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,
1804 /* Free the memory we used for the serialized message */
1807 /* Return the *local* message ID to the caller
1808 * (even if we're storing an incoming network message)
1816 * Serialize a struct CtdlMessage into the format used on disk and network.
1818 * This function loads up a "struct ser_ret" (defined in server.h) which
1819 * contains the length of the serialized message and a pointer to the
1820 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1822 void serialize_message(struct ser_ret *ret, /* return values */
1823 struct CtdlMessage *msg) /* unserialized msg */
1827 static char *forder = FORDER;
1829 if (is_valid_message(msg) == 0) return; /* self check */
1832 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1833 ret->len = ret->len +
1834 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1836 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1837 ret->ser = malloc(ret->len);
1838 if (ret->ser == NULL) {
1844 ret->ser[1] = msg->cm_anon_type;
1845 ret->ser[2] = msg->cm_format_type;
1848 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1849 ret->ser[wlen++] = (char)forder[i];
1850 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1851 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1853 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1854 (long)ret->len, (long)wlen);
1862 * Back end for the ReplicationChecks() function
1864 void check_repl(long msgnum, void *userdata) {
1865 struct CtdlMessage *msg;
1866 time_t timestamp = (-1L);
1868 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1869 msg = CtdlFetchMessage(msgnum, 1);
1870 if (msg == NULL) return;
1871 if (msg->cm_fields['T'] != NULL) {
1872 timestamp = atol(msg->cm_fields['T']);
1874 CtdlFreeMessage(msg);
1876 if (timestamp > msg_repl->highest) {
1877 msg_repl->highest = timestamp; /* newer! */
1878 lprintf(CTDL_DEBUG, "newer!\n");
1881 lprintf(CTDL_DEBUG, "older!\n");
1883 /* Existing isn't newer? Then delete the old one(s). */
1884 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1889 * Check to see if any messages already exist which carry the same Extended ID
1893 * -> With older timestamps: delete them and return 0. Message will be saved.
1894 * -> With newer timestamps: return 1. Message save will be aborted.
1896 int ReplicationChecks(struct CtdlMessage *msg) {
1897 struct CtdlMessage *template;
1900 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1901 /* No extended id? Don't do anything. */
1902 if (msg->cm_fields['E'] == NULL) return 0;
1903 if (strlen(msg->cm_fields['E']) == 0) return 0;
1904 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1906 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1907 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1908 msg_repl->highest = atol(msg->cm_fields['T']);
1910 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1911 memset(template, 0, sizeof(struct CtdlMessage));
1912 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1914 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1916 /* If a newer message exists with the same Extended ID, abort
1919 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1923 CtdlFreeMessage(template);
1924 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1932 * Save a message to disk and submit it into the delivery system.
1934 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1935 struct recptypes *recps, /* recipients (if mail) */
1936 char *force /* force a particular room? */
1939 char hold_rm[ROOMNAMELEN];
1940 char actual_rm[ROOMNAMELEN];
1941 char force_room[ROOMNAMELEN];
1942 char content_type[SIZ]; /* We have to learn this */
1943 char recipient[SIZ];
1946 struct ctdluser userbuf;
1948 struct MetaData smi;
1949 FILE *network_fp = NULL;
1950 static int seqnum = 1;
1951 struct CtdlMessage *imsg = NULL;
1954 char *hold_R, *hold_D;
1956 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1957 if (is_valid_message(msg) == 0) return(-1); /* self check */
1959 /* If this message has no timestamp, we take the liberty of
1960 * giving it one, right now.
1962 if (msg->cm_fields['T'] == NULL) {
1963 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1964 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1965 msg->cm_fields['T'] = strdup(aaa);
1968 /* If this message has no path, we generate one.
