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href / yubikey_otp_to_serial.py
Created August 30, 2016 11:27
Calculate the Yubikey serial number from the OTP
# adapted from Java:
# https://github.com/Yubico/yubikey-salesforce-client/blob/
# e38e46ee90296a852374a8b744555e99d16b6ca7/src/classes/Modhex.cls
ALPHABET = 'cbdefghijklnrtuv'
def yubikey_otp_to_serial(otp):
""" Takes a Yubikey OTP and calculates the serial number of the key.
@href
href / integration.py
Created December 9, 2016 09:32
An exploration of transaction integration for PonyORM
import transaction
from pony.orm import Database, PrimaryKey, Required
from pony.orm.core import DBSessionContextManager
from pony.orm.core import commit, flush, rollback
class CustomDBSessionContextManager(DBSessionContextManager):
def _enter(self, *args, **kwargs):
@href
href / cloudbleed.py
Last active February 24, 2017 08:37
Checks exported 1password urls against the domains affected by Cloudbleed.
#!/usr/bin/python3
""" Checks exported 1password urls against the domains affected by Cloudbleed.
Usage:
1. Export the 1password urls (as csv containing *only* the url column!!).
2. Store the exported file in the current directory as 'export.csv'.
3. Run python3 ./cloudbleed.py
@href
href / app.py
Last active September 28, 2017 09:13
Internal redirects in Morepath
""" Simple redirects for renamed paths using a generic redirect model.
For static paths:
@App.path('/old-path')
class OldPathRedirect(Redirect):
to = '/new-path'
For wildcard paths (e.g. /old-pages/my-page to /new-pages/my-page):
@href
href / migrate_puppet.py
Created May 24, 2018 07:35
Example of our internal use of Suitable
import click
from suitable import Api
from textwrap import dedent
@click.command()
@click.argument('hostname')
def upgrade_puppet(hostname):
""" Upgrades a puppet client from puppet 3.8 to 4.x. """
@href
href / install-suitable-with-mitogen.sh
Created May 25, 2018 08:15
Installs Suitable with Mitogen using Python 2.7 for Testing
#!/usr/bin/env bash
path="$1"
set -eu
if [ -z "$path" ]; then
echo "Please pass an install directory"
exit 1
fi
@href
href / generate-form.py
Last active July 9, 2020 12:55
Generates an S3 HTML Upload Form for cloudscale.ch Object Storage
#!/usr/bin/env python
# This script generates an example HTML form that can directly upload files to
# an S3 bucket at cloudscale.ch.
#
# Based on the following work:
#
# - http://archive.is/fZdSu
# - http://archive.is/NXQno
#
# Requires Python 3 and boto3 to work:
@href
href / README.md
Last active October 17, 2022 07:18
Self-signed certificates support for macOS keychain with any CPython

When trying to connect to an endpoint with a certificate of a custom certificate authority, stored in the macOS keychain, Python generally raises errors like SSL: CERTIFICATE_VERIFY_FAILED.

They can be avoided by exporting the certs locally, and pointing modules like urllib2 or requests to it:

security export -t certs -f pemseq -k keychain.login > ~/keychain.pem
security export -t certs -f pemseq -k /Library/Keychains/System.keychain >> ~/keychain.pem
security export -t certs -f pemseq -k /System/Library/Keychains/SystemRootCertificates.keychain >> ~/keychain.pem

export REQUESTS_CA_BUNDLE="$HOME/keychain.pem"