/**
* Update attachment file path based on attachment ID.
*
* Used to update the file path of the attachment, which uses post meta name
* '_nxt_attached_file' to store the path of the attachment.
*
* @since 2.1.0
* @uses apply_filters() Calls 'update_attached_file' on file path and attachment ID.
*
* @param int $attachment_id Attachment ID
* @param string $file File path for the attachment
* @return bool False on failure, true on success.
*/
function update_attached_file($attachment_id, $file)
{
if (!get_post($attachment_id)) {
return false;
}
$file = apply_filters('update_attached_file', $file, $attachment_id);
$file = _nxt_relative_upload_path($file);
return update_post_meta($attachment_id, '_nxt_attached_file', $file);
}
/**
* Generate post thumbnail attachment meta data.
*
* @since 2.1.0
*
* @param int $attachment_id Attachment Id to process.
* @param string $file Filepath of the Attached image.
* @return mixed Metadata for attachment.
*/
function nxt_generate_attachment_metadata($attachment_id, $file)
{
$attachment = get_post($attachment_id);
$metadata = array();
if (preg_match('!^image/!', get_post_mime_type($attachment)) && file_is_displayable_image($file)) {
$imagesize = getimagesize($file);
$metadata['width'] = $imagesize[0];
$metadata['height'] = $imagesize[1];
list($uwidth, $uheight) = nxt_constrain_dimensions($metadata['width'], $metadata['height'], 128, 96);
$metadata['hwstring_small'] = "height='{$uheight}' width='{$uwidth}'";
// Make the file path relative to the upload dir
$metadata['file'] = _nxt_relative_upload_path($file);
// make thumbnails and other intermediate sizes
global $_nxt_additional_image_sizes;
foreach (get_intermediate_image_sizes() as $s) {
$sizes[$s] = array('width' => '', 'height' => '', 'crop' => FALSE);
if (isset($_nxt_additional_image_sizes[$s]['width'])) {
$sizes[$s]['width'] = intval($_nxt_additional_image_sizes[$s]['width']);
} else {
$sizes[$s]['width'] = get_option("{$s}_size_w");
}
// For default sizes set in options
if (isset($_nxt_additional_image_sizes[$s]['height'])) {
$sizes[$s]['height'] = intval($_nxt_additional_image_sizes[$s]['height']);
} else {
$sizes[$s]['height'] = get_option("{$s}_size_h");
}
// For default sizes set in options
if (isset($_nxt_additional_image_sizes[$s]['crop'])) {
$sizes[$s]['crop'] = intval($_nxt_additional_image_sizes[$s]['crop']);
} else {
$sizes[$s]['crop'] = get_option("{$s}_crop");
}
// For default sizes set in options
}
$sizes = apply_filters('intermediate_image_sizes_advanced', $sizes);
foreach ($sizes as $size => $size_data) {
$resized = image_make_intermediate_size($file, $size_data['width'], $size_data['height'], $size_data['crop']);
if ($resized) {
$metadata['sizes'][$size] = $resized;
}
}
// fetch additional metadata from exif/iptc
$image_meta = nxt_read_image_metadata($file);
if ($image_meta) {
$metadata['image_meta'] = $image_meta;
}
}
return apply_filters('nxt_generate_attachment_metadata', $metadata, $attachment_id);
}
function nxt_save_image($post_id)
{
$return = new stdClass();
$success = $delete = $scaled = $nocrop = false;
$post = get_post($post_id);
@ini_set('memory_limit', apply_filters('admin_memory_limit', nxt_MAX_MEMORY_LIMIT));
$img = load_image_to_edit($post_id, $post->post_mime_type);
if (!is_resource($img)) {
$return->error = esc_js(__('Unable to create new image.'));
return $return;
}
$fwidth = !empty($_REQUEST['fwidth']) ? intval($_REQUEST['fwidth']) : 0;
$fheight = !empty($_REQUEST['fheight']) ? intval($_REQUEST['fheight']) : 0;
$target = !empty($_REQUEST['target']) ? preg_replace('/[^a-z0-9_-]+/i', '', $_REQUEST['target']) : '';
$scale = !empty($_REQUEST['do']) && 'scale' == $_REQUEST['do'];
if ($scale && $fwidth > 0 && $fheight > 0) {
$sX = imagesx($img);
$sY = imagesy($img);
// check if it has roughly the same w / h ratio
$diff = round($sX / $sY, 2) - round($fwidth / $fheight, 2);
if (-0.1 < $diff && $diff < 0.1) {
// scale the full size image
$dst = nxt_imagecreatetruecolor($fwidth, $fheight);
if (imagecopyresampled($dst, $img, 0, 0, 0, 0, $fwidth, $fheight, $sX, $sY)) {
imagedestroy($img);
$img = $dst;
$scaled = true;
}
}
if (!$scaled) {
