Pearsend

A simple CLI client for peer-to-peer file or message sending. Written in Python.

Features

• It supports file or message of size upto about 8.85 PeB (1 PiB ~ 10^6 GiB)!.
• Protection against transmission error using CRC32 checksum.
• Comes with CLI (command-line argument) and Interactive mode, both!

Installation

Install it using pip

$ pip3 install pearsend

Usage Examples

Command-line Mode

Help Text

sumit@HAL9000:~$ pearsend -h
usage: pearsend [-h] [-i] [-f FILEPATH] [--host HOST] [-p PORT]
                   [-m MESSAGE]
                   {send,receive}
positional arguments:
  {send,receive}        Whether to send or receive
optional arguments:
  -h, --help            show this help message and exit
  -i, --interactive     If the program is to be run in interactive mode
  -f FILEPATH, --filepath FILEPATH
                        Path of the file to be sent or to save incoming data
                        to
  --host HOST           Address of the source or target machine
  -p PORT, --port PORT  Port for listening on or sending to
  -m MESSAGE, --message MESSAGE
                        Message to send

Sending text message

Receiver

sumit@HAL9000:~$ pearsend receive -p 5000
[*] Listening for connections on: 10.194.52.135:5000
[*] Connection from : 10.194.52.135:47804
[*] The incoming data is > 
b'Hello HAL!'

Sender

sumit@HAL9000:~$ pearsend send --host 10.194.52.135 -m "Hello HAL!"
[*] Sent message succesfully!

Sending binary file

Receiver

sumit@HAL9000:~$ pearsend receive -p 5000 -f recd.png
[*] Listening for connections on: 10.194.52.135:5000
[*] Connection from : 10.194.52.135:47808
[*] Incoming data saved to recd.png

Sender

sumit@HAL9000:~$ pearsend send --host 10.194.52.135 -f image.png
[*] Sent message succesfully!

Interactive Mode

Sending text message

Receiver

sumit@HAL9000:~$ pearsend receive -i
[?] Port to listen on: 
[?] File to save the incoming data to. Leave blank to output to terminal: 
[*] Listening for connections on: 10.194.52.135:5000
[*] Connection from : 10.194.52.135:36240
[*] The incoming data is > 
b'Hello HAL!'

Sender

sumit@HAL9000:~$ pearsend send -i
[?] The address of the target machine: 10.194.52.135
[?] Enter the port to connect to: 
[?] The file to send. Leave blank for text message: 
[?] Enter the message: Hello HAL!
[*] Sent message succesfully!

Sending binary file

Receiver

sumit@HAL9000:~$ pearsend receive -i
[?] Port to listen on: 
[?] File to save the incoming data to. Leave blank to output to terminal: recd.jpg
[*] Listening for connections on: 10.194.52.135:5000
[*] Connection from : 10.194.52.135:36242
[*] Incoming data saved to recd.jpg

Sender

sumit@HAL9000:~$ pearsend send -i
[?] The address of the target machine: 10.194.52.135
[?] Enter the port to connect to: 
[?] The file to send. Leave blank for text message: image.jpg
[*] Sent message succesfully!