-/* $Cambridge: exim/src/src/spam.c,v 1.18 2010/06/05 11:13:30 pdp Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
uschar spam_score_buffer[16];
uschar spam_score_int_buffer[16];
uschar spam_bar_buffer[128];
+uschar spam_action_buffer[32];
uschar spam_report_buffer[32600];
uschar prev_user_name[128] = "";
int spam_ok = 0;
int spam_rc = 0;
uschar *prev_spamd_address_work = NULL;
-int spam(uschar **listptr) {
- int sep = 0;
- uschar *list = *listptr;
- uschar *user_name;
- uschar user_name_buffer[128];
- unsigned long mbox_size;
- FILE *mbox_file;
- int spamd_sock;
- uschar spamd_buffer[32600];
- int i, j, offset, result;
- uschar spamd_version[8];
- uschar spamd_score_char;
- double spamd_threshold, spamd_score;
- int spamd_report_offset;
- uschar *p,*q;
- int override = 0;
- time_t start;
- size_t read, wrote;
- struct sockaddr_un server;
-#ifndef NO_POLL_H
- struct pollfd pollfd;
-#else /* Patch posted by Erik ? for OS X */
- struct timeval select_tv; /* and applied by PH */
- fd_set select_fd;
-#endif
- uschar *spamd_address_work;
-
- /* stop compiler warning */
- result = 0;
-
- /* find the username from the option list */
- if ((user_name = string_nextinlist(&list, &sep,
- user_name_buffer,
- sizeof(user_name_buffer))) == NULL) {
- /* no username given, this means no scanning should be done */
- return FAIL;
- };
-
- /* if username is "0" or "false", do not scan */
- if ( (Ustrcmp(user_name,"0") == 0) ||
- (strcmpic(user_name,US"false") == 0) ) {
- return FAIL;
- };
-
- /* if there is an additional option, check if it is "true" */
- if (strcmpic(list,US"true") == 0) {
- /* in that case, always return true later */
- override = 1;
- };
-
- /* expand spamd_address if needed */
- if (*spamd_address == '$') {
- spamd_address_work = expand_string(spamd_address);
- if (spamd_address_work == NULL) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spamassassin acl condition: spamd_address starts with $, but expansion failed: %s", expand_string_message);
- return DEFER;
- }
+static const uschar * loglabel = US"spam acl condition:";
+
+
+static int
+spamd_param_init(spamd_address_container *spamd)
+{
+/* default spamd server weight, time and backup value */
+spamd->is_failed = FALSE;
+spamd->is_backup = FALSE;
+spamd->weight = SPAMD_WEIGHT;
+spamd->timeout = SPAMD_TIMEOUT;
+spamd->retry = 0;
+return 0;
+}
+
+
+static int
+spamd_param(const uschar *param, spamd_address_container *spamd)
+{
+static int timesinceday = -1;
+const uschar * s;
+const uschar * name;
+
+/* check backup parameter */
+if (Ustrcmp(param, "backup") == 0)
+ {
+ spamd->is_backup = TRUE;
+ return 0; /* OK */
+ }
+
+/*XXX more clever parsing could discard embedded spaces? */
+
+/* check weight parameter */
+if (sscanf(param, "weight=%u", &spamd->weight))
+ {
+ if (spamd->weight == 0) /* this server disabled: skip it */
+ return 1;
+ return 0; /* OK */
}
+
+/* check time parameter */
+if (Ustrncmp(param, "time=", 5) == 0)
+ {
+ unsigned int start_h = 0, start_m = 0, start_s = 0;
+ unsigned int end_h = 24, end_m = 0, end_s = 0;
+ unsigned int time_start, time_end;
+ const uschar * end_string;
+
+ name = US"time";
+ s = param+5;
+ if ((end_string = Ustrchr(s, '-')))
+ {
+ end_string++;
+ if ( sscanf(CS end_string, "%u.%u.%u", &end_h, &end_m, &end_s) == 0
+ || sscanf(CS s, "%u.%u.%u", &start_h, &start_m, &start_s) == 0
+ )
+ goto badval;
+ }
else
- spamd_address_work = spamd_address;
+ goto badval;
+
+ if (timesinceday < 0)
+ {
+ time_t now = time(NULL);
