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"
49 #include "mime_parser.h"
52 #include "internet_addressing.h"
54 #define desired_section ((char *)CtdlGetUserData(SYM_DESIRED_SECTION))
55 #define ma ((struct ma_info *)CtdlGetUserData(SYM_MA_INFO))
56 #define msg_repl ((struct repl *)CtdlGetUserData(SYM_REPL))
58 extern struct config config;
63 * This really belongs in serv_network.c, but I don't know how to export
64 * symbols between modules.
66 struct FilterList *filterlist = NULL;
70 * These are the four-character field headers we use when outputting
71 * messages in Citadel format (as opposed to RFC822 format).
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,
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,
108 * This function is self explanatory.
109 * (What can I say, I'm in a weird mood today...)
111 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
115 for (i = 0; i < strlen(name); ++i) {
116 if (name[i] == '@') {
117 while (isspace(name[i - 1]) && i > 0) {
118 strcpy(&name[i - 1], &name[i]);
121 while (isspace(name[i + 1])) {
122 strcpy(&name[i + 1], &name[i + 2]);
130 * Aliasing for network mail.
131 * (Error messages have been commented out, because this is a server.)
133 int alias(char *name)
134 { /* process alias and routing info for mail */
137 char aaa[SIZ], bbb[SIZ];
138 char *ignetcfg = NULL;
139 char *ignetmap = NULL;
146 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
148 fp = fopen("network/mail.aliases", "r");
150 fp = fopen("/dev/null", "r");
157 while (fgets(aaa, sizeof aaa, fp) != NULL) {
158 while (isspace(name[0]))
159 strcpy(name, &name[1]);
160 aaa[strlen(aaa) - 1] = 0;
162 for (a = 0; a < strlen(aaa); ++a) {
164 strcpy(bbb, &aaa[a + 1]);
168 if (!strcasecmp(name, aaa))
173 /* Hit the Global Address Book */
174 if (CtdlDirectoryLookup(aaa, name) == 0) {
178 lprintf(CTDL_INFO, "Mail is being forwarded to %s\n", name);
180 /* Change "user @ xxx" to "user" if xxx is an alias for this host */
181 for (a=0; a<strlen(name); ++a) {
182 if (name[a] == '@') {
183 if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
185 lprintf(CTDL_INFO, "Changed to <%s>\n", name);
190 /* determine local or remote type, see citadel.h */
191 at = haschar(name, '@');
192 if (at == 0) return(MES_LOCAL); /* no @'s - local address */
193 if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
194 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
196 /* figure out the delivery mode */
197 extract_token(node, name, 1, '@');
199 /* If there are one or more dots in the nodename, we assume that it
200 * is an FQDN and will attempt SMTP delivery to the Internet.
202 if (haschar(node, '.') > 0) {
203 return(MES_INTERNET);
206 /* Otherwise we look in the IGnet maps for a valid Citadel node.
207 * Try directly-connected nodes first...
209 ignetcfg = CtdlGetSysConfig(IGNETCFG);
210 for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
211 extract_token(buf, ignetcfg, i, '\n');
212 extract_token(testnode, buf, 0, '|');
213 if (!strcasecmp(node, testnode)) {
221 * Then try nodes that are two or more hops away.
223 ignetmap = CtdlGetSysConfig(IGNETMAP);
224 for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
225 extract_token(buf, ignetmap, i, '\n');
226 extract_token(testnode, buf, 0, '|');
227 if (!strcasecmp(node, testnode)) {
234 /* If we get to this point it's an invalid node name */
243 fp = fopen("citadel.control", "r");
245 lprintf(CTDL_CRIT, "Cannot open citadel.control: %s\n",
249 fread((char *) &CitControl, sizeof(struct CitControl), 1, fp);
255 void simple_listing(long msgnum, void *userdata)
257 cprintf("%ld\n", msgnum);
262 /* Determine if a given message matches the fields in a message template.
263 * Return 0 for a successful match.
265 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
268 /* If there aren't any fields in the template, all messages will
271 if (template == NULL) return(0);
273 /* Null messages are bogus. */
274 if (msg == NULL) return(1);
276 for (i='A'; i<='Z'; ++i) {
277 if (template->cm_fields[i] != NULL) {
278 if (msg->cm_fields[i] == NULL) {
281 if (strcasecmp(msg->cm_fields[i],
282 template->cm_fields[i])) return 1;
286 /* All compares succeeded: we have a match! */
293 * Retrieve the "seen" message list for the current room.
295 void CtdlGetSeen(char *buf, int which_set) {
298 /* Learn about the user and room in question */
299 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
301 if (which_set == ctdlsetseen_seen)
302 safestrncpy(buf, vbuf.v_seen, SIZ);
303 if (which_set == ctdlsetseen_answered)
304 safestrncpy(buf, vbuf.v_answered, SIZ);
310 * Manipulate the "seen msgs" string (or other message set strings)
312 void CtdlSetSeen(long target_msgnum, int target_setting, int which_set) {
314 struct cdbdata *cdbfr;
325 lprintf(CTDL_DEBUG, "CtdlSetSeen(%ld, %d, %d)\n",
326 target_msgnum, target_setting, which_set);
328 /* Learn about the user and room in question */
329 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
331 /* Load the message list */
332 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
334 msglist = malloc(cdbfr->len);
335 memcpy(msglist, cdbfr->ptr, cdbfr->len);
336 num_msgs = cdbfr->len / sizeof(long);
339 return; /* No messages at all? No further action. */
342 /* Decide which message set we're manipulating */
343 if (which_set == ctdlsetseen_seen) strcpy(vset, vbuf.v_seen);
344 if (which_set == ctdlsetseen_answered) strcpy(vset, vbuf.v_answered);
346 lprintf(CTDL_DEBUG, "before optimize: %s\n", vset);
349 for (i=0; i<num_msgs; ++i) {
352 if (msglist[i] == target_msgnum) {
353 is_seen = target_setting;
356 if (is_msg_in_mset(vset, msglist[i])) {
362 if (lo < 0L) lo = msglist[i];
365 if ( ((is_seen == 0) && (was_seen == 1))
366 || ((is_seen == 1) && (i == num_msgs-1)) ) {
369 if ( (strlen(newseen) + 20) > SIZ) {
370 strcpy(newseen, &newseen[20]);
373 tmp = strlen(newseen);
375 strcat(newseen, ",");
379 snprintf(&newseen[tmp], sizeof newseen - tmp,
383 snprintf(&newseen[tmp], sizeof newseen - tmp,
392 /* Decide which message set we're manipulating */
393 if (which_set == ctdlsetseen_seen) strcpy(vbuf.v_seen, newseen);
394 if (which_set == ctdlsetseen_answered) strcpy(vbuf.v_answered, newseen);
396 lprintf(CTDL_DEBUG, " after optimize: %s\n", newseen);
398 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
403 * API function to perform an operation for each qualifying message in the
404 * current room. (Returns the number of messages processed.)
406 int CtdlForEachMessage(int mode, long ref,
408 struct CtdlMessage *compare,
409 void (*CallBack) (long, void *),
415 struct cdbdata *cdbfr;
416 long *msglist = NULL;
418 int num_processed = 0;
421 struct CtdlMessage *msg;
424 int printed_lastold = 0;
426 /* Learn about the user and room in question */
428 getuser(&CC->user, CC->curr_user);
429 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
431 /* Load the message list */
432 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
434 msglist = malloc(cdbfr->len);
435 memcpy(msglist, cdbfr->ptr, cdbfr->len);
436 num_msgs = cdbfr->len / sizeof(long);
439 return 0; /* No messages at all? No further action. */
444 * Now begin the traversal.
446 if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
448 /* If the caller is looking for a specific MIME type, filter
449 * out all messages which are not of the type requested.
451 if (content_type != NULL) if (strlen(content_type) > 0) {
453 /* This call to GetMetaData() sits inside this loop
454 * so that we only do the extra database read per msg
455 * if we need to. Doing the extra read all the time
456 * really kills the server. If we ever need to use
457 * metadata for another search criterion, we need to
458 * move the read somewhere else -- but still be smart
459 * enough to only do the read if the caller has
460 * specified something that will need it.
462 GetMetaData(&smi, msglist[a]);
464 if (strcasecmp(smi.meta_content_type, content_type)) {
470 num_msgs = sort_msglist(msglist, num_msgs);
472 /* If a template was supplied, filter out the messages which
473 * don't match. (This could induce some delays!)
476 if (compare != NULL) {
477 for (a = 0; a < num_msgs; ++a) {
478 msg = CtdlFetchMessage(msglist[a], 1);
480 if (CtdlMsgCmp(msg, compare)) {
483 CtdlFreeMessage(msg);
491 * Now iterate through the message list, according to the
492 * criteria supplied by the caller.
