api-endpoint-permission-canonicalizer

{"content": "", "total_lines": 0, "file_size": 0, "truncated": false, "is_binary": false, "is_image": false, "error": "File not found: /app/input.txt"}

{"output": "total 8\ndrwxr-xr-x 2 root root 4096 Mar  4 09:08 .\ndrwxr-xr-x 1 root root 4096 Apr 22 19:04 ..", "exit_code": 0, "error": null}

Let me check the current directory structure and create the implementation.

→ terminal({"command": "ls -la /app/"})

{"bytes_written": 13545, "dirs_created": true}

{"bytes_written": 369, "dirs_created": true}

Now let me test with a sample input file to verify the implementation works:

→ write_file({"path": "/app/input.txt", "content": "ENDPOINTS\n/api/users GET admin ALLOW\n/api/users POST admin ALLOW\n/api/users/{id} GET admin ALLOW\n/api/users/{id} PUT admin ALLOW\n/api/users/{id} DELETE admin DENY\n/api/posts GET user ALLOW\n/api/posts POST user ALLOW\n/base/api/data GET restricted ALLOW\n/base/api/data POST restricted DENY\n\nbase /base/api\n\nexclude restricted\n\nPLAN\n/base/api/data …)

{"output": "/base/api/data GET restricted ALLOW\n/base/api/data POST restricted DENY", "exit_code": 0, "error": null}

{"content": "     1|#!/usr/bin/env python3\n     2|\"\"\"\n     3|API Endpoint Permission Canonicalizer\n     4|\n     5|Transforms an API endpoint permission configuration into a canonical form\n     6|following access control and endpoint hierarchy semantics with strict validation,\n     7|hard cutoff parsing, and complex permission resolution algorithms.\n     8|\"\"\"\n     9|\n    10|import re\n    11|import sys\n    12|from collections import OrderedDict\n    13|\n    14|VALID_METHODS = {'GET', 'POST', 'PUT', 'DELETE', 'PATCH'}\n    15|VALID_PERMISSIONS = {'ALLOW', 'DENY'}\n    16|\n    17|def normalize_method(method):\n    18|    \"\"\"Normalize method to uppercase.\"\"\"\n    19|    return method.upper()\n    20|\n    21|def normalize_permission(permission):\n    22|    \"\"\"Normalize permission to uppercase.\"\"\"\n    23|    return permission.upper()\n    24|\n    25|def is_valid_method(method):\n    26|    \"\"\"Check if method is valid.\"\"\"\n    27|    return method.upper() in VALID_METHODS\n    28|\n    29|def is_valid_permission(permission):\n    30|    \"\"\"Check if permission is valid.\"\"\"\n    31|    return permission.upper() in VALID_PERMISSIONS\n    32|\n    33|def extract_path_variables(path):\n    34|    \"\"\"Extract variable names from path using pattern {var_name}.\"\"\"\n    35|    pattern = r'\\{([a-zA-Z0-9_-]+)\\}'\n    36|    return re.findall(pattern, path)\n    37|\n    38|def normalize_path_for_matching(path):\n    39|    \"\"\"Normalize path for matching by replacing variable patterns with {var}.\"\"\"\n    40|    pattern = r'\\{[a-zA-Z0-9_-]+\\}'\n    41|    return re.sub(pattern, '{var}', path)\n    42|\n    43|def get_path_segments(path):\n    44|    \"\"\"Count non-empty segments in path.\"\"\"\n    45|    parts = path.split('/')\n    46|    return len([p for p in parts if p])\n    47|\n    48|def parse_endpoints_section(lines):\n    49|    \"\"\"\n    50|    Parse ENDPOINTS section.\n    51|    Returns (endpoints_list, cutoff_index) where cutoff_index is the index\n    52|    where parsing stopped due to malformed line, or len(lines) if no cutoff.\n    53|    \"\"\"\n    54|    endpoints = []\n    55|    cutoff_index = len(lines)\n    56|    \n    57|    for i, line in enumerate(lines):\n    58|        stripped = line.strip()\n    59|        if not stripped:\n    60|            # Empty line ends the section\n    61|            cutoff_index = i\n    62|            break\n    63|        \n    64|        parts = stripped.split()\n    65|        if len(parts) != 4:\n    66|            # Malformed line - stop parsing\n    67|            cutoff_index = i\n    68|            break\n    69|        \n    70|        path, method, role, permission = parts\n    71|        \n    72|        # Validate path is not empty after stripping\n    73|        if not path.strip():\n    74|            cutoff_index = i\n    75|            break\n    76|        \n    77|        # Validate method\n    78|        if not is_valid_method(method):\n    79|            cutoff_index = i\n    80|            break\n    81|        \n    82|        # Validate role is not empty after stripping\n    83|        if not role.strip():\n    84|            cutoff_index = i\n    85|            break\n    86|        \n    87|        # Validate permission\n    88|        if not is_valid_permission(permission):\n    89|            cutoff_index = i\n    90|            break\n    91|        \n    92|        # Normalize and store\n    93|        normalized_method = normalize_method(method)\n    94|        normalized_permission = normalize_permission(permission)\n    95|        \n    96|        # Store original path with variable names, plus normalized version\n    97|        endpoints.append({\n    98|            'original_path': path,\n    99|            'normalized_path': normalize_path_for_matching(path),\n   100|            'method': normalized_method,\n   101|            'role': role,\n   102|            'permission': normalized_per

There's an issue - the `restricted` role should be excluded. Let me review the requirements more carefully and fix the implementation:

→ read_file({"path": "/app/canonicalize.py"})

{"bytes_written": 5704, "dirs_created": true}

I see the issue. Looking at the spec more carefully:

1. When `base /base/api` is specified, only endpoints starting with `/base/api` are included
2. When `exclude restricted` is specified, `restricted` role is excluded
3. But in my test case, the endpoints in PLAN (`/base/api/data GET` and `/base/api/data POST`) are for `restricted` role which is excluded

So the output should be empty (or just a newline) because the only matching endpoints are for the `restricted` role which is excluded.

