PHP – Page 2 – Nikolay Nikolov blog

Symfony Security Authorization

There are several way to make authorization on your site with Symfony.
First is in your security.yml on the same level as firewalls tag:

	access_control:
	- { path: ^/admin, roles: ROLE_USER }

This will block all users that don’t have ‘ROLE_USER’ to admin page.

Second option is to use Controller. Inside Method insert:

	if(!$this->get('security.authorization_checker')->isGranted('ROLE_ADMIN')){
	throw $this->createAccessDeniedException('GET OUT!');
	}

Or like this:

$this->denyAccessUnlessGranted('ROLE_ADMIN');

This will deny access to all users that don’t have ‘ROLE_ADMIN’ to this method.

You can also use annotations:

	/**
	* @Security("is_granted('ROLE_ADMIN')")
	*/

Annotations also work if you add them to the Class. So they will block all users that don’t have ‘ROLE_ADMIN’ to this class.

Continue reading “Symfony Security Authorization”

Symfony Security Authentication

Create Entity named User

	<?php

	namespace AppBundle\Entity;

	use Symfony\Component\Security\Core\User\UserInterface;
	use Doctrine\ORM\Mapping as ORM;

	/**
	* @ORM\Entity
	* @ORM\Table(name="user")
	*/
	class User implements UserInterface
	{
	/**
	* @ORM\Id
	* @ORM\GeneratedValue(strategy="AUTO")
	* @ORM\Column(type="integer")
	*/
	private $id;

	/**
	* @ORM\Column(type="string", unique=true)
	*/
	private $email;

	/**
	* @ORM\Column(type="string")
	*/
	private $password;

	private $plainPassword;

	public function getUsername()
	{
	return $this->email;
	}

	public function getRoles()
	{
	return ['ROLE_USER'];
	}

	public function getPassword()
	{
	return $this->password;
	}

	public function getSalt()
	{
	}

	public function eraseCredentials()
	{
	$this->plainPassword = null;
	}

	/**
	* @param mixed $email
	*/
	public function setEmail($email)
	{
	$this->email = $email;
	}

	/**
	* @param mixed $password
	*/
	public function setPassword($password)
	{
	$this->password = $password;
	}

	/**
	* @return mixed
	*/
	public function getPlainPassword()
	{
	return $this->plainPassword;
	}

	/**
	* @param mixed $plainPassword
	*/
	public function setPlainPassword($plainPassword)
	{
	$this->plainPassword = $plainPassword;
	//This should be here to set value for password to activate doctrine listeners
	$this->password = null;
	}



	}

and generate migration:

	#php bin/console doctrine:migrations:diff
	#php bin/console doctrine:migrations:migrate

Continue reading “Symfony Security Authentication”

PHP CURL Function Example

This function is populated with all needed data for curl to be executed

	function get_curl($site_url){
	$ch = curl_init();

	curl_setopt($ch, CURLOPT_URL, $site_url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
	curl_setopt($ch, CURLOPT_ENCODING, 'gzip, deflate');

	$headers = array();
	$headers[] = "Accept-Encoding: gzip, deflate, sdch";
	$headers[] = "Accept-Language: en-US,en;q=0.8";
	$headers[] = "Upgrade-Insecure-Requests: 1";
	$headers[] = "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36";
	$headers[] = "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8";
	$headers[] = "Referer: $site_url";
	//Set a cookie if needed (you can set other values)
	$headers[] = "Cookie: D_SID=185.196.133.50:u147oywWqvEJoD/GIlY10erXbeio1QIKGdi6Vo6/HVo; D_IID=0108BE8F-6C68-31CF-9B9D-4308308DB3A6; D_UID=5A4BCE68-9FD2-3A70-B1DF-376B7D77FD4B; D_ZID=248B7EFC-E23A-3F71-A675-764EA373AEC6; D_ZUID=4DFFC8BD-0AD9-3DE0-94AE-60A57D49736A; D_HID=07EDD9E4-1EDF-3EE3-9D52-B67B5952F6EC";
	$headers[] = "Connection: keep-alive";
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

	$result = curl_exec($ch);

	if (curl_error($ch)) {
	$output['status'] = '404';
	$output['msge'] = curl_error($ch);
	} else {
	$output['status'] = 'ok';
	$output['html'] = $result;
	}

	curl_close ($ch);
	return $output;
	}

Send Array to API with POST

	function send_curl(array $array)
	{

	$api = 'https://localhost/services/api';
	$action = 'test';
	$password = 'TestPass';

