1275 lines
48 KiB
Python
1275 lines
48 KiB
Python
#!/usr/bin/env python3
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# SAT plugin for File Information Sharing (XEP-0329)
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# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import mimetypes
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import json
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import os
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import traceback
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from pathlib import Path
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from typing import Optional, Dict
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from zope.interface import implementer
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from twisted.words.protocols.jabber import xmlstream
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from twisted.words.protocols.jabber import jid
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from twisted.words.protocols.jabber import error as jabber_error
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from twisted.internet import defer
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from wokkel import disco, iwokkel, data_form
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from libervia.backend.core.i18n import _
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from libervia.backend.core.xmpp import SatXMPPEntity
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from libervia.backend.core import exceptions
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from libervia.backend.core.constants import Const as C
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from libervia.backend.core.log import getLogger
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from libervia.backend.tools import stream
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from libervia.backend.tools import utils
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from libervia.backend.tools.common import regex
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log = getLogger(__name__)
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PLUGIN_INFO = {
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C.PI_NAME: "File Information Sharing",
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C.PI_IMPORT_NAME: "XEP-0329",
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C.PI_TYPE: "XEP",
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C.PI_MODES: C.PLUG_MODE_BOTH,
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C.PI_PROTOCOLS: ["XEP-0329"],
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C.PI_DEPENDENCIES: ["XEP-0231", "XEP-0234", "XEP-0300", "XEP-0106"],
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C.PI_MAIN: "XEP_0329",
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C.PI_HANDLER: "yes",
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C.PI_DESCRIPTION: _("""Implementation of File Information Sharing"""),
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}
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NS_FIS = "urn:xmpp:fis:0"
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NS_FIS_AFFILIATION = "org.salut-a-toi.fis-affiliation"
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NS_FIS_CONFIGURATION = "org.salut-a-toi.fis-configuration"
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NS_FIS_CREATE = "org.salut-a-toi.fis-create"
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IQ_FIS_REQUEST = f'{C.IQ_GET}/query[@xmlns="{NS_FIS}"]'
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# not in the standard, but needed, and it's handy to keep it here
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IQ_FIS_AFFILIATION_GET = f'{C.IQ_GET}/affiliations[@xmlns="{NS_FIS_AFFILIATION}"]'
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IQ_FIS_AFFILIATION_SET = f'{C.IQ_SET}/affiliations[@xmlns="{NS_FIS_AFFILIATION}"]'
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IQ_FIS_CONFIGURATION_GET = f'{C.IQ_GET}/configuration[@xmlns="{NS_FIS_CONFIGURATION}"]'
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IQ_FIS_CONFIGURATION_SET = f'{C.IQ_SET}/configuration[@xmlns="{NS_FIS_CONFIGURATION}"]'
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IQ_FIS_CREATE_DIR = f'{C.IQ_SET}/dir[@xmlns="{NS_FIS_CREATE}"]'
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SINGLE_FILES_DIR = "files"
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TYPE_VIRTUAL = "virtual"
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TYPE_PATH = "path"
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SHARE_TYPES = (TYPE_PATH, TYPE_VIRTUAL)
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KEY_TYPE = "type"
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class RootPathException(Exception):
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"""Root path is requested"""
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class ShareNode(object):
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"""Node containing directory or files to share, virtual or real"""
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host = None
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def __init__(self, name, parent, type_, access, path=None):
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assert type_ in SHARE_TYPES
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if name is not None:
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if name == ".." or "/" in name or "\\" in name:
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log.warning(
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_("path change chars found in name [{name}], hack attempt?").format(
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name=name
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)
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)
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if name == "..":
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name = "--"
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else:
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name = regex.path_escape(name)
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self.name = name
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self.children = {}
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self.type = type_
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self.access = {} if access is None else access
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assert isinstance(self.access, dict)
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self.parent = None
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if parent is not None:
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assert name
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parent.addChild(self)
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else:
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assert name is None
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if path is not None:
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if type_ != TYPE_PATH:
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raise exceptions.InternalError(_("path can only be set on path nodes"))
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self._path = path
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@property
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def path(self):
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return self._path
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def __getitem__(self, key):
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return self.children[key]
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def __contains__(self, item):
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return self.children.__contains__(item)
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def __iter__(self):
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return self.children.__iter__()
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def items(self):
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return self.children.items()
