Changeset 787 for trunk

Timestamp:

Mar 16, 2023 2:37:04 AM (14 months ago)

Author:

anonymous

Message:

Update getHttpHeader() to support redirection

File:

• trunk/lib/Utilities.inc.php (modified) (3 diffs)

trunk/lib/Utilities.inc.php

@@ -1720 +1720 @@
 * @since    28 Oct 2020 20:00:36
 */
-function getHttpHeader($url, $key, Array $valid_response_codes=[200])
-{
-    $headers = @get_headers($url, 1);
-
-    if ($headers && preg_match(sprintf('/\b(%s)\b/', join('|', $valid_response_codes)), $headers[0])) {
+function getHttpHeader($url, $key=null, Array $valid_response_codes=[200], $method='GET')
+{
+    $context = stream_context_create(['http' => ['method' => $method]]);
+    $headers = get_headers($url, 1, $context);
+    $app =& \App::getInstance();
+    $app->logMsg(getDump($headers, true, SC_DUMP_JSON), LOG_DEBUG, __FILE__, __LINE__);
+    if (empty($headers)) {
+        return false;
+    }
+
+    // Status lines are found in numeric-indexed keys.
+    $http_status_keys = preg_grep('/^\d$/', array_keys($headers)); // [0] => "HTTP/1.1 302 Found", [1] => "HTTP/1.1 200 OK",
+    $final_http_status_key = end($http_status_keys); // E.g., `1`
+    $final_http_status = $headers[$final_http_status_key]; // E.g., `HTTP/1.1 200 OK`
+    $app->logMsg(sprintf('$final_http_status: %s', $final_http_status), LOG_DEBUG, __FILE__, __LINE__);
+    if ($headers && preg_match(sprintf('/\b(%s)\b/', join('|', $valid_response_codes)), $final_http_status)) {
         $headers = array_change_key_case($headers, CASE_LOWER);
+        if (!isset($key)) {
+            return $headers;
+        }
         $key = strtolower($key);
         if (isset($headers[$key])) {
-            return $headers[$key];
+            // If multiple redirects, the header key is an array; return only the last one.
+            return is_array($headers[$key]) && isset($headers[$key][$final_http_status_key]) ? $headers[$key][$final_http_status_key] : $headers[$key];
         }
     }
@@ -1805 +1820 @@
 
     case 408:
-        $app->logMsg(sprintf('IP Intelligence timeout', null), LOG_WARNING, __FILE__, __LINE__);
+        $app->logMsg(sprintf('IP Intelligence timeout', null), LOG_NOTICE, __FILE__, __LINE__);
         return false;
     case 429:
@@ -1823 +1838 @@
         return false;
     case -3:
-        $app->logMsg('IP Intelligence: Unroutable or private address', LOG_WARNING, __FILE__, __LINE__);
+        $app->logMsg('IP Intelligence: Unroutable or private address', LOG_NOTICE, __FILE__, __LINE__);
         return false;
     case -4: