<?php
function wp_crop_image($src, $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs = false, $dst_file = false)
{
$src_file = $src;
if (is_numeric($src)) {
$src_file = get_attached_file($src);
if (!file_exists($src_file)) {
$src = _load_image_to_edit_path($src, 'full');
} else {
$src = $src_file;
}
}
$editor = wp_get_image_editor($src);
if (is_wp_error($editor)) {
return $editor;
}
$src = $editor->crop($src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs);
if (is_wp_error($src)) {
return $src;
}
if (!$dst_file) {
$dst_file = str_replace(wp_basename($src_file), 'cropped-' . wp_basename($src_file), $src_file);
}
wp_mkdir_p(dirname($dst_file));
$dst_file = dirname($dst_file) . '/' . wp_unique_filename(dirname($dst_file), wp_basename($dst_file));
$result = $editor->save($dst_file);
if (is_wp_error($result)) {
return $result;
}
return $dst_file;
}
function wp_get_missing_image_subsizes($attachment_id)
{
if (!wp_attachment_is_image($attachment_id)) {
return array();
}
$registered_sizes = wp_get_registered_image_subsizes();
$image_meta = wp_get_attachment_metadata($attachment_id);
if (empty($image_meta)) {
return $registered_sizes;
}
if (!empty($image_meta['original_image'])) {
$image_file = wp_get_original_image_path($attachment_id);
$imagesize = wp_getimagesize($image_file);
}
if (!empty($imagesize)) {
$full_width = $imagesize[0];
$full_height = $imagesize[1];
} else {
$full_width = (int) $image_meta['width'];
$full_height = (int) $image_meta['height'];
}
$possible_sizes = array();
foreach ($registered_sizes as $size_name => $size_data) {
if (image_resize_dimensions($full_width, $full_height, $size_data['width'], $size_data['height'], $size_data['crop'])) {
$possible_sizes[$size_name] = $size_data;
}
}
if (empty($image_meta['sizes'])) {
$image_meta['sizes'] = array();
}
$missing_sizes = array_diff_key($possible_sizes, $image_meta['sizes']);
return apply_filters('wp_get_missing_image_subsizes', $missing_sizes, $image_meta, $attachment_id);
}
function wp_update_image_subsizes($attachment_id)
{
$image_meta = wp_get_attachment_metadata($attachment_id);
$image_file = wp_get_original_image_path($attachment_id);
if (empty($image_meta) || !is_array($image_meta)) {
if (!empty($image_file)) {
$image_meta = wp_create_image_subsizes($image_file, $attachment_id);
} else {
return new WP_Error('invalid_attachment', __('The attached file cannot be found.'));
}
} else {
$missing_sizes = wp_get_missing_image_subsizes($attachment_id);
if (empty($missing_sizes)) {
return $image_meta;
}
$image_meta = _wp_make_subsizes($missing_sizes, $image_file, $image_meta, $attachment_id);
}
$image_meta = apply_filters('wp_generate_attachment_metadata', $image_meta, $attachment_id, 'update');
wp_update_attachment_metadata($attachment_id, $image_meta);
return $image_meta;
}
function _wp_image_meta_replace_original($saved_data, $original_file, $image_meta, $attachment_id)
{
$new_file = $saved_data['path'];
update_attached_file($attachment_id, $new_file);
$image_meta['width'] = $saved_data['width'];
$image_meta['height'] = $saved_data['height'];
$image_meta['file'] = _wp_relative_upload_path($new_file);
$image_meta['original_image'] = wp_basename($original_file);
return $image_meta;
}
function wp_create_image_subsizes($file, $attachment_id)
{
$imagesize = wp_getimagesize($file);
if (empty($imagesize)) {
return array();
}
