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https://github.com/caddyserver/caddy.git
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8e7a36de45
Signed-off-by: Tw <tw19881113@gmail.com>
71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
package httpserver
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import (
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"net/http"
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"time"
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)
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// ResponseRecorder is a type of http.ResponseWriter that captures
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// the status code written to it and also the size of the body
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// written in the response. A status code does not have
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// to be written, however, in which case 200 must be assumed.
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// It is best to have the constructor initialize this type
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// with that default status code.
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//
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// Setting the Replacer field allows middlewares to type-assert
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// the http.ResponseWriter to ResponseRecorder and set their own
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// placeholder values for logging utilities to use.
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//
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// Beware when accessing the Replacer value; it may be nil!
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type ResponseRecorder struct {
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*ResponseWriterWrapper
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Replacer Replacer
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status int
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size int
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start time.Time
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}
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// NewResponseRecorder makes and returns a new responseRecorder,
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// which captures the HTTP Status code from the ResponseWriter
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// and also the length of the response body written through it.
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// Because a status is not set unless WriteHeader is called
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// explicitly, this constructor initializes with a status code
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// of 200 to cover the default case.
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func NewResponseRecorder(w http.ResponseWriter) *ResponseRecorder {
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return &ResponseRecorder{
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ResponseWriterWrapper: &ResponseWriterWrapper{ResponseWriter: w},
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status: http.StatusOK,
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start: time.Now(),
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}
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}
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// WriteHeader records the status code and calls the
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// underlying ResponseWriter's WriteHeader method.
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func (r *ResponseRecorder) WriteHeader(status int) {
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r.status = status
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r.ResponseWriterWrapper.WriteHeader(status)
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}
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// Write is a wrapper that records the size of the body
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// that gets written.
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func (r *ResponseRecorder) Write(buf []byte) (int, error) {
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n, err := r.ResponseWriterWrapper.Write(buf)
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if err == nil {
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r.size += n
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}
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return n, err
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}
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// Size is a Getter to size property
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func (r *ResponseRecorder) Size() int {
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return r.size
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}
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// Status is a Getter to status property
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func (r *ResponseRecorder) Status() int {
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return r.status
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}
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// Interface guards
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var _ HTTPInterfaces = (*ResponseRecorder)(nil)
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