ROLLOUT 2 · Backblaze/B2_Command_Line_Tool
backblaze__b2_command_line_tool-488
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453 stotal time
5tool calls
5model calls
5,758tokens generated
40,096prompt tokens read
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System instructions 4,822 characters
You are a principal Python software engineer resolving a repository issue in `/workspace`. Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run. ## Critical Environment & Grader Rules 1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`. 2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files. 3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`. 4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks: `pytest path/to/test_file.py -k pattern -q --tb=short --no-header` If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off. 5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission. ## Execution Protocol ### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls) - The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories. - Run a single compound `run_command` with `grep -rn --include="*.py"` to locate: (a) the exact symbols, error strings, or functions from the problem description, (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and (c) the closest existing unit test files under `tests/`. ### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls) - Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests. - Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types. ### Phase 3 — Reproduce Bug in One Call (1 tool call) - Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts. ### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls) - Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`. - Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests. - **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`. ### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls) - Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`. - Run `git status --short && git diff` via `run_command`. Confirm: - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately), - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched), - Minimal, clean diff with valid imports and indentation. - Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 6,466 characters
You are evaluating a software engineering task for repository Backblaze/B2_Command_Line_Tool.
Problem Statement:
b2.api.B2Api.get_bucket_by_name does not work with bucket-scoped application keys
I am using Duplicity 0.7.17 and b2 1.3.2.
duplicity is executed using
```
duplicity \
--verbosity debug \
/backup \
"b2://$B2_APP_KEY_ID:$B2_APP_KEY@$B2_BUCKET_NAME"
```
Where `$B2_APP_KEY_ID` and `$B2_APP_KEY` are URL-encoded strings which were output from a call to:
```
b2 create-key \
--bucket "$B2_BUCKET_NAME" \
"$B2_KEY_NAME" \
listFiles,readFiles,writeFiles,deleteFiles,listBuckets
```
Duplicity fails with the following traceback:
```
Traceback (innermost last):
File "/usr/local/bin/duplicity", line 1555, in <module>
with_tempdir(main)
File "/usr/local/bin/duplicity", line 1541, in with_tempdir
fn()
File "/usr/local/bin/duplicity", line 1380, in main
action = commandline.ProcessCommandLine(sys.argv[1:])
File "/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py", line 1135, in ProcessCommandLine
backup, local_pathname = set_backend(args[0], args[1])
File "/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py", line 1010, in set_backend
globals.backend = backend.get_backend(bend)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backend.py", line 223, in get_backend
obj = get_backend_object(url_string)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backend.py", line 209, in get_backend_object
return factory(pu)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backends/b2backend.py", line 87, in __init__
self.bucket = self.service.get_bucket_by_name(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 222, in get_bucket_by_name
for bucket in self.list_buckets():
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 251, in list_buckets
self.check_bucket_restrictions(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
Internally<sup>[[1]](https://bazaar.launchpad.net/~duplicity-team/duplicity/0.8-series/view/head:/duplicity/backends/b2backend.py#L88)</sup>, Duplicity uses `b2.api.B2Api.get_bucket_by_name`, passing in the name of the bucket. This method calls `b2.api.B2Api.list_buckets` without passing the bucket name, so we get the permission error indicated above.
This looks related to changes in #474.
## Task Budget (Session terminates when any budget is exhausted)
- Time allowance: 7.5 minutes
- Tool calls allowance: 30 calls
- Max loop iterations: 40 turns
## Execution Environment Rules
- Single command timeout: 90 seconds (commands exceeding this fail without ending the session)
- Command output limit: 5000 characters
- File view limit: 150 lines per read_file call
- File character limit: 10000 characters per read_file call
- Environment is offline (no network/PyPI access). All repository and test dependencies are ALREADY pre-installed. Do NOT attempt to run pip install or download packages.
## Instructions:
0. All source code is under `/workspace`. Do NOT search outside `/workspace` (e.g. `/usr/`, `/wheels/`, system site-packages). If imports fail, the issue is in the source code under `/workspace`, not in missing system packages.
1. Analyze the problem statement and any provided hints carefully to identify all requested script paths, CLI subcommands, or Python modules.
2. Inspect existing codebase conventions and test files before making edits.
3. Verify your implementation using targeted tests or inline assertions before submitting.
4. Call submit_patch only after your implementation is complete and verified.
5. As your final action, you must return a text-only response reporting your completion to terminate the session.
## Workspace Layout
The repository is located at `/workspace`. Here is the directory tree (up to 3 levels):
```
./LICENSE
./MANIFEST.in
./Makefile
./README.md
./README.release.md
./appveyor.yml
./b2
./b2/__init__.py
./b2/__main__.py
./b2/account_info
./b2/account_info/__init__.py
./b2/account_info/abstract.py
./b2/account_info/exception.py
./b2/account_info/in_memory.py
./b2/account_info/sqlite_account_info.py
./b2/account_info/test_upload_url_concurrency.py
./b2/account_info/upload_url_pool.py
./b2/api.py
./b2/b2http.py
./b2/bounded_queue_executor.py
./b2/bucket.py
./b2/cache.py
./b2/console_tool.py
./b2/download_dest.py
./b2/exception.py
./b2/file_version.py
./b2/parse_args.py
./b2/part.py
./b2/progress.py
./b2/raw_api.py
./b2/raw_simulator.py
./b2/session.py
./b2/sync
./b2/sync/__init__.py
./b2/sync/action.py
./b2/sync/exception.py
./b2/sync/file.py
./b2/sync/folder.py
./b2/sync/folder_parser.py
./b2/sync/policy.py
./b2/sync/policy_manager.py
./b2/sync/report.py
./b2/sync/scan_policies.py
./b2/sync/sync.py
./b2/transferer.py
./b2/unfinished_large_file.py
./b2/upload_source.py
./b2/utils.py
./b2/version.py
./ci
./ci/appveyor
./ci/appveyor/install.ps1
./ci/appveyor/run_with_env.cmd
./contrib
./contrib/bash_completion
./contrib/bash_completion/b2
./contrib/color-b2-logs.sh
./contrib/debug_logs.ini
./doc
./doc/Makefile
./doc/bash_completion.md
./doc/source
./doc/source/b2.account_info.rst
./doc/source/b2.rst
./doc/source/b2.sync.rst
./doc/source/conf.py
./doc/source/index.rst
./doc/source/modules.rst
./pre-commit.sh
./requirements-setup.txt
./requirements-test.txt
./requirements.txt
./run-unit-tests.sh
./setup.cfg
./setup.py
./test
./test/__init__.py
./test/stub_account_info.py
./test/test_account_info.py
./test/test_api.py
./test/test_b2http.py
./test/test_base.py
./test/test_bounded_queue_executor.py
./test/test_bucket.py
./test/test_console_tool.py
./test/test_download_dest.py
./test/test_exception.py
./test/test_parse_args.py
./test/test_policy.py
./test/test_progress.py
./test/test_raw_api.py
./test/test_scan_policies.py
./test/test_session.py
./test/test_sync.py
./test/test_sync_report.py
./test/test_utils.py
./test_b2_command_line.py
```
Turn 1at 35 s604 tokens out4,327 prompt tokens
The user is reporting an issue where `b2.api.B2Api.get_bucket_by_name` fails when using bucket-scoped application keys.
