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 cdbdata *dbigmsg;
793 struct CtdlMessage *ret = NULL;
796 cit_uint8_t field_header;
799 lprintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
801 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
802 if (dmsgtext == NULL) {
805 mptr = dmsgtext->ptr;
807 /* Parse the three bytes that begin EVERY message on disk.
808 * The first is always 0xFF, the on-disk magic number.
809 * The second is the anonymous/public type byte.
810 * The third is the format type byte (vari, fixed, or MIME).
814 lprintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
818 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
819 memset(ret, 0, sizeof(struct CtdlMessage));
821 ret->cm_magic = CTDLMESSAGE_MAGIC;
822 ret->cm_anon_type = *mptr++; /* Anon type byte */
823 ret->cm_format_type = *mptr++; /* Format type byte */
826 * The rest is zero or more arbitrary fields. Load them in.
827 * We're done when we encounter either a zero-length field or
828 * have just processed the 'M' (message text) field.
831 field_length = strlen(mptr);
832 if (field_length == 0)
834 field_header = *mptr++;
835 ret->cm_fields[field_header] = malloc(field_length);
836 strcpy(ret->cm_fields[field_header], mptr);
838 while (*mptr++ != 0); /* advance to next field */
840 } while ((field_length > 0) && (field_header != 'M'));
844 /* Always make sure there's something in the msg text field. If
845 * it's NULL, the message text is most likely stored separately,
846 * so go ahead and fetch that. Failing that, just set a dummy
847 * body so other code doesn't barf.
849 if (ret->cm_fields['M'] == NULL) {
851 dbigmsg = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
852 if (dmsgtext == NULL) {
853 ret->cm_fields['M'] = strdup("<no text>\n");
856 ret->cm_fields['M'] = strdup(dbigmsg->ptr);
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;
1076 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1081 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1082 if (do_proto) cprintf("%d Not logged in.\n",
1083 ERROR + NOT_LOGGED_IN);
1084 return(om_not_logged_in);
1087 /* FIXME: check message id against msglist for this room */
1090 * Fetch the message from disk. If we're in sooper-fast headers
1091 * only mode, request that we don't even bother loading the body
1094 if (headers_only == HEADERS_FAST) {
1095 TheMessage = CtdlFetchMessage(msg_num, 0);
1098 TheMessage = CtdlFetchMessage(msg_num, 1);
1101 if (TheMessage == NULL) {
1102 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1103 ERROR + MESSAGE_NOT_FOUND, msg_num);
1104 return(om_no_such_msg);
1107 retcode = CtdlOutputPreLoadedMsg(
1108 TheMessage, msg_num, mode,
1109 headers_only, do_proto, crlf);
1111 CtdlFreeMessage(TheMessage);
1118 * Get a message off disk. (returns om_* values found in msgbase.h)
1121 int CtdlOutputPreLoadedMsg(struct CtdlMessage *TheMessage,
1123 int mode, /* how would you like that message? */
1124 int headers_only, /* eschew the message body? */
1125 int do_proto, /* do Citadel protocol responses? */
1126 int crlf /* Use CRLF newlines instead of LF? */
1132 char display_name[SIZ];
1134 char *nl; /* newline string */
1136 int subject_found = 0;
1138 /* buffers needed for RFC822 translation */
1145 char datestamp[SIZ];
1148 snprintf(mid, sizeof mid, "%ld", msg_num);
1149 nl = (crlf ? "\r\n" : "\n");
1151 if (!is_valid_message(TheMessage)) {
1152 lprintf(CTDL_ERR, "ERROR: invalid preloaded message for output\n");
1153 return(om_no_such_msg);
1156 /* Are we downloading a MIME component? */
1157 if (mode == MT_DOWNLOAD) {
1158 if (TheMessage->cm_format_type != FMT_RFC822) {
1160 cprintf("%d This is not a MIME message.\n",
1161 ERROR + ILLEGAL_VALUE);
1162 } else if (CC->download_fp != NULL) {
1163 if (do_proto) cprintf(
1164 "%d You already have a download open.\n",
1165 ERROR + RESOURCE_BUSY);
1167 /* Parse the message text component */
1168 mptr = TheMessage->cm_fields['M'];
1169 mime_parser(mptr, NULL,
1170 *mime_download, NULL, NULL,
1172 /* If there's no file open by this time, the requested
1173 * section wasn't found, so print an error
1175 if (CC->download_fp == NULL) {
1176 if (do_proto) cprintf(
1177 "%d Section %s not found.\n",
1178 ERROR + FILE_NOT_FOUND,
1182 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1185 /* now for the user-mode message reading loops */
1186 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1188 /* Does the caller want to skip the headers? */
1189 if (headers_only == HEADERS_NONE) goto START_TEXT;
1191 /* Tell the client which format type we're using. */
1192 if ( (mode == MT_CITADEL) && (do_proto) ) {
1193 cprintf("type=%d\n", TheMessage->cm_format_type);
1196 /* nhdr=yes means that we're only displaying headers, no body */
1197 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1198 && (mode == MT_CITADEL)
1201 cprintf("nhdr=yes\n");
1204 /* begin header processing loop for Citadel message format */
1206 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1208 strcpy(display_name, "<unknown>");
1209 if (TheMessage->cm_fields['A']) {
1210 strcpy(buf, TheMessage->cm_fields['A']);
1211 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1212 strcpy(display_name, "****");
1214 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1215 strcpy(display_name, "anonymous");
1218 strcpy(display_name, buf);
1220 if ((is_room_aide())
1221 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1222 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1223 size_t tmp = strlen(display_name);
1224 snprintf(&display_name[tmp],
1225 sizeof display_name - tmp,
1230 /* Don't show Internet address for users on the
1231 * local Citadel network.
1234 if (TheMessage->cm_fields['N'] != NULL)
1235 if (strlen(TheMessage->cm_fields['N']) > 0)
1236 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1240 /* Now spew the header fields in the order we like them. */
1241 strcpy(allkeys, FORDER);
1242 for (i=0; i<strlen(allkeys); ++i) {
1243 k = (int) allkeys[i];
1245 if ( (TheMessage->cm_fields[k] != NULL)
1246 && (msgkeys[k] != NULL) ) {
1248 if (do_proto) cprintf("%s=%s\n",
1252 else if ((k == 'F') && (suppress_f)) {
1255 /* Masquerade display name if needed */
1257 if (do_proto) cprintf("%s=%s\n",
1259 TheMessage->cm_fields[k]
1268 /* begin header processing loop for RFC822 transfer format */
1273 strcpy(snode, NODENAME);
1274 strcpy(lnode, HUMANNODE);
1275 if (mode == MT_RFC822) {
1276 cprintf("X-UIDL: %ld%s", msg_num, nl);
1277 for (i = 0; i < 256; ++i) {
1278 if (TheMessage->cm_fields[i]) {
1279 mptr = TheMessage->cm_fields[i];
1282 strcpy(luser, mptr);
1283 strcpy(suser, mptr);
1286 "Path:" removed for now because it confuses brain-dead Microsoft shitware
1287 into thinking that mail messages are newsgroup messages instead. When we
1288 add NNTP support back into Citadel we'll have to add code to only output
1289 this field when appropriate.
