[irc/unrealircd/unrealircd-webpanel.git] / plugins / sql_auth / sql_auth.php

<?php

require_once "SQL/sql.php";
require_once "SQL/settings.php";

class sql_auth
{
	public $name = "SQLAuth";
	public $author = "Valware";
	public $version = "1.0";
	public $description = "Provides a User Auth and Management Panel with an SQL backend";
	public $email = "v.a.pond@outlook.com";

	function __construct()
	{
		self::create_tables();
		Hook::func(HOOKTYPE_PRE_HEADER, 'sql_auth::session_start');
		Hook::func(HOOKTYPE_FOOTER, 'sql_auth::add_footer_info');
		Hook::func(HOOKTYPE_USER_LOOKUP, 'sql_auth::get_user');
		Hook::func(HOOKTYPE_USERMETA_ADD, 'sql_auth::add_usermeta');
		Hook::func(HOOKTYPE_USERMETA_DEL, 'sql_auth::del_usermeta');
		Hook::func(HOOKTYPE_USERMETA_GET, 'sql_auth::get_usermeta');
		Hook::func(HOOKTYPE_USER_CREATE, 'sql_auth::user_create');
		Hook::func(HOOKTYPE_GET_USER_LIST, 'sql_auth::get_user_list');
		Hook::func(HOOKTYPE_USER_DELETE, 'sql_auth::user_delete');

		if (defined('SQL_DEFAULT_USER')) // we've got a default account
		{
			$lkup = new PanelUser(SQL_DEFAULT_USER['username']);

			if (!$lkup->id) // doesn't exist, add it with full privileges
			{
				$user = [];
				$user['user_name'] = SQL_DEFAULT_USER['username'];
				$user['user_pass'] = SQL_DEFAULT_USER['password'];
				$user['err'] = "";
				create_new_user($user);
			}
			$lkup = new PanelUser(SQL_DEFAULT_USER['username']);
			if (!user_can($lkup, PERMISSION_MANAGE_USERS))
				$lkup->add_permission(PERMISSION_MANAGE_USERS);
		}
	}


	public static function add_footer_info($empty)
	{
		if (!($user = unreal_get_current_user())->id)
			return;

		else {
			echo "<code>Admin Panel v" . WEBPANEL_VERSION . "</code>";
		}
	}

	/* pre-Header hook */
	public static function session_start($n)
	{
		if (!isset($_SESSION))
		{
			session_set_cookie_params(3600);
			session_start();
		}
		if (!isset($_SESSION['id']) || empty($_SESSION))
		{
			$secure = ($_SERVER['HTTPS'] == 'on') ? "https://" : "http://";
			$current_url = "$secure$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
			$tok = split($_SERVER['SCRIPT_FILENAME'], "/");
			if ($check = security_check() && $tok[count($tok) - 1] !== "error.php") {
				header("Location: " . BASE_URL . "plugins/sql_auth/error.php");
				die();
			}
			header("Location: ".BASE_URL."login/?redirect=".urlencode($current_url));
			die();
		}
		else
		{
			if (!unreal_get_current_user()->id) // user no longer exists
			{
				session_destroy();
				header("Location: ".BASE_URL."login");
				die();
			}
			// you'll be automatically logged out after one hour of inactivity
		}
	}

	/**
	 * Create the tables we'll be using in the SQLdb
	 * @return void
	 */
	public static function create_tables()
	{
		$conn = sqlnew();
		$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "users (
			user_id int AUTO_INCREMENT NOT NULL,
			user_name VARCHAR(255) NOT NULL,
			user_pass VARCHAR(255) NOT NULL,
			user_email VARCHAR(255),
			user_fname VARCHAR(255),
			user_lname VARCHAR(255),
			user_bio VARCHAR(255),
			created VARCHAR(255),
			PRIMARY KEY (user_id)
		)");

		/**
		 * Patch for beta users
		 * This adds the email column to existing tables without it
		*/
		$columns = $conn->query("SHOW COLUMNS FROM " . SQL_PREFIX . "users");
		$column_names = array();
		$c = $columns->fetchAll();

		foreach($c as $column) {
			$column_names[] = $column['Field'];
		}
		$column_exists = in_array("user_email", $column_names);
		if (!$column_exists) {
			$conn->query("ALTER TABLE " . SQL_PREFIX . "users ADD COLUMN user_email varchar(255)");
		}

