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);
567 cprintf("%d Send template then receive message list\n",
569 template = (struct CtdlMessage *)
570 malloc(sizeof(struct CtdlMessage));
571 memset(template, 0, sizeof(struct CtdlMessage));
572 while(client_gets(buf), strcmp(buf,"000")) {
573 extract(tfield, buf, 0);
574 extract(tvalue, buf, 1);
575 for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
576 if (!strcasecmp(tfield, msgkeys[i])) {
577 template->cm_fields[i] =
585 cprintf("%d Message list...\n", LISTING_FOLLOWS);
588 CtdlForEachMessage(mode, cm_ref,
589 NULL, template, simple_listing, NULL);
590 if (template != NULL) CtdlFreeMessage(template);
598 * help_subst() - support routine for help file viewer
600 void help_subst(char *strbuf, char *source, char *dest)
605 while (p = pattern2(strbuf, source), (p >= 0)) {
606 strcpy(workbuf, &strbuf[p + strlen(source)]);
607 strcpy(&strbuf[p], dest);
608 strcat(strbuf, workbuf);
613 void do_help_subst(char *buffer)
617 help_subst(buffer, "^nodename", config.c_nodename);
618 help_subst(buffer, "^humannode", config.c_humannode);
619 help_subst(buffer, "^fqdn", config.c_fqdn);
620 help_subst(buffer, "^username", CC->user.fullname);
621 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
622 help_subst(buffer, "^usernum", buf2);
623 help_subst(buffer, "^sysadm", config.c_sysadm);
624 help_subst(buffer, "^variantname", CITADEL);
625 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
626 help_subst(buffer, "^maxsessions", buf2);
627 help_subst(buffer, "^bbsdir", BBSDIR);
633 * memfmout() - Citadel text formatter and paginator.
634 * Although the original purpose of this routine was to format
635 * text to the reader's screen width, all we're really using it
636 * for here is to format text out to 80 columns before sending it
637 * to the client. The client software may reformat it again.
640 int width, /* screen width to use */
641 char *mptr, /* where are we going to get our text from? */
642 char subst, /* nonzero if we should do substitutions */
643 char *nl) /* string to terminate lines with */
655 c = 1; /* c is the current pos */
659 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
661 buffer[strlen(buffer) + 1] = 0;
662 buffer[strlen(buffer)] = ch;
665 if (buffer[0] == '^')
666 do_help_subst(buffer);
668 buffer[strlen(buffer) + 1] = 0;
670 strcpy(buffer, &buffer[1]);
678 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
680 if (((old == 13) || (old == 10)) && (isspace(real))) {
688 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
689 cprintf("%s%s", nl, aaa);
698 if ((strlen(aaa) + c) > (width - 5)) {
707 if ((ch == 13) || (ch == 10)) {
708 cprintf("%s%s", aaa, nl);
715 cprintf("%s%s", aaa, nl);
721 * Callback function for mime parser that simply lists the part
723 void list_this_part(char *name, char *filename, char *partnum, char *disp,
724 void *content, char *cbtype, size_t length, char *encoding,
728 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
729 name, filename, partnum, disp, cbtype, (long)length);
733 * Callback function for multipart prefix
735 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
736 void *content, char *cbtype, size_t length, char *encoding,
739 cprintf("pref=%s|%s\n", partnum, cbtype);
743 * Callback function for multipart sufffix
745 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
746 void *content, char *cbtype, size_t length, char *encoding,
749 cprintf("suff=%s|%s\n", partnum, cbtype);
754 * Callback function for mime parser that opens a section for downloading
756 void mime_download(char *name, char *filename, char *partnum, char *disp,
757 void *content, char *cbtype, size_t length, char *encoding,
761 /* Silently go away if there's already a download open... */
762 if (CC->download_fp != NULL)
765 /* ...or if this is not the desired section */
766 if (strcasecmp(desired_section, partnum))
769 CC->download_fp = tmpfile();
770 if (CC->download_fp == NULL)
773 fwrite(content, length, 1, CC->download_fp);
774 fflush(CC->download_fp);
775 rewind(CC->download_fp);
777 OpenCmdResult(filename, cbtype);
783 * Load a message from disk into memory.
784 * This is used by CtdlOutputMsg() and other fetch functions.
786 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
787 * using the CtdlMessageFree() function.
789 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
791 struct cdbdata *dmsgtext;
792 struct CtdlMessage *ret = NULL;
795 cit_uint8_t field_header;
798 lprintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
800 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
801 if (dmsgtext == NULL) {
804 mptr = dmsgtext->ptr;
806 /* Parse the three bytes that begin EVERY message on disk.
807 * The first is always 0xFF, the on-disk magic number.
808 * The second is the anonymous/public type byte.
809 * The third is the format type byte (vari, fixed, or MIME).
814 "Message %ld appears to be corrupted.\n",
819 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
820 memset(ret, 0, sizeof(struct CtdlMessage));
822 ret->cm_magic = CTDLMESSAGE_MAGIC;
823 ret->cm_anon_type = *mptr++; /* Anon type byte */
824 ret->cm_format_type = *mptr++; /* Format type byte */
827 * The rest is zero or more arbitrary fields. Load them in.
828 * We're done when we encounter either a zero-length field or
829 * have just processed the 'M' (message text) field.
832 field_length = strlen(mptr);
833 if (field_length == 0)
835 field_header = *mptr++;
836 ret->cm_fields[field_header] = malloc(field_length + 1);
837 strcpy(ret->cm_fields[field_header], mptr);
839 while (*mptr++ != 0); /* advance to next field */
841 } while ((field_length > 0) && (field_header != 'M'));
845 /* Always make sure there's something in the msg text field. If
846 * it's NULL, the message text is most likely stored separately,
847 * so go ahead and fetch that. Failing that, just set a dummy
848 * body so other code doesn't barf.
850 if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
851 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
852 if (dmsgtext != NULL) {
853 ret->cm_fields['M'] = strdup(dmsgtext->ptr);
857 if (ret->cm_fields['M'] == NULL) {
858 ret->cm_fields['M'] = strdup("<no text>\n");
861 /* Perform "before read" hooks (aborting if any return nonzero) */
862 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
863 CtdlFreeMessage(ret);
872 * Returns 1 if the supplied pointer points to a valid Citadel message.
873 * If the pointer is NULL or the magic number check fails, returns 0.
875 int is_valid_message(struct CtdlMessage *msg) {
878 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
879 lprintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
887 * 'Destructor' for struct CtdlMessage
889 void CtdlFreeMessage(struct CtdlMessage *msg)
893 if (is_valid_message(msg) == 0) return;
895 for (i = 0; i < 256; ++i)
896 if (msg->cm_fields[i] != NULL) {
897 free(msg->cm_fields[i]);
900 msg->cm_magic = 0; /* just in case */
906 * Pre callback function for multipart/alternative
908 * NOTE: this differs from the standard behavior for a reason. Normally when
909 * displaying multipart/alternative you want to show the _last_ usable
910 * format in the message. Here we show the _first_ one, because it's
911 * usually text/plain. Since this set of functions is designed for text
912 * output to non-MIME-aware clients, this is the desired behavior.
915 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
916 void *content, char *cbtype, size_t length, char *encoding,
919 lprintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
920 if (!strcasecmp(cbtype, "multipart/alternative")) {
928 * Post callback function for multipart/alternative
930 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
931 void *content, char *cbtype, size_t length, char *encoding,
934 lprintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
935 if (!strcasecmp(cbtype, "multipart/alternative")) {
943 * Inline callback function for mime parser that wants to display text
945 void fixed_output(char *name, char *filename, char *partnum, char *disp,
946 void *content, char *cbtype, size_t length, char *encoding,
953 lprintf(CTDL_DEBUG, "fixed_output() type=<%s>\n", cbtype);
956 * If we're in the middle of a multipart/alternative scope and
957 * we've already printed another section, skip this one.
