         CC->download_desired_section);
1665                         }
1666                 }
1667                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1668         }
1669
1670         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1671          * in a single server operation instead of opening a download file.
1672          */
1673         if (mode == MT_SPEW_SECTION) {
1674                 if (TheMessage->cm_format_type != FMT_RFC822) {
1675                         if (do_proto)
1676                                 cprintf("%d This is not a MIME message.\n",
1677                                 ERROR + ILLEGAL_VALUE);
1678                 } else {
1679                         /* Parse the message text component */
1680                         int found_it = 0;
1681
1682                         mptr = TheMessage->cm_fields['M'];
1683                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1684                         /* If section wasn't found, print an error
1685                          */
1686                         if (!found_it) {
1687                                 if (do_proto) cprintf(
1688                                         "%d Section %s not found.\n",
1689                                         ERROR + FILE_NOT_FOUND,
1690                                         CC->download_desired_section);
1691                         }
1692                 }
1693                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1694         }
1695
1696         /* now for the user-mode message reading loops */
1697         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1698
1699         /* Does the caller want to skip the headers? */
1700         if (headers_only == HEADERS_NONE) goto START_TEXT;
1701
1702         /* Tell the client which format type we're using. */
1703         if ( (mode == MT_CITADEL) && (do_proto) ) {
1704                 cprintf("type=%d\n", TheMessage->cm_format_type);
1705         }
1706
1707         /* nhdr=yes means that we're only displaying headers, no body */
1708         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1709            && (mode == MT_CITADEL)
1710            && (do_proto)
1711            ) {
1712                 cprintf("nhdr=yes\n");
1713         }
1714
1715         /* begin header processing loop for Citadel message format */
1716
1717         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1718
1719                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1720                 if (TheMessage->cm_fields['A']) {
1721                         strcpy(buf, TheMessage->cm_fields['A']);
1722                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1723                                 safestrncpy(display_name, "****", sizeof display_name);
1724                         }
1725                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1726                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1727                         }
1728                         else {
1729                                 safestrncpy(display_name, buf, sizeof display_name);
1730                         }
1731                         if ((is_room_aide())
1732                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1733                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1734                                 size_t tmp = strlen(display_name);
1735                                 snprintf(&display_name[tmp],
1736                                          sizeof display_name - tmp,
1737                                          " [%s]", buf);
1738                         }
1739                 }
1740
1741                 /* Don't show Internet address for users on the
1742                  * local Citadel network.
1743                  */
1744                 suppress_f = 0;
1745                 if (TheMessage->cm_fields['N'] != NULL)
1746                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1747                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1748                         suppress_f = 1;
1749                 }
1750
1751                 /* Now spew the header fields in the order we like them. */
1752                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1753                 for (i=0; i<strlen(allkeys); ++i) {
1754                         k = (int) allkeys[i];
1755                         if (k != 'M') {
1756                                 if ( (TheMessage->cm_fields[k] != NULL)
1757                                    && (msgkeys[k] != NULL) ) {
1758                                         if (k == 'A') {
1759                                                 if (do_proto) cprintf("%s=%s\n",
1760                                                         msgkeys[k],
1761                                                         display_name);
1762                                         }
1763                                         else if ((k == 'F') && (suppress_f)) {
1764                                                 /* do nothing */
1765                                         }
1766                                         /* Masquerade display name if needed */
1767                                         else {
1768                                                 if (do_proto) cprintf("%s=%s\n",
1769                                                         msgkeys[k],
1770                                                         TheMessage->cm_fields[k]
1771                                         );
1772                                         }
1773                                 }
1774                         }
1775                 }
1776
1777         }
1778
1779         /* begin header processing loop for RFC822 transfer format */
1780
1781         strcpy(suser, "");
1782         strcpy(luser, "");
1783         strcpy(fuser, "");
1784         strcpy(snode, NODENAME);
1785         strcpy(lnode, HUMANNODE);
1786         if (mode == MT_RFC822) {
1787                 for (i = 0; i < 256; ++i) {
1788                         if (TheMessage->cm_fields[i]) {
1789                                 mptr = mpptr = TheMessage->cm_fields[i];
1790
1791                                 if (i == 'A') {
1792                                         safestrncpy(luser, mptr, sizeof luser);
1793                                         safestrncpy(suser, mptr, sizeof suser);
1794                                 }
1795                                 else if (i == 'Y') {
1796                                         if ((flags & QP_EADDR) != 0)
1797                                                 mptr = qp_encode_email_addrs(mptr);
1798                                         cprintf("CC: %s%s", mptr, nl);
1799                                 }
1800                                 else if (i == 'P') {
1801                                         cprintf("Return-Path: %s%s", mptr, nl);
1802                                 }
1803                                 else if (i == 'L') {
1804                                         cprintf("List-ID: %s%s", mptr, nl);
1805                                 }
1806                                 else if (i == 'V') {
1807                                         if ((flags & QP_EADDR) != 0)
1808                                                 mptr = qp_encode_email_addrs(mptr);
1809                                         cprintf("Envelope-To: %s%s", mptr, nl);
1810                                 }
1811                                 else if (i == 'U') {
1812                                         cprintf("Subject: %s%s", mptr, nl);
1813                                         subject_found = 1;
1814                                 }
1815                                 else if (i == 'I')
1816                                         safestrncpy(mid, mptr, sizeof mid);
1817                                 else if (i == 'H')
1818                                         safestrncpy(lnode, mptr, sizeof lnode);
1819                                 else if (i == 'F')
1820                                         safestrncpy(fuser, mptr, sizeof fuser);
1821                                 /* else if (i == 'O')
1822                                         cprintf("X-Citadel-Room: %s%s",
1823                                                 mptr, nl); */
1824                                 else if (i == 'N')
1825                                         safestrncpy(snode, mptr, sizeof snode);
1826                                 else if (i == 'R')
1827                                 {
1828                                         if (haschar(mptr, '@') == 0)
1829                                         {
1830                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1831                                         }
1832                                         else
1833                                         {
1834                                                 if ((flags & QP_EADDR) != 0)
1835                                                         mptr = qp_encode_email_addrs(mptr);
1836                                                 cprintf("To: %s%s", mptr, nl);
1837                                         }
1838                                 }
1839                                 else if (i == 'T') {
1840                                         datestring(datestamp, sizeof datestamp,
1841                                                 atol(mptr), DATESTRING_RFC822);
1842                                         cprintf("Date: %s%s", datestamp, nl);
1843                                 }
1844                                 else if (i == 'W') {
1845                                         cprintf("References: ");
1846                                         k = num_tokens(mptr, '|');
1847                                         for (j=0; j<k; ++j) {
1848                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1849                                                 cprintf("<%s>", buf);
1850                                                 if (j == (k-1)) {
1851                                                         cprintf("%s", nl);
1852                                                 }
1853                                                 else {
1854                                                         cprintf(" ");
1855                                                 }
1856                                         }
1857                                 }
1858                                 if (mptr != mpptr)
1859                                         free (mptr);
1860                         }
1861                 }
1862                 if (subject_found == 0) {
1863                         cprintf("Subject: (no subject)%s", nl);
1864                 }
1865         }
1866
1867         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1868                 suser[i] = tolower(suser[i]);
1869                 if (!isalnum(suser[i])) suser[i]='_';
1870         }
1871
1872         if (mode == MT_RFC822) {
1873                 if (!strcasecmp(snode, NODENAME)) {
1874                         safestrncpy(snode, FQDN, sizeof snode);
1875                 }
1876
1877                 /* Construct a fun message id */
1878                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1879                 if (strchr(mid, '@')==NULL) {
1880                         cprintf("@%s", snode);
1881                 }
1882                 cprintf(">%s", nl);
1883
1884                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1885                         cprintf("From: \"----\" <x@x.org>%s", nl);
1886                 }
1887                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1888                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1889                 }
1890                 else if (!IsEmptyStr(fuser)) {
1891                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1892                 }
1893                 else {
1894                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1895                 }
1896
1897                 cprintf("Organization: %s%s", lnode, nl);
1898
1899                 /* Blank line signifying RFC822 end-of-headers */
1900                 if (TheMessage->cm_format_type != FMT_RFC822) {
1901                         cprintf("%s", nl);
1902                 }
1903         }
1904
1905         /* end header processing loop ... at this point, we're in the text */
1906 START_TEXT:
1907         if (headers_only == HEADERS_FAST) goto DONE;
1908         mptr = TheMessage->cm_fields['M'];
1909
1910         /* Tell the client about the MIME parts in this message */
1911         if (TheMessage->cm_format_type == FMT_RFC822) {
1912                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1913                         memset(&ma, 0, sizeof(struct ma_info));
1914                         mime_parser(mptr, NULL,
1915                                 (do_proto ? *list_this_part : NULL),
1916                                 (do_proto ? *list_this_pref : NULL),
1917                                 (do_proto ? *list_this_suff : NULL),
1918                                 (void *)&ma, 0);
1919                 }
1920                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1921                         char *start_of_text = NULL;
1922                         start_of_text = strstr(mptr, "\n\r\n");
1923                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1924                         if (start_of_text == NULL) start_of_text = mptr;
1925                         ++start_of_text;
1926                         start_of_text = strstr(start_of_text, "\n");
1927                         ++start_of_text;
1928
1929                         char outbuf[1024];
1930                         int outlen = 0;
1931                         int nllen = strlen(nl);
1932                         prev_ch = 0;
1933                         while (ch=*mptr, ch!=0) {
1934                                 if (ch==13) {
1935                                         /* do nothing */
1936                                 }
1937                                 else {
1938                                         if (
1939                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1940                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1941                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1942                                         ) {
1943                                                 if (ch == 10) {
1944                                                         sprintf(&outbuf[outlen], "%s", nl);
1945                                                         outlen += nllen;
1946                                                 }
1947                                                 else {
1948                                                         outbuf[outlen++] = ch;
1949                                                 }
1950                                         }
1951                                 }
1952                                 if (flags & ESC_DOT)
1953                                 {
1954                                         if ((prev_ch == 10) && (ch == '.') && ((*(mptr+1) == 13) || (*(mptr+1) == 10)))
1955                                         {
1956                                                 outbuf[outlen++] = '.';
1957                                         }
1958                                 }
1959                                 prev_ch = ch;
1960                                 ++mptr;
1961                                 if (outlen > 1000) {
1962                                         client_write(outbuf, outlen);
1963                                         outlen = 0;
1964                                 }
1965                         }
1966                         if (outlen > 0) {
1967                                 client_write(outbuf, outlen);
1968                                 outlen = 0;
1969                         }
1970
1971                         goto DONE;
1972                 }
1973         }
1974
1975         if (headers_only == HEADERS_ONLY) {
1976                 goto DONE;
1977         }
1978
1979         /* signify start of msg text */
1980         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1981                 if (do_proto) cprintf("text\n");
1982         }
1983
1984         /* If the format type on disk is 1 (fixed-format), then we want
1985          * everything to be output completely literally ... regardless of
1986          * what message transfer format is in use.
1987          */
1988         if (TheMessage->cm_format_type == FMT_FIXED) {
1989                 int buflen;
1990                 if (mode == MT_MIME) {
1991                         cprintf("Content-type: text/plain\n\n");
1992                 }
1993                 *buf = '\0';
1994                 buflen = 0;
1995                 while (ch = *mptr++, ch > 0) {
1996                         if (ch == 13)
1997                                 ch = 10;
1998                         if ((ch == 10) || (buflen > 250)) {
1999                                 buf[buflen] = '\0';
2000                                 cprintf("%s%s", buf, nl);
2001                                 *buf = '\0';
2002                                 buflen = 0;
2003                         } else {
2004                                 buf[buflen] = ch;
2005                                 buflen++;
2006                         }
2007                 }
2008                 buf[buflen] = '\0';
2009                 if (!IsEmptyStr(buf))
2010                         cprintf("%s%s", buf, nl);
2011         }
2012
2013         /* If the message on disk is format 0 (Citadel vari-format), we
2014          * output using the formatter at 80 columns.  This is the final output
2015          * form if the transfer format is RFC822, but if the transfer format
2016          * is Citadel proprietary, it'll still work, because the indentation
2017          * for new paragraphs is correct and the client will reformat the
2018          * message to the reader's screen width.
