prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Command field empty in OSS-Fuzz testcases
  See https://oss-fuzz.com/testcase-detail/5204819744915456 for example.
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `src/python/bot/untrusted_runner/tasks_impl.py`
  Content:
  ```
  1 # Copyright 2019 Google LLC
  2 #
  3 # Licensed under the Apache License, Version 2.0 (the "License");
  4 # you may not use this file except in compliance with the License.
  5 # You may obtain a copy of the License at
  6 #
  7 #      http://www.apache.org/licenses/LICENSE-2.0
  8 #
  9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 """Tasks RPC implementations."""
  15 from __future__ import absolute_import
  16 
  17 from google.protobuf import wrappers_pb2
  18 from google.protobuf.any_pb2 import Any
  19 import six
  20 
  21 from . import protobuf_utils
  22 
  23 from bot import testcase_manager
  24 from bot.fuzzers import engine
  25 from bot.tasks import corpus_pruning_task
  26 from bot.tasks import fuzz_task
  27 from bot.tasks import minimize_task
  28 from datastore import data_types
  29 from protos import untrusted_runner_pb2
  30 from system import environment
  31 
  32 
  33 def _proto_to_fuzz_target(proto):
  34   """Convert protobuf to FuzzTarget."""
  35   return data_types.FuzzTarget(
  36       engine=proto.engine, project=proto.project, binary=proto.binary)
  37 
  38 
  39 def _proto_to_cross_pollinate_fuzzer(proto):
  40   """Convert protobuf to CrossPollinateFuzzer."""
  41   return corpus_pruning_task.CrossPollinateFuzzer(
  42       fuzz_target=_proto_to_fuzz_target(proto.fuzz_target),
  43       backup_bucket_name=proto.backup_bucket_name,
  44       corpus_engine_name=proto.corpus_engine_name)
  45 
  46 
  47 def prune_corpus(request, _):
  48   """Prune corpus."""
  49   context = corpus_pruning_task.Context(
  50       _proto_to_fuzz_target(request.fuzz_target), [
  51           _proto_to_cross_pollinate_fuzzer(proto)
  52           for proto in request.cross_pollinate_fuzzers
  53       ], environment.get_value('USE_MINIJAIL'))
  54 
  55   result = corpus_pruning_task.do_corpus_pruning(
  56       context, request.last_execution_failed, request.revision)
  57 
  58   # Intentionally skip edge and function coverage values as those would come
  59   # from fuzzer coverage cron task (see src/go/server/cron/coverage.go).
  60   coverage_info = untrusted_runner_pb2.CoverageInfo(
  61       corpus_size_units=result.coverage_info.corpus_size_units,
  62       corpus_size_bytes=result.coverage_info.corpus_size_bytes,
  63       corpus_location=result.coverage_info.corpus_location,
  64       corpus_backup_location=result.coverage_info.corpus_backup_location,
  65       quarantine_size_units=result.coverage_info.quarantine_size_units,
  66       quarantine_size_bytes=result.coverage_info.quarantine_size_bytes,
  67       quarantine_location=result.coverage_info.quarantine_location)
  68 
  69   crashes = [
  70       untrusted_runner_pb2.CorpusCrash(
  71           crash_state=crash.crash_state,
  72           crash_type=crash.crash_type,
  73           crash_address=crash.crash_address,
  74           crash_stacktrace=protobuf_utils.encode_utf8_if_unicode(
  75               crash.crash_stacktrace),
  76           unit_path=crash.unit_path,
  77           security_flag=crash.security_flag,
  78       ) for crash in result.crashes
  79   ]
  80 
  81   return untrusted_runner_pb2.PruneCorpusResponse(
  82       coverage_info=coverage_info,
  83       crashes=crashes,
  84       fuzzer_binary_name=result.fuzzer_binary_name,
  85       revision=result.revision)
  86 
  87 
  88 def process_testcase(request, _):
  89   """Process testcase."""
  90   tool_name_map = {
  91       untrusted_runner_pb2.ProcessTestcaseRequest.MINIMIZE: 'minimize',
  92       untrusted_runner_pb2.ProcessTestcaseRequest.CLEANSE: 'cleanse',
  93   }
  94 
  95   # TODO(ochang): Support other engines.
