Re: $r->path_info question
* simran <[EMAIL PROTECTED]> [2002-07-23 05:11]: > However: if i create an 'auto' directory in my document root > (something that was not there before) > [-- snip --] > Is this is feature or a bug, does path_info not check the 'Location' it > matced the handler to or is it meant to look at the directory structure? This is how Apache handles path_info: it is the "extra" stuff after the translation handler has found a directory and filename. It starts at the left, and walks towards the right, until it finds the last component that is a directory, and then the next piece is the file (no existance check is done at this point). The rest of it is path_info. For example: A request for /foo/bar/baz/quux, with a document root of /document/root (assuming no Alias directives, that complicates things slightly), and assuming that /document/root/foo is the last *directory* in the path that exists, Apache does this: 1. look for /document -> yep 2. look for /document/root -> yep 3. look for /document/root/foo -> yep 4. look for /document/root/foo/bar -> nope So /document/root/foo/bar is r->filename, and /baz/quux is path_info. To reiterate: this is not a mod_perl thing (bug/whatever) but an Apache one. (darren) -- An operating system is just a name you give the features you left out of your editor. -- Per Abrahamsen in comp.emacs
Re: $r->path_info question
> Hi all, > > I am using $r->path_info in an Apache handler. The handler is set via a > Location directive: > > # Overcoming Legacy code :-) > SetHandler perl-script > PerlHandler eLogix::Images::Detail > > > And is called like "/cgi-bin/detail.pl/A1234567.jpg". My question is > this: Since there is no physical filename which corresponds to the URL, > what does path_info contain? In the eagle book on page 135, when > path_info is first discussed, the example uses > $r->lookup_uri($path_info) to get the filename, which in this example is > a purely virtual tree. $r->path_info contains what's left of the URI after it's been mapped to a (virtual) file, in your case /A1234567.jpg > I currently am using > > my $filename = (split /\//, $r->path_info)[1]; or you could have used (my $filename = $r->path_info) =~ s!^/!!; > but it seems like such a hack. What is the "suggested" way to get the > "A1234567.jpg" part of the above URL? Since you have no trailing slash in your directive, you get a leading / in path_info. What would be the filename if the request URI was /cgi-bin/detail.pl/foo/bar.jpg ? In that case path_info will be '/foo/bar.jpg'. Maybe what you really want is my $filename = (split /\//, $r->path_info)[-1]; whatever... it's completely up to the application to define the semantics of path_info. > -- > Drew Taylor -- Eric
Re: $r->path_info question
David Kenzik wrote: > > Drew Taylor said... > > > > I currently am using > > > > my $filename = (split /\//, $r->path_info)[1]; > > > > but it seems like such a hack. What is the "suggested" way to get the > > "A1234567.jpg" part of the above URL? > > Since Apache sets path_info by scanning the physical filesystem, and since > you are overcoming legacy calls to a script inside cgi-bin, your solution is > probably just fine. > > I had a similar issue in the past: > > http://forum.swarthmore.edu/epigone/modperl/smumbabax > > As Doug mentions in that thread, $r->location might be of some assistance. That was an interesting thread. However, I think Eric found the easiest solution for me. This handler is very simple and if the requested file does not pass -e, it just returns NOT_FOUND. So I guess I'll stick with my original thinking for now. Thanks. -- Drew Taylor Vialogix Communications, Inc. 501 N. College Street Charlotte, NC 28202 704 370 0550 http://www.vialogix.com/
Re: $r->path_info question
Eric Cholet wrote: > > > Hi all, > > > > I am using $r->path_info in an Apache handler. The handler is set via a > > Location directive: > > > > # Overcoming Legacy code :-) > > SetHandler perl-script > > PerlHandler eLogix::Images::Detail > > > > > > And is called like "/cgi-bin/detail.pl/A1234567.jpg". My question is > > this: Since there is no physical filename which corresponds to the URL, > > what does path_info contain? In the eagle book on page 135, when > > path_info is first discussed, the example uses > > $r->lookup_uri($path_info) to get the filename, which in this example is > > a purely virtual tree. > > $r->path_info contains what's left of the URI after it's been mapped > to a (virtual) file, in your case /A1234567.jpg > > > I currently am using > > > > my $filename = (split /\//, $r->path_info)[1]; > > or you could have used > (my $filename = $r->path_info) =~ s!^/!!; I had not considered doing it in one pass. :-) At the risk of exposing my newbieness, where is this form documented? (I'll admit now to not having read the Camel book cover to cover.) > Since you have no trailing slash in your directive, > you get a leading / in path_info. What would be the filename if the > request URI was /cgi-bin/detail.pl/foo/bar.jpg ? In that case > path_info will be '/foo/bar.jpg'. Maybe what you really want > is > my $filename = (split /\//, $r->path_info)[-1]; Another excellent point! So if I put a trailing / in my directive, I won't get the leading / and path_info will be just the information I need? That's what I really wanted, and it's a simple solution as well. Thanks! :-) -- Drew Taylor Vialogix Communications, Inc. 501 N. College Street Charlotte, NC 28202 704 370 0550 http://www.vialogix.com/
Re: $r->path_info question
Drew Taylor said... > Hi all, Hi. > I currently am using > > my $filename = (split /\//, $r->path_info)[1]; > > but it seems like such a hack. What is the "suggested" way to get the > "A1234567.jpg" part of the above URL? Since Apache sets path_info by scanning the physical filesystem, and since you are overcoming legacy calls to a script inside cgi-bin, your solution is probably just fine. I had a similar issue in the past: http://forum.swarthmore.edu/epigone/modperl/smumbabax As Doug mentions in that thread, $r->location might be of some assistance. Hope this helps. -- David S. Kenzik [EMAIL PROTECTED] - http://kenzik.com
