/include/includes/func/user.php

<?php

# hier werden alle user spezifischen funktionen
# definert...

function user_identification () {
  user_auth();
  user_login_check();
  user_update_database();
  user_check_url_rewrite();
}

function user_auth () {
  debug ('user - auth gestartet'. session_id());
  $cn = session_und_cookie_name();
  if (!user_key_in_db()
   OR !isset($_SESSION['authid'])
   OR (isset($_SESSION['authsess']) AND $_SESSION['authsess'] != $cn)) {

    debug ('user - nicht in db oder nicht authid');

    user_set_guest_vars();
    user_set_user_online ();

    # wenn cn cookie vorhanden
    # dann checken ob er sich damit einloggen darf
    if (isset($_COOKIE[$cn])) {
      user_auto_login_check();
    }

    # gruppen, und modulzugehoerigkeit setzten
    user_set_grps_and_modules();
  }
}

function user_check_url_rewrite() {
  global $allgAr;
  if ( !loggedin() AND $allgAr['show_session_id'] == 0 ) {
    # loescht die sessionid von allen urls
    # auch urls wie formulare usw. damit
    # suchmaschienen bots nicht iritiert sind ;)
    # output_reset_rewrite_vars ist eine php funktion
    # nicht unnoetig dannach suchen ;) ...
    output_reset_rewrite_vars ();
  }
}

function user_update_database () {
  $dif = date('Y-m-d H:i:s', time() - 7200);
  db_query("UPDATE prefix_online SET uptime = now() WHERE sid = '".session_id()."'");
  db_query("DELETE FROM prefix_online WHERE uptime < '". $dif."'");
  if ( loggedin() ) {
    db_query("UPDATE prefix_user SET llogin = '".time()."' WHERE id = '".$_SESSION['authid']."'");
  }
}

function user_set_user_online () {
  global $allgAr;
  if (0 == db_result(db_query("SELECT COUNT(*) FROM prefix_online WHERE sid = '".session_id()."'"),0) ) {
    db_query("INSERT INTO prefix_online (sid,uptime,ipa) VALUES ('".session_id()."',now(),'".getip()."')");
  }
  $_SESSION['authgfx'] = $allgAr['gfx'];
}

function user_key_in_db() {
  if ( 1 == db_result(db_query("SELECT COUNT(*) FROM prefix_online WHERE sid = '".session_id()."'"),0) ) {
    return ( true );
  } else {
    return ( false );
  }
}

function session_und_cookie_name () {
  return (md5(dirname($_SERVER["HTTP_HOST"].$_SERVER["SCRIPT_NAME"]).DBPREF));
}

function user_pw_crypt($plainPassword) {
    if (version_compare(PHP_VERSION, '5.0') !== -1) {
        $pwCrypt = new PwCrypt();
        return $pwCrypt->cryptPasswd($plainPassword);
    }
    return md5($plainPassword);
}

function user_pw_check($plainPassword, &$passwordHash, $userId = false) {
    if (version_compare(PHP_VERSION, '5.0') !== -1) {
        $pwCrypt = new PwCrypt();
        $correct = $pwCrypt->checkPasswd($plainPassword, $passwordHash);
        if ($correct && $userId !== false && $pwCrypt->checkHashStrength($passwordHash)) {
            $passwordHash = $pwCrypt->cryptPasswd($plainPassword);
            if ($passwordHash) {
                db_query('UPDATE `prefix_user` SET `pass` = "' . $passwordHash . '" WHERE `id` = ' . $userId);
            }
        }
        return $correct;
    }
    return md5($plainPassword) === $passwordHash;
}

function user_set_cookie($id, $cryptedPassword) {
    $cookieString = $id . '=' . md5(DBUSER . $cryptedPassword);
    setcookie($_SESSION['authsess'], $cookieString , strtotime('+1 year'), '/' );
}

function user_cookie_check($cookieHash, $cryptedPassword) {
    return md5(DBUSER . $cryptedPassword) == $cookieHash;
}

