ROLLOUT 5 · Backblaze/B2_Command_Line_Tool
backblaze__b2_command_line_tool-488
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453 stotal time
14tool calls
14model calls
6,762tokens generated
130,584prompt 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 25 s411 tokens out4,327 prompt tokens
The user is reporting a bug where `b2.api.B2Api.get_bucket_by_name` does not work with bucket-scoped application keys.
The provided traceback shows that `get_bucket_by_name` calls `list_buckets()` without passing a bucket name, which leads to a `RestrictedBucket` exception when the application key is restricted to a specific bucket.
Traceback analysis:
1. `duplicity/backends/b2backend.py` calls `self.service.get_bucket_by_name(bucket_name)`.
2. `b2/api.py` line 222 in `get_bucket_by_name` calls `self.list_buckets()`.
3. `b2/api.py` line 251 in `list_buckets` calls `self.check_bucket_restrictions(bucket_name)`. Wait, the traceback says:
```
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/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
Wait, the traceback says `list_buckets` called `check_bucket_restrictions(bucket_name)`. But `get_bucket_by_name` called `list_buckets()` without arguments.
Let's look at `b2/api.py`.
TOOL CALL · read_file
{
"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 411 tokens · stopped: STOP
<|channel>thought
The user is reporting a bug where `b2.api.B2Api.get_bucket_by_name` does not work with bucket-scoped application keys.
The provided traceback shows that `get_bucket_by_name` calls `list_buckets()` without passing a bucket name, which leads to a `RestrictedBucket` exception when the application key is restricted to a specific bucket.
Traceback analysis:
1. `duplicity/backends/b2backend.py` calls `self.service.get_bucket_by_name(bucket_name)`.
2. `b2/api.py` line 222 in `get_bucket_by_name` calls `self.list_buckets()`.
3. `b2/api.py` line 251 in `list_buckets` calls `self.check_bucket_restrictions(bucket_name)`. Wait, the traceback says:
```
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/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
Wait, the traceback says `list_buckets` called `check_bucket_restrictions(bucket_name)`. But `get_bucket_by_name` called `list_buckets()` without arguments.
Let's look at `b2/api.py`.<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:200}<tool_call|><|tool_response>
Turn 2at 50 s540 tokens out6,580 prompt tokens
I see `get_bucket_by_name` on line 206:
```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` on line 226:
```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)
```
In `get_bucket_by_name`, it calls `self.list_buckets()` without any arguments.
Inside `list_buckets(bucket_name=None)`, it calls `self.check_bucket_restrictions(bucket_name)`.
Since `bucket_name` is `None`, `check_bucket_restrictions(None)` will raise `RestrictedBucket` if the application key is restricted to a bucket.
Let's check `check_bucket_restrictions` implementation. It's probably further down in `b2/api.py`.
TOOL CALL · read_file
{
"filepath": "b2/api.py",
"start_line": 350
}Result of read_file 1,056 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": " 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": 350,
"end_line": 372,
"total_lines": 372,
"is_truncated": false
}Generated tokens 540 tokens · stopped: STOP
I see `get_bucket_by_name` on line 206:
```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` on line 226:
```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)
```
In `get_bucket_by_name`, it calls `self.list_buckets()` without any arguments.
Inside `list_buckets(bucket_name=None)`, it calls `self.check_bucket_restrictions(bucket_name)`.
Since `bucket_name` is `None`, `check_bucket_restrictions(None)` will raise `RestrictedBucket` if the application key is restricted to a bucket.
Let's check `check_bucket_restrictions` implementation. It's probably further down in `b2/api.py`.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:350}<tool_call|><|tool_response>
Turn 3at 227 s3,005 tokens out7,442 prompt tokens
Exactly. `check_bucket_restrictions` checks if `allowed_bucket_name` is not `None`. If it is not `None` (meaning there is a restriction), and it doesn't match `bucket_name`, it raises `RestrictedBucket`.
In `get_bucket_by_name(bucket_name)`:
1. It calls `self.check_bucket_restrictions(bucket_name)`. This is fine since `bucket_name` is provided.
2. If not in cache, it calls `self.list_buckets()`.
3. `list_buckets(bucket_name=None)` calls `self.check_bucket_restrictions(None)`.
4. Since `bucket_name` is `None` and `allowed_bucket_name` is not `None`, it raises `RestrictedBucket`.
The fix should be to pass `bucket_name` to `list_buckets()` in `get_bucket_by_name`.
```python
def get_bucket_by_name(self, bucket_name):
# ...
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
Actually, if `list_buckets(bucket_name=bucket_name)` is called, it returns a list containing only that bucket if it exists, or an empty list if it doesn't.
Let's verify `list_buckets` logic again.
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# ...
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)
buckets = BucketFactory.from_api_response(self, response)
# ...
```
Wait, there is a recursive call here!
If `bucket_name` is provided AND `allowed['bucketId']` is `None` (meaning no bucket restriction on the key, but the user wants to filter `list_buckets` by name), it calls `self.get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name` calls `list_buckets()`.
So:
`get_bucket_by_name(name)` -> `list_buckets(None)` -> `check_bucket_restrictions(None)` -> `RestrictedBucket` (if restricted).
If we change `get_bucket_by_name` to call `list_buckets(bucket_name)`, then:
`get_bucket_by_name(name)` -> `list_buckets(name)` -> `check_bucket_restrictions(name)` -> (ok) -> `get_bucket_by_name(name).id_` (if no account restriction) ->- RECURSION!
Wait, let's re-read carefully.
If `allowed['bucketId']` is NOT `None`, it uses `allowed['bucketId']` as `bucket_id`. No recursion.
If `allowed['bucketId']` IS `None`, it calls `self.get_bucket_by_name(bucket_name).id_`.
So if I change `get_bucket_by_name` to:
```python
def get_bucket_by_name(self, bucket_name):
# ...
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
```
And I call `get_bucket_by_name("mybucket")` without an account restriction:
1. `get_bucket_by_name("mybucket")`
2. `list_buckets(bucket_name="mybucket")`
3. `check_bucket_restrictions("mybucket")` (OK)
4. `allowed['bucketId']` is `None`
5. `self.get_bucket_by_name("mybucket").id_` -> RECURSION.
Oh, the current implementation of `get_bucket_by_name` is:
```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)
```
And `list_buckets()` is called with `bucket_name=None`.
If there's a bucket restriction, `list_buckets(None)` fails.
If we want to support bucket-restricted keys in `get_bucket_by_name(bucket_name)`, we should call `list_buckets(bucket_name=bucket_name)`.
