Mercurial > libervia-backend
view libervia/backend/plugins/plugin_xep_0055.py @ 4294:a0ed5c976bf8 default tip @
component conferences, plugin XEP-0167, XEP-0298: add stream user metadata:
A/V conference now adds user metadata about the stream it is forwarding through XEP-0298.
This is parsed and added to metadata during confirmation on client side.
rel 448
author | Goffi <goffi@goffi.org> |
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date | Tue, 06 Aug 2024 23:43:11 +0200 |
parents | 0d7bb4df2343 |
children |
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#!/usr/bin/env python3 # SAT plugin for Jabber Search (xep-0055) # Copyright (C) 2009-2021 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 libervia.backend.core.i18n import _, D_ from libervia.backend.core.log import getLogger log = getLogger(__name__) from twisted.words.protocols.jabber.xmlstream import IQ from twisted.words.protocols.jabber import jid from twisted.internet import defer from wokkel import data_form from libervia.backend.core.constants import Const as C from libervia.backend.core.exceptions import DataError from libervia.backend.tools import xml_tools from wokkel import disco, iwokkel try: from twisted.words.protocols.xmlstream import XMPPHandler except ImportError: from wokkel.subprotocols import XMPPHandler from zope.interface import implementer NS_SEARCH = "jabber:iq:search" PLUGIN_INFO = { C.PI_NAME: "Jabber Search", C.PI_IMPORT_NAME: "XEP-0055", C.PI_TYPE: "XEP", C.PI_PROTOCOLS: ["XEP-0055"], C.PI_DEPENDENCIES: [], C.PI_RECOMMENDATIONS: ["XEP-0059"], C.PI_MAIN: "XEP_0055", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _("""Implementation of Jabber Search"""), } # config file parameters CONFIG_SECTION = "plugin search" CONFIG_SERVICE_LIST = "service_list" DEFAULT_SERVICE_LIST = ["salut.libervia.org"] FIELD_SINGLE = "field_single" # single text field for the simple search FIELD_CURRENT_SERVICE = ( "current_service_jid" # read-only text field for the advanced search ) class XEP_0055(object): def __init__(self, host): log.info(_("Jabber search plugin initialization")) self.host = host # default search services (config file + hard-coded lists) self.services = [ jid.JID(entry) for entry in host.memory.config_get( CONFIG_SECTION, CONFIG_SERVICE_LIST, DEFAULT_SERVICE_LIST ) ] host.bridge.add_method( "search_fields_ui_get", ".plugin", in_sign="ss", out_sign="s", method=self._get_fields_ui, async_=True, ) host.bridge.add_method( "search_request", ".plugin", in_sign="sa{ss}s", out_sign="s", method=self._search_request, async_=True, ) self.__search_menu_id = host.register_callback(self._get_main_ui, with_data=True) host.import_menu( (D_("Contacts"), D_("Search directory")), self._get_main_ui, security_limit=1, help_string=D_("Search user directory"), ) def _get_host_services(self, profile): """Return the jabber search services associated to the user host. @param profile (unicode): %(doc_profile)s @return: list[jid.JID] """ client = self.host.get_client(profile) d = self.host.find_features_set(client, [NS_SEARCH]) return d.addCallback(lambda set_: list(set_)) ## Main search UI (menu item callback) ## def _get_main_ui(self, raw_data, profile): """Get the XMLUI for selecting a service and searching the directory. @param raw_data (dict): data received from the frontend @param profile (unicode): %(doc_profile)s @return: a deferred XMLUI string representation """ # check if the user's server offers some search services d = self._get_host_services(profile) return d.addCallback( lambda services: self.get_main_ui(services, raw_data, profile) ) def get_main_ui(self, services, raw_data, profile): """Get the XMLUI for selecting a service and searching the directory. @param services (list[jid.JID]): search services offered by the user server @param raw_data (dict): data received from the frontend @param profile (unicode): %(doc_profile)s @return: a deferred XMLUI string representation """ # extend services offered by user's server with the default services services.extend([service for service in self.services if service not in services]) data = xml_tools.xmlui_result_2_data_form_result(raw_data) main_ui = xml_tools.XMLUI( C.XMLUI_WINDOW, container="tabs", title=_("Search users"), submit_id=self.