4 * Implements the message store.
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
23 # include <sys/time.h>
38 #include "serv_extensions.h"
42 #include "sysdep_decls.h"
43 #include "citserver.h"
50 #include "mime_parser.h"
53 #include "internet_addressing.h"
54 #include "serv_fulltext.h"
60 * This really belongs in serv_network.c, but I don't know how to export
61 * symbols between modules.
63 struct FilterList *filterlist = NULL;
67 * These are the four-character field headers we use when outputting
68 * messages in Citadel format (as opposed to RFC822 format).
71 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
72 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
73 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
74 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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,
105 * This function is self explanatory.
106 * (What can I say, I'm in a weird mood today...)
108 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
112 for (i = 0; i < strlen(name); ++i) {
113 if (name[i] == '@') {
114 while (isspace(name[i - 1]) && i > 0) {
115 strcpy(&name[i - 1], &name[i]);
118 while (isspace(name[i + 1])) {
119 strcpy(&name[i + 1], &name[i + 2]);
127 * Aliasing for network mail.
128 * (Error messages have been commented out, because this is a server.)
130 int alias(char *name)
131 { /* process alias and routing info for mail */
134 char aaa[SIZ], bbb[SIZ];
135 char *ignetcfg = NULL;
136 char *ignetmap = NULL;
143 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
151 "mail.aliases", "r");
153 fp = fopen("/dev/null", "r");
160 while (fgets(aaa, sizeof aaa, fp) != NULL) {
161 while (isspace(name[0]))
162 strcpy(name, &name[1]);
163 aaa[strlen(aaa) - 1] = 0;
165 for (a = 0; a < strlen(aaa); ++a) {
167 strcpy(bbb, &aaa[a + 1]);
171 if (!strcasecmp(name, aaa))
176 /* Hit the Global Address Book */
177 if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
181 lprintf(CTDL_INFO, "Mail is being forwarded to %s\n", name);
183 /* Change "user @ xxx" to "user" if xxx is an alias for this host */
184 for (a=0; a<strlen(name); ++a) {
185 if (name[a] == '@') {
186 if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
188 lprintf(CTDL_INFO, "Changed to <%s>\n", name);
193 /* determine local or remote type, see citadel.h */
194 at = haschar(name, '@');
195 if (at == 0) return(MES_LOCAL); /* no @'s - local address */
196 if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
197 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
199 /* figure out the delivery mode */
200 extract_token(node, name, 1, '@', sizeof node);
202 /* If there are one or more dots in the nodename, we assume that it
203 * is an FQDN and will attempt SMTP delivery to the Internet.
205 if (haschar(node, '.') > 0) {
206 return(MES_INTERNET);
209 /* Otherwise we look in the IGnet maps for a valid Citadel node.
210 * Try directly-connected nodes first...
212 ignetcfg = CtdlGetSysConfig(IGNETCFG);
213 for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
214 extract_token(buf, ignetcfg, i, '\n', sizeof buf);
215 extract_token(testnode, buf, 0, '|', sizeof testnode);
216 if (!strcasecmp(node, testnode)) {
224 * Then try nodes that are two or more hops away.
226 ignetmap = CtdlGetSysConfig(IGNETMAP);
227 for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
228 extract_token(buf, ignetmap, i, '\n', sizeof buf);
229 extract_token(testnode, buf, 0, '|', sizeof testnode);
230 if (!strcasecmp(node, testnode)) {
237 /* If we get to this point it's an invalid node name */
252 "/citadel.control", "r");
254 lprintf(CTDL_CRIT, "Cannot open citadel.control: %s\n",
258 fread((char *) &CitControl, sizeof(struct CitControl), 1, fp);
264 * Back end for the MSGS command: output message number only.
266 void simple_listing(long msgnum, void *userdata)
268 cprintf("%ld\n", msgnum);
274 * Back end for the MSGS command: output header summary.
276 void headers_listing(long msgnum, void *userdata)
278 struct CtdlMessage *msg;
280 msg = CtdlFetchMessage(msgnum, 0);
282 cprintf("%ld|0|||||\n", msgnum);
286 cprintf("%ld|%s|%s|%s|%s|%s|\n",
288 (msg->cm_fields['T'] ? msg->cm_fields['T'] : "0"),
289 (msg->cm_fields['A'] ? msg->cm_fields['A'] : ""),
290 (msg->cm_fields['N'] ? msg->cm_fields['N'] : ""),
291 (msg->cm_fields['F'] ? msg->cm_fields['F'] : ""),
292 (msg->cm_fields['U'] ? msg->cm_fields['U'] : "")
294 CtdlFreeMessage(msg);
299 /* Determine if a given message matches the fields in a message template.
300 * Return 0 for a successful match.
302 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
305 /* If there aren't any fields in the template, all messages will
308 if (template == NULL) return(0);
310 /* Null messages are bogus. */
311 if (msg == NULL) return(1);
313 for (i='A'; i<='Z'; ++i) {
314 if (template->cm_fields[i] != NULL) {
315 if (msg->cm_fields[i] == NULL) {
318 if (strcasecmp(msg->cm_fields[i],
319 template->cm_fields[i])) return 1;
323 /* All compares succeeded: we have a match! */
330 * Retrieve the "seen" message list for the current room.
332 void CtdlGetSeen(char *buf, int which_set) {
335 /* Learn about the user and room in question */
336 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
338 if (which_set == ctdlsetseen_seen)
339 safestrncpy(buf, vbuf.v_seen, SIZ);
340 if (which_set == ctdlsetseen_answered)
341 safestrncpy(buf, vbuf.v_answered, SIZ);
347 * Manipulate the "seen msgs" string (or other message set strings)
349 void CtdlSetSeen(long target_msgnum, int target_setting, int which_set,
350 struct ctdluser *which_user, struct ctdlroom *which_room) {
351 struct cdbdata *cdbfr;
363 char *is_set; /* actually an array of booleans */
366 char setstr[SIZ], lostr[SIZ], histr[SIZ];
369 lprintf(CTDL_DEBUG, "CtdlSetSeen(%ld, %d, %d)\n",
370 target_msgnum, target_setting, which_set);
372 /* Learn about the user and room in question */
373 CtdlGetRelationship(&vbuf,
374 ((which_user != NULL) ? which_user : &CC->user),
375 ((which_room != NULL) ? which_room : &CC->room)
378 /* Load the message list */
379 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
381 msglist = malloc(cdbfr->len);
382 memcpy(msglist, cdbfr->ptr, cdbfr->len);
383 num_msgs = cdbfr->len / sizeof(long);
386 return; /* No messages at all? No further action. */
389 is_set = malloc(num_msgs * sizeof(char));
390 memset(is_set, 0, (num_msgs * sizeof(char)) );
392 /* Decide which message set we're manipulating */
394 case ctdlsetseen_seen:
395 safestrncpy(vset, vbuf.v_seen, sizeof vset);
397 case ctdlsetseen_answered:
398 safestrncpy(vset, vbuf.v_answered, sizeof vset);
402 /* lprintf(CTDL_DEBUG, "before optimize: %s\n", vset); */
404 /* Translate the existing sequence set into an array of booleans */
405 num_sets = num_tokens(vset, ',');
406 for (s=0; s<num_sets; ++s) {
407 extract_token(setstr, vset, s, ',', sizeof setstr);
409 extract_token(lostr, setstr, 0, ':', sizeof lostr);
410 if (num_tokens(setstr, ':') >= 2) {
411 extract_token(histr, setstr, 1, ':', sizeof histr);
412 if (!strcmp(histr, "*")) {
413 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
417 strcpy(histr, lostr);
422 for (i = 0; i < num_msgs; ++i) {
423 if ((msglist[i] >= lo) && (msglist[i] <= hi)) {
429 /* Now translate the array of booleans back into a sequence set */
434 for (i=0; i<num_msgs; ++i) {
437 if (msglist[i] == target_msgnum) {
438 is_seen = target_setting;
445 if (lo < 0L) lo = msglist[i];
449 if ( ((is_seen == 0) && (was_seen == 1))
450 || ((is_seen == 1) && (i == num_msgs-1)) ) {
452 /* begin trim-o-matic code */
455 while ( (strlen(vset) + 20) > sizeof vset) {
456 remove_token(vset, 0, ',');
458 if (j--) break; /* loop no more than 9 times */
460 if ( (trimming) && (which_set == ctdlsetseen_seen) ) {
464 snprintf(lostr, sizeof lostr,
465 "1:%ld,%s", t, vset);
466 safestrncpy(vset, lostr, sizeof vset);
468 /* end trim-o-matic code */
476 snprintf(&vset[tmp], (sizeof vset) - tmp,
480 snprintf(&vset[tmp], (sizeof vset) - tmp,
489 /* Decide which message set we're manipulating */
491 case ctdlsetseen_seen:
492 safestrncpy(vbuf.v_seen, vset, sizeof vbuf.v_seen);
494 case ctdlsetseen_answered:
495 safestrncpy(vbuf.v_answered, vset,
496 sizeof vbuf.v_answered);
501 /* lprintf(CTDL_DEBUG, " after optimize: %s\n", vset); */
503 CtdlSetRelationship(&vbuf,
504 ((which_user != NULL) ? which_user : &CC->user),
505 ((which_room != NULL) ? which_room : &CC->room)
511 * API function to perform an operation for each qualifying message in the
512 * current room. (Returns the number of messages processed.)
514 int CtdlForEachMessage(int mode, long ref,
516 struct CtdlMessage *compare,
517 void (*CallBack) (long, void *),
523 struct cdbdata *cdbfr;
524 long *msglist = NULL;
526 int num_processed = 0;
529 struct CtdlMessage *msg;
532 int printed_lastold = 0;
534 /* Learn about the user and room in question */
536 getuser(&CC->user, CC->curr_user);
537 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
539 /* Load the message list */
540 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
542 msglist = malloc(cdbfr->len);
543 memcpy(msglist, cdbfr->ptr, cdbfr->len);
544 num_msgs = cdbfr->len / sizeof(long);
547 return 0; /* No messages at all? No further action. */
552 * Now begin the traversal.
554 if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
556 /* If the caller is looking for a specific MIME type, filter
557 * out all messages which are not of the type requested.
