4 * Implements the message store.
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
23 # include <sys/time.h>
39 #include "serv_extensions.h"
43 #include "sysdep_decls.h"
44 #include "citserver.h"
50 #include "mime_parser.h"
53 #include "internet_addressing.h"
55 #define desired_section ((char *)CtdlGetUserData(SYM_DESIRED_SECTION))
56 #define ma ((struct ma_info *)CtdlGetUserData(SYM_MA_INFO))
57 #define msg_repl ((struct repl *)CtdlGetUserData(SYM_REPL))
59 extern struct config config;
64 * This really belongs in serv_network.c, but I don't know how to export
65 * symbols between modules.
67 struct FilterList *filterlist = NULL;
71 * These are the four-character field headers we use when outputting
72 * messages in Citadel format (as opposed to RFC822 format).
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,
82 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
109 * This function is self explanatory.
110 * (What can I say, I'm in a weird mood today...)
112 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
116 for (i = 0; i < strlen(name); ++i) {
117 if (name[i] == '@') {
118 while (isspace(name[i - 1]) && i > 0) {
119 strcpy(&name[i - 1], &name[i]);
122 while (isspace(name[i + 1])) {
123 strcpy(&name[i + 1], &name[i + 2]);
131 * Aliasing for network mail.
132 * (Error messages have been commented out, because this is a server.)
134 int alias(char *name)
135 { /* process alias and routing info for mail */
138 char aaa[SIZ], bbb[SIZ];
139 char *ignetcfg = NULL;
140 char *ignetmap = NULL;
147 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
149 fp = fopen("network/mail.aliases", "r");
151 fp = fopen("/dev/null", "r");
158 while (fgets(aaa, sizeof aaa, fp) != NULL) {
159 while (isspace(name[0]))
160 strcpy(name, &name[1]);
161 aaa[strlen(aaa) - 1] = 0;
163 for (a = 0; a < strlen(aaa); ++a) {
165 strcpy(bbb, &aaa[a + 1]);
169 if (!strcasecmp(name, aaa))
174 /* Hit the Global Address Book */
175 if (CtdlDirectoryLookup(aaa, name) == 0) {
179 lprintf(7, "Mail is being forwarded to %s\n", name);
181 /* Change "user @ xxx" to "user" if xxx is an alias for this host */
182 for (a=0; a<strlen(name); ++a) {
183 if (name[a] == '@') {
184 if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
186 lprintf(7, "Changed to <%s>\n", name);
191 /* determine local or remote type, see citadel.h */
192 at = haschar(name, '@');
193 if (at == 0) return(MES_LOCAL); /* no @'s - local address */
194 if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
195 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
197 /* figure out the delivery mode */
198 extract_token(node, name, 1, '@');
200 /* If there are one or more dots in the nodename, we assume that it
201 * is an FQDN and will attempt SMTP delivery to the Internet.
203 if (haschar(node, '.') > 0) {
204 return(MES_INTERNET);
207 /* Otherwise we look in the IGnet maps for a valid Citadel node.
208 * Try directly-connected nodes first...
210 ignetcfg = CtdlGetSysConfig(IGNETCFG);
211 for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
212 extract_token(buf, ignetcfg, i, '\n');
213 extract_token(testnode, buf, 0, '|');
214 if (!strcasecmp(node, testnode)) {
222 * Then try nodes that are two or more hops away.
224 ignetmap = CtdlGetSysConfig(IGNETMAP);
225 for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
226 extract_token(buf, ignetmap, i, '\n');
227 extract_token(testnode, buf, 0, '|');
228 if (!strcasecmp(node, testnode)) {
235 /* If we get to this point it's an invalid node name */
244 fp = fopen("citadel.control", "r");
245 fread((char *) &CitControl, sizeof(struct CitControl), 1, fp);
251 void simple_listing(long msgnum, void *userdata)
253 cprintf("%ld\n", msgnum);
258 /* Determine if a given message matches the fields in a message template.
259 * Return 0 for a successful match.
261 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
264 /* If there aren't any fields in the template, all messages will
267 if (template == NULL) return(0);
269 /* Null messages are bogus. */
270 if (msg == NULL) return(1);
272 for (i='A'; i<='Z'; ++i) {
273 if (template->cm_fields[i] != NULL) {
274 if (msg->cm_fields[i] == NULL) {
277 if (strcasecmp(msg->cm_fields[i],
278 template->cm_fields[i])) return 1;
282 /* All compares succeeded: we have a match! */
289 * Retrieve the "seen" message list for the current room.
291 void CtdlGetSeen(char *buf, int which_set) {
294 /* Learn about the user and room in question */
295 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
297 if (which_set == ctdlsetseen_seen)
298 safestrncpy(buf, vbuf.v_seen, SIZ);
299 if (which_set == ctdlsetseen_answered)
300 safestrncpy(buf, vbuf.v_answered, SIZ);
306 * Manipulate the "seen msgs" string (or other message set strings)
308 void CtdlSetSeen(long target_msgnum, int target_setting, int which_set) {
310 struct cdbdata *cdbfr;
321 /* Learn about the user and room in question */
322 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
324 /* Load the message list */
325 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
327 msglist = mallok(cdbfr->len);
328 memcpy(msglist, cdbfr->ptr, cdbfr->len);
329 num_msgs = cdbfr->len / sizeof(long);
332 return; /* No messages at all? No further action. */
335 /* Decide which message set we're manipulating */
336 if (which_set == ctdlsetseen_seen) strcpy(vset, vbuf.v_seen);
337 if (which_set == ctdlsetseen_answered) strcpy(vset, vbuf.v_answered);
339 lprintf(9, "before optimize: %s\n", vset);
342 for (i=0; i<num_msgs; ++i) {
345 if (msglist[i] == target_msgnum) {
346 is_seen = target_setting;
349 if (is_msg_in_mset(vset, msglist[i])) {
355 if (lo < 0L) lo = msglist[i];
358 if ( ((is_seen == 0) && (was_seen == 1))
359 || ((is_seen == 1) && (i == num_msgs-1)) ) {
362 if ( (strlen(newseen) + 20) > SIZ) {
363 strcpy(newseen, &newseen[20]);
366 tmp = strlen(newseen);
368 strcat(newseen, ",");
372 snprintf(&newseen[tmp], sizeof newseen - tmp,
376 snprintf(&newseen[tmp], sizeof newseen - tmp,
385 /* Decide which message set we're manipulating */
386 if (which_set == ctdlsetseen_seen) strcpy(vbuf.v_seen, newseen);
387 if (which_set == ctdlsetseen_answered) strcpy(vbuf.v_answered, newseen);
389 lprintf(9, " after optimize: %s\n", newseen);
391 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
396 * API function to perform an operation for each qualifying message in the
397 * current room. (Returns the number of messages processed.)
399 int CtdlForEachMessage(int mode, long ref,
401 struct CtdlMessage *compare,
402 void (*CallBack) (long, void *),
408 struct cdbdata *cdbfr;
409 long *msglist = NULL;
411 int num_processed = 0;
414 struct CtdlMessage *msg;
417 int printed_lastold = 0;
419 /* Learn about the user and room in question */
421 getuser(&CC->user, CC->curr_user);
422 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
424 /* Load the message list */
425 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
427 msglist = mallok(cdbfr->len);
428 memcpy(msglist, cdbfr->ptr, cdbfr->len);
429 num_msgs = cdbfr->len / sizeof(long);
432 return 0; /* No messages at all? No further action. */
437 * Now begin the traversal.
439 if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
441 /* If the caller is looking for a specific MIME type, filter
442 * out all messages which are not of the type requested.
444 if (content_type != NULL) if (strlen(content_type) > 0) {
446 /* This call to GetMetaData() sits inside this loop
447 * so that we only do the extra database read per msg
448 * if we need to. Doing the extra read all the time
449 * really kills the server. If we ever need to use
450 * metadata for another search criterion, we need to
451 * move the read somewhere else -- but still be smart
452 * enough to only do the read if the caller has
453 * specified something that will need it.
455 GetMetaData(&smi, msglist[a]);
457 if (strcasecmp(smi.meta_content_type, content_type)) {
463 num_msgs = sort_msglist(msglist, num_msgs);
465 /* If a template was supplied, filter out the messages which
466 * don't match. (This could induce some delays!)
469 if (compare != NULL) {
470 for (a = 0; a < num_msgs; ++a) {
471 msg = CtdlFetchMessage(msglist[a]);
473 if (CtdlMsgCmp(msg, compare)) {
476 CtdlFreeMessage(msg);
484 * Now iterate through the message list, according to the
485 * criteria supplied by the caller.
