109 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			109 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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   Copyright The containerd Authors.
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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*/
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package commands
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import (
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	"bufio"
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	gocontext "context"
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	"crypto/tls"
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	"fmt"
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	"net"
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	"net/http"
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	"strings"
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	"time"
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	"github.com/containerd/console"
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	"github.com/containerd/containerd/remotes"
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	"github.com/containerd/containerd/remotes/docker"
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	"github.com/pkg/errors"
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	"github.com/urfave/cli"
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)
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// PushTracker returns a new InMemoryTracker which tracks the ref status
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var PushTracker = docker.NewInMemoryTracker()
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func passwordPrompt() (string, error) {
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	c := console.Current()
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	defer c.Reset()
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	if err := c.DisableEcho(); err != nil {
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		return "", errors.Wrap(err, "failed to disable echo")
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	}
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	line, _, err := bufio.NewReader(c).ReadLine()
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	if err != nil {
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		return "", errors.Wrap(err, "failed to read line")
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	}
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	return string(line), nil
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}
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// GetResolver prepares the resolver from the environment and options
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func GetResolver(ctx gocontext.Context, clicontext *cli.Context) (remotes.Resolver, error) {
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	username := clicontext.String("user")
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	var secret string
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	if i := strings.IndexByte(username, ':'); i > 0 {
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		secret = username[i+1:]
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		username = username[0:i]
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	}
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	options := docker.ResolverOptions{
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		PlainHTTP: clicontext.Bool("plain-http"),
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		Tracker:   PushTracker,
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	}
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	if username != "" {
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		if secret == "" {
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			fmt.Printf("Password: ")
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			var err error
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			secret, err = passwordPrompt()
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			if err != nil {
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				return nil, err
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			}
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			fmt.Print("\n")
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		}
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	} else if rt := clicontext.String("refresh"); rt != "" {
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		secret = rt
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	}
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	options.Credentials = func(host string) (string, string, error) {
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		// Only one host
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		return username, secret, nil
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	}
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	tr := &http.Transport{
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		Proxy: http.ProxyFromEnvironment,
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		DialContext: (&net.Dialer{
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			Timeout:   30 * time.Second,
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			KeepAlive: 30 * time.Second,
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			DualStack: true,
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		}).DialContext,
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		MaxIdleConns:        10,
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		IdleConnTimeout:     30 * time.Second,
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		TLSHandshakeTimeout: 10 * time.Second,
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		TLSClientConfig: &tls.Config{
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			InsecureSkipVerify: clicontext.Bool("insecure"),
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		},
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		ExpectContinueTimeout: 5 * time.Second,
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	}
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	options.Client = &http.Client{
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		Transport: tr,
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	}
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	return docker.NewResolver(options), nil
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}
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