annotate sat_frontends/jp/xml_tools.py @ 3323:44a9438d6608

plugin email invitation: simple invitation creation The new `invitationSimpleCreate` is a simplified way to create an email invitation.
author Goffi <goffi@goffi.org>
date Sat, 01 Aug 2020 16:19:50 +0200
parents 559a625a236b
children be6d91572633
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1 #!/usr/bin/env python3
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2
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3
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4 # jp: a SàT command line tool
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5 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat_frontends.jp.constants import Const as C
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22
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23 def etreeParse(cmd, raw_xml, reraise=False):
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24 """Import lxml and parse raw XML
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25
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26 @param cmd(CommandBase): current command instance
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27 @param raw_xml(file, str): an XML bytestring, string or file-like object
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28 @param reraise(bool): if True, re raise exception on parse error instead of doing a
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29 parser.error (which terminate the execution)
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30 @return (tuple(etree.Element, module): parsed element, etree module
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31 """
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32 try:
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33 from lxml import etree
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34 except ImportError:
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35 cmd.disp(
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36 'lxml module must be installed, please install it with "pip install lxml"',
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37 error=True,
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38 )
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39 cmd.host.quit(C.EXIT_ERROR)
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40 try:
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41 if isinstance(raw_xml, str):
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42 parser = etree.XMLParser(remove_blank_text=True)
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43 element = etree.fromstring(raw_xml, parser)
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44 else:
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45 element = etree.parse(raw_xml).getroot()
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46 except Exception as e:
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47 if reraise:
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48 raise e
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49 cmd.parser.error(
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50 _("Can't parse the payload XML in input: {msg}").format(msg=e)
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51 )
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52 return element, etree
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54 def getPayload(cmd, element):
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55 """Retrieve payload element and exit with and error if not found
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56
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57 @param element(etree.Element): root element
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58 @return element(etree.Element): payload element
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59 """
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60 if element.tag in ("item", "{http://jabber.org/protocol/pubsub}item"):
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61 if len(element) > 1:
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62 cmd.disp(_("<item> can only have one child element (the payload)"),
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63 error=True)
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64 cmd.host.quit(C.EXIT_DATA_ERROR)
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65 element = element[0]
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66 return element