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;
791 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;
802 /* Parse the three bytes that begin EVERY message on disk.
803 * The first is always 0xFF, the on-disk magic number.
804 * The second is the anonymous/public type byte.
805 * The third is the format type byte (vari, fixed, or MIME).
810 "Message %ld appears to be corrupted.\n",
815 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
816 memset(ret, 0, sizeof(struct CtdlMessage));
818 ret->cm_magic = CTDLMESSAGE_MAGIC;
819 ret->cm_anon_type = *mptr++; /* Anon type byte */
820 ret->cm_format_type = *mptr++; /* Format type byte */
823 * The rest is zero or more arbitrary fields. Load them in.
824 * We're done when we encounter either a zero-length field or
825 * have just processed the 'M' (message text) field.
828 field_length = strlen(mptr);
829 if (field_length == 0)
831 field_header = *mptr++;
832 ret->cm_fields[field_header] = malloc(field_length + 1);
833 strcpy(ret->cm_fields[field_header], mptr);
835 while (*mptr++ != 0); /* advance to next field */
837 } while ((field_length > 0) && (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) {
1483 if (mode == MT_MIME) {
1484 ma = malloc(sizeof(struct ma_info));
1485 memset(ma, 0, sizeof(struct ma_info));
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);
1495 mime_parser(mptr, NULL,
1496 *fixed_output, *fixed_output_pre,
1497 *fixed_output_post, NULL, 0);
1501 DONE: /* now we're done */
1502 if (do_proto) cprintf("000\n");
1509 * display a message (mode 0 - Citadel proprietary)
1511 void cmd_msg0(char *cmdbuf)
1514 int headers_only = HEADERS_ALL;
1516 msgid = extract_long(cmdbuf, 0);
1517 headers_only = extract_int(cmdbuf, 1);
1519 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1525 * display a message (mode 2 - RFC822)
1527 void cmd_msg2(char *cmdbuf)
1530 int headers_only = HEADERS_ALL;
1532 msgid = extract_long(cmdbuf, 0);
1533 headers_only = extract_int(cmdbuf, 1);
1535 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1541 * display a message (mode 3 - IGnet raw format - internal programs only)
1543 void cmd_msg3(char *cmdbuf)
1546 struct CtdlMessage *msg;
1549 if (CC->internal_pgm == 0) {
1550 cprintf("%d This command is for internal programs only.\n",
1551 ERROR + HIGHER_ACCESS_REQUIRED);
1555 msgnum = extract_long(cmdbuf, 0);
1556 msg = CtdlFetchMessage(msgnum, 1);
1558 cprintf("%d Message %ld not found.\n",
1559 ERROR + MESSAGE_NOT_FOUND, msgnum);
1563 serialize_message(&smr, msg);
1564 CtdlFreeMessage(msg);
1567 cprintf("%d Unable to serialize message\n",
1568 ERROR + INTERNAL_ERROR);
1572 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1573 client_write((char *)smr.ser, (int)smr.len);
1580 * Display a message using MIME content types
1582 void cmd_msg4(char *cmdbuf)
1586 msgid = extract_long(cmdbuf, 0);
1587 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1593 * Client tells us its preferred message format(s)
1595 void cmd_msgp(char *cmdbuf)
1597 safestrncpy(CC->preferred_formats, cmdbuf,
1598 sizeof(CC->preferred_formats));
1599 cprintf("%d ok\n", CIT_OK);
1604 * Open a component of a MIME message as a download file
1606 void cmd_opna(char *cmdbuf)
1609 char desired_section[SIZ];
1611 msgid = extract_long(cmdbuf, 0);
1612 extract(desired_section, cmdbuf, 1);
1613 safestrncpy(CC->download_desired_section, desired_section, sizeof CC->download_desired_section);
1615 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1620 * Save a message pointer into a specified room
1621 * (Returns 0 for success, nonzero for failure)
1622 * roomname may be NULL to use the current room
1624 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1626 char hold_rm[ROOMNAMELEN];
1627 struct cdbdata *cdbfr;
1630 long highest_msg = 0L;
1631 struct CtdlMessage *msg = NULL;
1633 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1634 roomname, msgid, flags);
1636 strcpy(hold_rm, CC->room.QRname);
1638 /* We may need to check to see if this message is real */
1639 if ( (flags & SM_VERIFY_GOODNESS)
1640 || (flags & SM_DO_REPL_CHECK)
1642 msg = CtdlFetchMessage(msgid, 1);
1643 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1646 /* Perform replication checks if necessary */
1647 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1649 if (getroom(&CC->room,
1650 ((roomname != NULL) ? roomname : CC->room.QRname) )
1652 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1653 if (msg != NULL) CtdlFreeMessage(msg);
1654 return(ERROR + ROOM_NOT_FOUND);
1657 if (ReplicationChecks(msg) != 0) {
1658 getroom(&CC->room, hold_rm);
1659 if (msg != NULL) CtdlFreeMessage(msg);
1661 "Did replication, and newer exists\n");
1666 /* Now the regular stuff */
1667 if (lgetroom(&CC->room,
1668 ((roomname != NULL) ? roomname : CC->room.QRname) )
1670 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1671 if (msg != NULL) CtdlFreeMessage(msg);
1672 return(ERROR + ROOM_NOT_FOUND);
1675 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1676 if (cdbfr == NULL) {
1680 msglist = malloc(cdbfr->len);
1681 if (msglist == NULL)
1682 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1683 num_msgs = cdbfr->len / sizeof(long);
1684 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1689 /* Make sure the message doesn't already exist in this room. It
1690 * is absolutely taboo to have more than one reference to the same
1691 * message in a room.
