BookStack/app/helpers.php
2017-01-15 16:27:24 +00:00

151 lines
4.0 KiB
PHP

<?php
use BookStack\Ownable;
/**
* Get the path to a versioned file.
*
* @param string $file
* @return string
* @throws Exception
*/
function versioned_asset($file = '')
{
static $version = null;
if (is_null($version)) {
$versionFile = base_path('version');
$version = trim(file_get_contents($versionFile));
}
$additional = '';
if (config('app.env') === 'development') {
$additional = sha1_file(public_path($file));
}
$path = $file . '?version=' . urlencode($version) . $additional;
return baseUrl($path);
}
/**
* Helper method to get the current User.
* Defaults to public 'Guest' user if not logged in.
* @return \BookStack\User
*/
function user()
{
return auth()->user() ?: \BookStack\User::getDefault();
}
/**
* Check if the current user has a permission.
* If an ownable element is passed in the jointPermissions are checked against
* that particular item.
* @param $permission
* @param Ownable $ownable
* @return mixed
*/
function userCan($permission, Ownable $ownable = null)
{
if ($ownable === null) {
return user() && user()->can($permission);
}
// Check permission on ownable item
$permissionService = app(\BookStack\Services\PermissionService::class);
return $permissionService->checkOwnableUserAccess($ownable, $permission);
}
/**
* Helper to access system settings.
* @param $key
* @param bool $default
* @return bool|string|\BookStack\Services\SettingService
*/
function setting($key = null, $default = false)
{
$settingService = app(\BookStack\Services\SettingService::class);
if (is_null($key)) return $settingService;
return $settingService->get($key, $default);
}
/**
* Helper to create url's relative to the applications root path.
* @param string $path
* @param bool $forceAppDomain
* @return string
*/
function baseUrl($path, $forceAppDomain = false)
{
$isFullUrl = strpos($path, 'http') === 0;
if ($isFullUrl && !$forceAppDomain) return $path;
$path = trim($path, '/');
// Remove non-specified domain if forced and we have a domain
if ($isFullUrl && $forceAppDomain) {
$explodedPath = explode('/', $path);
$path = implode('/', array_splice($explodedPath, 3));
}
// Return normal url path if not specified in config
if (config('app.url') === '') {
return url($path);
}
return rtrim(config('app.url'), '/') . '/' . $path;
}
/**
* Get an instance of the redirector.
* Overrides the default laravel redirect helper.
* Ensures it redirects even when the app is in a subdirectory.
*
* @param string|null $to
* @param int $status
* @param array $headers
* @param bool $secure
* @return \Illuminate\Routing\Redirector|\Illuminate\Http\RedirectResponse
*/
function redirect($to = null, $status = 302, $headers = [], $secure = null)
{
if (is_null($to)) {
return app('redirect');
}
$to = baseUrl($to);
return app('redirect')->to($to, $status, $headers, $secure);
}
/**
* Generate a url with multiple parameters for sorting purposes.
* Works out the logic to set the correct sorting direction
* Discards empty parameters and allows overriding.
* @param $path
* @param array $data
* @param array $overrideData
* @return string
*/
function sortUrl($path, $data, $overrideData = [])
{
$queryStringSections = [];
$queryData = array_merge($data, $overrideData);
// Change sorting direction is already sorted on current attribute
if (isset($overrideData['sort']) && $overrideData['sort'] === $data['sort']) {
$queryData['order'] = ($data['order'] === 'asc') ? 'desc' : 'asc';
} else {
$queryData['order'] = 'asc';
}
foreach ($queryData as $name => $value) {
$trimmedVal = trim($value);
if ($trimmedVal === '') continue;
$queryStringSections[] = urlencode($name) . '=' . urlencode($trimmedVal);
}
if (count($queryStringSections) === 0) return $path;
return baseUrl($path . '?' . implode('&', $queryStringSections));
}