Re: Symlink redirection breaks FTP site re-organisation

On Mon, Jun 6, 2016 at 4:02 PM, Magnus Hagander <magnus@hagander.net> wrote:
>
>
> On Mon, Jun 6, 2016 at 2:11 PM, Dave Page <dpage@pgadmin.org> wrote:
>>
>> Hi,
>>
>> Whilst re-organising the pgAdmin website in preparation for pgAdmin 4,
>> it became clear to me that the way we currently handle symlinks on the
>> website FTP browser is broken. For example, the current pgAdmin site
>> has URLs like:
>>
>> https://www.postgresql.org/pgadmin3/release/v1.22.1/...
>>
>> I want to change this to:
>>
>> https://www.postgresql.org/pgadmin/pgadmin3/v1.22.1/...
>>
>> Thus I renamed/symlinked the pgadmin3 dir on Fendaus and the release
>> dir on Paxsor (the pgAdmin master server), however, whilst when we
>> encounter a symlink in the browser we re-write it to the target (so
>> that: https://www.postgresql.org/pgadmin3/ is rewritten to
>> https://www.postgresql.org/pgadmin/), we don't handle anything deeper
>> than that, so https://www.postgresql.org/pgadmin/release is a 404,
>> never mind anything below it.
>>
>> So, I'm thinking that we need to have the website stop rewriting the
>> URLs, or at least generate the index pages under both paths, as you
>> would see if you traversed the filesystem itself.
>>
>> In doing this, I think we should also use a different icon for
>> symlinks, so users can see that they're following a path (and maybe
>> display the filename as "pgadmin3 -> pgadmin" as well).
>>
>> Thoughts?
>
>
> Every single one of those URLs is a 404... Which makes the discussion a bit
> hard to follow. Is it correct to just inject a "/ftp/" in each case, or are
> there other subtleties to consider?

Err, yeah. Though I had to backout my changes of course as it broken
links all over the place because of this problem.

Here's a current example though:

https://www.postgresql.org/ftp/pgadmin3/ - This is a "real" directory.
https://www.postgresql.org/ftp/pgadmin/ - This is a symlink to
pgadmin3 (i.e. the on-page link is to the URL above)

On a filesystem, the following paths are effectively the same:

/pub/pgadmin3/release/v1.22.1/
/pub/pgadmin/release/v1.22.1/

However, not on the website:

https://www.postgresql.org/ftp/pgadmin3/release/v1.22.1/ (OK)
https://www.postgresql.org/ftp/pgadmin/release/v1.22.1/ (404)

This prevents me properly fixing the directory names, and using
symlinks for backwards-compatibility.