1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
|
/*
* Copyright (c) 2009, Rambler media
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Rambler media ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Rambler BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "main.h"
#include "util.h"
#include "cfg_file.h"
#include "settings.h"
#include "message.h"
/* Max line size as it is defined in rfc2822 */
#define OUTBUFSIZ 1000
/*
* Just check if the passed message is spam or not and reply as
* described below
*/
#define MSG_CMD_CHECK "check"
/*
* Check if message is spam or not, and return score plus list
* of symbols hit
*/
#define MSG_CMD_SYMBOLS "symbols"
/*
* Check if message is spam or not, and return score plus report
*/
#define MSG_CMD_REPORT "report"
/*
* Check if message is spam or not, and return score plus report
* if the message is spam
*/
#define MSG_CMD_REPORT_IFSPAM "report_ifspam"
/*
* Ignore this message -- client opened connection then changed
*/
#define MSG_CMD_SKIP "skip"
/*
* Return a confirmation that spamd is alive
*/
#define MSG_CMD_PING "ping"
/*
* Process this message as described above and return modified message
*/
#define MSG_CMD_PROCESS "process"
/*
* spamassassin greeting:
*/
#define SPAMC_GREETING "SPAMC"
/*
* rspamd greeting:
*/
#define RSPAMC_GREETING "RSPAMC"
/*
* Headers
*/
#define CONTENT_LENGTH_HEADER "Content-Length"
#define HELO_HEADER "Helo"
#define FROM_HEADER "From"
#define IP_ADDR_HEADER "IP"
#define NRCPT_HEADER "Recipient-Number"
#define RCPT_HEADER "Rcpt"
#define SUBJECT_HEADER "Subject"
#define QUEUE_ID_HEADER "Queue-ID"
#define ERROR_HEADER "Error"
#define USER_HEADER "User"
#define PASS_HEADER "Pass"
#define DELIVER_TO_HEADER "Deliver-To"
static GList *custom_commands = NULL;
/* For default metric, dirty hack, but much faster than hash lookup */
static double default_score, default_required_score;
static inline const gchar *
rspamc_proto_str (guint ver)
{
if (ver >= 12) {
return "1.2";
}
else if (ver >= 11) {
return "1.1";
}
else {
return "1.0";
}
}
static gchar *
separate_command (f_str_t * in, gchar c)
{
gint r = 0;
gchar *p = in->begin, *b;
b = p;
while (r < in->len) {
if (*p == c) {
*p = '\0';
in->begin = p + 1;
in->len -= r + 1;
return b;
}
p++;
r++;
}
return NULL;
}
static gint
parse_command (struct worker_task *task, f_str_t * line)
{
gchar *token;
struct custom_command *cmd;
GList *cur;
task->proto_ver = 11;
token = separate_command (line, ' ');
if (line == NULL || token == NULL) {
debug_task ("bad command");
return -1;
}
switch (token[0]) {
case 'c':
case 'C':
/* check */
if (g_ascii_strcasecmp (token + 1, MSG_CMD_CHECK + 1) == 0) {
task->cmd = CMD_CHECK;
}
else {
debug_task ("bad command: %s", token);
return -1;
}
break;
case 's':
case 'S':
/* symbols, skip */
if (g_ascii_strcasecmp (token + 1, MSG_CMD_SYMBOLS + 1) == 0) {
task->cmd = CMD_SYMBOLS;
}
else if (g_ascii_strcasecmp (token + 1, MSG_CMD_SKIP + 1) == 0) {
task->cmd = CMD_SKIP;
}
else {
debug_task ("bad command: %s", token);
return -1;
}
break;
case 'p':
case 'P':
/* ping, process */
if (g_ascii_strcasecmp (token + 1, MSG_CMD_PING + 1) == 0) {
task->cmd = CMD_PING;
}
else if (g_ascii_strcasecmp (token + 1, MSG_CMD_PROCESS + 1) == 0) {
task->cmd = CMD_PROCESS;
}
else {
debug_task ("bad command: %s", token);
return -1;
}
break;
case 'r':
case 'R':
/* report, report_ifspam */
if (g_ascii_strcasecmp (token + 1, MSG_CMD_REPORT + 1) == 0) {
task->cmd = CMD_REPORT;
}
else if (g_ascii_strcasecmp (token + 1, MSG_CMD_REPORT_IFSPAM + 1) == 0) {
task->cmd = CMD_REPORT_IFSPAM;
}
else {
debug_task ("bad command: %s", token);
return -1;
}
break;
default:
cur = custom_commands;
while (cur) {
