7934afcf0d
- Add comprehensive root README with badges, architecture diagram, and setup guide - Update backend README with security middlewares and endpoint documentation - Update frontend README with design system and page structure - Update seeder-api README with generated data and credentials - Add internal module READMEs (middleware, handlers, components) - Document Clean Architecture layers and request flow - Add environment variables reference table
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package middleware
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import (
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"net/http"
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"os"
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"strings"
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)
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// CORSMiddleware handles Cross-Origin Resource Sharing
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// IMPORTANT: Configure CORS_ORIGINS env var in production
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func CORSMiddleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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origins := os.Getenv("CORS_ORIGINS")
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if origins == "" {
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origins = "http://localhost:3000"
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}
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origin := r.Header.Get("Origin")
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allowOrigin := ""
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// Check if origin is in allowed list
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for _, o := range strings.Split(origins, ",") {
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if strings.TrimSpace(o) == origin {
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allowOrigin = origin
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break
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}
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}
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if allowOrigin != "" {
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w.Header().Set("Access-Control-Allow-Origin", allowOrigin)
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}
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w.Header().Set("Access-Control-Allow-Credentials", "true")
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w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, PATCH, DELETE, OPTIONS")
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w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization, X-CSRF-Token")
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if r.Method == "OPTIONS" {
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w.WriteHeader(http.StatusOK)
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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