2019          */
2020         if (TheMessage->cm_format_type == FMT_CITADEL) {
2021                 if (mode == MT_MIME) {
2022                         cprintf("Content-type: text/x-citadel-variformat\n\n");
2023                 }
2024                 memfmout(mptr, 0, nl);
2025         }
2026
2027         /* If the message on disk is format 4 (MIME), we've gotta hand it
2028          * off to the MIME parser.  The client has already been told that
2029          * this message is format 1 (fixed format), so the callback function
2030          * we use will display those parts as-is.
2031          */
2032         if (TheMessage->cm_format_type == FMT_RFC822) {
2033                 memset(&ma, 0, sizeof(struct ma_info));
2034
2035                 if (mode == MT_MIME) {
2036                         ma.use_fo_hooks = 0;
2037                         strcpy(ma.chosen_part, "1");
2038                         ma.chosen_pref = 9999;
2039                         mime_parser(mptr, NULL,
2040                                 *choose_preferred, *fixed_output_pre,
2041                                 *fixed_output_post, (void *)&ma, 0);
2042                         mime_parser(mptr, NULL,
2043                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
2044                 }
2045                 else {
2046                         ma.use_fo_hooks = 1;
2047                         mime_parser(mptr, NULL,
2048                                 *fixed_output, *fixed_output_pre,
2049                                 *fixed_output_post, (void *)&ma, 0);
2050                 }
2051
2052         }
2053
2054 DONE:   /* now we're done */
2055         if (do_proto) cprintf("000\n");
2056         return(om_ok);
2057 }
2058
2059
2060
2061 /*
2062  * display a message (mode 0 - Citadel proprietary)
2063  */
2064 void cmd_msg0(char *cmdbuf)
2065 {
2066         long msgid;
2067         int headers_only = HEADERS_ALL;
2068
2069         msgid = extract_long(cmdbuf, 0);
2070         headers_only = extract_int(cmdbuf, 1);
2071
2072         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL, 0);
2073         return;
2074 }
2075
2076
2077 /*
2078  * display a message (mode 2 - RFC822)
2079  */
2080 void cmd_msg2(char *cmdbuf)
2081 {
2082         long msgid;
2083         int headers_only = HEADERS_ALL;
2084
2085         msgid = extract_long(cmdbuf, 0);
2086         headers_only = extract_int(cmdbuf, 1);
2087
2088         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL, 0);
2089 }
2090
2091
2092
2093 /*
2094  * display a message (mode 3 - IGnet raw format - internal programs only)
2095  */
2096 void cmd_msg3(char *cmdbuf)
2097 {
2098         long msgnum;
2099         struct CtdlMessage *msg = NULL;
2100         struct ser_ret smr;
2101
2102         if (CC->internal_pgm == 0) {
2103                 cprintf("%d This command is for internal programs only.\n",
2104                         ERROR + HIGHER_ACCESS_REQUIRED);
2105                 return;
2106         }
2107
2108         msgnum = extract_long(cmdbuf, 0);
2109         msg = CtdlFetchMessage(msgnum, 1);
2110         if (msg == NULL) {
2111                 cprintf("%d Message %ld not found.\n",
2112                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2113                 return;
2114         }
2115
2116         serialize_message(&smr, msg);
2117         CtdlFreeMessage(msg);
2118
2119         if (smr.len == 0) {
2120                 cprintf("%d Unable to serialize message\n",
2121                         ERROR + INTERNAL_ERROR);
2122                 return;
2123         }
2124
2125         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2126         client_write((char *)smr.ser, (int)smr.len);
2127         free(smr.ser);
2128 }
2129
2130
2131
2132 /*
2133  * Display a message using MIME content types
2134  */
2135 void cmd_msg4(char *cmdbuf)
2136 {
2137         long msgid;
2138         char section[64];
2139
2140         msgid = extract_long(cmdbuf, 0);
2141         extract_token(section, cmdbuf, 1, '|', sizeof section);
2142         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) , 0);
2143 }
2144
2145
2146
2147 /*
2148  * Client tells us its preferred message format(s)
2149  */
2150 void cmd_msgp(char *cmdbuf)
2151 {
2152         if (!strcasecmp(cmdbuf, "dont_decode")) {
2153                 CC->msg4_dont_decode = 1;
2154                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2155         }
2156         else {
2157                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2158                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2159         }
2160 }
2161
2162
2163 /*
2164  * Open a component of a MIME message as a download file
2165  */
2166 void cmd_opna(char *cmdbuf)
2167 {
2168         long msgid;
2169         char desired_section[128];
2170
2171         msgid = extract_long(cmdbuf, 0);
2172         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2173         safestrncpy(CC->download_desired_section, desired_section,
2174                 sizeof CC->download_desired_section);
2175         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL, 0);
2176 }
2177
2178
2179 /*
2180  * Open a component of a MIME message and transmit it all at once
2181  */
2182 void cmd_dlat(char *cmdbuf)
2183 {
2184         long msgid;
2185         char desired_section[128];
2186
2187         msgid = extract_long(cmdbuf, 0);
2188         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2189         safestrncpy(CC->download_desired_section, desired_section,
2190                 sizeof CC->download_desired_section);
2191         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL, 0);
2192 }
2193
2194
2195 /*
2196  * Save one or more message pointers into a specified room
2197  * (Returns 0 for success, nonzero for failure)
2198  * roomname may be NULL to use the current room
2199  *
2200  * Note that the 'supplied_msg' field may be set to NULL, in which case
2201  * the message will be fetched from disk, by number, if we need to perform
2202  * replication checks.  This adds an additional database read, so if the
2203  * caller already has the message in memory then it should be supplied.  (Obviously
2204  * this mode of operation only works if we're saving a single message.)
2205  */
2206 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2207                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2208 {
2209         int i, j, unique;
2210         char hold_rm[ROOMNAMELEN];
2211         struct cdbdata *cdbfr;
2212         int num_msgs;
2213         long *msglist;
2214         long highest_msg = 0L;
2215
2216         long msgid = 0;
2217         struct CtdlMessage *msg = NULL;
2218
2219         long *msgs_to_be_merged = NULL;
2220         int num_msgs_to_be_merged = 0;
2221
2222         CtdlLogPrintf(CTDL_DEBUG,
2223                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2224                 roomname, num_newmsgs, do_repl_check);
2225
2226         strcpy(hold_rm, CC->room.QRname);
2227
2228         /* Sanity checks */
2229         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2230         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2231         if (num_newmsgs > 1) supplied_msg = NULL;
2232
2233         /* Now the regular stuff */
2234         if (lgetroom(&CC->room,
2235            ((roomname != NULL) ? roomname : CC->room.QRname) )
2236            != 0) {
2237                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2238                 return(ERROR + ROOM_NOT_FOUND);
2239         }
2240
2241
2242         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2243         num_msgs_to_be_merged = 0;
2244
2245
2246         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2247         if (cdbfr == NULL) {
2248                 msglist = NULL;
2249                 num_msgs = 0;
2250         } else {
2251                 msglist = (long *) cdbfr->ptr;
2252                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2253                 num_msgs = cdbfr->len / sizeof(long);
2254                 cdb_free(cdbfr);
2255         }
2256
2257
2258         /* Create a list of msgid's which were supplied by the caller, but do
2259          * not already exist in the target room.  It is absolutely taboo to
2260          * have more than one reference to the same message in a room.
2261          */
2262         for (i=0; i<num_newmsgs; ++i) {
2263                 unique = 1;
2264                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2265                         if (msglist[j] == newmsgidlist[i]) {
2266                                 unique = 0;
2267                         }
2268                 }
2269                 if (unique) {
2270                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2271                 }
2272         }
2273
2274         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2275
2276         /*
2277          * Now merge the new messages
2278          */
2279         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2280         if (msglist == NULL) {
2281                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2282         }
2283         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2284         num_msgs += num_msgs_to_be_merged;
2285
2286         /* Sort the message list, so all the msgid's are in order */
2287         num_msgs = sort_msglist(msglist, num_msgs);
2288
2289         /* Determine the highest message number */
2290         highest_msg = msglist[num_msgs - 1];
2291
2292         /* Write it back to disk. */
2293         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2294                   msglist, (int)(num_msgs * sizeof(long)));
2295
2296         /* Free up the memory we used. */
2297         free(msglist);
2298
2299         /* Update the highest-message pointer and unlock the room. */
2300         CC->room.QRhighest = highest_msg;
2301         lputroom(&CC->room);
2302
2303         /* Perform replication checks if necessary */
2304         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2305                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2306
2307                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2308                         msgid = msgs_to_be_merged[i];
2309
2310                         if (supplied_msg != NULL) {
2311                                 msg = supplied_msg;
2312                         }
2313                         else {
2314                                 msg = CtdlFetchMessage(msgid, 0);
2315                         }
2316
2317                         if (msg != NULL) {
2318                                 ReplicationChecks(msg);
2319
2320                                 /* If the message has an Exclusive ID, index that... */
2321                                 if (msg->cm_fields['E'] != NULL) {
2322                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2323                                 }
2324
2325                                 /* Free up the memory we may have allocated */
2326                                 if (msg != supplied_msg) {
2327                                         CtdlFreeMessage(msg);
2328                                 }
2329                         }
2330
2331                 }
2332         }
2333
2334         else {
2335                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2336         }
2337
2338         /* Submit this room for processing by hooks */
2339         PerformRoomHooks(&CC->room);
2340
2341         /* Go back to the room we were in before we wandered here... */
2342         getroom(&CC->room, hold_rm);
2343
2344         /* Bump the reference count for all messages which were merged */
2345         for (i=0; i<num_msgs_to_be_merged; ++i) {
2346                 AdjRefCount(msgs_to_be_merged[i], +1);
2347         }
2348
2349         /* Free up memory... */
2350         if (msgs_to_be_merged != NULL) {
2351                 free(msgs_to_be_merged);
2352         }
2353
2354         /* Return success. */
2355         return (0);
2356 }
2357
2358
2359 /*
2360  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2361  * a single message.
2362  */
2363 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2364                         int do_repl_check, struct CtdlMessage *supplied_msg)
2365 {
2366         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2367 }
2368
2369
2370
2371
2372 /*
2373  * Message base operation to save a new message to the message store
2374  * (returns new message number)
2375  *
2376  * This is the back end for CtdlSubmitMsg() and should not be directly
2377  * called by server-side modules.
