feat: forward authenticated user identity to upstream via headers#135
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feat: forward authenticated user identity to upstream via headers#135
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Add --header-mapping flag to inject OIDC/Google/GitHub userinfo attributes into upstream request headers. Userinfo is embedded as JWT custom claims and extracted in the proxy using JSON pointers. Also fixes JWT subject claim from hardcoded "user" to the actual authenticated user's identity. Closes #130
Integrate GrantAudience, trailing-slash normalization, healthz endpoint, and state-generation changes from main while preserving header-mapping feature additions.
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Summary
--header-mappingflag (HEADER_MAPPINGenv var) to inject authenticated user identity into upstream request headers by mapping userinfo fields via JSON pointers (e.g.,/email:X-Forwarded-Email)"user"to the actual authenticated user's identityType of Change
Related Issues
Closes #130