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update: compression system: make asynchronous

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zefie
2021-08-06 16:20:44 -04:00
parent ad16a04c55
commit 3da637dfb0
2 changed files with 44 additions and 17 deletions
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23
zefie_wtvp_minisrv/app.js
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@@ -463,6 +463,7 @@ async function sendToClient(socket, headers_obj, data, compress_data = false) {
clen = data.byteLength;
}
// If wtv-lzpf is in the header then force compression
if (headers_obj["wtv-lzpf"]) {
compress_data = true;
@@ -483,14 +484,28 @@ async function sendToClient(socket, headers_obj, data, compress_data = false) {
}
// compress if needed
if (compress_data && clen > 0) {
if (compress_data && clen > 0 && !headers_obj['minisrv-already-compressed']) {
if (zdebug) console.log(" # Uncompressed data length:", clen);
headers_obj["wtv-lzpf"] = 0;
var wtvcomp = new WTVLzpf();
var uncomp_data = data;
data = wtvcomp.Compress(uncomp_data);
uncomp_data, wtvcomp = null;
var compressed_data = new Buffer.alloc(clen);
wtvcomp.on('data', (data, length, offset, complete) => {
data.copy(compressed_data, offset, 0, length);
if (complete !== false) {
data = new Buffer.alloc(complete);
compressed_data.copy(data, 0, 0, compressed_data.byteLength);
compressed_data, wtvcomp = null;
headers_obj['minisrv-already-compressed'] = true;
sendToClient(socket, headers_obj, data);
}
});
wtvcomp.Compress(data);
return;
}
if (headers_obj['minisrv-already-compressed']) delete headers_obj['minisrv-already-compressed'];
// encrypt if needed
if (socket_sessions[socket.id].secure == true) {
headers_obj["wtv-encrypted"] = 'true';