Create function to change password and algorithm

CHANGELOG.md

@@ -4,6 +4,10 @@ This change log is started in 0.3.2;
 ## 0.3.4 (2016-04-28)
 - Using algorithm and password in pvDecrypt
 - Using algorithm and password in pvEncrypt
+- Create function to change password and algorithm.
+```js
+	sqlite.change(filePath, oldPassword, newPassword, oldAlgorithm, newAlgorithm);
+```
 
 ## 0.3.3 (2016-04-26)
 - Show error if password is invalid - review

sqlite.js

@@ -61,6 +61,8 @@ sqlite.prototype.pvDecrypt = function(buffer, algorithm, password){
    * Buffer encryption
    *
    * @param {Object} buffer - buffer
+   * @param {String} algorithm - Algorithm
+   * @param {String} password - Password
    * @return {Object} - Encrypted buffer
  */
 sqlite.prototype.pvEncrypt = function(buffer, algorithm, password){
@@ -193,10 +195,9 @@ sqlite.prototype.encrypt = function(from, to, password, algorithm, options){
 	* @param {String} newPassword - password
 	* @param {String} algorithm - algorithm
 	* @param {String} newAlgorithm - newAlgorithm
-	* @param {Function} callback - callback function
 */
 
-sqlite.prototype.changePassword = function(file, oldPassword, newPassword, algorithm, newAlgorithm, callback) {
+sqlite.prototype.change = function(file, oldPassword, newPassword, algorithm, newAlgorithm) {
 	if(!file){
 		throw "Please inform a file!";
 	}else{
@@ -220,7 +221,15 @@ sqlite.prototype.changePassword = function(file, oldPassword, newPassword, algor
 					if(this.algorithms.indexOf(newAlgorithm)==-1){
 						throw "Your new algorithm is not supported";
 					}else{
-
+						try{
+							this.connect(file, oldPassword, algorithm);
+							var decrypted = this.pvDecrypt(fs.readFileSync(file), algorithm, oldPassword);
+							var encrypted = this.pvEncrypt(decrypted,newAlgorithm, newPassword);
+							var buffer = new Buffer(encrypted);
+							fs.writeFileSync(file, buffer);
+						}catch(x){
+							throw x;
+						}
 					}
 				}
 			}

test/app.js

@@ -1,45 +1,45 @@
 var sqlite = require('../sqlite.js'); //requiring
 
 // Change password
-sqlite.changePassword('test/Database.rec','myPass');
+// sqlite.change('test/Database.rec','88560848','myPass','aes-256-ctr','camellia-256-cfb1');
 
 // To use initialization vector
-// sqlite.iv = '13ewr3iJ';
+sqlite.iv = '13ewr3iJ';
 
-// //Connecting - (databaseFile, [password], [algorithm])
-// try{
-// 	sqlite.connect('test/Database.rec','myPass','aes-256-ctr');
-// }catch(x){
-// 	console.log(x)
-// }
+//Connecting - (databaseFile, [password], [algorithm])
+try{
+	sqlite.connect('test/Database.rec','myPass','camellia-256-cfb1');
+}catch(x){
+	console.log(x)
+}
 
-// // Creating Table - you can run any command
-// sqlite.run("CREATE TABLE COMPANYS(ID  INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL);");
+// Creating Table - you can run any command
+sqlite.run("CREATE TABLE COMPANYS(ID  INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL);");
 
-// //Inserting - this function can be sync to, look the wiki
-// sqlite.insert("COMPANYS",{NAME:"COMPANY"}, function(inserid){
-// 	console.log(inserid);
-// });
+//Inserting - this function can be sync to, look the wiki
+sqlite.insert("COMPANYS",{NAME:"COMPANY"}, function(inserid){
+	console.log(inserid);
+});
 
-// //Updating - returns the number of rows modified - can be async too
-// var rows_modified = sqlite.update("COMPANYS",{NAME:"TESTING UPDATE"},{ID:1});
+//Updating - returns the number of rows modified - can be async too
+var rows_modified = sqlite.update("COMPANYS",{NAME:"TESTING UPDATE"},{ID:1});
 
-// //Create your function
-// function concat(a,b){
-// 	return a+b;
-// }
+//Create your function
+function concat(a,b){
+	return a+b;
+}
 
-// //Add your function to connection
-// sqlite.create_function(concat);
+//Add your function to connection
+sqlite.create_function(concat);
 
-// // Use your function in the SQL
-// console.log(sqlite.run("SELECT ID , concat(ID, NAME) as concat FROM COMPANYS;"));
+// Use your function in the SQL
+console.log(sqlite.run("SELECT ID , concat(ID, NAME) as concat FROM COMPANYS;"));
 
-// //Decrypting database file
-// sqlite.decrypt("test/Database.rec","test/decrypted.db", 'myPass');
+//Decrypting database file
+sqlite.decrypt("test/Database.rec","test/decrypted.db", 'myPass');
 
-// //Encrypting database file
-// sqlite.encrypt("test/decrypted.db","test/reencrypted.rec", 'myPass',"bf",{iv: "ads343ef"});
+//Encrypting database file
+sqlite.encrypt("test/decrypted.db","test/reencrypted.rec", 'myPass',"bf",{iv: "ads343ef"});
 
-// // Closing connection 
-// sqlite.close();
+// Closing connection 
+sqlite.close();