├── .gitattributes ├── .gitignore ├── AUTHORS ├── COPYING ├── ChangeLog ├── README ├── TODO ├── docs ├── attribute-value-checks ├── hooks ├── stripping-everything ├── supported-formats └── whitelisted-url-protocols ├── examples ├── filter.php └── test.php ├── kses.php └── oop ├── oop.kses.changelog.txt ├── oop.simple.api.txt ├── php4.class.kses.php ├── php5.class.kses.php └── test.oop.kses.php /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | 4 | # Custom for Visual Studio 5 | *.cs diff=csharp 6 | *.sln merge=union 7 | *.csproj merge=union 8 | *.vbproj merge=union 9 | *.fsproj merge=union 10 | *.dbproj merge=union 11 | 12 | # Standard to msysgit 13 | *.doc diff=astextplain 14 | *.DOC diff=astextplain 15 | *.docx diff=astextplain 16 | *.DOCX diff=astextplain 17 | *.dot diff=astextplain 18 | *.DOT diff=astextplain 19 | *.pdf diff=astextplain 20 | *.PDF diff=astextplain 21 | *.rtf diff=astextplain 22 | *.RTF diff=astextplain 23 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ################# 2 | ## Eclipse 3 | ################# 4 | 5 | *.pydevproject 6 | .project 7 | .metadata 8 | bin/ 9 | tmp/ 10 | *.tmp 11 | *.bak 12 | *.swp 13 | *~.nib 14 | local.properties 15 | .classpath 16 | .settings/ 17 | .loadpath 18 | 19 | # External tool builders 20 | .externalToolBuilders/ 21 | 22 | # Locally stored "Eclipse launch configurations" 23 | *.launch 24 | 25 | # CDT-specific 26 | .cproject 27 | 28 | # PDT-specific 29 | .buildpath 30 | 31 | 32 | ################# 33 | ## Visual Studio 34 | ################# 35 | 36 | ## Ignore Visual Studio temporary files, build results, and 37 | ## files generated by popular Visual Studio add-ons. 38 | 39 | # User-specific files 40 | *.suo 41 | *.user 42 | *.sln.docstates 43 | 44 | # Build results 45 | 46 | [Dd]ebug/ 47 | [Rr]elease/ 48 | x64/ 49 | build/ 50 | [Bb]in/ 51 | [Oo]bj/ 52 | 53 | # MSTest test Results 54 | [Tt]est[Rr]esult*/ 55 | [Bb]uild[Ll]og.* 56 | 57 | *_i.c 58 | *_p.c 59 | *.ilk 60 | *.meta 61 | *.obj 62 | *.pch 63 | *.pdb 64 | *.pgc 65 | *.pgd 66 | *.rsp 67 | *.sbr 68 | *.tlb 69 | *.tli 70 | *.tlh 71 | *.tmp 72 | *.tmp_proj 73 | *.log 74 | *.vspscc 75 | *.vssscc 76 | .builds 77 | *.pidb 78 | *.log 79 | *.scc 80 | 81 | # Visual C++ cache files 82 | ipch/ 83 | *.aps 84 | *.ncb 85 | *.opensdf 86 | *.sdf 87 | *.cachefile 88 | 89 | # Visual Studio profiler 90 | *.psess 91 | *.vsp 92 | *.vspx 93 | 94 | # Guidance Automation Toolkit 95 | *.gpState 96 | 97 | # ReSharper is a .NET coding add-in 98 | _ReSharper*/ 99 | *.[Rr]e[Ss]harper 100 | 101 | # TeamCity is a build add-in 102 | _TeamCity* 103 | 104 | # DotCover is a Code Coverage Tool 105 | *.dotCover 106 | 107 | # NCrunch 108 | *.ncrunch* 109 | .*crunch*.local.xml 110 | 111 | # Installshield output folder 112 | [Ee]xpress/ 113 | 114 | # DocProject is a documentation generator add-in 115 | DocProject/buildhelp/ 116 | DocProject/Help/*.HxT 117 | DocProject/Help/*.HxC 118 | DocProject/Help/*.hhc 119 | DocProject/Help/*.hhk 120 | DocProject/Help/*.hhp 121 | DocProject/Help/Html2 122 | DocProject/Help/html 123 | 124 | # Click-Once directory 125 | publish/ 126 | 127 | # Publish Web Output 128 | *.Publish.xml 129 | *.pubxml 130 | 131 | # NuGet Packages Directory 132 | ## TODO: If you have NuGet Package Restore enabled, uncomment the next line 133 | #packages/ 134 | 135 | # Windows Azure Build Output 136 | csx 137 | *.build.csdef 138 | 139 | # Windows Store app package directory 140 | AppPackages/ 141 | 142 | # Others 143 | sql/ 144 | *.Cache 145 | ClientBin/ 146 | [Ss]tyle[Cc]op.* 147 | ~$* 148 | *~ 149 | *.dbmdl 150 | *.