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 $email = "v.a.pond@outlook.com";
  13
  14         function __construct()
  15         {
  16                 Hook::func(HOOKTYPE_PRE_HEADER, 'sql_auth::session_start');
  17                 Hook::func(HOOKTYPE_USER_LOOKUP, 'sql_auth::get_user');
  18                 Hook::func(HOOKTYPE_USERMETA_ADD, 'sql_auth::add_usermeta');
  19                 Hook::func(HOOKTYPE_USERMETA_DEL, 'sql_auth::del_usermeta');
  20                 Hook::func(HOOKTYPE_USERMETA_GET, 'sql_auth::get_usermeta');
  21                 Hook::func(HOOKTYPE_USER_CREATE, 'sql_auth::user_create');
  22                 Hook::func(HOOKTYPE_GET_USER_LIST, 'sql_auth::get_user_list');
  23                 Hook::func(HOOKTYPE_USER_DELETE, 'sql_auth::user_delete');
  24                 Hook::func(HOOKTYPE_EDIT_USER, 'sql_auth::edit_core');
  25                 Hook::func(HOOKTYPE_PRE_OVERVIEW_CARD, 'sql_auth::add_pre_overview_card');
  26                 AuthModLoaded::$status = 1;
  27
  28         }
  29
  30         public static function add_pre_overview_card($empty)
  31         {
  32                 if (defined('SQL_DEFAULT_USER'))
  33                         Message::Fail("Warning: SQL_DEFAULT_USER is set in config.php. You should remove that item now, as it is only used during installation.");
  34                 if (defined('DEFAULT_USER'))
  35                         Message::Fail("Warning: DEFAULT_USER is set in config.php. You should remove that item now, as it is only used during installation.");
  36         }
  37
  38         /* pre-Header hook */
  39         public static function session_start($n)
  40         {
  41                 $current_page = $_SERVER['REQUEST_URI'];
  42                 if (!isset($_SESSION))
  43                 {
  44                         session_set_cookie_params(3600);
  45                         session_start();
  46                 }
  47                 if (!isset($_SESSION['id']) || empty($_SESSION))
  48                 {
  49
  50                         $tok = split($_SERVER['SCRIPT_FILENAME'], "/");
  51                         if ($check = security_check() && $tok[count($tok) - 1] !== "error.php") {
  52                                 header("Location: " . get_config("base_url") . "plugins/sql_auth/error.php");
  53                                 die();
  54                         }
  55                         header("Location: ".get_config("base_url")."login/?redirect=".urlencode($current_page));
  56                         die();
  57                 }
  58                 else
  59                 {
  60                         if (!unreal_get_current_user()) // user no longer exists
  61                         {
  62                                 session_destroy();
  63                                 header("Location: ".get_config("base_url")."login");
  64                                 die();
  65                         }
  66                         // you'll be automatically logged out after one hour of inactivity
  67                         $_SESSION['last-activity'] = time();
  68
  69                 }
  70         }
  71
  72         /**
  73          * Create the tables we'll be using in the SQLdb
  74          * @return void
  75          */
  76         public static function create_tables()
  77         {
  78                 $conn = sqlnew();
  79                 $conn->query("CREATE TABLE IF NOT EXISTS " . get_config("mysql::table_prefix") . "users (
  80                         user_id int AUTO_INCREMENT NOT NULL,
  81                         user_name VARCHAR(255) NOT NULL,
  82                         user_pass VARCHAR(255) NOT NULL,
  83                         user_email VARCHAR(255),
  84                         user_fname VARCHAR(255),
  85                         user_lname VARCHAR(255),
  86                         user_bio VARCHAR(255),
  87                         created VARCHAR(255),
  88                         PRIMARY KEY (user_id)
  89                 )");
  90
  91                 /**
  92                  * Patch for beta users
  93                  * This adds the email column to existing tables without it
  94                 */
  95                 $columns = $conn->query("SHOW COLUMNS FROM " . get_config("mysql::table_prefix") . "users");
  96                 $column_names = array();
  97                 $c = $columns->fetchAll();
  98
  99                 foreach($c as $column) {
 100                         $column_names[] = $column['Field'];
 101                 }
 102                 $column_exists = in_array("user_email", $column_names);
 103                 if (!$column_exists) {
 104                         $conn->query("ALTER TABLE " . get_config("mysql::table_prefix") . "users ADD COLUMN user_email varchar(255)");
 105                 }
 106
 107                 /**
 108                  * Another patch for beta users
 109                  * This changes the size of the meta_value so we can store more
 110                  */
 111
