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