misuzu/public/user-assets.php
2020-06-05 15:20:07 +00:00

97 lines
3.3 KiB
PHP

<?php
namespace Misuzu;
use Misuzu\Imaging\Image;
use Misuzu\Users\User;
use Misuzu\Users\UserNotFoundException;
$userAssetsMode = !empty($_GET['m']) && is_string($_GET['m']) ? (string)$_GET['m'] : '';
$misuzuBypassLockdown = $userAssetsMode === 'avatar';
require_once '../misuzu.php';
try {
$userInfo = User::byId((int)filter_input(INPUT_GET, 'u', FILTER_SANITIZE_NUMBER_INT));
$userExists = true;
} catch(UserNotFoundException $ex) {
$userExists = false;
}
$userId = $userExists ? $userInfo->getId() : 0;
$canViewImages = !$userExists
|| !$userInfo->isBanned()
|| (
parse_url($_SERVER['HTTP_REFERER'] ?? '', PHP_URL_PATH) === url('user-profile')
&& perms_check_user(MSZ_PERMS_USER, User::hasCurrent() ? User::getCurrent()->getId() : 0, MSZ_PERM_USER_MANAGE_USERS)
);
$isFound = true;
switch($userAssetsMode) {
case 'avatar':
$isFound = false;
if(!$canViewImages) {
$filename = Config::get('avatar.banned', Config::TYPE_STR, '/images/banned-avatar.png');
break;
}
$filename = Config::get('avatar.default', Config::TYPE_STR, '/images/no-avatar.png');
if(!$userExists)
break;
$dimensions = MSZ_USER_AVATAR_RESOLUTION_DEFAULT;
if(isset($_GET['r']) && is_string($_GET['r']) && ctype_digit($_GET['r']))
$dimensions = user_avatar_resolution_closest((int)$_GET['r']);
$avatarFilename = sprintf('%d.msz', $userId);
$avatarOriginal = sprintf('%s/avatars/original/%s', MSZ_STORAGE, $avatarFilename);
if($dimensions === MSZ_USER_AVATAR_RESOLUTION_ORIGINAL) {
$filename = $avatarOriginal;
break;
}
$avatarStorage = sprintf('%1$s/avatars/%2$dx%2$d', MSZ_STORAGE, $dimensions);
$avatarCropped = sprintf('%s/%s', $avatarStorage, $avatarFilename);
$fileDisposition = sprintf('avatar-%d-%2$dx%2$d', $userId, $dimensions);
if(is_file($avatarCropped)) {
$isFound = true;
$filename = $avatarCropped;
} else {
if(is_file($avatarOriginal)) {
$isFound = true;
try {
mkdirs($avatarStorage, true);
$avatarImage = Image::create($avatarOriginal);
$avatarImage->squareCrop($dimensions);
$avatarImage->save($filename = $avatarCropped);
} catch(Exception $ex) {}
}
}
break;
case 'background':
if(!$canViewImages && !$userExists)
break;
$backgroundStorage = sprintf('%s/backgrounds/original', MSZ_STORAGE);
$fileDisposition = sprintf('background-%d', $userId);
$filename = sprintf('%s/%d.msz', $backgroundStorage, $userId);
mkdirs($backgroundStorage, true);
break;
}
if($isFound && (empty($filename) || !is_file($filename))) {
http_response_code(404);
return;
}
$contentType = mime_content_type($isFound ? $filename : (MSZ_ROOT . '/public' . $filename));
header(sprintf('X-Accel-Redirect: %s', str_replace(MSZ_STORAGE, '/msz-storage', $filename)));
header(sprintf('Content-Type: %s', $contentType));
if(isset($fileDisposition))
header(sprintf('Content-Disposition: inline; filename="%s.%s"', $fileDisposition, explode('/', $contentType)[1]));