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<?php
define('RE_TEXT_LINE_CLEANER', '/["\p{C}\p{Zl}\p{Zp}]+/u');
define('RE_IDENTIFIER_CLEANER', '/[^a-zA-Z0-9_]+/');
define('RE_LANG_IDENT_CLEANER', '/[^a-zA-Z\/\_-]+/');
define('RE_RELPATH_CLEANER', '/[^a-zA-Z0-9_\/-]+/'); // Never put \. in this regex
function sanitize($arg_array, $arg_key, $replace_chars_re, $default_value) {
//FIXME : should check string type and strlen !
if ( ! array_key_exists($arg_key, $arg_array) ) return $default_value;
return preg_replace($replace_chars_re, '_', $arg_array[$arg_key]);
}
function sanitize_ini($ini_path, $array_entry_props) {
$array_ini = parse_ini_file($ini_path);
if ( is_array($array_ini) ) {
// Sanitize any existing ini entries. Destroy unwanted ones.
foreach ( $array_ini as $k => $v ) {
if ( array_key_exists($k, $array_entry_props)
&& array_key_exists('replace_chars_re', $array_entry_props[$k])
&& array_key_exists('default_value', $array_entry_props[$k])
) {
$array_ini[$k] = sanitize($array_ini, $k,
$array_entry_props[$k]['replace_chars_re'],
$array_entry_props[$k]['default_value'] );
} else {
unset($array_ini[$k]);
}
}
// Set default value for all missing ini entries (if default value exists)
foreach ( $array_entry_props as $k => $v ) {
if ( !array_key_exists($k, $array_ini) && array_key_exists('default_value', $array_entry_props[$k]) ) {
$array_ini[$k] = $array_entry_props[$k]['default_value'];
}
}
}
return $array_ini;
}
function load_ini_site_conf($ini_path) {
$sanitize_site_conf = array(
'site_admin_lang' => array( 'replace_chars_re' => RE_LANG_IDENT_CLEANER, 'default_value' => 'C' ),
'site_default_page' => array( 'replace_chars_re' => RE_RELPATH_CLEANER, 'default_value' => 'en/index' ),
);
return sanitize_ini($ini_path, $sanitize_site_conf);
}
function load_ini_page_props($page) {
$sanitize_page_props = array(
//FIXME : title regex : all but html special chars ?
'page_template' => array( 'replace_chars_re' => RE_IDENTIFIER_CLEANER, 'default_value' => 'default' ),
'page_layout' => array( 'replace_chars_re' => RE_IDENTIFIER_CLEANER, 'default_value' => 'article' ),
'page_title' => array( 'replace_chars_re' => RE_TEXT_LINE_CLEANER, 'default_value' => '(missing)' ),
'page_description' => array( 'replace_chars_re' => RE_TEXT_LINE_CLEANER, 'default_value' => '(missing)' ),
'page_keywords' => array( 'replace_chars_re' => RE_TEXT_LINE_CLEANER, 'default_value' => '(missing)' ),
);
$ini_path="content/$page/props.ini";
return sanitize_ini($ini_path, $sanitize_page_props);
}
function l10n_init($lang) {
setlocale(LC_MESSAGES, "$lang.utf8");
$base = bindtextdomain('editablesite', './locale');
$domain = textdomain('editablesite');
bind_textdomain_codeset('editablesite', 'UTF-8');
//echo "<pre>l10n file is '$base/$lang.utf8/LC_MESSAGES/$domain.mo'</pre>\n";
}
function need_auth() {
session_start();
if ( ! array_key_exists('auth_user', $_SESSION) || $_SESSION['auth_user'] !== TRUE ) {
$_SESSION['auth_return'] = $_SERVER['REQUEST_URI'];
header('Location: auth.php');
exit();
}
}
function is_ress($kind, $path) {
switch ($kind) {
case 'page': return ( is_dir($path) && is_file($path.'/props.ini') );
case 'media': return ( substr($path, -4)=='.jpg' && is_file($path) );
default : return FALSE;
}
}
function strcmp_tree($a,$b) {
if (is_array($a) || is_array($b) ) return 0;
return strnatcasecmp($a,$b);
}
function find_all($path, $kind) {
$result=array();
if ( $handle = opendir($path) ) {
while (FALSE !== ($entry = readdir($handle))) {
if ( array_search($entry, array('.','..')) !== FALSE ) continue;
$childpath=$path.'/'.$entry;
if ( is_ress($kind, $childpath) ) $result[] = $entry;
else if ( is_dir($childpath) ) $result[$entry]=find_all($childpath,$kind);
}
closedir($handle);
}
uasort($result, 'strcmp_tree');
return $result;
}
function php_array_to_tree($page_tree, $node_cb, $leaf_cb='', $path='', $itemid="item-0") {
if ( ! is_array($page_tree) ) return;
echo "<ul>\n";
foreach ($page_tree as $k => $v) {
if ( is_numeric($k) ) {
// Leaf
if ( strlen($leaf_cb) > 0 ) {
echo '<li><a href="javascript:' . $leaf_cb . "('$path$v');" . '">' . $v . '</a></li>' . "\n";
} else {
echo "<li>$v</li>\n";
}
} else {
// Node
// Increment $itemid last component
// "1-1-2-1" will come "1-1-2-2"
$tmp = explode('-', $itemid);
array_push($tmp, array_pop($tmp) + 1);
$itemid = implode('-', $tmp);
$tmp=null;
/// Write the node
echo "<li>\n";
echo '<input type="checkbox" checked="checked" id="' . $itemid . '">' . "\n";
echo '<label for="' . $itemid . '">';
if ( strlen($node_cb) > 0 ) {
echo '<a href="javascript:' . $node_cb . "('$path$k');" . '">' . $k . '</a>';
} else {
echo $k;
}
echo "</label>\n";
// Recursively build the tree below the node
php_array_to_tree($v, $node_cb, $leaf_cb, $path.$k.'/', $itemid."-0");
echo "</li>\n";
}
}
echo "</ul>\n";
}
function safe_put_file($path, $content) {
//FIXME : if exists, then mktemp, put in it then rm and mv. Right preservation problems ?
$res=FALSE;
if ($handle = fopen($path, 'w')) {
$res = fwrite($handle, $content);
fclose($handle);
}
return $res;
}
function _write_ini_file_r(&$content, $assoc_arr, $has_sections)
{
foreach ($assoc_arr as $key => $val) {
if (is_array($val)) {
if($has_sections) {
$content .= "[$key]\n";
_write_ini_file_r($content, $val, false);
} else {
foreach($val as $iKey => $iVal) {
if (is_int($iKey))
$content .= $key ."[] = $iVal\n";
else
$content .= $key ."[$iKey] = $iVal\n";
}
}
} else {
if ( preg_match(RE_IDENTIFIER_CLEANER,$val)===1 ) {
// Need to quote the value
$content .= "$key = \"" . str_replace('"', '', $val) . "\"\n";
} else {
// No need to quote
$content .= "$key = $val\n";
}
}
}
}
function write_ini_file($assoc_arr, $path, $has_sections) {
$res=FALSE;
$content = '';
_write_ini_file_r($content, $assoc_arr, $has_sections);
if (is_string($content) && strlen($content) > 0) {
//TODO : check if produced ini is readable again !
$res = safe_put_file($path, $content);
}
return $res;
}
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