Logging in via OIDC leads to parsing error

Bug Description

When using Jumpcloud as an OIDC IdP, users get the following error message when logging in:

Failed to contact token endpoint, Failed to parse server response

The following error populates in the logs:

hbbs  | [2025-02-27 20:02:30.685996 +00:00] ERROR [src/oidc.rs:743] Failed to contact token endpoint, Parse(Error { path: Path { segments: [] }, original: Error("Failed to parse payload JSON: Error(\"invalid type: string \\\"true\\\", expected a boolean\", line: 1, column: 585)", line: 1, column: 1765) }, [123, 34, 97, 99, 99, 101, 115, 115, 95, 116, 111, 107, 101, 110, 34, 58, 34, 111, 114, 121, 95, 97, 116, 95, 68, 89, 78, 114, 83, 86, 52, 109, 109, 67, 99, 50, 121, 115, 71, 67, 84, 111, 55, 81, 72, 115, 87, 53, 106, 54, 113, 98, 86, 113, 52, 105, 112, 68, 103, 88, 109, 113, 56, 69, 74, 112, 81, 46, 50, 71, 70, 107, 109, 55, 56, 78, 113, 74, 100, 65, 99, 52, 122, 110, 85, 76, 85, 85, 54, 89, 56, 110, 95, 84, 90, 119, 120, 67, 121, 77, 88, 112, 88, 101, 76, 111, 90, 117, 83, 49, 111, 34, 44, 34, 101, 120, 112, 105, 114, 101, 115, 95, 105, 110, 34, 58, 51, 54, 48, 48, 44, 34, 105, 100, 95, 116, 111, 107, 101, 110, 34, 58, 34, 101, 121, 74, 104, 98, 71, 99, 105, 79, 105, 74, 83, 85, 122, 73, 49, 78, 105, 73, 115, 73, 109, 116, 112, 90, 67, 73, 54, 73, 110, 66, 121, 97, 88, 90, 104, 100, 71, 85, 54, 97, 72, 108, 107, 99, 109, 69, 117, 98, 51, 66, 108, 98, 109, 108, 107, 76, 109, 108, 107, 76, 88, 82, 118, 97, 50, 86, 117, 73, 105, 119, 105, 100, 72, 108, 119, 73, 106, 111, 105, 83, 108, 100, 85, 73, 110, 48, 46, 101, 121, 74, 104, 100, 70, 57, 111, 89, 88, 78, 111, 73, 106, 111, 105, 76, 85, 49, 104, 98, 50, 120, 82, 76, 88, 108, 72, 82, 51, 99, 121, 97, 50, 104, 116, 97, 72, 90, 82, 85, 49, 104, 104, 85, 83, 73, 115, 73, 109, 70, 49, 90, 67, 73, 54, 87, 121, 74, 109, 77, 84, 100, 108, 78, 109, 89, 52, 79, 67, 48, 53, 89, 122, 89, 48, 76, 84, 82, 104, 77, 106, 107, 116, 89, 106, 65, 48, 78, 83, 49, 104, 78, 87, 69, 122, 79, 84, 99, 51, 77, 106, 86, 104, 90, 71, 89, 105, 88, 83, 119, 105, 89, 88, 86, 48, 97, 70, 57, 48, 97, 87, 49, 108, 73, 106, 111, 120, 78, 122, 81, 119, 78, 106, 103, 50, 78, 84, 85, 119, 76, 67, 74, 108, 98, 87, 70, 112, 98, 67, 73, 54, 73, 109, 53, 112, 89, 50, 116, 65, 97, 87, 53, 115, 76, 109, 108, 118, 73, 105, 119, 105, 90, 87, 49, 104, 97, 87, 120, 102, 100, 109, 86, 121, 97, 87, 90, 112, 90, 87, 81, 105, 79, 105, 74, 48, 99, 110, 86, 108, 73, 105, 119, 105, 90, 88, 104, 119, 73, 106, 111, 120, 78, 122, 81, 119, 78, 106, 107, 119, 77, 84, 85, 119, 76, 67, 74, 109, 89, 87, 49, 112, 98, 72, 108, 102, 98, 109, 70, 116, 90, 83, 73, 54, 73, 108, 78, 104, 98, 110, 82, 112, 89, 87, 100, 118, 73, 105, 119, 105, 90, 50, 108, 50, 90, 87, 53, 