But to avoid recursion in `list_buckets`, we need to make sure `list_buckets` doesn't call `get_bucket_by_name` when it's already being called by `get_bucket_by_name`.
Alternatively, `list_buckets` should only call `get_bucket_by_name` if there is no bucket restriction. But it already does that.
Actually, why does `list_buckets` call `get_bucket_by_name`?
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
It's because the B2 `listBuckets` API take `bucketId` as an optional parameter to filter the result to a single bucket. But we only have `bucket_name`. So it tries to resolve the name to an ID first.
This is a circular dependency between `get_bucket_by_name` and `list_buckets`.
Let's see how `get_bucket_by_name` currently solves it: it calls `list_buckets()` without arguments to get all buckets and then filters in Python.
If the key is restricted, `list_buckets()` (without arguments) fails.
If we call `list_buckets(bucket_name=bucket_name)`, it will either:
1. Use the account's `bucketId` (if restricted) -> Success.
2. Call `get_bucket_by_name(bucket_name)` (if not restricted) -> RECURSION.
Wait! If it's NOT restricted, we don't need to call `list_buckets(bucket_name=bucket_name)`, we can just call `list_buckets()`.
So in `get_bucket_by_name`:
If there is a bucket restriction (`self.account_info.get_allowed()['bucketName']` is not `None`), then we MUST call `list_buckets(bucket_name=bucket_name)`.
Since there is a restriction, `list_buckets(bucket_name=bucket_name)` will use `allowed['bucketId']` and NOT recurse.
If there is NO bucket restriction, we can call `list_buckets()` (which is what it does now), and it will return all buckets.
So the fix in `get_bucket_by_name` could be:
```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)
allowed = self.account_info.get_allowed()
if allowed['bucketName'] is not None:
# We are restricted to a bucket, so we must pass it to list_buckets
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
else:
# We can list all buckets
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
Wait, if `allowed['bucketName']` is not None, `list_buckets(bucket_name=bucket_name)` will be called.
Inside `list_buckets(bucket_name=bucket_name)`:
1. `self.check_bucket_restrictions(bucket_name)` (OK)
2. `allowed = self.account_info.get_allowed()`
3. `if allowed['bucketId'] is not None:` (True) -> `bucket_id = allowed['bucketId']`.
4. `response = self.session.list_buckets(account_id, bucket_id=bucket_id)`
5. Returns buckets.
This works!
And if `allowed['bucketName']` is None:
1. `list_buckets()` is called.
2. `check_bucket_restrictions(None)` (OK, since `allowed_bucket_name` is None).
3. `bucket_name` is None.
4. `bucket_id = None`.
5. `response = self.session.list_buckets(account_id, bucket_id=None)`.
6. Returns all buckets.
This also works!
Let's double check if `allowed['bucketName']` and `allowed['bucketId']` are consistent.
In `check_bucket_restrictions`:
```python
allowed = self.account_info.get_allowed()
allowed_bucket_name = allowed['bucketName']
```
In `list_buckets`:
```python
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
```
It seems they both come from `self.account_info.get_allowed()`.
Let's create a reproduction to confirm.
I need to mock `B2Api`, `AccountInfo` and `Session`.
The traceback showed:
`get_bucket_by_name(bucket_name)` -> `list_buckets()` -> `check_bucket_restrictions(None)` -> `RestrictedBucket(allowed_bucket_name)` (if `allowed_bucket_name` is not None).
I'll write a script to reproduce this.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom b2.api import B2Api\nfrom b2.exception import RestrictedBucket\nfrom b2.account_info.in_memory import InMemoryAccountInfo\nfrom b2.session import Session\nfrom unittest.mock import MagicMock\n\nclass MockAccountInfo(InMemoryAccountInfo):\n def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):\n super().__init__()\n self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}\n def get_allowed(self):\n return self.allowed\n def get_account_id(self):\n return 'account_id'\n\ndef test_restricted_bucket():\n account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')\n session = MagicMock(spec=Session)\n # Mock session.list_buckets to return something\n session.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}\n \n # We need to mock BucketFactory and other things if the code uses them.\n # Instead of mocking B2Api(account_info, session), we can just use B2Api and patch.\n \n # The B2Api constructor: B2Api(account_info, session, cache)\n from b2.cache import Cache\n cache = Cache()\n \n api = B2Api(account_info, session, cache)\n \n try:\n print(\"Calling get_bucket_by_name('pc-backup')...\")\n api.get_bucket_by_name('pc-backup')\n print(\"Success!\")\n except RestrictedBucket as e:\n print(f\"Caught expected RestrictedBucket: {e}\")\n except Exception as e:\n print(f\"Caught unexpected exception: {type(e).__name__}: {e}\")\n import traceback\n traceback.print_exc()\n\nif __name__ == \"__main__\":\n test_restricted_bucket()\nPY\n"
}Result of run_command 457 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": "Traceback (most recent call last):\n File \"<stdin>\", line 4, in <module>\nImportError: cannot import name 'Session' from 'b2.session' (/workspace/b2/session.py)\n",
"details": {
"stdout": "",
"stderr": "Traceback (most recent call last):\n File \"<stdin>\", line 4, in <module>\nImportError: cannot import name 'Session' from 'b2.session' (/workspace/b2/session.py)\n",
"exit_code": 1
}
}Generated tokens 3,005 tokens · stopped: STOP
Exactly. `check_bucket_restrictions` checks if `allowed_bucket_name` is not `None`. If it is not `None` (meaning there is a restriction), and it doesn't match `bucket_name`, it raises `RestrictedBucket`.
In `get_bucket_by_name(bucket_name)`:
1. It calls `self.check_bucket_restrictions(bucket_name)`. This is fine since `bucket_name` is provided.
2. If not in cache, it calls `self.list_buckets()`.
3. `list_buckets(bucket_name=None)` calls `self.check_bucket_restrictions(None)`.
4. Since `bucket_name` is `None` and `allowed_bucket_name` is not `None`, it raises `RestrictedBucket`.
The fix should be to pass `bucket_name` to `list_buckets()` in `get_bucket_by_name`.
```python
def get_bucket_by_name(self, bucket_name):
# ...
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
Actually, if `list_buckets(bucket_name=bucket_name)` is called, it returns a list containing only that bucket if it exists, or an empty list if it doesn't.
Let's verify `list_buckets` logic again.
```python
def list_buckets(self, bucket_name=None):
# ...
account_id = self.account_info.get_account_id()
self.check_bucket_restrictions(bucket_name)
# ...
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)
buckets = BucketFactory.from_api_response(self, response)
# ...
```
Wait, there is a recursive call here!
