4 * Implements the message store.
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
23 # include <sys/time.h>
38 #include "serv_extensions.h"
42 #include "sysdep_decls.h"
43 #include "citserver.h"
49 #include "mime_parser.h"
52 #include "internet_addressing.h"
54 #define desired_section ((char *)CtdlGetUserData(SYM_DESIRED_SECTION))
55 #define ma ((struct ma_info *)CtdlGetUserData(SYM_MA_INFO))
56 #define msg_repl ((struct repl *)CtdlGetUserData(SYM_REPL))
58 extern struct config config;
63 * This really belongs in serv_network.c, but I don't know how to export
64 * symbols between modules.
66 struct FilterList *filterlist = NULL;
70 * These are the four-character field headers we use when outputting
71 * messages in Citadel format (as opposed to RFC822 format).
74 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
75 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
76 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
77 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
78 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
79 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
80 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
81 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
108 * This function is self explanatory.
109 * (What can I say, I'm in a weird mood today...)
111 void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name)
115 for (i = 0; i < strlen(name); ++i) {
116 if (name[i] == '@') {
117 while (isspace(name[i - 1]) && i > 0) {
118 strcpy(&name[i - 1], &name[i]);
121 while (isspace(name[i + 1])) {
122 strcpy(&name[i + 1], &name[i + 2]);
130 * Aliasing for network mail.
131 * (Error messages have been commented out, because this is a server.)
133 int alias(char *name)
134 { /* process alias and routing info for mail */
137 char aaa[SIZ], bbb[SIZ];
138 char *ignetcfg = NULL;
139 char *ignetmap = NULL;
146 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
148 fp = fopen("network/mail.aliases", "r");
150 fp = fopen("/dev/null", "r");
157 while (fgets(aaa, sizeof aaa, fp) != NULL) {
158 while (isspace(name[0]))
159 strcpy(name, &name[1]);
160 aaa[strlen(aaa) - 1] = 0;
162 for (a = 0; a < strlen(aaa); ++a) {
164 strcpy(bbb, &aaa[a + 1]);
168 if (!strcasecmp(name, aaa))
173 /* Hit the Global Address Book */
174 if (CtdlDirectoryLookup(aaa, name) == 0) {
178 lprintf(CTDL_INFO, "Mail is being forwarded to %s\n", name);
180 /* Change "user @ xxx" to "user" if xxx is an alias for this host */
181 for (a=0; a<strlen(name); ++a) {
182 if (name[a] == '@') {
183 if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
185 lprintf(CTDL_INFO, "Changed to <%s>\n", name);
190 /* determine local or remote type, see citadel.h */
191 at = haschar(name, '@');
192 if (at == 0) return(MES_LOCAL); /* no @'s - local address */
193 if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
194 remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
196 /* figure out the delivery mode */
197 extract_token(node, name, 1, '@');
199 /* If there are one or more dots in the nodename, we assume that it
200 * is an FQDN and will attempt SMTP delivery to the Internet.
202 if (haschar(node, '.') > 0) {
203 return(MES_INTERNET);
206 /* Otherwise we look in the IGnet maps for a valid Citadel node.
207 * Try directly-connected nodes first...
209 ignetcfg = CtdlGetSysConfig(IGNETCFG);
210 for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
211 extract_token(buf, ignetcfg, i, '\n');
212 extract_token(testnode, buf, 0, '|');
213 if (!strcasecmp(node, testnode)) {
221 * Then try nodes that are two or more hops away.
223 ignetmap = CtdlGetSysConfig(IGNETMAP);
224 for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
225 extract_token(buf, ignetmap, i, '\n');
226 extract_token(testnode, buf, 0, '|');
227 if (!strcasecmp(node, testnode)) {
234 /* If we get to this point it's an invalid node name */
243 fp = fopen("citadel.control", "r");
245 lprintf(CTDL_CRIT, "Cannot open citadel.control: %s\n",
249 fread((char *) &CitControl, sizeof(struct CitControl), 1, fp);
255 void simple_listing(long msgnum, void *userdata)
257 cprintf("%ld\n", msgnum);
262 /* Determine if a given message matches the fields in a message template.
263 * Return 0 for a successful match.
265 int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
268 /* If there aren't any fields in the template, all messages will
271 if (template == NULL) return(0);
273 /* Null messages are bogus. */
274 if (msg == NULL) return(1);
276 for (i='A'; i<='Z'; ++i) {
277 if (template->cm_fields[i] != NULL) {
278 if (msg->cm_fields[i] == NULL) {
281 if (strcasecmp(msg->cm_fields[i],
282 template->cm_fields[i])) return 1;
286 /* All compares succeeded: we have a match! */
293 * Retrieve the "seen" message list for the current room.
295 void CtdlGetSeen(char *buf, int which_set) {
298 /* Learn about the user and room in question */
299 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
301 if (which_set == ctdlsetseen_seen)
302 safestrncpy(buf, vbuf.v_seen, SIZ);
303 if (which_set == ctdlsetseen_answered)
304 safestrncpy(buf, vbuf.v_answered, SIZ);
310 * Manipulate the "seen msgs" string (or other message set strings)
312 void CtdlSetSeen(long target_msgnum, int target_setting, int which_set) {
314 struct cdbdata *cdbfr;
325 /* Learn about the user and room in question */
326 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
328 /* Load the message list */
329 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
331 msglist = malloc(cdbfr->len);
332 memcpy(msglist, cdbfr->ptr, cdbfr->len);
333 num_msgs = cdbfr->len / sizeof(long);
336 return; /* No messages at all? No further action. */
339 /* Decide which message set we're manipulating */
340 if (which_set == ctdlsetseen_seen) strcpy(vset, vbuf.v_seen);
341 if (which_set == ctdlsetseen_answered) strcpy(vset, vbuf.v_answered);
343 lprintf(CTDL_DEBUG, "before optimize: %s\n", vset);
346 for (i=0; i<num_msgs; ++i) {
349 if (msglist[i] == target_msgnum) {
350 is_seen = target_setting;
353 if (is_msg_in_mset(vset, msglist[i])) {
359 if (lo < 0L) lo = msglist[i];
362 if ( ((is_seen == 0) && (was_seen == 1))
363 || ((is_seen == 1) && (i == num_msgs-1)) ) {
366 if ( (strlen(newseen) + 20) > SIZ) {
367 strcpy(newseen, &newseen[20]);
370 tmp = strlen(newseen);
372 strcat(newseen, ",");
376 snprintf(&newseen[tmp], sizeof newseen - tmp,
380 snprintf(&newseen[tmp], sizeof newseen - tmp,
389 /* Decide which message set we're manipulating */
390 if (which_set == ctdlsetseen_seen) strcpy(vbuf.v_seen, newseen);
391 if (which_set == ctdlsetseen_answered) strcpy(vbuf.v_answered, newseen);
393 lprintf(CTDL_DEBUG, " after optimize: %s\n", newseen);
395 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
400 * API function to perform an operation for each qualifying message in the
401 * current room. (Returns the number of messages processed.)
403 int CtdlForEachMessage(int mode, long ref,
405 struct CtdlMessage *compare,
406 void (*CallBack) (long, void *),
412 struct cdbdata *cdbfr;
413 long *msglist = NULL;
415 int num_processed = 0;
418 struct CtdlMessage *msg;
421 int printed_lastold = 0;
423 /* Learn about the user and room in question */
425 getuser(&CC->user, CC->curr_user);
426 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
428 /* Load the message list */
429 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
431 msglist = malloc(cdbfr->len);
432 memcpy(msglist, cdbfr->ptr, cdbfr->len);
433 num_msgs = cdbfr->len / sizeof(long);
436 return 0; /* No messages at all? No further action. */
441 * Now begin the traversal.
443 if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
445 /* If the caller is looking for a specific MIME type, filter
446 * out all messages which are not of the type requested.
448 if (content_type != NULL) if (strlen(content_type) > 0) {
450 /* This call to GetMetaData() sits inside this loop
451 * so that we only do the extra database read per msg
452 * if we need to. Doing the extra read all the time
453 * really kills the server. If we ever need to use
454 * metadata for another search criterion, we need to
455 * move the read somewhere else -- but still be smart
456 * enough to only do the read if the caller has
457 * specified something that will need it.
459 GetMetaData(&smi, msglist[a]);
461 if (strcasecmp(smi.meta_content_type, content_type)) {
467 num_msgs = sort_msglist(msglist, num_msgs);
469 /* If a template was supplied, filter out the messages which
470 * don't match. (This could induce some delays!)
473 if (compare != NULL) {
474 for (a = 0; a < num_msgs; ++a) {
475 msg = CtdlFetchMessage(msglist[a], 1);
477 if (CtdlMsgCmp(msg, compare)) {
480 CtdlFreeMessage(msg);
488 * Now iterate through the message list, according to the
489 * criteria supplied by the caller.
492 for (a = 0; a < num_msgs; ++a) {
493 thismsg = msglist[a];
494 is_seen = is_msg_in_mset(vbuf.v_seen, thismsg);
495 if (is_seen) lastold = thismsg;
500 || ((mode == MSGS_OLD) && (is_seen))
501 || ((mode == MSGS_NEW) && (!is_seen))
502 || ((mode == MSGS_LAST) && (a >= (num_msgs - ref)))
503 || ((mode == MSGS_FIRST) && (a < ref))
504 || ((mode == MSGS_GT) && (thismsg > ref))
505 || ((mode == MSGS_EQ) && (thismsg == ref))
508 if ((mode == MSGS_NEW) && (CC->user.flags & US_LASTOLD) && (lastold > 0L) && (printed_lastold == 0) && (!is_seen)) {
510 CallBack(lastold, userdata);
514 if (CallBack) CallBack(thismsg, userdata);
518 free(msglist); /* Clean up */
519 return num_processed;
525 * cmd_msgs() - get list of message #'s in this room
526 * implements the MSGS server command using CtdlForEachMessage()
528 void cmd_msgs(char *cmdbuf)
537 int with_template = 0;
538 struct CtdlMessage *template = NULL;
540 extract(which, cmdbuf, 0);
541 cm_ref = extract_int(cmdbuf, 1);
542 with_template = extract_int(cmdbuf, 2);
546 if (!strncasecmp(which, "OLD", 3))
548 else if (!strncasecmp(which, "NEW", 3))
550 else if (!strncasecmp(which, "FIRST", 5))
552 else if (!strncasecmp(which, "LAST", 4))
554 else if (!strncasecmp(which, "GT", 2))
557 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
558 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_gets(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] =
580 cprintf("%d Message list...\n", LISTING_FOLLOWS);
583 CtdlForEachMessage(mode, cm_ref,
584 NULL, template, simple_listing, NULL);
585 if (template != NULL) CtdlFreeMessage(template);
593 * help_subst() - support routine for help file viewer
595 void help_subst(char *strbuf, char *source, char *dest)
600 while (p = pattern2(strbuf, source), (p >= 0)) {
601 strcpy(workbuf, &strbuf[p + strlen(source)]);
602 strcpy(&strbuf[p], dest);
603 strcat(strbuf, workbuf);
608 void do_help_subst(char *buffer)
612 help_subst(buffer, "^nodename", config.c_nodename);
613 help_subst(buffer, "^humannode", config.c_humannode);
614 help_subst(buffer, "^fqdn", config.c_fqdn);
615 help_subst(buffer, "^username", CC->user.fullname);
616 snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
617 help_subst(buffer, "^usernum", buf2);
618 help_subst(buffer, "^sysadm", config.c_sysadm);
619 help_subst(buffer, "^variantname", CITADEL);
620 snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
621 help_subst(buffer, "^maxsessions", buf2);
622 help_subst(buffer, "^bbsdir", BBSDIR);
628 * memfmout() - Citadel text formatter and paginator.
