PHP clr_dir函数代码示例

/**
* Enables deletion of directory if not empty
* @access  public
* @param   string $dir		the directory to delete
* @return  boolean			whether the deletion was successful
* @author  Joel Kronenberg
*/
function clr_dir($dir)
{
    if (!($opendir = @opendir($dir))) {
        return false;
    }
    while (($readdir = readdir($opendir)) !== false) {
        if ($readdir !== '..' && $readdir !== '.') {
            $readdir = trim($readdir);
            clearstatcache();
            /* especially needed for Windows machines: */
            if (is_file($dir . '/' . $readdir)) {
                if (!@unlink($dir . '/' . $readdir)) {
                    return false;
                }
            } else {
                if (is_dir($dir . '/' . $readdir)) {
                    /* calls itself to clear subdirectories */
                    if (!clr_dir($dir . '/' . $readdir)) {
                        return false;
                    }
                }
            }
        }
    }
    /* end while */
    @closedir($opendir);
    if (!@rmdir($dir)) {
        return false;
    }
    return true;
}

function backups_delete($course)
{
    global $db;
    $path = AT_BACKUP_DIR . $course . '/';
    clr_dir($path);
    $sql = "DELETE FROM " . TABLE_PREFIX . "backups WHERE course_id={$course}";
    $result = mysql_query($sql, $db);
}

function chat_delete($course)
{
    global $db;
    $path = AT_CONTENT_DIR . 'chat/' . $course . '/';
    if (is_dir($path)) {
        clr_dir($path);
    }
}

function backups_delete($course)
{
    global $db;
    $path = AT_BACKUP_DIR . $course . '/';
    clr_dir($path);
    $sql = "DELETE FROM %sbackups WHERE course_id=%d";
    $result = queryDB($sql, array(TABLE_PREFIX, $course));
}

function basiclti_delete($course)
{
    global $db;
    // delete basiclti course table entries
    $sql = "DELETE FROM %sbasiclti_content WHERE course_id=%d";
    queryDB($sql, array(TABLE_PREFIX, $course));
    // delete basiclti course files
    $path = AT_CONTENT_DIR . 'basiclti/' . $course . '/';
    clr_dir($path);
}

function basiclti_delete($course)
{
    global $db;
    // delete basiclti course table entries
    $sql = "DELETE FROM " . TABLE_PREFIX . "basiclti WHERE course_id={$course}";
    mysql_query($sql, $db);
    // delete basiclti course files
    $path = AT_CONTENT_DIR . 'basiclti/' . $course . '/';
    clr_dir($path);
}

function clear_dir($dir)
{
    if ($dh = opendir($dir)) {
        while (($file = readdir($dh)) !== false) {
            if ($file == '.' || $file == '..') {
                continue;
            }
            if (is_dir($dir . $file)) {
                clr_dir($dir . $file);
            } else {
                unlink($dir . $file);
            }
        }
        closedir($dh);
    }
}

function clear_dir($dir)
{
	if ($dh = opendir($dir)) 
	{
		while (($file = readdir($dh)) !== false)
		{
			if (($file == '.') || ($file == '..'))
				continue;

			if (is_dir($dir.$file)) 
				clr_dir($dir.$file);
			else 
				unlink($dir.$file);
		}
		
		closedir($dh);
	}
}

/* modify it under the terms of the GNU General Public License  */
/* as published by the Free Software Foundation.				*/
/****************************************************************/
// $Id$
define('AT_INCLUDE_PATH', '../include/');
require AT_INCLUDE_PATH . 'vitals.inc.php';
admin_authenticate(AT_ADMIN_PRIV_ADMIN);
if (isset($_POST['submit_no'])) {
    $msg->addFeedback('CANCELLED');
    header('Location: ./error_logging.php');
    exit;
} else {
    if (isset($_POST['submit_yes'])) {
        //clean up the db
        require_once AT_INCLUDE_PATH . '../mods/_core/file_manager/filemanager.inc.php';
        if ($result = clr_dir(AT_CONTENT_DIR . 'logs/')) {
            $msg->addFeedback('ERROR_LOG_RESET');
        } else {
            $msg->addError('ERROR_LOG_NOT_RESET');
        }
        header('Location: ./error_logging.php');
        exit;
    }
}
require AT_INCLUDE_PATH . 'header.inc.php';
//print confirmation
$hidden_vars['all'] = TRUE;
$confirm = array('RESET_ERROR_LOG', $_SERVER['PHP_SELF']);
$msg->addConfirm($confirm, $hidden_vars);
$msg->printConfirm();
require AT_INCLUDE_PATH . 'footer.inc.php';

