153 lines
4.2 KiB
JavaScript
153 lines
4.2 KiB
JavaScript
"use strict";
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var layouts = require("../layouts");
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var mailer = require("nodemailer");
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var os = require('os');
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var logEventBuffer = [];
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var subjectLayout;
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var layout;
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var unsentCount = 0;
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var shutdownTimeout;
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var sendInterval;
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var sendTimer;
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var config;
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function sendBuffer() {
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if (logEventBuffer.length > 0) {
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var transportOpts = getTransportOptions(config);
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var transport = mailer.createTransport(transportOpts);
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var firstEvent = logEventBuffer[0];
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var body = "";
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var count = logEventBuffer.length;
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while (logEventBuffer.length > 0) {
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body += layout(logEventBuffer.shift(), config.timezoneOffset) + "\n";
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}
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var msg = {
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to: config.recipients,
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subject: config.subject || subjectLayout(firstEvent),
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headers: {"Hostname": os.hostname()}
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};
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if (true === config.attachment.enable) {
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msg[config.html ? "html" : "text"] = config.attachment.message;
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msg.attachments = [
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{
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filename: config.attachment.filename,
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contentType: 'text/x-log',
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content: body
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}
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];
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} else {
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msg[config.html ? "html" : "text"] = body;
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}
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if (config.sender) {
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msg.from = config.sender;
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}
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transport.sendMail(msg, function (error) {
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if (error) {
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console.error("log4js.smtpAppender - Error happened", error);
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}
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transport.close();
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unsentCount -= count;
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});
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}
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}
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function getTransportOptions() {
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var transportOpts = null;
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if (config.SMTP) {
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transportOpts = config.SMTP;
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} else if (config.transport) {
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var plugin = config.transport.plugin || 'smtp';
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var transportModule = 'nodemailer-' + plugin + '-transport';
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var transporter = require(transportModule);
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transportOpts = transporter(config.transport.options);
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}
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return transportOpts;
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}
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function scheduleSend() {
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if (!sendTimer) {
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sendTimer = setTimeout(function () {
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sendTimer = null;
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sendBuffer();
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}, sendInterval);
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}
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}
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/**
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* SMTP Appender. Sends logging events using SMTP protocol.
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* It can either send an email on each event or group several
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* logging events gathered during specified interval.
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*
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* @param _config appender configuration data
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* config.sendInterval time between log emails (in seconds), if 0
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* then every event sends an email
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* config.shutdownTimeout time to give up remaining emails (in seconds; defaults to 5).
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* @param _layout a function that takes a logevent and returns a string (defaults to basicLayout).
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*/
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function smtpAppender(_config, _layout) {
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config = _config;
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if (!config.attachment) {
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config.attachment = {};
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}
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config.attachment.enable = !!config.attachment.enable;
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config.attachment.message = config.attachment.message || "See logs as attachment";
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config.attachment.filename = config.attachment.filename || "default.log";
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layout = _layout || layouts.basicLayout;
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subjectLayout = layouts.messagePassThroughLayout;
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sendInterval = config.sendInterval * 1000 || 0;
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shutdownTimeout = ('shutdownTimeout' in config ? config.shutdownTimeout : 5) * 1000;
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return function (loggingEvent) {
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unsentCount++;
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logEventBuffer.push(loggingEvent);
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if (sendInterval > 0) {
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scheduleSend();
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} else {
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sendBuffer();
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}
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};
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}
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function configure(_config) {
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config = _config;
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if (_config.layout) {
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layout = layouts.layout(_config.layout.type, _config.layout);
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}
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return smtpAppender(_config, layout);
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}
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function shutdown(cb) {
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if (shutdownTimeout > 0) {
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setTimeout(function () {
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if (sendTimer)
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clearTimeout(sendTimer);
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sendBuffer();
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}, shutdownTimeout);
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}
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(function checkDone() {
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if (unsentCount > 0) {
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setTimeout(checkDone, 100);
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} else {
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cb();
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}
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})();
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}
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exports.name = "smtp";
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exports.appender = smtpAppender;
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exports.configure = configure;
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exports.shutdown = shutdown;
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