1290 else if (i == 'P') {
1291 cprintf("Path: %s%s", mptr, nl);
1294 else if (i == 'U') {
1295 cprintf("Subject: %s%s", mptr, nl);
1299 safestrncpy(mid, mptr, sizeof mid);
1301 safestrncpy(lnode, mptr, sizeof lnode);
1303 safestrncpy(fuser, mptr, sizeof fuser);
1305 cprintf("X-Citadel-Room: %s%s",
1308 safestrncpy(snode, mptr, sizeof snode);
1310 cprintf("To: %s%s", mptr, nl);
1311 else if (i == 'T') {
1312 datestring(datestamp, sizeof datestamp,
1313 atol(mptr), DATESTRING_RFC822);
1314 cprintf("Date: %s%s", datestamp, nl);
1318 if (subject_found == 0) {
1319 cprintf("Subject: (no subject)%s", nl);
1323 for (i=0; i<strlen(suser); ++i) {
1324 suser[i] = tolower(suser[i]);
1325 if (!isalnum(suser[i])) suser[i]='_';
1328 if (mode == MT_RFC822) {
1329 if (!strcasecmp(snode, NODENAME)) {
1330 strcpy(snode, FQDN);
1333 /* Construct a fun message id */
1334 cprintf("Message-ID: <%s", mid);
1335 if (strchr(mid, '@')==NULL) {
1336 cprintf("@%s", snode);
1340 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1341 cprintf("From: x@x.org (----)%s", nl);
1343 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1344 cprintf("From: x@x.org (anonymous)%s", nl);
1346 else if (strlen(fuser) > 0) {
1347 cprintf("From: %s (%s)%s", fuser, luser, nl);
1350 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1353 cprintf("Organization: %s%s", lnode, nl);
1355 /* Blank line signifying RFC822 end-of-headers */
1356 if (TheMessage->cm_format_type != FMT_RFC822) {
1361 /* end header processing loop ... at this point, we're in the text */
1363 if (headers_only == HEADERS_FAST) goto DONE;
1364 mptr = TheMessage->cm_fields['M'];
1366 /* Tell the client about the MIME parts in this message */
1367 if (TheMessage->cm_format_type == FMT_RFC822) {
1368 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1369 mime_parser(mptr, NULL,
1375 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1376 /* FIXME ... we have to put some code in here to avoid
1377 * printing duplicate header information when both
1378 * Citadel and RFC822 headers exist. Preference should
1379 * probably be given to the RFC822 headers.
1381 int done_rfc822_hdrs = 0;
1382 while (ch=*(mptr++), ch!=0) {
1387 if (!done_rfc822_hdrs) {
1388 if (headers_only != HEADERS_NONE) {
1393 if (headers_only != HEADERS_ONLY) {
1397 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1398 done_rfc822_hdrs = 1;
1402 if (done_rfc822_hdrs) {
1403 if (headers_only != HEADERS_NONE) {
1408 if (headers_only != HEADERS_ONLY) {
1412 if ((*mptr == 13) || (*mptr == 10)) {
1413 done_rfc822_hdrs = 1;
1421 if (headers_only == HEADERS_ONLY) {
1425 /* signify start of msg text */
1426 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1427 if (do_proto) cprintf("text\n");
1430 /* If the format type on disk is 1 (fixed-format), then we want
1431 * everything to be output completely literally ... regardless of
1432 * what message transfer format is in use.
1434 if (TheMessage->cm_format_type == FMT_FIXED) {
1435 if (mode == MT_MIME) {
1436 cprintf("Content-type: text/plain\n\n");
1439 while (ch = *mptr++, ch > 0) {
1442 if ((ch == 10) || (strlen(buf) > 250)) {
1443 cprintf("%s%s", buf, nl);
1446 buf[strlen(buf) + 1] = 0;
1447 buf[strlen(buf)] = ch;
1450 if (strlen(buf) > 0)
1451 cprintf("%s%s", buf, nl);
1454 /* If the message on disk is format 0 (Citadel vari-format), we
1455 * output using the formatter at 80 columns. This is the final output
1456 * form if the transfer format is RFC822, but if the transfer format
1457 * is Citadel proprietary, it'll still work, because the indentation
1458 * for new paragraphs is correct and the client will reformat the
1459 * message to the reader's screen width.
1461 if (TheMessage->cm_format_type == FMT_CITADEL) {
1462 if (mode == MT_MIME) {
1463 cprintf("Content-type: text/x-citadel-variformat\n\n");
1465 memfmout(80, mptr, 0, nl);
1468 /* If the message on disk is format 4 (MIME), we've gotta hand it
1469 * off to the MIME parser. The client has already been told that
1470 * this message is format 1 (fixed format), so the callback function
1471 * we use will display those parts as-is.
1473 if (TheMessage->cm_format_type == FMT_RFC822) {
1474 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1475 memset(ma, 0, sizeof(struct ma_info));
1477 if (mode == MT_MIME) {
1478 strcpy(ma->chosen_part, "1");
1479 mime_parser(mptr, NULL,
1480 *choose_preferred, *fixed_output_pre,
1481 *fixed_output_post, NULL, 0);
1482 mime_parser(mptr, NULL,
1483 *output_preferred, NULL, NULL, NULL, 0);
1486 mime_parser(mptr, NULL,
1487 *fixed_output, *fixed_output_pre,
1488 *fixed_output_post, NULL, 0);
1492 DONE: /* now we're done */
1493 if (do_proto) cprintf("000\n");
1500 * display a message (mode 0 - Citadel proprietary)
1502 void cmd_msg0(char *cmdbuf)
1505 int headers_only = HEADERS_ALL;
1507 msgid = extract_long(cmdbuf, 0);
1508 headers_only = extract_int(cmdbuf, 1);
1510 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1516 * display a message (mode 2 - RFC822)
1518 void cmd_msg2(char *cmdbuf)
1521 int headers_only = HEADERS_ALL;
1523 msgid = extract_long(cmdbuf, 0);
1524 headers_only = extract_int(cmdbuf, 1);
1526 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1532 * display a message (mode 3 - IGnet raw format - internal programs only)
1534 void cmd_msg3(char *cmdbuf)
1537 struct CtdlMessage *msg;
1540 if (CC->internal_pgm == 0) {
1541 cprintf("%d This command is for internal programs only.\n",
1542 ERROR + HIGHER_ACCESS_REQUIRED);
1546 msgnum = extract_long(cmdbuf, 0);
1547 msg = CtdlFetchMessage(msgnum, 1);
1549 cprintf("%d Message %ld not found.\n",
1550 ERROR + MESSAGE_NOT_FOUND, msgnum);
1554 serialize_message(&smr, msg);
1555 CtdlFreeMessage(msg);
1558 cprintf("%d Unable to serialize message\n",
1559 ERROR + INTERNAL_ERROR);
1563 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1564 client_write(smr.ser, smr.len);
1571 * Display a message using MIME content types
1573 void cmd_msg4(char *cmdbuf)
1577 msgid = extract_long(cmdbuf, 0);
1578 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1584 * Client tells us its preferred message format(s)
1586 void cmd_msgp(char *cmdbuf)
1588 safestrncpy(CC->preferred_formats, cmdbuf,
1589 sizeof(CC->preferred_formats));
1590 cprintf("%d ok\n", CIT_OK);
1595 * Open a component of a MIME message as a download file
1597 void cmd_opna(char *cmdbuf)
1601 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1603 msgid = extract_long(cmdbuf, 0);
1604 extract(desired_section, cmdbuf, 1);
1606 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1611 * Save a message pointer into a specified room
