citadel/msgbase.c

   1 /*
   2  * $Id$
   3  *
   4  * Implements the message store.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13
  14 #if TIME_WITH_SYS_TIME
  15 # include <sys/time.h>
  16 # include <time.h>
  17 #else
  18 # if HAVE_SYS_TIME_H
  19 #  include <sys/time.h>
  20 # else
  21 #  include <time.h>
  22 # endif
  23 #endif
  24
  25
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <limits.h>
  29 #include <errno.h>
  30 #include <stdarg.h>
  31 #include <sys/stat.h>
  32 #include <sys/types.h>
  33 #include <regex.h>
  34 #include <libcitadel.h>
  35 #include "citadel.h"
  36 #include "server.h"
  37 #include "serv_extensions.h"
  38 #include "database.h"
  39 #include "msgbase.h"
  40 #include "support.h"
  41 #include "sysdep_decls.h"
  42 #include "citserver.h"
  43 #include "room_ops.h"
  44 #include "user_ops.h"
  45 #include "file_ops.h"
  46 #include "config.h"
  47 #include "control.h"
  48 #include "genstamp.h"
  49 #include "internet_addressing.h"
  50 #include "euidindex.h"
  51 #include "journaling.h"
  52 #include "citadel_dirs.h"
  53 #include "clientsocket.h"
  54 #include "serv_network.h"
  55 #include "threads.h"
  56
  57 long config_msgnum;
  58 struct addresses_to_be_filed *atbf = NULL;
  59
  60 /* This temp file holds the queue of operations for AdjRefCount() */
  61 static FILE *arcfp = NULL;
  62
  63 /*
  64  * This really belongs in serv_network.c, but I don't know how to export
  65  * symbols between modules.
  66  */
  67 struct FilterList *filterlist = NULL;
  68
  69
  70 /*
  71  * These are the four-character field headers we use when outputting
  72  * messages in Citadel format (as opposed to RFC822 format).
  73  */
  74 char *msgkeys[] = {
  75         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  76         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  77         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  78         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  79         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  80         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  81         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  82         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  83         NULL,
  84         "from",
  85         NULL, NULL, NULL,
  86         "exti",
  87         "rfca",
  88         NULL,
  89         "hnod",
  90         "msgn",
  91         "jrnl",
  92         NULL,
  93         "list",
  94         "text",
  95         "node",
  96         "room",
  97         "path",
  98         NULL,
  99         "rcpt",
 100         "spec",
 101         "time",
 102         "subj",
 103         NULL,
 104         "wefw",
 105         NULL,
 106         "cccc",
 107         NULL
 108 };
 109
 110 /*
 111  * This function is self explanatory.
 112  * (What can I say, I'm in a weird mood today...)
 113  */
 114 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
 115 {
 116         int i;
 117
 118         for (i = 0; i < strlen(name); ++i) {
 119                 if (name[i] == '@') {
 120                         while (isspace(name[i - 1]) && i > 0) {
 121                                 strcpy(&name[i - 1], &name[i]);
 122                                 --i;
 123                         }
 124                         while (isspace(name[i + 1])) {
 125                                 strcpy(&name[i + 1], &name[i + 2]);
 126                         }
 127                 }
 128         }
 129 }
 130
 131
 132 /*
 133  * Aliasing for network mail.
 134  * (Error messages have been commented out, because this is a server.)
 135  */
 136 int alias(char *name)
 137 {                               /* process alias and routing info for mail */
 138         FILE *fp;
 139         int a, i;
 140         char aaa[SIZ], bbb[SIZ];
 141         char *ignetcfg = NULL;
 142         char *ignetmap = NULL;
 143         int at = 0;
 144         char node[64];
 145         char testnode[64];
 146         char buf[SIZ];
 147
 148         char original_name[256];
 149         safestrncpy(original_name, name, sizeof original_name);
 150
 151         striplt(name);
 152         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 153         stripallbut(name, '<', '>');
 154
 155         fp = fopen(file_mail_aliases, "r");
 156         if (fp == NULL) {
 157                 fp = fopen("/dev/null", "r");
 158         }
 159         if (fp == NULL) {
 160                 return (MES_ERROR);
 161         }
 162         strcpy(aaa, "");
 163         strcpy(bbb, "");
 164         while (fgets(aaa, sizeof aaa, fp) != NULL) {
 165                 while (isspace(name[0]))
 166                         strcpy(name, &name[1]);
 167                 aaa[strlen(aaa) - 1] = 0;
 168                 strcpy(bbb, "");
 169                 for (a = 0; a < strlen(aaa); ++a) {
 170                         if (aaa[a] == ',') {
 171                                 strcpy(bbb, &aaa[a + 1]);
 172                                 aaa[a] = 0;
 173                         }
 174                 }
 175                 if (!strcasecmp(name, aaa))
 176                         strcpy(name, bbb);
 177         }
 178         fclose(fp);
 179
 180         /* Hit the Global Address Book */
 181         if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
 182                 strcpy(name, aaa);
 183         }
 184
 185         if (strcasecmp(original_name, name)) {
 186                 CtdlLogPrintf(CTDL_INFO, "%s is being forwarded to %s\n", original_name, name);
 187         }
 188
 189         /* Change "user @ xxx" to "user" if xxx is an alias for this host */
 190         for (a=0; a<strlen(name); ++a) {
 191                 if (name[a] == '@') {
 192                         if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
 193                                 name[a] = 0;
 194                                 CtdlLogPrintf(CTDL_INFO, "Changed to <%s>\n", name);
 195                         }
 196                 }
 197         }
 198
 199         /* determine local or remote type, see citadel.h */
 200         at = haschar(name, '@');
 201         if (at == 0) return(MES_LOCAL);         /* no @'s - local address */
 202         if (at > 1) return(MES_ERROR);          /* >1 @'s - invalid address */
 203         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
 204
 205         /* figure out the delivery mode */
 206         extract_token(node, name, 1, '@', sizeof node);
 207
 208         /* If there are one or more dots in the nodename, we assume that it
 209          * is an FQDN and will attempt SMTP delivery to the Internet.
 210          */
 211         if (haschar(node, '.') > 0) {
 212                 return(MES_INTERNET);
 213         }
 214
 215         /* Otherwise we look in the IGnet maps for a valid Citadel node.
 216          * Try directly-connected nodes first...
 217          */
 218         ignetcfg = CtdlGetSysConfig(IGNETCFG);
 219         for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
 220                 extract_token(buf, ignetcfg, i, '\n', sizeof buf);
 221                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 222                 if (!strcasecmp(node, testnode)) {
 223                         free(ignetcfg);
 224                         return(MES_IGNET);
 225                 }
 226         }
 227         free(ignetcfg);
 228
 229         /*
 230          * Then try nodes that are two or more hops away.
 231          */
 232         ignetmap = CtdlGetSysConfig(IGNETMAP);
 233         for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
 234                 extract_token(buf, ignetmap, i, '\n', sizeof buf);
 235                 extract_token(testnode, buf, 0, '|', sizeof testnode);
 236                 if (!strcasecmp(node, testnode)) {
 237                         free(ignetmap);
 238                         return(MES_IGNET);
 239                 }
 240         }
 241         free(ignetmap);
 242
 243         /* If we get to this point it's an invalid node name */
 244         return (MES_ERROR);
 245 }
 246
 247
 248 /*
 249  * Back end for the MSGS command: output message number only.
 250  */
 251 void simple_listing(long msgnum, void *userdata)
 252 {
 253         cprintf("%ld\n", msgnum);
 254 }
 255
 256
 257
 258 /*
 259  * Back end for the MSGS command: output header summary.
 260  */
 261 void headers_listing(long msgnum, void *userdata)
 262 {
 263         struct CtdlMessage *msg;
 264
 265         msg = CtdlFetchMessage(msgnum, 0);
 266         if (msg == NULL) {
 267                 cprintf("%ld|0|||||\n", msgnum);
 268                 return;
 269         }
 270
 271         cprintf("%ld|%s|%s|%s|%s|%s|\n",
 272                 msgnum,
 273                 (msg->cm_fields['T'] ? msg->cm_fields['T'] : "0"),
 274                 (msg->cm_fields['A'] ? msg->cm_fields['A'] : ""),
 275                 (msg->cm_fields['N'] ? msg->cm_fields['N'] : ""),
 276                 (msg->cm_fields['F'] ? msg->cm_fields['F'] : ""),
 277                 (msg->cm_fields['U'] ? msg->cm_fields['U'] : "")
 278         );
 279         CtdlFreeMessage(msg);
 280 }
 281
 282
 283
 284 /* Determine if a given message matches the fields in a message template.
 285  * Return 0 for a successful match.
 286  */
 287 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
 288         int i;
 289
 290         /* If there aren't any fields in the template, all messages will
 291          * match.
 292          */
 293         if (template == NULL) return(0);
 294
 295         /* Null messages are bogus. */
 296         if (msg == NULL) return(1);
 297
 298         for (i='A'; i<='Z'; ++i) {
 299                 if (template->cm_fields[i] != NULL) {
 300                         if (msg->cm_fields[i] == NULL) {
 301                                 return 1;
 302                         }
 303                         if (strcasecmp(msg->cm_fields[i],
 304                                 template->cm_fields[i])) return 1;
 305                 }
 306         }
 307
 308         /* All compares succeeded: we have a match! */
 309         return 0;
 310 }
 311
 312
 313
 314 /*
 315  * Retrieve the "seen" message list for the current room.
 316  */
 317 void CtdlGetSeen(char *buf, int which_set) {
 318         struct visit vbuf;
 319
 320         /* Learn about the user and room in question */
 321         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 322
 323         if (which_set == ctdlsetseen_seen)
 324                 safestrncpy(buf, vbuf.v_seen, SIZ);
 325         if (which_set == ctdlsetseen_answered)
 326                 safestrncpy(buf, vbuf.v_answered, SIZ);
 327 }
 328
 329
 330
 331 /*
 332  * Manipulate the "seen msgs" string (or other message set strings)
 333  */
 334 void CtdlSetSeen(long *target_msgnums, int num_target_msgnums,
 335                 int target_setting, int which_set,
 336                 struct ctdluser *which_user, struct ctdlroom *which_room) {
 337         struct cdbdata *cdbfr;
 338         int i, j, k;
 339         int is_seen = 0;
 340         int was_seen = 0;
 341         long lo = (-1L);
 342         long hi = (-1L);
 343         long t = (-1L);
 344         int trimming = 0;
 345         struct visit vbuf;
 346         long *msglist;
 347         int num_msgs = 0;
 348         char vset[SIZ];
 349         char *is_set;   /* actually an array of booleans */
 350         int num_sets;
 351         int s;
 352         char setstr[SIZ], lostr[SIZ], histr[SIZ];
 353         size_t tmp;
 354
 355         /* Don't bother doing *anything* if we were passed a list of zero messages */
 356         if (num_target_msgnums < 1) {
 357                 return;
 358         }
 359
 360         CtdlLogPrintf(CTDL_DEBUG, "CtdlSetSeen(%d msgs starting with %ld, %d, %d)\n",
 361                 num_target_msgnums, target_msgnums[0],
 362                 target_setting, which_set);
 363
 364         /* Learn about the user and room in question */
 365         CtdlGetRelationship(&vbuf,
 366                 ((which_user != NULL) ? which_user : &CC->user),
 367                 ((which_room != NULL) ? which_room : &CC->room)
 368         );
 369
 370         /* Load the message list */
 371         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 372         if (cdbfr != NULL) {
 373                 msglist = (long *) cdbfr->ptr;
 374                 cdbfr->ptr = NULL;      /* CtdlSetSeen() now owns this memory */
 375                 num_msgs = cdbfr->len / sizeof(long);
 376                 cdb_free(cdbfr);
 377         } else {
 378                 return; /* No messages at all?  No further action. */
 379         }
 380
 381         is_set = malloc(num_msgs * sizeof(char));
 382         memset(is_set, 0, (num_msgs * sizeof(char)) );
 383
 384         /* Decide which message set we're manipulating */
 385         switch(which_set) {
 386                 case ctdlsetseen_seen:
 387                         safestrncpy(vset, vbuf.v_seen, sizeof vset);
 388                         break;
 389                 case ctdlsetseen_answered:
 390                         safestrncpy(vset, vbuf.v_answered, sizeof vset);
 391                         break;
 392         }
 393
 394         /* CtdlLogPrintf(CTDL_DEBUG, "before optimize: %s\n", vset); */
 395
 396         /* Translate the existing sequence set into an array of booleans */
 397         num_sets = num_tokens(vset, ',');
 398         for (s=0; s<num_sets; ++s) {
 399                 extract_token(setstr, vset, s, ',', sizeof setstr);
 400
 401                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 402                 if (num_tokens(setstr, ':') >= 2) {
 403                         extract_token(histr, setstr, 1, ':', sizeof histr);
 404                         if (!strcmp(histr, "*")) {
 405                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
 406                         }
 407                 }
 408                 else {
 409                         strcpy(histr, lostr);
 410                 }
 411                 lo = atol(lostr);
 412                 hi = atol(histr);
 413
 414                 for (i = 0; i < num_msgs; ++i) {
 415                         if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
 416                                 is_set[i] = 1;
 417                         }
 418                 }
 419         }
 420
 421         /* Now translate the array of booleans back into a sequence set */
 422         strcpy(vset, "");
 423         lo = (-1L);
 424         hi = (-1L);
 425
 426         for (i=0; i<num_msgs; ++i) {
 427
 428                 is_seen = is_set[i];    /* Default to existing setting */
 429
 430                 for (k=0; k<num_target_msgnums; ++k) {
 431                         if (msglist[i] == target_msgnums[k]) {
 432                                 is_seen = target_setting;
 433                         }
 434                 }
 435
 436                 if (is_seen) {
 437                         if (lo < 0L) lo = msglist[i];
 438                         hi = msglist[i];
 439                 }
 440
 441                 if (  ((is_seen == 0) && (was_seen == 1))
 442                    || ((is_seen == 1) && (i == num_msgs-1)) ) {
 443
 444                         /* begin trim-o-matic code */
 445                         j=9;
 446                         trimming = 0;
 447                         while ( (strlen(vset) + 20) > sizeof vset) {
 448                                 remove_token(vset, 0, ',');
 449                                 trimming = 1;
 450                                 if (j--) break; /* loop no more than 9 times */
 451                         }
 452                         if ( (trimming) && (which_set == ctdlsetseen_seen) ) {
 453                                 t = atol(vset);
 454                                 if (t<2) t=2;
 455                                 --t;
 456                                 snprintf(lostr, sizeof lostr,
 457                                         "1:%ld,%s", t, vset);
 458                                 safestrncpy(vset, lostr, sizeof vset);
 459                         }
 460                         /* end trim-o-matic code */
 461
 462                         tmp = strlen(vset);
 463                         if (tmp > 0) {
 464                                 strcat(vset, ",");
 465                                 ++tmp;
 466                         }
 467                         if (lo == hi) {
 468                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
 469                                          "%ld", lo);
 470                         }
 471                         else {
 472                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
 473                                          "%ld:%ld", lo, hi);
 474                         }
 475                         lo = (-1L);
 476                         hi = (-1L);
 477                 }
 478                 was_seen = is_seen;
 479         }
 480
 481         /* Decide which message set we're manipulating */
 482         switch (which_set) {
 483                 case ctdlsetseen_seen:
 484                         safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
 485                         break;
 486                 case ctdlsetseen_answered:
 487                         safestrncpy(vbuf.v_answered, vset,
 488                                                 sizeof vbuf.v_answered);
 489                         break;
 490         }
 491         free(is_set);
 492
 493         /* CtdlLogPrintf(CTDL_DEBUG, " after optimize: %s\n", vset); */
 494         free(msglist);
 495         CtdlSetRelationship(&vbuf,
 496                 ((which_user != NULL) ? which_user : &CC->user),
 497                 ((which_room != NULL) ? which_room : &CC->room)
 498         );
 499 }
 500
 501
 502 /*
 503  * API function to perform an operation for each qualifying message in the
 504  * current room.  (Returns the number of messages processed.)
 505  */
 506 int CtdlForEachMessage(int mode, long ref, char *search_string,
 507                         char *content_type,
 508                         struct CtdlMessage *compare,
 509                         void (*CallBack) (long, void *),
 510                         void *userdata)
 511 {
 512
 513         int a, i, j;
 514         struct visit vbuf;
 515         struct cdbdata *cdbfr;
 516         long *msglist = NULL;
 517         int num_msgs = 0;
 518         int num_processed = 0;
 519         long thismsg;
 520         struct MetaData smi;
 521         struct CtdlMessage *msg = NULL;
 522         int is_seen = 0;
 523         long lastold = 0L;
 524         int printed_lastold = 0;
 525         int num_search_msgs = 0;
 526         long *search_msgs = NULL;
 527         regex_t re;
 528         int need_to_free_re = 0;
 529         regmatch_t pm;
 530
 531         if (content_type) if (!IsEmptyStr(content_type)) {
 532                 regcomp(&re, content_type, 0);
 533                 need_to_free_re = 1;
 534         }
 535
 536         /* Learn about the user and room in question */
 537         getuser(&CC->user, CC->curr_user);
 538         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 539
 540         /* Load the message list */
 541         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 542         if (cdbfr != NULL) {
 543                 msglist = (long *) cdbfr->ptr;
 544                 num_msgs = cdbfr->len / sizeof(long);
 545         } else {
 546                 if (need_to_free_re) regfree(&re);
 547                 return 0;       /* No messages at all?  No further action. */
 548         }
 549
 550
 551         /*
 552          * Now begin the traversal.
 553          */
 554         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
 555
 556                 /* If the caller is looking for a specific MIME type, filter
 557                  * out all messages which are not of the type requested.
 558                  */
 559                 if (content_type != NULL) if (!IsEmptyStr(content_type)) {
 560
 561                         /* This call to GetMetaData() sits inside this loop
 562                          * so that we only do the extra database read per msg
 563                          * if we need to.  Doing the extra read all the time
 564                          * really kills the server.  If we ever need to use
 565                          * metadata for another search criterion, we need to
 566                          * move the read somewhere else -- but still be smart
 567                          * enough to only do the read if the caller has
 568                          * specified something that will need it.