function user_login_check () {
  if ( isset ($_POST['user_login_sub']) AND isset ($_POST['name']) AND isset ($_POST['pass']) ) {
    debug ('posts vorhanden');
    $name = escape_nickname($_POST['name']);
    if ($name != $_POST['name'] OR strlen($_POST['name']) > 15) {
        return false;
    }
    $erg = db_query("SELECT name,id,recht,pass,llogin FROM prefix_user WHERE name = BINARY '".$name."'");
    if ( db_num_rows($erg) == 1 ) {
      debug ('user gefunden');
      $row = db_fetch_assoc($erg);
      if (user_pw_check($_POST['pass'], $row['pass'], $row['id']) ) {
        debug ('passwort stimmt ... '.$row['name']);
        $_SESSION['authname']  = $row['name'];
        $_SESSION['authid']    = $row['id'];
        $_SESSION['authright'] = $row['recht'];
        $_SESSION['lastlogin'] = $row['llogin'];
        $_SESSION['authsess']  = session_und_cookie_name();
        db_query("UPDATE prefix_online SET uid = ".$_SESSION['authid']." WHERE sid = '".session_id()."'");
        user_set_cookie($row['id'], $row['pass']);
        user_set_grps_and_modules();
        return (true);
      }
    }
    global $menu;
    $menu->set_url (0, 'user');
    $menu->set_url (1, 'login');
  }
  return ( false );
}

function user_auto_login_check () {
  $cn = session_und_cookie_name();
  $dat = explode('=',$_COOKIE[$cn]);
  $id = $pw = 0;
  if (isset($dat[0])) { $id = escape($dat[0], 'integer'); }
  if (isset($dat[1])) { $pw = $dat[1]; }
  debug (' pw ' . $pw );
  debug (' id ' . $id );
  $erg = db_query("SELECT name,id,recht,pass,llogin FROM prefix_user WHERE id = ".$id);
  if (db_num_rows($erg) == 1) {
    debug ('benutzer gefunden');
    $row = db_fetch_assoc($erg);
    if (user_cookie_check($pw, $row['pass'])) {
      debug ('passwoerter stimmen');
      debug ($row['name']);
      $_SESSION['authname']  = $row['name'];
      $_SESSION['authid']    = $row['id'];
      $_SESSION['authright'] = $row['recht'];
      $_SESSION['lastlogin'] = $row['llogin'];
      $_SESSION['authsess']  = $cn;
      db_query("UPDATE prefix_online SET uid = ".$_SESSION['authid']." WHERE sid = '".session_id()."'");
      user_set_cookie($row['id'], $row['pass']);
      return (true);
    }
  }

  user_logout ();
  return (false);
}

function user_set_guest_vars() {
  $_SESSION['authname']  = 'Gast';
  $_SESSION['authid']    = 0;
  $_SESSION['authright'] = 0;
  $_SESSION['lastlogin'] = time();
  $_SESSION['authgrp'] = array();
  $_SESSION['authmod'] = array();
  $_SESSION['authsess']  = session_und_cookie_name();
}

function user_markallasread () {
  $_SESSION['lastlogin'] = time();
}

function user_logout () {
  #global $allgAr;
  #$_SESSION = array();
  #$_SESSION['authgfx'] = $allgAr['gfx'];
  user_set_guest_vars();
  db_query("UPDATE prefix_online SET uid = ".$_SESSION['authid']." WHERE sid = '".session_id()."'");
  setcookie(session_und_cookie_name(), "", time()-999999999999, "/" );
  #if (isset($_COOKIE[session_name()])) {
  #  setcookie(session_name(), '', time()-99999999999931104000, '/');
  #}
  #setcookie(session_und_cookie_name(), "", time()-999999999999, "/" );
  #session_destroy();
}