1612 * (Returns 0 for success, nonzero for failure)
1613 * roomname may be NULL to use the current room
1615 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1617 char hold_rm[ROOMNAMELEN];
1618 struct cdbdata *cdbfr;
1621 long highest_msg = 0L;
1622 struct CtdlMessage *msg = NULL;
1624 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1625 roomname, msgid, flags);
1627 strcpy(hold_rm, CC->room.QRname);
1629 /* We may need to check to see if this message is real */
1630 if ( (flags & SM_VERIFY_GOODNESS)
1631 || (flags & SM_DO_REPL_CHECK)
1633 msg = CtdlFetchMessage(msgid, 1);
1634 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1637 /* Perform replication checks if necessary */
1638 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1640 if (getroom(&CC->room,
1641 ((roomname != NULL) ? roomname : CC->room.QRname) )
1643 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1644 if (msg != NULL) CtdlFreeMessage(msg);
1645 return(ERROR + ROOM_NOT_FOUND);
1648 if (ReplicationChecks(msg) != 0) {
1649 getroom(&CC->room, hold_rm);
1650 if (msg != NULL) CtdlFreeMessage(msg);
1651 lprintf(CTDL_DEBUG, "Did replication, and newer exists\n");
1656 /* Now the regular stuff */
1657 if (lgetroom(&CC->room,
1658 ((roomname != NULL) ? roomname : CC->room.QRname) )
1660 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1661 if (msg != NULL) CtdlFreeMessage(msg);
1662 return(ERROR + ROOM_NOT_FOUND);
1665 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1666 if (cdbfr == NULL) {
1670 msglist = malloc(cdbfr->len);
1671 if (msglist == NULL)
1672 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1673 num_msgs = cdbfr->len / sizeof(long);
1674 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1679 /* Make sure the message doesn't already exist in this room. It
1680 * is absolutely taboo to have more than one reference to the same
1681 * message in a room.
1683 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1684 if (msglist[i] == msgid) {
1685 lputroom(&CC->room); /* unlock the room */
1686 getroom(&CC->room, hold_rm);
1687 if (msg != NULL) CtdlFreeMessage(msg);
1689 return(ERROR + ALREADY_EXISTS);
1693 /* Now add the new message */
1695 msglist = realloc(msglist,
1696 (num_msgs * sizeof(long)));
1698 if (msglist == NULL) {
1699 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1701 msglist[num_msgs - 1] = msgid;
1703 /* Sort the message list, so all the msgid's are in order */
1704 num_msgs = sort_msglist(msglist, num_msgs);
1706 /* Determine the highest message number */
1707 highest_msg = msglist[num_msgs - 1];
1709 /* Write it back to disk. */
1710 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long),
1711 msglist, num_msgs * sizeof(long));
1713 /* Free up the memory we used. */
1716 /* Update the highest-message pointer and unlock the room. */
1717 CC->room.QRhighest = highest_msg;
1718 lputroom(&CC->room);
1719 getroom(&CC->room, hold_rm);
1721 /* Bump the reference count for this message. */
1722 if ((flags & SM_DONT_BUMP_REF)==0) {
1723 AdjRefCount(msgid, +1);
1726 /* Return success. */
1727 if (msg != NULL) CtdlFreeMessage(msg);
1734 * Message base operation to send a message to the master file
1735 * (returns new message number)
1737 * This is the back end for CtdlSubmitMsg() and should not be directly
1738 * called by server-side modules.
1741 long send_message(struct CtdlMessage *msg) {
1749 /* Get a new message number */
1750 newmsgid = get_new_message_number();
1751 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1753 /* Generate an ID if we don't have one already */
1754 if (msg->cm_fields['I']==NULL) {
1755 msg->cm_fields['I'] = strdup(msgidbuf);
1758 /* If the message is big, set its body aside for storage elsewhere */
1759 if (msg->cm_fields['M'] != NULL) {
1760 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1762 holdM = msg->cm_fields['M'];
1763 msg->cm_fields['M'] = NULL;
1767 /* Serialize our data structure for storage in the database */
1768 serialize_message(&smr, msg);
1771 msg->cm_fields['M'] = holdM;
1775 cprintf("%d Unable to serialize message\n",
1776 ERROR + INTERNAL_ERROR);
1780 /* Write our little bundle of joy into the message base */
1781 if (cdb_store(CDB_MSGMAIN, &newmsgid, sizeof(long),
1782 smr.ser, smr.len) < 0) {
1783 lprintf(CTDL_ERR, "Can't store message\n");
1787 cdb_store(CDB_BIGMSGS,
1797 /* Free the memory we used for the serialized message */
1800 /* Return the *local* message ID to the caller
1801 * (even if we're storing an incoming network message)
1809 * Serialize a struct CtdlMessage into the format used on disk and network.
1811 * This function loads up a "struct ser_ret" (defined in server.h) which
1812 * contains the length of the serialized message and a pointer to the
1813 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1815 void serialize_message(struct ser_ret *ret, /* return values */
1816 struct CtdlMessage *msg) /* unserialized msg */
1820 static char *forder = FORDER;
1822 if (is_valid_message(msg) == 0) return; /* self check */
1825 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1826 ret->len = ret->len +
1827 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1829 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1830 ret->ser = malloc(ret->len);
1831 if (ret->ser == NULL) {
1837 ret->ser[1] = msg->cm_anon_type;
1838 ret->ser[2] = msg->cm_format_type;
1841 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1842 ret->ser[wlen++] = (char)forder[i];
1843 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1844 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1846 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1847 (long)ret->len, (long)wlen);
1855 * Back end for the ReplicationChecks() function
1857 void check_repl(long msgnum, void *userdata) {
1858 struct CtdlMessage *msg;
1859 time_t timestamp = (-1L);
1861 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1862 msg = CtdlFetchMessage(msgnum, 1);
1863 if (msg == NULL) return;
1864 if (msg->cm_fields['T'] != NULL) {
1865 timestamp = atol(msg->cm_fields['T']);
1867 CtdlFreeMessage(msg);
1869 if (timestamp > msg_repl->highest) {
1870 msg_repl->highest = timestamp; /* newer! */
1871 lprintf(CTDL_DEBUG, "newer!\n");
1874 lprintf(CTDL_DEBUG, "older!\n");
1876 /* Existing isn't newer? Then delete the old one(s). */
1877 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1882 * Check to see if any messages already exist which carry the same Extended ID
1886 * -> With older timestamps: delete them and return 0. Message will be saved.
