mirror of
https://github.com/infiniflow/ragflow.git
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52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
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#
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# Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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import re
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from api.constants import NICKNAME_MAX_LENGTH
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from common.constants import RetCode
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# Match frontend NICKNAME_PATTERN: letters, numbers, space, and . _ ' -
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_NICKNAME_PATTERN = re.compile(r"^[\w ._'-]+$", re.UNICODE)
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def _reject_nickname(message: str) -> tuple[str, int]:
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logging.warning("Nickname validation failed: %s", message)
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return message, RetCode.ARGUMENT_ERROR
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def validate_nickname(nickname: str | None) -> tuple[str | None, int | None]:
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"""
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Validate a user nickname/display name.
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Returns:
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A tuple of (error_message, error_code) if validation fails,
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or (None, None) if validation passes.
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"""
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if not isinstance(nickname, (str, type(None))):
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return _reject_nickname("Nickname must be a string.")
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if nickname is None:
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return _reject_nickname("Nickname is required.")
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nickname = nickname.strip()
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if not nickname:
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return _reject_nickname("Nickname cannot be empty.")
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if len(nickname) > NICKNAME_MAX_LENGTH:
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return _reject_nickname(f"Nickname must be at most {NICKNAME_MAX_LENGTH} characters.")
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if not _NICKNAME_PATTERN.fullmatch(nickname):
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return _reject_nickname("Nickname contains invalid characters.")
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return None, None
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