Regex question...?

How can I easily search a web page for relative paths and prepend the FQDN
to them?

For instance, I send a POST request to a server, and get back the
resulting page, and store it in a variable called $page.

When I print $page, it prints correctly, but things like the styelsheet
and images are broken, since they don't reference the site itself.

Ie, $page contains href="/css/stylesheet.css" as part of the code, and I
need to prepedn "http://www.somesite.com to that so that it gives the full
path and things aren't broken.

Thanks for any and all assistance.

bc90021

bc90021 wrote:
[color=blue]
> How can I easily search a web page for relative paths and prepend the FQDN
> to them?
>
> For instance, I send a POST request to a server, and get back the
> resulting page, and store it in a variable called $page.
>
> When I print $page, it prints correctly, but things like the styelsheet
> and images are broken, since they don't reference the site itself.
>
> Ie, $page contains href="/css/stylesheet.css" as part of the code, and I
> need to prepedn "http://www.somesite.com to that so that it gives the full
> path and things aren't broken.
>
> Thanks for any and all assistance.
>
> bc90021[/color]

Hello,

if you search only URIs delimited by " this would do it:
$newstring = preg_replace('/(\/[^"]*)/', $server."\$1", $yourtext);
if the URI can also be separated by a blank choose this:
$newstring = preg_replace('/(\/[^ "]*)( |")/', $server."\$1\$2", $yourtext);

Regards,
David

bc90021 wrote:[color=blue]
>
> How can I easily search a web page for relative paths and prepend the FQDN
> to them?
>
> For instance, I send a POST request to a server, and get back the
> resulting page, and store it in a variable called $page.
>
> When I print $page, it prints correctly, but things like the styelsheet
> and images are broken, since they don't reference the site itself.
>
> Ie, $page contains href="/css/stylesheet.css" as part of the code, and I
> need to prepedn "http://www.somesite.com to that so that it gives the full
> path and things aren't broken.[/color]

Stick a <BASE HREF="http://thesiteaddress.com/pathinfo/"> into the <HEAD>er.
Much easier to do and much less work for your server than preging the whole
thing.

Regards,
Shawn
--
Shawn Wilson
shawn@glassgiant.com
http://www.glassgiant.com

I have a spam filter. Please include "PHP" in the
subject line to ensure I'll get your message.

On Thu, 22 Jan 2004 11:31:58 +0100, David Rybach wrote:
[color=blue]
> bc90021 wrote:
>[/color]
<<SNIP>>[color=blue][color=green]
>> Ie, $page contains href="/css/stylesheet.css" as part of the code, and I
>> need to prepedn "http://www.somesite.com to that so that it gives the full
>> path and things aren't broken.
>>[/color]
> Hello,
>
> if you search only URIs delimited by " this would do it:
> $newstring = preg_replace('/(\/[^"]*)/', $server."\$1", $yourtext);
> if the URI can also be separated by a blank choose this:
> $newstring = preg_replace('/(\/[^ "]*)( |")/', $server."\$1\$2", $yourtext);
>
> Regards,
> David[/color]

David,

This works *perfectly* given what I said above. What I neglected to mention
(because I didn't think of it at the time) is that things like "text/css"
contain a slash, and this works on those as well.

I've used Shawn's suggestion, as that saves significantly on the
processing power, which makes sense given my environment.

Thanks!

bc90021

On Thu, 22 Jan 2004 10:34:06 -0400, Shawn Wilson wrote:
[color=blue]
> bc90021 wrote:[/color]
<<SNIP>>[color=blue][color=green]
>> Ie, $page contains href="/css/stylesheet.css" as part of the code, and I
>> need to prepedn "http://www.somesite.com to that so that it gives the full
>> path and things aren't broken.[/color]
>
> Stick a <BASE HREF="http://thesiteaddress.com/pathinfo/"> into the <HEAD>er.
> Much easier to do and much less work for your server than preging the whole
> thing.
>
> Regards,
> Shawn[/color]

Shawn,

Thanks, that works like a charm. I replaced "<head>" with "<head><base
href...>" in the page and everything loads perfectly.

bc90021

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