Files
decypharr/pkg/web/middlewares.go

87 lines
2.3 KiB
Go

package web
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/sirrobot01/decypharr/internal/config"
)
func (wb *Web) setupMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
cfg := config.Get()
needsAuth := cfg.NeedsSetup()
if needsAuth != nil && r.URL.Path != "/config" && r.URL.Path != "/api/config" {
http.Redirect(w, r, fmt.Sprintf("/config?inco=%s", needsAuth.Error()), http.StatusSeeOther)
return
}
// strip inco from URL
if inco := r.URL.Query().Get("inco"); inco != "" && needsAuth == nil && r.URL.Path == "/config" {
// redirect to the same URL without the inco parameter
http.Redirect(w, r, "/config", http.StatusSeeOther)
}
next.ServeHTTP(w, r)
})
}
func (wb *Web) authMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Check if setup is needed
cfg := config.Get()
if !cfg.UseAuth {
next.ServeHTTP(w, r)
return
}
isAPI := wb.isAPIRequest(r)
if cfg.NeedsAuth() {
if isAPI {
wb.sendJSONError(w, "Authentication setup required", http.StatusUnauthorized)
} else {
http.Redirect(w, r, "/register", http.StatusSeeOther)
}
return
}
// Check for API token first
if wb.isValidAPIToken(r) {
next.ServeHTTP(w, r)
return
}
// Fall back to session authentication
session, _ := wb.cookie.Get(r, "auth-session")
auth, ok := session.Values["authenticated"].(bool)
if !ok || !auth {
if isAPI {
wb.sendJSONError(w, "Authentication required. Please provide a valid API token in the Authorization header (Bearer <token>) or authenticate via session cookies.", http.StatusUnauthorized)
} else {
http.Redirect(w, r, "/login", http.StatusSeeOther)
}
return
}
next.ServeHTTP(w, r)
})
}
// isAPIRequest checks if the request is for an API endpoint
func (wb *Web) isAPIRequest(r *http.Request) bool {
return strings.HasPrefix(r.URL.Path, "/api/")
}
// sendJSONError sends a JSON error response
func (wb *Web) sendJSONError(w http.ResponseWriter, message string, statusCode int) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(statusCode)
json.NewEncoder(w).Encode(map[string]interface{}{
"error": message,
"status": statusCode,
})
}