629 * Although the original purpose of this routine was to format
630 * text to the reader's screen width, all we're really using it
631 * for here is to format text out to 80 columns before sending it
632 * to the client. The client software may reformat it again.
635 int width, /* screen width to use */
636 char *mptr, /* where are we going to get our text from? */
637 char subst, /* nonzero if we should do substitutions */
638 char *nl) /* string to terminate lines with */
650 c = 1; /* c is the current pos */
654 while (ch = *mptr, ((ch != 0) && (strlen(buffer) < 126))) {
656 buffer[strlen(buffer) + 1] = 0;
657 buffer[strlen(buffer)] = ch;
660 if (buffer[0] == '^')
661 do_help_subst(buffer);
663 buffer[strlen(buffer) + 1] = 0;
665 strcpy(buffer, &buffer[1]);
673 if (((ch == 13) || (ch == 10)) && (old != 13) && (old != 10))
675 if (((old == 13) || (old == 10)) && (isspace(real))) {
683 if (((strlen(aaa) + c) > (width - 5)) && (strlen(aaa) > (width - 5))) {
684 cprintf("%s%s", nl, aaa);
693 if ((strlen(aaa) + c) > (width - 5)) {
702 if ((ch == 13) || (ch == 10)) {
703 cprintf("%s%s", aaa, nl);
710 cprintf("%s%s", aaa, nl);
716 * Callback function for mime parser that simply lists the part
718 void list_this_part(char *name, char *filename, char *partnum, char *disp,
719 void *content, char *cbtype, size_t length, char *encoding,
723 cprintf("part=%s|%s|%s|%s|%s|%ld\n",
724 name, filename, partnum, disp, cbtype, (long)length);
728 * Callback function for multipart prefix
730 void list_this_pref(char *name, char *filename, char *partnum, char *disp,
731 void *content, char *cbtype, size_t length, char *encoding,
734 cprintf("pref=%s|%s\n", partnum, cbtype);
738 * Callback function for multipart sufffix
740 void list_this_suff(char *name, char *filename, char *partnum, char *disp,
741 void *content, char *cbtype, size_t length, char *encoding,
744 cprintf("suff=%s|%s\n", partnum, cbtype);
749 * Callback function for mime parser that opens a section for downloading
751 void mime_download(char *name, char *filename, char *partnum, char *disp,
752 void *content, char *cbtype, size_t length, char *encoding,
756 /* Silently go away if there's already a download open... */
757 if (CC->download_fp != NULL)
760 /* ...or if this is not the desired section */
761 if (strcasecmp(desired_section, partnum))
764 CC->download_fp = tmpfile();
765 if (CC->download_fp == NULL)
768 fwrite(content, length, 1, CC->download_fp);
769 fflush(CC->download_fp);
770 rewind(CC->download_fp);
772 OpenCmdResult(filename, cbtype);
778 * Load a message from disk into memory.
779 * This is used by CtdlOutputMsg() and other fetch functions.
781 * NOTE: Caller is responsible for freeing the returned CtdlMessage struct
782 * using the CtdlMessageFree() function.
784 struct CtdlMessage *CtdlFetchMessage(long msgnum, int with_body)
786 struct cdbdata *dmsgtext;
787 struct cdbdata *dbigmsg;
788 struct CtdlMessage *ret = NULL;
791 cit_uint8_t field_header;
794 dmsgtext = cdb_fetch(CDB_MSGMAIN, &msgnum, sizeof(long));
795 if (dmsgtext == NULL) {
798 mptr = dmsgtext->ptr;
800 /* Parse the three bytes that begin EVERY message on disk.
801 * The first is always 0xFF, the on-disk magic number.
802 * The second is the anonymous/public type byte.
803 * The third is the format type byte (vari, fixed, or MIME).
807 lprintf(CTDL_ERR, "Message %ld appears to be corrupted.\n", msgnum);
811 ret = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
812 memset(ret, 0, sizeof(struct CtdlMessage));
814 ret->cm_magic = CTDLMESSAGE_MAGIC;
815 ret->cm_anon_type = *mptr++; /* Anon type byte */
816 ret->cm_format_type = *mptr++; /* Format type byte */
819 * The rest is zero or more arbitrary fields. Load them in.
820 * We're done when we encounter either a zero-length field or
821 * have just processed the 'M' (message text) field.
824 field_length = strlen(mptr);
825 if (field_length == 0)
827 field_header = *mptr++;
828 ret->cm_fields[field_header] = malloc(field_length);
829 strcpy(ret->cm_fields[field_header], mptr);
831 while (*mptr++ != 0); /* advance to next field */
833 } while ((field_length > 0) && (field_header != 'M'));
837 /* Always make sure there's something in the msg text field. If
838 * it's NULL, the message text is most likely stored separately,
839 * so go ahead and fetch that. Failing that, just set a dummy
840 * body so other code doesn't barf.
842 if (ret->cm_fields['M'] == NULL) {
844 dbigmsg = cdb_fetch(CDB_BIGMSGS, &msgnum, sizeof(long));
845 if (dmsgtext == NULL) {
846 ret->cm_fields['M'] = strdup("<no text>\n");
849 ret->cm_fields['M'] = strdup(dbigmsg->ptr);
854 /* Perform "before read" hooks (aborting if any return nonzero) */
855 if (PerformMessageHooks(ret, EVT_BEFOREREAD) > 0) {
856 CtdlFreeMessage(ret);
865 * Returns 1 if the supplied pointer points to a valid Citadel message.
866 * If the pointer is NULL or the magic number check fails, returns 0.
868 int is_valid_message(struct CtdlMessage *msg) {
871 if ((msg->cm_magic) != CTDLMESSAGE_MAGIC) {
872 lprintf(CTDL_WARNING, "is_valid_message() -- self-check failed\n");
880 * 'Destructor' for struct CtdlMessage
882 void CtdlFreeMessage(struct CtdlMessage *msg)
886 if (is_valid_message(msg) == 0) return;
888 for (i = 0; i < 256; ++i)
889 if (msg->cm_fields[i] != NULL) {
890 free(msg->cm_fields[i]);
893 msg->cm_magic = 0; /* just in case */
899 * Pre callback function for multipart/alternative
901 * NOTE: this differs from the standard behavior for a reason. Normally when
902 * displaying multipart/alternative you want to show the _last_ usable
903 * format in the message. Here we show the _first_ one, because it's
904 * usually text/plain. Since this set of functions is designed for text
905 * output to non-MIME-aware clients, this is the desired behavior.
908 void fixed_output_pre(char *name, char *filename, char *partnum, char *disp,
909 void *content, char *cbtype, size_t length, char *encoding,
912 lprintf(CTDL_DEBUG, "fixed_output_pre() type=<%s>\n", cbtype);
913 if (!strcasecmp(cbtype, "multipart/alternative")) {
921 * Post callback function for multipart/alternative
923 void fixed_output_post(char *name, char *filename, char *partnum, char *disp,
924 void *content, char *cbtype, size_t length, char *encoding,
927 lprintf(CTDL_DEBUG, "fixed_output_post() type=<%s>\n", cbtype);
928 if (!strcasecmp(cbtype, "multipart/alternative")) {
936 * Inline callback function for mime parser that wants to display text
938 void fixed_output(char *name, char *filename, char *partnum, char *disp,
939 void *content, char *cbtype, size_t length, char *encoding,
946 lprintf(CTDL_DEBUG, "fixed_output() type=<%s>\n", cbtype);
949 * If we're in the middle of a multipart/alternative scope and
950 * we've already printed another section, skip this one.
952 if ( (ma->is_ma == 1) && (ma->did_print == 1) ) {
953 lprintf(CTDL_DEBUG, "Skipping part %s (%s)\n", partnum, cbtype);
958 if ( (!strcasecmp(cbtype, "text/plain"))
959 || (strlen(cbtype)==0) ) {
962 client_write(wptr, length);
963 if (wptr[length-1] != '\n') {
968 else if (!strcasecmp(cbtype, "text/html")) {
969 ptr = html_to_ascii(content, 80, 0);
971 client_write(ptr, wlen);
972 if (ptr[wlen-1] != '\n') {
977 else if (strncasecmp(cbtype, "multipart/", 10)) {
978 cprintf("Part %s: %s (%s) (%ld bytes)\r\n",
979 partnum, filename, cbtype, (long)length);
984 * The client is elegant and sophisticated and wants to be choosy about
985 * MIME content types, so figure out which multipart/alternative part
986 * we're going to send.
988 void choose_preferred(char *name, char *filename, char *partnum, char *disp,
989 void *content, char *cbtype, size_t length, char *encoding,
996 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
997 extract(buf, CC->preferred_formats, i);
998 if (!strcasecmp(buf, cbtype)) {
999 strcpy(ma->chosen_part, partnum);
1006 * Now that we've chosen our preferred part, output it.
1008 void output_preferred(char *name, char *filename, char *partnum, char *disp,
1009 void *content, char *cbtype, size_t length, char *encoding,
1014 int add_newline = 0;
1017 /* This is not the MIME part you're looking for... */
1018 if (strcasecmp(partnum, ma->chosen_part)) return;
1020 /* If the content-type of this part is in our preferred formats
1021 * list, we can simply output it verbatim.
