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anirudh.fi
1package knotserver
2
3import (
4 "net/http"
5 "os"
6 "path/filepath"
7
8 securejoin "github.com/cyphar/filepath-securejoin"
9 "github.com/go-chi/chi/v5"
10 "github.com/microcosm-cc/bluemonday"
11)
12
13func sanitize(content []byte) []byte {
14 return bluemonday.UGCPolicy().SanitizeBytes([]byte(content))
15}
16
17func didPath(r *http.Request) string {
18 did := chi.URLParam(r, "did")
19 name := chi.URLParam(r, "name")
20 path, _ := securejoin.SecureJoin(did, name)
21 filepath.Clean(path)
22 return path
23}
24
25func getDescription(path string) (desc string) {
26 db, err := os.ReadFile(filepath.Join(path, "description"))
27 if err == nil {
28 desc = string(db)
29 } else {
30 desc = ""
31 }
32 return
33}
34func setContentDisposition(w http.ResponseWriter, name string) {
35 h := "inline; filename=\"" + name + "\""
36 w.Header().Add("Content-Disposition", h)
37}
38
39func setGZipMIME(w http.ResponseWriter) {
40 setMIME(w, "application/gzip")
41}
42
43func setMIME(w http.ResponseWriter, mime string) {
44 w.Header().Add("Content-Type", mime)
45}