forked from drew/smtprelay
68 lines
1.1 KiB
Go
68 lines
1.1 KiB
Go
package main
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import (
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"bufio"
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"errors"
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"os"
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"strings"
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"golang.org/x/crypto/bcrypt"
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)
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var (
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filename string
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)
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func AuthLoadFile(file string) error {
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f, err := os.Open(file)
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if err != nil {
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return err
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}
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f.Close()
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filename = file
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return nil
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}
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func AuthReady() bool {
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return (filename != "")
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}
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func AuthFetch(username string) (string, string, error) {
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if !AuthReady() {
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return "", "", errors.New("Authentication file not specified. Call LoadFile() first")
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}
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file, err := os.Open(filename)
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if err != nil {
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return "", "", err
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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parts := strings.Fields(scanner.Text())
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if len(parts) != 3 {
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continue
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}
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if strings.ToLower(username) == strings.ToLower(parts[0]) {
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return parts[1], parts[2], nil
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}
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}
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return "", "", errors.New("User not found")
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}
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func AuthCheckPassword(username string, secret string) error {
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hash, _, err := AuthFetch(username)
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if err != nil {
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return err
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}
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if bcrypt.CompareHashAndPassword([]byte(hash), []byte(secret)) == nil {
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return nil
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}
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return errors.New("Password invalid")
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}
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