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<?php
namespace EnableMediaReplace;
use EnableMediaReplace\ShortPixelLogger\ShortPixelLogger as Log;
use EnableMediaReplace\Notices\NoticeController as Notices;
use EnableMediaReplace\FileSystem\Controller\FileSystemController as FileSystem;
use EnableMediaReplace\Controller\RemoteNoticeController as RemoteNoticeController;
use EnableMediaReplace\Ajax;
// Does what a plugin does.
class EnableMediaReplacePlugin
{
protected $plugin_path;
private static $instance;
private $user_cap = false;
private $general_cap = false;
private $features = array();
public function __construct()
{
add_action('plugins_loaded', array($this, 'runtime')); //lowInit, before theme setup!
add_action('admin_init', array($this, 'adminInit')); // adminInit, after functions.php
}
public function runtime()
{
$this->nopriv_plugin_actions();
if (EMR_CAPABILITY !== false) {
if (is_array(EMR_CAPABILITY)) {
$this->general_cap = EMR_CAPABILITY[0];
$this->user_cap = EMR_CAPABILITY[1];
if (! current_user_can($this->general_cap) && ! current_user_can($this->user_cap)) {
return;
}
} else {
$this->general_cap = EMR_CAPABILITY;
if (! current_user_can($this->general_cap)) {
return;
}
}
} elseif (! current_user_can('upload_files')) {
return;
}
new Externals();
$this->plugin_actions(); // init
}
public function adminInit()
{
$this->features['replace'] = true; // does nothing just for completeness
$this->features['background'] = apply_filters('emr/feature/background', true);
$this->features['remote_notice'] = apply_filters('emr/feature/remote_notice', true);
load_plugin_textdomain('enable-media-replace', false, basename(dirname(EMR_ROOT_FILE)) . '/languages');
// Load Submodules
new Ajax();
}
public function filesystem()
{
return new FileSystem();
}
public function uiHelper()
{
return Uihelper::getInstance();
}
public function useFeature($name)
{
// If for some obscure reason, it's called earlier or out of admin, still load the features.
if (count($this->features) === 0)
{
$this->adminInit();
}
switch($name)
{
case 'background':
$bool = $this->features['background'];
break;
case 'remote_notice':
$bool = $this->features['remote_notice'];
break;
default:
$bool = false;
break;
}
return $bool;
}
public static function get()
{
if (is_null(self::$instance)) {
self::$instance = new EnableMediaReplacePlugin();
}
$log = Log::getInstance();
if (Log::debugIsActive()) {
$uploaddir = wp_upload_dir(null, false, false);
if (isset($uploaddir['basedir'])) {
$log->setLogPath( trailingslashit($uploaddir['basedir']) . "emr_log");
}
}
return self::$instance;
}
// Actions for EMR that always need to hook
protected function nopriv_plugin_actions()
{
// shortcode
add_shortcode('file_modified', array($this, 'get_modified_date'));
}
public function plugin_actions()
{
$this->plugin_path = plugin_dir_path(EMR_ROOT_FILE);
//$this->plugin_url = plugin_dir_url(EMR_ROOT_FILE);
// loads the dismiss hook.
$notices = Notices::getInstance();
// init plugin
add_action('admin_menu', array($this,'menu'));
add_action('submenu_file', array($this, 'hide_sub_menu'));
add_action( 'current_screen', array($this, 'setScreen') ); // annoying workaround for notices in edit-attachment screen
add_action('admin_enqueue_scripts', array($this,'admin_scripts'));
// content filters
add_filter('media_row_actions', array($this,'add_media_action'), 10, 2);
add_action('attachment_submitbox_misc_actions', array($this,'admin_date_replaced_media_on_edit_media_screen'), 91);
//add_filter('upload_mimes', array($this,'add_mime_types'), 1, 1);
// notices
// editors
add_action('add_meta_boxes_attachment', array($this, 'add_meta_boxes'), 10, 2);
add_filter('attachment_fields_to_edit', array($this, 'attachment_editor'), 10, 2);
/** Just after an image is replaced, try to browser decache the images */
if (isset($_GET['emr_replaced']) && intval($_GET['emr_replaced'] == 1)) {
add_filter('wp_get_attachment_image_src', array($this, 'attempt_uncache_image'), 10, 4);
// adds a metabox to list thumbnails. This is a cache reset hidden as feature.
