/index.php

<?php
### Require Config, Setting And Function Files
require( 'config.php' );
require( 'settings.php' );
require( 'functions.php' );

### Start Timer
start_timer();

### Get And Check Current Directory Path
$url_path = ! empty( $_GET['dir'] ) ? urldecode( trim( stripslashes( $_GET['dir'] ) ) ) : '';
if( strpos( $url_path, '../' ) !== false || strpos( $url_path, './' ) !== false || strpos( $url_path, '//' ) !== false ) {
    display_error( 'Invalid Directory' );
}

### Check Whether Directory Is In The Ignore Folders
if(in_array( $url_path, $ignore_folders ) ) {
    display_error( 'Invalid Directory' );
}

### Variables Variables Variables
$get_sort_order = ! empty( $_GET['order'] ) ? trim( $_GET['order'] ) : '';
$get_sort_by = ! empty( $_GET['by'] ) ? trim( $_GET['by'] ) : '';
$full_directory_path = '';
$directories_before_current = '';
$directories_before_current_path = '';
$current_directory_name = '';
$current_directory_path = '';
$sort_order = '';
$sort_order_text = '';
$sort_by = '';
$gmz_files = [];
$gmz_directories = [];
$directory_names = explode( '/', $url_path );

### Current Directory Name
$current_directory_name = $directory_names[sizeof( $directory_names ) - 1];

### Unset Current Directory Name
unset( $directory_names[sizeof( $directory_names ) - 1] );

### Directory Path Up To Current Directory
if( ! empty( $directory_names ) ) {
    foreach( $directory_names as $directory_name ) {
        $directories_before_current .= $directory_name.'/';
    }
    $directories_before_current = substr( $directories_before_current, 0, -1 );
}

### If No Directory Is Specified
if( empty( $url_path) ) {
    $full_directory_path = GFE_ROOT_DIR;
} else {
    $full_directory_path = GFE_ROOT_DIR . '/' . $url_path;
}

### If Current Directory Is Not Empty, Add A Trailing Slash
if( ! empty( $current_directory_name ) ) {
    $current_directory_path = $current_directory_name . '/';
}

### If There Is Directory Before The Current Directory, Add A Trailing Slash
if( ! empty( $directories_before_current ) ) {
    $directories_before_current_path = $directories_before_current . '/';
}

### Full URL
$full_url = GFE_ROOT_URL . '/' . $directories_before_current_path . $current_directory_path;

### Determine Sort Order
if( empty( $get_sort_order ) ) {
    $get_sort_order = GFE_DEFAULT_SORT_ORDER;
}
switch( $get_sort_order ) {
    case 'asc':
        $sort_order = SORT_ASC;
        $sort_order_text = 'Ascending';
        break;
    case 'desc':
    default:
        $sort_order = SORT_DESC;
        $sort_order_text = 'Descending';
}

### Determine Sort By
if( empty( $get_sort_by ) ) {
    $get_sort_by = GFE_DEFAULT_SORT_BY;
}
switch( $get_sort_by ) {
    case 'name':
    case 'size':
    case 'type':
    case 'date':
        $sort_by = $get_sort_by;
        break;
    default:
        $sort_by = 'date';
}

### Execute The Function To List Files/Directories, It Will Return An Array
list_directories_files( $full_directory_path );

### Sort The Array
if( $sort_by === 'name' ) {
    $gmz_files = array_alphabetsort( $gmz_files, $sort_by, $sort_order );
    $gmz_directories = array_alphabetsort( $gmz_directories, $sort_by, $sort_order );
} elseif( $sort_by === 'type' ) {
    $gmz_files = array_alphabetsort( $gmz_files, $sort_by, $sort_order );
} else {
    usort( $gmz_files, 'array_numbersort' );
    usort( $gmz_directories, 'array_numbersort' );
    if( $sort_order === SORT_DESC ) {
        $gmz_files = array_reverse( $gmz_files );
        $gmz_directories = array_reverse( $gmz_directories );
    }
}
?>
<?php template_header( ! empty( $current_directory_name ) ? ' - Viewing Directory - ' . $current_directory_name : '' ); ?>