959 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
960 lprintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
965 if ( (!strcasecmp(cbtype, "text/plain"))
966 || (strlen(cbtype)==0) ) {
969 client_write(wptr, length);
970 if (wptr[length-1] != '\n') {
975 else if (!strcasecmp(cbtype, "text/html")) {
976 ptr = html_to_ascii(content, 80, 0);
978 client_write(ptr, wlen);
979 if (ptr[wlen-1] != '\n') {
984 else if (strncasecmp(cbtype, "multipart/", 10)) {
985 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
986 partnum, filename, cbtype, (long)length);
991 * The client is elegant and sophisticated and wants to be choosy about
992 * MIME content types, so figure out which multipart/alternative part
993 * we're going to send.
995 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
996 void *content, char *cbtype, size_t length, char *encoding,
1002 if (ma->is_ma > 0) {
1003 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1004 extract(buf, CC->preferred_formats, i);
1005 if (!strcasecmp(buf, cbtype)) {
1006 strcpy(ma->chosen_part, partnum);
1013 * Now that we've chosen our preferred part, output it.
1015 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1016 void *content, char *cbtype, size_t length, char *encoding,
1021 int add_newline = 0;
1024 /* This is not the MIME part you're looking for... */
1025 if (strcasecmp(partnum, ma->chosen_part)) return;
1027 /* If the content-type of this part is in our preferred formats
1028 * list, we can simply output it verbatim.
1030 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1031 extract(buf, CC->preferred_formats, i);
1032 if (!strcasecmp(buf, cbtype)) {
1033 /* Yeah! Go! W00t!! */
1035 text_content = (char *)content;
1036 if (text_content[length-1] != '\n') {
1040 cprintf("Content-type: %s\n", cbtype);
1041 cprintf("Content-length: %d\n",
1042 (int)(length + add_newline) );
1043 if (strlen(encoding) > 0) {
1044 cprintf("Content-transfer-encoding: %s\n", encoding);
1047 cprintf("Content-transfer-encoding: 7bit\n");
1050 client_write(content, length);
1051 if (add_newline) cprintf("\n");
1056 /* No translations required or possible: output as text/plain */
1057 cprintf("Content-type: text/plain\n\n");
1058 fixed_output(name, filename, partnum, disp, content, cbtype,
1059 length, encoding, cbuserdata);
1064 * Get a message off disk. (returns om_* values found in msgbase.h)
1067 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1068 int mode, /* how would you like that message? */
1069 int headers_only, /* eschew the message body? */
1070 int do_proto, /* do Citadel protocol responses? */
1071 int crlf /* Use CRLF newlines instead of LF? */
1073 struct CtdlMessage *TheMessage = NULL;
1074 int retcode = om_no_such_msg;
1076 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1079 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1080 if (do_proto) cprintf("%d Not logged in.\n",
1081 ERROR + NOT_LOGGED_IN);
1082 return(om_not_logged_in);
1085 /* FIXME: check message id against msglist for this room */
1088 * Fetch the message from disk. If we're in sooper-fast headers
1089 * only mode, request that we don't even bother loading the body
1092 if (headers_only == HEADERS_FAST) {
1093 TheMessage = CtdlFetchMessage(msg_num, 0);
1096 TheMessage = CtdlFetchMessage(msg_num, 1);
1099 if (TheMessage == NULL) {
1100 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1101 ERROR + MESSAGE_NOT_FOUND, msg_num);
1102 return(om_no_such_msg);
1106 retcode = CtdlOutputPreLoadedMsg(
1107 TheMessage, msg_num, mode,
1108 headers_only, do_proto, crlf);
1111 CtdlFreeMessage(TheMessage);
1118 * Get a message off disk. (returns om_* values found in msgbase.h)
1121 int CtdlOutputPreLoadedMsg(
1122 struct CtdlMessage *TheMessage,
1124 int mode, /* how would you like that message? */
1125 int headers_only, /* eschew the message body? */
1126 int do_proto, /* do Citadel protocol responses? */
1127 int crlf /* Use CRLF newlines instead of LF? */
1133 char display_name[SIZ];
1135 char *nl; /* newline string */
1137 int subject_found = 0;
1139 /* buffers needed for RFC822 translation */
1146 char datestamp[SIZ];
1149 lprintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %ld, %d, %d, %d, %d\n",
1150 ((TheMessage == NULL) ? "NULL" : "not null"),
1152 mode, headers_only, do_proto, crlf);
1155 snprintf(mid, sizeof mid, "%ld", msg_num);
1156 nl = (crlf ? "\r\n" : "\n");
1159 if (!is_valid_message(TheMessage)) {
1161 "ERROR: invalid preloaded message for output\n");
1162 return(om_no_such_msg);
1165 /* Are we downloading a MIME component? */
1167 if (mode == MT_DOWNLOAD) {
1168 if (TheMessage->cm_format_type != FMT_RFC822) {
1170 cprintf("%d This is not a MIME message.\n",
1171 ERROR + ILLEGAL_VALUE);
1172 } else if (CC->download_fp != NULL) {
1173 if (do_proto) cprintf(
1174 "%d You already have a download open.\n",
1175 ERROR + RESOURCE_BUSY);
1177 /* Parse the message text component */
1178 mptr = TheMessage->cm_fields['M'];
1179 mime_parser(mptr, NULL,
1180 *mime_download, NULL, NULL,
1182 /* If there's no file open by this time, the requested
1183 * section wasn't found, so print an error
1185 if (CC->download_fp == NULL) {
1186 if (do_proto) cprintf(
1187 "%d Section %s not found.\n",
1188 ERROR + FILE_NOT_FOUND,
1193 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1197 /* now for the user-mode message reading loops */
1198 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1200 /* Does the caller want to skip the headers? */
1201 if (headers_only == HEADERS_NONE) goto START_TEXT;
1203 /* Tell the client which format type we're using. */
1204 if ( (mode == MT_CITADEL) && (do_proto) ) {
1205 cprintf("type=%d\n", TheMessage->cm_format_type);
1208 /* nhdr=yes means that we're only displaying headers, no body */
1209 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1210 && (mode == MT_CITADEL)
1213 cprintf("nhdr=yes\n");
1216 /* begin header processing loop for Citadel message format */
1219 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1221 strcpy(display_name, "<unknown>");
1222 if (TheMessage->cm_fields['A']) {
1223 strcpy(buf, TheMessage->cm_fields['A']);
1224 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1225 strcpy(display_name, "****");
1227 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1228 strcpy(display_name, "anonymous");
1231 strcpy(display_name, buf);
1233 if ((is_room_aide())
1234 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1235 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1236 size_t tmp = strlen(display_name);
1237 snprintf(&display_name[tmp],
1238 sizeof display_name - tmp,
1243 /* Don't show Internet address for users on the
1244 * local Citadel network.