//add_action( 'add_meta_boxes', function () { );
add_filter('postbox_classes_attachment_emr-showthumbs-box', function ($classes) {
$classes[] = 'closed';
return $classes;
});
}
}
/**
* Register this file in WordPress so we can call it with a ?page= GET var.
* To suppress it in the menu we give it an empty menu title.
*/
public function menu()
{
$title = esc_html__("Replace media", "enable-media-replace");
$title = (isset($_REQUEST['action']) && ($_REQUEST['action'] === 'emr_prepare_remove')) ? esc_html__("Remove background", "enable-media-replace") : $title;
add_submenu_page('upload.php',$title, $title, 'upload_files', 'enable-media-replace/enable-media-replace.php', array($this, 'route'));
}
public function hide_sub_menu($submenu_file)
{
global $plugin_page;
// Select another submenu item to highlight (optional).
if ( $plugin_page && $plugin_page == 'enable-media-replace/enable-media-replace.php' ) {
$submenu_file = 'upload.php';
}
// Hide the submenu.
remove_submenu_page( 'upload.php', 'enable-media-replace/enable-media-replace.php' );
return $submenu_file;
}
public function setScreen()
{
$screen = get_current_screen();
$notice_pages = array('attachment', 'media_page_enable-media-replace/enable-media-replace', 'upload' );
if ( in_array($screen->id, $notice_pages) && true === emr()->useFeature('remote_notice'))
{
RemoteNoticeController::getInstance(); // check for remote stuff
$notices = Notices::getInstance();
$notices->loadIcons(array(
'normal' => '<img class="emr-notice-icon" src="' . plugins_url('img/notices/slider.png', EMR_ROOT_FILE) . '">',
'success' => '<img class="emr-notice-icon" src="' . plugins_url('img/notices/robo-cool.png', EMR_ROOT_FILE) . '">',
'warning' => '<img class="emr-notice-icon" src="' . plugins_url('img/notices/robo-scared.png', EMR_ROOT_FILE) . '">',
'error' => '<img class="emr-notice-icon" src="' . plugins_url('img/notices/robo-scared.png', EMR_ROOT_FILE) . '">',
));
add_action('admin_notices', array($notices, 'admin_notices')); // previous page / init time
}
}
/** Load EMR views based on request */
public function route()
{
global $plugin_page;
switch ($plugin_page) {
case 'enable-media-replace/enable-media-replace.php':
$action = isset($_GET['action']) ? sanitize_text_field($_GET['action']) : '';
wp_enqueue_style('emr_style');
wp_enqueue_script('jquery-ui-datepicker');
wp_enqueue_style('jquery-ui-datepicker');
wp_enqueue_script('emr_admin');
$this->uiHelper()->featureNotice();
if ($action == 'media_replace') {
if (array_key_exists("attachment_id", $_GET) && intval($_GET["attachment_id"]) > 0) {
wp_enqueue_script('emr_upsell');
$controller = \EnableMediaReplace\ViewController\ReplaceViewController::getInstance();
$controller->load();
// require_once($this->plugin_path . "views/popup.php"); // warning variables like $action be overwritten here.
}
}
elseif ($action == 'media_replace_upload') {
$controller = \EnableMediaReplace\ViewController\UploadViewController::getInstance();
$controller->load();
// require_once($this->plugin_path . 'views/upload.php');
}
elseif ('emr_prepare_remove' === $action && $this->useFeature('background')) {
// $attachment_id = intval($_GET['attachment_id']);
// $attachment = get_post($attachment_id);
//We're adding a timestamp to the image URL for cache busting
wp_enqueue_script('emr_remove_bg');
wp_enqueue_style('emr_style');
wp_enqueue_style('emr-remove-background');
wp_enqueue_script('emr_upsell');
$controller = \EnableMediaReplace\ViewController\RemoveBackgroundViewController::getInstance();
$controller->load();
// require_once($this->plugin_path . "views/prepare-remove-background.php");
} elseif ('do_background_replace' === $action &&
$this->useFeature('background')
) {
$controller = \EnableMediaReplace\ViewController\RemoveBackgroundViewController::getInstance();
$controller->loadPost();
// require_once($this->plugin_path . 'views/do-replace-background.php');
}
else {
exit('Something went wrong loading page, please try again');
}
break;
} // Route
}
public function getPluginURL($path = '')
{
return plugins_url($path, EMR_ROOT_FILE);
}
public function plugin_path($path = '')
{
$plugin_path = trailingslashit(plugin_dir_path(EMR_ROOT_FILE));
if ( strlen( $path ) > 0 ) {
$plugin_path .= $path;
}
return $plugin_path;
}
/** register styles and scripts
*
* Nothing should ever by -enqueued- here, just registered.
