yolanda/trunk/video.pl

237 lines
7.7 KiB
Perl
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require "include.pl";
require "functions.pl";
#initialize session data
CGI::Session->name($session_name);
$query = new CGI;
$session = new CGI::Session;
#check if id or title is passed
if($query->url_param('title') or $query->url_param('id'))
{
%page = ();
#if a username is associated with session id, username is nonempty
$page->{'username'} = get_username_from_sid($session->id);
$page->{'locale'} = $locale;
$page->{'stylesheet'} = $stylesheet;
$page->{'xmlns:dc'} = $xmlns_dc;
$page->{'xmlns:cc'} = $xmlns_cc;
$page->{'xmlns:rdf'} = $xmlns_rdf;
#connect to db
my $dbh = DBI->connect("DBI:mysql:$database:$dbhost", $dbuser, $dbpass) or die $dbh->errstr;
if($query->url_param('id'))
{
#if id is passed ignore title and check for the id
$sth = $dbh->prepare(qq{select v.id, v.title, v.description, u.username, from_unixtime( v.timestamp ),
v.creator, v.subject, v.contributor, v.source, v.language, v.coverage, v.rights,
v.license, filesize, duration, width, height, fps, viewcount,
downloadcount
from videos as v, users as u where v.id = ? and u.id=v.userid }) or die $dbh->errstr;
$rowcount = $sth->execute($query->url_param('id')) or die $dbh->errstr;
}
else
{
#if no id was passed there has to be a title we search for
$sth = $dbh->prepare(qq{select id, title, description, userid, from_unixtime( timestamp ),
creator, subject, contributor, source, language, coverage, rights, license
from videos where title = ? }) or die $dbh->errstr;
$rowcount = $sth->execute($query->url_param('title')) or die $dbh->errstr;
}
#if the args are wrong there my be zero results
#if there was a title passed, then perform a search
if($rowcount == 0 and $query->url_param('title'))
{
$sth = $dbh->prepare(qq{select id, title, description, userid, from_unixtime( timestamp ),
creator, subject, contributor, source, language, coverage, rights, license
from videos where match(title, description, subject) against( ? ) }) or die $dbh->errstr;
$rowcount = $sth->execute($query->url_param('title')) or die $dbh->errstr;
}
#from this point on, do not use $query->param('id') anymore - we do not know what was given
if($rowcount == 0)
{
#still no results
#there is nothing we can do now - this video doesn't exist...
$page->{'message'}->{'type'} = "error";
$page->{'message'}->{'text'} = "error_202c";
}
elsif($rowcount == 1)
{
#if there was a single result, display the video
my ($id, $title, $description, $username, $timestamp, $creator, $subject,
$contributor, $source, $language, $coverage, $rights, $license,
$filesize, $duration, $width, $height, $fps, $viewcount, $downloadcount) = $sth->fetchrow_array();
#finish query
$sth->finish() or die $dbh->errstr;
#if user is logged in
if($userid = get_userid_from_sid($session->id))
{
#check if a comment is about to be created
if($query->param('comment'))
{
#output infobox
$page->{'message'}->{'type'} = "information";
$page->{'message'}->{'text'} = "information_comment_created";
#add to database
$dbh->do(qq{insert into comments (userid, videoid, text, timestamp) values (?, ?, ?, unix_timestamp())}, undef, $userid, $id, $query->param('comment')) or die $dbh->errstr;
}
}
#if referer is not the local site update referer table
$referer = $query->referer() or $referer = '';
$server_name = $query->server_name();
if($referer !~ /^\w+:\/\/$server_name/)
{
#check if already in database
$sth = $dbh->prepare(qq{select 1 from referer where videoid = ? and referer = ? }) or die $dbh->errstr;
my $rowcount = $sth->execute($id, $referer) or die $dbh->errstr;
$sth->finish() or die $dbh->errstr;
if($rowcount > 0)
{
#video is in database - increase referercount
