diff options
Diffstat (limited to 'vendors')
| -rw-r--r-- | vendors/kses/AUTHORS | 26 | ||||
| -rw-r--r-- | vendors/kses/COPYING | 340 | ||||
| -rw-r--r-- | vendors/kses/ChangeLog | 168 | ||||
| -rw-r--r-- | vendors/kses/README | 206 | ||||
| -rw-r--r-- | vendors/kses/TODO | 40 | ||||
| -rw-r--r-- | vendors/kses/docs/attribute-value-checks | 68 | ||||
| -rw-r--r-- | vendors/kses/docs/hooks | 7 | ||||
| -rw-r--r-- | vendors/kses/docs/stripping-everything | 7 | ||||
| -rw-r--r-- | vendors/kses/docs/supported-formats | 6 | ||||
| -rw-r--r-- | vendors/kses/docs/whitelisted-url-protocols | 15 | ||||
| -rw-r--r-- | vendors/kses/examples/filter.php | 138 | ||||
| -rw-r--r-- | vendors/kses/examples/test.php | 224 | ||||
| -rw-r--r-- | vendors/kses/kses.php | 555 | ||||
| -rw-r--r-- | vendors/kses/oop/oop.kses.changelog.txt | 204 | ||||
| -rw-r--r-- | vendors/kses/oop/oop.simple.api.txt | 58 | ||||
| -rw-r--r-- | vendors/kses/oop/php4.class.kses.php | 1162 | ||||
| -rw-r--r-- | vendors/kses/oop/php5.class.kses.php | 1172 | ||||
| -rw-r--r-- | vendors/kses/oop/test.oop.kses.php | 507 |
18 files changed, 0 insertions, 4903 deletions
diff --git a/vendors/kses/AUTHORS b/vendors/kses/AUTHORS deleted file mode 100644 index 2e034090f..000000000 --- a/vendors/kses/AUTHORS +++ /dev/null @@ -1,26 +0,0 @@ -kses AUTHORS -============ - -* Ulf Harnhammar (main coder, project leader) - metaur at users dot sourceforge dot net - http://www.advogato.org/person/metaur/ - -* Richard R. Vásquez, Jr. (coder of object-oriented kses) - contact him at http://chaos.org/contact/ - - -THANKS TO -========= - -* Peter Valach (code review and feature suggestions) -* Simon Cornelius P. Umacob (testing) -* unitedhacker2000@yahoo.com (bug report) -* Dirk Haun (feature suggestion) -* Hendy Irawan (bug report and documentation suggestion) -* dude21 (feature suggestion) -* Christian Bolstad (documentation suggestion) -* SourceForge (project hosting) - -Thanks also go to a lot of people who posted to the Bugtraq and -Webappsec mailing lists about XSS or HTML filters. They gave us some -valuable insights. diff --git a/vendors/kses/COPYING b/vendors/kses/COPYING deleted file mode 100644 index d60c31a97..000000000 --- a/vendors/kses/COPYING +++ /dev/null @@ -1,340 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -License is intended to guarantee your freedom to share and change free -software--to make sure the software is free for all its users. This -General Public License applies to most of the Free Software -Foundation's software and to any other program whose authors commit to -using it. (Some other Free Software Foundation software is covered by -the GNU Library General Public License instead.) You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -this service if you wish), that you receive source code or can get it -if you want it, that you can change the software or use pieces of it -in new free programs; and that you know you can do these things. - - To protect your rights, we need to make restrictions that forbid -anyone to deny you these rights or to ask you to surrender the rights. -These restrictions translate to certain responsibilities for you if you -distribute copies of the software, or if you modify it. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must give the recipients all the rights that -you have. You must make sure that they, too, receive or can get the -source code. And you must show them these terms so they know their -rights. - - We protect your rights with two steps: (1) copyright the software, and -(2) offer you this license which gives you legal permission to copy, -distribute and/or modify the software. - - Also, for each author's protection and ours, we want to make certain -that everyone understands that there is no warranty for this free -software. If the software is modified by someone else and passed on, we -want its recipients to know that what they have is not the original, so -that any problems introduced by others will not reflect on the original -authors' reputations. - - Finally, any free program is threatened constantly by software -patents. We wish to avoid the danger that redistributors of a free -program will individually obtain patent licenses, in effect making the -program proprietary. To prevent this, we have made it clear that any -patent must be licensed for everyone's free use or not licensed at all. - - The precise terms and conditions for copying, distribution and -modification follow. - - GNU GENERAL PUBLIC LICENSE - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - - 0. This License applies to any program or other work which contains -a notice placed by the copyright holder saying it may be distributed -under the terms of this General Public License. The "Program", below, -refers to any such program or work, and a "work based on the Program" -means either the Program or any derivative work under copyright law: -that is to say, a work containing the Program or a portion of it, -either verbatim or with modifications and/or translated into another -language. (Hereinafter, translation is included without limitation in -the term "modification".) Each licensee is addressed as "you". - -Activities other than copying, distribution and modification are not -covered by this License; they are outside its scope. The act of -running the Program is not restricted, and the output from the Program -is covered only if its contents constitute a work based on the -Program (independent of having been made by running the Program). -Whether that is true depends on what the Program does. - - 1. 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See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - -Also add information on how to contact you by electronic and paper mail. - -If the program is interactive, make it output a short notice like this -when it starts in an interactive mode: - - Gnomovision version 69, Copyright (C) year name of author - Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, the commands you use may -be called something other than `show w' and `show c'; they could even be -mouse-clicks or menu items--whatever suits your program. - -You should also get your employer (if you work as a programmer) or your -school, if any, to sign a "copyright disclaimer" for the program, if -necessary. Here is a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright interest in the program - `Gnomovision' (which makes passes at compilers) written by James Hacker. - - <signature of Ty Coon>, 1 April 1989 - Ty Coon, President of Vice - -This General Public License does not permit incorporating your program into -proprietary programs. If your program is a subroutine library, you may -consider it more useful to permit linking proprietary applications with the -library. If this is what you want to do, use the GNU Library General -Public License instead of this License. diff --git a/vendors/kses/ChangeLog b/vendors/kses/ChangeLog deleted file mode 100644 index 7102396ce..000000000 --- a/vendors/kses/ChangeLog +++ /dev/null @@ -1,168 +0,0 @@ -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 - ("javascript:") 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&T" and "<a href='lyrics.php?band=ladytron&lyrics=playgirl'>" will be - converted to "<a href='lyrics.php?band=ladytron&lyrics=playgirl'>". - ":" will be converted to ":", "&#XYZZY;" will be converted to - "&#XYZZY;", "ä!;" will be converted to "&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 > 5 <a href="blah"> - and now it converts it to: - x > 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). diff --git a/vendors/kses/README b/vendors/kses/README deleted file mode 100644 index 192524c9f..000000000 --- a/vendors/kses/README +++ /dev/null @@ -1,206 +0,0 @@ -kses 0.2.2 README [kses strips evil scripts!] -================= - - -* INTRODUCTION * - - -Welcome to kses - an HTML/XHTML filter written in PHP. It removes all unwanted -HTML elements and attributes, no matter how malformed HTML input you give it. -It also does several checks on attribute values. kses can be used to avoid -Cross-Site Scripting (XSS), Buffer Overflows and Denial of Service attacks, -among other things. - -The program is released under the terms of the GNU General Public License. You -should look into what that means, before using kses in your programs. You can -find the full text of the license in the file COPYING. - - -* FEATURES * - - -Some of kses' current features are: - -* It will only allow the HTML elements and attributes that it was explicitly -told to allow. - -* Element and attribute names are case-insensitive (a href vs A HREF). - -* It will understand and process whitespace correctly. - -* Attribute values can be surrounded with quotes, apostrophes or nothing. - -* It will accept valueless attributes with just names and no values (selected). - -* It will accept XHTML's closing " /" marks. - -* Attribute values that are surrounded with nothing will get quotes to avoid -producing non-W3C conforming HTML -(<a href=http://sourceforge.net/projects/kses> works but isn't valid HTML). - -* It handles lots of types of malformed HTML, by interpreting the existing -code the best it can and then rebuilding new code from it. That's a better -approach than trying to process existing code, as you're bound to forget about -some weird special case somewhere. It handles problems like never-ending -quotes and tags gracefully. - -* It will remove additional "<" and ">" characters that people may try to -sneak in somewhere. - -* It supports checking attribute values for minimum/maximum length and -minimum/maximum value, to protect against Buffer Overflows and Denial of -Service attacks against WWW clients and various servers. You can stop -<iframe src= width= height=> from having too high values for width and height, -for instance. - -* It has got a system for whitelisting URL protocols. You can say that -attribute values may only start with http:, https:, ftp: and gopher:, but no -other URL protocols (javascript:, java:, about:, telnet:..). The functions that -do this work handle whitespace, upper/lower case, HTML entities -("javascript:") and repeated entries ("javascript:javascript:alert(57)"). -It also normalizes HTML entities as a nice side effect. - -* It removes Netscape 4's JavaScript entities ("&{alert(57)};"). - -* It handles NULL bytes and Opera's chr(173) whitespace characters. - -* There is a procedural version and two object-oriented versions (for PHP 4 - and PHP 5) of kses. - - -* USE IT * - - -It's very easy to use kses in your own PHP web application! Basic usage looks -like this: - - -<?php - -include 'kses.php'; - -$allowed = array('b' => array(), - 'i' => array(), - 'a' => array('href' => 1, 'title' => 1), - 'p' => array('align' => 1), - 'br' => array()); - -$val = $_POST['val']; -if (get_magic_quotes_gpc()) - $val = stripslashes($val); -# You must strip slashes from magic quotes, or kses will get confused. - -$val = kses($val, $allowed); # The filtering takes place here. - -# Do something with $val. - -?> - - -This definition of $allowed means that only the elements B, I, A, P and BR are -allowed (along with their closing tags /B, /I, /A, /P and /BR). B, I and BR -may not have any attributes. A may only have the attributes HREF and TITLE, -while P may only have the attribute ALIGN. You can list the elements and -attributes in the array in any mixture of upper and lower case. kses will also -recognize HTML code that uses both lower and upper case. - -It's important to select the right allowed attributes, so you won't open up -an XSS hole by mistake. Some important attributes that you mustn't allow -include but are not limited to: 1) style, and 2) all intrinsic events -attributes (onMouseOver and so on, on* really). I'll write more about this in -the documentation that will be distributed with future versions of kses. - -It's also important to note that kses' HTML input must be cleaned of all -slashes coming from magic quotes. If the rest of your code requires these -slashes to be present, you can always add them again after calling kses with -a simple addslashes() call. - -You should take a look at the documentation in the docs/ directory and the -examples in the examples/ directory, to get more information on how to use -kses. The object-oriented versions of kses are also worth checking out, and -they're included in the oop/ directory. - - -* UPGRADING TO 0.2.2 * - - -kses 0.2.2 is backwards compatible with all previous releases, so upgrading -should just be a matter of using a new version of kses.php instead of an old -one. - - -* NEW VERSIONS, MAILING LISTS AND BUG REPORTS * - - -If you want to download new versions, subscribe to the kses-general mailing -list or even take part in the development of kses, we refer you to its -homepage at http://sourceforge.net/projects/kses . New developers and beta -testers are more than welcome! - -If you have any bug reports, suggestions for improvement or simply want to tell -us that you use kses for some project, feel free to post to the kses-general -mailing list. If you have found any security problems (particularly XSS, -naturally) in kses, please contact Ulf privately at metaur at users dot -sourceforge dot net so he can correct it before you or someone else tells the -public about it. - -(No, it's not a security problem in kses if some program that uses it allows a -bad attribute, silly. If kses is told to accept the element body with the -attributes style and onLoad, it will accept them, even if that's a really bad -idea, securitywise.) - - -* OTHER HTML FILTERS * - - -Here are the other stand-alone, open source HTML filters that we currently know -of: - -* Htmlfilter for PHP - the filter from Squirrelmail - PHP - Konstantin Riabitsev - http://linux.duke.edu/projects/mini/htmlfilter/ - -* HTML::StripScripts and related CPAN modules - Perl - Nick Cleaton - http://search.cpan.org/perldoc?HTML%3A%3AStripScripts - -* SafeHtmlChecker [is this really open source?] - PHP - Simon Willison - http://simon.incutio.com/archive/2003/02/23/safeHtmlChecker - -There are also a lot of HTML filters that were written specifically for some -program. Some of them are better than others. - -Please write to the kses-general mailing list if you know of any other -stand-alone, open-source filters. - - -* DEDICATION * - - -kses 0.2.2 is dedicated to Audrey Tautou and Jean-Pierre Jeunet. - - -* MISC * - - -The kses code is based on an HTML filter that Ulf wrote on his own back in 2002 -for the open-source project Gnuheter ( http://savannah.nongnu.org/projects/ -gnuheter ). Gnuheter is a fork from PHP-Nuke. The HTML filter has been -improved a lot since then. - -To stop people from having sleepless nights, we feel the urgent need to state -that kses doesn't have anything to do with the KDE project, despite having a -name that starts with a K. - -In case someone was wondering, Ulf is available for kses-related consulting. - -Finally, the name kses comes from the terms XSS and access. It's also a -recursive acronym (every open-source project should have one!) for "kses -strips evil scripts". - - -// Ulf and the kses development group, February 2005 diff --git a/vendors/kses/TODO b/vendors/kses/TODO deleted file mode 100644 index 93652d46a..000000000 --- a/vendors/kses/TODO +++ /dev/null @@ -1,40 +0,0 @@ -kses TODO -========= - -* create a nice homepage with interactive kses testing - -* remove stuff in between <script>..</script> and <style>..</style> - -* better fix for chr(173) bug and try to allow for "style:" where people - want to use it - -* XHTML tags of the style <br/> instead of <br /> - This is related to a small bug with <a href="blah /> - Solution: rewrite parser. - -(* rewrite document to XHTML or HTML) - -* more attribute value checks - -* more types of hooks - -* return array of removed elements and attributes - -* give the option of turning unacceptable elements to entities instead of - removing them (and turn unacceptable attributes to their own tag, which is - then turned to entities?) .. perhaps turn to comments as well? - -* ">" in HTML tags - <img src="blah.gif" alt="x > 5"> - Not very important, but.. - -(* make document well-formed.. there is HTML Tidy, but perhaps we want this - functionality in kses itself?) - -* port to other programming languages to achieve world domination - -* lots of testing - -* write better documentation - -* feedback from users diff --git a/vendors/kses/docs/attribute-value-checks b/vendors/kses/docs/attribute-value-checks deleted file mode 100644 index 8b0d645ee..000000000 --- a/vendors/kses/docs/attribute-value-checks +++ /dev/null @@ -1,68 +0,0 @@ -kses attribute value checks -=========================== - -As you've probably already read in the README file, an $allowed_html array -normally looks like this: - -$allowed = array('b' => array(), - 'i' => array(), - 'a' => array('href' => 1, - 'title' => 1), - 'p' => array('align' => 1), - 'br' => array()); - -This sets what elements and attributes are allowed. - -From kses 0.2.0, you can also perform some checks on the attribute values. You -do it like this: - -$allowed = array('b' => array(), - 'i' => array(), - 'a' => array('href' => - array('maxlen' => 100), - 'title' => 1), - 'p' => array('align' => 1), - 'font' => array('size' => - array('maxval' => 20)), - 'br' => array()); - -This means that kses should perform the maxlen check with the value 100 on the -<a href=> value, as well as the maxval check with the value 20 on the <font -size=> value. - -The currently implemented checks (with more to come) are 'maxlen', 'maxval', -'minlen', 'minval' and 'valueless'. - -'maxlen' checks that the length of the attribute value is not greater than the -given value. It is helpful against Buffer Overflows in WWW clients and various -servers on the Internet. In my example above, it would mean that -"<a href='ftp://ftp.v1ct1m.com/AAAA..thousands_of_A's...'