1970 if (msg->cm_fields['P'] == NULL) {
1971 lprintf(CTDL_DEBUG, "Generating path\n");
1972 if (msg->cm_fields['A'] != NULL) {
1973 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1974 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1975 if (isspace(msg->cm_fields['P'][a])) {
1976 msg->cm_fields['P'][a] = ' ';
1981 msg->cm_fields['P'] = strdup("unknown");
1985 if (force == NULL) {
1986 strcpy(force_room, "");
1989 strcpy(force_room, force);
1992 /* Learn about what's inside, because it's what's inside that counts */
1993 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1994 if (msg->cm_fields['M'] == NULL) {
1995 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1999 switch (msg->cm_format_type) {
2001 strcpy(content_type, "text/x-citadel-variformat");
2004 strcpy(content_type, "text/plain");
2007 strcpy(content_type, "text/plain");
2008 /* advance past header fields */
2009 mptr = msg->cm_fields['M'];
2012 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2013 safestrncpy(content_type, mptr,
2014 sizeof(content_type));
2015 strcpy(content_type, &content_type[14]);
2016 for (a = 0; a < strlen(content_type); ++a)
2017 if ((content_type[a] == ';')
2018 || (content_type[a] == ' ')
2019 || (content_type[a] == 13)
2020 || (content_type[a] == 10))
2021 content_type[a] = 0;
2028 /* Goto the correct room */
2029 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2030 strcpy(hold_rm, CC->room.QRname);
2031 strcpy(actual_rm, CC->room.QRname);
2032 if (recps != NULL) {
2033 strcpy(actual_rm, SENTITEMS);
2036 /* If the user is a twit, move to the twit room for posting */
2037 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2038 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2040 if (CC->user.axlevel == 2) {
2041 strcpy(hold_rm, actual_rm);
2042 strcpy(actual_rm, config.c_twitroom);
2046 /* ...or if this message is destined for Aide> then go there. */
2047 if (strlen(force_room) > 0) {
2048 strcpy(actual_rm, force_room);
2051 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2052 if (strcasecmp(actual_rm, CC->room.QRname)) {
2053 getroom(&CC->room, actual_rm);
2057 * If this message has no O (room) field, generate one.
2059 if (msg->cm_fields['O'] == NULL) {
2060 msg->cm_fields['O'] = strdup(CC->room.QRname);
2063 /* Perform "before save" hooks (aborting if any return nonzero) */
2064 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2065 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2067 /* If this message has an Extended ID, perform replication checks */
2068 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2069 if (ReplicationChecks(msg) > 0) return(-1);
2071 /* Save it to disk */
2072 lprintf(CTDL_DEBUG, "Saving to disk\n");
2073 newmsgid = send_message(msg);
2074 if (newmsgid <= 0L) return(-1);
2076 /* Write a supplemental message info record. This doesn't have to
2077 * be a critical section because nobody else knows about this message
2080 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2081 memset(&smi, 0, sizeof(struct MetaData));
2082 smi.meta_msgnum = newmsgid;
2083 smi.meta_refcount = 0;
2084 safestrncpy(smi.meta_content_type, content_type, 64);
2087 /* Now figure out where to store the pointers */
2088 lprintf(CTDL_DEBUG, "Storing pointers\n");
2090 /* If this is being done by the networker delivering a private
2091 * message, we want to BYPASS saving the sender's copy (because there
2092 * is no local sender; it would otherwise go to the Trashcan).
2094 if ((!CC->internal_pgm) || (recps == NULL)) {
2095 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2096 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2097 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2101 /* For internet mail, drop a copy in the outbound queue room */
2103 if (recps->num_internet > 0) {
2104 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2107 /* If other rooms are specified, drop them there too. */
2109 if (recps->num_room > 0)
2110 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2111 extract(recipient, recps->recp_room, i);
2112 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2113 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2116 /* Bump this user's messages posted counter. */
2117 lprintf(CTDL_DEBUG, "Updating user\n");
2118 lgetuser(&CC->user, CC->curr_user);
2119 CC->user.posted = CC->user.posted + 1;
2120 lputuser(&CC->user);
2122 /* If this is private, local mail, make a copy in the
2123 * recipient's mailbox and bump the reference count.
2126 if (recps->num_local > 0)
2127 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2128 extract(recipient, recps->recp_local, i);
2129 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2131 if (getuser(&userbuf, recipient) == 0) {
2132 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2133 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2134 BumpNewMailCounter(userbuf.usernum);
2137 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2138 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2142 /* Perform "after save" hooks */
2143 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2144 PerformMessageHooks(msg, EVT_AFTERSAVE);
2146 /* For IGnet mail, we have to save a new copy into the spooler for
2147 * each recipient, with the R and D fields set to the recipient and
2148 * destination-node. This has two ugly side effects: all other
2149 * recipients end up being unlisted in this recipient's copy of the
2150 * message, and it has to deliver multiple messages to the same
2151 * node. We'll revisit this again in a year or so when everyone has
2152 * a network spool receiver that can handle the new style messages.
