2018-11-11 14:32:44 +01:00
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const ws = new WebSocket("ws://localhost:8888");
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2018-11-12 01:18:21 +01:00
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const ops = {
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NONE: 0,
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GETATTR: 1,
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READDIR: 2
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};
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const unix = {
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EPERM: 1,
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ENOENT: 2,
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ESRCH: 3,
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EINTR: 4,
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EIO: 5,
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ENXIO: 6,
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// Unix file types
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S_IFMT: 0170000, // type of file mask
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S_IFIFO: 010000, // named pipe (fifo)
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S_IFCHR: 020000, // character special
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S_IFDIR: 040000, // directory
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S_IFBLK: 060000, // block special
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S_IFREG: 0100000, // regular
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S_IFLNK: 0120000, // symbolic link
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S_IFSOCK: 0140000, // socket
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}
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2018-11-12 01:31:02 +01:00
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function readdir(path) {
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if (path === "/") {
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return ["tabs"];
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} else if (path === "/tabs") {
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return ["hello.txt"];
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}
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}
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function getattr(path) {
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const response = {};
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if (path === "/" || path === "/tabs") {
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response.st_mode = unix.S_IFDIR | 0755;
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response.st_nlink = 3;
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} else if (path === "/tabs/hello.txt") {
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response.st_mode = unix.S_IFREG | 0444;
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response.st_nlink = 1;
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response.st_size = 10; // FIXME
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} else {
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response.error = unix.ENOENT;
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}
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return response;
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}
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2018-11-11 14:32:44 +01:00
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ws.onmessage = function(event) {
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const req = JSON.parse(event.data);
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2018-11-12 01:18:21 +01:00
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console.log('req', Object.entries(ops).find(([op, opcode]) => opcode === req.op)[0], req);
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2018-11-11 14:32:44 +01:00
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2018-11-11 20:44:36 +01:00
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let response;
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2018-11-12 01:18:21 +01:00
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if (req.op === ops.READDIR) {
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response = {
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op: ops.READDIR,
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2018-11-12 01:31:02 +01:00
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entries: [".", "..", ...readdir(req.path)]
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2018-11-12 01:18:21 +01:00
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};
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2018-11-12 01:31:02 +01:00
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2018-11-12 01:18:21 +01:00
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} else if (req.op === ops.GETATTR) {
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2018-11-11 20:44:36 +01:00
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response = {
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2018-11-12 01:18:21 +01:00
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op: ops.GETATTR,
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st_mode: 0,
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st_nlink: 0,
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2018-11-12 01:31:02 +01:00
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st_size: 0,
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...getattr(req.path)
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2018-11-11 20:44:36 +01:00
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};
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2018-11-12 01:18:21 +01:00
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}
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2018-11-11 14:32:44 +01:00
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2018-11-12 01:18:21 +01:00
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console.log('response', Object.entries(ops).find(([op, opcode]) => opcode === response.op)[0], response);
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2018-11-11 14:32:44 +01:00
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ws.send(JSON.stringify(response));
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};
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