>" wouldn't be -accepted. - -Of course, this problem is even worse if you put that long URL in a <frame> -tag instead, so the WWW client will fetch it automatically without a user -having to click it. - -'maxval' checks that the attribute value is an integer greater than or equal to -zero, that it doesn't have an unreasonable amount of zeroes or whitespace (to -avoid Buffer Overflows), and that it is not greater than the given value. In -my example above, it would mean that "<font size='20'>" is accepted but -"<font size='21'>" is not. This check helps against Denial of Service attacks -against WWW clients. - -One example of this DoS problem is <iframe src="http://some.web.server/" -width="20000" height="2000">, which makes some client machines completely -overloaded. - -'minlen' and 'minval' works the same as 'maxlen' and 'maxval', except that they -check for minimum lengths and values instead of maximum ones. - -'valueless' checks if an attribute has a value (like <a href="blah">) or not -(<option selected>). If the given value is a "y" or a "Y", the attribute must -not have a value to be accepted. If the given value is an "n" or an "N", the -attribute must have a value. Note that <a href=""> is considered to have a -value, so there's a difference between valueless attributes and attribute -values with the length zero. - -You can combine more than one check, by putting one after the other in the -inner array. diff --git a/vendors/kses/docs/hooks b/vendors/kses/docs/hooks deleted file mode 100644 index 971ff1ca4..000000000 --- a/vendors/kses/docs/hooks +++ /dev/null @@ -1,7 +0,0 @@ -kses hooks -========== - -Sometimes you want to perform one more action on all data that kses will -filter. There is a special function for that purpose called kses_hook(). kses -calls it from its main function kses(), so if you insert some code in -kses_hook(), it will always be called to change all data that kses sees. diff --git a/vendors/kses/docs/stripping-everything b/vendors/kses/docs/stripping-everything deleted file mode 100644 index f11742b7c..000000000 --- a/vendors/kses/docs/stripping-everything +++ /dev/null @@ -1,7 +0,0 @@ -kses stripping everything -========================= - -Sometimes you want to use kses for stripping all (X)HTML tags from a document. -You do it by calling kses like this: - -$doc = kses($doc, array()); diff --git a/vendors/kses/docs/supported-formats b/vendors/kses/docs/supported-formats deleted file mode 100644 index c0a9d9740..000000000 --- a/vendors/kses/docs/supported-formats +++ /dev/null @@ -1,6 +0,0 @@ -kses supported formats -====================== - -It should be noted that kses doesn't deal with any smiley plus newline plus -HTML format. It uses HTML or XHTML, both as input and as output. -Conversions from the preferred format to or from HTML or XHTML is up to you. diff --git a/vendors/kses/docs/whitelisted-url-protocols b/vendors/kses/docs/whitelisted-url-protocols deleted file mode 100644 index a0032c4cc..000000000 --- a/vendors/kses/docs/whitelisted-url-protocols +++ /dev/null @@ -1,15 +0,0 @@ -kses whitelisted URL protocols -============================== - -From kses 0.2.0, it has a function that checks all attribute values for URL -protocols and only allows the protocols given in a whitelist. - -If you call kses the old way with two parameters - a string and an -$allowed_html array - it will take its own default array, which whitelists the -protocols http, https, ftp, news, nntp, telnet, gopher and mailto. Pretty -reasonable, but anyone who wants to change it just calls the kses() function -with a third parameter, like this: - -$string = kses($string, $allowed_html, array('http', 'https')); - -Note that you shouldn't include any colon after http or other protocol names. diff --git a/vendors/kses/examples/filter.php b/vendors/kses/examples/filter.php deleted file mode 100644 index 9a026795b..000000000 --- a/vendors/kses/examples/filter.php +++ /dev/null @@ -1,138 +0,0 @@ -<?php - -# filter - simple example script for kses -# Copyright (C) 2003, 2005 Ulf Harnhammar -# -# This program is free software and open source software; you can redistribute -# it and/or modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation; either version 2 of the License, -# or (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -# more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., -# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit -# http://www.gnu.org/licenses/gpl.html -# -# *** CONTACT INFORMATION *** -# -# E-mail: metaur at users dot sourceforge dot net -# Web page: http://sourceforge.net/projects/kses -# Paper mail: Ulf Harnhammar -# Ymergatan 17 C -# 753 25 Uppsala -# SWEDEN - -# *** INCLUDE kses, DEFINE ELEMENTS+ATTRIBUTES, STRIP MAGIC QUOTES *** - -include '../kses.php'; - -$allowed = array('b' => array(), - 'i' => array(), - 'a' => array('href' => array('minlen' => 3, 'maxlen' => 50), - 'title' => array('valueless' => 'n')), - 'p' => array('align' => 1, - 'dummy' => array('valueless' => 'y')), - 'img' => array('src' => 1), # FIXME - 'font' => array('size' => - array('minval' => 4, 'maxval' => 20)), - 'br' => array()); - -$val = $_POST['val']; -if (get_magic_quotes_gpc()) - $val = stripslashes($val); - -# *** PRINT SOME HTML CODE *** - -?> -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" - "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<head> -<title>kses example: HTML filter</title> -<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> -</head> - -<body> - -<?php - -# *** SHOW THE USER'S INPUT *** - -?> -<h1>Input</h1> - -<pre><?= htmlspecialchars($val); ?></pre> - -<?php - -# *** SHOW IT AFTER FILTERING *** - -?> -<h1>Output</h1> - -<pre><?php - -$val = kses($val, $allowed, array('http', 'https')); -# The filtering takes place on the line above. -echo htmlspecialchars($val); - -?></pre> - -<?php - -# *** DISPLAY A TEXTAREA FOR THE USER TO TYPE IN *** - -?> -<h1>Type something</h1> - -<form method="POST" action="filter.php"> -<textarea name="val" rows=5 cols=50><?= htmlspecialchars($val); ?></textarea> -<br> -<input type="submit" value="Send it!"> -</form> - -<?php - -# *** SHOW ALLOWED ELEMENTS+ATTRIBUTES *** - -?> -<p> -Only the following HTML elements and attributes are allowed: -</p> - -<p> -<?php -$first = 1; -foreach ($allowed as $htmlkey => $htmlval) -{ - if (!$first) - echo ' '; - $first = 0; - - echo "<$htmlkey"; # element - - foreach ($htmlval as $html2key => $html2val) - echo " <i>$html2key=</i>"; # attribute - - echo ">"; -} - -?> - -</p> - -<p> -<a href=> must have a length in the range 3 to 50.<br> -<a title=> must not be valueless.<br> -<p dummy> must be valueless.<br> -<font size=> must have a value in the range 4 to 20.<br> -Only the URL protocols "http" and "https" are allowed. -</p> - -</body> -</html> diff --git a/vendors/kses/examples/test.php b/vendors/kses/examples/test.php deleted file mode 100644 index e0c6695c8..000000000 --- a/vendors/kses/examples/test.php +++ /dev/null @@ -1,224 +0,0 @@ -<?php - -# test - checks if a kses installation is working -# Copyright (C) 2003, 2005 Ulf Harnhammar -# -# This program is free software and open source software; you can redistribute -# it and/or modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation; either version 2 of the License, -# or (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -# more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., -# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit -# http://www.gnu.org/licenses/gpl.html -# -# *** CONTACT INFORMATION *** -# -# E-mail: metaur at users dot sourceforge dot net -# Web page: http://sourceforge.net/projects/kses -# Paper mail: Ulf Harnhammar -# Ymergatan 17 C -# 753 25 Uppsala -# SWEDEN - -include '../kses.php'; - -?> -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" - "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<head> -<title>kses test</title> -<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> -</head> - -<body> -<h1>kses test</h1> -<p> - -<?php - - -# *** FUNCTION DEFINITIONS *** - - -function onetest($htmlbefore, $htmlafter, &$score, &$max, $allowed) -############################################################################### -# This function performs one kses test. -############################################################################### -{ - $max++; - - $htmlkses = kses($htmlbefore, $allowed); -# echo "htmlkses --".htmlspecialchars($htmlkses)."--<br>\n"; - - if ($htmlkses == $htmlafter) - { - echo 'OK'; - $score++; - } - else - echo 'not OK'; - - echo "<br>\n"; -} # function onetest - - -# *** MAIN PROGRAM *** - - -$max = $score = 0; - -# Test #1 - -echo 'Test #1.. '; -$htmlbefore = 'kses \'kses\' kses "kses" kses \\kses\\'; -$htmlafter = $htmlbefore; -onetest($htmlbefore, $htmlafter, $score, $max, array()); - -# Test #2 - -echo 'Test #2.. '; -$htmlbefore = 'kses <br>'; -$htmlafter = 'kses '; -onetest($htmlbefore, $htmlafter, $score, $max, array()); - -# Test #3 - -echo 'Test #3.. '; -$htmlbefore = 'kses < BR >'; -$htmlafter = 'kses <BR>'; -onetest($htmlbefore, $htmlafter, $score, $max, array('br' => array())); - -# Test #4 - -echo 'Test #4.. '; -$htmlbefore = 'kses > 5 <br>'; -$htmlafter = 'kses > 5 <br>'; -onetest($htmlbefore, $htmlafter, $score, $max, array('br' => array())); - -# Test #5 - -echo 'Test #5.. '; -$htmlbefore = 'kses < br'; -$htmlafter = 'kses <br>'; -onetest($htmlbefore, $htmlafter, $score, $max, array('br' => array())); - -# Test #6 - -echo 'Test #6.. '; -$htmlbefore = 'kses <a href=5>'; -$htmlafter = 'kses <a>'; -onetest($htmlbefore, $htmlafter, $score, $max, array('br' => array(), - 'a' => array())); - -# Test #7 - -echo 'Test #7.. '; -$htmlbefore = 'kses <a href=5>'; -$htmlafter = 'kses <a href="5">'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #8 - -echo 'Test #8.. '; -$htmlbefore = 'kses <a href>'; -$htmlafter = $htmlbefore; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #9 - -echo 'Test #9.. '; -$htmlbefore = 'kses <a href href=5 href=\'5\' href="5" dummy>'; -$htmlafter = 'kses <a href href="5" href=\'5\' href="5">'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #10 - -echo 'Test #10.. '; -$htmlbefore = 'kses <a href="kses\\\\kses">'; -$htmlafter = $htmlbefore; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #11 - -echo 'Test #11.. '; -$htmlbefore = 'kses <a href="xxxxxx">'; -$htmlafter = $htmlbefore; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => array('maxlen' => 6)))); - -# Test #12 - -echo 'Test #12.. '; -$htmlbefore = 'kses <a href="xxxxxxx">'; -$htmlafter = 'kses <a>'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => array('maxlen' => 6)))); - -# Test #13 - -echo 'Test #13.. '; -$htmlbefore = 'kses <a href="687">'; -$htmlafter = 'kses <a>'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => array('maxval' => 686)))); - -# Test #14 - -echo 'Test #14.. '; -$htmlbefore = 'kses <a href="xx" / >'; -$htmlafter = 'kses <a href="xx" />'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => array('maxlen' => 6)))); - -# Test #15 - -echo 'Test #15.. '; -$htmlbefore = 'kses <a href="JAVA java scrIpt : SCRIPT : alert(57)">'; -$htmlafter = 'kses <a href="alert(57)">'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #16 - -echo 'Test #16.. '; -$htmlbefore = 'kses <a href="htt  ­­'.chr(173).'P://ulf">'; -$htmlafter = 'kses <a href="http://ulf">'; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - -# Test #17 - -echo 'Test #17.. '; -$htmlbefore = 'kses <a href="/start.php"> kses <a href="start.php">'; -$htmlafter = $htmlbefore; -onetest($htmlbefore, $htmlafter, $score, $max, - array('a' => array('href' => 1))); - - -# finished - -echo "<br>Score $score out of $max\n"; - -if ($score != $max) - echo '<br>Something is wrong! Please contact '. - '<a href="mailto:kses-general@lists.sourceforge.net">'. - 'the kses-general mailing list</a>, and tell us what '. - "operating system and PHP version you use.\n"; - -?> - -</p> -</body> -</html> diff --git a/vendors/kses/kses.php b/vendors/kses/kses.php deleted file mode 100644 index 65da29599..000000000 --- a/vendors/kses/kses.php +++ /dev/null @@ -1,555 +0,0 @@ -<?php - -# kses 0.2.2 - HTML/XHTML filter that only allows some elements and attributes -# Copyright (C) 2002, 2003, 2005 Ulf Harnhammar -# -# This program is free software and open source software; you can redistribute -# it and/or modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation; either version 2 of the License, -# or (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -# more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., -# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit -# http://www.gnu.org/licenses/gpl.html -# -# *** CONTACT INFORMATION *** -# -# E-mail: metaur at users dot sourceforge dot net -# Web page: http://sourceforge.net/projects/kses -# Paper mail: Ulf Harnhammar -# Ymergatan 17 C -# 753 25 Uppsala -# SWEDEN -# -# [kses strips evil scripts!] - - -function kses($string, $allowed_html, $allowed_protocols = - array('http', 'https', 'ftp', 'news', 'nntp', 'telnet', - 'gopher', 'mailto')) -############################################################################### -# This function makes sure that only the allowed HTML element names, attribute -# names and attribute values plus only sane HTML entities will occur in -# $string. You have to remove any slashes from PHP's magic quotes before you -# call this function. -############################################################################### -{ - $string = kses_no_null($string); - $string = kses_js_entities($string); - $string = kses_normalize_entities($string); - $string = kses_hook($string); - $allowed_html_fixed = kses_array_lc($allowed_html); - return kses_split($string, $allowed_html_fixed, $allowed_protocols); -} # function kses - - -function kses_hook($string) -############################################################################### -# You add any kses hooks here. -############################################################################### -{ - return $string; -} # function kses_hook - - -function kses_version() -############################################################################### -# This function returns kses' version number. -############################################################################### -{ - return '0.2.2'; -} # function kses_version - - -function kses_split($string, $allowed_html, $allowed_protocols) -############################################################################### -# This function searches for HTML tags, no matter how malformed. It also -# matches stray ">" characters. -############################################################################### -{ - return preg_replace('%(<'. # EITHER: < - '[^>]*'. # things that aren't > - '(>|$)'. # > or end of string - '|>)%e', # OR: just a > - "kses_split2('\\1', \$allowed_html, ". - '$allowed_protocols)', - $string); -} # function kses_split - - -function kses_split2($string, $allowed_html, $allowed_protocols) -############################################################################### -# This function does a lot of work. It rejects some very malformed things -# like <:::>. It returns an empty string, if the element isn't allowed (look -# ma, no strip_tags()!). Otherwise it splits the tag into an element and an -# attribute list. -############################################################################### -{ - $string = kses_stripslashes($string); - - if (substr($string, 0, 1) != '<') - return '>'; - # It matched a ">" character - - if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) - return ''; - # It's seriously malformed - - $slash = trim($matches[1]); - $elem = $matches[2]; - $attrlist = $matches[3]; - - if (!@isset($allowed_html[strtolower($elem)])) - return ''; - # They are using a not allowed HTML element - - if ($slash != '') - return "<$slash$elem>"; - # No attributes are allowed for closing elements - - return kses_attr("$slash$elem", $attrlist, $allowed_html, - $allowed_protocols); -} # function kses_split2 - - -function kses_attr($element, $attr, $allowed_html, $allowed_protocols) -############################################################################### -# This function removes all attributes, if none are allowed for this element. -# If some are allowed it calls kses_hair() to split them further, and then it -# builds up new HTML code from the data that kses_hair() returns. It also -# removes "<" and ">" characters, if there are any left. One more thing it -# does is to check if the tag has a closing XHTML slash, and if it does, -# it puts one in the returned code as well. -############################################################################### -{ -# Is there a closing XHTML slash at the end of the attributes? - - $xhtml_slash = ''; - if (preg_match('%\s/\s*$%', $attr)) - $xhtml_slash = ' /'; - -# Are any attributes allowed at all for this element? - - if (@count($allowed_html[strtolower($element)]) == 0) - return "<$element$xhtml_slash>"; - -# Split it - - $attrarr = kses_hair($attr, $allowed_protocols); - -# Go through $attrarr, and save the allowed attributes for this element -# in $attr2 - - $attr2 = ''; - - foreach ($attrarr as $arreach) - { - if (!