| 1 |  |  | """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | parse xml file from asyncua-spec | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | import re | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | import asyncio | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | import base64 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | import logging | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | from pytz import utc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | import xml.etree.ElementTree as ET | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | from .ua_utils import string_to_val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | from asyncua import ua | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | def ua_type_to_python(val, uatype_as_str): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     Converts a string value to a python value according to ua_utils. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     return string_to_val(val, getattr(ua.VariantType, uatype_as_str)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | def _to_bool(val): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     Easy access to boolean conversion. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     return ua_type_to_python(val, "Boolean") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | class NodeData: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     def __init__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         self.nodetype = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         self.nodeid = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         self.browsename = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         self.displayname = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         self.symname = None  # FIXME: this param is never used, why? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         self.parent = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         self.parentlink = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         self.desc = "" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         self.typedef = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         self.refs = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         self.nodeclass = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |         self.eventnotifier = 0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |         # variable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         self.datatype = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         self.rank = -1  # check default value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         self.value = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         self.valuetype = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         self.dimensions = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         self.accesslevel = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         self.useraccesslevel = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |         self.minsample = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         # referencetype | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         self.inversename = "" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         self.abstract = False | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         self.symmetric = False | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         # datatype | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |         self.definitions = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     def __str__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         return f"NodeData(nodeid:{self.nodeid})" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     __repr__ = __str__ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | class Field: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     def __init__(self, data): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         self.datatype = data.get("DataType", "") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         self.name = data.get("Name") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         self.dname = data.get("DisplayName", "") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         self.optional = bool(data.get("IsOptional", False)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         self.valuerank = int(data.get("ValueRank", -1)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         self.arraydim = data.get("ArrayDimensions", None) #FIXME: check type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         self.value = int(data.get("Value", 0)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         self.desc = data.get("Description", "") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | class RefStruct: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     def __init__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         self.reftype = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         self.forward = True | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         self.target = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     def __str__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         return f"RefStruct({self.reftype, self.forward, self.target})" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     __repr__ = __str__ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | class ExtObj: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     def __init__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         self.typeid = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         self.objname = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         self.bodytype = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         self.body = {} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     def __str__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         return f"ExtObj({self.objname}, {self.body})" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |     __repr__ = __str__ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | class XMLParser: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     def __init__(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         self.logger = logging.getLogger(__name__) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         self._retag = re.compile(r"(\{.*\})(.*)") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |         self.root = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         self.ns = { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |             'base': "http://opcfoundation.org/UA/2011/03/UANodeSet.xsd", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |             'uax': "http://opcfoundation.org/UA/2008/02/Types.xsd", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |             'xsd': "http://www.w3.org/2001/XMLSchema", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |             'xsi': "http://www.w3.org/2001/XMLSchema-instance" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     async def parse(self, xmlpath=None, xmlstring=None): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         if xmlstring: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |             self.root = ET.fromstring(xmlstring) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |             tree = await asyncio.get_event_loop().run_in_executor(None, ET.parse, xmlpath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |             self.root = tree.getroot() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |     def parse_sync(self, xmlpath=None, xmlstring=None): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |         if xmlstring: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |             self.root = ET.fromstring(xmlstring) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |             tree = ET.parse(xmlpath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |             self.root = tree.getroot() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |     def get_used_namespaces(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         Return the used namespace uris in this import file | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |         namespaces_uris = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         for child in self.root: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |             tag = self._retag.match(child.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |             if tag == 'NamespaceUris': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |                 namespaces_uris = [ns_element.text for ns_element in child] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |                 break | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         return namespaces_uris | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 145 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 146 |  |  |     def get_aliases(self) -> dict: | 
            
                                                                        
                            
            
                                    
            
            
                | 147 |  |  |         """ | 
            
                                                                        
                            
            
                                    
            
            
                | 148 |  |  |         Return the used node aliases in this import file | 
            
                                                                        
                            
            
                                    
            
            
                | 149 |  |  |         """ | 
            
                                                                        
                            
            
                                    
            
            
                | 150 |  |  |         aliases = {} | 
            
                                                                        
                            
            
                                    
            
            
                | 151 |  |  |         for child in self.root: | 
            
                                                                        
                            
            
                                    
            
            
                | 152 |  |  |             tag = self._retag.match(child.tag).groups()[1] | 
            
                                                                        
                            
            
                                    
            
            
                | 153 |  |  |             if tag == 'Aliases': | 
            
                                                                        
                            
            
                                    
            
            
                | 154 |  |  |                 for el in child: | 
            
                                                                        
                            
            
                                    
