name change of avatar

modules/avatar/avatar.go

@@ -9,7 +9,7 @@ It is recommend to use this way
 
 	cacheDir := "./cache"
 	defaultImg := "./default.jpg"
-	http.Handle("/avatar/", avatar.HttpHandler(cacheDir, defaultImg))
+	http.Handle("/avatar/", avatar.CacheServer(cacheDir, defaultImg))
 */
 package avatar
 
@@ -135,12 +135,12 @@ func (this *Avatar) UpdateTimeout(timeout time.Duration) error {
 	return err
 }
 
-type avatarHandler struct {
+type service struct {
 	cacheDir string
 	altImage string
 }
 
-func (this *avatarHandler) mustInt(r *http.Request, defaultValue int, keys ...string) int {
+func (this *service) mustInt(r *http.Request, defaultValue int, keys ...string) int {
 	var v int
 	for _, k := range keys {
 		if _, err := fmt.Sscanf(r.FormValue(k), "%d", &v); err == nil {
@@ -150,7 +150,7 @@ func (this *avatarHandler) mustInt(r *http.Request, defaultValue int, keys ...st
 	return defaultValue
 }
 
-func (this *avatarHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+func (this *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	urlPath := r.URL.Path
 	hash := urlPath[strings.LastIndex(urlPath, "/")+1:]
 	size := this.mustInt(r, 80, "s", "size") // default size = 80*80
@@ -183,9 +183,9 @@ func (this *avatarHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// http.Handle("/avatar/", avatar.HttpHandler("./cache"))
-func HttpHandler(cacheDir string, defaultImgPath string) http.Handler {
-	return &avatarHandler{
+// http.Handle("/avatar/", avatar.CacheServer("./cache"))
+func CacheServer(cacheDir string, defaultImgPath string) http.Handler {
+	return &service{
 		cacheDir: cacheDir,
 		altImage: defaultImgPath,
 	}

modules/avatar/avatar_test.go

@@ -51,7 +51,7 @@ func TestFetchMany(t *testing.T) {
 // wget http://www.artsjournal.com/artfulmanager/wp/wp-content/uploads/2013/12/200x200xmirror_cat.jpg.pagespeed.ic.GOZSv6v1_H.jpg -O default.jpg
 /*
 func TestHttp(t *testing.T) {
-	http.Handle("/", avatar.HttpHandler("./", "default.jpg"))
+	http.Handle("/", avatar.CacheServer("./", "default.jpg"))
 	http.ListenAndServe(":8001", nil)
 }
 */

web.go

@@ -96,8 +96,8 @@ func runWeb(*cli.Context) {
 	m.Get("/stars", reqSignIn, user.Stars)
 	m.Get("/help", routers.Help)
 
-	avatarCache := avatar.HttpHandler("public/img/avatar/", "public/img/avatar_default.jpg")
-	m.Get("/avatar/:hash", avatarCache.ServeHTTP)
+	avt := avatar.CacheServer("public/img/avatar/", "public/img/avatar_default.jpg")
+	m.Get("/avatar/:hash", avt.ServeHTTP)
 
 	m.Group("/user", func(r martini.Router) {
 		r.Any("/login", binding.BindIgnErr(auth.LogInForm{}), user.SignIn)