@isset($allowed_html[strtolower($element)] - [strtolower($arreach['name'])])) - continue; # the attribute is not allowed - - $current = $allowed_html[strtolower($element)] - [strtolower($arreach['name'])]; - - if (!is_array($current)) - $attr2 .= ' '.$arreach['whole']; - # there are no checks - - else - { - # there are some checks - $ok = true; - foreach ($current as $currkey => $currval) - if (!kses_check_attr_val($arreach['value'], $arreach['vless'], - $currkey, $currval)) - { $ok = false; break; } - - if ($ok) - $attr2 .= ' '.$arreach['whole']; # it passed them - } # if !is_array($current) - } # foreach - -# Remove any "<" or ">" characters - - $attr2 = preg_replace('/[<>]/', '', $attr2); - - return "<$element$attr2$xhtml_slash>"; -} # function kses_attr - - -function kses_hair($attr, $allowed_protocols) -############################################################################### -# This function does a lot of work. It parses an attribute list into an array -# with attribute data, and tries to do the right thing even if it gets weird -# input. It will add quotes around attribute values that don't have any quotes -# or apostrophes around them, to make it easier to produce HTML code that will -# conform to W3C's HTML specification. It will also remove bad URL protocols -# from attribute values. -############################################################################### -{ - $attrarr = array(); - $mode = 0; - $attrname = ''; - -# Loop through the whole attribute list - - while (strlen($attr) != 0) - { - $working = 0; # Was the last operation successful? - - switch ($mode) - { - case 0: # attribute name, href for instance - - if (preg_match('/^([-a-zA-Z]+)/', $attr, $match)) - { - $attrname = $match[1]; - $working = $mode = 1; - $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr); - } - - break; - - case 1: # equals sign or valueless ("selected") - - if (preg_match('/^\s*=\s*/', $attr)) # equals sign - { - $working = 1; $mode = 2; - $attr = preg_replace('/^\s*=\s*/', '', $attr); - break; - } - - if (preg_match('/^\s+/', $attr)) # valueless - { - $working = 1; $mode = 0; - $attrarr[] = array - ('name' => $attrname, - 'value' => '', - 'whole' => $attrname, - 'vless' => 'y'); - $attr = preg_replace('/^\s+/', '', $attr); - } - - break; - - case 2: # attribute value, a URL after href= for instance - - if (preg_match('/^"([^"]*)"(\s+|$)/', $attr, $match)) - # "value" - { - $thisval = kses_bad_protocol($match[1], $allowed_protocols); - - $attrarr[] = array - ('name' => $attrname, - 'value' => $thisval, - 'whole' => "$attrname=\"$thisval\"", - 'vless' => 'n'); - $working = 1; $mode = 0; - $attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr); - break; - } - - if (preg_match("/^'([^']*)'(\s+|$)/", $attr, $match)) - # 'value' - { - $thisval = kses_bad_protocol($match[1], $allowed_protocols); - - $attrarr[] = array - ('name' => $attrname, - 'value' => $thisval, - 'whole' => "$attrname='$thisval'", - 'vless' => 'n'); - $working = 1; $mode = 0; - $attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr); - break; - } - - if (preg_match("%^([^\s\"']+)(\s+|$)%", $attr, $match)) - # value - { - $thisval = kses_bad_protocol($match[1], $allowed_protocols); - - $attrarr[] = array - ('name' => $attrname, - 'value' => $thisval, - 'whole' => "$attrname=\"$thisval\"", - 'vless' => 'n'); - # We add quotes to conform to W3C's HTML spec. - $working = 1; $mode = 0; - $attr = preg_replace("%^[^\s\"']+(\s+|$)%", '', $attr); - } - - break; - } # switch - - if ($working == 0) # not well formed, remove and try again - { - $attr = kses_html_error($attr); - $mode = 0; - } - } # while - - if ($mode == 1) - # special case, for when the attribute list ends with a valueless - # attribute like "selected" - $attrarr[] = array - ('name' => $attrname, - 'value' => '', - 'whole' => $attrname, - 'vless' => 'y'); - - return $attrarr; -} # function kses_hair - - -function kses_check_attr_val($value, $vless, $checkname, $checkvalue) -############################################################################### -# This function performs different checks for attribute values. The currently -# implemented checks are "maxlen", "minlen", "maxval", "minval" and "valueless" -# with even more checks to come soon. -############################################################################### -{ - $ok = true; - - switch (strtolower($checkname)) - { - case 'maxlen': - # The maxlen check makes sure that the attribute value has a length not - # greater than the given value. This can be used to avoid Buffer Overflows - # in WWW clients and various Internet servers. - - if (strlen($value) > $checkvalue) - $ok = false; - break; - - case 'minlen': - # The minlen check makes sure that the attribute value has a length not - # smaller than the given value. - - if (strlen($value) < $checkvalue) - $ok = false; - break; - - case 'maxval': - # The maxval check does two things: it checks that the attribute value is - # an integer from 0 and up, without an excessive amount of zeroes or - # whitespace (to avoid Buffer Overflows). It also checks that the attribute - # value is not greater than the given value. - # This check can be used to avoid Denial of Service attacks. - - if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) - $ok = false; - if ($value > $checkvalue) - $ok = false; - break; - - case 'minval': - # The minval check checks that the attribute value is a positive integer, - # and that it is not smaller than the given value. - - if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) - $ok = false; - if ($value < $checkvalue) - $ok = false; - break; - - case 'valueless': - # The valueless check checks if the attribute has a value - # (like <a href="blah">) or not (<option selected>). If the given value - # is a "y" or a "Y", the attribute must not have a value. - # If the given value is an "n" or an "N", the attribute must have one. - - if (strtolower($checkvalue) != $vless) - $ok = false; - break; - } # switch - - return $ok; -} # function kses_check_attr_val - - -function kses_bad_protocol($string, $allowed_protocols) -############################################################################### -# This function removes all non-allowed protocols from the beginning of -# $string. It ignores whitespace and the case of the letters, and it does -# understand HTML entities. It does its work in a while loop, so it won't be -# fooled by a string like "javascript:javascript:alert(57)". -############################################################################### -{ - $string = kses_no_null($string); - $string = preg_replace('/\xad+/', '', $string); # deals with Opera "feature" - $string2 = $string.'a'; - - while ($string != $string2) - { - $string2 = $string; - $string = kses_bad_protocol_once($string, $allowed_protocols); - } # while - - return $string; -} # function kses_bad_protocol - - -function kses_no_null($string) -############################################################################### -# This function removes any NULL characters in $string. -############################################################################### -{ - $string = preg_replace('/\0+/', '', $string); - $string = preg_replace('/(\\\\0)+/', '', $string); - - return $string; -} # function kses_no_null - - -function kses_stripslashes($string) -############################################################################### -# This function changes the character sequence \" to just " -# It leaves all other slashes alone. It's really weird, but the quoting from -# preg_replace(//e) seems to require this. -############################################################################### -{ - return preg_replace('%\\\\"%', '"', $string); -} # function kses_stripslashes - - -function kses_array_lc($inarray) -############################################################################### -# This function goes through an array, and changes the keys to all lower case. -############################################################################### -{ - $outarray = array(); -
- if (sizeof($inarray)) - foreach ($inarray as $inkey => $inval) - { - $outkey = strtolower($inkey); - $outarray[$outkey] = array(); - - foreach ($inval as $inkey2 => $inval2) - { - $outkey2 = strtolower($inkey2); - $outarray[$outkey][$outkey2] = $inval2; - } # foreach $inval - } # foreach $inarray - - return $outarray; -} # function kses_array_lc - - -function kses_js_entities($string) -############################################################################### -# This function removes the HTML JavaScript entities found in early versions of -# Netscape 4. -############################################################################### -{ - return preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $string); -} # function kses_js_entities - - -function kses_html_error($string) -############################################################################### -# This function deals with parsing errors in kses_hair(). The general plan is -# to remove everything to and including some whitespace, but it deals with -# quotes and apostrophes as well. -############################################################################### -{ - return preg_replace('/^("[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*/', '', $string); -} # function kses_html_error - - -function kses_bad_protocol_once($string, $allowed_protocols) -############################################################################### -# This function searches for URL protocols at the beginning of $string, while -# handling whitespace and HTML entities. -############################################################################### -{ - return preg_replace('/^((&[^;]*;|[\sA-Za-z0-9])*)'. - '(:|:|&#[Xx]3[Aa];)\s*/e', - 'kses_bad_protocol_once2("\\1", $allowed_protocols)', - $string); -} # function kses_bad_protocol_once - - -function kses_bad_protocol_once2($string, $allowed_protocols) -############################################################################### -# This function processes URL protocols, checks to see if they're in the white- -# list or not, and returns different data depending on the answer. -############################################################################### -{ - $string2 = kses_decode_entities($string); - $string2 = preg_replace('/\s/', '', $string2); - $string2 = kses_no_null($string2); - $string2 = preg_replace('/\xad+/', '', $string2); - # deals with Opera "feature" - $string2 = strtolower($string2); - - $allowed = false; - foreach ($allowed_protocols as $one_protocol) - if (strtolower($one_protocol) == $string2) - { - $allowed = true; - break; - } - - if ($allowed) - return "$string2:"; - else - return ''; -} # function kses_bad_protocol_once2 - - -function kses_normalize_entities($string) -############################################################################### -# This function normalizes HTML entities. It will convert "AT&T" to the correct -# "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on. -############################################################################### -{ -# Disarm all entities by converting & to & - - // $string = str_replace('&', '&', $string); // [Marcus Povey 20090212: Commented out in ref #561. Needs a better solution. ] - -# Change back the allowed entities in our entity whitelist - - $string = preg_replace('/&([A-Za-z][A-Za-z0-9]{0,19});/', - '&\\1;', $string); - $string = preg_replace('/&#0*([0-9]{1,5});/e', - 'kses_normalize_entities2("\\1")', $string); - $string = preg_replace('/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/', - '&#\\1\\2;', $string); - - return $string; -} # function kses_normalize_entities - - -function kses_normalize_entities2($i) -############################################################################### -# This function helps kses_normalize_entities() to only accept 16 bit values -# and nothing more for &#number; entities. -############################################################################### -{ - return (($i > 65535) ? "&#$i;" : "&#$i;"); -} # function kses_normalize_entities2 - - -function kses_decode_entities($string) -############################################################################### -# This function decodes numeric HTML entities (A and A). It doesn't -# do anything with other entities like ä, but we don't need them in the -# URL protocol whitelisting system anyway. -############################################################################### -{ - $string = preg_replace('/&#([0-9]+);/e', 'chr("\\1")', $string); - $string = preg_replace('/&#[Xx]([0-9A-Fa-f]+);/e', 'chr(hexdec("\\1"))', - $string); - - return $string; -} # function kses_decode_entities - -?> diff --git a/vendors/kses/oop/oop.kses.changelog.txt b/vendors/kses/oop/oop.kses.changelog.txt deleted file mode 100644 index a82daf4fe..000000000 --- a/vendors/kses/oop/oop.kses.changelog.txt +++ /dev/null @@ -1,204 +0,0 @@ -kses ChangeLog
-==============
-
-KSES5
- * 1.0.2
-KSES4
- * 0.2.2
- - Folded in code from kses 0.2.2.
-
-KSES5
- * 1.0.1rc
-KSES4
- * 0.2.2rc
- - Added SetProtocols() to make protocol replacement a single step
- to fully answer concerns in bug #892477
-
-KSES5
- * 1.0.0
- - Turned many methods private
-
- - Now using __construct default constructor
-
- - Only runs in PHP5 or better
-
- - All method names changed to reflect verb status
-
- - Folded sinlge line functions into calling methods
-
- - Deprecated _hook(), Protocols()
-
- - Added AddProtocols() to replace Protocols()
-
- - Added filterKsesTextHook() to replace _hook()
-
- - Added RemoveProtocol() and RemoveProtocols() to remove protocols
- singly, or batch. This should clear bug #892477
-
- - Version number is 1.0.0
-
-KSES4
- * 0.2.1
- - Synced version number to procedural code
-
- - Deprecated _hook(), Protocols()
-
- - Added AddProtocols() to replace Protocols()
-
- - Added filterKsesTextHook() to replace _hook()
-
- - Added RemoveProtocol() and RemoveProtocols() to remove protocols singly,
- or batch. This should clear bug #892477
-
-OOP
- - Forked code into PHP4 and PHP5 versions. Use '$myKses = new kses[45]'
- from now on.
-
- - Modified code to run in E_STRICT. This should clear bug #918493
-
- - Added phpDoc commenting
-
-OOP
- * 0.0.2
- - Fixed a bug in AddProtocol that wasn't adding new protocols to
- $this->allowed_protocols
-
- - Modified internal methods to correspond to kses 0.2.1 modifications.
-
- - Created a basic test suite that can be run via web or CLI.
-
- - Started CVSing the code.
-
-OOP
- * 0.0.1
- - Turned all the kses_function_name functions to _function_name methods.
-
- - Added a couple of properties (allowed_protocols, allowed_html) with
- $this->allowed_protocols defaulting to the lion's share of usual
- protocols.
-
- - Modified the applicable use of preg_replace() functions to point to
- internal class methods.
-
- - Reduced the parameter list of some methods since internal properties
- are now being used.
-
- - Added "public" methods to set up the allowed protocols and HTML.
-
-Procedural
- * 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.
-
-Procedural
- * 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 ("javascript:") 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&T" and "<a href='lyrics.php?band=ladytron&lyrics=
- playgirl'>" will be converted to "<a href='lyrics.php?band=
- ladytron&lyrics=playgirl'>". ":" will be converted to
- ":", "&#XYZZY;" will be converted to "&#XYZZY;", "ä!;" will
- be converted to "&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 > 5 <a href="blah">
- and now it converts it to:
- x > 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 $SCRIPT_NAME, which doesn't work on
- Windows.
- (Reported by Simon Cornelius P. Umacob - thanks!)
-
- - kses now allows dashes in attribute names, for things like
- <meta http-equiv=..>.
-
-Procedural
- * 0.1.0, first public version
-
- 0.1.0 was released on the 9th of June 2003.
- It was announced on three security related mailing lists on Friday the
- 13th of June (nothing bad happened to it though).
diff --git a/vendors/kses/oop/oop.simple.api.txt b/vendors/kses/oop/oop.simple.api.txt deleted file mode 100644 index 144308a93..000000000 --- a/vendors/kses/oop/oop.simple.api.txt +++ /dev/null @@ -1,58 +0,0 @@ -Parse($string = "")
- The basic function of kses. Give it a $string, and it will strip
- out the unwanted HTML and attributes.
-
-AddProtocols()
- Add a protocol or list of protocols to the kses object to be
- considered valid during a Parse(). The parameter can be a string
- containing a single protocol, or an array of strings, each
- containing a single protocol.
