153 lines
4.2 KiB
HTML
153 lines
4.2 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8" />
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</head>
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<body>
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<div id="stdout"></div>
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</body>
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<script src="../dist/idbfs.min.js"></script>
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<script src="../lib/buffer.js"></script>
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<script>
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var LF_NORMAL = "0",
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LF_LINK = "1",
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LF_SYMLINK = "2",
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LF_CHR = "3",
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LF_BLK = "4",
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LF_DIR = "5",
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LF_FIFO = "6",
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LF_CONTIG = "7";
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function Archive(buffer) {
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this.files = [];
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this.offset = 0;
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this.offset = this.parseTarChunk(buffer, this.offset)
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}
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Archive.prototype = {
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parseTarHeader: function parseTarHeader(buffer) {
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var text = new Buffer(buffer).toString();
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var i = 0;
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var h = {};
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h.filename = text.substring(i, i+=100).split("\0", 1)[0];
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h.mode = text.substring(i, i+=8).split("\0", 1)[0];
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h.uid = text.substring(i, i+=8).split("\0", 1)[0];
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h.gid = text.substring(i, i+=8).split("\0", 1)[0];
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h.length = parseInt(text.substring(i, i+=12), 8);
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h.lastModified = text.substring(i, i+=12).split("\0", 1)[0];
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h.checkSum = text.substring(i, i+=8).split("\0", 1)[0];
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h.fileType = text.substring(i, i+=1).split("\0", 1)[0];
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h.linkName = text.substring(i, i+=100).split("\0", 1)[0];
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return h;
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},
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parseTarChunk: function parseTarChunk(buffer, offset) {
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while (buffer.length >= offset + 512) {
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var header = this.files.length == 0 ? null : this.files[this.files.length-1];
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if (header && header.data == null) {
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if (offset + header.length <= buffer.length) {
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header.data = buffer.subarray(offset, offset+header.length);
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offset += 512 * Math.ceil(header.length / 512);
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} else { // not loaded yet
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break;
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}
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} else {
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var header = this.parseTarHeader(buffer.subarray(offset, offset+512));
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if (header.length > 0 || header.filename != '') {
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this.files.push(header);
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offset += 512;
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header.offset = offset;
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} else { // empty header, stop processing
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offset = buffer.length;
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}
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}
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}
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return offset;
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}
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};
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var xhr = new XMLHttpRequest();
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xhr.open('GET', './archive.tar', true);
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xhr.responseType = 'arraybuffer';
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xhr.onload = function(e) {
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var buffer = new Uint8Array(this.response);
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var archive = new Archive(buffer);
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IDBFS.mount("default", "format", function(error, fs) {
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if(error) {
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return console.error(error);
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}
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function stat(path) {
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fs.stat(path, function(error, result) {
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if(error) {
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return console.error(error);
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}
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console.info("stat " + path, result);
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});
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}
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function ls(dir) {
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fs.open(dir, "", "R", function(error, fd) {
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contents = [];
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fd.readdir(contents, undefined, function(error, count, contents) {
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if(error) {
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return console.error(error);
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}
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console.info("ls " + dir, contents);
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fs.close(fd);
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});
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});
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}
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var i = 0;
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function createNextFile(error) {
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if(error) {
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return console.error(error);
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} else if(i >= archive.files.length) {
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stat("/");
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ls("/");
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stat("/archive");
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ls("/archive");
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stat("/archive/js");
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ls("/archive/js");
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stat("/archive/js/gl-matrix.js");
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stat("/archive/img");
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ls("/archive/img");
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stat("/archive/img/firefox_logo-only_RGB-300dpi.jpg");
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} else {
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var file = archive.files[i ++];
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if(LF_DIR == file.fileType) {
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fs.mkdir(file.filename, createNextFile);
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} else {
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fs.open(file.filename, "CREATE", "RW", function(error, fd) {
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if(error) {
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return console.error(error);
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}
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fd.write(file.data, function(error, bytes_written, buffer) {
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if(error) {
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return console.error(error);
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}
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fs.close(fd, createNextFile);
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});
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});
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}
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}
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}
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createNextFile();
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});
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};
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xhr.send(null);
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function unpack(archive) {
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}
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</script>
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</html>
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