2378  *
2379  */
2380 long send_message(struct CtdlMessage *msg) {
2381         long newmsgid;
2382         long retval;
2383         char msgidbuf[256];
2384         struct ser_ret smr;
2385         int is_bigmsg = 0;
2386         char *holdM = NULL;
2387
2388         /* Get a new message number */
2389         newmsgid = get_new_message_number();
2390         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2391
2392         /* Generate an ID if we don't have one already */
2393         if (msg->cm_fields['I']==NULL) {
2394                 msg->cm_fields['I'] = strdup(msgidbuf);
2395         }
2396
2397         /* If the message is big, set its body aside for storage elsewhere */
2398         if (msg->cm_fields['M'] != NULL) {
2399                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2400                         is_bigmsg = 1;
2401                         holdM = msg->cm_fields['M'];
2402                         msg->cm_fields['M'] = NULL;
2403                 }
2404         }
2405
2406         /* Serialize our data structure for storage in the database */
2407         serialize_message(&smr, msg);
2408
2409         if (is_bigmsg) {
2410                 msg->cm_fields['M'] = holdM;
2411         }
2412
2413         if (smr.len == 0) {
2414                 cprintf("%d Unable to serialize message\n",
2415                         ERROR + INTERNAL_ERROR);
2416                 return (-1L);
2417         }
2418
2419         /* Write our little bundle of joy into the message base */
2420         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2421                       smr.ser, smr.len) < 0) {
2422                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2423                 retval = 0L;
2424         } else {
2425                 if (is_bigmsg) {
2426                         cdb_store(CDB_BIGMSGS,
2427                                 &newmsgid,
2428                                 (int)sizeof(long),
2429                                 holdM,
2430                                 (strlen(holdM) + 1)
2431                         );
2432                 }
2433                 retval = newmsgid;
2434         }
2435
2436         /* Free the memory we used for the serialized message */
2437         free(smr.ser);
2438
2439         /* Return the *local* message ID to the caller
2440          * (even if we're storing an incoming network message)
2441          */
2442         return(retval);
2443 }
2444
2445
2446
2447 /*
2448  * Serialize a struct CtdlMessage into the format used on disk and network.
2449  *
2450  * This function loads up a "struct ser_ret" (defined in server.h) which
2451  * contains the length of the serialized message and a pointer to the
2452  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2453  */
2454 void serialize_message(struct ser_ret *ret,             /* return values */
2455                         struct CtdlMessage *msg)        /* unserialized msg */
2456 {
2457         size_t wlen, fieldlen;
2458         int i;
2459         static char *forder = FORDER;
2460
2461         /*
2462          * Check for valid message format
2463          */
2464         if (is_valid_message(msg) == 0) {
2465                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2466                 ret->len = 0;
2467                 ret->ser = NULL;
2468                 return;
2469         }
2470
2471         ret->len = 3;
2472         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2473                 ret->len = ret->len +
2474                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2475
2476         ret->ser = malloc(ret->len);
2477         if (ret->ser == NULL) {
2478                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2479                         (long)ret->len, strerror(errno));
2480                 ret->len = 0;
2481                 ret->ser = NULL;
2482                 return;
2483         }
2484
2485         ret->ser[0] = 0xFF;
2486         ret->ser[1] = msg->cm_anon_type;
2487         ret->ser[2] = msg->cm_format_type;
2488         wlen = 3;
2489
2490         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2491                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2492                 ret->ser[wlen++] = (char)forder[i];
2493                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2494                 wlen = wlen + fieldlen + 1;
2495         }
2496         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2497                 (long)ret->len, (long)wlen);
2498
2499         return;
2500 }
2501
2502
2503 /*
2504  * Serialize a struct CtdlMessage into the format used on disk and network.
2505  *
2506  * This function loads up a "struct ser_ret" (defined in server.h) which
2507  * contains the length of the serialized message and a pointer to the
2508  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2509  */
2510 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2511                   long Siz)                     /* how many chars ? */
2512 {
2513         size_t wlen;
2514         int i;
2515         static char *forder = FORDER;
2516         char *buf;
2517
2518         /*
2519          * Check for valid message format
2520          */
2521         if (is_valid_message(msg) == 0) {
2522                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2523                 return;
2524         }
2525
2526         buf = (char*) malloc (Siz + 1);
2527
2528         wlen = 3;
2529
2530         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2531                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i],
2532                                    msg->cm_fields[(int)forder[i]]);
2533                         client_write (buf, strlen(buf));
2534                 }
2535
2536         return;
2537 }
2538
2539
2540
2541 /*
2542  * Check to see if any messages already exist in the current room which
2543  * carry the same Exclusive ID as this one.  If any are found, delete them.
2544  */
2545 void ReplicationChecks(struct CtdlMessage *msg) {
2546         long old_msgnum = (-1L);
2547
2548         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2549
2550         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2551                 CC->room.QRname);
2552
2553         /* No exclusive id?  Don't do anything. */
2554         if (msg == NULL) return;
2555         if (msg->cm_fields['E'] == NULL) return;
2556         if (IsEmptyStr(msg->cm_fields['E'])) return;
2557         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2558                 msg->cm_fields['E'], CC->room.QRname);*/
2559
2560         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2561         if (old_msgnum > 0L) {
2562                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2563                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2564         }
2565 }
2566
2567
2568
2569 /*
2570  * Save a message to disk and submit it into the delivery system.
2571  */
2572 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2573                    struct recptypes *recps,     /* recipients (if mail) */
2574                    char *force,                 /* force a particular room? */
2575                    int flags                    /* should the bessage be exported clean? */
2576 ) {
2577         char submit_filename[128];
2578         char generated_timestamp[32];
2579         char hold_rm[ROOMNAMELEN];
2580         char actual_rm[ROOMNAMELEN];
2581         char force_room[ROOMNAMELEN];
2582         char content_type[SIZ];                 /* We have to learn this */
2583         char recipient[SIZ];
2584         long newmsgid;
2585         char *mptr = NULL;
2586         struct ctdluser userbuf;
2587         int a, i;
2588         struct MetaData smi;
2589         FILE *network_fp = NULL;
2590         static int seqnum = 1;
2591         struct CtdlMessage *imsg = NULL;
2592         char *instr = NULL;
2593         size_t instr_alloc = 0;
2594         struct ser_ret smr;
2595         char *hold_R, *hold_D;
2596         char *collected_addresses = NULL;
2597         struct addresses_to_be_filed *aptr = NULL;
2598         char *saved_rfc822_version = NULL;
2599         int qualified_for_journaling = 0;
2600         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2601         char bounce_to[1024] = "";
2602
2603         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2604         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2605
2606         /* If this message has no timestamp, we take the liberty of
2607          * giving it one, right now.
2608          */
2609         if (msg->cm_fields['T'] == NULL) {
2610                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2611                 msg->cm_fields['T'] = strdup(generated_timestamp);
2612         }
2613
2614         /* If this message has no path, we generate one.
2615          */
2616         if (msg->cm_fields['P'] == NULL) {
2617                 if (msg->cm_fields['A'] != NULL) {
2618                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2619                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2620                                 if (isspace(msg->cm_fields['P'][a])) {
2621                                         msg->cm_fields['P'][a] = ' ';
2622                                 }
2623                         }
2624                 }
2625                 else {
2626                         msg->cm_fields['P'] = strdup("unknown");
2627                 }
2628         }
2629
2630         if (force == NULL) {
2631                 strcpy(force_room, "");
2632         }
2633         else {
2634                 strcpy(force_room, force);
2635         }
2636
2637         /* Learn about what's inside, because it's what's inside that counts */
2638         if (msg->cm_fields['M'] == NULL) {
2639                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2640                 return(-2);
2641         }
2642
2643         switch (msg->cm_format_type) {
2644         case 0:
2645                 strcpy(content_type, "text/x-citadel-variformat");
2646                 break;
2647         case 1:
2648                 strcpy(content_type, "text/plain");
2649                 break;
2650         case 4:
2651                 strcpy(content_type, "text/plain");
2652                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2653                 if (mptr != NULL) {
2654                         char *aptr;
2655                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2656                         striplt(content_type);
2657                         aptr = content_type;
2658                         while (!IsEmptyStr(aptr)) {
2659                                 if ((*aptr == ';')
2660                                     || (*aptr == ' ')
2661                                     || (*aptr == 13)
2662                                     || (*aptr == 10)) {
2663                                         *aptr = 0;
2664                                 }
2665                                 else aptr++;
2666                         }
2667                 }
2668         }
2669
2670         /* Goto the correct room */
2671         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2672         strcpy(hold_rm, CCC->room.QRname);
2673         strcpy(actual_rm, CCC->room.QRname);
2674         if (recps != NULL) {
2675                 strcpy(actual_rm, SENTITEMS);
2676         }
2677
2678         /* If the user is a twit, move to the twit room for posting */
2679         if (TWITDETECT) {
2680                 if (CCC->user.axlevel == 2) {
2681                         strcpy(hold_rm, actual_rm);
2682                         strcpy(actual_rm, config.c_twitroom);
2683                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2684                 }
2685         }
2686
2687         /* ...or if this message is destined for Aide> then go there. */
2688         if (!IsEmptyStr(force_room)) {
2689                 strcpy(actual_rm, force_room);
2690         }
2691
2692         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2693         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2694                 /* getroom(&CCC->room, actual_rm); */
2695                 usergoto(actual_rm, 0, 1, NULL, NULL);
2696         }
2697
2698         /*
2699          * If this message has no O (room) field, generate one.
2700          */
2701         if (msg->cm_fields['O'] == NULL) {
2702                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2703         }
2704
2705         /* Perform "before save" hooks (aborting if any return nonzero) */
2706         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2707         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2708
2709         /*
2710          * If this message has an Exclusive ID, and the room is replication
2711          * checking enabled, then do replication checks.
2712          */
2713         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2714                 ReplicationChecks(msg);
2715         }
2716
2717         /* Save it to disk */
2718         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2719         newmsgid = send_message(msg);
2720         if (newmsgid <= 0L) return(-5);
2721
2722         /* Write a supplemental message info record.  This doesn't have to
2723          * be a critical section because nobody else knows about this message
2724          * yet.
2725          */
2726         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2727         memset(&smi, 0, sizeof(struct MetaData));
2728         smi.meta_msgnum = newmsgid;
2729         smi.meta_refcount = 0;
2730         safestrncpy(smi.meta_content_type, content_type,
2731                         sizeof smi.meta_content_type);
2732
2733         /*
2734          * Measure how big this message will be when rendered as RFC822.
2735          * We do this for two reasons:
2736          * 1. We need the RFC822 length for the new metadata record, so the
2737          *    POP and IMAP services don't have to calculate message lengths
2738          *    while the user is waiting (multiplied by potentially hundreds
2739          *    or thousands of messages).
2740          * 2. If journaling is enabled, we will need an RFC822 version of the
2741          *    message to attach to the journalized copy.
2742          */
2743         if (CCC->redirect_buffer != NULL) {
2744                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2745                 abort();
2746         }
2747         CCC->redirect_buffer = malloc(SIZ);
2748         CCC->redirect_len = 0;
2749         CCC->redirect_alloc = SIZ;
2750         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
2751         smi.meta_rfc822_length = CCC->redirect_len;
2752         saved_rfc822_version = CCC->redirect_buffer;
2753         CCC->redirect_buffer = NULL;
2754         CCC->redirect_len = 0;
2755         CCC->redirect_alloc = 0;
2756
2757         PutMetaData(&smi);
2758
2759         /* Now figure out where to store the pointers */
2760         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2761
2762         /* If this is being done by the networker delivering a private
2763          * message, we want to BYPASS saving the sender's copy (because there
2764          * is no local sender; it would otherwise go to the Trashcan).
2765          */
2766         if ((!CCC->internal_pgm) || (recps == NULL)) {
2767                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2768                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2769                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2770                 }
2771         }
2772
2773         /* For internet mail, drop a copy in the outbound queue room */
2774         if (recps != NULL)
2775          if (recps->num_internet > 0) {
2776                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2777         }
2778
2779         /* If other rooms are specified, drop them there too. */
2780         if (recps != NULL)
2781          if (recps->num_room > 0)
2782           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2783                 extract_token(recipient, recps->recp_room, i,
2784                                         '|', sizeof recipient);
2785                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2786                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2787         }
2788
2789         /* Bump this user's messages posted counter. */
2790         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2791         lgetuser(&CCC->user, CCC->curr_user);
2792         CCC->user.posted = CCC->user.posted + 1;
2793         lputuser(&CCC->user);
2794
2795         /* Decide where bounces need to be delivered */
2796         if (CCC->logged_in) {
2797                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", CCC->user.fullname, config.c_nodename);
2798         }
2799         else {
2800                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", msg->cm_fields['A'], msg->cm_fields['N']);
2801         }
2802
2803         /* If this is private, local mail, make a copy in the
2804          * recipient's mailbox and bump the reference count.
