forked from Deuxfleurs/bottin
Externalize config
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611d182907
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c1f0247586
3 changed files with 120 additions and 34 deletions
16
README.md
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16
README.md
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@ -0,0 +1,16 @@
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## ACL examples
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```
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// Anybody (before binding) can bind to an entity under ou=users,dc=gobottin,dc=eu
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"ANONYMOUS::bind:*,ou=users,dc=gobottin,dc=eu:",
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// Anybody (before binding) can bind to the specific admin entity
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"ANONYMOUS::bind:cn=admin,dc=gobottin,dc=eu:",
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// Anybody who is logged in can read anything that is not a userpassword attribute
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"*,dc=gobottin,dc=eu::read:*:* !userpassword",
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// Anybody can read and modify anything from their own entry
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"*::read modify:SELF:*",
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// The admin can read, add, modify, delete anything
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"cn=admin,dc=gobottin,dc=eu::read add modify delete:*:*",
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// Members of the admin group can read, add, modify, delete anything
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"*:cn=admin,ou=groups,dc=gobottin,dc=eu:read add modify delete:*:*"
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```
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13
config.json
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13
config.json
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@ -0,0 +1,13 @@
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{
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"suffix": "dc=gobottin,dc=eu",
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"bind_address": "127.0.0.1:10389",
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"acl": [
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"ANONYMOUS::bind:*,ou=users,dc=gobottin,dc=eu:",
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"ANONYMOUS::bind:cn=admin,dc=gobottin,dc=eu:",
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"*,dc=gobottin,dc=eu::read:*:* !userpassword",
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"*::read modify:SELF:*",
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"cn=admin,dc=gobottin,dc=eu::read add modify delete:*:*",
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"*:cn=admin,ou=groups,dc=gobottin,dc=eu:read add modify delete:*:*"
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]
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}
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117
main.go
117
main.go
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@ -1,14 +1,15 @@
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package main
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// @FIXME: Implement a real permission system: limit read/write scope/attributes, possibly based on group membership
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// @FIXME: Implement missing search filters (in applyFilter)
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// @FIXME: Add an initial prefix to the consul key value
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// @FIXME: Add TLS connections
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import (
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"crypto/tls"
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"encoding/base64"
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"math/rand"
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"os"
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@ -21,9 +22,24 @@ import (
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message "github.com/vjeantet/goldap/message"
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)
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type ConfigFile struct {
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Suffix string `json:"suffix"`
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BindAddress string `json:"bind_address"`
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ConsulHost string `json:"consul_host"`
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Acl []string `json:"acl"`
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SSLCertFile string `json:"ssl_cert_file"`
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SSLKeyFile string `json:"ssl_key_file"`
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SSLServerName string `json:"ssl_server_name"`
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}
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type Config struct {
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Suffix string
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BindAddress string
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ConsulHost string
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Acl ACL
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TlsConfig *tls.Config
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}
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type Server struct {
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@ -37,42 +53,77 @@ type State struct {
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type Entry map[string][]string
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func main() {
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//ldap logger
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ldap.Logger = log.New(os.Stdout, "[server] ", log.LstdFlags)
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var configFlag = flag.String("config", "./config.json", "Configuration file path")
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// Connect to Consul
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client, err := consul.NewClient(consul.DefaultConfig())
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if err != nil {
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panic(err)
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func readConfig() Config {
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config_file := ConfigFile{
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BindAddress: "0.0.0.0:389",
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}
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kv := client.KV()
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aclStr := []string{
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// Anybody (before binding) can bind to an entity under ou=users,dc=gobottin,dc=eu
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"ANONYMOUS::bind:*,ou=users,dc=gobottin,dc=eu:",
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// Anybody (before binding) can bind to the specific admin entity
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"ANONYMOUS::bind:cn=admin,dc=gobottin,dc=eu:",
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// Anybody who is logged in can read anything that is not a userpassword attribute
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"*,dc=gobottin,dc=eu::read:*:* !userpassword",
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// Anybody can read and modify anything from their own entry
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"*::read modify:SELF:*",
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// The admin can read, add, modify, delete anything
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"cn=admin,dc=gobottin,dc=eu::read add modify delete:*:*",
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// Members of the admin group can read, add, modify, delete anything
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"*:cn=admin,ou=groups,dc=gobottin,dc=eu:read add modify delete:*:*",
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}
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acl, err := ParseACL(aclStr)
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bytes, err := ioutil.ReadFile(*configFlag)
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if err != nil {
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panic(err)
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}
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// TODO read config from somewhere
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config := Config{
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Suffix: "dc=gobottin,dc=eu",
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err = json.Unmarshal(bytes, &config_file)
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if err != nil {
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panic(err)
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}
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acl, err := ParseACL(config_file.Acl)
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if err != nil {
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panic(err)
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}
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ret := Config{
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Suffix: config_file.Suffix,
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BindAddress: config_file.BindAddress,
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ConsulHost: config_file.ConsulHost,
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Acl: acl,
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}
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if config_file.SSLCertFile != "" && config_file.SSLKeyFile != "" && config_file.SSLServerName != "" {
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cert_txt, err := ioutil.ReadFile(config_file.SSLCertFile)
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if err != nil {
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panic(err)
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}
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key_txt, err := ioutil.ReadFile(config_file.SSLKeyFile)
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if err != nil {
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panic(err)
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}
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cert, err := tls.X509KeyPair(cert_txt, key_txt)
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if err != nil {
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panic(err)
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}
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ret.TlsConfig = &tls.Config{
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MinVersion: tls.VersionSSL30,
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MaxVersion: tls.VersionTLS12,
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Certificates: []tls.Certificate{cert},
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ServerName: config_file.SSLServerName,
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}
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}
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return ret
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}
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func main() {
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ldap.Logger = log.New(os.Stdout, "[server] ", log.LstdFlags)
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config := readConfig()
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// Connect to Consul
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consul_config := consul.DefaultConfig()
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if config.ConsulHost != "" {
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consul_config.Address = config.ConsulHost
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}
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consul_client, err := consul.NewClient(consul_config)
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if err != nil {
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panic(err)
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}
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kv := consul_client.KV()
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// Create gobottin server
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gobottin := Server{config: config, kv: kv}
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err = gobottin.init()
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if err != nil {
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@ -99,8 +150,14 @@ func main() {
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routes.Modify(gobottin.handleModify)
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ldapserver.Handle(routes)
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// listen on 10389
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go ldapserver.ListenAndServe("127.0.0.1:10389")
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if config.TlsConfig != nil {
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secureConn := func(s *ldap.Server) {
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s.Listener = tls.NewListener(s.Listener, config.TlsConfig)
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}
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go ldapserver.ListenAndServe(config.BindAddress, secureConn)
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} else {
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go ldapserver.ListenAndServe(config.BindAddress)
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}
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// When CTRL+C, SIGINT and SIGTERM signal occurs
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// Then stop server gracefully
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