def HEAD(self, REQUEST, RESPONSE):
"""Retrieve resource information without a response body."""
self.dav__init(REQUEST, RESPONSE)
content_type=None
if hasattr(self, 'content_type'):
content_type=absattr(self.content_type)
if content_type is None:
url=urlfix(REQUEST['URL'], 'HEAD')
name=unquote(filter(None, url.split( '/')[-1]))
content_type, encoding=mimetypes.guess_type(name)
if content_type is None:
if hasattr(self, 'default_content_type'):
content_type=absattr(self.default_content_type)
if content_type is None:
content_type = 'application/octet-stream'
RESPONSE.setHeader('Content-Type', content_type.lower())
if hasattr(aq_base(self), 'get_size'):
RESPONSE.setHeader('Content-Length', absattr(self.get_size))
if hasattr(self, '_p_mtime'):
mtime=rfc1123_date(self._p_mtime)
RESPONSE.setHeader('Last-Modified', mtime)
if hasattr(aq_base(self), 'http__etag'):
etag = self.http__etag(readonly=1)
if etag:
RESPONSE.setHeader('Etag', etag)
RESPONSE.setStatus(200)
return RESPONSE
def HEAD(self, REQUEST, RESPONSE):
"""Retrieve resource information without a response body."""
self.dav__init(REQUEST, RESPONSE)
content_type=None
if hasattr(self, 'content_type'):
content_type=absattr(self.content_type)
if content_type is None:
url=urlfix(REQUEST['URL'], 'HEAD')
name=unquote(filter(None, url.split( '/')[-1]))
content_type, encoding=mimetypes.guess_type(name)
if content_type is None:
if hasattr(self, 'default_content_type'):
content_type=absattr(self.default_content_type)
if content_type is None:
content_type = 'application/octet-stream'
RESPONSE.setHeader('Content-Type', content_type.lower())
if hasattr(aq_base(self), 'get_size'):
RESPONSE.setHeader('Content-Length', absattr(self.get_size))
if hasattr(self, '_p_mtime'):
mtime=rfc1123_date(self._p_mtime)
RESPONSE.setHeader('Last-Modified', mtime)
if hasattr(aq_base(self), 'http__etag'):
etag = self.http__etag(readonly=1)
if etag:
RESPONSE.setHeader('Etag', etag)
RESPONSE.setStatus(200)
return RESPONSE
def apply(self, obj, token, url=None, result=None, top=1):
if result is None:
result = StringIO()
url = urlfix(url, 'UNLOCK')
url = urlbase(url)
iscol = isDavCollection(obj)
if iscol and url[-1] != '/':
url = url + '/'
errmsg = None
islockable = IWriteLock.providedBy(obj) or \
WriteLockInterface.isImplementedBy(obj)
if islockable and obj.wl_hasLock(token):
method = getattr(obj, 'wl_delLock')
vld = getSecurityManager().validate(None,obj,'wl_delLock',method)
if vld:
obj.wl_delLock(token)
else:
errmsg = "403 Forbidden"
elif not islockable:
# Only set an error message if the command is being applied
# to a top level object. Otherwise, we're descending a tree
# which may contain many objects that don't implement locking,
# so we just want to avoid them
if top:
errmsg = "405 Method Not Allowed"
if errmsg:
if top and (not iscol):
# We don't need to raise multistatus errors
if errmsg[:3] == '403':
raise Forbidden
else:
raise PreconditionFailed
elif not result.getvalue():
# We haven't had any errors yet, so our result is empty
# and we need to set up the XML header
result.write('<?xml version="1.0" encoding="utf-8" ?>\n' \
'<d:multistatus xmlns:d="DAV:">\n')
result.write('<d:response>\n <d:href>%s</d:href>\n' % url)
result.write(' <d:status>HTTP/1.1 %s</d:status>\n' % errmsg)
result.write('</d:response>\n')
if iscol:
for ob in obj.objectValues():
if hasattr(ob, '__dav_resource__') and \
(IWriteLock.providedBy(ob) or
WriteLockInterface.isImplementedBy(ob)):
uri = urljoin(url, absattr(ob.getId()))
self.apply(ob, token, uri, result, top=0)
if not top:
return result
if result.getvalue():
# One or more subitems probably failed, so close the multistatus
# element and clear out all succesful unlocks
result.write('</d:multistatus>')
