google_voice_number_poll.user.js

// ==UserScript==
// @name    Google Voice number poller
// @description When logged in to Google Voice, polls for a new number within a set of area codes
// @include https://www.google.com/voice*
// @namespace   http://pages.cs.wisc.edu/~markus/util
// @resource    jquery  http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js
// ==/UserScript==
// note on above: need to go to google.com/voice so as to be logged in ...
// probably?

/* Copyright (c) 2011--2013, Markus Peloquin <markus@cs.wisc.edu>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */

eval(GM_getResourceText('jquery'));

$(function(){

var config = {
    area_codes: [ 800, 808 ],
    notify_script_url:
        'http://hostname/cgi-bin/bluh.cgi',
    retry_interval: 900, // (seconds)
    send_email: true,
};

function hash_empty(hash)
{
    for (var k in hash) return false;
    return true;
}

function timestamp()
{
    function push2(a, n)
    {
        if (n < 10) a.push('0');
        a.push(n);
    }
    var now = new Date();
    var parts = [ now.getFullYear(), '-' ];
    push2(parts, now.getMonth()+1);
    parts.push('-');
    push2(parts, now.getDate());
    parts.push(' ');
    push2(parts, now.getHours());
    parts.push(':');
    push2(parts, now.getMinutes());
    parts.push(':');
    push2(parts, now.getSeconds());
    return parts.join('');
}

function check(ctx)
{
    var area_code = config.area_codes[ctx.i];
    $.ajax({
        url: 'https://www.google.com/voice/setup/searchnew/?ac=' +
        area_code + '&start=0',
        data: '',
        dataType: 'json',
        error: function (xhr, text_status, error_thrown) {
        alert('error checking area code ' + area_code + ': ' +
            text_status);
        // the script stops completely
        },
        success: function (data, text_status, xhr) {
        query_returned(data, text_status, xhr, ctx);
        },
    });
}

function query_returned(data, textStatus, xhr, ctx)
{
    // just some assertions
    if (!data) { alert('no data'); return }
    if (!data.JSON) { alert('no JSON'); return }
    if (data.JSON.num_matches == null) { alert('no num_matches'); return }

    var num_matches = Number(data.JSON.num_matches);
    if (num_matches)
        ctx.found[config.area_codes[ctx.i]] = num_matches;
    ctx.i++;

    if (ctx.i == config.area_codes.length) {
        console.info(timestamp(), data.JSON);
        if (!hash_empty(ctx.found))
            submit_results(ctx.found);
        else {
            // keep going
            ctx.i = 0;
            // try again in 15 minutes (as per default)
            setTimeout(function(){ check(ctx) },
                config.retry_interval * 1000);
            console.info(timestamp() + ': nope');
        }
    } else
        // try again without waiting
        check(ctx);
}

function submit_results(found)
{
    var pairs = [];
    for (var area_code in found)
        pairs.push(area_code + ',' + found[area_code]);
    var url = config.notify_script_url + '?found=' + pairs.join('+');

    console.info(timestamp() + ': found: ' + pairs.join(' -- '));
    console.info(url);

    if (config.send_email) {
        $.ajax({
            url: url,
            error: function (xhr, text_status, error_thrown) {
            console.info(timestamp() + ': expected error submitting results: ' + text_status);
            },
            success: function (data, text_status, xhr) {
            alert('all done; found: ' + found.join(' '));
            },
        });
    }

    // try again in 15 minutes (as per default)
    setTimeout(function(){ check({i: 0, found: {}}) },
        config.retry_interval * 1000);
}

setTimeout(function(){ check({i: 0, found: {}}) },
    config.retry_interval * 1000);

});