102, 98, 109, 70, 116, 90, 83, 73, 54, 73, 107, 53, 112, 89, 50, 104, 118, 98, 71, 70, 122, 73, 105, 119, 105, 90, 51, 74, 118, 100, 88, 66, 122, 73, 106, 111, 105, 83, 107, 78, 102, 85, 108, 86, 84, 86, 69, 82, 70, 85, 48, 116, 102, 81, 85, 82, 78, 83, 85, 52, 105, 76, 67, 74, 112, 89, 88, 81, 105, 79, 106, 69, 51, 78, 68, 65, 50, 79, 68, 89, 49, 78, 84, 65, 115, 73, 109, 108, 122, 99, 121, 73, 54, 73, 109, 104, 48, 100, 72, 66, 122, 79, 105, 56, 118, 98, 50, 70, 49, 100, 71, 103, 117, 97, 87, 81, 117, 97, 110, 86, 116, 99, 71, 78, 115, 98, 51, 86, 107, 76, 109, 78, 118, 98, 83, 56, 105, 76, 67, 74, 113, 89, 49, 57, 118, 99, 109, 99, 105, 79, 105, 73, 50, 77, 50, 81, 120, 89, 122, 107, 50, 78, 106, 73, 120, 78, 109, 85, 120, 89, 122, 82, 105, 77, 109, 69, 49, 79, 71, 90, 108, 79, 71, 69, 105, 76, 67, 74, 113, 100, 71, 107, 105, 79, 105, 74, 106, 79, 68, 100, 106, 90, 84, 89, 122, 79, 67, 48, 119, 89, 87, 73, 48, 76, 84, 82, 106, 78, 68, 85, 116, 79, 71, 69, 48, 89, 121, 49, 106, 77, 68, 82, 105, 77, 87, 82, 108, 77, 84, 107, 48, 90, 87, 89, 105, 76, 67, 74, 116, 97, 87, 82, 107, 98, 71, 86, 102, 98, 109, 70, 116, 90, 83, 73, 54, 73, 105, 73, 115, 73, 109, 53, 104, 98, 87, 85, 105, 79, 105, 74, 79, 97, 87, 78, 111, 98, 50, 120, 104, 99, 121, 66, 84, 89, 87, 53, 48, 97, 87, 70, 110, 98, 121, 73, 115, 73, 109, 53, 118, 98, 109, 78, 108, 73, 106, 111, 105, 86, 109, 112, 76, 85, 50, 82, 68, 82, 85, 120, 75, 101, 85, 74, 73, 90, 87, 120, 119, 99, 108, 57, 52, 97, 109, 70, 112, 81, 83, 73, 115, 73, 110, 66, 121, 90, 87, 90, 108, 99, 110, 74, 108, 90, 70, 57, 49, 99, 50, 86, 121, 98, 109, 70, 116, 90, 83, 73, 54, 73, 109, 53, 112, 89, 50, 115, 105, 76, 67, 74, 121, 89, 88, 81, 105, 79, 106, 69, 51, 78, 68, 65, 50, 79, 68, 89, 49, 78, 68, 107, 115, 73, 110, 78, 112, 90, 67, 73, 54, 73, 109, 86, 104, 90, 68, 100, 105, 90, 106, 78, 106, 76, 84, 81, 49, 78, 68, 107, 116, 78, 68, 65, 122, 89, 83, 48, 52, 78, 50, 69, 49, 76, 84, 85, 119, 77, 122, 70, 109, 90, 84, 99, 52, 78, 71, 74, 106, 79, 83, 73, 115, 73, 110, 78, 49, 89, 105, 73, 54, 73, 106, 89, 122, 90, 68, 70, 106, 90, 71, 74, 106, 90, 106, 69, 120, 77, 68, 89, 53, 77, 68, 90, 106, 78, 106, 65, 120, 78, 122, 103, 119, 90, 67, 74, 57, 46, 105, 70, 69, 51, 105, 98, 86, 122, 105, 49, 101, 117, 65, 75, 55, 97, 70, 108, 56, 85, 109, 85, 77, 48, 105, 110, 109, 75, 97, 89, 72, 67, 50, 52, 73, 79, 116, 70, 122, 65, 89, 117, 79, 79, 54, 107, 79, 68, 114, 113, 77, 113, 95, 95, 84, 82, 90, 82, 110, 76, 105, 84, 115, 78, 72, 86, 115, 76, 65, 108, 109, 66, 80, 107, 104, 110, 45, 108, 120, 77, 107, 101, 108, 55, 115, 65, 72, 57, 68, 116, 115, 110, 51, 89, 97, 84, 104, 54, 121, 48, 114, 78, 51, 89, 106, 97, 108, 65, 117, 67, 117, 50, 106, 116, 116, 50, 113, 48, 57, 104, 77, 97, 106, 