1 package Sesse::pr0n::Common;
5 use Sesse::pr0n::Overload;
6 use Sesse::pr0n::QscaleProxy;
7 use Sesse::pr0n::Templates;
24 use Crypt::Eksblowfish::Bcrypt;
29 our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
31 use Sesse::pr0n::Config;
33 require Sesse::pr0n::Config_local;
38 @EXPORT = qw(&error &dberror);
40 @EXPORT_OK = qw(&error &dberror);
42 our $dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
43 $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)
44 or die "Couldn't connect to PostgreSQL database: " . DBI->errstr;
45 our $mimetypes = new MIME::Types;
47 print STDERR "Initializing pr0n $VERSION\n";
54 our ($dbh, $mimetypes);
57 my ($r,$err,$status,$title) = @_;
59 if (!defined($status) || !defined($title)) {
61 $title = "Internal server error";
64 my $res = Plack::Response->new($status);
65 my $io = IO::String->new;
67 $r->content_type('text/html; charset=utf-8');
69 header($r, $io, $title);
70 $io->print(" <p>Error: $err</p>\n");
74 log_error($r, "Stack trace follows: " . Carp::longmess());
83 return error($r, "$err (DB error: " . $dbh->errstr . ")");
87 my ($r, $io, $title) = @_;
89 $r->content_type("text/html; charset=utf-8");
91 # Fetch quote if we're itk-bilder.samfundet.no
93 if (Sesse::pr0n::Common::get_server_name($r) eq 'itk-bilder.samfundet.no') {
94 $quote = LWP::Simple::get("http://itk.samfundet.no/include/quotes.cli.php");
95 $quote = "Error: Could not fetch quotes." if (!defined($quote));
97 Sesse::pr0n::Templates::print_template($r, $io, "header", { title => $title, quotes => $quote });
102 Sesse::pr0n::Templates::print_template($r, $io, "footer",
103 { version => $Sesse::pr0n::Common::VERSION });
107 my ($width, $height, $thumbxres, $thumbyres) = @_;
109 unless ($thumbxres >= $width &&
110 $thumbyres >= $height) {
111 my $sfh = $width / $thumbxres;
112 my $sfv = $height / $thumbyres;
120 $width = POSIX::floor($width);
121 $height = POSIX::floor($height);
124 return ($width, $height);
127 sub get_query_string {
128 my ($param, $defparam) = @_;
132 for my $key (sort keys %$param) {
133 my $value = $param->{$key};
134 next unless defined($value);
135 next if (defined($defparam->{$key}) && $value == $defparam->{$key});
137 $value = pretty_escape($value);
139 $str .= ($first) ? "?" : ';';
140 $str .= "$key=$value";
146 # This is not perfect (it can't handle "_ " right, for one), but it will do for now
147 sub weird_space_encode {
150 return "_" x (length($val) * 2);
152 return "_" x (length($val) * 2 - 1);
156 sub weird_space_unencode {
158 if (length($val) % 2 == 0) {
159 return "_" x (length($val) / 2);
161 return " " x ((length($val) + 1) / 2);
168 $value =~ s/(([_ ])\2*)/weird_space_encode($1)/ge;
169 $value = URI::Escape::uri_escape($value);
170 $value =~ s/%2F/\//g;
175 sub pretty_unescape {
178 # URI unescaping is already done for us
179 $value =~ s/(_+)/weird_space_unencode($1)/ge;
185 my ($io, $title, $baseurl, $param, $defparam, $accesskey) = @_;
186 my $str = "<a href=\"$baseurl" . get_query_string($param, $defparam) . "\"";
187 if (defined($accesskey) && length($accesskey) == 1) {
188 $str .= " accesskey=\"$accesskey\"";
190 $str .= ">$title</a>";
195 # Check that we are alive
196 if (!(defined($dbh) && $dbh->ping)) {
198 print STDERR "Lost contact with PostgreSQL server, trying to reconnect...\n";
199 unless ($dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
