feat(github): add github integration

README.md

@@ -2,8 +2,8 @@
 [![GitHub Workflow Status (CI)](https://img.shields.io/github/actions/workflow/status/lizardbyte/support-bot/ci.yml.svg?branch=master&label=CI%20build&logo=github&style=for-the-badge)](https://github.com/LizardByte/support-bot/actions/workflows/ci.yml?query=branch%3Amaster)
 [![Codecov](https://img.shields.io/codecov/c/gh/LizardByte/support-bot.svg?token=900Q93P1DE&style=for-the-badge&logo=codecov&label=codecov)](https://app.codecov.io/gh/LizardByte/support-bot)
 
-Support bot written in python to help manage LizardByte communities. The current focus is discord and reddit, but other
-platforms such as GitHub discussions/issues could be added.
+Support bot written in python to help manage LizardByte communities. The current focus is Discord and Reddit, but other
+platforms such as GitHub discussions/issues might be added in the future.
 
 
 ## Overview
@@ -31,6 +31,9 @@ platforms such as GitHub discussions/issues could be added.
 | variable                | required | default                                              | description                                                   |
 |-------------------------|----------|------------------------------------------------------|---------------------------------------------------------------|
 | DISCORD_BOT_TOKEN       | True     | `None`                                               | Token from Bot page on discord developer portal.              |
+| DISCORD_CLIENT_ID       | True     | `None`                                               | Discord OAuth2 client id.                                     |
+| DISCORD_CLIENT_SECRET   | True     | `None`                                               | Discord OAuth2 client secret.                                 |
+| DISCORD_REDIRECT_URI    | False    | `https://localhost:8080/discord/callback`            | The redirect uri for OAuth2. Must be publicly accessible.     |
 | DAILY_TASKS             | False    | `true`                                               | Daily tasks on or off.                                        |
 | DAILY_RELEASES          | False    | `true`                                               | Send a message for each game released on this day in history. |
 | DAILY_CHANNEL_ID        | False    | `None`                                               | Required if daily_tasks is enabled.                           |
@@ -41,11 +44,6 @@ platforms such as GitHub discussions/issues could be added.
 | SUPPORT_COMMANDS_REPO   | False    | `https://github.com/LizardByte/support-bot-commands` | Repository for support commands.                              |
 | SUPPORT_COMMANDS_BRANCH | False    | `master`                                             | Branch for support commands.                                  |
 
-* Running bot:
-  * `python -m src`
-* Invite bot to server:
-  * `https://discord.com/api/oauth2/authorize?client_id=<the client id of the bot>&permissions=8&scope=bot%20applications.commands`
-
 
 ### Reddit
 
@@ -62,7 +60,13 @@ platforms such as GitHub discussions/issues could be added.
   | DISCORD_WEBHOOK    | False    | None    | URL of webhook to send discord notifications to                         |
   | GRAVATAR_EMAIL     | False    | None    | Gravatar email address to get avatar from                               |
   | REDDIT_USERNAME    | True     | None    | Reddit username                                                         |
-* | REDDIT_PASSWORD    | True     | None    | Reddit password                                                         |
+  | REDDIT_PASSWORD    | True     | None    | Reddit password                                                         |
+
+### Start
 
-* Running bot:
-  * `python -m src`
+```bash
+python -m src
+```
+
+* Invite bot to server:
+  * `https://discord.com/api/oauth2/authorize?client_id=<the client id of the bot>&permissions=8&scope=bot%20applications.commands`

requirements.txt

@@ -7,3 +7,4 @@ praw==7.8.1
 py-cord==2.6.1
 python-dotenv==1.0.1
 requests==2.32.3
+requests-oauthlib==2.0.0

src/__main__.py

@@ -1,5 +1,4 @@
 # standard imports
-import os
 import time
 
 # development imports
@@ -8,33 +7,28 @@
 
 # local imports
 if True:  # hack for flake8
+    from src.common import globals
     from src.discord import bot as d_bot
-    from src import keep_alive
+    from src.common import webapp
     from src.reddit import bot as r_bot
 
 
 def main():
-    # to run in replit
-    try:
-        os.environ['REPL_SLUG']
-    except KeyError:
-        pass  # not running in replit
-    else:
-        keep_alive.keep_alive()  # Start the web server
+    webapp.start()  # Start the web server
 
-    discord_bot = d_bot.Bot()
-    discord_bot.start_threaded()  # Start the discord bot
+    globals.DISCORD_BOT = d_bot.Bot()
+    globals.DISCORD_BOT.start_threaded()  # Start the discord bot
 
