Fixes #11957: Get European Timezone {{start:R::t}}

Documentation/Variable.rst

@@ -193,6 +193,8 @@ The following `escape` & `action` types are available:
 +-------+----------------------------------------------------------------------------------------------------------------------------------+
 | p     | Password hashing: depends on the hashing type in the Typo3 installation, includes salting if configured.                         |
 +-------+----------------------------------------------------------------------------------------------------------------------------------+
+| t     | Returns the central european timezone (CET / CEST) depending on the given date. If the TZ is not GMT+1 or GMT+2, returns GMT+x   |
++-------+----------------------------------------------------------------------------------------------------------------------------------+
 | w     | wipe out current key/value pair from SIP store :ref:`variable-escape-wipe-key<variable-escape-wipe-key>`                         |
 +-------+----------------------------------------------------------------------------------------------------------------------------------+
 | X     | Throw exception if variable is not found in the given store(s). Outputs :ref:`variable-type-message-violate`                     |

extension/Classes/Core/Constants.php

@@ -755,6 +755,7 @@ const TOKEN_ESCAPE_MYSQL = 'm';
 const TOKEN_ESCAPE_PASSWORD_T3FE = 'p';
 const TOKEN_ESCAPE_NONE = '-';
 const TOKEN_ESCAPE_WIPE = 'w';
+const TOKEN_ESCAPE_TIMEZONE = 't';
 
 const TOKEN_ESCAPE_STOP_REPLACE = 'S';
 const TOKEN_ESCAPE_EXCEPTION = 'X';

extension/Classes/Core/Evaluate.php

@@ -262,6 +262,32 @@ class Evaluate {
         return $this->link->renderLink($token);
     }
 
+
+    /**
+     * Get the CET/CEST Timezone for a given date, or if date is '' based on the current date.
+     *
+     * @param string $dateStr
+     * @return string   // CET, CEST or GMT+?/GMT-?
+     */
+    public function getEuropeanTimezone($dateStr = '') {
+
+        $ts = ($dateStr == '') ? time() : strtotime($dateStr);
+        $offset = date("Z", $ts);
+        $offset = date("Z", $ts) / 3600;
+        switch ($offset) {
+            case 1:
+                $tz = "CET";
+                break;
+            case 2:
+                $tz = "CEST";
+                break;
+            default:
+                $tz = 'GMT' . sprintf("%+d", $offset);
+        }
+
+        return $tz;
+    }
+
     /**
      * @param $arrToken
      * @param $dbIndex
@@ -437,6 +463,9 @@ class Evaluate {
                     case TOKEN_ESCAPE_WIPE:
                         $flagWipe = true;
                         break;
+                    case TOKEN_ESCAPE_TIMEZONE:
+                        $value = $this->getEuropeanTimezone($value);
+                        break;
                     default:
                         throw new \UserFormException("Unknown escape qualifier: $escape", ERROR_UNKNOW_SANITIZE_CLASS);
                         break;

extension/Tests/Unit/Core/EvaluateTest.php

@@ -600,6 +600,25 @@ class EvaluateTest extends AbstractDatabaseTest {
         $eval->parse('go {{unknownVar:S::X}} stop');
     }
 
+    /**
+     * @throws \CodeException
+     * @throws \DbException
+     * @throws \UserFormException
+     * @throws \UserReportException
+     */
+    public function testGetEuropeanTimezone() {
+        $eval = new Evaluate($this->store, $this->dbArray[DB_INDEX_DEFAULT]);
+        date_default_timezone_set('Europe/Berlin');
+
+        $this->assertEquals('CET', $eval->getEuropeanTimezone('02.02.2020'));
+        $this->assertEquals('CEST', $eval->getEuropeanTimezone('02.06.2020'));
+        $this->assertEquals('CET', $eval->getEuropeanTimezone('02.12.2020'));
+        $this->assertContains($eval->getEuropeanTimezone(''), ['CET', 'CEST']);
+
+        $this->store->setVar('start', '02.06.2020', STORE_FORM, true);
+        $this->assertEquals('CEST', $eval->substitute('start:F:all:t', $foundInStore));
+    }
+
     /**
      */
     protected function setUp() {