Mercurial > libervia-backend
view src/plugins/plugin_xep_0055.py @ 2195:d65275ac39b3
plugin XEP-0060: renamed psGet bridge method to psItemGet
author | Goffi <goffi@goffi.org> |
---|---|
date | Mon, 13 Mar 2017 23:17:13 +0100 |
parents | a543eda2c923 |
children | 918e38622a48 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT plugin for Jabber Search (xep-0055) # Copyright (C) 2009-2016 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 sat.core.i18n import _, D_ from sat.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 sat.core.constants import Const as C from sat.core.exceptions import DataError from sat.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 implements 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.getConfig(CONFIG_SECTION, CONFIG_SERVICE_LIST, DEFAULT_SERVICE_LIST)] host.bridge.addMethod("searchGetFieldsUI", ".plugin", in_sign='ss', out_sign='s', method=self._getFieldsUI, async=True) host.bridge.addMethod("searchRequest", ".plugin", in_sign='sa{ss}s', out_sign='s', method=self._searchRequest, async=True) self.__search_menu_id = host.registerCallback(self._getMainUI, with_data=True) host.importMenu((D_("Contacts"), D_("Search directory")), self._getMainUI, security_limit=1, help_string=D_("Search user directory")) def _getHostServices(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.getClient(profile) d = self.host.findFeaturesSet(client, [NS_SEARCH]) return d.addCallback(lambda set_: list(set_)) ## Main search UI (menu item callback) ## def _getMainUI(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._getHostServices(profile) return d.addCallback(lambda services: self.getMainUI(services, raw_data, profile)) def getMainUI(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.XMLUIResult2DataFormResult(raw_data) main_ui = xml_tools.XMLUI(C.XMLUI_WINDOW, container="tabs", title=_("Search users"), submit_id=self.__search_menu_id) d = self._addSimpleSearchUI(services, main_ui, data, profile) d.addCallback(lambda dummy: self._addAdvancedSearchUI(services, main_ui, data, profile)) return d.addCallback(lambda dummy: {'xmlui': main_ui.toXml()}) def _addSimpleSearchUI(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 dummy 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.addTab("simple_search", label=_("Simple search"), container=xml_tools.VerticalContainer) main_ui.changeContainer(sub_cont.append(xml_tools.PairsContainer(main_ui))) xml_tools.dataForm2Widgets(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.iteritems() if key in (FIELD_SINGLE,)} if simple_data: log.debug("Simple search with %s on %s" % (simple_data, service_jid)) sub_cont.parent.setSelected(True) main_ui.changeContainer(sub_cont.append(xml_tools.VerticalContainer(main_ui))) main_ui.addDivider('dash') d = self.searchRequest(service_jid, simple_data, profile) d.addCallbacks(lambda elt: self._displaySearchResult(main_ui, elt), lambda failure: main_ui.addText(failure.getErrorMessage())) return d return defer.succeed(None) def _addAdvancedSearchUI(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 dummy Deferred """ sub_cont = main_ui.main_container.addTab("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.setSelected(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', unicode(services[0])) log.debug("Refreshing search fields for %s" % service_jid_s) else: service_jid_s = data.get(FIELD_CURRENT_SERVICE, unicode(services[0])) services_s = [unicode(service) for service in services] if service_jid_s not in services_s: services_s.append(service_jid_s) main_ui.changeContainer(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.changeContainer(sub_cont.append(xml_tools.VerticalContainer(main_ui))) service_jid = jid.JID(service_jid_s) d = self.getFieldsUI(service_jid, profile) d.addCallbacks(self._addAdvancedForm, lambda failure: main_ui.addText(failure.getErrorMessage()), [service_jid, main_ui, sub_cont, data, profile]) return d def _addAdvancedForm(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 dummy 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.iteritems() if key in adv_fields} xml_tools.dataForm2Widgets(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.setSelected(True) main_ui.changeContainer(sub_cont.append(xml_tools.VerticalContainer(main_ui))) main_ui.addDivider('dash') d = self.searchRequest(service_jid, adv_data, profile) d.addCallbacks(lambda elt: self._displaySearchResult(main_ui, elt), lambda failure: main_ui.addText(failure.getErrorMessage())) return d return defer.succeed(None) def _displaySearchResult(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.dataFormResult2XMLUIData(elt) if "jid" in headers: # use XMLUI JidsListWidget to display the results values = {} for i in range(len(xmlui_data)): header = 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_(u"Search results")) # TODO: also display the values other than JID else: xml_tools.XMLUIData2AdvancedList(main_ui, headers, xmlui_data) else: main_ui.addText(D_("The search gave no result")) ## Retrieve the search fields ## def _getFieldsUI(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.getFieldsUI(jid.JID(to_jid_s), profile_key) d.addCallback(lambda form: xml_tools.dataFormResult2XMLUI(form).toXml()) return d def getFieldsUI(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.getClient(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._getFieldsUICb, self._getFieldsUIEb) return d def _getFieldsUICb(self, answer): """Callback for self.getFieldsUI. @param answer (domish.Element): search query element @return: domish.Element """ try: query_elts = answer.elements('jabber:iq:search', 'query').next() except StopIteration: log.info(_("No query element found")) raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC try: form_elt = query_elts.elements(data_form.NS_X_DATA, 'x').next() except StopIteration: log.info(_("No data form found")) raise NotImplementedError("Only search through data form is implemented so far") return form_elt def _getFieldsUIEb(self, failure): """Errback to self.getFieldsUI. @param failure (defer.failure.Failure): twisted failure @raise: the unchanged defer.failure.Failure """ log.info(_("Fields request failure: %s") % unicode(failure.getErrorMessage())) raise failure ## Do the search ## def _searchRequest(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 getFieldsUI @param profile_key (unicode): %(doc_profile_key)s @return: a deferred XMLUI string representation """ d = self.searchRequest(jid.JID(to_jid_s), search_data, profile_key) d.addCallback(lambda form: xml_tools.dataFormResult2XMLUI(form).toXml()) return d def searchRequest(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 getFieldsUI @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.getFieldsUI(to_jid, profile_key) d.addCallback(lambda elt: self.searchRequestMulti(to_jid, value, elt, profile_key)) return d client = self.host.getClient(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._searchOk, self._searchErr) return d def searchRequestMulti(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.searchRequest(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 _searchOk(self, answer): """Callback for self.searchRequest. @param answer (domish.Element): search query element @return: domish.Element """ try: query_elts = answer.elements('jabber:iq:search', 'query').next() except StopIteration: log.info(_("No query element found")) raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC try: form_elt = query_elts.elements(data_form.NS_X_DATA, 'x').next() except StopIteration: log.info(_("No data form found")) raise NotImplementedError("Only search through data form is implemented so far") return form_elt def _searchErr(self, failure): """Errback to self.searchRequest. @param failure (defer.failure.Failure): twisted failure @raise: the unchanged defer.failure.Failure """ log.info(_("Search request failure: %s") % unicode(failure.getErrorMessage())) raise failure class XEP_0055_handler(XMPPHandler): implements(iwokkel.IDisco) 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 []