488 for (a = 0; a < num_msgs; ++a) {
489 thismsg = msglist[a];
490 is_seen = is_msg_in_mset(vbuf.v_seen, thismsg);
491 if (is_seen) lastold = thismsg;
496 || ((mode == MSGS_OLD) && (is_seen))
497 || ((mode == MSGS_NEW) && (!is_seen))
498 || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
499 || ((mode == MSGS_FIRST) && (a < ref))
500 || ((mode == MSGS_GT) && (thismsg > ref))
501 || ((mode == MSGS_EQ) && (thismsg == ref))
504 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
506 CallBack(lastold, userdata);
510 if (CallBack) CallBack(thismsg, userdata);
514 phree(msglist); /* Clean up */
515 return num_processed;
521 * cmd_msgs() - get list of message #'s in this room
522 * implements the MSGS server command using CtdlForEachMessage()
524 void cmd_msgs(char *cmdbuf)
533 int with_template = 0;
534 struct CtdlMessage *template = NULL;
536 extract(which, cmdbuf, 0);
537 cm_ref = extract_int(cmdbuf, 1);
538 with_template = extract_int(cmdbuf, 2);
542 if (!strncasecmp(which, "OLD", 3))
544 else if (!strncasecmp(which, "NEW", 3))
546 else if (!strncasecmp(which, "FIRST", 5))
548 else if (!strncasecmp(which, "LAST", 4))
550 else if (!strncasecmp(which, "GT", 2))
553 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
554 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
559 cprintf("%d Send template then receive message list\n",
561 template = (struct CtdlMessage *)
562 mallok(sizeof(struct CtdlMessage));
563 memset(template, 0, sizeof(struct CtdlMessage));
564 while(client_gets(buf), strcmp(buf,"000")) {
565 extract(tfield, buf, 0);
566 extract(tvalue, buf, 1);
567 for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
568 if (!strcasecmp(tfield, msgkeys[i])) {
569 template->cm_fields[i] =
576 cprintf("%d Message list...\n", LISTING_FOLLOWS);
579 CtdlForEachMessage(mode, cm_ref,
580 NULL, template, simple_listing, NULL);
581 if (template != NULL) CtdlFreeMessage(template);
589 * help_subst() - support routine for help file viewer
591 void help_subst(char *strbuf, char *source, char *dest)
596 while (p = pattern2(strbuf, source), (p >= 0)) {
597 strcpy(workbuf, &strbuf[p + strlen(source)]);
598 strcpy(&strbuf[p], dest);
599 strcat(strbuf, workbuf);
604 void do_help_subst(char *buffer)
608 help_subst(buffer, "^nodename", config.c_nodename);
609 help_subst(buffer, "^humannode", config.c_humannode);
610 help_subst(buffer, "^fqdn", config.c_fqdn);
611 help_subst(buffer, "^username", CC->user.fullname);
612 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
613 help_subst(buffer, "^usernum", buf2);
614 help_subst(buffer, "^sysadm", config.c_sysadm);
615 help_subst(buffer, "^variantname", CITADEL);
616 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
617 help_subst(buffer, "^maxsessions", buf2);
618 help_subst(buffer, "^bbsdir", BBSDIR);
624 * memfmout() - Citadel text formatter and paginator.
625 * Although the original purpose of this routine was to format
626 * text to the reader's screen width, all we're really using it
627 * for here is to format text out to 80 columns before sending it
628 * to the client. The client software may reformat it again.
631 int width, /* screen width to use */
632 char *mptr, /* where are we going to get our text from? */
633 char subst, /* nonzero if we should do substitutions */
634 char *nl) /* string to terminate lines with */
646 c = 1; /* c is the current pos */
650 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
652 buffer[strlen(buffer) + 1] = 0;
653 buffer[strlen(buffer)] = ch;
656 if (buffer[0] == '^')
657 do_help_subst(buffer);
659 buffer[strlen(buffer) + 1] = 0;
661 strcpy(buffer, &buffer[1]);
669 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
671 if (((old == 13) || (old == 10)) && (isspace(real))) {
679 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
680 cprintf("%s%s", nl, aaa);
689 if ((strlen(aaa) + c) > (width - 5)) {
698 if ((ch == 13) || (ch == 10)) {
699 cprintf("%s%s", aaa, nl);
706 cprintf("%s%s", aaa, nl);
712 * Callback function for mime parser that simply lists the part
714 void list_this_part(char *name, char *filename, char *partnum, char *disp,
715 void *content, char *cbtype, size_t length, char *encoding,
719 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
720 name, filename, partnum, disp, cbtype, (long)length);
724 * Callback function for multipart prefix
726 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
727 void *content, char *cbtype, size_t length, char *encoding,
730 cprintf("pref=%s|%s\n", partnum, cbtype);
734 * Callback function for multipart sufffix
736 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
737 void *content, char *cbtype, size_t length, char *encoding,
740 cprintf("suff=%s|%s\n", partnum, cbtype);
745 * Callback function for mime parser that opens a section for downloading
747 void mime_download(char *name, char *filename, char *partnum, char *disp,
748 void *content, char *cbtype, size_t length, char *encoding,
752 /* Silently go away if there's already a download open... */
753 if (CC->download_fp != NULL)
756 /* ...or if this is not the desired section */
757 if (strcasecmp(desired_section, partnum))
760 CC->download_fp = tmpfile();
761 if (CC->download_fp == NULL)
764 fwrite(content, length, 1, CC->download_fp);
765 fflush(CC->download_fp);
766 rewind(CC->download_fp);
768 OpenCmdResult(filename, cbtype);
774 * Load a message from disk into memory.
775 * This is used by CtdlOutputMsg() and other fetch functions.
777 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
778 * using the CtdlMessageFree() function.
780 struct CtdlMessage *CtdlFetchMessage(long msgnum)
782 struct cdbdata *dmsgtext;
783 struct CtdlMessage *ret = NULL;
786 cit_uint8_t field_header;
789 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
790 if (dmsgtext == NULL) {
793 mptr = dmsgtext->ptr;
795 /* Parse the three bytes that begin EVERY message on disk.
796 * The first is always 0xFF, the on-disk magic number.
797 * The second is the anonymous/public type byte.
798 * The third is the format type byte (vari, fixed, or MIME).
802 lprintf(5, "Message %ld appears to be corrupted.\n", msgnum);
806 ret = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
807 memset(ret, 0, sizeof(struct CtdlMessage));
809 ret->cm_magic = CTDLMESSAGE_MAGIC;
810 ret->cm_anon_type = *mptr++; /* Anon type byte */
811 ret->cm_format_type = *mptr++; /* Format type byte */
814 * The rest is zero or more arbitrary fields. Load them in.
815 * We're done when we encounter either a zero-length field or
816 * have just processed the 'M' (message text) field.
819 field_length = strlen(mptr);
820 if (field_length == 0)
822 field_header = *mptr++;
823 ret->cm_fields[field_header] = mallok(field_length);
824 strcpy(ret->cm_fields[field_header], mptr);
826 while (*mptr++ != 0); /* advance to next field */
828 } while ((field_length > 0) && (field_header != 'M'));
832 /* Always make sure there's something in the msg text field */
833 if (ret->cm_fields['M'] == NULL)
834 ret->cm_fields['M'] = strdoop("<no text>\n");
836 /* Perform "before read" hooks (aborting if any return nonzero) */
837 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
838 CtdlFreeMessage(ret);
847 * Returns 1 if the supplied pointer points to a valid Citadel message.
848 * If the pointer is NULL or the magic number check fails, returns 0.
850 int is_valid_message(struct CtdlMessage *msg) {
853 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
854 lprintf(3, "is_valid_message() -- self-check failed\n");
862 * 'Destructor' for struct CtdlMessage
864 void CtdlFreeMessage(struct CtdlMessage *msg)
868 if (is_valid_message(msg) == 0) return;
870 for (i = 0; i < 256; ++i)
871 if (msg->cm_fields[i] != NULL) {
872 phree(msg->cm_fields[i]);
875 msg->cm_magic = 0; /* just in case */
881 * Pre callback function for multipart/alternative
883 * NOTE: this differs from the standard behavior for a reason. Normally when
884 * displaying multipart/alternative you want to show the _last_ usable
885 * format in the message. Here we show the _first_ one, because it's
886 * usually text/plain. Since this set of functions is designed for text
887 * output to non-MIME-aware clients, this is the desired behavior.
890 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
891 void *content, char *cbtype, size_t length, char *encoding,
894 lprintf(9, "fixed_output_pre() type=<%s>\n", cbtype);
895 if (!strcasecmp(cbtype, "multipart/alternative")) {
903 * Post callback function for multipart/alternative
905 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
906 void *content, char *cbtype, size_t length, char *encoding,
909 lprintf(9, "fixed_output_post() type=<%s>\n", cbtype);
910 if (!strcasecmp(cbtype, "multipart/alternative")) {
918 * Inline callback function for mime parser that wants to display text
920 void fixed_output(char *name, char *filename, char *partnum, char *disp,
921 void *content, char *cbtype, size_t length, char *encoding,
928 lprintf(9, "fixed_output() type=<%s>\n", cbtype);
931 * If we're in the middle of a multipart/alternative scope and
932 * we've already printed another section, skip this one.
934 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
935 lprintf(9, "Skipping part %s (%s)\n", partnum, cbtype);
940 if ( (!strcasecmp(cbtype, "text/plain"))
941 || (strlen(cbtype)==0) ) {
944 client_write(wptr, length);
945 if (wptr[length-1] != '\n') {
950 else if (!strcasecmp(cbtype, "text/html")) {
951 ptr = html_to_ascii(content, 80, 0);
953 client_write(ptr, wlen);
954 if (ptr[wlen-1] != '\n') {
959 else if (strncasecmp(cbtype, "multipart/", 10)) {
960 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
961 partnum, filename, cbtype, (long)length);
966 * The client is elegant and sophisticated and wants to be choosy about
967 * MIME content types, so figure out which multipart/alternative part
968 * we're going to send.
970 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
971 void *content, char *cbtype, size_t length, char *encoding,
978 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
979 extract(buf, CC->preferred_formats, i);
980 if (!strcasecmp(buf, cbtype)) {
981 strcpy(ma->chosen_part, partnum);
988 * Now that we've chosen our preferred part, output it.
990 void output_preferred(char *name, char *filename, char *partnum, char *disp,
991 void *content, char *cbtype, size_t length, char *encoding,
999 /* This is not the MIME part you're looking for... */
1000 if (strcasecmp(partnum, ma->chosen_part)) return;
1002 /* If the content-type of this part is in our preferred formats
1003 * list, we can simply output it verbatim.
