package Sesse::pr0n::Common; use strict; use warnings; use Sesse::pr0n::Templates; use Sesse::pr0n::Overload; use Apache2::RequestRec (); # for $r->content_type use Apache2::RequestIO (); # for $r->print use Apache2::Const -compile => ':common'; use Apache2::Log; use ModPerl::Util; use DBI; use DBD::Pg; use Image::Magick; use POSIX; use Digest::SHA1; use MIME::Base64; use MIME::Types; use LWP::Simple; # use Image::Info; use Image::ExifTool; BEGIN { use Exporter (); our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS); use Sesse::pr0n::Config; eval { require Sesse::pr0n::Config_local; }; $VERSION = "v2.11"; @ISA = qw(Exporter); @EXPORT = qw(&error &dberror); %EXPORT_TAGS = qw(); @EXPORT_OK = qw(&error &dberror); our $dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host, $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password) or die "Couldn't connect to PostgreSQL database: " . DBI->errstr; our $mimetypes = new MIME::Types; Apache2::ServerUtil->server->log_error("Initializing pr0n $VERSION"); } END { our $dbh; $dbh->disconnect; } our ($dbh, $mimetypes); sub error { my ($r,$err,$status,$title) = @_; if (!defined($status) || !defined($title)) { $status = 500; $title = "Internal server error"; } $r->content_type('text/html; charset=utf-8'); $r->status($status); header($r, $title); $r->print("

Error: $err

\n"); footer($r); $r->log->error($err); ModPerl::Util::exit(); } sub dberror { my ($r,$err) = @_; error($r, "$err (DB error: " . $dbh->errstr . ")"); } sub header { my ($r,$title) = @_; $r->content_type("text/html; charset=utf-8"); # Fetch quote if we're itk-bilder.samfundet.no my $quote = ""; if ($r->get_server_name eq 'itk-bilder.samfundet.no') { $quote = LWP::Simple::get("http://itk.samfundet.no/include/quotes.cli.php"); $quote = "Error: Could not fetch quotes." if (!defined($quote)); } Sesse::pr0n::Templates::print_template($r, "header", { title => $title, quotes => $quote }); } sub footer { my ($r) = @_; Sesse::pr0n::Templates::print_template($r, "footer", { version => $Sesse::pr0n::Common::VERSION }); } sub scale_aspect { my ($width, $height, $thumbxres, $thumbyres) = @_; unless ($thumbxres >= $width && $thumbyres >= $height) { my $sfh = $width / $thumbxres; my $sfv = $height / $thumbyres; if ($sfh > $sfv) { $width /= $sfh; $height /= $sfh; } else { $width /= $sfv; $height /= $sfv; } $width = POSIX::floor($width); $height = POSIX::floor($height); } return ($width, $height); } sub get_query_string { my ($param, $defparam) = @_; my $first = 1; my $str = ""; while (my ($key, $value) = each %$param) { next unless defined($value); next if (defined($defparam->{$key}) && $value == $defparam->{$key}); $str .= ($first) ? "?" : '&'; $str .= "$key=$value"; $first = 0; } return $str; } sub print_link { my ($r, $title, $baseurl, $param, $defparam, $accesskey) = @_; my $str = "print($str); } sub get_dbh { # Check that we are alive if (!(defined($dbh) && $dbh->ping)) { # Try to reconnect Apache2::ServerUtil->server->log_error("Lost contact with PostgreSQL server, trying to reconnect..."); unless ($dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host, $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)) { $dbh = undef; die "Couldn't connect to PostgreSQL database"; } } return $dbh; } sub get_base { my $r = shift; return $r->dir_config('ImageBase'); } sub get_disk_location { my ($r, $id) = @_; my $dir = POSIX::floor($id / 256); return get_base($r) . "images/$dir/$id.jpg"; } sub get_cache_location { my ($r, $id, $width, $height, $infobox) = @_; my $dir = POSIX::floor($id / 256); if ($infobox) { return get_base($r) . "cache/$dir/$id-$width-$height.jpg"; } else { return get_base($r) . "cache/$dir/$id-$width-$height-nobox.jpg"; } } sub update_width_height { my ($r, $id, $width, $height) = @_; # Also find the date taken if appropriate (from the EXIF tag etc.) my $info = Image::ExifTool::ImageInfo(get_disk_location($r, $id)); my $datetime = undef; if (defined($info->{'DateTimeOriginal'})) { # Parse the date and time over to ISO format if ($info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)(?:\+\d\d:\d\d)?