github.com/vmware/govmomi@v0.37.1/govc/flags/host_connect.go (about)

     1  /*
     2  Copyright (c) 2015 VMware, Inc. All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package flags
    18  
    19  import (
    20  	"context"
    21  	"flag"
    22  	"fmt"
    23  	"net/url"
    24  
    25  	"github.com/vmware/govmomi/object"
    26  	"github.com/vmware/govmomi/vim25"
    27  	"github.com/vmware/govmomi/vim25/types"
    28  )
    29  
    30  type HostConnectFlag struct {
    31  	common
    32  
    33  	types.HostConnectSpec
    34  
    35  	noverify bool
    36  }
    37  
    38  var hostConnectFlagKey = flagKey("hostConnect")
    39  
    40  func NewHostConnectFlag(ctx context.Context) (*HostConnectFlag, context.Context) {
    41  	if v := ctx.Value(hostConnectFlagKey); v != nil {
    42  		return v.(*HostConnectFlag), ctx
    43  	}
    44  
    45  	v := &HostConnectFlag{}
    46  	ctx = context.WithValue(ctx, hostConnectFlagKey, v)
    47  	return v, ctx
    48  }
    49  
    50  func (flag *HostConnectFlag) Register(ctx context.Context, f *flag.FlagSet) {
    51  	flag.RegisterOnce(func() {
    52  		f.StringVar(&flag.HostName, "hostname", "", "Hostname or IP address of the host")
    53  		f.StringVar(&flag.UserName, "username", "", "Username of administration account on the host")
    54  		f.StringVar(&flag.Password, "password", "", "Password of administration account on the host")
    55  		f.StringVar(&flag.SslThumbprint, "thumbprint", "", "SHA-1 thumbprint of the host's SSL certificate")
    56  		f.BoolVar(&flag.Force, "force", false, "Force when host is managed by another VC")
    57  
    58  		f.BoolVar(&flag.noverify, "noverify", false, "Accept host thumbprint without verification")
    59  	})
    60  }
    61  
    62  func (flag *HostConnectFlag) Process(ctx context.Context) error {
    63  	return nil
    64  }
    65  
    66  // Spec attempts to fill in SslThumbprint if empty.
    67  // First checks GOVC_TLS_KNOWN_HOSTS, if not found and noverify=true then
    68  // use object.HostCertificateInfo to get the thumbprint.
    69  func (flag *HostConnectFlag) Spec(c *vim25.Client) types.HostConnectSpec {
    70  	spec := flag.HostConnectSpec
    71  
    72  	if spec.SslThumbprint == "" {
    73  		spec.SslThumbprint = c.Thumbprint(spec.HostName)
    74  
    75  		if spec.SslThumbprint == "" && flag.noverify {
    76  			var info object.HostCertificateInfo
    77  			t := c.DefaultTransport()
    78  			_ = info.FromURL(&url.URL{Host: spec.HostName}, t.TLSClientConfig)
    79  			spec.SslThumbprint = info.ThumbprintSHA1
    80  		}
    81  	}
    82  
    83  	return spec
    84  }
    85  
    86  // Fault checks if error is SSLVerifyFault, including the thumbprint if so
    87  func (flag *HostConnectFlag) Fault(err error) error {
    88  	if err == nil {
    89  		return nil
    90  	}
    91  
    92  	if f, ok := err.(types.HasFault); ok {
    93  		switch fault := f.Fault().(type) {
    94  		case *types.SSLVerifyFault:
    95  			return fmt.Errorf("%s thumbprint=%s", err, fault.Thumbprint)
    96  		}
    97  	}
    98  
    99  	return err
   100  }