polygon-website-foss/api/private/core.php

544 lines
16 KiB
PHP

<?php
require 'config.php';
require 'PageBuilder.php';
require $_SERVER['DOCUMENT_ROOT'].'/api/private/vendors/Parsedown.php';
try
{
$pdo = new PDO('mysql:host='.SITE_CONFIG["database"]["host"].';dbname='.SITE_CONFIG["database"]["schema"], SITE_CONFIG["database"]["username"], SITE_CONFIG["database"]["password"]);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(PDOException $e)
{
die("critical error: failed to connect to database");
}
class api
{
static function respond($status, $success, $message)
{
die(json_encode(["status" => $status, "success" => $success, "message" => $message]));
}
static function lastAdminAction()
{
global $pdo;
if(!SESSION || SESSION && !SESSION["adminLevel"]){ return false; }
$userid = SESSION["userId"];
$query = $pdo->prepare("SELECT lastadminaction FROM users WHERE id = :uid AND lastadminaction + 5 > UNIX_TIMESTAMP()");
$query->bindParam(":uid", $userid, PDO::PARAM_INT);
$query->execute();
if($query->rowCount()){ self::respond(400, false, "Please wait ".(($query->fetchColumn()+5)-time())." seconds doing another admin action"); }
$query = $pdo->prepare("UPDATE users SET lastadminaction = UNIX_TIMESTAMP() WHERE id = :uid");
$query->bindParam(":uid", $userid, PDO::PARAM_INT);
$query->execute();
}
static function requireLogin()
{
if(!SESSION){ self::respond(400, false, "Not logged in"); }
if(!isset($_SERVER['HTTP_X_POLYGON_CSRF'])){ self::respond(400, false, "CSRF token not set"); }
if($_SERVER['HTTP_X_POLYGON_CSRF'] != SESSION["csrfToken"]){ self::respond(400, false, "Invalid CSRF token"); }
}
}
class general
{
static function time_elapsed($datetime, $full = false, $ending = true) //https://stackoverflow.com/questions/1416697/converting-timestamp-to-time-ago-in-php-e-g-1-day-ago-2-days-ago
{
if($datetime == "@"){ return "-"; }
$now = new DateTime;
$ago = new DateTime($datetime);
$diff = $now->diff($ago);
$diff->w = floor($diff->d / 7);
$diff->d -= $diff->w * 7;
$string = array(
'y' => 'year',
'm' => 'month',
'w' => 'week',
'd' => 'day',
'h' => 'hour',
'i' => 'minute',
's' => 'second',
);
foreach ($string as $k => &$v)
{
if ($diff->$k) { $v = $diff->$k . ' ' . $v . ($diff->$k > 1 ? 's' : ''); }
else { unset($string[$k]); }
}
if (!$full) $string = array_slice($string, 0, 1);
if($ending){ return $string ? implode(', ', $string) . ' ago' : 'just now'; }
return implode(', ', $string);
}
static function getIpInfo($ip)
{
return json_decode(file_get_contents("http://api.ipgeolocationapi.com/geolocate/$ip"));
}
static function filterText($text, $htmlspecialchars = true, $highlight = true)
{
if($htmlspecialchars){ $text = htmlspecialchars($text); }
if(SESSION && !SESSION["filter"]){ return $text; }
$filtertext = $highlight ? "<strong><em>baba booey</em></strong>" : "baba booey";
return str_ireplace([], $filtertext, $text);
}
static function getServerMemoryUsage()
{
// Get total physical memory (this is in bytes)
exec("wmic ComputerSystem get TotalPhysicalMemory", $outputTotalPhysicalMemory);
// Get free physical memory (this is in kibibytes!)
