Add files via upload

check_unique.php

@@ -0,0 +1,58 @@
+<?php
+header('Content-Type: application/json');
+
+$new_id = $_GET['id'] ?? '';
+$new_callsign = $_GET['callsign'] ?? '';
+
+$response = [
+    'idExists' => false,
+    'callsignExists' => false,
+    'idInvalid' => false,
+    'callsignInvalid' => false,
+];
+
+// Валидация ID
+if (!preg_match('/^\d{6,7}$/', $new_id)) {
+    $response['idInvalid'] = true;
+}
+
+// Валидация позывного
+if (!preg_match('/^[A-Z0-9]{4,7}$/', $new_callsign)) {
+    $response['callsignInvalid'] = true;
+}
+
+// Проверка в db.json
+$dbPath = __DIR__ . '/db.json';
+if (file_exists($dbPath)) {
+    $json = json_decode(file_get_contents($dbPath), true);
+    foreach ($json as $entry) {
+        if (isset($entry['id']) && $entry['id'] == $new_id) {
+            $response['idExists'] = true;
+        }
+        if (isset($entry['callsign']) && strcasecmp($entry['callsign'], $new_callsign) === 0) {
+            $response['callsignExists'] = true;
+        }
+    }
+}
+
+// Проверка в dmrid.dat
+$dmrPath = __DIR__ . '/dmrid.dat';
+if (file_exists($dmrPath)) {
+    $lines = file($dmrPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        $parts = explode(';', $line);
+        if (count($parts) >= 2) {
+            $id = trim($parts[0]);
+            $cs = trim($parts[1]);
+
+            if ($id === $new_id) {
+                $response['idExists'] = true;
+            }
+            if (strcasecmp($cs, $new_callsign) === 0) {
+                $response['callsignExists'] = true;
+            }
+        }
+    }
+}
+
+echo json_encode($response);