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#
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# SimpleURLDoc.pm. - Extends SimpleDoc with URL download functionality
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#
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# Originally Written by Christopher Williams
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#
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# Description
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# -----------
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#
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# Interface
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# ---------
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# new(URLcache[,DocVersionTag] : A new SimpleURLDoc object. You can also
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# specify an alternative doc version tag
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# addbasetags(parse) : Add Base Tags to the given parse
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# urlget(urlstring[,location]) : get the given url. Returns (url, filename)
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# expandurl(urlstring) : return a URLclass object of the given url expanded
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# according to the base settings
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# cache([cache]) : get/set the current URL cache
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# doctype() : return the (type,version) of the document
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# as specified by the DocVersionTag
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package ActiveDoc::SimpleURLDoc;
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use ActiveDoc::SimpleDoc;
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use URL::URLhandler;
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require 5.001;
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sub new {
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my $class=shift;
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my $self={};
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bless $self, $class;
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$self->cache(shift);
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$self->{switch}=ActiveDoc::SimpleDoc->new(@_);
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return $self;
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}
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sub addbasetags {
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my $self=shift;
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my $parse=shift;
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$self->{switch}->addtag($parse,"base", \&Base_start, $self,
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"", $self,
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\&Base_end,$self);
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}
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sub cache {
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my $self=shift;
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if ( @_ ) {
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$self->{cache}=shift;
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$self->{urlhandler}=URL::URLhandler->new($self->{cache});
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}
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return $self->{cache};
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}
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sub expandurl {
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my $self=shift;
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my $urlstring=shift;
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return $self->{urlhandler}->expandurl($urlstring);
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}
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sub urlget {
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my $self=shift;
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my $urlstring=shift;
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($fullurl,$filename)=$self->{urlhandler}->get($urlstring, @_);
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if ( ( ! defined $filename ) || ( $filename eq "" ) ) {
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$self->{switch}->parseerror("Failed to get $fullurl");
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}
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return ($fullurl,$filename);
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}
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sub AUTOLOAD {
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my $self=shift;
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# dont propogate destroy methods
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return if $AUTOLOAD=~/::DESTROY/;
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# remove this package name
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($name=$AUTOLOAD)=~s/ActiveDoc::SimpleURLDoc:://;
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# pass the message to SimpleDoc
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$self->{switch}->$name(@_);
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}
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# ------------------------ Support Routines ---------------------------
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# ------------------------ Tag Routines -------------------------------
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sub Base_start {
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my $self=shift;
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my $name=shift;
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my $hashref=shift;
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$self->{switch}->checktag($name, $hashref, "url");
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my $url=$self->{urlhandler}->setbase($$hashref{'url'});
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push @{$self->{basestack}}, $url->type();
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}
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sub Base_end {
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my $self=shift;
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if ( $#{$self->{basestack}} >= 0 ) {
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my $type=pop @{$self->{basestack}};
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$self->{urlhandler}->unsetbase($type);
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}
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else {
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$self->{switch}->parseerror("Unmatched <$name>");
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}
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}
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