406 lines
11 KiB
Text
406 lines
11 KiB
Text
<?php namespace ProcessWire;
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/**
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* Class SystemUpdater
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*
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* ProcessWire System Helper Module
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*
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* ProcessWire 3.x, Copyright 2020 by Ryan Cramer
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* https://processwire.com
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*
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* @method coreVersionChange($fromVersion, $toVersion)
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*
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*/
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class SystemUpdater extends WireData implements Module, ConfigurableModule {
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public static function getModuleInfo() {
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return array(
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'title' => __('System Updater', __FILE__), // Module Title
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'summary' => __('Manages system versions and upgrades.', __FILE__), // Module Summary
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'permanent' => true,
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'singular' => true,
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'autoload' => false,
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/**
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* This version number is important, as this updater keeps the systemVersion up with this version
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*
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*/
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'version' => 20,
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);
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}
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protected $configData = array(
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// systemVersion generally represents the DB schema version, but
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// can represent anything about the system that's related to the individual installation.
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// 0 = the first version when this module was created, should remain there.
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'systemVersion' => 0,
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);
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/**
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* Number of updates that were applied during this request
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*
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*/
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protected $numUpdatesApplied = 0;
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/**
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* Get array of updates that were applied
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*
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* @var array Array of update version numbers
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*
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*/
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protected $updatesApplied = array();
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/**
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* Is an update being applied manually?
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*
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* @var bool|int Contains update number when one is being manually applied
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*
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*/
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protected $manualVersion = false;
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/**
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* Part of the ConfigurableModule interface, sets config data to the module
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*
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* @param array $data
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*
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*/
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public function setConfigData(array $data) {
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$this->configData = array_merge($this->configData, $data);
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}
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/**
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* Perform version checks and update as needed
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*
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*/
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public function init() {
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$config = $this->wire('config');
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$info = self::getModuleInfo();
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$moduleVersion = $info['version'];
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foreach($this->configData as $key => $value) {
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if($key == 'coreVersion') continue;
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$config->$key = $value;
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}
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$systemVersion = (int) $config->systemVersion;
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if(empty($systemVersion)) {
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// double check, just in case (should not be possible for this to occur)
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$this->configData = $this->wire('modules')->getModuleConfigData($this);
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$systemVersion = (int) isset($this->configData['systemVersion']) ? $this->configData['systemVersion'] : 0;
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}
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while($systemVersion < $moduleVersion) {
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// apply the incremental version update
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if(!$this->update($systemVersion+1)) break;
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// we increment the config systemVersion so that the version is also available to the updater
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$systemVersion++;
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// we save the configData for every version in case an update throws an exception
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// then already applied updates won't be applied again
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$this->saveSystemVersion($systemVersion);
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$this->numUpdatesApplied++;
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$this->updatesApplied[] = ($systemVersion-1);
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}
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if($this->numUpdatesApplied > 0) {
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// if updates were applied, reset the modules cache
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$this->modules->resetCache();
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}
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}
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/**
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* Called after ProcessWire API ready
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*
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*/
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public function ready() {
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static $called = false;
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if($called) return; // just in case we add auto-ready support to non-autoload modules
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if($this->wire('page')->template != 'admin') return;
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if($this->wire('config')->ajax) return;
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$coreVersion = isset($this->configData['coreVersion']) ? $this->configData['coreVersion'] : '';
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$configVersion = $this->wire('config')->version;
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if($coreVersion != $configVersion) $this->coreVersionChange($coreVersion, $configVersion);
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$called = true;
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}
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/**
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* Hook called when the core version changes, in case any listeners want it
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*
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* Note that version change is only detected when a page from the admin is viewed.
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* To hook this, hook to "SystemUpdater::coreVersionChange"
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*
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* @param string $fromVersion
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* @param string $toVersion
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*
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*/
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protected function ___coreVersionChange($fromVersion, $toVersion) {
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$this->message(sprintf($this->_('Detected core version change %1$s => %2$s'), $fromVersion, $toVersion));
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if( (strpos($fromVersion, '2') === 0 && strpos($toVersion, '3') === 0) ||
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(strpos($fromVersion, '3') === 0 && strpos($toVersion, '2') === 0)) {
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// clear FileCompiler cache
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$config = $this->wire('config');
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if($config->templateCompile || $config->moduleCompile) {
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/** @var FileCompiler $compiler */
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$compiler = $this->wire(new FileCompiler($this->wire('config')->paths->templates));
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$compiler->clearCache(true);
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$this->message($this->_('Cleared file compiler cache'));
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}
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}
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if(!$this->numUpdatesApplied) {
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// reset modules cache, only if it hasn't been reset already by a system update
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$this->modules->resetCache();
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}
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$this->configData['coreVersion'] = $toVersion;
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$this->wire('modules')->saveModuleConfigData($this, $this->configData);
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// remove admin theme cached info in session
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foreach($this->wire('session') as $key => $value) {
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if(strpos($key, 'AdminTheme') === 0) {
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$this->wire('session')->remove($key);
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}
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}
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}
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/**
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* Save the system version as the given version number
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*
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* @param int $version
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* @return bool
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*
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*/
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public function saveSystemVersion($version) {
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if($this->manualVersion == $version) return false;
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$version = (int) $version;
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$this->wire('config')->systemVersion = $version;
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$this->configData['systemVersion'] = $version;
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$this->configData['coreVersion'] = $this->wire('config')->version;
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$this->wire('modules')->saveModuleConfigData($this, $this->configData);
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$this->message("Update #$version: Completed!");
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return true;
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}
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/**
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* Check for an update file in the format: SystemUpdater123 where '123' is the version it upgrades to
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*
