Всякие интересные штучки для WEB-разработчика

Вы давно хотели увидеть исходный код одного из самых успешных проектов Веб 2.0? Ну вот, сегодня как раз тот день, когда вы можете посмотреть на работу «лучших PHP-программистов мира».

Из-за небольшого глюка на сервере Facebook исходный код первой страницы этого социального сервиса стал виден небольшому количеству пользователей. Самые умные из них сделали копию, так что сейчас исходники выложены на всеобщее обозрение.

Компания Facebook уже подтвердила утечку информации, так что это настоящий код, а не подделка.
 
Напомню так же, что ещё два хеджевых фонда из Нью-Йорка подключились к сделке Microsoft и Facebook. Они вложили в социальную сеть ещё $500 млн, то есть в два раза больше, чем Microsoft, и, что самое главное, инвестиции сделаны из расчёта той же самой рыночной оценки проекта в $15 млрд.

Дополнительные полмиллиарда инвестиций, которые сделаны без всяких дополнительных условий, доказывают, что реальная стоимость Facebook на сегодняшний день действительно составляет $15 млрд.

<?php
include_once $_SERVER['PHP_ROOT'].'/html/init.php';
include_once $_SERVER['PHP_ROOT'].'/lib/home.php';
include_once $_SERVER['PHP_ROOT'].'/lib/requests.php';
include_once $_SERVER['PHP_ROOT'].'/lib/feed/newsfeed.php';
include_once $_SERVER['PHP_ROOT'].'/lib/poke.php';
include_once $_SERVER['PHP_ROOT'].'/lib/share.php';
include_once $_SERVER['PHP_ROOT'].'/lib/orientation.php';
include_once $_SERVER['PHP_ROOT'].'/lib/feed/newsfeed.php';
include_once $_SERVER['PHP_ROOT'].'/lib/mobile/register.php';
include_once $_SERVER['PHP_ROOT'].'/lib/forms_lib.php';
include_once $_SERVER['PHP_ROOT'].'/lib/contact_importer/contact_importer.php';
include_once $_SERVER['PHP_ROOT'].'/lib/feed/util.php';
include_once $_SERVER['PHP_ROOT'].'/lib/hiding_prefs.php';
include_once $_SERVER['PHP_ROOT'].'/lib/abtesting.php';
include_once $_SERVER['PHP_ROOT'].'/lib/friends.php';
include_once $_SERVER['PHP_ROOT'].'/lib/statusupdates.php';

// lib/display/feed.php has to be declared here for scope issues.
// This keeps display/feed.php cleaner and easier to understand.
include_once $_SERVER['PHP_ROOT'].'/lib/display/feed.php';
include_once $_SERVER['PHP_ROOT'].'/lib/monetization_box.php';

// require login
$user = require_login();
print_time('require_login');
param_request(array('react' => $PARAM_EXISTS));

// Check and fix broken emails
// LN - disabling due to excessive can_see dirties and sets when enabled.
//check_and_fix_broken_emails($user);

// migrate AIM screenname from profile to screenname table if needed
migrate_screenname($user);

// homepage announcement variables
$HIDE_ANNOUNCEMENT_BIT = get_site_variable('HIDE_ANNOUNCEMENT_BIT');
$HIDE_INTRO_BITMASK = get_site_variable('HIDE_INTRO_BITMASK');

// redirects
if (is_sponsor_user())
    redirect('bizhome.php', 'www');

include_once $_SERVER['PHP_ROOT'].'/lib/mesg.php';
include_once $_SERVER['PHP_ROOT'].'/lib/invitetool.php';
include_once $_SERVER['PHP_ROOT'].'/lib/grammar.php';
include_once $_SERVER['PHP_ROOT'].'/lib/securityq.php';
include_once $_SERVER['PHP_ROOT'].'/lib/events.php';
include_once $_SERVER['PHP_ROOT'].'/lib/rooster/stories.php';

// todo: password confirmation redirects here (from html/reset.php),
// do we want a confirmation message?

