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<?php
// Added by WarmStal
if(!is_admin())
	return;

require_once (dirname(__FILE__).'/duplicate-post-options.php');

require_once (dirname(__FILE__).'/compat/duplicate-post-wpml.php');
require_once (dirname(__FILE__).'/compat/duplicate-post-jetpack.php');

/**
 * Wrapper for the option 'duplicate_post_version'
*/
function duplicate_post_get_installed_version() {
	return get_option( 'duplicate_post_version' );
}

/**
 * Wrapper for the defined constant DUPLICATE_POST_CURRENT_VERSION
 */
function duplicate_post_get_current_version() {
	return DUPLICATE_POST_CURRENT_VERSION;
}


add_action('admin_init','duplicate_post_admin_init');

function duplicate_post_admin_init(){
	duplicate_post_plugin_upgrade();
	
	if (get_option('duplicate_post_show_row') == 1){
		add_filter('post_row_actions', 'duplicate_post_make_duplicate_link_row',10,2);
		add_filter('page_row_actions', 'duplicate_post_make_duplicate_link_row',10,2);
	}
	
	if (get_site_option('duplicate_post_show_notice') == 1){
		if(is_multisite()){
			add_action( 'network_admin_notices', 'duplicate_post_show_update_notice' );
		} else {
			add_action( 'admin_notices', 'duplicate_post_show_update_notice' );
		}
		add_action( 'wp_ajax_duplicate_post_dismiss_notice', 'duplicate_post_dismiss_notice' );
	}
	
	if (get_option('duplicate_post_show_submitbox') == 1){
		add_action( 'post_submitbox_start', 'duplicate_post_add_duplicate_post_button' );
	}
	
	/**
	 * Connect actions to functions
	 */
	add_action('admin_action_duplicate_post_save_as_new_post', 'duplicate_post_save_as_new_post');
	add_action('admin_action_duplicate_post_save_as_new_post_draft', 'duplicate_post_save_as_new_post_draft');
	
	add_filter('removable_query_args', 'duplicate_post_add_removable_query_arg', 10, 1);
	
	// Using our action hooks
	
	add_action('dp_duplicate_post', 'duplicate_post_copy_post_meta_info', 10, 2);
	add_action('dp_duplicate_page', 'duplicate_post_copy_post_meta_info', 10, 2);
	
	if(get_option('duplicate_post_copychildren') == 1){
		add_action('dp_duplicate_post', 'duplicate_post_copy_children', 20, 3);
		add_action('dp_duplicate_page', 'duplicate_post_copy_children', 20, 3);
	}
	
	if(get_option('duplicate_post_copyattachments') == 1){
		add_action('dp_duplicate_post', 'duplicate_post_copy_attachments', 30, 2);
		add_action('dp_duplicate_page', 'duplicate_post_copy_attachments', 30, 2);
	}
	
	if(get_option('duplicate_post_copycomments') == 1){
		add_action('dp_duplicate_post', 'duplicate_post_copy_comments', 40, 2);
		add_action('dp_duplicate_page', 'duplicate_post_copy_comments', 40, 2);
	}
	
	add_action('dp_duplicate_post', 'duplicate_post_copy_post_taxonomies', 50, 2);
	add_action('dp_duplicate_page', 'duplicate_post_copy_post_taxonomies', 50, 2);
	
	add_filter('plugin_row_meta', 'duplicate_post_add_plugin_links', 10, 2);
	
	add_action( 'admin_notices', 'duplicate_post_action_admin_notice' );
}


/**
 * Plugin upgrade
 */
function duplicate_post_plugin_upgrade() {
	$installed_version = duplicate_post_get_installed_version();
	
	if ( $installed_version == duplicate_post_get_current_version() )
		return;

		
	if (empty($installed_version)) {
		// Get default roles
			$default_roles = array(
				3 => 'editor',
				8 => 'administrator',
		);
		
		// Cycle all roles and assign capability if its level >= duplicate_post_copy_user_level
		foreach ($default_roles as $level => $name){
			$role = get_role($name);
			if(!empty($role)) $role->add_cap( 'copy_posts' );
		}
	} else {
		$min_user_level = get_option('duplicate_post_copy_user_level');
			
		if (!empty($min_user_level)){
			// Get default roles
			$default_roles = array(
					1 => 'contributor',
					2 => 'author',
					3 => 'editor',
					8 => 'administrator',
			);
				
