I have by now tested all the other major solutions and must say, Miled’s Social Login is, in my view, clearly the best among social login plugins, even though it has not seen any major upgrade in roughly a year (by the time of this review).

It offers integration at all relevant points (login, registration, BuddyPress, commenting e.a.; even provides syncing of harvested info to X-Profile-fields with custom mapping; how awesome is that?) and does have none of the hurdles and artificial limitations that similar plugins by other developers impose, often to force you into buying their «pro» version/s.

I have only one minor grievance with user creation in the Facebook process [but I’m not even sure that’s Miled’s ‘fault’, since many other users seem to be able to work around that just fine; it may very well be owed to some peculiarity in my setup which I simply haven’t been able to pinpoint yet].

So, even more kudos to @miled (y) after having checked out the competition and playing with quite a few of those (way more than I actually care/d for); I can wholeheartedly say: Start with this one. You may very well have to look no further.

wordpress-social-login\hybridauth\Hybrid\Providers
file Vkontakte.php
new code (замените на новый код):

<?php
/*!
* HybridAuth
* http://hybridauth.sourceforge.net | https://github.com/hybridauth/hybridauth
*  (c) 2009-2015 HybridAuth authors | hybridauth.sourceforge.net/licenses.html
*/

/**
 * Hybrid_Providers_Vkontakte provider adapter based on OAuth2 protocol
 *
 * added by guiltar | https://github.com/guiltar
 *
 * @property OAuth2Client $api
 */

class Hybrid_Providers_Vkontakte extends Hybrid_Provider_Model_OAuth2 {
    // default permissions
    public $scope = "email";

    // default user fields map
    public $fields = array(
        // Old that saved for backward-compability
      'identifier' => 'uid',
      'firstName' => 'first_name',
      'lastName' => 'last_name',
      'displayName' => 'screen_name',
      'gender' => 'sex',
      'photoURL' => 'photo_big',
      'home_town' => 'home_town',
      'profileURL' => 'domain',      // Will be converted in getUserByResponse()
        // New
      'nickname' => 'nickname',
      'bdate' => 'bdate',
      'timezone' => 'timezone',
      'photo_rec' => 'photo_rec',
      'domain' => 'domain',
      'photo_max' => 'photo_max',
      'home_phone' => 'home_phone',
      'city' => 'city',        // Will be converted in getUserByResponse()
      'country' => 'country',     // Will be converted in getUserByResponse()
    );

    // default VK API version
    public $version = '3.0';

    /**
     * IDp wrappers initializer
     */
    function initialize() {
        parent::initialize();

        // Provider api end-points
        $this->api->api_base_url = 'https://api.vk.com/method/';
        $this->api->authorize_url = "https://oauth.vk.com/authorize";
        $this->api->token_url = "https://oauth.vk.com/token";
        if (!empty($this->config['fields'])) {
            $this->fields = $this->config['fields'];
        }
        if (array_key_exists('version', $this->config)) {
            $this->version = $this->config['version'];
        }
        if (array_key_exists('v', $this->config)) {
            $this->version = $this->config['v'];
        }
    }

    function loginFinish() {
        $error = isset($_REQUEST['error']) ? $_REQUEST['error'] : "";

        // check for errors
        if ($error) {
            throw new Exception("Authentication failed! {$this->providerId} returned an error: $error", 5);
        }

        // try to authenticate user
        $code = isset($_REQUEST['code']) ? $_REQUEST['code'] : "";

        try {
            $response = $this->api->authenticate($code);
        } catch (Exception $e) {
            throw new Exception("User profile request failed! {$this->providerId} returned an error: $e", 6);
        }

        // check if authenticated
        if (empty($response->user_id) || !$this->api->access_token) {
            throw new Exception("Authentication failed! {$this->providerId} returned an invalid access token.", 5);
        }

        // store tokens
        $this->token("access_token", $this->api->access_token);
        $this->token("refresh_token", $this->api->refresh_token);
        $this->token("expires_in", $this->api->access_token_expires_in);
        $this->token("expires_at", $this->api->access_token_expires_at);

        // store user id. it is required for api access to Vkontakte
        Hybrid_Auth::storage()->set("hauth_session.{$this->providerId}.user_id", $response->user_id);
        Hybrid_Auth::storage()
          ->set("hauth_session.{$this->providerId}.user_email", !empty($response->email) ? $response->email : null);

