plugins XEP-0020, XEP-0065, XEP-0095, XEP-0096: fixed file copy with Stream Initiation:
/!\ range is not working yet
/!\ pipe plugin is broken for now
This commit is contained in:
Goffi
parent
9911d60449
commit
dc0dbb149c
4 changed files with 536 additions and 552 deletions
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@ -21,18 +21,17 @@ from sat.core.i18n import _
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from sat.core.constants import Const as C
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from sat.core.log import getLogger
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log = getLogger(__name__)
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from sat.core import exceptions
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from twisted.words.xish import domish
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from twisted.words.protocols.jabber import jid
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from twisted.words.protocols import jabber
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from twisted.words.protocols.jabber import error
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import os
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from twisted.internet import reactor
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from twisted.python import failure
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from wokkel import data_form
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NS_SI_FT = "http://jabber.org/protocol/si/profile/file-transfer"
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IQ_SET = '/iq[@type="set"]'
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PROFILE_NAME = "file-transfer"
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PROFILE = "http://jabber.org/protocol/si/profile/" + PROFILE_NAME
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SI_PROFILE_NAME = "file-transfer"
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SI_PROFILE = "http://jabber.org/protocol/si/profile/" + SI_PROFILE_NAME
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PLUGIN_INFO = {
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"name": "XEP-0096 Plugin",
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@ -53,84 +52,125 @@ class XEP_0096(object):
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self.host = host
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self.managed_stream_m = [self.host.plugins["XEP-0065"].NAMESPACE,
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self.host.plugins["XEP-0047"].NAMESPACE] # Stream methods managed
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self.host.plugins["XEP-0095"].registerSIProfile(PROFILE_NAME, self.transferRequest)
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host.bridge.addMethod("sendFile", ".plugin", in_sign='ssa{ss}s', out_sign='s', method=self.sendFile)
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self._f = self.host.plugins["FILE"]
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self._si = self.host.plugins["XEP-0095"]
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self._si.registerSIProfile(SI_PROFILE_NAME, self._transferRequest)
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host.bridge.addMethod("siSendFile", ".plugin", in_sign='sssss', out_sign='s', method=self._sendFile)
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def profileConnected(self, profile):
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client = self.host.getClient(profile)
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client._xep_0096_waiting_for_approval = {} # key = id, value = [transfer data, IdelayedCall Reactor timeout,
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# current stream method, [failed stream methods], profile]
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def unload(self):
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self._si.unregisterSIProfile(SI_PROFILE_NAME)
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def _kill_id(self, approval_id, profile):
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"""Delete a waiting_for_approval id, called after timeout
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@param approval_id: id of _xep_0096_waiting_for_approval"""
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log.info(_("SI File Transfer: TimeOut reached for id %s") % approval_id)
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def _badRequest(self, iq_elt, message=None, profile=C.PROF_KEY_NONE):
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"""Send a bad-request error
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@param iq_elt(domish.Element): initial <IQ> element of the SI request
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@param message(None, unicode): informational message to display in the logs
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@param profile: %(doc_profile)s
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"""
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if message is not None:
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log.warning(message)
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self._si.sendError(iq_elt, 'bad-request', profile)
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def _parseRange(self, parent_elt, file_size):
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"""find and parse <range/> element
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@param parent_elt(domish.Element): direct parent of the <range/> element
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@return (tuple[bool, int, int]): a tuple with
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- True if range is required
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- range_offset
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- range_length
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"""
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try:
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client = self.host.getClient(profile)
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del client._xep_0096_waiting_for_approval[approval_id]
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except KeyError:
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log.warning(_("kill id called on a non existant approval id"))
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def transferRequest(self, iq_id, from_jid, si_id, si_mime_type, si_el, profile):
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"""Called when a file transfer is requested
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@param iq_id: id of the iq request
