1 files changed, 50 insertions, 0 deletions
diff --git a/lib/HostMap.jsm b/lib/HostMap.jsm
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+++ b/lib/HostMap.jsm
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+/*******************************************************************************
+
+    ηMatrix - a browser extension to black/white list requests.
+    Copyright (C) 2014-2019 The uMatrix/uBlock Origin authors
+    Copyright (C) 2019 Alessio Vanni
+
+    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
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+    Home: https://libregit.org/heckyel/ematrix
+    uMatrix Home: https://github.com/gorhill/uMatrix
+*/
+
+'use strict';
+
+var EXPORTED_SYMBOLS = ['HostMap'];
+
+var map = new Map();
+
+var HostMap = {
+    put: function (key, value) {
+        if (typeof key !== 'string' || typeof value !== 'string'
+            || !key || !value) {
+            throw new Error('invalid argument(s)');
+        }
+
+        if (map.get(key)) {
+            return;
+        }
+
+        map.set(key, value);
+    },
+    get: function (key) {
+        if (typeof key !== 'string' || !key) {
+            throw new Error('invalid argument');
+        }
+
+        return map.get(key);
+    },
+};