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 extern struct config config;
59 * This really belongs in serv_network.c, but I don't know how to export
60 * symbols between modules.
62 struct FilterList *filterlist = NULL;
66 * These are the four-character field headers we use when outputting
67 * messages in Citadel format (as opposed to RFC822 format).
70 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
71 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
72 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
73 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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,
104 * This function is self explanatory.
105 * (What can I say, I'm in a weird mood today...)
107 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
111 for (i = 0; i < strlen(name); ++i) {
112 if (name[i] == '@') {
113 while (isspace(name[i - 1]) && i > 0) {
114 strcpy(&name[i - 1], &name[i]);
117 while (isspace(name[i + 1])) {
118 strcpy(&name[i + 1], &name[i + 2]);
126 * Aliasing for network mail.
127 * (Error messages have been commented out, because this is a server.)
129 int alias(char *name)
130 { /* process alias and routing info for mail */
133 char aaa[SIZ], bbb[SIZ];
134 char *ignetcfg = NULL;
135 char *ignetmap = NULL;
142 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
144 fp = fopen("network/mail.aliases", "r");
146 fp = fopen("/dev/null", "r");
153 while (fgets(aaa, sizeof aaa, fp) != NULL) {
154 while (isspace(name[0]))
155 strcpy(name, &name[1]);
156 aaa[strlen(aaa) - 1] = 0;
158 for (a = 0; a < strlen(aaa); ++a) {
160 strcpy(bbb, &aaa[a + 1]);
164 if (!strcasecmp(name, aaa))
169 /* Hit the Global Address Book */
170 if (CtdlDirectoryLookup(aaa, name) == 0) {
174 lprintf(CTDL_INFO, "Mail is being forwarded to %s\n", name);
176 /* Change "user @ xxx" to "user" if xxx is an alias for this host */
177 for (a=0; a<strlen(name); ++a) {
178 if (name[a] == '@') {
179 if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
181 lprintf(CTDL_INFO, "Changed to <%s>\n", name);
186 /* determine local or remote type, see citadel.h */
187 at = haschar(name, '@');
188 if (at == 0) return(MES_LOCAL); /* no @'s - local address */
189 if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
190 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
192 /* figure out the delivery mode */
193 extract_token(node, name, 1, '@');
195 /* If there are one or more dots in the nodename, we assume that it
196 * is an FQDN and will attempt SMTP delivery to the Internet.
198 if (haschar(node, '.') > 0) {
199 return(MES_INTERNET);
202 /* Otherwise we look in the IGnet maps for a valid Citadel node.
203 * Try directly-connected nodes first...
205 ignetcfg = CtdlGetSysConfig(IGNETCFG);
206 for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
207 extract_token(buf, ignetcfg, i, '\n');
208 extract_token(testnode, buf, 0, '|');
209 if (!strcasecmp(node, testnode)) {
217 * Then try nodes that are two or more hops away.
219 ignetmap = CtdlGetSysConfig(IGNETMAP);
220 for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
221 extract_token(buf, ignetmap, i, '\n');
222 extract_token(testnode, buf, 0, '|');
223 if (!strcasecmp(node, testnode)) {
230 /* If we get to this point it's an invalid node name */
239 fp = fopen("citadel.control", "r");
241 lprintf(CTDL_CRIT, "Cannot open citadel.control: %s\n",
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 lprintf(CTDL_DEBUG, "CtdlSetSeen(%ld, %d, %d)\n",
322 target_msgnum, target_setting, which_set);
324 /* Learn about the user and room in question */
325 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
327 /* Load the message list */
328 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
330 msglist = malloc(cdbfr->len);
331 memcpy(msglist, cdbfr->ptr, cdbfr->len);
332 num_msgs = cdbfr->len / sizeof(long);
335 return; /* No messages at all? No further action. */
338 /* Decide which message set we're manipulating */
339 if (which_set == ctdlsetseen_seen) strcpy(vset, vbuf.v_seen);
340 if (which_set == ctdlsetseen_answered) strcpy(vset, vbuf.v_answered);
342 lprintf(CTDL_DEBUG, "before optimize: %s\n", vset);
345 for (i=0; i<num_msgs; ++i) {
348 if (msglist[i] == target_msgnum) {
349 is_seen = target_setting;
352 if (is_msg_in_mset(vset, msglist[i])) {
358 if (lo < 0L) lo = msglist[i];
361 if ( ((is_seen == 0) && (was_seen == 1))
362 || ((is_seen == 1) && (i == num_msgs-1)) ) {
365 if ( (strlen(newseen) + 20) > SIZ) {
366 strcpy(newseen, &newseen[20]);
369 tmp = strlen(newseen);
371 strcat(newseen, ",");
375 snprintf(&newseen[tmp], sizeof newseen - tmp,
379 snprintf(&newseen[tmp], sizeof newseen - tmp,
388 /* Decide which message set we're manipulating */
389 if (which_set == ctdlsetseen_seen) strcpy(vbuf.v_seen, newseen);
390 if (which_set == ctdlsetseen_answered) strcpy(vbuf.v_answered, newseen);
392 lprintf(CTDL_DEBUG, " after optimize: %s\n", newseen);
394 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
399 * API function to perform an operation for each qualifying message in the
400 * current room. (Returns the number of messages processed.)
402 int CtdlForEachMessage(int mode, long ref,
404 struct CtdlMessage *compare,
405 void (*CallBack) (long, void *),
411 struct cdbdata *cdbfr;
412 long *msglist = NULL;
414 int num_processed = 0;
417 struct CtdlMessage *msg;
420 int printed_lastold = 0;
422 /* Learn about the user and room in question */
424 getuser(&CC->user, CC->curr_user);
425 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
427 /* Load the message list */
428 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
430 msglist = malloc(cdbfr->len);
431 memcpy(msglist, cdbfr->ptr, cdbfr->len);
432 num_msgs = cdbfr->len / sizeof(long);
435 return 0; /* No messages at all? No further action. */
440 * Now begin the traversal.
442 if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
444 /* If the caller is looking for a specific MIME type, filter
445 * out all messages which are not of the type requested.
447 if (content_type != NULL) if (strlen(content_type) > 0) {
449 /* This call to GetMetaData() sits inside this loop
450 * so that we only do the extra database read per msg
451 * if we need to. Doing the extra read all the time
452 * really kills the server. If we ever need to use
453 * metadata for another search criterion, we need to
454 * move the read somewhere else -- but still be smart
455 * enough to only do the read if the caller has
456 * specified something that will need it.
458 GetMetaData(&smi, msglist[a]);
460 if (strcasecmp(smi.meta_content_type, content_type)) {
466 num_msgs = sort_msglist(msglist, num_msgs);
468 /* If a template was supplied, filter out the messages which
469 * don't match. (This could induce some delays!)
472 if (compare != NULL) {
473 for (a = 0; a < num_msgs; ++a) {
474 msg = CtdlFetchMessage(msglist[a], 1);
476 if (CtdlMsgCmp(msg, compare)) {
479 CtdlFreeMessage(msg);
487 * Now iterate through the message list, according to the
488 * criteria supplied by the caller.
491 for (a = 0; a < num_msgs; ++a) {
492 thismsg = msglist[a];
493 is_seen = is_msg_in_mset(vbuf.v_seen, thismsg);
494 if (is_seen) lastold = thismsg;
499 || ((mode == MSGS_OLD) && (is_seen))
500 || ((mode == MSGS_NEW) && (!is_seen))
501 || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
502 || ((mode == MSGS_FIRST) && (a < ref))
503 || ((mode == MSGS_GT) && (thismsg > ref))
504 || ((mode == MSGS_EQ) && (thismsg == ref))
507 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
509 CallBack(lastold, userdata);
513 if (CallBack) CallBack(thismsg, userdata);
517 free(msglist); /* Clean up */
518 return num_processed;
524 * cmd_msgs() - get list of message #'s in this room
525 * implements the MSGS server command using CtdlForEachMessage()
527 void cmd_msgs(char *cmdbuf)
536 int with_template = 0;
537 struct CtdlMessage *template = NULL;
539 extract(which, cmdbuf, 0);
540 cm_ref = extract_int(cmdbuf, 1);
541 with_template = extract_int(cmdbuf, 2);
545 if (!strncasecmp(which, "OLD", 3))
547 else if (!strncasecmp(which, "NEW", 3))
549 else if (!strncasecmp(which, "FIRST", 5))
551 else if (!strncasecmp(which, "LAST", 4))
553 else if (!strncasecmp(which, "GT", 2))
556 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
557 cprintf("%d not logged in\n", ERROR + NOT_LOGGED_IN);
563 cprintf("%d Send template then receive message list\n",
565 template = (struct CtdlMessage *)
566 malloc(sizeof(struct CtdlMessage));
567 memset(template, 0, sizeof(struct CtdlMessage));
568 while(client_getln(buf, sizeof buf), strcmp(buf,"000")) {
569 extract(tfield, buf, 0);
570 extract(tvalue, buf, 1);
571 for (i='A'; i<='Z'; ++i) if (msgkeys[i]!=NULL) {
572 if (!strcasecmp(tfield, msgkeys[i])) {
573 template->cm_fields[i] =
581 cprintf("%d Message list...\n", LISTING_FOLLOWS);
584 CtdlForEachMessage(mode, cm_ref,
585 NULL, template, simple_listing, NULL);
586 if (template != NULL) CtdlFreeMessage(template);
594 * help_subst() - support routine for help file viewer
596 void help_subst(char *strbuf, char *source, char *dest)
601 while (p = pattern2(strbuf, source), (p >= 0)) {
602 strcpy(workbuf, &strbuf[p + strlen(source)]);
603 strcpy(&strbuf[p], dest);
604 strcat(strbuf, workbuf);
609 void do_help_subst(char *buffer)
613 help_subst(buffer, "^nodename", config.c_nodename);
614 help_subst(buffer, "^humannode", config.c_humannode);
615 help_subst(buffer, "^fqdn", config.c_fqdn);
616 help_subst(buffer, "^username", CC->user.fullname);
617 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
618 help_subst(buffer, "^usernum", buf2);
619 help_subst(buffer, "^sysadm", config.c_sysadm);
620 help_subst(buffer, "^variantname", CITADEL);
621 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
622 help_subst(buffer, "^maxsessions", buf2);
623 help_subst(buffer, "^bbsdir", BBSDIR);
629 * memfmout() - Citadel text formatter and paginator.