		/**
		 * Another patch for beta users
		 * This changes the size of the meta_value so we can store more
		 */
		$columns = $conn->query("SHOW COLUMNS FROM ".SQL_PREFIX."user_meta");
		$c = $columns->fetchAll();
		if (!empty($c))
			$conn->query("ALTER TABLE `".SQL_PREFIX."user_meta` CHANGE `meta_value` `meta_value` VARCHAR(5000) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NULL DEFAULT NULL");


		$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "user_meta (
			meta_id int AUTO_INCREMENT NOT NULL,
			user_id int NOT NULL,
			meta_key VARCHAR(255) NOT NULL,
			meta_value VARCHAR(255),
			PRIMARY KEY (meta_id)
		)");
		$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "auth_settings (
			id int AUTO_INCREMENT NOT NULL,
			setting_key VARCHAR(255) NOT NULL,
			setting_value VARCHAR(255),
			PRIMARY KEY (id)
		)");
		$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "fail2ban (
			id int AUTO_INCREMENT NOT NULL,
			ip VARCHAR(255) NOT NULL,
			count VARCHAR(255),
			PRIMARY KEY (id)
		)");
		new AuthSettings();
	}

	/* We convert $u with a full user as an object ;D*/
	public static function get_user(&$u)
	{
		$id = $u['id'];
		$name = $u['name'];
		$conn = sqlnew();

		if ($id)
		{
			$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "users WHERE user_id = :id LIMIT 1");
			$prep->execute(["id" => strtolower($id)]);
		}
		elseif ($name)
		{
			$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "users WHERE LOWER(user_name) = :name LIMIT 1");
			$prep->execute(["name" => strtolower($name)]);
		}
		$data = NULL;
		$obj = (object) [];
		if ($prep)
			$data = $prep->fetchAll();
		if (isset($data[0]) && $data = $data[0])
		{
			$obj->id = $data['user_id'];
			$obj->username = $data['user_name'];
			$obj->passhash = $data['user_pass'];
			$obj->first_name = $data['user_fname'] ?? NULL;
			$obj->last_name = $data['user_lname'] ?? NULL;
			$obj->created = $data['created'];
			$obj->bio = $data['user_bio'];
			$obj->email = $data['user_email'];
			$obj->user_meta = (new PanelUser_Meta($obj->id))->list;
		}
		$u['object'] = $obj;
	}

	public static function get_usermeta(&$u)
	{
		$list = &$u['meta'];
		$id = $u['id'];
		$conn = sqlnew();
		if (isset($id))
		{
			$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id");
			$prep->execute(["id" => $id]);
		}
		foreach ($prep->fetchAll() as $row)
		{
			$list[$row['meta_key']] = $row['meta_value'];
		}
	}

	public static function add_usermeta(&$meta)
	{
		$meta = $meta['meta'];
		$conn = sqlnew();
		/* check if it exists first, update it if it does */
		$query = "SELECT * FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id AND meta_key = :key";
		$stmt = $conn->prepare($query);
		$stmt->execute(["id" => $meta['id'], "key" => $meta['key']]);
		if ($stmt->rowCount()) // it exists, update instead of insert
		{
			$query = "UPDATE " . SQL_PREFIX . "user_meta SET meta_value = :value WHERE user_id = :id AND meta_key = :key";
			$stmt = $conn->prepare($query);
			$stmt->execute($meta);
			if ($stmt->rowCount())
				return true;
			return false;
		}

		else
		{
			$query = "INSERT INTO " . SQL_PREFIX . "user_meta (user_id, meta_key, meta_value) VALUES (:id, :key, :value)";
			$stmt = $conn->prepare($query);
			$stmt->execute($meta);
			if ($stmt->rowCount())
				return true;
			return false;
		}
	}
	public static function del_usermeta(&$u)
	{
		$conn = sqlnew();
		$query = "DELETE FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id AND meta_key = :key";
		$stmt = $conn->prepare($query);
		$stmt->execute($u['meta']);
		if ($stmt->rowCount())
			return true;
		return false;
	}
	public static function user_create(&$u)
	{
		$username = $u['user_name'];
		$first_name = $u['fname'];
		$last_name = $u['lname'];
		$password = $u['user_pass'];
		$user_bio = $u['user_bio'];
		$user_email = $u['user_email'];
		$conn = sqlnew();
		$prep = $conn->prepare("INSERT INTO " . SQL_PREFIX . "users (user_name, user_pass, user_fname, user_lname, user_bio, user_email, created) VALUES (:name, :pass, :fname, :lname, :user_bio, :user_email, :created)");
		$prep->execute(["name" => $username, "pass" => $password, "fname" => $first_name, "lname" => $last_name, "user_bio" => $user_bio, "user_email" => $user_email, "created" => date("Y-m-d H:i:s")]);
		if ($prep->rowCount())
			$u['success'] = true;
		else
			$u['errmsg'][] = "Could not add user";
	}

