From 38c5d1e6224417f3c0c5b22b29d07b1390669a5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=B1=E6=BD=AE?= <zhuchaowe@users.noreply.github.com>
Date: Mon, 9 Mar 2026 18:51:08 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=96=B9=E6=A1=88=EF=BC=9A?=
 =?UTF-8?q?=E5=9C=A8=20routes/webdav.py=20=E4=B8=AD=E6=B7=BB=E5=8A=A0?=
 =?UTF-8?q?=E4=BA=86=E4=B8=80=E4=B8=AA=20WSGI=20=E4=B8=AD=E9=97=B4?=
 =?UTF-8?q?=E4=BB=B6=E5=8C=85=E8=A3=85=E5=87=BD=E6=95=B0=EF=BC=8C=E5=9C=A8?=
 =?UTF-8?q?=E8=AF=B7=E6=B1=82=E5=88=B0=E8=BE=BE=20WsgiDAV=20=E5=89=8D?=
 =?UTF-8?q?=EF=BC=9A=20=20=201.=20=E8=AF=BB=E5=8F=96=20X-Forwarded-Proto?=
 =?UTF-8?q?=20=E8=AE=BE=E7=BD=AE=E6=AD=A3=E7=A1=AE=E7=9A=84=20wsgi.url=5Fs?=
 =?UTF-8?q?cheme=20=20=202.=20=E5=B0=86=20Destination=20=E5=A4=B4=E4=B8=AD?=
 =?UTF-8?q?=E7=9A=84=E5=A4=96=E9=83=A8=20scheme/host=20=E9=87=8D=E5=86=99?=
 =?UTF-8?q?=E4=B8=BA=E5=86=85=E9=83=A8=E5=AE=9E=E9=99=85=E5=80=BC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 routes/webdav.py | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/routes/webdav.py b/routes/webdav.py
index a1a655e..c89745d 100644
--- a/routes/webdav.py
+++ b/routes/webdav.py
@@ -6,6 +6,7 @@ WebDAV 文件管理路由
 """
 
 from pathlib import Path
+from urllib.parse import urlparse, urlunparse
 
 from wsgidav.wsgidav_app import WsgiDAVApp
 from wsgidav.fs_dav_provider import FilesystemProvider
@@ -56,4 +57,36 @@ config = {
     },
 }
 
-wsgidav_app = WsgiDAVApp(config)
+_wsgidav_app = WsgiDAVApp(config)
+
+
+def wsgidav_app(environ, start_response):
+    """WSGI 中间件：处理反向代理场景下 Destination 头的 scheme/host 不匹配问题。
+
+    当服务运行在 HTTPS 反向代理后面时，客户端发送的 Destination 头包含外部 URL
+    （如 https://example.com/webdav/docs/new-name），但 WsgiDAV 内部看到的是 HTTP。
+    这个中间件将 Destination 头重写为与内部请求一致的 scheme 和 host。
+    """
+    # 从 X-Forwarded 头获取外部信息，并确保 wsgi.url_scheme 正确
+    forwarded_proto = environ.get("HTTP_X_FORWARDED_PROTO")
+    if forwarded_proto:
+        environ["wsgi.url_scheme"] = forwarded_proto
+
+    # 重写 Destination 头：将外部 scheme/host 替换为内部实际值
+    destination = environ.get("HTTP_DESTINATION")
+    if destination:
+        parsed = urlparse(destination)
+        # 用内部实际的 scheme 和 host 替换
+        internal_scheme = environ.get("wsgi.url_scheme", "http")
+        internal_host = environ.get("HTTP_HOST", environ.get("SERVER_NAME", "localhost"))
+        rewritten = urlunparse((
+            internal_scheme,
+            internal_host,
+            parsed.path,
+            parsed.params,
+            parsed.query,
+            parsed.fragment,
+        ))
+        environ["HTTP_DESTINATION"] = rewritten
+
+    return _wsgidav_app(environ, start_response)