1005 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1006 extract(buf, CC->preferred_formats, i);
1007 if (!strcasecmp(buf, cbtype)) {
1008 /* Yeah! Go! W00t!! */
1010 text_content = (char *)content;
1011 if (text_content[length-1] != '\n') {
1015 cprintf("Content-type: %s\n", cbtype);
1016 cprintf("Content-length: %d\n",
1017 (int)(length + add_newline) );
1018 if (strlen(encoding) > 0) {
1019 cprintf("Content-transfer-encoding: %s\n", encoding);
1022 cprintf("Content-transfer-encoding: 7bit\n");
1025 client_write(content, length);
1026 if (add_newline) cprintf("\n");
1031 /* No translations required or possible: output as text/plain */
1032 cprintf("Content-type: text/plain\n\n");
1033 fixed_output(name, filename, partnum, disp, content, cbtype,
1034 length, encoding, cbuserdata);
1039 * Get a message off disk. (returns om_* values found in msgbase.h)
1042 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1043 int mode, /* how would you like that message? */
1044 int headers_only, /* eschew the message body? */
1045 int do_proto, /* do Citadel protocol responses? */
1046 int crlf /* Use CRLF newlines instead of LF? */
1048 struct CtdlMessage *TheMessage;
1051 lprintf(7, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1056 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1057 if (do_proto) cprintf("%d Not logged in.\n",
1058 ERROR + NOT_LOGGED_IN);
1059 return(om_not_logged_in);
1062 /* FIXME ... small security issue
1063 * We need to check to make sure the requested message is actually
1064 * in the current room, and set msg_ok to 1 only if it is. This
1065 * functionality is currently missing because I'm in a hurry to replace
1066 * broken production code with nonbroken pre-beta code. :( -- ajc
1069 if (do_proto) cprintf("%d Message %ld is not in this room.\n",
1071 return(om_no_such_msg);
1076 * Fetch the message from disk.
1078 TheMessage = CtdlFetchMessage(msg_num);
1080 if (TheMessage == NULL) {
1081 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1083 return(om_no_such_msg);
1086 retcode = CtdlOutputPreLoadedMsg(
1087 TheMessage, msg_num, mode,
1088 headers_only, do_proto, crlf);
1090 CtdlFreeMessage(TheMessage);
1097 * Get a message off disk. (returns om_* values found in msgbase.h)
1100 int CtdlOutputPreLoadedMsg(struct CtdlMessage *TheMessage,
1102 int mode, /* how would you like that message? */
1103 int headers_only, /* eschew the message body? */
1104 int do_proto, /* do Citadel protocol responses? */
1105 int crlf /* Use CRLF newlines instead of LF? */
1111 char display_name[SIZ];
1113 char *nl; /* newline string */
1115 int subject_found = 0;
1117 /* buffers needed for RFC822 translation */
1124 char datestamp[SIZ];
1127 snprintf(mid, sizeof mid, "%ld", msg_num);
1128 nl = (crlf ? "\r\n" : "\n");
1130 if (!is_valid_message(TheMessage)) {
1131 lprintf(1, "ERROR: invalid preloaded message for output\n");
1132 return(om_no_such_msg);
1135 /* Are we downloading a MIME component? */
1136 if (mode == MT_DOWNLOAD) {
1137 if (TheMessage->cm_format_type != FMT_RFC822) {
1139 cprintf("%d This is not a MIME message.\n",
1141 } else if (CC->download_fp != NULL) {
1142 if (do_proto) cprintf(
1143 "%d You already have a download open.\n",
1146 /* Parse the message text component */
1147 mptr = TheMessage->cm_fields['M'];
1148 mime_parser(mptr, NULL,
1149 *mime_download, NULL, NULL,
1151 /* If there's no file open by this time, the requested
1152 * section wasn't found, so print an error
1154 if (CC->download_fp == NULL) {
1155 if (do_proto) cprintf(
1156 "%d Section %s not found.\n",
1157 ERROR + FILE_NOT_FOUND,
1161 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1164 /* now for the user-mode message reading loops */
1165 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1167 /* Does the caller want to skip the headers? */
1168 if (headers_only == HEADERS_NONE) goto START_TEXT;
1170 /* Tell the client which format type we're using. */
1171 if ( (mode == MT_CITADEL) && (do_proto) ) {
1172 cprintf("type=%d\n", TheMessage->cm_format_type);
1175 /* nhdr=yes means that we're only displaying headers, no body */
1176 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1177 && (mode == MT_CITADEL)
1180 cprintf("nhdr=yes\n");
1183 /* begin header processing loop for Citadel message format */
1185 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1187 strcpy(display_name, "<unknown>");
1188 if (TheMessage->cm_fields['A']) {
1189 strcpy(buf, TheMessage->cm_fields['A']);
1190 PerformUserHooks(buf, (-1L), EVT_OUTPUTMSG);
1191 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1192 strcpy(display_name, "****");
1194 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1195 strcpy(display_name, "anonymous");
1198 strcpy(display_name, buf);
1200 if ((is_room_aide())
1201 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1202 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1203 size_t tmp = strlen(display_name);
1204 snprintf(&display_name[tmp],
1205 sizeof display_name - tmp,
1210 /* Don't show Internet address for users on the
1211 * local Citadel network.
1214 if (TheMessage->cm_fields['N'] != NULL)
1215 if (strlen(TheMessage->cm_fields['N']) > 0)
1216 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1220 /* Now spew the header fields in the order we like them. */
1221 strcpy(allkeys, FORDER);
1222 for (i=0; i<strlen(allkeys); ++i) {
1223 k = (int) allkeys[i];
1225 if ( (TheMessage->cm_fields[k] != NULL)
1226 && (msgkeys[k] != NULL) ) {
1228 if (do_proto) cprintf("%s=%s\n",
1232 else if ((k == 'F') && (suppress_f)) {
1235 /* Masquerade display name if needed */
1237 if (do_proto) cprintf("%s=%s\n",
1239 TheMessage->cm_fields[k]
1248 /* begin header processing loop for RFC822 transfer format */
1253 strcpy(snode, NODENAME);
1254 strcpy(lnode, HUMANNODE);
1255 if (mode == MT_RFC822) {
1256 cprintf("X-UIDL: %ld%s", msg_num, nl);
1257 for (i = 0; i < 256; ++i) {
1258 if (TheMessage->cm_fields[i]) {
1259 mptr = TheMessage->cm_fields[i];
1262 strcpy(luser, mptr);
1263 strcpy(suser, mptr);
1266 "Path:" removed for now because it confuses brain-dead Microsoft shitware
1267 into thinking that mail messages are newsgroup messages instead. When we
1268 add NNTP support back into Citadel we'll have to add code to only output
1269 this field when appropriate.
1270 else if (i == 'P') {
1271 cprintf("Path: %s%s", mptr, nl);
1274 else if (i == 'U') {
1275 cprintf("Subject: %s%s", mptr, nl);
1279 safestrncpy(mid, mptr, sizeof mid);
1281 safestrncpy(lnode, mptr, sizeof lnode);
1283 safestrncpy(fuser, mptr, sizeof fuser);
1285 cprintf("X-Citadel-Room: %s%s",
1288 safestrncpy(snode, mptr, sizeof snode);
1290 cprintf("To: %s%s", mptr, nl);
1291 else if (i == 'T') {
1292 datestring(datestamp, sizeof datestamp,
1293 atol(mptr), DATESTRING_RFC822);
1294 cprintf("Date: %s%s", datestamp, nl);
1298 if (subject_found == 0) {
1299 cprintf("Subject: (no subject)%s", nl);
1303 for (i=0; i<strlen(suser); ++i) {
1304 suser[i] = tolower(suser[i]);
1305 if (!isalnum(suser[i])) suser[i]='_';
1308 if (mode == MT_RFC822) {
1309 if (!strcasecmp(snode, NODENAME)) {
1310 strcpy(snode, FQDN);
1313 /* Construct a fun message id */
1314 cprintf("Message-ID: <%s", mid);
1315 if (strchr(mid, '@')==NULL) {
1316 cprintf("@%s", snode);
1320 PerformUserHooks(luser, (-1L), EVT_OUTPUTMSG);
1322 if (strlen(fuser) > 0) {
1323 cprintf("From: %s (%s)%s", fuser, luser, nl);
1326 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1329 cprintf("Organization: %s%s", lnode, nl);
1331 /* Blank line signifying RFC822 end-of-headers */
1332 if (TheMessage->cm_format_type != FMT_RFC822) {
1337 /* end header processing loop ... at this point, we're in the text */
1339 mptr = TheMessage->cm_fields['M'];
1341 /* Tell the client about the MIME parts in this message */
1342 if (TheMessage->cm_format_type == FMT_RFC822) {
1343 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1344 mime_parser(mptr, NULL,
1350 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1351 /* FIXME ... we have to put some code in here to avoid
1352 * printing duplicate header information when both
1353 * Citadel and RFC822 headers exist. Preference should
1354 * probably be given to the RFC822 headers.
1356 int done_rfc822_hdrs = 0;
1357 while (ch=*(mptr++), ch!=0) {
1362 if (!done_rfc822_hdrs) {
1363 if (headers_only != HEADERS_NONE) {
1368 if (headers_only != HEADERS_ONLY) {
1372 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1373 done_rfc822_hdrs = 1;
1377 if (done_rfc822_hdrs) {
1378 if (headers_only != HEADERS_NONE) {
1383 if (headers_only != HEADERS_ONLY) {
1387 if ((*mptr == 13) || (*mptr == 10)) {
1388 done_rfc822_hdrs = 1;
1396 if (headers_only == HEADERS_ONLY) {
1400 /* signify start of msg text */
1401 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1402 if (do_proto) cprintf("text\n");
1405 /* If the format type on disk is 1 (fixed-format), then we want
1406 * everything to be output completely literally ... regardless of
1407 * what message transfer format is in use.
