1 files changed, 161 insertions, 0 deletions
diff --git a/js/vapi-cloud.js b/js/vapi-cloud.js
new file mode 100644
index 0000000..b3d1b80
--- /dev/null
+++ b/js/vapi-cloud.js
@@ -0,0 +1,161 @@
+/*******************************************************************************
+
+    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://gitlab.com/vannilla/ematrix
+    uMatrix Home: https://github.com/gorhill/uMatrix
+*/
+
+'use strict';
+
+/******************************************************************************/
+
+(function () {
+    const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+    Cu.import('resource://gre/modules/Services.jsm');
+
+    let vAPI = self.vAPI; // Guaranteed to be initialized by vapi-background.js
+
+    vAPI.cloud = (function () {
+	let extensionBranchPath = 'extensions.' + location.host;
+	let cloudBranchPath = extensionBranchPath + '.cloudStorage';
+
+	// https://github.com/gorhill/uBlock/issues/80#issuecomment-132081658
+	// We must use get/setComplexValue in order to properly handle strings
+	// with unicode characters.
+	let iss = Ci.nsISupportsString;
+	let argstr = Components.classes['@mozilla.org/supports-string;1']
+            .createInstance(iss);
+
+	let options = {
+            defaultDeviceName: '',
+            deviceName: ''
+	};
+
+	// User-supplied device name.
+	try {
+            options.deviceName = Services.prefs
+                .getBranch(extensionBranchPath + '.')
+                .getComplexValue('deviceName', iss)
+                .data;
+	} catch(ex) {
+	    // Ignore
+	}
+
+	var getDefaultDeviceName = function() {
+            var name = '';
+            try {
+		name = Services.prefs
+                    .getBranch('services.sync.client.')
+                    .getComplexValue('name', iss)
+                    .data;
+            } catch(ex) {
+		// Ignore
+            }
+
+            return name || window.navigator.platform || window.navigator.oscpu;
+	};
+
+	let start = function (dataKeys) {
+            let extensionBranch =
+		Services.prefs.getBranch(extensionBranchPath + '.');
+            let syncBranch =
+		Services.prefs.getBranch('services.sync.prefs.sync.');
+
+            // Mark config entries as syncable
+            argstr.data = '';
+            let dataKey;
+            for (let i=0; i<dataKeys.length; ++i) {
+		dataKey = dataKeys[i];
+		if (extensionBranch.prefHasUserValue('cloudStorage.' + dataKey)
+		    === false) {
+                    extensionBranch.setComplexValue('cloudStorage.' + dataKey,
+						    iss, argstr);
+		}
+		
+		syncBranch.setBoolPref(cloudBranchPath + '.' + dataKey, true);
+            }
+	};
+
+	let push = function (datakey, data, callback) {
+            let branch = Services.prefs.getBranch(cloudBranchPath + '.');
+            let bin = {
+		'source': options.deviceName || getDefaultDeviceName(),
+		'tstamp': Date.now(),
+		'data': data,
+		'size': 0
+            };
+            bin.size = JSON.stringify(bin).length;
+            argstr.data = JSON.stringify(bin);
+            branch.setComplexValue(datakey, iss, argstr);
+	    
+            if (typeof callback === 'function') {
+		callback();
+            }
+	};
+
+	let pull = function (datakey, callback) {
+            let result = null;
+            let  branch = Services.prefs.getBranch(cloudBranchPath + '.');
+	    
+            try {
+		let json = branch.getComplexValue(datakey, iss).data;
+		if (typeof json === 'string') {
+                    result = JSON.parse(json);
+		}
+            } catch(ex) {
+		// Ignore
+            }
+	    
+            callback(result);
+	};
+
+	let getOptions = function (callback) {
+            if (typeof callback !== 'function') {
+		return;
+            }
+	    
+            options.defaultDeviceName = getDefaultDeviceName();
+            callback(options);
+	};
+
+	let setOptions = function (details, callback) {
+            if (typeof details !== 'object' || details === null) {
+		return;
+            }
+
+            let branch = Services.prefs.getBranch(extensionBranchPath + '.');
+
+            if (typeof details.deviceName === 'string') {
+		argstr.data = details.deviceName;
+		branch.setComplexValue('deviceName', iss, argstr);
+		options.deviceName = details.deviceName;
+            }
+
+            getOptions(callback);
+	};
+
+	return {
+            start: start,
+            push: push,
+            pull: pull,
+            getOptions: getOptions,
+            setOptions: setOptions
+	};
+    })();
+})();