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gitea/vendor/github.com/olivere/elastic/v7/response.go

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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import (
"encoding/json"
"errors"
"io"
"io/ioutil"
"net/http"
)
var (
// ErrResponseSize is raised if a response body exceeds the given max body size.
ErrResponseSize = errors.New("elastic: response size too large")
)
// Response represents a response from Elasticsearch.
type Response struct {
// StatusCode is the HTTP status code, e.g. 200.
StatusCode int
// Header is the HTTP header from the HTTP response.
// Keys in the map are canonicalized (see http.CanonicalHeaderKey).
Header http.Header
// Body is the deserialized response body. Only available if streaming is disabled.
Body json.RawMessage
// DeprecationWarnings lists all deprecation warnings returned from
// Elasticsearch.
DeprecationWarnings []string
// BodyReader is the body as a reader. Only available if streaming is enabled.
BodyReader io.ReadCloser
}
// newResponse creates a new response from the HTTP response.
func (c *Client) newResponse(res *http.Response, maxBodySize int64, stream bool) (*Response, error) {
r := &Response{
StatusCode: res.StatusCode,
Header: res.Header,
DeprecationWarnings: res.Header["Warning"],
}
if stream {
r.BodyReader = res.Body
} else if res.Body != nil {
body := io.Reader(res.Body)
if maxBodySize > 0 {
if res.ContentLength > maxBodySize {
return nil, ErrResponseSize
}
body = io.LimitReader(body, maxBodySize+1)
}
slurp, err := ioutil.ReadAll(body)
if err != nil {
return nil, err
}
if maxBodySize > 0 && int64(len(slurp)) > maxBodySize {
return nil, ErrResponseSize
}
// HEAD requests return a body but no content
if len(slurp) > 0 {
r.Body = json.RawMessage(slurp)
}
}
return r, nil
}