libervia-backend: sat/plugins/plugin_sec

annotate sat/plugins/plugin_sec_aesgcm.py @ 3195:29d72336a40d

changelog: update

author	Goffi <goffi@goffi.org>
date	Fri, 28 Feb 2020 18:10:58 +0100
parents	84b0c8b4dee0
children	adf1aeaa0d37

rev	line source
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	1 #!/usr/bin/env python3
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	2
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	3 # SàT plugin for handling AES-GCM file encryption
3136 9d0df638c8b4 dates update Goffi <goffi@goffi.org> parents: 3090 diff changeset	4 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	5
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	6 # This program is free software: you can redistribute it and/or modify
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	7 # it under the terms of the GNU Affero General Public License as published by
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	8 # the Free Software Foundation, either version 3 of the License, or
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	9 # (at your option) any later version.
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	10
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	11 # This program is distributed in the hope that it will be useful,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	14 # GNU Affero General Public License for more details.
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	15
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	16 # You should have received a copy of the GNU Affero General Public License
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	18
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	19 import re
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	20 from textwrap import dedent
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	21 from functools import partial
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	22 from urllib import parse
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	23 import mimetypes
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	24 import secrets
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	25 from cryptography.hazmat.primitives import ciphers
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	26 from cryptography.hazmat.primitives.ciphers import modes
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	27 from cryptography.hazmat import backends
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	28 from cryptography.exceptions import AlreadyFinalized
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	29 import treq
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	30 from twisted.internet import defer
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	31 from sat.core.i18n import _
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	32 from sat.core.constants import Const as C
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	33 from sat.core import exceptions
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	34 from sat.tools import stream
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	35 from sat.core.log import getLogger
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	36
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	37 log = getLogger(__name__)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	38
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	39 PLUGIN_INFO = {
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	40 C.PI_NAME: "AES-GCM",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	41 C.PI_IMPORT_NAME: "AES-GCM",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	42 C.PI_TYPE: "SEC",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	43 C.PI_PROTOCOLS: ["OMEMO Media sharing"],
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	44 C.PI_DEPENDENCIES: ["XEP-0363", "XEP-0384", "DOWNLOAD"],
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	45 C.PI_MAIN: "AESGCM",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	46 C.PI_HANDLER: "no",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	47 C.PI_DESCRIPTION: dedent(_("""\
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	48 Implementation of AES-GCM scheme, a way to encrypt files (not official XMPP standard).
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	49 See https://xmpp.org/extensions/inbox/omemo-media-sharing.html for details
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	50 """)),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	51 }
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	52
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	53 AESGCM_RE = re.compile(
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	54 r'aesgcm:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9'
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	55 r'()@:%_\+.~#?&\/\/=]*)')
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	56
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	57
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	58 class AESGCM(object):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	59
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	60 def __init__(self, host):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	61 self.host = host
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	62 log.info(_("AESGCM plugin initialization"))
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	63 host.plugins["DOWNLOAD"].registerScheme(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	64 "aesgcm", self.download
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	65 )
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	66 host.trigger.add("XEP-0363_upload_size", self._uploadSizeTrigger)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	67 host.trigger.add("XEP-0363_upload", self._uploadTrigger)
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	68 host.trigger.add("messageReceived", self._messageReceivedTrigger)
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	69
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	70 async def download(self, client, uri_parsed, dest_path, options):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	71 fragment = bytes.fromhex(uri_parsed.fragment)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	72
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	73 # legacy method use 16 bits IV, but OMEMO media sharing published spec indicates
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	74 # which is 12 bits IV (AES-GCM spec recommandation), so we have to determine
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	75 # which size has been used.
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	76 if len(fragment) == 48:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	77 iv_size = 16
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	78 elif len(fragment) == 44:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	79 iv_size = 12
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	80 else:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	81 raise ValueError(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	82 f"Invalid URL fragment, can't decrypt file at {uri_parsed.get_url()}")
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	83
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	84 iv, key = fragment[:iv_size], fragment[iv_size:]
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	85