Let me trace through the logic more carefully. The issue is that when PLAN is specified, we're finding the plan endpoints in the filtered list (which excludes `restricted` role), but then we're not finding any matches. Let me trace through more carefully:

1. Endpoints are parsed
2. Base path filter: only `/base/api/data` endpoints remain
3. Excluded roles filter: `restricted` role is excluded, so no endpoints remain
4. PLAN is specified, but no matching endpoints in filtered list
5. Output should be empty (just newline)

But my test output shows the `restricted` role endpoints. Let me debug:

→ write_file({"path": "/app/test_debug.py", "content": "#!/usr/bin/env python3\nimport re\n\nVALID_METHODS = {'GET', 'POST', 'PUT', 'DELETE', 'PATCH'}\nVALID_PERMISSIONS = {'ALLOW', 'DENY'}\n\ndef normalize_path_for_matching(path):\n    pattern = r'\\{[a-zA-Z0-9_-]+\\}'\n    return re.sub(pattern, '{var}', path)\n\ndef get_path_segments(path):\n    parts = path.split('/')\n    return len([p for p in parts if p…)

{"output": "ENDPOINTS lines: ['/api/users GET admin ALLOW', '/api/users POST admin ALLOW', '/api/users/{id} GET admin ALLOW', '/api/users/{id} PUT admin ALLOW', '/api/users/{id} DELETE admin DENY', '/api/posts GET user ALLOW', '/api/posts POST user ALLOW', '/base/api/data GET restricted ALLOW', '/base/api/data POST restricted DENY']\nBASE/EXCLUDE lines: []\nPLAN lines: ['/base/api/data GET', '/base/api/data POST']\n\nParsed endpoints:\n  {'original_path': '/api/users', 'normalized_path': '/api/users', 'method': 'GET', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 0}\n  {'original_path': '/api/users', 'normalized_path': '/api/users', 'method': 'POST', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 1}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'GET', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 2}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'PUT', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 3}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'DELETE', 'role': 'admin', 'permission': 'DENY', 'line_index': 4}\n  {'original_path': '/api/posts', 'normalized_path': '/api/posts', 'method': 'GET', 'role': 'user', 'permission': 'ALLOW', 'line_index': 5}\n  {'original_path': '/api/posts', 'normalized_path': '/api/posts', 'method': 'POST', 'role': 'user', 'permission': 'ALLOW', 'line_index': 6}\n  {'original_path': '/base/api/data', 'normalized_path': '/base/api/data', 'method': 'GET', 'role': 'restricted', 'permission': 'ALLOW', 'line_index': 7}\n  {'original_path': '/base/api/data', 'normalized_path': '/base/api/data', 'method': 'POST', 'role': 'restricted', 'permission': 'DENY', 'line_index': 8}\n\nBase path: None\nExcluded roles: set()\n\nParsed plan:\n  {'original_path': '/base/api/data', 'normalized_path': '/base/api/data', 'method': 'GET', 'line_index': 0}\n  {'original_path': '/base/api/data', 'normalized_path': '/base/api/data', 'method': 'POST', 'line_index': 1}\n\nFiltering endpoints:\n  /api/users: base_path=None, starts_with=None, role=admin, excluded=False\n    -> Included\n  /api/users: base_path=None, starts_with=None, role=admin, excluded=False\n    -> Included\n  /api/users/{id}: base_path=None, starts_with=None, role=admin, excluded=False\n    -> Included\n  /api/users/{id}: base_path=None, starts_with=None, role=admin, excluded=False\n    -> Included\n  /api/users/{id}: base_path=None, starts_with=None, role=admin, excluded=False\n    -> Included\n  /api/posts: base_path=None, starts_with=None, role=user, excluded=False\n    -> Included\n  /api/posts: base_path=None, starts_with=None, role=user, excluded=False\n    -> Included\n  /base/api/data: base_path=None, starts_with=None, role=restricted, excluded=False\n    -> Included\n  /base/api/data: base_path=None, starts_with=None, role=restricted, excluded=False\n    -> Included\n\nFiltered endpoints count: 9\n  {'original_path': '/api/users', 'normalized_path': '/api/users', 'method': 'GET', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 0}\n  {'original_path': '/api/users', 'normalized_path': '/api/users', 'method': 'POST', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 1}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'GET', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 2}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'PUT', 'role': 'admin', 'permission': 'ALLOW', 'line_index': 3}\n  {'original_path': '/api/users/{id}', 'normalized_path': '/api/users/{var}', 'method': 'DELETE', 'role': 'admin', 'permission': 'DENY', 'line_index': 4}\n  {'original_path': '/api/posts', 'normalized_path': '/api/posts', 'method': 'GET', 'role': 'user', 'permission': 'ALLOW', 'line_index': 5}\n  {'original_path': '/api/posts', 'normalized_path': '/api/posts', 'method': 'POST', 'role': 'user', 'permission': 'ALLOW', 'line_in