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use tagwall instead of strip_tags to sanitize RSS content

This commit is contained in:
Andrew Dolgov 2007-05-19 08:34:21 +01:00
parent 9daf4133bf
commit f738aef16d
1 changed files with 35 additions and 1 deletions
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36
functions.php
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@ -48,6 +48,12 @@
require_once "magpierss/rss_fetch.inc";
require_once 'magpierss/rss_utils.inc';
include_once "tw/tw-config.php";
include_once "tw/tw.php";
include_once TW_SETUP . "paranoya.php";
$tw_parser = new twParser();
function _debug($msg) {
$ts = strftime("%H:%M:%S", time());
print "[$ts] $msg\n";
@ -2650,11 +2656,39 @@
}
}
// http://ru2.php.net/strip-tags
function strip_tags_long($textstring, $allowed){
while($textstring != strip_tags($textstring, $allowed))
{
while (strlen($textstring) != 0)
{
if (strlen($textstring) > 1024) {
$otherlen = 1024;
} else {
$otherlen = strlen($textstring);
}
$temptext = strip_tags(substr($textstring,0,$otherlen), $allowed);
$safetext .= $temptext;
$textstring = substr_replace($textstring,'',0,$otherlen);
}
$textstring = $safetext;
}
return $textstring;
}
function sanitize_rss($link, $str, $force_strip_tags = false) {
$res = $str;
if (get_pref($link, "STRIP_UNSAFE_TAGS") || $force_strip_tags) {
$res = strip_tags($res, "<p><a><i><em><b><strong><blockquote><br><img>");
global $tw_parser;
global $tw_paranoya_setup;
$res = $tw_parser->strip_tags($res, $tw_paranoya_setup);
// $res = preg_replace("/\r\n|\n|\r/", "", $res);
// $res = strip_tags_long($res, "<p><a><i><em><b><strong><blockquote><br><img><div><span>");
}
return $res;