Add GitHub OAuth2 adapter for AdminForth

Author: SerVitasik

.gitignore

@@ -0,0 +1,3 @@
+node_modules
+custom/node_modules
+dist

index.ts

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+import type { OAuth2Adapter } from "adminforth";
+
+export class AdminForthAdapterGithubOauth2 implements OAuth2Adapter {
+    private clientID: string;
+    private clientSecret: string;
+    private redirectUri: string;
+  
+    constructor(options: {
+      clientID: string;
+      clientSecret: string;
+      redirectUri: string;
+    }) {
+      this.clientID = options.clientID;
+      this.clientSecret = options.clientSecret;
+      this.redirectUri = options.redirectUri;
+    }
+  
+    getAuthUrl(): string {
+      const params = new URLSearchParams({
+        client_id: this.clientID,
+        redirect_uri: this.redirectUri,
+        scope: 'user:email read:user',
+        allow_signup: 'true',
+        provider: this.constructor.name
+      });
+      const url = `https://github.com/login/oauth/authorize?${params.toString()}`;
+      return url;
+    }
+  
+    async getTokenFromCode(code: string): Promise<{ email: string; name?: string; picture?: string }> {
+      console.log('Getting token from code:', code);
+      
+      // Exchange code for token
+      const tokenResponse = await fetch('https://github.com/login/oauth/access_token', {
+        method: 'POST',
+        headers: { 
+          'Accept': 'application/json',
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+          code,
+          client_id: this.clientID,
+          client_secret: this.clientSecret,
+          redirect_uri: this.redirectUri,
+        }),
+      });
+  
+      const tokenData = await tokenResponse.json();
+  
+      if (tokenData.error) {
+        console.error('Token error:', tokenData);
+        throw new Error(tokenData.error_description || tokenData.error);
+      }
+  
+      // Get user info using access token
+      const userResponse = await fetch('https://api.github.com/user', {
+        headers: { 
+          'Authorization': `Bearer ${tokenData.access_token}`,
+          'Accept': 'application/vnd.github.v3+json'
+        },
+      });
+  
+      const userData = await userResponse.json();
+  
+      if (userData.error) {
+        throw new Error(userData.error_description || userData.error);
+      }
+
+      // If email is not public, fetch email separately
+      if (!userData.email) {
+        const emailResponse = await fetch('https://api.github.com/user/emails', {
+          headers: { 
+            'Authorization': `Bearer ${tokenData.access_token}`,
+            'Accept': 'application/vnd.github.v3+json'
+          },
+        });
+        
+        const emails = await emailResponse.json();
+        const primaryEmail = emails.find(email => email.primary);
+        userData.email = primaryEmail?.email;
+      }
+  
+      return {
+        email: userData.email,
+      };
+    }
+    getIcon(): string {
+      return `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 98 98"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z" fill="#24292f"/></svg>`;
+    }
+}

package-lock.json

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+{
+  "name": "adminforth-google-oauth-adapter",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": ""
+}