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fix: read admin role from a configurable access-token claim path #77

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Merged
kennhung merged 4 commits into from
Sep 9, 2026
Merged

fix: read admin role from a configurable access-token claim path #77

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ce2806a
fix: check client role in addition to realm role for admin
kennhung Sep 9, 2026
a48f0e1
fix: only check client role, drop realm_access lookup
kennhung Sep 9, 2026
a8489f6
fix: revert role source to profile.roles, restore strict refresh logo…
kennhung Sep 9, 2026
1f834d9
fix: revert to access-token role source, make roles claim path config…
kennhung Sep 9, 2026
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16 changes: 15 additions & 1 deletion src/auth.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -30,10 +30,24 @@ declare module "next-auth/jwt" {
}
}

// Dot-separated path into the access token payload where the roles array lives, e.g.
// "realm_access.roles" for a realm role, or "resource_access.<client-id>.roles" for a client role.
const ROLES_CLAIM_PATH = process.env.AUTH_KEYCLOAK_ROLES_CLAIM || "realm_access.roles";

function getClaimByPath(payload: unknown, path: string): unknown {
return path.split(".").reduce<unknown>((value, key) => {
if (value && typeof value === "object" && key in value) {
return (value as Record<string, unknown>)[key];
}
return undefined;
}, payload);
}

function getRolesFromAccessToken(accessToken: string): string[] {
const payload = JSON.parse(Buffer.from(accessToken.split(".")[1], "base64url").toString());

return Array.isArray(payload?.realm_access?.roles) ? payload.realm_access.roles : [];
const roles = getClaimByPath(payload, ROLES_CLAIM_PATH);
return Array.isArray(roles) ? roles : [];
}

function getNameFromProfile(profile: Profile): string | undefined {
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