--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/cherrypy/lib/filter/baseurlfilter.py	Tue Jul 14 16:41:58 2009 -0500
@@ -0,0 +1,54 @@
+"""
+Copyright (c) 2004, CherryPy Team (team@cherrypy.org)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, 
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, 
+      this list of conditions and the following disclaimer in the documentation 
+      and/or other materials provided with the distribution.
+    * Neither the name of the CherryPy Team nor the names of its contributors 
+      may be used to endorse or promote products derived from this software 
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+"""
+
+from basefilter import BaseInputFilter
+from cherrypy import cpg
+
+class BaseUrlFilter(BaseInputFilter):
+    """
+    Filter that changes the base URL.
+    Useful when running a CP server behind Apache.
+    """
+
+    def __init__(self, baseUrl = 'http://localhost', useXForwardedHost = True):
+        # New baseUrl
+        self.baseUrl = baseUrl
+        self.useXForwardedHost = useXForwardedHost
+
+    def afterRequestHeader(self):
+        if self.useXForwardedHost:
+            newBaseUrl = cpg.request.headerMap.get("X-Forwarded-Host", self.baseUrl)
+        else:
+            newBaseUrl = self.baseUrl
+        if newBaseUrl.find("://") == -1:
+            # add http:// or https:// if needed	
+            newBaseUrl = cpg.request.base[:cpg.request.base.find("://") + 3] + newBaseUrl
+
+        cpg.request.browserUrl = cpg.request.browserUrl.replace(
+            cpg.request.base, newBaseUrl)
+        cpg.request.base = newBaseUrl