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def values(self):
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return self.children.values()
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def get_or_create(self, name, type_=TYPE_VIRTUAL, access=None):
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"""Get a node or create a virtual node and return it"""
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if access is None:
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access = {C.ACCESS_PERM_READ: {KEY_TYPE: C.ACCESS_TYPE_PUBLIC}}
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try:
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return self.children[name]
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except KeyError:
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node = ShareNode(name, self, type_=type_, access=access)
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return node
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def addChild(self, node):
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if node.parent is not None:
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raise exceptions.ConflictError(_("a node can't have several parents"))
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node.parent = self
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self.children[node.name] = node
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def remove_from_parent(self):
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try:
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del self.parent.children[self.name]
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except TypeError:
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raise exceptions.InternalError(
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"trying to remove a node from inexisting parent"
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)
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except KeyError:
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raise exceptions.InternalError("node not found in parent's children")
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self.parent = None
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def _check_node_permission(self, client, node, perms, peer_jid):
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"""Check access to this node for peer_jid
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@param node(SharedNode): node to check access
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@param perms(unicode): permissions to check, iterable of C.ACCESS_PERM_*
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@param peer_jid(jid.JID): entity which try to access the node
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@return (bool): True if entity can access
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"""
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file_data = {"access": self.access, "owner": client.jid.userhostJID()}
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try:
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self.host.memory.check_file_permission(file_data, peer_jid, perms)
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except exceptions.PermissionError:
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return False
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else:
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return True
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def check_permissions(
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self, client, peer_jid, perms=(C.ACCESS_PERM_READ,), check_parents=True
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):
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"""Check that peer_jid can access this node and all its parents
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@param peer_jid(jid.JID): entrity trying to access the node
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@param perms(unicode): permissions to check, iterable of C.ACCESS_PERM_*
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@param check_parents(bool): if True, access of all parents of this node will be
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checked too
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@return (bool): True if entity can access this node
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"""
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peer_jid = peer_jid.userhostJID()
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if peer_jid == client.jid.userhostJID():
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return True
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parent = self
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while parent != None:
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if not self._check_node_permission(client, parent, perms, peer_jid):
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return False
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parent = parent.parent
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return True
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@staticmethod
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def find(client, path, peer_jid, perms=(C.ACCESS_PERM_READ,)):
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"""find node corresponding to a path
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@param path(unicode): path to the requested file or directory
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@param peer_jid(jid.JID): entity trying to find the node
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used to check permission
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@return (dict, unicode): shared data, remaining path
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@raise exceptions.PermissionError: user can't access this file
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@raise exceptions.DataError: path is invalid
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@raise NotFound: path lead to a non existing file/directory
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"""
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path_elts = [_f for _f in path.split("/") if _f]
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if ".." in path_elts:
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log.warning(_(
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'parent dir ("..") found in path, hack attempt? path is {path} '
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'[{profile}]').format(path=path, profile=client.profile))
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raise exceptions.PermissionError("illegal path elements")
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node = client._XEP_0329_root_node
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while path_elts:
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if node.type == TYPE_VIRTUAL:
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try:
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node = node[path_elts.pop(0)]
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except KeyError:
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raise exceptions.NotFound
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elif node.type == TYPE_PATH:
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break
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if not node.check_permissions(client, peer_jid, perms=perms):
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raise exceptions.PermissionError("permission denied")
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return node, "/".join(path_elts)
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def find_by_local_path(self, path):
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"""retrieve nodes linking to local path
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@return (list[ShareNode]): found nodes associated to path
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@raise exceptions.NotFound: no node has been found with this path