[Pp]ublish.xml 151 | *.pfx 152 | *.publishsettings 153 | 154 | # RIA/Silverlight projects 155 | Generated_Code/ 156 | 157 | # Backup & report files from converting an old project file to a newer 158 | # Visual Studio version. Backup files are not needed, because we have git ;-) 159 | _UpgradeReport_Files/ 160 | Backup*/ 161 | UpgradeLog*.XML 162 | UpgradeLog*.htm 163 | 164 | # SQL Server files 165 | App_Data/*.mdf 166 | App_Data/*.ldf 167 | 168 | ############# 169 | ## Windows detritus 170 | ############# 171 | 172 | # Windows image file caches 173 | Thumbs.db 174 | ehthumbs.db 175 | 176 | # Folder config file 177 | Desktop.ini 178 | 179 | # Recycle Bin used on file shares 180 | $RECYCLE.BIN/ 181 | 182 | # Mac crap 183 | .DS_Store 184 | 185 | 186 | ############# 187 | ## Python 188 | ############# 189 | 190 | *.py[co] 191 | 192 | # Packages 193 | *.egg 194 | *.egg-info 195 | dist/ 196 | build/ 197 | eggs/ 198 | parts/ 199 | var/ 200 | sdist/ 201 | develop-eggs/ 202 | .installed.cfg 203 | 204 | # Installer logs 205 | pip-log.txt 206 | 207 | # Unit test / coverage reports 208 | .coverage 209 | .tox 210 | 211 | #Translations 212 | *.mo 213 | 214 | #Mr Developer 215 | .mr.developer.cfg 216 | -------------------------------------------------------------------------------- /AUTHORS: -------------------------------------------------------------------------------- 1 | kses AUTHORS 2 | ============ 3 | 4 | * Ulf Harnhammar (main coder, project leader) 5 | metaur at users dot sourceforge dot net 6 | http://www.advogato.org/person/metaur/ 7 | 8 | * Richard R. Vásquez, Jr. (coder of object-oriented kses) 9 | contact him via an issue or PR at https://github.com/RichardVasquez/kses 10 | 11 | 12 | THANKS TO 13 | ========= 14 | 15 | * Peter Valach (code review and feature suggestions) 16 | * Simon Cornelius P. Umacob (testing) 17 | * unitedhacker2000@yahoo.com (bug report) 18 | * Dirk Haun (feature suggestion) 19 | * Hendy Irawan (bug report and documentation suggestion) 20 | * dude21 (feature suggestion) 21 | * Christian Bolstad (documentation suggestion) 22 | * GitHub for hosting 23 | 24 | Thanks also go to a lot of people who posted to the Bugtraq and 25 | Webappsec mailing lists about XSS or HTML filters. They gave us some 26 | valuable insights. 27 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc. 5 | 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | 294 | Copyright (C) 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License 307 | along with this program; if not, write to the Free Software 308 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 309 | 310 | 311 | Also add information on how to contact you by electronic and paper mail. 312 | 313 | If the program is interactive, make it output a short notice like this 314 | when it starts in an interactive mode: 315 | 316 | Gnomovision version 69, Copyright (C) year name of author 317 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 318 | This is free software, and you are welcome to redistribute it 319 | under certain conditions; type `show c' for details. 320 | 321 | The hypothetical commands `show w' and `show c' should show the appropriate 322 | parts of the General Public License. Of course, the commands you use may 323 | be called something other than `show w' and `show c'; they could even be 324 | mouse-clicks or menu items--whatever suits your program. 325 | 326 | You should also get your employer (if you work as a programmer) or your 327 | school, if any, to sign a "copyright disclaimer" for the program, if 328 | necessary. Here is a sample; alter the names: 329 | 330 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 331 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 332 | 333 | , 1 April 1989 334 | Ty Coon, President of Vice 335 | 336 | This General Public License does not permit incorporating your program into 337 | proprietary programs. If your program is a subroutine library, you may 338 | consider it more useful to permit linking proprietary applications with the 339 | library. If this is what you want to do, use the GNU Library General 340 | Public License instead of this License. 341 | -------------------------------------------------------------------------------- /ChangeLog: -------------------------------------------------------------------------------- 1 | kses ChangeLog 2 | ============== 3 | 4 | * 0.2.2 and 0.2.2-rc1 5 | 6 | 0.2.2 was released on the 7th of February 2005. We also had a release 7 | candidate, 0.2.2-rc1, that was released on the 30th of January 2005. 