If `bucket_name` is provided AND `allowed['bucketId']` is `None` (meaning no bucket restriction on the key, but the user wants to filter `list_buckets` by name), it calls `self.get_bucket_by_name(bucket_name).id_`.
And `get_bucket_by_name` calls `list_buckets()`.
So:
`get_bucket_by_name(name)` -> `list_buckets(None)` -> `check_bucket_restrictions(None)` -> `RestrictedBucket` (if restricted).
If we change `get_bucket_by_name` to call `list_buckets(bucket_name)`, then:
`get_bucket_by_name(name)` -> `list_buckets(name)` -> `check_bucket_restrictions(name)` -> (ok) -> `get_bucket_by_name(name).id_` (if no account restriction) ->- RECURSION!
Wait, let's re-read carefully.
If `allowed['bucketId']` is NOT `None`, it uses `allowed['bucketId']` as `bucket_id`. No recursion.
If `allowed['bucketId']` IS `None`, it calls `self.get_bucket_by_name(bucket_name).id_`.
So if I change `get_bucket_by_name` to:
```python
def get_bucket_by_name(self, bucket_name):
# ...
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
```
And I call `get_bucket_by_name("mybucket")` without an account restriction:
1. `get_bucket_by_name("mybucket")`
2. `list_buckets(bucket_name="mybucket")`
3. `check_bucket_restrictions("mybucket")` (OK)
4. `allowed['bucketId']` is `None`
5. `self.get_bucket_by_name("mybucket").id_` -> RECURSION.
Oh, the current implementation of `get_bucket_by_name` is:
```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)
```
And `list_buckets()` is called with `bucket_name=None`.
If there's a bucket restriction, `list_buckets(None)` fails.
If we want to support bucket-restricted keys in `get_bucket_by_name(bucket_name)`, we should call `list_buckets(bucket_name=bucket_name)`.
But to avoid recursion in `list_buckets`, we need to make sure `list_buckets` doesn't call `get_bucket_by_name` when it's already being called by `get_bucket_by_name`.
Alternatively, `list_buckets` should only call `get_bucket_by_name` if there is no bucket restriction. But it already does that.
Actually, why does `list_buckets` call `get_bucket_by_name`?
```python
else:
bucket_id = self.get_bucket_by_name(bucket_name).id_
```
It's because the B2 `listBuckets` API take `bucketId` as an optional parameter to filter the result to a single bucket. But we only have `bucket_name`. So it tries to resolve the name to an ID first.
This is a circular dependency between `get_bucket_by_name` and `list_buckets`.
Let's see how `get_bucket_by_name` currently solves it: it calls `list_buckets()` without arguments to get all buckets and then filters in Python.
If the key is restricted, `list_buckets()` (without arguments) fails.
If we call `list_buckets(bucket_name=bucket_name)`, it will either:
1. Use the account's `bucketId` (if restricted) -> Success.
2. Call `get_bucket_by_name(bucket_name)` (if not restricted) -> RECURSION.
Wait! If it's NOT restricted, we don't need to call `list_buckets(bucket_name=bucket_name)`, we can just call `list_buckets()`.
So in `get_bucket_by_name`:
If there is a bucket restriction (`self.account_info.get_allowed()['bucketName']` is not `None`), then we MUST call `list_buckets(bucket_name=bucket_name)`.
Since there is a restriction, `list_buckets(bucket_name=bucket_name)` will use `allowed['bucketId']` and NOT recurse.
If there is NO bucket restriction, we can call `list_buckets()` (which is what it does now), and it will return all buckets.
So the fix in `get_bucket_by_name` could be:
```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)
allowed = self.account_info.get_allowed()
if allowed['bucketName'] is not None:
# We are restricted to a bucket, so we must pass it to list_buckets
for bucket in self.list_buckets(bucket_name=bucket_name):
if bucket.name == bucket_name:
return bucket
else:
# We can list all buckets
for bucket in self.list_buckets():
if bucket.name == bucket_name:
return bucket
raise NonExistentBucket(bucket_name)
```
Wait, if `allowed['bucketName']` is not None, `list_buckets(bucket_name=bucket_name)` will be called.
Inside `list_buckets(bucket_name=bucket_name)`:
1. `self.check_bucket_restrictions(bucket_name)` (OK)
2. `allowed = self.account_info.get_allowed()`
3. `if allowed['bucketId'] is not None:` (True) -> `bucket_id = allowed['bucketId']`.
4. `response = self.session.list_buckets(account_id, bucket_id=bucket_id)`
5. Returns buckets.
This works!
And if `allowed['bucketName']` is None:
1. `list_buckets()` is called.
2. `check_bucket_restrictions(None)` (OK, since `allowed_bucket_name` is None).
3. `bucket_name` is None.
4. `bucket_id = None`.
5. `response = self.session.list_buckets(account_id, bucket_id=None)`.
6. Returns all buckets.
This also works!
Let's double check if `allowed['bucketName']` and `allowed['bucketId']` are consistent.
In `check_bucket_restrictions`:
```python
allowed = self.account_info.get_allowed()
allowed_bucket_name = allowed['bucketName']
```
In `list_buckets`:
```python
allowed = self.account_info.get_allowed()
if allowed['bucketId'] is not None:
```
It seems they both come from `self.account_info.get_allowed()`.
Let's create a reproduction to confirm.
I need to mock `B2Api`, `AccountInfo` and `Session`.
The traceback showed:
`get_bucket_by_name(bucket_name)` -> `list_buckets()` -> `check_bucket_restrictions(None)` -> `RestrictedBucket(allowed_bucket_name)` (if `allowed_bucket_name` is not None).
I'll write a script to reproduce this.<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from b2.api import B2Api
from b2.exception import RestrictedBucket
from b2.account_info.in_memory import InMemoryAccountInfo
from b2.session import Session
from unittest.mock import MagicMock
class MockAccountInfo(InMemoryAccountInfo):
def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):
super().__init__()
self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}
def get_allowed(self):
return self.allowed
def get_account_id(self):
return 'account_id'
def test_restricted_bucket():
account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')
session = MagicMock(spec=Session)
# Mock session.list_buckets to return something
session.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}
# We need to mock BucketFactory and other things if the code uses them.
# Instead of mocking B2Api(account_info, session), we can just use B2Api and patch.
# The B2Api constructor: B2Api(account_info, session, cache)
from b2.cache import Cache
cache = Cache()
api = B2Api(account_info, session, cache)
try:
print("Calling get_bucket_by_name('pc-backup')...")
api.get_bucket_by_name('pc-backup')
print("Success!")
except RestrictedBucket as e:
print(f"Caught expected RestrictedBucket: {e}")
except Exception as e:
print(f"Caught unexpected exception: {type(e).__name__}: {e}")
import traceback
traceback.print_exc()
if __name__ == "__main__":
test_restricted_bucket()
PY
<|"|>}<tool_call|><|tool_response>
Turn 4at 231 s47 tokens out10,609 prompt tokens
Ah, `Session` is not in `b2.session`. Let me check `b2/session.py`.
