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Editing: Shortcodes.php

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<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
} // Exit if accessed directly

if ( ! class_exists( 'DLM_Shortcodes' ) ) {
	/**
	 * DLM_Shortcodes class.
	 */
	class DLM_Shortcodes {

/**
		 * Setup the shortcodes
		 */
		public function setup() {
			add_shortcode(
				'total_downloads',
				array( $this, 'total_downloads' )
			);
			add_shortcode( 'total_files', array( $this, 'total_files' ) );
			add_shortcode( 'download', array( $this, 'download' ) );
			add_shortcode( 'download_data', array( $this, 'download_data' ) );

// make this filterable because [downloads] has some known conflicts
			if ( apply_filters( 'dlm_add_shortcode_downloads', true ) ) {
				add_shortcode( 'downloads', array( $this, 'downloads' ) );
			}

add_shortcode( 'dlm_no_access', array( $this, 'no_access_page' ) );
		}

/**
		 * Total downloads function
		 * Will be based on the download_log table and not meta.
		 *
		 * @access public
		 * @return int
		 */
		public function total_downloads() {
			global $wpdb;

$total = 0;

// Check if table exists and get totals from the new table, it is much faster
			if ( DLM_Utils::table_checker( $wpdb->dlm_downloads ) ) {
				$total
					   = $wpdb->get_results(
					"SELECT downloads.download_count FROM {$wpdb->dlm_downloads} downloads INNER JOIN {$wpdb->posts} posts ON downloads.download_id = posts.ID WHERE 1=1 AND posts.post_status = 'publish';",
					ARRAY_A
				);
				$total = array_sum( array_column( $total, 'download_count' ) );
			} else {
				if ( ! DLM_Logging::is_logging_enabled() ) {
					return esc_html__(
						'Logging is not enabled.',
						'download-monitor'
					);
				}

return esc_html__(
					'Log table not present.',
					'download-monitor'
				);
			}

/**
			 * Filter the total downloads
			 *
			 * @hooked DLM_Backwards_Compatibility::total_downloads_shortcode - 10
			 *
			 * @param  int  $total  Total downloads
			 */
			return apply_filters( 'dlm_shortcode_total_downloads', $total );
		}

/**
		 * total_files function.
		 *
		 * @access public
		 * @return void
		 */
		public function total_files() {
			$count_posts = wp_count_posts( 'dlm_download' );

return $count_posts->publish;
		}

/**
		 * download function.
		 *
		 * @access public
		 *
		 * @param  array   $atts
		 * @param  string  $content
		 *
		 * @return string
		 */
		public function download( $atts, $content = '' ) {
			/**
			 * Action to allow the adition of extra scripts and code related to the shortcode
			 *
			 */
			do_action( 'dlm_download_shortcode_scripts' );

// extract shortcode atts
			extract(
				shortcode_atts(
					array(
						'id'         => '',
						'autop'      => false,
						'template'   => dlm_get_default_download_template(),
						'version_id' => null,
						'version'    => '',
					),
					$atts
				)
			);

// Make id filterable
			$id = apply_filters( 'dlm_shortcode_download_id', $id, $atts );

// Check id
			if ( empty( $id ) ) {
				return '';
			}

// Allow third party extensions to hijack shortcode
			$hijacked_content = apply_filters(
				'dlm_shortcode_download_content',
				'',
				$id,
				$atts,
				$content
			);

// If there's hijacked content, return it and be done with it
			if ( '' !== $hijacked_content ) {
				return $hijacked_content;
			}

// shortcode output
			$output = '';

// create download object
			try {
				/** @var DLM_Download $download */
				$download = download_monitor()->service( 'download_repository' )
				                              ->retrieve_single( $id );

// check if version is set
				if ( ! empty( $version ) ) {
					$version_id
						= $download->get_version_id_version_name( $version );
				}

// check if version ID is set
				if ( isset( $version_id ) && 0 != $version_id ) {
					try {
						$version = download_monitor()
							->service( 'version_repository' )
							->retrieve_single( $version_id );
						$download->set_version( $version );
					} catch ( Exception $e ) {
					}
				}

// if we have content, wrap in a link only
				if ( $content ) {
					$output = '<a href="' . $download->get_the_download_link()
					          . '">' . $content . '</a>';
				} else {
					// template handler
					$template_handler = new DLM_Template_Handler();

// buffer
					ob_start();
					// Load template
					if ( $download ) {
						$template_handler->get_template_part( 'content-download', $template, '', array( 'dlm_download' => $download ) );
					} else {
						echo esc_html__( 'No download defined', 'download-monitor' );
					}

