SCORM XBlock for Open edX

This is an XBlock to display SCORM content within the Open edX LMS and Studio. It will save student state and report scores to the progress tab of the course. Currently supports SCORM 1.2 and SCORM 2004 standard.

This XBlock was initially developed by Raccoon Gang and published as edx_xblock_scorm. It was later improved, published on Pypi and relicensed as AGPLv3 thanks to the support of Compliplus Ltd.

This XBlock is not compatible with its ancestor: older xblocks cannot be simply migrated to the newer one. However, this xblock can be installed next to the other one and run on the same platform for easier transition.

IBL Features

• Allows author to specify an existing s3 path to serve s3 content as opposed to having to upload it each time
• Adds model to fascillitate reporting and aggregation of scorm events
  • Overall SCO State it currently enabled; Interactions to come

Features

• Full SCORM data student reports for staff users
• Fullscreen display on button pressed
• Optional display in pop-up window
• Integrated grading, compatible with rescoring
• Optional custom width navigation menu interpreted from manifest file
• Compatibility with Django storages, customizable storage backend

Installation

Uninstall the existing openedx-scorm-xblock if installed as this one will occupy the same namespace with a new name

pip uninstall openedx-scorm-xblock -y

Install the new xblock:

pip install git+https://github.com/iblai/ibl-edx-scorm-xblock

In the Open edX native installation, you will have to modify the files /edx/etc/lms.yml and /edx/etc/studio.yml. Replace

X_FRAME_OPTIONS: DENY

By

X_FRAME_OPTIONS: SAMEORIGIN

Migrations

Run migrations for the application via:

python manage.py lms migrate openedxscorm

Usage

In the Studio, go to the advanced settings of your course ("Settings" 🡒 "Advanced Settings"). In the "Advanced Module List" add "scorm". Then hit "Save changes".

Go back to your course content. In the "Add New Component" section, click "Advanced", and then "Scorm module". Click "Edit" on the newly-created module: this is where you will upload your content package. It should be a .zip file containing an imsmanifest.xml file at the root. The content of the package will be displayed in the Studio and the LMS after you click "Save".

Advanced configuration

Asset url

By default, SCORM modules will be accessible at "/scorm/" urls and static assets will be stored in "scorm" media folders -- either on S3 or in the local storage, depending on your platform configuration. To change this behaviour, modify the xblock-specific LOCATION setting

XBLOCK_SETTINGS["ScormXBlock"] = {
    "LOCATION": "alternatevalue",
}

Custom storage backends

By default, static assets are stored in the default Django storage backend. To override this behaviour, you should define a custom storage function. This function must take the xblock instance as its first and only argument. For instance, you can store assets in different directories depending on the XBlock organization with

def scorm_storage(xblock):
    from django.conf import settings
    from django.core.files.storage import get_storage_class
    from openedx.core.djangoapps.site_configuration.models import SiteConfiguration

    subfolder = SiteConfiguration.get_value_for_org(
        xblock.location.org, "SCORM_STORAGE_NAME", "default"
    )
    storage_location = os.path.join(settings.MEDIA_ROOT, subfolder)
    return get_storage_class(settings.DEFAULT_FILE_STORAGE)(
        location=storage_location, base_url=settings.MEDIA_URL + "/" + subfolder
    )

XBLOCK_SETTINGS["ScormXBlock"] = {
    "STORAGE_FUNC": scorm_storage,
}

This should be added both to the LMS and the CMS settings. Instead of a function, a string that points to an importable module may be passed

XBLOCK_SETTINGS["ScormXBlock"] = {
    "STORAGE_FUNC": "my.custom.storage.module.get_scorm_storage_function",
}

Note that the SCORM XBlock comes with S3 storage support out of the box. See the following section:

S3 storage

The SCORM XBlock may be configured to proxy static SCORM assets stored in either public or private S3 buckets. To configure S3 storage, add the following to your LMS and CMS settings

XBLOCK_SETTINGS["ScormXBlock"] = {
    "STORAGE_FUNC": "openedxscorm.storage.s3"
}

You may define the following additional settings in XBLOCK_SETTINGS["ScormXBlock"]:

• S3_BUCKET_NAME (default: AWS_STORAGE_BUCKET_NAME): to store SCORM assets in a specific bucket.
• S3_QUERY_AUTH (default: True): boolean flag (True or False) for query string authentication in S3 urls. If your bucket is public, set this value to False. But be aware that in such case your SCORM assets will be publicly available to everyone.
• S3_EXPIRES_IN (default: 604800): time duration (in seconds) for the presigned URLs to stay valid. The default is one week.

These settings may be added to Tutor by creating a plugin:

from tutor import hooks

hooks.Filters.ENV_PATCHES.add_item(
    (
        "openedx-common-settings",
        """
XBLOCK_SETTINGS["ScormXBlock"] = {
    "STORAGE_FUNC": "openedxscorm.storage.s3",
    "S3_BUCKET_NAME": "mybucket",
    ...
}"""
)

You may need to set other global s3 values expected by s3boto such as:

• AWS_S3_ACCESS_KEY_ID
• AWS_S3_SECRET_ACCESS_KEY
• AWS_S3_REGION_NAME

Development

Run unit tests with:

$ pytest /mnt/openedx-scorm-xblock/openedxscorm/tests/

To manage changelogs, please install scriv and follow the directions in the CHANGELOG.md.

Troubleshooting

This fork is maintained by IBL via https://github.com/iblai/ibl-edx-scorm-xblock. Community support is available from the official Open edX forum. Do you need help with this plugin? See the troubleshooting section from the Tutor documentation.

Contact us @ [email protected]

License

This work is licensed under the terms of the GNU Affero General Public License (AGPL).