fix: error on different frag lens

http/http.go

@@ -1,4 +1,4 @@
-// Package http is the same as the standard http lib
+// Package http is a wrapper around the standard http library with enhanced DNS resolution and TLS handling capabilities.
 package http
 
 import (
@@ -16,18 +16,23 @@ import (
 )
 
 var (
-	ErrNoTLSConnection  = errors.New("no tls connection")
+	// ErrNoTLSConnection is returned when a TLS connection cannot be established.
+	ErrNoTLSConnection = errors.New("no tls connection")
+	// ErrEmptyHostAddress is returned when the host address is empty.
 	ErrEmptyHostAddress = errors.New("empty host addr")
 )
 
+// defaultDialer is the default dialer used for connecting to hosts.
 var defaultDialer = net.Dialer{
 	Timeout: 10 * time.Second,
 }
 
+// SetDefaultClientTimeout sets the default timeout for the client's dialer.
 func SetDefaultClientTimeout(t time.Duration) {
 	defaultDialer.Timeout = t
 }
 
+// DefaultClient is the default HTTP client with custom transport settings, including DNS resolution and TLS handling.
 var DefaultClient = http.Client{
 	Transport: &http.Transport{
 		Proxy: http.ProxyFromEnvironment,
@@ -40,12 +45,13 @@ var DefaultClient = http.Client{
 			if err != nil {
 				return nil, err
 			}
-			if len(addr) == 0 {
+			if len(addrs) == 0 {
 				return nil, ErrEmptyHostAddress
 			}
 			var conn net.Conn
 			var tlsConn *tls.Conn
 			for _, a := range addrs {
+				// Apply timeout if set, otherwise use deadline
 				if defaultDialer.Timeout != 0 {
 					var cancel context.CancelFunc
 					ctx, cancel = context.WithTimeout(context.Background(), defaultDialer.Timeout)
@@ -63,7 +69,7 @@ var DefaultClient = http.Client{
 					ServerName: host,
 					MinVersion: tls.VersionTLS12,
 				})
-				// re-init ctx due to deadline settings in tcp dial
+				// Re-initialize context due to potential deadline changes from TCP dial
 				if defaultDialer.Timeout != 0 {
 					var cancel context.CancelFunc
 					ctx, cancel = context.WithTimeout(context.Background(), defaultDialer.Timeout)
@@ -104,18 +110,22 @@ var DefaultClient = http.Client{
 	},
 }
 
+// Get performs an HTTP GET request using the default client.
 func Get(url string) (resp *http.Response, err error) {
 	return DefaultClient.Get(url)
 }
 
+// Head performs an HTTP HEAD request using the default client.
 func Head(url string) (resp *http.Response, err error) {
 	return DefaultClient.Head(url)
 }
 
+// Post performs an HTTP POST request using the default client.
 func Post(url string, contentType string, body io.Reader) (resp *http.Response, err error) {
 	return DefaultClient.Post(url, contentType, body)
 }
 
+// PostForm performs an HTTP POST request with form data using the default client.
 func PostForm(url string, data url.Values) (resp *http.Response, err error) {
 	return DefaultClient.PostForm(url, data)
 }