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Source code for galaxy.web.framework.middleware.xforwardedhost

[docs]class XForwardedHostMiddleware: """ A WSGI middleware that changes the HTTP host header in the WSGI environ based on the X-Forwarded-Host header IF found """
[docs] def __init__(self, app, global_conf=None): self.app = app
def __call__(self, environ, start_response): x_forwarded_host = environ.get("HTTP_X_FORWARDED_HOST", None) if x_forwarded_host: environ["ORGINAL_HTTP_HOST"] = environ["HTTP_HOST"] environ["HTTP_HOST"] = x_forwarded_host.split(", ", 1)[0] x_forwarded_for = environ.get("HTTP_X_FORWARDED_FOR", None) if x_forwarded_for: environ["ORGINAL_REMOTE_ADDR"] = environ["REMOTE_ADDR"] environ["REMOTE_ADDR"] = x_forwarded_for.split(",", 1)[0].strip() x_forwarded_proto = environ.get("HTTP_X_FORWARDED_PROTO", None) if x_forwarded_proto: x_forwarded_proto = x_forwarded_proto.split(",", 1)[0].strip() x_url_scheme = environ.get("HTTP_X_URL_SCHEME", x_forwarded_proto) if x_url_scheme: environ["original_wsgi.url_scheme"] = environ["wsgi.url_scheme"] environ["wsgi.url_scheme"] = x_url_scheme return self.app(environ, start_response)