paypro: move validity and issuer validation into common.

lib/PayPro.js

@@ -101,36 +101,12 @@ PayPro.prototype.x509Verify = function() {
     //
     // Check Validity of Certificates
     //
-    var validityVerified = true;
-    var now = Date.now();
-    var cBefore = c.tbsCertificate.validity.notBefore.value;
-    var cAfter = c.tbsCertificate.validity.notAfter.value;
-    var nBefore = nc.tbsCertificate.validity.notBefore.value;
-    var nAfter = nc.tbsCertificate.validity.notAfter.value;
-    if (cBefore > now || cAfter < now || nBefore > now || nAfter < now) {
-      validityVerified = false;
-    }
+    var validityVerified = PayPro.validateCertTime(c, nc);
 
     //
     // Check the Issuer matches the Subject of the next certificate:
     //
-    var issuer = c.tbsCertificate.issuer;
-    var subject = nc.tbsCertificate.subject;
-    var issuerVerified = issuer.type === subject.type && issuer.value.every(function(issuerArray, i) {
-      var subjectArray = subject.value[i];
-      return issuerArray.every(function(issuerObject, i) {
-        var subjectObject = subjectArray[i];
-
-        var issuerObjectType = issuerObject.type.join('.');
-        var subjectObjectType = subjectObject.type.join('.');
-
-        var issuerObjectValue = issuerObject.value.toString('hex');
-        var subjectObjectValue = subjectObject.value.toString('hex');
-
-        return issuerObjectType === subjectObjectType
-          && issuerObjectValue === subjectObjectValue;
-      });
-    });
+    var issuerVerified = PayPro.validateCertIssuer(c, nc);
 
     //
     // Verify current Certificate signature

lib/browser/PayPro.js

@@ -127,36 +127,12 @@ PayPro.prototype.x509Verify = function(key) {
     //
     // Check Validity of Certificates
     //
-    var validityVerified = true;
-    var now = Date.now();
-    var cBefore = c.tbsCertificate.validity.notBefore.value;
-    var cAfter = c.tbsCertificate.validity.notAfter.value;
-    var nBefore = nc.tbsCertificate.validity.notBefore.value;
-    var nAfter = nc.tbsCertificate.validity.notAfter.value;
-    if (cBefore > now || cAfter < now || nBefore > now || nAfter < now) {
-      validityVerified = false;
-    }
+    var validityVerified = PayPro.validateCertTime(c, nc);
 
     //
     // Check the Issuer matches the Subject of the next certificate:
     //
-    var issuer = c.tbsCertificate.issuer;
-    var subject = nc.tbsCertificate.subject;
-    var issuerVerified = issuer.type === subject.type && issuer.value.every(function(issuerArray, i) {
-      var subjectArray = subject.value[i];
-      return issuerArray.every(function(issuerObject, i) {
-        var subjectObject = subjectArray[i];
-
-        var issuerObjectType = issuerObject.type.join('.');
-        var subjectObjectType = subjectObject.type.join('.');
-
-        var issuerObjectValue = issuerObject.value.toString('hex');
-        var subjectObjectValue = subjectObject.value.toString('hex');
-
-        return issuerObjectType === subjectObjectType
-          && issuerObjectValue === subjectObjectValue;
-      });
-    });
+    var issuerVerified = PayPro.validateCertIssuer(c, nc);
 
     //
     // Verify current Certificate signature

lib/common/PayPro.js

@@ -93,6 +93,42 @@ PayPro.getTBSCertificate = function(data) {
   return data.slice(start, end);
 };
 
+// Check Validity of Certificates
+PayPro.validateCertTime = function(c, nc) {
+  var validityVerified = true;
+  var now = Date.now();
+  var cBefore = c.tbsCertificate.validity.notBefore.value;
+  var cAfter = c.tbsCertificate.validity.notAfter.value;
+  var nBefore = nc.tbsCertificate.validity.notBefore.value;
+  var nAfter = nc.tbsCertificate.validity.notAfter.value;
+  if (cBefore > now || cAfter < now || nBefore > now || nAfter < now) {
+    validityVerified = false;
+  }
+  return validityVerified;
+};
+
+// Check the Issuer matches the Subject of the next certificate:
+PayPro.validateCertIssuer = function(c, nc) {
+  var issuer = c.tbsCertificate.issuer;
+  var subject = nc.tbsCertificate.subject;
+  var issuerVerified = issuer.type === subject.type && issuer.value.every(function(issuerArray, i) {
+    var subjectArray = subject.value[i];
+    return issuerArray.every(function(issuerObject, i) {
+      var subjectObject = subjectArray[i];
+
+      var issuerObjectType = issuerObject.type.join('.');
+      var subjectObjectType = subjectObject.type.join('.');
+
+      var issuerObjectValue = issuerObject.value.toString('hex');
+      var subjectObjectValue = subjectObject.value.toString('hex');
+
+      return issuerObjectType === subjectObjectType
+        && issuerObjectValue === subjectObjectValue;
+    });
+  });
+  return issuerVerified;
+};
+
 PayPro.RootCerts = RootCerts;
 
 PayPro.proto = {};