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: check message id against msglist for this room */
1086 * Fetch the message from disk. If we're in sooper-fast headers
1087 * only mode, request that we don't even bother loading the body
1090 if (headers_only == HEADERS_FAST) {
1091 TheMessage = CtdlFetchMessage(msg_num, 0);
1094 TheMessage = CtdlFetchMessage(msg_num, 1);
1097 if (TheMessage == NULL) {
1098 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1099 ERROR + MESSAGE_NOT_FOUND, msg_num);
1100 return(om_no_such_msg);
1103 retcode = CtdlOutputPreLoadedMsg(
1104 TheMessage, msg_num, mode,
1105 headers_only, do_proto, crlf);
1107 CtdlFreeMessage(TheMessage);
1114 * Get a message off disk. (returns om_* values found in msgbase.h)
1117 int CtdlOutputPreLoadedMsg(struct CtdlMessage *TheMessage,
1119 int mode, /* how would you like that message? */
1120 int headers_only, /* eschew the message body? */
1121 int do_proto, /* do Citadel protocol responses? */
1122 int crlf /* Use CRLF newlines instead of LF? */
1128 char display_name[SIZ];
1130 char *nl; /* newline string */
1132 int subject_found = 0;
1134 /* buffers needed for RFC822 translation */
1141 char datestamp[SIZ];
1144 snprintf(mid, sizeof mid, "%ld", msg_num);
1145 nl = (crlf ? "\r\n" : "\n");
1147 if (!is_valid_message(TheMessage)) {
1148 lprintf(CTDL_ERR, "ERROR: invalid preloaded message for output\n");
1149 return(om_no_such_msg);
1152 /* Are we downloading a MIME component? */
1153 if (mode == MT_DOWNLOAD) {
1154 if (TheMessage->cm_format_type != FMT_RFC822) {
1156 cprintf("%d This is not a MIME message.\n",
1157 ERROR + ILLEGAL_VALUE);
1158 } else if (CC->download_fp != NULL) {
1159 if (do_proto) cprintf(
1160 "%d You already have a download open.\n",
1161 ERROR + RESOURCE_BUSY);
1163 /* Parse the message text component */
1164 mptr = TheMessage->cm_fields['M'];
1165 mime_parser(mptr, NULL,
1166 *mime_download, NULL, NULL,
1168 /* If there's no file open by this time, the requested
1169 * section wasn't found, so print an error
1171 if (CC->download_fp == NULL) {
1172 if (do_proto) cprintf(
1173 "%d Section %s not found.\n",
1174 ERROR + FILE_NOT_FOUND,
1178 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1181 /* now for the user-mode message reading loops */
1182 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1184 /* Does the caller want to skip the headers? */
1185 if (headers_only == HEADERS_NONE) goto START_TEXT;
1187 /* Tell the client which format type we're using. */
1188 if ( (mode == MT_CITADEL) && (do_proto) ) {
1189 cprintf("type=%d\n", TheMessage->cm_format_type);
1192 /* nhdr=yes means that we're only displaying headers, no body */
1193 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1194 && (mode == MT_CITADEL)
1197 cprintf("nhdr=yes\n");
1200 /* begin header processing loop for Citadel message format */
1202 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1204 strcpy(display_name, "<unknown>");
1205 if (TheMessage->cm_fields['A']) {
1206 strcpy(buf, TheMessage->cm_fields['A']);
1207 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1208 strcpy(display_name, "****");
1210 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1211 strcpy(display_name, "anonymous");
1214 strcpy(display_name, buf);
1216 if ((is_room_aide())
1217 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1218 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1219 size_t tmp = strlen(display_name);
1220 snprintf(&display_name[tmp],
1221 sizeof display_name - tmp,
1226 /* Don't show Internet address for users on the
1227 * local Citadel network.
1230 if (TheMessage->cm_fields['N'] != NULL)
1231 if (strlen(TheMessage->cm_fields['N']) > 0)
1232 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1236 /* Now spew the header fields in the order we like them. */
1237 strcpy(allkeys, FORDER);
1238 for (i=0; i<strlen(allkeys); ++i) {
1239 k = (int) allkeys[i];
1241 if ( (TheMessage->cm_fields[k] != NULL)
1242 && (msgkeys[k] != NULL) ) {
1244 if (do_proto) cprintf("%s=%s\n",
1248 else if ((k == 'F') && (suppress_f)) {
1251 /* Masquerade display name if needed */
1253 if (do_proto) cprintf("%s=%s\n",
1255 TheMessage->cm_fields[k]
1264 /* begin header processing loop for RFC822 transfer format */
1269 strcpy(snode, NODENAME);
1270 strcpy(lnode, HUMANNODE);
1271 if (mode == MT_RFC822) {
1272 cprintf("X-UIDL: %ld%s", msg_num, nl);
1273 for (i = 0; i < 256; ++i) {
1274 if (TheMessage->cm_fields[i]) {
1275 mptr = TheMessage->cm_fields[i];
1278 strcpy(luser, mptr);
1279 strcpy(suser, mptr);
1282 "Path:" removed for now because it confuses brain-dead Microsoft shitware
1283 into thinking that mail messages are newsgroup messages instead. When we
1284 add NNTP support back into Citadel we'll have to add code to only output
1285 this field when appropriate.
1286 else if (i == 'P') {
1287 cprintf("Path: %s%s", mptr, nl);
1290 else if (i == 'U') {
1291 cprintf("Subject: %s%s", mptr, nl);
1295 safestrncpy(mid, mptr, sizeof mid);
1297 safestrncpy(lnode, mptr, sizeof lnode);
1299 safestrncpy(fuser, mptr, sizeof fuser);
1301 cprintf("X-Citadel-Room: %s%s",
1304 safestrncpy(snode, mptr, sizeof snode);
1306 cprintf("To: %s%s", mptr, nl);
1307 else if (i == 'T') {
1308 datestring(datestamp, sizeof datestamp,
1309 atol(mptr), DATESTRING_RFC822);
1310 cprintf("Date: %s%s", datestamp, nl);
1314 if (subject_found == 0) {
1315 cprintf("Subject: (no subject)%s", nl);
1319 for (i=0; i<strlen(suser); ++i) {
1320 suser[i] = tolower(suser[i]);
1321 if (!isalnum(suser[i])) suser[i]='_';
1324 if (mode == MT_RFC822) {
1325 if (!strcasecmp(snode, NODENAME)) {
1326 strcpy(snode, FQDN);
1329 /* Construct a fun message id */
1330 cprintf("Message-ID: <%s", mid);
1331 if (strchr(mid, '@')==NULL) {
1332 cprintf("@%s", snode);
1336 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1337 cprintf("From: x@x.org (----)%s", nl);
1339 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1340 cprintf("From: x@x.org (anonymous)%s", nl);
1342 else if (strlen(fuser) > 0) {
1343 cprintf("From: %s (%s)%s", fuser, luser, nl);
1346 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1349 cprintf("Organization: %s%s", lnode, nl);
1351 /* Blank line signifying RFC822 end-of-headers */
1352 if (TheMessage->cm_format_type != FMT_RFC822) {
1357 /* end header processing loop ... at this point, we're in the text */
1359 if (headers_only == HEADERS_FAST) goto DONE;
1360 mptr = TheMessage->cm_fields['M'];
1362 /* Tell the client about the MIME parts in this message */
1363 if (TheMessage->cm_format_type == FMT_RFC822) {
1364 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1365 mime_parser(mptr, NULL,
1371 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1372 /* FIXME ... we have to put some code in here to avoid
1373 * printing duplicate header information when both
1374 * Citadel and RFC822 headers exist. Preference should
1375 * probably be given to the RFC822 headers.