-
-Protocols()
- Deprecated. Use AddProtocols()
-
-AddProtocol($protocol = "")
- Adds a single protocol to the kses object that will be considered
- valid during a Parse().
-
-SetProtocols()
- This is a straight setting/overwrite of existing protocols in the
- kses object. All existing protocols are removed, and the parameter
- is used to determine what protocol(s) the kses object will consider
- valid. The parameter can be a string containing a single protocol,
- or an array of strings, each constaining a single protocol.
-
-DumpProtocols()
- This returns an indexed array of the valid protocols contained in
- the kses object.
-
-DumpElements()
- This returns an associative array of the valid (X)HTML elements in
- the kses object along with attributes for each element, and tests
- that will be performed on each attribute.
-
-AddHTML($tag = "", $attribs = array())
- This allows the end user to add a single (X)HTML element to the
- kses object along with the (if any) attributes that the specific
- (X)HTML element is allowed to have.
-
- See the file 'attribute-value-checks' for more information as to
- the format of the data to be provided to this method.
-
-RemoveProtocol($protocol = "")
- This allows for the removal of a single protocol from the list of
- valid protocols in the kses object.
-
-RemoveProtocols()
- This allows for the single or batch removal of protocols from the
- kses object. The parameter is either a string containing a
- protocol to be removed, or an array of strings that each contain
- a protocol.
-
-filterKsesTextHook($string)
- For the OOP version of kses, this is an additional hook that allows
- the end user to perform additional postprocessing of a string
- that's being run through Parse().
-
-_hook()
- Deprecated. Use filterKsesTextHook().
\ No newline at end of file diff --git a/vendors/kses/oop/php4.class.kses.php b/vendors/kses/oop/php4.class.kses.php deleted file mode 100644 index acb06cc59..000000000 --- a/vendors/kses/oop/php4.class.kses.php +++ /dev/null @@ -1,1162 +0,0 @@ -<?php
- /*
- * ==========================================================================================
- *
- * This program is free software and open source software; you can redistribute
- * it and/or modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit
- * http://www.gnu.org/licenses/gpl.html
- *
- * ==========================================================================================
- */
-
- /**
- * Class file for PHP4 OOP version of kses
- *
- * This is an updated version of kses to work with PHP4 that works under E_STRICT.
- *
- * This upgrade provides the following:
- * + Version number synced to procedural version number
- * + PHPdoc style documentation has been added to the class. See http://www.phpdoc.org/ for more info.
- * + Some methods are now deprecated due to nomenclature style change. See method documentation for specifics.
- * + Kses4 now works in E_STRICT
- * + Addition of methods AddProtocols(), filterKsestextHook(), RemoveProtocol() and RemoveProtocols()
- * + Deprecated _hook(), Protocols()
- * + Integrated code from kses 0.2.2 into class.
- * + Added methods DumpProtocols(), DumpMethods()
- *
- * @package kses
- * @subpackage kses4
- */
-
- if(substr(phpversion(), 0, 1) < 4)
- {
- die("Class kses requires PHP 4 or higher.");
- }
-
- /**
- * Only install KSES4 once
- */
- if(!defined('KSES_CLASS_PHP4'))
- {
- define('KSES_CLASS_PHP4', true);
-
- /**
- * Kses strips evil scripts!
- *
- * This class provides the capability for removing unwanted HTML/XHTML, attributes from
- * tags, and protocols contained in links. The net result is a much more powerful tool
- * than the PHP internal strip_tags()
- *
- * This is a fork of a slick piece of procedural code called 'kses' written by Ulf Harnhammar
- * The entire set of functions was wrapped in a PHP object with some internal modifications
- * by Richard Vasquez (http://www.chaos.org/) 7/25/2003
- *
- * This upgrade provides the following:
- * + Version number synced to procedural version number
- * + PHPdoc style documentation has been added to the class. See http://www.phpdoc.org/ for more info.
- * + Some methods are now deprecated due to nomenclature style change. See method documentation for specifics.
- * + Kses4 now works in E_STRICT
- * + Addition of methods AddProtocols(), filterKsestextHook(), RemoveProtocol(), RemoveProtocols() and SetProtocols()
- * + Deprecated _hook(), Protocols()
- * + Integrated code from kses 0.2.2 into class.
- *
- * @author Richard R. Vásquez, Jr. (Original procedural code by Ulf Härnhammar)
- * @link http://sourceforge.net/projects/kses/ Home Page for Kses
- * @link http://chaos.org/contact/ Contact page with current email address for Richard Vasquez
- * @copyright Richard R. Vásquez, Jr. 2003-2005
- * @version PHP4 OOP 0.2.2
- * @license http://www.gnu.org/licenses/gpl.html GNU Public License
- * @package kses
- */
- class kses4
- {
- /**#@+
- * @access private
- * @var array
- */
- var $allowed_protocols = array();
- var $allowed_html = array();
- /**#@-*/
-
- /**
- * Constructor for kses.
- *
- * This sets a default collection of protocols allowed in links, and creates an
- * empty set of allowed HTML tags.
- * @since PHP4 OOP 0.0.1
- */
- function kses4()
- {
- /**
- * You could add protocols such as ftp, new, gopher, mailto, irc, etc.
- *
- * The base values the original kses provided were:
- * 'http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'gopher', 'mailto'
- */
- $this->allowed_protocols = array('http', 'ftp', 'mailto');
- $this->allowed_html = array();
- }
-
- /**
- * Basic task of kses - parses $string and strips it as required.
- *
- * This method strips all the disallowed (X)HTML tags, attributes
- * and protocols from the input $string.
- *
- * @access public
- * @param string $string String to be stripped of 'evil scripts'
- * @return string The stripped string
- * @since PHP4 OOP 0.2.1
- */
- function Parse($string = "")
- {
- if (get_magic_quotes_gpc())
- {
- $string = stripslashes($string);
- }
- $string = $this->_no_null($string);
- $string = $this->_js_entities($string);
- $string = $this->_normalize_entities($string);
- $string = $this->filterKsesTextHook($string);
- return $this->_split($string);
- }
-
- /**
- * Allows for single/batch addition of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * The argument will be processed, and each string will be added
- * via AddProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be added to the internal list of allowed protocols.
- * @return bool Status of adding valid protocols.
- * @see AddProtocol()
- * @since PHP4 OOP 0.2.1
- */
- function AddProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses4::AddProtocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- foreach($protocol_data as $protocol)
- {
- $this->AddProtocol($protocol);
- }
- return true;
- }
- elseif(is_string($protocol_data))
- {
- $this->AddProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses4::AddProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * Allows for single/batch addition of protocols
- *
- * @deprecated Use AddProtocols()
- * @see AddProtocols()
- * @return bool
- * @since PHP4 OOP 0.0.1
- */
- function Protocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses4::Protocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- return $this->AddProtocols(func_get_arg(0));
- }
-
- /**
- * Adds a single protocol to $this->allowed_protocols.
- *
- * This method accepts a string argument and adds it to
- * the list of allowed protocols to keep when performing
- * Parse().
- *
- * @access public
- * @param string $protocol The name of the protocol to be added.
- * @return bool Status of adding valid protocol.
- * @since PHP4 OOP 0.0.1
- */
- function AddProtocol($protocol = "")
- {
- if(!is_string($protocol))
- {
- trigger_error("kses4::AddProtocol() requires a string.", E_USER_WARNING);
- return false;
- }
-
- $protocol = strtolower(trim($protocol));
- if($protocol == "")
- {
- trigger_error("kses4::AddProtocol() tried to add an empty/NULL protocol.", E_USER_WARNING);
- return false;
- }
-
- // Remove any inadvertent ':' at the end of the protocol.
- if(substr($protocol, strlen($protocol) - 1, 1) == ":")
- {
- $protocol = substr($protocol, 0, strlen($protocol) - 1);
- }
-
- if(!in_array($protocol, $this->allowed_protocols))
- {
- array_push($this->allowed_protocols, $protocol);
- sort($this->allowed_protocols);
- }
- return true;
- }
-
- /**
- * Allows for single/batch replacement of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * Existing protocols will be removed, then the argument will be
- * processed, and each string will be added via AddProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be the new internal list of allowed protocols.
- * @return bool Status of replacing valid protocols.
- * @since PHP4 OOP 0.2.2
- * @see AddProtocol()
- */
- function SetProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses4::SetProtocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- $this->allowed_protocols = array();
- foreach($protocol_data as $protocol)
- {
- $this->AddProtocol($protocol);
- }
- return true;
- }
- elseif(is_string($protocol_data))
- {
- $this->allowed_protocols = array();
- $this->AddProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses4::SetProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * Raw dump of allowed protocols
- *
- * This returns an indexed array of allowed protocols for a particular KSES
- * instantiation.
- *
- * @access public
- * @return array The list of allowed protocols.
- * @since PHP4 OOP 0.2.2
- */
- function DumpProtocols()
- {
- return $this->allowed_protocols;
- }
-
- /**
- * Raw dump of allowed (X)HTML elements
- *
- * This returns an indexed array of allowed (X)HTML elements and attributes
- * for a particular KSES instantiation.
- *
- * @access public
- * @return array The list of allowed elements.
- * @since PHP4 OOP 0.2.2
- */
- function DumpElements()
- {
- return $this->allowed_html;
- }
-
- /**
- * Adds valid (X)HTML with corresponding attributes that will be kept when stripping 'evil scripts'.
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * @access public
- * @param string $tag (X)HTML tag that will be allowed after stripping text.
- * @param array $attribs Associative array of allowed attributes - key => attribute name - value => attribute parameter
- * @return bool Status of Adding (X)HTML and attributes.
- * @since PHP4 OOP 0.0.1
- */
- function AddHTML($tag = "", $attribs = array())
- {
- if(!is_string($tag))
- {
- trigger_error("kses4::AddHTML() requires the tag to be a string", E_USER_WARNING);
- return false;
- }
-
- $tag = strtolower(trim($tag));
- if($tag == "")
- {
- trigger_error("kses4::AddHTML() tried to add an empty/NULL tag", E_USER_WARNING);
- return false;
- }
-
- if(!is_array($attribs))
- {
- trigger_error("kses4::AddHTML() requires an array (even an empty one) of attributes for '$tag'", E_USER_WARNING);
- return false;
- }
-
- $new_attribs = array();
- if(is_array($attribs) && count($attribs) > 0)
- {
- foreach($attribs as $idx1 => $val1)
- {
- $new_idx1 = strtolower($idx1);
- $new_val1 = $attribs[$idx1];
-
- if(is_array($new_val1) && count($new_val1) > 0)
- {
- $tmp_val = array();
- foreach($new_val1 as $idx2 => $val2)
- {
- $new_idx2 = strtolower($idx2);
- $tmp_val[$new_idx2] = $val2;
- }
- $new_val1 = $tmp_val;
- }
-
- $new_attribs[$new_idx1] = $new_val1;
- }
- }
-
- $this->allowed_html[$tag] = $new_attribs;
- return true;
- }
-
- /**
- * Removes a single protocol from $this->allowed_protocols.
- *
- * This method accepts a string argument and removes it from
- * the list of allowed protocols to keep when performing
- * Parse().
- *
- * @access public
- * @param string $protocol The name of the protocol to be removed.
- * @return bool Status of removing valid protocol.
- * @since PHP4 OOP 0.2.1
- */
- function RemoveProtocol($protocol = "")
- {
- if(!is_string($protocol))
- {
- trigger_error("kses4::RemoveProtocol() requires a string.", E_USER_WARNING);
- return false;
- }
-
- // Remove any inadvertent ':' at the end of the protocol.
- if(substr($protocol, strlen($protocol) - 1, 1) == ":")
- {
- $protocol = substr($protocol, 0, strlen($protocol) - 1);
- }
-
- $protocol = strtolower(trim($protocol));
- if($protocol == "")
- {
- trigger_error("kses4::RemoveProtocol() tried to remove an empty/NULL protocol.", E_USER_WARNING);
- return false;
- }
-
- // Ensures that the protocol exists before removing it.
- if(in_array($protocol, $this->allowed_protocols))
- {
- $this->allowed_protocols = array_diff($this->allowed_protocols, array($protocol));
- sort($this->allowed_protocols);
- }
-
- return true;
- }
-
- /**
- * Allows for single/batch removal of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * The argument will be processed, and each string will be removed
- * via RemoveProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be removed from the internal list of allowed protocols.
- * @return bool Status of removing valid protocols.
- * @see RemoveProtocol()
- * @since PHP5 OOP 0.2.1
- */
- function RemoveProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- foreach($protocol_data as $protocol)
- {
- $this->RemoveProtocol($protocol);
- }
- }
- elseif(is_string($protocol_data))
- {
- $this->RemoveProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses4::RemoveProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * This method removes any NULL or characters in $string.
- *
- * @access private
- * @param string $string
- * @return string String without any NULL/chr(173)
- * @since PHP4 OOP 0.0.1
- */
- function _no_null($string)
- {
- $string = preg_replace('/\0+/', '', $string);
- $string = preg_replace('/(\\\\0)+/', '', $string);
- return $string;
- }
-
- /**
- * This function removes the HTML JavaScript entities found in early versions of
- * Netscape 4.
- *
- * @access private
- * @param string $string
- * @return string String without any NULL/chr(173)
- * @since PHP4 OOP 0.0.1
- */
- function _js_entities($string)
- {
- return preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $string);
- }
-
- /**
- * Normalizes HTML entities
- *
- * This function normalizes HTML entities. It will convert "AT&T" to the correct
- * "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on.
- *
- * @access private
- * @param string $string
- * @return string String with normalized entities
- * @since PHP4 OOP 0.0.1
- */
- function _normalize_entities($string)
- {
- # Disarm all entities by converting & to &
- $string = str_replace('&', '&', $string);
-
- # Change back the allowed entities in our entity white list
-
- $string = preg_replace('/&([A-Za-z][A-Za-z0-9]{0,19});/', '&\\1;', $string);
- $string = preg_replace('/&#0*([0-9]{1,5});/e', '\$this->_normalize_entities2("\\1")', $string);
- $string = preg_replace('/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/', '&#\\1\\2;', $string);
-
- return $string;
- }
-
- /**
- * Helper method used by normalizeEntites()
- *
- * This method helps normalizeEntities() to only accept 16 bit values
- * and nothing more for &#number; entities.
- *
- * This method helps normalize_entities() during a preg_replace()
- * where a &#(0)*XXXXX; occurs. The '(0)*XXXXXX' value is converted to
- * a number and the result is returned as a numeric entity if the number
- * is less than 65536. Otherwise, the value is returned 'as is'.
- *
- * @access private
- * @param string $i
- * @return string Normalized numeric entity
- * @see _normalize_entities()
- * @since PHP4 OOP 0.0.1
- */
- function _normalize_entities2($i)
- {
- return (($i > 65535) ? "&#$i;" : "&#$i;");
- }
-
- /**
- * Allows for additional user defined modifications to text.
- *
- * @deprecated use filterKsesTextHook()
- * @param string $string
- * @see filterKsesTextHook()
- * @return string
- * @since PHP4 OOP 0.0.1
- */
- function _hook($string)
- {
- return $this->filterKsesTextHook($string);
- }
-
- /**
- * Allows for additional user defined modifications to text.
- *
- * This method allows for additional modifications to be performed on
- * a string that's being run through Parse(). Currently, it returns the
- * input string 'as is'.
- *
- * This method is provided for users to extend the kses class for their own
- * requirements.
- *
- * @access public
- * @param string $string String to perfrom additional modifications on.
- * @return string User modified string.
- * @see Parse()
- * @since PHP5 OOP 1.0.0
- */
- function filterKsesTextHook($string)
- {
- return $string;
- }
-
- /**
- * This method goes through an array, and changes the keys to all lower case.