exec("wmic OS get FreePhysicalMemory", $outputFreePhysicalMemory);
// Find total value
foreach ($outputTotalPhysicalMemory as $line)
{
if ($line && preg_match("/^[0-9]+\$/", $line))
{
$memoryTotal = $line;
break;
}
}
// Find free value
foreach ($outputFreePhysicalMemory as $line)
{
if ($line && preg_match("/^[0-9]+\$/", $line))
{
$memoryFree = $line;
$memoryFree *= 1024; // convert from kibibytes to bytes
break;
}
}
return (object)["total" => $memoryTotal, "free" => $memoryFree];
}
static function getNiceFileSize($bytes, $binaryPrefix = false)
{
if ($binaryPrefix)
{
$unit=array('B','KiB','MiB','GiB','TiB','PiB');
if (!$bytes) return '0 ' . $unit[0];
return round($bytes/pow(1024,($i=floor(log($bytes,1024)))),2) .' '. (isset($unit[$i]) ? $unit[$i] : 'B');
}
else
{
$unit=array('B','KB','MB','GB','TB','PB');
if (!$bytes) return '0 ' . $unit[0];
return round($bytes/pow(1000,($i=floor(log($bytes,1000)))),2) .' '. (isset($unit[$i]) ? $unit[$i] : 'B');
}
}
static function getFolderSize($path)
{
$obj = new COM('scripting.filesystemobject');
if (is_object($obj))
{
$ref = $obj->getfolder($path);
return $ref->size;
}
else
{
return 'Failed to create COM Object';
}
}
static function replaceVars($string)
{
return str_replace("%site_name_secondary%", SITE_CONFIG["site"]["name_secondary"], str_replace("%site_name%", SITE_CONFIG["site"]["name"], $string) );
}
}
class users
{
static function getUserNameFromUid($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT username FROM users WHERE id = :userid");
$query->bindParam(":userid", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetchColumn();
}
static function getUidFromUserName($userName)
{
global $pdo;
$query = $pdo->prepare("SELECT id FROM users WHERE username = :username");
$query->bindParam(":username", $userName, PDO::PARAM_STR);
$query->execute();
return $query->fetchColumn();
}
static function getUserInfoFromUid($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM users WHERE id = :userid");
$query->bindParam(":userid", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getUserInfoFromUserName($username)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$query->bindParam(":username", $username, PDO::PARAM_STR);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getUserAvatar($userId)
{
return "https://pizzaboxer.xyz/renderserver/renders/jobId512-420x420.png";
}
static function checkIfFriends($userId1, $userId2, $status = false)
{
global $pdo;
if($status === false)
{
$query = $pdo->prepare("SELECT * FROM friends WHERE :uid1 IN (requesterId, receiverId) AND :uid2 IN (requesterId, receiverId) AND NOT status = 2");
}
else
{
$query = $pdo->prepare("SELECT * FROM friends WHERE :uid1 IN (requesterId, receiverId) AND :uid2 IN (requesterId, receiverId) AND status = :status");
$query->bindParam(":status", $status, PDO::PARAM_INT);
}
$query->bindParam(":uid1", $userId1, PDO::PARAM_INT);
$query->bindParam(":uid2", $userId2, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getFriendCount($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT COUNT(*) FROM friends WHERE :uid IN (requesterId, receiverId) AND status = 1");
$query->bindParam(":uid", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetchColumn();
}
static function getFriendRequestCount($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT COUNT(*) FROM friends WHERE :uid = receiverId AND status = 0");
$query->bindParam(":uid", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetchColumn();
}
static function getForumPostCount($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT (SELECT COUNT(*) FROM polygon.forum_threads WHERE author = :id AND NOT deleted) + (SELECT COUNT(*) FROM polygon.forum_replies WHERE author = :id) AS totalPosts");
$query->bindParam(":id", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetchColumn();