+ struct tm *tmp = localtime(&now);
+ timesinceday = tmp->tm_hour*3600 + tmp->tm_min*60 + tmp->tm_sec;
+ }
+
+ time_start = start_h*3600 + start_m*60 + start_s;
+ time_end = end_h*3600 + end_m*60 + end_s;
+
+ if (timesinceday < time_start || timesinceday >= time_end)
+ return 1; /* skip spamd server */
- /* check if previous spamd_address was expanded and has changed. dump cached results if so */
- if ( spam_ok && ( prev_spamd_address_work != NULL) && (Ustrcmp(prev_spamd_address_work, spamd_address_work) != 0)) {
- spam_ok = 0;
+ return 0; /* OK */
}
- /* if we scanned for this username last time, just return */
- if ( spam_ok && ( Ustrcmp(prev_user_name, user_name) == 0 ) ) {
- if (override)
- return OK;
- else
- return spam_rc;
- };
+if (Ustrcmp(param, "variant=rspamd") == 0)
+ {
+ spamd->is_rspamd = TRUE;
+ return 0;
+ }
- /* make sure the eml mbox file is spooled up */
- mbox_file = spool_mbox(&mbox_size, NULL);
+if (Ustrncmp(param, "tmo=", 4) == 0)
+ {
+ int sec = readconf_readtime((s = param+4), '\0', FALSE);
+ name = US"timeout";
+ if (sec < 0)
+ goto badval;
+ spamd->timeout = sec;
+ return 0;
+ }
- if (mbox_file == NULL) {
- /* error while spooling */
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: error while creating mbox spool file");
- return DEFER;
- };
-
- start = time(NULL);
-
- /* socket does not start with '/' -> network socket */
- if (*spamd_address_work != '/') {
- int num_servers = 0;
- int current_server;
- uschar *address = NULL;
- uschar *spamd_address_list_ptr = spamd_address_work;
- uschar address_buffer[256];
- spamd_address_container * spamd_address_vector[32];
-
- /* Check how many spamd servers we have
- and register their addresses */
- while ((address = string_nextinlist(&spamd_address_list_ptr, &sep,
- address_buffer,
- sizeof(address_buffer))) != NULL) {
-
- /* Potential memory leak as we never free the store. */
- spamd_address_container *this_spamd =
- (spamd_address_container *)store_get(sizeof(spamd_address_container));
-
- /* grok spamd address and port */
- if( sscanf(CS address, "%s %u", this_spamd->tcp_addr, &(this_spamd->tcp_port)) != 2 ) {
- log_write(0, LOG_MAIN,
- "spam acl condition: warning - invalid spamd address: '%s'", address);
- continue;
- };
-
- spamd_address_vector[num_servers] = this_spamd;
- num_servers++;
- if (num_servers > 31)
- break;
- };
-
- /* check if we have at least one server */
- if (!num_servers) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: no useable spamd server addresses in spamd_address configuration option.");
- (void)fclose(mbox_file);
- return DEFER;
- };
-
- while ( num_servers > 0 ) {
- int i;
-
- /* Randomly pick a server to try */
- current_server = random_number( num_servers );
-
- debug_printf("trying server %s, port %u\n",
- spamd_address_vector[current_server]->tcp_addr,
- spamd_address_vector[current_server]->tcp_port);
-
- /* contact a spamd */
- if ( (spamd_sock = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: error creating IP socket for spamd");
- (void)fclose(mbox_file);
- return DEFER;
- };
-
- if (ip_connect( spamd_sock,
- AF_INET,
- spamd_address_vector[current_server]->tcp_addr,
- spamd_address_vector[current_server]->tcp_port,
- 5 ) > -1) {
- /* connection OK */
- break;
- };
+if (Ustrncmp(param, "retry=", 6) == 0)
+ {
+ int sec = readconf_readtime((s = param+6), '\0', FALSE);
+ name = US"retry";
+ if (sec < 0)
+ goto badval;
+ spamd->retry = sec;
+ return 0;
+ }
