{Ninja-Shell}

Filename: //lib//python3/dist-packages/cloudinit//sources//DataSourceBigstep.py

# Copyright (C) 2015-2016 Bigstep Cloud Ltd.
#
# Author: Alexandru Sirbu <alexandru.sirbu@bigstep.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

import errno
import json

from cloudinit import sources
from cloudinit import url_helper
from cloudinit import util

class DataSourceBigstep(sources.DataSource):

dsname = 'Bigstep'

def __init__(self, sys_cfg, distro, paths):
        sources.DataSource.__init__(self, sys_cfg, distro, paths)
        self.metadata = {}
        self.vendordata_raw = ""
        self.userdata_raw = ""

def _get_data(self, apply_filter=False):
        url = get_url_from_file()
        if url is None:
            return False
        response = url_helper.readurl(url)
        decoded = json.loads(response.contents.decode())
        self.metadata = decoded["metadata"]
        self.vendordata_raw = decoded["vendordata_raw"]
        self.userdata_raw = decoded["userdata_raw"]
        return True

def _get_subplatform(self):
        """Return the subplatform metadata source details."""
        return 'metadata (%s)' % get_url_from_file()

def get_url_from_file():
    try:
        content = util.load_file("/var/lib/cloud/data/seed/bigstep/url")
    except IOError as e:
        # If the file doesn't exist, then the server probably isn't a Bigstep
        # instance; otherwise, another problem exists which needs investigation
        if e.errno == errno.ENOENT:
            return None
        else:
            raise
    return content

# Used to match classes to dependencies
datasources = [
    (DataSourceBigstep, (sources.DEP_FILESYSTEM, sources.DEP_NETWORK)),
]

# Return a list of data sources that match this set of dependencies
def get_datasource_list(depends):
    return sources.list_from_depends(depends, datasources)

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