1693 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1694 if (msglist[i] == msgid) {
1695 lputroom(&CC->room); /* unlock the room */
1696 getroom(&CC->room, hold_rm);
1697 if (msg != NULL) CtdlFreeMessage(msg);
1699 return(ERROR + ALREADY_EXISTS);
1703 /* Now add the new message */
1705 msglist = realloc(msglist, (num_msgs * sizeof(long)));
1707 if (msglist == NULL) {
1708 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1710 msglist[num_msgs - 1] = msgid;
1712 /* Sort the message list, so all the msgid's are in order */
1713 num_msgs = sort_msglist(msglist, num_msgs);
1715 /* Determine the highest message number */
1716 highest_msg = msglist[num_msgs - 1];
1718 /* Write it back to disk. */
1719 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, (int)sizeof(long),
1720 msglist, (int)(num_msgs * sizeof(long)));
1722 /* Free up the memory we used. */
1725 /* Update the highest-message pointer and unlock the room. */
1726 CC->room.QRhighest = highest_msg;
1727 lputroom(&CC->room);
1728 getroom(&CC->room, hold_rm);
1730 /* Bump the reference count for this message. */
1731 if ((flags & SM_DONT_BUMP_REF)==0) {
1732 AdjRefCount(msgid, +1);
1735 /* Return success. */
1736 if (msg != NULL) CtdlFreeMessage(msg);
1743 * Message base operation to save a new message to the message store
1744 * (returns new message number)
1746 * This is the back end for CtdlSubmitMsg() and should not be directly
1747 * called by server-side modules.
1750 long send_message(struct CtdlMessage *msg) {
1758 /* Get a new message number */
1759 newmsgid = get_new_message_number();
1760 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1762 /* Generate an ID if we don't have one already */
1763 if (msg->cm_fields['I']==NULL) {
1764 msg->cm_fields['I'] = strdup(msgidbuf);
1767 /* If the message is big, set its body aside for storage elsewhere */
1768 if (msg->cm_fields['M'] != NULL) {
1769 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1771 holdM = msg->cm_fields['M'];
1772 msg->cm_fields['M'] = NULL;
1776 /* Serialize our data structure for storage in the database */
1777 serialize_message(&smr, msg);
1780 msg->cm_fields['M'] = holdM;
1784 cprintf("%d Unable to serialize message\n",
1785 ERROR + INTERNAL_ERROR);
1789 /* Write our little bundle of joy into the message base */
1790 if (cdb_store(CDB_MSGMAIN, &newmsgid, (int)sizeof(long),
1791 smr.ser, smr.len) < 0) {
1792 lprintf(CTDL_ERR, "Can't store message\n");
1796 cdb_store(CDB_BIGMSGS,
1806 /* Free the memory we used for the serialized message */
1809 /* Return the *local* message ID to the caller
1810 * (even if we're storing an incoming network message)
1818 * Serialize a struct CtdlMessage into the format used on disk and network.
1820 * This function loads up a "struct ser_ret" (defined in server.h) which
1821 * contains the length of the serialized message and a pointer to the
1822 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1824 void serialize_message(struct ser_ret *ret, /* return values */
1825 struct CtdlMessage *msg) /* unserialized msg */
1829 static char *forder = FORDER;
1831 if (is_valid_message(msg) == 0) return; /* self check */
1834 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1835 ret->len = ret->len +
1836 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1838 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1839 ret->ser = malloc(ret->len);
1840 if (ret->ser == NULL) {
1846 ret->ser[1] = msg->cm_anon_type;
1847 ret->ser[2] = msg->cm_format_type;
1850 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1851 ret->ser[wlen++] = (char)forder[i];
1852 strcpy((char *)&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1853 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1855 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1856 (long)ret->len, (long)wlen);
1864 * Back end for the ReplicationChecks() function
1866 void check_repl(long msgnum, void *userdata) {
1867 lprintf(CTDL_DEBUG, "check_repl() replacing message %ld\n", msgnum);
1868 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1873 * Check to see if any messages already exist which carry the same Exclusive ID
1874 * as this one. If any are found, delete them.
1877 int ReplicationChecks(struct CtdlMessage *msg) {
1878 struct CtdlMessage *template;
1881 /* No exclusive id? Don't do anything. */
1882 if (msg->cm_fields['E'] == NULL) return 0;
1883 if (strlen(msg->cm_fields['E']) == 0) return 0;
1884 lprintf(CTDL_DEBUG, "Exclusive ID: <%s>\n", msg->cm_fields['E']);
1886 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1887 memset(template, 0, sizeof(struct CtdlMessage));
1888 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1890 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1892 CtdlFreeMessage(template);
1893 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1901 * Save a message to disk and submit it into the delivery system.
1903 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1904 struct recptypes *recps, /* recipients (if mail) */
1905 char *force /* force a particular room? */
1908 char hold_rm[ROOMNAMELEN];
1909 char actual_rm[ROOMNAMELEN];
1910 char force_room[ROOMNAMELEN];
1911 char content_type[SIZ]; /* We have to learn this */
1912 char recipient[SIZ];
1915 struct ctdluser userbuf;
1917 struct MetaData smi;
1918 FILE *network_fp = NULL;
1919 static int seqnum = 1;
1920 struct CtdlMessage *imsg = NULL;
1923 char *hold_R, *hold_D;
1925 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1926 if (is_valid_message(msg) == 0) return(-1); /* self check */
1928 /* If this message has no timestamp, we take the liberty of
1929 * giving it one, right now.
1931 if (msg->cm_fields['T'] == NULL) {
1932 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1933 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1934 msg->cm_fields['T'] = strdup(aaa);
1937 /* If this message has no path, we generate one.