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: warning - spamd connection to %s, port %u failed: %s",
- spamd_address_vector[current_server]->tcp_addr,
- spamd_address_vector[current_server]->tcp_port,
- strerror(errno));
+log_write(0, LOG_MAIN, "%s warning - invalid spamd parameter: '%s'",
+ loglabel, param);
+return -1; /* syntax error */
- (void)close(spamd_sock);
+badval:
+ log_write(0, LOG_MAIN,
+ "%s warning - invalid spamd %s value: '%s'", loglabel, name, s);
+ return -1; /* syntax error */
+}
- /* Remove the server from the list. XXX We should free the memory */
- num_servers--;
- for( i = current_server; i < num_servers; i++ )
- spamd_address_vector[i] = spamd_address_vector[i+1];
- }
- if ( num_servers == 0 ) {
- log_write(0, LOG_MAIN|LOG_PANIC, "spam acl condition: all spamd servers failed");
- (void)fclose(mbox_file);
- return DEFER;
+static int
+spamd_get_server(spamd_address_container **spamds, int num_servers)
+{
+unsigned int i;
+long rnd, weights = 0;
+static BOOL srandomed = 0;
+BOOL usebackup = FALSE;
+
+for (;;)
+ {
+ /* seedup, if we have only 1 server */
+ if (num_servers == 1)
+ return (spamds[0]->is_failed ? -1 : 0);
+
+ /* init ranmod */
+ if (!srandomed)
+ {
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ srandom((unsigned int)(tv.tv_usec/1000));
+ srandomed = TRUE;
}
+ /* get sum of all weights */
+ for (i = 0; i < num_servers; i++)
+ if (!spamds[i]->is_failed && spamds[i]->is_backup == usebackup)
+ weights += spamds[i]->weight;
+
+ if (weights != 0)
+ break;
+ if (usebackup) /* all servers failed (backups too) */
+ return -1;
+ usebackup = TRUE;
}
- else {
- /* open the local socket */
- if ((spamd_sock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "malware acl condition: spamd: unable to acquire socket (%s)",
- strerror(errno));
- (void)fclose(mbox_file);
- return DEFER;
+rnd = random() % weights;
+
+for (i = 0; i < num_servers; i++)
+ if (!spamds[i]->is_failed && spamds[i]->is_backup == usebackup)
+ if ((rnd -= spamds[i]->weight) < 0)
+ return i;
+
+log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s unknown error (memory/cpu corruption?)", loglabel);
+return -1;
+}
+
+
+int
+spam(const uschar **listptr)
+{
+int sep = 0;
+const uschar *list = *listptr;
+uschar *user_name;
+uschar user_name_buffer[128];
+unsigned long mbox_size;
+FILE *mbox_file;
+int spamd_sock = -1;
+uschar spamd_buffer[32600];
+int i, j, offset, result;
+uschar spamd_version[8];
+uschar spamd_short_result[8];
+uschar spamd_score_char;
+double spamd_threshold, spamd_score, spamd_reject_score;
+int spamd_report_offset;
+uschar *p,*q;
+int override = 0;
+time_t start;
+size_t read, wrote;
+struct sockaddr_un server;
+#ifndef NO_POLL_H
+struct pollfd pollfd;
+#else /* Patch posted by Erik ? for OS X */
+struct timeval select_tv; /* and applied by PH */
+fd_set select_fd;
+#endif
+uschar *spamd_address_work;
+spamd_address_container * sd;
+
+/* stop compiler warning */
+result = 0;
+
+/* find the username from the option list */
+if ((user_name = string_nextinlist(&list, &sep,
+ user_name_buffer,
+ sizeof(user_name_buffer))) == NULL)
+ {
+ /* no username given, this means no scanning should be done */
+ return FAIL;
+ }
+
+/* if username is "0" or "false", do not scan */
+if ( (Ustrcmp(user_name,"0") == 0) ||
+ (strcmpic(user_name,US"false") == 0) )
+ return FAIL;
+
+/* if there is an additional option, check if it is "true" */
+if (strcmpic(list,US"true") == 0)
+ /* in that case, always return true later */
+ override = 1;
+
