static function ViewByUser($arFile, $arOptions = array())
{
/** @global CMain $APPLICATION */
global $APPLICATION;
$fastDownload = COption::GetOptionString('main', 'bx_fast_download', 'N') == 'Y';
$attachment_name = "";
$content_type = "";
$specialchars = false;
$force_download = false;
$cache_time = 10800;
$fromClouds = false;
if (is_array($arOptions)) {
if (isset($arOptions["content_type"])) {
$content_type = $arOptions["content_type"];
}
if (isset($arOptions["specialchars"])) {
$specialchars = $arOptions["specialchars"];
}
if (isset($arOptions["force_download"])) {
$force_download = $arOptions["force_download"];
}
if (isset($arOptions["cache_time"])) {
$cache_time = intval($arOptions["cache_time"]);
}
if (isset($arOptions["attachment_name"])) {
$attachment_name = $arOptions["attachment_name"];
}
}
if ($cache_time < 0) {
$cache_time = 0;
}
if (is_array($arFile)) {
if (isset($arFile["SRC"])) {
$filename = $arFile["SRC"];
} elseif (isset($arFile["tmp_name"])) {
$filename = "/" . ltrim(substr($arFile["tmp_name"], strlen($_SERVER["DOCUMENT_ROOT"])), "/");
} else {
$filename = static::GetFileSRC($arFile);
}
} else {
if ($arFile = static::GetFileArray($arFile)) {
$filename = $arFile["SRC"];
} else {
$filename = '';
}
}
if ($filename == '') {
return false;
}
if ($content_type == '' && isset($arFile["CONTENT_TYPE"])) {
$content_type = $arFile["CONTENT_TYPE"];
}
//we produce resized jpg for original bmp
if ($content_type == '' || $content_type == "image/bmp") {
if (isset($arFile["tmp_name"])) {
$content_type = static::GetContentType($arFile["tmp_name"], true);
} else {
$content_type = static::GetContentType($_SERVER["DOCUMENT_ROOT"] . $filename);
}
}
if ($arFile["ORIGINAL_NAME"] != '') {
$name = $arFile["ORIGINAL_NAME"];
} elseif ($arFile["name"] != '') {
$name = $arFile["name"];
} else {
$name = $arFile["FILE_NAME"];
}
if (isset($arFile["EXTENSION_SUFFIX"]) && $arFile["EXTENSION_SUFFIX"] != '') {
$name = substr($name, 0, -strlen($arFile["EXTENSION_SUFFIX"]));
}
$name = str_replace(array("\n", "\r"), '', $name);
if ($attachment_name) {
$attachment_name = str_replace(array("\n", "\r"), '', $attachment_name);
} else {
$attachment_name = $name;
}
if (!$force_download) {
if (!static::IsImage($name, $content_type) || $arFile["HEIGHT"] <= 0 || $arFile["WIDTH"] <= 0) {
//only valid images can be downloaded inline
$force_download = true;
}
}
$content_type = static::NormalizeContentType($content_type);
if ($force_download) {
$specialchars = false;
}
$src = null;
$file = new IO\File($_SERVER["DOCUMENT_ROOT"] . $filename);
if (substr($filename, 0, 1) == "/") {
try {
$src = $file->open(IO\FileStreamOpenMode::READ);
} catch (IO\IoException $e) {
return false;
}
} else {
if (!$fastDownload) {
$src = new \Bitrix\Main\Web\HttpClient();
} elseif (intval($arFile['HANDLER_ID']) > 0) {
$fromClouds = true;
}
}
$APPLICATION->RestartBuffer();
while (ob_end_clean()) {
}
$cur_pos = 0;
$filesize = $arFile["FILE_SIZE"] > 0 ? $arFile["FILE_SIZE"] : $arFile["size"];
$size = $filesize - 1;
$p = strpos($_SERVER["HTTP_RANGE"], "=");
if (intval($p) > 0) {
$bytes = substr($_SERVER["HTTP_RANGE"], $p + 1);
$p = strpos($bytes, "-");
if ($p !== false) {
$cur_pos = floatval(substr($bytes, 0, $p));
$size = floatval(substr($bytes, $p + 1));
if ($size <= 0) {
$size = $filesize - 1;
}
if ($cur_pos > $size) {
$cur_pos = 0;
$size = $filesize - 1;
}
}
}
if ($arFile["tmp_name"] != '') {
$tmpFile = new IO\File($arFile["tmp_name"]);
$filetime = $tmpFile->getModificationTime();
