Add external authorization via http request #830
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This is similar to Envoys external authorization[0], and can be used for example in combination with Ory Oathkeeper. [0] https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/http/ext_authz/v3/ext_authz.proto
nathanejohnson
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👍 for this PR! Maybe a future refinement would be to use service-discovery to discover the endpoint by service name? But I'd take this as is now to get the ball rolling, have the same use-case in mind. |
nathanejohnson
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Nov 17, 2022
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| func (b *external) Authorized(request *http.Request, response http.ResponseWriter) AuthDecision { | ||
| client := &http.Client{CheckRedirect: func(req *http.Request, via []*http.Request) error { return http.ErrUseLastResponse }} |
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This client should specify a timeout at least, and possibly a transport too depending on whether tls configurations would need to be overridden. Also, it would be much better to store this client inside the external struct instead of recreating it each time.
| log.Println("[ERROR] External request error:", err.Error()) | ||
| return unauthorized() | ||
| } | ||
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resp.Body is never drained or closed. if err is nil, body needs to be dealt with.
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| if strings.HasSuffix(a.External.Endpoint, "/") { |
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Curious to the reasoning for this restriction?
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This is similar to Envoys external authorization, and can be used for example in combination with Ory Oathkeeper.