finish up the first version

.gitignore

@@ -2,4 +2,5 @@ build
 composer.lock
 docs
 vendor
-coverage
+coverage
+temp

.phpunit.result.cache

@@ -0,0 +1 @@
+C:30:"PHPUnit\Runner\TestResultCache":562:{a:2:{s:7:"defects";a:0:{}s:5:"times";a:15:{s:22:"instanceOfCsdConverter";d:0.028;s:22:"fileExistsOrIsReadable";d:0.003;s:14:"fileIsNotEmpty";d:0.002;s:15:"convertCerToPem";d:0.014;s:31:"convertCerToPemIfIsNotConverted";d:0.015;s:13:"cerIsValidCsd";d:0.016;s:15:"getSerialNumber";d:0.015;s:8:"getTaxId";d:0.015;s:24:"datesAreInstanceOfCarbon";d:0.014;s:7:"isValid";d:0.015;s:31:"convertKeyToPemIfIsNotConverted";d:0.019;s:17:"assertSeeFilename";d:0.022;s:16:"saveToAGivenPath";d:0.023;s:28:"saveToAGivenPathWithFilename";d:0.018;s:16:"encryptPemInDes3";d:0.029;}}}

README.md

@@ -1,11 +1,11 @@
-# Very short description of the package
+# Convert pem required files for CFDI
 
 [![Latest Version on Packagist](https://img.shields.io/packagist/v/feimx/csd_converter.svg?style=flat-square)](https://packagist.org/packages/feimx/csd_converter)
 [![Build Status](https://img.shields.io/travis/feimx/csd_converter/master.svg?style=flat-square)](https://travis-ci.org/feimx/csd_converter)
 [![Quality Score](https://img.shields.io/scrutinizer/g/feimx/csd_converter.svg?style=flat-square)](https://scrutinizer-ci.com/g/feimx/csd_converter)
 [![Total Downloads](https://img.shields.io/packagist/dt/feimx/csd_converter.svg?style=flat-square)](https://packagist.org/packages/feimx/csd_converter)
 
-This is where your description should go. Try and limit it to a paragraph or two, and maybe throw in a mention of what PSRs you support to avoid any confusion with users and contributors.
+The `feimx/csd_converter` package provide a simple way for create .pem files for your CSD's.
 
 ## Installation
 
@@ -17,11 +17,69 @@ composer require feimx/csd_converter
 
 ## Usage
 
+Firt need create a new instance of `CsdConverter`:
+
 ``` php
 $converter = new FeiMx\Csd\CsdConverter();
-echo $converter->echoPhrase('Hello, FeiMx!');
+echo $converter->serial_number();
+```
+
+Thats all, now you can access the cer info and save the news files to given path
+
+``` php
+echo $converter->serial_number;
+echo $converter->tax_id;
+echo $converter->valid_from; // instance of Carbon
+echo $converter->valid_to; // instance of Carbon
+echo $converter->getStatus();
+```
+
+`valid_from` and `valid_to` are instances of Carbon, so you can modify and format the dates:
+
+``` php
+echo $converter->valid_from->format('d/m/Y h:i a');
+echo $converter->valid_to->format('d/m/Y h:i a');
+```
+
+`getStatus()` returns a expired, valid or invalid status:
+
+``` php
+if($converter->getStatus() === CsdConverter::VALID){}
+if($converter->getStatus() === CsdConverter::INVALID){}
+if($converter->getStatus() === CsdConverter::EXPIRED){}
+
 ```
 