2155 if (recps->num_ignet > 0)
2156 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2157 extract(recipient, recps->recp_ignet, i);
2159 hold_R = msg->cm_fields['R'];
2160 hold_D = msg->cm_fields['D'];
2161 msg->cm_fields['R'] = malloc(SIZ);
2162 msg->cm_fields['D'] = malloc(SIZ);
2163 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2164 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2166 serialize_message(&smr, msg);
2168 snprintf(aaa, sizeof aaa,
2169 "./network/spoolin/netmail.%04lx.%04x.%04x",
2170 (long) getpid(), CC->cs_pid, ++seqnum);
2171 network_fp = fopen(aaa, "wb+");
2172 if (network_fp != NULL) {
2173 fwrite(smr.ser, smr.len, 1, network_fp);
2179 free(msg->cm_fields['R']);
2180 free(msg->cm_fields['D']);
2181 msg->cm_fields['R'] = hold_R;
2182 msg->cm_fields['D'] = hold_D;
2185 /* Go back to the room we started from */
2186 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2187 if (strcasecmp(hold_rm, CC->room.QRname))
2188 getroom(&CC->room, hold_rm);
2190 /* For internet mail, generate delivery instructions.
2191 * Yes, this is recursive. Deal with it. Infinite recursion does
2192 * not happen because the delivery instructions message does not
2193 * contain a recipient.
2196 if (recps->num_internet > 0) {
2197 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2198 instr = malloc(SIZ * 2);
2199 snprintf(instr, SIZ * 2,
2200 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2202 SPOOLMIME, newmsgid, (long)time(NULL),
2203 msg->cm_fields['A'], msg->cm_fields['N']
2206 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2207 size_t tmp = strlen(instr);
2208 extract(recipient, recps->recp_internet, i);
2209 snprintf(&instr[tmp], SIZ * 2 - tmp,
2210 "remote|%s|0||\n", recipient);
2213 imsg = malloc(sizeof(struct CtdlMessage));
2214 memset(imsg, 0, sizeof(struct CtdlMessage));
2215 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2216 imsg->cm_anon_type = MES_NORMAL;
2217 imsg->cm_format_type = FMT_RFC822;
2218 imsg->cm_fields['A'] = strdup("Citadel");
2219 imsg->cm_fields['M'] = instr;
2220 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2221 CtdlFreeMessage(imsg);
2230 * Convenience function for generating small administrative messages.
2232 void quickie_message(char *from, char *to, char *room, char *text,
2233 int format_type, char *subject)
2235 struct CtdlMessage *msg;
2236 struct recptypes *recp = NULL;
2238 msg = malloc(sizeof(struct CtdlMessage));
2239 memset(msg, 0, sizeof(struct CtdlMessage));
2240 msg->cm_magic = CTDLMESSAGE_MAGIC;
2241 msg->cm_anon_type = MES_NORMAL;
2242 msg->cm_format_type = format_type;
2243 msg->cm_fields['A'] = strdup(from);
2244 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2245 msg->cm_fields['N'] = strdup(NODENAME);
2247 msg->cm_fields['R'] = strdup(to);
2248 recp = validate_recipients(to);
2250 if (subject != NULL) {
2251 msg->cm_fields['U'] = strdup(subject);
2253 msg->cm_fields['M'] = strdup(text);
2255 CtdlSubmitMsg(msg, recp, room);
2256 CtdlFreeMessage(msg);
2257 if (recp != NULL) free(recp);
2263 * Back end function used by CtdlMakeMessage() and similar functions
2265 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2266 size_t maxlen, /* maximum message length */
2267 char *exist, /* if non-null, append to it;
2268 exist is ALWAYS freed */
2269 int crlf /* CRLF newlines instead of LF */
2273 size_t message_len = 0;
2274 size_t buffer_len = 0;
2280 if (exist == NULL) {
2287 message_len = strlen(exist);
2288 buffer_len = message_len + 4096;
2289 m = realloc(exist, buffer_len);
2296 /* flush the input if we have nowhere to store it */
2301 /* read in the lines of message text one by one */
2303 if (client_gets(buf) < 1) finished = 1;
2304 if (!strcmp(buf, terminator)) finished = 1;
2306 strcat(buf, "\r\n");
2312 if ( (!flushing) && (!finished) ) {
2313 /* Measure the line */
2314 linelen = strlen(buf);
2316 /* augment the buffer if we have to */
2317 if ((message_len + linelen) >= buffer_len) {
2318 ptr = realloc(m, (buffer_len * 2) );
2319 if (ptr == NULL) { /* flush if can't allocate */
2322 buffer_len = (buffer_len * 2);
2324 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2328 /* Add the new line to the buffer. NOTE: this loop must avoid
2329 * using functions like strcat() and strlen() because they
2330 * traverse the entire buffer upon every call, and doing that
2331 * for a multi-megabyte message slows it down beyond usability.
2333 strcpy(&m[message_len], buf);
2334 message_len += linelen;
2337 /* if we've hit the max msg length, flush the rest */
2338 if (message_len >= maxlen) flushing = 1;
2340 } while (!finished);
2348 * Build a binary message to be saved on disk.