The traceback provided shows:
```python
File "/usr/local/lib/python2.7/dist-packages/duplicity/backends/b2backend.py", line 87, in __init__
self.bucket = self.service.get_bucket_by_name(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 222, in get_bucket_by_name
for bucket in self.list_buckets():
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 251, in list_buckets
self.check_bucket_restrictions(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
The problem is that `get_bucket_by_name` calls `list_buckets()` without passing the `bucket_name` to it (or rather, `list_buckets` is called, and it might be calling `check_bucket_restrictions` with `bucket_name=None` or something that triggers the `RestrictedBucket` exception when the key is restricted to a specific bucket).
Wait, let me look at the traceback again.
`get_bucket_by_name` calls `self.list_buckets()`.
`list_buckets` calls `self.check_bucket_restrictions(bucket_name)`.
Wait, if `list_buckets` is called without arguments, `bucket_name` inside `list_buckets` might be `None` or a default value.
Let's examine `b2/api.py`.
TOOL CALL · run_command
{
"command": "grep -rn --include=\"*.py\" \"get_bucket_by_name\" ."
}Result of run_command 2,629 characters
{
"status": "ok",
"stdout": "./test/test_console_tool.py:388: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:395: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:603: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:610: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:794: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:829: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:873: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:913: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_console_tool.py:1070: bucket = self.b2_api.get_bucket_by_name('my-bucket')\n./test/test_policy.py:69: api.get_bucket_by_name.return_value = bucket\n./test/test_sync.py:248: self.api.get_bucket_by_name.return_value = self.bucket\n./b2/api.py:206: def get_bucket_by_name(self, bucket_name):\n./b2/api.py:263: bucket_id = self.get_bucket_by_name(bucket_name).id_\n./b2/raw_simulator.py:709: bucket = self._get_bucket_by_name(bucket_name)\n./b2/raw_simulator.py:924: def _get_bucket_by_name(self, bucket_name):\n./b2/sync/folder.py:230: self.bucket = api.get_bucket_by_name(bucket_name)\n./b2/console_tool.py:299: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:405: bucket_id_or_none = self.api.get_bucket_by_name(args.bucket).id_\n./b2/console_tool.py:433: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:529: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:656: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:691: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:733: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:779: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:802: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:932: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:983: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:1236: bucket = self.api.get_bucket_by_name(args.bucketName)\n./b2/console_tool.py:1303: bucket = self.api.get_bucket_by_name(args.bucketName)\n",
"stderr": "",
"exit_code": 0
}Generated tokens 604 tokens · stopped: STOP
<|channel>thought
The user is reporting an issue where `b2.api.B2Api.get_bucket_by_name` fails when using bucket-scoped application keys.
The traceback provided shows:
```python
File "/usr/local/lib/python2.7/dist-packages/duplicity/backends/b2backend.py", line 87, in __init__
self.bucket = self.service.get_bucket_by_name(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 222, in get_bucket_by_name
for bucket in self.list_buckets():
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 251, in list_buckets
self.check_bucket_restrictions(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
The problem is that `get_bucket_by_name` calls `list_buckets()` without passing the `bucket_name` to it (or rather, `list_buckets` is called, and it might be calling `check_bucket_restrictions` with `bucket_name=None` or something that triggers the `RestrictedBucket` exception when the key is restricted to a specific bucket).
Wait, let me look at the traceback again.
`get_bucket_by_name` calls `self.list_buckets()`.
`list_buckets` calls `self.check_bucket_restrictions(bucket_name)`.
Wait, if `list_buckets` is called without arguments, `bucket_name` inside `list_buckets` might be `None` or a default value.
Let's examine `b2/api.py`.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn --include="*.py" "get_bucket_by_name" .<|"|>}<tool_call|><|tool_response>
Turn 2at 39 s77 tokens out6,011 prompt tokens
Okay, the core logic is in `b2/api.py:206`. Let's read `b2/api.py` around line 206.
TOOL CALL · read_file
{
"end_line": 380,
"filepath": "b2/api.py",
"start_line": 200
}Result of read_file 6,531 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": " )\n return self.transferer.download_file_from_url(url, download_dest, progress_listener, range_)\n\n def get_bucket_by_id(self, bucket_id):\n return Bucket(self, bucket_id)\n\n def get_bucket_by_name(self, bucket_name):\n \"\"\"\n Returns the bucket_id for the given bucket_name.\n\n If we don't already know it from the cache, try fetching it from\n the B2 service.\n \"\"\"\n # If we can get it from the stored info, do that.\n self.check_bucket_restrictions(bucket_name)\n id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)\n if id_ is not None:\n return Bucket(self, id_, name=bucket_name)\n\n for bucket in self.list_buckets():\n if bucket.name == bucket_name:\n return bucket\n raise NonExistentBucket(bucket_name)\n\n def delete_bucket(self, bucket):\n \"\"\"\n Deletes the bucket remotely.\n For legacy reasons it returns whatever server sends in response,\n but API user should not rely on the response: if it doesn't raise\n an exception, it means that the operation was a success\n \"\"\"\n account_id = self.account_info.get_account_id()\n return self.session.delete_bucket(account_id, bucket.id_)\n\n def list_buckets(self, bucket_name=None):\n \"\"\"\n Calls b2_list_buckets and returns a list of buckets.\n\n When no bucket name is specified, returns *all* of the buckets\n in the account. When a bucket name is given, returns just that\n bucket. When authorized with an application key restricted to\n one bucket, you must specify the bucket name, or the request\n will be unauthorized.\n\n :param bucket_name: Optional: the name of the one bucket to return.\n :return: A list of Bucket objects.\n \"\"\"\n account_id = self.account_info.get_account_id()\n self.check_bucket_restrictions(bucket_name)\n\n # TEMPORARY work around until we fix the API endpoint bug that things requests\n # with a bucket name are not authorized. When it's fixed, well just pass the\n # bucket name (or None) to the raw API.\n if bucket_name is None:\n bucket_id = None\n else:\n allowed = self.account_info.get_allowed()\n if allowed['bucketId'] is not None:\n # We just checked that if there is a bucket restriction we have a bucket name\n # and it matches. So if there's a restriction we know that's the bucket we're\n # looking for.\n bucket_id = allowed['bucketId']\n else:\n bucket_id = self.get_bucket_by_name(bucket_name).id_\n\n response = self.session.list_buckets(account_id, bucket_id=bucket_id)\n buckets = BucketFactory.from_api_response(self, response)\n\n if bucket_name is not None:\n # If a bucket_name is specified we don't clear the cache because the other buckets could still\n # be valid. So we save the one bucket returned from the list_buckets call.\n for bucket in buckets:\n self.cache.save_bucket(bucket)\n else:\n # Otherwise we want to clear the cache and save the buckets returned from list_buckets\n # since we just got a new list of all the buckets for this account.\n self.cache.set_bucket_name_cache(buckets)\n return buckets\n\n def list_parts(self, file_id, start_part_number=None, batch_size=None):\n \"\"\"\n Generator that yields a Part for each of the parts that have been uploaded.\n\n :param file_id: the ID of the large file that is not finished\n :param start_part_number: the first part number to return. defaults to the first part.