49 lines
1.7 KiB
PHP
49 lines
1.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Shimmie2;
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class IcoFileHandler extends DataHandlerExtension
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{
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protected array $SUPPORTED_MIME = [MimeType::ICO, MimeType::ANI, MimeType::WIN_BITMAP, MimeType::ICO_OSX];
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protected function media_check_properties(MediaCheckPropertiesEvent $event): void
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{
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$event->image->lossless = true;
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$event->image->video = false;
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$event->image->audio = false;
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$event->image->image = ($event->image->get_mime() != MimeType::ANI);
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$fp = false_throws(fopen($event->image->get_image_filename(), "r"));
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try {
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fseek($fp, 6); // skip header
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$subheader = false_throws(unpack("Cwidth/Cheight/Ccolours/Cnull/Splanes/Sbpp/Lsize/loffset", false_throws(fread($fp, 16))));
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$width = $subheader['width'];
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$height = $subheader['height'];
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$event->image->width = $width == 0 ? 256 : $width;
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$event->image->height = $height == 0 ? 256 : $height;
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} finally {
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fclose($fp);
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}
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}
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protected function create_thumb(Image $image): bool
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{
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try {
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create_image_thumb($image, MediaEngine::IMAGICK);
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return true;
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} catch (MediaException $e) {
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log_warning("handle_ico", "Could not generate thumbnail. " . $e->getMessage());
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return false;
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}
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}
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protected function check_contents(string $tmpname): bool
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{
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$fp = false_throws(fopen($tmpname, "r"));
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$header = false_throws(unpack("Snull/Stype/Scount", false_throws(fread($fp, 6))));
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fclose($fp);
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return ($header['null'] == 0 && ($header['type'] == 0 || $header['type'] == 1));
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}
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}
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