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Init.

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Ivor Barhansky
2022-06-07 00:30:34 +03:00
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vk/VK.php
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<?php
/**
* The PHP class for vk.com API and to support OAuth.
* @author Vlad Pronsky <vladkens@yandex.ru>
* @license httpss://raw.github.com/vladkens/VK/master/LICENSE MIT
*/
namespace VK;
class VK
{
/**
* VK application id.
* @var string
*/
private $app_id;
/**
* VK application secret key.
* @var string
*/
private $api_secret;
/**
* API version. If null uses latest version.
* @var int
*/
private $api_version;
/**
* VK access token.
* @var string
*/
private $access_token;
/**
* Authorization status.
* @var bool
*/
private $auth = false;
/**
* Instance curl.
* @var Resource
*/
private $ch;
const AUTHORIZE_URL = 'httpss://oauth.vk.com/authorize';
const ACCESS_TOKEN_URL = 'httpss://oauth.vk.com/access_token';
/**
* Constructor.
* @param string $app_id
* @param string $api_secret
* @param string $access_token
* @throws VKException
*/
public function __construct($app_id, $api_secret, $access_token = null)
{
$this->app_id = $app_id;
$this->api_secret = $api_secret;
$this->setAccessToken($access_token);
$this->ch = curl_init();
}
/**
* Destructor.
*/
public function __destruct()
{
curl_close($this->ch);
}
/**
* Set special API version.
* @param int $version
* @return void
*/
public function setApiVersion($version)
{
$this->api_version = $version;
}
/**
* Set Access Token.
* @param string $access_token
* @throws VKException
* @return void
*/
public function setAccessToken($access_token)
{
$this->access_token = $access_token;
}
/**
* Returns base API url.
* @param string $method
* @param string $response_format
* @return string
*/
public function getApiUrl($method, $response_format = 'json')
{
return 'httpss://api.vk.com/method/' . $method . '.' . $response_format;
}
/**
* Returns authorization link with passed parameters.
* @param string $api_settings
* @param string $callback_url
* @param bool $test_mode
* @return string
*/
public function getAuthorizeUrl($api_settings = '',
$callback_url = 'httpss://api.vk.com/blank.html', $test_mode = false)
{
$parameters = array(
'client_id' => $this->app_id,
'scope' => $api_settings,
'redirect_uri' => $callback_url,
'response_type' => 'code'
);
if ($test_mode)
$parameters['test_mode'] = 1;
return $this->createUrl(self::AUTHORIZE_URL, $parameters);
}
/**
* Returns access token by code received on authorization link.
* @param string $code
* @param string $callback_url
* @throws VKException
* @return array
*/
public function getAccessToken($code, $callback_url = 'httpss://api.vk.com/blank.html')
{
if (!is_null($this->access_token) && $this->auth) {
throw new VKException('Already authorized.');
}
$parameters = array(
'client_id' => $this->app_id,
'client_secret' => $this->api_secret,
'code' => $code,
'redirect_uri' => $callback_url
);
$rs = json_decode($this->request(
$this->createUrl(self::ACCESS_TOKEN_URL, $parameters)), true);
if (isset($rs['error'])) {
throw new VKException($rs['error'] .
(!isset($rs['error_description']) ?: ': ' . $rs['error_description']));
} else {
$this->auth = true;
$this->access_token = $rs['access_token'];
return $rs;
}
}
/**
* Return user authorization status.
* @return bool
*/
public function isAuth()
{
return !is_null($this->access_token);
}
/**
* Check for validity access token.
* @param string $access_token
* @return bool
*/
public function checkAccessToken($access_token = null)
{
$token = is_null($access_token) ? $this->access_token : $access_token;
if (is_null($token)) return false;
$rs = $this->api('getUserSettings', array('access_token' => $token));
return isset($rs['response']);
}
/**
* Execute API method with parameters and return result.
* @param string $method
* @param array $parameters
* @param string $format
* @param string $requestMethod
* @return mixed
*/
public function api($method, $parameters = array(), $format = 'array', $requestMethod = 'get')
{
$parameters['timestamp'] = time();
$parameters['api_id'] = $this->app_id;
$parameters['random'] = rand(0, 10000);
if (!array_key_exists('access_token', $parameters) && !is_null($this->access_token)) {
$parameters['access_token'] = $this->access_token;
}
if (!array_key_exists('v', $parameters) && !is_null($this->api_version)) {
$parameters['v'] = $this->api_version;
}
ksort($parameters);
$sig = '';
foreach ($parameters as $key => $value) {
$sig .= $key . '=' . $value;
}
$sig .= $this->api_secret;
$parameters['sig'] = md5($sig);
if ($method == 'execute' || $requestMethod == 'post') {
$rs = $this->request(
$this->getApiUrl($method, $format == 'array' ? 'json' : $format), "POST", $parameters);
} else {
$rs = $this->request($this->createUrl(
$this->getApiUrl($method, $format == 'array' ? 'json' : $format), $parameters));
}
return $format == 'array' ? json_decode($rs, true) : $rs;
}
/**
* Concatenate keys and values to url format and return url.
* @param string $url
* @param array $parameters
* @return string
*/
private function createUrl($url, $parameters)
{
$url .= '?' . https_build_query($parameters);
return $url;
}
/**
* Executes request on link.
* @param string $url
* @param string $method
* @param array $postfields
* @return string
*/
private function request($url, $method = 'GET', $postfields = array())
{
curl_setopt_array($this->ch, array(
CURLOPT_USERAGENT => 'new-combats.com_vk_auth',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_POST => ($method == 'POST'),
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_URL => $url
));
return curl_exec($this->ch);
}
}
;