LocalCDN-Firefox-Chrome-Brave/core/state-manager.js

351 lines
8.9 KiB
JavaScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/**
* State Manager
* Belongs to LocalCDN (since 2020-02-26)
* (Origin: Decentraleyes)
*
* @author Thomas Rientjes
* @since 2017-03-10
*
* @author nobody
* @since 2020-02-26
*
* @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';
/**
* State Manager
*/
var stateManager = {};
/**
* Public Methods
*/
stateManager.registerInjection = function (tabIdentifier, injection) {
let injectionIdentifier, registeredTab, injectionCount;
injectionIdentifier = injection.source + injection.path + injection.version;
registeredTab = stateManager.tabs[tabIdentifier];
registeredTab.injections[injectionIdentifier] = injection;
injectionCount = Object.keys(registeredTab.injections).length || 0;
if (injectionCount > 0) {
chrome.browserAction.setTitle({
'tabId': tabIdentifier,
'title': `LocalCDN (${injectionCount})`
});
if (stateManager.showIconBadge === true) {
wrappers.setBadgeText({
'tabId': tabIdentifier,
'text': injectionCount.toString()
});
}
}
if (isNaN(storageManager.amountInjected)) {
storageManager.type.get(Setting.AMOUNT_INJECTED, function (items) {
storageManager.amountInjected = items.amountInjected;
storageManager.type.set({
[Setting.AMOUNT_INJECTED]: ++storageManager.amountInjected
});
});
} else {
chrome.storage.local.set({
[Setting.AMOUNT_INJECTED]: ++storageManager.amountInjected
});
}
if (stateManager.internalStatistics) {
stats.setStats(injection);
}
};
stateManager.addDomainToAllowlist = function (domain) {
return new Promise((resolve) => {
let allowlistedDomains = requestAnalyzer.allowlistedDomains;
allowlistedDomains[domain] = true;
storageManager.type.set({allowlistedDomains}, resolve);
});
};
stateManager.removeDomainFromAllowlist = function (domain) {
return new Promise((resolve) => {
let allowlistedDomains = requestAnalyzer.allowlistedDomains;
delete allowlistedDomains[domain];
storageManager.type.set({allowlistedDomains}, resolve);
});
};
stateManager.addDomainToManipulateDOMlist = function (domain) {
return new Promise((resolve) => {
let domainsManipulateDOM = requestAnalyzer.domainsManipulateDOM;
domainsManipulateDOM[domain] = true;
storageManager.type.set({domainsManipulateDOM}, resolve);
});
};
stateManager.removeDomainFromManipulateDOMlist = function (domain) {
return new Promise((resolve) => {
let domainsManipulateDOM = requestAnalyzer.domainsManipulateDOM;
delete domainsManipulateDOM[domain];
storageManager.type.set({domainsManipulateDOM}, resolve);
});
};
/**
* Private Methods
*/
stateManager._createTab = function (tab) {
let tabIdentifier, requestFilters;
tabIdentifier = tab.id;
stateManager.tabs[tabIdentifier] = {
'injections': {}
};
requestFilters = {
'tabId': tabIdentifier,
'urls': stateManager.validHosts
};
chrome.webRequest.onBeforeRequest.addListener(function (requestDetails) {
tab = stateManager.tabs[tabIdentifier].details || {};
return interceptor.handleRequest(requestDetails, tabIdentifier, tab);
}, requestFilters, [WebRequest.BLOCKING]);
};
stateManager._removeTab = function (tabIdentifier) {
delete stateManager.tabs[tabIdentifier];
};
stateManager._updateTab = function (details) {
let tabDomain, domainIsAllowlisted, frameIdentifier, tabIdentifier;
tabDomain = helpers.extractDomainFromUrl(details.url, true);
domainIsAllowlisted = stateManager._domainIsListed(tabDomain);
frameIdentifier = details.frameId;
tabIdentifier = details.tabId;
if (frameIdentifier !== 0 || tabIdentifier === -1) {
return;
}
chrome.browserAction.setTitle({
'tabId': tabIdentifier,
'title': 'LocalCDN (0)'
});
if (domainIsAllowlisted) {
stateManager._setIconDisabled(tabIdentifier);
chrome.browserAction.setTitle({
'tabId': tabIdentifier,
'title': 'LocalCDN ()'
});
}
if (stateManager.showIconBadge === true) {
stateManager._clearBadgeText(tabIdentifier);
}
if (stateManager.tabs[tabIdentifier]) {