__search_menu_id, ) d = self._add_simple_search_ui(services, main_ui, data, profile) d.addCallback( lambda __: self._add_advanced_search_ui(services, main_ui, data, profile) ) return d.addCallback(lambda __: {"xmlui": main_ui.toXml()}) def _add_simple_search_ui(self, services, main_ui, data, profile): """Add to the main UI a tab for the simple search. Display a single input field and search on the main service (it actually does one search per search field and then compile the results). @param services (list[jid.JID]): search services offered by the user server @param main_ui (XMLUI): the main XMLUI instance @param data (dict): form data without SAT_FORM_PREFIX @param profile (unicode): %(doc_profile)s @return: a __ Deferred """ service_jid = services[ 0 ] # TODO: search on all the given services, not only the first one form = data_form.Form("form", formNamespace=NS_SEARCH) form.addField( data_form.Field( "text-single", FIELD_SINGLE, label=_("Search for"), value=data.get(FIELD_SINGLE, ""), ) ) sub_cont = main_ui.main_container.add_tab( "simple_search", label=_("Simple search"), container=xml_tools.VerticalContainer, ) main_ui.change_container(sub_cont.append(xml_tools.PairsContainer(main_ui))) xml_tools.data_form_2_widgets(main_ui, form) # FIXME: add colspan attribute to divider? (we are in a PairsContainer) main_ui.addDivider("blank") main_ui.addDivider("blank") # here we added a blank line before the button main_ui.addDivider("blank") main_ui.addButton(self.__search_menu_id, _("Search"), (FIELD_SINGLE,)) main_ui.addDivider("blank") main_ui.addDivider("blank") # a blank line again after the button simple_data = { key: value for key, value in data.items() if key in (FIELD_SINGLE,) } if simple_data: log.debug("Simple search with %s on %s" % (simple_data, service_jid)) sub_cont.parent.set_selected(True) main_ui.change_container( sub_cont.append(xml_tools.VerticalContainer(main_ui)) ) main_ui.addDivider("dash") d = self.search_request(service_jid, simple_data, profile) d.addCallbacks( lambda elt: self._display_search_result(main_ui, elt), lambda failure: main_ui.addText(failure.getErrorMessage()), ) return d return defer.succeed(None) def _add_advanced_search_ui(self, services, main_ui, data, profile): """Add to the main UI a tab for the advanced search. Display a service selector and allow to search on all the fields that are implemented by the selected service. @param services (list[jid.JID]): search services offered by the user server @param main_ui (XMLUI): the main XMLUI instance @param data (dict): form data without SAT_FORM_PREFIX @param profile (unicode): %(doc_profile)s @return: a __ Deferred """ sub_cont = main_ui.main_container.add_tab( "advanced_search", label=_("Advanced search"), container=xml_tools.VerticalContainer, ) service_selection_fields = ["service_jid", "service_jid_extra"] if "service_jid_extra" in data: # refresh button has been pushed, select the tab sub_cont.parent.set_selected(True) # get the selected service service_jid_s = data.get("service_jid_extra", "") if not service_jid_s: service_jid_s = data.get("service_jid", str(services[0])) log.debug("Refreshing search fields for %s" % service_jid_s) else: service_jid_s = data.get(FIELD_CURRENT_SERVICE, str(services[0])) services_s = [str(service) for service in services] if service_jid_s not in services_s: services_s.append(service_jid_s) main_ui.change_container(sub_cont.append(xml_tools.PairsContainer(main_ui))) main_ui.addLabel(_("Search on")) main_ui.addList("service_jid", options=services_s, selected=service_jid_s) main_ui.addLabel(_("Other service")) main_ui.addString(name="service_jid_extra") # FIXME: add colspan attribute to divider? (we are in a PairsContainer) main_ui.addDivider("blank") main_ui.addDivider("blank") # here we added a blank line before the button main_ui.addDivider("blank") main_ui.addButton( self.