lego/cli_handlers.go

package main

import (
	"bufio"
	"io/ioutil"
	"os"
	"path"
	"strings"

	"github.com/codegangsta/cli"
	"github.com/xenolf/lego/acme"
)

func checkFolder(path string) error {
	if _, err := os.Stat(path); os.IsNotExist(err) {
		return os.MkdirAll(path, 0700)
	}
	return nil
}

func run(c *cli.Context) {
	err := checkFolder(c.GlobalString("path"))
	if err != nil {
		logger().Fatalf("Cound not check/create path: %v", err)
	}

	conf := NewConfiguration(c)

	//TODO: move to account struct? Currently MUST pass email.
	if !c.GlobalIsSet("email") {
		logger().Fatal("You have to pass an account (email address) to the program using --email or -m")
	}

	acc := NewAccount(c.GlobalString("email"), conf)
	client := acme.NewClient(c.GlobalString("server"), acc, conf.RsaBits(), conf.OptPort())
	if acc.Registration == nil {
		reg, err := client.Register()
		if err != nil {
			logger().Fatalf("Could not complete registration\n\t%v", err)
		}

		acc.Registration = reg
		acc.Save()

		logger().Print("!!!! HEADS UP !!!!")
		logger().Printf(`
			Your account credentials have been saved in your Let's Encrypt
			configuration directory at "%s".
			You should make a secure backup	of this folder now. This
			configuration directory will also contain certificates and
			private keys obtained from Let's Encrypt so making regular
			backups of this folder is ideal.`, c.GlobalString("config-dir"))

	}

	if acc.Registration.Body.Agreement == "" {
		if !c.GlobalBool("agree-tos") {
			reader := bufio.NewReader(os.Stdin)
			logger().Printf("Please review the TOS at %s", acc.Registration.TosURL)

			for {
				logger().Println("Do you accept the TOS? Y/n")
				text, err := reader.ReadString('\n')
				if err != nil {
					logger().Fatalf("Could not read from console -> %v", err)
				}

				text = strings.Trim(text, "\r\n")

				if text == "n" {
					logger().Fatal("You did not accept the TOS. Unable to proceed.")
				}

				if text == "Y" || text == "y" || text == "" {
					err = client.AgreeToTos()
					if err != nil {
						logger().Fatalf("Could not agree to tos -> %v", err)
					}
					acc.Save()
					break
				}

				logger().Println("Your input was invalid. Please answer with one of Y/y, n or by pressing enter.")
			}
		}
	}

	if !c.GlobalIsSet("domains") {
		logger().Fatal("Please specify --domains")
	}

	certs, err := client.ObtainCertificates(c.GlobalStringSlice("domains"))
	if err != nil {
		logger().Fatalf("Could not obtain certificates\n\t%v", err)
	}

	err = checkFolder(conf.CertPath())
	if err != nil {
		logger().Fatalf("Cound not check/create path: %v", err)
	}

	for _, certRes := range certs {
		certOut := path.Join(conf.CertPath(), certRes.Domain+".crt")
		privOut := path.Join(conf.CertPath(), certRes.Domain+".key")

		err = ioutil.WriteFile(certOut, certRes.Certificate, 0700)
		if err != nil {
			logger().Printf("Unable to save Certificate for domain %s\n\t%v", certRes.Domain, err)
		}

		err = ioutil.WriteFile(privOut, certRes.PrivateKey, 0700)
		if err != nil {
			logger().Printf("Unable to save PrivateKey for domain %s\n\t%v", certRes.Domain, err)
		}

	}
}