116 lines
3.6 KiB
Markdown
116 lines
3.6 KiB
Markdown
To implement HTTPS using Let's Encrypt and ngrok while modifying your Flask application, follow these structured steps:
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## Step 1: Install and Set Up ngrok
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1. **Download ngrok**:
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- Go to the [ngrok website](https://ngrok.com/download) and download the appropriate version for your OS.
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- Install ngrok by following the instructions on the site.
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2. **Authenticate ngrok**:
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- Sign up for a free account at ngrok.com.
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- After signing up, you’ll receive an authtoken. Run the following command to set it up:
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```bash
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ngrok config add-authtoken <your_auth_token>
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```
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## Step 2: Modify Flask to Accept HTTPS
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Update your Flask application to use ngrok to tunnel HTTPS traffic:
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1. **Change `run_flask()` to bind to HTTP**:
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This is so ngrok can handle the SSL termination. Update the endpoint by removing the `ssl_context`:
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```python
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def run_flask():
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app.run(host="0.0.0.0", port=8888)
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```
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2. **Expose the Flask app via ngrok**:
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You can run ngrok to expose your Flask app by executing:
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```bash
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ngrok http 8888
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```
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This will give you a public HTTPS URL that tunnels to your local Flask app.
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## Step 3: Modify the Development Environment (devenv.nix)
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You’ll need to add the ngrok installation to your `devenv.nix` configuration, if it's not already installed.
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1. **Edit `devenv.nix`**:
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```nix
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{ pkgs ? import <nixpkgs> {} }:
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pkgs.mkShell {
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buildInputs = [
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pkgs.ngrok
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];
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shellHook = ''
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# Set up ngrok to run automatically
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ngrok http 8888 &
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'';
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}
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```
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This snippet sets up ngrok to run in the background whenever you start your development environment.
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## Step 4: Implement the PKI Chain in `geturl.py`
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To implement an HTTPS PKI chain, consider using the Let's Encrypt certificate. For local development, you can't use Let's Encrypt directly without a publicly reachable domain, but you can still prepare your code as if you're using secure connections.
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1. **Modify `geturl.py`**:
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Assuming your application logic has not changed, implement a function to fetch the ngrok URL:
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```python
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import os
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import requests
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import threading
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import time
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def get_ngrok_url():
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response = requests.get("http://localhost:4040/api/tunnels")
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tunnels = response.json()["tunnels"]
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for tunnel in tunnels:
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if tunnel["name"] == "http":
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return tunnel["public_url"]
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return None
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def create_playlist():
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# Your existing code to create a playlist
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...
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def run_flask():
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app.run(host="0.0.0.0", port=8888)
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def main():
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# Start Flask in a background thread
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flask_thread = threading.Thread(target=run_flask, daemon=True)
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flask_thread.start()
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# Wait for ngrok to be ready
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time.sleep(5) # Allow some time for ngrok to initialize
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ngrok_url = get_ngrok_url()
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print(f"Ngrok URL: {ngrok_url}")
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print("Please authorize access via the following URL:", sp_oauth.get_authorize_url())
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while not os.path.exists("access_token.txt"):
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time.sleep(1)
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playlist_url = create_playlist()
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print(f"Playlist URL returned: {playlist_url}")
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if __name__ == "__main__":
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main()
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```
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In this code:
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- `get_ngrok_url()` fetches the ngrok tunnel URL dynamically.
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- You can then safely use this URL to inform other services of your HTTPS endpoint.
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## Summary
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This setup will let you run a local Flask application using HTTPS through an ngrok tunnel. You process the playlist creation and output the URL correctly while working in a secure environment. If you later transition to production, you can directly implement Let's Encrypt for your domain, maintaining the same architecture with minimal changes.
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