81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
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from __future__ import annotations
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import logging
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logger = logging.getLogger(__name__)
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class MattermostError(Exception):
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def __init__(self, status_code: int, message: str, api_error: dict | None = None) -> None:
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self.status_code = status_code
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self.message = message
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self.api_error = api_error
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super().__init__(f"Mattermost API error {status_code}: {message}")
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class MattermostNetworkError(MattermostError):
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pass
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class MattermostAuthError(MattermostError):
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pass
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class MattermostRateLimitError(MattermostError):
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def __init__(self, status_code: int, message: str, retry_after_ms: float = 5000) -> None:
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super().__init__(status_code, message)
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self.retry_after_ms = retry_after_ms
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def parse_mattermost_error(response) -> MattermostError:
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body = None
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try:
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body = response.json()
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message = body.get("message", "") or response.text
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except Exception:
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message = response.text
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status_code = response.status_code
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if status_code == 401:
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return MattermostAuthError(status_code, message)
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if status_code == 429:
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retry_after_ms = _parse_retry_after(response) or 5000
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return MattermostRateLimitError(status_code, message, retry_after_ms)
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if status_code >= 500:
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return MattermostNetworkError(status_code, message)
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return MattermostError(status_code, message, body)
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def _parse_retry_after(response) -> float | None:
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header = response.headers.get("Retry-After", "")
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if not header:
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return None
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try:
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return float(header) * 1000
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except ValueError:
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return None
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def is_retryable_error(status_code: int) -> bool:
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return status_code == 429 or status_code >= 500
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def classify_error(
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error: Exception,
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) -> tuple[str, bool]:
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if isinstance(error, MattermostAuthError):
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return "auth", False
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if isinstance(error, MattermostRateLimitError):
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return "rate_limit", True
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if isinstance(error, MattermostNetworkError):
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return "network", True
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if isinstance(error, MattermostError):
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if error.status_code == 403:
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return "forbidden", False
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if error.status_code == 404:
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return "not_found", False
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return "api_error", is_retryable_error(error.status_code)
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return "unknown", True
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