Added if not exists to init query, added parsing for blocked config

lib/db.js

@@ -1,22 +1,53 @@
 var sqlite3 = require('sqlite3').verbose();
 var db = new sqlite3.Database("./proxy.db");
+var winston = require("winston");
+
+var fs = require('fs');
+
+// JSON file to configure hosts we should block.
+const blockedFile = "./lib/blocked.json"
+
+const logger = winston.createLogger({
+    transports: [
+        new winston.transports.File({filename: '../proxy.log'})
+    ]
+});
 
 /** TODO - MAKE THESE FUNCTIONS THEIR OWN MODULE. VVV 
  *  FIXME - need to close the database connection
  *          on exit.
  */
 
+function logErrorAndExit(message) {
+    logger.error(message)
+    process.exit(1)
+}
+
 /**
  * Initialize our database.
  */
 exports.initializeDatabase = function() {
     db.serialize(() => {
-        db.run("create table hosts (hostname TEXT, visitcount Int)", (err, row) => {
-            if (err !== undefined || err !== null) {
-                console.log("Error creating database, it likely exists already.");
+        db.run("create table if not exists hosts (hostname TEXT, visitcount Int)", (err, row) => {
+            if (err !== null) {
+                logErrorAndExit("Error creating table hosts: " + err)
             }
         });
+
+        try {
+            fs.readFile(blockedFile, (err, data) => {
+                if (err !== null)
+                    throw err
+                
+                console.log(JSON.parse(data))
+            })
+        } catch(err) {
+            console.log(err)
+            logErrorAndExit("Could not find blocked.json, does it exist?")
+        }
     });
+
+    // fs.accessSync("./blocked.json")
 }
 
 /**