Exemplo n.º 1
0
    def dav__simpleifhandler(self, request, response, method='PUT',
                             col=0, url=None, refresh=0):
        ifhdr = request.get_header('If', None)
        if Lockable.wl_isLocked(self) and (not ifhdr):
            raise Locked, "Resource is locked."

        if not ifhdr: return None
        if not Lockable.wl_isLocked(self): 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]

        havetag = lambda x, self=self: self.wl_hasLock(x)
        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 = map(tokenFinder, tag.list)
                wehave = filter(havetag, tag_list)

                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 urlbase(tag.resource) == url:
                resourcetagged = 1
                tag_list = map(tokenFinder, tag.list)
                wehave = filter(havetag, tag_list)

                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
Exemplo n.º 2
0
    def dav__simpleifhandler(self, request, response, method='PUT',
                             col=0, url=None, refresh=0):
        ifhdr = request.get_header('If', None)
        if Lockable.wl_isLocked(self) and (not ifhdr):
            raise Locked, "Resource is locked."

        if not ifhdr: return None
        if not Lockable.wl_isLocked(self): 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]

        havetag = lambda x, self=self: self.wl_hasLock(x)
        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 = map(tokenFinder, tag.list)
                wehave = filter(havetag, tag_list)

                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 urlbase(tag.resource) == url:
                resourcetagged = 1
                tag_list = map(tokenFinder, tag.list)
                wehave = filter(havetag, tag_list)

                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
Exemplo n.º 3
0
    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()
Exemplo n.º 4
0
    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()
Exemplo n.º 5
0
    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, valerrors:
            errmsg = "412 Precondition Failed"
Exemplo n.º 6
0
    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()
Exemplo n.º 7
0
    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()