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path: root/src/web/views/api/v3/article.py
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#! /usr/bin/env python
# -*- coding: utf-8 -*-

# JARR - A Web based news aggregator.
# Copyright (C) 2010-2016  Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : http://github.com/JARR/JARR
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>

__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.1 $"
__date__ = "$Date: 2016/04/29 $"
__revision__ = "$Date: 2016/04/29 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"

from flask.ext.login import current_user
from werkzeug.exceptions import NotFound
from flask.ext.restless import ProcessingException
from web import models
from bootstrap import application, manager
from web.controllers import ArticleController, FeedController
from web.views.api.v3.common import AbstractProcessor
from web.views.api.v3.common import url_prefix, auth_func

class ArticleProcessor(AbstractProcessor):
    """Concrete processors for the Article Web service.
    """

    def get_single_preprocessor(self, instance_id=None, **kw):
        try:
            article = ArticleController(current_user.id).get(id=instance_id)
        except NotFound:
            raise ProcessingException(description='No such article.', code=404)
        self.is_authorized(current_user, article)

    def post_preprocessor(self, data=None, **kw):
        data["user_id"] = current_user.id

        try:
            feed = FeedController(current_user.id).get(id=data["feed_id"])
        except NotFound:
            raise ProcessingException(description='No such feed.', code=404)
        self.is_authorized(current_user, feed)

        data["category_id"] = feed.category_id

    def delete_preprocessor(self, instance_id=None, **kw):
        try:
            article = ArticleController(current_user.id).get(id=instance_id)
        except NotFound:
            raise ProcessingException(description='No such article.', code=404)
        self.is_authorized(current_user, article)

article_processor = ArticleProcessor()

blueprint_article = manager.create_api_blueprint(models.Article,
        url_prefix=url_prefix,
        methods=['GET', 'POST', 'PUT', 'DELETE'],
        preprocessors=dict(GET_SINGLE=[auth_func,
                                    article_processor.get_single_preprocessor],
                            GET_MANY=[auth_func,
                                    article_processor.get_many_preprocessor],
                            POST=[auth_func,
                                    article_processor.post_preprocessor],
                            PUT_SINGLE=[auth_func,
                                    article_processor.put_single_preprocessor],
                            PUT_MANY=[auth_func,
                                    article_processor.put_many_preprocessor],
                            DELETE=[auth_func,
                                    article_processor.delete_preprocessor]))
application.register_blueprint(blueprint_article)
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