141 lines
3.8 KiB
PHP
141 lines
3.8 KiB
PHP
<?php
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function checkAuth($user, $password, $credentials, $mode)
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{
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if ($mode === "NO_AUTH") {
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return true;
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}
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if (!isset($credentials[$user])) {
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return false;
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}
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return $credentials[$user] === $password;
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}
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$credentials = [];
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$mode = "NO_AUTH";
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if (getenv("RKC_USER") !== false) {
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$mode = "SINGLE_AUTH";
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$credentials[getenv("RKC_USER")] = getenv("RKC_PASS");
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}
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foreach (getenv() as $k => $v) {
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if (preg_match("/^RKC_USER_(.*)$/", $k, $m)) {
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if ($mode === "SINGLE_AUTH") {
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header("HTTP/1.0 500 Internal Server Error");
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echo "single auth and multi auth is used at the same time";
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exit();
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}
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$mode = "MULTI_AUTH";
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$u = $m[1];
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if (!preg_match("/^[a-zA-Z0-9_-]+$/", $k)) {
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header("HTTP/1.0 500 Internal Server Error");
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echo "invalid username, only a-zA-Z0-9 and _- are allowed";
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exit();
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}
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$credentials[strtolower($u)] = $v;
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}
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}
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if ($_SERVER["REQUEST_METHOD"] === "POST") {
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if (
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checkAuth(
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strtolower($_SERVER["PHP_AUTH_USER"] ?? null),
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$_SERVER["PHP_AUTH_PW"] ?? null,
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$credentials,
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$mode
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) === false
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) {
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header('WWW-Authenticate: Basic realm="RKC"');
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header("HTTP/1.0 401 Unauthorized");
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echo "You are not authorized to access this page.";
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exit();
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}
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$fileName = $_SERVER["PHP_AUTH_USER"] . ".json";
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$resticData = file_get_contents("php://input");
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$resticData = explode("\n", $resticData);
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if (count($resticData) <= 1) {
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exit();
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}
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$backups = [];
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foreach ($resticData as $snapshot) {
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if (
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!preg_match(
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"/^(?<id>[a-z0-9]{8}) +(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2}) +(?<hour>\d{2}):+(?<minute>\d{2}):+(?<second>\d{2}) +(?<host>[^ ]+) +(?<path>[^ ]+).*/",
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$snapshot,
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$m
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)
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) {
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continue;
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}
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$backupName = $m["host"] . "|" . $m["path"];
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if (!isset($backups[$backupName])) {
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$backups[$backupName] = 0;
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}
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$backupTime = mktime(
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$m["hour"],
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$m["minute"],
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$m["second"],
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$m["month"],
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$m["day"],
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$m["year"]
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);
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if ($backupTime > $backups[$backupName]) {
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$backups[$backupName] = $backupTime;
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}
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}
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ksort($backups);
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file_put_contents(
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"/var/www/data/$fileName",
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json_encode($backups, JSON_UNESCAPED_SLASHES + JSON_PRETTY_PRINT)
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);
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exit();
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}
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if ($mode === "NO_AUTH") {
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$fileName = "backups.json";
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} else {
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$fileName = $_GET["user"];
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if (!isset($credentials[$fileName])) {
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header("HTTP/1.0 404 Not Found");
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echo "user not found";
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exit();
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}
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$fileName .= ".json";
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}
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header("Content-Type: text/plain");
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$maxAge = isset($_GET["maxage"]) ? intval($_GET["maxage"]) : 28;
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$maxAge = $maxAge * 60 * 60;
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$backups = json_decode(file_get_contents("/var/www/data/$fileName"), true);
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echo "BACKUP|HOST|PATH|STATUS\n";
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foreach ($backups as $backupName => $backupTime) {
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echo "BACKUP|$backupName|";
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if ($backupTime + $maxAge < time()) {
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echo "TOO_OLD";
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} else {
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echo "OK";
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}
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echo "\n";
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}
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$byHost = [];
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foreach ($backups as $backupName => $backupTime) {
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$backupName = explode("|", $backupName);
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$host = $backupName[0];
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$path = $backupName[1];
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if (!isset($byHost[$host])) {
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$byHost[$host] = PHP_INT_MAX;
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}
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$byHost[$host] = min($backupTime, $byHost[$host]);
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}
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echo "\nBACKUP|HOST|STATUS\n";
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foreach ($byHost as $host => $latest) {
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echo "BACKUP|$host|";
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if ($latest + $maxAge < time()) {
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echo "TOO_OLD";
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} else {
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echo "OK";
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}
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echo "\n";
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}
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