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<?php
header("Content-type: text/xml");
header("Cache-Control: no-cache, must-revalidate");
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
class COMPARE {
const EXTRA_ITEMS = 1; // Fully OK, items added
const MISSING_ITEMS = 2; // OK. No problems if it is not mistake
const EXTRA_UID = 4; // OK. We may have better description in the new archive.
const MISSING_UID = 8; // Probably not OK. I don't expect there is reason to drop uids. But report a error if names does not match.
const UID_MISTMATCH = 16; // Not OK.
const NAME_MISTMATCH = 32; // Probably OK, we may have renames if uids match.
const MISSING_UID_NAME_MATCH = 64; // OK?
const MISSING_UID_NAME_MISTMATCH = 128;// Not OK
var $code;
function __construct($code) {
$this->code = $code;
}
function Get() {
$code = $this->code;
$uid_mistmatch = $code&(COMPARE::UID_MISTMATCH|COMPARE::MISSING_UID_NAME_MISTMATCH);
$name_mistmatch = $code&COMPARE::NAME_MISTMATCH;
$uids_altered = $code&(COMPARE::EXTRA_UID|COMPARE::MISSING_UID_NAME_MATCH);
if ($uid_mistmatch) $match = "error";
elseif ($code) $match = "warning";
else $match = "ok";
return array(
'match' => $match,
'code' => $code,
'uid_mismatch' => $uid_mistmatch?1:0,
'name_mismatch' => $name_mistmatch?1:0,
'uids_altered' => $uids_altered?1:0,
'extra_items' => ($code&COMPARE::EXTRA_ITEMS)?1:0,
'missing_items' => ($code&COMPARE::MISSING_ITEMS)?1:0,
);
}
static function CompareGroups($new_req, $old_req, $flags = 0) {
$olist = $old_req->GetItemList($flags);
$nlist = $new_req->GetItemList($flags);
$res = 0;
foreach ($olist as $i => $info) {
if (!isset($nlist[$i])) {
$res |= COMPARE::MISSING_ITEMS;
break;
}
if (isset($info['uid'])||isset($nlist[$i]['uid'])) {
if (!isset($info['uid']))
$res |= COMPARE::EXTRA_UID;
else if (!isset($nlist[$i]['uid'])) {
$res |= COMPARE::MISSING_UID;
if (strcmp($info['name'], $nlist[$i]['name']))
$res |= MISSING_UID_NAME_MISTMATCH;
else
$res |= MISSING_UID_NAME_MATCH;
} elseif (strcmp($info['uid'], $nlist[$i]['uid']))
$res |= COMPARE::UID_MISTMATCH;
}
if (strcmp($info['name'], $nlist[$i]['name']))
$res |= NAME_MISTMATCH;
}
if (sizeof($nlist) > sizeof($olist))
$res |= COMPARE::EXTRA_ITEMS;
return new COMPARE($res);
}
}
try {
switch($_GET['target']) {
case "compare_archive":
if (!isset($_GET['archive'])) {
echo "here\n";
$error = translate("Archive is not specified");
break;
}
$props1 = $_GET;
$props2 = $_GET; $props2['db_name'] = $_GET['archive'];
$cmp = COMPARE::CompareGroups(new GROUPRequest($props1), new GROUPRequest($props2));
$info = $cmp->Get();
break;
// case "compare_archvies": two archives of the same database
// case "compare_groups": two arbitrary groups
default:
if (isset($_GET['target'])) $error = translate("Unknown metadata target (%s) is specified", $_GET['target']);
else $error = translate("The metadata target is not specified");
}
} catch (ADEIException $ex) {
$ex->logInfo(NULL, $reader?$reader:new REQUEST());
$error = xml_escape($ex->getInfo());
}
if ($error) echo "<result><Error>$error</Error></result>\n";
else {
$extra = "";
foreach ($info as $prop => $value) {
$extra .= " $prop=\"" . xml_escape($value) . "\"";
}
echo "<result$extra/>\n";
}
?>
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