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background.js
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background.js
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let whitelist = {};
let whitelistDomains = new Set();
let tabs = {};
let domains = {};
window.whitelistTabs = {};
let stores = new Set();
const debug = false;
const initGlobals = () => {
chrome.tabs.query({}, (ts) => {
for (let tab of ts) {
const url = parseUrl(tab.url);
if (!isWebPage(url)) continue;
tabs[tab.id] = { url: url, store: tab.cookieStoreId };
const nd = normalizeDomain(url.host);
if (nd in domains) {
domains[nd]++;
} else {
domains[nd] = 1;
}
}
});
};
const storageGet = (key) => {
return new Promise(resolve => {
chrome.storage.local.get([key], (result) => {
resolve(result[key]);
});
});
};
const getCookieStores = () => {
return new Promise(resolve => {
chrome.cookies.getAllCookieStores(result => {
resolve(result);
});
});
};
const checkWhitelist = (domain) => {
domain = normalizeDomain(domain);
const bd = baseDomain(domain);
const rules = whitelist[bd] || [];
for (let rule of rules) {
if (rule.test(domain)) {
return true;
}
}
return false;
};
const updateWhitelist = (wl) => {
whitelistDomains = new Set(wl.map(r => cleanRule(r)));
const newWhitelist = {};
for (let r of wl) {
const bd = baseDomain(cleanRule(r));
if (!(bd in newWhitelist)) {
newWhitelist[bd] = [];
}
newWhitelist[bd].push(new RegExp(r));
}
whitelist = newWhitelist;
};
const loadWhitelist = async () => {
const whitelist = await storageGet("whitelist");
if (whitelist) {
updateWhitelist(whitelist);
}
};
const getHistory = (startTime, endTime) => {
return new Promise(resolve => {
chrome.history.search(
{
text: "",
startTime: startTime,
endTime: endTime,
maxResults: 1000,
},
h => {
resolve(h);
}
);
});
};
const getHistoryOrigins = async () => {
let lastHistory = await storageGet("lastHistory");
lastHistory = lastHistory || 0;
let origins = new Set();
const start = Date.now();
let endTime = start;
while (endTime > lastHistory) {
const history = await getHistory(lastHistory, endTime);
for (let h of history) {
if (!isWebPage(h.url)) continue;
const url = new URL(h.url);
origins.add(url.origin);
}
if (!history.length || history.length < 1000) break;
endTime = history[history.length - 1].lastVisitTime;
}
chrome.storage.local.set({ "lastHistory": start });
return origins;
};
const cleanBrowsingData = async (origins, ignore) => {
for (let o of origins) {
const domain = getDomain(o);
if (checkWhitelist(domain)) continue;
if (ignore && ignore.has(baseDomain(domain))) continue;
let removalOptions = {};
let removeData = {
"indexedDB": true,
"localStorage": true,
"pluginData": true,
"serviceWorkers": true,
};
if (isFirefox) {
const url = new URL(o);
removalOptions = {
"hostnames": [url.hostname],
};
} else {
removalOptions = {
"origins": [o],
};
removeData = Object.assign(removeData, {
"cacheStorage": true,
"fileSystems": true,
"webSQL": true
});
}
if (debug) {
console.log({ removalOptions, removeData });
}
chrome.browsingData.remove(
removalOptions,
removeData,
);
}
};
const cleanCookiesWithDetails = async (options) => {
const cookieDetails = copyFields(options, ["url", "domain", "storeId"]);
const cookies = await getCookies(cookieDetails);
const whitelistCheckCache = {};
let urlBaseDom;
if (options.url) {
urlBaseDom = baseDomain(getDomain(options.url));
}
if (options.domain) {
urlBaseDom = baseDomain(options.domain);
}
for (let cookie of cookies) {
const fullDomain = cookieDomain(cookie);
const domain = normalizeDomain(fullDomain);
if (!options.cleanBaseDomain && domain === urlBaseDom) continue;
let isWhitelisted = whitelistCheckCache[domain];
if (isWhitelisted === undefined) {
isWhitelisted = checkWhitelist(domain);
whitelistCheckCache[domain] = isWhitelisted;
}
if (isWhitelisted) continue;
if (options.ignore
&& options.ignore.has(baseDomain(domain))) continue;
let url;
if (cookie.secure) {
url = `https://${fullDomain}${cookie.path}`;
} else {
url = `http://${fullDomain}${cookie.path}`;
}
const removeData = {
url: url,
name: cookie.name,
};
if (isFirefox) {
removeData.firstPartyDomain = cookie.firstPartyDomain;
}
removeData.storeId = cookieDetails.storeId;
if (debug) {
console.log(removeData);
}
chrome.cookies.remove(removeData);
cleanBrowsingData([new URL(url).origin]);
}
};
const periodicClean = async (ignore) => {
const origins = await getHistoryOrigins();
cleanBrowsingData(origins, ignore);
for (let storeId of stores) {
cleanCookiesWithDetails({ storeId, ignore });
}
};
const cleanCookies = async (options) => {
await cleanCookiesWithDetails(options);
const bd = baseDomain(getDomain(options.url));
if (options.cleanBaseDomain) {