cmd = cur->data;
if (g_ascii_strcasecmp (token, cmd->name) == 0) {
task->cmd = CMD_OTHER;
task->custom_cmd = cmd;
break;
}
cur = g_list_next (cur);
}
if (cur == NULL) {
debug_task ("bad command: %s", token);
return -1;
}
break;
}
if (g_ascii_strncasecmp (line->begin, RSPAMC_GREETING, sizeof (RSPAMC_GREETING) - 1) == 0) {
task->proto = RSPAMC_PROTO;
task->proto_ver = 10;
if (*(line->begin + sizeof (RSPAMC_GREETING) - 1) == '/') {
/* Extract protocol version */
token = line->begin + sizeof (RSPAMC_GREETING);
if (strncmp (token, RSPAMC_PROTO_1_1, sizeof (RSPAMC_PROTO_1_1) - 1) == 0) {
task->proto_ver = 11;
}
else if (strncmp (token, RSPAMC_PROTO_1_2, sizeof (RSPAMC_PROTO_1_2) - 1) == 0) {
task->proto_ver = 12;
}
}
}
else if (g_ascii_strncasecmp (line->begin, SPAMC_GREETING, sizeof (SPAMC_GREETING) - 1) == 0) {
task->proto = SPAMC_PROTO;
}
else {
return -1;
}
task->state = READ_HEADER;
return 0;
}
static gint
parse_header (struct worker_task *task, f_str_t * line)
{
gchar *headern, *err, *tmp;
/* Check end of headers */
if (line->len == 0) {
debug_task ("got empty line, assume it as end of headers");
if (task->cmd == CMD_PING || task->cmd == CMD_SKIP) {
task->state = WRITE_REPLY;
}
else {
if (task->content_length > 0) {
rspamd_set_dispatcher_policy (task->dispatcher, BUFFER_CHARACTER, task->content_length);
task->state = READ_MESSAGE;
}
else {
task->last_error = "Unknown content length";
task->error_code = RSPAMD_LENGTH_ERROR;
task->state = WRITE_ERROR;
return -1;
}
}
return 0;
}
headern = separate_command (line, ':');
if (line == NULL || headern == NULL) {
return -1;
}
/* Eat whitespaces */
g_strstrip (headern);
fstrstrip (line);
switch (headern[0]) {
case 'c':
case 'C':
/* content-length */
if (g_ascii_strncasecmp (headern, CONTENT_LENGTH_HEADER, sizeof (CONTENT_LENGTH_HEADER) - 1) == 0) {
if (task->content_length == 0) {
tmp = memory_pool_fstrdup (task->task_pool, line);
task->content_length = strtoul (tmp, &err, 10);
debug_task ("read Content-Length header, value: %ul", (guint32)task->content_length);
}
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'd':
case 'D':
/* Deliver-To */
if (g_ascii_strncasecmp (headern, DELIVER_TO_HEADER, sizeof (DELIVER_TO_HEADER) - 1) == 0) {
task->deliver_to = memory_pool_fstrdup (task->task_pool, line);
debug_task ("read deliver-to header, value: %s", task->deliver_to);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'h':
case 'H':
/* helo */
if (g_ascii_strncasecmp (headern, HELO_HEADER, sizeof (HELO_HEADER) - 1) == 0) {
task->helo = memory_pool_fstrdup (task->task_pool, line);
debug_task ("read helo header, value: %s", task->helo);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'f':
case 'F':
/* from */
if (g_ascii_strncasecmp (headern, FROM_HEADER, sizeof (FROM_HEADER) - 1) == 0) {
task->from = memory_pool_fstrdup (task->task_pool, line);
debug_task ("read from header, value: %s", task->from);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'q':
case 'Q':
/* Queue id */
if (g_ascii_strncasecmp (headern, QUEUE_ID_HEADER, sizeof (QUEUE_ID_HEADER) - 1) == 0) {
task->queue_id = memory_pool_fstrdup (task->task_pool, line);
debug_task ("read queue_id header, value: %s", task->queue_id);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'r':
case 'R':
/* rcpt */
if (g_ascii_strncasecmp (headern, RCPT_HEADER, sizeof (RCPT_HEADER) - 1) == 0) {
tmp = memory_pool_fstrdup (task->task_pool, line);
task->rcpt = g_list_prepend (task->rcpt, tmp);
debug_task ("read rcpt header, value: %s", tmp);
}
else if (g_ascii_strncasecmp (headern, NRCPT_HEADER, sizeof (NRCPT_HEADER) - 1) == 0) {
tmp = memory_pool_fstrdup (task->task_pool, line);
task->nrcpt = strtoul (tmp, &err, 10);
