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Merge pull request #624 from Unrud/improveerrors

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Small improvements for error handling
This commit is contained in:
Unrud 2017-06-06 23:32:44 +02:00 committed by GitHub
commit b30c1d11e5
10 changed files with 59 additions and 17 deletions
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12
radicale/__init__.py
View File

@ -788,6 +788,8 @@ class Application:
try:
items = list(vobject.readComponents(content or ""))
for item in items:
storage.check_item(item)
except Exception as e:
self.logger.warning(
"Bad PUT request on %r: %s", path, e, exc_info=True)
@ -797,13 +799,23 @@ class Application:
tag = tags.get(content_type)
if write_whole_collection:
try:
new_item = self.Collection.create_collection(
path, items, {"tag": tag})
except ValueError as e:
self.logger.warning(
"Bad PUT request on %r: %s", path, e, exc_info=True)
return BAD_REQUEST
else:
if tag:
parent_item.set_meta({"tag": tag})
href = posixpath.basename(path.strip("/"))
try:
new_item = parent_item.upload(href, items[0])
except ValueError as e:
self.logger.warning(
"Bad PUT request on %r: %s", path, e, exc_info=True)
return BAD_REQUEST
headers = {"ETag": new_item.etag}
return client.CREATED, headers, None

39
radicale/storage.py
View File

@ -27,7 +27,6 @@ entry.
import binascii
import contextlib
import errno
import json
import os
import pickle
@ -115,6 +114,20 @@ def load(configuration, logger):
return CollectionCopy
def check_item(vobject_item):
"""Check vobject items for common errors."""
if vobject_item.name == "VCALENDAR":
for component in vobject_item.components():
if (component.name in ("VTODO", "VEVENT", "VJOURNAL") and
not get_uid(component)):
raise ValueError("UID in %s is missing" % component.name)
elif vobject_item.name == "VCARD":
if not get_uid(vobject_item):
raise ValueError("UID in VCARD is missing")
else:
raise ValueError("Unknown item type: %r" % vobject_item.name)
def scandir(path, only_dirs=False, only_files=False):
"""Iterator for directory elements. (For compatibility with Python < 3.5)
@ -149,7 +162,7 @@ def get_etag(text):
def get_uid(item):
"""UID value of an item if defined."""
return hasattr(item, "uid") and item.uid.value
return (hasattr(item, "uid") or None) and item.uid.value
def sanitize_path(path):
@ -541,13 +554,14 @@ class Collection(BaseCollection):
self._sync_directory(directory)
@staticmethod
def _find_available_file_name(exists_fn):
def _find_available_file_name(exists_fn, suffix=""):
# Prevent infinite loop
for _ in range(10000):
file_name = hex(getrandbits(32))[2:]
for _ in range(1000):
file_name = "%016x" % getrandbits(64) + suffix
if not exists_fn(file_name):
return file_name
raise FileExistsError(errno.EEXIST, "No usable file name found")
# something is wrong with the PRNG
raise RuntimeError("No unique random sequence found")
@classmethod
def _fsync(cls, fd):
@ -690,15 +704,19 @@ class Collection(BaseCollection):
new_collection = vobject.iCalendar()
for item in items:
new_collection.add(item)
# href must comply to is_safe_filesystem_path_component
# and no file name collisions must exist between hrefs
href = self._find_available_file_name(
vobject_items.get)
vobject_items.get, suffix=".ics")
vobject_items[href] = new_collection
self.upload_all_nonatomic(vobject_items)
elif props.get("tag") == "VCARD":
vobject_items = {}
for card in collection:
# href must comply to is_safe_filesystem_path_component
# and no file name collisions must exist between hrefs
href = self._find_available_file_name(
vobject_items.get)
vobject_items.get, suffix=".vcf")
vobject_items[href] = card
self.upload_all_nonatomic(vobject_items)
@ -982,8 +1000,13 @@ class Collection(BaseCollection):
cinput_hash = cetag = ctext = ctag = cstart = cend = None
vobject_item = None
if input_hash != cinput_hash:
try:
vobject_item = Item(self, href=href,
text=btext.decode(self.encoding)).item
check_item(vobject_item)
except Exception as e:
raise RuntimeError("Failed to parse item %r from %r: %s" %
(href, self.path, e)) from e
# Serialize the object again, to normalize the text representation.
# The storage may have been edited externally.
ctext = vobject_item.serialize()

1
radicale/tests/static/todo2.ics
View File

@ -23,5 +23,6 @@ BEGIN:VTODO
DTSTART;TZID=Europe/Paris:20130901T180000
DUE;TZID=Europe/Paris:20130903T180000
RRULE:FREQ=MONTHLY
UID:todo2
END:VTODO
END:VCALENDAR

1
radicale/tests/static/todo3.ics
View File

@ -21,5 +21,6 @@ END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
DTSTART;TZID=Europe/Paris:20130901T180000
UID:todo3
END:VTODO
END:VCALENDAR

1
radicale/tests/static/todo4.ics
View File

@ -21,5 +21,6 @@ END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
DUE;TZID=Europe/Paris:20130901T180000
UID:todo4
END:VTODO
END:VCALENDAR

1
radicale/tests/static/todo5.ics
View File

@ -22,5 +22,6 @@ END:VTIMEZONE
BEGIN:VTODO
CREATED;TZID=Europe/Paris:20130903T180000
COMPLETED;TZID=Europe/Paris:20130920T180000
UID:todo5
END:VTODO
END:VCALENDAR

1
radicale/tests/static/todo6.ics
View File

@ -21,5 +21,6 @@ END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
COMPLETED;TZID=Europe/Paris:20130920T180000
UID:todo6
END:VTODO
END:VCALENDAR

1
radicale/tests/static/todo7.ics
View File

@ -21,5 +21,6 @@ END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
CREATED;TZID=Europe/Paris:20130803T180000
UID:todo7
END:VTODO
END:VCALENDAR

2
radicale/tests/static/todo8.ics
View File

@ -20,6 +20,6 @@ RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
END:STANDARD
END:VTIMEZONE
BEGIN:VTODO
UID:todo8
END:VTODO
END:VCALENDAR

7
radicale/tests/test_base.py
View File

@ -133,13 +133,13 @@ class BaseRequestsMixIn:
status, headers, answer = self.request("PUT", "/calendar.ics/", event)
assert status == 201
status, headers, answer = self.request(
"PUT", "/calendar.ics/event1.ics", event)
"PUT", "/calendar.ics/test_event.ics", event)
assert status == 201
# Overwrite
status, headers, answer = self.request("PUT", "/calendar.ics/", event)
assert status == 201
status, headers, answer = self.request(
"GET", "/calendar.ics/event1.ics")
"GET", "/calendar.ics/test_event.ics")
assert status == 404
def test_delete(self):
@ -263,8 +263,9 @@ class BaseRequestsMixIn:
filters_text = "".join(
"<C:filter>%s</C:filter>" % filter_ for filter_ in filters)
self.request("MKCOL", "/calendar.ics/")
self.request(
status, _, _ = self.request(
"PUT", "/calendar.ics/", "BEGIN:VCALENDAR\r\nEND:VCALENDAR")
assert status == 201
for i in range(items):
filename = "{}{}.ics".format(kind, i + 1)
event = get_file_content(filename)