200 $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)) {
202 die "Couldn't connect to PostgreSQL database";
209 sub get_disk_location {
211 my $dir = POSIX::floor($id / 256);
212 return $Sesse::pr0n::Config::image_base . "images/$dir/$id.jpg";
215 sub get_cache_location {
216 my ($id, $width, $height, $format) = @_;
217 my $dir = POSIX::floor($id / 256);
219 return $Sesse::pr0n::Config::image_base . "cache/$dir/$id-$width-$height-nobox.$format";
222 sub get_infobox_cache_location {
223 my ($id, $width, $height, $dpr) = @_;
224 my $dir = POSIX::floor($id / 256);
227 return $Sesse::pr0n::Config::image_base . "cache/$dir/$id-$width-$height-box.png";
229 return $Sesse::pr0n::Config::image_base . "cache/$dir/$id-$width-$height-box\@$dpr.png";
233 sub ensure_disk_location_exists {
235 my $dir = POSIX::floor($id / 256);
237 my $img_dir = $Sesse::pr0n::Config::image_base . "/images/$dir/";
239 log_info($r, "Need to create new image directory $img_dir");
240 mkdir($img_dir) or die "Couldn't create new image directory $img_dir";
243 my $cache_dir = $Sesse::pr0n::Config::image_base . "/cache/$dir/";
244 if (! -d $cache_dir) {
245 log_info($r, "Need to create new cache directory $cache_dir");
246 mkdir($cache_dir) or die "Couldn't create new image directory $cache_dir";
250 sub get_mipmap_location {
251 my ($r, $id, $width, $height) = @_;
252 my $dir = POSIX::floor($id / 256);
254 return $Sesse::pr0n::Config::image_base . "cache/$dir/$id-mipmap-$width-$height.jpg";
257 sub update_image_info {
258 my ($r, $id, $width, $height) = @_;
260 # Also find the date taken if appropriate (from the EXIF tag etc.)
261 my $exiftool = Image::ExifTool->new;
262 $exiftool->ExtractInfo(get_disk_location($r, $id));
263 my $info = $exiftool->GetInfo();
264 my $datetime = undef;
266 if (defined($info->{'DateTimeOriginal'})) {
267 # Parse the date and time over to ISO format
268 if ($info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)(?:\+\d\d:\d\d)?$/ && $1 > 1990) {
269 $datetime = "$1-$2-$3 $4:$5:$6";
274 local $dbh->{AutoCommit} = 0;
277 $dbh->do('DELETE FROM exif_info WHERE image=?',
279 or die "Couldn't delete old EXIF information in SQL: $!";
281 my $q = $dbh->prepare('INSERT INTO exif_info (image,key,value) VALUES (?,?,?)')
282 or die "Couldn't prepare inserting EXIF information: $!";
284 for my $key (keys %$info) {
285 next if ref $info->{$key};
286 $q->execute($id, $key, guess_charset($info->{$key}))
287 or die "Couldn't insert EXIF information in database: $!";
291 my $model = $exiftool->GetValue('Model', 'PrintConv');
292 my $lens = $exiftool->GetValue('Lens', 'PrintConv');
293 $lens = $exiftool->GetValue('LensSpec', 'PrintConv') if (!defined($lens));
297 $model = undef if (length($model) == 0);
301 $lens = undef if (length($lens) == 0);
303 # Now update the main table with the information we've got
304 $dbh->do('UPDATE images SET width=?, height=?, date=?, model=?, lens=? WHERE id=?',
305 undef, $width, $height, $datetime, $model, $lens, $id)
306 or die "Couldn't update width/height in SQL: $!";
308 # update the last_picture cache as well (this should of course be done
309 # via a trigger, but this is less complicated :-) )
310 $dbh->do('UPDATE last_picture_cache SET last_picture=GREATEST(last_picture, ?),last_update=CURRENT_TIMESTAMP WHERE (vhost,event)=(SELECT vhost,event FROM images WHERE id=?)',