559 if (content_type != NULL) if (strlen(content_type) > 0) {
561 /* This call to GetMetaData() sits inside this loop
562 * so that we only do the extra database read per msg
563 * if we need to. Doing the extra read all the time
564 * really kills the server. If we ever need to use
565 * metadata for another search criterion, we need to
566 * move the read somewhere else -- but still be smart
567 * enough to only do the read if the caller has
568 * specified something that will need it.
570 GetMetaData(&smi, msglist[a]);
572 if (strcasecmp(smi.meta_content_type, content_type)) {
578 num_msgs = sort_msglist(msglist, num_msgs);
580 /* If a template was supplied, filter out the messages which
581 * don't match. (This could induce some delays!)
584 if (compare != NULL) {
585 for (a = 0; a < num_msgs; ++a) {
586 msg = CtdlFetchMessage(msglist[a], 1);
588 if (CtdlMsgCmp(msg, compare)) {
591 CtdlFreeMessage(msg);
599 * Now iterate through the message list, according to the
600 * criteria supplied by the caller.
603 for (a = 0; a < num_msgs; ++a) {
604 thismsg = msglist[a];
605 if (mode == MSGS_ALL) {
609 is_seen = is_msg_in_sequence_set(
610 vbuf.v_seen, thismsg);
611 if (is_seen) lastold = thismsg;
617 || ((mode == MSGS_OLD) && (is_seen))
618 || ((mode == MSGS_NEW) && (!is_seen))
619 || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
620 || ((mode == MSGS_FIRST) && (a < ref))
621 || ((mode == MSGS_GT) && (thismsg > ref))
622 || ((mode == MSGS_EQ) && (thismsg == ref))
625 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
627 CallBack(lastold, userdata);
631 if (CallBack) CallBack(thismsg, userdata);
635 free(msglist); /* Clean up */
636 return num_processed;
642 * cmd_msgs() - get list of message #'s in this room
643 * implements the MSGS server command using CtdlForEachMessage()
645 void cmd_msgs(char *cmdbuf)
654 int with_template = 0;
655 struct CtdlMessage *template = NULL;
656 int with_headers = 0;
658 extract_token(which, cmdbuf, 0, '|', sizeof which);
659 cm_ref = extract_int(cmdbuf, 1);
660 with_template = extract_int(cmdbuf, 2);
661 with_headers = extract_int(cmdbuf, 3);
665 if (!strncasecmp(which, "OLD", 3))
667 else if (!strncasecmp(which, "NEW", 3))
669 else if (!strncasecmp(which, "FIRST", 5))
671 else if (!strncasecmp(which, "LAST", 4))
673 else if (!strncasecmp(which, "GT", 2))
676 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
677 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
683 cprintf("%d Send template then receive message list\n",
685 template = (struct CtdlMessage *)
686 malloc(sizeof(struct CtdlMessage));
687 memset(template, 0, sizeof(struct CtdlMessage));
688 while(client_getln(buf, sizeof buf), strcmp(buf,"000")) {
689 extract_token(tfield, buf, 0, '|', sizeof tfield);
690 extract_token(tvalue, buf, 1, '|', sizeof tvalue);
691 for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
692 if (!strcasecmp(tfield, msgkeys[i])) {
693 template->cm_fields[i] =
701 cprintf("%d \n", LISTING_FOLLOWS);
704 CtdlForEachMessage(mode,
708 (with_headers ? headers_listing : simple_listing),
711 if (template != NULL) CtdlFreeMessage(template);
719 * help_subst() - support routine for help file viewer
721 void help_subst(char *strbuf, char *source, char *dest)
726 while (p = pattern2(strbuf, source), (p >= 0)) {
727 strcpy(workbuf, &strbuf[p + strlen(source)]);
728 strcpy(&strbuf[p], dest);
729 strcat(strbuf, workbuf);
734 void do_help_subst(char *buffer)
738 help_subst(buffer, "^nodename", config.c_nodename);
739 help_subst(buffer, "^humannode", config.c_humannode);
740 help_subst(buffer, "^fqdn", config.c_fqdn);
741 help_subst(buffer, "^username", CC->user.fullname);
742 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
743 help_subst(buffer, "^usernum", buf2);
744 help_subst(buffer, "^sysadm", config.c_sysadm);
745 help_subst(buffer, "^variantname", CITADEL);
746 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
747 help_subst(buffer, "^maxsessions", buf2);
748 help_subst(buffer, "^bbsdir", CTDLDIR);
754 * memfmout() - Citadel text formatter and paginator.
755 * Although the original purpose of this routine was to format
756 * text to the reader's screen width, all we're really using it
757 * for here is to format text out to 80 columns before sending it
758 * to the client. The client software may reformat it again.
761 int width, /* screen width to use */
762 char *mptr, /* where are we going to get our text from? */
763 char subst, /* nonzero if we should do substitutions */
764 char *nl) /* string to terminate lines with */
776 c = 1; /* c is the current pos */
780 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
782 buffer[strlen(buffer) + 1] = 0;
783 buffer[strlen(buffer)] = ch;
786 if (buffer[0] == '^')
787 do_help_subst(buffer);
789 buffer[strlen(buffer) + 1] = 0;
791 strcpy(buffer, &buffer[1]);
799 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
801 if (((old == 13) || (old == 10)) && (isspace(real))) {
809 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
810 cprintf("%s%s", nl, aaa);
819 if ((strlen(aaa) + c) > (width - 5)) {
828 if ((ch == 13) || (ch == 10)) {
829 cprintf("%s%s", aaa, nl);
836 cprintf("%s%s", aaa, nl);
842 * Callback function for mime parser that simply lists the part
844 void list_this_part(char *name, char *filename, char *partnum, char *disp,
845 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
849 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
850 name, filename, partnum, disp, cbtype, (long)length);
854 * Callback function for multipart prefix
856 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
857 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
860 cprintf("pref=%s|%s\n", partnum, cbtype);
864 * Callback function for multipart sufffix
866 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
867 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
870 cprintf("suff=%s|%s\n", partnum, cbtype);
875 * Callback function for mime parser that opens a section for downloading
877 void mime_download(char *name, char *filename, char *partnum, char *disp,
878 void *content, char *cbtype, char *cbcharset, size_t length,
879 char *encoding, void *cbuserdata)
882 /* Silently go away if there's already a download open... */
883 if (CC->download_fp != NULL)
886 /* ...or if this is not the desired section */
887 if (strcasecmp(CC->download_desired_section, partnum))
890 CC->download_fp = tmpfile();
891 if (CC->download_fp == NULL)
894 fwrite(content, length, 1, CC->download_fp);
895 fflush(CC->download_fp);
896 rewind(CC->download_fp);
898 OpenCmdResult(filename, cbtype);
904 * Load a message from disk into memory.
905 * This is used by CtdlOutputMsg() and other fetch functions.
907 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
908 * using the CtdlMessageFree() function.
910 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
912 struct cdbdata *dmsgtext;
913 struct CtdlMessage *ret = NULL;
917 cit_uint8_t field_header;
919 lprintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
921 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
922 if (dmsgtext == NULL) {
925 mptr = dmsgtext->ptr;
926 upper_bound = mptr + dmsgtext->len;
928 /* Parse the three bytes that begin EVERY message on disk.
929 * The first is always 0xFF, the on-disk magic number.
930 * The second is the anonymous/public type byte.
931 * The third is the format type byte (vari, fixed, or MIME).
936 "Message %ld appears to be corrupted.\n",
941 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
942 memset(ret, 0, sizeof(struct CtdlMessage));
944 ret->cm_magic = CTDLMESSAGE_MAGIC;
945 ret->cm_anon_type = *mptr++; /* Anon type byte */
946 ret->cm_format_type = *mptr++; /* Format type byte */
949 * The rest is zero or more arbitrary fields. Load them in.
950 * We're done when we encounter either a zero-length field or
951 * have just processed the 'M' (message text) field.
954 if (mptr >= upper_bound) {
957 field_header = *mptr++;
958 ret->cm_fields[field_header] = strdup(mptr);
960 while (*mptr++ != 0); /* advance to next field */
962 } while ((mptr < upper_bound) && (field_header != 'M'));
966 /* Always make sure there's something in the msg text field. If
967 * it's NULL, the message text is most likely stored separately,
968 * so go ahead and fetch that. Failing that, just set a dummy
969 * body so other code doesn't barf.
971 if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
972 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
973 if (dmsgtext != NULL) {
974 ret->cm_fields['M'] = strdup(dmsgtext->ptr);
978 if (ret->cm_fields['M'] == NULL) {
979 ret->cm_fields['M'] = strdup("<no text>\n");
982 /* Perform "before read" hooks (aborting if any return nonzero) */
983 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
984 CtdlFreeMessage(ret);
993 * Returns 1 if the supplied pointer points to a valid Citadel message.
994 * If the pointer is NULL or the magic number check fails, returns 0.
996 int is_valid_message(struct CtdlMessage *msg) {
999 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
1000 lprintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
1008 * 'Destructor' for struct CtdlMessage
1010 void CtdlFreeMessage(struct CtdlMessage *msg)
1014 if (is_valid_message(msg) == 0) return;
1016 for (i = 0; i < 256; ++i)
1017 if (msg->cm_fields[i] != NULL) {
1018 free(msg->cm_fields[i]);
1021 msg->cm_magic = 0; /* just in case */
1027 * Pre callback function for multipart/alternative
1029 * NOTE: this differs from the standard behavior for a reason. Normally when
1030 * displaying multipart/alternative you want to show the _last_ usable
1031 * format in the message. Here we show the _first_ one, because it's
1032 * usually text/plain. Since this set of functions is designed for text
1033 * output to non-MIME-aware clients, this is the desired behavior.
1036 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
1037 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1042 ma = (struct ma_info *)cbuserdata;
1043 lprintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
1044 if (!strcasecmp(cbtype, "multipart/alternative")) {
1052 * Post callback function for multipart/alternative
1054 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
1055 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1060 ma = (struct ma_info *)cbuserdata;
1061 lprintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
1062 if (!strcasecmp(cbtype, "multipart/alternative")) {
1070 * Inline callback function for mime parser that wants to display text
1072 void fixed_output(char *name, char *filename, char *partnum, char *disp,
1073 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1081 ma = (struct ma_info *)cbuserdata;
1083 lprintf(CTDL_DEBUG, "fixed_output() type=<%s>\n", cbtype);
1086 * If we're in the middle of a multipart/alternative scope and
1087 * we've already printed another section, skip this one.
