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): """ LOCK on a Null Resource makes a LockNullResource instance """ self.dav__init(REQUEST, RESPONSE) security = getSecurityManager() creator = security.getUser() body = REQUEST.get('BODY', '') ifhdr = REQUEST.get_header('If', '') depth = REQUEST.get_header('Depth', 'infinity') name = self.__name__ parent = self.__parent__ if isinstance(parent, NullResource): # Can happen if someone specified a bad path to # the object. Missing path elements may be created # as NullResources. Give up in this case. raise BadRequest('Parent %s does not exist' % parent.__name__) if IWriteLock.providedBy(parent) and parent.wl_isLocked(): if ifhdr: parent.dav__simpleifhandler(REQUEST, RESPONSE, col=1) else: raise Locked if not body: # No body means refresh lock, which makes no sense on # a null resource. But if the parent is locked it can be # interpreted as an indirect refresh lock for the parent. return parent.LOCK(REQUEST, RESPONSE) elif ifhdr: # There was an If header, but the parent is not locked. raise PreconditionFailed # The logic involved in locking a null resource is simpler than # a regular resource, since we know we're not already locked, # and the lock isn't being refreshed. if not body: raise BadRequest('No body was in the request') locknull = LockNullResource(name) parent._setObject(name, locknull) locknull = parent._getOb(name) cmd = Lock(REQUEST) token, result = cmd.apply(locknull, creator, depth=depth) if result: # Return the multistatus result (there were multiple errors) # This *shouldn't* happen for locking a NullResource, but it's # inexpensive to handle and is good coverage for any future # changes in davcmds.Lock RESPONSE.setStatus(207) RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"') RESPONSE.setBody(result) else: # The command was succesful lock = locknull.wl_getLock(token) RESPONSE.setStatus(201) RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"') RESPONSE.setHeader('Lock-Token', 'opaquelocktoken:' + token) RESPONSE.setBody(lock.asXML())
def LOCK(self, REQUEST, RESPONSE): """ LOCK on a Null Resource makes a LockNullResource instance """ self.dav__init(REQUEST, RESPONSE) security = getSecurityManager() creator = security.getUser() body = REQUEST.get('BODY', '') ifhdr = REQUEST.get_header('If', '') depth = REQUEST.get_header('Depth', 'infinity') name = self.__name__ parent = self.__parent__ if IWriteLock.providedBy(parent) and parent.wl_isLocked(): if ifhdr: parent.dav__simpleifhandler(REQUEST, RESPONSE, col=1) else: raise Locked elif ifhdr: # There was an If header, but the parent is not locked. raise PreconditionFailed # The logic involved in locking a null resource is simpler than # a regular resource, since we know we're not already locked, # and the lock isn't being refreshed. if not body: raise BadRequest, 'No body was in the request' locknull = LockNullResource(name) parent._setObject(name, locknull) locknull = parent._getOb(name) cmd = Lock(REQUEST) token, result = cmd.apply(locknull, creator, depth=depth) if result: # Return the multistatus result (there were multiple errors) # This *shouldn't* happen for locking a NullResource, but it's # inexpensive to handle and is good coverage for any future # changes in davcmds.Lock RESPONSE.setStatus(207) RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"') RESPONSE.setBody(result) else: # The command was succesful lock = locknull.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())