forked from TrueCloudLab/lego
128 lines
3 KiB
Go
128 lines
3 KiB
Go
package cmd
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import (
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"crypto/x509"
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"encoding/pem"
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"fmt"
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"os"
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"strings"
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"time"
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"github.com/go-acme/lego/v4/certcrypto"
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"github.com/go-acme/lego/v4/lego"
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"github.com/go-acme/lego/v4/log"
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"github.com/go-acme/lego/v4/registration"
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"github.com/urfave/cli/v2"
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)
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const filePerm os.FileMode = 0o600
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func setup(ctx *cli.Context, accountsStorage *AccountsStorage) (*Account, *lego.Client) {
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keyType := getKeyType(ctx)
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privateKey := accountsStorage.GetPrivateKey(keyType)
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var account *Account
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if accountsStorage.ExistsAccountFilePath() {
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account = accountsStorage.LoadAccount(privateKey)
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} else {
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account = &Account{Email: accountsStorage.GetUserID(), key: privateKey}
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}
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client := newClient(ctx, account, keyType)
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return account, client
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}
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func newClient(ctx *cli.Context, acc registration.User, keyType certcrypto.KeyType) *lego.Client {
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config := lego.NewConfig(acc)
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config.CADirURL = ctx.String("server")
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config.Certificate = lego.CertificateConfig{
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KeyType: keyType,
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Timeout: time.Duration(ctx.Int("cert.timeout")) * time.Second,
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}
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config.UserAgent = fmt.Sprintf("lego-cli/%s", ctx.App.Version)
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if ctx.IsSet("http-timeout") {
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config.HTTPClient.Timeout = time.Duration(ctx.Int("http-timeout")) * time.Second
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}
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client, err := lego.NewClient(config)
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if err != nil {
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log.Fatalf("Could not create client: %v", err)
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}
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if client.GetExternalAccountRequired() && !ctx.IsSet("eab") {
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log.Fatal("Server requires External Account Binding. Use --eab with --kid and --hmac.")
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}
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return client
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}
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// getKeyType the type from which private keys should be generated.
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func getKeyType(ctx *cli.Context) certcrypto.KeyType {
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keyType := ctx.String("key-type")
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switch strings.ToUpper(keyType) {
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case "RSA2048":
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return certcrypto.RSA2048
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case "RSA4096":
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return certcrypto.RSA4096
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case "RSA8192":
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return certcrypto.RSA8192
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case "EC256":
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return certcrypto.EC256
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case "EC384":
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return certcrypto.EC384
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}
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log.Fatalf("Unsupported KeyType: %s", keyType)
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return ""
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}
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func getEmail(ctx *cli.Context) string {
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email := ctx.String("email")
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if email == "" {
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log.Fatal("You have to pass an account (email address) to the program using --email or -m")
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}
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return email
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}
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func createNonExistingFolder(path string) error {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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return os.MkdirAll(path, 0o700)
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} else if err != nil {
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return err
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}
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return nil
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}
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func readCSRFile(filename string) (*x509.CertificateRequest, error) {
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bytes, err := os.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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raw := bytes
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// see if we can find a PEM-encoded CSR
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var p *pem.Block
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rest := bytes
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for {
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// decode a PEM block
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p, rest = pem.Decode(rest)
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// did we fail?
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if p == nil {
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break
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}
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// did we get a CSR?
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if p.Type == "CERTIFICATE REQUEST" || p.Type == "NEW CERTIFICATE REQUEST" {
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raw = p.Bytes
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}
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}
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// no PEM-encoded CSR
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// assume we were given a DER-encoded ASN.1 CSR
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// (if this assumption is wrong, parsing these bytes will fail)
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return x509.ParseCertificateRequest(raw)
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}
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