vdirsyncer/vdirsyncer/repair.py
2017-02-11 20:24:55 +01:00

65 lines
2 KiB
Python

# -*- coding: utf-8 -*-
import logging
from os.path import basename
from .utils import generate_href, href_safe
logger = logging.getLogger(__name__)
class IrreparableItem(Exception):
pass
def repair_storage(storage, repair_unsafe_uid):
seen_uids = set()
all_hrefs = list(storage.list())
for i, (href, _) in enumerate(all_hrefs):
item, etag = storage.get(href)
logger.info(u'[{}/{}] Processing {}'
.format(i, len(all_hrefs), href))
try:
new_item = repair_item(href, item, seen_uids, repair_unsafe_uid)
except IrreparableItem:
logger.error('Item {!r} is malformed beyond repair. '
'The PRODID property may indicate which software '
'created this item.'
.format(href))
logger.error('Item content: {!r}'.format(item.raw))
continue
seen_uids.add(new_item.uid)
if new_item.raw != item.raw:
if new_item.uid != item.uid:
storage.upload(new_item)
storage.delete(href, etag)
else:
storage.update(href, new_item, etag)
def repair_item(href, item, seen_uids, repair_unsafe_uid):
if item.parsed is None:
raise IrreparableItem()
new_item = item
if not item.uid:
logger.warning('No UID, assigning random UID.')
new_item = item.with_uid(generate_href())
elif item.uid in seen_uids:
logger.warning('Duplicate UID, assigning random UID.')
new_item = item.with_uid(generate_href())
elif not href_safe(item.uid) or not href_safe(basename(href)):
if not repair_unsafe_uid:
logger.warning('UID may cause problems, add '
'--repair-unsafe-uid to repair.')
else:
logger.warning('UID or href is unsafe, assigning random UID.')
new_item = item.with_uid(generate_href())
if not new_item.uid:
raise IrreparableItem()
return new_item