param_get_slashed(array(
    'feeduser' => $PARAM_INT, //debug: gets feed for user here
    'err' => $PARAM_STRING, // returning from a failed entry on an orientation form
    'error' => $PARAM_STRING, // an error can also be here because the profile photo upload code is crazy
    'ret' => $PARAM_INT,
    'success' => $PARAM_INT, // successful profile picture upload
    'jn' => $PARAM_INT, // joined a network for orientation
    'np' => $PARAM_INT, // network pending (for work/address network)
    'me' => $PARAM_STRING, // mobile error
    'mr' => $PARAM_EXISTS, // force mobile reg view
    'mobile' => $PARAM_EXISTS, // mobile confirmation code sent
    'jif' => $PARAM_EXISTS, // just imported friends
    'ied' => $PARAM_STRING, // import email domain
    'o' => $PARAM_EXISTS, // first time orientation, passed on confirm
    'verified' => $PARAM_EXISTS)
); // verified mobile phone

param_post(array(
    'leave_orientation' => $PARAM_EXISTS,
    'show_orientation' => $PARAM_INT, // show an orientation step
    'hide_orientation' => $PARAM_INT)
); // skip an orientation step

// homepage actions
$show_reactivated_message = $req_react && validate_expiring_hash($req_react, $GLOBALS['url_md5key']);
tpl_set('show_reactivated_message', $show_reactivated_message);

// upcoming events
events_check_future_events($user); // make sure big tunas haven't moved around
$upcoming_events = events_get_imminent_for_user($user);

// this is all stuff that can be fetched together!
$upcoming_events_short = array();
obj_multiget_short(array_keys($upcoming_events), true, $upcoming_events_short);
$new_pokes = 0;

// only get the next N pokes for display
// where N is set in the dbget to avoid caching issues
$poke_stats = get_num_pokes($user);
get_next_pokes($user, true, $new_pokes);
$poke_count = $poke_stats['unseen'];

$targeted_data = array();
home_get_cache_targeted_data($user, true, $targeted_data);

$announcement_data = array();
home_get_cache_announcement_data($user, true, $announcement_data);

$orientation = 0;
orientation_get_status($user, true, $orientation);

$short_profile = array();
profile_get_short($user, true, $short_profile);

// pure priming stuff
privacy_get_network_settings($user, true);
$presence = array();
mobile_get_presence_data($user, true, $presence);
feedback_get_event_weights($user, true);

// Determine if we want to display the feed intro message
$intro_settings = 0;
user_get_hide_intro_bitmask($user, true, $intro_settings);
$user_friend_finder = true;
contact_importer_get_used_friend_finder($user, true, $used_friend_finder);
$all_requests = requests_get_cache_data($user);

// FIXME?: is it suboptimal to call this both in requests_get_cache_data and here?
$friends_status = statusupdates_get_recent($user, null, 3);
memcache_dispatch(); // populate cache data

// Merman's Admin profile always links to the Merman's home
if (user_has_obj_attached($user))
    redirect('mhome.php', 'www');

if (is_array($upcoming_events))
    foreach ($upcoming_events as $event_id => $data)
        $upcoming_events[$event_id]['name'] = txt_set($upcoming_events_short[$event_id]['name']);

tpl_set('upcoming_events', $upcoming_events);

// disabled account actions
$disabled_warning = ((IS_DEV_SITE || IS_QA_SITE) && is_disabled_user($user));
tpl_set('disabled_warning', $disabled_warning);

// new pokes (no more messages here, they are in the top nav!)
if (!user_is_guest($user)) {
    tpl_set('poke_count', $poke_count);
    tpl_set('pokes', $new_pokes);
}

// get announcement computations
tpl_set('targeted_data', $targeted_data);
tpl_set('announcement_data', $announcement_data);

// birthday notifications
tpl_set('birthdays', $birthdays = user_get_birthday_notifications($user, $short_profile));
tpl_set('show_birthdays', $show_birthdays = (count($birthdays) || !$orientation));

// user info
tpl_set('first_name', user_get_first_name(txt_set($short_profile['id'])));
tpl_set('user', $user);