stateManager.tabs[tabIdentifier].injections = {};
}
};
stateManager._handleStorageChanged = function (changes) {
if (Setting.SHOW_ICON_BADGE in changes) {
stateManager.showIconBadge = changes.showIconBadge.newValue;
if (changes.showIconBadge.newValue !== true) {
chrome.tabs.query({}, function (tabs) {
tabs.forEach(stateManager._removeIconBadgeFromTab);
});
}
}
if (Setting.STRIP_METADATA in changes) {
requestSanitizer.disable();
if (changes.stripMetadata.newValue !== false) {
requestSanitizer.enable();
}
}
if (Setting.NEGATE_HTML_FILTER_LIST in changes) {
stateManager.getInvertOption = changes.negateHtmlFilterList.newValue;
}
if (Setting.SELECTED_ICON in changes) {
stateManager.selectedIcon = changes.selectedIcon.newValue;
}
if (Setting.INTERNAL_STATISTICS in changes) {
stateManager.internalStatistics = changes.internalStatistics.newValue;
}
if (Setting.INTERNAL_STATISTICS_DATA in changes) {
stats.data = changes.internalStatisticsData.newValue;
}
};
stateManager._clearBadgeText = function (tabIdentifier) {
wrappers.setBadgeText({
'tabId': tabIdentifier,
'text': ''
});
};
stateManager._removeIconBadgeFromTab = function (tab) {
stateManager._clearBadgeText(tab.id);
};
stateManager._domainIsListed = function (domain, listname) {
if (domain !== null) {
let allowlistRecord, isAllowlisted;
if (listname === "manipulate-dom") {
allowlistRecord = requestAnalyzer.domainsManipulateDOM[domain];
isAllowlisted = Boolean(allowlistRecord);
} else {
allowlistRecord = requestAnalyzer.allowlistedDomains[domain];
isAllowlisted = Boolean(allowlistRecord);
}
return isAllowlisted;
}
return false;
};
stateManager._setIconDisabled = function (tabIdentifier) {
wrappers.setIcon({
'path': stateManager.selectedIcon,
'tabId': tabIdentifier
}, 'Disabled');
};
/**
* Initializations
*/
stateManager.requests = {};
stateManager.tabs = {};
stateManager.getInvertOption = false;
stateManager.validHosts = [];
stateManager.selectedIcon = 'Default';
stateManager.internalStatistics = false;
for (let mapping in mappings.cdn) {
let supportedHost = Address.ANY_PROTOCOL + mapping + Address.ANY_PATH;
stateManager.validHosts.push(supportedHost);
}
chrome.tabs.query({}, function (tabs) {
tabs.forEach(stateManager._createTab);
});
storageManager.type.get([Setting.SHOW_ICON_BADGE, Setting.SELECTED_ICON], function (items) {
if (items.showIconBadge === undefined) {
items.showIconBadge = true;
}
if (items.selectedIcon === undefined) {
stateManager.selectedIcon = 'Default';
}
stateManager.showIconBadge = items.showIconBadge;
stateManager.selectedIcon = items.selectedIcon;
});
chrome.storage.local.get([Setting.INTERNAL_STATISTICS], function (items) {
stateManager.internalStatistics = items.internalStatistics;
});
/**
* Event Handlers
*/
chrome.tabs.onCreated.addListener(stateManager._createTab);
chrome.tabs.onRemoved.addListener(stateManager._removeTab);
chrome.webRequest.onBeforeRequest.addListener(function (requestDetails) {
if (requestDetails.tabId !== -1 && stateManager.tabs[requestDetails.tabId]) {
stateManager.tabs[requestDetails.tabId].details = {
'url': requestDetails.url
};
}
}, {'types': [WebRequestType.MAIN_FRAME], 'urls': [Address.ANY]}, [WebRequest.BLOCKING]);
chrome.webNavigation.onCommitted.addListener(stateManager._updateTab, {
'url': [{'urlContains': ':'}]
});
chrome.webRequest.onErrorOccurred.addListener(function (requestDetails) {
if (stateManager.requests[requestDetails.requestId]) {
delete stateManager.requests[requestDetails.requestId];
}
}, {'urls': [Address.ANY]});
chrome.webRequest.onBeforeRedirect.addListener(function (requestDetails) {
let knownRequest = stateManager.requests[requestDetails.requestId];
if (knownRequest) {
stateManager.registerInjection(knownRequest.tabIdentifier, knownRequest.targetDetails);
delete stateManager.requests[requestDetails.requestId];
}
}, {'urls': [Address.ANY]});
chrome.storage.onChanged.addListener(stateManager._handleStorageChanged);