将 authenticationDatabase 参数传递给 mongo C# 驱动程序

Question

以下命令行对我有用：

mongo -u myUsername -p myPassword --authenticationDatabase myAuthDb
use myDb
db.myCollection.find({})

但是我似乎无法从 C# 正确地进行身份验证。我的代码：

var connectionString = "mongodb://myUsername:myPassword@localhost:27017/myAuthDb";
var mongoSettings = MongoClientSettings.FromConnectionString(connectionString);
var mongoClient = new MongoDB.Driver.MongoClient(mongoSettings);
mongoClient.GetDatabase("myDb").GetCollection("myCollection").FindAsync(...);

抛出以下异常：

MongoDB.Driver.MongoAuthenticationException: Unable to authenticate using sasl protocol mechanism SCRAM-SHA-1.
 ---> MongoDB.Driver.MongoCommandException: Command saslStart failed: Authentication failed..
   at MongoDB.Driver.Core.WireProtocol.CommandUsingQueryMessageWireProtocol`1.ProcessReply(ConnectionId connectionId, ReplyMessage`1 reply)
   at MongoDB.Driver.Core.WireProtocol.CommandUsingQueryMessageWireProtocol`1.ExecuteAsync(IConnection connection, CancellationToken cancellationToken)
   at MongoDB.Driver.Core.Authentication.SaslAuthenticator.AuthenticateAsync(IConnection connection, ConnectionDescription description, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at MongoDB.Driver.Core.Connections.BinaryConnection.OpenHelperAsync(CancellationToken cancellationToken)
   at MongoDB.Driver.Core.Servers.Server.GetChannelAsync(CancellationToken cancellationToken)
   at MongoDB.Driver.Core.Operations.RetryableReadContext.InitializeAsync(CancellationToken cancellationToken)
   at MongoDB.Driver.Core.Operations.RetryableReadContext.CreateAsync(IReadBinding binding, Boolean retryRequested, CancellationToken cancellationToken)
   at MongoDB.Driver.Core.Operations.FindOperation`1.ExecuteAsync(IReadBinding binding, CancellationToken cancellationToken)
   at MongoDB.Driver.OperationExecutor.ExecuteReadOperationAsync[TResult](IReadBinding binding, IReadOperation`1 operation, CancellationToken cancellationToken)
   at MongoDB.Driver.MongoCollectionImpl`1.ExecuteReadOperationAsync[TResult](IClientSessionHandle session, IReadOperation`1 operation, ReadPreference readPreference, CancellationToken cancellat
ionToken)
   at MongoDB.Driver.MongoCollectionImpl`1.UsingImplicitSessionAsync[TResult](Func`2 funcAsync, CancellationToken cancellationToken)
...

我假设问题出在 authenticationDatabase 上，因为当我如下使用 admin db 时，一切正常。

mongo -u root -p rootPassword
use myDb
db.myCollection.find({})

var connectionString = "mongodb://root:rootPassword@localhost:27017";
var mongoSettings = MongoClientSettings.FromConnectionString(connectionString);
var mongoClient = new MongoDB.Driver.MongoClient(mongoSettings);
mongoClient.GetDatabase("myDb").GetCollection("myCollection").FindAsync(...);

我正在使用最新版本。

Mongo 4.2 版

Mongo C# 驱动程序版本 2.10.2

Answer 1

试试这个连接字符串：

var connectionString = "mongodb://myUsername:myPassword@localhost:27017/myDb?authSource=myAuthDb";

或没有初始数据库：

var connectionString = "mongodb://myUsername:myPassword@localhost:27017?authSource=myAuthDb";

Connection String URI Format documentation 关于authSource 并不是 100% 清楚