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plugin XEP-0313: implementation of MAM for messages:

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- (core/xmpp): new messageGetBridgeArgs to easily retrieve arguments used in bridge from message data
-            : parseMessage is not static anymore
-            : new "message_parse" trigger point
- (xep-0313) : new "MAMGet" bridge method to retrieve history from MAM instead of local one
-            : on profileConnected, if previous MAM message is found (i.e. message with a stanza_id), message received while offline are retrieved and injected in message workflow.
               In other words, one2one history is synchronised on connection.
-            : new "parseExtra" method which parse MAM (and optionally RSM) option from extra dictionary used in bridge.
This commit is contained in:
Goffi 2018-12-01 10:33:43 +01:00
commit 39d2409273
1 changed files with 224 additions and 55 deletions
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209
sat/plugins/plugin_xep_0313.py
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@ -21,15 +21,15 @@
from sat.core.constants import Const as C
from sat.core.i18n import _
from sat.core.log import getLogger
log = getLogger(__name__)
from sat.core import exceptions
from sat.tools.common import data_format
from twisted.words.protocols.jabber import jid
from twisted.internet import defer
from zope.interface import implements
from datetime import datetime
from dateutil import tz
from wokkel import disco
from wokkel import data_form
import uuid
# XXX: mam and rsm come from sat_tmp.wokkel
@ -37,28 +37,178 @@ from wokkel import rsm
from wokkel import mam
log = getLogger(__name__)
MESSAGE_RESULT = "/message/result[@xmlns='{mam_ns}' and @queryid='{query_id}']"
PLUGIN_INFO = {
C.PI_NAME: "Message Archive Management",
C.PI_IMPORT_NAME: "XEP-0313",
C.PI_TYPE: "XEP",
C.PI_PROTOCOLS: ["XEP-0313"],
C.PI_MAIN: "XEP_0313",
C.PI_HANDLER: "yes",
C.PI_DESCRIPTION: _("""Implementation of Message Archive Management"""),
C.PI_NAME: u"Message Archive Management",
C.PI_IMPORT_NAME: u"XEP-0313",
C.PI_TYPE: u"XEP",
C.PI_PROTOCOLS: [u"XEP-0313"],
C.PI_DEPENDENCIES: [u"XEP-0059", u"XEP-0359"],
C.PI_MAIN: u"XEP_0313",
C.PI_HANDLER: u"yes",
C.PI_DESCRIPTION: _(u"""Implementation of Message Archive Management"""),
}
MAM_PREFIX = u"mam_"
FILTER_PREFIX = MAM_PREFIX + "filter_"
class XEP_0313(object):
def __init__(self, host):
log.info(_("Message Archive Management plugin initialization"))
self.host = host
self.host.registerNamespace(u"mam", mam.NS_MAM)
self._rsm = host.plugins[u"XEP-0059"]
self._sid = host.plugins[u"XEP-0359"]
host.bridge.addMethod(
"MAMGet", ".plugin", in_sign='sss', out_sign='(a(sdssa{ss}a{ss}sa{ss})s)', method=self._getArchives,
async=True)
@defer.inlineCallbacks
def profileConnected(self, client):
last_mess = yield self.host.memory.historyGet(
None, None, limit=1, filters={u'last_stanza_id': True},
profile=client.profile)
if not last_mess:
log.info(_(u"It seems that we have no MAM history yet"))
return
stanza_id = last_mess[0][-1][u'stanza_id']
# XXX: test
# stanza_id = "IIheJOfiIhkPYkw6"
rsm_req = rsm.RSMRequest(after=stanza_id)
mam_req = mam.MAMRequest(rsm_=rsm_req)
mam_data = yield self.getArchives(client, mam_req,
service=client.jid.userhostJID())
elt_list, rsm_response = mam_data
if not elt_list:
log.info(_(u"We have received no message while offline"))
return
else:
log.info(_(u"We have received {num_mess} message(s) while offline.").format(
num_mess=len(elt_list)))
for mess_elt in elt_list:
try:
fwd_message_elt = self.getMessageFromResult(client, mess_elt, mam_req)
except exceptions.DataError:
continue
client.messageProt.onMessage(fwd_message_elt)
def getHandler(self, client):
mam_client = client._mam = SatMAMClient()
return mam_client
def parseExtra(self, extra, with_rsm=True):
"""Parse extra dictionnary to retrieve MAM arguments
@param extra(dict): data for parse
@param with_rsm(bool): if True, RSM data will be parsed too
@return (data_form, None): request with parsed arguments
or None if no MAM arguments have been found
"""
mam_args = {}
form_args = {}
for arg in (u"start", u"end"):
try:
value = extra.pop(MAM_PREFIX + arg)
form_args[arg] = datetime.fromtimestamp(float(value), tz.tzutc())
except (TypeError, ValueError):
log.warning(u"Bad value for {arg} filter ({value}), ignoring".format(
arg=arg, value=value))
except KeyError:
continue
try:
form_args[u"with_jid"] = jid.JID(extra.pop(
MAM_PREFIX + u"with"))
except (jid.InvalidFormat):
log.warning(u"Bad value for jid filter")
except KeyError:
pass
for name, value in extra.iteritems():
if name.startswith(FILTER_PREFIX):
var = name[len(FILTER_PREFIX) :]
extra_fields = form_args.setdefault(u"extra_fields", [])
extra_fields.append(data_form.Field(var=var, value=value))
for arg in (u"node", u"query_id"):
try:
value = extra.pop(MAM_PREFIX + arg)
mam_args[arg] = value
except KeyError:
continue
if with_rsm:
rsm_request = self._rsm.parseExtra(extra)
if rsm_request is not None:
mam_args["rsm_"] = rsm_request
if form_args:
mam_args["form"] = mam.buildForm(**form_args)
return mam.MAMRequest(**mam_args) if mam_args else None
def getMessageFromResult(self, client, mess_elt, mam_req):
"""Extract usable <message/> from MAM query result
The message will be validated, and stanza-id/delay will be added if necessary.
