Mercurial > libervia-backend
view sat/plugins/plugin_misc_file.py @ 3187:d92a144f3589
plugin download: use cache if dest_path is empty:
if dest_path is not set, the file will be downloaded in cache. A new name will be
generated using a hash of the uri. If the file is already downloded in cache, it won't be
downloaded again (in this case returned progress_id is an empty string).
author | Goffi <goffi@goffi.org> |
---|---|
date | Wed, 26 Feb 2020 22:03:11 +0100 |
parents | f2bb57348587 |
children | 404d4b29de52 |
line wrap: on
line source
#!/usr/bin/env python3 # SAT plugin for file tansfer # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.i18n import _, D_ from sat.core.constants import Const as C from sat.core.log import getLogger log = getLogger(__name__) from sat.core import exceptions from sat.tools import xml_tools from sat.tools import stream from twisted.internet import defer from twisted.words.protocols.jabber import jid import os import os.path PLUGIN_INFO = { C.PI_NAME: "File Tansfer", C.PI_IMPORT_NAME: "FILE", C.PI_TYPE: C.PLUG_TYPE_MISC, C.PI_MODES: C.PLUG_MODE_BOTH, C.PI_MAIN: "FilePlugin", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _( """File Tansfer Management: This plugin manage the various ways of sending a file, and choose the best one.""" ), } SENDING = D_("Please select a file to send to {peer}") SENDING_TITLE = D_("File sending") CONFIRM = D_( '{peer} wants to send the file "{name}" to you:\n{desc}\n\nThe file has a size of ' '{size_human}\n\nDo you accept ?' ) CONFIRM_TITLE = D_("Confirm file transfer") CONFIRM_OVERWRITE = D_("File {} already exists, are you sure you want to overwrite ?") CONFIRM_OVERWRITE_TITLE = D_("File exists") SECURITY_LIMIT = 30 PROGRESS_ID_KEY = "progress_id" class FilePlugin: File = stream.SatFile def __init__(self, host): log.info(_("plugin File initialization")) self.host = host host.bridge.addMethod( "fileSend", ".plugin", in_sign="ssssa{ss}s", out_sign="a{ss}", method=self._fileSend, async_=True, ) self._file_callbacks = [] host.importMenu( (D_("Action"), D_("send file")), self._fileSendMenu, security_limit=10, help_string=D_("Send a file"), type_=C.MENU_SINGLE, ) def _fileSend(self, peer_jid_s, filepath, name="", file_desc="", extra=None, profile=C.PROF_KEY_NONE): client = self.host.getClient(profile) return self.fileSend( client, jid.JID(peer_jid_s), filepath, name or None, file_desc or None, extra ) @defer.inlineCallbacks def fileSend( self, client, peer_jid, filepath, filename=None, file_desc=None, extra=None ): """Send a file using best available method @param peer_jid(jid.JID): jid of the destinee @param filepath(str): absolute path to the file @param filename(unicode, None): name to use, or None to find it from filepath @param file_desc(unicode, None): description of the file @param profile: %(doc_profile)s @return (dict): action dictionary, with progress id in case of success, else xmlui message """ if not os.path.isfile(filepath): raise exceptions.DataError("The given path doesn't link to a file") if not filename: filename = os.path.basename(filepath) or "_" for namespace, callback, priority, method_name in self._file_callbacks: has_feature = yield self.host.hasFeature(client, namespace, peer_jid) if has_feature: log.info( "{name} method will be used to send the file".format( name=method_name ) ) progress_id = yield callback( client, peer_jid, filepath, filename, file_desc, extra ) defer.returnValue({"progress": progress_id}) msg = "Can't find any method to send file to {jid}".format(jid=peer_jid.full()) log.warning(msg) defer.returnValue( { "xmlui": xml_tools.note( "Can't transfer file", msg, C.XMLUI_DATA_LVL_WARNING ).toXml() } ) def _onFileChoosed(self, client, peer_jid, data): cancelled = C.bool(data.get("cancelled", C.BOOL_FALSE)) if cancelled: return path = data["path"] return self.fileSend(client, peer_jid, path) def _fileSendMenu(self, data, profile): """ XMLUI activated by menu: return file sending UI @param profile: %(doc_profile)s """ try: jid_ = jid.JID(data["jid"]) except RuntimeError: raise exceptions.DataError(_("Invalid JID")) file_choosed_id = self.host.registerCallback( lambda data, profile: self._onFileChoosed( self.host.getClient(profile), jid_, data ), with_data=True, one_shot=True, ) xml_ui = xml_tools.XMLUI( C.XMLUI_DIALOG, dialog_opt={ C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_FILE, C.XMLUI_DATA_MESS: _(SENDING).format(peer=jid_.full()), }, title=_(SENDING_TITLE), submit_id=file_choosed_id, ) return {"xmlui": xml_ui.toXml()} def register(self, namespace, callback, priority=0, method_name=None): """Register a fileSending method @param namespace(unicode): XEP namespace @param callback(callable): method to call (must have the same signature as [fileSend]) @param priority(int): pririoty of this method, the higher available will be used @param method_name(unicode): short name for the