mirror of
https://github.com/Dvorinka/MyClubServer.git
synced 2026-06-03 18:22:57 +00:00
Tomas Dvorak
77 lines
2.7 KiB
Go
77 lines
2.7 KiB
Go
package middleware
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import (
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"fotbal-club/internal/config"
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"github.com/gin-gonic/gin"
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)
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// SecurityHeaders adds comprehensive security headers to all responses
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func SecurityHeaders() gin.HandlerFunc {
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return func(c *gin.Context) {
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// Prevent MIME type sniffing
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c.Header("X-Content-Type-Options", "nosniff")
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// Prevent clickjacking (allow same-origin for PDF previews)
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c.Header("X-Frame-Options", "SAMEORIGIN")
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// Referrer policy
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c.Header("Referrer-Policy", "strict-origin-when-cross-origin")
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// XSS Protection (legacy, but still useful)
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c.Header("X-XSS-Protection", "1; mode=block")
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// Permissions Policy (formerly Feature-Policy)
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c.Header("Permissions-Policy", "geolocation=(), microphone=(), camera=(), payment=()")
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// HSTS for HTTPS connections
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if c.Request.TLS != nil || c.GetHeader("X-Forwarded-Proto") == "https" {
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c.Header("Strict-Transport-Security", "max-age=63072000; includeSubDomains; preload")
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}
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// Strict Content-Security-Policy
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csp := buildCSP(config.AppConfig.AppEnv == "production")
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c.Header("Content-Security-Policy", csp)
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// Additional security headers
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c.Header("X-Permitted-Cross-Domain-Policies", "none")
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c.Header("Cross-Origin-Embedder-Policy", "require-corp")
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c.Header("Cross-Origin-Opener-Policy", "same-origin")
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// Allow assets (e.g., /uploads) to be embedded from different origin (frontend vs backend)
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c.Header("Cross-Origin-Resource-Policy", "cross-origin")
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c.Next()
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}
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}
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// buildCSP creates a strict Content-Security-Policy
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func buildCSP(production bool) string {
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if production {
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// Strict production CSP
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return "default-src 'self'; " +
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"script-src 'self' https://fonts.googleapis.com https://umami.tdvorak.dev; " +
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"style-src 'self' https://fonts.googleapis.com; " +
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"font-src 'self' https://fonts.gstatic.com data:; " +
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"img-src 'self' data: https: blob:; " +
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"connect-src 'self' https://umami.tdvorak.dev https://zonerama.tdvorak.dev; " +
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"frame-src 'self' https://www.youtube.com https://www.youtube-nocookie.com; " +
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"object-src 'none'; " +
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"base-uri 'self'; " +
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"form-action 'self'; " +
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"frame-ancestors 'self'; " +
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"upgrade-insecure-requests;"
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}
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// Development CSP - slightly relaxed for local development
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return "default-src 'self'; " +
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"script-src 'self' 'unsafe-eval' 'unsafe-inline' https://fonts.googleapis.com https://umami.tdvorak.dev; " +
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"style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; " +
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"font-src 'self' https://fonts.gstatic.com data:; " +
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"img-src 'self' data: https: http: blob:; " +
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"connect-src 'self' https: http: ws: wss:; " +
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"frame-src 'self' https://www.youtube.com https://www.youtube-nocookie.com; " +
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"object-src 'none'; " +
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"base-uri 'self'; " +
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"form-action 'self'; " +
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"frame-ancestors 'self';"
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}
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