	public static function get_user_list(&$list)
	{
		$conn = sqlnew();
		$result = $conn->query("SELECT user_id FROM " . SQL_PREFIX . "users");
		if (!$result) // impossible
		{
			die("Something went wrong.");
		}
		$userlist = [];
		while($row =  $result->fetch())
		{
			$userlist[] = new PanelUser(NULL, $row['user_id']);
		}
		if (!empty($userlist))
			$list = $userlist;
		
	}
	public static function user_delete(&$u)
	{
		$user = $u['user'];
		$query = "DELETE FROM " . SQL_PREFIX . "users WHERE user_id = :id";
		$conn = sqlnew();
		$stmt = $conn->prepare($query);
		$stmt->execute(["id" => $user->id]);
		$deleted = $stmt->rowCount();
		if ($deleted)
		{
			$u['info'][] = "Successfully deleted user \"$user->username\"";
			$u['boolint'] =  1;
		} else {
			$u['info'][] = "Unknown error";
			$u['boolint'] = 0;
		}
	}
}


function security_check()
{
	$ip = $_SERVER['REMOTE_ADDR'];
	if (dnsbl_check($ip))
		return true;

	else if (fail2ban_check($ip))
	{

	}
}

function dnsbl_check($ip)
{
	$dnsbl_lookup = DNSBL;

	// clear variable just in case
	$listed = NULL;

	// if the IP was not given because you're an idiot, stop processing
	if (!$ip) { return; }
	
	// get the first two segments of the IPv4	
	$because = split($ip, ".");   // why you
	$you = $because[1]; 		  // gotta play
	$want = $because[2];		 // that song
	$to = $you.".".$want.".";	// so loud?
	
	// exempt local connections because sometimes they get a false positive
	if ($to == "192.168." || $to == "127.0.") { return NULL; }
	
	// you spin my IP right round, right round, to check the records baby, right round-round-round
	$reverse_ip = glue(array_reverse(split($ip, ".")), ".");
	
	// checkem
	foreach ($dnsbl_lookup as $host) {
		
		//if it was listed
		if (checkdnsrr($reverse_ip . "." . $host . ".", "A")) {
			
			//take note
			$listed = $host;
		}
	}

	// if it was safe, return NOTHING
	if (!$listed) {
		return NULL;
	}
	
	// else, you guessed it, return where it was listed
	else {
		return $listed;
	}
}

