function ewww_image_optimizer_path_check($j = true, $o = true, $g = true, $p = true, $q = true, $w = true)
{
global $ewww_debug;
$ewww_debug .= "<b>ewww_image_optimizer_path_check()</b><br>";
$jpegtran = false;
$optipng = false;
$gifsicle = false;
$pngout = false;
$pngquant = false;
$webp = false;
if (EWWW_IMAGE_OPTIMIZER_NOEXEC) {
return array('JPEGTRAN' => false, 'OPTIPNG' => false, 'GIFSICLE' => false, 'PNGOUT' => false, 'PNGQUANT' => false, 'WEBP' => 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 . '"';
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp.exe') && $w) {
$wpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp.exe';
$ewww_debug .= "found {$wpt}, testing...<br>";
if (ewww_image_optimizer_tool_found('"' . $wpt . '"', 'w') && ewww_image_optimizer_md5check($wpt)) {
$webp = '"' . $wpt . '"';
}
}
} 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 = $jpt;
}
}
}
// see if the alternative binary works
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-alt') && !$jpegtran && !$use_system) {
$jpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-alt';
$ewww_debug .= "found {$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) {
$pngquant = ewww_image_optimizer_find_binary('pngquant', 'q');
}
}
if ($w) {
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp') && !$use_system) {
$wpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp';
$ewww_debug .= "found {$wpt}, testing...<br>";
if (ewww_image_optimizer_md5check($wpt) && ewww_image_optimizer_mimetype($wpt, 'b')) {
$wpt = ewww_image_optimizer_escapeshellcmd($wpt);
if (ewww_image_optimizer_tool_found($wpt, 'w')) {
$webp = $wpt;
}
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp-custom') && !$webp && !$use_system) {
$wpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp-custom';
$ewww_debug .= "found {$wpt}, testing...<br>";
if (filesize($wpt) > 5000 && ewww_image_optimizer_mimetype($wpt, 'b')) {
$wpt = ewww_image_optimizer_escapeshellcmd($wpt);
if (ewww_image_optimizer_tool_found($wpt, 'w')) {
$webp = $wpt;
}
}
}
if (file_exists(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp-alt') && !$webp && !$use_system) {
$wpt = EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'cwebp-alt';
$ewww_debug .= "found {$wpt}, testing...<br>";
if (filesize($wpt) > 5000 && ewww_image_optimizer_mimetype($wpt, 'b')) {
$wpt = ewww_image_optimizer_escapeshellcmd($wpt);
if (ewww_image_optimizer_tool_found($wpt, 'w')) {
$webp = $wpt;
}
}
}
if (!$webp) {
$webp = ewww_image_optimizer_find_binary('cwebp', 'w');
}
}
}
if ($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>";
}
if ($webp) {
$ewww_debug .= "using: {$webp}<br>";
}
ewwwio_memory(__FUNCTION__);
return array('JPEGTRAN' => $jpegtran, 'OPTIPNG' => $optipng, 'GIFSICLE' => $gifsicle, 'PNGOUT' => $pngout, 'PNGQUANT' => $pngquant, 'WEBP' => $webp);
}
function ewww_image_optimizer_install_tools()
{
global $ewww_debug;
$ewww_debug .= "<b>ewww_image_optimizer_install_tools()</b><br>";
$ewww_debug .= "Checking/Installing tools in " . EWWW_IMAGE_OPTIMIZER_TOOL_PATH . "<br>";
$toolfail = false;
if (!is_dir(EWWW_IMAGE_OPTIMIZER_TOOL_PATH)) {
$ewww_debug .= "Folder doesn't exist, creating...<br>";
if (!mkdir(EWWW_IMAGE_OPTIMIZER_TOOL_PATH)) {
echo "<div id='ewww-image-optimizer-warning-tool-install' class='error'><p><strong>" . __('EWWW Image Optimizer could not create the tool folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ": " . htmlentities(EWWW_IMAGE_OPTIMIZER_TOOL_PATH) . ".</strong> " . __('Please adjust permissions or create the folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ".</p></div>";
$ewww_debug .= "Couldn't create folder<br>";
}
} else {
$ewww_perms = substr(sprintf('%o', fileperms(EWWW_IMAGE_OPTIMIZER_TOOL_PATH)), -4);
$ewww_debug .= "wp-content/ewww permissions: {$ewww_perms} <br />";
