libervia-backend: sat/plugins/plugin_misc

annotate sat/plugins/plugin_misc_download.py @ 3202:2e892f9f54f6

plugin attachment: remove "path" from attachment once used: "path" refers to a local path of a file, we don't want to store it in database as the file may be in a temporary location, or even be a temporary file. So once the file has been uploaded, we remove it.

author	Goffi <goffi@goffi.org>
date	Fri, 06 Mar 2020 18:19:03 +0100
parents	d92a144f3589
children	2c0628f3927e

rev	line source
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	1 #!/usr/bin/env python3
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	2
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	3 # SAT plugin for downloading files
3136 9d0df638c8b4 dates update Goffi <goffi@goffi.org> parents: 3088 diff changeset	4 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	5
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	6 # This program is free software: you can redistribute it and/or modify
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	7 # it under the terms of the GNU Affero General Public License as published by
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	8 # the Free Software Foundation, either version 3 of the License, or
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	9 # (at your option) any later version.
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	10
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	11 # This program is distributed in the hope that it will be useful,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	14 # GNU Affero General Public License for more details.
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	15
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	16 # You should have received a copy of the GNU Affero General Public License
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	18
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	19 from pathlib import Path
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	20 from urllib.parse import urlparse, unquote
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	21 import hashlib
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	22 import treq
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	23 from twisted.internet import defer
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	24 from twisted.words.protocols.jabber import error as jabber_error
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	25 from sat.core.i18n import _, D_
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	26 from sat.core.constants import Const as C
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	27 from sat.core.log import getLogger
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	28 from sat.core import exceptions
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	29 from sat.tools import xml_tools
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	30 from sat.tools.common import data_format
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	31 from sat.tools import stream
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	32
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	33 log = getLogger(__name__)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	34
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	35
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	36 PLUGIN_INFO = {
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	37 C.PI_NAME: "File Download",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	38 C.PI_IMPORT_NAME: "DOWNLOAD",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	39 C.PI_TYPE: C.PLUG_TYPE_MISC,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	40 C.PI_MAIN: "DownloadPlugin",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	41 C.PI_HANDLER: "no",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	42 C.PI_DESCRIPTION: _("""File download management"""),
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	43 }
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	44
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	45
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	46 class DownloadPlugin(object):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	47
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	48 def __init__(self, host):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	49 log.info(_("plugin Download initialization"))
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	50 self.host = host
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	51 host.bridge.addMethod(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	52 "fileDownload",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	53 ".plugin",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	54 in_sign="ssss",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	55 out_sign="a{ss}",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	56 method=self._fileDownload,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	57 async_=True,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	58 )
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	59 host.bridge.addMethod(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	60 "fileDownloadComplete",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	61 ".plugin",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	62 in_sign="ssss",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	63 out_sign="s",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	64 method=self._fileDownloadComplete,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	65 async_=True,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	66 )
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	67 self._download_callbacks = {}
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	68 self.registerScheme('http', self.downloadHTTP)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	69 self.registerScheme('https', self.downloadHTTP)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	70
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	71 def _fileDownload(self, uri, dest_path, options_s, profile):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	72 client = self.host.getClient(profile)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	73 options = data_format.deserialise(options_s)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	74
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	75 return defer.ensureDeferred(self.fileDownload(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	76 client, uri, Path(dest_path), options
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	77 ))
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	78
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	79 async def fileDownload(self, client, uri, dest_path, options=None):
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	80 """Download a file using best available method
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	81
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	82 parameters are the same as for [download]
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	83 @return (dict): action dictionary, with progress id in case of success, else xmlui
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	84 message
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	85 """
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	86 try:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	87 progress_id, __ = await self.download(client, uri, dest_path, options)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	88 except Exception as e:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	89 if (isinstance(e, jabber_error.StanzaError)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	90 and e.condition == 'not-acceptable'):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	91 reason = e.text
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	92 else:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	93 reason = str(e)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	94 msg = D_("Can't download file: {reason}").format(reason=reason)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	95 log.warning(msg)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	96 return {
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	97 "xmlui": xml_tools.note(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	98 msg, D_("Can't download file"), C.XMLUI_DATA_LVL_WARNING
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	99 ).toXml()
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	100 }
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	101 else:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	102 return {"progress": progress_id}
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	103
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	104 def _fileDownloadComplete(self, uri, dest_path, options_s, profile):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	105 client = self.host.getClient(profile)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	106 options = data_format.deserialise(options_s)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	107
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	108 d = defer.ensureDeferred(self.fileDownloadComplete(
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	109 client, uri, dest_path, options
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	110 ))
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	111 d.addCallback(lambda path: str(path))
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	112 return d
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	113
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	114 async def fileDownloadComplete(self, client, uri, dest_path, options=None):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	115 """Helper method to fully download a file and return its path
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	116
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	117 parameters are the same as for [download]
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	118 @return (str): path to the downloaded file
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	119 use empty string to store the file in cache
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	120 """
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	121 __, download_d = await self.download(client, uri, dest_path, options)
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	122 dest_path = await download_d
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	123 return dest_path
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	124