1887 * -> With newer timestamps: return 1. Message save will be aborted.
1889 int ReplicationChecks(struct CtdlMessage *msg) {
1890 struct CtdlMessage *template;
1893 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1894 /* No extended id? Don't do anything. */
1895 if (msg->cm_fields['E'] == NULL) return 0;
1896 if (strlen(msg->cm_fields['E']) == 0) return 0;
1897 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1899 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1900 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1901 msg_repl->highest = atol(msg->cm_fields['T']);
1903 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1904 memset(template, 0, sizeof(struct CtdlMessage));
1905 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1907 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1909 /* If a newer message exists with the same Extended ID, abort
1912 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1916 CtdlFreeMessage(template);
1917 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1925 * Save a message to disk and submit it into the delivery system.
1927 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1928 struct recptypes *recps, /* recipients (if mail) */
1929 char *force /* force a particular room? */
1932 char hold_rm[ROOMNAMELEN];
1933 char actual_rm[ROOMNAMELEN];
1934 char force_room[ROOMNAMELEN];
1935 char content_type[SIZ]; /* We have to learn this */
1936 char recipient[SIZ];
1939 struct ctdluser userbuf;
1941 struct MetaData smi;
1942 FILE *network_fp = NULL;
1943 static int seqnum = 1;
1944 struct CtdlMessage *imsg = NULL;
1947 char *hold_R, *hold_D;
1949 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1950 if (is_valid_message(msg) == 0) return(-1); /* self check */
1952 /* If this message has no timestamp, we take the liberty of
1953 * giving it one, right now.
1955 if (msg->cm_fields['T'] == NULL) {
1956 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1957 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1958 msg->cm_fields['T'] = strdup(aaa);
1961 /* If this message has no path, we generate one.
1963 if (msg->cm_fields['P'] == NULL) {
1964 lprintf(CTDL_DEBUG, "Generating path\n");
1965 if (msg->cm_fields['A'] != NULL) {
1966 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1967 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1968 if (isspace(msg->cm_fields['P'][a])) {
1969 msg->cm_fields['P'][a] = ' ';
1974 msg->cm_fields['P'] = strdup("unknown");
1978 if (force == NULL) {
1979 strcpy(force_room, "");
1982 strcpy(force_room, force);
1985 /* Learn about what's inside, because it's what's inside that counts */
1986 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1987 if (msg->cm_fields['M'] == NULL) {
1988 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1992 switch (msg->cm_format_type) {
1994 strcpy(content_type, "text/x-citadel-variformat");
1997 strcpy(content_type, "text/plain");
2000 strcpy(content_type, "text/plain");
2001 /* advance past header fields */
2002 mptr = msg->cm_fields['M'];
2005 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2006 safestrncpy(content_type, mptr,
2007 sizeof(content_type));
2008 strcpy(content_type, &content_type[14]);
2009 for (a = 0; a < strlen(content_type); ++a)
2010 if ((content_type[a] == ';')
2011 || (content_type[a] == ' ')
2012 || (content_type[a] == 13)
2013 || (content_type[a] == 10))
2014 content_type[a] = 0;
2021 /* Goto the correct room */
2022 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2023 strcpy(hold_rm, CC->room.QRname);
2024 strcpy(actual_rm, CC->room.QRname);
2025 if (recps != NULL) {
2026 strcpy(actual_rm, SENTITEMS);
2029 /* If the user is a twit, move to the twit room for posting */
2030 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2031 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2033 if (CC->user.axlevel == 2) {
2034 strcpy(hold_rm, actual_rm);
2035 strcpy(actual_rm, config.c_twitroom);
2039 /* ...or if this message is destined for Aide> then go there. */
2040 if (strlen(force_room) > 0) {
2041 strcpy(actual_rm, force_room);
2044 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2045 if (strcasecmp(actual_rm, CC->room.QRname)) {
2046 getroom(&CC->room, actual_rm);
2050 * If this message has no O (room) field, generate one.
2052 if (msg->cm_fields['O'] == NULL) {
2053 msg->cm_fields['O'] = strdup(CC->room.QRname);
2056 /* Perform "before save" hooks (aborting if any return nonzero) */
2057 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2058 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2060 /* If this message has an Extended ID, perform replication checks */
2061 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2062 if (ReplicationChecks(msg) > 0) return(-1);
2064 /* Save it to disk */
2065 lprintf(CTDL_DEBUG, "Saving to disk\n");
2066 newmsgid = send_message(msg);
2067 if (newmsgid <= 0L) return(-1);
2069 /* Write a supplemental message info record. This doesn't have to
2070 * be a critical section because nobody else knows about this message
2073 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2074 memset(&smi, 0, sizeof(struct MetaData));
2075 smi.meta_msgnum = newmsgid;
2076 smi.meta_refcount = 0;
2077 safestrncpy(smi.meta_content_type, content_type, 64);
2080 /* Now figure out where to store the pointers */
2081 lprintf(CTDL_DEBUG, "Storing pointers\n");
2083 /* If this is being done by the networker delivering a private
2084 * message, we want to BYPASS saving the sender's copy (because there
2085 * is no local sender; it would otherwise go to the Trashcan).
2087 if ((!CC->internal_pgm) || (recps == NULL)) {
2088 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2089 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2090 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2094 /* For internet mail, drop a copy in the outbound queue room */
2096 if (recps->num_internet > 0) {
2097 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2100 /* If other rooms are specified, drop them there too. */
2102 if (recps->num_room > 0)
2103 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2104 extract(recipient, recps->recp_room, i);
2105 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2106 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2109 /* Bump this user's messages posted counter. */
2110 lprintf(CTDL_DEBUG, "Updating user\n");
2111 lgetuser(&CC->user, CC->curr_user);
2112 CC->user.posted = CC->user.posted + 1;
2113 lputuser(&CC->user);
2115 /* If this is private, local mail, make a copy in the
2116 * recipient's mailbox and bump the reference count.
2119 if (recps->num_local > 0)
2120 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2121 extract(recipient, recps->recp_local, i);
2122 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2124 if (getuser(&userbuf, recipient) == 0) {
2125 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2126 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2127 BumpNewMailCounter(userbuf.usernum);
2130 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2131 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2135 /* Perform "after save" hooks */
2136 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2137 PerformMessageHooks(msg, EVT_AFTERSAVE);
2139 /* For IGnet mail, we have to save a new copy into the spooler for
2140 * each recipient, with the R and D fields set to the recipient and
2141 * destination-node. This has two ugly side effects: all other
2142 * recipients end up being unlisted in this recipient's copy of the
2143 * message, and it has to deliver multiple messages to the same
2144 * node. We'll revisit this again in a year or so when everyone has
2145 * a network spool receiver that can handle the new style messages.
