function ewww_image_optimizer_path_check($j = true, $o = true, $g = true, $p = true, $q = true)
{
global $ewww_debug;
$ewww_debug .= "<b>ewww_image_optimizer_path_check()</b><br>";
$jpegtran = false;
$optipng = false;
$gifsicle = false;
$pngout = false;
$pngquant = false;
// for Windows, everything must be in the wp-content/ewww folder, so that is all we check
if ('WINNT' == PHP_OS) {
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran.exe') && $j) {
$jpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran.exe';
$ewww_debug .= "found {$jpt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $jpt . '"', 'j') && ewww_image_optimizer_md5check($jpt)) {
$jpegtran = '"' . $jpt . '"';
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng.exe') && $o) {
$opt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng.exe';
$ewww_debug .= "found {$opt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $opt . '"', 'o') && ewww_image_optimizer_md5check($opt)) {
$optipng = '"' . $opt . '"';
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle.exe') && $g) {
$gpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle.exe';
$ewww_debug .= "found {$gpt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $gpt . '"', 'g') && ewww_image_optimizer_md5check($gpt)) {
$gifsicle = '"' . $gpt . '"';
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngout.exe') && $p) {
$ppt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngout.exe';
$ewww_debug .= "found {$ppt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $ppt . '"', 'p') && ewww_image_optimizer_md5check($ppt)) {
$pngout = '"' . $ppt . '"';
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant.exe') && $q) {
$qpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant.exe';
$ewww_debug .= "found {$qpt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $qpt . '"', 'q') && ewww_image_optimizer_md5check($qpt)) {
$pngquant = '"' . $qpt . '"';
}
}
} else {
// check to see if the user has disabled using bundled binaries
$use_system = ewww_image_optimizer_get_option('ewww_image_optimizer_skip_bundle');
if ($j) {
// first check for the jpegtran binary in the ewww tool folder
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran') && !$use_system) {
$jpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran';
$ewww_debug .= "found {$jpt}, testing...<br>";
if (ewww_image_optimizer_md5check($jpt) && ewww_image_optimizer_mimetype($jpt, 'b')) {
$jpt = ewww_image_optimizer_escapeshellcmd($jpt);
if (ewww_image_optimizer_tool_found($jpt, 'j')) {
$jpegtran = $jpt;
}
}
}
// if the standard jpegtran binary didn't work, see if the user custom compiled one and check that
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-custom') && !$jpegtran && !$use_system) {
$jpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-custom';
$ewww_debug .= "found {$jpt}, testing...<br>";
if (filesize($jpt) > 15000 && ewww_image_optimizer_mimetype($jpt, 'b')) {
$jpt = ewww_image_optimizer_escapeshellcmd($jpt);
if (ewww_image_optimizer_tool_found($jpt, 'j')) {
$jpegtran = $jpt;
}
}
}
// if we still haven't found a usable binary, try a system-installed version
if (!$jpegtran) {
$jpegtran = ewww_image_optimizer_find_binary('jpegtran', 'j');
}
}
if ($o) {
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng') && !$use_system) {
$opt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng';
$ewww_debug .= "found {$opt}, testing...<br>";
if (ewww_image_optimizer_md5check($opt) && ewww_image_optimizer_mimetype($opt, 'b')) {
$opt = ewww_image_optimizer_escapeshellcmd($opt);
if (ewww_image_optimizer_tool_found($opt, 'o')) {
$optipng = $opt;
}
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng-custom') && !$optipng && !$use_system) {
$opt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng-custom';
$ewww_debug .= "found {$opt}, testing...<br>";
if (filesize($opt) > 15000 && ewww_image_optimizer_mimetype($opt, 'b')) {
$opt = ewww_image_optimizer_escapeshellcmd($opt);
if (ewww_image_optimizer_tool_found($opt, 'o')) {
$optipng = $opt;
}
}
}
if (!$optipng) {
$optipng = ewww_image_optimizer_find_binary('optipng', 'o');
}
}
if ($g) {
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle') && !$use_system) {
$gpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle';
$ewww_debug .= "found {$gpt}, testing...<br>";
if (ewww_image_optimizer_md5check($gpt) && ewww_image_optimizer_mimetype($gpt, 'b')) {
$gpt = ewww_image_optimizer_escapeshellcmd($gpt);
if (ewww_image_optimizer_tool_found($gpt, 'g')) {
$gifsicle = $gpt;
}
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle-custom') && !$gifsicle && !$use_system) {
$gpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle-custom';
$ewww_debug .= "found {$gpt}, testing...<br>";
