e10s ready!

Fixes #60 and #42

lib/check.js

@@ -0,0 +1,95 @@
+/* global console,exports */
+/* jslint moz: true */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+(function(){
+	"use strict";
+	
+	const lists = require("./lists");
+	const preferences = require("sdk/simple-prefs");
+	const prefs = preferences.prefs;
+	const {parseErrorStack} = require("./callingStack");
+	const {URL} = require("sdk/url");
+
+	exports.check = function check({url, errorStack}){
+		var callingStack = parseErrorStack(errorStack);
+		var match = checkBoth(callingStack, url, prefs.blockMode).match(/^(block|allow|fake|ask)(|Readout|Everything|Context)$/);
+		if (match){
+			return {
+				type: (match[2] === "Everything" || match[2] === "")?
+					["context", "readout"]:
+					[match[2].toLowerCase()],
+				mode: match[1]
+			};
+			
+		}
+		else {
+			return {
+				type: ["context", "readout"],
+				mode: "block"
+			};
+		}
+		
+	};
+
+	function checkBoth(stack, url, blockMode){
+		if (prefs.enableStackList && checkStack(stack)){
+			return "allow";
+		}
+		else {
+			return checkURL(url, blockMode);
+		}
+	}
+
+	function checkURL(url, blockMode){
+		url = new URL(url);
+		switch (url.protocol){
+			case "about:":
+				if (url.href === "about:blank"){
+					break;
+				}
+			case "chrome:":
+				return "allow";
+		}
+		
+		var mode = "block";
+		switch (blockMode){
+			case "blockEverything":
+				mode = "block";
+				break;
+			case "block":
+			case "blockContext":
+			case "blockReadout":
+			case "ask":
+			case "askContext":
+			case "askReadout":
+			case "fake":
+			case "fakeContext":
+			case "fakeReadout":
+			case "allow":
+			case "allowContext":
+			case "allowReadout":
+				if (url && lists.get("white").match(url)){
+					mode = "allow";
+				}
+				else if (url && lists.get("black").match(url)){
+					mode = "block";
+				}
+				else {
+					mode = blockMode;
+				}
+				break;
+			case "allowEverything":
+				mode = "allow";
+				break;
+			default:
+				console.log("Unknown blocking mode (" + blockMode + "). Default to block everything.");
+		}
+		return mode;
+	}
+
+	function checkStack(stack){
+		return lists.get("stack").match(stack);
+	}
+}());