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Add new exporter to push JSON to a raw TCP socket #4572

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merged 2 commits into from Aug 15, 2023
Merged

Add new exporter to push JSON to a raw TCP socket #4572

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2e6a452
Add new exporter to push JSON to a raw TCP socket; for example to Gra…
lingfish Aug 14, 2023
29031d7
Rename exported to be more explicit
lingfish Aug 15, 2023
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37 changes: 37 additions & 0 deletions src/plugins/lua/metadata_exporter.lua
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Expand Up @@ -26,6 +26,7 @@ local lua_util = require "lua_util"
local rspamd_http = require "rspamd_http"
local rspamd_util = require "rspamd_util"
local rspamd_logger = require "rspamd_logger"
local rspamd_tcp = require "rspamd_tcp"
local ucl = require "ucl"
local E = {}
local N = 'metadata_exporter'
Expand Down Expand Up @@ -356,6 +357,23 @@ local pushers = {
timeout = rule.timeout or settings.timeout,
}, formatted, sendmail_cb)
end,
json_raw_tcp = function(task, formatted, rule)
local function json_raw_tcp_callback(err, code)
if err then
rspamd_logger.errx(task, 'got error %s in json_raw_tcp callback', err)
return maybe_defer(task, rule)
end
return true
end
rspamd_tcp.request({
task=task,
host=rule.host,
port=rule.port,
data=formatted,
callback=json_raw_tcp_callback,
read=false,
})
end,
}

local opts = rspamd_config:get_all_opt(N)
Expand Down Expand Up @@ -534,6 +552,21 @@ if type(settings.rules) ~= 'table' then
settings.rules[r.backend:upper()] = r
end
end
if settings.pusher_enabled.json_raw_tcp then
if not (settings.host and settings.port) then
rspamd_logger.errx(rspamd_config, 'No host and/or port is specified')
settings.pusher_enabled.json_raw_tcp = nil
else
local r = {}
r.backend = 'json_raw_tcp'
r.host = settings.host
r.port = settings.port
r.defer = settings.defer
r.selector = settings.pusher_select.json_raw_tcp
r.formatter = settings.pusher_format.json_raw_tcp
settings.rules[r.backend:upper()] = r
end
end
if not next(settings.pusher_enabled) then
rspamd_logger.errx(rspamd_config, 'No push backend enabled')
return
Expand All @@ -557,6 +590,10 @@ local backend_required_elements = {
redis_pubsub = {
'channel',
},
json_raw_tcp = {
'host',
'port',
},
}
local check_element = {
selector = function(k, v)
Expand Down