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@@ -6,33 +6,34 @@ local symbol_strict = nil |
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local bad_hosts = {} |
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local good_hosts = {} |
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function recv_dns_cb(task, to_resolve, results, err) |
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if not results then |
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task:insert_result(symbol_strict, 1) |
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else |
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rspamd_logger.info(string.format('SMTP resolver failed to resolve: %s is %s', to_resolve, results[1])) |
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local i = true |
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for _,h in ipairs(bad_hosts) do |
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if string.find(results[1], h) then |
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-- Check for good hostname |
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if good_hosts then |
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for _,gh in ipairs(good_hosts) do |
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if string.find(results[1], gh) then |
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i = false |
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break |
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local function check_quantity_received (task) |
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local function recv_dns_cb(resolver, to_resolve, results, err) |
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task:inc_dns_req() |
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if not results then |
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task:insert_result(symbol_strict, 1) |
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else |
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rspamd_logger.info(string.format('SMTP resolver failed to resolve: %s is %s', to_resolve, results[1])) |
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local i = true |
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for _,h in ipairs(bad_hosts) do |
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if string.find(results[1], h) then |
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-- Check for good hostname |
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if good_hosts then |
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for _,gh in ipairs(good_hosts) do |
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if string.find(results[1], gh) then |
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i = false |
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break |
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end |
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end |
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end |
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end |
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if i then |
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task:insert_result(symbol_strict, 1, h) |
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return |
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if i then |
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task:insert_result(symbol_strict, 1, h) |
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return |
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end |
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end |
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end |
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end |
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end |
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end |
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function check_quantity_received (task) |
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local recvh = task:get_received_headers() |
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if table.maxn(recvh) <= 1 then |
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task:insert_result(symbol, 1) |
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@@ -43,10 +44,13 @@ function check_quantity_received (task) |
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return |
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end |
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-- Unresolved host |
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if not r['real_hostname'] or string.lower(r['real_hostname']) == 'unknown' or string.match(r['real_hostname'], '^%d+%.%d+%.%d+%.%d+$') then |
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if not r['real_hostname'] or string.lower(r['real_hostname']) == 'unknown' or |
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string.match(r['real_hostname'], '^%d+%.%d+%.%d+%.%d+$') then |
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if r['real_ip'] then |
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-- Try to resolve it again |
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task:resolve_dns_ptr(r['real_ip'], 'recv_dns_cb') |
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task:get_resolver():resolve_ptr(task:get_session(), task:get_mempool(), |
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tostring(r['real_ip']), recv_dns_cb) |
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else |
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task:insert_result(symbol_strict, 1) |
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end |
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@@ -91,7 +95,7 @@ end |
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local opts = rspamd_config:get_all_opt('once_received') |
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if opts then |
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if opts['symbol'] then |
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symbol = opts['symbol'] |
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local symbol = opts['symbol'] |
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for n,v in pairs(opts) do |
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if n == 'symbol_strict' then |
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@@ -115,6 +119,6 @@ if opts then |
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end |
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-- Register symbol's callback |
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rspamd_config:register_symbol(symbol, 1.0, 'check_quantity_received') |
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rspamd_config:register_symbol(symbol, 1.0, check_quantity_received) |
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end |
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end |