| Current File : /home/pacjaorg/public_html/2024/wp-content/plugins/download-attachments/includes/functions.php |
<?php
// exit if accessed directly
if ( ! defined( 'ABSPATH' ) )
exit;
/**
* Get download attachments data.
*
* @param int|null $post_id
* @param array $args
* @return array
*/
function da_get_download_attachments( $post_id = 0, $args = [] ) {
$post_id = $post_id !== null ? ( (int) ( empty( $post_id ) ? get_the_ID() : $post_id ) ) : $post_id;
$attachments = $attachments_meta = [];
$defaults = [
'include' => [],
'exclude' => [],
'orderby' => 'downloads',
'order' => 'asc',
'posts_per_page' => -1,
'offset' => 0
];
$args = array_merge( $defaults, $args );
// force args
$args['post_type'] = 'attachment';
$args['suppress_filters'] = false;
$args['meta_key'] = '_da_downloads';
$args['meta_query'] = [
'relation' => 'OR',
[
'key' => '_da_downloads',
'compare' => 'EXISTS'
]
];
// include
if ( is_array( $args['include'] ) && ! empty( $args['include'] ) ) {
$ids = [];
foreach ( $args['include'] as $id ) {
$ids[] = (int) $id;
}
$args['include'] = array_unique( $ids );
} elseif ( is_numeric( $args['include'] ) )
$args['include'] = [ (int) $args['include'] ];
// shortcode
elseif ( is_string( $args['include'] ) && ! empty( $args['include'] ) ) {
$include = json_decode( '[' . $args['include'] . ']', true );
if ( json_last_error() === JSON_ERROR_NONE && ! empty( $include ) && is_array( $include ) ) {
$ids = [];
foreach ( $include as $id ) {
$ids[] = (int) $id;
}
$args['include'] = array_unique( $ids );
} else
$args['include'] = [];
} else {
$args['include'] = $defaults['include'];
// exclude
if ( is_array( $args['exclude'] ) && ! empty( $args['exclude'] ) ) {
$ids = [];
foreach ( $args['exclude'] as $id ) {
$ids[] = (int) $id;
}
$args['exclude'] = array_unique( $ids );
} elseif ( is_numeric( $args['exclude'] ) )
$args['exclude'] = [ (int) $args['exclude'] ];
elseif ( is_string( $args['exclude'] ) && ! empty( $args['exclude'] ) ) {
$exclude = json_decode( '[' . $args['exclude'] . ']', true );
if ( json_last_error() === JSON_ERROR_NONE && ! empty( $exclude ) && is_array( $exclude ) ) {
$ids = [];
foreach ( $exclude as $id ) {
$ids[] = (int) $id;
}
$args['exclude'] = array_unique( $ids );
} else
$args['exclude'] = [];
} else
$args['exclude'] = $defaults['exclude'];
}
// single post attachments
if ( $post_id !== null ) {
$include = $exclude = [];
// force showposts arg
$args['showposts'] = $args['posts_per_page'];
// include / exlude specific attachments
$attachment_meta = get_post_meta( $post_id, '_da_attachments', true );
$menu_order = 0;
if ( is_array( $attachment_meta ) && ! empty( $attachment_meta ) ) {
foreach ( $attachment_meta as $attachment_id => $attachment_data ) {
// any attachments to include?
if ( ! empty( $args['include'] ) ) {
// included attachment?
if ( in_array( $attachment_id, $args['include'], true ) ) {
$include[] = $attachment_data['file_id'];
// assign attachment meta
$attachments_meta[$attachment_data['file_id']]['menu_order'] = $menu_order;
$attachments_meta[$attachment_data['file_id']]['exclude'] = false;
$menu_order++;
}
// any attachments to exclude?
} elseif ( ! empty( $args['exclude'] ) ) {
// included attachment?
