31 lines
943 B
Go
31 lines
943 B
Go
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package middleware
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import "net/http"
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// SecurityHeaders adds common security headers to responses
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func SecurityHeaders(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// Prevent clickjacking
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w.Header().Set("X-Frame-Options", "SAMEORIGIN")
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// Prevent MIME type sniffing
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w.Header().Set("X-Content-Type-Options", "nosniff")
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// XSS Protection (legacy but still useful)
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w.Header().Set("X-XSS-Protection", "1; mode=block")
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// Referrer policy
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w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
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// Content Security Policy (adjust as needed)
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w.Header().Set("Content-Security-Policy",
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"default-src 'self'; "+
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"script-src 'self' 'unsafe-inline' https://unpkg.com; "+
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"style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; "+
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"font-src 'self' https://fonts.gstatic.com; "+
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"connect-src 'self'")
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next.ServeHTTP(w, r)
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})
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}
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