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path: root/ick2/apibase.py
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# Copyright (C) 2017  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 ick2


class APIbase:

    def __init__(self, state):
        self._state = state

    def get_routes(self, path):
        return [
            {
                'method': 'POST',
                'path': path,
                'callback': self.POST(self.create),
            },
            {
                'method': 'GET',
                'path': path,
                'callback': self.GET(self.list),
            },
            {
                'method': 'GET',
                'path': '{}/<name>'.format(path),
                'callback': self.GET(self.show),
            },
            {
                'method': 'PUT',
                'path': '{}/<name>'.format(path),
                'callback': self.PUT(self.update),
            },
            {
                'method': 'DELETE',
                'path': '{}/<name>'.format(path),
                'callback': self.DELETE(self.delete),
            },
        ]

    def GET(self, callback):
        def wrapper(content_type, body, **kwargs):
            ick2.log.log(
                'trace', msg_text='GET called', kwargs=kwargs,
                content_type=content_type, body=body)
            try:
                if 'raw_uri_path' in kwargs:
                    del kwargs['raw_uri_path']
                    body = callback(**kwargs)
            except ick2.NotFound as e:
                return ick2.not_found(e)
            if isinstance(body, dict):
                return ick2.OK(body)
            elif isinstance(body, str):
                return ick2.text_plain(body)
            raise Exception('this must not happen')
        return wrapper

    def POST(self, callback):
        def wrapper(content_type, body, **kwargs):
            ick2.log.log(
                'trace', msg_text='POST called', kwargs=kwargs,
                content_type=content_type, body=body)
            body = callback(body)
            ick2.log.log('trace', msg_text='returned body', body=repr(body))
            return ick2.created(body)
        return wrapper

    def PUT(self, callback):
        def wrapper(content_type, body, **kwargs):
            ick2.log.log(
                'trace', msg_text='PUT called', kwargs=kwargs,
                content_type=content_type, body=body)
            if 'raw_uri_path' in kwargs:
                del kwargs['raw_uri_path']
            try:
                body = callback(body, **kwargs)
            except ick2.NotFound as e:
                return ick2.not_found(e)
            except ick2.WrongPipelineStatus as e:
                ick2.log.log(
                    'error',
                    msg_text='Wrong state for pipeline',
                    exception=str(e))
                return ick2.bad_request(e)
            ick2.log.log('trace', msg_text='returned body', body=repr(body))
            return ick2.OK(body)
        return wrapper

    def DELETE(self, callback):
        def wrapper(content_type, body, **kwargs):
            ick2.log.log(
                'trace', msg_text='DELETE called', kwargs=kwargs,
                content_type=content_type, body=body)
            try:
                if 'raw_uri_path' in kwargs:
                    del kwargs['raw_uri_path']
                body = callback(**kwargs)
            except ick2.NotFound as e:
                return ick2.not_found(e)
            return ick2.OK(body)
        return wrapper

    def create(self, body):
        raise NotImplementedError()

    def update(self, body, name):
        raise NotImplementedError()

    def delete(self, name):
        raise NotImplementedError()

    def list(self):
        raise NotImplementedError()

    def show(self, name):
        raise NotImplementedError()