495 for (a = 0; a < num_msgs; ++a) {
496 thismsg = msglist[a];
497 is_seen = is_msg_in_mset(vbuf.v_seen, thismsg);
498 if (is_seen) lastold = thismsg;
503 || ((mode == MSGS_OLD) && (is_seen))
504 || ((mode == MSGS_NEW) && (!is_seen))
505 || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
506 || ((mode == MSGS_FIRST) && (a < ref))
507 || ((mode == MSGS_GT) && (thismsg > ref))
508 || ((mode == MSGS_EQ) && (thismsg == ref))
511 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
513 CallBack(lastold, userdata);
517 if (CallBack) CallBack(thismsg, userdata);
521 free(msglist); /* Clean up */
522 return num_processed;
528 * cmd_msgs() - get list of message #'s in this room
529 * implements the MSGS server command using CtdlForEachMessage()
531 void cmd_msgs(char *cmdbuf)
540 int with_template = 0;
541 struct CtdlMessage *template = NULL;
543 extract(which, cmdbuf, 0);
544 cm_ref = extract_int(cmdbuf, 1);
545 with_template = extract_int(cmdbuf, 2);
549 if (!strncasecmp(which, "OLD", 3))
551 else if (!strncasecmp(which, "NEW", 3))
553 else if (!strncasecmp(which, "FIRST", 5))
555 else if (!strncasecmp(which, "LAST", 4))
557 else if (!strncasecmp(which, "GT", 2))
560 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
561 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
566 cprintf("%d Send template then receive message list\n",
568 template = (struct CtdlMessage *)
569 malloc(sizeof(struct CtdlMessage));
570 memset(template, 0, sizeof(struct CtdlMessage));
571 while(client_gets(buf), strcmp(buf,"000")) {
572 extract(tfield, buf, 0);
573 extract(tvalue, buf, 1);
574 for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
575 if (!strcasecmp(tfield, msgkeys[i])) {
576 template->cm_fields[i] =
583 cprintf("%d Message list...\n", LISTING_FOLLOWS);
586 CtdlForEachMessage(mode, cm_ref,
587 NULL, template, simple_listing, NULL);
588 if (template != NULL) CtdlFreeMessage(template);
596 * help_subst() - support routine for help file viewer
598 void help_subst(char *strbuf, char *source, char *dest)
603 while (p = pattern2(strbuf, source), (p >= 0)) {
604 strcpy(workbuf, &strbuf[p + strlen(source)]);
605 strcpy(&strbuf[p], dest);
606 strcat(strbuf, workbuf);
611 void do_help_subst(char *buffer)
615 help_subst(buffer, "^nodename", config.c_nodename);
616 help_subst(buffer, "^humannode", config.c_humannode);
617 help_subst(buffer, "^fqdn", config.c_fqdn);
618 help_subst(buffer, "^username", CC->user.fullname);
619 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
620 help_subst(buffer, "^usernum", buf2);
621 help_subst(buffer, "^sysadm", config.c_sysadm);
622 help_subst(buffer, "^variantname", CITADEL);
623 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
624 help_subst(buffer, "^maxsessions", buf2);
625 help_subst(buffer, "^bbsdir", BBSDIR);
631 * memfmout() - Citadel text formatter and paginator.
632 * Although the original purpose of this routine was to format
633 * text to the reader's screen width, all we're really using it
634 * for here is to format text out to 80 columns before sending it
635 * to the client. The client software may reformat it again.
638 int width, /* screen width to use */
639 char *mptr, /* where are we going to get our text from? */
640 char subst, /* nonzero if we should do substitutions */
641 char *nl) /* string to terminate lines with */
653 c = 1; /* c is the current pos */
657 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
659 buffer[strlen(buffer) + 1] = 0;
660 buffer[strlen(buffer)] = ch;
663 if (buffer[0] == '^')
664 do_help_subst(buffer);
666 buffer[strlen(buffer) + 1] = 0;
668 strcpy(buffer, &buffer[1]);
676 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
678 if (((old == 13) || (old == 10)) && (isspace(real))) {
686 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
687 cprintf("%s%s", nl, aaa);
696 if ((strlen(aaa) + c) > (width - 5)) {
705 if ((ch == 13) || (ch == 10)) {
706 cprintf("%s%s", aaa, nl);
713 cprintf("%s%s", aaa, nl);
719 * Callback function for mime parser that simply lists the part
721 void list_this_part(char *name, char *filename, char *partnum, char *disp,
722 void *content, char *cbtype, size_t length, char *encoding,
726 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
727 name, filename, partnum, disp, cbtype, (long)length);
731 * Callback function for multipart prefix
733 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
734 void *content, char *cbtype, size_t length, char *encoding,
737 cprintf("pref=%s|%s\n", partnum, cbtype);
741 * Callback function for multipart sufffix
743 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
744 void *content, char *cbtype, size_t length, char *encoding,
747 cprintf("suff=%s|%s\n", partnum, cbtype);
752 * Callback function for mime parser that opens a section for downloading
754 void mime_download(char *name, char *filename, char *partnum, char *disp,
755 void *content, char *cbtype, size_t length, char *encoding,
759 /* Silently go away if there's already a download open... */
760 if (CC->download_fp != NULL)
763 /* ...or if this is not the desired section */
764 if (strcasecmp(desired_section, partnum))
767 CC->download_fp = tmpfile();
768 if (CC->download_fp == NULL)
771 fwrite(content, length, 1, CC->download_fp);
772 fflush(CC->download_fp);
773 rewind(CC->download_fp);
775 OpenCmdResult(filename, cbtype);
781 * Load a message from disk into memory.
782 * This is used by CtdlOutputMsg() and other fetch functions.
784 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
785 * using the CtdlMessageFree() function.
787 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
789 struct cdbdata *dmsgtext;
790 struct cdbdata *dbigmsg;
791 struct CtdlMessage *ret = NULL;
794 cit_uint8_t field_header;
797 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
798 if (dmsgtext == NULL) {
801 mptr = dmsgtext->ptr;
803 /* Parse the three bytes that begin EVERY message on disk.
804 * The first is always 0xFF, the on-disk magic number.
805 * The second is the anonymous/public type byte.
806 * The third is the format type byte (vari, fixed, or MIME).
810 lprintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
814 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
815 memset(ret, 0, sizeof(struct CtdlMessage));
817 ret->cm_magic = CTDLMESSAGE_MAGIC;
818 ret->cm_anon_type = *mptr++; /* Anon type byte */
819 ret->cm_format_type = *mptr++; /* Format type byte */
822 * The rest is zero or more arbitrary fields. Load them in.
823 * We're done when we encounter either a zero-length field or
824 * have just processed the 'M' (message text) field.
827 field_length = strlen(mptr);
828 if (field_length == 0)
830 field_header = *mptr++;
831 ret->cm_fields[field_header] = malloc(field_length);
832 strcpy(ret->cm_fields[field_header], mptr);
834 while (*mptr++ != 0); /* advance to next field */
836 } while ((field_length > 0) && (field_header != 'M'));
840 /* Always make sure there's something in the msg text field. If
841 * it's NULL, the message text is most likely stored separately,
842 * so go ahead and fetch that. Failing that, just set a dummy
843 * body so other code doesn't barf.
845 if (ret->cm_fields['M'] == NULL) {
847 dbigmsg = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
848 if (dmsgtext == NULL) {
849 ret->cm_fields['M'] = strdup("<no text>\n");
852 ret->cm_fields['M'] = strdup(dbigmsg->ptr);
857 /* Perform "before read" hooks (aborting if any return nonzero) */
858 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
859 CtdlFreeMessage(ret);
868 * Returns 1 if the supplied pointer points to a valid Citadel message.
869 * If the pointer is NULL or the magic number check fails, returns 0.
871 int is_valid_message(struct CtdlMessage *msg) {
874 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
875 lprintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
883 * 'Destructor' for struct CtdlMessage
885 void CtdlFreeMessage(struct CtdlMessage *msg)
889 if (is_valid_message(msg) == 0) return;
891 for (i = 0; i < 256; ++i)
892 if (msg->cm_fields[i] != NULL) {
893 free(msg->cm_fields[i]);
896 msg->cm_magic = 0; /* just in case */
902 * Pre callback function for multipart/alternative
904 * NOTE: this differs from the standard behavior for a reason. Normally when
905 * displaying multipart/alternative you want to show the _last_ usable
906 * format in the message. Here we show the _first_ one, because it's
907 * usually text/plain. Since this set of functions is designed for text
908 * output to non-MIME-aware clients, this is the desired behavior.
911 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
912 void *content, char *cbtype, size_t length, char *encoding,
915 lprintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
916 if (!strcasecmp(cbtype, "multipart/alternative")) {
924 * Post callback function for multipart/alternative
926 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
927 void *content, char *cbtype, size_t length, char *encoding,
930 lprintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
931 if (!strcasecmp(cbtype, "multipart/alternative")) {
939 * Inline callback function for mime parser that wants to display text
941 void fixed_output(char *name, char *filename, char *partnum, char *disp,
942 void *content, char *cbtype, size_t length, char *encoding,
949 lprintf(CTDL_DEBUG, "fixed_output() type=<%s>\n", cbtype);
952 * If we're in the middle of a multipart/alternative scope and
953 * we've already printed another section, skip this one.
955 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
956 lprintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
961 if ( (!strcasecmp(cbtype, "text/plain"))
962 || (strlen(cbtype)==0) ) {
965 client_write(wptr, length);
966 if (wptr[length-1] != '\n') {
971 else if (!strcasecmp(cbtype, "text/html")) {
972 ptr = html_to_ascii(content, 80, 0);
974 client_write(ptr, wlen);
975 if (ptr[wlen-1] != '\n') {
980 else if (strncasecmp(cbtype, "multipart/", 10)) {
981 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
982 partnum, filename, cbtype, (long)length);
987 * The client is elegant and sophisticated and wants to be choosy about
988 * MIME content types, so figure out which multipart/alternative part
989 * we're going to send.
