plugins/sql_auth/sql_auth.php

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