53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package admin
|
|
|
|
import (
|
|
"embed"
|
|
"io/fs"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
//go:embed all:dist
|
|
var distFS embed.FS
|
|
|
|
// Register 把内嵌的后台 SPA 挂到根路径，保留 /api 给业务接口。
|
|
func Register(r *gin.Engine) {
|
|
sub, err := fs.Sub(distFS, "dist")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
fileServer := http.FileServer(http.FS(sub))
|
|
|
|
handler := func(c *gin.Context) {
|
|
reqPath := strings.TrimPrefix(c.Request.URL.Path, "/")
|
|
|
|
// 若请求的是真实存在的静态资源，直出；否则回退 index.html（前端路由）
|
|
if reqPath != "" {
|
|
if f, err := sub.Open(reqPath); err == nil {
|
|
_ = f.Close()
|
|
c.Request.URL.Path = "/" + reqPath
|
|
fileServer.ServeHTTP(c.Writer, c.Request)
|
|
return
|
|
}
|
|
}
|
|
// SPA fallback
|
|
data, err := fs.ReadFile(sub, "index.html")
|
|
if err != nil {
|
|
c.String(http.StatusInternalServerError, "admin dist missing")
|
|
return
|
|
}
|
|
c.Data(http.StatusOK, "text/html; charset=utf-8", data)
|
|
}
|
|
|
|
r.GET("/", handler)
|
|
r.NoRoute(func(c *gin.Context) {
|
|
if c.Request.Method != http.MethodGet || strings.HasPrefix(c.Request.URL.Path, "/api/") || c.Request.URL.Path == "/api" || strings.HasPrefix(c.Request.URL.Path, "/assets/") {
|
|
c.Status(http.StatusNotFound)
|
|
return
|
|
}
|
|
handler(c)
|
|
})
|
|
}
|