+++ /dev/null
-/*
- * This module glues libDSpam to the Citadel server in order to implement
- * DSPAM Spamchecking
- *
- * Copyright (c) 2012 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.
- *
- *
- *
- *
- */
-
-#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 "database.h"
-#include "msgbase.h"
-#include "internet_addressing.h"
-
-
-#include "ctdl_module.h"
-
-
-#ifdef HAVE_LIBDSPAM
-#define CONFIG_DEFAULT file_dpsam_conf
-#define LOGDIR file_dspam_log
-
-
-//#define HAVE_CONFIG_H
-#include <dspam/libdspam.h>
-//#define HAVE_CONFIG_H
-
-typedef struct stringlist stringlist;
-
-struct stringlist {
- char *Str;
- long len;
- stringlist *Next;
-};
-
-
-/*
- * 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) {
- char buf[SIZ];
- long len;
- long count;
- stringlist *Messages;
- stringlist *NextMsg;
-
- Messages = NULL;
- NextMsg = NULL;
- count = 0;
- if (CtdlAccessCheck(ac_room_aide)) return;
- if (atoi(argbuf) == 0) {
- cprintf("%d Ok.\n", CIT_OK);
- return;
- }
- cprintf("%d Send info...\n", SEND_LISTING);
-
- do {
- len = client_getln(buf, sizeof buf);
- if (strcmp(buf, "000")) {
- if (Messages == NULL) {
- Messages = malloc (sizeof (stringlist));
- NextMsg = Messages;
- }
- else {
- Messages->Next = malloc (sizeof (stringlist));
- NextMsg = NextMsg->Next;
- }
- NextMsg->Next = NULL;
- NextMsg->Str = malloc (len+1);
- NextMsg->len = len;
- memcpy (NextMsg->Str, buf, len + 1);/// maybe split spam /ham per line?
- count++;
- }
- } while (strcmp(buf, "000"));
-/// is there a way to filter foreachmessage by a list?
- /* 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?
- /// todo: send answer listing...
-}
-
-
-
-void ctdl_dspam_init(void) {
-
-/// libdspam_init("bdb");/* <which database backend do we prefer? */
-
-}
-
-void dspam_do_msg(long msgnum, void *userdata)
-{
- char *msgtext;
- 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;
-
-
- /* Message */
- CC->redirect_buffer = malloc(SIZ);
- CC->redirect_len = 0;
- CC->redirect_alloc = SIZ;
- CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ALL, 0, 1, 0);
- msgtext = CC->redirect_buffer;
-// don't need? msglen = CC->redirect_len;
- CC->redirect_buffer = NULL;
- CC->redirect_len = 0;
- CC->redirect_alloc = 0;
-
- /* Call DSPAM's processor with the message text */
- if (dspam_process (CTX, msgtext) != 0)
- {
- free(msgtext);
- syslog(LOG_CRIT, "ERROR: dspam_process failed");
- return;
- }
- if (CTX->signature == NULL)
- {
- syslog(LOG_CRIT,"No signature provided\n");
- }
- else
- {
-/* Copy to a safe place */
- // TODO: len -> cm_fields?
- msg->cm_fields[eErrorMsg] = malloc (CTX->signature->length * 2);
- size_t len = CtdlEncodeBase64(msg->cm_fields[eErrorMsg], CTX->signature->data, CTX->signature->length, 0);
-
- if (msg->cm_fields[eErrorMsg][len - 1] == '\n') {
- msg->cm_fields[eErrorMsg][len - 1] = '\0';
- }
- }
- free(msgtext);
-
- SIG.length = CTX->signature->length;
- /* Print processing results */
- syslog(LOG_DEBUG, "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? */
- (strstr(room->QRname, ".Mail")!=NULL))
-
- {
- char User[64];
- // maybe we should better get our realname here?
- snprintf(User, 64, "%ld", room->QRroomaide);
- extract_token(User, room->QRname, 0, '.', sizeof(User));
- CTX = dspam_init(User,
- NULL,
- ctdl_dspam_dir,
- DSM_PROCESS,
- DSF_SIGNATURE | DSF_NOISE);
- }
- else return 0;////
- /// else -> todo: global user for public rooms etc.
- if (CTX == NULL)
- {
- syslog(LOG_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, 1, NULL, NULL, NULL,
- dspam_do_msg,
- (void *) &CTX);
-
- return 0;
-}
-
-void serv_dspam_shutdown (void)
-{
- libdspam_shutdown ();
-}
-#endif /* HAVE_LIBDSPAM */
-
-CTDL_MODULE_INIT(dspam)
-{
- return "disabled.";
- 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 */
-
- syslog(LOG_INFO, "This server is missing libdspam Spam filtering will be disabled.\n");
-
-#endif /* HAVE_LIBDSPAM */
- }
-
- /* return our module name for the log */
- return "dspam";
-}
-
projects / citadel.git / blobdiff