1089 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
1090 lprintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
1095 if ( (!strcasecmp(cbtype, "text/plain"))
1096 || (strlen(cbtype)==0) ) {
1099 client_write(wptr, length);
1100 if (wptr[length-1] != '\n') {
1105 else if (!strcasecmp(cbtype, "text/html")) {
1106 ptr = html_to_ascii(content, 80, 0);
1108 client_write(ptr, wlen);
1109 if (ptr[wlen-1] != '\n') {
1114 else if (strncasecmp(cbtype, "multipart/", 10)) {
1115 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
1116 partnum, filename, cbtype, (long)length);
1121 * The client is elegant and sophisticated and wants to be choosy about
1122 * MIME content types, so figure out which multipart/alternative part
1123 * we're going to send.
1125 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1126 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1133 ma = (struct ma_info *)cbuserdata;
1135 if (ma->is_ma > 0) {
1136 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1137 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1138 if (!strcasecmp(buf, cbtype)) {
1139 strcpy(ma->chosen_part, partnum);
1146 * Now that we've chosen our preferred part, output it.
1148 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1149 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1154 int add_newline = 0;
1158 ma = (struct ma_info *)cbuserdata;
1160 /* This is not the MIME part you're looking for... */
1161 if (strcasecmp(partnum, ma->chosen_part)) return;
1163 /* If the content-type of this part is in our preferred formats
1164 * list, we can simply output it verbatim.
1166 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1167 extract_token(buf, CC->preferred_formats, i, '|', sizeof buf);
1168 if (!strcasecmp(buf, cbtype)) {
1169 /* Yeah! Go! W00t!! */
1171 text_content = (char *)content;
1172 if (text_content[length-1] != '\n') {
1176 cprintf("Content-type: %s", cbtype);
1177 if (strlen(cbcharset) > 0) {
1178 cprintf("; charset=%s", cbcharset);
1180 cprintf("\nContent-length: %d\n",
1181 (int)(length + add_newline) );
1182 if (strlen(encoding) > 0) {
1183 cprintf("Content-transfer-encoding: %s\n", encoding);
1186 cprintf("Content-transfer-encoding: 7bit\n");
1189 client_write(content, length);
1190 if (add_newline) cprintf("\n");
1195 /* No translations required or possible: output as text/plain */
1196 cprintf("Content-type: text/plain\n\n");
1197 fixed_output(name, filename, partnum, disp, content, cbtype, cbcharset,
1198 length, encoding, cbuserdata);
1203 * Get a message off disk. (returns om_* values found in msgbase.h)
1206 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1207 int mode, /* how would you like that message? */
1208 int headers_only, /* eschew the message body? */
1209 int do_proto, /* do Citadel protocol responses? */
1210 int crlf /* Use CRLF newlines instead of LF? */
1212 struct CtdlMessage *TheMessage = NULL;
1213 int retcode = om_no_such_msg;
1215 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1218 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1219 if (do_proto) cprintf("%d Not logged in.\n",
1220 ERROR + NOT_LOGGED_IN);
1221 return(om_not_logged_in);
1224 /* FIXME: check message id against msglist for this room */
1227 * Fetch the message from disk. If we're in any sort of headers
1228 * only mode, request that we don't even bother loading the body
1231 if ( (headers_only == HEADERS_FAST) || (headers_only == HEADERS_ONLY) ) {
1232 TheMessage = CtdlFetchMessage(msg_num, 0);
1235 TheMessage = CtdlFetchMessage(msg_num, 1);
1238 if (TheMessage == NULL) {
1239 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1240 ERROR + MESSAGE_NOT_FOUND, msg_num);
1241 return(om_no_such_msg);
1244 retcode = CtdlOutputPreLoadedMsg(
1245 TheMessage, msg_num, mode,
1246 headers_only, do_proto, crlf);
1248 CtdlFreeMessage(TheMessage);
1255 * Get a message off disk. (returns om_* values found in msgbase.h)
1258 int CtdlOutputPreLoadedMsg(
1259 struct CtdlMessage *TheMessage,
1261 int mode, /* how would you like that message? */
1262 int headers_only, /* eschew the message body? */
1263 int do_proto, /* do Citadel protocol responses? */
1264 int crlf /* Use CRLF newlines instead of LF? */
1270 char display_name[256];
1272 char *nl; /* newline string */
1274 int subject_found = 0;
1277 /* Buffers needed for RFC822 translation. These are all filled
1278 * using functions that are bounds-checked, and therefore we can
1279 * make them substantially smaller than SIZ.
1287 char datestamp[100];
1289 lprintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %ld, %d, %d, %d, %d\n",
1290 ((TheMessage == NULL) ? "NULL" : "not null"),
1292 mode, headers_only, do_proto, crlf);
1294 snprintf(mid, sizeof mid, "%ld", msg_num);
1295 nl = (crlf ? "\r\n" : "\n");
1297 if (!is_valid_message(TheMessage)) {
1299 "ERROR: invalid preloaded message for output\n");
1300 return(om_no_such_msg);
1303 /* Are we downloading a MIME component? */
1304 if (mode == MT_DOWNLOAD) {
1305 if (TheMessage->cm_format_type != FMT_RFC822) {
1307 cprintf("%d This is not a MIME message.\n",
1308 ERROR + ILLEGAL_VALUE);
1309 } else if (CC->download_fp != NULL) {
1310 if (do_proto) cprintf(
1311 "%d You already have a download open.\n",
1312 ERROR + RESOURCE_BUSY);
1314 /* Parse the message text component */
1315 mptr = TheMessage->cm_fields['M'];
1316 ma = malloc(sizeof(struct ma_info));
1317 memset(ma, 0, sizeof(struct ma_info));
1318 mime_parser(mptr, NULL, *mime_download, NULL, NULL, (void *)ma, 0);
1320 /* If there's no file open by this time, the requested
1321 * section wasn't found, so print an error
1323 if (CC->download_fp == NULL) {
1324 if (do_proto) cprintf(
1325 "%d Section %s not found.\n",
1326 ERROR + FILE_NOT_FOUND,
1327 CC->download_desired_section);
1330 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1333 /* now for the user-mode message reading loops */
1334 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1336 /* Does the caller want to skip the headers? */
1337 if (headers_only == HEADERS_NONE) goto START_TEXT;
1339 /* Tell the client which format type we're using. */
1340 if ( (mode == MT_CITADEL) && (do_proto) ) {
1341 cprintf("type=%d\n", TheMessage->cm_format_type);
1344 /* nhdr=yes means that we're only displaying headers, no body */
1345 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1346 && (mode == MT_CITADEL)
1349 cprintf("nhdr=yes\n");
1352 /* begin header processing loop for Citadel message format */
1354 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1356 safestrncpy(display_name, "<unknown>", sizeof display_name);
1357 if (TheMessage->cm_fields['A']) {
1358 strcpy(buf, TheMessage->cm_fields['A']);
1359 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1360 safestrncpy(display_name, "****", sizeof display_name);
1362 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1363 safestrncpy(display_name, "anonymous", sizeof display_name);
1366 safestrncpy(display_name, buf, sizeof display_name);
1368 if ((is_room_aide())
1369 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1370 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1371 size_t tmp = strlen(display_name);
1372 snprintf(&display_name[tmp],
1373 sizeof display_name - tmp,
1378 /* Don't show Internet address for users on the
1379 * local Citadel network.
1382 if (TheMessage->cm_fields['N'] != NULL)
1383 if (strlen(TheMessage->cm_fields['N']) > 0)
1384 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1388 /* Now spew the header fields in the order we like them. */
1389 safestrncpy(allkeys, FORDER, sizeof allkeys);
1390 for (i=0; i<strlen(allkeys); ++i) {
1391 k = (int) allkeys[i];
1393 if ( (TheMessage->cm_fields[k] != NULL)
1394 && (msgkeys[k] != NULL) ) {
1396 if (do_proto) cprintf("%s=%s\n",
1400 else if ((k == 'F') && (suppress_f)) {
1403 /* Masquerade display name if needed */
1405 if (do_proto) cprintf("%s=%s\n",
1407 TheMessage->cm_fields[k]
1416 /* begin header processing loop for RFC822 transfer format */
1421 strcpy(snode, NODENAME);
1422 strcpy(lnode, HUMANNODE);
1423 if (mode == MT_RFC822) {
1424 for (i = 0; i < 256; ++i) {
1425 if (TheMessage->cm_fields[i]) {
1426 mptr = TheMessage->cm_fields[i];
1429 safestrncpy(luser, mptr, sizeof luser);
1430 safestrncpy(suser, mptr, sizeof suser);
1432 else if (i == 'U') {
1433 cprintf("Subject: %s%s", mptr, nl);
1437 safestrncpy(mid, mptr, sizeof mid);
1439 safestrncpy(lnode, mptr, sizeof lnode);
1441 safestrncpy(fuser, mptr, sizeof fuser);
1442 /* else if (i == 'O')
1443 cprintf("X-Citadel-Room: %s%s",
1446 safestrncpy(snode, mptr, sizeof snode);
1448 cprintf("To: %s%s", mptr, nl);
1449 else if (i == 'T') {
1450 datestring(datestamp, sizeof datestamp,
1451 atol(mptr), DATESTRING_RFC822);
1452 cprintf("Date: %s%s", datestamp, nl);
1456 if (subject_found == 0) {
1457 cprintf("Subject: (no subject)%s", nl);
1461 for (i=0; i<strlen(suser); ++i) {
1462 suser[i] = tolower(suser[i]);
1463 if (!isalnum(suser[i])) suser[i]='_';
1466 if (mode == MT_RFC822) {
1467 if (!strcasecmp(snode, NODENAME)) {
1468 safestrncpy(snode, FQDN, sizeof snode);
1471 /* Construct a fun message id */
1472 cprintf("Message-ID: <%s", mid);
1473 if (strchr(mid, '@')==NULL) {
1474 cprintf("@%s", snode);
1478 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1479 // cprintf("From: x@x.org (----)%s", nl);
1480 cprintf("From: \"----\" <x@x.org>%s", nl);
1482 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1483 // cprintf("From: x@x.org (anonymous)%s", nl);
1484 cprintf("From: \"anonymous\" <x@x.org>%s", nl);
1486 else if (strlen(fuser) > 0) {
1487 // cprintf("From: %s (%s)%s", fuser, luser, nl);
1488 cprintf("From: \"%s\" <%s>%s", luser, fuser, nl);
1491 // cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1492 cprintf("From: \"%s\" <%s@%s>%s", luser, suser, snode, nl);
1495 cprintf("Organization: %s%s", lnode, nl);
1497 /* Blank line signifying RFC822 end-of-headers */
1498 if (TheMessage->cm_format_type != FMT_RFC822) {
1503 /* end header processing loop ... at this point, we're in the text */
1505 if (headers_only == HEADERS_FAST) goto DONE;
1506 mptr = TheMessage->cm_fields['M'];
1508 /* Tell the client about the MIME parts in this message */
1509 if (TheMessage->cm_format_type == FMT_RFC822) {
1510 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1511 mime_parser(mptr, NULL,
1512 (do_proto ? *list_this_part : NULL),
1513 (do_proto ? *list_this_pref : NULL),
1514 (do_proto ? *list_this_suff : NULL),
1517 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1518 /* FIXME ... we have to put some code in here to avoid
1519 * printing duplicate header information when both
1520 * Citadel and RFC822 headers exist. Preference should
1521 * probably be given to the RFC822 headers.
