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599 Commits

Author SHA1 Message Date
Edward Z. Yang
8f401f769e Use a Zipper to process MakeWellFormed, removing quadratic behavior. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-10-13 13:21:02 -07:00
Edward Z. Yang
82bcc62058 Properly handle context variables that are NULL. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-10-13 13:21:02 -07:00
Edward Z. Yang
f17490f009 Implementation of a Zipper, for efficient splice. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-10-13 01:16:32 -07:00
Edward Z. Yang
a5fc37d8c3 Improve gitignore. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-10-13 00:18:11 -07:00
Edward Z. Yang
cf44f399f8 Properly use HMAC for secure munging. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-09-13 21:16:50 -07:00
Marcus Bointon
fac747bdbd PSR-2 reformatting PHPDoc corrections 
With minor corrections.

Signed-off-by: Marcus Bointon <marcus@synchromedia.co.uk>
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-08-17 22:27:26 -04:00
Edward Z. Yang
53c2907706 New directive %Core.AllowHostnameUnderscore 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-07-26 21:33:39 -07:00
Edward Z. Yang
75bd7abcc7 Make list nesting test more sensitive. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-06-06 13:08:13 -07:00
Edward Z. Yang
0680832d41 Use info_parent_def to get parent information, since it may not be present in info array. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-05-21 17:19:59 -07:00
Edward Z. Yang
6e37ecd1c8 Make URI parsing algorithm more strict. 
Thanks Michael Gusev <mgusev@sugarcrm.com> for contributing this patch.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-04-16 13:56:43 -07:00
Edward Z. Yang
631021733b Add %Core.DisableExcludes directive 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2013-02-17 15:47:38 -08:00
Edward Z. Yang
c0ad68108a Do checks against iconvAvailable because PHP 5.4 has botched iconv support. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-10-27 02:27:57 -07:00
Edward Z. Yang
72db575446 Fix bug with non-lower case color names in HTML. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-07-30 10:54:32 -04:00
Edward Z. Yang
f38fca32a9 Don't lower-case components of background. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-06-02 11:22:58 -04:00
Edward Z. Yang
6705140082 Fix in AttrTransform_Nofollow 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-05-14 23:07:27 -04:00
Edward Z. Yang
2189a9430f Support for safe external scripts via explicit whitelist. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-04-27 17:44:49 -04:00
Edward Z. Yang
7291f19347 Fix problem where stacked AttrTransforms clobber each other. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-03-16 23:12:16 -04:00
Edward Z. Yang
8c9d461a62 Bugfix: _blank not blank. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-02-18 11:28:01 -05:00
Edward Z. Yang
70028f83d6 Make all of the tests work on all PHP versions. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-01-18 18:57:13 -05:00
Edward Z. Yang
5c5e3fe79f Avoid doing stupidly clever reflection tricks that make old PHP versions sad. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-01-18 18:21:36 -05:00
Edward Z. Yang
1c7fedff5a Tighter CSS selector validation. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-01-17 15:36:26 -05:00
Edward Z. Yang
974fe3f25e Optional support for IDNAs with PEAR Net_IDNA2 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-01-06 05:28:00 -08:00
Edward Z. Yang
94468f3c24 Remove PEARSax3 lexer. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2012-01-03 20:40:17 +08:00
Edward Z. Yang
e0354fecd9 Make forms work for transitional doctypes. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-30 22:56:44 +08:00
Edward Z. Yang
d2de8d976a Add test for invalid SafeIframe usage. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 21:52:55 +08:00
Bradley M. Froehle
4164b2eb2b Implement Iframe module, and provide %HTML.SafeIframe and %URI.SafeIframeRegexp for untrusted usage. 
The purpose of this addition is twofold. In trusted mode, iframes are
now unconditionally allowed.

However, many online video providers (YouTube, Vimeo) and other web
applications (Google Maps, Google Calendar, etc) provide embed code in
iframe format, which is useful functionality in untrusted mode.
You can specify iframes as trusted elements with %HTML.SafeIframe;
however, you need to additionally specify a whitelist mechanism such as
%URI.SafeIframeRegexp to say what iframe embeds are OK (by default
everything is rejected).

Note: As iframes are invalid in strict doctypes, you will not be able to
use them there.

We also added an always_load parameter to URIFilters in order to support
the strange nature of the SafeIframe URIFilter (it always needs to be
loaded, due to the inability of accessing the %HTML.SafeIframe directive
to see if it's needed!)  We expect this URIFilter can expand in the future
to offer more complex validation mechanisms.