 function restore_files()
 {
     $sql = "SELECT max_quota FROM " . TABLE_PREFIX . "courses WHERE course_id={$this->course_id}";
     $result = mysql_query($sql, $this->db);
     $row = mysql_fetch_assoc($result);
     if ($row['max_quota'] != AT_COURSESIZE_UNLIMITED) {
         global $MaxCourseSize, $MaxCourseFloat;
         if ($row['max_quota'] == AT_COURSESIZE_DEFAULT) {
             $row['max_quota'] = $MaxCourseSize;
         }
         $totalBytes = dirsize($this->import_dir . 'content/');
         $course_total = dirsize(AT_CONTENT_DIR . $this->course_id . '/');
         $total_after = $row['max_quota'] - $course_total - $totalBytes + $MaxCourseFloat;
         if ($total_after < 0) {
             //debug('not enough space. delete everything');
             // remove the content dir, since there's no space for it
             clr_dir($this->import_dir);
             return FALSE;
         }
     }
     copys($this->import_dir . 'content/', AT_CONTENT_DIR . $this->course_id);
 }

function delete_theme ($theme_dir) {
	global $msg, $db;

	//check status
	$sql    = "SELECT status FROM ".TABLE_PREFIX."themes WHERE dir_name='$theme_dir'";
	$result = mysql_query ($sql, $db);
	$row    = mysql_fetch_assoc($result);
	$status = intval($row['status']);

	//can't delete original default or current default theme
	if (($theme_dir == 'default') || ($status == 2)) {
		$msg->addError('THEME_NOT_DELETED');
		return FALSE;

	} else {	//disable, clear directory and delete theme from db

		require_once(AT_INCLUDE_PATH.'../mods/_core/file_manager/filemanager.inc.php'); /* for clr_dir() */
		if ($status != 0) {
			disable_theme($theme_dir);
			$msg->deleteFeedback('THEME_DISABLED');
		}

		$dir = '../../../themes/' . $theme_dir;
		//chmod($dir, 0777);
		@clr_dir($dir);

		$sql1    = "DELETE FROM ".TABLE_PREFIX."themes WHERE dir_name = '$theme_dir'";
		$result1 = mysql_query ($sql1, $db);

		write_to_log(AT_ADMIN_LOG_DELETE, 'themes', mysql_affected_rows($db), $sql);

		$msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
		return TRUE;
	}
}

 /** 
  * Delete an album and all associations
  */
 function deleteAlbum()
 {
     //TODO Error checking on each step, if anyone fails, should report it to user
     global $db;
     $id = $this->id;
     //clean directory
     $sql = 'SELECT created_date FROM ' . TABLE_PREFIX . "pa_albums WHERE id={$id}";
     $result = mysql_query($sql, $db);
     if ($result) {
         $row = mysql_fetch_assoc($result);
     }
     $filepath = AT_PA_CONTENT_DIR . getAlbumFilePath($id, $row['created_date']);
     //orig
     $filepath_tn = $filepath . '_tn';
     //thumbnails
     //delete files
     if (is_dir($filepath) && is_dir($filepath_tn)) {
         clr_dir($filepath);
         clr_dir($filepath_tn);
     }
     //delete all photo comments
     $sql = 'DELETE c.* FROM ' . TABLE_PREFIX . 'pa_photo_comments c LEFT JOIN ' . TABLE_PREFIX . "pa_photos p ON c.photo_id=p.id WHERE p.album_id={$id}";
     mysql_query($sql, $db);
     //delete all photos within this album
     $sql = "DELETE FROM " . TABLE_PREFIX . "pa_photos WHERE album_id={$id}";
     mysql_query($sql, $db);
     //delete all album comments
     $sql = 'DELETE FROM ' . TABLE_PREFIX . "pa_album_comments WHERE album_id={$id}";
     mysql_query($sql, $db);
     //delete album
     $sql = "DELETE FROM " . TABLE_PREFIX . "pa_albums WHERE id={$id}";
     mysql_query($sql, $db);
 }

 * a web browser. It will only execute if required from within an ATutor script,
 * in our case the Module::uninstall() method.
 */
if (!defined('AT_INCLUDE_PATH')) { exit; }

/********
 * the following code is used for removing a module-specific directory created in module_install.php.
 * it generates appropriate error messages to aid in its creation.
 */
$directory = AT_CONTENT_DIR .'bigbluebutton';

// check if the directory exists
if (is_dir($directory)) {
	require(AT_INCLUDE_PATH.'../mods/_core/file_manager/filemanager.inc.php');

	if (!clr_dir($directory))
		$msg->addError(array('MODULE_UNINSTALL', '<li>'.$directory.' can not be removed. Please manually remove it.</li>'));
}

/******
 * the following code checks if there are any errors (generated previously)
 * then uses the SqlUtility to run reverted database queries of module.sql, 
 * ie. "create table" statement in module.sql is run as drop according table.
 */
if (!$msg->containsErrors() && file_exists(dirname(__FILE__) . '/module.sql')) {
	// deal with the SQL file:
	require(AT_INCLUDE_PATH . 'classes/sqlutility.class.php');
	$sqlUtility = new SqlUtility();

	/*
	 * the SQL file could be stored anywhere, and named anything, "module.sql" is simply

