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annotate src/plugins/plugin_xep_0300.py @ 1596:b7ee113183fc

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jp: better profile commands: - new "profile/default" command - info doesn't show password anymore by default, need to be explicitly requested - info and modify don't need to connect anymore - modify can now set default profile. As use_profile is set, at least a profile session need to be started when it would not be mandatory technicaly (if just setting the profile as default is needed). But this option should not be used often, and it's not a big side effect, so I don't feel the need to create a new dedicated command, or to do complicated checks to avoid the session start.
author Goffi <goffi@goffi.org>
date Sat, 14 Nov 2015 19:18:10 +0100
parents bb451fd1cea3
children 0de5f210fe56
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rev   line source
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for Hash functions (XEP-0300)
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from twisted.words.xish import domish
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24 import hashlib
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25
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26
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27 NS_HASHES = "urn:xmpp:hashes:1"
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28
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29 PLUGIN_INFO = {
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30 "name": "Cryptographic Hash Functions",
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31 "import_name": "XEP-0300",
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32 "type": "XEP",
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33 "protocols": ["XEP-0300"],
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34 "main": "XEP_0300",
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35 "handler": "no",
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36 "description": _("""Management of cryptographic hashes""")
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37 }
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38
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39
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40 class XEP_0300(object):
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41 ALGOS = {u'md5': hashlib.md5,
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42 u'sha-1': hashlib.sha1,
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43 u'sha-256': hashlib.sha256,
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44 u'sha-512': hashlib.sha512,
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45 }
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46
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47 def __init__(self, host):
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48 log.info(_("plugin Hashes initialization"))
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49
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50 def buidHash(self, file_obj=None, algo='sha-256'):
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51 """Compute hash and build hash element
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52
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53 @param file_obj(file, None): file to use to calculate the hash
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54 if file_obj is None, en empty hash element will be returned (useful e.g. in XEP-0234)
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55 @param algo(unicode): algorithme to use, must be a key of XEP_0300.ALGOS
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56 @return (domish.Element): computed hash
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57 """
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58 hasher = self.ALGOS[algo]
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59 hash_elt = domish.Element((NS_HASHES, 'hash'))
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60 hash_elt['algo']=algo
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61 # TODO: actually hash, use deferToThread
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62 return hash_elt
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63