fix #995, #945; other minor fixes; opportunistic code review

src/js/assets.js

@@ -101,7 +101,11 @@ api.fetchText = function(url, onLoad, onError) {
 
     var onErrorReceived = function() {
         this.onload = this.onerror = this.ontimeout = null;
-        µMatrix.logger.writeOne('', 'error', errorCantConnectTo.replace('{{msg}}', actualUrl));
+        µMatrix.logger.writeOne(
+            '',
+            'error',
+            errorCantConnectTo.replace('{{url}}', actualUrl)
+        );
         onError.call(null, { url: url, content: '' });
     };
 

src/js/hosts-files.js

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    uMatrix - a Chromium browser extension to black/white list requests.
+    uMatrix - a browser extension to black/white list requests.
     Copyright (C) 2014-2018 Raymond Hill
 
     This program is free software: you can redistribute it and/or modify
@@ -43,6 +43,7 @@ vAPI.messaging.addListener(function onMessage(msg) {
         break;
     case 'assetsUpdated':
         document.body.classList.remove('updating');
+        renderWidgets();
         break;
     case 'loadHostsFilesCompleted':
         renderHostsFiles();

src/js/traffic.js

@@ -127,7 +127,15 @@ var onBeforeRequestHandler = function(details) {
         rootHostname = tabContext.rootHostname,
         specificity = 0;
 
-    if ( tabId < 0 && details.documentUrl !== undefined ) {
+    // https://github.com/gorhill/uMatrix/issues/995
+    //   For now we will not reclassify behind-the-scene contexts which are not
+    //   network-based URIs. Once the logger is able to provide context
+    //   information, the reclassification will be allowed.
+    if (
+        tabId < 0 &&
+        details.documentUrl !== undefined &&
+        µmuri.isNetworkURI(details.documentUrl)
+    ) {
         tabId = µm.tabContextManager.tabIdFromURL(details.documentUrl);
         rootHostname = µmuri.hostnameFromURI(
             µm.normalizePageURL(0, details.documentUrl)

src/js/uritools.js

@@ -1,7 +1,7 @@
 /*******************************************************************************
 
-    uMatrix - a Chromium browser extension to black/white list requests.
-    Copyright (C) 2014-2017 Raymond Hill
+    uMatrix - a browser extension to black/white list requests.
+    Copyright (C) 2014-2018 Raymond Hill
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -246,11 +246,16 @@ URI.schemeFromURI = function(uri) {
 
 /******************************************************************************/
 
+const reNetworkScheme = /^(?:https?|wss?|ftps?)\b/;
+const reNetworkURI = /^(?:ftps?|https?|wss?):\/\//;
+
 URI.isNetworkScheme = function(scheme) {
-    return this.reNetworkScheme.test(scheme);
+    return reNetworkScheme.test(scheme);
 };
 
-URI.reNetworkScheme = /^(?:https?|wss?|ftps?)\b/;
+URI.isNetworkURI = function(uri) {
+    return reNetworkURI.test(uri);
+};
 
 /******************************************************************************/
 
@@ -403,11 +408,9 @@ var domainCachePrune = function() {
     }
 };
 
-var domainCacheReset = function() {
+window.addEventListener('publicSuffixList', function() {
     domainCache.clear();
-};
-
-psl.onChanged.addListener(domainCacheReset);
+});
 
 /******************************************************************************/
 

src/lib/publicsuffixlist.js

@@ -21,6 +21,8 @@
 
 /*! Home: https://github.com/gorhill/publicsuffixlist.js */
 
+'use strict';
+
 /*
     This code is mostly dumb: I consider this to be lower-level code, thus
     in order to ensure efficiency, the caller is responsible for sanitizing
@@ -33,8 +35,6 @@
 
 ;(function(root) {
 
-'use strict';
-
 /******************************************************************************/
 
 var exceptions = new Map();
@@ -46,8 +46,6 @@ var rules = new Map();
 var cutoffLength = 256;
 var mustPunycode = /[^\w.*-]/;
 
-var onChangedListeners = [];
-
 /******************************************************************************/
 
 // In the context of this code, a domain is defined as:
@@ -242,7 +240,7 @@ function parse(text, toAscii) {
     crystallize(exceptions);
     crystallize(rules);
 
-    callListeners(onChangedListeners);
+    window.dispatchEvent(new CustomEvent('publicSuffixList'));
 }
 
 /******************************************************************************/
@@ -315,55 +313,17 @@ let toSelfie = function() {
 };
 
 let fromSelfie = function(selfie) {
-    if (
-        selfie instanceof Object === false ||
-        selfie.magic !== selfieMagic
-    ) {
+    if ( selfie instanceof Object === false || selfie.magic !== selfieMagic ) {
         return false;
     }
     rules = new Map(selfie.rules);
     exceptions = new Map(selfie.exceptions);
-    callListeners(onChangedListeners);
+    window.dispatchEvent(new CustomEvent('publicSuffixList'));
     return true;
 };
 
 /******************************************************************************/
 
-var addListener = function(listeners, callback) {
-    if ( typeof callback !== 'function' ) {
-        return;
-    }
-    if ( listeners.indexOf(callback) === -1 ) {
-        listeners.push(callback);
-    }
-};
-
-var removeListener = function(listeners, callback) {
-    var pos = listeners.indexOf(callback);
-    if ( pos !== -1 ) {
-        listeners.splice(pos, 1);
-    }
-};
-
-var callListeners = function(listeners) {
-    for ( var i = 0; i < listeners.length; i++ ) {
-        listeners[i]();
-    }
-};
-
-/******************************************************************************/
-
-var onChanged = {
-    addListener: function(callback) {
-        addListener(onChangedListeners, callback);
-    },
-    removeListener: function(callback) {
-        removeListener(onChangedListeners, callback);
-    }
-};
-
-/******************************************************************************/
-
 // Public API
 
 root = root || window;
@@ -374,8 +334,7 @@ root.publicSuffixList = {
     'getDomain': getDomain,
     'getPublicSuffix': getPublicSuffix,
     'toSelfie': toSelfie,
-    'fromSelfie': fromSelfie,
-    'onChanged': onChanged
+    'fromSelfie': fromSelfie
 };
 
 /******************************************************************************/