1939 if (msg->cm_fields['P'] == NULL) {
1940 lprintf(CTDL_DEBUG, "Generating path\n");
1941 if (msg->cm_fields['A'] != NULL) {
1942 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1943 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1944 if (isspace(msg->cm_fields['P'][a])) {
1945 msg->cm_fields['P'][a] = ' ';
1950 msg->cm_fields['P'] = strdup("unknown");
1954 if (force == NULL) {
1955 strcpy(force_room, "");
1958 strcpy(force_room, force);
1961 /* Learn about what's inside, because it's what's inside that counts */
1962 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1963 if (msg->cm_fields['M'] == NULL) {
1964 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1968 switch (msg->cm_format_type) {
1970 strcpy(content_type, "text/x-citadel-variformat");
1973 strcpy(content_type, "text/plain");
1976 strcpy(content_type, "text/plain");
1977 mptr = bmstrstr(msg->cm_fields['M'],
1978 "Content-type: ", strncasecmp);
1980 safestrncpy(content_type, &mptr[14],
1981 sizeof content_type);
1982 for (a = 0; a < strlen(content_type); ++a) {
1983 if ((content_type[a] == ';')
1984 || (content_type[a] == ' ')
1985 || (content_type[a] == 13)
1986 || (content_type[a] == 10)) {
1987 content_type[a] = 0;
1993 /* Goto the correct room */
1994 lprintf(CTDL_DEBUG, "Selected room %s\n",
1995 (recps) ? CC->room.QRname : SENTITEMS);
1996 strcpy(hold_rm, CC->room.QRname);
1997 strcpy(actual_rm, CC->room.QRname);
1998 if (recps != NULL) {
1999 strcpy(actual_rm, SENTITEMS);
2002 /* If the user is a twit, move to the twit room for posting */
2003 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2004 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2006 if (CC->user.axlevel == 2) {
2007 strcpy(hold_rm, actual_rm);
2008 strcpy(actual_rm, config.c_twitroom);
2012 /* ...or if this message is destined for Aide> then go there. */
2013 if (strlen(force_room) > 0) {
2014 strcpy(actual_rm, force_room);
2017 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2018 if (strcasecmp(actual_rm, CC->room.QRname)) {
2019 getroom(&CC->room, actual_rm);
2023 * If this message has no O (room) field, generate one.
2025 if (msg->cm_fields['O'] == NULL) {
2026 msg->cm_fields['O'] = strdup(CC->room.QRname);
2029 /* Perform "before save" hooks (aborting if any return nonzero) */
2030 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2031 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-3);
2033 /* If this message has an Exclusive ID, perform replication checks */
2034 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2035 if (ReplicationChecks(msg) > 0) return(-4);
2037 /* Save it to disk */
2038 lprintf(CTDL_DEBUG, "Saving to disk\n");
2039 newmsgid = send_message(msg);
2040 if (newmsgid <= 0L) return(-5);
2042 /* Write a supplemental message info record. This doesn't have to
2043 * be a critical section because nobody else knows about this message
2046 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2047 memset(&smi, 0, sizeof(struct MetaData));
2048 smi.meta_msgnum = newmsgid;
2049 smi.meta_refcount = 0;
2050 safestrncpy(smi.meta_content_type, content_type, sizeof smi.meta_content_type);
2053 /* Now figure out where to store the pointers */
2054 lprintf(CTDL_DEBUG, "Storing pointers\n");
2056 /* If this is being done by the networker delivering a private
2057 * message, we want to BYPASS saving the sender's copy (because there
2058 * is no local sender; it would otherwise go to the Trashcan).
2060 if ((!CC->internal_pgm) || (recps == NULL)) {
2061 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2062 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2063 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2067 /* For internet mail, drop a copy in the outbound queue room */
2069 if (recps->num_internet > 0) {
2070 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2073 /* If other rooms are specified, drop them there too. */
2075 if (recps->num_room > 0)
2076 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2077 extract(recipient, recps->recp_room, i);
2078 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2079 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2082 /* Bump this user's messages posted counter. */
2083 lprintf(CTDL_DEBUG, "Updating user\n");
2084 lgetuser(&CC->user, CC->curr_user);
2085 CC->user.posted = CC->user.posted + 1;
2086 lputuser(&CC->user);
2088 /* If this is private, local mail, make a copy in the
2089 * recipient's mailbox and bump the reference count.
2092 if (recps->num_local > 0)
2093 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2094 extract(recipient, recps->recp_local, i);
2095 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2097 if (getuser(&userbuf, recipient) == 0) {
2098 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2099 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2100 BumpNewMailCounter(userbuf.usernum);
2103 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2104 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2108 /* Perform "after save" hooks */
2109 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2110 PerformMessageHooks(msg, EVT_AFTERSAVE);
2112 /* For IGnet mail, we have to save a new copy into the spooler for
2113 * each recipient, with the R and D fields set to the recipient and
2114 * destination-node. This has two ugly side effects: all other
2115 * recipients end up being unlisted in this recipient's copy of the
2116 * message, and it has to deliver multiple messages to the same
2117 * node. We'll revisit this again in a year or so when everyone has
2118 * a network spool receiver that can handle the new style messages.
