120 lines
3.5 KiB
PHP
120 lines
3.5 KiB
PHP
<?php namespace Zoomyboy\Social\FormWidgets;
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use \Session;
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use Backend\Classes\FormWidgetBase;
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use GuzzleHttp\Client;
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use Zoomyboy\Social\Models\Page;
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use Zoomyboy\Social\Models\Setting;
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/**
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* FacebookLogin Form Widget
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*/
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class FacebookLogin extends FormWidgetBase
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{
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/**
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* @inheritDoc
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*/
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protected $defaultAlias = 'zoomyboy_social_facebook_login';
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/**
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* @inheritDoc
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*/
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public function init()
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{
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if (request()->has('code') && request()->query('state') == Session::get('facebook_auth_state')) {
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$this->authenticate();
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$this->storePages();
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}
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}
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public function authenticate(): void
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{
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$client = $this->client();
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$response = $client->get('/v11.0/oauth/access_token', ['query' => [
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'client_id' => Setting::get('facebook_client_id'),
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'redirect_uri' => $this->redirectUri(),
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'client_secret' => Setting::get('facebook_client_secret'),
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'code' => request()->query('code')
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]]);
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$accessToken = json_decode((string) $response->getBody())->access_token;
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$response = $client->get('/v11.0/oauth/access_token', ['query' => [
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'grant_type' => 'fb_exchange_token',
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'client_id' => Setting::get('facebook_client_id'),
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'client_secret' => Setting::get('facebook_client_secret'),
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'fb_exchange_token' => $accessToken,
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]]);
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$accessToken = json_decode((string) $response->getBody())->access_token;
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Setting::set('facebook_access_token', $accessToken);
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}
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public function storePages(): void
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{
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$client = $this->client($auth = true);
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$response = $client->get('/me');
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$userId = json_decode((string) $response->getBody())->id;
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$response = $client->get('/v11.0/'.$userId.'/accounts');
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$response = json_decode((string) $response->getBody());
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foreach ($response->data as $page) {
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Page::updateOrCreate(
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['remote_id' => $page->id],
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['type' => 'facebook', 'remote_id' => $page->id, 'access_token' => $page->access_token, 'name' => $page->name],
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);
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}
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}
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public function render()
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{
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$this->prepareVars();
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return $this->makePartial('facebooklogin');
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}
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public function redirectUri(): string
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{
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return env('FACEBOOK_REDIRECT_URI', url()->current());
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}
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/**
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* Prepares the form widget view data
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*/
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public function prepareVars()
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{
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$state = str_random('20');
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Session::put('facebook_auth_state', $state);
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$this->vars['name'] = $this->formField->getName();
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$this->vars['value'] = $this->getLoadValue();
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$this->vars['model'] = $this->model;
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$this->vars['client_id'] = Setting::get('facebook_client_id');
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$this->vars['redirect_url'] = $this->redirectUri();;
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$this->vars['state'] = $state;
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}
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public function loadAssets()
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{
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$this->addCss('css/facebooklogin.css', 'zoomyboy.social');
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$this->addJs('js/facebooklogin.js', 'zoomyboy.social');
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}
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public function getSaveValue($value)
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{
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return $value;
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}
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private function client(bool $auth = false): Client
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{
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$query = $auth
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? ['access_token' => Setting::get('facebook_access_token')]
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: [];
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return new Client([
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'base_uri' => 'https://graph.facebook.com',
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'query' => $query,
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]);
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}
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}
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