2349 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2350 * will become part of the message. This means you are no longer
2351 * responsible for managing that memory -- it will be freed along with
2352 * the rest of the fields when CtdlFreeMessage() is called.)
2355 struct CtdlMessage *CtdlMakeMessage(
2356 struct ctdluser *author, /* author's user structure */
2357 char *recipient, /* NULL if it's not mail */
2358 char *room, /* room where it's going */
2359 int type, /* see MES_ types in header file */
2360 int format_type, /* variformat, plain text, MIME... */
2361 char *fake_name, /* who we're masquerading as */
2362 char *subject, /* Subject (optional) */
2363 char *preformatted_text /* ...or NULL to read text from client */
2365 char dest_node[SIZ];
2367 struct CtdlMessage *msg;
2369 msg = malloc(sizeof(struct CtdlMessage));
2370 memset(msg, 0, sizeof(struct CtdlMessage));
2371 msg->cm_magic = CTDLMESSAGE_MAGIC;
2372 msg->cm_anon_type = type;
2373 msg->cm_format_type = format_type;
2375 /* Don't confuse the poor folks if it's not routed mail. */
2376 strcpy(dest_node, "");
2380 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2381 msg->cm_fields['P'] = strdup(buf);
2383 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2384 msg->cm_fields['T'] = strdup(buf);
2386 if (fake_name[0]) /* author */
2387 msg->cm_fields['A'] = strdup(fake_name);
2389 msg->cm_fields['A'] = strdup(author->fullname);
2391 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2392 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2395 msg->cm_fields['O'] = strdup(CC->room.QRname);
2398 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2399 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2401 if (recipient[0] != 0) {
2402 msg->cm_fields['R'] = strdup(recipient);
2404 if (dest_node[0] != 0) {
2405 msg->cm_fields['D'] = strdup(dest_node);
2408 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2409 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2412 if (subject != NULL) {
2414 if (strlen(subject) > 0) {
2415 msg->cm_fields['U'] = strdup(subject);
2419 if (preformatted_text != NULL) {
2420 msg->cm_fields['M'] = preformatted_text;
2423 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2424 config.c_maxmsglen, NULL, 0);
2432 * Check to see whether we have permission to post a message in the current
2433 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2434 * returns 0 on success.
2436 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2438 if (!(CC->logged_in)) {
2439 snprintf(errmsgbuf, n, "Not logged in.");
2440 return (ERROR + NOT_LOGGED_IN);
2443 if ((CC->user.axlevel < 2)
2444 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2445 snprintf(errmsgbuf, n, "Need to be validated to enter "
2446 "(except in %s> to sysop)", MAILROOM);
2447 return (ERROR + HIGHER_ACCESS_REQUIRED);
2450 if ((CC->user.axlevel < 4)
2451 && (CC->room.QRflags & QR_NETWORK)) {
2452 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2453 return (ERROR + HIGHER_ACCESS_REQUIRED);
2456 if ((CC->user.axlevel < 6)
2457 && (CC->room.QRflags & QR_READONLY)) {
2458 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2459 return (ERROR + HIGHER_ACCESS_REQUIRED);
2462 strcpy(errmsgbuf, "Ok");
2468 * Check to see if the specified user has Internet mail permission
2469 * (returns nonzero if permission is granted)
2471 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2473 /* Do not allow twits to send Internet mail */
2474 if (who->axlevel <= 2) return(0);
2476 /* Globally enabled? */
2477 if (config.c_restrict == 0) return(1);
2479 /* User flagged ok? */
2480 if (who->flags & US_INTERNET) return(2);
2482 /* Aide level access? */
2483 if (who->axlevel >= 6) return(3);
2485 /* No mail for you! */
2492 * Validate recipients, count delivery types and errors, and handle aliasing
2493 * FIXME check for dupes!!!!!
