Feature/172 x509 support

[Ahmadre]

Related Issues

• pem certfile support #172

Summary

This PR extends the Authenticator in the driver to authenticate via X.509.

It uses under the hood following connection: https://www.mongodb.com/docs/manual/tutorial/configure-x509-client-authentication/#authenticate-with-a-x-509-certificate

Verifications

1. Atlas Sharded Cluster created in MongoDB Cloud
2. Created an X.509 PEM File (password protected) and downloaded the *.pem file.
3. Loaded *.pem file via Dart (was already supported):

var db = Db('mongodb+srv://mongo-dart.xxxxxxx.mongodb.net/?authSource=\$external&authMechanism=MONGODB-X509&retryWrites=true&w=majority');

await db.open(
  secure: true,
  tlsCertificateKeyFile: tlsFilePath,
  tlsCertificateKeyFilePassword: tlsFilePassword
);

Please keep in mind, that authSource=\$external is just a Dart escaped String for: authSource=$external ! If you setup your MongoDB URI via Environment variables keep in mind that the official Mongo setting for the AuthDB is: $external!

4. Test on Windows Desktop (example.dart):

Launching lib\main.dart on Windows in debug mode...
package:mongo_dart_web/main.dart:1
√  Built build\windows\x64\runner\Debug\web.exe.
Connecting to VM Service at ws://127.0.0.1:54980/X3MBcL2N9iY=/ws
flutter: ====================================================================
flutter: >> Adding Authors
flutter: {_id: ObjectId("65d5648f476690c4e2000000"), name: William Shakespeare, email: william@shakespeare.com, age: 587}
flutter: {_id: ObjectId("65d5648f476691c4e2000000"), name: Jorge Luis Borges, email: jorge@borges.com, age: 123}
flutter: ====================================================================
flutter: >> Authors ordered by age ascending
flutter: [Jorge Luis Borges]:[jorge@borges.com]:[123]
flutter: [William Shakespeare]:[william@shakespeare.com]:[587]
flutter: ====================================================================
flutter: >> Adding Users
flutter: {_id: ObjectId("65d5648f476692c4e2000000"), login: jdoe, name: John Doe, email: john@doe.com}
flutter: {_id: ObjectId("65d5648f476693c4e2000000"), login: lsmith, name: Lucy Smith, email: lucy@smith.com}
flutter: ====================================================================
flutter: >> Users ordered by login descending
flutter: [lsmith]:[Lucy Smith]:[lucy@smith.com]
flutter: [jdoe]:[John Doe]:[john@doe.com]
flutter: ====================================================================
flutter: >> Adding articles
flutter: ====================================================================
flutter: >> Articles ordered by title ascending
flutter: [Caminando por Buenos Aires]:[Las callecitas de Buenos Aires tienen ese no se que...]:[65d5648f476691c4e2000000]
flutter: [I must have seen thy face before]:[Thine eyes call me in a new way]:[65d5648f476690c4e2000000]
Reloaded 98 of 1661 libraries in 392ms (compile: 144 ms, reload: 102 ms, reassemble: 65 ms).
Application finished.

[Ahmadre]

@giorgiofran

[giorgiofran]

Thanks Ahmadre

[Ahmadre]

Thanks Ahmadre

Thank you too :)