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author | Mike Macgirvin <mike@macgirvin.com> | 2010-09-08 20:14:17 -0700 |
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committer | Mike Macgirvin <mike@macgirvin.com> | 2010-09-08 20:14:17 -0700 |
commit | ffb1997902facb36b78a7cfa522f41f2b3d71cda (patch) | |
tree | e9fe47acf26c5fd2c742677f2610b60d3008eb26 /library/HTMLPurifier/AttrDef/HTML/Color.php | |
parent | b49858b038a0a05bbe7685929e88071d0e125538 (diff) | |
download | volse-hubzilla-ffb1997902facb36b78a7cfa522f41f2b3d71cda.tar.gz volse-hubzilla-ffb1997902facb36b78a7cfa522f41f2b3d71cda.tar.bz2 volse-hubzilla-ffb1997902facb36b78a7cfa522f41f2b3d71cda.zip |
mistpark 2.0 infrasturcture lands
Diffstat (limited to 'library/HTMLPurifier/AttrDef/HTML/Color.php')
-rw-r--r-- | library/HTMLPurifier/AttrDef/HTML/Color.php | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/library/HTMLPurifier/AttrDef/HTML/Color.php b/library/HTMLPurifier/AttrDef/HTML/Color.php new file mode 100644 index 000000000..d01e20454 --- /dev/null +++ b/library/HTMLPurifier/AttrDef/HTML/Color.php @@ -0,0 +1,32 @@ +<?php + +/** + * Validates a color according to the HTML spec. + */ +class HTMLPurifier_AttrDef_HTML_Color extends HTMLPurifier_AttrDef +{ + + public function validate($string, $config, $context) { + + static $colors = null; + if ($colors === null) $colors = $config->get('Core.ColorKeywords'); + + $string = trim($string); + + if (empty($string)) return false; + if (isset($colors[$string])) return $colors[$string]; + if ($string[0] === '#') $hex = substr($string, 1); + else $hex = $string; + + $length = strlen($hex); + if ($length !== 3 && $length !== 6) return false; + if (!ctype_xdigit($hex)) return false; + if ($length === 3) $hex = $hex[0].$hex[0].$hex[1].$hex[1].$hex[2].$hex[2]; + + return "#$hex"; + + } + +} + +// vim: et sw=4 sts=4 |