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@ -8,10 +8,11 @@ var fs = require('fs');
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var path = require('path');
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var winston = require('winston');
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var util = require('util');
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var morgan = require('morgan');
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var file = require('./file');
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var meta = require('./meta');
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var morgan = require('morgan');
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var opts = {
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/*
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@ -27,195 +28,193 @@ var opts = {
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},
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};
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/* -- Logger -- */
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var Logger = module.exports;
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(function (Logger) {
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Logger.init = function (app) {
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opts.express.app = app;
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/* Open log file stream & initialize express logging if meta.config.logger* variables are set */
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Logger.setup();
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};
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Logger.setup = function () {
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Logger.setup_one('loggerPath', meta.config.loggerPath);
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};
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Logger.setup_one = function (key, value) {
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/*
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* 1. Open the logger stream: stdout or file
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* 2. Re-initialize the express logger hijack
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*/
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if (key === 'loggerPath') {
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Logger.setup_one_log(value);
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Logger.express_open();
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}
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};
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Logger.setup_one_log = function (value) {
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/*
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* If logging is currently enabled, create a stream.
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* Otherwise, close the current stream
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*/
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if (meta.config.loggerStatus > 0 || meta.config.loggerIOStatus) {
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var stream = Logger.open(value);
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if (stream) {
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opts.streams.log.f = stream;
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} else {
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opts.streams.log.f = process.stdout;
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}
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Logger.init = function (app) {
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opts.express.app = app;
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/* Open log file stream & initialize express logging if meta.config.logger* variables are set */
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Logger.setup();
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};
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Logger.setup = function () {
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Logger.setup_one('loggerPath', meta.config.loggerPath);
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};
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Logger.setup_one = function (key, value) {
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/*
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* 1. Open the logger stream: stdout or file
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* 2. Re-initialize the express logger hijack
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*/
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if (key === 'loggerPath') {
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Logger.setup_one_log(value);
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Logger.express_open();
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}
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};
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Logger.setup_one_log = function (value) {
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/*
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* If logging is currently enabled, create a stream.
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* Otherwise, close the current stream
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*/
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if (meta.config.loggerStatus > 0 || meta.config.loggerIOStatus) {
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var stream = Logger.open(value);
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if (stream) {
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opts.streams.log.f = stream;
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} else {
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Logger.close(opts.streams.log);
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opts.streams.log.f = process.stdout;
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}
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};
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Logger.open = function (value) {
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/* Open the streams to log to: either a path or stdout */
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var stream;
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if (value) {
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if (file.existsSync(value)) {
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var stats = fs.statSync(value);
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if (stats) {
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if (stats.isDirectory()) {
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stream = fs.createWriteStream(path.join(value, 'nodebb.log'), { flags: 'a' });
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} else {
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stream = fs.createWriteStream(value, { flags: 'a' });
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}
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}
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} else {
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stream = fs.createWriteStream(value, { flags: 'a' });
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}
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} else {
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Logger.close(opts.streams.log);
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}
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};
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if (stream) {
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stream.on('error', function (err) {
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winston.error(err.message);
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});
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Logger.open = function (value) {
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/* Open the streams to log to: either a path or stdout */
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var stream;
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if (value) {
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if (file.existsSync(value)) {
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var stats = fs.statSync(value);
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if (stats) {
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if (stats.isDirectory()) {
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stream = fs.createWriteStream(path.join(value, 'nodebb.log'), { flags: 'a' });
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} else {
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stream = fs.createWriteStream(value, { flags: 'a' });
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}
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}
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} else {
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stream = process.stdout;
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stream = fs.createWriteStream(value, { flags: 'a' });
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}
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return stream;
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};
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Logger.close = function (stream) {
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if (stream.f !== process.stdout && stream.f) {
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stream.end();
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}
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stream.f = null;
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};
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Logger.monitorConfig = function (socket, data) {
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/*
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* This monitor's when a user clicks "save" in the Logger section of the admin panel
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*/
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Logger.setup_one(data.key, data.value);
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Logger.io_close(socket);
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Logger.io(socket);
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};
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Logger.express_open = function () {
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if (opts.express.set !== 1) {
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opts.express.set = 1;
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opts.express.app.use(Logger.expressLogger);
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}
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/*
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* Always initialize "ofn" (original function) with the original logger function
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*/
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opts.express.ofn = morgan('combined', { stream: opts.streams.log.f });
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};
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Logger.expressLogger = function (req, res, next) {
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/*
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* The new express.logger
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*
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* This hijack allows us to turn logger on/off dynamically within express
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*/
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if (meta.config.loggerStatus > 0) {
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return opts.express.ofn(req, res, next);
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}
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return next();
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};
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Logger.prepare_io_string = function (_type, _uid, _args) {
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/*
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* This prepares the output string for intercepted socket.io events
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*
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* The format is: io: <uid> <event> <args>
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*/
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try {
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return 'io: ' + _uid + ' ' + _type + ' ' + util.inspect(Array.prototype.slice.call(_args)) + '\n';
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} catch (err) {
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winston.info('Logger.prepare_io_string: Failed', err);
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return 'error';
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}
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};
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Logger.io_close = function (socket) {
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/*
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* Restore all hijacked sockets to their original emit/on functions
