85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
/*
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Copyright 2019 The KubeSphere 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 ldap
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import (
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"flag"
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"github.com/go-ldap/ldap"
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"github.com/golang/glog"
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"log"
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"sync"
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)
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var (
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once sync.Once
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pool Pool
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ldapHost string
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ManagerDN string
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ManagerPassword string
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UserSearchBase string
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GroupSearchBase string
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poolSize int
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)
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func init() {
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flag.StringVar(&ldapHost, "ldap-server", "localhost:389", "ldap server host")
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flag.StringVar(&ManagerDN, "ldap-manager-dn", "cn=admin,dc=example,dc=org", "ldap manager dn")
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flag.StringVar(&ManagerPassword, "ldap-manager-password", "admin", "ldap manager password")
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flag.StringVar(&UserSearchBase, "ldap-user-search-base", "ou=Users,dc=example,dc=org", "ldap user search base")
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flag.StringVar(&GroupSearchBase, "ldap-group-search-base", "ou=Groups,dc=example,dc=org", "ldap group search base")
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flag.IntVar(&poolSize, "ldap-pool-size", 64, "ldap connection pool size")
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}
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func ldapClientPool() Pool {
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once.Do(func() {
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var err error
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pool, err = NewChannelPool(8, poolSize, "kubesphere", func(s string) (ldap.Client, error) {
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conn, err := ldap.Dial("tcp", ldapHost)
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if err != nil {
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return nil, err
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}
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return conn, nil
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}, []uint16{ldap.LDAPResultTimeLimitExceeded, ldap.ErrorNetwork})
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if err != nil {
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log.Fatalln(err)
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}
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})
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return pool
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}
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func Client() (ldap.Client, error) {
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conn, err := ldapClientPool().Get()
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if err != nil {
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glog.Errorln("get ldap connection from pool", err)
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return nil, err
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}
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err = conn.Bind(ManagerDN, ManagerPassword)
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if err != nil {
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conn.Close()
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glog.Errorln("bind manager dn", err)
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return nil, err
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}
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return conn, nil
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}
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