init

app/Support/SocialiteProviders/DropboxProvider.php

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+<?php
+
+namespace App\Support\SocialiteProviders;
+
+use GuzzleHttp\Exception\GuzzleException;
+use Illuminate\Support\Arr;
+use Laravel\Socialite\Two\AbstractProvider;
+use Laravel\Socialite\Two\ProviderInterface;
+use Laravel\Socialite\Two\User;
+
+class DropboxProvider extends AbstractProvider implements ProviderInterface
+{
+    /**
+     * Unique Provider Identifier.
+     */
+    public const IDENTIFIER = 'DROPBOX';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $scopeSeparator = ' ';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAuthUrl($state): string
+    {
+        return $this->buildAuthUrlFromBase('https://www.dropbox.com/oauth2/authorize', $state);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getTokenUrl(): string
+    {
+        return 'https://api.dropboxapi.com/oauth2/token';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getTokenFields($code): array
+    {
+        return array_merge(parent::getTokenFields($code), [
+            'grant_type' => 'authorization_code',
+        ]);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws GuzzleException
+     */
+    protected function getUserByToken($token)
+    {
+        $response = $this->getHttpClient()->post('https://api.dropboxapi.com/2/users/get_current_account', [
+            'headers' => [
+                'Authorization' => 'Bearer '.$token,
+            ],
+        ]);
+
+        return json_decode($response->getBody(), true);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function mapUserToObject(array $user): User
+    {
+        return (new User)->setRaw($user)->map([
+            'id' => $user['account_id'],
+            'nickname' => null,
+            'name' => $user['name']['display_name'],
+            'email' => $user['email'],
+            'avatar' => Arr::get($user, 'profile_photo_url'),
+        ]);
+    }
+}