Mercurial > libervia-backend
annotate sat_frontends/jp/xml_tools.py @ 3513:753d151da886
XEP-0277: new preview/mbPreview method:
This method does more or less the same thing as sending, but without actually sending the
item, and parse the generated element just after. This way, the triggers are run, and a
preview of the item can be made for the resulting microblog data.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 29 Apr 2021 15:49:59 +0200 |
| parents | be6d91572633 |
| children | 524856bd7b19 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 2777 | 3 |
| 4 # jp: a SàT command line tool | |
| 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 | |
| 20 from sat.core.i18n import _ | |
| 21 from sat_frontends.jp.constants import Const as C | |
| 22 | |
|
2804
710de41da2f2
jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
2777
diff
changeset
|
23 def etreeParse(cmd, raw_xml, reraise=False): |
| 2777 | 24 """Import lxml and parse raw XML |
| 25 | |
| 26 @param cmd(CommandBase): current command instance | |
| 27 @param raw_xml(file, str): an XML bytestring, string or file-like object | |
|
2804
710de41da2f2
jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
2777
diff
changeset
|
28 @param reraise(bool): if True, re raise exception on parse error instead of doing a |
|
710de41da2f2
jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
2777
diff
changeset
|
29 parser.error (which terminate the execution) |
| 2777 | 30 @return (tuple(etree.Element, module): parsed element, etree module |
| 31 """ | |
| 32 try: | |
| 33 from lxml import etree | |
| 34 except ImportError: | |
| 35 cmd.disp( | |
| 3028 | 36 'lxml module must be installed, please install it with "pip install lxml"', |
| 2777 | 37 error=True, |
| 38 ) | |
| 39 cmd.host.quit(C.EXIT_ERROR) | |
| 40 try: | |
| 3028 | 41 if isinstance(raw_xml, str): |
| 2777 | 42 parser = etree.XMLParser(remove_blank_text=True) |
| 43 element = etree.fromstring(raw_xml, parser) | |
| 44 else: | |
| 45 element = etree.parse(raw_xml).getroot() | |
| 46 except Exception as e: | |
|
2804
710de41da2f2
jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
2777
diff
changeset
|
47 if reraise: |
|
710de41da2f2
jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
parents:
2777
diff
changeset
|
48 raise e |
| 2777 | 49 cmd.parser.error( |
| 3028 | 50 _("Can't parse the payload XML in input: {msg}").format(msg=e) |
| 2777 | 51 ) |
| 52 return element, etree | |
| 53 | |
| 54 def getPayload(cmd, element): | |
| 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: | |
| 3028 | 62 cmd.disp(_("<item> can only have one child element (the payload)"), |
| 2777 | 63 error=True) |
| 64 cmd.host.quit(C.EXIT_DATA_ERROR) | |
| 65 element = element[0] | |
| 66 return element |