1409 if (TheMessage->cm_format_type == FMT_FIXED) {
1410 if (mode == MT_MIME) {
1411 cprintf("Content-type: text/plain\n\n");
1414 while (ch = *mptr++, ch > 0) {
1417 if ((ch == 10) || (strlen(buf) > 250)) {
1418 cprintf("%s%s", buf, nl);
1421 buf[strlen(buf) + 1] = 0;
1422 buf[strlen(buf)] = ch;
1425 if (strlen(buf) > 0)
1426 cprintf("%s%s", buf, nl);
1429 /* If the message on disk is format 0 (Citadel vari-format), we
1430 * output using the formatter at 80 columns. This is the final output
1431 * form if the transfer format is RFC822, but if the transfer format
1432 * is Citadel proprietary, it'll still work, because the indentation
1433 * for new paragraphs is correct and the client will reformat the
1434 * message to the reader's screen width.
1436 if (TheMessage->cm_format_type == FMT_CITADEL) {
1437 if (mode == MT_MIME) {
1438 cprintf("Content-type: text/x-citadel-variformat\n\n");
1440 memfmout(80, mptr, 0, nl);
1443 /* If the message on disk is format 4 (MIME), we've gotta hand it
1444 * off to the MIME parser. The client has already been told that
1445 * this message is format 1 (fixed format), so the callback function
1446 * we use will display those parts as-is.
1448 if (TheMessage->cm_format_type == FMT_RFC822) {
1449 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1450 memset(ma, 0, sizeof(struct ma_info));
1452 if (mode == MT_MIME) {
1453 strcpy(ma->chosen_part, "1");
1454 mime_parser(mptr, NULL,
1455 *choose_preferred, *fixed_output_pre,
1456 *fixed_output_post, NULL, 0);
1457 mime_parser(mptr, NULL,
1458 *output_preferred, NULL, NULL, NULL, 0);
1461 mime_parser(mptr, NULL,
1462 *fixed_output, *fixed_output_pre,
1463 *fixed_output_post, NULL, 0);
1467 DONE: /* now we're done */
1468 if (do_proto) cprintf("000\n");
1475 * display a message (mode 0 - Citadel proprietary)
1477 void cmd_msg0(char *cmdbuf)
1480 int headers_only = HEADERS_ALL;
1482 msgid = extract_long(cmdbuf, 0);
1483 headers_only = extract_int(cmdbuf, 1);
1485 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1491 * display a message (mode 2 - RFC822)
1493 void cmd_msg2(char *cmdbuf)
1496 int headers_only = HEADERS_ALL;
1498 msgid = extract_long(cmdbuf, 0);
1499 headers_only = extract_int(cmdbuf, 1);
1501 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1507 * display a message (mode 3 - IGnet raw format - internal programs only)
1509 void cmd_msg3(char *cmdbuf)
1512 struct CtdlMessage *msg;
1515 if (CC->internal_pgm == 0) {
1516 cprintf("%d This command is for internal programs only.\n",
1521 msgnum = extract_long(cmdbuf, 0);
1522 msg = CtdlFetchMessage(msgnum);
1524 cprintf("%d Message %ld not found.\n",
1529 serialize_message(&smr, msg);
1530 CtdlFreeMessage(msg);
1533 cprintf("%d Unable to serialize message\n",
1534 ERROR+INTERNAL_ERROR);
1538 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1539 client_write(smr.ser, smr.len);
1546 * Display a message using MIME content types
1548 void cmd_msg4(char *cmdbuf)
1552 msgid = extract_long(cmdbuf, 0);
1553 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1559 * Client tells us its preferred message format(s)
1561 void cmd_msgp(char *cmdbuf)
1563 safestrncpy(CC->preferred_formats, cmdbuf,
1564 sizeof(CC->preferred_formats));
1565 cprintf("%d ok\n", CIT_OK);
1570 * Open a component of a MIME message as a download file
1572 void cmd_opna(char *cmdbuf)
1576 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1578 msgid = extract_long(cmdbuf, 0);
1579 extract(desired_section, cmdbuf, 1);
1581 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1586 * Save a message pointer into a specified room
1587 * (Returns 0 for success, nonzero for failure)
1588 * roomname may be NULL to use the current room
1590 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1592 char hold_rm[ROOMNAMELEN];
1593 struct cdbdata *cdbfr;
1596 long highest_msg = 0L;
1597 struct CtdlMessage *msg = NULL;
1599 lprintf(9, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1600 roomname, msgid, flags);
1602 strcpy(hold_rm, CC->room.QRname);
1604 /* We may need to check to see if this message is real */
1605 if ( (flags & SM_VERIFY_GOODNESS)
1606 || (flags & SM_DO_REPL_CHECK)
1608 msg = CtdlFetchMessage(msgid);
1609 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1612 /* Perform replication checks if necessary */
1613 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1615 if (getroom(&CC->room,
1616 ((roomname != NULL) ? roomname : CC->room.QRname) )
1618 lprintf(9, "No such room <%s>\n", roomname);
1619 if (msg != NULL) CtdlFreeMessage(msg);
1620 return(ERROR + ROOM_NOT_FOUND);
1623 if (ReplicationChecks(msg) != 0) {
1624 getroom(&CC->room, hold_rm);
1625 if (msg != NULL) CtdlFreeMessage(msg);
1626 lprintf(9, "Did replication, and newer exists\n");
1631 /* Now the regular stuff */
1632 if (lgetroom(&CC->room,
1633 ((roomname != NULL) ? roomname : CC->room.QRname) )
1635 lprintf(9, "No such room <%s>\n", roomname);
1636 if (msg != NULL) CtdlFreeMessage(msg);
1637 return(ERROR + ROOM_NOT_FOUND);
1640 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1641 if (cdbfr == NULL) {
1645 msglist = mallok(cdbfr->len);
1646 if (msglist == NULL)
1647 lprintf(3, "ERROR malloc msglist!\n");
1648 num_msgs = cdbfr->len / sizeof(long);
1649 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1654 /* Make sure the message doesn't already exist in this room. It
1655 * is absolutely taboo to have more than one reference to the same
1656 * message in a room.
1658 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1659 if (msglist[i] == msgid) {
1660 lputroom(&CC->room); /* unlock the room */
1661 getroom(&CC->room, hold_rm);
1662 if (msg != NULL) CtdlFreeMessage(msg);
1663 return(ERROR + ALREADY_EXISTS);
1667 /* Now add the new message */
1669 msglist = reallok(msglist,
1670 (num_msgs * sizeof(long)));
1672 if (msglist == NULL) {
1673 lprintf(3, "ERROR: can't realloc message list!\n");
1675 msglist[num_msgs - 1] = msgid;
1677 /* Sort the message list, so all the msgid's are in order */
1678 num_msgs = sort_msglist(msglist, num_msgs);
1680 /* Determine the highest message number */
1681 highest_msg = msglist[num_msgs - 1];
1683 /* Write it back to disk. */
1684 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long),
1685 msglist, num_msgs * sizeof(long));
1687 /* Free up the memory we used. */
1690 /* Update the highest-message pointer and unlock the room. */
1691 CC->room.QRhighest = highest_msg;
1692 lputroom(&CC->room);
1693 getroom(&CC->room, hold_rm);
1695 /* Bump the reference count for this message. */
1696 if ((flags & SM_DONT_BUMP_REF)==0) {
1697 AdjRefCount(msgid, +1);
1700 /* Return success. */
1701 if (msg != NULL) CtdlFreeMessage(msg);
1708 * Message base operation to send a message to the master file
1709 * (returns new message number)
1711 * This is the back end for CtdlSubmitMsg() and should not be directly
1712 * called by server-side modules.
1715 long send_message(struct CtdlMessage *msg, /* pointer to buffer */
1716 FILE *save_a_copy) /* save a copy to disk? */
1723 /* Get a new message number */
1724 newmsgid = get_new_message_number();
1725 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1727 /* Generate an ID if we don't have one already */
1728 if (msg->cm_fields['I']==NULL) {
1729 msg->cm_fields['I'] = strdoop(msgidbuf);
1732 serialize_message(&smr, msg);
1735 cprintf("%d Unable to serialize message\n",
1736 ERROR+INTERNAL_ERROR);
1740 /* Write our little bundle of joy into the message base */
1741 if (cdb_store(CDB_MSGMAIN, &newmsgid, sizeof(long),
1742 smr.ser, smr.len) < 0) {
1743 lprintf(2, "Can't store message\n");
1749 /* If the caller specified that a copy should be saved to a particular
1750 * file handle, do that now too.
1752 if (save_a_copy != NULL) {
1753 fwrite(smr.ser, smr.len, 1, save_a_copy);
1756 /* Free the memory we used for the serialized message */
1759 /* Return the *local* message ID to the caller
1760 * (even if we're storing an incoming network message)
1768 * Serialize a struct CtdlMessage into the format used on disk and network.