			// Cycle all roles and assign capability if its level >= duplicate_post_copy_user_level
			foreach ($default_roles as $level => $name){
				$role = get_role($name);
				if ($role && $min_user_level <= $level)
					$role->add_cap( 'copy_posts' );
			}
			delete_option('duplicate_post_copy_user_level');
		}
	}
		
	
	add_option('duplicate_post_copytitle','1');
	add_option('duplicate_post_copydate','0');
	add_option('duplicate_post_copystatus','0');
	add_option('duplicate_post_copyslug','0');
	add_option('duplicate_post_copyexcerpt','1');
	add_option('duplicate_post_copycontent','1');
	add_option('duplicate_post_copythumbnail','1');
	add_option('duplicate_post_copytemplate','1');
	add_option('duplicate_post_copyformat','1');
	add_option('duplicate_post_copyauthor','0');
	add_option('duplicate_post_copypassword','0');
	add_option('duplicate_post_copyattachments','0');
	add_option('duplicate_post_copychildren','0');
	add_option('duplicate_post_copycomments','0');
	add_option('duplicate_post_copymenuorder','1');
	add_option('duplicate_post_taxonomies_blacklist',array());
	add_option('duplicate_post_blacklist','');
	add_option('duplicate_post_types_enabled',array('post', 'page'));
	add_option('duplicate_post_show_row','1');
	add_option('duplicate_post_show_adminbar','1');
	add_option('duplicate_post_show_submitbox','1');
	add_option('duplicate_post_show_bulkactions','1');
	
	$taxonomies_blacklist = get_option('duplicate_post_taxonomies_blacklist');
	if ($taxonomies_blacklist == "") $taxonomies_blacklist = array();
	if(in_array('post_format',$taxonomies_blacklist)){
		update_option('duplicate_post_copyformat', 0);
		$taxonomies_blacklist = array_diff($taxonomies_blacklist, array('post_format'));
		update_option('duplicate_post_taxonomies_blacklist', $taxonomies_blacklist);
	}
	
	$meta_blacklist = explode(",",get_option('duplicate_post_blacklist'));
	if ($meta_blacklist == "") $meta_blacklist = array();
	$meta_blacklist = array_map('trim', $meta_blacklist);
	if(in_array('_wp_page_template', $meta_blacklist)){
		update_option('duplicate_post_copytemplate', 0);
		$meta_blacklist = array_diff($meta_blacklist, array('_wp_page_template'));	
	}	
	if(in_array('_thumbnail_id', $meta_blacklist)){
		update_option('duplicate_post_copythumbnail', 0);
		$meta_blacklist = array_diff($meta_blacklist, array('_thumbnail_id'));
	}
	update_option('duplicate_post_blacklist', implode(',',$meta_blacklist));

	delete_option('duplicate_post_admin_user_level');
	delete_option('duplicate_post_create_user_level');
	delete_option('duplicate_post_view_user_level');
	delete_option('dp_notice');
	
	delete_site_option('duplicate_post_version');
	update_option( 'duplicate_post_version', duplicate_post_get_current_version() );
	
	delete_option('duplicate_post_show_notice', 0);
	update_site_option('duplicate_post_show_notice', 1);
	