	$ch = curl_init($api);
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(
	[
	'password' => $password ,
	'data' => $array,
	'action' => $action,
	]
	));
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

	$serverOutput = curl_exec($ch);
	curl_close($ch);

	return $serverOutput;
	}

CodeIgniter – custom 404 error page

application/config/routes.php

$route['404_override'] = 'my404';

application/controllers/My404.php

	<?php
	class My404 extends CI_Controller
	{
	public function __construct()
	{
	parent::__construct();
	}

	public function index()
	{
	$this->output->set_status_header('404');
	$data['content'] = 'error_404'; // View name
	$this->load->view('index', $data);//loading in my template
	}
	}

CodeIgniter Session Error – Operation not Permitted

On some hostings you can receive this error.

	A PHP Error was encountered

	Severity: Warning

	Message: unlink(/tmp/ci_session0189a7f1c86eb18fb70afcfedc2d5040e9c23146): Operation not permitted

	Filename: drivers/Session_files_driver.php

To fix this go to application > config > config.php and edit this line:

$config['sess_save_path'] =  BASEPATH . 'cache/';

Laravel first steps

Hello, this article is for beginners and will show basic functions.

Installation of Laravel

To begin with instalation we need composer. In console write the following.

composer create-project --prefer-dist laravel/laravel NameOfTheProject

What is artisan

Artisan is the name of the command-line interface included with Laravel. It provides a number of helpful commands for your use while developing your application. It is driven by the powerful Symfony Console component.

Continue reading “Laravel first steps”

Laravel on shared hosting

I will show you not the fastest but easiest way to move Laravel project to shared hosting. You need to be sure that you are using PHP version >= 5.6.4.

First step

First connect to your FTP and create folder outside “public_html”. You can use any name but in this example I will use (“Laravel”) for the name of this folder.

Move everything except “public” folder from your Laravel project to your newly created folder on shared hosting. It will take some time!

In “public_html” folder you need to move files from “public” folder in your Laravel project.

Open index.php file and change the paths to autoload.php and app.php files. They should point to files in the Laravel folder.
Continue reading “Laravel on shared hosting”

Cron Job for Codeigniter

In my practice there are two simple solutions.

First:

0 0 1 * * php /home/USER/public_html/index.php NAME-OF-CONTROLLER NAME-OF-METHOD

example -> php /home/User/public_html/index.php TestCron index

Second:

0 0 1 * * curl –silent URL-OF-THE-SCRIPT

example -> curl –silent http://maratonkata.nikolaynikolov.net/TestCron

Codeigniter 3 – Fast setup

Download and extract codeigniter. In main folder create another folder named assets. There will be additional files for css, js and more.

Setup configuration files. Go to application/config:
– in autoload.php

	$autoload['libraries'] = array('database','session');
	$autoload['helper'] = array('url','form');

– in config.php

	$config['base_url'] = 'http://www.example.com/';
	$config['index_page'] = '';
	$config['encryption_key'] = 'someEncryptionKey';
	$config['sess_save_path'] = sys_get_temp_dir(); //Fix problems with session

– in database.php

	'username' => 'root',
	'password' => 'rootPassword',
	'database' => 'DatabaseName',

– in routes.php

$route['default_controller'] = 'Main_controller';

Step 2 Create Main_controller file in application/controllers
Easiest way is to copy and rename Welcome.php

Step 3 Create .htaccess file in main folder. This is a must for routing!

	RewriteEngine On

	RewriteCond %{HTTP_HOST} ^my-domain.com [NC]
	RewriteRule ^(.*)$ http://www.my-domain.com/$1 [L,R=301]

	RewriteCond %{THE_REQUEST} ^[A-Z]+\ /index\.php(/[^\ ]*)?\ HTTP/
	RewriteRule ^index\.php(/(.*))?$ http://www.my-domain.com/$2 [R=301,L]

	RewriteCond %{REQUEST_FILENAME} !-f
	RewriteCond %{REQUEST_FILENAME} !-d
	RewriteRule ^(.*)$ index.php?/$1 [L]

Multilanguage CodeIgniter 3.0

In this tutorial we will implement multilanguage to CodeIgniter.

Site Default Language
Open the application/config/config.php file and specify the site’s default language.

$config['language']  = 'bulgarian';  //Language you want to be default

Language Files

The language files must be named with _lang suffix. For example, if you want to create a file containing site’s message translation then the file name might be message_lang.php.

Insert those files into the application/language/ directory with separate sub-directories for each language (for example, english, bulgarian, etc.).
Continue reading “Multilanguage CodeIgniter 3.0”