Solstice::Server::ModPerl::UploadHandler - Gathers data about file uploads.

Solstice documentation Contained in the Solstice distribution.

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Solstice::Server::ModPerl::UploadHandler - Gathers data about file uploads.

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_periodicDBUpdate() =cut

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Copyright 1998-2007 Office of Learning Technologies, University of Washington

Licensed under the Educational Community License, Version 1.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.opensource.org/licenses/ecl1.php

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Solstice documentation Contained in the Solstice distribution. 
package Solstice::Server::ModPerl::UploadHandler;


use strict;
use warnings;
use 5.006_000;

use base qw(Solstice);

use Solstice::Configure;
use Solstice::Database;
use Solstice::Model::FileUploadMeter;
use Solstice::Server::ModPerl::API;
use Solstice::CGI;
use Time::HiRes qw(gettimeofday tv_interval);
use Digest::MD5 qw(md5_hex);

my %file_sizes;
my %last_updates;

sub handler {
    my $r = shift;

    $r = Solstice::Server::ModPerl::API->new($r);

    # We need to use this rather than Solstice::CGI, because using
    # Solstice::CGI will force us to wait for the file to upload before
    # we can get any CGI values.  Also, I'm not clear on why I need to a mp1/2
    # switch here, but the first method breaks the whole shebang for 1.3,
    # with a similar effect to Solstice::CGI.  Returns the same value though ;(
    my $key;
    if($r->is2()){
        $key = $r->apacheRequest()->param('upload_key');
    }else{
        my %args = $r->args();
        $key = $args{'upload_key'};
    }

    return unless defined $key;
    $key = md5_hex($key);

    my $handler = sub {
        my $upload = shift;
        my $data = shift;
        my $dlength = shift;
        my $dkey = shift;

        my $length;
        if($r->is2()){
            $length = $data ? do{ use bytes; length($data);} : 0;
        }else{
            $length = $dlength;
        }

        $file_sizes{$key} += $length;
        _periodicDBUpdate($key, $file_sizes{$key});
    };

    my $q;
    if($r->is2()){
        $q = Apache2::Request->new($r->request(), UPLOAD_HOOK => $handler);
    }else{
        $q = Apache::Request->instance($r->request(), HOOK_DATA => $key, UPLOAD_HOOK => $handler);
    }

    _initialDBEntry($r, $key);
    my $uploaded = $q->upload();
    _finalDBEntry($r, $key);

    return;
}


sub _periodicDBUpdate {
    my $key = shift;
    my $length = shift;
    if (tv_interval($last_updates{$key}, [gettimeofday]) > 0.5) {

        my $upload_meter = Solstice::Model::FileUploadMeter->new({ hex_key => $key });
        if (defined $upload_meter) {
            $upload_meter->setUploadSize($length);
            $upload_meter->store();
        }

        $last_updates{$key} = [gettimeofday];
    }
}

sub _initialDBEntry {
    my $r = shift;
    my $key = shift;
    $last_updates{$key} = [gettimeofday];

    my $rsize = $r->header_in("Content-Length");

    my $upload_meter = Solstice::Model::FileUploadMeter->new();
    $upload_meter->setFileKey($key);
    $upload_meter->setFileSize($rsize);
    $upload_meter->setUploadSize(0);
    $upload_meter->setDateStarted(Solstice::DateTime->new(time));

    $upload_meter->store();
}

sub _finalDBEntry {
    my $r = shift;
    my $key = shift;

    my $upload_meter = Solstice::Model::FileUploadMeter->new({ hex_key => $key });
    if (defined $upload_meter) {
        $upload_meter->setUploadSize($upload_meter->getFileSize());
        $upload_meter->store();
    }

    delete $file_sizes{$key};
    delete $last_updates{$key};
}

1;

__END__