121, 86, 113, 45, 76, 51, 111, 75, 122, 77, 48, 86, 69, 67, 86, 85, 104, 121, 118, 108, 54, 49, 74, 75, 100, 53, 53, 88, 112, 98, 88, 54, 68, 65, 98, 119, 103, 70, 74, 85, 87, 72, 82, 100, 99, 72, 83, 84, 51, 83, 101, 45, 113, 48, 104, 121, 76, 120, 85, 48, 84, 49, 101, 101, 73, 118, 82, 77, 116, 70, 112, 110, 105, 87, 97, 109, 73, 87, 98, 101, 115, 80, 49, 72, 51, 113, 76, 101, 106, 74, 88, 100, 106, 55, 110, 104, 119, 106, 110, 100, 72, 48, 78, 90, 75, 50, 117, 45, 121, 101, 105, 102, 79, 82, 56, 75, 68, 66, 75, 84, 70, 110, 66, 48, 65, 84, 45, 67, 99, 55, 77, 102, 100, 48, 105, 112, 75, 120, 76, 121, 88, 53, 110, 52, 72, 101, 73, 54, 66, 106, 77, 122, 65, 120, 107, 54, 57, 51, 66, 67, 118, 67, 75, 70, 67, 51, 80, 79, 82, 114, 116, 73, 80, 88, 97, 97, 78, 79, 102, 52, 113, 45, 104, 90, 101, 122, 48, 75, 115, 57, 80, 88, 115, 86, 102, 95, 90, 110, 82, 102, 50, 74, 53, 56, 112, 119, 122, 69, 83, 55, 74, 83, 116, 53, 74, 81, 72, 116, 81, 57, 113, 113, 68, 104, 100, 72, 55, 55, 118, 98, 53, 69, 80, 77, 79, 118, 83, 72, 109, 45, 49, 66, 100, 117, 65, 108, 117, 120, 111, 57, 84, 51, 84, 70, 45, 49, 113, 122, 73, 76, 84, 71, 113, 119, 88, 69, 116, 51, 48, 68, 86, 67, 68, 69, 69, 108, 54, 55, 50, 82, 107, 108, 76, 108, 122, 97, 88, 117, 50, 114, 72, 122, 51, 55, 112, 49, 65, 52, 75, 68, 114, 67, 70, 115, 103, 48, 121, 111, 79, 49, 68, 113, 70, 116, 118, 90, 120, 106, 48, 104, 56, 122, 72, 74, 86, 97, 74, 79, 50, 73, 84, 82, 52, 57, 113, 51, 49, 99, 120, 65, 114, 69, 76, 57, 74, 54, 108, 51, 89, 112, 67, 72, 107, 120, 104, 71, 54, 106, 112, 80, 78, 116, 110, 101, 77, 104, 109, 99, 82, 50, 69, 68, 52, 117, 120, 98, 102, 56, 79, 108, 49, 122, 104, 82, 114, 48, 70, 54, 103, 112, 48, 89, 55, 90, 95, 75, 109, 45, 69, 65, 105, 100, 110, 119, 53, 122, 72, 110, 85, 86, 119, 74, 119, 103, 48, 79, 98, 115, 99, 104, 71, 100, 50, 73, 116, 54, 121, 106, 78, 115, 81, 121, 82, 115, 89, 83, 97, 109, 111, 113, 87, 56, 108, 56, 66, 55, 55, 89, 84, 108, 80, 97, 97, 98, 73, 112, 88, 101, 70, 56, 55, 85, 89, 95, 88, 56, 71, 121, 83, 68, 120, 122, 52, 75, 117, 49, 67, 82, 55, 65, 121, 55, 50, 77, 68, 90, 85, 69, 108, 113, 49, 83, 116, 121, 85, 108, 49, 79, 122, 70, 80, 71, 53, 105, 55, 118, 83, 119, 104, 121, 67, 103, 118, 48, 95, 76, 72, 45, 79, 80, 82, 66, 120, 112, 51, 52, 67, 89, 73, 112, 111, 57, 89, 88, 114, 108, 55, 90, 101, 49, 99, 69, 107, 49, 55, 57, 53, 77, 121, 49, 83, 65, 113, 108, 75, 75, 121, 90, 51, 85, 34, 44, 34, 115, 99, 111, 112, 101, 34, 58, 34, 111, 112, 101, 110, 105, 100, 32, 101, 109, 97, 105, 108, 32, 112, 114, 111, 102, 105, 108, 101, 32, 111, 102, 102, 108, 105, 110, 101, 95, 97, 99, 99, 101, 115, 115, 34, 44, 34, 116, 111, 107, 101, 110, 95, 116, 121, 112, 101, 34, 58, 34, 98, 101, 97, 114, 101, 114, 34, 125])

