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Normalize upload file name (#606)

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* Generate secure token using crypto rand

* Normalize names of uploaded files

* revert token.go accidentally added to commit

* better input filename normalization using transfrom chain

* remove unused line

---------

Co-authored-by: Alexey Kostin <a.kostin@corp.mail.ru>
Co-authored-by: Andrea Spacca <andrea.spacca@gmail.com>
This commit is contained in:
Alexey Kostin 2024-03-20 03:02:57 +03:00 committed by GitHub
parent bedbc8162d
commit 1eecc22fb3
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GPG key ID: B5690EEEBB952194
3 changed files with 26 additions and 2 deletions
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3
go.mod
View file

@ -16,6 +16,7 @@ require (
github.com/dutchcoders/go-virustotal v0.0.0-20140923143438-24cc8e6fa329
github.com/dutchcoders/transfer.sh-web v0.0.0-20221119114740-ca3a2621d2a6
github.com/elazarl/go-bindata-assetfs v1.0.1
github.com/emicklei/go-restful v2.16.0+incompatible
github.com/fatih/color v1.14.1
github.com/golang/gddo v0.0.0-20210115222349-20d68f94ee1f
github.com/gorilla/handlers v1.5.1
@ -29,6 +30,7 @@ require (
golang.org/x/crypto v0.17.0
golang.org/x/net v0.17.0
golang.org/x/oauth2 v0.7.0
golang.org/x/text v0.14.0
google.golang.org/api v0.114.0
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
storj.io/common v0.0.0-20230301105927-7f966760c100
@ -86,7 +88,6 @@ require (
go.opencensus.io v0.24.0 // indirect
golang.org/x/sync v0.1.0 // indirect
golang.org/x/sys v0.15.0 // indirect
golang.org/x/text v0.14.0 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
google.golang.org/grpc v1.56.3 // indirect

2
go.sum
View file

@ -85,6 +85,8 @@ github.com/dutchcoders/transfer.sh-web v0.0.0-20221119114740-ca3a2621d2a6 h1:7uT
github.com/dutchcoders/transfer.sh-web v0.0.0-20221119114740-ca3a2621d2a6/go.mod h1:F6Q37CxDh2MHr5KXkcZmNB3tdkK7v+bgE+OpBY+9ilI=
github.com/elazarl/go-bindata-assetfs v1.0.1 h1:m0kkaHRKEu7tUIUFVwhGGGYClXvyl4RE03qmvRTNfbw=
github.com/elazarl/go-bindata-assetfs v1.0.1/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
github.com/emicklei/go-restful v2.16.0+incompatible h1:rgqiKNjTnFQA6kkhFe16D8epTksy9HQ1MyrbDXSdYhM=
github.com/emicklei/go-restful v2.16.0+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=

23
server/handlers.go
View file

@ -51,6 +51,7 @@ import (
"sync"
textTemplate "text/template"
"time"
"unicode"
"github.com/ProtonMail/go-crypto/openpgp"
"github.com/ProtonMail/go-crypto/openpgp/armor"
@ -66,6 +67,9 @@ import (
blackfriday "github.com/russross/blackfriday/v2"
qrcode "github.com/skip2/go-qrcode"
"golang.org/x/net/idna"
"golang.org/x/text/runes"
"golang.org/x/text/transform"
"golang.org/x/text/unicode/norm"
)
const getPathPart = "get"
@ -418,7 +422,24 @@ func (s *Server) notFoundHandler(w http.ResponseWriter, _ *http.Request) {
}
func sanitize(fileName string) string {
return path.Base(fileName)
t := transform.Chain(
norm.NFD,
runes.Remove(runes.In(unicode.Cc)),
runes.Remove(runes.In(unicode.Cf)),
runes.Remove(runes.In(unicode.Co)),
runes.Remove(runes.In(unicode.Cs)),
runes.Remove(runes.In(unicode.Other)),
runes.Remove(runes.In(unicode.Zl)),
runes.Remove(runes.In(unicode.Zp)),
norm.NFC)
newName, _, err := transform.String(t, fileName)
if err != nil {
return path.Base(fileName)
}
if len(newName) == 0 {
newName = "_"
}
return path.Base(newName)
}
func (s *Server) postHandler(w http.ResponseWriter, r *http.Request) {