630 * Although the original purpose of this routine was to format
631 * text to the reader's screen width, all we're really using it
632 * for here is to format text out to 80 columns before sending it
633 * to the client. The client software may reformat it again.
636 int width, /* screen width to use */
637 char *mptr, /* where are we going to get our text from? */
638 char subst, /* nonzero if we should do substitutions */
639 char *nl) /* string to terminate lines with */
651 c = 1; /* c is the current pos */
655 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
657 buffer[strlen(buffer) + 1] = 0;
658 buffer[strlen(buffer)] = ch;
661 if (buffer[0] == '^')
662 do_help_subst(buffer);
664 buffer[strlen(buffer) + 1] = 0;
666 strcpy(buffer, &buffer[1]);
674 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
676 if (((old == 13) || (old == 10)) && (isspace(real))) {
684 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
685 cprintf("%s%s", nl, aaa);
694 if ((strlen(aaa) + c) > (width - 5)) {
703 if ((ch == 13) || (ch == 10)) {
704 cprintf("%s%s", aaa, nl);
711 cprintf("%s%s", aaa, nl);
717 * Callback function for mime parser that simply lists the part
719 void list_this_part(char *name, char *filename, char *partnum, char *disp,
720 void *content, char *cbtype, size_t length, char *encoding,
724 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
725 name, filename, partnum, disp, cbtype, (long)length);
729 * Callback function for multipart prefix
731 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
732 void *content, char *cbtype, size_t length, char *encoding,
735 cprintf("pref=%s|%s\n", partnum, cbtype);
739 * Callback function for multipart sufffix
741 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
742 void *content, char *cbtype, size_t length, char *encoding,
745 cprintf("suff=%s|%s\n", partnum, cbtype);
750 * Callback function for mime parser that opens a section for downloading
752 void mime_download(char *name, char *filename, char *partnum, char *disp,
753 void *content, char *cbtype, size_t length, char *encoding,
757 /* Silently go away if there's already a download open... */
758 if (CC->download_fp != NULL)
761 /* ...or if this is not the desired section */
762 if (strcasecmp(CC->download_desired_section, partnum))
765 CC->download_fp = tmpfile();
766 if (CC->download_fp == NULL)
769 fwrite(content, length, 1, CC->download_fp);
770 fflush(CC->download_fp);
771 rewind(CC->download_fp);
773 OpenCmdResult(filename, cbtype);
779 * Load a message from disk into memory.
780 * This is used by CtdlOutputMsg() and other fetch functions.
782 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
783 * using the CtdlMessageFree() function.
785 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
787 struct cdbdata *dmsgtext;
788 struct CtdlMessage *ret = NULL;
792 cit_uint8_t field_header;
794 lprintf(CTDL_DEBUG, "CtdlFetchMessage(%ld, %d)\n", msgnum, with_body);
796 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
797 if (dmsgtext == NULL) {
800 mptr = dmsgtext->ptr;
801 upper_bound = mptr + dmsgtext->len;
803 /* Parse the three bytes that begin EVERY message on disk.
804 * The first is always 0xFF, the on-disk magic number.
805 * The second is the anonymous/public type byte.
806 * The third is the format type byte (vari, fixed, or MIME).
811 "Message %ld appears to be corrupted.\n",
816 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
817 memset(ret, 0, sizeof(struct CtdlMessage));
819 ret->cm_magic = CTDLMESSAGE_MAGIC;
820 ret->cm_anon_type = *mptr++; /* Anon type byte */
821 ret->cm_format_type = *mptr++; /* Format type byte */
824 * The rest is zero or more arbitrary fields. Load them in.
825 * We're done when we encounter either a zero-length field or
826 * have just processed the 'M' (message text) field.
829 if (mptr >= upper_bound) {
832 field_header = *mptr++;
833 ret->cm_fields[field_header] = strdup(mptr);
835 while (*mptr++ != 0); /* advance to next field */
837 } while ((mptr < upper_bound) && (field_header != 'M'));
841 /* Always make sure there's something in the msg text field. If
842 * it's NULL, the message text is most likely stored separately,
843 * so go ahead and fetch that. Failing that, just set a dummy
844 * body so other code doesn't barf.
846 if ( (ret->cm_fields['M'] == NULL) && (with_body) ) {
847 dmsgtext = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
848 if (dmsgtext != NULL) {
849 ret->cm_fields['M'] = strdup(dmsgtext->ptr);
853 if (ret->cm_fields['M'] == NULL) {
854 ret->cm_fields['M'] = strdup("<no text>\n");
857 /* Perform "before read" hooks (aborting if any return nonzero) */
858 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
859 CtdlFreeMessage(ret);
868 * Returns 1 if the supplied pointer points to a valid Citadel message.
869 * If the pointer is NULL or the magic number check fails, returns 0.
871 int is_valid_message(struct CtdlMessage *msg) {
874 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
875 lprintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
883 * 'Destructor' for struct CtdlMessage
885 void CtdlFreeMessage(struct CtdlMessage *msg)
889 if (is_valid_message(msg) == 0) return;
891 for (i = 0; i < 256; ++i)
892 if (msg->cm_fields[i] != NULL) {
893 free(msg->cm_fields[i]);
896 msg->cm_magic = 0; /* just in case */
902 * Pre callback function for multipart/alternative
904 * NOTE: this differs from the standard behavior for a reason. Normally when
905 * displaying multipart/alternative you want to show the _last_ usable
906 * format in the message. Here we show the _first_ one, because it's
907 * usually text/plain. Since this set of functions is designed for text
908 * output to non-MIME-aware clients, this is the desired behavior.
911 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
912 void *content, char *cbtype, size_t length, char *encoding,
917 ma = (struct ma_info *)cbuserdata;
918 lprintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
919 if (!strcasecmp(cbtype, "multipart/alternative")) {
927 * Post callback function for multipart/alternative
929 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
930 void *content, char *cbtype, size_t length, char *encoding,
935 ma = (struct ma_info *)cbuserdata;
936 lprintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
937 if (!strcasecmp(cbtype, "multipart/alternative")) {
945 * Inline callback function for mime parser that wants to display text
947 void fixed_output(char *name, char *filename, char *partnum, char *disp,
948 void *content, char *cbtype, size_t length, char *encoding,
956 ma = (struct ma_info *)cbuserdata;
958 lprintf(CTDL_DEBUG, "fixed_output() type=<%s>\n", cbtype);
961 * If we're in the middle of a multipart/alternative scope and
962 * we've already printed another section, skip this one.
964 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
965 lprintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
970 if ( (!strcasecmp(cbtype, "text/plain"))
971 || (strlen(cbtype)==0) ) {
974 client_write(wptr, length);
975 if (wptr[length-1] != '\n') {
980 else if (!strcasecmp(cbtype, "text/html")) {
981 ptr = html_to_ascii(content, 80, 0);
983 client_write(ptr, wlen);
984 if (ptr[wlen-1] != '\n') {
989 else if (strncasecmp(cbtype, "multipart/", 10)) {
990 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
991 partnum, filename, cbtype, (long)length);
996 * The client is elegant and sophisticated and wants to be choosy about
997 * MIME content types, so figure out which multipart/alternative part
998 * we're going to send.
1000 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
1001 void *content, char *cbtype, size_t length, char *encoding,
1008 ma = (struct ma_info *)cbuserdata;
1010 if (ma->is_ma > 0) {
1011 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1012 extract(buf, CC->preferred_formats, i);
1013 if (!strcasecmp(buf, cbtype)) {
1014 strcpy(ma->chosen_part, partnum);
1021 * Now that we've chosen our preferred part, output it.
1023 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1024 void *content, char *cbtype, size_t length, char *encoding,
1029 int add_newline = 0;
1033 ma = (struct ma_info *)cbuserdata;
1035 /* This is not the MIME part you're looking for... */
1036 if (strcasecmp(partnum, ma->chosen_part)) return;
1038 /* If the content-type of this part is in our preferred formats
1039 * list, we can simply output it verbatim.