1247 if (TheMessage->cm_fields['N'] != NULL)
1248 if (strlen(TheMessage->cm_fields['N']) > 0)
1249 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1253 /* Now spew the header fields in the order we like them. */
1254 strcpy(allkeys, FORDER);
1255 for (i=0; i<strlen(allkeys); ++i) {
1256 k = (int) allkeys[i];
1258 if ( (TheMessage->cm_fields[k] != NULL)
1259 && (msgkeys[k] != NULL) ) {
1261 if (do_proto) cprintf("%s=%s\n",
1265 else if ((k == 'F') && (suppress_f)) {
1268 /* Masquerade display name if needed */
1270 if (do_proto) cprintf("%s=%s\n",
1272 TheMessage->cm_fields[k]
1281 /* begin header processing loop for RFC822 transfer format */
1287 strcpy(snode, NODENAME);
1288 strcpy(lnode, HUMANNODE);
1290 if (mode == MT_RFC822) {
1291 for (i = 0; i < 256; ++i) {
1293 if (TheMessage->cm_fields[i]) {
1294 mptr = TheMessage->cm_fields[i];
1298 safestrncpy(luser, mptr, sizeof luser);
1299 safestrncpy(suser, mptr, sizeof suser);
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) {
1327 cprintf("Subject: (no subject)%s", nl);
1332 for (i=0; i<strlen(suser); ++i) {
1333 suser[i] = tolower(suser[i]);
1334 if (!isalnum(suser[i])) suser[i]='_';
1338 if (mode == MT_RFC822) {
1339 if (!strcasecmp(snode, NODENAME)) {
1340 safestrncpy(snode, FQDN, sizeof snode);
1344 /* Construct a fun message id */
1345 cprintf("Message-ID: <%s", mid);
1346 if (strchr(mid, '@')==NULL) {
1347 cprintf("@%s", snode);
1352 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1353 cprintf("From: x@x.org (----)%s", nl);
1355 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1356 cprintf("From: x@x.org (anonymous)%s", nl);
1358 else if (strlen(fuser) > 0) {
1359 cprintf("From: %s (%s)%s", fuser, luser, nl);
1362 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1365 cprintf("Organization: %s%s", lnode, nl);
1368 /* Blank line signifying RFC822 end-of-headers */
1369 if (TheMessage->cm_format_type != FMT_RFC822) {
1374 /* end header processing loop ... at this point, we're in the text */
1377 if (headers_only == HEADERS_FAST) goto DONE;
1378 mptr = TheMessage->cm_fields['M'];
1380 /* Tell the client about the MIME parts in this message */
1381 if (TheMessage->cm_format_type == FMT_RFC822) {
1382 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1383 mime_parser(mptr, NULL,
1389 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1390 /* FIXME ... we have to put some code in here to avoid
1391 * printing duplicate header information when both
1392 * Citadel and RFC822 headers exist. Preference should
1393 * probably be given to the RFC822 headers.
1395 int done_rfc822_hdrs = 0;
1396 while (ch=*(mptr++), ch!=0) {
1401 if (!done_rfc822_hdrs) {
1402 if (headers_only != HEADERS_NONE) {
1407 if (headers_only != HEADERS_ONLY) {
1411 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1412 done_rfc822_hdrs = 1;
1416 if (done_rfc822_hdrs) {
1417 if (headers_only != HEADERS_NONE) {
1422 if (headers_only != HEADERS_ONLY) {
1426 if ((*mptr == 13) || (*mptr == 10)) {
1427 done_rfc822_hdrs = 1;
1435 if (headers_only == HEADERS_ONLY) {
1439 /* signify start of msg text */
1440 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1441 if (do_proto) cprintf("text\n");
1445 /* If the format type on disk is 1 (fixed-format), then we want
1446 * everything to be output completely literally ... regardless of
1447 * what message transfer format is in use.
1450 if (TheMessage->cm_format_type == FMT_FIXED) {
1451 if (mode == MT_MIME) {
1452 cprintf("Content-type: text/plain\n\n");
1455 while (ch = *mptr++, ch > 0) {
1458 if ((ch == 10) || (strlen(buf) > 250)) {
1459 cprintf("%s%s", buf, nl);
1462 buf[strlen(buf) + 1] = 0;
1463 buf[strlen(buf)] = ch;
1466 if (strlen(buf) > 0)
1467 cprintf("%s%s", buf, nl);
1470 /* If the message on disk is format 0 (Citadel vari-format), we
1471 * output using the formatter at 80 columns. This is the final output
1472 * form if the transfer format is RFC822, but if the transfer format
1473 * is Citadel proprietary, it'll still work, because the indentation
1474 * for new paragraphs is correct and the client will reformat the
1475 * message to the reader's screen width.
1478 if (TheMessage->cm_format_type == FMT_CITADEL) {
1479 if (mode == MT_MIME) {
1480 cprintf("Content-type: text/x-citadel-variformat\n\n");
1482 memfmout(80, mptr, 0, nl);
1485 /* If the message on disk is format 4 (MIME), we've gotta hand it
1486 * off to the MIME parser. The client has already been told that
1487 * this message is format 1 (fixed format), so the callback function
1488 * we use will display those parts as-is.
1491 if (TheMessage->cm_format_type == FMT_RFC822) {
1492 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1493 memset(ma, 0, sizeof(struct ma_info));
1495 if (mode == MT_MIME) {
1496 strcpy(ma->chosen_part, "1");
1497 mime_parser(mptr, NULL,
1498 *choose_preferred, *fixed_output_pre,
1499 *fixed_output_post, NULL, 0);
1500 mime_parser(mptr, NULL,
1501 *output_preferred, NULL, NULL, NULL, 0);
1504 mime_parser(mptr, NULL,
1505 *fixed_output, *fixed_output_pre,
1506 *fixed_output_post, NULL, 0);
1510 DONE: /* now we're done */
1511 if (do_proto) cprintf("000\n");
1519 * display a message (mode 0 - Citadel proprietary)
1521 void cmd_msg0(char *cmdbuf)
1524 int headers_only = HEADERS_ALL;
1526 msgid = extract_long(cmdbuf, 0);
1527 headers_only = extract_int(cmdbuf, 1);
1529 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1535 * display a message (mode 2 - RFC822)
1537 void cmd_msg2(char *cmdbuf)
1540 int headers_only = HEADERS_ALL;
1542 msgid = extract_long(cmdbuf, 0);
1543 headers_only = extract_int(cmdbuf, 1);
1545 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1551 * display a message (mode 3 - IGnet raw format - internal programs only)
1553 void cmd_msg3(char *cmdbuf)
1556 struct CtdlMessage *msg;
1559 if (CC->internal_pgm == 0) {
1560 cprintf("%d This command is for internal programs only.\n",
1561 ERROR + HIGHER_ACCESS_REQUIRED);
1565 msgnum = extract_long(cmdbuf, 0);
1566 msg = CtdlFetchMessage(msgnum, 1);
1568 cprintf("%d Message %ld not found.\n",
1569 ERROR + MESSAGE_NOT_FOUND, msgnum);
1573 serialize_message(&smr, msg);
1574 CtdlFreeMessage(msg);
1577 cprintf("%d Unable to serialize message\n",
1578 ERROR + INTERNAL_ERROR);
1582 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1583 client_write((char *)smr.ser, (int)smr.len);
1590 * Display a message using MIME content types
1592 void cmd_msg4(char *cmdbuf)
1596 msgid = extract_long(cmdbuf, 0);
1597 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1603 * Client tells us its preferred message format(s)
1605 void cmd_msgp(char *cmdbuf)
1607 safestrncpy(CC->preferred_formats, cmdbuf,
1608 sizeof(CC->preferred_formats));
1609 cprintf("%d ok\n", CIT_OK);
1614 * Open a component of a MIME message as a download file
1616 void cmd_opna(char *cmdbuf)
1620 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1622 msgid = extract_long(cmdbuf, 0);
1623 extract(desired_section, cmdbuf, 1);
1625 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1630 * Save a message pointer into a specified room
1631 * (Returns 0 for success, nonzero for failure)
1632 * roomname may be NULL to use the current room
1634 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1636 char hold_rm[ROOMNAMELEN];
1637 struct cdbdata *cdbfr;
1640 long highest_msg = 0L;
1641 struct CtdlMessage *msg = NULL;
1643 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1644 roomname, msgid, flags);
1646 strcpy(hold_rm, CC->room.QRname);
1648 /* We may need to check to see if this message is real */
1649 if ( (flags & SM_VERIFY_GOODNESS)
1650 || (flags & SM_DO_REPL_CHECK)
1652 msg = CtdlFetchMessage(msgid, 1);
1653 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1656 /* Perform replication checks if necessary */
1657 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1659 if (getroom(&CC->room,
1660 ((roomname != NULL) ? roomname : CC->room.QRname) )
1662 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1663 if (msg != NULL) CtdlFreeMessage(msg);
1664 return(ERROR + ROOM_NOT_FOUND);
1667 if (ReplicationChecks(msg) != 0) {
1668 getroom(&CC->room, hold_rm);
1669 if (msg != NULL) CtdlFreeMessage(msg);
1671 "Did replication, and newer exists\n");
1676 /* Now the regular stuff */
1677 if (lgetroom(&CC->room,
1678 ((roomname != NULL) ? roomname : CC->room.QRname) )
1680 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1681 if (msg != NULL) CtdlFreeMessage(msg);
1682 return(ERROR + ROOM_NOT_FOUND);
1685 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1686 if (cdbfr == NULL) {
1690 msglist = malloc(cdbfr->len);
1691 if (msglist == NULL)
1692 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1693 num_msgs = cdbfr->len / sizeof(long);
1694 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1699 /* Make sure the message doesn't already exist in this room. It
1700 * is absolutely taboo to have more than one reference to the same
1701 * message in a room.