if ( ! in_array( $attachment_id, $args['exclude'], true ) ) {
$include[] = $attachment_data['file_id'];
// assign attachment meta
$attachments_meta[$attachment_data['file_id']]['menu_order'] = $menu_order;
$attachments_meta[$attachment_data['file_id']]['exclude'] = false;
$menu_order++;
}
} else {
if ( isset( $attachment_data['file_exclude'] ) && $attachment_data['file_exclude'] === true )
$exclude[] = $attachment_data['file_id'];
else {
$include[] = $attachment_data['file_id'];
// assign attachment meta
$attachments_meta[$attachment_data['file_id']]['menu_order'] = $menu_order;
$attachments_meta[$attachment_data['file_id']]['exclude'] = false;
$menu_order++;
}
}
}
}
// assign included and excluded attachments
$args['include'] = $include;
$args['exclude'] = $exclude;
}
// handle orderby
switch ( $args['orderby'] ) {
case 'downloads':
$args['orderby'] = 'meta_value_num';
break;
default:
break;
}
// all posts
if ( $post_id == null )
$attachments_data = get_posts( apply_filters( 'da_get_download_attachments_args', $args ) );
// single post
elseif ( $post_id !== null && ! empty( $args['include'] ) )
$attachments_data = get_posts( apply_filters( 'da_get_download_attachments_args', $args ) );
// no attachments
else
$attachments_data = [];
// assign attachment data
if ( ! empty( $attachments_data ) ) {
foreach ( $attachments_data as $attachment ) {
// merge with attachment meta
if ( isset( $attachments_meta[$attachment->ID] ) && ! empty( $attachments_meta[$attachment->ID] ) )
$attachments[$attachment->ID] = $attachments_meta[$attachment->ID];
$filename = get_attached_file( $attachment->ID );
$filetype = wp_check_filetype( $filename );
switch ( $filetype['ext'] ) {
case 'jpeg':
$extension = 'jpg';
break;
case 'docx':
$extension = 'doc';
break;
case 'xlsx':
$extension = 'xls';
break;
default:
$extension = $filetype['ext'];
break;
}
$extension = (string) apply_filters( 'da_file_extension_type', $extension );
$attachments[$attachment->ID]['ID'] = (int) $attachment->ID;
$attachments[$attachment->ID]['title'] = trim( $attachment->post_title );
$attachments[$attachment->ID]['caption'] = trim( $attachment->post_excerpt );
$attachments[$attachment->ID]['description'] = trim( $attachment->post_content );
$attachments[$attachment->ID]['size'] = ( file_exists( $filename ) ? filesize( $filename ) : 0 );
$attachments[$attachment->ID]['type'] = $extension;
$attachments[$attachment->ID]['downloads'] = (int) get_post_meta( $attachment->ID, '_da_downloads', true );
$attachments[$attachment->ID]['url'] = da_get_download_attachment_url( $attachment->ID );
$attachments[$attachment->ID]['icon_url'] = ( file_exists( DOWNLOAD_ATTACHMENTS_PATH . 'images/ext/' . $extension . '.gif' ) ? DOWNLOAD_ATTACHMENTS_URL . '/images/ext/' . $extension . '.gif' : DOWNLOAD_ATTACHMENTS_URL . '/images/ext/unknown.gif' );
$attachments[$attachment->ID]['menu_order'] = isset( $attachments[$attachment->ID]['menu_order'] ) ? $attachments[$attachment->ID]['menu_order'] : $attachment->menu_order;
$attachments[$attachment->ID]['date_added'] = $attachment->post_date;
$attachments[$attachment->ID]['timestamp'] = strtotime( $attachment->post_date, 0 );
$attachments[$attachment->ID]['user_added'] = $attachment->post_author;
}
}
// multiarray sorting
if ( ! empty( $attachments ) && in_array( $args['orderby'], [ 'menu_order', 'size' ] ) ) {
$sort_array = [];
foreach ( $attachments as $key => $row ) {
$sort_array[$key] = $row[$args['orderby']];
}
$order = ( strtolower( $args['order'] ) === 'asc' ? SORT_ASC : SORT_DESC );
array_multisort( $attachments, SORT_NUMERIC, $order, $sort_array, ( in_array( $args['orderby'], [ 'menu_order', 'size' ], true ) ? SORT_NUMERIC : SORT_STRING ), $order );
}
return (array) apply_filters( 'da_get_download_attachments', $attachments, $post_id, $args );
}
/**
* Display download attachments for a given post.
*
* @param int|null $post_id
* @param array $args
* @return void|string
*/
function da_display_download_attachments( $post_id = 0, $args = [] ) {
// get post id
$post_id = $post_id !== null ? ( (int) ( empty( $post_id ) ? get_the_ID() : $post_id ) ) : $post_id;
// password protected post?
