new

code/revprox.py

@@ -0,0 +1,33 @@
+class ReverseProxied(object):
+    """Wrap the application in this middleware and configure the
+    front-end server to add these headers, to let you quietly bind
+    this to a URL other than / and to an HTTP scheme that is
+    different than what is used locally.
+
+    In nginx:
+    location /myprefix {
+        proxy_pass http://192.168.0.1:5001;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Scheme $scheme;
+        proxy_set_header X-Script-Name /myprefix;
+        }
+
+    :param app: the WSGI application
+    """
+
+    def __init__(self, app):
+        self.app = app
+
+    def __call__(self, environ, start_response):
+        script_name = environ.get("HTTP_X_SCRIPT_NAME", "")
+        if script_name:
+            environ["SCRIPT_NAME"] = script_name
+            path_info = environ["PATH_INFO"]
+            if path_info.startswith(script_name):
+                environ["PATH_INFO"] = path_info[len(script_name) :]
+
+        scheme = environ.get("HTTP_X_SCHEME", "")
+        if scheme:
+            environ["wsgi.url_scheme"] = scheme
+        return self.app(environ, start_response)