63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
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package netxlite
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import "net/http"
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// HTTPTransport is an http.Transport-like structure.
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type HTTPTransport interface {
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// RoundTrip performs the HTTP round trip.
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RoundTrip(req *http.Request) (*http.Response, error)
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// CloseIdleConnections closes idle connections.
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CloseIdleConnections()
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}
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// HTTPTransportLogger is an HTTPTransport with logging.
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type HTTPTransportLogger struct {
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// HTTPTransport is the underlying HTTP transport.
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HTTPTransport HTTPTransport
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// Logger is the underlying logger.
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Logger Logger
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}
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var _ HTTPTransport = &HTTPTransportLogger{}
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// RoundTrip implements HTTPTransport.RoundTrip.
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func (txp *HTTPTransportLogger) RoundTrip(req *http.Request) (*http.Response, error) {
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host := req.Host
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if host == "" {
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host = req.URL.Host
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}
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req.Header.Set("Host", host) // anticipate what Go would do
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return txp.logTrip(req)
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}
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// logTrip is an HTTP round trip with logging.
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func (txp *HTTPTransportLogger) logTrip(req *http.Request) (*http.Response, error) {
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txp.Logger.Debugf("> %s %s", req.Method, req.URL.String())
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for key, values := range req.Header {
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for _, value := range values {
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txp.Logger.Debugf("> %s: %s", key, value)
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}
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}
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txp.Logger.Debug(">")
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resp, err := txp.HTTPTransport.RoundTrip(req)
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if err != nil {
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txp.Logger.Debugf("< %s", err)
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return nil, err
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}
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txp.Logger.Debugf("< %d", resp.StatusCode)
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for key, values := range resp.Header {
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for _, value := range values {
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txp.Logger.Debugf("< %s: %s", key, value)
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}
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}
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txp.Logger.Debug("<")
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return resp, nil
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}
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// CloseIdleConnections implement HTTPTransport.CloseIdleConnections.
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func (txp *HTTPTransportLogger) CloseIdleConnections() {
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txp.HTTPTransport.CloseIdleConnections()
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}
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