1377 int done_rfc822_hdrs = 0;
1378 while (ch=*(mptr++), ch!=0) {
1383 if (!done_rfc822_hdrs) {
1384 if (headers_only != HEADERS_NONE) {
1389 if (headers_only != HEADERS_ONLY) {
1393 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1394 done_rfc822_hdrs = 1;
1398 if (done_rfc822_hdrs) {
1399 if (headers_only != HEADERS_NONE) {
1404 if (headers_only != HEADERS_ONLY) {
1408 if ((*mptr == 13) || (*mptr == 10)) {
1409 done_rfc822_hdrs = 1;
1417 if (headers_only == HEADERS_ONLY) {
1421 /* signify start of msg text */
1422 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1423 if (do_proto) cprintf("text\n");
1426 /* If the format type on disk is 1 (fixed-format), then we want
1427 * everything to be output completely literally ... regardless of
1428 * what message transfer format is in use.
1430 if (TheMessage->cm_format_type == FMT_FIXED) {
1431 if (mode == MT_MIME) {
1432 cprintf("Content-type: text/plain\n\n");
1435 while (ch = *mptr++, ch > 0) {
1438 if ((ch == 10) || (strlen(buf) > 250)) {
1439 cprintf("%s%s", buf, nl);
1442 buf[strlen(buf) + 1] = 0;
1443 buf[strlen(buf)] = ch;
1446 if (strlen(buf) > 0)
1447 cprintf("%s%s", buf, nl);
1450 /* If the message on disk is format 0 (Citadel vari-format), we
1451 * output using the formatter at 80 columns. This is the final output
1452 * form if the transfer format is RFC822, but if the transfer format
1453 * is Citadel proprietary, it'll still work, because the indentation
1454 * for new paragraphs is correct and the client will reformat the
1455 * message to the reader's screen width.
1457 if (TheMessage->cm_format_type == FMT_CITADEL) {
1458 if (mode == MT_MIME) {
1459 cprintf("Content-type: text/x-citadel-variformat\n\n");
1461 memfmout(80, mptr, 0, nl);
1464 /* If the message on disk is format 4 (MIME), we've gotta hand it
1465 * off to the MIME parser. The client has already been told that
1466 * this message is format 1 (fixed format), so the callback function
1467 * we use will display those parts as-is.
1469 if (TheMessage->cm_format_type == FMT_RFC822) {
1470 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1471 memset(ma, 0, sizeof(struct ma_info));
1473 if (mode == MT_MIME) {
1474 strcpy(ma->chosen_part, "1");
1475 mime_parser(mptr, NULL,
1476 *choose_preferred, *fixed_output_pre,
1477 *fixed_output_post, NULL, 0);
1478 mime_parser(mptr, NULL,
1479 *output_preferred, NULL, NULL, NULL, 0);
1482 mime_parser(mptr, NULL,
1483 *fixed_output, *fixed_output_pre,
1484 *fixed_output_post, NULL, 0);
1488 DONE: /* now we're done */
1489 if (do_proto) cprintf("000\n");
1496 * display a message (mode 0 - Citadel proprietary)
1498 void cmd_msg0(char *cmdbuf)
1501 int headers_only = HEADERS_ALL;
1503 msgid = extract_long(cmdbuf, 0);
1504 headers_only = extract_int(cmdbuf, 1);
1506 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1512 * display a message (mode 2 - RFC822)
1514 void cmd_msg2(char *cmdbuf)
1517 int headers_only = HEADERS_ALL;
1519 msgid = extract_long(cmdbuf, 0);
1520 headers_only = extract_int(cmdbuf, 1);
1522 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1528 * display a message (mode 3 - IGnet raw format - internal programs only)
1530 void cmd_msg3(char *cmdbuf)
1533 struct CtdlMessage *msg;
1536 if (CC->internal_pgm == 0) {
1537 cprintf("%d This command is for internal programs only.\n",
1538 ERROR + HIGHER_ACCESS_REQUIRED);
1542 msgnum = extract_long(cmdbuf, 0);
1543 msg = CtdlFetchMessage(msgnum, 1);
1545 cprintf("%d Message %ld not found.\n",
1546 ERROR + MESSAGE_NOT_FOUND, msgnum);
1550 serialize_message(&smr, msg);
1551 CtdlFreeMessage(msg);
1554 cprintf("%d Unable to serialize message\n",
1555 ERROR + INTERNAL_ERROR);
1559 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1560 client_write(smr.ser, smr.len);
1567 * Display a message using MIME content types
1569 void cmd_msg4(char *cmdbuf)
1573 msgid = extract_long(cmdbuf, 0);
1574 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1580 * Client tells us its preferred message format(s)
1582 void cmd_msgp(char *cmdbuf)
1584 safestrncpy(CC->preferred_formats, cmdbuf,
1585 sizeof(CC->preferred_formats));
1586 cprintf("%d ok\n", CIT_OK);
1591 * Open a component of a MIME message as a download file
1593 void cmd_opna(char *cmdbuf)
1597 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1599 msgid = extract_long(cmdbuf, 0);
1600 extract(desired_section, cmdbuf, 1);
1602 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1607 * Save a message pointer into a specified room
1608 * (Returns 0 for success, nonzero for failure)
1609 * roomname may be NULL to use the current room
1611 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1613 char hold_rm[ROOMNAMELEN];
1614 struct cdbdata *cdbfr;
1617 long highest_msg = 0L;
1618 struct CtdlMessage *msg = NULL;
1620 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1621 roomname, msgid, flags);
1623 strcpy(hold_rm, CC->room.QRname);
1625 /* We may need to check to see if this message is real */
1626 if ( (flags & SM_VERIFY_GOODNESS)
1627 || (flags & SM_DO_REPL_CHECK)
1629 msg = CtdlFetchMessage(msgid, 1);
1630 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1633 /* Perform replication checks if necessary */
1634 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1636 if (getroom(&CC->room,
1637 ((roomname != NULL) ? roomname : CC->room.QRname) )
1639 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1640 if (msg != NULL) CtdlFreeMessage(msg);
1641 return(ERROR + ROOM_NOT_FOUND);
1644 if (ReplicationChecks(msg) != 0) {
1645 getroom(&CC->room, hold_rm);
1646 if (msg != NULL) CtdlFreeMessage(msg);
1647 lprintf(CTDL_DEBUG, "Did replication, and newer exists\n");
1652 /* Now the regular stuff */
1653 if (lgetroom(&CC->room,
1654 ((roomname != NULL) ? roomname : CC->room.QRname) )
1656 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1657 if (msg != NULL) CtdlFreeMessage(msg);
1658 return(ERROR + ROOM_NOT_FOUND);
1661 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1662 if (cdbfr == NULL) {
1666 msglist = malloc(cdbfr->len);
1667 if (msglist == NULL)
1668 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1669 num_msgs = cdbfr->len / sizeof(long);
1670 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1675 /* Make sure the message doesn't already exist in this room. It
1676 * is absolutely taboo to have more than one reference to the same
1677 * message in a room.
