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Update the noscript upload instructions on the receive mode upload page, and add separate page for instructions to disable NoScript XSS setting

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This commit is contained in:
Micah Lee 2019-02-14 09:31:39 -08:00
parent 1c16b092a3
commit dd3f2d60b6
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GPG Key ID: 403C2657CD994F73
4 changed files with 59 additions and 8 deletions
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8
onionshare/web/web.py
View File

@ -132,6 +132,14 @@ class Web(object):
self.force_shutdown()
return ""
@self.app.route("/noscript-xss-instructions")
def noscript_xss_instructions():
"""
Display instructions for disabling Tor Browser's NoScript XSS setting
"""
r = make_response(render_template('receive_noscript_xss.html'))
return self.add_security_headers(r)
def error404(self):
self.add_request(Web.REQUEST_OTHER, request.path)
if request.path != '/favicon.ico':

7
share/static/css/style.css
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@ -199,10 +199,15 @@ div#noscript {
color: #e55454;
padding: 1em;
line-height: 150%;
max-width: 700px;
max-width: 900px;
margin: 100px 2em 0 2em;
}
div#noscript a, div#noscript a:visited {
color: #e27f7f;
}
.disable-noscript-xss-wrapper {
max-width: 900px;
margin: 0 auto;
}

17
share/templates/receive.html
View File

@ -25,7 +25,7 @@
{% if messages %}
<ul class=flashes>
{% for category, message in messages %}
<li class="{{ category }}">{{ message }}</li>
<li class="{{ category }}">{{ message }}</li>
{% endfor %}
</ul>
{% endif %}
@ -34,15 +34,18 @@
</form>
<!-- We are not using a <noscript> tag because it only works when the security slider
is set to Safest, not Safer. -->
is set to Safest, not Safer.
For more information about the upload issue:
https://github.com/micahflee/onionshare/issues/899
-->
<div id="noscript">
<p>
<strong>Warning:</strong> Due to a bug in Tor Browser and Firefox, if you
want to upload a file bigger than 50mb, you must set the Tor Browser
<strong>Warning:</strong> Due to a bug in Tor Browser and Firefox, uploads
sometimes never finish. To upload reliably, either set your Tor Browser
<a rel="noreferrer" target="_blank" href="https://tb-manual.torproject.org/en-US/security-slider/">security slider</a>
to Standard. Otherwise your upload will never finish.</p>
<p>If you plan on only uploading small files, your current settings are fine.</p>
to Standard or
<a target="_blank" href="/noscript-xss-instructions">turn off your Tor Browser's NoScript XSS setting</a>.</p>
</div>
</div>
</div>

35
share/templates/receive_noscript_xss.html Normal file
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@ -0,0 +1,35 @@
<!DOCTYPE html>
<html>
<head>
<title>OnionShare</title>
<link href="/static/img/favicon.ico" rel="icon" type="image/x-icon" />
<link href="/static/css/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<header class="clearfix">
<img class="logo" src="/static/img/logo.png" title="OnionShare">
<h1>OnionShare</h1>
</header>
<div class="disable-noscript-xss-wrapper">
<h3>Disable your Tor Browser's NoScript XSS setting</h3>
<p>If your security slider is set to Safest, JavaScript is disabled so XSS vulnerabilities won't affect you,
which makes it safe to disable NoScript's XSS protections.</p>
<p>Here is how to disable this setting:</p>
<ol>
<li>Click the menu icon in the top-right of Tor Browser and open "Add-ons"</li>
<li>Next to the NoScript add-on, click the "Preferences" button</li>
<li>Switch to the "Advanced" tab</li>
<li>Uncheck "Sanitize cross-site suspicious requests"</li>
</ol>
<p>If you'd like to learn technical details about this issue, check
<a rel="noreferrer" href="https://github.com/micahflee/onionshare/issues/899">this issue</a>
on GitHub.</p>
</div>
</body>
</html>