if (filesize($gpt) > 15000 && ewww_image_optimizer_mimetype($gpt, 'b')) {
$gpt = ewww_image_optimizer_escapeshellcmd($gpt);
if (ewww_image_optimizer_tool_found($gpt, 'g')) {
$gifsicle = $gpt;
}
}
}
if (!$gifsicle) {
$gifsicle = ewww_image_optimizer_find_binary('gifsicle', 'g');
}
}
if ($p) {
// pngout is special and has a dynamic and static binary to check
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngout-static') && !$use_system) {
$ppt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngout-static';
$ewww_debug .= "found {$ppt}, testing...<br>";
if (ewww_image_optimizer_md5check($ppt) && ewww_image_optimizer_mimetype($ppt, 'b')) {
$ppt = ewww_image_optimizer_escapeshellcmd($ppt);
if (ewww_image_optimizer_tool_found($ppt, 'p')) {
$pngout = $ppt;
}
}
}
if (!$pngout) {
$pngout = ewww_image_optimizer_find_binary('pngout', 'p');
}
if (!$pngout) {
$pngout = ewww_image_optimizer_find_binary('pngout-static', 'p');
}
}
if ($q) {
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant') && !$use_system) {
$qpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant';
$ewww_debug .= "found {$qpt}, testing...<br>";
if (ewww_image_optimizer_md5check($qpt) && ewww_image_optimizer_mimetype($qpt, 'b')) {
$qpt = ewww_image_optimizer_escapeshellcmd($qpt);
if (ewww_image_optimizer_tool_found($qpt, 'q')) {
$pngquant = $qpt;
}
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant-custom') && !$pngquant && !$use_system) {
$qpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'pngquant-custom';
$ewww_debug .= "found {$qpt}, testing...<br>";
if (filesize($qpt) > 15000 && ewww_image_optimizer_mimetype($qpt, 'b')) {
$qpt = ewww_image_optimizer_escapeshellcmd($qpt);
if (ewww_image_optimizer_tool_found($qpt, 'q')) {
$pngquant = $qpt;
}
}
}
if (!$pngquant) {
$pngquant = ewww_image_optimizer_find_binary('pngquant', 'q');
}
}
}
if ($jpegtran) {
$ewww_debug .= "using: {$jpegtran}<br>";
}
if ($optipng) {
$ewww_debug .= "using: {$optipng}<br>";
}
if ($gifsicle) {
$ewww_debug .= "using: {$gifsicle}<br>";
}
if ($pngout) {
$ewww_debug .= "using: {$pngout}<br>";
}
if ($pngquant) {
$ewww_debug .= "using: {$pngquant}<br>";
}
return array('JPEGTRAN' => $jpegtran, 'OPTIPNG' => $optipng, 'GIFSICLE' => $gifsicle, 'PNGOUT' => $pngout, 'PNGQUANT' => $pngquant);
}
function ewww_image_optimizer_find_nix_binary($binary, $switch)
{
ewwwio_debug_message('<b>' . __FUNCTION__ . '()</b>');
if (empty($binary) || empty($switch)) {
return '';
}
$use_system = ewww_image_optimizer_get_option('ewww_image_optimizer_skip_bundle');
// first check for the binary in the ewww tool folder
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary) && !$use_system) {
$binary_path = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary;
ewwwio_debug_message("found {$binary_path}, testing...");
if (ewww_image_optimizer_md5check($binary_path) && ewww_image_optimizer_mimetype($binary_path, 'b')) {
$binary_path = ewww_image_optimizer_escapeshellcmd($binary_path);
if (ewww_image_optimizer_tool_found($binary_path, $switch)) {
return $binary_path;
}
}
}
// if the standard binary didn't work, see if the user custom compiled one and check that
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary . '-custom') && !$use_system) {
$binary_path = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary . '-custom';
ewwwio_debug_message("found {$binary_path}, testing...");
if (filesize($binary_path) > 15000 && ewww_image_optimizer_mimetype($binary_path, 'b')) {
$binary_path = ewww_image_optimizer_escapeshellcmd($binary_path);
if (ewww_image_optimizer_tool_found($binary_path, $switch)) {
return $binary_path;
}
}
}
// see if the alternative binary works
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary . '-alt') && !$use_system) {
$binary_path = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . $binary . '-alt';
ewwwio_debug_message("found {$binary_path}, testing...");
if (filesize($binary_path) > 15000 && ewww_image_optimizer_mimetype($binary_path, 'b')) {
$binary_path = ewww_image_optimizer_escapeshellcmd($binary_path);
if (ewww_image_optimizer_tool_found($binary_path, $switch)) {
return $binary_path;
}
}
}
// if we still haven't found a usable binary, try a system-installed version
if (ewww_image_optimizer_tool_found($binary, $switch)) {
return $binary;
} elseif (ewww_image_optimizer_tool_found('/usr/bin/' . $binary, $switch)) {
return '/usr/bin/' . $binary;
} elseif (ewww_image_optimizer_tool_found('/usr/local/bin/' . $binary, $switch)) {
return '/usr/local/bin/' . $binary;
} elseif (ewww_image_optimizer_tool_found('/usr/gnu/bin/' . $binary, $switch)) {
return '/usr/gnu/bin/' . $binary;
} elseif (ewww_image_optimizer_tool_found('/usr/syno/bin/' . $binary, $switch)) {
// for synology diskstation OS
return '/usr/syno/bin/' . $binary;
} else {
return '';
}
}