2805          */
2806         if (recps != NULL)
2807          if (recps->num_local > 0)
2808           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2809                 extract_token(recipient, recps->recp_local, i,
2810                                         '|', sizeof recipient);
2811                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2812                         recipient);
2813                 if (getuser(&userbuf, recipient) == 0) {
2814                         // Add a flag so the Funambol module knows its mail
2815                         msg->cm_fields['W'] = strdup(recipient);
2816                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2817                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2818                         BumpNewMailCounter(userbuf.usernum);
2819                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2820                         /* Generate a instruction message for the Funambol notification
2821                          * server, in the same style as the SMTP queue
2822                          */
2823                            instr_alloc = 1024;
2824                            instr = malloc(instr_alloc);
2825                            snprintf(instr, instr_alloc,
2826                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2827                         "bounceto|%s\n",
2828                         SPOOLMIME, newmsgid, (long)time(NULL),
2829                         bounce_to
2830                         );
2831
2832                            imsg = malloc(sizeof(struct CtdlMessage));
2833                            memset(imsg, 0, sizeof(struct CtdlMessage));
2834                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2835                            imsg->cm_anon_type = MES_NORMAL;
2836                            imsg->cm_format_type = FMT_RFC822;
2837                            imsg->cm_fields['A'] = strdup("Citadel");
2838                            imsg->cm_fields['J'] = strdup("do not journal");
2839                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2840                            imsg->cm_fields['W'] = strdup(recipient);
2841                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM, 0);
2842                            CtdlFreeMessage(imsg);
2843                         }
2844                 }
2845                 else {
2846                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2847                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2848                                 newmsgid, 0, msg);
2849                 }
2850         }
2851
2852         /* Perform "after save" hooks */
2853         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2854         PerformMessageHooks(msg, EVT_AFTERSAVE);
2855
2856         /* For IGnet mail, we have to save a new copy into the spooler for
2857          * each recipient, with the R and D fields set to the recipient and
2858          * destination-node.  This has two ugly side effects: all other
2859          * recipients end up being unlisted in this recipient's copy of the
2860          * message, and it has to deliver multiple messages to the same
2861          * node.  We'll revisit this again in a year or so when everyone has
2862          * a network spool receiver that can handle the new style messages.
2863          */
2864         if (recps != NULL)
2865          if (recps->num_ignet > 0)
2866           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2867                 extract_token(recipient, recps->recp_ignet, i,
2868                                 '|', sizeof recipient);
2869
2870                 hold_R = msg->cm_fields['R'];
2871                 hold_D = msg->cm_fields['D'];
2872                 msg->cm_fields['R'] = malloc(SIZ);
2873                 msg->cm_fields['D'] = malloc(128);
2874                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2875                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2876
2877                 serialize_message(&smr, msg);
2878                 if (smr.len > 0) {
2879                         snprintf(submit_filename, sizeof submit_filename,
2880                                          "%s/netmail.%04lx.%04x.%04x",
2881                                          ctdl_netin_dir,
2882                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2883                         network_fp = fopen(submit_filename, "wb+");
2884                         if (network_fp != NULL) {
2885                                 fwrite(smr.ser, smr.len, 1, network_fp);
2886                                 fclose(network_fp);
2887                         }
2888                         free(smr.ser);
2889                 }
2890
2891                 free(msg->cm_fields['R']);
2892                 free(msg->cm_fields['D']);
2893                 msg->cm_fields['R'] = hold_R;
2894                 msg->cm_fields['D'] = hold_D;
2895         }
2896
2897         /* Go back to the room we started from */
2898         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2899         if (strcasecmp(hold_rm, CCC->room.QRname))
2900                 usergoto(hold_rm, 0, 1, NULL, NULL);
2901
2902         /* For internet mail, generate delivery instructions.
2903          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2904          * not happen because the delivery instructions message does not
2905          * contain a recipient.
2906          */
2907         if (recps != NULL)
2908          if (recps->num_internet > 0) {
2909                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2910                 instr_alloc = 1024;
2911                 instr = malloc(instr_alloc);
2912                 snprintf(instr, instr_alloc,
2913                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2914                         "bounceto|%s\n",
2915                         SPOOLMIME, newmsgid, (long)time(NULL),
2916                         bounce_to
2917                 );
2918
2919                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2920                         size_t tmp = strlen(instr);
2921                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2922                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2923                                 instr_alloc = instr_alloc * 2;
2924                                 instr = realloc(instr, instr_alloc);
2925                         }
2926                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2927                 }
2928
2929                 imsg = malloc(sizeof(struct CtdlMessage));
2930                 memset(imsg, 0, sizeof(struct CtdlMessage));
2931                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2932                 imsg->cm_anon_type = MES_NORMAL;
2933                 imsg->cm_format_type = FMT_RFC822;
2934                 imsg->cm_fields['A'] = strdup("Citadel");
2935                 imsg->cm_fields['J'] = strdup("do not journal");
2936                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2937                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
2938                 CtdlFreeMessage(imsg);
2939         }
2940
2941         /*
2942          * Any addresses to harvest for someone's address book?
2943          */
2944         if ( (CCC->logged_in) && (recps != NULL) ) {
2945                 collected_addresses = harvest_collected_addresses(msg);
2946         }
2947
2948         if (collected_addresses != NULL) {
2949                 aptr = (struct addresses_to_be_filed *)
2950                         malloc(sizeof(struct addresses_to_be_filed));
2951                 MailboxName(actual_rm, sizeof actual_rm,
2952                         &CCC->user, USERCONTACTSROOM);
2953                 aptr->roomname = strdup(actual_rm);
2954                 aptr->collected_addresses = collected_addresses;
2955                 begin_critical_section(S_ATBF);
2956                 aptr->next = atbf;
2957                 atbf = aptr;
2958                 end_critical_section(S_ATBF);
2959         }
2960
2961         /*
2962          * Determine whether this message qualifies for journaling.
2963          */
2964         if (msg->cm_fields['J'] != NULL) {
2965                 qualified_for_journaling = 0;
2966         }
2967         else {
2968                 if (recps == NULL) {
2969                         qualified_for_journaling = config.c_journal_pubmsgs;
2970                 }
2971                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2972                         qualified_for_journaling = config.c_journal_email;
2973                 }
2974                 else {
2975                         qualified_for_journaling = config.c_journal_pubmsgs;
2976                 }
2977         }
2978
2979         /*
2980          * Do we have to perform journaling?  If so, hand off the saved
2981          * RFC822 version will be handed off to the journaler for background
2982          * submit.  Otherwise, we have to free the memory ourselves.
2983          */
2984         if (saved_rfc822_version != NULL) {
2985                 if (qualified_for_journaling) {
2986                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2987                 }
2988                 else {
2989                         free(saved_rfc822_version);
2990                 }
2991         }
2992
2993         /* Done. */
2994         return(newmsgid);
2995 }
2996
2997
2998
2999
3000
3001 /*
3002  * Convenience function for generating small administrative messages.
3003  */
3004 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text,
3005                         int format_type, char *subject)
3006 {
3007         struct CtdlMessage *msg;
3008         struct recptypes *recp = NULL;
3009
3010         msg = malloc(sizeof(struct CtdlMessage));
3011         memset(msg, 0, sizeof(struct CtdlMessage));
3012         msg->cm_magic = CTDLMESSAGE_MAGIC;
3013         msg->cm_anon_type = MES_NORMAL;
3014         msg->cm_format_type = format_type;
3015
3016         if (from != NULL) {
3017                 msg->cm_fields['A'] = strdup(from);
3018         }
3019         else if (fromaddr != NULL) {
3020                 msg->cm_fields['A'] = strdup(fromaddr);
3021                 if (strchr(msg->cm_fields['A'], '@')) {
3022                         *strchr(msg->cm_fields['A'], '@') = 0;
3023                 }
3024         }
3025         else {
3026                 msg->cm_fields['A'] = strdup("Citadel");
3027         }
3028
3029         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
3030         if (room != NULL) msg->cm_fields['O'] = strdup(room);
3031         msg->cm_fields['N'] = strdup(NODENAME);
3032         if (to != NULL) {
3033                 msg->cm_fields['R'] = strdup(to);
3034                 recp = validate_recipients(to, NULL, 0);
3035         }
3036         if (subject != NULL) {
3037                 msg->cm_fields['U'] = strdup(subject);
3038         }
3039         msg->cm_fields['M'] = strdup(text);
3040
3041         CtdlSubmitMsg(msg, recp, room, 0);
3042         CtdlFreeMessage(msg);
3043         if (recp != NULL) free_recipients(recp);
3044 }
3045
3046
3047
3048 /*
3049  * Back end function used by CtdlMakeMessage() and similar functions
3050  */
3051 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
3052                         size_t maxlen,          /* maximum message length */
3053                         char *exist,            /* if non-null, append to it;
3054                                                    exist is ALWAYS freed  */
3055                         int crlf,               /* CRLF newlines instead of LF */
3056                         int sock                /* socket handle or 0 for this session's client socket */
3057                         ) {
3058         char buf[1024];
3059         int linelen;
3060         size_t message_len = 0;
3061         size_t buffer_len = 0;
3062         char *ptr;
3063         char *m;
3064         int flushing = 0;
3065         int finished = 0;
3066         int dotdot = 0;
3067
3068         if (exist == NULL) {
3069                 m = malloc(4096);
3070                 m[0] = 0;
3071                 buffer_len = 4096;
3072                 message_len = 0;
3073         }
3074         else {
3075                 message_len = strlen(exist);
3076                 buffer_len = message_len + 4096;
3077                 m = realloc(exist, buffer_len);
3078                 if (m == NULL) {
3079                         free(exist);
3080                         return m;
3081                 }
3082         }
3083
3084         /* Do we need to change leading ".." to "." for SMTP escaping? */
3085         if (!strcmp(terminator, ".")) {
3086                 dotdot = 1;
3087         }
3088
3089         /* flush the input if we have nowhere to store it */
3090         if (m == NULL) {
3091                 flushing = 1;
3092         }
3093
3094         /* read in the lines of message text one by one */
3095         do {
3096                 if (sock > 0) {
3097                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3098                 }
3099                 else {
3100                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3101                 }
3102                 if (!strcmp(buf, terminator)) finished = 1;
3103                 if (crlf) {
3104                         strcat(buf, "\r\n");
3105                 }
3106                 else {
3107                         strcat(buf, "\n");
3108                 }
3109
3110                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3111                 if (dotdot) {
3112                         if (!strncmp(buf, "..", 2)) {
3113                                 strcpy(buf, &buf[1]);
3114                         }
3115                 }
3116
3117                 if ( (!flushing) && (!finished) ) {
3118                         /* Measure the line */
3119                         linelen = strlen(buf);
3120
3121                         /* augment the buffer if we have to */
3122                         if ((message_len + linelen) >= buffer_len) {
3123                                 ptr = realloc(m, (buffer_len * 2) );
3124                                 if (ptr == NULL) {      /* flush if can't allocate */
3125                                         flushing = 1;
3126                                 } else {
3127                                         buffer_len = (buffer_len * 2);
3128                                         m = ptr;
3129                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3130                                 }
3131                         }
3132
3133                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3134                         * using functions like strcat() and strlen() because they
3135                         * traverse the entire buffer upon every call, and doing that
3136                         * for a multi-megabyte message slows it down beyond usability.