+/* expand spamd_address if needed */
+if (*spamd_address == '$')
+ {
+ spamd_address_work = expand_string(spamd_address);
+ if (spamd_address_work == NULL)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s spamd_address starts with $, but expansion failed: %s",
+ loglabel, expand_string_message);
+ return DEFER;
}
+ }
+else
+ spamd_address_work = spamd_address;
+
+HDEBUG(D_acl) debug_printf("spamd: addrlist '%s'\n", spamd_address_work);
+
+/* check if previous spamd_address was expanded and has changed. dump cached results if so */
+if ( spam_ok
+ && prev_spamd_address_work != NULL
+ && Ustrcmp(prev_spamd_address_work, spamd_address_work) != 0
+ )
+ spam_ok = 0;
+
+/* if we scanned for this username last time, just return */
+if (spam_ok && Ustrcmp(prev_user_name, user_name) == 0)
+ return override ? OK : spam_rc;
+
+/* make sure the eml mbox file is spooled up */
+mbox_file = spool_mbox(&mbox_size, NULL);
+
+if (mbox_file == NULL)
+ {
+ /* error while spooling */
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s error while creating mbox spool file", loglabel);
+ return DEFER;
+ }
- server.sun_family = AF_UNIX;
- Ustrcpy(server.sun_path, spamd_address_work);
+start = time(NULL);
+
+ {
+ int num_servers = 0;
+ int current_server;
+ uschar *address;
+ const uschar *spamd_address_list_ptr = spamd_address_work;
+ spamd_address_container * spamd_address_vector[32];
+
+ /* Check how many spamd servers we have
+ and register their addresses */
+ while ((address = string_nextinlist(&spamd_address_list_ptr, &sep,
+ NULL, 0)) != NULL)
+ {
+ const uschar * sublist;
+ int sublist_sep = -(int)' '; /* default space-sep */
+ unsigned args;
+ uschar * s;
+
+ HDEBUG(D_acl) debug_printf("spamd: addr entry '%s'\n", address);
+ sd = (spamd_address_container *)store_get(sizeof(spamd_address_container));
+
+ for (sublist = address, args = 0, spamd_param_init(sd);
+ s = string_nextinlist(&sublist, &sublist_sep, NULL, 0);
+ args++
+ )
+ {
+ HDEBUG(D_acl) debug_printf("spamd: addr parm '%s'\n", s);
+ switch (args)
+ {
+ case 0: sd->hostspec = s;
+ if (*s == '/') args++; /* local; no port */
+ break;
+ case 1: sd->hostspec = string_sprintf("%s %s", sd->hostspec, s);
+ break;
+ default: spamd_param(s, sd);
+ break;
+ }
+ }
+ if (args < 2)
+ {
+ log_write(0, LOG_MAIN,
+ "%s warning - invalid spamd address: '%s'", loglabel, address);
+ continue;
+ }
- if (connect(spamd_sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "malware acl condition: spamd: unable to connect to UNIX socket %s (%s)",
- spamd_address_work, strerror(errno) );
- (void)fclose(mbox_file);
- (void)close(spamd_sock);
- return DEFER;
+ spamd_address_vector[num_servers] = sd;
+ if (++num_servers > 31)
+ break;
+ }
+
+ /* check if we have at least one server */
+ if (!num_servers)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s no useable spamd server addresses in spamd_address configuration option.",
+ loglabel);
+ goto defer;
}
+ current_server = spamd_get_server(spamd_address_vector, num_servers);
+ sd = spamd_address_vector[current_server];
+ for(;;)
+ {
+ uschar * errstr;
+
+ debug_printf("trying server %s\n", sd->hostspec);
+
+ for (;;)
+ {
+ if ( (spamd_sock = ip_streamsocket(sd->hostspec, &errstr, 5)) >= 0
+ || sd->retry <= 0
+ )
+ break;
+ debug_printf("server %s: retry conn\n", sd->hostspec);
+ while (sd->retry > 0) sd->retry = sleep(sd->retry);
+ }
+ if (spamd_sock >= 0)
+ break;
+
+ log_write(0, LOG_MAIN, "%s spamd: %s", loglabel, errstr);
+ sd->is_failed = TRUE;
+