2495 struct recptypes *validate_recipients(char *recipients) {
2496 struct recptypes *ret;
2497 char this_recp[SIZ];
2498 char this_recp_cooked[SIZ];
2504 struct ctdluser tempUS;
2505 struct ctdlroom tempQR;
2508 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2509 if (ret == NULL) return(NULL);
2510 memset(ret, 0, sizeof(struct recptypes));
2513 ret->num_internet = 0;
2518 if (recipients == NULL) {
2521 else if (strlen(recipients) == 0) {
2525 /* Change all valid separator characters to commas */
2526 for (i=0; i<strlen(recipients); ++i) {
2527 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2528 recipients[i] = ',';
2533 num_recps = num_tokens(recipients, ',');
2536 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2537 extract_token(this_recp, recipients, i, ',');
2539 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2540 mailtype = alias(this_recp);
2541 mailtype = alias(this_recp);
2542 mailtype = alias(this_recp);
2543 for (j=0; j<=strlen(this_recp); ++j) {
2544 if (this_recp[j]=='_') {
2545 this_recp_cooked[j] = ' ';
2548 this_recp_cooked[j] = this_recp[j];
2554 if (!strcasecmp(this_recp, "sysop")) {
2556 strcpy(this_recp, config.c_aideroom);
2557 if (strlen(ret->recp_room) > 0) {
2558 strcat(ret->recp_room, "|");
2560 strcat(ret->recp_room, this_recp);
2562 else if (getuser(&tempUS, this_recp) == 0) {
2564 strcpy(this_recp, tempUS.fullname);
2565 if (strlen(ret->recp_local) > 0) {
2566 strcat(ret->recp_local, "|");
2568 strcat(ret->recp_local, this_recp);
2570 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2572 strcpy(this_recp, tempUS.fullname);
2573 if (strlen(ret->recp_local) > 0) {
2574 strcat(ret->recp_local, "|");
2576 strcat(ret->recp_local, this_recp);
2578 else if ( (!strncasecmp(this_recp, "room_", 5))
2579 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2581 if (strlen(ret->recp_room) > 0) {
2582 strcat(ret->recp_room, "|");
2584 strcat(ret->recp_room, &this_recp_cooked[5]);
2592 /* Yes, you're reading this correctly: if the target
2593 * domain points back to the local system or an attached
2594 * Citadel directory, the address is invalid. That's
2595 * because if the address were valid, we would have
2596 * already translated it to a local address by now.
2598 if (IsDirectory(this_recp)) {
2603 ++ret->num_internet;
2604 if (strlen(ret->recp_internet) > 0) {
2605 strcat(ret->recp_internet, "|");
2607 strcat(ret->recp_internet, this_recp);
2612 if (strlen(ret->recp_ignet) > 0) {
2613 strcat(ret->recp_ignet, "|");
2615 strcat(ret->recp_ignet, this_recp);
2623 if (strlen(ret->errormsg) == 0) {
2624 snprintf(append, sizeof append,
2625 "Invalid recipient: %s",
2629 snprintf(append, sizeof append,
2632 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2633 strcat(ret->errormsg, append);
2637 if (strlen(ret->display_recp) == 0) {
2638 strcpy(append, this_recp);
2641 snprintf(append, sizeof append, ", %s",
2644 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2645 strcat(ret->display_recp, append);
2650 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2651 ret->num_room + ret->num_error) == 0) {
2653 strcpy(ret->errormsg, "No recipients specified.");
2656 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2657 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2658 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2659 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2660 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2661 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2669 * message entry - mode 0 (normal)
2671 void cmd_ent0(char *entargs)
2675 char masquerade_as[SIZ];
2677 int format_type = 0;
2678 char newusername[SIZ];
2679 struct CtdlMessage *msg;
2683 struct recptypes *valid = NULL;
2686 post = extract_int(entargs, 0);
2687 extract(recp, entargs, 1);
2688 anon_flag = extract_int(entargs, 2);
2689 format_type = extract_int(entargs, 3);
2690 extract(subject, entargs, 4);
2692 /* first check to make sure the request is valid. */
2694 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2696 cprintf("%d %s\n", err, errmsg);
2700 /* Check some other permission type things. */
2703 if (CC->user.axlevel < 6) {
2704 cprintf("%d You don't have permission to masquerade.\n",
2705 ERROR + HIGHER_ACCESS_REQUIRED);
2708 extract(newusername, entargs, 5);
2709 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2710 safestrncpy(CC->fake_postname, newusername,
2711 sizeof(CC->fake_postname) );
2712 cprintf("%d ok\n", CIT_OK);
2715 CC->cs_flags |= CS_POSTING;
2717 /* In the Mail> room we have to behave a little differently --
2718 * make sure the user has specified at least one recipient. Then
2719 * validate the recipient(s).
2721 if ( (CC->room.QRflags & QR_MAILBOX)
2722 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2724 if (CC->user.axlevel < 2) {
2725 strcpy(recp, "sysop");
2728 valid = validate_recipients(recp);
2729 if (valid->num_error > 0) {
2731 ERROR + NO_SUCH_USER, valid->errormsg);
2735 if (valid->num_internet > 0) {
2736 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2737 cprintf("%d You do not have permission "
2738 "to send Internet mail.\n",
2739 ERROR + HIGHER_ACCESS_REQUIRED);
2745 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2746 && (CC->user.axlevel < 4) ) {
2747 cprintf("%d Higher access required for network mail.\n",
2748 ERROR + HIGHER_ACCESS_REQUIRED);
2753 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2754 && ((CC->user.flags & US_INTERNET) == 0)
2755 && (!CC->internal_pgm)) {
2756 cprintf("%d You don't have access to Internet mail.\n",
2757 ERROR + HIGHER_ACCESS_REQUIRED);
2764 /* Is this a room which has anonymous-only or anonymous-option? */
2765 anonymous = MES_NORMAL;
2766 if (CC->room.QRflags & QR_ANONONLY) {
2767 anonymous = MES_ANONONLY;
2769 if (CC->room.QRflags & QR_ANONOPT) {
2770 if (anon_flag == 1) { /* only if the user requested it */
2771 anonymous = MES_ANONOPT;
2775 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2779 /* If we're only checking the validity of the request, return
2780 * success without creating the message.