2121 if (recps->num_ignet > 0)
2122 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2123 extract(recipient, recps->recp_ignet, i);
2125 hold_R = msg->cm_fields['R'];
2126 hold_D = msg->cm_fields['D'];
2127 msg->cm_fields['R'] = malloc(SIZ);
2128 msg->cm_fields['D'] = malloc(SIZ);
2129 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2130 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2132 serialize_message(&smr, msg);
2134 snprintf(aaa, sizeof aaa,
2135 "./network/spoolin/netmail.%04lx.%04x.%04x",
2136 (long) getpid(), CC->cs_pid, ++seqnum);
2137 network_fp = fopen(aaa, "wb+");
2138 if (network_fp != NULL) {
2139 fwrite(smr.ser, smr.len, 1, network_fp);
2145 free(msg->cm_fields['R']);
2146 free(msg->cm_fields['D']);
2147 msg->cm_fields['R'] = hold_R;
2148 msg->cm_fields['D'] = hold_D;
2151 /* Go back to the room we started from */
2152 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2153 if (strcasecmp(hold_rm, CC->room.QRname))
2154 getroom(&CC->room, hold_rm);
2156 /* For internet mail, generate delivery instructions.
2157 * Yes, this is recursive. Deal with it. Infinite recursion does
2158 * not happen because the delivery instructions message does not
2159 * contain a recipient.
2162 if (recps->num_internet > 0) {
2163 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2164 instr = malloc(SIZ * 2);
2165 snprintf(instr, SIZ * 2,
2166 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2168 SPOOLMIME, newmsgid, (long)time(NULL),
2169 msg->cm_fields['A'], msg->cm_fields['N']
2172 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2173 size_t tmp = strlen(instr);
2174 extract(recipient, recps->recp_internet, i);
2175 snprintf(&instr[tmp], SIZ * 2 - tmp,
2176 "remote|%s|0||\n", recipient);
2179 imsg = malloc(sizeof(struct CtdlMessage));
2180 memset(imsg, 0, sizeof(struct CtdlMessage));
2181 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2182 imsg->cm_anon_type = MES_NORMAL;
2183 imsg->cm_format_type = FMT_RFC822;
2184 imsg->cm_fields['A'] = strdup("Citadel");
2185 imsg->cm_fields['M'] = instr;
2186 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2187 CtdlFreeMessage(imsg);
2196 * Convenience function for generating small administrative messages.
2198 void quickie_message(char *from, char *to, char *room, char *text,
2199 int format_type, char *subject)
2201 struct CtdlMessage *msg;
2202 struct recptypes *recp = NULL;
2204 msg = malloc(sizeof(struct CtdlMessage));
2205 memset(msg, 0, sizeof(struct CtdlMessage));
2206 msg->cm_magic = CTDLMESSAGE_MAGIC;
2207 msg->cm_anon_type = MES_NORMAL;
2208 msg->cm_format_type = format_type;
2209 msg->cm_fields['A'] = strdup(from);
2210 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2211 msg->cm_fields['N'] = strdup(NODENAME);
2213 msg->cm_fields['R'] = strdup(to);
2214 recp = validate_recipients(to);
2216 if (subject != NULL) {
2217 msg->cm_fields['U'] = strdup(subject);
2219 msg->cm_fields['M'] = strdup(text);
2221 CtdlSubmitMsg(msg, recp, room);
2222 CtdlFreeMessage(msg);
2223 if (recp != NULL) free(recp);
2229 * Back end function used by CtdlMakeMessage() and similar functions
2231 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2232 size_t maxlen, /* maximum message length */
2233 char *exist, /* if non-null, append to it;
2234 exist is ALWAYS freed */
2235 int crlf /* CRLF newlines instead of LF */
2239 size_t message_len = 0;
2240 size_t buffer_len = 0;
2246 if (exist == NULL) {
2253 message_len = strlen(exist);
2254 buffer_len = message_len + 4096;
2255 m = realloc(exist, buffer_len);
2262 /* flush the input if we have nowhere to store it */
2267 /* read in the lines of message text one by one */
2269 if (client_getln(buf, sizeof buf) < 1) finished = 1;
2270 if (!strcmp(buf, terminator)) finished = 1;
2272 strcat(buf, "\r\n");
2278 if ( (!flushing) && (!finished) ) {
2279 /* Measure the line */
2280 linelen = strlen(buf);
2282 /* augment the buffer if we have to */
2283 if ((message_len + linelen) >= buffer_len) {
2284 ptr = realloc(m, (buffer_len * 2) );
2285 if (ptr == NULL) { /* flush if can't allocate */
2288 buffer_len = (buffer_len * 2);
2290 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2294 /* Add the new line to the buffer. NOTE: this loop must avoid
2295 * using functions like strcat() and strlen() because they
2296 * traverse the entire buffer upon every call, and doing that
2297 * for a multi-megabyte message slows it down beyond usability.
2299 strcpy(&m[message_len], buf);
2300 message_len += linelen;
2303 /* if we've hit the max msg length, flush the rest */
2304 if (message_len >= maxlen) flushing = 1;
2306 } while (!finished);
2314 * Build a binary message to be saved on disk.
2315 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2316 * will become part of the message. This means you are no longer
2317 * responsible for managing that memory -- it will be freed along with
2318 * the rest of the fields when CtdlFreeMessage() is called.)
