* fix buffer handling in qp_encode_email_addrs()
[citadel.git] / citadel / msgbase.c
1 /*
2  * $Id$
3  *
4  * Implements the message store.
5  *
6  */
7
8 #include "sysdep.h"
9 #include <stdlib.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <fcntl.h>
13
14 #if TIME_WITH_SYS_TIME
15 # include <sys/time.h>
16 # include <time.h>
17 #else
18 # if HAVE_SYS_TIME_H
19 #  include <sys/time.h>
20 # else
21 #  include <time.h>
22 # endif
23 #endif
24
25
26 #include <ctype.h>
27 #include <string.h>
28 #include <limits.h>
29 #include <errno.h>
30 #include <stdarg.h>
31 #include <sys/stat.h>
32 #include <sys/types.h>
33 #include <regex.h>
34 #include <libcitadel.h>
35 #include "citadel.h"
36 #include "server.h"
37 #include "serv_extensions.h"
38 #include "database.h"
39 #include "msgbase.h"
40 #include "support.h"
41 #include "sysdep_decls.h"
42 #include "citserver.h"
43 #include "room_ops.h"
44 #include "user_ops.h"
45 #include "file_ops.h"
46 #include "config.h"
47 #include "control.h"
48 #include "genstamp.h"
49 #include "internet_addressing.h"
50 #include "euidindex.h"
51 #include "journaling.h"
52 #include "citadel_dirs.h"
53 #include "clientsocket.h"
54 #include "serv_network.h"
55 #include "threads.h"
56
57 long config_msgnum;
58 struct addresses_to_be_filed *atbf = NULL;
59
60 /* This temp file holds the queue of operations for AdjRefCount() */
61 static FILE *arcfp = NULL;
62
63 /* 
64  * This really belongs in serv_network.c, but I don't know how to export
65  * symbols between modules.
66  */
67 struct FilterList *filterlist = NULL;
68
69
70 /*
71  * These are the four-character field headers we use when outputting
72  * messages in Citadel format (as opposed to RFC822 format).
73  */
74 char *msgkeys[] = {
75         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
76         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
77         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
78         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
79         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
80         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
81         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
82         NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 
83         NULL, 
84         "from",
85         NULL, NULL, NULL,
86         "exti",
87         "rfca",
88         NULL, 
89         "hnod",
90         "msgn",
91         "jrnl",
92         NULL, NULL,
93         "text",
94         "node",
95         "room",
96         "path",
97         NULL,
98         "rcpt",
99         "spec",
100         "time",
101         "subj",
102         NULL,
103         "wefw",
104         NULL,
105         "cccc",
106         NULL
107 };
108
109 /*
110  * This function is self explanatory.
111  * (What can I say, I'm in a weird mood today...)
112  */
113 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
114 {
115         int i;
116
117         for (i = 0; i < strlen(name); ++i) {
118                 if (name[i] == '@') {
119                         while (isspace(name[i - 1]) && i > 0) {
120                                 strcpy(&name[i - 1], &name[i]);
121                                 --i;
122                         }
123                         while (isspace(name[i + 1])) {
124                                 strcpy(&name[i + 1], &name[i + 2]);
125                         }
126                 }
127         }
128 }
129
130
131 /*
132  * Aliasing for network mail.
133  * (Error messages have been commented out, because this is a server.)
134  */
135 int alias(char *name)
136 {                               /* process alias and routing info for mail */
137         FILE *fp;
138         int a, i;
139         char aaa[SIZ], bbb[SIZ];
140         char *ignetcfg = NULL;
141         char *ignetmap = NULL;
142         int at = 0;
143         char node[64];
144         char testnode[64];
145         char buf[SIZ];
146
147         char original_name[256];
148         safestrncpy(original_name, name, sizeof original_name);
149
150         striplt(name);
151         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
152         stripallbut(name, '<', '>');
153
154         fp = fopen(file_mail_aliases, "r");
155         if (fp == NULL) {
156                 fp = fopen("/dev/null", "r");
157         }
158         if (fp == NULL) {
159                 return (MES_ERROR);
160         }
161         strcpy(aaa, "");
162         strcpy(bbb, "");
163         while (fgets(aaa, sizeof aaa, fp) != NULL) {
164                 while (isspace(name[0]))
165                         strcpy(name, &name[1]);
166                 aaa[strlen(aaa) - 1] = 0;
167                 strcpy(bbb, "");
168                 for (a = 0; a < strlen(aaa); ++a) {
169                         if (aaa[a] == ',') {
170                                 strcpy(bbb, &aaa[a + 1]);
171                                 aaa[a] = 0;
172                         }
173                 }
174                 if (!strcasecmp(name, aaa))
175                         strcpy(name, bbb);
176         }
177         fclose(fp);
178
179         /* Hit the Global Address Book */
180         if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
181                 strcpy(name, aaa);
182         }
183
184         if (strcasecmp(original_name, name)) {
185                 CtdlLogPrintf(CTDL_INFO, "%s is being forwarded to %s\n", original_name, name);
186         }
187
188         /* Change "user @ xxx" to "user" if xxx is an alias for this host */
189         for (a=0; a<strlen(name); ++a) {
190                 if (name[a] == '@') {
191                         if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
192                                 name[a] = 0;
193                                 CtdlLogPrintf(CTDL_INFO, "Changed to <%s>\n", name);
194                         }
195                 }
196         }
197
198         /* determine local or remote type, see citadel.h */
199         at = haschar(name, '@');
200         if (at == 0) return(MES_LOCAL);         /* no @'s - local address */
201         if (at > 1) return(MES_ERROR);          /* >1 @'s - invalid address */
202         remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
203
204         /* figure out the delivery mode */
205         extract_token(node, name, 1, '@', sizeof node);
206
207         /* If there are one or more dots in the nodename, we assume that it
208          * is an FQDN and will attempt SMTP delivery to the Internet.
209          */
210         if (haschar(node, '.') > 0) {
211                 return(MES_INTERNET);
212         }
213
214         /* Otherwise we look in the IGnet maps for a valid Citadel node.
215          * Try directly-connected nodes first...
216          */
217         ignetcfg = CtdlGetSysConfig(IGNETCFG);
218         for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
219                 extract_token(buf, ignetcfg, i, '\n', sizeof buf);
220                 extract_token(testnode, buf, 0, '|', sizeof testnode);
221                 if (!strcasecmp(node, testnode)) {
222                         free(ignetcfg);
223                         return(MES_IGNET);
224                 }
225         }
226         free(ignetcfg);
227
228         /*
229          * Then try nodes that are two or more hops away.
230          */
231         ignetmap = CtdlGetSysConfig(IGNETMAP);
232         for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
233                 extract_token(buf, ignetmap, i, '\n', sizeof buf);
234                 extract_token(testnode, buf, 0, '|', sizeof testnode);
235                 if (!strcasecmp(node, testnode)) {
236                         free(ignetmap);
237                         return(MES_IGNET);
238                 }
239         }
240         free(ignetmap);
241
242         /* If we get to this point it's an invalid node name */
243         return (MES_ERROR);
244 }
245
246
247 /*
248  * Back end for the MSGS command: output message number only.
249  */
250 void simple_listing(long msgnum, void *userdata)
251 {
252         cprintf("%ld\n", msgnum);
253 }
254
255
256
257 /*
258  * Back end for the MSGS command: output header summary.
259  */
260 void headers_listing(long msgnum, void *userdata)
261 {
262         struct CtdlMessage *msg;
263
264         msg = CtdlFetchMessage(msgnum, 0);
265         if (msg == NULL) {
266                 cprintf("%ld|0|||||\n", msgnum);
267                 return;
268         }
269
270         cprintf("%ld|%s|%s|%s|%s|%s|\n",
271                 msgnum,
272                 (msg->cm_fields['T'] ? msg->cm_fields['T'] : "0"),
273                 (msg->cm_fields['A'] ? msg->cm_fields['A'] : ""),
274                 (msg->cm_fields['N'] ? msg->cm_fields['N'] : ""),
275                 (msg->cm_fields['F'] ? msg->cm_fields['F'] : ""),
276                 (msg->cm_fields['U'] ? msg->cm_fields['U'] : "")
277         );
278         CtdlFreeMessage(msg);
279 }
280
281
282
283 /* Determine if a given message matches the fields in a message template.
284  * Return 0 for a successful match.
285  */
286 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
287         int i;
288
289         /* If there aren't any fields in the template, all messages will
290          * match.
291          */
292         if (template == NULL) return(0);
293
294         /* Null messages are bogus. */
295         if (msg == NULL) return(1);
296
297         for (i='A'; i<='Z'; ++i) {
298                 if (template->cm_fields[i] != NULL) {
299                         if (msg->cm_fields[i] == NULL) {
300                                 return 1;
301                         }
302                         if (strcasecmp(msg->cm_fields[i],
303                                 template->cm_fields[i])) return 1;
304                 }
305         }
306
307         /* All compares succeeded: we have a match! */
308         return 0;
309 }
310
311
312
313 /*
314  * Retrieve the "seen" message list for the current room.
315  */
316 void CtdlGetSeen(char *buf, int which_set) {
317         struct visit vbuf;
318
319         /* Learn about the user and room in question */
320         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
321
322         if (which_set == ctdlsetseen_seen)
323                 safestrncpy(buf, vbuf.v_seen, SIZ);
324         if (which_set == ctdlsetseen_answered)
325                 safestrncpy(buf, vbuf.v_answered, SIZ);
326 }
327
328
329
330 /*
331  * Manipulate the "seen msgs" string (or other message set strings)
332  */
333 void CtdlSetSeen(long *target_msgnums, int num_target_msgnums,
334                 int target_setting, int which_set,
335                 struct ctdluser *which_user, struct ctdlroom *which_room) {
336         struct cdbdata *cdbfr;
337         int i, j, k;
338         int is_seen = 0;
339         int was_seen = 0;
340         long lo = (-1L);
341         long hi = (-1L);
342         long t = (-1L);
343         int trimming = 0;
344         struct visit vbuf;
345         long *msglist;
346         int num_msgs = 0;
347         char vset[SIZ];
348         char *is_set;   /* actually an array of booleans */
349         int num_sets;
350         int s;
351         char setstr[SIZ], lostr[SIZ], histr[SIZ];
352         size_t tmp;
353
354         /* Don't bother doing *anything* if we were passed a list of zero messages */
355         if (num_target_msgnums < 1) {
356                 return;
357         }
358
359         CtdlLogPrintf(CTDL_DEBUG, "CtdlSetSeen(%d msgs starting with %ld, %d, %d)\n",
360                 num_target_msgnums, target_msgnums[0],
361                 target_setting, which_set);
362
363         /* Learn about the user and room in question */
364         CtdlGetRelationship(&vbuf,
365                 ((which_user != NULL) ? which_user : &CC->user),
366                 ((which_room != NULL) ? which_room : &CC->room)
367         );
368
369         /* Load the message list */
370         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
371         if (cdbfr != NULL) {
372                 msglist = (long *) cdbfr->ptr;
373                 cdbfr->ptr = NULL;      /* CtdlSetSeen() now owns this memory */
374                 num_msgs = cdbfr->len / sizeof(long);
375                 cdb_free(cdbfr);
376         } else {
377                 return; /* No messages at all?  No further action. */
378         }
379
380         is_set = malloc(num_msgs * sizeof(char));
381         memset(is_set, 0, (num_msgs * sizeof(char)) );
382
383         /* Decide which message set we're manipulating */
384         switch(which_set) {
385                 case ctdlsetseen_seen:
386                         safestrncpy(vset, vbuf.v_seen, sizeof vset);
387                         break;
388                 case ctdlsetseen_answered:
389                         safestrncpy(vset, vbuf.v_answered, sizeof vset);
390                         break;
391         }
392
393         /* CtdlLogPrintf(CTDL_DEBUG, "before optimize: %s\n", vset); */
394
395         /* Translate the existing sequence set into an array of booleans */
396         num_sets = num_tokens(vset, ',');
397         for (s=0; s<num_sets; ++s) {
398                 extract_token(setstr, vset, s, ',', sizeof setstr);
399
400                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
401                 if (num_tokens(setstr, ':') >= 2) {
402                         extract_token(histr, setstr, 1, ':', sizeof histr);
403                         if (!strcmp(histr, "*")) {
404                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
405                         }
406                 }
407                 else {
408                         strcpy(histr, lostr);
409                 }
410                 lo = atol(lostr);
411                 hi = atol(histr);
412
413                 for (i = 0; i < num_msgs; ++i) {
414                         if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
415                                 is_set[i] = 1;
416                         }
417                 }
418         }
419
420         /* Now translate the array of booleans back into a sequence set */
421         strcpy(vset, "");
422         lo = (-1L);
423         hi = (-1L);
424
425         for (i=0; i<num_msgs; ++i) {
426
427                 is_seen = is_set[i];    /* Default to existing setting */
428
429                 for (k=0; k<num_target_msgnums; ++k) {
430                         if (msglist[i] == target_msgnums[k]) {
431                                 is_seen = target_setting;
432                         }
433                 }
434
435                 if (is_seen) {
436                         if (lo < 0L) lo = msglist[i];
437                         hi = msglist[i];
438                 }
439
440                 if (  ((is_seen == 0) && (was_seen == 1))
441                    || ((is_seen == 1) && (i == num_msgs-1)) ) {
442
443                         /* begin trim-o-matic code */
444                         j=9;
445                         trimming = 0;
446                         while ( (strlen(vset) + 20) > sizeof vset) {
447                                 remove_token(vset, 0, ',');
448                                 trimming = 1;
449                                 if (j--) break; /* loop no more than 9 times */
450                         }
451                         if ( (trimming) && (which_set == ctdlsetseen_seen) ) {
452                                 t = atol(vset);
453                                 if (t<2) t=2;
454                                 --t;
455                                 snprintf(lostr, sizeof lostr,
456                                         "1:%ld,%s", t, vset);
457                                 safestrncpy(vset, lostr, sizeof vset);
458                         }
459                         /* end trim-o-matic code */
460
461                         tmp = strlen(vset);
462                         if (tmp > 0) {
463                                 strcat(vset, ",");
464                                 ++tmp;
465                         }
466                         if (lo == hi) {
467                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
468                                          "%ld", lo);
469                         }
470                         else {
471                                 snprintf(&vset[tmp], (sizeof vset) - tmp,
472                                          "%ld:%ld", lo, hi);
473                         }
474                         lo = (-1L);
475                         hi = (-1L);
476                 }
477                 was_seen = is_seen;
478         }
479
480         /* Decide which message set we're manipulating */
481         switch (which_set) {
482                 case ctdlsetseen_seen:
483                         safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
484                         break;
485                 case ctdlsetseen_answered:
486                         safestrncpy(vbuf.v_answered, vset,
487                                                 sizeof vbuf.v_answered);
488                         break;
489         }
490         free(is_set);
491
492         /* CtdlLogPrintf(CTDL_DEBUG, " after optimize: %s\n", vset); */
493         free(msglist);
494         CtdlSetRelationship(&vbuf,
495                 ((which_user != NULL) ? which_user : &CC->user),
496                 ((which_room != NULL) ? which_room : &CC->room)
497         );
498 }
499
500
501 /*
502  * API function to perform an operation for each qualifying message in the
503  * current room.  (Returns the number of messages processed.)
504  */
505 int CtdlForEachMessage(int mode, long ref, char *search_string,
506                         char *content_type,
507                         struct CtdlMessage *compare,
508                         void (*CallBack) (long, void *),
509                         void *userdata)
510 {
511
512         int a, i, j;
513         struct visit vbuf;
514         struct cdbdata *cdbfr;
515         long *msglist = NULL;
516         int num_msgs = 0;
517         int num_processed = 0;
518         long thismsg;
519         struct MetaData smi;
520         struct CtdlMessage *msg = NULL;
521         int is_seen = 0;
522         long lastold = 0L;
523         int printed_lastold = 0;
524         int num_search_msgs = 0;
525         long *search_msgs = NULL;
526         regex_t re;
527         int need_to_free_re = 0;
528         regmatch_t pm;
529
530         if (content_type) if (!IsEmptyStr(content_type)) {
531                 regcomp(&re, content_type, 0);
532                 need_to_free_re = 1;
533         }
534
535         /* Learn about the user and room in question */
536         getuser(&CC->user, CC->curr_user);
537         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
538
539         /* Load the message list */
540         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
541         if (cdbfr != NULL) {
542                 msglist = (long *) cdbfr->ptr;
543                 num_msgs = cdbfr->len / sizeof(long);
544         } else {
545                 if (need_to_free_re) regfree(&re);
546                 return 0;       /* No messages at all?  No further action. */
547         }
548
549
550         /*
551          * Now begin the traversal.
552          */
553         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
554
555                 /* If the caller is looking for a specific MIME type, filter
556                  * out all messages which are not of the type requested.
557                  */
558                 if (content_type != NULL) if (!IsEmptyStr(content_type)) {
559
560                         /* This call to GetMetaData() sits inside this loop
561                          * so that we only do the extra database read per msg
562                          * if we need to.  Doing the extra read all the time
563                          * really kills the server.  If we ever need to use
564                          * metadata for another search criterion, we need to
565                          * move the read somewhere else -- but still be smart
566                          * enough to only do the read if the caller has
567                          * specified something that will need it.
568                          */
569                         GetMetaData(&smi, msglist[a]);
570
571                         /* if (strcasecmp(smi.meta_content_type, content_type)) { old non-regex way */
572                         if (regexec(&re, smi.meta_content_type, 1, &pm, 0) != 0) {
573                                 msglist[a] = 0L;
574                         }
575                 }
576         }
577
578         num_msgs = sort_msglist(msglist, num_msgs);
579
580         /* If a template was supplied, filter out the messages which
581          * don't match.  (This could induce some delays!)
582          */
583         if (num_msgs > 0) {
584                 if (compare != NULL) {
585                         for (a = 0; a < num_msgs; ++a) {
586                                 msg = CtdlFetchMessage(msglist[a], 1);
587                                 if (msg != NULL) {
588                                         if (CtdlMsgCmp(msg, compare)) {
589                                                 msglist[a] = 0L;
590                                         }
591                                         CtdlFreeMessage(msg);
592                                 }
593                         }
594                 }
595         }
596
597         /* If a search string was specified, get a message list from
598          * the full text index and remove messages which aren't on both
599          * lists.
600          *
601          * How this works:
602          * Since the lists are sorted and strictly ascending, and the
603          * output list is guaranteed to be shorter than or equal to the
604          * input list, we overwrite the bottom of the input list.  This
605          * eliminates the need to memmove big chunks of the list over and
606          * over again.
607          */
608         if ( (num_msgs > 0) && (mode == MSGS_SEARCH) && (search_string) ) {
609
610                 /* Call search module via hook mechanism.
611                  * NULL means use any search function available.
612                  * otherwise replace with a char * to name of search routine
613                  */
614                 CtdlModuleDoSearch(&num_search_msgs, &search_msgs, search_string, "fulltext");
615
616                 if (num_search_msgs > 0) {
617         
618                         int orig_num_msgs;
619
620                         orig_num_msgs = num_msgs;
621                         num_msgs = 0;
622                         for (i=0; i<orig_num_msgs; ++i) {
623                                 for (j=0; j<num_search_msgs; ++j) {
624                                         if (msglist[i] == search_msgs[j]) {
625                                                 msglist[num_msgs++] = msglist[i];
626                                         }
627                                 }
628                         }
629                 }
630                 else {
631                         num_msgs = 0;   /* No messages qualify */
632                 }
633                 if (search_msgs != NULL) free(search_msgs);
634
635                 /* Now that we've purged messages which don't contain the search
636                  * string, treat a MSGS_SEARCH just like a MSGS_ALL from this
637                  * point on.
638                  */
639                 mode = MSGS_ALL;
640         }
641
642         /*
643          * Now iterate through the message list, according to the
644          * criteria supplied by the caller.