  96   assert request.engine == 'libFuzzer'
  97   assert request.operation in tool_name_map
  98 
  99   result = minimize_task.run_libfuzzer_engine(
  100       tool_name_map[request.operation], request.target_name, request.arguments,
  101       request.testcase_path, request.output_path, request.timeout)
  102 
  103   return untrusted_runner_pb2.EngineReproduceResult(
  104       return_code=result.return_code,
  105       time_executed=result.time_executed,
  106       output=result.output)
  107 
  108 
  109 def engine_fuzz(request, _):
  110   """Run engine fuzzer."""
  111   engine_impl = engine.get(request.engine)
  112   result, fuzzer_metadata = fuzz_task.run_engine_fuzzer(
  113       engine_impl, request.target_name, request.sync_corpus_directory,
  114       request.testcase_directory)
  115 
  116   crashes = [
  117       untrusted_runner_pb2.EngineCrash(
  118           input_path=crash.input_path,
  119           stacktrace=protobuf_utils.encode_utf8_if_unicode(crash.stacktrace),
  120           reproduce_args=crash.reproduce_args,
  121           crash_time=crash.crash_time) for crash in result.crashes
  122   ]
  123 
  124   packed_stats = {}
  125   for key, value in six.iteritems(result.stats):
  126     packed_value = Any()
  127     if isinstance(value, float):
  128       packed_value.Pack(wrappers_pb2.DoubleValue(value=value))
  129     elif isinstance(value, int):
  130       packed_value.Pack(wrappers_pb2.Int32Value(value=value))
  131     elif isinstance(value, six.string_types):
  132       packed_value.Pack(wrappers_pb2.StringValue(value=value))
  133     else:
  134       raise ValueError('Unknown stat type for ' + key)
  135 
  136     packed_stats[key] = packed_value
  137 
  138   return untrusted_runner_pb2.EngineFuzzResponse(
  139       logs=protobuf_utils.encode_utf8_if_unicode(result.logs),
  140       command=result.command,
  141       crashes=crashes,
  142       stats=packed_stats,
  143       time_executed=result.time_executed,
  144       fuzzer_metadata=fuzzer_metadata)
  145 
  146 
  147 def engine_reproduce(request, _):
  148   """Run engine reproduce."""
  149   engine_impl = engine.get(request.engine)
  150   result = testcase_manager.engine_reproduce(engine_impl, request.target_name,
  151                                              request.testcase_path,
  152                                              request.arguments, request.timeout)
  153   return untrusted_runner_pb2.EngineReproduceResult(
  154       return_code=result.return_code,
  155       time_executed=result.time_executed,
  156       output=result.output)
  157
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/src/python/bot/untrusted_runner/tasks_impl.py b/src/python/bot/untrusted_runner/tasks_impl.py
  --- a/src/python/bot/untrusted_runner/tasks_impl.py
  +++ b/src/python/bot/untrusted_runner/tasks_impl.py
  @@ -151,6 +151,7 @@
                                                request.testcase_path,
                                                request.arguments, request.timeout)
     return untrusted_runner_pb2.EngineReproduceResult(
  +      command=result.command,
         return_code=result.return_code,
         time_executed=result.time_executed,
         output=result.output)
  
