go+vue+wails写一个简单的密码加密器

news2024/10/4 0:22:43

git仓库

gitee: malred/password-generator-wails-vue
gitee： malred/password-generator-wails-vue

github: https://github.com/malred/password-generator-wails-vue

wails是什么

我们用它来套壳前端项目（vue），打包成桌面端

思路

提供一个输入框（input），然后获取用户输入的字符串，通过select标签提供加密算法选项，点击生成按钮，根据选择的加密算法来给input里的字符串加密，然后在最底部显示加密结果

项目准备

wails安装

确保你的go版本在1.18及以上

go install github.com/wailsapp/wails/v2/cmd/wails@latest

创建项目

wails init -n password-generator -t vue

app.go

定义了结构体App，当编译的时候，wails会自动把App结构体上的方法转为js方法，可以供前端使用
比如这里的Greet方法

在frontend/wailsjs/go/main/App.js里可以看到对应的方法

vue部分

因为项目比较简单，我们的代码都写在app.vue

template 模板

一个input框，一个select选择，一个按钮

<template>
  <div class="container">
    <input
      type="text"
      v-model="inp"
      placeholder="Input your password to encrypt"
    />
    <br />
    <select name="alg" id="alg" v-model="sel">
      <option :value="v" v-for="v in crypto" :key="v">{{ v }}</option>
    </select>
    <br />
    <button @click="Gen">Generator!</button>
    <br />
    <div>{{ genStr }}</div>
  </div>
</template>

script 脚本

<script setup>
import crypto from './crypto'
import { ref } from 'vue'
// App.go定义后被编译为js可以调用的方法 import { MD5, Sha1, HMAC_SHA256 } from '../wailsjs/go/main/App'
// 选择框的值 const sel = ref('sha1')
// 输入框的值 const inp = ref('')

// 加密后的字符串 let genStr = ref('')

// 点击按钮触发 const Gen = () => {
  // 如果inp框里没有输入值   if (!inp.value) {
    return
  }
  // 判断选择了什么加密方式并加密   // console.log(sel.value)   if (sel.value === 'md5') {
    MD5(inp.value).then(res => {
      genStr.value = res
    })
  } else if (sel.value === 'sha1') {
    Sha1(inp.value).then(res => {
      genStr.value = res
    })
  } else if (sel.value === 'HMAC-SHA256') {
    HMAC_SHA256(inp.value).then(res => {
      genStr.value = res
    })
  }
  // 表单数据清空   inp.value = ''
}
</script>

crypto.js

返回一个数组，里面是加密方法的名称

 export default [
    "sha1",
    "md5",
    "HMAC-SHA256"
]

style 风格

<style scoped>
.container {
  text-align: center;
  margin-top: 16rem;
}
select {
  margin-top: 2rem;
  border: none;
  outline: none;
  width: 16rem;
  height: 3rem;
  background-color: #faf1d8;

  font-size: 1.2rem;
  line-height: 1.2rem;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  /* padding-right: 2px; */
  text-align: center;
  box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2);

  border-radius: 0.5rem;
}

button {
  background-color: #f2c64f; /* Green */
  border: none;
  color: black;
  border-radius: 0.5rem;
  padding: 3rem 4rem;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 1.2rem;
  margin: 4px 2px;
  cursor: pointer;
  -webkit-transition-duration: 0.4s; /* Safari */
  transition-duration: 0.4s;
}
button:hover {
  box-shadow: 0 12px 16px 0 rgba(0, 0, 0, 0.24),
    0 17px 50px 0 rgba(0, 0, 0, 0.19);
}
div {
  color: black;
  font-weight: bold;
  margin-top: 2rem;
}
button {
  margin-top: 2rem;
  position: relative;
  background-color: #4caf50;
  border: none;
  font-size: 12rempx;
  color: #ffffff;
  padding: 1rem;
  width: 200px;
  text-align: center;
  -webkit-transition-duration: 0.4s; /* Safari */
  transition-duration: 0.4s;
  text-decoration: none;
  overflow: hidden;
  cursor: pointer;
}
button:after {
  content: '';
  background: #90ee90;
  display: block;
  position: absolute;
  padding-top: 300%;
  padding-left: 350%;
  margin-left: -20px !important;
  margin-top: -120%;
  opacity: 0;
  transition: all 0.8s;
}
button:active:after {
  padding: 0;
  margin: 0;
  opacity: 1;
  transition: 0s;
}

input {
  outline: none;
  /* background-color: #4368d092; */
  /* padding: 1rem .5rem; */
  border: 1px solid #fff;
  border-radius: 0.5rem;

  background-color: #faf1d8;
  text-indent: 1rem;

  width: 16rem;
  height: 3rem;
  font-size: 1rem;
  font-weight: bold;

  box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2);
}
input:placeholder-shown {
  /* border: 3px solid rgba(224, 224, 56, 0.762); */
}
input::-webkit-input-placeholder {
  /* color: #2feb2f; */
  font-size: 1rem;
  font-weight: normal;
}
</style>

assets/images/1.png 是从网上下载的图片，作为背景图

在style.css里修改背景图

html {
  /* background-color: rgba(27, 38, 54, 1); */
  background: url('assets/images/1.png') no-repeat; 
  background-size: 100% 100%;
  background-attachment: fixed;
  text-align: center;
  color: white;
}

wails的App.go定义加密算法

package main

import (
	"bytes"
	"context"
	"crypto/aes"
	"crypto/cipher"
	"crypto/hmac"
	"crypto/md5"
	"crypto/sha1"
	"crypto/sha256"
	"encoding/hex"
	"fmt"
)

// App struct type App struct {
	ctx context.Context
}

// NewApp creates a new App application struct func NewApp() *App {
	return &App{}
}

// startup is called when the app starts. The context is saved // so we can call the runtime methods func (a *App) startup(ctx context.Context) {
	a.ctx = ctx
}

// Greet returns a greeting for the given name func (a *App) Greet(name string) string {
	return fmt.Sprintf("Hello %s, It's show time!", name)
}

// md5加密 func (a *App) MD5(str string) string {
	h := md5.New()
	h.Write([]byte(str))
	return hex.EncodeToString(h.Sum(nil))
} 

func (a *App) HMAC_SHA256(str string) string {
	secret := "mysecret"
	data := "data"

	// Create a new HMAC by defining the hash type and the key (as byte array) 	h := hmac.New(sha256.New, []byte(secret))

	// Write Data to it 	h.Write([]byte(data))

	// Get result and encode as hexadecimal string 	sha := hex.EncodeToString(h.Sum(nil))
	return sha
}

// sha1加密 func (a *App) Sha1(data string) string {
	sha1 := sha1.New()
	sha1.Write([]byte(data))
	return hex.EncodeToString(sha1.Sum([]byte("")))
}