}

/**
 * Shows the update notice
 */
function duplicate_post_show_update_notice() {
	if(!current_user_can( 'manage_options')) return;
	$class = 'notice is-dismissible';
	$message = '<strong>'.sprintf(__("What's new in Duplicate Post version %s:", 'duplicate-post'), DUPLICATE_POST_CURRENT_VERSION).'</strong><br/>';
	$message .= esc_html__('Simple compatibility with Gutenberg user interface: enable "Admin bar" under the Settings', 'duplicate-post').' — '.esc_html__('"Slug" option unset by default on new installations', 'duplicate-post').'<br/>';
	$message .= '<em><a href="https://duplicate-post.lopo.it/">'.esc_html__('Check out the documentation', 'duplicate-post').'</a> — '.sprintf(__('Please <a href="%s">review the settings</a> to make sure it works as you expect.', 'duplicate-post'), admin_url('options-general.php?page=duplicatepost')).'</em><br/>';
	$message .= esc_html__('Serving the WordPress community since November 2007.', 'duplicate-post').' <strong>'.sprintf(wp_kses(__('Help me develop the plugin and provide support by <a href="%s">donating even a small sum</a>.', 'duplicate-post'), array( 'a' => array( 'href' => array() ) ) ), "https://duplicate-post.lopo.it/donate").'</strong>';
	global $wp_version;
	if( version_compare($wp_version, '4.2') < 0 ){
		$message .= ' | <a id="duplicate-post-dismiss-notice" href="javascript:duplicate_post_dismiss_notice();">'.__('Dismiss this notice.').'</a>';
	}
	echo '<div id="duplicate-post-notice" class="'.$class.'"><p>'.$message.'</p></div>';
	echo "<script>
			function duplicate_post_dismiss_notice(){
				var data = {
				'action': 'duplicate_post_dismiss_notice',
				};

				jQuery.post(ajaxurl, data, function(response) {
					jQuery('#duplicate-post-notice').hide();
				});
			}
	
			jQuery(document).ready(function(){
				jQuery('body').on('click', '.notice-dismiss', function(){
					duplicate_post_dismiss_notice();
				});
			});
			</script>";
}

function duplicate_post_dismiss_notice() {
	$result = update_site_option('duplicate_post_show_notice', 0);
	return $result;
	wp_die();
}

/**
 * Add the link to action list for post_row_actions
 */
function duplicate_post_make_duplicate_link_row($actions, $post) {
	if (duplicate_post_is_current_user_allowed_to_copy() && duplicate_post_is_post_type_enabled($post->post_type)) {
		$actions['clone'] = '<a href="'.duplicate_post_get_clone_post_link( $post->ID , 'display', false).'" title="'
				. esc_attr__("Clone this item", 'duplicate-post')
				. '">' .  esc_html__('Clone', 'duplicate-post') . '</a>';
		$actions['edit_as_new_draft'] = '<a href="'. duplicate_post_get_clone_post_link( $post->ID ) .'" title="'
				. esc_attr__('Copy to a new draft', 'duplicate-post')
				. '">' .  esc_html__('New Draft', 'duplicate-post') . '</a>';
	}
	return $actions;
}

/**
 * Add a button in the post/page edit screen to create a clone
 */
function duplicate_post_add_duplicate_post_button() {
	if ( isset( $_GET['post'] )){
		$id = $_GET['post'];
		$post = get_post($id);
		if(duplicate_post_is_current_user_allowed_to_copy() && duplicate_post_is_post_type_enabled($post->post_type)) {
	 	?>
<div id="duplicate-action">
	<a class="submitduplicate duplication"
		href="<?php echo duplicate_post_get_clone_post_link( $_GET['post'] ) ?>"><?php esc_html_e('Copy to a new draft', 'duplicate-post'); ?>
	</a>
</div>
<?php
		}
	}
}

/*
 * This function calls the creation of a new copy of the selected post (as a draft)
* then redirects to the edit post screen
*/
function duplicate_post_save_as_new_post_draft(){
	duplicate_post_save_as_new_post('draft');
}

function duplicate_post_add_removable_query_arg( $removable_query_args ){
	$removable_query_args[] = 'cloned';
	return $removable_query_args;
}

/*
 * This function calls the creation of a new copy of the selected post (by default preserving the original publish status)
* then redirects to the post list
*/
function duplicate_post_save_as_new_post($status = ''){
	if(!duplicate_post_is_current_user_allowed_to_copy()){
		wp_die(esc_html__('Current user is not allowed to copy posts.', 'duplicate-post'));
	}
	
	if (! ( isset( $_GET['post']) || isset( $_POST['post'])  || ( isset($_REQUEST['action']) && 'duplicate_post_save_as_new_post' == $_REQUEST['action'] ) ) ) {
		wp_die(esc_html__('No post to duplicate has been supplied!', 'duplicate-post'));
	}

	// Get the original post
	$id = (isset($_GET['post']) ? $_GET['post'] : $_POST['post']);
	
	check_admin_referer('duplicate-post_' . $id);
	
	$post = get_post($id);	

