/Quản lý website trường trung học phổ thông PHP/lc1/admin/modules/upload/functions.php

<?php

/**
 * @Project NUKEVIET 3.0
 * @Author VINADES.,JSC (contact@vinades.vn)
 * @copyright 2009
 * @createdate 12/31/2009 2:29
 */

if ( ! defined( 'NV_ADMIN' ) or ! defined( 'NV_MAINFILE' ) or ! defined( 'NV_IS_MODADMIN' ) ) die( 'Stop!!!' );

if ( $module_name != "upload" ) return;

define( 'NV_IS_FILE_ADMIN', true );
$allow_func = array( 'main', 'imglist', 'delimg', 'createimg', 'dlimg', 'renameimg', 'moveimg', 'folderlist', 'delfolder', 'renamefolder', 'createfolder', 'quickupload', 'upload' );

#################################################################################

/**
 * nv_check_allow_upload_dir()
 * 
 * @param mixed $dir
 * @return
 */
function nv_check_allow_upload_dir( $dir )
{
    global $site_mods, $allow_upload_dir, $admin_info;

    $dir = trim( $dir );
    if ( empty( $dir ) ) return array();

    $dir = str_replace( "\\", "/", $dir );
    $dir = rtrim( $dir, "/" );
    $arr_dir = explode( "/", $dir );
    $level = array();

    if ( in_array( $arr_dir[0], $allow_upload_dir ) )
    {

        if ( defined( 'NV_IS_SPADMIN' ) )
        {
            $level['view_dir'] = true;

            if ( $admin_info['allow_create_subdirectories'] )
            {
                $level['create_dir'] = true;
            }
            if ( $admin_info['allow_modify_subdirectories'] and ! in_array( $dir, $allow_upload_dir ) )
            {
                $level['rename_dir'] = true;
                $level['delete_dir'] = true;

                if ( isset( $arr_dir[1] ) and ! empty( $arr_dir[1] ) and isset( $site_mods[$arr_dir[1]] ) and ! isset( $arr_dir[2] ) )
                {
                    unset( $level['rename_dir'], $level['delete_dir'] );
                }
            }
            if ( ! empty( $admin_info['allow_files_type'] ) )
            {
                $level['upload_file'] = true;
            }
            if ( $admin_info['allow_modify_files'] )
            {
                $level['create_file'] = true;
                $level['rename_file'] = true;
                $level['delete_file'] = true;
                $level['move_file'] = true;
            }
        } elseif ( isset( $arr_dir[1] ) and ! empty( $arr_dir[1] ) and isset( $site_mods[$arr_dir[1]] ) )
        {
            $level['view_dir'] = true;

            if ( $admin_info['allow_create_subdirectories'] )
            {
                $level['create_dir'] = true;
            }
            if ( isset( $arr_dir[2] ) and ! empty( $arr_dir[2] ) and $admin_info['allow_modify_subdirectories'] )
            {
                $level['rename_dir'] = true;
                $level['delete_dir'] = true;
            }
            if ( ! empty( $admin_info['allow_files_type'] ) )
            {
                $level['upload_file'] = true;
            }
            if ( $admin_info['allow_modify_files'] )
            {
                $level['create_file'] = true;
                $level['rename_file'] = true;
                $level['delete_file'] = true;
                $level['move_file'] = true;
            }
        }

        if ( preg_match( "/^([\d]{4})\_([\d]{1,2})$/", $arr_dir[count( $arr_dir ) - 1] ) )
        {
            unset( $level['rename_dir'], $level['delete_dir'] );
        }
    }

    return $level;
}

/**
 * nv_check_path_upload()
 * 
 * @param mixed $path
 * @return
 */
function nv_check_path_upload( $path )
{
    global $allow_upload_dir;

    $path = htmlspecialchars( trim( $path ), ENT_QUOTES );
    $path = rtrim( $path, "/" );
    if ( empty( $path ) ) return "";

    $path = NV_ROOTDIR . "/" . $path;
    if ( ( $path = realpath( $path ) ) === false ) return "";

    $path = str_replace( "\\", "/", $path );
    $path = str_replace( NV_ROOTDIR . "/", "", $path );

