New ERP5 SyncML implementation
Complete rewrite of the syncml core engine to make it scallable Remaining work : - review of conflict management - re-implement splitting of big object - generic unit test for AsynchronousEngine - complete review of default conduit - lot of TODO and XXX in the code to check
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| # -*- coding: utf-8 -*- | ||
| ## Copyright (c) 2012 Nexedi SARL and Contributors. All Rights Reserved. | ||
| # Aurélien Calonne <aurel@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. | ||
| # | ||
| ############################################################################## | ||
| from os import environ | ||
| from logging import getLogger | ||
| from requests import post | ||
| syncml_logger = getLogger('ERP5SyncML') | ||
| class ConnectionError(Exception): | ||
| pass | ||
| class HTTPTransport: | ||
| def getProxyMapping(self): | ||
| """ | ||
| Return a mapping of protocol to proxy | ||
| Based on environment variable | ||
| """ | ||
| return {'http' : environ.get('http_proxy'), | ||
| 'https' : environ.get('https_proxy'), | ||
| } | ||
| def getHeaders(self, content_type, xml): | ||
| """ | ||
| SyncML defined specifications about http bindings | ||
| Follow advices given about headerds | ||
| """ | ||
| return { | ||
| # XXX- Syncml content-type is not supported by Zope server | ||
| # for now disable it until ZServer get patched | ||
| # 'Content-Type' : content_type, | ||
| # 'Content-Length' : str(len(xml)), XXX-Bad way to compute length | ||
| 'Cache-control' : 'no-store', | ||
| 'Transfer-encoding' : 'chunked', | ||
|
||
| 'Accept' : 'application/vnd.syncml+xml', | ||
| 'Accept-Charset' : 'UTF-8', | ||
| 'User-Agent' : 'ERP5SyncML Tool', | ||
| } | ||
| def send(self, to_url, data, sync_id, content_type): | ||
| syncml_logger.debug("HTTP.send : %s" %(to_url,)) | ||
| data = { | ||
| 'text' : data, | ||
| 'sync_id': sync_id | ||
| } | ||
| r = post(to_url,data=data, | ||
| headers=self.getHeaders(content_type, data), | ||
| timeout=60, | ||
| proxies=self.getProxyMapping()) | ||
| syncml_logger.debug("Status code : %s - %s" %(r.status_code, r.headers)) | ||
| r.raise_for_status() | ||