991 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
992 void *content, char *cbtype, size_t length, char *encoding,
999 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1000 extract(buf, CC->preferred_formats, i);
1001 if (!strcasecmp(buf, cbtype)) {
1002 strcpy(ma->chosen_part, partnum);
1009 * Now that we've chosen our preferred part, output it.
1011 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1012 void *content, char *cbtype, size_t length, char *encoding,
1017 int add_newline = 0;
1020 /* This is not the MIME part you're looking for... */
1021 if (strcasecmp(partnum, ma->chosen_part)) return;
1023 /* If the content-type of this part is in our preferred formats
1024 * list, we can simply output it verbatim.
1026 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1027 extract(buf, CC->preferred_formats, i);
1028 if (!strcasecmp(buf, cbtype)) {
1029 /* Yeah! Go! W00t!! */
1031 text_content = (char *)content;
1032 if (text_content[length-1] != '\n') {
1036 cprintf("Content-type: %s\n", cbtype);
1037 cprintf("Content-length: %d\n",
1038 (int)(length + add_newline) );
1039 if (strlen(encoding) > 0) {
1040 cprintf("Content-transfer-encoding: %s\n", encoding);
1043 cprintf("Content-transfer-encoding: 7bit\n");
1046 client_write(content, length);
1047 if (add_newline) cprintf("\n");
1052 /* No translations required or possible: output as text/plain */
1053 cprintf("Content-type: text/plain\n\n");
1054 fixed_output(name, filename, partnum, disp, content, cbtype,
1055 length, encoding, cbuserdata);
1060 * Get a message off disk. (returns om_* values found in msgbase.h)
1063 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1064 int mode, /* how would you like that message? */
1065 int headers_only, /* eschew the message body? */
1066 int do_proto, /* do Citadel protocol responses? */
1067 int crlf /* Use CRLF newlines instead of LF? */
1069 struct CtdlMessage *TheMessage;
1072 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1077 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1078 if (do_proto) cprintf("%d Not logged in.\n",
1079 ERROR + NOT_LOGGED_IN);
1080 return(om_not_logged_in);
1083 /* FIXME ... small security issue
1084 * We need to check to make sure the requested message is actually
1085 * in the current room, and set msg_ok to 1 only if it is. This
1086 * functionality is currently missing because I'm in a hurry to replace
1087 * broken production code with nonbroken pre-beta code. :( -- ajc
1090 if (do_proto) cprintf("%d Message %ld is not in this room.\n",
1091 ERROR + MESSAGE_NOT_FOUND, msg_num);
1092 return(om_no_such_msg);
1097 * Fetch the message from disk. If we're in sooper-fast headers
1098 * only mode, request that we don't even bother loading the body
1101 if (headers_only == HEADERS_FAST) {
1102 TheMessage = CtdlFetchMessage(msg_num, 0);
1105 TheMessage = CtdlFetchMessage(msg_num, 1);
1108 if (TheMessage == NULL) {
1109 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1110 ERROR + MESSAGE_NOT_FOUND, msg_num);
1111 return(om_no_such_msg);
1114 retcode = CtdlOutputPreLoadedMsg(
1115 TheMessage, msg_num, mode,
1116 headers_only, do_proto, crlf);
1118 CtdlFreeMessage(TheMessage);
1125 * Get a message off disk. (returns om_* values found in msgbase.h)
1128 int CtdlOutputPreLoadedMsg(struct CtdlMessage *TheMessage,
1130 int mode, /* how would you like that message? */
1131 int headers_only, /* eschew the message body? */
1132 int do_proto, /* do Citadel protocol responses? */
1133 int crlf /* Use CRLF newlines instead of LF? */
1139 char display_name[SIZ];
1141 char *nl; /* newline string */
1143 int subject_found = 0;
1145 /* buffers needed for RFC822 translation */
1152 char datestamp[SIZ];
1155 snprintf(mid, sizeof mid, "%ld", msg_num);
1156 nl = (crlf ? "\r\n" : "\n");
1158 if (!is_valid_message(TheMessage)) {
1159 lprintf(CTDL_ERR, "ERROR: invalid preloaded message for output\n");
1160 return(om_no_such_msg);
1163 /* Are we downloading a MIME component? */
1164 if (mode == MT_DOWNLOAD) {
1165 if (TheMessage->cm_format_type != FMT_RFC822) {
1167 cprintf("%d This is not a MIME message.\n",
1168 ERROR + ILLEGAL_VALUE);
1169 } else if (CC->download_fp != NULL) {
1170 if (do_proto) cprintf(
1171 "%d You already have a download open.\n",
1172 ERROR + RESOURCE_BUSY);
1174 /* Parse the message text component */
1175 mptr = TheMessage->cm_fields['M'];
1176 mime_parser(mptr, NULL,
1177 *mime_download, NULL, NULL,
1179 /* If there's no file open by this time, the requested
1180 * section wasn't found, so print an error
1182 if (CC->download_fp == NULL) {
1183 if (do_proto) cprintf(
1184 "%d Section %s not found.\n",
1185 ERROR + FILE_NOT_FOUND,
1189 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1192 /* now for the user-mode message reading loops */
1193 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1195 /* Does the caller want to skip the headers? */
1196 if (headers_only == HEADERS_NONE) goto START_TEXT;
1198 /* Tell the client which format type we're using. */
1199 if ( (mode == MT_CITADEL) && (do_proto) ) {
1200 cprintf("type=%d\n", TheMessage->cm_format_type);
1203 /* nhdr=yes means that we're only displaying headers, no body */
1204 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1205 && (mode == MT_CITADEL)
1208 cprintf("nhdr=yes\n");
1211 /* begin header processing loop for Citadel message format */
1213 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1215 strcpy(display_name, "<unknown>");
1216 if (TheMessage->cm_fields['A']) {
1217 strcpy(buf, TheMessage->cm_fields['A']);
1218 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1219 strcpy(display_name, "****");
1221 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1222 strcpy(display_name, "anonymous");
1225 strcpy(display_name, buf);
1227 if ((is_room_aide())
1228 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1229 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1230 size_t tmp = strlen(display_name);
1231 snprintf(&display_name[tmp],
1232 sizeof display_name - tmp,
1237 /* Don't show Internet address for users on the
1238 * local Citadel network.
1241 if (TheMessage->cm_fields['N'] != NULL)
1242 if (strlen(TheMessage->cm_fields['N']) > 0)
1243 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1247 /* Now spew the header fields in the order we like them. */
1248 strcpy(allkeys, FORDER);
1249 for (i=0; i<strlen(allkeys); ++i) {
1250 k = (int) allkeys[i];
1252 if ( (TheMessage->cm_fields[k] != NULL)
1253 && (msgkeys[k] != NULL) ) {
1255 if (do_proto) cprintf("%s=%s\n",
1259 else if ((k == 'F') && (suppress_f)) {
1262 /* Masquerade display name if needed */
1264 if (do_proto) cprintf("%s=%s\n",
1266 TheMessage->cm_fields[k]
1275 /* begin header processing loop for RFC822 transfer format */
1280 strcpy(snode, NODENAME);
1281 strcpy(lnode, HUMANNODE);
1282 if (mode == MT_RFC822) {
1283 cprintf("X-UIDL: %ld%s", msg_num, nl);
1284 for (i = 0; i < 256; ++i) {
1285 if (TheMessage->cm_fields[i]) {
1286 mptr = TheMessage->cm_fields[i];
1289 strcpy(luser, mptr);
1290 strcpy(suser, mptr);
1293 "Path:" removed for now because it confuses brain-dead Microsoft shitware
1294 into thinking that mail messages are newsgroup messages instead. When we
1295 add NNTP support back into Citadel we'll have to add code to only output
1296 this field when appropriate.
1297 else if (i == 'P') {
1298 cprintf("Path: %s%s", mptr, nl);
1301 else if (i == 'U') {
1302 cprintf("Subject: %s%s", mptr, nl);
1306 safestrncpy(mid, mptr, sizeof mid);
1308 safestrncpy(lnode, mptr, sizeof lnode);
1310 safestrncpy(fuser, mptr, sizeof fuser);
1312 cprintf("X-Citadel-Room: %s%s",
1315 safestrncpy(snode, mptr, sizeof snode);
1317 cprintf("To: %s%s", mptr, nl);
1318 else if (i == 'T') {
1319 datestring(datestamp, sizeof datestamp,
1320 atol(mptr), DATESTRING_RFC822);
1321 cprintf("Date: %s%s", datestamp, nl);
1325 if (subject_found == 0) {
1326 cprintf("Subject: (no subject)%s", nl);
1330 for (i=0; i<strlen(suser); ++i) {
1331 suser[i] = tolower(suser[i]);
1332 if (!isalnum(suser[i])) suser[i]='_';
1335 if (mode == MT_RFC822) {
1336 if (!strcasecmp(snode, NODENAME)) {
1337 strcpy(snode, FQDN);
1340 /* Construct a fun message id */
1341 cprintf("Message-ID: <%s", mid);
1342 if (strchr(mid, '@')==NULL) {
1343 cprintf("@%s", snode);
1347 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1348 cprintf("From: x@x.org (----)%s", nl);
1350 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1351 cprintf("From: x@x.org (anonymous)%s", nl);
1353 else if (strlen(fuser) > 0) {
1354 cprintf("From: %s (%s)%s", fuser, luser, nl);
1357 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1360 cprintf("Organization: %s%s", lnode, nl);
1362 /* Blank line signifying RFC822 end-of-headers */
1363 if (TheMessage->cm_format_type != FMT_RFC822) {
1368 /* end header processing loop ... at this point, we're in the text */
1370 if (headers_only == HEADERS_FAST) goto DONE;
1371 mptr = TheMessage->cm_fields['M'];
1373 /* Tell the client about the MIME parts in this message */
1374 if (TheMessage->cm_format_type == FMT_RFC822) {
1375 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1376 mime_parser(mptr, NULL,
1382 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1383 /* FIXME ... we have to put some code in here to avoid
1384 * printing duplicate header information when both
1385 * Citadel and RFC822 headers exist. Preference should
1386 * probably be given to the RFC822 headers.