$/ && $1 > 1990) { $datetime = "$1-$2-$3 $4:$5:$6"; } } $dbh->do('UPDATE images SET width=?, height=?, date=? WHERE id=?', undef, $width, $height, $datetime, $id) or die "Couldn't update width/height in SQL: $!"; # update the last_picture cache as well (this should of course be done # via a trigger, but this is less complicated :-) ) $dbh->do('UPDATE last_picture_cache SET last_picture=GREATEST(last_picture, ?) WHERE event=(SELECT event FROM images WHERE id=?)', undef, $datetime, $id) or die "Couldn't update last_picture in SQL: $!"; } sub check_access { my $r = shift; my $auth = $r->headers_in->{'authorization'}; if (!defined($auth) || $auth !~ m#^Basic ([a-zA-Z0-9+/]+=*)$#) { $r->content_type('text/plain; charset=utf-8'); $r->status(401); $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"'; $r->print("Need authorization\n"); return undef; } #return qw(sesse Sesse); my ($user, $pass) = split /:/, MIME::Base64::decode_base64($1); # WinXP is stupid :-) if ($user =~ /^.*\\(.*)$/) { $user = $1; } my $takenby; if ($user =~ /^([a-zA-Z0-9^_-]+)\@([a-zA-Z0-9^_-]+)$/) { $user = $1; $takenby = $2; } else { ($takenby = $user) =~ s/^([a-zA-Z])/uc($1)/e; } my $oldpass = $pass; $pass = Digest::SHA1::sha1_base64($pass); my $ref = $dbh->selectrow_hashref('SELECT count(*) AS auth FROM users WHERE username=? AND sha1password=? AND vhost=?', undef, $user, $pass, $r->get_server_name); if ($ref->{'auth'} != 1) { $r->content_type('text/plain; charset=utf-8'); warn "No user exists, only $auth"; $r->status(401); $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"'; $r->print("Authorization failed"); $r->log->warn("Authentication failed for $user/$takenby"); return undef; } $r->log->info("Authentication succeeded for $user/$takenby"); return ($user, $takenby); } sub stat_image { my ($r, $event, $filename) = (@_); my $ref = $dbh->selectrow_hashref( 'SELECT id FROM images WHERE event=? AND filename=?', undef, $event, $filename); if (!defined($ref)) { return (undef, undef, undef); } return stat_image_from_id($r, $ref->{'id'}); } sub stat_image_from_id { my ($r, $id) = @_; my $fname = get_disk_location($r, $id); my (undef, undef, undef, undef, undef, undef, undef, $size, undef, $mtime) = stat($fname) or return (undef, undef, undef); return ($fname, $size, $mtime); } sub ensure_cached { my ($r, $filename, $id, $dbwidth, $dbheight, $infobox, $xres, $yres, @otherres) = @_; my $fname = get_disk_location($r, $id); unless (defined($xres) && ($xres < $dbheight || $yres < $dbwidth || $dbwidth == -1 || $dbheight == -1 || $xres == -1)) { return ($fname, 0); } my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox); if (! -r $cachename or (-M $cachename > -M $fname)) { # If we are in overload mode (aka Slashdot mode), refuse to generate # new thumbnails. if (Sesse::pr0n::Overload::is_in_overload($r)) { $r->log->warn("In overload mode, not scaling $id to $xres x $yres"); error($r, 'System is in overload mode, not doing any scaling'); } # Need to generate the cache; read in the image my $magick = new Image::Magick; my $info = Image::ExifTool::ImageInfo($fname); # NEF files aren't autodetected $fname = "NEF:$fname" if ($filename =~ /\.nef$/i); my $err = $magick->Read($fname); if ($err) { $r->log->warn("$fname: $err"); $err =~ /(\d+)/; if ($1 >= 400) { undef $magick; error($r, "$fname: $err"); } } # If we use ->[0] unconditionally, text rendering (!) seems to crash my $img = (scalar @$magick > 1) ? $magick->[0] : $magick; my $width = $img->Get('columns'); my $height = $img->Get('rows'); # Update the SQL database if it doesn't contain the required info if ($dbwidth == -1 || $dbheight == -1) { $r->log->info("Updating width/height for $id: $width x $height"); update_width_height($r, $id, $width, $height); } # We always want RGB JPEGs if ($img->Get('Colorspace') eq "CMYK") { $img->Set(colorspace=>'RGB'); } while (defined($xres) && defined($yres)) { my ($nxres, $nyres) = (shift @otherres, shift @otherres); my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox); my $cimg; if (defined($nxres) && defined($nyres)) { # we have more resolutions to scale, so don't throw # the image away $cimg = $img->Clone(); } else { $cimg = $img; } my ($nwidth, $nheight) = scale_aspect($width, $height, $xres, $yres); # Use lanczos (sharper) for heavy scaling, mitchell (faster) otherwise my $filter = 'Mitchell'; my $quality = 90; if ($width / $nwidth > 8.0 || $height / $nheight > 8.0) { $filter = 'Lanczos'; $quality = 80; } if ($xres != -1) { $cimg->Resize(width=>$nwidth, height=>$nheight, filter=>$filter); } if (($nwidth >= 800 || $nheight >= 600 || $xres == -1) && $infobox == 1) { make_infobox($cimg, $info, $r); } # Strip