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[2.1.0] Fix some minor DirectLex bugs that may lead to PHP errors

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1310 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2007-07-05 21:29:07 +00:00
parent 626b2a13c8
commit e7e81c0a5b
3 changed files with 41 additions and 5 deletions
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23
library/HTMLPurifier/Lexer/DirectLex.php
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@@ -150,6 +150,14 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
// We are in tag and it is well formed
// Grab the internals of the tag
$strlen_segment = $position_next_gt - $cursor;
if ($strlen_segment < 1) {
// there's nothing to process!
$token = new HTMLPurifier_Token_Text('<');
$cursor++;
continue;
}
$segment = substr($html, $cursor, $strlen_segment);
// Check if it's a comment
@@ -372,6 +380,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
$value = $quoted_value;
}
}
if ($value === false) $value = '';
return array($key => $value);
}
@@ -386,7 +395,6 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
// infinite loop protection
$loops = 0;
while(true) {
// infinite loop protection
@@ -400,7 +408,6 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
}
$cursor += ($value = strspn($string, $this->_whitespace, $cursor));
// grab the key
$key_begin = $cursor; //we're currently at the start of the key
@@ -436,6 +443,11 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
$cursor++;
$cursor += strspn($string, $this->_whitespace, $cursor);
if ($cursor === false) {
$array[$key] = '';
break;
}
// we might be in front of a quote right now
$char = @$string[$cursor];
@@ -453,7 +465,14 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
$value_end = $cursor;
}
// we reached a premature end
if ($cursor === false) {
$cursor = $size;
$value_end = $cursor;
}
$value = substr($string, $value_begin, $value_end - $value_begin);
if ($value === false) $value = '';
$array[$key] = $this->parseData($value);
$cursor++;