1388 int done_rfc822_hdrs = 0;
1389 while (ch=*(mptr++), ch!=0) {
1394 if (!done_rfc822_hdrs) {
1395 if (headers_only != HEADERS_NONE) {
1400 if (headers_only != HEADERS_ONLY) {
1404 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1405 done_rfc822_hdrs = 1;
1409 if (done_rfc822_hdrs) {
1410 if (headers_only != HEADERS_NONE) {
1415 if (headers_only != HEADERS_ONLY) {
1419 if ((*mptr == 13) || (*mptr == 10)) {
1420 done_rfc822_hdrs = 1;
1428 if (headers_only == HEADERS_ONLY) {
1432 /* signify start of msg text */
1433 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1434 if (do_proto) cprintf("text\n");
1437 /* If the format type on disk is 1 (fixed-format), then we want
1438 * everything to be output completely literally ... regardless of
1439 * what message transfer format is in use.
1441 if (TheMessage->cm_format_type == FMT_FIXED) {
1442 if (mode == MT_MIME) {
1443 cprintf("Content-type: text/plain\n\n");
1446 while (ch = *mptr++, ch > 0) {
1449 if ((ch == 10) || (strlen(buf) > 250)) {
1450 cprintf("%s%s", buf, nl);
1453 buf[strlen(buf) + 1] = 0;
1454 buf[strlen(buf)] = ch;
1457 if (strlen(buf) > 0)
1458 cprintf("%s%s", buf, nl);
1461 /* If the message on disk is format 0 (Citadel vari-format), we
1462 * output using the formatter at 80 columns. This is the final output
1463 * form if the transfer format is RFC822, but if the transfer format
1464 * is Citadel proprietary, it'll still work, because the indentation
1465 * for new paragraphs is correct and the client will reformat the
1466 * message to the reader's screen width.
1468 if (TheMessage->cm_format_type == FMT_CITADEL) {
1469 if (mode == MT_MIME) {
1470 cprintf("Content-type: text/x-citadel-variformat\n\n");
1472 memfmout(80, mptr, 0, nl);
1475 /* If the message on disk is format 4 (MIME), we've gotta hand it
1476 * off to the MIME parser. The client has already been told that
1477 * this message is format 1 (fixed format), so the callback function
1478 * we use will display those parts as-is.
1480 if (TheMessage->cm_format_type == FMT_RFC822) {
1481 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1482 memset(ma, 0, sizeof(struct ma_info));
1484 if (mode == MT_MIME) {
1485 strcpy(ma->chosen_part, "1");
1486 mime_parser(mptr, NULL,
1487 *choose_preferred, *fixed_output_pre,
1488 *fixed_output_post, NULL, 0);
1489 mime_parser(mptr, NULL,
1490 *output_preferred, NULL, NULL, NULL, 0);
1493 mime_parser(mptr, NULL,
1494 *fixed_output, *fixed_output_pre,
1495 *fixed_output_post, NULL, 0);
1499 DONE: /* now we're done */
1500 if (do_proto) cprintf("000\n");
1507 * display a message (mode 0 - Citadel proprietary)
1509 void cmd_msg0(char *cmdbuf)
1512 int headers_only = HEADERS_ALL;
1514 msgid = extract_long(cmdbuf, 0);
1515 headers_only = extract_int(cmdbuf, 1);
1517 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1523 * display a message (mode 2 - RFC822)
1525 void cmd_msg2(char *cmdbuf)
1528 int headers_only = HEADERS_ALL;
1530 msgid = extract_long(cmdbuf, 0);
1531 headers_only = extract_int(cmdbuf, 1);
1533 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1539 * display a message (mode 3 - IGnet raw format - internal programs only)
1541 void cmd_msg3(char *cmdbuf)
1544 struct CtdlMessage *msg;
1547 if (CC->internal_pgm == 0) {
1548 cprintf("%d This command is for internal programs only.\n",
1549 ERROR + HIGHER_ACCESS_REQUIRED);
1553 msgnum = extract_long(cmdbuf, 0);
1554 msg = CtdlFetchMessage(msgnum, 1);
1556 cprintf("%d Message %ld not found.\n",
1557 ERROR + MESSAGE_NOT_FOUND, msgnum);
1561 serialize_message(&smr, msg);
1562 CtdlFreeMessage(msg);
1565 cprintf("%d Unable to serialize message\n",
1566 ERROR + INTERNAL_ERROR);
1570 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1571 client_write(smr.ser, smr.len);
1578 * Display a message using MIME content types
1580 void cmd_msg4(char *cmdbuf)
1584 msgid = extract_long(cmdbuf, 0);
1585 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1591 * Client tells us its preferred message format(s)
1593 void cmd_msgp(char *cmdbuf)
1595 safestrncpy(CC->preferred_formats, cmdbuf,
1596 sizeof(CC->preferred_formats));
1597 cprintf("%d ok\n", CIT_OK);
1602 * Open a component of a MIME message as a download file
1604 void cmd_opna(char *cmdbuf)
1608 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1610 msgid = extract_long(cmdbuf, 0);
1611 extract(desired_section, cmdbuf, 1);
1613 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1618 * Save a message pointer into a specified room
1619 * (Returns 0 for success, nonzero for failure)
1620 * roomname may be NULL to use the current room
1622 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1624 char hold_rm[ROOMNAMELEN];
1625 struct cdbdata *cdbfr;
1628 long highest_msg = 0L;
1629 struct CtdlMessage *msg = NULL;
1631 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1632 roomname, msgid, flags);
1634 strcpy(hold_rm, CC->room.QRname);
1636 /* We may need to check to see if this message is real */
1637 if ( (flags & SM_VERIFY_GOODNESS)
1638 || (flags & SM_DO_REPL_CHECK)
1640 msg = CtdlFetchMessage(msgid, 1);
1641 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1644 /* Perform replication checks if necessary */
1645 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1647 if (getroom(&CC->room,
1648 ((roomname != NULL) ? roomname : CC->room.QRname) )
1650 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1651 if (msg != NULL) CtdlFreeMessage(msg);
1652 return(ERROR + ROOM_NOT_FOUND);
1655 if (ReplicationChecks(msg) != 0) {
1656 getroom(&CC->room, hold_rm);
1657 if (msg != NULL) CtdlFreeMessage(msg);
1658 lprintf(CTDL_DEBUG, "Did replication, and newer exists\n");
1663 /* Now the regular stuff */
1664 if (lgetroom(&CC->room,
1665 ((roomname != NULL) ? roomname : CC->room.QRname) )
1667 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1668 if (msg != NULL) CtdlFreeMessage(msg);
1669 return(ERROR + ROOM_NOT_FOUND);
1672 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1673 if (cdbfr == NULL) {
1677 msglist = malloc(cdbfr->len);
1678 if (msglist == NULL)
1679 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1680 num_msgs = cdbfr->len / sizeof(long);
1681 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1686 /* Make sure the message doesn't already exist in this room. It
1687 * is absolutely taboo to have more than one reference to the same
1688 * message in a room.
1690 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1691 if (msglist[i] == msgid) {
1692 lputroom(&CC->room); /* unlock the room */
1693 getroom(&CC->room, hold_rm);
1694 if (msg != NULL) CtdlFreeMessage(msg);
1696 return(ERROR + ALREADY_EXISTS);
1700 /* Now add the new message */
1702 msglist = realloc(msglist,
1703 (num_msgs * sizeof(long)));
1705 if (msglist == NULL) {
1706 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1708 msglist[num_msgs - 1] = msgid;
1710 /* Sort the message list, so all the msgid's are in order */
1711 num_msgs = sort_msglist(msglist, num_msgs);
1713 /* Determine the highest message number */
1714 highest_msg = msglist[num_msgs - 1];
1716 /* Write it back to disk. */
1717 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long),
1718 msglist, num_msgs * sizeof(long));
1720 /* Free up the memory we used. */
1723 /* Update the highest-message pointer and unlock the room. */
1724 CC->room.QRhighest = highest_msg;
1725 lputroom(&CC->room);
1726 getroom(&CC->room, hold_rm);
1728 /* Bump the reference count for this message. */
1729 if ((flags & SM_DONT_BUMP_REF)==0) {
1730 AdjRefCount(msgid, +1);
1733 /* Return success. */
1734 if (msg != NULL) CtdlFreeMessage(msg);
1741 * Message base operation to send a message to the master file
1742 * (returns new message number)
1744 * This is the back end for CtdlSubmitMsg() and should not be directly
1745 * called by server-side modules.