1703 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1704 if (msglist[i] == msgid) {
1705 lputroom(&CC->room); /* unlock the room */
1706 getroom(&CC->room, hold_rm);
1707 if (msg != NULL) CtdlFreeMessage(msg);
1709 return(ERROR + ALREADY_EXISTS);
1713 /* Now add the new message */
1715 msglist = realloc(msglist, (num_msgs * sizeof(long)));
1717 if (msglist == NULL) {
1718 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1720 msglist[num_msgs - 1] = msgid;
1722 /* Sort the message list, so all the msgid's are in order */
1723 num_msgs = sort_msglist(msglist, num_msgs);
1725 /* Determine the highest message number */
1726 highest_msg = msglist[num_msgs - 1];
1728 /* Write it back to disk. */
1729 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
1730 msglist, (int)(num_msgs * sizeof(long)));
1732 /* Free up the memory we used. */
1735 /* Update the highest-message pointer and unlock the room. */
1736 CC->room.QRhighest = highest_msg;
1737 lputroom(&CC->room);
1738 getroom(&CC->room, hold_rm);
1740 /* Bump the reference count for this message. */
1741 if ((flags & SM_DONT_BUMP_REF)==0) {
1742 AdjRefCount(msgid, +1);
1745 /* Return success. */
1746 if (msg != NULL) CtdlFreeMessage(msg);
1753 * Message base operation to save a new message to the message store
1754 * (returns new message number)
1756 * This is the back end for CtdlSubmitMsg() and should not be directly
1757 * called by server-side modules.
1760 long send_message(struct CtdlMessage *msg) {
1768 /* Get a new message number */
1769 newmsgid = get_new_message_number();
1770 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1772 /* Generate an ID if we don't have one already */
1773 if (msg->cm_fields['I']==NULL) {
1774 msg->cm_fields['I'] = strdup(msgidbuf);
1777 /* If the message is big, set its body aside for storage elsewhere */
1778 if (msg->cm_fields['M'] != NULL) {
1779 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1781 holdM = msg->cm_fields['M'];
1782 msg->cm_fields['M'] = NULL;
1786 /* Serialize our data structure for storage in the database */
1787 serialize_message(&smr, msg);
1790 msg->cm_fields['M'] = holdM;
1794 cprintf("%d Unable to serialize message\n",
1795 ERROR + INTERNAL_ERROR);
1799 /* Write our little bundle of joy into the message base */
1800 if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
1801 smr.ser, smr.len) < 0) {
1802 lprintf(CTDL_ERR, "Can't store message\n");
1806 cdb_store(CDB_BIGMSGS,
1816 /* Free the memory we used for the serialized message */
1819 /* Return the *local* message ID to the caller
1820 * (even if we're storing an incoming network message)
1828 * Serialize a struct CtdlMessage into the format used on disk and network.
1830 * This function loads up a "struct ser_ret" (defined in server.h) which
1831 * contains the length of the serialized message and a pointer to the
1832 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1834 void serialize_message(struct ser_ret *ret, /* return values */
1835 struct CtdlMessage *msg) /* unserialized msg */
1839 static char *forder = FORDER;
1841 if (is_valid_message(msg) == 0) return; /* self check */
1844 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1845 ret->len = ret->len +
1846 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1848 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1849 ret->ser = malloc(ret->len);
1850 if (ret->ser == NULL) {
1856 ret->ser[1] = msg->cm_anon_type;
1857 ret->ser[2] = msg->cm_format_type;
1860 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1861 ret->ser[wlen++] = (char)forder[i];
1862 strcpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1863 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1865 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1866 (long)ret->len, (long)wlen);
1874 * Back end for the ReplicationChecks() function
1876 void check_repl(long msgnum, void *userdata) {
1877 struct CtdlMessage *msg;
1878 time_t timestamp = (-1L);
1880 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1881 msg = CtdlFetchMessage(msgnum, 1);
1882 if (msg == NULL) return;
1883 if (msg->cm_fields['T'] != NULL) {
1884 timestamp = atol(msg->cm_fields['T']);
1886 CtdlFreeMessage(msg);
1888 if (timestamp > msg_repl->highest) {
1889 msg_repl->highest = timestamp; /* newer! */
1890 lprintf(CTDL_DEBUG, "newer!\n");
1893 lprintf(CTDL_DEBUG, "older!\n");
1895 /* Existing isn't newer? Then delete the old one(s). */
1896 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1901 * Check to see if any messages already exist which carry the same Extended ID
1905 * -> With older timestamps: delete them and return 0. Message will be saved.
1906 * -> With newer timestamps: return 1. Message save will be aborted.
1908 int ReplicationChecks(struct CtdlMessage *msg) {
1909 struct CtdlMessage *template;
1912 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1913 /* No extended id? Don't do anything. */
1914 if (msg->cm_fields['E'] == NULL) return 0;
1915 if (strlen(msg->cm_fields['E']) == 0) return 0;
1916 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1918 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1919 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1920 msg_repl->highest = atol(msg->cm_fields['T']);
1922 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1923 memset(template, 0, sizeof(struct CtdlMessage));
1924 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1926 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1928 /* If a newer message exists with the same Extended ID, abort
1931 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1935 CtdlFreeMessage(template);
1936 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1944 * Save a message to disk and submit it into the delivery system.
1946 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1947 struct recptypes *recps, /* recipients (if mail) */
1948 char *force /* force a particular room? */
1951 char hold_rm[ROOMNAMELEN];
1952 char actual_rm[ROOMNAMELEN];
1953 char force_room[ROOMNAMELEN];
1954 char content_type[SIZ]; /* We have to learn this */
1955 char recipient[SIZ];
1958 struct ctdluser userbuf;
1960 struct MetaData smi;
1961 FILE *network_fp = NULL;
1962 static int seqnum = 1;
1963 struct CtdlMessage *imsg = NULL;
1966 char *hold_R, *hold_D;
1968 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1969 if (is_valid_message(msg) == 0) return(-1); /* self check */
1971 /* If this message has no timestamp, we take the liberty of
1972 * giving it one, right now.
1974 if (msg->cm_fields['T'] == NULL) {
1975 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1976 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1977 msg->cm_fields['T'] = strdup(aaa);
1980 /* If this message has no path, we generate one.
1982 if (msg->cm_fields['P'] == NULL) {
1983 lprintf(CTDL_DEBUG, "Generating path\n");
1984 if (msg->cm_fields['A'] != NULL) {
1985 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1986 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1987 if (isspace(msg->cm_fields['P'][a])) {
1988 msg->cm_fields['P'][a] = ' ';
1993 msg->cm_fields['P'] = strdup("unknown");
1997 if (force == NULL) {
1998 strcpy(force_room, "");
2001 strcpy(force_room, force);
2004 /* Learn about what's inside, because it's what's inside that counts */
2005 lprintf(CTDL_DEBUG, "Learning what's inside\n");
2006 if (msg->cm_fields['M'] == NULL) {
2007 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
2011 switch (msg->cm_format_type) {
2013 strcpy(content_type, "text/x-citadel-variformat");
2016 strcpy(content_type, "text/plain");
2019 strcpy(content_type, "text/plain");
2020 /* advance past header fields */
2021 mptr = msg->cm_fields['M'];
2024 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2025 safestrncpy(content_type, mptr,
2026 sizeof(content_type));
2027 strcpy(content_type, &content_type[14]);
2028 for (a = 0; a < strlen(content_type); ++a)
2029 if ((content_type[a] == ';')
2030 || (content_type[a] == ' ')
2031 || (content_type[a] == 13)
2032 || (content_type[a] == 10))
2033 content_type[a] = 0;
2040 /* Goto the correct room */
2041 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2042 strcpy(hold_rm, CC->room.QRname);
2043 strcpy(actual_rm, CC->room.QRname);
2044 if (recps != NULL) {
2045 strcpy(actual_rm, SENTITEMS);
2048 /* If the user is a twit, move to the twit room for posting */
2049 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2050 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2052 if (CC->user.axlevel == 2) {
2053 strcpy(hold_rm, actual_rm);
2054 strcpy(actual_rm, config.c_twitroom);
2058 /* ...or if this message is destined for Aide> then go there. */
2059 if (strlen(force_room) > 0) {
2060 strcpy(actual_rm, force_room);
2063 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2064 if (strcasecmp(actual_rm, CC->room.QRname)) {
2065 getroom(&CC->room, actual_rm);
2069 * If this message has no O (room) field, generate one.
