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Some safety measures to avoid breaking old/new export and reformat with black

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This commit is contained in:
Oliver Falk
2021-09-15 11:29:44 +02:00
parent f288a97bad
commit 7c7de1e711
1 changed files with 61 additions and 37 deletions
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98
ivatar/ivataraccount/read_libravatar_export.py
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@@ -1,6 +1,7 @@
''' # -*- coding: utf-8 -*-
"""
Reading libravatar export Reading libravatar export
''' """
import binascii import binascii
from io import BytesIO from io import BytesIO
@@ -10,75 +11,98 @@ import base64
from PIL import Image from PIL import Image
SCHEMAROOT = 'https://www.libravatar.org/schemas/export/0.2' SCHEMAROOT = "https://www.libravatar.org/schemas/export/0.2"
def read_gzdata(gzdata=None): def read_gzdata(gzdata=None):
''' """
Read gzipped data file Read gzipped data file
''' """
emails = [] # pylint: disable=invalid-name emails = [] # pylint: disable=invalid-name
openids = [] # pylint: disable=invalid-name openids = [] # pylint: disable=invalid-name
photos = [] # pylint: disable=invalid-name photos = [] # pylint: disable=invalid-name
username = None # pylint: disable=invalid-name username = None # pylint: disable=invalid-name
password = None # pylint: disable=invalid-name password = None # pylint: disable=invalid-name
if not gzdata: if not gzdata:
return False return False
fh = gzip.open(BytesIO(gzdata), 'rb') # pylint: disable=invalid-name fh = gzip.open(BytesIO(gzdata), "rb") # pylint: disable=invalid-name
content = fh.read() content = fh.read()
fh.close() fh.close()
root = xml.etree.ElementTree.fromstring(content) root = xml.etree.ElementTree.fromstring(content)
if not root.tag == '{%s}user' % SCHEMAROOT: if not root.tag == "{%s}user" % SCHEMAROOT:
print('Unknown export format: %s' % root.tag) print("Unknown export format: %s" % root.tag)
exit(-1) exit(-1)
# Username # Username
for item in root.findall('{%s}account' % SCHEMAROOT)[0].items(): for item in root.findall("{%s}account" % SCHEMAROOT)[0].items():
if item[0] == 'username': if item[0] == "username":
username = item[1] username = item[1]
if item[0] == 'password': if item[0] == "password":
password = item[1] password = item[1]
# Emails # Emails
for email in root.findall('{%s}emails' % SCHEMAROOT)[0]: for email in root.findall("{%s}emails" % SCHEMAROOT)[0]:
if email.tag == '{%s}email' % SCHEMAROOT: if email.tag == "{%s}email" % SCHEMAROOT:
emails.append({'email': email.text, 'photo_id': email.attrib['photo_id']}) emails.append({"email": email.text, "photo_id": email.attrib["photo_id"]})
# OpenIDs # OpenIDs
for openid in root.findall('{%s}openids' % SCHEMAROOT)[0]: for openid in root.findall("{%s}openids" % SCHEMAROOT)[0]:
if openid.tag == '{%s}openid' % SCHEMAROOT: if openid.tag == "{%s}openid" % SCHEMAROOT:
openids.append({'openid': openid.text, 'photo_id': openid.attrib['photo_id']}) openids.append(
{"openid": openid.text, "photo_id": openid.attrib["photo_id"]}
)
# Photos # Photos
for photo in root.findall('{%s}photos' % SCHEMAROOT)[0]: for photo in root.findall("{%s}photos" % SCHEMAROOT)[0]:
if photo.tag == '{%s}photo' % SCHEMAROOT: if photo.tag == "{%s}photo" % SCHEMAROOT:
try: try:
data = base64.decodebytes(bytes(photo.text, 'utf-8')) # Safty measures to make sure we do not try to parse
# a binary encoded string
photo.text = photo.text.strip("'")
photo.text = photo.text.strip("\\n")
photo.text = photo.text.lstrip("b'")
data = base64.decodebytes(bytes(photo.text, "utf-8"))
except binascii.Error as exc: except binascii.Error as exc:
print('Cannot decode photo; Encoding: %s, Format: %s, Id: %s: %s' % ( print(
photo.attrib['encoding'], photo.attrib['format'], photo.attrib['id'], exc)) "Cannot decode photo; Encoding: %s, Format: %s, Id: %s: %s"
% (
photo.attrib["encoding"],
photo.attrib["format"],
photo.attrib["id"],
exc,
)
)
continue continue
try: try:
Image.open(BytesIO(data)) Image.open(BytesIO(data))
except Exception as exc: # pylint: disable=broad-except except Exception as exc: # pylint: disable=broad-except
print('Cannot decode photo; Encoding: %s, Format: %s, Id: %s: %s' % ( print(
photo.attrib['encoding'], photo.attrib['format'], photo.attrib['id'], exc)) "Cannot decode photo; Encoding: %s, Format: %s, Id: %s: %s"
% (
photo.attrib["encoding"],
photo.attrib["format"],
photo.attrib["id"],
exc,
)
)
continue continue
else: else:
# If it is a working image, we can use it # If it is a working image, we can use it
photo.text.replace('\n', '') photo.text.replace("\n", "")
photos.append({ photos.append(
'data': photo.text, {
'format': photo.attrib['format'], "data": photo.text,
'id': photo.attrib['id'], "format": photo.attrib["format"],
}) "id": photo.attrib["id"],
}
)
return { return {
'emails': emails, "emails": emails,
'openids': openids, "openids": openids,
'photos': photos, "photos": photos,
'username': username, "username": username,
'password': password, "password": password,
} }