121 lines
3.4 KiB
JavaScript
121 lines
3.4 KiB
JavaScript
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// Minimal URL polyfill for environments (like uni-app APP service layer) that
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// don't provide a native URL implementation. It only supports the pieces that
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// our codebase relies on: resolving href/origin/pathname and providing
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// createObjectURL/revokeObjectURL stubs.
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(function ensureURLPolyfill() {
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if (typeof URL !== 'undefined') {
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return
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}
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const globalObj = typeof globalThis !== 'undefined'
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? globalThis
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: (typeof global !== 'undefined'
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? global
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: (typeof self !== 'undefined'
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? self
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: (typeof window !== 'undefined' ? window : {})))
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const ABSOLUTE_URL_REGEX = /^([a-zA-Z][a-zA-Z0-9+.-]*:)?\/\/([^\/?#:]+)(?::(\d+))?(\/[^?#]*)?([\?][^#]*)?(#.*)?$/
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function normalizePath(path) {
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if (!path) return '/'
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if (!path.startsWith('/')) return '/' + path
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return path
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}
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function parseAbsoluteUrl(url) {
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const match = url.match(ABSOLUTE_URL_REGEX)
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if (!match) return null
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const protocol = match[1] || ''
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const hostname = match[2] || ''
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const port = match[3] || ''
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const pathname = normalizePath(match[4] || '/')
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const search = match[5] || ''
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const hash = match[6] || ''
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const host = hostname + (port ? ':' + port : '')
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const origin = protocol ? `${protocol}//${host}` : ''
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return { protocol, hostname, port, pathname, search, hash, host, origin, href: `${origin}${pathname}${search}${hash}` }
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}
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function isAbsolute(url) {
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return /^([a-zA-Z][a-zA-Z0-9+.-]*:)?\/\//.test(url)
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}
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function resolveUrl(input, base) {
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if (isAbsolute(input)) {
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return input
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}
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if (base && isAbsolute(base)) {
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const baseParts = parseAbsoluteUrl(base)
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if (!baseParts) return input
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if (input.startsWith('/')) {
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return `${baseParts.origin}${input}`
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}
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const dir = baseParts.pathname.endsWith('/')
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? baseParts.pathname
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: baseParts.pathname.replace(/[^/]+$/, '/')
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return `${baseParts.origin}${dir}${input}`
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}
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return input
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}
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class URLPolyfill {
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constructor(input, base) {
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const resolved = resolveUrl(String(input || ''), base ? String(base) : undefined)
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const parsed = parseAbsoluteUrl(resolved)
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if (parsed) {
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this.href = parsed.href
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this.protocol = parsed.protocol
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this.hostname = parsed.hostname
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this.port = parsed.port
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this.pathname = parsed.pathname
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this.search = parsed.search
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this.hash = parsed.hash
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this.host = parsed.host
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this.origin = parsed.origin
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} else {
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this.href = resolved
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this.protocol = ''
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this.hostname = ''
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this.port = ''
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this.pathname = resolved || '/'
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this.search = ''
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this.hash = ''
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this.host = ''
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this.origin = ''
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}
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}
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toString() {
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return this.href
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}
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static createObjectURL(blob) {
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console.warn('[URL polyfill] createObjectURL fallback used')
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if (typeof blob === 'string') {
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return blob
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}
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if (typeof FileReader !== 'undefined' && blob) {
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try {
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const reader = new FileReader()
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reader.readAsDataURL(blob)
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return ''
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} catch (e) {
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console.warn('[URL polyfill] createObjectURL fallback failed:', e)
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}
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}
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return 'data:application/octet-stream;base64,'
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}
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static revokeObjectURL() {
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// No-op in polyfill
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}
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}
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globalObj.URL = URLPolyfill
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})()
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