TOOL CALL · read_file
{
"filepath": "b2/session.py"
}Result of read_file 3,416 characters
{
"status": "ok",
"filepath": "b2/session.py",
"content": "######################################################################\n#\n# File: b2/session.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 functools\n\nfrom b2.exception import (InvalidAuthToken, Unauthorized)\nfrom b2.raw_api import ALL_CAPABILITIES\n\n\nclass B2Session(object):\n \"\"\"\n A *magic* facade that supplies the correct api_url and account_auth_token\n to methods of underlying raw_api and reauthorizes if necessary\n \"\"\"\n\n def __init__(self, api, raw_api):\n self._api = api # for reauthorization\n self.raw_api = raw_api\n\n def __getattr__(self, name):\n f = getattr(self.raw_api, name)\n\n @functools.wraps(f)\n def wrapper(*args, **kwargs):\n auth_failure_encountered = False\n # download_by_name uses different URLs\n url_factory = kwargs.pop('url_factory', self._api.account_info.get_api_url)\n while 1:\n api_url = url_factory()\n account_auth_token = self._api.account_info.get_account_auth_token()\n try:\n return f(api_url, account_auth_token, *args, **kwargs)\n except InvalidAuthToken:\n if not auth_failure_encountered:\n auth_failure_encountered = True\n reauthorization_success = self._api.authorize_automatically()\n if reauthorization_success:\n continue\n # TODO: exception chaining could be added here\n # to help debug reauthorization failures\n raise\n except Unauthorized as e:\n raise self._add_app_key_info_to_unauthorized(e)\n\n return wrapper\n\n def _add_app_key_info_to_unauthorized(self, unauthorized):\n \"\"\"\n Takes an Unauthorized error and adds information from the application key\n about why it might have failed.\n \"\"\"\n # What's allowed?\n allowed = self._api.account_info.get_allowed()\n capabilities = allowed['capabilities']\n bucket_name = allowed['bucketName']\n name_prefix = allowed['namePrefix']\n\n # Make a list of messages about the application key restrictions\n key_messages = []\n if set(capabilities) != set(ALL_CAPABILITIES):\n key_messages.append(\"with capabilities '\" + ','.join(capabilities) + \"'\")\n if bucket_name is not None:\n key_messages.append(\"restricted to bucket '\" + bucket_name + \"'\")\n if name_prefix is not None:\n key_messages.append(\"restricted to files that start with '\" + name_prefix + \"'\")\n if not key_messages:\n key_messages.append('with no restrictions')\n\n # Make a new message\n new_message = unauthorized.message\n if new_message == '':\n new_message = 'unauthorized'\n new_message += ' for application key ' + ', '.join(key_messages)\n\n return Unauthorized(new_message, unauthorized.code)",
"start_line": 1,
"end_line": 82,
"total_lines": 82,
"is_truncated": false
}Generated tokens 47 tokens · stopped: STOP
Ah, `Session` is not in `b2.session`. Let me check `b2/session.py`.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/session.py<|"|>}<tool_call|><|tool_response>
Turn 5at 258 s581 tokens out11,557 prompt tokens
It is `B2Session`. Let's retry the reproduction script.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom b2.api import B2Api\nfrom b2.exception import RestrictedBucket\nfrom b2.account_info.in_memory import InMemoryAccountInfo\nfrom b2.session import B2Session\nfrom unittest.mock import MagicMock\n\nclass MockAccountInfo(InMemoryAccountInfo):\n def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):\n super().__init__()\n self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}\n def get_allowed(self):\n return self.allowed\n def get_account_id(self):\n return 'account_id'\n\ndef test_restricted_bucket():\n account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')\n \n # Mock raw_api and B2Session\n raw_api = MagicMock()\n session = B2Session(None, raw_api) # pass None for api since we won't need reauth\n \n # Mock raw_api.list_buckets to return something\n # The BucketFactory.from_api_response uses the response\n raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}\n \n from b2.cache import Cache\n cache = Cache()\n \n # Manually instantiate B2Api\n # We need to make sure the B2Api object is passed to session if needed, \n # but B2Session.__init__ takes it.\n api = B2Api(account_info, session, cache)\n # Fix the session's reference to the api\n session._api = api\n \n try:\n print(\"Calling get_bucket_by_name('pc-backup')...\")\n api.get_bucket_by_name('pc-backup')\n print(\"Success!\")\n except RestrictedBucket as e:\n print(f\"Caught expected RestrictedBucket: {e}\")\n except Exception as e:\n print(f\"Caught unexpected exception: {type(e).__name__}: {e}\")\n import traceback\n traceback.print_exc()\n\nif __name__ == \"__main__\":\n test_restricted_bucket()\nPY\n"
}Result of run_command 559 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": "Traceback (most recent call last):\n File \"<stdin>\", line 49, in <module>\n File \"<stdin>\", line 27, in test_restricted_bucket\nImportError: cannot import name 'Cache' from 'b2.cache' (/workspace/b2/cache.py)\n",
"details": {
"stdout": "",
"stderr": "Traceback (most recent call last):\n File \"<stdin>\", line 49, in <module>\n File \"<stdin>\", line 27, in test_restricted_bucket\nImportError: cannot import name 'Cache' from 'b2.cache' (/workspace/b2/cache.py)\n",
"exit_code": 1
}
}Generated tokens 581 tokens · stopped: STOP
It is `B2Session`.
Let's retry the reproduction script.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from b2.api import B2Api
from b2.exception import RestrictedBucket
from b2.account_info.in_memory import InMemoryAccountInfo
from b2.session import B2Session
from unittest.mock import MagicMock
class MockAccountInfo(InMemoryAccountInfo):
def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):
super().__init__()
self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}
def get_allowed(self):
return self.allowed
def get_account_id(self):
return 'account_id'
def test_restricted_bucket():
account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')
# Mock raw_api and B2Session
raw_api = MagicMock()
session = B2Session(None, raw_api) # pass None for api since we won't need reauth
# Mock raw_api.list_buckets to return something
# The BucketFactory.from_api_response uses the response
raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}
from b2.cache import Cache
cache = Cache()
# Manually instantiate B2Api
# We need to make sure the B2Api object is passed to session if needed,
# but B2Session.__init__ takes it.
api = B2Api(account_info, session, cache)
# Fix the session's reference to the api
session._api = api
try:
print("Calling get_bucket_by_name('pc-backup')...")
api.get_bucket_by_name('pc-backup')
print("Success!")
except RestrictedBucket as e:
print(f"Caught expected RestrictedBucket: {e}")
except Exception as e:
print(f"Caught unexpected exception: {type(e).__name__}: {e}")
import traceback
traceback.print_exc()
if __name__ == "__main__":
test_restricted_bucket()
PY
<|"|>}<tool_call|><|tool_response>
Turn 6at 262 s36 tokens out12,341 prompt tokens
Another import error. Let me check `b2/cache.py`.
