A frustration-free compression tool for PKPass files
From PyPI:
pip install airpress
AirPress is a tool to sign and compress Apple PKPass archives. Compression and signature occur in runtime memory without creating temporary files or directories.
from airpress import PKPass
# PKPass compressor operates on `bytes` objects as input/output
p = PKPass(
('icon.png', bytes(...)),
('logo.png', bytes(...)),
('pass.json', bytes(...)),
...
)
# `password` argument is optional
p.sign(cert=bytes(...), key=bytes(...), password=bytes(...))
# Calling `bytes()` on signed `PKPass` will compress it into zip archive and return its `bytes` representation.
_ = bytes(p) In most cases you're likely to return pkpass as http response and bytes object is exactly what you need.
It's up to you how to handle .pkpass archive from this point.
PKPass will raise human-readable errors in case something is wrong with pass package you're trying to sign.
This example shows how to read locally stored assets as bytes objects, compress pkpass archive
and save it to script's parent directory.
import os
from airpress import PKPass
icon = open(os.path.join(os.path.dirname(__file__), '...your_path_to/icon.png'), 'rb').read()
icon_2x = open(os.path.join(os.path.dirname(__file__), '...your_path_to/icon@2x.png'), 'rb').read()
logo = open(os.path.join(os.path.dirname(__file__), '...your_path_to/logo.png'), 'rb').read()
logo_2x = open(os.path.join(os.path.dirname(__file__), '...your_path_to/logo@2x.png'), 'rb').read()
pass_json = open(os.path.join(os.path.dirname(__file__), '...your_path_to/pass.json'), 'rb').read()
key = open(os.path.join(os.path.dirname(__file__), '...your_path_to/key.pem'), 'rb').read()
cert = open(os.path.join(os.path.dirname(__file__), '...your_path_to/certificate.pem'), 'rb').read()
password = bytes('your_password_123', 'utf8')
p = PKPass(
('icon.png', icon),
('icon@2x.png', icon_2x),
('logo.png', logo),
('logo@2x.png', logo_2x),
('pass.json', pass_json),
)
p.sign(cert=cert, key=key, password=password)
with open('pass.pkpass', 'wb') as file:
file.write(bytes(p))