Added file upload and dynamic blog post pages on index

node_modules/mongo-express/bson.js

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+'use strict';
+
+var mongodb = require('mongodb');
+var vm = require('vm');
+var json = require('./json');
+
+
+//Adaptors for BSON types
+
+var DBRef = function(namespace, oid, db) {
+  //Allow empty/undefined db value
+  if (db === undefined || db === null) {
+    db = '';
+  }
+  return mongodb.DBRef(namespace, oid, db);
+};
+
+var Timestamp = function(high, low) {
+  //Switch low/high bits to Timestamp constructor
+  return mongodb.Timestamp(low, high);
+};
+
+//Create sandbox with BSON data types
+exports.getSandbox = function() {
+  return {
+    Long: mongodb.Long,
+    NumberLong: mongodb.Long,
+    Double: mongodb.Double,
+    NumberDouble: mongodb.Double,
+    ObjectId: mongodb.ObjectID,
+    ObjectID: mongodb.ObjectID,
+    Timestamp: Timestamp,
+    DBRef: DBRef,
+    Dbref: DBRef,
+    Binary: mongodb.Binary,
+    BinData: mongodb.Binary,
+    Code: mongodb.Code,
+    Symbol: mongodb.Symbol,
+    MinKey: mongodb.MinKey,
+    MaxKey: mongodb.MaxKey,
+    ISODate: Date,
+    Date: Date
+  };
+};
+
+//JSON.parse doesn't support BSON data types
+//Document is evaluated in a vm in order to support BSON data types
+//Sandbox contains BSON data type functions from node-mongodb-native
+exports.toBSON = function(string) {
+  var sandbox = exports.getSandbox();
+
+  string = string.replace(/ISODate\(/g, 'new ISODate(');
+
+  vm.runInNewContext('doc = eval((' + string + '));', sandbox);
+
+  return sandbox.doc;
+};
+
+// This function as the name suggests attempts to parse
+// the free form string in to BSON, since the possibilities of failure
+// are higher, this function uses a try..catch
+exports.toSafeBSON = function(string) {
+	try{
+		var bsonObject = exports.toBSON(string);
+		return bsonObject;
+	}
+	catch(err){
+		return null;
+	}
+};
+
+// Converts string to ObjectID.  TODO: Add validation.
+exports.toObjectId = function(string){
+  var sandbox = exports.getSandbox();
+  // Strip quotes
+  string = string.replace('"', '').replace('"', '');
+  // Convert ObjectId("526ddf5a9f610ffd26000001") to 526ddf5a9f610ffd26000001
+  string = string.replace(/ObjectID\(/i, '').replace(')', '');
+  // Make sure it's a 24-character string to prevent errors.
+  if (string.length === 24) {
+    return sandbox.ObjectID(string);
+  } else {
+    return false;
+  }
+};
+
+//Convert BSON documents to string
+exports.toString = function(doc) {
+  //Use custom json stringify function from json.js
+  return json.stringify(doc, null, '    ');
+};
+
+exports.toJsonString = function(doc) {
+  var sJson = json.stringify(doc, null);
+  sJson = sJson.replace(/ObjectID\(/g, '{ "$oid": ');
+  sJson = sJson.replace(/\)/g, ' }');
+  return sJson;
+};