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[MyWeb.git] / Web.pm
diff --git a/Web.pm b/Web.pm
index d59e454..885620d 100644 (file)
--- a/Web.pm
+++ b/Web.pm
@@ -23,13 +23,45 @@ our $CVS_ID=q$Id$;
 use strict;
 use warnings;
 
-use lib qw(/home/short/lib/perl5/site_perl/5.6.0/i386-linux /home/short/lib/perl5/site_perl/5.6.0 /home/short/lib/perl5/site_perl/i386-linux /home/short/lib/perl5/site_perl /home/short/lib/perl5/5.6.0/i386-linux /home/short/lib/perl5/5.6.0 /home/short/lib/perl5/i386-linux /home/short/lib/perl5);
-
 use Exporter;
-our @EXPORT=qw(&require &a_href &a_href_cz &vskip &img $W);
+sub Wrequire ($);
+sub Wuse ($@);
+our $W;
+our @EXPORT=qw(&Wrequire &Wuse &a_href &a_href_cz &vskip &img $W &top_dir &top_dir_disk);
 our @ISA=qw(Exporter);
 
-use WebConfig; # for %WebConfig
+BEGIN
+{
+       sub Wrequire ($)
+       {
+       my($file)=@_;
+
+#              print STDERR "Wrequire $file\n";
+               $file=~s#/#::#g;
+               $file=~s/[.]pm$//;
+               my $class=$file;
+               $file=~s#::#/#g;
+               $file.=".pm";
+               my $aref=($W->{"packages_used"}{$Apache::Registry::curstash}||=[]);
+               push @$aref,$class
+                               if !{ map(($_=>1),@$aref) }->{$class};  # Prevent duplicated entries.
+               CORE::require $file;
+               1;      # Otherwise 'require' would already file above.
+       }
+
+       sub Wuse ($@)
+       {
+       my($file,@list)=@_;
+
+#              print STDERR "Wuse $file\n";
+               Wrequire $file;
+               local $Exporter::ExportLevel=$Exporter::ExportLevel+1;
+               $file->import(@list);
+               1;
+       }
+}
+
+BEGIN { Wuse 'WebConfig'; }    # for %WebConfig
 require CGI;   # for &escapeHTML
 require Image::Size;   # for &imgsize
 use File::Basename;    # &basename
@@ -46,7 +78,7 @@ delete $ENV{"PERLLIB"};
 delete $ENV{"LD_LIBRARY_PATH"};
 
 
-our $W;
+#our $W;
                # $W->{"title"}
                # $W->{"head"}
                # $W->{"head_css"}
@@ -63,7 +95,9 @@ sub init ($%)
 {
 my($class,%args)=@_;
 
+       my $packages_used_save=$W->{"packages_used"};
        $W={ %WebConfig,%args };        # override %WebConfig settings
+       $W->{"packages_used"}=$packages_used_save;
 
        $W->{"__PACKAGE__"}||="Apache::ROOT".$Apache::Registry::curstash;
 
@@ -72,6 +106,7 @@ my($class,%args)=@_;
        do { $W->{$_}=0  if !defined $W->{$_}; } for ("detect_ent");
        do { $W->{$_}=0  if !defined $W->{$_}; } for ("detect_js");
        do { $W->{$_}=1  if !defined $W->{$_}; } for ("have_css");      # AFAIK it does not hurt anyone.
+       do { $W->{$_}=1  if !defined $W->{$_}; } for ("heading");
        do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer");
        do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer_delimit");
        do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer_mailme");
@@ -121,7 +156,7 @@ my($class,%args)=@_;
 
        $W->{"have_js"}=($W->{"args"}{"have_js"} ? 1 : 0);
        if ($W->{"detect_js"} && !$W->{"have_js"}) {
-               $W->{"head"}.='<script type="text/javascript" src="'.$W->{"top_dir"}.'/have_js.js.pl"></script>'."\n";
+               $W->{"head"}.='<script type="text/javascript" src="'.top_dir().'/have_js.js.pl"></script>'."\n";
                }
 
        do { args_check(%$_) if $_; } for ($W->{"args_check"});
@@ -129,20 +164,22 @@ my($class,%args)=@_;
        return $W;
 }
 
