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error.go
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error.go
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package authentication
import (
"fmt"
"unicode"
universal "github.com/teslamotors/vehicle-command/pkg/protocol/protobuf/universalmessage"
)
const (
errCodeOk = universal.MessageFault_E_MESSAGEFAULT_ERROR_NONE
errCodeBusy = universal.MessageFault_E_MESSAGEFAULT_ERROR_BUSY
errCodeTimeout = universal.MessageFault_E_MESSAGEFAULT_ERROR_TIMEOUT
errCodeUnknownKey = universal.MessageFault_E_MESSAGEFAULT_ERROR_UNKNOWN_KEY_ID
errCodeInactiveKey = universal.MessageFault_E_MESSAGEFAULT_ERROR_INACTIVE_KEY
errCodeInvalidSignature = universal.MessageFault_E_MESSAGEFAULT_ERROR_INVALID_SIGNATURE
errCodeInvalidToken = universal.MessageFault_E_MESSAGEFAULT_ERROR_INVALID_TOKEN_OR_COUNTER
errCodeForbidden = universal.MessageFault_E_MESSAGEFAULT_ERROR_INSUFFICIENT_PRIVILEGES
errCodeInvalidDomain = universal.MessageFault_E_MESSAGEFAULT_ERROR_INVALID_DOMAINS
errCodeInvalidCommand = universal.MessageFault_E_MESSAGEFAULT_ERROR_INVALID_COMMAND
errCodeDecoding = universal.MessageFault_E_MESSAGEFAULT_ERROR_DECODING
errCodeInternal = universal.MessageFault_E_MESSAGEFAULT_ERROR_INTERNAL
errCodeWrongPerso = universal.MessageFault_E_MESSAGEFAULT_ERROR_WRONG_PERSONALIZATION
errCodeBadParameter = universal.MessageFault_E_MESSAGEFAULT_ERROR_BAD_PARAMETER
errCodeKeychainFull = universal.MessageFault_E_MESSAGEFAULT_ERROR_KEYCHAIN_IS_FULL
errCodeExpired = universal.MessageFault_E_MESSAGEFAULT_ERROR_TIME_EXPIRED
errCodeInvalidEpoch = universal.MessageFault_E_MESSAGEFAULT_ERROR_INCORRECT_EPOCH
)
// errCodeString returns a CamelCase error string for code.
func errCodeString(code universal.MessageFault_E) string {
// "MESSAGEFAULT_ERROR_INCORRECT_EPOCH" -> "IncorrectEpoch"
const prefix = "MESSAGEFAULT_ERROR_"
allCaps := code.String()[len(prefix)-1:]
camelCase := make([]rune, 0, len(allCaps))
lowerCaseNext := false
for _, b := range allCaps {
if b == '_' {
lowerCaseNext = false
} else {
if lowerCaseNext {
camelCase = append(camelCase, unicode.ToLower(b))
} else {
camelCase = append(camelCase, b)
lowerCaseNext = true
}
}
}
return string(camelCase)
}
// Error represents a protocol-layer error.
type Error struct {
Code universal.MessageFault_E
Info string
}
func newError(code universal.MessageFault_E, info string) error {
return &Error{code, info}
}
func (e Error) Error() string {
if e.Info == "" {
return errCodeString(e.Code)
}
return fmt.Sprintf("%s: %s", errCodeString(e.Code), e.Info)
}