Move misclenaous rules to a separate file.

1 files changed, 92 insertions, 0 deletions

diff --git a/rules/misc.lua b/rules/misc.lua
new file mode 100644
index 000000000..cbcdff0fc
--- /dev/null
+++ b/rules/misc.lua
@@ -0,0 +1,92 @@
+--[[
+Copyright (c) 2011-2015, Vsevolod Stakhov <vsevolod@highsecure.ru>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+]]--
+
+-- This is main lua config file for rspamd
+
+local util = require "rspamd_util"
+
+local reconf = config['regexp']
+
+
+-- Uncategorized rules
+
+-- Local rules
+local r_bgcolor = '/BGCOLOR=/iP'
+local r_font_color = '/font color=[\\"\']?\\#FFFFFF[\\"\']?/iP'
+reconf['R_WHITE_ON_WHITE'] = string.format('(!(%s) & (%s))', r_bgcolor, r_font_color)
+reconf['R_FLASH_REDIR_IMGSHACK'] = '/^(?:http:\\/\\/)?img\\d{1,5}\\.imageshack\\.us\\/\\S+\\.swf/U'
+
+-- Different text parts
+rspamd_config.R_PARTS_DIFFER = function(task)
+  local distance = task:get_mempool():get_variable('parts_distance', 'int')
+
+  if distance then
+    local nd = tonumber(distance)
+
+    if nd < 50 then
+      local score = 1 - util.tanh(nd / 100.0)
+
+      task:insert_result('R_PARTS_DIFFER', score, tostring(nd) .. '%')
+    end
+  end
+
+  return false
+end
+
+-- Date issues
+rspamd_config.MISSING_DATE = function(task)
+	if rspamd_config:get_api_version() >= 5 then
+		if not task:get_header_raw('Date') then
+			return true
+		end
+	end
+
+	return false
+end
+rspamd_config.DATE_IN_FUTURE = function(task)
+	if rspamd_config:get_api_version() >= 5 then
+		local dm = task:get_date{format = 'message'}
+		local dt = task:get_date{format = 'connect'}
+		-- An 2 hour
+		if dm > 0 and dm - dt > 7200 then
+			return true
+		end
+	end
+
+	return false
+end
+rspamd_config.DATE_IN_PAST = function(task)
+	if rspamd_config:get_api_version() >= 5 then
+    local dm = task:get_date{format = 'message', gmt = true}
+    local dt = task:get_date{format = 'connect', gmt = true}
+		-- A day
+		if dm > 0 and dt - dm > 86400 then
+			return true
+		end
+	end
+
+	return false
+end