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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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/*
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 * This file is part of Psy Shell.
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 *
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 * (c) 2012-2022 Justin Hileman
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Psy\VersionUpdater;
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use Psy\Shell;
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class GitHubChecker implements Checker
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{
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    const URL = 'https://api.github.com/repos/bobthecow/psysh/releases/latest';
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    private $latest;
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    /**
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     * @return bool
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     */
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    public function isLatest(): bool
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    {
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        // version_compare doesn't handle semver completely;
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        // strip pre-release and build metadata before comparing
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        $version = \preg_replace('/[+-]\w+/', '', Shell::VERSION);
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        return \version_compare($version, $this->getLatest(), '>=');
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    }
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    /**
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     * @return string
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     */
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    public function getLatest(): string
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    {
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        if (!isset($this->latest)) {
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            $this->setLatest($this->getVersionFromTag());
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        }
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        return $this->latest;
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    }
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    /**
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     * @param string $version
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     */
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    public function setLatest(string $version)
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    {
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        $this->latest = $version;
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    }
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    /**
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     * @return string|null
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     */
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    private function getVersionFromTag()
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    {
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        $contents = $this->fetchLatestRelease();
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        if (!$contents || !isset($contents->tag_name)) {
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            throw new \InvalidArgumentException('Unable to check for updates');
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        }
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        $this->setLatest($contents->tag_name);
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        return $this->getLatest();
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    }
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    /**
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     * Set to public to make testing easier.
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     *
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     * @return mixed
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     */
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    public function fetchLatestRelease()
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    {
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        $context = \stream_context_create([
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            'http' => [
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                'user_agent' => 'PsySH/'.Shell::VERSION,
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                'timeout'    => 1.0,
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            ],
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        ]);
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        \set_error_handler(function () {
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            // Just ignore all errors with this. The checker will throw an exception
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            // if it doesn't work :)
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        });
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        $result = @\file_get_contents(self::URL, false, $context);
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        \restore_error_handler();
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        return \json_decode($result);
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    }
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}