github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/commons/passwords/password.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package passwords
    19  
    20  import (
    21  	"github.com/aacfactory/errors"
    22  	"github.com/aacfactory/fns/commons/bytex"
    23  	"golang.org/x/crypto/bcrypt"
    24  )
    25  
    26  type Password string
    27  
    28  func (pass Password) BcryptHash() (bp BcryptPassword, err error) {
    29  	b, bErr := bcrypt.GenerateFromPassword(bytex.FromString(pass.String()), bcrypt.DefaultCost)
    30  	if bErr != nil {
    31  		err = errors.Warning("password: generate bcrypt hash failed").WithCause(bErr).WithMeta("plain", pass.String())
    32  		return
    33  	}
    34  	bp = BcryptPassword(b)
    35  	return
    36  }
    37  
    38  func (pass Password) String() string {
    39  	return string(pass)
    40  }
    41  
    42  type BcryptPassword string
    43  
    44  func (pass BcryptPassword) Compare(plain string) (ok bool) {
    45  	ok = bcrypt.CompareHashAndPassword(bytex.FromString(pass.String()), bytex.FromString(plain)) == nil
    46  	return
    47  }
    48  
    49  func (pass BcryptPassword) String() string {
    50  	return string(pass)
    51  }