mirror of
https://github.com/phpbb/phpbb.git
synced 2025-01-17 22:28:46 +01:00
502 lines
14 KiB
PHP
502 lines
14 KiB
PHP
<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb;
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use phpbb\exception\version_check_exception;
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use phpbb\json\sanitizer as json_sanitizer;
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/**
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* Class to handle version checking and comparison
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*/
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class version_helper
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{
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/**
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* @var string Host
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*/
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protected $host = 'version.phpbb.com';
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/**
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* @var string Path to file
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*/
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protected $path = '/phpbb';
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/**
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* @var string File name
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*/
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protected $file = 'versions.json';
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/**
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* @var bool Use SSL or not
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*/
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protected $use_ssl = true;
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/**
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* @var string Current version installed
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*/
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protected $current_version;
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/**
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* @var null|string Null to not force stability, 'unstable' or 'stable' to
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* force the corresponding stability
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*/
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protected $force_stability;
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/** @var \phpbb\cache\service */
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protected $cache;
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/** @var \phpbb\config\config */
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protected $config;
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/** @var \phpbb\file_downloader */
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protected $file_downloader;
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protected $version_schema = array(
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'stable' => array(
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'current' => 'version',
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'download' => 'url',
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'announcement' => 'url',
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'eol' => 'url',
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'security' => 'bool',
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),
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'unstable' => array(
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'current' => 'version',
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'download' => 'url',
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'announcement' => 'url',
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'eol' => 'url',
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'security' => 'bool',
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),
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);
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/**
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* Constructor
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*
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* @param \phpbb\cache\service $cache
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* @param \phpbb\config\config $config
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* @param \phpbb\file_downloader $file_downloader
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*/
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public function __construct(\phpbb\cache\service $cache, \phpbb\config\config $config, \phpbb\file_downloader $file_downloader)
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{
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$this->cache = $cache;
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$this->config = $config;
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$this->file_downloader = $file_downloader;
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if (defined('PHPBB_QA'))
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{
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$this->force_stability = 'unstable';
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}
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$this->current_version = $this->config['version'];
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}
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/**
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* Set location to the file
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*
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* @param string $host Host (e.g. version.phpbb.com)
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* @param string $path Path to file (e.g. /phpbb)
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* @param string $file File name (Default: versions.json)
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* @param bool $use_ssl Use SSL or not (Default: false)
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* @return version_helper
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*/
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public function set_file_location($host, $path, $file = 'versions.json', $use_ssl = false)
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{
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$this->host = $host;
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$this->path = $path;
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$this->file = $file;
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$this->use_ssl = $use_ssl;
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return $this;
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}
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/**
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* Set current version
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*
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* @param string $version The current version
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* @return version_helper
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*/
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public function set_current_version($version)
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{
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$this->current_version = $version;
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return $this;
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}
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/**
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* Over-ride the stability to force check to include unstable versions
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*
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* @param null|string Null to not force stability, 'unstable' or 'stable' to
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* force the corresponding stability
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* @return version_helper
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*/
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public function force_stability($stability)
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{
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$this->force_stability = $stability;
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return $this;
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}
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/**
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* Wrapper for version_compare() that allows using uppercase A and B
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* for alpha and beta releases.
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*
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* See http://www.php.net/manual/en/function.version-compare.php
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*
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* @param string $version1 First version number
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* @param string $version2 Second version number
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* @param string $operator Comparison operator (optional)
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*
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* @return mixed Boolean (true, false) if comparison operator is specified.
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* Integer (-1, 0, 1) otherwise.
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*/
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public function compare($version1, $version2, $operator = null)
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{
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return phpbb_version_compare($version1, $version2, $operator);
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}
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/**
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* Check whether or not a version is "stable"
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*
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* Stable means only numbers OR a pl release
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*
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* @param string $version
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* @return bool Bool true or false
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*/
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public function is_stable($version)
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{
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$matches = false;
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preg_match('/^[\d\.]+/', $version, $matches);
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if (empty($matches[0]))
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{
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return false;
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}
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return $this->compare($version, $matches[0], '>=');
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}
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/**
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* Gets the latest version for the current branch the user is on
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return string
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* @throws version_check_exception
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*/
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public function get_latest_on_current_branch($force_update = false, $force_cache = false)
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{
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$versions = $this->get_versions_matching_stability($force_update, $force_cache);
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$self = $this;
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$current_version = $this->current_version;
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// Filter out any versions less than the current version
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$versions = array_filter($versions, function($data) use ($self, $current_version) {
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return $self->compare($data['current'], $current_version, '>=');
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});
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// Get the lowest version from the previous list.
