feat: initial commit

internal/http/handler/webui/auth/handler.go

@@ -0,0 +1,53 @@
+package auth
+
+import (
+	"context"
+	"net/http"
+
+	"forge.cadoles.com/wpetit/kouiz/internal/http/handler/webui/auth/component"
+	"github.com/gorilla/sessions"
+)
+
+type Provider = component.ProviderVModel
+
+type Handler struct {
+	mux          *http.ServeMux
+	sessionStore sessions.Store
+	sessionName  string
+	providers    []Provider
+}
+
+// ServeHTTP implements http.Handler.
+func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	h.mux.ServeHTTP(w, r)
+}
+
+func NewHandler(sessionStore sessions.Store, funcs ...OptionFunc) *Handler {
+	opts := NewOptions(funcs...)
+	h := &Handler{
+		mux:          http.NewServeMux(),
+		sessionStore: sessionStore,
+		sessionName:  opts.SessionName,
+		providers:    opts.Providers,
+	}
+
+	h.mux.HandleFunc("GET /login", h.getLoginPage)
+	h.mux.Handle("GET /providers/{provider}", withContextProvider(http.HandlerFunc(h.handleProvider)))
+	h.mux.Handle("GET /providers/{provider}/callback", withContextProvider(http.HandlerFunc(h.handleProviderCallback)))
+	h.mux.HandleFunc("GET /logout", h.handleLogout)
+	h.mux.Handle("GET /providers/{provider}/logout", withContextProvider(http.HandlerFunc(h.handleProviderLogout)))
+
+	return h
+}
+
+var _ http.Handler = &Handler{}
+
+func withContextProvider(h http.Handler) http.Handler {
+	fn := func(w http.ResponseWriter, r *http.Request) {
+		provider := r.PathValue("provider")
+		r = r.WithContext(context.WithValue(r.Context(), "provider", provider))
+		h.ServeHTTP(w, r)
+	}
+
+	return http.HandlerFunc(fn)
+}