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index.js
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index.js
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const logger = require('./lib/logger')
const envEmailAddr = '<?([^>,]*)>?'
const postfixQid = '[0-9A-F]{10,11}' // default queue ids
const postfixQidLong = '[0-9A-Za-z]{14,16}' // optional 'long' ids
const postfixQidAny = postfixQidLong + '|' + postfixQid
const regex = {
syslog : /^([A-Za-z]{3} [0-9 ]{1,2} [\d:]{8}) ([^\s]+) ([^[]+)\[([\d]+)\]: (.*)$/,
'submission/smtpd': new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(client)=([^,]+), ' +
'(sasl_method)=([^,]+), ' +
'(sasl_username)=(.*)$'
),
smtp: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(to)=' + envEmailAddr + ', ' +
'(?:(orig_to)=' + envEmailAddr + ', )?' +
'(relay)=([^,]+), ' +
'(?:(conn_use)=([0-9]+), )?' +
'(delay)=([^,]+), ' +
'(delays)=([^,]+), ' +
'(dsn)=([^,]+), ' +
'(status)=(.*)$'
),
'smtp-defer': new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(?:host) ([^ ]+) ' +
'(?:said|refused to talk to me): ' +
'(4[0-9]{2} .*)$'
// '(?: \\(in reply to (?:end of )?([A-Z ]+) command\\))*'
),
'smtp-timeout': new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'conversation with ([^ ]+) ' +
'timed out ' + '(.*)$'
),
'smtp-reject': new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'host ([^ ]+) ' +
'(?:said|refused to talk to me): (5[0-9]{2}.*)$'
),
'smtp-conn-err': /^connect to ([^ ]+): (.*)$/,
'smtp-debug' : new RegExp(
'(?:(' + postfixQidAny + '): )?' +
'(enabling PIX workarounds|' +
'setting up TLS|' +
'Cannot start TLS: handshake failure|' +
'lost connection .*|' +
'^connect from .*|' +
'^disconnect from .*|' +
'^SSL_accept|' +
'^SSL_connect error to .*|' +
'^warning: .*|' +
'conversation with |' +
'host )'
),
qmgr: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(from)=' + envEmailAddr + ', ' +
'(?:' +
'(size)=([0-9]+), ' +
'(nrcpt)=([0-9]+) ' +
'|' +
'(status)=(.*)$' +
')'
),
'qmgr-retry': new RegExp('^(' + postfixQidAny + '): (removed)'),
// postfix sometimes truncates the message-id, so don't require ending >
cleanup : new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'((?:resent-)?message-id)=<(.*?)>?$'
),
pickup: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(uid)=([0-9]+) ' +
'(from)=' + envEmailAddr
),
'pickup-retry': new RegExp(
'^warning: ' +
'(' + postfixQidAny + '): ' +
'(.*)$'
),
error: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(to)=' + envEmailAddr + ', ' +
'(?:(orig_to)=' + envEmailAddr + ', )?' +
'(relay)=([^,]+), ' +
'(delay)=([^,]+), ' +
'(delays)=([^,]+), ' +
'(dsn)=([^,]+), ' +
'(status)=(.*)$'
),
'error-retry': new RegExp(
'^warning: ' +
'(' + postfixQidAny + '): ' +
'(.*)$'
),
bounce: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'sender non-delivery notification: ' +
'(' + postfixQidAny + '$)'
),
'bounce-fatal': new RegExp(
'^fatal: ' +
'(.*?) ' +
'(' + postfixQidAny + '): ' +
'(.*)$'
),
local: new RegExp(
'^(?:(' + postfixQidAny + '): )?' +
'(to)=' + envEmailAddr + ', ' +
'(?:(orig_to)=' + envEmailAddr + ', )?' +
'(relay)=([^,]+), ' +
'(delay)=([^,]+), ' +
'(delays)=([^,]+), ' +
'(dsn)=([^,]+), ' +
'(status)=(sent .*)$'
),
forwardedAs: new RegExp('forwarded as (' + postfixQidAny + ')\\)'),