// get output
					$output .= ob_get_clean();
					// check if we need to wpautop()
					if ( 'true' === $autop || true === $autop ) {
						$output = wpautop( $output );
					}
				}
			} catch ( Exception $e ) {
				$output = '[' . __( 'Download not found', 'download-monitor' )
				          . ']';
			}

return $output;
		}

/**
		 * download_data function.
		 *
		 * @access public
		 *
		 * @param  array  $atts
		 *
		 * @return string
		 */
		public function download_data( $atts ) {
			/**
			 * Action to allow the adition of extra scripts and code related to the shortcode
			 *
			 */
			do_action( 'dlm_download_data_shortcode_scripts' );

extract(
				shortcode_atts(
					array(
						'id'         => '',
						'data'       => '',
						'version_id' => null,
						'version'    => '',
					),
					$atts
				)
			);

$id = apply_filters( 'dlm_shortcode_download_id', $id, $atts );

if ( empty( $id ) || empty( $data ) ) {
				return '';
			}

try {
				/** @var DLM_Download $download */
				$download = download_monitor()->service( 'download_repository' )
				                              ->retrieve_single( $id );

if ( ! empty( $version ) ) {
					$version_id
						= $download->get_version_id_version_name( $version );
				}

if ( ! empty( $version_id ) ) {
					try {
						$version = download_monitor()
							->service( 'version_repository' )
							->retrieve_single( $version_id );
						$download->set_version( $version );
					} catch ( Exception $e ) {
					}
				}

switch ( $data ) {
					// File / Version Info
					case 'filename':
						return $download->get_version()->get_filename();
					case 'filetype':
						return $download->get_version()->get_filetype();
					case 'filesize':
						return $download->get_version()
						                ->get_filesize_formatted();
					case 'md5':
						return $download->get_version()->get_md5();
					case 'sha1':
						return $download->get_version()->get_sha1();
					case 'sha256':
						return $download->get_version()->get_sha256();
					case 'crc32':
					case 'crc32b':
						return $download->get_version()->get_crc32b();
					case 'version':
						return $download->get_version()->get_version_number();

// Download Info
					case 'title':
						return $download->get_title();
					case 'short_description':
						return wpautop( wptexturize( do_shortcode( $download->get_excerpt() ) ) );
					case 'download_link':
						return $download->get_the_download_link();
					case 'download_count':
						return $download->get_download_count();
					case 'post_content':
						return wpautop( wptexturize( do_shortcode( $download->get_description() ) ) );
					case 'post_date':
					case 'file_date':
						return date_i18n(
							get_option( 'date_format' ),
							$download->get_version()->get_date()
							         ->format( 'U' )
						);
					case 'author':
						return $download->get_the_author();

// Images
					case 'image':
						return $download->get_image( 'full' );
					case 'thumbnail':
						return $download->get_image( 'thumbnail' );

// Taxonomies
					case 'tags':
						$returnstr = '';
						$terms     = get_the_terms( $id, 'dlm_download_tag' );
						if ( ! is_wp_error( $terms ) && ! empty( $terms ) ) {
							$terms_names = array();
							foreach ( $terms as $term ) {
								$terms_names[] = $term->name;
							}
							$returnstr = implode( ', ', $terms_names );
						}

return $returnstr;
					case 'categories':
						$returnstr = '';
						$terms     = get_the_terms(
							$id,
							'dlm_download_category'
						);
						if ( ! is_wp_error( $terms ) && ! empty( $terms ) ) {
							$terms_names = array();
							foreach ( $terms as $term ) {
								$terms_names[] = $term->name;
							}
							$returnstr = implode( ', ', $terms_names );
						}

return $returnstr;
					default:
						$meta = get_post_meta( $id, $data, false );
						if ( empty( $meta ) ) {
							return '';
						}
						return count( $meta ) === 1 ? $meta[0] : implode( ', ', $meta );
				}
			} catch ( Exception $e ) {
				return '[' . __( 'Download not found', 'download-monitor' )
				       . ']';
			}
		}

/**
		 * downloads function.
		 *
		 * @access public
		 *
		 * @param  mixed  $atts
		 *
		 * @return void
		 */
		public function downloads( $atts ) {
			global $dlm_max_num_pages;

/**
			 * Action to allow the adition of extra scripts and code related to the shortcode
			 *
			 */
			do_action( 'dlm_downloads_shortcode_scripts' );

extract(
				shortcode_atts(
					array(
						// Query args
						'per_page'                  => '-1',
						// -1 = no limit
						'orderby'                   => 'date',
						// title, rand, ID, none, date, modifed, post__in, download_count
						'order'                     => 'desc',
						// ASC or DESC
						'include'                   => '',
						// Comma separate IDS
						'exclude'                   => '',
						// Comma separate IDS
						'offset'                    => '',
						'category'                  => '',
						// Comma separate slugs
						'category_include_children' => true,
						// Set to false to not include child categories
						'tag'                       => '',
						// Comma separate slugs
						'exclude_tag'               => '',
						// Comma separate slugs
						'featured'                  => false,
						// Set to true to only pull featured downloads
						'members_only'              => false,
						// Set to true to only pull member downloads

