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api.go
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api.go
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package api
// Copyright (c) 2018 Bhojpur Consulting Private Limited, India. All rights reserved.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
belaur "github.com/bhojpur/belaur"
)
// RegisterResponse represents a response from API registration
// call.
type RegisterResponse struct {
UniqueID string `json:"uniqueid"`
Cert string `json:"cert"`
Key string `json:"key"`
CACert string `json:"cacert"`
}
// RegisterWorker registers a new worker at a Bhojpur Belaur instance.
// It uses the given secret for authentication and returns certs
// which can be used for a future mTLS connection.
func RegisterWorker(host, secret, name string, tags []string) (*RegisterResponse, error) {
fullURL := fmt.Sprintf("%s/api/%s/worker/register", host, belaur.APIVersion)
resp, err := http.PostForm(fullURL,
url.Values{
"secret": {secret},
"tags": tags,
"name": {name},
})
if err != nil {
return nil, err
}
defer resp.Body.Close()
// Read the content
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
// Check the return code first
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("unable to register worker. Return code was '%d' and message was: %s", resp.StatusCode, string(body))
}
// Unmarshal the json response
regResp := RegisterResponse{}
if err = json.Unmarshal(body, ®Resp); err != nil {
return nil, fmt.Errorf("cannot unmarshal registration response: %s", string(body))
}
return ®Resp, nil
}