Support: creation of generic helper functions.

qfq/helper/Support.php

+<?php
+/**
+ * Created by PhpStorm.
+ * User: crose
+ * Date: 1/28/16
+ * Time: 8:05 AM
+ */
+
+namespace qfq;
+
+require_once(__DIR__ . '/Sanatize.php');
+
+class Support {
+
+    /**
+     * @return string If exist content of $_GET[], otherwise the name of the first GET Parameter
+     * @throws exceptions\CodeException
+     */
+    public static function getCurrentPage() {
+        if (isset($_GET['id'])) {
+            $page = $_GET['id'];
+        } else {
+            $page = explode('&', $_SERVER['QUERY_STRING'])[0];
+            $page = explode('=', $page)[0];
+        }
+        return Sanatize::sanatize($page, SANATIZE_ALLOW_ALNUMX);
+    }
+
+    /**
+     * @param array $queryArray Empty or prefilled assoc array with url parameter
+     */
+    public static function appendTypo3ParameterToArray(array &$queryArray) {
+        if (isset($_GET['L']))
+            $queryArray['L'] = $_GET['L'];
+
+        if (isset($_GET['type']))
+            $queryArray['type'] = $_GET['type'];
+    }
+
+    /**
+     * Builds a urlencoded query string of assoc array
+     * @param array $queryArray
+     * @return string
+     */
+    public static function arrayToQueryString(array $queryArray) {
+        $items = array();
+
+        foreach ($queryArray as $key => $value) {
+            if (is_int($key)) {
+                $items[] = urlencode($value);
+            } else {
+                $items[] = $key . '=' . urlencode($value);
+            }
+        }
+
+        return implode('&', $items);
+    }
+}
\ No newline at end of file

tests/phpunit/SupportTest.php

+<?php
+/**
+ * Created by PhpStorm.
+ * User: crose
+ * Date: 1/28/16
+ * Time: 9:58 AM
+ */
+
+namespace qfq;
+
+require_once(__DIR__ . '/../../qfq/helper/Support.php');
+
+class SupportTest extends \PHPUnit_Framework_TestCase {
+
+    public function testGetCurrentPage() {
+        unset($_GET);
+        $_SERVER['QUERY_STRING'] = '';
+        $this->assertEquals('', Support::getCurrentPage());
+
+        $_SERVER['QUERY_STRING'] = 'firstpage&a=100';
+        $this->assertEquals('firstpage', Support::getCurrentPage());
+
+        $_GET['id'] = 'secondpage';
+        $this->assertEquals('secondpage', Support::getCurrentPage());
+
+        $_GET['id'] = 'secondpage<forbidden';
+        $this->assertEquals('', Support::getCurrentPage());
+
+    }
+
+    public function testAppendTypo3ParameterToArray() {
+
+        unset($_GET);
+
+        $queryArray = array();
+        Support::appendTypo3ParameterToArray($queryArray);
+        $this->assertEquals(array(), $queryArray);
+
+        $queryArray = ['id' => '', 'a' => '100'];
+        $expected = $queryArray;
+        Support::appendTypo3ParameterToArray($queryArray);
+        $this->assertEquals($expected, $queryArray);
+
+        $_GET['L'] = 1;
+        $_GET['type'] = 100;
+        $queryArray = ['id' => '', 'a' => '100'];
+        $expected = array_merge($_GET, $queryArray);
+        Support::appendTypo3ParameterToArray($queryArray);
+        $this->assertEquals($expected, $queryArray);
+
+        unset($_GET);
+        $_GET['L'] = 1;
+        $queryArray = ['id' => '', 'a' => '100'];
+        $expected = array_merge($_GET, $queryArray);
+        Support::appendTypo3ParameterToArray($queryArray);
+        $this->assertEquals($expected, $queryArray);
+
+        unset($_GET);
+        $_GET['type'] = 1;
+        $queryArray = ['id' => '', 'a' => '100'];
+        $expected = array_merge($_GET, $queryArray);
+        Support::appendTypo3ParameterToArray($queryArray);
+        $this->assertEquals($expected, $queryArray);
+
+    }
+
+    public function testArrayToQueryString() {
+        $actual = Support::arrayToQueryString(array());
+        $expected = '';
+        $this->assertEquals($expected, $actual);
+
+        $actual = Support::arrayToQueryString(['id', 'name']);
+        $expected = '';
+        $this->assertEquals('id&name', $actual);
+
+        $actual = Support::arrayToQueryString(['id' => '55', 'name']);
+        $expected = '';
+        $this->assertEquals('id=55&name', $actual);
+
+        $actual = Support::arrayToQueryString(['id' => '55', 'name' => 'Heinz']);
+        $expected = '';
+        $this->assertEquals('id=55&name=Heinz', $actual);
+
+        $actual = Support::arrayToQueryString(['id' => '55', 'name' => 'He<b>inz']);
+        $expected = '';
+        $this->assertEquals('id=55&name=He%3Cb%3Einz', $actual);
+
+    }
+}