2148 if (recps->num_ignet > 0)
2149 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2150 extract(recipient, recps->recp_ignet, i);
2152 hold_R = msg->cm_fields['R'];
2153 hold_D = msg->cm_fields['D'];
2154 msg->cm_fields['R'] = malloc(SIZ);
2155 msg->cm_fields['D'] = malloc(SIZ);
2156 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2157 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2159 serialize_message(&smr, msg);
2161 snprintf(aaa, sizeof aaa,
2162 "./network/spoolin/netmail.%04lx.%04x.%04x",
2163 (long) getpid(), CC->cs_pid, ++seqnum);
2164 network_fp = fopen(aaa, "wb+");
2165 if (network_fp != NULL) {
2166 fwrite(smr.ser, smr.len, 1, network_fp);
2172 free(msg->cm_fields['R']);
2173 free(msg->cm_fields['D']);
2174 msg->cm_fields['R'] = hold_R;
2175 msg->cm_fields['D'] = hold_D;
2178 /* Go back to the room we started from */
2179 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2180 if (strcasecmp(hold_rm, CC->room.QRname))
2181 getroom(&CC->room, hold_rm);
2183 /* For internet mail, generate delivery instructions.
2184 * Yes, this is recursive. Deal with it. Infinite recursion does
2185 * not happen because the delivery instructions message does not
2186 * contain a recipient.
2189 if (recps->num_internet > 0) {
2190 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2191 instr = malloc(SIZ * 2);
2192 snprintf(instr, SIZ * 2,
2193 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2195 SPOOLMIME, newmsgid, (long)time(NULL),
2196 msg->cm_fields['A'], msg->cm_fields['N']
2199 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2200 size_t tmp = strlen(instr);
2201 extract(recipient, recps->recp_internet, i);
2202 snprintf(&instr[tmp], SIZ * 2 - tmp,
2203 "remote|%s|0||\n", recipient);
2206 imsg = malloc(sizeof(struct CtdlMessage));
2207 memset(imsg, 0, sizeof(struct CtdlMessage));
2208 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2209 imsg->cm_anon_type = MES_NORMAL;
2210 imsg->cm_format_type = FMT_RFC822;
2211 imsg->cm_fields['A'] = strdup("Citadel");
2212 imsg->cm_fields['M'] = instr;
2213 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2214 CtdlFreeMessage(imsg);
2223 * Convenience function for generating small administrative messages.
2225 void quickie_message(char *from, char *to, char *room, char *text,
2226 int format_type, char *subject)
2228 struct CtdlMessage *msg;
2229 struct recptypes *recp = NULL;
2231 msg = malloc(sizeof(struct CtdlMessage));
2232 memset(msg, 0, sizeof(struct CtdlMessage));
2233 msg->cm_magic = CTDLMESSAGE_MAGIC;
2234 msg->cm_anon_type = MES_NORMAL;
2235 msg->cm_format_type = format_type;
2236 msg->cm_fields['A'] = strdup(from);
2237 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2238 msg->cm_fields['N'] = strdup(NODENAME);
2240 msg->cm_fields['R'] = strdup(to);
2241 recp = validate_recipients(to);
2243 if (subject != NULL) {
2244 msg->cm_fields['U'] = strdup(subject);
2246 msg->cm_fields['M'] = strdup(text);
2248 CtdlSubmitMsg(msg, recp, room);
2249 CtdlFreeMessage(msg);
2250 if (recp != NULL) free(recp);
2256 * Back end function used by CtdlMakeMessage() and similar functions
2258 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2259 size_t maxlen, /* maximum message length */
2260 char *exist, /* if non-null, append to it;
2261 exist is ALWAYS freed */
2262 int crlf /* CRLF newlines instead of LF */
2266 size_t message_len = 0;
2267 size_t buffer_len = 0;
2273 if (exist == NULL) {
2280 message_len = strlen(exist);
2281 buffer_len = message_len + 4096;
2282 m = realloc(exist, buffer_len);
2289 /* flush the input if we have nowhere to store it */
2294 /* read in the lines of message text one by one */
2296 if (client_gets(buf) < 1) finished = 1;
2297 if (!strcmp(buf, terminator)) finished = 1;
2299 strcat(buf, "\r\n");
2305 if ( (!flushing) && (!finished) ) {
2306 /* Measure the line */
2307 linelen = strlen(buf);
2309 /* augment the buffer if we have to */
2310 if ((message_len + linelen) >= buffer_len) {
2311 ptr = realloc(m, (buffer_len * 2) );
2312 if (ptr == NULL) { /* flush if can't allocate */
2315 buffer_len = (buffer_len * 2);
2317 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2321 /* Add the new line to the buffer. NOTE: this loop must avoid
2322 * using functions like strcat() and strlen() because they
2323 * traverse the entire buffer upon every call, and doing that
2324 * for a multi-megabyte message slows it down beyond usability.
2326 strcpy(&m[message_len], buf);
2327 message_len += linelen;
2330 /* if we've hit the max msg length, flush the rest */
2331 if (message_len >= maxlen) flushing = 1;
2333 } while (!finished);
2341 * Build a binary message to be saved on disk.
2342 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2343 * will become part of the message. This means you are no longer
2344 * responsible for managing that memory -- it will be freed along with
2345 * the rest of the fields when CtdlFreeMessage() is called.)
2348 struct CtdlMessage *CtdlMakeMessage(
2349 struct ctdluser *author, /* author's user structure */
2350 char *recipient, /* NULL if it's not mail */
2351 char *room, /* room where it's going */
2352 int type, /* see MES_ types in header file */
2353 int format_type, /* variformat, plain text, MIME... */
2354 char *fake_name, /* who we're masquerading as */
2355 char *subject, /* Subject (optional) */
2356 char *preformatted_text /* ...or NULL to read text from client */
2358 char dest_node[SIZ];
2360 struct CtdlMessage *msg;
2362 msg = malloc(sizeof(struct CtdlMessage));
2363 memset(msg, 0, sizeof(struct CtdlMessage));
2364 msg->cm_magic = CTDLMESSAGE_MAGIC;
2365 msg->cm_anon_type = type;
2366 msg->cm_format_type = format_type;
2368 /* Don't confuse the poor folks if it's not routed mail. */
2369 strcpy(dest_node, "");
2373 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2374 msg->cm_fields['P'] = strdup(buf);
2376 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2377 msg->cm_fields['T'] = strdup(buf);
2379 if (fake_name[0]) /* author */
2380 msg->cm_fields['A'] = strdup(fake_name);
2382 msg->cm_fields['A'] = strdup(author->fullname);
2384 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2385 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2388 msg->cm_fields['O'] = strdup(CC->room.QRname);
2391 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2392 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2394 if (recipient[0] != 0) {
2395 msg->cm_fields['R'] = strdup(recipient);
2397 if (dest_node[0] != 0) {
2398 msg->cm_fields['D'] = strdup(dest_node);
2401 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2402 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2405 if (subject != NULL) {
2407 if (strlen(subject) > 0) {
2408 msg->cm_fields['U'] = strdup(subject);
2412 if (preformatted_text != NULL) {
2413 msg->cm_fields['M'] = preformatted_text;
2416 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2417 config.c_maxmsglen, NULL, 0);
2425 * Check to see whether we have permission to post a message in the current
2426 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2427 * returns 0 on success.
