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'; // === STATUS action: check if Resend key exists, account active === if ($action === 'status') { $key_exists = file_exists($key_file); $key_preview = ''; $account_ok = null; if ($key_exists) { $key = trim(file_get_contents($key_file)); $key_preview = substr($key, 0, 8) . '...' . substr($key, -4); // Ping Resend API $ch = curl_init('https://api.resend.com/domains'); curl_setopt_array($ch, [ CURLOPT_RETURNTRANSFER => 1, CURLOPT_HTTPHEADER => ['Authorization: Bearer ' . $key], CURLOPT_TIMEOUT => 5 ]); $resp = curl_exec($ch); $http = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); $account_ok = ($http === 200); $domains = @json_decode($resp, true); } echo json_encode([ 'ok' => true, 'v' => 'V5.9-resend-opus-20avr', 'action' => 'status', 'key_configured' => $key_exists, 'key_preview' => $key_preview, 'account_active' => $account_ok, 'domains_registered' => $domains['data'] ?? [], 'key_file' => $key_file, 'how_to_set_key' => 'POST {"action":"set_key","key":"re_xxx"}', 'fallback_chain' => [ '1. Resend.com (3K/month free)', '2. PMTA 4 ECS Huawei (production)', '3. O365 Graph API (604 accounts)', '4. Brevo/SendGrid if configured' ], 'ts' => date('c') ], JSON_PRETTY_PRINT); exit; } // === SET_KEY action: save Resend API key === if ($action === 'set_key') { $key = $input['key'] ?? ''; if (!preg_match('/^re_[a-zA-Z0-9_]{10,}$/', $key)) { echo json_encode(['ok'=>false,'error'=>'Invalid Resend key format (must start with re_)']); exit; } file_put_contents($key_file, $key); chmod($key_file, 0600); echo json_encode(['ok'=>true,'action'=>'set_key','key_saved'=>$key_file,'preview'=>substr($key,0,8).'...']); exit; } // === SEND action: actually send an email === if ($action === 'send') { if (!file_exists($key_file)) { // Fallback to PMTA via WEVADS IA S95 $fallback = @file_get_contents('https://wevads.weval-consulting.com/api/sentinel-brain.php', false, stream_context_create(['http' => [ 'method' => 'POST', 'header' => 'Content-Type: application/x-www-form-urlencoded', 'content' => http_build_query([ 'action' => 'exec', 'cmd' => 'echo PMTA_fallback_would_send_to:' . escapeshellarg($to) ]), 'timeout' => 5 ]])); echo json_encode([ 'ok' => false, 'error' => 'No Resend key configured', 'fallback_used' => 'PMTA S95 (would be used in prod)', 'fallback_response' => substr((string)$fallback, 0, 300), 'action_needed' => 'Set Resend key via {"action":"set_key","key":"re_xxx"}' ]); exit; } $key = trim(file_get_contents($key_file)); $ch = curl_init('https://api.resend.com/emails'); curl_setopt_array($ch, [ CURLOPT_RETURNTRANSFER => 1, CURLOPT_POST => 1, CURLOPT_HTTPHEADER => [ 'Authorization: Bearer ' . $key, 'Content-Type: application/json' ], CURLOPT_POSTFIELDS => json_encode([ 'from' => $from, 'to' => [$to], 'subject' => $subject, 'html' => $html ]), CURLOPT_TIMEOUT => 15 ]); $resp = curl_exec($ch); $http = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); $d = @json_decode($resp, true); echo json_encode([ 'ok' => $http === 200, 'action' => 'send', 'http_code' => $http, 'to' => $to, 'from' => $from, 'subject' => $subject, 'resend_response' => $d, 'ts' => date('c') ], JSON_PRETTY_PRINT); exit; } echo json_encode(['ok'=>false,'error'=>'Unknown action. Use: status | set_key | send']);