fix labels and text editors for Quest creation

www/analytics/core/DataTable/Renderer/Json.php

@@ -0,0 +1,140 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\DataTable\Renderer;
+
+use Piwik\Common;
+use Piwik\DataTable\Renderer;
+use Piwik\DataTable;
+use Piwik\ProxyHttp;
+
+/**
+ * JSON export.
+ * Works with recursive DataTable (when a row can be associated with a subDataTable).
+ *
+ */
+class Json extends Renderer
+{
+    /**
+     * Computes the dataTable output and returns the string/binary
+     *
+     * @return string
+     */
+    public function render()
+    {
+        $this->renderHeader();
+        return $this->renderTable($this->table);
+    }
+
+    /**
+     * Computes the exception output and returns the string/binary
+     *
+     * @return string
+     */
+    function renderException()
+    {
+        $this->renderHeader();
+
+        $exceptionMessage = $this->getExceptionMessage();
+        $exceptionMessage = str_replace(array("\r\n", "\n"), "", $exceptionMessage);
+
+        $result = json_encode(array('result' => 'error', 'message' => $exceptionMessage));
+
+        return $this->jsonpWrap($result);
+    }
+
+    /**
+     * Computes the output for the given data table
+     *
+     * @param DataTable $table
+     * @return string
+     */
+    protected function renderTable($table)
+    {
+        if (is_array($table)) {
+            $array = $table;
+            if (self::shouldWrapArrayBeforeRendering($array, $wrapSingleValues = true)) {
+                $array = array($array);
+            }
+
+            foreach ($array as $key => $tab) {
+                if ($tab instanceof DataTable\Map
+                    || $tab instanceof DataTable
+                    || $tab instanceof DataTable\Simple) {
+                    $array[$key] = $this->convertDataTableToArray($tab);
+
+                    if (!is_array($array[$key])) {
+                        $array[$key] = array('value' => $array[$key]);
+                    }
+                }
+            }
+
+        } else {
+            $array = $this->convertDataTableToArray($table);
+        }
+
+        if (!is_array($array)) {
+            $array = array('value' => $array);
+        }
+
+        // decode all entities
+        $callback = function (&$value, $key) {
+            if (is_string($value)) {
+                $value = html_entity_decode($value, ENT_QUOTES, "UTF-8");
+            };
+        };
+        array_walk_recursive($array, $callback);
+
+        $str = json_encode($array);
+
+        return $this->jsonpWrap($str);
+    }
+
+    /**
+     * @param $str
+     * @return string
+     */
+    protected function jsonpWrap($str)
+    {
+        if (($jsonCallback = Common::getRequestVar('callback', false)) === false)
+            $jsonCallback = Common::getRequestVar('jsoncallback', false);
+        if ($jsonCallback !== false) {
+            if (preg_match('/^[0-9a-zA-Z_.]*$/D', $jsonCallback) > 0) {
+                $str = $jsonCallback . "(" . $str . ")";
+            }
+        }
+
+        return $str;
+    }
+
+    /**
+     * Sends the http header for json file
+     */
+    protected function renderHeader()
+    {
+        self::sendHeaderJSON();
+        ProxyHttp::overrideCacheControlHeaders();
+    }
+
+    public static function sendHeaderJSON()
+    {
+        @header('Content-Type: application/json; charset=utf-8');
+    }
+
+    private function convertDataTableToArray($table)
+    {
+        $renderer = new Php();
+        $renderer->setTable($table);
+        $renderer->setRenderSubTables($this->isRenderSubtables());
+        $renderer->setSerialize(false);
+        $renderer->setHideIdSubDatableFromResponse($this->hideIdSubDatatable);
+        $array = $renderer->flatRender();
+
+        return $array;
+    }
+}