$image_meta = array('width' => $imagesize[0], 'height' => $imagesize[1], 'file' => _wp_relative_upload_path($file), 'sizes' => array());
$exif_meta = wp_read_image_metadata($file);
if ($exif_meta) {
$image_meta['image_meta'] = $exif_meta;
}
if ('image/png' !== $imagesize['mime']) {
$threshold = (int) apply_filters('big_image_size_threshold', 2560, $imagesize, $file, $attachment_id);
if ($threshold && ($image_meta['width'] > $threshold || $image_meta['height'] > $threshold)) {
$editor = wp_get_image_editor($file);
if (is_wp_error($editor)) {
return $image_meta;
}
$resized = $editor->resize($threshold, $threshold);
$rotated = null;
if (!is_wp_error($resized) && is_array($exif_meta)) {
$resized = $editor->maybe_exif_rotate();
$rotated = $resized;
}
if (!is_wp_error($resized)) {
$saved = $editor->save($editor->generate_filename('scaled'));
if (!is_wp_error($saved)) {
$image_meta = _wp_image_meta_replace_original($saved, $file, $image_meta, $attachment_id);
if (true === $rotated && !empty($image_meta['image_meta']['orientation'])) {
$image_meta['image_meta']['orientation'] = 1;
}
} else {
}
} else {
}
} elseif (!empty($exif_meta['orientation']) && 1 !== (int) $exif_meta['orientation']) {
$editor = wp_get_image_editor($file);
if (is_wp_error($editor)) {
return $image_meta;
}
$rotated = $editor->maybe_exif_rotate();
if (true === $rotated) {
$saved = $editor->save($editor->generate_filename('rotated'));
if (!is_wp_error($saved)) {
$image_meta = _wp_image_meta_replace_original($saved, $file, $image_meta, $attachment_id);
if (!empty($image_meta['image_meta']['orientation'])) {
$image_meta['image_meta']['orientation'] = 1;
}
} else {
}
}
}
}
wp_update_attachment_metadata($attachment_id, $image_meta);
$new_sizes = wp_get_registered_image_subsizes();
$new_sizes = apply_filters('intermediate_image_sizes_advanced', $new_sizes, $image_meta, $attachment_id);
return _wp_make_subsizes($new_sizes, $file, $image_meta, $attachment_id);
}
function _wp_make_subsizes($new_sizes, $file, $image_meta, $attachment_id)
{
if (empty($image_meta) || !is_array($image_meta)) {
return array();
}
if (isset($image_meta['sizes']) && is_array($image_meta['sizes'])) {
foreach ($image_meta['sizes'] as $size_name => $size_meta) {
if (array_key_exists($size_name, $new_sizes)) {
unset($new_sizes[$size_name]);
}
}
} else {
$image_meta['sizes'] = array();
}
if (empty($new_sizes)) {
return $image_meta;
}
$priority = array('medium' => null, 'large' => null, 'thumbnail' => null, 'medium_large' => null);
$new_sizes = array_filter(array_merge($priority, $new_sizes));
$editor = wp_get_image_editor($file);
if (is_wp_error($editor)) {
return $image_meta;
}
if (!empty($image_meta['image_meta'])) {
$rotated = $editor->maybe_exif_rotate();
if (is_wp_error($rotated)) {
}
}
if (method_exists($editor, 'make_subsize')) {
foreach ($new_sizes as $new_size_name => $new_size_data) {
$new_size_meta = $editor->make_subsize($new_size_data);
if (is_wp_error($new_size_meta)) {
} else {
$image_meta['sizes'][$new_size_name] = $new_size_meta;
wp_update_attachment_metadata($attachment_id, $image_meta);
}
}
} else {
$created_sizes = $editor->multi_resize($new_sizes);
if (!empty($created_sizes)) {
$image_meta['sizes'] = array_merge($image_meta['sizes'], $created_sizes);
wp_update_attachment_metadata($attachment_id, $image_meta);
}
}
return $image_meta;
}
function wp_generate_attachment_metadata($attachment_id, $file)
{
$attachment = get_post($attachment_id);
$metadata = array();
$support = false;
$mime_type = get_post_mime_type($attachment);
if (preg_match('!^image/!', $mime_type) && file_is_displayable_image($file)) {
$metadata = wp_create_image_subsizes($file, $attachment_id);
} elseif (wp_attachment_is('video', $attachment)) {
$metadata = wp_read_video_metadata($file);
$support = current_theme_supports('post-thumbnails', 'attachment:video') || post_type_supports('attachment:video', 'thumbnail');
} elseif (wp_attachment_is('audio', $attachment)) {
$metadata = wp_read_audio_metadata($file);
$support = current_theme_supports('post-thumbnails', 'attachment:audio') || post_type_supports('attachment:audio', 'thumbnail');
}
if ($support && !empty($metadata['image']['data'])) {
$hash = md5($metadata['image']['data']);
$posts = get_posts(array('fields' => 'ids', 'post_type' => 'attachment', 'post_mime_type' => $metadata['image']['mime'], 'post_status' => 'inherit', 'posts_per_page' => 1, 'meta_key' => '_cover_hash', 'meta_value' => $hash));
$exists = reset($posts);
if (!empty($exists)) {
update_post_meta($attachment_id, '_thumbnail_id', $exists);
} else {
$ext = '.jpg';
switch ($metadata['image']['mime']) {
case 'image/gif':
$ext = '.gif';
break;
case 'image/png':
$ext = '.png';
break;
}
$basename = str_replace('.', '-', wp_basename($file)) . '-image' . $ext;
$uploaded = wp_upload_bits($basename, '', $metadata['image']['data']);
if (false === $uploaded['error']) {
$image_attachment = array('post_mime_type' => $metadata['image']['mime'], 'post_type' => 'attachment', 'post_content' => '');
$image_attachment = apply_filters('attachment_thumbnail_args', $image_attachment, $metadata, $uploaded);
$sub_attachment_id = wp_insert_attachment($image_attachment, $uploaded['file']);
add_post_meta($sub_attachment_id, '_cover_hash', $hash);
$attach_data = wp_generate_attachment_metadata($sub_attachment_id, $uploaded['file']);
wp_update_attachment_metadata($sub_attachment_id, $attach_data);
update_post_meta($attachment_id, '_thumbnail_id', $sub_attachment_id);
}
}
} elseif ('application/pdf' === $mime_type) {
$fallback_sizes = array('thumbnail', 'medium', 'large');
$fallback_sizes = apply_filters('fallback_intermediate_image_sizes', $fallback_sizes, $metadata);
$registered_sizes = wp_get_registered_image_subsizes();
$merged_sizes = array_intersect_key($registered_sizes, array_flip($fallback_sizes));
if (isset($merged_sizes['thumbnail']) && is_array($merged_sizes['thumbnail'])) {
$merged_sizes['thumbnail']['crop'] = false;
}
if (!empty($merged_sizes)) {
$editor = wp_get_image_editor($file);
if (!is_wp_error($editor)) {
$dirname = dirname($file) . '/';
$ext = '.' . pathinfo($file, PATHINFO_EXTENSION);
$preview_file = $dirname . wp_unique_filename($dirname, wp_basename($file, $ext) . '-pdf.jpg');
$uploaded = $editor->save($preview_file, 'image/jpeg');
unset($editor);
if (!is_wp_error($uploaded)) {
$image_file = $uploaded['path'];
unset($uploaded['path']);
$metadata['sizes'] = array('full' => $uploaded);
wp_update_attachment_metadata($attachment_id, $metadata);
$metadata = _wp_make_subsizes($merged_sizes, $image_file, $metadata, $attachment_id);
}
}
}
}
if ($metadata) {
unset($metadata['image']['data']);
}
return apply_filters('wp_generate_attachment_metadata', $metadata, $attachment_id, 'create');
}
function wp_exif_frac2dec($str)
{
if (false === strpos($str, '/')) {
return $str;
}
list($numerator, $denominator) = explode('/', $str);
