oauth2cli

type Config struct {
	// OAuth2 config.
	// RedirectURL will be automatically set to the local server.
	OAuth2Config oauth2.Config
	// Hostname of the redirect URL.
	// You can set this if your provider does not accept localhost.
	// Default to localhost.
	RedirectURLHostname string
	// Options for an authorization request.
	// You can set oauth2.AccessTypeOffline and the PKCE options here.
	AuthCodeOptions []oauth2.AuthCodeOption
	// Options for a token request.
	// You can set the PKCE options here.
	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

	// 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 its URL when the local server 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{})
}