1523 int done_rfc822_hdrs = 0;
1524 while (ch=*(mptr++), ch!=0) {
1529 if (!done_rfc822_hdrs) {
1530 if (headers_only != HEADERS_NONE) {
1535 if (headers_only != HEADERS_ONLY) {
1539 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1540 done_rfc822_hdrs = 1;
1544 if (done_rfc822_hdrs) {
1545 if (headers_only != HEADERS_NONE) {
1550 if (headers_only != HEADERS_ONLY) {
1554 if ((*mptr == 13) || (*mptr == 10)) {
1555 done_rfc822_hdrs = 1;
1563 if (headers_only == HEADERS_ONLY) {
1567 /* signify start of msg text */
1568 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1569 if (do_proto) cprintf("text\n");
1572 /* If the format type on disk is 1 (fixed-format), then we want
1573 * everything to be output completely literally ... regardless of
1574 * what message transfer format is in use.
1576 if (TheMessage->cm_format_type == FMT_FIXED) {
1577 if (mode == MT_MIME) {
1578 cprintf("Content-type: text/plain\n\n");
1581 while (ch = *mptr++, ch > 0) {
1584 if ((ch == 10) || (strlen(buf) > 250)) {
1585 cprintf("%s%s", buf, nl);
1588 buf[strlen(buf) + 1] = 0;
1589 buf[strlen(buf)] = ch;
1592 if (strlen(buf) > 0)
1593 cprintf("%s%s", buf, nl);
1596 /* If the message on disk is format 0 (Citadel vari-format), we
1597 * output using the formatter at 80 columns. This is the final output
1598 * form if the transfer format is RFC822, but if the transfer format
1599 * is Citadel proprietary, it'll still work, because the indentation
1600 * for new paragraphs is correct and the client will reformat the
1601 * message to the reader's screen width.
1603 if (TheMessage->cm_format_type == FMT_CITADEL) {
1604 if (mode == MT_MIME) {
1605 cprintf("Content-type: text/x-citadel-variformat\n\n");
1607 memfmout(80, mptr, 0, nl);
1610 /* If the message on disk is format 4 (MIME), we've gotta hand it
1611 * off to the MIME parser. The client has already been told that
1612 * this message is format 1 (fixed format), so the callback function
1613 * we use will display those parts as-is.
1615 if (TheMessage->cm_format_type == FMT_RFC822) {
1616 ma = malloc(sizeof(struct ma_info));
1617 memset(ma, 0, sizeof(struct ma_info));
1619 if (mode == MT_MIME) {
1620 strcpy(ma->chosen_part, "1");
1621 mime_parser(mptr, NULL,
1622 *choose_preferred, *fixed_output_pre,
1623 *fixed_output_post, (void *)ma, 0);
1624 mime_parser(mptr, NULL,
1625 *output_preferred, NULL, NULL, (void *)ma, 0);
1628 mime_parser(mptr, NULL,
1629 *fixed_output, *fixed_output_pre,
1630 *fixed_output_post, (void *)ma, 0);
1636 DONE: /* now we're done */
1637 if (do_proto) cprintf("000\n");
1644 * display a message (mode 0 - Citadel proprietary)
1646 void cmd_msg0(char *cmdbuf)
1649 int headers_only = HEADERS_ALL;
1651 msgid = extract_long(cmdbuf, 0);
1652 headers_only = extract_int(cmdbuf, 1);
1654 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1660 * display a message (mode 2 - RFC822)
1662 void cmd_msg2(char *cmdbuf)
1665 int headers_only = HEADERS_ALL;
1667 msgid = extract_long(cmdbuf, 0);
1668 headers_only = extract_int(cmdbuf, 1);
1670 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1676 * display a message (mode 3 - IGnet raw format - internal programs only)
1678 void cmd_msg3(char *cmdbuf)
1681 struct CtdlMessage *msg;
1684 if (CC->internal_pgm == 0) {
1685 cprintf("%d This command is for internal programs only.\n",
1686 ERROR + HIGHER_ACCESS_REQUIRED);
1690 msgnum = extract_long(cmdbuf, 0);
1691 msg = CtdlFetchMessage(msgnum, 1);
1693 cprintf("%d Message %ld not found.\n",
1694 ERROR + MESSAGE_NOT_FOUND, msgnum);
1698 serialize_message(&smr, msg);
1699 CtdlFreeMessage(msg);
1702 cprintf("%d Unable to serialize message\n",
1703 ERROR + INTERNAL_ERROR);
1707 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1708 client_write((char *)smr.ser, (int)smr.len);
1715 * Display a message using MIME content types
1717 void cmd_msg4(char *cmdbuf)
1721 msgid = extract_long(cmdbuf, 0);
1722 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1728 * Client tells us its preferred message format(s)
1730 void cmd_msgp(char *cmdbuf)
1732 safestrncpy(CC->preferred_formats, cmdbuf,
1733 sizeof(CC->preferred_formats));
1734 cprintf("%d ok\n", CIT_OK);
1739 * Open a component of a MIME message as a download file
1741 void cmd_opna(char *cmdbuf)
1744 char desired_section[128];
1746 msgid = extract_long(cmdbuf, 0);
1747 extract_token(desired_section, cmdbuf, 1, '|', sizeof desired_section);
1748 safestrncpy(CC->download_desired_section, desired_section, sizeof CC->download_desired_section);
1749 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1754 * Save a message pointer into a specified room
1755 * (Returns 0 for success, nonzero for failure)
1756 * roomname may be NULL to use the current room
1758 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1760 char hold_rm[ROOMNAMELEN];
1761 struct cdbdata *cdbfr;
1764 long highest_msg = 0L;
1765 struct CtdlMessage *msg = NULL;
1767 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1768 roomname, msgid, flags);
1770 strcpy(hold_rm, CC->room.QRname);
1772 /* We may need to check to see if this message is real */
1773 if ( (flags & SM_VERIFY_GOODNESS)
1774 || (flags & SM_DO_REPL_CHECK)
1776 msg = CtdlFetchMessage(msgid, 1);
1777 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1780 /* Perform replication checks if necessary */
1781 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1783 if (getroom(&CC->room,
1784 ((roomname != NULL) ? roomname : CC->room.QRname) )
1786 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1787 if (msg != NULL) CtdlFreeMessage(msg);
1788 return(ERROR + ROOM_NOT_FOUND);
1791 if (ReplicationChecks(msg) != 0) {
1792 getroom(&CC->room, hold_rm);
1793 if (msg != NULL) CtdlFreeMessage(msg);
1795 "Did replication, and newer exists\n");
1800 /* Now the regular stuff */
1801 if (lgetroom(&CC->room,
1802 ((roomname != NULL) ? roomname : CC->room.QRname) )
1804 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1805 if (msg != NULL) CtdlFreeMessage(msg);
1806 return(ERROR + ROOM_NOT_FOUND);
1809 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1810 if (cdbfr == NULL) {
1814 msglist = malloc(cdbfr->len);
1815 if (msglist == NULL)
1816 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1817 num_msgs = cdbfr->len / sizeof(long);
1818 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1823 /* Make sure the message doesn't already exist in this room. It
1824 * is absolutely taboo to have more than one reference to the same
1825 * message in a room.
1827 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1828 if (msglist[i] == msgid) {
1829 lputroom(&CC->room); /* unlock the room */
1830 getroom(&CC->room, hold_rm);
1831 if (msg != NULL) CtdlFreeMessage(msg);
1833 return(ERROR + ALREADY_EXISTS);
1837 /* Now add the new message */
1839 msglist = realloc(msglist, (num_msgs * sizeof(long)));
1841 if (msglist == NULL) {
1842 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1844 msglist[num_msgs - 1] = msgid;
1846 /* Sort the message list, so all the msgid's are in order */
1847 num_msgs = sort_msglist(msglist, num_msgs);
1849 /* Determine the highest message number */
1850 highest_msg = msglist[num_msgs - 1];
1852 /* Write it back to disk. */
1853 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
1854 msglist, (int)(num_msgs * sizeof(long)));
1856 /* Free up the memory we used. */
1859 /* Update the highest-message pointer and unlock the room. */
1860 CC->room.QRhighest = highest_msg;
1861 lputroom(&CC->room);
1862 getroom(&CC->room, hold_rm);
1864 /* Bump the reference count for this message. */
1865 if ((flags & SM_DONT_BUMP_REF)==0) {
1866 AdjRefCount(msgid, +1);
1869 /* Return success. */
1870 if (msg != NULL) CtdlFreeMessage(msg);
1877 * Message base operation to save a new message to the message store
1878 * (returns new message number)
1880 * This is the back end for CtdlSubmitMsg() and should not be directly
1881 * called by server-side modules.
