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annotate libervia/backend/test/test_plugin_misc_text_syntaxes.py @ 4074:26b7ed2817da

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refactoring: rename `sat_frontends` to `libervia.frontends`
author Goffi <goffi@goffi.org>
date Fri, 02 Jun 2023 14:12:38 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2021 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 """ Plugin text syntaxes tests """
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21
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22 from libervia.backend.test import helpers
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23 from libervia.backend.plugins import plugin_misc_text_syntaxes
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24 from twisted.trial.unittest import SkipTest
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25 import re
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26 import importlib
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29 class SanitisationTest(helpers.SatTestCase):
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30
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31 EVIL_HTML1 = """
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32 <html>
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33 <head>
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34 <script type="text/javascript" src="evil-site"></script>
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35 <link rel="alternate" type="text/rss" src="evil-rss">
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36 <style>
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37 body {background-image: url(javascript:do_evil)};
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38 div {color: expression(evil)};
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39 </style>
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40 </head>
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41 <body onload="evil_function()">
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42 <!-- I am interpreted for EVIL! -->
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43 <a href="javascript:evil_function()">a link</a>
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44 <a href="#" onclick="evil_function()">another link</a>
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45 <p onclick="evil_function()">a paragraph</p>
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46 <div style="display: none">secret EVIL!</div>
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47 <object> of EVIL! </object>
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48 <iframe src="evil-site"></iframe>
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49 <form action="evil-site">
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50 Password: <input type="password" name="password">
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51 </form>
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52 <blink>annoying EVIL!</blink>
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53 <a href="evil-site">spam spam SPAM!</a>
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54 <image src="evil!">
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55 </body>
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56 </html>""" # example from lxml: /usr/share/doc/python-lxml-doc/html/lxmlhtml.html#cleaning-up-html
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58 EVIL_HTML2 = """<p style='display: None; test: blah; background: url(: alert()); color: blue;'>test <strong>retest</strong><br><span style="background-color: (alert('bouh')); titi; color: #cf2828; font-size: 3px; direction: !important; color: red; color: red !important; font-size: 100px !important; font-size: 100px ! important; font-size: 100%; font-size: 100ox; font-size: 100px; font-size: 100;;;; font-size: 100 %; color: 100 px 1.7em; color: rgba(0, 0, 0, 0.1); color: rgb(35,79,255); background-color: no-repeat; background-color: :alert(1); color: (alert('XSS')); color: (window.location='http://example.org/'); color: url(:window.location='http://example.org/'); "> toto </span></p>"""
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60 def setUp(self):
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61 self.host = helpers.FakeSAT()
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62 importlib.reload(plugin_misc_text_syntaxes) # reload the plugin to avoid conflict error
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63 self.text_syntaxes = plugin_misc_text_syntaxes.TextSyntaxes(self.host)
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64
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65 def test_xhtml_sanitise(self):
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66 expected = """<div>
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67 <style>/* deleted */</style>
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68 <body>
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69 <a href="">a link</a>
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70 <a href="#">another link</a>
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71 <p>a paragraph</p>
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72 <div style="">secret EVIL!</div>
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73 of EVIL!
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74 Password:
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75 annoying EVIL!
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76 <a href="evil-site">spam spam SPAM!</a>
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77 <img src="evil!">
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78 </img></body>
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79 </div>"""
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80
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81 d = self.text_syntaxes.clean_xhtml(self.EVIL_HTML1)
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82 d.addCallback(self.assert_equal_xml, expected, ignore_blank=True)
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83 return d
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84
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85 def test_styles_sanitise(self):
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86 expected = """<p style="color: blue">test <strong>retest</strong><br/><span style="color: #cf2828; font-size: 3px; color: red; color: red !important; font-size: 100px !important; font-size: 100%; font-size: 100px; font-size: 100; font-size: 100 %; color: rgba(0, 0, 0, 0.1); color: rgb(35,79,255); background-color: no-repeat"> toto </span></p>"""
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88 d = self.text_syntaxes.clean_xhtml(self.EVIL_HTML2)
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89 d.addCallback(self.assert_equal_xml, expected)
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90 return d
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91
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92 def test_html2text(self):
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93 """Check that html2text is not inserting \n in the middle of that link.
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94 By default lines are truncated after the 79th characters."""
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95 source = '<img src="http://sat.goffi.org/static/images/screenshots/libervia/libervia_discussions.png" alt="sat"/>'
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96 expected = "![sat](http://sat.goffi.org/static/images/screenshots/libervia/libervia_discussions.png)"
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97 try:
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98 d = self.text_syntaxes.convert(
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99 source,
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100 self.text_syntaxes.SYNTAX_XHTML,
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101 self.text_syntaxes.SYNTAX_MARKDOWN,
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102 )
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103 except plugin_misc_text_syntaxes.UnknownSyntax:
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104 raise SkipTest("Markdown syntax is not available.")
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105 d.addCallback(self.assertEqual, expected)
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106 return d
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107
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108 def test_remove_xhtml_markups(self):
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109 expected = """ a link another link a paragraph secret EVIL! of EVIL! Password: annoying EVIL! spam spam SPAM! """
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110 result = self.text_syntaxes._remove_markups(self.EVIL_HTML1)
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111 self.assertEqual(re.sub(r"\s+", " ", result).rstrip(), expected.rstrip())
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112
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113 expected = """test retest toto"""
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114 result = self.text_syntaxes._remove_markups(self.EVIL_HTML2)
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115 self.assertEqual(re.sub(r"\s+", " ", result).rstrip(), expected.rstrip())