2025-06-04 07:02:19 +08:00

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JavaScript
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/**
* 将服务器资源路径转换为本地资源路径
* @type {(function(*): (*))|*}
*/
const convertLocalResourcePath = (() => {
let initialized = false
let appPreUrl = null
let serverPreUrl = null
let urlRegex = null
// 将 escapeRegExp 移到闭包内部
const escapeRegExp = (string) => {
return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
}
// 初始化函数
const initialize = () => {
if (initialized) return
// 设置应用前缀URL
if ($A.isEEUIApp || $A.isElectron) {
appPreUrl = window.location.origin + "/"
}
// 如果没有特殊前缀,提前返回
if (!appPreUrl) return
// 获取服务器URL
serverPreUrl = $A.mainUrl()
const escapedPreUrl = escapeRegExp(serverPreUrl)
// 固定的模式
const patterns = [
'images/',
// 可以继续添加其他路径...
]
// 计算转义后的模式
const escapedPatterns = patterns.map(pattern => escapeRegExp(pattern))
// 编译正则表达式
urlRegex = new RegExp(`${escapedPreUrl}(${escapedPatterns.join('|')})`)
initialized = true
}
// 返回实际的处理函数
return (url) => {
// 第一次调用时初始化
initialize()
// 如果没有特殊前缀直接返回原URL
if (!appPreUrl) {
return url
}
// 正则判断必须是 gif、icns、ico、jpg、jpeg、png、svg 结尾
if (!/\.(jpe?g|webp|png|gif|icns|ico|svg)$/i.test(url)) {
return url
}
if (urlRegex.test(url)) {
return url.replace(serverPreUrl, appPreUrl)
}
return url
}
})()
/**
* 是否是本地URL
* @param url
* @returns {*}
*/
const isLocalHost = (url) => {
if (!url) {
return false
}
try {
const uri = new URL(url)
return uri.hostname == "localhost"
} catch (e) {
return false
}
}
export {convertLocalResourcePath, isLocalHost}