debug_task ("read rcpt header, value: %d", (gint)task->nrcpt);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'i':
case 'I':
/* ip_addr */
if (g_ascii_strncasecmp (headern, IP_ADDR_HEADER, sizeof (IP_ADDR_HEADER) - 1) == 0) {
tmp = memory_pool_fstrdup (task->task_pool, line);
if (!inet_aton (tmp, &task->from_addr)) {
msg_info ("bad ip header: '%s'", tmp);
return -1;
}
debug_task ("read IP header, value: %s", tmp);
}
else {
msg_info ("wrong header: %s", headern);
return -1;
}
break;
case 'p':
case 'P':
/* Pass header */
if (g_ascii_strncasecmp (headern, PASS_HEADER, sizeof (PASS_HEADER) - 1) == 0) {
if (line->len == sizeof ("all") - 1 && g_ascii_strncasecmp (line->begin, "all", sizeof ("all") - 1) == 0) {
task->pass_all_filters = TRUE;
msg_info ("pass all filters");
}
}
break;
case 's':
case 'S':
if (g_ascii_strncasecmp (headern, SUBJECT_HEADER, sizeof (SUBJECT_HEADER) - 1) == 0) {
task->subject = memory_pool_fstrdup (task->task_pool, line);
}
else {
return -1;
}
break;
case 'u':
case 'U':
if (g_ascii_strncasecmp (headern, USER_HEADER, sizeof (USER_HEADER) - 1) == 0) {
/* XXX: use this header somehow */
task->user = memory_pool_fstrdup (task->task_pool, line);
}
else {
return -1;
}
break;
default:
msg_info ("wrong header: %s", headern);
return -1;
}
return 0;
}
gint
read_rspamd_input_line (struct worker_task *task, f_str_t * line)
{
switch (task->state) {
case READ_COMMAND:
return parse_command (task, line);
break;
case READ_HEADER:
return parse_header (task, line);
break;
default:
return -1;
}
return -1;
}
struct metric_callback_data {
struct worker_task *task;
gchar *log_buf;
gint log_offset;
gint log_size;
gboolean alive;
};
static void
write_hashes_to_log (struct worker_task *task, gchar *logbuf, gint offset, gint size)
{
GList *cur;
struct mime_text_part *text_part;
cur = task->text_parts;
while (cur && offset < size) {
text_part = cur->data;
if (text_part->fuzzy) {
if (cur->next != NULL) {
offset += rspamd_snprintf (logbuf + offset, size - offset, " part: %Xd,", text_part->fuzzy->h);
}
else {
offset += rspamd_snprintf (logbuf + offset, size - offset, " part: %Xd", text_part->fuzzy->h);
}
}
cur = g_list_next (cur);
}
}
static gint
compare_url_func (gconstpointer a, gconstpointer b)
{
const struct uri *u1 = a, *u2 = b;
if (u1->hostlen != u2->hostlen) {
return u1->hostlen - u2->hostlen;
}
else {
return memcmp (u1->host, u2->host, u1->hostlen);
}
}
static gboolean
show_url_header (struct worker_task *task)
{
gint r = 0;
gchar outbuf[OUTBUFSIZ], c;
struct uri *url;
GList *cur;
f_str_t host;
GTree *url_tree;
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Urls: ");
url_tree = g_tree_new (compare_url_func);
cur = task->urls;
while (cur) {
url = cur->data;
if (task->cfg->log_urls) {
/* Write this url to log as well */
msg_info ("url found: <%s>, score: [%.2f / %.2f]", struri (url), default_score, default_required_score);
}
if (g_tree_lookup (url_tree, url) == NULL && url->hostlen > 0) {
g_tree_insert (url_tree, url, url);
host.begin = url->host;
host.len = url->hostlen;
/* Skip long hosts to avoid protocol coollisions */
if (host.len > OUTBUFSIZ) {
cur = g_list_next (cur);
continue;
}
/* Do header folding */
if (host.len + r >= OUTBUFSIZ - 3) {
outbuf[r++] = '\r';
outbuf[r++] = '\n';
outbuf[r] = ' ';
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, TRUE, FALSE)) {
return FALSE;
}
r = 0;
}
/* Write url host to buf */
if (g_list_next (cur) != NULL) {
c = *(host.begin + host.len);
*(host.begin + host.len) = '\0';
debug_task ("write url: %s", host.begin);
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "%s, ", host.begin);
*(host.begin + host.len) = c;
}
else {
