From 71c2f384ece75e6e3508302fbc4b0343684749e8 Mon Sep 17 00:00:00 2001
From: Lonnie Ezell <lonnieje@gmail.com>
Date: Sun, 27 Aug 2017 22:45:50 -0500
Subject: [PATCH] Support retrieving array syntax values from POST, GET, etc.
 Fixes #627

---
 system/Entity.php                         |   4 +-
 system/HTTP/Request.php                   | 106 +++++++++-------------
 system/Model.php                          |   1 +
 tests/system/HTTP/IncomingRequestTest.php |  61 ++++++++++++-
 4 files changed, 107 insertions(+), 65 deletions(-)

diff --git a/system/Entity.php b/system/Entity.php
index 6cac6c65f5b2..bd7e54f6795a 100644
--- a/system/Entity.php
+++ b/system/Entity.php
@@ -285,7 +285,7 @@ protected function mapProperty(string $key)
 	 *
 	 * @return \CodeIgniter\I18n\Time
 	 */
-	private function mutateDate($value)
+	protected function mutateDate($value)
 	{
 		if ($value instanceof Time)
 		{
@@ -320,7 +320,7 @@ private function mutateDate($value)
 	 *
 	 * @return mixed
 	 */
-	private function castAs($value, string $type)
+	protected function castAs($value, string $type)
 	{
 		switch($type)
 		{
diff --git a/system/HTTP/Request.php b/system/HTTP/Request.php
index 6b1d6f3d5842..2c3b9c4947fa 100644
--- a/system/HTTP/Request.php
+++ b/system/HTTP/Request.php
@@ -322,24 +322,26 @@ protected function fetchGlobal($type, $index = null, $filter = null, $flags = nu
 			$filter = FILTER_DEFAULT;
 		}
 
+		$loopThrough = [];
+		switch ($type)
+		{
+			case INPUT_GET : $loopThrough = $_GET;
+				break;
+			case INPUT_POST : $loopThrough = $_POST;
+				break;
+			case INPUT_COOKIE : $loopThrough = $_COOKIE;
+				break;
+			case INPUT_SERVER : $loopThrough = $_SERVER;
+				break;
+			case INPUT_ENV : $loopThrough = $_ENV;
+				break;
+			case INPUT_REQUEST : $loopThrough = $_REQUEST;
+				break;
+		}
+
 		// If $index is null, it means that the whole input type array is requested
 		if (is_null($index))
 		{
-			$loopThrough = [];
-			switch ($type)
-			{
-				case INPUT_GET : $loopThrough = $_GET;
-					break;
-				case INPUT_POST : $loopThrough = $_POST;
-					break;
-				case INPUT_COOKIE : $loopThrough = $_COOKIE;
-					break;
-				case INPUT_SERVER : $loopThrough = $_SERVER;
-					break;
-				case INPUT_ENV : $loopThrough = $_ENV;
-					break;
-			}
-
 			$values = [];
 			foreach ($loopThrough as $key => $value)
 			{
@@ -361,57 +363,37 @@ protected function fetchGlobal($type, $index = null, $filter = null, $flags = nu
 