645          */
646         if (num_msgs > 0)
647                 for (a = 0; a < num_msgs; ++a) {
648                         thismsg = msglist[a];
649                         if (mode == MSGS_ALL) {
650                                 is_seen = 0;
651                         }
652                         else {
653                                 is_seen = is_msg_in_sequence_set(
654                                                         vbuf.v_seen, thismsg);
655                                 if (is_seen) lastold = thismsg;
656                         }
657                         if ((thismsg > 0L)
658                             && (
659
660                                        (mode == MSGS_ALL)
661                                        || ((mode == MSGS_OLD) && (is_seen))
662                                        || ((mode == MSGS_NEW) && (!is_seen))
663                                        || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
664                                    || ((mode == MSGS_FIRST) && (a < ref))
665                                 || ((mode == MSGS_GT) && (thismsg > ref))
666                                 || ((mode == MSGS_EQ) && (thismsg == ref))
667                             )
668                             ) {
669                                 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
670                                         if (CallBack)
671                                                 CallBack(lastold, userdata);
672                                         printed_lastold = 1;
673                                         ++num_processed;
674                                 }
675                                 if (CallBack) CallBack(thismsg, userdata);
676                                 ++num_processed;
677                         }
678                 }
679         cdb_free(cdbfr);        /* Clean up */
680         if (need_to_free_re) regfree(&re);
681         return num_processed;
682 }
683
684
685
686 /*
687  * cmd_msgs()  -  get list of message #'s in this room
688  *              implements the MSGS server command using CtdlForEachMessage()
689  */
690 void cmd_msgs(char *cmdbuf)
691 {
692         int mode = 0;
693         char which[16];
694         char buf[256];
695         char tfield[256];
696         char tvalue[256];
697         int cm_ref = 0;
698         int i;
699         int with_template = 0;
700         struct CtdlMessage *template = NULL;
701         int with_headers = 0;
702         char search_string[1024];
703
704         extract_token(which, cmdbuf, 0, '|', sizeof which);
705         cm_ref = extract_int(cmdbuf, 1);
706         extract_token(search_string, cmdbuf, 1, '|', sizeof search_string);
707         with_template = extract_int(cmdbuf, 2);
708         with_headers = extract_int(cmdbuf, 3);
709
710         strcat(which, "   ");
711         if (!strncasecmp(which, "OLD", 3))
712                 mode = MSGS_OLD;
713         else if (!strncasecmp(which, "NEW", 3))
714                 mode = MSGS_NEW;
715         else if (!strncasecmp(which, "FIRST", 5))
716                 mode = MSGS_FIRST;
717         else if (!strncasecmp(which, "LAST", 4))
718                 mode = MSGS_LAST;
719         else if (!strncasecmp(which, "GT", 2))
720                 mode = MSGS_GT;
721         else if (!strncasecmp(which, "SEARCH", 6))
722                 mode = MSGS_SEARCH;
723         else
724                 mode = MSGS_ALL;
725
726         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
727                 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
728                 return;
729         }
730
731         if ( (mode == MSGS_SEARCH) && (!config.c_enable_fulltext) ) {
732                 cprintf("%d Full text index is not enabled on this server.\n",
733                         ERROR + CMD_NOT_SUPPORTED);
734                 return;
735         }
736
737         if (with_template) {
738                 unbuffer_output();
739                 cprintf("%d Send template then receive message list\n",
740                         START_CHAT_MODE);
741                 template = (struct CtdlMessage *)
742                         malloc(sizeof(struct CtdlMessage));
743                 memset(template, 0, sizeof(struct CtdlMessage));
744                 template->cm_magic = CTDLMESSAGE_MAGIC;
745                 template->cm_anon_type = MES_NORMAL;
746
747                 while(client_getln(buf, sizeof buf) >= 0 && strcmp(buf,"000")) {
748                         extract_token(tfield, buf, 0, '|', sizeof tfield);
749                         extract_token(tvalue, buf, 1, '|', sizeof tvalue);
750                         for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
751                                 if (!strcasecmp(tfield, msgkeys[i])) {
752                                         template->cm_fields[i] =
753                                                 strdup(tvalue);
754                                 }
755                         }
756                 }
757                 buffer_output();
758         }
759         else {
760                 cprintf("%d  \n", LISTING_FOLLOWS);
761         }
762
763         CtdlForEachMessage(mode,
764                         ( (mode == MSGS_SEARCH) ? 0 : cm_ref ),
765                         ( (mode == MSGS_SEARCH) ? search_string : NULL ),
766                         NULL,
767                         template,
768                         (with_headers ? headers_listing : simple_listing),
769                         NULL
770         );
771         if (template != NULL) CtdlFreeMessage(template);
772         cprintf("000\n");
773 }
774
775
776
777
778 /* 
779  * help_subst()  -  support routine for help file viewer
780  */
781 void help_subst(char *strbuf, char *source, char *dest)
782 {
783         char workbuf[SIZ];
784         int p;
785
786         while (p = pattern2(strbuf, source), (p >= 0)) {
787                 strcpy(workbuf, &strbuf[p + strlen(source)]);
788                 strcpy(&strbuf[p], dest);
789                 strcat(strbuf, workbuf);
790         }
791 }
792
793
794 void do_help_subst(char *buffer)
795 {
796         char buf2[16];
797
798         help_subst(buffer, "^nodename", config.c_nodename);
799         help_subst(buffer, "^humannode", config.c_humannode);
800         help_subst(buffer, "^fqdn", config.c_fqdn);
801         help_subst(buffer, "^username", CC->user.fullname);
802         snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
803         help_subst(buffer, "^usernum", buf2);
804         help_subst(buffer, "^sysadm", config.c_sysadm);
805         help_subst(buffer, "^variantname", CITADEL);
806         snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
807         help_subst(buffer, "^maxsessions", buf2);
808         help_subst(buffer, "^bbsdir", ctdl_message_dir);
809 }
810
811
812
813 /*
814  * memfmout()  -  Citadel text formatter and paginator.
815  *           Although the original purpose of this routine was to format
816  *           text to the reader's screen width, all we're really using it
817  *           for here is to format text out to 80 columns before sending it
818  *           to the client.  The client software may reformat it again.
819  */
820 void memfmout(
821         char *mptr,             /* where are we going to get our text from? */
822         char subst,             /* nonzero if we should do substitutions */
823         char *nl)               /* string to terminate lines with */
824 {
825         int a, b, c;
826         int real = 0;
827         int old = 0;
828         cit_uint8_t ch;
829         char aaa[140];
830         char buffer[SIZ];
831         static int width = 80;
832
833         strcpy(aaa, "");
834         old = 255;
835         strcpy(buffer, "");
836         c = 1;                  /* c is the current pos */
837
838         do {
839                 if (subst) {
840                         while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
841                                 ch = *mptr++;
842                                 buffer[strlen(buffer) + 1] = 0;
843                                 buffer[strlen(buffer)] = ch;
844                         }
845
846                         if (buffer[0] == '^')
847                                 do_help_subst(buffer);
848
849                         buffer[strlen(buffer) + 1] = 0;
850                         a = buffer[0];
851                         strcpy(buffer, &buffer[1]);
852                 } else {
853                         ch = *mptr++;
854                 }
855
856                 old = real;
857                 real = ch;
858
859                 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10)) {
860                         ch = 32;
861                 }
862                 if (((old == 13) || (old == 10)) && (isspace(real))) {
863                         cprintf("%s", nl);
864                         c = 1;
865                 }
866                 if (ch > 32) {
867                         if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
868                                 cprintf("%s%s", nl, aaa);
869                                 c = strlen(aaa);
870                                 aaa[0] = 0;
871                         }
872                         b = strlen(aaa);
873                         aaa[b] = ch;
874                         aaa[b + 1] = 0;
875                 }
876                 if (ch == 32) {
877                         if ((strlen(aaa) + c) > (width - 5)) {
878                                 cprintf("%s", nl);
879                                 c = 1;
880                         }
881                         cprintf("%s ", aaa);
882                         ++c;
883                         c = c + strlen(aaa);
884                         strcpy(aaa, "");
885                 }
886                 if ((ch == 13) || (ch == 10)) {
887                         cprintf("%s%s", aaa, nl);
888                         c = 1;
889                         strcpy(aaa, "");
890                 }
891
892         } while (ch > 0);
893
894         cprintf("%s%s", aaa, nl);
895 }
896
897
898
899 /*
900  * Callback function for mime parser that simply lists the part
901  */
902 void list_this_part(char *name, char *filename, char *partnum, char *disp,
903                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
904                     void *cbuserdata)
905 {
906         struct ma_info *ma;
907         
908         ma = (struct ma_info *)cbuserdata;
909         if (ma->is_ma == 0) {
910                 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
911                         name, filename, partnum, disp, cbtype, (long)length);
912         }
913 }
914
915 /* 
916  * Callback function for multipart prefix
917  */
918 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
919                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
920                     void *cbuserdata)
921 {
922         struct ma_info *ma;
923         
924         ma = (struct ma_info *)cbuserdata;
925         if (!strcasecmp(cbtype, "multipart/alternative")) {
926                 ++ma->is_ma;
927         }
928
929         if (ma->is_ma == 0) {
930                 cprintf("pref=%s|%s\n", partnum, cbtype);
931         }
932 }
933
934 /* 
935  * Callback function for multipart sufffix
936  */
937 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
938                     void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
939                     void *cbuserdata)
940 {
941         struct ma_info *ma;
942         
943         ma = (struct ma_info *)cbuserdata;
944         if (ma->is_ma == 0) {
945                 cprintf("suff=%s|%s\n", partnum, cbtype);
946         }
947         if (!strcasecmp(cbtype, "multipart/alternative")) {
948                 --ma->is_ma;
949         }
950 }
951
952
953 /*
954  * Callback function for mime parser that opens a section for downloading
955  */
956 void mime_download(char *name, char *filename, char *partnum, char *disp,
957                    void *content, char *cbtype, char *cbcharset, size_t length,
958                    char *encoding, void *cbuserdata)
959 {
960
961         /* Silently go away if there's already a download open... */
962         if (CC->download_fp != NULL)
963                 return;
964
965         /* ...or if this is not the desired section */
966         if (strcasecmp(CC->download_desired_section, partnum))
967                 return;
968
969         CC->download_fp = tmpfile();
970         if (CC->download_fp == NULL)
971                 return;
972
973         fwrite(content, length, 1, CC->download_fp);
974         fflush(CC->download_fp);
975         rewind(CC->download_fp);
976
977         OpenCmdResult(filename, cbtype);
978 }
979
980
981
982 /*
983  * Callback function for mime parser that outputs a section all at once
984  */
985 void mime_spew_section(char *name, char *filename, char *partnum, char *disp,
986                    void *content, char *cbtype, char *cbcharset, size_t length,
987                    char *encoding, void *cbuserdata)
988 {
989         int *found_it = (int *)cbuserdata;
990
991         /* ...or if this is not the desired section */
992         if (strcasecmp(CC->download_desired_section, partnum))
993                 return;
994
995         *found_it = 1;
996
997         cprintf("%d %d\n", BINARY_FOLLOWS, (int)length);
998         client_write(content, length);
999 }
1000
1001
1002
1003 /*
1004  * Load a message from disk into memory.
1005  * This is used by CtdlOutputMsg() and other fetch functions.
1006  *
1007  * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
1008  *       using the CtdlMessageFree() function.
1009  */
1010 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
1011 {
1012         struct cdbdata *dmsgtext;
1013         struct CtdlMessage *ret = NULL;
1014         char *mptr;
1015         char *upper_bound;
1016         cit_uint8_t ch;
1017         cit_uint8_t field_header;
1018
1019         CtdlLogPrintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
1020
1021         dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
1022         if (dmsgtext == NULL) {
1023                 return NULL;
1024         }
1025         mptr = dmsgtext->ptr;
1026         upper_bound = mptr + dmsgtext->len;
1027
1028         /* Parse the three bytes that begin EVERY message on disk.
1029          * The first is always 0xFF, the on-disk magic number.
1030          * The second is the anonymous/public type byte.
1031          * The third is the format type byte (vari, fixed, or MIME).
1032          */
1033         ch = *mptr++;
1034         if (ch != 255) {
1035                 CtdlLogPrintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
1036                 cdb_free(dmsgtext);
1037                 return NULL;
1038         }
1039         ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1040         memset(ret, 0, sizeof(struct CtdlMessage));
1041
1042         ret->cm_magic = CTDLMESSAGE_MAGIC;
1043         ret->cm_anon_type = *mptr++;    /* Anon type byte */
1044         ret->cm_format_type = *mptr++;  /* Format type byte */
1045
1046         /*
1047          * The rest is zero or more arbitrary fields.  Load them in.
1048          * We're done when we encounter either a zero-length field or
1049          * have just processed the 'M' (message text) field.
1050          */
1051         do {
1052                 if (mptr >= upper_bound) {
1053                         break;
1054                 }
1055                 field_header = *mptr++;
1056                 ret->cm_fields[field_header] = strdup(mptr);
1057
1058                 while (*mptr++ != 0);   /* advance to next field */
1059
1060         } while ((mptr < upper_bound) && (field_header != 'M'));
1061
1062         cdb_free(dmsgtext);
1063
1064         /* Always make sure there's something in the msg text field.  If
1065          * it's NULL, the message text is most likely stored separately,
1066          * so go ahead and fetch that.  Failing that, just set a dummy
1067          * body so other code doesn't barf.
1068          */
1069         if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
1070                 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
1071                 if (dmsgtext != NULL) {
1072                         ret->cm_fields['M'] = strdup(dmsgtext->ptr);
1073                         cdb_free(dmsgtext);
1074                 }
1075         }
1076         if (ret->cm_fields['M'] == NULL) {
1077                 ret->cm_fields['M'] = strdup("\r\n\r\n (no text)\r\n");
1078         }
1079
1080         /* Perform "before read" hooks (aborting if any return nonzero) */
1081         if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
1082                 CtdlFreeMessage(ret);
1083                 return NULL;
1084         }
1085
1086         return (ret);
1087 }
1088
1089
1090 /*
1091  * Returns 1 if the supplied pointer points to a valid Citadel message.
1092  * If the pointer is NULL or the magic number check fails, returns 0.
1093  */
1094 int is_valid_message(struct CtdlMessage *msg) {
1095         if (msg == NULL)
1096                 return 0;
1097         if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1098                 CtdlLogPrintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1099                 return 0;
1100         }
1101         return 1;
1102 }
1103
1104
1105 /*
1106  * 'Destructor' for struct CtdlMessage
1107  */
1108 void CtdlFreeMessage(struct CtdlMessage *msg)
1109 {
1110         int i;
1111
1112         if (is_valid_message(msg) == 0) 
1113         {
1114                 if (msg != NULL) free (msg);
1115                 return;
1116         }
1117
1118         for (i = 0; i < 256; ++i)
1119                 if (msg->cm_fields[i] != NULL) {
1120                         free(msg->cm_fields[i]);
1121                 }
1122
1123         msg->cm_magic = 0;      /* just in case */
1124         free(msg);
1125 }
1126
1127
1128 /*
1129  * Pre callback function for multipart/alternative
1130  *
1131  * NOTE: this differs from the standard behavior for a reason.  Normally when
1132  *       displaying multipart/alternative you want to show the _last_ usable
1133  *       format in the message.  Here we show the _first_ one, because it's
1134  *       usually text/plain.  Since this set of functions is designed for text
1135  *       output to non-MIME-aware clients, this is the desired behavior.
1136  *
1137  */
1138 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1139                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1140                 void *cbuserdata)
1141 {
1142         struct ma_info *ma;
1143         
1144         ma = (struct ma_info *)cbuserdata;
1145         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);    
1146         if (!strcasecmp(cbtype, "multipart/alternative")) {
1147                 ++ma->is_ma;
1148                 ma->did_print = 0;
1149         }
1150         if (!strcasecmp(cbtype, "message/rfc822")) {
1151                 ++ma->freeze;
1152         }
1153 }
1154
1155 /*
1156  * Post callback function for multipart/alternative
1157  */
1158 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1159                 void *content, char *cbtype, char *cbcharset, size_t length,
1160                 char *encoding, void *cbuserdata)
1161 {
1162         struct ma_info *ma;
1163         
1164         ma = (struct ma_info *)cbuserdata;
1165         CtdlLogPrintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);   
1166         if (!strcasecmp(cbtype, "multipart/alternative")) {
1167                 --ma->is_ma;
1168                 ma->did_print = 0;
1169         }
1170         if (!strcasecmp(cbtype, "message/rfc822")) {
1171                 --ma->freeze;
1172         }
1173 }
1174
1175 /*
1176  * Inline callback function for mime parser that wants to display text
1177  */
1178 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1179                 void *content, char *cbtype, char *cbcharset, size_t length,
1180                 char *encoding, void *cbuserdata)
1181 {
1182         char *ptr;
1183         char *wptr;
1184         size_t wlen;
1185         struct ma_info *ma;
1186
1187         ma = (struct ma_info *)cbuserdata;
1188
1189         CtdlLogPrintf(CTDL_DEBUG,
1190                 "fixed_output() part %s: %s (%s) (%ld bytes)\n",
1191                 partnum, filename, cbtype, (long)length);
1192
1193         /*
1194          * If we're in the middle of a multipart/alternative scope and
1195          * we've already printed another section, skip this one.
1196          */     
1197         if ( (ma->is_ma) && (ma->did_print) ) {
1198                 CtdlLogPrintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1199                 return;
1200         }
1201         ma->did_print = 1;
1202
1203         if ( (!strcasecmp(cbtype, "text/plain")) 
1204            || (IsEmptyStr(cbtype)) ) {
1205                 wptr = content;
1206                 if (length > 0) {
1207                         client_write(wptr, length);
1208                         if (wptr[length-1] != '\n') {
1209                                 cprintf("\n");
1210                         }
1211                 }
1212                 return;
1213         }
1214
1215         if (!strcasecmp(cbtype, "text/html")) {
1216                 ptr = html_to_ascii(content, length, 80, 0);
1217                 wlen = strlen(ptr);
1218                 client_write(ptr, wlen);
1219                 if (ptr[wlen-1] != '\n') {
1220                         cprintf("\n");
1221                 }
1222                 free(ptr);
1223                 return;
1224         }
1225
1226         if (ma->use_fo_hooks) {
1227                 if (PerformFixedOutputHooks(cbtype, content, length)) {
1228                 /* above function returns nonzero if it handled the part */
1229                         return;
1230                 }
1231         }
1232
1233         if (strncasecmp(cbtype, "multipart/", 10)) {
1234                 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1235                         partnum, filename, cbtype, (long)length);
1236                 return;
1237         }
1238 }
1239
1240 /*
1241  * The client is elegant and sophisticated and wants to be choosy about
1242  * MIME content types, so figure out which multipart/alternative part
1243  * we're going to send.
1244  *
1245  * We use a system of weights.  When we find a part that matches one of the
1246  * MIME types we've declared as preferential, we can store it in ma->chosen_part
1247  * and then set ma->chosen_pref to that MIME type's position in our preference
1248  * list.  If we then hit another match, we only replace the first match if
1249  * the preference value is lower.
1250  */
1251 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1252                 void *content, char *cbtype, char *cbcharset, size_t length,
1253                 char *encoding, void *cbuserdata)
1254 {
1255         char buf[1024];
1256         int i;
1257         struct ma_info *ma;
1258         
1259         ma = (struct ma_info *)cbuserdata;
1260
1261         // NOTE: REMOVING THIS CONDITIONAL FIXES BUG 220
1262         //       http://bugzilla.citadel.org/show_bug.cgi?id=220
1263         // I don't know if there are any side effects!  Please TEST TEST TEST
1264         //if (ma->is_ma > 0) {
1265
1266         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1267                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1268                 if ( (!strcasecmp(buf, cbtype)) && (!ma->freeze) ) {
1269                         if (i < ma->chosen_pref) {
1270                                 CtdlLogPrintf(CTDL_DEBUG, "Setting chosen part: <%s>\n", partnum);
1271                                 safestrncpy(ma->chosen_part, partnum, sizeof ma->chosen_part);
1272                                 ma->chosen_pref = i;
1273                         }
1274                 }
1275         }
1276 }
1277
1278 /*
1279  * Now that we've chosen our preferred part, output it.
1280  */
1281 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1282                 void *content, char *cbtype, char *cbcharset, size_t length,
1283                 char *encoding, void *cbuserdata)
1284 {
1285         int i;
1286         char buf[128];
1287         int add_newline = 0;
1288         char *text_content;
1289         struct ma_info *ma;
1290         
1291         ma = (struct ma_info *)cbuserdata;
1292
1293         /* This is not the MIME part you're looking for... */
1294         if (strcasecmp(partnum, ma->chosen_part)) return;
1295
1296         /* If the content-type of this part is in our preferred formats
1297          * list, we can simply output it verbatim.
