Pithos_GSS » Pithos Firefox extension

        aFile.initWithPath( filename );

        aFile.createUnique( Components.interfaces.nsIFile.NORMAL_FILE_TYPE, 600);

        var stream = Components.classes["@mozilla.org/network/safe-file-output-stream;1"].createInstance(Components.interfaces.nsIFileOutputStream);

        stream.init(aFile, 0x04 | 0x08 | 0x20, 0600, 0); // write, create, truncate

        if (!url || !url.schemeIs("file")) throw "Expected a file URL.";

        var afile = url.QueryInterface(Components.interfaces.nsIFileURL).file;

        var istream = Components.classes["@mozilla.org/network/file-input-stream;1"].createInstance(Components.interfaces.nsIFileInputStream);

        istream.init(afile, -1, -1, false);

        var bstream = Components.classes["@mozilla.org/binaryinputstream;1"].createInstance(Components.interfaces.nsIBinaryInputStream);

        bstream.setInputStream(istream);