Initial Implementation of LINE OAuth

app/config/providers.php

@@ -171,6 +171,16 @@ return [ // Ordered by ABC.
         'beta' => false,
         'mock' => false,
     ],
+    'line' => [
+        'name' => 'Line',
+        'developers' => 'https://developers.line.biz/en/docs/line-login/integrate-line-login/',
+        'icon' => 'icon-line',
+        'enabled' => true,
+        'sandbox' => false,
+        'form' => false,
+        'beta' => false,
+        'mock' => false,
+    ],
     'linkedin' => [
         'name' => 'LinkedIn',
         'developers' => 'https://developer.linkedin.com/',

src/Appwrite/Auth/OAuth2/Line.php

@@ -0,0 +1,140 @@
+<?php
+
+namespace Appwrite\Auth\OAuth2;
+
+use Appwrite\Auth\OAuth2;
+
+class Line extends OAuth2
+{
+    /**
+     * @var array
+     */
+    protected array $user = [];
+
+    /**
+     * @var array
+     */
+    protected array $tokens = [];
+
+    /**
+     * @var array
+     */
+    protected array $scopes = [
+        'profile',
+        'email',
+    ];
+
+    /**
+     * @return string
+     */
+    public function getName(): string
+    {
+        return 'line';
+    }
+
+    /**
+     * @return string
+     */
+    public function getLoginURL(): string
+    {
+        return 'https://access.line.me/oauth2/v2.1/authorize?' . \http_build_query([
+            'response_type' => 'code',
+            'client_id' => $this->appID,
+            'redirect_uri' => $this->callback,
+            'state' => \json_encode($this->state),
+            'scope' => \implode('%20', $this->getScopes())
+        ]);
+    }
+
+    /**
+     * @param string $code
+     *
+     * @return array
+     */
+    protected function getTokens(string $code): array
+    {
+        if (empty($this->tokens)) {
+            $this->tokens = \json_decode($this->request(
+                'POST',
+                'https://api.line.me/oauth2/v2.1/token',
+                ['Content-Type: application/x-www-form-urlencoded'],
+                \http_build_query([
+                    'grant_type' => 'authorization_code',
+                    'code' => $code,
+                    'client_id' => $this->appID,
+                    'client_secret' => $this->appSecret,
+                    'redirect_uri' => $this->callback
+                ])
+            ), true);
+        }
+        return $this->tokens;
+    }
+    
+    /**
+     * @param string $refreshToken
+     *
+     * @return array
+     */
+    public function refreshTokens(string $refreshToken): array
+    {
+        return [];
+    }
+
+    /**
+     * @param string $accessToken
+     *
+     * @return string
+     */
+    public function getUserID(string $accessToken): string
+    {
+        $user = $this->getUser($accessToken);
+
+        return '';
+    }
+
+    /**
+     * @param string $accessToken
+     *
+     * @return string
+     */
+    public function getUserEmail(string $accessToken): string
+    {
+
+        return '';
+    }
+
+    /**
+     * Check if the OAuth email is verified
+     *
+     * @link https://docs.github.com/en/rest/users/emails#list-email-addresses-for-the-authenticated-user
+     *
+     * @param string $accessToken
+     *
+     * @return bool
+     */
+    public function isEmailVerified(string $accessToken): bool
+    {
+        return false;
+    }
+
+    /**
+     * @param string $accessToken
+     *
+     * @return string
+     */
+    public function getUserName(string $accessToken): string
+    {
+        return '';
+    }
+
+    /**
+     * @param string $accessToken
+     *
+     * @return array
+     */
+    protected function getUser(string $accessToken): array
+    {
+
+        return '';
+    }
+}