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mirror of https://github.com/BookStackApp/BookStack.git synced 2024-10-30 23:52:40 +01:00
BookStack/app/Config/filesystems.php
Dan Brown 7224fbcc89
Added protections against path traversal in file system operations
- Files within the storage/ path could be accessed via path traversal
  references in content, accessed upon HTML export.
- This addresses this via two layers:
  - Scoped local flysystem filesystems down to the specific image &
    file folders since flysystem has built-in checking against the
    escaping of the root folder.
  - Added path normalization before enforcement of uploads/{images,file}
    prefix to prevent traversal at a path level.

Thanks to @Haxatron via huntr.dev for discovery and reporting.
Ref: https://huntr.dev/bounties/ac268a17-72b5-446f-a09a-9945ef58607a/
2021-10-08 17:47:14 +01:00

63 lines
2.0 KiB
PHP

<?php
/**
* Filesystem configuration options.
*
* Changes to these config files are not supported by BookStack and may break upon updates.
* Configuration should be altered via the `.env` file or environment variables.
* Do not edit this file unless you're happy to maintain any changes yourself.
*/
return [
// Default Filesystem Disk
// Options: local, local_secure, s3
'default' => env('STORAGE_TYPE', 'local'),
// Filesystem to use specifically for image uploads.
'images' => env('STORAGE_IMAGE_TYPE', env('STORAGE_TYPE', 'local')),
// Filesystem to use specifically for file attachments.
'attachments' => env('STORAGE_ATTACHMENT_TYPE', env('STORAGE_TYPE', 'local')),
// Storage URL
// This is the url to where the storage is located for when using an external
// file storage service, such as s3, to store publicly accessible assets.
'url' => env('STORAGE_URL', false),
// Default Cloud Filesystem Disk
'cloud' => 's3',
// Available filesystem disks
// Only local, local_secure & s3 are supported by BookStack
'disks' => [
'local' => [
'driver' => 'local',
'root' => public_path(),
],
'local_secure_attachments' => [
'driver' => 'local',
'root' => storage_path('uploads/files/'),
],
'local_secure_images' => [
'driver' => 'local',
'root' => storage_path('uploads/images/'),
],
's3' => [
'driver' => 's3',
'key' => env('STORAGE_S3_KEY', 'your-key'),
'secret' => env('STORAGE_S3_SECRET', 'your-secret'),
'region' => env('STORAGE_S3_REGION', 'your-region'),
'bucket' => env('STORAGE_S3_BUCKET', 'your-bucket'),
'endpoint' => env('STORAGE_S3_ENDPOINT', null),
'use_path_style_endpoint' => env('STORAGE_S3_ENDPOINT', null) !== null,
],
],
];