feat: Cloudflare R2 对象存储支持

app/utils/r2_file_storage.ts

@@ -0,0 +1,61 @@
+import {
+  S3Client,
+  ListBucketsCommand,
+  ListObjectsV2Command,
+  GetObjectCommand,
+  PutObjectCommand,
+} from "@aws-sdk/client-s3";
+import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
+
+const R2_ACCOUNT_ID = process.env.R2_ACCOUNT_ID;
+const R2_ACCESS_KEY_ID = process.env.R2_ACCESS_KEY_ID;
+const R2_SECRET_ACCESS_KEY = process.env.R2_SECRET_ACCESS_KEY;
+const R2_BUCKET = process.env.R2_BUCKET;
+
+const getR2Client = () => {
+  return new S3Client({
+    region: "auto",
+    endpoint: `https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com`,
+    credentials: {
+      accessKeyId: R2_ACCESS_KEY_ID!,
+      secretAccessKey: R2_SECRET_ACCESS_KEY!,
+    },
+  });
+};
+
+export default class S3FileStorage {
+  static async get(fileName: string) {
+    const file = await getR2Client().send(
+      new GetObjectCommand({
+        Bucket: R2_BUCKET,
+        Key: fileName,
+      }),
+    );
+
+    if (!file) {
+      throw new Error("not found.");
+    }
+
+    return file.Body;
+  }
+
+  static async put(fileName: string, data: Buffer) {
+    const signedUrl = await getSignedUrl(
+      getR2Client(),
+      new PutObjectCommand({
+        Bucket: R2_BUCKET,
+        Key: fileName,
+      }),
+      { expiresIn: 60 },
+    );
+
+    console.log(signedUrl);
+
+    await fetch(signedUrl, {
+      method: "PUT",
+      body: data,
+    });
+
+    return `/api/file/${fileName}`;
+  }
+}