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MDL-18893 TeX filter - fine tune "def" commands + add some more commands to blacklist (from Kopete).

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Thanks to Mauno Korpelainen and Steve Mayer. Merged from 19_STABLE
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stronk7 2009-04-20 21:25:45 +00:00
parent 8b6f8099ea
commit f6a5c4b0a7
1 changed files with 5 additions and 2 deletions
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7
filter/tex/lib.php
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@ -37,12 +37,15 @@ function tex_filter_get_executable($debug=false) {
function tex_sanitize_formula($texexp) { function tex_sanitize_formula($texexp) {
/// Check $texexp against blacklist (whitelisting could be more complete but also harder to maintain) /// Check $texexp against blacklist (whitelisting could be more complete but also harder to maintain)
$tex_blacklist = array( $tex_blacklist = array(
'include','def','command','loop','repeat','open','toks','output', 'include','command','loop','repeat','open','toks','output',
'input','catcode','name','^^', 'input','catcode','name','^^',
'\def','\edef','\gdef','\xdef',
'\every','\errhelp','\errorstopmode','\scrollmode','\nonstopmode', '\every','\errhelp','\errorstopmode','\scrollmode','\nonstopmode',
'\batchmode','\read','\write','csname','\newhelp','\uppercase', '\batchmode','\read','\write','csname','\newhelp','\uppercase',
'\lowercase','\relax','\aftergroup', '\lowercase','\relax','\aftergroup',
'\afterassignment','\expandafter','\noexpand','\special' '\afterassignment','\expandafter','\noexpand','\special',
'\let', '\futurelet','\else','\fi','\chardef','\makeatletter','\afterground',
'\noexpand','\line','\mathcode','\item','\section','\mbox','\declarerobustcommand'
); );
return str_ireplace($tex_blacklist, 'forbiddenkeyword', $texexp); return str_ireplace($tex_blacklist, 'forbiddenkeyword', $texexp);