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# ndpi
This package contains Python bindings for nDPI. nDPI is an Open and Extensible LGPLv3 Deep Packet Inspection Library.
**ndpi** is implemented using [**CFFI**][cffi] (out-of-line API mode). Consequently, it is fast and [**PyPy**][pypy]
compliant.
## Installation
### Build nDPI
``` bash
git clone --branch dev https://github.com/ntop/nDPI.git
cd nDPI
./autogen.sh
./configure
make
sudo make install
```
### Install ndpi package
``` bash
cd python
python3 -m pip install --upgrade pip
python3 -m install -r dev_requirements.txt
python3 -m pip install .
```
## Usage
### API
``` python
from ndpi import NDPI, NDPIFlow
nDPI = NDPI()
# You per flow processing here
# ...
ndpi_flow = NDPIFlow()
nDPI.process_packet(ndpi_flow, ip_bytes, time_ms)
nDPI.giveup(ndpi_flow) # If you want to guess it instead (DPI fallback)
```
### Example Application
[ndpi_example.py][ndpi_example] is provided to demonstrate how **ndpi** can be integrated within your Python application.
``` bash
Using nDPI 4.3.0-3532-8dd70b70
usage: ndpi_example.py [-h] [-u] input
positional arguments:
input input pcap file path
optional arguments:
-h, --help show this help message and exit
-u, --include-unknowns
```
Example with a Skype capture file
``` bash
python3 ndpi_example.py -u ../tests/pcap/skype.pcap
```
## Related projects
The provided example is for demo purposes only, For additional features (live capture, multiplatform support,
multiprocessing, ML based classification, system visibility, etc.), please check nDPI based
framework, [**NFStream**][nfstream].
## License
This project is licensed under the LGPLv3 License - see the [**License**][license] file for details.
[license]: https://github.com/ntop/nDPI/blob/dev/COPYING
[cffi]: https://cffi.readthedocs.io/en/latest/
[pypy]: https://www.pypy.org/
[nfstream]: https://github.com/nfstream/nfstream
[ndpi_example]: https://github.com/ntop/nDPI/blob/dev/python/ndpi_example.py
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