2321 struct CtdlMessage *CtdlMakeMessage(
2322 struct ctdluser *author, /* author's user structure */
2323 char *recipient, /* NULL if it's not mail */
2324 char *room, /* room where it's going */
2325 int type, /* see MES_ types in header file */
2326 int format_type, /* variformat, plain text, MIME... */
2327 char *fake_name, /* who we're masquerading as */
2328 char *subject, /* Subject (optional) */
2329 char *preformatted_text /* ...or NULL to read text from client */
2331 char dest_node[SIZ];
2333 struct CtdlMessage *msg;
2335 msg = malloc(sizeof(struct CtdlMessage));
2336 memset(msg, 0, sizeof(struct CtdlMessage));
2337 msg->cm_magic = CTDLMESSAGE_MAGIC;
2338 msg->cm_anon_type = type;
2339 msg->cm_format_type = format_type;
2341 /* Don't confuse the poor folks if it's not routed mail. */
2342 strcpy(dest_node, "");
2346 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2347 msg->cm_fields['P'] = strdup(buf);
2349 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2350 msg->cm_fields['T'] = strdup(buf);
2352 if (fake_name[0]) /* author */
2353 msg->cm_fields['A'] = strdup(fake_name);
2355 msg->cm_fields['A'] = strdup(author->fullname);
2357 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2358 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2361 msg->cm_fields['O'] = strdup(CC->room.QRname);
2364 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2365 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2367 if (recipient[0] != 0) {
2368 msg->cm_fields['R'] = strdup(recipient);
2370 if (dest_node[0] != 0) {
2371 msg->cm_fields['D'] = strdup(dest_node);
2374 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2375 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2378 if (subject != NULL) {
2380 if (strlen(subject) > 0) {
2381 msg->cm_fields['U'] = strdup(subject);
2385 if (preformatted_text != NULL) {
2386 msg->cm_fields['M'] = preformatted_text;
2389 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2390 config.c_maxmsglen, NULL, 0);
2398 * Check to see whether we have permission to post a message in the current
2399 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2400 * returns 0 on success.
2402 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2404 if (!(CC->logged_in)) {
2405 snprintf(errmsgbuf, n, "Not logged in.");
2406 return (ERROR + NOT_LOGGED_IN);
2409 if ((CC->user.axlevel < 2)
2410 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2411 snprintf(errmsgbuf, n, "Need to be validated to enter "
2412 "(except in %s> to sysop)", MAILROOM);
2413 return (ERROR + HIGHER_ACCESS_REQUIRED);
2416 if ((CC->user.axlevel < 4)
2417 && (CC->room.QRflags & QR_NETWORK)) {
2418 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2419 return (ERROR + HIGHER_ACCESS_REQUIRED);
2422 if ((CC->user.axlevel < 6)
2423 && (CC->room.QRflags & QR_READONLY)) {
2424 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2425 return (ERROR + HIGHER_ACCESS_REQUIRED);
2428 strcpy(errmsgbuf, "Ok");
2434 * Check to see if the specified user has Internet mail permission
2435 * (returns nonzero if permission is granted)
2437 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2439 /* Do not allow twits to send Internet mail */
2440 if (who->axlevel <= 2) return(0);
2442 /* Globally enabled? */
2443 if (config.c_restrict == 0) return(1);
2445 /* User flagged ok? */
2446 if (who->flags & US_INTERNET) return(2);
2448 /* Aide level access? */
2449 if (who->axlevel >= 6) return(3);
2451 /* No mail for you! */
2458 * Validate recipients, count delivery types and errors, and handle aliasing
2459 * FIXME check for dupes!!!!!
2461 struct recptypes *validate_recipients(char *recipients) {
2462 struct recptypes *ret;
2463 char this_recp[SIZ];
2464 char this_recp_cooked[SIZ];
2470 struct ctdluser tempUS;
2471 struct ctdlroom tempQR;
2474 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2475 if (ret == NULL) return(NULL);
2476 memset(ret, 0, sizeof(struct recptypes));
2479 ret->num_internet = 0;
2484 if (recipients == NULL) {
2487 else if (strlen(recipients) == 0) {
2491 /* Change all valid separator characters to commas */
2492 for (i=0; i<strlen(recipients); ++i) {
2493 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2494 recipients[i] = ',';
2499 num_recps = num_tokens(recipients, ',');
2502 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2503 extract_token(this_recp, recipients, i, ',');
2505 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2506 mailtype = alias(this_recp);
2507 mailtype = alias(this_recp);
2508 mailtype = alias(this_recp);
2509 for (j=0; j<=strlen(this_recp); ++j) {
2510 if (this_recp[j]=='_') {
2511 this_recp_cooked[j] = ' ';
2514 this_recp_cooked[j] = this_recp[j];
2520 if (!strcasecmp(this_recp, "sysop")) {
2522 strcpy(this_recp, config.c_aideroom);
2523 if (strlen(ret->recp_room) > 0) {
2524 strcat(ret->recp_room, "|");
2526 strcat(ret->recp_room, this_recp);
2528 else if (getuser(&tempUS, this_recp) == 0) {
2530 strcpy(this_recp, tempUS.fullname);
2531 if (strlen(ret->recp_local) > 0) {
2532 strcat(ret->recp_local, "|");
2534 strcat(ret->recp_local, this_recp);
2536 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2538 strcpy(this_recp, tempUS.fullname);
2539 if (strlen(ret->recp_local) > 0) {
2540 strcat(ret->recp_local, "|");
2542 strcat(ret->recp_local, this_recp);
2544 else if ( (!strncasecmp(this_recp, "room_", 5))
2545 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2547 if (strlen(ret->recp_room) > 0) {
2548 strcat(ret->recp_room, "|");
2550 strcat(ret->recp_room, &this_recp_cooked[5]);
2558 /* Yes, you're reading this correctly: if the target
2559 * domain points back to the local system or an attached
2560 * Citadel directory, the address is invalid. That's
2561 * because if the address were valid, we would have
2562 * already translated it to a local address by now.
