base-golang/pkg/httpclient/util.go

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2024-07-23 10:23:43 +08:00
package httpclient
import (
"bytes"
"context"
"crypto/tls"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"time"
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"gitea.bvbej.com/bvbej/base-golang/pkg/trace"
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"go.uber.org/zap"
)
const (
// _StatusReadRespErr read resp body err, should re-call doHTTP again.
_StatusReadRespErr = -204
// _StatusDoReqErr do req err, should re-call doHTTP again.
_StatusDoReqErr = -500
)
var defaultClient = &http.Client{
Transport: &http.Transport{
DisableKeepAlives: true,
DisableCompression: true,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
MaxIdleConns: 100,
MaxConnsPerHost: 100,
MaxIdleConnsPerHost: 100,
},
}
func doHTTP(ctx context.Context, method, url string, payload []byte, opt *option) ([]byte, int, error) {
ts := time.Now()
if mock := opt.mock; mock != nil {
if opt.dialog != nil {
opt.dialog.AppendResponse(&trace.Response{
HttpCode: http.StatusOK,
HttpCodeMsg: http.StatusText(http.StatusOK),
Body: string(mock()),
CostSeconds: time.Since(ts).Seconds(),
})
}
return mock(), http.StatusOK, nil
}
req, err := http.NewRequestWithContext(ctx, method, url, bytes.NewReader(payload))
if err != nil {
return nil, -1, errors.Join(err, fmt.Errorf("new request [%s %s] err", method, url))
}
for key, value := range opt.header {
req.Header.Set(key, value[0])
}
if opt.basicAuth != nil {
req.SetBasicAuth(opt.basicAuth.username, opt.basicAuth.password)
}
resp, err := defaultClient.Do(req)
if err != nil {
err = errors.Join(err, fmt.Errorf("do request [%s %s] err", method, url))
if opt.dialog != nil {
opt.dialog.AppendResponse(&trace.Response{
Body: err.Error(),
CostSeconds: time.Since(ts).Seconds(),
})
}
if opt.logger != nil {
opt.logger.Warn("doHTTP got err", zap.Error(err))
}
return nil, _StatusDoReqErr, err
}
defer func() {
_ = resp.Body.Close()
}()
body, err := io.ReadAll(resp.Body)
if err != nil {
err = errors.Join(err, fmt.Errorf("read resp body from [%s %s] err", method, url))
if opt.dialog != nil {
opt.dialog.AppendResponse(&trace.Response{
Body: err.Error(),
CostSeconds: time.Since(ts).Seconds(),
})
}
if opt.logger != nil {
opt.logger.Warn("doHTTP got err", zap.Error(err))
}
return nil, _StatusReadRespErr, err
}
defer func() {
if opt.dialog != nil {
opt.dialog.AppendResponse(&trace.Response{
Header: resp.Header,
HttpCode: resp.StatusCode,
HttpCodeMsg: resp.Status,
Body: string(body), // unsafe
CostSeconds: time.Since(ts).Seconds(),
})
}
}()
if resp.StatusCode != http.StatusOK {
return nil, resp.StatusCode, newReplyErr(
resp.StatusCode,
body,
fmt.Errorf("do [%s %s] return code: %d message: %s", method, url, resp.StatusCode, string(body)),
)
}
return body, http.StatusOK, nil
}
// addFormValuesIntoURL append url.Values into url string
func addFormValuesIntoURL(rawURL string, form url.Values) (string, error) {
if rawURL == "" {
return "", errors.New("rawURL required")
}
if len(form) == 0 {
return "", errors.New("form required")
}
target, err := url.Parse(rawURL)
if err != nil {
return "", errors.Join(err, fmt.Errorf("parse rawURL `%s` err", rawURL))
}
urlValues := target.Query()
for key, values := range form {
for _, value := range values {
urlValues.Add(key, value)
}
}
target.RawQuery = urlValues.Encode()
return target.String(), nil
}