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/**
* Interceptor
* Belongs to Decentraleyes.
*
* @author Thomas Rientjes
* @since 2016-04-06
* @license MPL 2.0
*
* 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/.
*/
'use strict';
/**
* Variables
*/
var interceptor = {};
/**
* Public Methods
*/
interceptor.register = function () {
chrome.tabs.onUpdated.addListener(function (tabIdentifier, changeInformation, tabDetails) {
if (changeInformation.status === 'loading') {
chrome.webRequest.onBeforeRequest.addListener(function (requestDetails) {
return interceptor._handleRequest(requestDetails, tabIdentifier, tabDetails);
}, { 'urls': ['*://*/*'], 'tabId': tabIdentifier }, ['blocking']);
}
});
};
/**
* Private Methods
*/
interceptor._handleRequest = function (requestDetails, tabIdentifier, tabDetails) {
let validCandidate, targetPath;
validCandidate = requestAnalyzer.isValidCandidate(requestDetails, tabDetails);
if (!validCandidate) {
return {
'cancel': false
};
}
targetPath = requestAnalyzer.getLocalTarget(requestDetails);
if (!targetPath) {
return interceptor._handleMissingCandidate();
}
if (!files[targetPath]) {
return interceptor._handleMissingCandidate();
}
chrome.storage.local.get('amountInjected', function (items) {
let amountInjected;
amountInjected = items.amountInjected || 0;
chrome.storage.local.set({
'amountInjected': (parseInt(amountInjected) + 1)
});
});
return {
'redirectUrl': chrome.extension.getURL(targetPath)
};
};
interceptor._handleMissingCandidate = function () {
return {
'cancel': interceptor.blockMissing
};
};
interceptor._applyBlockMissingPreference = function () {
chrome.storage.local.get('blockMissing', function (items) {
interceptor.blockMissing = items.blockMissing || false;
});
};
/**
* Initializations
*/
interceptor.blockMissing = false;
interceptor._applyBlockMissingPreference();
/**
* Event Handlers
*/
chrome.storage.onChanged.addListener(interceptor._applyBlockMissingPreference);