【发布时间】:2017-08-03 17:06:29
【问题描述】:
我安装了服务器 (VPS) 并确保启用了 JSON 插件。 现在,我正在使用 Laravel,一个帮助文件返回文件的代码列表。 它在 Localhost 上工作,但在 HTTPS 服务器上不工作。
现在,这个 echo json_encode($enteries) 在 localhost (MAMP) 上工作,但在肝脏服务器上不工作。 我正在使用 Laravel V5.2 我在服务器上得到 responset type: text/html 作为响应。 而在 localhost 上,它是 application/json
提前谢谢你。
<?php
namespace ImageBrowser;
use ImageBrowserEntry\ImageBrowserEntry;
use Thumbnail\Thumbnail;
class ImageBrowser {
// path to file upload directory
private $contentPath = '';
public function __construct()
{
$this->contentPath = public_path() .\Config::get('global.DIRECTORY_SEPERATOR'). \Config::get('global.image_browser_path');
}
private function canAccess($path) {
return \ImageHelper::startsWith(realpath($path), realpath($this->contentPath));
}
private function ensureAccess($path) {
if (!$this->canAccess($path)) {
header('HTTP/1.0 403 Forbidden');
die();
}
}
private function normalize($path) {
if (!\ImageHelper::endsWith($path, '/')) {
$path .= '/';
}
return $path;
}
public function basePath() {
return $this->normalize($this->contentPath);
//return $this->normalize(realpath(dirname(__FILE__) . $this->contentPath));
}
public function getList($path) {
$this->ensureAccess($path);
header('Content-Type: application/json');
$dir = array_map(function ($scan_entry) use ($path) {
if (\ImageHelper::startsWith($scan_entry, '.')) {
return;
}
$entry = new ImageBrowserEntry();
$fullpath = realpath($path . $scan_entry);
$entry->name = $scan_entry;
$entry->type = is_dir($fullpath) ? 'd' : 'f';
$entry->size = filesize($fullpath);
if ($entry->type == 'f' && preg_match('/\\.(png|gif|jpg|jpeg)$/i', $scan_entry) == 0) {
return;
}
return $entry;
}, scandir($path));
$entries = array();
foreach ($dir as $entry) {
if ($entry) {
$entries[] = $entry;
}
}
echo json_encode($entries);
}
public function setImageHeaders($path, $type=null) {
if (!$type) {
$type = \ImageHelper::getImageType($path);
}
header("Content-type: image/" . $type);
header("Expires: Mon, 1 Jan 2099 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
// get the size for content length
$size = filesize($path);
header("Content-Length: $size bytes");
if (ob_get_contents()) ob_end_clean();
//ob_clean();
flush();
}
public function getThumbnail($path) {
$this->ensureAccess($path);
$image = new Thumbnail($path);
$this->setImageHeaders($path, $image->getType());
$image->downscale();
$image->render();
}
public function getImage($path) {
$this->ensureAccess($path);
$this->setImageHeaders($path);
readfile($path);
}
public function destroy($path, $entry) {
$target = $this->normalize($path) . $entry;
$this->ensureAccess($target);
if (is_dir($target)) {
\ImageHelper::rmdir_r($target);
} else {
unlink($target);
}
}
public function create($path, $entry) {
$this->ensureAccess($path);
mkdir($path . $entry);
}
public function saveFile($file, $path) {
$path = $this->normalize($path);
$this->ensureAccess($path);
$name = basename($file['name']);
$target = $path . $name;
move_uploaded_file($file['tmp_name'], $target);
header('Content-Type: application/json');
$result = new ImageBrowserEntry();
$result->size = filesize($target);
$result->name = $name;
echo json_encode($result);
}
}
【问题讨论】:
-
在浏览器中访问 JSON 端点会显示什么?
-
你真的应该使用
response()->json()- 你的 Laravel 控制器通常不应该直接回显内容。 -
这是一个不同的脚本。是的,我尝试了 response()->json()。仍然返回 text/html。
-
您是返回
response()->json()还是回应?你正在做很多绕过内置响应系统的非 Laravel-y 事情。例如,您的 403 错误应该是abort(403)。标题应该设置在像return response('Lorem ipsum...')->header('foo', 'bar')这样的响应上。response()->json()为您处理标题。等等等等等等。