311 undef, $datetime, $id)
312 or die "Couldn't update last_picture in SQL: $!";
319 #return qw(sesse Sesse);
321 my $auth = $r->header('authorization');
322 if (!defined($auth)) {
325 if ($auth =~ /^Basic ([a-zA-Z0-9+\/]+=*)$/) {
326 return check_basic_auth($r, $1);
333 my $res = Plack::Response->new(401);
334 $res->content_type('text/plain; charset=utf-8');
336 $res->header('WWW-Authenticate' => 'Basic realm="pr0n.sesse.net"');
338 $res->body("Need authorization\n");
342 sub check_basic_auth {
345 my ($raw_user, $pass) = split /:/, MIME::Base64::decode_base64($auth);
346 my ($user, $takenby) = extract_takenby($raw_user);
348 my $ref = $dbh->selectrow_hashref('SELECT cryptpassword FROM users WHERE username=? AND vhost=?',
349 undef, $user, Sesse::pr0n::Common::get_server_name($r));
350 my $bcrypt_matches = 0;
351 if (!defined($ref) || Crypt::Eksblowfish::Bcrypt::bcrypt($pass, $ref->{'cryptpassword'}) ne $ref->{'cryptpassword'}) {
352 $r->content_type('text/plain; charset=utf-8');
353 log_warn($r, "Authentication failed for $user/$takenby");
356 log_info($r, "Authentication succeeded for $user/$takenby");
358 return ($user, $takenby);
361 sub get_pseudorandom_bytes {
362 my $num_left = shift;
364 open my $randfh, "<", "/dev/urandom"
365 or die "/dev/urandom: $!";
367 while ($num_left > 0) {
369 if (sysread($randfh, $tmp, $num_left) == -1) {
370 die "sysread(/dev/urandom): $!";
373 $num_left -= length($bytes);
379 sub extract_takenby {
382 # WinXP is stupid :-)
383 if ($user =~ /^.*\\(.*)$/) {
388 if ($user =~ /^([a-zA-Z0-9^_-]+)\@([a-zA-Z0-9^_-]+)$/) {
392 ($takenby = $user) =~ s/^([a-zA-Z])/uc($1)/e;
395 return ($user, $takenby);
399 my ($r, $event, $filename) = (@_);
400 my $ref = $dbh->selectrow_hashref(
401 'SELECT id FROM images WHERE event=? AND filename=?',
402 undef, $event, $filename);
403 if (!defined($ref)) {
404 return (undef, undef, undef);
406 return stat_image_from_id($r, $ref->{'id'});
409 sub stat_image_from_id {
412 my $fname = get_disk_location($r, $id);
413 my (undef, undef, undef, undef, undef, undef, undef, $size, undef, $mtime) = stat($fname)
414 or return (undef, undef, undef);
416 return ($fname, $size, $mtime);
419 # Takes in an image ID and a set of resolutions, and returns (generates if needed)
420 # the smallest mipmap larger than the largest of them, as well as the original image
423 my ($r, $filename, $id, $dbwidth, $dbheight, @res) = @_;
424 my ($img, $mmimg, $width, $height);
426 my $physical_fname = get_disk_location($r, $id);
428 # If we don't know the size, we'll need to read it in anyway
429 if (!defined($dbwidth) || !defined($dbheight)) {
430 $img = read_original_image($r, $filename, $id, $dbwidth, $dbheight);
431 $width = $img->Get('columns');
432 $height = $img->Get('rows');
438 # Generate the list of mipmaps
441 my $mmwidth = $width;
442 my $mmheight = $height;
444 while ($mmwidth > 1 || $mmheight > 1) {
445 my $new_mmwidth = POSIX::floor($mmwidth / 2);
446 my $new_mmheight = POSIX::floor($mmheight / 2);
448 $new_mmwidth = 1 if ($new_mmwidth < 1);
449 $new_mmheight = 1 if ($new_mmheight < 1);
451 my $large_enough = 1;
452 for my $i (0..($#res/2)) {
453 my ($xres, $yres) = ($res[$i*2], $res[$i*2+1]);
454 if ($xres == -1 || $xres > $new_mmwidth || $yres > $new_mmheight) {
460 last if (!$large_enough);
