def LOCK(self, REQUEST, RESPONSE):
"""Lock a resource"""
from webdav.davcmds import Lock
self.dav__init(REQUEST, RESPONSE)
security = getSecurityManager()
creator = security.getUser()
body = REQUEST.get('BODY', '')
ifhdr = REQUEST.get_header('If', None)
depth = REQUEST.get_header('Depth', 'infinity')
alreadylocked = wl_isLocked(self)
if body and alreadylocked:
# This is a full LOCK request, and the Resource is
# already locked, so we need to raise the alreadylocked
# exception.
RESPONSE.setStatus(423)
elif body:
# This is a normal lock request with an XML payload
cmd = Lock(REQUEST)
token, result = cmd.apply(self, creator, depth=depth)
if result:
# Return the multistatus result (there were multiple
# errors. Note that davcmds.Lock.apply aborted the
# transaction already.
RESPONSE.setStatus(207)
RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"')
RESPONSE.setBody(result)
else:
# Success
lock = self.wl_getLock(token)
RESPONSE.setStatus(200)
RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"')
RESPONSE.setHeader('Lock-Token', 'opaquelocktoken:' + token)
RESPONSE.setBody(lock.asXML())
else:
# There's no body, so this likely to be a refresh request
if not ifhdr:
raise PreconditionFailed('If Header Missing')
taglist = IfParser(ifhdr)
found = 0
for tag in taglist:
for listitem in tag.list:
token = tokenFinder(listitem)
if token and self.wl_hasLock(token):
lock = self.wl_getLock(token)
timeout = REQUEST.get_header('Timeout', 'Infinite')
lock.setTimeout(timeout) # automatically refreshes
found = 1
RESPONSE.setStatus(200)
RESPONSE.setHeader('Content-Type',
'text/xml; charset="utf-8"')
RESPONSE.setBody(lock.asXML())
break
if found:
break
if not found:
RESPONSE.setStatus(412) # Precondition failed
return RESPONSE
def LOCK(self, REQUEST, RESPONSE):
""" A Lock command on a LockNull resource should only be a
refresh request (one without a body) """
self.dav__init(REQUEST, RESPONSE)
body = REQUEST.get('BODY', '')
ifhdr = REQUEST.get_header('If', '')
if body:
# If there's a body, then this is a full lock request
# which conflicts with the fact that we're already locked
RESPONSE.setStatus(423)
else:
# There's no body, so this is likely to be a refresh request
if not ifhdr:
raise PreconditionFailed
taglist = IfParser(ifhdr)
found = 0
for tag in taglist:
for listitem in tag.list:
token = tokenFinder(listitem)
if token and self.wl_hasLock(token):
lock = self.wl_getLock(token)
timeout = REQUEST.get_header('Timeout', 'infinite')
lock.setTimeout(timeout) # Automatically refreshes
found = 1
RESPONSE.setStatus(200)
RESPONSE.setHeader('Content-Type',
'text/xml; charset="utf-8"')
RESPONSE.setBody(lock.asXML())
if found: break
if not found:
RESPONSE.setStatus(412) # Precondition failed
return RESPONSE
def dav__simpleifhandler(self, request, response, method='PUT',
col=0, url=None, refresh=0):
ifhdr = request.get_header('If', None)
lockable = wl_isLockable(self)
if not lockable:
# degenerate case, we shouldnt have even called this method.
return None
locked = self.wl_isLocked()
if locked and (not ifhdr):
raise Locked('Resource is locked.')
if not ifhdr:
return None
# Since we're a simple if handler, and since some clients don't
# pass in the port information in the resource part of an If
# header, we're only going to worry about if the paths compare
if url is None:
url = urlfix(request['URL'], method)
url = urlbase(url) # Gets just the path information
# if 'col' is passed in, an operation is happening on a submember
# of a collection, while the Lock may be on the parent. Lob off
# the final part of the URL (ie '/a/b/foo.html' becomes '/a/b/')
if col:
url = url[:url.rfind('/') + 1]
found = 0
resourcetagged = 0
taglist = IfParser(ifhdr)
for tag in taglist:
if not tag.resource:
# There's no resource (url) with this tag
tag_list = [tokenFinder(x) for x in tag.list]
wehave = [t for t in tag_list if self.wl_hasLock(t)]
if not wehave:
continue
if tag.NOTTED:
continue
if refresh:
for token in wehave:
self.wl_getLock(token).refresh()
resourcetagged = 1
found = 1
break
elif unquote(urlbase(tag.resource)) == unquote(url):
resourcetagged = 1
tag_list = [tokenFinder(x) for x in tag.list]
wehave = [t for t in tag_list if self.wl_hasLock(t)]
if not wehave:
continue
if tag.NOTTED:
continue
if refresh:
for token in wehave:
self.wl_getLock(token).refresh()
found = 1
break
if resourcetagged and (not found):
raise PreconditionFailed('Condition failed.')
elif resourcetagged and found:
return 1
else:
return 0