2783 cprintf("%d %s\n", CIT_OK,
2784 ((valid != NULL) ? valid->display_recp : "") );
2789 /* Handle author masquerading */
2790 if (CC->fake_postname[0]) {
2791 strcpy(masquerade_as, CC->fake_postname);
2793 else if (CC->fake_username[0]) {
2794 strcpy(masquerade_as, CC->fake_username);
2797 strcpy(masquerade_as, "");
2800 /* Read in the message from the client. */
2801 cprintf("%d send message\n", SEND_LISTING);
2802 msg = CtdlMakeMessage(&CC->user, recp,
2803 CC->room.QRname, anonymous, format_type,
2804 masquerade_as, subject, NULL);
2807 CtdlSubmitMsg(msg, valid, "");
2808 CtdlFreeMessage(msg);
2810 CC->fake_postname[0] = '\0';
2818 * API function to delete messages which match a set of criteria
2819 * (returns the actual number of messages deleted)
2821 int CtdlDeleteMessages(char *room_name, /* which room */
2822 long dmsgnum, /* or "0" for any */
2823 char *content_type /* or "" for any */
2827 struct ctdlroom qrbuf;
2828 struct cdbdata *cdbfr;
2829 long *msglist = NULL;
2830 long *dellist = NULL;
2833 int num_deleted = 0;
2835 struct MetaData smi;
2837 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2838 room_name, dmsgnum, content_type);
2840 /* get room record, obtaining a lock... */
2841 if (lgetroom(&qrbuf, room_name) != 0) {
2842 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2844 return (0); /* room not found */
2846 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2848 if (cdbfr != NULL) {
2849 msglist = malloc(cdbfr->len);
2850 dellist = malloc(cdbfr->len);
2851 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2852 num_msgs = cdbfr->len / sizeof(long);
2856 for (i = 0; i < num_msgs; ++i) {
2859 /* Set/clear a bit for each criterion */
2861 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2862 delete_this |= 0x01;
2864 if (strlen(content_type) == 0) {
2865 delete_this |= 0x02;
2867 GetMetaData(&smi, msglist[i]);
2868 if (!strcasecmp(smi.meta_content_type,
2870 delete_this |= 0x02;
2874 /* Delete message only if all bits are set */
2875 if (delete_this == 0x03) {
2876 dellist[num_deleted++] = msglist[i];
2881 num_msgs = sort_msglist(msglist, num_msgs);
2882 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2883 msglist, (num_msgs * sizeof(long)));
2885 qrbuf.QRhighest = msglist[num_msgs - 1];
2889 /* Go through the messages we pulled out of the index, and decrement
2890 * their reference counts by 1. If this is the only room the message
2891 * was in, the reference count will reach zero and the message will
2892 * automatically be deleted from the database. We do this in a
2893 * separate pass because there might be plug-in hooks getting called,
2894 * and we don't want that happening during an S_ROOMS critical
2897 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2898 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2899 AdjRefCount(dellist[i], -1);
2902 /* Now free the memory we used, and go away. */
2903 if (msglist != NULL) free(msglist);
2904 if (dellist != NULL) free(dellist);
2905 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2906 return (num_deleted);
2912 * Check whether the current user has permission to delete messages from
2913 * the current room (returns 1 for yes, 0 for no)
2915 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2916 getuser(&CC->user, CC->curr_user);
2917 if ((CC->user.axlevel < 6)
2918 && (CC->user.usernum != CC->room.QRroomaide)
2919 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2920 && (!(CC->internal_pgm))) {
2929 * Delete message from current room
2931 void cmd_dele(char *delstr)
2936 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2937 cprintf("%d Higher access required.\n",
2938 ERROR + HIGHER_ACCESS_REQUIRED);
2941 delnum = extract_long(delstr, 0);
2943 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2946 cprintf("%d %d message%s deleted.\n", CIT_OK,
2947 num_deleted, ((num_deleted != 1) ? "s" : ""));
2949 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2955 * Back end API function for moves and deletes
2957 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2960 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2961 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2962 if (err != 0) return(err);
2970 * move or copy a message to another room
2972 void cmd_move(char *args)
2976 struct ctdlroom qtemp;
2982 num = extract_long(args, 0);
2983 extract(targ, args, 1);
2984 targ[ROOMNAMELEN - 1] = 0;
2985 is_copy = extract_int(args, 2);
2987 if (getroom(&qtemp, targ) != 0) {
2988 cprintf("%d '%s' does not exist.\n",
2989 ERROR + ROOM_NOT_FOUND, targ);
2993 getuser(&CC->user, CC->curr_user);
2994 ra = CtdlRoomAccess(&qtemp, &CC->user);
2996 /* Check for permission to perform this operation.
