1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2013 MediaGoblin contributors. See AUTHORS.
#
# 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 logging
import lxml.etree as ET
from werkzeug.exceptions import MethodNotAllowed
from mediagoblin.tools.response import Response
_log = logging.getLogger(__name__)
class PwgNamedArray(list):
def __init__(self, l, item_name, as_attrib=()):
self.item_name = item_name
self.as_attrib = as_attrib
list.__init__(self, l)
def fill_element_xml(self, el):
for it in self:
n = ET.SubElement(el, self.item_name)
if isinstance(it, dict):
_fill_element_dict(n, it, self.as_attrib)
else:
_fill_element(n, it)
def _fill_element_dict(el, data, as_attr=()):
for k, v in data.iteritems():
if k in as_attr:
if not isinstance(v, basestring):
v = str(v)
el.set(k, v)
else:
n = ET.SubElement(el, k)
_fill_element(n, v)
def _fill_element(el, data):
if isinstance(data, bool):
if data:
el.text = "1"
else:
el.text = "0"
elif isinstance(data, basestring):
el.text = data
elif isinstance(data, int):
el.text = str(data)
elif isinstance(data, dict):
_fill_element_dict(el, data)
elif isinstance(data, PwgNamedArray):
data.fill_element_xml(el)
else:
_log.warn("Can't convert to xml: %r", data)
def response_xml(result):
r = ET.Element("rsp")
r.set("stat", "ok")
_fill_element(r, result)
return Response(ET.tostring(r, encoding="utf-8", xml_declaration=True),
mimetype='text/xml')
class CmdTable(object):
_cmd_table = {}
def __init__(self, cmd_name, only_post=False):
assert not cmd_name in self._cmd_table
self.cmd_name = cmd_name
self.only_post = only_post
def __call__(self, to_be_wrapped):
assert not self.cmd_name in self._cmd_table
self._cmd_table[self.cmd_name] = (to_be_wrapped, self.only_post)
return to_be_wrapped
@classmethod
def find_func(cls, request):
if request.method == "GET":
cmd_name = request.args.get("method")
else:
cmd_name = request.form.get("method")
entry = cls._cmd_table.get(cmd_name)
if not entry:
return entry
_log.debug("Found method %s", cmd_name)
func, only_post = entry
if only_post and request.method != "POST":
_log.warn("Method %s only allowed for POST", cmd_name)
raise MethodNotAllowed()
return func
|