1041 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1042 extract(buf, CC->preferred_formats, i);
1043 if (!strcasecmp(buf, cbtype)) {
1044 /* Yeah! Go! W00t!! */
1046 text_content = (char *)content;
1047 if (text_content[length-1] != '\n') {
1051 cprintf("Content-type: %s\n", cbtype);
1052 cprintf("Content-length: %d\n",
1053 (int)(length + add_newline) );
1054 if (strlen(encoding) > 0) {
1055 cprintf("Content-transfer-encoding: %s\n", encoding);
1058 cprintf("Content-transfer-encoding: 7bit\n");
1061 client_write(content, length);
1062 if (add_newline) cprintf("\n");
1067 /* No translations required or possible: output as text/plain */
1068 cprintf("Content-type: text/plain\n\n");
1069 fixed_output(name, filename, partnum, disp, content, cbtype,
1070 length, encoding, cbuserdata);
1075 * Get a message off disk. (returns om_* values found in msgbase.h)
1078 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1079 int mode, /* how would you like that message? */
1080 int headers_only, /* eschew the message body? */
1081 int do_proto, /* do Citadel protocol responses? */
1082 int crlf /* Use CRLF newlines instead of LF? */
1084 struct CtdlMessage *TheMessage = NULL;
1085 int retcode = om_no_such_msg;
1087 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1090 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1091 if (do_proto) cprintf("%d Not logged in.\n",
1092 ERROR + NOT_LOGGED_IN);
1093 return(om_not_logged_in);
1096 /* FIXME: check message id against msglist for this room */
1099 * Fetch the message from disk. If we're in sooper-fast headers
1100 * only mode, request that we don't even bother loading the body
1103 if (headers_only == HEADERS_FAST) {
1104 TheMessage = CtdlFetchMessage(msg_num, 0);
1107 TheMessage = CtdlFetchMessage(msg_num, 1);
1110 if (TheMessage == NULL) {
1111 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1112 ERROR + MESSAGE_NOT_FOUND, msg_num);
1113 return(om_no_such_msg);
1116 retcode = CtdlOutputPreLoadedMsg(
1117 TheMessage, msg_num, mode,
1118 headers_only, do_proto, crlf);
1120 CtdlFreeMessage(TheMessage);
1127 * Get a message off disk. (returns om_* values found in msgbase.h)
1130 int CtdlOutputPreLoadedMsg(
1131 struct CtdlMessage *TheMessage,
1133 int mode, /* how would you like that message? */
1134 int headers_only, /* eschew the message body? */
1135 int do_proto, /* do Citadel protocol responses? */
1136 int crlf /* Use CRLF newlines instead of LF? */
1142 char display_name[SIZ];
1144 char *nl; /* newline string */
1146 int subject_found = 0;
1149 /* buffers needed for RFC822 translation */
1156 char datestamp[SIZ];
1159 lprintf(CTDL_DEBUG, "CtdlOutputPreLoadedMsg(TheMessage=%s, %ld, %d, %d, %d, %d\n",
1160 ((TheMessage == NULL) ? "NULL" : "not null"),
1162 mode, headers_only, do_proto, crlf);
1164 snprintf(mid, sizeof mid, "%ld", msg_num);
1165 nl = (crlf ? "\r\n" : "\n");
1167 if (!is_valid_message(TheMessage)) {
1169 "ERROR: invalid preloaded message for output\n");
1170 return(om_no_such_msg);
1173 /* Are we downloading a MIME component? */
1174 if (mode == MT_DOWNLOAD) {
1175 if (TheMessage->cm_format_type != FMT_RFC822) {
1177 cprintf("%d This is not a MIME message.\n",
1178 ERROR + ILLEGAL_VALUE);
1179 } else if (CC->download_fp != NULL) {
1180 if (do_proto) cprintf(
1181 "%d You already have a download open.\n",
1182 ERROR + RESOURCE_BUSY);
1184 /* Parse the message text component */
1185 mptr = TheMessage->cm_fields['M'];
1186 ma = malloc(sizeof(struct ma_info));
1187 memset(ma, 0, sizeof(struct ma_info));
1188 mime_parser(mptr, NULL, *mime_download, NULL, NULL, (void *)ma, 0);
1190 /* If there's no file open by this time, the requested
1191 * section wasn't found, so print an error
1193 if (CC->download_fp == NULL) {
1194 if (do_proto) cprintf(
1195 "%d Section %s not found.\n",
1196 ERROR + FILE_NOT_FOUND,
1197 CC->download_desired_section);
1200 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1203 /* now for the user-mode message reading loops */
1204 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1206 /* Does the caller want to skip the headers? */
1207 if (headers_only == HEADERS_NONE) goto START_TEXT;
1209 /* Tell the client which format type we're using. */
1210 if ( (mode == MT_CITADEL) && (do_proto) ) {
1211 cprintf("type=%d\n", TheMessage->cm_format_type);
1214 /* nhdr=yes means that we're only displaying headers, no body */
1215 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1216 && (mode == MT_CITADEL)
1219 cprintf("nhdr=yes\n");
1222 /* begin header processing loop for Citadel message format */
1224 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1226 strcpy(display_name, "<unknown>");
1227 if (TheMessage->cm_fields['A']) {
1228 strcpy(buf, TheMessage->cm_fields['A']);
1229 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1230 strcpy(display_name, "****");
1232 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1233 strcpy(display_name, "anonymous");
1236 strcpy(display_name, buf);
1238 if ((is_room_aide())
1239 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1240 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1241 size_t tmp = strlen(display_name);
1242 snprintf(&display_name[tmp],
1243 sizeof display_name - tmp,
1248 /* Don't show Internet address for users on the
1249 * local Citadel network.
1252 if (TheMessage->cm_fields['N'] != NULL)
1253 if (strlen(TheMessage->cm_fields['N']) > 0)
1254 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1258 /* Now spew the header fields in the order we like them. */
1259 strcpy(allkeys, FORDER);
1260 for (i=0; i<strlen(allkeys); ++i) {
1261 k = (int) allkeys[i];
1263 if ( (TheMessage->cm_fields[k] != NULL)
1264 && (msgkeys[k] != NULL) ) {
1266 if (do_proto) cprintf("%s=%s\n",
1270 else if ((k == 'F') && (suppress_f)) {
1273 /* Masquerade display name if needed */
1275 if (do_proto) cprintf("%s=%s\n",
1277 TheMessage->cm_fields[k]
1286 /* begin header processing loop for RFC822 transfer format */
1291 strcpy(snode, NODENAME);
1292 strcpy(lnode, HUMANNODE);
1293 if (mode == MT_RFC822) {
1294 for (i = 0; i < 256; ++i) {
1295 if (TheMessage->cm_fields[i]) {
1296 mptr = TheMessage->cm_fields[i];
1299 safestrncpy(luser, mptr, sizeof luser);
1300 safestrncpy(suser, mptr, sizeof suser);
1302 else if (i == 'U') {
1303 cprintf("Subject: %s%s", mptr, nl);
1307 safestrncpy(mid, mptr, sizeof mid);
1309 safestrncpy(lnode, mptr, sizeof lnode);
1311 safestrncpy(fuser, mptr, sizeof fuser);
1313 cprintf("X-Citadel-Room: %s%s",
1316 safestrncpy(snode, mptr, sizeof snode);
1318 cprintf("To: %s%s", mptr, nl);
1319 else if (i == 'T') {
1320 datestring(datestamp, sizeof datestamp,
1321 atol(mptr), DATESTRING_RFC822);
1322 cprintf("Date: %s%s", datestamp, nl);
1326 if (subject_found == 0) {
1327 cprintf("Subject: (no subject)%s", nl);
1331 for (i=0; i<strlen(suser); ++i) {
1332 suser[i] = tolower(suser[i]);
1333 if (!isalnum(suser[i])) suser[i]='_';
1336 if (mode == MT_RFC822) {
1337 if (!strcasecmp(snode, NODENAME)) {
1338 safestrncpy(snode, FQDN, sizeof snode);
1341 /* Construct a fun message id */
1342 cprintf("Message-ID: <%s", mid);
1343 if (strchr(mid, '@')==NULL) {
1344 cprintf("@%s", snode);
1348 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1349 cprintf("From: x@x.org (----)%s", nl);
1351 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1352 cprintf("From: x@x.org (anonymous)%s", nl);
1354 else if (strlen(fuser) > 0) {
1355 cprintf("From: %s (%s)%s", fuser, luser, nl);
1358 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1361 cprintf("Organization: %s%s", lnode, nl);
1363 /* Blank line signifying RFC822 end-of-headers */
1364 if (TheMessage->cm_format_type != FMT_RFC822) {
1369 /* end header processing loop ... at this point, we're in the text */
1371 if (headers_only == HEADERS_FAST) goto DONE;
1372 mptr = TheMessage->cm_fields['M'];
1374 /* Tell the client about the MIME parts in this message */
1375 if (TheMessage->cm_format_type == FMT_RFC822) {
1376 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1377 mime_parser(mptr, NULL,
1383 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1384 /* FIXME ... we have to put some code in here to avoid
1385 * printing duplicate header information when both
1386 * Citadel and RFC822 headers exist. Preference should
1387 * probably be given to the RFC822 headers.
