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Koha/tools/picture-upload.pl
Chris Nighswonger 3b1d56ccb5 [4/30] Modifications to picture upload script to accommodate image sizes up to 200 X 300 pixel dimesions. 
This also changes the storage image format to PNG which is lossless (an important factor when using these
images for patroncards).

NOTE: In the end, this script was *not* used for uploading images for patron cards. However, these changes
are left as an improvement upon this script which is used for patron image uploads.

This script could be greatly reduced in size by using Graphics::Magick and working along the same lines
as the upload code found in patroncards/image-manage.pl
2010-01-11 18:16:17 -05:00

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#!/usr/bin/perl
#
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
#
#
#
use File::Temp;
use File::Copy;
use CGI;
use GD;
use C4::Context;
use C4::Auth;
use C4::Output;
use C4::Members;
use C4::Debug;
my $input = new CGI;
my ($template, $loggedinuser, $cookie)
= get_template_and_user({template_name => "tools/picture-upload.tmpl",
query => $input,
type => "intranet",
authnotrequired => 0,
flagsrequired => { tools => 'batch_upload_patron_images'},
debug => 0,
});
my $filetype = $input->param('filetype');
my $cardnumber = $input->param('cardnumber');
my $uploadfilename = $input->param('uploadfile');
my $uploadfile = $input->upload('uploadfile');
my $borrowernumber = $input->param('borrowernumber');
my $op = $input->param('op');
#FIXME: This code is really in the rough. The variables need to be re-scoped as the two subs depend on global vars to operate.
# Other parts of this code could be optimized as well, I think. Perhaps the file upload could be done with YUI's upload
# coded. -fbcit
$debug and warn "Params are: filetype=$filetype, cardnumber=$cardnumber, borrowernumber=$borrowernumber, uploadfile=$uploadfilename";
=head1 NAME
picture-upload.p. - Script for handling uploading of both single and bulk patronimages and importing them into the database.
=head1 SYNOPSIS
picture-upload.pl
=head1 DESCRIPTION
This script is called and presents the user with an interface allowing him/her to upload a single patron image or bulk patron images via a zip file.
Files greater than 100K will be refused. Images should be 140x200 pixels. If they are larger they will be auto-resized to comply.
=cut
$debug and warn "Operation requested: $op";
my ( $total, $handled, @counts, $tempfile, $tfh );
if ( ($op eq 'Upload') && $uploadfile ) { # Case is important in these operational values as the template must use case to be visually pleasing!
my $dirname = File::Temp::tempdir( CLEANUP => 1);
$debug and warn "dirname = $dirname";
my $filesuffix = $1 if $uploadfilename =~ m/(\..+)$/i;
( $tfh, $tempfile ) = File::Temp::tempfile( SUFFIX => $filesuffix, UNLINK => 1 );
$debug and warn "tempfile = $tempfile";
my ( @directories, $errors );
$errors{'NOTZIP'} = 1 if ( $uploadfilename !~ /\.zip$/i && $filetype =~ m/zip/i );
$errors{'NOWRITETEMP'} = 1 unless ( -w $dirname );
$errors{'EMPTYUPLOAD'} = 1 unless ( length( $uploadfile ) > 0 );
if ( %errors ) {
$template->param( ERRORS => [ \%errors ] );
} else {
while ( <$uploadfile> ) {
print $tfh $_;
}
close $tfh;
if ( $filetype eq 'zip' ) {
unless (system("unzip $tempfile -d $dirname") == 0) {
$errors{'UZIPFAIL'} = $uploadfilename;
$template->param( ERRORS => [ \%errors ] );
output_html_with_http_headers $input, $cookie, $template->output; # This error is fatal to the import, so bail out here
exit;
}
push @directories, "$dirname";
foreach $recursive_dir ( @directories ) {
opendir $dir, $recursive_dir;
while ( my $entry = readdir $dir ) {
push @directories, "$recursive_dir/$entry" if ( -d "$recursive_dir/$entry" and $entry !~ /^\./ );