2071 if (msg->cm_fields['O'] == NULL) {
2072 msg->cm_fields['O'] = strdup(CC->room.QRname);
2075 /* Perform "before save" hooks (aborting if any return nonzero) */
2076 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2077 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2079 /* If this message has an Extended ID, perform replication checks */
2080 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2081 if (ReplicationChecks(msg) > 0) return(-1);
2083 /* Save it to disk */
2084 lprintf(CTDL_DEBUG, "Saving to disk\n");
2085 newmsgid = send_message(msg);
2086 if (newmsgid <= 0L) return(-1);
2088 /* Write a supplemental message info record. This doesn't have to
2089 * be a critical section because nobody else knows about this message
2092 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2093 memset(&smi, 0, sizeof(struct MetaData));
2094 smi.meta_msgnum = newmsgid;
2095 smi.meta_refcount = 0;
2096 safestrncpy(smi.meta_content_type, content_type, 64);
2099 /* Now figure out where to store the pointers */
2100 lprintf(CTDL_DEBUG, "Storing pointers\n");
2102 /* If this is being done by the networker delivering a private
2103 * message, we want to BYPASS saving the sender's copy (because there
2104 * is no local sender; it would otherwise go to the Trashcan).
2106 if ((!CC->internal_pgm) || (recps == NULL)) {
2107 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2108 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2109 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2113 /* For internet mail, drop a copy in the outbound queue room */
2115 if (recps->num_internet > 0) {
2116 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2119 /* If other rooms are specified, drop them there too. */
2121 if (recps->num_room > 0)
2122 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2123 extract(recipient, recps->recp_room, i);
2124 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2125 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2128 /* Bump this user's messages posted counter. */
2129 lprintf(CTDL_DEBUG, "Updating user\n");
2130 lgetuser(&CC->user, CC->curr_user);
2131 CC->user.posted = CC->user.posted + 1;
2132 lputuser(&CC->user);
2134 /* If this is private, local mail, make a copy in the
2135 * recipient's mailbox and bump the reference count.
2138 if (recps->num_local > 0)
2139 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2140 extract(recipient, recps->recp_local, i);
2141 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2143 if (getuser(&userbuf, recipient) == 0) {
2144 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2145 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2146 BumpNewMailCounter(userbuf.usernum);
2149 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2150 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2154 /* Perform "after save" hooks */
2155 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2156 PerformMessageHooks(msg, EVT_AFTERSAVE);
2158 /* For IGnet mail, we have to save a new copy into the spooler for
2159 * each recipient, with the R and D fields set to the recipient and
2160 * destination-node. This has two ugly side effects: all other
2161 * recipients end up being unlisted in this recipient's copy of the
2162 * message, and it has to deliver multiple messages to the same
2163 * node. We'll revisit this again in a year or so when everyone has
2164 * a network spool receiver that can handle the new style messages.
2167 if (recps->num_ignet > 0)
2168 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2169 extract(recipient, recps->recp_ignet, i);
2171 hold_R = msg->cm_fields['R'];
2172 hold_D = msg->cm_fields['D'];
2173 msg->cm_fields['R'] = malloc(SIZ);
2174 msg->cm_fields['D'] = malloc(SIZ);
2175 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2176 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2178 serialize_message(&smr, msg);
2180 snprintf(aaa, sizeof aaa,
2181 "./network/spoolin/netmail.%04lx.%04x.%04x",
2182 (long) getpid(), CC->cs_pid, ++seqnum);
2183 network_fp = fopen(aaa, "wb+");
2184 if (network_fp != NULL) {
2185 fwrite(smr.ser, smr.len, 1, network_fp);
2191 free(msg->cm_fields['R']);
2192 free(msg->cm_fields['D']);
2193 msg->cm_fields['R'] = hold_R;
2194 msg->cm_fields['D'] = hold_D;
2197 /* Go back to the room we started from */
2198 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2199 if (strcasecmp(hold_rm, CC->room.QRname))
2200 getroom(&CC->room, hold_rm);
2202 /* For internet mail, generate delivery instructions.
2203 * Yes, this is recursive. Deal with it. Infinite recursion does
2204 * not happen because the delivery instructions message does not
2205 * contain a recipient.
2208 if (recps->num_internet > 0) {
2209 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2210 instr = malloc(SIZ * 2);
2211 snprintf(instr, SIZ * 2,
2212 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2214 SPOOLMIME, newmsgid, (long)time(NULL),
2215 msg->cm_fields['A'], msg->cm_fields['N']
2218 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2219 size_t tmp = strlen(instr);
2220 extract(recipient, recps->recp_internet, i);
2221 snprintf(&instr[tmp], SIZ * 2 - tmp,
2222 "remote|%s|0||\n", recipient);
2225 imsg = malloc(sizeof(struct CtdlMessage));
2226 memset(imsg, 0, sizeof(struct CtdlMessage));
2227 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2228 imsg->cm_anon_type = MES_NORMAL;
2229 imsg->cm_format_type = FMT_RFC822;
2230 imsg->cm_fields['A'] = strdup("Citadel");
2231 imsg->cm_fields['M'] = instr;
2232 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2233 CtdlFreeMessage(imsg);
2242 * Convenience function for generating small administrative messages.
2244 void quickie_message(char *from, char *to, char *room, char *text,
2245 int format_type, char *subject)
2247 struct CtdlMessage *msg;
2248 struct recptypes *recp = NULL;
2250 msg = malloc(sizeof(struct CtdlMessage));
2251 memset(msg, 0, sizeof(struct CtdlMessage));
2252 msg->cm_magic = CTDLMESSAGE_MAGIC;
2253 msg->cm_anon_type = MES_NORMAL;
2254 msg->cm_format_type = format_type;
2255 msg->cm_fields['A'] = strdup(from);
2256 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2257 msg->cm_fields['N'] = strdup(NODENAME);
2259 msg->cm_fields['R'] = strdup(to);
2260 recp = validate_recipients(to);
2262 if (subject != NULL) {
2263 msg->cm_fields['U'] = strdup(subject);
2265 msg->cm_fields['M'] = strdup(text);
2267 CtdlSubmitMsg(msg, recp, room);
2268 CtdlFreeMessage(msg);
2269 if (recp != NULL) free(recp);
2275 * Back end function used by CtdlMakeMessage() and similar functions
2277 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2278 size_t maxlen, /* maximum message length */
2279 char *exist, /* if non-null, append to it;
2280 exist is ALWAYS freed */
2281 int crlf /* CRLF newlines instead of LF */
2285 size_t message_len = 0;
2286 size_t buffer_len = 0;
2292 if (exist == NULL) {
2299 message_len = strlen(exist);
2300 buffer_len = message_len + 4096;
2301 m = realloc(exist, buffer_len);
2308 /* flush the input if we have nowhere to store it */
2313 /* read in the lines of message text one by one */
2315 if (client_gets(buf) < 1) finished = 1;
2316 if (!strcmp(buf, terminator)) finished = 1;
2318 strcat(buf, "\r\n");
2324 if ( (!flushing) && (!finished) ) {
2325 /* Measure the line */
2326 linelen = strlen(buf);
2328 /* augment the buffer if we have to */
2329 if ((message_len + linelen) >= buffer_len) {
2330 ptr = realloc(m, (buffer_len * 2) );
2331 if (ptr == NULL) { /* flush if can't allocate */
2334 buffer_len = (buffer_len * 2);
2336 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2340 /* Add the new line to the buffer. NOTE: this loop must avoid
2341 * using functions like strcat() and strlen() because they
2342 * traverse the entire buffer upon every call, and doing that
2343 * for a multi-megabyte message slows it down beyond usability.