c = *(host.begin + host.len);
*(host.begin + host.len) = '\0';
debug_task ("write url: %s", host.begin);
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "%s", host.begin);
*(host.begin + host.len) = c;
}
}
cur = g_list_next (cur);
}
if (r == 0) {
return TRUE;
}
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, CRLF);
return rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE);
}
static void
metric_symbols_callback (gpointer key, gpointer value, void *user_data)
{
struct metric_callback_data *cd = (struct metric_callback_data *)user_data;
struct worker_task *task = cd->task;
gint r = 0;
gchar outbuf[OUTBUFSIZ];
struct symbol *s = (struct symbol *)value;
GList *cur;
if (! cd->alive) {
return;
}
if (s->options) {
if (task->proto_ver >= 12) {
r = rspamd_snprintf (outbuf, OUTBUFSIZ, "Symbol: %s(%.2f); ", (gchar *)key, s->score);
}
else {
r = rspamd_snprintf (outbuf, OUTBUFSIZ, "Symbol: %s; ", (gchar *)key);
}
cur = s->options;
while (cur) {
if (g_list_next (cur)) {
r += rspamd_snprintf (outbuf + r, OUTBUFSIZ - r, "%s,", (gchar *)cur->data);
}
else {
r += rspamd_snprintf (outbuf + r, OUTBUFSIZ - r, "%s" CRLF, (gchar *)cur->data);
}
cur = g_list_next (cur);
}
/* End line with CRLF strictly */
if (r >= OUTBUFSIZ - 1) {
outbuf[OUTBUFSIZ - 2] = '\r';
outbuf[OUTBUFSIZ - 1] = '\n';
}
}
else {
if (task->proto_ver >= 12) {
r = rspamd_snprintf (outbuf, OUTBUFSIZ, "Symbol: %s(%.2f)" CRLF, (gchar *)key, s->score);
}
else {
r = rspamd_snprintf (outbuf, OUTBUFSIZ, "Symbol: %s" CRLF, (gchar *)key);
}
}
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "%s,", (gchar *)key);
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE)) {
cd->alive = FALSE;
}
}
static gboolean
show_metric_symbols (struct metric_result *metric_res, struct metric_callback_data *cd)
{
gint r = 0;
GList *symbols, *cur;
gchar outbuf[OUTBUFSIZ];
if (cd->task->proto == SPAMC_PROTO) {
symbols = g_hash_table_get_keys (metric_res->symbols);
cur = symbols;
while (cur) {
if (g_list_next (cur) != NULL) {
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "%s,", (gchar *)cur->data);
}
else {
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "%s" CRLF, (gchar *)cur->data);
}
cur = g_list_next (cur);
}
g_list_free (symbols);
if (! rspamd_dispatcher_write (cd->task->dispatcher, outbuf, r, FALSE, FALSE)) {
return FALSE;
}
}
else {
g_hash_table_foreach (metric_res->symbols, metric_symbols_callback, cd);
/* Remove last , from log buf */
if (cd->log_buf[cd->log_offset - 1] == ',') {
cd->log_buf[--cd->log_offset] = '\0';
}
}
return TRUE;
}
const gchar *
str_action_metric (enum rspamd_metric_action action)
{
switch (action) {
case METRIC_ACTION_REJECT:
return "reject";
case METRIC_ACTION_SOFT_REJECT:
return "soft reject";
case METRIC_ACTION_REWRITE_SUBJECT:
return "rewrite subject";
case METRIC_ACTION_ADD_HEADER:
return "add header";
case METRIC_ACTION_GREYLIST:
return "greylist";
case METRIC_ACTION_NOACTION:
return "no action";
}
return "unknown action";
}
gint
check_metric_action (double score, double required_score, struct metric *metric)
{
GList *cur;
struct metric_action *action, *selected_action = NULL;
if (score >= required_score) {
return metric->action;
}
else if (metric->actions == NULL) {
return METRIC_ACTION_NOACTION;
}
else {
cur = metric->actions;
while (cur) {
action = cur->data;
if (score >= action->score) {
selected_action = action;
}
cur = g_list_next (cur);
}
if (selected_action) {
return selected_action->action;
}
else {
return METRIC_ACTION_NOACTION;
}
}
}
static void
show_metric_result (gpointer metric_name, gpointer metric_value, void *user_data)
{
struct metric_callback_data *cd = (struct metric_callback_data *)user_data;
