Make fuzz crashes uworker safe

src/clusterfuzz/_internal/bot/tasks/setup.py

@@ -779,11 +779,13 @@ def get_fuzzer_directory(fuzzer_name):
   return fuzzer_directory
 
 
-def archive_testcase_and_dependencies_in_gcs(resource_list, testcase_path):
-  """Archive testcase and its dependencies, and store in blobstore."""
+def archive_testcase_and_dependencies_in_gcs(resource_list, testcase_path: str,
+                                             upload_url: str):
+  """Archive testcase and its dependencies, and store in blobstore. Returns
+  whether it is archived, the absolute_filename, and the zip_filename."""
   if not os.path.exists(testcase_path):
     logs.log_error('Unable to find testcase %s.' % testcase_path)
-    return None, None, None, None
+    return None, None, None
 
   absolute_filename = testcase_path
   archived = False
@@ -810,7 +812,7 @@ def archive_testcase_and_dependencies_in_gcs(resource_list, testcase_path):
       file_handle = open(testcase_path, 'rb')
     except OSError:
       logs.log_error('Unable to open testcase %s.' % testcase_path)
-      return None, None, None, None
+      return None, None, None
   else:
     # If there are resources, create an archive.
 
@@ -852,16 +854,19 @@ def archive_testcase_and_dependencies_in_gcs(resource_list, testcase_path):
       file_handle = open(zip_path, 'rb')
     except OSError:
       logs.log_error('Unable to open testcase archive %s.' % zip_path)
-      return None, None, None, None
+      return None, None, None
 
     archived = True
     absolute_filename = testcase_path[base_len:]
 
-  fuzzed_key = blobs.write_blob(file_handle)
+  if not storage.upload_signed_url(file_handle, upload_url):
+    logs.log_error('Failed to upload testcase.')
+    return None, None, None
+
   file_handle.close()
 
   # Don't need the archive after writing testcase to blobstore.
   if zip_path:
     shell.remove_file(zip_path)
 
-  return fuzzed_key, archived, absolute_filename, zip_filename
+  return archived, absolute_filename, zip_filename

src/clusterfuzz/_internal/bot/tasks/utasks/__init__.py

@@ -269,6 +269,8 @@ def uworker_main(input_download_url) -> None:
 
     logs.log('Starting utask_main: %s.' % utask_module)
     uworker_output = utask_module.utask_main(uworker_input)
+    uworker_output.bot_name = environment.get_value('BOT_NAME', '')
+    uworker_output.platform_id = environment.get_platform_id()
     uworker_io.serialize_and_upload_uworker_output(uworker_output,
                                                    uworker_output_upload_url)
     logs.log('Finished uworker_main.')