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return array_reduce($versions, function($value, $data) use ($self) {
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if ($value === null || $self->compare($data['current'], $value, '<'))
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{
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return $data['current'];
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}
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return $value;
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});
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}
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/**
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* Gets the latest update for the current branch the user is on
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* Will suggest versions from newer branches when EoL has been reached
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* and/or version from newer branch is needed for having all known security
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* issues fixed.
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return array Version info or empty array if there are no updates
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* @throws \RuntimeException
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*/
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public function get_update_on_branch($force_update = false, $force_cache = false)
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{
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$versions = $this->get_versions_matching_stability($force_update, $force_cache);
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$self = $this;
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$current_version = $this->current_version;
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// Filter out any versions less than the current version
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$versions = array_filter($versions, function($data) use ($self, $current_version) {
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return $self->compare($data['current'], $current_version, '>=');
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});
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// Get the lowest version from the previous list.
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$update_info = array_reduce($versions, function($value, $data) use ($self, $current_version) {
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if ($value === null && $self->compare($data['current'], $current_version, '>='))
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{
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if (!$data['eol'] && (!$data['security'] || $self->compare($data['security'], $data['current'], '<=')))
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{
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return ($self->compare($data['current'], $current_version, '>')) ? $data : array();
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}
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else
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{
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return null;
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}
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}
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return $value;
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});
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return $update_info === null ? array() : $update_info;
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}
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/**
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* Gets the latest extension update for the current phpBB branch the user is on
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* Will suggest versions from newer branches when EoL has been reached
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* and/or version from newer branch is needed for having all known security
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* issues fixed.
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return array Version info or empty array if there are no updates
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* @throws \RuntimeException
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*/
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public function get_ext_update_on_branch($force_update = false, $force_cache = false)
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{
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$versions = $this->get_versions_matching_stability($force_update, $force_cache);
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$self = $this;
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$current_version = $this->current_version;
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// Get current phpBB branch from version, e.g.: 3.2
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preg_match('/^(\d+\.\d+).*$/', $this->config['version'], $matches);
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$current_branch = $matches[1];
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// Filter out any versions less than the current version
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$versions = array_filter($versions, function($data) use ($self, $current_version) {
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return $self->compare($data['current'], $current_version, '>=');
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});
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// Filter out any phpbb branches less than the current version
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$branches = array_filter(array_keys($versions), function($branch) use ($self, $current_branch) {
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return $self->compare($branch, $current_branch, '>=');
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});
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if (!empty($branches))
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{
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$versions = array_intersect_key($versions, array_flip($branches));
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}
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else
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{
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// If branches are empty, it means the current phpBB branch is newer than any branch the
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// extension was validated against. Reverse sort the versions array so we get the newest
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// validated release available.
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krsort($versions);
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}
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// Get the first available version from the previous list.
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$update_info = array_reduce($versions, function($value, $data) use ($self, $current_version) {
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if ($value === null && $self->compare($data['current'], $current_version, '>='))
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{
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if (!$data['eol'] && (!$data['security'] || $self->compare($data['security'], $data['current'], '<=')))
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{
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return $self->compare($data['current'], $current_version, '>') ? $data : array();
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}
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else
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{
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return null;
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}
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}
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return $value;
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});
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return $update_info === null ? array() : $update_info;
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}
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/**
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* Obtains the latest version information
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return array
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* @throws version_check_exception
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*/
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public function get_suggested_updates($force_update = false, $force_cache = false)
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{
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$versions = $this->get_versions_matching_stability($force_update, $force_cache);
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$self = $this;
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$current_version = $this->current_version;
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// Filter out any versions less than or equal to the current version
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return array_filter($versions, function($data) use ($self, $current_version) {
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return $self->compare($data['current'], $current_version, '>');
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});
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}
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/**
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* Obtains the latest version information matching the stability of the current install
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return array Version info
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* @throws version_check_exception
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*/
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public function get_versions_matching_stability($force_update = false, $force_cache = false)
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{
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$info = $this->get_versions($force_update, $force_cache);
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if ($this->force_stability !== null)
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{
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return ($this->force_stability === 'unstable') ? $info['unstable'] : $info['stable'];
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}
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return ($this->is_stable($this->current_version)) ? $info['stable'] : $info['unstable'];
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}
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/**
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* Obtains the latest version information
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*
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* @param bool $force_update Ignores cached data. Defaults to false.
