From 920ae86def7a6c9c64fdac116f3c311310aff6e5 Mon Sep 17 00:00:00 2001
From: Dominik Csapak <d.csapak@proxmox.com>
Date: Tue, 21 Jan 2020 15:38:29 +0100
Subject: [PATCH] use new Uint8Array interface of xterm.js

which means we can drop our utf8-decoder

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 src/www/main.js |  4 ++--
 src/www/util.js | 51 -------------------------------------------------
 2 files changed, 2 insertions(+), 53 deletions(-)

diff --git a/src/www/main.js b/src/www/main.js
index 6d7ee69..49d382c 100644
--- a/src/www/main.js
+++ b/src/www/main.js
@@ -144,11 +144,11 @@ function createTerminal() {
 
 function runTerminal() {
     socket.onmessage = function(event) {
-	var answer = Utf8ArrayToStr(event.data);
+	var answer = new Uint8Array(event.data);
 	if (state === states.connected) {
 	    term.write(answer);
 	} else if(state === states.connecting) {
-	    if (answer.slice(0,2) === "OK") {
+	    if (answer[0] === 79 && answer[1] === 75) { // "OK"
 		updateState(states.connected);
 		term.write(answer.slice(2));
 	    } else {
diff --git a/src/www/util.js b/src/www/util.js
index fc6ef07..52cad21 100644
--- a/src/www/util.js
+++ b/src/www/util.js
@@ -69,57 +69,6 @@ function getQueryParameter(name) {
     return result;
 }
 
-var cur = 0;
-var left = 0;
-
-function Utf8ArrayToStr(arraybuffer) {
-    var array = new Uint8Array(arraybuffer),
-	i = 0,
-	len = array.byteLength,
-	out = "",
-	c;
-
-    while (i < len) {
-	c = array[i++];
-	if (!left && c < 0x80) {
-		out += String.fromCharCode(c);
-	} else if(!left) {
-	    switch (c >> 4) {
-		case 12: case 13:
-		    // 110x xxxx 10xx xxxx
-		    cur = (c & 0x1F) << 6;
-		    left = 1;
-		    break;
-		case 14:
-		    // 1110 xxxx 10xx xxxx 10xx xxxx
-		    cur = (c & 0x0F) << 12;
-		    left = 2;
-		    break;
-		case 15:
-		    // 1111 0xxx 10xx xxxx 10xx xxxx 10xx xxxx
-		    cur = (c & 0x07) << 18;
-		    left = 3;
-		    break;
-		default:
-		    cur = 0;
-		    out += '\ufffd';
-	    }
-	} else if (c >= 0x80 && c <= 0xBF) {
-	    cur = cur | ((c & 0x3F) << (--left * 6));
-	    if (!left) {
-		out += String.fromCharCode(cur);
-		cur = 0;
-	    }
-	} else {
-	    cur = 0;
-	    left = 0;
-	    out += '\ufffd';
-	}
-    }
-
-    return out;
-}
-
 function API2Request(reqOpts) {
     var me = this;
 
-- 
2.39.2