Merge pull request #3 from 2manymws/country-code

To make existing country codes available

base_limiter_test.go

@@ -1,26 +1,10 @@
 package rlutils
 
 import (
-	"net/http"
 	"net/http/httptest"
 	"testing"
-	"time"
-
-	"github.com/2manymws/rl"
 )
 
-// Helper function to generate a request context suitable for testing.
-func createTestContext(limit int, windowLen time.Duration, next http.Handler) *rl.Context {
-	return &rl.Context{
-		StatusCode: http.StatusTooManyRequests,
-		Err:        rl.ErrRateLimitExceeded,
-		// Limiter, RequestLimit, and other fields would be initialized here as needed
-		Next:               next,
-		RequestLimit:       limit,
-		RateLimitRemaining: 0,
-		WindowLen:          windowLen,
-	}
-}
 func TestBaseLimiter_isTargetExtensions(t *testing.T) {
 	tests := []struct {
 		name             string

country_limiter.go

@@ -19,6 +19,9 @@ type CountryLimiter struct {
 	skipCountries map[string]struct{}
 	BaseLimiter
 }
+type key int
+
+const ContextCountryKey key = iota
 
 // 国別のリクエスト数を制限する
 // 制限単位はIPアドレス
@@ -71,9 +74,15 @@ func (l *CountryLimiter) Rule(r *http.Request) (*rl.Rule, error) {
 	}
 
 	remoteAddr := strings.Split(r.RemoteAddr, ":")[0]
-	country, err := l.country(remoteAddr)
-	if err != nil {
-		return nil, err
+	country := ""
+	if r.Context().Value(ContextCountryKey) != nil {
+		country = r.Context().Value(ContextCountryKey).(string)
+	} else {
+		c, err := l.country(remoteAddr)
+		if err != nil {
+			return nil, err
+		}
+		country = c
 	}
 
 	limit := &rl.Rule{

country_limiter_test.go

@@ -1,6 +1,7 @@
 package rlutils
 
 import (
+	"context"
 	"net/http"
 	"path/filepath"
 	"strings"
@@ -117,3 +118,53 @@ func TestCountryLimiter(t *testing.T) {
 		})
 	}
 }
+
+func TestCountryLimiterWithContext(t *testing.T) {
+	abspath, _ := filepath.Abs("./testdata/GeoIP2-Country-Test.mmdb")
+	reqLimit := 10
+
+	// Define your test cases
+	testCases := []struct {
+		name            string
+		request         *http.Request
+		countries       []string
+		expectedCountry string
+		shouldLimit     bool
+	}{
+		{
+			name:        "Valid IP from United States With Port",
+			request:     testHTTPRequest("50.114.0.1:1234"),
+			countries:   []string{"US"},
+			shouldLimit: true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Run the country function to get the ISO country code
+			cl, err := NewCountryLimiter(
+				abspath,
+				[]string{"US"},
+				[]string{},
+				reqLimit,
+				1*time.Hour,
+				nil,
+				nil,
+			)
+			if err != nil {
+				t.Fatal(err)
+			}
+			ctx := tc.request.Context()
+			ctx = context.WithValue(ctx, ContextCountryKey, "US")
+			tc.request = tc.request.WithContext(ctx)
+			rule, _ := cl.Rule(tc.request)
+			if tc.shouldLimit && (rule == nil || rule.ReqLimit != reqLimit) {
+				t.Errorf("Expected shouldLimit rule with limit %d, but got %+v", reqLimit, rule)
+			}
+			if !tc.shouldLimit && (rule == nil || rule.ReqLimit != -1) {
+				t.Errorf("Expected disshouldLimit rule with no limiting, but got %+v", rule)
+			}
+
+		})
+	}
+}

coverage.out

@@ -1,41 +1,44 @@
 mode: count
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+github.com/2manymws/rlutils/base_limiter.go:26.15,35.2 2 20
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