verification_info: {"golden_diff": "diff --git a/src/python/bot/untrusted_runner/tasks_impl.py b/src/python/bot/untrusted_runner/tasks_impl.py\n--- a/src/python/bot/untrusted_runner/tasks_impl.py\n+++ b/src/python/bot/untrusted_runner/tasks_impl.py\n@@ -151,6 +151,7 @@\n                                              request.testcase_path,\n                                              request.arguments, request.timeout)\n   return untrusted_runner_pb2.EngineReproduceResult(\n+      command=result.command,\n       return_code=result.return_code,\n       time_executed=result.time_executed,\n       output=result.output)\n", "issue": "Command field empty in OSS-Fuzz testcases\nSee https://oss-fuzz.com/testcase-detail/5204819744915456 for example.\n", "before_files": [{"content": "# Copyright 2019 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\"\"\"Tasks RPC implementations.\"\"\"\nfrom __future__ import absolute_import\n\nfrom google.protobuf import wrappers_pb2\nfrom google.protobuf.any_pb2 import Any\nimport six\n\nfrom . import protobuf_utils\n\nfrom bot import testcase_manager\nfrom bot.fuzzers import engine\nfrom bot.tasks import corpus_pruning_task\nfrom bot.tasks import fuzz_task\nfrom bot.tasks import minimize_task\nfrom datastore import data_types\nfrom protos import untrusted_runner_pb2\nfrom system import environment\n\n\ndef _proto_to_fuzz_target(proto):\n  \"\"\"Convert protobuf to FuzzTarget.\"\"\"\n  return data_types.FuzzTarget(\n      engine=proto.engine, project=proto.project, binary=proto.binary)\n\n\ndef _proto_to_cross_pollinate_fuzzer(proto):\n  \"\"\"Convert protobuf to CrossPollinateFuzzer.\"\"\"\n  return corpus_pruning_task.CrossPollinateFuzzer(\n      fuzz_target=_proto_to_fuzz_target(proto.fuzz_target),\n      backup_bucket_name=proto.backup_bucket_name,\n      corpus_engine_name=proto.corpus_engine_name)\n\n\ndef prune_corpus(request, _):\n  \"\"\"Prune corpus.\"\"\"\n  context = corpus_pruning_task.Context(\n      _proto_to_fuzz_target(request.fuzz_target), [\n          _proto_to_cross_pollinate_fuzzer(proto)\n          for proto in request.cross_pollinate_fuzzers\n      ], environment.get_value('USE_MINIJAIL'))\n\n  result = corpus_pruning_task.do_corpus_pruning(\n      context, request.last_execution_failed, request.revision)\n\n  # Intentionally skip edge and function coverage values as those would come\n  # from fuzzer coverage cron task (see src/go/server/cron/coverage.go).\n  coverage_info = untrusted_runner_pb2.CoverageInfo(\n      corpus_size_units=result.coverage_info.corpus_size_units,\n      corpus_size_bytes=result.coverage_info.corpus_size_bytes,\n      corpus_location=result.coverage_info.corpus_location,\n      corpus_backup_location=result.coverage_info.corpus_backup_location,\n      quarantine_size_units=result.coverage_info.quarantine_size_units,\n      quarantine_size_bytes=result.coverage_info.quarantine_size_bytes,\n      quarantine_location=result.coverage_info.quarantine_location)\n\n  crashes = [\n      untrusted_runner_pb2.CorpusCrash(\n          crash_state=crash.crash_state,\n          crash_type=crash.crash_type,\n          crash_address=crash.crash_address,\n          crash_stacktrace=protobuf_utils.encode_utf8_if_unicode(\n              crash.crash_stacktrace),\n          unit_path=crash.unit_path,\n          security_flag=crash.security_flag,\n      ) for crash in result.crashes\n  ]\n\n  return untrusted_runner_pb2.PruneCorpusResponse(\n      coverage_info=coverage_info,\n      crashes=crashes,\n      fuzzer_binary_name=result.fuzzer_binary_name,\n      revision=result.revision)\n\n\ndef process_testcase(request, _):\n  \"\"\"Process testcase.\"\"\"\n  tool_name_map = {\n      untrusted_runner_pb2.ProcessTestcaseRequest.MINIMIZE: 'minimize',\n      untrusted_runner_pb2.ProcessTestcaseRequest.CLEANSE: 'cleanse',\n  }\n\n  # TODO(ochang): Support other engines.\n  assert request.engine == 'libFuzzer'\n  assert request.operation in tool_name_map\n\n  result = minimize_task.run_libfuzzer_engine(\n      tool_name_map[request.operation], request.target_name, request.arguments,\n      request.testcase_path, request.output_path, request.timeout)\n\n  return untrusted_runner_pb2.EngineReproduceResult(\n      return_code=result.return_code,\n      time_executed=result.time_executed,\n      output=result.output)\n\n\ndef engine_fuzz(request, _):\n  \"\"\"Run engine fuzzer.