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# url handler -> returns the location of the file |
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# |
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# Interface |
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# url handler -> returns the location of thefilu&# Interface |
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# --------- |
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# new() : |
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# new(cachedir) : A new urlhandler with a defined default cahce directory |
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# get(url) : download from the specified url to the default cache |
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# get(url,location) : dowload to the specified directory |
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# setcvsco("checkout_cmd") : Default cvs is "co" change with this cmd |
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# setbase(type,@args) : set the url defaults for a specific url type |
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# arguments are dependent on type |
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# http: |
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# file: |
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# cvs: servername,servertype [ ,user,passkey ] |
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# label: |
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# get(url,dirlocation) : download to the specified directory |
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# setbase(type,variablehash) : set the url defaults for a specific url type |
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# arguments are dependenton type |
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# unsetbase(type) : deactivate a previously set base |
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# usedb($data) : Set databasecontainer from which to search for tags |
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# setcache(dir) : set the default cache location |
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# |
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# ---------------------------------------------------------------------- |
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# returns file location - or crashes out |
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# can pass a file name for the item to be stored as |
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# if not then stores in a default cache. |
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package URLhandler; |
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package URL::URLhandler; |
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require 5.004; |
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use Utilities::AddDir; |
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use URL::URL_base; |
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use Carp; |
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sub new { |
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if (! defined $cache ) { $cache="/tmp/SCRAMcache" }; # default cache |
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AddDir::adddir($cache); |
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$self->{cache}=$cache; |
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$self->{cvsco}="co"; |
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@{$self->{urltypes}} = qw(label file cvs http); |
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use URL::URL_cvs; |
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use URL::URL_cvsfile; |
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use URL::URL_file; |
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$self->{urlmodules}={ |
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'cvsfile' => 'URL::URL_cvsfile', |
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'cvs' => 'URL::URL_cvs', |
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'file' => 'URL::URL_file' |
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}; |
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$self->{filebase}=""; |
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$self->setbase("file", {}); # Base file as default |
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} |
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|
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sub setcache { |
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my $self=shift; |
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my $cache=shift; |
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|
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$self->{cache}=$cache; |
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} |
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sub get ($@) { |
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my $self=shift; |
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my $origurl=shift; |
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my $filename=shift; |
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my $dirname=shift; |
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my $rest; |
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my $type; |
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my $url; |
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my $version; |
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my $rv=""; |
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|
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if ( ! defined $filename ) { |
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$filename=""; |
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if ( ! defined $dirname ) { |
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$dirname=$self->{cache}; |
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} |
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chdir $dirname or carp "Unable to Enter Directory $dirname $!\n"; |
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chomp $origurl; |
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# get our version info from the url (after last ??) |
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( $url, $version) = split /\?\?/, $origurl; |
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else { |
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$type='label'; |
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$rest=$url.":".$version; |
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} |
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foreach $ty ( @{$self->{urltypes}} ) { |
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do { return &$ty($self, $rest, $filename); $supported='yes'; last;} |
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, if $type eq $ty; |
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} |
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if ( ! ( $supported=~/yes/ )) { |
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} |
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if ( ! ( exists $self->{'urlmodules'}{$type}) ) { |
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print "URLhandler: Unsupported type $type\n"; |
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carp; |
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} |
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} |
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|
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sub usedb { |
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my $self=shift; |
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my $db=shift; |
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|
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$self->{db}=$db; |
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print "URLhandler warning: db containers not yet Implemented\n"; |
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} |
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# |
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# setcvsco --- to change nature of cvs co (e.g "export" rather than "co") |
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# |
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sub setcvsco { |
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my $self=shift; |
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$self->{cvsco}=shift; |
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else { |
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if ( $#{$self->{urlostack}{$type}} < 0 ) { |
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print "URLhandler : base not set for type $type \n"; |
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} |
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else { |
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$rv= |
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eval{${$self->{urlostack}{$type}}[$#{$self->{urlostack}{$type}}]}-> |
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get($rest, $dirname); |
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} |
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} |
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if ( $rv ne "" ) { |
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$rv=$dirname."/".$rv; |
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} |
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return $rv; |
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} |
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sub setbase { |
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my $self=shift; |
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my $type=shift; |
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my @args=@_; |
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my $oref; |
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# Check type is supported |
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if ( ! grep( $type, @{$self->{urltypes}}) ) { |
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if ( ! exists $self->{urlmodules}{$type} ) { |
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print "URLhandler error: Unsupported type $type\n"; |
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return 1; |
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} |
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else { |
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&{$type."_setbase"}($self,@args); |
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# A new URL object - pushed onto the stack |
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$oref=eval{$self->{urlmodules}{$type}}->new(); |
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push @{$self->{urlostack}{$type}}, $oref; |
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$oref->setbase(@args); |
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} |
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} |
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sub unsetbase { |
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my $self=shift; |
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my $type=shift; |
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my $oref; |
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# Check type is supported |
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if ( ! grep( $type, @{$self->{urltypes}}) ) { |
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if ( ! exists $self->{urlmodules}{$type} ) { |
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print "URLhandler error: Unsupported type $type\n"; |
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return 1; |
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} |
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else { |
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&{$type."_unsetbase"}($self, @args); |
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} |
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} |
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|
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# ------------------------- Type Support Routines ---------------------------- |
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# |
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# label: |
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# |
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sub label { |
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my $self=shift; |
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my $label=shift; |
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my $filename=shift; |
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my $returnval=""; |
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|
