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5dbf36f356
* Issue search support elasticsearch * Fix lint * Add indexer name on app.ini * add a warnning on SearchIssuesByKeyword * improve code
124 lines
3.1 KiB
Go
Vendored
124 lines
3.1 KiB
Go
Vendored
// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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import (
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"bytes"
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"compress/gzip"
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"runtime"
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"strings"
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)
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// Elasticsearch-specific HTTP request
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type Request http.Request
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// NewRequest is a http.Request and adds features such as encoding the body.
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func NewRequest(method, url string) (*Request, error) {
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req, err := http.NewRequest(method, url, nil)
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if err != nil {
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return nil, err
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}
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req.Header.Add("User-Agent", "elastic/"+Version+" ("+runtime.GOOS+"-"+runtime.GOARCH+")")
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req.Header.Add("Accept", "application/json")
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req.Header.Set("Content-Type", "application/json")
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return (*Request)(req), nil
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}
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// SetBasicAuth wraps http.Request's SetBasicAuth.
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func (r *Request) SetBasicAuth(username, password string) {
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((*http.Request)(r)).SetBasicAuth(username, password)
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}
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// SetBody encodes the body in the request. You may pass a flag to
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// compress the request via gzip.
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func (r *Request) SetBody(body interface{}, gzipCompress bool) error {
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switch b := body.(type) {
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case string:
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if gzipCompress {
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return r.setBodyGzip(b)
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}
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return r.setBodyString(b)
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default:
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if gzipCompress {
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return r.setBodyGzip(body)
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}
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return r.setBodyJson(body)
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}
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}
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// setBodyJson encodes the body as a struct to be marshaled via json.Marshal.
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func (r *Request) setBodyJson(data interface{}) error {
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body, err := json.Marshal(data)
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if err != nil {
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return err
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}
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r.Header.Set("Content-Type", "application/json")
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r.setBodyReader(bytes.NewReader(body))
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return nil
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}
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// setBodyString encodes the body as a string.
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func (r *Request) setBodyString(body string) error {
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return r.setBodyReader(strings.NewReader(body))
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}
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// setBodyGzip gzip's the body. It accepts both strings and structs as body.
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// The latter will be encoded via json.Marshal.
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func (r *Request) setBodyGzip(body interface{}) error {
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switch b := body.(type) {
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case string:
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buf := new(bytes.Buffer)
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w := gzip.NewWriter(buf)
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if _, err := w.Write([]byte(b)); err != nil {
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return err
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}
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if err := w.Close(); err != nil {
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return err
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}
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r.Header.Add("Content-Encoding", "gzip")
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r.Header.Add("Vary", "Accept-Encoding")
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return r.setBodyReader(bytes.NewReader(buf.Bytes()))
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default:
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data, err := json.Marshal(b)
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if err != nil {
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return err
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}
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buf := new(bytes.Buffer)
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w := gzip.NewWriter(buf)
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if _, err := w.Write(data); err != nil {
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return err
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}
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if err := w.Close(); err != nil {
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return err
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}
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r.Header.Add("Content-Encoding", "gzip")
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r.Header.Add("Vary", "Accept-Encoding")
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r.Header.Set("Content-Type", "application/json")
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return r.setBodyReader(bytes.NewReader(buf.Bytes()))
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}
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}
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// setBodyReader writes the body from an io.Reader.
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func (r *Request) setBodyReader(body io.Reader) error {
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rc, ok := body.(io.ReadCloser)
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if !ok && body != nil {
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rc = ioutil.NopCloser(body)
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}
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r.Body = rc
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if body != nil {
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switch v := body.(type) {
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case *strings.Reader:
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r.ContentLength = int64(v.Len())
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case *bytes.Buffer:
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r.ContentLength = int64(v.Len())
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}
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}
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return nil
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}
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