-sub require ($)
+sub top_dir_disk ()
 {
-my($file)=@_;
-
-       $file=~s#/#::#g;
-       $file=~s/[.]pm$//;
-       my $class=$file;
-       $file=~s#::#/#g;
-       $file.=".pm";
-       my $aref=($W->{"packages_used"}{$Apache::Registry::curstash}||=[]);
-       push @$aref,$class
-                       if !{ map(($_=>1),@$aref) }->{$class};  # Prevent duplicated entries.
-       CORE::require $file;
-       1;      # Otherwise 'require' would already file above.
+       do { return $_ if $_; } for ($W->{"top_dir"});
+       return $INC[0]; # fallback
+}
+
+sub top_dir ()
+{
+       if (my $uri=$ENV{"REQUEST_URI"}) {
+               $uri.="Index" if $uri=~m#/$#;
+               $uri=~s#^/*##;
+               $uri=~s#[^/]+#..#g;
+               $uri=File::Basename::dirname($uri);
+               return $uri;
+               }
+       return top_dir_disk();
 }
 
 sub fatal (;$);
@@ -152,13 +189,13 @@ sub args_check (%)
 my(%tmpl)=@_;
 
        while (my($name,$regex)=each(%tmpl)) {
-               my $name_html="Parametr <span class=\"quote\">".CGI::escapeHTML($name)."</span>";
+               my $name_html="Parameter <span class=\"quote\">".CGI::escapeHTML($name)."</span>";
+               $W->{"args"}{$name}="" if !defined $W->{"args"}{$name};
                my $val=$W->{"args"}{$name};
+               $val="" if !defined $val;
                fatal "$name_html <span class=\"quote\">".CGI::escapeHTML($val)."</span>"
-                                               ." does not match required regex <span class=\"quote\">".CGI::escapeHTML($regex)."</span>"
-                               if defined $val && $val!~/$regex/;
-               fatal "$name_html is required"
-                               if !defined $val;
+                                               ." does not match required regex <span class=\"quote\">".CGI::escapeHTML($regex)."</span> "
+                               if $regex ne "" && $val!~/$regex/;
                }
 }
 
@@ -191,12 +228,12 @@ sub footer (;$)
        print "<hr />\n" if $W->{"footer"};
 
        if ($W->{"footer_mailme"}) {
-               print '<form action="'.$W->{"top_dir"}.'/SendMsg.pl" method="post" onsubmit="'
+               print '<form action="'.top_dir().'/SendMsg.pl" method="post" onsubmit="'
                                ."this.elements['msgscript'].value=this.elements['msghtml'].value;"
                                ."this.elements['msghtml'].value='';"
                                ."this.submit();"
                                .'">'."\n";
-                       print '<p align="center">'."\n";
+                       print '<p align="right">'."\n";
                                print '<input name="msgscript" type="hidden" />'."\n";
                                print '<input name="msghtml" type="text" size="32" alt="Message" />'."\n";
                                print '<input name="submit" type="submit" value="Quick Note" />'."\n";
@@ -222,7 +259,7 @@ sub footer (;$)
                                        my $ext;
                                        for (qw(.html.pl .pl .pm),"") {
                                                $ext=$_;
-                                               last if -r $W->{"top_dir"}."/$file$ext";
+                                               last if -r top_dir()."/$file$ext";
                                                cluck "Class file $file not found" if !$ext;
                                                }
                                        $file.=$ext;
@@ -238,11 +275,26 @@ sub footer (;$)
                        } (
                                        $W->{"__PACKAGE__"},
                                        __PACKAGE__,
-                                       "WebConfig",
                                        @{$W->{"packages_used"}{$Apache::Registry::curstash}},
                                        )));
                print "</p>\n";
                }
+
+       for my $package (
+                       $W->{"__PACKAGE__"},
+                       __PACKAGE__,
+                       @{$W->{"packages_used"}{$Apache::Registry::curstash}},
+                       ) {
+               my $cvs_id=(eval('$'.$package."::CVS_ID")
+#                              || $package     # debug
+                               );
+               print '<!-- '.$package.' - $'.$cvs_id.'$ -->'."\n" if $cvs_id;
+               }
+
+       if ($W->{"heading"}) {
+               do { &{$_}() if $_; } for ($W->{"footing"});
+               }
+
        print "</body></html>\n";
        exit(0);
 }
@@ -286,8 +338,10 @@ sub a_href ($;$%)
 {
 my($url,$contents,%args)=@_;
 
-       do { $$_=1 if !defined $$_; } for ($args{"size"});
+       do { $$_=1 if !defined $$_; } for (\$args{"size"});
        $contents=CGI::escapeHTML($url) if !defined $contents;
+       $contents=~s#<a\b[^>]*>##gi;
+       $contents=~s#</a>##gi;
 