 569                          */
 570                         GetMetaData(&smi, msglist[a]);
 571
 572                         /* if (strcasecmp(smi.meta_content_type, content_type)) { old non-regex way */
 573                         if (regexec(&re, smi.meta_content_type, 1, &pm, 0) != 0) {
 574                                 msglist[a] = 0L;
 575                         }
 576                 }
 577         }
 578
 579         num_msgs = sort_msglist(msglist, num_msgs);
 580
 581         /* If a template was supplied, filter out the messages which
 582          * don't match.  (This could induce some delays!)
 583          */
 584         if (num_msgs > 0) {
 585                 if (compare != NULL) {
 586                         for (a = 0; a < num_msgs; ++a) {
 587                                 msg = CtdlFetchMessage(msglist[a], 1);
 588                                 if (msg != NULL) {
 589                                         if (CtdlMsgCmp(msg, compare)) {
 590                                                 msglist[a] = 0L;
 591                                         }
 592                                         CtdlFreeMessage(msg);
 593                                 }
 594                         }
 595                 }
 596         }
 597
 598         /* If a search string was specified, get a message list from
 599          * the full text index and remove messages which aren't on both
 600          * lists.
 601          *
 602          * How this works:
 603          * Since the lists are sorted and strictly ascending, and the
 604          * output list is guaranteed to be shorter than or equal to the
 605          * input list, we overwrite the bottom of the input list.  This
 606          * eliminates the need to memmove big chunks of the list over and
 607          * over again.
 608          */
 609         if ( (num_msgs > 0) && (mode == MSGS_SEARCH) && (search_string) ) {
 610
 611                 /* Call search module via hook mechanism.
 612                  * NULL means use any search function available.
 613                  * otherwise replace with a char * to name of search routine
 614                  */
 615                 CtdlModuleDoSearch(&num_search_msgs, &search_msgs, search_string, "fulltext");
 616
 617                 if (num_search_msgs > 0) {
 618
 619                         int orig_num_msgs;
 620
 621                         orig_num_msgs = num_msgs;
 622                         num_msgs = 0;
 623                         for (i=0; i<orig_num_msgs; ++i) {
 624                                 for (j=0; j<num_search_msgs; ++j) {
 625                                         if (msglist[i] == search_msgs[j]) {
 626                                                 msglist[num_msgs++] = msglist[i];
 627                                         }
 628                                 }
 629                         }
 630                 }
 631                 else {
 632                         num_msgs = 0;   /* No messages qualify */
 633                 }
 634                 if (search_msgs != NULL) free(search_msgs);
 635
 636                 /* Now that we've purged messages which don't contain the search
 637                  * string, treat a MSGS_SEARCH just like a MSGS_ALL from this
 638                  * point on.
 639                  */
 640                 mode = MSGS_ALL;
 641         }
 642
 643         /*
 644          * Now iterate through the message list, according to the
 645          * criteria supplied by the caller.
 646          */
 647         if (num_msgs > 0)
 648                 for (a = 0; a < num_msgs; ++a) {
 649                         thismsg = msglist[a];
 650                         if (mode == MSGS_ALL) {
 651                                 is_seen = 0;
 652                         }
 653                         else {
 654                                 is_seen = is_msg_in_sequence_set(
 655                                                         vbuf.v_seen, thismsg);
 656                                 if (is_seen) lastold = thismsg;
 657                         }
 658                         if ((thismsg > 0L)
 659                             && (
 660
 661                                        (mode == MSGS_ALL)
 662                                        || ((mode == MSGS_OLD) && (is_seen))
 663                                        || ((mode == MSGS_NEW) && (!is_seen))
 664                                        || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
 665                                    || ((mode == MSGS_FIRST) && (a < ref))
 666                                 || ((mode == MSGS_GT) && (thismsg > ref))
 667                                 || ((mode == MSGS_EQ) && (thismsg == ref))
 668                             )
 669                             ) {
 670                                 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
 671                                         if (CallBack)
 672                                                 CallBack(lastold, userdata);
 673                                         printed_lastold = 1;
 674                                         ++num_processed;
 675                                 }
 676                                 if (CallBack) CallBack(thismsg, userdata);
 677                                 ++num_processed;
 678                         }
 679                 }
 680         cdb_free(cdbfr);        /* Clean up */
 681         if (need_to_free_re) regfree(&re);
 682         return num_processed;
 683 }
 684
 685
 686
 687 /*
 688  * cmd_msgs()  -  get list of message #'s in this room
 689  *              implements the MSGS server command using CtdlForEachMessage()
 690  */
 691 void cmd_msgs(char *cmdbuf)
 692 {
 693         int mode = 0;
 694         char which[16];
 695         char buf[256];
 696         char tfield[256];
 697         char tvalue[256];
 698         int cm_ref = 0;
 699         int i;
 700         int with_template = 0;
 701         struct CtdlMessage *template = NULL;
 702         int with_headers = 0;
 703         char search_string[1024];
 704
 705         extract_token(which, cmdbuf, 0, '|', sizeof which);
 706         cm_ref = extract_int(cmdbuf, 1);
 707         extract_token(search_string, cmdbuf, 1, '|', sizeof search_string);
 708         with_template = extract_int(cmdbuf, 2);
 709         with_headers = extract_int(cmdbuf, 3);
 710
 711         strcat(which, "   ");
 712         if (!strncasecmp(which, "OLD", 3))
 713                 mode = MSGS_OLD;
 714         else if (!strncasecmp(which, "NEW", 3))
 715                 mode = MSGS_NEW;
 716         else if (!strncasecmp(which, "FIRST", 5))
 717                 mode = MSGS_FIRST;
 718         else if (!strncasecmp(which, "LAST", 4))
 719                 mode = MSGS_LAST;
 720         else if (!strncasecmp(which, "GT", 2))
 721                 mode = MSGS_GT;
 722         else if (!strncasecmp(which, "SEARCH", 6))
 723                 mode = MSGS_SEARCH;
 724         else
 725                 mode = MSGS_ALL;
 726
 727         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
 728                 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
 729                 return;
 730         }
 731
 732         if ( (mode == MSGS_SEARCH) && (!config.c_enable_fulltext) ) {
 733                 cprintf("%d Full text index is not enabled on this server.\n",
 734                         ERROR + CMD_NOT_SUPPORTED);
 735                 return;
 736         }
 737
 738         if (with_template) {
 739                 unbuffer_output();
 740                 cprintf("%d Send template then receive message list\n",
 741                         START_CHAT_MODE);
 742                 template = (struct CtdlMessage *)
 743                         malloc(sizeof(struct CtdlMessage));
 744                 memset(template, 0, sizeof(struct CtdlMessage));
 745                 template->cm_magic = CTDLMESSAGE_MAGIC;
 746                 template->cm_anon_type = MES_NORMAL;
 747
 748                 while(client_getln(buf, sizeof buf) >= 0 && strcmp(buf,"000")) {
 749                         extract_token(tfield, buf, 0, '|', sizeof tfield);
 750                         extract_token(tvalue, buf, 1, '|', sizeof tvalue);
 751                         for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
 752                                 if (!strcasecmp(tfield, msgkeys[i])) {
 753                                         template->cm_fields[i] =
 754                                                 strdup(tvalue);
 755                                 }
 756                         }
 757                 }
 758                 buffer_output();
 759         }
 760         else {
 761                 cprintf("%d  \n", LISTING_FOLLOWS);
 762         }
 763
 764         CtdlForEachMessage(mode,
 765                         ( (mode == MSGS_SEARCH) ? 0 : cm_ref ),
 766                         ( (mode == MSGS_SEARCH) ? search_string : NULL ),
 767                         NULL,
 768                         template,
 769                         (with_headers ? headers_listing : simple_listing),
 770                         NULL
 771         );
 772         if (template != NULL) CtdlFreeMessage(template);
 773         cprintf("000\n");
 774 }
 775
 776
 777
 778
 779 /*
 780  * help_subst()  -  support routine for help file viewer
 781  */
 782 void help_subst(char *strbuf, char *source, char *dest)
 783 {
 784         char workbuf[SIZ];
 785         int p;
 786
 787         while (p = pattern2(strbuf, source), (p >= 0)) {
 788                 strcpy(workbuf, &strbuf[p + strlen(source)]);
 789                 strcpy(&strbuf[p], dest);
 790                 strcat(strbuf, workbuf);
 791         }
 792 }
 793
 794
 795 void do_help_subst(char *buffer)
 796 {
 797         char buf2[16];
 798
 799         help_subst(buffer, "^nodename", config.c_nodename);
 800         help_subst(buffer, "^humannode", config.c_humannode);
 801         help_subst(buffer, "^fqdn", config.c_fqdn);
 802         help_subst(buffer, "^username", CC->user.fullname);
 803         snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
 804         help_subst(buffer, "^usernum", buf2);
 805         help_subst(buffer, "^sysadm", config.c_sysadm);
 806         help_subst(buffer, "^variantname", CITADEL);
 807         snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
 808         help_subst(buffer, "^maxsessions", buf2);
 809         help_subst(buffer, "^bbsdir", ctdl_message_dir);
 810 }
 811
 812
 813
 814 /*
 815  * memfmout()  -  Citadel text formatter and paginator.
 816  *           Although the original purpose of this routine was to format
 817  *           text to the reader's screen width, all we're really using it
 818  *           for here is to format text out to 80 columns before sending it
 819  *           to the client.  The client software may reformat it again.
 820  */
 821 void memfmout(
 822         char *mptr,             /* where are we going to get our text from? */
 823         char subst,             /* nonzero if we should do substitutions */
 824         char *nl)               /* string to terminate lines with */
 825 {
 826         int a, b, c;
 827         int real = 0;
 828         int old = 0;
 829         cit_uint8_t ch;
 830         char aaa[140];
 831         char buffer[SIZ];
 832         static int width = 80;
 833
 834         strcpy(aaa, "");
 835         old = 255;
 836         strcpy(buffer, "");
 837         c = 1;                  /* c is the current pos */
 838
 839         do {
 840                 if (subst) {
 841                         while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
 842                                 ch = *mptr++;
 843                                 buffer[strlen(buffer) + 1] = 0;
 844                                 buffer[strlen(buffer)] = ch;
 845                         }
 846
 847                         if (buffer[0] == '^')
 848                                 do_help_subst(buffer);
 849
 850                         buffer[strlen(buffer) + 1] = 0;
 851                         a = buffer[0];
 852                         strcpy(buffer, &buffer[1]);
 853                 } else {
 854                         ch = *mptr++;
 855                 }
 856
 857                 old = real;
 858                 real = ch;
 859
 860                 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10)) {
 861                         ch = 32;
 862                 }
 863                 if (((old == 13) || (old == 10)) && (isspace(real))) {
 864                         cprintf("%s", nl);
 865                         c = 1;
 866                 }
 867                 if (ch > 32) {
 868                         if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
 869                                 cprintf("%s%s", nl, aaa);
 870                                 c = strlen(aaa);
 871                                 aaa[0] = 0;
 872                         }
 873                         b = strlen(aaa);
 874                         aaa[b] = ch;
 875                         aaa[b + 1] = 0;
 876                 }
 877                 if (ch == 32) {
 878                         if ((strlen(aaa) + c) > (width - 5)) {
 879                                 cprintf("%s", nl);
 880                                 c = 1;
 881                         }
 882                         cprintf("%s ", aaa);
 883                         ++c;
 884                         c = c + strlen(aaa);
 885                         strcpy(aaa, "");
 886                 }
 887                 if ((ch == 13) || (ch == 10)) {
 888                         cprintf("%s%s", aaa, nl);
 889                         c = 1;
 890                         strcpy(aaa, "");
 891                 }
 892
 893         } while (ch > 0);
 894
 895         cprintf("%s%s", aaa, nl);
 896 }
 897
 898
 899
 900 /*
 901  * Callback function for mime parser that simply lists the part
 902  */
 903 void list_this_part(char *name, char *filename, char *partnum, char *disp,
 904                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 905                     void *cbuserdata)
 906 {
 907         struct ma_info *ma;
 908
 909         ma = (struct ma_info *)cbuserdata;
 910         if (ma->is_ma == 0) {
 911                 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
 912                         name, filename, partnum, disp, cbtype, (long)length);
 913         }
 914 }
 915
 916 /*
 917  * Callback function for multipart prefix
 918  */
 919 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
 920                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 921                     void *cbuserdata)
 922 {
 923         struct ma_info *ma;
 924
 925         ma = (struct ma_info *)cbuserdata;
 926         if (!strcasecmp(cbtype, "multipart/alternative")) {
 927                 ++ma->is_ma;
 928         }
 929
 930         if (ma->is_ma == 0) {
 931                 cprintf("pref=%s|%s\n", partnum, cbtype);
 932         }
 933 }
 934
 935 /*
 936  * Callback function for multipart sufffix
 937  */
 938 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
 939                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
 940                     void *cbuserdata)
 941 {
 942         struct ma_info *ma;
 943
 944         ma = (struct ma_info *)cbuserdata;
 945         if (ma->is_ma == 0) {
 946                 cprintf("suff=%s|%s\n", partnum, cbtype);
 947         }
 948         if (!strcasecmp(cbtype, "multipart/alternative")) {
 949                 --ma->is_ma;
 950         }
 951 }
 952
 953
 954 /*
 955  * Callback function for mime parser that opens a section for downloading
 956  */
 957 void mime_download(char *name, char *filename, char *partnum, char *disp,
 958                    void *content, char *cbtype, char *cbcharset, size_t length,
 959                    char *encoding, void *cbuserdata)
 960 {
 961
 962         /* Silently go away if there's already a download open... */
 963         if (CC->download_fp != NULL)
 964                 return;
 965
 966         /* ...or if this is not the desired section */
 967         if (strcasecmp(CC->download_desired_section, partnum))
 968                 return;
 969
 970         CC->download_fp = tmpfile();
 971         if (CC->download_fp == NULL)
 972                 return;
 973
 974         fwrite(content, length, 1, CC->download_fp);
 975         fflush(CC->download_fp);
 976         rewind(CC->download_fp);
 977
 978         OpenCmdResult(filename, cbtype);
 979 }
 980
 981
 982
 983 /*
 984  * Callback function for mime parser that outputs a section all at once
 985  */
 986 void mime_spew_section(char *name, char *filename, char *partnum, char *disp,
 987                    void *content, char *cbtype, char *cbcharset, size_t length,
 988                    char *encoding, void *cbuserdata)
 989 {
 990         int *found_it = (int *)cbuserdata;
 991
 992         /* ...or if this is not the desired section */
 993         if (strcasecmp(CC->download_desired_section, partnum))
 994                 return;
 995
 996         *found_it = 1;
 997
 998         cprintf("%d %d\n", BINARY_FOLLOWS, (int)length);
 999         client_write(content, length);
1000 }
1001
1002
1003
1004 /*
1005  * Load a message from disk into memory.
1006  * This is used by CtdlOutputMsg() and other fetch functions.
1007  *
1008  * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
1009  *       using the CtdlMessageFree() function.
1010  */
1011 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
1012 {
1013         struct cdbdata *dmsgtext;
1014         struct CtdlMessage *ret = NULL;
1015         char *mptr;
1016         char *upper_bound;
1017         cit_uint8_t ch;
1018         cit_uint8_t field_header;
1019
1020         CtdlLogPrintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
1021
1022         dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
1023         if (dmsgtext == NULL) {
1024                 return NULL;
1025         }
1026         mptr = dmsgtext->ptr;
1027         upper_bound = mptr + dmsgtext->len;
1028
1029         /* Parse the three bytes that begin EVERY message on disk.
1030          * The first is always 0xFF, the on-disk magic number.
1031          * The second is the anonymous/public type byte.
1032          * The third is the format type byte (vari, fixed, or MIME).
1033          */
1034         ch = *mptr++;
1035         if (ch != 255) {
1036                 CtdlLogPrintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
1037                 cdb_free(dmsgtext);
1038                 return NULL;
1039         }
1040         ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1041         memset(ret, 0, sizeof(struct CtdlMessage));
1042
1043         ret->cm_magic = CTDLMESSAGE_MAGIC;
1044         ret->cm_anon_type = *mptr++;    /* Anon type byte */
1045         ret->cm_format_type = *mptr++;  /* Format type byte */
1046
1047         /*
1048          * The rest is zero or more arbitrary fields.  Load them in.
1049          * We're done when we encounter either a zero-length field or
1050          * have just processed the 'M' (message text) field.
1051          */
1052         do {
1053                 if (mptr >= upper_bound) {
1054                         break;
1055                 }
1056                 field_header = *mptr++;
1057                 ret->cm_fields[field_header] = strdup(mptr);
1058
1059                 while (*mptr++ != 0);   /* advance to next field */
1060
1061         } while ((mptr < upper_bound) && (field_header != 'M'));
1062
1063         cdb_free(dmsgtext);
1064
1065         /* Always make sure there's something in the msg text field.  If
1066          * it's NULL, the message text is most likely stored separately,
1067          * so go ahead and fetch that.  Failing that, just set a dummy
1068          * body so other code doesn't barf.
1069          */
1070         if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
1071                 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
1072                 if (dmsgtext != NULL) {
1073                         ret->cm_fields['M'] = strdup(dmsgtext->ptr);
1074                         cdb_free(dmsgtext);
1075                 }
1076         }
1077         if (ret->cm_fields['M'] == NULL) {
1078                 ret->cm_fields['M'] = strdup("\r\n\r\n (no text)\r\n");
1079         }
1080
1081         /* Perform "before read" hooks (aborting if any return nonzero) */
1082         if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
1083                 CtdlFreeMessage(ret);
1084                 return NULL;
1085         }
1086
1087         return (ret);
1088 }
1089
1090
1091 /*
1092  * Returns 1 if the supplied pointer points to a valid Citadel message.
1093  * If the pointer is NULL or the magic number check fails, returns 0.
1094  */
1095 int is_valid_message(struct CtdlMessage *msg) {
1096         if (msg == NULL)
1097                 return 0;
1098         if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1099                 CtdlLogPrintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1100                 return 0;
1101         }
1102         return 1;
1103 }
1104
1105
1106 /*
1107  * 'Destructor' for struct CtdlMessage
1108  */
1109 void CtdlFreeMessage(struct CtdlMessage *msg)
1110 {
1111         int i;
1112
1113         if (is_valid_message(msg) == 0)
1114         {
1115                 if (msg != NULL) free (msg);
1116                 return;
1117         }
1118
1119         for (i = 0; i < 256; ++i)
1120                 if (msg->cm_fields[i] != NULL) {
1121                         free(msg->cm_fields[i]);
1122                 }
1123
1124         msg->cm_magic = 0;      /* just in case */
1125         free(msg);
1126 }
1127
1128
1129 /*
1130  * Pre callback function for multipart/alternative
1131  *
1132  * NOTE: this differs from the standard behavior for a reason.  Normally when
1133  *       displaying multipart/alternative you want to show the _last_ usable
1134  *       format in the message.  Here we show the _first_ one, because it's
1135  *       usually text/plain.  Since this set of functions is designed for text
1136  *       output to non-MIME-aware clients, this is the desired behavior.