*/
public function admin_scripts()
{
if (is_rtl()) {
wp_register_style('emr_style', plugins_url('css/admin.rtl.css', EMR_ROOT_FILE));
} else {
wp_register_style('emr_style', plugins_url('css/admin.css', EMR_ROOT_FILE));
}
wp_register_style('emr_edit-attachment', plugins_url('css/edit_attachment.css', EMR_ROOT_FILE));
wp_register_style('emr-remove-background', plugins_url('css/remove_background.css', EMR_ROOT_FILE));
$mimes = array_values(get_allowed_mime_types());
wp_register_script('emr_admin', plugins_url('js/emr_admin.js', EMR_ROOT_FILE), array('jquery'), EMR_VERSION, true);
$emr_options = array(
'dateFormat' => $this->convertdate(get_option('date_format')),
'maxfilesize' => wp_max_upload_size(),
'allowed_mime' => $mimes,
);
wp_register_script('emr_upsell', plugins_url('js/upsell.js', EMR_ROOT_FILE), array('jquery'), EMR_VERSION, true);
wp_localize_script('emr_upsell', 'emr_upsell', array(
'ajax' => admin_url('admin-ajax.php'),
'installing' => __('Installing ...', 'enable-media-replace'),
));
$ts = time();
$ajax_url = admin_url('admin-ajax.php');
wp_register_script('emr_remove_bg', plugins_url('js/remove_bg.js', EMR_ROOT_FILE), array('jquery'), EMR_VERSION, true);
wp_localize_script('emr_remove_bg', 'emrObject', array(
'ajax_url' => $ajax_url,
'nonce' => wp_create_nonce('emr_remove_background')
));
if (Log::debugIsActive()) {
$emr_options['is_debug'] = true;
}
wp_localize_script('emr_admin', 'emr_options', $emr_options);
wp_register_script('emr_success', plugins_url('js/emr_success.js', EMR_ROOT_FILE), array(), EMR_VERSION, true);
wp_localize_script('emr_success', 'emr_success_options', array(
'timeout' => apply_filters('emr/success/timeout', 5),
));
}
/** Utility function for the Jquery UI Datepicker */
public function convertdate($sFormat)
{
switch ($sFormat) {
//Predefined WP date formats
case 'F j, Y':
return( 'MM dd, yy' );
break;
case 'Y/m/d':
return( 'yy/mm/dd' );
break;
case 'm/d/Y':
return( 'mm/dd/yy' );
break;
case 'd/m/Y':
default:
return( 'dd/mm/yy' );
break;
}
}
public function checkImagePermission($post)
{
if (! is_object($post))
{
return false;
}
$post_id = $post->ID;
$post_type = $post->post_type;
$author_id = $post->post_author;
if ($post_type !== 'attachment')
return false;
if (is_null($post_id) || intval($post_id) >! 0)
{
return false;
}
if ($this->general_cap === false && $this->user_cap === false) {
if (current_user_can('edit_post', $post_id) === true) {
return true;
}
} elseif (current_user_can($this->general_cap)) {
return true;
} elseif (current_user_can($this->user_cap) && $author_id == get_current_user_id()) {
return true;
}
return false;
}
/** Get the URL to the media replace page
* @param $attach_id The attachment ID to replace
* @return Admin URL to the page.
