gowebbuild/npmproxy/internalProxy.go

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2024-11-06 10:43:05 +01:00
package npmproxy
import (
"context"
"encoding/json"
"fmt"
"net/http"
"path/filepath"
"time"
"github.com/trading-peter/gowebbuild/fsutils"
)
func (p *Proxy) internalHTTPServer(ctx context.Context) {
mux := http.NewServeMux()
srv := &http.Server{
Addr: p.internalProxyHost,
Handler: mux,
}
go func() {
<-ctx.Done()
shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if err := srv.Shutdown(shutdownCtx); err != nil {
fmt.Printf("Failed to shutdown internal server for npm proxy: %v\n", err)
}
}()
mux.HandleFunc("GET /{pkg}", func(w http.ResponseWriter, r *http.Request) {
pkgName := r.PathValue("pkg")
override, ok := p.matchingOverride(pkgName)
if !ok {
http.NotFound(w, r)
return
}
pkg, err := p.findPackageSource(override, pkgName)
if err != nil {
serveReverseProxy(override.Upstream, w, r)
return
}
json.NewEncoder(w).Encode(pkg)
})
mux.HandleFunc("GET /files/{file}", func(w http.ResponseWriter, r *http.Request) {
fileName := r.PathValue("file")
filePath := filepath.Join(p.pkgCachePath, fileName)
if !fsutils.IsFile(filePath) {
http.NotFound(w, r)
return
}
http.ServeFile(w, r, filePath)
})
if err := srv.ListenAndServe(); err != nil {
if err != http.ErrServerClosed {
panic(err)
}
}
}