Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Andy Colson wrote:
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the
URL parameters, builds the map file (actually I only need to set
some filters in the map file, but the filters need to be built
after running some SQL queries with the passed in parameters).
After the map file is built, mapserv is called (as a shell script),
and the map gets sent to the user. Currently this wrapper is
written in perl - so it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some
sort of variables in the map file to set up my filters - but I
haven't seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested,
perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that).
You said ..perl.. receives the URL parameters ...and... builds the
map file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions and what not. After you load the map you can do things to
it, in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch),
but you can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
Adrian Popa wrote:
Thank you Andy for explaining.
Actually my wrapper is very hard-core, meaning I don't use mapscript
(because I had to build it quickly and didn't have time to research
which was the best approach). Now I have more time and I'd like to tune
things up, so I will definitely start studying mapscript (If you have a
link to a good tutorial/function reference for it I am in your debt).
My wrapper just copied over a template map file, edited it (rewrites
some filters) and then it set
$ENV{'QUERY_STRING'} = $ENV{'QUERY_STRING'}.map=$file;
...and then called
print `/var/www/cgi-bin/mapserv`;
It's barbaric, I know, but it worked for me. :)
It will take a bit of rewrite to add fcgi support and mapscript, but in
the long run it will be more mantainable... :)
Thanks again,
Adrian
So are you using the template html stuff? Humm... I've never used that
stuff, not sure how it'll all translate.
For documentation, I used the mapscript reference:
http://mapserver.org/mapscript/mapscript.html
I found a few example perl scripts that helped with the syntax (my $c =
new mapscript::colorObj(), $c-{blue} = 255;, etc...). Other than that,
I had more problems comming up with nice looking colors for my map, than
actually writing the perl code.
-Andy
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Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
If you can you might want to consider python... the syntax is a little cleaner
with Mapscript. Of course, that's an opinion but I also am a little allergic
to sigils (I get all itchy).
- Original Message
From: Andy Colson a...@squeakycode.net
To: Adrian Popa adrian_gh.p...@romtelecom.ro
Cc: mapserver-users@lists.osgeo.org
Sent: Wed, November 4, 2009 8:38:52 AM
Subject: Re: [mapserver-users] Designing a wrapper around mapserv which can
be used with fcgi
Andy Colson wrote:
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some filters in
the
map file, but the filters need to be built after running some SQL queries
with
the passed in parameters). After the map file is built, mapserv is called (as
a
shell script), and the map gets sent to the user. Currently this wrapper is
written in perl - so it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like to
use
mapserv as a fcgi process (or something faster than plain cgi). My question
is -
how can I /should I build a wrapper around mapserv that can customize the
MAP
file on the fly and run as a fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort of
variables in the map file to set up my filters - but I haven't seen an
example.
Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl. And
perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that). You
said ..perl.. receives the URL parameters ...and... builds the map file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions
and what not. After you load the map you can do things to it, in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch), but
you
can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
Adrian Popa wrote:
Thank you Andy for explaining.
Actually my wrapper is very hard-core, meaning I don't use mapscript
(because I had to build it quickly and didn't have time to research
which was the best approach). Now I have more time and I'd like to tune
things up, so I will definitely start studying mapscript (If you have a
link to a good tutorial/function reference for it I am in your debt).
My wrapper just copied over a template map file, edited it (rewrites
some filters) and then it set
$ENV{'QUERY_STRING'} = $ENV{'QUERY_STRING'}.map=$file;
...and then called
print `/var/www/cgi-bin/mapserv`;
It's barbaric, I know, but it worked for me. :)
It will
Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
I have:
- mapserver running as fastcgi
- php running as fastcgi
I am currently setting up, not sure how this is going to end up; but I
have the structure you mention in mind too.
I hope that since both processes are fcgi they will enhance each other?
But testing will have to prove it in the near future.
Dan Little schreef:
If you can you might want to consider python... the syntax is a little
cleaner with Mapscript. Of course, that's an opinion but I also am a little
allergic to sigils (I get all itchy).
