Exemplo n.º 1
0
// NewClient creates and returns a Rackspace client for the given service.
func NewClient(c *cli.Context, serviceType string, logger *logrus.Logger, noCache bool, useServiceNet bool) (*gophercloud.ServiceClient, error) {
	// get the user's authentication credentials
	credsResult, err := Credentials(c, logger)
	if err != nil {
		return nil, err
	}

	logMsg := "Using public endpoint"
	urlType := gophercloud.AvailabilityPublic
	if useServiceNet {
		logMsg = "Using service net endpoint"
		urlType = gophercloud.AvailabilityInternal
	}
	logger.Infoln(logMsg)

	if noCache {
		return authFromScratch(credsResult, serviceType, urlType, logger)
	}

	ao := credsResult.AuthOpts
	region := credsResult.Region

	// form the cache key
	cacheKey := CacheKey(*ao, region, serviceType, urlType)
	// initialize cache
	cache := &Cache{}
	logger.Infof("Looking in the cache for cache key: %s\n", cacheKey)
	// get the value from the cache
	creds, err := cache.Value(cacheKey)
	// if there was an error accessing the cache or there was nothing in the cache,
	// authenticate from scratch
	if err == nil && creds != nil {
		// we successfully retrieved a value from the cache
		logger.Infof("Using token from cache: %s\n", creds.TokenID)
		pc, err := rackspace.NewClient(ao.IdentityEndpoint)
		if err == nil {
			pc.TokenID = creds.TokenID
			pc.ReauthFunc = reauthFunc(pc, *ao)
			pc.UserAgent.Prepend(util.UserAgent)
			pc.HTTPClient = newHTTPClient()
			return &gophercloud.ServiceClient{
				ProviderClient: pc,
				Endpoint:       creds.ServiceEndpoint,
			}, nil
		}
	} else {
		return authFromScratch(credsResult, serviceType, urlType, logger)
	}

	return nil, nil
}
Exemplo n.º 2
0
// NewClient creates and returns a Rackspace client for the given service.
func NewClient(c *cli.Context, serviceType string, logger *logrus.Logger) (*gophercloud.ServiceClient, error) {
	// get the user's authentication credentials
	ao, region, err := Credentials(c, logger)
	if err != nil {
		return nil, err
	}

	if c.GlobalIsSet("no-cache") || c.IsSet("no-cache") {
		return authFromScratch(*ao, region, serviceType, logger)
	}

	// form the cache key
	cacheKey := CacheKey(*ao, region, serviceType)
	// initialize cache
	cache := &Cache{}
	// get the value from the cache
	creds, err := cache.Value(cacheKey)
	// if there was an error accessing the cache or there was nothing in the cache,
	// authenticate from scratch
	if err == nil && creds != nil {
		// we successfully retrieved a value from the cache
		logger.Infof("Using token from cache: %s\n", creds.TokenID)
		pc, err := rackspace.NewClient(ao.IdentityEndpoint)
		if err == nil {
			pc.TokenID = creds.TokenID
			pc.ReauthFunc = reauthFunc(pc, *ao)
			pc.UserAgent.Prepend(util.UserAgent)
			pc.HTTPClient = NewHTTPClient()
			return &gophercloud.ServiceClient{
				ProviderClient: pc,
				Endpoint:       creds.ServiceEndpoint,
			}, nil
		}
	} else {
		return authFromScratch(*ao, region, serviceType, logger)
	}

	return nil, nil
}