transaction.abort()
return result.getvalue()
def apply(self, obj, token, user, url=None, result=None, top=1):
if result is None:
result = StringIO()
url = urlfix(url, 'DELETE')
url = urlbase(url)
iscol = isDavCollection(obj)
errmsg = None
parent = aq_parent(obj)
islockable = IWriteLock.providedBy(obj) or \
WriteLockInterface.isImplementedBy(obj)
if parent and (not user.has_permission('Delete objects', parent)):
# User doesn't have permission to delete this object
errmsg = "403 Forbidden"
elif islockable and obj.wl_isLocked():
if token and obj.wl_hasLock(token):
# Object is locked, and the token matches (no error)
errmsg = ""
else:
errmsg = "423 Locked"
if errmsg:
if top and (not iscol):
err = errmsg[4:]
raise err
elif not result.getvalue():
# We haven't had any errors yet, so our result is empty
# and we need to set up the XML header
result.write('<?xml version="1.0" encoding="utf-8" ?>\n' \
'<d:multistatus xmlns:d="DAV:">\n')
result.write('<d:response>\n <d:href>%s</d:href>\n' % url)
result.write(' <d:status>HTTP/1.1 %s</d:status>\n' % errmsg)
result.write('</d:response>\n')
if iscol:
for ob in obj.objectValues():
dflag = hasattr(ob,'_p_changed') and (ob._p_changed == None)
if hasattr(ob, '__dav_resource__'):
uri = urljoin(url, absattr(ob.getId()))
self.apply(ob, token, user, uri, result, top=0)
if dflag:
ob._p_deactivate()
if not top:
return result
if result.getvalue():
# One or more subitems can't be delted, so close the multistatus
# element
result.write('</d:multistatus>\n')
return result.getvalue()
def apply(self, obj, url=None, depth=0, result=None, top=1):
if result is None:
result=StringIO()
depth=self.depth
url=urlfix(self.request['URL'], 'PROPFIND')
url=urlbase(url)
result.write('<?xml version="1.0" encoding="utf-8"?>\n' \
'<d:multistatus xmlns:d="DAV:">\n')
iscol=isDavCollection(obj)
if iscol and url[-1] != '/': url=url+'/'
result.write('<d:response>\n<d:href>%s</d:href>\n' % safe_quote(url))
if hasattr(aq_base(obj), 'propertysheets'):
propsets=obj.propertysheets.values()
obsheets=obj.propertysheets
else:
davprops=DAVProps(obj)
propsets=(davprops,)
obsheets={'DAV:': davprops}
if self.allprop:
stats=[]
for ps in propsets:
if hasattr(aq_base(ps), 'dav__allprop'):
stats.append(ps.dav__allprop())
stats=''.join(stats) or '<d:status>200 OK</d:status>\n'
result.write(stats)
elif self.propname:
stats=[]
for ps in propsets:
if hasattr(aq_base(ps), 'dav__propnames'):
stats.append(ps.dav__propnames())
stats=''.join(stats) or '<d:status>200 OK</d:status>\n'
result.write(stats)
elif self.propnames:
rdict={}
for name, ns in self.propnames:
ps=obsheets.get(ns, None)
if ps is not None and hasattr(aq_base(ps), 'dav__propstat'):
stat=ps.dav__propstat(name, rdict)
else:
prop='<n:%s xmlns:n="%s"/>' % (name, ns)
code='404 Not Found'
if not rdict.has_key(code):
rdict[code]=[prop]
else: rdict[code].append(prop)
keys=rdict.keys()
keys.sort()
for key in keys:
result.write('<d:propstat>\n' \
' <d:prop>\n' \
)
map(result.write, rdict[key])
result.write(' </d:prop>\n' \
' <d:status>HTTP/1.1 %s</d:status>\n' \
'</d:propstat>\n' % key
)
else: raise 'Bad Request', 'Invalid request'
result.write('</d:response>\n')
if depth in ('1', 'infinity') and iscol:
for ob in obj.objectValues():
if hasattr(ob,"meta_type"):
if ob.meta_type=="Broken Because Product is Gone": continue
dflag=hasattr(ob, '_p_changed') and (ob._p_changed == None)
if hasattr(ob, '__locknull_resource__'):
# Do nothing, a null resource shouldn't show up to DAV
if dflag: ob._p_deactivate()
elif hasattr(ob, '__dav_resource__'):
uri=os.path.join(url, absattr(ob.id))
depth=depth=='infinity' and depth or 0