+ current_server = spamd_get_server(spamd_address_vector, num_servers);
+ if (current_server < 0)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC, "%s all spamd servers failed", loglabel);
+ goto defer;
+ }
+ sd = spamd_address_vector[current_server];
+ }
}
- /* now we are connected to spamd on spamd_sock */
- (void)string_format(spamd_buffer,
- sizeof(spamd_buffer),
- "REPORT SPAMC/1.2\r\nUser: %s\r\nContent-length: %ld\r\n\r\n",
- user_name,
- mbox_size);
+if (spamd_sock == -1)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "programming fault, spamd_sock unexpectedly unset");
+ goto defer;
+ }
+(void)fcntl(spamd_sock, F_SETFL, O_NONBLOCK);
+/* now we are connected to spamd on spamd_sock */
+if (sd->is_rspamd)
+ { /* rspamd variant */
+ uschar *req_str;
+ const uschar * helo;
+ const uschar * fcrdns;
+ const uschar * authid;
+
+ req_str = string_sprintf("CHECK RSPAMC/1.3\r\nContent-length: %lu\r\n"
+ "Queue-Id: %s\r\nFrom: <%s>\r\nRecipient-Number: %d\r\n", mbox_size,
+ message_id, sender_address, recipients_count);
+ for (i = 0; i < recipients_count; i ++)
+ req_str = string_sprintf("%sRcpt: <%s>\r\n", req_str, recipients_list[i].address);
+ if ((helo = expand_string(US"$sender_helo_name")) != NULL && *helo != '\0')
+ req_str = string_sprintf("%sHelo: %s\r\n", req_str, helo);
+ if ((fcrdns = expand_string(US"$sender_host_name")) != NULL && *fcrdns != '\0')
+ req_str = string_sprintf("%sHostname: %s\r\n", req_str, fcrdns);
+ if (sender_host_address != NULL)
+ req_str = string_sprintf("%sIP: %s\r\n", req_str, sender_host_address);
+ if ((authid = expand_string(US"$authenticated_id")) != NULL && *authid != '\0')
+ req_str = string_sprintf("%sUser: %s\r\n", req_str, authid);
+ req_str = string_sprintf("%s\r\n", req_str);
+ wrote = send(spamd_sock, req_str, Ustrlen(req_str), 0);
+ }
+else
+ { /* spamassassin variant */
+ (void)string_format(spamd_buffer,
+ sizeof(spamd_buffer),
+ "REPORT SPAMC/1.2\r\nUser: %s\r\nContent-length: %ld\r\n\r\n",
+ user_name,
+ mbox_size);
/* send our request */
- if (send(spamd_sock, spamd_buffer, Ustrlen(spamd_buffer), 0) < 0) {
- (void)close(spamd_sock);
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: spamd send failed: %s", strerror(errno));
- (void)fclose(mbox_file);
- (void)close(spamd_sock);
- return DEFER;
- };
-
- /* now send the file */
- /* spamd sometimes accepts conections but doesn't read data off
- * the connection. We make the file descriptor non-blocking so
- * that the write will only write sufficient data without blocking
- * and we poll the desciptor to make sure that we can write without
- * blocking. Short writes are gracefully handled and if the whole
- * trasaction takes too long it is aborted.
- * Note: poll() is not supported in OSX 10.2 and is reported to be
- * broken in more recent versions (up to 10.4).
- */
+ wrote = send(spamd_sock, spamd_buffer, Ustrlen(spamd_buffer), 0);
+ }
+
+if (wrote == -1)
+ {
+ (void)close(spamd_sock);
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s spamd send failed: %s", loglabel, strerror(errno));
+ goto defer;
+ }
+
+/* now send the file */
+/* spamd sometimes accepts conections but doesn't read data off
+ * the connection. We make the file descriptor non-blocking so
+ * that the write will only write sufficient data without blocking
+ * and we poll the desciptor to make sure that we can write without
+ * blocking. Short writes are gracefully handled and if the whole
+ * trasaction takes too long it is aborted.