1137  *
1138  */
1139 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1140                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1141                 void *cbuserdata)
1142 {
1143         struct ma_info *ma;
1144
1145         ma = (struct ma_info *)cbuserdata;
1146         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
1147         if (!strcasecmp(cbtype, "multipart/alternative")) {
1148                 ++ma->is_ma;
1149                 ma->did_print = 0;
1150         }
1151         if (!strcasecmp(cbtype, "message/rfc822")) {
1152                 ++ma->freeze;
1153         }
1154 }
1155
1156 /*
1157  * Post callback function for multipart/alternative
1158  */
1159 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1160                 void *content, char *cbtype, char *cbcharset, size_t length,
1161                 char *encoding, void *cbuserdata)
1162 {
1163         struct ma_info *ma;
1164
1165         ma = (struct ma_info *)cbuserdata;
1166         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
1167         if (!strcasecmp(cbtype, "multipart/alternative")) {
1168                 --ma->is_ma;
1169                 ma->did_print = 0;
1170         }
1171         if (!strcasecmp(cbtype, "message/rfc822")) {
1172                 --ma->freeze;
1173         }
1174 }
1175
1176 /*
1177  * Inline callback function for mime parser that wants to display text
1178  */
1179 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1180                 void *content, char *cbtype, char *cbcharset, size_t length,
1181                 char *encoding, void *cbuserdata)
1182 {
1183         char *ptr;
1184         char *wptr;
1185         size_t wlen;
1186         struct ma_info *ma;
1187
1188         ma = (struct ma_info *)cbuserdata;
1189
1190         CtdlLogPrintf(CTDL_DEBUG,
1191                 "fixed_output() part %s: %s (%s) (%ld bytes)\n",
1192                 partnum, filename, cbtype, (long)length);
1193
1194         /*
1195          * If we're in the middle of a multipart/alternative scope and
1196          * we've already printed another section, skip this one.
1197          */
1198         if ( (ma->is_ma) && (ma->did_print) ) {
1199                 CtdlLogPrintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1200                 return;
1201         }
1202         ma->did_print = 1;
1203
1204         if ( (!strcasecmp(cbtype, "text/plain"))
1205            || (IsEmptyStr(cbtype)) ) {
1206                 wptr = content;
1207                 if (length > 0) {
1208                         client_write(wptr, length);
1209                         if (wptr[length-1] != '\n') {
1210                                 cprintf("\n");
1211                         }
1212                 }
1213                 return;
1214         }
1215
1216         if (!strcasecmp(cbtype, "text/html")) {
1217                 ptr = html_to_ascii(content, length, 80, 0);
1218                 wlen = strlen(ptr);
1219                 client_write(ptr, wlen);
1220                 if (ptr[wlen-1] != '\n') {
1221                         cprintf("\n");
1222                 }
1223                 free(ptr);
1224                 return;
1225         }
1226
1227         if (ma->use_fo_hooks) {
1228                 if (PerformFixedOutputHooks(cbtype, content, length)) {
1229                 /* above function returns nonzero if it handled the part */
1230                         return;
1231                 }
1232         }
1233
1234         if (strncasecmp(cbtype, "multipart/", 10)) {
1235                 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1236                         partnum, filename, cbtype, (long)length);
1237                 return;
1238         }
1239 }
1240
1241 /*
1242  * The client is elegant and sophisticated and wants to be choosy about
1243  * MIME content types, so figure out which multipart/alternative part
1244  * we're going to send.
1245  *
1246  * We use a system of weights.  When we find a part that matches one of the
1247  * MIME types we've declared as preferential, we can store it in ma->chosen_part
1248  * and then set ma->chosen_pref to that MIME type's position in our preference
1249  * list.  If we then hit another match, we only replace the first match if
1250  * the preference value is lower.
1251  */
1252 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1253                 void *content, char *cbtype, char *cbcharset, size_t length,
1254                 char *encoding, void *cbuserdata)
1255 {
1256         char buf[1024];
1257         int i;
1258         struct ma_info *ma;
1259
1260         ma = (struct ma_info *)cbuserdata;
1261
1262         // NOTE: REMOVING THIS CONDITIONAL FIXES BUG 220
1263         //       http://bugzilla.citadel.org/show_bug.cgi?id=220
1264         // I don't know if there are any side effects!  Please TEST TEST TEST
1265         //if (ma->is_ma > 0) {
1266
1267         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1268                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1269                 if ( (!strcasecmp(buf, cbtype)) && (!ma->freeze) ) {
1270                         if (i < ma->chosen_pref) {
1271                                 CtdlLogPrintf(CTDL_DEBUG, "Setting chosen part: <%s>\n", partnum);
1272                                 safestrncpy(ma->chosen_part, partnum, sizeof ma->chosen_part);
1273                                 ma->chosen_pref = i;
1274                         }
1275                 }
1276         }
1277 }
1278
1279 /*
1280  * Now that we've chosen our preferred part, output it.
1281  */
1282 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1283                 void *content, char *cbtype, char *cbcharset, size_t length,
1284                 char *encoding, void *cbuserdata)
1285 {
1286         int i;
1287         char buf[128];
1288         int add_newline = 0;
1289         char *text_content;
1290         struct ma_info *ma;
1291
1292         ma = (struct ma_info *)cbuserdata;
1293
1294         /* This is not the MIME part you're looking for... */
1295         if (strcasecmp(partnum, ma->chosen_part)) return;
1296
1297         /* If the content-type of this part is in our preferred formats
1298          * list, we can simply output it verbatim.
1299          */
1300         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1301                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1302                 if (!strcasecmp(buf, cbtype)) {
1303                         /* Yeah!  Go!  W00t!! */
1304
1305                         text_content = (char *)content;
1306                         if (text_content[length-1] != '\n') {
1307                                 ++add_newline;
1308                         }
1309                         cprintf("Content-type: %s", cbtype);
1310                         if (!IsEmptyStr(cbcharset)) {
1311                                 cprintf("; charset=%s", cbcharset);
1312                         }
1313                         cprintf("\nContent-length: %d\n",
1314                                 (int)(length + add_newline) );
1315                         if (!IsEmptyStr(encoding)) {
1316                                 cprintf("Content-transfer-encoding: %s\n", encoding);
1317                         }
1318                         else {
1319                                 cprintf("Content-transfer-encoding: 7bit\n");
1320                         }
1321                         cprintf("X-Citadel-MSG4-Partnum: %s\n", partnum);
1322                         cprintf("\n");
1323                         client_write(content, length);
1324                         if (add_newline) cprintf("\n");
1325                         return;
1326                 }
1327         }
1328
1329         /* No translations required or possible: output as text/plain */
1330         cprintf("Content-type: text/plain\n\n");
1331         fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1332                         length, encoding, cbuserdata);
1333 }
1334
1335
1336 struct encapmsg {
1337         char desired_section[64];
1338         char *msg;
1339         size_t msglen;
1340 };
1341
1342
1343 /*
1344  * Callback function for
1345  */
1346 void extract_encapsulated_message(char *name, char *filename, char *partnum, char *disp,
1347                    void *content, char *cbtype, char *cbcharset, size_t length,
1348                    char *encoding, void *cbuserdata)
1349 {
1350         struct encapmsg *encap;
1351
1352         encap = (struct encapmsg *)cbuserdata;
1353
1354         /* Only proceed if this is the desired section... */
1355         if (!strcasecmp(encap->desired_section, partnum)) {
1356                 encap->msglen = length;
1357                 encap->msg = malloc(length + 2);
1358                 memcpy(encap->msg, content, length);
1359                 return;
1360         }
1361
1362 }
1363
1364
1365
1366
1367 /*
1368  * Get a message off disk.  (returns om_* values found in msgbase.h)
1369  *
1370  */
1371 int CtdlOutputMsg(long msg_num,         /* message number (local) to fetch */
1372                   int mode,             /* how would you like that message? */
1373                   int headers_only,     /* eschew the message body? */
1374                   int do_proto,         /* do Citadel protocol responses? */
1375                   int crlf,             /* Use CRLF newlines instead of LF? */
1376                   char *section,        /* NULL or a message/rfc822 section */
1377                   int flags             /* should the bessage be exported clean? */
1378 ) {
1379         struct CtdlMessage *TheMessage = NULL;
1380         int retcode = om_no_such_msg;
1381         struct encapmsg encap;
1382
1383         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n",
1384                 msg_num, mode,
1385                 (section ? section : "<>")
1386         );
1387
1388         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1389                 if (do_proto) cprintf("%d Not logged in.\n",
1390                         ERROR + NOT_LOGGED_IN);
1391                 return(om_not_logged_in);
1392         }
1393
1394         /* FIXME: check message id against msglist for this room */
1395
1396         /*
1397          * Fetch the message from disk.  If we're in any sort of headers
1398          * only mode, request that we don't even bother loading the body
1399          * into memory.
1400          */
1401         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1402                 TheMessage = CtdlFetchMessage(msg_num, 0);
1403         }
1404         else {
1405                 TheMessage = CtdlFetchMessage(msg_num, 1);
1406         }
1407
1408         if (TheMessage == NULL) {
1409                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1410                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1411                 return(om_no_such_msg);
1412         }
1413
1414         /* Here is the weird form of this command, to process only an
1415          * encapsulated message/rfc822 section.
1416          */
1417         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1418                 memset(&encap, 0, sizeof encap);
1419                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1420                 mime_parser(TheMessage->cm_fields['M'],
1421                         NULL,
1422                         *extract_encapsulated_message,
1423                         NULL, NULL, (void *)&encap, 0
1424                 );
1425                 CtdlFreeMessage(TheMessage);
1426                 TheMessage = NULL;
1427
1428                 if (encap.msg) {
1429                         encap.msg[encap.msglen] = 0;
1430                         TheMessage = convert_internet_message(encap.msg);
1431                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1432
1433                         /* Now we let it fall through to the bottom of this
1434                          * function, because TheMessage now contains the
1435                          * encapsulated message instead of the top-level
1436                          * message.  Isn't that neat?
1437                          */
1438
1439                 }
1440                 else {
1441                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1442                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1443                         retcode = om_no_such_msg;
1444                 }
1445
1446         }
1447
1448         /* Ok, output the message now */
1449         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf, flags);
1450         CtdlFreeMessage(TheMessage);
1451
1452         return(retcode);
1453 }
1454
1455
1456 char *qp_encode_email_addrs(char *source)
1457 {
1458         char user[256], node[256], name[256];
1459         const char headerStr[] = "=?UTF-8?Q?";
1460         char *Encoded;
1461         char *EncodedName;
1462         char *nPtr;
1463         int need_to_encode = 0;
1464         long SourceLen;
1465         long EncodedMaxLen;
1466         long nColons = 0;
1467         long *AddrPtr;
1468         long *AddrUtf8;
1469         long nAddrPtrMax = 50;
1470         long nmax;
1471         int InQuotes = 0;
1472         int i, n;
1473
1474         if (source == NULL) return source;
1475         if (IsEmptyStr(source)) return source;
1476
1477         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1478         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1479         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1480         *AddrPtr = 0;
1481         i = 0;
1482         while (!IsEmptyStr (&source[i])) {
1483                 if (nColons >= nAddrPtrMax){
1484                         long *ptr;
1485
1486                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1487                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1488                         free (AddrPtr), AddrPtr = ptr;
1489
1490                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1491                         memset(&ptr[nAddrPtrMax], 0,
1492                                sizeof (long) * nAddrPtrMax);
1493
1494                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1495                         free (AddrUtf8), AddrUtf8 = ptr;
1496                         nAddrPtrMax *= 2;
1497                 }
1498                 if (((unsigned char) source[i] < 32) ||
1499                     ((unsigned char) source[i] > 126)) {
1500                         need_to_encode = 1;
1501                         AddrUtf8[nColons] = 1;
1502                 }
1503                 if (source[i] == '"')
1504                         InQuotes = !InQuotes;
1505                 if (!InQuotes && source[i] == ',') {
1506                         AddrPtr[nColons] = i;
1507                         nColons++;
1508                 }
1509                 i++;
1510         }
1511         if (need_to_encode == 0) {
1512                 free(AddrPtr);
1513                 free(AddrUtf8);
1514                 return source;
1515         }
1516
1517         SourceLen = i;
1518         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1519         Encoded = (char*) malloc (EncodedMaxLen);
1520
1521         for (i = 0; i < nColons; i++)
1522                 source[AddrPtr[i]++] = '\0';
1523
1524         nPtr = Encoded;
1525         *nPtr = '\0';
1526         for (i = 0; i < nColons && nPtr != NULL; i++) {
1527                 nmax = EncodedMaxLen - (nPtr - Encoded);
1528                 if (AddrUtf8[i]) {
1529                         process_rfc822_addr(&source[AddrPtr[i]],
1530                                             user,
1531                                             node,
1532                                             name);
1533                         /* TODO: libIDN here ! */
1534                         if (IsEmptyStr(name)) {
1535                                 n = snprintf(nPtr, nmax,
1536                                              (i==0)?"%s@%s" : ",%s@%s",
1537                                              user, node);
1538                         }
1539                         else {
1540                                 EncodedName = rfc2047encode(name, strlen(name));
1541                                 n = snprintf(nPtr, nmax,
1542                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1543                                              EncodedName, user, node);
1544                                 free(EncodedName);
1545                         }
1546                 }
1547                 else {
1548                         n = snprintf(nPtr, nmax,
1549                                      (i==0)?"%s" : ",%s",
1550                                      &source[AddrPtr[i]]);
1551                 }
1552                 if (n > 0 )
1553                         nPtr += n;
1554                 else {
1555                         char *ptr, *nnPtr;
1556                         ptr = (char*) malloc(EncodedMaxLen * 2);
1557                         memcpy(ptr, Encoded, EncodedMaxLen);
1558                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1559                         free(Encoded), Encoded = ptr;
1560                         EncodedMaxLen *= 2;
1561                         i--; /* do it once more with properly lengthened buffer */
1562                 }
1563         }
1564         for (i = 0; i < nColons; i++)
1565                 source[--AddrPtr[i]] = ',';
1566         free(AddrUtf8);
1567         free(AddrPtr);
1568         return Encoded;
1569 }
1570
1571
1572 /*
1573  * Get a message off disk.  (returns om_* values found in msgbase.h)
1574  */
1575 int CtdlOutputPreLoadedMsg(
1576                 struct CtdlMessage *TheMessage,
1577                 int mode,               /* how would you like that message? */
1578                 int headers_only,       /* eschew the message body? */
1579                 int do_proto,           /* do Citadel protocol responses? */
1580                 int crlf,               /* Use CRLF newlines instead of LF? */
1581                 int flags               /* should the bessage be exported clean? */
1582 ) {
1583         int i, j, k;
1584         char buf[SIZ];
1585         cit_uint8_t ch, prev_ch;
1586         char allkeys[30];
1587         char display_name[256];
1588         char *mptr, *mpptr;
1589         char *nl;       /* newline string */
1590         int suppress_f = 0;
1591         int subject_found = 0;
1592         struct ma_info ma;
1593
1594         /* Buffers needed for RFC822 translation.  These are all filled
1595          * using functions that are bounds-checked, and therefore we can
1596          * make them substantially smaller than SIZ.
1597          */
1598         char suser[100];
1599         char luser[100];
1600         char fuser[100];
1601         char snode[100];
1602         char lnode[100];
1603         char mid[100];
1604         char datestamp[100];
1605
1606         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1607                 ((TheMessage == NULL) ? "NULL" : "not null"),
1608                 mode, headers_only, do_proto, crlf);
1609
1610         strcpy(mid, "unknown");
1611         nl = (crlf ? "\r\n" : "\n");
1612
1613         if (!is_valid_message(TheMessage)) {
1614                 CtdlLogPrintf(CTDL_ERR,
1615                         "ERROR: invalid preloaded message for output\n");
1616                 cit_backtrace ();
1617                 return(om_no_such_msg);
1618         }
1619
1620         /* Are we downloading a MIME component? */
1621         if (mode == MT_DOWNLOAD) {
1622                 if (TheMessage->cm_format_type != FMT_RFC822) {
1623                         if (do_proto)
1624                                 cprintf("%d This is not a MIME message.\n",
1625                                 ERROR + ILLEGAL_VALUE);
1626                 } else if (CC->download_fp != NULL) {
1627                         if (do_proto) cprintf(
1628                                 "%d You already have a download open.\n",
1629                                 ERROR + RESOURCE_BUSY);
1630                 } else {
1631                         /* Parse the message text component */
1632                         mptr = TheMessage->cm_fields['M'];
1633                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1634                         /* If there's no file open by this time, the requested
1635                          * section wasn't found, so print an error
1636                          */
1637                         if (CC->download_fp == NULL) {
1638                                 if (do_proto) cprintf(
1639                                         "%d Section %s not found.\n",
1640                                         ERROR + FILE_NOT_FOUND,
1641                                         CC->download_desired_section);
1642                         }
1643                 }
1644                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1645         }
1646
1647         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1648          * in a single server operation instead of opening a download file.
