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	`http.ServeFile/ServeContent` handles `If-xxx`, `Content-Length`, `Range` and `Etag` correctly After this PR, storage files (eg: avatar) could be responded with correct Content-Length.
		
			
				
	
	
		
			98 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2021 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package httpcache
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| 
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| import (
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| 	"net/http"
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| 	"net/http/httptest"
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| 	"strings"
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| 	"testing"
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| 
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| 	"github.com/stretchr/testify/assert"
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| )
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| 
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| func countFormalHeaders(h http.Header) (c int) {
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| 	for k := range h {
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| 		// ignore our headers for internal usage
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| 		if strings.HasPrefix(k, "X-Gitea-") {
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| 			continue
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| 		}
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| 		c++
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| 	}
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| 	return c
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| }
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| 
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| func TestHandleGenericETagCache(t *testing.T) {
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| 	etag := `"test"`
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| 
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| 	t.Run("No_If-None-Match", func(t *testing.T) {
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| 		req := &http.Request{Header: make(http.Header)}
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| 		w := httptest.NewRecorder()
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| 
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| 		handled := HandleGenericETagCache(req, w, etag)
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| 
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| 		assert.False(t, handled)
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| 		assert.Equal(t, 2, countFormalHeaders(w.Header()))
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| 		assert.Contains(t, w.Header(), "Cache-Control")
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| 		assert.Contains(t, w.Header(), "Etag")
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| 		assert.Equal(t, etag, w.Header().Get("Etag"))
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| 	})
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| 	t.Run("Wrong_If-None-Match", func(t *testing.T) {
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| 		req := &http.Request{Header: make(http.Header)}
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| 		w := httptest.NewRecorder()
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| 
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| 		req.Header.Set("If-None-Match", `"wrong etag"`)
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| 
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| 		handled := HandleGenericETagCache(req, w, etag)
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| 
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| 		assert.False(t, handled)
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| 		assert.Equal(t, 2, countFormalHeaders(w.Header()))
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| 		assert.Contains(t, w.Header(), "Cache-Control")
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| 		assert.Contains(t, w.Header(), "Etag")
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| 		assert.Equal(t, etag, w.Header().Get("Etag"))
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| 	})
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| 	t.Run("Correct_If-None-Match", func(t *testing.T) {
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| 		req := &http.Request{Header: make(http.Header)}
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| 		w := httptest.NewRecorder()
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| 
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| 		req.Header.Set("If-None-Match", etag)
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| 
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| 		handled := HandleGenericETagCache(req, w, etag)
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| 
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| 		assert.True(t, handled)
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| 		assert.Equal(t, 1, countFormalHeaders(w.Header()))
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| 		assert.Contains(t, w.Header(), "Etag")
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| 		assert.Equal(t, etag, w.Header().Get("Etag"))
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| 		assert.Equal(t, http.StatusNotModified, w.Code)
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| 	})
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| 	t.Run("Multiple_Wrong_If-None-Match", func(t *testing.T) {
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| 		req := &http.Request{Header: make(http.Header)}
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| 		w := httptest.NewRecorder()
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| 
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| 		req.Header.Set("If-None-Match", `"wrong etag", "wrong etag "`)
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| 
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| 		handled := HandleGenericETagCache(req, w, etag)
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| 
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| 		assert.False(t, handled)
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| 		assert.Equal(t, 2, countFormalHeaders(w.Header()))
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| 		assert.Contains(t, w.Header(), "Cache-Control")
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| 		assert.Contains(t, w.Header(), "Etag")
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| 		assert.Equal(t, etag, w.Header().Get("Etag"))
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| 	})
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| 	t.Run("Multiple_Correct_If-None-Match", func(t *testing.T) {
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| 		req := &http.Request{Header: make(http.Header)}
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| 		w := httptest.NewRecorder()
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| 
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| 		req.Header.Set("If-None-Match", `"wrong etag", `+etag)
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| 
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| 		handled := HandleGenericETagCache(req, w, etag)
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| 
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| 		assert.True(t, handled)
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| 		assert.Equal(t, 1, countFormalHeaders(w.Header()))
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| 		assert.Contains(t, w.Header(), "Etag")
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| 		assert.Equal(t, etag, w.Header().Get("Etag"))
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| 		assert.Equal(t, http.StatusNotModified, w.Code)
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| 	})
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| }
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