Adds predefined validator .password()

Author: dresende

lib/Validators.js

@@ -118,6 +118,30 @@ validators.unique = function (msg) {
 	};
 };
 
+validators.password = function (checks, msg) {
+	if (!msg) {
+		msg    = checks;
+		checks = "luns6"; // (l)owercase, (u)ppercase, (n)umber, (s)pecial characters, (6) min length
+	}
+	if (!msg) {
+		msg    = "weak-password";
+	}
+	var m = checks.match(/([0-9]+)/);
+	var min_len = (m ? parseInt(m[1], 10) : null);
+
+	return function (v, next) {
+		if (!v) return next(msg);
+
+		if (checks.indexOf("l") >= 0 && !v.match(/[a-z]/)) return next(msg);
+		if (checks.indexOf("u") >= 0 && !v.match(/[A-Z]/)) return next(msg);
+		if (checks.indexOf("n") >= 0 && !v.match(/[0-9]/)) return next(msg);
+		if (checks.indexOf("s") >= 0 && !v.match(/[^a-zA-Z0-9]/)) return next(msg);
+		if (min_len !== null && min_len > v.length) return next(msg);
+
+		return next();
+	};
+};
+
 /**
  * Pattern validators are usually based on regular
  * expressions and solve more complicated validations

test/integration2/predefined-validators.js

@@ -268,6 +268,38 @@ describe("Predefined Validators", function () {
 	});
 
 
+	describe("password()", function () {
+		it("should pass 'Passw0r∂'", function (done) {
+			validators.password()('Passw0r∂', checkValidation(done));
+		});
+		it("should not pass 'password' with 'weak-password'", function (done) {
+			validators.password()('password', checkValidation(done, 'weak-password'));
+		});
+		it("should not pass 'Passw0rd' with 'weak-password'", function (done) {
+			validators.password()('Passw0rd', checkValidation(done, 'weak-password'));
+		});
+	});
+
+
+	describe("password('ln4', 'bad-pwd')", function () {
+		it("should pass 'Passw0r∂'", function (done) {
+			validators.password('ln4', 'bad-pwd')('Passw0r∂', checkValidation(done));
+		});
+		it("should pass 'Passw0rd'", function (done) {
+			validators.password('ln4', 'bad-pwd')('Passw0rd', checkValidation(done));
+		});
+		it("should not pass 'P12345' with 'bad-pwd'", function (done) {
+			validators.password('ln4', 'bad-pwd')('P12345', checkValidation(done, 'bad-pwd'));
+		});
+		it("should not pass 'password' with 'bad-pwd'", function (done) {
+			validators.password('ln4', 'bad-pwd')('password', checkValidation(done, 'bad-pwd'));
+		});
+		it("should not pass 'p12' with 'bad-pwd'", function (done) {
+			validators.password('ln4', 'bad-pwd')('p12', checkValidation(done, 'bad-pwd'));
+		});
+	});
+
+
 	describe("patterns.hexString()", function () {
 		it("should pass 'ABCDEF0123456789'", function (done) {
 			validators.patterns.hexString()('ABCDEF0123456789', checkValidation(done));