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@param from_jid: jid of the sender
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@param si_id: Stream Initiation session id
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@param si_mime_type: Mime type of the file (or default "application/octet-stream" if unknown)
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@param si_el: domish.Element of the request
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@param profile: %(doc_profile)s"""
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log.info(_("XEP-0096 file transfer requested"))
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log.debug(si_el.toXml())
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client = self.host.getClient(profile)
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filename = ""
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file_size = ""
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file_date = None
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file_hash = None
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file_desc = ""
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can_range = False
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file_elts = filter(lambda elt: elt.name == 'file', si_el.elements())
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feature_elts = self.host.plugins["XEP-0020"].getFeatureElt(si_el)
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if file_elts:
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file_el = file_elts[0]
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filename = file_el["name"]
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file_size = file_el["size"]
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file_date = file_el.getAttribute("date", "")
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file_hash = file_el.getAttribute("hash", "")
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log.info(_(u"File proposed: name=[%(name)s] size=%(size)s") % {'name': filename, 'size': file_size})
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for file_child_el in file_el.elements():
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if file_child_el.name == "desc":
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file_desc = unicode(file_child_el)
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elif file_child_el.name == "range":
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can_range = True
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range_elt = parent_elt.elements(NS_SI_FT, 'range').next()
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except StopIteration:
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range_ = False
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range_offset = None
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range_length = None
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else:
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log.warning(_("No file element found"))
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self.host.plugins["XEP-0095"].sendBadRequestError(iq_id, from_jid, profile)
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return
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range_ = True
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if feature_elts:
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feature_el = feature_elts[0]
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data_form.Form.fromElement(feature_el.firstChildElement())
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try:
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stream_method = self.host.plugins["XEP-0020"].negociate(feature_el, 'stream-method', self.managed_stream_m)
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range_offset = int(range_elt['offset'])
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except KeyError:
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log.warning(_("No stream method found"))
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self.host.plugins["XEP-0095"].sendBadRequestError(iq_id, from_jid, profile)
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return
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if not stream_method:
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log.warning(_("Can't find a valid stream method"))
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self.host.plugins["XEP-0095"].sendFailedError(iq_id, from_jid, profile)
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return
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range_offset = 0
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try:
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range_length = int(range_elt['length'])
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except KeyError:
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range_length = file_size
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if range_offset != 0 or range_length != file_size:
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raise NotImplementedError # FIXME
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return range_, range_offset, range_length
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def _transferRequest(self, iq_elt, si_id, si_mime_type, si_elt, profile):
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"""Called when a file transfer is requested
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@param iq_elt(domish.Element): initial <IQ> element of the SI request
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@param si_id(unicode): Stream Initiation session id
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@param si_mime_type("unicode"): Mime type of the file (or default "application/octet-stream" if unknown)
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@param si_elt(domish.Element): request
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@param profile: %(doc_profile)s
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"""
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log.info(_("XEP-0096 file transfer requested"))
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peer_jid = jid.JID(iq_elt['from'])
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try:
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file_elt = si_elt.elements(NS_SI_FT, "file").next()
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except StopIteration:
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return self._badRequest(iq_elt, "No <file/> element found in SI File Transfer request", profile)
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try:
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feature_elt = self.host.plugins["XEP-0020"].getFeatureElt(si_elt)
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except exceptions.NotFound:
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return self._badRequest(iq_elt, "No <feature/> element found in SI File Transfer request", profile)
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try:
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filename = file_elt["name"]
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file_size = int(file_elt["size"])
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except (KeyError, ValueError):
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return self._badRequest(iq_elt, "Malformed SI File Transfer request", profile)
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file_date = file_elt.getAttribute("date")
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file_hash = file_elt.getAttribute("hash")
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log.info(u"File proposed: name=[{name}] size={size}".format(name=filename, size=file_size))
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try:
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file_desc = unicode(file_elt.elements(NS_SI_FT, 'desc').next())
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except StopIteration:
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file_desc = ''
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try:
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range_, range_offset, range_length = self._parseRange(file_elt, file_size)
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except ValueError:
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return self._badRequest(iq_elt, "Malformed SI File Transfer request", profile)
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try:
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stream_method = self.host.plugins["XEP-0020"].negotiate(feature_elt, 'stream-method', self.managed_stream_m, namespace=None)
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except KeyError:
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return self._badRequest(iq_elt, "No stream method found", profile)
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if stream_method:
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if stream_method == self.host.plugins["XEP-0065"].NAMESPACE:
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plugin = self.host.plugins["XEP-0065"]
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elif stream_method == self.host.plugins["XEP-0047"].NAMESPACE:
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plugin = self.host.plugins["XEP-0047"]
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else:
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log.error(_("Unknown stream method, this should not happen at this stage, cancelling transfer"))
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else:
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log.warning(_("No feature element found"))
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self.host.plugins["XEP-0095"].sendBadRequestError(iq_id, from_jid, profile)
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log.warning(_("Can't find a valid stream method"))
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self._si.sendError(iq_elt, 'not-acceptable', profile)
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return
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#if we are here, the transfer can start, we just need user's agreement
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data = {"filename": filename, "id": iq_id, "from": from_jid, "size": file_size, "date": file_date, "hash": file_hash, "desc": file_desc, "can_range": str(can_range)}
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client._xep_0096_waiting_for_approval[si_id] = [data, reactor.callLater(300, self._kill_id, si_id, profile), stream_method, []]
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data = {"name": filename, "peer_jid": peer_jid, "size": file_size, "date": file_date, "hash": file_hash, "desc": file_desc,
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"range": range_, "range_offset": range_offset, "range_length": range_length,
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"si_id": si_id, "stream_method": stream_method, "stream_plugin": plugin}
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self.host.askConfirmation(si_id, "FILE_TRANSFER", data, self.confirmationCB, profile)
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d = self._f.getDestDir(peer_jid, data, data, profile)
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d.addCallback(self.confirmationCb, iq_elt, data, profile)
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def _getFileObject(self, dest_path, can_range=False):
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"""Open file, put file pointer to the end if the file if needed
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@ -139,178 +179,176 @@ class XEP_0096(object):
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@return: File Object"""
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return open(dest_path, "ab" if can_range else "wb")
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def confirmationCB(self, sid, accepted, frontend_data, profile):
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def confirmationCb(self, accepted, iq_elt, data, profile):
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"""Called on confirmation answer
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@param sid: file transfer session id
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@param accepted: True if file transfer is accepted
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@param frontend_data: data sent by frontend"""
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client = self.host.getClient(profile)
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data, timeout, stream_method, failed_methods = client._xep_0096_waiting_for_approval[sid]
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can_range = data['can_range'] == "True"
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range_offset = 0
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if accepted:
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if timeout.active():
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timeout.cancel()
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try:
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dest_path = frontend_data['dest_path']
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except KeyError:
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log.error(_('dest path not found in frontend_data'))
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del client._xep_0096_waiting_for_approval[sid]
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return
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if stream_method == self.host.plugins["XEP-0065"].NAMESPACE:
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plugin = self.host.plugins["XEP-0065"]
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elif stream_method == self.host.plugins["XEP-0047"].NAMESPACE:
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plugin = self.host.plugins["XEP-0047"]
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else:
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log.error(_("Unknown stream method, this should not happen at this stage, cancelling transfer"))
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del client._xep_0096_waiting_for_approval[sid]
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return
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file_obj = self._getFileObject(dest_path, can_range)
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range_offset = file_obj.tell()
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d = plugin.createSession(file_obj, jid.JID(data['from']), sid, int(data["size"]), profile)
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d.addCallback(self._transferSucceeded, sid, file_obj, stream_method, profile)
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d.addErrback(self._transferFailed, sid, file_obj, stream_method, profile)
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@param accepted(bool): True if file transfer is accepted
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@param iq_elt(domish.Element): initial SI request
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@param data(dict): session data
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@param profile: %(doc_profile)s
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"""
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if not accepted:
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log.info(u"File transfer declined")
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self._si.sendError(iq_elt, 'forbidden', profile)
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return
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# data, timeout, stream_method, failed_methods = client._xep_0096_waiting_for_approval[sid]
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# can_range = data['can_range'] == "True"
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# range_offset = 0
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# if timeout.active():
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# timeout.cancel()
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# try:
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# dest_path = frontend_data['dest_path']
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# except KeyError:
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# log.error(_('dest path not found in frontend_data'))
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# del client._xep_0096_waiting_for_approval[sid]
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# return
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# if stream_method == self.host.plugins["XEP-0065"].NAMESPACE:
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# plugin = self.host.plugins["XEP-0065"]
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# elif stream_method == self.host.plugins["XEP-0047"].NAMESPACE:
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# plugin = self.host.plugins["XEP-0047"]
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# else:
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# log.error(_("Unknown stream method, this should not happen at this stage, cancelling transfer"))
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# del client._xep_0096_waiting_for_approval[sid]
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# return
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#we can send the iq result
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feature_elt = self.host.plugins["XEP-0020"].chooseOption({'stream-method': stream_method})
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misc_elts = []
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misc_elts.append(domish.Element((PROFILE, "file")))
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if can_range:
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range_elt = domish.Element((None, "range"))
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range_elt['offset'] = str(range_offset)
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#TODO: manage range length
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misc_elts.append(range_elt)
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self.host.plugins["XEP-0095"].acceptStream(data["id"], data['from'], feature_elt, misc_elts, profile)
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else:
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log.debug(_(u"Transfer [%s] refused") % sid)
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self.host.plugins["XEP-0095"].sendRejectedError(data["id"], data['from'], profile=profile)
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del(client._xep_0096_waiting_for_approval[sid])
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# file_obj = self._getFileObject(dest_path, can_range)
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# range_offset = file_obj.tell()
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d = data['stream_plugin'].createSession(data['file_obj'], data['peer_jid'], data['si_id'], profile=profile)
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d.addCallback(self._transferCb, data, profile)
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d.addErrback(self._transferEb, data, profile)
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def _transferSucceeded(self, dummy, sid, file_obj, stream_method, profile):
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self.transferSucceeded(sid, file_obj, stream_method, profile)
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#we can send the iq result
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feature_elt = self.host.plugins["XEP-0020"].chooseOption({'stream-method': data['stream_method']}, namespace=None)
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misc_elts = []
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misc_elts.append(domish.Element((SI_PROFILE, "file")))
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# if can_range:
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# range_elt = domish.Element((None, "range"))
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# range_elt['offset'] = str(range_offset)
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# #TODO: manage range length
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# misc_elts.append(range_elt)
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self._si.acceptStream(iq_elt, feature_elt, misc_elts, profile)
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def transferSucceeded(self, dummy, sid, file_obj, stream_method, profile):
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def _transferCb(self, dummy, data, profile):
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"""Called by the stream method when transfer successfuly finished
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@param id: stream id"""
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client = self.host.getClient(profile)
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file_obj.close()
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log.info(_('Transfer %s successfuly finished') % sid)
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del(client._xep_0096_waiting_for_approval[sid])
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def _transferFailed(self, sid, file_obj, stream_method, reason, profile):
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self.transferFailed(failure.Failure(Exception(reason)), sid, file_obj, stream_method, profile)
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@param data: session data
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@param profile: %(doc_profile)s
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"""
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#TODO: check hash
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data['file_obj'].close()
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log.info(u'Transfer {si_id} successfuly finished'.format(**data))
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def transferFailed(self, failure, sid, file_obj, stream_method, profile):
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def _transferEb(self, failure, data, profile):
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"""Called when something went wrong with the transfer
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@param id: stream id
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@param data: session data
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@param profile: %(doc_profile)s
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"""
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log.warning(u'Transfer {si_id} failed: {reason}'.format(reason=unicode(failure.condition), **data))
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data['file_obj'].close()
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def _sendFile(self, peer_jid_s, filepath, name, desc, profile=C.PROF_KEY_NONE):
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return self.sendFile(jid.JID(peer_jid_s), filepath, name or None, desc or None, profile)
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def sendFile(self, peer_jid, filepath, name=None, desc=None, profile=C.PROF_KEY_NONE):
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"""Send a file using XEP-0096
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@param peer_jid(jid.JID): recipient
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@param filepath(str): absolute path to the file to send
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@param name(unicode): name of the file to send
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name must not contain "/" characters
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@param desc: description of the file
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@param profile: %(doc_profile)s
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@return: an unique id to identify the transfer
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"""
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client = self.host.getClient(profile)
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data, timeout, stream_method, failed_methods = client._xep_0096_waiting_for_approval[sid]
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log.warning(_(u'Transfer %(id)s failed with stream method %(s_method)s: %(reason)s') % {
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'id': sid,
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's_method': stream_method,
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'reason': unicode(failure)})
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filepath = file_obj.name
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file_obj.close()
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os.remove(filepath)
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#TODO: session remenber (within a time limit) when a stream method fail, and avoid that stream method with full jid for the rest of the session
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log.warning(_("All stream methods failed, can't transfer the file"))
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del(client._xep_0096_waiting_for_approval[sid])
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feature_elt = self.host.plugins["XEP-0020"].proposeFeatures({'stream-method': self.managed_stream_m}, namespace=None)
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def fileCb(self, filepath, sid, size, profile, IQ):
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if IQ['type'] == "error":
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stanza_err = jabber.error.exceptionFromStanza(IQ)
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if stanza_err.code == '403' and stanza_err.condition == 'forbidden':
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log.debug(_(u"File transfer refused by %s") % IQ['from'])
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self.host.bridge.newAlert(_("The contact %s refused your file") % IQ['from'], _("File refused"), "INFO", profile)
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else:
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log.warning(_(u"Error during file transfer with %s") % IQ['from'])
|
||||
self.host.bridge.newAlert(_("Something went wrong during the file transfer session intialisation with %s") % IQ['from'], _("File transfer error"), "ERROR", profile)
|
||||
file_transfer_elts = []
|
||||
|
||||
statinfo = os.stat(filepath)
|
||||
file_elt = domish.Element((SI_PROFILE, 'file'))
|
||||
file_elt['name'] = name or os.path.basename(filepath)
