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);
1105 retcode = CtdlOutputPreLoadedMsg(
1106 TheMessage, msg_num, mode,
1107 headers_only, do_proto, crlf);
1109 CtdlFreeMessage(TheMessage);
1116 * Get a message off disk. (returns om_* values found in msgbase.h)
1119 int CtdlOutputPreLoadedMsg(
1120 struct CtdlMessage *TheMessage,
1122 int mode, /* how would you like that message? */
1123 int headers_only, /* eschew the message body? */
1124 int do_proto, /* do Citadel protocol responses? */
1125 int crlf /* Use CRLF newlines instead of LF? */
1131 char display_name[SIZ];
1133 char *nl; /* newline string */
1135 int subject_found = 0;
1137 /* buffers needed for RFC822 translation */
1144 char datestamp[SIZ];
1147 lprintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %ld, %d, %d, %d, %d\n",
1148 ((TheMessage == NULL) ? "NULL" : "not null"),
1150 mode, headers_only, do_proto, crlf);
1152 snprintf(mid, sizeof mid, "%ld", msg_num);
1153 nl = (crlf ? "\r\n" : "\n");
1155 if (!is_valid_message(TheMessage)) {
1157 "ERROR: invalid preloaded message for output\n");
1158 return(om_no_such_msg);
1161 /* Are we downloading a MIME component? */
1162 if (mode == MT_DOWNLOAD) {
1163 if (TheMessage->cm_format_type != FMT_RFC822) {
1165 cprintf("%d This is not a MIME message.\n",
1166 ERROR + ILLEGAL_VALUE);
1167 } else if (CC->download_fp != NULL) {
1168 if (do_proto) cprintf(
1169 "%d You already have a download open.\n",
1170 ERROR + RESOURCE_BUSY);
1172 /* Parse the message text component */
1173 mptr = TheMessage->cm_fields['M'];
1174 mime_parser(mptr, NULL,
1175 *mime_download, NULL, NULL,
1177 /* If there's no file open by this time, the requested
1178 * section wasn't found, so print an error
1180 if (CC->download_fp == NULL) {
1181 if (do_proto) cprintf(
1182 "%d Section %s not found.\n",
1183 ERROR + FILE_NOT_FOUND,
1187 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1190 /* now for the user-mode message reading loops */
1191 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1193 /* Does the caller want to skip the headers? */
1194 if (headers_only == HEADERS_NONE) goto START_TEXT;
1196 /* Tell the client which format type we're using. */
1197 if ( (mode == MT_CITADEL) && (do_proto) ) {
1198 cprintf("type=%d\n", TheMessage->cm_format_type);
1201 /* nhdr=yes means that we're only displaying headers, no body */
1202 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1203 && (mode == MT_CITADEL)
1206 cprintf("nhdr=yes\n");
1209 /* begin header processing loop for Citadel message format */
1211 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1213 strcpy(display_name, "<unknown>");
1214 if (TheMessage->cm_fields['A']) {
1215 strcpy(buf, TheMessage->cm_fields['A']);
1216 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1217 strcpy(display_name, "****");
1219 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1220 strcpy(display_name, "anonymous");
1223 strcpy(display_name, buf);
1225 if ((is_room_aide())
1226 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1227 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1228 size_t tmp = strlen(display_name);
1229 snprintf(&display_name[tmp],
1230 sizeof display_name - tmp,
1235 /* Don't show Internet address for users on the
1236 * local Citadel network.
1239 if (TheMessage->cm_fields['N'] != NULL)
1240 if (strlen(TheMessage->cm_fields['N']) > 0)
1241 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1245 /* Now spew the header fields in the order we like them. */
1246 strcpy(allkeys, FORDER);
1247 for (i=0; i<strlen(allkeys); ++i) {
1248 k = (int) allkeys[i];
1250 if ( (TheMessage->cm_fields[k] != NULL)
1251 && (msgkeys[k] != NULL) ) {
1253 if (do_proto) cprintf("%s=%s\n",
1257 else if ((k == 'F') && (suppress_f)) {
1260 /* Masquerade display name if needed */
1262 if (do_proto) cprintf("%s=%s\n",
1264 TheMessage->cm_fields[k]
1273 /* begin header processing loop for RFC822 transfer format */
1278 strcpy(snode, NODENAME);
1279 strcpy(lnode, HUMANNODE);
1280 if (mode == MT_RFC822) {
1281 for (i = 0; i < 256; ++i) {
1282 if (TheMessage->cm_fields[i]) {
1283 mptr = TheMessage->cm_fields[i];
1286 safestrncpy(luser, mptr, sizeof luser);
1287 safestrncpy(suser, mptr, sizeof suser);
1289 else if (i == 'U') {
1290 cprintf("Subject: %s%s", mptr, nl);
1294 safestrncpy(mid, mptr, sizeof mid);
1296 safestrncpy(lnode, mptr, sizeof lnode);
1298 safestrncpy(fuser, mptr, sizeof fuser);
1300 cprintf("X-Citadel-Room: %s%s",
1303 safestrncpy(snode, mptr, sizeof snode);
1305 cprintf("To: %s%s", mptr, nl);
1306 else if (i == 'T') {
1307 datestring(datestamp, sizeof datestamp,
1308 atol(mptr), DATESTRING_RFC822);
1309 cprintf("Date: %s%s", datestamp, nl);
1313 if (subject_found == 0) {
1314 cprintf("Subject: (no subject)%s", nl);
1318 for (i=0; i<strlen(suser); ++i) {
1319 suser[i] = tolower(suser[i]);
1320 if (!isalnum(suser[i])) suser[i]='_';
1323 if (mode == MT_RFC822) {
1324 if (!strcasecmp(snode, NODENAME)) {
1325 safestrncpy(snode, FQDN, sizeof snode);
1328 /* Construct a fun message id */
1329 cprintf("Message-ID: <%s", mid);
1330 if (strchr(mid, '@')==NULL) {
1331 cprintf("@%s", snode);
1335 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1336 cprintf("From: x@x.org (----)%s", nl);
1338 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1339 cprintf("From: x@x.org (anonymous)%s", nl);
1341 else if (strlen(fuser) > 0) {
1342 cprintf("From: %s (%s)%s", fuser, luser, nl);
1345 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1348 cprintf("Organization: %s%s", lnode, nl);
1350 /* Blank line signifying RFC822 end-of-headers */
1351 if (TheMessage->cm_format_type != FMT_RFC822) {
1356 /* end header processing loop ... at this point, we're in the text */
1358 if (headers_only == HEADERS_FAST) goto DONE;
1359 mptr = TheMessage->cm_fields['M'];
1361 /* Tell the client about the MIME parts in this message */
1362 if (TheMessage->cm_format_type == FMT_RFC822) {
1363 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1364 mime_parser(mptr, NULL,
1370 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1371 /* FIXME ... we have to put some code in here to avoid
1372 * printing duplicate header information when both
1373 * Citadel and RFC822 headers exist. Preference should
1374 * probably be given to the RFC822 headers.
