-/*
- * Check to see whether we have permission to post a message in the current
- * room. Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
- * returns 0 on success.
- */
-int CtdlDoIHavePermissionToPostInThisRoom(
- char *errmsgbuf,
- size_t n,
- const char* RemoteIdentifier,
- int PostPublic,
- int is_reply
-) {
- int ra;
-
- if (!(CC->logged_in) &&
- (PostPublic == POST_LOGGED_IN)) {
- snprintf(errmsgbuf, n, "Not logged in.");
- return (ERROR + NOT_LOGGED_IN);
- }
- else if (PostPublic == CHECK_EXISTANCE) {
- return (0); // We're Evaling whether a recipient exists
- }
- else if (!(CC->logged_in)) {
-
- if ((CC->room.QRflags & QR_READONLY)) {
- snprintf(errmsgbuf, n, "Not logged in.");
- return (ERROR + NOT_LOGGED_IN);
- }
- if (CC->room.QRflags2 & QR2_MODERATED) {
- snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
- return (ERROR + NOT_LOGGED_IN);
- }
- if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
- SpoolControl *sc;
- char filename[SIZ];
- int found;
-
- if (RemoteIdentifier == NULL)
- {
- snprintf(errmsgbuf, n, "Need sender to permit access.");
- return (ERROR + USERNAME_REQUIRED);
- }
-
- assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
- begin_critical_section(S_NETCONFIGS);
- if (!read_spoolcontrol_file(&sc, filename))
- {
- end_critical_section(S_NETCONFIGS);
- snprintf(errmsgbuf, n,
- "This mailing list only accepts posts from subscribers.");
- return (ERROR + NO_SUCH_USER);
- }
- end_critical_section(S_NETCONFIGS);
- found = is_recipient (sc, RemoteIdentifier);
- free_spoolcontrol_struct(&sc);
- if (found) {
- return (0);
- }
- else {
- snprintf(errmsgbuf, n,
- "This mailing list only accepts posts from subscribers.");
- return (ERROR + NO_SUCH_USER);
- }
- }
- return (0);
-
- }
-
- if ((CC->user.axlevel < AxProbU)
- && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
- snprintf(errmsgbuf, n, "Need to be validated to enter "
- "(except in %s> to sysop)", MAILROOM);
- return (ERROR + HIGHER_ACCESS_REQUIRED);
- }
-
- CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
-
- if ( (!(ra & UA_POSTALLOWED)) && (ra & UA_REPLYALLOWED) && (!is_reply) ) {
- /*
- * To be thorough, we ought to check to see if the message they are
- * replying to is actually a valid one in this room, but unless this
- * actually becomes a problem we'll go with high performance instead.
- */
- snprintf(errmsgbuf, n, "You may only reply to existing messages here.");
- return (ERROR + HIGHER_ACCESS_REQUIRED);
- }
-
- else if (!(ra & UA_POSTALLOWED)) {
- snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
- return (ERROR + HIGHER_ACCESS_REQUIRED);
- }
-
- strcpy(errmsgbuf, "Ok");
- return(0);
-}
-
-
-/*
- * Check to see if the specified user has Internet mail permission
- * (returns nonzero if permission is granted)
- */
-int CtdlCheckInternetMailPermission(struct ctdluser *who) {
-
- /* Do not allow twits to send Internet mail */
- if (who->axlevel <= AxProbU) return(0);
-
- /* Globally enabled? */
- if (config.c_restrict == 0) return(1);
-
- /* User flagged ok? */
- if (who->flags & US_INTERNET) return(2);
-
- /* Aide level access? */
- if (who->axlevel >= AxAideU) return(3);
-
- /* No mail for you! */
- return(0);
-}
-
-
-/*
- * Validate recipients, count delivery types and errors, and handle aliasing
- * FIXME check for dupes!!!!!
- *
- * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
- * were specified, or the number of addresses found invalid.