- *
- * @access private
- * @param array $in_array Associative array
- * @return array Modified array
- * @since PHP4 OOP 0.0.1
- */
- function _array_lc($inarray)
- {
- $outarray = array();
-
- if(is_array($inarray) && count($inarray) > 0)
- {
- foreach ($inarray as $inkey => $inval)
- {
- $outkey = strtolower($inkey);
- $outarray[$outkey] = array();
-
- if(is_array($inval) && count($inval) > 0)
- {
- foreach ($inval as $inkey2 => $inval2)
- {
- $outkey2 = strtolower($inkey2);
- $outarray[$outkey][$outkey2] = $inval2;
- }
- }
- }
- }
-
- return $outarray;
- }
-
- /**
- * This method searched for HTML tags, no matter how malformed. It also
- * matches stray ">" characters.
- *
- * @access private
- * @param string $string
- * @return string HTML tags
- * @since PHP4 OOP 0.0.1
- */
- function _split($string)
- {
- return preg_replace(
- '%(<'. # EITHER: <
- '[^>]*'. # things that aren't >
- '(>|$)'. # > or end of string
- '|>)%e', # OR: just a >
- "\$this->_split2('\\1')",
- $string);
- }
-
- /**
- * This method strips out disallowed and/or mangled (X)HTML tags along with assigned attributes.
- *
- * This method does a lot of work. It rejects some very malformed things
- * like <:::>. It returns an empty string if the element isn't allowed (look
- * ma, no strip_tags()!). Otherwise it splits the tag into an element and an
- * allowed attribute list.
- *
- * @access private
- * @param string $string
- * @return string Modified string minus disallowed/mangled (X)HTML and attributes
- * @since PHP4 OOP 0.0.1
- */
- function _split2($string)
- {
- $string = $this->_stripslashes($string);
-
- if (substr($string, 0, 1) != '<')
- {
- # It matched a ">" character
- return '>';
- }
-
- if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches))
- {
- # It's seriously malformed
- return '';
- }
-
- $slash = trim($matches[1]);
- $elem = $matches[2];
- $attrlist = $matches[3];
-
- if (
- !isset($this->allowed_html[strtolower($elem)]) ||
- !is_array($this->allowed_html[strtolower($elem)])
- )
- {
- # They are using a not allowed HTML element
- return '';
- }
-
- if ($slash != '')
- {
- return "<$slash$elem>";
- }
- # No attributes are allowed for closing elements
-
- return $this->_attr("$slash$elem", $attrlist);
- }
-
- /**
- * This method strips out disallowed attributes for (X)HTML tags.
- *
- * This method removes all attributes if none are allowed for this element.
- * If some are allowed it calls $this->_hair() to split them further, and then it
- * builds up new HTML code from the data that $this->_hair() returns. It also
- * removes "<" and ">" characters, if there are any left. One more thing it
- * does is to check if the tag has a closing XHTML slash, and if it does,
- * it puts one in the returned code as well.
- *
- * @access private
- * @param string $element (X)HTML tag to check
- * @param string $attr Text containing attributes to check for validity.
- * @return string Resulting valid (X)HTML or ''
- * @see _hair()
- * @since PHP4 OOP 0.0.1
- */
- function _attr($element, $attr)
- {
- # Is there a closing XHTML slash at the end of the attributes?
- $xhtml_slash = '';
- if (preg_match('%\s/\s*$%', $attr))
- {
- $xhtml_slash = ' /';
- }
-
- # Are any attributes allowed at all for this element?
- if (
- !isset($this->allowed_html[strtolower($element)]) ||
- count($this->allowed_html[strtolower($element)]) == 0
- )
- {
- return "<$element$xhtml_slash>";
- }
-
- # Split it
- $attrarr = $this->_hair($attr);
-
- # Go through $attrarr, and save the allowed attributes for this element
- # in $attr2
- $attr2 = '';
- if(is_array($attrarr) && count($attrarr) > 0)
- {
- foreach ($attrarr as $arreach)
- {
- if(!isset($this->allowed_html[strtolower($element)][strtolower($arreach['name'])]))
- {
- continue;
- }
-
- $current = $this->allowed_html[strtolower($element)][strtolower($arreach['name'])];
- if ($current == '')
- {
- # the attribute is not allowed
- continue;
- }
-
- if (!is_array($current))
- {
- # there are no checks
- $attr2 .= ' '.$arreach['whole'];
- }
- else
- {
- # there are some checks
- $ok = true;
- if(is_array($current) && count($current) > 0)
- {
- foreach ($current as $currkey => $currval)
- {
- if (!$this->_check_attr_val($arreach['value'], $arreach['vless'], $currkey, $currval))
- {
- $ok = false;
- break;
- }
- }
-
- if ($ok)
- {
- # it passed them
- $attr2 .= ' '.$arreach['whole'];
- }
- }
- }
- }
- }
-
- # Remove any "<" or ">" characters
- $attr2 = preg_replace('/[<>]/', '', $attr2);
- return "<$element$attr2$xhtml_slash>";
- }
-
- /**
- * This method combs through an attribute list string and returns an associative array of attributes and values.
- *
- * This method does a lot of work. It parses an attribute list into an array
- * with attribute data, and tries to do the right thing even if it gets weird
- * input. It will add quotes around attribute values that don't have any quotes
- * or apostrophes around them, to make it easier to produce HTML code that will
- * conform to W3C's HTML specification. It will also remove bad URL protocols
- * from attribute values.
- *
- * @access private
- * @param string $attr Text containing tag attributes for parsing
- * @return array Associative array containing data on attribute and value
- * @since PHP4 OOP 0.0.1
- */
- function _hair($attr)
- {
- $attrarr = array();
- $mode = 0;
- $attrname = '';
-
- # Loop through the whole attribute list
-
- while (strlen($attr) != 0)
- {
- # Was the last operation successful?
- $working = 0;
-
- switch ($mode)
- {
- case 0: # attribute name, href for instance
- if (preg_match('/^([-a-zA-Z]+)/', $attr, $match))
- {
- $attrname = $match[1];
- $working = $mode = 1;
- $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr);
- }
- break;
- case 1: # equals sign or valueless ("selected")
- if (preg_match('/^\s*=\s*/', $attr)) # equals sign
- {
- $working = 1;
- $mode = 2;
- $attr = preg_replace('/^\s*=\s*/', '', $attr);
- break;
- }
- if (preg_match('/^\s+/', $attr)) # valueless
- {
- $working = 1;
- $mode = 0;
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => '',
- 'whole' => $attrname,
- 'vless' => 'y'
- );
- $attr = preg_replace('/^\s+/', '', $attr);
- }
- break;
- case 2: # attribute value, a URL after href= for instance
- if (preg_match('/^"([^"]*)"(\s+|$)/', $attr, $match)) # "value"
- {
- $thisval = $this->_bad_protocol($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => "$attrname=\"$thisval\"",
- 'vless' => 'n'
- );
- $working = 1;
- $mode = 0;
- $attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr);
- break;
- }
- if (preg_match("/^'([^']*)'(\s+|$)/", $attr, $match)) # 'value'
- {
- $thisval = $this->_bad_protocol($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => "$attrname='$thisval'",
- 'vless' => 'n'
- );
- $working = 1;
- $mode = 0;
- $attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr);
- break;
- }
- if (preg_match("%^([^\s\"']+)(\s+|$)%", $attr, $match)) # value
- {
- $thisval = $this->_bad_protocol($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => "$attrname=\"$thisval\"",
- 'vless' => 'n'
- );
- # We add quotes to conform to W3C's HTML spec.
- $working = 1;
- $mode = 0;
- $attr = preg_replace("%^[^\s\"']+(\s+|$)%", '', $attr);
- }
- break;
- }
-
- if ($working == 0) # not well formed, remove and try again
- {
- $attr = $this->_html_error($attr);
- $mode = 0;
- }
- }
-
- # special case, for when the attribute list ends with a valueless
- # attribute like "selected"
- if ($mode == 1)
- {
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => '',
- 'whole' => $attrname,
- 'vless' => 'y'
- );
- }
-
- return $attrarr;
- }
-
- /**
- * This method removes disallowed protocols.
- *
- * This method removes all non-allowed protocols from the beginning of
- * $string. It ignores whitespace and the case of the letters, and it does
- * understand HTML entities. It does its work in a while loop, so it won't be
- * fooled by a string like "javascript:javascript:alert(57)".
- *
- * @access private
- * @param string $string String to check for protocols
- * @return string String with removed protocols
- * @since PHP4 OOP 0.0.1
- */
- function _bad_protocol($string)
- {
- $string = $this->_no_null($string);
- $string = preg_replace('/\xad+/', '', $string); # deals with Opera "feature"
- $string2 = $string.'a';
-
- while ($string != $string2)
- {
- $string2 = $string;
- $string = $this->_bad_protocol_once($string);
- } # while
-
- return $string;
- }
-
- /**
- * Helper method used by _bad_protocol()
- *
- * This function searches for URL protocols at the beginning of $string, while
- * handling whitespace and HTML entities.
- *
- * @access private
- * @param string $string String to check for protocols
- * @return string String with removed protocols
- * @see _bad_protocol()
- * @since PHP4 OOP 0.0.1
- */
- function _bad_protocol_once($string)
- {
- return preg_replace(
- '/^((&[^;]*;|[\sA-Za-z0-9])*)'.
- '(:|:|&#[Xx]3[Aa];)\s*/e',
- '\$this->_bad_protocol_once2("\\1")',
- $string
- );
- }
-
- /**
- * Helper method used by _bad_protocol_once() regex
- *
- * This function processes URL protocols, checks to see if they're in the white-
- * list or not, and returns different data depending on the answer.
- *
- * @access private
- * @param string $string String to check for protocols
- * @return string String with removed protocols
- * @see _bad_protocol()
- * @see _bad_protocol_once()
- * @since PHP4 OOP 0.0.1
- */
- function _bad_protocol_once2($string)
- {
- $string = $this->_decode_entities($string);
- $string = preg_replace('/\s/', '', $string);
- $string = $this->_no_null($string);
- $string = preg_replace('/\xad+/', '', $string); # deals with Opera "feature"
- $string = strtolower($string);
-
- $allowed = false;
- if(is_array($this->allowed_protocols) && count($this->allowed_protocols) > 0)
- {
- foreach ($this->allowed_protocols as $one_protocol)
- {
- if (strtolower($one_protocol) == $string)
- {
- $allowed = true;
- break;
- }
- }
- }
-
- if ($allowed)
- {
- return "$string:";
- }
- else
- {
- return '';
- }
- }
-
- /**
- * This function performs different checks for attribute values.
- *
- * The currently implemented checks are "maxlen", "minlen", "maxval",
- * "minval" and "valueless" with even more checks to come soon.
- *
- * @access private
- * @param string $value The value of the attribute to be checked.
- * @param string $vless Indicates whether the the value is supposed to be valueless
- * @param string $checkname The check to be performed
- * @param string $checkvalue The value that is to be checked against
- * @return bool Indicates whether the check passed or not
- * @since PHP4 OOP 0.0.1
- */
- function _check_attr_val($value, $vless, $checkname, $checkvalue)
- {
- $ok = true;
-
- switch (strtolower($checkname))
- {
- /**
- * The maxlen check makes sure that the attribute value has a length not
- * greater than the given value. This can be used to avoid Buffer Overflows
- * in WWW clients and various Internet servers.
- */
- case 'maxlen':
- if (strlen($value) > $checkvalue)
- {
- $ok = false;
- }
- break;
-
- /**
- * The minlen check makes sure that the attribute value has a length not
- * smaller than the given value.
- */
- case 'minlen':
- if (strlen($value) < $checkvalue)
- {
- $ok = false;
- }
- break;
-
- /**
- * The maxval check does two things: it checks that the attribute value is
- * an integer from 0 and up, without an excessive amount of zeroes or
- * whitespace (to avoid Buffer Overflows). It also checks that the attribute
- * value is not greater than the given value.
- * This check can be used to avoid Denial of Service attacks.
- */
- case 'maxval':
- if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value))
- {
- $ok = false;
- }
- if ($value > $checkvalue)
- {
- $ok = false;
- }
- break;
-
- /**
- * The minval check checks that the attribute value is a positive integer,
- * and that it is not smaller than the given value.
- */
- case 'minval':
- if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value))
- {
- $ok = false;
- }
- if ($value < $checkvalue)
- {
- $ok = false;
- }
- break;
-
- /**
- * The valueless check checks if the attribute has a value
- * (like <a href="blah">) or not (<option selected>). If the given value
- * is a "y" or a "Y", the attribute must not have a value.
- * If the given value is an "n" or an "N", the attribute must have one.
- */
- case 'valueless':
- if (strtolower($checkvalue) != $vless)
- {
- $ok = false;
- }
- break;
-
- }
-
- return $ok;
- }
-
- /**
- * Changes \" to "
- *
- * This function changes the character sequence \" to just "
- * It leaves all other slashes alone. It's really weird, but the quoting from
- * preg_replace(//e) seems to require this.
- *
- * @access private
- * @param string $string The string to be stripped.
- * @return string string stripped of \"
- * @since PHP4 OOP 0.0.1
- */
- function _stripslashes($string)
- {
- return preg_replace('%\\\\"%', '"', $string);
- }
-
- /**
- * helper method for _hair()
- *
- * This function deals with parsing errors in _hair(). The general plan is
- * to remove everything to and including some whitespace, but it deals with
- * quotes and apostrophes as well.
- *
- * @access private
- * @param string $string The string to be stripped.
- * @return string string stripped of whitespace
- * @see _hair()
- * @since PHP4 OOP 0.0.1
- */
- function _html_error($string)
- {
- return preg_replace('/^("[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*/', '', $string);
- }
-
- /**
- * Decodes numeric HTML entities
- *
- * This method decodes numeric HTML entities (A and A). It doesn't
- * do anything with other entities like ä, but we don't need them in the
- * URL protocol white listing system anyway.
- *
- * @access private
- * @param string $value The entitiy to be decoded.
- * @return string Decoded entity
- * @since PHP4 OOP 0.0.1
- */
- function _decode_entities($string)
- {
- $string = preg_replace('/&#([0-9]+);/e', 'chr("\\1")', $string);
- $string = preg_replace('/&#[Xx]([0-9A-Fa-f]+);/e', 'chr(hexdec("\\1"))', $string);
- return $string;
- }
-
- /**
- * Returns PHP4 OOP version # of kses.
- *
- * Since this class has been refactored and documented and proven to work,
- * I'm syncing the version number to procedural kses.
- *
- * @access public
- * @return string Version number
- * @since PHP4 OOP 0.0.1
- */
- function _version()
- {
- return 'PHP4 0.2.2 (OOP fork of procedural kses 0.2.2)';
- }
- }
-
-
-
- }
-?>
\ No newline at end of file diff --git a/vendors/kses/oop/php5.class.kses.php b/vendors/kses/oop/php5.class.kses.php deleted file mode 100644 index 541f1bd1e..000000000 --- a/vendors/kses/oop/php5.class.kses.php +++ /dev/null @@ -1,1172 +0,0 @@ -<?php
-
- /*
- * ==========================================================================================
- *
- * This program is free software and open source software; you can redistribute
- * it and/or modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit
- * http://www.gnu.org/licenses/gpl.html
- *
- * ==========================================================================================
- */
-
- /**
- * Class file for PHP5 OOP version of kses
- *
- * This is an updated version of kses to work with PHP5 that works under E_STRICT.
- *
- * This version is a bit of a rewrite to match my own coding style and use some of the
- * capabilities allowed in PHP5. Since this was a significant rewrite, but it still
- * maintains backward compatibility syntax-wise, the version number is now 1.0.0. Any
- * minor changes that do not break compatibility will be indicated in the second or third
- * digits. Anything that breaks compatibility will change the major version number.