1023 for (i=0; i<num_tokens(CC->preferred_formats, '|'); ++i) {
1024 extract(buf, CC->preferred_formats, i);
1025 if (!strcasecmp(buf, cbtype)) {
1026 /* Yeah! Go! W00t!! */
1028 text_content = (char *)content;
1029 if (text_content[length-1] != '\n') {
1033 cprintf("Content-type: %s\n", cbtype);
1034 cprintf("Content-length: %d\n",
1035 (int)(length + add_newline) );
1036 if (strlen(encoding) > 0) {
1037 cprintf("Content-transfer-encoding: %s\n", encoding);
1040 cprintf("Content-transfer-encoding: 7bit\n");
1043 client_write(content, length);
1044 if (add_newline) cprintf("\n");
1049 /* No translations required or possible: output as text/plain */
1050 cprintf("Content-type: text/plain\n\n");
1051 fixed_output(name, filename, partnum, disp, content, cbtype,
1052 length, encoding, cbuserdata);
1057 * Get a message off disk. (returns om_* values found in msgbase.h)
1060 int CtdlOutputMsg(long msg_num, /* message number (local) to fetch */
1061 int mode, /* how would you like that message? */
1062 int headers_only, /* eschew the message body? */
1063 int do_proto, /* do Citadel protocol responses? */
1064 int crlf /* Use CRLF newlines instead of LF? */
1066 struct CtdlMessage *TheMessage;
1069 lprintf(CTDL_DEBUG, "CtdlOutputMsg() msgnum=%ld, mode=%d\n",
1074 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1075 if (do_proto) cprintf("%d Not logged in.\n",
1076 ERROR + NOT_LOGGED_IN);
1077 return(om_not_logged_in);
1080 /* FIXME ... small security issue
1081 * We need to check to make sure the requested message is actually
1082 * in the current room, and set msg_ok to 1 only if it is. This
1083 * functionality is currently missing because I'm in a hurry to replace
1084 * broken production code with nonbroken pre-beta code. :( -- ajc
1087 if (do_proto) cprintf("%d Message %ld is not in this room.\n",
1088 ERROR + MESSAGE_NOT_FOUND, msg_num);
1089 return(om_no_such_msg);
1094 * Fetch the message from disk. If we're in sooper-fast headers
1095 * only mode, request that we don't even bother loading the body
1098 if (headers_only == HEADERS_FAST) {
1099 TheMessage = CtdlFetchMessage(msg_num, 0);
1102 TheMessage = CtdlFetchMessage(msg_num, 1);
1105 if (TheMessage == NULL) {
1106 if (do_proto) cprintf("%d Can't locate msg %ld on disk\n",
1107 ERROR + MESSAGE_NOT_FOUND, msg_num);
1108 return(om_no_such_msg);
1111 retcode = CtdlOutputPreLoadedMsg(
1112 TheMessage, msg_num, mode,
1113 headers_only, do_proto, crlf);
1115 CtdlFreeMessage(TheMessage);
1122 * Get a message off disk. (returns om_* values found in msgbase.h)
1125 int CtdlOutputPreLoadedMsg(struct CtdlMessage *TheMessage,
1127 int mode, /* how would you like that message? */
1128 int headers_only, /* eschew the message body? */
1129 int do_proto, /* do Citadel protocol responses? */
1130 int crlf /* Use CRLF newlines instead of LF? */
1136 char display_name[SIZ];
1138 char *nl; /* newline string */
1140 int subject_found = 0;
1142 /* buffers needed for RFC822 translation */
1149 char datestamp[SIZ];
1152 snprintf(mid, sizeof mid, "%ld", msg_num);
1153 nl = (crlf ? "\r\n" : "\n");
1155 if (!is_valid_message(TheMessage)) {
1156 lprintf(CTDL_ERR, "ERROR: invalid preloaded message for output\n");
1157 return(om_no_such_msg);
1160 /* Are we downloading a MIME component? */
1161 if (mode == MT_DOWNLOAD) {
1162 if (TheMessage->cm_format_type != FMT_RFC822) {
1164 cprintf("%d This is not a MIME message.\n",
1165 ERROR + ILLEGAL_VALUE);
1166 } else if (CC->download_fp != NULL) {
1167 if (do_proto) cprintf(
1168 "%d You already have a download open.\n",
1169 ERROR + RESOURCE_BUSY);
1171 /* Parse the message text component */
1172 mptr = TheMessage->cm_fields['M'];
1173 mime_parser(mptr, NULL,
1174 *mime_download, NULL, NULL,
1176 /* If there's no file open by this time, the requested
1177 * section wasn't found, so print an error
1179 if (CC->download_fp == NULL) {
1180 if (do_proto) cprintf(
1181 "%d Section %s not found.\n",
1182 ERROR + FILE_NOT_FOUND,
1186 return((CC->download_fp != NULL) ? om_ok : om_mime_error);
1189 /* now for the user-mode message reading loops */
1190 if (do_proto) cprintf("%d Message %ld:\n", LISTING_FOLLOWS, msg_num);
1192 /* Does the caller want to skip the headers? */
1193 if (headers_only == HEADERS_NONE) goto START_TEXT;
1195 /* Tell the client which format type we're using. */
1196 if ( (mode == MT_CITADEL) && (do_proto) ) {
1197 cprintf("type=%d\n", TheMessage->cm_format_type);
1200 /* nhdr=yes means that we're only displaying headers, no body */
1201 if ( (TheMessage->cm_anon_type == MES_ANONONLY)
1202 && (mode == MT_CITADEL)
1205 cprintf("nhdr=yes\n");
1208 /* begin header processing loop for Citadel message format */
1210 if ((mode == MT_CITADEL) || (mode == MT_MIME)) {
1212 strcpy(display_name, "<unknown>");
1213 if (TheMessage->cm_fields['A']) {
1214 strcpy(buf, TheMessage->cm_fields['A']);
1215 if (TheMessage->cm_anon_type == MES_ANONONLY) {
1216 strcpy(display_name, "****");
1218 else if (TheMessage->cm_anon_type == MES_ANONOPT) {
1219 strcpy(display_name, "anonymous");
1222 strcpy(display_name, buf);
1224 if ((is_room_aide())
1225 && ((TheMessage->cm_anon_type == MES_ANONONLY)
1226 || (TheMessage->cm_anon_type == MES_ANONOPT))) {
1227 size_t tmp = strlen(display_name);
1228 snprintf(&display_name[tmp],
1229 sizeof display_name - tmp,
1234 /* Don't show Internet address for users on the
1235 * local Citadel network.
1238 if (TheMessage->cm_fields['N'] != NULL)
1239 if (strlen(TheMessage->cm_fields['N']) > 0)
1240 if (haschar(TheMessage->cm_fields['N'], '.') == 0) {
1244 /* Now spew the header fields in the order we like them. */
1245 strcpy(allkeys, FORDER);
1246 for (i=0; i<strlen(allkeys); ++i) {
1247 k = (int) allkeys[i];
1249 if ( (TheMessage->cm_fields[k] != NULL)
1250 && (msgkeys[k] != NULL) ) {
1252 if (do_proto) cprintf("%s=%s\n",
1256 else if ((k == 'F') && (suppress_f)) {
1259 /* Masquerade display name if needed */
1261 if (do_proto) cprintf("%s=%s\n",
1263 TheMessage->cm_fields[k]
1272 /* begin header processing loop for RFC822 transfer format */
1277 strcpy(snode, NODENAME);
1278 strcpy(lnode, HUMANNODE);
1279 if (mode == MT_RFC822) {
1280 cprintf("X-UIDL: %ld%s", msg_num, nl);
1281 for (i = 0; i < 256; ++i) {
1282 if (TheMessage->cm_fields[i]) {
1283 mptr = TheMessage->cm_fields[i];
1286 strcpy(luser, mptr);
1287 strcpy(suser, mptr);
1290 "Path:" removed for now because it confuses brain-dead Microsoft shitware
1291 into thinking that mail messages are newsgroup messages instead. When we
1292 add NNTP support back into Citadel we'll have to add code to only output
1293 this field when appropriate.
1294 else if (i == 'P') {
1295 cprintf("Path: %s%s", mptr, nl);
1298 else if (i == 'U') {
1299 cprintf("Subject: %s%s", mptr, nl);
1303 safestrncpy(mid, mptr, sizeof mid);
1305 safestrncpy(lnode, mptr, sizeof lnode);
1307 safestrncpy(fuser, mptr, sizeof fuser);
1309 cprintf("X-Citadel-Room: %s%s",
1312 safestrncpy(snode, mptr, sizeof snode);
1314 cprintf("To: %s%s", mptr, nl);
1315 else if (i == 'T') {
1316 datestring(datestamp, sizeof datestamp,
1317 atol(mptr), DATESTRING_RFC822);
1318 cprintf("Date: %s%s", datestamp, nl);
1322 if (subject_found == 0) {
1323 cprintf("Subject: (no subject)%s", nl);
1327 for (i=0; i<strlen(suser); ++i) {
1328 suser[i] = tolower(suser[i]);
1329 if (!isalnum(suser[i])) suser[i]='_';
1332 if (mode == MT_RFC822) {
1333 if (!strcasecmp(snode, NODENAME)) {
1334 strcpy(snode, FQDN);
1337 /* Construct a fun message id */
1338 cprintf("Message-ID: <%s", mid);
1339 if (strchr(mid, '@')==NULL) {
1340 cprintf("@%s", snode);
1344 if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONONLY)) {
1345 cprintf("From: x@x.org (----)%s", nl);
1347 else if (!is_room_aide() && (TheMessage->cm_anon_type == MES_ANONOPT)) {
1348 cprintf("From: x@x.org (anonymous)%s", nl);
1350 else if (strlen(fuser) > 0) {
1351 cprintf("From: %s (%s)%s", fuser, luser, nl);
1354 cprintf("From: %s@%s (%s)%s", suser, snode, luser, nl);
1357 cprintf("Organization: %s%s", lnode, nl);
1359 /* Blank line signifying RFC822 end-of-headers */
1360 if (TheMessage->cm_format_type != FMT_RFC822) {
1365 /* end header processing loop ... at this point, we're in the text */
1367 if (headers_only == HEADERS_FAST) goto DONE;
1368 mptr = TheMessage->cm_fields['M'];
1370 /* Tell the client about the MIME parts in this message */
1371 if (TheMessage->cm_format_type == FMT_RFC822) {
1372 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1373 mime_parser(mptr, NULL,
1379 else if (mode == MT_RFC822) { /* unparsed RFC822 dump */
1380 /* FIXME ... we have to put some code in here to avoid
1381 * printing duplicate header information when both
1382 * Citadel and RFC822 headers exist. Preference should
1383 * probably be given to the RFC822 headers.
1385 int done_rfc822_hdrs = 0;
1386 while (ch=*(mptr++), ch!=0) {
1391 if (!done_rfc822_hdrs) {
1392 if (headers_only != HEADERS_NONE) {
1397 if (headers_only != HEADERS_ONLY) {
1401 if ((*(mptr) == 13) || (*(mptr) == 10)) {
1402 done_rfc822_hdrs = 1;
1406 if (done_rfc822_hdrs) {
1407 if (headers_only != HEADERS_NONE) {
1412 if (headers_only != HEADERS_ONLY) {
1416 if ((*mptr == 13) || (*mptr == 10)) {
1417 done_rfc822_hdrs = 1;
1425 if (headers_only == HEADERS_ONLY) {
1429 /* signify start of msg text */
1430 if ( (mode == MT_CITADEL) || (mode == MT_MIME) ) {
1431 if (do_proto) cprintf("text\n");
1434 /* If the format type on disk is 1 (fixed-format), then we want
1435 * everything to be output completely literally ... regardless of
1436 * what message transfer format is in use.
1438 if (TheMessage->cm_format_type == FMT_FIXED) {
1439 if (mode == MT_MIME) {
1440 cprintf("Content-type: text/plain\n\n");
1443 while (ch = *mptr++, ch > 0) {
1446 if ((ch == 10) || (strlen(buf) > 250)) {
1447 cprintf("%s%s", buf, nl);
1450 buf[strlen(buf) + 1] = 0;
1451 buf[strlen(buf)] = ch;
1454 if (strlen(buf) > 0)
1455 cprintf("%s%s", buf, nl);
1458 /* If the message on disk is format 0 (Citadel vari-format), we
1459 * output using the formatter at 80 columns. This is the final output
1460 * form if the transfer format is RFC822, but if the transfer format
1461 * is Citadel proprietary, it'll still work, because the indentation
1462 * for new paragraphs is correct and the client will reformat the
1463 * message to the reader's screen width.
