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post.php: refactor image metadata stripping into function

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This commit is contained in:
Zankaria 2024-03-21 16:02:09 +01:00
parent 0cefa9353b
commit e455080d42
1 changed files with 27 additions and 9 deletions
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34
post.php
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@ -165,6 +165,26 @@ function ocr_image(array $config, string $img_path): string {
return trim($ret);
}
/**
* Trim an image's EXIF metadata
*
* @param string $img_path The file path to the image.
* @return int The size of the stripped file.
* @throws RuntimeException Throws on IO errors.
*/
function strip_image_metadata(string $img_path): int {
$err = shell_exec_error('exiftool -overwrite_original -ignoreMinorErrors -q -q -all= ' . escapeshellarg($img_path));
if ($err === false) {
throw new RuntimeException('Could not strip EXIF metadata!');
}
clearstatcache(true, $img_path);
$ret = filesize($img_path);
if ($ret === false) {
throw new RuntimeException('Could not calculate file size!');
}
return $ret;
}
/**
* Method handling functions
*/
@ -1089,16 +1109,14 @@ if (isset($_POST['delete'])) {
if ($config['redraw_image'] || (!@$file['exif_stripped'] && $config['strip_exif'] && ($file['extension'] == 'jpg' || $file['extension'] == 'jpeg'))) {
if (!$config['redraw_image'] && $config['use_exiftool']) {
if ($error = shell_exec_error('exiftool -overwrite_original -ignoreMinorErrors -q -q -all= ' .
escapeshellarg($file['tmp_name']))) {
try {
$file['size'] = strip_image_metadata($file['tmp_name']);
} catch (RuntimeException $e) {
if ($config['syslog']) {
_syslog(LOG_ERR, "Could not strip image metadata: {$e->getMessage()}");
// Since EXIF metadata can countain sensible info, fail the request.
error(_('Could not strip EXIF metadata!'), null, $error);
} else {
clearstatcache(true, $file['tmp_name']);
$ret = filesize($file['tmp_name']);
if ($ret === false) {
error(_('Could not calculate file size!'), null, $error);
}
$file['size'] = $ret;
}
} else {
$image->to($file['file']);