3137                         */
3138                         strcpy(&m[message_len], buf);
3139                         message_len += linelen;
3140                 }
3141
3142                 /* if we've hit the max msg length, flush the rest */
3143                 if (message_len >= maxlen) flushing = 1;
3144
3145         } while (!finished);
3146         return(m);
3147 }
3148
3149
3150
3151
3152 /*
3153  * Build a binary message to be saved on disk.
3154  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3155  * will become part of the message.  This means you are no longer
3156  * responsible for managing that memory -- it will be freed along with
3157  * the rest of the fields when CtdlFreeMessage() is called.)
3158  */
3159
3160 struct CtdlMessage *CtdlMakeMessage(
3161         struct ctdluser *author,        /* author's user structure */
3162         char *recipient,                /* NULL if it's not mail */
3163         char *recp_cc,                  /* NULL if it's not mail */
3164         char *room,                     /* room where it's going */
3165         int type,                       /* see MES_ types in header file */
3166         int format_type,                /* variformat, plain text, MIME... */
3167         char *fake_name,                /* who we're masquerading as */
3168         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3169         char *subject,                  /* Subject (optional) */
3170         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3171         char *preformatted_text,        /* ...or NULL to read text from client */
3172         char *references                /* Thread references */
3173 ) {
3174         char dest_node[256];
3175         char buf[1024];
3176         struct CtdlMessage *msg;
3177
3178         msg = malloc(sizeof(struct CtdlMessage));
3179         memset(msg, 0, sizeof(struct CtdlMessage));
3180         msg->cm_magic = CTDLMESSAGE_MAGIC;
3181         msg->cm_anon_type = type;
3182         msg->cm_format_type = format_type;
3183
3184         /* Don't confuse the poor folks if it's not routed mail. */
3185         strcpy(dest_node, "");
3186
3187         striplt(recipient);
3188         striplt(recp_cc);
3189
3190         /* Path or Return-Path */
3191         if (my_email == NULL) my_email = "";
3192
3193         if (!IsEmptyStr(my_email)) {
3194                 msg->cm_fields['P'] = strdup(my_email);
3195         }
3196         else {
3197                 snprintf(buf, sizeof buf, "%s", author->fullname);
3198                 msg->cm_fields['P'] = strdup(buf);
3199         }
3200         convert_spaces_to_underscores(msg->cm_fields['P']);
3201
3202         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3203         msg->cm_fields['T'] = strdup(buf);
3204
3205         if (fake_name[0])                                       /* author */
3206                 msg->cm_fields['A'] = strdup(fake_name);
3207         else
3208                 msg->cm_fields['A'] = strdup(author->fullname);
3209
3210         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3211                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3212         }
3213         else {
3214                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3215         }
3216
3217         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3218         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3219
3220         if (recipient[0] != 0) {
3221                 msg->cm_fields['R'] = strdup(recipient);
3222         }
3223         if (recp_cc[0] != 0) {
3224                 msg->cm_fields['Y'] = strdup(recp_cc);
3225         }
3226         if (dest_node[0] != 0) {
3227                 msg->cm_fields['D'] = strdup(dest_node);
3228         }
3229
3230         if (!IsEmptyStr(my_email)) {
3231                 msg->cm_fields['F'] = strdup(my_email);
3232         }
3233         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3234                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3235         }
3236
3237         if (subject != NULL) {
3238                 long length;
3239                 striplt(subject);
3240                 length = strlen(subject);
3241                 if (length > 0) {
3242                         long i;
3243                         long IsAscii;
3244                         IsAscii = -1;
3245                         i = 0;
3246                         while ((subject[i] != '\0') &&
3247                                (IsAscii = isascii(subject[i]) != 0 ))
3248                                 i++;
3249                         if (IsAscii != 0)
3250                                 msg->cm_fields['U'] = strdup(subject);
3251                         else /* ok, we've got utf8 in the string. */
3252                         {
3253                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3254                         }
3255
3256                 }
3257         }
3258
3259         if (supplied_euid != NULL) {
3260                 msg->cm_fields['E'] = strdup(supplied_euid);
3261         }
3262
3263         if (references != NULL) {
3264                 if (!IsEmptyStr(references)) {
3265                         msg->cm_fields['W'] = strdup(references);
3266                 }
3267         }
3268
3269         if (preformatted_text != NULL) {
3270                 msg->cm_fields['M'] = preformatted_text;
3271         }
3272         else {
3273                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3274         }
3275
3276         return(msg);
3277 }
3278
3279
3280 /*
3281  * Check to see whether we have permission to post a message in the current
3282  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3283  * returns 0 on success.
3284  */
3285 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf,
3286                                           size_t n,
3287                                           const char* RemoteIdentifier,
3288                                           int PostPublic) {
3289         int ra;
3290
3291         if (!(CC->logged_in) &&
3292             (PostPublic == POST_LOGGED_IN)) {
3293                 snprintf(errmsgbuf, n, "Not logged in.");
3294                 return (ERROR + NOT_LOGGED_IN);
3295         }
3296         else if (PostPublic == CHECK_EXISTANCE) {
3297                 return (0); // We're Evaling whether a recipient exists
3298         }
3299         else if (!(CC->logged_in)) {
3300
3301                 if ((CC->room.QRflags & QR_READONLY)) {
3302                         snprintf(errmsgbuf, n, "Not logged in.");
3303                         return (ERROR + NOT_LOGGED_IN);
3304                 }
3305                 if (CC->room.QRflags2 & QR2_MODERATED) {
3306                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3307                         return (ERROR + NOT_LOGGED_IN);
3308                 }
3309                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3310                         SpoolControl *sc;
3311                         char filename[SIZ];
3312                         int found;
3313
3314                         if (RemoteIdentifier == NULL)
3315                         {
3316                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3317                                 return (ERROR + USERNAME_REQUIRED);
3318                         }
3319
3320                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3321                         begin_critical_section(S_NETCONFIGS);
3322                         if (!read_spoolcontrol_file(&sc, filename))
3323                         {
3324                                 end_critical_section(S_NETCONFIGS);
3325                                 snprintf(errmsgbuf, n,
3326                                         "This mailing list only accepts posts from subscribers.");
3327                                 return (ERROR + NO_SUCH_USER);
3328                         }
3329                         end_critical_section(S_NETCONFIGS);
3330                         found = is_recipient (sc, RemoteIdentifier);
3331                         free_spoolcontrol_struct(&sc);
3332                         if (found) {
3333                                 return (0);
3334                         }
3335                         else {
3336                                 snprintf(errmsgbuf, n,
3337                                         "This mailing list only accepts posts from subscribers.");
3338                                 return (ERROR + NO_SUCH_USER);
3339                         }
3340                 }
3341                 return (0);
3342
3343         }
3344
3345         if ((CC->user.axlevel < 2)
3346             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3347                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3348                                 "(except in %s> to sysop)", MAILROOM);
3349                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3350         }
3351
3352         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3353         if (!(ra & UA_POSTALLOWED)) {
3354                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3355                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3356         }
3357
3358         strcpy(errmsgbuf, "Ok");
3359         return(0);
3360 }
3361
3362
3363 /*
3364  * Check to see if the specified user has Internet mail permission
3365  * (returns nonzero if permission is granted)
3366  */
3367 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3368
3369         /* Do not allow twits to send Internet mail */
3370         if (who->axlevel <= 2) return(0);
3371
3372         /* Globally enabled? */
3373         if (config.c_restrict == 0) return(1);
3374
3375         /* User flagged ok? */
3376         if (who->flags & US_INTERNET) return(2);
3377
3378         /* Aide level access? */
3379         if (who->axlevel >= 6) return(3);
3380
3381         /* No mail for you! */
3382         return(0);
3383 }
3384
3385
3386 /*
3387  * Validate recipients, count delivery types and errors, and handle aliasing
3388  * FIXME check for dupes!!!!!
3389  *
3390  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
3391  * were specified, or the number of addresses found invalid.
3392  *
3393  * Caller needs to free the result using free_recipients()
3394  */
3395 struct recptypes *validate_recipients(char *supplied_recipients,
3396                                       const char *RemoteIdentifier,
3397                                       int Flags) {
3398         struct recptypes *ret;
3399         char *recipients = NULL;
3400         char this_recp[256];
3401         char this_recp_cooked[256];
3402         char append[SIZ];
3403         int num_recps = 0;
3404         int i, j;
3405         int mailtype;
3406         int invalid;
3407         struct ctdluser tempUS;
3408         struct ctdlroom tempQR;
3409         struct ctdlroom tempQR2;
3410         int err = 0;
3411         char errmsg[SIZ];
3412         int in_quotes = 0;
3413
3414         /* Initialize */
3415         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3416         if (ret == NULL) return(NULL);
3417
3418         /* Set all strings to null and numeric values to zero */
3419         memset(ret, 0, sizeof(struct recptypes));
3420
3421         if (supplied_recipients == NULL) {
3422                 recipients = strdup("");
3423         }
3424         else {
3425                 recipients = strdup(supplied_recipients);
3426         }
3427
3428         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3429          * actually need, but it's healthier for the heap than doing lots of tiny
3430          * realloc() calls instead.
3431          */
3432
3433         ret->errormsg = malloc(strlen(recipients) + 1024);
3434         ret->recp_local = malloc(strlen(recipients) + 1024);
3435         ret->recp_internet = malloc(strlen(recipients) + 1024);
3436         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3437         ret->recp_room = malloc(strlen(recipients) + 1024);
3438         ret->display_recp = malloc(strlen(recipients) + 1024);
3439
3440         ret->errormsg[0] = 0;
3441         ret->recp_local[0] = 0;
3442         ret->recp_internet[0] = 0;
3443         ret->recp_ignet[0] = 0;
3444         ret->recp_room[0] = 0;
3445         ret->display_recp[0] = 0;
3446
3447         ret->recptypes_magic = RECPTYPES_MAGIC;
3448
3449         /* Change all valid separator characters to commas */
3450         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3451                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3452                         recipients[i] = ',';
3453                 }
3454         }
3455
3456         /* Now start extracting recipients... */
3457
3458         while (!IsEmptyStr(recipients)) {
3459
3460                 for (i=0; i<=strlen(recipients); ++i) {
3461                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3462                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3463                                 safestrncpy(this_recp, recipients, i+1);
3464                                 this_recp[i] = 0;
3465                                 if (recipients[i] == ',') {
3466                                         strcpy(recipients, &recipients[i+1]);
3467                                 }
3468                                 else {
3469                                         strcpy(recipients, "");
3470                                 }
3471                                 break;
3472                         }
3473                 }
3474
3475                 striplt(this_recp);
3476                 if (IsEmptyStr(this_recp))
3477                         break;
3478                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3479                 ++num_recps;
3480                 mailtype = alias(this_recp);
3481                 mailtype = alias(this_recp);
3482                 mailtype = alias(this_recp);
3483                 j = 0;
3484                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3485                         if (this_recp[j]=='_') {
3486                                 this_recp_cooked[j] = ' ';
3487                         }
3488                         else {
3489                                 this_recp_cooked[j] = this_recp[j];
3490                         }
3491                 }
3492                 this_recp_cooked[j] = '\0';
3493                 invalid = 0;
3494                 errmsg[0] = 0;
3495                 switch(mailtype) {
3496                         case MES_LOCAL:
3497                                 if (!strcasecmp(this_recp, "sysop")) {
3498                                         ++ret->num_room;
3499                                         strcpy(this_recp, config.c_aideroom);
3500                                         if (!IsEmptyStr(ret->recp_room)) {
3501                                                 strcat(ret->recp_room, "|");
3502                                         }
3503                                         strcat(ret->recp_room, this_recp);
3504                                 }
3505                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3506                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3507
3508                                         /* Save room so we can restore it later */
3509                                         tempQR2 = CC->room;
3510                                         CC->room = tempQR;
3511
3512                                         /* Check permissions to send mail to this room */
3513                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg,
3514                                                                                     sizeof errmsg,
3515                                                                                     RemoteIdentifier,
3516                                                                                     Flags
3517                                         );
3518                                         if (err)
3519                                         {
3520                                                 ++ret->num_error;
3521                                                 invalid = 1;
3522                                         }
3523                                         else {
3524                                                 ++ret->num_room;
3525                                                 if (!IsEmptyStr(ret->recp_room)) {
3526                                                         strcat(ret->recp_room, "|");
3527                                                 }
3528                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3529                                         }
3530
3531                                         /* Restore room in case something needs it */
3532                                         CC->room = tempQR2;
3533
3534                                 }
3535                                 else if (getuser(&tempUS, this_recp) == 0) {
3536                                         ++ret->num_local;
3537                                         strcpy(this_recp, tempUS.fullname);
3538                                         if (!IsEmptyStr(ret->recp_local)) {
3539                                                 strcat(ret->recp_local, "|");
3540                                         }
3541                                         strcat(ret->recp_local, this_recp);
3542                                 }
3543                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3544                                         ++ret->num_local;
3545                                         strcpy(this_recp, tempUS.fullname);
3546                                         if (!IsEmptyStr(ret->recp_local)) {
3547                                                 strcat(ret->recp_local, "|");
3548                                         }
3549                                         strcat(ret->recp_local, this_recp);
3550                                 }
3551                                 else {
3552                                         ++ret->num_error;
3553                                         invalid = 1;
3554                                 }
3555                                 break;
3556                         case MES_INTERNET:
3557                                 /* Yes, you're reading this correctly: if the target
3558                                  * domain points back to the local system or an attached
3559                                  * Citadel directory, the address is invalid.  That's
3560                                  * because if the address were valid, we would have
3561                                  * already translated it to a local address by now.
