missing contacts when logging in from Element X

[clayrisser]

Describe the bug
When trying to login with Element X it gives the error missing contacts.

Here is the log trace I get.

2025-03-31T19:35:17.032487Z ERROR http.server.request{otel.kind="server" otel.name="POST /oauth2/registration" network.protocol.name="http" network.protocol.version="1.1" htt
p.request.method="POST" url.path="/oauth2/registration" url.scheme="http" http.route="/oauth2/registration" user_agent.original="Element X/25.03.7 (iPhone 15 Pro Max; iOS 18.
1; Scale/3.00)"}:handlers.oauth2.registration.post: mas_handlers::oauth2::registration: crates/handlers/src/oauth2/registration.rs:190: error=denied by the policy: [Violation
 { msg: "missing contacts", field: None }]     

I have the following policy set.

policy:
  data:
    admin_users: []
    admin_clients: []
    client_registration:
      allow_host_mismatch: true
      allow_insecure_uris: true
      allow_missing_client_uri: true
      allow_missing_contacts: true

To Reproduce
Steps to reproduce the behavior:

1. Install latest Element X
2. Try to login to custom matrix server configured with MAS

Expected behavior
I expect to login without errors.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone6
• OS: iOS
• Version: latest

[wrenix]

Is this the reason why i could not login with Element-X anymore?

i got the following info log:

2025-04-25T07:30:50.574507Z  INFO http.server.request{otel.kind="server" otel.name="POST /oauth2/registration" network.protocol.name="http" network.protocol.version="1.1" http.request.method="POST" url.path="/oauth2/registration" url.scheme="http" http.route="/oauth2/registration" user_agent.original="Element X <redacted>"}: handlers.oauth2.registration.post: mas_handlers::oauth2::registration: crates/handlers/src/oauth2/registration.rs:202: Client registration body=ClientMetadata { redirect_uris: Some([Url { scheme: "io.element", cannot_be_a_base: false, username: "", password: None, host: None, port: None, path: "/callback", query: None, fragment: None }]), response_types: Some([ResponseType({Code})]), grant_types: Some([AuthorizationCode, RefreshToken, DeviceCode[]), application_type: Some(Native), contacts: None, client_name: Some(Localized { non_localized: "Element", localized: {} }), logo_uri: Some(Localized { non_localized: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("element.io")), port: None, path: "/mobile-icon.png", query: None, fragment: None }, localized: {} }), client_uri: Some(Localized { non_localized: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("element.io")), port: None, path: "/", query: None, fragment: None }, localized: {} }), policy_uri: Some(Localized { non_localized: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("element.io")), port: None, path: "/privacy", query: None, fragment: None }, localized: {} }), tos_uri: Some(Localized { non_localized: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("element.io")), port: None, path: "/acceptable-use-policy-terms", query: None, fragment: None }, localized: {} }), jwks_uri: None, jwks: None, software_id: None, software_version: None, sector_identifier_uri: None, subject_type: None, token_endpoint_auth_method: Some(None), token_endpoint_auth_signing_alg: None, id_token_signed_response_alg: None, id_token_encrypted_response_alg: None, id_token_encrypted_response_enc: None, userinfo_signed_response_alg: None, userinfo_encrypted_response_alg: None, userinfo_encrypted_response_enc: None, request_object_signing_alg: None, request_object_encryption_alg: None, request_object_encryption_enc: None, default_max_age: None, require_auth_time: None, default_acr_values: None, initiate_login_uri: None, request_uris: None, require_signed_request_object: None, require_pushed_authorization_requests: None, introspection_signed_response_alg: None, introspection_encrypted_response_alg: None, introspection_encrypted_response_enc: None, post_logout_redirect_uris: None }
2025-04-25T07:30:50.575021Z ERROR http.server.request{otel.kind="server" otel.name="POST /oauth2/registration" network.protocol.name="http" network.protocol.version="1.1" http.request.method="POST" url.path="/oauth2/registration" url.scheme="http" http.route="/oauth2/registration" user_agent.original="Element X <redacted>"}: handlers.oauth2.registration.post: mas_handlers::oauth2::registration: crates/handlers/src/oauth2/registration.rs:190: error=denied by the policy: [Violation { msg: "missing contacts", field: None }]

[pixlwave]

Noting as mentioned in element-hq/element-x-ios#4052 and element-hq/element-x-android#4623 (comment) that this requirement was removed in September: #3202

Updating to the latest version of MAS should fix the problem.

[wrenix]

Oh my semver range has not updated it, hope MAS get version v1 / stable soon.

Works for me now, thanks you.