-    reddit_bot = r_bot.Bot()
-    reddit_bot.start_threaded()  # Start the reddit bot
+    globals.REDDIT_BOT = r_bot.Bot()
+    globals.REDDIT_BOT.start_threaded()  # Start the reddit bot
 
     try:
-        while discord_bot.bot_thread.is_alive() or reddit_bot.bot_thread.is_alive():
+        while globals.DISCORD_BOT.bot_thread.is_alive() or globals.REDDIT_BOT.bot_thread.is_alive():
             time.sleep(0.5)
     except KeyboardInterrupt:
         print("Keyboard Interrupt Detected")
-        discord_bot.stop()
-        reddit_bot.stop()
+        globals.DISCORD_BOT.stop()
+        globals.REDDIT_BOT.stop()
 
 
 if __name__ == '__main__':  # pragma: no cover

src/common/crypto.py

@@ -0,0 +1,69 @@
+# standard imports
+import os
+
+# lib imports
+from cryptography import x509
+from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.asymmetric import rsa
+from cryptography.hazmat.primitives.serialization import Encoding, PrivateFormat, NoEncryption
+from datetime import datetime, timedelta, UTC
+
+# local imports
+from src.common import common
+
+CERT_FILE = os.path.join(common.data_dir, "cert.pem")
+KEY_FILE = os.path.join(common.data_dir, "key.pem")
+
+
+def check_expiration(cert_path: str) -> int:
+    with open(cert_path, "rb") as cert_file:
+        cert_data = cert_file.read()
+        cert = x509.load_pem_x509_certificate(cert_data, default_backend())
+    expiry_date = cert.not_valid_after_utc
+    return (expiry_date - datetime.now(UTC)).days
+
+
+def generate_certificate():
+    private_key = rsa.generate_private_key(
+        public_exponent=65537,
+        key_size=4096,
+    )
+    subject = issuer = x509.Name([
+        x509.NameAttribute(x509.NameOID.COMMON_NAME, u"localhost"),
+    ])
+    cert = x509.CertificateBuilder().subject_name(
+        subject
+    ).issuer_name(
+        issuer
+    ).public_key(
+        private_key.public_key()
+    ).serial_number(
+        x509.random_serial_number()
+    ).not_valid_before(
+        datetime.now(UTC)
+    ).not_valid_after(
+        datetime.now(UTC) + timedelta(days=365)
+    ).sign(private_key, hashes.SHA256())
+
+    with open(KEY_FILE, "wb") as f:
+        f.write(private_key.private_bytes(
+            encoding=Encoding.PEM,
+            format=PrivateFormat.TraditionalOpenSSL,
+            encryption_algorithm=NoEncryption(),
+        ))
+
+    with open(CERT_FILE, "wb") as f:
+        f.write(cert.public_bytes(Encoding.PEM))
+
+
+def initialize_certificate() -> tuple[str, str]:
+    print("Initializing SSL certificate")
+    if os.path.exists(CERT_FILE) and os.path.exists(KEY_FILE):
+        cert_expires_in = check_expiration(CERT_FILE)
+        print(f"Certificate expires in {cert_expires_in} days.")
+        if cert_expires_in >= 90:
+            return CERT_FILE, KEY_FILE
+    print("Generating new certificate")
+    generate_certificate()
+    return CERT_FILE, KEY_FILE

src/common/database.py

@@ -0,0 +1,22 @@
+# standard imports
+import shelve
+import threading
+
+
+class Database:
+    def __init__(self, db_path):
+        self.db_path = db_path
+        self.lock = threading.Lock()
+
+    def __enter__(self):
+        self.lock.acquire()
+        self.db = shelve.open(self.db_path, writeback=True)
+        return self.db
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.sync()
+        self.db.close()
+        self.lock.release()
+
+    def sync(self):
+        self.db.sync()

