X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fmodules%2Fdspam%2Fserv_dspam.c;fp=citadel%2Fmodules%2Fdspam%2Fserv_dspam.c;h=90de7191476302e8c84a832d6a49ab542e691567;hb=c6696c37e50f7c75adcf79e561ba97f55977b072;hp=0000000000000000000000000000000000000000;hpb=0a9581dd74645a47a6b705f1df154aa790df2279;p=citadel.git

diff --git a/citadel/modules/dspam/serv_dspam.c b/citadel/modules/dspam/serv_dspam.c
new file mode 100644
index 000000000..90de71914
--- /dev/null
+++ b/citadel/modules/dspam/serv_dspam.c
@@ -0,0 +1,189 @@
+/*
+ * $Id: serv_dspam.c 5876 2007-12-10 23:22:03Z dothebart $
+ *
+ * This module glues libDSpam to the Citadel server in order to implement
+ * DSPAM Spamchecking 
+ *
+ * This code is released under the terms of the GNU General Public License. 
+ */
+
+#include "sysdep.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <ctype.h>
+#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 <sys/wait.h>
+#include <string.h>
+#include <limits.h>
+#include <libcitadel.h>
+#include "citadel.h"
+#include "server.h"
+#include "citserver.h"
+#include "support.h"
+#include "config.h"
+#include "room_ops.h"
+#include "policy.h"
+#include "database.h"
+#include "msgbase.h"
+#include "internet_addressing.h"
+
+
+#include "ctdl_module.h"
+
+
+#ifdef HAVE_LIBDSPAM
+
+#undef HAVE_CONFIG_H
+#include <dspam/libdspam.h>
+#define HAVE_CONFIG_H
+/*
+ * Citadel protocol to manage sieve scripts.
+ * This is basically a simplified (read: doesn't resemble IMAP) version
+ * of the 'managesieve' protocol.
+ */
+void cmd_tspam(char *argbuf) {
+	
+
+	/* tag mails as spam or Ham */
+	/* probably do: dspam_init(ctdl_dspam_dir); dspam_process dspam_addattribute; dspam_destroy*/
+	// extract DSS_ERROR or DSS_CORPUS from the commandline. error->ham; corpus -> spam?
+}
+
+
+
+void ctdl_dspam_init(void) {
+
+	libdspam_init("bdb");/* <which database backend do we prefer? */
+
+}
+
+void dspam_do_msg(long msgnum, void *userdata) 
+{
+	DSPAM_CTX *CTX;               	/* DSPAM Context */
+	struct CtdlMessage *msg;
+	struct _ds_spam_signature SIG;        /* signature */
+
+	CTX = *(DSPAM_CTX**) userdata;
+	msg = CtdlFetchMessage(msgnum, 0);
+	if (msg == NULL) return;
+	CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1);
+
+	/* Call DSPAM's processor with the message text */
+	if (dspam_process (CTX, msg->cm_fields['A']) != 0)
+	{
+		lprintf(CTDL_CRIT, "ERROR: dspam_process failed");
+		return;
+	}
+	if (CTX->signature == NULL)
+	{
+		lprintf(CTDL_CRIT,"No signature provided\n");
+	}
+	else
+	{
+/* Copy to a safe place */
+
+		SIG.data = malloc (CTX->signature->length);
+		if (SIG.data != NULL)
+			memcpy (SIG.data, CTX->signature->data, CTX->signature->length);
+	}
+	SIG.length = CTX->signature->length;
+	/* Print processing results */
+	printf ("Probability: %2.4f Confidence: %2.4f, Result: %s\n",
+		CTX->probability,
+		CTX->confidence,
+		(CTX->result == DSR_ISSPAM) ? "Spam" : "Innocent");
+
+	//// todo: put signature into the citadel message
+	//// todo: save message; destroy message.
+}
+
+int serv_dspam_room(struct ctdlroom *room)
+{
+	DSPAM_CTX *CTX;               	/* DSPAM Context */
+
+	/* scan for spam; do */
+	/* probably do: dspam_init; dspam_process dspam_addattribute; dspam_destroy*/
+//DSS_NONE
+//#define	DSR_ISSPAM		0x01
+//#define DSR_ISINNOCENT		0x02
+// dspam_init (cc->username, NULL, ctdl_dspam_home, DSM_PROCESS,
+	//                  DSF_SIGNATURE | DSF_NOISE);
+	/// todo: if roomname = spam / ham -> learn!
+	if (room->QRflags & QR_PRIVATE) /* Are we sending to a private mailbox? */
+	{
+		char User[64];
+		// maybe we should better get our realname here?
+		snprintf(User, 64, "%ld", room->QRroomaide);
+
+		CTX = dspam_init(User, 
+				 NULL,
+				 ctdl_dspam_dir, 
+				 DSM_PROCESS, 
+				 DSF_SIGNATURE | DSF_NOISE);
+	}
+	/// else -> todo: global user for public rooms etc.
+	if (CTX == NULL)
+	{
+		lprintf(CTDL_CRIT, "ERROR: dspam_init failed!\n");
+		return ERROR + INTERNAL_ERROR;
+	}
+	/* Use graham and robinson algorithms, graham's p-values */
+	CTX->algorithms = DSA_GRAHAM | DSA_BURTON | DSP_GRAHAM;
+
+	/* Use CHAIN tokenizer */
+	CTX->tokenizer = DSZ_CHAIN;
+
+	CtdlForEachMessage(MSGS_GT, NULL, NULL, NULL, NULL,
+			   dspam_do_msg,
+			   (void *) &CTX);
+
+	return 0;
+}
+
+void serv_dspam_shutdown (void)
+{
+	libdspam_shutdown ();
+}
+#endif	/* HAVE_LIBDSPAM */
+
+CTDL_MODULE_INIT(dspam)
+{
+	if (!threading)
+	{
+#ifdef HAVE_LIBDSPAM
+
+		ctdl_dspam_init();
+		CtdlRegisterCleanupHook(serv_dspam_shutdown);
+		CtdlRegisterProtoHook(cmd_tspam, "SPAM", "Tag Message as Spam/Ham to learn DSPAM");
+
+	        CtdlRegisterRoomHook(serv_dspam_room);
+
+        	///CtdlRegisterSessionHook(perform_dspam_processing, EVT_HOUSE);
+
+#else	/* HAVE_LIBDSPAM */
+
+		lprintf(CTDL_INFO, "This server is missing libdspam Spam filtering will be disabled.\n");
+
+#endif	/* HAVE_LIBDSPAM */
+	}
+	
+        /* return our Subversion id for the Log */
+	return "$Id: serv_dspam.c 5876 2007-12-10 23:22:03Z dothebart $";
+}
+