1770 * This function loads up a "struct ser_ret" (defined in server.h) which
1771 * contains the length of the serialized message and a pointer to the
1772 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1774 void serialize_message(struct ser_ret *ret, /* return values */
1775 struct CtdlMessage *msg) /* unserialized msg */
1779 static char *forder = FORDER;
1781 if (is_valid_message(msg) == 0) return; /* self check */
1784 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1785 ret->len = ret->len +
1786 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1788 lprintf(9, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1789 ret->ser = mallok(ret->len);
1790 if (ret->ser == NULL) {
1796 ret->ser[1] = msg->cm_anon_type;
1797 ret->ser[2] = msg->cm_format_type;
1800 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1801 ret->ser[wlen++] = (char)forder[i];
1802 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1803 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1805 if (ret->len != wlen) lprintf(3, "ERROR: len=%ld wlen=%ld\n",
1806 (long)ret->len, (long)wlen);
1814 * Back end for the ReplicationChecks() function
1816 void check_repl(long msgnum, void *userdata) {
1817 struct CtdlMessage *msg;
1818 time_t timestamp = (-1L);
1820 lprintf(9, "check_repl() found message %ld\n", msgnum);
1821 msg = CtdlFetchMessage(msgnum);
1822 if (msg == NULL) return;
1823 if (msg->cm_fields['T'] != NULL) {
1824 timestamp = atol(msg->cm_fields['T']);
1826 CtdlFreeMessage(msg);
1828 if (timestamp > msg_repl->highest) {
1829 msg_repl->highest = timestamp; /* newer! */
1830 lprintf(9, "newer!\n");
1833 lprintf(9, "older!\n");
1835 /* Existing isn't newer? Then delete the old one(s). */
1836 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1841 * Check to see if any messages already exist which carry the same Extended ID
1845 * -> With older timestamps: delete them and return 0. Message will be saved.
1846 * -> With newer timestamps: return 1. Message save will be aborted.
1848 int ReplicationChecks(struct CtdlMessage *msg) {
1849 struct CtdlMessage *template;
1852 lprintf(9, "ReplicationChecks() started\n");
1853 /* No extended id? Don't do anything. */
1854 if (msg->cm_fields['E'] == NULL) return 0;
1855 if (strlen(msg->cm_fields['E']) == 0) return 0;
1856 lprintf(9, "Extended ID: <%s>\n", msg->cm_fields['E']);
1858 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1859 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1860 msg_repl->highest = atol(msg->cm_fields['T']);
1862 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1863 memset(template, 0, sizeof(struct CtdlMessage));
1864 template->cm_fields['E'] = strdoop(msg->cm_fields['E']);
1866 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1868 /* If a newer message exists with the same Extended ID, abort
1871 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1875 CtdlFreeMessage(template);
1876 lprintf(9, "ReplicationChecks() returning %d\n", abort_this);
1884 * Save a message to disk and submit it into the delivery system.
1886 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1887 struct recptypes *recps, /* recipients (if mail) */
1888 char *force /* force a particular room? */
1891 char hold_rm[ROOMNAMELEN];
1892 char actual_rm[ROOMNAMELEN];
1893 char force_room[ROOMNAMELEN];
1894 char content_type[SIZ]; /* We have to learn this */
1895 char recipient[SIZ];
1898 struct ctdluser userbuf;
1900 struct MetaData smi;
1901 FILE *network_fp = NULL;
1902 static int seqnum = 1;
1903 struct CtdlMessage *imsg = NULL;
1906 char *hold_R, *hold_D;
1908 lprintf(9, "CtdlSubmitMsg() called\n");
1909 if (is_valid_message(msg) == 0) return(-1); /* self check */
1911 /* If this message has no timestamp, we take the liberty of
1912 * giving it one, right now.
1914 if (msg->cm_fields['T'] == NULL) {
1915 lprintf(9, "Generating timestamp\n");
1916 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1917 msg->cm_fields['T'] = strdoop(aaa);
1920 /* If this message has no path, we generate one.
1922 if (msg->cm_fields['P'] == NULL) {
1923 lprintf(9, "Generating path\n");
1924 if (msg->cm_fields['A'] != NULL) {
1925 msg->cm_fields['P'] = strdoop(msg->cm_fields['A']);
1926 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1927 if (isspace(msg->cm_fields['P'][a])) {
1928 msg->cm_fields['P'][a] = ' ';
1933 msg->cm_fields['P'] = strdoop("unknown");
1937 if (force == NULL) {
1938 strcpy(force_room, "");
1941 strcpy(force_room, force);
1944 /* Learn about what's inside, because it's what's inside that counts */
1945 lprintf(9, "Learning what's inside\n");
1946 if (msg->cm_fields['M'] == NULL) {
1947 lprintf(1, "ERROR: attempt to save message with NULL body\n");
1950 switch (msg->cm_format_type) {
1952 strcpy(content_type, "text/x-citadel-variformat");
1955 strcpy(content_type, "text/plain");
1958 strcpy(content_type, "text/plain");
1959 /* advance past header fields */
1960 mptr = msg->cm_fields['M'];
1963 if (!strncasecmp(mptr, "Content-type: ", 14)) {
1964 safestrncpy(content_type, mptr,
1965 sizeof(content_type));
1966 strcpy(content_type, &content_type[14]);
1967 for (a = 0; a < strlen(content_type); ++a)
1968 if ((content_type[a] == ';')
1969 || (content_type[a] == ' ')
1970 || (content_type[a] == 13)
1971 || (content_type[a] == 10))
1972 content_type[a] = 0;
1979 /* Goto the correct room */
1980 lprintf(9, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
1981 strcpy(hold_rm, CC->room.QRname);
1982 strcpy(actual_rm, CC->room.QRname);
1983 if (recps != NULL) {
1984 strcpy(actual_rm, SENTITEMS);
1987 /* If the user is a twit, move to the twit room for posting */
1988 lprintf(9, "Handling twit stuff: %s\n",
1989 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
1991 if (CC->user.axlevel == 2) {
1992 strcpy(hold_rm, actual_rm);
1993 strcpy(actual_rm, config.c_twitroom);
1997 /* ...or if this message is destined for Aide> then go there. */
1998 if (strlen(force_room) > 0) {
1999 strcpy(actual_rm, force_room);
2002 lprintf(9, "Final selection: %s\n", actual_rm);
2003 if (strcasecmp(actual_rm, CC->room.QRname)) {
2004 getroom(&CC->room, actual_rm);
2008 * If this message has no O (room) field, generate one.
2010 if (msg->cm_fields['O'] == NULL) {
2011 msg->cm_fields['O'] = strdoop(CC->room.QRname);
2014 /* Perform "before save" hooks (aborting if any return nonzero) */
2015 lprintf(9, "Performing before-save hooks\n");
2016 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2018 /* If this message has an Extended ID, perform replication checks */
2019 lprintf(9, "Performing replication checks\n");
2020 if (ReplicationChecks(msg) > 0) return(-1);
2022 /* Save it to disk */
2023 lprintf(9, "Saving to disk\n");
2024 newmsgid = send_message(msg, NULL);
2025 if (newmsgid <= 0L) return(-1);
2027 /* Write a supplemental message info record. This doesn't have to
2028 * be a critical section because nobody else knows about this message
2031 lprintf(9, "Creating MetaData record\n");
2032 memset(&smi, 0, sizeof(struct MetaData));
2033 smi.meta_msgnum = newmsgid;
2034 smi.meta_refcount = 0;
2035 safestrncpy(smi.meta_content_type, content_type, 64);
2038 /* Now figure out where to store the pointers */
2039 lprintf(9, "Storing pointers\n");
2041 /* If this is being done by the networker delivering a private
2042 * message, we want to BYPASS saving the sender's copy (because there
2043 * is no local sender; it would otherwise go to the Trashcan).
2045 if ((!CC->internal_pgm) || (recps == NULL)) {
2046 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2047 lprintf(3, "ERROR saving message pointer!\n");
2048 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2052 /* For internet mail, drop a copy in the outbound queue room */
2054 if (recps->num_internet > 0) {
2055 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2058 /* If other rooms are specified, drop them there too. */
2060 if (recps->num_room > 0)
2061 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2062 extract(recipient, recps->recp_room, i);
2063 lprintf(9, "Delivering to local room <%s>\n", recipient);
2064 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2067 /* Bump this user's messages posted counter. */
2068 lprintf(9, "Updating user\n");
2069 lgetuser(&CC->user, CC->curr_user);
2070 CC->user.posted = CC->user.posted + 1;
2071 lputuser(&CC->user);
2073 /* If this is private, local mail, make a copy in the
2074 * recipient's mailbox and bump the reference count.
2077 if (recps->num_local > 0)
2078 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2079 extract(recipient, recps->recp_local, i);
2080 lprintf(9, "Delivering private local mail to <%s>\n",
2082 if (getuser(&userbuf, recipient) == 0) {
2083 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2084 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2085 BumpNewMailCounter(userbuf.usernum);
2088 lprintf(9, "No user <%s>\n", recipient);
2089 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2093 /* Perform "after save" hooks */
2094 lprintf(9, "Performing after-save hooks\n");
2095 PerformMessageHooks(msg, EVT_AFTERSAVE);
2097 /* For IGnet mail, we have to save a new copy into the spooler for
2098 * each recipient, with the R and D fields set to the recipient and
2099 * destination-node. This has two ugly side effects: all other
2100 * recipients end up being unlisted in this recipient's copy of the
2101 * message, and it has to deliver multiple messages to the same
2102 * node. We'll revisit this again in a year or so when everyone has
2103 * a network spool receiver that can handle the new style messages.