1389 int done_rfc822_hdrs = 0;
1390 while (ch=*(mptr++), ch!=0) {
1395 if (!done_rfc822_hdrs) {
1396 if (headers_only != HEADERS_NONE) {
1401 if (headers_only != HEADERS_ONLY) {
1405 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1406 done_rfc822_hdrs = 1;
1410 if (done_rfc822_hdrs) {
1411 if (headers_only != HEADERS_NONE) {
1416 if (headers_only != HEADERS_ONLY) {
1420 if ((*mptr == 13) || (*mptr == 10)) {
1421 done_rfc822_hdrs = 1;
1429 if (headers_only == HEADERS_ONLY) {
1433 /* signify start of msg text */
1434 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1435 if (do_proto) cprintf("text\n");
1438 /* If the format type on disk is 1 (fixed-format), then we want
1439 * everything to be output completely literally ... regardless of
1440 * what message transfer format is in use.
1442 if (TheMessage->cm_format_type == FMT_FIXED) {
1443 if (mode == MT_MIME) {
1444 cprintf("Content-type: text/plain\n\n");
1447 while (ch = *mptr++, ch > 0) {
1450 if ((ch == 10) || (strlen(buf) > 250)) {
1451 cprintf("%s%s", buf, nl);
1454 buf[strlen(buf) + 1] = 0;
1455 buf[strlen(buf)] = ch;
1458 if (strlen(buf) > 0)
1459 cprintf("%s%s", buf, nl);
1462 /* If the message on disk is format 0 (Citadel vari-format), we
1463 * output using the formatter at 80 columns. This is the final output
1464 * form if the transfer format is RFC822, but if the transfer format
1465 * is Citadel proprietary, it'll still work, because the indentation
1466 * for new paragraphs is correct and the client will reformat the
1467 * message to the reader's screen width.
1469 if (TheMessage->cm_format_type == FMT_CITADEL) {
1470 if (mode == MT_MIME) {
1471 cprintf("Content-type: text/x-citadel-variformat\n\n");
1473 memfmout(80, mptr, 0, nl);
1476 /* If the message on disk is format 4 (MIME), we've gotta hand it
1477 * off to the MIME parser. The client has already been told that
1478 * this message is format 1 (fixed format), so the callback function
1479 * we use will display those parts as-is.
1481 if (TheMessage->cm_format_type == FMT_RFC822) {
1482 ma = malloc(sizeof(struct ma_info));
1483 memset(ma, 0, sizeof(struct ma_info));
1485 if (mode == MT_MIME) {
1486 strcpy(ma->chosen_part, "1");
1487 mime_parser(mptr, NULL,
1488 *choose_preferred, *fixed_output_pre,
1489 *fixed_output_post, (void *)ma, 0);
1490 mime_parser(mptr, NULL,
1491 *output_preferred, NULL, NULL, (void *)ma, 0);
1494 mime_parser(mptr, NULL,
1495 *fixed_output, *fixed_output_pre,
1496 *fixed_output_post, (void *)ma, 0);
1502 DONE: /* now we're done */
1503 if (do_proto) cprintf("000\n");
1510 * display a message (mode 0 - Citadel proprietary)
1512 void cmd_msg0(char *cmdbuf)
1515 int headers_only = HEADERS_ALL;
1517 msgid = extract_long(cmdbuf, 0);
1518 headers_only = extract_int(cmdbuf, 1);
1520 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1526 * display a message (mode 2 - RFC822)
1528 void cmd_msg2(char *cmdbuf)
1531 int headers_only = HEADERS_ALL;
1533 msgid = extract_long(cmdbuf, 0);
1534 headers_only = extract_int(cmdbuf, 1);
1536 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1542 * display a message (mode 3 - IGnet raw format - internal programs only)
1544 void cmd_msg3(char *cmdbuf)
1547 struct CtdlMessage *msg;
1550 if (CC->internal_pgm == 0) {
1551 cprintf("%d This command is for internal programs only.\n",
1552 ERROR + HIGHER_ACCESS_REQUIRED);
1556 msgnum = extract_long(cmdbuf, 0);
1557 msg = CtdlFetchMessage(msgnum, 1);
1559 cprintf("%d Message %ld not found.\n",
1560 ERROR + MESSAGE_NOT_FOUND, msgnum);
1564 serialize_message(&smr, msg);
1565 CtdlFreeMessage(msg);
1568 cprintf("%d Unable to serialize message\n",
1569 ERROR + INTERNAL_ERROR);
1573 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1574 client_write((char *)smr.ser, (int)smr.len);
1581 * Display a message using MIME content types
1583 void cmd_msg4(char *cmdbuf)
1587 msgid = extract_long(cmdbuf, 0);
1588 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1594 * Client tells us its preferred message format(s)
1596 void cmd_msgp(char *cmdbuf)
1598 safestrncpy(CC->preferred_formats, cmdbuf,
1599 sizeof(CC->preferred_formats));
1600 cprintf("%d ok\n", CIT_OK);
1605 * Open a component of a MIME message as a download file
1607 void cmd_opna(char *cmdbuf)
1610 char desired_section[SIZ];
1612 msgid = extract_long(cmdbuf, 0);
1613 extract(desired_section, cmdbuf, 1);
1614 safestrncpy(CC->download_desired_section, desired_section, sizeof CC->download_desired_section);
1616 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1621 * Save a message pointer into a specified room
1622 * (Returns 0 for success, nonzero for failure)
1623 * roomname may be NULL to use the current room
1625 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1627 char hold_rm[ROOMNAMELEN];
1628 struct cdbdata *cdbfr;
1631 long highest_msg = 0L;
1632 struct CtdlMessage *msg = NULL;
1634 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1635 roomname, msgid, flags);
1637 strcpy(hold_rm, CC->room.QRname);
1639 /* We may need to check to see if this message is real */
1640 if ( (flags & SM_VERIFY_GOODNESS)
1641 || (flags & SM_DO_REPL_CHECK)
1643 msg = CtdlFetchMessage(msgid, 1);
1644 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1647 /* Perform replication checks if necessary */
1648 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1650 if (getroom(&CC->room,
1651 ((roomname != NULL) ? roomname : CC->room.QRname) )
1653 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1654 if (msg != NULL) CtdlFreeMessage(msg);
1655 return(ERROR + ROOM_NOT_FOUND);
1658 if (ReplicationChecks(msg) != 0) {
1659 getroom(&CC->room, hold_rm);
1660 if (msg != NULL) CtdlFreeMessage(msg);
1662 "Did replication, and newer exists\n");
1667 /* Now the regular stuff */
1668 if (lgetroom(&CC->room,
1669 ((roomname != NULL) ? roomname : CC->room.QRname) )
1671 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1672 if (msg != NULL) CtdlFreeMessage(msg);
1673 return(ERROR + ROOM_NOT_FOUND);
1676 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1677 if (cdbfr == NULL) {
1681 msglist = malloc(cdbfr->len);
1682 if (msglist == NULL)
1683 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1684 num_msgs = cdbfr->len / sizeof(long);
1685 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1690 /* Make sure the message doesn't already exist in this room. It
1691 * is absolutely taboo to have more than one reference to the same
1692 * message in a room.
1694 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1695 if (msglist[i] == msgid) {
1696 lputroom(&CC->room); /* unlock the room */
1697 getroom(&CC->room, hold_rm);
1698 if (msg != NULL) CtdlFreeMessage(msg);
1700 return(ERROR + ALREADY_EXISTS);
1704 /* Now add the new message */
1706 msglist = realloc(msglist, (num_msgs * sizeof(long)));
1708 if (msglist == NULL) {
1709 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1711 msglist[num_msgs - 1] = msgid;
1713 /* Sort the message list, so all the msgid's are in order */
1714 num_msgs = sort_msglist(msglist, num_msgs);
1716 /* Determine the highest message number */
1717 highest_msg = msglist[num_msgs - 1];
1719 /* Write it back to disk. */
1720 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
1721 msglist, (int)(num_msgs * sizeof(long)));
1723 /* Free up the memory we used. */
1726 /* Update the highest-message pointer and unlock the room. */
1727 CC->room.QRhighest = highest_msg;
1728 lputroom(&CC->room);
1729 getroom(&CC->room, hold_rm);
1731 /* Bump the reference count for this message. */
1732 if ((flags & SM_DONT_BUMP_REF)==0) {
1733 AdjRefCount(msgid, +1);
1736 /* Return success. */
1737 if (msg != NULL) CtdlFreeMessage(msg);
1744 * Message base operation to save a new message to the message store
1745 * (returns new message number)
1747 * This is the back end for CtdlSubmitMsg() and should not be directly
1748 * called by server-side modules.
1751 long send_message(struct CtdlMessage *msg) {
1759 /* Get a new message number */
1760 newmsgid = get_new_message_number();
1761 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1763 /* Generate an ID if we don't have one already */
1764 if (msg->cm_fields['I']==NULL) {
1765 msg->cm_fields['I'] = strdup(msgidbuf);
1768 /* If the message is big, set its body aside for storage elsewhere */
1769 if (msg->cm_fields['M'] != NULL) {
1770 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1772 holdM = msg->cm_fields['M'];
1773 msg->cm_fields['M'] = NULL;
1777 /* Serialize our data structure for storage in the database */
1778 serialize_message(&smr, msg);
1781 msg->cm_fields['M'] = holdM;
1785 cprintf("%d Unable to serialize message\n",
1786 ERROR + INTERNAL_ERROR);
1790 /* Write our little bundle of joy into the message base */
1791 if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
1792 smr.ser, smr.len) < 0) {
1793 lprintf(CTDL_ERR, "Can't store message\n");
1797 cdb_store(CDB_BIGMSGS,
1807 /* Free the memory we used for the serialized message */
1810 /* Return the *local* message ID to the caller
1811 * (even if we're storing an incoming network message)
1819 * Serialize a struct CtdlMessage into the format used on disk and network.
