README

THIS IS A WORK IN PROGRESS - YOU SHOULD NOT USE THIS LIBRARY AT THIS TIME!!

If you're looking for a solid LTI v1.3 PHP package definitely check out packbackbooks/lti-1p3-tool created by Packback

A library used for building IMS-certified LTI 1.3 tool providers in PHP.

This library allows a tool provider (your app) to receive LTI launches from a tool consumer (i.e. LMS). It validates LTI launches and lets an application interact with services like the Names Roles Provisioning Service (to fetch a roster for an LMS course) and Assignment Grades Service (to update grades for students in a course in the LMS).

This library was forked from packbackbooks/lti-1p3-tool created by Packback, which was in turn forked from IMSGlobal/lti-1-3-php-library, initially created by @MartinLenord.

Installation

Run:

composer require bnsoftware/lti-1p3-tool

In your code, you will now be able to use classes in the BNSoftware\Lti1p3 namespace to access the library.

Configure JWT

Add the following when bootstrapping your app.

Firebase\JWT\JWT::$leeway = 5;

Implement Data Storage Interfaces

This library uses three methods for storing and accessing data: cache, cookie, and database. All three must be implemented in order for the library to work. You may create your own custom implementations so long as they adhere to the following interfaces:

BNSoftware\Lti1p3\Interfaces\ICache
BNSoftware\Lti1p3\Interfaces\ICookie
BNSoftware\Lti1p3\Interfaces\IDatabase

View the Laravel Implementation Guide to see examples (or copy/paste the code outright). Cache and Cookie storage have legacy implementations at BNSoftware\Lti1p3\ImsStorage\ if you do not wish to implement your own. However, you must implement your own database.

Create a JWKS endpoint

A JWKS (JSON Web Key Set) endpoint can be generated for either an individual registration or from an array of KIDs and private keys.

use BNSoftware\Lti1p3\JwksEndpoint;

// From issuer
JwksEndpoint::fromIssuer($database, 'http://example.com')->outputJwks();
// From registration
JwksEndpoint::fromRegistration($registration)->outputJwks();
// From array
JwksEndpoint::new(['a_unique_KID' => file_get_contents('/path/to/private/key.pem')])->outputJwks();

Documentation

The wiki provides more detailed information about how to use this library, including a Laravel Implementation Guide.

Contributing

For improvements, suggestions or bug fixes, make a pull request or an issue. Before opening a pull request, add automated tests for your changes, ensure that all tests pass, and any linting errors are fixed.

Testing

Automated tests can be run using the command:

composer test

Linting can be run using

# Display linting errors
composer lint
# Automatically fix linting errors
composer lint-fix

bnsoftware / lti-1p3-tool

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