ossp-pkg/petidomo/handleacl.c
1.1.1.1
/*
* $Source: /v/ossp/cvs/ossp-pkg/petidomo/handleacl.c,v $
* $Revision: 1.1.1.1 $
* $Date: 2000/12/13 13:19:23 $
*
* Copyright (C) 1996 by CyberSolutions GmbH.
* All rights reserved.
*/
#include <stdlib.h>
#include <petidomo.h>
/* Returncodes have the following meaning: '-1' == Error, '0' ==
Proceed, '1' == Mail has been taken care of. */
int
handleACL(struct Mail * MailStruct, const char * listname, int operation, char * parameter)
{
const struct PD_Config * MasterConfig;
const struct List_Config * ListConfig;
FILE * fh;
char * buffer;
char envelope[1024];
char owner[1024];
int rc;
assert(MailStruct != NULL);
MasterConfig = getMasterConfig();
if (listname != NULL) {
ListConfig = getListConfig(listname);
sprintf(envelope, "%s-owner@%s", listname, ListConfig->fqdn);
sprintf(owner, "%s-owner@%s", listname, ListConfig->fqdn);
}
else {
sprintf(envelope, "petidomo-manager@%s", MasterConfig->fqdn);
sprintf(owner, "petidomo-manager@%s", MasterConfig->fqdn);
}
/* Check for authorization. */
switch(operation) {
case ACL_NONE:
debug((DEBUG_ACL, 4, "No ACL statement matched the mail."));
break;
case ACL_PASS:
debug((DEBUG_ACL, 4, "Mail passed access control."));
break;
case ACL_DROP:
syslog(LOG_INFO, "Mail is dropped due to access control.");
return 1;
case ACL_REJECTWITH:
assert(parameter != NULL);
case ACL_REJECT:
syslog(LOG_INFO, "Mail is rejected due to access control.");
fh = vOpenMailer(envelope, owner, (MailStruct->Reply_To) ?
(MailStruct->Reply_To) : (MailStruct->From), NULL);
if (fh == NULL) {
syslog(LOG_ERR, "Failed to open mailer for redirection.");
return -1;
}
fprintf(fh, "From: %s (Petidomo Mailing List Server)\n", owner);
fprintf(fh, "To: %s\n", (MailStruct->Reply_To) ?
(MailStruct->Reply_To) : (MailStruct->From));
fprintf(fh, "Cc: %s\n", owner);
if (listname != NULL)
fprintf(fh, "Subject: Your posting to list \"%s\" was rejected\n", listname);
else
fprintf(fh, "Subject: Your petidomo request was rejected\n");
fprintf(fh, "Precedence: junk\n");
fprintf(fh, "Sender: %s\n", owner);
fprintf(fh, "\n");
if (operation == ACL_REJECTWITH && (buffer = loadfile(parameter)) != NULL) {
fprintf(fh, "%s\n", buffer);
free(buffer);
}
else
fprintf(fh, "Your article was rejected by the access control rules:\n\n");
fprintf(fh, "%s\n", MailStruct->Header);
fprintf(fh, "%s", MailStruct->Body);
CloseMailer(fh);
return 1;
case ACL_REDIRECT:
assert(parameter != NULL);
syslog(LOG_INFO, "Mail is redirected to \"%s\" due to access control.", parameter);
fh = vOpenMailer(MailStruct->Envelope, parameter, NULL);
if (fh == NULL) {
syslog(LOG_ERR, "Failed to open mailer for redirection.");
return -1;
}
fprintf(fh, "%s\n", MailStruct->Header);
fprintf(fh, "%s", MailStruct->Body);
CloseMailer(fh);
return 1;
case ACL_FORWARD:
assert(parameter != NULL);
syslog(LOG_INFO, "Mail is forwarded to \"%s\" due to access control.", parameter);
fh = vOpenMailer(envelope, parameter, NULL);
if (fh == NULL) {
syslog(LOG_ERR, "Failed to open mailer for redirection.");
return -1;
}
fprintf(fh, "From: %s (Petidomo Mailing List Server)\n", owner);
fprintf(fh, "To: %s\n", parameter);
if (listname != NULL)
fprintf(fh, "Subject: Disallowed posting from \"%s\" to list \"%s\"\n",
MailStruct->From, listname);
else
fprintf(fh, "Subject: Disallowed petidomo request from \"%s\"\n",
MailStruct->From);
fprintf(fh, "Precedence: junk\n");
fprintf(fh, "Sender: %s\n", owner);
fprintf(fh, "\n");
fprintf(fh, "The following article was forwarded to you, due to the\n" \
"access control rules:\n\n");
fprintf(fh, "%s\n", MailStruct->Header);
fprintf(fh, "%s", MailStruct->Body);
CloseMailer(fh);
return 1;
case ACL_FILTER:
assert(parameter != NULL);
syslog(LOG_INFO, "Mail is filtered through \"%s\" due to access control.",
parameter);
rc = MailFilter(MailStruct, parameter);
debug((DEBUG_ACL, 3, "Mail filter \"%s\" returned %d.", parameter, rc));
if (rc != 0) {
syslog(LOG_ERR, "Mail filter \"%s\" returned error code %d.", parameter, rc);
return -1;
}
break;
default:
syslog(LOG_CRIT, "Internal error: Unexpected return code %d from checkACL()",
operation);
return -1;
}
if (parameter != NULL)
free(parameter);
#ifdef DEBUG
if (listname != NULL) {
debug((DEBUG_ACL, 3, "\"%s\" is authorized to post to \"%s\".",
MailStruct->From, listname));
}
else {
debug((DEBUG_ACL, 3, "Request from \"%s\" is okay, says ACL", MailStruct->From));
}
#endif
return 0;
}