1821 * This function loads up a "struct ser_ret" (defined in server.h) which
1822 * contains the length of the serialized message and a pointer to the
1823 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1825 void serialize_message(struct ser_ret *ret, /* return values */
1826 struct CtdlMessage *msg) /* unserialized msg */
1830 static char *forder = FORDER;
1832 if (is_valid_message(msg) == 0) return; /* self check */
1835 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1836 ret->len = ret->len +
1837 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1839 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1840 ret->ser = malloc(ret->len);
1841 if (ret->ser == NULL) {
1847 ret->ser[1] = msg->cm_anon_type;
1848 ret->ser[2] = msg->cm_format_type;
1851 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1852 ret->ser[wlen++] = (char)forder[i];
1853 strcpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1854 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1856 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1857 (long)ret->len, (long)wlen);
1865 * Back end for the ReplicationChecks() function
1867 void check_repl(long msgnum, void *userdata) {
1868 lprintf(CTDL_DEBUG, "check_repl() replacing message %ld\n", msgnum);
1869 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1874 * Check to see if any messages already exist which carry the same Exclusive ID
1875 * as this one. If any are found, delete them.
1878 int ReplicationChecks(struct CtdlMessage *msg) {
1879 struct CtdlMessage *template;
1882 /* No exclusive id? Don't do anything. */
1883 if (msg->cm_fields['E'] == NULL) return 0;
1884 if (strlen(msg->cm_fields['E']) == 0) return 0;
1885 lprintf(CTDL_DEBUG, "Exclusive ID: <%s>\n", msg->cm_fields['E']);
1887 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1888 memset(template, 0, sizeof(struct CtdlMessage));
1889 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1891 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1893 CtdlFreeMessage(template);
1894 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1902 * Save a message to disk and submit it into the delivery system.
1904 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1905 struct recptypes *recps, /* recipients (if mail) */
1906 char *force /* force a particular room? */
1909 char hold_rm[ROOMNAMELEN];
1910 char actual_rm[ROOMNAMELEN];
1911 char force_room[ROOMNAMELEN];
1912 char content_type[SIZ]; /* We have to learn this */
1913 char recipient[SIZ];
1916 struct ctdluser userbuf;
1918 struct MetaData smi;
1919 FILE *network_fp = NULL;
1920 static int seqnum = 1;
1921 struct CtdlMessage *imsg = NULL;
1924 char *hold_R, *hold_D;
1926 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1927 if (is_valid_message(msg) == 0) return(-1); /* self check */
1929 /* If this message has no timestamp, we take the liberty of
1930 * giving it one, right now.
1932 if (msg->cm_fields['T'] == NULL) {
1933 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1934 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1935 msg->cm_fields['T'] = strdup(aaa);
1938 /* If this message has no path, we generate one.
1940 if (msg->cm_fields['P'] == NULL) {
1941 lprintf(CTDL_DEBUG, "Generating path\n");
1942 if (msg->cm_fields['A'] != NULL) {
1943 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1944 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1945 if (isspace(msg->cm_fields['P'][a])) {
1946 msg->cm_fields['P'][a] = ' ';
1951 msg->cm_fields['P'] = strdup("unknown");
1955 if (force == NULL) {
1956 strcpy(force_room, "");
1959 strcpy(force_room, force);
1962 /* Learn about what's inside, because it's what's inside that counts */
1963 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1964 if (msg->cm_fields['M'] == NULL) {
1965 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1969 switch (msg->cm_format_type) {
1971 strcpy(content_type, "text/x-citadel-variformat");
1974 strcpy(content_type, "text/plain");
1977 strcpy(content_type, "text/plain");
1978 mptr = bmstrstr(msg->cm_fields['M'],
1979 "Content-type: ", strncasecmp);
1981 safestrncpy(content_type, &mptr[14],
1982 sizeof content_type);
1983 for (a = 0; a < strlen(content_type); ++a) {
1984 if ((content_type[a] == ';')
1985 || (content_type[a] == ' ')
1986 || (content_type[a] == 13)
1987 || (content_type[a] == 10)) {
1988 content_type[a] = 0;
1994 /* Goto the correct room */
1995 lprintf(CTDL_DEBUG, "Selected room %s\n",
1996 (recps) ? CC->room.QRname : SENTITEMS);
1997 strcpy(hold_rm, CC->room.QRname);
1998 strcpy(actual_rm, CC->room.QRname);
1999 if (recps != NULL) {
2000 strcpy(actual_rm, SENTITEMS);
2003 /* If the user is a twit, move to the twit room for posting */
2004 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2005 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2007 if (CC->user.axlevel == 2) {
2008 strcpy(hold_rm, actual_rm);
2009 strcpy(actual_rm, config.c_twitroom);
2013 /* ...or if this message is destined for Aide> then go there. */
2014 if (strlen(force_room) > 0) {
2015 strcpy(actual_rm, force_room);
2018 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2019 if (strcasecmp(actual_rm, CC->room.QRname)) {
2020 getroom(&CC->room, actual_rm);
2024 * If this message has no O (room) field, generate one.
2026 if (msg->cm_fields['O'] == NULL) {
2027 msg->cm_fields['O'] = strdup(CC->room.QRname);
2030 /* Perform "before save" hooks (aborting if any return nonzero) */
2031 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2032 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2034 /* If this message has an Exclusive ID, perform replication checks */
2035 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2036 if (ReplicationChecks(msg) > 0) return(-4);
2038 /* Save it to disk */
2039 lprintf(CTDL_DEBUG, "Saving to disk\n");
2040 newmsgid = send_message(msg);
2041 if (newmsgid <= 0L) return(-5);
2043 /* Write a supplemental message info record. This doesn't have to
2044 * be a critical section because nobody else knows about this message
2047 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2048 memset(&smi, 0, sizeof(struct MetaData));
2049 smi.meta_msgnum = newmsgid;
2050 smi.meta_refcount = 0;
2051 safestrncpy(smi.meta_content_type, content_type, sizeof smi.meta_content_type);
2054 /* Now figure out where to store the pointers */
2055 lprintf(CTDL_DEBUG, "Storing pointers\n");
2057 /* If this is being done by the networker delivering a private
2058 * message, we want to BYPASS saving the sender's copy (because there
2059 * is no local sender; it would otherwise go to the Trashcan).
2061 if ((!CC->internal_pgm) || (recps == NULL)) {
2062 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2063 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2064 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2068 /* For internet mail, drop a copy in the outbound queue room */
2070 if (recps->num_internet > 0) {
2071 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2074 /* If other rooms are specified, drop them there too. */
2076 if (recps->num_room > 0)
2077 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2078 extract(recipient, recps->recp_room, i);
2079 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2080 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2083 /* Bump this user's messages posted counter. */
2084 lprintf(CTDL_DEBUG, "Updating user\n");
2085 lgetuser(&CC->user, CC->curr_user);
2086 CC->user.posted = CC->user.posted + 1;
2087 lputuser(&CC->user);
2089 /* If this is private, local mail, make a copy in the
2090 * recipient's mailbox and bump the reference count.
2093 if (recps->num_local > 0)
2094 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2095 extract(recipient, recps->recp_local, i);
2096 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2098 if (getuser(&userbuf, recipient) == 0) {
2099 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2100 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2101 BumpNewMailCounter(userbuf.usernum);
2104 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2105 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2109 /* Perform "after save" hooks */
2110 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2111 PerformMessageHooks(msg, EVT_AFTERSAVE);
2113 /* For IGnet mail, we have to save a new copy into the spooler for
2114 * each recipient, with the R and D fields set to the recipient and
2115 * destination-node. This has two ugly side effects: all other
2116 * recipients end up being unlisted in this recipient's copy of the
2117 * message, and it has to deliver multiple messages to the same
2118 * node. We'll revisit this again in a year or so when everyone has
2119 * a network spool receiver that can handle the new style messages.
2122 if (recps->num_ignet > 0)
2123 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2124 extract(recipient, recps->recp_ignet, i);
2126 hold_R = msg->cm_fields['R'];
2127 hold_D = msg->cm_fields['D'];
2128 msg->cm_fields['R'] = malloc(SIZ);
2129 msg->cm_fields['D'] = malloc(SIZ);
2130 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2131 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2133 serialize_message(&smr, msg);
2135 snprintf(aaa, sizeof aaa,
2136 "./network/spoolin/netmail.%04lx.%04x.%04x",
2137 (long) getpid(), CC->cs_pid, ++seqnum);
2138 network_fp = fopen(aaa, "wb+");
2139 if (network_fp != NULL) {
2140 fwrite(smr.ser, smr.len, 1, network_fp);
2146 free(msg->cm_fields['R']);
2147 free(msg->cm_fields['D']);
2148 msg->cm_fields['R'] = hold_R;
2149 msg->cm_fields['D'] = hold_D;
2152 /* Go back to the room we started from */
2153 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2154 if (strcasecmp(hold_rm, CC->room.QRname))
2155 getroom(&CC->room, hold_rm);
2157 /* For internet mail, generate delivery instructions.
