Sindbad~EG File Manager

<?php
/*
 * Security 	: blocking direct access
 * Source		: http://codex.wordpress.org/Theme_Development#Template_Files
*/
defined('ABSPATH') or die("Access Restricted");

/*
 * Images
 * Caption Filter
*/
add_filter('img_caption_shortcode', 'dap_responsive_img_caption_filter', 10, 3 );
add_filter('img_caption_shortcode', 'dap_responsive_img_caption_filter', 1, 3 );
function dap_responsive_img_caption_filter( $val, $attr, $content = null ) { 
	extract(shortcode_atts( array( 
		'id' 		=> '', 
		'align' 	=> '', 
		'width' 	=> '', 
		'caption'	=> '' 
    ), $attr));
	
	if ( 1 > (int) $width || empty($caption) ) 
		return $val;
		
	if ( $id ) $id = 'id="' . esc_attr($id) . '" ';
		return '<figure class="wp-caption ' . esc_attr($align) . '" style="width: ' . (10 + (int) $width) . 'px">' . do_shortcode( $content ) . '<figcaption class="wp-caption-text">' . $caption . '</figcaption></figure>'; 

}
/*
 * Disable responsive image support
 * http://wordpress.stackexchange.com/a/211376/40961
 *
*/
function mwp_responsive_img_support( $attr ){
    if( isset( $attr['sizes'] ) )
        unset( $attr['sizes'] );
    if( isset( $attr['srcset'] ) )
        unset( $attr['srcset'] );
    return $attr;
}
remove_filter('the_content', 'wp_make_content_images_responsive' );
add_filter('wp_get_attachment_image_attributes', 'mwp_responsive_img_support', PHP_INT_MAX );
add_filter('wp_calculate_image_sizes', '__return_false',  PHP_INT_MAX );
add_filter('wp_calculate_image_srcset', '__return_false', PHP_INT_MAX );
/*
 * LightBox Filter
 *
*/
add_filter('the_content', 'add_class_lightbox', 12);
function add_class_lightbox($content){
	if ( class_exists( 'Jetpack' ) && Jetpack::is_module_active( 'carousel' ) ) :	
	elseif (mwp_option('lightbox-enable') == 1) :
		global $post;
		$pattern = "/<a(.*?)href=('|\")([^>]*).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>(.*?)<\/a>/i";
		if (mwp_option('lightbox-library') == 1) :
			$replacement = '<a$1href=$2$3.$4$5 data-rel="gallery-1" class="swipebox">$7</a>';
		elseif (mwp_option('lightbox-library') == 2) :
			$replacement = '<a$1href=$2$3.$4$5 data-lightbox="roadtrip" data-group="group"$6>$7</a>';
		elseif (mwp_option('lightbox-library') == 3) :
			$replacement = '<a$1href=$2$3.$4$5 class="venobox" data-gall="myGallery">$7</a>';
		endif;	
		$content = preg_replace($pattern, $replacement, $content);
		return $content;
	else :
		return $content;
	endif;
}

/**
 * Images
 * Lazy Load Filter
*/
if (mwp_option('lazyload-mobile') == 1) :
	add_filter('the_content', 'mwp_lazyload', 999999);
	function mwp_lazyload($content) {
		if ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ) :
			return $content;
		else :
			return preg_replace_callback('/(<\s*img[^>]+)(src\s*=\s*"[^"]+")([^>]+>)/i', 'mwp_preg_lazyload', $content);
		endif;
	}
	function mwp_preg_lazyload($img_match) {
		$img_blank 		= 'data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==';
		$img_replace 	= $img_match[1] . 'src="' .$img_blank. '" data-src' . substr($img_match[2], 3) . $img_match[3];
		$img_replace 	= preg_replace('/class\s*=\s*"/i', 'class="lazy ', $img_replace);
		return $img_replace;	
	}
endif;
/*	
 * Auto remove first image from posts
 *
*/
add_filter('the_content', 'mwp_remove_first_image');
function mwp_remove_first_image($content) {
	if (mwp_option('first-image-remove') == 1) :
		$get_categories_ids = mwp_option('remove-post-thumbnail');
		if (!is_singular('page') && !is_feed() && !is_home() && is_singular() && !in_category($get_categories_ids) ) {
			$content = preg_replace("/<img[^>]+\>/i", "", $content, 1);
		}
	endif;
	return $content;
}
/*
 * Remove rel=attachment wp-att-XXx html5 Validation
 *
*/
add_filter('the_content', 'mwp_remove_rel_attr');
function mwp_remove_rel_attr($content) {
    return preg_replace('/\s+rel="attachment wp-att-[0-9]+"/i', '', $content);
}
/*
 * wrap image inside div
 *
*/
add_filter('the_content', 'mwp_img_unautop', 30 );
function mwp_img_unautop($content) {
	$content = preg_replace('/<p>\\s*?(<a .*?><img.*?><\\/a>|<img.*?>)?\\s*<\\/p>/s', '<div>$1</div>', $content);
	return $content;
}

