Mercurial > libervia-backend
annotate libervia/cli/xml_tools.py @ 4240:79c8a70e1813
backend, frontend: prepare remote control:
This is a series of changes necessary to prepare the implementation of remote control
feature:
- XEP-0166: add a `priority` attribute to `ApplicationData`: this is needed when several
applications are working in a same session, to know which one must be handled first.
Will be used to make Remote Control have precedence over Call content.
- XEP-0166: `_call_plugins` is now async and is not used with `DeferredList` anymore: the
benefit to have methods called in parallels is very low, and it cause a lot of trouble
as we can't predict order. Methods are now called sequentially so workflow can be
predicted.
- XEP-0167: fix `senders` XMPP attribute <=> SDP mapping
- XEP-0234: preflight acceptance key is now `pre-accepted` instead of `file-accepted`, so
the same key can be used with other jingle applications.
- XEP-0167, XEP-0343: move some method to XEP-0167
- XEP-0353: use new `priority` feature to call preflight methods of applications according
to it.
- frontend (webrtc): refactor the sources/sink handling with a more flexible mechanism
based on Pydantic models. It is now possible to have has many Data Channel as necessary,
to have them in addition to A/V streams, to specify manually GStreamer sources and
sinks, etc.
- frontend (webrtc): rework of the pipeline to reduce latency.
- frontend: new `portal_desktop` method. Screenshare portal handling has been moved there,
and RemoteDesktop portal has been added.
- frontend (webrtc): fix `extract_ufrag_pwd` method.
rel 436
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 11 May 2024 13:52:41 +0200 |
| parents | 47401850dec6 |
| children | 0d7bb4df2343 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 2777 | 3 |
|
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parents:
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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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Goffi <goffi@goffi.org>
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20 from libervia.backend.core.i18n import _ |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
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21 from libervia.cli.constants import Const as C |
| 2777 | 22 |
|
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parents:
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23 def etree_parse(cmd, raw_xml, reraise=False): |
|
524856bd7b19
massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
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24 """import lxml and parse raw XML |
| 2777 | 25 |
| 26 @param cmd(CommandBase): current command instance | |
| 27 @param raw_xml(file, str): an XML bytestring, string or file-like object | |
|
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jp (pubsub/node): new "import" command, to publish many nodes from an XML file
Goffi <goffi@goffi.org>
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28 @param reraise(bool): if True, re raise exception on parse error instead of doing a |
|
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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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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
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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 | |
|
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massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents:
3479
diff
changeset
|
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: | |
| 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 |