+ * Note: poll() is not supported in OSX 10.2 and is reported to be
+ * broken in more recent versions (up to 10.4).
+ */
#ifndef NO_POLL_H
- pollfd.fd = spamd_sock;
- pollfd.events = POLLOUT;
+pollfd.fd = spamd_sock;
+pollfd.events = POLLOUT;
#endif
- (void)fcntl(spamd_sock, F_SETFL, O_NONBLOCK);
- do {
- read = fread(spamd_buffer,1,sizeof(spamd_buffer),mbox_file);
- if (read > 0) {
- offset = 0;
+(void)fcntl(spamd_sock, F_SETFL, O_NONBLOCK);
+do
+ {
+ read = fread(spamd_buffer,1,sizeof(spamd_buffer),mbox_file);
+ if (read > 0)
+ {
+ offset = 0;
again:
#ifndef NO_POLL_H
- result = poll(&pollfd, 1, 1000);
+ result = poll(&pollfd, 1, 1000);
/* Patch posted by Erik ? for OS X and applied by PH */
#else
- select_tv.tv_sec = 1;
- select_tv.tv_usec = 0;
- FD_ZERO(&select_fd);
- FD_SET(spamd_sock, &select_fd);
- result = select(spamd_sock+1, NULL, &select_fd, NULL, &select_tv);
+ select_tv.tv_sec = 1;
+ select_tv.tv_usec = 0;
+ FD_ZERO(&select_fd);
+ FD_SET(spamd_sock, &select_fd);
+ result = select(spamd_sock+1, NULL, &select_fd, NULL, &select_tv);
#endif
/* End Erik's patch */
- if (result == -1 && errno == EINTR)
- goto again;
- else if (result < 1) {
- if (result == -1)
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: %s on spamd socket", strerror(errno));
- else {
- if (time(NULL) - start < SPAMD_TIMEOUT)
- goto again;
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: timed out writing spamd socket");
- }
- (void)close(spamd_sock);
- (void)fclose(mbox_file);
- return DEFER;
+ if (result == -1 && errno == EINTR)
+ goto again;
+ else if (result < 1)
+ {
+ if (result == -1)
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s %s on spamd socket", loglabel, strerror(errno));
+ else
+ {
+ if (time(NULL) - start < sd->timeout)
+ goto again;
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s timed out writing spamd socket", loglabel);
+ }
+ (void)close(spamd_sock);
+ goto defer;
}
- wrote = send(spamd_sock,spamd_buffer + offset,read - offset,0);
- if (wrote == -1)
+ wrote = send(spamd_sock,spamd_buffer + offset,read - offset,0);
+ if (wrote == -1)
{
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: %s on spamd socket", strerror(errno));
- (void)close(spamd_sock);
- (void)fclose(mbox_file);
- return DEFER;
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s %s on spamd socket", loglabel, strerror(errno));
+ (void)close(spamd_sock);
+ goto defer;
}
- if (offset + wrote != read) {
- offset += wrote;
- goto again;
+ if (offset + wrote != read)
+ {
+ offset += wrote;
+ goto again;
}
}
}
- while (!feof(mbox_file) && !ferror(mbox_file));
- if (ferror(mbox_file)) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: error reading spool file: %s", strerror(errno));
- (void)close(spamd_sock);
- (void)fclose(mbox_file);
- return DEFER;
- }
+while (!feof(mbox_file) && !ferror(mbox_file));
- (void)fclose(mbox_file);
+if (ferror(mbox_file))
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s error reading spool file: %s", loglabel, strerror(errno));
+ (void)close(spamd_sock);
+ goto defer;
+ }
- /* we're done sending, close socket for writing */
- shutdown(spamd_sock,SHUT_WR);
-
- /* read spamd response using what's left of the timeout.
