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Redpill of Golang disable http2
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package main | |
import ( | |
"fmt" | |
"io/ioutil" | |
"net/http" | |
"os" | |
"strings" | |
resty "gopkg.in/resty.v1" | |
) | |
var _httpClient = &http.Client{ | |
Transport: &http.Transport{ | |
TLSClientConfig: nil, // will make client use http2 | |
}, | |
} | |
func simpleRPC(nodeURL string, body string) (*[]byte, *string, *int, error) { | |
req, err := http.NewRequest("POST", nodeURL, strings.NewReader(body)) | |
if err != nil { | |
return nil, nil, nil, err | |
} | |
req.Header.Add("Content-Type", "application/json") | |
resp, err := _httpClient.Do(req) | |
if err != nil { | |
return nil, nil, nil, err | |
} | |
if resp.StatusCode != http.StatusOK { | |
return nil, nil, nil, fmt.Errorf("!StatusOK") | |
} | |
defer resp.Body.Close() | |
respBody, err := ioutil.ReadAll(resp.Body) | |
if err != nil { | |
return nil, nil, nil, err | |
} | |
return &respBody, &resp.Proto, &resp.StatusCode, nil | |
} | |
func ForceDisableHttp2() { | |
goDebugEnvSet := []string{"http2client=0"} | |
for _, tEnv := range strings.Split(os.Getenv("GODEBUG"), ",") { | |
if strings.Contains(tEnv, "http2client") { | |
continue | |
} | |
goDebugEnvSet = append(goDebugEnvSet, strings.TrimSpace(tEnv)) | |
} | |
os.Setenv("GODEBUG", strings.Join(goDebugEnvSet, ",")) | |
} | |
func init() { | |
ForceDisableHttp2() // enable / disable to test me | |
} | |
func main() { | |
url := `https://WTF` | |
payload := `{"WTF":true}` | |
body, proto, statusCode, err := simpleRPC(url, payload) | |
if err != nil { | |
fmt.Println("normal failed", err) | |
} else { | |
fmt.Println("normal success", *proto, *statusCode, string(*body)) | |
} | |
resp, err := resty. | |
R(). | |
SetHeader("Content-Type", "application/json"). | |
SetBody(payload). | |
Post(url) | |
if err != nil { | |
fmt.Println("resty failed", err) | |
} else { | |
fmt.Println("resty success", resp.RawResponse.Proto, resp.RawResponse.StatusCode, string(resp.Body())) | |
} | |
} |
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