Fixes for authlib-injector accounts#2890
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The previous authlib-injector authentication implementation always assumed that the authlib-injector API location was located at https://authlibinjectorserver.example.com/api/yggdrasil. Blessing Skin structures their API like that, but other authlib-injector-compatible Yggdrasil implementations do not. Per the authlib-injector specification, the API root can be located at any path, and that path should be pointed to by the `X-Authlib-Injector-API-Location` header [1]. With this change, the default AuthlibInjectorAPIPath is kept as `/api/yggdrasil`, so users will not need to update their config. See also unmojang/drasl#66 (comment). [1] https://github.com/yushijinhun/authlib-injector/wiki/Yggdrasil-%E6%9C%8D%E5%8A%A1%E7%AB%AF%E6%8A%80%E6%9C%AF%E8%A7%84%E8%8C%83
Instead of sending an invalid profile key signature, it's better to just send no signature. If we send an invalid signature, the vanilla server will throw an error even if `enforce-secure-profile` is `false`. See also yushijinhun/authlib-injector#266.
The DIY HTTP client had many problems, as is expected when rolling your own HTTP implementation without following the spec. Fortunately, we can use SocketsHttpHandler.ConnectCallback to make HttpClient use our custom TCP client.
Some authlib-injector-compatible authentication servers implement the POST /player/certificates route used for fetching player certificates. To comply with the authlib-injector Yggdrasil server specification [1], we first query the authlib-injector metadata and check for the `feature.enable_profile_key` flag. If the flag is set, the authentication server supports the /player/certificates route. In this case, checking the authlib-injector metadata isn't really necessary; if the /player/certificates request fails for any reason, we simply ignore it anyway. [1] https://github.com/yushijinhun/authlib-injector/wiki/Yggdrasil-%E6%9C%8D%E5%8A%A1%E7%AB%AF%E6%8A%80%E6%9C%AF%E8%A7%84%E8%8C%83
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Thanks for the work. |
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…asil auth Re-implements the changes from PR MCCTeam#2890, adapted for the current codebase which uses System.Text.Json.Nodes and HttpClient instead of the legacy Json.JSONData and hand-rolled SslStream HTTP client. Changes: - Settings.cs: Convert AuthlibServer from struct to class with [TomlDoNotInlineObject]; convert Host to a property that parses 'host:port' syntax; add AuthlibInjectorAPIPath (default '/api/yggdrasil') for servers that use a different prefix (e.g. Drasl uses '/authlib-injector'); add UseHttps (default true) so local/dev auth servers without TLS work. - ConfigComments.resx: Add descriptive inline comments for the new AuthlibServer fields (Host, Port, AuthlibInjectorAPIPath, UseHttps). - ProtocolHandler.cs: Replace three hardcoded '/api/yggdrasil/...' paths with AuthlibInjectorAPIPath-based paths (authenticate, refresh, join). Replace hand-rolled TcpClient+SslStream HTTP in DoHTTPSRequest with HttpClient+SocketsHttpHandler (ConnectCallback routes through ProxyHandler). Add useHttps parameter so HTTP-only auth servers are supported. - KeyUtils.cs: Add AuthServerSupportsProfileKeys() that fetches the authlib-injector metadata endpoint and checks feature.enable_profile_key. Update GetNewProfileKeys() to skip key fetch when the auth server does not support profile keys; build the cert URL dynamically using AuthlibInjectorAPIPath for Yggdrasil; always fetch real certs instead of returning a dummy response. Remove MakeDummyResponse() which is no longer needed. Tested against a local Drasl instance with authlib-injector 1.2.7 on a 1.21.11 Minecraft server — full auth flow (login, profile key fetch, session join) confirmed working end-to-end. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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I've re-implemented the code in #2963 and tested it. It works. |
milutinke
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…asil auth Re-implements the changes from PR MCCTeam#2890, adapted for the current codebase which uses System.Text.Json.Nodes and HttpClient instead of the legacy Json.JSONData and hand-rolled SslStream HTTP client. Changes: - Settings.cs: Convert AuthlibServer from struct to class with [TomlDoNotInlineObject]; convert Host to a property that parses 'host:port' syntax; add AuthlibInjectorAPIPath (default '/api/yggdrasil') for servers that use a different prefix (e.g. Drasl uses '/authlib-injector'); add UseHttps (default true) so local/dev auth servers without TLS work. - ConfigComments.resx: Add descriptive inline comments for the new AuthlibServer fields (Host, Port, AuthlibInjectorAPIPath, UseHttps). - ProtocolHandler.cs: Replace three hardcoded '/api/yggdrasil/...' paths with AuthlibInjectorAPIPath-based paths (authenticate, refresh, join). Replace hand-rolled TcpClient+SslStream HTTP in DoHTTPSRequest with HttpClient+SocketsHttpHandler (ConnectCallback routes through ProxyHandler). Add useHttps parameter so HTTP-only auth servers are supported. - KeyUtils.cs: Add AuthServerSupportsProfileKeys() that fetches the authlib-injector metadata endpoint and checks feature.enable_profile_key. Update GetNewProfileKeys() to skip key fetch when the auth server does not support profile keys; build the cert URL dynamically using AuthlibInjectorAPIPath for Yggdrasil; always fetch real certs instead of returning a dummy response. Remove MakeDummyResponse() which is no longer needed. Tested against a local Drasl instance with authlib-injector 1.2.7 on a 1.21.11 Minecraft server — full auth flow (login, profile key fetch, session join) confirmed working end-to-end. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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This PR includes several fixes for authlib-injector (here called "Yggdrasil" or "Authlib") accounts. For unmojang/drasl#66.
Main.General.AuthServer.AuthlibInjectorAPIPath, to allow specifying the path to the root of the authlib-injector API. Whereas Blessing Skin places their API at/api/yggdrasil, other authlib-injector servers (Drasl, Ely.By) do not, so this change enables compatibility with them.AuthServerconfig optionsDoHTTPSRequestwithSystem.Net.Http.HttpClient, but still respect the configured proxy.TcpClienttoHttpClient---that's what I did here. It sent the request through my TCP proxy when I tested it. Is this correct?feature.enable_profile_keyflag setSee commit message for more details. I'm a C# amateur, so a thorough review would be appreciated :)