110 lines
2.2 KiB
Go
110 lines
2.2 KiB
Go
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package main
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import (
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"archive/tar"
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"flag"
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"fmt"
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"io"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"time"
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"mcquay.me/trash"
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)
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func init() {
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log.SetFlags(log.Lshortfile)
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}
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type fake struct {
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name string
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size int64
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}
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func (f fake) Name() string {
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return f.name
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}
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func (f fake) Size() int64 {
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return f.size
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}
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func (f fake) Mode() os.FileMode {
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return 0644
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}
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func (f fake) ModTime() time.Time {
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return time.Now()
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}
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func (f fake) IsDir() bool {
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return false
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}
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func (f fake) Sys() interface{} {
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return nil
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}
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func tarball(w http.ResponseWriter, req *http.Request) {
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if err := req.ParseForm(); err != nil {
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http.Error(w, fmt.Sprintf("error parsing form: %v", err), http.StatusBadRequest)
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return
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}
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size, ok := req.Form["size"]
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if !ok {
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http.Error(w, "must provide size parameter", http.StatusBadRequest)
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return
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}
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if len(size) != 1 {
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http.Error(w, fmt.Sprintf("only specify one size (%d specified)", len(size)), http.StatusBadRequest)
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return
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}
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sz, err := strconv.ParseFloat(size[0], 64)
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if err != nil {
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http.Error(w, fmt.Sprintf("error parsing size: %v", err), http.StatusBadRequest)
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return
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}
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sz = sz * 1024 * 1024 * 1024
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_, name := filepath.Split(req.URL.Path)
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if name == "" {
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name = "file.tar"
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}
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w.Header().Set("Content-Disposition", fmt.Sprintf("inline; filename=%q", name))
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w.Header().Set("content-type", "application/x-tar")
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lr := io.LimitReader(trash.Reader, int64(sz))
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t := tar.NewWriter(w)
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hdr, err := tar.FileInfoHeader(fake{"foo", int64(sz)}, "")
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if err != nil {
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http.Error(w, fmt.Sprintf("error creating tar header: %v", err), http.StatusBadRequest)
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return
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}
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hdr.Name = "trash.dat"
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if err := t.WriteHeader(hdr); err != nil {
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http.Error(w, fmt.Sprintf("error writing tar header: %v", err), http.StatusBadRequest)
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return
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}
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if _, err := io.Copy(t, lr); err != nil {
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log.Printf("problem writing tar to http body: %v", err)
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return
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}
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if err := t.Close(); err != nil {
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log.Printf("problem closing tar: %v", err)
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return
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}
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}
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var port = flag.Int64("-port", 9292, "port")
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func main() {
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flag.Parse()
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http.HandleFunc("/", tarball)
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if err := http.ListenAndServe(fmt.Sprintf(":%d", *port), nil); err != nil {
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fmt.Fprintf(os.Stderr, "%v", err)
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os.Exit(1)
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}
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}
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