Signed-off-by: Bradley M. Froehle <brad.froehle@gmail.com>
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 21:50:53 +08:00
Edward Z. Yang
6b643ede02 Implement %HTML.AllowedComments and %HTML.AllowedCommentsRegexp 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 15:34:42 +08:00
Edward Z. Yang
e41af46a8b Fix broken table content model, easily seen in XHTML1.1 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 14:49:26 +08:00
Edward Z. Yang
3570c9985a Properly handle nested sublists by folding into previous list item. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 14:00:34 +08:00
Edward Z. Yang
8d572993b4 Implement %HTML.TargetBlank 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-26 08:36:00 +08:00
Edward Z. Yang
9b10515fa4 Core.EscapeNonASCIICharacters now always works, even if target is UTF-8. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-25 23:31:15 +08:00
Edward Z. Yang
d45e11cc6b Add one more test for SPL autoload defaults. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-25 02:58:51 -05:00
Edward Z. Yang
94c15d1f56 Fix iconv truncation bug. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-12-25 02:31:06 -05:00
Edward Z. Yang
820d6e9097 Do not duplicate nofollow attribute in transform. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-08-24 09:56:13 -04:00
Edward Z. Yang
bcfbb8338c URI.Munge munges https to http URIs. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-04-10 13:09:24 +01:00
Edward Z. Yang
0124605918 Fix CSS URL innerHTML/cssText escaping bug. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-27 21:24:32 +01:00
Edward Z. Yang
afb007d22f Protect against font family innerHTML/cssText attacks. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-27 20:35:43 +01:00
Edward Z. Yang
0dd9e4faf4 Fix Internet Explorer innerHTML bug. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-27 11:50:52 +01:00
Edward Z. Yang
94ed3b1231 Implement CSS.AllowedFonts. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-24 22:54:39 +00:00
Edward Z. Yang
6a6c0ed5d7 Don't autoclose if no parents support the tag. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-22 00:26:41 +00:00
Edward Z. Yang
e05b555448 Safety update for nested ul test. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-21 21:05:23 +00:00
Edward Z. Yang
ee9c70ab7f Fix E_NOTICE from indexing into empty string. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-03-17 17:33:11 +00:00
Edward Z. Yang
e76f4b45d0 Dramatically rewrite null host URI handling. 
Basically, browsers don't parse what should be valid URIs correctly, so
we have to go through some backbends to accomodate them.  Specifically,
for browseable URIs, the following URIs have unintended behavior:

    - ///example.com
    - http:/example.com
    - http:///example.com

Furthermore, if the path begins with //, modifying these URLs must
be done with care, as if you remove the host-name component, the
parse tree changes.

I've modified the engine to follow correct URI semantics as much
as possible while outputting browser compatible code, and invalidate
the URI in cases where we can't deal.  There has been a refactoring
of URIScheme so that this important check is always performed,
introducing a new member variable allow_empty_host which is true
on data, file, mailto and news schemes.

This also fixes bypass bugs on URI.Munge.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-01-25 18:56:46 +00:00
Edward Z. Yang
a32d5b52e1 Fix embedding flash on non-IE browsers and allow more wmode. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2011-01-22 12:28:57 +00:00
Petr Skoda
78c4e62245 Add new Cache.SerializerPermissions option. 2011-01-13 22:57:40 +00:00
Edward Z. Yang
f3d050c517 Fix two bugs with caching of customized raw definitions. 
The first bug is that we will repeatedly write out the result
of a customized raw definition to the filesystem, even when a cache
entry already exists.

The second bug is that caching these definitions doesn't actually
work (the cache entry is written but never used.)  A new API
for retrieving raw definitions permits the user to take advantage
of caching.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2010-12-30 23:51:53 +00:00
Edward Z. Yang
cfc4ee1faf Add initial implementation of CSS.Trusted. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2010-11-12 18:45:03 +00:00
Edward Z. Yang
598c5b60c9 Add sanity check against ze1_compatibility_mode. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2010-11-12 16:15:03 +00:00
Edward Z. Yang
c9e7ffc172 Fix incorrect PEARSax3 test assertion. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2010-11-12 16:06:34 +00:00
Edward Z. Yang
4754d407aa Fix removal of id with DirectLex by preserving armor. 
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
 2010-10-28 17:25:31 +01:00