} else {
$filetime = intval(MakeTimeStamp($arFile["TIMESTAMP_X"]));
}
if ($_SERVER["REQUEST_METHOD"] == "HEAD") {
CHTTP::SetStatus("200 OK");
header("Accept-Ranges: bytes");
header("Content-Type: " . $content_type);
header("Content-Length: " . ($size - $cur_pos + 1));
if ($filetime > 0) {
header("Last-Modified: " . date("r", $filetime));
}
} else {
$lastModified = '';
if ($cache_time > 0) {
//Handle ETag
$ETag = md5($filename . $filesize . $filetime);
if (array_key_exists("HTTP_IF_NONE_MATCH", $_SERVER) && $_SERVER['HTTP_IF_NONE_MATCH'] === $ETag) {
CHTTP::SetStatus("304 Not Modified");
header("Cache-Control: private, max-age=" . $cache_time . ", pre-check=" . $cache_time);
die;
}
header("ETag: " . $ETag);
//Handle Last Modified
if ($filetime > 0) {
$lastModified = gmdate('D, d M Y H:i:s', $filetime) . ' GMT';
if (array_key_exists("HTTP_IF_MODIFIED_SINCE", $_SERVER) && $_SERVER['HTTP_IF_MODIFIED_SINCE'] === $lastModified) {
CHTTP::SetStatus("304 Not Modified");
header("Cache-Control: private, max-age=" . $cache_time . ", pre-check=" . $cache_time);
die;
}
}
}
$utfName = CHTTP::urnEncode($attachment_name, "UTF-8");
$translitName = CUtil::translit($attachment_name, LANGUAGE_ID, array("max_len" => 1024, "safe_chars" => ".", "replace_space" => '-'));
if ($force_download) {
//Disable zlib for old versions of php <= 5.3.0
//it has broken Content-Length handling
if (ini_get('zlib.output_compression')) {
ini_set('zlib.output_compression', 'Off');
}
if ($cur_pos > 0) {
CHTTP::SetStatus("206 Partial Content");
} else {
CHTTP::SetStatus("200 OK");
}
header("Content-Type: " . $content_type);
header("Content-Disposition: attachment; filename=\"" . $translitName . "\"; filename*=utf-8''" . $utfName);
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . ($size - $cur_pos + 1));
if (is_resource($src)) {
header("Accept-Ranges: bytes");
header("Content-Range: bytes " . $cur_pos . "-" . $size . "/" . $filesize);
}
} else {
header("Content-Type: " . $content_type);
header("Content-Disposition: inline; filename=\"" . $translitName . "\"; filename*=utf-8''" . $utfName);
}
if ($cache_time > 0) {
header("Cache-Control: private, max-age=" . $cache_time . ", pre-check=" . $cache_time);
if ($filetime > 0) {
header('Last-Modified: ' . $lastModified);
}
} else {
header("Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0");
}
header("Expires: 0");
header("Pragma: public");
// Download from front-end
if ($fastDownload) {
if ($fromClouds) {
$filename = preg_replace('~^(http[s]?)(\\://)~i', '\\1.', $filename);
$cloudUploadPath = COption::GetOptionString('main', 'bx_cloud_upload', '/upload/bx_cloud_upload/');
header('X-Accel-Redirect: ' . $cloudUploadPath . $filename);
} else {
$filename = $APPLICATION->ConvertCharset($filename, SITE_CHARSET, "UTF-8");
header('X-Accel-Redirect: ' . $filename);
}
} else {
session_write_close();
if ($specialchars) {
echo "<", "pre", ">";
if (is_resource($src)) {
while (!feof($src)) {
echo htmlspecialcharsbx(fread($src, 32768));
}
$file->close();
} else {
echo htmlspecialcharsbx($src->get($filename));
}
echo "<", "/pre", ">";
} else {
if (is_resource($src)) {
$file->seek($cur_pos);
while (!feof($src) && $cur_pos <= $size) {
$bufsize = 131072;
//128K
if ($cur_pos + $bufsize > $size) {
$bufsize = $size - $cur_pos + 1;
}
$cur_pos += $bufsize;
echo fread($src, $bufsize);
}
$file->close();
} else {
$fp = fopen("php://output", "wb");
$src->setOutputStream($fp);
$src->get($filename);
}
}
}
}
CMain::FinalActions();
die;
}