1465 if (TheMessage->cm_format_type == FMT_CITADEL) {
1466 if (mode == MT_MIME) {
1467 cprintf("Content-type: text/x-citadel-variformat\n\n");
1469 memfmout(80, mptr, 0, nl);
1472 /* If the message on disk is format 4 (MIME), we've gotta hand it
1473 * off to the MIME parser. The client has already been told that
1474 * this message is format 1 (fixed format), so the callback function
1475 * we use will display those parts as-is.
1477 if (TheMessage->cm_format_type == FMT_RFC822) {
1478 CtdlAllocUserData(SYM_MA_INFO, sizeof(struct ma_info));
1479 memset(ma, 0, sizeof(struct ma_info));
1481 if (mode == MT_MIME) {
1482 strcpy(ma->chosen_part, "1");
1483 mime_parser(mptr, NULL,
1484 *choose_preferred, *fixed_output_pre,
1485 *fixed_output_post, NULL, 0);
1486 mime_parser(mptr, NULL,
1487 *output_preferred, NULL, NULL, NULL, 0);
1490 mime_parser(mptr, NULL,
1491 *fixed_output, *fixed_output_pre,
1492 *fixed_output_post, NULL, 0);
1496 DONE: /* now we're done */
1497 if (do_proto) cprintf("000\n");
1504 * display a message (mode 0 - Citadel proprietary)
1506 void cmd_msg0(char *cmdbuf)
1509 int headers_only = HEADERS_ALL;
1511 msgid = extract_long(cmdbuf, 0);
1512 headers_only = extract_int(cmdbuf, 1);
1514 CtdlOutputMsg(msgid, MT_CITADEL, headers_only, 1, 0);
1520 * display a message (mode 2 - RFC822)
1522 void cmd_msg2(char *cmdbuf)
1525 int headers_only = HEADERS_ALL;
1527 msgid = extract_long(cmdbuf, 0);
1528 headers_only = extract_int(cmdbuf, 1);
1530 CtdlOutputMsg(msgid, MT_RFC822, headers_only, 1, 1);
1536 * display a message (mode 3 - IGnet raw format - internal programs only)
1538 void cmd_msg3(char *cmdbuf)
1541 struct CtdlMessage *msg;
1544 if (CC->internal_pgm == 0) {
1545 cprintf("%d This command is for internal programs only.\n",
1546 ERROR + HIGHER_ACCESS_REQUIRED);
1550 msgnum = extract_long(cmdbuf, 0);
1551 msg = CtdlFetchMessage(msgnum, 1);
1553 cprintf("%d Message %ld not found.\n",
1554 ERROR + MESSAGE_NOT_FOUND, msgnum);
1558 serialize_message(&smr, msg);
1559 CtdlFreeMessage(msg);
1562 cprintf("%d Unable to serialize message\n",
1563 ERROR + INTERNAL_ERROR);
1567 cprintf("%d %ld\n", BINARY_FOLLOWS, (long)smr.len);
1568 client_write(smr.ser, smr.len);
1575 * Display a message using MIME content types
1577 void cmd_msg4(char *cmdbuf)
1581 msgid = extract_long(cmdbuf, 0);
1582 CtdlOutputMsg(msgid, MT_MIME, 0, 1, 0);
1588 * Client tells us its preferred message format(s)
1590 void cmd_msgp(char *cmdbuf)
1592 safestrncpy(CC->preferred_formats, cmdbuf,
1593 sizeof(CC->preferred_formats));
1594 cprintf("%d ok\n", CIT_OK);
1599 * Open a component of a MIME message as a download file
1601 void cmd_opna(char *cmdbuf)
1605 CtdlAllocUserData(SYM_DESIRED_SECTION, SIZ);
1607 msgid = extract_long(cmdbuf, 0);
1608 extract(desired_section, cmdbuf, 1);
1610 CtdlOutputMsg(msgid, MT_DOWNLOAD, 0, 1, 1);
1615 * Save a message pointer into a specified room
1616 * (Returns 0 for success, nonzero for failure)
1617 * roomname may be NULL to use the current room
1619 int CtdlSaveMsgPointerInRoom(char *roomname, long msgid, int flags) {
1621 char hold_rm[ROOMNAMELEN];
1622 struct cdbdata *cdbfr;
1625 long highest_msg = 0L;
1626 struct CtdlMessage *msg = NULL;
1628 lprintf(CTDL_DEBUG, "CtdlSaveMsgPointerInRoom(%s, %ld, %d)\n",
1629 roomname, msgid, flags);
1631 strcpy(hold_rm, CC->room.QRname);
1633 /* We may need to check to see if this message is real */
1634 if ( (flags & SM_VERIFY_GOODNESS)
1635 || (flags & SM_DO_REPL_CHECK)
1637 msg = CtdlFetchMessage(msgid, 1);
1638 if (msg == NULL) return(ERROR + ILLEGAL_VALUE);
1641 /* Perform replication checks if necessary */
1642 if ( (flags & SM_DO_REPL_CHECK) && (msg != NULL) ) {
1644 if (getroom(&CC->room,
1645 ((roomname != NULL) ? roomname : CC->room.QRname) )
1647 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1648 if (msg != NULL) CtdlFreeMessage(msg);
1649 return(ERROR + ROOM_NOT_FOUND);
1652 if (ReplicationChecks(msg) != 0) {
1653 getroom(&CC->room, hold_rm);
1654 if (msg != NULL) CtdlFreeMessage(msg);
1655 lprintf(CTDL_DEBUG, "Did replication, and newer exists\n");
1660 /* Now the regular stuff */
1661 if (lgetroom(&CC->room,
1662 ((roomname != NULL) ? roomname : CC->room.QRname) )
1664 lprintf(CTDL_ERR, "No such room <%s>\n", roomname);
1665 if (msg != NULL) CtdlFreeMessage(msg);
1666 return(ERROR + ROOM_NOT_FOUND);
1669 cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
1670 if (cdbfr == NULL) {
1674 msglist = malloc(cdbfr->len);
1675 if (msglist == NULL)
1676 lprintf(CTDL_ALERT, "ERROR malloc msglist!\n");
1677 num_msgs = cdbfr->len / sizeof(long);
1678 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1683 /* Make sure the message doesn't already exist in this room. It
1684 * is absolutely taboo to have more than one reference to the same
1685 * message in a room.
1687 if (num_msgs > 0) for (i=0; i<num_msgs; ++i) {
1688 if (msglist[i] == msgid) {
1689 lputroom(&CC->room); /* unlock the room */
1690 getroom(&CC->room, hold_rm);
1691 if (msg != NULL) CtdlFreeMessage(msg);
1693 return(ERROR + ALREADY_EXISTS);
1697 /* Now add the new message */
1699 msglist = realloc(msglist,
1700 (num_msgs * sizeof(long)));
1702 if (msglist == NULL) {
1703 lprintf(CTDL_ALERT, "ERROR: can't realloc message list!\n");
1705 msglist[num_msgs - 1] = msgid;
1707 /* Sort the message list, so all the msgid's are in order */
1708 num_msgs = sort_msglist(msglist, num_msgs);
1710 /* Determine the highest message number */
1711 highest_msg = msglist[num_msgs - 1];
1713 /* Write it back to disk. */
1714 cdb_store(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long),
1715 msglist, num_msgs * sizeof(long));
1717 /* Free up the memory we used. */
1720 /* Update the highest-message pointer and unlock the room. */
1721 CC->room.QRhighest = highest_msg;
1722 lputroom(&CC->room);
1723 getroom(&CC->room, hold_rm);
1725 /* Bump the reference count for this message. */
1726 if ((flags & SM_DONT_BUMP_REF)==0) {
1727 AdjRefCount(msgid, +1);
1730 /* Return success. */
1731 if (msg != NULL) CtdlFreeMessage(msg);
1738 * Message base operation to send a message to the master file
1739 * (returns new message number)
1741 * This is the back end for CtdlSubmitMsg() and should not be directly
1742 * called by server-side modules.
1745 long send_message(struct CtdlMessage *msg) {
1753 /* Get a new message number */
1754 newmsgid = get_new_message_number();
1755 snprintf(msgidbuf, sizeof msgidbuf, "%ld@%s", newmsgid, config.c_fqdn);
1757 /* Generate an ID if we don't have one already */
1758 if (msg->cm_fields['I']==NULL) {
1759 msg->cm_fields['I'] = strdup(msgidbuf);
1762 /* If the message is big, set its body aside for storage elsewhere */
1763 if (msg->cm_fields['M'] != NULL) {
1764 if (strlen(msg->cm_fields['M']) > BIGMSG) {
1766 holdM = msg->cm_fields['M'];
1767 msg->cm_fields['M'] = NULL;
1771 /* Serialize our data structure for storage in the database */
1772 serialize_message(&smr, msg);
1775 msg->cm_fields['M'] = holdM;
1779 cprintf("%d Unable to serialize message\n",
1780 ERROR + INTERNAL_ERROR);
1784 /* Write our little bundle of joy into the message base */
1785 if (cdb_store(CDB_MSGMAIN, &newmsgid, sizeof(long),
1786 smr.ser, smr.len) < 0) {
1787 lprintf(CTDL_ERR, "Can't store message\n");
1791 cdb_store(CDB_BIGMSGS, &newmsgid, sizeof(long),
1792 holdM, strlen(holdM) );
1797 /* Free the memory we used for the serialized message */
1800 /* Return the *local* message ID to the caller
1801 * (even if we're storing an incoming network message)
1809 * Serialize a struct CtdlMessage into the format used on disk and network.
1811 * This function loads up a "struct ser_ret" (defined in server.h) which
1812 * contains the length of the serialized message and a pointer to the
1813 * serialized message in memory. THE LATTER MUST BE FREED BY THE CALLER.
1815 void serialize_message(struct ser_ret *ret, /* return values */
1816 struct CtdlMessage *msg) /* unserialized msg */
1820 static char *forder = FORDER;
1822 if (is_valid_message(msg) == 0) return; /* self check */
1825 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL)
1826 ret->len = ret->len +
1827 strlen(msg->cm_fields[(int)forder[i]]) + 2;
1829 lprintf(CTDL_DEBUG, "serialize_message() calling malloc(%ld)\n", (long)ret->len);
1830 ret->ser = malloc(ret->len);
1831 if (ret->ser == NULL) {
1837 ret->ser[1] = msg->cm_anon_type;
1838 ret->ser[2] = msg->cm_format_type;
1841 for (i=0; i<26; ++i) if (msg->cm_fields[(int)forder[i]] != NULL) {
1842 ret->ser[wlen++] = (char)forder[i];
1843 strcpy(&ret->ser[wlen], msg->cm_fields[(int)forder[i]]);
1844 wlen = wlen + strlen(msg->cm_fields[(int)forder[i]]) + 1;
1846 if (ret->len != wlen) lprintf(CTDL_ERR, "ERROR: len=%ld wlen=%ld\n",
1847 (long)ret->len, (long)wlen);
1855 * Back end for the ReplicationChecks() function
1857 void check_repl(long msgnum, void *userdata) {
1858 struct CtdlMessage *msg;
1859 time_t timestamp = (-1L);
1861 lprintf(CTDL_DEBUG, "check_repl() found message %ld\n", msgnum);
1862 msg = CtdlFetchMessage(msgnum, 1);
1863 if (msg == NULL) return;
1864 if (msg->cm_fields['T'] != NULL) {
1865 timestamp = atol(msg->cm_fields['T']);
1867 CtdlFreeMessage(msg);
1869 if (timestamp > msg_repl->highest) {
1870 msg_repl->highest = timestamp; /* newer! */
1871 lprintf(CTDL_DEBUG, "newer!\n");
1874 lprintf(CTDL_DEBUG, "older!\n");
1876 /* Existing isn't newer? Then delete the old one(s). */
1877 CtdlDeleteMessages(CC->room.QRname, msgnum, "");
1882 * Check to see if any messages already exist which carry the same Extended ID
1886 * -> With older timestamps: delete them and return 0. Message will be saved.
