Added client certificate request

Author: Miel Vander Sande

lib/LinkedDataFragmentsServer.js

@@ -15,8 +15,11 @@ function LinkedDataFragmentsServer(options) {
     server = require('http').createServer();
     break;
   case 'https':
-    var httpsOptions = _.mapValues((options.ssl || {}).keys || {}, readHttpsOption);
-    server = require('https').createServer(httpsOptions);
+    var ssl = options.ssl || {};
+    // WebID authentication requires a client certificate
+    if (ssl.webid)
+      ssl.requestCert = ssl.rejectUnauthorized = true;
+    server = require('https').createServer(_.mapValues(ssl.keys, readHttpsOption));
     break;
   default:
     throw new Error('The configured protocol ' + options.protocol + ' is invalid.');