Cache cleanup fix, redirect root to github repo

cache.go

@@ -46,7 +46,7 @@ func (c *memoryCache) Clean() {
 	}
 
 	// TODO: this is inefficient
-	if c.size > c.Limit {
+	if c.Limit > 0 && c.size > c.Limit {
 		ids, times := make([]string, len(c.entries)), make([]time.Time, len(c.entries))
 		var i int
 		for id, entry := range c.entries {
@@ -86,7 +86,7 @@ func (c *memoryCache) Put(id string, buf []byte, extra string, exp time.Duration
 	defer c.mu.Unlock()
 	c.ensureInit()
 
-	if int64(len(buf)) > c.Limit {
+	if c.Limit > 0 && int64(len(buf)) > c.Limit {
 		if c.Verbose {
 			fmt.Printf("memoryCache.Put: cache too full: %s: %s\n", exp, id)
 		}

kfwproxy.go

@@ -21,6 +21,7 @@ func main() {
 	h := &memoryCache{Limit: *cacheLimit * 1000000, Verbose: *verbose}
 	r := httprouter.New()
 
+	r.GET("/", handler(http.RedirectHandler("https://github.com/geek1011/kfwproxy", http.StatusTemporaryRedirect)))
 	r.GET("/stats", handler(http.HandlerFunc(h.handleStats)))
 
 	r.GET("/api.kobobooks.com/1.0/UpgradeCheck/Device/:device/:affiliate/:version/:serial", handler(