Merge pull request #452 from orgads/bad-xml-crash

Fix crash on invalid XML output

Author: KimiNewt

src/pyshark/tshark/tshark_xml.py

@@ -22,7 +22,7 @@ def packet_from_xml_packet(xml_pkt, psml_structure=None):
     :return: Packet object.
     """
     if not isinstance(xml_pkt, lxml.objectify.ObjectifiedElement):
-        parser = lxml.objectify.makeparser(huge_tree=True)
+        parser = lxml.objectify.makeparser(huge_tree=True, recover=True)
         xml_pkt = lxml.objectify.fromstring(xml_pkt, parser)
     if psml_structure:
         return _packet_from_psml_packet(xml_pkt, psml_structure)
@@ -39,4 +39,4 @@ def _packet_from_pdml_packet(pdml_packet):
     return Packet(layers=layers, frame_info=frame, number=geninfo.get_field_value('num'),
                   length=geninfo.get_field_value('len'), sniff_time=geninfo.get_field_value('timestamp', raw=True),
                   captured_length=geninfo.get_field_value('caplen'),
-                  interface_captured=frame.get_field_value('interface_id', raw=True))
+                  interface_captured=frame.get_field_value('interface_id', raw=True))