1748 long send_message(struct CtdlMessage *msg) {
1756 /* Get a new message number */
1757 newmsgid = get_new_message_number();
1758 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1760 /* Generate an ID if we don't have one already */
1761 if (msg->cm_fields['I']==NULL) {
1762 msg->cm_fields['I'] = strdup(msgidbuf);
1765 /* If the message is big, set its body aside for storage elsewhere */
1766 if (msg->cm_fields['M'] != NULL) {
1767 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1769 holdM = msg->cm_fields['M'];
1770 msg->cm_fields['M'] = NULL;
1774 /* Serialize our data structure for storage in the database */
1775 serialize_message(&smr, msg);
1778 msg->cm_fields['M'] = holdM;
1782 cprintf("%d Unable to serialize message\n",
1783 ERROR + INTERNAL_ERROR);
1787 /* Write our little bundle of joy into the message base */
1788 if (cdb_store(CDB_MSGMAIN, &newmsgid, sizeof(long),
1789 smr.ser, smr.len) < 0) {
1790 lprintf(CTDL_ERR, "Can't store message\n");
1794 cdb_store(CDB_BIGMSGS, &newmsgid, sizeof(long),
1795 holdM, strlen(holdM) );
1800 /* Free the memory we used for the serialized message */
1803 /* Return the *local* message ID to the caller
1804 * (even if we're storing an incoming network message)
1812 * Serialize a struct CtdlMessage into the format used on disk and network.
1814 * This function loads up a "struct ser_ret" (defined in server.h) which
1815 * contains the length of the serialized message and a pointer to the
1816 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1818 void serialize_message(struct ser_ret *ret, /* return values */
1819 struct CtdlMessage *msg) /* unserialized msg */
1823 static char *forder = FORDER;
1825 if (is_valid_message(msg) == 0) return; /* self check */
1828 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1829 ret->len = ret->len +
1830 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1832 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1833 ret->ser = malloc(ret->len);
1834 if (ret->ser == NULL) {
1840 ret->ser[1] = msg->cm_anon_type;
1841 ret->ser[2] = msg->cm_format_type;
1844 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1845 ret->ser[wlen++] = (char)forder[i];
1846 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1847 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1849 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1850 (long)ret->len, (long)wlen);
1858 * Back end for the ReplicationChecks() function
1860 void check_repl(long msgnum, void *userdata) {
1861 struct CtdlMessage *msg;
1862 time_t timestamp = (-1L);
1864 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1865 msg = CtdlFetchMessage(msgnum, 1);
1866 if (msg == NULL) return;
1867 if (msg->cm_fields['T'] != NULL) {
1868 timestamp = atol(msg->cm_fields['T']);
1870 CtdlFreeMessage(msg);
1872 if (timestamp > msg_repl->highest) {
1873 msg_repl->highest = timestamp; /* newer! */
1874 lprintf(CTDL_DEBUG, "newer!\n");
1877 lprintf(CTDL_DEBUG, "older!\n");
1879 /* Existing isn't newer? Then delete the old one(s). */
1880 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1885 * Check to see if any messages already exist which carry the same Extended ID
1889 * -> With older timestamps: delete them and return 0. Message will be saved.
1890 * -> With newer timestamps: return 1. Message save will be aborted.
1892 int ReplicationChecks(struct CtdlMessage *msg) {
1893 struct CtdlMessage *template;
1896 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1897 /* No extended id? Don't do anything. */
1898 if (msg->cm_fields['E'] == NULL) return 0;
1899 if (strlen(msg->cm_fields['E']) == 0) return 0;
1900 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1902 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1903 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1904 msg_repl->highest = atol(msg->cm_fields['T']);
1906 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1907 memset(template, 0, sizeof(struct CtdlMessage));
1908 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1910 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1912 /* If a newer message exists with the same Extended ID, abort
1915 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1919 CtdlFreeMessage(template);
1920 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1928 * Save a message to disk and submit it into the delivery system.
1930 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1931 struct recptypes *recps, /* recipients (if mail) */
1932 char *force /* force a particular room? */
1935 char hold_rm[ROOMNAMELEN];
1936 char actual_rm[ROOMNAMELEN];
1937 char force_room[ROOMNAMELEN];
1938 char content_type[SIZ]; /* We have to learn this */
1939 char recipient[SIZ];
1942 struct ctdluser userbuf;
1944 struct MetaData smi;
1945 FILE *network_fp = NULL;
1946 static int seqnum = 1;
1947 struct CtdlMessage *imsg = NULL;
1950 char *hold_R, *hold_D;
1952 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1953 if (is_valid_message(msg) == 0) return(-1); /* self check */
1955 /* If this message has no timestamp, we take the liberty of
1956 * giving it one, right now.
1958 if (msg->cm_fields['T'] == NULL) {
1959 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1960 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1961 msg->cm_fields['T'] = strdup(aaa);
1964 /* If this message has no path, we generate one.
1966 if (msg->cm_fields['P'] == NULL) {
1967 lprintf(CTDL_DEBUG, "Generating path\n");
1968 if (msg->cm_fields['A'] != NULL) {
1969 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1970 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1971 if (isspace(msg->cm_fields['P'][a])) {
1972 msg->cm_fields['P'][a] = ' ';
1977 msg->cm_fields['P'] = strdup("unknown");
1981 if (force == NULL) {
1982 strcpy(force_room, "");
1985 strcpy(force_room, force);
1988 /* Learn about what's inside, because it's what's inside that counts */
1989 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1990 if (msg->cm_fields['M'] == NULL) {
1991 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1995 switch (msg->cm_format_type) {
1997 strcpy(content_type, "text/x-citadel-variformat");
2000 strcpy(content_type, "text/plain");
2003 strcpy(content_type, "text/plain");
2004 /* advance past header fields */
2005 mptr = msg->cm_fields['M'];
2008 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2009 safestrncpy(content_type, mptr,
2010 sizeof(content_type));
2011 strcpy(content_type, &content_type[14]);
2012 for (a = 0; a < strlen(content_type); ++a)
2013 if ((content_type[a] == ';')
2014 || (content_type[a] == ' ')
2015 || (content_type[a] == 13)
2016 || (content_type[a] == 10))
2017 content_type[a] = 0;
2024 /* Goto the correct room */
2025 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2026 strcpy(hold_rm, CC->room.QRname);
2027 strcpy(actual_rm, CC->room.QRname);
2028 if (recps != NULL) {
2029 strcpy(actual_rm, SENTITEMS);
2032 /* If the user is a twit, move to the twit room for posting */
2033 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2034 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2036 if (CC->user.axlevel == 2) {
2037 strcpy(hold_rm, actual_rm);
2038 strcpy(actual_rm, config.c_twitroom);
2042 /* ...or if this message is destined for Aide> then go there. */
2043 if (strlen(force_room) > 0) {
2044 strcpy(actual_rm, force_room);
2047 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2048 if (strcasecmp(actual_rm, CC->room.QRname)) {
2049 getroom(&CC->room, actual_rm);
2053 * If this message has no O (room) field, generate one.
2055 if (msg->cm_fields['O'] == NULL) {
2056 msg->cm_fields['O'] = strdup(CC->room.QRname);
2059 /* Perform "before save" hooks (aborting if any return nonzero) */
2060 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2061 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2063 /* If this message has an Extended ID, perform replication checks */
2064 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2065 if (ReplicationChecks(msg) > 0) return(-1);
2067 /* Save it to disk */
2068 lprintf(CTDL_DEBUG, "Saving to disk\n");
2069 newmsgid = send_message(msg);
2070 if (newmsgid <= 0L) return(-1);
2072 /* Write a supplemental message info record. This doesn't have to
2073 * be a critical section because nobody else knows about this message
2076 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2077 memset(&smi, 0, sizeof(struct MetaData));
2078 smi.meta_msgnum = newmsgid;
2079 smi.meta_refcount = 0;
2080 safestrncpy(smi.meta_content_type, content_type, 64);
2083 /* Now figure out where to store the pointers */
2084 lprintf(CTDL_DEBUG, "Storing pointers\n");
2086 /* If this is being done by the networker delivering a private
2087 * message, we want to BYPASS saving the sender's copy (because there
2088 * is no local sender; it would otherwise go to the Trashcan).
2090 if ((!CC->internal_pgm) || (recps == NULL)) {
2091 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2092 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2093 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2097 /* For internet mail, drop a copy in the outbound queue room */
2099 if (recps->num_internet > 0) {
2100 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2103 /* If other rooms are specified, drop them there too. */
2105 if (recps->num_room > 0)
2106 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2107 extract(recipient, recps->recp_room, i);
2108 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2109 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2112 /* Bump this user's messages posted counter. */
2113 lprintf(CTDL_DEBUG, "Updating user\n");
2114 lgetuser(&CC->user, CC->curr_user);
2115 CC->user.posted = CC->user.posted + 1;
2116 lputuser(&CC->user);
2118 /* If this is private, local mail, make a copy in the
2119 * recipient's mailbox and bump the reference count.
2122 if (recps->num_local > 0)
2123 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2124 extract(recipient, recps->recp_local, i);
2125 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2127 if (getuser(&userbuf, recipient) == 0) {
2128 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2129 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2130 BumpNewMailCounter(userbuf.usernum);
2133 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2134 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2138 /* Perform "after save" hooks */
2139 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2140 PerformMessageHooks(msg, EVT_AFTERSAVE);
2142 /* For IGnet mail, we have to save a new copy into the spooler for
2143 * each recipient, with the R and D fields set to the recipient and
2144 * destination-node. This has two ugly side effects: all other
2145 * recipients end up being unlisted in this recipient's copy of the
2146 * message, and it has to deliver multiple messages to the same
2147 * node. We'll revisit this again in a year or so when everyone has
2148 * a network spool receiver that can handle the new style messages.