$debug and warn "$recursive_dir/$entry";
}
closedir $dir;
}
my $results;
foreach my $dir ( @directories ) {
$results = handle_dir( $dir, $filesuffix );
$handled++ if $results == 1;
}
$total = scalar @directories;
} else { #if ($filetype eq 'zip' )
$results = handle_dir( $dirname, $filesuffix );
$handled = 1;
$total = 1;
}
if ( %$results || %errors ) {
$template->param( ERRORS => [ \%$results ] );
} else {
my $filecount;
map {$filecount += $_->{count}} @counts;
$debug and warn "Total directories processed: $total";
$debug and warn "Total files processed: $filecount";
$template->param(
TOTAL => $total,
HANDLED => $handled,
COUNTS => \@counts,
TCOUNTS => ($filecount > 0 ? $filecount : undef),
);
$template->param( borrowernumber => $borrowernumber ) if $borrowernumber;
}
}
} elsif ( ($op eq 'Upload') && !$uploadfile ) {
warn "Problem uploading file or no file uploaded.";
$template->param(cardnumber => $cardnumber);
$template->param(filetype => $filetype);
} elsif ( $op eq 'Delete' ) {
my $dberror = RmPatronImage($cardnumber);
$debug and warn "Patron image deleted for $cardnumber";
warn "Database returned $dberror" if $dberror;
}
if ( $borrowernumber && !$errors && !$template->param('ERRORS') ) {
print $input->redirect ("/cgi-bin/koha/members/moremember.pl?borrowernumber=$borrowernumber");
} else {
output_html_with_http_headers $input, $cookie, $template->output;
}
sub handle_dir {
my ( $dir, $suffix ) = @_;
my $source;
$debug and warn "Entering sub handle_dir; passed \$dir=$dir, \$suffix=$suffix";
if ($suffix =~ m/zip/i) { # If we were sent a zip file, process any included data/idlink.txt files
my ( $file, $filename, $cardnumber );
$debug and warn "Passed a zip file.";
opendir my $dirhandle, $dir;
while ( my $filename = readdir $dirhandle ) {
$file = "$dir/$filename" if ($filename =~ m/datalink\.txt/i || $filename =~ m/idlink\.txt/i);
}
unless (open (FILE, $file)) {
warn "Opening $dir/$file failed!";
$errors{'OPNLINK'} = $file;
return $errors; # This error is fatal to the import of this directory contents, so bail and return the error to the caller
};
while (my $line = <FILE>) {
$debug and warn "Reading contents of $file";
chomp $line;
$debug and warn "Examining line: $line";
my $delim = ($line =~ /\t/) ? "\t" : ($line =~ /,/) ? "," : "";
$debug and warn "Delimeter is \'$delim\'";
unless ( $delim eq "," || $delim eq "\t" ) {
warn "Unrecognized or missing field delimeter. Please verify that you are using either a ',' or a 'tab'";
$errors{'DELERR'} = 1; # This error is fatal to the import of this directory contents, so bail and return the error to the caller
return $errors;
}
($cardnumber, $filename) = split $delim, $line;
$cardnumber =~ s/[\"\r\n]//g; # remove offensive characters
$filename =~ s/[\"\r\n\s]//g;
$debug and warn "Cardnumber: $cardnumber Filename: $filename";
$source = "$dir/$filename";
%counts = handle_file($cardnumber, $source, %counts);
}
close FILE;
closedir ($dirhandle);
} else {
$source = $tempfile;
%counts = handle_file($cardnumber, $source, %counts);
}
push @counts, \%counts;
return 1;
}
sub handle_file {
my ($cardnumber, $source, %count) = @_;
$debug and warn "Entering sub handle_file; passed \$cardnumber=$cardnumber, \$source=$source";
$count{filenames} = () if !$count{filenames};
$count{source} = $source if !$count{source};
if ($cardnumber && $source) { # Now process any imagefiles
my %filerrors;
my $filename;
if ($filetype eq 'image') {
$filename = $uploadfilename;
} else {
$filename = $1 if ($source =~ /\/([^\/]+)$/);
}
$debug and warn "Source: $source";
my $size = (stat($source))[7];
if ($size > 200000) { # This check is necessary even with image resizing to avoid possible security/performance issues...
