perf(openresty): improve compression and proxy buffering (#42)

docs/changelog/index.md

@@ -10,6 +10,9 @@ sidebar: false
 
 ## [Unreleased]
 
+### ⚡️ 优化与改进
+- OpenResty 默认压缩 CSS、JavaScript、JSON、XML、RSS、Atom 和 SVG 等文本响应，并发送 `Vary: Accept-Encoding`；普通代理请求默认先缓冲请求体再转发，升级时旧值 `false` 会改为 `true`，流式上传场景可手动关闭。
+
 ### ✨ 新功能
 - 代理路由详情支持单独关闭 HTTP/2，默认仍启用；关闭后该路由生成的 HTTPS 配置不再启用 HTTP/2。
 

docs/reference/configuration.md

@@ -237,7 +237,7 @@ Server 的所有核心基础配置定义在 `config.yaml` 中，且均支持环
 | `openresty_proxy_read_timeout` | `int` | 源站收到请求后返回数据，Agent 最大的等待数据返回间隔时长（秒） | `60` |
 | `openresty_websocket_enabled` | `bool` | 是否在 HTTP 段中自动载入渲染支持 WebSocket 协议的全局变量及头信息 | `true` |
 | `openresty_http3_enabled` | `bool` | 是否在生成 nginx 监听描述中渲染支持 HTTP/3 QUIC 双栈监听能力 | `true` |
-| `openresty_proxy_request_buffering_enabled`| `bool` | 是否将客户端 Request Body 先在网关做完全部读取缓存再向源站递交 | `false` |
+| `openresty_proxy_request_buffering_enabled`| `bool` | 是否将客户端 Request Body 先在网关做完全部读取缓存再向源站递交；普通代理建议开启，流式上传或实时转发场景可关闭 | `true` |
 | `openresty_proxy_buffering_enabled` | `bool` | 是否允许网关暂存源站的大量 Response 数据待全部解析后再转发给用户 | `true` |
 | `openresty_proxy_buffers` | `string` | nginx 反代响应缓冲区的分配数量与单缓存大大小（如 `16 16k`） | `16 16k` |
 | `openresty_proxy_buffer_size` | `string` | 存放源站返回 Response Header 头部信息的专属缓冲区限制 | `8k` |

internal/apps/openflare/config_version/snapshot.go

@@ -549,7 +549,7 @@ func buildOpenRestyConfigSnapshot(ctx context.Context) openRestyConfigSnapshot {
 		ProxyReadTimeout:           getIntConfig(model.ConfigKeyOpenRestyProxyReadTimeout, defaultOpenRestyProxyTimeout),
 		WebsocketEnabled:           getBoolConfig(model.ConfigKeyOpenRestyWebsocketEnabled, true),
 		HTTP3Enabled:               getBoolConfig(model.ConfigKeyOpenRestyHTTP3Enabled, true),
-		ProxyRequestBuffering:      getBoolConfig(model.ConfigKeyOpenRestyProxyRequestBufferingEnabled, false),
+		ProxyRequestBuffering:      getBoolConfig(model.ConfigKeyOpenRestyProxyRequestBufferingEnabled, true),
 		ProxyBufferingEnabled:      getBoolConfig(model.ConfigKeyOpenRestyProxyBufferingEnabled, true),
 		ProxyBuffers:               getStringConfig(model.ConfigKeyOpenRestyProxyBuffers, "16 16k"),
 		ProxyBufferSize:            getStringConfig(model.ConfigKeyOpenRestyProxyBufferSize, "8k"),

internal/infra/persistence/migrator/goose/postgres/202610070002_enable_proxy_request_buffering_by_default.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+UPDATE w_system_configs
+SET value = 'true', updated_at = CURRENT_TIMESTAMP
+WHERE key = 'openresty_proxy_request_buffering_enabled' AND value = 'false';
+
+-- +goose Down
+-- Intentionally left unchanged: restoring the old value could overwrite a later user choice.

internal/infra/persistence/migrator/goose/sqlite/202610070002_enable_proxy_request_buffering_by_default.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+UPDATE w_system_configs
+SET value = 'true', updated_at = CURRENT_TIMESTAMP
+WHERE key = 'openresty_proxy_request_buffering_enabled' AND value = 'false';
+
+-- +goose Down
+-- Intentionally left unchanged: restoring the old value could overwrite a later user choice.

pkg/render/openresty/types.go

@@ -102,6 +102,8 @@ http {
     gzip {{OpenRestyGzip}};
     gzip_min_length {{OpenRestyGzipMinLength}};
     gzip_comp_level {{OpenRestyGzipCompLevel}};
+    gzip_vary on;
+    gzip_types text/plain text/css text/xml application/javascript application/json application/xml application/rss+xml application/atom+xml image/svg+xml;
 {{OpenRestyResolverDirective}}{{OpenRestyCacheBlock}}    include {{OpenRestyRouteConfigInclude}};
 }
 `