if (!empty($denominator)) {
return $numerator / $denominator;
}
return $str;
}
function wp_exif_date2ts($str)
{
list($date, $time) = explode(' ', trim($str));
list($y, $m, $d) = explode(':', $date);
return strtotime("{$y}-{$m}-{$d} {$time}");
}
function wp_read_image_metadata($file)
{
if (!file_exists($file)) {
return false;
}
list(, , $image_type) = wp_getimagesize($file);
$meta = array('aperture' => 0, 'credit' => '', 'camera' => '', 'caption' => '', 'created_timestamp' => 0, 'copyright' => '', 'focal_length' => 0, 'iso' => 0, 'shutter_speed' => 0, 'title' => '', 'orientation' => 0, 'keywords' => array());
$iptc = array();
if (is_callable('iptcparse')) {
wp_getimagesize($file, $info);
if (!empty($info['APP13'])) {
if (!defined('WP_RUN_CORE_TESTS') && defined('WP_DEBUG') && WP_DEBUG) {
$iptc = iptcparse($info['APP13']);
} else {
$iptc = @iptcparse($info['APP13']);
}
if (!empty($iptc['2#105'][0])) {
$meta['title'] = trim($iptc['2#105'][0]);
} elseif (!empty($iptc['2#005'][0])) {
$meta['title'] = trim($iptc['2#005'][0]);
}
if (!empty($iptc['2#120'][0])) {
$caption = trim($iptc['2#120'][0]);
mbstring_binary_safe_encoding();
$caption_length = strlen($caption);
reset_mbstring_encoding();
if (empty($meta['title']) && $caption_length < 80) {
$meta['title'] = $caption;
}
$meta['caption'] = $caption;
}
if (!empty($iptc['2#110'][0])) {
$meta['credit'] = trim($iptc['2#110'][0]);
} elseif (!empty($iptc['2#080'][0])) {
$meta['credit'] = trim($iptc['2#080'][0]);
}
if (!empty($iptc['2#055'][0]) && !empty($iptc['2#060'][0])) {
$meta['created_timestamp'] = strtotime($iptc['2#055'][0] . ' ' . $iptc['2#060'][0]);
}
if (!empty($iptc['2#116'][0])) {
$meta['copyright'] = trim($iptc['2#116'][0]);
}
if (!empty($iptc['2#025'][0])) {
$meta['keywords'] = array_values($iptc['2#025']);
}
}
}
$exif = array();
$exif_image_types = apply_filters('wp_read_image_metadata_types', array(IMAGETYPE_JPEG, IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM));
if (is_callable('exif_read_data') && in_array($image_type, $exif_image_types, true)) {
if (!defined('WP_RUN_CORE_TESTS') && defined('WP_DEBUG') && WP_DEBUG) {
$exif = exif_read_data($file);
} else {
$exif = @exif_read_data($file);
}
if (!empty($exif['ImageDescription'])) {
mbstring_binary_safe_encoding();
$description_length = strlen($exif['ImageDescription']);
reset_mbstring_encoding();
if (empty($meta['title']) && $description_length < 80) {
$meta['title'] = trim($exif['ImageDescription']);
}
if (empty($meta['caption']) && !empty($exif['COMPUTED']['UserComment'])) {
$meta['caption'] = trim($exif['COMPUTED']['UserComment']);
}
if (empty($meta['caption'])) {
$meta['caption'] = trim($exif['ImageDescription']);
}
} elseif (empty($meta['caption']) && !empty($exif['Comments'])) {
$meta['caption'] = trim($exif['Comments']);
}
if (empty($meta['credit'])) {
if (!empty($exif['Artist'])) {
$meta['credit'] = trim($exif['Artist']);
} elseif (!empty($exif['Author'])) {
$meta['credit'] = trim($exif['Author']);
}
}
if (empty($meta['copyright']) && !empty($exif['Copyright'])) {
$meta['copyright'] = trim($exif['Copyright']);
}
if (!empty($exif['FNumber'])) {
$meta['aperture'] = round(wp_exif_frac2dec($exif['FNumber']), 2);
}
if (!empty($exif['Model'])) {
$meta['camera'] = trim($exif['Model']);
}
if (empty($meta['created_timestamp']) && !empty($exif['DateTimeDigitized'])) {
$meta['created_timestamp'] = wp_exif_date2ts($exif['DateTimeDigitized']);