if ( ! post_password_required( $post_id ) ) {
// get options and defaults
$options = Download_Attachments()->options;
$_defaults = Download_Attachments()->defaults;
$defaults = [
'container' => 'div',
'container_class' => 'download-attachments',
'container_id' => '',
'style' => isset( $options['display_style'] ) ? sanitize_key( $options['display_style'] ) : 'list',
'link_before' => '',
'link_after' => '',
'content_before' => '',
'content_after' => '',
'display_index' => isset( $options['frontend_columns']['index'] ) ? (int) $options['frontend_columns']['index'] : $_defaults['general']['frontend_columns']['index'],
'display_user' => isset( $options['frontend_columns']['author'] ) ? (int) $options['frontend_columns']['author'] : $_defaults['general']['frontend_columns']['author'],
'display_icon' => isset( $options['frontend_columns']['icon'] ) ? (int) $options['frontend_columns']['icon'] : $_defaults['general']['frontend_columns']['icon'],
'display_count' => isset( $options['frontend_columns']['downloads'] ) ? (int) $options['frontend_columns']['downloads'] : $_defaults['general']['frontend_columns']['downloads'],
'display_size' => isset( $options['frontend_columns']['size'] ) ? (int) $options['frontend_columns']['size'] : $_defaults['general']['frontend_columns']['size'],
'display_date' => isset( $options['frontend_columns']['date'] ) ? (int) $options['frontend_columns']['date'] : $_defaults['general']['frontend_columns']['date'],
'display_caption' => isset( $options['frontend_content']['caption'] ) ? (int) $options['frontend_content']['caption'] : $_defaults['general']['frontend_content']['caption'],
'display_description' => isset( $options['frontend_content']['description'] ) ? (int) $options['frontend_content']['description'] : $_defaults['general']['frontend_content']['description'],
'display_empty' => 0,
'display_option_none' => __( 'No attachments to download.', 'download-attachments' ),
'use_desc_for_title' => 0,
'exclude' => '',
'include' => '',
'title' => __( 'Attachments', 'download-attachments' ),
'title_container' => 'h3',
'title_class' => 'attachments-title',
'posts_per_page' => ( isset( $args['number_of_posts'] ) ? (int) $args['number_of_posts'] : -1 ),
'offset' => 0,
'orderby' => 'menu_order',
'order' => 'asc',
'echo' => 1
];
$args = apply_filters( 'da_display_attachments_defaults', wp_parse_args( $args, $defaults ), $post_id );
$args['display_index'] = (int) apply_filters( 'da_display_attachments_index', (int) $args['display_index'] );
$args['display_user'] = (int) apply_filters( 'da_display_attachments_user', (int) $args['display_user'] );
$args['display_icon'] = (int) apply_filters( 'da_display_attachments_icon', (int) $args['display_icon'] );
$args['display_count'] = (int) apply_filters( 'da_display_attachments_count', (int) $args['display_count'] );
$args['display_size'] = (int) apply_filters( 'da_display_attachments_size', (int) $args['display_size'] );
$args['display_date'] = (int) apply_filters( 'da_display_attachments_date', (int) $args['display_date'] );
$args['display_caption'] = (int) apply_filters( 'da_display_attachments_caption', (int) $args['display_caption'] );
$args['display_description'] = (int) apply_filters( 'da_display_attachments_description', (int) $args['display_description'] );
$args['display_empty'] = (int) apply_filters( 'da_display_attachments_empty', (int) $args['display_empty'] );
$args['use_desc_for_title'] = (int) $args['use_desc_for_title'];
$args['echo'] = (int) $args['echo'];
$args['style'] = in_array( $args['style'], array_keys( Download_Attachments()->display_styles ), true ) ? $args['style'] : $defaults['style'];
$args['orderby'] = in_array( $args['orderby'], [ 'menu_order', 'ID', 'date', 'title', 'size', 'downloads' ], true ) ? $args['orderby'] : $defaults['orderby'];
$args['posts_per_page'] = (int) $args['posts_per_page'];
$args['offset'] = (int) $args['offset'];
$args['order'] = in_array( strtolower( $args['order'] ), [ 'asc', 'desc' ], true ) ? $args['order'] : $defaults['order'];
$args['link_before'] = trim( $args['link_before'] );
$args['link_after'] = trim( $args['link_after'] );
$args['display_option_none'] = ( $info = trim( $args['display_option_none'] ) ) !== '' ? $info : $defaults['display_option_none'];
$args['title'] = apply_filters( 'da_display_attachments_title', trim( $args['title'] ) );
// sanitize html tags
$args['container'] = sanitize_key( $args['container'] );
$args['title_container'] = sanitize_key( $args['title_container'] );
$args['content_before'] = wp_kses_post( trim( $args['content_before'] ) );
$args['content_after'] = wp_kses_post( trim( $args['content_after'] ) );
$args['link_before'] = wp_kses_post( trim( $args['link_before'] ) );
$args['link_after'] = wp_kses_post( trim( $args['link_after'] ) );
$args['attachments'] = da_get_download_attachments(
$post_id,
apply_filters(
'da_display_attachments_args',
[
'include' => $args['include'],
'exclude' => $args['exclude'],