- */
- memset(spamd_buffer, 0, sizeof(spamd_buffer));
- offset = 0;
- while((i = ip_recv(spamd_sock,
- spamd_buffer + offset,
- sizeof(spamd_buffer) - offset - 1,
- SPAMD_TIMEOUT - time(NULL) + start)) > 0 ) {
- offset += i;
+(void)fclose(mbox_file);
+
+/* we're done sending, close socket for writing */
+shutdown(spamd_sock,SHUT_WR);
+
+/* read spamd response using what's left of the timeout. */
+memset(spamd_buffer, 0, sizeof(spamd_buffer));
+offset = 0;
+while ((i = ip_recv(spamd_sock,
+ spamd_buffer + offset,
+ sizeof(spamd_buffer) - offset - 1,
+ sd->timeout - time(NULL) + start)) > 0 )
+ offset += i;
+
+/* error handling */
+if (i <= 0 && errno != 0)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s error reading from spamd socket: %s", loglabel, strerror(errno));
+ (void)close(spamd_sock);
+ return DEFER;
}
- /* error handling */
- if((i <= 0) && (errno != 0)) {
+/* reading done */
+(void)close(spamd_sock);
+
+if (sd->is_rspamd)
+ { /* rspamd variant of reply */
+ int r;
+ if ((r = sscanf(CS spamd_buffer,
+ "RSPAMD/%7s 0 EX_OK\r\nMetric: default; %7s %lf / %lf / %lf\r\n%n",
+ spamd_version, spamd_short_result, &spamd_score, &spamd_threshold,
+ &spamd_reject_score, &spamd_report_offset)) != 5)
+ {
log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: error reading from spamd socket: %s", strerror(errno));
- (void)close(spamd_sock);
+ "%s cannot parse spamd output: %d", loglabel, r);
return DEFER;
- }
-
- /* reading done */
- (void)close(spamd_sock);
-
- /* dig in the spamd output and put the report in a multiline header, if requested */
- if( sscanf(CS spamd_buffer,"SPAMD/%7s 0 EX_OK\r\nContent-length: %*u\r\n\r\n%lf/%lf\r\n%n",
- spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {
-
- /* try to fall back to pre-2.50 spamd output */
- if( sscanf(CS spamd_buffer,"SPAMD/%7s 0 EX_OK\r\nSpam: %*s ; %lf / %lf\r\n\r\n%n",
- spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spam acl condition: cannot parse spamd output");
- return DEFER;
- };
- };
-
- /* Create report. Since this is a multiline string,
- we must hack it into shape first */
+ }
+ /* now parse action */
p = &spamd_buffer[spamd_report_offset];
- q = spam_report_buffer;
- while (*p != '\0') {
- /* skip \r */
- if (*p == '\r') {
- p++;
- continue;
- };
- *q = *p;
- q++;
- if (*p == '\n') {
- /* add an extra space after the newline to ensure
- that it is treated as a header continuation line */
- *q = ' ';
- q++;
- };
- p++;
- };
- /* NULL-terminate */
- *q = '\0';
- q--;
- /* cut off trailing leftovers */
- while (*q <= ' ') {
+
+ if (Ustrncmp(p, "Action: ", sizeof("Action: ") - 1) == 0)
+ {
+ p += sizeof("Action: ") - 1;
+ q = &spam_action_buffer[0];
+ while (*p && *p != '\r' && (q - spam_action_buffer) < sizeof(spam_action_buffer) - 1)
+ *q++ = *p++;
*q = '\0';
- q--;
- };
- spam_report = spam_report_buffer;
-
- /* create spam bar */
- spamd_score_char = spamd_score > 0 ? '+' : '-';
- j = abs((int)(spamd_score));
- i = 0;
- if( j != 0 ) {
- while((i < j) && (i <= MAX_SPAM_BAR_CHARS))
- spam_bar_buffer[i++] = spamd_score_char;
- }
- else{
- spam_bar_buffer[0] = '/';
- i = 1;
- }
- spam_bar_buffer[i] = '\0';
- spam_bar = spam_bar_buffer;
-
- /* create "float" spam score */
- (void)string_format(spam_score_buffer, sizeof(spam_score_buffer),"%.1f", spamd_score);