- *
- * Caller needs to free the result using free_recipients()
- */
-struct recptypes *validate_recipients(const char *supplied_recipients,
- const char *RemoteIdentifier,
- int Flags) {
- struct recptypes *ret;
- char *recipients = NULL;
- char this_recp[256];
- char this_recp_cooked[256];
- char append[SIZ];
- int num_recps = 0;
- int i, j;
- int mailtype;
- int invalid;
- struct ctdluser tempUS;
- struct ctdlroom tempQR;
- struct ctdlroom tempQR2;
- int err = 0;
- char errmsg[SIZ];
- int in_quotes = 0;
-
- /* Initialize */
- ret = (struct recptypes *) malloc(sizeof(struct recptypes));
- if (ret == NULL) return(NULL);
-
- /* Set all strings to null and numeric values to zero */
- memset(ret, 0, sizeof(struct recptypes));
-
- if (supplied_recipients == NULL) {
- recipients = strdup("");
- }
- else {
- recipients = strdup(supplied_recipients);
- }
-
- /* Allocate some memory. Yes, this allocates 500% more memory than we will
- * actually need, but it's healthier for the heap than doing lots of tiny
- * realloc() calls instead.
- */
-
- ret->errormsg = malloc(strlen(recipients) + 1024);
- ret->recp_local = malloc(strlen(recipients) + 1024);
- ret->recp_internet = malloc(strlen(recipients) + 1024);
- ret->recp_ignet = malloc(strlen(recipients) + 1024);
- ret->recp_room = malloc(strlen(recipients) + 1024);
- ret->display_recp = malloc(strlen(recipients) + 1024);
-
- ret->errormsg[0] = 0;
- ret->recp_local[0] = 0;
- ret->recp_internet[0] = 0;
- ret->recp_ignet[0] = 0;
- ret->recp_room[0] = 0;
- ret->display_recp[0] = 0;
-
- ret->recptypes_magic = RECPTYPES_MAGIC;
-
- /* Change all valid separator characters to commas */
- for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
- if ((recipients[i] == ';') || (recipients[i] == '|')) {
- recipients[i] = ',';
- }
- }
-
- /* Now start extracting recipients... */
-
- while (!IsEmptyStr(recipients)) {
-
- for (i=0; i<=strlen(recipients); ++i) {
- if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
- if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
- safestrncpy(this_recp, recipients, i+1);
- this_recp[i] = 0;
- if (recipients[i] == ',') {
- strcpy(recipients, &recipients[i+1]);
- }
- else {
- strcpy(recipients, "");
- }
- break;
- }
- }
-
- striplt(this_recp);
- if (IsEmptyStr(this_recp))
- break;
- syslog(LOG_DEBUG, "Evaluating recipient #%d: %s\n", num_recps, this_recp);
- ++num_recps;
- mailtype = alias(this_recp);
- mailtype = alias(this_recp);
- mailtype = alias(this_recp);
- j = 0;
- for (j=0; !IsEmptyStr(&this_recp[j]); ++j) {
- if (this_recp[j]=='_') {
- this_recp_cooked[j] = ' ';
- }
- else {
- this_recp_cooked[j] = this_recp[j];
- }
- }
- this_recp_cooked[j] = '\0';
- invalid = 0;
- errmsg[0] = 0;
- switch(mailtype) {
- case MES_LOCAL:
- if (!strcasecmp(this_recp, "sysop")) {
- ++ret->num_room;
- strcpy(this_recp, config.c_aideroom);
- if (!IsEmptyStr(ret->recp_room)) {
- strcat(ret->recp_room, "|");
- }
- strcat(ret->recp_room, this_recp);
- }
- else if ( (!strncasecmp(this_recp, "room_", 5))
- && (!CtdlGetRoom(&tempQR, &this_recp_cooked[5])) ) {
-
- /* Save room so we can restore it later */
- tempQR2 = CC->room;
- CC->room = tempQR;
-
- /* Check permissions to send mail to this room */
- err = CtdlDoIHavePermissionToPostInThisRoom(
- errmsg,
- sizeof errmsg,
- RemoteIdentifier,
- Flags,
- 0 /* 0 = not a reply */
- );
- if (err)
- {
- ++ret->num_error;
- invalid = 1;
- }
- else {
- ++ret->num_room;
- if (!IsEmptyStr(ret->recp_room)) {
- strcat(ret->recp_room, "|");
- }
- strcat(ret->recp_room, &this_recp_cooked[5]);
- }
-
- /* Restore room in case something needs it */
- CC->room = tempQR2;
-
- }
- else if (CtdlGetUser(&tempUS, this_recp) == 0) {
- ++ret->num_local;
- strcpy(this_recp, tempUS.fullname);
- if (!IsEmptyStr(ret->recp_local)) {
- strcat(ret->recp_local, "|");
- }
- strcat(ret->recp_local, this_recp);
- }
- else if (CtdlGetUser(&tempUS, this_recp_cooked) == 0) {
- ++ret->num_local;
- strcpy(this_recp, tempUS.fullname);
- if (!IsEmptyStr(ret->recp_local)) {
- strcat(ret->recp_local, "|");
- }
- strcat(ret->recp_local, this_recp);
- }
- else {
- ++ret->num_error;
- invalid = 1;
- }
- break;
- case MES_INTERNET:
- /* Yes, you're reading this correctly: if the target
- * domain points back to the local system or an attached
- * Citadel directory, the address is invalid. That's
- * because if the address were valid, we would have
- * already translated it to a local address by now.