*/
protected function getMediaReplaceURL($attach_id)
{
$url = admin_url("upload.php");
$url = add_query_arg(array(
'page' => 'enable-media-replace/enable-media-replace.php',
'action' => 'media_replace',
'attachment_id' => $attach_id,
), $url);
return $url;
}
protected function getRemoveBgURL($attach_id)
{
$url = admin_url("upload.php");
$url = add_query_arg(array(
'page' => 'enable-media-replace/enable-media-replace.php',
'action' => 'emr_prepare_remove',
'attachment_id' => $attach_id,
), $url);
return $url;
}
public function add_meta_boxes($post)
{
// Because some plugins don't like to play by the rules.
if (is_null($post) || ! is_object($post) ) {
return false;
}
if (! $this->checkImagePermission($post)) {
return;
}
add_meta_box('emr-replace-box', __('Replace Media', 'enable-media-replace'), array($this, 'replace_meta_box'), 'attachment', 'side', 'low');
if (isset($_GET['emr_replaced']) && intval($_GET['emr_replaced'] == 1)) {
add_meta_box('emr-showthumbs-box', __('Replaced Thumbnails Preview', 'enable-media-replace'), array($this, 'show_thumbs_box'), 'attachment', 'side', 'low');
}
}
public function replace_meta_box($post)
{
//Replace media button
$replace_url = $this->getMediaReplaceURL($post->ID);
$replace_action = "media_replace";
$replace_editurl = wp_nonce_url($replace_url, $replace_action);
$replace_link = "href=\"$replace_editurl\"";
echo "<p><a class='button-secondary' $replace_link>" . esc_html__("Upload a new file", "enable-media-replace") . "</a></p><p>" . esc_html__("To replace the current file, click the link and upload a replacement file.", "enable-media-replace") . "</p>";
//Remove background button
$removeBg_url = $this->getRemoveBgURL($post->ID);
$removeBg_action = "emr_prepare_remove";
$removeBg_editurl = wp_nonce_url($removeBg_url, $removeBg_action);
$removeBg_link = "href=\"$removeBg_editurl\"";
if ($this->uiHelper()->isBackgroundRemovable($post))
{
echo "<p><a class='button-secondary' $removeBg_link>" . esc_html__("Remove background", "enable-media-replace") . "</a></p><p>" . esc_html__("To remove the background, click the link and select the options.", "enable-media-replace") . "</p>";
}
}
public function show_thumbs_box($post)
{
if (! $this->checkImagePermission($post)) {
return;
}
wp_enqueue_style('emr_edit-attachment');
$meta = wp_get_attachment_metadata($post->ID);
if (! isset($meta['sizes'])) {
echo __('Thumbnails were not generated', 'enable-media-replace');
return false;
}
if (function_exists('wp_get_original_image_url')) { // indicating WP 5.3+
$source_url = wp_get_original_image_url($post->ID);
// oldway will give -scaled in case of scaling.
$source_url_oldway = wp_get_attachment_url($post->ID);
if ($source_url !== $source_url_oldway) {
echo "<div class='original previewwrapper'><img src='" . $source_url_oldway . "'><span class='label'>" . __('Original') . "</span></div>";
}
}
foreach ($meta['sizes'] as $size => $data) {
$display_size = ucfirst(str_replace("_", " ", $size));
$img = wp_get_attachment_image_src($post->ID, $size);
echo "<div class='$size previewwrapper'><img src='" . $img[0] . "'><span class='label'>$display_size</span></div>";
}
}
public function attachment_editor($form_fields, $post)
{
$screen = null;
if (! $this->checkImagePermission($post)) {
return $form_fields;
}
if (function_exists('get_current_screen')) {
$screen = get_current_screen();
if (! is_null($screen) && $screen->id == 'attachment') { // hide on edit attachment screen.
return $form_fields;
}
}
$url = $this->getMediaReplaceURL($post->ID);
$action = "media_replace";
$editurl = wp_nonce_url($url, $action);
$link = "href=\"$editurl\"";
$form_fields["enable-media-replace"] = array(
"label" => esc_html__("Replace media", "enable-media-replace"),
"input" => "html",
"html" => "<a class='button-secondary' $link>" . esc_html__("Upload a new file", "enable-media-replace") . "</a>", "helps" => esc_html__("To replace the current file, click the link and upload a replacement file.", "enable-media-replace")
);
if ($this->uiHelper()->isBackgroundRemovable($post))
{
$link = $this->getRemoveBgURL($post->ID);
$link = "href='" . wp_nonce_url($link, 'emr_prepare_remove') . "'";
$form_fields["emr-remove-background"] = array(
"label" => esc_html__("Remove background", "enable-media-replace"),
"input" => "html",
"html" => "<a class='button-secondary' $link>" . esc_html__("Remove background", "enable-media-replace") . "</a>", "helps" => esc_html__("To remove the background, click the link.", "enable-media-replace")
);
}
return $form_fields;
}
/**
* @param array $mime_types
* @return array
*/
/* Off, no clue why this is here.
