feat: /list endpoint

src/client.ts

@@ -0,0 +1,23 @@
+import crypto from 'node:crypto';
+
+export type Client = {
+    name: string;
+    keySha256Sum: string;
+    /**
+     * In megabytes
+     */
+    quota?: number;
+};
+
+export type NoKeyClient = {
+    name: string;
+    quota?: number;
+};
+
+export function checkKey(key: string, client: Client): boolean {
+    const sha = crypto.createHash('sha256');
+    sha.update(key);
+    const hashed = sha.digest().toString('hex');
+
+    return client.keySha256Sum === hashed;
+}

src/config.ts

@@ -1,3 +1,5 @@
+import { Client, checkKey } from './client.js';
+
 import fsp from 'node:fs/promises';
 import Ajv from 'ajv';
 const ajv = new Ajv();
@@ -23,14 +25,7 @@ const config_validate = ajv.compile({
 });
 
 export class Config {
-    clients: {
-        name: string;
-        keySha256Sum: string;
-        /**
-         * In megabytes
-         */
-        quota?: number;
-    }[];
+    clients: Client[];
     storePath: string;
 
     static async load(): Promise<Config> {
@@ -56,6 +51,10 @@ export class Config {
 
         return raw;
     }
+
+    static getClientByKey(config: Config, key: string): Client | undefined {
+        return config.clients.find((client) => checkKey(key, client));
+    }
 }
 
 export const config = await Config.load();

src/routes/index.ts

@@ -1,6 +1,8 @@
 import { FastifyPluginAsync } from 'fastify';
 import upload from './upload.js';
+import list from './list.js';
 
 export default (async function (fastify) {
     await fastify.register(upload);
+    await fastify.register(list);
 } as FastifyPluginAsync);

src/routes/list.ts

@@ -0,0 +1,41 @@
+import { FastifyPluginAsync } from 'fastify';
+import fsp from 'node:fs/promises';
+import path from 'node:path';
+
+import { Config, config } from '../config.js';
+import { InvalidAuthorization } from '../errors.js';
+import { Stats } from 'node:fs';
+
+type ListFilesResponse = {
+    name: string;
+    created: Date;
+};
+
+export default (async function (fastify) {
+    fastify.get('/list', async (req) => {
+        const key = req.headers.authorization?.replace('Bearer ', '') ?? 'none';
+
+        const client = Config.getClientByKey(config, key);
+        if (!client) {
+            throw InvalidAuthorization();
+        }
+
+        const rawfl = await fsp.readdir(config.storePath);
+        const files: [Stats, string][] = await Promise.all(
+            rawfl
+                .filter((x) => x.startsWith(client.name + '-'))
+                .map(async (x) => [
+                    await fsp.stat(path.join(config.storePath, x)),
+                    x,
+                ]),
+        );
+
+        return files.map(
+            (x) =>
+                ({
+                    name: x[1].replace(client.name + '-', ''),
+                    created: x[0].birthtime,
+                }) as ListFilesResponse,
+        );
+    });
+} as FastifyPluginAsync);

src/routes/upload.ts

@@ -1,6 +1,5 @@
 import { FastifyPluginAsync } from 'fastify';
 import Ajv, { JSONSchemaType, type Schema } from 'ajv';
-import crypto from 'node:crypto';
 
 import {
     InvalidAuthorization,
@@ -8,7 +7,7 @@ import {
     QuotaExceeded,
     ValidationError,
 } from '../errors.js';
-import { config } from '../config.js';
+import { Config, config } from '../config.js';
 import { save } from '../store.js';
 
 type UploadPayload = {
@@ -27,11 +26,9 @@ const upload_schema = {
 
 export default (async function (fastify) {
     fastify.post('/upload', async (req) => {
-        const sha = crypto.createHash('sha256');
-        sha.update(req.headers.authorization?.replace('Bearer ', '') ?? 'none');
-        const key = sha.digest().toString('hex');
+        const key = req.headers.authorization?.replace('Bearer ', '') ?? 'none';
 
-        const client = config.clients.find((x) => x.keySha256Sum === key);
+        const client = Config.getClientByKey(config, key);
 
         if (!client) {
             throw InvalidAuthorization();

src/store.ts

@@ -2,10 +2,9 @@ import { config } from './config.js';
 
 import path from 'path';
 import fsp from 'node:fs/promises';
+import { NoKeyClient } from './client.js';
 
-function getClient(
-    clientName: string,
-): { name: string; quota: number } | undefined {
+function getClient(clientName: string): NoKeyClient | undefined {
     const client = config.clients.find((x) => x.name === clientName) as
         | { name: string; quota: number; keySha256Sum?: string }
         | undefined;
@@ -14,13 +13,9 @@ function getClient(
     return client;
 }
 
-function getClientOrThrowErr(
-    clientName: string,
-    error?: string,
-): { name: string; quota: number } {
+function getClientOrThrowErr(clientName: string, error?: string): NoKeyClient {
     const client = getClient(clientName);
-    if (typeof client === 'undefined')
-        throw Error(error ?? 'Client does not exist.');
+    if (!client) throw Error(error ?? 'Client does not exist.');
     return client;
 }
 
@@ -56,9 +51,10 @@ export async function save(
     const client = getClientOrThrowErr(clientName);
     const quota = await getTakenQuota(clientName);
 
-    if (data.length + quota > client.quota) {
-        return 'Quota exceeded';
-    }
+    if (client.quota)
+        if (data.length + quota > client.quota) {
+            return 'Quota exceeded';
+        }
 
     await fsp.writeFile(getPathFor(name, clientName), data);
 }