/*
- * $Id$
- *
* This module allows Citadel to use SpamAssassin to filter incoming messages
* arriving via SMTP. For more information on SpamAssassin, visit
* http://www.spamassassin.org (the SpamAssassin project is not in any way
* affiliated with the Citadel project).
+ *
+ * Copyright (c) 1998-2015 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
#define SPAMASSASSIN_PORT "783"
#include <pwd.h>
#include <errno.h>
#include <sys/types.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
+#include <time.h>
#include <sys/wait.h>
#include <string.h>
#include <limits.h>
#include "support.h"
#include "config.h"
#include "control.h"
-#include "room_ops.h"
#include "user_ops.h"
-#include "policy.h"
#include "database.h"
#include "msgbase.h"
#include "internet_addressing.h"
/*
* Connect to the SpamAssassin server and scan a message.
*/
-int spam_assassin(struct CtdlMessage *msg) {
+int spam_assassin(struct CtdlMessage *msg, struct recptypes *recp) {
int sock = (-1);
char sahosts[SIZ];
int num_sahosts;
char buf[SIZ];
int is_spam = 0;
int sa;
- char *msgtext;
- size_t msglen;
+ StrBuf *msgtext;
+ CitContext *CCC=CC;
/* For users who have authenticated to this server we never want to
* apply spam filtering, because presumably they're trustworthy.
/* Try them one by one until we get a working one */
for (sa=0; sa<num_sahosts; ++sa) {
extract_token(buf, sahosts, sa, '|', sizeof buf);
- lprintf(CTDL_INFO, "Connecting to SpamAssassin at <%s>\n", buf);
- sock = sock_connect(buf, SPAMASSASSIN_PORT, "tcp");
- if (sock >= 0) lprintf(CTDL_DEBUG, "Connected!\n");
+ syslog(LOG_INFO, "Connecting to SpamAssassin at <%s>\n", buf);
+ sock = sock_connect(buf, SPAMASSASSIN_PORT);
+ if (sock >= 0) syslog(LOG_DEBUG, "Connected!\n");
}
if (sock < 0) {
return(0);
}
+ CCC->SBuf.Buf = NewStrBuf();
+ CCC->sMigrateBuf = NewStrBuf();
+ CCC->SBuf.ReadWritePointer = NULL;
+
/* Command */
- lprintf(CTDL_DEBUG, "Transmitting command\n");
+ syslog(LOG_DEBUG, "Transmitting command\n");
sprintf(buf, "CHECK SPAMC/1.2\r\n\r\n");
- sock_write(sock, buf, strlen(buf));
+ sock_write(&sock, buf, strlen(buf));
/* Message */
- CC->redirect_buffer = malloc(SIZ);
- CC->redirect_len = 0;
- CC->redirect_alloc = SIZ;
- CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1);
+ CCC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
+ CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, 0);
msgtext = CC->redirect_buffer;
- msglen = CC->redirect_len;
CC->redirect_buffer = NULL;
- CC->redirect_len = 0;
- CC->redirect_alloc = 0;
- sock_write(sock, msgtext, msglen);
- free(msgtext);
+ sock_write(&sock, SKEY(msgtext));
+ FreeStrBuf(&msgtext);
/* Close one end of the socket connection; this tells SpamAssassin
* that we're done.
*/
- sock_shutdown(sock, SHUT_WR);
+ if (sock != -1)
+ sock_shutdown(sock, SHUT_WR);
/* Response */
- lprintf(CTDL_DEBUG, "Awaiting response\n");
- if (sock_getln(sock, buf, sizeof buf) < 0) {
+ syslog(LOG_DEBUG, "Awaiting response\n");
+ if (sock_getln(&sock, buf, sizeof buf) < 0) {
goto bail;
}
- lprintf(CTDL_DEBUG, "<%s\n", buf);
+ syslog(LOG_DEBUG, "<%s\n", buf);
if (strncasecmp(buf, "SPAMD", 5)) {
goto bail;
}
- if (sock_getln(sock, buf, sizeof buf) < 0) {
+ if (sock_getln(&sock, buf, sizeof buf) < 0) {
goto bail;
}
- lprintf(CTDL_DEBUG, "<%s\n", buf);
- if (!strncasecmp(buf, "Spam: True", 10)) {
- is_spam = 1;
- }
+ syslog(LOG_DEBUG, "<%s\n", buf);
+ syslog(LOG_DEBUG, "c_spam_flag_only setting %d\n", CtdlGetConfigInt("c_spam_flag_only"));
+ if (CtdlGetConfigInt("c_spam_flag_only")) {
+ int headerlen;
+ char *cur;
+ char sastatus[10];
+ char sascore[10];
+ char saoutof[10];
+ int numscore;
+
+ syslog(LOG_DEBUG, "flag spam code used");
+
+ extract_token(sastatus, buf, 1, ' ', sizeof sastatus);
+ extract_token(sascore, buf, 3, ' ', sizeof sascore);
+ extract_token(saoutof, buf, 5, ' ', sizeof saoutof);
+
+ memcpy(buf, HKEY("X-Spam-Level: "));
+ cur = buf + 14;
+ for (numscore = atoi(sascore); numscore>0; numscore--)
+ *(cur++) = '*';
+ *cur = '\0';
+
+ headerlen = cur - buf;
+ headerlen += snprintf(cur, (sizeof(buf) - headerlen),
+ "\r\nX-Spam-Status: %s, score=%s required=%s\r\n",
+ sastatus, sascore, saoutof);
+
+ CM_PrependToField(msg, eMesageText, buf, headerlen);
+
+ } else {
+ syslog(LOG_DEBUG, "reject spam code used");
+ if (!strncasecmp(buf, "Spam: True", 10)) {
+ is_spam = 1;
+ }
- if (is_spam) {
- if (msg->cm_fields['0'] != NULL) {
- free(msg->cm_fields['0']);
+ if (is_spam) {
+ CM_SetField(msg, eErrorMsg, HKEY("message rejected by spam filter"));
}
- msg->cm_fields['0'] = strdup("message rejected by spam filter");
}
bail: close(sock);
+ FreeStrBuf(&CCC->SBuf.Buf);
+ FreeStrBuf(&CCC->sMigrateBuf);
return(is_spam);
}
CtdlRegisterMessageHook(spam_assassin, EVT_SMTPSCAN);
}
- /* return our Subversion id for the Log */
- return "$Id$";
+ /* return our module name for the log */
+ return "spam";
}
projects / citadel.git / blobdiff