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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?

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{
"recommendations": ["Vue.volar", "Vue.vscode-typescript-vue-plugin"]
}

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# Vue 3 + Vite
This template should help get you started developing with Vue 3 in Vite. The template uses Vue 3 `<script setup>` SFCs, check out the [script setup docs](https://v3.vuejs.org/api/sfc-script-setup.html#sfc-script-setup) to learn more.
## Recommended IDE Setup
- [VS Code](https://code.visualstudio.com/) + [Volar](https://marketplace.visualstudio.com/items?itemName=Vue.volar) (and disable Vetur) + [TypeScript Vue Plugin (Volar)](https://marketplace.visualstudio.com/items?itemName=Vue.vscode-typescript-vue-plugin).

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Vite + Vue</title>
</head>
<body>
<div id="app"></div>
<script type="module" src="/src/main.js"></script>
</body>
</html>

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{
"name": "vue3-local",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"preview": "vite preview"
},
"dependencies": {
"crypto-js": "^4.2.0",
"element-plus": "^2.5.0",
"vue": "^3.3.11"
},
"devDependencies": {
"@vitejs/plugin-vue": "^4.5.2",
"vite": "^5.0.8"
}
}

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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
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<script setup>
import {ref} from "vue";
import {ElMessage} from "element-plus";
import {util, MessageType} from "./Util.js";
let messages = ref({})
let message = ref('')
let status = ref("未连接")
let raw = ref("")
let key = ""
let waitTimer = ref(0)
let waitIntervalId = 0
let purgeOnDisconnect = false
let deleteTimer = 0
let counter = 0
let websocket
function init(){
if(raw.value.trim().length < 4){
ElMessage.error("长度不够，请重新输入")
return
}
key = util.generateKey(raw.value)
let pairCode = util.generatePairCode(key)
websocket = new WebSocket('ws://localhost:7777')
websocket.onopen = () => {
let initMessage = {"type": MessageType.INIT, "pairCode": pairCode}
websocket.send(JSON.stringify(initMessage))
}
websocket.onmessage = (event) => {
if(event.data.startsWith("{"))
switch (JSON.parse(event.data).type){
case MessageType.WAIT:
waitTimer.value = 60
status.value = '等待中'
waitIntervalId = setInterval(() => {
if(waitTimer.value > 0)
waitTimer.value--
else {
status.value = '未连接'
websocket.close()
waitTimer.value = 0
ElMessage.error("已超时,请重新发起连接")
clearInterval(waitIntervalId)
}
}, 1000)
break
case MessageType.JOIN:
status.value = '已连接'
waitTimer.value = 0
clearInterval(waitIntervalId)
ElMessage.success("已加入聊天")
break
case MessageType.DISCONNECT:
status.value = '已断开'
ElMessage.error("对方已断开")
if(purgeOnDisconnect)
messages.value = {}
break
}
else {
let data = util.decrypt(event.data, key)
data = JSON.parse(data)
switch (data.type){
case MessageType.PURGE_CONFIG:
purgeOnDisconnect = data.purgeOnDisconnect
if(purgeOnDisconnect)
messages.value[++counter] = {'type': 'config', 'message': '对方已设置断开连接后删除消息'}
else
messages.value[++counter] = {'type': 'config', 'message': '对方已设置断开连接后保留消息'}
break
case MessageType.TIMER_CONFIG:
deleteTimer = data.deleteTimer
if(deleteTimer > 0)
messages.value[++counter] = {'type': 'config', 'message': `对方已设置${deleteTimer}秒后删除消息`}
else
messages.value[++counter] = {'type': 'config', 'message': `对方已关闭定时删除消息`}
break
case MessageType.MESSAGE:
messages.value[++counter] = {'type': 'other', 'message': data.message}
if(deleteTimer !== 0) {
let key = counter
setTimeout(() => {
console.log("删除消息:", key)
delete messages.value[key]
}, deleteTimer * 1000)
}
break
}
}
websocket.onclose = () => {
status.value = '已断开'
ElMessage.error("与服务器失去连接")
if(purgeOnDisconnect)
messages.value = {}
}
}
}
function send(){
let data = {'type': MessageType.MESSAGE, 'message': message.value}
data = {'type': MessageType.CONTENT, 'content': util.encrypt(JSON.stringify(data), key)}
websocket.send(JSON.stringify(data))
messages.value[++counter] = {'type': 'self', 'message': message.value}
if(deleteTimer !== 0) {
let key = counter
setTimeout(() => {
console.log("删除消息:", key)
delete messages.value[key]
}, deleteTimer * 1000)
}
message.value = ''
}
function setDeleteTimer(sec){
deleteTimer = sec
let data = {'type': MessageType.TIMER_CONFIG, deleteTimer}
data = {'type': MessageType.CONTENT, 'content': util.encrypt(JSON.stringify(data), key)}
websocket.send(JSON.stringify(data))
if(sec === 0)
messages.value[++counter] = {'type': 'config', 'message': `你关闭了定时删除消息`}
else
messages.value[++counter] = {'type': 'config', 'message': `你设置了${sec}秒后删除消息`}
}
function setPurgeOnDisconnect(isPurge){
purgeOnDisconnect = isPurge
let data = {'type': MessageType.PURGE_CONFIG, purgeOnDisconnect}
data = {'type': MessageType.CONTENT, 'content': util.encrypt(JSON.stringify(data), key)}
websocket.send(JSON.stringify(data))
if(isPurge)
messages.value[++counter] = {'type': 'config', 'message': `你设置了断开连接后删除消息`}
else
messages.value[++counter] = {'type': 'config', 'message': `你设置了断开连接后保留消息`}
}
</script>
<template>
<el-container>
<el-header style="text-align: center">
{{status}}
</el-header>
<el-main>
<div v-if="status === '已连接' || status === '已断开'">
<el-scrollbar max-height="60%">
<div v-for="message in messages" :class="message.type">
{{message.message}}
</div>
</el-scrollbar>
<el-button @click="setDeleteTimer(10)">开启定时删除</el-button>
<el-button @click="setDeleteTimer(0)">关闭定时删除</el-button>
<el-button @click="setPurgeOnDisconnect(true)">设置断联删除消息</el-button>
<el-button @click="setPurgeOnDisconnect(false)">设置断联保留消息</el-button>
<el-input v-model="message"/>
<el-button @click="send">发送消息</el-button>
</div>
<div v-if="status === '未连接'">
请输入四到十六位字符串以生成密钥:
<el-input v-model="raw"/>
<el-button @click="init">连接</el-button>
</div>
<div v-if="status === '等待中'">
{{waitTimer}}
</div>
</el-main>
</el-container>
</template>
<style scoped>
.self{
background: #bfa;
}
.other{
background: red;
}
.config{
background: gray;
}
</style>