struct worker_task *task = cd->task;
gint r = 0;
gchar outbuf[OUTBUFSIZ];
struct metric_result *metric_res = (struct metric_result *)metric_value;
struct metric *m;
gint is_spam = 0;
double ms = 0, rs = 0;
enum rspamd_metric_action action;
if (! cd->alive) {
return;
}
if (metric_name == NULL || metric_value == NULL) {
m = g_hash_table_lookup (task->cfg->metrics, DEFAULT_METRIC);
default_required_score = m->required_score;
default_score = 0;
if (!check_metric_settings (task, m, &ms, &rs)) {
ms = m->required_score;
rs = m->reject_score;
}
if (task->proto == SPAMC_PROTO) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Spam: False ; 0 / %.2f" CRLF, ms);
}
else {
if (task->proto_ver >= 11) {
if (!task->is_skipped) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: default; False; 0 / %.2f / %.2f" CRLF, ms, rs);
}
else {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: default; Skip; 0 / %.2f / %.2f" CRLF, ms, rs);
}
}
else {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: default; False; 0 / %.2f" CRLF, ms);
}
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "Action: %s" CRLF, str_action_metric (METRIC_ACTION_NOACTION));
}
if (!task->is_skipped) {
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "(%s: F (no action): [0/%.2f/%.2f] [", "default", ms, rs);
}
else {
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "(%s: S: [0/%.2f/%.2f] [", "default", ms, rs);
}
}
else {
/* XXX: dirty hack */
if (strcmp (metric_res->metric->name, DEFAULT_METRIC) == 0) {
default_required_score = metric_res->metric->required_score;
default_score = metric_res->score;
}
if (!check_metric_settings (task, metric_res->metric, &ms, &rs)) {
ms = metric_res->metric->required_score;
rs = metric_res->metric->reject_score;
}
if (metric_res->score >= ms) {
is_spam = 1;
}
action = check_metric_action (metric_res->score, ms, metric_res->metric);
if (task->proto == SPAMC_PROTO) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Spam: %s ; %.2f / %.2f" CRLF, (is_spam) ? "True" : "False", metric_res->score, ms);
}
else {
if (task->proto_ver >= 11) {
if (!task->is_skipped) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: %s; %s; %.2f / %.2f / %.2f" CRLF,
(gchar *)metric_name, (is_spam) ? "True" : "False", metric_res->score, ms, rs);
}
else {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: %s; Skip; %.2f / %.2f / %.2f" CRLF,
(gchar *)metric_name, metric_res->score, ms, rs);
}
}
else {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Metric: %s; %s; %.2f / %.2f" CRLF,
(gchar *)metric_name, (is_spam) ? "True" : "False", metric_res->score, ms);
}
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "Action: %s" CRLF, str_action_metric(action));
}
if (!task->is_skipped) {
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "(%s: %c (%s): [%.2f/%.2f/%.2f] [",
(gchar *)metric_name, is_spam ? 'T' : 'F', str_action_metric (action), metric_res->score, ms, rs);
}
else {
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "(%s: %c (default): [%.2f/%.2f/%.2f] [",
(gchar *)metric_name, 'S', metric_res->score, ms, rs);
}
}
if (task->cmd == CMD_PROCESS) {
#ifndef GMIME24
g_mime_message_add_header (task->message, "X-Spam-Status", outbuf);
#else
g_mime_object_append_header (GMIME_OBJECT (task->message), "X-Spam-Status", outbuf);
#endif
}
else {
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE)) {
cd->alive = FALSE;
return;
}
if (task->cmd == CMD_SYMBOLS && metric_value != NULL) {
if (! show_metric_symbols (metric_res, cd)) {
cd->alive = FALSE;
return;
}
}
}
#ifdef HAVE_CLOCK_GETTIME
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "]), len: %z, time: %s,",
task->msg->len, calculate_check_time (&task->tv, &task->ts, task->cfg->clock_res));