2345 strcpy(&m[message_len], buf);
2346 message_len += linelen;
2349 /* if we've hit the max msg length, flush the rest */
2350 if (message_len >= maxlen) flushing = 1;
2352 } while (!finished);
2360 * Build a binary message to be saved on disk.
2361 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2362 * will become part of the message. This means you are no longer
2363 * responsible for managing that memory -- it will be freed along with
2364 * the rest of the fields when CtdlFreeMessage() is called.)
2367 struct CtdlMessage *CtdlMakeMessage(
2368 struct ctdluser *author, /* author's user structure */
2369 char *recipient, /* NULL if it's not mail */
2370 char *room, /* room where it's going */
2371 int type, /* see MES_ types in header file */
2372 int format_type, /* variformat, plain text, MIME... */
2373 char *fake_name, /* who we're masquerading as */
2374 char *subject, /* Subject (optional) */
2375 char *preformatted_text /* ...or NULL to read text from client */
2377 char dest_node[SIZ];
2379 struct CtdlMessage *msg;
2381 msg = malloc(sizeof(struct CtdlMessage));
2382 memset(msg, 0, sizeof(struct CtdlMessage));
2383 msg->cm_magic = CTDLMESSAGE_MAGIC;
2384 msg->cm_anon_type = type;
2385 msg->cm_format_type = format_type;
2387 /* Don't confuse the poor folks if it's not routed mail. */
2388 strcpy(dest_node, "");
2392 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2393 msg->cm_fields['P'] = strdup(buf);
2395 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2396 msg->cm_fields['T'] = strdup(buf);
2398 if (fake_name[0]) /* author */
2399 msg->cm_fields['A'] = strdup(fake_name);
2401 msg->cm_fields['A'] = strdup(author->fullname);
2403 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2404 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2407 msg->cm_fields['O'] = strdup(CC->room.QRname);
2410 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2411 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2413 if (recipient[0] != 0) {
2414 msg->cm_fields['R'] = strdup(recipient);
2416 if (dest_node[0] != 0) {
2417 msg->cm_fields['D'] = strdup(dest_node);
2420 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2421 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2424 if (subject != NULL) {
2426 if (strlen(subject) > 0) {
2427 msg->cm_fields['U'] = strdup(subject);
2431 if (preformatted_text != NULL) {
2432 msg->cm_fields['M'] = preformatted_text;
2435 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2436 config.c_maxmsglen, NULL, 0);
2444 * Check to see whether we have permission to post a message in the current
2445 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2446 * returns 0 on success.
2448 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2450 if (!(CC->logged_in)) {
2451 snprintf(errmsgbuf, n, "Not logged in.");
2452 return (ERROR + NOT_LOGGED_IN);
2455 if ((CC->user.axlevel < 2)
2456 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2457 snprintf(errmsgbuf, n, "Need to be validated to enter "
2458 "(except in %s> to sysop)", MAILROOM);
2459 return (ERROR + HIGHER_ACCESS_REQUIRED);
2462 if ((CC->user.axlevel < 4)
2463 && (CC->room.QRflags & QR_NETWORK)) {
2464 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2465 return (ERROR + HIGHER_ACCESS_REQUIRED);
2468 if ((CC->user.axlevel < 6)
2469 && (CC->room.QRflags & QR_READONLY)) {
2470 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2471 return (ERROR + HIGHER_ACCESS_REQUIRED);
2474 strcpy(errmsgbuf, "Ok");
2480 * Check to see if the specified user has Internet mail permission
2481 * (returns nonzero if permission is granted)
2483 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2485 /* Do not allow twits to send Internet mail */
2486 if (who->axlevel <= 2) return(0);
2488 /* Globally enabled? */
2489 if (config.c_restrict == 0) return(1);
2491 /* User flagged ok? */
2492 if (who->flags & US_INTERNET) return(2);
2494 /* Aide level access? */
2495 if (who->axlevel >= 6) return(3);
2497 /* No mail for you! */
2504 * Validate recipients, count delivery types and errors, and handle aliasing
2505 * FIXME check for dupes!!!!!
2507 struct recptypes *validate_recipients(char *recipients) {
2508 struct recptypes *ret;
2509 char this_recp[SIZ];
2510 char this_recp_cooked[SIZ];
2516 struct ctdluser tempUS;
2517 struct ctdlroom tempQR;
2520 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2521 if (ret == NULL) return(NULL);
2522 memset(ret, 0, sizeof(struct recptypes));
2525 ret->num_internet = 0;
2530 if (recipients == NULL) {
2533 else if (strlen(recipients) == 0) {
2537 /* Change all valid separator characters to commas */
2538 for (i=0; i<strlen(recipients); ++i) {
2539 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2540 recipients[i] = ',';
2545 num_recps = num_tokens(recipients, ',');
2548 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2549 extract_token(this_recp, recipients, i, ',');
2551 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2552 mailtype = alias(this_recp);
2553 mailtype = alias(this_recp);
2554 mailtype = alias(this_recp);
2555 for (j=0; j<=strlen(this_recp); ++j) {
2556 if (this_recp[j]=='_') {
2557 this_recp_cooked[j] = ' ';
2560 this_recp_cooked[j] = this_recp[j];
2566 if (!strcasecmp(this_recp, "sysop")) {
2568 strcpy(this_recp, config.c_aideroom);
2569 if (strlen(ret->recp_room) > 0) {
2570 strcat(ret->recp_room, "|");
2572 strcat(ret->recp_room, this_recp);
2574 else if (getuser(&tempUS, this_recp) == 0) {
2576 strcpy(this_recp, tempUS.fullname);
2577 if (strlen(ret->recp_local) > 0) {
2578 strcat(ret->recp_local, "|");
2580 strcat(ret->recp_local, this_recp);
2582 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2584 strcpy(this_recp, tempUS.fullname);
2585 if (strlen(ret->recp_local) > 0) {
2586 strcat(ret->recp_local, "|");
2588 strcat(ret->recp_local, this_recp);
2590 else if ( (!strncasecmp(this_recp, "room_", 5))
2591 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2593 if (strlen(ret->recp_room) > 0) {
2594 strcat(ret->recp_room, "|");
2596 strcat(ret->recp_room, &this_recp_cooked[5]);
2604 /* Yes, you're reading this correctly: if the target
2605 * domain points back to the local system or an attached
2606 * Citadel directory, the address is invalid. That's
2607 * because if the address were valid, we would have
2608 * already translated it to a local address by now.
