Tom Boullay
141 lines
4.5 KiB
TypeScript
141 lines
4.5 KiB
TypeScript
// ---------------------------------------------------------------------------
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// Nextcloud WebDAV client
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// Uses native fetch — no npm package needed.
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// ---------------------------------------------------------------------------
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const MAX_VERSIONS = 1000
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// Lazy-cached config to avoid recomputing on every request
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let cachedConfig: { davBase: string; auth: string } | null = null
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function getConfig() {
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if (cachedConfig) return cachedConfig
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const url = process.env.NEXTCLOUD_URL
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const token = process.env.NEXTCLOUD_SHARE_TOKEN
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const password = process.env.NEXTCLOUD_SHARE_PASSWORD || ''
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if (!url || !token) {
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throw new Error('Nextcloud non configure (NEXTCLOUD_URL, NEXTCLOUD_SHARE_TOKEN)')
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}
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// Public share WebDAV: https://cloud.example.com/public.php/webdav/
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const davBase = `${url.replace(/\/+$/, '')}/public.php/webdav`
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const auth = 'Basic ' + Buffer.from(`${token}:${password}`).toString('base64')
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cachedConfig = { davBase, auth }
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return cachedConfig
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}
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function davUrl(davBase: string, path: string): string {
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const clean = path.replace(/^\/+/, '').replace(/\/+$/, '')
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return `${davBase}/${clean}`
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}
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// ---------------------------------------------------------------------------
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// Low-level WebDAV helpers
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// ---------------------------------------------------------------------------
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async function davRequest(
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method: string,
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path: string,
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body?: Buffer | string | null,
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extraHeaders?: Record<string, string>,
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): Promise<Response> {
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const { davBase, auth } = getConfig()
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const url = davUrl(davBase, path)
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const res = await fetch(url, {
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method,
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headers: {
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Authorization: auth,
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...extraHeaders,
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},
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body: body == null ? undefined : typeof body === 'string' ? body : new Uint8Array(body),
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})
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return res
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}
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// ---------------------------------------------------------------------------
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// Public API
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// ---------------------------------------------------------------------------
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/** Check if a folder exists on the Nextcloud instance. */
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export async function folderExists(path: string): Promise<boolean> {
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try {
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const res = await davRequest('PROPFIND', path + '/', null, { Depth: '0' })
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return res.status >= 200 && res.status < 300
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} catch {
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return false
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}
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}
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/**
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* Create a folder and all parent segments if they don't exist.
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* Like `mkdir -p`. Attempts MKCOL directly and handles 405 (already exists).
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*/
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export async function mkdirRecursive(path: string): Promise<void> {
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const segments = path.replace(/^\/+/, '').replace(/\/+$/, '').split('/')
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let current = ''
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for (const seg of segments) {
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current += '/' + seg
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const res = await davRequest('MKCOL', current + '/')
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if (res.status !== 201 && res.status !== 405) {
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// 201 = created, 405 = already exists — both are fine
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const text = await res.text().catch(() => '')
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throw new Error(`MKCOL ${current} failed (${res.status}): ${text.slice(0, 200)}`)
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}
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}
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}
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/** Upload a file (overwrite if exists). */
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export async function uploadFile(path: string, content: Buffer): Promise<void> {
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const res = await davRequest('PUT', path, content, {
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'Content-Type': 'application/octet-stream',
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'Content-Length': String(content.length),
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})
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if (res.status < 200 || res.status >= 300) {
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const text = await res.text().catch(() => '')
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throw new Error(`PUT ${path} failed (${res.status}): ${text.slice(0, 200)}`)
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}
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}
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/** Move (rename) a folder or file. */
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export async function moveFolder(from: string, to: string): Promise<void> {
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const { davBase } = getConfig()
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const destination = davUrl(davBase, to) + '/'
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const res = await davRequest('MOVE', from + '/', null, {
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Destination: destination,
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Overwrite: 'F',
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})
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if (res.status < 200 || res.status >= 300) {
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const text = await res.text().catch(() => '')
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throw new Error(`MOVE ${from} -> ${to} failed (${res.status}): ${text.slice(0, 200)}`)
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}
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}
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// ---------------------------------------------------------------------------
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// High-level: find next available version folder
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// ---------------------------------------------------------------------------
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/**
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* Find the next available Vx folder for archiving.
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* E.g. if V1/coffeetest exists but V2/coffeetest doesn't, returns "V2".
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*/
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export async function findNextVersion(
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basePath: string,
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folderName: string,
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): Promise<string> {
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for (let i = 1; i <= MAX_VERSIONS; i++) {
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const versionPath = `${basePath}/V${i}/${folderName}`
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const exists = await folderExists(versionPath)
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if (!exists) return `V${i}`
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}
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throw new Error(`Nombre maximum de versions atteint (V${MAX_VERSIONS})`)
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}
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