1884 long send_message(struct CtdlMessage *msg) {
1892 /* Get a new message number */
1893 newmsgid = get_new_message_number();
1894 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1896 /* Generate an ID if we don't have one already */
1897 if (msg->cm_fields['I']==NULL) {
1898 msg->cm_fields['I'] = strdup(msgidbuf);
1901 /* If the message is big, set its body aside for storage elsewhere */
1902 if (msg->cm_fields['M'] != NULL) {
1903 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1905 holdM = msg->cm_fields['M'];
1906 msg->cm_fields['M'] = NULL;
1910 /* Serialize our data structure for storage in the database */
1911 serialize_message(&smr, msg);
1914 msg->cm_fields['M'] = holdM;
1918 cprintf("%d Unable to serialize message\n",
1919 ERROR + INTERNAL_ERROR);
1923 /* Write our little bundle of joy into the message base */
1924 if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
1925 smr.ser, smr.len) < 0) {
1926 lprintf(CTDL_ERR, "Can't store message\n");
1930 cdb_store(CDB_BIGMSGS,
1940 /* Free the memory we used for the serialized message */
1943 /* Return the *local* message ID to the caller
1944 * (even if we're storing an incoming network message)
1952 * Serialize a struct CtdlMessage into the format used on disk and network.
1954 * This function loads up a "struct ser_ret" (defined in server.h) which
1955 * contains the length of the serialized message and a pointer to the
1956 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1958 void serialize_message(struct ser_ret *ret, /* return values */
1959 struct CtdlMessage *msg) /* unserialized msg */
1963 static char *forder = FORDER;
1965 if (is_valid_message(msg) == 0) return; /* self check */
1968 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1969 ret->len = ret->len +
1970 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1972 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1973 ret->ser = malloc(ret->len);
1974 if (ret->ser == NULL) {
1980 ret->ser[1] = msg->cm_anon_type;
1981 ret->ser[2] = msg->cm_format_type;
1984 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1985 ret->ser[wlen++] = (char)forder[i];
1986 strcpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1987 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1989 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1990 (long)ret->len, (long)wlen);
1998 * Back end for the ReplicationChecks() function
2000 void check_repl(long msgnum, void *userdata) {
2001 lprintf(CTDL_DEBUG, "check_repl() replacing message %ld\n", msgnum);
2002 CtdlDeleteMessages(CC->room.QRname, msgnum, "", 0);
2007 * Check to see if any messages already exist which carry the same Exclusive ID
2008 * as this one. If any are found, delete them.
2011 int ReplicationChecks(struct CtdlMessage *msg) {
2012 struct CtdlMessage *template;
2015 /* No exclusive id? Don't do anything. */
2016 if (msg->cm_fields['E'] == NULL) return 0;
2017 if (strlen(msg->cm_fields['E']) == 0) return 0;
2018 lprintf(CTDL_DEBUG, "Exclusive ID: <%s>\n", msg->cm_fields['E']);
2020 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
2021 memset(template, 0, sizeof(struct CtdlMessage));
2022 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
2024 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
2026 CtdlFreeMessage(template);
2027 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
2035 * Save a message to disk and submit it into the delivery system.
2037 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
2038 struct recptypes *recps, /* recipients (if mail) */
2039 char *force /* force a particular room? */
2041 char submit_filename[128];
2042 char generated_timestamp[32];
2043 char hold_rm[ROOMNAMELEN];
2044 char actual_rm[ROOMNAMELEN];
2045 char force_room[ROOMNAMELEN];
2046 char content_type[SIZ]; /* We have to learn this */
2047 char recipient[SIZ];
2050 struct ctdluser userbuf;
2052 struct MetaData smi;
2053 FILE *network_fp = NULL;
2054 static int seqnum = 1;
2055 struct CtdlMessage *imsg = NULL;
2058 char *hold_R, *hold_D;
2060 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
2061 if (is_valid_message(msg) == 0) return(-1); /* self check */
2063 /* If this message has no timestamp, we take the liberty of
2064 * giving it one, right now.
2066 if (msg->cm_fields['T'] == NULL) {
2067 lprintf(CTDL_DEBUG, "Generating timestamp\n");
2068 snprintf(generated_timestamp, sizeof generated_timestamp, "%ld", (long)time(NULL));
2069 msg->cm_fields['T'] = strdup(generated_timestamp);
2072 /* If this message has no path, we generate one.
2074 if (msg->cm_fields['P'] == NULL) {
2075 lprintf(CTDL_DEBUG, "Generating path\n");
2076 if (msg->cm_fields['A'] != NULL) {
2077 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
2078 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
2079 if (isspace(msg->cm_fields['P'][a])) {
2080 msg->cm_fields['P'][a] = ' ';
2085 msg->cm_fields['P'] = strdup("unknown");
2089 if (force == NULL) {
2090 strcpy(force_room, "");
2093 strcpy(force_room, force);
2096 /* Learn about what's inside, because it's what's inside that counts */
2097 lprintf(CTDL_DEBUG, "Learning what's inside\n");
2098 if (msg->cm_fields['M'] == NULL) {
2099 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2103 switch (msg->cm_format_type) {
2105 strcpy(content_type, "text/x-citadel-variformat");
2108 strcpy(content_type, "text/plain");
2111 strcpy(content_type, "text/plain");
2112 mptr = bmstrcasestr(msg->cm_fields['M'], "Content-type: ");
2114 safestrncpy(content_type, &mptr[14],
2115 sizeof content_type);
2116 for (a = 0; a < strlen(content_type); ++a) {
2117 if ((content_type[a] == ';')
2118 || (content_type[a] == ' ')
2119 || (content_type[a] == 13)
2120 || (content_type[a] == 10)) {
2121 content_type[a] = 0;
2127 /* Goto the correct room */
2128 lprintf(CTDL_DEBUG, "Selected room %s\n",
2129 (recps) ? CC->room.QRname : SENTITEMS);
2130 strcpy(hold_rm, CC->room.QRname);
2131 strcpy(actual_rm, CC->room.QRname);
2132 if (recps != NULL) {
2133 strcpy(actual_rm, SENTITEMS);
2136 /* If the user is a twit, move to the twit room for posting */
2137 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2138 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2140 if (CC->user.axlevel == 2) {
2141 strcpy(hold_rm, actual_rm);
2142 strcpy(actual_rm, config.c_twitroom);
2146 /* ...or if this message is destined for Aide> then go there. */
2147 if (strlen(force_room) > 0) {
2148 strcpy(actual_rm, force_room);
2151 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2152 if (strcasecmp(actual_rm, CC->room.QRname)) {
2153 /* getroom(&CC->room, actual_rm); */
2154 usergoto(actual_rm, 0, 1, NULL, NULL);
2158 * If this message has no O (room) field, generate one.
2160 if (msg->cm_fields['O'] == NULL) {
2161 msg->cm_fields['O'] = strdup(CC->room.QRname);
2164 /* Perform "before save" hooks (aborting if any return nonzero) */
2165 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2166 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2168 /* If this message has an Exclusive ID, perform replication checks */
2169 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2170 if (ReplicationChecks(msg) > 0) return(-4);
2172 /* Save it to disk */
2173 lprintf(CTDL_DEBUG, "Saving to disk\n");
2174 newmsgid = send_message(msg);
2175 if (newmsgid <= 0L) return(-5);
2177 /* Write a supplemental message info record. This doesn't have to
2178 * be a critical section because nobody else knows about this message
2181 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2182 memset(&smi, 0, sizeof(struct MetaData));
2183 smi.meta_msgnum = newmsgid;
2184 smi.meta_refcount = 0;
2185 safestrncpy(smi.meta_content_type, content_type,
2186 sizeof smi.meta_content_type);
2188 /* As part of the new metadata record, measure how
2189 * big this message will be when displayed as RFC822.
2190 * Both POP and IMAP use this, and it's best to just take the hit now
2191 * instead of having to potentially measure thousands of messages when
2192 * a mailbox is opened later.
2195 if (CC->redirect_buffer != NULL) {
2196 lprintf(CTDL_ALERT, "CC->redirect_buffer is not NULL during message submission!\n");
2199 CC->redirect_buffer = malloc(SIZ);
2200 CC->redirect_len = 0;
2201 CC->redirect_alloc = SIZ;
2202 CtdlOutputPreLoadedMsg(msg, 0L, MT_RFC822, HEADERS_ALL, 0, 1);
2203 smi.meta_rfc822_length = CC->redirect_len;
2204 free(CC->redirect_buffer);
2205 CC->redirect_buffer = NULL;
2206 CC->redirect_len = 0;
2207 CC->redirect_alloc = 0;
2211 /* Now figure out where to store the pointers */
2212 lprintf(CTDL_DEBUG, "Storing pointers\n");
2214 /* If this is being done by the networker delivering a private
2215 * message, we want to BYPASS saving the sender's copy (because there
2216 * is no local sender; it would otherwise go to the Trashcan).
2218 if ((!CC->internal_pgm) || (recps == NULL)) {
2219 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2220 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2221 CtdlSaveMsgPointerInRoom(config.c_aideroom,
2226 /* For internet mail, drop a copy in the outbound queue room */
2228 if (recps->num_internet > 0) {
2229 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2232 /* If other rooms are specified, drop them there too. */
2234 if (recps->num_room > 0)
2235 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2236 extract_token(recipient, recps->recp_room, i,
2237 '|', sizeof recipient);
2238 lprintf(CTDL_DEBUG, "Delivering to room <%s>\n", recipient);
2239 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2242 /* Bump this user's messages posted counter. */
2243 lprintf(CTDL_DEBUG, "Updating user\n");
2244 lgetuser(&CC->user, CC->curr_user);
2245 CC->user.posted = CC->user.posted + 1;
2246 lputuser(&CC->user);
2248 /* If this is private, local mail, make a copy in the
2249 * recipient's mailbox and bump the reference count.
