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factory.go
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factory.go
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/*
* Copyright 2022 VMware, Inc.
*
* 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.
*/
package om
import (
"fmt"
"net"
"net/http"
"net/url"
"time"
"github.com/vmware-tanzu/service-instance-migrator-for-cloud-foundry/pkg/log"
"github.com/vmware-tanzu/service-instance-migrator-for-cloud-foundry/pkg/om/httpclient"
boshhttp "github.com/vmware-tanzu/service-instance-migrator-for-cloud-foundry/pkg/bosh/httpclient"
)
type Factory struct{}
func NewFactory() Factory {
return Factory{}
}
func (f Factory) New(config Config) (OpsManager, error) {
err := config.Validate()
if err != nil {
return opsManagerImpl{}, fmt.Errorf("failed to validate opsman client config: %w", err)
}
client, err := f.httpClient(config)
if err != nil {
return opsManagerImpl{}, err
}
return opsManagerImpl{client: client}, nil
}
func (f Factory) httpClient(config Config) (httpclient.OpsManHTTPClient, error) {
certPool, err := config.CACertPool()
if err != nil {
return httpclient.OpsManHTTPClient{}, err
}
if certPool == nil {
log.Debugln("Using default root CAs")
} else {
log.Debugln("Using custom root CAs")
}
var rawClient *http.Client
if certPool == nil || len(config.AllProxy) == 0 {
rawClient = boshhttp.InsecureClient()
} else {
rawClient = boshhttp.DefaultClient(config.AllProxy, certPool)
}
retryClient := boshhttp.NewNetworkSafeRetryClient(rawClient, 5, 500*time.Millisecond)
authedClient := boshhttp.NewAdjustableClient(retryClient, boshhttp.NewAuthRequestAdjustment(
config.TokenFunc,
"",
"",
))
httpClient := boshhttp.NewHTTPClientOpts(authedClient, boshhttp.Opts{NoRedactUrlQuery: true})
endpoint := url.URL{
Scheme: "https",
Host: net.JoinHostPort(config.Host, fmt.Sprintf("%d", config.Port)),
}
return httpclient.NewHTTPClient(
endpoint.String(),
httpClient,
), nil
}