function user_set_grps_and_modules() {
    $_SESSION['authgrp'] = array();
    $_SESSION['authmod'] = array();
    $_SESSION['adminaccess'] = array();
    if (loggedin()) {
        $erg = db_query('SELECT gid FROM prefix_groupusers WHERE uid = ' . $_SESSION['authid']);
        while ($row = db_fetch_assoc($erg)) {
            $_SESSION['authgrp'][$row['gid']] = true;
        }
        $erg = db_query('SELECT DISTINCT m.url, m.gshow '
            . 'FROM prefix_modulerights mr '
            . 'INNER JOIN prefix_modules m ON m.id = mr.mid '
            . 'WHERE mr.uid = ' . $_SESSION['authid']);
        while ($row = db_fetch_assoc($erg)) {
            $_SESSION['authmod'][$row['url']] = true;
            if ($row['gshow']) {
                $_SESSION['adminaccess'][$row['url']] = true;
            }
        }
    }
}

function loggedin () {
  if ( has_right(-1) ) { return ( true ); } else { return ( false ); }
}
function is_admin () {
  if ( has_right(-9) ) { return ( true ); } else { return ( false ); }
}
function is_coadmin () {
  if ( has_right(-8) ) { return ( true ); } else { return ( false ); }
}
function is_siteadmin ($m = NULL) {
  if ( has_right(-7) ) { return ( true ); }
  if ( !is_null($m) AND has_right(NULL, $m)) { return (true); }
  return ( false );
}

# diese funktion liefert immer true wenn es ein admin ist.
# wenn kein kein admin wird geprueft ob der user
# entweder ein angegebenes recht oder in einer angegebene
# gruppe ist. oder ob er fals angegben das modulrecht hat.
# wenn eines von diesen 3 kriterien stimmt wird true ansonsten
# wenn keins uebereinstimmt false zurueck gegeben.
function has_right ($recht,$modul = '') {
  if ( !is_array($recht) AND !is_null($recht) ) {
    $recht = array ( $recht );
  }

  if ( $_SESSION['authright'] == -9 ) {
    return ( true );
  }

  if ( !is_null($recht) ) {
    foreach ( $recht as $v ) {
      if ( ($v <= 0 AND $v >= $_SESSION['authright'] ) OR (isset($_SESSION['authgrp'][$v]) AND $_SESSION['authgrp'][$v] === true) ) {
        return (true);
      }
    }
  }

  if ( !empty($modul) AND isset($_SESSION['authmod'][$modul]) AND $_SESSION['authmod'][$modul] === true ) {
    return ( true );
  }

  return (false);
}

### admin
# wenn der 2. parameter weggelassen wird oder auf true gesetzt wird
# dann wird ein login formular angezeigt, wenn der user kein admin ist.
# wird der parameter auf false gesetzt wird das login formular nicht angezeigt.
# erste parameter ist das menu objekt...
function user_has_admin_right($menu, $sl = true) {
    if ($_SESSION['authright'] <= -8) {  # co leader...
        return true;
    } else {
        $uri_to_check1 = $menu->get(0);
        $uri_to_check2 = $menu->get(1);
        if (count($_SESSION['adminaccess']) < 1 OR !loggedin()) {
            if ($sl === true) {
                if (!loggedin()) {
                    $tpl = new tpl('user/login.htm');
                    $tpl->set_out('WDLINK', 'admin.php', 0);
                } else {
                    echo '<strong>Keine Berechtigung!</strong> <a href="index.php">Startseite</a>';
                }
            }
            return false;
        } elseif ((isset($_SESSION['adminaccess'][$uri_to_check1]) AND $_SESSION['adminaccess'][$uri_to_check1] == true)
            || (isset($_SESSION['adminaccess'][$uri_to_check1 . '-' . $uri_to_check2]) AND $_SESSION['adminaccess'][$uri_to_check1 . '-' . $uri_to_check2] == true)
        ) {
            return true;
        } elseif (count($_SESSION['adminaccess']) > 0 AND loggedin()) {
            if ($sl === true) {
                foreach ($_SESSION['adminaccess'] as $k => $v) {
                    $x = $k;
                    break;
                }
                $x = explode('-', $x);
                $menu->set_url(0, $x[0]);
                if (isset($x[1])) {
                    $menu->set_url(1, $x[1]);
                }
            }
            return true;
        }
    }
    return false;
}

function user_regist ($name, $mail, $pass) {
  global $allgAr, $lang;

