Reading the article/message in elisp

[husain]

Hello,

If I am in

  - the summary page, with the cursor on an unopen article line, or in
  - the summary page, with an open article, or in
  - an article

I would like to be able to read the article content in elisp and execute
processes based on that. For example, if the message has
TO:person@work.xyz, or CC:person@work.xyz, then I would like to open the
person's profile page.

Is there a gnus elisp function that allows me to access the article
programmatically?

Thanks.