Add many users to reddit friends

README.md

This script prompts you for many usernames and adds them to your your r/friends list.

Usage:

1. Visit https://www.reddit.com/prefs/friends
2. Run this script.
3. Wait around for a while. (1 minute / 30 people.)

⚠️ You really shouldn't run random scripts from people on the internet. Your account/computer might get compromised or broken.

manyfriends.js

function sanityCheck() {
    if (document.location.pathname.indexOf('/prefs/friends') !== 0) {
        alert('You must be on https://www.reddit.com/prefs/friends/ to do this.');
        window.location = '/prefs/friends';
        return false;
    }
}

function promptForFriends() {
    sanityCheck();
    var usernamesStr = prompt('Who to friend? in the format:\n username1, username2, username3', 'username1, username2, username3');
    if (!usernamesStr) return;
    var usernames = usernamesStr.split(/[,\s]+/).filter(function(a) {
        return a;
    });
    friendMany(usernames);
}
function friendMany(usernames) {
    var promises = usernames.map(function(username, index, usernames) {
        var deferred = $.Deferred();
        setTimeout(function() {
            var ajax = friend(username);
            ajax.done(function() {
                deferred.resolve();
                if (allDone()) {
                    alert('Friended ' + username + '(' + (1 + index) + '/' + usernames.length + ')');
                }
            });
            ajax.fail(function() {
                deferred.reject();
                alert('Could not friend ' + username);
            });
        }, index * 2000);
        return deferred.promise();
    });

    function allDone() {
        return promises.some(function(promise) {
            return promise.state() !== 'pending';
        })
    }
    $(window).on('beforeunload', function() {
        if (!allDone()) {
            return 'Not done adding friends';
        }
    });
}

function friend(username) {
    if (!username) return;
    return $.ajax({
        url: '/api/friend',
        method: 'POST',
        data: {
            action: 'add',
            type: 'friend',
            name: username,
            uh: document.querySelector('input[name=uh]').value,
            container: document.querySelector('#friend input[name=container]').value,
            id: '#friend',
            renderstyle: 'json'
        }
    });
}

promptForFriends();