On Thu, Sep 02, 2010 at 07:52:26PM +0400, Igor Sysoev wrote:

> On Thu, Sep 02, 2010 at 06:31:32PM +0300, Reinis Rozitis wrote:
>
> > > Changes with nginx 0.8.50 02 Sep
> > > 2010
> > >
> > > *) Feature: the "secure_link", "secure_link_md5", and
> > > "secure_link_expires" directives of the ngx_http_secure_link_module.
> >
> > As already in the russian list ppl asked - could you explain the directives
> > (some wiki/doc update) or even quick config example.
>
> These directive add a new mode of the module operation.
> Here is configuration example:
>
> location /p/ {
> location ~ ^/p/(?<secure>[\w\-=]+,\d+)(?<file>/.+)$ {
>
> secure_link $secure;
> secure_link_md5 $secure_link_expires.$file.PASSWORD;
> secure_link_expires on;
>
> if ($secure_link = "") {
> return 403;
> }
>
> if ($secure_link == 0) {
> return 410;
> }
>
> alias /path/to$file;
> }
>
> return 404;
>
> error_page 403 /forbidden.html;
> error_page 404 /not_found.html;
> error_page 410 =403 /link_expired.html;
> }
>
> The "secure_link" directive specifies how to get hash and optional
> expiration time. The hash is md5 hash encoded in base64 for URIs
> (i.e., where "+" and "/" are changed to "-" and "_"). The optional time
> goes after ",".
> You can set hash in a URI, in a query string ($arg_secure), or in a cookie
> ($cookie_secure).
>
> The "secure_link_expires" directive specifies should the module test
> the expiration time. You may add the time in URI, etc., but may not test it.
> The $secure_link_expires variable has the time value exctracted by
> "secure_link" directive.
>
> The "secure_link_md5" directive specifies string for md5 hash.
>
> The $secure_link variable has the following values:
>
> "" - no valid link
> "0" - expired link
> "1" - valid link

Now I see that the "secure_link_expires" directive is surplus here:
if we want to test expiration time, we can do using "if ($secure_link = 0)".
So I will remove it in the next release.


--
Igor Sysoev
http://sysoev.ru/en/

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