def _upload_all_nonatomic(self, items, suffix=""):
"""Upload a new set of items.
This takes a list of vobject items and
uploads them nonatomic and without existence checks.
"""
cache_folder = os.path.join(self._filesystem_path,
".Radicale.cache", "item")
self._makedirs_synced(cache_folder)
hrefs = set()
for item in items:
uid = item.uid
try:
cache_content = self._item_cache_content(item)
except Exception as e:
raise ValueError(
"Failed to store item %r in temporary collection %r: %s" %
(uid, self.path, e)) from e
href_candidates = []
if os.name in ("nt", "posix"):
href_candidates.append(
lambda: uid if uid.lower().endswith(suffix.lower())
else uid + suffix)
href_candidates.extend((
lambda: radicale_item.get_etag(uid).strip('"') + suffix,
lambda: radicale_item.find_available_uid(hrefs.__contains__,
suffix)))
href = None
def replace_fn(source, target):
nonlocal href
while href_candidates:
href = href_candidates.pop(0)()
if href in hrefs:
continue
if not pathutils.is_safe_filesystem_path_component(href):
if not href_candidates:
raise pathutils.UnsafePathError(href)
continue
try:
return os.replace(source, pathutils.path_to_filesystem(
self._filesystem_path, href))
except OSError as e:
if href_candidates and (
os.name == "posix" and e.errno == 22 or
os.name == "nt" and e.errno == 123):
continue
raise
with self._atomic_write(os.path.join(self._filesystem_path, "ign"),
newline="", sync_directory=False,
replace_fn=replace_fn) as f:
f.write(item.serialize())
hrefs.add(href)
with self._atomic_write(os.path.join(cache_folder, href), "wb",
sync_directory=False) as f:
pickle.dump(cache_content, f)
self._sync_directory(cache_folder)
self._sync_directory(self._filesystem_path)
def _update_history_etag(self, href, item):
"""Updates and retrieves the history etag from the history cache.
The history cache contains a file for each current and deleted item
of the collection. These files contain the etag of the item (empty
string for deleted items) and a history etag, which is a hash over
the previous history etag and the etag separated by "/".
"""
history_folder = os.path.join(self._filesystem_path,
".Radicale.cache", "history")
try:
with open(os.path.join(history_folder, href), "rb") as f:
cache_etag, history_etag = pickle.load(f)
except (FileNotFoundError, pickle.UnpicklingError, ValueError) as e:
if isinstance(e, (pickle.UnpicklingError, ValueError)):
logger.warning(
"Failed to load history cache entry %r in %r: %s",
href, self.path, e, exc_info=True)
cache_etag = ""
# Initialize with random data to prevent collisions with cleaned
# expired items.
history_etag = binascii.hexlify(os.urandom(16)).decode("ascii")
etag = item.etag if item else ""
if etag != cache_etag:
self._makedirs_synced(history_folder)
history_etag = radicale_item.get_etag(
history_etag + "/" + etag).strip("\"")
try:
# Race: Other processes might have created and locked the file.
with self._atomic_write(os.path.join(history_folder, href),
"wb") as f:
pickle.dump([etag, history_etag], f)
except PermissionError:
pass
return history_etag
def _upload_all_nonatomic(self, items, suffix=""):
"""Upload a new set of items.
This takes a list of vobject items and
uploads them nonatomic and without existence checks.
"""
cache_folder = os.path.join(self._filesystem_path, ".Radicale.cache",
"item")
self._storage._makedirs_synced(cache_folder)
hrefs = set()
for item in items:
uid = item.uid
try:
cache_content = self._item_cache_content(item)
except Exception as e:
raise ValueError(
"Failed to store item %r in temporary collection %r: %s" %
(uid, self.path, e)) from e
href_candidate_funtions = []
if os.name in ("nt", "posix"):
href_candidate_funtions.append(lambda: uid if uid.lower(
).endswith(suffix.lower()) else uid + suffix)
href_candidate_funtions.extend(
(lambda: radicale_item.get_etag(uid).strip('"') + suffix,
lambda: radicale_item.find_available_uid(
hrefs.__contains__, suffix)))
href = f = None
while href_candidate_funtions:
href = href_candidate_funtions.pop(0)()
if href in hrefs:
continue
if not pathutils.is_safe_filesystem_path_component(href):
if not href_candidate_funtions:
raise pathutils.UnsafePathError(href)
continue
try:
f = open(pathutils.path_to_filesystem(
self._filesystem_path, href),
"w",
newline="",
encoding=self._encoding)
break
except OSError as e:
if href_candidate_funtions and (
os.name == "posix" and e.errno == 22
or os.name == "nt" and e.errno == 123):
continue
raise
with f:
f.write(item.serialize())
f.flush()
self._storage._fsync(f)
hrefs.add(href)
with open(os.path.join(cache_folder, href), "wb") as f:
pickle.dump(cache_content, f)
f.flush()
self._storage._fsync(f)
self._storage._sync_directory(cache_folder)
self._storage._sync_directory(self._filesystem_path)
def _update_history_etag(self, href, item):
"""Updates and retrieves the history etag from the history cache.
The history cache contains a file for each current and deleted item
of the collection. These files contain the etag of the item (empty
string for deleted items) and a history etag, which is a hash over
the previous history etag and the etag separated by "/".
"""
history_folder = os.path.join(self._filesystem_path, ".Radicale.cache",
"history")
try:
with open(os.path.join(history_folder, href), "rb") as f:
cache_etag, history_etag = pickle.load(f)
except (FileNotFoundError, pickle.UnpicklingError, ValueError) as e:
if isinstance(e, (pickle.UnpicklingError, ValueError)):
logger.warning(
"Failed to load history cache entry %r in %r: %s",
href,
self.path,
e,
exc_info=True)
cache_etag = ""
# Initialize with random data to prevent collisions with cleaned
# expired items.
history_etag = binascii.hexlify(os.urandom(16)).decode("ascii")
etag = item.etag if item else ""
if etag != cache_etag:
self._makedirs_synced(history_folder)
history_etag = radicale_item.get_etag(history_etag + "/" +
etag).strip("\"")
try:
# Race: Other processes might have created and locked the file.
with self._atomic_write(os.path.join(history_folder, href),
"wb") as f:
pickle.dump([etag, history_etag], f)
except PermissionError:
pass
return history_etag
def etag(self):
"""Encoded as quoted-string (see RFC 2616)."""
return get_etag(self.vobject_item.serialize())