}
list($jpegtran_src, $optipng_src, $gifsicle_src, $pngquant_src, $jpegtran_dst, $optipng_dst, $gifsicle_dst, $pngquant_dst) = ewww_image_optimizer_install_paths();
if (!file_exists($jpegtran_dst)) {
$ewww_debug .= "jpegtran not found, installing<br>";
if (!copy($jpegtran_src, $jpegtran_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy jpegtran<br>";
}
} else {
if (filesize($jpegtran_dst) != filesize($jpegtran_src)) {
$ewww_debug .= "jpegtran found, different size, attempting to replace<br>";
if (!copy($jpegtran_src, $jpegtran_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy jpegtran<br>";
}
}
}
// install 32-bit jpegtran at jpegtran-custom for some weird 64-bit hosts
$arch_type = php_uname('m');
if (PHP_OS == 'Linux' && $arch_type == 'x86_64') {
$ewww_debug .= "64-bit linux detected while installing tools<br>";
$jpegtran32_src = substr($jpegtran_src, 0, -2);
$jpegtran32_dst = $jpegtran_dst . '-custom';
if (!file_exists($jpegtran32_dst) || ewww_image_optimizer_md5check($jpegtran32_dst) && filesize($jpegtran32_dst) != filesize($jpegtran32_src)) {
$ewww_debug .= "copying {$jpegtran32_src} to {$jpegtran32_dst}<br>";
if (!copy($jpegtran32_src, $jpegtran32_dst)) {
// this isn't a fatal error, besides we'll see it in the debug if needed
$ewww_debug .= "Couldn't copy 32-bit jpegtran to jpegtran-custom<br>";
}
$jpegtran32_perms = substr(sprintf('%o', fileperms($jpegtran32_dst)), -4);
$ewww_debug .= "jpegtran-custom (32-bit) permissions: {$jpegtran32_perms}<br>";
if ($jpegtran32_perms != '0755') {
if (!chmod($jpegtran32_dst, 0755)) {
$ewww_debug .= "couldn't set jpegtran-custom permissions<br>";
}
}
}
}
if (!file_exists($gifsicle_dst)) {
$ewww_debug .= "gifsicle not found, installing<br>";
if (!copy($gifsicle_src, $gifsicle_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy gifsicle<br>";
}
} else {
if (filesize($gifsicle_dst) != filesize($gifsicle_src)) {
$ewww_debug .= "gifsicle found, different size, attempting to replace<br>";
if (!copy($gifsicle_src, $gifsicle_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy gifsicle<br>";
}
}
}
if (!file_exists($optipng_dst)) {
$ewww_debug .= "optipng not found, installing<br>";
if (!copy($optipng_src, $optipng_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy optipng<br>";
}
} else {
if (filesize($optipng_dst) != filesize($optipng_src)) {
$ewww_debug .= "optipng found, different size, attempting to replace<br>";
if (!copy($optipng_src, $optipng_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy optipng<br>";
}
}
}
if (!file_exists($pngquant_dst)) {
$ewww_debug .= "pngquant not found, installing<br>";
if (!copy($pngquant_src, $pngquant_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy pngquant<br>";
}
} else {
if (filesize($pngquant_dst) != filesize($pngquant_src)) {
$ewww_debug .= "pngquant found, different size, attempting to replace<br>";
if (!copy($pngquant_src, $pngquant_dst)) {
$toolfail = true;
$ewww_debug .= "Couldn't copy pngquant<br>";
}
}
}
if (PHP_OS != 'WINNT') {
$ewww_debug .= "Linux/UNIX style OS, checking permissions<br>";
$jpegtran_perms = substr(sprintf('%o', fileperms($jpegtran_dst)), -4);
$ewww_debug .= "jpegtran permissions: {$jpegtran_perms}<br>";
if ($jpegtran_perms != '0755') {
if (!chmod($jpegtran_dst, 0755)) {
$toolfail = true;
$ewww_debug .= "couldn't set jpegtran permissions<br>";
}
}
$gifsicle_perms = substr(sprintf('%o', fileperms($gifsicle_dst)), -4);
$ewww_debug .= "gifsicle permissions: {$gifsicle_perms}<br>";
if ($gifsicle_perms != '0755') {
if (!chmod($gifsicle_dst, 0755)) {
$toolfail = true;
$ewww_debug .= "couldn't set gifsicle permissions<br>";
}
}
$optipng_perms = substr(sprintf('%o', fileperms($optipng_dst)), -4);
$ewww_debug .= "optipng permissions: {$optipng_perms}<br>";
if ($optipng_perms != '0755') {