1376 int done_rfc822_hdrs = 0;
1377 while (ch=*(mptr++), ch!=0) {
1382 if (!done_rfc822_hdrs) {
1383 if (headers_only != HEADERS_NONE) {
1388 if (headers_only != HEADERS_ONLY) {
1392 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1393 done_rfc822_hdrs = 1;
1397 if (done_rfc822_hdrs) {
1398 if (headers_only != HEADERS_NONE) {
1403 if (headers_only != HEADERS_ONLY) {
1407 if ((*mptr == 13) || (*mptr == 10)) {
1408 done_rfc822_hdrs = 1;
1416 if (headers_only == HEADERS_ONLY) {
1420 /* signify start of msg text */
1421 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1422 if (do_proto) cprintf("text\n");
1425 /* If the format type on disk is 1 (fixed-format), then we want
1426 * everything to be output completely literally ... regardless of
1427 * what message transfer format is in use.
1429 if (TheMessage->cm_format_type == FMT_FIXED) {
1430 if (mode == MT_MIME) {
1431 cprintf("Content-type: text/plain\n\n");
1434 while (ch = *mptr++, ch > 0) {
1437 if ((ch == 10) || (strlen(buf) > 250)) {
1438 cprintf("%s%s", buf, nl);
1441 buf[strlen(buf) + 1] = 0;
1442 buf[strlen(buf)] = ch;
1445 if (strlen(buf) > 0)
1446 cprintf("%s%s", buf, nl);
1449 /* If the message on disk is format 0 (Citadel vari-format), we
1450 * output using the formatter at 80 columns. This is the final output
1451 * form if the transfer format is RFC822, but if the transfer format
1452 * is Citadel proprietary, it'll still work, because the indentation
1453 * for new paragraphs is correct and the client will reformat the
1454 * message to the reader's screen width.
1456 if (TheMessage->cm_format_type == FMT_CITADEL) {
1457 if (mode == MT_MIME) {
1458 cprintf("Content-type: text/x-citadel-variformat\n\n");
1460 memfmout(80, mptr, 0, nl);
1463 /* If the message on disk is format 4 (MIME), we've gotta hand it
1464 * off to the MIME parser. The client has already been told that
1465 * this message is format 1 (fixed format), so the callback function
1466 * we use will display those parts as-is.
1468 if (TheMessage->cm_format_type == FMT_RFC822) {
1469 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1470 memset(ma, 0, sizeof(struct ma_info));
1472 if (mode == MT_MIME) {
1473 strcpy(ma->chosen_part, "1");
1474 mime_parser(mptr, NULL,
1475 *choose_preferred, *fixed_output_pre,
1476 *fixed_output_post, NULL, 0);
1477 mime_parser(mptr, NULL,
1478 *output_preferred, NULL, NULL, NULL, 0);
1481 mime_parser(mptr, NULL,
1482 *fixed_output, *fixed_output_pre,
1483 *fixed_output_post, NULL, 0);
1487 DONE: /* now we're done */
1488 if (do_proto) cprintf("000\n");
1495 * display a message (mode 0 - Citadel proprietary)
1497 void cmd_msg0(char *cmdbuf)
1500 int headers_only = HEADERS_ALL;
1502 msgid = extract_long(cmdbuf, 0);
1503 headers_only = extract_int(cmdbuf, 1);
1505 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1511 * display a message (mode 2 - RFC822)
1513 void cmd_msg2(char *cmdbuf)
1516 int headers_only = HEADERS_ALL;
1518 msgid = extract_long(cmdbuf, 0);
1519 headers_only = extract_int(cmdbuf, 1);
1521 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1527 * display a message (mode 3 - IGnet raw format - internal programs only)
1529 void cmd_msg3(char *cmdbuf)
1532 struct CtdlMessage *msg;
1535 if (CC->internal_pgm == 0) {
1536 cprintf("%d This command is for internal programs only.\n",
1537 ERROR + HIGHER_ACCESS_REQUIRED);
1541 msgnum = extract_long(cmdbuf, 0);
1542 msg = CtdlFetchMessage(msgnum, 1);
1544 cprintf("%d Message %ld not found.\n",
1545 ERROR + MESSAGE_NOT_FOUND, msgnum);
1549 serialize_message(&smr, msg);
1550 CtdlFreeMessage(msg);
1553 cprintf("%d Unable to serialize message\n",
1554 ERROR + INTERNAL_ERROR);
1558 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1559 client_write((char *)smr.ser, (int)smr.len);
1566 * Display a message using MIME content types
1568 void cmd_msg4(char *cmdbuf)
1572 msgid = extract_long(cmdbuf, 0);
1573 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1579 * Client tells us its preferred message format(s)
1581 void cmd_msgp(char *cmdbuf)
1583 safestrncpy(CC->preferred_formats, cmdbuf,
1584 sizeof(CC->preferred_formats));
1585 cprintf("%d ok\n", CIT_OK);
1590 * Open a component of a MIME message as a download file
1592 void cmd_opna(char *cmdbuf)
1596 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1598 msgid = extract_long(cmdbuf, 0);
1599 extract(desired_section, cmdbuf, 1);
1601 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1606 * Save a message pointer into a specified room
1607 * (Returns 0 for success, nonzero for failure)
1608 * roomname may be NULL to use the current room
1610 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1612 char hold_rm[ROOMNAMELEN];
1613 struct cdbdata *cdbfr;
1616 long highest_msg = 0L;
1617 struct CtdlMessage *msg = NULL;
1619 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1620 roomname, msgid, flags);
1622 strcpy(hold_rm, CC->room.QRname);
1624 /* We may need to check to see if this message is real */
1625 if ( (flags & SM_VERIFY_GOODNESS)
1626 || (flags & SM_DO_REPL_CHECK)
1628 msg = CtdlFetchMessage(msgid, 1);
1629 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1632 /* Perform replication checks if necessary */
1633 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1635 if (getroom(&CC->room,
1636 ((roomname != NULL) ? roomname : CC->room.QRname) )
1638 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1639 if (msg != NULL) CtdlFreeMessage(msg);
1640 return(ERROR + ROOM_NOT_FOUND);
1643 if (ReplicationChecks(msg) != 0) {
1644 getroom(&CC->room, hold_rm);
1645 if (msg != NULL) CtdlFreeMessage(msg);
1647 "Did replication, and newer exists\n");
1652 /* Now the regular stuff */
1653 if (lgetroom(&CC->room,
1654 ((roomname != NULL) ? roomname : CC->room.QRname) )
1656 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1657 if (msg != NULL) CtdlFreeMessage(msg);
1658 return(ERROR + ROOM_NOT_FOUND);
1661 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1662 if (cdbfr == NULL) {
1666 msglist = malloc(cdbfr->len);
1667 if (msglist == NULL)
1668 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1669 num_msgs = cdbfr->len / sizeof(long);
1670 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1675 /* Make sure the message doesn't already exist in this room. It
1676 * is absolutely taboo to have more than one reference to the same
1677 * message in a room.