/**
* Imports a theme from a URL or Zip file to Atutor
* @access  private
* @author  Shozub Qureshi
*/
function import_theme()
{
    global $db;
    global $msg;
    if (isset($_POST['url']) && $_POST['url'] != 'http://') {
        if ($content = @file_get_contents($_POST['url'])) {
            // save file to /themes/
            $filename = pathinfo($_POST['url']);
            $filename = $filename['basename'];
            $full_filename = AT_CONTENT_DIR . '/' . $filename;
            if (!($fp = fopen($full_filename, 'w+b'))) {
                //Cannot open file ($filename)";
                $errors = array('CANNOT_OPEN_FILE', $filename);
                $msg->addError($errors);
                header('Location: index.php');
                exit;
            }
            if (fwrite($fp, $content, strlen($content)) === FALSE) {
                //"Cannot write to file ($filename)";
                $errors = array('CANNOT_WRITE_FILE', $filename);
                $msg->addError($errors);
                header('Location: index.php');
                exit;
            }
            fclose($fp);
        }
        $_FILES['file']['name'] = $filename;
        $_FILES['file']['tmp_name'] = $full_filename;
        $_FILES['file']['size'] = strlen($content);
        unset($content);
        $url_parts = pathinfo($_POST['url']);
        $package_base_name_url = $url_parts['basename'];
    }
    $ext = pathinfo($_FILES['file']['name']);
    $ext = $ext['extension'];
    //error in the file
    if ($_FILES['file']['error'] == 1) {
        $errors = array('FILE_MAX_SIZE', ini_get('upload_max_filesize'));
        $msg->addError($errors);
        header('Location: index.php');
        exit;
    }
    //If file has no name or no address or if the extension is not .zip
    if (!$_FILES['file']['name'] || !is_uploaded_file($_FILES['file']['tmp_name']) && !$_POST['url']) {
        $msg->addError('FILE_NOT_SELECTED');
        header('Location: index.php');
        exit;
    }
    if ($ext != 'zip') {
        $msg->addError('IMPORT_NOT_PROPER_FORMAT');
        header('Location: index.php');
        exit;
    }
    //check if file size is ZERO
    if ($_FILES['file']['size'] == 0) {
        $msg->addError('IMPORTFILE_EMPTY');
        header('Location: index.php');
        exit;
    }
    // new directory name is the filename minus the extension
    $fldrname = substr($_FILES['file']['name'], 0, -4);
    $fldrname = str_replace(' ', '_', $fldrname);
    $import_path = AT_SUBSITE_THEME_DIR . $fldrname;
    //check if Folder by that name already exists
    if (is_dir($import_path)) {
        $i = 1;
        while (is_dir($import_path . '_' . $i)) {
            $i++;
        }
        $fldrname = $fldrname . '_' . $i;
        $import_path = $import_path . '_' . $i;
    }
    //if folder does not exist previously
    if (!@mkdir($import_path, 0700)) {
        $msg->addError('IMPORTDIR_FAILED');
        header('Location: index.php');
        exit;
    }
    // unzip file and save into directory in themes
    $archive = new PclZip($_FILES['file']['tmp_name']);
    //extract contents to importpath/foldrname
    if (!$archive->extract($import_path)) {
        $errors = array('IMPORT_ERROR_IN_ZIP', $archive->errorInfo(true));
        clr_dir($import_path);
        $msg->addError($errors);
        header('Location: index.php');
        exit;
    }
    $handle = opendir($import_path);
    while ($file = readdir($handle)) {
        if (is_dir($import_path . '/' . $file) && $file != '.' && $file != '..') {
            $folder = $file;
        }
    }
    //copy contents from importpath/foldrname to importpath
//.........这里部分代码省略.........

// module content folder
$module_content_folder = AT_CONTENT_DIR . "module/";

if (isset($_GET["mod"])) $mod = str_replace(array('.','..'), '', $_GET['mod']);
else if (isset($_POST["mod"])) $mod = $_POST["mod"];

if (isset($_GET["new"])) $new = $_GET["new"];
else if (isset($_POST["new"])) $new = $_POST["new"];

if (isset($_GET["permission_granted"])) $permission_granted = $_GET["permission_granted"];
else if (isset($_POST["permission_granted"])) $permission_granted = $_POST["permission_granted"];

if (isset($_POST['submit_no']))
{
	clr_dir('../../../mods/'.$_POST['mod']);
	
	// if write permission on the mods folder has been granted, re-direct to the page of removing permission,
	// otherwise, back to start page.
	if ($_POST['permission_granted']==1)
		header('Location: '.AT_BASE_HREF.'mods/_core/modules/module_install_step_3.php?cancelled=1');
	else
	{
		$msg->addFeedback('CANCELLED');
		header('Location: '.AT_BASE_HREF.'mods/_core/modules/install_modules.php');
	}
	
	exit;
} 
else if (isset($_POST['submit_yes'])) 
{