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* @param bool $force_cache Force the use of the cache. Override $force_update.
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* @return array Version info, includes stable and unstable data
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* @throws version_check_exception
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*/
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public function get_versions($force_update = false, $force_cache = false)
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{
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$cache_file = '_versioncheck_' . $this->host . $this->path . $this->file . $this->use_ssl;
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$info = $this->cache->get($cache_file);
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if ($info === false && $force_cache)
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{
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throw new version_check_exception('VERSIONCHECK_FAIL');
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}
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else if ($info === false || $force_update)
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{
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$info = $this->file_downloader->get($this->host, $this->path, $this->file, $this->use_ssl ? 443 : 80);
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$error_string = $this->file_downloader->get_error_string();
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if (!empty($error_string))
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{
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throw new version_check_exception($error_string);
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}
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// Sanitize any data we retrieve from a server
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$info = json_sanitizer::decode($info);
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if (empty($info['stable']) && empty($info['unstable']))
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{
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throw new version_check_exception('VERSIONCHECK_FAIL');
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}
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$info['stable'] = (empty($info['stable'])) ? array() : $info['stable'];
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$info['unstable'] = (empty($info['unstable'])) ? $info['stable'] : $info['unstable'];
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$info = $this->validate_versions($info);
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$this->cache->put($cache_file, $info, 86400); // 24 hours
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}
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return $info;
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}
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/**
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* Validate versions info input
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*
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* @param array $versions_info Decoded json data array. Will be modified
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* and cleaned by this method
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*
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* @return array Versions info array
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* @throws version_check_exception
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*/
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public function validate_versions($versions_info)
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{
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$array_diff = array_diff_key($versions_info, array($this->version_schema));
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// Remove excessive data
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if (count($array_diff) > 0)
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{
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$old_versions_info = $versions_info;
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$versions_info = array(
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'stable' => !empty($old_versions_info['stable']) ? $old_versions_info['stable'] : array(),
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'unstable' => !empty($old_versions_info['unstable']) ? $old_versions_info['unstable'] : array(),
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);
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unset($old_versions_info);
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}
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foreach ($versions_info as $stability_type => &$versions_data)
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{
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foreach ($versions_data as $branch => &$version_data)
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{
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if (!preg_match('/^[0-9a-z\-\.]+$/i', $branch))
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{
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unset($versions_data[$branch]);
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continue;
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}
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$stability_diff = array_diff_key($version_data, $this->version_schema[$stability_type]);
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if (count($stability_diff) > 0)
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{
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$old_version_data = $version_data;
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$version_data = array();
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foreach ($this->version_schema[$stability_type] as $key => $value)
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{
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if (isset($old_version_data[$key]))
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{
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$version_data[$key] = $old_version_data[$key];
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}
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}
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unset($old_version_data);
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}
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foreach ($version_data as $key => &$value)
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{
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if (!isset($this->version_schema[$stability_type][$key]))
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{
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unset($version_data[$key]);
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throw new version_check_exception('VERSIONCHECK_INVALID_ENTRY');
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}
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switch ($this->version_schema[$stability_type][$key])
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{
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case 'bool':
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$value = (bool) $value;
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break;
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case 'url':
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if (!empty($value) && !preg_match('#^' . get_preg_expression('url') . '$#iu', $value) &&
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!preg_match('#^' . get_preg_expression('www_url') . '$#iu', $value))
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{
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throw new version_check_exception('VERSIONCHECK_INVALID_URL');
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}
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break;
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case 'version':
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if (!empty($value) && !preg_match(get_preg_expression('semantic_version'), $value))
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{
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throw new version_check_exception('VERSIONCHECK_INVALID_VERSION');
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}
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break;
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default:
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// Shouldn't be possible to trigger this
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throw new version_check_exception('VERSIONCHECK_INVALID_ENTRY');
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}
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}
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}
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}
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return $versions_info;
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}
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}
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