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Re: [Fwd: Re: Programmatically verify user is logged in?]

From: Ben Collins-Sussman <sussman_at_collab.net>
Date: 2005-03-07 16:37:06 CET

On Mar 7, 2005, at 8:13 AM, C. Schanck wrote:

> From: Ben Collins-Sussman <sussman@collab.net>
> Date: March 7, 2005 7:59:37 AM CST
> To: "C. Schanck" <chris@schanck.net>
> Subject: Re: Programmatically verify user is logged in?
> (can you resend to the users@ list to keep this public?)
> On Mar 6, 2005, at 10:06 PM, C. Schanck wrote:
>> Ben Collins-Sussman wrote:
>>> On Mar 3, 2005, at 10:16 PM, Chris Schanck wrote:
>>>> We use svn inside another set of scripts -- python to be exact. One
>>>> of the problems we run into is that the script cannot easily tell
>>>> or enforce that the user has write access to the repository before
>>>> an svn command is executed.
>>>> Is there an (easy|portable|fast) way to check if the user has
>>>> authenticated?
>>> Subversion isn't like CVS; the client doesn't "log in". Instead,
>>> the server either sends a challenge, or it doesn't. The client only
>>> authenticates when the server prompts.
>>> I have to admit that I don't understand. What does it mean for a
>>> script to "enforce that a user has write access to a repository"?
>>> Access control is something controlled by the server, and the
>>> policies are created server-side. No script can force the client to
>>> "log in"... the client just responds when the server prompts.
>> Hey Ben,
>> I understand how subversion works. But it is annoying for us.
>> Our developers don't bother to know they are using subversion much.
>> They barely noticed we moved from CVS to subversion (except for the
>> speed increase ;-). They just use our scripts.
>> The script we use captures input and parses output and status.
>> Consequently when a user needs to login, the script just hangs and
>> the user has no idea why. Of course, I know it is waiting on input.
>> But that doesn't help much.
>> CVS was much easier to use in "batch" mode. With subversion, there is
>> no way to tell if the user has logged in, and if it will fail.
>> Annoying. I'd rather svn just failed if it needed to authenticate.

Have you learned about the --non-interactive switch? That will prevent
any prompting and just cause failure.

Also, what you probably want is to use --username and --password on the
commandline. This "arms" a set of authentication credentials, so that
if the server decides to challenge the client, they'll be used

All of these options are useful for scripting, and I suspect will solve
your problems.

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Received on Mon Mar 7 16:39:47 2005

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