Mercurial > libervia-backend
view src/plugins/plugin_misc_upload.py @ 2387:a59f2abd970e
frontends (xmlui): added ValueGetter.keys
author | Goffi <goffi@goffi.org> |
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date | Fri, 20 Oct 2017 08:39:58 +0200 |
parents | 33c8c4973743 |
children | 8b37a62336c3 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT plugin for file tansfer # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.i18n import _, D_ from sat.core.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 twisted.internet import defer from twisted.words.protocols.jabber import jid import os import os.path PLUGIN_INFO = { C.PI_NAME: "File Upload", C.PI_IMPORT_NAME: "UPLOAD", C.PI_TYPE: C.PLUG_TYPE_MISC, C.PI_MAIN: "UploadPlugin", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _("""File upload management""") } UPLOADING = D_(u'Please select a file to upload') UPLOADING_TITLE = D_(u'File upload') BOOL_OPTIONS = ('ignore_tls_errors',) class UploadPlugin(object): # TODO: plugin unload def __init__(self, host): log.info(_("plugin Upload initialization")) self.host = host host.bridge.addMethod("fileUpload", ".plugin", in_sign='sssa{ss}s', out_sign='a{ss}', method=self._fileUpload, async=True) self._upload_callbacks = [] def _fileUpload(self, filepath, filename, upload_jid_s='', options=None, profile=C.PROF_KEY_NONE): client = self.host.getClient(profile) upload_jid = jid.JID(upload_jid_s) if upload_jid_s else None if options is None: options = {} # we convert values that are well-known booleans for bool_option in BOOL_OPTIONS: try: options[bool_option] = C.bool(options[bool_option]) except KeyError: pass return self.fileUpload(client, filepath, filename or None, upload_jid, options or None) def fileUpload(self, client, filepath, filename, upload_jid, options): """Send a file using best available method parameters are the same as for [upload] @return (dict): action dictionary, with progress id in case of success, else xmlui message """ def uploadCb(data): progress_id, dummy = data return {'progress': progress_id} def uploadEb(fail): msg = unicode(fail) log.warning(msg) return {'xmlui': xml_tools.note(u"Can't upload file", msg, C.XMLUI_DATA_LVL_WARNING).toXml()} d = self.upload(client, filepath, filename, upload_jid, options) d.addCallback(uploadCb) d.addErrback(uploadEb) return d @defer.inlineCallbacks def upload(self, client, filepath, filename=None, upload_jid=None, options=None): """Send a file using best available method @param filepath(str): absolute path to the file @param filename(None, unicode): name to use for the upload None to use basename of the path @param upload_jid(jid.JID, None): upload capable entity jid, or None to use autodetected, if possible @param options(dict): option to use for the upload, may be: - ignore_tls_errors(bool): True to ignore SSL/TLS certificate verification used only if HTTPS transport is needed @param profile: %(doc_profile)s @return (tuple[unicode,D(unicode)]): progress_id and a Deferred which fire download URL when upload is finished """ if options is None: options = {} if not os.path.isfile(filepath): raise exceptions.DataError(u"The given path doesn't link to a file") for method_name, available_cb, upload_cb, priority in self._upload_callbacks: try: upload_jid = yield available_cb(upload_jid, client.profile) except exceptions.NotFound: continue # no entity managing this extension found log.info(u"{name} method will be used to upload the file".format(name=method_name)) progress_id_d, download_d = yield upload_cb(filepath, filename, upload_jid, options, client.profile) progress_id = yield progress_id_d defer.returnValue((progress_id, download_d)) raise exceptions.NotFound(u"Can't find any method to upload a file") def register(self, method_name, available_cb, upload_cb, priority=0): """Register a fileUploading method @param method_name(unicode): short name for the method, must be unique @param available_cb(callable): method to call to check if this method is usable the callback must take two arguments: upload_jid (can be None) and profile the callback must return the first entity found (being upload_jid or one of its components) exceptions.NotFound must be raised if no entity has been found @param upload_cb(callable): method to upload a file must have the same signature as [fileUpload] must return a tuple with progress_id and a Deferred which fire download URL when upload is finished @param priority(int): pririoty of this method, the higher available will be used """ assert method_name for data in self._upload_callbacks: if method_name == data[0]: raise exceptions.ConflictError(u'A method with this name is already registered') self._upload_callbacks.append((method_name, available_cb, upload_cb, priority)) self._upload_callbacks.sort(key=lambda data: data[3], reverse=True) def unregister(self, method_name): for idx, data in enumerate(self._upload_callbacks): if data[0] == method_name: del [idx] return raise exceptions.NotFound(u"The name to unregister doesn't exist")