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open ( LOOKUP, "$ENV{SCRAM_LOOKUPDB}" ) |
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|| die "URLhandler: Unable to open DataBase $ENV{SCRAM_LOOKUPDB} $!"; |
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while ( <LOOKUP> ) { |
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next if /^#/; |
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if ( $_=~s/^$label\:// ) { |
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$returnval = urlhandler($_,$filename); |
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# pop off the stack and call the unset base method |
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if ( $#{$self->{urlostack}{$type}} >=0 ) { |
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$oref=pop @{$self->{urlostack}{$type}}; |
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$oref->unsetbase(); |
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undef $oref; |
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} |
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} |
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close LOOKUP; |
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if ( $returnval ne "" ) { |
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return $returnval; |
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} |
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($proj,$ver)=split /:/, $label; |
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print "Error : Unknown project name or version (".$proj." ".$ver.")\n"; |
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carp; |
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} |
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sub label_setbase { |
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my $self=shift; |
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} |
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sub label_unsetbase { |
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my $self=shift; |
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} |
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|
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# |
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# file: |
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# |
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sub file { |
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my $self=shift; |
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use File::Copy; |
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my $urlfile=shift; |
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my $filename=shift; |
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|
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if ( $self->{filebase} ne "" ) { # add a base if it exists |
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$urlfile=$self->{filebase}."/".$urlfile; |
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} |
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if ( -e "$urlfile" ) { |
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if ( $filename ne "" ) { |
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copy ( $urlfile, $filename ) || return $urlfile; |
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return $filename; |
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else { |
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print "URLhandler error: Unable to unset type $type\n"; |
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return 1; |
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} |
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return $urlfile; |
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} |
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else { |
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print "URLhandler: Unable to find file $urlfile : $!\n"; |
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die ""; |
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} |
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} |
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|
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# |
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# |
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# |
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sub file_setbase { |
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my $self=shift; |
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my $filebase=shift; |
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|
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if ( -d $filebase ) { |
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$self->{filebase}=$filebase; |
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push @{$self->{filebasestack}}, $self->{filebase}; |
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} |
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else { |
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print "Directory Does Not Exist \n"; |
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carp; |
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} |
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} |
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|
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sub file_unsetbase { |
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my $self=shift; |
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pop @{$self->{filebasestack}}; |
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$self->{filebase}=@{$self->{filebasestack}} |
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[$#{$self->{filebasestack}}]; |
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} |
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|
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# |
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# cvs: |
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# |
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|
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sub cvs { |
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my $self=shift; |
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my $url=shift; |
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my $dirname=shift; |
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|
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my $cvscmd; |
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my $module; |
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my $version=""; |
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|
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# Where should we co to? |
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if ( $dirname eq "" ) { |
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$dirname=$self->{cache}; |
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} |
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|
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# Split up our url into its components |
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if ( $url=~/\?/ ) { |
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($module, $version)= split /\?/, $url; |
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} |
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print $url." -----\n"; |
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|
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if ( $version ne "" ) { |
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$cvscmd=$self->{cvsco}." -r $version"; |
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} |
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else { |
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$cvscmd=$self->{cvsco}; |
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} |
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# |
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# Check to see we have a server and if so attempt the checkout |
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# |
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if ( ! defined $self->{cvsobject} ) { |
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print "urlhandler error: undefined cvs server for $module\n"; |
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return 1; |
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} |
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else { |
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chdir $dirname or carp "Unable to Enter Directory $dirname $!\n"; |
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$self->{cvsobject}->invokecvs($cvscmd, $module); |
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} |
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} |
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|
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sub cvs_setbase { |
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my $self=shift; |
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my $base=shift; |
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my $auth=shift; |
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my $user=shift; |
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my $passkey=shift; |
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use Utilities::CVSmodule; |
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|
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# Push a new cvs object onto the cvs stack |
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$self->{cvsobject}=CVSmodule->new(); |
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push @{$self->{cvsobjectstack}},$self->{cvsobject}; |
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$self->{cvsobject}->set_base($base); |
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$self->{cvsobject}->set_auth($auth); |
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if ( $user ne "" ) { |
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$self->{cvsobject}->set_user($user); |
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} |
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if ( $passkey ne "" ) { |
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$self->{cvsobject}->set_passkey($passkey); |
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} |
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} |
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|
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sub cvs_unsetbase { |
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my $self=shift; |
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pop @{$self->{cvsobjectstack}}; |
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$self->{cvsobject}=@{$self->{cvsobjectstack}} |
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[$#{$self->{cvsobjectstack}}]; |
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} |
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|
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# |
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# http: |
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# |
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|
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sub http { |
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my $self=shift; |
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my $urlfile=shift; |
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my $filename=shift; |
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# use LWP::Simple; |
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print "Hello $filename, $urlfile\n"; |
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# open (STORE, ">$filename") || carp "unable to open file $filename $!\n"; |
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# print STORE (get 'http:'.$urlfile); |
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close STORE; |
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} |
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|
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sub http_setbase { |
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my $self=shift; |
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} |
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|
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sub http_unsetbase { |
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my $self=shift; |
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} |
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|
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# ------------------------ General Support Routines ---------------------------- |
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|
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sub cachefilename { |
