66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# jp: a SàT command line tool
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# Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from sat.core.i18n import _
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from sat_frontends.jp.constants import Const as C
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def etreeParse(cmd, raw_xml, reraise=False):
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"""Import lxml and parse raw XML
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@param cmd(CommandBase): current command instance
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@param raw_xml(file, str): an XML bytestring, string or file-like object
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@param reraise(bool): if True, re raise exception on parse error instead of doing a
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parser.error (which terminate the execution)
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@return (tuple(etree.Element, module): parsed element, etree module
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"""
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try:
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from lxml import etree
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except ImportError:
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cmd.disp(
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'lxml module must be installed, please install it with "pip install lxml"',
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error=True,
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)
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cmd.host.quit(C.EXIT_ERROR)
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try:
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if isinstance(raw_xml, str):
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parser = etree.XMLParser(remove_blank_text=True)
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element = etree.fromstring(raw_xml, parser)
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else:
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element = etree.parse(raw_xml).getroot()
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except Exception as e:
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if reraise:
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raise e
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cmd.parser.error(
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_("Can't parse the payload XML in input: {msg}").format(msg=e)
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)
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return element, etree
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def getPayload(cmd, element):
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"""Retrieve payload element and exit with and error if not found
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@param element(etree.Element): root element
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@return element(etree.Element): payload element
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"""
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if element.tag in ("item", "{http://jabber.org/protocol/pubsub}item"):
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if len(element) > 1:
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cmd.disp(_("<item> can only have one child element (the payload)"),
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error=True)
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cmd.host.quit(C.EXIT_DATA_ERROR)
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element = element[0]
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return element
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