await cleanCookiesWithDetails({
domain: bd,
storeId: options.storeId,
ignore: options.ignore,
});
}
};
const forceClean = async () => {
const tab = await getCurrentTab();
if (!tab) return;
const url = parseUrl(tab.url);
if (!isWebPage(url)) return;
if (!checkWhitelist(url.host)) {
await cleanCookies({
url: tab.url,
storeId: tab.cookieStoreId,
});
const origin = new URL(tab.url).origin;
cleanBrowsingData([origin]);
}
};
const onMessage = (message) => {
switch (message.action) {
case "open_options":
chrome.tabs.create({ url: "options.html" });
break;
case "clean":
forceClean();
break;
case "update_whitelist":
updateWhitelist(message.whitelist);
getCurrentTab().then(setBadge);
break;
case "update_badge":
getCurrentTab().then(setBadge);
break;
case "whitelist_tab":
getCurrentTab().then(tab => {
if (tab.id in window.whitelistTabs) {
delete window.whitelistTabs[tab.id];
} else {
const domain = baseDomain(getDomain(tab.url));
window.whitelistTabs[tab.id] = new Set([domain]);
}
});
break;
}
};
const onTabClose = async (tabId, removeInfo) => {
if (removeInfo !== undefined) {
if (tabId in window.whitelistTabs) {
delete window.whitelistTabs[tabId];
}
}
const tabData = tabs[tabId];
if (!tabData || !isWebPage(tabData.url)) return;
delete tabs[tabId];
const url = tabData.url;
const oldDomain = normalizeDomain(url.host);
if (oldDomain in domains) {
domains[oldDomain]--;
if (domains[oldDomain] === 0) {
delete domains[oldDomain];
if (!(tabId in window.whitelistTabs)) {
const isBase = oldDomain === baseDomain(oldDomain);
let cleanBase = true;
for (let otherDomain in domains) {
if (baseDomain(otherDomain) === baseDomain(oldDomain)) {
if (isBase) return;
cleanBase = false;
break;
}
}
await cleanCookies({
url: url.toString(),
storeId: tabData.store,
cleanBaseDomain: cleanBase,
});
const origin = new URL(url).origin;
cleanBrowsingData([origin]);
} else {
window.whitelistTabs[tabId].add(baseDomain(oldDomain));
}
}
}
};
const setBadge = async (tab) => {
if (!tab || !isWebPage(tab.url)) return;
if (tab.incognito) return;
const cookies = await getCookiesForUrl(tab.url);
const cookieDomains = new Set();
for (let c of cookies) {
let domain = normalizeDomain(cookieDomain(c));
cookieDomains.add(domain);
}
const tabDomain = getDomain(tab.url);
if (!cookieDomains.has(tabDomain)) {
cookieDomains.add(tabDomain);
}
const total = cookieDomains.size;
let whitelisted = 0;
for (let d of cookieDomains) {
if (whitelistDomains.has(d)) {
whitelisted++;
}
}
let badge = "";
let color;
if (whitelisted === total) {
badge += whitelisted;
color = "#4E9A06";
} else if (whitelisted === 0) {
badge += total;
color = "#CD0000";
} else {
badge = `${whitelisted}/${total}`;
color = "#C4A000";
}
chrome.browserAction.setBadgeText({
text: badge,
tabId: tab.id,
});
chrome.browserAction.setBadgeBackgroundColor({
color: color,
tabId: tab.id,
});
};
const cleanBadge = (tabId) => {
chrome.browserAction.setBadgeText({
text: "",
tabId: tabId,
});
};
const onTabCreate = async (tab) => {
const cs = await getCookieStores();
for (let s of cs) {
if (s.incognito) continue;
stores.add(s.id);
}
if (!tab.url) return;
const url = parseUrl(tab.url);
if (!isWebPage(url)) return;
const newDomain = normalizeDomain(url.host);
if (tab.id in tabs) {
const oldDomain = normalizeDomain(tabs[tab.id].url.host);
if (oldDomain === newDomain) return;
}
tabs[tab.id] = { url: url, store: tab.cookieStoreId };
if (newDomain in domains) {
domains[newDomain]++;
} else {
domains[newDomain] = 1;
}
await setBadge(tab);
};
const onTabChange = async (tabId, changeInfo, tab) => {
if (Object.keys(changeInfo).length === 1 && changeInfo.attention !== undefined) {
return;
}
const oldTabData = tabs[tabId];
if (oldTabData && baseDomain(oldTabData.url.host) === baseDomain(getDomain(tab.url))) {
await setBadge(tab);
return;
}
await onTabClose(tabId, undefined);
await onTabCreate(tab);
if (!isWebPage(tab.url)) {
cleanBadge(tab.id);
}
};
const onTabActivated = () => {
getCurrentTab().then(setBadge);
};
const cleanCookiesCheckOpenTabs = () => {
chrome.tabs.query({}, (ts) => {
const ds = new Set(ts.map((t) => baseDomain(getDomain(t.url))));
for (let s of Object.values(window.whitelistTabs)) {
for (let e of s) {
ds.add(e);
}
}
periodicClean(ds);
});
};
chrome.runtime.onMessage.addListener(onMessage);
chrome.tabs.onCreated.addListener(onTabCreate);
chrome.tabs.onUpdated.addListener(onTabChange);
chrome.tabs.onRemoved.addListener(onTabClose);
chrome.tabs.onActivated.addListener(onTabActivated);
initGlobals();
loadWhitelist();
setInterval(() => cleanCookiesCheckOpenTabs(), 15000);
setInterval(() => {
getCurrentTab().then(setBadge);
}, 15000);
// TODO: remove in next version
chrome.storage.local.remove(["indexeddbs"]);