if (!chmod($optipng_dst, 0755)) {
$toolfail = true;
$ewww_debug .= "couldn't set optipng permissions<br>";
}
}
$pngquant_perms = substr(sprintf('%o', fileperms($pngquant_dst)), -4);
$ewww_debug .= "pngquant permissions: {$pngquant_perms}<br>";
if ($pngquant_perms != '0755') {
if (!chmod($pngquant_dst, 0755)) {
$toolfail = true;
$ewww_debug .= "couldn't set pngquant permissions<br>";
}
}
}
if ($toolfail) {
echo "<div id='ewww-image-optimizer-warning-tool-install' class='error'><p><strong>" . sprintf(__('EWWW Image Optimizer could not install tools in %s', EWWW_IMAGE_OPTIMIZER_DOMAIN), htmlentities(EWWW_IMAGE_OPTIMIZER_TOOL_PATH)) . ".</strong> " . sprintf(__('Please adjust permissions or create the folder. If you have installed the tools elsewhere on your system, check the option to %s.', EWWW_IMAGE_OPTIMIZER_DOMAIN), __('Use System Paths', EWWW_IMAGE_OPTIMIZER_DOMAIN)) . " " . sprintf(__('For more details, visit the %1$s or the %2$s.', EWWW_IMAGE_OPTIMIZER_DOMAIN), "<a href='options-general.php?page=ewww-image-optimizer/ewww-image-optimizer.php'>" . __('Settings Page', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>", "<a href='http://wordpress.org/extend/plugins/ewww-image-optimizer/installation/'>" . __('Installation Instructions', EWWW_IMAGE_OPTIMIZER_DOMAIN) . "</a>.</p></div>");
}
$migrate_fail = false;
if ($jpegtran_path = ewww_image_optimizer_get_option('ewww_image_optimizer_jpegtran_path')) {
$ewww_debug .= "found path setting for jpegtran, migrating<br>";
if (file_exists($jpegtran_path)) {
$ewww_debug .= "found custom jpegtran binary<br>";
if (!copy($jpegtran_path, EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-custom') || !chmod(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'jpegtran-custom', 0755)) {
$ewww_debug .= "unable to copy custom jpegtran binary or set permissions<br>";
$migrate_fail = true;
} else {
delete_option('ewww_image_optimizer_jpegtran_path');
$ewww_debug .= "migration successful, deleting path setting<br>";
}
}
}
if ($optipng_path = ewww_image_optimizer_get_option('ewww_image_optimizer_optipng_path')) {
$ewww_debug .= "found path setting for optipng, migrating<br>";
if (file_exists($optipng_path)) {
$ewww_debug .= "found custom optipng binary<br>";
if (!copy($optipng_path, EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng-custom') || !chmod(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'optipng-custom', 0755)) {
$ewww_debug .= "unable to copy custom optipng binary or set permissions<br>";
$migrate_fail = true;
} else {
delete_option('ewww_image_optimizer_optipng_path');
$ewww_debug .= "migration successful, deleting path setting<br>";
}
}
}
if ($gifsicle_path = ewww_image_optimizer_get_option('ewww_image_optimizer_gifsicle_path')) {
$ewww_debug .= "found path setting for gifsicle, migrating<br>";
if (file_exists($gifsicle_path)) {
$ewww_debug .= "found custom gifsicle binary<br>";
if (!copy($gifsicle_path, EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle-custom') || !chmod(EWWW_IMAGE_OPTIMIZER_TOOL_PATH . 'gifsicle-custom', 0755)) {
$ewww_debug .= "unable to copy custom gifislce binary or set permissions<br>";
$migrate_fail = true;
} else {
delete_option('ewww_image_optimizer_gifsicle_path');
$ewww_debug .= "migration successful, deleting path setting<br>";
}
}
}
if ($migrate_fail) {
echo "<div id='ewww-image-optimizer-warning-tool-install' class='error'><p><strong>" . sprintf(__('EWWW Image Optimizer attempted to move your custom-built binaries to %s but the operation was unsuccessful', EWWW_IMAGE_OPTIMIZER_DOMAIN), htmlentities(EWWW_IMAGE_OPTIMIZER_TOOL_PATH)) . ".</strong> " . __('Please adjust the permissions on this folder', EWWW_IMAGE_OPTIMIZER_DOMAIN) . ".</p></div>";
}
}
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 '';
}
}