53 lines
1.6 KiB
TypeScript
53 lines
1.6 KiB
TypeScript
import { SERVER_ROOT_PATH } from "./session"
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/**
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* 规范化服务端路径：去掉末尾斜杠（根路径 `$/` 除外）。
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*/
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export function normalizeServerPath(serverPath: string): string {
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let result = serverPath.trim()
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while (result.length > SERVER_ROOT_PATH.length && result.endsWith("/")) {
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result = result.slice(0, -1)
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}
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return result.length === 0 ? SERVER_ROOT_PATH : result
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}
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/**
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* 取服务端路径的父路径，根路径返回自身。
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*/
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export function getParentPath(serverPath: string): string {
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const normalized = normalizeServerPath(serverPath)
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if (normalized === SERVER_ROOT_PATH || normalized === "$") {
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return SERVER_ROOT_PATH
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}
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const index = normalized.lastIndexOf("/")
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const parent = normalized.slice(0, index)
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return parent === "$" ? SERVER_ROOT_PATH : parent
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}
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/**
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* 按从根到父目录的顺序返回路径的全部祖先（不含自身），用于树的同步展开。
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*/
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export function getAncestorPaths(serverPath: string): string[] {
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const normalized = normalizeServerPath(serverPath)
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const ancestors: string[] = []
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let current = normalized
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while (current !== SERVER_ROOT_PATH) {
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current = getParentPath(current)
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ancestors.unshift(current)
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}
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return ancestors
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}
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/**
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* 判断 childPath 是否等于 basePath 或位于其子树内。
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*/
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export function isSameOrUnderPath(basePath: string, childPath: string): boolean {
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const base = normalizeServerPath(basePath)
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const child = normalizeServerPath(childPath)
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if (base === child) {
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return true
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}
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const prefix = base === SERVER_ROOT_PATH ? base : `${base}/`
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return child.startsWith(prefix)
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}
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