Example #1
0
func ensureGPGHomeDirectory() (string, error) {
	real, err := osutil.RealUser()
	if err != nil {
		return "", err
	}

	uid, err := strconv.Atoi(real.Uid)
	if err != nil {
		return "", err
	}

	gid, err := strconv.Atoi(real.Gid)
	if err != nil {
		return "", err
	}

	homedir := os.Getenv("SNAP_GNUPG_HOME")
	if homedir == "" {
		homedir = filepath.Join(real.HomeDir, ".snap", "gnupg")
	}

	if err := osutil.MkdirAllChown(homedir, 0700, uid, gid); err != nil {
		return "", err
	}
	return homedir, nil
}
Example #2
0
// writeAuthData saves authentication details for later reuse through ReadAuthData
func writeAuthData(user User) error {
	real, err := osutil.RealUser()
	if err != nil {
		return err
	}

	uid, err := strconv.Atoi(real.Uid)
	if err != nil {
		return err
	}

	gid, err := strconv.Atoi(real.Gid)
	if err != nil {
		return err
	}

	targetFile := storeAuthDataFilename(real.HomeDir)

	if err := osutil.MkdirAllChown(filepath.Dir(targetFile), 0700, uid, gid); err != nil {
		return err
	}

	outStr, err := json.Marshal(user)
	if err != nil {
		return nil
	}

	return osutil.AtomicWriteFileChown(targetFile, []byte(outStr), 0600, 0, uid, gid)
}
Example #3
0
func (s *createUserSuite) TestRealUser(c *check.C) {
	oldUser := os.Getenv("SUDO_USER")
	defer func() { os.Setenv("SUDO_USER", oldUser) }()

	for _, t := range []struct {
		SudoUsername    string
		CurrentUsername string
		CurrentUid      int
	}{
		// simulate regular "root", no SUDO_USER set
		{"", os.Getenv("USER"), 0},
		// simulate a normal sudo invocation
		{"guy", "guy", 0},
		// simulate running "sudo -u some-user -i" as root
		// (LP: #1638656)
		{"root", os.Getenv("USER"), 1000},
	} {
		restore := osutil.MockUserCurrent(func() (*user.User, error) {
			return &user.User{
				Username: t.CurrentUsername,
				Uid:      strconv.Itoa(t.CurrentUid),
			}, nil
		})
		defer restore()

		os.Setenv("SUDO_USER", t.SudoUsername)
		cur, err := osutil.RealUser()
		c.Assert(err, check.IsNil)
		c.Check(cur.Username, check.Equals, t.CurrentUsername)
	}
}
Example #4
0
func storeAuthDataFilename(homeDir string) string {
	if fn := os.Getenv(authFileEnvKey); fn != "" {
		return fn
	}

	if homeDir == "" {
		real, err := osutil.RealUser()
		if err != nil {
			panic(err)
		}
		homeDir = real.HomeDir
	}

	return filepath.Join(homeDir, ".snap", "auth.json")
}