\n :param batch_size: the number of parts to fetch at a time from the server\n \"\"\"\n batch_size = batch_size or 100\n while True:\n response = self.session.list_parts(file_id, start_part_number, batch_size)\n for part_dict in response['parts']:\n yield PartFactory.from_list_parts_dict(part_dict)\n start_part_number = response.get('nextPartNumber')\n if start_part_number is None:\n break\n\n # delete/cancel\n def cancel_large_file(self, file_id):\n response = self.session.cancel_large_file(file_id)\n return FileVersionInfoFactory.from_cancel_large_file_response(response)\n\n def delete_file_version(self, file_id, file_name):\n # filename argument is not first, because one day it may become optional\n response = self.session.delete_file_version(file_id, file_name)\n assert response['fileId'] == file_id\n assert response['fileName'] == file_name\n return FileIdAndName(file_id, file_name)\n\n # download\n def get_download_url_for_fileid(self, file_id):\n url = url_for_api(self.account_info, 'b2_download_file_by_id')\n return '%s?fileId=%s' % (url, file_id)\n\n def get_download_url_for_file_name(self, bucket_name, file_name):\n \"\"\"\n Returns a URL to download the given file by name.\n \"\"\"\n self.check_bucket_restrictions(bucket_name)\n return '%s/file/%s/%s' % (\n self.account_info.get_download_url(), bucket_name, b2_url_encode(file_name)\n )\n\n # keys\n def create_key(\n self, capabilities, key_name, valid_duration_seconds=None, bucket_id=None, name_prefix=None\n ):\n account_id = self.account_info.get_account_id()\n\n response = self.session.create_key(\n account_id,\n capabilities=capabilities,\n key_name=key_name,\n valid_duration_seconds=valid_duration_seconds,\n bucket_id=bucket_id,\n name_prefix=name_prefix\n )\n\n assert set(response['capabilities']) == set(capabilities)\n assert response['keyName'] == key_name\n\n return response\n\n def delete_key(self, application_key_id):\n\n response = self.session.delete_key(application_key_id=application_key_id)\n return response\n\n def list_keys(self, start_application_key_id=None):\n account_id = self.account_info.get_account_id()\n",
"start_line": 200,
"end_line": 349,
"total_lines": 372,
"is_truncated": true
}Generated tokens 77 tokens · stopped: STOP
Okay, the core logic is in `b2/api.py:206`.
Let's read `b2/api.py` around line 206.
<channel|><|tool_call>call:read_file{end_line:380,filepath:<|"|>b2/api.py<|"|>,start_line:200}<tool_call|><|tool_response>
Turn 3at 66 s528 tokens out7,929 prompt tokens
The user says the problem is in `get_bucket_by_name`.
```python
def get_bucket_by_name(self, bucket_name):
"""
Returns the bucket_id for the given bucket_name.
If we don't already know it from the cache, try fetching it from
the B2 service.
"""
# If we can get it from the stored info, do that.
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
And `list_buckets`:
```python
def list_buckets(self, bucket_name=None):
"""
Calls b2_list_buckets and returns a list of buckets.
When no bucket name is specified, returns *all* of the buckets
in the account. When a bucket name is given, returns just that
bucket. When authorized with an application key restricted to
one bucket, you must specify the bucket name, or the request
will be unauthorized.
:param bucket_name: Optional: the name of the one bucket to return.
:return: A list of Bucket objects.
"""
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
...
```
If `get_bucket_by_name(bucket_name)` is called, and it's not in the cache, it calls `self.list_buckets()`.
But `list_buckets()` is called without arguments, so `bucket_name=None`.
Then `self.check_bucket_restrictions(None)` is called inside `list_buckets`.
Let's see `check_bucket_restrictions`. I need to read more of `b2/api.py`.
TOOL CALL · read_file
{
"end_line": 380,
"filepath": "b2/api.py",
"start_line\"": 350
}Result of read_file 5,966 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": "######################################################################\n#\n# File: b2/api.py\n#\n# Copyright 2018 Backblaze Inc. All Rights Reserved.\n#\n# License https://www.backblaze.com/using_b2_code.html\n#\n######################################################################\n\nimport six\n\nfrom .account_info.sqlite_account_info import SqliteAccountInfo\nfrom .account_info.exception import MissingAccountData\nfrom .b2http import B2Http\nfrom .bucket import Bucket, BucketFactory\nfrom .cache import AuthInfoCache, DummyCache\nfrom .transferer import Transferer\nfrom .exception import NonExistentBucket, RestrictedBucket\nfrom .file_version import FileVersionInfoFactory, FileIdAndName\nfrom .part import PartFactory\nfrom .raw_api import B2RawApi\nfrom .session import B2Session\nfrom .utils import B2TraceMeta, b2_url_encode, limit_trace_arguments\n\ntry:\n import concurrent.futures as futures\nexcept ImportError:\n import futures\n\n\ndef url_for_api(info, api_name):\n if api_name in ['b2_download_file_by_id']:\n base = info.get_download_url()\n else:\n base = info.get_api_url()\n return base + '/b2api/v1/' + api_name\n\n\n@six.add_metaclass(B2TraceMeta)\nclass B2Api(object):\n \"\"\"\n Provides file-level access to B2 services.\n\n While B2RawApi provides direct access to the B2 web APIs, this\n class handles several things that simplify the task of uploading\n and downloading files:\n - re-acquires authorization tokens when they expire\n - retrying uploads when an upload URL is busy\n - breaking large files into parts\n - emulating a directory structure (B2 buckets are flat)\n\n Adds an object-oriented layer on top of the raw API, so that\n buckets and files returned are Python objects with accessor\n methods.\n\n Also, keeps a cache of information needed to access the service,\n such as auth tokens and upload URLs.\n \"\"\"\n\n def __init__(self, account_info=None, cache=None, raw_api=None, max_upload_workers=10):\n \"\"\"\n Initializes the API using the given account info.\n :param account_info:\n :param cache:\n :param raw_api:\n :return:\n \"\"\"\n self.raw_api = raw_api or B2RawApi(B2Http())\n if account_info is None:\n account_info = SqliteAccountInfo()\n if cache is None:\n cache = AuthInfoCache(account_info)\n self.session = B2Session(self, self.raw_api)\n self.transferer = Transferer(self.session, account_info)\n self.account_info = account_info\n if cache is None:\n cache = DummyCache()\n self.cache = cache\n self.upload_executor = None\n self.max_workers = max_upload_workers\n\n def set_thread_pool_size(self, max_workers):\n \"\"\"\n Sets the size of the thread pool to use for uploads and downloads.\n\n Must be called before any work starts, or the thread pool will get\n the default size of 1.\n \"\"\"\n if self.upload_executor is not None:\n raise Exception('thread pool already created')\n self.max_workers = max_workers\n\n def get_thread_pool(self):\n \"\"\"\n Returns the thread pool executor to use for uploads and downloads.\n \"\"\"\n if self.upload_executor is None:\n self.upload_executor = futures.ThreadPoolExecutor(max_workers=self.max_workers)\n return self.upload_executor\n\n def authorize_automatically(self):\n try:\n self.authorize_account(\n self.account_info.get_realm(),\n self.account_info.get_account_id(),\n self.account_info.get_application_key(),\n )\n except MissingAccountData:\n return False\n return True\n\n @limit_trace_arguments(only=('self', 'realm'))\n def authorize_account(self, realm, account_id_or_key_id, application_key):\n # Clean up any previous account info if it was for a different account.\n try:\n old_account_id = self.account_info.get_account_id()\n old_realm = self.account_info.get_realm()\n if account_id_or_key_id != old_account_id or realm != old_realm:\n self.cache.clear()\n except MissingAccountData:\n self.cache.clear()\n\n # Authorize\n realm_url = self.account_info.REALM_URLS[realm]\n response = self.raw_api.authorize_account(realm_url, account_id_or_key_id, application_key)\n allowed = response['allowed']\n\n # If there is a bucket restriction, get the name of the bucket.\n # And, if we have a list of the one allowed bucket, go ahead and\n # save it.\n if 'listBuckets' in allowed['capabilities']:\n if allowed['bucketId'] is not None:\n allowed_bucket_response = self.raw_api.list_buckets(\n api_url=response['apiUrl'],\n account_auth_token=response['authorizationToken'],\n account_id=response['accountId'],\n bucket_id=allowed['bucketId'],\n )\n allowed_bucket_list = allowed_bucket_response['buckets']\n allowed_bucket_count = len(allowed_bucket_list)\n assert allowed_bucket_count in [0, 1]\n if allowed_bucket_count == 0:\n # bucket has been deleted since the key was made\n allowed['bucketName'] = None\n else:\n allowed['bucketName'] = allowed_bucket_list[0]['bucketName']\n self.cache.set_bucket_name_cache(\n BucketFactory.from_api_response(self, allowed_bucket_response)\n )",
"start_line": 1,
"end_line": 150,
"total_lines": 372,
"is_truncated": true
}Generated tokens 528 tokens · stopped: STOP
The user says the problem is in `get_bucket_by_name`.