// Output args
						'template'                  => dlm_get_default_download_template(),
						'loop_start'                => '<ul class="dlm-downloads wp-block-list">',
						'loop_end'                  => '</ul>',
						'before'                    => '<li>',
						'after'                     => '</li>',
						'paginate'                  => false,
					),
					$atts
				)
			);

$post__in       = ! empty( $include ) ? explode( ',', $include )
				: '';
			$post__not_in   = ! empty( $exclude ) ? explode( ',', $exclude )
				: '';
			$tag_not_in     = ! empty( $exclude_tag ) ? explode(
				',',
				$exclude_tag
			) : '';
			$order          = strtoupper( $order );
			$order          = in_array( $order, array( 'ASC', 'DESC' ), true ) ? $order : 'DESC';
			$meta_key       = '';
			$order_by_count = '';

switch ( $orderby ) {
				case 'title':
				case 'rand':
				case 'ID':
				case 'date':
				case 'modified':
				case 'post__in':
				case 'menu_order':
					$orderby = $orderby;
					break;
				case 'id':
					$orderby = 'ID';
					break;
				case 'hits':
				case 'count':
				case 'download_count':
					$order_by_count = '1';
					break;
				default:
					$orderby = 'title';
					break;
			}

$args = array(
				'post_type'      => 'dlm_download',
				'post_status'    => 'publish',
				'orderby'        => $orderby,
				'order'          => $order,
				'meta_key'       => $meta_key,
				'post__in'       => $post__in,
				'post__not_in'   => $post__not_in,
				'meta_query'     => array(),
				'order_by_count' => $order_by_count,
			);

if ( $category || $tag || ! empty( $tag_not_in ) ) {
				$args['tax_query'] = array( 'relation' => 'AND' );

$tags = array_filter( explode( ',', $tag ) );

// check if we include category children
				$include_children = ( $category_include_children === 'true'
				                      || $category_include_children === true );

if ( ! empty( $category ) ) {
					if ( preg_match( '/\+/', $category ) ) {
						// categories with AND

// string to array
						$categories = array_filter( explode( '+', $category ) );

// check if explode had results
						if ( ! empty( $categories ) ) {
							foreach ( $categories as $category ) {
								$args['tax_query'][] = array(
									'taxonomy'         => 'dlm_download_category',
									'field'            => 'slug',
									'terms'            => $category,
									'include_children' => $include_children,
								);
							}
						}
					} else {
						// categories with OR

// string to array
						$categories = array_filter( explode( ',', $category ) );

// check if explode had results
						if ( ! empty( $categories ) ) {
							$args['tax_query'][] = array(
								'taxonomy'         => 'dlm_download_category',
								'field'            => 'slug',
								'terms'            => $categories,
								'include_children' => $include_children,
							);
						}
					}
				}

if ( ! empty( $tags ) ) {
					$args['tax_query'][] = array(
						'taxonomy' => 'dlm_download_tag',
						'field'    => 'slug',
						'terms'    => $tags,
					);
				}

if ( ! empty( $tag_not_in ) ) {
					$args['tax_query'][] = array(
						'taxonomy' => 'dlm_download_tag',
						'field'    => 'slug',
						'terms'    => $tag_not_in,
						'operator' => 'NOT IN',
					);
				}
			}

if ( $featured === 'true' || $featured === true ) {
				$args['meta_query'][] = array(
					'key'   => '_featured',
					'value' => 'yes',
				);
			} elseif ( $featured === 'exclude_featured' ) {
				$args['meta_query'][] = array(
					'key'   => '_featured',
					'value' => 'no',
				);
			}

if ( $members_only === 'true' || $members_only === true ) {
				$args['meta_query'][] = array(
					'key'   => '_members_only',
					'value' => 'yes',
				);
			}

ob_start();

// Allow filtering of arguments
			$args = apply_filters(
				'dlm_shortcode_downloads_args',
				$args,
				$atts
			);

$offset = $paginate ? ( max( 1, get_query_var( 'paged' ) ) - 1 )
			                      * $per_page : $offset;

// set offset to 0 if empty
			if ( '' === $offset ) {
				$offset = 0;
			}

// fetch downloads
			$downloads = download_monitor()->service( 'download_repository' )
			                               ->retrieve(
				                               $args,
				                               $per_page,
				                               $offset
			                               );

// make all downloads filterable
			$downloads = apply_filters(
				'dlm_shortcode_downloads_downloads',
				$downloads
			);

// only calculate pages if we're paginating. Saves us a query when we're not
			$pages = 1;
			if ( $paginate ) {
				$pages = ceil(
					download_monitor()
						->service( 'download_repository' )
						->num_rows( $args ) / $per_page
				);
			}

