bc92ff9d3c
six allows us to smoothly get more forward compatible with py3. The idea is to change things over to use six, when/if we feel a need for it.
109 lines
3.3 KiB
Python
109 lines
3.3 KiB
Python
# GNU MediaGoblin -- federated, autonomous media hosting
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# Copyright (C) 2013 MediaGoblin contributors. See AUTHORS.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import six
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import lxml.etree as ET
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from werkzeug.exceptions import MethodNotAllowed
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from mediagoblin.tools.response import Response
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_log = logging.getLogger(__name__)
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class PwgNamedArray(list):
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def __init__(self, l, item_name, as_attrib=()):
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self.item_name = item_name
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self.as_attrib = as_attrib
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list.__init__(self, l)
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def fill_element_xml(self, el):
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for it in self:
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n = ET.SubElement(el, self.item_name)
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if isinstance(it, dict):
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_fill_element_dict(n, it, self.as_attrib)
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else:
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_fill_element(n, it)
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def _fill_element_dict(el, data, as_attr=()):
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for k, v in data.iteritems():
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if k in as_attr:
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if not isinstance(v, six.string_types):
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v = str(v)
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el.set(k, v)
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else:
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n = ET.SubElement(el, k)
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_fill_element(n, v)
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def _fill_element(el, data):
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if isinstance(data, bool):
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if data:
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el.text = "1"
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else:
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el.text = "0"
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elif isinstance(data, six.string_types):
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el.text = data
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elif isinstance(data, int):
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el.text = str(data)
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elif isinstance(data, dict):
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_fill_element_dict(el, data)
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elif isinstance(data, PwgNamedArray):
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data.fill_element_xml(el)
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else:
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_log.warn("Can't convert to xml: %r", data)
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def response_xml(result):
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r = ET.Element("rsp")
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r.set("stat", "ok")
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_fill_element(r, result)
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return Response(ET.tostring(r, encoding="utf-8", xml_declaration=True),
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mimetype='text/xml')
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class CmdTable(object):
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_cmd_table = {}
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def __init__(self, cmd_name, only_post=False):
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assert not cmd_name in self._cmd_table
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self.cmd_name = cmd_name
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self.only_post = only_post
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def __call__(self, to_be_wrapped):
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assert not self.cmd_name in self._cmd_table
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self._cmd_table[self.cmd_name] = (to_be_wrapped, self.only_post)
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return to_be_wrapped
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@classmethod
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def find_func(cls, request):
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if request.method == "GET":
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cmd_name = request.args.get("method")
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else:
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cmd_name = request.form.get("method")
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entry = cls._cmd_table.get(cmd_name)
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if not entry:
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return entry
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_log.debug("Found method %s", cmd_name)
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func, only_post = entry
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if only_post and request.method != "POST":
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_log.warn("Method %s only allowed for POST", cmd_name)
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raise MethodNotAllowed()
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return func
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