EXIF tags etc. $cimg->Strip(); $err = $cimg->write(filename=>$cachename, quality=>$quality); undef $cimg; ($xres, $yres) = ($nxres, $nyres); $r->log->info("New cache: $nwidth x $nheight for $id.jpg"); } undef $magick; undef $img; if ($err) { $r->log->warn("$fname: $err"); $err =~ /(\d+)/; if ($1 >= 400) { @$magick = (); error($r, "$fname: $err"); } } } return ($cachename, 1); } sub get_mimetype_from_filename { my $filename = shift; my MIME::Type $type = $mimetypes->mimeTypeOf($filename); $type = "image/jpeg" if (!defined($type)); return $type; } sub make_infobox { my ($img, $info, $r) = @_; my @lines = (); my @classic_fields = (); if (defined($info->{'DateTimeOriginal'}) && $info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/ && $1 >= 1990) { push @lines, "$1-$2-$3 $4:$5"; } if (defined($info->{'Model'})) { my $model = $info->{'Model'}; $model =~ s/^\s+//; $model =~ s/\s+$//; push @lines, $model; } # classic fields if (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)(?:\.\d+)?(?:mm)?$/) { push @classic_fields, ($1 . "mm"); } elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) { push @classic_fields, (sprintf "%.1fmm", ($1/$2)); } if (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+)\/(\d+)$/) { my ($a, $b) = ($1, $2); my $gcd = gcd($a, $b); push @classic_fields, ($a/$gcd . "/" . $b/$gcd . "s"); } if (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\/(\d+)$/) { my $f = $1/$2; if ($f >= 10) { push @classic_fields, (sprintf "f/%.0f", $f); } else { push @classic_fields, (sprintf "f/%.1f", $f); } } elsif (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\.(\d+)$/) { my $f = $info->{'FNumber'}; if ($f >= 10) { push @classic_fields, (sprintf "f/%.0f", $f); } else { push @classic_fields, (sprintf "f/%.1f", $f); } } # Apache2::ServerUtil->server->log_error(join(':', keys %$info)); if (defined($info->{'NikonD1-ISOSetting'})) { push @classic_fields, $info->{'NikonD1-ISOSetting'}->[1] . " ISO"; } elsif (defined($info->{'ISOSetting'})) { push @classic_fields, $info->{'ISOSetting'} . " ISO"; } push @classic_fields, $info->{'ExposureBiasValue'} . " EV" if (defined($info->{'ExposureBiasValue'}) && $info->{'ExposureBiasValue'} != 0); if (scalar @classic_fields > 0) { push @lines, join(', ', @classic_fields); } if (defined($info->{'Flash'})) { if ($info->{'Flash'} =~ /did not fire/i || $info->{'Flash'} =~ /no flash/i || $info->{'Flash'} =~ /not fired/i || $info->{'Flash'} =~ /Off/) { push @lines, "No flash"; } elsif ($info->{'Flash'} =~ /fired/i || $info->{'Flash'} =~ /On/) { push @lines, "Flash"; } else { push @lines, $info->{'Flash'}; } } return if (scalar @lines == 0); # OK, this sucks. Let's make something better :-) @lines = ( join(" - ", @lines) ); # Find the required width my $th = 14 * (scalar @lines) + 6; my $tw = 1; for my $line (@lines) { my $this_w = ($img->QueryFontMetrics(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12))[4]; $tw = $this_w if ($this_w >= $tw); } $tw += 6; # Round up so we hit exact DCT blocks $tw += 8 - ($tw % 8) unless ($tw % 8 == 0); $th += 8 - ($th % 8) unless ($th % 8 == 0); return if ($tw > $img->Get('columns')); # my $x = $img->Get('columns') - 8 - $tw; # my $y = $img->Get('rows') - 8 - $th; my $x = 0; my $y = $img->Get('rows') - $th; $tw = $img->Get('columns'); $x -= $x % 8; $y -= $y % 8; my $points = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), ($img->Get('rows') - 1); my $lpoints = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), $y; # $img->Draw(primitive=>'rectangle', stroke=>'black', fill=>'white', points=>$points); $img->Draw(primitive=>'rectangle', stroke=>'white', fill=>'white', points=>$points); $img->Draw(primitive=>'line', stroke=>'black', points=>$lpoints); my $i = -(scalar @lines - 1)/2.0; my $xc = $x + $tw / 2 - $img->Get('columns')/2; my $yc = ($y + $img->Get('rows'))/2 - $img->Get('rows')/2; #my $yc = ($y + $img->Get('rows'))/4; my $yi = $th / (scalar @lines); $lpoints = sprintf "%u,%u %u,%u", $x, $yc + $img->Get('rows')/2, ($x+$tw-1), $yc+$img->Get('rows')/2; for my $line (@lines) { $img->Annotate(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12, gravity=>'Center', # $img->Annotate(text=>$line, font=>'Helvetica', pointsize=>12, gravity=>'Center', x=>int($xc), y=>int($yc + $i * $yi)); $i = $i + 1; } } sub gcd { my ($a, $b) = @_; return $a if ($b == 0); return gcd($b, $a % $b); } 1;