How to Reproduce

• Configure an SSO application in Jumpcloud with the following configuration:
  • Client Authentication Type: Client Secret Basic
  • Redirect URIs: https://url-to-rustdesk/api/oidc/callback
  • Login URL: https://url-to-rustdesk-login/
  • Attribute Mapping:
    • Standard Scopes: Email and Profile
    • Group Attributes: optional
  • User Consent: automatically consent
• Configure an OIDC provider in the Rustdesk console with the following:
  • Name: Jumpcloud
  • Client ID: client ID as provided from Jumpcloud console
  • Client Secret: client secret as provided from Jumpcloud console
  • Timeout: 3600
  • Custom Certificate: null
  • Issuer: https://oauth.id.jumpcloud.com/
  • Authorization Endpoint: https://oauth.id.jumpcloud.com/oauth2/auth
  • Token Endpoint: https://oauth.id.jumpcloud.com/oauth2/token
  • Userinfo Endpoint: https://oauth.id.jumpcloud.com/oauth2/userinfo
  • JWKS Endpoint: https://oauth.id.jumpcloud.com/.well-known/jwks.json
  • Enable PKCE: true
• Attempt to login using either an SP or IdP-initiated login flow

Expected Behavior

Users are able to login and see at least their profile populated.

Operating system(s) on local (controlling) side and remote (controlled) side

Web console - Docker on Linux

RustDesk Version(s) on local (controlling) side and remote (controlled) side

N/A - issue with web console

Screenshots

Additional Context

No response

Start in src/oidc.rs around line 743 and reproduce the JumpCloud OIDC login flow using the token endpoint configuration in the issue. Trace the token response parsing failure involving a string "true" where a boolean is expected; done means users can complete login and see at least their profile populated.