- *
- * PHP5 specific changes:
- * + Private methods are now in place
- * + __construct() is now used rather then the standard class name 'kses()'
- * + Kses will not load in any version less that PHP5
- * Other modifications:
- * + PHPdoc style documentation has been added to the class. See http://www.phpdoc.org/ for more info.
- * + Method names have been changed to reflect status as verbs
- * + One line methods have been folded into the code
- * + Some methods are now deprecated due to nomenclature style change. See method documentation for specifics.
- * + Kses5 now works in E_STRICT
- * + Version number is 1.0.0 to reflect serious code changes
- * + Addition of methods AddProtocols(), filterKsestextHook(), RemoveProtocol(), RemoveProtocols() and SetProtocols()
- * + Deprecated _hook(), Protocols()
- *
- * @package kses
- * @subpackage kses5
- */
-
- if(substr(phpversion(), 0, 1) < 5)
- {
- die("Class kses requires PHP 5 or higher.");
- }
-
- /**
- * Only install KSES5 once
- */
- if(!defined('KSES_CLASS_PHP5'))
- {
- define('KSES_CLASS_PHP5', true);
-
- /**
- * Kses strips evil scripts!
- *
- * This class provides the capability for removing unwanted HTML/XHTML, attributes from
- * tags, and protocols contained in links. The net result is a much more powerful tool
- * than the PHP internal strip_tags()
- *
- * This is a fork of a slick piece of procedural code called 'kses' written by Ulf Harnhammar.
- *
- * The original class for PHP4 was basically a wrapper around all of the functions in
- * the procedural code written by Ulf, and was released 7/25/2003.
- *
- * This version is a bit of a rewrite to match my own coding style and use some of the
- * capabilities allowed in PHP5. Since this was a significant rewrite, but it still
- * maintains backward compatibility syntax-wise, the version number is now 1.0.0. Any
- * minor changes that do not break compatibility will be indicated in the second or third
- * digits. Anything that breaks compatibility will change the major version number.
- *
- * PHP5 specific changes:
- * + Private methods are now in place
- * + __construct() is now used rather then the standard class name 'kses()'
- * + Kses5 will not load in any version less that PHP5
- * Other modifications:
- * + PHPdoc style documentation has been added to the class. See http://www.phpdoc.org/ for more info.
- * + Method names have been changed to reflect status as verbs
- * + One line methods have been folded into the code
- * + Some methods are now deprecated due to nomenclature style change. See method documentation for specifics.
- * + Kses now works in E_STRICT
- * + Initial Version number set to 1.0.0 to reflect serious code changes
- * + Addition of methods AddProtocols(), filterKsestextHook(), RemoveProtocol(), RemoveProtocols() and SetProtocols()
- * + Deprecated _hook(), Protocols()
- * + Integrated code from kses 0.2.2 into class.
- * + Added methods DumpProtocols(), DumpMethods()
- *
- * @author Richard R. Vásquez, Jr. (Original procedural code by Ulf Härnhammar)
- * @link http://sourceforge.net/projects/kses/ Home Page for Kses
- * @link http://chaos.org/contact/ Contact page with current email address for Richard Vasquez
- * @copyright Richard R. Vásquez, Jr. 2005
- * @version PHP5 OOP 1.0.2
- * @license http://www.gnu.org/licenses/gpl.html GNU Public License
- * @package kses
- */
- class kses5
- {
- /**#@+
- * @access private
- * @var array
- */
- private $allowed_protocols;
- private $allowed_html;
- /**#@-*/
-
- /**
- * Constructor for kses.
- *
- * This sets a default collection of protocols allowed in links, and creates an
- * empty set of allowed HTML tags.
- * @since PHP5 OOP 1.0.0
- */
- public function __construct()
- {
- /**
- * You could add protocols such as ftp, new, gopher, mailto, irc, etc.
- *
- * The base values the original kses provided were:
- * 'http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'gopher', 'mailto'
- */
- $this->allowed_protocols = array('http', 'ftp', 'mailto');
- $this->allowed_html = array();
- }
-
- /**
- * Basic task of kses - parses $string and strips it as required.
- *
- * This method strips all the disallowed (X)HTML tags, attributes
- * and protocols from the input $string.
- *
- * @access public
- * @param string $string String to be stripped of 'evil scripts'
- * @return string The stripped string
- * @since PHP4 OOP 0.0.1
- */
- public function Parse($string = "")
- {
- if (get_magic_quotes_gpc())
- {
- $string = stripslashes($string);
- }
- $string = $this->removeNulls($string);
- // Remove JavaScript entities from early Netscape 4 versions
- $string = preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $string);
- $string = $this->normalizeEntities($string);
- $string = $this->filterKsesTextHook($string);
- $string = preg_replace('%(<' . '[^>]*' . '(>|$)' . '|>)%e', "\$this->stripTags('\\1')", $string);
- return $string;
- }
-
- /**
- * Allows for single/batch addition of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * The argument will be processed, and each string will be added
- * via AddProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be added to the internal list of allowed protocols.
- * @return bool Status of adding valid protocols.
- * @see AddProtocol()
- * @since PHP5 OOP 1.0.0
- */
- public function AddProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses5::AddProtocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- foreach($protocol_data as $protocol)
- {
- $this->AddProtocol($protocol);
- }
- return true;
- }
- elseif(is_string($protocol_data))
- {
- $this->AddProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses5::AddProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * Allows for single/batch addition of protocols
- *
- * @deprecated Use AddProtocols()
- * @see AddProtocols()
- * @return bool
- * @since PHP4 OOP 0.0.1
- */
- public function Protocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses5::Protocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- return $this->AddProtocols(func_get_arg(0));
- }
-
- /**
- * Adds a single protocol to $this->allowed_protocols.
- *
- * This method accepts a string argument and adds it to
- * the list of allowed protocols to keep when performing
- * Parse().
- *
- * @access public
- * @param string $protocol The name of the protocol to be added.
- * @return bool Status of adding valid protocol.
- * @since PHP4 OOP 0.0.1
- */
- public function AddProtocol($protocol = "")
- {
- if(!is_string($protocol))
- {
- trigger_error("kses5::AddProtocol() requires a string.", E_USER_WARNING);
- return false;
- }
-
- // Remove any inadvertent ':' at the end of the protocol.
- if(substr($protocol, strlen($protocol) - 1, 1) == ":")
- {
- $protocol = substr($protocol, 0, strlen($protocol) - 1);
- }
-
- $protocol = strtolower(trim($protocol));
- if($protocol == "")
- {
- trigger_error("kses5::AddProtocol() tried to add an empty/NULL protocol.", E_USER_WARNING);
- return false;
- }
-
- // prevent duplicate protocols from being added.
- if(!in_array($protocol, $this->allowed_protocols))
- {
- array_push($this->allowed_protocols, $protocol);
- sort($this->allowed_protocols);
- }
- return true;
- }
-
- /**
- * Removes a single protocol from $this->allowed_protocols.
- *
- * This method accepts a string argument and removes it from
- * the list of allowed protocols to keep when performing
- * Parse().
- *
- * @access public
- * @param string $protocol The name of the protocol to be removed.
- * @return bool Status of removing valid protocol.
- * @since PHP5 OOP 1.0.0
- */
- public function RemoveProtocol($protocol = "")
- {
- if(!is_string($protocol))
- {
- trigger_error("kses5::RemoveProtocol() requires a string.", E_USER_WARNING);
- return false;
- }
-
- // Remove any inadvertent ':' at the end of the protocol.
- if(substr($protocol, strlen($protocol) - 1, 1) == ":")
- {
- $protocol = substr($protocol, 0, strlen($protocol) - 1);
- }
-
- $protocol = strtolower(trim($protocol));
- if($protocol == "")
- {
- trigger_error("kses5::RemoveProtocol() tried to remove an empty/NULL protocol.", E_USER_WARNING);
- return false;
- }
-
- // Ensures that the protocol exists before removing it.
- if(in_array($protocol, $this->allowed_protocols))
- {
- $this->allowed_protocols = array_diff($this->allowed_protocols, array($protocol));
- sort($this->allowed_protocols);
- }
-
- return true;
- }
-
- /**
- * Allows for single/batch removal of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * The argument will be processed, and each string will be removed
- * via RemoveProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be removed from the internal list of allowed protocols.
- * @return bool Status of removing valid protocols.
- * @see RemoveProtocol()
- * @since PHP5 OOP 1.0.0
- */
- public function RemoveProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- foreach($protocol_data as $protocol)
- {
- $this->RemoveProtocol($protocol);
- }
- }
- elseif(is_string($protocol_data))
- {
- $this->RemoveProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses5::RemoveProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * Allows for single/batch replacement of protocols
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * Existing protocols will be removed, then the argument will be
- * processed, and each string will be added via AddProtocol().
- *
- * @access public
- * @param mixed , A string or array of protocols that will be the new internal list of allowed protocols.
- * @return bool Status of replacing valid protocols.
- * @since PHP5 OOP 1.0.1
- * @see AddProtocol()
- */
- public function SetProtocols()
- {
- $c_args = func_num_args();
- if($c_args != 1)
- {
- trigger_error("kses5::SetProtocols() did not receive an argument.", E_USER_WARNING);
- return false;
- }
-
- $protocol_data = func_get_arg(0);
-
- if(is_array($protocol_data) && count($protocol_data) > 0)
- {
- $this->allowed_protocols = array();
- foreach($protocol_data as $protocol)
- {
- $this->AddProtocol($protocol);
- }
- return true;
- }
- elseif(is_string($protocol_data))
- {
- $this->allowed_protocols = array();
- $this->AddProtocol($protocol_data);
- return true;
- }
- else
- {
- trigger_error("kses5::SetProtocols() did not receive a string or an array.", E_USER_WARNING);
- return false;
- }
- }
-
- /**
- * Raw dump of allowed protocols
- *
- * This returns an indexed array of allowed protocols for a particular KSES
- * instantiation.
- *
- * @access public
- * @return array The list of allowed protocols.
- * @since PHP5 OOP 1.0.2
- */
- public function DumpProtocols()
- {
- return $this->allowed_protocols;
- }
-
- /**
- * Raw dump of allowed (X)HTML elements
- *
- * This returns an indexed array of allowed (X)HTML elements and attributes
- * for a particular KSES instantiation.
- *
- * @access public
- * @return array The list of allowed elements.
- * @since PHP5 OOP 1.0.2
- */
- public function DumpElements()
- {
- return $this->allowed_html;
- }
-
-
- /**
- * Adds valid (X)HTML with corresponding attributes that will be kept when stripping 'evil scripts'.
- *
- * This method accepts one argument that can be either a string
- * or an array of strings. Invalid data will be ignored.
- *
- * @access public
- * @param string $tag (X)HTML tag that will be allowed after stripping text.
- * @param array $attribs Associative array of allowed attributes - key => attribute name - value => attribute parameter
- * @return bool Status of Adding (X)HTML and attributes.
- * @since PHP4 OOP 0.0.1
- */
- public function AddHTML($tag = "", $attribs = array())
- {
- if(!is_string($tag))
- {
- trigger_error("kses5::AddHTML() requires the tag to be a string", E_USER_WARNING);
- return false;
- }
-
- $tag = strtolower(trim($tag));
- if($tag == "")
- {
- trigger_error("kses5::AddHTML() tried to add an empty/NULL tag", E_USER_WARNING);
- return false;
- }
-
- if(!is_array($attribs))
- {
- trigger_error("kses5::AddHTML() requires an array (even an empty one) of attributes for '$tag'", E_USER_WARNING);
- return false;
- }
-
- $new_attribs = array();
- if(is_array($attribs) && count($attribs) > 0)
- {
- foreach($attribs as $idx1 => $val1)
- {
- $new_idx1 = strtolower($idx1);
- $new_val1 = $attribs[$idx1];
-
- if(is_array($new_val1) && count($attribs) > 0)
- {
- $tmp_val = array();
- foreach($new_val1 as $idx2 => $val2)
- {
- $new_idx2 = strtolower($idx2);
- $tmp_val[$new_idx2] = $val2;
- }
- $new_val1 = $tmp_val;
- }
-
- $new_attribs[$new_idx1] = $new_val1;
- }
- }
-
- $this->allowed_html[$tag] = $new_attribs;
- return true;
- }
-
- /**
- * This method removes any NULL characters in $string.
- *
- * @access private
- * @param string $string
- * @return string String without any NULL/chr(173)
- * @since PHP4 OOP 0.0.1
- */
- private function removeNulls($string)
- {
- $string = preg_replace('/\0+/', '', $string);
- $string = preg_replace('/(\\\\0)+/', '', $string);
- return $string;
- }
-
- /**
- * Normalizes HTML entities
- *
- * This function normalizes HTML entities. It will convert "AT&T" to the correct
- * "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on.
- *
- * @access private
- * @param string $string
- * @return string String with normalized entities
- * @since PHP4 OOP 0.0.1
- */
- private function normalizeEntities($string)
- {
- # Disarm all entities by converting & to &
- $string = str_replace('&', '&', $string);
-
- # TODO: Change back (Keep?) the allowed entities in our entity white list
-
- # Keeps entities that start with [A-Za-z]
- $string = preg_replace(
- '/&([A-Za-z][A-Za-z0-9]{0,19});/',
- '&\\1;',
- $string
- );
-
- # Change numeric entities to valid 16 bit values
-
- $string = preg_replace(
- '/&#0*([0-9]{1,5});/e',
- '\$this->normalizeEntities16bit("\\1")',
- $string
- );
-
- # Change &XHHHHHHH (Hex digits) to 16 bit hex values
- $string = preg_replace(
- '/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/',
- '&#\\1\\2;',
- $string
- );
-
- return $string;
- }
-
- /**
- * Helper method used by normalizeEntites()
- *
- * This method helps normalizeEntities() to only accept 16 bit values
- * and nothing more for &#number; entities.
- *
- * This method helps normalize_entities() during a preg_replace()
- * where a &#(0)*XXXXX; occurs. The '(0)*XXXXXX' value is converted to
- * a number and the result is returned as a numeric entity if the number
- * is less than 65536. Otherwise, the value is returned 'as is'.
- *
- * @access private
- * @param string $i
- * @return string Normalized numeric entity
- * @see normalizeEntities()
- * @since PHP4 OOP 0.0.1
- */
- private function normalizeEntities16bit($i)
- {
- return (($i > 65535) ? "&#$i;" : "&#$i;");
- }
-
- /**
- * Allows for additional user defined modifications to text.
- *
- * This method allows for additional modifications to be performed on
- * a string that's being run through Parse(). Currently, it returns the
- * input string 'as is'.
- *
- * This method is provided for users to extend the kses class for their own
- * requirements.
- *
- * @access public
- * @param string $string String to perfrom additional modifications on.
- * @return string User modified string.
- * @see Parse()
- * @since PHP5 OOP 1.0.0
- */
- private function filterKsesTextHook($string)
- {
- return $string;
- }
-
- /**
- * Allows for additional user defined modifications to text.
- *
- * @deprecated use filterKsesTextHook()
- * @param string $string
- * @return string
- * @see filterKsesTextHook()
- * @since PHP4 OOP 0.0.1
- */
- private function _hook($string)
- {
- return $this->filterKsesTextHook($string);
- }
-
- /**
- * This method goes through an array, and changes the keys to all lower case.
