110 lines
2.5 KiB
Go
110 lines
2.5 KiB
Go
package auth
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import (
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"context"
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"fmt"
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"sync"
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"git.loafle.net/commons/configuration-go"
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cdr "git.loafle.net/commons/di-go/registry"
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logging "git.loafle.net/commons/logging-go"
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occn "git.loafle.net/overflow/commons-go/config/noauthprobe"
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occi "git.loafle.net/overflow/commons-go/core/interfaces"
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"git.loafle.net/overflow/probe/auth/annotation"
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"git.loafle.net/overflow/probe/auth/service"
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"git.loafle.net/overflow/probe/config"
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)
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type Authenticator struct {
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authConfig occn.Auth
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services []interface{}
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endChan chan error
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stopChan chan struct{}
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stopWg sync.WaitGroup
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}
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func (a *Authenticator) EndableStart() (<-chan error, error) {
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if a.stopChan != nil {
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return nil, fmt.Errorf("already running. Stop it before starting it again")
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}
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conf := configuration.New()
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if configuration.Exists(config.NoAuthProbeConfigFilePath()) {
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if err := conf.Load(&a.authConfig, config.NoAuthProbeConfigFilePath()); nil != err {
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logging.Logger().Errorf("%s %v", err)
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return nil, fmt.Errorf("loading of auth config file[%s] failed", config.NoAuthProbeConfigFilePath())
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}
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}
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if nil != a.authConfig.DeniedDate {
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return nil, fmt.Errorf("cannot start because this probe have been denied from overFlow at %s", a.authConfig.DeniedDate.String())
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}
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cdr.RegisterResource("AuthConfig", &a.authConfig)
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authDoneChan := make(chan error)
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cdr.RegisterResource("AuthDoneChan", authDoneChan)
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services, err := cdr.GetInstancesByAnnotationType(annotation.AuthRPCServiceAnnotationType)
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if nil != err {
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return nil, err
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}
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a.services = services
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if err := occi.ExecServices(a.services, occi.ServiceMethodInit, service.OrderedServices, false); nil != err {
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return nil, err
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}
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a.endChan = make(chan error)
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a.stopChan = make(chan struct{})
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a.stopWg.Add(1)
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go a.handleAuthenticator(authDoneChan)
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return a.endChan, nil
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}
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func (a *Authenticator) Stop(ctx context.Context) error {
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if a.stopChan == nil {
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return nil
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}
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close(a.stopChan)
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a.stopWg.Wait()
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occi.ExecServices(a.services, occi.ServiceMethodDestroy, service.OrderedServices, true)
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a.stopChan = nil
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close(a.endChan)
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return nil
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}
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func (a *Authenticator) handleAuthenticator(authDoneChan chan error) {
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var err error
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defer func() {
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a.stopWg.Done()
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a.endChan <- err
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}()
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err = occi.ExecServices(a.services, occi.ServiceMethodStart, service.OrderedServices, false)
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if nil != err {
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return
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}
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LOOP:
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for {
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select {
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case err = <-authDoneChan:
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break LOOP
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case <-a.stopChan:
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break LOOP
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}
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}
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occi.ExecServices(a.services, occi.ServiceMethodStop, service.OrderedServices, true)
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}
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