function fail2ban_check($ip)
{

}
Commit	Line	Data
ea27475b VP	1	<?php
	2
	3	require_once "SQL/sql.php";
ce9cf366	4	require_once "SQL/settings.php";
4d634d0a	5
ea27475b VP	6	class sql_auth
ea27475b VP	7	{
b44a2e97	8	public $name = "SQLAuth";
ea27475b VP	9	public $author = "Valware";
	10	public $version = "1.0";
	11	public $description = "Provides a User Auth and Management Panel with an SQL backend";
b65f0496	12	public $email = "v.a.pond@outlook.com";
ea27475b VP	13
	14	function __construct()
	15	{
5015c85c	16	self::create_tables();
b44a2e97	17	Hook::func(HOOKTYPE_PRE_HEADER, 'sql_auth::session_start');
33f512fa	18	Hook::func(HOOKTYPE_FOOTER, 'sql_auth::add_footer_info');
6930484c VP	19	Hook::func(HOOKTYPE_USER_LOOKUP, 'sql_auth::get_user');
	20	Hook::func(HOOKTYPE_USERMETA_ADD, 'sql_auth::add_usermeta');
	21	Hook::func(HOOKTYPE_USERMETA_DEL, 'sql_auth::del_usermeta');
	22	Hook::func(HOOKTYPE_USERMETA_GET, 'sql_auth::get_usermeta');
180b8ec1 VP	23	Hook::func(HOOKTYPE_USER_CREATE, 'sql_auth::user_create');
	24	Hook::func(HOOKTYPE_GET_USER_LIST, 'sql_auth::get_user_list');
	25	Hook::func(HOOKTYPE_USER_DELETE, 'sql_auth::user_delete');
4d634d0a VP	26
	27	if (defined('SQL_DEFAULT_USER')) // we've got a default account
	28	{
6930484c	29	$lkup = new PanelUser(SQL_DEFAULT_USER['username']);
4d634d0a VP	30
	31	if (!$lkup->id) // doesn't exist, add it with full privileges
	32	{
180b8ec1 VP	33	$user = [];
	34	$user['user_name'] = SQL_DEFAULT_USER['username'];
	35	$user['user_pass'] = SQL_DEFAULT_USER['password'];
	36	$user['err'] = "";
	37	create_new_user($user);
4d634d0a	38	}
79d2194c VP	39	$lkup = new PanelUser(SQL_DEFAULT_USER['username']);
	40	if (!user_can($lkup, PERMISSION_MANAGE_USERS))
	41	$lkup->add_permission(PERMISSION_MANAGE_USERS);
4d634d0a	42	}
ea27475b VP	43	}
ea27475b VP	44
ea27475b	45
33f512fa VP	46	public static function add_footer_info($empty)
33f512fa VP	47	{
148df839	48	if (!($user = unreal_get_current_user())->id)
33f512fa VP	49	return;
	50
	51	else {
	52	echo "<code>Admin Panel v" . WEBPANEL_VERSION . "</code>";
	53	}
	54	}
	55
3a8ffab8	56	/* pre-Header hook */
b44a2e97 VP	57	public static function session_start($n)
b44a2e97 VP	58	{
06369f59 VP	59	if (!isset($_SESSION))
	60	{
	61	session_set_cookie_params(3600);
	62	session_start();
	63	}
454379e3	64	if (!isset($_SESSION['id']) \|\| empty($_SESSION))
b44a2e97	65	{
3a8ffab8 VP	66	$secure = ($_SERVER['HTTPS'] == 'on') ? "https://" : "http://";
3a8ffab8 VP	67	$current_url = "$secure$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
ce9cf366 VP	68	$tok = split($_SERVER['SCRIPT_FILENAME'], "/");
	69	if ($check = security_check() && $tok[count($tok) - 1] !== "error.php") {
	70	header("Location: " . BASE_URL . "plugins/sql_auth/error.php");
	71	die();
	72	}
321b7b81	73	header("Location: ".BASE_URL."login/?redirect=".urlencode($current_url));
454379e3	74	die();
b44a2e97	75	}
08ce3aa7 VP	76	else
08ce3aa7 VP	77	{
f5e3ecee	78	if (!unreal_get_current_user()->id) // user no longer exists
08ce3aa7 VP	79	{
08ce3aa7 VP	80	session_destroy();
321b7b81	81	header("Location: ".BASE_URL."login");
f5e3ecee	82	die();
08ce3aa7	83	}
e3e93dde	84	// you'll be automatically logged out after one hour of inactivity
08ce3aa7	85	}
b44a2e97	86	}
ea27475b	87
ce9cf366 VP	88	/**
	89	* Create the tables we'll be using in the SQLdb
	90	* @return void
	91	*/
5015c85c VP	92	public static function create_tables()
	93	{
	94	$conn = sqlnew();
	95	$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "users (
	96	user_id int AUTO_INCREMENT NOT NULL,
	97	user_name VARCHAR(255) NOT NULL,
	98	user_pass VARCHAR(255) NOT NULL,
9a674833	99	user_email VARCHAR(255),
5015c85c VP	100	user_fname VARCHAR(255),
	101	user_lname VARCHAR(255),
	102	user_bio VARCHAR(255),
	103	created VARCHAR(255),
	104	PRIMARY KEY (user_id)
	105	)");
9a674833 VP	106
	107	/**
	108	* Patch for beta users
	109	* This adds the email column to existing tables without it
