added r2 binding support to cf adapter

app/src/media/storage/adapters/StorageR2Adapter.ts

@@ -1,137 +0,0 @@
-import { isDebug } from "core";
-import type { FileBody, StorageAdapter } from "../Storage";
-import { guessMimeType } from "../mime-types";
-
-/**
- * Adapter for R2 storage
- * @todo: add tests (bun tests won't work, need node native tests)
- */
-export class StorageR2Adapter implements StorageAdapter {
-   constructor(private readonly bucket: R2Bucket) {}
-
-   getName(): string {
-      return "r2";
-   }
-
-   getSchema() {
-      return undefined;
-   }
-
-   async putObject(key: string, body: FileBody) {
-      try {
-         const res = await this.bucket.put(key, body);
-         return res?.etag;
-      } catch (e) {
-         return undefined;
-      }
-   }
-   async listObjects(
-      prefix?: string
-   ): Promise<{ key: string; last_modified: Date; size: number }[]> {
-      const list = await this.bucket.list({ limit: 50 });
-      return list.objects.map((item) => ({
-         key: item.key,
-         size: item.size,
-         last_modified: item.uploaded
-      }));
-   }
-
-   private async headObject(key: string): Promise<R2Object | null> {
-      return await this.bucket.head(key);
-   }
-
-   async objectExists(key: string): Promise<boolean> {
-      return (await this.headObject(key)) !== null;
-   }
-
-   async getObject(key: string, headers: Headers): Promise<Response> {
-      let object: R2ObjectBody | null;
-      const responseHeaders = new Headers({
-         "Accept-Ranges": "bytes"
-      });
-
-      //console.log("getObject:headers", headersToObject(headers));
-      if (headers.has("range")) {
-         const options = isDebug()
-            ? {} // miniflare doesn't support range requests
-            : {
-                 range: headers,
-                 onlyIf: headers
-              };
-         object = (await this.bucket.get(key, options)) as R2ObjectBody;
-
-         if (!object) {
-            return new Response(null, { status: 404 });
-         }
-
-         if (object.range) {
-            const offset = "offset" in object.range ? object.range.offset : 0;
-            const end = "end" in object.range ? object.range.end : object.size - 1;
-            responseHeaders.set("Content-Range", `bytes ${offset}-${end}/${object.size}`);
-            responseHeaders.set("Connection", "keep-alive");
-            responseHeaders.set("Vary", "Accept-Encoding");
-         }
-      } else {
-         object = (await this.bucket.get(key)) as R2ObjectBody;
-
-         if (object === null) {
-            return new Response(null, { status: 404 });
-         }
-      }
-
-      //console.log("response headers:before", headersToObject(responseHeaders));
-      this.writeHttpMetadata(responseHeaders, object);
-      responseHeaders.set("etag", object.httpEtag);
-      responseHeaders.set("Content-Length", String(object.size));
-      responseHeaders.set("Last-Modified", object.uploaded.toUTCString());
-      //console.log("response headers:after", headersToObject(responseHeaders));
-
-      return new Response(object.body, {
-         status: object.range ? 206 : 200,
-         headers: responseHeaders
-      });
-   }
-
-   private writeHttpMetadata(headers: Headers, object: R2Object | R2ObjectBody): void {
-      let metadata = object.httpMetadata;
-      if (!metadata || Object.keys(metadata).length === 0) {
-         // guessing is especially required for dev environment (miniflare)
-         metadata = {
-            contentType: guessMimeType(object.key)
-         };
-      }
-      //console.log("writeHttpMetadata", object.httpMetadata, metadata);
-
-      for (const [key, value] of Object.entries(metadata)) {
-         const camelToDash = key.replace(/([A-Z])/g, "-$1").toLowerCase();
-         headers.set(camelToDash, value);
-      }
-   }
-
-   async getObjectMeta(key: string): Promise<{ type: string; size: number }> {
-      const head = await this.headObject(key);
-      if (!head) {
-         throw new Error("Object not found");
-      }
-
-      return {
-         type: String(head.httpMetadata?.contentType ?? "application/octet-stream"),
-         size: head.size
-      };
-   }
-
-   async deleteObject(key: string): Promise<void> {
-      await this.bucket.delete(key);
-   }
-
-   getObjectUrl(key: string): string {
-      throw new Error("Method getObjectUrl not implemented.");
-   }
-
-   toJSON(secrets?: boolean) {
-      return {
-         type: this.getName(),
-         config: {}
-      };
-   }
-}