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Commilitia Drop：自托管的跨设备剪贴板同步与点对点文件传输。 - 后端 Go（chi / SQLite WAL / SSE Hub / WebRTC signaling + 状态机 / Relay ring buffer），编译进单个 distroless 镜像（前端 go:embed）。 - 前端 React + TanStack Router + Zustand，自实现 SSE + WebRTC P2P，NAT 受阻时回退服务端中继；聚珍（Juzhen）CJK 综合排版。 - 桌面端 Wails v2（macOS / Windows），瘦客户端复用 web。 - 鉴权 OIDC PKCE（自建 Casdoor 等），refresh_token 信封加密存系统密钥库；iOS Shortcut 用 HS256 scoped token。 架构文档与变更记录见 docs 分支（PROJECT_BRIEF / FRONTEND_DESIGN / CHANGELOG）。 本次为公开发布初始提交：完整开发历史（含部署细节）留存于私有归档，公开仓库自此干净起步。
59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
package webui
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import (
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"embed"
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"io/fs"
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"net/http"
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"strings"
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)
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//go:embed all:dist
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var distFS embed.FS
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// Handler returns an http.Handler that serves the embedded frontend bundle
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// (web/dist copied into ./dist by the Dockerfile). Unmatched paths fall back
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// to /index.html so TanStack Router's client-side routes (/login, /setup,
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// /oauth/callback, …) work on hard-refresh.
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//
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// In local dev the embed FS is empty (only .gitkeep), so this returns a 404
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// for everything; the frontend is served by `vite dev` on :5173 instead.
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func Handler() http.Handler {
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sub, err := fs.Sub(distFS, "dist")
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if err != nil {
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// Should be unreachable; the embed dir always exists.
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panic(err)
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}
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fileServer := http.FileServer(http.FS(sub))
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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path := strings.TrimPrefix(r.URL.Path, "/")
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if path == "" {
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path = "index.html"
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}
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// Probe the file. If absent, rewrite to "/" so FileServer serves the
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// SPA index.html.
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served := path
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f, err := sub.Open(path)
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if err != nil {
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r.URL.Path = "/"
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served = "index.html"
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} else {
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_ = f.Close()
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}
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// 缓存策略：embed.FS 无 modtime → 默认不带任何缓存头，浏览器每次都重取
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// （表现为登录跳转回来后 logo 等图片闪烁重载）。按资源类型显式分级：
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// - /assets/* 是 Vite 带内容哈希的 bundle → 永久不可变缓存
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// - index.html（含 SPA 回退）必须每次校验，才能在新部署后拉到新哈希
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// - 其余静态资源（logo / favicon / manifest）极少变 → 一周缓存，
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// 使 logo 仅首访下载一次、后续导航与跨页直接命中缓存、不再重载
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switch {
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case strings.HasPrefix(served, "assets/"):
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w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
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case served == "index.html":
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w.Header().Set("Cache-Control", "no-cache")
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default:
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w.Header().Set("Cache-Control", "public, max-age=604800")
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}
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fileServer.ServeHTTP(w, r)
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})
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}
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