'orderby' => $args['orderby'],
'order' => $args['order'],
'posts_per_page' => $args['posts_per_page'],
'offset' => $args['offset']
]
)
);
$args['count'] = count( $args['attachments'] );
if ( $args['style'] === 'dynatable' ) {
wp_register_script( 'da-frontend-datatables', DOWNLOAD_ATTACHMENTS_URL . '/assets/datatables/datatables' . ( ! ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '.min' : '' ) . '.js', [], '1.13.8' );
wp_enqueue_script( 'da-frontend', DOWNLOAD_ATTACHMENTS_URL . '/js/frontend.js', [ 'jquery', 'da-frontend-datatables' ], Download_Attachments()->defaults['version'] );
$columnTypes = [];
// index
if ( $args['display_index'] === 1 )
$columnTypes[] = [ 'orderable' => true, 'type' => 'num', 'searchable' => true ];
// title
$columnTypes[] = [ 'orderable' => true, 'searchable' => true ];
// description
if ( $args['display_caption'] === 1 || ( $args['display_description'] === 1 && $args['use_desc_for_title'] === 0 ) )
$columnTypes[] = [ 'orderable' => false, 'searchable' => true ];
// date added
if ( $args['display_date'] === 1 )
$columnTypes[] = [ 'orderable' => true, 'type' => 'num', 'searchable' => true ];
// added by
if ( $args['display_user'] === 1 )
$columnTypes[] = [ 'orderable' => true, 'searchable' => true ];
// file size
if ( $args['display_size'] === 1 )
$columnTypes[] = [ 'orderable' => true, 'type' => 'num', 'searchable' => true ];
// downloads
if ( $args['display_count'] === 1 )
$columnTypes[] = [ 'orderable' => true, 'type' => 'num', 'searchable' => true ];
// prepare script data
$script_data = apply_filters(
'da_display_attachments_dynatable_args',
[
'columnTypes' => $columnTypes,
'features' => [
'paginate' => true, // paginate
'sort' => true, // ordering
'pushState' => true, // stateSave
'search' => true, // searching
'recordCount' => true, // info
'perPageSelect' => true // lengthChange
],
'inputs' => [
'recordCountPlacement' => 'after', // part of dom
'paginationLinkPlacement' => 'after', // part of dom
'paginationPrev' => esc_html__( 'Previous', 'download-attachments' ), // language.paginate.previous
'paginationNext' => esc_html__( 'Next', 'download-attachments' ), // language.paginate.next
'paginationGap' => [ 1, 2, 2, 1 ], // first and last value has to be 1
'searchPlacement' => 'before', // part of dom
'perPagePlacement' => 'before', // part of dom
'perPageText' => esc_html__( 'Show _MENU_ entries', 'download-attachments' ), // language.lengthMenu
'recordCountText' => esc_html__( 'Showing _START_ to _END_ of _TOTAL_ entries', 'download-attachments' ) . ' ', // language.info
'processingText' => esc_html__( 'Processing', 'download-attachments' ) . '...' // language.loadingRecords
],
'dataset' => [
'perPageDefault' => 5, // pageLength
'perPageOptions' => [ [ 5, 10, 25, 50, -1 ], [ 5, 10, 25, 50, esc_html__( 'All', 'download-attachments' ) ] ] // lengthMenu
]
]
);
wp_add_inline_script( 'da-frontend', 'var daDataTablesArgs = ' . wp_json_encode( $script_data ) . ";\n", 'before' );
}
$allowed_tags = apply_filters( 'da_allowed_html_tags', wp_kses_allowed_html( 'post' ) );
ob_start();
da_get_template( 'attachments-' . $args['style'] . '.php', $args );
$html = wp_kses( ob_get_contents(), $allowed_tags );
ob_end_clean();
} else
$html = '';
if ( $args['echo'] === 1 )
echo apply_filters( 'da_display_attachments', $html );
else
return apply_filters( 'da_display_attachments', $html );
}
/**
* Attach new file to the post.
*
* @param int $attachment_id
* @param int $post_id
* @return bool
*/
function da_attach_file( $attachment_id, $post_id ) {
$attachment_id = (int) $attachment_id;
$post_id = (int) $post_id;
$options = Download_Attachments()->options;
$post_type = get_post_type( $post_id );
// is it attachment?
if ( get_post_type( $attachment_id ) === 'attachment' ) {
// is it supported post type?
if ( array_key_exists( $post_type, $options['post_types'] ) && $options['post_types'][$post_type] ) {
// get attachments
$attachments = get_post_meta( (int) $post_id, '_da_attachments', true );
// attachment does not exist?
if ( is_array( $attachments ) && ! array_key_exists( $attachment_id, $attachments ) ) {
// prepare new attachment
$attachments[$attachment_id] = [
'file_id' => $attachment_id,
'file_date' => current_time( 'mysql' ),
'file_exclude' => false,
'file_user_id' => get_current_user_id()
];
// update attachments
update_post_meta( $post_id, '_da_attachments', $attachments );
// check whether any files are already attached to this post
if ( ( $files_meta = get_post_meta( $attachment_id, '_da_posts', true ) ) !== '' && is_array( $files_meta ) && ! empty( $files_meta ) ) {
$files_meta[] = $post_id;
update_post_meta( $attachment_id, '_da_posts', array_unique( $files_meta ) );
} else
update_post_meta( $attachment_id, '_da_posts', [ $post_id ] );
// first time?
if ( get_post_meta( $attachment_id, '_da_downloads', true ) === '' )
update_post_meta( $attachment_id, '_da_downloads', 0 );
return true;
}
}
}
return false;
}
/**
* Unattach file from the post.