$filerrors{'OVRSIZ'} = 1;
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
return %count; # this one is fatal so bail here...
}
my ($srcimage, $image);
if (open (IMG, "$source")) {
$srcimage = GD::Image->new(*IMG);
close (IMG);
if (defined $srcimage) {
my $mimetype = 'image/png'; # GD autodetects three basic image formats: PNG, JPEG, XPM; we will convert all to PNG which is lossless...
# Check the pixel size of the image we are about to import...
my ($width, $height) = $srcimage->getBounds();
$debug and warn "$filename is $width pix X $height pix.";
if ($width > 200 || $height > 300) { # MAX pixel dims are 200 X 300...
$debug and warn "$filename exceeds the maximum pixel dimensions of 200 X 300. Resizing...";
my $percent_reduce; # Percent we will reduce the image dimensions by...
if ($width > 200) {
$percent_reduce = sprintf("%.5f",(140/$width)); # If the width is oversize, scale based on width overage...
} else {
$percent_reduce = sprintf("%.5f",(200/$height)); # otherwise scale based on height overage.
}
my $width_reduce = sprintf("%.0f", ($width * $percent_reduce));
my $height_reduce = sprintf("%.0f", ($height * $percent_reduce));
$debug and warn "Reducing $filename by " . ($percent_reduce * 100) . "\% or to $width_reduce pix X $height_reduce pix";
$image = GD::Image->new($width_reduce, $height_reduce, 1); #'1' creates true color image...
$image->copyResampled($srcimage,0,0,0,0,$width_reduce,$height_reduce,$width,$height);
$imgfile = $image->png();
$debug and warn "$filename is " . length($imgfile) . " bytes after resizing.";
undef $image;
undef $srcimage; # This object can get big...
} else {
$image = $srcimage;
$imgfile = $image->png();
$debug and warn "$filename is " . length($imgfile) . " bytes.";
undef $image;
undef $srcimage; # This object can get big...
}
$debug and warn "Image is of mimetype $mimetype";
my $dberror = PutPatronImage($cardnumber,$mimetype, $imgfile) if $mimetype;
if ( !$dberror && $mimetype ) { # Errors from here on are fatal only to the import of a particular image, so don't bail, just note the error and keep going
$count{count}++;
push @{ $count{filenames} }, { source => $filename, cardnumber => $cardnumber };
} elsif ( $dberror ) {
warn "Database returned error: $dberror";
($dberror =~ /patronimage_fk1/) ? $filerrors{'IMGEXISTS'} = 1 : $filerrors{'DBERR'} = 1;
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
} elsif ( !$mimetype ) {
warn "Unable to determine mime type of $filename. Please verify mimetype.";
$filerrors{'MIMERR'} = 1;
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
}
} else {
warn "Contents of $filename corrupted!";
# $count{count}--;
$filerrors{'CORERR'} = 1;
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
}
} else {
warn "Opening $dir/$filename failed!";
$filerrors{'OPNERR'} = 1;
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
}
} else { # The need for this seems a bit unlikely, however, to maximize error trapping it is included
warn "Missing " . ($cardnumber ? "filename" : ($filename ? "cardnumber" : "cardnumber and filename"));
$filerrors{'CRDFIL'} = ($cardnumber ? "filename" : ($filename ? "cardnumber" : "cardnumber and filename"));
push my @filerrors, \%filerrors;
push @{ $count{filenames} }, { filerrors => \@filerrors, source => $filename, cardnumber => $cardnumber };
$template->param( ERRORS => 1 );
}
return (%count);
}
=back
=head1 AUTHORS
Original contributor(s) undocumented
Database storage, single patronimage upload option, and extensive error trapping contributed by Chris Nighswonger cnighswonger <at> foundations <dot> edu
Image scaling/resizing contributed by the same.
=cut
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