Redirects: relative vs absolute
I've seen a number of code examples for redirects which output a root-relative URI in the Location header. Eg: Location: /images/item1.gif Although browsers seem to accept this and do 'the right thing', the HTTP RFC seems to be pretty clear that the Location header must be an absolute URI. Am I reading it wrong? Is there an easy way to get the absolute URI of the current request to use with Apache::URI-parse to translate a relative URI to absolute? I have managed to get the hostname, port number and path components individually from the request object and paste them together but it's all a bit messy. Regards Grant
Re: Redirects: relative vs absolute
Grant == Grant McLean [EMAIL PROTECTED] writes: Grant I've seen a number of code examples for redirects which output a Grant root-relative URI in the Location header. Eg: Grant Location: /images/item1.gif If that's coming out from a CGI or Apache::Registry script, the browser never sees it, because it's handled as an internal redirect. That can be messy if it's an HTML page with relative links, as the browser will fetch the links relative to the *old* URL, not the new URL. It's also messy if you meant to keep that URL private, but something breaks as a result, and the URL gets publicized in an error message. Now, you may be talking about a response header that's not related to CGI or Apache::Registry, in which case this doesn't apply. -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 [EMAIL PROTECTED] URL:http://www.stonehenge.com/merlyn/ Perl/Unix/security consulting, Technical writing, Comedy, etc. etc. See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!
Re: Redirects: relative vs absolute
--- Grant McLean [EMAIL PROTECTED] wrote: Is there an easy way to get the absolute URI of the current request to use with Apache::URI-parse to translate a relative URI to absolute? From perldoc URI - $uri = URI#8722;new_abs( $str, $base_uri ) This constructs a new absolute URI object. The $str argument can denote a relative or absolute URI. If relative, then it will be absolutized using $base_uri as base. The $base_uri must be an abso#8208; lute URI. - Regards Mithun __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/
Re: Redirects: relative vs absolute
Grant McLean wrote:
I've seen a number of code examples for redirects which output a
root-relative URI in the Location header. Eg:
Location: /images/item1.gif
Although browsers seem to accept this and do 'the right thing', the
HTTP RFC seems to be pretty clear that the Location header must be
an absolute URI. Am I reading it wrong?
no.
Is there an easy way to get the absolute URI of the current request
to use with Apache::URI-parse to translate a relative URI to
absolute?
I have managed to get the hostname, port number and path components
individually from the request object and paste them together but
it's all a bit messy.
to generate a URI that points to the same server as the current request it's
best to use Apache::URI methods, which are pretty easy.
my $uri = Apache::URI-parse($r);
$uri-path('/some/new/document.html');
my $absolute_uri = $uri-unparse;
note that calling path() (or any other method) is optional - you don't need
to change anything in order to unparse() the URI and get an absolute URI back.
Apache::URI::parse() can take an optional second argument, which it will
then parse and use as the base for the URI (in place of the current request).
HTH
--Geoff
RE: Redirects: relative vs absolute
Geoffrey Young wrote:
Grant McLean wrote:
Is there an easy way to get the absolute URI of the current request
to use with Apache::URI-parse to translate a relative URI to
absolute?
to generate a URI that points to the same server as the
current request it's best to use Apache::URI methods, which are
pretty easy.
my $uri = Apache::URI-parse($r);
$uri-path('/some/new/document.html');
my $absolute_uri = $uri-unparse;
note that calling path() (or any other method) is optional -
you don't need to change anything in order to unparse() the
URI and get an absolute URI back.
Excellent, I knew there must be an easier way than what I was doing.
Regards
Grant
Re: Redirects: relative vs absolute
Geoffrey Young wrote:
to generate a URI that points to the same server as the current request
it's best to use Apache::URI methods, which are pretty easy.
my $uri = Apache::URI-parse($r);
$uri-path('/some/new/document.html');
my $absolute_uri = $uri-unparse;
note that calling path() (or any other method) is optional - you don't
need to change anything in order to unparse() the URI and get an
absolute URI back.
So basically it's:
my $absolute_uri = Apache::URI-parse($r)-unparse;
So just a heads up for mp2, there is a new method to do that:
use Apache::URI ();
my $absolute_uri = $r-construct_url();
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