62 lines
1.8 KiB
PHP
62 lines
1.8 KiB
PHP
<?php
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/*
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* Name: Handle ICO
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* Author: Shish <webmaster@shishnet.org>
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* Description: Handle windows icons
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*/
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class IcoFileHandler extends DataHandlerExtension
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{
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const SUPPORTED_EXTENSIONS = ["ico", "ani", "cur"];
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protected function supported_ext(string $ext): bool
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{
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return in_array(strtolower($ext), self::SUPPORTED_EXTENSIONS);
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}
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protected function create_image_from_data(string $filename, array $metadata)
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{
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$image = new Image();
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$fp = fopen($filename, "r");
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try {
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unpack("Snull/Stype/Scount", fread($fp, 6));
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$subheader = unpack("Cwidth/Cheight/Ccolours/Cnull/Splanes/Sbpp/Lsize/loffset", fread($fp, 16));
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} finally {
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fclose($fp);
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}
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$width = $subheader['width'];
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$height = $subheader['height'];
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$image->width = $width == 0 ? 256 : $width;
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$image->height = $height == 0 ? 256 : $height;
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$image->filesize = $metadata['size'];
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$image->hash = $metadata['hash'];
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$image->filename = $metadata['filename'];
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$image->ext = $metadata['extension'];
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$image->tag_array = is_array($metadata['tags']) ? $metadata['tags'] : Tag::explode($metadata['tags']);
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$image->source = $metadata['source'];
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return $image;
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}
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protected function check_contents(string $file): bool
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{
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if (!file_exists($file)) {
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return false;
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}
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$fp = fopen($file, "r");
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$header = unpack("Snull/Stype/Scount", fread($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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protected function create_thumb(string $hash, string $type): bool
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{
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return create_thumbnail_convert($hash, $type);
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}
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}
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