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- --[[
- Copyright (c) 2019, Vsevolod Stakhov <vsevolod@highsecure.ru>
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ]]--
-
-
- local argparse = require "argparse"
- local rspamd_logger = require "rspamd_logger"
- local lua_util = require "lua_util"
- local ansicolors = require "ansicolors"
-
- local parser = argparse()
- :name "rspamadm dns_tool"
- :description "DNS tools provided by Rspamd"
- :help_description_margin(30)
- :command_target("command")
- :require_command(true)
-
- parser:option "-c --config"
- :description "Path to config file"
- :argname("<cfg>")
- :default(rspamd_paths["CONFDIR"] .. "/" .. "rspamd.conf")
-
- local spf = parser:command "spf"
- :description "Extracts spf records"
- parser:mutex(
- spf:option "-d --domain"
- :description "Domain to use"
- :argname("<domain>"),
- spf:option "-f --from"
- :description "SMTP from to use"
- :argname("<from>")
- )
-
- spf:option "-i --ip"
- :description "Source IP address to use"
- :argname("<ip>")
- spf:flag "-a --all"
- :description "Print all records"
-
- local function printf(fmt, ...)
- if fmt then
- io.write(string.format(fmt, ...))
- end
- io.write('\n')
- end
-
- local function highlight(str)
- return ansicolors.white .. str .. ansicolors.reset
- end
-
- local function green(str)
- return ansicolors.green .. str .. ansicolors.reset
- end
-
- local function red(str)
- return ansicolors.red .. str .. ansicolors.reset
- end
-
- local function load_config(opts)
- local _r,err = rspamd_config:load_ucl(opts['config'])
-
- if not _r then
- rspamd_logger.errx('cannot parse %s: %s', opts['config'], err)
- os.exit(1)
- end
-
- _r,err = rspamd_config:parse_rcl({'logging', 'worker'})
- if not _r then
- rspamd_logger.errx('cannot process %s: %s', opts['config'], err)
- os.exit(1)
- end
- end
-
- local function spf_handler(opts)
- local lua_spf = require("lua_ffi").spf
- local rspamd_task = require "rspamd_task"
-
- local task = rspamd_task:create(rspamd_config, rspamadm_ev_base)
- task:set_session(rspamadm_session)
- task:set_resolver(rspamadm_dns_resolver)
-
- if opts.ip then
- task:set_from_ip(opts.ip)
- end
-
- if opts.from then
- task:set_from('smtp', {addr = opts.from})
- elseif opts.domain then
- task:set_from('smtp', {user = 'user', domain = opts.domain})
- else
- io.stderr:write('Neither domain nor from specified\n')
- os.exit(1)
- end
-
- local function display_spf_results(elt, colored)
- local dec = function(e) return e end
-
- if colored then
- dec = function(e) return highlight(e) end
-
- if elt.res == 'pass' then
- dec = function(e) return green(e) end
- elseif elt.res == 'fail' then
- dec = function(e) return red(e) end
- end
-
- end
- printf('%s: %s', highlight('Result'), dec(elt.res))
- printf('%s: %s', highlight('Network'), dec(elt.ipnet))
-
- if elt.spf_str then
- printf('%s: %s', highlight('Original'), elt.spf_str)
- end
- end
-
- local function cb(success, res, matched)
- if success then
- if opts.ip and not opts.all then
- if matched then
- display_spf_results(matched, true)
- else
- printf('Not matched')
- end
-
- os.exit(0)
- end
-
- printf('SPF record for %s; digest: %s',
- highlight(opts.domain or opts.from), highlight(res.digest))
- for _,elt in ipairs(res.addrs) do
- if lua_util.table_cmp(elt, matched) then
- printf("%s", highlight('*** Matched ***'))
- display_spf_results(elt, true)
- printf('------')
- else
- display_spf_results(elt, false)
- printf('------')
- end
- end
- else
- printf('Cannot get SPF record: %s', res)
- end
- end
- lua_spf.spf_resolve(task, cb)
- end
-
- local function handler(args)
- local opts = parser:parse(args)
- load_config(opts)
-
- local command = opts.command
-
- if command == 'spf' then
- spf_handler(opts)
- else
- parser:error('command %s is not implemented', command)
- end
- end
-
- return {
- name = 'dnstool',
- aliases = {'dns', 'dns_tool'},
- handler = handler,
- description = parser._description
- }
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