gistfile1.js

function (newDoc, oldDoc, cdbuser)
{
    
var email_regex = new RegExp('^([a-zA-Z0-9_\\-.]+)@(([a-zA-Z0-9\\-]+\\.)+)([a-zA-Z]{2,9})$');

function require(beTrue)
{
    if(typeof(beTrue) == 'array')
    {
        for(testidx in beTrue){
            var test = beTrue[testidx];
            if (!test.test) throw({forbidden: test.msg});
        }
    }
    else
    {
        if (!beTrue.test) throw({forbidden: beTrue.msg});
    }
}

function keys(a)
{
    var ret = [];
    if (typeof(a) == 'object')
    {
        for (idx in a)
        {
            ret.push(idx);
        }
    }
    
    return ret;
}

function equals(a, b)
{
    if(typeof(a) == 'object' && typeof(b) == 'object')
    {
        if (keys(a).length != keys(b).length)
        {
            return false;
        }
        
        for (idx in a)
        {
            if (!equals(a[idx], b[idx]))
            {
                return false;
            }
        }
        
        return true;
    }
    else
    {
        return a == b;
    }
}
    
function preserve_history(newer, older)
{
    for (idx in older)
    {
        if (!equals(newer[idx], older[idx]))
        {
            return false;
        }
    }
    
    return true;
}



    if (newDoc.type == 'player')
    {
        require([
            {test: (!oldDoc || oldDoc.type == newDoc.type), 
                    msg: 'You may not change the type.'},
            {test: (!oldDoc || oldDoc.created_at == newDoc.created_at), 
                    msg: 'You may not change the creation timestamp.'},
            {test: (newDoc._id == newDoc.username),
                    msg: 'Username must match _id.'},
            {test: (newDoc.pending_email_change == {} || 
                    newDoc.pending_email_change.email.match(email_regex)),
                    msg: 'Pending e-mail is not valid.'},
            {test: (newDoc.email_history[newDoc.email_history.length - 1].email.match(email_regex)}
            {test: (!oldDoc || preserve_history(newDoc.email_history, oldDoc.email_history)),
                    msg: 'You must preserve email history.'},
            {test: (!oldDoc || preserve_history(newDoc.name_history, oldDoc.name_history)),
                    msg: 'You must preserve name history.'}           
        ]);
            
    }
}