DRAFT: Redirect URLs from WP mailings

[aydun]

Overview

Provide URL redirection so that mails sent from Civi on WP continue to work after migration to Standalone.

This reduces one of the points of friction when migrating to Standalone.

Background: https://chat.civicrm.org/civicrm/pl/ojd5d8kisjrd8nmr13qw97take

Before

1. Send a mail from Civi on WordPress
2. Migrate from WP to Standalone
3. All your client's historic mails in end-user mailboxes are broken.

After

Historic mails continue to work.

Technical Details

The first 2 of the redirections could be done at the webserver level - if your hosting provides capability to do that.
The mailing url ones need to look at the parameters.

These URL's are intentionally specific to those found in Mosaico mails, not a general redirection from WP.

The call to self::wpredirect() could be gated behind a setting.

This should be fairly safe from weirdly crafted URLs since it just does redirects.

Comments

Anything else you would like the reviewer to note

[civibot]

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