2564 if (IsDirectory(this_recp)) {
2569 ++ret->num_internet;
2570 if (strlen(ret->recp_internet) > 0) {
2571 strcat(ret->recp_internet, "|");
2573 strcat(ret->recp_internet, this_recp);
2578 if (strlen(ret->recp_ignet) > 0) {
2579 strcat(ret->recp_ignet, "|");
2581 strcat(ret->recp_ignet, this_recp);
2589 if (strlen(ret->errormsg) == 0) {
2590 snprintf(append, sizeof append,
2591 "Invalid recipient: %s",
2595 snprintf(append, sizeof append,
2598 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2599 strcat(ret->errormsg, append);
2603 if (strlen(ret->display_recp) == 0) {
2604 strcpy(append, this_recp);
2607 snprintf(append, sizeof append, ", %s",
2610 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2611 strcat(ret->display_recp, append);
2616 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2617 ret->num_room + ret->num_error) == 0) {
2619 strcpy(ret->errormsg, "No recipients specified.");
2622 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2623 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2624 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2625 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2626 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2627 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2635 * message entry - mode 0 (normal)
2637 void cmd_ent0(char *entargs)
2641 char masquerade_as[SIZ];
2643 int format_type = 0;
2644 char newusername[SIZ];
2645 struct CtdlMessage *msg;
2649 struct recptypes *valid = NULL;
2656 post = extract_int(entargs, 0);
2657 extract(recp, entargs, 1);
2658 anon_flag = extract_int(entargs, 2);
2659 format_type = extract_int(entargs, 3);
2660 extract(subject, entargs, 4);
2661 do_confirm = extract_int(entargs, 6);
2663 /* first check to make sure the request is valid. */
2665 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2667 cprintf("%d %s\n", err, errmsg);
2671 /* Check some other permission type things. */
2674 if (CC->user.axlevel < 6) {
2675 cprintf("%d You don't have permission to masquerade.\n",
2676 ERROR + HIGHER_ACCESS_REQUIRED);
2679 extract(newusername, entargs, 5);
2680 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2681 safestrncpy(CC->fake_postname, newusername,
2682 sizeof(CC->fake_postname) );
2683 cprintf("%d ok\n", CIT_OK);
2686 CC->cs_flags |= CS_POSTING;
2688 /* In the Mail> room we have to behave a little differently --
2689 * make sure the user has specified at least one recipient. Then
2690 * validate the recipient(s).
2692 if ( (CC->room.QRflags & QR_MAILBOX)
2693 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2695 if (CC->user.axlevel < 2) {
2696 strcpy(recp, "sysop");
2699 valid = validate_recipients(recp);
2700 if (valid->num_error > 0) {
2702 ERROR + NO_SUCH_USER, valid->errormsg);
2706 if (valid->num_internet > 0) {
2707 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2708 cprintf("%d You do not have permission "
2709 "to send Internet mail.\n",
2710 ERROR + HIGHER_ACCESS_REQUIRED);
2716 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2717 && (CC->user.axlevel < 4) ) {
2718 cprintf("%d Higher access required for network mail.\n",
2719 ERROR + HIGHER_ACCESS_REQUIRED);
2724 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2725 && ((CC->user.flags & US_INTERNET) == 0)
2726 && (!CC->internal_pgm)) {
2727 cprintf("%d You don't have access to Internet mail.\n",
2728 ERROR + HIGHER_ACCESS_REQUIRED);
2735 /* Is this a room which has anonymous-only or anonymous-option? */
2736 anonymous = MES_NORMAL;
2737 if (CC->room.QRflags & QR_ANONONLY) {
2738 anonymous = MES_ANONONLY;
2740 if (CC->room.QRflags & QR_ANONOPT) {
2741 if (anon_flag == 1) { /* only if the user requested it */
2742 anonymous = MES_ANONOPT;
2746 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2750 /* If we're only checking the validity of the request, return
2751 * success without creating the message.
2754 cprintf("%d %s\n", CIT_OK,
2755 ((valid != NULL) ? valid->display_recp : "") );
2760 /* Handle author masquerading */
2761 if (CC->fake_postname[0]) {
2762 strcpy(masquerade_as, CC->fake_postname);
2764 else if (CC->fake_username[0]) {
2765 strcpy(masquerade_as, CC->fake_username);
2768 strcpy(masquerade_as, "");
2771 /* Read in the message from the client. */
2773 cprintf("%d send message\n", START_CHAT_MODE);
2775 cprintf("%d send message\n", SEND_LISTING);
2777 msg = CtdlMakeMessage(&CC->user, recp,
2778 CC->room.QRname, anonymous, format_type,
2779 masquerade_as, subject, NULL);
2782 msgnum = CtdlSubmitMsg(msg, valid, "");
2785 cprintf("%ld\n", msgnum);
2787 cprintf("Message accepted.\n");
2790 cprintf("Internal error.\n");
2792 if (msg->cm_fields['E'] != NULL) {
2793 cprintf("%s\n", msg->cm_fields['E']);
2800 CtdlFreeMessage(msg);
2802 CC->fake_postname[0] = '\0';
2810 * API function to delete messages which match a set of criteria
2811 * (returns the actual number of messages deleted)
2813 int CtdlDeleteMessages(char *room_name, /* which room */
2814 long dmsgnum, /* or "0" for any */
2815 char *content_type /* or "" for any */
2819 struct ctdlroom qrbuf;
2820 struct cdbdata *cdbfr;
2821 long *msglist = NULL;
2822 long *dellist = NULL;
2825 int num_deleted = 0;
2827 struct MetaData smi;
2829 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2830 room_name, dmsgnum, content_type);
2832 /* get room record, obtaining a lock... */
2833 if (lgetroom(&qrbuf, room_name) != 0) {
2834 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2836 return (0); /* room not found */
2838 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2840 if (cdbfr != NULL) {
2841 msglist = malloc(cdbfr->len);
2842 dellist = malloc(cdbfr->len);
2843 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2844 num_msgs = cdbfr->len / sizeof(long);
2848 for (i = 0; i < num_msgs; ++i) {
2851 /* Set/clear a bit for each criterion */
2853 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2854 delete_this |= 0x01;