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"""
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shared_paths = self.get_shared_paths()
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try:
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return shared_paths[path]
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except KeyError:
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raise exceptions.NotFound
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def _get_shared_paths(self, node, paths):
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if node.type == TYPE_VIRTUAL:
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for node in node.values():
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self._get_shared_paths(node, paths)
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elif node.type == TYPE_PATH:
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paths.setdefault(node.path, []).append(node)
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else:
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raise exceptions.InternalError(
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"unknown node type: {type}".format(type=node.type)
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)
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def get_shared_paths(self):
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"""retrieve nodes by shared path
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this method will retrieve recursively shared path in children of this node
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@return (dict): map from shared path to list of nodes
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"""
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if self.type == TYPE_PATH:
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raise exceptions.InternalError(
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"get_shared_paths must be used on a virtual node"
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)
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paths = {}
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self._get_shared_paths(self, paths)
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return paths
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class XEP_0329(object):
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def __init__(self, host):
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log.info(_("File Information Sharing initialization"))
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self.host = host
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ShareNode.host = host
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self._b = host.plugins["XEP-0231"]
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self._h = host.plugins["XEP-0300"]
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self._jf = host.plugins["XEP-0234"]
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host.bridge.add_method(
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"fis_list",
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".plugin",
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in_sign="ssa{ss}s",
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out_sign="aa{ss}",
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method=self._list_files,
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async_=True,
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)
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host.bridge.add_method(
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"fis_local_shares_get",
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".plugin",
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in_sign="s",
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out_sign="as",
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method=self._local_shares_get,
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)
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host.bridge.add_method(
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"fis_share_path",
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".plugin",
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in_sign="ssss",
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out_sign="s",
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method=self._share_path,
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)
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host.bridge.add_method(
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"fis_unshare_path",
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".plugin",
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in_sign="ss",
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out_sign="",
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method=self._unshare_path,
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)
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host.bridge.add_method(
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"fis_affiliations_get",
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".plugin",
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in_sign="ssss",
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out_sign="a{ss}",
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method=self._affiliations_get,
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async_=True,
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)
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host.bridge.add_method(
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"fis_affiliations_set",
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".plugin",
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in_sign="sssa{ss}s",
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out_sign="",
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method=self._affiliations_set,
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async_=True,
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)
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host.bridge.add_method(
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"fis_configuration_get",
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".plugin",
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in_sign="ssss",
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out_sign="a{ss}",
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method=self._configuration_get,
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async_=True,
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)
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host.bridge.add_method(
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"fis_configuration_set",
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".plugin",
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in_sign="sssa{ss}s",
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out_sign="",
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method=self._configuration_set,
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async_=True,
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)
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host.bridge.add_method(
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"fis_create_dir",
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".plugin",
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in_sign="sssa{ss}s",
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out_sign="",
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method=self._create_dir,
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async_=True,
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)
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host.bridge.add_signal("fis_shared_path_new", ".plugin", signature="sss")
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host.bridge.add_signal("fis_shared_path_removed", ".plugin", signature="ss")
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host.trigger.add("XEP-0234_fileSendingRequest", self._file_sending_request_trigger)
