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annotate libervia/cli/xml_tools.py @ 4340:ea72364131d5 default tip @
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Tue, 03 Dec 2024 00:53:18 +0100 |
| parents | 0d7bb4df2343 |
| children |
| rev | line source |
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| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 2777 | 3 |
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4 # Libervia CLI |
| 3479 | 5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
| 2777 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
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20 from libervia.backend.core.i18n import _ |
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Goffi <goffi@goffi.org>
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21 from libervia.cli.constants import Const as C |
| 2777 | 22 |
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23 |
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24 def etree_parse(cmd, raw_xml, reraise=False): |
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25 """import lxml and parse raw XML |
| 2777 | 26 |
| 27 @param cmd(CommandBase): current command instance | |
| 28 @param raw_xml(file, str): an XML bytestring, string or file-like object | |
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29 @param reraise(bool): if True, re raise exception on parse error instead of doing a |
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30 parser.error (which terminate the execution) |
| 2777 | 31 @return (tuple(etree.Element, module): parsed element, etree module |
| 32 """ | |
| 33 try: | |
| 34 from lxml import etree | |
| 35 except ImportError: | |
| 36 cmd.disp( | |
| 3028 | 37 'lxml module must be installed, please install it with "pip install lxml"', |
| 2777 | 38 error=True, |
| 39 ) | |
| 40 cmd.host.quit(C.EXIT_ERROR) | |
| 41 try: | |
| 3028 | 42 if isinstance(raw_xml, str): |
| 2777 | 43 parser = etree.XMLParser(remove_blank_text=True) |
| 44 element = etree.fromstring(raw_xml, parser) | |
| 45 else: | |
| 46 element = etree.parse(raw_xml).getroot() | |
| 47 except Exception as e: | |
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jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
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48 if reraise: |
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Goffi <goffi@goffi.org>
parents:
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49 raise e |
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50 cmd.parser.error(_("Can't parse the payload XML in input: {msg}").format(msg=e)) |
| 2777 | 51 return element, etree |
| 52 | |
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53 |
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Goffi <goffi@goffi.org>
parents:
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54 def get_payload(cmd, element): |
| 2777 | 55 """Retrieve payload element and exit with and error if not found |
| 56 | |
| 57 @param element(etree.Element): root element | |
| 58 @return element(etree.Element): payload element | |
| 59 """ | |
| 60 if element.tag in ("item", "{http://jabber.org/protocol/pubsub}item"): | |
| 61 if len(element) > 1: | |
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62 cmd.disp( |
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63 _("<item> can only have one child element (the payload)"), error=True |
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64 ) |
| 2777 | 65 cmd.host.quit(C.EXIT_DATA_ERROR) |
| 66 element = element[0] | |
| 67 return element |