You've already forked agentic-coding-workflow
35 lines
960 B
Go
35 lines
960 B
Go
// Package httpx 内的 spa.go 提供 SPA 静态资源 + 404 fallback。
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// 命中文件直接 ServeFile；不存在但路径无后缀视为前端路由，回退 index.html；
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// /api/ 前缀始终返回 404（避免把 API 拼写错误掩盖成 HTML）。
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package httpx
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import (
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"errors"
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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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// NewSPAHandler 把 distFS 暴露成 SPA handler。
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func NewSPAHandler(distFS fs.FS) http.Handler {
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fileServer := http.FileServer(http.FS(distFS))
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if strings.HasPrefix(r.URL.Path, "/api/") {
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http.NotFound(w, r)
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return
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}
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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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if _, err := fs.Stat(distFS, path); err != nil {
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if errors.Is(err, fs.ErrNotExist) && !strings.Contains(path, ".") {
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r.URL.Path = "/index.html"
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fileServer.ServeHTTP(w, r)
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return
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}
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}
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fileServer.ServeHTTP(w, r)
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})
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}
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