public function add_mime_types($mime_types)
{
$mime_types['dat'] = 'text/plain'; // Adding .dat extension
return $mime_types;
}
*/
/**
* Function called by filter 'media_row_actions'
* Enables linking to EMR straight from the media library
*/
public function add_media_action($actions, $post)
{
if (! $this->checkImagePermission($post)) {
return $actions;
}
$media_replace_editurl = $this->getMediaReplaceURL($post->ID);
$media_replace_action = "media_replace";
// $media_replace_editurl = wp_nonce_url($url, $media_replace_action);
$url = $this->getRemoveBgURL($post->ID);
$background_remove_action = "emr_prepare_remove";
$background_remove_editurl = wp_nonce_url($url, $background_remove_action);
/* See above, not needed.
if (FORCE_SSL_ADMIN) {
$editurl = str_replace("http:", "https:", $editurl);
} */
$media_replace_link = "href=\"$media_replace_editurl\"";
$background_remove_link = "href=\"$background_remove_editurl\"";
$newaction['media_replace'] = '<a ' . $media_replace_link . ' aria-label="' . esc_attr__("Replace media", "enable-media-replace") . '" rel="permalink">' . esc_html__("Replace media", "enable-media-replace") . '</a>';
if ($this->uiHelper()->isBackgroundRemovable($post))
{
$newaction['remove_background'] = '<a ' . $background_remove_link . ' aria-label="' . esc_attr__("Remove background", "enable-media-replace") . '" rel="permalink">' . esc_html__("Remove background", "enable-media-replace") . '</a>';
}
return array_merge($actions, $newaction);
}
/** Outputs the replaced date of the media on the edit_attachment screen
*
* @param $post Obj Post Object
*/
function admin_date_replaced_media_on_edit_media_screen($post)
{
// Fallback for before version 4.9, doens't pass post.
if (! is_object($post)) {
global $post;
}
if (! is_object($post)) { // try to global, if it doesn't work - return.
return false;
}
$post_id = $post->ID;
if ($post->post_modified !== $post->post_date) {
$modified = date_i18n(__('M j, Y @ H:i'), strtotime($post->post_modified));
?>
<div class="misc-pub-section curtime">
<span id="timestamp"><?php echo esc_html__('Revised', 'enable-media-replace'); ?>: <b><?php echo $modified; ?></b></span>
</div>
<?php
}
$author_id = get_post_meta($post_id, '_emr_replace_author', true);
if ($author_id) {
$display_name = get_the_author_meta('display_name', $author_id);
?>
<div class="misc-pub-section replace_author">
<span><?php echo esc_html__('Replaced By', 'enable-media-replace'); ?>: <b><?php echo $display_name; ?></b></span>
</div>
<?php
}
}
/** When an image is just replaced, it can stuck in the browser cache making a look like it was not replaced. Try
* undo that effect by adding a timestamp to the query string */
public function attempt_uncache_image($image, $attachment_id, $size, $icon)
{
if ($image === false) {
return $image;
}
// array with image src on 0
$image[0] = add_query_arg('time', time(), $image[0]);
return $image;
}
/**
* Shorttag function to show the media file modification date/time.
* @param array shorttag attributes
* @return string content / replacement shorttag
* @todo Note this returns the wrong date, ie. server date not corrected for timezone. Function could be removed altogether, not sure about purpose.
*/
public function get_modified_date($args)
{
$id = isset($args['id']) ? intval($args['id']) : false;
$format = isset($args['format']) ? sanitize_text_field($args['format']) : false;
if (false === $id)
{
return false;
}
// Get path to file
$current_file = get_attached_file($id);
if (! file_exists($current_file)) {
return false;
}
// Get file modification time
$filetime = filemtime($current_file);
if (false === $format)
{
$format = get_option( 'date_format' ) . ' ' . get_option( 'time_format' );
}
if (false !== $filetime) {
// do date conversion
return wp_date($format, $filetime);
}
return false;
}
} // class