Compression tool for PKPass archives.
AirPress does compression in runtime memory without creating temporary files or directories, which is handy for server-side implementation.
From PyPI:
pip install airpress
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 and compress.
Export your developer certificate as .p12 file and convert it into a pair of cert and key .pem files:
openssl pkcs12 -in "Certificates.p12" -clcerts -nokeys -out certificate.pem
openssl pkcs12 -in "Certificates.p12" -nocerts -out key.pem
You will be asked for an export password (or export phrase), you may leave it blank or provide a passphrase. It's this value that you later should supply to PKPass compressor (or leave blank).
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))