3562                                  */
3563                                 if (IsDirectory(this_recp, 0)) {
3564                                         ++ret->num_error;
3565                                         invalid = 1;
3566                                 }
3567                                 else {
3568                                         ++ret->num_internet;
3569                                         if (!IsEmptyStr(ret->recp_internet)) {
3570                                                 strcat(ret->recp_internet, "|");
3571                                         }
3572                                         strcat(ret->recp_internet, this_recp);
3573                                 }
3574                                 break;
3575                         case MES_IGNET:
3576                                 ++ret->num_ignet;
3577                                 if (!IsEmptyStr(ret->recp_ignet)) {
3578                                         strcat(ret->recp_ignet, "|");
3579                                 }
3580                                 strcat(ret->recp_ignet, this_recp);
3581                                 break;
3582                         case MES_ERROR:
3583                                 ++ret->num_error;
3584                                 invalid = 1;
3585                                 break;
3586                 }
3587                 if (invalid) {
3588                         if (IsEmptyStr(errmsg)) {
3589                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3590                         }
3591                         else {
3592                                 snprintf(append, sizeof append, "%s", errmsg);
3593                         }
3594                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3595                                 if (!IsEmptyStr(ret->errormsg)) {
3596                                         strcat(ret->errormsg, "; ");
3597                                 }
3598                                 strcat(ret->errormsg, append);
3599                         }
3600                 }
3601                 else {
3602                         if (IsEmptyStr(ret->display_recp)) {
3603                                 strcpy(append, this_recp);
3604                         }
3605                         else {
3606                                 snprintf(append, sizeof append, ", %s", this_recp);
3607                         }
3608                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3609                                 strcat(ret->display_recp, append);
3610                         }
3611                 }
3612         }
3613
3614         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3615            ret->num_room + ret->num_error) == 0) {
3616                 ret->num_error = (-1);
3617                 strcpy(ret->errormsg, "No recipients specified.");
3618         }
3619
3620         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3621         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3622         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3623         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3624         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3625         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3626
3627         free(recipients);
3628         return(ret);
3629 }
3630
3631
3632 /*
3633  * Destructor for struct recptypes
3634  */
3635 void free_recipients(struct recptypes *valid) {
3636
3637         if (valid == NULL) {
3638                 return;
3639         }
3640
3641         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3642                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3643                 abort();
3644         }
3645
3646         if (valid->errormsg != NULL)            free(valid->errormsg);
3647         if (valid->recp_local != NULL)          free(valid->recp_local);
3648         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3649         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3650         if (valid->recp_room != NULL)           free(valid->recp_room);
3651         if (valid->display_recp != NULL)        free(valid->display_recp);
3652         free(valid);
3653 }
3654
3655
3656
3657 /*
3658  * message entry  -  mode 0 (normal)
3659  */
3660 void cmd_ent0(char *entargs)
3661 {
3662         int post = 0;
3663         char recp[SIZ];
3664         char cc[SIZ];
3665         char bcc[SIZ];
3666         char supplied_euid[128];
3667         int anon_flag = 0;
3668         int format_type = 0;
3669         char newusername[256];
3670         char newuseremail[256];
3671         struct CtdlMessage *msg;
3672         int anonymous = 0;
3673         char errmsg[SIZ];
3674         int err = 0;
3675         struct recptypes *valid = NULL;
3676         struct recptypes *valid_to = NULL;
3677         struct recptypes *valid_cc = NULL;
3678         struct recptypes *valid_bcc = NULL;
3679         char subject[SIZ];
3680         int subject_required = 0;
3681         int do_confirm = 0;
3682         long msgnum;
3683         int i, j;
3684         char buf[256];
3685         int newuseremail_ok = 0;
3686         char references[SIZ];
3687         char *ptr;
3688
3689         unbuffer_output();
3690
3691         post = extract_int(entargs, 0);
3692         extract_token(recp, entargs, 1, '|', sizeof recp);
3693         anon_flag = extract_int(entargs, 2);
3694         format_type = extract_int(entargs, 3);
3695         extract_token(subject, entargs, 4, '|', sizeof subject);
3696         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3697         do_confirm = extract_int(entargs, 6);
3698         extract_token(cc, entargs, 7, '|', sizeof cc);
3699         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3700         switch(CC->room.QRdefaultview) {
3701                 case VIEW_NOTES:
3702                 case VIEW_WIKI:
3703                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3704                         break;
3705                 default:
3706                         supplied_euid[0] = 0;
3707                         break;
3708         }
3709         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3710         extract_token(references, entargs, 11, '|', sizeof references);
3711         for (ptr=references; *ptr != 0; ++ptr) {
3712                 if (*ptr == '!') *ptr = '|';
3713         }
3714
3715         /* first check to make sure the request is valid. */
3716
3717         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3718         if (err)
3719         {
3720                 cprintf("%d %s\n", err, errmsg);
3721                 return;
3722         }
3723
3724         /* Check some other permission type things. */
3725
3726         if (IsEmptyStr(newusername)) {
3727                 strcpy(newusername, CC->user.fullname);
3728         }
3729         if (  (CC->user.axlevel < 6)
3730            && (strcasecmp(newusername, CC->user.fullname))
3731            && (strcasecmp(newusername, CC->cs_inet_fn))
3732         ) {
3733                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3734                         ERROR + HIGHER_ACCESS_REQUIRED,
3735                         newusername
3736                 );
3737                 return;
3738         }
3739
3740
3741         if (IsEmptyStr(newuseremail)) {
3742                 newuseremail_ok = 1;
3743         }
3744
3745         if (!IsEmptyStr(newuseremail)) {
3746                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3747                         newuseremail_ok = 1;
3748                 }
3749                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3750                         j = num_tokens(CC->cs_inet_other_emails, '|');
3751                         for (i=0; i<j; ++i) {
3752                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3753                                 if (!strcasecmp(newuseremail, buf)) {
3754                                         newuseremail_ok = 1;
3755                                 }
3756                         }
3757                 }
3758         }
3759
3760         if (!newuseremail_ok) {
3761                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3762                         ERROR + HIGHER_ACCESS_REQUIRED,
3763                         newuseremail
3764                 );
3765                 return;
3766         }
3767
3768         CC->cs_flags |= CS_POSTING;
3769
3770         /* In mailbox rooms we have to behave a little differently --
3771          * make sure the user has specified at least one recipient.  Then
3772          * validate the recipient(s).  We do this for the Mail> room, as
3773          * well as any room which has the "Mailbox" view set.
3774          */
3775
3776         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3777            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3778         ) {
3779                 if (CC->user.axlevel < 2) {
3780                         strcpy(recp, "sysop");
3781                         strcpy(cc, "");
3782                         strcpy(bcc, "");
3783                 }
3784
3785                 valid_to = validate_recipients(recp, NULL, 0);
3786                 if (valid_to->num_error > 0) {
3787                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3788                         free_recipients(valid_to);
3789                         return;
3790                 }
3791
3792                 valid_cc = validate_recipients(cc, NULL, 0);
3793                 if (valid_cc->num_error > 0) {
3794                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3795                         free_recipients(valid_to);
3796                         free_recipients(valid_cc);
3797                         return;
3798                 }
3799
3800                 valid_bcc = validate_recipients(bcc, NULL, 0);
3801                 if (valid_bcc->num_error > 0) {
3802                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3803                         free_recipients(valid_to);
3804                         free_recipients(valid_cc);
3805                         free_recipients(valid_bcc);
3806                         return;
3807                 }
3808
3809                 /* Recipient required, but none were specified */
3810                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3811                         free_recipients(valid_to);
3812                         free_recipients(valid_cc);
3813                         free_recipients(valid_bcc);
3814                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3815                         return;
3816                 }
3817
3818                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3819                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3820                                 cprintf("%d You do not have permission "
3821                                         "to send Internet mail.\n",
3822                                         ERROR + HIGHER_ACCESS_REQUIRED);
3823                                 free_recipients(valid_to);
3824                                 free_recipients(valid_cc);
3825                                 free_recipients(valid_bcc);
3826                                 return;
3827                         }
3828                 }
3829
3830                 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)
3831                    && (CC->user.axlevel < 4) ) {
3832                         cprintf("%d Higher access required for network mail.\n",
3833                                 ERROR + HIGHER_ACCESS_REQUIRED);
3834                         free_recipients(valid_to);
3835                         free_recipients(valid_cc);
3836                         free_recipients(valid_bcc);
3837                         return;
3838                 }
3839
3840                 if ((RESTRICT_INTERNET == 1)
3841                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3842                     && ((CC->user.flags & US_INTERNET) == 0)
3843                     && (!CC->internal_pgm)) {
3844                         cprintf("%d You don't have access to Internet mail.\n",
3845                                 ERROR + HIGHER_ACCESS_REQUIRED);
3846                         free_recipients(valid_to);
3847                         free_recipients(valid_cc);
3848                         free_recipients(valid_bcc);
3849                         return;
3850                 }
3851
3852         }
3853
3854         /* Is this a room which has anonymous-only or anonymous-option? */
3855         anonymous = MES_NORMAL;
3856         if (CC->room.QRflags & QR_ANONONLY) {
3857                 anonymous = MES_ANONONLY;
3858         }
3859         if (CC->room.QRflags & QR_ANONOPT) {
3860                 if (anon_flag == 1) {   /* only if the user requested it */
3861                         anonymous = MES_ANONOPT;
3862                 }
3863         }
3864
3865         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3866                 recp[0] = 0;
3867         }
3868
3869         /* Recommend to the client that the use of a message subject is
3870          * strongly recommended in this room, if either the SUBJECTREQ flag
3871          * is set, or if there is one or more Internet email recipients.
3872          */
3873         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3874         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3875         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3876         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3877
3878         /* If we're only checking the validity of the request, return
3879          * success without creating the message.