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	125 async def download(self, client, uri, dest_path, options=None):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	126 """Send a file using best available method
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	127
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	128 @param uri(str): URI to the file to download
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	129 @param dest_path(str, Path): where the file must be downloaded
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	130 if empty string, the file will be stored in local path
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	131 @param options(dict, None): options depending on scheme handler
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	132 Some common options:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	133 - ignore_tls_errors(bool): True to ignore SSL/TLS certificate verification
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	134 used only if HTTPS transport is needed
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	135 @return (tuple[unicode,D(unicode)]): progress_id and a Deferred which fire
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	136 download URL when download is finished
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	137 progress_id can be empty string if the file already exist and is not
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	138 downloaded again (can happen if cache is used with empty dest_path)
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	139 """
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	140 if options is None:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	141 options = {}
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	142
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	143 uri_parsed = urlparse(uri, 'http')
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	144 if dest_path:
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	145 dest_path = Path(dest_path)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	146 else:
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	147 filename = Path(unquote(uri_parsed.path)).name.strip() or C.FILE_DEFAULT_NAME
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	148 # we don't use Path.suffixes because we don't want to have more than 2
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	149 # suffixes, but we still want to handle suffixes like "tar.gz".
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	150 stem, *suffixes = filename.rsplit('.', 2)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	151 # we hash the URL to have an unique identifier, and avoid double download
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	152 url_hash = hashlib.sha256(uri_parsed.geturl().encode()).hexdigest()
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	153 uid = f"{stem}_{url_hash}"
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	154 cache_data = client.cache.getMetadata(uid)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	155 if cache_data is not None:
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	156 # file is already in cache, we return it
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	157 download_d = defer.succeed(cache_data['path'])
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	158 return '', download_d
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	159 else:
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	160 # the file is not in cache
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	161 unique_name = '.'.join([uid] + suffixes)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	162 with client.cache.cacheData("DOWNLOAD", uid, filename=unique_name) as f:
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	163 # we close the file and only use its name, the file will be opened
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	164 # by the registered callback
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	165 dest_path = f.name
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	166 try:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	167 callback = self._download_callbacks[uri_parsed.scheme]
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	168 except KeyError:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	169 raise exceptions.NotFound(f"Can't find any handler for uri {uri}")
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	170 else:
3187 d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	171 progress_id, download_d = await callback(
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	172 client, uri_parsed, dest_path, options)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	173 download_d.addCallback(lambda __: dest_path)
d92a144f3589 plugin download: use cache if dest_path is empty: Goffi <goffi@goffi.org> parents: 3186 diff changeset	174 return progress_id, download_d
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	175
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	176 def registerScheme(self, scheme, download_cb):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	177 """Register an URI scheme handler
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	178
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	179 @param scheme(unicode): URI scheme this callback is handling
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	180 @param download_cb(callable): callback to download a file
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	181 arguments are:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	182 - (SatXMPPClient) client
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	183 - (urllib.parse.SplitResult) parsed URI
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	184 - (Path) destination path where the file must be downloaded
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	185 - (dict) options
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	186 must return a tuple with progress_id and a Deferred which fire when download
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	187 is finished
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	188 """
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	189 if scheme in self._download_callbacks:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	190 raise exceptions.ConflictError(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	191 f"A method with scheme {scheme!r} is already registered"
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	192 )
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	193 self._download_callbacks[scheme] = download_cb
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	194
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	195 def unregister(self, scheme):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	196 try:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	197 del self._download_callbacks[scheme]
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	198 except KeyError:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	199 raise exceptions.NotFound(f"No callback registered for scheme {scheme!r}")
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	200
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	201 def errbackDownload(self, file_obj, download_d, resp):
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	202 """Set file_obj and download deferred appropriatly after a network error
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	203
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	204 @param file_obj(SatFile): file where the download must be done
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	205 @param download_d(Deferred): deffered which must be fired on complete download
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	206 @param resp(treq.response.IResponse): treq response
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	207 """
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	208 msg = f"HTTP error ({resp.code}): {resp.phrase.decode()}"
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	209 file_obj.close(error=msg)
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	210 download_d.errback(exceptions.NetworkError(msg))
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	211
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	212 async def downloadHTTP(self, client, uri_parsed, dest_path, options):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	213 url = uri_parsed.geturl()
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	214
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	215 head_data = await treq.head(url)
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	216 try:
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	217 content_length = int(head_data.headers.getRawHeaders('content-length')[0])
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	218 except (KeyError, TypeError, IndexError):
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	219 content_length = None
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	220 log.debug(f"No content lenght found at {url}")
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	221 file_obj = stream.SatFile(
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	222 self.host,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	223 client,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	224 dest_path,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	225 mode="wb",
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	226 size = content_length,
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	227 )
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	228
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	229 progress_id = file_obj.uid
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	230
d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	231 resp = await treq.get(url, unbuffered=True)
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	232 if resp.code == 200:
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	233 d = treq.collect(resp, file_obj.write)
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	234 d.addBoth(lambda _: file_obj.close())
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	235 else:
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	236 d = defer.Deferred()
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3136 diff changeset	237 self.errbackDownload(file_obj, d, resp)
3088 d1464548055a plugin file download: meta plugin to handle file download: Goffi <goffi@goffi.org> parents: diff changeset	238 return progress_id, d

Mercurial > libervia-backend

annotate sat/plugins/plugin_misc_download.py @ 3202:2e892f9f54f6