LDAP: Added reload endpoint for LDAP config (#15470)

* 4843 - Added reload endpoint for LDAP config

closes #4843

* Refactor to make the reload work after master drifted
This commit is contained in:
Samuel 2019-05-03 22:53:07 +10:00 committed by Andrej Ocenas
parent 16d5df1cba
commit 846b9327a5
8 changed files with 90 additions and 37 deletions

17
pkg/api/admin_ldap.go Normal file
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@ -0,0 +1,17 @@
package api
import (
"github.com/grafana/grafana/pkg/services/ldap"
)
func (server *HTTPServer) ReloadLdapCfg() Response {
if !ldap.IsEnabled() {
return Error(400, "LDAP is not enabled", nil)
}
err := ldap.ReloadConfig()
if err != nil {
return Error(500, "Failed to reload ldap config.", err)
}
return Success("Ldap config reloaded")
}

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@ -393,6 +393,7 @@ func (hs *HTTPServer) registerRoutes() {
adminRoute.Post("/provisioning/dashboards/reload", Wrap(hs.AdminProvisioningReloadDasboards))
adminRoute.Post("/provisioning/datasources/reload", Wrap(hs.AdminProvisioningReloadDatasources))
adminRoute.Post("/provisioning/notifications/reload", Wrap(hs.AdminProvisioningReloadNotifications))
adminRoute.Post("/ldap/reload", Wrap(hs.ReloadLdapCfg))
}, reqGrafanaAdmin)
// rendering

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@ -3,12 +3,15 @@ package login
import (
"github.com/grafana/grafana/pkg/models"
LDAP "github.com/grafana/grafana/pkg/services/ldap"
"github.com/grafana/grafana/pkg/util/errutil"
)
var newLDAP = LDAP.New
var readLDAPConfig = LDAP.ReadConfig
var getLDAPConfig = LDAP.GetConfig
var isLDAPEnabled = LDAP.IsEnabled
// loginUsingLdap logs in user using LDAP. It returns whether LDAP is enabled and optional error and query arg will be
// populated with the logged in user if successful.
var loginUsingLdap = func(query *models.LoginUserQuery) (bool, error) {
enabled := isLDAPEnabled()
@ -16,7 +19,10 @@ var loginUsingLdap = func(query *models.LoginUserQuery) (bool, error) {
return false, nil
}
config := readLDAPConfig()
config, err := getLDAPConfig()
if err != nil {
return true, errutil.Wrap("Failed to get LDAP config", err)
}
if len(config.Servers) == 0 {
return true, ErrNoLDAPServers
}

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@ -20,12 +20,12 @@ func TestLdapLogin(t *testing.T) {
ldapLoginScenario("When login", func(sc *ldapLoginScenarioContext) {
sc.withLoginResult(false)
readLDAPConfig = func() *LDAP.Config {
getLDAPConfig = func() (*LDAP.Config, error) {
config := &LDAP.Config{
Servers: []*LDAP.ServerConfig{},
}
return config
return config, nil
}
enabled, err := loginUsingLdap(sc.loginUserQuery)
@ -129,7 +129,7 @@ func ldapLoginScenario(desc string, fn ldapLoginScenarioFunc) {
ldapAuthenticatorMock: mock,
}
readLDAPConfig = func() *LDAP.Config {
getLDAPConfig = func() (*LDAP.Config, error) {
config := &LDAP.Config{
Servers: []*LDAP.ServerConfig{
{
@ -138,7 +138,7 @@ func ldapLoginScenario(desc string, fn ldapLoginScenarioFunc) {
},
}
return config
return config, nil
}
newLDAP = func(server *LDAP.ServerConfig) LDAP.IAuth {
@ -147,7 +147,7 @@ func ldapLoginScenario(desc string, fn ldapLoginScenarioFunc) {
defer func() {
newLDAP = LDAP.New
readLDAPConfig = LDAP.ReadConfig
getLDAPConfig = LDAP.GetConfig
}()
fn(sc)

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@ -22,8 +22,8 @@ const (
)
var (
readLDAPConfig = ldap.ReadConfig
isLDAPEnabled = ldap.IsEnabled
getLDAPConfig = ldap.GetConfig
isLDAPEnabled = ldap.IsEnabled
)
// AuthProxy struct
@ -219,7 +219,10 @@ func (auth *AuthProxy) GetUserIDViaLDAP() (int64, *Error) {
Username: auth.header,
}
config := readLDAPConfig()
config, err := getLDAPConfig()
if err != nil {
return 0, newError("Failed to get LDAP config", nil)
}
if len(config.Servers) == 0 {
return 0, newError("No LDAP servers available", nil)
}