- Original Message
From: Andy Colson a...@squeakycode.net
To: Adrian Popa adrian_gh.p...@romtelecom.ro
Cc: mapserver-users@lists.osgeo.org
Sent: Wed, November 4, 2009 8:38:52 AM
Subject: Re: [mapserver-users] Designing a wrapper around mapserv which can
be used with fcgi
Andy Colson wrote:
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some filters in
the
map file, but the filters need to be built after running some SQL queries
with
the passed in parameters). After the map file is built, mapserv is called
(as a
shell script), and the map gets sent to the user. Currently this wrapper is
written in perl - so it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like to
use
mapserv as a fcgi process (or something faster than plain cgi). My question
is -
how can I /should I build a wrapper around mapserv that can customize the
MAP
file on the fly and run as a fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort of
variables in the map file to set up my filters - but I haven't seen an
example.
Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl. And
perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that). You
said ..perl.. receives the URL parameters ...and... builds the map file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions
and what not. After you load the map you can do things to it, in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch), but
you
can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
Adrian Popa wrote:
Thank you Andy for explaining.
Actually my wrapper is very hard-core, meaning I don't use mapscript
(because I had to build it quickly and didn't have time to research
which was the best approach). Now I have more time and I'd like to tune
things up, so I
Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some
filters in the map file, but the filters need to be built after
running some SQL queries with the passed in parameters). After the
map file is built, mapserv is called (as a shell script), and the map
gets sent to the user. Currently this wrapper is written in perl - so
it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort
of variables in the map file to set up my filters - but I haven't
seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl
fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that).
You said ..perl.. receives the URL parameters ...and... builds the map
file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions and what not. After you load the map you can do things to it,
in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch), but
you can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
___
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mapserver-users@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Thank you Andy for explaining.
Actually my wrapper is very hard-core, meaning I don't use mapscript
(because I had to build it quickly and didn't have time to research
which was the best approach). Now I have more time and I'd like to tune
things up, so I will definitely start studying mapscript (If you have a
link to a good tutorial/function reference for it I am in your debt).
My wrapper just copied over a template map file, edited it (rewrites
some filters) and then it set
$ENV{'QUERY_STRING'} = $ENV{'QUERY_STRING'}.map=$file;
...and then called
print `/var/www/cgi-bin/mapserv`;
It's barbaric, I know, but it worked for me. :)
It will take a bit of rewrite to add fcgi support and mapscript, but in
the long run it will be more mantainable... :)
Thanks again,
Adrian
Andy Colson wrote:
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the
URL parameters, builds the map file (actually I only need to set
some filters in the map file, but the filters need to be built
after running some SQL queries with the passed in parameters).
After the map file is built, mapserv is called (as a shell script),
and the map gets sent to the user. Currently this wrapper is
written in perl - so it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some
sort of variables in the map file to set up my filters - but I
haven't seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested,
perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that).
You said ..perl.. receives the URL parameters ...and... builds the
map file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions and what not. After you load the map you can do things to
it, in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch),
but you can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
--
---
Adrian Popa
NOC Division
Network Engineer
Divizia Centrul National de Operare Retea
Departament Transport IP Metro
Compartiment IP Core Backbone
Phone: +40 21 400 3099
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[mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Hello everyone, I am currently using a wrapper around mapserv which receives the URL parameters, builds the map file (actually I only need to set some filters in the map file, but the filters need to be built after running some SQL queries with the passed in parameters). After the map file is built, mapserv is called (as a shell script), and the map gets sent to the user. Currently this wrapper is written in perl - so it's not terribly fast as a cgi process. While this approach works, it is terribly inefficient. I would like to use mapserv as a fcgi process (or something faster than plain cgi). My question is - how can I /should I build a wrapper around mapserv that can customize the MAP file on the fly and run as a fcgi process? Any ideas on where I should start? An example of such a wrapper? Also, I suspect I can send parameters to mapserver and use some sort of variables in the map file to set up my filters - but I haven't seen an example. Can someone point me to such a documentation? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some
filters in the map file, but the filters need to be built after running
some SQL queries with the passed in parameters). After the map file is
built, mapserv is called (as a shell script), and the map gets sent to
the user. Currently this wrapper is written in perl - so it's not
terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like to
use mapserv as a fcgi process (or something faster than plain cgi). My
question is - how can I /should I build a wrapper around mapserv that
can customize the MAP file on the fly and run as a fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort of
variables in the map file to set up my filters - but I haven't seen an
example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl. And
perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type = mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
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mapserver-users@lists.osgeo.org
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Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some
filters in the map file, but the filters need to be built after
running some SQL queries with the passed in parameters). After the
map file is built, mapserv is called (as a shell script), and the map
gets sent to the user. Currently this wrapper is written in perl - so
it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort
of variables in the map file to set up my filters - but I haven't
seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl
fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
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