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truewhile c702a68cfb 优化
2026-09-03 16:53:12 +08:00

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package middleware
import (
"github.com/gin-contrib/gzip"
"github.com/gin-gonic/gin"
)
// gzipExcludedExtensions 已经是压缩格式(图片/字体/媒体/归档)的响应体,
// 再 gzip 只浪费 CPU 不省流量。
var gzipExcludedExtensions = []string{
".png", ".gif", ".jpeg", ".jpg", ".webp", ".avif", ".ico", ".svg",
".woff", ".woff2", ".ttf", ".otf",
".mp4", ".mkv", ".webm", ".ts", ".m4s", ".m3u8",
".mp3", ".flac", ".aac", ".ogg",
".zip", ".gz", ".xz", ".7z", ".rar",
}
// apiGzipExcludedPrefixes 大文件流式传输(Range 语义)与 WS/SSE 长连接
// 不参与 gzip:压缩会破坏 Range / 逐块推送语义。
var apiGzipExcludedPrefixes = []string{
"/api/stream/",
"/api/hls/",
"/api/img",
"/api/subtitles/",
"/api/strm/play/",
"/api/ws",
"/api/events",
}
// GzipAPI 压缩 /api 下的 JSON 响应(媒体列表动辄数 MB,压缩率 85%+)。
// gin-contrib/gzip 的路径排除是前缀匹配,且会自动校验 Accept-Encoding
// 与 Connection: Upgrade(WebSocket 安全)。
func GzipAPI() gin.HandlerFunc {
return gzip.Gzip(
gzip.DefaultCompression,
gzip.WithExcludedExtensions(gzipExcludedExtensions),
gzip.WithExcludedPaths(apiGzipExcludedPrefixes),
)
}
// GzipStatic 压缩 SPA 静态资源(JS/CSS/HTML 是构建产物的大头)。
func GzipStatic() gin.HandlerFunc {
return gzip.Gzip(
gzip.DefaultCompression,
gzip.WithExcludedExtensions(gzipExcludedExtensions),
)
}