}
if (!empty($exif['FocalLength'])) {
$meta['focal_length'] = (string) wp_exif_frac2dec($exif['FocalLength']);
}
if (!empty($exif['ISOSpeedRatings'])) {
$meta['iso'] = is_array($exif['ISOSpeedRatings']) ? reset($exif['ISOSpeedRatings']) : $exif['ISOSpeedRatings'];
$meta['iso'] = trim($meta['iso']);
}
if (!empty($exif['ExposureTime'])) {
$meta['shutter_speed'] = (string) wp_exif_frac2dec($exif['ExposureTime']);
}
if (!empty($exif['Orientation'])) {
$meta['orientation'] = $exif['Orientation'];
}
}
foreach (array('title', 'caption', 'credit', 'copyright', 'camera', 'iso') as $key) {
if ($meta[$key] && !seems_utf8($meta[$key])) {
$meta[$key] = utf8_encode($meta[$key]);
}
}
foreach ($meta['keywords'] as $key => $keyword) {
if (!seems_utf8($keyword)) {
$meta['keywords'][$key] = utf8_encode($keyword);
}
}
$meta = wp_kses_post_deep($meta);
return apply_filters('wp_read_image_metadata', $meta, $file, $image_type, $iptc, $exif);
}
function file_is_valid_image($path)
{
$size = wp_getimagesize($path);
return !empty($size);
}
function file_is_displayable_image($path)
{
$displayable_image_types = array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_BMP, IMAGETYPE_ICO);
$info = wp_getimagesize($path);
if (empty($info)) {
$result = false;
} elseif (!in_array($info[2], $displayable_image_types, true)) {
$result = false;
} else {
$result = true;
}
return apply_filters('file_is_displayable_image', $result, $path);
}
function load_image_to_edit($attachment_id, $mime_type, $size = 'full')
{
$filepath = _load_image_to_edit_path($attachment_id, $size);
if (empty($filepath)) {
return false;
}
switch ($mime_type) {
case 'image/jpeg':
$image = imagecreatefromjpeg($filepath);
break;
case 'image/png':
$image = imagecreatefrompng($filepath);
break;
case 'image/gif':
$image = imagecreatefromgif($filepath);
break;
default:
$image = false;
break;
}
if (is_gd_image($image)) {
$image = apply_filters('load_image_to_edit', $image, $attachment_id, $size);
if (function_exists('imagealphablending') && function_exists('imagesavealpha')) {
imagealphablending($image, false);
imagesavealpha($image, true);
}
}
return $image;
}
function _load_image_to_edit_path($attachment_id, $size = 'full')
{
$filepath = get_attached_file($attachment_id);
if ($filepath && file_exists($filepath)) {
if ('full' !== $size) {
$data = image_get_intermediate_size($attachment_id, $size);
if ($data) {
$filepath = path_join(dirname($filepath), $data['file']);
$filepath = apply_filters('load_image_to_edit_filesystempath', $filepath, $attachment_id, $size);
}
}
} elseif (function_exists('fopen') && ini_get('allow_url_fopen')) {
$filepath = apply_filters('load_image_to_edit_attachmenturl', wp_get_attachment_url($attachment_id), $attachment_id, $size);
}
return apply_filters('load_image_to_edit_path', $filepath, $attachment_id, $size);
}
function _copy_image_file($attachment_id)
{
$dst_file = get_attached_file($attachment_id);
$src_file = $dst_file;
if (!file_exists($src_file)) {
$src_file = _load_image_to_edit_path($attachment_id);
}
if ($src_file) {
$dst_file = str_replace(wp_basename($dst_file), 'copy-' . wp_basename($dst_file), $dst_file);
$dst_file = dirname($dst_file) . '/' . wp_unique_filename(dirname($dst_file), wp_basename($dst_file));
wp_mkdir_p(dirname($dst_file));
if (!copy($src_file, $dst_file)) {
$dst_file = false;
}
} else {
$dst_file = false;
}
return $dst_file;
}