fix proxyfix.

lnbits/app.py

@@ -9,7 +9,7 @@ from .commands import db_migrate
 from .core import core_app
 from .db import open_db
 from .helpers import get_valid_extensions, get_js_vendored, get_css_vendored, url_for_vendored
-from .proxy_fix import ProxyFix
+from .proxy_fix import ASGIProxyFix
 
 secure_headers = SecureHeaders(hsts=False)
 
@@ -20,10 +20,10 @@ def create_app(config_object="lnbits.settings") -> Quart:
     """
     app = Quart(__name__, static_folder="static")
     app.config.from_object(config_object)
+    app.asgi_http_class = ASGIProxyFix
 
     cors(app)
     Compress(app)
-    ProxyFix(app, x_proto=1, x_host=1)
 
     register_assets(app)
     register_blueprints(app)

lnbits/proxy_fix.py

@@ -1,48 +1,46 @@
-from typing import Optional, List
+from typing import Optional, List, Callable
+from functools import partial
 from urllib.request import parse_http_list as _parse_list_header
+from urllib.parse import urlparse
+from werkzeug.datastructures import Headers
 
-from quart import request
+from quart import Request
+from quart.asgi import ASGIHTTPConnection
 
 
-class ProxyFix:
-    def __init__(self, app=None, x_for: int = 1, x_proto: int = 1, x_host: int = 0, x_port: int = 0, x_prefix: int = 0):
-        self.app = app
-        self.x_for = x_for
-        self.x_proto = x_proto
-        self.x_host = x_host
-        self.x_port = x_port
-        self.x_prefix = x_prefix
+class ASGIProxyFix(ASGIHTTPConnection):
+    def _create_request_from_scope(self, send: Callable) -> Request:
+        headers = Headers()
+        headers["Remote-Addr"] = (self.scope.get("client") or ["<local>"])[0]
+        for name, value in self.scope["headers"]:
+            headers.add(name.decode("latin1").title(), value.decode("latin1"))
+        if self.scope["http_version"] < "1.1":
+            headers.setdefault("Host", self.app.config["SERVER_NAME"] or "")
 
-        if app:
-            self.init_app(app)
+        path = self.scope["path"]
+        path = path if path[0] == "/" else urlparse(path).path
 
-    def init_app(self, app):
-        @app.before_request
-        async def before_request():
-            x_for = self._get_real_value(self.x_for, request.headers.get("X-Forwarded-For"))
-            if x_for:
-                request.headers["Remote-Addr"] = x_for
-
-            x_proto = self._get_real_value(self.x_proto, request.headers.get("X-Forwarded-Proto"))
+        x_proto = self._get_real_value(1, headers.get("X-Forwarded-Proto"))
         if x_proto:
-                request.scheme = x_proto
+            self.scope["scheme"] = x_proto
 
-            x_host = self._get_real_value(self.x_host, request.headers.get("X-Forwarded-Host"))
+        x_host = self._get_real_value(1, headers.get("X-Forwarded-Host"))
         if x_host:
-                request.headers["host"] = x_host.lower()
-                parts = x_host.split(":", 1)
-                # environ["SERVER_NAME"] = parts[0]
-                # if len(parts) == 2:
-                #     environ["SERVER_PORT"] = parts[1]
+            headers["host"] = x_host.lower()
 
-            x_port = self._get_real_value(self.x_port, request.headers.get("X-Forwarded-Port"))
-            if x_port:
-                host = request.host
-                if host:
-                    parts = host.split(":", 1)
-                    host = parts[0] if len(parts) == 2 else host
-                    request.headers["host"] = f"{host}:{x_port}"
-                # environ["SERVER_PORT"] = x_port
+        return self.app.request_class(
+            self.scope["method"],
+            self.scope["scheme"],
+            path,
+            self.scope["query_string"],
+            headers,
+            self.scope.get("root_path", ""),
+            self.scope["http_version"],
+            max_content_length=self.app.config["MAX_CONTENT_LENGTH"],
+            body_timeout=self.app.config["BODY_TIMEOUT"],
+            send_push_promise=partial(self._send_push_promise, send),
+            scope=self.scope,
+        )
 
     def _get_real_value(self, trusted: int, value: Optional[str]) -> Optional[str]:
         """Get the real value from a list header based on the configured
@@ -95,6 +93,3 @@ class ProxyFix:
             if not is_filename or value[:2] != "\\\\":
                 return value.replace("\\\\", "\\").replace('\\"', '"')
         return value
-
-
-#                host,             request.root_path,             subdomain,             request.scheme,             request.method,             request.path,             request.query_string.decode(),