1649          */
1650         if (mode == MT_SPEW_SECTION) {
1651                 if (TheMessage->cm_format_type != FMT_RFC822) {
1652                         if (do_proto)
1653                                 cprintf("%d This is not a MIME message.\n",
1654                                 ERROR + ILLEGAL_VALUE);
1655                 } else {
1656                         /* Parse the message text component */
1657                         int found_it = 0;
1658
1659                         mptr = TheMessage->cm_fields['M'];
1660                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1661                         /* If section wasn't found, print an error
1662                          */
1663                         if (!found_it) {
1664                                 if (do_proto) cprintf(
1665                                         "%d Section %s not found.\n",
1666                                         ERROR + FILE_NOT_FOUND,
1667                                         CC->download_desired_section);
1668                         }
1669                 }
1670                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1671         }
1672
1673         /* now for the user-mode message reading loops */
1674         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1675
1676         /* Does the caller want to skip the headers? */
1677         if (headers_only == HEADERS_NONE) goto START_TEXT;
1678
1679         /* Tell the client which format type we're using. */
1680         if ( (mode == MT_CITADEL) && (do_proto) ) {
1681                 cprintf("type=%d\n", TheMessage->cm_format_type);
1682         }
1683
1684         /* nhdr=yes means that we're only displaying headers, no body */
1685         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1686            && (mode == MT_CITADEL)
1687            && (do_proto)
1688            ) {
1689                 cprintf("nhdr=yes\n");
1690         }
1691
1692         /* begin header processing loop for Citadel message format */
1693
1694         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1695
1696                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1697                 if (TheMessage->cm_fields['A']) {
1698                         strcpy(buf, TheMessage->cm_fields['A']);
1699                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1700                                 safestrncpy(display_name, "****", sizeof display_name);
1701                         }
1702                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1703                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1704                         }
1705                         else {
1706                                 safestrncpy(display_name, buf, sizeof display_name);
1707                         }
1708                         if ((is_room_aide())
1709                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1710                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1711                                 size_t tmp = strlen(display_name);
1712                                 snprintf(&display_name[tmp],
1713                                          sizeof display_name - tmp,
1714                                          " [%s]", buf);
1715                         }
1716                 }
1717
1718                 /* Don't show Internet address for users on the
1719                  * local Citadel network.
1720                  */
1721                 suppress_f = 0;
1722                 if (TheMessage->cm_fields['N'] != NULL)
1723                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1724                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1725                         suppress_f = 1;
1726                 }
1727
1728                 /* Now spew the header fields in the order we like them. */
1729                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1730                 for (i=0; i<strlen(allkeys); ++i) {
1731                         k = (int) allkeys[i];
1732                         if (k != 'M') {
1733                                 if ( (TheMessage->cm_fields[k] != NULL)
1734                                    && (msgkeys[k] != NULL) ) {
1735                                         if (k == 'A') {
1736                                                 if (do_proto) cprintf("%s=%s\n",
1737                                                         msgkeys[k],
1738                                                         display_name);
1739                                         }
1740                                         else if ((k == 'F') && (suppress_f)) {
1741                                                 /* do nothing */
1742                                         }
1743                                         /* Masquerade display name if needed */
1744                                         else {
1745                                                 if (do_proto) cprintf("%s=%s\n",
1746                                                         msgkeys[k],
1747                                                         TheMessage->cm_fields[k]
1748                                         );
1749                                         }
1750                                 }
1751                         }
1752                 }
1753
1754         }
1755
1756         /* begin header processing loop for RFC822 transfer format */
1757
1758         strcpy(suser, "");
1759         strcpy(luser, "");
1760         strcpy(fuser, "");
1761         strcpy(snode, NODENAME);
1762         strcpy(lnode, HUMANNODE);
1763         if (mode == MT_RFC822) {
1764                 for (i = 0; i < 256; ++i) {
1765                         if (TheMessage->cm_fields[i]) {
1766                                 mptr = mpptr = TheMessage->cm_fields[i];
1767
1768                                 if (i == 'A') {
1769                                         safestrncpy(luser, mptr, sizeof luser);
1770                                         safestrncpy(suser, mptr, sizeof suser);
1771                                 }
1772                                 else if (i == 'Y') {
1773                                         if ((flags & QP_EADDR) != 0)
1774                                                 mptr = qp_encode_email_addrs(mptr);
1775                                         cprintf("CC: %s%s", mptr, nl);
1776                                 }
1777                                 else if (i == 'P') {
1778                                         cprintf("Return-Path: %s%s", mptr, nl);
1779                                 }
1780                                 else if (i == 'L') {
1781                                         cprintf("List-ID: %s%s", mptr, nl);
1782                                 }
1783                                 else if (i == 'V') {
1784                                         if ((flags & QP_EADDR) != 0)
1785                                                 mptr = qp_encode_email_addrs(mptr);
1786                                         cprintf("Envelope-To: %s%s", mptr, nl);
1787                                 }
1788                                 else if (i == 'U') {
1789                                         cprintf("Subject: %s%s", mptr, nl);
1790                                         subject_found = 1;
1791                                 }
1792                                 else if (i == 'I')
1793                                         safestrncpy(mid, mptr, sizeof mid);
1794                                 else if (i == 'H')
1795                                         safestrncpy(lnode, mptr, sizeof lnode);
1796                                 else if (i == 'F')
1797                                         safestrncpy(fuser, mptr, sizeof fuser);
1798                                 /* else if (i == 'O')
1799                                         cprintf("X-Citadel-Room: %s%s",
1800                                                 mptr, nl); */
1801                                 else if (i == 'N')
1802                                         safestrncpy(snode, mptr, sizeof snode);
1803                                 else if (i == 'R')
1804                                 {
1805                                         if (haschar(mptr, '@') == 0)
1806                                         {
1807                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1808                                         }
1809                                         else
1810                                         {
1811                                                 if ((flags & QP_EADDR) != 0)
1812                                                         mptr = qp_encode_email_addrs(mptr);
1813                                                 cprintf("To: %s%s", mptr, nl);
1814                                         }
1815                                 }
1816                                 else if (i == 'T') {
1817                                         datestring(datestamp, sizeof datestamp,
1818                                                 atol(mptr), DATESTRING_RFC822);
1819                                         cprintf("Date: %s%s", datestamp, nl);
1820                                 }
1821                                 else if (i == 'W') {
1822                                         cprintf("References: ");
1823                                         k = num_tokens(mptr, '|');
1824                                         for (j=0; j<k; ++j) {
1825                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1826                                                 cprintf("<%s>", buf);
1827                                                 if (j == (k-1)) {
1828                                                         cprintf("%s", nl);
1829                                                 }
1830                                                 else {
1831                                                         cprintf(" ");
1832                                                 }
1833                                         }
1834                                 }
1835                                 if (mptr != mpptr)
1836                                         free (mptr);
1837                         }
1838                 }
1839                 if (subject_found == 0) {
1840                         cprintf("Subject: (no subject)%s", nl);
1841                 }
1842         }
1843
1844         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1845                 suser[i] = tolower(suser[i]);
1846                 if (!isalnum(suser[i])) suser[i]='_';
1847         }
1848
1849         if (mode == MT_RFC822) {
1850                 if (!strcasecmp(snode, NODENAME)) {
1851                         safestrncpy(snode, FQDN, sizeof snode);
1852                 }
1853
1854                 /* Construct a fun message id */
1855                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1856                 if (strchr(mid, '@')==NULL) {
1857                         cprintf("@%s", snode);
1858                 }
1859                 cprintf(">%s", nl);
1860
1861                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1862                         cprintf("From: \"----\" <x@x.org>%s", nl);
1863                 }
1864                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1865                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1866                 }
1867                 else if (!IsEmptyStr(fuser)) {
1868                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1869                 }
1870                 else {
1871                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1872                 }
1873
1874                 cprintf("Organization: %s%s", lnode, nl);
1875
1876                 /* Blank line signifying RFC822 end-of-headers */
1877                 if (TheMessage->cm_format_type != FMT_RFC822) {
1878                         cprintf("%s", nl);
1879                 }
1880         }
1881
1882         /* end header processing loop ... at this point, we're in the text */
1883 START_TEXT:
1884         if (headers_only == HEADERS_FAST) goto DONE;
1885         mptr = TheMessage->cm_fields['M'];
1886
1887         /* Tell the client about the MIME parts in this message */
1888         if (TheMessage->cm_format_type == FMT_RFC822) {
1889                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1890                         memset(&ma, 0, sizeof(struct ma_info));
1891                         mime_parser(mptr, NULL,
1892                                 (do_proto ? *list_this_part : NULL),
1893                                 (do_proto ? *list_this_pref : NULL),
1894                                 (do_proto ? *list_this_suff : NULL),
1895                                 (void *)&ma, 0);
1896                 }
1897                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1898                         char *start_of_text = NULL;
1899                         start_of_text = strstr(mptr, "\n\r\n");
1900                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1901                         if (start_of_text == NULL) start_of_text = mptr;
1902                         ++start_of_text;
1903                         start_of_text = strstr(start_of_text, "\n");
1904                         ++start_of_text;
1905
1906                         char outbuf[1024];
1907                         int outlen = 0;
1908                         int nllen = strlen(nl);
1909                         prev_ch = 0;
1910                         while (ch=*mptr, ch!=0) {
1911                                 if (ch==13) {
1912                                         /* do nothing */
1913                                 }
1914                                 else {
1915                                         if (
1916                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1917                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1918                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1919                                         ) {
1920                                                 if (ch == 10) {
1921                                                         sprintf(&outbuf[outlen], "%s", nl);
1922                                                         outlen += nllen;
1923                                                 }
1924                                                 else {
1925                                                         outbuf[outlen++] = ch;
1926                                                 }
1927                                         }
1928                                 }
1929                                 if (flags & ESC_DOT)
1930                                 {
1931                                         if ((prev_ch == 10) && (ch == '.') && ((*(mptr+1) == 13) || (*(mptr+1) == 10)))
1932                                         {
1933                                                 outbuf[outlen++] = '.';
1934                                         }
1935                                 }
1936                                 prev_ch = ch;
1937                                 ++mptr;
1938                                 if (outlen > 1000) {
1939                                         client_write(outbuf, outlen);
1940                                         outlen = 0;
1941                                 }
1942                         }
1943                         if (outlen > 0) {
1944                                 client_write(outbuf, outlen);
1945                                 outlen = 0;
1946                         }
1947
1948                         goto DONE;
1949                 }
1950         }
1951
1952         if (headers_only == HEADERS_ONLY) {
1953                 goto DONE;
1954         }
1955
1956         /* signify start of msg text */
1957         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1958                 if (do_proto) cprintf("text\n");
1959         }
1960
1961         /* If the format type on disk is 1 (fixed-format), then we want
1962          * everything to be output completely literally ... regardless of
1963          * what message transfer format is in use.
1964          */
1965         if (TheMessage->cm_format_type == FMT_FIXED) {
1966                 int buflen;
1967                 if (mode == MT_MIME) {
1968                         cprintf("Content-type: text/plain\n\n");
1969                 }
1970                 *buf = '\0';
1971                 buflen = 0;
1972                 while (ch = *mptr++, ch > 0) {
1973                         if (ch == 13)
1974                                 ch = 10;
1975                         if ((ch == 10) || (buflen > 250)) {
1976                                 buf[buflen] = '\0';
1977                                 cprintf("%s%s", buf, nl);
1978                                 *buf = '\0';
1979                                 buflen = 0;
1980                         } else {
1981                                 buf[buflen] = ch;
1982                                 buflen++;
1983                         }
1984                 }
1985                 buf[buflen] = '\0';
1986                 if (!IsEmptyStr(buf))
1987                         cprintf("%s%s", buf, nl);
1988         }
1989
1990         /* If the message on disk is format 0 (Citadel vari-format), we
1991          * output using the formatter at 80 columns.  This is the final output
1992          * form if the transfer format is RFC822, but if the transfer format
1993          * is Citadel proprietary, it'll still work, because the indentation
1994          * for new paragraphs is correct and the client will reformat the
1995          * message to the reader's screen width.
1996          */
1997         if (TheMessage->cm_format_type == FMT_CITADEL) {
1998                 if (mode == MT_MIME) {
1999                         cprintf("Content-type: text/x-citadel-variformat\n\n");
2000                 }
2001                 memfmout(mptr, 0, nl);
2002         }
2003
2004         /* If the message on disk is format 4 (MIME), we've gotta hand it
2005          * off to the MIME parser.  The client has already been told that
2006          * this message is format 1 (fixed format), so the callback function
2007          * we use will display those parts as-is.
2008          */
2009         if (TheMessage->cm_format_type == FMT_RFC822) {
2010                 memset(&ma, 0, sizeof(struct ma_info));
2011
2012                 if (mode == MT_MIME) {
2013                         ma.use_fo_hooks = 0;
2014                         strcpy(ma.chosen_part, "1");
2015                         ma.chosen_pref = 9999;
2016                         mime_parser(mptr, NULL,
2017                                 *choose_preferred, *fixed_output_pre,
2018                                 *fixed_output_post, (void *)&ma, 0);
2019                         mime_parser(mptr, NULL,
2020                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
2021                 }
2022                 else {
2023                         ma.use_fo_hooks = 1;
2024                         mime_parser(mptr, NULL,
2025                                 *fixed_output, *fixed_output_pre,
2026                                 *fixed_output_post, (void *)&ma, 0);
2027                 }
2028
2029         }
2030
2031 DONE:   /* now we're done */
2032         if (do_proto) cprintf("000\n");
2033         return(om_ok);
2034 }
2035
2036
2037
2038 /*
2039  * display a message (mode 0 - Citadel proprietary)
2040  */
2041 void cmd_msg0(char *cmdbuf)
2042 {
2043         long msgid;
2044         int headers_only = HEADERS_ALL;
2045
2046         msgid = extract_long(cmdbuf, 0);
2047         headers_only = extract_int(cmdbuf, 1);
2048
2049         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL, 0);
2050         return;
2051 }
2052
2053
2054 /*
2055  * display a message (mode 2 - RFC822)
2056  */
2057 void cmd_msg2(char *cmdbuf)
2058 {
2059         long msgid;
2060         int headers_only = HEADERS_ALL;
2061
2062         msgid = extract_long(cmdbuf, 0);
2063         headers_only = extract_int(cmdbuf, 1);
2064
2065         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL, 0);
2066 }
2067
2068
2069
2070 /*
2071  * display a message (mode 3 - IGnet raw format - internal programs only)
2072  */
2073 void cmd_msg3(char *cmdbuf)
2074 {
2075         long msgnum;
2076         struct CtdlMessage *msg = NULL;
2077         struct ser_ret smr;
2078
2079         if (CC->internal_pgm == 0) {
2080                 cprintf("%d This command is for internal programs only.\n",
2081                         ERROR + HIGHER_ACCESS_REQUIRED);
2082                 return;
2083         }
2084
2085         msgnum = extract_long(cmdbuf, 0);
2086         msg = CtdlFetchMessage(msgnum, 1);
2087         if (msg == NULL) {
2088                 cprintf("%d Message %ld not found.\n",
2089                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2090                 return;
2091         }
2092
2093         serialize_message(&smr, msg);
2094         CtdlFreeMessage(msg);
2095
2096         if (smr.len == 0) {
2097                 cprintf("%d Unable to serialize message\n",
2098                         ERROR + INTERNAL_ERROR);
2099                 return;
2100         }
2101
2102         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2103         client_write((char *)smr.ser, (int)smr.len);
2104         free(smr.ser);
2105 }
2106
2107
2108
2109 /*
2110  * Display a message using MIME content types
2111  */
2112 void cmd_msg4(char *cmdbuf)
2113 {
2114         long msgid;
2115         char section[64];
2116
2117         msgid = extract_long(cmdbuf, 0);
2118         extract_token(section, cmdbuf, 1, '|', sizeof section);
2119         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) , 0);
2120 }
2121
2122
2123
2124 /*
2125  * Client tells us its preferred message format(s)
2126  */
2127 void cmd_msgp(char *cmdbuf)
2128 {
2129         if (!strcasecmp(cmdbuf, "dont_decode")) {
2130                 CC->msg4_dont_decode = 1;
2131                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2132         }
2133         else {
2134                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2135                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2136         }
2137 }
2138
2139
2140 /*
2141  * Open a component of a MIME message as a download file
2142  */
2143 void cmd_opna(char *cmdbuf)
2144 {
2145         long msgid;
2146         char desired_section[128];
2147
2148         msgid = extract_long(cmdbuf, 0);
2149         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2150         safestrncpy(CC->download_desired_section, desired_section,
2151                 sizeof CC->download_desired_section);
2152         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL, 0);
2153 }
2154
2155
2156 /*
2157  * Open a component of a MIME message and transmit it all at once
2158  */
2159 void cmd_dlat(char *cmdbuf)
2160 {
2161         long msgid;
2162         char desired_section[128];
2163
2164         msgid = extract_long(cmdbuf, 0);
2165         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2166         safestrncpy(CC->download_desired_section, desired_section,
2167                 sizeof CC->download_desired_section);
2168         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL, 0);
2169 }
2170
2171
2172 /*
2173  * Save one or more message pointers into a specified room
2174  * (Returns 0 for success, nonzero for failure)
2175  * roomname may be NULL to use the current room
2176  *
2177  * Note that the 'supplied_msg' field may be set to NULL, in which case
2178  * the message will be fetched from disk, by number, if we need to perform
2179  * replication checks.  This adds an additional database read, so if the
2180  * caller already has the message in memory then it should be supplied.  (Obviously
2181  * this mode of operation only works if we're saving a single message.)
2182  */
2183 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2184                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2185 {
2186         int i, j, unique;
2187         char hold_rm[ROOMNAMELEN];
2188         struct cdbdata *cdbfr;
2189         int num_msgs;
2190         long *msglist;
2191         long highest_msg = 0L;
2192
2193         long msgid = 0;
2194         struct CtdlMessage *msg = NULL;
2195
2196         long *msgs_to_be_merged = NULL;
2197         int num_msgs_to_be_merged = 0;
2198
2199         CtdlLogPrintf(CTDL_DEBUG,
2200                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2201                 roomname, num_newmsgs, do_repl_check);
2202
2203         strcpy(hold_rm, CC->room.QRname);
2204
2205         /* Sanity checks */
2206         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2207         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2208         if (num_newmsgs > 1) supplied_msg = NULL;
2209
2210         /* Now the regular stuff */
2211         if (lgetroom(&CC->room,
2212            ((roomname != NULL) ? roomname : CC->room.QRname) )
2213            != 0) {
2214                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2215                 return(ERROR + ROOM_NOT_FOUND);
2216         }
2217
2218
2219         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2220         num_msgs_to_be_merged = 0;
2221
2222
2223         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2224         if (cdbfr == NULL) {
2225                 msglist = NULL;
2226                 num_msgs = 0;
2227         } else {
2228                 msglist = (long *) cdbfr->ptr;
2229                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2230                 num_msgs = cdbfr->len / sizeof(long);
2231                 cdb_free(cdbfr);
2232         }
2233
2234
2235         /* Create a list of msgid's which were supplied by the caller, but do
2236          * not already exist in the target room.  It is absolutely taboo to
2237          * have more than one reference to the same message in a room.