2158 * Yes, this is recursive. Deal with it. Infinite recursion does
2159 * not happen because the delivery instructions message does not
2160 * contain a recipient.
2163 if (recps->num_internet > 0) {
2164 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2165 instr = malloc(SIZ * 2);
2166 snprintf(instr, SIZ * 2,
2167 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2169 SPOOLMIME, newmsgid, (long)time(NULL),
2170 msg->cm_fields['A'], msg->cm_fields['N']
2173 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2174 size_t tmp = strlen(instr);
2175 extract(recipient, recps->recp_internet, i);
2176 snprintf(&instr[tmp], SIZ * 2 - tmp,
2177 "remote|%s|0||\n", recipient);
2180 imsg = malloc(sizeof(struct CtdlMessage));
2181 memset(imsg, 0, sizeof(struct CtdlMessage));
2182 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2183 imsg->cm_anon_type = MES_NORMAL;
2184 imsg->cm_format_type = FMT_RFC822;
2185 imsg->cm_fields['A'] = strdup("Citadel");
2186 imsg->cm_fields['M'] = instr;
2187 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2188 CtdlFreeMessage(imsg);
2197 * Convenience function for generating small administrative messages.
2199 void quickie_message(char *from, char *to, char *room, char *text,
2200 int format_type, char *subject)
2202 struct CtdlMessage *msg;
2203 struct recptypes *recp = NULL;
2205 msg = malloc(sizeof(struct CtdlMessage));
2206 memset(msg, 0, sizeof(struct CtdlMessage));
2207 msg->cm_magic = CTDLMESSAGE_MAGIC;
2208 msg->cm_anon_type = MES_NORMAL;
2209 msg->cm_format_type = format_type;
2210 msg->cm_fields['A'] = strdup(from);
2211 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2212 msg->cm_fields['N'] = strdup(NODENAME);
2214 msg->cm_fields['R'] = strdup(to);
2215 recp = validate_recipients(to);
2217 if (subject != NULL) {
2218 msg->cm_fields['U'] = strdup(subject);
2220 msg->cm_fields['M'] = strdup(text);
2222 CtdlSubmitMsg(msg, recp, room);
2223 CtdlFreeMessage(msg);
2224 if (recp != NULL) free(recp);
2230 * Back end function used by CtdlMakeMessage() and similar functions
2232 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2233 size_t maxlen, /* maximum message length */
2234 char *exist, /* if non-null, append to it;
2235 exist is ALWAYS freed */
2236 int crlf /* CRLF newlines instead of LF */
2240 size_t message_len = 0;
2241 size_t buffer_len = 0;
2247 if (exist == NULL) {
2254 message_len = strlen(exist);
2255 buffer_len = message_len + 4096;
2256 m = realloc(exist, buffer_len);
2263 /* flush the input if we have nowhere to store it */
2268 /* read in the lines of message text one by one */
2270 if (client_getln(buf, sizeof buf) < 1) finished = 1;
2271 if (!strcmp(buf, terminator)) finished = 1;
2273 strcat(buf, "\r\n");
2279 if ( (!flushing) && (!finished) ) {
2280 /* Measure the line */
2281 linelen = strlen(buf);
2283 /* augment the buffer if we have to */
2284 if ((message_len + linelen) >= buffer_len) {
2285 ptr = realloc(m, (buffer_len * 2) );
2286 if (ptr == NULL) { /* flush if can't allocate */
2289 buffer_len = (buffer_len * 2);
2291 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2295 /* Add the new line to the buffer. NOTE: this loop must avoid
2296 * using functions like strcat() and strlen() because they
2297 * traverse the entire buffer upon every call, and doing that
2298 * for a multi-megabyte message slows it down beyond usability.
2300 strcpy(&m[message_len], buf);
2301 message_len += linelen;
2304 /* if we've hit the max msg length, flush the rest */
2305 if (message_len >= maxlen) flushing = 1;
2307 } while (!finished);
2315 * Build a binary message to be saved on disk.
2316 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2317 * will become part of the message. This means you are no longer
2318 * responsible for managing that memory -- it will be freed along with
2319 * the rest of the fields when CtdlFreeMessage() is called.)
2322 struct CtdlMessage *CtdlMakeMessage(
2323 struct ctdluser *author, /* author's user structure */
2324 char *recipient, /* NULL if it's not mail */
2325 char *room, /* room where it's going */
2326 int type, /* see MES_ types in header file */
2327 int format_type, /* variformat, plain text, MIME... */
2328 char *fake_name, /* who we're masquerading as */
2329 char *subject, /* Subject (optional) */
2330 char *preformatted_text /* ...or NULL to read text from client */
2332 char dest_node[SIZ];
2334 struct CtdlMessage *msg;
2336 msg = malloc(sizeof(struct CtdlMessage));
2337 memset(msg, 0, sizeof(struct CtdlMessage));
2338 msg->cm_magic = CTDLMESSAGE_MAGIC;
2339 msg->cm_anon_type = type;
2340 msg->cm_format_type = format_type;
2342 /* Don't confuse the poor folks if it's not routed mail. */
2343 strcpy(dest_node, "");
2347 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2348 msg->cm_fields['P'] = strdup(buf);
2350 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2351 msg->cm_fields['T'] = strdup(buf);
2353 if (fake_name[0]) /* author */
2354 msg->cm_fields['A'] = strdup(fake_name);
2356 msg->cm_fields['A'] = strdup(author->fullname);
2358 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2359 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2362 msg->cm_fields['O'] = strdup(CC->room.QRname);
2365 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2366 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2368 if (recipient[0] != 0) {
2369 msg->cm_fields['R'] = strdup(recipient);
2371 if (dest_node[0] != 0) {
2372 msg->cm_fields['D'] = strdup(dest_node);
2375 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2376 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2379 if (subject != NULL) {
2381 if (strlen(subject) > 0) {
2382 msg->cm_fields['U'] = strdup(subject);
2386 if (preformatted_text != NULL) {
2387 msg->cm_fields['M'] = preformatted_text;
2390 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2391 config.c_maxmsglen, NULL, 0);
2399 * Check to see whether we have permission to post a message in the current
2400 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2401 * returns 0 on success.
2403 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2405 if (!(CC->logged_in)) {
2406 snprintf(errmsgbuf, n, "Not logged in.");
2407 return (ERROR + NOT_LOGGED_IN);
2410 if ((CC->user.axlevel < 2)
2411 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2412 snprintf(errmsgbuf, n, "Need to be validated to enter "
2413 "(except in %s> to sysop)", MAILROOM);
2414 return (ERROR + HIGHER_ACCESS_REQUIRED);
2417 if ((CC->user.axlevel < 4)
2418 && (CC->room.QRflags & QR_NETWORK)) {
2419 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2420 return (ERROR + HIGHER_ACCESS_REQUIRED);
2423 if ((CC->user.axlevel < 6)
2424 && (CC->room.QRflags & QR_READONLY)) {
2425 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2426 return (ERROR + HIGHER_ACCESS_REQUIRED);
2429 strcpy(errmsgbuf, "Ok");
2435 * Check to see if the specified user has Internet mail permission
2436 * (returns nonzero if permission is granted)
2438 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2440 /* Do not allow twits to send Internet mail */
2441 if (who->axlevel <= 2) return(0);
2443 /* Globally enabled? */
2444 if (config.c_restrict == 0) return(1);
2446 /* User flagged ok? */
2447 if (who->flags & US_INTERNET) return(2);
2449 /* Aide level access? */
2450 if (who->axlevel >= 6) return(3);
2452 /* No mail for you! */
2459 * Validate recipients, count delivery types and errors, and handle aliasing
2460 * FIXME check for dupes!!!!!