  $erg = db_query("SELECT id FROM prefix_user WHERE name = BINARY '".$name."'");
  if (db_num_rows($erg) > 0) {
    return (false);
  }

  if ( $allgAr['forum_regist_user_pass'] == 0 ) {
		$new_pass = genkey(8);
  } else {
	  $new_pass = $pass;
	}

  $passwordHash = user_pw_crypt($new_pass);
	$confirmlinktext = '';

	# confirm insert in confirm tb not confirm insert in user tb
	if ( $allgAr['forum_regist_confirm_link'] == 1 ) {
		# confirm link + text ... bit of shit put it in languages file
	  $page = $_SERVER["HTTP_HOST"].$_SERVER["SCRIPT_NAME"];
		$id = md5 (uniqid (rand()));
		$confirmlinktext = "\n".$lang['registconfirm']."\n\n".sprintf($lang['registconfirmlink'], $page, $id );
		db_query("INSERT INTO prefix_usercheck (`check`,name,email,pass,datime,ak)
		VALUES ('".$id."','".$name."','".$mail."','".$passwordHash."',NOW(),1)");
  } else {
	  db_query("INSERT INTO prefix_user (name,pass,recht,regist,llogin,email,status,opt_mail,opt_pm)
		VALUES('".$name."','".$passwordHash."',-1,'".time()."','".time()."','".$mail."',1,1,1)");
		$userid = db_last_id();
	}
  $regmail = sprintf($lang['registemail'],$name, $confirmlinktext, $name, $new_pass);

	icmail($mail,'Anmeldung',$regmail); # email an user

  return (true);
}

function user_remove($uid){
    $row = @db_fetch_object(db_query("SELECT recht,avatar FROM prefix_user WHERE id = ".$uid));
    if ( $uid <> 1 AND ($_SESSION['authid'] == $uid OR $_SESSION['authid'] == 1 OR (is_coadmin() AND $_SESSION['authright'] < $row->recht))) {
        db_query("DELETE FROM prefix_user WHERE id = ".$uid);
        db_query("DELETE FROM prefix_userfields WHERE uid = ".$uid);
        db_query("DELETE FROM prefix_groupusers WHERE uid = ".$uid);
        db_query("DELETE FROM prefix_modulerights WHERE uid = ".$uid);
        db_query("DELETE FROM prefix_pm WHERE eid = ".$uid);
        db_query("DELETE FROM prefix_online WHERE uid = ".$uid);
        //Usergallery entfernen
        $sql = db_query("SELECT id,endung FROM prefix_usergallery WHERE uid = ".$uid);
        while( $r = db_fetch_object($sql) ){
            @unlink("include/images/usergallery/img_$r->id.$r->endung");
            @unlink("include/images/usergallery/img_thumb_$r->id.$r->endung");
        }
        db_query("DELETE FROM prefix_usergallery WHERE uid = ".$uid);
        //Avatar
        @unlink($row->avatar);
    }
}

function sendpm ($sid,$eid,$ti,$te,$status = 0) {
  if (is_array($eid)) {
  	db_query("INSERT INTO `prefix_pm` (`sid`,`eid`,`time`,`titel`,`txt`,`status`) ".
  	"SELECT  ".$sid.",`prefix_user`.`id`,'".time()."','".$ti."','".$te."',".$status." FROM `prefix_user` WHERE `prefix_user`.`id` IN (" . implode(',', $eid) . ")");
  } else {
  	db_query("INSERT INTO `prefix_pm` (`sid`,`eid`,`time`,`titel`,`txt`,`status`) VALUES (".$sid.",".$eid.",'".time()."','".$ti."','".$te."',".$status.")");
  }
}
?>