feat: split oauth endpoints into files

internal/oauth/openid.go

@@ -0,0 +1,31 @@
+package oauth
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"gitea.local/admin/hspguard/internal/web"
+)
+
+func (h *OAuthHandler) OpenIdConfiguration(w http.ResponseWriter, r *http.Request) {
+	type Response struct {
+		TokenEndpoint         string `json:"token_endpoint"`
+		AuthorizationEndpoint string `json:"authorization_endpoint"`
+		JwksURI               string `json:"jwks_uri"`
+		Issuer                string `json:"issuer"`
+		EndSessionEndpoint    string `json:"end_session_endpoint"`
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(Response{
+		TokenEndpoint:         h.cfg.Jwt.Issuer + "/api/v1/oauth/token",
+		AuthorizationEndpoint: h.cfg.Jwt.Issuer + "/auth",
+		JwksURI:               h.cfg.Jwt.Issuer + "/.well-known/jwks.json",
+		Issuer:                h.cfg.Jwt.Issuer,
+		EndSessionEndpoint:    h.cfg.Jwt.Issuer + "/api/v1/oauth/logout",
+	}); err != nil {
+		web.Error(w, "failed to encode response", http.StatusInternalServerError)
+	}
+}