1679 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1680 if (msglist[i] == msgid) {
1681 lputroom(&CC->room); /* unlock the room */
1682 getroom(&CC->room, hold_rm);
1683 if (msg != NULL) CtdlFreeMessage(msg);
1685 return(ERROR + ALREADY_EXISTS);
1689 /* Now add the new message */
1691 msglist = realloc(msglist,
1692 (num_msgs * sizeof(long)));
1694 if (msglist == NULL) {
1695 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1697 msglist[num_msgs - 1] = msgid;
1699 /* Sort the message list, so all the msgid's are in order */
1700 num_msgs = sort_msglist(msglist, num_msgs);
1702 /* Determine the highest message number */
1703 highest_msg = msglist[num_msgs - 1];
1705 /* Write it back to disk. */
1706 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long),
1707 msglist, num_msgs * sizeof(long));
1709 /* Free up the memory we used. */
1712 /* Update the highest-message pointer and unlock the room. */
1713 CC->room.QRhighest = highest_msg;
1714 lputroom(&CC->room);
1715 getroom(&CC->room, hold_rm);
1717 /* Bump the reference count for this message. */
1718 if ((flags & SM_DONT_BUMP_REF)==0) {
1719 AdjRefCount(msgid, +1);
1722 /* Return success. */
1723 if (msg != NULL) CtdlFreeMessage(msg);
1730 * Message base operation to send a message to the master file
1731 * (returns new message number)
1733 * This is the back end for CtdlSubmitMsg() and should not be directly
1734 * called by server-side modules.
1737 long send_message(struct CtdlMessage *msg) {
1745 /* Get a new message number */
1746 newmsgid = get_new_message_number();
1747 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1749 /* Generate an ID if we don't have one already */
1750 if (msg->cm_fields['I']==NULL) {
1751 msg->cm_fields['I'] = strdup(msgidbuf);
1754 /* If the message is big, set its body aside for storage elsewhere */
1755 if (msg->cm_fields['M'] != NULL) {
1756 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1758 holdM = msg->cm_fields['M'];
1759 msg->cm_fields['M'] = NULL;
1763 /* Serialize our data structure for storage in the database */
1764 serialize_message(&smr, msg);
1767 msg->cm_fields['M'] = holdM;
1771 cprintf("%d Unable to serialize message\n",
1772 ERROR + INTERNAL_ERROR);
1776 /* Write our little bundle of joy into the message base */
1777 if (cdb_store(CDB_MSGMAIN, &newmsgid, sizeof(long),
1778 smr.ser, smr.len) < 0) {
1779 lprintf(CTDL_ERR, "Can't store message\n");
1783 cdb_store(CDB_BIGMSGS,
1793 /* Free the memory we used for the serialized message */
1796 /* Return the *local* message ID to the caller
1797 * (even if we're storing an incoming network message)
1805 * Serialize a struct CtdlMessage into the format used on disk and network.
1807 * This function loads up a "struct ser_ret" (defined in server.h) which
1808 * contains the length of the serialized message and a pointer to the
1809 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1811 void serialize_message(struct ser_ret *ret, /* return values */
1812 struct CtdlMessage *msg) /* unserialized msg */
1816 static char *forder = FORDER;
1818 if (is_valid_message(msg) == 0) return; /* self check */
1821 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1822 ret->len = ret->len +
1823 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1825 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1826 ret->ser = malloc(ret->len);
1827 if (ret->ser == NULL) {
1833 ret->ser[1] = msg->cm_anon_type;
1834 ret->ser[2] = msg->cm_format_type;
1837 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1838 ret->ser[wlen++] = (char)forder[i];
1839 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1840 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1842 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1843 (long)ret->len, (long)wlen);
1851 * Back end for the ReplicationChecks() function
1853 void check_repl(long msgnum, void *userdata) {
1854 struct CtdlMessage *msg;
1855 time_t timestamp = (-1L);
1857 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1858 msg = CtdlFetchMessage(msgnum, 1);
1859 if (msg == NULL) return;
1860 if (msg->cm_fields['T'] != NULL) {
1861 timestamp = atol(msg->cm_fields['T']);
1863 CtdlFreeMessage(msg);
1865 if (timestamp > msg_repl->highest) {
1866 msg_repl->highest = timestamp; /* newer! */
1867 lprintf(CTDL_DEBUG, "newer!\n");
1870 lprintf(CTDL_DEBUG, "older!\n");
1872 /* Existing isn't newer? Then delete the old one(s). */
1873 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1878 * Check to see if any messages already exist which carry the same Extended ID
1882 * -> With older timestamps: delete them and return 0. Message will be saved.
1883 * -> With newer timestamps: return 1. Message save will be aborted.
1885 int ReplicationChecks(struct CtdlMessage *msg) {
1886 struct CtdlMessage *template;
1889 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1890 /* No extended id? Don't do anything. */
1891 if (msg->cm_fields['E'] == NULL) return 0;
1892 if (strlen(msg->cm_fields['E']) == 0) return 0;
1893 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1895 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1896 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1897 msg_repl->highest = atol(msg->cm_fields['T']);
1899 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1900 memset(template, 0, sizeof(struct CtdlMessage));
1901 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1903 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1905 /* If a newer message exists with the same Extended ID, abort
1908 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1912 CtdlFreeMessage(template);
1913 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1921 * Save a message to disk and submit it into the delivery system.