self.apply(ob, uri, depth, result, top=0)
if dflag: ob._p_deactivate()
if not top: return result
result.write('</d:multistatus>')
return result.getvalue()
if top and ((depth in (0, '0')) or (not iscol)):
# We don't need to raise multistatus errors
raise errmsg[4:]
elif not result.getvalue():
# We haven't had any errors yet, so our result is empty
# and we need to set up the XML header
result.write('<?xml version="1.0" encoding="utf-8" ?>\n' \
'<d:multistatus xmlns:d="DAV:">\n')
result.write('<d:response>\n <d:href>%s</d:href>\n' % url)
result.write(' <d:status>HTTP/1.1 %s</d:status>\n' % errmsg)
result.write('</d:response>\n')
if depth == 'infinity' and iscol:
for ob in obj.objectValues():
if hasattr(obj, '__dav_resource__'):
uri = os.path.join(url, absattr(ob.id))
self.apply(ob, creator, depth, token, result,
uri, top=0)
if not top: return token, result
if result.getvalue():
# One or more subitems probably failed, so close the multistatus
# element and clear out all succesful locks
result.write('</d:multistatus>')
get_transaction().abort() # This *SHOULD* clear all succesful locks
return token, result.getvalue()
class Unlock:
""" Model an Unlock request """
def apply(self, obj, token, url=None, result=None, top=1):
def apply(self, obj, creator=None, depth='infinity', token=None,
result=None, url=None, top=1):
""" Apply, built for recursion (so that we may lock subitems
of a collection if requested """
if result is None:
result = StringIO()
url = urlfix(self.request['URL'], 'LOCK')
url = urlbase(url)
iscol = isDavCollection(obj)
if iscol and url[-1] != '/':
url = url + '/'
errmsg = None
lock = None
try:
lock = LockItem(creator, self.owner, depth, self.timeout,
self.type, self.scope, token)
if token is None:
token = lock.getLockToken()
except ValueError:
errmsg = "412 Precondition Failed"
except:
errmsg = "403 Forbidden"
try:
if not (IWriteLock.providedBy(obj) or
WriteLockInterface.isImplementedBy(obj)):
if top:
# This is the top level object in the apply, so we
# do want an error
errmsg = "405 Method Not Allowed"
else:
# We're in an infinity request and a subobject does
# not support locking, so we'll just pass
pass
elif obj.wl_isLocked():
errmsg = "423 Locked"
else:
method = getattr(obj, 'wl_setLock')
vld = getSecurityManager().validate(None, obj, 'wl_setLock',
method)
if vld and token and (lock is not None):
obj.wl_setLock(token, lock)
else:
errmsg = "403 Forbidden"
except:
errmsg = "403 Forbidden"
if errmsg:
if top and ((depth in (0, '0')) or (not iscol)):
# We don't need to raise multistatus errors
raise errmsg[4:]
elif not result.getvalue():
# We haven't had any errors yet, so our result is empty
# and we need to set up the XML header
result.write('<?xml version="1.0" encoding="utf-8" ?>\n' \
'<d:multistatus xmlns:d="DAV:">\n')
result.write('<d:response>\n <d:href>%s</d:href>\n' % url)
result.write(' <d:status>HTTP/1.1 %s</d:status>\n' % errmsg)
result.write('</d:response>\n')
if depth == 'infinity' and iscol:
for ob in obj.objectValues():
if hasattr(obj, '__dav_resource__'):
uri = urljoin(url, absattr(ob.getId()))
self.apply(ob, creator, depth, token, result,
uri, top=0)
if not top:
return token, result
if result.getvalue():
# One or more subitems probably failed, so close the multistatus
# element and clear out all succesful locks
result.write('</d:multistatus>')
transaction.abort() # This *SHOULD* clear all succesful locks
return token, result.getvalue()
def MOVE(self, REQUEST, RESPONSE):
"""Move a resource to a new location. Though we may later try to
make a move appear seamless across namespaces (e.g. from Zope
to Apache), MOVE is currently only supported within the Zope
namespace."""
