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