TOOL CALL · read_file
{
"filepath": "b2/cache.py"
}Result of read_file 2,652 characters
{
"status": "ok",
"filepath": "b2/cache.py",
"content": "######################################################################\n#\n# File: b2/cache.py\n#\n# Copyright 2018 Backblaze Inc. All Rights Reserved.\n#\n# License https://www.backblaze.com/using_b2_code.html\n#\n######################################################################\n\nfrom abc import (ABCMeta, abstractmethod)\n\nimport six\n\n\n@six.add_metaclass(ABCMeta)\nclass AbstractCache(object):\n def clear(self):\n self.set_bucket_name_cache(tuple())\n\n @abstractmethod\n def get_bucket_id_or_none_from_bucket_name(self, name):\n pass\n\n @abstractmethod\n def get_bucket_name_or_none_from_allowed(self):\n pass\n\n @abstractmethod\n def save_bucket(self, bucket):\n pass\n\n @abstractmethod\n def set_bucket_name_cache(self, buckets):\n pass\n\n def _name_id_iterator(self, buckets):\n return ((bucket.name, bucket.id_) for bucket in buckets)\n\n\nclass DummyCache(AbstractCache):\n \"\"\" Cache that does nothing \"\"\"\n\n def get_bucket_id_or_none_from_bucket_name(self, name):\n return None\n\n def get_bucket_name_or_none_from_allowed(self):\n return None\n\n def save_bucket(self, bucket):\n pass\n\n def set_bucket_name_cache(self, buckets):\n pass\n\n\nclass InMemoryCache(AbstractCache):\n \"\"\" Cache that stores the information in memory \"\"\"\n\n def __init__(self):\n self.name_id_map = {}\n self.bucket_name = ''\n\n def get_bucket_id_or_none_from_bucket_name(self, name):\n return self.name_id_map.get(name)\n\n def get_bucket_name_or_none_from_allowed(self):\n return self.bucket_name\n\n def save_bucket(self, bucket):\n self.name_id_map[bucket.name] = bucket.id_\n\n def set_bucket_name_cache(self, buckets):\n self.name_id_map = dict(self._name_id_iterator(buckets))\n\n\nclass AuthInfoCache(AbstractCache):\n \"\"\" Cache that stores data persistently in StoredAccountInfo \"\"\"\n\n def __init__(self, info):\n self.info = info\n\n def get_bucket_id_or_none_from_bucket_name(self, name):\n return self.info.get_bucket_id_or_none_from_bucket_name(name)\n\n def get_bucket_name_or_none_from_allowed(self):\n return self.info.get_bucket_name_or_none_from_allowed()\n\n def save_bucket(self, bucket):\n self.info.save_bucket(bucket)\n\n def set_bucket_name_cache(self, buckets):\n self.info.refresh_entire_bucket_name_cache(self._name_id_iterator(buckets))",
"start_line": 1,
"end_line": 93,
"total_lines": 93,
"is_truncated": false
}Generated tokens 36 tokens · stopped: STOP
Another import error. Let me check `b2/cache.py`.<channel|><|tool_call>call:read_file{filepath:<|"|>b2/cache.py<|"|>}<tool_call|><|tool_response>
Turn 7at 282 s510 tokens out13,267 prompt tokens
It's `InMemoryCache` or `DummyCache`. Let's use `InMemoryCache`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom b2.api import B2Api\nfrom b2.exception import RestrictedBucket\nfrom b2.account_info.in_memory import InMemoryAccountInfo\nfrom b2.session import B2Session\nfrom b2.cache import InMemoryCache\nfrom unittest.mock import MagicMock\n\nclass MockAccountInfo(InMemoryAccountInfo):\n def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):\n super().__init__()\n self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}\n def get_allowed(self):\n return self.allowed\n def get_account_id(self):\n return 'account_id'\n\ndef test_restricted_bucket():\n account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')\n \n # Mock raw_api and B2Session\n raw_api = MagicMock()\n session = B2Session(None, raw_api)\n \n # Mock raw_api.list_buckets to return something\n raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}\n \n cache = InMemoryCache()\n \n # Instantiate B2Api\n api = B2Api(account_info, session, cache)\n session._api = api\n \n try:\n print(\"Calling get_bucket_by_name('pc-backup')...\")\n api.get_bucket_by_name('pc-backup')\n print(\"Success!\")\n except RestrictedBucket as e:\n print(f\"Caught expected RestrictedBucket: {e}\")\n except Exception as e:\n print(f\"Caught unexpected exception: {type(e).__name__}: {e}\")\n import traceback\n traceback.print_exc()\n\nif __name__ == \"__main__\":\n test_restricted_bucket()\nPY\n"
}Result of run_command 704 characters
{
"status": "ok",
"stdout": "Calling get_bucket_by_name('pc-backup')...\nCaught unexpected exception: MissingAccountData: Missing account data: api_url\n",
"stderr": "Traceback (most recent call last):\n File \"<stdin>\", line 35, in test_restricted_bucket\n File \"/workspace/b2/api.py\", line 215, in get_bucket_by_name\n id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)\n File \"/workspace/b2/session.py\", line 36, in wrapper\n api_url = url_factory()\n File \"/workspace/b2/account_info/in_memory.py\", line 24, in inner\n raise MissingAccountData(function.__name__[4:])\nb2.account_info.exception.MissingAccountData: Missing account data: api_url\n",
"exit_code": 0
}Generated tokens 510 tokens · stopped: STOP
It's `InMemoryCache` or `DummyCache`. Let's use `InMemoryCache`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from b2.api import B2Api
from b2.exception import RestrictedBucket
from b2.account_info.in_memory import InMemoryAccountInfo
from b2.session import B2Session
from b2.cache import InMemoryCache
from unittest.mock import MagicMock
class MockAccountInfo(InMemoryAccountInfo):
def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):
super().__init__()
self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id}
def get_allowed(self):
return self.allowed
def get_account_id(self):
return 'account_id'
def test_restricted_bucket():
account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')
# Mock raw_api and B2Session
raw_api = MagicMock()
session = B2Session(None, raw_api)
# Mock raw_api.list_buckets to return something
raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}
cache = InMemoryCache()
# Instantiate B2Api
api = B2Api(account_info, session, cache)
session._api = api
try:
print("Calling get_bucket_by_name('pc-backup')...")
api.get_bucket_by_name('pc-backup')
print("Success!")
except RestrictedBucket as e:
print(f"Caught expected RestrictedBucket: {e}")
except Exception as e:
print(f"Caught unexpected exception: {type(e).__name__}: {e}")
import traceback
traceback.print_exc()
if __name__ == "__main__":
test_restricted_bucket()
PY
<|"|>}<tool_call|><|tool_response>
Turn 8at 299 s292 tokens out14,030 prompt tokens
Wait, why is `self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)` calling `url_factory()`?
