polycule-connect/polyculeconnect/internal/middlewares/test.go
Melora Hugues 64e48a5689 Add basic way to get backend from query (#48)
Because polyculeconnect is a OIDC proxy, we need to know which auth
backend to use. This is provided using a query param or a form, so we
need to get it from our own middleware.

This commit adds the following elements:
 - basic DB storage for the backends
 - support for DB migrations and a first test migration (not definitive)
 - middleware to get the backend from the request and put it in the
   context
 - test that the backend exists in the auth flow
2024-08-16 11:29:19 +02:00

40 lines
932 B
Go

package middlewares
import (
"context"
"net/http"
)
const (
backendNameQueryParam = "connector_id"
backendCtxKeyName = "backendName"
)
type BackendFromRequestMiddleware struct {
h http.Handler
}
func (m *BackendFromRequestMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
// TODO: handle this better
w.WriteHeader(http.StatusBadRequest)
return
}
backendName := r.Form.Get(backendNameQueryParam)
// TODO this should be explicitly handled
if backendName == "" {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("no backend id provided"))
return
}
// TODO we should test that this backend actually exists here
ctx := context.WithValue(r.Context(), backendCtxKeyName, backendName)
m.h.ServeHTTP(w, r.WithContext(ctx))
}
func WithBackendFromRequestMiddleware(input http.Handler) http.Handler {
return &BackendFromRequestMiddleware{h: input}
}