Merge pull request #1058 from crazy-max/fix-dockerhub-oidc-error-handling

surface Docker Hub OIDC error responses

__tests__/dockerhub.test.ts

@@ -126,8 +126,14 @@ describe('getOIDCToken', () => {
     expect(core.info).toHaveBeenCalledWith('Docker Hub OIDC token request rate limited, retrying in 0ms (attempt 1/5)');
   });
 
-  test('throws Docker Hub API errors', async () => {
-    postSpy.mockResolvedValue(httpResponse(400, JSON.stringify({description: 'bad connection'})));
-    await expect(dockerhub.getOIDCToken('docker.io', 'dbowie')).rejects.toThrow('Docker Hub API: bad status code 400: bad connection');
+  test('throws Docker Hub OIDC error responses', async () => {
+    postSpy.mockResolvedValue(httpResponse(400, JSON.stringify({error: 'invalid_request', error_description: 'bad connection', error_uri: 'https://docs.docker.com'})));
+    await expect(dockerhub.getOIDCToken('docker.io', 'dbowie')).rejects.toThrow('Docker Hub API: bad status code 400: {"error":"invalid_request","error_description":"bad connection","error_uri":"https://docs.docker.com"}');
+  });
+
+  test('throws rate limited Docker Hub OIDC error response after retries', async () => {
+    postSpy.mockResolvedValue(httpResponse(429, JSON.stringify({error: 'rate_limited', error_description: 'slow down'}), {'retry-after': '0'}));
+    await expect(dockerhub.getOIDCToken('docker.io', 'dbowie')).rejects.toThrow('Docker Hub API: bad status code 429: {"error":"rate_limited","error_description":"slow down"}');
+    expect(postSpy).toHaveBeenCalledTimes(6);
   });
 });

src/dockerhub.ts

@@ -108,24 +108,19 @@ const handleResponse = async (resp: httpm.HttpClientResponse): Promise<string> =
 };
 
 const parseError = (statusCode: number, body: string): Error => {
+  if (body) {
+    let errResp: unknown;
+    try {
+      errResp = JSON.parse(body);
+    } catch {
+      errResp = undefined;
+    }
+    if (errResp !== undefined) {
+      throw new Error(`Docker Hub API: bad status code ${statusCode}: ${JSON.stringify(errResp)}`);
+    }
+  }
   if (statusCode === 401) {
     throw new Error(`Docker Hub API: operation not permitted`);
   }
-  if (body) {
-    const errResp = parseErrorBody(body);
-    for (const k of ['description', 'message', 'detail', 'error']) {
-      if (errResp[k]) {
-        throw new Error(`Docker Hub API: bad status code ${statusCode}: ${errResp[k]}`);
-      }
-    }
-  }
   throw new Error(`Docker Hub API: bad status code ${statusCode}`);
 };
-
-const parseErrorBody = (body: string): Record<string, string> => {
-  try {
-    return <Record<string, string>>JSON.parse(body);
-  } catch {
-    return {};
-  }
-};

yarn.lock

@@ -4853,12 +4853,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.3.16":
-  version: 3.3.16
-  resolution: "nanoid@npm:3.3.16"
+"nanoid@npm:^3.3.11":
+  version: 3.3.11
+  resolution: "nanoid@npm:3.3.11"
   bin:
     nanoid: bin/nanoid.cjs
-  checksum: 10/8004af92b5541af1dbd23b69845b5026f777d5b7ef07163cea1837aae86e052ced8b383cecbf8a4f1b5e77ae207df96dc45e16b9e0fa3c4b761d085f1e42851b
+  checksum: 10/73b5afe5975a307aaa3c95dfe3334c52cdf9ae71518176895229b8d65ab0d1c0417dd081426134eb7571c055720428ea5d57c645138161e7d10df80815527c48
   languageName: node
   linkType: hard
 
@@ -5281,13 +5281,13 @@ __metadata:
   linkType: hard
 
 "postcss@npm:^8.5.6":
-  version: 8.5.22
-  resolution: "postcss@npm:8.5.22"
+  version: 8.5.10
+  resolution: "postcss@npm:8.5.10"
   dependencies:
-    nanoid: "npm:^3.3.16"
+    nanoid: "npm:^3.3.11"
     picocolors: "npm:^1.1.1"
     source-map-js: "npm:^1.2.1"
-  checksum: 10/7944444f267f2d94c7caeed66f3da56d5b947bd4a7e57a166a5161af25c6006dd73f40e2a1a6822f3d7fccc2fa005778c03058368eb7efca1b5038aec55abd14
+  checksum: 10/7eac6169e535b63c8412e94d4f6047fc23efa3e9dde804b541940043c831b25f1cd867d83cd2c4371ad2450c8abcb42c208aa25668c1f0f3650d7f72faf711a8
   languageName: node
   linkType: hard