```python
def get_bucket_by_name(self, bucket_name):
"""
Returns the bucket_id for the given bucket_name.
If we don't already know it from the cache, try fetching it from
the B2 service.
"""
# If we can get it from the stored info, do that.
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
And `list_buckets`:
```python
def list_buckets(self, bucket_name=None):
"""
Calls b2_list_buckets and returns a list of buckets.
When no bucket name is specified, returns *all* of the buckets
in the account. When a bucket name is given, returns just that
bucket. When authorized with an application key restricted to
one bucket, you must specify the bucket name, or the request
will be unauthorized.
:param bucket_name: Optional: the name of the one bucket to return.
:return: A list of Bucket objects.
"""
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
...
```
If `get_bucket_by_name(bucket_name)` is called, and it's not in the cache, it calls `self.list_buckets()`.
But `list_buckets()` is called without arguments, so `bucket_name=None`.
Then `self.check_bucket_restrictions(None)` is called inside `list_buckets`.
Let's see `check_bucket_restrictions`. I need to read more of `b2/api.py`.
<channel|><|tool_call>call:read_file{end_line:380,filepath:<|"|>b2/api.py<|"|>,start_line": 350}<tool_call|><|tool_response>
Turn 4at 74 s117 tokens out10,088 prompt tokens
Wait, I read the beginning of the file. I need `check_bucket_restrictions`. It must be somewhere in the middle. I'll read `b2/api.py` from line 250 to 400. Wait, the file only has 372 lines. Let me read from 250 to 372.
TOOL CALL · read_file
{
"end_line": 372,
"filepath": "b2/api.py",
"start_line": 250
}Result of read_file 5,427 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": " # TEMPORARY work around until we fix the API endpoint bug that things requests\n # with a bucket name are not authorized. When it's fixed, well just pass the\n # bucket name (or None) to the raw API.\n if bucket_name is None:\n bucket_id = None\n else:\n allowed = self.account_info.get_allowed()\n if allowed['bucketId'] is not None:\n # We just checked that if there is a bucket restriction we have a bucket name\n # and it matches. So if there's a restriction we know that's the bucket we're\n # looking for.\n bucket_id = allowed['bucketId']\n else:\n bucket_id = self.get_bucket_by_name(bucket_name).id_\n\n response = self.session.list_buckets(account_id, bucket_id=bucket_id)\n buckets = BucketFactory.from_api_response(self, response)\n\n if bucket_name is not None:\n # If a bucket_name is specified we don't clear the cache because the other buckets could still\n # be valid. So we save the one bucket returned from the list_buckets call.\n for bucket in buckets:\n self.cache.save_bucket(bucket)\n else:\n # Otherwise we want to clear the cache and save the buckets returned from list_buckets\n # since we just got a new list of all the buckets for this account.\n self.cache.set_bucket_name_cache(buckets)\n return buckets\n\n def list_parts(self, file_id, start_part_number=None, batch_size=None):\n \"\"\"\n Generator that yields a Part for each of the parts that have been uploaded.\n\n :param file_id: the ID of the large file that is not finished\n :param start_part_number: the first part number to return. defaults to the first part.\n :param batch_size: the number of parts to fetch at a time from the server\n \"\"\"\n batch_size = batch_size or 100\n while True:\n response = self.session.list_parts(file_id, start_part_number, batch_size)\n for part_dict in response['parts']:\n yield PartFactory.from_list_parts_dict(part_dict)\n start_part_number = response.get('nextPartNumber')\n if start_part_number is None:\n break\n\n # delete/cancel\n def cancel_large_file(self, file_id):\n response = self.session.cancel_large_file(file_id)\n return FileVersionInfoFactory.from_cancel_large_file_response(response)\n\n def delete_file_version(self, file_id, file_name):\n # filename argument is not first, because one day it may become optional\n response = self.session.delete_file_version(file_id, file_name)\n assert response['fileId'] == file_id\n assert response['fileName'] == file_name\n return FileIdAndName(file_id, file_name)\n\n # download\n def get_download_url_for_fileid(self, file_id):\n url = url_for_api(self.account_info, 'b2_download_file_by_id')\n return '%s?fileId=%s' % (url, file_id)\n\n def get_download_url_for_file_name(self, bucket_name, file_name):\n \"\"\"\n Returns a URL to download the given file by name.\n \"\"\"\n self.check_bucket_restrictions(bucket_name)\n return '%s/file/%s/%s' % (\n self.account_info.get_download_url(), bucket_name, b2_url_encode(file_name)\n )\n\n # keys\n def create_key(\n self, capabilities, key_name, valid_duration_seconds=None, bucket_id=None, name_prefix=None\n ):\n account_id = self.account_info.get_account_id()\n\n response = self.session.create_key(\n account_id,\n capabilities=capabilities,\n key_name=key_name,\n valid_duration_seconds=valid_duration_seconds,\n bucket_id=bucket_id,\n name_prefix=name_prefix\n )\n\n assert set(response['capabilities']) == set(capabilities)\n assert response['keyName'] == key_name\n\n return response\n\n def delete_key(self, application_key_id):\n\n response = self.session.delete_key(application_key_id=application_key_id)\n return response\n\n def list_keys(self, start_application_key_id=None):\n account_id = self.account_info.get_account_id()\n\n return self.session.list_keys(\n account_id, max_key_count=1000, start_application_key_id=start_application_key_id\n )\n\n # other\n def get_file_info(self, file_id):\n \"\"\" legacy interface which just returns whatever remote API returns \"\"\"\n return self.session.get_file_info(file_id)\n\n def check_bucket_restrictions(self, bucket_name):\n \"\"\"\n Checks to see if the allowed field from authorize-account\n has a bucket restriction.\n\n If it does, does the bucket_name for a given api call match that.\n If not it raises a RestrictedBucket error.\n \"\"\"\n allowed = self.account_info.get_allowed()\n allowed_bucket_name = allowed['bucketName']\n\n if allowed_bucket_name is not None:\n if allowed_bucket_name != bucket_name:\n raise RestrictedBucket(allowed_bucket_name)",
"start_line": 250,
"end_line": 372,
"total_lines": 372,
"is_truncated": false
}Generated tokens 117 tokens · stopped: STOP
Wait, I read the beginning of the file. I need `check_bucket_restrictions`. It must be somewhere in the middle.
