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# -*- coding: utf-8 -*- |
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""" |
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Define properties types that can be used one OwnCloud/NextCloud elements |
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How to define a new property namespace. Example: |
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>>> class NCProp(Property): |
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>>> # define the namespace code with the namespace value |
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>>> namespace = ('nc', 'http://nextcloud.org/ns') |
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>>> # choose which attribute name is given by default on PropertySet |
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>>> _name_convention = { |
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>>> # xml : python |
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>>> 'xmly-attr-name': 'cute_attr_name', |
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>>> } # Note: by default, all '-' are already replaced by '_' |
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""" |
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import six |
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NAMESPACES_MAP = {} |
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NAMESPACES_CLASSES = {} |
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class MetaProperty(type): |
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def __new__(meta, name, bases, attrs): |
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cls = type.__new__(meta, name, bases, attrs) |
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if (cls.namespace): |
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NAMESPACES_MAP[cls.namespace[0]] = cls.namespace[1] |
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NAMESPACES_CLASSES[cls.namespace[0]] = cls |
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return cls |
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class Property(object, six.with_metaclass(MetaProperty)): |
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""" |
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Define an element property, and naming of resulting python attribute |
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:param xml_name: xml property name (prefixed with 'ns:' i.e. namespace) |
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:param json: json property name |
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:param default: default value (value or function without args) |
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:param parse_xml_value: a function that take xml.etree.ElementTree and |
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return value of the property |
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""" |
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namespace = None |
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_name_convention = {} |
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def __init__(self, xml_name, json=None, default=None, parse_xml_value=None): |
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if ':' in xml_name: |
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(self.ns, self.xml_key) = xml_name.split(':') |
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self._name_convention = NAMESPACES_CLASSES[self.ns] |
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else: |
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self.xml_key = xml_name |
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if self.namespace: |
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self.ns = self.namespace[0] |
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self.attr_name = self._xml_name_to_py_name(self.xml_key) |
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self.json_key = json |
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self.default_val = default |
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self.parse_xml_value = parse_xml_value |
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@classmethod |
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def _xml_name_to_py_name(cls, name): |
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if name in cls._name_convention: |
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return cls._name_convention[name] |
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else: |
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return name.replace('-', '_') |
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@classmethod |
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def _py_name_to_xml_name(cls, name): |
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_reversed_convention = {v: k for k, v in cls._name_convention.items()} |
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if name in _reversed_convention: |
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return _reversed_convention[name] |
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else: |
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return name.replace('_', '-') |
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@property |
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def default_value(self): |
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""" Fetch default value """ |
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if callable(self.default_val): |
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return self.default_val() |
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else: |
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return self.default_val |
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def get_value(self, xml=None): |
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""" |
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Fetch value from input data |
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:param xml: xml.etree.ElementTree node |
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:returns: python value |
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""" |
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if xml is not None: |
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if self.parse_xml_value: |
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return self.parse_xml_value(xml) |
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else: |
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return xml.text |
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class DProp(Property): |
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""" DAV property """ |
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namespace = ('d', 'DAV:') |
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_name_convention = { |
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'getlastmodified': 'last_modified', |
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'getetag': 'etag', |
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'getcontenttype': 'content_type', |
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'resourcetype': 'resource_type', |
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'getcontentlength': 'content_length' |
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} |
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class OCProp(Property): |
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""" OwnCloud property """ |
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namespace = ('oc', 'http://owncloud.org/ns') |
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_name_convention = { |
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'fileid': 'file_id', |
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'checksums': 'check_sums' |
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} |
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class NCProp(Property): |
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""" NextCloud property """ |
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namespace = ('nc', 'http://nextcloud.org/ns') |
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EnterpriseyIntranet /
nextcloud-API