__search_menu_id, _("Refresh fields"), service_selection_fields ) main_ui.addDivider("blank") main_ui.addDivider("blank") # a blank line again after the button main_ui.addLabel(_("Displaying the search form for")) main_ui.addString(name=FIELD_CURRENT_SERVICE, value=service_jid_s, read_only=True) main_ui.addDivider("dash") main_ui.addDivider("dash") main_ui.change_container(sub_cont.append(xml_tools.VerticalContainer(main_ui))) service_jid = jid.JID(service_jid_s) d = self.get_fields_ui(service_jid, profile) d.addCallbacks( self._add_advanced_form, lambda failure: main_ui.addText(failure.getErrorMessage()), [service_jid, main_ui, sub_cont, data, profile], ) return d def _add_advanced_form(self, form_elt, service_jid, main_ui, sub_cont, data, profile): """Add the search form and the search results (if there is some to display). @param form_elt (domish.Element): form element listing the fields @param service_jid (jid.JID): current search service @param main_ui (XMLUI): the main XMLUI instance @param sub_cont (Container): the container of the current tab @param data (dict): form data without SAT_FORM_PREFIX @param profile (unicode): %(doc_profile)s @return: a __ Deferred """ field_list = data_form.Form.fromElement(form_elt).fieldList adv_fields = [field.var for field in field_list if field.var] adv_data = {key: value for key, value in data.items() if key in adv_fields} xml_tools.data_form_2_widgets(main_ui, data_form.Form.fromElement(form_elt)) # refill the submitted values # FIXME: wokkel's data_form.Form.fromElement doesn't parse the values, so we do it directly in XMLUI for now for widget in main_ui.current_container.elem.childNodes: name = widget.getAttribute("name") if adv_data.get(name): widget.setAttribute("value", adv_data[name]) # FIXME: add colspan attribute to divider? (we are in a PairsContainer) main_ui.addDivider("blank") main_ui.addDivider("blank") # here we added a blank line before the button main_ui.addDivider("blank") main_ui.addButton( self.__search_menu_id, _("Search"), adv_fields + [FIELD_CURRENT_SERVICE] ) main_ui.addDivider("blank") main_ui.addDivider("blank") # a blank line again after the button if adv_data: # display the search results log.debug("Advanced search with %s on %s" % (adv_data, service_jid)) sub_cont.parent.set_selected(True) main_ui.change_container( sub_cont.append(xml_tools.VerticalContainer(main_ui)) ) main_ui.addDivider("dash") d = self.search_request(service_jid, adv_data, profile) d.addCallbacks( lambda elt: self._display_search_result(main_ui, elt), lambda failure: main_ui.addText(failure.getErrorMessage()), ) return d return defer.succeed(None) def _display_search_result(self, main_ui, elt): """Display the search results. @param main_ui (XMLUI): the main XMLUI instance @param elt (domish.Element): form result element """ if [child for child in elt.children if child.name == "item"]: headers, xmlui_data = xml_tools.data_form_elt_result_2_xmlui_data(elt) if "jid" in headers: # use XMLUI JidsListWidget to display the results values = {} for i in range(len(xmlui_data)): header = list(headers.keys())[i % len(headers)] widget_type, widget_args, widget_kwargs = xmlui_data[i] value = widget_args[0] values.setdefault(header, []).append( jid.JID(value) if header == "jid" else value ) main_ui.addJidsList(jids=values["jid"], name=D_("Search results")) # TODO: also display the values other than JID else: xml_tools.xmlui_data_2_advanced_list(main_ui, headers, xmlui_data) else: main_ui.addText(D_("The search gave no result")) ## Retrieve the search fields ## def _get_fields_ui(self, to_jid_s, profile_key): """Ask a service to send us the list of the form fields it manages. @param to_jid_s (unicode): XEP-0055 compliant search entity @param profile_key (unicode): %(doc_profile_key)s @return: a deferred XMLUI instance """ d = self.get_fields_ui(jid.JID(to_jid_s), profile_key) d.addCallback(lambda form: xml_tools.data_form_elt_result_2_xmlui(form).toXml()) return d def get_fields_ui(self, to_jid, profile_key): """Ask a service to send us the list of the form fields it manages. @param to_jid (jid.JID): XEP-0055 compliant search entity @param profile_key (unicode): %(doc_profile_key)s @return: a deferred domish.Element """ client = self.host.get_client(profile_key) fields_request = IQ(client.xmlstream, "get") fields_request["from"] = client.jid.full() fields_request["to"] = to_jid.full() fields_request.addElement("query", NS_SEARCH) d = fields_request.send(to_jid.full()) d.addCallbacks(self._get_fields_ui_cb, self._get_fields_ui_eb) return d def _get_fields_ui_cb(self, answer): """Callback for self.get_fields_ui. @param answer (domish.Element): search query element @return: domish.Element """ try: query_elts = next(answer.elements("jabber:iq:search", "query")) except StopIteration: log.info(_("No query element found")) raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC try: form_elt = next(query_elts.elements(data_form.NS_X_DATA, "x")) except