up

2026-01-21 12:20:46 -05:00
parent 6cec747ae3
commit 901d51c82f
11 changed files with 363 additions and 7 deletions
@@ -0,0 +1,143 @@
+<?php
+/**
+ * Simple MediaService
+ * - fetchFromGraph(mediaId) -> gets Graph API URL and downloads
+ * - storeContent($bytes, $destPath)
+ * - createThumbnail($srcPath, $thumbPath)
+ */
+class MediaService {
+    private $token;
+    private $apiUrl;
+    private $uploadsDir;
+
+    public function __construct() {
+        $this->token = getConfigFromDB('whatsapp_token', '');
+        $this->apiUrl = rtrim(getConfigFromDB('whatsapp_api_url', 'https://graph.facebook.com/v22.0/'), '/');
+        $this->uploadsDir = __DIR__ . '/../uploads/media';
+        if (!is_dir($this->uploadsDir)) mkdir($this->uploadsDir, 0755, true);
+    }
+
+    public function fetchAndStoreFromGraph($mediaId, $subdir = '') {
+        // Obtener metadata (url)
+        $endpoint = "{$this->apiUrl}/{$mediaId}";
+        $ch = curl_init();
+        curl_setopt_array($ch, [
+            CURLOPT_URL => $endpoint,
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_HTTPHEADER => ['Authorization: Bearer ' . $this->token],
+            CURLOPT_TIMEOUT => 15
+        ]);
+        $resp = curl_exec($ch);
+        $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        $err = curl_error($ch);
+        curl_close($ch);
+
+        if ($err || $http >= 400) {
+            throw new Exception('Graph API fetch failed: ' . $err);
+        }
+        $decoded = json_decode($resp, true);
+        $mediaUrl = $decoded['url'] ?? ($decoded['data'][0]['url'] ?? null);
+        if (!$mediaUrl) throw new Exception('No media url from Graph');
+
+        // Descargar contenido (primer intento)
+        $content = $this->downloadUrl($mediaUrl);
+        if ($content === false) {
+            // Reintentar con header Referer (algunos endpoints requieren referer)
+            $content = $this->downloadUrl($mediaUrl, ['Referer: https://graph.facebook.com']);
+        }
+        if ($content === false) throw new Exception('Failed to download media content from ' . $mediaUrl);
+
+        // Detectar extension desde mime o url
+        $mime = $decoded['mime_type'] ?? null;
+        $ext = $this->extensionFromMime($mime) ?: pathinfo(parse_url($mediaUrl, PHP_URL_PATH), PATHINFO_EXTENSION) ?: 'bin';
+
+        $dir = $this->uploadsDir . ($subdir ? '/' . trim($subdir, '/') : '');
+        if (!is_dir($dir)) mkdir($dir, 0755, true);
+
+        $filename = uniqid('m_') . '.' . $ext;
+        $fullPath = $dir . '/' . $filename;
+        file_put_contents($fullPath, $content);
+
+        $result = ['local_file' => 'uploads/media' . ($subdir ? '/' . trim($subdir, '/') : '') . '/' . $filename, 'mime_type' => $mime, 'size' => filesize($fullPath)];
+
+        // Si es imagen, generar miniatura
+        if ($this->isImageMime($mime) || preg_match('#^jpe?g|png|gif$#i', $ext)) {
+            $thumbPath = $dir . '/thumb_' . $filename . '.jpg';
+            $thumbRel = dirname($result['local_file']) . '/thumb_' . $filename . '.jpg';
+            if ($this->createThumbnail($fullPath, $thumbPath)) {
+                $result['local_thumb'] = $thumbRel;
+            }
+        }
+
+        return $result;
+    }
+
+    public function downloadUrl($url, $extraHeaders = []) {
+        // Incluir Authorization Bearer si está configurado (necesario para algunos endpoints)
+        $authHeader = [];
+        if (!empty($this->token)) {
+            $authHeader[] = 'Authorization: Bearer ' . $this->token;
+        }
+        $headers = array_merge(['User-Agent: WhatsAppMediaFetcher/1.0', 'Accept: */*'], $authHeader, $extraHeaders);
+
+        $ch = curl_init();
+        curl_setopt_array($ch, [
+            CURLOPT_URL => $url,
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_TIMEOUT => 30,
+            CURLOPT_HTTPHEADER => $headers,
+        ]);
+        $content = curl_exec($ch);
+        $err = curl_error($ch);
+        $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+        if ($err || $http >= 400) return false;
+        return $content;
+    }
+
+    public function extensionFromMime($mime) {
+        if (!$mime) return null;
+        $map = [
+            'image/jpeg' => 'jpg',
+            'image/png' => 'png',
+            'image/gif' => 'gif',
+            'audio/mpeg' => 'mp3',
+            'audio/ogg' => 'ogg',
+            'video/mp4' => 'mp4',
+            'text/csv' => 'csv',
+            'application/pdf' => 'pdf'
+        ];
+        return $map[$mime] ?? null;
+    }
+
+    public function isImageMime($mime) {
+        return strpos($mime, 'image/') === 0;
+    }
+
+    public function createThumbnail($src, $dest, $maxW = 400, $maxH = 400) {
+        if (!function_exists('getimagesize')) return false;
+        $info = @getimagesize($src);
+        if (!$info) return false;
+        list($w, $h) = $info;
+        $mime = $info['mime'];
+
+        switch ($mime) {
+            case 'image/jpeg': $srcImg = imagecreatefromjpeg($src); break;
+            case 'image/png': $srcImg = imagecreatefrompng($src); break;
+            case 'image/gif': $srcImg = imagecreatefromgif($src); break;
+            default: return false;
+        }
+
+        $ratio = min($maxW / $w, $maxH / $h, 1);
+        $nw = (int)($w * $ratio);
+        $nh = (int)($h * $ratio);
+
+        $thumb = imagecreatetruecolor($nw, $nh);
+        imagecopyresampled($thumb, $srcImg, 0,0,0,0, $nw, $nh, $w, $h);
+        imagejpeg($thumb, $dest, 85);
+        imagedestroy($thumb);
+        imagedestroy($srcImg);
+        return true;
+    }
+}