############################################################################## # # Copyright (c) 2003 Nexedi SARL and Contributors. All Rights Reserved. # Sebastien Robin <seb@nexedi.com> # # WARNING: This program as such is intended to be used by professional # programmers who take the whole responsability of assessing all potential # consequences resulting from its eventual inadequacies and bugs # End users who are looking for a ready-to-use solution with commercial # garantees and support are strongly adviced to contract a Free Software # Service Company # # This program is Free Software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # ############################################################################## import smtplib # to send emails from Publication import Publication,Subscriber from Subscription import Signature from xml.dom.ext.reader.Sax2 import FromXmlStream, FromXml from xml.dom.minidom import parse, parseString from XMLSyncUtils import XMLSyncUtils from Conduit.ERP5Conduit import ERP5Conduit from Products.CMFCore.utils import getToolByName import commands from zLOG import LOG class PublicationSynchronization(XMLSyncUtils): def PubSyncInit(self, publication=None, xml_client=None, subscriber=None, sync_type=None): """ Read the client xml message Send the first XML message from the server """ LOG('PubSyncInit',0,'Starting... publication: %s' % str(publication)) alert = None # Get informations from the body if xml_client is not None: # We have received a message last_anchor = self.getAlertLastAnchor(xml_client) next_anchor = self.getAlertNextAnchor(xml_client) alert = self.checkAlert(xml_client) alert_code = self.getAlertCode(xml_client) # If slow sync, then resend everything if alert_code == self.SLOW_SYNC: LOG('Warning !!!, reseting client synchronization for subscriber:',0,subscriber) subscriber.resetAllSignatures() # Check if the last time synchronization is the same as the client one if subscriber.getNextAnchor() != last_anchor: if last_anchor == None: LOG('PubSyncInit',0,'anchor null') else: message = "bad anchors in PubSyncInit! " + subscriber.getNextAnchor() + \ " and " + last_anchor LOG('PubSyncInit',0,message) else: subscriber.setNextAnchor(next_anchor) # We have to set every object as NOT_SYNCHRONIZED subscriber.startSynchronization() else: # We have started the sync from the server (may be for a conflict resolution) pass xml = "" #if alert is not None: if 1: # Prepare the xml message for the Sync initialization package cmd_id = 1 # specifies a SyncML message-unique command identifier xml = "" xml += '<SyncML>\n' # syncml header xml += self.SyncMLHeader(subscriber.getSessionId(), "1", subscriber.getSubscriptionUrl(), publication.getPublicationUrl()) # syncml body xml += ' <SyncBody>\n' # alert message xml += self.SyncMLAlert(cmd_id, sync_type, subscriber.getSubscriptionUrl(), publication.getPublicationUrl(), subscriber.getLastAnchor(), subscriber.getNextAnchor()) cmd_id += 1 xml += ' </SyncBody>\n' xml += '</SyncML>\n' self.sendResponse(from_url=publication.getPublicationUrl(), to_url=subscriber.getSubscriptionUrl(),sync_id=publication.getTitle(),xml=xml, domain=publication) return {'has_response':1,'xml':xml} def PubSync(self, id, msg=None, RESPONSE=None, subscriber=None): """ This is the synchronization method for the server """ LOG('PubSync',0,'Starting... id: %s' % str(id)) # Read the request from the client xml_client = msg if xml_client is None: xml_client = self.readResponse(from_url='file://tmp/sync_server') LOG('PubSync',0,'Starting... msg: %s' % str(xml_client)) result = None publication = self.getPublication(id) if xml_client is not None: if type(xml_client) in (type('a'),type(u'a')): xml_client = parseString(xml_client) first_node = xml_client.childNodes[0] if first_node.nodeName != "SyncML": LOG('PubSync',0,'This is not a SyncML Message') return alert_code = self.getAlertCode(xml_client) # Get informations from the header client_header = first_node.childNodes[1] if client_header.nodeName != "SyncHdr": LOG('PubSync',0,'This is not a SyncML Header') return for subnode in client_header.childNodes: if subnode.nodeType == subnode.ELEMENT_NODE and subnode.nodeName == "Source": subscription_url = str(subnode.childNodes[0].data) # Get the subscriber or create it if not already in the list subscriber = publication.getSubscriber(subscription_url) if subscriber == None: subscriber = Subscriber(publication.generateNewId(),subscription_url) subscriber.setXMLMapping(publication.getXMLMapping()) publication.addSubscriber(subscriber) # first synchronization result = self.PubSyncInit(publication,xml_client,subscriber=subscriber,sync_type=self.SLOW_SYNC) elif self.checkAlert(xml_client) and alert_code in (self.TWO_WAY,self.SLOW_SYNC): result = self.PubSyncInit(publication=publication, xml_client=xml_client, subscriber=subscriber,sync_type=alert_code) else: result = self.PubSyncModif(publication, xml_client) elif subscriber is not None: # This looks like we are starting a synchronization after # a conflict resolution by the user result = self.PubSyncInit(publication=publication, xml_client=None, subscriber=subscriber,sync_type=self.TWO_WAY) if RESPONSE is not None: RESPONSE.redirect('managePublications') elif result is not None: return result def PubSyncModif(self, publication, xml_client): """ The modidification message for the publication """ return self.SyncModif(publication,xml_client)