/
subscriptions.py
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/
subscriptions.py
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# -*- coding: utf-8 -*-
# Copyright European Organization for Nuclear Research (CERN) since 2012
#
# 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.
from json import dumps
from flask import Flask, Response, request
from rucio.api.rule import list_replication_rules
from rucio.api.subscription import list_subscriptions, add_subscription, update_subscription, \
list_subscription_rule_states, get_subscription_by_id
from rucio.common.exception import InvalidObject, SubscriptionDuplicate, SubscriptionNotFound, RuleNotFound, \
AccessDenied
from rucio.common.utils import render_json, APIEncoder
from rucio.web.rest.flaskapi.authenticated_bp import AuthenticatedBlueprint
from rucio.web.rest.flaskapi.v1.common import check_accept_header_wrapper_flask, try_stream, \
response_headers, generate_http_error_flask, ErrorHandlingMethodView, json_parameters, param_get
class Subscription(ErrorHandlingMethodView):
""" REST APIs for subscriptions. """
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self, account=None, name=None):
"""
---
summary: Get Subscription
description: Retrieve a subscription.
tags:
- Replicas
parameters:
- name: account
in: path
description: The account name.
schema:
type: string
style: simple
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: A list of subscriptions.
type: array
items:
description: A subscription.
type: object
properties:
id:
description: The id of the subscription.
type: string
name:
description: The name of the subscription.
type: string
filter:
description: The filter for the subscription.
type: string
replication_rules:
description: The replication rules for the subscription.
type: string
policyid:
description: The policyid for the subscription.
type: integer
state:
description: The state of the subscription.
type: string
enum: ["A", "I", "N", "U", "B"]
last_processed:
description: The time the subscription was processed last.
type: string
format: date-time
account:
description: The account for the subscription.
type: string
lifetime:
description: The lifetime for the subscription.
type: string
format: date-time
comments:
description: The comments for the subscription.
type: string
retroactive:
description: If the subscription is retroactive.
type: boolean
expired_at:
description: The date-time of the expiration for the subscription.
type: string
format: date-time
401:
description: Invalid Auth Token
404:
description: Subscription Not found
406:
description: Not acceptable
"""
try:
def generate(vo):
for subscription in list_subscriptions(name=name, account=account, vo=vo):
yield render_json(**subscription) + '\n'
return try_stream(generate(vo=request.environ.get('vo')))
except SubscriptionNotFound as error:
return generate_http_error_flask(404, error)
def put(self, account, name):
"""
---
summary: Update subscription
description: Update an existing subscription.
tags:
- Replicas
parameters:
- name: account
in: path
description: The account name.
schema:
type: string
style: simple
required: true
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
required: true
requestBody:
content:
application/json:
schema:
type: object
required:
- options
properties:
options:
description: The values for the new subcription.
type: object
properties:
filter:
description: The filter for the subscription.
type: string
replication_rules:
description: The replication rules for the subscription.
type: string
comments:
description: The comments for the subscription.
type: string
lifetime:
description: The lifetime for the subscription.
type: string
format: date-time
retroactive:
description: If the retroactive is actiavted for a subscription.
type: boolean
priority:
description: The priority/policyid for the subscription. Stored as policyid.
type: integer
responses:
201:
description: OK
400:
description: Cannot decode json parameter list.
401:
description: Invalid Auth Token
404:
description: Not found
"""
parameters = json_parameters()
options = param_get(parameters, 'options')
metadata = {
'filter': None,
'replication_rules': None,
'comments': None,
'lifetime': None,
'retroactive': None,
'priority': None,
}
for keyword in list(metadata):
metadata[keyword] = param_get(options, keyword, default=metadata[keyword])
try:
update_subscription(name=name, account=account, metadata=metadata, issuer=request.environ.get('issuer'), vo=request.environ.get('vo'))
except (InvalidObject, TypeError) as error:
return generate_http_error_flask(400, InvalidObject.__name__, error.args[0])
except AccessDenied as error:
return generate_http_error_flask(401, error)
except SubscriptionNotFound as error:
return generate_http_error_flask(404, error)
return 'Created', 201
def post(self, account, name):
"""
---
summary: Create subscription
description: Create a new subscription
tags:
- Replicas
parameters:
- name: account
in: path
description: The account name.