1298          */
1299         for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1300                 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1301                 if (!strcasecmp(buf, cbtype)) {
1302                         /* Yeah!  Go!  W00t!! */
1303
1304                         text_content = (char *)content;
1305                         if (text_content[length-1] != '\n') {
1306                                 ++add_newline;
1307                         }
1308                         cprintf("Content-type: %s", cbtype);
1309                         if (!IsEmptyStr(cbcharset)) {
1310                                 cprintf("; charset=%s", cbcharset);
1311                         }
1312                         cprintf("\nContent-length: %d\n",
1313                                 (int)(length + add_newline) );
1314                         if (!IsEmptyStr(encoding)) {
1315                                 cprintf("Content-transfer-encoding: %s\n", encoding);
1316                         }
1317                         else {
1318                                 cprintf("Content-transfer-encoding: 7bit\n");
1319                         }
1320                         cprintf("X-Citadel-MSG4-Partnum: %s\n", partnum);
1321                         cprintf("\n");
1322                         client_write(content, length);
1323                         if (add_newline) cprintf("\n");
1324                         return;
1325                 }
1326         }
1327
1328         /* No translations required or possible: output as text/plain */
1329         cprintf("Content-type: text/plain\n\n");
1330         fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1331                         length, encoding, cbuserdata);
1332 }
1333
1334
1335 struct encapmsg {
1336         char desired_section[64];
1337         char *msg;
1338         size_t msglen;
1339 };
1340
1341
1342 /*
1343  * Callback function for
1344  */
1345 void extract_encapsulated_message(char *name, char *filename, char *partnum, char *disp,
1346                    void *content, char *cbtype, char *cbcharset, size_t length,
1347                    char *encoding, void *cbuserdata)
1348 {
1349         struct encapmsg *encap;
1350
1351         encap = (struct encapmsg *)cbuserdata;
1352
1353         /* Only proceed if this is the desired section... */
1354         if (!strcasecmp(encap->desired_section, partnum)) {
1355                 encap->msglen = length;
1356                 encap->msg = malloc(length + 2);
1357                 memcpy(encap->msg, content, length);
1358                 return;
1359         }
1360
1361 }
1362
1363
1364
1365
1366 /*
1367  * Get a message off disk.  (returns om_* values found in msgbase.h)
1368  * 
1369  */
1370 int CtdlOutputMsg(long msg_num,         /* message number (local) to fetch */
1371                   int mode,             /* how would you like that message? */
1372                   int headers_only,     /* eschew the message body? */
1373                   int do_proto,         /* do Citadel protocol responses? */
1374                   int crlf,             /* Use CRLF newlines instead of LF? */
1375                   char *section,        /* NULL or a message/rfc822 section */
1376                   int flags             /* should the bessage be exported clean? */
1377 ) {
1378         struct CtdlMessage *TheMessage = NULL;
1379         int retcode = om_no_such_msg;
1380         struct encapmsg encap;
1381
1382         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d, section=%s\n", 
1383                 msg_num, mode,
1384                 (section ? section : "<>")
1385         );
1386
1387         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1388                 if (do_proto) cprintf("%d Not logged in.\n",
1389                         ERROR + NOT_LOGGED_IN);
1390                 return(om_not_logged_in);
1391         }
1392
1393         /* FIXME: check message id against msglist for this room */
1394
1395         /*
1396          * Fetch the message from disk.  If we're in any sort of headers
1397          * only mode, request that we don't even bother loading the body
1398          * into memory.
1399          */
1400         if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1401                 TheMessage = CtdlFetchMessage(msg_num, 0);
1402         }
1403         else {
1404                 TheMessage = CtdlFetchMessage(msg_num, 1);
1405         }
1406
1407         if (TheMessage == NULL) {
1408                 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1409                         ERROR + MESSAGE_NOT_FOUND, msg_num);
1410                 return(om_no_such_msg);
1411         }
1412
1413         /* Here is the weird form of this command, to process only an
1414          * encapsulated message/rfc822 section.
1415          */
1416         if (section) if (!IsEmptyStr(section)) if (strcmp(section, "0")) {
1417                 memset(&encap, 0, sizeof encap);
1418                 safestrncpy(encap.desired_section, section, sizeof encap.desired_section);
1419                 mime_parser(TheMessage->cm_fields['M'],
1420                         NULL,
1421                         *extract_encapsulated_message,
1422                         NULL, NULL, (void *)&encap, 0
1423                 );
1424                 CtdlFreeMessage(TheMessage);
1425                 TheMessage = NULL;
1426
1427                 if (encap.msg) {
1428                         encap.msg[encap.msglen] = 0;
1429                         TheMessage = convert_internet_message(encap.msg);
1430                         encap.msg = NULL;       /* no free() here, TheMessage owns it now */
1431
1432                         /* Now we let it fall through to the bottom of this
1433                          * function, because TheMessage now contains the
1434                          * encapsulated message instead of the top-level
1435                          * message.  Isn't that neat?
1436                          */
1437
1438                 }
1439                 else {
1440                         if (do_proto) cprintf("%d msg %ld has no part %s\n",
1441                                 ERROR + MESSAGE_NOT_FOUND, msg_num, section);
1442                         retcode = om_no_such_msg;
1443                 }
1444
1445         }
1446
1447         /* Ok, output the message now */
1448         retcode = CtdlOutputPreLoadedMsg(TheMessage, mode, headers_only, do_proto, crlf, flags);
1449         CtdlFreeMessage(TheMessage);
1450
1451         return(retcode);
1452 }
1453
1454
1455 char *qp_encode_email_addrs(char *source)
1456 {
1457         char user[256], node[256], name[256];
1458         const char headerStr[] = "=?UTF-8?Q?";
1459         char *Encoded;
1460         char *EncodedName;
1461         char *nPtr;
1462         int need_to_encode = 0;
1463         long SourceLen;
1464         long EncodedMaxLen;
1465         long nColons = 0;
1466         long *AddrPtr;
1467         long *AddrUtf8;
1468         long nAddrPtrMax = 50;
1469         long nmax;
1470         int InQuotes = 0;
1471         int i, n;
1472
1473         if (source == NULL) return source;
1474         if (IsEmptyStr(source)) return source;
1475
1476         AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
1477         AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
1478         memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
1479         *AddrPtr = 0;
1480         i = 0;
1481         while (!IsEmptyStr (&source[i])) {
1482                 if (nColons >= nAddrPtrMax){
1483                         long *ptr;
1484
1485                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1486                         memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
1487                         free (AddrPtr), AddrPtr = ptr;
1488
1489                         ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
1490                         memset(&ptr[nAddrPtrMax], 0, 
1491                                sizeof (long) * nAddrPtrMax);
1492
1493                         memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
1494                         free (AddrUtf8), AddrUtf8 = ptr;
1495                         nAddrPtrMax *= 2;                               
1496                 }
1497                 if (((unsigned char) source[i] < 32) || 
1498                     ((unsigned char) source[i] > 126)) {
1499                         need_to_encode = 1;
1500                         AddrUtf8[nColons] = 1;
1501                 }
1502                 if (source[i] == '"')
1503                         InQuotes = !InQuotes;
1504                 if (!InQuotes && source[i] == ',') {
1505                         AddrPtr[nColons] = i;
1506                         nColons++;
1507                 }
1508                 i++;
1509         }
1510         if (need_to_encode == 0) {
1511                 free(AddrPtr);
1512                 free(AddrUtf8);
1513                 return source;
1514         }
1515
1516         SourceLen = i;
1517         EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
1518         Encoded = (char*) malloc (EncodedMaxLen);
1519
1520         for (i = 1; i <= nColons; i++)
1521                 source[AddrPtr[i]++] = '\0';
1522
1523         nPtr = Encoded;
1524         *nPtr = '\0';
1525         for (i = 0; i <= nColons && nPtr != NULL; i++) {
1526                 nmax = EncodedMaxLen - (nPtr - Encoded);
1527                 if (AddrUtf8[i]) {
1528                         process_rfc822_addr(&source[AddrPtr[i]], 
1529                                             user,
1530                                             node,
1531                                             name);
1532                         /* TODO: libIDN here ! */
1533                         if (IsEmptyStr(name)) {
1534                                 n = snprintf(nPtr, nmax, 
1535                                              (i==0)?"%s@%s" : ",%s@%s",
1536                                              user, node);
1537                         }
1538                         else {
1539                                 EncodedName = rfc2047encode(name, strlen(name));                        
1540                                 n = snprintf(nPtr, nmax, 
1541                                              (i==0)?"%s <%s@%s>" : ",%s <%s@%s>",
1542                                              EncodedName, user, node);
1543                                 free(EncodedName);
1544                         }
1545                 }
1546                 else { 
1547                         n = snprintf(nPtr, nmax, 
1548                                      (i==0)?"%s" : ",%s",
1549                                      &source[AddrPtr[i]]);
1550                 }
1551                 if (n > 0 )
1552                         nPtr += n;
1553                 else { 
1554                         char *ptr, *nnPtr;
1555                         ptr = (char*) malloc(EncodedMaxLen * 2);
1556                         memcpy(ptr, Encoded, EncodedMaxLen);
1557                         nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
1558                         free(Encoded), Encoded = ptr;
1559                         EncodedMaxLen *= 2;
1560                         i--; /* do it once more with properly lengthened buffer */
1561                 }
1562         }
1563         for (i = 1; i <= nColons; i++)
1564                 source[--AddrPtr[i]] = ',';
1565         free(AddrUtf8);
1566         free(AddrPtr);
1567         return Encoded;
1568 }
1569
1570
1571 /*
1572  * Get a message off disk.  (returns om_* values found in msgbase.h)
1573  */
1574 int CtdlOutputPreLoadedMsg(
1575                 struct CtdlMessage *TheMessage,
1576                 int mode,               /* how would you like that message? */
1577                 int headers_only,       /* eschew the message body? */
1578                 int do_proto,           /* do Citadel protocol responses? */
1579                 int crlf,               /* Use CRLF newlines instead of LF? */
1580                 int flags               /* should the bessage be exported clean? */
1581 ) {
1582         int i, j, k;
1583         char buf[SIZ];
1584         cit_uint8_t ch, prev_ch;
1585         char allkeys[30];
1586         char display_name[256];
1587         char *mptr, *mpptr;
1588         char *nl;       /* newline string */
1589         int suppress_f = 0;
1590         int subject_found = 0;
1591         struct ma_info ma;
1592
1593         /* Buffers needed for RFC822 translation.  These are all filled
1594          * using functions that are bounds-checked, and therefore we can
1595          * make them substantially smaller than SIZ.
1596          */
1597         char suser[100];
1598         char luser[100];
1599         char fuser[100];
1600         char snode[100];
1601         char lnode[100];
1602         char mid[100];
1603         char datestamp[100];
1604
1605         CtdlLogPrintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %d, %d, %d, %d\n",
1606                 ((TheMessage == NULL) ? "NULL" : "not null"),
1607                 mode, headers_only, do_proto, crlf);
1608
1609         strcpy(mid, "unknown");
1610         nl = (crlf ? "\r\n" : "\n");
1611
1612         if (!is_valid_message(TheMessage)) {
1613                 CtdlLogPrintf(CTDL_ERR,
1614                         "ERROR: invalid preloaded message for output\n");
1615                 return(om_no_such_msg);
1616         }
1617
1618         /* Are we downloading a MIME component? */
1619         if (mode == MT_DOWNLOAD) {
1620                 if (TheMessage->cm_format_type != FMT_RFC822) {
1621                         if (do_proto)
1622                                 cprintf("%d This is not a MIME message.\n",
1623                                 ERROR + ILLEGAL_VALUE);
1624                 } else if (CC->download_fp != NULL) {
1625                         if (do_proto) cprintf(
1626                                 "%d You already have a download open.\n",
1627                                 ERROR + RESOURCE_BUSY);
1628                 } else {
1629                         /* Parse the message text component */
1630                         mptr = TheMessage->cm_fields['M'];
1631                         mime_parser(mptr, NULL, *mime_download, NULL, NULL, NULL, 0);
1632                         /* If there's no file open by this time, the requested
1633                          * section wasn't found, so print an error
1634                          */
1635                         if (CC->download_fp == NULL) {
1636                                 if (do_proto) cprintf(
1637                                         "%d Section %s not found.\n",
1638                                         ERROR + FILE_NOT_FOUND,
1639                                         CC->download_desired_section);
1640                         }
1641                 }
1642                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1643         }
1644
1645         /* MT_SPEW_SECTION is like MT_DOWNLOAD except it outputs the whole MIME part
1646          * in a single server operation instead of opening a download file.
1647          */
1648         if (mode == MT_SPEW_SECTION) {
1649                 if (TheMessage->cm_format_type != FMT_RFC822) {
1650                         if (do_proto)
1651                                 cprintf("%d This is not a MIME message.\n",
1652                                 ERROR + ILLEGAL_VALUE);
1653                 } else {
1654                         /* Parse the message text component */
1655                         int found_it = 0;
1656
1657                         mptr = TheMessage->cm_fields['M'];
1658                         mime_parser(mptr, NULL, *mime_spew_section, NULL, NULL, (void *)&found_it, 0);
1659                         /* If section wasn't found, print an error
1660                          */
1661                         if (!found_it) {
1662                                 if (do_proto) cprintf(
1663                                         "%d Section %s not found.\n",
1664                                         ERROR + FILE_NOT_FOUND,
1665                                         CC->download_desired_section);
1666                         }
1667                 }
1668                 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1669         }
1670
1671         /* now for the user-mode message reading loops */
1672         if (do_proto) cprintf("%d msg:\n", LISTING_FOLLOWS);
1673
1674         /* Does the caller want to skip the headers? */
1675         if (headers_only == HEADERS_NONE) goto START_TEXT;
1676
1677         /* Tell the client which format type we're using. */
1678         if ( (mode == MT_CITADEL) && (do_proto) ) {
1679                 cprintf("type=%d\n", TheMessage->cm_format_type);
1680         }
1681
1682         /* nhdr=yes means that we're only displaying headers, no body */
1683         if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1684            && (mode == MT_CITADEL)
1685            && (do_proto)
1686            ) {
1687                 cprintf("nhdr=yes\n");
1688         }
1689
1690         /* begin header processing loop for Citadel message format */
1691
1692         if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1693
1694                 safestrncpy(display_name, "<unknown>", sizeof display_name);
1695                 if (TheMessage->cm_fields['A']) {
1696                         strcpy(buf, TheMessage->cm_fields['A']);
1697                         if (TheMessage->cm_anon_type == MES_ANONONLY) {
1698                                 safestrncpy(display_name, "****", sizeof display_name);
1699                         }
1700                         else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1701                                 safestrncpy(display_name, "anonymous", sizeof display_name);
1702                         }
1703                         else {
1704                                 safestrncpy(display_name, buf, sizeof display_name);
1705                         }
1706                         if ((is_room_aide())
1707                             && ((TheMessage->cm_anon_type == MES_ANONONLY)
1708                              || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1709                                 size_t tmp = strlen(display_name);
1710                                 snprintf(&display_name[tmp],
1711                                          sizeof display_name - tmp,
1712                                          " [%s]", buf);
1713                         }
1714                 }
1715
1716                 /* Don't show Internet address for users on the
1717                  * local Citadel network.
1718                  */
1719                 suppress_f = 0;
1720                 if (TheMessage->cm_fields['N'] != NULL)
1721                    if (!IsEmptyStr(TheMessage->cm_fields['N']))
1722                       if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1723                         suppress_f = 1;
1724                 }
1725                 
1726                 /* Now spew the header fields in the order we like them. */
1727                 safestrncpy(allkeys, FORDER, sizeof allkeys);
1728                 for (i=0; i<strlen(allkeys); ++i) {
1729                         k = (int) allkeys[i];
1730                         if (k != 'M') {
1731                                 if ( (TheMessage->cm_fields[k] != NULL)
1732                                    && (msgkeys[k] != NULL) ) {
1733                                         if (k == 'A') {
1734                                                 if (do_proto) cprintf("%s=%s\n",
1735                                                         msgkeys[k],
1736                                                         display_name);
1737                                         }
1738                                         else if ((k == 'F') && (suppress_f)) {
1739                                                 /* do nothing */
1740                                         }
1741                                         /* Masquerade display name if needed */
1742                                         else {
1743                                                 if (do_proto) cprintf("%s=%s\n",
1744                                                         msgkeys[k],
1745                                                         TheMessage->cm_fields[k]
1746                                         );
1747                                         }
1748                                 }
1749                         }
1750                 }
1751
1752         }
1753
1754         /* begin header processing loop for RFC822 transfer format */
1755
1756         strcpy(suser, "");
1757         strcpy(luser, "");
1758         strcpy(fuser, "");
1759         strcpy(snode, NODENAME);
1760         strcpy(lnode, HUMANNODE);
1761         if (mode == MT_RFC822) {
1762                 for (i = 0; i < 256; ++i) {
1763                         if (TheMessage->cm_fields[i]) {
1764                                 mptr = mpptr = TheMessage->cm_fields[i];
1765                                 
1766                                 if (i == 'A') {
1767                                         safestrncpy(luser, mptr, sizeof luser);
1768                                         safestrncpy(suser, mptr, sizeof suser);
1769                                 }
1770                                 else if (i == 'Y') {
1771                                         if ((flags & QP_EADDR) != 0) 
1772                                                 mptr = qp_encode_email_addrs(mptr);
1773                                         cprintf("CC: %s%s", mptr, nl);
1774                                 }
1775                                 else if (i == 'P') {
1776                                         cprintf("Return-Path: %s%s", mptr, nl);
1777                                 }
1778                                 else if (i == 'V') {
1779                                         if ((flags & QP_EADDR) != 0) 
1780                                                 mptr = qp_encode_email_addrs(mptr);
1781                                         cprintf("Envelope-To: %s%s", mptr, nl);
1782                                 }
1783                                 else if (i == 'U') {
1784                                         cprintf("Subject: %s%s", mptr, nl);
1785                                         subject_found = 1;
1786                                 }
1787                                 else if (i == 'I')
1788                                         safestrncpy(mid, mptr, sizeof mid);
1789                                 else if (i == 'H')
1790                                         safestrncpy(lnode, mptr, sizeof lnode);
1791                                 else if (i == 'F')
1792                                         safestrncpy(fuser, mptr, sizeof fuser);
1793                                 /* else if (i == 'O')
1794                                         cprintf("X-Citadel-Room: %s%s",
1795                                                 mptr, nl); */
1796                                 else if (i == 'N')
1797                                         safestrncpy(snode, mptr, sizeof snode);
1798                                 else if (i == 'R')
1799                                 {
1800                                         if (haschar(mptr, '@') == 0)
1801                                         {
1802                                                 cprintf("To: %s@%s%s", mptr, config.c_fqdn, nl);
1803                                         }
1804                                         else
1805                                         {
1806                                                 if ((flags & QP_EADDR) != 0) 
1807                                                         mptr = qp_encode_email_addrs(mptr);
1808                                                 cprintf("To: %s%s", mptr, nl);
1809                                         }
1810                                 }
1811                                 else if (i == 'T') {
1812                                         datestring(datestamp, sizeof datestamp,
1813                                                 atol(mptr), DATESTRING_RFC822);
1814                                         cprintf("Date: %s%s", datestamp, nl);
1815                                 }
1816                                 else if (i == 'W') {
1817                                         cprintf("References: ");
1818                                         k = num_tokens(mptr, '|');
1819                                         for (j=0; j<k; ++j) {
1820                                                 extract_token(buf, mptr, j, '|', sizeof buf);
1821                                                 cprintf("<%s>", buf);
1822                                                 if (j == (k-1)) {
1823                                                         cprintf("%s", nl);
1824                                                 }
1825                                                 else {
1826                                                         cprintf(" ");
1827                                                 }
1828                                         }
1829                                 }
1830                                 if (mptr != mpptr)
1831                                         free (mptr);
1832                         }
1833                 }
1834                 if (subject_found == 0) {
1835                         cprintf("Subject: (no subject)%s", nl);
1836                 }
1837         }
1838
1839         for (i=0; !IsEmptyStr(&suser[i]); ++i) {
1840                 suser[i] = tolower(suser[i]);
1841                 if (!isalnum(suser[i])) suser[i]='_';
1842         }
1843
1844         if (mode == MT_RFC822) {
1845                 if (!strcasecmp(snode, NODENAME)) {
1846                         safestrncpy(snode, FQDN, sizeof snode);
1847                 }
1848
1849                 /* Construct a fun message id */
1850                 cprintf("Message-ID: <%s", mid);/// todo: this possibly breaks threadding mails.