2252 if (recps->num_local > 0)
2253 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2254 extract_token(recipient, recps->recp_local, i,
2255 '|', sizeof recipient);
2256 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2258 if (getuser(&userbuf, recipient) == 0) {
2259 MailboxName(actual_rm, sizeof actual_rm,
2260 &userbuf, MAILROOM);
2261 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2262 BumpNewMailCounter(userbuf.usernum);
2265 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2266 CtdlSaveMsgPointerInRoom(config.c_aideroom,
2271 /* Perform "after save" hooks */
2272 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2273 PerformMessageHooks(msg, EVT_AFTERSAVE);
2275 /* For IGnet mail, we have to save a new copy into the spooler for
2276 * each recipient, with the R and D fields set to the recipient and
2277 * destination-node. This has two ugly side effects: all other
2278 * recipients end up being unlisted in this recipient's copy of the
2279 * message, and it has to deliver multiple messages to the same
2280 * node. We'll revisit this again in a year or so when everyone has
2281 * a network spool receiver that can handle the new style messages.
2284 if (recps->num_ignet > 0)
2285 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2286 extract_token(recipient, recps->recp_ignet, i,
2287 '|', sizeof recipient);
2289 hold_R = msg->cm_fields['R'];
2290 hold_D = msg->cm_fields['D'];
2291 msg->cm_fields['R'] = malloc(SIZ);
2292 msg->cm_fields['D'] = malloc(128);
2293 extract_token(msg->cm_fields['R'], recipient, 0, '@', SIZ);
2294 extract_token(msg->cm_fields['D'], recipient, 1, '@', 128);
2296 serialize_message(&smr, msg);
2298 snprintf(submit_filename, sizeof submit_filename,
2299 #ifndef HAVE_SPOOL_DIR
2304 "/network/spoolin/netmail.%04lx.%04x.%04x",
2305 (long) getpid(), CC->cs_pid, ++seqnum);
2306 network_fp = fopen(submit_filename, "wb+");
2307 if (network_fp != NULL) {
2308 fwrite(smr.ser, smr.len, 1, network_fp);
2314 free(msg->cm_fields['R']);
2315 free(msg->cm_fields['D']);
2316 msg->cm_fields['R'] = hold_R;
2317 msg->cm_fields['D'] = hold_D;
2320 /* Go back to the room we started from */
2321 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2322 if (strcasecmp(hold_rm, CC->room.QRname))
2323 /* getroom(&CC->room, hold_rm); */
2324 usergoto(hold_rm, 0, 1, NULL, NULL);
2326 /* For internet mail, generate delivery instructions.
2327 * Yes, this is recursive. Deal with it. Infinite recursion does
2328 * not happen because the delivery instructions message does not
2329 * contain a recipient.
2332 if (recps->num_internet > 0) {
2333 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2334 instr = malloc(SIZ * 2);
2335 snprintf(instr, SIZ * 2,
2336 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2338 SPOOLMIME, newmsgid, (long)time(NULL),
2339 msg->cm_fields['A'], msg->cm_fields['N']
2342 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2343 size_t tmp = strlen(instr);
2344 extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
2345 snprintf(&instr[tmp], SIZ * 2 - tmp,
2346 "remote|%s|0||\n", recipient);
2349 imsg = malloc(sizeof(struct CtdlMessage));
2350 memset(imsg, 0, sizeof(struct CtdlMessage));
2351 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2352 imsg->cm_anon_type = MES_NORMAL;
2353 imsg->cm_format_type = FMT_RFC822;
2354 imsg->cm_fields['A'] = strdup("Citadel");
2355 imsg->cm_fields['M'] = instr;
2356 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2357 CtdlFreeMessage(imsg);
2366 * Convenience function for generating small administrative messages.
2368 void quickie_message(char *from, char *to, char *room, char *text,
2369 int format_type, char *subject)
2371 struct CtdlMessage *msg;
2372 struct recptypes *recp = NULL;
2374 msg = malloc(sizeof(struct CtdlMessage));
2375 memset(msg, 0, sizeof(struct CtdlMessage));
2376 msg->cm_magic = CTDLMESSAGE_MAGIC;
2377 msg->cm_anon_type = MES_NORMAL;
2378 msg->cm_format_type = format_type;
2379 msg->cm_fields['A'] = strdup(from);
2380 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2381 msg->cm_fields['N'] = strdup(NODENAME);
2383 msg->cm_fields['R'] = strdup(to);
2384 recp = validate_recipients(to);
2386 if (subject != NULL) {
2387 msg->cm_fields['U'] = strdup(subject);
2389 msg->cm_fields['M'] = strdup(text);
2391 CtdlSubmitMsg(msg, recp, room);
2392 CtdlFreeMessage(msg);
2393 if (recp != NULL) free(recp);
2399 * Back end function used by CtdlMakeMessage() and similar functions
2401 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2402 size_t maxlen, /* maximum message length */
2403 char *exist, /* if non-null, append to it;
2404 exist is ALWAYS freed */
2405 int crlf /* CRLF newlines instead of LF */
2409 size_t message_len = 0;
2410 size_t buffer_len = 0;
2416 if (exist == NULL) {
2423 message_len = strlen(exist);
2424 buffer_len = message_len + 4096;
2425 m = realloc(exist, buffer_len);
2432 /* flush the input if we have nowhere to store it */
2437 /* read in the lines of message text one by one */
2439 if (client_getln(buf, (sizeof buf - 3)) < 1) finished = 1;
2440 if (!strcmp(buf, terminator)) finished = 1;
2442 strcat(buf, "\r\n");
2448 if ( (!flushing) && (!finished) ) {
2449 /* Measure the line */
2450 linelen = strlen(buf);
2452 /* augment the buffer if we have to */
2453 if ((message_len + linelen) >= buffer_len) {
2454 ptr = realloc(m, (buffer_len * 2) );
2455 if (ptr == NULL) { /* flush if can't allocate */
2458 buffer_len = (buffer_len * 2);
2460 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2464 /* Add the new line to the buffer. NOTE: this loop must avoid
2465 * using functions like strcat() and strlen() because they
2466 * traverse the entire buffer upon every call, and doing that
2467 * for a multi-megabyte message slows it down beyond usability.
2469 strcpy(&m[message_len], buf);
2470 message_len += linelen;
2473 /* if we've hit the max msg length, flush the rest */
2474 if (message_len >= maxlen) flushing = 1;
2476 } while (!finished);
2484 * Build a binary message to be saved on disk.
2485 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2486 * will become part of the message. This means you are no longer
2487 * responsible for managing that memory -- it will be freed along with
2488 * the rest of the fields when CtdlFreeMessage() is called.)
2491 struct CtdlMessage *CtdlMakeMessage(
2492 struct ctdluser *author, /* author's user structure */
2493 char *recipient, /* NULL if it's not mail */
2494 char *room, /* room where it's going */
2495 int type, /* see MES_ types in header file */
2496 int format_type, /* variformat, plain text, MIME... */
2497 char *fake_name, /* who we're masquerading as */
2498 char *subject, /* Subject (optional) */
2499 char *preformatted_text /* ...or NULL to read text from client */
2501 char dest_node[SIZ];
2503 struct CtdlMessage *msg;
2505 msg = malloc(sizeof(struct CtdlMessage));
2506 memset(msg, 0, sizeof(struct CtdlMessage));
2507 msg->cm_magic = CTDLMESSAGE_MAGIC;
2508 msg->cm_anon_type = type;
2509 msg->cm_format_type = format_type;
2511 /* Don't confuse the poor folks if it's not routed mail. */
2512 strcpy(dest_node, "");
2516 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2517 msg->cm_fields['P'] = strdup(buf);
2519 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2520 msg->cm_fields['T'] = strdup(buf);
2522 if (fake_name[0]) /* author */
2523 msg->cm_fields['A'] = strdup(fake_name);
2525 msg->cm_fields['A'] = strdup(author->fullname);
2527 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2528 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2531 msg->cm_fields['O'] = strdup(CC->room.QRname);
2534 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2535 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2537 if (recipient[0] != 0) {
2538 msg->cm_fields['R'] = strdup(recipient);
2540 if (dest_node[0] != 0) {
2541 msg->cm_fields['D'] = strdup(dest_node);
2544 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2545 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2548 if (subject != NULL) {
2550 if (strlen(subject) > 0) {
2551 msg->cm_fields['U'] = strdup(subject);
2555 if (preformatted_text != NULL) {
2556 msg->cm_fields['M'] = preformatted_text;
2559 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2560 config.c_maxmsglen, NULL, 0);
2568 * Check to see whether we have permission to post a message in the current
2569 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2570 * returns 0 on success.
2572 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2574 if (!(CC->logged_in)) {
2575 snprintf(errmsgbuf, n, "Not logged in.");
2576 return (ERROR + NOT_LOGGED_IN);
2579 if ((CC->user.axlevel < 2)
2580 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2581 snprintf(errmsgbuf, n, "Need to be validated to enter "
2582 "(except in %s> to sysop)", MAILROOM);
2583 return (ERROR + HIGHER_ACCESS_REQUIRED);
2586 if ((CC->user.axlevel < 4)
2587 && (CC->room.QRflags & QR_NETWORK)) {
2588 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2589 return (ERROR + HIGHER_ACCESS_REQUIRED);
2592 if ((CC->user.axlevel < 6)
2593 && (CC->room.QRflags & QR_READONLY)) {
2594 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2595 return (ERROR + HIGHER_ACCESS_REQUIRED);
2598 strcpy(errmsgbuf, "Ok");
2604 * Check to see if the specified user has Internet mail permission
2605 * (returns nonzero if permission is granted)
2607 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2609 /* Do not allow twits to send Internet mail */
2610 if (who->axlevel <= 2) return(0);
2612 /* Globally enabled? */
2613 if (config.c_restrict == 0) return(1);
2615 /* User flagged ok? */
2616 if (who->flags & US_INTERNET) return(2);
2618 /* Aide level access? */
2619 if (who->axlevel >= 6) return(3);
2621 /* No mail for you! */
2628 * Validate recipients, count delivery types and errors, and handle aliasing
2629 * FIXME check for dupes!!!!!