2151 if (recps->num_ignet > 0)
2152 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2153 extract(recipient, recps->recp_ignet, i);
2155 hold_R = msg->cm_fields['R'];
2156 hold_D = msg->cm_fields['D'];
2157 msg->cm_fields['R'] = malloc(SIZ);
2158 msg->cm_fields['D'] = malloc(SIZ);
2159 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2160 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2162 serialize_message(&smr, msg);
2164 snprintf(aaa, sizeof aaa,
2165 "./network/spoolin/netmail.%04lx.%04x.%04x",
2166 (long) getpid(), CC->cs_pid, ++seqnum);
2167 network_fp = fopen(aaa, "wb+");
2168 if (network_fp != NULL) {
2169 fwrite(smr.ser, smr.len, 1, network_fp);
2175 free(msg->cm_fields['R']);
2176 free(msg->cm_fields['D']);
2177 msg->cm_fields['R'] = hold_R;
2178 msg->cm_fields['D'] = hold_D;
2181 /* Go back to the room we started from */
2182 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2183 if (strcasecmp(hold_rm, CC->room.QRname))
2184 getroom(&CC->room, hold_rm);
2186 /* For internet mail, generate delivery instructions.
2187 * Yes, this is recursive. Deal with it. Infinite recursion does
2188 * not happen because the delivery instructions message does not
2189 * contain a recipient.
2192 if (recps->num_internet > 0) {
2193 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2194 instr = malloc(SIZ * 2);
2195 snprintf(instr, SIZ * 2,
2196 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2198 SPOOLMIME, newmsgid, (long)time(NULL),
2199 msg->cm_fields['A'], msg->cm_fields['N']
2202 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2203 size_t tmp = strlen(instr);
2204 extract(recipient, recps->recp_internet, i);
2205 snprintf(&instr[tmp], SIZ * 2 - tmp,
2206 "remote|%s|0||\n", recipient);
2209 imsg = malloc(sizeof(struct CtdlMessage));
2210 memset(imsg, 0, sizeof(struct CtdlMessage));
2211 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2212 imsg->cm_anon_type = MES_NORMAL;
2213 imsg->cm_format_type = FMT_RFC822;
2214 imsg->cm_fields['A'] = strdup("Citadel");
2215 imsg->cm_fields['M'] = instr;
2216 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2217 CtdlFreeMessage(imsg);
2226 * Convenience function for generating small administrative messages.
2228 void quickie_message(char *from, char *to, char *room, char *text,
2229 int format_type, char *subject)
2231 struct CtdlMessage *msg;
2232 struct recptypes *recp = NULL;
2234 msg = malloc(sizeof(struct CtdlMessage));
2235 memset(msg, 0, sizeof(struct CtdlMessage));
2236 msg->cm_magic = CTDLMESSAGE_MAGIC;
2237 msg->cm_anon_type = MES_NORMAL;
2238 msg->cm_format_type = format_type;
2239 msg->cm_fields['A'] = strdup(from);
2240 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2241 msg->cm_fields['N'] = strdup(NODENAME);
2243 msg->cm_fields['R'] = strdup(to);
2244 recp = validate_recipients(to);
2246 if (subject != NULL) {
2247 msg->cm_fields['U'] = strdup(subject);
2249 msg->cm_fields['M'] = strdup(text);
2251 CtdlSubmitMsg(msg, recp, room);
2252 CtdlFreeMessage(msg);
2253 if (recp != NULL) free(recp);
2259 * Back end function used by CtdlMakeMessage() and similar functions
2261 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2262 size_t maxlen, /* maximum message length */
2263 char *exist, /* if non-null, append to it;
2264 exist is ALWAYS freed */
2265 int crlf /* CRLF newlines instead of LF */
2269 size_t message_len = 0;
2270 size_t buffer_len = 0;
2276 if (exist == NULL) {
2283 message_len = strlen(exist);
2284 buffer_len = message_len + 4096;
2285 m = realloc(exist, buffer_len);
2292 /* flush the input if we have nowhere to store it */
2297 /* read in the lines of message text one by one */
2299 if (client_gets(buf) < 1) finished = 1;
2300 if (!strcmp(buf, terminator)) finished = 1;
2302 strcat(buf, "\r\n");
2308 if ( (!flushing) && (!finished) ) {
2309 /* Measure the line */
2310 linelen = strlen(buf);
2312 /* augment the buffer if we have to */
2313 if ((message_len + linelen) >= buffer_len) {
2314 ptr = realloc(m, (buffer_len * 2) );
2315 if (ptr == NULL) { /* flush if can't allocate */
2318 buffer_len = (buffer_len * 2);
2320 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2324 /* Add the new line to the buffer. NOTE: this loop must avoid
2325 * using functions like strcat() and strlen() because they
2326 * traverse the entire buffer upon every call, and doing that
2327 * for a multi-megabyte message slows it down beyond usability.
2329 strcpy(&m[message_len], buf);
2330 message_len += linelen;
2333 /* if we've hit the max msg length, flush the rest */
2334 if (message_len >= maxlen) flushing = 1;
2336 } while (!finished);
2344 * Build a binary message to be saved on disk.
2345 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2346 * will become part of the message. This means you are no longer
2347 * responsible for managing that memory -- it will be freed along with
2348 * the rest of the fields when CtdlFreeMessage() is called.)
2351 struct CtdlMessage *CtdlMakeMessage(
2352 struct ctdluser *author, /* author's user structure */
2353 char *recipient, /* NULL if it's not mail */
2354 char *room, /* room where it's going */
2355 int type, /* see MES_ types in header file */
2356 int format_type, /* variformat, plain text, MIME... */
2357 char *fake_name, /* who we're masquerading as */
2358 char *subject, /* Subject (optional) */
2359 char *preformatted_text /* ...or NULL to read text from client */
2361 char dest_node[SIZ];
2363 struct CtdlMessage *msg;
2365 msg = malloc(sizeof(struct CtdlMessage));
2366 memset(msg, 0, sizeof(struct CtdlMessage));
2367 msg->cm_magic = CTDLMESSAGE_MAGIC;
2368 msg->cm_anon_type = type;
2369 msg->cm_format_type = format_type;
2371 /* Don't confuse the poor folks if it's not routed mail. */
2372 strcpy(dest_node, "");
2376 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2377 msg->cm_fields['P'] = strdup(buf);
2379 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2380 msg->cm_fields['T'] = strdup(buf);
2382 if (fake_name[0]) /* author */
2383 msg->cm_fields['A'] = strdup(fake_name);
2385 msg->cm_fields['A'] = strdup(author->fullname);
2387 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2388 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2391 msg->cm_fields['O'] = strdup(CC->room.QRname);
2394 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2395 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2397 if (recipient[0] != 0) {
2398 msg->cm_fields['R'] = strdup(recipient);
2400 if (dest_node[0] != 0) {
2401 msg->cm_fields['D'] = strdup(dest_node);
2404 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2405 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2408 if (subject != NULL) {
2410 if (strlen(subject) > 0) {
2411 msg->cm_fields['U'] = strdup(subject);
2415 if (preformatted_text != NULL) {
2416 msg->cm_fields['M'] = preformatted_text;
2419 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2420 config.c_maxmsglen, NULL, 0);
2428 * Check to see whether we have permission to post a message in the current
2429 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2430 * returns 0 on success.
2432 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2434 if (!(CC->logged_in)) {
2435 snprintf(errmsgbuf, n, "Not logged in.");
2436 return (ERROR + NOT_LOGGED_IN);
2439 if ((CC->user.axlevel < 2)
2440 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2441 snprintf(errmsgbuf, n, "Need to be validated to enter "
2442 "(except in %s> to sysop)", MAILROOM);
2443 return (ERROR + HIGHER_ACCESS_REQUIRED);
2446 if ((CC->user.axlevel < 4)
2447 && (CC->room.QRflags & QR_NETWORK)) {
2448 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2449 return (ERROR + HIGHER_ACCESS_REQUIRED);
2452 if ((CC->user.axlevel < 6)
2453 && (CC->room.QRflags & QR_READONLY)) {
2454 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2455 return (ERROR + HIGHER_ACCESS_REQUIRED);
2458 strcpy(errmsgbuf, "Ok");
2464 * Check to see if the specified user has Internet mail permission
2465 * (returns nonzero if permission is granted)
2467 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2469 /* Globally enabled? */
2470 if (config.c_restrict == 0) return(1);
2472 /* User flagged ok? */
2473 if (who->flags & US_INTERNET) return(2);
2475 /* Aide level access? */
2476 if (who->axlevel >= 6) return(3);
2478 /* No mail for you! */
2485 * Validate recipients, count delivery types and errors, and handle aliasing
2486 * FIXME check for dupes!!!!!