462 $mmwidth = $new_mmwidth;
463 $mmheight = $new_mmheight;
465 push @mmlist, [ $mmwidth, $mmheight ];
468 # Ensure that all of them are OK
469 my $last_good_mmlocation;
470 for my $i (0..$#mmlist) {
471 my $last = ($i == $#mmlist);
472 my $mmres = $mmlist[$i];
474 my $mmlocation = get_mipmap_location($r, $id, $mmres->[0], $mmres->[1]);
475 if (! -r $mmlocation or (-M $mmlocation > -M $physical_fname)) {
476 if (!defined($img)) {
477 if (defined($last_good_mmlocation)) {
478 $img = Sesse::pr0n::QscaleProxy->new;
479 $img->Read($last_good_mmlocation);
481 $img = read_original_image($r, $filename, $id, $dbwidth, $dbheight);
488 $cimg = $img->Clone();
490 log_info($r, "Making mipmap for $id: " . $mmres->[0] . " x " . $mmres->[1]);
491 $cimg->Resize(width=>$mmres->[0], height=>$mmres->[1], filter=>'Lanczos', 'sampling-factor'=>'1x1');
493 my $err = $cimg->write(
494 filename => $mmlocation,
496 'sampling-factor' => '1x1'
500 $last_good_mmlocation = $mmlocation;
502 if ($last && !defined($img)) {
503 # OK, read in the smallest one
504 $img = Sesse::pr0n::QscaleProxy->new;
505 my $err = $img->Read($mmlocation);
509 if (!defined($img)) {
510 $img = read_original_image($r, $filename, $id, $dbwidth, $dbheight);
511 $width = $img->Get('columns');
512 $height = $img->Get('rows');
514 return ($img, $width, $height);
517 sub read_original_image {
518 my ($r, $filename, $id, $dbwidth, $dbheight) = @_;
520 my $physical_fname = get_disk_location($r, $id);
522 # Read in the original image
524 if ($filename =~ /\.jpeg$/i || $filename =~ /\.jpg$/i) {
525 $magick = Sesse::pr0n::QscaleProxy->new;
527 $magick = Image::Magick->new;
531 # ImageMagick can handle NEF files, but it does it by calling dcraw as a delegate.
532 # The delegate support is rather broken and causes very odd stuff to happen when
533 # more than one thread does this at the same time. Thus, we simply do it ourselves.
534 if ($filename =~ /\.(nef|cr2)$/i) {
535 # this would suffice if ImageMagick gets to fix their handling
536 # $physical_fname = "NEF:$physical_fname";
538 open DCRAW, "-|", "dcraw", "-w", "-c", $physical_fname
539 or error("dcraw: $!");
540 $err = $magick->Read(file => \*DCRAW);
543 # We always want YCbCr JPEGs. Setting this explicitly here instead of using
544 # RGB is slightly faster (no colorspace conversion needed) and works equally
545 # well for our uses, as long as we don't need to draw an information box,
546 # which trickles several ImageMagick bugs related to colorspace handling.
547 # (Ideally we'd be able to keep the image subsampled and
548 # planar, but that would probably be difficult for ImageMagick to expose.)
550 # $magick->Set(colorspace=>'YCbCr');
552 $err = $magick->Read($physical_fname);
556 log_warn($r, "$physical_fname: $err");
560 error($r, "$physical_fname: $err");
564 # If we use ->[0] unconditionally, text rendering (!) seems to crash
566 if (ref($magick) !~ /Image::Magick/) {
569 $img = (scalar @$magick > 1) ? $magick->[0] : $magick;
576 my ($r, $avif_ok, $jxl_ok, $filename, $id, $dbwidth, $dbheight, $xres, $yres, @otherres) = @_;
578 my $fname = get_disk_location($r, $id);
579 unless (defined($xres) && (!defined($dbwidth) || !defined($dbheight) || $xres < $dbwidth || $yres < $dbheight || $xres == -1)) {
580 return ($fname, undef);
583 # See if we have an up-to-date JPEG-XL or AVIF to serve.