\"\"\"\n  engine_impl = engine.get(request.engine)\n  result, fuzzer_metadata = fuzz_task.run_engine_fuzzer(\n      engine_impl, request.target_name, request.sync_corpus_directory,\n      request.testcase_directory)\n\n  crashes = [\n      untrusted_runner_pb2.EngineCrash(\n          input_path=crash.input_path,\n          stacktrace=protobuf_utils.encode_utf8_if_unicode(crash.stacktrace),\n          reproduce_args=crash.reproduce_args,\n          crash_time=crash.crash_time) for crash in result.crashes\n  ]\n\n  packed_stats = {}\n  for key, value in six.iteritems(result.stats):\n    packed_value = Any()\n    if isinstance(value, float):\n      packed_value.Pack(wrappers_pb2.DoubleValue(value=value))\n    elif isinstance(value, int):\n      packed_value.Pack(wrappers_pb2.Int32Value(value=value))\n    elif isinstance(value, six.string_types):\n      packed_value.Pack(wrappers_pb2.StringValue(value=value))\n    else:\n      raise ValueError('Unknown stat type for ' + key)\n\n    packed_stats[key] = packed_value\n\n  return untrusted_runner_pb2.EngineFuzzResponse(\n      logs=protobuf_utils.encode_utf8_if_unicode(result.logs),\n      command=result.command,\n      crashes=crashes,\n      stats=packed_stats,\n      time_executed=result.time_executed,\n      fuzzer_metadata=fuzzer_metadata)\n\n\ndef engine_reproduce(request, _):\n  \"\"\"Run engine reproduce.\"\"\"\n  engine_impl = engine.get(request.engine)\n  result = testcase_manager.engine_reproduce(engine_impl, request.target_name,\n                                             request.testcase_path,\n                                             request.arguments, request.timeout)\n  return untrusted_runner_pb2.EngineReproduceResult(\n      return_code=result.return_code,\n      time_executed=result.time_executed,\n      output=result.output)\n", "path": "src/python/bot/untrusted_runner/tasks_impl.py"}], "after_files": [{"content": "# Copyright 2019 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\"\"\"Tasks RPC implementations.\"\"\"\nfrom __future__ import absolute_import\n\nfrom google.protobuf import wrappers_pb2\nfrom google.protobuf.any_pb2 import Any\nimport six\n\nfrom . import protobuf_utils\n\nfrom bot import testcase_manager\nfrom bot.fuzzers import engine\nfrom bot.tasks import corpus_pruning_task\nfrom bot.tasks import fuzz_task\nfrom bot.tasks import minimize_task\nfrom datastore import data_types\nfrom protos import untrusted_runner_pb2\nfrom system import environment\n\n\ndef _proto_to_fuzz_target(proto):\n  \"\"\"Convert protobuf to FuzzTarget.\"\"\"\n  return data_types.FuzzTarget(\n      engine=proto.engine, project=proto.project, binary=proto.binary)\n\n\ndef _proto_to_cross_pollinate_fuzzer(proto):\n  \"\"\"Convert protobuf to CrossPollinateFuzzer.\"\"\"\n  return corpus_pruning_task.CrossPollinateFuzzer(\n      fuzz_target=_proto_to_fuzz_target(proto.fuzz_target),\n      backup_bucket_name=proto.backup_bucket_name,\n      corpus_engine_name=proto.corpus_engine_name)\n\n\ndef prune_corpus(request, _):\n  \"\"\"Prune corpus.\"\"\"\n  context = corpus_pruning_task.Context(\n      _proto_to_fuzz_target(request.fuzz_target), [\n          _proto_to_cross_pollinate_fuzzer(proto)\n          for proto in request.cross_pollinate_fuzzers\n      ], environment.get_value('USE_MINIJAIL'))\n\n  result = corpus_pruning_task.do_corpus_pruning(\n      context, request.last_execution_failed, request.revision)\n\n  # Intentionally skip edge and function coverage values as those would come\n  # from fuzzer coverage cron task (see src/go/server/cron/coverage.go).