2631 struct recptypes *validate_recipients(char *recipients) {
2632 struct recptypes *ret;
2633 char this_recp[SIZ];
2634 char this_recp_cooked[SIZ];
2640 struct ctdluser tempUS;
2641 struct ctdlroom tempQR;
2644 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2645 if (ret == NULL) return(NULL);
2646 memset(ret, 0, sizeof(struct recptypes));
2649 ret->num_internet = 0;
2654 if (recipients == NULL) {
2657 else if (strlen(recipients) == 0) {
2661 /* Change all valid separator characters to commas */
2662 for (i=0; i<strlen(recipients); ++i) {
2663 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2664 recipients[i] = ',';
2669 num_recps = num_tokens(recipients, ',');
2672 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2673 extract_token(this_recp, recipients, i, ',', sizeof this_recp);
2675 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2676 mailtype = alias(this_recp);
2677 mailtype = alias(this_recp);
2678 mailtype = alias(this_recp);
2679 for (j=0; j<=strlen(this_recp); ++j) {
2680 if (this_recp[j]=='_') {
2681 this_recp_cooked[j] = ' ';
2684 this_recp_cooked[j] = this_recp[j];
2690 if (!strcasecmp(this_recp, "sysop")) {
2692 strcpy(this_recp, config.c_aideroom);
2693 if (strlen(ret->recp_room) > 0) {
2694 strcat(ret->recp_room, "|");
2696 strcat(ret->recp_room, this_recp);
2698 else if (getuser(&tempUS, this_recp) == 0) {
2700 strcpy(this_recp, tempUS.fullname);
2701 if (strlen(ret->recp_local) > 0) {
2702 strcat(ret->recp_local, "|");
2704 strcat(ret->recp_local, this_recp);
2706 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2708 strcpy(this_recp, tempUS.fullname);
2709 if (strlen(ret->recp_local) > 0) {
2710 strcat(ret->recp_local, "|");
2712 strcat(ret->recp_local, this_recp);
2714 else if ( (!strncasecmp(this_recp, "room_", 5))
2715 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2717 if (strlen(ret->recp_room) > 0) {
2718 strcat(ret->recp_room, "|");
2720 strcat(ret->recp_room, &this_recp_cooked[5]);
2728 /* Yes, you're reading this correctly: if the target
2729 * domain points back to the local system or an attached
2730 * Citadel directory, the address is invalid. That's
2731 * because if the address were valid, we would have
2732 * already translated it to a local address by now.
2734 if (IsDirectory(this_recp)) {
2739 ++ret->num_internet;
2740 if (strlen(ret->recp_internet) > 0) {
2741 strcat(ret->recp_internet, "|");
2743 strcat(ret->recp_internet, this_recp);
2748 if (strlen(ret->recp_ignet) > 0) {
2749 strcat(ret->recp_ignet, "|");
2751 strcat(ret->recp_ignet, this_recp);
2759 if (strlen(ret->errormsg) == 0) {
2760 snprintf(append, sizeof append,
2761 "Invalid recipient: %s",
2765 snprintf(append, sizeof append,
2768 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2769 strcat(ret->errormsg, append);
2773 if (strlen(ret->display_recp) == 0) {
2774 strcpy(append, this_recp);
2777 snprintf(append, sizeof append, ", %s",
2780 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2781 strcat(ret->display_recp, append);
2786 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2787 ret->num_room + ret->num_error) == 0) {
2789 strcpy(ret->errormsg, "No recipients specified.");
2792 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2793 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2794 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2795 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2796 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2797 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2805 * message entry - mode 0 (normal)
2807 void cmd_ent0(char *entargs)
2811 char masquerade_as[SIZ];
2813 int format_type = 0;
2814 char newusername[SIZ];
2815 struct CtdlMessage *msg;
2819 struct recptypes *valid = NULL;
2826 post = extract_int(entargs, 0);
2827 extract_token(recp, entargs, 1, '|', sizeof recp);
2828 anon_flag = extract_int(entargs, 2);
2829 format_type = extract_int(entargs, 3);
2830 extract_token(subject, entargs, 4, '|', sizeof subject);
2831 do_confirm = extract_int(entargs, 6);
2833 /* first check to make sure the request is valid. */
2835 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2837 cprintf("%d %s\n", err, errmsg);
2841 /* Check some other permission type things. */
2844 if (CC->user.axlevel < 6) {
2845 cprintf("%d You don't have permission to masquerade.\n",
2846 ERROR + HIGHER_ACCESS_REQUIRED);
2849 extract_token(newusername, entargs, 5, '|', sizeof newusername);
2850 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2851 safestrncpy(CC->fake_postname, newusername,
2852 sizeof(CC->fake_postname) );
2853 cprintf("%d ok\n", CIT_OK);
2856 CC->cs_flags |= CS_POSTING;
2858 /* In the Mail> room we have to behave a little differently --
2859 * make sure the user has specified at least one recipient. Then
2860 * validate the recipient(s).
2862 if ( (CC->room.QRflags & QR_MAILBOX)
2863 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2865 if (CC->user.axlevel < 2) {
2866 strcpy(recp, "sysop");
2869 valid = validate_recipients(recp);
2870 if (valid->num_error > 0) {
2872 ERROR + NO_SUCH_USER, valid->errormsg);
2876 if (valid->num_internet > 0) {
2877 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2878 cprintf("%d You do not have permission "
2879 "to send Internet mail.\n",
2880 ERROR + HIGHER_ACCESS_REQUIRED);
2886 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2887 && (CC->user.axlevel < 4) ) {
2888 cprintf("%d Higher access required for network mail.\n",
2889 ERROR + HIGHER_ACCESS_REQUIRED);
2894 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2895 && ((CC->user.flags & US_INTERNET) == 0)
2896 && (!CC->internal_pgm)) {
2897 cprintf("%d You don't have access to Internet mail.\n",
2898 ERROR + HIGHER_ACCESS_REQUIRED);
2905 /* Is this a room which has anonymous-only or anonymous-option? */
2906 anonymous = MES_NORMAL;
2907 if (CC->room.QRflags & QR_ANONONLY) {
2908 anonymous = MES_ANONONLY;
2910 if (CC->room.QRflags & QR_ANONOPT) {
2911 if (anon_flag == 1) { /* only if the user requested it */
2912 anonymous = MES_ANONOPT;
2916 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2920 /* If we're only checking the validity of the request, return
2921 * success without creating the message.
2924 cprintf("%d %s\n", CIT_OK,
2925 ((valid != NULL) ? valid->display_recp : "") );
2930 /* Handle author masquerading */
2931 if (CC->fake_postname[0]) {
2932 strcpy(masquerade_as, CC->fake_postname);
2934 else if (CC->fake_username[0]) {
2935 strcpy(masquerade_as, CC->fake_username);
2938 strcpy(masquerade_as, "");
2941 /* Read in the message from the client. */
2943 cprintf("%d send message\n", START_CHAT_MODE);
2945 cprintf("%d send message\n", SEND_LISTING);
2947 msg = CtdlMakeMessage(&CC->user, recp,
2948 CC->room.QRname, anonymous, format_type,
2949 masquerade_as, subject, NULL);
2952 msgnum = CtdlSubmitMsg(msg, valid, "");
2955 cprintf("%ld\n", msgnum);
2957 cprintf("Message accepted.\n");
2960 cprintf("Internal error.\n");
2962 if (msg->cm_fields['E'] != NULL) {
2963 cprintf("%s\n", msg->cm_fields['E']);
2970 CtdlFreeMessage(msg);
2972 CC->fake_postname[0] = '\0';
2980 * API function to delete messages which match a set of criteria
2981 * (returns the actual number of messages deleted)
2983 int CtdlDeleteMessages(char *room_name, /* which room */
2984 long dmsgnum, /* or "0" for any */
2985 char *content_type, /* or "" for any */
2986 int deferred /* let TDAP sweep it later */
2990 struct ctdlroom qrbuf;
2991 struct cdbdata *cdbfr;
2992 long *msglist = NULL;
2993 long *dellist = NULL;
2996 int num_deleted = 0;
2998 struct MetaData smi;
3000 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s, %d)\n",
3001 room_name, dmsgnum, content_type, deferred);
3003 /* get room record, obtaining a lock... */
3004 if (lgetroom(&qrbuf, room_name) != 0) {
3005 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
3007 return (0); /* room not found */
3009 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
3011 if (cdbfr != NULL) {
3012 msglist = malloc(cdbfr->len);
3013 dellist = malloc(cdbfr->len);
3014 memcpy(msglist, cdbfr->ptr, cdbfr->len);
3015 num_msgs = cdbfr->len / sizeof(long);
3019 for (i = 0; i < num_msgs; ++i) {
3022 /* Set/clear a bit for each criterion */
3024 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
3025 delete_this |= 0x01;
3027 if (strlen(content_type) == 0) {
3028 delete_this |= 0x02;
3030 GetMetaData(&smi, msglist[i]);
3031 if (!strcasecmp(smi.meta_content_type,
3033 delete_this |= 0x02;
3037 /* Delete message only if all bits are set */
3038 if (delete_this == 0x03) {
3039 dellist[num_deleted++] = msglist[i];
3044 num_msgs = sort_msglist(msglist, num_msgs);
3045 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
3046 msglist, (int)(num_msgs * sizeof(long)));
3048 qrbuf.QRhighest = msglist[num_msgs - 1];
3053 * If the delete operation is "deferred" (and technically, any delete
3054 * operation not performed by THE DREADED AUTO-PURGER ought to be
3055 * a deferred delete) then we save a pointer to the message in the
3056 * DELETED_MSGS_ROOM. This will cause the reference count to remain
3057 * at least 1, which will save the user from having to synchronously
3058 * wait for various disk-intensive operations to complete.