584 # (We never generate them on-the-fly, since they're so slow.)
585 my $cachename = get_cache_location($id, $xres, $yres, 'jxl');
586 if ($jxl_ok && -r $cachename and (-M $cachename <= -M $fname)) {
587 return ($cachename, 'image/jxl');
590 $cachename = get_cache_location($id, $xres, $yres, 'avif');
591 if ($avif_ok && -r $cachename and (-M $cachename <= -M $fname)) {
592 return ($cachename, 'image/avif');
595 $cachename = get_cache_location($id, $xres, $yres, 'jpg');
596 if (! -r $cachename or (-M $cachename > -M $fname)) {
597 # If we are in overload mode (aka Slashdot mode), refuse to generate
599 if (Sesse::pr0n::Overload::is_in_overload($r)) {
600 log_warn($r, "In overload mode, not scaling $id to $xres x $yres");
601 error($r, 'System is in overload mode, not doing any scaling');
604 make_cache($r, $filename, $id, $dbwidth, $dbheight, 'jpg', $xres, $yres, @otherres);
607 return ($cachename, 'image/jpeg');
611 my ($r, $filename, $id, $dbwidth, $dbheight, $format, $xres, $yres, @otherres) = @_;
613 my ($img, $new_dbwidth, $new_dbheight) = make_mipmap($r, $filename, $id, $dbwidth, $dbheight, $xres, $yres, @otherres);
615 # Update the SQL database if it doesn't contain the required info
616 if (!defined($dbwidth) && defined($new_dbwidth)) {
617 log_info($r, "Updating width/height for $id: $new_dbwidth x $new_dbheight");
618 update_image_info($r, $id, $new_dbwidth, $new_dbheight);
622 while (defined($xres) && defined($yres)) {
623 my ($nxres, $nyres) = (shift @otherres, shift @otherres);
624 my $cachename = get_cache_location($id, $xres, $yres, $format);
627 if (defined($nxres) && defined($nyres)) {
628 # we have more resolutions to scale, so don't throw
630 $cimg = $img->Clone();
635 my $width = $img->Get('columns');
636 my $height = $img->Get('rows');
637 my ($nwidth, $nheight) = scale_aspect($width, $height, $xres, $yres);
639 my $filter = 'Lanczos';
644 $cimg->Resize(width=>$nwidth, height=>$nheight, filter=>$filter);
647 # Strip EXIF tags etc.
650 if ($format eq 'jpg') {
652 filename => $cachename,
655 if (($nwidth >= 640 && $nheight >= 480) ||
656 ($nwidth >= 480 && $nheight >= 640)) {
657 $parms{'interlace'} = 'Plane';
660 $parms{'sampling-factor'} = $sf;
662 $err = $cimg->write(%parms);
663 } elsif ($format eq 'avif') {
664 # ImageMagick doesn't have AVIF support until version 7,
665 # and Debian hasn't packaged that even in unstable as of 2021.
666 # So we'll need to do it the manual way. (We don't use /tmp, for security reasons.)
667 (my $dirname = $cachename) =~ s,/[^/]*$,,;
668 my ($fh, $raw_filename) = File::Temp::tempfile('tmp.XXXXXXXX', DIR => $dirname, SUFFIX => '.ycbcr');
669 # Write a Y4M header, so that we get the chroma range correct.