1923 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1924 struct recptypes *recps, /* recipients (if mail) */
1925 char *force /* force a particular room? */
1928 char hold_rm[ROOMNAMELEN];
1929 char actual_rm[ROOMNAMELEN];
1930 char force_room[ROOMNAMELEN];
1931 char content_type[SIZ]; /* We have to learn this */
1932 char recipient[SIZ];
1935 struct ctdluser userbuf;
1937 struct MetaData smi;
1938 FILE *network_fp = NULL;
1939 static int seqnum = 1;
1940 struct CtdlMessage *imsg = NULL;
1943 char *hold_R, *hold_D;
1945 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1946 if (is_valid_message(msg) == 0) return(-1); /* self check */
1948 /* If this message has no timestamp, we take the liberty of
1949 * giving it one, right now.
1951 if (msg->cm_fields['T'] == NULL) {
1952 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1953 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1954 msg->cm_fields['T'] = strdup(aaa);
1957 /* If this message has no path, we generate one.
1959 if (msg->cm_fields['P'] == NULL) {
1960 lprintf(CTDL_DEBUG, "Generating path\n");
1961 if (msg->cm_fields['A'] != NULL) {
1962 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1963 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1964 if (isspace(msg->cm_fields['P'][a])) {
1965 msg->cm_fields['P'][a] = ' ';
1970 msg->cm_fields['P'] = strdup("unknown");
1974 if (force == NULL) {
1975 strcpy(force_room, "");
1978 strcpy(force_room, force);
1981 /* Learn about what's inside, because it's what's inside that counts */
1982 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1983 if (msg->cm_fields['M'] == NULL) {
1984 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1988 switch (msg->cm_format_type) {
1990 strcpy(content_type, "text/x-citadel-variformat");
1993 strcpy(content_type, "text/plain");
1996 strcpy(content_type, "text/plain");
1997 /* advance past header fields */
1998 mptr = msg->cm_fields['M'];
2001 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2002 safestrncpy(content_type, mptr,
2003 sizeof(content_type));
2004 strcpy(content_type, &content_type[14]);
2005 for (a = 0; a < strlen(content_type); ++a)
2006 if ((content_type[a] == ';')
2007 || (content_type[a] == ' ')
2008 || (content_type[a] == 13)
2009 || (content_type[a] == 10))
2010 content_type[a] = 0;
2017 /* Goto the correct room */
2018 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2019 strcpy(hold_rm, CC->room.QRname);
2020 strcpy(actual_rm, CC->room.QRname);
2021 if (recps != NULL) {
2022 strcpy(actual_rm, SENTITEMS);
2025 /* If the user is a twit, move to the twit room for posting */
2026 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2027 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2029 if (CC->user.axlevel == 2) {
2030 strcpy(hold_rm, actual_rm);
2031 strcpy(actual_rm, config.c_twitroom);
2035 /* ...or if this message is destined for Aide> then go there. */
2036 if (strlen(force_room) > 0) {
2037 strcpy(actual_rm, force_room);
2040 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2041 if (strcasecmp(actual_rm, CC->room.QRname)) {
2042 getroom(&CC->room, actual_rm);
2046 * If this message has no O (room) field, generate one.
2048 if (msg->cm_fields['O'] == NULL) {
2049 msg->cm_fields['O'] = strdup(CC->room.QRname);
2052 /* Perform "before save" hooks (aborting if any return nonzero) */
2053 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2054 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2056 /* If this message has an Extended ID, perform replication checks */
2057 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2058 if (ReplicationChecks(msg) > 0) return(-1);
2060 /* Save it to disk */
2061 lprintf(CTDL_DEBUG, "Saving to disk\n");
2062 newmsgid = send_message(msg);
2063 if (newmsgid <= 0L) return(-1);
2065 /* Write a supplemental message info record. This doesn't have to
2066 * be a critical section because nobody else knows about this message
2069 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2070 memset(&smi, 0, sizeof(struct MetaData));
2071 smi.meta_msgnum = newmsgid;
2072 smi.meta_refcount = 0;
2073 safestrncpy(smi.meta_content_type, content_type, 64);
2076 /* Now figure out where to store the pointers */
2077 lprintf(CTDL_DEBUG, "Storing pointers\n");
2079 /* If this is being done by the networker delivering a private
2080 * message, we want to BYPASS saving the sender's copy (because there
2081 * is no local sender; it would otherwise go to the Trashcan).
2083 if ((!CC->internal_pgm) || (recps == NULL)) {
2084 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2085 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2086 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2090 /* For internet mail, drop a copy in the outbound queue room */
2092 if (recps->num_internet > 0) {
2093 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2096 /* If other rooms are specified, drop them there too. */
2098 if (recps->num_room > 0)
2099 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2100 extract(recipient, recps->recp_room, i);
2101 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2102 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2105 /* Bump this user's messages posted counter. */
2106 lprintf(CTDL_DEBUG, "Updating user\n");
2107 lgetuser(&CC->user, CC->curr_user);
2108 CC->user.posted = CC->user.posted + 1;
2109 lputuser(&CC->user);
2111 /* If this is private, local mail, make a copy in the
2112 * recipient's mailbox and bump the reference count.
2115 if (recps->num_local > 0)
2116 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2117 extract(recipient, recps->recp_local, i);
2118 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2120 if (getuser(&userbuf, recipient) == 0) {
2121 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2122 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2123 BumpNewMailCounter(userbuf.usernum);
2126 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2127 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2131 /* Perform "after save" hooks */
2132 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2133 PerformMessageHooks(msg, EVT_AFTERSAVE);
2135 /* For IGnet mail, we have to save a new copy into the spooler for
2136 * each recipient, with the R and D fields set to the recipient and
2137 * destination-node. This has two ugly side effects: all other
2138 * recipients end up being unlisted in this recipient's copy of the
2139 * message, and it has to deliver multiple messages to the same
2140 * node. We'll revisit this again in a year or so when everyone has
2141 * a network spool receiver that can handle the new style messages.
2144 if (recps->num_ignet > 0)
2145 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2146 extract(recipient, recps->recp_ignet, i);
2148 hold_R = msg->cm_fields['R'];
2149 hold_D = msg->cm_fields['D'];
2150 msg->cm_fields['R'] = malloc(SIZ);
2151 msg->cm_fields['D'] = malloc(SIZ);
2152 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2153 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2155 serialize_message(&smr, msg);
2157 snprintf(aaa, sizeof aaa,
2158 "./network/spoolin/netmail.%04lx.%04x.%04x",
2159 (long) getpid(), CC->cs_pid, ++seqnum);
2160 network_fp = fopen(aaa, "wb+");
2161 if (network_fp != NULL) {
2162 fwrite(smr.ser, smr.len, 1, network_fp);
2168 free(msg->cm_fields['R']);
2169 free(msg->cm_fields['D']);
2170 msg->cm_fields['R'] = hold_R;
2171 msg->cm_fields['D'] = hold_D;
2174 /* Go back to the room we started from */
2175 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2176 if (strcasecmp(hold_rm, CC->room.QRname))
2177 getroom(&CC->room, hold_rm);
2179 /* For internet mail, generate delivery instructions.