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host.register_namespace("fis", NS_FIS)
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def get_handler(self, client):
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return XEP_0329_handler(self)
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def profile_connected(self, client):
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if client.is_component:
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client._file_sharing_allowed_hosts = self.host.memory.config_get(
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'component file_sharing',
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'http_upload_allowed_hosts_list') or [client.host]
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else:
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client._XEP_0329_root_node = ShareNode(
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None,
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None,
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TYPE_VIRTUAL,
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{C.ACCESS_PERM_READ: {KEY_TYPE: C.ACCESS_TYPE_PUBLIC}},
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)
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client._XEP_0329_names_data = {} # name to share map
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def _file_sending_request_trigger(
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self, client, session, content_data, content_name, file_data, file_elt
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):
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"""This trigger check that a requested file is available, and fill suitable data
|
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Path and name are used to retrieve the file. If path is missing, we try our luck
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with known names
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"""
|
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if client.is_component:
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return True, None
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try:
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name = file_data["name"]
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except KeyError:
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return True, None
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assert "/" not in name
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path = file_data.get("path")
|
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if path is not None:
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# we have a path, we can follow it to find node
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try:
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node, rem_path = ShareNode.find(client, path, session["peer_jid"])
|
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except (exceptions.PermissionError, exceptions.NotFound):
|
||
# no file, or file not allowed, we continue normal workflow
|
||
return True, None
|
||
except exceptions.DataError:
|
||
log.warning(_("invalid path: {path}").format(path=path))
|
||
return True, None
|
||
|
||
if node.type == TYPE_VIRTUAL:
|
||
# we have a virtual node, so name must link to a path node
|
||
try:
|
||
path = node[name].path
|
||
except KeyError:
|
||
return True, None
|
||
elif node.type == TYPE_PATH:
|
||
# we have a path node, so we can retrieve the full path now
|
||
path = os.path.join(node.path, rem_path, name)
|
||
else:
|
||
raise exceptions.InternalError(
|
||
"unknown type: {type}".format(type=node.type)
|
||
)
|
||
if not os.path.exists(path):
|
||
return True, None
|
||
size = os.path.getsize(path)
|
||
else:
|
||
# we don't have the path, we try to find the file by its name
|
||
try:
|
||
name_data = client._XEP_0329_names_data[name]
|
||
except KeyError:
|
||
return True, None
|
||
|
||
for path, shared_file in name_data.items():
|
||
if True: # FIXME: filters are here
|
||
break
|
||
else:
|
||
return True, None
|
||
parent_node = shared_file["parent"]
|
||
if not parent_node.check_permissions(client, session["peer_jid"]):
|
||
log.warning(
|
||
_(
|
||
"{peer_jid} requested a file (s)he can't access [{profile}]"
|
||
).format(peer_jid=session["peer_jid"], profile=client.profile)
|
||
)
|
||
return True, None
|
||
size = shared_file["size"]
|
||
|
||
file_data["size"] = size
|
||
file_elt.addElement("size", content=str(size))
|
||
hash_algo = file_data["hash_algo"] = self._h.get_default_algo()
|
||
hasher = file_data["hash_hasher"] = self._h.get_hasher(hash_algo)
|
||
file_elt.addChild(self._h.build_hash_used_elt(hash_algo))
|
||
content_data["stream_object"] = stream.FileStreamObject(
|
||
self.host,
|
||
client,
|
||
path,
|
||
uid=self._jf.get_progress_id(session, content_name),
|
||
size=size,
|
||
data_cb=lambda data: hasher.update(data),
|
||
)
|
||
return False, defer.succeed(True)
|
||
|
||
# common methods
|
||
|
||
def _request_handler(self, client, iq_elt, root_nodes_cb, files_from_node_cb):
|
||
iq_elt.handled = True
|
||
node = iq_elt.query.getAttribute("node")
|
||
if not node:
|
||
d = utils.as_deferred(root_nodes_cb, client, iq_elt)
|
||
else:
|
||
d = utils.as_deferred(files_from_node_cb, client, iq_elt, node)
|
||
d.addErrback(
|
||
lambda failure_: log.error(
|
||
_("error while retrieving files: {msg}").format(msg=failure_)
|
||
)
|
||
)
|
||
|
||
def _iq_error(self, client, iq_elt, condition="item-not-found"):
|
||
error_elt = jabber_error.StanzaError(condition).toResponse(iq_elt)
|
||
client.send(error_elt)
|
||
|
||
# client
|
||
|
||
def _add_path_data(self, client, query_elt, path, parent_node):
|
||
"""Fill query_elt with files/directories found in path"""
|
||
name = os.path.basename(path)
|
||
if os.path.isfile(path):
|
||
size = os.path.getsize(path)
|
||
mime_type = mimetypes.guess_type(path, strict=False)[0]
|
||
file_elt = self._jf.build_file_element(
|
||
client=client, name=name, size=size, mime_type=mime_type,
|
||
modified=os.path.getmtime(path)
|
||
)
|
||
|
||
query_elt.addChild(file_elt)
|
||
# we don't specify hash as it would be too resource intensive to calculate
|
||
# it for all files.
|
||
# we add file to name_data, so users can request it later
|
||
name_data = client._XEP_0329_names_data.setdefault(name, {})
|
||
if path not in name_data:
|
||
name_data[path] = {
|
||
"size": size,
|
||
"mime_type": mime_type,
|
||
"parent": parent_node,
|
||
}
|
||
else:
|
||
# we have a directory
|
||
directory_elt = query_elt.addElement("directory")
|
||
directory_elt["name"] = name
|
||
|
||
def _path_node_handler(self, client, iq_elt, query_elt, node, path):
|
||
"""Fill query_elt for path nodes, i.e. physical directories"""
|
||
path = os.path.join(node.path, path)
|
||
|
||
if not os.path.exists(path):
|
||
# path may have been moved since it has been shared
|
||
return self._iq_error(client, iq_elt)
|
||
elif os.path.isfile(path):
|
||
self._add_path_data(client, query_elt, path, node)
|
||
else:
|
||
for name in sorted(os.listdir(path.encode("utf-8")), key=lambda n: n.lower()):
|
||
try:
|
||
name = name.decode("utf-8", "strict")
|
||
except UnicodeDecodeError as e:
|
||
log.warning(
|
||
_("ignoring invalid unicode name ({name}): {msg}").format(
|
||
name=name.decode("utf-8", "replace"), msg=e
|
||
)
|
||
)
|
||
continue
|
||
full_path = os.path.join(path, name)
|
||
self._add_path_data(client, query_elt, full_path, node)
|
||
|
||
def _virtual_node_handler(self, client, peer_jid, iq_elt, query_elt, node):
|
||
"""Fill query_elt for virtual nodes"""
|
||
for name, child_node in node.items():
|
||
if not child_node.check_permissions(client, peer_jid, check_parents=False):
|
||
continue
|
||
node_type = child_node.type
|
||
if node_type == TYPE_VIRTUAL:
|
||
directory_elt = query_elt.addElement("directory")
|
||
directory_elt["name"] = name
|
||
elif node_type == TYPE_PATH:
|
||
self._add_path_data(client, query_elt, child_node.path, child_node)
|
||
else:
|
||
raise exceptions.InternalError(
|
||
_("unexpected type: {type}").format(type=node_type)
|
||
)
|
||
|
||
def _get_root_nodes_cb(self, client, iq_elt):
|
||