Let's check the traceback.
```
File "/workspace/b2/api.py", line 215, in get_bucket_by_name
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
File "/workspace/b2/session.py", line 36, in wrapper
api_url = url_factory()
```
Wait, if `get_bucket_by_name` is called, line 215 is `id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)`.
But the traceback says it goes to `b2/session.py`, line 36, in `wrapper`.
Wait, is `self.cache` being wrapped by `B2Session`? That's impossible.
Let me re-read `b2/api.py` around line 215.
TOOL CALL · read_file
{
"end_line": 220,
"filepath": "b2/api.py",
"start_line": 200
}Result of read_file 938 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:",
"start_line": 200,
"end_line": 220,
"total_lines": 372,
"is_truncated": false
}Generated tokens 292 tokens · stopped: STOP
Wait, why is `self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)` calling `url_factory()`?
Let's check the traceback.
```
File "/workspace/b2/api.py", line 215, in get_bucket_by_name
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
File "/workspace/b2/session.py", line 36, in wrapper
api_url = url_factory()
```
Wait, if `get_bucket_by_name` is called, line 215 is `id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)`.
But the traceback says it goes to `b2/session.py`, line 36, in `wrapper`.
Wait, is `self.cache` being wrapped by `B2Session`? That's impossible.
Let me re-read `b2/api.py` around line 215.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:200,end_line:220}<tool_call|><|tool_response>
Turn 9at 310 s242 tokens out14,635 prompt tokens
Line 215 is indeed `id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)`.
Why does the traceback say it's in `b2/session.py`, line 36, in `wrapper`?
```
File "/workspace/b2/api.py", line 215, in get_bucket_by_name
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
File "/workspace/b2/session.py", line 36, in wrapper
api_url = url_factory()
```
This suggests that `self.cache.get_bucket_id_or_none_from_bucket_name` was replaced by something that uses `B2Session`'s `__getattr__`Mechanism.
Let's look at how `B2Api` is initialized.
TOOL CALL · read_file
{
"filepath": "b2/api.py",
"start_line": 1
}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 242 tokens · stopped: STOP
Line 215 is indeed `id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)`.
Why does the traceback say it's in `b2/session.py`, line 36, in `wrapper`?
```
File "/workspace/b2/api.py", line 215, in get_bucket_by_name
id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)
File "/workspace/b2/session.py", line 36, in wrapper
api_url = url_factory()
```
This suggests that `self.cache.get_bucket_id_or_none_from_bucket_name` was replaced by something that uses `B2Session`'s `__getattr__`Mechanism.
Let's look at how `B2Api` is initialized.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:1}<tool_call|><|tool_response>
Turn 10at 387 s251 tokens out5,623 prompt tokens
Wait, I see:
```python
self.session = B2Session(self, self.raw_api)
```
And my repro script did:
```python
api = B2Api(account_info, session, cache)
session._api = api
```
Wait, `B2Api.__init__` does not take `session` as an argument!
```python
def __init__(self, account_info=None, cache=None, raw_api=None, max_upload_workers=10):
```
My repro script was passing `session` as the second argument, which `B2Api.__init__` interprets as `cache`.
So `self.cache` became the `session` object!
And `session.get_bucket_id_or_none_from_bucket_name` is not a method of `B2Session`, so it goes to `B2Session.__getattr__`.
Let's look at `B2Session.__getattr__` (or however it's implemented).
TOOL CALL · read_file
{
"filepath": "b2/session.py"
}Result of read_file 3,416 characters
{
"status": "ok",
"filepath": "b2/session.py",
"content": "######################################################################\n#\n# File: b2/session.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 functools\n\nfrom b2.exception import (InvalidAuthToken, Unauthorized)\nfrom b2.raw_api import ALL_CAPABILITIES\n\n\nclass B2Session(object):\n \"\"\"\n A *magic* facade that supplies the correct api_url and account_auth_token\n to methods of underlying raw_api and reauthorizes if necessary\n \"\"\"\n\n def __init__(self, api, raw_api):\n self._api = api # for reauthorization\n self.raw_api = raw_api\n\n def __getattr__(self, name):\n f = getattr(self.raw_api, name)\n\n @functools.wraps(f)\n def wrapper(*args, **kwargs):\n auth_failure_encountered = False\n # download_by_name uses different URLs\n url_factory = kwargs.pop('url_factory', self._api.account_info.get_api_url)\n while 1:\n api_url = url_factory()\n account_auth_token = self._api.account_info.get_account_auth_token()\n try:\n return f(api_url, account_auth_token, *args, **kwargs)\n except InvalidAuthToken:\n if not auth_failure_encountered:\n auth_failure_encountered = True\n reauthorization_success = self._api.authorize_automatically()\n if reauthorization_success:\n continue\n # TODO: exception chaining could be added here\n # to help debug reauthorization failures\n raise\n except Unauthorized as e:\n raise self._add_app_key_info_to_unauthorized(e)\n\n return wrapper\n\n def _add_app_key_info_to_unauthorized(self, unauthorized):\n \"\"\"\n Takes an Unauthorized error and adds information from the application key\n about why it might have failed.\n \"\"\"\n # What's allowed?\n allowed = self._api.account_info.get_allowed()\n capabilities = allowed['capabilities']\n bucket_name = allowed['bucketName']\n name_prefix = allowed['namePrefix']\n\n # Make a list of messages about the application key restrictions\n key_messages = []\n if set(capabilities) != set(ALL_CAPABILITIES):\n key_messages.append(\"with capabilities '\" + ','.join(capabilities) + \"'\")\n if bucket_name is not None:\n key_messages.append(\"restricted to bucket '\" + bucket_name + \"'\")\n if name_prefix is not None:\n key_messages.append(\"restricted to files that start with '\" + name_prefix + \"'\")\n if not key_messages:\n key_messages.append('with no restrictions')\n\n # Make a new message\n new_message = unauthorized.message\n if new_message == '':\n new_message = 'unauthorized'\n new_message += ' for application key ' + ', '.join(key_messages)\n\n return Unauthorized(new_message, unauthorized.code)",
"start_line": 1,
"end_line": 82,
"total_lines": 82,
"is_truncated": false
}Generated tokens 251 tokens · stopped: STOP
Wait, I see:
```python
self.session = B2Session(self, self.raw_api)
```
And my repro script did:
```python
api = B2Api(account_info, session, cache)
session._api = api
```
Wait, `B2Api.__init__` does not take `session` as an argument!