1851                 if (strchr(mid, '@')==NULL) {
1852                         cprintf("@%s", snode);
1853                 }
1854                 cprintf(">%s", nl);
1855
1856                 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1857                         cprintf("From: \"----\" <x@x.org>%s", nl);
1858                 }
1859                 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1860                         cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1861                 }
1862                 else if (!IsEmptyStr(fuser)) {
1863                         cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1864                 }
1865                 else {
1866                         cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1867                 }
1868
1869                 cprintf("Organization: %s%s", lnode, nl);
1870
1871                 /* Blank line signifying RFC822 end-of-headers */
1872                 if (TheMessage->cm_format_type != FMT_RFC822) {
1873                         cprintf("%s", nl);
1874                 }
1875         }
1876
1877         /* end header processing loop ... at this point, we're in the text */
1878 START_TEXT:
1879         if (headers_only == HEADERS_FAST) goto DONE;
1880         mptr = TheMessage->cm_fields['M'];
1881
1882         /* Tell the client about the MIME parts in this message */
1883         if (TheMessage->cm_format_type == FMT_RFC822) {
1884                 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1885                         memset(&ma, 0, sizeof(struct ma_info));
1886                         mime_parser(mptr, NULL,
1887                                 (do_proto ? *list_this_part : NULL),
1888                                 (do_proto ? *list_this_pref : NULL),
1889                                 (do_proto ? *list_this_suff : NULL),
1890                                 (void *)&ma, 0);
1891                 }
1892                 else if (mode == MT_RFC822) {   /* unparsed RFC822 dump */
1893                         char *start_of_text = NULL;
1894                         start_of_text = strstr(mptr, "\n\r\n");
1895                         if (start_of_text == NULL) start_of_text = strstr(mptr, "\n\n");
1896                         if (start_of_text == NULL) start_of_text = mptr;
1897                         ++start_of_text;
1898                         start_of_text = strstr(start_of_text, "\n");
1899                         ++start_of_text;
1900
1901                         char outbuf[1024];
1902                         int outlen = 0;
1903                         int nllen = strlen(nl);
1904                         prev_ch = 0;
1905                         while (ch=*mptr, ch!=0) {
1906                                 if (ch==13) {
1907                                         /* do nothing */
1908                                 }
1909                                 else {
1910                                         if (
1911                                                 ((headers_only == HEADERS_NONE) && (mptr >= start_of_text))
1912                                            ||   ((headers_only == HEADERS_ONLY) && (mptr < start_of_text))
1913                                            ||   ((headers_only != HEADERS_NONE) && (headers_only != HEADERS_ONLY))
1914                                         ) {
1915                                                 if (ch == 10) {
1916                                                         sprintf(&outbuf[outlen], "%s", nl);
1917                                                         outlen += nllen;
1918                                                 }
1919                                                 else {
1920                                                         outbuf[outlen++] = ch;
1921                                                 }
1922                                         }
1923                                 }
1924                                 if (flags & ESC_DOT)
1925                                 {
1926                                         if ((prev_ch == 10) && (ch == '.') && ((*(mptr+1) == 13) || (*(mptr+1) == 10)))
1927                                         {
1928                                                 outbuf[outlen++] = '.';
1929                                         }
1930                                 }
1931                                 prev_ch = ch;
1932                                 ++mptr;
1933                                 if (outlen > 1000) {
1934                                         client_write(outbuf, outlen);
1935                                         outlen = 0;
1936                                 }
1937                         }
1938                         if (outlen > 0) {
1939                                 client_write(outbuf, outlen);
1940                                 outlen = 0;
1941                         }
1942
1943                         goto DONE;
1944                 }
1945         }
1946
1947         if (headers_only == HEADERS_ONLY) {
1948                 goto DONE;
1949         }
1950
1951         /* signify start of msg text */
1952         if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1953                 if (do_proto) cprintf("text\n");
1954         }
1955
1956         /* If the format type on disk is 1 (fixed-format), then we want
1957          * everything to be output completely literally ... regardless of
1958          * what message transfer format is in use.
1959          */
1960         if (TheMessage->cm_format_type == FMT_FIXED) {
1961                 int buflen;
1962                 if (mode == MT_MIME) {
1963                         cprintf("Content-type: text/plain\n\n");
1964                 }
1965                 *buf = '\0';
1966                 buflen = 0;
1967                 while (ch = *mptr++, ch > 0) {
1968                         if (ch == 13)
1969                                 ch = 10;
1970                         if ((ch == 10) || (buflen > 250)) {
1971                                 buf[buflen] = '\0';
1972                                 cprintf("%s%s", buf, nl);
1973                                 *buf = '\0';
1974                                 buflen = 0;
1975                         } else {
1976                                 buf[buflen] = ch;
1977                                 buflen++;
1978                         }
1979                 }
1980                 buf[buflen] = '\0';
1981                 if (!IsEmptyStr(buf))
1982                         cprintf("%s%s", buf, nl);
1983         }
1984
1985         /* If the message on disk is format 0 (Citadel vari-format), we
1986          * output using the formatter at 80 columns.  This is the final output
1987          * form if the transfer format is RFC822, but if the transfer format
1988          * is Citadel proprietary, it'll still work, because the indentation
1989          * for new paragraphs is correct and the client will reformat the
1990          * message to the reader's screen width.
1991          */
1992         if (TheMessage->cm_format_type == FMT_CITADEL) {
1993                 if (mode == MT_MIME) {
1994                         cprintf("Content-type: text/x-citadel-variformat\n\n");
1995                 }
1996                 memfmout(mptr, 0, nl);
1997         }
1998
1999         /* If the message on disk is format 4 (MIME), we've gotta hand it
2000          * off to the MIME parser.  The client has already been told that
2001          * this message is format 1 (fixed format), so the callback function
2002          * we use will display those parts as-is.
2003          */
2004         if (TheMessage->cm_format_type == FMT_RFC822) {
2005                 memset(&ma, 0, sizeof(struct ma_info));
2006
2007                 if (mode == MT_MIME) {
2008                         ma.use_fo_hooks = 0;
2009                         strcpy(ma.chosen_part, "1");
2010                         ma.chosen_pref = 9999;
2011                         mime_parser(mptr, NULL,
2012                                 *choose_preferred, *fixed_output_pre,
2013                                 *fixed_output_post, (void *)&ma, 0);
2014                         mime_parser(mptr, NULL,
2015                                 *output_preferred, NULL, NULL, (void *)&ma, CC->msg4_dont_decode);
2016                 }
2017                 else {
2018                         ma.use_fo_hooks = 1;
2019                         mime_parser(mptr, NULL,
2020                                 *fixed_output, *fixed_output_pre,
2021                                 *fixed_output_post, (void *)&ma, 0);
2022                 }
2023
2024         }
2025
2026 DONE:   /* now we're done */
2027         if (do_proto) cprintf("000\n");
2028         return(om_ok);
2029 }
2030
2031
2032
2033 /*
2034  * display a message (mode 0 - Citadel proprietary)
2035  */
2036 void cmd_msg0(char *cmdbuf)
2037 {
2038         long msgid;
2039         int headers_only = HEADERS_ALL;
2040
2041         msgid = extract_long(cmdbuf, 0);
2042         headers_only = extract_int(cmdbuf, 1);
2043
2044         CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0, NULL, 0);
2045         return;
2046 }
2047
2048
2049 /*
2050  * display a message (mode 2 - RFC822)
2051  */
2052 void cmd_msg2(char *cmdbuf)
2053 {
2054         long msgid;
2055         int headers_only = HEADERS_ALL;
2056
2057         msgid = extract_long(cmdbuf, 0);
2058         headers_only = extract_int(cmdbuf, 1);
2059
2060         CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1, NULL, 0);
2061 }
2062
2063
2064
2065 /* 
2066  * display a message (mode 3 - IGnet raw format - internal programs only)
2067  */
2068 void cmd_msg3(char *cmdbuf)
2069 {
2070         long msgnum;
2071         struct CtdlMessage *msg = NULL;
2072         struct ser_ret smr;
2073
2074         if (CC->internal_pgm == 0) {
2075                 cprintf("%d This command is for internal programs only.\n",
2076                         ERROR + HIGHER_ACCESS_REQUIRED);
2077                 return;
2078         }
2079
2080         msgnum = extract_long(cmdbuf, 0);
2081         msg = CtdlFetchMessage(msgnum, 1);
2082         if (msg == NULL) {
2083                 cprintf("%d Message %ld not found.\n", 
2084                         ERROR + MESSAGE_NOT_FOUND, msgnum);
2085                 return;
2086         }
2087
2088         serialize_message(&smr, msg);
2089         CtdlFreeMessage(msg);
2090
2091         if (smr.len == 0) {
2092                 cprintf("%d Unable to serialize message\n",
2093                         ERROR + INTERNAL_ERROR);
2094                 return;
2095         }
2096
2097         cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
2098         client_write((char *)smr.ser, (int)smr.len);
2099         free(smr.ser);
2100 }
2101
2102
2103
2104 /* 
2105  * Display a message using MIME content types
2106  */
2107 void cmd_msg4(char *cmdbuf)
2108 {
2109         long msgid;
2110         char section[64];
2111
2112         msgid = extract_long(cmdbuf, 0);
2113         extract_token(section, cmdbuf, 1, '|', sizeof section);
2114         CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0, (section[0] ? section : NULL) , 0);
2115 }
2116
2117
2118
2119 /* 
2120  * Client tells us its preferred message format(s)
2121  */
2122 void cmd_msgp(char *cmdbuf)
2123 {
2124         if (!strcasecmp(cmdbuf, "dont_decode")) {
2125                 CC->msg4_dont_decode = 1;
2126                 cprintf("%d MSG4 will not pre-decode messages.\n", CIT_OK);
2127         }
2128         else {
2129                 safestrncpy(CC->preferred_formats, cmdbuf, sizeof(CC->preferred_formats));
2130                 cprintf("%d Preferred MIME formats have been set.\n", CIT_OK);
2131         }
2132 }
2133
2134
2135 /*
2136  * Open a component of a MIME message as a download file 
2137  */
2138 void cmd_opna(char *cmdbuf)
2139 {
2140         long msgid;
2141         char desired_section[128];
2142
2143         msgid = extract_long(cmdbuf, 0);
2144         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2145         safestrncpy(CC->download_desired_section, desired_section,
2146                 sizeof CC->download_desired_section);
2147         CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1, NULL, 0);
2148 }                       
2149
2150
2151 /*
2152  * Open a component of a MIME message and transmit it all at once
2153  */
2154 void cmd_dlat(char *cmdbuf)
2155 {
2156         long msgid;
2157         char desired_section[128];
2158
2159         msgid = extract_long(cmdbuf, 0);
2160         extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
2161         safestrncpy(CC->download_desired_section, desired_section,
2162                 sizeof CC->download_desired_section);
2163         CtdlOutputMsg(msgid, MT_SPEW_SECTION, 0, 1, 1, NULL, 0);
2164 }                       
2165
2166
2167 /*
2168  * Save one or more message pointers into a specified room
2169  * (Returns 0 for success, nonzero for failure)
2170  * roomname may be NULL to use the current room
2171  *
2172  * Note that the 'supplied_msg' field may be set to NULL, in which case
2173  * the message will be fetched from disk, by number, if we need to perform
2174  * replication checks.  This adds an additional database read, so if the
2175  * caller already has the message in memory then it should be supplied.  (Obviously
2176  * this mode of operation only works if we're saving a single message.)
2177  */
2178 int CtdlSaveMsgPointersInRoom(char *roomname, long newmsgidlist[], int num_newmsgs,
2179                                 int do_repl_check, struct CtdlMessage *supplied_msg)
2180 {
2181         int i, j, unique;
2182         char hold_rm[ROOMNAMELEN];
2183         struct cdbdata *cdbfr;
2184         int num_msgs;
2185         long *msglist;
2186         long highest_msg = 0L;
2187
2188         long msgid = 0;
2189         struct CtdlMessage *msg = NULL;
2190
2191         long *msgs_to_be_merged = NULL;
2192         int num_msgs_to_be_merged = 0;
2193
2194         CtdlLogPrintf(CTDL_DEBUG,
2195                 "CtdlSaveMsgPointersInRoom(room=%s, num_msgs=%d, repl=%d)\n",
2196                 roomname, num_newmsgs, do_repl_check);
2197
2198         strcpy(hold_rm, CC->room.QRname);
2199
2200         /* Sanity checks */
2201         if (newmsgidlist == NULL) return(ERROR + INTERNAL_ERROR);
2202         if (num_newmsgs < 1) return(ERROR + INTERNAL_ERROR);
2203         if (num_newmsgs > 1) supplied_msg = NULL;
2204
2205         /* Now the regular stuff */
2206         if (lgetroom(&CC->room,
2207            ((roomname != NULL) ? roomname : CC->room.QRname) )
2208            != 0) {
2209                 CtdlLogPrintf(CTDL_ERR, "No such room <%s>\n", roomname);
2210                 return(ERROR + ROOM_NOT_FOUND);
2211         }
2212
2213
2214         msgs_to_be_merged = malloc(sizeof(long) * num_newmsgs);
2215         num_msgs_to_be_merged = 0;
2216
2217
2218         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
2219         if (cdbfr == NULL) {
2220                 msglist = NULL;
2221                 num_msgs = 0;
2222         } else {
2223                 msglist = (long *) cdbfr->ptr;
2224                 cdbfr->ptr = NULL;      /* CtdlSaveMsgPointerInRoom() now owns this memory */
2225                 num_msgs = cdbfr->len / sizeof(long);
2226                 cdb_free(cdbfr);
2227         }
2228
2229
2230         /* Create a list of msgid's which were supplied by the caller, but do
2231          * not already exist in the target room.  It is absolutely taboo to
2232          * have more than one reference to the same message in a room.
2233          */
2234         for (i=0; i<num_newmsgs; ++i) {
2235                 unique = 1;
2236                 if (num_msgs > 0) for (j=0; j<num_msgs; ++j) {
2237                         if (msglist[j] == newmsgidlist[i]) {
2238                                 unique = 0;
2239                         }
2240                 }
2241                 if (unique) {
2242                         msgs_to_be_merged[num_msgs_to_be_merged++] = newmsgidlist[i];
2243                 }
2244         }
2245
2246         CtdlLogPrintf(9, "%d unique messages to be merged\n", num_msgs_to_be_merged);
2247
2248         /*
2249          * Now merge the new messages
2250          */
2251         msglist = realloc(msglist, (sizeof(long) * (num_msgs + num_msgs_to_be_merged)) );
2252         if (msglist == NULL) {
2253                 CtdlLogPrintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
2254         }
2255         memcpy(&msglist[num_msgs], msgs_to_be_merged, (sizeof(long) * num_msgs_to_be_merged) );
2256         num_msgs += num_msgs_to_be_merged;
2257
2258         /* Sort the message list, so all the msgid's are in order */
2259         num_msgs = sort_msglist(msglist, num_msgs);
2260
2261         /* Determine the highest message number */
2262         highest_msg = msglist[num_msgs - 1];
2263
2264         /* Write it back to disk. */
2265         cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
2266                   msglist, (int)(num_msgs * sizeof(long)));
2267
2268         /* Free up the memory we used. */
2269         free(msglist);
2270
2271         /* Update the highest-message pointer and unlock the room. */
2272         CC->room.QRhighest = highest_msg;
2273         lputroom(&CC->room);
2274
2275         /* Perform replication checks if necessary */
2276         if ( (DoesThisRoomNeedEuidIndexing(&CC->room)) && (do_repl_check) ) {
2277                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() doing repl checks\n");
2278
2279                 for (i=0; i<num_msgs_to_be_merged; ++i) {
2280                         msgid = msgs_to_be_merged[i];
2281         
2282                         if (supplied_msg != NULL) {
2283                                 msg = supplied_msg;
2284                         }
2285                         else {
2286                                 msg = CtdlFetchMessage(msgid, 0);
2287                         }
2288         
2289                         if (msg != NULL) {
2290                                 ReplicationChecks(msg);
2291                 
2292                                 /* If the message has an Exclusive ID, index that... */
2293                                 if (msg->cm_fields['E'] != NULL) {
2294                                         index_message_by_euid(msg->cm_fields['E'], &CC->room, msgid);
2295                                 }
2296
2297                                 /* Free up the memory we may have allocated */
2298                                 if (msg != supplied_msg) {
2299                                         CtdlFreeMessage(msg);
2300                                 }
2301                         }
2302         
2303                 }
2304         }
2305
2306         else {
2307                 CtdlLogPrintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom() skips repl checks\n");
2308         }
2309
2310         /* Submit this room for processing by hooks */
2311         PerformRoomHooks(&CC->room);
2312
2313         /* Go back to the room we were in before we wandered here... */
2314         getroom(&CC->room, hold_rm);
2315
2316         /* Bump the reference count for all messages which were merged */
2317         for (i=0; i<num_msgs_to_be_merged; ++i) {
2318                 AdjRefCount(msgs_to_be_merged[i], +1);
2319         }
2320
2321         /* Free up memory... */
2322         if (msgs_to_be_merged != NULL) {
2323                 free(msgs_to_be_merged);
2324         }
2325
2326         /* Return success. */
2327         return (0);
2328 }
2329
2330
2331 /*
2332  * This is the same as CtdlSaveMsgPointersInRoom() but it only accepts
2333  * a single message.
2334  */
2335 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid,
2336                         int do_repl_check, struct CtdlMessage *supplied_msg)
2337 {
2338         return CtdlSaveMsgPointersInRoom(roomname, &msgid, 1, do_repl_check, supplied_msg);
2339 }
2340
2341
2342
2343
2344 /*
2345  * Message base operation to save a new message to the message store
2346  * (returns new message number)
2347  *
2348  * This is the back end for CtdlSubmitMsg() and should not be directly
2349  * called by server-side modules.
2350  *
2351  */
2352 long send_message(struct CtdlMessage *msg) {
2353         long newmsgid;
2354         long retval;
2355         char msgidbuf[256];
2356         struct ser_ret smr;
2357         int is_bigmsg = 0;
2358         char *holdM = NULL;
2359
2360         /* Get a new message number */
2361         newmsgid = get_new_message_number();
2362         snprintf(msgidbuf, sizeof msgidbuf, "%010ld@%s", newmsgid, config.c_fqdn);
2363
2364         /* Generate an ID if we don't have one already */
2365         if (msg->cm_fields['I']==NULL) {
2366                 msg->cm_fields['I'] = strdup(msgidbuf);
2367         }
2368
2369         /* If the message is big, set its body aside for storage elsewhere */
2370         if (msg->cm_fields['M'] != NULL) {
2371                 if (strlen(msg->cm_fields['M']) > BIGMSG) {
2372                         is_bigmsg = 1;
2373                         holdM = msg->cm_fields['M'];
2374                         msg->cm_fields['M'] = NULL;
2375                 }
2376         }
2377
2378         /* Serialize our data structure for storage in the database */  
2379         serialize_message(&smr, msg);
2380
2381         if (is_bigmsg) {
2382                 msg->cm_fields['M'] = holdM;
2383         }
2384
2385         if (smr.len == 0) {
2386                 cprintf("%d Unable to serialize message\n",
2387                         ERROR + INTERNAL_ERROR);
2388                 return (-1L);
2389         }
2390
2391         /* Write our little bundle of joy into the message base */
2392         if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
2393                       smr.ser, smr.len) < 0) {
2394                 CtdlLogPrintf(CTDL_ERR, "Can't store message\n");
2395                 retval = 0L;
2396         } else {
2397                 if (is_bigmsg) {
2398                         cdb_store(CDB_BIGMSGS,
2399                                 &newmsgid,
2400                                 (int)sizeof(long),
2401                                 holdM,
2402                                 (strlen(holdM) + 1)
2403                         );
2404                 }
2405                 retval = newmsgid;
2406         }
2407
2408         /* Free the memory we used for the serialized message */
2409         free(smr.ser);
2410
2411         /* Return the *local* message ID to the caller
2412          * (even if we're storing an incoming network message)
2413          */
2414         return(retval);
2415 }
2416
2417
2418
2419 /*
2420  * Serialize a struct CtdlMessage into the format used on disk and network.