schema:
type: string
style: simple
required: true
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
required: true
requestBody:
content:
application/json:
schema:
type: object
required:
- options
properties:
options:
description: The values for the new subcription.
type: object
required:
- filter
- replication_rules
- comments
- lifetime
- retroactive
properties:
filter:
description: The filter for the subscription.
type: string
replication_rules:
description: The replication rules for the subscription.
type: string
comments:
description: The comments for the subscription.
type: string
lifetime:
description: The lifetime for the subscription.
type: string
format: date-time
retroactive:
description: If the retroactive is actiavted for a subscription.
type: boolean
priority:
description: The priority/policyid for the subscription. Stored as policyid.
type: integer
dry_run:
description: The priority/policyid for the subscription. Stored as policyid.
type: boolean
default: false
responses:
200:
description: OK
content:
application/json:
schema:
description: The subscription Id for the new subscription.
type: string
400:
description: Cannot decode json parameter list.
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
parameters = json_parameters()
options = param_get(parameters, 'options')
filter_param = param_get(options, 'filter')
replication_rules = param_get(options, 'replication_rules')
comments = param_get(options, 'comments')
lifetime = param_get(options, 'lifetime')
retroactive = param_get(options, 'retroactive')
dry_run = param_get(options, 'dry_run', default=False)
priority = param_get(options, 'priority', default=False)
if not priority:
priority = 3
try:
subscription_id = add_subscription(
name=name,
account=account,
filter_=filter_param,
replication_rules=replication_rules,
comments=comments,
lifetime=lifetime,
retroactive=retroactive,
dry_run=dry_run,
priority=priority,
issuer=request.environ.get('issuer'),
vo=request.environ.get('vo'),
)
except (InvalidObject, TypeError) as error:
return generate_http_error_flask(400, InvalidObject.__name__, error.args[0])
except AccessDenied as error:
return generate_http_error_flask(401, error)
except SubscriptionDuplicate as error:
return generate_http_error_flask(409, error)
return Response(subscription_id, status=201)
class SubscriptionName(ErrorHandlingMethodView):
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self, name=None):
"""
---
summary: Get Subscription by Name
description: Retrieve a subscription by name.
tags:
- Replicas
parameters:
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: A list of subscriptions.
type: array
items:
description: A subscription.
type: object
properties:
id:
description: The id of the subscription.
type: string
name:
description: The name of the subscription.
type: string
filter:
description: The filter for the subscription.
type: string
replication_rules:
description: The replication rules for the subscription.
type: string
policyid:
description: The policyid for the subscription.
type: integer
state:
description: The state of the subscription.
type: string
enum: ["A", "I", "N", "U", "B"]
last_processed:
description: The time the subscription was processed last.
type: string
format: date-time
account:
description: The account for the subscription.
type: string
lifetime:
description: The lifetime for the subscription.
type: string
format: date-time
comments:
description: The comments for the subscription.
type: string
retroactive:
description: If the subscription is retroactive.
type: boolean
expired_at:
description: The date-time of the expiration for the subscription.
type: string
format: date-time
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
try:
def generate(vo):
for subscription in list_subscriptions(name=name, vo=vo):
yield render_json(**subscription) + '\n'
return try_stream(generate(vo=request.environ.get('vo')))
except SubscriptionNotFound as error:
return generate_http_error_flask(404, error)
class Rules(ErrorHandlingMethodView):
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self, account, name):
"""
---
summary: Get Replication Rules
description: Return all rules of a given subscription id.
tags:
- Replicas
parameters:
- name: account
in: path
description: The account name.
schema:
type: string
style: simple
required: true
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
required: true
- name: state
in: query
description: The subscription state to filter for.
schema:
type: string
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: A list with the associated replication rules.
type: array
items:
description: A subscription rule.