 			return $output;
 		}
-//
-//		// Does the index contain array notation?
-//		if (($count = preg_match_all('/(?:^[^\[]+)|\[[^]]*\]/', $index, $matches)) > 1) // Does the index contain array notation
-//		{
-//			$value = $array;
-//			for ($i = 0; $i < $count; $i++)
-//			{
-//				$key = trim($matches[0][$i], '[]');
-//				if ($key === '') // Empty notation will return the value as array
-//				{
-//					break;
-//				}
-//
-//				if (isset($value[$key]))
-//				{
-//					$value = $value[$key];
-//				}
-//				else
-//				{
-//					return NULL;
-//				}
-//			}
-//		}
+
+		// Does the index contain array notation?
+		if (($count = preg_match_all('/(?:^[^\[]+)|\[[^]]*\]/', $index, $matches)) > 1)
+		{
+			$value = $loopThrough;
+			for ($i = 0; $i < $count; $i++)
+			{
+				$key = trim($matches[0][$i], '[]');
+
+				if ($key === '') // Empty notation will return the value as array
+				{
+					break;
+				}
+
+				if (isset($value[$key]))
+				{
+					$value = $value[$key];
+				}
+				else
+				{
+					return null;
+				}
+			}
+		}
+
 		// Due to issues with FastCGI and testing,
 		// we need to do these all manually instead
 		// of the simpler filter_input();
-		switch ($type)
+		if (empty($value))
 		{
-			case INPUT_GET:
-				$value = $_GET[$index] ?? null;
-				break;
-			case INPUT_POST:
-				$value = $_POST[$index] ?? null;
-				break;
-			case INPUT_SERVER:
-				$value = $_SERVER[$index] ?? null;
-				break;
-			case INPUT_ENV:
-				$value = $_ENV[$index] ?? null;
-				break;
-			case INPUT_COOKIE:
-				$value = $_COOKIE[$index] ?? null;
-				break;
-			case INPUT_REQUEST:
-				$value = $_REQUEST[$index] ?? null;
-				break;
-			case INPUT_SESSION:
-				$value = $_SESSION[$index] ?? null;
-				break;
-			default:
-				$value = '';
+			$value = $loopThrough[$index] ?? null;
 		}
 
 		if (is_array($value) || is_object($value) || is_null($value))
diff --git a/system/Model.php b/system/Model.php
index 831abc0df1d0..c28966d083c0 100644
--- a/system/Model.php
+++ b/system/Model.php
@@ -1321,6 +1321,7 @@ protected function trigger(string $event, array $data)
 	}
 
 	//--------------------------------------------------------------------
+
 	//--------------------------------------------------------------------
 	// Magic
 	//--------------------------------------------------------------------
diff --git a/tests/system/HTTP/IncomingRequestTest.php b/tests/system/HTTP/IncomingRequestTest.php
index 92a27fc3d77e..ff8622d5239d 100644
--- a/tests/system/HTTP/IncomingRequestTest.php
+++ b/tests/system/HTTP/IncomingRequestTest.php
@@ -121,7 +121,66 @@ public function testFetchGlobalReturnsSingleValue()
 
 	//--------------------------------------------------------------------
 
-    /**
+	public function testFetchGlobalWithArrayTop()
+	{
+		$_POST = [
+			'clients' => [
+				'address' => [
+					'zipcode' => 90210
+				]
+			]
+		];
+
+		$this->assertEquals(['address' => ['zipcode' => 90210]], $this->request->getPost('clients'));
+	}
+
+	public function testFetchGlobalWithArrayChildNumeric()
+	{
+		$_POST = [
+			'clients' => [
+				[
+					'address' => [
+						'zipcode' => 90210
+					],
+				],
+				[
+					'address' => [
+						'zipcode' => 60610
+					],
+				],
+			]
+		];
+
+		$this->assertEquals(['zipcode' => 60610], $this->request->getPost('clients[1][address]'));
+	}
+
+	public function testFetchGlobalWithArrayChildElement()
+	{
+		$_POST = [
+			'clients' => [
+				'address' => [
+					'zipcode' => 90210
+				],
+			]
+		];
+
+		$this->assertEquals(['zipcode' => 90210], $this->request->getPost('clients[address]'));
+	}
+
+	public function testFetchGlobalWithArrayLastElement()
+	{
+		$_POST = [
+			'clients' => [
+				'address' => [
+					'zipcode' => 90210
+				]
+			]
+		];
+
+		$this->assertEquals(90210, $this->request->getPost('clients[address][zipcode]'));
+	}
+
+	/**
      * @see https://github.com/bcit-ci/CodeIgniter4/issues/353
      */
     public function testGetPostReturnsArrayValues()