2421  * 
2422  * This function loads up a "struct ser_ret" (defined in server.h) which
2423  * contains the length of the serialized message and a pointer to the
2424  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2425  */
2426 void serialize_message(struct ser_ret *ret,             /* return values */
2427                         struct CtdlMessage *msg)        /* unserialized msg */
2428 {
2429         size_t wlen, fieldlen;
2430         int i;
2431         static char *forder = FORDER;
2432
2433         /*
2434          * Check for valid message format
2435          */
2436         if (is_valid_message(msg) == 0) {
2437                 CtdlLogPrintf(CTDL_ERR, "serialize_message() aborting due to invalid message\n");
2438                 ret->len = 0;
2439                 ret->ser = NULL;
2440                 return;
2441         }
2442
2443         ret->len = 3;
2444         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
2445                 ret->len = ret->len +
2446                         strlen(msg->cm_fields[(int)forder[i]]) + 2;
2447
2448         ret->ser = malloc(ret->len);
2449         if (ret->ser == NULL) {
2450                 CtdlLogPrintf(CTDL_ERR, "serialize_message() malloc(%ld) failed: %s\n",
2451                         (long)ret->len, strerror(errno));
2452                 ret->len = 0;
2453                 ret->ser = NULL;
2454                 return;
2455         }
2456
2457         ret->ser[0] = 0xFF;
2458         ret->ser[1] = msg->cm_anon_type;
2459         ret->ser[2] = msg->cm_format_type;
2460         wlen = 3;
2461
2462         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2463                 fieldlen = strlen(msg->cm_fields[(int)forder[i]]);
2464                 ret->ser[wlen++] = (char)forder[i];
2465                 safestrncpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]], fieldlen+1);
2466                 wlen = wlen + fieldlen + 1;
2467         }
2468         if (ret->len != wlen) CtdlLogPrintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
2469                 (long)ret->len, (long)wlen);
2470
2471         return;
2472 }
2473
2474
2475 /*
2476  * Serialize a struct CtdlMessage into the format used on disk and network.
2477  * 
2478  * This function loads up a "struct ser_ret" (defined in server.h) which
2479  * contains the length of the serialized message and a pointer to the
2480  * serialized message in memory.  THE LATTER MUST BE FREED BY THE CALLER.
2481  */
2482 void dump_message(struct CtdlMessage *msg,      /* unserialized msg */
2483                   long Siz)                     /* how many chars ? */
2484 {
2485         size_t wlen;
2486         int i;
2487         static char *forder = FORDER;
2488         char *buf;
2489
2490         /*
2491          * Check for valid message format
2492          */
2493         if (is_valid_message(msg) == 0) {
2494                 CtdlLogPrintf(CTDL_ERR, "dump_message() aborting due to invalid message\n");
2495                 return;
2496         }
2497
2498         buf = (char*) malloc (Siz + 1);
2499
2500         wlen = 3;
2501         
2502         for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
2503                         snprintf (buf, Siz, " msg[%c] = %s ...\n", (char) forder[i], 
2504                                    msg->cm_fields[(int)forder[i]]);
2505                         client_write (buf, strlen(buf));
2506                 }
2507
2508         return;
2509 }
2510
2511
2512
2513 /*
2514  * Check to see if any messages already exist in the current room which
2515  * carry the same Exclusive ID as this one.  If any are found, delete them.
2516  */
2517 void ReplicationChecks(struct CtdlMessage *msg) {
2518         long old_msgnum = (-1L);
2519
2520         if (DoesThisRoomNeedEuidIndexing(&CC->room) == 0) return;
2521
2522         CtdlLogPrintf(CTDL_DEBUG, "Performing replication checks in <%s>\n",
2523                 CC->room.QRname);
2524
2525         /* No exclusive id?  Don't do anything. */
2526         if (msg == NULL) return;
2527         if (msg->cm_fields['E'] == NULL) return;
2528         if (IsEmptyStr(msg->cm_fields['E'])) return;
2529         /*CtdlLogPrintf(CTDL_DEBUG, "Exclusive ID: <%s> for room <%s>\n",
2530                 msg->cm_fields['E'], CC->room.QRname);*/
2531
2532         old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CC->room);
2533         if (old_msgnum > 0L) {
2534                 CtdlLogPrintf(CTDL_DEBUG, "ReplicationChecks() replacing message %ld\n", old_msgnum);
2535                 CtdlDeleteMessages(CC->room.QRname, &old_msgnum, 1, "");
2536         }
2537 }
2538
2539
2540
2541 /*
2542  * Save a message to disk and submit it into the delivery system.
2543  */
2544 long CtdlSubmitMsg(struct CtdlMessage *msg,     /* message to save */
2545                    struct recptypes *recps,     /* recipients (if mail) */
2546                    char *force,                 /* force a particular room? */
2547                    int flags                    /* should the bessage be exported clean? */
2548 ) {
2549         char submit_filename[128];
2550         char generated_timestamp[32];
2551         char hold_rm[ROOMNAMELEN];
2552         char actual_rm[ROOMNAMELEN];
2553         char force_room[ROOMNAMELEN];
2554         char content_type[SIZ];                 /* We have to learn this */
2555         char recipient[SIZ];
2556         long newmsgid;
2557         char *mptr = NULL;
2558         struct ctdluser userbuf;
2559         int a, i;
2560         struct MetaData smi;
2561         FILE *network_fp = NULL;
2562         static int seqnum = 1;
2563         struct CtdlMessage *imsg = NULL;
2564         char *instr = NULL;
2565         size_t instr_alloc = 0;
2566         struct ser_ret smr;
2567         char *hold_R, *hold_D;
2568         char *collected_addresses = NULL;
2569         struct addresses_to_be_filed *aptr = NULL;
2570         char *saved_rfc822_version = NULL;
2571         int qualified_for_journaling = 0;
2572         struct CitContext *CCC = CC;            /* CachedCitContext - performance boost */
2573         char bounce_to[1024] = "";
2574
2575         CtdlLogPrintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2576         if (is_valid_message(msg) == 0) return(-1);     /* self check */
2577
2578         /* If this message has no timestamp, we take the liberty of
2579          * giving it one, right now.
2580          */
2581         if (msg->cm_fields['T'] == NULL) {
2582                 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2583                 msg->cm_fields['T'] = strdup(generated_timestamp);
2584         }
2585
2586         /* If this message has no path, we generate one.
2587          */
2588         if (msg->cm_fields['P'] == NULL) {
2589                 if (msg->cm_fields['A'] != NULL) {
2590                         msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2591                         for (a=0; !IsEmptyStr(&msg->cm_fields['P'][a]); ++a) {
2592                                 if (isspace(msg->cm_fields['P'][a])) {
2593                                         msg->cm_fields['P'][a] = ' ';
2594                                 }
2595                         }
2596                 }
2597                 else {
2598                         msg->cm_fields['P'] = strdup("unknown");
2599                 }
2600         }
2601
2602         if (force == NULL) {
2603                 strcpy(force_room, "");
2604         }
2605         else {
2606                 strcpy(force_room, force);
2607         }
2608
2609         /* Learn about what's inside, because it's what's inside that counts */
2610         if (msg->cm_fields['M'] == NULL) {
2611                 CtdlLogPrintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2612                 return(-2);
2613         }
2614
2615         switch (msg->cm_format_type) {
2616         case 0:
2617                 strcpy(content_type, "text/x-citadel-variformat");
2618                 break;
2619         case 1:
2620                 strcpy(content_type, "text/plain");
2621                 break;
2622         case 4:
2623                 strcpy(content_type, "text/plain");
2624                 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type:");
2625                 if (mptr != NULL) {
2626                         char *aptr;
2627                         safestrncpy(content_type, &mptr[13], sizeof content_type);
2628                         striplt(content_type);
2629                         aptr = content_type;
2630                         while (!IsEmptyStr(aptr)) {
2631                                 if ((*aptr == ';')
2632                                     || (*aptr == ' ')
2633                                     || (*aptr == 13)
2634                                     || (*aptr == 10)) {
2635                                         *aptr = 0;
2636                                 }
2637                                 else aptr++;
2638                         }
2639                 }
2640         }
2641
2642         /* Goto the correct room */
2643         CtdlLogPrintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CCC->room.QRname : SENTITEMS);
2644         strcpy(hold_rm, CCC->room.QRname);
2645         strcpy(actual_rm, CCC->room.QRname);
2646         if (recps != NULL) {
2647                 strcpy(actual_rm, SENTITEMS);
2648         }
2649
2650         /* If the user is a twit, move to the twit room for posting */
2651         if (TWITDETECT) {
2652                 if (CCC->user.axlevel == 2) {
2653                         strcpy(hold_rm, actual_rm);
2654                         strcpy(actual_rm, config.c_twitroom);
2655                         CtdlLogPrintf(CTDL_DEBUG, "Diverting to twit room\n");
2656                 }
2657         }
2658
2659         /* ...or if this message is destined for Aide> then go there. */
2660         if (!IsEmptyStr(force_room)) {
2661                 strcpy(actual_rm, force_room);
2662         }
2663
2664         CtdlLogPrintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2665         if (strcasecmp(actual_rm, CCC->room.QRname)) {
2666                 /* getroom(&CCC->room, actual_rm); */
2667                 usergoto(actual_rm, 0, 1, NULL, NULL);
2668         }
2669
2670         /*
2671          * If this message has no O (room) field, generate one.
2672          */
2673         if (msg->cm_fields['O'] == NULL) {
2674                 msg->cm_fields['O'] = strdup(CCC->room.QRname);
2675         }
2676
2677         /* Perform "before save" hooks (aborting if any return nonzero) */
2678         CtdlLogPrintf(CTDL_DEBUG, "Performing before-save hooks\n");
2679         if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2680
2681         /*
2682          * If this message has an Exclusive ID, and the room is replication
2683          * checking enabled, then do replication checks.
2684          */
2685         if (DoesThisRoomNeedEuidIndexing(&CCC->room)) {
2686                 ReplicationChecks(msg);
2687         }
2688
2689         /* Save it to disk */
2690         CtdlLogPrintf(CTDL_DEBUG, "Saving to disk\n");
2691         newmsgid = send_message(msg);
2692         if (newmsgid <= 0L) return(-5);
2693
2694         /* Write a supplemental message info record.  This doesn't have to
2695          * be a critical section because nobody else knows about this message
2696          * yet.
2697          */
2698         CtdlLogPrintf(CTDL_DEBUG, "Creating MetaData record\n");
2699         memset(&smi, 0, sizeof(struct MetaData));
2700         smi.meta_msgnum = newmsgid;
2701         smi.meta_refcount = 0;
2702         safestrncpy(smi.meta_content_type, content_type,
2703                         sizeof smi.meta_content_type);
2704
2705         /*
2706          * Measure how big this message will be when rendered as RFC822.
2707          * We do this for two reasons:
2708          * 1. We need the RFC822 length for the new metadata record, so the
2709          *    POP and IMAP services don't have to calculate message lengths
2710          *    while the user is waiting (multiplied by potentially hundreds
2711          *    or thousands of messages).
2712          * 2. If journaling is enabled, we will need an RFC822 version of the
2713          *    message to attach to the journalized copy.
2714          */
2715         if (CCC->redirect_buffer != NULL) {
2716                 CtdlLogPrintf(CTDL_ALERT, "CCC->redirect_buffer is not NULL during message submission!\n");
2717                 abort();
2718         }
2719         CCC->redirect_buffer = malloc(SIZ);
2720         CCC->redirect_len = 0;
2721         CCC->redirect_alloc = SIZ;
2722         CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, QP_EADDR);
2723         smi.meta_rfc822_length = CCC->redirect_len;
2724         saved_rfc822_version = CCC->redirect_buffer;
2725         CCC->redirect_buffer = NULL;
2726         CCC->redirect_len = 0;
2727         CCC->redirect_alloc = 0;
2728
2729         PutMetaData(&smi);
2730
2731         /* Now figure out where to store the pointers */
2732         CtdlLogPrintf(CTDL_DEBUG, "Storing pointers\n");
2733
2734         /* If this is being done by the networker delivering a private
2735          * message, we want to BYPASS saving the sender's copy (because there
2736          * is no local sender; it would otherwise go to the Trashcan).
2737          */
2738         if ((!CCC->internal_pgm) || (recps == NULL)) {
2739                 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 1, msg) != 0) {
2740                         CtdlLogPrintf(CTDL_ERR, "ERROR saving message pointer!\n");
2741                         CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0, msg);
2742                 }
2743         }
2744
2745         /* For internet mail, drop a copy in the outbound queue room */
2746         if (recps != NULL)
2747          if (recps->num_internet > 0) {
2748                 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0, msg);
2749         }
2750
2751         /* If other rooms are specified, drop them there too. */
2752         if (recps != NULL)
2753          if (recps->num_room > 0)
2754           for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2755                 extract_token(recipient, recps->recp_room, i,
2756                                         '|', sizeof recipient);
2757                 CtdlLogPrintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2758                 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0, msg);
2759         }
2760
2761         /* Bump this user's messages posted counter. */
2762         CtdlLogPrintf(CTDL_DEBUG, "Updating user\n");
2763         lgetuser(&CCC->user, CCC->curr_user);
2764         CCC->user.posted = CCC->user.posted + 1;
2765         lputuser(&CCC->user);
2766
2767         /* Decide where bounces need to be delivered */
2768         if (CCC->logged_in) {
2769                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", CCC->user.fullname, config.c_nodename);
2770         }
2771         else {
2772                 snprintf(bounce_to, sizeof bounce_to, "%s@%s", msg->cm_fields['A'], msg->cm_fields['N']);
2773         }
2774
2775         /* If this is private, local mail, make a copy in the
2776          * recipient's mailbox and bump the reference count.
2777          */
2778         if (recps != NULL)
2779          if (recps->num_local > 0)
2780           for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2781                 extract_token(recipient, recps->recp_local, i,
2782                                         '|', sizeof recipient);
2783                 CtdlLogPrintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2784                         recipient);
2785                 if (getuser(&userbuf, recipient) == 0) {
2786                         // Add a flag so the Funambol module knows its mail
2787                         msg->cm_fields['W'] = strdup(recipient);
2788                         MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2789                         CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0, msg);
2790                         BumpNewMailCounter(userbuf.usernum);
2791                         if (!IsEmptyStr(config.c_funambol_host) || !IsEmptyStr(config.c_pager_program)) {
2792                         /* Generate a instruction message for the Funambol notification
2793                          * server, in the same style as the SMTP queue
2794                          */
2795                            instr_alloc = 1024;
2796                            instr = malloc(instr_alloc);
2797                            snprintf(instr, instr_alloc,
2798                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2799                         "bounceto|%s\n",
2800                         SPOOLMIME, newmsgid, (long)time(NULL),
2801                         bounce_to
2802                         );
2803
2804                            imsg = malloc(sizeof(struct CtdlMessage));
2805                            memset(imsg, 0, sizeof(struct CtdlMessage));
2806                            imsg->cm_magic = CTDLMESSAGE_MAGIC;
2807                            imsg->cm_anon_type = MES_NORMAL;
2808                            imsg->cm_format_type = FMT_RFC822;
2809                            imsg->cm_fields['A'] = strdup("Citadel");
2810                            imsg->cm_fields['J'] = strdup("do not journal");
2811                            imsg->cm_fields['M'] = instr;        /* imsg owns this memory now */
2812                            imsg->cm_fields['W'] = strdup(recipient);
2813                            CtdlSubmitMsg(imsg, NULL, FNBL_QUEUE_ROOM, 0);
2814                            CtdlFreeMessage(imsg);
2815                         }
2816                 }
2817                 else {
2818                         CtdlLogPrintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2819                         CtdlSaveMsgPointerInRoom(config.c_aideroom,
2820                                 newmsgid, 0, msg);
2821                 }
2822         }
2823
2824         /* Perform "after save" hooks */
2825         CtdlLogPrintf(CTDL_DEBUG, "Performing after-save hooks\n");
2826         PerformMessageHooks(msg, EVT_AFTERSAVE);
2827
2828         /* For IGnet mail, we have to save a new copy into the spooler for
2829          * each recipient, with the R and D fields set to the recipient and
2830          * destination-node.  This has two ugly side effects: all other
2831          * recipients end up being unlisted in this recipient's copy of the
2832          * message, and it has to deliver multiple messages to the same
2833          * node.  We'll revisit this again in a year or so when everyone has
2834          * a network spool receiver that can handle the new style messages.
2835          */
2836         if (recps != NULL)
2837          if (recps->num_ignet > 0)
2838           for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2839                 extract_token(recipient, recps->recp_ignet, i,
2840                                 '|', sizeof recipient);
2841
2842                 hold_R = msg->cm_fields['R'];
2843                 hold_D = msg->cm_fields['D'];
2844                 msg->cm_fields['R'] = malloc(SIZ);
2845                 msg->cm_fields['D'] = malloc(128);
2846                 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2847                 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2848                 
2849                 serialize_message(&smr, msg);
2850                 if (smr.len > 0) {
2851                         snprintf(submit_filename, sizeof submit_filename,
2852                                          "%s/netmail.%04lx.%04x.%04x",
2853                                          ctdl_netin_dir,
2854                                          (long) getpid(), CCC->cs_pid, ++seqnum);
2855                         network_fp = fopen(submit_filename, "wb+");
2856                         if (network_fp != NULL) {
2857                                 fwrite(smr.ser, smr.len, 1, network_fp);
2858                                 fclose(network_fp);
2859                         }
2860                         free(smr.ser);
2861                 }
2862
2863                 free(msg->cm_fields['R']);
2864                 free(msg->cm_fields['D']);
2865                 msg->cm_fields['R'] = hold_R;
2866                 msg->cm_fields['D'] = hold_D;
2867         }
2868
2869         /* Go back to the room we started from */
2870         CtdlLogPrintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2871         if (strcasecmp(hold_rm, CCC->room.QRname))
2872                 usergoto(hold_rm, 0, 1, NULL, NULL);
2873
2874         /* For internet mail, generate delivery instructions.
2875          * Yes, this is recursive.  Deal with it.  Infinite recursion does
2876          * not happen because the delivery instructions message does not
2877          * contain a recipient.
2878          */
2879         if (recps != NULL)
2880          if (recps->num_internet > 0) {
2881                 CtdlLogPrintf(CTDL_DEBUG, "Generating delivery instructions\n");
2882                 instr_alloc = 1024;
2883                 instr = malloc(instr_alloc);
2884                 snprintf(instr, instr_alloc,
2885                         "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2886                         "bounceto|%s\n",
2887                         SPOOLMIME, newmsgid, (long)time(NULL),
2888                         bounce_to
2889                 );
2890
2891                 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2892                         size_t tmp = strlen(instr);
2893                         extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2894                         if ((tmp + strlen(recipient) + 32) > instr_alloc) {
2895                                 instr_alloc = instr_alloc * 2;
2896                                 instr = realloc(instr, instr_alloc);
2897                         }
2898                         snprintf(&instr[tmp], instr_alloc - tmp, "remote|%s|0||\n", recipient);
2899                 }
2900
2901                 imsg = malloc(sizeof(struct CtdlMessage));
2902                 memset(imsg, 0, sizeof(struct CtdlMessage));
2903                 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2904                 imsg->cm_anon_type = MES_NORMAL;
2905                 imsg->cm_format_type = FMT_RFC822;
2906                 imsg->cm_fields['A'] = strdup("Citadel");
2907                 imsg->cm_fields['J'] = strdup("do not journal");
2908                 imsg->cm_fields['M'] = instr;   /* imsg owns this memory now */
2909                 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
2910                 CtdlFreeMessage(imsg);
2911         }
2912
2913         /*
2914          * Any addresses to harvest for someone's address book?
