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223 lines
11 KiB
Perl
223 lines
11 KiB
Perl
require "functions.pl";
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CGI::Session->name($config->{"page_cookie_name"});
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$query = CGI->new(\&hook);
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$session = new CGI::Session;
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sub hook
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{
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#this is going to become an ajax progress bar
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#alternatively, reloading every N seconds (mozilla doesn't flicker)
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my ($filename, $buffer, $bytes_read, $data) = @_;
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#print $ENV{'CONTENT_LENGTH'};
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#print sha256_hex($buffer);
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#open(TEMP, ">>/var/www/perl/videos/temp.temp") or die "cannot open";
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#print "Read $bytes_read bytes of $filename\n";
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#close TEMP;
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}
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@userinfo = get_userinfo_from_sid($session->id);
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@page = get_page_array(@userinfo);
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if($userinfo->{'id'} && $query->param("DC.Title") &&
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$query->param("DC.Description") && $query->param("DC.Subject"))
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{
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#make new entry for video into the databse
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#FIXME: contributor, rights
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$dbh->do(qq{insert into uploaded (title, description, userid, timestamp,
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creator, subject, source, language, coverage, rights, license)
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values ( ?, ?, ?, unix_timestamp(), ?, ?, ?, ?, ?, ?, ? )}, undef,
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$query->param("DC.Title"), $query->param("DC.Description"), $userinfo->{'id'},
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$query->param("DC.Creator"), $query->param("DC.Subject"), $query->param("DC.Source"),
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$query->param("DC.Language"), $query->param("DC.Coverage"),
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$query->param("DC.Rights"), $query->param("DC.License")) or die $dbh->errstr;
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#get the id of the inserted db entry
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$sth = $dbh->prepare(qq{select last_insert_id() }) or die $dbh->errstr;
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$sth->execute() or die $dbh->errstr;
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my ($id) = $sth->fetchrow_array() or die $dbh->errstr;
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$sth->finish() or die $dbh->errstr;
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#save uploaded file into temppath
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$upload_filehandle = $query->upload("file");
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open(TEMPFILE, ">/tmp/$id");
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#check that nothing more than max filesize is being uploaded
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while ( <$upload_filehandle> )
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{
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print TEMPFILE;
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}
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close TEMPFILE;
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#check if file is too small or too big
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if( -s "/tmp/$id" < $config->{"video_filesize_min"})
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_file_too_small&value=".$config->{"video_filesize_min"});
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}
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elsif( -s "/tmp/$id" > $config->{"video_filesize_max"})
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_file_too_big&value=".$config->{"video_filesize_max"});
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}
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else
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{
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$info = `export SDL_VIDEODRIVER="dummy"; ffplay -stats -an -vn -nodisp /tmp/$id 2>&1`;
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if($info =~ /ignoring/)
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_invalid_stream");
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}
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elsif ($info =~ /I\/O error occured/)
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_io");
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}
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elsif ($info =~ /Unknown format/ or $info =~ /could not find codec parameters/)
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_not_a_video");
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}
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else
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{
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#generate unique hash
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$sha = new Digest::SHA(256);
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$sha->addfile("/tmp/$id");
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$sha = $sha->hexdigest;
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#check if this hash is already in database
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my $sth = $dbh->prepare(qq{select id from videos where hash = ? limit 1}) or die $dbh->errstr;
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$sth->execute($sha) or die $dbh->errstr;
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my ($resultid) = $sth->fetchrow_array();
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$sth->finish() or die $dbh->errstr;
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#if so, then video is a duplicate (alternatively ALL HAIL QUANTUM COMPUTING)
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if($resultid)
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_duplicate");
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}
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else
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{
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#get video container and duration
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($container, $duration) = $info =~ /Input \#0, (\w+),.+?\n.+?Duration: (\d{2}:\d{2}:\d{2}\.\d)/;
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#get audio, video, idth, height and fps
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#these two regexes have to be applied seperately because nobody knows which stream (audio or video) comes first
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($audio) = $info =~ /Audio: (\w+)/;
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($video, $width, $height, $fps) = $info =~ /Video: ([\w\d]+),.+?(\d+)x(\d+),.+?(\d+\.\d+) fps/;
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#if there is no video stream or no duration
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if(!$video or !$duration)
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_invalid_stream");
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}
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#if the video width is smaller than allowed
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elsif($width < $config->{"video_width_min"})
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_video_width_too_small&value=".$config->{"video_width_min"});
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}
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#if the video height is smaller than allowed
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elsif($height < $config->{"video_height_min"})
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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unlink "/tmp/$id";
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print $query->redirect("index.pl?error=error_upload_video_height_too_small&value=".$config->{"video_height_min"});
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}
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else
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{
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#get video filesize
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$filesize = -s "/tmp/$id";
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#convert hh:mm:ss.s duration to full seconds - thanks perl for making this so damn easy!