2488 struct recptypes *validate_recipients(char *recipients) {
2489 struct recptypes *ret;
2490 char this_recp[SIZ];
2491 char this_recp_cooked[SIZ];
2497 struct ctdluser tempUS;
2498 struct ctdlroom tempQR;
2501 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2502 if (ret == NULL) return(NULL);
2503 memset(ret, 0, sizeof(struct recptypes));
2506 ret->num_internet = 0;
2511 if (recipients == NULL) {
2514 else if (strlen(recipients) == 0) {
2518 /* Change all valid separator characters to commas */
2519 for (i=0; i<strlen(recipients); ++i) {
2520 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2521 recipients[i] = ',';
2526 num_recps = num_tokens(recipients, ',');
2529 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2530 extract_token(this_recp, recipients, i, ',');
2532 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2533 mailtype = alias(this_recp);
2534 mailtype = alias(this_recp);
2535 mailtype = alias(this_recp);
2536 for (j=0; j<=strlen(this_recp); ++j) {
2537 if (this_recp[j]=='_') {
2538 this_recp_cooked[j] = ' ';
2541 this_recp_cooked[j] = this_recp[j];
2547 if (!strcasecmp(this_recp, "sysop")) {
2549 strcpy(this_recp, config.c_aideroom);
2550 if (strlen(ret->recp_room) > 0) {
2551 strcat(ret->recp_room, "|");
2553 strcat(ret->recp_room, this_recp);
2555 else if (getuser(&tempUS, this_recp) == 0) {
2557 strcpy(this_recp, tempUS.fullname);
2558 if (strlen(ret->recp_local) > 0) {
2559 strcat(ret->recp_local, "|");
2561 strcat(ret->recp_local, this_recp);
2563 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2565 strcpy(this_recp, tempUS.fullname);
2566 if (strlen(ret->recp_local) > 0) {
2567 strcat(ret->recp_local, "|");
2569 strcat(ret->recp_local, this_recp);
2571 else if ( (!strncasecmp(this_recp, "room_", 5))
2572 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2574 if (strlen(ret->recp_room) > 0) {
2575 strcat(ret->recp_room, "|");
2577 strcat(ret->recp_room, &this_recp_cooked[5]);
2585 /* Yes, you're reading this correctly: if the target
2586 * domain points back to the local system or an attached
2587 * Citadel directory, the address is invalid. That's
2588 * because if the address were valid, we would have
2589 * already translated it to a local address by now.
2591 if (IsDirectory(this_recp)) {
2596 ++ret->num_internet;
2597 if (strlen(ret->recp_internet) > 0) {
2598 strcat(ret->recp_internet, "|");
2600 strcat(ret->recp_internet, this_recp);
2605 if (strlen(ret->recp_ignet) > 0) {
2606 strcat(ret->recp_ignet, "|");
2608 strcat(ret->recp_ignet, this_recp);
2616 if (strlen(ret->errormsg) == 0) {
2617 snprintf(append, sizeof append,
2618 "Invalid recipient: %s",
2622 snprintf(append, sizeof append,
2625 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2626 strcat(ret->errormsg, append);
2630 if (strlen(ret->display_recp) == 0) {
2631 strcpy(append, this_recp);
2634 snprintf(append, sizeof append, ", %s",
2637 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2638 strcat(ret->display_recp, append);
2643 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2644 ret->num_room + ret->num_error) == 0) {
2646 strcpy(ret->errormsg, "No recipients specified.");
2649 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2650 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2651 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2652 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2653 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2654 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2662 * message entry - mode 0 (normal)
2664 void cmd_ent0(char *entargs)
2668 char masquerade_as[SIZ];
2670 int format_type = 0;
2671 char newusername[SIZ];
2672 struct CtdlMessage *msg;
2676 struct recptypes *valid = NULL;
2679 post = extract_int(entargs, 0);
2680 extract(recp, entargs, 1);
2681 anon_flag = extract_int(entargs, 2);
2682 format_type = extract_int(entargs, 3);
2683 extract(subject, entargs, 4);
2685 /* first check to make sure the request is valid. */
2687 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2689 cprintf("%d %s\n", err, errmsg);
2693 /* Check some other permission type things. */
2696 if (CC->user.axlevel < 6) {
2697 cprintf("%d You don't have permission to masquerade.\n",
2698 ERROR + HIGHER_ACCESS_REQUIRED);
2701 extract(newusername, entargs, 5);
2702 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2703 safestrncpy(CC->fake_postname, newusername,
2704 sizeof(CC->fake_postname) );
2705 cprintf("%d ok\n", CIT_OK);
2708 CC->cs_flags |= CS_POSTING;
2710 /* In the Mail> room we have to behave a little differently --
2711 * make sure the user has specified at least one recipient. Then
2712 * validate the recipient(s).
2714 if ( (CC->room.QRflags & QR_MAILBOX)
2715 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2717 if (CC->user.axlevel < 2) {
2718 strcpy(recp, "sysop");
2721 valid = validate_recipients(recp);
2722 if (valid->num_error > 0) {
2724 ERROR + NO_SUCH_USER, valid->errormsg);
2728 if (valid->num_internet > 0) {
2729 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2730 cprintf("%d You do not have permission "
2731 "to send Internet mail.\n",
2732 ERROR + HIGHER_ACCESS_REQUIRED);
2738 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2739 && (CC->user.axlevel < 4) ) {
2740 cprintf("%d Higher access required for network mail.\n",
2741 ERROR + HIGHER_ACCESS_REQUIRED);
2746 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2747 && ((CC->user.flags & US_INTERNET) == 0)
2748 && (!CC->internal_pgm)) {
2749 cprintf("%d You don't have access to Internet mail.\n",
2750 ERROR + HIGHER_ACCESS_REQUIRED);
2757 /* Is this a room which has anonymous-only or anonymous-option? */
2758 anonymous = MES_NORMAL;
2759 if (CC->room.QRflags & QR_ANONONLY) {
2760 anonymous = MES_ANONONLY;
2762 if (CC->room.QRflags & QR_ANONOPT) {
2763 if (anon_flag == 1) { /* only if the user requested it */
2764 anonymous = MES_ANONOPT;
2768 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2772 /* If we're only checking the validity of the request, return
2773 * success without creating the message.
2776 cprintf("%d %s\n", CIT_OK,
2777 ((valid != NULL) ? valid->display_recp : "") );
2782 /* Handle author masquerading */
2783 if (CC->fake_postname[0]) {
2784 strcpy(masquerade_as, CC->fake_postname);
2786 else if (CC->fake_username[0]) {
2787 strcpy(masquerade_as, CC->fake_username);
2790 strcpy(masquerade_as, "");
2793 /* Read in the message from the client. */
2794 cprintf("%d send message\n", SEND_LISTING);
2795 msg = CtdlMakeMessage(&CC->user, recp,
2796 CC->room.QRname, anonymous, format_type,
2797 masquerade_as, subject, NULL);
2800 CtdlSubmitMsg(msg, valid, "");
2801 CtdlFreeMessage(msg);
2803 CC->fake_postname[0] = '\0';
2811 * API function to delete messages which match a set of criteria
2812 * (returns the actual number of messages deleted)
2814 int CtdlDeleteMessages(char *room_name, /* which room */
2815 long dmsgnum, /* or "0" for any */
2816 char *content_type /* or "" for any */
2820 struct ctdlroom qrbuf;
2821 struct cdbdata *cdbfr;
2822 long *msglist = NULL;
2823 long *dellist = NULL;
2826 int num_deleted = 0;
2828 struct MetaData smi;
2830 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2831 room_name, dmsgnum, content_type);
2833 /* get room record, obtaining a lock... */
2834 if (lgetroom(&qrbuf, room_name) != 0) {
2835 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2837 return (0); /* room not found */
2839 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2841 if (cdbfr != NULL) {
2842 msglist = malloc(cdbfr->len);
2843 dellist = malloc(cdbfr->len);
2844 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2845 num_msgs = cdbfr->len / sizeof(long);
2849 for (i = 0; i < num_msgs; ++i) {
2852 /* Set/clear a bit for each criterion */
2854 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2855 delete_this |= 0x01;
2857 if (strlen(content_type) == 0) {
2858 delete_this |= 0x02;
2860 GetMetaData(&smi, msglist[i]);
2861 if (!strcasecmp(smi.meta_content_type,
2863 delete_this |= 0x02;
2867 /* Delete message only if all bits are set */
2868 if (delete_this == 0x03) {
2869 dellist[num_deleted++] = msglist[i];
2874 num_msgs = sort_msglist(msglist, num_msgs);
2875 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2876 msglist, (num_msgs * sizeof(long)));
2878 qrbuf.QRhighest = msglist[num_msgs - 1];
2882 /* Go through the messages we pulled out of the index, and decrement
2883 * their reference counts by 1. If this is the only room the message
2884 * was in, the reference count will reach zero and the message will
2885 * automatically be deleted from the database. We do this in a
2886 * separate pass because there might be plug-in hooks getting called,
2887 * and we don't want that happening during an S_ROOMS critical
2890 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2891 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2892 AdjRefCount(dellist[i], -1);
2895 /* Now free the memory we used, and go away. */
2896 if (msglist != NULL) free(msglist);
2897 if (dellist != NULL) free(dellist);
2898 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2899 return (num_deleted);
2905 * Check whether the current user has permission to delete messages from
2906 * the current room (returns 1 for yes, 0 for no)
2908 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2909 getuser(&CC->user, CC->curr_user);
2910 if ((CC->user.axlevel < 6)
2911 && (CC->user.usernum != CC->room.QRroomaide)
2912 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2913 && (!(CC->internal_pgm))) {
2922 * Delete message from current room
2924 void cmd_dele(char *delstr)
2929 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2930 cprintf("%d Higher access required.\n",
2931 ERROR + HIGHER_ACCESS_REQUIRED);
2934 delnum = extract_long(delstr, 0);
2936 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2939 cprintf("%d %d message%s deleted.\n", CIT_OK,
2940 num_deleted, ((num_deleted != 1) ? "s" : ""));
2942 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2948 * Back end API function for moves and deletes
2950 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2953 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2954 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2955 if (err != 0) return(err);
2963 * move or copy a message to another room
2965 void cmd_move(char *args)
2969 struct ctdlroom qtemp;
2975 num = extract_long(args, 0);
2976 extract(targ, args, 1);
2977 targ[ROOMNAMELEN - 1] = 0;
2978 is_copy = extract_int(args, 2);
2980 if (getroom(&qtemp, targ) != 0) {
2981 cprintf("%d '%s' does not exist.\n",
2982 ERROR + ROOM_NOT_FOUND, targ);
2986 getuser(&CC->user, CC->curr_user);
2987 ra = CtdlRoomAccess(&qtemp, &CC->user);
2989 /* Check for permission to perform this operation.