1887 * -> With newer timestamps: return 1. Message save will be aborted.
1889 int ReplicationChecks(struct CtdlMessage *msg) {
1890 struct CtdlMessage *template;
1893 lprintf(CTDL_DEBUG, "ReplicationChecks() started\n");
1894 /* No extended id? Don't do anything. */
1895 if (msg->cm_fields['E'] == NULL) return 0;
1896 if (strlen(msg->cm_fields['E']) == 0) return 0;
1897 lprintf(CTDL_DEBUG, "Extended ID: <%s>\n", msg->cm_fields['E']);
1899 CtdlAllocUserData(SYM_REPL, sizeof(struct repl));
1900 strcpy(msg_repl->extended_id, msg->cm_fields['E']);
1901 msg_repl->highest = atol(msg->cm_fields['T']);
1903 template = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1904 memset(template, 0, sizeof(struct CtdlMessage));
1905 template->cm_fields['E'] = strdup(msg->cm_fields['E']);
1907 CtdlForEachMessage(MSGS_ALL, 0L, NULL, template, check_repl, NULL);
1909 /* If a newer message exists with the same Extended ID, abort
1912 if (msg_repl->highest > atol(msg->cm_fields['T']) ) {
1916 CtdlFreeMessage(template);
1917 lprintf(CTDL_DEBUG, "ReplicationChecks() returning %d\n", abort_this);
1925 * Save a message to disk and submit it into the delivery system.
1927 long CtdlSubmitMsg(struct CtdlMessage *msg, /* message to save */
1928 struct recptypes *recps, /* recipients (if mail) */
1929 char *force /* force a particular room? */
1932 char hold_rm[ROOMNAMELEN];
1933 char actual_rm[ROOMNAMELEN];
1934 char force_room[ROOMNAMELEN];
1935 char content_type[SIZ]; /* We have to learn this */
1936 char recipient[SIZ];
1939 struct ctdluser userbuf;
1941 struct MetaData smi;
1942 FILE *network_fp = NULL;
1943 static int seqnum = 1;
1944 struct CtdlMessage *imsg = NULL;
1947 char *hold_R, *hold_D;
1949 lprintf(CTDL_DEBUG, "CtdlSubmitMsg() called\n");
1950 if (is_valid_message(msg) == 0) return(-1); /* self check */
1952 /* If this message has no timestamp, we take the liberty of
1953 * giving it one, right now.
1955 if (msg->cm_fields['T'] == NULL) {
1956 lprintf(CTDL_DEBUG, "Generating timestamp\n");
1957 snprintf(aaa, sizeof aaa, "%ld", (long)time(NULL));
1958 msg->cm_fields['T'] = strdup(aaa);
1961 /* If this message has no path, we generate one.
1963 if (msg->cm_fields['P'] == NULL) {
1964 lprintf(CTDL_DEBUG, "Generating path\n");
1965 if (msg->cm_fields['A'] != NULL) {
1966 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
1967 for (a=0; a<strlen(msg->cm_fields['P']); ++a) {
1968 if (isspace(msg->cm_fields['P'][a])) {
1969 msg->cm_fields['P'][a] = ' ';
1974 msg->cm_fields['P'] = strdup("unknown");
1978 if (force == NULL) {
1979 strcpy(force_room, "");
1982 strcpy(force_room, force);
1985 /* Learn about what's inside, because it's what's inside that counts */
1986 lprintf(CTDL_DEBUG, "Learning what's inside\n");
1987 if (msg->cm_fields['M'] == NULL) {
1988 lprintf(CTDL_ERR, "ERROR: attempt to save message with NULL body\n");
1992 switch (msg->cm_format_type) {
1994 strcpy(content_type, "text/x-citadel-variformat");
1997 strcpy(content_type, "text/plain");
2000 strcpy(content_type, "text/plain");
2001 /* advance past header fields */
2002 mptr = msg->cm_fields['M'];
2005 if (!strncasecmp(mptr, "Content-type: ", 14)) {
2006 safestrncpy(content_type, mptr,
2007 sizeof(content_type));
2008 strcpy(content_type, &content_type[14]);
2009 for (a = 0; a < strlen(content_type); ++a)
2010 if ((content_type[a] == ';')
2011 || (content_type[a] == ' ')
2012 || (content_type[a] == 13)
2013 || (content_type[a] == 10))
2014 content_type[a] = 0;
2021 /* Goto the correct room */
2022 lprintf(CTDL_DEBUG, "Selected room %s\n", (recps) ? CC->room.QRname : SENTITEMS);
2023 strcpy(hold_rm, CC->room.QRname);
2024 strcpy(actual_rm, CC->room.QRname);
2025 if (recps != NULL) {
2026 strcpy(actual_rm, SENTITEMS);
2029 /* If the user is a twit, move to the twit room for posting */
2030 lprintf(CTDL_DEBUG, "Handling twit stuff: %s\n",
2031 (CC->user.axlevel == 2) ? config.c_twitroom : "OK");
2033 if (CC->user.axlevel == 2) {
2034 strcpy(hold_rm, actual_rm);
2035 strcpy(actual_rm, config.c_twitroom);
2039 /* ...or if this message is destined for Aide> then go there. */
2040 if (strlen(force_room) > 0) {
2041 strcpy(actual_rm, force_room);
2044 lprintf(CTDL_DEBUG, "Final selection: %s\n", actual_rm);
2045 if (strcasecmp(actual_rm, CC->room.QRname)) {
2046 getroom(&CC->room, actual_rm);
2050 * If this message has no O (room) field, generate one.
2052 if (msg->cm_fields['O'] == NULL) {
2053 msg->cm_fields['O'] = strdup(CC->room.QRname);
2056 /* Perform "before save" hooks (aborting if any return nonzero) */
2057 lprintf(CTDL_DEBUG, "Performing before-save hooks\n");
2058 if (PerformMessageHooks(msg, EVT_BEFORESAVE) > 0) return(-1);
2060 /* If this message has an Extended ID, perform replication checks */
2061 lprintf(CTDL_DEBUG, "Performing replication checks\n");
2062 if (ReplicationChecks(msg) > 0) return(-1);
2064 /* Save it to disk */
2065 lprintf(CTDL_DEBUG, "Saving to disk\n");
2066 newmsgid = send_message(msg);
2067 if (newmsgid <= 0L) return(-1);
2069 /* Write a supplemental message info record. This doesn't have to
2070 * be a critical section because nobody else knows about this message
2073 lprintf(CTDL_DEBUG, "Creating MetaData record\n");
2074 memset(&smi, 0, sizeof(struct MetaData));
2075 smi.meta_msgnum = newmsgid;
2076 smi.meta_refcount = 0;
2077 safestrncpy(smi.meta_content_type, content_type, 64);
2080 /* Now figure out where to store the pointers */
2081 lprintf(CTDL_DEBUG, "Storing pointers\n");
2083 /* If this is being done by the networker delivering a private
2084 * message, we want to BYPASS saving the sender's copy (because there
2085 * is no local sender; it would otherwise go to the Trashcan).
2087 if ((!CC->internal_pgm) || (recps == NULL)) {
2088 if (CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0) != 0) {
2089 lprintf(CTDL_ERR, "ERROR saving message pointer!\n");
2090 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2094 /* For internet mail, drop a copy in the outbound queue room */
2096 if (recps->num_internet > 0) {
2097 CtdlSaveMsgPointerInRoom(SMTP_SPOOLOUT_ROOM, newmsgid, 0);
2100 /* If other rooms are specified, drop them there too. */
2102 if (recps->num_room > 0)
2103 for (i=0; i<num_tokens(recps->recp_room, '|'); ++i) {
2104 extract(recipient, recps->recp_room, i);
2105 lprintf(CTDL_DEBUG, "Delivering to local room <%s>\n", recipient);
2106 CtdlSaveMsgPointerInRoom(recipient, newmsgid, 0);
2109 /* Bump this user's messages posted counter. */
2110 lprintf(CTDL_DEBUG, "Updating user\n");
2111 lgetuser(&CC->user, CC->curr_user);
2112 CC->user.posted = CC->user.posted + 1;
2113 lputuser(&CC->user);
2115 /* If this is private, local mail, make a copy in the
2116 * recipient's mailbox and bump the reference count.
2119 if (recps->num_local > 0)
2120 for (i=0; i<num_tokens(recps->recp_local, '|'); ++i) {
2121 extract(recipient, recps->recp_local, i);
2122 lprintf(CTDL_DEBUG, "Delivering private local mail to <%s>\n",
2124 if (getuser(&userbuf, recipient) == 0) {
2125 MailboxName(actual_rm, sizeof actual_rm, &userbuf, MAILROOM);
2126 CtdlSaveMsgPointerInRoom(actual_rm, newmsgid, 0);
2127 BumpNewMailCounter(userbuf.usernum);
2130 lprintf(CTDL_DEBUG, "No user <%s>\n", recipient);
2131 CtdlSaveMsgPointerInRoom(config.c_aideroom, newmsgid, 0);
2135 /* Perform "after save" hooks */
2136 lprintf(CTDL_DEBUG, "Performing after-save hooks\n");
2137 PerformMessageHooks(msg, EVT_AFTERSAVE);
2139 /* For IGnet mail, we have to save a new copy into the spooler for
2140 * each recipient, with the R and D fields set to the recipient and
2141 * destination-node. This has two ugly side effects: all other
2142 * recipients end up being unlisted in this recipient's copy of the
2143 * message, and it has to deliver multiple messages to the same
2144 * node. We'll revisit this again in a year or so when everyone has
2145 * a network spool receiver that can handle the new style messages.