2610 if (IsDirectory(this_recp)) {
2615 ++ret->num_internet;
2616 if (strlen(ret->recp_internet) > 0) {
2617 strcat(ret->recp_internet, "|");
2619 strcat(ret->recp_internet, this_recp);
2624 if (strlen(ret->recp_ignet) > 0) {
2625 strcat(ret->recp_ignet, "|");
2627 strcat(ret->recp_ignet, this_recp);
2635 if (strlen(ret->errormsg) == 0) {
2636 snprintf(append, sizeof append,
2637 "Invalid recipient: %s",
2641 snprintf(append, sizeof append,
2644 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2645 strcat(ret->errormsg, append);
2649 if (strlen(ret->display_recp) == 0) {
2650 strcpy(append, this_recp);
2653 snprintf(append, sizeof append, ", %s",
2656 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2657 strcat(ret->display_recp, append);
2662 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2663 ret->num_room + ret->num_error) == 0) {
2665 strcpy(ret->errormsg, "No recipients specified.");
2668 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2669 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2670 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2671 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2672 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2673 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2681 * message entry - mode 0 (normal)
2683 void cmd_ent0(char *entargs)
2687 char masquerade_as[SIZ];
2689 int format_type = 0;
2690 char newusername[SIZ];
2691 struct CtdlMessage *msg;
2695 struct recptypes *valid = NULL;
2700 post = extract_int(entargs, 0);
2701 extract(recp, entargs, 1);
2702 anon_flag = extract_int(entargs, 2);
2703 format_type = extract_int(entargs, 3);
2704 extract(subject, entargs, 4);
2706 /* first check to make sure the request is valid. */
2708 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2710 cprintf("%d %s\n", err, errmsg);
2714 /* Check some other permission type things. */
2717 if (CC->user.axlevel < 6) {
2718 cprintf("%d You don't have permission to masquerade.\n",
2719 ERROR + HIGHER_ACCESS_REQUIRED);
2722 extract(newusername, entargs, 5);
2723 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2724 safestrncpy(CC->fake_postname, newusername,
2725 sizeof(CC->fake_postname) );
2726 cprintf("%d ok\n", CIT_OK);
2729 CC->cs_flags |= CS_POSTING;
2731 /* In the Mail> room we have to behave a little differently --
2732 * make sure the user has specified at least one recipient. Then
2733 * validate the recipient(s).
2735 if ( (CC->room.QRflags & QR_MAILBOX)
2736 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2738 if (CC->user.axlevel < 2) {
2739 strcpy(recp, "sysop");
2742 valid = validate_recipients(recp);
2743 if (valid->num_error > 0) {
2745 ERROR + NO_SUCH_USER, valid->errormsg);
2749 if (valid->num_internet > 0) {
2750 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2751 cprintf("%d You do not have permission "
2752 "to send Internet mail.\n",
2753 ERROR + HIGHER_ACCESS_REQUIRED);
2759 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2760 && (CC->user.axlevel < 4) ) {
2761 cprintf("%d Higher access required for network mail.\n",
2762 ERROR + HIGHER_ACCESS_REQUIRED);
2767 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2768 && ((CC->user.flags & US_INTERNET) == 0)
2769 && (!CC->internal_pgm)) {
2770 cprintf("%d You don't have access to Internet mail.\n",
2771 ERROR + HIGHER_ACCESS_REQUIRED);
2778 /* Is this a room which has anonymous-only or anonymous-option? */
2779 anonymous = MES_NORMAL;
2780 if (CC->room.QRflags & QR_ANONONLY) {
2781 anonymous = MES_ANONONLY;
2783 if (CC->room.QRflags & QR_ANONOPT) {
2784 if (anon_flag == 1) { /* only if the user requested it */
2785 anonymous = MES_ANONOPT;
2789 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2793 /* If we're only checking the validity of the request, return
2794 * success without creating the message.
2797 cprintf("%d %s\n", CIT_OK,
2798 ((valid != NULL) ? valid->display_recp : "") );
2803 /* Handle author masquerading */
2804 if (CC->fake_postname[0]) {
2805 strcpy(masquerade_as, CC->fake_postname);
2807 else if (CC->fake_username[0]) {
2808 strcpy(masquerade_as, CC->fake_username);
2811 strcpy(masquerade_as, "");
2814 /* Read in the message from the client. */
2815 cprintf("%d send message\n", SEND_LISTING);
2816 msg = CtdlMakeMessage(&CC->user, recp,
2817 CC->room.QRname, anonymous, format_type,
2818 masquerade_as, subject, NULL);
2821 CtdlSubmitMsg(msg, valid, "");
2822 CtdlFreeMessage(msg);
2824 CC->fake_postname[0] = '\0';
2832 * API function to delete messages which match a set of criteria
2833 * (returns the actual number of messages deleted)
2835 int CtdlDeleteMessages(char *room_name, /* which room */
2836 long dmsgnum, /* or "0" for any */
2837 char *content_type /* or "" for any */
2841 struct ctdlroom qrbuf;
2842 struct cdbdata *cdbfr;
2843 long *msglist = NULL;
2844 long *dellist = NULL;
2847 int num_deleted = 0;
2849 struct MetaData smi;
2851 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2852 room_name, dmsgnum, content_type);
2854 /* get room record, obtaining a lock... */
2855 if (lgetroom(&qrbuf, room_name) != 0) {
2856 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2858 return (0); /* room not found */
2860 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2862 if (cdbfr != NULL) {
2863 msglist = malloc(cdbfr->len);
2864 dellist = malloc(cdbfr->len);
2865 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2866 num_msgs = cdbfr->len / sizeof(long);
2870 for (i = 0; i < num_msgs; ++i) {
2873 /* Set/clear a bit for each criterion */
2875 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2876 delete_this |= 0x01;
2878 if (strlen(content_type) == 0) {
2879 delete_this |= 0x02;
2881 GetMetaData(&smi, msglist[i]);
2882 if (!strcasecmp(smi.meta_content_type,
2884 delete_this |= 0x02;
2888 /* Delete message only if all bits are set */
2889 if (delete_this == 0x03) {
2890 dellist[num_deleted++] = msglist[i];
2895 num_msgs = sort_msglist(msglist, num_msgs);
2896 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
2897 msglist, (int)(num_msgs * sizeof(long)));
2899 qrbuf.QRhighest = msglist[num_msgs - 1];
2903 /* Go through the messages we pulled out of the index, and decrement
2904 * their reference counts by 1. If this is the only room the message
2905 * was in, the reference count will reach zero and the message will
2906 * automatically be deleted from the database. We do this in a
2907 * separate pass because there might be plug-in hooks getting called,
2908 * and we don't want that happening during an S_ROOMS critical
2911 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2912 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2913 AdjRefCount(dellist[i], -1);
2916 /* Now free the memory we used, and go away. */
2917 if (msglist != NULL) free(msglist);
2918 if (dellist != NULL) free(dellist);
2919 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2920 return (num_deleted);
2926 * Check whether the current user has permission to delete messages from
2927 * the current room (returns 1 for yes, 0 for no)
2929 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2930 getuser(&CC->user, CC->curr_user);
2931 if ((CC->user.axlevel < 6)
2932 && (CC->user.usernum != CC->room.QRroomaide)
2933 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2934 && (!(CC->internal_pgm))) {
2943 * Delete message from current room
2945 void cmd_dele(char *delstr)
2950 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2951 cprintf("%d Higher access required.\n",
2952 ERROR + HIGHER_ACCESS_REQUIRED);
2955 delnum = extract_long(delstr, 0);
2957 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2960 cprintf("%d %d message%s deleted.\n", CIT_OK,
2961 num_deleted, ((num_deleted != 1) ? "s" : ""));
2963 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2969 * Back end API function for moves and deletes
2971 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2974 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2975 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2976 if (err != 0) return(err);
2984 * move or copy a message to another room
2986 void cmd_move(char *args)
2990 struct ctdlroom qtemp;
2996 num = extract_long(args, 0);
2997 extract(targ, args, 1);
2998 targ[ROOMNAMELEN - 1] = 0;
2999 is_copy = extract_int(args, 2);
3001 if (getroom(&qtemp, targ) != 0) {
3002 cprintf("%d '%s' does not exist.\n",
3003 ERROR + ROOM_NOT_FOUND, targ);
3007 getuser(&CC->user, CC->curr_user);
3008 ra = CtdlRoomAccess(&qtemp, &CC->user);
3010 /* Check for permission to perform this operation.
3011 * Remember: "CC->room" is source, "qtemp" is target.