$return->error = esc_js(__('Error while saving the scaled image. Please reload the page and try again.'));
return $return;
}
} elseif (!empty($_REQUEST['history'])) {
$changes = json_decode(stripslashes($_REQUEST['history']));
if ($changes) {
$img = image_edit_apply_changes($img, $changes);
}
} else {
$return->error = esc_js(__('Nothing to save, the image has not changed.'));
return $return;
}
$meta = nxt_get_attachment_metadata($post_id);
$backup_sizes = get_post_meta($post->ID, '_nxt_attachment_backup_sizes', true);
if (!is_array($meta)) {
$return->error = esc_js(__('Image data does not exist. Please re-upload the image.'));
return $return;
}
if (!is_array($backup_sizes)) {
$backup_sizes = array();
}
// generate new filename
$path = get_attached_file($post_id);
$path_parts = pathinfo($path);
$filename = $path_parts['filename'];
$suffix = time() . rand(100, 999);
if (defined('IMAGE_EDIT_OVERWRITE') && IMAGE_EDIT_OVERWRITE && isset($backup_sizes['full-orig']) && $backup_sizes['full-orig']['file'] != $path_parts['basename']) {
if ('thumbnail' == $target) {
$new_path = "{$path_parts['dirname']}/{$filename}-temp.{$path_parts['extension']}";
} else {
$new_path = $path;
}
} else {
while (true) {
$filename = preg_replace('/-e([0-9]+)$/', '', $filename);
$filename .= "-e{$suffix}";
$new_filename = "{$filename}.{$path_parts['extension']}";
$new_path = "{$path_parts['dirname']}/{$new_filename}";
if (file_exists($new_path)) {
$suffix++;
} else {
break;
}
}
}
// save the full-size file, also needed to create sub-sizes
if (!nxt_save_image_file($new_path, $img, $post->post_mime_type, $post_id)) {
$return->error = esc_js(__('Unable to save the image.'));
return $return;
}
if ('nothumb' == $target || 'all' == $target || 'full' == $target || $scaled) {
$tag = false;
if (isset($backup_sizes['full-orig'])) {
if ((!defined('IMAGE_EDIT_OVERWRITE') || !IMAGE_EDIT_OVERWRITE) && $backup_sizes['full-orig']['file'] != $path_parts['basename']) {
$tag = "full-{$suffix}";
}
} else {
$tag = 'full-orig';
}
if ($tag) {
$backup_sizes[$tag] = array('width' => $meta['width'], 'height' => $meta['height'], 'file' => $path_parts['basename']);
}
$success = update_attached_file($post_id, $new_path);
$meta['file'] = _nxt_relative_upload_path($new_path);
$meta['width'] = imagesx($img);
$meta['height'] = imagesy($img);
list($uwidth, $uheight) = nxt_constrain_dimensions($meta['width'], $meta['height'], 128, 96);
$meta['hwstring_small'] = "height='{$uheight}' width='{$uwidth}'";
if ($success && ('nothumb' == $target || 'all' == $target)) {
$sizes = get_intermediate_image_sizes();
if ('nothumb' == $target) {
$sizes = array_diff($sizes, array('thumbnail'));
}
}
$return->fw = $meta['width'];
$return->fh = $meta['height'];
} elseif ('thumbnail' == $target) {
$sizes = array('thumbnail');
$success = $delete = $nocrop = true;
}
if (isset($sizes)) {
foreach ($sizes as $size) {
$tag = false;
if (isset($meta['sizes'][$size])) {
if (isset($backup_sizes["{$size}-orig"])) {
if ((!defined('IMAGE_EDIT_OVERWRITE') || !IMAGE_EDIT_OVERWRITE) && $backup_sizes["{$size}-orig"]['file'] != $meta['sizes'][$size]['file']) {
$tag = "{$size}-{$suffix}";
}
} else {
$tag = "{$size}-orig";
}
if ($tag) {
$backup_sizes[$tag] = $meta['sizes'][$size];
}
}
$crop = $nocrop ? false : get_option("{$size}_crop");
$resized = image_make_intermediate_size($new_path, get_option("{$size}_size_w"), get_option("{$size}_size_h"), $crop);
if ($resized) {
$meta['sizes'][$size] = $resized;
} else {
unset($meta['sizes'][$size]);
}
}
}
if ($success) {
nxt_update_attachment_metadata($post_id, $meta);
update_post_meta($post_id, '_nxt_attachment_backup_sizes', $backup_sizes);
if ($target == 'thumbnail' || $target == 'all' || $target == 'full') {
$file_url = nxt_get_attachment_url($post_id);
if ($thumb = $meta['sizes']['thumbnail']) {
$return->thumbnail = path_join(dirname($file_url), $thumb['file']);
} else {
$return->thumbnail = "{$file_url}?w=128&h=128";
}
}
} else {
$delete = true;
}
if ($delete) {
$delpath = apply_filters('nxt_delete_file', $new_path);
@unlink($delpath);
}
imagedestroy($img);
$return->msg = esc_js(__('Image saved'));
return $return;
}