1679 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1680 if (msglist[i] == msgid) {
1681 lputroom(&CC->room); /* unlock the room */
1682 getroom(&CC->room, hold_rm);
1683 if (msg != NULL) CtdlFreeMessage(msg);
1685 return(ERROR + ALREADY_EXISTS);
1689 /* Now add the new message */
1691 msglist = realloc(msglist, (num_msgs * sizeof(long)));
1693 if (msglist == NULL) {
1694 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1696 msglist[num_msgs - 1] = msgid;
1698 /* Sort the message list, so all the msgid's are in order */
1699 num_msgs = sort_msglist(msglist, num_msgs);
1701 /* Determine the highest message number */
1702 highest_msg = msglist[num_msgs - 1];
1704 /* Write it back to disk. */
1705 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
1706 msglist, (int)(num_msgs * sizeof(long)));
1708 /* Free up the memory we used. */
1711 /* Update the highest-message pointer and unlock the room. */
1712 CC->room.QRhighest = highest_msg;
1713 lputroom(&CC->room);
1714 getroom(&CC->room, hold_rm);
1716 /* Bump the reference count for this message. */
1717 if ((flags & SM_DONT_BUMP_REF)==0) {
1718 AdjRefCount(msgid, +1);
1721 /* Return success. */
1722 if (msg != NULL) CtdlFreeMessage(msg);
1729 * Message base operation to save a new message to the message store
1730 * (returns new message number)
1732 * This is the back end for CtdlSubmitMsg() and should not be directly
1733 * called by server-side modules.
1736 long send_message(struct CtdlMessage *msg) {
1744 /* Get a new message number */
1745 newmsgid = get_new_message_number();
1746 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1748 /* Generate an ID if we don't have one already */
1749 if (msg->cm_fields['I']==NULL) {
1750 msg->cm_fields['I'] = strdup(msgidbuf);
1753 /* If the message is big, set its body aside for storage elsewhere */
1754 if (msg->cm_fields['M'] != NULL) {
1755 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1757 holdM = msg->cm_fields['M'];
1758 msg->cm_fields['M'] = NULL;
1762 /* Serialize our data structure for storage in the database */
1763 serialize_message(&smr, msg);
1766 msg->cm_fields['M'] = holdM;
1770 cprintf("%d Unable to serialize message\n",
1771 ERROR + INTERNAL_ERROR);
1775 /* Write our little bundle of joy into the message base */
1776 if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
1777 smr.ser, smr.len) < 0) {
1778 lprintf(CTDL_ERR, "Can't store message\n");
1782 cdb_store(CDB_BIGMSGS,
1792 /* Free the memory we used for the serialized message */
1795 /* Return the *local* message ID to the caller
1796 * (even if we're storing an incoming network message)
1804 * Serialize a struct CtdlMessage into the format used on disk and network.
1806 * This function loads up a "struct ser_ret" (defined in server.h) which
1807 * contains the length of the serialized message and a pointer to the
1808 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1810 void serialize_message(struct ser_ret *ret, /* return values */
1811 struct CtdlMessage *msg) /* unserialized msg */
1815 static char *forder = FORDER;
1817 if (is_valid_message(msg) == 0) return; /* self check */
1820 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1821 ret->len = ret->len +
1822 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1824 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1825 ret->ser = malloc(ret->len);
1826 if (ret->ser == NULL) {
1832 ret->ser[1] = msg->cm_anon_type;
1833 ret->ser[2] = msg->cm_format_type;
1836 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1837 ret->ser[wlen++] = (char)forder[i];
1838 strcpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1839 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1841 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1842 (long)ret->len, (long)wlen);
1850 * Back end for the ReplicationChecks() function
1852 void check_repl(long msgnum, void *userdata) {
1853 struct CtdlMessage *msg;
1854 time_t timestamp = (-1L);
1856 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1857 msg = CtdlFetchMessage(msgnum, 1);
1858 if (msg == NULL) return;
1859 if (msg->cm_fields['T'] != NULL) {
1860 timestamp = atol(msg->cm_fields['T']);
1862 CtdlFreeMessage(msg);
1864 if (timestamp > msg_repl->highest) {
1865 msg_repl->highest = timestamp; /* newer! */
1866 lprintf(CTDL_DEBUG, "newer!\n");
1869 lprintf(CTDL_DEBUG, "older!\n");
1871 /* Existing isn't newer? Then delete the old one(s). */
1872 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1877 * Check to see if any messages already exist which carry the same Extended ID
1881 * -> With older timestamps: delete them and return 0. Message will be saved.
1882 * -> With newer timestamps: return 1. Message save will be aborted.
1884 int ReplicationChecks(struct CtdlMessage *msg) {
1885 struct CtdlMessage *template;
1888 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1889 /* No extended id? Don't do anything. */
1890 if (msg->cm_fields['E'] == NULL) return 0;
1891 if (strlen(msg->cm_fields['E']) == 0) return 0;
1892 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1894 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1895 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1896 msg_repl->highest = atol(msg->cm_fields['T']);
1898 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1899 memset(template, 0, sizeof(struct CtdlMessage));
1900 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1902 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1904 /* If a newer message exists with the same Extended ID, abort
1907 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1911 CtdlFreeMessage(template);
1912 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1920 * Save a message to disk and submit it into the delivery system.
1922 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1923 struct recptypes *recps, /* recipients (if mail) */
1924 char *force /* force a particular room? */
1927 char hold_rm[ROOMNAMELEN];
1928 char actual_rm[ROOMNAMELEN];
1929 char force_room[ROOMNAMELEN];
1930 char content_type[SIZ]; /* We have to learn this */
1931 char recipient[SIZ];
1934 struct ctdluser userbuf;
1936 struct MetaData smi;
1937 FILE *network_fp = NULL;
1938 static int seqnum = 1;
1939 struct CtdlMessage *imsg = NULL;
1942 char *hold_R, *hold_D;
1944 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1945 if (is_valid_message(msg) == 0) return(-1); /* self check */
1947 /* If this message has no timestamp, we take the liberty of
1948 * giving it one, right now.
