Accept Facebook group join request automatically.

fbautoaccept.js

/**
 * Install PhantomJS to run: http://phantomjs.org/
 * Needs jQuery 2.0.3 in the same directory (Name it as: jquery-2.0.3.min.js)
 */

var webpage = require('webpage');

config = {
    email: '',
    pass: '',
    groups: [
        // ...
    ]
};

function visitGroup(page, q) {
    var gid = q.pop();

    if (!gid) {
        phantom.exit();
        return;
    }

    console.log('start: ' + gid);
    var page = webpage.create();
    page.onConsoleMessage = function (msg) {
        console.log(msg);
    };
    page.onNavigationRequested = function(url) {
        if (url == 'phantomjs://exit') {
            console.log('bye');
            phantom.exit();
        }
    };
    page.open('https://www.facebook.com/groups/' + gid + '/requests/', function() {
        console.log('page open');
        console.log('js include: ' + page.injectJs('jquery-2.0.3.min.js') ? 'ok' : 'fail');
        page.evaluate(function() {
            var reqs = document.getElementById('Group_member_request_pagelet').querySelectorAll('li');
            var users = [];
            for (var i = 0; i < reqs.length; i++) {
                var user = {el: reqs[i]};
                users.push(user);
                var profileLink = reqs[i].querySelector('.fsl.fwb.fcb a');
                user.id = profileLink.pathname.substr(1);
                if (user.id == 'profile.php') {
                    user.id = profileLink.search.substr(4); // ?id=
                }

                var friendsInGroupLink = reqs[i].querySelector('a[href*="group_join_requesters_friends_in_group"]');
                user.friendsInGroup = Boolean(friendsInGroupLink);
            }

            console.log('processing ' + users.length + ' users...');
            var promises = $.map(users, function(u) {
                var url = 'http://graph.facebook.com/' + u.id;
                return $.get(url).then(function(json) {
                    u.info = json;
                }, function() { console.log('fail') });
            });
            if (promises.length == 0) {
                location.href = 'phantomjs://exit';
            }

            $.when.apply($, promises).then(function() {
                var n = 0;
                $.each(users, function(i, u) {
                    if (u.info.locale != 'ko_KR')
                        return;

                    if (!u.friendsInGroup)
                        return;

                    n++;
                    var btn = u.el.querySelector('.uiButtonConfirm');
                    var evt = document.createEvent('HTMLEvents');
                    evt.initEvent('click', true, true);
                    btn.dispatchEvent(evt);
                });

                setTimeout(function() {
                    location.href = 'phantomjs://exit';
                }, 1000 * n);
            }, function() {
                console.log('fail');
                location.href = 'phantomjs://exit';
            });
        });
    });
}

var loginPage = webpage.create();
loginPage.open('http://m.facebook.com', function() {
    loginPage.onNavigationRequested = function(url) {
        if (url.indexOf('home.php') === -1) return;
        console.log('login finished');
        loginPage.onNavigationRequested = undefined;
        var q = config.groups.slice(); // copy
        visitGroup(loginPage, q);
    };
    loginPage.evaluate(function(config) {
        var email = document.querySelector('input[name="email"]');
        email.value = config.email;
        var pass = document.querySelector('input[name="pass"]');
        pass.value = config.pass;

        email.form.submit();
    }, config);
});