2462 struct recptypes *validate_recipients(char *recipients) {
2463 struct recptypes *ret;
2464 char this_recp[SIZ];
2465 char this_recp_cooked[SIZ];
2471 struct ctdluser tempUS;
2472 struct ctdlroom tempQR;
2475 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2476 if (ret == NULL) return(NULL);
2477 memset(ret, 0, sizeof(struct recptypes));
2480 ret->num_internet = 0;
2485 if (recipients == NULL) {
2488 else if (strlen(recipients) == 0) {
2492 /* Change all valid separator characters to commas */
2493 for (i=0; i<strlen(recipients); ++i) {
2494 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2495 recipients[i] = ',';
2500 num_recps = num_tokens(recipients, ',');
2503 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2504 extract_token(this_recp, recipients, i, ',');
2506 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2507 mailtype = alias(this_recp);
2508 mailtype = alias(this_recp);
2509 mailtype = alias(this_recp);
2510 for (j=0; j<=strlen(this_recp); ++j) {
2511 if (this_recp[j]=='_') {
2512 this_recp_cooked[j] = ' ';
2515 this_recp_cooked[j] = this_recp[j];
2521 if (!strcasecmp(this_recp, "sysop")) {
2523 strcpy(this_recp, config.c_aideroom);
2524 if (strlen(ret->recp_room) > 0) {
2525 strcat(ret->recp_room, "|");
2527 strcat(ret->recp_room, this_recp);
2529 else if (getuser(&tempUS, this_recp) == 0) {
2531 strcpy(this_recp, tempUS.fullname);
2532 if (strlen(ret->recp_local) > 0) {
2533 strcat(ret->recp_local, "|");
2535 strcat(ret->recp_local, this_recp);
2537 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2539 strcpy(this_recp, tempUS.fullname);
2540 if (strlen(ret->recp_local) > 0) {
2541 strcat(ret->recp_local, "|");
2543 strcat(ret->recp_local, this_recp);
2545 else if ( (!strncasecmp(this_recp, "room_", 5))
2546 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2548 if (strlen(ret->recp_room) > 0) {
2549 strcat(ret->recp_room, "|");
2551 strcat(ret->recp_room, &this_recp_cooked[5]);
2559 /* Yes, you're reading this correctly: if the target
2560 * domain points back to the local system or an attached
2561 * Citadel directory, the address is invalid. That's
2562 * because if the address were valid, we would have
2563 * already translated it to a local address by now.
2565 if (IsDirectory(this_recp)) {
2570 ++ret->num_internet;
2571 if (strlen(ret->recp_internet) > 0) {
2572 strcat(ret->recp_internet, "|");
2574 strcat(ret->recp_internet, this_recp);
2579 if (strlen(ret->recp_ignet) > 0) {
2580 strcat(ret->recp_ignet, "|");
2582 strcat(ret->recp_ignet, this_recp);
2590 if (strlen(ret->errormsg) == 0) {
2591 snprintf(append, sizeof append,
2592 "Invalid recipient: %s",
2596 snprintf(append, sizeof append,
2599 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2600 strcat(ret->errormsg, append);
2604 if (strlen(ret->display_recp) == 0) {
2605 strcpy(append, this_recp);
2608 snprintf(append, sizeof append, ", %s",
2611 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2612 strcat(ret->display_recp, append);
2617 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2618 ret->num_room + ret->num_error) == 0) {
2620 strcpy(ret->errormsg, "No recipients specified.");
2623 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2624 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2625 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2626 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2627 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2628 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2636 * message entry - mode 0 (normal)
2638 void cmd_ent0(char *entargs)
2642 char masquerade_as[SIZ];
2644 int format_type = 0;
2645 char newusername[SIZ];
2646 struct CtdlMessage *msg;
2650 struct recptypes *valid = NULL;
2657 post = extract_int(entargs, 0);
2658 extract(recp, entargs, 1);
2659 anon_flag = extract_int(entargs, 2);
2660 format_type = extract_int(entargs, 3);
2661 extract(subject, entargs, 4);
2662 do_confirm = extract_int(entargs, 6);
2664 /* first check to make sure the request is valid. */
2666 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2668 cprintf("%d %s\n", err, errmsg);
2672 /* Check some other permission type things. */
2675 if (CC->user.axlevel < 6) {
2676 cprintf("%d You don't have permission to masquerade.\n",
2677 ERROR + HIGHER_ACCESS_REQUIRED);
2680 extract(newusername, entargs, 5);
2681 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2682 safestrncpy(CC->fake_postname, newusername,
2683 sizeof(CC->fake_postname) );
2684 cprintf("%d ok\n", CIT_OK);
2687 CC->cs_flags |= CS_POSTING;
2689 /* In the Mail> room we have to behave a little differently --
2690 * make sure the user has specified at least one recipient. Then
2691 * validate the recipient(s).
2693 if ( (CC->room.QRflags & QR_MAILBOX)
2694 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2696 if (CC->user.axlevel < 2) {
2697 strcpy(recp, "sysop");
2700 valid = validate_recipients(recp);
2701 if (valid->num_error > 0) {
2703 ERROR + NO_SUCH_USER, valid->errormsg);
2707 if (valid->num_internet > 0) {
2708 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2709 cprintf("%d You do not have permission "
2710 "to send Internet mail.\n",
2711 ERROR + HIGHER_ACCESS_REQUIRED);
2717 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2718 && (CC->user.axlevel < 4) ) {
2719 cprintf("%d Higher access required for network mail.\n",
2720 ERROR + HIGHER_ACCESS_REQUIRED);
2725 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2726 && ((CC->user.flags & US_INTERNET) == 0)
2727 && (!CC->internal_pgm)) {
2728 cprintf("%d You don't have access to Internet mail.\n",
2729 ERROR + HIGHER_ACCESS_REQUIRED);
2736 /* Is this a room which has anonymous-only or anonymous-option? */
2737 anonymous = MES_NORMAL;
2738 if (CC->room.QRflags & QR_ANONONLY) {
2739 anonymous = MES_ANONONLY;
2741 if (CC->room.QRflags & QR_ANONOPT) {
2742 if (anon_flag == 1) { /* only if the user requested it */
2743 anonymous = MES_ANONOPT;
2747 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2751 /* If we're only checking the validity of the request, return
2752 * success without creating the message.
2755 cprintf("%d %s\n", CIT_OK,
2756 ((valid != NULL) ? valid->display_recp : "") );
2761 /* Handle author masquerading */
2762 if (CC->fake_postname[0]) {
2763 strcpy(masquerade_as, CC->fake_postname);
2765 else if (CC->fake_username[0]) {
2766 strcpy(masquerade_as, CC->fake_username);
2769 strcpy(masquerade_as, "");
2772 /* Read in the message from the client. */
2774 cprintf("%d send message\n", START_CHAT_MODE);
2776 cprintf("%d send message\n", SEND_LISTING);
2778 msg = CtdlMakeMessage(&CC->user, recp,
2779 CC->room.QRname, anonymous, format_type,
2780 masquerade_as, subject, NULL);
2783 msgnum = CtdlSubmitMsg(msg, valid, "");
2786 cprintf("%ld\n", msgnum);
2788 cprintf("Message accepted.\n");
2791 cprintf("Internal error.\n");
2793 if (msg->cm_fields['E'] != NULL) {
2794 cprintf("%s\n", msg->cm_fields['E']);
2801 CtdlFreeMessage(msg);
2803 CC->fake_postname[0] = '\0';
2811 * API function to delete messages which match a set of criteria
2812 * (returns the actual number of messages deleted)
2814 int CtdlDeleteMessages(char *room_name, /* which room */
2815 long dmsgnum, /* or "0" for any */
2816 char *content_type /* or "" for any */
2820 struct ctdlroom qrbuf;
2821 struct cdbdata *cdbfr;
2822 long *msglist = NULL;
2823 long *dellist = NULL;
2826 int num_deleted = 0;
2828 struct MetaData smi;
2830 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2831 room_name, dmsgnum, content_type);
2833 /* get room record, obtaining a lock... */
2834 if (lgetroom(&qrbuf, room_name) != 0) {
2835 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2837 return (0); /* room not found */
2839 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2841 if (cdbfr != NULL) {
2842 msglist = malloc(cdbfr->len);
2843 dellist = malloc(cdbfr->len);
2844 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2845 num_msgs = cdbfr->len / sizeof(long);
2849 for (i = 0; i < num_msgs; ++i) {
2852 /* Set/clear a bit for each criterion */
2854 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2855 delete_this |= 0x01;
2857 if (strlen(content_type) == 0) {
2858 delete_this |= 0x02;
2860 GetMetaData(&smi, msglist[i]);
2861 if (!strcasecmp(smi.meta_content_type,
2863 delete_this |= 0x02;
2867 /* Delete message only if all bits are set */
2868 if (delete_this == 0x03) {
2869 dellist[num_deleted++] = msglist[i];
2874 num_msgs = sort_msglist(msglist, num_msgs);
2875 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
2876 msglist, (int)(num_msgs * sizeof(long)));
2878 qrbuf.QRhighest = msglist[num_msgs - 1];
2882 /* Go through the messages we pulled out of the index, and decrement
2883 * their reference counts by 1. If this is the only room the message
2884 * was in, the reference count will reach zero and the message will
2885 * automatically be deleted from the database. We do this in a
2886 * separate pass because there might be plug-in hooks getting called,
2887 * and we don't want that happening during an S_ROOMS critical
2890 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2891 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2892 AdjRefCount(dellist[i], -1);
2895 /* Now free the memory we used, and go away. */
2896 if (msglist != NULL) free(msglist);
2897 if (dellist != NULL) free(dellist);
2898 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2899 return (num_deleted);
2905 * Check whether the current user has permission to delete messages from
2906 * the current room (returns 1 for yes, 0 for no)
2908 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2909 getuser(&CC->user, CC->curr_user);
2910 if ((CC->user.axlevel < 6)
2911 && (CC->user.usernum != CC->room.QRroomaide)
2912 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2913 && (!(CC->internal_pgm))) {
2922 * Delete message from current room
2924 void cmd_dele(char *delstr)
2929 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2930 cprintf("%d Higher access required.\n",
2931 ERROR + HIGHER_ACCESS_REQUIRED);
2934 delnum = extract_long(delstr, 0);
2936 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2939 cprintf("%d %d message%s deleted.\n", CIT_OK,
2940 num_deleted, ((num_deleted != 1) ? "s" : ""));
2942 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2948 * Back end API function for moves and deletes
2950 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2953 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2954 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2955 if (err != 0) return(err);
2963 * move or copy a message to another room
2965 void cmd_move(char *args)
2969 struct ctdlroom qtemp;
2975 num = extract_long(args, 0);
2976 extract(targ, args, 1);
2977 targ[ROOMNAMELEN - 1] = 0;
2978 is_copy = extract_int(args, 2);
2980 if (getroom(&qtemp, targ) != 0) {
2981 cprintf("%d '%s' does not exist.\n",
2982 ERROR + ROOM_NOT_FOUND, targ);
2986 getuser(&CC->user, CC->curr_user);
2987 CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
2989 /* Check for permission to perform this operation.