1950 if (msg->cm_fields['T'] == NULL) {
1951 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1952 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1953 msg->cm_fields['T'] = strdup(aaa);
1956 /* If this message has no path, we generate one.
1958 if (msg->cm_fields['P'] == NULL) {
1959 lprintf(CTDL_DEBUG, "Generating path\n");
1960 if (msg->cm_fields['A'] != NULL) {
1961 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1962 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1963 if (isspace(msg->cm_fields['P'][a])) {
1964 msg->cm_fields['P'][a] = ' ';
1969 msg->cm_fields['P'] = strdup("unknown");
1973 if (force == NULL) {
1974 strcpy(force_room, "");
1977 strcpy(force_room, force);
1980 /* Learn about what's inside, because it's what's inside that counts */
1981 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1982 if (msg->cm_fields['M'] == NULL) {
1983 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1987 switch (msg->cm_format_type) {
1989 strcpy(content_type, "text/x-citadel-variformat");
1992 strcpy(content_type, "text/plain");
1995 strcpy(content_type, "text/plain");
1996 /* advance past header fields */
1997 mptr = msg->cm_fields['M'];
2000 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2001 safestrncpy(content_type, mptr,
2002 sizeof(content_type));
2003 strcpy(content_type, &content_type[14]);
2004 for (a = 0; a < strlen(content_type); ++a)
2005 if ((content_type[a] == ';')
2006 || (content_type[a] == ' ')
2007 || (content_type[a] == 13)
2008 || (content_type[a] == 10))
2009 content_type[a] = 0;
2016 /* Goto the correct room */
2017 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2018 strcpy(hold_rm, CC->room.QRname);
2019 strcpy(actual_rm, CC->room.QRname);
2020 if (recps != NULL) {
2021 strcpy(actual_rm, SENTITEMS);
2024 /* If the user is a twit, move to the twit room for posting */
2025 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2026 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2028 if (CC->user.axlevel == 2) {
2029 strcpy(hold_rm, actual_rm);
2030 strcpy(actual_rm, config.c_twitroom);
2034 /* ...or if this message is destined for Aide> then go there. */
2035 if (strlen(force_room) > 0) {
2036 strcpy(actual_rm, force_room);
2039 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2040 if (strcasecmp(actual_rm, CC->room.QRname)) {
2041 getroom(&CC->room, actual_rm);
2045 * If this message has no O (room) field, generate one.
2047 if (msg->cm_fields['O'] == NULL) {
2048 msg->cm_fields['O'] = strdup(CC->room.QRname);
2051 /* Perform "before save" hooks (aborting if any return nonzero) */
2052 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2053 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2055 /* If this message has an Extended ID, perform replication checks */
2056 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2057 if (ReplicationChecks(msg) > 0) return(-1);
2059 /* Save it to disk */
2060 lprintf(CTDL_DEBUG, "Saving to disk\n");
2061 newmsgid = send_message(msg);
2062 if (newmsgid <= 0L) return(-1);
2064 /* Write a supplemental message info record. This doesn't have to
2065 * be a critical section because nobody else knows about this message
2068 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2069 memset(&smi, 0, sizeof(struct MetaData));
2070 smi.meta_msgnum = newmsgid;
2071 smi.meta_refcount = 0;
2072 safestrncpy(smi.meta_content_type, content_type, sizeof smi.meta_content_type);
2075 /* Now figure out where to store the pointers */
2076 lprintf(CTDL_DEBUG, "Storing pointers\n");
2078 /* If this is being done by the networker delivering a private
2079 * message, we want to BYPASS saving the sender's copy (because there
2080 * is no local sender; it would otherwise go to the Trashcan).
2082 if ((!CC->internal_pgm) || (recps == NULL)) {
2083 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2084 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2085 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2089 /* For internet mail, drop a copy in the outbound queue room */
2091 if (recps->num_internet > 0) {
2092 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2095 /* If other rooms are specified, drop them there too. */
2097 if (recps->num_room > 0)
2098 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2099 extract(recipient, recps->recp_room, i);
2100 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2101 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2104 /* Bump this user's messages posted counter. */
2105 lprintf(CTDL_DEBUG, "Updating user\n");
2106 lgetuser(&CC->user, CC->curr_user);
2107 CC->user.posted = CC->user.posted + 1;
2108 lputuser(&CC->user);
2110 /* If this is private, local mail, make a copy in the
2111 * recipient's mailbox and bump the reference count.
2114 if (recps->num_local > 0)
2115 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2116 extract(recipient, recps->recp_local, i);
2117 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2119 if (getuser(&userbuf, recipient) == 0) {
2120 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2121 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2122 BumpNewMailCounter(userbuf.usernum);
2125 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2126 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2130 /* Perform "after save" hooks */
2131 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2132 PerformMessageHooks(msg, EVT_AFTERSAVE);
2134 /* For IGnet mail, we have to save a new copy into the spooler for
2135 * each recipient, with the R and D fields set to the recipient and
2136 * destination-node. This has two ugly side effects: all other
2137 * recipients end up being unlisted in this recipient's copy of the
2138 * message, and it has to deliver multiple messages to the same
2139 * node. We'll revisit this again in a year or so when everyone has
2140 * a network spool receiver that can handle the new style messages.
2143 if (recps->num_ignet > 0)
2144 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2145 extract(recipient, recps->recp_ignet, i);
2147 hold_R = msg->cm_fields['R'];
2148 hold_D = msg->cm_fields['D'];
2149 msg->cm_fields['R'] = malloc(SIZ);
2150 msg->cm_fields['D'] = malloc(SIZ);
2151 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2152 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2154 serialize_message(&smr, msg);
2156 snprintf(aaa, sizeof aaa,
2157 "./network/spoolin/netmail.%04lx.%04x.%04x",
2158 (long) getpid(), CC->cs_pid, ++seqnum);
2159 network_fp = fopen(aaa, "wb+");
2160 if (network_fp != NULL) {
2161 fwrite(smr.ser, smr.len, 1, network_fp);
2167 free(msg->cm_fields['R']);
2168 free(msg->cm_fields['D']);
2169 msg->cm_fields['R'] = hold_R;
2170 msg->cm_fields['D'] = hold_D;
2173 /* Go back to the room we started from */
2174 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2175 if (strcasecmp(hold_rm, CC->room.QRname))
2176 getroom(&CC->room, hold_rm);
2178 /* For internet mail, generate delivery instructions.
2179 * Yes, this is recursive. Deal with it. Infinite recursion does
2180 * not happen because the delivery instructions message does not
2181 * contain a recipient.
