Add --access-log

Author: pierotofy

config.js

@@ -73,7 +73,8 @@ Options:
     --ssl-key <file>	Path to .pem SSL key file
     --ssl-cert <file>	Path to SSL .pem certificate
     --asr <file>	Path to configuration for enabling the autoscaler. This is combined with the provider's default configuration (default: none)
-
+    --access-log <file>	Path where to store access log file (default: none)
+    
 Log Levels: 
 error | debug | info | verbose | debug | silly 
 `);
@@ -105,6 +106,10 @@ config.logger.maxFileSize = 1024 * 1024 * 100; // Max file size in bytes of each
 config.logger.maxFiles = 10; // Max number of log files kept
 config.logger.logDirectory = '' // Set this to a full path to a directory - if not set logs will be written to the application directory.
 
+config.accessLog = {};
+config.accessLog.maxFileSize = 1024 * 1024 * 100;
+config.accessLog.logFile = readConfig("access-log");
+
 for (let k in argv){
     if (k === '_' || k.length === 1) continue;
     let ck = k.replace(/-/g, "_");

libs/accessLog.js

@@ -0,0 +1,56 @@
+/**
+ *  ClusterODM - A reverse proxy, load balancer and task tracker for NodeODM
+ *  Copyright (C) 2018-present MasseranoLabs LLC
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+"use strict";
+
+let config = require('../config');
+let winston = require('winston');
+let fs = require('fs');
+let path = require('path');
+
+let accessLog = () => {};
+
+if (config.accessLog.logFile){
+    const logPath = path.dirname(config.accessLog.logFile);
+
+    try {
+        fs.accessSync(logPath, fs.W_OK);
+    } catch (e) {
+        console.log( "Access log directory '" + logPath + "' cannot be written to"  );
+        throw e;
+    }
+
+
+    let logger = winston.createLogger({ transports: [
+            new winston.transports.File({
+                format: winston.format.printf(info => `${new Date().toISOString()} ${info.message}`), 
+                filename: config.accessLog.logFile,
+                json: false,
+                maxsize: config.accessLog.maxFileSize,
+                maxFiles: 1,
+                level: "info"
+            })
+        ]});
+
+    accessLog = (remoteIp, url) => {
+        logger.info(`[${remoteIp}] ${url}`);
+    }
+}
+
+
+
+module.exports = accessLog;

libs/proxy.js

@@ -30,6 +30,7 @@ const utils = require('./utils');
 const routetable = require('./routetable');
 const tasktable = require('./tasktable');
 const logger = require('./logger');
+const accessLog = require('./accessLog');
 const statusCodes = require('./statusCodes');
 const taskNew = require('./taskNew');
 const async = require('async');
@@ -204,12 +205,14 @@ module.exports = {
             try{
                 const urlParts = url.parse(req.url, true);
                 const { query, pathname } = urlParts;
-
+                
                 if (publicPath(pathname)){
                     forwardToReferenceNode(req, res);
                     return;
                 }
 
+                accessLog(req.socket.remoteAddress, req.url);
+
                 if (req.method === 'POST' && pathname === '/commit'){
                     const body = await getReqBody(req);
                     try{