oauth2cli

type Config struct {
	// OAuth2 config.
	// If the RedirectURL field is not set, default to http://localhost with the allocated port and LocalServerCallbackPath.
	// If the RedirectURL field is set, make sure it matches the LocalServerBindAddress and LocalServerCallbackPath.
	OAuth2Config oauth2.Config

	// Options for an authorization request.
	// You can set oauth2.AccessTypeOffline or oauth2.S256ChallengeOption.
	AuthCodeOptions []oauth2.AuthCodeOption

	// Options for a token request.
	// You can set oauth2.VerifierOption.
	TokenRequestOptions []oauth2.AuthCodeOption

	// State parameter in the authorization request.
	// Default to a string of random 32 bytes.
	State string

	// Candidates of hostname and port which the local server binds to.
	// You can set port number to 0 to allocate a free port.
	// If multiple addresses are given, it will try the ports in order.
	// If nil or an empty slice is given, it defaults to "127.0.0.1:0" i.e. a free port.
	LocalServerBindAddress []string

	// A PEM-encoded certificate, and possibly the complete certificate chain.
	// When set, the server will serve TLS traffic using the specified
	// certificates. It's recommended that the public key's SANs contain
	// the loopback addresses - 'localhost', '127.0.0.1' and '::1'
	LocalServerCertFile string

	// A PEM-encoded private key for the certificate.
	// This is required when LocalServerCertFile is set.
	LocalServerKeyFile string

	// Callback path of the local server.
	// If your provider requires a specific path of the redirect URL, set this field.
	// Default to none.
	LocalServerCallbackPath string

	// Response HTML body on authorization completed.
	// Default to DefaultLocalServerSuccessHTML.
	LocalServerSuccessHTML string

	// Middleware for the local server.
	// Default to none.
	LocalServerMiddleware func(h http.Handler) http.Handler

	// A channel to send the local server URL when it is ready.
	// Default to none.
	LocalServerReadyChan chan<- string

	// Redirect URL upon successful login
	SuccessRedirectURL string

	// Redirect URL upon failed login
	FailureRedirectURL string

	// Logger function for debug.
	Logf func(format string, args ...interface{})
}