94 lines
3.4 KiB
Python
94 lines
3.4 KiB
Python
from django.utils.six.moves.urllib.parse import quote
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from django.utils.deprecation import MiddlewareMixin
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import json
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import pkg_resources
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try:
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import apt.cache as apt_cache
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except ImportError:
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apt_cache = None
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class VersionMiddleware(MiddlewareMixin):
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ENTROUVERT_PACKAGES = [
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'wcs',
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'wcs-au-quotidien',
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'authentic2',
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'authentic2-idp-cas',
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'authentic2-idp-ltpa',
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'authentic2-idp-oauth2',
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'polynum',
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'appli_project',
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'passerelle',
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'docbow',
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'calebasse',
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'python-entrouvert',
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'nose',
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'portail-citoyen',
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'portail-citoyen2',
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'portail-citoyen-announces',
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'django-cms-ajax-text-plugin',
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'eopayment',
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'compte-meyzieu',
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'compte-agglo-montpellier',
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'compte-orleans',
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'hobo',
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'django-cmsplugin-blurp',
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'combo',
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'lingo',
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'fargo',
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'welco',
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'chrono',
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]
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VERSION = 1
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_packages_version = None
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def __init__(self, application):
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self.application = application
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def __call__(self, environ, start_response):
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path = ''
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path += quote(environ.get('SCRIPT_NAME', ''))
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path += quote(environ.get('PATH_INFO', ''))
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method = environ.get('REQUEST_METHOD', 'GET')
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if method == 'GET' and (path == '/__version__' or
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path == '/__version__/'):
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packages_version = self.get_packages_version()
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start_response('200 Ok', [('content-type', 'application/json')])
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return [json.dumps(packages_version)]
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return self.application(environ, start_response)
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@classmethod
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def get_packages_version(cls):
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if cls._packages_version is not None:
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return cls._packages_version
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packages_version = {}
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# get versions from setuptools
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for distribution in tuple(pkg_resources.WorkingSet()):
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project_name = distribution.project_name
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version = distribution.version
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version = version.replace('+', '-') # for PEP440
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if project_name in cls.ENTROUVERT_PACKAGES:
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packages_version[project_name] = version
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# get versions from Debian packages
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debian_cache = None
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if apt_cache:
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try:
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debian_cache = apt_cache.Cache()
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except SystemError:
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pass
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if debian_cache:
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versions = [(p.name, p.installed.source_name, p.installed.version) \
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for p in debian_cache if p.installed and (
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(p.installed and p.installed.origins[0].origin == "Entr'ouvert") or
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(p.candidate and p.candidate.origins[0].origin == "Entr'ouvert"))]
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for name, project_name, version in versions:
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version = version.split('-')[0] # debian format == pythonversion-xxx
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version = version.replace('+', '-') # for PEP440
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# alert if a version is already present and is different
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if project_name in packages_version and version != packages_version[project_name].split('!!')[0]:
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packages_version[project_name] += '!!%s.deb:%s' % (name, version)
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else:
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packages_version[project_name] = version
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cls._packages_version = packages_version
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return packages_version
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