peer_jid = jid.JID(iq_elt["from"])
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
query_elt = iq_result_elt.addElement((NS_FIS, "query"))
|
||
for name, node in client._XEP_0329_root_node.items():
|
||
if not node.check_permissions(client, peer_jid, check_parents=False):
|
||
continue
|
||
directory_elt = query_elt.addElement("directory")
|
||
directory_elt["name"] = name
|
||
client.send(iq_result_elt)
|
||
|
||
def _get_files_from_node_cb(self, client, iq_elt, node_path):
|
||
"""Main method to retrieve files/directories from a node_path"""
|
||
peer_jid = jid.JID(iq_elt["from"])
|
||
try:
|
||
node, path = ShareNode.find(client, node_path, peer_jid)
|
||
except (exceptions.PermissionError, exceptions.NotFound):
|
||
return self._iq_error(client, iq_elt)
|
||
except exceptions.DataError:
|
||
return self._iq_error(client, iq_elt, condition="not-acceptable")
|
||
|
||
node_type = node.type
|
||
peer_jid = jid.JID(iq_elt["from"])
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
query_elt = iq_result_elt.addElement((NS_FIS, "query"))
|
||
query_elt["node"] = node_path
|
||
|
||
# we now fill query_elt according to node_type
|
||
if node_type == TYPE_PATH:
|
||
# it's a physical path
|
||
self._path_node_handler(client, iq_elt, query_elt, node, path)
|
||
elif node_type == TYPE_VIRTUAL:
|
||
assert not path
|
||
self._virtual_node_handler(client, peer_jid, iq_elt, query_elt, node)
|
||
else:
|
||
raise exceptions.InternalError(
|
||
_("unknown node type: {type}").format(type=node_type)
|
||
)
|
||
|
||
client.send(iq_result_elt)
|
||
|
||
def on_request(self, iq_elt, client):
|
||
return self._request_handler(
|
||
client, iq_elt, self._get_root_nodes_cb, self._get_files_from_node_cb
|
||
)
|
||
|
||
# Component
|
||
|
||
def _comp_parse_jids(self, client, iq_elt):
|
||
"""Retrieve peer_jid and owner to use from IQ stanza
|
||
|
||
@param iq_elt(domish.Element): IQ stanza of the FIS request
|
||
@return (tuple[jid.JID, jid.JID]): peer_jid and owner
|
||
"""
|
||
|
||
async def _comp_get_root_nodes_cb(self, client, iq_elt):
|
||
peer_jid, owner = client.get_owner_and_peer(iq_elt)
|
||
files_data = await self.host.memory.get_files(
|
||
client,
|
||
peer_jid=peer_jid,
|
||
parent="",
|
||
type_=C.FILE_TYPE_DIRECTORY,
|
||
owner=owner,
|
||
)
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
query_elt = iq_result_elt.addElement((NS_FIS, "query"))
|
||
for file_data in files_data:
|
||
name = file_data["name"]
|
||
directory_elt = query_elt.addElement("directory")
|
||
directory_elt["name"] = name
|
||
client.send(iq_result_elt)
|
||
|
||
async def _comp_get_files_from_node_cb(self, client, iq_elt, node_path):
|
||
"""Retrieve files from local files repository according to permissions
|
||
|
||
result stanza is then built and sent to requestor
|
||
@trigger XEP-0329_compGetFilesFromNode(client, iq_elt, owner, node_path,
|
||
files_data):
|
||
can be used to add data/elements
|
||
"""
|
||
peer_jid, owner = client.get_owner_and_peer(iq_elt)
|
||
try:
|
||
files_data = await self.host.memory.get_files(
|
||
client, peer_jid=peer_jid, path=node_path, owner=owner
|
||
)
|
||
except exceptions.NotFound:
|
||
self._iq_error(client, iq_elt)
|
||
return
|
||
except exceptions.PermissionError:
|
||
self._iq_error(client, iq_elt, condition='not-allowed')
|
||
return
|
||
except Exception as e:
|
||
tb = traceback.format_tb(e.__traceback__)
|
||
log.error(f"internal server error: {e}\n{''.join(tb)}")
|
||
self._iq_error(client, iq_elt, condition='internal-server-error')
|
||
return
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
query_elt = iq_result_elt.addElement((NS_FIS, "query"))
|
||
query_elt["node"] = node_path
|
||
if not self.host.trigger.point(
|
||
"XEP-0329_compGetFilesFromNode",
|
||
client,
|
||
iq_elt,
|
||
iq_result_elt,
|
||
owner,
|
||
node_path,
|
||
files_data
|
||
):
|
||
return
|
||
for file_data in files_data:
|
||
if file_data['type'] == C.FILE_TYPE_DIRECTORY:
|
||
directory_elt = query_elt.addElement("directory")
|
||
directory_elt['name'] = file_data['name']
|
||
self.host.trigger.point(
|
||
"XEP-0329_compGetFilesFromNode_build_directory",
|
||
client,
|
||
file_data,
|
||
directory_elt,
|
||
owner,
|
||
node_path,
|
||
)
|
||
else:
|
||
file_elt = self._jf.build_file_element_from_dict(
|
||
client,
|
||
file_data,
|
||
modified=file_data.get("modified", file_data["created"])
|
||
)
|
||
query_elt.addChild(file_elt)
|
||
client.send(iq_result_elt)
|
||
|
||
def on_component_request(self, iq_elt, client):
|
||
return self._request_handler(
|
||
client, iq_elt, self._comp_get_root_nodes_cb, self._comp_get_files_from_node_cb
|
||
)
|
||
|
||
async def _parse_result(self, client, peer_jid, iq_elt):
|
||
query_elt = next(iq_elt.elements(NS_FIS, "query"))
|
||
files = []
|
||
|
||
for elt in query_elt.elements():
|
||
if elt.name == "file":
|
||
# we have a file
|
||
try:
|
||
file_data = await self._jf.parse_file_element(client, elt)
|
||
except exceptions.DataError:
|
||
continue
|
||
file_data["type"] = C.FILE_TYPE_FILE
|
||
try:
|
||
thumbs = file_data['extra'][C.KEY_THUMBNAILS]
|
||
except KeyError:
|
||
log.debug(f"No thumbnail found for {file_data}")
|
||
else:
|
||
for thumb in thumbs:
|
||
if 'url' not in thumb and "id" in thumb:
|
||
try:
|
||
file_path = await self._b.get_file(client, peer_jid, thumb['id'])
|
||
except Exception as e:
|
||
log.warning(f"Can't get thumbnail {thumb['id']!r} for {file_data}: {e}")
|
||
else:
|
||
thumb['filename'] = file_path.name
|
||
|
||
elif elt.name == "directory" and elt.uri == NS_FIS:
|
||
# we have a directory
|
||
|
||
file_data = {"name": elt["name"], "type": C.FILE_TYPE_DIRECTORY}
|
||
self.host.trigger.point(
|
||
"XEP-0329_parseResult_directory",
|
||
client,
|
||
elt,
|
||
file_data,
|
||
)
|
||
else:
|
||
log.warning(
|
||
_("unexpected element, ignoring: {elt}")
|
||
.format(elt=elt.toXml())
|
||
)
|
||
continue
|
||
files.append(file_data)
|
||
return files
|
||
|
||
# affiliations #
|
||
|
||
async def _parse_element(self, client, iq_elt, element, namespace):
|
||
peer_jid, owner = client.get_owner_and_peer(iq_elt)
|
||
elt = next(iq_elt.elements(namespace, element))
|
||
path = Path("/", elt['path'])
|
||
if len(path.parts) < 2:
|
||
raise RootPathException
|
||
namespace = elt.getAttribute('namespace')
|
||
files_data = await self.host.memory.get_files(
|
||
client,
|
||
peer_jid=peer_jid,
|
||
path=str(path.parent),
|
||
name=path.name,
|
||
namespace=namespace,
|
||
owner=owner,
|
||
)
|
||
if len(files_data) != 1:
|
||
client.sendError(iq_elt, 'item-not-found')
|
||
raise exceptions.CancelError
|
||
file_data = files_data[0]
|
||
return peer_jid, elt, path, namespace, file_data
|
||
|
||
def _affiliations_get(self, service_jid_s, namespace, path, profile):
|
||
client = self.host.get_client(profile)
|
||
service = jid.JID(service_jid_s)
|
||
d = defer.ensureDeferred(self.affiliationsGet(
|
||
client, service, namespace or None, path))
|
||
d.addCallback(
|
||
lambda affiliations: {
|
||
str(entity): affiliation for entity, affiliation in affiliations.items()
|
||
}
|
||
)
|
||
return d
|
||
|
||
async def affiliationsGet(
|
||
self,
|
||
client: SatXMPPEntity,
|
||
service: jid.JID,
|
||
namespace: Optional[str],
|
||
path: str
|
||
) -> Dict[jid.JID, str]:
|
||
if not path:
|
||
raise ValueError(f"invalid path: {path!r}")
|
||
iq_elt = client.IQ("get")
|
||
iq_elt['to'] = service.full()
|
||
affiliations_elt = iq_elt.addElement((NS_FIS_AFFILIATION, "affiliations"))
|
||
if namespace:
|
||
affiliations_elt["namespace"] = namespace
|
||
affiliations_elt["path"] = path
|
||
iq_result_elt = await iq_elt.send()
|
||
try:
|
||
affiliations_elt = next(iq_result_elt.elements(NS_FIS_AFFILIATION, "affiliations"))
|
||
except StopIteration:
|
||
raise exceptions.DataError(f"Invalid result to affiliations request: {iq_result_elt.toXml()}")
|
||
|
||
affiliations = {}
|
||
for affiliation_elt in affiliations_elt.elements(NS_FIS_AFFILIATION, 'affiliation'):
|
||
try:
|
||
affiliations[jid.JID(affiliation_elt['jid'])] = affiliation_elt['affiliation']
|
||
except (KeyError, RuntimeError):
|
||
raise exceptions.DataError(
|
||
f"invalid affiliation element: {affiliation_elt.toXml()}")
