Pchp.Library.Streams.PhpStream.CheckAccess C# (CSharp) Method

PhpStream Class Documentation Show file Open project: iolevel/peachpie

CheckAccess() public static method

Performs all checks on a path passed to a PHP function.

This method performs a check similar to safe_mode.c: php_checkuid_ex() together with open_basedir check.

The filename may be one of the following: A relative path. The path is resolved regarding the include_path too if required and checking continues as in the next case. An absolute path. The file or directory is checked for existence and for access permissions¹ according to the given mode. ¹ Regarding the open_basedir configuration option. File access permissions are checked at the time of file manipulation (opening, copying etc.).

If the file can not be accessed /// and the is not set.

public static CheckAccess ( string filename, CheckAccessMode mode, CheckAccessOptions options ) : bool
filename	string	A resolved path. Must be an absolute path to a local file.
mode	CheckAccessMode	One of the .
options	CheckAccessOptions	true to suppress error messages.
return	bool

        public static bool CheckAccess(string filename, CheckAccessMode mode, CheckAccessOptions options)
        {
            Debug.Assert(Path.IsPathRooted(filename));
            string url = FileSystemUtils.StripPassword(filename);
            bool quiet = (options & CheckAccessOptions.Quiet) > 0;

            switch (mode)
            {
                case CheckAccessMode.FileMayExist:
                    break;

                case CheckAccessMode.FileExists:
                    if (!File.Exists(filename))
                    {
                        if (!quiet) PhpException.Throw(PhpError.Warning, ErrResources.stream_file_not_exists, url);
                        return false;
                    }
                    break;

                case CheckAccessMode.FileNotExists:
                    if (File.Exists(filename))
                    {
                        if (!quiet) PhpException.Throw(PhpError.Warning, ErrResources.stream_file_exists, url);
                        return false;
                    }
                    break;

                case CheckAccessMode.FileOrDirectory:
                    if ((!Directory.Exists(filename)) && (!File.Exists(filename)))
                    {
                        if (!quiet) PhpException.Throw(PhpError.Warning, ErrResources.stream_path_not_exists, url);
                        return false;
                    }
                    break;

                case CheckAccessMode.Directory:
                    if (!Directory.Exists(filename))
                    {
                        if (!quiet) PhpException.Throw(PhpError.Warning, ErrResources.stream_directory_not_exists, url);
                        return false;
                    }
                    break;

                default:
                    Debug.Assert(false);
                    return false;
            }

            return true;
        }

PhpStream

AddFilter

CheckAccess

CheckIncludePath

DropReadBuffer

EnqueueReadBuffer

FindEoln

Flush

FlushWriteBuffer

FreeManaged

FreeUnmanaged

GetNextDataLength