fix(api): 🚚 Rename "id" to "hash"

server/api/media/:hash/:name/index.ts

@@ -0,0 +1,64 @@
+import { applyConfig, handleZodError } from "@/api";
+import { errorResponse, response } from "@/response";
+import { zValidator } from "@hono/zod-validator";
+import type { Hono } from "hono";
+import { z } from "zod";
+
+export const meta = applyConfig({
+    allowedMethods: ["GET"],
+    route: "/media/:hash/:name",
+    ratelimits: {
+        max: 100,
+        duration: 60,
+    },
+    auth: {
+        required: false,
+    },
+});
+
+export const schemas = {
+    param: z.object({
+        hash: z.string(),
+        name: z.string(),
+    }),
+    header: z.object({
+        range: z.string().optional().default(""),
+    }),
+};
+
+export default (app: Hono) =>
+    app.on(
+        meta.allowedMethods,
+        meta.route,
+        zValidator("param", schemas.param, handleZodError),
+        zValidator("header", schemas.header, handleZodError),
+        async (context) => {
+            const { hash, name } = context.req.valid("param");
+            const { range } = context.req.valid("header");
+
+            // parse `Range` header
+            const [start = 0, end = Number.POSITIVE_INFINITY] = (
+                range
+                    .split("=") // ["Range: bytes", "0-100"]
+                    .at(-1) || ""
+            ) // "0-100"
+                .split("-") // ["0", "100"]
+                .map(Number); // [0, 100]
+
+            // Serve file from filesystem
+            const file = Bun.file(`./uploads/${hash}/${name}`);
+
+            const buffer = await file.arrayBuffer();
+
+            if (!(await file.exists())) {
+                return errorResponse("File not found", 404);
+            }
+
+            // Can't directly copy file into Response because this crashes Bun for now
+            return response(buffer, 200, {
+                "Content-Type": file.type || "application/octet-stream",
+                "Content-Length": `${file.size - start}`,
+                "Content-Range": `bytes ${start}-${end}/${file.size}`,
+            });
+        },
+    );