```python
def __init__(self, account_info=None, cache=None, raw_api=None, max_upload_workers=10):
```
My repro script was passing `session` as the second argument, which `B2Api.__init__` interprets as `cache`.
So `self.cache` became the `session` object!
And `session.get_bucket_id_or_none_from_bucket_name` is not a method of `B2Session`, so it goes to `B2Session.__getattr__`.
Let's look at `B2Session.__getattr__` (or however it's implemented).
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/session.py<|"|>}<tool_call|><|tool_response>
Turn 11at 412 s612 tokens out6,775 prompt tokens
Exactly. `B2Session.__getattr__` delegates to `raw_api` and wraps the function call with `url_factory` and `account_auth_token`. So my repro script was wrong because it passed `session` as the `cache` argument. Let's fix the repro script.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom b2.api import B2Api\nfrom b2.exception import RestrictedBucket\nfrom b2.account_info.in_memory import InMemoryAccountInfo\nfrom b2.session import B2Session\nfrom b2.cache import InMemoryCache\nfrom unittest.mock import MagicMock\n\nclass MockAccountInfo(InMemoryAccountInfo):\n def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):\n super().__init__()\n self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id, 'capabilities': [], 'namePrefix': None}\n def get_allowed(self):\n return self.allowed\n def get_account_id(self):\n return 'account_id'\n def get_api_url(self):\n return 'http://api.url'\n def get_account_auth_token(self):\n return 'token'\n\ndef test_restricted_bucket():\n account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')\n \n # Use B2Api as intended\n # B2Api handles creation of session internally.\n # We can pass a mock raw_api to avoid network calls.\n raw_api = MagicMock()\n cache = InMemoryCache()\n \n api = B2Api(account_info=account_info, cache=cache, raw_api=raw_api)\n \n # Mock raw_api.list_buckets to return something\n raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}\n \n try:\n print(\"Calling get_bucket_by_name('pc-backup')...\")\n api.get_bucket_by_name('pc-backup')\n print(\"Success!\")\n except RestrictedBucket as e:\n print(f\"Caught expected RestrictedBucket: {e}\")\n except Exception as e:\n print(f\"Caught unexpected exception: {type(e).__name__}: {e}\")\n import traceback\n traceback.print_exc()\n\nif __name__ == \"__main__\":\n test_restricted_bucket()\nPY\n"
}Result of run_command 190 characters
{
"status": "ok",
"stdout": "Calling get_bucket_by_name('pc-backup')...\nCaught expected RestrictedBucket: Application key is restricted to bucket: pc-backup\n",
"stderr": "",
"exit_code": 0
}Generated tokens 612 tokens · stopped: STOP
Exactly. `B2Session.__getattr__` delegates to `raw_api` and wraps the function call with `url_factory` and `account_auth_token`.
So my repro script was wrong because it passed `session` as the `cache` argument.
Let's fix the repro script.<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from b2.api import B2Api
from b2.exception import RestrictedBucket
from b2.account_info.in_memory import InMemoryAccountInfo
from b2.session import B2Session
from b2.cache import InMemoryCache
from unittest.mock import MagicMock
class MockAccountInfo(InMemoryAccountInfo):
def __init__(self, allowed_bucket_name=None, allowed_bucket_id=None):
super().__init__()
self.allowed = {'bucketName': allowed_bucket_name, 'bucketId': allowed_bucket_id, 'capabilities': [], 'namePrefix': None}
def get_allowed(self):
return self.allowed
def get_account_id(self):
return 'account_id'
def get_api_url(self):
return 'http://api.url'
def get_account_auth_token(self):
return 'token'
def test_restricted_bucket():
account_info = MockAccountInfo(allowed_bucket_name='pc-backup', allowed_bucket_id='bucket_id_123')
# Use B2Api as intended
# B2Api handles creation of session internally.
# We can pass a mock raw_api to avoid network calls.
raw_api = MagicMock()
cache = InMemoryCache()
api = B2Api(account_info=account_info, cache=cache, raw_api=raw_api)
# Mock raw_api.list_buckets to return something
raw_api.list_buckets.return_value = {'buckets': [{'bucketId': 'bucket_id_123', 'bucketName': 'pc-backup'}]}
try:
print("Calling get_bucket_by_name('pc-backup')...")
api.get_bucket_by_name('pc-backup')
print("Success!")
except RestrictedBucket as e:
print(f"Caught expected RestrictedBucket: {e}")
except Exception as e:
print(f"Caught unexpected exception: {type(e).__name__}: {e}")
import traceback
traceback.print_exc()
if __name__ == "__main__":
test_restricted_bucket()
PY
<|"|>}<tool_call|><|tool_response>
Turn 12at 420 s141 tokens out7,458 prompt tokens
YES! I reproduced it. `get_bucket_by_name('pc-backup')` raised `RestrictedBucket`.
Now let's verify the root cause: `get_bucket_by_name` calls `self.check_bucket_restrictions(bucket_name)`.
Wait, I just saw `self.check_bucket_restrictions(bucket_name)` in `get_bucket_by_name`.
Let's check `check_bucket_restrictions` implementation.
TOOL CALL · read_file
{
"end_line": 200,
"filepath": "b2/api.py",
"start_line": 180
}Result of read_file 1,067 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": " name,\n bucket_type,\n bucket_info=bucket_info,\n cors_rules=cors_rules,\n lifecycle_rules=lifecycle_rules\n )\n bucket = BucketFactory.from_api_bucket_dict(self, response)\n assert name == bucket.name, 'API created a bucket with different name\\\n than requested: %s != %s' % (name, bucket.name)\n assert bucket_type == bucket.type_, 'API created a bucket with different type\\\n than requested: %s != %s' % (\n bucket_type, bucket.type_\n )\n self.cache.save_bucket(bucket)\n return bucket\n\n def download_file_by_id(self, file_id, download_dest, progress_listener=None, range_=None):\n url = self.session.get_download_url_by_id(\n file_id,\n url_factory=self.account_info.get_download_url,\n )",
"start_line": 180,
"end_line": 200,
"total_lines": 372,
"is_truncated": false
}Generated tokens 141 tokens · stopped: STOP
YES! I reproduced it. `get_bucket_by_name('pc-backup')` raised `RestrictedBucket`.