*
* @param int $attachment_id
* @param int $post_id
* @return bool
*/
function da_unattach_file( $attachment_id, $post_id ) {
// cast attachment id
$attachment_id = (int) $attachment_id;
// get attachments
$attachments = get_post_meta( (int) $post_id, '_da_attachments', true );
// any attachments?
if ( is_array( $attachments ) && array_key_exists( $attachment_id, $attachments ) ) {
// unattach attachment
unset( $attachments[$attachment_id] );
// update post attachments
update_post_meta( $post_id, '_da_attachments', $attachments );
if ( ( $files_meta = get_post_meta( $attachment_id, '_da_posts', true ) ) !== '' && is_array( $files_meta ) && ! empty( $files_meta ) ) {
foreach ( $files_meta as $key => $id ) {
if ( $id === $post_id ) {
unset( $files_meta[$key] );
// update attachment posts
update_post_meta( $attachment_id, '_da_posts', $files_meta );
break;
}
}
}
return true;
}
return false;
}
/**
* Get other templates (e.g. archives) passing attributes and including the file.
*
* @param string $template_name
* @param array $args
* @param string $template_path
* @param string $default_path
* @return void
*/
function da_get_template( $template_name, $args = [], $template_path = '', $default_path = '' ) {
if ( $args && is_array( $args ) )
extract( $args );
$located = da_locate_template( $template_name, $template_path, $default_path );
if ( ! file_exists( $located ) )
return;
do_action( 'da_template_part_before', $template_name, $template_path, $located, $args );
include( $located );
do_action( 'da_template_part_after', $template_name, $template_path, $located, $args );
}
/**
* Locate a template and return the path for inclusion.
*
* @param string $template_name
* @param string $template_path
* @param string $default_path
* @return string
*/
function da_locate_template( $template_name, $template_path = '', $default_path = '' ) {
if ( ! $template_path )
$template_path = TEMPLATEPATH . '/';
if ( ! $default_path )
$default_path = DOWNLOAD_ATTACHMENTS_PATH . 'templates/';
// look within passed path within the theme - this is priority
$template = locate_template( [ trailingslashit( $template_path ) . $template_name, $template_name ] );
// get default template
if ( ! $template )
$template = $default_path . $template_name;
// return what we found
return apply_filters( 'da_locate_template', $template, $template_name, $template_path );
}
/**
* Get single attachment download link.
*
* @param int $attachment_id
* @param bool $echo
* @param array $attr
* @return void|string
*/
function da_download_attachment_link( $attachment_id = 0, $echo = false, $attr = [] ) {
if ( get_post_type( $attachment_id ) === 'attachment' ) {
$options = Download_Attachments()->options;
$attr['title'] = ! empty( $attr['title'] ) ? $attr['title'] : get_the_title( $attachment_id );
$attr['class'] = ! empty( $attr['class'] ) ? $attr['class'] : "da-download-link da-download-attachment-$attachment_id";
// redirect to file?
if ( $options['download_method'] === 'redirect' )
$attr['target'] = $options['link_target'];
$attr = apply_filters( 'da_download_attachment_link_attributes', $attr, $attachment_id );
$attr = array_map( 'esc_attr', $attr );
$attr_html = '';
foreach ( $attr as $name => $value ) {
$attr_html .= ' ' . sanitize_key( $name ) . '="' . esc_attr( $value ) . '"';
}
$link = '<a href="' . esc_url( da_get_download_attachment_url( $attachment_id ) ) . '"' . $attr_html . '>' . esc_html( $attr['title'] ) . '</a>';
} else
$link = '';
if ( $echo === true )
echo apply_filters( 'da_download_attachment_link', $link );
else
return apply_filters( 'da_download_attachment_link', $link );
}
/**
* Get single attachment download URL.
*
* @param int $attachment_id
* @return string
*/
function da_get_download_attachment_url( $attachment_id = 0 ) {
if ( get_post_type( $attachment_id ) !== 'attachment' )
return '';
$options = Download_Attachments()->options;
$encrypted_id = isset( $options['encrypt_urls'] ) && $options['encrypt_urls'] ? da_encrypt_attachment_id( $attachment_id ) : $attachment_id;
$url = untrailingslashit( isset( $options['pretty_urls'] ) && $options['pretty_urls'] === true ? home_url( '/' . $options['download_link'] . '/' . $encrypted_id . '/' ) : DOWNLOAD_ATTACHMENTS_URL . '/includes/download.php?id=' . $encrypted_id );
return apply_filters( 'da_get_download_attachment_url', $url, $attachment_id );
}
/**
* Encrypt attachment ID for the URL.
