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ragflow/rag/utils/url_utils.py
2026-07-09 15:53:06 +08:00

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#
# Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import re
from urllib.parse import urlparse, urlunparse
def ensure_v1(url: str) -> str:
"""Ensure the URL ends with a versioned path segment like ``/v1``.
If the path already contains a segment matching ``v{digit}`` (e.g. ``/v1``,
``/v2``, ``/v3``), the URL is returned unchanged. Otherwise the base host
is kept and ``/v1`` is appended.
Examples::
>>> ensure_v1("https://api.example.com")
'https://api.example.com/v1'
>>> ensure_v1("https://api.example.com/v1")
'https://api.example.com/v1'
>>> ensure_v1("https://api.example.com/v2/chat")
'https://api.example.com/v2/chat'
>>> ensure_v1("https://api.example.com/api/v3")
'https://api.example.com/api/v3'
"""
if not url:
return url
parsed = urlparse(url)
path = parsed.path.rstrip("/")
# Check if any path segment matches v{digit}, e.g. /v1, /v2, /v3
if re.search(r"/v\d+(?:/|$)", path + "/"):
return url
# No versioned segment found append /v1
new_path = (path + "/v1") if path else "/v1"
return urlunparse((parsed.scheme, parsed.netloc, new_path, parsed.params, parsed.query, parsed.fragment))