    $result = false;
    foreach ( $allow_upload_dir as $dir )
    {
        $dir = nv_preg_quote( $dir );
        if ( preg_match( "/^" . $dir . "/", $path ) )
        {
            $result = true;
            break;
        }
    }

    if ( $result === false ) return "";
    return $path;
}

/**
 * nv_delete_cache_upload()
 * 
 * @param mixed $realpath
 * @return
 */
function nv_delete_cache_upload( $path )
{
    $tempFile = NV_ROOTDIR . "/" . NV_FILES_DIR . "/dcache/" . md5( $path );
    if ( file_exists( $tempFile ) )
    {
        @nv_deletefile( $tempFile );
    }

    $files = scandir( NV_ROOTDIR . '/' . $path );
    $files = array_diff( $files, array( ".", ".." ) );
    if ( count( $files ) )
    {
        foreach ( $files as $file )
        {
            if ( is_dir( NV_ROOTDIR . '/' . $path . '/' . $file ) )
            {
                nv_delete_cache_upload( $path . '/' . $file );
            }
            else
            {
                $md5_view_image = NV_ROOTDIR . "/" . NV_FILES_DIR . "/images/" . md5( $path . '/' . $file ) . "." . nv_getextension( $file );
                if ( file_exists( $md5_view_image ) )
                {
                    @nv_deletefile( $md5_view_image );
                }
            }
        }
    }
}

/**
 * nv_get_viewImage()
 * 
 * @param mixed $fileName
 * @param integer $w
 * @param integer $h
 * @return
 */
function nv_get_viewImage( $fileName, $w = 80, $h = 80 )
{
    $ext = nv_getextension( $fileName );
    $md5_view_image = md5( $fileName );
    $viewDir = NV_FILES_DIR . '/images';
    $viewFile = $viewDir . '/' . $md5_view_image . '.' . $ext;

    if ( file_exists( NV_ROOTDIR . '/' . $viewFile ) )
    {
        $size = @getimagesize( NV_ROOTDIR . '/' . $viewFile );
        return array( $viewFile, $size[0], $size[1] );
    }

    include_once ( NV_ROOTDIR . "/includes/class/image.class.php" );
    $image = new image( NV_ROOTDIR . '/' . $fileName, NV_MAX_WIDTH, NV_MAX_HEIGHT );
    $image->resizeXY( $w, $h );
    $image->save( NV_ROOTDIR . '/' . $viewDir, $md5_view_image, 75 );
    $create_Image_info = $image->create_Image_info;
    $error = $image->error;
    $image->close();
    if ( empty( $error ) )
    {
        return array( $viewFile, $create_Image_info['width'], $create_Image_info['height'] );
    }

    return false;
}

/**
 * nv_getFileInfo()
 * 
 * @param mixed $pathimg
 * @param mixed $file
 * @return
 */
function nv_getFileInfo( $pathimg, $file )
{
    global $array_images, $array_flash, $array_archives, $array_documents;

    clearstatcache();

    unset( $matches );
    preg_match( "/([a-zA-Z0-9\.\-\_]+)\.([a-zA-Z0-9]+)$/", $file, $matches );

    $info = array();
    $info[0] = $file;
    $max = 16;
    if ( strlen( $file ) > $max )
    {
        $info[0] = substr( $matches[1], 0, ( $max - 3 - strlen( $matches[2] ) ) ) . "..." . $matches[2];
    }

    $info[1] = $matches[2];
    $info[2] = "file";

    $stat = @stat( NV_ROOTDIR . '/' . $pathimg . '/' . $file );
    $info[3] = $stat['size'];

    $info[4] = 'images/file.gif';
    $info[5] = 32;
    $info[6] = 32;
    $info[7] = "|";

    if ( in_array( $matches[2], $array_images ) )
    {
        $size = @getimagesize( NV_ROOTDIR . '/' . $pathimg . '/' . $file );
        $info[2] = "image";
        $info[4] = $pathimg . '/' . $file;
        $info[5] = $size[0];
        $info[6] = $size[1];
        $info[7] = $size[0] . "|" . $size[1];

        if ( $size[0] > 80 or $size[1] > 80 )
        {
            if ( ( $_src = nv_get_viewImage( $pathimg . '/' . $file, 80, 80 ) ) !== false )
            {
                $info[4] = $_src[0];
                $info[5] = $_src[1];
                $info[6] = $_src[2];
            }
            else
            {
                if ( $info[5] > 80 )
                {
                    $info[6] = round( 80 / $info[5] * $info[6] );
                    $info[5] = 80;
                }

