polymer-resin intercepts polymer property assignments
before they reach XSS-vulnerable sinks like `href="..."`
and text nodes in `<script>` elements.
This follows the instructions in WORKSPACE for adding a new bower
dependency with kaspern's tweak to use the dependency in a rule so
that it's found. //lib/js/bower_components.bzl has already been
rolled-back per those instructions.
The license is the polymer license as can be seen at
https://github.com/Polymer/polymer-resin/blob/master/LICENSE though
I'm not sure that //tools/js/bower2bazel.py recognizes it as such.
Docs for the added component are available at
https://github.com/Polymer/polymer-resin/blob/master/README.mdhttps://github.com/Polymer/polymer-resin/blob/master/getting-started.md
With this change, when I introduce an XSS vulnerability as below,
polymer-resin intercepts and stops it.
Patch that introduces a strawman vulnerability.
--- a/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header.js
+++ b/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header.js
@@ -55,6 +55,10 @@
url: '/q/status:abandoned',
name: 'Abandoned',
},
+ {
+ url: location.hash.replace(/^#/, '') || 'http://example.com/#fragment_echoed_here',
+ name: 'XSS Me',
+ },
],
}];
---
Address kaspern's and paladox's comments.
---
Undo version bumps for bower dependencies.
---
Change Soy index template to parallel app/index.html.
---
update polymer-resin to version 1.1.1-beta
----
Load polymer-resin into polygerrit-ui/**/*_test.html
After this, I ran the tests with
-l chrome
-l firefox
I ran a handful of tests with -p and observed that the
console shows "initResin" is called before test cases start
executing.
These changes were done programmaticly by running the script below
(approximately) thus:
```
gerrit/ $ cd polygerrit-ui/app
app/ $ find . -name \*test.html | xargs perl hack-tests.pl
```
```
use strict;
sub removeResin($) {
my $s = $_[0];
$s =~ s@<link rel="import" href="[^"]*/polymer-resin/[^"]*"[^>]*>\n?@@;
$s =~ s@<script src="[^"]*/polymer-resin/[^"]*"></script>\n?@@;
$s =~ s@<script>\s*security\.polymer_resin.*?</script>\n?@@s;
return $s;
}
for my $f (@ARGV) {
next if $f =~ m@/bower_components/|/node_modules/@;
system('git', 'checkout', $f);
print "$f\n";
my @lines = ();
open(IN, "<$f") or die "$f: $!";
my $maxLineOfMatch = 0;
while (<IN>) {
push(@lines, $_);
# Put a marker after core loading directives.
$maxLineOfMatch = scalar(@lines)
if m@/webcomponentsjs/|/polymer[.]html\b|/browser[.]js@;
}
close(IN) or die "$f: $!";
die "$f missing loading directives" unless $maxLineOfMatch;
# Given ./a/b/c/my_test.html, $pathToRoot is "../../.."
# assuming no non-leading . or .. components in the path from find.
my $pathToRoot = $f;
$pathToRoot =~ s@^\.\/@@;
$pathToRoot =~ s@^(.*?/)?app/@@;
$pathToRoot =~ s@\/[^\/]*$@@;
$pathToRoot =~ s@[^/]+@..@g;
my $nLines = scalar(@lines);
open(OUT, ">$f") or die "$f: $!";
# Output the lines up to the last polymer-resin dependency
# loaded explicitly by this test.
my $before = join '', @lines[0..($maxLineOfMatch - 1)];
$before = removeResin($before);
print OUT "$before";
# Dump out the lines that load polymer-resin and configure it for
# polygerrit.
if (1) {
print OUT qq'<link rel="import" href="$pathToRoot/bower_components/polymer-resin/standalone/polymer-resin-debug.html"/>
<script>
security.polymer_resin.install({allowedIdentifierPrefixes: [\'\']});
</script>
';
}
# Emit any remaining lines.
my $after = join '', @lines[$maxLineOfMatch..$#lines];
$after = removeResin($after);
$after =~ s/^\n*//;
print OUT "$after";
close(OUT) or die "$f: $!";
}
```
---
update polymer-resin to version 1.2.1-beta
---
update Soy index template to new style polymer-resin initialization
----
fix lint warnings
----
Load test/common-test-setup.html into *_test.html
Instead of inserting instructions to load and initialize polymer-resin into
every test file, add a common-test-setup.html that does that and also fold
iron-test-helpers loading into it.
----
imported files do not need to load webcomponentsjs
Change-Id: I71221c36ed8a0fe7f8720c1064a2fcc9555bb8df
Some browsers crash when allowed to have extremely long options in a
dropdown. This change truncates the user-supplied field of patch set
descriptions to 500 chars to prevent these crashes.
Bug: Issue 5085
Change-Id: I1fa5df3badb4ceca90519dfcd89369376992c432
- Hide download link and file web links from patchsets.
- Add a full file path.
- Change next/prev buttons to be arrows on either side of full path
- Change subheader to flex/wrap so that the display mode wraps to the
next line instead of the second patch set item.
Bug: Issue 5114
Change-Id: Iefb8afe9d7e2417f8aa2070e52073708c052fa4f
Adds an editable label allowing the change owner to edit patchset
descriptions within the UI.
Also re-styles the dropdowns pertaining to patchsets for better UX.
Feature: Issue 4544
Change-Id: I15c0f8ab6a60c3a06482fe152539615d31eeae0f
This change adds the patch set description, if it exists, in every patch
set select in the change view and the diff view. Also includes
refactoring of an existing function into a behavior for use in other
files, and removes some unnecessary DOM nodes from the change-view.
http://imgur.com/a/rEhOF
Feature: Issue 4544
Change-Id: Id5f8d2d5750f3f7afc677e16c411327f53487b19
Previously, on a changelist or file view, if you change the patchset
to a lower number and then click the back button, dropdown value did not
change properly. The issue was related to how the selected option was
rendered in a dom-if. This change refactors the gr-select element to fit this
use case.
Bug: Issue 4800
Change-Id: I66ee5b7aba5421a01ca79f9e72a853a73c32e589
There is no change in functionality. Only moving things around.
+ Separate html from the js.
+ Place the unit test for a component within the same folder.
+ Organize the components in subfolders.
Change-Id: I51fdc510db75fc1b33f040ca63decbbdfd4d5513
