Merge pull request #126 from Firesphere/hans/header-collector

Add a Header collector

.gitignore

@@ -0,0 +1,2 @@
+.php_cs.cache
+.idea

README.md

@@ -217,6 +217,7 @@ LeKoala\DebugBar\DebugBar:
 | `config_collector` | bool | Show the config tab. Defaults to true |
 | `partial_cache_collector` | bool | Show the partial cache tab. Defaults to true |
 | `email_collector` | bool | Show the email tab. Defaults to true |
+| `header_collector` | bool | Show the headers tab. Defaults to true |
 
 #### Disabling the debug bar
 

_config.php

@@ -72,11 +72,11 @@ function d()
             }
             foreach ($args as $arg) {
                 if ($isPlain && $arg === "") {
-                        echo "(empty)";
+                    echo "(empty)";
                     continue;
                 }
                 if ($isPlain && $arg === null) {
-                        echo "(null)";
+                    echo "(null)";
                     continue;
                 }
                 if (is_string($arg)) {

_config/debugbar.yml

@@ -38,6 +38,7 @@ LeKoala\DebugBar\DebugBar:
   config_collector: true
   partial_cache_collector: true
   email_collector: true
+  header_collector: true
 SilverStripe\Control\Director:
   rules:
     '__debugbar': 'LeKoala\DebugBar\DebugBarController'

code/Collector/DatabaseCollector.php

@@ -79,7 +79,7 @@ protected function collectData(TimeDataCollector $timeCollector = null)
         $warnDurationThreshold = DebugBar::config()->get('warn_dbqueries_threshold_seconds');
 
         $showDb = count(array_unique(array_map(function ($stmt) {
-                return $stmt['database'];
+            return $stmt['database'];
         }, $queries))) > 1;
 
         foreach ($queries as $stmt) {

code/Collector/HeaderCollector.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace LeKoala\DebugBar\Collector;
+
+use DebugBar\DataCollector\AssetProvider;
+use DebugBar\DataCollector\DataCollector;
+use DebugBar\DataCollector\Renderable;
+use SilverStripe\Control\Controller;
+
+class HeaderCollector extends DataCollector implements Renderable, AssetProvider
+{
+    /**
+     * @var \SilverStripe\Control\Controller;
+     */
+    protected $controller;
+
+    /**
+     * HeaderCollector constructor.
+     * @param Controller $controller
+     */
+    public function __construct($controller)
+    {
+        $this->controller = $controller;
+    }
+
+    /**
+     * @return array
+     */
+    public function getWidgets()
+    {
+        return [
+            'Headers'       => [
+                'icon'    => 'gear',
+                'widget'  => 'PhpDebugBar.Widgets.VariableListWidget',
+                'map'     => 'Headers.list',
+                'default' => '{}'
+            ],
+            'Headers:badge' => [
+                'map'     => 'Headers.count',
+                'default' => 0
+            ]
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function collect()
+    {
+
+        $result = $this->controller->getResponse()->getHeaders();
+
+        foreach ($result as $key => &$value) {
+            $value = trim(implode(PHP_EOL, explode('; ', $value)));
+            $value = implode(PHP_EOL . ' - ', explode(' ', $value));
+        }
+
+        return [
+            'count' => count($result),
+            'list'  => $result
+        ];
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Headers';
+    }
+
+    public function getAssets()
+    {
+        return [];
+    }
+}

code/Extension/ControllerExtension.php

@@ -2,6 +2,7 @@
 
 namespace LeKoala\DebugBar\Extension;
 
+use LeKoala\DebugBar\Collector\HeaderCollector;
 use LeKoala\DebugBar\Collector\SilverStripeCollector;
 use LeKoala\DebugBar\DebugBar;
 use SilverStripe\Control\Controller;
@@ -40,6 +41,10 @@ public function onAfterInit()
         }
 
         DebugBar::withDebugBar(function (\DebugBar\DebugBar $debugbar) {
+            // Add the headers Collector
+            if (!$debugbar->hasCollector('Headers') && DebugBar::config()->get('header_collector')) {
+                $debugbar->addCollector(new HeaderCollector($this->owner));
+            }
             /** @var $timeData DebugBar\DataCollector\TimeDataCollector */
             $timeData = $debugbar->getCollector('time');
             if (!$timeData) {