2429 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2431 if (!(CC->logged_in)) {
2432 snprintf(errmsgbuf, n, "Not logged in.");
2433 return (ERROR + NOT_LOGGED_IN);
2436 if ((CC->user.axlevel < 2)
2437 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2438 snprintf(errmsgbuf, n, "Need to be validated to enter "
2439 "(except in %s> to sysop)", MAILROOM);
2440 return (ERROR + HIGHER_ACCESS_REQUIRED);
2443 if ((CC->user.axlevel < 4)
2444 && (CC->room.QRflags & QR_NETWORK)) {
2445 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2446 return (ERROR + HIGHER_ACCESS_REQUIRED);
2449 if ((CC->user.axlevel < 6)
2450 && (CC->room.QRflags & QR_READONLY)) {
2451 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2452 return (ERROR + HIGHER_ACCESS_REQUIRED);
2455 strcpy(errmsgbuf, "Ok");
2461 * Check to see if the specified user has Internet mail permission
2462 * (returns nonzero if permission is granted)
2464 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2466 /* Do not allow twits to send Internet mail */
2467 if (who->axlevel <= 2) return(0);
2469 /* Globally enabled? */
2470 if (config.c_restrict == 0) return(1);
2472 /* User flagged ok? */
2473 if (who->flags & US_INTERNET) return(2);
2475 /* Aide level access? */
2476 if (who->axlevel >= 6) return(3);
2478 /* No mail for you! */
2485 * Validate recipients, count delivery types and errors, and handle aliasing
2486 * FIXME check for dupes!!!!!
2488 struct recptypes *validate_recipients(char *recipients) {
2489 struct recptypes *ret;
2490 char this_recp[SIZ];
2491 char this_recp_cooked[SIZ];
2497 struct ctdluser tempUS;
2498 struct ctdlroom tempQR;
2501 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2502 if (ret == NULL) return(NULL);
2503 memset(ret, 0, sizeof(struct recptypes));
2506 ret->num_internet = 0;
2511 if (recipients == NULL) {
2514 else if (strlen(recipients) == 0) {
2518 /* Change all valid separator characters to commas */
2519 for (i=0; i<strlen(recipients); ++i) {
2520 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2521 recipients[i] = ',';
2526 num_recps = num_tokens(recipients, ',');
2529 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2530 extract_token(this_recp, recipients, i, ',');
2532 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2533 mailtype = alias(this_recp);
2534 mailtype = alias(this_recp);
2535 mailtype = alias(this_recp);
2536 for (j=0; j<=strlen(this_recp); ++j) {
2537 if (this_recp[j]=='_') {
2538 this_recp_cooked[j] = ' ';
2541 this_recp_cooked[j] = this_recp[j];
2547 if (!strcasecmp(this_recp, "sysop")) {
2549 strcpy(this_recp, config.c_aideroom);
2550 if (strlen(ret->recp_room) > 0) {
2551 strcat(ret->recp_room, "|");
2553 strcat(ret->recp_room, this_recp);
2555 else if (getuser(&tempUS, this_recp) == 0) {
2557 strcpy(this_recp, tempUS.fullname);
2558 if (strlen(ret->recp_local) > 0) {
2559 strcat(ret->recp_local, "|");
2561 strcat(ret->recp_local, this_recp);
2563 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2565 strcpy(this_recp, tempUS.fullname);
2566 if (strlen(ret->recp_local) > 0) {
2567 strcat(ret->recp_local, "|");
2569 strcat(ret->recp_local, this_recp);
2571 else if ( (!strncasecmp(this_recp, "room_", 5))
2572 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2574 if (strlen(ret->recp_room) > 0) {
2575 strcat(ret->recp_room, "|");
2577 strcat(ret->recp_room, &this_recp_cooked[5]);
2585 /* Yes, you're reading this correctly: if the target
2586 * domain points back to the local system or an attached
2587 * Citadel directory, the address is invalid. That's
2588 * because if the address were valid, we would have
2589 * already translated it to a local address by now.
2591 if (IsDirectory(this_recp)) {
2596 ++ret->num_internet;
2597 if (strlen(ret->recp_internet) > 0) {
2598 strcat(ret->recp_internet, "|");
2600 strcat(ret->recp_internet, this_recp);
2605 if (strlen(ret->recp_ignet) > 0) {
2606 strcat(ret->recp_ignet, "|");
2608 strcat(ret->recp_ignet, this_recp);
2616 if (strlen(ret->errormsg) == 0) {
2617 snprintf(append, sizeof append,
2618 "Invalid recipient: %s",
2622 snprintf(append, sizeof append,
2625 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2626 strcat(ret->errormsg, append);
2630 if (strlen(ret->display_recp) == 0) {
2631 strcpy(append, this_recp);
2634 snprintf(append, sizeof append, ", %s",
2637 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2638 strcat(ret->display_recp, append);
2643 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2644 ret->num_room + ret->num_error) == 0) {
2646 strcpy(ret->errormsg, "No recipients specified.");
2649 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2650 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2651 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2652 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2653 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2654 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2662 * message entry - mode 0 (normal)
2664 void cmd_ent0(char *entargs)
2668 char masquerade_as[SIZ];
2670 int format_type = 0;
2671 char newusername[SIZ];
2672 struct CtdlMessage *msg;
2676 struct recptypes *valid = NULL;
2681 post = extract_int(entargs, 0);
2682 extract(recp, entargs, 1);
2683 anon_flag = extract_int(entargs, 2);
2684 format_type = extract_int(entargs, 3);
2685 extract(subject, entargs, 4);
2687 /* first check to make sure the request is valid. */
2689 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2691 cprintf("%d %s\n", err, errmsg);
2695 /* Check some other permission type things. */
2698 if (CC->user.axlevel < 6) {
2699 cprintf("%d You don't have permission to masquerade.\n",
2700 ERROR + HIGHER_ACCESS_REQUIRED);
2703 extract(newusername, entargs, 5);
2704 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2705 safestrncpy(CC->fake_postname, newusername,
2706 sizeof(CC->fake_postname) );
2707 cprintf("%d ok\n", CIT_OK);
2710 CC->cs_flags |= CS_POSTING;
2712 /* In the Mail> room we have to behave a little differently --
2713 * make sure the user has specified at least one recipient. Then
2714 * validate the recipient(s).
