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background.html
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background.html
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<!DOCTYPE html>
<html>
<script type="text/javascript" src="/js/settings.js"></script>
<!-- Web SQL Database to store friends.. -->
<script type="text/javascript" src="/js/database.js"></script>
<!-- For OAuth google authentication. -->
<script type="text/javascript" src="/js/lib/chrome_ex_oauthsimple.js"></script>
<script type="text/javascript" src="/js/lib/chrome_ex_oauth.js"></script>
<!-- For importing to contacts. -->
<script type="text/javascript" src="/js/gmail_exporter.js"></script>
<script type="text/javascript" src="/js/csv_exporter.js"></script>
<script type="text/javascript" src="/js/grabber.js"></script>
<!-- Add additional export/import methods here. -->
<script type="text/javascript" src="/js/lib/jquery-1.5.2.min.js"></script>
<script type="text/javascript">
var db = new FriendDB();
var grabber = new ProfileGrabber();
var facebook_id = -1;
var worker_id = -1;
var error_occured = false;
var friendsMap = {};
var cachedMap = {};
// Start it globally.
db.open();
// Synchronously retrieve the current extension version.
var version = 'NaN';
var currVersion = chrome.app.getDetails().version;
var prevVersion = settings.version;
// Check if the extension has been just updated or installed.
if (currVersion != prevVersion) {
if (typeof prevVersion == 'undefined') {
// onInstall: Create the database tables.
db.createTable();
}
else {
// onUpdate: Do nothing now.
}
settings.version = currVersion;
}
/**
* Open a singleton page, which means, if a page already exists, it just selects it.
* @param url The page which it will navigate to.
*/
function openSingletonPage(url) {
var views = chrome.extension.getViews();
for (var v in views) {
var view = views[v];
if (view.location.href.indexOf(url) == 0) {
view.focus();
return;
}
}
chrome.tabs.create({url: url, selected: true}, function(tab) {
worker_id = tab.id;
});
}
function putFriendCache(friend) {
cachedMap[friend.id] = friend;
}
function clearCache() {
cachedMap = {};
}
/**
* Callback when friend finished exporting.
*/
function onFriendFinishExport(status) {
chrome.tabs.sendRequest(worker_id, {
finishedProcessingFriend: status.finishedProcessingFriend,
friend: status.friend,
success: status.success,
message: status.message
});
}
/**
* Callback when friend finished relayed.
*/
function onFriendRelay(friend) {
var payload = { gotInfoForFriend: friend };
chrome.tabs.sendRequest(worker_id, payload, function (response) {
if (!response.OK) {
error_occured = true;
chrome.tabs.sendRequest(worker_id, { facebookError: 1 });
}
else {
db.persistFriend(friend, function (response) {
//console.debug('persisted!');
});
}
});
}
function startExportFriendData() {
var i = 0;
var errorHappened = false;
// Iterate through each friend by key[value].
$.each(friendsMap, function(key, value) {
// If the item is cached, no need to refetch it, just relay the information.
if (cachedMap[key]) {
console.log('Cache received, no need to grab it again.');
onFriendRelay(cachedMap[key]);
}
else {
// Figure out the proper info page, this makes sure to support both
// profile name pages with (unique names) or just profile id pages
// (numbers). As well, append the ID so we can uniquely identify each page
// request with their ID being fetched..
var href = 'http://m.facebook.com' + value.path;
href.match('\\?') ? href += '&' : href += '?';
href += 'v=info';
// Delay load each friend.
var delay = i * 11000 + Math.random() * 1000;
setTimeout(function() {
var friend = { id: key, name: value.text, photo: value.photo };
// Verify no error happened. This could happen if your not logged into
// the mobile version of Facebook.
// Force refreshing the page is the safest way out of corruption.
if (errorHappened) {
chrome.tabs.sendRequest(worker_id, { facebookError: 1 });
window.location.reload();
}
chrome.tabs.sendRequest(worker_id, {
friendExtractionStarted: key,
name: friend.name
});
grabber.extractInfo(friend, href, function(f) {
if (f.error) {
errorHappened = true;
}
else {
onFriendRelay(f);
}
});
}, delay);
i++;
}
});
}
// Extension request listener.
chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
if (request.switchToWorkerTab) {
facebook_id = sender.tab.id;
openSingletonPage(chrome.extension.getURL('controller.html'));
}
else if (request.doGmailExport) {
var gmail = new GoogleExport(request.requestedFriends)
gmail.process(onFriendFinishExport);
}
else if (request.doCSVExport) {
var csv = new CSVExporter(request.requestedFriends);
csv.process(onFriendFinishExport);
chrome.tabs.sendRequest(worker_id, { csvExportFinished: csv.getDump() });
}
else if (request.friendsListReceived) {
friendsMap = request.friendsListReceived;
}
});
</script>
</html>