use http1.1 to boost the upload speed (#564)

Co-authored-by: PT-ATA No One <[email protected]>

golang/vaas/v2/examples/file-verdict-request/main.go

@@ -21,6 +21,7 @@ func main() {
 	if err := godotenv.Load(); err != nil {
 		log.Printf("failed to load environment - %v", err)
 	}
+	log.Printf(os.LookupEnv("CLIENT_ID"))
 
 	// Retrieve the Client ID and Client Secret from environment variables
 	clientID, exists := os.LookupEnv("CLIENT_ID")
@@ -31,16 +32,24 @@ func main() {
 	if !exists {
 		log.Fatal("no Client Secret set")
 	}
+	tokenEndpoint, exists := os.LookupEnv("TOKEN_URL")
+	if !exists {
+		tokenEndpoint = "https://account-staging.gdata.de/realms/vaas-staging/protocol/openid-connect/token"
+	}
+	vaasUrl, exists := os.LookupEnv("VAAS_URL")
+	if !exists {
+		tokenEndpoint = "wss://gateway.staging.vaas.gdatasecurity.de"
+	}
 
 	// Create a new authenticator with the provided Client ID and Client Secret
-	auth := authenticator.NewWithDefaultTokenEndpoint(clientID, clientSecret)
+	auth := authenticator.New(clientID, clientSecret, tokenEndpoint)
 
 	// Create a new VaaS client with default options
-	vaasClient := vaas.NewWithDefaultEndpoint(options.VaasOptions{
+	vaasClient := vaas.New(options.VaasOptions{
 		UseHashLookup: true,
 		UseCache:      false,
 		EnableLogs:    false,
-	})
+	}, vaasUrl)
 
 	// Create a context with a cancellation function
 	connectCtx, webSocketCancel := context.WithTimeout(context.Background(), 5*time.Second)
@@ -57,7 +66,7 @@ func main() {
 	defer analysisCancel()
 
 	// Request a verdict for a specific file (replace "path-to-your-file" with the actual file path)
-	result, err := vaasClient.ForFile(analysisCtx, "path-to-your-file")
+	result, err := vaasClient.ForFile(analysisCtx, "1GB.testfile")
 	if err != nil {
 		log.Fatal(err)
 	}

golang/vaas/v2/pkg/vaas/vaas.go

@@ -5,6 +5,7 @@ package vaas
 import (
 	"bytes"
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"strings"
@@ -576,8 +577,17 @@ func (v *vaas) uploadFile(file io.Reader, contentLength int64, url string, token
 	}
 
 	req.Header.Add("Authorization", token)
+	log.Println(req.Proto)
+	log.Println(req.ProtoMajor)
+	log.Println(req.ProtoMinor)
 
-	httpResponse, err := http.DefaultClient.Do(req)
+	client := http.Client{
+		Transport: &http.Transport{
+			TLSNextProto: make(map[string]func(authority string, c *tls.Conn) http.RoundTripper),
+		},
+	}
+	httpResponse, err := client.Do(req)
+	log.Println(httpResponse.Proto)
 	if err != nil {
 		return err
 	}