Upgrade go-otp and let it handle base32 decoding

README.textile

@@ -32,7 +32,6 @@ h4. TODO
 * Add tests for:
 ** multiple keys and OTP-tokens in an hash
 * Fix FIXME's in the code
-* Use IsBase32Secret instead of base32.StdEncoding.DecodeString
 * Support HOTP
 * Support these features from Google Authenticator PAM module:
 ** Support for emergency scratch codes

main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bufio"
-	"encoding/base32"
 	"fmt"
 	"github.com/hgfischer/go-otp"
 	"io"
@@ -51,8 +50,7 @@ var parse_config = func(filename string) (token string) {
 	if len(scanner.Text()) != 16 {
 		check_err(fmt.Errorf("Couldn't read exactly 16 bytes from first line of %q. Got this: %q.", filename, scanner.Text()))
 	}
-	token_in_bytes, err := base32.StdEncoding.DecodeString(scanner.Text())
-	check_err(err)
+	token_in_bytes := scanner.Text()
 	return string(token_in_bytes)
 }
 
@@ -103,7 +101,7 @@ func main() {
 
 	otp_input := read_otp_input()
 
-	totp := &otp.TOTP{Secret: token}
+	totp := &otp.TOTP{Secret: token, IsBase32Secret: true}
 	verified := totp.Verify(otp_input)
 
 	if verified {

main_test.go

@@ -73,7 +73,7 @@ func TestConfigParsing(t *testing.T) {
 		return config_file
 	}).Restore()
 
-	expected := "RLYDEADN0B"
+	expected := "KJGFSRCFIFCE4MCC"
 	ga_token_file := find_config()
 	found := parse_config(ga_token_file)
 	if found != expected {