2238          */
2239         for (i=0; i<num_newmsgs; ++i) {
2240                 unique = 1;
2241                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2242                         if (msglist[j] == newmsgidlist[i]) {
2243                                 unique = 0;
2244                         }
2245                 }
2246                 if (unique) {
2247                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2248                 }
2249         }
2250
2251         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2252
2253         /*
2254          * Now merge the new messages
2255          */
2256         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2257         if (msglist == NULL) {
2258                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2259         }
2260         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2261         num_msgs += num_msgs_to_be_merged;
2262
2263         /* Sort the message list, so all the msgid's are in order */
2264         num_msgs = sort_msglist(msglist, num_msgs);
2265
2266         /* Determine the highest message number */
2267         highest_msg = msglist[num_msgs - 1];
2268
2269         /* Write it back to disk. */
2270         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2271                   msglist, (int)(num_msgs * sizeof(long)));
2272
2273         /* Free up the memory we used. */
2274         free(msglist);
2275
2276         /* Update the highest-message pointer and unlock the room. */
2277         CC->room.QRhighest = highest_msg;
2278         lputroom(&CC->room);
2279
2280         /* Perform replication checks if necessary */
2281         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2282                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2283
2284                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2285                         msgid = msgs_to_be_merged[i];
2286
2287                         if (supplied_msg != NULL) {
2288                                 msg = supplied_msg;
2289                         }
2290                         else {
2291                                 msg = CtdlFetchMessage(msgid, 0);
2292                         }
2293
2294                         if (msg != NULL) {
2295                                 ReplicationChecks(msg);
2296
2297                                 /* If the message has an Exclusive ID, index that... */
2298                                 if (msg->cm_fields['E'] != NULL) {
2299                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2300                                 }
2301
2302                                 /* Free up the memory we may have allocated */
2303                                 if (msg != supplied_msg) {
2304                                         CtdlFreeMessage(msg);
2305                                 }
2306                         }
2307
2308                 }
2309         }
2310
2311         else {
2312                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2313         }
2314
2315         /* Submit this room for processing by hooks */
2316         PerformRoomHooks(&CC->room);
2317
2318         /* Go back to the room we were in before we wandered here... */
2319         getroom(&CC->room, hold_rm);
2320
2321         /* Bump the reference count for all messages which were merged */
2322         for (i=0; i<num_msgs_to_be_merged; ++i) {
2323                 AdjRefCount(msgs_to_be_merged[i], +1);
2324         }
2325
2326         /* Free up memory... */
2327         if (msgs_to_be_merged != NULL) {
2328                 free(msgs_to_be_merged);
2329         }
2330
2331         /* Return success. */
2332         return (0);
2333 }
2334
2335
2336 /*
2337  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2338  * a single message.
2339  */
2340 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2341                         int do_repl_check, struct CtdlMessage *supplied_msg)
2342 {
2343         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2344 }
2345
2346
2347
2348
2349 /*
2350  * Message base operation to save a new message to the message store
2351  * (returns new message number)
2352  *
2353  * This is the back end for CtdlSubmitMsg() and should not be directly
2354  * called by server-side modules.
2355  *
2356  */
2357 long send_message(struct CtdlMessage *msg) {
2358         long newmsgid;
2359         long retval;
2360         char msgidbuf[256];
2361         struct ser_ret smr;
2362         int is_bigmsg = 0;
2363         char *holdM = NULL;
2364
2365         /* Get a new message number */
2366         newmsgid = get_new_message_number();
2367         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2368
2369         /* Generate an ID if we don't have one already */
2370         if (msg->cm_fields['I']==NULL) {
2371                 msg->cm_fields['I'] = strdup(msgidbuf);
2372         }
2373
2374         /* If the message is big, set its body aside for storage elsewhere */
2375         if (msg->cm_fields['M'] != NULL) {
2376                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2377                         is_bigmsg = 1;
2378                         holdM = msg->cm_fields['M'];
2379                         msg->cm_fields['M'] = NULL;
2380                 }
2381         }
2382
2383         /* Serialize our data structure for storage in the database */
2384         serialize_message(&smr, msg);
2385
2386         if (is_bigmsg) {
2387                 msg->cm_fields['M'] = holdM;
2388         }
2389
2390         if (smr.len == 0) {
2391                 cprintf("%d Unable to serialize message\n",
2392                         ERROR + INTERNAL_ERROR);
2393                 return (-1L);
2394         }
2395
2396         /* Write our little bundle of joy into the message base */
2397         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2398                       smr.ser, smr.len) < 0) {
2399                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2400                 retval = 0L;
2401         } else {
2402                 if (is_bigmsg) {
2403                         cdb_store(CDB_BIGMSGS,
2404                                 &newmsgid,
2405                                 (int)sizeof(long),
2406                                 holdM,
2407                                 (strlen(holdM) + 1)
2408                         );
2409                 }
2410                 retval = newmsgid;
2411         }
2412
2413         /* Free the memory we used for the serialized message */
2414         free(smr.ser);
2415
2416         /* Return the *local* message ID to the caller
2417          * (even if we're storing an incoming network message)
2418          */
2419         return(retval);
2420 }
2421
2422
2423
2424 /*
2425  * Serialize a struct CtdlMessage into the format used on disk and network.
2426  *
2427  * This function loads up a "struct ser_ret" (defined in server.h) which
2428  * contains the length of the serialized message and a pointer to the
2429  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2430  */
2431 void serialize_message(struct ser_ret *ret,             /* return values */
2432                         struct CtdlMessage *msg)        /* unserialized msg */
2433 {
2434         size_t wlen, fieldlen;
2435         int i;
2436         static char *forder = FORDER;
2437
2438         /*
2439          * Check for valid message format
2440          */
2441         if (is_valid_message(msg) == 0) {
2442                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2443                 ret->len = 0;
2444                 ret->ser = NULL;
2445                 return;
2446         }
2447
2448         ret->len = 3;
2449         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2450                 ret->len = ret->len +
2451                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2452
2453         ret->ser = malloc(ret->len);
2454         if (ret->ser == NULL) {
2455                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2456                         (long)ret->len, strerror(errno));
2457                 ret->len = 0;
2458                 ret->ser = NULL;
2459                 return;
2460         }
2461
2462         ret->ser[0] = 0xFF;
2463         ret->ser[1] = msg->cm_anon_type;
2464         ret->ser[2] = msg->cm_format_type;
2465         wlen = 3;
2466
2467         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2468                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2469                 ret->ser[wlen++] = (char)forder[i];
2470                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2471                 wlen = wlen + fieldlen + 1;
2472         }
2473         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2474                 (long)ret->len, (long)wlen);
2475
2476         return;
2477 }
2478
2479
2480 /*
2481  * Serialize a struct CtdlMessage into the format used on disk and network.
2482  *
2483  * This function loads up a "struct ser_ret" (defined in server.h) which
2484  * contains the length of the serialized message and a pointer to the
2485  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2486  */
2487 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2488                   long Siz)                     /* how many chars ? */
2489 {
2490         size_t wlen;
2491         int i;
2492         static char *forder = FORDER;
2493         char *buf;
2494
2495         /*
2496          * Check for valid message format
2497          */
2498         if (is_valid_message(msg) == 0) {
2499                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2500                 return;
2501         }
2502
2503         buf = (char*) malloc (Siz + 1);
2504
2505         wlen = 3;
2506
2507         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2508                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i],
2509                                    msg->cm_fields[(int)forder[i]]);
2510                         client_write (buf, strlen(buf));
2511                 }
2512
2513         return;
2514 }
2515
2516
2517
2518 /*
2519  * Check to see if any messages already exist in the current room which
2520  * carry the same Exclusive ID as this one.  If any are found, delete them.
2521  */
2522 void ReplicationChecks(struct CtdlMessage *msg) {
2523         long old_msgnum = (-1L);
2524
2525         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2526
2527         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2528                 CC->room.QRname);
2529
2530         /* No exclusive id?  Don't do anything. */
2531         if (msg == NULL) return;
2532         if (msg->cm_fields['E'] == NULL) return;
2533         if (IsEmptyStr(msg->cm_fields['E'])) return;
2534         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2535                 msg->cm_fields['E'], CC->room.QRname);*/
2536
2537         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2538         if (old_msgnum > 0L) {
2539                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2540                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2541         }
2542 }
2543
2544
2545
2546 /*
2547  * Save a message to disk and submit it into the delivery system.
2548  */
2549 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2550                    struct recptypes *recps,     /* recipients (if mail) */
2551                    char *force,                 /* force a particular room? */
2552                    int flags                    /* should the bessage be exported clean? */
2553 ) {
2554         char submit_filename[128];
2555         char generated_timestamp[32];
2556         char hold_rm[ROOMNAMELEN];
2557         char actual_rm[ROOMNAMELEN];
2558         char force_room[ROOMNAMELEN];
2559         char content_type[SIZ];                 /* We have to learn this */
2560         char recipient[SIZ];
2561         long newmsgid;
2562         char *mptr = NULL;
2563         struct ctdluser userbuf;
2564         int a, i;
2565         struct MetaData smi;
2566         FILE *network_fp = NULL;
2567         static int seqnum = 1;
2568         struct CtdlMessage *imsg = NULL;
2569         char *instr = NULL;
2570         size_t instr_alloc = 0;
2571         struct ser_ret smr;
2572         char *hold_R, *hold_D;
2573         char *collected_addresses = NULL;
2574         struct addresses_to_be_filed *aptr = NULL;
2575         char *saved_rfc822_version = NULL;
2576         int qualified_for_journaling = 0;
2577         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2578         char bounce_to[1024] = "";
2579
2580         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2581         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2582
2583         /* If this message has no timestamp, we take the liberty of
2584          * giving it one, right now.
2585          */
2586         if (msg->cm_fields['T'] == NULL) {
2587                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2588                 msg->cm_fields['T'] = strdup(generated_timestamp);
2589         }
2590
2591         /* If this message has no path, we generate one.
2592          */
2593         if (msg->cm_fields['P'] == NULL) {
2594                 if (msg->cm_fields['A'] != NULL) {
2595                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2596                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2597                                 if (isspace(msg->cm_fields['P'][a])) {
2598                                         msg->cm_fields['P'][a] = ' ';
2599                                 }
2600                         }
2601                 }
2602                 else {
2603                         msg->cm_fields['P'] = strdup("unknown");
2604                 }
2605         }
2606
2607         if (force == NULL) {
2608                 strcpy(force_room, "");
2609         }
2610         else {
2611                 strcpy(force_room, force);
2612         }
2613
2614         /* Learn about what's inside, because it's what's inside that counts */
2615         if (msg->cm_fields['M'] == NULL) {
2616                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2617                 return(-2);
2618         }
2619
2620         switch (msg->cm_format_type) {
2621         case 0:
2622                 strcpy(content_type, "text/x-citadel-variformat");
2623                 break;
2624         case 1:
2625                 strcpy(content_type, "text/plain");
2626                 break;
2627         case 4:
2628                 strcpy(content_type, "text/plain");
2629                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2630                 if (mptr != NULL) {
2631                         char *aptr;
2632                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2633                         striplt(content_type);
2634                         aptr = content_type;
2635                         while (!IsEmptyStr(aptr)) {
2636                                 if ((*aptr == ';')
2637                                     || (*aptr == ' ')
2638                                     || (*aptr == 13)
2639                                     || (*aptr == 10)) {
2640                                         *aptr = 0;
2641                                 }
2642                                 else aptr++;
2643                         }
2644                 }
2645         }
2646
2647         /* Goto the correct room */
2648         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2649         strcpy(hold_rm, CCC->room.QRname);
2650         strcpy(actual_rm, CCC->room.QRname);
2651         if (recps != NULL) {
2652                 strcpy(actual_rm, SENTITEMS);
2653         }
2654
2655         /* If the user is a twit, move to the twit room for posting */
2656         if (TWITDETECT) {
2657                 if (CCC->user.axlevel == 2) {
2658                         strcpy(hold_rm, actual_rm);
2659                         strcpy(actual_rm, config.c_twitroom);
2660                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2661                 }
2662         }
2663
2664         /* ...or if this message is destined for Aide> then go there. */
2665         if (!IsEmptyStr(force_room)) {
2666                 strcpy(actual_rm, force_room);
2667         }
2668
2669         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2670         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2671                 /* getroom(&CCC->room, actual_rm); */
2672                 usergoto(actual_rm, 0, 1, NULL, NULL);
2673         }
2674
2675         /*
2676          * If this message has no O (room) field, generate one.
2677          */
2678         if (msg->cm_fields['O'] == NULL) {
2679                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2680         }
2681
2682         /* Perform "before save" hooks (aborting if any return nonzero) */
2683         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2684         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2685
2686         /*
2687          * If this message has an Exclusive ID, and the room is replication
2688          * checking enabled, then do replication checks.
2689          */
2690         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2691                 ReplicationChecks(msg);
2692         }
2693
2694         /* Save it to disk */
2695         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2696         newmsgid = send_message(msg);
2697         if (newmsgid <= 0L) return(-5);
2698
2699         /* Write a supplemental message info record.  This doesn't have to
2700          * be a critical section because nobody else knows about this message
2701          * yet.
2702          */
2703         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2704         memset(&smi, 0, sizeof(struct MetaData));
2705         smi.meta_msgnum = newmsgid;
2706         smi.meta_refcount = 0;
2707         safestrncpy(smi.meta_content_type, content_type,
2708                         sizeof smi.meta_content_type);
2709
2710         /*
2711          * Measure how big this message will be when rendered as RFC822.
2712          * We do this for two reasons:
2713          * 1. We need the RFC822 length for the new metadata record, so the
2714          *    POP and IMAP services don't have to calculate message lengths
2715          *    while the user is waiting (multiplied by potentially hundreds
2716          *    or thousands of messages).
2717          * 2. If journaling is enabled, we will need an RFC822 version of the
2718          *    message to attach to the journalized copy.
2719          */
2720         if (CCC->redirect_buffer != NULL) {
2721                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2722                 abort();
2723         }
2724         CCC->redirect_buffer = malloc(SIZ);
2725         CCC->redirect_len = 0;
2726         CCC->redirect_alloc = SIZ;
2727         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
2728         smi.meta_rfc822_length = CCC->redirect_len;
2729         saved_rfc822_version = CCC->redirect_buffer;
2730         CCC->redirect_buffer = NULL;
2731         CCC->redirect_len = 0;
2732         CCC->redirect_alloc = 0;
2733
2734         PutMetaData(&smi);
2735
2736         /* Now figure out where to store the pointers */
2737         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2738
2739         /* If this is being done by the networker delivering a private
2740          * message, we want to BYPASS saving the sender's copy (because there
2741          * is no local sender; it would otherwise go to the Trashcan).
2742          */
2743         if ((!CCC->internal_pgm) || (recps == NULL)) {
2744                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2745                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2746                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2747                 }
2748         }
2749
2750         /* For internet mail, drop a copy in the outbound queue room */
2751         if (recps != NULL)
2752          if (recps->num_internet > 0) {
2753                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2754         }
2755
2756         /* If other rooms are specified, drop them there too. */
2757         if (recps != NULL)
2758          if (recps->num_room > 0)
2759           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2760                 extract_token(recipient, recps->recp_room, i,
2761                                         '|', sizeof recipient);
2762                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2763                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2764         }
2765
2766         /* Bump this user's messages posted counter. */
2767         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2768         lgetuser(&CCC->user, CCC->curr_user);
2769         CCC->user.posted = CCC->user.posted + 1;
2770         lputuser(&CCC->user);
2771
2772         /* Decide where bounces need to be delivered */
2773         if (CCC->logged_in) {
2774                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", CCC->user.fullname, config.c_nodename);
2775         }
2776         else {
2777                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", msg->cm_fields['A'], msg->cm_fields['N']);
2778         }
2779
2780         /* If this is private, local mail, make a copy in the
2781          * recipient's mailbox and bump the reference count.
2782          */
2783         if (recps != NULL)
2784          if (recps->num_local > 0)
2785           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2786                 extract_token(recipient, recps->recp_local, i,
2787                                         '|', sizeof recipient);
2788                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2789                         recipient);
2790                 if (getuser(&userbuf, recipient) == 0) {
2791                         // Add a flag so the Funambol module knows its mail
2792                         msg->cm_fields['W'] = strdup(recipient);
2793                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2794                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2795                         BumpNewMailCounter(userbuf.usernum);
2796                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2797                         /* Generate a instruction message for the Funambol notification
2798                          * server, in the same style as the SMTP queue
2799                          */
2800                            instr_alloc = 1024;
2801                            instr = malloc(instr_alloc);
2802                            snprintf(instr, instr_alloc,
2803                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2804                         "bounceto|%s\n",
2805                         SPOOLMIME, newmsgid, (long)time(NULL),
2806                         bounce_to
2807                         );
2808
2809                            imsg = malloc(sizeof(struct CtdlMessage));
2810                            memset(imsg, 0, sizeof(struct CtdlMessage));
2811                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2812                            imsg->cm_anon_type = MES_NORMAL;
2813                            imsg->cm_format_type = FMT_RFC822;
2814                            imsg->cm_fields['A'] = strdup("Citadel");
2815                            imsg->cm_fields['J'] = strdup("do not journal");
2816                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2817                            imsg->cm_fields['W'] = strdup(recipient);
2818                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM, 0);
2819                            CtdlFreeMessage(imsg);
2820                         }
2821                 }
2822                 else {
2823                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2824                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2825                                 newmsgid, 0, msg);
2826                 }
2827         }
2828
2829         /* Perform "after save" hooks */
2830         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2831         PerformMessageHooks(msg, EVT_AFTERSAVE);
2832
2833         /* For IGnet mail, we have to save a new copy into the spooler for
2834          * each recipient, with the R and D fields set to the recipient and
2835          * destination-node.  This has two ugly side effects: all other
2836          * recipients end up being unlisted in this recipient's copy of the
2837          * message, and it has to deliver multiple messages to the same
2838          * node.  We'll revisit this again in a year or so when everyone has
2839          * a network spool receiver that can handle the new style messages.