*
* @param int $id
* @return string
*/
function da_encrypt_attachment_id( $id ) {
$auth_key = defined( 'AUTH_KEY' ) ? AUTH_KEY : false;
$auth_iv = defined( 'NONCE_KEY' ) ? NONCE_KEY : false;
$cipher = 'AES-256-CBC';
$php_71x = version_compare( phpversion(), '7.1.0', '>=' ) && version_compare( phpversion(), '7.2.0', '<' );
// openssl encryption
if ( $auth_key && $auth_iv && function_exists( 'openssl_encrypt' ) && in_array( $cipher, array_map( 'strtoupper', openssl_get_cipher_methods() ) ) )
$encrypted_id = strtr( base64_encode( openssl_encrypt( $id, $cipher, $auth_key, 1, mb_strimwidth( $auth_iv, 0, openssl_cipher_iv_length( $cipher ), '', 'UTF-8' ) ) ), '+/=', '-_,' );
// mcrypt encryption
elseif ( $auth_key && $auth_iv && ! $php_71x && function_exists( 'mcrypt_encrypt' ) && function_exists( 'mcrypt_get_key_size' ) && function_exists( 'mcrypt_get_iv_size' ) && defined( 'MCRYPT_BLOWFISH' ) ) {
// get max key size of the mcrypt mode
$max_key_size = mcrypt_get_key_size( MCRYPT_BLOWFISH, MCRYPT_MODE_CBC );
$max_iv_size = mcrypt_get_iv_size( MCRYPT_BLOWFISH, MCRYPT_MODE_CBC );
$encrypt_key = mb_strimwidth( $auth_key, 0, $max_key_size );
$encrypt_iv = mb_strimwidth( $auth_iv, 0, $max_iv_size );
$encrypted_id = strtr( base64_encode( mcrypt_encrypt( MCRYPT_BLOWFISH, $encrypt_key, $id, MCRYPT_MODE_CBC, $encrypt_iv ) ), '+/=', '-_,' );
// simple encryption
} elseif ( function_exists( 'gzdeflate' ) )
$encrypted_id = base64_encode( convert_uuencode( gzdeflate( $id ) ) );
// no encryption
else
$encrypted_id = strtr( base64_encode( convert_uuencode( $id ) ), '+/=', '-_,' );
return apply_filters( 'da_encrypt_attachment_id', $encrypted_id, $id );
}
/**
* Decrypt attachment ID for the URL.
*
* @param string $encrypted_id
* @return int
*/
function da_decrypt_attachment_id( $encrypted_id ) {
$auth_key = defined( 'AUTH_KEY' ) ? AUTH_KEY : false;
$auth_iv = defined( 'NONCE_KEY' ) ? NONCE_KEY : false;
$cipher = 'AES-256-CBC';
$php_71x = version_compare( phpversion(), '7.1.0', '>=' ) && version_compare( phpversion(), '7.2.0', '<' );
// openssl decryption
if ( $auth_key && $auth_iv && function_exists( 'openssl_encrypt' ) && in_array( $cipher, array_map( 'strtoupper', openssl_get_cipher_methods() ) ) )
$id = openssl_decrypt( base64_decode( strtr( $encrypted_id, '-_,', '+/=' ) ), $cipher, $auth_key, 1, mb_strimwidth( $auth_iv, 0, openssl_cipher_iv_length( $cipher ), '', 'UTF-8' ) );
// mcrypt decryption
elseif ( $auth_key && $auth_iv && ! $php_71x && function_exists( 'mcrypt_decrypt' ) && function_exists( 'mcrypt_get_key_size' ) && function_exists( 'mcrypt_get_iv_size' ) && defined( 'MCRYPT_BLOWFISH' ) ) {
// get max key size of the mcrypt mode
$max_key_size = mcrypt_get_key_size( MCRYPT_BLOWFISH, MCRYPT_MODE_CBC );
$max_iv_size = mcrypt_get_iv_size( MCRYPT_BLOWFISH, MCRYPT_MODE_CBC );
$encrypt_key = mb_strimwidth( $auth_key, 0, $max_key_size );
$encrypt_iv = mb_strimwidth( $auth_iv, 0, $max_iv_size );
$id = rtrim( mcrypt_decrypt( MCRYPT_BLOWFISH, $encrypt_key, base64_decode( strtr( $encrypted_id, '-_,', '+/=' ) ), MCRYPT_MODE_CBC, $encrypt_iv ), "\0" );
// simple decryption
} elseif ( function_exists( 'gzinflate' ) )
$id = gzinflate( convert_uudecode( base64_decode( $encrypted_id ) ) );
// no decryption
else
$id = convert_uudecode( base64_decode( strtr( $encrypted_id, '-_,', '+/=' ) ) );
return (int) apply_filters( 'da_decrypt_attachment_id', $id, $encrypted_id );
}
/**
* Get single attachment download data.