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	86 decryptor = ciphers.Cipher(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	87 ciphers.algorithms.AES(key),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	88 modes.GCM(iv),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	89 backend=backends.default_backend(),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	90 ).decryptor()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	91
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	92 download_url = parse.urlunparse(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	93 ('https', uri_parsed.netloc, uri_parsed.path, '', '', ''))
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	94
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	95 head_data = await treq.head(download_url)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	96 content_length = int(head_data.headers.getRawHeaders('content-length')[0])
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	97 # the 128 bits tag is put at the end
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	98 file_size = content_length - 16
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	99
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	100 file_obj = stream.SatFile(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	101 self.host,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	102 client,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	103 dest_path,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	104 mode="wb",
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	105 size = file_size,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	106 )
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	107
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	108 progress_id = file_obj.uid
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	109
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	110 resp = await treq.get(download_url, unbuffered=True)
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	111 if resp.code == 200:
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	112 d = treq.collect(resp, partial(
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	113 self.onDataDownload,
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	114 client=client,
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	115 file_obj=file_obj,
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	116 decryptor=decryptor))
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	117 else:
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	118 d = defer.Deferred()
84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	119 self.host.plugins["DOWNLOAD"].errbackDownload(file_obj, d, resp)
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	120 return progress_id, d
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	121
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	122 def onDataDownload(self, data, client, file_obj, decryptor):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	123 if file_obj.tell() + len(data) > file_obj.size:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	124 # we're reaching end of file with this bunch of data
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	125 # we may still have a last bunch if the tag is incomplete
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	126 bytes_left = file_obj.size - file_obj.tell()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	127 if bytes_left > 0:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	128 decrypted = decryptor.update(data[:bytes_left])
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	129 file_obj.write(decrypted)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	130 tag = data[bytes_left:]
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	131 else:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	132 tag = data
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	133 if len(tag) < 16:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	134 # the tag is incomplete, either we'll get the rest in next data bunch
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	135 # or we have already the other part from last bunch of data
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	136 try:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	137 # we store partial tag in decryptor._sat_tag
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	138 tag = decryptor._sat_tag + tag
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	139 except AttributeError:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	140 # no other part, we'll get the rest at next bunch
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	141 decryptor.sat_tag = tag
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	142 else:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	143 # we have the complete tag, it must be 128 bits
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	144 if len(tag) != 16:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	145 raise ValueError(f"Invalid tag: {tag}")
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	146 remain = decryptor.finalize_with_tag(tag)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	147 file_obj.write(remain)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	148 file_obj.close()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	149 else:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	150 decrypted = decryptor.update(data)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	151 file_obj.write(decrypted)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	152
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	153 def _uploadSizeTrigger(self, client, options, file_path, size, size_adjust):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	154 if options.get('encryption') != C.ENC_AES_GCM:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	155 return True
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	156 # the tag is appended to the file
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	157 size_adjust.append(16)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	158 return True
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	159
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	160 def _encrypt(self, data, encryptor):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	161 if data:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	162 return encryptor.update(data)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	163 else:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	164 try:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	165 # end of file is reached, me must finalize
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	166 ret = encryptor.finalize()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	167 tag = encryptor.tag
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	168 return ret + tag
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	169 except AlreadyFinalized:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	170 # as we have already finalized, we can now send EOF
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	171 return b''
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	172
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	173 def _uploadTrigger(self, client, options, sat_file, file_producer, slot):
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	174 if options.get('encryption') != C.ENC_AES_GCM:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	175 return True
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	176 log.debug("encrypting file with AES-GCM")