// decide if there are now any requests to show
$show_requests = false;
foreach ($all_requests as $request_category)
    if ($request_category) {
        $show_requests = true;
        break;
    }

tpl_set('all_requests', $show_requests? $all_requests: null);

$permissions = privacy_get_reduced_network_permissions($user, $user);

// status
$user_info = array('user' => $user,
    'firstname' => user_get_first_name($user),
    'see_all' => '/statusupdates/?ref=hp',
    'profile_pic' => make_profile_image_src_direct($user, 'thumb'),
    'square_pic' => make_profile_image_src_direct($user, 'square')
);

if (!empty($presence) && $presence['status_time'] > (time() - 60*60*24*7)) {
    $status = array('message' => txt_set($presence['status']),
    'time' => $presence['status_time'],
    'source' => $presence['status_source']);
} else
    $status = array('message' => null, 'time' => null, 'source' => null);

tpl_set('user_info', $user_info);

tpl_set('show_status', $show_status = !$orientation);
tpl_set('status', $status);
tpl_set('status_custom', $status_custom = mobile_get_status_custom($user));
tpl_set('friends_status', $friends_status);

// orientation
if ($orientation) {
    $ondr = ($post_leave_orientation)? 2: (orientation_eligible_exit(array('uid'=> $user)) == 2)? 1: 0; 

    if ($ondr) {
        orientation_update_status($user, $orientation, 1);
        notification_notify_exit_orientation($user);
        dirty_user($user);
        redirect('home.php');
    }
}

// timezone - outside of stealth, update user's timezone if necessary
$set_time = !user_is_alpha($user, 'stealth');
tpl_set('timezone_autoset', $set_time);
if ($set_time) {
    $daylight_savings = get_site_variable('DAYLIGHT_SAVINGS_ON');
    tpl_set('timezone', $short_profile['timezone'] - ($daylight_savings? 4: 5));
}

// set next step if we can
if (!$orientation)
    user_set_next_step($user, $short_profile);

// note: don't make this an else with the above statement because then
// no news feed stories will be fetched if they're exiting orientation
if ($orientation) {
    extract(orientation_get_const());

    require_js('js/dynamic_dialog.js');
    require_js('js/suggest.js');
    require_js('js/typeahead_ns.js');
    require_js('js/suggest.js');
    require_js('js/editregion.js');
    require_js('js/orientation.js');
    require_css('css/typeahead.css');
    require_css('css/editor.css');

    if ($post_hide_orientation && $post_hide_orientation <= $ORIENTATION_MAX) {
        $orientation['orientation_bitmask'] |= ($post_hide_orientation * $ORIENTATION_SKIPPED_MODIFIER);
        orientation_update_status($user, $orientation);
    } else if ($post_show_orientation && $post_show_orientation <= $ORIENTATION_MAX) {
        $orientation['orientation_bitmask'] &= ~($post_show_orientation * $ORIENTATION_SKIPPED_MODIFIER);
        orientation_update_status($user, $orientation);
    }

    $stories = orientation_get_stories($user, $orientation);
    switch ($get_err) {
    case $ORIENTATION_ERR_COLLEGE:
        $temp = array(); // the affil_retval_msg needs some parameters won't be used
        $stories[$ORIENTATION_NETWORK]['failed_college']=affil_retval_msg($get_ret, $temp, $temp);
        break;
    case $ORIENTATION_ERR_CORP:
        $temp = array();
        // We special case the network not recognized error here, because affil_retval_msg is retarded.
        $stories[$ORIENTATION_NETWORK]['failed_corp'] = ($get_ret == 70)?
                'The email you entered did not match any of our supported networks. ' .
        'Click <a href="/networks/networks.php?view=companies">here</a> to see our supported list. ' .
        'Go <a href="help.php?tab=suggest">here</a> to suggest your network for the future.':
                affil_retval_msg($get_ret, $temp, $temp);
        break;
    }