 112                 $conn->query("CREATE TABLE IF NOT EXISTS " . get_config("mysql::table_prefix") . "user_meta (
 113                         meta_id int AUTO_INCREMENT NOT NULL,
 114                         user_id int NOT NULL,
 115                         meta_key VARCHAR(255) NOT NULL,
 116                         meta_value VARCHAR(255),
 117                         PRIMARY KEY (meta_id)
 118                 )");
 119                 $conn->query("CREATE TABLE IF NOT EXISTS " . get_config("mysql::table_prefix") . "settings (
 120                         id int AUTO_INCREMENT NOT NULL,
 121                         setting_key VARCHAR(255) NOT NULL,
 122                         setting_value VARCHAR(255),
 123                         PRIMARY KEY (id)
 124                 )");
 125                 $conn->query("CREATE TABLE IF NOT EXISTS " . get_config("mysql::table_prefix") . "fail2ban (
 126                         id int AUTO_INCREMENT NOT NULL,
 127                         ip VARCHAR(255) NOT NULL,
 128                         count VARCHAR(255),
 129                         PRIMARY KEY (id)
 130                 )");
 131                 $c = [];
 132                 if (($columns = $conn->query("SHOW COLUMNS FROM ".get_config("mysql::table_prefix")."user_meta")));
 133                         $c = $columns->fetchAll();
 134                 if (!empty($c))
 135                         $conn->query("ALTER TABLE `".get_config("mysql::table_prefix")."user_meta` CHANGE `meta_value` `meta_value` VARCHAR(5000) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin NULL DEFAULT NULL");
 136
 137                 /* make sure everything went well */
 138                 $tables = ["users", "user_meta", "fail2ban", "settings"];
 139                 $errors = 0; // counter
 140                 $error_messages = "";
 141                 foreach($tables as $table)
 142                 {
 143                         $prefix = get_config("sql::table_prefix");
 144                         $sql = "SHOW TABLES LIKE '$prefix%'"; // SQL query to check if table exists
 145
 146                         $result = $conn->query($sql);
 147                         if ($result->rowCount())
 148                         {   /* great! */ }
 149
 150                         else {
 151                                 $errors++;
 152                                 strcat($error_messages,"Table '$prefix$table' was not created successfully.<br>");
 153                         }
 154                 }
 155                 if (!$errors)
 156                 {
 157                         if (defined('DEFAULT_USER')) // we've got a default account
 158                         {
 159                                 $lkup = new PanelUser(DEFAULT_USER['username']);
 160
 161                                 if (!$lkup->id) // doesn't exist, add it with full privileges
 162                                 {
 163                                         $user = [];
 164                                         $user['user_name'] = DEFAULT_USER['username'];
 165                                         $user['user_pass'] = DEFAULT_USER['password'];
 166                                         $user['err'] = "";
 167                                         create_new_user($user);
 168                                 }
 169                                 $lkup = new PanelUser(DEFAULT_USER['username']);
 170                                 if (!user_can($lkup, PERMISSION_MANAGE_USERS))
 171                                         $lkup->add_permission(PERMISSION_MANAGE_USERS);
 172                         }
 173                         return true;
 174                 }
 175                 else
 176                         return false;
 177
 178         }
 179
 180         /* We convert $u with a full user as an object ;D*/
 181         public static function get_user(&$u)
 182         {
 183                 $id = $u['id'];
 184                 $name = $u['name'];
 185                 $conn = sqlnew();
 186
 187                 if ($id)
 188                 {
 189                         $prep = $conn->prepare("SELECT * FROM " . get_config("mysql::table_prefix") . "users WHERE user_id = :id LIMIT 1");
 190                         $prep->execute(["id" => strtolower($id)]);
 191                 }
 192                 elseif ($name)
 193                 {
 194                         $prep = $conn->prepare("SELECT * FROM " . get_config("mysql::table_prefix") . "users WHERE LOWER(user_name) = :name LIMIT 1");
 195                         $prep->execute(["name" => strtolower($name)]);
 196                 }
 197                 $data = NULL;
 198                 $obj = (object) [];
 199                 if ($prep)
 200                         $data = $prep->fetchAll();
 201                 if (isset($data[0]) && $data = $data[0])
 202                 {
 203                         $obj->id = $data['user_id'];
 204                         $obj->username = $data['user_name'];
 205                         $obj->passhash = $data['user_pass'];
 206                         $obj->first_name = $data['user_fname'] ?? NULL;
