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Implement several template filters

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This commit is contained in:
Kijin Sung 2017-02-22 20:58:37 +09:00
parent 8ad6f40abd
commit 0c20794219
1 changed files with 147 additions and 16 deletions
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163
classes/template/TemplateHandler.class.php
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@ -554,26 +554,127 @@ class TemplateHandler
}
else
{
$escape_option = $this->config->autoescape !== null ? 'auto' : 'noescape';
if(preg_match('@^(.+)\\|((?:no)?escape)$@', $m[1], $mm))
{
$m[1] = $mm[1];
$escape_option = $mm[2];
}
elseif($m[1] === '$content' && preg_match('@/layouts/.+/layout\.html$@', $this->file))
// Get escape options.
if($m[1] === '$content' && preg_match('@/layouts/.+/layout\.html$@', $this->file))
{
$escape_option = 'noescape';
}
$m[1] = self::_replaceVar($m[1]);
switch($escape_option)
else
{
case 'auto':
return "<?php echo (\$this->config->autoescape === 'on' ? htmlspecialchars({$m[1]}, ENT_COMPAT, 'UTF-8', false) : {$m[1]}) ?>";
case 'escape':
return "<?php echo htmlspecialchars({$m[1]}, ENT_COMPAT, 'UTF-8', true) ?>";
case 'noescape':
return "<?php echo {$m[1]} ?>";
$escape_option = $this->config->autoescape !== null ? 'autoescape' : 'noescape';
}
// Separate filters from variable.
if (preg_match('@^(.+?)(?<![|\s])\\|([a-z0-9_].+)$@', $m[1], $mm))
{
$m[1] = $mm[1];
$filters = array_map('trim', explode_with_escape('|', $mm[2]));
}
else
{
$filters = array();
}
// Process the variable.
$var = self::_replaceVar($m[1]);
// Apply filters.
foreach ($filters as $filter)
{
// Separate filter option from the filter name.
if (preg_match('/^([a-z0-9_-]+):(.+)$/', $filter, $matches))
{
$filter = $matches[1];
$filter_option = $matches[2];
if (!self::_isVar($filter_option) && !preg_match("/^'.*'$/", $filter_option) && !preg_match('/^".*"$/', $filter_option))
{
$filter_option = "'" . escape_sqstr($filter_option) . "'";
}
else
{
$filter_option = self::_replaceVar($filter_option);
}
}
else
{
$filter_option = null;
}
// Apply each filter.
switch ($filter)
{
case 'auto':
case 'autoescape':
case 'escape':
case 'noescape':
$escape_option = $filter;
break;
case 'escapejs':
$var = "escape_js({$var})";
break;
case 'json':
$var = "json_encode({$var})";
break;
case 'strip':
case 'strip_tags':
$var = $filter_option ? "strip_tags({$var}, {$filter_option})" : "strip_tags({$var})";
break;
case 'urlencode':
$var = "rawurlencode({$var})";
break;
case 'lower':
$var = "strtolower({$var})";
break;
case 'upper':
$var = "strtoupper({$var})";
break;
case 'nl2br':
$var = $this->_applyEscapeOption($var, $escape_option);
$var = "nl2br({$var})";
$escape_option = 'noescape';
break;
case 'join':
$var = $filter_option ? "implode({$filter_option}, {$var})" : "implode(', ', {$var})";
break;
case 'date':
$var = $filter_option ? "getDisplayDateTime(ztime({$var}), {$filter_option})" : "getDisplayDateTime(ztime({$var}), 'Y-m-d H:i:s')";
break;
case 'format':
case 'number_format':
$var = $filter_option ? "number_format({$var}, {$filter_option})" : "number_format({$var})";
break;
case 'link':
$var = $this->_applyEscapeOption($var, $escape_option);
if ($filter_option)
{
$filter_option = $this->_applyEscapeOption($filter_option, $escape_option);
$var = "'<a href=\"' . {$filter_option} . '\">' . {$var} . '</a>'";
}
else
{
$var = "'<a href=\"' . {$var} . '\">' . {$var} . '</a>'";
}
$escape_option = 'noescape';
break;
default:
$var = "INVALID FILTER ({$filter})";
}
}
// Apply the escape option and return.
return '<?php echo ' . $this->_applyEscapeOption($var, $escape_option) . ' ?>';
}
}
@ -773,6 +874,24 @@ class TemplateHandler
return $m[0];
}
/**
* Apply escape option to an expression.
*/
private function _applyEscapeOption($str, $escape_option)
{
switch($escape_option)
{
case 'escape':
return "htmlspecialchars({$str}, ENT_COMPAT, 'UTF-8', true)";
case 'noescape':
return "{$str}";
case 'auto':
case 'autoescape':
default:
return "(\$this->config->autoescape === 'on' ? htmlspecialchars({$str}, ENT_COMPAT, 'UTF-8', false) : {$str})";
}
}
/**
* change relative path
* @param string $path
@ -810,9 +929,21 @@ class TemplateHandler
return $path;
}
/**
* Check if a string seems to contain a variable.
*
* @param string $str
* @return bool
*/
private static function _isVar($str)
{
return preg_match('@(?<!::|\\\\|(?<!eval\()\')\$([a-z_][a-z0-9_]*)@i', $str) ? true : false;
}
/**
* replace PHP variables of $ character
* Replace PHP variables of $ character
*
* @param string $php
* @return string $__Context->varname
*/