Now let's verify the root cause: `get_bucket_by_name` calls `self.check_bucket_restrictions(bucket_name)`.
Wait, I just saw `self.check_bucket_restrictions(bucket_name)` in `get_bucket_by_name`.
Let's check `check_bucket_restrictions` implementation.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:180,end_line:200}<tool_call|><|tool_response>
Turn 13at 425 s56 tokens out7,913 prompt tokens
I missed it. Let me search for `check_bucket_restrictions` in `b2/api.py`.
TOOL CALL · run_command
{
"command": "grep -n \"def check_bucket_restrictions\" b2/api.py"
}Result of run_command 119 characters
{
"status": "ok",
"stdout": "359: def check_bucket_restrictions(self, bucket_name):\n",
"stderr": "",
"exit_code": 0
}Generated tokens 56 tokens · stopped: STOP
I missed it. Let me search for `check_bucket_restrictions` in `b2/api.py`.<channel|><|tool_call>call:run_command{command:<|"|>grep -n "def check_bucket_restrictions" b2/api.py<|"|>}<tool_call|><|tool_response>
Turn 14at 428 s38 tokens out8,027 prompt tokens
Looking at line 359.
TOOL CALL · read_file
{
"filepath": "b2/api.py",
"start_line": 355
}Result of read_file 895 characters
{
"status": "ok",
"filepath": "b2/api.py",
"content": " 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": 355,
"end_line": 372,
"total_lines": 372,
"is_truncated": false
}Generated tokens 38 tokens · stopped: STOP
Looking at line 359.
<channel|><|tool_call>call:read_file{filepath:<|"|>b2/api.py<|"|>,start_line:355}<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.
[ 24.4s] 💭 (1198 chars) "The user is reporting a bug where `b2.api.B2Api.get_bucket_by_name` does not work with
bucket-scoped application keys.
T..."
[ 24.4s] 📖 read_file (b2/api.py)
[ 24.4s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' )\n return
self.transferer.download_file_from_url(u…
[ 49.9s] 💭 (1855 chars) "I see `get_bucket_by_name` on line 206:
```python
def get_bucket_by_name(self, bucket_name):
"""
Re..."
[ 49.9s] 📖 read_file (b2/api.py)
[ 50.0s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' return self.session.list_keys(\n
account_id, ma…
[ 226.3s] 💭 (8387 chars) "Exactly. `check_bucket_restrictions` checks if `allowed_bucket_name` is not `None`. If it
is not `None` (meaning there i..."
[ 226.3s] 🔧 run_command (45 lines) python3 - <<'PY'
[ 226.4s] → error (exit 0):
[ 230.3s] 💭 (67 chars) "Ah, `Session` is not in `b2.session`. Let me check `b2/session.py`."
[ 230.3s] 📖 read_file (b2/session.py)
[ 230.3s] ✓ {'status': 'ok', 'filepath': 'b2/session.py', 'content':
'##############################################################…
[ 257.9s] 💭 (56 chars) "It is `B2Session`.
Let's retry the reproduction script."
[ 257.9s] 🔧 run_command (51 lines) python3 - <<'PY'
[ 258.0s] → error (exit 0):
[ 262.0s] 💭 (49 chars) "Another import error. Let me check `b2/cache.py`."
[ 262.0s] 📖 read_file (b2/cache.py)
[ 262.1s] ✓ {'status': 'ok', 'filepath': 'b2/cache.py', 'content':
'################################################################…
[ 281.2s] 💭 (64 chars) "It's `InMemoryCache` or `DummyCache`. Let's use `InMemoryCache`."
[ 281.2s] 🔧 run_command (47 lines) python3 - <<'PY'
[ 281.3s] → Calling get_bucket_by_name('pc-backup')...
[ 298.3s] 💭 (674 chars) "Wait, why is `self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)` calling
`url_factory()`?
Let's check the t..."
[ 298.3s] 📖 read_file (b2/api.py)
[ 298.3s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' )\n return
self.transferer.download_file_from_url(u…
[ 309.3s] 💭 (583 chars) "Line 215 is indeed `id_ = self.cache.get_bucket_id_or_none_from_bucket_name(bucket_name)`.
Why does the traceback say i..."
[ 309.3s] 📖 read_file (b2/api.py)
[ 309.4s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content':
'##################################################################…
[ 386.2s] 💭 (706 chars) "Wait, I see:
```python
self.session = B2Session(self, self.raw_api)
```
And my repro script did:
```python
a..."
[ 386.2s] 📖 read_file (b2/session.py)
[ 386.3s] ✓ {'status': 'ok', 'filepath': 'b2/session.py', 'content':
'##############################################################…
[ 411.6s] 💭 (240 chars) "Exactly. `B2Session.__getattr__` delegates to `raw_api` and wraps the function call with
`url_factory` and `account_auth..."
[ 411.6s] 🔧 run_command (49 lines) python3 - <<'PY'
[ 411.8s] → Calling get_bucket_by_name('pc-backup')...
[ 419.6s] 💭 (335 chars) "YES! I reproduced it. `get_bucket_by_name('pc-backup')` raised `RestrictedBucket`.
Now let's verify the root cause: `ge..."
[ 419.6s] 📖 read_file (b2/api.py)
[ 419.7s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': " name,\n bucket_type,\n
bucket_in…
[ 424.3s] 💭 (74 chars) "I missed it. Let me search for `check_bucket_restrictions` in `b2/api.py`."
[ 424.3s] 🔧 run_command grep -n "def check_bucket_restrictions" b2/api.py
[ 424.3s] → 359: def check_bucket_restrictions(self, bucket_name):
[ 427.8s] 💭 (20 chars) "Looking at line 359."
[ 427.8s] 📖 read_file (b2/api.py)
[ 427.8s] ✓ {'status': 'ok', 'filepath': 'b2/api.py', 'content': ' def get_file_info(self, file_id):\n """
legacy interfac…
Native result row
{
"agent_error": "Agent exceeded session timeout (7.5 min)",
"duration_seconds": 452.72,
"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__r5.jsonl",
"resolved": false,
"rollout_idx": 5,
"run_key": "backblaze__b2_command_line_tool-488__p0__r5",
"strict_clean_patch": false,
"tool_calls": 14,
"total_llm_calls": 14,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_backblaze__b2_command_line_tool-488__p0__r5.json"
}