metadata

const (
	// APIKEY is used for access to APIs that don't need OAuth 2.0.
	APIKEY = "apikey"

	// COOKIESALT, CLIENT_ID, and CLIENT_SECRET are used for login.
	COOKIESALT    = "cookiesalt"
	CLIENT_ID     = "client_id"
	CLIENT_SECRET = "client_secret"

	// GMAIL_CACHED_TOKEN, GMAIL_CLIENT_ID, and GMAIL_CLIENT_SECRET are used for sending mail
	// from alerts@skia.org.
	GMAIL_CACHED_TOKEN          = "gmail_cached_token"
	GMAIL_CACHED_TOKEN_AUTOROLL = "gmail_cached_token_autoroll"
	GMAIL_CLIENT_ID             = "gmail_clientid"
	GMAIL_CLIENT_SECRET         = "gmail_clientsecret"

	// METADATA_PATH_PREFIX_TMPL is the template for the first part of the
	// metadata URL. The placeholder is for the level ("instance" or
	// "project").
	METADATA_PATH_PREFIX_TMPL = "/computeMetadata/v1/%s"

	// METADATA_SUB_URL_TMPL is the URL template for metadata. The
	// placeholders are for the level ("instance" or "project") and the
	// metadata key.
	METADATA_SUB_URL_TMPL = METADATA_PATH_PREFIX_TMPL + "/attributes/%s"

	// METADATA_URL_PREFIX is the prefix of the metadata URL.
	METADATA_URL_PREFIX = "http://metadata"

	// METADATA_URL is the URL template for metadata. The placeholders are
	// for the level ("instance" or "project") and the metadata key.
	METADATA_URL = METADATA_URL_PREFIX + METADATA_SUB_URL_TMPL

	// WEBHOOK_REQUEST_SALT is used to authenticate webhook requests. The value stored in
	// Metadata is base64-encoded.
	// Value created 2015-08-10 with
	// dd if=/dev/random iflag=fullblock bs=64 count=1 | base64 -w 0
	WEBHOOK_REQUEST_SALT = "webhook_request_salt"

	// JWT_SERVICE_ACCOUNT is the JSON formatted service account.
	JWT_SERVICE_ACCOUNT = "jwt_service_account"

	// NSQ_TEST_SERVER refers to a test server in GCE which runs NSQ for testing purposes.
	NSQ_TEST_SERVER = "nsq-test-server"

	// Metadata levels.
	LEVEL_INSTANCE = "instance"
	LEVEL_PROJECT  = "project"

	// The "Metadata-Flavor: Google" header must be set for HTTP requests
	// to the metadata server.
	HEADER_MD_FLAVOR_KEY = "Metadata-Flavor"
	HEADER_MD_FLAVOR_VAL = "Google"
)