\n  coverage_info = untrusted_runner_pb2.CoverageInfo(\n      corpus_size_units=result.coverage_info.corpus_size_units,\n      corpus_size_bytes=result.coverage_info.corpus_size_bytes,\n      corpus_location=result.coverage_info.corpus_location,\n      corpus_backup_location=result.coverage_info.corpus_backup_location,\n      quarantine_size_units=result.coverage_info.quarantine_size_units,\n      quarantine_size_bytes=result.coverage_info.quarantine_size_bytes,\n      quarantine_location=result.coverage_info.quarantine_location)\n\n  crashes = [\n      untrusted_runner_pb2.CorpusCrash(\n          crash_state=crash.crash_state,\n          crash_type=crash.crash_type,\n          crash_address=crash.crash_address,\n          crash_stacktrace=protobuf_utils.encode_utf8_if_unicode(\n              crash.crash_stacktrace),\n          unit_path=crash.unit_path,\n          security_flag=crash.security_flag,\n      ) for crash in result.crashes\n  ]\n\n  return untrusted_runner_pb2.PruneCorpusResponse(\n      coverage_info=coverage_info,\n      crashes=crashes,\n      fuzzer_binary_name=result.fuzzer_binary_name,\n      revision=result.revision)\n\n\ndef process_testcase(request, _):\n  \"\"\"Process testcase.\"\"\"\n  tool_name_map = {\n      untrusted_runner_pb2.ProcessTestcaseRequest.MINIMIZE: 'minimize',\n      untrusted_runner_pb2.ProcessTestcaseRequest.CLEANSE: 'cleanse',\n  }\n\n  # TODO(ochang): Support other engines.\n  assert request.engine == 'libFuzzer'\n  assert request.operation in tool_name_map\n\n  result = minimize_task.run_libfuzzer_engine(\n      tool_name_map[request.operation], request.target_name, request.arguments,\n      request.testcase_path, request.output_path, request.timeout)\n\n  return untrusted_runner_pb2.EngineReproduceResult(\n      return_code=result.return_code,\n      time_executed=result.time_executed,\n      output=result.output)\n\n\ndef engine_fuzz(request, _):\n  \"\"\"Run engine fuzzer.\"\"\"\n  engine_impl = engine.get(request.engine)\n  result, fuzzer_metadata = fuzz_task.run_engine_fuzzer(\n      engine_impl, request.target_name, request.sync_corpus_directory,\n      request.testcase_directory)\n\n  crashes = [\n      untrusted_runner_pb2.EngineCrash(\n          input_path=crash.input_path,\n          stacktrace=protobuf_utils.encode_utf8_if_unicode(crash.stacktrace),\n          reproduce_args=crash.reproduce_args,\n          crash_time=crash.crash_time) for crash in result.crashes\n  ]\n\n  packed_stats = {}\n  for key, value in six.iteritems(result.stats):\n    packed_value = Any()\n    if isinstance(value, float):\n      packed_value.Pack(wrappers_pb2.DoubleValue(value=value))\n    elif isinstance(value, int):\n      packed_value.Pack(wrappers_pb2.Int32Value(value=value))\n    elif isinstance(value, six.string_types):\n      packed_value.Pack(wrappers_pb2.StringValue(value=value))\n    else:\n      raise ValueError('Unknown stat type for ' + key)\n\n    packed_stats[key] = packed_value\n\n  return untrusted_runner_pb2.EngineFuzzResponse(\n      logs=protobuf_utils.encode_utf8_if_unicode(result.logs),\n      command=result.command,\n      crashes=crashes,\n      stats=packed_stats,\n      time_executed=result.time_executed,\n      fuzzer_metadata=fuzzer_metadata)\n\n\ndef engine_reproduce(request, _):\n  \"\"\"Run engine reproduce.\"\"\"\n  engine_impl = engine.get(request.engine)\n  result = testcase_manager.engine_reproduce(engine_impl, request.target_name,\n                                             request.testcase_path,\n                                             request.arguments, request.timeout)\n  return untrusted_runner_pb2.EngineReproduceResult(\n      command=result.command,\n      return_code=result.return_code,\n      time_executed=result.time_executed,\n      output=result.output)\n", "path": "src/python/bot/untrusted_runner/tasks_impl.py"}]}