TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
commit af8cc155b5
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+<?php
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Core;
+
+use TYPO3\CMS\Core\Exception;
+
+/**
+ * The TYPO3 Context object.
+ *
+ * A TYPO3 Application context is something like "Production", "Development",
+ * "Production/StagingSystem", and is set using the TYPO3_CONTEXT environment variable.
+ *
+ * A context can contain arbitrary sub-contexts, which are delimited with slash
+ * ("Production/StagingSystem", "Production/Staging/Server1"). The top-level
+ * contexts, however, must be one of "Testing", "Development" and "Production".
+ *
+ * Mainly, you will use $context->isProduction(), $context->isTesting() and
+ * $context->isDevelopment() inside your custom code.
+ *
+ * ATTENTION: The Testing context is only used internally when executing TYPO3 Core tests. It must not be used otherwise.
+ *
+ * This class is derived from the TYPO3 Flow framework.
+ * Credits go to the respective authors.
+ */
+class ApplicationContext
+{
+    /**
+     * The (internal) context string; could be something like "Development" or "Development/MyLocalMacBook"
+     *
+     * @var string
+     */
+    protected $contextString;
+
+    /**
+     * The root context; must be one of "Development", "Testing" or "Production"
+     *
+     * @var string
+     */
+    protected $rootContextString;
+
+    /**
+     * The parent context, or NULL if there is no parent context
+     *
+     * @var \TYPO3\CMS\Core\Core\ApplicationContext|null
+     */
+    protected $parentContext;
+
+    /**
+     * Initialize the context object.
+     *
+     * @param string $contextString
+     * @throws Exception if the parent context is none of "Development", "Production" or "Testing"
+     */
+    public function __construct($contextString)
+    {
+        if (!str_contains($contextString, '/')) {
+            $this->rootContextString = $contextString;
+            $this->parentContext = null;
+        } else {
+            $contextStringParts = explode('/', $contextString);
+            $this->rootContextString = $contextStringParts[0];
+            array_pop($contextStringParts);
+            $this->parentContext = new self(implode('/', $contextStringParts));
+        }
+
+        if (!in_array($this->rootContextString, ['Development', 'Production', 'Testing'], true)) {
+            throw new Exception('The given context "' . $contextString . '" was not valid. Only allowed are Development, Production and Testing, including their sub-contexts', 1335436551);
+        }
+
+        $this->contextString = $contextString;
+    }
+
+    /**
+     * Returns the full context string, for example "Development", or "Production/LiveSystem"
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->contextString;
+    }
+
+    /**
+     * Returns TRUE if this context is the Development context or a sub-context of it
+     *
+     * @return bool
+     */
+    public function isDevelopment()
+    {
+        return $this->rootContextString === 'Development';
+    }
+
+    /**
+     * Returns TRUE if this context is the Production context or a sub-context of it
+     *
+     * @return bool
+     */
+    public function isProduction()
+    {
+        return $this->rootContextString === 'Production';
+    }
+
+    /**
+     * Returns TRUE if this context is the Testing context or a sub-context of it
+     *
+     * @return bool
+     */
+    public function isTesting()
+    {
+        return $this->rootContextString === 'Testing';
+    }
+
+    /**
+     * Returns the parent context object, if any
+     *
+     * @return \TYPO3\CMS\Core\Core\ApplicationContext|null the parent context or NULL, if there is none
+     */
+    public function getParent()
+    {
+        return $this->parentContext;
+    }
+}