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|
package middleware
import (
"net/http"
"net/http/httptest"
"testing"
"time"
)
func TestSecurityHeaders_Debug(t *testing.T) {
handler := SecurityHeaders(true)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
}))
req := httptest.NewRequest("GET", "/", nil)
rec := httptest.NewRecorder()
handler.ServeHTTP(rec, req)
// Check common security headers
if rec.Header().Get("X-Content-Type-Options") != "nosniff" {
t.Error("Expected X-Content-Type-Options header")
}
if rec.Header().Get("X-Frame-Options") != "DENY" {
t.Error("Expected X-Frame-Options header")
}
if rec.Header().Get("X-XSS-Protection") != "1; mode=block" {
t.Error("Expected X-XSS-Protection header")
}
// HSTS should NOT be set in debug mode
if rec.Header().Get("Strict-Transport-Security") != "" {
t.Error("HSTS should not be set in debug mode")
}
}
func TestSecurityHeaders_Production(t *testing.T) {
handler := SecurityHeaders(false)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
}))
req := httptest.NewRequest("GET", "/", nil)
rec := httptest.NewRecorder()
handler.ServeHTTP(rec, req)
// HSTS should be set in production
if rec.Header().Get("Strict-Transport-Security") == "" {
t.Error("HSTS should be set in production mode")
}
// CSP should be set
if rec.Header().Get("Content-Security-Policy") == "" {
t.Error("Expected Content-Security-Policy header")
}
}
func TestRateLimiter_Allow(t *testing.T) {
rl := &RateLimiter{
requests: make(map[string][]time.Time),
limit: 3,
window: time.Minute,
}
ip := "192.168.1.1"
// First 3 requests should be allowed
for i := 0; i < 3; i++ {
if !rl.Allow(ip) {
t.Errorf("Request %d should be allowed", i+1)
}
}
// 4th request should be denied
if rl.Allow(ip) {
t.Error("4th request should be denied")
}
}
func TestRateLimiter_WindowExpiry(t *testing.T) {
rl := &RateLimiter{
requests: make(map[string][]time.Time),
limit: 2,
window: 50 * time.Millisecond,
}
ip := "192.168.1.1"
// Use up the limit
rl.Allow(ip)
rl.Allow(ip)
// Should be denied
if rl.Allow(ip) {
t.Error("Should be denied when limit reached")
}
// Wait for window to expire
time.Sleep(60 * time.Millisecond)
// Should be allowed again
if !rl.Allow(ip) {
t.Error("Should be allowed after window expires")
}
}
func TestRateLimiter_Limit_Middleware(t *testing.T) {
rl := &RateLimiter{
requests: make(map[string][]time.Time),
limit: 1,
window: time.Minute,
}
handler := rl.Limit(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
}))
// First request should pass
req1 := httptest.NewRequest("GET", "/", nil)
req1.RemoteAddr = "10.0.0.1:12345"
rec1 := httptest.NewRecorder()
handler.ServeHTTP(rec1, req1)
if rec1.Code != http.StatusOK {
t.Errorf("First request should return 200, got %d", rec1.Code)
}
// Second request should be rate limited
req2 := httptest.NewRequest("GET", "/", nil)
req2.RemoteAddr = "10.0.0.1:12345"
rec2 := httptest.NewRecorder()
handler.ServeHTTP(rec2, req2)
if rec2.Code != http.StatusTooManyRequests {
t.Errorf("Second request should return 429, got %d", rec2.Code)
}
}
func TestNewRateLimiter(t *testing.T) {
rl := NewRateLimiter(10, 100*time.Millisecond)
if rl == nil {
t.Fatal("NewRateLimiter returned nil")
}
if rl.limit != 10 {
t.Errorf("Expected limit 10, got %d", rl.limit)
}
if rl.window != 100*time.Millisecond {
t.Errorf("Expected window 100ms, got %v", rl.window)
}
// Let cleanup run once
time.Sleep(150 * time.Millisecond)
}
func TestGetIP(t *testing.T) {
tests := []struct {
name string
xff string
xri string
remoteAddr string
expected string
}{
{
name: "X-Forwarded-For takes priority",
xff: "1.2.3.4",
xri: "5.6.7.8",
remoteAddr: "9.10.11.12",
expected: "1.2.3.4",
},
{
name: "X-Real-IP when no XFF",
xff: "",
xri: "5.6.7.8",
remoteAddr: "9.10.11.12",
expected: "5.6.7.8",
},
{
name: "RemoteAddr as fallback",
xff: "",
xri: "",
remoteAddr: "9.10.11.12:54321",
expected: "9.10.11.12:54321",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
req := httptest.NewRequest("GET", "/", nil)
req.RemoteAddr = tc.remoteAddr
if tc.xff != "" {
req.Header.Set("X-Forwarded-For", tc.xff)
}
if tc.xri != "" {
req.Header.Set("X-Real-IP", tc.xri)
}
ip := getIP(req)
if ip != tc.expected {
t.Errorf("Expected IP %s, got %s", tc.expected, ip)
}
})
}
}
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