refactoring: renamed sat package to libervia.backend

sat/plugins/plugin_xep_0106.py

@@ -1,111 +0,0 @@
-#!/usr/bin/env python3
-
-
-# SAT plugin for Explicit Message Encryption
-# Copyright (C) 2009-2021 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 _
-from sat.core.constants import Const as C
-from sat.core.log import getLogger
-from twisted.words.protocols.jabber import xmlstream
-from zope.interface import implementer
-from wokkel import disco
-
-log = getLogger(__name__)
-
-PLUGIN_INFO = {
-    C.PI_NAME: "JID Escaping",
-    C.PI_IMPORT_NAME: "XEP-0106",
-    C.PI_TYPE: "XEP",
-    C.PI_MODES: C.PLUG_MODE_BOTH,
-    C.PI_PROTOCOLS: ["XEP-0106"],
-    C.PI_DEPENDENCIES: [],
-    C.PI_MAIN: "XEP_0106",
-    C.PI_HANDLER: "yes",
-    C.PI_DESCRIPTION: _("""(Un)escape JID to use disallowed chars in local parts"""),
-}
-
-NS_JID_ESCAPING = r"jid\20escaping"
-ESCAPE_MAP = {
-    ' ': r'\20',
-    '"': r'\22',
-    '&': r'\26',
-    "'": r'\27',
-    '/': r'\2f',
-    ':': r'\3a',
-    '<': r'\3c',
-    '>': r'\3e',
-    '@': r'\40',
-    '\\': r'\5c',
-}
-
-
-class XEP_0106(object):
-
-    def __init__(self, host):
-        self.reverse_map = {v:k for k,v in ESCAPE_MAP.items()}
-
-    def get_handler(self, client):
-        return XEP_0106_handler()
-
-    def escape(self, text):
-        """Escape text
-
-        @param text(unicode): text to escape
-        @return (unicode): escaped text
-        @raise ValueError: text can't be escaped
-        """
-        if not text or text[0] == ' ' or text[-1] == ' ':
-            raise ValueError("text must not be empty, or start or end with a whitespace")
-        escaped = []
-        for c in text:
-            if c in ESCAPE_MAP:
-                escaped.append(ESCAPE_MAP[c])
-            else:
-                escaped.append(c)
-        return ''.join(escaped)
-
-    def unescape(self, escaped):
-        """Unescape text
-
-        @param escaped(unicode): text to unescape
-        @return (unicode): unescaped text
-        @raise ValueError: text can't be unescaped
-        """
-        if not escaped or escaped.startswith(r'\27') or escaped.endswith(r'\27'):
-            raise ValueError("escaped value must not be empty, or start or end with a "
-                             f"whitespace: rejected value is {escaped!r}")
-        unescaped = []
-        idx = 0
-        while idx < len(escaped):
-            char_seq = escaped[idx:idx+3]
-            if char_seq in self.reverse_map:
-                unescaped.append(self.reverse_map[char_seq])
-                idx += 3
-            else:
-                unescaped.append(escaped[idx])
-                idx += 1
-        return ''.join(unescaped)
-
-
-@implementer(disco.IDisco)
-class XEP_0106_handler(xmlstream.XMPPHandler):
-
-    def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
-        return [disco.DiscoFeature(NS_JID_ESCAPING)]
-
-    def getDiscoItems(self, requestor, target, nodeIdentifier=""):
-        return []