|
||
|
||
return affiliations
|
||
|
||
def _affiliations_set(self, service_jid_s, namespace, path, affiliations, profile):
|
||
client = self.host.get_client(profile)
|
||
service = jid.JID(service_jid_s)
|
||
affiliations = {jid.JID(e): a for e, a in affiliations.items()}
|
||
return defer.ensureDeferred(self.affiliationsSet(
|
||
client, service, namespace or None, path, affiliations))
|
||
|
||
async def affiliationsSet(
|
||
self,
|
||
client: SatXMPPEntity,
|
||
service: jid.JID,
|
||
namespace: Optional[str],
|
||
path: str,
|
||
affiliations: Dict[jid.JID, str],
|
||
):
|
||
if not path:
|
||
raise ValueError(f"invalid path: {path!r}")
|
||
iq_elt = client.IQ("set")
|
||
iq_elt['to'] = service.full()
|
||
affiliations_elt = iq_elt.addElement((NS_FIS_AFFILIATION, "affiliations"))
|
||
if namespace:
|
||
affiliations_elt["namespace"] = namespace
|
||
affiliations_elt["path"] = path
|
||
for entity_jid, affiliation in affiliations.items():
|
||
affiliation_elt = affiliations_elt.addElement('affiliation')
|
||
affiliation_elt['jid'] = entity_jid.full()
|
||
affiliation_elt['affiliation'] = affiliation
|
||
await iq_elt.send()
|
||
|
||
def _on_component_affiliations_get(self, iq_elt, client):
|
||
iq_elt.handled = True
|
||
defer.ensureDeferred(self.on_component_affiliations_get(client, iq_elt))
|
||
|
||
async def on_component_affiliations_get(self, client, iq_elt):
|
||
try:
|
||
(
|
||
from_jid, affiliations_elt, path, namespace, file_data
|
||
) = await self._parse_element(client, iq_elt, "affiliations", NS_FIS_AFFILIATION)
|
||
except exceptions.CancelError:
|
||
return
|
||
except RootPathException:
|
||
# if root path is requested, we only get owner affiliation
|
||
peer_jid, owner = client.get_owner_and_peer(iq_elt)
|
||
is_owner = peer_jid.userhostJID() == owner
|
||
affiliations = {owner: 'owner'}
|
||
except exceptions.NotFound:
|
||
client.sendError(iq_elt, "item-not-found")
|
||
return
|
||
except Exception as e:
|
||
client.sendError(iq_elt, "internal-server-error", str(e))
|
||
return
|
||
else:
|
||
from_jid_bare = from_jid.userhostJID()
|
||
is_owner = from_jid_bare == file_data.get('owner')
|
||
affiliations = self.host.memory.get_file_affiliations(file_data)
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
affiliations_elt = iq_result_elt.addElement((NS_FIS_AFFILIATION, 'affiliations'))
|
||
for entity_jid, affiliation in affiliations.items():
|
||
if not is_owner and entity_jid.userhostJID() != from_jid_bare:
|
||
# only onwer can get all affiliations
|
||
continue
|
||
affiliation_elt = affiliations_elt.addElement('affiliation')
|
||
affiliation_elt['jid'] = entity_jid.userhost()
|
||
affiliation_elt['affiliation'] = affiliation
|
||
client.send(iq_result_elt)
|
||
|
||
def _on_component_affiliations_set(self, iq_elt, client):
|
||
iq_elt.handled = True
|
||
defer.ensureDeferred(self.on_component_affiliations_set(client, iq_elt))
|
||
|
||
async def on_component_affiliations_set(self, client, iq_elt):
|
||
try:
|
||
(
|
||
from_jid, affiliations_elt, path, namespace, file_data
|
||
) = await self._parse_element(client, iq_elt, "affiliations", NS_FIS_AFFILIATION)
|
||
except exceptions.CancelError:
|
||
return
|
||
except RootPathException:
|
||
client.sendError(iq_elt, 'bad-request', "Root path can't be used")
|
||
return
|
||
|
||
if from_jid.userhostJID() != file_data['owner']:
|
||
log.warning(
|
||
f"{from_jid} tried to modify {path} affiliations while the owner is "
|
||
f"{file_data['owner']}"
|
||
)
|
||
client.sendError(iq_elt, 'forbidden')
|
||
return
|
||
|
||
try:
|
||
affiliations = {
|
||
jid.JID(e['jid']): e['affiliation']
|
||
for e in affiliations_elt.elements(NS_FIS_AFFILIATION, 'affiliation')
|
||
}
|
||
except (KeyError, RuntimeError):
|
||
log.warning(
|
||
f"invalid affiliation element: {affiliations_elt.toXml()}"
|
||
)
|
||
client.sendError(iq_elt, 'bad-request', "invalid affiliation element")
|
||
return
|
||
except Exception as e:
|
||
log.error(
|
||
f"unexepected exception while setting affiliation element: {e}\n"
|
||
f"{affiliations_elt.toXml()}"
|
||
)
|
||
client.sendError(iq_elt, 'internal-server-error', f"{e}")
|
||
return
|
||
|
||
await self.host.memory.set_file_affiliations(client, file_data, affiliations)
|
||
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
client.send(iq_result_elt)
|
||
|
||
# configuration
|
||
|
||
def _configuration_get(self, service_jid_s, namespace, path, profile):
|
||
client = self.host.get_client(profile)
|
||
service = jid.JID(service_jid_s)
|
||
d = defer.ensureDeferred(self.configuration_get(
|
||
client, service, namespace or None, path))
|
||
d.addCallback(
|
||
lambda configuration: {
|
||
str(entity): affiliation for entity, affiliation in configuration.items()
|
||
}
|
||
)
|
||
return d
|
||
|
||
async def configuration_get(
|
||
self,
|
||
client: SatXMPPEntity,
|
||
service: jid.JID,
|
||
namespace: Optional[str],
|
||
path: str
|
||
) -> Dict[str, str]:
|
||
if not path:
|
||
raise ValueError(f"invalid path: {path!r}")
|
||
iq_elt = client.IQ("get")
|
||
iq_elt['to'] = service.full()
|
||
configuration_elt = iq_elt.addElement((NS_FIS_CONFIGURATION, "configuration"))
|
||
if namespace:
|
||
configuration_elt["namespace"] = namespace
|
||
configuration_elt["path"] = path
|
||
iq_result_elt = await iq_elt.send()
|
||
try:
|
||
configuration_elt = next(iq_result_elt.elements(NS_FIS_CONFIGURATION, "configuration"))
|
||
except StopIteration:
|
||
raise exceptions.DataError(f"Invalid result to configuration request: {iq_result_elt.toXml()}")
|
||
|
||
form = data_form.findForm(configuration_elt, NS_FIS_CONFIGURATION)
|
||
configuration = {f.var: f.value for f in form.fields.values()}
|
||
|
||
return configuration
|
||
|
||
def _configuration_set(self, service_jid_s, namespace, path, configuration, profile):
|
||
client = self.host.get_client(profile)
|
||
service = jid.JID(service_jid_s)
|
||
return defer.ensureDeferred(self.configuration_set(
|
||
client, service, namespace or None, path, configuration))
|
||
|
||
async def configuration_set(
|
||
self,
|
||
client: SatXMPPEntity,
|
||
service: jid.JID,
|
||
namespace: Optional[str],
|
||
path: str,
|
||
configuration: Dict[str, str],
|
||
):
|
||
if not path:
|
||
raise ValueError(f"invalid path: {path!r}")
|
||
iq_elt = client.IQ("set")
|
||
iq_elt['to'] = service.full()
|
||
configuration_elt = iq_elt.addElement((NS_FIS_CONFIGURATION, "configuration"))
|
||
if namespace:
|
||
configuration_elt["namespace"] = namespace
|
||
configuration_elt["path"] = path
|
||
form = data_form.Form(formType="submit", formNamespace=NS_FIS_CONFIGURATION)
|
||
form.makeFields(configuration)
|
||
configuration_elt.addChild(form.toElement())
|
||
await iq_elt.send()
|
||
|
||
def _on_component_configuration_get(self, iq_elt, client):
|
||
iq_elt.handled = True
|
||
defer.ensureDeferred(self.on_component_configuration_get(client, iq_elt))
|
||
|
||
async def on_component_configuration_get(self, client, iq_elt):
|
||
try:
|
||
(
|
||
from_jid, configuration_elt, path, namespace, file_data
|
||
) = await self._parse_element(client, iq_elt, "configuration", NS_FIS_CONFIGURATION)
|
||
except exceptions.CancelError:
|
||
return
|
||
except RootPathException:
|
||
client.sendError(iq_elt, 'bad-request', "Root path can't be used")
|
||
return
|
||
try:
|
||
access_type = file_data['access'][C.ACCESS_PERM_READ]['type']
|
||
except KeyError:
|
||
access_model = 'whitelist'
|
||
else:
|
||
access_model = 'open' if access_type == C.ACCESS_TYPE_PUBLIC else 'whitelist'
|
||
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
configuration_elt = iq_result_elt.addElement((NS_FIS_CONFIGURATION, 'configuration'))
|
||
form = data_form.Form(formType="form", formNamespace=NS_FIS_CONFIGURATION)
|
||
form.makeFields({'access_model': access_model})
|
||
configuration_elt.addChild(form.toElement())
|
||
client.send(iq_result_elt)
|
||
|
||
async def _set_configuration(self, client, configuration_elt, file_data):
|
||
form = data_form.findForm(configuration_elt, NS_FIS_CONFIGURATION)
|
||
for name, value in form.items():
|
||
if name == 'access_model':
|
||
await self.host.memory.set_file_access_model(client, file_data, value)
|
||
else:
|
||
# TODO: send a IQ error?
|
||
log.warning(
|
||
f"Trying to set a not implemented configuration option: {name}")
|
||
|
||
def _on_component_configuration_set(self, iq_elt, client):
|
||
iq_elt.handled = True
|
||
defer.ensureDeferred(self.on_component_configuration_set(client, iq_elt))
|
||
|
||
async def on_component_configuration_set(self, client, iq_elt):
|
||
try:
|
||
(
|
||
from_jid, configuration_elt, path, namespace, file_data
|
||
) = await self._parse_element(client, iq_elt, "configuration", NS_FIS_CONFIGURATION)
|
||
except exceptions.CancelError:
|
||
return
|
||
except RootPathException:
|
||
client.sendError(iq_elt, 'bad-request', "Root path can't be used")
|
||
return
|
||
|
||
from_jid_bare = from_jid.userhostJID()
|
||
is_owner = from_jid_bare == file_data.get('owner')
|
||
if not is_owner:
|
||
log.warning(
|
||
f"{from_jid} tried to modify {path} configuration while the owner is "
|
||
f"{file_data['owner']}"
|
||
)
|
||
client.sendError(iq_elt, 'forbidden')
|
||
return
|
||
|
||
await self._set_configuration(client, configuration_elt, file_data)
|
||
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
client.send(iq_result_elt)
|
||
|
||
# directory creation
|
||
|
||
def _create_dir(self, service_jid_s, namespace, path, configuration, profile):
|
||
client = self.host.get_client(profile)
|
||
service = jid.JID(service_jid_s)
|
||
return defer.ensureDeferred(self.create_dir(
|
||
client, service, namespace or None, path, configuration or None))
|
||
|
||
async def create_dir(
|
||
self,
|
||
client: SatXMPPEntity,
|
||
service: jid.JID,
|
||
namespace: Optional[str],
|
||
path: str,
|
||
configuration: Optional[Dict[str, str]],
|
||
):
|
||
if not path:
|
||
raise ValueError(f"invalid path: {path!r}")
|
||
iq_elt = client.IQ("set")
|
||
iq_elt['to'] = service.full()
|
||
create_dir_elt = iq_elt.addElement((NS_FIS_CREATE, "dir"))
|
||
if namespace:
|
||
create_dir_elt["namespace"] = namespace
|
||
create_dir_elt["path"] = path
|
||
if configuration:
|
||
configuration_elt = create_dir_elt.addElement((NS_FIS_CONFIGURATION, "configuration"))
|
||
form = data_form.Form(formType="submit", formNamespace=NS_FIS_CONFIGURATION)
|
||
form.makeFields(configuration)
|
||
configuration_elt.addChild(form.toElement())
|
||
await iq_elt.send()
|
||
|
||
def _on_component_create_dir(self, iq_elt, client):
|
||
iq_elt.handled = True
|
||
defer.ensureDeferred(self.on_component_create_dir(client, iq_elt))
|
||
|
||
async def on_component_create_dir(self, client, iq_elt):
|
||
peer_jid, owner = client.get_owner_and_peer(iq_elt)
|
||
if peer_jid.host not in client._file_sharing_allowed_hosts:
|
||
client.sendError(iq_elt, 'forbidden')
|
||
return
|
||
create_dir_elt = next(iq_elt.elements(NS_FIS_CREATE, "dir"))
|
||
namespace = create_dir_elt.getAttribute('namespace')
|
||
path = Path("/", create_dir_elt['path'])
|
||
if len(path.parts) < 2:
|
||
client.sendError(iq_elt, 'bad-request', "Root path can't be used")
|
||
return
|
||
# for root directories, we check permission here
|
||
if len(path.parts) == 2 and owner != peer_jid.userhostJID():
|
||
log.warning(
|
||
f"{peer_jid} is trying to create a dir at {owner}'s repository:\n"
|
||
f"path: {path}\nnamespace: {namespace!r}"
|
||
)
|
||
client.sendError(iq_elt, 'forbidden', "You can't create a directory there")
|
||
return
|
||
# when going further into the path, the permissions will be checked by get_files
|
||
files_data = await self.host.memory.get_files(
|
||
client,
|
||
peer_jid=peer_jid,
|
||
path=path.parent,
|
||
namespace=namespace,
|
||
owner=owner,
|
||
)
|
||
if path.name in [d['name'] for d in files_data]:
|
||
log.warning(
|
||
f"Conflict when trying to create a directory (from: {peer_jid} "
|
||
f"namespace: {namespace!r} path: {path!r})"
|
||
)
|
||
client.sendError(
|
||
iq_elt, 'conflict', "there is already a file or dir at this path")
|
||
return
|
||
|
||
try:
|
||
configuration_elt = next(
|
||
create_dir_elt.elements(NS_FIS_CONFIGURATION, 'configuration'))
|
||
except StopIteration:
|
||
configuration_elt = None
|
||
|
||
await self.host.memory.set_file(
|
||
client,
|
||
path.name,
|
||
path=path.parent,
|
||
type_=C.FILE_TYPE_DIRECTORY,
|
||
namespace=namespace,
|
||
owner=owner,
|
||
peer_jid=peer_jid
|
||
)
|
||
|
||
if configuration_elt is not None:
|
||
file_data = (await self.host.memory.get_files(
|
||
client,
|
||
peer_jid=peer_jid,
|
||
path=path.parent,
|
||
name=path.name,
|
||
namespace=namespace,
|
||
owner=owner,
|
||
))[0]
|
||
|
||
await self._set_configuration(client, configuration_elt, file_data)
|
||
|
||
iq_result_elt = xmlstream.toResponse(iq_elt, "result")
|
||
client.send(iq_result_elt)
|
||
|
||
# file methods #
|
||
|
||
def _serialize_data(self, files_data):
|
||
for file_data in files_data:
|
||
for key, value in file_data.items():
