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# Copyright (C) 2019 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import copy
import json
import uuid
import requests
import ick2
class StoreInterface: # pragma: no cover
def create(self, token, obj):
raise NotImplementedError()
def update(self, token, rid, obj, revision):
raise NotImplementedError()
def show(self, token, rid):
raise NotImplementedError()
def delete(self, token, rid):
raise NotImplementedError()
def search(self, token, cond):
raise NotImplementedError()
class MemoryStore(StoreInterface):
def __init__(self):
self._objs = {}
def search(self, token, cond):
return list(self._objs.keys())
def _new_id(self):
return str(uuid.uuid4())
def _set(self, rid, rev, obj):
self._objs[rid] = (rev, copy.deepcopy(obj))
def create(self, token, obj):
rid = self._new_id()
rev = self._new_id()
self._set(rid, rev, obj)
return rid, rev
def show(self, token, rid):
if rid not in self._objs:
raise ick2.NotFound('unknown.type', rid)
rev, obj = self._objs[rid]
return copy.deepcopy(obj), rev
def update(self, token, rid, obj, revision):
old_obj, old_rev = self.show(token, rid)
if old_rev != revision:
raise ick2.Conflict(rid, old_rev, revision)
new_rev = self._new_id()
self._set(rid, new_rev, obj)
return new_rev
def delete(self, token, rid):
del self._objs[rid]
class MuckStore(StoreInterface): # pragma: no cover
def __init__(self, muck_url):
self._url = muck_url
ick2.log.log('info', msg_text='MuckStore created', muck_url=muck_url)
def _request(self, func, path, token, headers=None, body=None):
url = '{}{}'.format(self._url, path)
if headers is None:
headers = {}
headers['Authorization'] = 'Bearer {}'.format(token)
r = func(url, headers=headers, data=body)
ick2.log.log(
'trace', msg_text='Accessing Muck',
func=repr(func), url=url, path=path, headers=headers, data=body,
status=r.status_code, text=r.text)
if not r.ok:
raise ick2.StoreError(r.text)
return r
def search(self, token, cond):
headers = {
'Content-Type': 'application/json',
}
cond = {
'cond': [
{
'where': 'meta',
'field': 'id',
'op': '>=',
'pattern': '',
}
],
}
body = json.dumps(cond)
r = self._request(
requests.get, '/search', token, headers=headers, body=body)
obj = r.json()
return obj['resources']
def create(self, token, obj):
headers = {
'Content-Type': 'application/json',
}
body = json.dumps(obj)
r = self._request(
requests.post, '/res', token, headers=headers, body=body)
rid = r.headers['Muck-Id']
rev = r.headers['Muck-Revision']
return rid, rev
def show(self, token, rid):
headers = {
'Muck-Id': rid,
}
r = self._request(requests.get, '/res', token, headers=headers)
rev = r.headers['Muck-Revision']
as_dict = r.json()
return as_dict, rev
def update(self, token, rid, obj, revision):
headers = {
'Content-Type': 'application/json',
'Muck-Id': rid,
'Muck-Revision': revision,
}
body = json.dumps(obj)
r = self._request(
requests.put, '/res', token, headers=headers, body=body)
rev = r.headers['Muck-Revision']
return rev
def delete(self, token, rid):
headers = {
'Muck-Id': rid,
}
self._request(requests.delete, '/res', token, headers=headers)
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