chore: log response headers for blocks

src/error/BlockedError.ts

@@ -2,10 +2,12 @@ import { BlockedReason } from '../types';
 
 export class BlockedError extends Error {
   public readonly reason: BlockedReason;
+  public readonly headers: Record<string, string[] | string | undefined>;
 
-  constructor(reason: BlockedReason) {
+  constructor(reason: BlockedReason, headers: Record<string, string[] | string | undefined>) {
     super();
 
     this.reason = reason;
+    this.headers = headers;
   }
 }

src/utils/Fetcher.ts

@@ -73,11 +73,11 @@ export class Fetcher {
     const responseHeaders = httpCacheItem.policy.responseHeaders();
 
     if (httpCacheItem.policy.responseHeaders()['cf-mitigated'] === 'challenge') {
-      throw new BlockedError('cloudflare_challenge');
+      throw new BlockedError('cloudflare_challenge', httpCacheItem.policy.responseHeaders());
     }
 
     if (httpCacheItem.status === 403) {
-      throw new BlockedError('unknown');
+      throw new BlockedError('unknown', httpCacheItem.policy.responseHeaders());
     }
 
     throw new Error(`Fetcher error: ${httpCacheItem.status}: ${httpCacheItem.statusText}, response headers: ${JSON.stringify(responseHeaders)}`);

src/utils/StreamResolver.test.ts

@@ -72,7 +72,7 @@ describe('resolve', () => {
           {
             url: new URL('https://example.com'),
             isExternal: true,
-            error: new BlockedError('cloudflare_challenge'),
+            error: new BlockedError('cloudflare_challenge', {}),
             label: 'hoster.com',
             sourceId: '',
             meta: {

src/utils/StreamResolver.ts

@@ -114,7 +114,7 @@ export class StreamResolver {
 
   private readonly logErrorAndReturnNiceString = (ctx: Context, source: string, error: unknown): string => {
     if (error instanceof BlockedError) {
-      this.logger.warn(`${source}: Request was blocked. Reason: ${error.reason}`, ctx);
+      this.logger.warn(`${source}: Request was blocked. Reason: ${error.reason}, headers: ${JSON.stringify(error.headers)}`, ctx);
 
       return '⚠️ Request was blocked.';
     }