github.com/readium/readium-lcp-server@v0.0.0-20240101192032-6e95190e99f1/authentication/md5password/makeMd5Password.go (about)

     1  // Copyright (c) 2016 Readium Foundation
     2  //
     3  // Redistribution and use in source and binary forms, with or without modification,
     4  // are permitted provided that the following conditions are met:
     5  //
     6  // 1. Redistributions of source code must retain the above copyright notice, this
     7  //    list of conditions and the following disclaimer.
     8  // 2. Redistributions in binary form must reproduce the above copyright notice,
     9  //    this list of conditions and the following disclaimer in the documentation and/or
    10  //    other materials provided with the distribution.
    11  // 3. Neither the name of the organization nor the names of its contributors may be
    12  //    used to endorse or promote products derived from this software without specific
    13  //    prior written permission
    14  //
    15  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
    16  // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    17  // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    18  // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
    19  // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    20  // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    21  // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    22  // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    23  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    24  // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
    25  
    26  package main
    27  
    28  import (
    29  	"log"
    30  	"math/rand"
    31  	"os"
    32  	"strconv"
    33  	"time"
    34  
    35  	"github.com/abbot/go-http-auth"
    36  )
    37  
    38  func main() {
    39  
    40  	var salt []byte
    41  	var magic []byte
    42  	if len(os.Args) < 2 {
    43  		panic("need a password")
    44  	}
    45  	if len(os.Args) > 2 {
    46  		salt = []byte(os.Args[2])
    47  	} else {
    48  		r := rand.New(rand.NewSource(int64(time.Now().Unix())))
    49  		salt = []byte(strconv.Itoa(r.Int()))
    50  	}
    51  	if len(os.Args) > 3 {
    52  		magic = []byte("$" + string(os.Args[3]) + "$")
    53  	} else {
    54  		magic = []byte("$" + "$")
    55  	}
    56  
    57  	log.Println(string(auth.MD5Crypt([]byte(os.Args[1]), salt, magic)))
    58  
    59  }