feat: global proxy protocol support

test/test_proxy_protocol/test_proxy-protocol-global-disabled.py

@@ -0,0 +1,58 @@
+import socket
+
+
+def test_proxy_protocol_global_disabled_X_Forwarded_For_is_generated(
+    docker_compose, nginxproxy
+):
+    r = nginxproxy.get("http://proxy-protocol-global-disabled.nginx-proxy.tld/headers")
+    assert r.status_code == 200
+    assert "X-Forwarded-For:" in r.text
+
+
+def test_proxy_protocol_global_disabled_X_Forwarded_For_is_passed_on(
+    docker_compose, nginxproxy
+):
+    r = nginxproxy.get(
+        "http://proxy-protocol-global-disabled.nginx-proxy.tld/headers",
+        headers={"X-Forwarded-For": "1.2.3.4"},
+    )
+    assert r.status_code == 200
+    assert "X-Forwarded-For: 1.2.3.4, " in r.text
+
+
+def test_proxy_protocol_global_disabled_X_Forwarded_Port_is_generated(
+    docker_compose, nginxproxy
+):
+    r = nginxproxy.get("http://proxy-protocol-global-disabled.nginx-proxy.tld/headers")
+    assert r.status_code == 200
+    assert "X-Forwarded-Port: 80\n" in r.text
+
+
+def test_proxy_protocol_global_disabled_X_Forwarded_Port_is_passed_on(
+    docker_compose, nginxproxy
+):
+    r = nginxproxy.get(
+        "http://proxy-protocol-global-disabled.nginx-proxy.tld/headers",
+        headers={"X-Forwarded-Port": "1234"},
+    )
+    assert r.status_code == 200
+    assert "X-Forwarded-Port: 1234\n" in r.text
+
+
+def test_proxy_protocol_global_disabled_proto_request_fails(docker_compose, nginxproxy):
+    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    client.connect((nginxproxy.get_ip(), 80))
+
+    # 1.2.3.4 is the client IP
+    # 4.3.2.1 is the proxy server IP
+    # 8080 is the client port
+    # 9090 is the proxy server port
+    client.send(f"PROXY TCP4 1.2.3.4 4.3.2.1 8080 9090\r\n".encode("utf-8"))
+    client.send(
+        "GET /headers HTTP/1.1\r\nHost: proxy-protocol-global-enabled.nginx-proxy.tld\r\n\r\n".encode(
+            "utf-8"
+        )
+    )
+
+    response = client.recv(4096).decode("utf-8")
+    assert "HTTP/1.1 400 Bad Request" in response