File size: 3,975 Bytes
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<?php
header('Content-Type: application/json');
require_once 'settings.php';
require_once 'FileShare.php';
$fileShare = new FileShare();
try {
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// 处理上传
$data = [
'expire_time' => $_POST['expire_time'] ?? 86400,
'max_downloads' => $_POST['max_downloads'] ?? 0
];
if (isset($_FILES['file']) || isset($_POST['content'])) {
if (isset($_POST['content'])) {
$data['content'] = $_POST['content'];
}
$code = $fileShare->save($data);
echo json_encode([
'status' => 'success',
'code' => $code
]);
} else {
throw new Exception('未收到文件或文本内容');
}
} else if ($_SERVER['REQUEST_METHOD'] === 'GET') {
// 处理下载/获取
if (isset($_GET['download'])) {
$code = $_GET['download'];
$file = $fileShare->get($code);
if (!$file || $file['type'] !== 'file') {
throw new Exception('文件不存在或已过期');
}
// 获取文件 MIME 类型
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mime_type = finfo_file($finfo, $file['filepath']);
finfo_close($finfo);
// 清除之前的输出缓冲和头信息
ob_clean();
header('Content-Type: ' . $mime_type);
header('Content-Transfer-Encoding: binary');
header('Content-Disposition: attachment; filename="' . rawurlencode($file['filename']) . '"');
header('Content-Length: ' . filesize($file['filepath']));
header('Accept-Ranges: bytes');
// 处理断点续传
if (isset($_SERVER['HTTP_RANGE'])) {
list($start, $end) = sscanf($_SERVER['HTTP_RANGE'], 'bytes=%d-%d');
$filesize = filesize($file['filepath']);
if (!isset($end)) {
$end = $filesize - 1;
}
$length = $end - $start + 1;
header('HTTP/1.1 206 Partial Content');
header("Content-Range: bytes $start-$end/$filesize");
header('Content-Length: ' . $length);
$fp = fopen($file['filepath'], 'rb');
fseek($fp, $start);
$buffer = 1024 * 8;
while ($length > 0) {
$read = min($buffer, $length);
echo fread($fp, $read);
flush();
$length -= $read;
}
fclose($fp);
} else {
readfile($file['filepath']);
}
exit;
} else {
$code = $_GET['code'] ?? null;
if (!$code) {
throw new Exception('未提供提取码');
}
$file = $fileShare->get($code);
if (!$file) {
throw new Exception('文件不存在或已过期');
}
// 返回文件信息或文本内容
echo json_encode([
'status' => 'success',
'type' => $file['type'],
'content' => $file['content'],
'filename' => $file['filename'],
'current_downloads' => $file['current_downloads'],
'max_downloads' => $file['max_downloads'],
'expires_at' => $file['expires_at'],
'expires_at_formatted' => date('Y-m-d H:i:s', $file['expires_at']) // 添加格式化的时间
]);
}
}
} catch (Exception $e) {
http_response_code(400);
echo json_encode([
'status' => 'error',
'message' => $e->getMessage()
]);
}
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