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authorVsevolod Stakhov <vsevolod@highsecure.ru>2018-03-05 16:41:47 +0000
committerGitHub <noreply@github.com>2018-03-05 16:41:47 +0000
commit2000e327bbb11abb2d0c219105690adcd4470bc9 (patch)
tree4c9a115c199742d4c40f37916285c422b38eb1da
parenta659d1a9f04da051a45eb55e242bcec5491dca4e (diff)
parent406bad22196d736b3897673d05c6dc3db68f1fb7 (diff)
downloadrspamd-2000e327bbb11abb2d0c219105690adcd4470bc9.tar.gz
rspamd-2000e327bbb11abb2d0c219105690adcd4470bc9.zip
Merge pull request #2062 from moisseev/headers
[Fix] Fix *_EXCESS_BASE64 rules
-rw-r--r--rules/regexp/headers.lua18
1 files changed, 9 insertions, 9 deletions
diff --git a/rules/regexp/headers.lua b/rules/regexp/headers.lua
index 0d1755741..39ae3c8cb 100644
--- a/rules/regexp/headers.lua
+++ b/rules/regexp/headers.lua
@@ -36,9 +36,9 @@ reconf['SUBJECT_NEEDS_ENCODING'] = {
local from_encoded_b64 = 'From=/=\\?\\S+\\?B\\?/iX'
local from_encoded_qp = 'From=/=\\?\\S+\\?Q\\?/iX'
-local from_needs_mime = 'From=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/X'
+local raw_from_needs_mime = 'From=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/X'
reconf['FROM_NEEDS_ENCODING'] = {
- re = string.format('!(%s) & !(%s) & (%s)', from_encoded_b64, from_encoded_qp, from_needs_mime),
+ re = string.format('!(%s) & !(%s) & (%s)', from_encoded_b64, from_encoded_qp, raw_from_needs_mime),
score = 1.0,
description = 'From header needs encoding',
group = 'header'
@@ -46,9 +46,9 @@ reconf['FROM_NEEDS_ENCODING'] = {
local to_encoded_b64 = 'To=/=\\?\\S+\\?B\\?/iX'
local to_encoded_qp = 'To=/=\\?\\S+\\?Q\\?/iX'
-local to_needs_mime = 'To=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/X'
+local raw_to_needs_mime = 'To=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/X'
reconf['TO_NEEDS_ENCODING'] = {
- re = string.format('!(%s) & !(%s) & (%s)', to_encoded_b64, to_encoded_qp, to_needs_mime),
+ re = string.format('!(%s) & !(%s) & (%s)', to_encoded_b64, to_encoded_qp, raw_to_needs_mime),
score = 1.0,
description = 'To header needs encoding',
group = 'header'
@@ -165,8 +165,9 @@ reconf['TRACKER_ID'] = {
group = 'header'
}
-
--- Final rule
+-- From contains only 7bit characters (parsed headers are used)
+local from_needs_mime = 'From=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr'
+-- From that contains encoded characters while base 64 is not needed as all symbols are 7bit
reconf['FROM_EXCESS_BASE64'] = {
re = string.format('%s & !%s', from_encoded_b64, from_needs_mime),
score = 1.5,
@@ -175,7 +176,6 @@ reconf['FROM_EXCESS_BASE64'] = {
}
-- From that contains encoded characters while quoted-printable is not needed as all symbols are 7bit
--- Final rule
reconf['FROM_EXCESS_QP'] = {
re = string.format('%s & !%s', from_encoded_qp, from_needs_mime),
score = 1.2,
@@ -183,9 +183,9 @@ reconf['FROM_EXCESS_QP'] = {
group = 'excessqp'
}
+-- To contains only 7bit characters (parsed headers are used)
+local to_needs_mime = 'To=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr'
-- To that contains encoded characters while base 64 is not needed as all symbols are 7bit
--- Regexp that checks that To header is encoded with base64 (search in raw headers)
--- Final rule
reconf['TO_EXCESS_BASE64'] = {
re = string.format('%s & !%s', to_encoded_b64, to_needs_mime),
score = 1.5,