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vsphere-influxdb-go/vendor/github.com/vmware/govmomi/govc/about/cert.go

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2017-10-25 22:52:40 +02:00
/*
Copyright (c) 2016 VMware, Inc. 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.
*/
package about
import (
"context"
"encoding/pem"
"flag"
"fmt"
"io"
"net/http"
"os"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/object"
"github.com/vmware/govmomi/vim25/soap"
)
type cert struct {
*flags.ClientFlag
*flags.OutputFlag
show bool
thumbprint bool
}
func init() {
cli.Register("about.cert", &cert{})
}
func (cmd *cert) Register(ctx context.Context, f *flag.FlagSet) {
cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
cmd.ClientFlag.Register(ctx, f)
cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
cmd.OutputFlag.Register(ctx, f)
f.BoolVar(&cmd.show, "show", false, "Show PEM encoded server certificate only")
f.BoolVar(&cmd.thumbprint, "thumbprint", false, "Output host hash and thumbprint only")
}
func (cmd *cert) Description() string {
return `Display TLS certificate info for HOST.
If the HOST certificate cannot be verified, about.cert will return with exit code 60 (as curl does).
If the '-k' flag is provided, about.cert will return with exit code 0 in this case.
The SHA1 thumbprint can also be used as '-thumbprint' for the 'host.add' and 'cluster.add' commands.
Examples:
govc about.cert -k -json | jq -r .ThumbprintSHA1
govc about.cert -k -show | sudo tee /usr/local/share/ca-certificates/host.crt
govc about.cert -k -thumbprint | tee -a ~/.govmomi/known_hosts`
}
func (cmd *cert) Process(ctx context.Context) error {
if err := cmd.ClientFlag.Process(ctx); err != nil {
return err
}
if err := cmd.OutputFlag.Process(ctx); err != nil {
return err
}
return nil
}
type certResult struct {
cmd *cert
info object.HostCertificateInfo
}
func (r *certResult) Write(w io.Writer) error {
if r.cmd.show {
return pem.Encode(w, &pem.Block{Type: "CERTIFICATE", Bytes: r.info.Certificate.Raw})
}
if r.cmd.thumbprint {
u := r.cmd.URLWithoutPassword()
_, err := fmt.Fprintf(w, "%s %s\n", u.Host, r.info.ThumbprintSHA1)
return err
}
return r.cmd.WriteResult(&r.info)
}
func (cmd *cert) Run(ctx context.Context, f *flag.FlagSet) error {
u := cmd.URLWithoutPassword()
c := soap.NewClient(u, false)
t := c.Client.Transport.(*http.Transport)
r := certResult{cmd: cmd}
if err := cmd.SetRootCAs(c); err != nil {
return err
}
if err := r.info.FromURL(u, t.TLSClientConfig); err != nil {
return err
}
if r.info.Err != nil && r.cmd.IsSecure() {
cmd.Out = os.Stderr
// using same exit code as curl:
defer os.Exit(60)
}
return r.Write(cmd.Out)
}