2840          */
2841         if (recps != NULL)
2842          if (recps->num_ignet > 0)
2843           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2844                 extract_token(recipient, recps->recp_ignet, i,
2845                                 '|', sizeof recipient);
2846
2847                 hold_R = msg->cm_fields['R'];
2848                 hold_D = msg->cm_fields['D'];
2849                 msg->cm_fields['R'] = malloc(SIZ);
2850                 msg->cm_fields['D'] = malloc(128);
2851                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2852                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2853
2854                 serialize_message(&smr, msg);
2855                 if (smr.len > 0) {
2856                         snprintf(submit_filename, sizeof submit_filename,
2857                                          "%s/netmail.%04lx.%04x.%04x",
2858                                          ctdl_netin_dir,
2859                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2860                         network_fp = fopen(submit_filename, "wb+");
2861                         if (network_fp != NULL) {
2862                                 fwrite(smr.ser, smr.len, 1, network_fp);
2863                                 fclose(network_fp);
2864                         }
2865                         free(smr.ser);
2866                 }
2867
2868                 free(msg->cm_fields['R']);
2869                 free(msg->cm_fields['D']);
2870                 msg->cm_fields['R'] = hold_R;
2871                 msg->cm_fields['D'] = hold_D;
2872         }
2873
2874         /* Go back to the room we started from */
2875         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2876         if (strcasecmp(hold_rm, CCC->room.QRname))
2877                 usergoto(hold_rm, 0, 1, NULL, NULL);
2878
2879         /* For internet mail, generate delivery instructions.
2880          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2881          * not happen because the delivery instructions message does not
2882          * contain a recipient.
2883          */
2884         if (recps != NULL)
2885          if (recps->num_internet > 0) {
2886                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2887                 instr_alloc = 1024;
2888                 instr = malloc(instr_alloc);
2889                 snprintf(instr, instr_alloc,
2890                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2891                         "bounceto|%s\n",
2892                         SPOOLMIME, newmsgid, (long)time(NULL),
2893                         bounce_to
2894                 );
2895
2896                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2897                         size_t tmp = strlen(instr);
2898                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2899                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2900                                 instr_alloc = instr_alloc * 2;
2901                                 instr = realloc(instr, instr_alloc);
2902                         }
2903                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2904                 }
2905
2906                 imsg = malloc(sizeof(struct CtdlMessage));
2907                 memset(imsg, 0, sizeof(struct CtdlMessage));
2908                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2909                 imsg->cm_anon_type = MES_NORMAL;
2910                 imsg->cm_format_type = FMT_RFC822;
2911                 imsg->cm_fields['A'] = strdup("Citadel");
2912                 imsg->cm_fields['J'] = strdup("do not journal");
2913                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2914                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
2915                 CtdlFreeMessage(imsg);
2916         }
2917
2918         /*
2919          * Any addresses to harvest for someone's address book?
2920          */
2921         if ( (CCC->logged_in) && (recps != NULL) ) {
2922                 collected_addresses = harvest_collected_addresses(msg);
2923         }
2924
2925         if (collected_addresses != NULL) {
2926                 aptr = (struct addresses_to_be_filed *)
2927                         malloc(sizeof(struct addresses_to_be_filed));
2928                 MailboxName(actual_rm, sizeof actual_rm,
2929                         &CCC->user, USERCONTACTSROOM);
2930                 aptr->roomname = strdup(actual_rm);
2931                 aptr->collected_addresses = collected_addresses;
2932                 begin_critical_section(S_ATBF);
2933                 aptr->next = atbf;
2934                 atbf = aptr;
2935                 end_critical_section(S_ATBF);
2936         }
2937
2938         /*
2939          * Determine whether this message qualifies for journaling.
2940          */
2941         if (msg->cm_fields['J'] != NULL) {
2942                 qualified_for_journaling = 0;
2943         }
2944         else {
2945                 if (recps == NULL) {
2946                         qualified_for_journaling = config.c_journal_pubmsgs;
2947                 }
2948                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2949                         qualified_for_journaling = config.c_journal_email;
2950                 }
2951                 else {
2952                         qualified_for_journaling = config.c_journal_pubmsgs;
2953                 }
2954         }
2955
2956         /*
2957          * Do we have to perform journaling?  If so, hand off the saved
2958          * RFC822 version will be handed off to the journaler for background
2959          * submit.  Otherwise, we have to free the memory ourselves.
2960          */
2961         if (saved_rfc822_version != NULL) {
2962                 if (qualified_for_journaling) {
2963                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2964                 }
2965                 else {
2966                         free(saved_rfc822_version);
2967                 }
2968         }
2969
2970         /* Done. */
2971         return(newmsgid);
2972 }
2973
2974
2975
2976
2977
2978 /*
2979  * Convenience function for generating small administrative messages.
2980  */
2981 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text,
2982                         int format_type, char *subject)
2983 {
2984         struct CtdlMessage *msg;
2985         struct recptypes *recp = NULL;
2986
2987         msg = malloc(sizeof(struct CtdlMessage));
2988         memset(msg, 0, sizeof(struct CtdlMessage));
2989         msg->cm_magic = CTDLMESSAGE_MAGIC;
2990         msg->cm_anon_type = MES_NORMAL;
2991         msg->cm_format_type = format_type;
2992
2993         if (from != NULL) {
2994                 msg->cm_fields['A'] = strdup(from);
2995         }
2996         else if (fromaddr != NULL) {
2997                 msg->cm_fields['A'] = strdup(fromaddr);
2998                 if (strchr(msg->cm_fields['A'], '@')) {
2999                         *strchr(msg->cm_fields['A'], '@') = 0;
3000                 }
3001         }
3002         else {
3003                 msg->cm_fields['A'] = strdup("Citadel");
3004         }
3005
3006         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
3007         if (room != NULL) msg->cm_fields['O'] = strdup(room);
3008         msg->cm_fields['N'] = strdup(NODENAME);
3009         if (to != NULL) {
3010                 msg->cm_fields['R'] = strdup(to);
3011                 recp = validate_recipients(to, NULL, 0);
3012         }
3013         if (subject != NULL) {
3014                 msg->cm_fields['U'] = strdup(subject);
3015         }
3016         msg->cm_fields['M'] = strdup(text);
3017
3018         CtdlSubmitMsg(msg, recp, room, 0);
3019         CtdlFreeMessage(msg);
3020         if (recp != NULL) free_recipients(recp);
3021 }
3022
3023
3024
3025 /*
3026  * Back end function used by CtdlMakeMessage() and similar functions
3027  */
3028 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
3029                         size_t maxlen,          /* maximum message length */
3030                         char *exist,            /* if non-null, append to it;
3031                                                    exist is ALWAYS freed  */
3032                         int crlf,               /* CRLF newlines instead of LF */
3033                         int sock                /* socket handle or 0 for this session's client socket */
3034                         ) {
3035         char buf[1024];
3036         int linelen;
3037         size_t message_len = 0;
3038         size_t buffer_len = 0;
3039         char *ptr;
3040         char *m;
3041         int flushing = 0;
3042         int finished = 0;
3043         int dotdot = 0;
3044
3045         if (exist == NULL) {
3046                 m = malloc(4096);
3047                 m[0] = 0;
3048                 buffer_len = 4096;
3049                 message_len = 0;
3050         }
3051         else {
3052                 message_len = strlen(exist);
3053                 buffer_len = message_len + 4096;
3054                 m = realloc(exist, buffer_len);
3055                 if (m == NULL) {
3056                         free(exist);
3057                         return m;
3058                 }
3059         }
3060
3061         /* Do we need to change leading ".." to "." for SMTP escaping? */
3062         if (!strcmp(terminator, ".")) {
3063                 dotdot = 1;
3064         }
3065
3066         /* flush the input if we have nowhere to store it */
3067         if (m == NULL) {
3068                 flushing = 1;
3069         }
3070
3071         /* read in the lines of message text one by one */
3072         do {
3073                 if (sock > 0) {
3074                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3075                 }
3076                 else {
3077                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3078                 }
3079                 if (!strcmp(buf, terminator)) finished = 1;
3080                 if (crlf) {
3081                         strcat(buf, "\r\n");
3082                 }
3083                 else {
3084                         strcat(buf, "\n");
3085                 }
3086
3087                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3088                 if (dotdot) {
3089                         if (!strncmp(buf, "..", 2)) {
3090                                 strcpy(buf, &buf[1]);
3091                         }
3092                 }
3093
3094                 if ( (!flushing) && (!finished) ) {
3095                         /* Measure the line */
3096                         linelen = strlen(buf);
3097
3098                         /* augment the buffer if we have to */
3099                         if ((message_len + linelen) >= buffer_len) {
3100                                 ptr = realloc(m, (buffer_len * 2) );
3101                                 if (ptr == NULL) {      /* flush if can't allocate */
3102                                         flushing = 1;
3103                                 } else {
3104                                         buffer_len = (buffer_len * 2);
3105                                         m = ptr;
3106                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3107                                 }
3108                         }
3109
3110                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3111                         * using functions like strcat() and strlen() because they
3112                         * traverse the entire buffer upon every call, and doing that
3113                         * for a multi-megabyte message slows it down beyond usability.
3114                         */
3115                         strcpy(&m[message_len], buf);
3116                         message_len += linelen;
3117                 }
3118
3119                 /* if we've hit the max msg length, flush the rest */
3120                 if (message_len >= maxlen) flushing = 1;
3121
3122         } while (!finished);
3123         return(m);
3124 }
3125
3126
3127
3128
3129 /*
3130  * Build a binary message to be saved on disk.
3131  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3132  * will become part of the message.  This means you are no longer
3133  * responsible for managing that memory -- it will be freed along with
3134  * the rest of the fields when CtdlFreeMessage() is called.)
3135  */
3136
3137 struct CtdlMessage *CtdlMakeMessage(
3138         struct ctdluser *author,        /* author's user structure */
3139         char *recipient,                /* NULL if it's not mail */
3140         char *recp_cc,                  /* NULL if it's not mail */
3141         char *room,                     /* room where it's going */
3142         int type,                       /* see MES_ types in header file */
3143         int format_type,                /* variformat, plain text, MIME... */
3144         char *fake_name,                /* who we're masquerading as */
3145         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3146         char *subject,                  /* Subject (optional) */
3147         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3148         char *preformatted_text,        /* ...or NULL to read text from client */
3149         char *references                /* Thread references */
3150 ) {
3151         char dest_node[256];
3152         char buf[1024];
3153         struct CtdlMessage *msg;
3154
3155         msg = malloc(sizeof(struct CtdlMessage));
3156         memset(msg, 0, sizeof(struct CtdlMessage));
3157         msg->cm_magic = CTDLMESSAGE_MAGIC;
3158         msg->cm_anon_type = type;
3159         msg->cm_format_type = format_type;
3160
3161         /* Don't confuse the poor folks if it's not routed mail. */
3162         strcpy(dest_node, "");
3163
3164         striplt(recipient);
3165         striplt(recp_cc);
3166
3167         /* Path or Return-Path */
3168         if (my_email == NULL) my_email = "";
3169
3170         if (!IsEmptyStr(my_email)) {
3171                 msg->cm_fields['P'] = strdup(my_email);
3172         }
3173         else {
3174                 snprintf(buf, sizeof buf, "%s", author->fullname);
3175                 msg->cm_fields['P'] = strdup(buf);
3176         }
3177         convert_spaces_to_underscores(msg->cm_fields['P']);
3178
3179         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3180         msg->cm_fields['T'] = strdup(buf);
3181
3182         if (fake_name[0])                                       /* author */
3183                 msg->cm_fields['A'] = strdup(fake_name);
3184         else
3185                 msg->cm_fields['A'] = strdup(author->fullname);
3186
3187         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3188                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3189         }
3190         else {
3191                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3192         }
3193
3194         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3195         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3196
3197         if (recipient[0] != 0) {
3198                 msg->cm_fields['R'] = strdup(recipient);
3199         }
3200         if (recp_cc[0] != 0) {
3201                 msg->cm_fields['Y'] = strdup(recp_cc);
3202         }
3203         if (dest_node[0] != 0) {
3204                 msg->cm_fields['D'] = strdup(dest_node);
3205         }
3206
3207         if (!IsEmptyStr(my_email)) {
3208                 msg->cm_fields['F'] = strdup(my_email);
3209         }
3210         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3211                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3212         }
3213
3214         if (subject != NULL) {
3215                 long length;
3216                 striplt(subject);
3217                 length = strlen(subject);
3218                 if (length > 0) {
3219                         long i;
3220                         long IsAscii;
3221                         IsAscii = -1;
3222                         i = 0;
3223                         while ((subject[i] != '\0') &&
3224                                (IsAscii = isascii(subject[i]) != 0 ))
3225                                 i++;
3226                         if (IsAscii != 0)
3227                                 msg->cm_fields['U'] = strdup(subject);
3228                         else /* ok, we've got utf8 in the string. */
3229                         {
3230                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3231                         }
3232
3233                 }
3234         }
3235
3236         if (supplied_euid != NULL) {
3237                 msg->cm_fields['E'] = strdup(supplied_euid);
3238         }
3239
3240         if (references != NULL) {
3241                 if (!IsEmptyStr(references)) {
3242                         msg->cm_fields['W'] = strdup(references);
3243                 }
3244         }
3245
3246         if (preformatted_text != NULL) {
3247                 msg->cm_fields['M'] = preformatted_text;
3248         }
3249         else {
3250                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3251         }
3252
3253         return(msg);
3254 }
3255
3256
3257 /*
3258  * Check to see whether we have permission to post a message in the current
3259  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3260  * returns 0 on success.
3261  */
3262 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf,
3263                                           size_t n,
3264                                           const char* RemoteIdentifier,
3265                                           int PostPublic) {
3266         int ra;
3267
3268         if (!(CC->logged_in) &&
3269             (PostPublic == POST_LOGGED_IN)) {
3270                 snprintf(errmsgbuf, n, "Not logged in.");
3271                 return (ERROR + NOT_LOGGED_IN);
3272         }
3273         else if (PostPublic == CHECK_EXISTANCE) {
3274                 return (0); // We're Evaling whether a recipient exists
3275         }
3276         else if (!(CC->logged_in)) {
3277
3278                 if ((CC->room.QRflags & QR_READONLY)) {
3279                         snprintf(errmsgbuf, n, "Not logged in.");
3280                         return (ERROR + NOT_LOGGED_IN);
3281                 }
3282                 if (CC->room.QRflags2 & QR2_MODERATED) {
3283                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3284                         return (ERROR + NOT_LOGGED_IN);
3285                 }
3286                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3287                         SpoolControl *sc;
3288                         char filename[SIZ];
3289                         int found;
3290
3291                         if (RemoteIdentifier == NULL)
3292                         {
3293                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3294                                 return (ERROR + USERNAME_REQUIRED);
3295                         }
3296
3297                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3298                         begin_critical_section(S_NETCONFIGS);
3299                         if (!read_spoolcontrol_file(&sc, filename))
3300                         {
3301                                 end_critical_section(S_NETCONFIGS);
3302                                 snprintf(errmsgbuf, n,
3303                                         "This mailing list only accepts posts from subscribers.");
3304                                 return (ERROR + NO_SUCH_USER);
3305                         }
3306                         end_critical_section(S_NETCONFIGS);
3307                         found = is_recipient (sc, RemoteIdentifier);
3308                         free_spoolcontrol_struct(&sc);
3309                         if (found) {
3310                                 return (0);
3311                         }
3312                         else {
3313                                 snprintf(errmsgbuf, n,
3314                                         "This mailing list only accepts posts from subscribers.");
3315                                 return (ERROR + NO_SUCH_USER);
3316                         }
3317                 }
3318                 return (0);
3319
3320         }
3321
3322         if ((CC->user.axlevel < 2)
3323             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3324                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3325                                 "(except in %s> to sysop)", MAILROOM);
3326                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3327         }
3328
3329         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3330         if (!(ra & UA_POSTALLOWED)) {
3331                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3332                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3333         }
3334
3335         strcpy(errmsgbuf, "Ok");
3336         return(0);
3337 }
3338
3339
3340 /*
3341  * Check to see if the specified user has Internet mail permission
3342  * (returns nonzero if permission is granted)
3343  */
3344 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3345
3346         /* Do not allow twits to send Internet mail */
3347         if (who->axlevel <= 2) return(0);
3348
3349         /* Globally enabled? */
3350         if (config.c_restrict == 0) return(1);
3351
3352         /* User flagged ok? */
3353         if (who->flags & US_INTERNET) return(2);
3354
3355         /* Aide level access? */
3356         if (who->axlevel >= 6) return(3);
3357
3358         /* No mail for you! */
3359         return(0);
3360 }
3361
3362
3363 /*
3364  * Validate recipients, count delivery types and errors, and handle aliasing
3365  * FIXME check for dupes!!!!!
3366  *
3367  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
3368  * were specified, or the number of addresses found invalid.
3369  *
3370  * Caller needs to free the result using free_recipients()
3371  */
3372 struct recptypes *validate_recipients(char *supplied_recipients,
3373                                       const char *RemoteIdentifier,
3374                                       int Flags) {
3375         struct recptypes *ret;
3376         char *recipients = NULL;
3377         char this_recp[256];
3378         char this_recp_cooked[256];
3379         char append[SIZ];
3380         int num_recps = 0;
3381         int i, j;
3382         int mailtype;
3383         int invalid;
3384         struct ctdluser tempUS;
3385         struct ctdlroom tempQR;
3386         struct ctdlroom tempQR2;
3387         int err = 0;
3388         char errmsg[SIZ];
3389         int in_quotes = 0;
3390
3391         /* Initialize */
3392         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3393         if (ret == NULL) return(NULL);
3394
3395         /* Set all strings to null and numeric values to zero */
3396         memset(ret, 0, sizeof(struct recptypes));
3397
3398         if (supplied_recipients == NULL) {
3399                 recipients = strdup("");
3400         }
3401         else {
3402                 recipients = strdup(supplied_recipients);
3403         }
3404
3405         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3406          * actually need, but it's healthier for the heap than doing lots of tiny
3407          * realloc() calls instead.
