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main.go
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/
main.go
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package main
import (
"html/template"
"io"
"log"
"net/http"
"os"
"path/filepath"
)
func main() {
// parse template
tpl, err := template.ParseFiles("form.gohtml")
if err != nil {
log.Fatalln(err)
}
// handler
http.HandleFunc("/", func(res http.ResponseWriter, req *http.Request) {
// receive form submission
if req.Method == "POST" {
src, _, err := req.FormFile("file")
if err != nil {
panic(err)
}
defer src.Close()
dst, err := os.Create(filepath.Join("./", "file.txt"))
if err != nil {
http.Error(res, err.Error(), 500)
return
}
defer dst.Close()
io.Copy(dst, src)
}
// execute template
err = tpl.Execute(res, nil)
if err != nil {
http.Error(res, err.Error(), 500)
log.Fatalln(err)
}
})
http.ListenAndServe(":9000", nil)
}