2180 * Yes, this is recursive. Deal with it. Infinite recursion does
2181 * not happen because the delivery instructions message does not
2182 * contain a recipient.
2185 if (recps->num_internet > 0) {
2186 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2187 instr = malloc(SIZ * 2);
2188 snprintf(instr, SIZ * 2,
2189 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2191 SPOOLMIME, newmsgid, (long)time(NULL),
2192 msg->cm_fields['A'], msg->cm_fields['N']
2195 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2196 size_t tmp = strlen(instr);
2197 extract(recipient, recps->recp_internet, i);
2198 snprintf(&instr[tmp], SIZ * 2 - tmp,
2199 "remote|%s|0||\n", recipient);
2202 imsg = malloc(sizeof(struct CtdlMessage));
2203 memset(imsg, 0, sizeof(struct CtdlMessage));
2204 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2205 imsg->cm_anon_type = MES_NORMAL;
2206 imsg->cm_format_type = FMT_RFC822;
2207 imsg->cm_fields['A'] = strdup("Citadel");
2208 imsg->cm_fields['M'] = instr;
2209 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2210 CtdlFreeMessage(imsg);
2219 * Convenience function for generating small administrative messages.
2221 void quickie_message(char *from, char *to, char *room, char *text,
2222 int format_type, char *subject)
2224 struct CtdlMessage *msg;
2225 struct recptypes *recp = NULL;
2227 msg = malloc(sizeof(struct CtdlMessage));
2228 memset(msg, 0, sizeof(struct CtdlMessage));
2229 msg->cm_magic = CTDLMESSAGE_MAGIC;
2230 msg->cm_anon_type = MES_NORMAL;
2231 msg->cm_format_type = format_type;
2232 msg->cm_fields['A'] = strdup(from);
2233 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2234 msg->cm_fields['N'] = strdup(NODENAME);
2236 msg->cm_fields['R'] = strdup(to);
2237 recp = validate_recipients(to);
2239 if (subject != NULL) {
2240 msg->cm_fields['U'] = strdup(subject);
2242 msg->cm_fields['M'] = strdup(text);
2244 CtdlSubmitMsg(msg, recp, room);
2245 CtdlFreeMessage(msg);
2246 if (recp != NULL) free(recp);
2252 * Back end function used by CtdlMakeMessage() and similar functions
2254 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2255 size_t maxlen, /* maximum message length */
2256 char *exist, /* if non-null, append to it;
2257 exist is ALWAYS freed */
2258 int crlf /* CRLF newlines instead of LF */
2262 size_t message_len = 0;
2263 size_t buffer_len = 0;
2269 if (exist == NULL) {
2276 message_len = strlen(exist);
2277 buffer_len = message_len + 4096;
2278 m = realloc(exist, buffer_len);
2285 /* flush the input if we have nowhere to store it */
2290 /* read in the lines of message text one by one */
2292 if (client_gets(buf) < 1) finished = 1;
2293 if (!strcmp(buf, terminator)) finished = 1;
2295 strcat(buf, "\r\n");
2301 if ( (!flushing) && (!finished) ) {
2302 /* Measure the line */
2303 linelen = strlen(buf);
2305 /* augment the buffer if we have to */
2306 if ((message_len + linelen) >= buffer_len) {
2307 ptr = realloc(m, (buffer_len * 2) );
2308 if (ptr == NULL) { /* flush if can't allocate */
2311 buffer_len = (buffer_len * 2);
2313 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2317 /* Add the new line to the buffer. NOTE: this loop must avoid
2318 * using functions like strcat() and strlen() because they
2319 * traverse the entire buffer upon every call, and doing that
2320 * for a multi-megabyte message slows it down beyond usability.
2322 strcpy(&m[message_len], buf);
2323 message_len += linelen;
2326 /* if we've hit the max msg length, flush the rest */
2327 if (message_len >= maxlen) flushing = 1;
2329 } while (!finished);
2337 * Build a binary message to be saved on disk.
2338 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2339 * will become part of the message. This means you are no longer
2340 * responsible for managing that memory -- it will be freed along with
2341 * the rest of the fields when CtdlFreeMessage() is called.)
2344 struct CtdlMessage *CtdlMakeMessage(
2345 struct ctdluser *author, /* author's user structure */
2346 char *recipient, /* NULL if it's not mail */
2347 char *room, /* room where it's going */
2348 int type, /* see MES_ types in header file */
2349 int format_type, /* variformat, plain text, MIME... */
2350 char *fake_name, /* who we're masquerading as */
2351 char *subject, /* Subject (optional) */
2352 char *preformatted_text /* ...or NULL to read text from client */
2354 char dest_node[SIZ];
2356 struct CtdlMessage *msg;
2358 msg = malloc(sizeof(struct CtdlMessage));
2359 memset(msg, 0, sizeof(struct CtdlMessage));
2360 msg->cm_magic = CTDLMESSAGE_MAGIC;
2361 msg->cm_anon_type = type;
2362 msg->cm_format_type = format_type;
2364 /* Don't confuse the poor folks if it's not routed mail. */
2365 strcpy(dest_node, "");
2369 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2370 msg->cm_fields['P'] = strdup(buf);
2372 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2373 msg->cm_fields['T'] = strdup(buf);
2375 if (fake_name[0]) /* author */
2376 msg->cm_fields['A'] = strdup(fake_name);
2378 msg->cm_fields['A'] = strdup(author->fullname);
2380 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2381 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2384 msg->cm_fields['O'] = strdup(CC->room.QRname);
2387 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2388 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2390 if (recipient[0] != 0) {
2391 msg->cm_fields['R'] = strdup(recipient);
2393 if (dest_node[0] != 0) {
2394 msg->cm_fields['D'] = strdup(dest_node);
2397 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2398 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2401 if (subject != NULL) {
2403 if (strlen(subject) > 0) {
2404 msg->cm_fields['U'] = strdup(subject);
2408 if (preformatted_text != NULL) {
2409 msg->cm_fields['M'] = preformatted_text;
2412 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2413 config.c_maxmsglen, NULL, 0);
2421 * Check to see whether we have permission to post a message in the current
2422 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2423 * returns 0 on success.
