示例#1
0
func isFileWriteable(p gopath.GoPath) bool {
	if p.IsExists() {
		var closer, err = os.OpenFile(p.Path(), os.O_WRONLY, 0)
		if closer != nil {
			closer.Close()
		}

		return err == nil
	}

	return isDirWriteable(p.Dir())
}
示例#2
0
// getRelevantFileModeForPath returns the FileMode for the given file or, when
// the file does not exist, its containing directory.
func (a *accessControl) relevantFileModeForPath(p gopath.GoPath) os.FileMode {
	if a.hasErr() || p.HasErr() {
		return 0
	}
	var pStat = p.Stat()
	if !pStat.IsExists() {
		// HINT: Inspect permissions of containing directory
		pStat = p.Dir().Stat()
	}
	a.setErr(pStat.Err())
	return pStat.FileMode()
}
示例#3
0
文件: pathio.go 项目: fxnn/gone
// assertPathValidForWriteAccess sets the error flag when the path may not be
// opened for writing by this process.
func (i *pathIO) assertPathValidForWriteAccess(p gopath.GoPath) {
	if i.hasErr() {
		return
	}
	if p.HasErr() {
		i.setErr(p.Err())
		return
	}

	if p.IsExists() {
		if !p.IsRegular() || !isPathWriteable(p) {
			i.setErr(store.NewAccessDeniedError(fmt.Sprintf(
				"path '%s' with mode %s denotes no regular file or no writeable directory",
				p.Path(), p.FileMode())))
		}
	} else {
		var d = p.Dir()
		if !isPathWriteable(d) {
			i.setErr(store.NewAccessDeniedError(
				"parent directory of '" + p.Path() + "' is not writeable"))
		}
	}
}