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* If found, instantiate the class and its constructor should perform the update or add any hooks necessary to perform the update
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*
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* @param int $version
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* @return bool
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*
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*/
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protected function update($version) {
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$errorMessage = sprintf('Failed to apply update %d', $version);
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$update = null;
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try {
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$update = $this->getUpdate($version);
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if(!$update) return true;
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$update->message('Initializing update');
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$success = $update->execute();
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if($success === false) $update->error($errorMessage);
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} catch(\Exception $e) {
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$msg = $errorMessage . " - " . $e->getMessage();
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$messenger = $update ? $update : $this;
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$messenger->error($msg);
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$success = false;
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}
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return $success;
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}
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/**
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* Get a specific SystemUpdate class instance by version number and return it (without executing it)
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*
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* @param int $version Update version number
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* @return null|SystemUpdate Returns SystemUpdate instance of available or null if not
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* @since 3.0.135
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*
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*/
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public function getUpdate($version) {
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$path = dirname(__FILE__) . '/';
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require_once($path . 'SystemUpdate.php');
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$className = 'SystemUpdate' . $version;
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$filename = $path . $className . '.php';
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if(!is_file($filename)) return null;
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require_once($filename);
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$className = wireClassName($className, true);
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/** @var SystemUpdate $update */
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$update = $this->wire(new $className($this));
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return $update;
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}
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/**
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* Manually apply a update
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*
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* The system version is not changed when applying an update manually.
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*
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* @param int|SystemUpdate $version Update version number or instance of SystemUpdate you want to apply
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* @return bool True on success, false on fail
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* @since 3.0.135
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*
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*/
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public function apply($version) {
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if(is_object($version)) {
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$update = $version;
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$version = $update->getVersion();
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} else {
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$update = null;
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$version = (int) $version;
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}
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$this->manualVersion = $version;
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try {
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if(!$update) $update = $this->getUpdate($version);
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$success = $update ? $update->execute() : true;
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} catch(\Exception $e) {
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$this->error($e->getMessage());
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$success = false;
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}
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$this->manualVersion = false;
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return $success;
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}
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/**
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* Get instance of SystemUpdaterChecks for performing system checks
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*
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* #pw-internal
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*
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* @return SystemUpdaterChecks
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* @since 3.0.135
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*
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*/
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public function getChecks() {
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require_once(dirname(__FILE__) . '/SystemUpdaterChecks.php');
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$checks = new SystemUpdaterChecks();
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$this->wire($checks);
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return $checks;
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}
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/**
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* Get array of updates (update version numbers) that were automatically applied during this request
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*
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* @return array
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* @since 3.0.135
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*
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*/
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public function getUpdatesApplied() {
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return $this->updatesApplied;
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}
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/**
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* Message notice
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*
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* @param string $text
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* @param int $flags
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* @return SystemUpdater|WireData
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*
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*/
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public function message($text, $flags = 0) {
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$this->log($text);
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return parent::message($text, $flags);
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}
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/**
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* Warning notice
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*
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* @param string $text
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* @param int $flags
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* @return SystemUpdater|WireData
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*
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*/
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public function warning($text, $flags = 0) {
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$text = "WARNING: $text";
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$this->log($text);
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return parent::warning($text, $flags);
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}
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/**
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* Error notice
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*
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* @param string $text
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* @param int $flags
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* @return SystemUpdater|WireData
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*
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*/
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public function error($text, $flags = 0) {
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$text = "ERROR: $text";
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$this->log($text);
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return parent::error($text, $flags);
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}
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/**
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* Log a message to system-updater.txt log file
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*
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* @param string $text
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*
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*/
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public function log($text) {
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$options = array('showUser' => false, 'showPage' => false);
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$this->wire('log')->save('system-updater', $text, $options);
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}
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/**
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* Required for ConfigurableModule interface
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*
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* @param array $data
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* @return InputfieldWrapper
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*
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*/
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public function getModuleConfigInputfields(array $data) {
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$inputfields = $this->wire(new InputfieldWrapper());
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$logfile = $this->wire('config')->paths->logs . 'system-updater.txt';
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if(is_file($logfile)) {
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$f = $this->wire('modules')->get('InputfieldMarkup');
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$f->attr('name', '_log');
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$f->label = $this->_('System Update Log');
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$logContent = $this->wire('sanitizer')->unentities(file_get_contents($logfile));
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$logContent = preg_replace('!<a href=.+?>(.+?)</a>!', '$1', $logContent);
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$f->value = '<pre>' . $this->wire('sanitizer')->entities($logContent) . '</pre>';
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$inputfields->add($f);
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}
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$f = $this->wire('modules')->get('InputfieldInteger');
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$f->attr('name', 'systemVersion');
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$f->label = $this->_('System Version');
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$f->description = $this->_('This lets you re-apply a system version update by reducing the version number.');
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$f->attr('value', $data['systemVersion']);
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$inputfields->add($f);
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$f = $this->wire('modules')->get('InputfieldHidden');
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$f->attr('name', 'coreVersion');
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$f->attr('value', $this->wire('config')->version);
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$inputfields->add($f);
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return $inputfields;
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}
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}
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