- *
- * @access private
- * @param array $in_array Associative array
- * @return array Modified array
- * @since PHP4 OOP 0.0.1
- */
- private function makeArrayKeysLowerCase($in_array)
- {
- $out_array = array();
-
- if(is_array($in_array) && count($in_array) > 0)
- {
- foreach ($in_array as $in_key => $in_val)
- {
- $out_key = strtolower($in_key);
- $out_array[$out_key] = array();
-
- if(is_array($in_val) && count($in_val) > 0)
- {
- foreach ($in_val as $in_key2 => $in_val2)
- {
- $out_key2 = strtolower($in_key2);
- $out_array[$out_key][$out_key2] = $in_val2;
- }
- }
- }
- }
-
- return $out_array;
- }
-
- /**
- * This method strips out disallowed and/or mangled (X)HTML tags along with assigned attributes.
- *
- * This method does a lot of work. It rejects some very malformed things
- * like <:::>. It returns an empty string if the element isn't allowed (look
- * ma, no strip_tags()!). Otherwise it splits the tag into an element and an
- * allowed attribute list.
- *
- * @access private
- * @param string $string
- * @return string Modified string minus disallowed/mangled (X)HTML and attributes
- * @since PHP4 OOP 0.0.1
- */
- private function stripTags($string)
- {
- $string = preg_replace('%\\\\"%', '"', $string);
-
- if (substr($string, 0, 1) != '<')
- {
- # It matched a ">" character
- return '>';
- }
-
- if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches))
- {
- # It's seriously malformed
- return '';
- }
-
- $slash = trim($matches[1]);
- $elem = $matches[2];
- $attrlist = $matches[3];
-
- if (
- !isset($this->allowed_html[strtolower($elem)]) ||
- !is_array($this->allowed_html[strtolower($elem)]))
- {
- # Found an HTML element not in the white list
- return '';
- }
-
- if ($slash != '')
- {
- return "<$slash$elem>";
- }
- # No attributes are allowed for closing elements
-
- return $this->stripAttributes("$slash$elem", $attrlist);
- }
-
- /**
- * This method strips out disallowed attributes for (X)HTML tags.
- *
- * This method removes all attributes if none are allowed for this element.
- * If some are allowed it calls combAttributes() to split them further, and then it
- * builds up new HTML code from the data that combAttributes() returns. It also
- * removes "<" and ">" characters, if there are any left. One more thing it
- * does is to check if the tag has a closing XHTML slash, and if it does,
- * it puts one in the returned code as well.
- *
- * @access private
- * @param string $element (X)HTML tag to check
- * @param string $attr Text containing attributes to check for validity.
- * @return string Resulting valid (X)HTML or ''
- * @see combAttributes()
- * @since PHP4 OOP 0.0.1
- */
- private function stripAttributes($element, $attr)
- {
- # Is there a closing XHTML slash at the end of the attributes?
- $xhtml_slash = '';
- if (preg_match('%\s/\s*$%', $attr))
- {
- $xhtml_slash = ' /';
- }
-
- # Are any attributes allowed at all for this element?
- if (
- !isset($this->allowed_html[strtolower($element)]) ||
- count($this->allowed_html[strtolower($element)]) == 0
- )
- {
- return "<$element$xhtml_slash>";
- }
-
- # Split it
- $attrarr = $this->combAttributes($attr);
-
- # Go through $attrarr, and save the allowed attributes for this element
- # in $attr2
- $attr2 = '';
- if(is_array($attrarr) && count($attrarr) > 0)
- {
- foreach ($attrarr as $arreach)
- {
- if(!isset($this->allowed_html[strtolower($element)][strtolower($arreach['name'])]))
- {
- continue;
- }
-
- $current = $this->allowed_html[strtolower($element)][strtolower($arreach['name'])];
-
- if (!is_array($current))
- {
- # there are no checks
- $attr2 .= ' '.$arreach['whole'];
- }
- else
- {
- # there are some checks
- $ok = true;
- if(is_array($current) && count($current) > 0)
- {
- foreach ($current as $currkey => $currval)
- {
- if (!$this->checkAttributeValue($arreach['value'], $arreach['vless'], $currkey, $currval))
- {
- $ok = false;
- break;
- }
- }
- }
-
- if ($ok)
- {
- # it passed them
- $attr2 .= ' '.$arreach['whole'];
- }
- }
- }
- }
-
- # Remove any "<" or ">" characters
- $attr2 = preg_replace('/[<>]/', '', $attr2);
- return "<$element$attr2$xhtml_slash>";
- }
-
- /**
- * This method combs through an attribute list string and returns an associative array of attributes and values.
- *
- * This method does a lot of work. It parses an attribute list into an array
- * with attribute data, and tries to do the right thing even if it gets weird
- * input. It will add quotes around attribute values that don't have any quotes
- * or apostrophes around them, to make it easier to produce HTML code that will
- * conform to W3C's HTML specification. It will also remove bad URL protocols
- * from attribute values.
- *
- * @access private
- * @param string $attr Text containing tag attributes for parsing
- * @return array Associative array containing data on attribute and value
- * @since PHP4 OOP 0.0.1
- */
- private function combAttributes($attr)
- {
- $attrarr = array();
- $mode = 0;
- $attrname = '';
-
- # Loop through the whole attribute list
-
- while (strlen($attr) != 0)
- {
- # Was the last operation successful?
- $working = 0;
-
- switch ($mode)
- {
- case 0: # attribute name, href for instance
- if (preg_match('/^([-a-zA-Z]+)/', $attr, $match))
- {
- $attrname = $match[1];
- $working = $mode = 1;
- $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr);
- }
- break;
- case 1: # equals sign or valueless ("selected")
- if (preg_match('/^\s*=\s*/', $attr)) # equals sign
- {
- $working = 1;
- $mode = 2;
- $attr = preg_replace('/^\s*=\s*/', '', $attr);
- break;
- }
- if (preg_match('/^\s+/', $attr)) # valueless
- {
- $working = 1;
- $mode = 0;
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => '',
- 'whole' => $attrname,
- 'vless' => 'y'
- );
- $attr = preg_replace('/^\s+/', '', $attr);
- }
- break;
- case 2: # attribute value, a URL after href= for instance
- if (preg_match('/^"([^"]*)"(\s+|$)/', $attr, $match)) # "value"
- {
- $thisval = $this->removeBadProtocols($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => $attrname . '="' . $thisval . '"',
- 'vless' => 'n'
- );
- $working = 1;
- $mode = 0;
- $attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr);
- break;
- }
- if (preg_match("/^'([^']*)'(\s+|$)/", $attr, $match)) # 'value'
- {
- $thisval = $this->removeBadProtocols($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => "$attrname='$thisval'",
- 'vless' => 'n'
- );
- $working = 1;
- $mode = 0;
- $attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr);
- break;
- }
- if (preg_match("%^([^\s\"']+)(\s+|$)%", $attr, $match)) # value
- {
- $thisval = $this->removeBadProtocols($match[1]);
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => $thisval,
- 'whole' => $attrname . '="' . $thisval . '"',
- 'vless' => 'n'
- );
- # We add quotes to conform to W3C's HTML spec.
- $working = 1;
- $mode = 0;
- $attr = preg_replace("%^[^\s\"']+(\s+|$)%", '', $attr);
- }
- break;
- }
-
- if ($working == 0) # not well formed, remove and try again
- {
- $attr = preg_replace('/^("[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*/', '', $attr);
- $mode = 0;
- }
- }
-
- # special case, for when the attribute list ends with a valueless
- # attribute like "selected"
- if ($mode == 1)
- {
- $attrarr[] = array(
- 'name' => $attrname,
- 'value' => '',
- 'whole' => $attrname,
- 'vless' => 'y'
- );
- }
-
- return $attrarr;
- }
-
- /**
- * This method removes disallowed protocols.
- *
- * This method removes all non-allowed protocols from the beginning of
- * $string. It ignores whitespace and the case of the letters, and it does
- * understand HTML entities. It does its work in a while loop, so it won't be
- * fooled by a string like "javascript:javascript:alert(57)".
- *
- * @access private
- * @param string $string String to check for protocols
- * @return string String with removed protocols
- * @since PHP4 OOP 0.0.1
- */
- private function removeBadProtocols($string)
- {
- $string = $this->RemoveNulls($string);
- $string = preg_replace('/\xad+/', '', $string); # deals with Opera "feature"
- $string2 = $string . 'a';
-
- while ($string != $string2)
- {
- $string2 = $string;
- $string = preg_replace(
- '/^((&[^;]*;|[\sA-Za-z0-9])*)'.
- '(:|:|&#[Xx]3[Aa];)\s*/e',
- '\$this->filterProtocols("\\1")',
- $string
- );
- }
-
- return $string;
- }
-
- /**
- * Helper method used by removeBadProtocols()
- *
- * This function processes URL protocols, checks to see if they're in the white-
- * list or not, and returns different data depending on the answer.
- *
- * @access private
- * @param string $string String to check for protocols
- * @return string String with removed protocols
- * @see removeBadProtocols()
- * @since PHP4 OOP 0.0.1
- */
- private function filterProtocols($string)
- {
- $string = $this->decodeEntities($string);
- $string = preg_replace('/\s/', '', $string);
- $string = $this->removeNulls($string);
- $string = preg_replace('/\xad+/', '', $string2); # deals with Opera "feature"
- $string = strtolower($string);
-
- if(is_array($this->allowed_protocols) && count($this->allowed_protocols) > 0)
- {
- foreach ($this->allowed_protocols as $one_protocol)
- {
- if (strtolower($one_protocol) == $string)
- {
- return "$string:";
- }
- }
- }
-
- return '';
- }
-
- /**
- * Controller method for performing checks on attribute values.
- *
- * This method calls the appropriate method as specified by $checkname with
- * the parameters $value, $vless, and $checkvalue, and returns the result
- * of the call.
- *
- * This method's functionality can be expanded by creating new methods
- * that would match checkAttributeValue[$checkname].
- *
- * Current checks implemented are: "maxlen", "minlen", "maxval", "minval" and "valueless"
- *
- * @access private
- * @param string $value The value of the attribute to be checked.
- * @param string $vless Indicates whether the the value is supposed to be valueless
- * @param string $checkname The check to be performed
- * @param string $checkvalue The value that is to be checked against
- * @return bool Indicates whether the check passed or not
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValue($value, $vless, $checkname, $checkvalue)
- {
- $ok = true;
- $check_attribute_method_name = 'checkAttributeValue' . ucfirst(strtolower($checkname));
- if(method_exists($this, $check_attribute_method_name))
- {
- $ok = $this->$check_attribute_method_name($value, $checkvalue, $vless);
- }
-
- return $ok;
- }
-
- /**
- * Helper method invoked by checkAttributeValue().
- *
- * The maxlen check makes sure that the attribute value has a length not
- * greater than the given value. This can be used to avoid Buffer Overflows
- * in WWW clients and various Internet servers.
- *
- * @access private
- * @param string $value The value of the attribute to be checked.
- * @param int $checkvalue The maximum value allowed
- * @return bool Indicates whether the check passed or not
- * @see checkAttributeValue()
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValueMaxlen($value, $checkvalue)
- {
- if (strlen($value) > intval($checkvalue))
- {
- return false;
- }
- return true;
- }
-
- /**
- * Helper method invoked by checkAttributeValue().
- *
- * The minlen check makes sure that the attribute value has a length not
- * smaller than the given value.
- *
- * @access private
- * @param string $value The value of the attribute to be checked.
- * @param int $checkvalue The minimum value allowed
- * @return bool Indicates whether the check passed or not
- * @see checkAttributeValue()
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValueMinlen($value, $checkvalue)
- {
- if (strlen($value) < intval($checkvalue))
- {
- return false;
- }
- return true;
- }
-
- /**
- * Helper method invoked by checkAttributeValue().
- *
- * The maxval check does two things: it checks that the attribute value is
- * an integer from 0 and up, without an excessive amount of zeroes or
- * whitespace (to avoid Buffer Overflows). It also checks that the attribute
- * value is not greater than the given value.
- *
- * This check can be used to avoid Denial of Service attacks.
- *
- * @access private
- * @param int $value The value of the attribute to be checked.
- * @param int $checkvalue The maximum numeric value allowed
- * @return bool Indicates whether the check passed or not
- * @see checkAttributeValue()
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValueMaxval($value, $checkvalue)
- {
- if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value))
- {
- return false;
- }
- if (intval($value) > intval($checkvalue))
- {
- return false;
- }
- return true;
- }
-
- /**
- * Helper method invoked by checkAttributeValue().
- *
- * The minval check checks that the attribute value is a positive integer,
- * and that it is not smaller than the given value.
- *
- * @access private
- * @param int $value The value of the attribute to be checked.
- * @param int $checkvalue The minimum numeric value allowed
- * @return bool Indicates whether the check passed or not
- * @see checkAttributeValue()
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValueMinval($value, $checkvalue)
- {
- if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value))
- {
- return false;
- }
- if (intval($value) < ($checkvalue))
- {
- return false;
- }
- return true;
- }
-
- /**
- * Helper method invoked by checkAttributeValue().
- *
- * The valueless check checks if the attribute has a value
- * (like <a href="blah">) or not (<option selected>). If the given value
- * is a "y" or a "Y", the attribute must not have a value.
- *
- * If the given value is an "n" or an "N", the attribute must have one.
- *
- * @access private
- * @param int $value The value of the attribute to be checked.
- * @param mixed $checkvalue This variable is ignored for this test
- * @param string $vless Flag indicating if this attribute is not supposed to have an attribute
- * @return bool Indicates whether the check passed or not
- * @see checkAttributeValue()
- * @since PHP5 OOP 1.0.0
- */
- private function checkAttributeValueValueless($value, $checkvalue, $vless)
- {
- if (strtolower($checkvalue) != $vless)
- {
- return false;
- }
- return true;
- }
-
- /**
- * Decodes numeric HTML entities
- *
- * This method decodes numeric HTML entities (A and A). It doesn't
- * do anything with other entities like ä, but we don't need them in the
- * URL protocol white listing system anyway.
- *
- * @access private
- * @param string $value The entitiy to be decoded.
- * @return string Decoded entity
- * @since PHP4 OOP 0.0.1
- */
- private function decodeEntities($string)
- {
- $string = preg_replace('/&#([0-9]+);/e', 'chr("\\1")', $string);
- $string = preg_replace('/&#[Xx]([0-9A-Fa-f]+);/e', 'chr(hexdec("\\1"))', $string);
- return $string;
- }
-
- /**
- * Returns PHP5 OOP version # of kses.
- *
- * Since this class has been refactored and documented and proven to work,
- * I'm fixing the version number at 1.0.0.
- *
- * This version is syntax compatible with the PHP4 OOP version 0.0.2. Future
- * versions may not be syntax compatible.
- *
- * @access public
- * @return string Version number
- * @since PHP4 OOP 0.0.1
- */
- public function Version()
- {
- return 'PHP5 OOP 1.0.2';
- }
- }
- }
-?>
\ No newline at end of file diff --git a/vendors/kses/oop/test.oop.kses.php b/vendors/kses/oop/test.oop.kses.php deleted file mode 100644 index 8c6e885d8..000000000 --- a/vendors/kses/oop/test.oop.kses.php +++ /dev/null @@ -1,507 +0,0 @@ -<?php
-
- // This is a q&d program that shows some of the results of
- // running KSES. If you have further questions, check the
- // current valid email address at http://chaos.org/contact/
-
- // Make sure we're in a usable PHP environment
- if(substr(phpversion(), 0, 1) < 4)
- {
- define('KSESTEST_VER', 0);
- }
- elseif(substr(phpversion(), 0, 1) >= 5)
- {
- define('KSESTEST_VER', 5);
- }
- else
- {
- define('KSESTEST_VER', 4);
- }
-
- // See if we're in command line or web
- if($_SERVER["DOCUMENT_ROOT"] == "")
- {
- define('KSESTEST_ENV', 'CLI');
- }
- else
- {
- define('KSESTEST_ENV', 'WEB');
- }
-
- if(KSESTEST_VER == 0)
- {
- $message = array(
- "Error: Not using a current version of PHP!",
- "You are using PHP version " . phpversion() . ".",
- "KSES Class version requires PHP4 or better.",
- "KSES test program ending."
