/
token.go
108 lines (98 loc) · 3.18 KB
/
token.go
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/*
* Copyright 2023 InfAI (CC SES)
*
* 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 security
import (
"encoding/json"
"errors"
"github.com/SENERGY-Platform/process-sync/pkg/configuration"
"io"
"log"
"net/http"
"net/url"
"time"
)
func (this *Security) GetAdminToken() (token string, err error) {
if this.openid == nil {
this.openid = &OpenidToken{}
}
duration := time.Since(this.openid.RequestTime).Seconds()
if this.openid.AccessToken != "" && this.openid.ExpiresIn-this.config.AuthExpirationTimeBuffer > duration {
token = "Bearer " + this.openid.AccessToken
return
}
if this.openid.RefreshToken != "" && this.openid.RefreshExpiresIn-this.config.AuthExpirationTimeBuffer > duration {
log.Println("refresh token", this.openid.RefreshExpiresIn, duration)
err = refreshOpenidToken(this.openid, this.config)
if err != nil {
log.Println("WARNING: unable to use refreshtoken", err)
} else {
token = "Bearer " + this.openid.AccessToken
return
}
}
log.Println("get new access token")
err = getOpenidToken(this.openid, this.config)
if err != nil {
log.Println("ERROR: unable to get new access token", err)
this.openid = &OpenidToken{}
}
token = "Bearer " + this.openid.AccessToken
return
}
func getOpenidToken(token *OpenidToken, config configuration.Config) (err error) {
requesttime := time.Now()
resp, err := http.PostForm(config.AuthEndpoint+"/auth/realms/master/protocol/openid-connect/token", url.Values{
"client_id": {config.AuthClientId},
"client_secret": {config.AuthClientSecret},
"grant_type": {"client_credentials"},
})
if err != nil {
log.Println("ERROR: getOpenidToken::PostForm()", err)
return err
}
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
log.Println("ERROR: getOpenidToken()", resp.StatusCode, string(body))
err = errors.New("access denied")
resp.Body.Close()
return
}
err = json.NewDecoder(resp.Body).Decode(token)
token.RequestTime = requesttime
return
}
func refreshOpenidToken(token *OpenidToken, config configuration.Config) (err error) {
requesttime := time.Now()
resp, err := http.PostForm(config.AuthEndpoint+"/auth/realms/master/protocol/openid-connect/token", url.Values{
"client_id": {config.AuthClientId},
"client_secret": {config.AuthClientSecret},
"refresh_token": {token.RefreshToken},
"grant_type": {"refresh_token"},
})
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
log.Println("ERROR: refreshOpenidToken()", resp.StatusCode, string(body))
err = errors.New("access denied")
resp.Body.Close()
return
}
err = json.NewDecoder(resp.Body).Decode(token)
token.RequestTime = requesttime
return
}