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add hide policy to pattern filters

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Disallowed files/dirs can be completly hidden. This may cause performance
issues for large directories

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
This commit is contained in:
Nicola Murino
2022-01-15 17:16:49 +01:00
parent 9b6b9cca3d
commit c3831de94e
20 changed files with 358 additions and 139 deletions
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10
ftpd/handler.go
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@@ -83,7 +83,7 @@ func (c *Connection) Create(name string) (afero.File, error) {
func (c *Connection) Mkdir(name string, perm os.FileMode) error {
c.UpdateLastActivity()
return c.CreateDir(name)
return c.CreateDir(name, true)
}
// MkdirAll is not implemented, we don't need it
@@ -145,7 +145,7 @@ func (c *Connection) Stat(name string) (os.FileInfo, error) {
return nil, c.GetPermissionDeniedError()
}
fi, err := c.DoStat(name, 0)
fi, err := c.DoStat(name, 0, true)
if err != nil {
return nil, err
}
@@ -319,9 +319,9 @@ func (c *Connection) downloadFile(fs vfs.Fs, fsPath, ftpPath string, offset int6
return nil, c.GetPermissionDeniedError()
}
if !c.User.IsFileAllowed(ftpPath) {
if ok, policy := c.User.IsFileAllowed(ftpPath); !ok {
c.Log(logger.LevelWarn, "reading file %#v is not allowed", ftpPath)
return nil, c.GetPermissionDeniedError()
return nil, c.GetErrorForDeniedFile(policy)
}
if err := common.ExecutePreAction(c.BaseConnection, common.OperationPreDownload, fsPath, ftpPath, 0, 0); err != nil {
@@ -344,7 +344,7 @@ func (c *Connection) downloadFile(fs vfs.Fs, fsPath, ftpPath string, offset int6
}
func (c *Connection) uploadFile(fs vfs.Fs, fsPath, ftpPath string, flags int) (ftpserver.FileTransfer, error) {
if !c.User.IsFileAllowed(ftpPath) {
if ok, _ := c.User.IsFileAllowed(ftpPath); !ok {
c.Log(logger.LevelWarn, "writing file %#v is not allowed", ftpPath)
return nil, ftpserver.ErrFileNameNotAllowed
}