2990 * Remember: "CC->room" is source, "qtemp" is target.
2994 /* Aides can move/copy */
2995 if (CC->user.axlevel >= 6) permit = 1;
2997 /* Room aides can move/copy */
2998 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3000 /* Permit move/copy from personal rooms */
3001 if ((CC->room.QRflags & QR_MAILBOX)
3002 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3004 /* Permit only copy from public to personal room */
3006 && (!(CC->room.QRflags & QR_MAILBOX))
3007 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3009 /* User must have access to target room */
3010 if (!(ra & UA_KNOWN)) permit = 0;
3013 cprintf("%d Higher access required.\n",
3014 ERROR + HIGHER_ACCESS_REQUIRED);
3018 err = CtdlCopyMsgToRoom(num, targ);
3020 cprintf("%d Cannot store message in %s: error %d\n",
3025 /* Now delete the message from the source room,
3026 * if this is a 'move' rather than a 'copy' operation.
3029 CtdlDeleteMessages(CC->room.QRname, num, "");
3032 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3038 * GetMetaData() - Get the supplementary record for a message
3040 void GetMetaData(struct MetaData *smibuf, long msgnum)
3043 struct cdbdata *cdbsmi;
3046 memset(smibuf, 0, sizeof(struct MetaData));
3047 smibuf->meta_msgnum = msgnum;
3048 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3050 /* Use the negative of the message number for its supp record index */
3051 TheIndex = (0L - msgnum);
3053 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3054 if (cdbsmi == NULL) {
3055 return; /* record not found; go with defaults */
3057 memcpy(smibuf, cdbsmi->ptr,
3058 ((cdbsmi->len > sizeof(struct MetaData)) ?
3059 sizeof(struct MetaData) : cdbsmi->len));
3066 * PutMetaData() - (re)write supplementary record for a message
3068 void PutMetaData(struct MetaData *smibuf)
3072 /* Use the negative of the message number for the metadata db index */
3073 TheIndex = (0L - smibuf->meta_msgnum);
3075 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3076 smibuf->meta_msgnum, smibuf->meta_refcount);
3078 cdb_store(CDB_MSGMAIN,
3079 &TheIndex, sizeof(long),
3080 smibuf, sizeof(struct MetaData));
3085 * AdjRefCount - change the reference count for a message;
3086 * delete the message if it reaches zero
3088 void AdjRefCount(long msgnum, int incr)
3091 struct MetaData smi;
3094 /* This is a *tight* critical section; please keep it that way, as
3095 * it may get called while nested in other critical sections.
3096 * Complicating this any further will surely cause deadlock!
3098 begin_critical_section(S_SUPPMSGMAIN);
3099 GetMetaData(&smi, msgnum);
3100 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3101 msgnum, smi.meta_refcount);
3102 smi.meta_refcount += incr;
3104 end_critical_section(S_SUPPMSGMAIN);
3105 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3106 msgnum, smi.meta_refcount);
3108 /* If the reference count is now zero, delete the message
3109 * (and its supplementary record as well).
3111 if (smi.meta_refcount == 0) {
3112 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3114 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3115 cdb_delete(CDB_BIGMSGS, &delnum, sizeof(long));
3117 /* We have to delete the metadata record too! */
3118 delnum = (0L - msgnum);
3119 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3124 * Write a generic object to this room
3126 * Note: this could be much more efficient. Right now we use two temporary
3127 * files, and still pull the message into memory as with all others.
3129 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3130 char *content_type, /* MIME type of this object */
3131 char *tempfilename, /* Where to fetch it from */
3132 struct ctdluser *is_mailbox, /* Mailbox room? */
3133 int is_binary, /* Is encoding necessary? */
3134 int is_unique, /* Del others of this type? */
3135 unsigned int flags /* Internal save flags */
3140 struct ctdlroom qrbuf;
3141 char roomname[ROOMNAMELEN];
3142 struct CtdlMessage *msg;
3144 char *raw_message = NULL;
3145 char *encoded_message = NULL;
3146 off_t raw_length = 0;
3148 if (is_mailbox != NULL)
3149 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3151 safestrncpy(roomname, req_room, sizeof(roomname));
3152 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3155 fp = fopen(tempfilename, "rb");
3157 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3158 tempfilename, strerror(errno));
3161 fseek(fp, 0L, SEEK_END);
3162 raw_length = ftell(fp);
3164 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3166 raw_message = malloc((size_t)raw_length + 2);
3167 fread(raw_message, (size_t)raw_length, 1, fp);
3171 encoded_message = malloc((size_t)
3172 (((raw_length * 134) / 100) + 4096 ) );
3175 encoded_message = malloc((size_t)(raw_length + 4096));
3178 sprintf(encoded_message, "Content-type: %s\n", content_type);
3181 sprintf(&encoded_message[strlen(encoded_message)],
3182 "Content-transfer-encoding: base64\n\n"
3186 sprintf(&encoded_message[strlen(encoded_message)],
3187 "Content-transfer-encoding: 7bit\n\n"
3193 &encoded_message[strlen(encoded_message)],
3199 raw_message[raw_length] = 0;
3201 &encoded_message[strlen(encoded_message)],
3209 lprintf(CTDL_DEBUG, "Allocating\n");
3210 msg = malloc(sizeof(struct CtdlMessage));
3211 memset(msg, 0, sizeof(struct CtdlMessage));
3212 msg->cm_magic = CTDLMESSAGE_MAGIC;
3213 msg->cm_anon_type = MES_NORMAL;
3214 msg->cm_format_type = 4;
3215 msg->cm_fields['A'] = strdup(CC->user.fullname);
3216 msg->cm_fields['O'] = strdup(req_room);
3217 msg->cm_fields['N'] = strdup(config.c_nodename);
3218 msg->cm_fields['H'] = strdup(config.c_humannode);
3219 msg->cm_flags = flags;
3221 msg->cm_fields['M'] = encoded_message;
3223 /* Create the requested room if we have to. */
3224 if (getroom(&qrbuf, roomname) != 0) {
3225 create_room(roomname,
3226 ( (is_mailbox != NULL) ? 5 : 3 ),
3229 /* If the caller specified this object as unique, delete all
3230 * other objects of this type that are currently in the room.
3233 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3234 CtdlDeleteMessages(roomname, 0L, content_type));
3236 /* Now write the data */
3237 CtdlSubmitMsg(msg, NULL, roomname);
3238 CtdlFreeMessage(msg);
3246 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3247 config_msgnum = msgnum;
3251 char *CtdlGetSysConfig(char *sysconfname) {
3252 char hold_rm[ROOMNAMELEN];
3255 struct CtdlMessage *msg;
3258 strcpy(hold_rm, CC->room.QRname);
3259 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3260 getroom(&CC->room, hold_rm);
3265 /* We want the last (and probably only) config in this room */
3266 begin_critical_section(S_CONFIG);
3267 config_msgnum = (-1L);
3268 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3269 CtdlGetSysConfigBackend, NULL);
3270 msgnum = config_msgnum;
3271 end_critical_section(S_CONFIG);
3277 msg = CtdlFetchMessage(msgnum, 1);
3279 conf = strdup(msg->cm_fields['M']);
3280 CtdlFreeMessage(msg);
3287 getroom(&CC->room, hold_rm);
3289 if (conf != NULL) do {
3290 extract_token(buf, conf, 0, '\n');
3291 strcpy(conf, &conf[strlen(buf)+1]);
3292 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3297 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3298 char temp[PATH_MAX];
3301 strcpy(temp, tmpnam(NULL));
3303 fp = fopen(temp, "w");
3304 if (fp == NULL) return;
3305 fprintf(fp, "%s", sysconfdata);
3308 /* this handy API function does all the work for us */
3309 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3315 * Determine whether a given Internet address belongs to the current user
3317 int CtdlIsMe(char *addr) {
3318 struct recptypes *recp;
3321 recp = validate_recipients(addr);
3322 if (recp == NULL) return(0);
3324 if (recp->num_local == 0) {
3329 for (i=0; i<recp->num_local; ++i) {
3330 extract(addr, recp->recp_local, i);
3331 if (!strcasecmp(addr, CC->user.fullname)) {
3343 * Citadel protocol command to do the same
3345 void cmd_isme(char *argbuf) {
3348 if (CtdlAccessCheck(ac_logged_in)) return;
3349 extract(addr, argbuf, 0);
3351 if (CtdlIsMe(addr)) {
3352 cprintf("%d %s\n", CIT_OK, addr);
3355 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);