/
login.go
146 lines (127 loc) · 3.96 KB
/
login.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
package client
import (
"bufio"
"fmt"
"io"
"os"
"runtime"
"strings"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/term"
"github.com/docker/docker/registry"
"github.com/docker/engine-api/client"
"github.com/docker/engine-api/types"
)
// CmdLogin logs in or registers a user to a Docker registry service.
//
// If no server is specified, the user will be logged into or registered to the registry's index server.
//
// Usage: docker login SERVER
func (cli *DockerCli) CmdLogin(args ...string) error {
cmd := Cli.Subcmd("login", []string{"[SERVER]"}, Cli.DockerCommands["login"].Description+".\nIf no server is specified \""+registry.IndexServer+"\" is the default.", true)
cmd.Require(flag.Max, 1)
flUser := cmd.String([]string{"u", "-username"}, "", "Username")
flPassword := cmd.String([]string{"p", "-password"}, "", "Password")
flEmail := cmd.String([]string{"e", "-email"}, "", "Email")
cmd.ParseFlags(args, true)
// On Windows, force the use of the regular OS stdin stream. Fixes #14336/#14210
if runtime.GOOS == "windows" {
cli.in = os.Stdin
}
serverAddress := registry.IndexServer
if len(cmd.Args()) > 0 {
serverAddress = cmd.Arg(0)
}
authConfig, err := cli.configureAuth(*flUser, *flPassword, *flEmail, serverAddress)
if err != nil {
return err
}
response, err := cli.client.RegistryLogin(authConfig)
if err != nil {
if client.IsErrUnauthorized(err) {
delete(cli.configFile.AuthConfigs, serverAddress)
if err2 := cli.configFile.Save(); err2 != nil {
fmt.Fprintf(cli.out, "WARNING: could not save config file: %v\n", err2)
}
}
return err
}
if err := cli.configFile.Save(); err != nil {
return fmt.Errorf("Error saving config file: %v", err)
}
fmt.Fprintf(cli.out, "WARNING: login credentials saved in %s\n", cli.configFile.Filename())
if response.Status != "" {
fmt.Fprintf(cli.out, "%s\n", response.Status)
}
return nil
}
func (cli *DockerCli) promptWithDefault(prompt string, configDefault string) {
if configDefault == "" {
fmt.Fprintf(cli.out, "%s: ", prompt)
} else {
fmt.Fprintf(cli.out, "%s (%s): ", prompt, configDefault)
}
}
func (cli *DockerCli) configureAuth(flUser, flPassword, flEmail, serverAddress string) (types.AuthConfig, error) {
authconfig, ok := cli.configFile.AuthConfigs[serverAddress]
if !ok {
authconfig = types.AuthConfig{}
}
if flUser == "" {
cli.promptWithDefault("Username", authconfig.Username)
flUser = readInput(cli.in, cli.out)
flUser = strings.TrimSpace(flUser)
if flUser == "" {
flUser = authconfig.Username
}
}
if flPassword == "" {
oldState, err := term.SaveState(cli.inFd)
if err != nil {
return authconfig, err
}
fmt.Fprintf(cli.out, "Password: ")
term.DisableEcho(cli.inFd, oldState)
flPassword = readInput(cli.in, cli.out)
fmt.Fprint(cli.out, "\n")
term.RestoreTerminal(cli.inFd, oldState)
if flPassword == "" {
return authconfig, fmt.Errorf("Error : Password Required")
}
}
// Assume that a different username means they may not want to use
// the email from the config file, so prompt it
if flUser != authconfig.Username {
if flEmail == "" {
cli.promptWithDefault("Email", authconfig.Email)
flEmail = readInput(cli.in, cli.out)
if flEmail == "" {
flEmail = authconfig.Email
}
}
} else {
// However, if they don't override the username use the
// email from the cmd line if specified. IOW, allow
// then to change/override them. And if not specified, just
// use what's in the config file
if flEmail == "" {
flEmail = authconfig.Email
}
}
authconfig.Username = flUser
authconfig.Password = flPassword
authconfig.Email = flEmail
authconfig.ServerAddress = serverAddress
cli.configFile.AuthConfigs[serverAddress] = authconfig
return authconfig, nil
}
func readInput(in io.Reader, out io.Writer) string {
reader := bufio.NewReader(in)
line, _, err := reader.ReadLine()
if err != nil {
fmt.Fprintln(out, err.Error())
os.Exit(1)
}
return string(line)
}