    // photo upload
    if ($get_error)
        $stories[$ORIENTATION_ORDER[$ORIENTATION_PROFILE]]['upload_error'] =
                pic_get_error_text($get_error);
    else if ($get_success == 1)
        $stories[$ORIENTATION_ORDER[$ORIENTATION_PROFILE]]['uploaded_pic'] = true;
    else if ($get_jn) { // join network success
        $stories[$ORIENTATION_ORDER[$ORIENTATION_NETWORK]]['joined'] = array(
            'id' => $get_jn, 'name' => network_get_name($get_jn)
        );
    // network join pending
    } else if ($get_np) {
        $stories[$ORIENTATION_ORDER[$ORIENTATION_NETWORK]]['join_pending'] = array(
        'id' => $get_np,
        'email' => get_affil_email_conf($user, $get_np),
        'network' => network_get_name($get_np));
    // just imported friend confirmation
    } else if ($get_jif) {
        $stories[$ORIENTATION_ORDER[$ORIENTATION_NETWORK]]['just_imported_friends'] = true;
        $stories[$ORIENTATION_ORDER[$ORIENTATION_NETWORK]]['domain'] = $get_ied;
    }

    // Mobile web API params
    if ($get_mobile) {
        $stories[$ORIENTATION_ORDER[$ORIENTATION_MOBILE]]['sent_code'] = true;
        $stories[$ORIENTATION_ORDER[$ORIENTATION_MOBILE]]['view'] = 'confirm';
    }
    if ($get_verified)
        $stories[$ORIENTATION_ORDER[$ORIENTATION_MOBILE]]['verified'] = true;
    if ($get_me)
        $stories[$ORIENTATION_ORDER[$ORIENTATION_MOBILE]]['error'] = $get_me;
    if ($get_mr)
        $stories[$ORIENTATION_ORDER[$ORIENTATION_MOBILE]]['view'] = 'register';

    if (orientation_eligible_exit($orientation))
        tpl_set('orientation_show_exit', true);

     tpl_set('orientation_stories', $stories);

    //if in orientation, we hide all feed intros (all 1's in bitmask)
    $intro_settings = -1;
}

tpl_set('orientation', $orientation);

// Rooster Stories
if (!$orientation && ((get_site_variable('ROOSTER_ENABLED') == 2)
        || (get_site_variable('ROOSTER_DEV_ENABLED') == 2))) {
    $rooster_story_count = get_site_variable('ROOSTER_STORY_COUNT');
    if (!isset($rooster_story_count))
        $rooster_story_count = 2; // Set default if something is wrong with the sitevar

    $rooster_stories = rooster_get_stories($user, $rooster_story_count, $log_omissions = true);
    if (!empty($rooster_stories) && !empty($rooster_stories['stories'])) {
        // Do page-view level logging here
        foreach($rooster_stories['stories'] as $story)
            rooster_log_action($user, $story, ROOSTER_LOG_ACTION_VIEW);
        tpl_set('rooster_stories', $rooster_stories);
    }
}

// set the variables for the home announcement code
$hide_announcement_tpl = ($intro_settings | $HIDE_INTRO_BITMASK) & $HIDE_ANNOUNCEMENT_BIT;

// if on qa/dev site, special rules
$HIDE_INTRO_ON_DEV = get_site_variable('HIDE_INTRO_ON_DEV');
if ((IS_QA_SITE || IS_DEV_SITE) && !$HIDE_INTRO_ON_DEV)
    $hide_announcement_tpl = 0;

tpl_set('hide_announcement', $hide_announcement_tpl);
if ($is_candidate = is_candidate_user($user))
    tpl_set('hide_announcement', false);

$home_announcement_tpl = !$hide_announcement_tpl || $is_candidate ? home_get_announcement_info($user): 0;
tpl_set('home_announcement', $home_announcement_tpl);
tpl_set('hide_announcement_bit', $HIDE_ANNOUNCEMENT_BIT);

$show_friend_finder = !$orientation && contact_importer_enabled($user) &&
        !user_get_hiding_pref($user, 'home_friend_finder');
tpl_set('show_friend_finder', $show_friend_finder);

if ($show_friend_finder && (user_get_friend_count($user) > 20)) {
    tpl_set('friend_finder_hide_options', array('text'=>'close',
    'onclick'=>"return clearFriendFinder()"));
} else
    tpl_set('friend_finder_hide_options', null);

