From 2a9aa204a48f02409f704a57acb7965b40abeff5 Mon Sep 17 00:00:00 2001
From: chime3 <chidev0104@gmail.com>
Date: Thu, 19 Dec 2024 04:37:22 -0700
Subject: [PATCH] feat: github connector auth

---
 package.json                       |   1 +
 src/providers/github/index.ts      | 121 +++++++++++++++++++++++++++++
 src/providers/github/interfaces.ts |  11 +++
 src/serverconfig.example.json      |   8 ++
 yarn.lock                          |   7 ++
 5 files changed, 148 insertions(+)
 create mode 100644 src/providers/github/index.ts
 create mode 100644 src/providers/github/interfaces.ts

diff --git a/package.json b/package.json
index 2bbca8c9..b56e7745 100644
--- a/package.json
+++ b/package.json
@@ -83,6 +83,7 @@
     "officeparser": "^4.1.1",
     "passport": "^0.5.2",
     "passport-facebook": "^3.0.0",
+    "passport-github2": "^0.1.12",
     "passport-google-oauth20": "^2.0.0",
     "pdf-parse": "^1.1.1",
     "sanitize-html": "^2.13.1",
diff --git a/src/providers/github/index.ts b/src/providers/github/index.ts
new file mode 100644
index 00000000..72d6b4ee
--- /dev/null
+++ b/src/providers/github/index.ts
@@ -0,0 +1,121 @@
+import { Request, Response } from "express";
+import Base from "../BaseProvider";
+import { ConnectionCallbackResponse, PassportProfile } from "../../interfaces";
+import { GithubProviderConfig } from "./interfaces";
+
+const passport = require("passport");
+const GitHubStrategy = require("passport-github2");
+
+export default class GitHubProvider extends Base {
+    protected config: GithubProviderConfig;
+
+    public getProviderName() {
+        return "github";
+    }
+
+    public getProviderLabel() {
+        return "Github";
+    }
+
+    public getProviderApplicationUrl() {
+        return "https://github.com/";
+    }
+
+    public syncHandlers(): any[] {
+        return [];
+    }
+
+    public getScopes(): string[] {
+        return ["read:user", "user:email", "repo"];
+    }
+
+    public async connect(req: Request, res: Response, next: any): Promise<any> {
+        this.init();
+
+        const auth = passport.authenticate("github", {
+            scope: this.getScopes(),
+        });
+
+        return auth(req, res, next);
+    }
+
+    public async callback(req: Request, res: Response, next: any): Promise<ConnectionCallbackResponse> {
+        this.init();
+
+        return new Promise((resolve, reject) => {
+            passport.authenticate(
+                "github",
+                {
+                    failureRedirect: "/failure/github",
+                    failureMessage: true,
+                },
+                (err: any, user: any) => {
+                    if (err) {
+                        return reject(err);
+                    }
+                    if (!user) {
+                        return reject(new Error("No user data returned from GitHub"));
+                    }
+
+                    const profile = this.formatProfile(user.profile);
+
+                    resolve({
+                        id: profile.id,
+                        accessToken: user.accessToken,
+                        refreshToken: user.refreshToken,
+                        profile: {
+                            username: profile.connectionProfile.username,
+                            ...profile,
+                        },
+                    });
+                }
+            )(req, res, next);
+        });
+    }
+
+    public async getApi(accessToken?: string, refreshToken?: string): Promise<any> {
+        // Placeholder for GitHub API integration
+    }
+
+    public init() {
+        passport.use(
+            new GitHubStrategy(
+                {
+                    clientID: this.config.clientId,
+                    clientSecret: this.config.clientSecret,
+                    callbackURL: this.config.callbackUrl,
+                },
+                (accessToken: string, refreshToken: string, profile: any, cb: any) => {
+                    return cb(null, {
+                        accessToken,
+                        refreshToken,
+                        profile,
+                    });
+                }
+            )
+        );
+    }
+
+    private formatProfile(githubProfile: any): PassportProfile {
+        const email = githubProfile.emails && githubProfile.emails.length
+            ? githubProfile.emails[0].value
+            : null;
+
+        return {
+            id: githubProfile.id,
+            provider: this.getProviderName(),
+            displayName: githubProfile.displayName || email || githubProfile.username,
+            name: {
+                familyName: githubProfile.name?.split(" ").slice(-1)[0] || "",
+                givenName: githubProfile.name?.split(" ").slice(0, -1).join(" ") || "",
+            },
+            photos: githubProfile.photos || [],
+            connectionProfile: {
+                username: email ? email.split("@")[0] : githubProfile.username,
+                readableId: email || githubProfile.username,
+                email: email,
+                verified: githubProfile._json?.email_verified || false,
+            },
+        };
+    }
+}
diff --git a/src/providers/github/interfaces.ts b/src/providers/github/interfaces.ts
new file mode 100644
index 00000000..94ce2426
--- /dev/null
+++ b/src/providers/github/interfaces.ts
@@ -0,0 +1,11 @@
+import { BaseHandlerConfig, BaseProviderConfig } from "../../../src/interfaces";
+
+export interface GithubProviderConfig extends BaseProviderConfig {
+    clientId: string;
+    clientSecret: string;
+    callbackUrl: string;
+}
+
+export interface GithubHandlerConfig extends BaseHandlerConfig {
+    batchSize: number
+}
\ No newline at end of file
diff --git a/src/serverconfig.example.json b/src/serverconfig.example.json
index a94f74a3..1e553233 100644
--- a/src/serverconfig.example.json
+++ b/src/serverconfig.example.json
@@ -129,6 +129,14 @@
             "messagesPerGroupLimit": 100,
             "maxGroupSize": 50,
             "useDbPos": true
+        },
+        "github": {
+            "status": "active",
+            "label": "Github",
+            "clientId": "",
+            "clientSecret": "",
+            "batchSize": 50,            
+            "maxSyncLoops": 1
         }
     },
     "providerDefaults": {
diff --git a/yarn.lock b/yarn.lock
index 486e0afb..a5282d7f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6737,6 +6737,13 @@ passport-facebook@^3.0.0:
   dependencies:
     passport-oauth2 "1.x.x"
 
+passport-github2@^0.1.12:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/passport-github2/-/passport-github2-0.1.12.tgz#a72ebff4fa52a35bc2c71122dcf470d1116f772c"
+  integrity sha512-3nPUCc7ttF/3HSP/k9sAXjz3SkGv5Nki84I05kSQPo01Jqq1NzJACgMblCK0fGcv9pKCG/KXU3AJRDGLqHLoIw==
+  dependencies:
+    passport-oauth2 "1.x.x"
+
 passport-google-oauth20@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/passport-google-oauth20/-/passport-google-oauth20-2.0.0.tgz#0d241b2d21ebd3dc7f2b60669ec4d587e3a674ef"