I'll read `b2/api.py` from line 250 to 400. Wait, the file only has 372 lines.
Let me read from 250 to 372.
<channel|><|tool_call>call:read_file{end_line:372,filepath:<|"|>b2/api.py<|"|>,start_line:250}<tool_call|><|tool_response>
Turn 5at 319 s4,432 tokens out11,741 prompt tokens
Found it:
```python
def check_bucket_restrictions(self, bucket_name):
"""
Checks to see if the allowed field from authorize-account
has a bucket restriction.
If it does, does the bucket_name for a given api call match that.
If not it raises a RestrictedBucket error.
"""
allowed = self.account_info.get_allowed()
allowed_bucket_name = allowed['bucketName']
if allowed_bucket_name is not None:
if allowed_bucket_name != bucket_name:
raise RestrictedBucket(allowed_bucket_name)
```
Now let's trace `get_bucket_by_name(bucket_name)` again.
```python
def get_bucket_by_name(self, bucket_name):
# ...
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
If it's not in the cache, it calls `self.list_buckets()`.
And `list_buckets` does:
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# ...
```
`list_buckets()` is called without any argument, so `bucket_name` is `None`.
`self.check_bucket_restrictions(None)` then checks if `allowed_bucket_name` (from `account_info`) is not None.
If it is not None (which it is for a bucket-scoped key), it checks if `allowed_bucket_name != None`.
And since `allowed_bucket_name` is something like `"pc-backup"`, this is True, and it raises `RestrictedBucket("pc-backup")`.
This confirms the bug. `get_bucket_by_name(bucket_name)` should call `list_buckets(bucket_name)` instead of `list_buckets()`.
Wait, let's check `list_buckets(bucket_name)` implementation.
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# TEMPORARY work around until we fix the API endpoint bug that things requests
# with a bucket name are not authorized. When it's fixed, well just pass the
# bucket name (or None) to the raw API.
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# We just checked that if there is a bucket restriction we have a bucket name
# and it matches. So if there's a restriction we know that's the bucket we're
# looking for.
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
response = self.session.list_buckets(account_id, bucket_id=bucket_id)
# ...
```
Wait! If `list_buckets(bucket_name)` calls `self.get_bucket_by_name(bucket_name).id_`, and `get_bucket_by_name` calls `list_buckets(bucket_name)`, we have an infinite recursion!
Let's look at `list_buckets` again.
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
This else branch is taken when `allowed['bucketId']` is `None`.
If `allowed['bucketId']` is `None`, that means there is NO bucket restriction at the account info level (or rather, it's not restricted to ONE specific bucket).
But `self.check_bucket_restrictions(bucket_name)` was called at the start of `list_buckets`.
If `allowed_bucket_name` is not None, and `bucket_name` is not None, and they match, then it proceeds.
But if `allowed_bucket_name` is not None, then `allowed['bucketId']` should also be not None.
Let's verify `SqliteAccountInfo.get_allowed()` and where it comes from.
It probably comes from `authorize_account`.
```python
@limit_trace_arguments(only=('self', 'realm'))
def authorize_account(self, realm, account_id_or_key_id, application_key):
# ...
# Authorize
realm_url = self.account_info.REALM_URLS[realm]
response = self.raw_api.authorize_account(realm_url, account_id_or_key_id, application_key)
allowed = response['allowed']
# ...
```
And `allowed` contains `bucketId`.
If `get_bucket_by_name(bucket_name)` knows the `bucket_name`, it should just pass it to `list_buckets(bucket_name)`.
If `list_buckets(bucket_name)` is called:
1. `self.check_bucket_restrictions(bucket_name)`:
- If there's a restriction and it doesn't match `bucket_name`, it raises.
- If there's a restriction and it matches, it proceeds.
- If there's no restriction, it proceeds.
2. `allowed = self.account_info.get_allowed()`
3. If `allowed['bucketId']` is not None:
- `bucket_id = allowed['bucketId']`
- This is the case if the key is restricted to this bucket.
4. Else:
- `bucket_id = self.get_bucket_by_name(bucket_name).id_`
- This is the case if the key is NOT restricted to a bucket.
Wait, if the key is NOT restricted, then `allowed['bucketId']` is `None`.
Then calling `self.get_bucket_by_name(bucket_name).id_` will again call `list_buckets(bucket_name)` if not in cache.
Infinite loop!
Wait, let's check `get_bucket_by_name` again.
```python
def get_bucket_by_name(self, bucket_name):
# ...
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
If it's NOT in cache, it calls `self.list_buckets()`. This calls `check_bucket_restrictions(None)`.
If the key is restricted to bucket "B", `check_bucket_restrictions(None)` raises `RestrictedBucket("B")`.
That's the bug the user reported.
Now, what if we change `self.list_buckets()` to `self.list_buckets(bucket_name)`?
Then `list_buckets(bucket_name)` will call `self.check_bucket_restrictions(bucket_name)`.
If the key is restricted to bucket "B" and `bucket_name` is "B", it proceeds.
Then `allowed['bucketId']` will be not None, so `bucket_id = allowed['bucketId']`.
Then it calls `self.session.list_buckets(account_id, bucket_id=bucket_id)`. This should work!
But what if the key is NOT restricted to any bucket?
Then `allowed['bucketId']` is `None`.
Then `list_buckets(bucket_name)` calls `self.get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`.
Infinite loop!
So there is already a bug or a potential infinite loop in `list_buckets` if called with a `bucket_name` and not in cache, and not restricted.
Wait, let's read `list_buckets` again.
```python
def list_buckets(self, bucket_name=None):
# ...
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# ...
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
response = self.session.list_buckets(account_id, bucket_id=bucket_id)
```
If `bucket_name` is passed, and we are NOT restricted, we call `get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name(bucket_name)` does:
```python
# ...
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
```
Wait, `get_bucket_by_name` calls `self.list_buckets()` (without args).
And `list_buckets()` without args sets `bucket_id = None`.
Then it calls `self.session.list_buckets(account_id, bucket_id=None)`.
This returns ALL buckets.
Then `get_bucket_by_name` iterates over them and finds the one with `bucket_name`.
So there is NO infinite loop here.
The loop is:
`list_buckets(bucket_name)` -> `get_bucket_by_name(bucket_name)` -> `list_buckets()` (no args) -> `session.list_buckets(None)`.
This is fine.
