A new "shareCode" field is generated for each entry, and allows
unlogged users to access the entry through the /shared endpoint.
This feature is particularly useful to share articles from miniflux
to third-party users without having them to visit the original source.
The image proxy is disabled and special cache headers are proposed in
the shared page to avoid denial of service.
Auth Proxy allows to authenticate a user using an HTTP header provided
by an external authentication service. This provides a way to
authenticate users in miniflux using authentication schemes not
supported by miniflux itself (LDAP, non-Google OAuth2 providers, etc.)
and to implement SSO for multiple applications behind single
authentication service.
Auth Proxy header is checked for the '/' endpoint only, as the rest are
protected by the miniflux user/app sessions.
Closes#534
Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com>
