添加微信分享功能

This commit is contained in:
2025-08-09 13:27:47 +08:00
parent f57e410393
commit 597339b666
7 changed files with 315 additions and 3 deletions

View File

@@ -9,7 +9,7 @@ export default defineAppConfig({
}
},
seo: {
siteName: 'Nuxt Docs Template'
siteName: 'Estel Docs'
},
header: {
title: 'Estel Docs',

View File

@@ -6,6 +6,15 @@ const { footer } = useAppConfig()
<UFooter>
<template #left>
{{ footer.credits }}
<UButton
color="neutral"
variant="ghost"
size="sm"
to="https://beian.miit.gov.cn/"
target="_blank"
>
陕ICP备2021012926号-3
</UButton>
</template>
<template #right>

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@@ -0,0 +1,96 @@
<script setup lang="ts">
import { onMounted } from 'vue'
const props = defineProps<{
url: string
title?: string
desc?: string
imgUrl?: string
}>()
// 仅在客户端挂载后执行,避免 SSR 阶段访问 window/location
onMounted(async () => {
try {
console.log('[WxShare] mounted with props:', { ...props })
await loadWxSdk()
console.log('[WxShare] wx sdk loaded:', !!(window as any).wx)
const { appId, timestamp, nonceStr, signature } = await getWxConfig()
console.log('[WxShare] got config:', { appId, timestamp, nonceStr, signature: signature.slice(0, 8) + '...' })
setupShare(appId, timestamp, nonceStr, signature)
} catch (err) {
console.error('[WxShare] init error:', err)
}
})
function loadWxSdk(): Promise<void> {
console.log('loadWxSdk')
if (typeof window === 'undefined') return Promise.resolve()
if ((window as any).wx) return Promise.resolve()
return new Promise((resolve, reject) => {
const existing = document.getElementById('wx-jssdk') as HTMLScriptElement | null
if (existing && (window as any).wx) return resolve()
const script = existing ?? document.createElement('script')
if (!existing) {
script.id = 'wx-jssdk'
script.src = 'https://res.wx.qq.com/open/js/jweixin-1.6.0.js'
script.async = true
script.onload = () => resolve()
script.onerror = () => reject(new Error('Failed to load jweixin.js'))
document.head.appendChild(script)
} else {
script.onload = () => resolve()
script.onerror = () => reject(new Error('Failed to load jweixin.js'))
}
})
}
async function getWxConfig(): Promise<{ appId: string, timestamp: number, nonceStr: string, signature: string }> {
const currentUrl = encodeURIComponent((location.href.split('#')[0]) || location.href)
return await $fetch('/api/wechat/wx-config', { params: { url: currentUrl } })
}
function setupShare(appId: string, timestamp: number, nonceStr: string, signature: string) {
const wx = (window as any).wx
const shareTitle = props.title || document.title || ''
const shareDesc = props.desc || document.title || ''
const shareLink = props.url
const shareImg = props.imgUrl || '/images/default-blog.jpg'
wx.config({
debug: false,
appId,
timestamp,
nonceStr,
signature,
jsApiList: ['updateTimelineShareData', 'updateAppMessageShareData']
})
wx.ready(() => {
console.log('[WxShare] wx.ready')
wx.updateTimelineShareData({
title: shareTitle,
link: shareLink,
imgUrl: shareImg,
success: () => {}
})
wx.updateAppMessageShareData({
title: shareTitle,
desc: shareDesc,
link: shareLink,
imgUrl: shareImg,
success: () => {}
})
})
wx.error((e: unknown) => {
console.error('[WxShare] wx.error:', e)
})
}
</script>
<template>
<div style="display: none" />
<!-- 该组件无可视内容仅用于初始化微信分享 -->
</template>

