func()

in proxy/handler/oauth2/oauth2_handler.go [50:85]

• 33 lines of code
• 10 McCabe index (conditional complexity)

func (oa *Handler) Handle(chain *handler.Chain, inv *invocation.Invocation, cb invocation.ResponseCallBack) {
	if auth != nil && auth.GrantType == "authorization_code" {
		if req, ok := inv.Args.(*http.Request); ok {
			state := req.FormValue("state")
			if state != Random && state != "" {
				WriteBackErr(ErrInvalidState, http.StatusUnauthorized, cb)
				return
			}

			code := req.FormValue("code")
			if code == "" {
				WriteBackErr(ErrInvalidCode, http.StatusUnauthorized, cb)
				return
			}

			accessToken, err := getToken(code, cb)
			if err != nil {
				openlog.Error("authorization error: " + err.Error())
				WriteBackErr(ErrInvalidToken, http.StatusUnauthorized, cb)
				return
			}

			if auth.Authenticate != nil {
				err = auth.Authenticate(accessToken, req)
				if err != nil {
					openlog.Error("authentication error: " + err.Error())
					WriteBackErr(ErrInvalidAuth, http.StatusUnauthorized, cb)
					return
				}
			}
		}
	}
	chain.Next(inv, func(r *invocation.Response) {
		cb(r)
	})
}