From 397522edcb109b6d1bf42380ba50912f5f982314 Mon Sep 17 00:00:00 2001
From: Subhodip Ghosh <suvodip@siliconpin.com>
Date: Tue, 27 Jan 2026 11:43:43 +0530
Subject: [PATCH] update schema validator

---
 .hta_config/conf.php                  | 22 ++++++-
 .hta_slug/dns-tools-get-a-record.php  |  5 ++
 .hta_slug/location-ip-to-location.php |  7 ++-
 .hta_slug/schema-validator.php        | 87 +++++++++++++++++++++++++++
 4 files changed, 118 insertions(+), 3 deletions(-)
 create mode 100644 .hta_slug/schema-validator.php

diff --git a/.hta_config/conf.php b/.hta_config/conf.php
index 4c7b4fb..fdad10f 100644
--- a/.hta_config/conf.php
+++ b/.hta_config/conf.php
@@ -1,2 +1,22 @@
 <?php
-define('SITE_NAME', 'Tools');
+/**
+ * Global API Headers Configuration
+ */
+
+$API_HEADERS = [
+    'Content-Type: application/json; charset=utf-8',
+    'Access-Control-Allow-Origin: *',
+    'Access-Control-Allow-Methods: GET, POST, OPTIONS',
+    'Access-Control-Allow-Headers: Content-Type, Authorization',
+    'X-Powered-By: SiliconPin Tools'
+];
+
+/**
+ * Apply headers helper
+ */
+function applyApiHeaders(array $headers)
+{
+    foreach ($headers as $header) {
+        header($header);
+    }
+}
diff --git a/.hta_slug/dns-tools-get-a-record.php b/.hta_slug/dns-tools-get-a-record.php
index d64f8a4..5f4e1b5 100644
--- a/.hta_slug/dns-tools-get-a-record.php
+++ b/.hta_slug/dns-tools-get-a-record.php
@@ -1,4 +1,9 @@
 <?php
+header('Content-Type: application/json; charset=utf-8');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: GET, POST, OPTIONS');
+header('Access-Control-Allow-Headers: Content-Type, Authorization');
+header('X-Powered-By: SiliconPin Tools');
 /**
  * DNS A Record Lookup API
  * Endpoint: /dns-tools-get-a-record
diff --git a/.hta_slug/location-ip-to-location.php b/.hta_slug/location-ip-to-location.php
index 5f90f39..1791fe7 100644
--- a/.hta_slug/location-ip-to-location.php
+++ b/.hta_slug/location-ip-to-location.php
@@ -1,6 +1,9 @@
 <?php
-// ❌ No header() here
-
+header('Content-Type: application/json; charset=utf-8');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: GET, POST, OPTIONS');
+header('Access-Control-Allow-Headers: Content-Type, Authorization');
+header('X-Powered-By: SiliconPin Tools');
 require_once __DIR__ . '/../.hta_lib/maxmind-db-reader/autoload.php';
 
 use MaxMind\Db\Reader;
diff --git a/.hta_slug/schema-validator.php b/.hta_slug/schema-validator.php
new file mode 100644
index 0000000..d73a7b7
--- /dev/null
+++ b/.hta_slug/schema-validator.php
@@ -0,0 +1,87 @@
+<?php
+header('Content-Type: application/json; charset=utf-8');
+
+$input = json_decode(file_get_contents("php://input"), true);
+$url = $input['url'] ?? null;
+
+$response = [
+  "success" => false,
+  "detected" => [],
+  "errors" => [],
+  "warnings" => [],
+  "info" => []
+];
+
+if (!$url || !filter_var($url, FILTER_VALIDATE_URL)) {
+  $response['errors'][] = "Valid URL required";
+  echo json_encode($response);
+  exit;
+}
+
+/* fetch html */
+$ch = curl_init($url);
+curl_setopt_array($ch, [
+  CURLOPT_RETURNTRANSFER => true,
+  CURLOPT_FOLLOWLOCATION => true,
+  CURLOPT_TIMEOUT => 20,
+  CURLOPT_USERAGENT => 'SchemaValidatorBot/1.0',
+  CURLOPT_ENCODING => '' // gzip support
+]);
+
+$html = curl_exec($ch);
+curl_close($ch);
+
+if (!$html) {
+  $response['errors'][] = "Failed to fetch URL";
+  echo json_encode($response);
+  exit;
+}
+
+/* extract JSON-LD */
+preg_match_all(
+  '/<script[^>]+type=["\']application\/ld\+json["\'][^>]*>(.*?)<\/script>/is',
+  $html,
+  $matches
+);
+
+if (empty($matches[1])) {
+  $response['warnings'][] = "No schema found in initial HTML";
+
+  // heuristic for SPA
+  if (
+    stripos($html, '__NEXT_DATA__') !== false ||
+    stripos($html, 'id="root"') !== false ||
+    stripos($html, 'data-reactroot') !== false
+  ) {
+    $response['info'][] =
+      "This site appears to be client-side rendered. Schema may exist but cannot be validated using PHP-only.";
+  }
+
+  echo json_encode($response, JSON_PRETTY_PRINT);
+  exit;
+}
+
+/* analyze schemas */
+foreach ($matches[1] as $schema) {
+  $json = json_decode($schema, true);
+
+  if (json_last_error() !== JSON_ERROR_NONE) {
+    $response['errors'][] = json_last_error_msg();
+    continue;
+  }
+
+  if (isset($json['@type'])) {
+    $response['detected'][] = $json['@type'];
+  } elseif (isset($json[0])) {
+    foreach ($json as $item) {
+      if (isset($item['@type'])) {
+        $response['detected'][] = $item['@type'];
+      }
+    }
+  }
+}
+
+$response['detected'] = array_values(array_unique($response['detected']));
+$response['success'] = empty($response['errors']);
+
+echo json_encode($response, JSON_PRETTY_PRINT);