 207                         $obj->last_name = $data['user_lname'] ?? NULL;
 208                         $obj->created = $data['created'];
 209                         $obj->bio = $data['user_bio'];
 210                         $obj->email = $data['user_email'];
 211                         $obj->user_meta = (new PanelUser_Meta($obj->id))->list;
 212                 }
 213                 $u['object'] = $obj;
 214         }
 215
 216         public static function get_usermeta(&$u)
 217         {
 218                 $list = &$u['meta'];
 219                 $id = $u['id'];
 220                 $conn = sqlnew();
 221                 if (isset($id))
 222                 {
 223                         $prep = $conn->prepare("SELECT * FROM " . get_config("mysql::table_prefix") . "user_meta WHERE user_id = :id");
 224                         $prep->execute(["id" => $id]);
 225                 }
 226                 foreach ($prep->fetchAll() as $row)
 227                 {
 228                         $list[$row['meta_key']] = $row['meta_value'];
 229                 }
 230         }
 231
 232         public static function add_usermeta(&$meta)
 233         {
 234                 $meta = $meta['meta'];
 235                 $conn = sqlnew();
 236                 /* check if it exists first, update it if it does */
 237                 $query = "SELECT * FROM " . get_config("mysql::table_prefix") . "user_meta WHERE user_id = :id AND meta_key = :key";
 238                 $stmt = $conn->prepare($query);
 239                 $stmt->execute(["id" => $meta['id'], "key" => $meta['key']]);
 240                 if ($stmt->rowCount()) // it exists, update instead of insert
 241                 {
 242                         $query = "UPDATE " . get_config("mysql::table_prefix") . "user_meta SET meta_value = :value WHERE user_id = :id AND meta_key = :key";
 243                         $stmt = $conn->prepare($query);
 244                         $stmt->execute($meta);
 245                         if ($stmt->rowCount())
 246                                 return true;
 247                         return false;
 248                 }
 249
 250                 else
 251                 {
 252                         $query = "INSERT INTO " . get_config("mysql::table_prefix") . "user_meta (user_id, meta_key, meta_value) VALUES (:id, :key, :value)";
 253                         $stmt = $conn->prepare($query);
 254                         $stmt->execute($meta);
 255                         if ($stmt->rowCount())
 256                                 return true;
 257                         return false;
 258                 }
 259         }
 260         public static function del_usermeta(&$u)
 261         {
 262                 $conn = sqlnew();
 263                 $query = "DELETE FROM " . get_config("mysql::table_prefix") . "user_meta WHERE user_id = :id AND meta_key = :key";
 264                 $stmt = $conn->prepare($query);
 265                 $stmt->execute($u['meta']);
 266                 if ($stmt->rowCount())
 267                         return true;
 268                 return false;
 269         }
 270         public static function user_create(&$u)
 271         {
 272                 $username = $u['user_name'];
 273                 $first_name = $u['fname'] ?? NULL;
 274                 $last_name = $u['lname'] ?? NULL;
 275                 $password = $u['user_pass'] ?? NULL;
 276                 $user_bio = $u['user_bio'] ?? NULL;
 277                 $user_email = $u['user_email'] ?? NULL;
 278                 $conn = sqlnew();
 279                 $prep = $conn->prepare("INSERT INTO " . get_config("mysql::table_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)");
 280                 $prep->execute(["name" => $username, "pass" => $password, "fname" => $first_name, "lname" => $last_name, "user_bio" => $user_bio, "user_email" => $user_email, "created" => date("Y-m-d H:i:s")]);
 281                 if ($prep->rowCount())
 282                         $u['success'] = true;
 283                 else
 284                         $u['errmsg'][] = "Could not add user";
 285         }
 286
 287         public static function get_user_list(&$list)
 288         {
 289                 $conn = sqlnew();
 290                 $result = $conn->query("SELECT user_id FROM " . get_config("mysql::table_prefix") . "users");
 291                 if (!$result) // impossible
 292                 {
 293                         die("Something went wrong.");
 294                 }
 295                 $userlist = [];
 296                 while($row =  $result->fetch())
 297                 {
 298                         $userlist[] = new PanelUser(NULL, $row['user_id']);
 299                 }
 300                 if (!empty($userlist))
 301                         $list = $userlist;
 302
 303         }
 304         public static function user_delete(&$u)
 305         {
 306                 $user = $u['user'];
 307                 $query = "DELETE FROM " . get_config("mysql::table_prefix") . "users WHERE user_id = :id";
