From aac361686fb8f2d79cedaa6ed5c1eb524a7fb2d1 Mon Sep 17 00:00:00 2001
From: Hengqi Chen <hengqi.chen@gmail.com>
Date: Tue, 16 Jun 2026 14:42:23 +0800
Subject: [PATCH] CubeProxy: Disable buffering for PTY streams

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
---
 CubeProxy/nginx.conf | 68 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/CubeProxy/nginx.conf b/CubeProxy/nginx.conf
index 45963a40..e8d842fb 100644
--- a/CubeProxy/nginx.conf
+++ b/CubeProxy/nginx.conf
@@ -133,6 +133,40 @@ http {
             log_by_lua_file lua/log_phase.lua;
         }
 
+        # Streaming gRPC SendInput: disable response buffering so each chunk
+        # from upstream is forwarded to the client immediately.
+        location = /process.Process/SendInput {
+            include /usr/local/openresty/nginx/conf/global/global.conf;
+            set $cube_retcode "310200";
+            set $garyscale_test "none";
+            set $backend_ip "";
+            set $backend_port "";
+            set $access_time "";
+            set $cache_free_space "";
+            set $host_proxy_port 8081;
+
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+
+            proxy_send_timeout 7206s;
+            proxy_read_timeout 7206s;
+            proxy_connect_timeout 3s;
+            proxy_set_header Host $http_host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+            proxy_buffering off;
+
+            rewrite_by_lua_file lua/rewrite_phase.lua;
+
+            proxy_pass http://backend;
+
+            header_filter_by_lua_file lua/header_filter_phase.lua;
+
+            log_by_lua_file lua/log_phase.lua;
+        }
+
         location / {
             include /usr/local/openresty/nginx/conf/global/global.conf;
             set $cube_retcode "310200";
@@ -213,6 +247,40 @@ http {
             log_by_lua_file lua/log_phase.lua;
         }
 
+        # Streaming gRPC SendInput: disable response buffering so each chunk
+        # from upstream is forwarded to the client immediately.
+        location = /process.Process/SendInput {
+            include /usr/local/openresty/nginx/conf/global/global.conf;
+            set $cube_retcode "310200";
+            set $garyscale_test "none";
+            set $backend_ip "";
+            set $backend_port "";
+            set $access_time "";
+            set $cache_free_space "";
+            set $host_proxy_port 8080;
+
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+
+            proxy_send_timeout 7206s;
+            proxy_read_timeout 7206s;
+            proxy_connect_timeout 3s;
+            proxy_set_header Host $http_host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+            proxy_buffering off;
+
+            rewrite_by_lua_file lua/rewrite_phase.lua;
+
+            proxy_pass http://backend;
+
+            header_filter_by_lua_file lua/header_filter_phase.lua;
+
+            log_by_lua_file lua/log_phase.lua;
+        }
+
         location / {
             include /usr/local/openresty/nginx/conf/global/global.conf;
             set $cube_retcode "310200";