method, namespace will be used if None """ for data in self._file_callbacks: if namespace == data[0]: raise exceptions.ConflictError( "A method with this namespace is already registered" ) self._file_callbacks.append( (namespace, callback, priority, method_name or namespace) ) self._file_callbacks.sort(key=lambda data: data[2], reverse=True) def unregister(self, namespace): for idx, data in enumerate(self._file_callbacks): if data[0] == namespace: del [idx] return raise exceptions.NotFound("The namespace to unregister doesn't exist") # Dialogs with user # the overwrite check is done here def openFileWrite(self, client, file_path, transfer_data, file_data, stream_object): """create SatFile or FileStremaObject for the requested file and fill suitable data """ if stream_object: assert "stream_object" not in transfer_data transfer_data["stream_object"] = stream.FileStreamObject( self.host, client, file_path, mode="wb", uid=file_data[PROGRESS_ID_KEY], size=file_data["size"], data_cb=file_data.get("data_cb"), ) else: assert "file_obj" not in transfer_data transfer_data["file_obj"] = stream.SatFile( self.host, client, file_path, mode="wb", uid=file_data[PROGRESS_ID_KEY], size=file_data["size"], data_cb=file_data.get("data_cb"), ) def _gotConfirmation( self, data, client, peer_jid, transfer_data, file_data, stream_object ): """Called when the permission and dest path have been received @param peer_jid(jid.JID): jid of the file sender @param transfer_data(dict): same as for [self.getDestDir] @param file_data(dict): same as for [self.getDestDir] @param stream_object(bool): same as for [self.getDestDir] return (bool): True if copy is wanted and OK False if user wants to cancel if file exists ask confirmation and call again self._getDestDir if needed """ if data.get("cancelled", False): return False path = data["path"] file_data["file_path"] = file_path = os.path.join(path, file_data["name"]) log.debug("destination file path set to {}".format(file_path)) # we manage case where file already exists if os.path.exists(file_path): def check_overwrite(overwrite): if overwrite: self.openFileWrite( client, file_path, transfer_data, file_data, stream_object ) return True else: return self.getDestDir(client, peer_jid, transfer_data, file_data) exists_d = xml_tools.deferConfirm( self.host, _(CONFIRM_OVERWRITE).format(file_path), _(CONFIRM_OVERWRITE_TITLE), action_extra={ "meta_from_jid": peer_jid.full(), "meta_type": C.META_TYPE_OVERWRITE, "meta_progress_id": file_data[PROGRESS_ID_KEY], }, security_limit=SECURITY_LIMIT, profile=client.profile, ) exists_d.addCallback(check_overwrite) return exists_d self.openFileWrite(client, file_path, transfer_data, file_data, stream_object) return True def getDestDir(self, client, peer_jid, transfer_data, file_data, stream_object=False): """Request confirmation and destination dir to user Overwrite confirmation is managed. if transfer is confirmed, 'file_obj' is added to transfer_data @param peer_jid(jid.JID): jid of the file sender @param filename(unicode): name of the file @param transfer_data(dict): data of the transfer session, it will be only used to store the file_obj. "file_obj" (or "stream_object") key *MUST NOT* exist before using getDestDir @param file_data(dict): information about the file to be transfered It MUST contain the following keys: - peer_jid (jid.JID): other peer jid - name (unicode): name of the file to trasnsfer the name must not be empty or contain a "/" character - size (int): size of the file - desc (unicode): description of the file - progress_id (unicode): id to use for progression It *MUST NOT* contain the "peer" key It may contain: - data_cb (callable): method called on each data read/write "file_path" will be added to this dict once destination selected "size_human" will also be added with human readable file size @param stream_object(bool): if True, a stream_object will be used instead of file_obj a stream.FileStreamObject will be used return (defer.Deferred): True if transfer is accepted """ cont, ret_value = self.host.trigger.returnPoint( "FILE_getDestDir", client, peer_jid, transfer_data, file_data, stream_object ) if not cont: return ret_value filename = file_data["name"] assert filename and not "/" in filename assert PROGRESS_ID_KEY in file_data # human readable size file_data["size_human"] = "{:.6n} Mio".format( float(file_data["size"]) / (1024 ** 2) ) d = xml_tools.deferDialog( self.host, _(CONFIRM).format(peer=peer_jid.full(), **file_data), _(CONFIRM_TITLE), type_=C.XMLUI_DIALOG_FILE, options={C.XMLUI_DATA_FILETYPE: C.XMLUI_DATA_FILETYPE_DIR}, action_extra={ "meta_from_jid": peer_jid.full(), "meta_type": C.META_TYPE_FILE, "meta_progress_id": file_data[PROGRESS_ID_KEY], }, security_limit=SECURITY_LIMIT, profile=client.profile, ) d.addCallback( self._gotConfirmation, client, peer_jid, transfer_data, file_data, stream_object, ) return d