*
* @param int $attachment_id
* @return false|array
*/
function da_get_download_attachment( $attachment_id = 0 ) {
$attachment_id = ! empty( $attachment_id ) ? absint( $attachment_id ) : 0;
// break if there's no attachment ID given
if ( empty( $attachment_id ) )
return false;
// break if given ID is not for attachment
if ( get_post_type( $attachment_id ) != 'attachment' )
return false;
$post = get_post( $attachment_id );
$filename = get_attached_file( $attachment_id );
$filetype = wp_check_filetype( $filename );
// adjust extension type
switch ( $filetype['ext'] ) {
case 'jpeg' :
$extension = 'jpg';
break;
case 'docx' :
$extension = 'doc';
break;
case 'xlsx' :
$extension = 'xls';
break;
default :
$extension = $filetype['ext'];
break;
}
$extension = apply_filters( 'da_file_extension_type', $extension );
$attachment['title'] = get_the_title( $attachment_id );
$attachment['caption'] = trim( $post->post_excerpt );
$attachment['description'] = trim( $post->post_content );
$attachment['date'] = date_i18n( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ), strtotime( $post->post_date ) );
$attachment['size'] = size_format( file_exists( $filename ) ? filesize( $filename ) : 0 );
$attachment['type'] = $extension;
$attachment['downloads'] = (int) get_post_meta( $attachment_id, '_da_downloads', true );
$attachment['url'] = da_get_download_attachment_url( $attachment_id );
$attachment['icon_url'] = ( file_exists( DOWNLOAD_ATTACHMENTS_PATH . 'images/ext/' . $extension . '.gif' ) ? DOWNLOAD_ATTACHMENTS_URL . '/images/ext/' . $extension . '.gif' : DOWNLOAD_ATTACHMENTS_URL . '/images/ext/unknown.gif' );
return (array) apply_filters( 'da_get_download_attachment', $attachment, $attachment_id );
}
/**
* Process attachment download.
*
* @param int $attachment_id
* @return void|false
*/
function da_download_attachment( $attachment_id = 0 ) {
if ( get_post_type( $attachment_id ) === 'attachment' ) {
// get options
$options = Download_Attachments()->options;
if ( ! isset( $options['download_method'] ) )
$options['download_method'] = 'force';
// get wp upload directory data
$uploads = wp_upload_dir();
// get file name
$attachment = get_post_meta( $attachment_id, '_wp_attached_file', true );
// get downloads count
$downloads_count = (int) get_post_meta( $attachment_id, '_da_downloads', true );
// force download
if ( $options['download_method'] === 'force' ) {
// get file path
$filepath = apply_filters( 'da_download_attachment_filepath', $uploads['basedir'] . '/' . $attachment, $attachment_id );
// file exists?
if ( ! file_exists( $filepath ) || ! is_readable( $filepath ) )
return false;
// if filename contains folders
if ( ( $position = strrpos( $attachment, '/', 0 ) ) !== false )
$filename = substr( $attachment, $position + 1 );
else
$filename = $attachment;
// disable compression
if ( ini_get( 'zlib.output_compression' ) )
@ini_set( 'zlib.output_compression', 0 );
if ( function_exists( 'apache_setenv' ) )
@apache_setenv( 'no-gzip', 1 );
// disable max execution time limit
if ( ! in_array( 'set_time_limit', explode( ',', ini_get( 'disable_functions' ) ) ) && ! ini_get( 'safe_mode' ) )
@set_time_limit( 0 );
// set needed headers
nocache_headers();
header( 'Robots: none' );
header( 'Content-Type: application/download' );
header( 'Content-Description: File Transfer' );
header( 'Content-Disposition: attachment; filename=' . rawurldecode( $filename ) );
header( 'Content-Transfer-Encoding: binary' );
header( 'Accept-Ranges: bytes' );
header( 'Expires: 0' );
header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0' );
header( 'Pragma: public' );
header( 'Content-Length: ' . filesize( $filepath ) );
// increase downloads count
update_post_meta( $attachment_id, '_da_downloads', $downloads_count + 1, $downloads_count );
// action hook
do_action( 'da_process_file_download', $attachment_id );
// start printing file
if ( $filepath = fopen( $filepath, 'rb' ) ) {
while ( ! feof( $filepath ) && ( ! connection_aborted() ) ) {
echo fread( $filepath, 1048576 );
flush();
}
fclose( $filepath );
} else
return false;
exit;
// redirect to file
} else {
// increase downloads count
update_post_meta( $attachment_id, '_da_downloads', $downloads_count + 1, $downloads_count );
// action hook
do_action( 'da_process_file_download', $attachment_id );
// force file url
header( 'Location: ' . apply_filters( 'da_download_attachment_filepath', $uploads['baseurl'] . '/' . $attachment, $attachment_id ) );
exit;
}
// not an attachment
} else
return false;
}
/**
* Get most downloaded attachments.