	// Copy the post and insert it
	if (isset($post) && $post!=null) {
		$new_id = duplicate_post_create_duplicate($post, $status);
		
		if ($status == ''){
			$sendback = wp_get_referer();
			if ( ! $sendback ||
					strpos( $sendback, 'post.php' ) !== false ||
					strpos( $sendback, 'post-new.php' ) !== false ) {
						if ( 'attachment' == $post_type ) {
							$sendback = admin_url( 'upload.php' );
						} else {
							$sendback = admin_url( 'edit.php' );
							if ( ! empty( $post_type ) ) {
								$sendback = add_query_arg( 'post_type', $post_type, $sendback );
							}
						}
					} else {
						$sendback = remove_query_arg( array('trashed', 'untrashed', 'deleted', 'cloned', 'ids'), $sendback );
					}
			// Redirect to the post list screen
			wp_redirect( add_query_arg( array( 'cloned' => 1, 'ids' => $post->ID), $sendback ) );
		} else {
			// Redirect to the edit screen for the new draft post
			wp_redirect( add_query_arg( array( 'cloned' => 1, 'ids' => $post->ID), admin_url( 'post.php?action=edit&post=' . $new_id ) ) );
		}
		exit;

	} else {
		wp_die(esc_html__('Copy creation failed, could not find original:', 'duplicate-post') . ' ' . htmlspecialchars($id));
	}
}

/**
 * Copy the taxonomies of a post to another post
 */
function duplicate_post_copy_post_taxonomies($new_id, $post) {
	global $wpdb;
	if (isset($wpdb->terms)) {
		// Clear default category (added by wp_insert_post)
		wp_set_object_terms( $new_id, NULL, 'category' );

		$post_taxonomies = get_object_taxonomies($post->post_type);
		// several plugins just add support to post-formats but don't register post_format taxonomy
		if(post_type_supports($post->post_type, 'post-formats') && !in_array('post_format', $post_taxonomies)){
			$post_taxonomies[] = 'post_format';
		}
		
		$taxonomies_blacklist = get_option('duplicate_post_taxonomies_blacklist');
		if ($taxonomies_blacklist == "") $taxonomies_blacklist = array();
		if(get_option('duplicate_post_copyformat') == 0){
			$taxonomies_blacklist[] = 'post_format';
		}
		$taxonomies = array_diff($post_taxonomies, $taxonomies_blacklist);
		foreach ($taxonomies as $taxonomy) {
			$post_terms = wp_get_object_terms($post->ID, $taxonomy, array( 'orderby' => 'term_order' ));
			$terms = array();
			for ($i=0; $i<count($post_terms); $i++) {
				$terms[] = $post_terms[$i]->slug;
			}
			wp_set_object_terms($new_id, $terms, $taxonomy);
		}
	}
}

/**
 * Copy the meta information of a post to another post
*/
function duplicate_post_copy_post_meta_info($new_id, $post) {
	$post_meta_keys = get_post_custom_keys($post->ID);
	if (empty($post_meta_keys)) return;
	$meta_blacklist = get_option('duplicate_post_blacklist');
	if ($meta_blacklist == ""){
		$meta_blacklist = array();
	} else {
		$meta_blacklist = explode(',', $meta_blacklist);
		$meta_blacklist = array_filter($meta_blacklist);
		$meta_blacklist = array_map('trim', $meta_blacklist);
	}	
	$meta_blacklist[] = '_edit_lock'; // edit lock
	$meta_blacklist[] = '_edit_last'; // edit lock
	if(get_option('duplicate_post_copytemplate') == 0){
		$meta_blacklist[] = '_wp_page_template';
	}
	if(get_option('duplicate_post_copythumbnail') == 0){
		$meta_blacklist[] = '_thumbnail_id';
	}
	
	$meta_blacklist = apply_filters( 'duplicate_post_blacklist_filter' , $meta_blacklist );
	
	$meta_blacklist_string = '('.implode(')|(',$meta_blacklist).')';
	if(strpos($meta_blacklist_string, '*') !== false){
		$meta_blacklist_string = str_replace(array('*'), array('[a-zA-Z0-9_]*'), $meta_blacklist_string);
	
		$meta_keys = array();
		foreach($post_meta_keys as $meta_key){
			if(!preg_match('#^'.$meta_blacklist_string.'$#', $meta_key))
				$meta_keys[] = $meta_key;
		}
	} else {
		$meta_keys = array_diff($post_meta_keys, $meta_blacklist);
	}