2915          */
2916         if ( (CCC->logged_in) && (recps != NULL) ) {
2917                 collected_addresses = harvest_collected_addresses(msg);
2918         }
2919
2920         if (collected_addresses != NULL) {
2921                 aptr = (struct addresses_to_be_filed *)
2922                         malloc(sizeof(struct addresses_to_be_filed));
2923                 MailboxName(actual_rm, sizeof actual_rm,
2924                         &CCC->user, USERCONTACTSROOM);
2925                 aptr->roomname = strdup(actual_rm);
2926                 aptr->collected_addresses = collected_addresses;
2927                 begin_critical_section(S_ATBF);
2928                 aptr->next = atbf;
2929                 atbf = aptr;
2930                 end_critical_section(S_ATBF);
2931         }
2932
2933         /*
2934          * Determine whether this message qualifies for journaling.
2935          */
2936         if (msg->cm_fields['J'] != NULL) {
2937                 qualified_for_journaling = 0;
2938         }
2939         else {
2940                 if (recps == NULL) {
2941                         qualified_for_journaling = config.c_journal_pubmsgs;
2942                 }
2943                 else if (recps->num_local + recps->num_ignet + recps->num_internet > 0) {
2944                         qualified_for_journaling = config.c_journal_email;
2945                 }
2946                 else {
2947                         qualified_for_journaling = config.c_journal_pubmsgs;
2948                 }
2949         }
2950
2951         /*
2952          * Do we have to perform journaling?  If so, hand off the saved
2953          * RFC822 version will be handed off to the journaler for background
2954          * submit.  Otherwise, we have to free the memory ourselves.
2955          */
2956         if (saved_rfc822_version != NULL) {
2957                 if (qualified_for_journaling) {
2958                         JournalBackgroundSubmit(msg, saved_rfc822_version, recps);
2959                 }
2960                 else {
2961                         free(saved_rfc822_version);
2962                 }
2963         }
2964
2965         /* Done. */
2966         return(newmsgid);
2967 }
2968
2969
2970
2971
2972
2973 /*
2974  * Convenience function for generating small administrative messages.
2975  */
2976 void quickie_message(char *from, char *fromaddr, char *to, char *room, char *text, 
2977                         int format_type, char *subject)
2978 {
2979         struct CtdlMessage *msg;
2980         struct recptypes *recp = NULL;
2981
2982         msg = malloc(sizeof(struct CtdlMessage));
2983         memset(msg, 0, sizeof(struct CtdlMessage));
2984         msg->cm_magic = CTDLMESSAGE_MAGIC;
2985         msg->cm_anon_type = MES_NORMAL;
2986         msg->cm_format_type = format_type;
2987
2988         if (from != NULL) {
2989                 msg->cm_fields['A'] = strdup(from);
2990         }
2991         else if (fromaddr != NULL) {
2992                 msg->cm_fields['A'] = strdup(fromaddr);
2993                 if (strchr(msg->cm_fields['A'], '@')) {
2994                         *strchr(msg->cm_fields['A'], '@') = 0;
2995                 }
2996         }
2997         else {
2998                 msg->cm_fields['A'] = strdup("Citadel");
2999         }
3000
3001         if (fromaddr != NULL) msg->cm_fields['F'] = strdup(fromaddr);
3002         if (room != NULL) msg->cm_fields['O'] = strdup(room);
3003         msg->cm_fields['N'] = strdup(NODENAME);
3004         if (to != NULL) {
3005                 msg->cm_fields['R'] = strdup(to);
3006                 recp = validate_recipients(to, NULL, 0);
3007         }
3008         if (subject != NULL) {
3009                 msg->cm_fields['U'] = strdup(subject);
3010         }
3011         msg->cm_fields['M'] = strdup(text);
3012
3013         CtdlSubmitMsg(msg, recp, room, 0);
3014         CtdlFreeMessage(msg);
3015         if (recp != NULL) free_recipients(recp);
3016 }
3017
3018
3019
3020 /*
3021  * Back end function used by CtdlMakeMessage() and similar functions
3022  */
3023 char *CtdlReadMessageBody(char *terminator,     /* token signalling EOT */
3024                         size_t maxlen,          /* maximum message length */
3025                         char *exist,            /* if non-null, append to it;
3026                                                    exist is ALWAYS freed  */
3027                         int crlf,               /* CRLF newlines instead of LF */
3028                         int sock                /* socket handle or 0 for this session's client socket */
3029                         ) {
3030         char buf[1024];
3031         int linelen;
3032         size_t message_len = 0;
3033         size_t buffer_len = 0;
3034         char *ptr;
3035         char *m;
3036         int flushing = 0;
3037         int finished = 0;
3038         int dotdot = 0;
3039
3040         if (exist == NULL) {
3041                 m = malloc(4096);
3042                 m[0] = 0;
3043                 buffer_len = 4096;
3044                 message_len = 0;
3045         }
3046         else {
3047                 message_len = strlen(exist);
3048                 buffer_len = message_len + 4096;
3049                 m = realloc(exist, buffer_len);
3050                 if (m == NULL) {
3051                         free(exist);
3052                         return m;
3053                 }
3054         }
3055
3056         /* Do we need to change leading ".." to "." for SMTP escaping? */
3057         if (!strcmp(terminator, ".")) {
3058                 dotdot = 1;
3059         }
3060
3061         /* flush the input if we have nowhere to store it */
3062         if (m == NULL) {
3063                 flushing = 1;
3064         }
3065
3066         /* read in the lines of message text one by one */
3067         do {
3068                 if (sock > 0) {
3069                         if (sock_getln(sock, buf, (sizeof buf - 3)) < 0) finished = 1;
3070                 }
3071                 else {
3072                         if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
3073                 }
3074                 if (!strcmp(buf, terminator)) finished = 1;
3075                 if (crlf) {
3076                         strcat(buf, "\r\n");
3077                 }
3078                 else {
3079                         strcat(buf, "\n");
3080                 }
3081
3082                 /* Unescape SMTP-style input of two dots at the beginning of the line */
3083                 if (dotdot) {
3084                         if (!strncmp(buf, "..", 2)) {
3085                                 strcpy(buf, &buf[1]);
3086                         }
3087                 }
3088
3089                 if ( (!flushing) && (!finished) ) {
3090                         /* Measure the line */
3091                         linelen = strlen(buf);
3092         
3093                         /* augment the buffer if we have to */
3094                         if ((message_len + linelen) >= buffer_len) {
3095                                 ptr = realloc(m, (buffer_len * 2) );
3096                                 if (ptr == NULL) {      /* flush if can't allocate */
3097                                         flushing = 1;
3098                                 } else {
3099                                         buffer_len = (buffer_len * 2);
3100                                         m = ptr;
3101                                         CtdlLogPrintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
3102                                 }
3103                         }
3104         
3105                         /* Add the new line to the buffer.  NOTE: this loop must avoid
3106                         * using functions like strcat() and strlen() because they
3107                         * traverse the entire buffer upon every call, and doing that
3108                         * for a multi-megabyte message slows it down beyond usability.
3109                         */
3110                         strcpy(&m[message_len], buf);
3111                         message_len += linelen;
3112                 }
3113
3114                 /* if we've hit the max msg length, flush the rest */
3115                 if (message_len >= maxlen) flushing = 1;
3116
3117         } while (!finished);
3118         return(m);
3119 }
3120
3121
3122
3123
3124 /*
3125  * Build a binary message to be saved on disk.
3126  * (NOTE: if you supply 'preformatted_text', the buffer you give it
3127  * will become part of the message.  This means you are no longer
3128  * responsible for managing that memory -- it will be freed along with
3129  * the rest of the fields when CtdlFreeMessage() is called.)
3130  */
3131
3132 struct CtdlMessage *CtdlMakeMessage(
3133         struct ctdluser *author,        /* author's user structure */
3134         char *recipient,                /* NULL if it's not mail */
3135         char *recp_cc,                  /* NULL if it's not mail */
3136         char *room,                     /* room where it's going */
3137         int type,                       /* see MES_ types in header file */
3138         int format_type,                /* variformat, plain text, MIME... */
3139         char *fake_name,                /* who we're masquerading as */
3140         char *my_email,                 /* which of my email addresses to use (empty is ok) */
3141         char *subject,                  /* Subject (optional) */
3142         char *supplied_euid,            /* ...or NULL if this is irrelevant */
3143         char *preformatted_text,        /* ...or NULL to read text from client */
3144         char *references                /* Thread references */
3145 ) {
3146         char dest_node[256];
3147         char buf[1024];
3148         struct CtdlMessage *msg;
3149
3150         msg = malloc(sizeof(struct CtdlMessage));
3151         memset(msg, 0, sizeof(struct CtdlMessage));
3152         msg->cm_magic = CTDLMESSAGE_MAGIC;
3153         msg->cm_anon_type = type;
3154         msg->cm_format_type = format_type;
3155
3156         /* Don't confuse the poor folks if it's not routed mail. */
3157         strcpy(dest_node, "");
3158
3159         striplt(recipient);
3160         striplt(recp_cc);
3161
3162         /* Path or Return-Path */
3163         if (my_email == NULL) my_email = "";
3164
3165         if (!IsEmptyStr(my_email)) {
3166                 msg->cm_fields['P'] = strdup(my_email);
3167         }
3168         else {
3169                 snprintf(buf, sizeof buf, "%s", author->fullname);
3170                 msg->cm_fields['P'] = strdup(buf);
3171         }
3172         convert_spaces_to_underscores(msg->cm_fields['P']);
3173
3174         snprintf(buf, sizeof buf, "%ld", (long)time(NULL));     /* timestamp */
3175         msg->cm_fields['T'] = strdup(buf);
3176
3177         if (fake_name[0])                                       /* author */
3178                 msg->cm_fields['A'] = strdup(fake_name);
3179         else
3180                 msg->cm_fields['A'] = strdup(author->fullname);
3181
3182         if (CC->room.QRflags & QR_MAILBOX) {            /* room */
3183                 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
3184         }
3185         else {
3186                 msg->cm_fields['O'] = strdup(CC->room.QRname);
3187         }
3188
3189         msg->cm_fields['N'] = strdup(NODENAME);         /* nodename */
3190         msg->cm_fields['H'] = strdup(HUMANNODE);                /* hnodename */
3191
3192         if (recipient[0] != 0) {
3193                 msg->cm_fields['R'] = strdup(recipient);
3194         }
3195         if (recp_cc[0] != 0) {
3196                 msg->cm_fields['Y'] = strdup(recp_cc);
3197         }
3198         if (dest_node[0] != 0) {
3199                 msg->cm_fields['D'] = strdup(dest_node);
3200         }
3201
3202         if (!IsEmptyStr(my_email)) {
3203                 msg->cm_fields['F'] = strdup(my_email);
3204         }
3205         else if ( (author == &CC->user) && (!IsEmptyStr(CC->cs_inet_email)) ) {
3206                 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
3207         }
3208
3209         if (subject != NULL) {
3210                 long length;
3211                 striplt(subject);
3212                 length = strlen(subject);
3213                 if (length > 0) {
3214                         long i;
3215                         long IsAscii;
3216                         IsAscii = -1;
3217                         i = 0;
3218                         while ((subject[i] != '\0') &&
3219                                (IsAscii = isascii(subject[i]) != 0 ))
3220                                 i++;
3221                         if (IsAscii != 0)
3222                                 msg->cm_fields['U'] = strdup(subject);
3223                         else /* ok, we've got utf8 in the string. */
3224                         {
3225                                 msg->cm_fields['U'] = rfc2047encode(subject, length);
3226                         }
3227
3228                 }
3229         }
3230
3231         if (supplied_euid != NULL) {
3232                 msg->cm_fields['E'] = strdup(supplied_euid);
3233         }
3234
3235         if (references != NULL) {
3236                 if (!IsEmptyStr(references)) {
3237                         msg->cm_fields['W'] = strdup(references);
3238                 }
3239         }
3240
3241         if (preformatted_text != NULL) {
3242                 msg->cm_fields['M'] = preformatted_text;
3243         }
3244         else {
3245                 msg->cm_fields['M'] = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
3246         }
3247
3248         return(msg);
3249 }
3250
3251
3252 /*
3253  * Check to see whether we have permission to post a message in the current
3254  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
3255  * returns 0 on success.
3256  */
3257 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, 
3258                                           size_t n, 
3259                                           const char* RemoteIdentifier,
3260                                           int PostPublic) {
3261         int ra;
3262
3263         if (!(CC->logged_in) && 
3264             (PostPublic == POST_LOGGED_IN)) {
3265                 snprintf(errmsgbuf, n, "Not logged in.");
3266                 return (ERROR + NOT_LOGGED_IN);
3267         }
3268         else if (PostPublic == CHECK_EXISTANCE) {
3269                 return (0); // We're Evaling whether a recipient exists
3270         }
3271         else if (!(CC->logged_in)) {
3272                 
3273                 if ((CC->room.QRflags & QR_READONLY)) {
3274                         snprintf(errmsgbuf, n, "Not logged in.");
3275                         return (ERROR + NOT_LOGGED_IN);
3276                 }
3277                 if (CC->room.QRflags2 & QR2_MODERATED) {
3278                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
3279                         return (ERROR + NOT_LOGGED_IN);
3280                 }
3281                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
3282                         SpoolControl *sc;
3283                         char filename[SIZ];
3284                         int found;
3285
3286                         if (RemoteIdentifier == NULL)
3287                         {
3288                                 snprintf(errmsgbuf, n, "Need sender to permit access.");
3289                                 return (ERROR + USERNAME_REQUIRED);
3290                         }
3291
3292                         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
3293                         begin_critical_section(S_NETCONFIGS);
3294                         if (!read_spoolcontrol_file(&sc, filename))
3295                         {
3296                                 end_critical_section(S_NETCONFIGS);
3297                                 snprintf(errmsgbuf, n,
3298                                         "This mailing list only accepts posts from subscribers.");
3299                                 return (ERROR + NO_SUCH_USER);
3300                         }
3301                         end_critical_section(S_NETCONFIGS);
3302                         found = is_recipient (sc, RemoteIdentifier);
3303                         free_spoolcontrol_struct(&sc);
3304                         if (found) {
3305                                 return (0);
3306                         }
3307                         else {
3308                                 snprintf(errmsgbuf, n,
3309                                         "This mailing list only accepts posts from subscribers.");
3310                                 return (ERROR + NO_SUCH_USER);
3311                         }
3312                 }
3313                 return (0);
3314
3315         }
3316
3317         if ((CC->user.axlevel < 2)
3318             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
3319                 snprintf(errmsgbuf, n, "Need to be validated to enter "
3320                                 "(except in %s> to sysop)", MAILROOM);
3321                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3322         }
3323
3324         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
3325         if (!(ra & UA_POSTALLOWED)) {
3326                 snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
3327                 return (ERROR + HIGHER_ACCESS_REQUIRED);
3328         }
3329
3330         strcpy(errmsgbuf, "Ok");
3331         return(0);
3332 }
3333
3334
3335 /*
3336  * Check to see if the specified user has Internet mail permission
3337  * (returns nonzero if permission is granted)
3338  */
3339 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
3340
3341         /* Do not allow twits to send Internet mail */
3342         if (who->axlevel <= 2) return(0);
3343
3344         /* Globally enabled? */
3345         if (config.c_restrict == 0) return(1);
3346
3347         /* User flagged ok? */
3348         if (who->flags & US_INTERNET) return(2);
3349
3350         /* Aide level access? */
3351         if (who->axlevel >= 6) return(3);
3352
3353         /* No mail for you! */
3354         return(0);
3355 }
3356
3357
3358 /*
3359  * Validate recipients, count delivery types and errors, and handle aliasing
3360  * FIXME check for dupes!!!!!
3361  *
3362  * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses 
3363  * were specified, or the number of addresses found invalid.
3364  *
3365  * Caller needs to free the result using free_recipients()
3366  */
3367 struct recptypes *validate_recipients(char *supplied_recipients, 
3368                                       const char *RemoteIdentifier, 
3369                                       int Flags) {
3370         struct recptypes *ret;
3371         char *recipients = NULL;
3372         char this_recp[256];
3373         char this_recp_cooked[256];
3374         char append[SIZ];
3375         int num_recps = 0;
3376         int i, j;
3377         int mailtype;
3378         int invalid;
3379         struct ctdluser tempUS;
3380         struct ctdlroom tempQR;
3381         struct ctdlroom tempQR2;
3382         int err = 0;
3383         char errmsg[SIZ];
3384         int in_quotes = 0;
3385
3386         /* Initialize */
3387         ret = (struct recptypes *) malloc(sizeof(struct recptypes));
3388         if (ret == NULL) return(NULL);
3389
3390         /* Set all strings to null and numeric values to zero */
3391         memset(ret, 0, sizeof(struct recptypes));
3392
3393         if (supplied_recipients == NULL) {
3394                 recipients = strdup("");
3395         }
3396         else {
3397                 recipients = strdup(supplied_recipients);
3398         }
3399
3400         /* Allocate some memory.  Yes, this allocates 500% more memory than we will
3401          * actually need, but it's healthier for the heap than doing lots of tiny
3402          * realloc() calls instead.
3403          */
3404
3405         ret->errormsg = malloc(strlen(recipients) + 1024);
3406         ret->recp_local = malloc(strlen(recipients) + 1024);
3407         ret->recp_internet = malloc(strlen(recipients) + 1024);
3408         ret->recp_ignet = malloc(strlen(recipients) + 1024);
3409         ret->recp_room = malloc(strlen(recipients) + 1024);
3410         ret->display_recp = malloc(strlen(recipients) + 1024);
3411
3412         ret->errormsg[0] = 0;
3413         ret->recp_local[0] = 0;
3414         ret->recp_internet[0] = 0;
3415         ret->recp_ignet[0] = 0;
3416         ret->recp_room[0] = 0;
3417         ret->display_recp[0] = 0;
3418
3419         ret->recptypes_magic = RECPTYPES_MAGIC;
3420
3421         /* Change all valid separator characters to commas */
3422         for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
3423                 if ((recipients[i] == ';') || (recipients[i] == '|')) {
3424                         recipients[i] = ',';
3425                 }
3426         }
3427
3428         /* Now start extracting recipients... */
3429
3430         while (!IsEmptyStr(recipients)) {
3431
3432                 for (i=0; i<=strlen(recipients); ++i) {
3433                         if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
3434                         if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
3435                                 safestrncpy(this_recp, recipients, i+1);
3436                                 this_recp[i] = 0;
3437                                 if (recipients[i] == ',') {
3438                                         strcpy(recipients, &recipients[i+1]);
3439                                 }
3440                                 else {
3441                                         strcpy(recipients, "");
3442                                 }
3443                                 break;
3444                         }
3445                 }
3446
3447                 striplt(this_recp);
3448                 if (IsEmptyStr(this_recp))
3449                         break;
3450                 CtdlLogPrintf(CTDL_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
3451                 ++num_recps;
3452                 mailtype = alias(this_recp);
3453                 mailtype = alias(this_recp);
3454                 mailtype = alias(this_recp);
3455                 j = 0;
3456                 for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
3457                         if (this_recp[j]=='_') {
3458                                 this_recp_cooked[j] = ' ';
3459                         }
3460                         else {
3461                                 this_recp_cooked[j] = this_recp[j];
3462                         }
3463                 }
3464                 this_recp_cooked[j] = '\0';
3465                 invalid = 0;
3466                 errmsg[0] = 0;
3467                 switch(mailtype) {
3468                         case MES_LOCAL:
3469                                 if (!strcasecmp(this_recp, "sysop")) {
3470                                         ++ret->num_room;
3471                                         strcpy(this_recp, config.c_aideroom);
3472                                         if (!IsEmptyStr(ret->recp_room)) {
3473                                                 strcat(ret->recp_room, "|");
3474                                         }
3475                                         strcat(ret->recp_room, this_recp);
3476                                 }
3477                                 else if ( (!strncasecmp(this_recp, "room_", 5))
3478                                       && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
3479
3480                                         /* Save room so we can restore it later */
3481                                         tempQR2 = CC->room;
3482                                         CC->room = tempQR;
3483                                         
3484                                         /* Check permissions to send mail to this room */
3485                                         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, 
3486                                                                                     sizeof errmsg, 
3487                                                                                     RemoteIdentifier,
3488                                                                                     Flags
3489                                         );
3490                                         if (err)
3491                                         {
3492                                                 ++ret->num_error;
3493                                                 invalid = 1;
3494                                         } 
3495                                         else {
3496                                                 ++ret->num_room;
3497                                                 if (!IsEmptyStr(ret->recp_room)) {
3498                                                         strcat(ret->recp_room, "|");
3499                                                 }
3500                                                 strcat(ret->recp_room, &this_recp_cooked[5]);
3501                                         }
3502                                         
3503                                         /* Restore room in case something needs it */
3504                                         CC->room = tempQR2;
3505
3506                                 }
3507                                 else if (getuser(&tempUS, this_recp) == 0) {
3508                                         ++ret->num_local;
3509                                         strcpy(this_recp, tempUS.fullname);
3510                                         if (!IsEmptyStr(ret->recp_local)) {
3511                                                 strcat(ret->recp_local, "|");
3512                                         }
3513                                         strcat(ret->recp_local, this_recp);
3514                                 }
3515                                 else if (getuser(&tempUS, this_recp_cooked) == 0) {
3516                                         ++ret->num_local;
3517                                         strcpy(this_recp, tempUS.fullname);
3518                                         if (!IsEmptyStr(ret->recp_local)) {
3519                                                 strcat(ret->recp_local, "|");
3520                                         }
3521                                         strcat(ret->recp_local, this_recp);
3522                                 }
3523                                 else {
3524                                         ++ret->num_error;
3525                                         invalid = 1;
3526                                 }
3527                                 break;
3528                         case MES_INTERNET:
3529                                 /* Yes, you're reading this correctly: if the target
3530                                  * domain points back to the local system or an attached
3531                                  * Citadel directory, the address is invalid.  That's
3532                                  * because if the address were valid, we would have
3533                                  * already translated it to a local address by now.