*
* @param array $args
* @return array
*/
if ( ! function_exists( 'da_get_most_downloaded_attachments' ) ) {
function da_get_most_downloaded_attachments( $args = [] ) {
$args = array_merge(
[
'posts_per_page' => 10,
'order' => 'desc'
],
$args
);
$args = apply_filters( 'da_get_most_downloaded_attachments_args', $args );
// force important arguments
$args['suppress_filters'] = false;
$args['post_type'] = 'attachment';
$args['orderby'] = 'meta_value_num';
$args['meta_key'] = '_da_downloads';
$args['fields'] = '';
$args['meta_query'] = [
'relation' => 'OR',
[
'key' => '_da_downloads',
'compare' => 'EXISTS'
],
[
'key' => '_da_downloads',
'value' => 'something',
'compare' => 'NOT EXISTS'
]
];
return (array) apply_filters( 'da_get_most_downloaded_attachments', get_posts( $args ), $args );
}
}
/**
* Get attachment downloads.
*
* @param int $post_id
* @return int
*/
if ( ! function_exists( 'da_get_attachment_downloads' ) ) {
function da_get_attachment_downloads( $post_id = 0 ) {
$post_id = (int) $post_id;
$downloads = ( $post_id > 0 ? (int) get_post_meta( $post_id, '_da_downloads', true ) : 0 );
return (int) apply_filters( 'da_get_attachment_downloads', $downloads, $post_id );
}
}
/**
* Display a list of most downloaded attachments.
*
* @param array $args
* @param bool $display
* @return void|string
*/
if ( ! function_exists( 'da_most_downloaded_attachments' ) ) {
function da_most_downloaded_attachments( $args = [], $display = true ) {
$defaults = [
'number_of_posts' => 5,
'link_type' => 'page',
'order' => 'desc',
'show_attachment_downloads' => true,
'show_attachment_icon' => true,
'show_attachment_excerpt' => false,
'no_attachments_message' => __( 'No Attachments', 'download-attachments' )
];
$args = apply_filters( 'da_most_downloaded_attachments_args', wp_parse_args( $args, $defaults ) );
$args['show_attachment_downloads'] = (bool) $args['show_attachment_downloads'];
$args['show_attachment_icon'] = (bool) $args['show_attachment_icon'];
$args['show_attachment_excerpt'] = (bool) $args['show_attachment_excerpt'];
$attachments = da_get_most_downloaded_attachments(
[
'posts_per_page' => ( isset( $args['number_of_posts'] ) ? (int) $args['number_of_posts'] : $defaults['number_of_posts'] ),
'order' => ( isset( $args['order'] ) ? $args['order'] : $defaults['order'] )
]
);
if ( ! empty( $attachments ) ) {
$html = '
<ul>';
foreach ( $attachments as $attachment ) {
setup_postdata( $attachment );
$filetype = wp_check_filetype( get_attached_file( $attachment->ID ) );
// adjust extension type
switch ( $filetype['ext'] ) {
case 'jpeg' :
$extension = 'jpg';
break;
case 'docx' :
$extension = 'doc';
break;
case 'xlsx' :
$extension = 'xls';
break;
default :
$extension = $filetype['ext'];
break;
}
$extension = apply_filters( 'da_file_extension_type', $extension );
$html .= '
<li>';
if ( $args['show_attachment_icon'] ) {
$html .= '
<span class="post-icon">
<img class="attachment-icon" src="' . esc_url( file_exists( DOWNLOAD_ATTACHMENTS_PATH . 'images/ext/' . $extension . '.gif' ) ? DOWNLOAD_ATTACHMENTS_URL . '/images/ext/' . $extension . '.gif' : DOWNLOAD_ATTACHMENTS_URL . '/images/ext/unknown.gif' ) . '" alt="" />
</span>';
}
$html .= '
<a class="post-title" href="' . esc_url( $args['link_type'] === 'page' ? get_permalink( $attachment->ID ) : da_get_download_attachment_url( $attachment->ID ) ) . '">' . esc_html( get_the_title( $attachment->ID ) ) . '</a>' . ( $args['show_attachment_downloads'] ? ' <span class="count">(' . esc_html( number_format_i18n( da_get_attachment_downloads( $attachment->ID ) ) ) . ')</span>' : '' );
$excerpt = '';
if ( $args['show_attachment_excerpt'] ) {
if ( empty( $attachment->post_excerpt ) )
$text = $attachment->post_content;
else
$text = $attachment->post_excerpt;
if ( ! empty( $text ) )
$excerpt = wp_trim_words( str_replace( ']]>', ']]>', strip_shortcodes( $text ) ), apply_filters( 'excerpt_length', 55 ), apply_filters( 'excerpt_more', ' […]' ) );
}
if ( ! empty( $excerpt ) )
$html .= '
<div class="post-excerpt">' . esc_html( $excerpt ) . '</div>';
$html .= '
</li>';
}
wp_reset_postdata();
$html .= '
</ul>';
} else
$html = $args['no_attachments_message'];
$html = apply_filters( 'da_most_downloaded_attachments_html', $html, $args );
if ( $display )
echo $html;
else
return $html;
}
}