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9.2 KiB

'use strict'
var format = require('quick-format-unescaped')
module.exports = pino
var _console = pfGlobalThisOrFallback().console || {}
var stdSerializers = {
mapHttpRequest: mock,
mapHttpResponse: mock,
wrapRequestSerializer: passthrough,
wrapResponseSerializer: passthrough,
wrapErrorSerializer: passthrough,
req: mock,
res: mock,
err: asErrValue
}
function pino (opts) {
opts = opts || {}
opts.browser = opts.browser || {}
var transmit = opts.browser.transmit
if (transmit && typeof transmit.send !== 'function') { throw Error('pino: transmit option must have a send function') }
var proto = opts.browser.write || _console
if (opts.browser.write) opts.browser.asObject = true
var serializers = opts.serializers || {}
var serialize = Array.isArray(opts.browser.serialize)
? opts.browser.serialize.filter(function (k) {
return k !== '!stdSerializers.err'
})
: opts.browser.serialize === true ? Object.keys(serializers) : false
var stdErrSerialize = opts.browser.serialize
if (
Array.isArray(opts.browser.serialize) &&
opts.browser.serialize.indexOf('!stdSerializers.err') > -1
) stdErrSerialize = false
var levels = ['error', 'fatal', 'warn', 'info', 'debug', 'trace']
if (typeof proto === 'function') {
proto.error = proto.fatal = proto.warn =
proto.info = proto.debug = proto.trace = proto
}
if (opts.enabled === false) opts.level = 'silent'
var level = opts.level || 'info'
var logger = Object.create(proto)
if (!logger.log) logger.log = noop
Object.defineProperty(logger, 'levelVal', {
get: getLevelVal
})
Object.defineProperty(logger, 'level', {
get: getLevel,
set: setLevel
})
var setOpts = {
transmit: transmit,
serialize: serialize,
asObject: opts.browser.asObject,
levels: levels
}
logger.levels = pino.levels
logger.level = level
logger.setMaxListeners = logger.getMaxListeners =
logger.emit = logger.addListener = logger.on =
logger.prependListener = logger.once =
logger.prependOnceListener = logger.removeListener =
logger.removeAllListeners = logger.listeners =
logger.listenerCount = logger.eventNames =
logger.write = logger.flush = noop
logger.serializers = serializers
logger._serialize = serialize
logger._stdErrSerialize = stdErrSerialize
logger.child = child
if (transmit) logger._logEvent = createLogEventShape()
function getLevelVal () {
return this.level === 'silent'
? Infinity
: this.levels.values[this.level]
}
function getLevel () {
return this._level
}
function setLevel (level) {
if (level !== 'silent' && !this.levels.values[level]) {
throw Error('unknown level ' + level)
}
this._level = level
set(setOpts, logger, 'error', 'log') // <-- must stay first
set(setOpts, logger, 'fatal', 'error')
set(setOpts, logger, 'warn', 'error')
set(setOpts, logger, 'info', 'log')
set(setOpts, logger, 'debug', 'log')
set(setOpts, logger, 'trace', 'log')
}
function child (bindings) {
if (!bindings) {
throw new Error('missing bindings for child Pino')
}
var bindingsSerializers = bindings.serializers
if (serialize && bindingsSerializers) {
var childSerializers = Object.assign({}, serializers, bindingsSerializers)
var childSerialize = opts.browser.serialize === true
? Object.keys(childSerializers)
: serialize
delete bindings.serializers
applySerializers([bindings], childSerialize, childSerializers, this._stdErrSerialize)
}
function Child (parent) {
this._childLevel = (parent._childLevel | 0) + 1
this.error = bind(parent, bindings, 'error')
this.fatal = bind(parent, bindings, 'fatal')
this.warn = bind(parent, bindings, 'warn')
this.info = bind(parent, bindings, 'info')
this.debug = bind(parent, bindings, 'debug')
this.trace = bind(parent, bindings, 'trace')
if (childSerializers) {
this.serializers = childSerializers
this._serialize = childSerialize
}
if (transmit) {
this._logEvent = createLogEventShape(
[].concat(parent._logEvent.bindings, bindings)
)
}
}
Child.prototype = this
return new Child(this)
}
return logger
}
pino.LOG_VERSION = 1
pino.levels = {
values: {
fatal: 60,
error: 50,
warn: 40,
info: 30,
debug: 20,
trace: 10
},
labels: {
10: 'trace',
20: 'debug',
30: 'info',
40: 'warn',
50: 'error',
60: 'fatal'
}
}
pino.stdSerializers = stdSerializers
function set (opts, logger, level, fallback) {
var proto = Object.getPrototypeOf(logger)
