mirror of
https://github.com/openvk/chandler.git
synced 2025-04-03 15:01:50 +03:00
74 lines
2.2 KiB
PHP
74 lines
2.2 KiB
PHP
<?php declare(strict_types=1);
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function system_extension_mime_types(): array
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{
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# Returns the system MIME type mapping of extensions to MIME types, as defined in /etc/mime.types.
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$out = [];
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$file = fopen(__DIR__ . '/../bindata/mime.types', 'r');
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while(($line = fgets($file)) !== false) {
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$line = trim(preg_replace('/#.*/', '', $line));
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if(!$line)
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continue;
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$parts = preg_split('/\s+/', $line);
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if(count($parts) == 1)
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continue;
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$type = array_shift($parts);
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foreach($parts as $part)
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$out[$part] = $type;
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}
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fclose($file);
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return $out;
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}
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function system_extension_mime_type(string $file): ?string
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{
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# Returns the system MIME type (as defined in /etc/mime.types) for the filename specified.
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#
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# $file - the filename to examine
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$aliases = [
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"apng" => "png",
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];
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static $types;
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if(!isset($types))
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$types = system_extension_mime_types();
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$ext = pathinfo($file, PATHINFO_EXTENSION);
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if(!$ext)
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$ext = $file;
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$ext = strtolower($ext);
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$ext = $aliases[$ext] ?? $ext;
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return isset($types[$ext]) ? $types[$ext] : null;
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}
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function system_mime_type_extensions(): array
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{
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# Returns the system MIME type mapping of MIME types to extensions, as defined in /etc/mime.types (considering the first
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# extension listed to be canonical).
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$out = [];
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$file = fopen('/etc/mime.types', 'r');
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while(($line = fgets($file)) !== false) {
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$line = trim(preg_replace('/#.*/', '', $line));
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if(!$line)
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continue;
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$parts = preg_split('/\s+/', $line);
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if(count($parts) == 1)
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continue;
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$type = array_shift($parts);
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if(!isset($out[$type]))
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$out[$type] = array_shift($parts);
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}
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fclose($file);
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return $out;
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}
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function system_mime_type_extension(string $type): ?string
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{
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# Returns the canonical file extension for the MIME type specified, as defined in /etc/mime.types (considering the first
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# extension listed to be canonical).
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#
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# $type - the MIME type
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static $exts;
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if(!isset($exts))
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$exts = system_mime_type_extensions();
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return isset($exts[$type]) ? $exts[$type] : null;
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}
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