            
            
                | 155 |  |  |                     aliases[el.attrib["Alias"]] = el.text | 
            
                                                                        
                            
            
                                    
            
            
                | 156 |  |  |                 break | 
            
                                                                        
                            
            
                                    
            
            
                | 157 |  |  |         return aliases | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |     def get_node_datas(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |         nodes = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         for child in self.root: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |             tag = self._retag.match(child.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |             if tag not in ["Aliases", "NamespaceUris", "Extensions", "Models"]:  # these XML tags don't contain nodes | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |                 node = self._parse_node(tag, child) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |                 nodes.append(node) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         return nodes | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |     def _parse_node(self, nodetype, child): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         Parse a XML node and create a NodeData object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |         obj = NodeData() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         obj.nodetype = nodetype | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         for key, val in child.attrib.items(): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |             self._set_attr(key, val, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         self.logger.debug("Parsing node: %s %s", obj.nodeid, obj.browsename) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |         obj.displayname = obj.browsename  # give a default value to display name | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         for el in child: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |             self._parse_attr(el, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         return obj | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |     def _set_attr(self, key, val, obj): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |         if key == "NodeId": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |             obj.nodeid = val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |         elif key == "BrowseName": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |             obj.browsename = val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |         elif key == "SymbolicName": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |             obj.symname = val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |         elif key == "ParentNodeId": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |             obj.parent = val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |         elif key == "DataType": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |             obj.datatype = val | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |         elif key == "IsAbstract": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |             obj.abstract = _to_bool(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |         elif key == "Executable": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |             obj.executable = _to_bool(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |         elif key == "EventNotifier": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |             obj.eventnotifier = int(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         elif key == "ValueRank": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |             obj.rank = int(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |         elif key == "ArrayDimensions": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |             obj.dimensions = [int(i) for i in val.split(",")] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         elif key == "MinimumSamplingInterval": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |             obj.minsample = int(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |         elif key == "AccessLevel": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |             obj.accesslevel = int(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         elif key == "UserAccessLevel": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |             obj.useraccesslevel = int(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |         elif key == "Symmetric": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             obj.symmetric = _to_bool(val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |             self.logger.info("Attribute not implemented: %s:%s", key, val) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |     def _parse_attr(self, el, obj): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |         tag = self._retag.match(el.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |         if tag == "DisplayName": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |             obj.displayname = el.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |         elif tag == "Description": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |             obj.desc = el.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |         elif tag == "References": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |             self._parse_refs(el, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |         elif tag == "Value": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |             self._parse_contained_value(el, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |         elif tag == "InverseName": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |             obj.inversename = el.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |         elif tag == "Definition": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |             for field in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |                 field = self._parse_field(field) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |                 obj.definitions.append(field) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |             self.logger.info("Not implemented tag: %s", el) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |     def _parse_field(self, field): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |         return Field(field) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |     def _parse_contained_value(self, el, obj): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |         Parse the child of el as a constant. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |         val_el = el.find(".//")  # should be only one child | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |         self._parse_value(val_el, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |     def _parse_value(self, val_el, obj): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |         Parse the node val_el as a constant. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |         if val_el is not None and val_el.text is not None: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |             ntag = self._retag.match(val_el.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |             ntag = "Null" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |         obj.valuetype = ntag | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |         if ntag == "Null": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |             obj.value = None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |         elif hasattr(ua.ua_binary.Primitives1, ntag): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |             # Elementary types have their parsing directly relying on ua_type_to_python. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |             obj.value = ua_type_to_python(val_el.text, ntag) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |         elif ntag == "DateTime": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |             obj.value = ua_type_to_python(val_el.text, ntag) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |             # According to specs, DateTime should be either UTC or with a timezone. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |             if obj.value.tzinfo is None or obj.value.tzinfo.utcoffset(obj.value) is None: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |                 utc.localize(obj.value)  # FIXME Forcing to UTC if unaware, maybe should raise? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |         elif ntag == "ByteString": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |             if val_el.text is None: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |                 mytext = b"" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |             else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |                 mytext = val_el.text.encode() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |                 mytext = base64.b64decode(mytext) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |             obj.value = mytext | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |         elif ntag == "String": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |             mytext = val_el.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  |             if mytext is None: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |                 # Support importing null strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |                 mytext = "" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |             # mytext = mytext.replace('\n', '').replace('\r', '') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |             obj.value = mytext | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |         elif ntag == "Guid": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |             self._parse_contained_value(val_el, obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  |             # Override parsed string type to guid. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |             obj.valuetype = ntag | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |         elif ntag == "NodeId": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |             id_el = val_el.find("uax:Identifier", self.ns) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  |             if id_el is not None: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |                 obj.value = id_el.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  |         elif ntag == "ExtensionObject": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |             obj.value = self._parse_ext_obj(val_el) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |         elif ntag == "LocalizedText": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  |             obj.value = self._parse_body(val_el) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  |         elif ntag == "ListOfLocalizedText": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  |             obj.value = self._parse_list_of_localized_text(val_el) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |         elif ntag == "ListOfExtensionObject": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  |             obj.value = self._parse_list_of_extension_object(val_el) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  |         elif ntag.startswith("ListOf"): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |             # Default case for "ListOf" types. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  |             # Should stay after particular cases (e.g.: "ListOfLocalizedText"). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |             obj.value = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  |             for val_el in val_el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  |                 tmp = NodeData() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  |                 self._parse_value(val_el, tmp) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |                 obj.value.append(tmp.value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  |         else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  |             # Missing according to string_to_val: XmlElement, ExpandedNodeId, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  |             # QualifiedName, StatusCode. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  |             # Missing according to ua.VariantType (also missing in string_to_val): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  |             # DataValue, Variant, DiagnosticInfo. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  |             self.logger.warning("Parsing value of type '%s' not implemented", ntag) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  |     def _get_text(self, el): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  |         txtlist = [txt.strip() for txt in el.itertext()] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  |         return "".join(txtlist) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |     def _parse_list_of_localized_text(self, el): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  |         value = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  |         for localized_text in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  |             mylist = self._parse_body(localized_text) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |             # each localized text is in a dictionary with "Locale" and "Text" keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  |             item = {"Text": None, "Locale": None} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  |             for name, val in mylist: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  |                 item.update({str(name): val}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  |             # value is an array of dictionaries with localized texts | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  |             value.append(item) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  |         return value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  |     def _parse_list_of_extension_object(self, el): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  |         Parse a uax:ListOfExtensionObject Value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  |         Return an list of ExtObj | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  |         value = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  |         for extension_object in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  |             ext_obj = self._parse_ext_obj(extension_object) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  |             value.append(ext_obj) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  |         return value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  |     def _parse_ext_obj(self, el): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  |         ext = ExtObj() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  |         for extension_object_part in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  |             ntag = self._retag.match(extension_object_part.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  |             if ntag == 'TypeId': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 |  |  |                 ntag = self._retag.match(extension_object_part.find('*').tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 |  |  |                 ext.typeid = self._get_text(extension_object_part) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  |             elif ntag == 'Body': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  |                 ext.objname = self._retag.match(extension_object_part.find('*').tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  |                 ext.body = self._parse_body(extension_object_part) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 |  |  |             else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  |                 self.logger.warning("Unknown ntag", ntag) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  |         return ext | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  |     def _parse_body(self, el): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  |         body = [] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  |         for body_item in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 |  |  |             otag = self._retag.match(body_item.tag).groups()[1] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  |             childs = [i for i in body_item] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  |             if not childs: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  |                 val = self._get_text(body_item) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 |  |  |             else: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  |                 val = self._parse_body(body_item) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  |             if val: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  |                 body.append((otag, val)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  |         return body | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  |     def _parse_refs(self, el, obj): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  |         parent, parentlink = obj.parent, None | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  |         for ref in el: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  |             struct = RefStruct() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  |             struct.forward = "IsForward" not in ref.attrib or ref.attrib["IsForward"] not in ("false", "False") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  |             struct.target = ref.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  |             struct.reftype = ref.attrib["ReferenceType"] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  |             obj.refs.append(struct) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  |             if ref.attrib["ReferenceType"] == "HasTypeDefinition": | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  |                 obj.typedef = ref.text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  |             elif not struct.forward: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  |                 parent, parentlink = struct.target, struct.reftype | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  |                 if obj.parent == parent or obj.parent != parent and not obj.parentlink: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 378 |  |  |                     obj.parentlink = parentlink | 
            
                                                                                                            
                            
            
                                    
            
            
                | 379 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 380 |  |  |         if obj.parent and not obj.parentlink: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 381 |  |  |             # the case of asimple parent attribute without any reverse link | 
            
                                                                                                            
                            
            
                                    
            
            
                | 382 |  |  |             obj.parentlink = "HasComponent" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 383 |  |  |         if not obj.parent: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 384 |  |  |             obj.parent, obj.parentlink = parent, parentlink | 
            
                                                                                                            
                            
            
                                    
            
            
                | 385 |  |  |         if not obj.parent: | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 386 |  |  |             self.logger.info("Could not find parent for node '%s'", obj.nodeid) | 
            
                                                        
            
                                    
            
            
                | 387 |  |  |  |