2106 if (recps->num_ignet > 0)
2107 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2108 extract(recipient, recps->recp_ignet, i);
2110 hold_R = msg->cm_fields['R'];
2111 hold_D = msg->cm_fields['D'];
2112 msg->cm_fields['R'] = mallok(SIZ);
2113 msg->cm_fields['D'] = mallok(SIZ);
2114 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2115 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2117 serialize_message(&smr, msg);
2119 snprintf(aaa, sizeof aaa,
2120 "./network/spoolin/netmail.%04lx.%04x.%04x",
2121 (long) getpid(), CC->cs_pid, ++seqnum);
2122 network_fp = fopen(aaa, "wb+");
2123 if (network_fp != NULL) {
2124 fwrite(smr.ser, smr.len, 1, network_fp);
2130 phree(msg->cm_fields['R']);
2131 phree(msg->cm_fields['D']);
2132 msg->cm_fields['R'] = hold_R;
2133 msg->cm_fields['D'] = hold_D;
2136 /* Go back to the room we started from */
2137 lprintf(9, "Returning to original room %s\n", hold_rm);
2138 if (strcasecmp(hold_rm, CC->room.QRname))
2139 getroom(&CC->room, hold_rm);
2141 /* For internet mail, generate delivery instructions.
2142 * Yes, this is recursive. Deal with it. Infinite recursion does
2143 * not happen because the delivery instructions message does not
2144 * contain a recipient.
2147 if (recps->num_internet > 0) {
2148 lprintf(9, "Generating delivery instructions\n");
2149 instr = mallok(SIZ * 2);
2150 snprintf(instr, SIZ * 2,
2151 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2153 SPOOLMIME, newmsgid, (long)time(NULL),
2154 msg->cm_fields['A'], msg->cm_fields['N']
2157 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2158 size_t tmp = strlen(instr);
2159 extract(recipient, recps->recp_internet, i);
2160 snprintf(&instr[tmp], SIZ * 2 - tmp,
2161 "remote|%s|0||\n", recipient);
2164 imsg = mallok(sizeof(struct CtdlMessage));
2165 memset(imsg, 0, sizeof(struct CtdlMessage));
2166 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2167 imsg->cm_anon_type = MES_NORMAL;
2168 imsg->cm_format_type = FMT_RFC822;
2169 imsg->cm_fields['A'] = strdoop("Citadel");
2170 imsg->cm_fields['M'] = instr;
2171 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2172 CtdlFreeMessage(imsg);
2181 * Convenience function for generating small administrative messages.
2183 void quickie_message(char *from, char *to, char *room, char *text,
2184 int format_type, char *subject)
2186 struct CtdlMessage *msg;
2187 struct recptypes *recp = NULL;
2189 msg = mallok(sizeof(struct CtdlMessage));
2190 memset(msg, 0, sizeof(struct CtdlMessage));
2191 msg->cm_magic = CTDLMESSAGE_MAGIC;
2192 msg->cm_anon_type = MES_NORMAL;
2193 msg->cm_format_type = format_type;
2194 msg->cm_fields['A'] = strdoop(from);
2195 if (room != NULL) msg->cm_fields['O'] = strdoop(room);
2196 msg->cm_fields['N'] = strdoop(NODENAME);
2198 msg->cm_fields['R'] = strdoop(to);
2199 recp = validate_recipients(to);
2201 if (subject != NULL) {
2202 msg->cm_fields['U'] = strdoop(subject);
2204 msg->cm_fields['M'] = strdoop(text);
2206 CtdlSubmitMsg(msg, recp, room);
2207 CtdlFreeMessage(msg);
2208 if (recp != NULL) phree(recp);
2214 * Back end function used by CtdlMakeMessage() and similar functions
2216 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2217 size_t maxlen, /* maximum message length */
2218 char *exist, /* if non-null, append to it;
2219 exist is ALWAYS freed */
2220 int crlf /* CRLF newlines instead of LF */
2224 size_t message_len = 0;
2225 size_t buffer_len = 0;
2231 if (exist == NULL) {
2238 message_len = strlen(exist);
2239 buffer_len = message_len + 4096;
2240 m = reallok(exist, buffer_len);
2247 /* flush the input if we have nowhere to store it */
2252 /* read in the lines of message text one by one */
2254 if (client_gets(buf) < 1) finished = 1;
2255 if (!strcmp(buf, terminator)) finished = 1;
2257 strcat(buf, "\r\n");
2263 if ( (!flushing) && (!finished) ) {
2264 /* Measure the line */
2265 linelen = strlen(buf);
2267 /* augment the buffer if we have to */
2268 if ((message_len + linelen) >= buffer_len) {
2269 ptr = reallok(m, (buffer_len * 2) );
2270 if (ptr == NULL) { /* flush if can't allocate */
2273 buffer_len = (buffer_len * 2);
2275 lprintf(9, "buffer_len is now %ld\n", (long)buffer_len);
2279 /* Add the new line to the buffer. NOTE: this loop must avoid
2280 * using functions like strcat() and strlen() because they
2281 * traverse the entire buffer upon every call, and doing that
2282 * for a multi-megabyte message slows it down beyond usability.
2284 strcpy(&m[message_len], buf);
2285 message_len += linelen;
2288 /* if we've hit the max msg length, flush the rest */
2289 if (message_len >= maxlen) flushing = 1;
2291 } while (!finished);
2299 * Build a binary message to be saved on disk.
2300 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2301 * will become part of the message. This means you are no longer
2302 * responsible for managing that memory -- it will be freed along with
2303 * the rest of the fields when CtdlFreeMessage() is called.)
2306 struct CtdlMessage *CtdlMakeMessage(
2307 struct ctdluser *author, /* author's user structure */
2308 char *recipient, /* NULL if it's not mail */
2309 char *room, /* room where it's going */
2310 int type, /* see MES_ types in header file */
2311 int format_type, /* variformat, plain text, MIME... */
2312 char *fake_name, /* who we're masquerading as */
2313 char *subject, /* Subject (optional) */
2314 char *preformatted_text /* ...or NULL to read text from client */
2316 char dest_node[SIZ];
2318 struct CtdlMessage *msg;
2320 msg = mallok(sizeof(struct CtdlMessage));
2321 memset(msg, 0, sizeof(struct CtdlMessage));
2322 msg->cm_magic = CTDLMESSAGE_MAGIC;
2323 msg->cm_anon_type = type;
2324 msg->cm_format_type = format_type;
2326 /* Don't confuse the poor folks if it's not routed mail. */
2327 strcpy(dest_node, "");
2331 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2332 msg->cm_fields['P'] = strdoop(buf);
2334 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2335 msg->cm_fields['T'] = strdoop(buf);
2337 if (fake_name[0]) /* author */
2338 msg->cm_fields['A'] = strdoop(fake_name);
2340 msg->cm_fields['A'] = strdoop(author->fullname);
2342 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2343 msg->cm_fields['O'] = strdoop(&CC->room.QRname[11]);
2346 msg->cm_fields['O'] = strdoop(CC->room.QRname);
2349 msg->cm_fields['N'] = strdoop(NODENAME); /* nodename */
2350 msg->cm_fields['H'] = strdoop(HUMANNODE); /* hnodename */
2352 if (recipient[0] != 0) {
2353 msg->cm_fields['R'] = strdoop(recipient);
2355 if (dest_node[0] != 0) {
2356 msg->cm_fields['D'] = strdoop(dest_node);
2359 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2360 msg->cm_fields['F'] = strdoop(CC->cs_inet_email);
2363 if (subject != NULL) {
2365 if (strlen(subject) > 0) {
2366 msg->cm_fields['U'] = strdoop(subject);
2370 if (preformatted_text != NULL) {
2371 msg->cm_fields['M'] = preformatted_text;
2374 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2375 config.c_maxmsglen, NULL, 0);
2383 * Check to see whether we have permission to post a message in the current
2384 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2385 * returns 0 on success.
2387 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2389 if (!(CC->logged_in)) {
2390 snprintf(errmsgbuf, n, "Not logged in.");
2391 return (ERROR + NOT_LOGGED_IN);
2394 if ((CC->user.axlevel < 2)
2395 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2396 snprintf(errmsgbuf, n, "Need to be validated to enter "
2397 "(except in %s> to sysop)", MAILROOM);
2398 return (ERROR + HIGHER_ACCESS_REQUIRED);
2401 if ((CC->user.axlevel < 4)
2402 && (CC->room.QRflags & QR_NETWORK)) {
2403 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2404 return (ERROR + HIGHER_ACCESS_REQUIRED);
2407 if ((CC->user.axlevel < 6)
2408 && (CC->room.QRflags & QR_READONLY)) {
2409 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2410 return (ERROR + HIGHER_ACCESS_REQUIRED);
2413 strcpy(errmsgbuf, "Ok");
2419 * Check to see if the specified user has Internet mail permission
2420 * (returns nonzero if permission is granted)
2422 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2424 /* Globally enabled? */
2425 if (config.c_restrict == 0) return(1);
2427 /* User flagged ok? */
2428 if (who->flags & US_INTERNET) return(2);
2430 /* Aide level access? */
2431 if (who->axlevel >= 6) return(3);
2433 /* No mail for you! */
2440 * Validate recipients, count delivery types and errors, and handle aliasing
2441 * FIXME check for dupes!!!!!