2997 * Remember: "CC->room" is source, "qtemp" is target.
3001 /* Aides can move/copy */
3002 if (CC->user.axlevel >= 6) permit = 1;
3004 /* Room aides can move/copy */
3005 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3007 /* Permit move/copy from personal rooms */
3008 if ((CC->room.QRflags & QR_MAILBOX)
3009 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3011 /* Permit only copy from public to personal room */
3013 && (!(CC->room.QRflags & QR_MAILBOX))
3014 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3016 /* User must have access to target room */
3017 if (!(ra & UA_KNOWN)) permit = 0;
3020 cprintf("%d Higher access required.\n",
3021 ERROR + HIGHER_ACCESS_REQUIRED);
3025 err = CtdlCopyMsgToRoom(num, targ);
3027 cprintf("%d Cannot store message in %s: error %d\n",
3032 /* Now delete the message from the source room,
3033 * if this is a 'move' rather than a 'copy' operation.
3036 CtdlDeleteMessages(CC->room.QRname, num, "");
3039 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3045 * GetMetaData() - Get the supplementary record for a message
3047 void GetMetaData(struct MetaData *smibuf, long msgnum)
3050 struct cdbdata *cdbsmi;
3053 memset(smibuf, 0, sizeof(struct MetaData));
3054 smibuf->meta_msgnum = msgnum;
3055 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3057 /* Use the negative of the message number for its supp record index */
3058 TheIndex = (0L - msgnum);
3060 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3061 if (cdbsmi == NULL) {
3062 return; /* record not found; go with defaults */
3064 memcpy(smibuf, cdbsmi->ptr,
3065 ((cdbsmi->len > sizeof(struct MetaData)) ?
3066 sizeof(struct MetaData) : cdbsmi->len));
3073 * PutMetaData() - (re)write supplementary record for a message
3075 void PutMetaData(struct MetaData *smibuf)
3079 /* Use the negative of the message number for the metadata db index */
3080 TheIndex = (0L - smibuf->meta_msgnum);
3082 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3083 smibuf->meta_msgnum, smibuf->meta_refcount);
3085 cdb_store(CDB_MSGMAIN,
3086 &TheIndex, sizeof(long),
3087 smibuf, sizeof(struct MetaData));
3092 * AdjRefCount - change the reference count for a message;
3093 * delete the message if it reaches zero
3095 void AdjRefCount(long msgnum, int incr)
3098 struct MetaData smi;
3101 /* This is a *tight* critical section; please keep it that way, as
3102 * it may get called while nested in other critical sections.
3103 * Complicating this any further will surely cause deadlock!
3105 begin_critical_section(S_SUPPMSGMAIN);
3106 GetMetaData(&smi, msgnum);
3107 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3108 msgnum, smi.meta_refcount);
3109 smi.meta_refcount += incr;
3111 end_critical_section(S_SUPPMSGMAIN);
3112 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3113 msgnum, smi.meta_refcount);
3115 /* If the reference count is now zero, delete the message
3116 * (and its supplementary record as well).
3118 if (smi.meta_refcount == 0) {
3119 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3121 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3122 cdb_delete(CDB_BIGMSGS, &delnum, sizeof(long));
3124 /* We have to delete the metadata record too! */
3125 delnum = (0L - msgnum);
3126 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3131 * Write a generic object to this room
3133 * Note: this could be much more efficient. Right now we use two temporary
3134 * files, and still pull the message into memory as with all others.