                if ( $info[6] > 80 )
                {
                    $info[5] = round( 80 / $info[6] * $info[5] );
                    $info[6] = 80;
                }
            }
        }
    } elseif ( in_array( $matches[2], $array_flash ) )
    {
        $info[2] = "flash";
        $info[4] = 'images/flash.gif';

        if ( $matches[2] == "swf" )
        {
            $size = @getimagesize( NV_ROOTDIR . '/' . $pathimg . '/' . $file );
            if ( isset( $size, $size[0], $size[1] ) )
            {
                $info[7] = $size[0] . "|" . $size[1];
            }
        }
    } elseif ( in_array( $matches[2], $array_archives ) )
    {
        $info[4] = 'images/zip.gif';
    } elseif ( in_array( $matches[2], $array_documents ) )
    {
        $info[4] = 'images/doc.gif';
    }

    $info[8] = 0;
    $info[9] = $stat['mtime'];

    return $info;
}

/**
 * nv_filesList()
 * 
 * @param mixed $pathimg
 * @param bool $refresh
 * @param string $newFile
 * @return
 */
function nv_filesList( $pathimg, $refresh, $newFile = "", $delFile = "" )
{
    global $array_hidefolders, $admin_info;

    $md5 = md5( $pathimg );
    $tempFile = NV_ROOTDIR . "/" . NV_FILES_DIR . "/dcache/" . $md5;
    $file_exists = file_exists( $tempFile );
    $results = array();

    if ( $file_exists )
    {
        $results = file_get_contents( $tempFile );
        $results = unserialize( $results );
    }
    else
    {
        $refresh = true;
    }

    if ( is_dir( NV_ROOTDIR . "/" . $pathimg ) )
    {
        if ( $refresh )
        {
            if ( $dh = opendir( NV_ROOTDIR . "/" . $pathimg ) )
            {
                $files = array();
                while ( ( $file = readdir( $dh ) ) !== false )
                {
                    if ( in_array( $file, $array_hidefolders ) ) continue;

                    if ( preg_match( "/([a-zA-Z0-9\.\-\_]+)\.([a-zA-Z0-9]+)$/", $file ) )
                    {
                        $files[] = $file;

                        $info = nv_getFileInfo( $pathimg, $file );
                        if ( ! empty( $newFile ) and $file == $newFile )
                        {
                            $info[8] = $admin_info['userid'];
                            $info[9] = NV_CURRENTTIME;
                        }
                        else
                        {
                            if ( isset( $results[$file][8] ) ) $info[8] = $results[$file][8];
                            if ( isset( $results[$file][9] ) ) $info[9] = $results[$file][9];
                        }

                        $results[$file] = $info;
                    }
                }
                closedir( $dh );

                $files = array_flip( $files );
                $results = array_intersect_key( $results, $files );
            }
            ksort( $results );
            file_put_contents( $tempFile, serialize( $results ) );
        }
        else
        {
            if ( ! empty( $newFile ) )
            {
                $info = nv_getFileInfo( $pathimg, $newFile );
                $info[8] = $admin_info['userid'];
                $info[9] = NV_CURRENTTIME;

                $results[$newFile] = $info;
                ksort( $results );
                file_put_contents( $tempFile, serialize( $results ) );
            }

            if ( ! empty( $delFile ) )
            {
                unset( $results[$delFile] );
                file_put_contents( $tempFile, serialize( $results ) );
            }
        }
    }

    return $results;
}

$allow_upload_dir = array( 'images', NV_UPLOADS_DIR );
$array_hidefolders = array( ".svn", "CVS", ".", "..", "index.html", ".htaccess", ".tmp" );

$array_images = array( "gif", "jpg", "jpeg", "pjpeg", "png" );
$array_flash = array( 'swf', 'swc', 'flv' );
$array_archives = array( 'rar', 'zip', 'tar' );
$array_documents = array( 'doc', 'xls', 'chm', 'pdf', 'docx', 'xlsx' );

$dirlistCache = NV_ROOTDIR . "/" . NV_FILES_DIR . "/dcache/dirlist-" . md5( implode( $allow_upload_dir ) );
if ( ! file_exists( $dirlistCache ) or ( $nv_Request->isset_request( 'dirListRefresh', 'get' ) and filemtime( $dirlistCache ) < ( NV_CURRENTTIME - 30 ) ) )
{
    $dirlist = nv_loadUploadDirList();
}
else
{
    $dirlist = file_get_contents( $dirlistCache );
    $dirlist = unserialize( $dirlist );
}

?>