/**
* Handler after a file has been uploaded. If the file is an image, check the size
* to see if it is too big and, if so, resize and overwrite the original
* @param Array $params
*/
function imsanity_handle_upload($params)
{
/* debug logging... */
// file_put_contents ( "debug.txt" , print_r($params,1) . "\n" );
$option_convert_bmp = imsanity_get_option('imsanity_bmp_to_jpg', IMSANITY_DEFAULT_BMP_TO_JPG);
if ($params['type'] == 'image/bmp' && $option_convert_bmp) {
$params = imsanity_bmp_to_jpg($params);
}
// make sure this is a type of image that we want to convert and that it exists
// @TODO when uploads occur via RPC the image may not exist at this location
$oldPath = $params['file'];
if (!is_wp_error($params) && file_exists($oldPath) && in_array($params['type'], array('image/png', 'image/gif', 'image/jpeg'))) {
// figure out where the upload is coming from
$source = imsanity_get_source();
list($maxW, $maxH) = imsanity_get_max_width_height($source);
list($oldW, $oldH) = getimagesize($oldPath);
/* HACK: if getimagesize returns an incorrect value (sometimes due to bad EXIF data..?)
$img = imagecreatefromjpeg ($oldPath);
$oldW = imagesx ($img);
$oldH = imagesy ($img);
imagedestroy ($img);
//*/
/* HACK: an animated gif may have different frame sizes. to get the "screen" size
$data = ''; // TODO: convert file to binary
$header = unpack('@6/vwidth/vheight', $data );
$oldW = $header['width'];
$oldH = $header['width'];
//*/
if ($oldW > $maxW && $maxW > 0 || $oldH > $maxH && $maxH > 0) {
$quality = imsanity_get_option('imsanity_quality', IMSANITY_DEFAULT_QUALITY);
list($newW, $newH) = wp_constrain_dimensions($oldW, $oldH, $maxW, $maxH);
// this is wordpress prior to 3.5 (image_resize deprecated as of 3.5)
$resizeResult = imsanity_image_resize($oldPath, $newW, $newH, false, null, null, $quality);
/* uncomment to debug error handling code: */
// $resizeResult = new WP_Error('invalid_image', __(print_r($_REQUEST)), $oldPath);
// regardless of success/fail we're going to remove the original upload
unlink($oldPath);
if (!is_wp_error($resizeResult)) {
$newPath = $resizeResult;
// remove original and replace with re-sized image
rename($newPath, $oldPath);
} else {
// resize didn't work, likely because the image processing libraries are missing
$params = wp_handle_upload_error($oldPath, sprintf(__("Oh Snap! Imsanity was unable to resize this image " . "for the following reason: '%s'\n\t\t\t\t\t. If you continue to see this error message, you may need to either install missing server" . " components or disable the Imsanity plugin." . " If you think you have discovered a bug, please report it on the Imsanity support forum.", 'imsanity'), $resizeResult->get_error_message()));
}
}
}
return $params;
}
/**
* Handler after a file has been uploaded. If the file is an image, check the size
* to see if it is too big and, if so, resize and overwrite the original
* @param Array $params
*/
function imsanity_handle_upload($params)
{
/* debug logging... */
// file_put_contents ( "debug.txt" , print_r($params,1) . "\n" );
// if "noresize" is included in the filename then we will bypass imsanity scaling
if (strpos($params['file'], 'noresize') !== false) {
return $params;
}
// if preferences specify so then we can convert an original bmp or png file into jpg
if ($params['type'] == 'image/bmp' && imsanity_get_option('imsanity_bmp_to_jpg', IMSANITY_DEFAULT_BMP_TO_JPG)) {
$params = imsanity_convert_to_jpg('bmp', $params);
}
if ($params['type'] == 'image/png' && imsanity_get_option('imsanity_png_to_jpg', IMSANITY_DEFAULT_PNG_TO_JPG)) {
$params = imsanity_convert_to_jpg('png', $params);
}
// make sure this is a type of image that we want to convert and that it exists
// @TODO when uploads occur via RPC the image may not exist at this location
$oldPath = $params['file'];
// @HACK not currently working
// @see https://wordpress.org/support/topic/images-dont-resize-when-uploaded-via-mobile-device
// if (!file_exists($oldPath)) {
// $ud = wp_upload_dir();
// $oldPath = $ud['path'] . DIRECTORY_SEPARATOR . $oldPath;
// }
if (!is_wp_error($params) && file_exists($oldPath) && in_array($params['type'], array('image/png', 'image/gif', 'image/jpeg'))) {
// figure out where the upload is coming from
$source = imsanity_get_source();
$quality = imsanity_get_option('imsanity_quality', IMSANITY_DEFAULT_QUALITY);
list($maxW, $maxH) = imsanity_get_max_width_height($source);
list($oldW, $oldH) = getimagesize($oldPath);
$oldFilesize = filesize($oldPath);
// estimated image quality algorithm from http://stackoverflow.com/a/19255481
$oldQuality = 101 - $oldW * $oldH * 3 / $oldFilesize;
/* HACK: if getimagesize returns an incorrect value (sometimes due to bad EXIF data..?)
$img = imagecreatefromjpeg ($oldPath);
$oldW = imagesx ($img);
$oldH = imagesy ($img);
imagedestroy ($img);
//*/
/* HACK: an animated gif may have different frame sizes. to get the "screen" size
$data = ''; // TODO: convert file to binary
$header = unpack('@6/vwidth/vheight', $data );
$oldW = $header['width'];
$oldH = $header['width'];
//*/
if ($oldW > $maxW && $maxW > 0 || $oldH > $maxH && $maxH > 0 || $params['type'] == 'image/jpeg' && imsanity_get_option('imsanity_enforce_quality', IMSANITY_DEFAULT_ENFORCE_QUALITY) && $oldQuality > $quality) {
list($newW, $newH) = wp_constrain_dimensions($oldW, $oldH, $maxW, $maxH);
// this is wordpress prior to 3.5 (image_resize deprecated as of 3.5)
$resizeResult = imsanity_image_resize($oldPath, $newW, $newH, false, null, null, $quality);
/* uncomment to debug error handling code: */
// $resizeResult = new WP_Error('invalid_image', __(print_r($_REQUEST)), $oldPath);
if (!is_wp_error($resizeResult)) {
$newPath = $resizeResult;
if (filesize($newPath) < filesize($oldPath)) {
// we saved some file space. remove original and replace with resized image
unlink($oldPath);
rename($newPath, $oldPath);
} else {
// theresized image is actually bigger in filesize (most likely due to jpg quality).
// keep the old one and just get rid of the resized image
unlink($newPath);
}
} else {
// resize didn't work, likely because the image processing libraries are missing
// remove the old image so we don't leave orphan files hanging around
unlink($oldPath);
$params = wp_handle_upload_error($oldPath, sprintf(__("Oh Snap! Imsanity was unable to resize this image " . "for the following reason: '%s'\n\t\t\t\t\t. If you continue to see this error message, you may need to either install missing server" . " components or disable the Imsanity plugin." . " If you think you have discovered a bug, please report it on the Imsanity support forum.", 'imsanity'), $resizeResult->get_error_message()));
}
}
}
return $params;
}