View File

@@ -98,6 +98,37 @@ const links = computed(() => {
return [...links, ...(appConfig.toc?.bottom?.links || [])].filter(Boolean)
})
// ===== 微信分享(测试按钮用)=====
const wxShareActive = ref(false)
// const contentRoot = ref<HTMLElement | null>(null)
const shareLink = 'https://lijue.me' + decodeURIComponent(path.value)
const shareTitle = computed(() => title)
const shareDesc = computed(() => description || title)
const shareImg = page?.value?.img
// const shareImg = ref<string>('/images/default-blog.jpg')
// onMounted(() => {
// // 从正文中抓取第一张图片作为分享图
// const el = contentRoot.value
// const firstImg = el?.querySelector('img') as HTMLImageElement | null
// if (firstImg?.src) {
// shareImg.value = firstImg.src
// }
// })
// Toast点击测试分享后给出指引
const toast = useToast()
function handleShareClick() {
wxShareActive.value = true
toast.add({
title: '已获取分享接口',
description: '点击右上角分享吧',
duration: 3000,
icon: 'i-lucide-share-2'
})
}
</script>
<template>
@@ -147,7 +178,7 @@ const links = computed(() => {
编辑页面
</UButton>
or
<UButton
<!-- <UButton
variant="link"
color="neutral"
:to="`${appConfig.github.url}/issues/new/choose`"
@@ -156,10 +187,29 @@ const links = computed(() => {
:ui="{ leadingIcon: 'size-4' }"
>
提交问题
</UButton> -->
<UButton
variant="link"
color="neutral"
icon="lucide-share-2"
:ui="{ leadingIcon: 'size-4' }"
@click="handleShareClick()"
>
微信分享
</UButton>
</div>
</USeparator>
<UContentSurround :surround="surround" />
<!-- 激活后挂载分享组件无可视内容 -->
<SharedWxShare
v-if="wxShareActive"
:url="shareLink"
:title="shareTitle"
:desc="shareDesc"
:img-url="shareImg"
/>
</UPageBody>
<template

View File

@@ -83,7 +83,7 @@ export default defineNuxtConfig({
}
},
llms: {
domain: 'https://docs.jiwei.xin',
domain: 'https://lijue.me',
title: 'Estel Docs',
description: 'Estel Docs 文档系统',
sections: [

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@@ -0,0 +1 @@
XJytJeqSNv67T3iY