3178 98b321234068 plugin aesgcm: use 12 bytes Initialisation Vector: Goffi <goffi@goffi.org> parents: 3174 diff changeset	177 iv = secrets.token_bytes(12)
3090 4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	178 key = secrets.token_bytes(32)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	179 fragment = f'{iv.hex()}{key.hex()}'
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	180 ori_url = parse.urlparse(slot.get)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	181 # we change the get URL with the one with aesgcm scheme and containing the
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	182 # encoded key + iv
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	183 slot.get = parse.urlunparse(['aesgcm', *ori_url[1:5], fragment])
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	184
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	185 # encrypted data size will be bigger than original file size
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	186 # so we need to check with final data length to avoid a warning on close()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	187 sat_file.check_size_with_read = True
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	188
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	189 # file_producer get length directly from file, and this cause trouble has
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	190 # we have to change the size because of encryption. So we adapt it here,
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	191 # else the producer would stop reading prematurely
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	192 file_producer.length = sat_file.size
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	193
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	194 encryptor = ciphers.Cipher(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	195 ciphers.algorithms.AES(key),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	196 modes.GCM(iv),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	197 backend=backends.default_backend(),
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	198 ).encryptor()
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	199
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	200 if sat_file.data_cb is not None:
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	201 raise exceptions.InternalError(
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	202 f"data_cb was expected to be None, it is set to {sat_file.data_cb}")
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	203
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	204 # with data_cb we encrypt the file on the fly
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	205 sat_file.data_cb = partial(self._encrypt, encryptor=encryptor)
4f8bdf50593f plugin sec aesgcm: new plugin handling `aesgcm:` scheme for e2e encrypted media sharing: Goffi <goffi@goffi.org> parents: diff changeset	206 return True
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	207
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	208
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	209 def _popAESGCMLinks(self, match, links):
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	210 link = match.group()
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	211 if link not in links:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	212 links.append(link)
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	213 return ""
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	214
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	215 def _checkAESGCMAttachments(self, client, data):
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	216 if not data.get('message'):
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	217 return data
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	218 links = []
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	219
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	220 for lang, message in list(data['message'].items()):
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	221 message = AESGCM_RE.sub(
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	222 partial(self._popAESGCMLinks, links=links),
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	223 message)
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	224 if links:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	225 message = message.strip()
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	226 if not message:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	227 del data['message'][lang]
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	228 else:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	229 data['message'][lang] = message
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	230 mess_encrypted = client.encryption.isEncrypted(data)
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	231 attachments = data['extra'].setdefault(C.MESS_KEY_ATTACHMENTS, [])
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	232 for link in links:
3186 84b0c8b4dee0 plugin download, aesgcm: fixed handling of HTTP errors Goffi <goffi@goffi.org> parents: 3178 diff changeset	233 path = parse.urlparse(link).path
3174 c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	234 attachment = {
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	235 "url": link,
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	236 }
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	237 media_type = mimetypes.guess_type(path, strict=False)[0]
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	238 if media_type is not None:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	239 attachment[C.MESS_KEY_MEDIA_TYPE] = media_type
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	240
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	241 if mess_encrypted:
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	242 # we don't add the encrypted flag if the message itself is not
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	243 # encrypted, because the decryption key is part of the link,
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	244 # so sending it over unencrypted channel is like having no
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	245 # encryption at all.
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	246 attachment['encrypted'] = True
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	247 attachments.append(attachment)
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	248
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	249 return data
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	250
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	251 def _messageReceivedTrigger(self, client, message_elt, post_treat):
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	252 # we use a post_treat callback instead of "message_parse" trigger because we need
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	253 # to check if the "encrypted" flag is set to decide if we add the same flag to the
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	254 # attachment
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	255 post_treat.addCallback(partial(self._checkAESGCMAttachments, client))
c90f27ce52b0 plugin aesgcm: look for "aesgcm" links in body to use them as attachments Goffi <goffi@goffi.org> parents: 3136 diff changeset	256 return True

Mercurial > libervia-backend

annotate sat/plugins/plugin_sec_aesgcm.py @ 3195:29d72336a40d