1f349/twofactor
4
0
Fork 0
mirror of https://github.com/1f349/twofactor.git synced 2024-12-21 23:14:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

made const and vars private

Browse Source
This commit is contained in:
silenteh 2015-08-04 16:58:48 +02:00
parent f4058aa3ac
commit 73ce7eaf59
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
totp.go
View File

@ -21,18 +21,18 @@ import (
)
const (
BACKOFF_MINUTES = 5 // this is the time to wait before verifying another token
MAX_FAILURES = 3 // total amount of failures, after that the user needs to wait for the backoff time
COUNTER_SIZE = 8 // this is defined in the RFC 4226
backoff_minutes = 5 // this is the time to wait before verifying another token
max_failures = 3 // total amount of failures, after that the user needs to wait for the backoff time
counter_size = 8 // this is defined in the RFC 4226
)
var (
INITIALIZATION_FAILED = errors.New("Totp has not been initialized correctly")
initialization_failed_error = errors.New("Totp has not been initialized correctly")
)
type Totp struct {
key []byte // this is the secret key
counter [COUNTER_SIZE]byte // this is the counter used to synchronize with the client device
counter [counter_size]byte // this is the counter used to synchronize with the client device
digits int // total amount of digits of the code displayed on the device
issuer string // the company which issues the 2FA
account string // usually the suer email or the account id
@ -125,11 +125,11 @@ func (otp *Totp) Validate(userCode string) error {
}
// check against the total amount of failures
if otp.totalVerificationFailures >= MAX_FAILURES && !validBackoffTime(otp.lastVerificationTime) {
if otp.totalVerificationFailures >= max_failures && !validBackoffTime(otp.lastVerificationTime) {
return errors.New("The verification is locked down, because of too many trials.")
}
if otp.totalVerificationFailures >= MAX_FAILURES && validBackoffTime(otp.lastVerificationTime) {
if otp.totalVerificationFailures >= max_failures && validBackoffTime(otp.lastVerificationTime) {
// reset the total verification failures counter
otp.totalVerificationFailures = 0
}
@ -174,7 +174,7 @@ func (otp *Totp) Validate(userCode string) error {
// Checks the time difference between the function call time and the parameter
// if the difference of time is greater than BACKOFF_MINUTES it returns true, otherwise false
func validBackoffTime(lastVerification time.Time) bool {
diff := lastVerification.UTC().Add(BACKOFF_MINUTES * time.Minute)
diff := lastVerification.UTC().Add(backoff_minutes * time.Minute)
return time.Now().UTC().After(diff)
}
@ -570,7 +570,7 @@ func TOTPFromBytes(data []byte) (*Totp, error) {
// this method checks the proper initialization of the Totp object
func totpHasBeenInitialized(otp *Totp) error {
if otp.key == nil || len(otp.key) == 0 {
return INITIALIZATION_FAILED
return initialization_failed_error
}
return nil
}