        // set user connected locally
        $this->setUserConnected();
    }

    /**
     * load the user profile from the IDp api client
     */
    function getUserProfile() {

        // refresh tokens if needed
        $this->refreshToken();

        // Vkontakte requires user id, not just token for api access
        $params['uid'] = Hybrid_Auth::storage()->get("hauth_session.{$this->providerId}.user_id");
        $params['fields'] = implode(',', $this->fields);
        $params['v'] = $this->version;

        // ask vkontakte api for user infos
        $response = $this->api->api('getProfiles', 'GET', $params);

        if (isset($response->error)) {
            throw new Exception("User profile request failed! {$this->providerId} returned an error #{$response->error->error_code}: {$response->error->error_msg}", 6);
        } elseif (!isset($response->response[0]) || !isset($response->response[0]->uid)) {
            throw new Exception("User profile request failed! {$this->providerId} returned an invalid response.", 6);
        }

        // Fill datas
        $response = reset($response->response);
        foreach ($this->getUserByResponse($response, true) as $k => $v) {
            $this->user->profile->$k = $v;
        }

        // Additional data
        $this->user->profile->email = Hybrid_Auth::storage()->get("hauth_session.{$this->providerId}.user_email");
        return $this->user->profile;
    }

    /**
     * load the user contacts
     */
    function getUserContacts() {
        $params = array(
          'fields' => implode(',', $this->fields),
        );

        $response = $this->api->api('friends.get', 'GET', $params);

        if (empty($response) || empty($response->response)) {
            return array();
        }

        $contacts = array();
        foreach ($response->response as $item) {
            $contacts[] = $this->getUserByResponse($item);
        }

        return $contacts;
    }

    /**
     * @param object $response
     * @param bool $withAdditionalRequests True to get some full fields like 'city' or 'country'
     *                                       (requires additional responses to vk api!)
     *
     * @return \Hybrid_User_Contact
     */
    function getUserByResponse($response, $withAdditionalRequests = false) {
        $user = new Hybrid_User_Contact();

        foreach ($this->fields as $field => $map) {
            $user->$field = isset($response->$map) ? $response->$map : null;
        }

        if (!empty($user->profileURL)) {
            $user->profileURL = 'http://vk.com/' . $user->profileURL;
        }

        if (isset($user->gender)) {
            switch ($user->gender) {
                case 1:
                    $user->gender = 'female';
                    break;

                case 2:
                    $user->gender = 'male';
                    break;

                default:
                    $user->gender = null;
                    break;
            }
        }

        if (!empty($user->bdate)) {
            $birthday = explode('.', $user->bdate);
            switch (count($birthday)) {
                case 3:
                    $user->birthDay = (int)$birthday[0];
                    $user->birthMonth = (int)$birthday[1];
                    $user->birthYear = (int)$birthday[2];
                    break;

                case 2:
                    $user->birthDay = (int)$birthday[0];
                    $user->birthMonth = (int)$birthday[1];
                    break;
            }
        }

        if (!empty($user->city) && $withAdditionalRequests) {
            $params = array('city_ids' => $user->city);
            $cities = (array) $this->api->api('database.getCitiesById', 'GET', $params);
            $city = reset($cities);

            if (is_array($city)) {
                $city = reset($city);
            }

            if (is_object($city) || is_string($city)) {
                $user->city = isset($city->name) ? $city->name : null;
            }
        }

        if (!empty($user->country) && $withAdditionalRequests) {
            $params = array('country_ids' => $user->country);
            $countries = (array) $this->api->api('database.getCountriesById', 'GET', $params);
            $country = reset($countries);

            if (is_array($country)) {
                $country = reset($country);
            }

            if (is_object($country) || is_string($country)) {
                $user->country = isset($country->name) ? $country->name : null;
            }
        }

        return $user;
    }
}

So it is not clear from the start whether you can use this with custom registration/logins. I couldn’t figure out a way, so I emailed them. No response. Nothing. Simple question.

Unless you want a plugin where a basic use case is not clearly defined up front and you don’t hear back about it, do not use/purchase this.

There are better options out there.

Amazing plugin, saved my hundreds hours of work.

All the 1 star ratings are from people who can’t follow simple instructions and configure it properly.

Thank you, very good job

The performance of this plugin is absolutely shocking. According to P3, the plugin accounted for 43% of total page loading time.