A quick-and-dirty Named Data Networking (NDN) Repo implementation using PyNDN.

• Required: Python 3.6+
• Required: PyNDN - A Named Data Networking client library in Python
• Required: NFD - Named Data Networking Forwarding Daemon
• Required: Protobuf - Serializing structured data
• Optional: LevelDB - Fast key-value storage library
• Optional: MongoDB - A document-oriented database
• Optional: PyMongo - MongoDB Python interface

For macOS and Ubuntu:

git clone https://github.com/JonnyKong/NDN-Repo.git

# 1) Create virtual env
python3 -m venv ./venv
./venv/bin/python -m pip install -r requirements.txt
source ./venv/bin/activate

# 2) Compile protobuf files
cd src/command
make

# 3) Start a repo instance
python main.py

# Insert a file into the repo
cd src && python putfile.py -r <repo_name> -f <path_to_file> -n <filename_in_repo>

# Fetch a file from the repo
cd src && python getfile.py -r <repo_name> -n <filename_in_repo>

• TCP Bulk Insertion functionality, tested using NDNCERT
• Control Center basic Web interface
• Control Center backend: list Data, delete Data, display up-to-date Repo status, commands (stop, start, restart)
• HTTP Get Data Demo program (http_get_data.py in directory src)
• Add an instructions page
• Insert check command
• Delete command
• Delete check command
• Add command validator for handles
• Currently we have issues with register prefix. We want to fix this as soon as possible.
• Finalize database implementation for Google Cloud DataStore. (MongoDB is not very convenient to configure)
• Now we have HTTP get Data endpoint. We might want to add a TCP get Data. This introduces design questions, e.g. Do we use port 7376 for Data fetching, or we use a different port?
• Configure a PyNDN-Repo Docker for easier deployment
• Nail down protocol design
• Implement Trust Schema for Data and command verification
• Add more demo programs, and improve documentations

1. Download and start MongoDB Daemon. You can download it here

Ubuntu:bin yufengzh$ sudo ./mongod

2. Start repo-daemon, which will automatically start Repo

Ubuntu:dev yufengzh$ cd NDN-Repo/
Ubuntu:NDN-Repo yufengzh$ source venv/bin/activate
(venv) Ubuntu:NDN-Repo yufengzh$ python repo_daemon.py

3. Start control-center

(venv) Ubuntu:NDN-Repo yufengzh$ python control_center.py

4. Go to control center http://localhost:1234 on your Web browser, where you can add dummy Data, see what Data is in the Repo, delete Data, start/stop/restart Repo, test Repo, etc.