Add LDAPS-support to LDAP-Authcontroller

spec/LdapAuth.spec.js

@@ -1,6 +1,8 @@
 const ldap = require('../lib/Adapters/Auth/ldap');
 const mockLdapServer = require('./MockLdapServer');
+const fs = require('fs');
 const port = 12345;
+const sslport = 12346;
 
 it('Should fail with missing options', done => {
   ldap
@@ -31,6 +33,86 @@ it('Should succeed with right credentials', done => {
   });
 });
 
+it('Should succeed with right credentials when LDAPS is used and certifcate is not checked', done => {
+  mockLdapServer(sslport, 'uid=testuser, o=example', false, true).then(server => {
+    const options = {
+      suffix: 'o=example',
+      url: `ldaps://localhost:${sslport}`,
+      dn: 'uid={{id}}, o=example',
+      tlsOptions: { rejectUnauthorized: false }
+    };
+    ldap
+      .validateAuthData({ id: 'testuser', password: 'secret' }, options)
+      .then(done)
+      .catch(done.fail)
+      .finally(() => server.close());
+  });
+});
+
+it('Should succeed when LDAPS is used and the presented certificate is the expected certificate', done => {
+  mockLdapServer(sslport, 'uid=testuser, o=example', false, true).then(server => {
+    const options = {
+      suffix: 'o=example',
+      url: `ldaps://localhost:${sslport}`,
+      dn: 'uid={{id}}, o=example',
+      tlsOptions: {
+        ca: fs.readFileSync(__dirname + '/support/cert/cert.pem'),
+        rejectUnauthorized: true
+      }
+    };
+    ldap
+      .validateAuthData({ id: 'testuser', password: 'secret' }, options)
+      .then(done)
+      .catch(done.fail)
+      .finally(() => server.close());
+  });
+});
+
+it('Should fail when LDAPS is used and the presented certificate is not the expected certificate', done => {
+  mockLdapServer(sslport, 'uid=testuser, o=example', false, true).then(server => {
+    const options = {
+      suffix: 'o=example',
+      url: `ldaps://localhost:${sslport}`,
+      dn: 'uid={{id}}, o=example',
+      tlsOptions: {
+        ca: fs.readFileSync(__dirname + '/support/cert/anothercert.pem'),
+        rejectUnauthorized: true
+      }
+    };
+    ldap
+      .validateAuthData({ id: 'testuser', password: 'secret' }, options)
+      .then(done.fail)
+      .catch(err => {
+        jequal(err.message, 'LDAPS: Certificate mismatch');
+        done();
+      })
+      .finally(() => server.close());
+  });
+});
+
+it('Should fail when LDAPS is used certifcate matches but credentials are wrong', done => {
+  mockLdapServer(sslport, 'uid=testuser, o=example', false, true).then(server => {
+    const options = {
+      suffix: 'o=example',
+      url: `ldaps://localhost:${sslport}`,
+      dn: 'uid={{id}}, o=example',
+      tlsOptions: {
+        ca: fs.readFileSync(__dirname + '/support/cert/cert.pem'),
+        rejectUnauthorized: true
+      }
+    };
+    ldap
+      .validateAuthData({ id: 'testuser', password: 'wrong!' }, options)
+      .then(done.fail)
+      .catch(err => {
+        jequal(err.message, 'LDAP: Wrong username or password');
+        done();
+      })
+      .finally(() => server.close());
+  });
+});
+
+
 it('Should fail with wrong credentials', done => {
   mockLdapServer(port, 'uid=testuser, o=example').then(server => {
     const options = {

spec/MockLdapServer.js

@@ -1,7 +1,13 @@
 const ldapjs = require('ldapjs');
+const fs = require('fs');
 
-function newServer(port, dn, provokeSearchError = false) {
-  const server = ldapjs.createServer();
+const tlsOptions = {
+  key: fs.readFileSync(__dirname + '/support/cert/key.pem'),
+  certificate: fs.readFileSync(__dirname + '/support/cert/cert.pem')
+}
+
+function newServer(port, dn, provokeSearchError = false, ssl = false) {
+  const server = ssl ? ldapjs.createServer(tlsOptions) : ldapjs.createServer();
 
   server.bind('o=example', function (req, res, next) {
     if (req.dn.toString() !== dn || req.credentials !== 'secret')

spec/support/cert/anothercert.pem

@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIE8DCCAtgCCQDjXCYv/hK1rjANBgkqhkiG9w0BAQsFADA5MRIwEAYDVQQDDAls
+b2NhbGhvc3QxIzAhBgkqhkiG9w0BCQEWFG5vLXJlcGx5QGV4YW1wbGUuY29tMCAX
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+wHgxPsgsd2h0gr21doWB1BsdAu8=
+-----END CERTIFICATE-----

spec/support/cert/cert.pem

@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIE8DCCAtgCCQDaLjopNQCJuTANBgkqhkiG9w0BAQsFADA5MRIwEAYDVQQDDAls
+b2NhbGhvc3QxIzAhBgkqhkiG9w0BCQEWFG5vLXJlcGx5QGV4YW1wbGUuY29tMCAX
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+N0vpdSSemKGQcrzquNqDJhUoXgQ=
+-----END CERTIFICATE-----

spec/support/cert/key.pem

@@ -0,0 +1,51 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIJKQIBAAKCAgEAvFf3I2RnIbp82Dd0AooAMamxMCgug4zurMdA40mV8G+MA4Y5
+XFcGmOYT7LC94Z2nZ4tI+MNSiLKQY3Zq+OYGGmn/zVkre8+02afxTjGmLVJWJXxX
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+-----END RSA PRIVATE KEY-----

src/Adapters/Auth/ldap.js

@@ -12,23 +12,32 @@ function validateAuthData(authData, options) {
       );
     });
   }
+  const clientOptions = (options.url.startsWith("ldaps://")) ?
+    { url: options.url, tlsOptions: options.tlsOptions } : { url: options.url };
 
-  const client = ldapjs.createClient({ url: options.url });
+  const client = ldapjs.createClient(clientOptions);
   const userCn =
     typeof options.dn === 'string'
       ? options.dn.replace('{{id}}', authData.id)
       : `uid=${authData.id},${options.suffix}`;
 
   return new Promise((resolve, reject) => {
-    client.bind(userCn, authData.password, err => {
-      if (err) {
-        client.destroy(err);
-        return reject(
-          new Parse.Error(
-            Parse.Error.OBJECT_NOT_FOUND,
-            'LDAP: Wrong username or password'
-          )
-        );
+    client.bind(userCn, authData.password, ldapError => {
+      if (ldapError) {
+        let error;
+        switch (ldapError.code) {
+          case 49:
+            error = new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'LDAP: Wrong username or password');
+            break;
+          case "DEPTH_ZERO_SELF_SIGNED_CERT":
+            error = new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'LDAPS: Certificate mismatch');
+            break;
+          default:
+            error = new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'LDAP: Somthing went wrong (' + ldapError.code + ')');
+        }
+        reject(error);
+        client.destroy(ldapError);
+        return;
       }
 
       if (
@@ -50,7 +59,8 @@ function optionsAreValid(options) {
     typeof options === 'object' &&
     typeof options.suffix === 'string' &&
     typeof options.url === 'string' &&
-    options.url.startsWith('ldap://')
+    (options.url.startsWith('ldap://') ||
+     options.url.startsWith('ldaps://') && typeof options.tlsOptions === 'object')
   );
 }