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site_cert_account.go
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/
site_cert_account.go
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// Copyright 2023 The casbin Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package object
import (
"crypto"
"fmt"
"github.com/beego/beego"
"github.com/casbin/caswaf/proxy"
"github.com/casbin/lego/v4/acme"
"github.com/casbin/lego/v4/certcrypto"
"github.com/casbin/lego/v4/lego"
"github.com/casbin/lego/v4/registration"
)
type Account struct {
Email string
Registration *registration.Resource
key crypto.PrivateKey
}
// GetEmail returns the email address for the account.
func (a *Account) GetEmail() string {
return a.Email
}
// GetPrivateKey returns the private RSA account key.
func (a *Account) GetPrivateKey() crypto.PrivateKey {
return a.key
}
// GetRegistration returns the server registration.
func (a *Account) GetRegistration() *registration.Resource {
return a.Registration
}
func getLegoClientAndAccount(email string, privateKey string, devMode bool, useProxy bool) (*lego.Client, *Account, error) {
eccKey, err := decodeEccKey(privateKey)
if err != nil {
return nil, nil, err
}
account := &Account{
Email: email,
key: eccKey,
}
config := lego.NewConfig(account)
if devMode {
config.CADirURL = lego.LEDirectoryStaging
} else {
config.CADirURL = lego.LEDirectoryProduction
}
config.Certificate.KeyType = certcrypto.RSA2048
if useProxy {
config.HTTPClient = proxy.ProxyHttpClient
} else {
config.HTTPClient = proxy.DefaultHttpClient
}
client, err := lego.NewClient(config)
if err != nil {
return nil, nil, err
}
return client, account, nil
}
func getAcmeClient(email string, privateKey string, devMode bool, useProxy bool) (*lego.Client, error) {
// Create a user. New accounts need an email and private key to start.
client, account, err := getLegoClientAndAccount(email, privateKey, devMode, useProxy)
if err != nil {
return nil, err
}
// try to obtain an account based on the private key
account.Registration, err = client.Registration.ResolveAccountByKey()
if err != nil {
acmeError, ok := err.(*acme.ProblemDetails)
if !ok {
return nil, err
}
if acmeError.Type != "urn:ietf:params:acme:error:accountDoesNotExist" {
panic(acmeError)
}
// Failed to get account, so create an account based on the private key.
account.Registration, err = client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
if err != nil {
return nil, err
}
}
return client, nil
}
func GetAcmeClient(useProxy bool) (*lego.Client, error) {
acmeEmail := beego.AppConfig.String("acmeEmail")
acmePrivateKey := beego.AppConfig.String("acmePrivateKey")
if acmeEmail == "" {
return nil, fmt.Errorf("acmeEmail should not be empty")
}
if acmePrivateKey == "" {
return nil, fmt.Errorf("acmePrivateKey should not be empty")
}
return getAcmeClient(acmeEmail, acmePrivateKey, false, useProxy)
}