So the only issue is that `get_bucket_by_name(bucket_name)` calls `list_buckets()` without arguments, but it SHOULD call `list_buckets(bucket_name)` (or at least, it's safe to do so if we want to avoid `RestrictedBucket` except when it's actually restricted to a DIFFERENT bucket).
Wait, if `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`, then:
1. If restricted to bucket "B" and `bucket_name` is "B": `list_buckets("B")` will work and return just bucket "B".
2. If restricted to bucket "B" and `bucket_name` is "C": `list_buckets("C")` will raise `RestrictedBucket("B")`. (Wait, `get_bucket_by_name` already calls `check_bucket_restrictions(bucket_name)` so this is already handled).
3. If not restricted: `list_buckets("C")` will call `get_bucket_by_name("C")` which will call `list_buckets()` which will call `session.list_buckets()` and find bucket "C".
So changing `self.list_buckets()` to `self.list_buckets(bucket_name)` in `get_bucket_by_name` seems correct and solves the bug.
Wait, let me double check if `list_buckets(bucket_name)` is actually what we want.
If we call `list_buckets(bucket_name)`, and we are restricted to bucket "B" and `bucket_name` is "B", we get just bucket "B" back.
If we are not restricted, we call `get_bucket_by_name` which calls `list_buckets()` which returns all buckets.
Actually, if we are not restricted, `list_buckets(bucket_name)` is just a less efficient way of calling `list_buckets()` because it adds an extra `get_bucket_by_name` call.
But it is correct.
Let's see if there are other places where `list_buckets` is called.
In `list_buckets(bucket_name)`, we have:
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
And `get_bucket_by_name(bucket_name)` calls `list_buckets()`.
So:
`get_bucket_by_name("B")`
-> `list_buckets("B")`
-> `get_bucket_by_name("B")`
-> `list_buckets()`
-> `session.list_buckets(None)` -> returns all buckets -> find "B" -> returns Bucket("B")
-> `bucket_id = Bucket("B").id_`
-> `session.list_buckets(account_id, bucket_id=bucket_id)` -> returns bucket "B" -> returns Bucket("B")
Wait, if we change `get_bucket_by_name` to call `list_buckets(bucket_name)`, are we introducing a loop?
`get_bucket_by_name("B")` calls `list_buckets("B")`.
`list_buckets("B")` calls `get_bucket_by_name("B")` (if not restricted).
Infinite loop!
YES. If I change `get_bucket_by_name` to call `list_buckets(bucket_name)`, I MUST ensure that `list_buckets` does not call `get_bucket_by_name` if it's already in the process of resolving a bucket by name.
Wait, why does `list_buckets(bucket_name)` call `get_bucket_by_name(bucket_name).id_`?
```python
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# ...
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
It does this to get the `bucket_id` to pass to `self.session.list_buckets(account_id, bucket_id=bucket_id)`.
The `session.list_buckets` API likely takes a `bucket_id` and returns just that bucket.
If we want to avoid the infinite loop, we can change `list_buckets(bucket_name)` to use a different way to get the `bucket_id` or change how `get_bucket_by_name` works.
Currently:
`get_bucket_by_name(bucket_name)`:
1. `check_bucket_restrictions(bucket_name)`
2. Cache lookup.
3. `list_buckets()` -> iterates and finds `bucket_name`.
`list_buckets(bucket_name)`:
1. `check_bucket_restrictions(bucket_name)`
2. If restricted: `bucket_id = allowed['bucketId']`
3. If not restricted: `bucket_id = get_bucket_by_name(bucket_name).id_`
4. `session.list_buckets(account_id, bucket_id=bucket_id)`
If `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`, and we are not restricted:
`get_bucket_by_name("B")` -> `list_buckets("B")` -> `get_bucket_by_name("B")` -> ...
Wait, if `get_bucket_by_name` is called, it already knows the `bucket_name`.
If it's not in the cache, it needs to find the `bucket_id`.
The only way to find the `bucket_id` without knowing it is to list all buckets.
The `list_buckets()` call with no arguments does exactly that.
The problem is `list_buckets()` without arguments calls `check_bucket_restrictions(None)`.
And `check_bucket_restrictions(None)` raises if there's a restriction.
So, the fix should be to make `check_bucket_restrictions` allow `None` if there's a restriction? No, because `list_buckets()` without arguments IS forbidden for restricted keys. The API should return an error.
The user says:
"When authorized with an application key restricted to one bucket, you must specify the bucket name, or the request will be unauthorized."
So `list_buckets()` (without arguments) SHOULD raise `RestrictedBucket` if the key is restricted.
But `get_bucket_by_name(bucket_name)` is called when we ALREADY have the bucket name.
So instead of calling `list_buckets()`, it should call `list_buckets(bucket_name)`.
And to avoid the infinite loop in `list_buckets(bucket_name)`, we should NOT call `get_bucket_by_name(bucket_name)` inside `list_buckets(bucket_name)`.
But wait, if we are in `list_buckets(bucket_name)` and NOT restricted, how do we get the `bucket_id`?
We have to call `get_bucket_by_name(bucket_name)`.
Wait, if `get_bucket_by_name`
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom b2.api import B2Api\nfrom b2.cache import DummyCache\nfrom b2.account_info.sqlite_account_info import SqliteAccountInfo\nfrom b2.exception import RestrictedBucket\nimport unittest\nfrom unittest.mock import MagicMock\n\nclass TestB2Api(unittest.TestCase):\n def test_get_bucket_by_name_restricted(self):\n # Mock account info to be restricted to 'pc-backup'\n account_info = MagicMock()\n account_info.get_account_id.return_value = 'acc123'\n account_info.get_allowed.return_value = {'bucketId': 'bucket123', 'bucketName': 'pc-backup'}\n \n api = B2Api(account_info=account_info, cache=DummyCache())\n \n # This should work because it's the same bucket it's restricted to\n # But currently it calls list_buckets() which will raise RestrictedBucket\n try:\n api.get_bucket_by_name('pc-backup')\n print(\"Success\")\n except RestrictedBucket as e:\n print(f\"Failed with RestrictedBucket: {e}\")\n except Exception as e:\n print(f\"Failed with {type(e).__name__}: {e}\")\n\nif __name__ == '__main__':\n unittest.main()\nPY\n"
}Result of run_command 245 characters
{
"status": "ok",
"stdout": "Failed with RestrictedBucket: Application key is restricted to bucket: pc-backup\n",
"stderr": ".\n----------------------------------------------------------------------\nRan 1 test in 0.000s\n\nOK\n",
"exit_code": 0
}Generated tokens 4,432 tokens · stopped: STOP
Found it:
```python
def check_bucket_restrictions(self, bucket_name):
"""
Checks to see if the allowed field from authorize-account
has a bucket restriction.
If it does, does the bucket_name for a given api call match that.
If not it raises a RestrictedBucket error.
"""
allowed = self.account_info.get_allowed()
allowed_bucket_name = allowed['bucketName']
if allowed_bucket_name is not None:
if allowed_bucket_name != bucket_name:
raise RestrictedBucket(allowed_bucket_name)
```
Now let's trace `get_bucket_by_name(bucket_name)` again.
```python
def get_bucket_by_name(self, bucket_name):
# ...
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
If it's not in the cache, it calls `self.list_buckets()`.
And `list_buckets` does:
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# ...
