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/*
* ============LICENSE_START=======================================================
* oom-certservice-k8s-external-provider
* ================================================================================
* Copyright (C) 2020 Nokia. 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
*
* 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.
* ============LICENSE_END=========================================================
*/
package certserviceclient
import (
"crypto/tls"
"crypto/x509"
"fmt"
"net/http"
"net/url"
"path"
)
func CreateCertServiceClient(baseUrl string, healthEndpoint string, certEndpoint string, caName string,
keyPemBase64 []byte, certPemBase64 []byte, cacertPemBase64 []byte) (*CertServiceClientImpl, error) {
cert, err := tls.X509KeyPair(certPemBase64, keyPemBase64)
if err != nil {
return nil, err
}
x509.NewCertPool()
caCertPool := x509.NewCertPool()
ok := caCertPool.AppendCertsFromPEM(cacertPemBase64)
if !ok {
return nil, fmt.Errorf("couldn't certs from cacert")
}
httpClient := &http.Client{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{
RootCAs: caCertPool,
Certificates: []tls.Certificate{cert},
},
},
}
healthUrl, certificationUrl, err := validateAndParseUrls(baseUrl, healthEndpoint, certEndpoint, caName)
if err != nil {
return nil, err
}
client := CertServiceClientImpl{
healthUrl: healthUrl,
certificationUrl: certificationUrl,
httpClient: httpClient,
}
return &client, nil
}
func validateAndParseUrls(baseUrl string, healthEndpoint string, certEndpoint string, caName string) (string, string, error) {
if err := validateUrls(baseUrl, healthEndpoint, certEndpoint, caName); err != nil {
return "", "", err
}
certUrl, _ := url.Parse(baseUrl)
healthUrl, _ := url.Parse(baseUrl)
certUrl.Path = path.Join(certEndpoint, caName)
healthUrl.Path = path.Join(healthEndpoint)
return healthUrl.String(), certUrl.String(), nil
}
func validateUrls(baseUrl string, healthEndpoint string, certEndpoint string, caName string) error {
if _, err := url.Parse(baseUrl); err != nil {
return err
}
if caName == "" {
return fmt.Errorf("caName cannot be empty")
}
if _, err := url.Parse(caName); err != nil {
return err
}
if _, err := url.Parse(healthEndpoint); err != nil {
return err
}
if _, err := url.Parse(certEndpoint); err != nil {
return err
}
return nil
}
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