2425 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2427 if (!(CC->logged_in)) {
2428 snprintf(errmsgbuf, n, "Not logged in.");
2429 return (ERROR + NOT_LOGGED_IN);
2432 if ((CC->user.axlevel < 2)
2433 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2434 snprintf(errmsgbuf, n, "Need to be validated to enter "
2435 "(except in %s> to sysop)", MAILROOM);
2436 return (ERROR + HIGHER_ACCESS_REQUIRED);
2439 if ((CC->user.axlevel < 4)
2440 && (CC->room.QRflags & QR_NETWORK)) {
2441 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2442 return (ERROR + HIGHER_ACCESS_REQUIRED);
2445 if ((CC->user.axlevel < 6)
2446 && (CC->room.QRflags & QR_READONLY)) {
2447 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2448 return (ERROR + HIGHER_ACCESS_REQUIRED);
2451 strcpy(errmsgbuf, "Ok");
2457 * Check to see if the specified user has Internet mail permission
2458 * (returns nonzero if permission is granted)
2460 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2462 /* Do not allow twits to send Internet mail */
2463 if (who->axlevel <= 2) return(0);
2465 /* Globally enabled? */
2466 if (config.c_restrict == 0) return(1);
2468 /* User flagged ok? */
2469 if (who->flags & US_INTERNET) return(2);
2471 /* Aide level access? */
2472 if (who->axlevel >= 6) return(3);
2474 /* No mail for you! */
2481 * Validate recipients, count delivery types and errors, and handle aliasing
2482 * FIXME check for dupes!!!!!
2484 struct recptypes *validate_recipients(char *recipients) {
2485 struct recptypes *ret;
2486 char this_recp[SIZ];
2487 char this_recp_cooked[SIZ];
2493 struct ctdluser tempUS;
2494 struct ctdlroom tempQR;
2497 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2498 if (ret == NULL) return(NULL);
2499 memset(ret, 0, sizeof(struct recptypes));
2502 ret->num_internet = 0;
2507 if (recipients == NULL) {
2510 else if (strlen(recipients) == 0) {
2514 /* Change all valid separator characters to commas */
2515 for (i=0; i<strlen(recipients); ++i) {
2516 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2517 recipients[i] = ',';
2522 num_recps = num_tokens(recipients, ',');
2525 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2526 extract_token(this_recp, recipients, i, ',');
2528 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2529 mailtype = alias(this_recp);
2530 mailtype = alias(this_recp);
2531 mailtype = alias(this_recp);
2532 for (j=0; j<=strlen(this_recp); ++j) {
2533 if (this_recp[j]=='_') {
2534 this_recp_cooked[j] = ' ';
2537 this_recp_cooked[j] = this_recp[j];
2543 if (!strcasecmp(this_recp, "sysop")) {
2545 strcpy(this_recp, config.c_aideroom);
2546 if (strlen(ret->recp_room) > 0) {
2547 strcat(ret->recp_room, "|");
2549 strcat(ret->recp_room, this_recp);
2551 else if (getuser(&tempUS, this_recp) == 0) {
2553 strcpy(this_recp, tempUS.fullname);
2554 if (strlen(ret->recp_local) > 0) {
2555 strcat(ret->recp_local, "|");
2557 strcat(ret->recp_local, this_recp);
2559 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2561 strcpy(this_recp, tempUS.fullname);
2562 if (strlen(ret->recp_local) > 0) {
2563 strcat(ret->recp_local, "|");
2565 strcat(ret->recp_local, this_recp);
2567 else if ( (!strncasecmp(this_recp, "room_", 5))
2568 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2570 if (strlen(ret->recp_room) > 0) {
2571 strcat(ret->recp_room, "|");
2573 strcat(ret->recp_room, &this_recp_cooked[5]);
2581 /* Yes, you're reading this correctly: if the target
2582 * domain points back to the local system or an attached
2583 * Citadel directory, the address is invalid. That's
2584 * because if the address were valid, we would have
2585 * already translated it to a local address by now.
2587 if (IsDirectory(this_recp)) {
2592 ++ret->num_internet;
2593 if (strlen(ret->recp_internet) > 0) {
2594 strcat(ret->recp_internet, "|");
2596 strcat(ret->recp_internet, this_recp);
2601 if (strlen(ret->recp_ignet) > 0) {
2602 strcat(ret->recp_ignet, "|");
2604 strcat(ret->recp_ignet, this_recp);
2612 if (strlen(ret->errormsg) == 0) {
2613 snprintf(append, sizeof append,
2614 "Invalid recipient: %s",
2618 snprintf(append, sizeof append,
2621 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2622 strcat(ret->errormsg, append);
2626 if (strlen(ret->display_recp) == 0) {
2627 strcpy(append, this_recp);
2630 snprintf(append, sizeof append, ", %s",
2633 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2634 strcat(ret->display_recp, append);
2639 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2640 ret->num_room + ret->num_error) == 0) {
2642 strcpy(ret->errormsg, "No recipients specified.");
2645 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2646 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2647 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2648 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2649 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2650 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2658 * message entry - mode 0 (normal)
2660 void cmd_ent0(char *entargs)
2664 char masquerade_as[SIZ];
2666 int format_type = 0;
2667 char newusername[SIZ];
2668 struct CtdlMessage *msg;
2672 struct recptypes *valid = NULL;
2675 post = extract_int(entargs, 0);
2676 extract(recp, entargs, 1);
2677 anon_flag = extract_int(entargs, 2);
2678 format_type = extract_int(entargs, 3);
2679 extract(subject, entargs, 4);
2681 /* first check to make sure the request is valid. */
2683 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2685 cprintf("%d %s\n", err, errmsg);
2689 /* Check some other permission type things. */
2692 if (CC->user.axlevel < 6) {
2693 cprintf("%d You don't have permission to masquerade.\n",
2694 ERROR + HIGHER_ACCESS_REQUIRED);
2697 extract(newusername, entargs, 5);
2698 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2699 safestrncpy(CC->fake_postname, newusername,
2700 sizeof(CC->fake_postname) );
2701 cprintf("%d ok\n", CIT_OK);
2704 CC->cs_flags |= CS_POSTING;
2706 /* In the Mail> room we have to behave a little differently --
2707 * make sure the user has specified at least one recipient. Then
2708 * validate the recipient(s).
2710 if ( (CC->room.QRflags & QR_MAILBOX)
2711 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2713 if (CC->user.axlevel < 2) {
2714 strcpy(recp, "sysop");
2717 valid = validate_recipients(recp);
2718 if (valid->num_error > 0) {
2720 ERROR + NO_SUCH_USER, valid->errormsg);
2724 if (valid->num_internet > 0) {
2725 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2726 cprintf("%d You do not have permission "
2727 "to send Internet mail.\n",
2728 ERROR + HIGHER_ACCESS_REQUIRED);
2734 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2735 && (CC->user.axlevel < 4) ) {
2736 cprintf("%d Higher access required for network mail.\n",
2737 ERROR + HIGHER_ACCESS_REQUIRED);
2742 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2743 && ((CC->user.flags & US_INTERNET) == 0)
2744 && (!CC->internal_pgm)) {
2745 cprintf("%d You don't have access to Internet mail.\n",
2746 ERROR + HIGHER_ACCESS_REQUIRED);
2753 /* Is this a room which has anonymous-only or anonymous-option? */
2754 anonymous = MES_NORMAL;
2755 if (CC->room.QRflags & QR_ANONONLY) {
2756 anonymous = MES_ANONONLY;
2758 if (CC->room.QRflags & QR_ANONOPT) {
2759 if (anon_flag == 1) { /* only if the user requested it */
2760 anonymous = MES_ANONOPT;
2764 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2768 /* If we're only checking the validity of the request, return
2769 * success without creating the message.
