feat(game): upload editor images to image service

2026-08-06 15:52:54 +00:00
parent 57800d8574
commit e198f70756
9 changed files with 160 additions and 25 deletions
@@ -0,0 +1,52 @@
+import { createHash, createHmac, randomUUID } from 'node:crypto';
+
+export interface ContentImageUploadResult {
+    publicUrl: string;
+}
+
+export interface ContentImageUploadStore {
+    upload(input: { filename: string; contentType: string; body: Buffer }): Promise<ContentImageUploadResult>;
+}
+
+export class RemoteContentImageStore implements ContentImageUploadStore {
+    constructor(
+        private readonly baseUrl: string,
+        private readonly publicBaseUrl: string,
+        private readonly secret: string,
+        private readonly fetchImpl: typeof fetch = fetch,
+        private readonly now: () => number = Date.now
+    ) {}
+
+    async upload(input: { filename: string; contentType: string; body: Buffer }): Promise<ContentImageUploadResult> {
+        if (!/^[a-f0-9]{32}\.(?:avif|webp|jpg|png|gif)$/.test(input.filename)) {
+            throw new Error('Invalid content image filename.');
+        }
+        const pathname = `/v1/uploads/content/core2026/${input.filename}`;
+        const expires = String(Math.floor(this.now() / 1000) + 60);
+        const requestId = randomUUID();
+        const digest = createHash('sha256').update(input.body).digest('hex');
+        const signature = createHmac('sha256', this.secret)
+            .update(`${expires}.${requestId}.${pathname}.${input.contentType}.${digest}`)
+            .digest('hex');
+        const response = await this.fetchImpl(`${this.baseUrl.replace(/\/$/, '')}${pathname}`, {
+            method: 'PUT',
+            headers: {
+                'content-type': input.contentType,
+                'x-image-client': 'core2026',
+                'x-image-expires': expires,
+                'x-image-request-id': requestId,
+                'x-image-signature': signature,
+            },
+            body: input.body,
+        });
+        if (!response.ok) {
+            throw new Error(`Image repository upload failed with HTTP ${response.status}.`);
+        }
+        const expectedPath = `uploads/core2026/${input.filename}`;
+        const payload: unknown = await response.json();
+        if (!payload || typeof payload !== 'object' || !('path' in payload) || payload.path !== expectedPath) {
+            throw new Error('Image repository returned an unexpected content path.');
+        }
+        return { publicUrl: `${this.publicBaseUrl.replace(/\/$/, '')}/${input.filename}` };
+    }
+}