- );
-
- displayPage(
- array("title" => "Error running KSES test", "message" => $message)
- );
-
- exit();
- }
-
- $include_file = "php" . KSESTEST_VER . ".class.kses.php";
- if(file_exists($include_file) && is_readable($include_file))
- {
- include_once($include_file);
- }
- else
- {
- $message = array(
- "Error: Unable to find '" . $include_file . "'.",
- "Please check your include path and make sure the file is available.",
- "Path: " . ini_get('include_path')
- );
-
- displayPage(
- array('title' => 'Unable to include ' . $include_file, 'message' => $message)
- );
-
- exit();
- }
-
- $kses_type = "kses" . KSESTEST_VER;
- $myKses = new $kses_type;
-
- $test_text = array();
- $test_text = test1_protocols($myKses);
- $test_text = array_merge($test_text, test1_html($myKses));
- $test_text = array_merge($test_text, test1_kses($myKses));
-
- displayPage(
- array('title' => 'New Test', 'message' => $test_text)
- );
-
- function test1_kses(&$myKses)
- {
- $out = array(output_hr(), "Testing current configuration");
-
- $test_tags = array(
- '<a href="http://www.chaos.org/">www.chaos.org</a>',
- '<a name="X">Short \'a name\' tag</a>',
- '<td colspan="3" rowspan="5">Foo</td>',
- '<td rowspan="2" class="mugwump" style="background-color: rgb(255, 204 204);">Bar</td>',
- '<td nowrap>Very Long String running to 1000 characters...</td>',
- '<td bgcolor="#00ff00" nowrap>Very Long String with a blue background</td>',
- '<a href="proto1://www.foo.com">New protocol test</a>',
- '<img src="proto2://www.foo.com" />',
- '<a href="javascript:javascript:javascript:javascript:javascript:alert(\'Boo!\');">bleep</a>',
- '<a href="proto4://abc.xyz.foo.com">Another new protocol</a>',
- '<a href="proto9://foo.foo.foo.foo.foo.org/">Test of "proto9"</a>',
- '<td width="75">Bar!</td>',
- '<td width="200">Long Cell</td>'
- );
-
- $out_li = array();
- // Keep only allowed HTML from the presumed 'form'.
- foreach($test_tags as $tag)
- {
- $temp = $myKses->Parse($tag);
- $check = ($temp == $tag) ? true : false;
- $text = ($temp == $tag) ? 'pass' : 'fail';
-
- $li_text = output_testresult($check, $text) . output_newline();
- $li_text .= "Input: " . output_translate($tag) . output_newline();
- $li_text .= "Output: " . output_translate($temp);
- if(KSESTEST_ENV == 'CLI')
- {
- $li_text .= output_newline();
- }
-
- array_push($out_li, output_code_wrap($li_text));
- }
-
- $out = array_merge($out, array(output_ul($out_li)));
- array_push($out, output_hr());
- array_push($out, "Testing is now finished.");
- return $out;
- }
-
- function output_code_wrap($text)
- {
- if(KSESTEST_ENV == 'CLI')
- {
- return $text;
- }
- else
- {
- return "<code>\n$text<code>\n";
- }
- }
-
- function output_translate($text)
- {
- if(KSESTEST_ENV == 'CLI')
- {
- return $text;
- }
- else
- {
- return htmlentities($text);
- }
- }
-
- function output_testresult($pass = false, $text = "")
- {
- if(KSESTEST_ENV == 'CLI')
- {
- return '[' . $text . ']';
- }
- else
- {
- if($pass == true)
- {
- return '<span style="color: green;">[' . $text . ']</span>';
- }
- else
- {
- return '<span style="color: red;">[' . $text . ']</span>';
- }
- }
- }
-
- function output_spaces()
- {
- if(KSESTEST_ENV == 'WEB')
- {
- $out = " ";
- }
- else
- {
- $out = " ";
- }
-
- return $out;
- }
-
- function output_newline()
- {
- if(KSESTEST_ENV == 'WEB')
- {
- $out = "<br />\n";
- }
- else
- {
- $out = "\n";
- }
-
- return $out;
- }
-
- function displayPage($data = array())
- {
- $title = ($data['title'] == '') ? 'No title' : $data['title'];
- $message = ($data['message'] == '') ? array('No message') : $data['message'];
-
- $out = "";
-
- foreach($message as $text)
- {
- if(KSESTEST_ENV == 'WEB')
- {
- $header = "\t\t<h1>$title</h1>\n\t\t<hr />\n";
- $out .= "\t\t<p>\n";
- $out .= "\t\t\t$text\n";
- $out .= "\t\t</p>\n";
- }
- else
- {
- $header = "$title\n" . str_repeat('-', 60) . "\n\n";
- $out .= "\t$text\n\n";
- }
- }
-
- if(KSESTEST_ENV == 'WEB')
- {
- echo "<html>\n";
- echo "\t<head>\n";
- echo "\t\t<title>$title</title>\n";
- echo "\t</head>\n";
- echo "\t<body>\n";
- echo $header;
- echo $out;
- echo "\t</body>\n";
- echo "</html>\n";
- }
- else
- {
- echo $header;
- echo $out;
- }
- }
-
- function output_hr()
- {
- if(KSESTEST_ENV == 'WEB')
- {
- return "\t\t\t<hr />\n";
- }
- else
- {
- return str_repeat(60, '-') . "\n";
- }
- }
-
- function output_ul($data = array(), $padding = "")
- {
- if(!is_array($data) || count($data) < 1)
- {
- return "";
- }
-
- $text = "";
- if(KSESTEST_ENV == 'WEB')
- {
- $text = "\t\t\t<ul>\n";
- foreach($data as $li)
- {
- $text .= "\t\t\t\t<li>$li</li>\n";
- }
- $text .= "\t\t\t</ul>\n";
- }
- else
- {
- foreach($data as $li)
- {
- $text .= $padding . " * $li\n";
- }
- }
-
- return $text;
- }
-
- function test1_protocols(&$myKses)
- {
- $default_prots = $myKses->dumpProtocols();
- $out_text = array();
- if(count($default_prots) > 0)
- {
- array_push($out_text, "Initial protocols from KSES" . KSESTEST_VER . ":");
- array_push($out_text, output_ul($default_prots));
- array_push($out_text, output_hr());
- }
-
- $myKses->AddProtocols(array("proto1", "proto2:", "proto3")); // Add a list of protocols
- $myKses->AddProtocols("proto4:"); // Add a single protocol (Note ':' is optional at end)
- $myKses->AddProtocol("proto9", "mystery:", "anarchy");
- $myKses->AddProtocol("alpha", "beta", "gamma:");
-
- $add_protocol = "\t\t\t<ol>\n";
- $add_protocol .= "\t\t\t\t" . '<li>$myKses->AddProtocols(array("proto1", "proto2:", "proto3"));</li>' . "\n";
- $add_protocol .= "\t\t\t\t" . '<li>$myKses->AddProtocols("proto4:");</li>' . "\n";
- $add_protocol .= "\t\t\t\t" . '<li>$myKses->AddProtocols("proto4:");</li>' . "\n";
- $add_protocol .= "\t\t\t\t" . '<li>$myKses->AddProtocol("proto9", "mystery:", "anarchy");</li>' . "\n";
- $add_protocol .= "\t\t\t\t" . '<li>$myKses->AddProtocol("alpha", "beta", "gamma:");</li>' . "\n";
- $add_protocol .= "\t\t\t</ol>\n";
-
- array_push($out_text, $add_protocol);
-
- $new_prots = $myKses->dumpProtocols();
- if(count($new_prots) > 0)
- {
- array_push($out_text, "New protocols from KSES" . KSESTEST_VER . " after using AddProtocol(s):");
- array_push($out_text, output_ul($new_prots));
- array_push($out_text, output_hr());
- }
-
- $myKses->RemoveProtocols(array("mystery", "anarchy:"));
- $myKses->RemoveProtocols("alpha:");
- $myKses->RemoveProtocol("beta:");
- $myKses->RemoveProtocol("gamma");
-
- $remove_protocol = "\t\t\t<ol>\n";
- $remove_protocol .= "\t\t\t\t" . '<li>$myKses->RemoveProtocols(array("mystery", "anarchy:"));</li>' . "\n";
- $remove_protocol .= "\t\t\t\t" . '<li>$myKses->RemoveProtocols("alpha:");</li>' . "\n";
- $remove_protocol .= "\t\t\t\t" . '<li>$myKses->RemoveProtocol("beta:");</li>' . "\n";
- $remove_protocol .= "\t\t\t\t" . '<li>$myKses->RemoveProtocol("gamma");</li>' . "\n";
- $remove_protocol .= "\t\t\t</ol>\n";
- array_push($out_text, $remove_protocol);
-
- $new_prots = $myKses->dumpProtocols();
- if(count($new_prots) > 0)
- {
- array_push($out_text, "Resulting protocols from KSES" . KSESTEST_VER . " after using RemoveProtocol(s):");
- array_push($out_text, output_ul($new_prots));
- array_push($out_text, output_hr());
- }
-
- $myKses->SetProtocols(array("https", "gopher", "news"));
- $set_protocol = "\t\t\t<ol>\n";
- $set_protocol .= "\t\t\t\t" . '<li>$myKses->SetProtocols(array("https", "gopher", "news"));</li>' . "\n";
- $set_protocol .= "\t\t\t</ol>\n";
- array_push($out_text, $set_protocol);
-
- $new_prots = $myKses->dumpProtocols();
- if(count($new_prots) > 0)
- {
- array_push($out_text, "Resulting protocols from KSES" . KSESTEST_VER . " after using SetProtocols:");
- array_push($out_text, output_ul($new_prots));
- array_push($out_text, output_hr());
- }
-
- // Invisible reset
- $myKses->SetProtocols(array("http", "proto1", "proto2", "proto9"));
-
- return $out_text;
- }
-
- function test1_html(&$myKses)
- {
- $out = array();
-
- // Allows <p>|</p> tag
- $myKses->AddHTML("p");
-
- // Allows 'a' tag with href|name attributes,
- // href has minlen of 10 chars, and maxlen of 25 chars
- // name has minlen of 2 chars
- $myKses->AddHTML(
- "a",
- array(
- "href" => array('maxlen' => 25, 'minlen' => 10),
- "name" => array('minlen' => 2)
- )
- );
-
- // Allows 'td' tag with colspan|rowspan|class|style|width|nowrap attributes,
- // colspan has minval of 2 and maxval of 5
- // rowspan has minval of 3 and maxval of 6
- // class has minlen of 1 char and maxlen of 10 chars
- // style has minlen of 10 chars and maxlen of 100 chars
- // width has maxval of 100
- // nowrap is valueless
- $myKses->AddHTML(
- "td",
- array(
- "colspan" => array('minval' => 2, 'maxval' => 5),
- "rowspan" => array('minval' => 3, 'maxval' => 6),
- "class" => array("minlen" => 1, 'maxlen' => 10),
- "width" => array("maxval" => 100),
- "style" => array('minlen' => 10, 'maxlen' => 100),
- "nowrap" => array('valueless' => 'y')
- )
- );
-
- array_push($out, "Modifying HTML Tests:");
- $code_text = "<pre>\n";
- $code_text .= " // Allows <p>|</p> tag\n";
- $code_text .= " \$myKses->AddHTML(\"p\");\n";
- $code_text .= "\n";
- $code_text .= " // Allows 'a' tag with href|name attributes,\n";
- $code_text .= " // href has minlen of 10 chars, and maxlen of 25 chars\n";
- $code_text .= " // name has minlen of 2 chars\n";
- $code_text .= " \$myKses->AddHTML(\n";
- $code_text .= " \"a\",\n";
- $code_text .= " array(\n";
- $code_text .= " \"href\" => array('maxlen' => 25, 'minlen' => 10),\n";
- $code_text .= " \"name\" => array('minlen' => 2)\n";
- $code_text .= " )\n";
- $code_text .= " );\n";
- $code_text .= "\n";
- $code_text .= " // Allows 'td' tag with colspan|rowspan|class|style|width|nowrap attributes,\n";
- $code_text .= " // colspan has minval of 2 and maxval of 5\n";
- $code_text .= " // rowspan has minval of 3 and maxval of 6\n";
- $code_text .= " // class has minlen of 1 char and maxlen of 10 chars\n";
- $code_text .= " // style has minlen of 10 chars and maxlen of 100 chars\n";
- $code_text .= " // width has maxval of 100\n";
- $code_text .= " // nowrap is valueless\n";
- $code_text .= " \$myKses->AddHTML(\n";
- $code_text .= " \"td\",\n";
- $code_text .= " array(\n";
- $code_text .= " \"colspan\" => array('minval' => 2, 'maxval' => 5),\n";
- $code_text .= " \"rowspan\" => array('minval' => 3, 'maxval' => 6),\n";
- $code_text .= " \"class\" => array(\"minlen\" => 1, 'maxlen' => 10),\n";
- $code_text .= " \"width\" => array(\"maxval\" => 100),\n";
- $code_text .= " \"style\" => array('minlen' => 10, 'maxlen' => 100),\n";
- $code_text .= " \"nowrap\" => array('valueless' => 'y')\n";
- $code_text .= " )\n";
- $code_text .= " );\n";
- $code_text .= "</pre>\n";
-
- array_push($out, $code_text);
- array_push($out, output_hr());
- array_push($out, "Net results:");
-
- $out_elems = $myKses->DumpElements();
- if(count($out_elems) > 0)
- {
- //array_push($out, "\t\t\t<ul>\n");
- foreach($out_elems as $tag => $attr_data)
- {
- $out_li_elems = array();
- $elem_text = "(X)HTML element $tag";
- $allow = "";
- if(isset($attr_data) && is_array($attr_data) && count($attr_data) > 0)
- {
- $allow = " allows attribute";
- if(count($attr_data) > 1)
- {
- $allow .= "s";
- }
- $allow .= ":\n";
- }
-
- array_push($out_li_elems, "$elem_text$allow");
-
- $attr_test_li = array();
- if(isset($attr_data) && is_array($attr_data) && count($attr_data) > 0)
- {
- foreach($attr_data as $attr_name => $attr_tests)
- {
- $li_text = $attr_name;
- if(isset($attr_tests) && count($attr_tests) > 0)
- {
- foreach($attr_tests as $test_name => $test_val)
- {
- switch($test_name)
- {
- case "maxlen":
- $li_text .= " - maximum length of '" . $test_val . "' characters";
- break;
- case "minlen":
- $li_text .= " - minimum length of '" . $test_val . "' characters";
- break;
- case "minval":
- $li_text .= " - minimum value of '" . $test_val . "'";
- break;
- case "maxval":
- $li_text .= " - maximum value of '" . $test_val . "'";
- break;
- case "valueless":
- switch(strtolower($test_val))
- {
- case 'n':
- $li_text .= " - must not be valueless";
- break;
- case 'y':
- $li_text .= " - must be valueless";
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
- }
- }
- array_push($attr_test_li, $li_text);
- }
- if(count($attr_test_li) > 0)
- {
- $attr_test_li = output_ul($attr_test_li, " ");
- $out_li_elems = array("$elem_text$allow$attr_test_li");
- }
- }
- $out = array_merge($out, $out_li_elems);
- }
- }
-
- return $out;
- }
-
-?>
\ No newline at end of file |