@param mess_elt(domish.Element): result <message/> element wrapping the message
to retrieve
@param mam_req(mam.MAMRequest): request used
@return (domish.Element): <message/> that can be used directly with onMessage
"""
if mess_elt.name != u"message":
log.warning(u"unexpected stanza in archive: {xml}".format(
xml=mess_elt.toXml()))
raise exceptions.DataError(u"Invalid element")
mess_from = mess_elt[u"from"]
if mess_from != client.jid.host and mess_from != client.jid.userhost():
log.error(u"Message is not from our server, something went wrong: "
u"{xml}".format(xml=mess_elt.toXml()))
raise exceptions.DataError(u"Invalid element")
try:
result_elt = next(mess_elt.elements(mam.NS_MAM, u"result"))
forwarded_elt = next(result_elt.elements(C.NS_FORWARD, u"forwarded"))
try:
delay_elt = next(forwarded_elt.elements(C.NS_DELAY, u"delay"))
except StopIteration:
# delay_elt is not mandatory
delay_elt = None
fwd_message_elt = next(forwarded_elt.elements(C.NS_CLIENT, u"message"))
except StopIteration:
log.warning(u"Invalid message received from MAM: {xml}".format(
xml=mess_elt.toXml()))
raise exceptions.DataError(u"Invalid element")
else:
if not result_elt[u"queryid"] == mam_req.query_id:
log.error(u"Unexpected query id (was expecting {query_id}): {xml}"
.format(query_id=mam.query_id, xml=mess_elt.toXml()))
raise exceptions.DataError(u"Invalid element")
stanza_id = self._sid.getStanzaId(fwd_message_elt,
client.jid.userhostJID())
if stanza_id is None:
# not stanza-id element is present, we add one so message
# will be archived with it, and we won't request several times
# the same MAM achive
try:
stanza_id = result_elt[u"id"]
except AttributeError:
log.warning(u'Invalid MAM result: missing "id" attribute: {xml}'
.format(xml=result_elt.toXml()))
raise exceptions.DataError(u"Invalid element")
self._sid.addStanzaId(client, fwd_message_elt, stanza_id)
if delay_elt is not None:
fwd_message_elt.addChild(delay_elt)
return fwd_message_elt
def queryFields(self, client, service=None):
"""Ask the server about supported fields.
@ -67,15 +217,15 @@ class XEP_0313(object):
"""
return client._mam.queryFields(service)
def queryArchive(self, client, mam_query, service=None):
def queryArchive(self, client, mam_req, service=None):
"""Query a user, MUC or pubsub archive.
@param mam_query(mam.MAMRequest): MAM query instance
@param mam_req(mam.MAMRequest): MAM query instance
@param service(jid.JID, None): entity offering the MAM service
None for user server
@return (D(domish.Element)): <IQ/> result
"""
return client._mam.queryArchive(mam_query, service)
return client._mam.queryArchive(mam_req, service)
def _appendMessage(self, elt_list, message_cb, message_elt):
if message_cb is not None:
@ -97,6 +247,25 @@ class XEP_0313(object):
return (elt_list, rsm_response)
def serializeArchiveResult(self, data, client, mam_req):
elt_list, rsm_response = data
mess_list = []
for elt in elt_list:
fwd_message_elt = self.getMessageFromResult(client, elt, mam_req)
mess_data = client.messageProt.parseMessage(fwd_message_elt)
mess_list.append(client.messageGetBridgeArgs(mess_data))
return mess_list, client.profile
def _getArchives(self, service, extra_ser, profile_key):
client = self.host.getClient(profile_key)
service = jid.JID(service) if service else None
extra = data_format.deserialise(extra_ser, {})
mam_req = self.parseExtra(extra)
d = self.getArchives(client, mam_req, service=service)
d.addCallback(self.serializeArchiveResult, client, mam_req)
return d
def getArchives(self, client, query, service=None, message_cb=None):
"""Query archive then grab and return them all in the result
@ -119,14 +288,8 @@ class XEP_0313(object):
# http://xmpp.org/extensions/xep-0313.html#prefs
return client._mam.queryPrefs(service)
def _setPrefs(
self,
service_s=None,
default="roster",
always=None,
never=None,
profile_key=C.PROF_KEY_NONE,
):
def _setPrefs(self, service_s=None, default="roster", always=None, never=None,
profile_key=C.PROF_KEY_NONE):
service = jid.JID(service_s) if service_s else None
always_jid = [jid.JID(entity) for entity in always]
never_jid = [jid.JID(entity) for entity in never]