133 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			133 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package ak
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import (
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	"context"
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	"fmt"
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	"math/rand"
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	"net/http"
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	"net/url"
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	"time"
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	"github.com/go-openapi/strfmt"
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	"github.com/google/uuid"
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	"github.com/pkg/errors"
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	"github.com/recws-org/recws"
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	"goauthentik.io/api"
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	"goauthentik.io/internal/constants"
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	log "github.com/sirupsen/logrus"
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)
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const ConfigLogLevel = "log_level"
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const ConfigErrorReportingEnabled = "error_reporting_enabled"
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const ConfigErrorReportingEnvironment = "error_reporting_environment"
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// APIController main controller which connects to the authentik api via http and ws
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type APIController struct {
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	Client       *api.APIClient
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	Outpost      api.Outpost
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	GlobalConfig api.Config
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	Server Outpost
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	token string
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	logger *log.Entry
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	reloadOffset time.Duration
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	wsConn       *recws.RecConn
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	instanceUUID uuid.UUID
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}
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// NewAPIController initialise new API Controller instance from URL and API token
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func NewAPIController(akURL url.URL, token string) *APIController {
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	config := api.NewConfiguration()
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	config.UserAgent = constants.OutpostUserAgent()
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	config.Host = akURL.Host
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	config.Scheme = akURL.Scheme
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	config.HTTPClient = &http.Client{
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		Transport: NewTracingTransport(GetTLSTransport()),
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	}
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	config.AddDefaultHeader("Authorization", fmt.Sprintf("Bearer %s", token))
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	// create the API client, with the transport
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	apiClient := api.NewAPIClient(config)
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	log := log.WithField("logger", "authentik.outpost.ak-api-controller")
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	// Because we don't know the outpost UUID, we simply do a list and pick the first
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	// The service account this token belongs to should only have access to a single outpost
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	outposts, _, err := apiClient.OutpostsApi.OutpostsInstancesList(context.Background()).Execute()
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	if err != nil {
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		log.WithError(err).Error("Failed to fetch outpost configuration")
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		return nil
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	}
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	outpost := outposts.Results[0]
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	doGlobalSetup(outpost.Config)
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	log.WithField("name", outpost.Name).Debug("Fetched outpost configuration")
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	akConfig, _, err := apiClient.RootApi.RootConfigRetrieve(context.Background()).Execute()
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	if err != nil {
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		log.WithError(err).Error("Failed to fetch global configuration")
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		return nil
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	}
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	log.Debug("Fetched global configuration")
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	ac := &APIController{
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		Client:       apiClient,
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		GlobalConfig: akConfig,
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		token:  token,
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		logger: log,
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		reloadOffset: time.Duration(rand.Intn(10)) * time.Second,
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		instanceUUID: uuid.New(),
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		Outpost:      outpost,
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	}
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	ac.logger.Debugf("HA Reload offset: %s", ac.reloadOffset)
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	ac.initWS(akURL, strfmt.UUID(outpost.Pk))
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	return ac
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}
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// Start Starts all handlers, non-blocking
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func (a *APIController) Start() error {
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	err := a.StartBackgorundTasks()
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	if err != nil {
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		return err
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	}
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	go func() {
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		err := a.Server.Start()
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		if err != nil {
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			panic(err)
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		}
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	}()
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	return nil
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}
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func (a *APIController) StartBackgorundTasks() error {
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	err := a.Server.Refresh()
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	if err != nil {
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		return errors.Wrap(err, "failed to run initial refresh")
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	}
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	go func() {
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		a.logger.Debug("Starting WS Handler...")
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		a.startWSHandler()
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	}()
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	go func() {
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		a.logger.Debug("Starting WS Health notifier...")
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		a.startWSHealth()
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	}()
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	go func() {
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		a.logger.Debug("Starting Interval updater...")
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		a.startIntervalUpdater()
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	}()
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	go func() {
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		a.logger.Debug("Starting periodical timer...")
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		a.startPeriodicalTasks()
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	}()
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	return nil
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}
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