2716 if ( (CC->room.QRflags & QR_MAILBOX)
2717 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2719 if (CC->user.axlevel < 2) {
2720 strcpy(recp, "sysop");
2723 valid = validate_recipients(recp);
2724 if (valid->num_error > 0) {
2726 ERROR + NO_SUCH_USER, valid->errormsg);
2730 if (valid->num_internet > 0) {
2731 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2732 cprintf("%d You do not have permission "
2733 "to send Internet mail.\n",
2734 ERROR + HIGHER_ACCESS_REQUIRED);
2740 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2741 && (CC->user.axlevel < 4) ) {
2742 cprintf("%d Higher access required for network mail.\n",
2743 ERROR + HIGHER_ACCESS_REQUIRED);
2748 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2749 && ((CC->user.flags & US_INTERNET) == 0)
2750 && (!CC->internal_pgm)) {
2751 cprintf("%d You don't have access to Internet mail.\n",
2752 ERROR + HIGHER_ACCESS_REQUIRED);
2759 /* Is this a room which has anonymous-only or anonymous-option? */
2760 anonymous = MES_NORMAL;
2761 if (CC->room.QRflags & QR_ANONONLY) {
2762 anonymous = MES_ANONONLY;
2764 if (CC->room.QRflags & QR_ANONOPT) {
2765 if (anon_flag == 1) { /* only if the user requested it */
2766 anonymous = MES_ANONOPT;
2770 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2774 /* If we're only checking the validity of the request, return
2775 * success without creating the message.
2778 cprintf("%d %s\n", CIT_OK,
2779 ((valid != NULL) ? valid->display_recp : "") );
2784 /* Handle author masquerading */
2785 if (CC->fake_postname[0]) {
2786 strcpy(masquerade_as, CC->fake_postname);
2788 else if (CC->fake_username[0]) {
2789 strcpy(masquerade_as, CC->fake_username);
2792 strcpy(masquerade_as, "");
2795 /* Read in the message from the client. */
2796 cprintf("%d send message\n", SEND_LISTING);
2797 msg = CtdlMakeMessage(&CC->user, recp,
2798 CC->room.QRname, anonymous, format_type,
2799 masquerade_as, subject, NULL);
2802 CtdlSubmitMsg(msg, valid, "");
2803 CtdlFreeMessage(msg);
2805 CC->fake_postname[0] = '\0';
2813 * API function to delete messages which match a set of criteria
2814 * (returns the actual number of messages deleted)
2816 int CtdlDeleteMessages(char *room_name, /* which room */
2817 long dmsgnum, /* or "0" for any */
2818 char *content_type /* or "" for any */
2822 struct ctdlroom qrbuf;
2823 struct cdbdata *cdbfr;
2824 long *msglist = NULL;
2825 long *dellist = NULL;
2828 int num_deleted = 0;
2830 struct MetaData smi;
2832 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2833 room_name, dmsgnum, content_type);
2835 /* get room record, obtaining a lock... */
2836 if (lgetroom(&qrbuf, room_name) != 0) {
2837 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2839 return (0); /* room not found */
2841 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2843 if (cdbfr != NULL) {
2844 msglist = malloc(cdbfr->len);
2845 dellist = malloc(cdbfr->len);
2846 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2847 num_msgs = cdbfr->len / sizeof(long);
2851 for (i = 0; i < num_msgs; ++i) {
2854 /* Set/clear a bit for each criterion */
2856 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2857 delete_this |= 0x01;
2859 if (strlen(content_type) == 0) {
2860 delete_this |= 0x02;
2862 GetMetaData(&smi, msglist[i]);
2863 if (!strcasecmp(smi.meta_content_type,
2865 delete_this |= 0x02;
2869 /* Delete message only if all bits are set */
2870 if (delete_this == 0x03) {
2871 dellist[num_deleted++] = msglist[i];
2876 num_msgs = sort_msglist(msglist, num_msgs);
2877 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2878 msglist, (num_msgs * sizeof(long)));
2880 qrbuf.QRhighest = msglist[num_msgs - 1];
2884 /* Go through the messages we pulled out of the index, and decrement
2885 * their reference counts by 1. If this is the only room the message
2886 * was in, the reference count will reach zero and the message will
2887 * automatically be deleted from the database. We do this in a
2888 * separate pass because there might be plug-in hooks getting called,
2889 * and we don't want that happening during an S_ROOMS critical
2892 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2893 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2894 AdjRefCount(dellist[i], -1);
2897 /* Now free the memory we used, and go away. */
2898 if (msglist != NULL) free(msglist);
2899 if (dellist != NULL) free(dellist);
2900 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2901 return (num_deleted);
2907 * Check whether the current user has permission to delete messages from
2908 * the current room (returns 1 for yes, 0 for no)
2910 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2911 getuser(&CC->user, CC->curr_user);
2912 if ((CC->user.axlevel < 6)
2913 && (CC->user.usernum != CC->room.QRroomaide)
2914 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2915 && (!(CC->internal_pgm))) {
2924 * Delete message from current room
2926 void cmd_dele(char *delstr)
2931 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2932 cprintf("%d Higher access required.\n",
2933 ERROR + HIGHER_ACCESS_REQUIRED);
2936 delnum = extract_long(delstr, 0);
2938 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2941 cprintf("%d %d message%s deleted.\n", CIT_OK,
2942 num_deleted, ((num_deleted != 1) ? "s" : ""));
2944 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2950 * Back end API function for moves and deletes
2952 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2955 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2956 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2957 if (err != 0) return(err);
2965 * move or copy a message to another room
2967 void cmd_move(char *args)
2971 struct ctdlroom qtemp;
2977 num = extract_long(args, 0);
2978 extract(targ, args, 1);
2979 targ[ROOMNAMELEN - 1] = 0;
2980 is_copy = extract_int(args, 2);
2982 if (getroom(&qtemp, targ) != 0) {
2983 cprintf("%d '%s' does not exist.\n",
2984 ERROR + ROOM_NOT_FOUND, targ);
2988 getuser(&CC->user, CC->curr_user);
2989 ra = CtdlRoomAccess(&qtemp, &CC->user);
2991 /* Check for permission to perform this operation.
2992 * Remember: "CC->room" is source, "qtemp" is target.
2996 /* Aides can move/copy */
2997 if (CC->user.axlevel >= 6) permit = 1;
2999 /* Room aides can move/copy */
3000 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3002 /* Permit move/copy from personal rooms */
3003 if ((CC->room.QRflags & QR_MAILBOX)
3004 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3006 /* Permit only copy from public to personal room */
3008 && (!(CC->room.QRflags & QR_MAILBOX))
3009 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3011 /* User must have access to target room */
3012 if (!(ra & UA_KNOWN)) permit = 0;
3015 cprintf("%d Higher access required.\n",
3016 ERROR + HIGHER_ACCESS_REQUIRED);
3020 err = CtdlCopyMsgToRoom(num, targ);
3022 cprintf("%d Cannot store message in %s: error %d\n",
3027 /* Now delete the message from the source room,
3028 * if this is a 'move' rather than a 'copy' operation.
3031 CtdlDeleteMessages(CC->room.QRname, num, "");
3034 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3040 * GetMetaData() - Get the supplementary record for a message
3042 void GetMetaData(struct MetaData *smibuf, long msgnum)
3045 struct cdbdata *cdbsmi;
3048 memset(smibuf, 0, sizeof(struct MetaData));
3049 smibuf->meta_msgnum = msgnum;
3050 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3052 /* Use the negative of the message number for its supp record index */
3053 TheIndex = (0L - msgnum);
3055 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3056 if (cdbsmi == NULL) {
3057 return; /* record not found; go with defaults */
3059 memcpy(smibuf, cdbsmi->ptr,
3060 ((cdbsmi->len > sizeof(struct MetaData)) ?