```
`list_buckets()` is called without any argument, so `bucket_name` is `None`.
`self.check_bucket_restrictions(None)` then checks if `allowed_bucket_name` (from `account_info`) is not None.
If it is not None (which it is for a bucket-scoped key), it checks if `allowed_bucket_name != None`.
And since `allowed_bucket_name` is something like `"pc-backup"`, this is True, and it raises `RestrictedBucket("pc-backup")`.
This confirms the bug. `get_bucket_by_name(bucket_name)` should call `list_buckets(bucket_name)` instead of `list_buckets()`.
Wait, let's check `list_buckets(bucket_name)` implementation.
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# TEMPORARY work around until we fix the API endpoint bug that things requests
# with a bucket name are not authorized. When it's fixed, well just pass the
# bucket name (or None) to the raw API.
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# We just checked that if there is a bucket restriction we have a bucket name
# and it matches. So if there's a restriction we know that's the bucket we're
# looking for.
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
response = self.session.list_buckets(account_id, bucket_id=bucket_id)
# ...
```
Wait! If `list_buckets(bucket_name)` calls `self.get_bucket_by_name(bucket_name).id_`, and `get_bucket_by_name` calls `list_buckets(bucket_name)`, we have an infinite recursion!
Let's look at `list_buckets` again.
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
This else branch is taken when `allowed['bucketId']` is `None`.
If `allowed['bucketId']` is `None`, that means there is NO bucket restriction at the account info level (or rather, it's not restricted to ONE specific bucket).
But `self.check_bucket_restrictions(bucket_name)` was called at the start of `list_buckets`.
If `allowed_bucket_name` is not None, and `bucket_name` is not None, and they match, then it proceeds.
But if `allowed_bucket_name` is not None, then `allowed['bucketId']` should also be not None.
Let's verify `SqliteAccountInfo.get_allowed()` and where it comes from.
It probably comes from `authorize_account`.
```python
@limit_trace_arguments(only=('self', 'realm'))
def authorize_account(self, realm, account_id_or_key_id, application_key):
# ...
# Authorize
realm_url = self.account_info.REALM_URLS[realm]
response = self.raw_api.authorize_account(realm_url, account_id_or_key_id, application_key)
allowed = response['allowed']
# ...
```
And `allowed` contains `bucketId`.
If `get_bucket_by_name(bucket_name)` knows the `bucket_name`, it should just pass it to `list_buckets(bucket_name)`.
If `list_buckets(bucket_name)` is called:
1. `self.check_bucket_restrictions(bucket_name)`:
- If there's a restriction and it doesn't match `bucket_name`, it raises.
- If there's a restriction and it matches, it proceeds.
- If there's no restriction, it proceeds.
2. `allowed = self.account_info.get_allowed()`
3. If `allowed['bucketId']` is not None:
- `bucket_id = allowed['bucketId']`
- This is the case if the key is restricted to this bucket.
4. Else:
- `bucket_id = self.get_bucket_by_name(bucket_name).id_`
- This is the case if the key is NOT restricted to a bucket.
Wait, if the key is NOT restricted, then `allowed['bucketId']` is `None`.
Then calling `self.get_bucket_by_name(bucket_name).id_` will again call `list_buckets(bucket_name)` if not in cache.
Infinite loop!
Wait, let's check `get_bucket_by_name` again.
```python
def get_bucket_by_name(self, bucket_name):
# ...
self.check_bucket_restrictions(bucket_name)
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
If it's NOT in cache, it calls `self.list_buckets()`. This calls `check_bucket_restrictions(None)`.
If the key is restricted to bucket "B", `check_bucket_restrictions(None)` raises `RestrictedBucket("B")`.
That's the bug the user reported.
Now, what if we change `self.list_buckets()` to `self.list_buckets(bucket_name)`?
Then `list_buckets(bucket_name)` will call `self.check_bucket_restrictions(bucket_name)`.
If the key is restricted to bucket "B" and `bucket_name` is "B", it proceeds.
Then `allowed['bucketId']` will be not None, so `bucket_id = allowed['bucketId']`.
Then it calls `self.session.list_buckets(account_id, bucket_id=bucket_id)`. This should work!
But what if the key is NOT restricted to any bucket?
Then `allowed['bucketId']` is `None`.
Then `list_buckets(bucket_name)` calls `self.get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`.
Infinite loop!
So there is already a bug or a potential infinite loop in `list_buckets` if called with a `bucket_name` and not in cache, and not restricted.
Wait, let's read `list_buckets` again.
```python
def list_buckets(self, bucket_name=None):
# ...
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# ...
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
response = self.session.list_buckets(account_id, bucket_id=bucket_id)
```
If `bucket_name` is passed, and we are NOT restricted, we call `get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name(bucket_name)` does:
```python
# ...
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
if id_ is not None:
return Bucket(self, id_, name=bucket_name)
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
```
Wait, `get_bucket_by_name` calls `self.list_buckets()` (without args).
And `list_buckets()` without args sets `bucket_id = None`.
Then it calls `self.session.list_buckets(account_id, bucket_id=None)`.
This returns ALL buckets.
Then `get_bucket_by_name` iterates over them and finds the one with `bucket_name`.
So there is NO infinite loop here.
The loop is:
`list_buckets(bucket_name)` -> `get_bucket_by_name(bucket_name)` -> `list_buckets()` (no args) -> `session.list_buckets(None)`.
This is fine.
So the only issue is that `get_bucket_by_name(bucket_name)` calls `list_buckets()` without arguments, but it SHOULD call `list_buckets(bucket_name)` (or at least, it's safe to do so if we want to avoid `RestrictedBucket` except when it's actually restricted to a DIFFERENT bucket).
Wait, if `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`, then:
1. If restricted to bucket "B" and `bucket_name` is "B": `list_buckets("B")` will work and return just bucket "B".
2. If restricted to bucket "B" and `bucket_name` is "C": `list_buckets("C")` will raise `RestrictedBucket("B")`. (Wait, `get_bucket_by_name` already calls `check_bucket_restrictions(bucket_name)` so this is already handled).
3. If not restricted: `list_buckets("C")` will call `get_bucket_by_name("C")` which will call `list_buckets()` which will call `session.list_buckets()` and find bucket "C".
So changing `self.list_buckets()` to `self.list_buckets(bucket_name)` in `get_bucket_by_name` seems correct and solves the bug.
Wait, let me double check if `list_buckets(bucket_name)` is actually what we want.
If we call `list_buckets(bucket_name)`, and we are restricted to bucket "B" and `bucket_name` is "B", we get just bucket "B" back.
If we are not restricted, we call `get_bucket_by_name` which calls `list_buckets()` which returns all buckets.
Actually, if we are not restricted, `list_buckets(bucket_name)` is just a less efficient way of calling `list_buckets()` because it adds an extra `get_bucket_by_name` call.
But it is correct.
Let's see if there are other places where `list_buckets` is called.
In `list_buckets(bucket_name)`, we have:
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
And `get_bucket_by_name(bucket_name)` calls `list_buckets()`.
