43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
import { basename } from 'node:path'
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import { DEFAULT_FOLDER, validateImageKey } from './image-key'
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/** 存储 key → 对外 URL 路径（不含域名） */
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export function storageKeyToPublicPath(key: string): string {
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const prefix = `${DEFAULT_FOLDER}/`
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if (key.startsWith(prefix)) return key.slice(prefix.length)
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return key
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}
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/**
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* 对外 URL 路径：
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* - hideFolder=true：仅文件名（img.com/a8K3xP.webp）
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* - hideFolder=false：去掉内部 images/ 前缀（img.com/2026/08/a.webp）
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*/
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export function toPublicImagePath(key: string, hideFolder: boolean): string {
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if (hideFolder) return basename(key)
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return storageKeyToPublicPath(key)
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}
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/** 公开相对路径 → 存储 key；legacy 完整 key（含 images/）仍接受 */
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export function toStorageKeyFromPublicPath(publicPath: string): string | null {
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const raw = publicPath.replace(/^\/+/, '')
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if (!raw) return null
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if (validateImageKey(raw)) return raw
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const candidate = `${DEFAULT_FOLDER}/${raw}`
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return validateImageKey(candidate) ? candidate : null
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}
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const HIDDEN_DATE_PATH_PATTERN
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= /^\d{4}\/\d{2}\/[^/\\]+\.(jpg|jpeg|png|webp|gif|svg|ico)$/i
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const BARE_FILENAME_PATTERN
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= /^[^/\\]+\.(jpg|jpeg|png|webp|gif|svg|ico)$/i
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export function isHiddenImageDatePath(path: string): boolean {
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return HIDDEN_DATE_PATH_PATTERN.test(path)
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}
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export function isBareImageFilename(path: string): boolean {
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return BARE_FILENAME_PATTERN.test(path)
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}
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