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server: fix error reporting and logic for /keys handler

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restores proper error reporting to include the host dialed, and
fixes the tautological comparison `jwks == nil` in the recovery path
to properly refetch the server config and try again as intended
This commit is contained in:
Tiziano Müller 2024-05-24 16:34:38 +02:00
parent e929fac09e
commit b304361ce9
Failed to extract signature
1 changed files with 29 additions and 20 deletions
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49
internal/server/server.go
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@ -141,38 +141,47 @@ func (s *Server) StartLogin(clients []oauth.Client, params ServerParams) error {
p = params.AuthProvider p = params.AuthProvider
jwks []byte jwks []byte
) )
// try and get the JWKS from param first
if p.Endpoints.JwksUri != "" { fetchAndMarshal := func() (err error) {
err := p.FetchJwks() err = p.FetchJwks()
if err != nil { if err != nil {
fmt.Printf("failed to fetch keys using JWKS url...trying to fetch config and try again...\n") fmt.Printf("failed to fetch keys: %v\n", err)
return
} }
jwks, err = json.Marshal(p.KeySet) jwks, err = json.Marshal(p.KeySet)
if err != nil { if err != nil {
fmt.Printf("failed to marshal JWKS: %v\n", err) fmt.Printf("failed to marshal JWKS: %v\n", err)
} }
} else if p.Endpoints.Config != "" && jwks == nil { return
// otherwise, try and fetch the whole config and try again }
err := p.FetchServerConfig()
if err != nil { // try and get the JWKS from param first
fmt.Printf("failed to fetch server config: %v\n", err) if p.Endpoints.JwksUri != "" {
http.Redirect(w, r, "/error", http.StatusInternalServerError) if err := fetchAndMarshal(); err != nil {
return w.Write(jwks)
}
err = p.FetchJwks()
if err != nil {
fmt.Printf("failed to fetch JWKS after fetching server config: %v\n", err)
http.Redirect(w, r, "/error", http.StatusInternalServerError)
return return
} }
} }
// forward the JWKS from the authorization server // otherwise or if fetching the JWKS failed, try and fetch the whole config first and try again
if jwks == nil { if p.Endpoints.Config != "" {
fmt.Printf("no JWKS was fetched from authorization server\n") if err := p.FetchServerConfig(); err != nil {
http.Redirect(w, r, "/error", http.StatusInternalServerError) fmt.Printf("failed to fetch server config: %v\n", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
} else {
fmt.Printf("getting JWKS from param failed and endpoints config unavailable\n")
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return return
} }
if err := fetchAndMarshal(); err != nil {
fmt.Printf("failed to fetch and marshal JWKS after config update: %v\n", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
w.Write(jwks) w.Write(jwks)
}) })
r.HandleFunc("/token", func(w http.ResponseWriter, r *http.Request) { r.HandleFunc("/token", func(w http.ResponseWriter, r *http.Request) {