3015 /* Aides can move/copy */
3016 if (CC->user.axlevel >= 6) permit = 1;
3018 /* Room aides can move/copy */
3019 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3021 /* Permit move/copy from personal rooms */
3022 if ((CC->room.QRflags & QR_MAILBOX)
3023 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3025 /* Permit only copy from public to personal room */
3027 && (!(CC->room.QRflags & QR_MAILBOX))
3028 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3030 /* User must have access to target room */
3031 if (!(ra & UA_KNOWN)) permit = 0;
3034 cprintf("%d Higher access required.\n",
3035 ERROR + HIGHER_ACCESS_REQUIRED);
3039 err = CtdlCopyMsgToRoom(num, targ);
3041 cprintf("%d Cannot store message in %s: error %d\n",
3046 /* Now delete the message from the source room,
3047 * if this is a 'move' rather than a 'copy' operation.
3050 CtdlDeleteMessages(CC->room.QRname, num, "");
3053 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3059 * GetMetaData() - Get the supplementary record for a message
3061 void GetMetaData(struct MetaData *smibuf, long msgnum)
3064 struct cdbdata *cdbsmi;
3067 memset(smibuf, 0, sizeof(struct MetaData));
3068 smibuf->meta_msgnum = msgnum;
3069 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3071 /* Use the negative of the message number for its supp record index */
3072 TheIndex = (0L - msgnum);
3074 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3075 if (cdbsmi == NULL) {
3076 return; /* record not found; go with defaults */
3078 memcpy(smibuf, cdbsmi->ptr,
3079 ((cdbsmi->len > sizeof(struct MetaData)) ?
3080 sizeof(struct MetaData) : cdbsmi->len));
3087 * PutMetaData() - (re)write supplementary record for a message
3089 void PutMetaData(struct MetaData *smibuf)
3093 /* Use the negative of the message number for the metadata db index */
3094 TheIndex = (0L - smibuf->meta_msgnum);
3096 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3097 smibuf->meta_msgnum, smibuf->meta_refcount);
3099 cdb_store(CDB_MSGMAIN,
3100 &TheIndex, (int)sizeof(long),
3101 smibuf, (int)sizeof(struct MetaData));
3106 * AdjRefCount - change the reference count for a message;
3107 * delete the message if it reaches zero
3109 void AdjRefCount(long msgnum, int incr)
3112 struct MetaData smi;
3115 /* This is a *tight* critical section; please keep it that way, as
3116 * it may get called while nested in other critical sections.
3117 * Complicating this any further will surely cause deadlock!
3119 begin_critical_section(S_SUPPMSGMAIN);
3120 GetMetaData(&smi, msgnum);
3121 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3122 msgnum, smi.meta_refcount);
3123 smi.meta_refcount += incr;
3125 end_critical_section(S_SUPPMSGMAIN);
3126 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3127 msgnum, smi.meta_refcount);
3129 /* If the reference count is now zero, delete the message
3130 * (and its supplementary record as well).
3132 if (smi.meta_refcount == 0) {
3133 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3135 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3136 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
3138 /* We have to delete the metadata record too! */
3139 delnum = (0L - msgnum);
3140 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3145 * Write a generic object to this room
3147 * Note: this could be much more efficient. Right now we use two temporary
3148 * files, and still pull the message into memory as with all others.
3150 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3151 char *content_type, /* MIME type of this object */
3152 char *tempfilename, /* Where to fetch it from */
3153 struct ctdluser *is_mailbox, /* Mailbox room? */
3154 int is_binary, /* Is encoding necessary? */
3155 int is_unique, /* Del others of this type? */
3156 unsigned int flags /* Internal save flags */
3161 struct ctdlroom qrbuf;
3162 char roomname[ROOMNAMELEN];
3163 struct CtdlMessage *msg;
3165 char *raw_message = NULL;
3166 char *encoded_message = NULL;
3167 off_t raw_length = 0;
3169 if (is_mailbox != NULL)
3170 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3172 safestrncpy(roomname, req_room, sizeof(roomname));
3173 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3176 fp = fopen(tempfilename, "rb");
3178 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3179 tempfilename, strerror(errno));
3182 fseek(fp, 0L, SEEK_END);
3183 raw_length = ftell(fp);
3185 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3187 raw_message = malloc((size_t)raw_length + 2);
3188 fread(raw_message, (size_t)raw_length, 1, fp);
3192 encoded_message = malloc((size_t)
3193 (((raw_length * 134) / 100) + 4096 ) );
3196 encoded_message = malloc((size_t)(raw_length + 4096));
3199 sprintf(encoded_message, "Content-type: %s\n", content_type);
3202 sprintf(&encoded_message[strlen(encoded_message)],
3203 "Content-transfer-encoding: base64\n\n"
3207 sprintf(&encoded_message[strlen(encoded_message)],
3208 "Content-transfer-encoding: 7bit\n\n"
3214 &encoded_message[strlen(encoded_message)],
3220 raw_message[raw_length] = 0;
3222 &encoded_message[strlen(encoded_message)],
3230 lprintf(CTDL_DEBUG, "Allocating\n");
3231 msg = malloc(sizeof(struct CtdlMessage));
3232 memset(msg, 0, sizeof(struct CtdlMessage));
3233 msg->cm_magic = CTDLMESSAGE_MAGIC;
3234 msg->cm_anon_type = MES_NORMAL;
3235 msg->cm_format_type = 4;
3236 msg->cm_fields['A'] = strdup(CC->user.fullname);
3237 msg->cm_fields['O'] = strdup(req_room);
3238 msg->cm_fields['N'] = strdup(config.c_nodename);
3239 msg->cm_fields['H'] = strdup(config.c_humannode);
3240 msg->cm_flags = flags;
3242 msg->cm_fields['M'] = encoded_message;
3244 /* Create the requested room if we have to. */
3245 if (getroom(&qrbuf, roomname) != 0) {
3246 create_room(roomname,
3247 ( (is_mailbox != NULL) ? 5 : 3 ),
3248 "", 0, 1, 0, VIEW_BBS);
3250 /* If the caller specified this object as unique, delete all
3251 * other objects of this type that are currently in the room.
3254 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3255 CtdlDeleteMessages(roomname, 0L, content_type));
3257 /* Now write the data */
3258 CtdlSubmitMsg(msg, NULL, roomname);
3259 CtdlFreeMessage(msg);
3267 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3268 config_msgnum = msgnum;
3272 char *CtdlGetSysConfig(char *sysconfname) {
3273 char hold_rm[ROOMNAMELEN];
3276 struct CtdlMessage *msg;
3279 strcpy(hold_rm, CC->room.QRname);
3280 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3281 getroom(&CC->room, hold_rm);
3286 /* We want the last (and probably only) config in this room */
3287 begin_critical_section(S_CONFIG);
3288 config_msgnum = (-1L);
3289 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3290 CtdlGetSysConfigBackend, NULL);
3291 msgnum = config_msgnum;
3292 end_critical_section(S_CONFIG);
3298 msg = CtdlFetchMessage(msgnum, 1);
3300 conf = strdup(msg->cm_fields['M']);
3301 CtdlFreeMessage(msg);
3308 getroom(&CC->room, hold_rm);
3310 if (conf != NULL) do {
3311 extract_token(buf, conf, 0, '\n');
3312 strcpy(conf, &conf[strlen(buf)+1]);
3313 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3318 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3319 char temp[PATH_MAX];
3322 strcpy(temp, tmpnam(NULL));
3324 fp = fopen(temp, "w");
3325 if (fp == NULL) return;
3326 fprintf(fp, "%s", sysconfdata);
3329 /* this handy API function does all the work for us */
3330 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3336 * Determine whether a given Internet address belongs to the current user
3338 int CtdlIsMe(char *addr) {
3339 struct recptypes *recp;
3342 recp = validate_recipients(addr);
3343 if (recp == NULL) return(0);
3345 if (recp->num_local == 0) {
3350 for (i=0; i<recp->num_local; ++i) {
3351 extract(addr, recp->recp_local, i);
3352 if (!strcasecmp(addr, CC->user.fullname)) {
3364 * Citadel protocol command to do the same
3366 void cmd_isme(char *argbuf) {
3369 if (CtdlAccessCheck(ac_logged_in)) return;
3370 extract(addr, argbuf, 0);
3372 if (CtdlIsMe(addr)) {
3373 cprintf("%d %s\n", CIT_OK, addr);
3376 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);