 308                 $conn = sqlnew();
 309                 $stmt = $conn->prepare($query);
 310                 $stmt->execute(["id" => $user->id]);
 311                 $deleted = $stmt->rowCount();
 312                 if ($deleted)
 313                 {
 314                         $u['info'][] = "Successfully deleted user \"$user->username\"";
 315                         $u['boolint'] =  1;
 316                 } else {
 317                         $u['info'][] = "Unknown error";
 318                         $u['boolint'] = 0;
 319                 }
 320         }
 321
 322         public static function edit_core($arr)
 323         {
 324                 $conn = sqlnew();
 325                 $user = $arr['user'];
 326                 $info = $arr['info'];
 327                 foreach($info as $key => $val)
 328                 {
 329                         $value = NULL;
 330                         if (!$val || !strlen($val) || BadPtr($val))
 331                                 continue;
 332                         if (!strcmp($key,"update_fname") && $val != $user->first_name)
 333                         {
 334                                 $value = "user_fname";
 335                                 $valuestr = "first name";
 336                         }
 337                         elseif (!strcmp($key,"update_lname") && $val != $user->last_name)
 338                         {
 339                                 $value = "user_lname";
 340                                 $valuestr = "last name";
 341                         }
 342                         elseif (!strcmp($key,"update_bio") && $val != $user->bio)
 343                         {
 344                                 $value = "user_bio";
 345                                 $valuestr = "bio";
 346                         }
 347                         elseif (!strcmp($key,"update_pass") || !strcmp($key,"update_pass_conf"))
 348                         {
 349                                 $value = "user_pass";
 350                                 $valuestr = "password";
 351                         }
 352                         elseif(!strcmp($key,"update_email") && $val != $user->email)
 353                         {
 354                                 $value = "user_email";
 355                                 $valuestr = "email address";
 356                         }
 357
 358                         if (!$value)
 359                                 continue;
 360                         $query = "UPDATE " . get_config("mysql::table_prefix") . "users SET $value=:value WHERE user_id = :id";
 361                         $stmt = $conn->prepare($query);
 362                         $stmt->execute(["value" => $val, "id" => $user->id]);
 363
 364                         if (!$stmt->rowCount() && $stmt->errorInfo()[0] != "00000")
 365                                 Message::Fail("Could not update $valuestr for $user->username: ".$stmt->errorInfo()[0]." (CODE: ".$stmt->errorCode().")");
 366
 367                         else
 368                                 Message::Success("Successfully updated the $valuestr for $user->username");
 369                 }
 370         }
 371 }
 372
 373
 374 function security_check()
 375 {
 376         $ip = $_SERVER['REMOTE_ADDR'];
 377         if (dnsbl_check($ip))
 378                 return true;
 379
 380         else if (fail2ban_check($ip))
 381         {
 382
 383         }
 384 }
 385
 386 function dnsbl_check($ip)
 387 {
 388         $dnsbl_lookup = get_config("dnsbl");
 389         if (!$dnsbl_lookup)
 390                 return;
 391
 392         // clear variable just in case
 393         $listed = NULL;
 394
 395         // if the IP was not given because you're an idiot, stop processing
 396         if (!$ip) { return; }
 397
 398         // get the first two segments of the IPv4
 399         $because = split($ip, ".");   // why you
 400         $you = $because[1];               // gotta play
 401         $want = $because[2];             // that song
 402         $to = $you.".".$want.".";       // so loud?
 403
 404         // exempt local connections because sometimes they get a false positive
 405         if ($to == "192.168." || $to == "127.0.") { return NULL; }
 406
 407         // you spin my IP right round, right round, to check the records baby, right round-round-round
 408         $reverse_ip = glue(array_reverse(split($ip, ".")), ".");
 409
 410         // checkem
 411         foreach ($dnsbl_lookup as $host) {
 412
 413                 //if it was listed
 414                 if (checkdnsrr($reverse_ip . "." . $host . ".", "A")) {
 415
 416                         //take note
 417                         $listed = $host;
 418                 }
 419         }
 420
 421         // if it was safe, return NOTHING
 422         if (!$listed) {
 423                 return NULL;
 424         }
 425
 426         // else, you guessed it, return where it was listed
 427         else {
 428                 return $listed;
 429         }
 430 }
 431
 432 function fail2ban_check($ip)
 433 {
 434
 435 }