Elgg 1.0, meet kses. Kses, Elgg 1.0.

git-svn-id: https://code.elgg.org/elgg/trunk@1344 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 168 insertions, 0 deletions

diff --git a/vendors/kses/ChangeLog b/vendors/kses/ChangeLog
new file mode 100644
index 000000000..7102396ce
--- /dev/null
+++ b/vendors/kses/ChangeLog
@@ -0,0 +1,168 @@
+kses ChangeLog
+==============
+
+* 0.2.2 and 0.2.2-rc1
+
+0.2.2 was released on the 7th of February 2005. We also had a release
+candidate, 0.2.2-rc1, that was released on the 30th of January 2005.
+
+I (Ulf) am sorry for this long delay, but I lost interest in kses for a
+while and worked on auditing C/C++ code for buffer overflows and format
+string bugs in the Debian Security Audit Project instead
+( http://www.debian.org/security/audit/ ).
+
+This version has the following changes:
+
+- Richard contributed an additional object-oriented kses version for
+  PHP 5, which takes advantage of that PHP version's improved object
+  orientation. You can find it in the oop/ directory.
+
+- Richard added RemoveProtocol(), RemoveProtocols() and SetProtocols()
+  methods to both object-oriented kses versions. This closes SourceForge
+  bug #892477.
+
+- Richard also did other smaller changes to the object-oriented kses
+  versions. See oop/oop.kses.changelog.txt for the gory details.
+
+- The code that checks whether used elements and attributes are allowed
+  now uses isset() to avoid notices under certain configurations. This
+  hopefully closes SourceForge bug #918493.
+
+- The check for the Opera extra whitespace character #173 was moved so
+  it only affects attribute values and nothing else. This is helpful for
+  Asian kses users, who use that character in writing. (This is just a
+  temporary solution. A better one will show up in the next version, when
+  the parser is rewritten.) This closes SourceForge bug #834645, kind of.
+
+- Now the program will not even look at attributes and closing XHTML
+  slashes for closing HTML elements. This will make kses execute faster
+  and it won't accept atrocities like </br /> anymore.
+
+- Moved references in examples/test.php from function calls to the function
+  definition, making it better PHP.
+
+- The output of examples/test.php and examples/filter.php now conform fully
+  to W3C's HTML specification.
+
+- From now on, kses releases will be distributed both as .tar.gz and .zip
+  archives to please our Wintendo users. This closes SourceForge feature
+  request #900380.
+
+- Changed to new copyright year and paper mail address.
+
+
+* 0.2.1
+
+0.2.1 was released on the 29th of September 2003.
+It has the following changes:
+
+
+- There is now an additional version of kses, using the object-oriented
+  paradigm. Thanks a lot to Richard R. Vasquez, Jr., who created it! Anyone
+  who wants to make functional programming, logical programming or spaghetti
+  programming versions of kses as well (or any other programming paradigm that
+  you like), go ahead! All the people who like old procedural programming for
+  web applications shouldn't despair, though, as both versions will be
+  maintained with each release.
+
+- kses now has some new attribute value checks: minlen, minval and valueless.
+  See docs/attribute-value-checks for an explanation.
+
+- For some reason, the Opera developers decided to make chr(173) a whitespace
+  character in URL protocols, both when it occurs raw and in an entity. kses
+  now handles this.
+
+- The URL protocol whitelisting system now decodes entities before removing
+  NULLs and whitespaces.
+
+
+* 0.2.0
+
+0.2.0 was released on the 25th of July 2003.
+It has the following changes:
+
+
+- kses now supports checking of attribute values, and not just element names
+  and attribute names. The attribute value checks that exist so far are
+  'maxlen' (checks how long attribute values are, to avoid Buffer Overflows)
+  and 'maxval' (checks how big an integer value is, to avoid Denial of Service
+  attacks).
+
+  Buffer Overflows could both be a problem for WWW clients and different
+  servers on the Internet that an HTML document links to. One example is
+  <frame src="ftp://ftp.v1ct1m.com/AAAAAA..thousands_of_A's...">.
+
+  Denial of Service attacks can take the form of too big sizes of iframes or
+  other things. One example is <iframe src="http://some.web.server/"
+  width="20000" height="2000">, which makes some client machines completely
+  overloaded.
+
+- kses' old feature of removing "javascript:" from attribute values has been
+  improved. It now has a whole system for white listing of URL protocols, so
+  you can specify that it's acceptable with http:, https:, ftp: and gopher:,
+  but no other protocols in attribute values. The system tries pretty hard to
+  do the right thing with whitespace, upper/lower case, HTML entities
+  ("jav&#97;script:") and repeated entries ("javascript:javascript:alert(57)").
+
+- kses now supports both HTML and XHTML code, by allowing " /" at the end of
+  tags.
+
+- kses now removes Netscape 4's JavaScript entities, having the form
+  "&{alert(57)};". They don't even seem to work on all versions of Netscape 4,
+  but for completeness' sake it seemed like a good feature to add.
+
+- A bug with NULLs in javascript: URLs was fixed.
+  (Reported by Simon Cornelius P. Umacob - thanks!)
+
+- As a nice side effect of the white listing of URL protocols, kses now also
+  normalizes all HTML entities in documents. It will change HTML code with bad
+  entities to the right form, for example "AT&T" will be converted to
+  "AT&amp;T" and "<a href='lyrics.php?band=ladytron&lyrics=playgirl'>" will be
+  converted to "<a href='lyrics.php?band=ladytron&amp;lyrics=playgirl'>".
+  "&#000058;" will be converted to "&#58;", "&#XYZZY;" will be converted to
+  "&amp;#XYZZY;", "&auml!;" will be converted to "&amp;auml!;" and so on.
+
+  As shown above, it will process HTML entities that it doesn't understand.
+  It will also deal with too big numbers in numeric HTML entities, which is
+  helpful as many browsers seem to wrap them around at 2 ** 32, so the
+  characters 58, 58 + (2 ** 32), 58 + (2 ** 64) etcetera are all colons to the
+  web browser.
+
+- You can now use upper case letters in your $allowed_html array, in element
+  names, attribute names and attribute value check names. Version 0.1.0
+  required everything in that array to be in lower case, but that's not
+  necessary any more. You can also use upper case letters in
+  $allowed_protocols.
+
+- The "Really malformed thing" bug from the TODO file was fixed.
+  It used to convert this string:
+  x > 5 <a href="blah">
+  to:
+  x &gt; 5 &lt;a href=&quot;blah&quot;&gt;
+  and now it converts it to:
+  x &gt; 5 <a href="blah">
+
+- The "Weird malformed thing" bug from the TODO file was fixed.
+  It used to convert this string:
+  <a href="5 href=6>
+  to:
+  <a href="6">
+  because of the way kses restarts after a parse error in kses_hair(). Now it
+  converts it to:
+  <a>
+
+- A problem with slashes in HTML tags was fixed.
+
+- examples/filter.php used to use $SCRIPT_NAME, which doesn't work on
+  Windows.
+  (Reported by Simon Cornelius P. Umacob - thanks!)
+
+- kses now allows dashes in attribute names, for things like
+  <meta http-equiv=..>.
+
+
+* 0.1.0, first public version
+
+0.1.0 was released on the 9th of June 2003.
+It was announced on three security related mailing lists on Friday the 13th
+of June (nothing bad happened to it though).