Fixes rhost_http_url crashes when running the check method

[cgranleese-r7]

This PR Resolves #14308.

The crash was previously caused when the user enabled features set RHOST_HTTP_URL true, then when the check method is ran, it would crash and return this error message.

[-] Check failed: NoMethodError undefined method `split' for #<Hash:0x00005592b18970d0>

Example of crash:

This was caused due to a hash being passed in as value in single_rhost?(value). The fix now checks if value is a hash in get_uri and sets it appropriately before it gets passed to single_rhost?(value).

Options used to recreated issue:

Verification

Set-up for testing:
I edited my /etc/hosts to contain

127.0.0.1       wordpress.jeff.thm

Test steps:

• Start msfconsole
• run features set RHOST_HTTP_URL true
• run use exploit/unix/webapp/wp_admin_shell_upload
• Set options - see above for options used
• Verify the check method does not cause a crash

[adfoster-r7]

Release Notes

Fixed a crash when RHOST_HTTP_URL was used in conjunction with the check command. The RHOST_HTTP_URL option can be enabled with the command features set RHOST_HTTP_URL true.