Merge pull request #496 from mercadopago/feature/add-idempotency-key-…

…to-headers-v2

Add x-idempotency-key header to requests

README.md

@@ -17,7 +17,7 @@ First time using Mercado Pago? Create your [Mercado Pago account](https://www.me
 1. Download [Composer](https://getcomposer.org/doc/00-intro.md) if not already installed
 
 2. On your project directory run on the command line
-`composer require "mercadopago/dx-php:2.6.1"` for PHP7 or `composer require "mercadopago/dx-php:1.12.5"` for PHP5.6.
+`composer require "mercadopago/dx-php:2.6.2"` for PHP7 or `composer require "mercadopago/dx-php:1.12.5"` for PHP5.6.
 
 3. Copy the access_token in the [credentials](https://www.mercadopago.com/mlb/account/credentials) section of the page and replace YOUR_ACCESS_TOKEN with it.
 

composer.json

@@ -4,7 +4,7 @@
  "type": "library",
  "homepage": "https://github.com/mercadopago/sdk-php",
  "license": "MIT",
- "version": "2.6.1",
+ "version": "2.6.2",
  "config": {
  "platform": {
  "php": "7.1"

src/MercadoPago/Manager.php

@@ -84,7 +84,7 @@ public function execute($entity, $method = 'get', $options = [])
 
  $this->_setDefaultHeaders($configuration->query);
  $this->_setCustomHeaders($entity, $configuration->query);
- //$this->_setIdempotencyHeader($configuration->query, $configuration, $method);
+ $this->_setIdempotencyHeader($configuration->query, $method);
  $this->setQueryParams($entity);
 
  return $this->_client->{$method}($configuration->url, $configuration->query);
@@ -409,32 +409,43 @@ protected function _setDefaultHeaders(&$query)
  * @param $configuration
  * @param string $method
  */
- protected function _setIdempotencyHeader(&$query, $configuration, $method)
+ protected function _setIdempotencyHeader(&$query, $method)
  {
- if (!isset($configuration->methods[$method])) {
- return;
- }
- $fields = '';
- if ($configuration->methods[$method]['idempotency']) {
- $fields = $this->_getIdempotencyAttributes($configuration->attributes);
- }
- if ($fields != '') {
- $query['headers']['x-idempotency-key'] = hash(self::$CIPHER, $fields);
+ if ($method != 'get' && $method != 'delete') {
+ if (array_key_exists('headers', array_change_key_case($query)) && !array_key_exists('x-idempotency-key', array_change_key_case($query['headers']))){
+ $query['headers']['x-idempotency-key'] = $this->_generateUUID();
+ }
  }
  }
  /**
  * @param $attributes
  *
  * @return string
  */
- protected function _getIdempotencyAttributes($attributes)
+ protected function _generateUUID()
  {
- $result = [];
- foreach ($attributes as $key => $value) {
- if ($value['idempotency']) {
- $result[] = $key;
- }
- }
- return implode('&', $result);
+ return sprintf(
+ '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
+ // 32 bits for "time_low"
+ mt_rand(0, 0xffff),
+ mt_rand(0, 0xffff),
+
+ // 16 bits for "time_mid"
+ mt_rand(0, 0xffff),
+
+ // 16 bits for "time_hi_and_version",
+ // four most significant bits holds version number 4
+ mt_rand(0, 0x0fff) | 0x4000,
+
+ // 16 bits, 8 bits for "clk_seq_hi_res",
+ // 8 bits for "clk_seq_low",
+ // two most significant bits holds zero and one for variant DCE1.1
+ mt_rand(0, 0x3fff) | 0x8000,
+
+ // 48 bits for "node"
+ mt_rand(0, 0xffff),
+ mt_rand(0, 0xffff),
+ mt_rand(0, 0xffff)
+ );
  }
 }

src/MercadoPago/Version.php

@@ -4,5 +4,5 @@
 class Version
 {
  public static
- $_VERSION = '2.6.1';
+ $_VERSION = '2.6.2';
 }