2990 * Remember: "CC->room" is source, "qtemp" is target.
2994 /* Aides can move/copy */
2995 if (CC->user.axlevel >= 6) permit = 1;
2997 /* Room aides can move/copy */
2998 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
3000 /* Permit move/copy from personal rooms */
3001 if ((CC->room.QRflags & QR_MAILBOX)
3002 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3004 /* Permit only copy from public to personal room */
3006 && (!(CC->room.QRflags & QR_MAILBOX))
3007 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3009 /* User must have access to target room */
3010 if (!(ra & UA_KNOWN)) permit = 0;
3013 cprintf("%d Higher access required.\n",
3014 ERROR + HIGHER_ACCESS_REQUIRED);
3018 err = CtdlCopyMsgToRoom(num, targ);
3020 cprintf("%d Cannot store message in %s: error %d\n",
3025 /* Now delete the message from the source room,
3026 * if this is a 'move' rather than a 'copy' operation.
3029 CtdlDeleteMessages(CC->room.QRname, num, "");
3032 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3038 * GetMetaData() - Get the supplementary record for a message
3040 void GetMetaData(struct MetaData *smibuf, long msgnum)
3043 struct cdbdata *cdbsmi;
3046 memset(smibuf, 0, sizeof(struct MetaData));
3047 smibuf->meta_msgnum = msgnum;
3048 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3050 /* Use the negative of the message number for its supp record index */
3051 TheIndex = (0L - msgnum);
3053 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3054 if (cdbsmi == NULL) {
3055 return; /* record not found; go with defaults */
3057 memcpy(smibuf, cdbsmi->ptr,
3058 ((cdbsmi->len > sizeof(struct MetaData)) ?
3059 sizeof(struct MetaData) : cdbsmi->len));
3066 * PutMetaData() - (re)write supplementary record for a message
3068 void PutMetaData(struct MetaData *smibuf)
3072 /* Use the negative of the message number for the metadata db index */
3073 TheIndex = (0L - smibuf->meta_msgnum);
3075 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3076 smibuf->meta_msgnum, smibuf->meta_refcount);
3078 cdb_store(CDB_MSGMAIN,
3079 &TheIndex, (int)sizeof(long),
3080 smibuf, (int)sizeof(struct MetaData));
3085 * AdjRefCount - change the reference count for a message;
3086 * delete the message if it reaches zero
3088 void AdjRefCount(long msgnum, int incr)
3091 struct MetaData smi;
3094 /* This is a *tight* critical section; please keep it that way, as
3095 * it may get called while nested in other critical sections.
3096 * Complicating this any further will surely cause deadlock!
3098 begin_critical_section(S_SUPPMSGMAIN);
3099 GetMetaData(&smi, msgnum);
3100 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3101 msgnum, smi.meta_refcount);
3102 smi.meta_refcount += incr;
3104 end_critical_section(S_SUPPMSGMAIN);
3105 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3106 msgnum, smi.meta_refcount);
3108 /* If the reference count is now zero, delete the message
3109 * (and its supplementary record as well).
3111 if (smi.meta_refcount == 0) {
3112 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3114 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3115 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
3117 /* We have to delete the metadata record too! */
3118 delnum = (0L - msgnum);
3119 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3124 * Write a generic object to this room
3126 * Note: this could be much more efficient. Right now we use two temporary
3127 * files, and still pull the message into memory as with all others.
3129 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3130 char *content_type, /* MIME type of this object */
3131 char *tempfilename, /* Where to fetch it from */
3132 struct ctdluser *is_mailbox, /* Mailbox room? */
3133 int is_binary, /* Is encoding necessary? */
3134 int is_unique, /* Del others of this type? */
3135 unsigned int flags /* Internal save flags */
3140 struct ctdlroom qrbuf;
3141 char roomname[ROOMNAMELEN];
3142 struct CtdlMessage *msg;
3144 char *raw_message = NULL;
3145 char *encoded_message = NULL;
3146 off_t raw_length = 0;
3148 if (is_mailbox != NULL)
3149 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3151 safestrncpy(roomname, req_room, sizeof(roomname));
3152 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3155 fp = fopen(tempfilename, "rb");
3157 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3158 tempfilename, strerror(errno));
3161 fseek(fp, 0L, SEEK_END);
3162 raw_length = ftell(fp);
3164 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3166 raw_message = malloc((size_t)raw_length + 2);
3167 fread(raw_message, (size_t)raw_length, 1, fp);
3171 encoded_message = malloc((size_t)
3172 (((raw_length * 134) / 100) + 4096 ) );
3175 encoded_message = malloc((size_t)(raw_length + 4096));
3178 sprintf(encoded_message, "Content-type: %s\n", content_type);
3181 sprintf(&encoded_message[strlen(encoded_message)],
3182 "Content-transfer-encoding: base64\n\n"
3186 sprintf(&encoded_message[strlen(encoded_message)],
3187 "Content-transfer-encoding: 7bit\n\n"
3193 &encoded_message[strlen(encoded_message)],
3199 raw_message[raw_length] = 0;
3201 &encoded_message[strlen(encoded_message)],
3209 lprintf(CTDL_DEBUG, "Allocating\n");
3210 msg = malloc(sizeof(struct CtdlMessage));
3211 memset(msg, 0, sizeof(struct CtdlMessage));
3212 msg->cm_magic = CTDLMESSAGE_MAGIC;
3213 msg->cm_anon_type = MES_NORMAL;
3214 msg->cm_format_type = 4;
3215 msg->cm_fields['A'] = strdup(CC->user.fullname);
3216 msg->cm_fields['O'] = strdup(req_room);
3217 msg->cm_fields['N'] = strdup(config.c_nodename);
3218 msg->cm_fields['H'] = strdup(config.c_humannode);
3219 msg->cm_flags = flags;
3221 msg->cm_fields['M'] = encoded_message;
3223 /* Create the requested room if we have to. */
3224 if (getroom(&qrbuf, roomname) != 0) {
3225 create_room(roomname,
3226 ( (is_mailbox != NULL) ? 5 : 3 ),
3227 "", 0, 1, 0, VIEW_BBS);
3229 /* If the caller specified this object as unique, delete all
3230 * other objects of this type that are currently in the room.
3233 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3234 CtdlDeleteMessages(roomname, 0L, content_type));
3236 /* Now write the data */
3237 CtdlSubmitMsg(msg, NULL, roomname);
3238 CtdlFreeMessage(msg);
3246 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3247 config_msgnum = msgnum;
3251 char *CtdlGetSysConfig(char *sysconfname) {
3252 char hold_rm[ROOMNAMELEN];
3255 struct CtdlMessage *msg;
3258 strcpy(hold_rm, CC->room.QRname);
3259 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3260 getroom(&CC->room, hold_rm);
3265 /* We want the last (and probably only) config in this room */
3266 begin_critical_section(S_CONFIG);
3267 config_msgnum = (-1L);
3268 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3269 CtdlGetSysConfigBackend, NULL);
3270 msgnum = config_msgnum;
3271 end_critical_section(S_CONFIG);
3277 msg = CtdlFetchMessage(msgnum, 1);
3279 conf = strdup(msg->cm_fields['M']);
3280 CtdlFreeMessage(msg);
3287 getroom(&CC->room, hold_rm);
3289 if (conf != NULL) do {
3290 extract_token(buf, conf, 0, '\n');
3291 strcpy(conf, &conf[strlen(buf)+1]);
3292 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3297 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3298 char temp[PATH_MAX];
3301 strcpy(temp, tmpnam(NULL));
3303 fp = fopen(temp, "w");
3304 if (fp == NULL) return;
3305 fprintf(fp, "%s", sysconfdata);
3308 /* this handy API function does all the work for us */
3309 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3315 * Determine whether a given Internet address belongs to the current user
3317 int CtdlIsMe(char *addr) {
3318 struct recptypes *recp;
3321 recp = validate_recipients(addr);
3322 if (recp == NULL) return(0);
3324 if (recp->num_local == 0) {
3329 for (i=0; i<recp->num_local; ++i) {
3330 extract(addr, recp->recp_local, i);
3331 if (!strcasecmp(addr, CC->user.fullname)) {
3343 * Citadel protocol command to do the same
3345 void cmd_isme(char *argbuf) {
3348 if (CtdlAccessCheck(ac_logged_in)) return;
3349 extract(addr, argbuf, 0);
3351 if (CtdlIsMe(addr)) {
3352 cprintf("%d %s\n", CIT_OK, addr);
3355 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);