- */
- if (IsDirectory(this_recp, 0)) {
- ++ret->num_error;
- invalid = 1;
- }
- else {
- ++ret->num_internet;
- if (!IsEmptyStr(ret->recp_internet)) {
- strcat(ret->recp_internet, "|");
- }
- strcat(ret->recp_internet, this_recp);
- }
- break;
- case MES_IGNET:
- ++ret->num_ignet;
- if (!IsEmptyStr(ret->recp_ignet)) {
- strcat(ret->recp_ignet, "|");
- }
- strcat(ret->recp_ignet, this_recp);
- break;
- case MES_ERROR:
- ++ret->num_error;
- invalid = 1;
- break;
- }
- if (invalid) {
- if (IsEmptyStr(errmsg)) {
- snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
- }
- else {
- snprintf(append, sizeof append, "%s", errmsg);
- }
- if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
- if (!IsEmptyStr(ret->errormsg)) {
- strcat(ret->errormsg, "; ");
- }
- strcat(ret->errormsg, append);
- }
- }
- else {
- if (IsEmptyStr(ret->display_recp)) {
- strcpy(append, this_recp);
- }
- else {
- snprintf(append, sizeof append, ", %s", this_recp);
- }
- if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
- strcat(ret->display_recp, append);
- }
- }
- }
-
- if ((ret->num_local + ret->num_internet + ret->num_ignet +
- ret->num_room + ret->num_error) == 0) {
- ret->num_error = (-1);
- strcpy(ret->errormsg, "No recipients specified.");
- }
-
- syslog(LOG_DEBUG, "validate_recipients()\n");
- syslog(LOG_DEBUG, " local: %d <%s>\n", ret->num_local, ret->recp_local);
- syslog(LOG_DEBUG, " room: %d <%s>\n", ret->num_room, ret->recp_room);
- syslog(LOG_DEBUG, " inet: %d <%s>\n", ret->num_internet, ret->recp_internet);
- syslog(LOG_DEBUG, " ignet: %d <%s>\n", ret->num_ignet, ret->recp_ignet);
- syslog(LOG_DEBUG, " error: %d <%s>\n", ret->num_error, ret->errormsg);
-
- free(recipients);
- return(ret);
-}
-
-
-/*
- * Destructor for struct recptypes
- */
-void free_recipients(struct recptypes *valid) {
-
- if (valid == NULL) {
- return;
- }
-
- if (valid->recptypes_magic != RECPTYPES_MAGIC) {
- syslog(LOG_EMERG, "Attempt to call free_recipients() on some other data type!\n");
- abort();
- }
-
- if (valid->errormsg != NULL) free(valid->errormsg);
- if (valid->recp_local != NULL) free(valid->recp_local);
- if (valid->recp_internet != NULL) free(valid->recp_internet);
- if (valid->recp_ignet != NULL) free(valid->recp_ignet);
- if (valid->recp_room != NULL) free(valid->recp_room);
- if (valid->display_recp != NULL) free(valid->display_recp);
- if (valid->bounce_to != NULL) free(valid->bounce_to);
- if (valid->envelope_from != NULL) free(valid->envelope_from);
- free(valid);
-}
-
-