// Template handler
			$template_handler = new DLM_Template_Handler();

if ( count( $downloads ) > 0 ) {
				// loop start output
				echo wp_kses_post( html_entity_decode( $loop_start ) );

foreach ( $downloads as $download ) {
					// make download filterable
					$download
						= apply_filters(
						'dlm_shortcode_downloads_loop_download',
						$download
					);

// check if filtered download is still a DLM_Download instance
					if ( ! $download instanceof DLM_Download ) {
						continue;
					}

// display the 'before'
					echo wp_kses_post( html_entity_decode( $before ) );

// Allow third party extensions to hijack shortcode
					$hijacked_content
						= apply_filters(
						'dlm_shortcode_downloads_download_content',
						'',
						$download,
						$atts
					);

// If there's hijacked content, return it and be done with it.
					if ( '' !== $hijacked_content ) {
						echo wp_kses_post( $hijacked_content );
					} else {
						// load the template
						if ( $download->has_version() ) {
							$template_handler->get_template_part(
								'content-download',
								$template,
								'',
								array( 'dlm_download' => $download )
							);
						} else {
							$template_handler->get_template_part(
								'content-download',
								'no-version',
								'',
								array( 'dlm_download' => $download )
							);
						}
					}

// display the 'after'
					echo wp_kses_post( html_entity_decode( $after ) );
				} // end of the loop.

// end of loop html
				echo wp_kses_post( html_entity_decode( $loop_end ) );

if ( $paginate ) {
					$template_handler->get_template_part(
						'pagination',
						'',
						'',
						array(
							'pages' => $pages,
						)
					);
				} ?>

<?php
			}

wp_reset_postdata();

$output = ob_get_clean();
			return preg_replace( '/(\r?\n){2,}/', "\n", $output );
		}

/**
		 * The dlm_no_access shortcode callback
		 *
		 * @param  array  $atts
		 *
		 * @return string
		 */
		public function no_access_page( $atts ) {
			global $wp;

/**
			 * Action to allow the adition of extra scripts and code related to the shortcode
			 *
			 */
			do_action( 'dlm_dlm_no_access_shortcode_scripts' );

// atts
			$atts = shortcode_atts(
				array(
					'show_message' => 'true',
				),
				$atts
			);

// start buffer
			ob_start();

// show_message must be a bool
			$atts['show_message'] = ( 'true' === $atts['show_message'] );

// return empty string if download-id is not set or action is not no_access_dlm_xhr_download for XHR downloads & modal no access.
			if ( ( ! isset( $_REQUEST['action'] )
			       || 'no_access_dlm_xhr_download' !== $_REQUEST['action'] )
			     && ! isset( $wp->query_vars['download-id'] )
			) {
				return '';
			}

$download_id = isset( $_REQUEST['download_id'] )
				? absint( $_REQUEST['download_id'] )
				: absint( $wp->query_vars['download-id'] );

// template handler.
			$template_handler = new DLM_Template_Handler();

try {
				/** @var \DLM_Download $download */
				$download = download_monitor()->service( 'download_repository' )
				                              ->retrieve_single( absint( $download_id ) );

$version_id = '';

if ( ! empty( $_GET['version'] ) ) {
					$version_id
						= $download->get_version_id_version_name( sanitize_text_field( wp_unslash( $_GET['version'] ) ) );
				}

if ( ! empty( $_GET['v'] ) ) {
					$version_id = absint( $_GET['v'] );
				}

if ( null != $download && $version_id ) {
					try {
						$version = download_monitor()
							->service( 'version_repository' )
							->retrieve_single( $version_id );
						$download->set_version( $version );
					} catch ( Exception $e ) {
					}
				}

/**
				 * Filter to show extra notice text permissions when the user has no access to the download
				 *
				 * @hook dlm_do_extra_notice_text
				 *
				 * @default false
				 *
				 * @since 5.0.13
				 */
				if ( ! empty( $_SESSION['dlm_error_texts'] ) && apply_filters( 'dlm_do_extra_notice_text', false ) ) {
					$error_texts = $_SESSION['dlm_error_texts'];
					foreach ( $error_texts as $error_text ) {
						echo '<p class="dlm-no-access-notice">' . esc_html( $error_text ) . '</p>';
					}
				}

// load no access template
				$template_handler->get_template_part(
					'no-access',
					'',
					'',
					array(
						'download'          => $download,
						'no_access_message' => ( ( $atts['show_message'] )
							? wp_kses_post(
								apply_filters( 'dlm_no_access_message', get_option( 'dlm_no_access_error', '' ), $download )
							) : '' ),
					)
				);
			} catch ( Exception $exception ) {
				// no download with given ID
			}

// set new content
			$content = ob_get_clean();
			session_write_close();
			return $content;
		}
	}
}

Editing: Shortcodes.php

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