2184 if (recps->num_internet > 0) {
2185 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2186 instr = malloc(SIZ * 2);
2187 snprintf(instr, SIZ * 2,
2188 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2190 SPOOLMIME, newmsgid, (long)time(NULL),
2191 msg->cm_fields['A'], msg->cm_fields['N']
2194 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2195 size_t tmp = strlen(instr);
2196 extract(recipient, recps->recp_internet, i);
2197 snprintf(&instr[tmp], SIZ * 2 - tmp,
2198 "remote|%s|0||\n", recipient);
2201 imsg = malloc(sizeof(struct CtdlMessage));
2202 memset(imsg, 0, sizeof(struct CtdlMessage));
2203 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2204 imsg->cm_anon_type = MES_NORMAL;
2205 imsg->cm_format_type = FMT_RFC822;
2206 imsg->cm_fields['A'] = strdup("Citadel");
2207 imsg->cm_fields['M'] = instr;
2208 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2209 CtdlFreeMessage(imsg);
2218 * Convenience function for generating small administrative messages.
2220 void quickie_message(char *from, char *to, char *room, char *text,
2221 int format_type, char *subject)
2223 struct CtdlMessage *msg;
2224 struct recptypes *recp = NULL;
2226 msg = malloc(sizeof(struct CtdlMessage));
2227 memset(msg, 0, sizeof(struct CtdlMessage));
2228 msg->cm_magic = CTDLMESSAGE_MAGIC;
2229 msg->cm_anon_type = MES_NORMAL;
2230 msg->cm_format_type = format_type;
2231 msg->cm_fields['A'] = strdup(from);
2232 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2233 msg->cm_fields['N'] = strdup(NODENAME);
2235 msg->cm_fields['R'] = strdup(to);
2236 recp = validate_recipients(to);
2238 if (subject != NULL) {
2239 msg->cm_fields['U'] = strdup(subject);
2241 msg->cm_fields['M'] = strdup(text);
2243 CtdlSubmitMsg(msg, recp, room);
2244 CtdlFreeMessage(msg);
2245 if (recp != NULL) free(recp);
2251 * Back end function used by CtdlMakeMessage() and similar functions
2253 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2254 size_t maxlen, /* maximum message length */
2255 char *exist, /* if non-null, append to it;
2256 exist is ALWAYS freed */
2257 int crlf /* CRLF newlines instead of LF */
2261 size_t message_len = 0;
2262 size_t buffer_len = 0;
2268 if (exist == NULL) {
2275 message_len = strlen(exist);
2276 buffer_len = message_len + 4096;
2277 m = realloc(exist, buffer_len);
2284 /* flush the input if we have nowhere to store it */
2289 /* read in the lines of message text one by one */
2291 if (client_gets(buf) < 1) finished = 1;
2292 if (!strcmp(buf, terminator)) finished = 1;
2294 strcat(buf, "\r\n");
2300 if ( (!flushing) && (!finished) ) {
2301 /* Measure the line */
2302 linelen = strlen(buf);
2304 /* augment the buffer if we have to */
2305 if ((message_len + linelen) >= buffer_len) {
2306 ptr = realloc(m, (buffer_len * 2) );
2307 if (ptr == NULL) { /* flush if can't allocate */
2310 buffer_len = (buffer_len * 2);
2312 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2316 /* Add the new line to the buffer. NOTE: this loop must avoid
2317 * using functions like strcat() and strlen() because they
2318 * traverse the entire buffer upon every call, and doing that
2319 * for a multi-megabyte message slows it down beyond usability.
2321 strcpy(&m[message_len], buf);
2322 message_len += linelen;
2325 /* if we've hit the max msg length, flush the rest */
2326 if (message_len >= maxlen) flushing = 1;
2328 } while (!finished);
2336 * Build a binary message to be saved on disk.
2337 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2338 * will become part of the message. This means you are no longer
2339 * responsible for managing that memory -- it will be freed along with
2340 * the rest of the fields when CtdlFreeMessage() is called.)
2343 struct CtdlMessage *CtdlMakeMessage(
2344 struct ctdluser *author, /* author's user structure */
2345 char *recipient, /* NULL if it's not mail */
2346 char *room, /* room where it's going */
2347 int type, /* see MES_ types in header file */
2348 int format_type, /* variformat, plain text, MIME... */
2349 char *fake_name, /* who we're masquerading as */
2350 char *subject, /* Subject (optional) */
2351 char *preformatted_text /* ...or NULL to read text from client */
2353 char dest_node[SIZ];
2355 struct CtdlMessage *msg;
2357 msg = malloc(sizeof(struct CtdlMessage));
2358 memset(msg, 0, sizeof(struct CtdlMessage));
2359 msg->cm_magic = CTDLMESSAGE_MAGIC;
2360 msg->cm_anon_type = type;
2361 msg->cm_format_type = format_type;
2363 /* Don't confuse the poor folks if it's not routed mail. */
2364 strcpy(dest_node, "");
2368 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2369 msg->cm_fields['P'] = strdup(buf);
2371 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2372 msg->cm_fields['T'] = strdup(buf);
2374 if (fake_name[0]) /* author */
2375 msg->cm_fields['A'] = strdup(fake_name);
2377 msg->cm_fields['A'] = strdup(author->fullname);
2379 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2380 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2383 msg->cm_fields['O'] = strdup(CC->room.QRname);
2386 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2387 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2389 if (recipient[0] != 0) {
2390 msg->cm_fields['R'] = strdup(recipient);
2392 if (dest_node[0] != 0) {
2393 msg->cm_fields['D'] = strdup(dest_node);
2396 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2397 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2400 if (subject != NULL) {
2402 if (strlen(subject) > 0) {
2403 msg->cm_fields['U'] = strdup(subject);
2407 if (preformatted_text != NULL) {
2408 msg->cm_fields['M'] = preformatted_text;
2411 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2412 config.c_maxmsglen, NULL, 0);
2420 * Check to see whether we have permission to post a message in the current
2421 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2422 * returns 0 on success.
2424 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2426 if (!(CC->logged_in)) {
2427 snprintf(errmsgbuf, n, "Not logged in.");
2428 return (ERROR + NOT_LOGGED_IN);
2431 if ((CC->user.axlevel < 2)
2432 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2433 snprintf(errmsgbuf, n, "Need to be validated to enter "
2434 "(except in %s> to sysop)", MAILROOM);
2435 return (ERROR + HIGHER_ACCESS_REQUIRED);
2438 if ((CC->user.axlevel < 4)
2439 && (CC->room.QRflags & QR_NETWORK)) {
2440 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2441 return (ERROR + HIGHER_ACCESS_REQUIRED);
2444 if ((CC->user.axlevel < 6)
2445 && (CC->room.QRflags & QR_READONLY)) {
2446 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2447 return (ERROR + HIGHER_ACCESS_REQUIRED);
2450 strcpy(errmsgbuf, "Ok");
2456 * Check to see if the specified user has Internet mail permission
2457 * (returns nonzero if permission is granted)
2459 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2461 /* Do not allow twits to send Internet mail */
2462 if (who->axlevel <= 2) return(0);
2464 /* Globally enabled? */
2465 if (config.c_restrict == 0) return(1);
2467 /* User flagged ok? */
2468 if (who->flags & US_INTERNET) return(2);
2470 /* Aide level access? */
2471 if (who->axlevel >= 6) return(3);
2473 /* No mail for you! */
2480 * Validate recipients, count delivery types and errors, and handle aliasing
2481 * FIXME check for dupes!!!!!
