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http.go
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http.go
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// Copyright 2015 The Cockroach Authors.
//
// 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
//
// http://www.apache.org/licenses/LICENSE-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 OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
//
// Author: Peter Mattis (peter@cockroachlabs.com)
package cluster
import (
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/cockroachdb/cockroach/base"
"github.com/cockroachdb/cockroach/util/log"
)
// HTTPClient is an http.Client configured for querying a cluster. We need to
// run with "InsecureSkipVerify" (at least on Docker) due to the fact that we
// cannot use a fixed hostname to reach the cluster. This in turn means that we
// do not have a verified server name in the certs.
var HTTPClient = http.Client{
Timeout: base.NetworkTimeout,
Transport: &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}}
// getJSON retrieves the URL specified by the parameters and
// and unmarshals the result into the supplied interface.
func getJSON(tls bool, hostport, path string, v interface{}) error {
protocol := "https"
if !tls {
protocol = "http"
}
resp, err := HTTPClient.Get(fmt.Sprintf("%s://%s%s", protocol, hostport, path))
if err != nil {
if log.V(1) {
log.Info(err)
}
return err
}
defer resp.Body.Close()
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
if log.V(1) {
log.Info(err)
}
return err
}
if err := json.Unmarshal(b, v); err != nil {
if log.V(1) {
log.Infof("%v\n%s", err, b)
}
}
return nil
}