2443 struct recptypes *validate_recipients(char *recipients) {
2444 struct recptypes *ret;
2445 char this_recp[SIZ];
2446 char this_recp_cooked[SIZ];
2452 struct ctdluser tempUS;
2453 struct ctdlroom tempQR;
2456 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2457 if (ret == NULL) return(NULL);
2458 memset(ret, 0, sizeof(struct recptypes));
2461 ret->num_internet = 0;
2466 if (recipients == NULL) {
2469 else if (strlen(recipients) == 0) {
2473 /* Change all valid separator characters to commas */
2474 for (i=0; i<strlen(recipients); ++i) {
2475 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2476 recipients[i] = ',';
2481 num_recps = num_tokens(recipients, ',');
2484 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2485 extract_token(this_recp, recipients, i, ',');
2487 lprintf(9, "Evaluating recipient #%d <%s>\n", i, this_recp);
2488 mailtype = alias(this_recp);
2489 mailtype = alias(this_recp);
2490 mailtype = alias(this_recp);
2491 for (j=0; j<=strlen(this_recp); ++j) {
2492 if (this_recp[j]=='_') {
2493 this_recp_cooked[j] = ' ';
2496 this_recp_cooked[j] = this_recp[j];
2502 if (!strcasecmp(this_recp, "sysop")) {
2504 strcpy(this_recp, config.c_aideroom);
2505 if (strlen(ret->recp_room) > 0) {
2506 strcat(ret->recp_room, "|");
2508 strcat(ret->recp_room, this_recp);
2510 else if (getuser(&tempUS, this_recp) == 0) {
2512 strcpy(this_recp, tempUS.fullname);
2513 if (strlen(ret->recp_local) > 0) {
2514 strcat(ret->recp_local, "|");
2516 strcat(ret->recp_local, this_recp);
2518 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2520 strcpy(this_recp, tempUS.fullname);
2521 if (strlen(ret->recp_local) > 0) {
2522 strcat(ret->recp_local, "|");
2524 strcat(ret->recp_local, this_recp);
2526 else if ( (!strncasecmp(this_recp, "room_", 5))
2527 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2529 if (strlen(ret->recp_room) > 0) {
2530 strcat(ret->recp_room, "|");
2532 strcat(ret->recp_room, &this_recp_cooked[5]);
2540 /* Yes, you're reading this correctly: if the target
2541 * domain points back to the local system or an attached
2542 * Citadel directory, the address is invalid. That's
2543 * because if the address were valid, we would have
2544 * already translated it to a local address by now.
2546 if (IsDirectory(this_recp)) {
2551 ++ret->num_internet;
2552 if (strlen(ret->recp_internet) > 0) {
2553 strcat(ret->recp_internet, "|");
2555 strcat(ret->recp_internet, this_recp);
2560 if (strlen(ret->recp_ignet) > 0) {
2561 strcat(ret->recp_ignet, "|");
2563 strcat(ret->recp_ignet, this_recp);
2571 if (strlen(ret->errormsg) == 0) {
2572 snprintf(append, sizeof append,
2573 "Invalid recipient: %s",
2577 snprintf(append, sizeof append,
2580 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2581 strcat(ret->errormsg, append);
2585 if (strlen(ret->display_recp) == 0) {
2586 strcpy(append, this_recp);
2589 snprintf(append, sizeof append, ", %s",
2592 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2593 strcat(ret->display_recp, append);
2598 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2599 ret->num_room + ret->num_error) == 0) {
2601 strcpy(ret->errormsg, "No recipients specified.");
2604 lprintf(9, "validate_recipients()\n");
2605 lprintf(9, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2606 lprintf(9, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2607 lprintf(9, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2608 lprintf(9, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2609 lprintf(9, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2617 * message entry - mode 0 (normal)
2619 void cmd_ent0(char *entargs)
2623 char masquerade_as[SIZ];
2625 int format_type = 0;
2626 char newusername[SIZ];
2627 struct CtdlMessage *msg;
2631 struct recptypes *valid = NULL;
2634 post = extract_int(entargs, 0);
2635 extract(recp, entargs, 1);
2636 anon_flag = extract_int(entargs, 2);
2637 format_type = extract_int(entargs, 3);
2638 extract(subject, entargs, 4);
2640 /* first check to make sure the request is valid. */
2642 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2644 cprintf("%d %s\n", err, errmsg);
2648 /* Check some other permission type things. */
2651 if (CC->user.axlevel < 6) {
2652 cprintf("%d You don't have permission to masquerade.\n",
2653 ERROR + HIGHER_ACCESS_REQUIRED);
2656 extract(newusername, entargs, 5);
2657 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2658 safestrncpy(CC->fake_postname, newusername,
2659 sizeof(CC->fake_postname) );
2660 cprintf("%d ok\n", CIT_OK);
2663 CC->cs_flags |= CS_POSTING;
2665 /* In the Mail> room we have to behave a little differently --
2666 * make sure the user has specified at least one recipient. Then
2667 * validate the recipient(s).
2669 if ( (CC->room.QRflags & QR_MAILBOX)
2670 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2672 if (CC->user.axlevel < 2) {
2673 strcpy(recp, "sysop");
2676 valid = validate_recipients(recp);
2677 if (valid->num_error > 0) {
2679 ERROR + NO_SUCH_USER, valid->errormsg);
2683 if (valid->num_internet > 0) {
2684 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2685 cprintf("%d You do not have permission "
2686 "to send Internet mail.\n",
2687 ERROR + HIGHER_ACCESS_REQUIRED);
2693 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2694 && (CC->user.axlevel < 4) ) {
2695 cprintf("%d Higher access required for network mail.\n",
2696 ERROR + HIGHER_ACCESS_REQUIRED);
2701 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2702 && ((CC->user.flags & US_INTERNET) == 0)
2703 && (!CC->internal_pgm)) {
2704 cprintf("%d You don't have access to Internet mail.\n",
2705 ERROR + HIGHER_ACCESS_REQUIRED);
2712 /* Is this a room which has anonymous-only or anonymous-option? */
2713 anonymous = MES_NORMAL;
2714 if (CC->room.QRflags & QR_ANONONLY) {
2715 anonymous = MES_ANONONLY;
2717 if (CC->room.QRflags & QR_ANONOPT) {
2718 if (anon_flag == 1) { /* only if the user requested it */
2719 anonymous = MES_ANONOPT;
2723 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2727 /* If we're only checking the validity of the request, return
2728 * success without creating the message.
2731 cprintf("%d %s\n", CIT_OK,
2732 ((valid != NULL) ? valid->display_recp : "") );
2737 /* Handle author masquerading */
2738 if (CC->fake_postname[0]) {
2739 strcpy(masquerade_as, CC->fake_postname);
2741 else if (CC->fake_username[0]) {
2742 strcpy(masquerade_as, CC->fake_username);
2745 strcpy(masquerade_as, "");
2748 /* Read in the message from the client. */
2749 cprintf("%d send message\n", SEND_LISTING);
2750 msg = CtdlMakeMessage(&CC->user, recp,
2751 CC->room.QRname, anonymous, format_type,
2752 masquerade_as, subject, NULL);
2755 CtdlSubmitMsg(msg, valid, "");
2756 CtdlFreeMessage(msg);
2758 CC->fake_postname[0] = '\0';
2766 * API function to delete messages which match a set of criteria
2767 * (returns the actual number of messages deleted)
2769 int CtdlDeleteMessages(char *room_name, /* which room */
2770 long dmsgnum, /* or "0" for any */
2771 char *content_type /* or "" for any */
2775 struct ctdlroom qrbuf;
2776 struct cdbdata *cdbfr;
2777 long *msglist = NULL;
2778 long *dellist = NULL;
2781 int num_deleted = 0;
2783 struct MetaData smi;
2785 lprintf(9, "CtdlDeleteMessages(%s, %ld, %s)\n",
2786 room_name, dmsgnum, content_type);
2788 /* get room record, obtaining a lock... */
2789 if (lgetroom(&qrbuf, room_name) != 0) {
2790 lprintf(7, "CtdlDeleteMessages(): Room <%s> not found\n",
2792 return (0); /* room not found */
2794 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2796 if (cdbfr != NULL) {
2797 msglist = mallok(cdbfr->len);
2798 dellist = mallok(cdbfr->len);
2799 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2800 num_msgs = cdbfr->len / sizeof(long);
2804 for (i = 0; i < num_msgs; ++i) {
2807 /* Set/clear a bit for each criterion */
2809 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2810 delete_this |= 0x01;
2812 if (strlen(content_type) == 0) {
2813 delete_this |= 0x02;
2815 GetMetaData(&smi, msglist[i]);
2816 if (!strcasecmp(smi.meta_content_type,
2818 delete_this |= 0x02;
2822 /* Delete message only if all bits are set */
2823 if (delete_this == 0x03) {
2824 dellist[num_deleted++] = msglist[i];
2829 num_msgs = sort_msglist(msglist, num_msgs);
2830 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2831 msglist, (num_msgs * sizeof(long)));
2833 qrbuf.QRhighest = msglist[num_msgs - 1];
2837 /* Go through the messages we pulled out of the index, and decrement
2838 * their reference counts by 1. If this is the only room the message
2839 * was in, the reference count will reach zero and the message will
2840 * automatically be deleted from the database. We do this in a
2841 * separate pass because there might be plug-in hooks getting called,
2842 * and we don't want that happening during an S_ROOMS critical
2845 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2846 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2847 AdjRefCount(dellist[i], -1);
2850 /* Now free the memory we used, and go away. */
2851 if (msglist != NULL) phree(msglist);
2852 if (dellist != NULL) phree(dellist);
2853 lprintf(9, "%d message(s) deleted.\n", num_deleted);
2854 return (num_deleted);
2860 * Check whether the current user has permission to delete messages from
2861 * the current room (returns 1 for yes, 0 for no)
2863 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2864 getuser(&CC->user, CC->curr_user);
2865 if ((CC->user.axlevel < 6)
2866 && (CC->user.usernum != CC->room.QRroomaide)
2867 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2868 && (!(CC->internal_pgm))) {
2877 * Delete message from current room
2879 void cmd_dele(char *delstr)
2884 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2885 cprintf("%d Higher access required.\n",
2886 ERROR + HIGHER_ACCESS_REQUIRED);
2889 delnum = extract_long(delstr, 0);
2891 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2894 cprintf("%d %d message%s deleted.\n", CIT_OK,
2895 num_deleted, ((num_deleted != 1) ? "s" : ""));
2897 cprintf("%d Message %ld not found.\n", ERROR, delnum);
2903 * Back end API function for moves and deletes
2905 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2908 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2909 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2910 if (err != 0) return(err);
2918 * move or copy a message to another room
2920 void cmd_move(char *args)
2924 struct ctdlroom qtemp;
2928 num = extract_long(args, 0);
2929 extract(targ, args, 1);
2930 targ[ROOMNAMELEN - 1] = 0;
2931 is_copy = extract_int(args, 2);
2933 if (getroom(&qtemp, targ) != 0) {
2934 cprintf("%d '%s' does not exist.\n", ERROR, targ);
2938 getuser(&CC->user, CC->curr_user);
2939 /* Aides can move/copy */
2940 if ((CC->user.axlevel < 6)
2941 /* Roomaides can move/copy */
2942 && (CC->user.usernum != CC->room.QRroomaide)
2943 /* Permit move/copy to/from personal rooms */
2944 && (!((CC->room.QRflags & QR_MAILBOX)
2945 && (qtemp.QRflags & QR_MAILBOX)))
2946 /* Permit only copy from public to personal room */
2947 && (!(is_copy && !(CC->room.QRflags & QR_MAILBOX)
2948 && (qtemp.QRflags & QR_MAILBOX)))) {
2949 cprintf("%d Higher access required.\n",
2950 ERROR + HIGHER_ACCESS_REQUIRED);
2954 err = CtdlCopyMsgToRoom(num, targ);
2956 cprintf("%d Cannot store message in %s: error %d\n",
2961 /* Now delete the message from the source room,
2962 * if this is a 'move' rather than a 'copy' operation.
