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v2ray-core/common/errors/errors.go

120 lines
2.2 KiB

package errors
import (
"fmt"
)
func HasCode(err error, code int) bool {
if errWithCode, ok := err.(ErrorWithCode); ok {
return errWithCode.Code() == code
}
return false
}
type ErrorWithCode interface {
error
Code() int
}
type ErrorCode int
func (code ErrorCode) Code() int {
return int(code)
}
func (code ErrorCode) Prefix() string {
return fmt.Sprintf("[Error 0x%04X] ", code.Code())
}
type AuthenticationError struct {
ErrorCode
AuthDetail interface{}
}
func NewAuthenticationError(detail interface{}) AuthenticationError {
return AuthenticationError{
ErrorCode: 1,
AuthDetail: detail,
}
}
func (err AuthenticationError) Error() string {
return fmt.Sprintf("%sInvalid auth %v", err.Prefix(), err.AuthDetail)
}
type ProtocolVersionError struct {
ErrorCode
Version int
}
func NewProtocolVersionError(version int) ProtocolVersionError {
return ProtocolVersionError{
ErrorCode: 2,
Version: version,
}
}
func (err ProtocolVersionError) Error() string {
return fmt.Sprintf("%sInvalid version %d", err.Prefix(), err.Version)
}
type CorruptedPacketError struct {
ErrorCode
}
var corruptedPacketErrorInstance = CorruptedPacketError{ErrorCode: 3}
func NewCorruptedPacketError() CorruptedPacketError {
return corruptedPacketErrorInstance
}
func (err CorruptedPacketError) Error() string {
return err.Prefix() + "Corrupted packet."
}
type IPFormatError struct {
ErrorCode
IP []byte
}
func NewIPFormatError(ip []byte) IPFormatError {
return IPFormatError{
ErrorCode: 4,
IP: ip,
}
}
func (err IPFormatError) Error() string {
return fmt.Sprintf("%sInvalid IP %v", err.Prefix(), err.IP)
}
type ConfigurationError struct {
ErrorCode
}
var configurationErrorInstance = ConfigurationError{ErrorCode: 5}
func NewConfigurationError() ConfigurationError {
return configurationErrorInstance
}
func (r ConfigurationError) Error() string {
return r.Prefix() + "Invalid configuration."
}
type InvalidOperationError struct {
ErrorCode
Operation string
}
func NewInvalidOperationError(operation string) InvalidOperationError {
return InvalidOperationError{
ErrorCode: 6,
Operation: operation,
}
}
func (r InvalidOperationError) Error() string {
return r.Prefix() + "Invalid operation: " + r.Operation
}