use native xmllint for schema validation (#273)

package.json

@@ -35,6 +35,7 @@
   "dependencies": {
     "camelcase": "^5.2.0",
     "deflate-js": "^0.2.3",
+    "global": "^4.3.2",
     "node-forge": "^0.7.5",
     "node-rsa": "^0.4.2",
     "uuid": "^3.3.2",
@@ -46,7 +47,8 @@
   "optionalDependencies": {
     "@authenio/xml-encryption": "^0.11.2",
     "libxml-xsd": "^0.5.2",
-    "node-xmllint": "^1.0.0"
+    "node-xmllint": "^1.0.0",
+    "validate-with-xmllint": "^1.0.2"
   },
   "devDependencies": {
     "@types/camelcase": "^5.2.0",
@@ -58,6 +60,6 @@
     "coveralls": "^3.0.2",
     "nyc": "^11.9.0",
     "tslint": "^5.12.1",
-    "typescript": "^3.3.3333"
+    "typescript": "^3.4.5"
   }
 }

src/schema-validator.ts

@@ -4,7 +4,8 @@ import * as path from 'path';
 enum SchemaValidators {
   JAVAC = '@authenio/xsd-schema-validator',
   LIBXML = 'libxml-xsd',
-  XMLLINT = 'node-xmllint'
+  XMLLINT = 'node-xmllint',
+	NATIVEXMLLINT = 'validate-with-xmllint'
 }
 
 export interface SchemaValidator {
@@ -141,6 +142,29 @@ const getValidatorModule: GetValidatorModuleSpec = async () => {
     };
   }
 
+  if (selectedValidator === SchemaValidators.NATIVEXMLLINT) {
+
+		const mod = await import (SchemaValidators.NATIVEXMLLINT);
+
+		return {
+			validate: (xml: string) => {
+				return new Promise((resolve, reject) => {
+
+					process.chdir(path.resolve(__dirname, '../schemas'));
+
+					mod.validateXMLWithXSD(xml, xsd)
+					.then(function(result) {
+						return resolve('SUCCESS_VALIDATE_XML');
+					}, function(err) {
+						console.error('[ERROR] validateXML', err);
+						return reject('ERR_INVALID_XML');
+					})
+
+				});
+			}
+		};
+  }
+
   // allow to skip the validate function if it's in development or test mode if no schema validator is provided
   if (process.env.NODE_ENV === 'dev' || process.env.NODE_ENV === 'test') {
     return {
@@ -156,4 +180,4 @@ const getValidatorModule: GetValidatorModuleSpec = async () => {
 
 export {
   getValidatorModule
-};
+};