- spam_score = spam_score_buffer;
-
- /* create "int" spam score */
- j = (int)((spamd_score + 0.001)*10);
- (void)string_format(spam_score_int_buffer, sizeof(spam_score_int_buffer), "%d", j);
- spam_score_int = spam_score_int_buffer;
-
- /* compare threshold against score */
- if (spamd_score >= spamd_threshold) {
- /* spam as determined by user's threshold */
- spam_rc = OK;
+ }
}
- else {
- /* not spam */
- spam_rc = FAIL;
- };
-
- /* remember expanded spamd_address if needed */
- if (spamd_address_work != spamd_address) {
- prev_spamd_address_work = string_copy(spamd_address_work);
+else
+ { /* spamassassin */
+ /* dig in the spamd output and put the report in a multiline header,
+ if requested */
+ if (sscanf(CS spamd_buffer,
+ "SPAMD/%7s 0 EX_OK\r\nContent-length: %*u\r\n\r\n%lf/%lf\r\n%n",
+ spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3)
+ {
+ /* try to fall back to pre-2.50 spamd output */
+ if (sscanf(CS spamd_buffer,
+ "SPAMD/%7s 0 EX_OK\r\nSpam: %*s ; %lf / %lf\r\n\r\n%n",
+ spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "%s cannot parse spamd output", loglabel);
+ return DEFER;
+ }
+ }
+
+ Ustrcpy(spam_action_buffer,
+ spamd_score >= spamd_threshold ? "reject" : "no action");
}
- /* remember user name and "been here" for it */
- Ustrcpy(prev_user_name, user_name);
- spam_ok = 1;
- if (override) {
- /* always return OK, no matter what the score */
- return OK;
+/* Create report. Since this is a multiline string,
+we must hack it into shape first */
+p = &spamd_buffer[spamd_report_offset];
+q = spam_report_buffer;
+while (*p != '\0')
+ {
+ /* skip \r */
+ if (*p == '\r')
+ {
+ p++;
+ continue;
+ }
+ *q++ = *p;
+ if (*p++ == '\n')
+ {
+ /* add an extra space after the newline to ensure
+ that it is treated as a header continuation line */
+ *q++ = ' ';
+ }
+ }
+/* NULL-terminate */
+*q-- = '\0';
+/* cut off trailing leftovers */
+while (*q <= ' ')
+ *q-- = '\0';
+
+spam_report = spam_report_buffer;
+spam_action = spam_action_buffer;
+
+/* create spam bar */
+spamd_score_char = spamd_score > 0 ? '+' : '-';
+j = abs((int)(spamd_score));
+i = 0;
+if (j != 0)
+ while ((i < j) && (i <= MAX_SPAM_BAR_CHARS))
+ spam_bar_buffer[i++] = spamd_score_char;
+else
+ {
+ spam_bar_buffer[0] = '/';
+ i = 1;
}
- else {
- return spam_rc;
- };
+spam_bar_buffer[i] = '\0';
+spam_bar = spam_bar_buffer;
+
+/* create "float" spam score */
+(void)string_format(spam_score_buffer, sizeof(spam_score_buffer),
+ "%.1f", spamd_score);
+spam_score = spam_score_buffer;
+
+/* create "int" spam score */
+j = (int)((spamd_score + 0.001)*10);
+(void)string_format(spam_score_int_buffer, sizeof(spam_score_int_buffer),
+ "%d", j);
+spam_score_int = spam_score_int_buffer;
+
+/* compare threshold against score */
+spam_rc = spamd_score >= spamd_threshold
+ ? OK /* spam as determined by user's threshold */
+ : FAIL; /* not spam */
+
+/* remember expanded spamd_address if needed */
+if (spamd_address_work != spamd_address)
+ prev_spamd_address_work = string_copy(spamd_address_work);
+
+/* remember user name and "been here" for it */
+Ustrcpy(prev_user_name, user_name);
+spam_ok = 1;
+
+return override
+ ? OK /* always return OK, no matter what the score */
+ : spam_rc;
+
+defer:
+ (void)fclose(mbox_file);
+ return DEFER;
}
#endif
+/* vi: aw ai sw=2
+*/
projects / exim.git / blobdiff