	$meta_keys = apply_filters( 'duplicate_post_meta_keys_filter', $meta_keys );

	foreach ($meta_keys as $meta_key) {
		$meta_values = get_post_custom_values($meta_key, $post->ID);
		foreach ($meta_values as $meta_value) {
			$meta_value = maybe_unserialize($meta_value);
			add_post_meta($new_id, $meta_key, duplicate_post_wp_slash($meta_value));
		}
	}
}

/*
 * Workaround for inconsistent wp_slash.
 * Works only with WP 4.4+ (map_deep)
 */
function duplicate_post_addslashes_deep( $value ) {
	if (function_exists('map_deep')){
		return map_deep( $value, 'duplicate_post_addslashes_to_strings_only' );
	} else {
		return wp_slash( $value );
	}
}

function duplicate_post_addslashes_to_strings_only( $value ) {
	return is_string( $value ) ? addslashes( $value ) : $value;
}

function duplicate_post_wp_slash( $value ) { 
	return duplicate_post_addslashes_deep( $value ); 
} 
		
		
		
/**
 * Copy the attachments
*/
function duplicate_post_copy_attachments($new_id, $post){
	// get thumbnail ID
	$old_thumbnail_id = get_post_thumbnail_id($post->ID);
	// get children
	$children = get_posts(array( 'post_type' => 'any', 'numberposts' => -1, 'post_status' => 'any', 'post_parent' => $post->ID ));
	// clone old attachments
	foreach($children as $child){
		if ($child->post_type != 'attachment') continue;
		$url = wp_get_attachment_url($child->ID);
		// Let's copy the actual file
		$tmp = download_url( $url );
		if( is_wp_error( $tmp ) ) {
			@unlink($tmp);
			continue;
		}

		$desc = wp_slash($child->post_content);

		$file_array = array();
		$file_array['name'] = basename($url);
		$file_array['tmp_name'] = $tmp;
		// "Upload" to the media collection
		$new_attachment_id = media_handle_sideload( $file_array, $new_id, $desc );

		if ( is_wp_error($new_attachment_id) ) {
			@unlink($file_array['tmp_name']);
			continue;
		}
		$new_post_author = wp_get_current_user();
		$cloned_child = array(
				'ID'           => $new_attachment_id,
				'post_title'   => $child->post_title,
				'post_exceprt' => $child->post_title,
				'post_author'  => $new_post_author->ID
		);
		wp_update_post( wp_slash($cloned_child) );

		$alt_title = get_post_meta($child->ID, '_wp_attachment_image_alt', true);
		if($alt_title) update_post_meta($new_attachment_id, '_wp_attachment_image_alt', wp_slash($alt_title));

		// if we have cloned the post thumbnail, set the copy as the thumbnail for the new post
		if(get_option('duplicate_post_copythumbnail') == 1 && $old_thumbnail_id == $child->ID){
				set_post_thumbnail($new_id, $new_attachment_id);
		}
		
	}
}

/**
 * Copy children posts
 */
function duplicate_post_copy_children($new_id, $post, $status = ''){
	// get children
	$children = get_posts(array( 'post_type' => 'any', 'numberposts' => -1, 'post_status' => 'any', 'post_parent' => $post->ID ));
	// clone old attachments
	foreach($children as $child){
		if ($child->post_type == 'attachment') continue;
		duplicate_post_create_duplicate($child, $status, $new_id);
	}
}

/**
 * Copy comments
 */
function duplicate_post_copy_comments($new_id, $post){
	$comments = get_comments(array(
		'post_id' => $post->ID,
		'order' => 'ASC',
		'orderby' => 'comment_date_gmt'
	));

