The generate RSA key and import theme routes worked separate from each
other. The RSA key returned both the public and private key and it was
the frontend which posted the private key back to the server. With this
commit, only the public key is necessary as the server keeps a map of
public and private keys that is used to get the private key back from
a public key.
When installing private themes and theme components, the public key does
not show until the administrator types a valid Git repo URL. The regular
expression that checked the URL was too strict and it required the URL
to end with ".git".
A public key must be added to GitHub when installing private themes.
When the process happens asynchronously (for example if the admin does
not have admin permissions to the GitHub repository), installing
private themes becomes very difficult.
In this case, the Discourse admin can partially install the theme by
letting Discourse save the private key, create a placeholder theme and
give the admin a public key to be used as a deploy key. After the key
is installed, the admin can finish theme installation by pressing a
button on the theme page.
Some git repos have a different ssh url scheme than github and we should
support them.
This change updates our regex format to account for repos that don't
start with "git", but are still valid ssh urls.
Also I added some tests to account for the various formats and to ensure
we don't show the public key when using https urls.
See: https://meta.discourse.org/t/182668
Installing multiple copies of the same theme/component is possible, but you rarely need to actually have multiple copies installed. We've seen many times new admins installing duplicates of components because they were unaware it was already installed. This PR makes the theme installer modal loop through the existing themes when you click on 'install', and if there is a theme with a URL that matches the URL you entered, a warning will show up and you will need to click 'install' again to proceed.
