LTI_Message_Launch get_public_key method issue due to JWK changes

[ThomasDumazet]

The method get_public_key returns openssl_pkey_get_details(JWK::parseKey($key)), but we encountered an error saying openssl_pkey_get_details() expects parameter 1 to be resource, object given.
After investigation, we discovered that firebase has changed the return type for JWK methods in January 2022.
The lti-1-3-php-library library doesn't require firebase/php-jwt but fproject/php-jwt that doesn't show these changes.
The problems start when the project using the lti-1-3-php-library library requires the firebase/php-jwt library as both of firebase/php-jwt and fproject/php-jwt libraries use the same namespace.

[JanHolger]

Hi Thomas there has been 2 PR's fixing both this and other errors that arise when using it together with the official firebase/php-jwt aswell as other Laravel issues. Unfortunately IMS seems to have died during the pandemic or something and there hasn't been any response on this in over 2 years now. If only your own code depends on php-jwt you could try using the outdated library instead but the parameter types are a little different. There is also an unofficial fork that contains all these changes: composer require packbackbooks/lti-1p3-tool