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<?php
/*
* Template Variable Data Source @Bindings
* Created by Raymond Irving Feb, 2005
*/
global $BINDINGS; // Array of supported bindings. must be upper case
$BINDINGS = array (
'FILE',
'CHUNK',
'DOCUMENT',
'SELECT',
'EVAL',
'INHERIT',
'DIRECTORY'
);
function ProcessTVCommand($value, $name = '', $docid= '') {
global $modx;
$etomite = & $modx;
$docid= intval($docid) ? intval($docid) : $modx->documentIdentifier;
$nvalue = trim($value);
if (substr($nvalue, 0, 1) != '@')
return $value;
else {
list ($cmd, $param) = ParseCommand($nvalue);
$cmd = trim($cmd);
switch ($cmd) {
case "FILE" :
$output = ProcessFile($param);
break;
case "CHUNK" : // retrieve a chunk and process it's content
$chunk = $modx->getChunk($param);
$output = $chunk;
break;
case "DOCUMENT" : // retrieve a document and process it's content
$rs = $modx->getDocument($param);
if (is_array($rs))
$output = $rs['content'];
else
$output = "Unable to locate document $param";
break;
case "SELECT" : // selects a record from the cms database
$rt = array ();
$replacementVars = array (
'DBASE' => $modx->db->config['dbase'],
'PREFIX' => $modx->db->config['table_prefix']
);
foreach ($replacementVars as $rvKey => $rvValue) {
$modx->setPlaceholder($rvKey, $rvValue);
}
$param = $modx->mergePlaceholderContent($param);
$rs = $modx->db->query("SELECT $param;");
$output = $rs;
break;
case "EVAL" : // evaluates text as php codes return the results
$output = eval ($param);
break;
case "INHERIT" :
$output = $param; // Default to param value if no content from parents
$doc = $modx->getDocument($docid, 'id,parent');
while ($doc['parent'] != 0) {
$parent_id = $doc['parent'];
if ($doc = $modx->getDocument($parent_id, 'id,parent')) {
$tv = $modx->getTemplateVar($name, '*', $doc['id']);
if ((string) $tv['value'] !== '' && substr($tv['value'], 0, 1) != '@') {
$output = (string) $tv['value'];
break 2;
}
} else {
// Get unpublished document
$doc = $modx->getDocument($parent_id, 'id,parent', 0);
}
}
break;
case 'DIRECTORY' :
$files = array ();
$path = $modx->config['base_path'] . $param;
if (substr($path, -1, 1) != '/') {
$path .= '/';
}
if (!is_dir($path)) {
die($path);
break;
}
$dir = dir($path);
while (($file = $dir->read()) !== false) {
if (substr($file, 0, 1) != '.') {
$files[] = "{$file}=={$param}{$file}";
}
}
asort($files);
$output = implode('||', $files);
break;
default :
$output = $value;
break;
}
// support for nested bindings
return is_string($output) && ($output != $value) ? ProcessTVCommand($output, $name, $docid) : $output;
}
}
function ProcessFile($file) {
// get the file
if (file_exists($file) && @ $handle = fopen($file, "r")) {
$buffer = "";
while (!feof($handle)) {
$buffer .= fgets($handle, 4096);
}
fclose($handle);
} else {
$buffer = " Could not retrieve document '$file'.";
}
return $buffer;
}
// ParseCommand - separate @ cmd from params
function ParseCommand($binding_string) {
global $BINDINGS;
$match = array ();
$regexp= '/@(' . implode('|', $BINDINGS) . ')\s*(.*)/im'; // Split binding on whitespace
if (preg_match($regexp, $binding_string, $match)) {
// We can't return the match array directly because the first element is the whole string
$binding_array = array (
strtoupper($match[1]),
$match[2]
); // Make command uppercase
return $binding_array;
}
}
?>