Pass shortcode atts to the handler

[drobin03]

Description

In 4.0.0 the "[auth0]" shortcode no longer accepts parameters (i.e "redirect_to"), this looks like it was an accidental bug introduced during a rewrite.

Testing

Verified locally that the redirect_to shortcode now works. Also compared to v3.11 to be sure that this used to be supported.

[joshcanhelp]

@drobin03 - Appreciate the PR here! It looks like you're right, the original method was passing that before (as it should):

https://github.com/auth0/wp-auth0/blob/3.11.3/WP_Auth0.php#L355

Let me get a few tests in here, address your other issue, and we'll get a patch release out as soon as possible.

[drobin03]

Sounds great. Thanks @joshcanhelp!

[joshcanhelp]

❯ composer test
> "vendor/bin/phpunit"
Installing...
Running as single site... To run multisite, use -c tests/phpunit/multisite.xml
Not running ajax tests. To execute these, use --group ajax.
Not running ms-files tests. To execute these, use --group ms-files.
Not running external-http tests. To execute these, use --group external-http.
PHPUnit 6.5.14 by Sebastian Bergmann and contributors.

Runtime:       PHP 7.2.28 with Xdebug 2.6.0
Configuration: ~/Sites/wp-auth0/wp-content/plugins/auth0/phpunit.xml.dist

...............................................................  63 / 409 ( 15%)
............................................................... 126 / 409 ( 30%)
............................................................... 189 / 409 ( 46%)
............................................................... 252 / 409 ( 61%)
............................................................... 315 / 409 ( 77%)
............................................................... 378 / 409 ( 92%)
...............................                                 409 / 409 (100%)

Time: 23.19 seconds, Memory: 48.25MB

OK (409 tests, 1561 assertions)

~/Sites/wp-auth0/wp-content/plugins/auth0 4.0_fix_shortcode_atts 24s
❯ snyk test

Testing ~/Sites/wp-auth0/wp-content/plugins/auth0...

Organization:      auth0-sdks
Package manager:   composer
Target file:       composer.lock
Project name:      auth0/wp-auth0
Open source:       no
Project path:      ~/Sites/wp-auth0/wp-content/plugins/auth0
Licenses:          enabled

✓ Tested 4 dependencies for known issues, no vulnerable paths found.

Next steps:
- Run `snyk monitor` to be notified about new related vulnerabilities.
- Run `snyk test` as part of your CI/test.