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https://github.com/versity/versitygw.git
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2c713c58f9
We had 0755 hard coded for newly created directories before. This adds a user option to configure what the default mode permissions should be for newly created directories. Fixes #878
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Copyright 2024 Versity Software
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// MkdirAll borrowed from stdlib to add ability to set ownership
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// as directories are created
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package backend
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import (
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"io/fs"
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"os"
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"github.com/versity/versitygw/s3err"
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)
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// MkdirAll is similar to os.MkdirAll but it will return
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// ErrObjectParentIsFile when appropriate
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// MkdirAll creates a directory named path,
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// along with any necessary parents, and returns nil,
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// or else returns an error.
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// The permission bits perm (before umask) are used for all
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// directories that MkdirAll creates.
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// Any newly created directory is set to provided uid/gid ownership.
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// If path is already a directory, MkdirAll does nothing
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// and returns nil.
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// Any directory created will be set to provided uid/gid ownership
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// if doChown is true.
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func MkdirAll(path string, uid, gid int, doChown bool, dirPerm fs.FileMode) error {
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// Fast path: if we can tell whether path is a directory or file, stop with success or error.
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dir, err := os.Stat(path)
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if err == nil {
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if dir.IsDir() {
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return nil
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}
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return s3err.GetAPIError(s3err.ErrObjectParentIsFile)
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}
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// Slow path: make sure parent exists and then call Mkdir for path.
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i := len(path)
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for i > 0 && os.IsPathSeparator(path[i-1]) { // Skip trailing path separator.
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i--
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}
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j := i
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for j > 0 && !os.IsPathSeparator(path[j-1]) { // Scan backward over element.
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j--
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}
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if j > 1 {
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// Create parent.
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err = MkdirAll(path[:j-1], uid, gid, doChown, dirPerm)
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if err != nil {
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return err
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}
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}
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// Parent now exists; invoke Mkdir and use its result.
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err = os.Mkdir(path, dirPerm)
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if err != nil {
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// Handle arguments like "foo/." by
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// double-checking that directory doesn't exist.
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dir, err1 := os.Lstat(path)
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if err1 == nil && dir.IsDir() {
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return nil
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}
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return err
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}
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if doChown {
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err = os.Chown(path, uid, gid)
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if err != nil {
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return err
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}
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}
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return nil
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}
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