3534                                  */
3535                                 if (IsDirectory(this_recp, 0)) {
3536                                         ++ret->num_error;
3537                                         invalid = 1;
3538                                 }
3539                                 else {
3540                                         ++ret->num_internet;
3541                                         if (!IsEmptyStr(ret->recp_internet)) {
3542                                                 strcat(ret->recp_internet, "|");
3543                                         }
3544                                         strcat(ret->recp_internet, this_recp);
3545                                 }
3546                                 break;
3547                         case MES_IGNET:
3548                                 ++ret->num_ignet;
3549                                 if (!IsEmptyStr(ret->recp_ignet)) {
3550                                         strcat(ret->recp_ignet, "|");
3551                                 }
3552                                 strcat(ret->recp_ignet, this_recp);
3553                                 break;
3554                         case MES_ERROR:
3555                                 ++ret->num_error;
3556                                 invalid = 1;
3557                                 break;
3558                 }
3559                 if (invalid) {
3560                         if (IsEmptyStr(errmsg)) {
3561                                 snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
3562                         }
3563                         else {
3564                                 snprintf(append, sizeof append, "%s", errmsg);
3565                         }
3566                         if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
3567                                 if (!IsEmptyStr(ret->errormsg)) {
3568                                         strcat(ret->errormsg, "; ");
3569                                 }
3570                                 strcat(ret->errormsg, append);
3571                         }
3572                 }
3573                 else {
3574                         if (IsEmptyStr(ret->display_recp)) {
3575                                 strcpy(append, this_recp);
3576                         }
3577                         else {
3578                                 snprintf(append, sizeof append, ", %s", this_recp);
3579                         }
3580                         if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
3581                                 strcat(ret->display_recp, append);
3582                         }
3583                 }
3584         }
3585
3586         if ((ret->num_local + ret->num_internet + ret->num_ignet +
3587            ret->num_room + ret->num_error) == 0) {
3588                 ret->num_error = (-1);
3589                 strcpy(ret->errormsg, "No recipients specified.");
3590         }
3591
3592         CtdlLogPrintf(CTDL_DEBUG, "validate_recipients()\n");
3593         CtdlLogPrintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
3594         CtdlLogPrintf(CTDL_DEBUG, "  room: %d <%s>\n", ret->num_room, ret->recp_room);
3595         CtdlLogPrintf(CTDL_DEBUG, "  inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
3596         CtdlLogPrintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
3597         CtdlLogPrintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
3598
3599         free(recipients);
3600         return(ret);
3601 }
3602
3603
3604 /*
3605  * Destructor for struct recptypes
3606  */
3607 void free_recipients(struct recptypes *valid) {
3608
3609         if (valid == NULL) {
3610                 return;
3611         }
3612
3613         if (valid->recptypes_magic != RECPTYPES_MAGIC) {
3614                 CtdlLogPrintf(CTDL_EMERG, "Attempt to call free_recipients() on some other data type!\n");
3615                 abort();
3616         }
3617
3618         if (valid->errormsg != NULL)            free(valid->errormsg);
3619         if (valid->recp_local != NULL)          free(valid->recp_local);
3620         if (valid->recp_internet != NULL)       free(valid->recp_internet);
3621         if (valid->recp_ignet != NULL)          free(valid->recp_ignet);
3622         if (valid->recp_room != NULL)           free(valid->recp_room);
3623         if (valid->display_recp != NULL)        free(valid->display_recp);
3624         free(valid);
3625 }
3626
3627
3628
3629 /*
3630  * message entry  -  mode 0 (normal)
3631  */
3632 void cmd_ent0(char *entargs)
3633 {
3634         int post = 0;
3635         char recp[SIZ];
3636         char cc[SIZ];
3637         char bcc[SIZ];
3638         char supplied_euid[128];
3639         int anon_flag = 0;
3640         int format_type = 0;
3641         char newusername[256];
3642         char newuseremail[256];
3643         struct CtdlMessage *msg;
3644         int anonymous = 0;
3645         char errmsg[SIZ];
3646         int err = 0;
3647         struct recptypes *valid = NULL;
3648         struct recptypes *valid_to = NULL;
3649         struct recptypes *valid_cc = NULL;
3650         struct recptypes *valid_bcc = NULL;
3651         char subject[SIZ];
3652         int subject_required = 0;
3653         int do_confirm = 0;
3654         long msgnum;
3655         int i, j;
3656         char buf[256];
3657         int newuseremail_ok = 0;
3658         char references[SIZ];
3659         char *ptr;
3660
3661         unbuffer_output();
3662
3663         post = extract_int(entargs, 0);
3664         extract_token(recp, entargs, 1, '|', sizeof recp);
3665         anon_flag = extract_int(entargs, 2);
3666         format_type = extract_int(entargs, 3);
3667         extract_token(subject, entargs, 4, '|', sizeof subject);
3668         extract_token(newusername, entargs, 5, '|', sizeof newusername);
3669         do_confirm = extract_int(entargs, 6);
3670         extract_token(cc, entargs, 7, '|', sizeof cc);
3671         extract_token(bcc, entargs, 8, '|', sizeof bcc);
3672         switch(CC->room.QRdefaultview) {
3673                 case VIEW_NOTES:
3674                 case VIEW_WIKI:
3675                         extract_token(supplied_euid, entargs, 9, '|', sizeof supplied_euid);
3676                         break;
3677                 default:
3678                         supplied_euid[0] = 0;
3679                         break;
3680         }
3681         extract_token(newuseremail, entargs, 10, '|', sizeof newuseremail);
3682         extract_token(references, entargs, 11, '|', sizeof references);
3683         for (ptr=references; *ptr != 0; ++ptr) {
3684                 if (*ptr == '!') *ptr = '|';
3685         }
3686
3687         /* first check to make sure the request is valid. */
3688
3689         err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg, NULL, POST_LOGGED_IN);
3690         if (err)
3691         {
3692                 cprintf("%d %s\n", err, errmsg);
3693                 return;
3694         }
3695
3696         /* Check some other permission type things. */
3697
3698         if (IsEmptyStr(newusername)) {
3699                 strcpy(newusername, CC->user.fullname);
3700         }
3701         if (  (CC->user.axlevel < 6)
3702            && (strcasecmp(newusername, CC->user.fullname))
3703            && (strcasecmp(newusername, CC->cs_inet_fn))
3704         ) {     
3705                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3706                         ERROR + HIGHER_ACCESS_REQUIRED,
3707                         newusername
3708                 );
3709                 return;
3710         }
3711
3712
3713         if (IsEmptyStr(newuseremail)) {
3714                 newuseremail_ok = 1;
3715         }
3716
3717         if (!IsEmptyStr(newuseremail)) {
3718                 if (!strcasecmp(newuseremail, CC->cs_inet_email)) {
3719                         newuseremail_ok = 1;
3720                 }
3721                 else if (!IsEmptyStr(CC->cs_inet_other_emails)) {
3722                         j = num_tokens(CC->cs_inet_other_emails, '|');
3723                         for (i=0; i<j; ++i) {
3724                                 extract_token(buf, CC->cs_inet_other_emails, i, '|', sizeof buf);
3725                                 if (!strcasecmp(newuseremail, buf)) {
3726                                         newuseremail_ok = 1;
3727                                 }
3728                         }
3729                 }
3730         }
3731
3732         if (!newuseremail_ok) {
3733                 cprintf("%d You don't have permission to author messages as '%s'.\n",
3734                         ERROR + HIGHER_ACCESS_REQUIRED,
3735                         newuseremail
3736                 );
3737                 return;
3738         }
3739
3740         CC->cs_flags |= CS_POSTING;
3741
3742         /* In mailbox rooms we have to behave a little differently --
3743          * make sure the user has specified at least one recipient.  Then
3744          * validate the recipient(s).  We do this for the Mail> room, as
3745          * well as any room which has the "Mailbox" view set.
3746          */
3747
3748         if (  ( (CC->room.QRflags & QR_MAILBOX) && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) )
3749            || ( (CC->room.QRflags & QR_MAILBOX) && (CC->curr_view == VIEW_MAILBOX) )
3750         ) {
3751                 if (CC->user.axlevel < 2) {
3752                         strcpy(recp, "sysop");
3753                         strcpy(cc, "");
3754                         strcpy(bcc, "");
3755                 }
3756
3757                 valid_to = validate_recipients(recp, NULL, 0);
3758                 if (valid_to->num_error > 0) {
3759                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_to->errormsg);
3760                         free_recipients(valid_to);
3761                         return;
3762                 }
3763
3764                 valid_cc = validate_recipients(cc, NULL, 0);
3765                 if (valid_cc->num_error > 0) {
3766                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_cc->errormsg);
3767                         free_recipients(valid_to);
3768                         free_recipients(valid_cc);
3769                         return;
3770                 }
3771
3772                 valid_bcc = validate_recipients(bcc, NULL, 0);
3773                 if (valid_bcc->num_error > 0) {
3774                         cprintf("%d %s\n", ERROR + NO_SUCH_USER, valid_bcc->errormsg);
3775                         free_recipients(valid_to);
3776                         free_recipients(valid_cc);
3777                         free_recipients(valid_bcc);
3778                         return;
3779                 }
3780
3781                 /* Recipient required, but none were specified */
3782                 if ( (valid_to->num_error < 0) && (valid_cc->num_error < 0) && (valid_bcc->num_error < 0) ) {
3783                         free_recipients(valid_to);
3784                         free_recipients(valid_cc);
3785                         free_recipients(valid_bcc);
3786                         cprintf("%d At least one recipient is required.\n", ERROR + NO_SUCH_USER);
3787                         return;
3788                 }
3789
3790                 if (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0) {
3791                         if (CtdlCheckInternetMailPermission(&CC->user)==0) {
3792                                 cprintf("%d You do not have permission "
3793                                         "to send Internet mail.\n",
3794                                         ERROR + HIGHER_ACCESS_REQUIRED);
3795                                 free_recipients(valid_to);
3796                                 free_recipients(valid_cc);
3797                                 free_recipients(valid_bcc);
3798                                 return;
3799                         }
3800                 }
3801
3802                 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)
3803                    && (CC->user.axlevel < 4) ) {
3804                         cprintf("%d Higher access required for network mail.\n",
3805                                 ERROR + HIGHER_ACCESS_REQUIRED);
3806                         free_recipients(valid_to);
3807                         free_recipients(valid_cc);
3808                         free_recipients(valid_bcc);
3809                         return;
3810                 }
3811         
3812                 if ((RESTRICT_INTERNET == 1)
3813                     && (valid_to->num_internet + valid_cc->num_internet + valid_bcc->num_internet > 0)
3814                     && ((CC->user.flags & US_INTERNET) == 0)
3815                     && (!CC->internal_pgm)) {
3816                         cprintf("%d You don't have access to Internet mail.\n",
3817                                 ERROR + HIGHER_ACCESS_REQUIRED);
3818                         free_recipients(valid_to);
3819                         free_recipients(valid_cc);
3820                         free_recipients(valid_bcc);
3821                         return;
3822                 }
3823
3824         }
3825
3826         /* Is this a room which has anonymous-only or anonymous-option? */
3827         anonymous = MES_NORMAL;
3828         if (CC->room.QRflags & QR_ANONONLY) {
3829                 anonymous = MES_ANONONLY;
3830         }
3831         if (CC->room.QRflags & QR_ANONOPT) {
3832                 if (anon_flag == 1) {   /* only if the user requested it */
3833                         anonymous = MES_ANONOPT;
3834                 }
3835         }
3836
3837         if ((CC->room.QRflags & QR_MAILBOX) == 0) {
3838                 recp[0] = 0;
3839         }
3840
3841         /* Recommend to the client that the use of a message subject is
3842          * strongly recommended in this room, if either the SUBJECTREQ flag
3843          * is set, or if there is one or more Internet email recipients.
3844          */
3845         if (CC->room.QRflags2 & QR2_SUBJECTREQ) subject_required = 1;
3846         if (valid_to) if (valid_to->num_internet > 0) subject_required = 1;
3847         if (valid_cc) if (valid_cc->num_internet > 0) subject_required = 1;
3848         if (valid_bcc) if (valid_bcc->num_internet > 0) subject_required = 1;
3849
3850         /* If we're only checking the validity of the request, return
3851          * success without creating the message.
3852          */
3853         if (post == 0) {
3854                 cprintf("%d %s|%d\n", CIT_OK,
3855                         ((valid_to != NULL) ? valid_to->display_recp : ""), 
3856                         subject_required);
3857                 free_recipients(valid_to);
3858                 free_recipients(valid_cc);
3859                 free_recipients(valid_bcc);
3860                 return;
3861         }
3862
3863         /* We don't need these anymore because we'll do it differently below */
3864         free_recipients(valid_to);
3865         free_recipients(valid_cc);
3866         free_recipients(valid_bcc);
3867
3868         /* Read in the message from the client. */
3869         if (do_confirm) {
3870                 cprintf("%d send message\n", START_CHAT_MODE);
3871         } else {
3872                 cprintf("%d send message\n", SEND_LISTING);
3873         }
3874
3875         msg = CtdlMakeMessage(&CC->user, recp, cc,
3876                 CC->room.QRname, anonymous, format_type,
3877                 newusername, newuseremail, subject,
3878                 ((!IsEmptyStr(supplied_euid)) ? supplied_euid : NULL),
3879                 NULL, references);
3880
3881         /* Put together one big recipients struct containing to/cc/bcc all in
3882          * one.  This is for the envelope.
3883          */
3884         char *all_recps = malloc(SIZ * 3);
3885         strcpy(all_recps, recp);
3886         if (!IsEmptyStr(cc)) {
3887                 if (!IsEmptyStr(all_recps)) {
3888                         strcat(all_recps, ",");
3889                 }
3890                 strcat(all_recps, cc);
3891         }
3892         if (!IsEmptyStr(bcc)) {
3893                 if (!IsEmptyStr(all_recps)) {
3894                         strcat(all_recps, ",");
3895                 }
3896                 strcat(all_recps, bcc);
3897         }
3898         if (!IsEmptyStr(all_recps)) {
3899                 valid = validate_recipients(all_recps, NULL, 0);
3900         }
3901         else {
3902                 valid = NULL;
3903         }
3904         free(all_recps);
3905
3906         if (msg != NULL) {
3907                 msgnum = CtdlSubmitMsg(msg, valid, "", QP_EADDR);
3908
3909                 if (do_confirm) {
3910                         cprintf("%ld\n", msgnum);
3911                         if (msgnum >= 0L) {
3912                                 cprintf("Message accepted.\n");
3913                         }
3914                         else {
3915                                 cprintf("Internal error.\n");
3916                         }
3917                         if (msg->cm_fields['E'] != NULL) {
3918                                 cprintf("%s\n", msg->cm_fields['E']);
3919                         } else {
3920                                 cprintf("\n");
3921                         }
3922                         cprintf("000\n");
3923                 }
3924
3925                 CtdlFreeMessage(msg);
3926         }
3927         if (valid != NULL) {
3928                 free_recipients(valid);
3929         }
3930         return;
3931 }
3932
3933
3934
3935 /*
3936  * API function to delete messages which match a set of criteria
3937  * (returns the actual number of messages deleted)
3938  */
3939 int CtdlDeleteMessages(char *room_name,         /* which room */
3940                         long *dmsgnums,         /* array of msg numbers to be deleted */
3941                         int num_dmsgnums,       /* number of msgs to be deleted, or 0 for "any" */
3942                         char *content_type      /* or "" for any.  regular expressions expected. */
3943 )
3944 {
3945         struct ctdlroom qrbuf;
3946         struct cdbdata *cdbfr;
3947         long *msglist = NULL;
3948         long *dellist = NULL;
3949         int num_msgs = 0;
3950         int i, j;
3951         int num_deleted = 0;
3952         int delete_this;
3953         struct MetaData smi;
3954         regex_t re;
3955         regmatch_t pm;
3956         int need_to_free_re = 0;
3957
3958         if (content_type) if (!IsEmptyStr(content_type)) {
3959                 regcomp(&re, content_type, 0);
3960                 need_to_free_re = 1;
3961         }
3962         CtdlLogPrintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %d msgs, %s)\n",
3963                 room_name, num_dmsgnums, content_type);
3964
3965         /* get room record, obtaining a lock... */
3966         if (lgetroom(&qrbuf, room_name) != 0) {
3967                 CtdlLogPrintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3968                         room_name);
3969                 if (need_to_free_re) regfree(&re);
3970                 return (0);     /* room not found */
3971         }
3972         cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3973
3974         if (cdbfr != NULL) {
3975                 dellist = malloc(cdbfr->len);
3976                 msglist = (long *) cdbfr->ptr;
3977                 cdbfr->ptr = NULL;      /* CtdlDeleteMessages() now owns this memory */
3978                 num_msgs = cdbfr->len / sizeof(long);
3979                 cdb_free(cdbfr);
3980         }
3981         if (num_msgs > 0) {
3982                 for (i = 0; i < num_msgs; ++i) {
3983                         delete_this = 0x00;
3984
3985                         /* Set/clear a bit for each criterion */
3986
3987                         /* 0 messages in the list or a null list means that we are
3988                          * interested in deleting any messages which meet the other criteria.
3989                          */
3990                         if ((num_dmsgnums == 0) || (dmsgnums == NULL)) {
3991                                 delete_this |= 0x01;
3992                         }
3993                         else {
3994                                 for (j=0; j<num_dmsgnums; ++j) {
3995                                         if (msglist[i] == dmsgnums[j]) {
3996                                                 delete_this |= 0x01;
3997                                         }
3998                                 }
3999                         }
4000
4001                         if (IsEmptyStr(content_type)) {
4002                                 delete_this |= 0x02;
4003                         } else {
4004                                 GetMetaData(&smi, msglist[i]);
4005                                 if (regexec(&re, smi.meta_content_type, 1, &pm, 0) == 0) {
4006                                         delete_this |= 0x02;
4007                                 }
4008                         }
4009
4010                         /* Delete message only if all bits are set */
4011                         if (delete_this == 0x03) {
4012                                 dellist[num_deleted++] = msglist[i];
4013                                 msglist[i] = 0L;
4014                         }
4015                 }
4016
4017                 num_msgs = sort_msglist(msglist, num_msgs);
4018                 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
4019                           msglist, (int)(num_msgs * sizeof(long)));
4020
4021                 qrbuf.QRhighest = msglist[num_msgs - 1];
4022         }
4023         lputroom(&qrbuf);
4024
4025         /* Go through the messages we pulled out of the index, and decrement
4026          * their reference counts by 1.  If this is the only room the message
4027          * was in, the reference count will reach zero and the message will
4028          * automatically be deleted from the database.  We do this in a
4029          * separate pass because there might be plug-in hooks getting called,
4030          * and we don't want that happening during an S_ROOMS critical
4031          * section.
