From a319320152b5a6e9fcf95867b9030e101497857a Mon Sep 17 00:00:00 2001
From: Devaev Maxim <mdevaev@gmail.com>
Date: Wed, 7 Nov 2018 05:28:10 +0300
Subject: using key cookie to determine client_id

---
 web/js/stream.js | 12 ++++++++----
 web/js/tools.js  |  9 +++++++++
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/web/js/stream.js b/web/js/stream.js
index f48dabff..041176c3 100644
--- a/web/js/stream.js
+++ b/web/js/stream.js
@@ -6,6 +6,7 @@ function Stream() {
 	var __prev_state = false;
 	var __resolution = {width: 640, height: 480};
 	var __size_factor = 1;
+	var __key = tools.makeId();
 	var __client_id = "";
 	var __fps = -1;
 
@@ -60,6 +61,8 @@ function Stream() {
 						$("stream-screenshot-button").disabled = true;
 						__setStreamerControlsDisabled(true);
 						__updateStreamHeader(false);
+						__key = tools.makeId();
+						__client_id = "";
 						__fps = -1;
 						__prev_state = false;
 					}
@@ -90,9 +93,10 @@ function Stream() {
 						}
 					}
 
-					var client_id = tools.getCookie("stream_client_id");
-					if (client_id) {
-						__client_id = client_id;
+					var stream_client = tools.getCookie("stream_client");
+					if (!__client_id && stream_client && stream_client.startsWith(__key + "/")) {
+						tools.info("Stream: found acceptable stream_client cookie:", stream_client);
+						__client_id = stream_client.slice(stream_client.indexOf("/") + 1);
 					}
 
 					if (response.stream.clients_stat.hasOwnProperty(__client_id)) {
@@ -104,7 +108,7 @@ function Stream() {
 					__updateStreamHeader(true);
 
 					if (!__prev_state) {
-						var path = "/streamer/stream?t=" + new Date().getTime();
+						var path = "/streamer/stream?key=" + __key;
 						if (tools.browser.is_chrome || tools.browser.is_blink) {
 							// uStreamer fix for Blink https://bugs.chromium.org/p/chromium/issues/detail?id=527446
 							tools.info("Stream: using advance_headers=1 to fix Blink MJPG bugs");
diff --git a/web/js/tools.js b/web/js/tools.js
index 22ef0a28..bb8310be 100644
--- a/web/js/tools.js
+++ b/web/js/tools.js
@@ -10,6 +10,15 @@ var tools = new function() {
 		return http;
 	};
 
+	this.makeId = function() {
+		var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+		var id = "";
+		for (var count = 0; count < 16; ++count) {
+			id += chars.charAt(Math.floor(Math.random() * chars.length));
+		}
+		return id;
+	};
+
 	this.getCookie = function(name) {
 		var matches = document.cookie.match(new RegExp(
 			"(?:^|; )" + name.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g, "\\$1") + "=([^;]*)" // eslint-disable-line no-useless-escape
-- 
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