WebAppPassword

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This is a Nextcloud app to generate a temporary app password and set CORS headers to allow WebDAV/CalDAV, Share API and Preview access from inside a webpage.

Place this app in nextcloud/apps/ or install it from the Nextcloud App Store.

Configuration

You can configure the allowed origins for both WebDAV/CalDAV or files sharing api on the settings page of the application.

Alternatively you can also add this setting to your config/config.php (it will be used if the origins setting on the settings page are empty).

'webapppassword.origins' => ['https://example.com'], - array of allowed webdav/caldav origins

The setting is both used for the origin of the CORS headers for the WebDAV/CalDAV requests and for the referrer check whether we want to generate a temporary app password.

Also, you can configure in the same way the files sharing part.

'webapppassword.files_sharing_origins' => ['https://example.com'], - array of allowed files sharing api origins

Under the hood it exposes parts of the sharing api (CRUD and the preflight OPTIONS endpoint) in this url: https://example.com/index.php/apps/webapppassword/api/v1/shares

Also, you can configure in the same way the files preview part.

'webapppassword.preview_origins' => ['https://example.com'], - array of allowed preview api origins

Under the hood it exposes parts of the preview api (get and the preflight OPTIONS endpoint) in this url: https://example.com/index.php/apps/webapppassword/core/preview

Docker

You can use this container for development and testing of the application.

cd docker
docker compose build
docker compose up

• http://localhost:8081 admin/admin
• (first time only) For the origin config see WEBPASSWORD_ORIGINS in docker-compose.yml

Example

You can start a php server with cd docs/example && php -S localhost:8082 to see an example page on http://localhost:8082/.

If you have started the docker container you can log in to your Nextcloud container with admin/admin and receive a temporary app password for your user.

There also is the FileSource component of our Nextcloud file picker in the example.

Take a look at index.html for the source code of the page.

Running tests

You can use the provided Makefile to run all tests by using:

cd docker && make test

Generate translation

You will need the translationtool to generate the translation files for all languages.

php /path/to/translationtool.phar convert-po-files

See: Manual translation

References

This Nextcloud application is used in the [NextcloudFilePicker]https://github.com/digital-blueprint/toolkit/blob/main/packages/file-handling/src/nextcloud-file-picker.js) web component to generate temporary app passwords and to allow WebDAV-access from inside the web browser.

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This project is tested with BrowserStack.