	110	*/
	111	$columns = $conn->query("SHOW COLUMNS FROM " . SQL_PREFIX . "users");
	112	$column_names = array();
	113	$c = $columns->fetchAll();
f5173b9c	114
9a674833 VP	115	foreach($c as $column) {
	116	$column_names[] = $column['Field'];
	117	}
	118	$column_exists = in_array("user_email", $column_names);
	119	if (!$column_exists) {
	120	$conn->query("ALTER TABLE " . SQL_PREFIX . "users ADD COLUMN user_email varchar(255)");
	121	}
	122
f5173b9c VP	123	/**
	124	* Another patch for beta users
	125	* This changes the size of the meta_value so we can store more
	126	*/
	127	$columns = $conn->query("SHOW COLUMNS FROM ".SQL_PREFIX."user_meta");
	128	$c = $columns->fetchAll();
	129	if (!empty($c))
	130	$conn->query("ALTER TABLE `".SQL_PREFIX."user_meta` CHANGE `meta_value` `meta_value` VARCHAR(5000) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NULL DEFAULT NULL");
	131
9a674833	132
5015c85c VP	133	$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "user_meta (
	134	meta_id int AUTO_INCREMENT NOT NULL,
	135	user_id int NOT NULL,
	136	meta_key VARCHAR(255) NOT NULL,
	137	meta_value VARCHAR(255),
	138	PRIMARY KEY (meta_id)
	139	)");
ce9cf366 VP	140	$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "auth_settings (
	141	id int AUTO_INCREMENT NOT NULL,
	142	setting_key VARCHAR(255) NOT NULL,
	143	setting_value VARCHAR(255),
	144	PRIMARY KEY (id)
	145	)");
33f512fa VP	146	$conn->query("CREATE TABLE IF NOT EXISTS " . SQL_PREFIX . "fail2ban (
	147	id int AUTO_INCREMENT NOT NULL,
	148	ip VARCHAR(255) NOT NULL,
	149	count VARCHAR(255),
	150	PRIMARY KEY (id)
	151	)");
9c643401	152	new AuthSettings();
5015c85c VP	153	}
5015c85c VP	154
6930484c VP	155	/* We convert $u with a full user as an object ;D*/
	156	public static function get_user(&$u)
	157	{
	158	$id = $u['id'];
	159	$name = $u['name'];
	160	$conn = sqlnew();
	161
	162	if ($id)
	163	{
	164	$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "users WHERE user_id = :id LIMIT 1");
	165	$prep->execute(["id" => strtolower($id)]);
	166	}
	167	elseif ($name)
	168	{
	169	$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "users WHERE LOWER(user_name) = :name LIMIT 1");
	170	$prep->execute(["name" => strtolower($name)]);
	171	}
	172	$data = NULL;
	173	$obj = (object) [];
	174	if ($prep)
	175	$data = $prep->fetchAll();
	176	if (isset($data[0]) && $data = $data[0])
	177	{
	178	$obj->id = $data['user_id'];
	179	$obj->username = $data['user_name'];
	180	$obj->passhash = $data['user_pass'];
	181	$obj->first_name = $data['user_fname'] ?? NULL;
	182	$obj->last_name = $data['user_lname'] ?? NULL;
	183	$obj->created = $data['created'];
	184	$obj->bio = $data['user_bio'];
9a674833	185	$obj->email = $data['user_email'];
6930484c VP	186	$obj->user_meta = (new PanelUser_Meta($obj->id))->list;
	187	}
	188	$u['object'] = $obj;
	189	}
	190
	191	public static function get_usermeta(&$u)
	192	{
6930484c VP	193	$list = &$u['meta'];
	194	$id = $u['id'];
	195	$conn = sqlnew();
	196	if (isset($id))
	197	{
	198	$prep = $conn->prepare("SELECT * FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id");
	199	$prep->execute(["id" => $id]);
	200	}
	201	foreach ($prep->fetchAll() as $row)
	202	{
	203	$list[$row['meta_key']] = $row['meta_value'];
	204	}
	205	}
	206
	207	public static function add_usermeta(&$meta)
	208	{
da6fa2d1	209	$meta = $meta['meta'];
6930484c VP	210	$conn = sqlnew();
	211	/* check if it exists first, update it if it does */
	212	$query = "SELECT * FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id AND meta_key = :key";
	213	$stmt = $conn->prepare($query);
	214	$stmt->execute(["id" => $meta['id'], "key" => $meta['key']]);
	215	if ($stmt->rowCount()) // it exists, update instead of insert
	216	{
	217	$query = "UPDATE " . SQL_PREFIX . "user_meta SET meta_value = :value WHERE user_id = :id AND meta_key = :key";
	218	$stmt = $conn->prepare($query);
	219	$stmt->execute($meta);