2772 cprintf("%d %s\n", CIT_OK,
2773 ((valid != NULL) ? valid->display_recp : "") );
2778 /* Handle author masquerading */
2779 if (CC->fake_postname[0]) {
2780 strcpy(masquerade_as, CC->fake_postname);
2782 else if (CC->fake_username[0]) {
2783 strcpy(masquerade_as, CC->fake_username);
2786 strcpy(masquerade_as, "");
2789 /* Read in the message from the client. */
2790 cprintf("%d send message\n", SEND_LISTING);
2791 msg = CtdlMakeMessage(&CC->user, recp,
2792 CC->room.QRname, anonymous, format_type,
2793 masquerade_as, subject, NULL);
2796 CtdlSubmitMsg(msg, valid, "");
2797 CtdlFreeMessage(msg);
2799 CC->fake_postname[0] = '\0';
2807 * API function to delete messages which match a set of criteria
2808 * (returns the actual number of messages deleted)
2810 int CtdlDeleteMessages(char *room_name, /* which room */
2811 long dmsgnum, /* or "0" for any */
2812 char *content_type /* or "" for any */
2816 struct ctdlroom qrbuf;
2817 struct cdbdata *cdbfr;
2818 long *msglist = NULL;
2819 long *dellist = NULL;
2822 int num_deleted = 0;
2824 struct MetaData smi;
2826 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2827 room_name, dmsgnum, content_type);
2829 /* get room record, obtaining a lock... */
2830 if (lgetroom(&qrbuf, room_name) != 0) {
2831 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2833 return (0); /* room not found */
2835 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2837 if (cdbfr != NULL) {
2838 msglist = malloc(cdbfr->len);
2839 dellist = malloc(cdbfr->len);
2840 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2841 num_msgs = cdbfr->len / sizeof(long);
2845 for (i = 0; i < num_msgs; ++i) {
2848 /* Set/clear a bit for each criterion */
2850 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2851 delete_this |= 0x01;
2853 if (strlen(content_type) == 0) {
2854 delete_this |= 0x02;
2856 GetMetaData(&smi, msglist[i]);
2857 if (!strcasecmp(smi.meta_content_type,
2859 delete_this |= 0x02;
2863 /* Delete message only if all bits are set */
2864 if (delete_this == 0x03) {
2865 dellist[num_deleted++] = msglist[i];
2870 num_msgs = sort_msglist(msglist, num_msgs);
2871 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2872 msglist, (num_msgs * sizeof(long)));
2874 qrbuf.QRhighest = msglist[num_msgs - 1];
2878 /* Go through the messages we pulled out of the index, and decrement
2879 * their reference counts by 1. If this is the only room the message
2880 * was in, the reference count will reach zero and the message will
2881 * automatically be deleted from the database. We do this in a
2882 * separate pass because there might be plug-in hooks getting called,
2883 * and we don't want that happening during an S_ROOMS critical
2886 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2887 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2888 AdjRefCount(dellist[i], -1);
2891 /* Now free the memory we used, and go away. */
2892 if (msglist != NULL) free(msglist);
2893 if (dellist != NULL) free(dellist);
2894 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2895 return (num_deleted);
2901 * Check whether the current user has permission to delete messages from
2902 * the current room (returns 1 for yes, 0 for no)
2904 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2905 getuser(&CC->user, CC->curr_user);
2906 if ((CC->user.axlevel < 6)
2907 && (CC->user.usernum != CC->room.QRroomaide)
2908 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2909 && (!(CC->internal_pgm))) {
2918 * Delete message from current room
2920 void cmd_dele(char *delstr)
2925 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2926 cprintf("%d Higher access required.\n",
2927 ERROR + HIGHER_ACCESS_REQUIRED);
2930 delnum = extract_long(delstr, 0);
2932 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2935 cprintf("%d %d message%s deleted.\n", CIT_OK,
2936 num_deleted, ((num_deleted != 1) ? "s" : ""));
2938 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2944 * Back end API function for moves and deletes
2946 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2949 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2950 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2951 if (err != 0) return(err);
2959 * move or copy a message to another room
2961 void cmd_move(char *args)
2965 struct ctdlroom qtemp;
2971 num = extract_long(args, 0);
2972 extract(targ, args, 1);
2973 targ[ROOMNAMELEN - 1] = 0;
2974 is_copy = extract_int(args, 2);
2976 if (getroom(&qtemp, targ) != 0) {
2977 cprintf("%d '%s' does not exist.\n",
2978 ERROR + ROOM_NOT_FOUND, targ);
2982 getuser(&CC->user, CC->curr_user);
2983 ra = CtdlRoomAccess(&qtemp, &CC->user);
2985 /* Check for permission to perform this operation.
2986 * Remember: "CC->room" is source, "qtemp" is target.
2990 /* Aides can move/copy */
2991 if (CC->user.axlevel >= 6) permit = 1;
2993 /* Room aides can move/copy */
2994 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
2996 /* Permit move/copy from personal rooms */
2997 if ((CC->room.QRflags & QR_MAILBOX)
2998 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3000 /* Permit only copy from public to personal room */
3002 && (!(CC->room.QRflags & QR_MAILBOX))
3003 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3005 /* User must have access to target room */
3006 if (!(ra & UA_KNOWN)) permit = 0;
3009 cprintf("%d Higher access required.\n",
3010 ERROR + HIGHER_ACCESS_REQUIRED);
3014 err = CtdlCopyMsgToRoom(num, targ);
3016 cprintf("%d Cannot store message in %s: error %d\n",
3021 /* Now delete the message from the source room,
3022 * if this is a 'move' rather than a 'copy' operation.
3025 CtdlDeleteMessages(CC->room.QRname, num, "");
3028 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3034 * GetMetaData() - Get the supplementary record for a message
3036 void GetMetaData(struct MetaData *smibuf, long msgnum)
3039 struct cdbdata *cdbsmi;
3042 memset(smibuf, 0, sizeof(struct MetaData));
3043 smibuf->meta_msgnum = msgnum;
3044 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3046 /* Use the negative of the message number for its supp record index */
3047 TheIndex = (0L - msgnum);
3049 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3050 if (cdbsmi == NULL) {
3051 return; /* record not found; go with defaults */
3053 memcpy(smibuf, cdbsmi->ptr,
3054 ((cdbsmi->len > sizeof(struct MetaData)) ?