3408          */
3409
3410         ret->errormsg = malloc(strlen(recipients) + 1024);
3411         ret->recp_local = malloc(strlen(recipients) + 1024);
3412         ret->recp_internet = malloc(strlen(recipients) + 1024);
3413         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3414         ret->recp_room = malloc(strlen(recipients) + 1024);
3415         ret->display_recp = malloc(strlen(recipients) + 1024);
3416
3417         ret->errormsg[0] = 0;
3418         ret->recp_local[0] = 0;
3419         ret->recp_internet[0] = 0;
3420         ret->recp_ignet[0] = 0;
3421         ret->recp_room[0] = 0;
3422         ret->display_recp[0] = 0;
3423
3424         ret->recptypes_magic = RECPTYPES_MAGIC;
3425
3426         /* Change all valid separator characters to commas */
3427         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3428                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3429                         recipients[i] = ',';
3430                 }
3431         }
3432
3433         /* Now start extracting recipients... */
3434
3435         while (!IsEmptyStr(recipients)) {
3436
3437                 for (i=0; i<=strlen(recipients); ++i) {
3438                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3439                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3440                                 safestrncpy(this_recp, recipients, i+1);
3441                                 this_recp[i] = 0;
3442                                 if (recipients[i] == ',') {
3443                                         strcpy(recipients, &recipients[i+1]);
3444                                 }
3445                                 else {
3446                                         strcpy(recipients, "");
3447                                 }
3448                                 break;
3449                         }
3450                 }
3451
3452                 striplt(this_recp);
3453                 if (IsEmptyStr(this_recp))
3454                         break;
3455                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3456                 ++num_recps;
3457                 mailtype = alias(this_recp);
3458                 mailtype = alias(this_recp);
3459                 mailtype = alias(this_recp);
3460                 j = 0;
3461                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3462                         if (this_recp[j]=='_') {
3463                                 this_recp_cooked[j] = ' ';
3464                         }
3465                         else {
3466                                 this_recp_cooked[j] = this_recp[j];
3467                         }
3468                 }
3469                 this_recp_cooked[j] = '\0';
3470                 invalid = 0;
3471                 errmsg[0] = 0;
3472                 switch(mailtype) {
3473                         case MES_LOCAL:
3474                                 if (!strcasecmp(this_recp, "sysop")) {
3475                                         ++ret->num_room;
3476                                         strcpy(this_recp, config.c_aideroom);
3477                                         if (!IsEmptyStr(ret->recp_room)) {
3478                                                 strcat(ret->recp_room, "|");
3479                                         }
3480                                         strcat(ret->recp_room, this_recp);
3481                                 }
3482                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3483                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3484
3485                                         /* Save room so we can restore it later */
3486                                         tempQR2 = CC->room;
3487                                         CC->room = tempQR;
3488
3489                                         /* Check permissions to send mail to this room */
3490                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg,
3491                                                                                     sizeof errmsg,
3492                                                                                     RemoteIdentifier,
3493                                                                                     Flags
3494                                         );
3495                                         if (err)
3496                                         {
3497                                                 ++ret->num_error;
3498                                                 invalid = 1;
3499                                         }
3500                                         else {
3501                                                 ++ret->num_room;
3502                                                 if (!IsEmptyStr(ret->recp_room)) {
3503                                                         strcat(ret->recp_room, "|");
3504                                                 }
3505                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3506                                         }
3507
3508                                         /* Restore room in case something needs it */
3509                                         CC->room = tempQR2;
3510
3511                                 }
3512                                 else if (getuser(&tempUS, this_recp) == 0) {
3513                                         ++ret->num_local;
3514                                         strcpy(this_recp, tempUS.fullname);
3515                                         if (!IsEmptyStr(ret->recp_local)) {
3516                                                 strcat(ret->recp_local, "|");
3517                                         }
3518                                         strcat(ret->recp_local, this_recp);
3519                                 }
3520                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3521                                         ++ret->num_local;
3522                                         strcpy(this_recp, tempUS.fullname);
3523                                         if (!IsEmptyStr(ret->recp_local)) {
3524                                                 strcat(ret->recp_local, "|");
3525                                         }
3526                                         strcat(ret->recp_local, this_recp);
3527                                 }
3528                                 else {
3529                                         ++ret->num_error;
3530                                         invalid = 1;
3531                                 }
3532                                 break;
3533                         case MES_INTERNET:
3534                                 /* Yes, you're reading this correctly: if the target
3535                                  * domain points back to the local system or an attached
3536                                  * Citadel directory, the address is invalid.  That's
3537                                  * because if the address were valid, we would have
3538                                  * already translated it to a local address by now.
3539                                  */
3540                                 if (IsDirectory(this_recp, 0)) {
3541                                         ++ret->num_error;
3542                                         invalid = 1;
3543                                 }
3544                                 else {
3545                                         ++ret->num_internet;
3546                                         if (!IsEmptyStr(ret->recp_internet)) {
3547                                                 strcat(ret->recp_internet, "|");
3548                                         }
3549                                         strcat(ret->recp_internet, this_recp);
3550                                 }
3551                                 break;
3552                         case MES_IGNET:
3553                                 ++ret->num_ignet;
3554                                 if (!IsEmptyStr(ret->recp_ignet)) {
3555                                         strcat(ret->recp_ignet, "|");
3556                                 }
3557                                 strcat(ret->recp_ignet, this_recp);
3558                                 break;
3559                         case MES_ERROR:
3560                                 ++ret->num_error;
3561                                 invalid = 1;
3562                                 break;
3563                 }
3564                 if (invalid) {
3565                         if (IsEmptyStr(errmsg)) {
3566                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3567                         }
3568                         else {
3569                                 snprintf(append, sizeof append, "%s", errmsg);
3570                         }
3571                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3572                                 if (!IsEmptyStr(ret->errormsg)) {
3573                                         strcat(ret->errormsg, "; ");
3574                                 }
3575                                 strcat(ret->errormsg, append);
3576                         }
3577                 }
3578                 else {
3579                         if (IsEmptyStr(ret->display_recp)) {
3580                                 strcpy(append, this_recp);
3581                         }
3582                         else {
3583                                 snprintf(append, sizeof append, ", %s", this_recp);
3584                         }
3585                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3586                                 strcat(ret->display_recp, append);
3587                         }
3588                 }
3589         }
3590
3591         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3592            ret->num_room + ret->num_error) == 0) {
3593                 ret->num_error = (-1);
3594                 strcpy(ret->errormsg, "No recipients specified.");
3595         }
3596
3597         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3598         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3599         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3600         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3601         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3602         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3603
3604         free(recipients);
3605         return(ret);
3606 }
3607
3608
3609 /*
3610  * Destructor for struct recptypes
3611  */
3612 void free_recipients(struct recptypes *valid) {
3613
3614         if (valid == NULL) {
3615                 return;
3616         }
3617
3618         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3619                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3620                 abort();
3621         }
3622
3623         if (valid->errormsg != NULL)            free(valid->errormsg);
3624         if (valid->recp_local != NULL)          free(valid->recp_local);
3625         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3626         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3627         if (valid->recp_room != NULL)           free(valid->recp_room);
3628         if (valid->display_recp != NULL)        free(valid->display_recp);
3629         free(valid);
3630 }
3631
3632
3633
3634 /*
3635  * message entry  -  mode 0 (normal)
3636  */
3637 void cmd_ent0(char *entargs)
3638 {
3639         int post = 0;
3640         char recp[SIZ];
3641         char cc[SIZ];
3642         char bcc[SIZ];
3643         char supplied_euid[128];
3644         int anon_flag = 0;
3645         int format_type = 0;
3646         char newusername[256];
3647         char newuseremail[256];
3648         struct CtdlMessage *msg;
3649         int anonymous = 0;
3650         char errmsg[SIZ];
3651         int err = 0;
3652         struct recptypes *valid = NULL;
3653         struct recptypes *valid_to = NULL;
3654         struct recptypes *valid_cc = NULL;
3655         struct recptypes *valid_bcc = NULL;
3656         char subject[SIZ];
3657         int subject_required = 0;
3658         int do_confirm = 0;
3659         long msgnum;
3660         int i, j;
3661         char buf[256];
3662         int newuseremail_ok = 0;
3663         char references[SIZ];
3664         char *ptr;
3665
3666         unbuffer_output();
3667
3668         post = extract_int(entargs, 0);
3669         extract_token(recp, entargs, 1, '|', sizeof recp);
3670         anon_flag = extract_int(entargs, 2);
3671         format_type = extract_int(entargs, 3);
3672         extract_token(subject, entargs, 4, '|', sizeof subject);
3673         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3674         do_confirm = extract_int(entargs, 6);
3675         extract_token(cc, entargs, 7, '|', sizeof cc);
3676         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3677         switch(CC->room.QRdefaultview) {
3678                 case VIEW_NOTES:
3679                 case VIEW_WIKI:
3680                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3681                         break;
3682                 default:
3683                         supplied_euid[0] = 0;
3684                         break;
3685         }
3686         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3687         extract_token(references, entargs, 11, '|', sizeof references);
3688         for (ptr=references; *ptr != 0; ++ptr) {
3689                 if (*ptr == '!') *ptr = '|';
3690         }
3691
3692         /* first check to make sure the request is valid. */
3693
3694         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3695         if (err)
3696         {
3697                 cprintf("%d %s\n", err, errmsg);
3698                 return;
3699         }
3700
3701         /* Check some other permission type things. */
3702
3703         if (IsEmptyStr(newusername)) {
3704                 strcpy(newusername, CC->user.fullname);
3705         }
3706         if (  (CC->user.axlevel < 6)
3707            && (strcasecmp(newusername, CC->user.fullname))
3708            && (strcasecmp(newusername, CC->cs_inet_fn))
3709         ) {
3710                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3711                         ERROR + HIGHER_ACCESS_REQUIRED,
3712                         newusername
3713                 );
3714                 return;
3715         }
3716
3717
3718         if (IsEmptyStr(newuseremail)) {
3719                 newuseremail_ok = 1;
3720         }
3721
3722         if (!IsEmptyStr(newuseremail)) {
3723                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3724                         newuseremail_ok = 1;
3725                 }
3726                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3727                         j = num_tokens(CC->cs_inet_other_emails, '|');
3728                         for (i=0; i<j; ++i) {
3729                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3730                                 if (!strcasecmp(newuseremail, buf)) {
3731                                         newuseremail_ok = 1;
3732                                 }
3733                         }
3734                 }
3735         }
3736
3737         if (!newuseremail_ok) {
3738                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3739                         ERROR + HIGHER_ACCESS_REQUIRED,
3740                         newuseremail
3741                 );
3742                 return;
3743         }
3744
3745         CC->cs_flags |= CS_POSTING;
3746
3747         /* In mailbox rooms we have to behave a little differently --
3748          * make sure the user has specified at least one recipient.  Then
3749          * validate the recipient(s).  We do this for the Mail> room, as
3750          * well as any room which has the "Mailbox" view set.
3751          */
3752
3753         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3754            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3755         ) {
3756                 if (CC->user.axlevel < 2) {
3757                         strcpy(recp, "sysop");
3758                         strcpy(cc, "");
3759                         strcpy(bcc, "");
3760                 }
3761
3762                 valid_to = validate_recipients(recp, NULL, 0);
3763                 if (valid_to->num_error > 0) {
3764                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3765                         free_recipients(valid_to);
3766                         return;
3767                 }
3768
3769                 valid_cc = validate_recipients(cc, NULL, 0);
3770                 if (valid_cc->num_error > 0) {
3771                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3772                         free_recipients(valid_to);
3773                         free_recipients(valid_cc);
3774                         return;
3775                 }
3776
3777                 valid_bcc = validate_recipients(bcc, NULL, 0);
3778                 if (valid_bcc->num_error > 0) {
3779                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3780                         free_recipients(valid_to);
3781                         free_recipients(valid_cc);
3782                         free_recipients(valid_bcc);
3783                         return;
3784                 }
3785
3786                 /* Recipient required, but none were specified */
3787                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3788                         free_recipients(valid_to);
3789                         free_recipients(valid_cc);
3790                         free_recipients(valid_bcc);
3791                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3792                         return;
3793                 }
3794
3795                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3796                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3797                                 cprintf("%d You do not have permission "
3798                                         "to send Internet mail.\n",
3799                                         ERROR + HIGHER_ACCESS_REQUIRED);
3800                                 free_recipients(valid_to);
3801                                 free_recipients(valid_cc);
3802                                 free_recipients(valid_bcc);
3803                                 return;
3804                         }
3805                 }
3806
3807                 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)
3808                    && (CC->user.axlevel < 4) ) {
3809                         cprintf("%d Higher access required for network mail.\n",
3810                                 ERROR + HIGHER_ACCESS_REQUIRED);
3811                         free_recipients(valid_to);
3812                         free_recipients(valid_cc);
3813                         free_recipients(valid_bcc);
3814                         return;
3815                 }
3816
3817                 if ((RESTRICT_INTERNET == 1)
3818                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3819                     && ((CC->user.flags & US_INTERNET) == 0)
3820                     && (!CC->internal_pgm)) {
3821                         cprintf("%d You don't have access to 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
3831         /* Is this a room which has anonymous-only or anonymous-option? */
3832         anonymous = MES_NORMAL;
3833         if (CC->room.QRflags & QR_ANONONLY) {
3834                 anonymous = MES_ANONONLY;
3835         }
3836         if (CC->room.QRflags & QR_ANONOPT) {
3837                 if (anon_flag == 1) {   /* only if the user requested it */
3838                         anonymous = MES_ANONOPT;
3839                 }
3840         }
3841
3842         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3843                 recp[0] = 0;
3844         }
3845
3846         /* Recommend to the client that the use of a message subject is
3847          * strongly recommended in this room, if either the SUBJECTREQ flag
3848          * is set, or if there is one or more Internet email recipients.
3849          */
3850         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3851         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3852         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3853         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3854
3855         /* If we're only checking the validity of the request, return
3856          * success without creating the message.
3857          */
3858         if (post == 0) {
3859                 cprintf("%d %s|%d\n", CIT_OK,
3860                         ((valid_to != NULL) ? valid_to->display_recp : ""),
3861                         subject_required);
3862                 free_recipients(valid_to);
3863                 free_recipients(valid_cc);
3864                 free_recipients(valid_bcc);
3865                 return;
3866         }
3867
3868         /* We don't need these anymore because we'll do it differently below */
3869         free_recipients(valid_to);
3870         free_recipients(valid_cc);
3871         free_recipients(valid_bcc);
3872
3873         /* Read in the message from the client. */
3874         if (do_confirm) {
3875                 cprintf("%d send message\n", START_CHAT_MODE);
3876         } else {
3877                 cprintf("%d send message\n", SEND_LISTING);
3878         }
3879
3880         msg = CtdlMakeMessage(&CC->user, recp, cc,
3881                 CC->room.QRname, anonymous, format_type,
3882                 newusername, newuseremail, subject,
3883                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3884                 NULL, references);
3885
3886         /* Put together one big recipients struct containing to/cc/bcc all in
3887          * one.  This is for the envelope.
3888          */
3889         char *all_recps = malloc(SIZ * 3);
3890         strcpy(all_recps, recp);
3891         if (!IsEmptyStr(cc)) {
3892                 if (!IsEmptyStr(all_recps)) {
3893                         strcat(all_recps, ",");
3894                 }
3895                 strcat(all_recps, cc);
3896         }
3897         if (!IsEmptyStr(bcc)) {
3898                 if (!IsEmptyStr(all_recps)) {
3899                         strcat(all_recps, ",");
3900                 }
3901                 strcat(all_recps, bcc);
3902         }
3903         if (!IsEmptyStr(all_recps)) {
3904                 valid = validate_recipients(all_recps, NULL, 0);
3905         }
3906         else {
3907                 valid = NULL;
3908         }
3909         free(all_recps);
3910
3911         if (msg != NULL) {
3912                 msgnum = CtdlSubmitMsg(msg, valid, "", QP_EADDR);
3913
3914                 if (do_confirm) {
3915                         cprintf("%ld\n", msgnum);
3916                         if (msgnum >= 0L) {
3917                                 cprintf("Message accepted.\n");
3918                         }
3919                         else {
3920                                 cprintf("Internal error.\n");
3921                         }
3922                         if (msg->cm_fields['E'] != NULL) {
3923                                 cprintf("%s\n", msg->cm_fields['E']);
3924                         } else {
3925                                 cprintf("\n");
3926                         }
3927                         cprintf("000\n");
3928                 }
3929
3930                 CtdlFreeMessage(msg);
3931         }
3932         if (valid != NULL) {
3933                 free_recipients(valid);
3934         }
3935         return;
3936 }
3937
3938
3939
3940 /*
3941  * API function to delete messages which match a set of criteria
3942  * (returns the actual number of messages deleted)
3943  */
3944 int CtdlDeleteMessages(char *room_name,         /* which room */
3945                         long *dmsgnums,         /* array of msg numbers to be deleted */
3946                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3947                         char *content_type      /* or "" for any.  regular expressions expected. */
3948 )
3949 {
3950         struct ctdlroom qrbuf;
3951         struct cdbdata *cdbfr;
3952         long *msglist = NULL;
3953         long *dellist = NULL;
3954         int num_msgs = 0;
3955         int i, j;
3956         int num_deleted = 0;
3957         int delete_this;
3958         struct MetaData smi;
3959         regex_t re;
3960         regmatch_t pm;
3961         int need_to_free_re = 0;
3962
3963         if (content_type) if (!IsEmptyStr(content_type)) {
3964                 regcomp(&re, content_type, 0);
3965                 need_to_free_re = 1;
3966         }
3967         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3968                 room_name, num_dmsgnums, content_type);
3969
3970         /* get room record, obtaining a lock... */
3971         if (lgetroom(&qrbuf, room_name) != 0) {
3972                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3973                         room_name);
3974                 if (need_to_free_re) regfree(&re);
3975                 return (0);     /* room not found */
3976         }
3977         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3978
3979         if (cdbfr != NULL) {
3980                 dellist = malloc(cdbfr->len);
3981                 msglist = (long *) cdbfr->ptr;
3982                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
3983                 num_msgs = cdbfr->len / sizeof(long);
3984                 cdb_free(cdbfr);
3985         }
3986         if (num_msgs > 0) {
3987                 for (i = 0; i < num_msgs; ++i) {
3988                         delete_this = 0x00;
3989
3990                         /* Set/clear a bit for each criterion */
3991
3992                         /* 0 messages in the list or a null list means that we are
3993                          * interested in deleting any messages which meet the other criteria.
