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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package http
import (
"io"
"strings"
"golang.org/x/net/html/charset"
)
// Response wraps a server response.
type Response struct {
Body io.Reader
StatusCode int
EffectiveURL string
LastModified string
ETag string
ContentType string
ContentLength int64
}
// HasServerFailure returns true if the status code represents a failure.
func (r *Response) HasServerFailure() bool {
return r.StatusCode >= 400
}
// IsModified returns true if the resource has been modified.
func (r *Response) IsModified(etag, lastModified string) bool {
if r.StatusCode == 304 {
return false
}
if r.ETag != "" && r.ETag == etag {
return false
}
if r.LastModified != "" && r.LastModified == lastModified {
return false
}
return true
}
// NormalizeBodyEncoding make sure the body is encoded in UTF-8.
func (r *Response) NormalizeBodyEncoding() (io.Reader, error) {
if strings.Contains(r.ContentType, "charset=") {
return charset.NewReader(r.Body, r.ContentType)
}
return r.Body, nil
}
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