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@ -67,18 +67,18 @@ func TestMiddlewareContext(t *testing.T) {
return true
}
readLDAPConfig = func() *ldap.Config {
getLDAPConfig = func() (*ldap.Config, error) {
config := &ldap.Config{
Servers: []*ldap.ServerConfig{
{},
},
}
return config
return config, nil
}
defer func() {
isLDAPEnabled = ldap.IsEnabled
readLDAPConfig = ldap.ReadConfig
getLDAPConfig = ldap.GetConfig
}()
store := remotecache.NewFakeStore(t)
@ -109,16 +109,16 @@ func TestMiddlewareContext(t *testing.T) {
return true
}
readLDAPConfig = func() *ldap.Config {
getLDAPConfig = func() (*ldap.Config, error) {
config := &ldap.Config{
Servers: []*ldap.ServerConfig{},
}
return config
return config, nil
}
defer func() {
isLDAPEnabled = ldap.IsEnabled
readLDAPConfig = ldap.ReadConfig
getLDAPConfig = ldap.GetConfig
}()
store := remotecache.NewFakeStore(t)

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@ -124,7 +124,7 @@ func (pm *PluginManager) Run(ctx context.Context) error {
}
}
// kil backend plugins
// kill backend plugins
for _, p := range DataSources {
p.Kill()
}

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@ -2,9 +2,11 @@ package ldap
import (
"fmt"
"os"
"sync"
"github.com/BurntSushi/toml"
"github.com/grafana/grafana/pkg/util/errutil"
"golang.org/x/xerrors"
"github.com/grafana/grafana/pkg/log"
m "github.com/grafana/grafana/pkg/models"
@ -56,47 +58,72 @@ type GroupToOrgRole struct {
var config *Config
var logger = log.New("ldap")
// loadingMutex locks the reading of the config so multiple requests for reloading are sequential.
var loadingMutex = &sync.Mutex{}
// IsEnabled checks if ldap is enabled
func IsEnabled() bool {
return setting.LdapEnabled
}
// ReadConfig reads the config if
// ldap is enabled otherwise it will return nil
func ReadConfig() *Config {
// ReloadConfig reads the config from the disc and caches it.
func ReloadConfig() error {
if IsEnabled() == false {
return nil
}
loadingMutex.Lock()
defer loadingMutex.Unlock()
var err error
config, err = readConfig(setting.LdapConfigFile)
return err
}
// GetConfig returns the LDAP config if LDAP is enabled otherwise it returns nil. It returns either cached value of
// the config or it reads it and caches it first.
func GetConfig() (*Config, error) {
if IsEnabled() == false {
return nil, nil
}
// Make it a singleton
if config != nil {
return config
return config, nil
}
config = getConfig(setting.LdapConfigFile)
loadingMutex.Lock()
defer loadingMutex.Unlock()
return config
var err error
config, err = readConfig(setting.LdapConfigFile)
return config, err
}
func getConfig(configFile string) *Config {
func readConfig(configFile string) (*Config, error) {
result := &Config{}
logger.Info("Ldap enabled, reading config file", "file", configFile)
_, err := toml.DecodeFile(configFile, result)
if err != nil {
logger.Crit("Failed to load ldap config file", "error", err)
os.Exit(1)
return nil, errutil.Wrap("Failed to load ldap config file", err)
}
if len(result.Servers) == 0 {
logger.Crit("ldap enabled but no ldap servers defined in config file")
os.Exit(1)
return nil, xerrors.New("ldap enabled but no ldap servers defined in config file")
}
// set default org id
for _, server := range result.Servers {
assertNotEmptyCfg(server.SearchFilter, "search_filter")
assertNotEmptyCfg(server.SearchBaseDNs, "search_base_dns")
err = assertNotEmptyCfg(server.SearchFilter, "search_filter")
if err != nil {
return nil, errutil.Wrap("Failed to validate SearchFilter section", err)
}
err = assertNotEmptyCfg(server.SearchBaseDNs, "search_base_dns")
if err != nil {
return nil, errutil.Wrap("Failed to validate SearchBaseDNs section", err)
}
for _, groupMap := range server.Groups {
if groupMap.OrgId == 0 {
@ -105,22 +132,21 @@ func getConfig(configFile string) *Config {
}
}
return result
return result, nil
}
func assertNotEmptyCfg(val interface{}, propName string) {
func assertNotEmptyCfg(val interface{}, propName string) error {
switch v := val.(type) {
case string:
if v == "" {
logger.Crit("LDAP config file is missing option", "option", propName)
os.Exit(1)
return xerrors.Errorf("LDAP config file is missing option: %v", propName)
}
case []string:
if len(v) == 0 {
logger.Crit("LDAP config file is missing option", "option", propName)
os.Exit(1)
return xerrors.Errorf("LDAP config file is missing option: %v", propName)
}
default:
fmt.Println("unknown")
}
return nil
}