2965 CtdlDeleteMessages(CC->room.QRname, num, "");
2968 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
2974 * GetMetaData() - Get the supplementary record for a message
2976 void GetMetaData(struct MetaData *smibuf, long msgnum)
2979 struct cdbdata *cdbsmi;
2982 memset(smibuf, 0, sizeof(struct MetaData));
2983 smibuf->meta_msgnum = msgnum;
2984 smibuf->meta_refcount = 1; /* Default reference count is 1 */
2986 /* Use the negative of the message number for its supp record index */
2987 TheIndex = (0L - msgnum);
2989 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
2990 if (cdbsmi == NULL) {
2991 return; /* record not found; go with defaults */
2993 memcpy(smibuf, cdbsmi->ptr,
2994 ((cdbsmi->len > sizeof(struct MetaData)) ?
2995 sizeof(struct MetaData) : cdbsmi->len));
3002 * PutMetaData() - (re)write supplementary record for a message
3004 void PutMetaData(struct MetaData *smibuf)
3008 /* Use the negative of the message number for the metadata db index */
3009 TheIndex = (0L - smibuf->meta_msgnum);
3011 lprintf(9, "PutMetaData(%ld) - ref count is %d\n",
3012 smibuf->meta_msgnum, smibuf->meta_refcount);
3014 cdb_store(CDB_MSGMAIN,
3015 &TheIndex, sizeof(long),
3016 smibuf, sizeof(struct MetaData));
3021 * AdjRefCount - change the reference count for a message;
3022 * delete the message if it reaches zero
3024 void AdjRefCount(long msgnum, int incr)
3027 struct MetaData smi;
3030 /* This is a *tight* critical section; please keep it that way, as
3031 * it may get called while nested in other critical sections.
3032 * Complicating this any further will surely cause deadlock!
3034 begin_critical_section(S_SUPPMSGMAIN);
3035 GetMetaData(&smi, msgnum);
3036 lprintf(9, "Ref count for message <%ld> before write is <%d>\n",
3037 msgnum, smi.meta_refcount);
3038 smi.meta_refcount += incr;
3040 end_critical_section(S_SUPPMSGMAIN);
3041 lprintf(9, "Ref count for message <%ld> after write is <%d>\n",
3042 msgnum, smi.meta_refcount);
3044 /* If the reference count is now zero, delete the message
3045 * (and its supplementary record as well).
3047 if (smi.meta_refcount == 0) {
3048 lprintf(9, "Deleting message <%ld>\n", msgnum);
3050 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3052 /* We have to delete the metadata record too! */
3053 delnum = (0L - msgnum);
3054 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3059 * Write a generic object to this room
3061 * Note: this could be much more efficient. Right now we use two temporary
3062 * files, and still pull the message into memory as with all others.
3064 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3065 char *content_type, /* MIME type of this object */
3066 char *tempfilename, /* Where to fetch it from */
3067 struct ctdluser *is_mailbox, /* Mailbox room? */
3068 int is_binary, /* Is encoding necessary? */
3069 int is_unique, /* Del others of this type? */
3070 unsigned int flags /* Internal save flags */
3075 struct ctdlroom qrbuf;
3076 char roomname[ROOMNAMELEN];
3077 struct CtdlMessage *msg;
3079 char *raw_message = NULL;
3080 char *encoded_message = NULL;
3081 off_t raw_length = 0;
3083 if (is_mailbox != NULL)
3084 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3086 safestrncpy(roomname, req_room, sizeof(roomname));
3087 lprintf(9, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3090 fp = fopen(tempfilename, "rb");
3092 lprintf(5, "Cannot open %s: %s\n",
3093 tempfilename, strerror(errno));
3096 fseek(fp, 0L, SEEK_END);
3097 raw_length = ftell(fp);
3099 lprintf(9, "Raw length is %ld\n", (long)raw_length);
3101 raw_message = mallok((size_t)raw_length + 2);
3102 fread(raw_message, (size_t)raw_length, 1, fp);
3106 encoded_message = mallok((size_t)
3107 (((raw_length * 134) / 100) + 4096 ) );
3110 encoded_message = mallok((size_t)(raw_length + 4096));
3113 sprintf(encoded_message, "Content-type: %s\n", content_type);
3116 sprintf(&encoded_message[strlen(encoded_message)],
3117 "Content-transfer-encoding: base64\n\n"
3121 sprintf(&encoded_message[strlen(encoded_message)],
3122 "Content-transfer-encoding: 7bit\n\n"
3128 &encoded_message[strlen(encoded_message)],
3134 raw_message[raw_length] = 0;
3136 &encoded_message[strlen(encoded_message)],
3144 lprintf(9, "Allocating\n");
3145 msg = mallok(sizeof(struct CtdlMessage));
3146 memset(msg, 0, sizeof(struct CtdlMessage));
3147 msg->cm_magic = CTDLMESSAGE_MAGIC;
3148 msg->cm_anon_type = MES_NORMAL;
3149 msg->cm_format_type = 4;
3150 msg->cm_fields['A'] = strdoop(CC->user.fullname);
3151 msg->cm_fields['O'] = strdoop(req_room);
3152 msg->cm_fields['N'] = strdoop(config.c_nodename);
3153 msg->cm_fields['H'] = strdoop(config.c_humannode);
3154 msg->cm_flags = flags;
3156 msg->cm_fields['M'] = encoded_message;
3158 /* Create the requested room if we have to. */
3159 if (getroom(&qrbuf, roomname) != 0) {
3160 create_room(roomname,
3161 ( (is_mailbox != NULL) ? 5 : 3 ),
3164 /* If the caller specified this object as unique, delete all
3165 * other objects of this type that are currently in the room.
3168 lprintf(9, "Deleted %d other msgs of this type\n",
3169 CtdlDeleteMessages(roomname, 0L, content_type));
3171 /* Now write the data */
3172 CtdlSubmitMsg(msg, NULL, roomname);
3173 CtdlFreeMessage(msg);
3181 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3182 config_msgnum = msgnum;
3186 char *CtdlGetSysConfig(char *sysconfname) {
3187 char hold_rm[ROOMNAMELEN];
3190 struct CtdlMessage *msg;
3193 strcpy(hold_rm, CC->room.QRname);
3194 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3195 getroom(&CC->room, hold_rm);
3200 /* We want the last (and probably only) config in this room */
3201 begin_critical_section(S_CONFIG);
3202 config_msgnum = (-1L);
3203 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3204 CtdlGetSysConfigBackend, NULL);
3205 msgnum = config_msgnum;
3206 end_critical_section(S_CONFIG);
3212 msg = CtdlFetchMessage(msgnum);
3214 conf = strdoop(msg->cm_fields['M']);
3215 CtdlFreeMessage(msg);
3222 getroom(&CC->room, hold_rm);
3224 if (conf != NULL) do {
3225 extract_token(buf, conf, 0, '\n');
3226 strcpy(conf, &conf[strlen(buf)+1]);
3227 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3232 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3233 char temp[PATH_MAX];
3236 strcpy(temp, tmpnam(NULL));
3238 fp = fopen(temp, "w");
3239 if (fp == NULL) return;
3240 fprintf(fp, "%s", sysconfdata);
3243 /* this handy API function does all the work for us */
3244 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3250 * Determine whether a given Internet address belongs to the current user
3252 int CtdlIsMe(char *addr) {
3253 struct recptypes *recp;
3256 recp = validate_recipients(addr);
3257 if (recp == NULL) return(0);
3259 if (recp->num_local == 0) {
3264 for (i=0; i<recp->num_local; ++i) {
3265 extract(addr, recp->recp_local, i);
3266 if (!strcasecmp(addr, CC->user.fullname)) {
3278 * Citadel protocol command to do the same
3280 void cmd_isme(char *argbuf) {
3283 if (CtdlAccessCheck(ac_logged_in)) return;
3284 extract(addr, argbuf, 0);
3286 if (CtdlIsMe(addr)) {
3287 cprintf("%d %s\n", CIT_OK, addr);
3290 cprintf("%d Not you.\n", ERROR);