Migrat pkg/password to using pkglib package

pkg/password/common.go

@@ -1,96 +0,0 @@
-package password
-
-import (
-	"bufio"
-	"embed"
-	"fmt"
-	"io/fs"
-	"strings"
-)
-
-// CommonPasswordError
-type CommonPasswordError struct {
-	CommonPassword
-}
-
-func (cpe CommonPasswordError) Error() string {
-	return fmt.Sprintf("%q from %q", cpe.Password, cpe.Source)
-}
-
-type CommonPassword struct {
-	Password string
-	Source   string
-}
-
-//go:embed common
-var commonEmbed embed.FS
-
-// CommonPasswords returns a channel that contains all passwords.
-// The caller must drain the channel.
-func CommonPasswords() <-chan CommonPassword {
-	pChan := make(chan CommonPassword, 10)
-	go func() {
-		defer close(pChan)
-
-		fs.WalkDir(commonEmbed, ".", func(path string, d fs.DirEntry, err error) error {
-			if err != nil {
-				return err
-			}
-
-			// get the full path
-			if d.IsDir() || !strings.HasSuffix(path, ".txt") {
-				return nil
-			}
-
-			// open it
-			file, err := commonEmbed.Open(path)
-			if err != nil {
-				return err
-			}
-			defer file.Close()
-
-			// scan it line by line
-			scanner := bufio.NewScanner(file)
-			for scanner.Scan() {
-				line := strings.TrimSpace(scanner.Text())
-				if line == "" || strings.HasPrefix(line, "//") {
-					continue
-				}
-				pChan <- CommonPassword{
-					Password: line,
-					Source:   path,
-				}
-			}
-
-			return scanner.Err()
-		})
-	}()
-	return pChan
-}
-
-// CheckCommonPassword checks if a password is a common password.
-//
-// check is called with each candidate password to perform the check.
-// check should return a boolean indicating if the password in question corresponds to the candidate.
-//
-// CheckCommonPassword returns one of three error values.
-//
-// - a CommonPasswordError (when a password matches a common password)
-// - an error returned by check (assuming some check went wrong)
-// - or nil (when a password is not a common password
-func CheckCommonPassword(check func(candidate string) (bool, error)) error {
-	for commmon := range CommonPasswords() {
-		ok, err := check(commmon.Password)
-		if err != nil {
-			return err
-		}
-
-		// password validation passed
-		if ok {
-			return CommonPasswordError{
-				CommonPassword: commmon,
-			}
-		}
-	}
-	return nil
-}

pkg/password/common/wisski.txt

@@ -1,2 +0,0 @@
-// This file contains a list of common WissKI Passwords
-W1ssk1.

pkg/password/password.go

@@ -1,48 +0,0 @@
-// Package password allows generating random passwords
-package password
-
-import (
-	"crypto/rand"
-	"math/big"
-
-	"github.com/tkw1536/pkglib/pools"
-)
-
-// NOTE(twiesing): A bunch of scripts cannot properly handle the extra characters in the password.
-// For now it is disabled, but it should be re-enabled later.
-const PasswordCharSet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" // + "!@#$%&*"
-var passwordCharCount = big.NewInt(int64(len(PasswordCharSet)))
-
-// Password returns a randomly generated string with the provided length.
-// It consists of alphanumeric characters only.
-//
-// When an error occurs, it is guaranteed to return "", err.
-// [rand.Reader] is used as the source of randomness.
-func Password(length int) (string, error) {
-	if length < 0 {
-		panic("length < 0")
-	}
-
-	// create a buffer to write the string to!
-	password := pools.GetBuilder()
-	defer pools.ReleaseBuilder(password)
-	password.Grow(length)
-
-	for i := 0; i < length; i++ {
-
-		// grab a random bIndex!
-		bIndex, err := rand.Int(rand.Reader, passwordCharCount)
-		if err != nil {
-			return "", err
-		}
-
-		// and use that index!
-		index := int(bIndex.Int64())
-		if err := password.WriteByte(PasswordCharSet[index]); err != nil {
-			return "", err
-		}
-	}
-
-	// return the password!
-	return password.String(), nil
-}