$account_info = user_get_account_info($user);
$account_create_time = $account_info['time'];

tpl_set('show_friend_finder_top', !$used_friend_finder);
tpl_set('user', $user);

// MONETIZATION BOX
$minimize_monetization_box = user_get_hiding_pref($user, 'home_monetization');
$show_monetization_box = (!$orientation && get_site_variable('HOMEPAGE_MONETIZATION_BOX'));
tpl_set('show_monetization_box', $show_monetization_box);
tpl_set('minimize_monetization_box', $minimize_monetization_box);

if ($show_monetization_box) {
    $monetization_box_data = monetization_box_user_get_data($user);
    txt_set('monetization_box_data', $monetization_box_data);
}

// ORIENTATION
if ($orientation) {
    $network_ids = id_get_networks($user);
    $network_names = multiget_network_name($network_ids);
    $in_corp_network = in_array($GLOBALS['TYPE_CORP'], array_map('extract_network_type', $network_ids));
    $show_corp_search = $in_corp_network ||
    get_age(user_get_basic_info_attr($user, 'birthday')) >= 21;
    $pending_hs = is_hs_pending_user($user);
    $hs_id = null;
    $hs_name = null;

    if ($pending_hs)
        foreach (id_get_pending_networks($user) as $network)
            if (extract_network_type($network['network_key']) == $GLOBALS['TYPE_HS']) {
                $hs_id = $network['network_key'];
                $hs_name = network_get_name($hs_id);
                break;
            }

    // $orientation_people = orientation_get_friend_and_inviter_ids($user);
    // wc: don't show inviters for now
    $orientation_people = array(
        'friends' => user_get_all_friends($user),
                'pending' => array_keys(user_get_friend_requests($user)), 'inviters'=>array(),
    );
    $orientation_info = array_merge(
        $orientation_people, array('network_names' => $network_names,
                'show_corp_search' => $show_corp_search,
                'pending_hs' => array('hs_id'=>$hs_id, 'hs_name'=>$hs_name), 'user' => $user,)
    );

    tpl_set('orientation_info', $orientation_info);
    tpl_set('simple_orientation_first_login', $get_o); // unused right now
}

// Roughly determine page length for ads
// first, try page length using right-hand panel
$ads_page_length_data = 3 + // 3 for profile pic + next step
    ($show_friend_finder? 1: 0) +
    ($show_status? ($status_custom? count($friends_status): 0): 0) +
    ($show_monetization_box? 1: 0) +
    ($show_birthdays? count($birthdays): 0) +
    count($new_pokes);

// page length using feed stories
if ($orientation)
    $ads_page_length_data = max($ads_page_length_data, count($stories) * 5);

tpl_set('ads_page_length_data', $ads_page_length_data);

$feed_stories = null;

// if they're not in orientation they get other cool stuff
if (!$orientation) {
    // ad_insert: the ad type to try to insert for the user
    // (0 if we don't want to try an insert)
    $ad_insert = get_site_variable('FEED_ADS_ENABLE_INSERTS');

    $feed_off = false;

    if (check_super($user) && $get_feeduser)
        $feed_stories = user_get_displayable_stories($get_feeduser, 0, null, $ad_insert);
    else if (can_see($user, $user, 'feed'))
        $feed_stories = user_get_displayable_stories($user, 0, null, $ad_insert);
    else
        $feed_off = true;

    // Friend's Feed Selector - Requires dev.php constant
    if (is_friendfeed_user($user)) {
        $friendfeed = array();
        $friendfeed['feeduser'] = $get_feeduser;
        $friendfeed['feeduser_name'] = user_get_name($get_feeduser);
        $friendfeed['friends'] = user_get_all_friends($user);
        tpl_set('friendfeed', $friendfeed);
    }

    $feed_stories = feed_adjust_timezone($user, $feed_stories);
    tpl_set('feed_off', $feed_off? redirect('privacy.php?view=feeds', null, false): false);
}

tpl_set('feed_stories', $feed_stories);

render_template($_SERVER['PHP_ROOT'].'/html/home.phpt');

Стырено отсюда HABR