3994                          */
3995                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
3996                                 delete_this |= 0x01;
3997                         }
3998                         else {
3999                                 for (j=0; j<num_dmsgnums; ++j) {
4000                                         if (msglist[i] == dmsgnums[j]) {
4001                                                 delete_this |= 0x01;
4002                                         }
4003                                 }
4004                         }
4005
4006                         if (IsEmptyStr(content_type)) {
4007                                 delete_this |= 0x02;
4008                         } else {
4009                                 GetMetaData(&smi, msglist[i]);
4010                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
4011                                         delete_this |= 0x02;
4012                                 }
4013                         }
4014
4015                         /* Delete message only if all bits are set */
4016                         if (delete_this == 0x03) {
4017                                 dellist[num_deleted++] = msglist[i];
4018                                 msglist[i] = 0L;
4019                         }
4020                 }
4021
4022                 num_msgs = sort_msglist(msglist, num_msgs);
4023                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
4024                           msglist, (int)(num_msgs * sizeof(long)));
4025
4026                 qrbuf.QRhighest = msglist[num_msgs - 1];
4027         }
4028         lputroom(&qrbuf);
4029
4030         /* Go through the messages we pulled out of the index, and decrement
4031          * their reference counts by 1.  If this is the only room the message
4032          * was in, the reference count will reach zero and the message will
4033          * automatically be deleted from the database.  We do this in a
4034          * separate pass because there might be plug-in hooks getting called,
4035          * and we don't want that happening during an S_ROOMS critical
4036          * section.
4037          */
4038         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4039                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4040                 AdjRefCount(dellist[i], -1);
4041         }
4042
4043         /* Now free the memory we used, and go away. */
4044         if (msglist != NULL) free(msglist);
4045         if (dellist != NULL) free(dellist);
4046         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4047         if (need_to_free_re) regfree(&re);
4048         return (num_deleted);
4049 }
4050
4051
4052
4053 /*
4054  * Check whether the current user has permission to delete messages from
4055  * the current room (returns 1 for yes, 0 for no)
4056  */
4057 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4058         int ra;
4059         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4060         if (ra & UA_DELETEALLOWED) return(1);
4061         return(0);
4062 }
4063
4064
4065
4066
4067 /*
4068  * Delete message from current room
4069  */
4070 void cmd_dele(char *args)
4071 {
4072         int num_deleted;
4073         int i;
4074         char msgset[SIZ];
4075         char msgtok[32];
4076         long *msgs;
4077         int num_msgs = 0;
4078
4079         extract_token(msgset, args, 0, '|', sizeof msgset);
4080         num_msgs = num_tokens(msgset, ',');
4081         if (num_msgs < 1) {
4082                 cprintf("%d Nothing to do.\n", CIT_OK);
4083                 return;
4084         }
4085
4086         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4087                 cprintf("%d Higher access required.\n",
4088                         ERROR + HIGHER_ACCESS_REQUIRED);
4089                 return;
4090         }
4091
4092         /*
4093          * Build our message set to be moved/copied
4094          */
4095         msgs = malloc(num_msgs * sizeof(long));
4096         for (i=0; i<num_msgs; ++i) {
4097                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4098                 msgs[i] = atol(msgtok);
4099         }
4100
4101         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4102         free(msgs);
4103
4104         if (num_deleted) {
4105                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4106                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4107         } else {
4108                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4109         }
4110 }
4111
4112
4113 /*
4114  * Back end API function for moves and deletes (multiple messages)
4115  */
4116 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4117         int err;
4118
4119         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4120         if (err != 0) return(err);
4121
4122         return(0);
4123 }
4124
4125
4126
4127
4128 /*
4129  * move or copy a message to another room
4130  */
4131 void cmd_move(char *args)
4132 {
4133         char msgset[SIZ];
4134         char msgtok[32];
4135         long *msgs;
4136         int num_msgs = 0;
4137
4138         char targ[ROOMNAMELEN];
4139         struct ctdlroom qtemp;
4140         int err;
4141         int is_copy = 0;
4142         int ra;
4143         int permit = 0;
4144         int i;
4145
4146         extract_token(msgset, args, 0, '|', sizeof msgset);
4147         num_msgs = num_tokens(msgset, ',');
4148         if (num_msgs < 1) {
4149                 cprintf("%d Nothing to do.\n", CIT_OK);
4150                 return;
4151         }
4152
4153         extract_token(targ, args, 1, '|', sizeof targ);
4154         convert_room_name_macros(targ, sizeof targ);
4155         targ[ROOMNAMELEN - 1] = 0;
4156         is_copy = extract_int(args, 2);
4157
4158         if (getroom(&qtemp, targ) != 0) {
4159                 cprintf("%d '%s' does not exist.\n",
4160                         ERROR + ROOM_NOT_FOUND, targ);
4161                 return;
4162         }
4163
4164         getuser(&CC->user, CC->curr_user);
4165         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4166
4167         /* Check for permission to perform this operation.
4168          * Remember: "CC->room" is source, "qtemp" is target.
4169          */
4170         permit = 0;
4171
4172         /* Aides can move/copy */
4173         if (CC->user.axlevel >= 6) permit = 1;
4174
4175         /* Room aides can move/copy */
4176         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4177
4178         /* Permit move/copy from personal rooms */
4179         if ((CC->room.QRflags & QR_MAILBOX)
4180            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4181
4182         /* Permit only copy from public to personal room */
4183         if ( (is_copy)
4184            && (!(CC->room.QRflags & QR_MAILBOX))
4185            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4186
4187         /* Permit message removal from collaborative delete rooms */
4188         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4189
4190         /* Users allowed to post into the target room may move into it too. */
4191         if ((CC->room.QRflags & QR_MAILBOX) &&
4192             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4193
4194         /* User must have access to target room */
4195         if (!(ra & UA_KNOWN))  permit = 0;
4196
4197         if (!permit) {
4198                 cprintf("%d Higher access required.\n",
4199                         ERROR + HIGHER_ACCESS_REQUIRED);
4200                 return;
4201         }
4202
4203         /*
4204          * Build our message set to be moved/copied
4205          */
4206         msgs = malloc(num_msgs * sizeof(long));
4207         for (i=0; i<num_msgs; ++i) {
4208                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4209                 msgs[i] = atol(msgtok);
4210         }
4211
4212         /*
4213          * Do the copy
4214          */
4215         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4216         if (err != 0) {
4217                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4218                         err, targ, err);
4219                 free(msgs);
4220                 return;
4221         }
4222
4223         /* Now delete the message from the source room,
4224          * if this is a 'move' rather than a 'copy' operation.
4225          */
4226         if (is_copy == 0) {
4227                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4228         }
4229         free(msgs);
4230
4231         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4232 }
4233
4234
4235
4236 /*
4237  * GetMetaData()  -  Get the supplementary record for a message
4238  */
4239 void GetMetaData(struct MetaData *smibuf, long msgnum)
4240 {
4241
4242         struct cdbdata *cdbsmi;
4243         long TheIndex;
4244
4245         memset(smibuf, 0, sizeof(struct MetaData));
4246         smibuf->meta_msgnum = msgnum;
4247         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4248
4249         /* Use the negative of the message number for its supp record index */
4250         TheIndex = (0L - msgnum);
4251
4252         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4253         if (cdbsmi == NULL) {
4254                 return;         /* record not found; go with defaults */
4255         }
4256         memcpy(smibuf, cdbsmi->ptr,
4257                ((cdbsmi->len > sizeof(struct MetaData)) ?
4258                 sizeof(struct MetaData) : cdbsmi->len));
4259         cdb_free(cdbsmi);
4260         return;
4261 }
4262
4263
4264 /*
4265  * PutMetaData()  -  (re)write supplementary record for a message
4266  */
4267 void PutMetaData(struct MetaData *smibuf)
4268 {
4269         long TheIndex;
4270
4271         /* Use the negative of the message number for the metadata db index */
4272         TheIndex = (0L - smibuf->meta_msgnum);
4273
4274         cdb_store(CDB_MSGMAIN,
4275                   &TheIndex, (int)sizeof(long),
4276                   smibuf, (int)sizeof(struct MetaData));
4277
4278 }
4279
4280 /*
4281  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4282  *                 (These are just queued -- we actually process them later.)
4283  */
4284 void AdjRefCount(long msgnum, int incr)
4285 {
4286         struct arcq new_arcq;
4287
4288         begin_critical_section(S_SUPPMSGMAIN);
4289         if (arcfp == NULL) {
4290                 arcfp = fopen(file_arcq, "ab+");
4291         }
4292         end_critical_section(S_SUPPMSGMAIN);
4293
4294         /* msgnum < 0 means that we're trying to close the file */
4295         if (msgnum < 0) {
4296                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4297                 begin_critical_section(S_SUPPMSGMAIN);
4298                 if (arcfp != NULL) {
4299                         fclose(arcfp);
4300                         arcfp = NULL;
4301                 }
4302                 end_critical_section(S_SUPPMSGMAIN);
4303                 return;
4304         }
4305
4306         /*
4307          * If we can't open the queue, perform the operation synchronously.
4308          */
4309         if (arcfp == NULL) {
4310                 TDAP_AdjRefCount(msgnum, incr);
4311                 return;
4312         }
4313
4314         new_arcq.arcq_msgnum = msgnum;
4315         new_arcq.arcq_delta = incr;
4316         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4317         fflush(arcfp);
4318
4319         return;
4320 }
4321
4322
4323 /*
4324  * TDAP_ProcessAdjRefCountQueue()
4325  *
4326  * Process the queue of message count adjustments that was created by calls
4327  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4328  * for each one.  This should be an "off hours" operation.
4329  */
4330 int TDAP_ProcessAdjRefCountQueue(void)
4331 {
4332         char file_arcq_temp[PATH_MAX];
4333         int r;
4334         FILE *fp;
4335         struct arcq arcq_rec;
4336         int num_records_processed = 0;
4337
4338         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s.%04x", file_arcq, rand());
4339
4340         begin_critical_section(S_SUPPMSGMAIN);
4341         if (arcfp != NULL) {
4342                 fclose(arcfp);
4343                 arcfp = NULL;
4344         }
4345
4346         r = link(file_arcq, file_arcq_temp);
4347         if (r != 0) {
4348                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4349                 end_critical_section(S_SUPPMSGMAIN);
4350                 return(num_records_processed);
4351         }
4352
4353         unlink(file_arcq);
4354         end_critical_section(S_SUPPMSGMAIN);
4355
4356         fp = fopen(file_arcq_temp, "rb");
4357         if (fp == NULL) {
4358                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4359                 return(num_records_processed);
4360         }
4361
4362         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4363                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4364                 ++num_records_processed;
4365         }
4366
4367         fclose(fp);
4368         r = unlink(file_arcq_temp);
4369         if (r != 0) {
4370                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4371         }
4372
4373         return(num_records_processed);
4374 }
4375
4376
4377
4378 /*
4379  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4380  *                      This one does it "for real" because it's called by
4381  *                      the autopurger function that processes the queue
4382  *                      created by AdjRefCount().   If a message's reference
4383  *                      count becomes zero, we also delete the message from
4384  *                      disk and de-index it.
4385  */
4386 void TDAP_AdjRefCount(long msgnum, int incr)
4387 {
4388
4389         struct MetaData smi;
4390         long delnum;
4391
4392         /* This is a *tight* critical section; please keep it that way, as
4393          * it may get called while nested in other critical sections.
4394          * Complicating this any further will surely cause deadlock!
4395          */
4396         begin_critical_section(S_SUPPMSGMAIN);
4397         GetMetaData(&smi, msgnum);
4398         smi.meta_refcount += incr;
4399         PutMetaData(&smi);
4400         end_critical_section(S_SUPPMSGMAIN);
4401         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %+d, is now %d\n",
4402                 msgnum, incr, smi.meta_refcount);
4403
4404         /* If the reference count is now zero, delete the message
4405          * (and its supplementary record as well).
4406          */
4407         if (smi.meta_refcount == 0) {
4408                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4409
4410                 /* Call delete hooks with NULL room to show it has gone altogether */
4411                 PerformDeleteHooks(NULL, msgnum);
4412
4413                 /* Remove from message base */
4414                 delnum = msgnum;
4415                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4416                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4417
4418                 /* Remove metadata record */
4419                 delnum = (0L - msgnum);
4420                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4421         }
4422
4423 }
4424
4425 /*
4426  * Write a generic object to this room
4427  *
4428  * Note: this could be much more efficient.  Right now we use two temporary
4429  * files, and still pull the message into memory as with all others.
4430  */
4431 void CtdlWriteObject(char *req_room,                    /* Room to stuff it in */
4432                         char *content_type,             /* MIME type of this object */
4433                         char *raw_message,              /* Data to be written */
4434                         off_t raw_length,               /* Size of raw_message */
4435                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4436                         int is_binary,                  /* Is encoding necessary? */
4437                         int is_unique,                  /* Del others of this type? */
4438                         unsigned int flags              /* Internal save flags */
4439                         )
4440 {
4441
4442         struct ctdlroom qrbuf;
4443         char roomname[ROOMNAMELEN];
4444         struct CtdlMessage *msg;
4445         char *encoded_message = NULL;
4446
4447         if (is_mailbox != NULL) {
4448                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4449         }
4450         else {
4451                 safestrncpy(roomname, req_room, sizeof(roomname));
4452         }
4453
4454         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4455
4456         if (is_binary) {
4457                 encoded_message = malloc((size_t) (((raw_length * 134) / 100) + 4096 ) );
4458         }
4459         else {
4460                 encoded_message = malloc((size_t)(raw_length + 4096));
4461         }
4462
4463         sprintf(encoded_message, "Content-type: %s\n", content_type);
4464
4465         if (is_binary) {
4466                 sprintf(&encoded_message[strlen(encoded_message)],
4467                         "Content-transfer-encoding: base64\n\n"
4468                 );
4469         }
4470         else {
4471                 sprintf(&encoded_message[strlen(encoded_message)],
4472                         "Content-transfer-encoding: 7bit\n\n"
4473                 );
4474         }
4475
4476         if (is_binary) {
4477                 CtdlEncodeBase64(
4478                         &encoded_message[strlen(encoded_message)],
4479                         raw_message,
4480                         (int)raw_length,
4481                         0
4482                 );
4483         }
4484         else {
4485                 memcpy(
4486                         &encoded_message[strlen(encoded_message)],
4487                         raw_message,
4488                         (int)(raw_length+1)
4489                 );
4490         }
4491
4492         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4493         msg = malloc(sizeof(struct CtdlMessage));
4494         memset(msg, 0, sizeof(struct CtdlMessage));
4495         msg->cm_magic = CTDLMESSAGE_MAGIC;
4496         msg->cm_anon_type = MES_NORMAL;
4497         msg->cm_format_type = 4;
4498         msg->cm_fields['A'] = strdup(CC->user.fullname);
4499         msg->cm_fields['O'] = strdup(req_room);
4500         msg->cm_fields['N'] = strdup(config.c_nodename);
4501         msg->cm_fields['H'] = strdup(config.c_humannode);
4502         msg->cm_flags = flags;
4503
4504         msg->cm_fields['M'] = encoded_message;
4505
4506         /* Create the requested room if we have to. */
4507         if (getroom(&qrbuf, roomname) != 0) {
4508                 create_room(roomname,
4509                         ( (is_mailbox != NULL) ? 5 : 3 ),
4510                         "", 0, 1, 0, VIEW_BBS);
4511         }
4512         /* If the caller specified this object as unique, delete all
4513          * other objects of this type that are currently in the room.
4514          */
4515         if (is_unique) {
4516                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4517                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4518                 );
4519         }
4520         /* Now write the data */
4521         CtdlSubmitMsg(msg, NULL, roomname, 0);
4522         CtdlFreeMessage(msg);
4523 }
4524
4525
4526
4527
4528
4529
4530 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4531         config_msgnum = msgnum;
4532 }
4533
4534
4535 char *CtdlGetSysConfig(char *sysconfname) {
4536         char hold_rm[ROOMNAMELEN];
4537         long msgnum;
4538         char *conf;
4539         struct CtdlMessage *msg;
4540         char buf[SIZ];
4541
4542         strcpy(hold_rm, CC->room.QRname);
4543         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4544                 getroom(&CC->room, hold_rm);
4545                 return NULL;
4546         }
4547
4548
4549         /* We want the last (and probably only) config in this room */
4550         begin_critical_section(S_CONFIG);
4551         config_msgnum = (-1L);
4552         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4553                 CtdlGetSysConfigBackend, NULL);
4554         msgnum = config_msgnum;
4555         end_critical_section(S_CONFIG);
4556
4557         if (msgnum < 0L) {
4558                 conf = NULL;
4559         }
4560         else {
4561                 msg = CtdlFetchMessage(msgnum, 1);
4562                 if (msg != NULL) {
4563                         conf = strdup(msg->cm_fields['M']);
4564                         CtdlFreeMessage(msg);
4565                 }
4566                 else {
4567                         conf = NULL;
4568                 }
4569         }
4570
4571         getroom(&CC->room, hold_rm);
4572
4573         if (conf != NULL) do {
4574                 extract_token(buf, conf, 0, '\n', sizeof buf);
4575                 strcpy(conf, &conf[strlen(buf)+1]);
4576         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4577
4578         return(conf);
4579 }
4580
4581
4582 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4583         CtdlWriteObject(SYSCONFIGROOM, sysconfname, sysconfdata, (strlen(sysconfdata)+1), NULL, 0, 1, 0);
4584 }
4585
4586
4587 /*
4588  * Determine whether a given Internet address belongs to the current user
4589  */
4590 int CtdlIsMe(char *addr, int addr_buf_len)
4591 {
4592         struct recptypes *recp;
4593         int i;
4594
4595         recp = validate_recipients(addr, NULL, 0);
4596         if (recp == NULL) return(0);
4597
4598         if (recp->num_local == 0) {
4599                 free_recipients(recp);
4600                 return(0);
4601         }
4602
4603         for (i=0; i<recp->num_local; ++i) {
4604                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4605                 if (!strcasecmp(addr, CC->user.fullname)) {
4606                         free_recipients(recp);
4607                         return(1);
4608                 }
4609         }
4610
4611         free_recipients(recp);
4612         return(0);
4613 }
4614
4615
4616 /*
4617  * Citadel protocol command to do the same
4618  */
4619 void cmd_isme(char *argbuf) {
4620         char addr[256];
4621
4622         if (CtdlAccessCheck(ac_logged_in)) return;
4623         extract_token(addr, argbuf, 0, '|', sizeof addr);
4624
4625         if (CtdlIsMe(addr, sizeof addr)) {
4626                 cprintf("%d %s\n", CIT_OK, addr);
4627         }
4628         else {
4629                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4630         }
4631
4632 }