/*
 * repair alternative alt text for wordpress images
 * source : https://www.mwordpress.net/repair-alternative-alt-text-for-wordpress-images/
 *
*/
add_filter('the_content', 'mwp_fill_missing_alt_tags', 0);
function mwp_fill_missing_alt_tags($content){
	
	global $post;
	preg_match_all('/<img (.*?)\/>/', $content, $images);
	$site_name 		= get_bloginfo('name');
	$char_array 	= array();
	$char_array[] 	= '-';
	$char_array[] 	= '_';
	
	if(!is_null($images)) {
		foreach($images[1] as $index => $value) {
			preg_match( '/src\s*=\s*([\'"])?((?(1).+?|[^\s>]+))(?(1)\1)/', $value, $source );
			// ALT tag : Not Found
			if(!preg_match('/alt=/', $value)) :
				$file 		= preg_replace( '/\-*(\d+)x(\d+)\.(.*)$/', ' ', $source[2] );
				$filename 	= pathinfo($file, PATHINFO_FILENAME);
				$text 		= str_replace( '/\-*(\d+)x(\d+)\.(.*)$/', ' ', $filename );
				$title 		= str_replace( $char_array, ' ', $text );
				$new_img 	= str_replace('<img', '<img alt="'.$title.' - '.$site_name.'"', $images[0][$index]);
				$content 	= str_replace($images[0][$index], $new_img, $content);
			endif;
			// ALT tag : Empty
			if(preg_match('/alt=/', $value) and strpos($value, 'alt=""')) :
				$file 		= preg_replace( '/\-*(\d+)x(\d+)\.(.*)$/', ' ', $source[2] ); 
				$filename 	= pathinfo($file, PATHINFO_FILENAME);
				$text 		= str_replace( '/\-*(\d+)x(\d+)\.(.*)$/', ' ', $filename );
				$title 		= str_replace( $char_array, ' ', $text );
				$new_img 	= str_replace('alt=""', 'alt="'.$title.' - '.$site_name.'"', $images[0][$index]);
				$content 	= str_replace($images[0][$index], $new_img, $content);
			endif;

		}
		return $content;
	}
}
/*
 * convert youtube iframe to shortcode
 *
*/
add_filter('the_content', 'mwp_youtube_covert');
function mwp_youtube_covert($content) {	
	if (function_exists( 'is_amp_endpoint' ) && is_amp_endpoint()) {
	} else {
		$content = preg_replace('#<iframe.+?src="http://www.youtube.com/embed/([a-zA-Z0-9_-]{11})["?][^>]+?></iframe>#i', '[vid id="$1" source="youtube"]', $content);
		$content = preg_replace('#<iframe.+?src="https://www.youtube.com/embed/([a-zA-Z0-9_-]{11})["?][^>]+?></iframe>#i', '[vid id="$1" source="youtube"]', $content);
	}
	return $content;
}

/*
 * Remove empty p tag
 *
*/
add_filter('the_content', 'mwp_remove_empty_p', 20, 1);
function mwp_remove_empty_p($content){
	if ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ) {
		return $content;
	} else {
		$content = force_balance_tags($content);
		return preg_replace('#<p>(\s|&nbsp;)*+(<br\s*/*>)?(\s|&nbsp;)*</p>#i', '', $content);
	}	
}

/**
 * password input for protected posts
 *
*/
add_filter('the_password_form', 'mwp_password_form' );
function mwp_password_form() {
    global $post;
    $label = 'pwbox-'.( empty( $post->ID ) ? rand() : $post->ID );
    $form_pwd = '
	<div class="protected">
		<form action="' . esc_url( site_url( 'wp-login.php?action=postpass', 'login_post' ) ) . '" method="post">
			<p class="alert alert-warning">
				<span>' . __( "To view this protected post, enter the password below : ", MWP_TEXT_DOMAIN ) . '</span>
				<label for="' . esc_attr($label) . '">' . __( "Password : " , MWP_TEXT_DOMAIN) . ' </label>
				<input class="input" name="post_password" id="' . esc_attr($label) . '" type="password" size="20" maxlength="20" />
				<input class="btn" type="submit" name="Submit" value="' . esc_attr__( "Submit" ) . '" />
			</p>
		</form>
	</div>';
    return $form_pwd;
}