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from __future__ import absolute_import, with_statement
import os
import collections
import xml.etree.ElementTree as ET
import six
if 'OrderedDict' in dir(collections):
odict = collections
else:
import ordereddict as odict
class InvalidOFXStructureException(Exception):
pass
class OfxData(object):
def __init__(self, tag):
self.nodes = odict.OrderedDict()
self.tag = tag
self.data = ""
def add_tag(self, name):
name = name.lower()
if name not in self.nodes:
self.nodes[name] = OfxData(name.upper())
return self.nodes[name]
elif not isinstance(self.nodes[name], list):
self.nodes[name] = [self.nodes[name], OfxData(name.upper())]
else:
self.nodes[name].append(OfxData(name.upper()))
return self.nodes[name][-1]
def del_tag(self, name):
name = name.lower()
if name in self.nodes:
del self.nodes[name]
def __setattr__(self, name, value):
if name in self.__dict__ or name in ['nodes', 'tag', 'data', '\
headers', 'xml']:
self.__dict__[name] = value
else:
self.del_tag(name)
if isinstance(value, list):
for val in value:
tag = self.add_tag(name)
tag.nodes = val.nodes
tag.data = val.data
elif isinstance(value, OfxData):
tag = self.add_tag(name)
tag.nodes = value.nodes
tag.data = value.data
else:
tag = self.add_tag(name)
tag.data = str(value)
def __getattr__(self, name):
if name in self.__dict__:
return self.__dict__[name]
elif name in self.__dict__['nodes']:
return self.__dict__['nodes'][name]
else:
tag = self.add_tag(name)
return tag
def __delattr__(self, name):
if name in self.__dict__:
del self.__dict__[name]
elif name in self.__dict__['nodes']:
del self.__dict__['nodes'][name]
else:
raise AttributeError
def __getitem__(self, name):
item_list = []
self.find(name, item_list)
return item_list
def find(self, name, item_list):
for n, child in six.iteritems(self.nodes):
if isinstance(child, OfxData):
if child.tag.lower() == name:
item_list.append(child)
child.find(name, item_list)
else:
for grandchild in child:
if grandchild.tag.lower() == name:
item_list.append(grandchild)
grandchild.find(name, item_list)
def __iter__(self):
for k, v in six.iteritems(self.nodes):
yield v
def __contains__(self, item):
return item in self.nodes
def __len__(self):
return len(self.nodes)
def __str__(self):
return os.linesep.join("\t" * line[1] + line[0] for line in
self.format())
def format(self):
if self.data or not self.nodes:
if self.tag.upper() == "OFX":
return [["<%s>%s</%s>" % (self.tag, self.data
if self.data else "", self.tag), 0]]
return [["<%s>%s" % (self.tag, self.data), 0]]
else:
ret = [["<%s>" % self.tag, -1]]
for _, child in six.iteritems(self.nodes):
if isinstance(child, OfxData):
ret.extend(child.format())
else:
for grandchild in child:
ret.extend(grandchild.format())
ret.append(["</%s>" % self.tag, -1])
for item in ret:
item[1] += 1
return ret
class OfxUtil(OfxData):
def __init__(self, ofx_data=None):
super(OfxUtil, self).__init__('OFX')
self.headers = odict.OrderedDict()
self.xml = ""
if ofx_data:
if isinstance(ofx_data, six.string_types) and not \
ofx_data.lower().endswith('.ofx'):
self.parse(ofx_data)
else:
self.parse(open(ofx_data).read() if isinstance(
ofx_data, six.string_types) else ofx_data.read())
def parse(self, ofx):
try:
for line in ofx.splitlines():
if line.strip() == "":
break
header, value = line.split(":")
self.headers[header] = value
except ValueError:
pass
finally:
if "OFXHEADER" not in self.headers:
self.headers["OFXHEADER"] = "100"
if "VERSION" not in self.headers:
self.headers["VERSION"] = "102"
if "SECURITY" not in self.headers:
self.headers["SECURITY"] = "NONE"
if "OLDFILEUID" not in self.headers:
self.headers["OLDFILEUID"] = "NONE"
if "NEWFILEUID" not in self.headers:
self.headers["NEWFILEUID"] = "NONE"
try:
tags = ofx.split("<")
if len(tags) > 1:
tags = ["<" + t.strip() for t in tags[1:]]
heirarchy = []
can_open = True
for i, tag in enumerate(tags):
gt = tag.index(">")
if tag[1] != "/":
# Is an opening tag
if not can_open:
tags[i - 1] = tags[i - 1] + "</" + \
heirarchy.pop() + ">"
can_open = True
tag_name = tag[1:gt].split()[0]
heirarchy.append(tag_name)
if len(tag) > gt + 1:
can_open = False
else:
# Is a closing tag
tag_name = tag[2:gt].split()[0]
if tag_name not in heirarchy:
# Close tag with no matching open, so delete it
tags[i] = tag[gt + 1:]
else:
# Close tag with matching open, but other open
# tags that need to be closed first
while(tag_name != heirarchy[-1]):
tags[i - 1] = tags[i - 1] + "</" + \
heirarchy.pop() + ">"
can_open = True
heirarchy.pop()
self.xml = ET.fromstringlist(tags)
self.load_from_xml(self, self.xml)
except Exception:
raise InvalidOFXStructureException
def load_from_xml(self, ofx, xml):
ofx.data = xml.text
for child in xml:
tag = ofx.add_tag(child.tag)
self.load_from_xml(tag, child)
def reload_xml(self):
super(OfxUtil, self).__init__('OFX')
self.load_from_xml(self, self.xml)
def write(self, output_file):
with open(output_file, 'wb') as f:
f.write(str(self))
def __str__(self):
ret = os.linesep.join(":".join(line) for line in
six.iteritems(self.headers)) + os.linesep * 2
ret += super(OfxUtil, self).__str__()
return ret
if __name__ == "__main__":
here = os.path.dirname(__file__)
fixtures = os.path.join(here, '../tests/fixtures/')
ofx = OfxUtil(fixtures + 'checking.ofx')
# ofx = OfxUtil(fixtures + 'fidelity.ofx')
# Manipulate OFX file via XML library
# for transaction in ofx.xml.iter('STMTTRN'):
# transaction.find('NAME').text = transaction.find('MEMO').text
# transaction.remove(transaction.find('MEMO'))
# ofx.reload_xml()
# Manipulate OFX file via object tree built from XML
# for transaction in ofx.bankmsgsrsv1.stmttrnrs.stmtrs.banktranlist.stmttrn:
# transaction.name = transaction.memo
# del transaction.memo
# transaction.notes = "Acknowledged"
# Modified sytnax for object tree data manipulation
# I'm using the __getitem__ method like the xml.iter method from
# ElementTree, as a recursive search
for transaction in ofx['stmttrn']:
transaction.name = transaction.memo
del transaction.memo
transaction.notes = "Acknowledged"
# for bal in ofx['bal']:
# print(bal)
# ofx.test = "First assignment operation"
# ofx.test = "Second assignment operation"
#
print(ofx)
# Write OFX data to output file
# ofx.write('out.ofx')
# for file_name in os.listdir(fixtures):
# if os.path.isfile(fixtures + file_name):
# print "Attempting to parse", file_name
# ofx = OfxParser('fixtures/' + file_name)
#
# file_parts = file_name.split(".")
# file_parts.insert(1, 'v2')
# with open('fixtures/' + ".".join(file_parts), 'wb') as f:
# f.write(str(ofx))
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