2856 if (strlen(content_type) == 0) {
2857 delete_this |= 0x02;
2859 GetMetaData(&smi, msglist[i]);
2860 if (!strcasecmp(smi.meta_content_type,
2862 delete_this |= 0x02;
2866 /* Delete message only if all bits are set */
2867 if (delete_this == 0x03) {
2868 dellist[num_deleted++] = msglist[i];
2873 num_msgs = sort_msglist(msglist, num_msgs);
2874 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, (int)sizeof(long),
2875 msglist, (int)(num_msgs * sizeof(long)));
2877 qrbuf.QRhighest = msglist[num_msgs - 1];
2881 /* Go through the messages we pulled out of the index, and decrement
2882 * their reference counts by 1. If this is the only room the message
2883 * was in, the reference count will reach zero and the message will
2884 * automatically be deleted from the database. We do this in a
2885 * separate pass because there might be plug-in hooks getting called,
2886 * and we don't want that happening during an S_ROOMS critical
2889 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2890 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2891 AdjRefCount(dellist[i], -1);
2894 /* Now free the memory we used, and go away. */
2895 if (msglist != NULL) free(msglist);
2896 if (dellist != NULL) free(dellist);
2897 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2898 return (num_deleted);
2904 * Check whether the current user has permission to delete messages from
2905 * the current room (returns 1 for yes, 0 for no)
2907 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2908 getuser(&CC->user, CC->curr_user);
2909 if ((CC->user.axlevel < 6)
2910 && (CC->user.usernum != CC->room.QRroomaide)
2911 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2912 && (!(CC->internal_pgm))) {
2921 * Delete message from current room
2923 void cmd_dele(char *delstr)
2928 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2929 cprintf("%d Higher access required.\n",
2930 ERROR + HIGHER_ACCESS_REQUIRED);
2933 delnum = extract_long(delstr, 0);
2935 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2938 cprintf("%d %d message%s deleted.\n", CIT_OK,
2939 num_deleted, ((num_deleted != 1) ? "s" : ""));
2941 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2947 * Back end API function for moves and deletes
2949 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2952 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2953 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2954 if (err != 0) return(err);
2962 * move or copy a message to another room
2964 void cmd_move(char *args)
2968 struct ctdlroom qtemp;
2974 num = extract_long(args, 0);
2975 extract(targ, args, 1);
2976 targ[ROOMNAMELEN - 1] = 0;
2977 is_copy = extract_int(args, 2);
2979 if (getroom(&qtemp, targ) != 0) {
2980 cprintf("%d '%s' does not exist.\n",
2981 ERROR + ROOM_NOT_FOUND, targ);
2985 getuser(&CC->user, CC->curr_user);
2986 CtdlRoomAccess(&qtemp, &CC->user, &ra, NULL);
2988 /* Check for permission to perform this operation.
2989 * Remember: "CC->room" is source, "qtemp" is target.
2993 /* Aides can move/copy */
2994 if (CC->user.axlevel >= 6) permit = 1;
2996 /* Room aides can move/copy */
2997 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
2999 /* Permit move/copy from personal rooms */
3000 if ((CC->room.QRflags & QR_MAILBOX)
3001 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3003 /* Permit only copy from public to personal room */
3005 && (!(CC->room.QRflags & QR_MAILBOX))
3006 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3008 /* User must have access to target room */
3009 if (!(ra & UA_KNOWN)) permit = 0;
3012 cprintf("%d Higher access required.\n",
3013 ERROR + HIGHER_ACCESS_REQUIRED);
3017 err = CtdlCopyMsgToRoom(num, targ);
3019 cprintf("%d Cannot store message in %s: error %d\n",
3024 /* Now delete the message from the source room,
3025 * if this is a 'move' rather than a 'copy' operation.
3028 CtdlDeleteMessages(CC->room.QRname, num, "");
3031 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3037 * GetMetaData() - Get the supplementary record for a message
3039 void GetMetaData(struct MetaData *smibuf, long msgnum)
3042 struct cdbdata *cdbsmi;
3045 memset(smibuf, 0, sizeof(struct MetaData));
3046 smibuf->meta_msgnum = msgnum;
3047 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3049 /* Use the negative of the message number for its supp record index */
3050 TheIndex = (0L - msgnum);
3052 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3053 if (cdbsmi == NULL) {
3054 return; /* record not found; go with defaults */
3056 memcpy(smibuf, cdbsmi->ptr,
3057 ((cdbsmi->len > sizeof(struct MetaData)) ?
3058 sizeof(struct MetaData) : cdbsmi->len));
3065 * PutMetaData() - (re)write supplementary record for a message
3067 void PutMetaData(struct MetaData *smibuf)
3071 /* Use the negative of the message number for the metadata db index */
3072 TheIndex = (0L - smibuf->meta_msgnum);
3074 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3075 smibuf->meta_msgnum, smibuf->meta_refcount);
3077 cdb_store(CDB_MSGMAIN,
3078 &TheIndex, (int)sizeof(long),
3079 smibuf, (int)sizeof(struct MetaData));
3084 * AdjRefCount - change the reference count for a message;
3085 * delete the message if it reaches zero
3087 void AdjRefCount(long msgnum, int incr)
3090 struct MetaData smi;
3093 /* This is a *tight* critical section; please keep it that way, as
3094 * it may get called while nested in other critical sections.
3095 * Complicating this any further will surely cause deadlock!
3097 begin_critical_section(S_SUPPMSGMAIN);
3098 GetMetaData(&smi, msgnum);
3099 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3100 msgnum, smi.meta_refcount);
3101 smi.meta_refcount += incr;
3103 end_critical_section(S_SUPPMSGMAIN);
3104 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3105 msgnum, smi.meta_refcount);
3107 /* If the reference count is now zero, delete the message
3108 * (and its supplementary record as well).