8 | 9 | I (Ulf) am sorry for this long delay, but I lost interest in kses for a 10 | while and worked on auditing C/C++ code for buffer overflows and format 11 | string bugs in the Debian Security Audit Project instead 12 | ( http://www.debian.org/security/audit/ ). 13 | 14 | This version has the following changes: 15 | 16 | - Richard contributed an additional object-oriented kses version for 17 | PHP 5, which takes advantage of that PHP version's improved object 18 | orientation. You can find it in the oop/ directory. 19 | 20 | - Richard added RemoveProtocol(), RemoveProtocols() and SetProtocols() 21 | methods to both object-oriented kses versions. This closes SourceForge 22 | bug #892477. 23 | 24 | - Richard also did other smaller changes to the object-oriented kses 25 | versions. See oop/oop.kses.changelog.txt for the gory details. 26 | 27 | - The code that checks whether used elements and attributes are allowed 28 | now uses isset() to avoid notices under certain configurations. This 29 | hopefully closes SourceForge bug #918493. 30 | 31 | - The check for the Opera extra whitespace character #173 was moved so 32 | it only affects attribute values and nothing else. This is helpful for 33 | Asian kses users, who use that character in writing. (This is just a 34 | temporary solution. A better one will show up in the next version, when 35 | the parser is rewritten.) This closes SourceForge bug #834645, kind of. 36 | 37 | - Now the program will not even look at attributes and closing XHTML 38 | slashes for closing HTML elements. This will make kses execute faster 39 | and it won't accept atrocities like
anymore. 40 | 41 | - Moved references in examples/test.php from function calls to the function 42 | definition, making it better PHP. 43 | 44 | - The output of examples/test.php and examples/filter.php now conform fully 45 | to W3C's HTML specification. 46 | 47 | - From now on, kses releases will be distributed both as .tar.gz and .zip 48 | archives to please our Wintendo users. This closes SourceForge feature 49 | request #900380. 50 | 51 | - Changed to new copyright year and paper mail address. 52 | 53 | 54 | * 0.2.1 55 | 56 | 0.2.1 was released on the 29th of September 2003. 57 | It has the following changes: 58 | 59 | 60 | - There is now an additional version of kses, using the object-oriented 61 | paradigm. Thanks a lot to Richard R. Vasquez, Jr., who created it! Anyone 62 | who wants to make functional programming, logical programming or spaghetti 63 | programming versions of kses as well (or any other programming paradigm that 64 | you like), go ahead! All the people who like old procedural programming for 65 | web applications shouldn't despair, though, as both versions will be 66 | maintained with each release. 67 | 68 | - kses now has some new attribute value checks: minlen, minval and valueless. 69 | See docs/attribute-value-checks for an explanation. 70 | 71 | - For some reason, the Opera developers decided to make chr(173) a whitespace 72 | character in URL protocols, both when it occurs raw and in an entity. kses 73 | now handles this. 74 | 75 | - The URL protocol whitelisting system now decodes entities before removing 76 | NULLs and whitespaces. 77 | 78 | 79 | * 0.2.0 80 | 81 | 0.2.0 was released on the 25th of July 2003. 82 | It has the following changes: 83 | 84 | 85 | - kses now supports checking of attribute values, and not just element names 86 | and attribute names. The attribute value checks that exist so far are 87 | 'maxlen' (checks how long attribute values are, to avoid Buffer Overflows) 88 | and 'maxval' (checks how big an integer value is, to avoid Denial of Service 89 | attacks). 90 | 91 | Buffer Overflows could both be a problem for WWW clients and different 92 | servers on the Internet that an HTML document links to. One example is 93 | . 94 | 95 | Denial of Service attacks can take the form of too big sizes of iframes or 96 | other things. One example is