commit 006708e921a1a93cbc619c6993c30404857d7bcf
Author: Jorge Couchet <[email protected]>
Date: Thu Nov 22 13:08:36 2012 +0100
Checking if the proxy is running in a Tor Proxy and disabling itelf.
---
proxy/flashproxy.js | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/proxy/flashproxy.js b/proxy/flashproxy.js
index 2078b69..435b8ea 100644
--- a/proxy/flashproxy.js
+++ b/proxy/flashproxy.js
@@ -865,6 +865,23 @@ function repr(x) {
}
}
+/* The function is trying to detect that the proxy is running in a Tor
Browser. A Tor Browser has
+ an specific 'navigator.userAgent' string, it is also entirely disabling the
DOM storage and
+ not listing the supported MIME types.
+
+ https://trac.torproject.org/projects/tor/ticket/6293
+
+*/
+function is_likely_tor_browser() {
+
+ var isTB = false;
+
+ if ( (navigator.userAgent == "Mozilla/5.0 (Windows NT 6.1; rv:10.0)
Gecko/20100101 Firefox/10.0") && (sessionStorage === null) &&
(navigator.mimeTypes.length == 0) )
+ isTB = true;
+
+ return isTB;
+}
+
/* Are circumstances such that we should self-disable and not be a
proxy? We take a best-effort guess as to whether this device runs on
a battery or the data transfer might be expensive.
@@ -876,6 +893,13 @@ function repr(x) {
function flashproxy_should_disable() {
var ua;
+ /* If the proxy is running in a Tor Browser there is a possible security
problem:
+ It is reported at:
https://trac.torproject.org/projects/tor/ticket/6293 */
+ if (is_likely_tor_browser()) {
+ puts("Disable because is running in a Tor Browser.");
+ return true;
+ }
+
ua = window.navigator.userAgent;
if (ua !== null) {
var UA_LIST = [
_______________________________________________
tor-commits mailing list
[email protected]
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-commits