2483 struct recptypes *validate_recipients(char *recipients) {
2484 struct recptypes *ret;
2485 char this_recp[SIZ];
2486 char this_recp_cooked[SIZ];
2492 struct ctdluser tempUS;
2493 struct ctdlroom tempQR;
2496 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2497 if (ret == NULL) return(NULL);
2498 memset(ret, 0, sizeof(struct recptypes));
2501 ret->num_internet = 0;
2506 if (recipients == NULL) {
2509 else if (strlen(recipients) == 0) {
2513 /* Change all valid separator characters to commas */
2514 for (i=0; i<strlen(recipients); ++i) {
2515 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2516 recipients[i] = ',';
2521 num_recps = num_tokens(recipients, ',');
2524 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2525 extract_token(this_recp, recipients, i, ',');
2527 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2528 mailtype = alias(this_recp);
2529 mailtype = alias(this_recp);
2530 mailtype = alias(this_recp);
2531 for (j=0; j<=strlen(this_recp); ++j) {
2532 if (this_recp[j]=='_') {
2533 this_recp_cooked[j] = ' ';
2536 this_recp_cooked[j] = this_recp[j];
2542 if (!strcasecmp(this_recp, "sysop")) {
2544 strcpy(this_recp, config.c_aideroom);
2545 if (strlen(ret->recp_room) > 0) {
2546 strcat(ret->recp_room, "|");
2548 strcat(ret->recp_room, this_recp);
2550 else if (getuser(&tempUS, this_recp) == 0) {
2552 strcpy(this_recp, tempUS.fullname);
2553 if (strlen(ret->recp_local) > 0) {
2554 strcat(ret->recp_local, "|");
2556 strcat(ret->recp_local, this_recp);
2558 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2560 strcpy(this_recp, tempUS.fullname);
2561 if (strlen(ret->recp_local) > 0) {
2562 strcat(ret->recp_local, "|");
2564 strcat(ret->recp_local, this_recp);
2566 else if ( (!strncasecmp(this_recp, "room_", 5))
2567 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2569 if (strlen(ret->recp_room) > 0) {
2570 strcat(ret->recp_room, "|");
2572 strcat(ret->recp_room, &this_recp_cooked[5]);
2580 /* Yes, you're reading this correctly: if the target
2581 * domain points back to the local system or an attached
2582 * Citadel directory, the address is invalid. That's
2583 * because if the address were valid, we would have
2584 * already translated it to a local address by now.
2586 if (IsDirectory(this_recp)) {
2591 ++ret->num_internet;
2592 if (strlen(ret->recp_internet) > 0) {
2593 strcat(ret->recp_internet, "|");
2595 strcat(ret->recp_internet, this_recp);
2600 if (strlen(ret->recp_ignet) > 0) {
2601 strcat(ret->recp_ignet, "|");
2603 strcat(ret->recp_ignet, this_recp);
2611 if (strlen(ret->errormsg) == 0) {
2612 snprintf(append, sizeof append,
2613 "Invalid recipient: %s",
2617 snprintf(append, sizeof append,
2620 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2621 strcat(ret->errormsg, append);
2625 if (strlen(ret->display_recp) == 0) {
2626 strcpy(append, this_recp);
2629 snprintf(append, sizeof append, ", %s",
2632 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2633 strcat(ret->display_recp, append);
2638 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2639 ret->num_room + ret->num_error) == 0) {
2641 strcpy(ret->errormsg, "No recipients specified.");
2644 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2645 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2646 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2647 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2648 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2649 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2657 * message entry - mode 0 (normal)
2659 void cmd_ent0(char *entargs)
2663 char masquerade_as[SIZ];
2665 int format_type = 0;
2666 char newusername[SIZ];
2667 struct CtdlMessage *msg;
2671 struct recptypes *valid = NULL;
2676 post = extract_int(entargs, 0);
2677 extract(recp, entargs, 1);
2678 anon_flag = extract_int(entargs, 2);
2679 format_type = extract_int(entargs, 3);
2680 extract(subject, entargs, 4);
2682 /* first check to make sure the request is valid. */
2684 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2686 cprintf("%d %s\n", err, errmsg);
2690 /* Check some other permission type things. */
2693 if (CC->user.axlevel < 6) {
2694 cprintf("%d You don't have permission to masquerade.\n",
2695 ERROR + HIGHER_ACCESS_REQUIRED);
2698 extract(newusername, entargs, 5);
2699 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2700 safestrncpy(CC->fake_postname, newusername,
2701 sizeof(CC->fake_postname) );
2702 cprintf("%d ok\n", CIT_OK);
2705 CC->cs_flags |= CS_POSTING;
2707 /* In the Mail> room we have to behave a little differently --
2708 * make sure the user has specified at least one recipient. Then
2709 * validate the recipient(s).
2711 if ( (CC->room.QRflags & QR_MAILBOX)
2712 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2714 if (CC->user.axlevel < 2) {
2715 strcpy(recp, "sysop");
2718 valid = validate_recipients(recp);
2719 if (valid->num_error > 0) {
2721 ERROR + NO_SUCH_USER, valid->errormsg);
2725 if (valid->num_internet > 0) {
2726 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2727 cprintf("%d You do not have permission "
2728 "to send Internet mail.\n",
2729 ERROR + HIGHER_ACCESS_REQUIRED);
2735 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2736 && (CC->user.axlevel < 4) ) {
2737 cprintf("%d Higher access required for network mail.\n",
2738 ERROR + HIGHER_ACCESS_REQUIRED);
2743 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2744 && ((CC->user.flags & US_INTERNET) == 0)
2745 && (!CC->internal_pgm)) {
2746 cprintf("%d You don't have access to Internet mail.\n",
2747 ERROR + HIGHER_ACCESS_REQUIRED);
2754 /* Is this a room which has anonymous-only or anonymous-option? */
2755 anonymous = MES_NORMAL;
2756 if (CC->room.QRflags & QR_ANONONLY) {
2757 anonymous = MES_ANONONLY;
2759 if (CC->room.QRflags & QR_ANONOPT) {
2760 if (anon_flag == 1) { /* only if the user requested it */
2761 anonymous = MES_ANONOPT;
2765 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2769 /* If we're only checking the validity of the request, return
2770 * success without creating the message.
