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crypt: Prevent the user pointing crypt at itself - fixes #927

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This would hopefully have stopped the issues reported in #784 & #929
This commit is contained in:
Nick Craig-Wood 2016-12-19 14:09:59 +00:00
parent 4482e75f38
commit 473bdad00b
1 changed files with 4 additions and 0 deletions
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4
crypt/crypt.go
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@ -5,6 +5,7 @@ import (
"fmt" "fmt"
"io" "io"
"path" "path"
"strings"
"sync" "sync"
"github.com/ncw/rclone/fs" "github.com/ncw/rclone/fs"
@ -71,6 +72,9 @@ func NewFs(name, rpath string) (fs.Fs, error) {
return nil, errors.Wrap(err, "failed to make cipher") return nil, errors.Wrap(err, "failed to make cipher")
} }
remote := fs.ConfigFile.MustValue(name, "remote") remote := fs.ConfigFile.MustValue(name, "remote")
if strings.HasPrefix(remote, name+":") {
return nil, errors.New("can't point crypt remote at itself - check the value of the remote setting")
}
// Look for a file first // Look for a file first
remotePath := path.Join(remote, cipher.EncryptFileName(rpath)) remotePath := path.Join(remote, cipher.EncryptFileName(rpath))
wrappedFs, err := fs.NewFs(remotePath) wrappedFs, err := fs.NewFs(remotePath)