#!/usr/bin/perl # Ikiwiki enhanced image handling plugin # Christian Mock cm@tahina.priv.at 20061002 package IkiWiki::Plugin::img; use warnings; use strict; use IkiWiki 3.00; my %imgdefaults; sub import { hook(type => "getsetup", id => "img", call => \&getsetup); hook(type => "preprocess", id => "img", call => \&preprocess, scan => 1); } sub getsetup () { return plugin => { safe => 1, rebuild => undef, }, } sub preprocess (@) { my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint my %params=@_; if (exists $imgdefaults{$params{page}}) { foreach my $key (keys %{$imgdefaults{$params{page}}}) { if (! exists $params{$key}) { $params{$key}=$imgdefaults{$params{page}}->{$key}; } } } if (! exists $params{size}) { $params{size}='full'; } if ($image eq 'defaults') { $imgdefaults{$params{page}} = \%params; return ''; } push @{$links{$params{page}}}, $image; # optimisation: detect scan mode, and avoid generating the image if (! defined wantarray) { return; } my $file = bestlink($params{page}, $image); my $srcfile = srcfile($file, 1); if (! length $file || ! defined $srcfile) { return htmllink($params{page}, $params{destpage}, $image); } my $dir = $params{page}; my $base = IkiWiki::basename($file); eval q{use Image::Magick}; error gettext("Image::Magick is not installed") if $@; my $im = Image::Magick->new; my $imglink; my $r; if ($params{size} ne 'full') { my ($w, $h) = ($params{size} =~ /^(\d*)x(\d*)$/); error sprintf(gettext('bad size "%s"'), $params{size}) unless (defined $w && defined $h && (length $w || length $h)); my $outfile = "$config{destdir}/$dir/${w}x${h}-$base"; $imglink = "$dir/${w}x${h}-$base"; will_render($params{page}, $imglink); if (-e $outfile && (-M $srcfile >= -M $outfile)) { $r = $im->Read($outfile); error sprintf(gettext("failed to read %s: %s"), $outfile, $r) if $r; } else { $r = $im->Read($srcfile); error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r; $r = $im->Resize(geometry => "${w}x${h}"); error sprintf(gettext("failed to resize: %s"), $r) if $r; # don't actually write file in preview mode if (! $params{preview}) { my @blob = $im->ImageToBlob(); writefile($imglink, $config{destdir}, $blob[0], 1); } else { $imglink = $file; } } } else { $r = $im->Read($srcfile); error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r; $imglink = $file; } add_depends($imglink, $params{page}); my ($fileurl, $imgurl); if (! $params{preview}) { $fileurl=urlto($file, $params{destpage}); $imgurl=urlto($imglink, $params{destpage}); } else { $fileurl="$config{url}/$file"; $imgurl="$config{url}/$imglink"; } if (! defined($im->Get("width")) || ! defined($im->Get("height"))) { error sprintf(gettext("failed to determine size of image %s"), $file) } my $imgtag=''.(exists $params{alt} ? $params{alt} : '').
		''; if (! defined $params{link} || lc($params{link}) eq 'yes') { $imgtag=''.$imgtag.''; } elsif ($params{link} =~ /^\w+:\/\//) { $imgtag=''.$imgtag.''; } elsif (length bestlink($params{page}, $params{link})) { add_depends($params{page}, $params{link}); $imgtag=htmllink($params{page}, $params{destpage}, $params{link}, linktext => $imgtag, noimageinline => 1); } if (exists $params{caption}) { return ''. ''. ''. '
'.$params{caption}.'
'.$imgtag.'
'; } else { return $imgtag; } } 1