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#!/usr/bin/perl
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# This script enables the creation of copies of the www site
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# in only two languages. Default language (see $DEFAULT)
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# and provided language (-p switch) giving preference to
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# the later.
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# (c) Javier Fernández-Sanguino Peña <jfs@debian.org>
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# Distributed under the GNU GPL License (see http://www.gnu.org/gpl)
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# It fixes all the href links in the current directory
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# and all under it depending on the files that exist.
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# Current options
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# -p (obliged): tells which preferred language to use
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# -v (optional): activates verbose output
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# In order to retrieve Debian's website try something
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# like:
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# (for Spanish users)
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# 1.- wget -o debian.log -m -k http://www.es.debian.org
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# 2.- (go to the dir created by wget, in our case www.es.debian.org)
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# 3.- perl intcopy.pl -p es
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#
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# NOTES:
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# 1.- Customize the URL and -p option to fix for your closest mirror and
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# language
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# 2.- after doing this you can remove all other languages
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# besides yours (anyone care to give an easy bash line here?)
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# 3.- afterwards check all URL (try checkbot) and send any bugs regarding
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# bad fixed links to me.
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# TODO:
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# 1.- It currently does not understand # in links and fixes
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# them incorrectly
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use Getopt::Std;
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use IO::File;
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use Cwd;
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use File::Copy;
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use strict;
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use warnings;
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my %opts;
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getopts('vp:d:', \%opts);
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my $POST = $opts{'p'};
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my $DEFAULT = "en"; #Default language is english (en)
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my $INVALID_DIRS = '^\.|\.\.|CVS|\.svn|.git$';
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my $current_dir = $opts{'d'} || getcwd;
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my $verbose = $opts{'v'};
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fixDirectory($current_dir);
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exit 0;
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sub fixDirectory
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{
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my ($directory) = @_;
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my $dir = new IO::File;
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opendir ($dir, $directory) || die ("I cannot read $directory: $!\n");
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while ( my $file = readdir ($dir) )
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{
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next if $file eq '.' or $file eq '..';
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warn "Checking $file\n" if $verbose;
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if ( -d "${directory}/${file}" and not -l "${directory}/${file}" )
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{
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if ( $file =~ /$INVALID_DIRS/ )
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{
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warn "Not a valid dir: $file \n" if $verbose;
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}
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else
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{
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fixDirectory ("${directory}/${file}");
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}
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}
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else
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{
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fix_html_file (${directory},"${directory}/${file}") if $file =~ /.html?$/ ;
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}
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} # del while
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} #de la subrutina
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sub fix_html_file
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{
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# This is a html file
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my ($directory,$file) = @_;
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warn "Opening the file $file.\n" if $verbose;
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open (FICHERO, "<${file}") or die ("Cannot open ${file} : $!\n");
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open (NEWFICHERO, ">${file}.bak") or die ("I cannot create a backup of ${file} : $!\n");
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while ( my $line =<FICHERO>)
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{
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chomp $line;
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# Here we must check:
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# 1.- the href ends in .$post.html and $POST = $post and if not
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# cancel the href (remove the tag)
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# 2.- if the href does not end in $post.html and $POST.html exists
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# make it point there
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# 3.- if the href does not end in $post.html and $POST.html does not
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# exist then link to .en.html (english version)
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my $newline = "";
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my $endofline = "";
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while ( $line =~ m/A HREF=\"(.*?)\"/gi )
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{
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my $old_ref = $1;
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my $new_ref = $old_ref;
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$newline = $newline.$`;
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$endofline = $';
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if ( islocalreference($old_ref) )
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{
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warn "Checking reference $old_ref\n" if $verbose;
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if ( $old_ref =~ /\/$/ )
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{
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# This is a directory... check if the file exists
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warn "Fixing directory reference $old_ref\n" if $verbose;
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if ( -f "${directory}/${old_ref}/index.$POST.html" )
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{
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$new_ref = $old_ref."index.".$POST.".html";
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}
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if ( $new_ref eq $old_ref
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and -f "${directory}/${old_ref}/index.$DEFAULT.html" )
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{
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$new_ref = $old_ref."index.".$DEFAULT.".html";
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}
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if ( $new_ref eq $old_ref and -f "${directory}/${old_ref}/index.html" )
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{
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$new_ref = $old_ref."index.html";
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}
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}
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elsif ( $old_ref =~ /(.*?)\.(.*?)\.html$/ )
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{
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# This one uses does *not* use content negotiation...
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warn "Fixing HTML reference $old_ref\n" if $verbose;
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my $base = $1;
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my $ending = $2;
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if ( -f "${directory}/${base}.$POST.html" )
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{
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$new_ref = $base.".".$POST.".html";
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}
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if ( $new_ref eq $old_ref && -f "${directory}/${base}.$DEFAULT.html" )
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{
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$new_ref = $base.".".$DEFAULT.".html";
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}
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}
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elsif ( $old_ref !~ /([\w-]+)\.([\w-]+)$/ ) {
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warn "Fixing Content Negotiation reference $old_ref\n" if $verbose;
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# This one uses *does* use content negotiation...
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# Check as above but also move around files
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if ( -f "${directory}/${old_ref}.$POST.html" )
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{
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$new_ref = $old_ref.".".$POST.".html";
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}
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if ( "$new_ref eq $old_ref && -f ${directory}/${old_ref}.$DEFAULT.html" )
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{
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$new_ref = $old_ref.".".$DEFAULT.".html";
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}
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if ( "$new_ref eq $old_ref && -f ${directory}/${old_ref}.html" )
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{
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$new_ref = $old_ref.".html"
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}
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if ( "$new_ref eq $old_ref && -f ${directory}/${old_ref}" )
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{
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$new_ref = $old_ref.".html";
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}
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}
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}
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# After checking if $old_ref =/= $new_ref then substitute
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$newline .= qq{A HREF="$new_ref"};
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if ( $verbose and $new_ref ne $old_ref)
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{
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warn "Fixed reference $old_ref to $new_ref\n";
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}
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}
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$newline .= $endofline;
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$newline = $line if $newline eq "";
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warn "Changing $line to $newline\n" if $verbose;
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print NEWFICHERO $newline;
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print NEWFICHERO "\n";
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}
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close FICHERO;
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close NEWFICHERO;
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unlink $file;
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move("$file.bak", $file)
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or die("Couldn't move `$file.bak' to `$file': $!\n");
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}
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# Checks if a reference points to a local resource,
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# i.e. it is not in (http|ftp|gopher):// form
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sub islocalreference
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{
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my ($reference) = @_;
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if ($reference !~ /:\/\// )
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{
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warn "Local reference: $reference\n" if $verbose;
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return 1;
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}
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return;
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}
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__END__
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