	220	if ($stmt->rowCount())
	221	return true;
	222	return false;
	223	}
	224
	225	else
	226	{
	227	$query = "INSERT INTO " . SQL_PREFIX . "user_meta (user_id, meta_key, meta_value) VALUES (:id, :key, :value)";
	228	$stmt = $conn->prepare($query);
	229	$stmt->execute($meta);
	230	if ($stmt->rowCount())
	231	return true;
	232	return false;
	233	}
	234	}
	235	public static function del_usermeta(&$u)
	236	{
	237	$conn = sqlnew();
	238	$query = "DELETE FROM " . SQL_PREFIX . "user_meta WHERE user_id = :id AND meta_key = :key";
	239	$stmt = $conn->prepare($query);
	240	$stmt->execute($u['meta']);
	241	if ($stmt->rowCount())
	242	return true;
	243	return false;
	244	}
180b8ec1 VP	245	public static function user_create(&$u)
	246	{
	247	$username = $u['user_name'];
	248	$first_name = $u['fname'];
	249	$last_name = $u['lname'];
	250	$password = $u['user_pass'];
	251	$user_bio = $u['user_bio'];
9a674833	252	$user_email = $u['user_email'];
180b8ec1	253	$conn = sqlnew();
9a674833 VP	254	$prep = $conn->prepare("INSERT INTO " . SQL_PREFIX . "users (user_name, user_pass, user_fname, user_lname, user_bio, user_email, created) VALUES (:name, :pass, :fname, :lname, :user_bio, :user_email, :created)");
9a674833 VP	255	$prep->execute(["name" => $username, "pass" => $password, "fname" => $first_name, "lname" => $last_name, "user_bio" => $user_bio, "user_email" => $user_email, "created" => date("Y-m-d H:i:s")]);
180b8ec1 VP	256	if ($prep->rowCount())
	257	$u['success'] = true;
	258	else
	259	$u['errmsg'][] = "Could not add user";
	260	}
	261
	262	public static function get_user_list(&$list)
	263	{
	264	$conn = sqlnew();
	265	$result = $conn->query("SELECT user_id FROM " . SQL_PREFIX . "users");
	266	if (!$result) // impossible
	267	{
	268	die("Something went wrong.");
	269	}
	270	$userlist = [];
	271	while($row = $result->fetch())
	272	{
	273	$userlist[] = new PanelUser(NULL, $row['user_id']);
	274	}
	275	if (!empty($userlist))
	276	$list = $userlist;
	277
	278	}
	279	public static function user_delete(&$u)
	280	{
	281	$user = $u['user'];
	282	$query = "DELETE FROM " . SQL_PREFIX . "users WHERE user_id = :id";
	283	$conn = sqlnew();
	284	$stmt = $conn->prepare($query);
	285	$stmt->execute(["id" => $user->id]);
	286	$deleted = $stmt->rowCount();
	287	if ($deleted)
	288	{
	289	$u['info'][] = "Successfully deleted user \"$user->username\"";
	290	$u['boolint'] = 1;
	291	} else {
	292	$u['info'][] = "Unknown error";
	293	$u['boolint'] = 0;
	294	}
	295	}
ce9cf366 VP	296	}
	297
	298
	299	function security_check()
	300	{
	301	$ip = $_SERVER['REMOTE_ADDR'];
	302	if (dnsbl_check($ip))
	303	return true;
	304
	305	else if (fail2ban_check($ip))
	306	{
	307
	308	}
	309	}
	310
	311	function dnsbl_check($ip)
	312	{
	313	$dnsbl_lookup = DNSBL;
	314
	315	// clear variable just in case
	316	$listed = NULL;
	317
	318	// if the IP was not given because you're an idiot, stop processing
	319	if (!$ip) { return; }
	320
	321	// get the first two segments of the IPv4
	322	$because = split($ip, "."); // why you
	323	$you = $because[1]; // gotta play
	324	$want = $because[2]; // that song
	325	$to = $you.".".$want."."; // so loud?
	326
	327	// exempt local connections because sometimes they get a false positive
	328	if ($to == "192.168." \|\| $to == "127.0.") { return NULL; }
	329
	330	// you spin my IP right round, right round, to check the records baby, right round-round-round
	331	$reverse_ip = glue(array_reverse(split($ip, ".")), ".");
	332
	333	// checkem
	334	foreach ($dnsbl_lookup as $host) {
	335
	336	//if it was listed
	337	if (checkdnsrr($reverse_ip . "." . $host . ".", "A")) {
	338
	339	//take note
	340	$listed = $host;
	341	}
	342	}
	343
	344	// if it was safe, return NOTHING
	345	if (!$listed) {
	346	return NULL;
	347	}
	348
	349	// else, you guessed it, return where it was listed
	350	else {
	351	return $listed;
	352	}
	353	}
	354
	355	function fail2ban_check($ip)
33f512fa VP	356	{
	357
	358	}