|
||||
assert '/' not in file_elt['name']
|
||||
size = statinfo.st_size
|
||||
file_elt['size'] = str(size)
|
||||
if desc:
|
||||
file_elt.addElement('desc', content=desc)
|
||||
file_transfer_elts.append(file_elt)
|
||||
|
||||
file_transfer_elts.append(domish.Element((None, 'range')))
|
||||
|
||||
sid, offer_d = self._si.proposeStream(peer_jid, SI_PROFILE, feature_elt, file_transfer_elts, profile=client.profile)
|
||||
args = [filepath, sid, size, client]
|
||||
offer_d.addCallbacks(self._fileCb, self._fileEb, args, None, args)
|
||||
return sid
|
||||
|
||||
def _fileCb(self, result_tuple, filepath, sid, size, client):
|
||||
iq_elt, si_elt = result_tuple
|
||||
|
||||
try:
|
||||
feature_elt = self.host.plugins["XEP-0020"].getFeatureElt(si_elt)
|
||||
except exceptions.NotFound:
|
||||
log.warning(u"No <feature/> element found in result while expected")
|
||||
return
|
||||
|
||||
si_elt = IQ.firstChildElement()
|
||||
|
||||
if IQ['type'] != "result" or not si_elt or si_elt.name != "si":
|
||||
log.error(_("Protocol error during file transfer"))
|
||||
return
|
||||
|
||||
feature_elts = self.host.plugins["XEP-0020"].getFeatureElt(si_elt)
|
||||
if not feature_elts:
|
||||
log.warning(_("No feature element"))
|
||||
return
|
||||
|
||||
choosed_options = self.host.plugins["XEP-0020"].getChoosedOptions(feature_elts[0])
|
||||
choosed_options = self.host.plugins["XEP-0020"].getChoosedOptions(feature_elt, namespace=None)
|
||||
try:
|
||||
stream_method = choosed_options["stream-method"]
|
||||
except KeyError:
|
||||
log.warning(_("No stream method choosed"))
|
||||
log.warning(u"No stream method choosed")
|
||||
return
|
||||
|
||||
range_offset = 0
|
||||
# range_length = None
|
||||
range_elts = filter(lambda elt: elt.name == 'range', si_elt.elements())
|
||||
if range_elts:
|
||||
range_elt = range_elts[0]
|
||||
range_offset = range_elt.getAttribute("offset", 0)
|
||||
# range_length = range_elt.getAttribute("length")
|
||||
try:
|
||||
file_elt = si_elt.elements(NS_SI_FT, "file").next()
|
||||
except StopIteration:
|
||||
pass
|
||||
else:
|
||||
range_, range_offset, range_length = self._parseRange(file_elt, size)
|
||||
|
||||
if stream_method == self.host.plugins["XEP-0065"].NAMESPACE:
|
||||
plugin = self.host.plugins["XEP-0065"]
|
||||
elif stream_method == self.host.plugins["XEP-0047"].NAMESPACE:
|
||||
plugin = self.host.plugins["XEP-0047"]
|
||||
else:
|
||||
log.error(u"Invalid stream method received")
|
||||
log.warning(u"Invalid stream method received")
|
||||
return
|
||||
|
||||
file_obj = open(filepath, 'r')
|
||||
if range_offset:
|
||||
file_obj.seek(range_offset)
|
||||
d = plugin.startStream(file_obj, jid.JID(IQ['from']), sid, profile=profile)
|
||||
d.addCallback(self.sendSuccessCb, sid, file_obj, stream_method, profile)
|
||||
d.addErrback(self.sendFailureCb, sid, file_obj, stream_method, profile)
|
||||
file_obj = self._f.File(self.host,
|
||||
filepath,
|
||||
size=size,
|
||||
profile=client.profile
|
||||
)
|
||||
d = plugin.startStream(file_obj, jid.JID(iq_elt['from']), sid, profile=client.profile)
|
||||
d.addCallback(self._sendCb, sid, file_obj, client.profile)
|
||||
d.addErrback(self._sendEb, sid, file_obj, client.profile)
|
||||
|
||||
def sendFile(self, to_jid, filepath, data={}, profile_key=C.PROF_KEY_NONE):
|
||||
"""send a file using XEP-0096
|
||||
@to_jid: recipient
|
||||
@filepath: absolute path to the file to send
|
||||
@data: dictionnary with the optional following keys:
|
||||
- "description": description of the file
|
||||
@param profile_key: %(doc_profile_key)s
|
||||
@return: an unique id to identify the transfer
|
||||
"""
|
||||
profile = self.host.memory.getProfileName(profile_key)
|
||||
if not profile:
|
||||
log.warning(_("Trying to send a file from an unknown profile"))
|
||||
return ""
|
||||
feature_elt = self.host.plugins["XEP-0020"].proposeFeatures({'stream-method': self.managed_stream_m})
|
||||
def _fileEb(self, failure, filepath, sid, size, client):
|
||||
if failure.check(error.StanzaError):
|
||||
stanza_err = failure.value
|
||||
if stanza_err.code == '403' and stanza_err.condition == 'forbidden':
|
||||
from_s = stanza_err.stanza['from']
|
||||
log.info(u"File transfer refused by {}".format(from_s))
|
||||
self.host.bridge.newAlert(_("The contact {} has refused your file").format(from_s), _("File refused"), "INFO", client.profile)
|
||||
else:
|
||||
log.warning(_(u"Error during file transfer"))
|
||||
self.host.bridge.newAlert(_(u"Something went wrong during the file transfer session intialisation: {reason}").format(reason=unicode(stanza_err.condition)), _("File transfer error"), "ERROR", client.profile)
|
||||
elif failure.check(exceptions.DataError):
|
||||
log.warning(u'Invalid stanza received')
|
||||
else:
|
||||
log.error(u'Error while proposing stream: {}'.format(failure))
|
||||
|
||||
file_transfer_elts = []
|
||||
|
||||
statinfo = os.stat(filepath)
|
||||
file_elt = domish.Element((PROFILE, 'file'))
|
||||
file_elt['name'] = os.path.basename(filepath)
|
||||
size = file_elt['size'] = str(statinfo.st_size)
|
||||
file_transfer_elts.append(file_elt)
|
||||
|
||||
file_transfer_elts.append(domish.Element((None, 'range')))
|
||||
|
||||
sid, offer = self.host.plugins["XEP-0095"].proposeStream(jid.JID(to_jid), PROFILE, feature_elt, file_transfer_elts, profile_key=profile)
|
||||
offer.addCallback(self.fileCb, filepath, sid, size, profile)
|
||||
return sid
|
||||
|
||||
def _sendSuccessCb(self, sid, file_obj, stream_method, profile):
|
||||
self.sendSuccessCb(sid, file_obj, stream_method, profile)
|
||||
|
||||
def sendSuccessCb(self, dummy, sid, file_obj, stream_method, profile):
|
||||
log.info(_(u'Transfer %(sid)s successfuly finished [%(profile)s]')
|
||||
% {"sid": sid, "profile": profile})
|
||||
def _sendCb(self, dummy, sid, file_obj, profile):
|
||||
log.info(_(u'transfer {sid} successfuly finished [{profile}]').format(
|
||||
sid=sid,
|
||||
profile=profile))
|
||||
file_obj.close()
|
||||
|
||||
def _sendFailureCb(self, sid, file_obj, stream_method, reason, profile):
|
||||
self.sendFailureCb(failure.Failure(Exception(reason)), sid, file_obj, stream_method, profile)
|
||||
|
||||
def sendFailureCb(self, failure, sid, file_obj, stream_method, profile):
|
||||
def _sendEb(self, failure, sid, file_obj, profile):
|
||||
log.warning(_(u'transfer {sid} failed [{profile}]: {reason}').format(
|
||||
sid=sid,
|
||||
profile=profile,
|
||||
reason=unicode(failure.condition),
|
||||
))
|
||||
file_obj.close()
|
||||
log.warning(_(u'Transfer %(id)s failed with stream method %(s_method)s: %(reason)s [%(profile)s]') % {'id': sid, "s_method": stream_method, 'reason': unicode(failure), 'profile': profile})
|
||||
|
|
|
|||
Loading…
Reference in a new issue