Mercurial > libervia-backend
view sat/plugins/plugin_xep_0446.py @ 3913:944f51f9c2b4
core (xmpp): make `send` a blocking method, fix `sendMessageData` calls:
original `send` method is blocking, and it is used as such by Wokkel and thus can't be
changed to an async method easily. However, an Async method is necessary to have an async
trigger at the very end of the send workflow for end-to-end encryption. To workaround
that, `send` is an async method which call `a_send`, an async method which actually does
the sending. This way legacy method can still call `send` while `a_send` can be await
otherwise.
Fix calls to `sendMessageData`: the method now being an `async` one, `ensureDeferred` had
to be used in some calls.
author | Goffi <goffi@goffi.org> |
---|---|
date | Sat, 24 Sep 2022 16:31:39 +0200 |
parents | dbf0c7faaf49 |
children | 0ff265725489 |
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#!/usr/bin/env python3 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from logging import exception from typing import Optional, Union, Tuple, Dict, Any from pathlib import Path from twisted.words.xish import domish from sat.core.constants import Const as C from sat.core.i18n import _ from sat.core.log import getLogger from sat.core import exceptions from sat.tools import utils log = getLogger(__name__) PLUGIN_INFO = { C.PI_NAME: "File Metadata Element", C.PI_IMPORT_NAME: "XEP-0446", C.PI_TYPE: "XEP", C.PI_MODES: C.PLUG_MODE_BOTH, C.PI_PROTOCOLS: ["XEP-0446"], C.PI_DEPENDENCIES: ["XEP-0300"], C.PI_MAIN: "XEP_0446", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _("""Implementation of XEP-0446 (File Metadata Element)"""), } NS_FILE_METADATA = "urn:xmpp:file:metadata:0" class XEP_0446: def __init__(self, host): log.info(_("XEP-0446 (File Metadata Element) plugin initialization")) host.registerNamespace("file-metadata", NS_FILE_METADATA) self._hash = host.plugins["XEP-0300"] def get_file_metadata_elt( self, name: Optional[str] = None, media_type: Optional[str] = None, desc: Optional[str] = None, size: Optional[int] = None, file_hash: Optional[Tuple[str, str]] = None, date: Optional[Union[float, int]] = None, width: Optional[int] = None, height: Optional[int] = None, length: Optional[int] = None, thumbnail: Optional[str] = None, ) -> domish.Element: """Generate the element describing a file @param name: name of the file @param media_type: media-type @param desc: description @param size: size in bytes @param file_hash: (algo, hash) @param date: timestamp of the last modification datetime @param width: image width in pixels @param height: image height in pixels @param length: video length in seconds @param thumbnail: URL to a thumbnail @return: ``<file/>`` element """ if name: name = Path(name).name file_elt = domish.Element((NS_FILE_METADATA, "file")) for name, value in ( ("name", name), ("media-type", media_type), ("desc", desc), ("size", size), ("width", width), ("height", height), ("length", length), ): if value is not None: file_elt.addElement(name, content=str(value)) if file_hash is not None: hash_algo, hash_ = file_hash file_elt.addChild(self._hash.buildHashElt(hash_, hash_algo)) if date is not None: file_elt.addElement("date", utils.xmpp_date(date)) if thumbnail is not None: # TODO: implement thumbnails log.warning("thumbnail is not implemented yet") return file_elt def parse_file_metadata_elt( self, file_metadata_elt: domish.Element ) -> Dict[str, Any]: """Parse <file-metadata/> element @param file_metadata_elt: <file-metadata/> element a parent element can also be used @return: file-metadata data. It's a dict whose keys correspond to [get_file_metadata_elt] parameters @raise exceptions.NotFound: no <file-metadata/> element has been found """ if file_metadata_elt.name != "file-metadata": try: file_metadata_elt = next( file_metadata_elt.elements(NS_FILE_METADATA, "file-metadata") ) except StopIteration: raise exceptions.NotFound data: Dict[str, Any] = {} for key, type_ in ( ("name", str), ("media-type", str), ("desc", str), ("size", int), ("date", "timestamp"), ("width", int), ("height", int), ("length", int), ): elt = next(file_metadata_elt.elements(NS_FILE_METADATA, key), None) if elt is not None: if type_ in (str, int): content = str(elt) if key == "name": # we avoid malformed names or names containing path elements content = Path(content).name elif key == "media-type": key = "media_type" data[key] = type_(content) elif type == "timestamp": data[key] = utils.parse_xmpp_date(str(elt)) else: raise exceptions.InternalError try: algo, hash_ = self._hash.parseHashElt(file_metadata_elt) except exceptions.NotFound: pass except exceptions.DataError: from sat.tools.xml_tools import pFmtElt log.warning("invalid <hash/> element:\n{pFmtElt(file_metadata_elt)}") else: data["file_hash"] = (algo, hash_.decode()) # TODO: thumbnails return data