3880          */
3881         if (post == 0) {
3882                 cprintf("%d %s|%d\n", CIT_OK,
3883                         ((valid_to != NULL) ? valid_to->display_recp : ""),
3884                         subject_required);
3885                 free_recipients(valid_to);
3886                 free_recipients(valid_cc);
3887                 free_recipients(valid_bcc);
3888                 return;
3889         }
3890
3891         /* We don't need these anymore because we'll do it differently below */
3892         free_recipients(valid_to);
3893         free_recipients(valid_cc);
3894         free_recipients(valid_bcc);
3895
3896         /* Read in the message from the client. */
3897         if (do_confirm) {
3898                 cprintf("%d send message\n", START_CHAT_MODE);
3899         } else {
3900                 cprintf("%d send message\n", SEND_LISTING);
3901         }
3902
3903         msg = CtdlMakeMessage(&CC->user, recp, cc,
3904                 CC->room.QRname, anonymous, format_type,
3905                 newusername, newuseremail, subject,
3906                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3907                 NULL, references);
3908
3909         /* Put together one big recipients struct containing to/cc/bcc all in
3910          * one.  This is for the envelope.
3911          */
3912         char *all_recps = malloc(SIZ * 3);
3913         strcpy(all_recps, recp);
3914         if (!IsEmptyStr(cc)) {
3915                 if (!IsEmptyStr(all_recps)) {
3916                         strcat(all_recps, ",");
3917                 }
3918                 strcat(all_recps, cc);
3919         }
3920         if (!IsEmptyStr(bcc)) {
3921                 if (!IsEmptyStr(all_recps)) {
3922                         strcat(all_recps, ",");
3923                 }
3924                 strcat(all_recps, bcc);
3925         }
3926         if (!IsEmptyStr(all_recps)) {
3927                 valid = validate_recipients(all_recps, NULL, 0);
3928         }
3929         else {
3930                 valid = NULL;
3931         }
3932         free(all_recps);
3933
3934         if (msg != NULL) {
3935                 msgnum = CtdlSubmitMsg(msg, valid, "", QP_EADDR);
3936
3937                 if (do_confirm) {
3938                         cprintf("%ld\n", msgnum);
3939                         if (msgnum >= 0L) {
3940                                 cprintf("Message accepted.\n");
3941                         }
3942                         else {
3943                                 cprintf("Internal error.\n");
3944                         }
3945                         if (msg->cm_fields['E'] != NULL) {
3946                                 cprintf("%s\n", msg->cm_fields['E']);
3947                         } else {
3948                                 cprintf("\n");
3949                         }
3950                         cprintf("000\n");
3951                 }
3952
3953                 CtdlFreeMessage(msg);
3954         }
3955         if (valid != NULL) {
3956                 free_recipients(valid);
3957         }
3958         return;
3959 }
3960
3961
3962
3963 /*
3964  * API function to delete messages which match a set of criteria
3965  * (returns the actual number of messages deleted)
3966  */
3967 int CtdlDeleteMessages(char *room_name,         /* which room */
3968                         long *dmsgnums,         /* array of msg numbers to be deleted */
3969                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3970                         char *content_type      /* or "" for any.  regular expressions expected. */
3971 )
3972 {
3973         struct ctdlroom qrbuf;
3974         struct cdbdata *cdbfr;
3975         long *msglist = NULL;
3976         long *dellist = NULL;
3977         int num_msgs = 0;
3978         int i, j;
3979         int num_deleted = 0;
3980         int delete_this;
3981         struct MetaData smi;
3982         regex_t re;
3983         regmatch_t pm;
3984         int need_to_free_re = 0;
3985
3986         if (content_type) if (!IsEmptyStr(content_type)) {
3987                 regcomp(&re, content_type, 0);
3988                 need_to_free_re = 1;
3989         }
3990         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3991                 room_name, num_dmsgnums, content_type);
3992
3993         /* get room record, obtaining a lock... */
3994         if (lgetroom(&qrbuf, room_name) != 0) {
3995                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3996                         room_name);
3997                 if (need_to_free_re) regfree(&re);
3998                 return (0);     /* room not found */
3999         }
4000         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
4001
4002         if (cdbfr != NULL) {
4003                 dellist = malloc(cdbfr->len);
4004                 msglist = (long *) cdbfr->ptr;
4005                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
4006                 num_msgs = cdbfr->len / sizeof(long);
4007                 cdb_free(cdbfr);
4008         }
4009         if (num_msgs > 0) {
4010                 for (i = 0; i < num_msgs; ++i) {
4011                         delete_this = 0x00;
4012
4013                         /* Set/clear a bit for each criterion */
4014
4015                         /* 0 messages in the list or a null list means that we are
4016                          * interested in deleting any messages which meet the other criteria.
4017                          */
4018                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
4019                                 delete_this |= 0x01;
4020                         }
4021                         else {
4022                                 for (j=0; j<num_dmsgnums; ++j) {
4023                                         if (msglist[i] == dmsgnums[j]) {
4024                                                 delete_this |= 0x01;
4025                                         }
4026                                 }
4027                         }
4028
4029                         if (IsEmptyStr(content_type)) {
4030                                 delete_this |= 0x02;
4031                         } else {
4032                                 GetMetaData(&smi, msglist[i]);
4033                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
4034                                         delete_this |= 0x02;
4035                                 }
4036                         }
4037
4038                         /* Delete message only if all bits are set */
4039                         if (delete_this == 0x03) {
4040                                 dellist[num_deleted++] = msglist[i];
4041                                 msglist[i] = 0L;
4042                         }
4043                 }
4044
4045                 num_msgs = sort_msglist(msglist, num_msgs);
4046                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
4047                           msglist, (int)(num_msgs * sizeof(long)));
4048
4049                 qrbuf.QRhighest = msglist[num_msgs - 1];
4050         }
4051         lputroom(&qrbuf);
4052
4053         /* Go through the messages we pulled out of the index, and decrement
4054          * their reference counts by 1.  If this is the only room the message
4055          * was in, the reference count will reach zero and the message will
4056          * automatically be deleted from the database.  We do this in a
4057          * separate pass because there might be plug-in hooks getting called,
4058          * and we don't want that happening during an S_ROOMS critical
4059          * section.
4060          */
4061         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4062                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4063                 AdjRefCount(dellist[i], -1);
4064         }
4065
4066         /* Now free the memory we used, and go away. */
4067         if (msglist != NULL) free(msglist);
4068         if (dellist != NULL) free(dellist);
4069         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4070         if (need_to_free_re) regfree(&re);
4071         return (num_deleted);
4072 }
4073
4074
4075
4076 /*
4077  * Check whether the current user has permission to delete messages from
4078  * the current room (returns 1 for yes, 0 for no)
4079  */
4080 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4081         int ra;
4082         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4083         if (ra & UA_DELETEALLOWED) return(1);
4084         return(0);
4085 }
4086
4087
4088
4089
4090 /*
4091  * Delete message from current room
4092  */
4093 void cmd_dele(char *args)
4094 {
4095         int num_deleted;
4096         int i;
4097         char msgset[SIZ];
4098         char msgtok[32];
4099         long *msgs;
4100         int num_msgs = 0;
4101
4102         extract_token(msgset, args, 0, '|', sizeof msgset);
4103         num_msgs = num_tokens(msgset, ',');
4104         if (num_msgs < 1) {
4105                 cprintf("%d Nothing to do.\n", CIT_OK);
4106                 return;
4107         }
4108
4109         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4110                 cprintf("%d Higher access required.\n",
4111                         ERROR + HIGHER_ACCESS_REQUIRED);
4112                 return;
4113         }
4114
4115         /*
4116          * Build our message set to be moved/copied
4117          */
4118         msgs = malloc(num_msgs * sizeof(long));
4119         for (i=0; i<num_msgs; ++i) {
4120                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4121                 msgs[i] = atol(msgtok);
4122         }
4123
4124         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4125         free(msgs);
4126
4127         if (num_deleted) {
4128                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4129                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4130         } else {
4131                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4132         }
4133 }
4134
4135
4136 /*
4137  * Back end API function for moves and deletes (multiple messages)
4138  */
4139 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4140         int err;
4141
4142         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4143         if (err != 0) return(err);
4144
4145         return(0);
4146 }
4147
4148
4149
4150
4151 /*
4152  * move or copy a message to another room
4153  */
4154 void cmd_move(char *args)
4155 {
4156         char msgset[SIZ];
4157         char msgtok[32];
4158         long *msgs;
4159         int num_msgs = 0;
4160
4161         char targ[ROOMNAMELEN];
4162         struct ctdlroom qtemp;
4163         int err;
4164         int is_copy = 0;
4165         int ra;
4166         int permit = 0;
4167         int i;
4168
4169         extract_token(msgset, args, 0, '|', sizeof msgset);
4170         num_msgs = num_tokens(msgset, ',');
4171         if (num_msgs < 1) {
4172                 cprintf("%d Nothing to do.\n", CIT_OK);
4173                 return;
4174         }
4175
4176         extract_token(targ, args, 1, '|', sizeof targ);
4177         convert_room_name_macros(targ, sizeof targ);
4178         targ[ROOMNAMELEN - 1] = 0;
4179         is_copy = extract_int(args, 2);
4180
4181         if (getroom(&qtemp, targ) != 0) {
4182                 cprintf("%d '%s' does not exist.\n",
4183                         ERROR + ROOM_NOT_FOUND, targ);
4184                 return;
4185         }
4186
4187         getuser(&CC->user, CC->curr_user);
4188         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4189
4190         /* Check for permission to perform this operation.
4191          * Remember: "CC->room" is source, "qtemp" is target.
4192          */
4193         permit = 0;
4194
4195         /* Aides can move/copy */
4196         if (CC->user.axlevel >= 6) permit = 1;
4197
4198         /* Room aides can move/copy */
4199         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4200
4201         /* Permit move/copy from personal rooms */
4202         if ((CC->room.QRflags & QR_MAILBOX)
4203            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4204
4205         /* Permit only copy from public to personal room */
4206         if ( (is_copy)
4207            && (!(CC->room.QRflags & QR_MAILBOX))
4208            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4209
4210         /* Permit message removal from collaborative delete rooms */
4211         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4212
4213         /* Users allowed to post into the target room may move into it too. */
4214         if ((CC->room.QRflags & QR_MAILBOX) &&
4215             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4216
4217         /* User must have access to target room */
4218         if (!(ra & UA_KNOWN))  permit = 0;
4219
4220         if (!permit) {
4221                 cprintf("%d Higher access required.\n",
4222                         ERROR + HIGHER_ACCESS_REQUIRED);
4223                 return;
4224         }
4225
4226         /*
4227          * Build our message set to be moved/copied
4228          */
4229         msgs = malloc(num_msgs * sizeof(long));
4230         for (i=0; i<num_msgs; ++i) {
4231                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4232                 msgs[i] = atol(msgtok);
4233         }
4234
4235         /*
4236          * Do the copy
4237          */
4238         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4239         if (err != 0) {
4240                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4241                         err, targ, err);
4242                 free(msgs);
4243                 return;
4244         }
4245
4246         /* Now delete the message from the source room,
4247          * if this is a 'move' rather than a 'copy' operation.
4248          */
4249         if (is_copy == 0) {
4250                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4251         }
4252         free(msgs);
4253
4254         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4255 }
4256
4257
4258
4259 /*
4260  * GetMetaData()  -  Get the supplementary record for a message
4261  */
4262 void GetMetaData(struct MetaData *smibuf, long msgnum)
4263 {
4264
4265         struct cdbdata *cdbsmi;
4266         long TheIndex;
4267
4268         memset(smibuf, 0, sizeof(struct MetaData));
4269         smibuf->meta_msgnum = msgnum;
4270         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4271
4272         /* Use the negative of the message number for its supp record index */
4273         TheIndex = (0L - msgnum);
4274
4275         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4276         if (cdbsmi == NULL) {
4277                 return;         /* record not found; go with defaults */
4278         }
4279         memcpy(smibuf, cdbsmi->ptr,
4280                ((cdbsmi->len > sizeof(struct MetaData)) ?
