| 1 |
#!/usr/local/bin/perl5
|
| 2 |
#
|
| 3 |
# url handler -> returns the location of the file
|
| 4 |
#
|
| 5 |
# returns file location - or crashes out
|
| 6 |
# can pass a file name for the item to be stored as
|
| 7 |
# if not then stores in a default cache.
|
| 8 |
|
| 9 |
package urlhandler;
|
| 10 |
require Exporter;
|
| 11 |
@ISA = qw(Exporter);
|
| 12 |
@EXPORT = qw(urlhandler);
|
| 13 |
|
| 14 |
|
| 15 |
sub urlhandler($@) {
|
| 16 |
my $origurl=shift;
|
| 17 |
my $filename=shift;
|
| 18 |
my $rest;
|
| 19 |
my $type;
|
| 20 |
my $url;
|
| 21 |
my $version;
|
| 22 |
|
| 23 |
chomp $origurl;
|
| 24 |
# get our version info from the url (after last ??)
|
| 25 |
( $url, $version) = split /\?\?/, $origurl;
|
| 26 |
if ( $url=~/:/ ) {
|
| 27 |
($type,$rest) = split /:/, $url;
|
| 28 |
}
|
| 29 |
else {
|
| 30 |
$type='label';
|
| 31 |
$rest=$url.":".$version;
|
| 32 |
}
|
| 33 |
|
| 34 |
my @urltypes = qw(label file cvs);
|
| 35 |
foreach $ty ( @urltypes ) {
|
| 36 |
do { return &$ty($rest, $filename); $supported='yes'; last; }
|
| 37 |
if $type eq $ty;
|
| 38 |
}
|
| 39 |
if ( ! ( $supported=~/yes/ )) {
|
| 40 |
print "urlhandler: Unsupported type $type\n";
|
| 41 |
exit 1;
|
| 42 |
}
|
| 43 |
}
|
| 44 |
sub label {
|
| 45 |
my $label=shift;
|
| 46 |
my $filename=shift;
|
| 47 |
my $returnval="";
|
| 48 |
|
| 49 |
open ( LOOKUP, "$ENV{SCRAM_LOOKUPDB}" )
|
| 50 |
|| die "urlhandler: Unable to open DataBase $ENV{SCRAM_LOOKUPDB} $!";
|
| 51 |
while ( <LOOKUP> ) {
|
| 52 |
next if /^#/;
|
| 53 |
if ( $_=~s/^$label\:// ) {
|
| 54 |
$returnval = urlhandler($_,$filename);
|
| 55 |
}
|
| 56 |
}
|
| 57 |
close LOOKUP;
|
| 58 |
return $returnval;
|
| 59 |
|
| 60 |
}
|
| 61 |
|
| 62 |
sub file {
|
| 63 |
use File::Copy;
|
| 64 |
my $urlfile=shift;
|
| 65 |
my $filename=shift;
|
| 66 |
if ( -e "$urlfile" ) {
|
| 67 |
if ( $filename=~/.*/ ) {
|
| 68 |
copy ( $urlfile, $filename ) || return $urlfile;
|
| 69 |
return $filename;
|
| 70 |
}
|
| 71 |
return $urlfile;
|
| 72 |
}
|
| 73 |
else {
|
| 74 |
print "urlhandler: Unable to find file $urlfile : $!\n";
|
| 75 |
exit 1;
|
| 76 |
}
|
| 77 |
}
|
| 78 |
|
| 79 |
sub cvs {
|
| 80 |
print "Coming soon\n";
|
| 81 |
}
|
| 82 |
|
| 83 |
sub cachefilename {
|
| 84 |
use File::Basename;
|
| 85 |
use AddDir;
|
| 86 |
my $filebase=dirname($rest);
|
| 87 |
$cache="/tmp/williamc/urlhandler$$";
|
| 88 |
adddir($cache);
|
| 89 |
$filename=$cache."/".$filebase;
|
| 90 |
}
|
| 91 |
|
