| 1 |
|
# url handler -> returns the location of the file |
| 2 |
– |
# |
| 2 |
|
# Interface |
| 3 |
|
# --------- |
| 4 |
< |
# new() : |
| 5 |
< |
# new(cachedir) : A new urlhandler with a defined default cahce directory |
| 6 |
< |
# get(url) : download from the specified url to the default cache |
| 7 |
< |
# get(url,location) : download to the specified directory |
| 8 |
< |
# setbase(type,@args) : set the url defaults for a specific url type |
| 10 |
< |
# arguments are dependent on type |
| 11 |
< |
# http: |
| 12 |
< |
# file: |
| 13 |
< |
# cvs: servername,servertype [ ,user,passkey ] |
| 14 |
< |
# label: |
| 4 |
> |
# new(cache) : A new urlhandler with a defined default cahce directory |
| 5 |
> |
# get(url) : download from the specified url to the default cache |
| 6 |
> |
# getto(url,dirlocation): download to the specified directory - no cache registry |
| 7 |
> |
# setbase(type,variablehash) : set the url defaults for a specific url type |
| 8 |
> |
# arguments are dependent on type |
| 9 |
|
# unsetbase(type) : deactivate a previously set base |
| 10 |
|
# |
| 11 |
|
# ---------------------------------------------------------------------- |
| 13 |
|
# can pass a file name for the item to be stored as |
| 14 |
|
# if not then stores in a default cache. |
| 15 |
|
|
| 16 |
< |
package URLhandler; |
| 16 |
> |
package URL::URLhandler; |
| 17 |
|
require 5.004; |
| 18 |
|
use Utilities::AddDir; |
| 19 |
+ |
use URL::URLUtilities; |
| 20 |
+ |
use URL::URL_base; |
| 21 |
|
use Carp; |
| 22 |
|
|
| 23 |
|
sub new { |
| 30 |
|
} |
| 31 |
|
|
| 32 |
|
sub init { |
| 33 |
+ |
use URL::URLcache; |
| 34 |
|
use Utilities::AddDir; |
| 35 |
|
my $self=shift; |
| 36 |
|
my $cache=shift; |
| 40 |
– |
if (! defined $cache ) { $cache="/tmp/SCRAMcache" }; # default cache |
| 41 |
– |
AddDir::adddir($cache); |
| 37 |
|
$self->{cache}=$cache; |
| 38 |
+ |
$self->{cachestore}=$self->{cache}->filestore(); |
| 39 |
|
use URL::URL_cvs; |
| 40 |
+ |
use URL::URL_cvsfile; |
| 41 |
|
use URL::URL_file; |
| 42 |
+ |
use URL::URL_filed; |
| 43 |
|
$self->{urlmodules}={ |
| 44 |
< |
'cvs' => 'URL_cvs', |
| 45 |
< |
'file' => 'URL_file' |
| 44 |
> |
'cvsfile' => 'URL::URL_cvsfile', |
| 45 |
> |
'cvs' => 'URL::URL_cvs', |
| 46 |
> |
'file' => 'URL::URL_file', |
| 47 |
> |
'filed' => 'URL::URL_filed' |
| 48 |
|
}; |
| 49 |
|
$self->{filebase}=""; |
| 50 |
|
$self->setbase("file", {}); # Base file as default |
| 51 |
+ |
$self->setbase("filed", {}); # Base file as default |
| 52 |
|
} |
| 53 |
|
|
| 54 |
< |
sub get ($@) { |
| 54 |
> |
# |
| 55 |
> |
sub get { |
| 56 |
|
my $self=shift; |
| 57 |
< |
my $origurl=shift; |
| 56 |
< |
my $filename=shift; |
| 57 |
< |
my $rest; |
| 58 |
< |
my $type; |
| 59 |
< |
my $url; |
| 60 |
< |
my $version; |
| 57 |
> |
my $url=shift; |
| 58 |
|
|
| 59 |
< |
if ( ! defined $filename ) { |
| 60 |
< |
$filename=$self->{cache}; |
| 61 |
< |
} |
| 62 |
< |
chomp $origurl; |
| 63 |
< |
# get our version info from the url (after last ??) |
| 64 |
< |
( $url, $version) = split /\?\?/, $origurl; |
| 65 |
< |
if ( $url=~/:/ ) { |
| 66 |
< |
($type,$rest) = split /:/, $url; |
| 67 |
< |
} |
| 71 |
< |
else { |
| 72 |
< |
$type='label'; |
| 73 |
< |
$rest=$url.":".$version; |
| 59 |
> |
|
| 60 |
> |
