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

# Newspipe - A Web based news aggregator.
# Copyright (C) 2010-2016  Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : http://github.com/Newspipe/Newspipe
#
# 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 import request
from flask_login import current_user
from flask_restless import ProcessingException
from werkzeug.exceptions import NotFound
from web.controllers import ArticleController, UserController
from web.views.common import login_user_bundle

url_prefix = '/api/v3'

def auth_func(*args, **kw):
    if request.authorization:
        ucontr = UserController()
        try:
            user = ucontr.get(nickname=request.authorization.username)
        except NotFound:
            raise ProcessingException("Couldn't authenticate your user",
                                        code=401)
        if not ucontr.check_password(user, request.authorization.password):
            raise ProcessingException("Couldn't authenticate your user",
                                        code=401)
        if not user.is_active:
            raise ProcessingException("User is deactivated", code=401)
        login_user_bundle(user)
    if not current_user.is_authenticated:
        raise ProcessingException(description='Not authenticated!', code=401)

class AbstractProcessor():
    """Abstract processors for the Web services.
    """

    def is_authorized(self, user, obj):
        if user.id != obj.user_id:
            raise ProcessingException(description='Not Authorized', code=401)

    def get_single_preprocessor(self, instance_id=None, **kw):
        # Check if the user is authorized to modify the specified
        # instance of the model.
        pass

    def get_many_preprocessor(self, search_params=None, **kw):
        """Accepts a single argument, `search_params`, which is a dictionary
        containing the search parameters for the request.
        """
        filt = dict(name="user_id",
                    op="eq",
                    val=current_user.id)

        # Check if there are any filters there already.
        if "filters" not in search_params:
          search_params["filters"] = []

        search_params["filters"].append(filt)

    def post_preprocessor(self, data=None, **kw):
        pass

    def put_single_preprocessor(instance_id=None, data=None, **kw):
        """Accepts two arguments, `instance_id`, the primary key of the
        instance of the model to patch, and `data`, the dictionary of fields
        to change on the instance.
        """
        pass

    def put_many_preprocessor(search_params=None, data=None, **kw):
        """Accepts two arguments: `search_params`, which is a dictionary
        containing the search parameters for the request, and `data`, which
        is a dictionary representing the fields to change on the matching
        instances and the values to which they will be set.
        """
        filt = dict(name="user_id",
                    op="eq",
                    val=current_user.id)

        # Check if there are any filters there already.
        if "filters" not in search_params:
          search_params["filters"] = []

        search_params["filters"].append(filt)

    def delete_preprocessor(self, instance_id=None, **kw):
        pass
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