2148 if (recps->num_ignet > 0)
2149 for (i=0; i<num_tokens(recps->recp_ignet, '|'); ++i) {
2150 extract(recipient, recps->recp_ignet, i);
2152 hold_R = msg->cm_fields['R'];
2153 hold_D = msg->cm_fields['D'];
2154 msg->cm_fields['R'] = malloc(SIZ);
2155 msg->cm_fields['D'] = malloc(SIZ);
2156 extract_token(msg->cm_fields['R'], recipient, 0, '@');
2157 extract_token(msg->cm_fields['D'], recipient, 1, '@');
2159 serialize_message(&smr, msg);
2161 snprintf(aaa, sizeof aaa,
2162 "./network/spoolin/netmail.%04lx.%04x.%04x",
2163 (long) getpid(), CC->cs_pid, ++seqnum);
2164 network_fp = fopen(aaa, "wb+");
2165 if (network_fp != NULL) {
2166 fwrite(smr.ser, smr.len, 1, network_fp);
2172 free(msg->cm_fields['R']);
2173 free(msg->cm_fields['D']);
2174 msg->cm_fields['R'] = hold_R;
2175 msg->cm_fields['D'] = hold_D;
2178 /* Go back to the room we started from */
2179 lprintf(CTDL_DEBUG, "Returning to original room %s\n", hold_rm);
2180 if (strcasecmp(hold_rm, CC->room.QRname))
2181 getroom(&CC->room, hold_rm);
2183 /* For internet mail, generate delivery instructions.
2184 * Yes, this is recursive. Deal with it. Infinite recursion does
2185 * not happen because the delivery instructions message does not
2186 * contain a recipient.
2189 if (recps->num_internet > 0) {
2190 lprintf(CTDL_DEBUG, "Generating delivery instructions\n");
2191 instr = malloc(SIZ * 2);
2192 snprintf(instr, SIZ * 2,
2193 "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n"
2195 SPOOLMIME, newmsgid, (long)time(NULL),
2196 msg->cm_fields['A'], msg->cm_fields['N']
2199 for (i=0; i<num_tokens(recps->recp_internet, '|'); ++i) {
2200 size_t tmp = strlen(instr);
2201 extract(recipient, recps->recp_internet, i);
2202 snprintf(&instr[tmp], SIZ * 2 - tmp,
2203 "remote|%s|0||\n", recipient);
2206 imsg = malloc(sizeof(struct CtdlMessage));
2207 memset(imsg, 0, sizeof(struct CtdlMessage));
2208 imsg->cm_magic = CTDLMESSAGE_MAGIC;
2209 imsg->cm_anon_type = MES_NORMAL;
2210 imsg->cm_format_type = FMT_RFC822;
2211 imsg->cm_fields['A'] = strdup("Citadel");
2212 imsg->cm_fields['M'] = instr;
2213 CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM);
2214 CtdlFreeMessage(imsg);
2223 * Convenience function for generating small administrative messages.
2225 void quickie_message(char *from, char *to, char *room, char *text,
2226 int format_type, char *subject)
2228 struct CtdlMessage *msg;
2229 struct recptypes *recp = NULL;
2231 msg = malloc(sizeof(struct CtdlMessage));
2232 memset(msg, 0, sizeof(struct CtdlMessage));
2233 msg->cm_magic = CTDLMESSAGE_MAGIC;
2234 msg->cm_anon_type = MES_NORMAL;
2235 msg->cm_format_type = format_type;
2236 msg->cm_fields['A'] = strdup(from);
2237 if (room != NULL) msg->cm_fields['O'] = strdup(room);
2238 msg->cm_fields['N'] = strdup(NODENAME);
2240 msg->cm_fields['R'] = strdup(to);
2241 recp = validate_recipients(to);
2243 if (subject != NULL) {
2244 msg->cm_fields['U'] = strdup(subject);
2246 msg->cm_fields['M'] = strdup(text);
2248 CtdlSubmitMsg(msg, recp, room);
2249 CtdlFreeMessage(msg);
2250 if (recp != NULL) free(recp);
2256 * Back end function used by CtdlMakeMessage() and similar functions
2258 char *CtdlReadMessageBody(char *terminator, /* token signalling EOT */
2259 size_t maxlen, /* maximum message length */
2260 char *exist, /* if non-null, append to it;
2261 exist is ALWAYS freed */
2262 int crlf /* CRLF newlines instead of LF */
2266 size_t message_len = 0;
2267 size_t buffer_len = 0;
2273 if (exist == NULL) {
2280 message_len = strlen(exist);
2281 buffer_len = message_len + 4096;
2282 m = realloc(exist, buffer_len);
2289 /* flush the input if we have nowhere to store it */
2294 /* read in the lines of message text one by one */
2296 if (client_gets(buf) < 1) finished = 1;
2297 if (!strcmp(buf, terminator)) finished = 1;
2299 strcat(buf, "\r\n");
2305 if ( (!flushing) && (!finished) ) {
2306 /* Measure the line */
2307 linelen = strlen(buf);
2309 /* augment the buffer if we have to */
2310 if ((message_len + linelen) >= buffer_len) {
2311 ptr = realloc(m, (buffer_len * 2) );
2312 if (ptr == NULL) { /* flush if can't allocate */
2315 buffer_len = (buffer_len * 2);
2317 lprintf(CTDL_DEBUG, "buffer_len is now %ld\n", (long)buffer_len);
2321 /* Add the new line to the buffer. NOTE: this loop must avoid
2322 * using functions like strcat() and strlen() because they
2323 * traverse the entire buffer upon every call, and doing that
2324 * for a multi-megabyte message slows it down beyond usability.
2326 strcpy(&m[message_len], buf);
2327 message_len += linelen;
2330 /* if we've hit the max msg length, flush the rest */
2331 if (message_len >= maxlen) flushing = 1;
2333 } while (!finished);
2341 * Build a binary message to be saved on disk.
2342 * (NOTE: if you supply 'preformatted_text', the buffer you give it
2343 * will become part of the message. This means you are no longer
2344 * responsible for managing that memory -- it will be freed along with
2345 * the rest of the fields when CtdlFreeMessage() is called.)
2348 struct CtdlMessage *CtdlMakeMessage(
2349 struct ctdluser *author, /* author's user structure */
2350 char *recipient, /* NULL if it's not mail */
2351 char *room, /* room where it's going */
2352 int type, /* see MES_ types in header file */
2353 int format_type, /* variformat, plain text, MIME... */
2354 char *fake_name, /* who we're masquerading as */
2355 char *subject, /* Subject (optional) */
2356 char *preformatted_text /* ...or NULL to read text from client */
2358 char dest_node[SIZ];
2360 struct CtdlMessage *msg;
2362 msg = malloc(sizeof(struct CtdlMessage));
2363 memset(msg, 0, sizeof(struct CtdlMessage));
2364 msg->cm_magic = CTDLMESSAGE_MAGIC;
2365 msg->cm_anon_type = type;
2366 msg->cm_format_type = format_type;
2368 /* Don't confuse the poor folks if it's not routed mail. */
2369 strcpy(dest_node, "");
2373 snprintf(buf, sizeof buf, "cit%ld", author->usernum); /* Path */
2374 msg->cm_fields['P'] = strdup(buf);
2376 snprintf(buf, sizeof buf, "%ld", (long)time(NULL)); /* timestamp */
2377 msg->cm_fields['T'] = strdup(buf);
2379 if (fake_name[0]) /* author */
2380 msg->cm_fields['A'] = strdup(fake_name);
2382 msg->cm_fields['A'] = strdup(author->fullname);
2384 if (CC->room.QRflags & QR_MAILBOX) { /* room */
2385 msg->cm_fields['O'] = strdup(&CC->room.QRname[11]);
2388 msg->cm_fields['O'] = strdup(CC->room.QRname);
2391 msg->cm_fields['N'] = strdup(NODENAME); /* nodename */
2392 msg->cm_fields['H'] = strdup(HUMANNODE); /* hnodename */
2394 if (recipient[0] != 0) {
2395 msg->cm_fields['R'] = strdup(recipient);
2397 if (dest_node[0] != 0) {
2398 msg->cm_fields['D'] = strdup(dest_node);
2401 if ( (author == &CC->user) && (strlen(CC->cs_inet_email) > 0) ) {
2402 msg->cm_fields['F'] = strdup(CC->cs_inet_email);
2405 if (subject != NULL) {
2407 if (strlen(subject) > 0) {
2408 msg->cm_fields['U'] = strdup(subject);
2412 if (preformatted_text != NULL) {
2413 msg->cm_fields['M'] = preformatted_text;
2416 msg->cm_fields['M'] = CtdlReadMessageBody("000",
2417 config.c_maxmsglen, NULL, 0);
2425 * Check to see whether we have permission to post a message in the current
2426 * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
2427 * returns 0 on success.
2429 int CtdlDoIHavePermissionToPostInThisRoom(char *errmsgbuf, size_t n) {
2431 if (!(CC->logged_in)) {
2432 snprintf(errmsgbuf, n, "Not logged in.");
2433 return (ERROR + NOT_LOGGED_IN);
2436 if ((CC->user.axlevel < 2)
2437 && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
2438 snprintf(errmsgbuf, n, "Need to be validated to enter "
2439 "(except in %s> to sysop)", MAILROOM);
2440 return (ERROR + HIGHER_ACCESS_REQUIRED);
2443 if ((CC->user.axlevel < 4)
2444 && (CC->room.QRflags & QR_NETWORK)) {
2445 snprintf(errmsgbuf, n, "Need net privileges to enter here.");
2446 return (ERROR + HIGHER_ACCESS_REQUIRED);
2449 if ((CC->user.axlevel < 6)
2450 && (CC->room.QRflags & QR_READONLY)) {
2451 snprintf(errmsgbuf, n, "Sorry, this is a read-only room.");
2452 return (ERROR + HIGHER_ACCESS_REQUIRED);
2455 strcpy(errmsgbuf, "Ok");
2461 * Check to see if the specified user has Internet mail permission
2462 * (returns nonzero if permission is granted)
2464 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
2466 /* Globally enabled? */
2467 if (config.c_restrict == 0) return(1);
2469 /* User flagged ok? */
2470 if (who->flags & US_INTERNET) return(2);
2472 /* Aide level access? */
2473 if (who->axlevel >= 6) return(3);
2475 /* No mail for you! */
2482 * Validate recipients, count delivery types and errors, and handle aliasing
2483 * FIXME check for dupes!!!!!