logger[level] = logger.levelVal > logger.levels.values[level] ? noop
: (proto[level] ? proto[level] : (_console[level] || _console[fallback] || noop))
wrap(opts, logger, level)
}
function wrap (opts, logger, level) {
if (!opts.transmit && logger[level] === noop) return
logger[level] = (function (write) {
return function LOG () {
var ts = Date.now()
var args = new Array(arguments.length)
var proto = (Object.getPrototypeOf && Object.getPrototypeOf(this) === _console) ? _console : this
for (var i = 0; i < args.length; i++) args[i] = arguments[i]
if (opts.serialize && !opts.asObject) {
applySerializers(args, this._serialize, this.serializers, this._stdErrSerialize)
}
if (opts.asObject) write.call(proto, asObject(this, level, args, ts))
else write.apply(proto, args)
if (opts.transmit) {
var transmitLevel = opts.transmit.level || logger.level
var transmitValue = pino.levels.values[transmitLevel]
var methodValue = pino.levels.values[level]
if (methodValue < transmitValue) return
transmit(this, {
ts: ts,
methodLevel: level,
methodValue: methodValue,
transmitLevel: transmitLevel,
transmitValue: pino.levels.values[opts.transmit.level || logger.level],
send: opts.transmit.send,
val: logger.levelVal
}, args)
}
}
})(logger[level])
}
function asObject (logger, level, args, ts) {
if (logger._serialize) applySerializers(args, logger._serialize, logger.serializers, logger._stdErrSerialize)
var argsCloned = args.slice()
var msg = argsCloned[0]
var o = { time: ts, level: pino.levels.values[level] }
var lvl = (logger._childLevel | 0) + 1
if (lvl < 1) lvl = 1
// deliberate, catching objects, arrays
if (msg !== null && typeof msg === 'object') {
while (lvl-- && typeof argsCloned[0] === 'object') {
Object.assign(o, argsCloned.shift())
}
msg = argsCloned.length ? format(argsCloned.shift(), argsCloned) : undefined
} else if (typeof msg === 'string') msg = format(argsCloned.shift(), argsCloned)
if (msg !== undefined) o.msg = msg
return o
}
function applySerializers (args, serialize, serializers, stdErrSerialize) {
for (var i in args) {
if (stdErrSerialize && args[i] instanceof Error) {
args[i] = pino.stdSerializers.err(args[i])
} else if (typeof args[i] === 'object' && !Array.isArray(args[i])) {
for (var k in args[i]) {
if (serialize && serialize.indexOf(k) > -1 && k in serializers) {
args[i][k] = serializers[k](args[i][k])
}
}
}
}
}
function bind (parent, bindings, level) {
return function () {
var args = new Array(1 + arguments.length)
args[0] = bindings
for (var i = 1; i < args.length; i++) {
args[i] = arguments[i - 1]
}
return parent[level].apply(this, args)
}
}
function transmit (logger, opts, args) {
var send = opts.send
var ts = opts.ts
var methodLevel = opts.methodLevel
var methodValue = opts.methodValue
var val = opts.val
var bindings = logger._logEvent.bindings
applySerializers(
args,
logger._serialize || Object.keys(logger.serializers),
logger.serializers,
logger._stdErrSerialize === undefined ? true : logger._stdErrSerialize
)
logger._logEvent.ts = ts
logger._logEvent.messages = args.filter(function (arg) {
// bindings can only be objects, so reference equality check via indexOf is fine
return bindings.indexOf(arg) === -1
})
logger._logEvent.level.label = methodLevel
logger._logEvent.level.value = methodValue
send(methodLevel, logger._logEvent, val)
logger._logEvent = createLogEventShape(bindings)
}
function createLogEventShape (bindings) {
return {
ts: 0,
messages: [],
bindings: bindings || [],
level: { label: '', value: 0 }
}
}
function asErrValue (err) {
var obj = {
type: err.constructor.name,
msg: err.message,
stack: err.stack
}
for (var key in err) {
if (obj[key] === undefined) {
obj[key] = err[key]
}
}
return obj
}
function mock () { return {} }
function passthrough (a) { return a }
function noop () {}
/* eslint-disable */
/* istanbul ignore next */
function pfGlobalThisOrFallback () {
function defd (o) { return typeof o !== 'undefined' && o }
try {
if (typeof globalThis !== 'undefined') return globalThis
Object.defineProperty(Object.prototype, 'globalThis', {
get: function () {
delete Object.prototype.globalThis
return (this.globalThis = this)
},
configurable: true
})
return globalThis
} catch (e) {
return defd(self) || defd(window) || defd(this) || {}
}
}
/* eslint-enable */