<!-- List Directories/Files -->
<div class="table-responsive">
    <table class="table table-sm table-hover">
        <thead class="thead-default">
            <tr>
                <th style="width: 50%;" onclick="parent.location.href='<?php echo create_sort_url( 'name' ); ?>';" onmouseover="this.style.cursor = 'pointer';" title="Sort By Name">Name&nbsp;<?php echo create_sort_image( 'name' ); ?></th>
                <th style="width: 10%;" onclick="parent.location.href='<?php echo create_sort_url( 'size' ); ?>';" onmouseover="this.style.cursor = 'pointer';" title="Sort By Size">Size&nbsp;<?php echo create_sort_image( 'size' ); ?></th>
                <th style="width: 20%;" onclick="parent.location.href='<?php echo create_sort_url( 'type' ); ?>';" onmouseover="this.style.cursor = 'pointer';" title="Sort By Type">Type&nbsp;<?php echo create_sort_image( 'type' ); ?></th>
                <th style="width: 20%;" onclick="parent.location.href='<?php echo create_sort_url( 'date' ); ?>';" onmouseover="this.style.cursor = 'pointer';" title="Sort By Date">Date&nbsp;<?php echo create_sort_image( 'date' ); ?></th>
            </tr>
        </thead>
        <tbody>
            <?php
                // If It Is Down One Level, Provide "Up One Level"
                if( ! empty( $url_path ) ) {
                    if( ! empty( $directory_names ) ) {
                        $parent_directory = $directories_before_current;
                    } else {
                        $parent_directory = 'home';
                    }
                    echo '<tr class="table-warning">';
                    echo '<td colspan="4"><a href="' . url( $parent_directory, 'dir' ) . '" title="Parent Directory"><i class="fa fa-chevron-left"></i>&nbsp;Parent Directory</a></td>';
                    echo '</tr>';
                }
                // If There Is Directory
                if( ! empty( $gmz_directories ) ) {
                    foreach( $gmz_directories as $key => $value ) {
                        $directory_name = $value['name'];
                        $directory_size = format_size( $value['size'] );
                        $directory_date = date( 'jS F Y', $value['date'] );
                        echo '<tr>';
                        echo '<td><a href="' . url( $directories_before_current_path . $current_directory_path . $directory_name, 'dir' ) . '" title="Folder: ' . $directory_name.' (' . $directory_size . ')"><i class="fa fa-fw fa-folder"></i>&nbsp;' . $directory_name . '</a></td>';
                        echo '<td>' . $directory_size . '</td>';
                        echo '<td>File Folder</td>';
                        echo '<td>' . $directory_date . '</td>';
                        echo '</tr>';
                    }
                }
                // If There Is Files
                if( ! empty( $gmz_files ) ) {
                    foreach( $gmz_files as $key => $value ) {
                        $file_name = $value['name'];
                        $file_size = format_size( $value['size'] );
                        $file_date = date( 'jS F Y', $value['date'] );
                        $file_extension = $value['type'];
                        echo '<tr>';
                        echo '<td><a href="' . url( $directories_before_current_path . $current_directory_path . $file_name, 'file' ) . '" title="File: ' . $file_name . ' ('. $file_size . ')"><i class="fa fa-fw ' . file_icon( $value['ext'] ) . '"></i>&nbsp;' . $file_name . '</a></td>';
                        echo '<td>' . $file_size . '</td>';
                        echo '<td>' . $file_extension . '</td>';
                        echo '<td>' . $file_date . '</td>';
                        echo '</tr>';
                    }
                } else {
                    echo '<tr class="table-info"><td class="text-center" colspan="4">No files found.</td></tr>';
                }
                // Folder And File Stats Variables
                $total_folders = sizeof( $gmz_directories );
                $total_files = sizeof( $gmz_files );
                $total_size = format_size( dir_size( $full_directory_path ) );
                $total_folders_name = ( $total_folders > 1 ? 'folders' : 'folder' );
                $total_files_name = ( $total_files > 1 ? 'files' : 'file' );
                $total_folders_files = $total_folders .' '. $total_folders_name . ', ' . $total_files . ' ' . $total_files_name;
            ?>
        </tbody>
        <tfoot>
            <tr>
                <td><strong><?php echo $total_folders_files; ?></strong></td>
                <td><strong><?php echo $total_size; ?></strong></td>
                <td>-</td>
                <td>-</td>
            </tr>
        </tfoot>
    </table>
</div>
<?php template_footer(); ?>