#else
cd->log_offset += rspamd_snprintf (cd->log_buf + cd->log_offset, cd->log_size - cd->log_offset, "]), len: %z, time: %s,",
task->msg->len, calculate_check_time (&task->tv, task->cfg->clock_res));
#endif
}
static gboolean
show_messages (struct worker_task *task)
{
gint r = 0;
gchar outbuf[OUTBUFSIZ];
GList *cur;
cur = task->messages;
while (cur) {
r += rspamd_snprintf (outbuf + r, sizeof (outbuf) - r, "Message: %s" CRLF, (gchar *)cur->data);
cur = g_list_next (cur);
}
if (r == 0) {
return TRUE;
}
return rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE);
}
static gboolean
write_check_reply (struct worker_task *task)
{
gint r;
gchar outbuf[OUTBUFSIZ], logbuf[OUTBUFSIZ];
struct metric_result *metric_res;
struct metric_callback_data cd;
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s 0 %s" CRLF, (task->proto == SPAMC_PROTO) ? SPAMD_REPLY_BANNER : RSPAMD_REPLY_BANNER,
rspamc_proto_str (task->proto_ver), "OK");
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, TRUE, FALSE)) {
return FALSE;
}
cd.task = task;
cd.log_buf = logbuf;
cd.log_offset = rspamd_snprintf (logbuf, sizeof (logbuf), "id: <%s>, qid: <%s>, ", task->message_id, task->queue_id);
cd.log_size = sizeof (logbuf);
if (task->user) {
cd.log_offset += rspamd_snprintf (logbuf + cd.log_offset, sizeof (logbuf) - cd.log_offset,
"user: %s, ", task->user);
}
cd.alive = TRUE;
if (task->proto == SPAMC_PROTO) {
/* Ignore metrics, just write report for 'default' metric */
metric_res = g_hash_table_lookup (task->results, "default");
if (metric_res == NULL) {
/* Implicit metric result */
show_metric_result (NULL, NULL, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
else {
show_metric_result ((gpointer) "default", (gpointer) metric_res, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
}
else {
/* Show default metric first */
metric_res = g_hash_table_lookup (task->results, "default");
if (metric_res == NULL) {
/* Implicit metric result */
show_metric_result (NULL, NULL, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
else {
show_metric_result ((gpointer) "default", (gpointer) metric_res, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
g_hash_table_remove (task->results, "default");
/* Write result for each metric separately */
g_hash_table_foreach (task->results, show_metric_result, &cd);
if (!cd.alive) {
return FALSE;
}
/* Messages */
if (! show_messages (task)) {
return FALSE;
}
/* URL stat */
if (! show_url_header (task)) {
return FALSE;
}
}
write_hashes_to_log (task, logbuf, cd.log_offset, cd.log_size);
msg_info ("%s", logbuf);
if (task->proto_ver >= 12) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "Message-ID: %s" CRLF CRLF, task->message_id);
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE)) {
return FALSE;
}
}
task->worker->srv->stat->messages_scanned++;
if (default_score >= default_required_score) {
task->worker->srv->stat->messages_spam ++;
}
else {
task->worker->srv->stat->messages_ham ++;
}
return TRUE;
}
static gboolean
write_process_reply (struct worker_task *task)
{
gint r;
gchar *outmsg;
gchar outbuf[OUTBUFSIZ], logbuf[OUTBUFSIZ];
struct metric_result *metric_res;
struct metric_callback_data cd;
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s 0 %s" CRLF "Content-Length: %zd" CRLF CRLF,
(task->proto == SPAMC_PROTO) ? SPAMD_REPLY_BANNER : RSPAMD_REPLY_BANNER,
rspamc_proto_str (task->proto_ver), "OK", task->msg->len);
cd.task = task;
cd.log_buf = logbuf;
cd.log_offset = rspamd_snprintf (logbuf, sizeof (logbuf), "id: <%s>, qid: <%s>, ", task->message_id, task->queue_id);
if (task->user) {
cd.log_offset += rspamd_snprintf (logbuf + cd.log_offset, sizeof (logbuf) - cd.log_offset,
