Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_xep_0103.py @ 4202:b26339343076

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core: use a user specific directory for PID file: default location of pid file is now specific to logged user, this allow to run several instances of Libervia by different users on the same machine without PID conflicts.
author Goffi <goffi@goffi.org>
date Sun, 14 Jan 2024 17:48:02 +0100
parents 4b842c1fb686
children 0d7bb4df2343
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3895
eb0a77bea363 plugin XEP-0103: URL Address Information implementation:
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1 #!/usr/bin/env python3
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2
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3 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
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4
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5 # This program is free software: you can redistribute it and/or modify
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6 # it under the terms of the GNU Affero General Public License as published by
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7 # the Free Software Foundation, either version 3 of the License, or
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8 # (at your option) any later version.
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9
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10 # This program is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU Affero General Public License for more details.
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14
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15 # You should have received a copy of the GNU Affero General Public License
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16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18 from typing import Dict, Any
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19
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20 from twisted.words.xish import domish
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21
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22 from libervia.backend.core.constants import Const as C
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23 from libervia.backend.core.i18n import _
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24 from libervia.backend.core.log import getLogger
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25 from libervia.backend.core import exceptions
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26
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27 log = getLogger(__name__)
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28
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29
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30 PLUGIN_INFO = {
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31 C.PI_NAME: "URL Address Information",
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32 C.PI_IMPORT_NAME: "XEP-0103",
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33 C.PI_TYPE: "XEP",
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34 C.PI_MODES: C.PLUG_MODE_BOTH,
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35 C.PI_PROTOCOLS: ["XEP-0103"],
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36 C.PI_MAIN: "XEP_0103",
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37 C.PI_HANDLER: "no",
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38 C.PI_DESCRIPTION: _("""Implementation of XEP-0103 (URL Address Information)"""),
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39 }
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40
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41 NS_URL_DATA = "http://jabber.org/protocol/url-data"
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42
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43
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44 class XEP_0103:
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45 namespace = NS_URL_DATA
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46
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47 def __init__(self, host):
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48 log.info(_("XEP-0103 (URL Address Information) plugin initialization"))
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49 host.register_namespace("url-data", NS_URL_DATA)
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50
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51 def get_url_data_elt(
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52 self,
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53 url: str,
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54 **kwargs
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55 ) -> domish.Element:
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56 """Generate the element describing the URL
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57
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58 @param url: URL to use
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59 @param extra: extra metadata describing how to access the URL
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60 @return: ``<url-data/>`` element
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61 """
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62 url_data_elt = domish.Element((NS_URL_DATA, "url-data"))
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63 url_data_elt["target"] = url
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64 return url_data_elt
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65
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66 def parse_url_data_elt(
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67 self,
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68 url_data_elt: domish.Element
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69 ) -> Dict[str, Any]:
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70 """Parse <url-data/> element
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71
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72 @param url_data_elt: <url-data/> element
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73 a parent element can also be used
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74 @return: url-data data. It's a dict whose keys correspond to
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75 [get_url_data_elt] parameters
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76 @raise exceptions.NotFound: no <url-data/> element has been found
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77 """
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78 if url_data_elt.name != "url-data":
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79 try:
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80 url_data_elt = next(
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81 url_data_elt.elements(NS_URL_DATA, "url-data")
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82 )
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83 except StopIteration:
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84 raise exceptions.NotFound
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85 try:
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86 data: Dict[str, Any] = {"url": url_data_elt["target"]}
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87 except KeyError:
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88 raise ValueError(f'"target" attribute is missing: {url_data_elt.toXml}')
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89
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90 return data