|
||
file_data[key] = (
|
||
json.dumps(value) if key in ("extra",) else str(value)
|
||
)
|
||
return files_data
|
||
|
||
def _list_files(self, target_jid, path, extra, profile):
|
||
client = self.host.get_client(profile)
|
||
target_jid = client.jid if not target_jid else jid.JID(target_jid)
|
||
d = defer.ensureDeferred(self.list_files(client, target_jid, path or None))
|
||
d.addCallback(self._serialize_data)
|
||
return d
|
||
|
||
async def list_files(self, client, peer_jid, path=None, extra=None):
|
||
"""List file shared by an entity
|
||
|
||
@param peer_jid(jid.JID): jid of the sharing entity
|
||
@param path(unicode, None): path to the directory containing shared files
|
||
None to get root directories
|
||
@param extra(dict, None): extra data
|
||
@return list(dict): shared files
|
||
"""
|
||
iq_elt = client.IQ("get")
|
||
iq_elt["to"] = peer_jid.full()
|
||
query_elt = iq_elt.addElement((NS_FIS, "query"))
|
||
if path:
|
||
query_elt["node"] = path
|
||
iq_result_elt = await iq_elt.send()
|
||
return await self._parse_result(client, peer_jid, iq_result_elt)
|
||
|
||
def _local_shares_get(self, profile):
|
||
client = self.host.get_client(profile)
|
||
return self.local_shares_get(client)
|
||
|
||
def local_shares_get(self, client):
|
||
return list(client._XEP_0329_root_node.get_shared_paths().keys())
|
||
|
||
def _share_path(self, name, path, access, profile):
|
||
client = self.host.get_client(profile)
|
||
access = json.loads(access)
|
||
return self.share_path(client, name or None, path, access)
|
||
|
||
def share_path(self, client, name, path, access):
|
||
if client.is_component:
|
||
raise exceptions.ClientTypeError
|
||
if not os.path.exists(path):
|
||
raise ValueError(_("This path doesn't exist!"))
|
||
if not path or not path.strip(" /"):
|
||
raise ValueError(_("A path need to be specified"))
|
||
if not isinstance(access, dict):
|
||
raise ValueError(_("access must be a dict"))
|
||
|
||
node = client._XEP_0329_root_node
|
||
node_type = TYPE_PATH
|
||
if os.path.isfile(path):
|
||
# we have a single file, the workflow is diferrent as we store all single
|
||
# files in the same dir
|
||
node = node.get_or_create(SINGLE_FILES_DIR)
|
||
|
||
if not name:
|
||
name = os.path.basename(path.rstrip(" /"))
|
||
if not name:
|
||
raise exceptions.InternalError(_("Can't find a proper name"))
|
||
|
||
if name in node or name == SINGLE_FILES_DIR:
|
||
idx = 1
|
||
new_name = name + "_" + str(idx)
|
||
while new_name in node:
|
||
idx += 1
|
||
new_name = name + "_" + str(idx)
|
||
name = new_name
|
||
log.info(_(
|
||
"A directory with this name is already shared, renamed to {new_name} "
|
||
"[{profile}]".format( new_name=new_name, profile=client.profile)))
|
||
|
||
ShareNode(name=name, parent=node, type_=node_type, access=access, path=path)
|
||
self.host.bridge.fis_shared_path_new(path, name, client.profile)
|
||
return name
|
||
|
||
def _unshare_path(self, path, profile):
|
||
client = self.host.get_client(profile)
|
||
return self.unshare_path(client, path)
|
||
|
||
def unshare_path(self, client, path):
|
||
nodes = client._XEP_0329_root_node.find_by_local_path(path)
|
||
for node in nodes:
|
||
node.remove_from_parent()
|
||
self.host.bridge.fis_shared_path_removed(path, client.profile)
|
||
|
||
|
||
@implementer(iwokkel.IDisco)
|
||
class XEP_0329_handler(xmlstream.XMPPHandler):
|
||
|
||
def __init__(self, plugin_parent):
|
||
self.plugin_parent = plugin_parent
|
||
self.host = plugin_parent.host
|
||
|
||
def connectionInitialized(self):
|
||
if self.parent.is_component:
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_REQUEST, self.plugin_parent.on_component_request, client=self.parent
|
||
)
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_AFFILIATION_GET,
|
||
self.plugin_parent._on_component_affiliations_get,
|
||
client=self.parent
|
||
)
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_AFFILIATION_SET,
|
||
self.plugin_parent._on_component_affiliations_set,
|
||
client=self.parent
|
||
)
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_CONFIGURATION_GET,
|
||
self.plugin_parent._on_component_configuration_get,
|
||
client=self.parent
|
||
)
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_CONFIGURATION_SET,
|
||
self.plugin_parent._on_component_configuration_set,
|
||
client=self.parent
|
||
)
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_CREATE_DIR,
|
||
self.plugin_parent._on_component_create_dir,
|
||
client=self.parent
|
||
)
|
||
else:
|
||
self.xmlstream.addObserver(
|
||
IQ_FIS_REQUEST, self.plugin_parent.on_request, client=self.parent
|
||
)
|
||
|
||
def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
|
||
return [disco.DiscoFeature(NS_FIS)]
|
||
|
||
def getDiscoItems(self, requestor, target, nodeIdentifier=""):
|
||
return []
|