--- /dev/null
+/*
+ * $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 $";
+}
+
projects / citadel.git / blobdiff