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*/
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if (!socket || !socket.io || !socket.io.sockets || !socket.io.sockets.sockets) {
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return;
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if (stream) {
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stream.on('error', function (err) {
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winston.error(err.message);
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});
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}
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var clients = socket.io.sockets.sockets;
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for (var sid in clients) {
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if (clients.hasOwnProperty(sid)) {
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var client = clients[sid];
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if (client.oEmit && client.oEmit !== client.emit) {
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client.emit = client.oEmit;
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}
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} else {
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stream = process.stdout;
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}
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return stream;
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};
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if (client.$oEmit && client.$oEmit !== client.$emit) {
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client.$emit = client.$oEmit;
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}
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}
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}
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};
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Logger.close = function (stream) {
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if (stream.f !== process.stdout && stream.f) {
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stream.end();
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}
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stream.f = null;
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};
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Logger.io = function (socket) {
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/*
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* Go through all of the currently established sockets & hook their .emit/.on
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*/
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Logger.monitorConfig = function (socket, data) {
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/*
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* This monitor's when a user clicks "save" in the Logger section of the admin panel
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*/
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Logger.setup_one(data.key, data.value);
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Logger.io_close(socket);
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Logger.io(socket);
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};
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if (!socket || !socket.io || !socket.io.sockets || !socket.io.sockets.sockets) {
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return;
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}
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Logger.express_open = function () {
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if (opts.express.set !== 1) {
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opts.express.set = 1;
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opts.express.app.use(Logger.expressLogger);
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}
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/*
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* Always initialize "ofn" (original function) with the original logger function
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*/
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opts.express.ofn = morgan('combined', { stream: opts.streams.log.f });
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};
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Logger.expressLogger = function (req, res, next) {
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/*
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* The new express.logger
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*
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* This hijack allows us to turn logger on/off dynamically within express
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*/
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if (meta.config.loggerStatus > 0) {
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return opts.express.ofn(req, res, next);
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}
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return next();
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};
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Logger.prepare_io_string = function (_type, _uid, _args) {
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/*
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* This prepares the output string for intercepted socket.io events
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*
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* The format is: io: <uid> <event> <args>
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*/
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try {
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return 'io: ' + _uid + ' ' + _type + ' ' + util.inspect(Array.prototype.slice.call(_args)) + '\n';
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} catch (err) {
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winston.info('Logger.prepare_io_string: Failed', err);
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return 'error';
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}
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};
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var clients = socket.io.sockets.sockets;
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for (var sid in clients) {
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if (clients.hasOwnProperty(sid)) {
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Logger.io_one(clients[sid], clients[sid].uid);
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Logger.io_close = function (socket) {
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/*
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* Restore all hijacked sockets to their original emit/on functions
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*/
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if (!socket || !socket.io || !socket.io.sockets || !socket.io.sockets.sockets) {
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return;
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}
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var clients = socket.io.sockets.sockets;
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for (var sid in clients) {
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if (clients.hasOwnProperty(sid)) {
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var client = clients[sid];
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if (client.oEmit && client.oEmit !== client.emit) {
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client.emit = client.oEmit;
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}
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}
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};
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Logger.io_one = function (socket, uid) {
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/*
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* This function replaces a socket's .emit/.on functions in order to intercept events
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*/
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function override(method, name, errorMsg) {
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return function () {
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if (opts.streams.log.f) {
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opts.streams.log.f.write(Logger.prepare_io_string(name, uid, arguments));
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}
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try {
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method.apply(socket, arguments);
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} catch (err) {
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winston.info(errorMsg, err);
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}
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};
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if (client.$oEmit && client.$oEmit !== client.$emit) {
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client.$emit = client.$oEmit;
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}
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}
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}
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};
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if (socket && meta.config.loggerIOStatus > 0) {
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// courtesy of: http://stackoverflow.com/a/9674248
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socket.oEmit = socket.emit;
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var emit = socket.emit;
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socket.emit = override(emit, 'emit', 'Logger.io_one: emit.apply: Failed');
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Logger.io = function (socket) {
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/*
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* Go through all of the currently established sockets & hook their .emit/.on
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*/
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socket.$oEmit = socket.$emit;
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var $emit = socket.$emit;
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socket.$emit = override($emit, 'on', 'Logger.io_one: $emit.apply: Failed');
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if (!socket || !socket.io || !socket.io.sockets || !socket.io.sockets.sockets) {
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return;
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}
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var clients = socket.io.sockets.sockets;
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for (var sid in clients) {
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if (clients.hasOwnProperty(sid)) {
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Logger.io_one(clients[sid], clients[sid].uid);
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}
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};
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}(exports));
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}
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};
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Logger.io_one = function (socket, uid) {
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/*
|
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* This function replaces a socket's .emit/.on functions in order to intercept events
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*/
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function override(method, name, errorMsg) {
|
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return function () {
|
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|
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|
if (opts.streams.log.f) {
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opts.streams.log.f.write(Logger.prepare_io_string(name, uid, arguments));
|
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}
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|
try {
|
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|
method.apply(socket, arguments);
|
|
|
|
|
} catch (err) {
|
|
|
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|
winston.info(errorMsg, err);
|
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|
|
}
|
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|
|
};
|
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}
|
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|
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if (socket && meta.config.loggerIOStatus > 0) {
|
|
|
|
|
// courtesy of: http://stackoverflow.com/a/9674248
|
|
|
|
|
socket.oEmit = socket.emit;
|
|
|
|
|
var emit = socket.emit;
|
|
|
|
|
socket.emit = override(emit, 'emit', 'Logger.io_one: emit.apply: Failed');
|
|
|
|
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|
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|
|
socket.$oEmit = socket.$emit;
|
|
|
|
|
var $emit = socket.$emit;
|
|
|
|
|
socket.$emit = override($emit, 'on', 'Logger.io_one: $emit.apply: Failed');
|
|
|
|
|
}
|
|
|
|
|
};
|
|
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Barış Soner Uşaklı
8 years ago