From 61c50df07d9aa789e504f10dc5dd73332f478593 Mon Sep 17 00:00:00 2001
From: Lizandro Guarnizo <77708265+lizandrogd@users.noreply.github.com>
Date: Sat, 21 Feb 2026 09:19:17 -0500
Subject: [PATCH] Update MediaService.php

---
 classes/MediaService.php | 47 ++++++++++++++++++++++++++++++++++------
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/classes/MediaService.php b/classes/MediaService.php
index 729572f..517251c 100644
--- a/classes/MediaService.php
+++ b/classes/MediaService.php
@@ -127,20 +127,53 @@ class MediaService {
             CURLOPT_TIMEOUT => 180,
             CURLOPT_HTTPHEADER => $headers,
             CURLOPT_BUFFERSIZE => 65536,
-            CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V4,       // Forzar IPv4 (IPv6 no funciona en este host)
-            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, // Forzar HTTP/1.1 (HTTP/2 causa reset en lookaside.fbsbx.com)
+            CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V4,
+            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
         ]);
         $content = curl_exec($ch);
         $err = curl_error($ch);
         $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        $errno = curl_errno($ch);
         curl_close($ch);
 
-        // Log para diagnóstico
-        if ($err || $http >= 400) {
-            error_log("[MediaService::downloadUrl] FAIL url=" . substr($url, 0, 120) . " http={$http} err={$err}");
-            return false;
+        // Si curl funcionó correctamente, retornar contenido
+        if (!$err && $http >= 200 && $http < 400 && $content !== false && strlen($content) > 0) {
+            return $content;
         }
-        return $content;
+
+        // Fallback a wget cuando curl falla (OpenSSL incompatibilidad con Facebook CDN)
+        error_log("[MediaService::downloadUrl] curl failed (http={$http} errno={$errno} err={$err}), trying wget fallback...");
+        $content = $this->downloadWithWget($url, $headers);
+        if ($content !== false) {
+            return $content;
+        }
+
+        error_log("[MediaService::downloadUrl] FAIL url=" . substr($url, 0, 120) . " http={$http} err={$err} wget=also_failed");
+        return false;
+    }
+
+    /**
+     * Fallback: descargar con wget (usa GnuTLS en vez de OpenSSL, más compatible con Facebook CDN)
+     */
+    private function downloadWithWget($url, $headers = []) {
+        $tmpFile = tempnam(sys_get_temp_dir(), 'wget_');
+        $headerArgs = '';
+        foreach ($headers as $h) {
+            $headerArgs .= ' --header=' . escapeshellarg($h);
+        }
+        $cmd = 'wget -4 -q -O ' . escapeshellarg($tmpFile) . $headerArgs . ' ' . escapeshellarg($url) . ' 2>&1';
+        exec($cmd, $output, $exitCode);
+
+        if ($exitCode === 0 && file_exists($tmpFile) && filesize($tmpFile) > 0) {
+            $content = file_get_contents($tmpFile);
+            unlink($tmpFile);
+            error_log("[MediaService::downloadWithWget] OK, " . strlen($content) . " bytes");
+            return $content;
+        }
+
+        error_log("[MediaService::downloadWithWget] FAIL exit={$exitCode} output=" . implode(' ', $output));
+        if (file_exists($tmpFile)) unlink($tmpFile);
+        return false;
     }
 
     public function extensionFromMime($mime) {