}
static function updatePing()
{
global $pdo;
if(!SESSION){ return false; }
$userId = SESSION["userId"];
$sessionkey = $_COOKIE['polygon_session'];
$query = $pdo->prepare("UPDATE users SET lastonline = UNIX_TIMESTAMP() WHERE id = :id");
$query->bindParam(":id", $userId, PDO::PARAM_INT);
if(!$sessionkey){ return $query->execute(); }
$sessquery = $pdo->prepare("UPDATE sessions SET lastonline = UNIX_TIMESTAMP() WHERE sessionKey = :key");
$sessquery->bindParam(":key", $sessionkey, PDO::PARAM_STR);
return $sessquery->execute() && $query->execute();
}
static function updateCurrencyStipend()
{
global $pdo;
if(!SESSION){ return false; }
$userId = SESSION["userId"];
if(SESSION["nextCurrencyStipend"] > time()){ return true; } //not yet
$query = $pdo->prepare("UPDATE users SET currency = currency + 10, nextCurrencyStipend = UNIX_TIMESTAMP()+86400 WHERE id = :uid");
$query->bindParam(":uid", $userId, PDO::PARAM_INT);
return $query->execute();
}
static function getOnlineStatus($userId)
{
global $pdo;
$response = ["online" => false, "text" => false];
$query = $pdo->prepare("SELECT lastonline FROM users WHERE id = :id");
$query->bindParam(":id", $userId, PDO::PARAM_INT);
$query->execute();
$time = $query->fetchColumn();
if(!$query->rowCount()){ return $response; }
if($time+30 > time()){ $response["online"] = true; $response["text"] = "Website"; }
else{ $response["text"] = ($time + 604800) > time() ? general::time_elapsed('@'.$time) : date('j/n/Y', $time); }
// \a\t g:i:s A
return $response;
}
static function getUsersOnline()
{
global $pdo;
$query = $pdo->query("SELECT COUNT(*) FROM users WHERE lastonline+35 > UNIX_TIMESTAMP()");
$query->execute();
return $query->fetchColumn();
}
static function requireLogin()
{
if(!SESSION){ die(header("Location: /login?ReturnUrl=".urlencode($_SERVER['REQUEST_URI']))); }
}
static function requireLoggedOut()
{
if(SESSION){ die(header("Location: /home")); }
}
static function getUserModeration($userId)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM bans WHERE userId = :id AND NOT isDismissed ORDER BY id DESC LIMIT 1");
$query->bindParam(":id", $userId, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function undoUserModeration($userId, $admin = false)
{
global $pdo;
if($admin)
{
$query = $pdo->prepare("UPDATE bans SET isDismissed = 1 WHERE userId = :id AND NOT isDismissed");
}
else
{
$query = $pdo->prepare("UPDATE bans SET isDismissed = 1 WHERE userId = :id AND NOT isDismissed AND NOT banType = 3 AND timeEnds < UNIX_TIMESTAMP()");
}
$query->bindParam(":id", $userId, PDO::PARAM_INT);
return $query->execute();
}
static function logStaffAction($action)
{
if(!SESSION || SESSION && !SESSION["adminLevel"]){ return false; }
global $pdo;
$uid = SESSION["userId"];
$query = $pdo->prepare("INSERT INTO stafflogs (time, adminId, action) VALUES (UNIX_TIMESTAMP(), :uid, :action)");
$query->bindParam(":uid", $uid, PDO::PARAM_INT);
$query->bindParam(":action", $action, PDO::PARAM_STR);
return $query->execute();
}
}
class forum
{
static function getThreadInfo($id)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM forum_threads WHERE id = :id");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getReplyInfo($id)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM forum_replies WHERE id = :id");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getThreadReplies($id)
{
global $pdo;
$query = $pdo->prepare("SELECT COUNT(*) FROM forum_replies WHERE threadId = :id");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
$replies = $query->fetchColumn();
return $replies ? $replies : '-';
}
static function getSubforumInfo($id)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM forum_subforums WHERE id = :id");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
return $query->fetch(PDO::FETCH_OBJ);
}
static function getSubforumThreadCount($id, $includeReplies = false)
{
global $pdo;
$query = $pdo->prepare("SELECT COUNT(*) FROM forum_threads WHERE subforumid = :id");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
$threads = $query->fetchColumn();
if(!$includeReplies){ return $threads ? $threads : '-'; }
$query = $pdo->prepare("SELECT COUNT(*) from forum_replies WHERE threadId IN (SELECT id FROM forum_threads WHERE subforumid = :id)");
$query->bindParam(":id", $id, PDO::PARAM_INT);
$query->execute();
$total = $threads + $query->fetchColumn();
return $total ?? '-';
}
}
class session //most of the session code here comes from my old roblonium code; it works surprisingly well
{
static function createSession($userId)
{
global $pdo;
keygen:
$sessionkey = bin2hex(random_bytes(128));
$query = $pdo->prepare("SELECT COUNT(*) FROM sessions WHERE sessionKey = :sesskey");
$query->bindParam(":sesskey", $sessionkey, PDO::PARAM_STR);
$query->execute();
if($query->fetchColumn()){ goto keygen; } //if a session with the same key already exists then repeat key generation process
$csrf = bin2hex(random_bytes(32));
$create = $pdo->prepare("INSERT INTO sessions (`sessionKey`, `userAgent`, `userId`, `loginIp`, `created`, `lastonline`, `csrf`) VALUES (:sesskey, :useragent, :userid, :ip, UNIX_TIMESTAMP(), UNIX_TIMESTAMP(), :csrf)");
$create->bindParam(":sesskey", $sessionkey, PDO::PARAM_STR);
$create->bindParam(":useragent", $_SERVER['HTTP_USER_AGENT'], PDO::PARAM_STR);
$create->bindParam(":userid", $userId, PDO::PARAM_INT);
$create->bindParam(":ip", $_SERVER['REMOTE_ADDR'], PDO::PARAM_STR);
$create->bindParam(":csrf", $csrf, PDO::PARAM_STR);
$create->execute();
setcookie("polygon_session", $sessionkey, time()+(157700000*3), "/"); //expires in 5 years
}
static function destroySession($sesskey)
{
global $pdo;
$query = $pdo->prepare("UPDATE sessions SET valid = 0 WHERE sessionKey = :sesskey");
$query->bindParam(":sesskey", $sesskey, PDO::PARAM_STR);
return $query->execute();
}
static function invalidateSession($sesskey)
{
setcookie("polygon_session", $sesskey, 1, "/");
die(header("Refresh: 0"));
}
static function getSessionData($sessionkey, $strict = true)
{
global $pdo;
$query = $pdo->prepare("SELECT * FROM sessions WHERE sessionKey = :sesskey AND valid AND lastonline+432000 > UNIX_TIMESTAMP()");
$query->bindParam(":sesskey", $sessionkey, PDO::PARAM_STR);
$query->execute();
if(!$query->rowCount()){ return false; }
$row = $query->fetch(PDO::FETCH_OBJ);
if($row->created+(157700000*3) < time()){ return false; }
if($strict && $row->userAgent != $_SERVER['HTTP_USER_AGENT']){ return false; }
if($row->loginIp != $_SERVER['REMOTE_ADDR']){ return false; }
//these last two checks in particular should help to stop potential cookie stealing attacks
return $row;
}
}
if(isset($_COOKIE['polygon_session']))
{
$session = session::getSessionData($_COOKIE['polygon_session']);
if($session)
{
$userInfo = users::getUserInfoFromUid($session->userId);
define('SESSION',
[
"userName" => $userInfo->username,
"userId" => $userInfo->id,
"friendRequests" => users::getFriendRequestCount($userInfo->id),
"status" => $userInfo->status,
"currency" => $userInfo->currency,
"nextCurrencyStipend" => $userInfo->nextCurrencyStipend,
"adminLevel" => $userInfo->adminlevel,
"filter" => $userInfo->filter,
"pageAnim" => $userInfo->pageanim,
"csrfToken" => $session->csrf
]);
if(users::getUserModeration(SESSION["userId"]) && !isset($bypassModeration))
{
die(header("Location: /moderation"));
}
else
{
users::updatePing();
users::updateCurrencyStipend();
}
}
else
{
session::destroySession($_COOKIE['polygon_session']);
session::invalidateSession($_COOKIE['polygon_session']);
define('SESSION', false);
}
}
else
{
define('SESSION', false);
}