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util.go
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util.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* https://opensource.org/licenses/Apache-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package util
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"html"
htmlTemplate "html/template"
"io/ioutil"
"net/http"
"time"
"tkestack.io/tke/pkg/util/log"
)
// Option is used to post request
type Option struct {
Protocol string `json:"protocol"`
Host string `json:"host"`
Path string `json:"path"`
Method string `json:"method"`
Headers map[string]string `json:"headers"`
Body interface{} `json:"body"`
}
// Request is used to do a post request
func Request(options Option) ([]byte, error) {
var err error
var rawBody []byte
rawBody, err = json.Marshal(options.Body)
if err != nil {
return nil, err
}
log.Debugf("rawBody: %v", string(rawBody))
body := bytes.NewReader(rawBody)
URL := options.Protocol + `://` + options.Host + options.Path
var req *http.Request
req, err = http.NewRequest(options.Method, URL, body)
if err != nil {
return nil, err
}
q := req.URL.Query()
req.URL.RawQuery = q.Encode()
for k, v := range options.Headers {
req.Header.Add(k, v)
}
var resp *http.Response
c := http.Client{
Transport: &http.Transport{
Proxy: http.ProxyFromEnvironment,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
resp, err = c.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("http get error : url=%v , statusCode=%v", URL, resp.StatusCode)
}
return ioutil.ReadAll(resp.Body)
}
// ParseString is used to get body according to template
func ParseTemplate(name string, template string, variables map[string]string) (string, error) {
var buffer bytes.Buffer
tmplBody := htmlTemplate.Must(htmlTemplate.New(name).Parse(template))
err := tmplBody.Execute(&buffer, variables)
if err != nil {
return "", err
}
return html.UnescapeString(buffer.String()), nil
}
// GetCurrentTime returns current timestamp
func GetCurrentTime() int64 {
return time.Now().Unix()
}
//render the alert status before sending alert message
func GetAlertStatus(status string) string {
var alertStatus string
if status == string("firing") {
alertStatus = "未恢复"
} else {
alertStatus = "已恢复"
}
alertStatus = fmt.Sprintf("告警状态: %s", alertStatus)
return alertStatus
}