4032          */
4033         if (num_deleted) for (i=0; i<num_deleted; ++i) {
4034                 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
4035                 AdjRefCount(dellist[i], -1);
4036         }
4037
4038         /* Now free the memory we used, and go away. */
4039         if (msglist != NULL) free(msglist);
4040         if (dellist != NULL) free(dellist);
4041         CtdlLogPrintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
4042         if (need_to_free_re) regfree(&re);
4043         return (num_deleted);
4044 }
4045
4046
4047
4048 /*
4049  * Check whether the current user has permission to delete messages from
4050  * the current room (returns 1 for yes, 0 for no)
4051  */
4052 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
4053         int ra;
4054         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
4055         if (ra & UA_DELETEALLOWED) return(1);
4056         return(0);
4057 }
4058
4059
4060
4061
4062 /*
4063  * Delete message from current room
4064  */
4065 void cmd_dele(char *args)
4066 {
4067         int num_deleted;
4068         int i;
4069         char msgset[SIZ];
4070         char msgtok[32];
4071         long *msgs;
4072         int num_msgs = 0;
4073
4074         extract_token(msgset, args, 0, '|', sizeof msgset);
4075         num_msgs = num_tokens(msgset, ',');
4076         if (num_msgs < 1) {
4077                 cprintf("%d Nothing to do.\n", CIT_OK);
4078                 return;
4079         }
4080
4081         if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
4082                 cprintf("%d Higher access required.\n",
4083                         ERROR + HIGHER_ACCESS_REQUIRED);
4084                 return;
4085         }
4086
4087         /*
4088          * Build our message set to be moved/copied
4089          */
4090         msgs = malloc(num_msgs * sizeof(long));
4091         for (i=0; i<num_msgs; ++i) {
4092                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4093                 msgs[i] = atol(msgtok);
4094         }
4095
4096         num_deleted = CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4097         free(msgs);
4098
4099         if (num_deleted) {
4100                 cprintf("%d %d message%s deleted.\n", CIT_OK,
4101                         num_deleted, ((num_deleted != 1) ? "s" : ""));
4102         } else {
4103                 cprintf("%d Message not found.\n", ERROR + MESSAGE_NOT_FOUND);
4104         }
4105 }
4106
4107
4108 /*
4109  * Back end API function for moves and deletes (multiple messages)
4110  */
4111 int CtdlCopyMsgsToRoom(long *msgnums, int num_msgs, char *dest) {
4112         int err;
4113
4114         err = CtdlSaveMsgPointersInRoom(dest, msgnums, num_msgs, 1, NULL);
4115         if (err != 0) return(err);
4116
4117         return(0);
4118 }
4119
4120
4121
4122
4123 /*
4124  * move or copy a message to another room
4125  */
4126 void cmd_move(char *args)
4127 {
4128         char msgset[SIZ];
4129         char msgtok[32];
4130         long *msgs;
4131         int num_msgs = 0;
4132
4133         char targ[ROOMNAMELEN];
4134         struct ctdlroom qtemp;
4135         int err;
4136         int is_copy = 0;
4137         int ra;
4138         int permit = 0;
4139         int i;
4140
4141         extract_token(msgset, args, 0, '|', sizeof msgset);
4142         num_msgs = num_tokens(msgset, ',');
4143         if (num_msgs < 1) {
4144                 cprintf("%d Nothing to do.\n", CIT_OK);
4145                 return;
4146         }
4147
4148         extract_token(targ, args, 1, '|', sizeof targ);
4149         convert_room_name_macros(targ, sizeof targ);
4150         targ[ROOMNAMELEN - 1] = 0;
4151         is_copy = extract_int(args, 2);
4152
4153         if (getroom(&qtemp, targ) != 0) {
4154                 cprintf("%d '%s' does not exist.\n",
4155                         ERROR + ROOM_NOT_FOUND, targ);
4156                 return;
4157         }
4158
4159         getuser(&CC->user, CC->curr_user);
4160         CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
4161
4162         /* Check for permission to perform this operation.
4163          * Remember: "CC->room" is source, "qtemp" is target.
4164          */
4165         permit = 0;
4166
4167         /* Aides can move/copy */
4168         if (CC->user.axlevel >= 6) permit = 1;
4169
4170         /* Room aides can move/copy */
4171         if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
4172
4173         /* Permit move/copy from personal rooms */
4174         if ((CC->room.QRflags & QR_MAILBOX)
4175            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4176
4177         /* Permit only copy from public to personal room */
4178         if ( (is_copy)
4179            && (!(CC->room.QRflags & QR_MAILBOX))
4180            && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
4181
4182         /* Permit message removal from collaborative delete rooms */
4183         if (CC->room.QRflags2 & QR2_COLLABDEL) permit = 1;
4184
4185         /* Users allowed to post into the target room may move into it too. */
4186         if ((CC->room.QRflags & QR_MAILBOX) && 
4187             (qtemp.QRflags & UA_POSTALLOWED))  permit = 1;
4188
4189         /* User must have access to target room */
4190         if (!(ra & UA_KNOWN))  permit = 0;
4191
4192         if (!permit) {
4193                 cprintf("%d Higher access required.\n",
4194                         ERROR + HIGHER_ACCESS_REQUIRED);
4195                 return;
4196         }
4197
4198         /*
4199          * Build our message set to be moved/copied
4200          */
4201         msgs = malloc(num_msgs * sizeof(long));
4202         for (i=0; i<num_msgs; ++i) {
4203                 extract_token(msgtok, msgset, i, ',', sizeof msgtok);
4204                 msgs[i] = atol(msgtok);
4205         }
4206
4207         /*
4208          * Do the copy
4209          */
4210         err = CtdlCopyMsgsToRoom(msgs, num_msgs, targ);
4211         if (err != 0) {
4212                 cprintf("%d Cannot store message(s) in %s: error %d\n",
4213                         err, targ, err);
4214                 free(msgs);
4215                 return;
4216         }
4217
4218         /* Now delete the message from the source room,
4219          * if this is a 'move' rather than a 'copy' operation.
4220          */
4221         if (is_copy == 0) {
4222                 CtdlDeleteMessages(CC->room.QRname, msgs, num_msgs, "");
4223         }
4224         free(msgs);
4225
4226         cprintf("%d Message(s) %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
4227 }
4228
4229
4230
4231 /*
4232  * GetMetaData()  -  Get the supplementary record for a message
4233  */
4234 void GetMetaData(struct MetaData *smibuf, long msgnum)
4235 {
4236
4237         struct cdbdata *cdbsmi;
4238         long TheIndex;
4239
4240         memset(smibuf, 0, sizeof(struct MetaData));
4241         smibuf->meta_msgnum = msgnum;
4242         smibuf->meta_refcount = 1;      /* Default reference count is 1 */
4243
4244         /* Use the negative of the message number for its supp record index */
4245         TheIndex = (0L - msgnum);
4246
4247         cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
4248         if (cdbsmi == NULL) {
4249                 return;         /* record not found; go with defaults */
4250         }
4251         memcpy(smibuf, cdbsmi->ptr,
4252                ((cdbsmi->len > sizeof(struct MetaData)) ?
4253                 sizeof(struct MetaData) : cdbsmi->len));
4254         cdb_free(cdbsmi);
4255         return;
4256 }
4257
4258
4259 /*
4260  * PutMetaData()  -  (re)write supplementary record for a message
4261  */
4262 void PutMetaData(struct MetaData *smibuf)
4263 {
4264         long TheIndex;
4265
4266         /* Use the negative of the message number for the metadata db index */
4267         TheIndex = (0L - smibuf->meta_msgnum);
4268
4269         cdb_store(CDB_MSGMAIN,
4270                   &TheIndex, (int)sizeof(long),
4271                   smibuf, (int)sizeof(struct MetaData));
4272
4273 }
4274
4275 /*
4276  * AdjRefCount  -  submit an adjustment to the reference count for a message.
4277  *                 (These are just queued -- we actually process them later.)
4278  */
4279 void AdjRefCount(long msgnum, int incr)
4280 {
4281         struct arcq new_arcq;
4282
4283         begin_critical_section(S_SUPPMSGMAIN);
4284         if (arcfp == NULL) {
4285                 arcfp = fopen(file_arcq, "ab+");
4286         }
4287         end_critical_section(S_SUPPMSGMAIN);
4288
4289         /* msgnum < 0 means that we're trying to close the file */
4290         if (msgnum < 0) {
4291                 CtdlLogPrintf(CTDL_DEBUG, "Closing the AdjRefCount queue file\n");
4292                 begin_critical_section(S_SUPPMSGMAIN);
4293                 if (arcfp != NULL) {
4294                         fclose(arcfp);
4295                         arcfp = NULL;
4296                 }
4297                 end_critical_section(S_SUPPMSGMAIN);
4298                 return;
4299         }
4300
4301         /*
4302          * If we can't open the queue, perform the operation synchronously.
4303          */
4304         if (arcfp == NULL) {
4305                 TDAP_AdjRefCount(msgnum, incr);
4306                 return;
4307         }
4308
4309         new_arcq.arcq_msgnum = msgnum;
4310         new_arcq.arcq_delta = incr;
4311         fwrite(&new_arcq, sizeof(struct arcq), 1, arcfp);
4312         fflush(arcfp);
4313
4314         return;
4315 }
4316
4317
4318 /*
4319  * TDAP_ProcessAdjRefCountQueue()
4320  *
4321  * Process the queue of message count adjustments that was created by calls
4322  * to AdjRefCount() ... by reading the queue and calling TDAP_AdjRefCount()
4323  * for each one.  This should be an "off hours" operation.
4324  */
4325 int TDAP_ProcessAdjRefCountQueue(void)
4326 {
4327         char file_arcq_temp[PATH_MAX];
4328         int r;
4329         FILE *fp;
4330         struct arcq arcq_rec;
4331         int num_records_processed = 0;
4332
4333         snprintf(file_arcq_temp, sizeof file_arcq_temp, "%s2", file_arcq);
4334
4335         begin_critical_section(S_SUPPMSGMAIN);
4336         if (arcfp != NULL) {
4337                 fclose(arcfp);
4338                 arcfp = NULL;
4339         }
4340
4341         r = link(file_arcq, file_arcq_temp);
4342         if (r != 0) {
4343                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4344                 end_critical_section(S_SUPPMSGMAIN);
4345                 return(num_records_processed);
4346         }
4347
4348         unlink(file_arcq);
4349         end_critical_section(S_SUPPMSGMAIN);
4350
4351         fp = fopen(file_arcq_temp, "rb");
4352         if (fp == NULL) {
4353                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4354                 return(num_records_processed);
4355         }
4356
4357         while (fread(&arcq_rec, sizeof(struct arcq), 1, fp) == 1) {
4358                 TDAP_AdjRefCount(arcq_rec.arcq_msgnum, arcq_rec.arcq_delta);
4359                 ++num_records_processed;
4360         }
4361
4362         fclose(fp);
4363         r = unlink(file_arcq_temp);
4364         if (r != 0) {
4365                 CtdlLogPrintf(CTDL_CRIT, "%s: %s\n", file_arcq_temp, strerror(errno));
4366         }
4367
4368         return(num_records_processed);
4369 }
4370
4371
4372
4373 /*
4374  * TDAP_AdjRefCount  -  adjust the reference count for a message.
4375  *                      This one does it "for real" because it's called by
4376  *                      the autopurger function that processes the queue
4377  *                      created by AdjRefCount().   If a message's reference
4378  *                      count becomes zero, we also delete the message from
4379  *                      disk and de-index it.
4380  */
4381 void TDAP_AdjRefCount(long msgnum, int incr)
4382 {
4383
4384         struct MetaData smi;
4385         long delnum;
4386
4387         /* This is a *tight* critical section; please keep it that way, as
4388          * it may get called while nested in other critical sections.  
4389          * Complicating this any further will surely cause deadlock!
4390          */
4391         begin_critical_section(S_SUPPMSGMAIN);
4392         GetMetaData(&smi, msgnum);
4393         smi.meta_refcount += incr;
4394         PutMetaData(&smi);
4395         end_critical_section(S_SUPPMSGMAIN);
4396         CtdlLogPrintf(CTDL_DEBUG, "msg %ld ref count delta %d, is now %d\n",
4397                 msgnum, incr, smi.meta_refcount);
4398
4399         /* If the reference count is now zero, delete the message
4400          * (and its supplementary record as well).
4401          */
4402         if (smi.meta_refcount == 0) {
4403                 CtdlLogPrintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
4404                 
4405                 /* Call delete hooks with NULL room to show it has gone altogether */
4406                 PerformDeleteHooks(NULL, msgnum);
4407
4408                 /* Remove from message base */
4409                 delnum = msgnum;
4410                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4411                 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
4412
4413                 /* Remove metadata record */
4414                 delnum = (0L - msgnum);
4415                 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
4416         }
4417
4418 }
4419
4420 /*
4421  * Write a generic object to this room
4422  *
4423  * Note: this could be much more efficient.  Right now we use two temporary
4424  * files, and still pull the message into memory as with all others.
4425  */
4426 void CtdlWriteObject(char *req_room,            /* Room to stuff it in */
4427                         char *content_type,     /* MIME type of this object */
4428                         char *tempfilename,     /* Where to fetch it from */
4429                         struct ctdluser *is_mailbox,    /* Mailbox room? */
4430                         int is_binary,          /* Is encoding necessary? */
4431                         int is_unique,          /* Del others of this type? */
4432                         unsigned int flags      /* Internal save flags */
4433                         )
4434 {
4435
4436         FILE *fp;
4437         struct ctdlroom qrbuf;
4438         char roomname[ROOMNAMELEN];
4439         struct CtdlMessage *msg;
4440
4441         char *raw_message = NULL;
4442         char *encoded_message = NULL;
4443         off_t raw_length = 0;
4444
4445         if (is_mailbox != NULL) {
4446                 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
4447         }
4448         else {
4449                 safestrncpy(roomname, req_room, sizeof(roomname));
4450         }
4451
4452         fp = fopen(tempfilename, "rb");
4453         if (fp == NULL) {
4454                 CtdlLogPrintf(CTDL_CRIT, "Cannot open %s: %s\n",
4455                         tempfilename, strerror(errno));
4456                 return;
4457         }
4458         fseek(fp, 0L, SEEK_END);
4459         raw_length = ftell(fp);
4460         rewind(fp);
4461         CtdlLogPrintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
4462
4463         raw_message = malloc((size_t)raw_length + 2);
4464         fread(raw_message, (size_t)raw_length, 1, fp);
4465         fclose(fp);
4466
4467         if (is_binary) {
4468                 encoded_message = malloc((size_t)
4469                         (((raw_length * 134) / 100) + 4096 ) );
4470         }
4471         else {
4472                 encoded_message = malloc((size_t)(raw_length + 4096));
4473         }
4474
4475         sprintf(encoded_message, "Content-type: %s\n", content_type);
4476
4477         if (is_binary) {
4478                 sprintf(&encoded_message[strlen(encoded_message)],
4479                         "Content-transfer-encoding: base64\n\n"
4480                 );
4481         }
4482         else {
4483                 sprintf(&encoded_message[strlen(encoded_message)],
4484                         "Content-transfer-encoding: 7bit\n\n"
4485                 );
4486         }
4487
4488         if (is_binary) {
4489                 CtdlEncodeBase64(
4490                         &encoded_message[strlen(encoded_message)],
4491                         raw_message,
4492                         (int)raw_length,
4493                         0
4494                 );
4495         }
4496         else {
4497                 raw_message[raw_length] = 0;
4498                 memcpy(
4499                         &encoded_message[strlen(encoded_message)],
4500                         raw_message,
4501                         (int)(raw_length+1)
4502                 );
4503         }
4504
4505         free(raw_message);
4506
4507         CtdlLogPrintf(CTDL_DEBUG, "Allocating\n");
4508         msg = malloc(sizeof(struct CtdlMessage));
4509         memset(msg, 0, sizeof(struct CtdlMessage));
4510         msg->cm_magic = CTDLMESSAGE_MAGIC;
4511         msg->cm_anon_type = MES_NORMAL;
4512         msg->cm_format_type = 4;
4513         msg->cm_fields['A'] = strdup(CC->user.fullname);
4514         msg->cm_fields['O'] = strdup(req_room);
4515         msg->cm_fields['N'] = strdup(config.c_nodename);
4516         msg->cm_fields['H'] = strdup(config.c_humannode);
4517         msg->cm_flags = flags;
4518         
4519         msg->cm_fields['M'] = encoded_message;
4520
4521         /* Create the requested room if we have to. */
4522         if (getroom(&qrbuf, roomname) != 0) {
4523                 create_room(roomname, 
4524                         ( (is_mailbox != NULL) ? 5 : 3 ),
4525                         "", 0, 1, 0, VIEW_BBS);
4526         }
4527         /* If the caller specified this object as unique, delete all
4528          * other objects of this type that are currently in the room.
4529          */
4530         if (is_unique) {
4531                 CtdlLogPrintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
4532                         CtdlDeleteMessages(roomname, NULL, 0, content_type)
4533                 );
4534         }
4535         /* Now write the data */
4536         CtdlSubmitMsg(msg, NULL, roomname, 0);
4537         CtdlFreeMessage(msg);
4538 }
4539
4540
4541
4542
4543
4544
4545 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
4546         config_msgnum = msgnum;
4547 }
4548
4549
4550 char *CtdlGetSysConfig(char *sysconfname) {
4551         char hold_rm[ROOMNAMELEN];
4552         long msgnum;
4553         char *conf;
4554         struct CtdlMessage *msg;
4555         char buf[SIZ];
4556         
4557         strcpy(hold_rm, CC->room.QRname);
4558         if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
4559                 getroom(&CC->room, hold_rm);
4560                 return NULL;
4561         }
4562
4563
4564         /* We want the last (and probably only) config in this room */
4565         begin_critical_section(S_CONFIG);
4566         config_msgnum = (-1L);
4567         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
4568                 CtdlGetSysConfigBackend, NULL);
4569         msgnum = config_msgnum;
4570         end_critical_section(S_CONFIG);
4571
4572         if (msgnum < 0L) {
4573                 conf = NULL;
4574         }
4575         else {
4576                 msg = CtdlFetchMessage(msgnum, 1);
4577                 if (msg != NULL) {
4578                         conf = strdup(msg->cm_fields['M']);
4579                         CtdlFreeMessage(msg);
4580                 }
4581                 else {
4582                         conf = NULL;
4583                 }
4584         }
4585
4586         getroom(&CC->room, hold_rm);
4587
4588         if (conf != NULL) do {
4589                 extract_token(buf, conf, 0, '\n', sizeof buf);
4590                 strcpy(conf, &conf[strlen(buf)+1]);
4591         } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
4592
4593         return(conf);
4594 }
4595
4596 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
4597         char temp[PATH_MAX];
4598         FILE *fp;
4599
4600         CtdlMakeTempFileName(temp, sizeof temp);
4601
4602         fp = fopen(temp, "w");
4603         if (fp == NULL) return;
4604         fprintf(fp, "%s", sysconfdata);
4605         fclose(fp);
4606
4607         /* this handy API function does all the work for us */
4608         CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
4609         unlink(temp);
4610 }
4611
4612
4613 /*
4614  * Determine whether a given Internet address belongs to the current user
4615  */
4616 int CtdlIsMe(char *addr, int addr_buf_len)
4617 {
4618         struct recptypes *recp;
4619         int i;
4620
4621         recp = validate_recipients(addr, NULL, 0);
4622         if (recp == NULL) return(0);
4623
4624         if (recp->num_local == 0) {
4625                 free_recipients(recp);
4626                 return(0);
4627         }
4628
4629         for (i=0; i<recp->num_local; ++i) {
4630                 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
4631                 if (!strcasecmp(addr, CC->user.fullname)) {
4632                         free_recipients(recp);
4633                         return(1);
4634                 }
4635         }
4636
4637         free_recipients(recp);
4638         return(0);
4639 }
4640
4641
4642 /*
4643  * Citadel protocol command to do the same
4644  */
4645 void cmd_isme(char *argbuf) {
4646         char addr[256];
4647
4648         if (CtdlAccessCheck(ac_logged_in)) return;
4649         extract_token(addr, argbuf, 0, '|', sizeof addr);
4650
4651         if (CtdlIsMe(addr, sizeof addr)) {
4652                 cprintf("%d %s\n", CIT_OK, addr);
4653         }
4654         else {
4655                 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);
4656         }
4657
4658 }