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import CryptoJs from "crypto-js";
export let util = {
/**
* 传入一个字符串，长度为4到16位，用于生成密钥
* @param str 原始字符串
* @returns {null}
*/
generateKey:function (str){
if(!str instanceof String || str.length < 4)
return null
let raw
if(str.length > 16)
raw = str.substring(0, 16)
else
raw = str.repeat(Math.ceil(16 / str.length)).substring(0, 16)
return CryptoJs.enc.Utf8.parse(raw)
},
generatePairCode:function (str){
return CryptoJs.MD5(str+'salt').toString()
},
encrypt:function (plainText, key){
return CryptoJs.AES.encrypt(plainText, key, {mode: CryptoJs.mode.ECB, padding: CryptoJs.pad.Pkcs7}).toString()
},
decrypt:function (encrypted, key){
return CryptoJs.AES.decrypt(encrypted, key, {mode: CryptoJs.mode.ECB, padding: CryptoJs.pad.Pkcs7}).toString(CryptoJs.enc.Utf8)
}
}
export let MessageType = {
'INIT': 1,
'WAIT': 11,
'JOIN': 12,
'CANCEL': 13,
'DISCONNECT': 20,
'CONTENT': 30,
'TIMER_CONFIG': 31,
'PURGE_CONFIG': 32,
'MESSAGE': 33
}

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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="37.07" height="36" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 198"><path fill="#41B883" d="M204.8 0H256L128 220.8L0 0h97.92L128 51.2L157.44 0h47.36Z"></path><path fill="#41B883" d="m0 0l128 220.8L256 0h-51.2L128 132.48L50.56 0H0Z"></path><path fill="#35495E" d="M50.56 0L128 133.12L204.8 0h-47.36L128 51.2L97.92 0H50.56Z"></path></svg>
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import { createApp } from 'vue'
import App from './App.vue'
import "element-plus/dist/index.css"
import element from 'element-plus'
createApp(App).use(element).mount('#app')

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import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
// https://vitejs.dev/config/
export default defineConfig({
plugins: [vue()],
})