From 718898c5a1cb599e5e3cf4995617a540b310dc44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs?= <heckyel@hyperbola.info>
Date: Thu, 13 Aug 2020 12:42:25 -0500
Subject: Actually remove stale filters

---
 js/assets.js     | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 js/background.js |  1 +
 js/start.js      |  1 +
 3 files changed, 52 insertions(+)

diff --git a/js/assets.js b/js/assets.js
index 484c4ef..84419d2 100644
--- a/js/assets.js
+++ b/js/assets.js
@@ -999,6 +999,56 @@
         }
     };
 
+    api.checkVersion = function () {
+        let cache;
+
+        let onSourceReady = function (registry) {
+            let source = JSON.parse(JSON.stringify(registry));
+            let version = ηMatrix.userSettings.assetVersion;
+
+            if (!version) {
+                ηMatrix.userSettings.assetVersion = 1;
+                version = 1;
+            }
+
+            if (!source["assets.json"].version
+                || version > source["assets.json"].version) {
+                for (let key in source) {
+                    switch (key) {
+                    case "hphosts":
+                    case "malware-0":
+                    case "malware-1":
+                        delete source[key];
+                        api.remove(key, function () {});
+                        break;
+                    default:
+                        break;
+                    }
+
+                    source["assets.json"].version = version;
+                }
+
+                let createRegistry = function () {
+                    api.fetchText
+                    (ηMatrix.assetsBootstrapLocation || 'assets/assets.json',
+                     function (details) {
+                         updateSourceRegistry(details.content, true);
+                     });
+                };
+
+                createRegistry();
+            }
+        };
+
+        let onCacheReady = function (registry) {
+            cache = JSON.parse(JSON.stringify(registry));
+
+            getSourceRegistry(onSourceReady);
+        };
+
+        getCacheRegistry(onCacheReady);
+    };
+
     return api;
 })();
 
diff --git a/js/background.js b/js/background.js
index 842900a..889decd 100644
--- a/js/background.js
+++ b/js/background.js
@@ -175,6 +175,7 @@ var ηMatrix = (function () {
             processReferer: false,
             disableUpdateIcon: false,
             resolveCname: false,
+            assetsVersion: 1,
         },
 
         rawSettingsDefault: rawSettingsDefault,
diff --git a/js/start.js b/js/start.js
index a830425..b0f3970 100644
--- a/js/start.js
+++ b/js/start.js
@@ -44,6 +44,7 @@
     let onAllDone = function () {
         ηm.webRequest.start();
 
+        ηm.assets.checkVersion();
         ηm.assets.addObserver(ηm.assetObserver.bind(ηm));
         ηm.scheduleAssetUpdater(ηm.userSettings.autoUpdate ? 7 * 60 * 1000 : 0);
 
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