401:
description: Invalid Auth Token
404:
description: Rule or Subscription not found
406:
description: Not acceptable
"""
state = request.args.get('state', default=None)
try:
subscriptions = [subscription['id'] for subscription in list_subscriptions(name=name, account=account, vo=request.environ.get('vo'))]
def generate(vo):
if len(subscriptions) > 0:
if state:
for rule in list_replication_rules({'subscription_id': subscriptions[0], 'state': state}, vo=vo):
yield render_json(**rule) + '\n'
else:
for rule in list_replication_rules({'subscription_id': subscriptions[0]}, vo=vo):
yield render_json(**rule) + '\n'
return try_stream(generate(vo=request.environ.get('vo')))
except (RuleNotFound, SubscriptionNotFound) as error:
return generate_http_error_flask(404, error)
class States(ErrorHandlingMethodView):
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self, account, name=None):
"""
---
summary: Get states
description: Return a summary of the states of all rules of a given subscription id.
tags:
- Replicas
parameters:
- name: account
in: path
description: The account name.
schema:
type: string
style: simple
required: true
- name: name
in: path
description: The subscription name.
schema:
type: string
style: simple
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: A list of rule states with counts for each subscription.
type: array
items:
type: object
properties:
account:
description: The account for the subscription.
type: string
name:
description: The name of the subscription.
type: string
state:
description: The state of the rules.
type: string
enum: ["R", "O", "S", "U", "W", "I"]
count:
description: The number of rules with that state.
type: integer
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
def generate(vo):
for row in list_subscription_rule_states(account=account, vo=vo):
yield dumps(row, cls=APIEncoder) + '\n'
return try_stream(generate(vo=request.environ.get('vo')))
class SubscriptionId(ErrorHandlingMethodView):
@check_accept_header_wrapper_flask(['application/json'])
def get(self, subscription_id):
"""
---
summary: Get Subscription from ID
description: Retrieve a subscription matching the given subscription id.
tags:
- Replicas
parameters:
- name: subscription_id
in: path
description: The subscription id.
schema:
type: string
style: simple
required: true
responses:
200:
description: OK
content:
application/json:
schema:
description: The subscription.
type: object
properties:
id:
description: The id of the subscription.
type: string
name:
description: The name of the subscription.
type: string
filter:
description: The filter for the subscription.
type: string
replication_rules:
description: The replication rules for the subscription.
type: string
policyid:
description: The policyid for the subscription.
type: integer
state:
description: The state of the subscription.
type: string
enum: ["A", "I", "N", "U", "B"]
last_processed:
description: The time the subscription was processed last.
type: string
format: date-time
account:
description: The account for the subscription.
type: string
lifetime:
description: The lifetime for the subscription.
type: string
format: date-time
comments:
description: The comments for the subscription.
type: string
retroactive:
description: If the subscription is retroactive.
type: boolean
expired_at:
description: The date-time of the expiration for the subscription.
type: string
format: date-time
401:
description: Invalid Auth Token
404:
description: Subscription not found
406:
description: Not acceptable
"""
try:
subscription = get_subscription_by_id(subscription_id, vo=request.environ.get('vo'))
except SubscriptionNotFound as error:
return generate_http_error_flask(404, error)
return Response(render_json(**subscription), content_type="application/json")
def blueprint():
bp = AuthenticatedBlueprint('subscriptions', __name__, url_prefix='/subscriptions')
subscription_id_view = SubscriptionId.as_view('subscription_id')
bp.add_url_rule('/Id/<subscription_id>', view_func=subscription_id_view, methods=['get', ])
states_view = States.as_view('states')
bp.add_url_rule('/<account>/<name>/Rules/States', view_func=states_view, methods=['get', ])
bp.add_url_rule('/<account>/Rules/States', view_func=states_view, methods=['get', ])
rules_view = Rules.as_view('rules')
bp.add_url_rule('/<account>/<name>/Rules', view_func=rules_view, methods=['get', ])
subscription_view = Subscription.as_view('subscription')
bp.add_url_rule('/<account>/<name>', view_func=subscription_view, methods=['get', 'post', 'put'])
bp.add_url_rule('/<account>', view_func=subscription_view, methods=['get', ])
bp.add_url_rule('/', view_func=subscription_view, methods=['get', ])
subscription_name_view = SubscriptionName.as_view('subscription_name')
bp.add_url_rule('/Name/<name>', view_func=subscription_name_view, methods=['get', ])
bp.after_request(response_headers)
return bp
def make_doc():
""" Only used for sphinx documentation """
doc_app = Flask(__name__)
doc_app.register_blueprint(blueprint())
return doc_app