Hello,
These are my guesses, I'm not affiliated with the chandler project.
On Thu, 2009-01-08 at 17:56, Eugene Eric Kim wrote:
> On Thu, Jan 8, 2009 at 4:03 PM, William K. Volkman
> <[email protected]> wrote:
> > The problem is from SSL, try adding "--no-check-certificate" to your
> > wget command.
>
> Thanks, William! That worked. Two followup questions:
>
> 1. Why is there a certificate verification error in the first place?
They used a self-signed certificate. The SSL protocol normally uses a
"Web of trust" to secure data, a third "trusted" party certifies that
the server your connecting to really belongs to a particular entity.
Since the registrars (IMHO) really just make money ($100/year) off of
being "trusted" third parties and because it doesn't add to the security
of the data being transmitted, the chandler project opted to just create
their own certificate. Browsers throw up dialogs to ask if you really
want to proceed, which most people just click and acknowledge and the
browser remembers for future connections. The programs wget and curl
don't have a method of storing/doing this so they provide the option of
"--no-check-certificate" which accomplishes the same thing.
> 2. Why does accessing the .ics file require HTTP authentication?
It's your calendar information identified by your username, the chandler
program remembers your authentication (username and password)
information in it's repository and includes it in each request to the
server. The wget/curl programs don't have that information stored so
they need it to be supplied each time.
> Or more specifically, if I want to subscribe to my Hub .ics file in
> the same way as I would use Chandler to subscribe to my Google
> Calendar, how would I do that?
Again, wget/curl don't have that information stored so require it to be
specified on each request to the server. Most servers use cookies to
track your login status, you might try out the wget options of
"--load-cookies fname", "--save-cookies fname ", and
"--keep-session-cookies" however if they've implemented the server
security correctly those cookies would expire after about an hour so may
not help.
HTH,
William.
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