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#don't want to know how this would look in python or php... hell I don't even have to create extra variables!
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$duration =~ /^(\d{2}):(\d{2}):(\d{2})\.(\d)$/;
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$duration = int($1*3600 + $2*60 + $3 + $4/10 + .5);
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#get thumbnail position
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$thumbnailsec = int(rand($duration));
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$previewsec = $thumbnailsec;
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#the width/height calculation could of course be much shorter but less readable then
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#all thumbs have equal height
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$tnheight = $config->{"video_thumbnail_height"};
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$tnwidth = int($tnheight*($width/$height)/2 + .5)*2;
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#create thumbnail and preview in original size
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$ffthumb = system "ffmpeg -i /tmp/$id -vcodec mjpeg -vframes 1 -an -f rawvideo -ss $thumbnailsec -s ".$tnwidth."x$tnheight $root/video-stills/thumbnails/$id";
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$ffprev = system "ffmpeg -i /tmp/$id -vcodec mjpeg -vframes 1 -an -f rawvideo -ss $previewsec $root/video-stills/previews/$id";
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#if thumbnail was created successfully
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if($ffthumb == 0 and $ffprev == 0)
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{
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#check if the upload already is in the right format and smaller/equal max-width/height
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if ($container eq 'ogg' and $video eq 'theora' and ($audio eq 'vorbis' or not $audio) and $height <= $config->{"video_height_max"} and $width <= $config->{"video_width_max"})
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{
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#if so, move to destination
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if(move("/tmp/$id", "$root/videos/$id"))
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{
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#if move was successful
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#add video to videos table
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$dbh->do(qq{insert into videos select id, title, description, userid, timestamp, creator,
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subject, source, language, coverage, rights, license, ?, ?, ?, ?, ?, ?, 0, 0
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from uploaded where id = ?}, undef, $filesize, $duration, $width,
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$height, $fps, $sha, $id) or die $dbh->errstr;
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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}
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else
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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die "cannot move video to $root/videos/$id - check your permissions!"
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}
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}
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else
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{
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#write all valueable information to database so the daemon can fetch it
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$dbh->do(qq{update uploaded set filesize = ?, duration = ?, width = ?,
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height = ?, fps = ?, hash = ? where id = ?}, undef, $filesize, $duration, $width,
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$height, $fps, $sha, $id) or die $dbh->errstr;
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}
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#print success to the user
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print $query->redirect("index.pl?information=information_uploaded&value=".$config->{"url_root"}."/video/".urlencode($query->param("DC.Title"))."/$id/");
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}
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else
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{
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#delete from uploaded table
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$dbh->do(qq{delete from uploaded where id = ?}, undef, $id) or die $dbh->errstr;
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die "cannot create thumbnails - check your permissions!";
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}
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}
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}
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}
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}
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}
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else
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{
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#print $query->redirect("index.pl?error=error_202c");
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}
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