So:
`get_bucket_by_name("B")`
-> `list_buckets("B")`
-> `get_bucket_by_name("B")`
-> `list_buckets()`
-> `session.list_buckets(None)` -> returns all buckets -> find "B" -> returns Bucket("B")
-> `bucket_id = Bucket("B").id_`
-> `session.list_buckets(account_id, bucket_id=bucket_id)` -> returns bucket "B" -> returns Bucket("B")
Wait, if we change `get_bucket_by_name` to call `list_buckets(bucket_name)`, are we introducing a loop?
`get_bucket_by_name("B")` calls `list_buckets("B")`.
`list_buckets("B")` calls `get_bucket_by_name("B")` (if not restricted).
Infinite loop!
YES. If I change `get_bucket_by_name` to call `list_buckets(bucket_name)`, I MUST ensure that `list_buckets` does not call `get_bucket_by_name` if it's already in the process of resolving a bucket by name.
Wait, why does `list_buckets(bucket_name)` call `get_bucket_by_name(bucket_name).id_`?
```python
if bucket_name is None:
bucket_id = None
else:
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
# ...
bucket_id = allowed['bucketId']
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
It does this to get the `bucket_id` to pass to `self.session.list_buckets(account_id, bucket_id=bucket_id)`.
The `session.list_buckets` API likely takes a `bucket_id` and returns just that bucket.
If we want to avoid the infinite loop, we can change `list_buckets(bucket_name)` to use a different way to get the `bucket_id` or change how `get_bucket_by_name` works.
Currently:
`get_bucket_by_name(bucket_name)`:
1. `check_bucket_restrictions(bucket_name)`
2. Cache lookup.
3. `list_buckets()` -> iterates and finds `bucket_name`.
`list_buckets(bucket_name)`:
1. `check_bucket_restrictions(bucket_name)`
2. If restricted: `bucket_id = allowed['bucketId']`
3. If not restricted: `bucket_id = get_bucket_by_name(bucket_name).id_`
4. `session.list_buckets(account_id, bucket_id=bucket_id)`
If `get_bucket_by_name(bucket_name)` calls `list_buckets(bucket_name)`, and we are not restricted:
`get_bucket_by_name("B")` -> `list_buckets("B")` -> `get_bucket_by_name("B")` -> ...
Wait, if `get_bucket_by_name` is called, it already knows the `bucket_name`.
If it's not in the cache, it needs to find the `bucket_id`.
The only way to find the `bucket_id` without knowing it is to list all buckets.
The `list_buckets()` call with no arguments does exactly that.
The problem is `list_buckets()` without arguments calls `check_bucket_restrictions(None)`.
And `check_bucket_restrictions(None)` raises if there's a restriction.
So, the fix should be to make `check_bucket_restrictions` allow `None` if there's a restriction? No, because `list_buckets()` without arguments IS forbidden for restricted keys. The API should return an error.
The user says:
"When authorized with an application key restricted to one bucket, you must specify the bucket name, or the request will be unauthorized."
So `list_buckets()` (without arguments) SHOULD raise `RestrictedBucket` if the key is restricted.
But `get_bucket_by_name(bucket_name)` is called when we ALREADY have the bucket name.
So instead of calling `list_buckets()`, it should call `list_buckets(bucket_name)`.
And to avoid the infinite loop in `list_buckets(bucket_name)`, we should NOT call `get_bucket_by_name(bucket_name)` inside `list_buckets(bucket_name)`.
But wait, if we are in `list_buckets(bucket_name)` and NOT restricted, how do we get the `bucket_id`?
We have to call `get_bucket_by_name(bucket_name)`.
Wait, if `get_bucket_by_name`<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from b2.api import B2Api
from b2.cache import DummyCache
from b2.account_info.sqlite_account_info import SqliteAccountInfo
from b2.exception import RestrictedBucket
import unittest
from unittest.mock import MagicMock
class TestB2Api(unittest.TestCase):
def test_get_bucket_by_name_restricted(self):
# Mock account info to be restricted to 'pc-backup'
account_info = MagicMock()
account_info.get_account_id.return_value = 'acc123'
account_info.get_allowed.return_value = {'bucketId': 'bucket123', 'bucketName': 'pc-backup'}
api = B2Api(account_info=account_info, cache=DummyCache())
# This should work because it's the same bucket it's restricted to
# But currently it calls list_buckets() which will raise RestrictedBucket
try:
api.get_bucket_by_name('pc-backup')
print("Success")
except RestrictedBucket as e:
print(f"Failed with RestrictedBucket: {e}")
except Exception as e:
print(f"Failed with {type(e).__name__}: {e}")
if __name__ == '__main__':
unittest.main()
PY
<|"|>}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
Test output Missing
Not saved for this rollout. Nothing has been inferred or reconstructed.
Test errors Missing
Not saved for this rollout. Nothing has been inferred or reconstructed.
Test report (JUnit) Missing
Not saved for this rollout. Nothing has been inferred or reconstructed.
Agent log Included
[ 0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
[ 0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository
Backblaze/B2_Command_Line_Tool.
[ 34.3s] 💭 (1744 chars) "The user is reporting an issue where `b2.api.B2Api.get_bucket_by_name` fails when using
bucket-scoped application keys.
..."
[ 34.3s] 🔧 run_command grep -rn --include="*.py" "get_bucket_by_name" .
[ 34.3s] → ./test/test_console_tool.py:388: bucket = self.b2_api.get_bucket_by_name('my-bucket')
[ 38.6s] 💭 (83 chars) "Okay, the core logic is in `b2/api.py:206`.
Let's read `b2/api.py` around line 206."
[ 38.6s] 📖 read_file (b2/api.py)
[ 38.7s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' )\n return
self.transferer.download_file_from_url(u…
[ 65.7s] 💭 (1779 chars) "The user says the problem is in `get_bucket_by_name`.
```python
def get_bucket_by_name(self, bucket_name):
"..."
[ 65.7s] 📖 read_file (b2/api.py)
[ 65.7s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content':
'##################################################################…
[ 73.3s] 💭 (219 chars) "Wait, I read the beginning of the file. I need `check_bucket_restrictions`. It must be
somewhere in the middle.
I'll rea..."
[ 73.3s] 📖 read_file (b2/api.py)
[ 73.3s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' # TEMPORARY work around until we fix the
API endpoint bug …
[ 318.1s] 💭 (13783 chars) "Found it:
```python
def check_bucket_restrictions(self, bucket_name):
"""
Checks to see if the allow..."
[ 318.1s] 🔧 run_command (30 lines) python3 - <<'PY'
[ 318.3s] → Failed with RestrictedBucket: Application key is restricted to bucket: pc-backup
Native result row
{
"agent_error": "Agent exceeded session timeout (7.5 min)",
"duration_seconds": 452.71,
"error": "Empty agent patch",
"grade": {
"error": "Empty agent patch",
"resolved": false,
"strict_clean_patch": false,
"test_exit_code": -1
},
"instance_id": "backblaze__b2_command_line_tool-488",
"pass_idx": 0,
"patch_chars": 0,
"phase1_seconds": 452.71,
"repo": "Backblaze/B2_Command_Line_Tool",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/backblaze__b2_command_line_tool-488__p0__r2.jsonl",
"resolved": false,
"rollout_idx": 2,
"run_key": "backblaze__b2_command_line_tool-488__p0__r2",
"strict_clean_patch": false,
"tool_calls": 5,
"total_llm_calls": 5,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_backblaze__b2_command_line_tool-488__p0__r2.json"
}