#!/usr/bin/perl -w
use strict;
use Getopt::Declare;
use Cwd;
use File::Find;
use HTML::TreeBuilder;
use URI::URL qw(url);
use File::Copy;
use IO::File;
use vars qw($VERSION $BASE_URL $BACKUP $DIRECTORY @WANTED_TYPES);
$VERSION = (qw$Revision: 1.1 $)[1];
#Load the definition and grab the command-line parameters
my $opts = Getopt::Declare->new( do{ local $/; <DATA> } );
#Cycle through this directory, and all those underneath it
find(\&wanted, $DIRECTORY || getcwd);
#Parse each HTML file and make a backup
#of it using File::Copy::copy.
sub wanted {
return unless $File::Find::name =~ /html?$/;
#Extract Links from the file
my $h = HTML::TreeBuilder->new;
$h->parse_file($File::Find::name);
my $link_elements = $h->extract_links(@WANTED_TYPES);
return unless @$link_elements;
#Grab each img src and re-write them so they are relative URL's
foreach my $link_element (@$link_elements) {
my $link = shift @$link_element; #URL value
my $element = shift @$link_element; #HTML::Element Object
my $url = url($link)->canonical;
next unless $url->can('host_port') and
$BASE_URL->host_port eq $url->host_port;
#Sigh.. The following is because extract_links() doesn't
#tell you which attribute $link belongs to, except to say
#it is the value of an attribute in $element.. somewhere.
#Given the $link, find out which attribute it was for
my ($attr) = grep {
defined $element->attr($_) and $link eq $element->attr($_)
} @{ $HTML::Tagset::linkElements{$element->tag} };
#Re-write the attribute in the HTML::Element Tree
#Note: $BASE_URL needs to be quoted here.
$element->attr($attr, $url->path("$BASE_URL"));
}
#Make a backup of the file before over-writing it
copy $File::Find::name => $File::Find::name.'.bak'
if defined $BACKUP;
#Save the updated file
my $fh = IO::File->new($File::Find::name, O_RDWR)
or die "Could not open $File::Find::name: $!";
$fh->print($h->as_HTML);
}
__DATA__
#If there is an error here, you need to have one tab
#between the <$var> and the option description.
-u <base_url> Base URL (http://www.yoursite.com) [required]
{ $BASE_URL = url($base_url)->canonical }
-b Backup changed files
{ $BACKUP = 1 }
-d <directory> Starting Directory to recurse from
{ $DIRECTORY = $directory }
-l <links>... Links to process: img, href, etc [required]
{ @WANTED_TYPES = @links }
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
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