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@@ -0,0 +1,156 @@
import { defineEventHandler, getQuery, setResponseHeader, createError } from 'h3'
import { createHash, randomBytes } from 'node:crypto'
type AccessTokenResponse = {
access_token: string
expires_in: number
errcode?: number
errmsg?: string
}
type JsapiTicketResponse = {
errcode: number
errmsg: string
ticket: string
expires_in: number
}
type WxConfigPayload = {
appId: string
timestamp: number
nonceStr: string
signature: string
}
/**
* GET /api/wechat/jssdk-config?url=<encoded_url>
*
* 仅新增本文件,不修改其他任何代码。
* 从环境变量读取:
* - WECHAT_APP_ID
* - WECHAT_APP_SECRET
*
* 按微信官方文档生成 JS-SDK 所需签名配置appId、timestamp、nonceStr、signature。
* 会在内存中缓存 access_token 与 jsapi_ticket缓存有效期比官方返回略短预留安全缓冲
*
* 参考文档:
* - JS-SDK 使用步骤(签名计算与 ticket 缓存https://developers.weixin.qq.com/doc/service/guide/h5/jssdk.html#JSSDK%E4%BD%BF%E7%94%A8%E6%AD%A5%E9%AA%A4
*/
const TOKEN_SAFETY_BUFFER_SECONDS = 300 // 5 分钟安全缓冲
let cachedAccessToken: { value: string, expiresAt: number } | null = null
let cachedJsapiTicket: { value: string, expiresAt: number } | null = null
function isExpired(cache: { expiresAt: number } | null): boolean {
if (!cache) return true
return Date.now() >= cache.expiresAt
}
async function fetchAccessToken(appId: string, appSecret: string): Promise<string> {
if (!isExpired(cachedAccessToken)) {
return cachedAccessToken!.value
}
const url = `https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${encodeURIComponent(appId)}&secret=${encodeURIComponent(appSecret)}`
const response = await $fetch<AccessTokenResponse>(url, { method: 'GET' })
if (!response || !response.access_token) {
throw createError({
statusCode: 502,
statusMessage: `Failed to obtain access_token: ${response?.errcode ?? ''} ${response?.errmsg ?? ''}`.trim()
})
}
const expiresInSeconds = Math.max(0, (response.expires_in ?? 7200) - TOKEN_SAFETY_BUFFER_SECONDS)
cachedAccessToken = {
value: response.access_token,
expiresAt: Date.now() + expiresInSeconds * 1000
}
return response.access_token
}
async function fetchJsapiTicket(accessToken: string): Promise<string> {
if (!isExpired(cachedJsapiTicket)) {
return cachedJsapiTicket!.value
}
const url = `https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=${encodeURIComponent(accessToken)}&type=jsapi`
const response = await $fetch<JsapiTicketResponse>(url, { method: 'GET' })
if (!response || response.errcode !== 0 || !response.ticket) {
throw createError({
statusCode: 502,
statusMessage: `Failed to obtain jsapi_ticket: ${response?.errcode ?? ''} ${response?.errmsg ?? ''}`.trim()
})
}
const expiresInSeconds = Math.max(0, (response.expires_in ?? 7200) - TOKEN_SAFETY_BUFFER_SECONDS)
cachedJsapiTicket = {
value: response.ticket,
expiresAt: Date.now() + expiresInSeconds * 1000
}
return response.ticket
}
function generateNonceStr(bytes: number = 16): string {
// 生成由 [a-z0-9] 组成的随机字符串
return randomBytes(bytes).toString('hex')
}
function generateTimestamp(): number {
return Math.floor(Date.now() / 1000)
}
function buildSignature(jsapiTicket: string, nonceStr: string, timestamp: number, url: string): string {
// 注意:参数名必须为全小写,且按字典序构造字符串
// 官方示例顺序jsapi_ticket, noncestr, timestamp, url
const rawString = `jsapi_ticket=${jsapiTicket}&noncestr=${nonceStr}&timestamp=${timestamp}&url=${url}`
return createHash('sha1').update(rawString).digest('hex')
}
export default defineEventHandler(async (event): Promise<WxConfigPayload> => {
// 避免代理缓存
setResponseHeader(event, 'Cache-Control', 'no-store')
const appId = process.env.WECHAT_APP_ID || ''
const appSecret = process.env.WECHAT_APP_SECRET || ''
if (!appId || !appSecret) {
throw createError({ statusCode: 500, statusMessage: 'Missing WECHAT_APP_ID or WECHAT_APP_SECRET in environment.' })
}
const query = getQuery(event)
let pageUrlRaw = typeof query.url === 'string' ? query.url : ''
// 若未传入 url则使用当前请求完整地址去除 hash通常建议前端传入当前页面 URL
if (!pageUrlRaw) {
const requestUrl = event.node.req.headers['x-forwarded-proto'] && event.node.req.headers['x-forwarded-host']
? `${event.node.req.headers['x-forwarded-proto']}://${event.node.req.headers['x-forwarded-host']}${event.node.req.url ?? ''}`
: new URL(event.node.req.url ?? '/', `http://${event.node.req.headers.host}`).toString()
pageUrlRaw = requestUrl
}
const pageUrlNoHash = pageUrlRaw.includes('#')
? pageUrlRaw.slice(0, pageUrlRaw.indexOf('#'))
: pageUrlRaw
const pageUrl = decodeURIComponent(pageUrlNoHash)
if (!/^https?:\/\//i.test(pageUrl)) {
throw createError({ statusCode: 400, statusMessage: 'Invalid url parameter. Expecting an absolute http/https URL.' })
}
const accessToken = await fetchAccessToken(appId, appSecret)
const jsapiTicket = await fetchJsapiTicket(accessToken)
const timestamp = generateTimestamp()
const nonceStr = generateNonceStr(16)
const signature = buildSignature(jsapiTicket, nonceStr, timestamp, pageUrl)
return {
appId,
timestamp,
nonceStr,
signature
}
})