src/common/globals.py

@@ -0,0 +1,2 @@
+DISCORD_BOT = None
+REDDIT_BOT = None

src/common/webapp.py

@@ -0,0 +1,150 @@
+# standard imports
+import asyncio
+import os
+from threading import Thread
+from typing import Tuple
+
+# lib imports
+import discord
+from flask import Flask, jsonify, redirect, request, Response
+from requests_oauthlib import OAuth2Session
+
+# local imports
+from src.common import crypto
+from src.common import globals
+
+
+DISCORD_CLIENT_ID = os.getenv("DISCORD_CLIENT_ID")
+DISCORD_CLIENT_SECRET = os.getenv("DISCORD_CLIENT_SECRET")
+DISCORD_REDIRECT_URI = os.getenv("DISCORD_REDIRECT_URI", "https://localhost:8080/discord/callback")
+
+app = Flask('LizardByte-bot')
+
+
+@app.route('/')
+def main():
+    return "LizardByte-bot is live!"
+
+
+@app.route("/discord/callback")
+def discord_callback():
+    # get all active states from the global state manager
+    with globals.DISCORD_BOT.db as db:
+        active_states = db['oauth_states']
+
+    discord_oauth = OAuth2Session(DISCORD_CLIENT_ID, redirect_uri=DISCORD_REDIRECT_URI)
+    token = discord_oauth.fetch_token("https://discord.com/api/oauth2/token",
+                                      client_secret=DISCORD_CLIENT_SECRET,
+                                      authorization_response=request.url)
+
+    # Fetch the user's Discord profile
+    response = discord_oauth.get("https://discord.com/api/users/@me")
+    discord_user = response.json()
+
+    # if the user is not in the active states, return an error
+    if discord_user['id'] not in active_states:
+        return "Invalid state"
+
+    # remove the user from the active states
+    del active_states[discord_user['id']]
+
+    # Fetch the user's connected accounts
+    connections_response = discord_oauth.get("https://discord.com/api/users/@me/connections")
+    connections = connections_response.json()
+
+    with globals.DISCORD_BOT.db as db:
+        db['discord_users'] = db.get('discord_users', {})
+        db['discord_users'][discord_user['id']] = {
+            'discord_username': discord_user['username'],
+            'discord_global_name': discord_user['global_name'],
+            'github_id': None,
+            'github_username': None,
+            'token': token,  # TODO: should we store the token at all?
+        }
+
+        for connection in connections:
+            if connection['type'] == 'github':
+                db['discord_users'][discord_user['id']]['github_id'] = connection['id']
+                db['discord_users'][discord_user['id']]['github_username'] = connection['name']
+
+    # Redirect to our main website
+    return redirect("https://app.lizardbyte.dev")
+
+
+@app.route("/webhook/<source>", methods=["POST"])
+def webhook(source: str) -> Tuple[Response, int]:
+    """
+    Process webhooks from various sources.
+
+    * GitHub sponsors: https://github.com/sponsors/LizardByte/dashboard/webhooks
+    * GitHub status: https://www.githubstatus.com
+
+    Parameters
+    ----------
+    source : str
+        The source of the webhook (e.g., 'github_sponsors', 'github_status').
+
+    Returns
+    -------
+    flask.Response
+        Response to the webhook request
+    """
+    valid_sources = ["github_sponsors", "github_status"]
+
+    if source not in valid_sources:
+        return jsonify({"status": "error", "message": "Invalid source"}), 400
+
+    print(f"received webhook from {source}")
+    data = request.json
+    print(f"received webhook data: \n{data}")
+
+    if source == "github_sponsors":
+        # ensure the secret matches
+        # if data['secret'] != os.getenv("GITHUB_SPONSORS_WEBHOOK_SECRET_KEY"):
+        #     return jsonify({"status": "error", "message": "Invalid secret"}), 400
+
+        # process the webhook data
+        if data['action'] == "created":
+            message = f'New GitHub sponsor: {data["sponsorship"]["sponsor"]["login"]}'
+
+            # create a discord embed
+            embed = discord.Embed(
+                author=discord.EmbedAuthor(
+                    name=data["sponsorship"]["sponsor"]["login"],
+                    url=data["sponsorship"]["sponsor"]["url"],
+                    icon_url=data["sponsorship"]["sponsor"]["avatar_url"],
+                ),
+                color=0x00ff00,
+                description=message,
+                footer=discord.EmbedFooter(
+                    text=f"Sponsored at {data['sponsorship']['created_at']}",
+                ),
+                title="New GitHub Sponsor",
+            )
+            message = asyncio.run_coroutine_threadsafe(
+                globals.DISCORD_BOT.send_message_to_channel(
+                    channel_id=os.getenv("DISCORD_SPONSORS_CHANNEL_ID"),
+                    embeds=[embed],
+                ), globals.DISCORD_BOT.loop)
+            message.result()  # wait for the message to be sent
+
+    return jsonify({"status": "success"}), 200
+
+
+def run():
+    cert_file, key_file = crypto.initialize_certificate()
+
+    app.run(
+        host="0.0.0.0",
+        port=8080,
+        ssl_context=(cert_file, key_file)
+    )
+
+
+def start():
+    server = Thread(
+        name="Flask",
+        daemon=True,
+        target=run,
+    )
+    server.start()