2773 cprintf("%d %s\n", CIT_OK,
2774 ((valid != NULL) ? valid->display_recp : "") );
2779 /* Handle author masquerading */
2780 if (CC->fake_postname[0]) {
2781 strcpy(masquerade_as, CC->fake_postname);
2783 else if (CC->fake_username[0]) {
2784 strcpy(masquerade_as, CC->fake_username);
2787 strcpy(masquerade_as, "");
2790 /* Read in the message from the client. */
2791 cprintf("%d send message\n", SEND_LISTING);
2792 msg = CtdlMakeMessage(&CC->user, recp,
2793 CC->room.QRname, anonymous, format_type,
2794 masquerade_as, subject, NULL);
2797 CtdlSubmitMsg(msg, valid, "");
2798 CtdlFreeMessage(msg);
2800 CC->fake_postname[0] = '\0';
2808 * API function to delete messages which match a set of criteria
2809 * (returns the actual number of messages deleted)
2811 int CtdlDeleteMessages(char *room_name, /* which room */
2812 long dmsgnum, /* or "0" for any */
2813 char *content_type /* or "" for any */
2817 struct ctdlroom qrbuf;
2818 struct cdbdata *cdbfr;
2819 long *msglist = NULL;
2820 long *dellist = NULL;
2823 int num_deleted = 0;
2825 struct MetaData smi;
2827 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2828 room_name, dmsgnum, content_type);
2830 /* get room record, obtaining a lock... */
2831 if (lgetroom(&qrbuf, room_name) != 0) {
2832 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2834 return (0); /* room not found */
2836 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2838 if (cdbfr != NULL) {
2839 msglist = malloc(cdbfr->len);
2840 dellist = malloc(cdbfr->len);
2841 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2842 num_msgs = cdbfr->len / sizeof(long);
2846 for (i = 0; i < num_msgs; ++i) {
2849 /* Set/clear a bit for each criterion */
2851 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2852 delete_this |= 0x01;
2854 if (strlen(content_type) == 0) {
2855 delete_this |= 0x02;
2857 GetMetaData(&smi, msglist[i]);
2858 if (!strcasecmp(smi.meta_content_type,
2860 delete_this |= 0x02;
2864 /* Delete message only if all bits are set */
2865 if (delete_this == 0x03) {
2866 dellist[num_deleted++] = msglist[i];
2871 num_msgs = sort_msglist(msglist, num_msgs);
2872 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
2873 msglist, (int)(num_msgs * sizeof(long)));
2875 qrbuf.QRhighest = msglist[num_msgs - 1];
2879 /* Go through the messages we pulled out of the index, and decrement
2880 * their reference counts by 1. If this is the only room the message
2881 * was in, the reference count will reach zero and the message will
2882 * automatically be deleted from the database. We do this in a
2883 * separate pass because there might be plug-in hooks getting called,
2884 * and we don't want that happening during an S_ROOMS critical
2887 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2888 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2889 AdjRefCount(dellist[i], -1);
2892 /* Now free the memory we used, and go away. */
2893 if (msglist != NULL) free(msglist);
2894 if (dellist != NULL) free(dellist);
2895 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2896 return (num_deleted);
2902 * Check whether the current user has permission to delete messages from
2903 * the current room (returns 1 for yes, 0 for no)
2905 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2906 getuser(&CC->user, CC->curr_user);
2907 if ((CC->user.axlevel < 6)
2908 && (CC->user.usernum != CC->room.QRroomaide)
2909 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2910 && (!(CC->internal_pgm))) {
2919 * Delete message from current room
2921 void cmd_dele(char *delstr)
2926 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2927 cprintf("%d Higher access required.\n",
2928 ERROR + HIGHER_ACCESS_REQUIRED);
2931 delnum = extract_long(delstr, 0);
2933 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2936 cprintf("%d %d message%s deleted.\n", CIT_OK,
2937 num_deleted, ((num_deleted != 1) ? "s" : ""));
2939 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2945 * Back end API function for moves and deletes
2947 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2950 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2951 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2952 if (err != 0) return(err);
2960 * move or copy a message to another room
2962 void cmd_move(char *args)
2966 struct ctdlroom qtemp;
2972 num = extract_long(args, 0);
2973 extract(targ, args, 1);
2974 targ[ROOMNAMELEN - 1] = 0;
2975 is_copy = extract_int(args, 2);
2977 if (getroom(&qtemp, targ) != 0) {
2978 cprintf("%d '%s' does not exist.\n",
2979 ERROR + ROOM_NOT_FOUND, targ);
2983 getuser(&CC->user, CC->curr_user);
2984 ra = CtdlRoomAccess(&qtemp, &CC->user);
2986 /* Check for permission to perform this operation.
2987 * Remember: "CC->room" is source, "qtemp" is target.
2991 /* Aides can move/copy */
2992 if (CC->user.axlevel >= 6) permit = 1;
2994 /* Room aides can move/copy */
2995 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
2997 /* Permit move/copy from personal rooms */
2998 if ((CC->room.QRflags & QR_MAILBOX)
2999 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3001 /* Permit only copy from public to personal room */
3003 && (!(CC->room.QRflags & QR_MAILBOX))
3004 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3006 /* User must have access to target room */
3007 if (!(ra & UA_KNOWN)) permit = 0;
3010 cprintf("%d Higher access required.\n",
3011 ERROR + HIGHER_ACCESS_REQUIRED);
3015 err = CtdlCopyMsgToRoom(num, targ);
3017 cprintf("%d Cannot store message in %s: error %d\n",
3022 /* Now delete the message from the source room,
3023 * if this is a 'move' rather than a 'copy' operation.
3026 CtdlDeleteMessages(CC->room.QRname, num, "");
3029 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3035 * GetMetaData() - Get the supplementary record for a message
3037 void GetMetaData(struct MetaData *smibuf, long msgnum)
3040 struct cdbdata *cdbsmi;
3043 memset(smibuf, 0, sizeof(struct MetaData));
3044 smibuf->meta_msgnum = msgnum;
3045 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3047 /* Use the negative of the message number for its supp record index */
3048 TheIndex = (0L - msgnum);
3050 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3051 if (cdbsmi == NULL) {
3052 return; /* record not found; go with defaults */
3054 memcpy(smibuf, cdbsmi->ptr,
3055 ((cdbsmi->len > sizeof(struct MetaData)) ?
