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imagini/internal/api/middlewares.go
2021-02-04 15:31:07 -05:00

64 lines
1.4 KiB
Go

package api
import (
"context"
"net/http"
"reichard.io/imagini/graph/model"
)
type Middleware func(http.Handler) http.HandlerFunc
func multipleMiddleware(h http.HandlerFunc, m ...Middleware) http.HandlerFunc {
if len(m) < 1 {
return h
}
wrapped := h
for i := len(m) - 1; i >= 0; i-- {
wrapped = m[i](wrapped)
}
return wrapped
}
/**
* This is used for the graphQL endpoints that may require access to the
* Request and ResponseWriter variables. These are used to get / set cookies.
**/
func (api *API) contextMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
authContext := &model.AuthContext{
AuthResponse: &w,
AuthRequest: r,
}
// Add context
ctx := context.WithValue(r.Context(), "auth", authContext)
r = r.WithContext(ctx)
next.ServeHTTP(w, r)
})
}
/**
* This is used for non graphQL endpoints that require authentication.
**/
func (api *API) authMiddleware(next http.Handler) http.HandlerFunc {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Validate Tokens
accessToken, err := api.validateTokens(&w, r)
if err != nil {
w.WriteHeader(http.StatusUnauthorized)
return
}
// Create Context
authContext := &model.AuthContext{
AccessToken: &accessToken,
}
ctx := context.WithValue(r.Context(), "auth", authContext)
r = r.WithContext(ctx)
next.ServeHTTP(w, r)
})
}