2026-09-23 22:05:00 +08:00
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"""
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2026-10-26 00:50:43 +08:00
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Copyright 2024-2026 ReplyPier
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2026-09-23 22:05:00 +08:00
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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The client's IP for keying (rate limits, telling visitors apart). Our nginx
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APPENDS the real client IP to any X-Forwarded-For the client sent, so only
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the RIGHTMOST entry is trustworthy - the first one can be anything.
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"""
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from fastapi import Request
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def forwarded_client_ip(request: Request) -> str:
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forwarded = request.headers.get("x-forwarded-for")
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if forwarded:
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return forwarded.split(",")[-1].strip()
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return request.client.host if request.client else "unknown"
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