Add command to hash password directly

Useful for resetting passwords manually.

auth/auth.go

@@ -131,7 +131,7 @@ func SignoutUser(r *http.Request, user *models.User) {
 }
 
 func SignupUser(ctx context.Context, username string, name string, password string) (*models.User, error) {
-	passwordHash, err := hashPassword(password)
+	passwordHash, err := HashPassword(password)
 	if err != nil {
 		return nil, fmt.Errorf("Cannot signup user, failed to create hashed password: %w", err)
 	}
@@ -182,7 +182,7 @@ func findUser(ctx context.Context, user_id int) (*models.User, error) {
 	return user, err
 }
 
-func hashPassword(password string) (string, error) {
+func HashPassword(password string) (string, error) {
 	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
 	return string(bytes), err
 }
@@ -205,7 +205,7 @@ func validatePassword(password, hash string) bool {
 }
 
 func validateUser(ctx context.Context, username string, password string) (*models.User, error) {
-	passwordHash, err := hashPassword(password)
+	passwordHash, err := HashPassword(password)
 	if err != nil {
 		return nil, fmt.Errorf("Failed to hash password: %w", err)
 	}

cmd/passwordgen/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/Gleipnir-Technology/nidus-sync/auth"
+)
+
+func main() {
+	var password string
+	scanValue("Please enter your password : ", &password)
+
+	hash, err := auth.HashPassword(password)
+	if err != nil {
+		fmt.Printf("Failed to hash password: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Println("Password:", password)
+	fmt.Println("Hash:    ", hash)
+
+}
+
+func scanValue(message string, result *string) {
+	fmt.Printf(message)
+	scanner := bufio.NewScanner(os.Stdin)
+	if ok := scanner.Scan(); !ok {
+		log.Fatal(errors.New("Failed to scan input"))
+	}
+	*result = scanner.Text()
+}