3136 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3137 char *content_type, /* MIME type of this object */
3138 char *tempfilename, /* Where to fetch it from */
3139 struct ctdluser *is_mailbox, /* Mailbox room? */
3140 int is_binary, /* Is encoding necessary? */
3141 int is_unique, /* Del others of this type? */
3142 unsigned int flags /* Internal save flags */
3147 struct ctdlroom qrbuf;
3148 char roomname[ROOMNAMELEN];
3149 struct CtdlMessage *msg;
3151 char *raw_message = NULL;
3152 char *encoded_message = NULL;
3153 off_t raw_length = 0;
3155 if (is_mailbox != NULL)
3156 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3158 safestrncpy(roomname, req_room, sizeof(roomname));
3159 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3162 fp = fopen(tempfilename, "rb");
3164 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3165 tempfilename, strerror(errno));
3168 fseek(fp, 0L, SEEK_END);
3169 raw_length = ftell(fp);
3171 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3173 raw_message = malloc((size_t)raw_length + 2);
3174 fread(raw_message, (size_t)raw_length, 1, fp);
3178 encoded_message = malloc((size_t)
3179 (((raw_length * 134) / 100) + 4096 ) );
3182 encoded_message = malloc((size_t)(raw_length + 4096));
3185 sprintf(encoded_message, "Content-type: %s\n", content_type);
3188 sprintf(&encoded_message[strlen(encoded_message)],
3189 "Content-transfer-encoding: base64\n\n"
3193 sprintf(&encoded_message[strlen(encoded_message)],
3194 "Content-transfer-encoding: 7bit\n\n"
3200 &encoded_message[strlen(encoded_message)],
3206 raw_message[raw_length] = 0;
3208 &encoded_message[strlen(encoded_message)],
3216 lprintf(CTDL_DEBUG, "Allocating\n");
3217 msg = malloc(sizeof(struct CtdlMessage));
3218 memset(msg, 0, sizeof(struct CtdlMessage));
3219 msg->cm_magic = CTDLMESSAGE_MAGIC;
3220 msg->cm_anon_type = MES_NORMAL;
3221 msg->cm_format_type = 4;
3222 msg->cm_fields['A'] = strdup(CC->user.fullname);
3223 msg->cm_fields['O'] = strdup(req_room);
3224 msg->cm_fields['N'] = strdup(config.c_nodename);
3225 msg->cm_fields['H'] = strdup(config.c_humannode);
3226 msg->cm_flags = flags;
3228 msg->cm_fields['M'] = encoded_message;
3230 /* Create the requested room if we have to. */
3231 if (getroom(&qrbuf, roomname) != 0) {
3232 create_room(roomname,
3233 ( (is_mailbox != NULL) ? 5 : 3 ),
3236 /* If the caller specified this object as unique, delete all
3237 * other objects of this type that are currently in the room.
3240 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3241 CtdlDeleteMessages(roomname, 0L, content_type));
3243 /* Now write the data */
3244 CtdlSubmitMsg(msg, NULL, roomname);
3245 CtdlFreeMessage(msg);
3253 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3254 config_msgnum = msgnum;
3258 char *CtdlGetSysConfig(char *sysconfname) {
3259 char hold_rm[ROOMNAMELEN];
3262 struct CtdlMessage *msg;
3265 strcpy(hold_rm, CC->room.QRname);
3266 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3267 getroom(&CC->room, hold_rm);
3272 /* We want the last (and probably only) config in this room */
3273 begin_critical_section(S_CONFIG);
3274 config_msgnum = (-1L);
3275 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3276 CtdlGetSysConfigBackend, NULL);
3277 msgnum = config_msgnum;
3278 end_critical_section(S_CONFIG);
3284 msg = CtdlFetchMessage(msgnum, 1);
3286 conf = strdup(msg->cm_fields['M']);
3287 CtdlFreeMessage(msg);
3294 getroom(&CC->room, hold_rm);
3296 if (conf != NULL) do {
3297 extract_token(buf, conf, 0, '\n');
3298 strcpy(conf, &conf[strlen(buf)+1]);
3299 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3304 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3305 char temp[PATH_MAX];
3308 strcpy(temp, tmpnam(NULL));
3310 fp = fopen(temp, "w");
3311 if (fp == NULL) return;
3312 fprintf(fp, "%s", sysconfdata);
3315 /* this handy API function does all the work for us */
3316 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3322 * Determine whether a given Internet address belongs to the current user
3324 int CtdlIsMe(char *addr) {
3325 struct recptypes *recp;
3328 recp = validate_recipients(addr);
3329 if (recp == NULL) return(0);
3331 if (recp->num_local == 0) {
3336 for (i=0; i<recp->num_local; ++i) {
3337 extract(addr, recp->recp_local, i);
3338 if (!strcasecmp(addr, CC->user.fullname)) {
3350 * Citadel protocol command to do the same
3352 void cmd_isme(char *argbuf) {
3355 if (CtdlAccessCheck(ac_logged_in)) return;
3356 extract(addr, argbuf, 0);
3358 if (CtdlIsMe(addr)) {
3359 cprintf("%d %s\n", CIT_OK, addr);
3362 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);