3056 sizeof(struct MetaData) : cdbsmi->len));
3063 * PutMetaData() - (re)write supplementary record for a message
3065 void PutMetaData(struct MetaData *smibuf)
3069 /* Use the negative of the message number for the metadata db index */
3070 TheIndex = (0L - smibuf->meta_msgnum);
3072 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3073 smibuf->meta_msgnum, smibuf->meta_refcount);
3075 cdb_store(CDB_MSGMAIN,
3076 &TheIndex, (int)sizeof(long),
3077 smibuf, (int)sizeof(struct MetaData));
3082 * AdjRefCount - change the reference count for a message;
3083 * delete the message if it reaches zero
3085 void AdjRefCount(long msgnum, int incr)
3088 struct MetaData smi;
3091 /* This is a *tight* critical section; please keep it that way, as
3092 * it may get called while nested in other critical sections.
3093 * Complicating this any further will surely cause deadlock!
3095 begin_critical_section(S_SUPPMSGMAIN);
3096 GetMetaData(&smi, msgnum);
3097 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3098 msgnum, smi.meta_refcount);
3099 smi.meta_refcount += incr;
3101 end_critical_section(S_SUPPMSGMAIN);
3102 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3103 msgnum, smi.meta_refcount);
3105 /* If the reference count is now zero, delete the message
3106 * (and its supplementary record as well).
3108 if (smi.meta_refcount == 0) {
3109 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3111 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3112 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
3114 /* We have to delete the metadata record too! */
3115 delnum = (0L - msgnum);
3116 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3121 * Write a generic object to this room
3123 * Note: this could be much more efficient. Right now we use two temporary
3124 * files, and still pull the message into memory as with all others.
3126 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3127 char *content_type, /* MIME type of this object */
3128 char *tempfilename, /* Where to fetch it from */
3129 struct ctdluser *is_mailbox, /* Mailbox room? */
3130 int is_binary, /* Is encoding necessary? */
3131 int is_unique, /* Del others of this type? */
3132 unsigned int flags /* Internal save flags */
3137 struct ctdlroom qrbuf;
3138 char roomname[ROOMNAMELEN];
3139 struct CtdlMessage *msg;
3141 char *raw_message = NULL;
3142 char *encoded_message = NULL;
3143 off_t raw_length = 0;
3145 if (is_mailbox != NULL)
3146 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3148 safestrncpy(roomname, req_room, sizeof(roomname));
3149 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3152 fp = fopen(tempfilename, "rb");
3154 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3155 tempfilename, strerror(errno));
3158 fseek(fp, 0L, SEEK_END);
3159 raw_length = ftell(fp);
3161 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3163 raw_message = malloc((size_t)raw_length + 2);
3164 fread(raw_message, (size_t)raw_length, 1, fp);
3168 encoded_message = malloc((size_t)
3169 (((raw_length * 134) / 100) + 4096 ) );
3172 encoded_message = malloc((size_t)(raw_length + 4096));
3175 sprintf(encoded_message, "Content-type: %s\n", content_type);
3178 sprintf(&encoded_message[strlen(encoded_message)],
3179 "Content-transfer-encoding: base64\n\n"
3183 sprintf(&encoded_message[strlen(encoded_message)],
3184 "Content-transfer-encoding: 7bit\n\n"
3190 &encoded_message[strlen(encoded_message)],
3196 raw_message[raw_length] = 0;
3198 &encoded_message[strlen(encoded_message)],
3206 lprintf(CTDL_DEBUG, "Allocating\n");
3207 msg = malloc(sizeof(struct CtdlMessage));
3208 memset(msg, 0, sizeof(struct CtdlMessage));
3209 msg->cm_magic = CTDLMESSAGE_MAGIC;
3210 msg->cm_anon_type = MES_NORMAL;
3211 msg->cm_format_type = 4;
3212 msg->cm_fields['A'] = strdup(CC->user.fullname);
3213 msg->cm_fields['O'] = strdup(req_room);
3214 msg->cm_fields['N'] = strdup(config.c_nodename);
3215 msg->cm_fields['H'] = strdup(config.c_humannode);
3216 msg->cm_flags = flags;
3218 msg->cm_fields['M'] = encoded_message;
3220 /* Create the requested room if we have to. */
3221 if (getroom(&qrbuf, roomname) != 0) {
3222 create_room(roomname,
3223 ( (is_mailbox != NULL) ? 5 : 3 ),
3224 "", 0, 1, 0, VIEW_BBS);
3226 /* If the caller specified this object as unique, delete all
3227 * other objects of this type that are currently in the room.
3230 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3231 CtdlDeleteMessages(roomname, 0L, content_type));
3233 /* Now write the data */
3234 CtdlSubmitMsg(msg, NULL, roomname);
3235 CtdlFreeMessage(msg);
3243 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3244 config_msgnum = msgnum;
3248 char *CtdlGetSysConfig(char *sysconfname) {
3249 char hold_rm[ROOMNAMELEN];
3252 struct CtdlMessage *msg;
3255 strcpy(hold_rm, CC->room.QRname);
3256 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3257 getroom(&CC->room, hold_rm);
3262 /* We want the last (and probably only) config in this room */
3263 begin_critical_section(S_CONFIG);
3264 config_msgnum = (-1L);
3265 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3266 CtdlGetSysConfigBackend, NULL);
3267 msgnum = config_msgnum;
3268 end_critical_section(S_CONFIG);
3274 msg = CtdlFetchMessage(msgnum, 1);
3276 conf = strdup(msg->cm_fields['M']);
3277 CtdlFreeMessage(msg);
3284 getroom(&CC->room, hold_rm);
3286 if (conf != NULL) do {
3287 extract_token(buf, conf, 0, '\n');
3288 strcpy(conf, &conf[strlen(buf)+1]);
3289 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3294 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3295 char temp[PATH_MAX];
3298 strcpy(temp, tmpnam(NULL));
3300 fp = fopen(temp, "w");
3301 if (fp == NULL) return;
3302 fprintf(fp, "%s", sysconfdata);
3305 /* this handy API function does all the work for us */
3306 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3312 * Determine whether a given Internet address belongs to the current user
3314 int CtdlIsMe(char *addr) {
3315 struct recptypes *recp;
3318 recp = validate_recipients(addr);
3319 if (recp == NULL) return(0);
3321 if (recp->num_local == 0) {
3326 for (i=0; i<recp->num_local; ++i) {
3327 extract(addr, recp->recp_local, i);
3328 if (!strcasecmp(addr, CC->user.fullname)) {
3340 * Citadel protocol command to do the same
3342 void cmd_isme(char *argbuf) {
3345 if (CtdlAccessCheck(ac_logged_in)) return;
3346 extract(addr, argbuf, 0);
3348 if (CtdlIsMe(addr)) {
3349 cprintf("%d %s\n", CIT_OK, addr);
3352 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);