scache : new RegExp('^statistics: (.*)'),
postscreen : new RegExp('^(.*)'),
postsuper : new RegExp('^(' + postfixQidAny + '): (.*)$'),
}
exports.asObject = function (line) {
const match = line.match(regex.syslog)
if (!match) {
logger.error('unparsable syslog: ' + line)
return
}
const syslog = syslogAsObject(match)
if (!/^postfix/.test(syslog.prog)) return // not postfix, ignore
const parsed = exports.asObjectType(syslog.prog, syslog.msg)
if (!parsed) {
logger.error('unparsable ' + syslog.prog + ': ' + syslog.msg)
return
}
[ 'date','host','prog','pid' ].forEach(function (f) {
if (!syslog[f]) return
parsed[f] = syslog[f]
})
return parsed
}
exports.asObjectType = function (type, line) {
if (!type || !line) {
logger.error('missing required arg')
return
}
if ('postfix/' === type.substr(0,8)) type = type.substr(8)
switch (type) {
case 'qmgr':
case 'pickup':
case 'error':
case 'submission/smtpd':
return argAsObject(type, line)
case 'smtp':
return smtpAsObject(line)
case 'bounce':
return bounceAsObject(line)
}
const match = line.match(regex[type])
if (!match) return
switch (type) {
case 'syslog':
return syslogAsObject(match)
case 'scache':
return { statistics: match[1] }
case 'postscreen':
return { postscreen: match[1] }
case 'local':
return localAsObject(match)
case 'postsuper':
return { qid: match[1], msg: match[2] }
}
return matchAsObject(match)
}
function syslogAsObject (match) {
return {
date: match[1],
host: match[2],
prog: match[3],
pid : match[4],
msg : match[5],
}
}
function matchAsObject (match) {
match.shift()
const obj = {}
const qid = match.shift()
if (qid) obj.qid = qid
while (match.length) {
const key = match.shift()
const val = match.shift()
if (key === undefined) continue
if (val === undefined) continue
obj[key] = val
}
return obj
}
function argAsObject (thing, line) {
let match = line.match(regex[thing])
if (match) return matchAsObject(match)
match = line.match(regex[thing + '-retry'])
if (match) return { qid: match[1], msg: match[2] }
}
function smtpAsObject (line) {
let match = line.match(regex.smtp)
if (match) return matchAsObject(match)
match = line.match(regex['smtp-conn-err'])
if (match) {
return {
action: 'delivery',
mx : match[1],
err : match[2],
}
}
match = line.match(regex['smtp-defer'])
if (match) {
return {
action: 'defer',
qid : match[1],
host : match[2],
msg : match[3],
}
}
match = line.match(regex['smtp-reject'])
if (match) {
return {
action: 'reject',
qid : match[1],
host : match[2],
msg : match[3],
}
}
match = line.match(regex['smtp-timeout'])
if (match) {
return {
action: 'defer',
qid : match[1],
host : match[2],
msg : match[3],
}
}
match = line.match(regex['smtp-debug'])
if (!match) return
if (match[1] && match[2]) {
return {
qid: match[1],
msg: match[2],
}
}
return { msg: match[0] }
}
function bounceAsObject (line) {
let match = line.match(regex.bounce)
if (match) {
match.shift()
const obj = {}
const qid = match.shift()
if (qid) obj.qid = qid
obj.dsnQid = match.shift()
return obj
}
match = line.match(regex['bounce-fatal'])
if (match) {
return {
qid: match[2],
msg: 'fatal: ' + match[1] + ': ' + match[3],
}
}
}
function localAsObject (match) {
const obj = matchAsObject(match)
const m = obj.status.match(regex.forwardedAs)
if (m) {
obj.status = 'forwarded'
obj.forwardedAs = m[1]
}
return obj
}