        my $r='<a href="';
        my $urlent=CGI::escapeHTML($url);
@@ -300,9 +354,11 @@ my($url,$contents,%args)=@_;
        elsif ($W->{"have_ent"})        # ent client
                { $r.=$urlent; }
        else    # unknown client, &CGI::escapeHTML should not be needed here
-               { $r.=CGI::escapeHTML("http://".$W->{"r"}->hostname()."/Redirect.pl?location=".uri_escape($url)); }
-       $r.='">'.$contents.'</a>';
-       if ($args{"size"} && url_is_local($url) && $url=~/[.](?:gz|rpm|zip|deb)/) {     # Downloadable?
+               { $r.=CGI::escapeHTML(top_dir()."/Redirect.pl?location=".uri_escape($url)); }
+       $r.='"';
+       do { $r.=" $_" if $_; } for ($args{"attr"});
+       $r.='>'.$contents.'</a>';
+       if ($args{"size"} && url_is_local($url) && $url=~/[.](?:gz|Z|rpm|zip|deb|lha)/) {       # Downloadable?
                if (!-r $url)
                        { cluck "File not readable: $url"; }
                else {
@@ -319,14 +375,13 @@ sub remote_ip ()
        # As 'Apache::ForwardedFor' takes the first of $ENV{"HTTP_X_FORWARDED_FOR"}
        # while the contents is '127.0.0.1, 213.220.195.171' if client has its own proxy.
        # We must take the last item ourselves.
-       my $r=$ENV{"HTTP_X_FORWARDED_FOR"} || $W->{"r"}->remote_host();
+       my $r=$ENV{"HTTP_X_FORWARDED_FOR"} || $W->{"r"}->get_remote_host();
        $r=~s/^.*,\s*//;
        return $r;
 }
 
 sub is_cz ()
 {
-print STDERR "IP=".remote_ip()."\n";
        return "CZ" eq Geo::IP->new()->country_code_by_addr(remote_ip());
 }
 
@@ -360,35 +415,40 @@ my @img_variants=(
                );
 my $img_variants_re='[.](?:'.join('|',map(($_->{"id"}),@img_variants)).')$';
 
+sub img_src ($)
+{
+my($file_base)=@_;
+
+       return $file_base if !url_is_local($file_base)
+                       # Known image extension?
+                       || $file_base=~m#$img_variants_re#o;
+
+       my @nego_variants;
+       for my $var (@img_variants) {
+               my $file=$file_base.".".$var->{"id"};
+               # TODO: Somehow quickly check dependencies?
+               system 'make >&2 -s --no-print-directory'
+                                               .' -C '."'".File::Basename::dirname($file)."' '".File::Basename::basename($file)."'"
+                               if !-f $file;
+               push @nego_variants,negotiate_variant(
+                               %$var,
+                               "size"=>(stat $file)[7],
+                               );
+               }
+       # Do not: ,$W->{"r"});
+       # but should we provide somehow either 'HTTP::Headers' or 'HTTP::Request' ?
+       my $ext=HTTP::Negotiate::choose(\@nego_variants);
+       $ext||=$img_variants[0]->{"id"};        # &HTTP::Negotiate::choose failed?
+       return $file_base.".".$ext;
+}
+
 sub img ($$;$)
 {
 my($file_base,$alt,$attrs)=@_;
 
-       my $file;
-       if (url_is_local($file_base)
-                       # No known image extension?
-                       && $file_base!~m#$img_variants_re#o) {
-               my @nego_variants;
-               for my $var (@img_variants) {
-                       $file=$file_base.".".$var->{"id"};
-                       # TODO: Somehow quickly check dependencies?
-                       system 'make >&2 -s --no-print-directory'
-                                                       .' -C '."'".File::Basename::dirname($file)."' '".File::Basename::basename($file)."'";
-#                                      if !-f $file;
-                       push @nego_variants,negotiate_variant(
-                                       %$var,
-                                       "size"=>(stat $file)[7],
-                                       );
-                       }
-               # Do not: ,$W->{"r"});
-               # but should we provide somehow either 'HTTP::Headers' or 'HTTP::Request' ?
-               my $ext=HTTP::Negotiate::choose(\@nego_variants);
-               $ext||=$img_variants[0]->{"id"};        # &HTTP::Negotiate::choose failed?
-               $file=$file_base.".".$ext;
-               }
-       else
-               { $file=$file_base; }
+       my $file=img_src $file_base;
        my($width,$height)=Image::Size::imgsize($file);
+       $alt=~s/<[^>]*>//g;
        $alt=CGI::escapeHTML($alt);
        return "<img src=\"$file\" alt=\"$alt\" title=\"$alt\" ".img_size($width,$height)
                        .(!$attrs ? "" : " ".$attrs)." />";
@@ -440,9 +500,10 @@ my($class)=@_;
                }
        print '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'."\n";
        print '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">'."\n";
-       print '<head><title>'.CGI::escapeHTML($W->{"title_prefix"})
-                       .join("",map({ ': '.CGI::escapeHTML($_); } ($W->{"title"} || ())))
-                       .'</title>'."\n";
+       my $title=$W->{"title_prefix"}.join("",map({ ': '.$_; } ($W->{"title"} || ())));
+       $title=~s#<[^>]*>##g;
+       print "<head>";
+       print "<title>$title</title>\n";
 
        if ($W->{"have_css"}) {
                print <<'HERE';
@@ -475,6 +536,10 @@ HERE
        print ' bgcolor="black" text="white" link="aqua" vlink="teal"'
                        if $W->{"browser"}->netscape() && $W->{"browser"}->major<=4;
        print ">\n";
+
+       if ($W->{"heading"}) {
+               do { &{$_}() if $_; } for ($W->{"heading"});
+               }
 }
 
 1;