4281                 sizeof(struct MetaData) : cdbsmi->len));
4282         cdb_free(cdbsmi);
4283         return;
4284 }
4285
4286
4287 /*
4288  * PutMetaData()  -  (re)write supplementary record for a message
4289  */
4290 void PutMetaData(struct MetaData *smibuf)
4291 {
4292         long TheIndex;
4293
4294         /* Use the negative of the message number for the metadata db index */
4295         TheIndex = (0L - smibuf->meta_msgnum);
4296
4297         cdb_store(CDB_MSGMAIN,
4298                   &TheIndex, (int)sizeof(long),
4299                   smibuf, (int)sizeof(struct MetaData));
4300
4301 }
4302
4303 /*
4304  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4305  *                 (These are just queued -- we actually process them later.)
4306  */
4307 void AdjRefCount(long msgnum, int incr)
4308 {
4309         struct arcq new_arcq;
4310
4311         begin_critical_section(S_SUPPMSGMAIN);
4312         if (arcfp == NULL) {
4313                 arcfp = fopen(file_arcq, "ab+");
4314         }
4315         end_critical_section(S_SUPPMSGMAIN);
4316
4317         /* msgnum < 0 means that we're trying to close the file */
4318         if (msgnum < 0) {
4319                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4320                 begin_critical_section(S_SUPPMSGMAIN);
4321                 if (arcfp != NULL) {
4322                         fclose(arcfp);
4323                         arcfp = NULL;
4324                 }
4325                 end_critical_section(S_SUPPMSGMAIN);
4326                 return;
4327         }
4328
4329         /*
4330          * If we can't open the queue, perform the operation synchronously.
4331          */
4332         if (arcfp == NULL) {
4333                 TDAP_AdjRefCount(msgnum, incr);
4334                 return;
4335         }
4336
4337         new_arcq.arcq_msgnum = msgnum;
4338         new_arcq.arcq_delta = incr;
4339         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4340         fflush(arcfp);
4341
4342         return;
4343 }
4344
4345
4346 /*
4347  * TDAP_ProcessAdjRefCountQueue()
4348  *
4349  * Process the queue of message count adjustments that was created by calls
4350  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4351  * for each one.  This should be an "off hours" operation.
4352  */
4353 int TDAP_ProcessAdjRefCountQueue(void)
4354 {
4355         char file_arcq_temp[PATH_MAX];
4356         int r;
4357         FILE *fp;
4358         struct arcq arcq_rec;
4359         int num_records_processed = 0;
4360
4361         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s.%04x", file_arcq, rand());
4362
4363         begin_critical_section(S_SUPPMSGMAIN);
4364         if (arcfp != NULL) {
4365                 fclose(arcfp);
4366                 arcfp = NULL;
4367         }
4368
4369         r = link(file_arcq, file_arcq_temp);
4370         if (r != 0) {
4371                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4372                 end_critical_section(S_SUPPMSGMAIN);
4373                 return(num_records_processed);
4374         }
4375
4376         unlink(file_arcq);
4377         end_critical_section(S_SUPPMSGMAIN);
4378
4379         fp = fopen(file_arcq_temp, "rb");
4380         if (fp == NULL) {
4381                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4382                 return(num_records_processed);
4383         }
4384
4385         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4386                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4387                 ++num_records_processed;
4388         }
4389
4390         fclose(fp);
4391         r = unlink(file_arcq_temp);
4392         if (r != 0) {
4393                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4394         }
4395
4396         return(num_records_processed);
4397 }
4398
4399
4400
4401 /*
4402  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4403  *                      This one does it "for real" because it's called by
4404  *                      the autopurger function that processes the queue
4405  *                      created by AdjRefCount().   If a message's reference
4406  *                      count becomes zero, we also delete the message from
4407  *                      disk and de-index it.
4408  */
4409 void TDAP_AdjRefCount(long msgnum, int incr)
4410 {
4411
4412         struct MetaData smi;
4413         long delnum;
4414
4415         /* This is a *tight* critical section; please keep it that way, as
4416          * it may get called while nested in other critical sections.
4417          * Complicating this any further will surely cause deadlock!
4418          */
4419         begin_critical_section(S_SUPPMSGMAIN);
4420         GetMetaData(&smi, msgnum);
4421         smi.meta_refcount += incr;
4422         PutMetaData(&smi);
4423         end_critical_section(S_SUPPMSGMAIN);
4424         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %+d, is now %d\n",
4425                 msgnum, incr, smi.meta_refcount);
4426
4427         /* If the reference count is now zero, delete the message
4428          * (and its supplementary record as well).
4429          */
4430         if (smi.meta_refcount == 0) {
4431                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4432
4433                 /* Call delete hooks with NULL room to show it has gone altogether */
4434                 PerformDeleteHooks(NULL, msgnum);
4435
4436                 /* Remove from message base */
4437                 delnum = msgnum;
4438                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4439                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4440
4441                 /* Remove metadata record */
4442                 delnum = (0L - msgnum);
4443                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4444         }
4445
4446 }
4447
4448 /*
4449  * Write a generic object to this room
4450  *
4451  * Note: this could be much more efficient.  Right now we use two temporary
4452  * files, and still pull the message into memory as with all others.
4453  */
4454 void CtdlWriteObject(char *req_room,                    /* Room to stuff it in */
4455                         char *content_type,             /* MIME type of this object */
4456                         char *raw_message,              /* Data to be written */
4457                         off_t raw_length,               /* Size of raw_message */
4458                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4459                         int is_binary,                  /* Is encoding necessary? */
4460                         int is_unique,                  /* Del others of this type? */
4461                         unsigned int flags              /* Internal save flags */
4462                         )
4463 {
4464
4465         struct ctdlroom qrbuf;
4466         char roomname[ROOMNAMELEN];
4467         struct CtdlMessage *msg;
4468         char *encoded_message = NULL;
4469
4470         if (is_mailbox != NULL) {
4471                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4472         }
4473         else {
4474                 safestrncpy(roomname, req_room, sizeof(roomname));
4475         }
4476
4477         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4478
4479         if (is_binary) {
4480                 encoded_message = malloc((size_t) (((raw_length * 134) / 100) + 4096 ) );
4481         }
4482         else {
4483                 encoded_message = malloc((size_t)(raw_length + 4096));
4484         }
4485
4486         sprintf(encoded_message, "Content-type: %s\n", content_type);
4487
4488         if (is_binary) {
4489                 sprintf(&encoded_message[strlen(encoded_message)],
4490                         "Content-transfer-encoding: base64\n\n"
4491                 );
4492         }
4493         else {
4494                 sprintf(&encoded_message[strlen(encoded_message)],
4495                         "Content-transfer-encoding: 7bit\n\n"
4496                 );
4497         }
4498
4499         if (is_binary) {
4500                 CtdlEncodeBase64(
4501                         &encoded_message[strlen(encoded_message)],
4502                         raw_message,
4503                         (int)raw_length,
4504                         0
4505                 );
4506         }
4507         else {
4508                 memcpy(
4509                         &encoded_message[strlen(encoded_message)],
4510                         raw_message,
4511                         (int)(raw_length+1)
4512                 );
4513         }
4514
4515         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4516         msg = malloc(sizeof(struct CtdlMessage));
4517         memset(msg, 0, sizeof(struct CtdlMessage));
4518         msg->cm_magic = CTDLMESSAGE_MAGIC;
4519         msg->cm_anon_type = MES_NORMAL;
4520         msg->cm_format_type = 4;
4521         msg->cm_fields['A'] = strdup(CC->user.fullname);
4522         msg->cm_fields['O'] = strdup(req_room);
4523         msg->cm_fields['N'] = strdup(config.c_nodename);
4524         msg->cm_fields['H'] = strdup(config.c_humannode);
4525         msg->cm_flags = flags;
4526
4527         msg->cm_fields['M'] = encoded_message;
4528
4529         /* Create the requested room if we have to. */
4530         if (getroom(&qrbuf, roomname) != 0) {
4531                 create_room(roomname,
4532                         ( (is_mailbox != NULL) ? 5 : 3 ),
4533                         "", 0, 1, 0, VIEW_BBS);
4534         }
4535         /* If the caller specified this object as unique, delete all
4536          * other objects of this type that are currently in the room.
4537          */
4538         if (is_unique) {
4539                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4540                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4541                 );
4542         }
4543         /* Now write the data */
4544         CtdlSubmitMsg(msg, NULL, roomname, 0);
4545         CtdlFreeMessage(msg);
4546 }
4547
4548
4549
4550
4551
4552
4553 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4554         config_msgnum = msgnum;
4555 }
4556
4557
4558 char *CtdlGetSysConfig(char *sysconfname) {
4559         char hold_rm[ROOMNAMELEN];
4560         long msgnum;
4561         char *conf;
4562         struct CtdlMessage *msg;
4563         char buf[SIZ];
4564
4565         strcpy(hold_rm, CC->room.QRname);
4566         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4567                 getroom(&CC->room, hold_rm);
4568                 return NULL;
4569         }
4570
4571
4572         /* We want the last (and probably only) config in this room */
4573         begin_critical_section(S_CONFIG);
4574         config_msgnum = (-1L);
4575         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4576                 CtdlGetSysConfigBackend, NULL);
4577         msgnum = config_msgnum;
4578         end_critical_section(S_CONFIG);
4579
4580         if (msgnum < 0L) {
4581                 conf = NULL;
4582         }
4583         else {
4584                 msg = CtdlFetchMessage(msgnum, 1);
4585                 if (msg != NULL) {
4586                         conf = strdup(msg->cm_fields['M']);
4587                         CtdlFreeMessage(msg);
4588                 }
4589                 else {
4590                         conf = NULL;
4591                 }
4592         }
4593
4594         getroom(&CC->room, hold_rm);
4595
4596         if (conf != NULL) do {
4597                 extract_token(buf, conf, 0, '\n', sizeof buf);
4598                 strcpy(conf, &conf[strlen(buf)+1]);
4599         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4600
4601         return(conf);
4602 }
4603
4604
4605 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4606         CtdlWriteObject(SYSCONFIGROOM, sysconfname, sysconfdata, (strlen(sysconfdata)+1), NULL, 0, 1, 0);
4607 }
4608
4609
4610 /*
4611  * Determine whether a given Internet address belongs to the current user
4612  */
4613 int CtdlIsMe(char *addr, int addr_buf_len)
4614 {
4615         struct recptypes *recp;
4616         int i;
4617
4618         recp = validate_recipients(addr, NULL, 0);
4619         if (recp == NULL) return(0);
4620
4621         if (recp->num_local == 0) {
4622                 free_recipients(recp);
4623                 return(0);
4624         }
4625
4626         for (i=0; i<recp->num_local; ++i) {
4627                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4628                 if (!strcasecmp(addr, CC->user.fullname)) {
4629                         free_recipients(recp);
4630                         return(1);
4631                 }
4632         }
4633
4634         free_recipients(recp);
4635         return(0);
4636 }
4637
4638
4639 /*
4640  * Citadel protocol command to do the same
4641  */
4642 void cmd_isme(char *argbuf) {
4643         char addr[256];
4644
4645         if (CtdlAccessCheck(ac_logged_in)) return;
4646         extract_token(addr, argbuf, 0, '|', sizeof addr);
4647
4648         if (CtdlIsMe(addr, sizeof addr)) {
4649                 cprintf("%d %s\n", CIT_OK, addr);
4650         }
4651         else {
4652                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4653         }
4654
4655 }