Source code for synapse.lib.stormlib.xml

import synapse.exc as s_exc

import synapse.lib.coro as s_coro
import synapse.lib.stormtypes as s_stormtypes

import xml.etree.ElementTree as xml_et

[docs]@s_stormtypes.registry.registerType class XmlElement(s_stormtypes.Prim): ''' A Storm object for dealing with elements in an XML tree. ''' _storm_typename = 'xml:element' _storm_locals = ( {'name': 'name', 'desc': 'The element tag name.', 'type': 'str'}, {'name': 'text', 'desc': 'The element text body.', 'type': 'str'}, {'name': 'attrs', 'desc': 'The element attributes list.', 'type': 'dict'}, {'name': 'find', 'desc': 'Find all nested elements with the specified tag name.', 'type': {'type': 'function', '_funcname': 'find', 'args': ( {'name': 'name', 'type': 'str', 'desc': 'The name of the XML tag.'}, {'name': 'nested', 'type': 'bool', 'default': True, 'desc': 'Set to $lib.false to only find direct children.'}, ), 'returns': {'type': 'generator', 'desc': 'A generator which yields xml:elements.'}}}, {'name': 'get', 'desc': 'Get a single child element by XML tag name.', 'type': {'type': 'function', '_funcname': 'get', 'args': ( {'name': 'name', 'type': 'str', 'desc': 'The name of the child XML element tag.'}, ), 'returns': {'type': 'xml:element', 'desc': 'The child XML element or $lib.null'}}}, ) def __init__(self, runt, elem): s_stormtypes.Prim.__init__(self, None) self.runt = runt self.elem = elem self.locls.update({ 'get': self.get, 'find': self.find, 'name': elem.tag, 'text': elem.text, 'attrs': elem.attrib, })
[docs] async def iter(self): for elem in self.elem: yield XmlElement(self.runt, elem)
[docs] async def find(self, name, nested=True): name = await s_stormtypes.tostr(name) nested = await s_stormtypes.tobool(nested) if nested: for elem in self.elem.iter(name): yield XmlElement(self.runt, elem) else: for elem in self.elem.findall(name): yield XmlElement(self.runt, elem)
[docs] async def get(self, name): name = await s_stormtypes.tostr(name) elem = self.elem.find(name) if elem is not None: return XmlElement(self.runt, elem)
[docs]@s_stormtypes.registry.registerLib class LibXml(s_stormtypes.Lib): ''' A Storm library for parsing XML. ''' _storm_lib_path = ('xml',) _storm_locals = ( {'name': 'parse', 'desc': 'Parse an XML string into an xml:element tree.', 'type': {'type': 'function', '_funcname': 'parse', 'args': ( {'name': 'valu', 'type': 'str', 'desc': 'The XML string to parse into an xml:element tree.'}, ), 'returns': {'type': 'xml:element', 'desc': 'An xml:element for the root node of the XML tree.'}, }}, )
[docs] def getObjLocals(self): return { 'parse': self.parse, }
[docs] async def parse(self, valu): valu = await s_stormtypes.tostr(valu) try: todo = (xml_et.fromstring, (valu,), {}) root = await s_coro.spawn(todo, log_conf=self.runt.spawn_log_conf) return XmlElement(self.runt, root) except xml_et.ParseError as e: raise s_exc.BadArg(mesg=f'Invalid XML text: {str(e)}')