"user: %s, ", task->user);
}
cd.log_size = sizeof (logbuf);
cd.alive = TRUE;
if (task->proto == SPAMC_PROTO) {
/* Ignore metrics, just write report for 'default' metric */
metric_res = g_hash_table_lookup (task->results, "default");
if (metric_res == NULL) {
/* Implicit metric result */
show_metric_result (NULL, NULL, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
else {
show_metric_result ((gpointer) "default", (gpointer) metric_res, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
}
else {
/* Show default metric first */
metric_res = g_hash_table_lookup (task->results, "default");
if (metric_res == NULL) {
/* Implicit metric result */
show_metric_result (NULL, NULL, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
else {
show_metric_result ((gpointer) "default", (gpointer) metric_res, (void *)&cd);
if (! cd.alive) {
return FALSE;
}
}
g_hash_table_remove (task->results, "default");
/* Write result for each metric separately */
g_hash_table_foreach (task->results, show_metric_result, &cd);
if (! cd.alive) {
return FALSE;
}
/* Messages */
if (! show_messages (task)) {
return FALSE;
}
}
write_hashes_to_log (task, logbuf, cd.log_offset, cd.log_size);
msg_info ("%s", logbuf);
outmsg = g_mime_object_to_string (GMIME_OBJECT (task->message));
memory_pool_add_destructor (task->task_pool, (pool_destruct_func) g_free, outmsg);
if (! rspamd_dispatcher_write (task->dispatcher, outbuf, r, TRUE, FALSE)) {
return FALSE;
}
if (! rspamd_dispatcher_write (task->dispatcher, outmsg, strlen (outmsg), FALSE, TRUE)) {
return FALSE;
}
task->worker->srv->stat->messages_scanned++;
if (default_score >= default_required_score) {
task->worker->srv->stat->messages_spam ++;
}
else {
task->worker->srv->stat->messages_ham ++;
}
return TRUE;
}
gboolean
write_reply (struct worker_task *task)
{
gint r;
gchar outbuf[OUTBUFSIZ];
debug_task ("writing reply to client");
if (task->error_code != 0) {
/* Write error message and error code to reply */
if (task->proto == SPAMC_PROTO) {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s %d %s" CRLF CRLF,
SPAMD_REPLY_BANNER, rspamc_proto_str (task->proto_ver), task->error_code, SPAMD_ERROR);
debug_task ("writing error: %s", outbuf);
}
else {
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s %d %s" CRLF "%s: %s" CRLF CRLF,
RSPAMD_REPLY_BANNER, rspamc_proto_str (task->proto_ver), task->error_code, SPAMD_ERROR, ERROR_HEADER, task->last_error);
debug_task ("writing error: %s", outbuf);
}
/* Write to bufferevent error message */
return rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE);
}
else {
switch (task->cmd) {
case CMD_REPORT_IFSPAM:
case CMD_REPORT:
case CMD_CHECK:
case CMD_SYMBOLS:
return write_check_reply (task);
break;
case CMD_PROCESS:
return write_process_reply (task);
break;
case CMD_SKIP:
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s 0 %s" CRLF,
(task->proto == SPAMC_PROTO) ? SPAMD_REPLY_BANNER : RSPAMD_REPLY_BANNER, rspamc_proto_str (task->proto_ver), SPAMD_OK);
return rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE);
break;
case CMD_PING:
r = rspamd_snprintf (outbuf, sizeof (outbuf), "%s/%s 0 PONG" CRLF,
(task->proto == SPAMC_PROTO) ? SPAMD_REPLY_BANNER : RSPAMD_REPLY_BANNER, rspamc_proto_str (task->proto_ver));
return rspamd_dispatcher_write (task->dispatcher, outbuf, r, FALSE, FALSE);
break;
case CMD_OTHER:
return task->custom_cmd->func (task);
}
}
return FALSE;
}
void
register_protocol_command (const gchar *name, protocol_reply_func func)
{
struct custom_command *cmd;
cmd = g_malloc (sizeof (struct custom_command));
cmd->name = name;
cmd->func = func;
custom_commands = g_list_prepend (custom_commands, cmd);
}
|