2485 struct recptypes *validate_recipients(char *recipients) {
2486 struct recptypes *ret;
2487 char this_recp[SIZ];
2488 char this_recp_cooked[SIZ];
2494 struct ctdluser tempUS;
2495 struct ctdlroom tempQR;
2498 ret = (struct recptypes *) malloc(sizeof(struct recptypes));
2499 if (ret == NULL) return(NULL);
2500 memset(ret, 0, sizeof(struct recptypes));
2503 ret->num_internet = 0;
2508 if (recipients == NULL) {
2511 else if (strlen(recipients) == 0) {
2515 /* Change all valid separator characters to commas */
2516 for (i=0; i<strlen(recipients); ++i) {
2517 if ((recipients[i] == ';') || (recipients[i] == '|')) {
2518 recipients[i] = ',';
2523 num_recps = num_tokens(recipients, ',');
2526 if (num_recps > 0) for (i=0; i<num_recps; ++i) {
2527 extract_token(this_recp, recipients, i, ',');
2529 lprintf(CTDL_DEBUG, "Evaluating recipient #%d <%s>\n", i, this_recp);
2530 mailtype = alias(this_recp);
2531 mailtype = alias(this_recp);
2532 mailtype = alias(this_recp);
2533 for (j=0; j<=strlen(this_recp); ++j) {
2534 if (this_recp[j]=='_') {
2535 this_recp_cooked[j] = ' ';
2538 this_recp_cooked[j] = this_recp[j];
2544 if (!strcasecmp(this_recp, "sysop")) {
2546 strcpy(this_recp, config.c_aideroom);
2547 if (strlen(ret->recp_room) > 0) {
2548 strcat(ret->recp_room, "|");
2550 strcat(ret->recp_room, this_recp);
2552 else if (getuser(&tempUS, this_recp) == 0) {
2554 strcpy(this_recp, tempUS.fullname);
2555 if (strlen(ret->recp_local) > 0) {
2556 strcat(ret->recp_local, "|");
2558 strcat(ret->recp_local, this_recp);
2560 else if (getuser(&tempUS, this_recp_cooked) == 0) {
2562 strcpy(this_recp, tempUS.fullname);
2563 if (strlen(ret->recp_local) > 0) {
2564 strcat(ret->recp_local, "|");
2566 strcat(ret->recp_local, this_recp);
2568 else if ( (!strncasecmp(this_recp, "room_", 5))
2569 && (!getroom(&tempQR, &this_recp_cooked[5])) ) {
2571 if (strlen(ret->recp_room) > 0) {
2572 strcat(ret->recp_room, "|");
2574 strcat(ret->recp_room, &this_recp_cooked[5]);
2582 /* Yes, you're reading this correctly: if the target
2583 * domain points back to the local system or an attached
2584 * Citadel directory, the address is invalid. That's
2585 * because if the address were valid, we would have
2586 * already translated it to a local address by now.
2588 if (IsDirectory(this_recp)) {
2593 ++ret->num_internet;
2594 if (strlen(ret->recp_internet) > 0) {
2595 strcat(ret->recp_internet, "|");
2597 strcat(ret->recp_internet, this_recp);
2602 if (strlen(ret->recp_ignet) > 0) {
2603 strcat(ret->recp_ignet, "|");
2605 strcat(ret->recp_ignet, this_recp);
2613 if (strlen(ret->errormsg) == 0) {
2614 snprintf(append, sizeof append,
2615 "Invalid recipient: %s",
2619 snprintf(append, sizeof append,
2622 if ( (strlen(ret->errormsg) + strlen(append)) < SIZ) {
2623 strcat(ret->errormsg, append);
2627 if (strlen(ret->display_recp) == 0) {
2628 strcpy(append, this_recp);
2631 snprintf(append, sizeof append, ", %s",
2634 if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
2635 strcat(ret->display_recp, append);
2640 if ((ret->num_local + ret->num_internet + ret->num_ignet +
2641 ret->num_room + ret->num_error) == 0) {
2643 strcpy(ret->errormsg, "No recipients specified.");
2646 lprintf(CTDL_DEBUG, "validate_recipients()\n");
2647 lprintf(CTDL_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
2648 lprintf(CTDL_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
2649 lprintf(CTDL_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
2650 lprintf(CTDL_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
2651 lprintf(CTDL_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
2659 * message entry - mode 0 (normal)
2661 void cmd_ent0(char *entargs)
2665 char masquerade_as[SIZ];
2667 int format_type = 0;
2668 char newusername[SIZ];
2669 struct CtdlMessage *msg;
2673 struct recptypes *valid = NULL;
2676 post = extract_int(entargs, 0);
2677 extract(recp, entargs, 1);
2678 anon_flag = extract_int(entargs, 2);
2679 format_type = extract_int(entargs, 3);
2680 extract(subject, entargs, 4);
2682 /* first check to make sure the request is valid. */
2684 err = CtdlDoIHavePermissionToPostInThisRoom(errmsg, sizeof errmsg);
2686 cprintf("%d %s\n", err, errmsg);
2690 /* Check some other permission type things. */
2693 if (CC->user.axlevel < 6) {
2694 cprintf("%d You don't have permission to masquerade.\n",
2695 ERROR + HIGHER_ACCESS_REQUIRED);
2698 extract(newusername, entargs, 5);
2699 memset(CC->fake_postname, 0, sizeof(CC->fake_postname) );
2700 safestrncpy(CC->fake_postname, newusername,
2701 sizeof(CC->fake_postname) );
2702 cprintf("%d ok\n", CIT_OK);
2705 CC->cs_flags |= CS_POSTING;
2707 /* In the Mail> room we have to behave a little differently --
2708 * make sure the user has specified at least one recipient. Then
2709 * validate the recipient(s).
2711 if ( (CC->room.QRflags & QR_MAILBOX)
2712 && (!strcasecmp(&CC->room.QRname[11], MAILROOM)) ) {
2714 if (CC->user.axlevel < 2) {
2715 strcpy(recp, "sysop");
2718 valid = validate_recipients(recp);
2719 if (valid->num_error > 0) {
2721 ERROR + NO_SUCH_USER, valid->errormsg);
2725 if (valid->num_internet > 0) {
2726 if (CtdlCheckInternetMailPermission(&CC->user)==0) {
2727 cprintf("%d You do not have permission "
2728 "to send Internet mail.\n",
2729 ERROR + HIGHER_ACCESS_REQUIRED);
2735 if ( ( (valid->num_internet + valid->num_ignet) > 0)
2736 && (CC->user.axlevel < 4) ) {
2737 cprintf("%d Higher access required for network mail.\n",
2738 ERROR + HIGHER_ACCESS_REQUIRED);
2743 if ((RESTRICT_INTERNET == 1) && (valid->num_internet > 0)
2744 && ((CC->user.flags & US_INTERNET) == 0)
2745 && (!CC->internal_pgm)) {
2746 cprintf("%d You don't have access to Internet mail.\n",
2747 ERROR + HIGHER_ACCESS_REQUIRED);
2754 /* Is this a room which has anonymous-only or anonymous-option? */
2755 anonymous = MES_NORMAL;
2756 if (CC->room.QRflags & QR_ANONONLY) {
2757 anonymous = MES_ANONONLY;
2759 if (CC->room.QRflags & QR_ANONOPT) {
2760 if (anon_flag == 1) { /* only if the user requested it */
2761 anonymous = MES_ANONOPT;
2765 if ((CC->room.QRflags & QR_MAILBOX) == 0) {
2769 /* If we're only checking the validity of the request, return
2770 * success without creating the message.
2773 cprintf("%d %s\n", CIT_OK,
2774 ((valid != NULL) ? valid->display_recp : "") );
2779 /* Handle author masquerading */
2780 if (CC->fake_postname[0]) {
2781 strcpy(masquerade_as, CC->fake_postname);
2783 else if (CC->fake_username[0]) {
2784 strcpy(masquerade_as, CC->fake_username);
2787 strcpy(masquerade_as, "");
2790 /* Read in the message from the client. */
2791 cprintf("%d send message\n", SEND_LISTING);
2792 msg = CtdlMakeMessage(&CC->user, recp,
2793 CC->room.QRname, anonymous, format_type,
2794 masquerade_as, subject, NULL);
2797 CtdlSubmitMsg(msg, valid, "");
2798 CtdlFreeMessage(msg);
2800 CC->fake_postname[0] = '\0';
2808 * API function to delete messages which match a set of criteria
2809 * (returns the actual number of messages deleted)
2811 int CtdlDeleteMessages(char *room_name, /* which room */
2812 long dmsgnum, /* or "0" for any */
2813 char *content_type /* or "" for any */
2817 struct ctdlroom qrbuf;
2818 struct cdbdata *cdbfr;
2819 long *msglist = NULL;
2820 long *dellist = NULL;
2823 int num_deleted = 0;
2825 struct MetaData smi;
2827 lprintf(CTDL_DEBUG, "CtdlDeleteMessages(%s, %ld, %s)\n",
2828 room_name, dmsgnum, content_type);
2830 /* get room record, obtaining a lock... */
2831 if (lgetroom(&qrbuf, room_name) != 0) {
2832 lprintf(CTDL_ERR, "CtdlDeleteMessages(): Room <%s> not found\n",
2834 return (0); /* room not found */
2836 cdbfr = cdb_fetch(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long));
2838 if (cdbfr != NULL) {
2839 msglist = malloc(cdbfr->len);
2840 dellist = malloc(cdbfr->len);
2841 memcpy(msglist, cdbfr->ptr, cdbfr->len);
2842 num_msgs = cdbfr->len / sizeof(long);
2846 for (i = 0; i < num_msgs; ++i) {
2849 /* Set/clear a bit for each criterion */
2851 if ((dmsgnum == 0L) || (msglist[i] == dmsgnum)) {
2852 delete_this |= 0x01;
2854 if (strlen(content_type) == 0) {
2855 delete_this |= 0x02;
2857 GetMetaData(&smi, msglist[i]);
2858 if (!strcasecmp(smi.meta_content_type,
2860 delete_this |= 0x02;
2864 /* Delete message only if all bits are set */
2865 if (delete_this == 0x03) {
2866 dellist[num_deleted++] = msglist[i];
2871 num_msgs = sort_msglist(msglist, num_msgs);
2872 cdb_store(CDB_MSGLISTS, &qrbuf.QRnumber, sizeof(long),
2873 msglist, (num_msgs * sizeof(long)));
2875 qrbuf.QRhighest = msglist[num_msgs - 1];
2879 /* Go through the messages we pulled out of the index, and decrement
2880 * their reference counts by 1. If this is the only room the message
2881 * was in, the reference count will reach zero and the message will
2882 * automatically be deleted from the database. We do this in a
2883 * separate pass because there might be plug-in hooks getting called,
2884 * and we don't want that happening during an S_ROOMS critical
2887 if (num_deleted) for (i=0; i<num_deleted; ++i) {
2888 PerformDeleteHooks(qrbuf.QRname, dellist[i]);
2889 AdjRefCount(dellist[i], -1);
2892 /* Now free the memory we used, and go away. */
2893 if (msglist != NULL) free(msglist);
2894 if (dellist != NULL) free(dellist);
2895 lprintf(CTDL_DEBUG, "%d message(s) deleted.\n", num_deleted);
2896 return (num_deleted);
2902 * Check whether the current user has permission to delete messages from
2903 * the current room (returns 1 for yes, 0 for no)
2905 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
2906 getuser(&CC->user, CC->curr_user);
2907 if ((CC->user.axlevel < 6)
2908 && (CC->user.usernum != CC->room.QRroomaide)
2909 && ((CC->room.QRflags & QR_MAILBOX) == 0)
2910 && (!(CC->internal_pgm))) {
2919 * Delete message from current room
2921 void cmd_dele(char *delstr)
2926 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom() == 0) {
2927 cprintf("%d Higher access required.\n",
2928 ERROR + HIGHER_ACCESS_REQUIRED);
2931 delnum = extract_long(delstr, 0);
2933 num_deleted = CtdlDeleteMessages(CC->room.QRname, delnum, "");
2936 cprintf("%d %d message%s deleted.\n", CIT_OK,
2937 num_deleted, ((num_deleted != 1) ? "s" : ""));
2939 cprintf("%d Message %ld not found.\n", ERROR + MESSAGE_NOT_FOUND, delnum);
2945 * Back end API function for moves and deletes
2947 int CtdlCopyMsgToRoom(long msgnum, char *dest) {
2950 err = CtdlSaveMsgPointerInRoom(dest, msgnum,
2951 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
2952 if (err != 0) return(err);
2960 * move or copy a message to another room
2962 void cmd_move(char *args)
2966 struct ctdlroom qtemp;
2972 num = extract_long(args, 0);
2973 extract(targ, args, 1);
2974 targ[ROOMNAMELEN - 1] = 0;
2975 is_copy = extract_int(args, 2);
2977 if (getroom(&qtemp, targ) != 0) {
2978 cprintf("%d '%s' does not exist.\n",
2979 ERROR + ROOM_NOT_FOUND, targ);
2983 getuser(&CC->user, CC->curr_user);
2984 ra = CtdlRoomAccess(&qtemp, &CC->user);
2986 /* Check for permission to perform this operation.
