"""distutils.pypirc

Provides the PyPIRCCommand class, the base class for the command classes
that uses .pypirc in the distutils.command package.
"""
import os
from configparser import ConfigParser

from distutils.cmd import Command

DEFAULT_PYPIRC = """\
[distutils]
index-servers =
pypi

[pypi]
username:%s
password:%s
"""

class PyPIRCCommand(Command):
"""Base command that knows how to handle the .pypirc file
"""
DEFAULT_REPOSITORY = 'https://pypi.python.org/pypi'
DEFAULT_REALM = 'pypi'
repository = None
realm = None

user_options = [
('repository=', 'r',
"url of repository [default: %s]" % \
DEFAULT_REPOSITORY),
('show-response', None,
'display full response text from server')]

boolean_options = ['show-response']

def _get_rc_file(self):
"""Returns rc file path."""
return os.path.join(os.path.expanduser('~'), '.pypirc')

def _store_pypirc(self, username, password):
"""Creates a default .pypirc file."""
rc = self._get_rc_file()
with os.fdopen(os.open(rc, os.O_CREAT | os.O_WRONLY, 0o600), 'w') as f:
f.write(DEFAULT_PYPIRC % (username, password))

def _read_pypirc(self):
"""Reads the .pypirc file."""
rc = self._get_rc_file()
if os.path.exists(rc):
self.announce('Using PyPI login from %s' % rc)
repository = self.repository or self.DEFAULT_REPOSITORY
realm = self.realm or self.DEFAULT_REALM

config = ConfigParser()
config.read(rc)
sections = config.sections()
if 'distutils' in sections:
# let's get the list of servers
index_servers = config.get('distutils', 'index-servers')
_servers = [server.strip() for server in
index_servers.split('\n')
if server.strip() != '']
if _servers == []:
# nothing set, let's try to get the default pypi
if 'pypi' in sections:
_servers = ['pypi']
else:
# the file is not properly defined, returning
# an empty dict
return {}
for server in _servers:
current = {'server': server}
current['username'] = config.get(server, 'username')

# optional params
for key, default in (('repository',
self.DEFAULT_REPOSITORY),
('realm', self.DEFAULT_REALM),
('password', None)):
if config.has_option(server, key):
current[key] = config.get(server, key)
else:
current[key] = default

# work around people having "repository" for the "pypi"
# section of their config set to the HTTP (rather than
# HTTPS) URL
if (server == 'pypi' and
repository in (self.DEFAULT_REPOSITORY, 'pypi')):
current['repository'] = self.DEFAULT_REPOSITORY
return current

if (current['server'] == repository or
current['repository'] == repository):
return current
elif 'server-login' in sections:
# old format
server = 'server-login'
if config.has_option(server, 'repository'):
repository = config.get(server, 'repository')
else:
repository = self.DEFAULT_REPOSITORY
return {'username': config.get(server, 'username'),
'password': config.get(server, 'password'),
'repository': repository,
'server': server,
'realm': self.DEFAULT_REALM}

return {}

def _read_pypi_response(self, response):
"""Read and decode a PyPI HTTP response."""
import cgi
content_type = response.getheader('content-type', 'text/plain')
encoding = cgi.parse_header(content_type)[1].get('charset', 'ascii')
return response.read().decode(encoding)

def initialize_options(self):
"""Initialize options."""
self.repository = None
self.realm = None
self.show_response = 0

def finalize_options(self):
"""Finalizes options."""
if self.repository is None:
self.repository = self.DEFAULT_REPOSITORY
if self.realm is None:
self.realm = self.DEFAULT_REALM