	$old_id_to_new = array();
	foreach ($comments as $comment){
		//do not copy pingbacks or trackbacks
		if(!empty($comment->comment_type)) continue;
		$parent = ($comment->comment_parent && $old_id_to_new[$comment->comment_parent])?$old_id_to_new[$comment->comment_parent]:0;
		$commentdata = array(
			'comment_post_ID' => $new_id,
			'comment_author' => $comment->comment_author,
			'comment_author_email' => $comment->comment_author_email,
			'comment_author_url' => $comment->comment_author_url,
			'comment_content' => $comment->comment_content,
			'comment_type' => '', 
			'comment_parent' => $parent,
			'user_id' => $comment->user_id,
			'comment_author_IP' => $comment->comment_author_IP,
			'comment_agent' => $comment->comment_agent,
			'comment_karma' => $comment->comment_karma,
			'comment_approved' => $comment->comment_approved,
		);
		if(get_option('duplicate_post_copydate') == 1){
			$commentdata['comment_date'] = $comment->comment_date ;
			$commentdata['comment_date_gmt'] = get_gmt_from_date($comment->comment_date);
		}
		$new_comment_id = wp_insert_comment($commentdata);
		$old_id_to_new[$comment->comment_ID] = $new_comment_id;
	}
}

/**
 * Create a duplicate from a post
 */
function duplicate_post_create_duplicate($post, $status = '', $parent_id = '') {
	
	do_action('duplicate_post_pre_copy');

	if (!duplicate_post_is_post_type_enabled($post->post_type) && $post->post_type != 'attachment')
		wp_die(esc_html__('Copy features for this post type are not enabled in options page', 'duplicate-post'));
		
	$new_post_status = (empty($status))? $post->post_status: $status;
	
	if ($post->post_type != 'attachment'){
		$prefix = sanitize_text_field(get_option('duplicate_post_title_prefix'));
		$suffix = sanitize_text_field(get_option('duplicate_post_title_suffix'));
		$title = ' ';
		if (get_option('duplicate_post_copytitle') == 1) {
			$title = $post->post_title;
			if (!empty($prefix)) $prefix.= " ";
			if (!empty($suffix)) $suffix = " ".$suffix;
			} else {
			$title = ' ';
		}
		$title = trim($prefix.$title.$suffix);

		if ($title == ''){
			// empty title
			$title = __('Untitled');
		}
		if (get_option('duplicate_post_copystatus') == 0){
			$new_post_status = 'draft';
		} else {
			if ( 'publish' == $new_post_status || 'future' == $new_post_status ){
				// check if the user has the right capability
				if(is_post_type_hierarchical( $post->post_type )){
					if(!current_user_can('publish_pages')){
						$new_post_status = 'pending';
					}
				} else {
					if(!current_user_can('publish_posts')){
						$new_post_status = 'pending';
					}
				}
			}
		}
	}	
	
	$new_post_author = wp_get_current_user();
	$new_post_author_id = $new_post_author->ID;
	if ( get_option('duplicate_post_copyauthor') == '1' ){
		// check if the user has the right capability
		if(is_post_type_hierarchical( $post->post_type )){
			if(current_user_can('edit_others_pages')){
				$new_post_author_id = $post->post_author;
			}
		} else {
			if(current_user_can('edit_others_posts')){
				$new_post_author_id = $post->post_author;
			}
		}
	}
	
	$menu_order = (get_option('duplicate_post_copymenuorder') == '1') ? $post->menu_order : 0;
	$increase_menu_order_by = get_option('duplicate_post_increase_menu_order_by');
	if(!empty($increase_menu_order_by) && is_numeric($increase_menu_order_by)){
		$menu_order += intval($increase_menu_order_by);
	}
	
	$post_name = $post->post_name;
	if(get_option('duplicate_post_copyslug') != 1){
		$post_name = '';
	}

	$new_post = array(
	'menu_order' => $menu_order,
	'comment_status' => $post->comment_status,
	'ping_status' => $post->ping_status,
	'post_author' => $new_post_author_id,
	'post_content' => (get_option('duplicate_post_copycontent') == '1') ? $post->post_content : "" ,
	'post_content_filtered' => (get_option('duplicate_post_copycontent') == '1') ? $post->post_content_filtered : "" ,			
	'post_excerpt' => (get_option('duplicate_post_copyexcerpt') == '1') ? $post->post_excerpt : "",
	'post_mime_type' => $post->post_mime_type,
	'post_parent' => $new_post_parent = empty($parent_id)? $post->post_parent : $parent_id,
	'post_password' => (get_option('duplicate_post_copypassword') == '1') ? $post->post_password: "",
	'post_status' => $new_post_status,
	'post_title' => $title,
	'post_type' => $post->post_type,
	'post_name' => $post_name
	);

	if(get_option('duplicate_post_copydate') == 1){
		$new_post['post_date'] = $new_post_date =  $post->post_date ;
		$new_post['post_date_gmt'] = get_gmt_from_date($new_post_date);
	}

