Remove dangling metadata.py from previous commit.

Change-Id: I6ca06c2bfa5efef9be4daff9419b1a3841207b8c

muranodashboard/panel/services/metadata.py

@@ -1,122 +0,0 @@
-#    Copyright (c) 2013 Mirantis, Inc.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-import tempfile
-from django.conf import settings
-import os.path
-import os
-import tarfile
-import logging
-import shutil
-import hashlib
-
-
-CHUNK_SIZE = 1 << 20  # 1MB
-ARCHIVE_PKG_NAME = 'archive.tar.gz'
-ARCHIVE_SUBDIR = 'service_forms'
-CACHE_DIR = getattr(settings, 'UI_METADATA_CACHE_DIR',
-                    os.path.join(os.path.dirname(os.path.abspath(__file__)),
-                                 '../../cache/'))
-if not os.path.exists(CACHE_DIR):
-    os.mkdir(CACHE_DIR)
-
-ARCHIVE_PKG_PATH = os.path.join(CACHE_DIR, ARCHIVE_PKG_NAME)
-ARCHIVE_SUBDIR_PATH = os.path.join(CACHE_DIR, ARCHIVE_SUBDIR)
-
-log = logging.getLogger(__name__)
-
-
-from horizon.exceptions import ServiceCatalogException
-from openstack_dashboard.api.base import url_for
-from metadataclient.v1.client import Client
-
-
-def get_endpoint(request):
-    # prefer location specified in settings for dev purposes
-    endpoint = getattr(settings, 'MURANO_METADATA_URL', None)
-
-    if not endpoint:
-        try:
-            endpoint = url_for(request, 'murano-metadata')
-        except ServiceCatalogException:
-            endpoint = 'http://localhost:5000'
-            log.warning(
-                'Murano Metadata API location could not be found in Service '
-                'Catalog, using default: {0}'.format(endpoint))
-    return endpoint
-
-
-def metadataclient(request):
-    endpoint = get_endpoint(request)
-    token_id = request.user.token.id
-    log.debug('Murano::Client <Url: {0}, '
-              'TokenId: {1}>'.format(endpoint, token_id))
-
-    return Client(endpoint=endpoint, token=token_id)
-
-
-def get_hash(archive_path):
-    """Calculate SHA1-hash of archive file.
-
-    SHA-1 take a bit more time than MD5 (see http://tinyurl.com/kpj5jy7),
-    but is more secure.
-    """
-    if os.path.exists(archive_path):
-        sha1 = hashlib.sha1()
-        with open(archive_path) as f:
-            buf = f.read(CHUNK_SIZE)
-            while buf:
-                sha1.update(buf)
-                buf = f.read(CHUNK_SIZE)
-        hsum = sha1.hexdigest()
-        log.debug("Archive '{0}' has hash-sum {1}".format(archive_path, hsum))
-        return hsum
-    else:
-        log.info("Archive '{0}' doesn't exist, no hash to calculate".format(
-            archive_path))
-        return None
-
-
-def unpack_ui_package(archive_path):
-    if not tarfile.is_tarfile(archive_path):
-        raise RuntimeError("{0} is not valid tarfile!".format(archive_path))
-    dst_dir = os.path.dirname(os.path.abspath(archive_path))
-    with tarfile.open(archive_path, 'r:gz') as tar:
-        tar.extractall(path=dst_dir)
-    return os.path.join(dst_dir, ARCHIVE_SUBDIR)
-
-
-def get_ui_metadata(request):
-    """Returns directory with unpacked definitions provided by Metadata
-    Repository at `endpoint' URL or, if it was not found or some error has
-    occurred, returns None.
-    """
-    log.debug("Retrieving metadata from Repository")
-    response, body_iter = metadataclient(request).metadata_client.get_ui_data(
-        get_hash(ARCHIVE_PKG_PATH))
-    code = response.status
-    if code == 200:
-        with tempfile.NamedTemporaryFile(delete=False) as out:
-            for chunk in body_iter:
-                out.write(chunk)
-        if os.path.exists(ARCHIVE_PKG_PATH):
-            os.remove(ARCHIVE_PKG_PATH)
-        shutil.move(out.name, ARCHIVE_PKG_PATH)
-        log.info("Successfully downloaded new metadata package to {0}".format(
-            ARCHIVE_PKG_PATH))
-        return unpack_ui_package(ARCHIVE_PKG_PATH), True
-    elif code == 304:
-        log.info("Metadata package hash-sum hasn't changed, doing nothing")
-        return ARCHIVE_SUBDIR_PATH, False
-    else:
-        raise RuntimeError('Unexpected response received: {0}'.format(code))