self.dav__init(REQUEST, RESPONSE)
self.dav__validate(self, 'DELETE', REQUEST)
if not hasattr(aq_base(self), 'cb_isMoveable') or \
not self.cb_isMoveable():
raise 'Method Not Allowed', 'This object may not be moved.'
dest=REQUEST.get_header('Destination', '')
try: path = REQUEST.physicalPathFromURL(dest)
except ValueError:
raise 'Bad Request', 'No destination given'
flag=REQUEST.get_header('Overwrite', 'F')
flag=flag.upper()
name = path.pop()
parent_path = '/'.join(path)
try: parent = self.restrictedTraverse(path)
except ValueError:
raise 'Conflict', 'Attempt to move to an unknown namespace.'
except 'Not Found':
raise 'Conflict', 'The resource %s must exist.' % parent_path
except:
t, v, tb=sys.exc_info()
raise t, v
if hasattr(parent, '__null_resource__'):
raise 'Conflict', 'The resource %s must exist.' % parent_path
existing=hasattr(aq_base(parent), name)
if existing and flag=='F':
raise 'Precondition Failed', 'Resource %s exists.' % dest
try: parent._checkId(name, allow_dup=1)
except:
raise 'Forbidden', sys.exc_info()[1]
try: parent._verifyObjectPaste(self)
except Unauthorized: raise
except: raise 'Forbidden', sys.exc_info()[1]
# Now check locks. Since we're affecting the resource that we're
# moving as well as the destination, we have to check both.
ifhdr = REQUEST.get_header('If', '')
if existing:
# The destination itself exists, so we need to check its locks
destob = aq_base(parent)._getOb(name)
if WriteLockInterface.isImplementedBy(destob) and \
destob.wl_isLocked():
if ifhdr:
itrue = destob.dav__simpleifhandler(
REQUEST, RESPONSE, 'MOVE', url=dest, refresh=1)
if not itrue: raise 'Precondition Failed'
else:
raise 'Locked', 'Destination is locked.'
elif WriteLockInterface.isImplementedBy(parent) and \
parent.wl_isLocked():
# There's no existing object in the destination folder, so
# we need to check the folders locks since we're changing its
# member list
if ifhdr:
itrue = parent.dav__simpleifhandler(REQUEST, RESPONSE, 'MOVE',
col=1, url=dest, refresh=1)
if not itrue: raise 'Precondition Failed', 'Condition failed.'
else:
raise 'Locked', 'Destination is locked.'
if Lockable.wl_isLocked(self):
# Lastly, we check ourselves
if ifhdr:
itrue = self.dav__simpleifhandler(REQUEST, RESPONSE, 'MOVE',
refresh=1)
if not itrue: raise 'Precondition Failed', 'Condition failed.'
else:
raise 'Precondition Failed', 'Source is locked and no '\
'condition was passed in.'
ob=aq_base(self._getCopy(parent))
self.aq_parent._delObject(absattr(self.id))
ob._setId(name)
if existing:
object=getattr(parent, name)
self.dav__validate(object, 'DELETE', REQUEST)
parent._delObject(name)
parent._setObject(name, ob)
RESPONSE.setStatus(existing and 204 or 201)
if not existing:
RESPONSE.setHeader('Location', dest)
RESPONSE.setBody('')
return RESPONSE
