集成自动更新服务器

lib/plugin-update-checker/Puc/v5p3/StateStore.php

@@ -0,0 +1,209 @@
+<?php
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
+
+if ( !class_exists(StateStore::class, false) ):
+
+	class StateStore {
+		/**
+		 * @var int Last update check timestamp.
+		 */
+		protected $lastCheck = 0;
+
+		/**
+		 * @var string Version number.
+		 */
+		protected $checkedVersion = '';
+
+		/**
+		 * @var Update|null Cached update.
+		 */
+		protected $update = null;
+
+		/**
+		 * @var string Site option name.
+		 */
+		private $optionName = '';
+
+		/**
+		 * @var bool Whether we've already tried to load the state from the database.
+		 */
+		private $isLoaded = false;
+
+		public function __construct($optionName) {
+			$this->optionName = $optionName;
+		}
+
+		/**
+		 * Get time elapsed since the last update check.
+		 *
+		 * If there are no recorded update checks, this method returns a large arbitrary number
+		 * (i.e. time since the Unix epoch).
+		 *
+		 * @return int Elapsed time in seconds.
+		 */
+		public function timeSinceLastCheck() {
+			$this->lazyLoad();
+			return time() - $this->lastCheck;
+		}
+
+		/**
+		 * @return int
+		 */
+		public function getLastCheck() {
+			$this->lazyLoad();
+			return $this->lastCheck;
+		}
+
+		/**
+		 * Set the time of the last update check to the current timestamp.
+		 *
+		 * @return $this
+		 */
+		public function setLastCheckToNow() {
+			$this->lazyLoad();
+			$this->lastCheck = time();
+			return $this;
+		}
+
+		/**
+		 * @return null|Update
+		 */
+		public function getUpdate() {
+			$this->lazyLoad();
+			return $this->update;
+		}
+
+		/**
+		 * @param Update|null $update
+		 * @return $this
+		 */
+		public function setUpdate(Update $update = null) {
+			$this->lazyLoad();
+			$this->update = $update;
+			return $this;
+		}
+
+		/**
+		 * @return string
+		 */
+		public function getCheckedVersion() {
+			$this->lazyLoad();
+			return $this->checkedVersion;
+		}
+
+		/**
+		 * @param string $version
+		 * @return $this
+		 */
+		public function setCheckedVersion($version) {
+			$this->lazyLoad();
+			$this->checkedVersion = strval($version);
+			return $this;
+		}
+
+		/**
+		 * Get translation updates.
+		 *
+		 * @return array
+		 */
+		public function getTranslations() {
+			$this->lazyLoad();
+			if ( isset($this->update, $this->update->translations) ) {
+				return $this->update->translations;
+			}
+			return array();
+		}
+
+		/**
+		 * Set translation updates.
+		 *
+		 * @param array $translationUpdates
+		 */
+		public function setTranslations($translationUpdates) {
+			$this->lazyLoad();
+			if ( isset($this->update) ) {
+				$this->update->translations = $translationUpdates;
+				$this->save();
+			}
+		}
+
+		public function save() {
+			$state = new \stdClass();
+
+			$state->lastCheck = $this->lastCheck;
+			$state->checkedVersion = $this->checkedVersion;
+
+			if ( isset($this->update)) {
+				$state->update = $this->update->toStdClass();
+
+				$updateClass = get_class($this->update);
+				$state->updateClass = $updateClass;
+				$prefix = $this->getLibPrefix();
+				if ( Utils::startsWith($updateClass, $prefix) ) {
+					$state->updateBaseClass = substr($updateClass, strlen($prefix));
+				}
+			}
+
+			update_site_option($this->optionName, $state);
+			$this->isLoaded = true;
+		}
+
+		/**
+		 * @return $this
+		 */
+		public function lazyLoad() {
+			if ( !$this->isLoaded ) {
+				$this->load();
+			}
+			return $this;
+		}
+
+		protected function load() {
+			$this->isLoaded = true;
+
+			$state = get_site_option($this->optionName, null);
+
+			if ( !is_object($state) ) {
+				$this->lastCheck = 0;
+				$this->checkedVersion = '';
+				$this->update = null;
+				return;
+			}
+
+			$this->lastCheck = intval(Utils::get($state, 'lastCheck', 0));
+			$this->checkedVersion = Utils::get($state, 'checkedVersion', '');
+			$this->update = null;
+
+			if ( isset($state->update) ) {
+				//This mess is due to the fact that the want the update class from this version
+				//of the library, not the version that saved the update.
+
+				$updateClass = null;
+				if ( isset($state->updateBaseClass) ) {
+					$updateClass = $this->getLibPrefix() . $state->updateBaseClass;
+				} else if ( isset($state->updateClass) ) {
+					$updateClass = $state->updateClass;
+				}
+
+				$factory = array($updateClass, 'fromObject');
+				if ( ($updateClass !== null) && is_callable($factory) ) {
+					$this->update = call_user_func($factory, $state->update);
+				}
+			}
+		}
+
+		public function delete() {
+			delete_site_option($this->optionName);
+
+			$this->lastCheck = 0;
+			$this->checkedVersion = '';
+			$this->update = null;
+		}
+
+		private function getLibPrefix() {
+			//This assumes that the current class is at the top of the versioned namespace.
+			return __NAMESPACE__ . '\\';
+		}
+	}
+
+endif;