StopIteration: log.info(_("No data form found")) raise NotImplementedError( "Only search through data form is implemented so far" ) return form_elt def _get_fields_ui_eb(self, failure): """Errback to self.get_fields_ui. @param failure (defer.failure.Failure): twisted failure @raise: the unchanged defer.failure.Failure """ log.info(_("Fields request failure: %s") % str(failure.getErrorMessage())) raise failure ## Do the search ## def _search_request(self, to_jid_s, search_data, profile_key): """Actually do a search, according to filled data. @param to_jid_s (unicode): XEP-0055 compliant search entity @param search_data (dict): filled data, corresponding to the form obtained in get_fields_ui @param profile_key (unicode): %(doc_profile_key)s @return: a deferred XMLUI string representation """ d = self.search_request(jid.JID(to_jid_s), search_data, profile_key) d.addCallback(lambda form: xml_tools.data_form_elt_result_2_xmlui(form).toXml()) return d def search_request(self, to_jid, search_data, profile_key): """Actually do a search, according to filled data. @param to_jid (jid.JID): XEP-0055 compliant search entity @param search_data (dict): filled data, corresponding to the form obtained in get_fields_ui @param profile_key (unicode): %(doc_profile_key)s @return: a deferred domish.Element """ if FIELD_SINGLE in search_data: value = search_data[FIELD_SINGLE] d = self.get_fields_ui(to_jid, profile_key) d.addCallback( lambda elt: self.search_request_multi(to_jid, value, elt, profile_key) ) return d client = self.host.get_client(profile_key) search_request = IQ(client.xmlstream, "set") search_request["from"] = client.jid.full() search_request["to"] = to_jid.full() query_elt = search_request.addElement("query", NS_SEARCH) x_form = data_form.Form("submit", formNamespace=NS_SEARCH) x_form.makeFields(search_data) query_elt.addChild(x_form.toElement()) # TODO: XEP-0059 could be used here (with the needed new method attributes) d = search_request.send(to_jid.full()) d.addCallbacks(self._search_ok, self._search_err) return d def search_request_multi(self, to_jid, value, form_elt, profile_key): """Search for a value simultaneously in all fields, returns the results compilation. @param to_jid (jid.JID): XEP-0055 compliant search entity @param value (unicode): value to search @param form_elt (domish.Element): form element listing the fields @param profile_key (unicode): %(doc_profile_key)s @return: a deferred domish.Element """ form = data_form.Form.fromElement(form_elt) d_list = [] for field in [field.var for field in form.fieldList if field.var]: d_list.append(self.search_request(to_jid, {field: value}, profile_key)) def cb(result): # return the results compiled in one domish element result_elt = None for success, form_elt in result: if not success: continue if ( result_elt is None ): # the result element is built over the first answer result_elt = form_elt continue for item_elt in form_elt.elements("jabber:x:data", "item"): result_elt.addChild(item_elt) if result_elt is None: raise defer.failure.Failure( DataError(_("The search could not be performed")) ) return result_elt return defer.DeferredList(d_list).addCallback(cb) def _search_ok(self, answer): """Callback for self.search_request. @param answer (domish.Element): search query element @return: domish.Element """ try: query_elts = next(answer.elements("jabber:iq:search", "query")) except StopIteration: log.info(_("No query element found")) raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC try: form_elt = next(query_elts.elements(data_form.NS_X_DATA, "x")) except StopIteration: log.info(_("No data form found")) raise NotImplementedError( "Only search through data form is implemented so far" ) return form_elt def _search_err(self, failure): """Errback to self.search_request. @param failure (defer.failure.Failure): twisted failure @raise: the unchanged defer.failure.Failure """ log.info(_("Search request failure: %s") % str(failure.getErrorMessage())) raise failure @implementer(iwokkel.IDisco) class XEP_0055_handler(XMPPHandler): def __init__(self, plugin_parent, profile): self.plugin_parent = plugin_parent self.host = plugin_parent.host self.profile = profile def getDiscoInfo(self, requestor, target, nodeIdentifier=""): return [disco.DiscoFeature(NS_SEARCH)] def getDiscoItems(self, requestor, target, nodeIdentifier=""): return []