3055 sizeof(struct MetaData) : cdbsmi->len));
3062 * PutMetaData() - (re)write supplementary record for a message
3064 void PutMetaData(struct MetaData *smibuf)
3068 /* Use the negative of the message number for the metadata db index */
3069 TheIndex = (0L - smibuf->meta_msgnum);
3071 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3072 smibuf->meta_msgnum, smibuf->meta_refcount);
3074 cdb_store(CDB_MSGMAIN,
3075 &TheIndex, sizeof(long),
3076 smibuf, sizeof(struct MetaData));
3081 * AdjRefCount - change the reference count for a message;
3082 * delete the message if it reaches zero
3084 void AdjRefCount(long msgnum, int incr)
3087 struct MetaData smi;
3090 /* This is a *tight* critical section; please keep it that way, as
3091 * it may get called while nested in other critical sections.
3092 * Complicating this any further will surely cause deadlock!
3094 begin_critical_section(S_SUPPMSGMAIN);
3095 GetMetaData(&smi, msgnum);
3096 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3097 msgnum, smi.meta_refcount);
3098 smi.meta_refcount += incr;
3100 end_critical_section(S_SUPPMSGMAIN);
3101 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3102 msgnum, smi.meta_refcount);
3104 /* If the reference count is now zero, delete the message
3105 * (and its supplementary record as well).
3107 if (smi.meta_refcount == 0) {
3108 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3110 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3111 cdb_delete(CDB_BIGMSGS, &delnum, sizeof(long));
3113 /* We have to delete the metadata record too! */
3114 delnum = (0L - msgnum);
3115 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3120 * Write a generic object to this room
3122 * Note: this could be much more efficient. Right now we use two temporary
3123 * files, and still pull the message into memory as with all others.
3125 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3126 char *content_type, /* MIME type of this object */
3127 char *tempfilename, /* Where to fetch it from */
3128 struct ctdluser *is_mailbox, /* Mailbox room? */
3129 int is_binary, /* Is encoding necessary? */
3130 int is_unique, /* Del others of this type? */
3131 unsigned int flags /* Internal save flags */
3136 struct ctdlroom qrbuf;
3137 char roomname[ROOMNAMELEN];
3138 struct CtdlMessage *msg;
3140 char *raw_message = NULL;
3141 char *encoded_message = NULL;
3142 off_t raw_length = 0;
3144 if (is_mailbox != NULL)
3145 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3147 safestrncpy(roomname, req_room, sizeof(roomname));
3148 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3151 fp = fopen(tempfilename, "rb");
3153 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3154 tempfilename, strerror(errno));
3157 fseek(fp, 0L, SEEK_END);
3158 raw_length = ftell(fp);
3160 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3162 raw_message = malloc((size_t)raw_length + 2);
3163 fread(raw_message, (size_t)raw_length, 1, fp);
3167 encoded_message = malloc((size_t)
3168 (((raw_length * 134) / 100) + 4096 ) );
3171 encoded_message = malloc((size_t)(raw_length + 4096));
3174 sprintf(encoded_message, "Content-type: %s\n", content_type);
3177 sprintf(&encoded_message[strlen(encoded_message)],
3178 "Content-transfer-encoding: base64\n\n"
3182 sprintf(&encoded_message[strlen(encoded_message)],
3183 "Content-transfer-encoding: 7bit\n\n"
3189 &encoded_message[strlen(encoded_message)],
3195 raw_message[raw_length] = 0;
3197 &encoded_message[strlen(encoded_message)],
3205 lprintf(CTDL_DEBUG, "Allocating\n");
3206 msg = malloc(sizeof(struct CtdlMessage));
3207 memset(msg, 0, sizeof(struct CtdlMessage));
3208 msg->cm_magic = CTDLMESSAGE_MAGIC;
3209 msg->cm_anon_type = MES_NORMAL;
3210 msg->cm_format_type = 4;
3211 msg->cm_fields['A'] = strdup(CC->user.fullname);
3212 msg->cm_fields['O'] = strdup(req_room);
3213 msg->cm_fields['N'] = strdup(config.c_nodename);
3214 msg->cm_fields['H'] = strdup(config.c_humannode);
3215 msg->cm_flags = flags;
3217 msg->cm_fields['M'] = encoded_message;
3219 /* Create the requested room if we have to. */
3220 if (getroom(&qrbuf, roomname) != 0) {
3221 create_room(roomname,
3222 ( (is_mailbox != NULL) ? 5 : 3 ),
3225 /* If the caller specified this object as unique, delete all
3226 * other objects of this type that are currently in the room.
3229 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3230 CtdlDeleteMessages(roomname, 0L, content_type));
3232 /* Now write the data */
3233 CtdlSubmitMsg(msg, NULL, roomname);
3234 CtdlFreeMessage(msg);
3242 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3243 config_msgnum = msgnum;
3247 char *CtdlGetSysConfig(char *sysconfname) {
3248 char hold_rm[ROOMNAMELEN];
3251 struct CtdlMessage *msg;
3254 strcpy(hold_rm, CC->room.QRname);
3255 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3256 getroom(&CC->room, hold_rm);
3261 /* We want the last (and probably only) config in this room */
3262 begin_critical_section(S_CONFIG);
3263 config_msgnum = (-1L);
3264 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3265 CtdlGetSysConfigBackend, NULL);
3266 msgnum = config_msgnum;
3267 end_critical_section(S_CONFIG);
3273 msg = CtdlFetchMessage(msgnum, 1);
3275 conf = strdup(msg->cm_fields['M']);
3276 CtdlFreeMessage(msg);
3283 getroom(&CC->room, hold_rm);
3285 if (conf != NULL) do {
3286 extract_token(buf, conf, 0, '\n');
3287 strcpy(conf, &conf[strlen(buf)+1]);
3288 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3293 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3294 char temp[PATH_MAX];
3297 strcpy(temp, tmpnam(NULL));
3299 fp = fopen(temp, "w");
3300 if (fp == NULL) return;
3301 fprintf(fp, "%s", sysconfdata);
3304 /* this handy API function does all the work for us */
3305 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3311 * Determine whether a given Internet address belongs to the current user
3313 int CtdlIsMe(char *addr) {
3314 struct recptypes *recp;
3317 recp = validate_recipients(addr);
3318 if (recp == NULL) return(0);
3320 if (recp->num_local == 0) {
3325 for (i=0; i<recp->num_local; ++i) {
3326 extract(addr, recp->recp_local, i);
3327 if (!strcasecmp(addr, CC->user.fullname)) {
3339 * Citadel protocol command to do the same
3341 void cmd_isme(char *argbuf) {
3344 if (CtdlAccessCheck(ac_logged_in)) return;
3345 extract(addr, argbuf, 0);
3347 if (CtdlIsMe(addr)) {
3348 cprintf("%d %s\n", CIT_OK, addr);
3351 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);