	$new_post_id = wp_insert_post(wp_slash($new_post));

	// If you have written a plugin which uses non-WP database tables to save
	// information about a post you can hook this action to dupe that data.
	
	if($new_post_id !== 0 && !is_wp_error($new_post_id)){
		
		if ($post->post_type == 'page' || is_post_type_hierarchical( $post->post_type ))
			do_action( 'dp_duplicate_page', $new_post_id, $post, $status );
		else
			do_action( 'dp_duplicate_post', $new_post_id, $post, $status );
	
		delete_post_meta($new_post_id, '_dp_original');
		add_post_meta($new_post_id, '_dp_original', $post->ID);
	
		do_action('duplicate_post_post_copy');
		
	}
	
	return $new_post_id;
}

//Add some links on the plugin page
function duplicate_post_add_plugin_links($links, $file) {
	if ( $file == plugin_basename(dirname(__FILE__).'/duplicate-post.php') ) {
		$links[] = '<a href="https://duplicate-post.lopo.it/">' . esc_html__('Documentation', 'duplicate-post') . '</a>';
		$links[] = '<a href="https://duplicate-post.lopo.it/donate">' . esc_html__('Donate', 'duplicate-post') . '</a>';
	}
	return $links;
}

/*** NOTICES ***/
function duplicate_post_action_admin_notice() {
  if ( ! empty( $_REQUEST['cloned'] ) ) {
    $copied_posts = intval( $_REQUEST['cloned'] );
    printf( '<div id="message" class="updated fade"><p>' .
      _n( '%s item copied.',
        '%s items copied.',
        $copied_posts,
        'duplicate-post'
      ) . '</p></div>', $copied_posts );
    remove_query_arg( 'cloned' );
  }
}


/*** BULK ACTIONS ***/
add_action('admin_init', 'duplicate_post_add_bulk_filters_for_enabled_post_types');

function duplicate_post_add_bulk_filters_for_enabled_post_types(){
	if(get_option('duplicate_post_show_bulkactions') != 1) return;
	$duplicate_post_types_enabled = get_option('duplicate_post_types_enabled', array ('post', 'page'));
	if(!is_array($duplicate_post_types_enabled)) $duplicate_post_types_enabled = array($duplicate_post_types_enabled);
	foreach($duplicate_post_types_enabled as $duplicate_post_type_enabled){
		add_filter( "bulk_actions-edit-{$duplicate_post_type_enabled}", 'duplicate_post_register_bulk_action' );
		add_filter( "handle_bulk_actions-edit-{$duplicate_post_type_enabled}", 'duplicate_post_action_handler', 10, 3 );
	}
}

function duplicate_post_register_bulk_action($bulk_actions) {
	$bulk_actions['duplicate_post_clone'] = esc_html__( 'Clone', 'duplicate-post');
	return $bulk_actions;
}

function duplicate_post_action_handler( $redirect_to, $doaction, $post_ids ) {
	if ( $doaction !== 'duplicate_post_clone' ) {
		return $redirect_to;
	}
	$counter = 0;
	foreach ( $post_ids as $post_id ) {
		$post = get_post($post_id);
		if(!empty($post)){
			if( get_option('duplicate_post_copychildren') != 1
					|| !is_post_type_hierarchical( $post->post_type )
					|| (is_post_type_hierarchical( $post->post_type ) && !duplicate_post_has_ancestors_marked($post, $post_ids))){
						if(duplicate_post_create_duplicate($post)){
							$counter++;
						}
			}
		}
	}
	$redirect_to = add_query_arg( 'cloned', $counter, $redirect_to );
	return $redirect_to;
}

function duplicate_post_has_ancestors_marked($post, $post_ids){
	$ancestors_in_array = 0;
	$parent = $post->ID;
	while ($parent = wp_get_post_parent_id($parent)){
		if(in_array($parent, $post_ids)){
			$ancestors_in_array++;
		}
	}
	return ($ancestors_in_array !== 0);
}