3110 if (smi.meta_refcount == 0) {
3111 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3113 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3114 cdb_delete(CDB_BIGMSGS, &delnum, (int)sizeof(long));
3116 /* We have to delete the metadata record too! */
3117 delnum = (0L - msgnum);
3118 cdb_delete(CDB_MSGMAIN, &delnum, (int)sizeof(long));
3123 * Write a generic object to this room
3125 * Note: this could be much more efficient. Right now we use two temporary
3126 * files, and still pull the message into memory as with all others.
3128 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3129 char *content_type, /* MIME type of this object */
3130 char *tempfilename, /* Where to fetch it from */
3131 struct ctdluser *is_mailbox, /* Mailbox room? */
3132 int is_binary, /* Is encoding necessary? */
3133 int is_unique, /* Del others of this type? */
3134 unsigned int flags /* Internal save flags */
3139 struct ctdlroom qrbuf;
3140 char roomname[ROOMNAMELEN];
3141 struct CtdlMessage *msg;
3143 char *raw_message = NULL;
3144 char *encoded_message = NULL;
3145 off_t raw_length = 0;
3147 if (is_mailbox != NULL)
3148 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3150 safestrncpy(roomname, req_room, sizeof(roomname));
3151 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3154 fp = fopen(tempfilename, "rb");
3156 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3157 tempfilename, strerror(errno));
3160 fseek(fp, 0L, SEEK_END);
3161 raw_length = ftell(fp);
3163 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3165 raw_message = malloc((size_t)raw_length + 2);
3166 fread(raw_message, (size_t)raw_length, 1, fp);
3170 encoded_message = malloc((size_t)
3171 (((raw_length * 134) / 100) + 4096 ) );
3174 encoded_message = malloc((size_t)(raw_length + 4096));
3177 sprintf(encoded_message, "Content-type: %s\n", content_type);
3180 sprintf(&encoded_message[strlen(encoded_message)],
3181 "Content-transfer-encoding: base64\n\n"
3185 sprintf(&encoded_message[strlen(encoded_message)],
3186 "Content-transfer-encoding: 7bit\n\n"
3192 &encoded_message[strlen(encoded_message)],
3198 raw_message[raw_length] = 0;
3200 &encoded_message[strlen(encoded_message)],
3208 lprintf(CTDL_DEBUG, "Allocating\n");
3209 msg = malloc(sizeof(struct CtdlMessage));
3210 memset(msg, 0, sizeof(struct CtdlMessage));
3211 msg->cm_magic = CTDLMESSAGE_MAGIC;
3212 msg->cm_anon_type = MES_NORMAL;
3213 msg->cm_format_type = 4;
3214 msg->cm_fields['A'] = strdup(CC->user.fullname);
3215 msg->cm_fields['O'] = strdup(req_room);
3216 msg->cm_fields['N'] = strdup(config.c_nodename);
3217 msg->cm_fields['H'] = strdup(config.c_humannode);
3218 msg->cm_flags = flags;
3220 msg->cm_fields['M'] = encoded_message;
3222 /* Create the requested room if we have to. */
3223 if (getroom(&qrbuf, roomname) != 0) {
3224 create_room(roomname,
3225 ( (is_mailbox != NULL) ? 5 : 3 ),
3226 "", 0, 1, 0, VIEW_BBS);
3228 /* If the caller specified this object as unique, delete all
3229 * other objects of this type that are currently in the room.
3232 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3233 CtdlDeleteMessages(roomname, 0L, content_type));
3235 /* Now write the data */
3236 CtdlSubmitMsg(msg, NULL, roomname);
3237 CtdlFreeMessage(msg);
3245 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3246 config_msgnum = msgnum;
3250 char *CtdlGetSysConfig(char *sysconfname) {
3251 char hold_rm[ROOMNAMELEN];
3254 struct CtdlMessage *msg;
3257 strcpy(hold_rm, CC->room.QRname);
3258 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3259 getroom(&CC->room, hold_rm);
3264 /* We want the last (and probably only) config in this room */
3265 begin_critical_section(S_CONFIG);
3266 config_msgnum = (-1L);
3267 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3268 CtdlGetSysConfigBackend, NULL);
3269 msgnum = config_msgnum;
3270 end_critical_section(S_CONFIG);
3276 msg = CtdlFetchMessage(msgnum, 1);
3278 conf = strdup(msg->cm_fields['M']);
3279 CtdlFreeMessage(msg);
3286 getroom(&CC->room, hold_rm);
3288 if (conf != NULL) do {
3289 extract_token(buf, conf, 0, '\n');
3290 strcpy(conf, &conf[strlen(buf)+1]);
3291 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3296 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3297 char temp[PATH_MAX];
3300 strcpy(temp, tmpnam(NULL));
3302 fp = fopen(temp, "w");
3303 if (fp == NULL) return;
3304 fprintf(fp, "%s", sysconfdata);
3307 /* this handy API function does all the work for us */
3308 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3314 * Determine whether a given Internet address belongs to the current user
3316 int CtdlIsMe(char *addr) {
3317 struct recptypes *recp;
3320 recp = validate_recipients(addr);
3321 if (recp == NULL) return(0);
3323 if (recp->num_local == 0) {
3328 for (i=0; i<recp->num_local; ++i) {
3329 extract(addr, recp->recp_local, i);
3330 if (!strcasecmp(addr, CC->user.fullname)) {
3342 * Citadel protocol command to do the same
3344 void cmd_isme(char *argbuf) {
3347 if (CtdlAccessCheck(ac_logged_in)) return;
3348 extract(addr, argbuf, 0);
3350 if (CtdlIsMe(addr)) {
3351 cprintf("%d %s\n", CIT_OK, addr);
3354 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);