mirror of
https://github.com/friendica/friendica
synced 2024-05-14 23:19:38 +02:00
77 lines
2.3 KiB
PHP
77 lines
2.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2023, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Network\Factory;
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use Friendica\BaseFactory;
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use Friendica\Core\System;
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use Friendica\Network\Entity;
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/**
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* Implementation of the Content-Type header value from the MIME type RFC
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*
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* @see https://www.rfc-editor.org/rfc/rfc2045#section-5
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*/
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class MimeType extends BaseFactory
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{
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public function createFromContentType(?string $contentType): Entity\MimeType
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{
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if ($contentType) {
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$parameterStrings = explode(';', $contentType);
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$mimetype = array_shift($parameterStrings);
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$types = explode('/', $mimetype);
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if (count($types) >= 2) {
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$filetype = strtolower($types[0]);
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$subtype = strtolower($types[1]);
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} else {
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$this->logger->notice('Unknown MimeType', ['type' => $contentType, 'callstack' => System::callstack(10)]);
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}
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$parameters = [];
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foreach ($parameterStrings as $parameterString) {
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$parameterString = trim($parameterString);
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$parameterParts = explode('=', $parameterString, 2);
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if (count($parameterParts) < 2) {
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continue;
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}
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$attribute = trim($parameterParts[0]);
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$valueString = trim($parameterParts[1]);
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if ($valueString[0] == '"' && $valueString[strlen($valueString) - 1] == '"') {
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$valueString = substr(str_replace(['\\"', '\\\\', "\\\r"], ['"', '\\', "\r"], $valueString), 1, -1);
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}
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$value = preg_replace('#\s*\([^()]*?\)#', '', $valueString);
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$parameters[$attribute] = $value;
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}
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}
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return new Entity\MimeType(
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$filetype ?? 'unkn',
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$subtype ?? 'unkn',
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$parameters ?? [],
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);
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}
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}
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