2987 * Remember: "CC->room" is source, "qtemp" is target.
2991 /* Aides can move/copy */
2992 if (CC->user.axlevel >= 6) permit = 1;
2994 /* Room aides can move/copy */
2995 if (CC->user.usernum == CC->room.QRroomaide) permit = 1;
2997 /* Permit move/copy from personal rooms */
2998 if ((CC->room.QRflags & QR_MAILBOX)
2999 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3001 /* Permit only copy from public to personal room */
3003 && (!(CC->room.QRflags & QR_MAILBOX))
3004 && (qtemp.QRflags & QR_MAILBOX)) permit = 1;
3006 /* User must have access to target room */
3007 if (!(ra & UA_KNOWN)) permit = 0;
3010 cprintf("%d Higher access required.\n",
3011 ERROR + HIGHER_ACCESS_REQUIRED);
3015 err = CtdlCopyMsgToRoom(num, targ);
3017 cprintf("%d Cannot store message in %s: error %d\n",
3022 /* Now delete the message from the source room,
3023 * if this is a 'move' rather than a 'copy' operation.
3026 CtdlDeleteMessages(CC->room.QRname, num, "");
3029 cprintf("%d Message %s.\n", CIT_OK, (is_copy ? "copied" : "moved") );
3035 * GetMetaData() - Get the supplementary record for a message
3037 void GetMetaData(struct MetaData *smibuf, long msgnum)
3040 struct cdbdata *cdbsmi;
3043 memset(smibuf, 0, sizeof(struct MetaData));
3044 smibuf->meta_msgnum = msgnum;
3045 smibuf->meta_refcount = 1; /* Default reference count is 1 */
3047 /* Use the negative of the message number for its supp record index */
3048 TheIndex = (0L - msgnum);
3050 cdbsmi = cdb_fetch(CDB_MSGMAIN, &TheIndex, sizeof(long));
3051 if (cdbsmi == NULL) {
3052 return; /* record not found; go with defaults */
3054 memcpy(smibuf, cdbsmi->ptr,
3055 ((cdbsmi->len > sizeof(struct MetaData)) ?
3056 sizeof(struct MetaData) : cdbsmi->len));
3063 * PutMetaData() - (re)write supplementary record for a message
3065 void PutMetaData(struct MetaData *smibuf)
3069 /* Use the negative of the message number for the metadata db index */
3070 TheIndex = (0L - smibuf->meta_msgnum);
3072 lprintf(CTDL_DEBUG, "PutMetaData(%ld) - ref count is %d\n",
3073 smibuf->meta_msgnum, smibuf->meta_refcount);
3075 cdb_store(CDB_MSGMAIN,
3076 &TheIndex, sizeof(long),
3077 smibuf, sizeof(struct MetaData));
3082 * AdjRefCount - change the reference count for a message;
3083 * delete the message if it reaches zero
3085 void AdjRefCount(long msgnum, int incr)
3088 struct MetaData smi;
3091 /* This is a *tight* critical section; please keep it that way, as
3092 * it may get called while nested in other critical sections.
3093 * Complicating this any further will surely cause deadlock!
3095 begin_critical_section(S_SUPPMSGMAIN);
3096 GetMetaData(&smi, msgnum);
3097 lprintf(CTDL_DEBUG, "Ref count for message <%ld> before write is <%d>\n",
3098 msgnum, smi.meta_refcount);
3099 smi.meta_refcount += incr;
3101 end_critical_section(S_SUPPMSGMAIN);
3102 lprintf(CTDL_DEBUG, "Ref count for message <%ld> after write is <%d>\n",
3103 msgnum, smi.meta_refcount);
3105 /* If the reference count is now zero, delete the message
3106 * (and its supplementary record as well).
3108 if (smi.meta_refcount == 0) {
3109 lprintf(CTDL_DEBUG, "Deleting message <%ld>\n", msgnum);
3111 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3112 cdb_delete(CDB_BIGMSGS, &delnum, sizeof(long));
3114 /* We have to delete the metadata record too! */
3115 delnum = (0L - msgnum);
3116 cdb_delete(CDB_MSGMAIN, &delnum, sizeof(long));
3121 * Write a generic object to this room
3123 * Note: this could be much more efficient. Right now we use two temporary
3124 * files, and still pull the message into memory as with all others.
3126 void CtdlWriteObject(char *req_room, /* Room to stuff it in */
3127 char *content_type, /* MIME type of this object */
3128 char *tempfilename, /* Where to fetch it from */
3129 struct ctdluser *is_mailbox, /* Mailbox room? */
3130 int is_binary, /* Is encoding necessary? */
3131 int is_unique, /* Del others of this type? */
3132 unsigned int flags /* Internal save flags */
3137 struct ctdlroom qrbuf;
3138 char roomname[ROOMNAMELEN];
3139 struct CtdlMessage *msg;
3141 char *raw_message = NULL;
3142 char *encoded_message = NULL;
3143 off_t raw_length = 0;
3145 if (is_mailbox != NULL)
3146 MailboxName(roomname, sizeof roomname, is_mailbox, req_room);
3148 safestrncpy(roomname, req_room, sizeof(roomname));
3149 lprintf(CTDL_DEBUG, "CtdlWriteObject() to <%s> (flags=%d)\n", roomname, flags);
3152 fp = fopen(tempfilename, "rb");
3154 lprintf(CTDL_CRIT, "Cannot open %s: %s\n",
3155 tempfilename, strerror(errno));
3158 fseek(fp, 0L, SEEK_END);
3159 raw_length = ftell(fp);
3161 lprintf(CTDL_DEBUG, "Raw length is %ld\n", (long)raw_length);
3163 raw_message = malloc((size_t)raw_length + 2);
3164 fread(raw_message, (size_t)raw_length, 1, fp);
3168 encoded_message = malloc((size_t)
3169 (((raw_length * 134) / 100) + 4096 ) );
3172 encoded_message = malloc((size_t)(raw_length + 4096));
3175 sprintf(encoded_message, "Content-type: %s\n", content_type);
3178 sprintf(&encoded_message[strlen(encoded_message)],
3179 "Content-transfer-encoding: base64\n\n"
3183 sprintf(&encoded_message[strlen(encoded_message)],
3184 "Content-transfer-encoding: 7bit\n\n"
3190 &encoded_message[strlen(encoded_message)],
3196 raw_message[raw_length] = 0;
3198 &encoded_message[strlen(encoded_message)],
3206 lprintf(CTDL_DEBUG, "Allocating\n");
3207 msg = malloc(sizeof(struct CtdlMessage));
3208 memset(msg, 0, sizeof(struct CtdlMessage));
3209 msg->cm_magic = CTDLMESSAGE_MAGIC;
3210 msg->cm_anon_type = MES_NORMAL;
3211 msg->cm_format_type = 4;
3212 msg->cm_fields['A'] = strdup(CC->user.fullname);
3213 msg->cm_fields['O'] = strdup(req_room);
3214 msg->cm_fields['N'] = strdup(config.c_nodename);
3215 msg->cm_fields['H'] = strdup(config.c_humannode);
3216 msg->cm_flags = flags;
3218 msg->cm_fields['M'] = encoded_message;
3220 /* Create the requested room if we have to. */
3221 if (getroom(&qrbuf, roomname) != 0) {
3222 create_room(roomname,
3223 ( (is_mailbox != NULL) ? 5 : 3 ),
3226 /* If the caller specified this object as unique, delete all
3227 * other objects of this type that are currently in the room.
3230 lprintf(CTDL_DEBUG, "Deleted %d other msgs of this type\n",
3231 CtdlDeleteMessages(roomname, 0L, content_type));
3233 /* Now write the data */
3234 CtdlSubmitMsg(msg, NULL, roomname);
3235 CtdlFreeMessage(msg);
3243 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
3244 config_msgnum = msgnum;
3248 char *CtdlGetSysConfig(char *sysconfname) {
3249 char hold_rm[ROOMNAMELEN];
3252 struct CtdlMessage *msg;
3255 strcpy(hold_rm, CC->room.QRname);
3256 if (getroom(&CC->room, SYSCONFIGROOM) != 0) {
3257 getroom(&CC->room, hold_rm);
3262 /* We want the last (and probably only) config in this room */
3263 begin_critical_section(S_CONFIG);
3264 config_msgnum = (-1L);
3265 CtdlForEachMessage(MSGS_LAST, 1, sysconfname, NULL,
3266 CtdlGetSysConfigBackend, NULL);
3267 msgnum = config_msgnum;
3268 end_critical_section(S_CONFIG);
3274 msg = CtdlFetchMessage(msgnum, 1);
3276 conf = strdup(msg->cm_fields['M']);
3277 CtdlFreeMessage(msg);
3284 getroom(&CC->room, hold_rm);
3286 if (conf != NULL) do {
3287 extract_token(buf, conf, 0, '\n');
3288 strcpy(conf, &conf[strlen(buf)+1]);
3289 } while ( (strlen(conf)>0) && (strlen(buf)>0) );
3294 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
3295 char temp[PATH_MAX];
3298 strcpy(temp, tmpnam(NULL));
3300 fp = fopen(temp, "w");
3301 if (fp == NULL) return;
3302 fprintf(fp, "%s", sysconfdata);
3305 /* this handy API function does all the work for us */
3306 CtdlWriteObject(SYSCONFIGROOM, sysconfname, temp, NULL, 0, 1, 0);
3312 * Determine whether a given Internet address belongs to the current user
3314 int CtdlIsMe(char *addr) {
3315 struct recptypes *recp;
3318 recp = validate_recipients(addr);
3319 if (recp == NULL) return(0);
3321 if (recp->num_local == 0) {
3326 for (i=0; i<recp->num_local; ++i) {
3327 extract(addr, recp->recp_local, i);
3328 if (!strcasecmp(addr, CC->user.fullname)) {
3340 * Citadel protocol command to do the same
3342 void cmd_isme(char *argbuf) {
3345 if (CtdlAccessCheck(ac_logged_in)) return;
3346 extract(addr, argbuf, 0);
3348 if (CtdlIsMe(addr)) {
3349 cprintf("%d %s\n", CIT_OK, addr);
3352 cprintf("%d Not you.\n", ERROR + ILLEGAL_VALUE);