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https://github.com/minio/minio.git
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127 lines
3.6 KiB
Go
127 lines
3.6 KiB
Go
// +build linux darwin dragonfly freebsd netbsd openbsd
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/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"io/ioutil"
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"os"
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"path"
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"syscall"
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"testing"
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)
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// Based on `man getumask` a vaporware GNU extension to glibc.
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// returns file mode creation mask.
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func getUmask() int {
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mask := syscall.Umask(0)
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syscall.Umask(mask)
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return mask
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}
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// Tests if the directory and file creations happen with proper umask.
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func TestIsValidUmaskVol(t *testing.T) {
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tmpPath, err := ioutil.TempDir(os.TempDir(), "minio-")
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if err != nil {
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t.Fatalf("Initializing temporary directory failed with %s.", err)
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}
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testCases := []struct {
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volName string
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expectedUmask int
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}{
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{"is-this-valid", getUmask()},
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}
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testCase := testCases[0]
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// Initialize a new posix layer.
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disk, err := newPosix(tmpPath)
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if err != nil {
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t.Fatalf("Initializing posix failed with %s.", err)
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}
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// Attempt to create a volume to verify the permissions later.
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// MakeVol creates 0777.
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if err = disk.MakeVol(testCase.volName); err != nil {
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t.Fatalf("Creating a volume failed with %s expected to pass.", err)
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}
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defer removeAll(tmpPath)
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// Stat to get permissions bits.
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st, err := os.Stat(path.Join(tmpPath, testCase.volName))
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if err != nil {
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t.Fatalf("Stat failed with %s expected to pass.", err)
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}
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// Get umask of the bits stored.
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currentUmask := 0777 - uint32(st.Mode().Perm())
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// Verify if umask is correct.
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if int(currentUmask) != testCase.expectedUmask {
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t.Fatalf("Umask check failed expected %d, got %d", testCase.expectedUmask, currentUmask)
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}
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}
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// Tests if the file creations happen with proper umask.
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func TestIsValidUmaskFile(t *testing.T) {
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tmpPath, err := ioutil.TempDir(os.TempDir(), "minio-")
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if err != nil {
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t.Fatalf("Initializing temporary directory failed with %s.", err)
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}
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testCases := []struct {
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volName string
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expectedUmask int
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}{
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{"is-this-valid", getUmask()},
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}
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testCase := testCases[0]
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// Initialize a new posix layer.
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disk, err := newPosix(tmpPath)
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if err != nil {
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t.Fatalf("Initializing posix failed with %s.", err)
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}
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// Attempt to create a volume to verify the permissions later.
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// MakeVol creates directory with 0777 perms.
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if err = disk.MakeVol(testCase.volName); err != nil {
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t.Fatalf("Creating a volume failed with %s expected to pass.", err)
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}
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defer removeAll(tmpPath)
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// Attempt to create a file to verify the permissions later.
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// AppendFile creates file with 0666 perms.
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if err = disk.AppendFile(testCase.volName, "hello-world.txt", []byte("Hello World")); err != nil {
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t.Fatalf("Create a file `test` failed with %s expected to pass.", err)
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}
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// StatFile - stat the file.
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fi, err := disk.StatFile(testCase.volName, "hello-world.txt")
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if err != nil {
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t.Fatalf("Stat failed with %s expected to pass.", err)
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}
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// Get umask of the bits stored.
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currentUmask := 0666 - uint32(fi.Mode.Perm())
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// Verify if umask is correct.
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if int(currentUmask) != testCase.expectedUmask {
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t.Fatalf("Umask check failed expected %d, got %d", testCase.expectedUmask, currentUmask)
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}
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}
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