3060 if ( (deferred) && (num_deleted) ) {
3061 for (i=0; i<num_deleted; ++i) {
3062 CtdlCopyMsgToRoom(dellist[i], DELETED_MSGS_ROOM);
3066 /* Go through the messages we pulled out of the index, and decrement
3067 * their reference counts by 1. If this is the only room the message
3068 * was in, the reference count will reach zero and the message will
3069 * automatically be deleted from the database. We do this in a
3070 * separate pass because there might be plug-in hooks getting called,
3071 * and we don't want that happening during an S_ROOMS critical
3074 if (num_deleted) for (i=0; i<num_deleted; ++i) {
3075 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
3076 AdjRefCount(dellist[i], -1);
3079 /* Now free the memory we used, and go away. */
3080 if (msglist != NULL) free(msglist);
3081 if (dellist != NULL) free(dellist);
3082 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
3083 return (num_deleted);
3089 * Check whether the current user has permission to delete messages from
3090 * the current room (returns 1 for yes, 0 for no)
3092 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
3093 getuser(&CC->user, CC->curr_user);
3094 if ((CC->user.axlevel < 6)
3095 && (CC->user.usernum != CC->room.QRroomaide)
3096 && ((CC->room.QRflags & QR_MAILBOX) == 0)
3097 && (!(CC->internal_pgm))) {
3106 * Delete message from current room
3108 void cmd_dele(char *delstr)
3113 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
3114 cprintf("%d Higher access required.\n",
3115 ERROR + HIGHER_ACCESS_REQUIRED);
3118 delnum = extract_long(delstr, 0);
3120 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "", 1);
3123 cprintf("%d %d message%s deleted.\n", CIT_OK,
3124 num_deleted, ((num_deleted != 1) ? "s" : ""));
3126 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
3132 * Back end API function for moves and deletes
3134 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
3137 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
3138 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
3139 if (err != 0) return(err);
3147 * move or copy a message to another room
3149 void cmd_move(char *args)
3152 char targ[ROOMNAMELEN];
3153 struct ctdlroom qtemp;
3159 num = extract_long(args, 0);
3160 extract_token(targ, args, 1, '|', sizeof targ);
3161 targ[ROOMNAMELEN - 1] = 0;
3162 is_copy = extract_int(args, 2);
3164 if (getroom(&qtemp, targ) != 0) {
3165 cprintf("%d '%s' does not exist.\n",
3166 ERROR + ROOM_NOT_FOUND, targ);
3170 getuser(&CC->user, CC->curr_user);
3171 CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
3173 /* Check for permission to perform this operation.
3174 * Remember: "CC->room" is source, "qtemp" is target.
3178 /* Aides can move/copy */
3179 if (CC->user.axlevel >= 6) permit = 1;
3181 /* Room aides can move/copy */
3182 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3184 /* Permit move/copy from personal rooms */
3185 if ((CC->room.QRflags & QR_MAILBOX)
3186 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3188 /* Permit only copy from public to personal room */
3190 && (!(CC->room.QRflags & QR_MAILBOX))
3191 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3193 /* User must have access to target room */
3194 if (!(ra & UA_KNOWN)) permit = 0;
3197 cprintf("%d Higher access required.\n",
3198 ERROR + HIGHER_ACCESS_REQUIRED);
3202 err = CtdlCopyMsgToRoom(num, targ);
3204 cprintf("%d Cannot store message in %s: error %d\n",
3209 /* Now delete the message from the source room,
3210 * if this is a 'move' rather than a 'copy' operation.
3213 CtdlDeleteMessages(CC->room.QRname, num, "", 0);
3216 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3222 * GetMetaData() - Get the supplementary record for a message
3224 void GetMetaData(struct MetaData *smibuf, long msgnum)
3227 struct cdbdata *cdbsmi;
3230 memset(smibuf, 0, sizeof(struct MetaData));
3231 smibuf->meta_msgnum = msgnum;
3232 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3234 /* Use the negative of the message number for its supp record index */
3235 TheIndex = (0L - msgnum);
3237 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3238 if (cdbsmi == NULL) {
3239 return; /* record not found; go with defaults */
3241 memcpy(smibuf, cdbsmi->ptr,
3242 ((cdbsmi->len > sizeof(struct MetaData)) ?
3243 sizeof(struct MetaData) : cdbsmi->len));
3250 * PutMetaData() - (re)write supplementary record for a message
3252 void PutMetaData(struct MetaData *smibuf)
3256 /* Use the negative of the message number for the metadata db index */
3257 TheIndex = (0L - smibuf->meta_msgnum);
3259 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3260 smibuf->meta_msgnum, smibuf->meta_refcount);
3262 cdb_store(CDB_MSGMAIN,
3263 &TheIndex, (int)sizeof(long),
3264 smibuf, (int)sizeof(struct MetaData));
3269 * AdjRefCount - change the reference count for a message;
3270 * delete the message if it reaches zero
3272 void AdjRefCount(long msgnum, int incr)
3275 struct MetaData smi;
3278 /* This is a *tight* critical section; please keep it that way, as
3279 * it may get called while nested in other critical sections.
3280 * Complicating this any further will surely cause deadlock!
3282 begin_critical_section(S_SUPPMSGMAIN);
3283 GetMetaData(&smi, msgnum);
3284 smi.meta_refcount += incr;
3286 end_critical_section(S_SUPPMSGMAIN);
3287 lprintf(CTDL_DEBUG, "msg %ld ref count incr %d, is now %d\n",
3288 msgnum, incr, smi.meta_refcount);
3290 /* If the reference count is now zero, delete the message
3291 * (and its supplementary record as well).
3292 * FIXME ... defer this so it doesn't keep the user waiting.
3294 if (smi.meta_refcount == 0) {
3295 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3297 /* Remove from fulltext index */
3298 if (config.c_enable_fulltext) {
3299 ft_index_message(msgnum, 0);
3302 /* Remove from message base */
3304 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3305 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
3307 /* Remove metadata record */
3308 delnum = (0L - msgnum);
3309 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3314 * Write a generic object to this room
3316 * Note: this could be much more efficient. Right now we use two temporary
3317 * files, and still pull the message into memory as with all others.
3319 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3320 char *content_type, /* MIME type of this object */
3321 char *tempfilename, /* Where to fetch it from */
3322 struct ctdluser *is_mailbox, /* Mailbox room? */
3323 int is_binary, /* Is encoding necessary? */
3324 int is_unique, /* Del others of this type? */
3325 unsigned int flags /* Internal save flags */
3330 struct ctdlroom qrbuf;
3331 char roomname[ROOMNAMELEN];
3332 struct CtdlMessage *msg;
3334 char *raw_message = NULL;
3335 char *encoded_message = NULL;
3336 off_t raw_length = 0;
3338 if (is_mailbox != NULL)
3339 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3341 safestrncpy(roomname, req_room, sizeof(roomname));
3342 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3345 fp = fopen(tempfilename, "rb");
3347 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3348 tempfilename, strerror(errno));
3351 fseek(fp, 0L, SEEK_END);
3352 raw_length = ftell(fp);
3354 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3356 raw_message = malloc((size_t)raw_length + 2);
3357 fread(raw_message, (size_t)raw_length, 1, fp);
3361 encoded_message = malloc((size_t)
3362 (((raw_length * 134) / 100) + 4096 ) );
3365 encoded_message = malloc((size_t)(raw_length + 4096));
3368 sprintf(encoded_message, "Content-type: %s\n", content_type);
3371 sprintf(&encoded_message[strlen(encoded_message)],
3372 "Content-transfer-encoding: base64\n\n"
3376 sprintf(&encoded_message[strlen(encoded_message)],
3377 "Content-transfer-encoding: 7bit\n\n"
3383 &encoded_message[strlen(encoded_message)],
3389 raw_message[raw_length] = 0;
3391 &encoded_message[strlen(encoded_message)],
3399 lprintf(CTDL_DEBUG, "Allocating\n");
3400 msg = malloc(sizeof(struct CtdlMessage));
3401 memset(msg, 0, sizeof(struct CtdlMessage));
3402 msg->cm_magic = CTDLMESSAGE_MAGIC;
3403 msg->cm_anon_type = MES_NORMAL;
3404 msg->cm_format_type = 4;
3405 msg->cm_fields['A'] = strdup(CC->user.fullname);
3406 msg->cm_fields['O'] = strdup(req_room);
3407 msg->cm_fields['N'] = strdup(config.c_nodename);
3408 msg->cm_fields['H'] = strdup(config.c_humannode);
3409 msg->cm_flags = flags;
3411 msg->cm_fields['M'] = encoded_message;
3413 /* Create the requested room if we have to. */
3414 if (getroom(&qrbuf, roomname) != 0) {
3415 create_room(roomname,
3416 ( (is_mailbox != NULL) ? 5 : 3 ),
3417 "", 0, 1, 0, VIEW_BBS);
3419 /* If the caller specified this object as unique, delete all
3420 * other objects of this type that are currently in the room.
3423 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3424 CtdlDeleteMessages(roomname, 0L, content_type, 0)
3427 /* Now write the data */
3428 CtdlSubmitMsg(msg, NULL, roomname);
3429 CtdlFreeMessage(msg);
3437 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3438 config_msgnum = msgnum;
3442 char *CtdlGetSysConfig(char *sysconfname) {
3443 char hold_rm[ROOMNAMELEN];
3446 struct CtdlMessage *msg;
3449 strcpy(hold_rm, CC->room.QRname);
3450 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3451 getroom(&CC->room, hold_rm);
3456 /* We want the last (and probably only) config in this room */
3457 begin_critical_section(S_CONFIG);
3458 config_msgnum = (-1L);
3459 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3460 CtdlGetSysConfigBackend, NULL);
3461 msgnum = config_msgnum;
3462 end_critical_section(S_CONFIG);
3468 msg = CtdlFetchMessage(msgnum, 1);
3470 conf = strdup(msg->cm_fields['M']);
3471 CtdlFreeMessage(msg);
3478 getroom(&CC->room, hold_rm);
3480 if (conf != NULL) do {
3481 extract_token(buf, conf, 0, '\n', sizeof buf);
3482 strcpy(conf, &conf[strlen(buf)+1]);
3483 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3488 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3489 char temp[PATH_MAX];
3492 strcpy(temp, tmpnam(NULL));
3494 fp = fopen(temp, "w");
3495 if (fp == NULL) return;
3496 fprintf(fp, "%s", sysconfdata);
3499 /* this handy API function does all the work for us */
3500 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3506 * Determine whether a given Internet address belongs to the current user
3508 int CtdlIsMe(char *addr, int addr_buf_len)
3510 struct recptypes *recp;
3513 recp = validate_recipients(addr);
3514 if (recp == NULL) return(0);
3516 if (recp->num_local == 0) {
3521 for (i=0; i<recp->num_local; ++i) {
3522 extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
3523 if (!strcasecmp(addr, CC->user.fullname)) {
3535 * Citadel protocol command to do the same
3537 void cmd_isme(char *argbuf) {
3540 if (CtdlAccessCheck(ac_logged_in)) return;
3541 extract_token(addr, argbuf, 0, '|', sizeof addr);
3543 if (CtdlIsMe(addr, sizeof addr)) {
3544 cprintf("%d %s\n", CIT_OK, addr);
3547 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);