my ($urlstring, $type, $urltypehandler, $base, $version) |
| 61 |
> |
=$self->_urlexpand($url); # get a unique url string |
| 62 |
> |
my $rv=""; |
| 63 |
> |
$rv=$self->getto($url,$self->{cache}->filename($urlstring)); |
| 64 |
> |
|
| 65 |
> |
# now register it in the cache if successful |
| 66 |
> |
if ( $rv ne "" ) { |
| 67 |
> |
$self->{cache}->store($urlstring, $rv); |
| 68 |
|
} |
| 69 |
< |
if ( ! ( exists $self->{'urlmodules'}{$type}) ) { |
| 70 |
< |
print "URLhandler: Unsupported type $type\n"; |
| 71 |
< |
carp; |
| 72 |
< |
} |
| 73 |
< |
else { |
| 74 |
< |
eval{${$self->{urlostack}{$type}}[$#{$self->{urlostack}{$type}}]}-> |
| 75 |
< |
get($rest, $filename); |
| 69 |
> |
return $rv; |
| 70 |
> |
} |
| 71 |
> |
|
| 72 |
> |
sub getto ($@) { |
| 73 |
> |
my $self=shift; |
| 74 |
> |
my $origurl=shift; |
| 75 |
> |
my $dirname=shift; |
| 76 |
> |
|
| 77 |
> |
my $rv=""; |
| 78 |
> |
|
| 79 |
> |
# Process the URL string |
| 80 |
> |
my ($type,$rest,$version)=URLUtilities::parseURL($origurl); |
| 81 |
> |
my ($urltypehandler, $base)=$self->_typecheck($type); |
| 82 |
> |
|
| 83 |
> |
if ( defined $urltypehandler ) { |
| 84 |
> |
# Call the download module |
| 85 |
> |
$rv=eval{$urltypehandler->get($rest.(($version ne "")?"\?".$version:""), $dirname); }; |
| 86 |
|
} |
| 87 |
+ |
return $rv; |
| 88 |
|
} |
| 89 |
|
|
| 90 |
|
sub setbase { |
| 130 |
|
} |
| 131 |
|
} |
| 132 |
|
|
| 133 |
< |
# ------------------------ General Support Routines ---------------------------- |
| 133 |
> |
# -------------------- Support Routines (private Methods) ------------- |
| 134 |
> |
|
| 135 |
> |
# |
| 136 |
> |
# Process the URL string into its component parts |
| 137 |
> |
# |
| 138 |
> |
sub _typecheck { |
| 139 |
> |
my $self=shift; |
| 140 |
> |
my $type=shift; |
| 141 |
> |
|
| 142 |
> |
my $base=""; |
| 143 |
> |
|
| 144 |
> |
# check type are supported |
| 145 |
> |
if ( ! ( exists $self->{'urlmodules'}{$type}) ) { |
| 146 |
> |
print "URLhandler: Unsupported type $type\n"; |
| 147 |
> |
die; |
| 148 |
> |
} |
| 149 |
> |
else { |
| 150 |
> |
if ( $#{$self->{urlostack}{$type}} < 0 ) { |
| 151 |
> |
print "URLhandler : base not set for type $type \n"; |
| 152 |
> |
die; |
| 153 |
> |
} |
| 154 |
> |
else { |
| 155 |
> |
# ---- type is supported |
| 156 |
> |
$urltypehandler= |
| 157 |
> |
${$self->{urlostack}{$type}}[$#{$self->{urlostack}{$type}}]; |
| 158 |
> |
$base=$urltypehandler->baseurl(); |
| 159 |
> |
} |
| 160 |
> |
} |
| 161 |
|
|
| 162 |
< |
sub cachefilename { |
| 131 |
< |
my $self=shift; |
| 132 |
< |
use File::Basename; |
| 133 |
< |
use Utilities::AddDir; |
| 134 |
< |
my $filebase=dirname($rest); |
| 135 |
< |
$cache="/tmp/williamc/urlhandler$$"; |
| 136 |
< |
adddir($cache); |
| 137 |
< |
$filename=$cache."/".$filebase; |
| 162 |
> |
return $urltypehandler, $base; |
| 163 |
|
} |
| 164 |
|
|
| 165 |
+ |
sub _urlexpand { |
| 166 |
+ |
my $self=shift; |
| 167 |
+ |
my $url=shift; |
| 168 |
+ |
|
| 169 |
+ |
my ($type,$rest,$cmds)=URLUtilities::parseURL($url); |
| 170 |
+ |
my ($urltypehandler, $base)=$self->_typecheck($type); |
| 171 |
+ |
|
| 172 |
+ |
my $expurl=$type.":".($base ne ""?$base."/":"").$rest. |
| 173 |
+ |
($cmds ne ""?"\?".$cmds:""); |
| 174 |
+ |
return $expurl; |
| 175 |
+ |
} |