+You can verify if the files are a valid CSD:
+
+``` php
+var_dump($converter->isValidCsd()); // true or false
+```
+
+Now you can save the created files to a given path and assigne a optional filename:
+
+``` php
+$path = __DIR__.'/temp/';
+$filename = 'VALIDCSD';
+$converter->save($path, $filename);
+//this create 4 files:
+//__DIR__.'/temp/VALIDCSD.cer'
+//__DIR__.'/temp/VALIDCSD.cer.pem'
+//__DIR__.'/temp/VALIDCSD.key'
+//__DIR__.'/temp/VALIDCSD.key.pem'
+```
+
+And last, but not less important, you can encryp the converted key into des3:
+
+``` php
+$file = __DIR__.'/temp/VALIDCSD.key.pem';
+$password = 'secret';
+$converter->encryptKey($file, $password);
+//__DIR__.'/temp/VALIDCSD.enc.key'
+```
+
+_Note:_ This is very useful with third party provider such as Finkok for stamp the CFDI
+
 ### Testing
 
 ``` bash

composer.json

@@ -19,7 +19,8 @@
         }
     ],
     "require": {
-        "php": "^7.1"
+        "php": "^7.1",
+        "nesbot/carbon": "^1.32"
     },
     "require-dev": {
         "larapack/dd": "^1.0",

src/CsdConverter.php

@@ -0,0 +1,130 @@
+<?php
+
+namespace FeiMx\Csd;
+
+use Carbon\Carbon;
+use FeiMx\Csd\Strategies\Cer;
+use FeiMx\Csd\Strategies\Key;
+use InvalidArgumentException;
+use RuntimeException;
+
+class CsdConverter
+{
+    const VALID = 1;
+
+    const INVALID = 0;
+
+    const EXPIRED = -1;
+
+    public $cerStrategy;
+
+    public $keyStrategy;
+
+    public $data = [];
+
+    public $version;
+
+    public $serial_number;
+
+    public $tax_id;
+
+    public $name;
+
+    public $valid_from;
+
+    public $valid_to;
+
+    /**
+     * Create a new CsdConverter Instance.
+     */
+    public function __construct(string $cer_file, string $key_file, string $password)
+    {
+        $this->assertValidFile($cer_file);
+        $this->cerStrategy = new Cer($cer_file);
+
+        $this->assertValidFile($key_file);
+        $this->keyStrategy = new Key($key_file, $password);
+
+        $this->setData();
+    }
+
+    protected function assertValidFile(string $cer_file)
+    {
+        if (!file_exists($cer_file) || !is_readable($cer_file)) {
+            throw new InvalidArgumentException("File {$cer_file} does not exists or is not readable");
+        }
+    }
+
+    protected function setData()
+    {
+        $this->data = openssl_x509_parse($this->cerStrategy->pem_content, true);
+        if (!is_array($this->data)) {
+            throw new RuntimeException("Cannot parse the certificate file {$this->cerStrategy->filename}");
+        }
+
+        $this->mapDataToProps($this->data);
+    }
+
+    public function isValidCsd()
+    {
+        return isset($this->data['subject']['OU']) && !empty($this->data['subject']['OU']);
+    }
+
+    public function getStatus()
+    {
+        $now = Carbon::now();
+        if ($now > $this->valid_to) {
+            return self::EXPIRED;
+        }
+
+        if ($now < $this->valid_from) {
+            return self::INVALID;
+        }
+
+        if ($now > $this->valid_from && $now < $this->valid_to) {
+            return self::VALID;
+        }
+    }
+
+    protected function mapDataToProps($data)
+    {
+        $this->version = $data['version'];
+
+        $this->serial_number = $this->paserSeriaNumberHex($data['serialNumberHex']);
+
+        $this->tax_id = preg_split('/\s/', $data['subject']['x500UniqueIdentifier'])[0];
+
+        $this->name = $data['subject']['name'];
+
+        $this->valid_from = Carbon::createFromTimestamp($data['validFrom_time_t']);
+
+        $this->valid_to = Carbon::createFromTimestamp($data['validTo_time_t']);
+    }
+
+    public function paserSeriaNumberHex($serialNumber)
+    {
+        $parsedSerialNumber = '';
+        for ($i = 0; $i < strlen($serialNumber); ++$i) {
+            if (0 != $i % 2) {
+                $parsedSerialNumber .= substr($serialNumber, $i, 1);
+            }
+        }
+
+        return $parsedSerialNumber;
+    }
+
+    public function save(string $path, string $filename = null)
+    {
+        if (!is_dir($path)) {
+            mkdir($path, 0777, true);
+        }
+        $this->cerStrategy->save($path, $filename);
+
+        $this->keyStrategy->save($path, $filename);
+    }
+
+    public function encryptKey(string $pemfile, string $password)
+    {
+        return $this->keyStrategy->encrypt($pemfile, $password);
+    }
+}

src/CsdServiceProvider.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace FeiMx\Csd;
+
+use Illuminate\Support\ServiceProvider;
+
+class CsdServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap the application services.
+     */
+    public function boot()
+    {
+        if ($this->app->runningInConsole()) {
+        }
+    }
+
+    /**
+     * Register the application services.
+     */
+    public function register()
+    {
+    }
+}