Big update:

* Move all core functions from mains.js to background.js
    * Use message interface for IPCs between main.js, background.js and popup.js
    * Add popup interface :
      	  * safest method to compute masterkey
	  * Direct access to our own gPass server with auto URL and username fill
    * Add some specific menus :
      	  * Access to gPass settings
	  * Allow to disable extension
    * Update gPass icon when a password field has focus and gPass is ready to work

chrome_addon/lib/misc.js

@@ -1,22 +1,27 @@
 /*
-  Copyright (C) 2013-2017 Grégory Soutadé
-  
+  Copyright (C) 2013-2020 Grégory Soutadé
+
   This file is part of gPass.
-  
+
   gPass 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.
-  
+
   gPass 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 gPass.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+var DEBUG = false;
+
+SERVER = {OK : 0, FAILED : 1, RESTART_REQUEST : 2};
+GPASS_ICON = {NORMAL:0, DISABLED:1, ACTIVATED:2};
+
 var default_preferences = {"pbkdf2_level": 1000,
 			   "account_url": "https://gpass-demo.soutade.fr/demo",
 			   "crypto_v1_compatible": true};
@@ -26,7 +31,7 @@ var crypto = crypto || window.crypto;
 
 function notify(text, data)
 {
-    browser.runtime.sendMessage({type: "notification", options:{"message":text}});
+    browser.runtime.sendMessage({type: "notification", options:{"message":text, "data":data}});
 }
 
 function block_url(url)
@@ -35,6 +40,12 @@ function block_url(url)
     browser.runtime.sendMessage({type: "block_url", options:{"url":url}});
 }
 
+function unblock_url(url)
+{
+    debug("Unblock URL " + url);
+    browser.runtime.sendMessage({type: "unblock_url", options:{"url":url}});
+}
+
 // https://stackoverflow.com/questions/6965107/converting-between-strings-and-arraybuffers
 function ab2str(buf) {
     return String.fromCharCode.apply(null, new Uint8Array(buf));
@@ -124,7 +135,7 @@ function _encrypt(mkey, iv, data)
 {
     while ((data.length % 16))
 	data += "\0";
-    
+
     data = str2ab(data);
 
     promise = mkey.then(function(mkey){
@@ -173,8 +184,8 @@ async function _decrypt(mkey, iv, data)
 async function encrypt_ecb(mkey, data)
 {
     var result = "";
-    
-    console.log("Encrypt ECB " + data);
+
+    debug("Encrypt ECB " + data);
 
     nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
 
@@ -195,8 +206,8 @@ async function decrypt_ecb(mkey, data)
 {
     var result = "";
 
-    console.log("Decrypt ECB " + data);
-    
+    debug("Decrypt ECB " + data);
+
     nulliv = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
 
     while (data.length > 16)
@@ -213,23 +224,23 @@ async function decrypt_ecb(mkey, data)
 }
 
 async function encrypt_cbc(mkey, iv, data)
-{ 
-    console.log("Encrypt CBC " + data);
+{
+    debug("Encrypt CBC " + data);
 
     var result = await _encrypt(mkey, str2ab(iv), data);
-    
+
     // Remove PKCS7 padding
     return result.slice(0, result.length-16);
 }
 
 async function decrypt_cbc(mkey, iv, data)
 {
-    console.log("Decrypt CBC " + data);
+    debug("Decrypt CBC " + data);
 
     var result = await _decrypt(mkey, str2ab(iv), data);
 
     // Remove PKCS7 padding
-    return result.slice(0, result.length-16);    
+    return result.slice(0, result.length-16);
 }
 
 async function digest(data)
@@ -238,3 +249,47 @@ async function digest(data)
 	return ab2str(hash);
     });
 }
+
+function wildcard_domain(domain)
+{
+    var parts = domain.split(".");
+
+    // Standard root domain (zzz.xxx.com) or more
+    if (parts.length > 2)
+    {
+	res = "*.";
+	for (i=1; i<parts.length; i++)
+	    res += parts[i] + ".";
+	return res.substr(0, res.length-1);
+    }
+    // Simple xxx.com
+    else if (parts.length == 2)
+	return "*." + domain;
+
+    return "";
+}
+
+// http://stackoverflow.com/questions/3745666/how-to-convert-from-hex-to-ascii-in-javascript
+function hex2a(hex) {
+    var str = '';
+    for (var i = 0; i < hex.length; i += 2)
+        str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
+    return str;
+}
+
+function a2hex(_str_) {
+    var hex = '';
+    for (var i = 0; i < _str_.length; i++)
+    {
+	var c = _str_.charCodeAt(i).toString(16);
+	if (c.length == 1) c = "0" + c;
+        hex += c;
+    }
+    return hex;
+}
+
+function debug(s)
+{
+    if (DEBUG)
+	console.log(s);
+}