$sth = $dbh->prepare(qq{update referer set count=count+1 where videoid = ? and referer = ? }) or die $dbh->errstr;
$sth->execute($id, $referer) or die $dbh->errstr;
$sth->finish();
}
else
{
#add new referer
$sth = $dbh->prepare(qq{insert into referer (videoid, referer) values (?, ?) }) or die $dbh->errstr;
$sth->execute($id, $referer) or die $dbh->errstr;
$sth->finish();
}
}
#before code cleanup, this was a really obfuscated array/hash creation
push @{ $page->{'video'} },
{
'thumbnail' => "./video-stills/$id",
'filesize' => $filesize,
'duration' => $duration,
'width' => $width,
'height' => $height,
'fps' => $fps,
'viewcount' => $viewcount,
'downloadcount' => $downloadcount,
'rdf:RDF' =>
{
'cc:Work' =>
{
'rdf:about' => "download.pl?id=$id&view=true",
'dc:title' => [$title],
'dc:creator' => [$creator],
'dc:subject' => [$subject],
'dc:description' => [$description],
'dc:publisher' => [$username],
'dc:contributor' => [$contributor],
'dc:date' => [$timestamp],
'dc:identifier' => ["video.pl?title=$title&id=$id"],
'dc:source' => [$source],
'dc:language' => [$language],
'dc:coverage' => [$coverage],
'dc:rights' => [$rights]
},
'cc:License' =>
{
'rdf:about' => $license
}
}
};
#get comments
$sth = $dbh->prepare(qq{select comments.text, users.username, from_unixtime( comments.timestamp )
from comments, users where
comments.videoid=? and users.id=comments.userid}) or die $dbh->errstr;
$sth->execute($id) or die $dbh->errstr;
while (my ($text, $username, $timestamp) = $sth->fetchrow_array())
{
push @{ $page->{'comments'}->{'comment'} }, {
'text' => [decode_utf8($text)],
'username' => [$username],
'timestamp' => [$timestamp]
};
}
#get referers
$sth = $dbh->prepare(qq{select count, referer from referer where videoid=?}) or die $dbh->errstr;
$sth->execute($id) or die $dbh->errstr;
while (my ($count, $referer) = $sth->fetchrow_array())
{
$referer or $referer = 'no referer (refreshed, manually entered url or bookmark)';
push @{ $page->{'referers'}->{'referer'} }, {
'count' => $count,
'referer' => $referer
};
}
}
else
{
#when an ambigous title was passed there may me many results - display them like search.pl does
$page->{results}->{query} = decode_utf8($query->url_param('title'));
#get every returned value
while (my ($id, $title, $description, $userid, $timestamp) = $sth->fetchrow_array())
{
#before code cleanup, this was a really obfuscated array/hash creation
push @{ $page->{'results'}->{'result'} },
{
'thumbnail' => ['./video-stills/225x150/4chan_city_mashup.png'],
'rdf:RDF' =>
{
'cc:Work' =>
{
'rdf:about' => "./video.pl?title=$title&id=".$id,
'dc:title' => [$title],
'dc:date' => [$timestamp],
'dc:publisher' => [get_username_from_id($userid)],
'dc:description'=> [$description]
},
'cc:License' =>
{
'rdf:about' => 'http://creativecommons.org/licenses/GPL/2.0/'
}
}
};
}
#finish query
$sth->finish() or die $dbh->errstr;
}
#close db
$dbh->disconnect() or die $dbh->errstr;
#print xml http header along with session cookie
print $session->header(-type=>'text/xml');
#print xml
print XMLout($page, KeyAttr => {}, XMLDecl => $XMLDecl, RootName => 'page');
}
else
{
%page = ();
#if a username is associated with session id, username is nonempty
$page->{'username'} = get_username_from_sid($session->id);
$page->{'locale'} = $locale;
$page->{'stylesheet'} = $stylesheet;
$page->{'xmlns:dc'} = $xmlns_dc;
$page->{'xmlns:cc'} = $xmlns_cc;
$page->{'xmlns:rdf'} = $xmlns_rdf;
$page->{'message'}->{'type'} = "error";
$page->{'message'}->{'text'} = "error_202c";
#print xml http header along with session cookie
print $session->header(-type=>'text/xml');
#print xml
print XMLout($page, KeyAttr => {}, XMLDecl => $XMLDecl, RootName => 'page');
}