3061 sizeof(struct MetaData) : cdbsmi->len));
3068 * PutMetaData() - (re)write supplementary record for a message
3070 void PutMetaData(struct MetaData *smibuf)
3074 /* Use the negative of the message number for the metadata db index */
3075 TheIndex = (0L - smibuf->meta_msgnum);
3077 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3078 smibuf->meta_msgnum, smibuf->meta_refcount);
3080 cdb_store(CDB_MSGMAIN,
3081 &TheIndex, sizeof(long),
3082 smibuf, sizeof(struct MetaData));
3087 * AdjRefCount - change the reference count for a message;
3088 * delete the message if it reaches zero
3090 void AdjRefCount(long msgnum, int incr)
3093 struct MetaData smi;
3096 /* This is a *tight* critical section; please keep it that way, as
3097 * it may get called while nested in other critical sections.
3098 * Complicating this any further will surely cause deadlock!
3100 begin_critical_section(S_SUPPMSGMAIN);
3101 GetMetaData(&smi, msgnum);
3102 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3103 msgnum, smi.meta_refcount);
3104 smi.meta_refcount += incr;
3106 end_critical_section(S_SUPPMSGMAIN);
3107 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3108 msgnum, smi.meta_refcount);
3110 /* If the reference count is now zero, delete the message
3111 * (and its supplementary record as well).
3113 if (smi.meta_refcount == 0) {
3114 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3116 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3117 cdb_delete(CDB_BIGMSGS, &delnum, sizeof(long));
3119 /* We have to delete the metadata record too! */
3120 delnum = (0L - msgnum);
3121 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3126 * Write a generic object to this room
3128 * Note: this could be much more efficient. Right now we use two temporary
3129 * files, and still pull the message into memory as with all others.
3131 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3132 char *content_type, /* MIME type of this object */
3133 char *tempfilename, /* Where to fetch it from */
3134 struct ctdluser *is_mailbox, /* Mailbox room? */
3135 int is_binary, /* Is encoding necessary? */
3136 int is_unique, /* Del others of this type? */
3137 unsigned int flags /* Internal save flags */
3142 struct ctdlroom qrbuf;
3143 char roomname[ROOMNAMELEN];
3144 struct CtdlMessage *msg;
3146 char *raw_message = NULL;
3147 char *encoded_message = NULL;
3148 off_t raw_length = 0;
3150 if (is_mailbox != NULL)
3151 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3153 safestrncpy(roomname, req_room, sizeof(roomname));
3154 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3157 fp = fopen(tempfilename, "rb");
3159 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3160 tempfilename, strerror(errno));
3163 fseek(fp, 0L, SEEK_END);
3164 raw_length = ftell(fp);
3166 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3168 raw_message = malloc((size_t)raw_length + 2);
3169 fread(raw_message, (size_t)raw_length, 1, fp);
3173 encoded_message = malloc((size_t)
3174 (((raw_length * 134) / 100) + 4096 ) );
3177 encoded_message = malloc((size_t)(raw_length + 4096));
3180 sprintf(encoded_message, "Content-type: %s\n", content_type);
3183 sprintf(&encoded_message[strlen(encoded_message)],
3184 "Content-transfer-encoding: base64\n\n"
3188 sprintf(&encoded_message[strlen(encoded_message)],
3189 "Content-transfer-encoding: 7bit\n\n"
3195 &encoded_message[strlen(encoded_message)],
3201 raw_message[raw_length] = 0;
3203 &encoded_message[strlen(encoded_message)],
3211 lprintf(CTDL_DEBUG, "Allocating\n");
3212 msg = malloc(sizeof(struct CtdlMessage));
3213 memset(msg, 0, sizeof(struct CtdlMessage));
3214 msg->cm_magic = CTDLMESSAGE_MAGIC;
3215 msg->cm_anon_type = MES_NORMAL;
3216 msg->cm_format_type = 4;
3217 msg->cm_fields['A'] = strdup(CC->user.fullname);
3218 msg->cm_fields['O'] = strdup(req_room);
3219 msg->cm_fields['N'] = strdup(config.c_nodename);
3220 msg->cm_fields['H'] = strdup(config.c_humannode);
3221 msg->cm_flags = flags;
3223 msg->cm_fields['M'] = encoded_message;
3225 /* Create the requested room if we have to. */
3226 if (getroom(&qrbuf, roomname) != 0) {
3227 create_room(roomname,
3228 ( (is_mailbox != NULL) ? 5 : 3 ),
3229 "", 0, 1, 0, VIEW_BBS);
3231 /* If the caller specified this object as unique, delete all
3232 * other objects of this type that are currently in the room.
3235 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3236 CtdlDeleteMessages(roomname, 0L, content_type));
3238 /* Now write the data */
3239 CtdlSubmitMsg(msg, NULL, roomname);
3240 CtdlFreeMessage(msg);
3248 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3249 config_msgnum = msgnum;
3253 char *CtdlGetSysConfig(char *sysconfname) {
3254 char hold_rm[ROOMNAMELEN];
3257 struct CtdlMessage *msg;
3260 strcpy(hold_rm, CC->room.QRname);
3261 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3262 getroom(&CC->room, hold_rm);
3267 /* We want the last (and probably only) config in this room */
3268 begin_critical_section(S_CONFIG);
3269 config_msgnum = (-1L);
3270 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3271 CtdlGetSysConfigBackend, NULL);
3272 msgnum = config_msgnum;
3273 end_critical_section(S_CONFIG);
3279 msg = CtdlFetchMessage(msgnum, 1);
3281 conf = strdup(msg->cm_fields['M']);
3282 CtdlFreeMessage(msg);
3289 getroom(&CC->room, hold_rm);
3291 if (conf != NULL) do {
3292 extract_token(buf, conf, 0, '\n');
3293 strcpy(conf, &conf[strlen(buf)+1]);
3294 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3299 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3300 char temp[PATH_MAX];
3303 strcpy(temp, tmpnam(NULL));
3305 fp = fopen(temp, "w");
3306 if (fp == NULL) return;
3307 fprintf(fp, "%s", sysconfdata);
3310 /* this handy API function does all the work for us */
3311 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3317 * Determine whether a given Internet address belongs to the current user
3319 int CtdlIsMe(char *addr) {
3320 struct recptypes *recp;
3323 recp = validate_recipients(addr);
3324 if (recp == NULL) return(0);
3326 if (recp->num_local == 0) {
3331 for (i=0; i<recp->num_local; ++i) {
3332 extract(addr, recp->recp_local, i);
3333 if (!strcasecmp(addr, CC->user.fullname)) {
3345 * Citadel protocol command to do the same
3347 void cmd_isme(char *argbuf) {
3350 if (CtdlAccessCheck(ac_logged_in)) return;
3351 extract(addr, argbuf, 0);
3353 if (CtdlIsMe(addr)) {
3354 cprintf("%d %s\n", CIT_OK, addr);
3357 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);