670 printf $fh "YUV4MPEG2 W%d H%d F25:1 Ip A1:1 C444 XYSCSS=444 XCOLORRANGE=FULL\nFRAME\n", $nwidth, $nheight;
673 filename => $raw_filename,
676 $cimg->write(%parms);
679 ($fh, $ivf_filename) = File::Temp::tempfile('tmp.XXXXXXXX', DIR => $dirname, SUFFIX => '.ivf');
681 system('aomenc', '--quiet', '--cpu-used=0', '--bit-depth=10', '--end-usage=q', '--cq-level=13', '--target-bitrate=0', '--good', '--aq-mode=1', '--matrix-coefficients=bt601', '-o', $ivf_filename, $raw_filename);
682 unlink($raw_filename);
683 system('MP4Box', '-quiet', '-add-image', "$ivf_filename:primary", '-ab', 'avif', '-ab', 'miaf', '-new', $cachename);
684 unlink($ivf_filename);
685 } elsif ($format eq 'jxl') {
686 # Similar, for JPEG-XL.
687 (my $dirname = $cachename) =~ s,/[^/]*$,,;
688 my ($fh, $raw_filename) = File::Temp::tempfile('tmp.XXXXXXXX', DIR => $dirname, SUFFIX => '.ppm');
691 filename => $raw_filename
693 $cimg->write(%parms);
695 system('cjxl', '-p', $raw_filename, $cachename);
696 unlink($raw_filename);
698 die "Unknown format $format";
703 ($xres, $yres) = ($nxres, $nyres);
705 log_info($r, "New cache: $nwidth x $nheight ($format) for $id");
710 log_warn($r, "$filename: $err");
714 error($r, "$filename: $err");
719 sub ensure_infobox_cached {
720 my ($r, $filename, $id, $dbwidth, $dbheight, $dpr, $xres, $yres) = @_;
722 my ($new_dbwidth, $new_dbheight);
724 my $fname = get_disk_location($r, $id);
725 my $cachename = get_infobox_cache_location($id, $xres, $yres, $dpr);
727 if (! -r $cachename or (-M $cachename > -M $fname)) {
728 # If we are in overload mode (aka Slashdot mode), refuse to generate
730 if (Sesse::pr0n::Overload::is_in_overload($r)) {
731 log_warn($r, "In overload mode, not scaling $id to $xres x $yres");
732 error($r, 'System is in overload mode, not doing any scaling');
735 # We need the exact width so we can make one in the right size.
736 my ($width, $height);
738 # This is slow, but should fortunately almost never happen, so don't bother
740 if (!defined($dbwidth) || !defined($dbheight)) {
741 my $img = read_original_image($r, $filename, $id, $dbwidth, $dbheight, 0);
742 $new_dbwidth = $width = $img->Get('columns');
743 $new_dbheight = $height = $img->Get('rows');
748 my $img = Image::Magick->new;
750 if (defined($xres) && defined($yres)) {
751 ($width, $height) = scale_aspect($width, $height, $xres, $yres);
754 $img->Set(size=>($width . "x" . $height));
755 $img->Read('xc:white');
757 my $info = Image::ExifTool::ImageInfo($fname);
758 if (make_infobox($img, $info, $r, $dpr)) {
759 $img->Quantize(colors=>16, dither=>'False');
761 # Since the image is grayscale, ImageMagick overrides us and writes this
762 # as grayscale anyway, but at least we get rid of the alpha channel this
764 $img->Set(type=>'Palette');
766 # Not enough room for the text, make a tiny dummy transparent infobox
768 $img->Set(size=>"1x1");
775 $err = $img->write(filename => $cachename, quality => 90, depth => 8);
776 log_info($r, "New infobox cache: $width x $height for $id.jpg");
779 return ($cachename, 'image/png');
782 sub get_mimetype_from_filename {
783 my $filename = shift;
784 my MIME::Type $type = $mimetypes->mimeTypeOf($filename);
785 $type = "image/jpeg" if (!defined($type));
790 my ($img, $info, $r, $dpr) = @_;
792 # The infobox is of the form
793 # "Time - date - focal length, shutter time, aperture, sensitivity, exposure bias - flash",
794 # possibly with some parts omitted -- the middle part is known as the "classic
795 # fields"; note the comma separation. Every field has an associated "bold flag"
796 # in the second part.
798 my $manual_shutter = (defined($info->{'ExposureProgram'}) &&
799 $info->{'ExposureProgram'} =~ /shutter\b.*\bpriority/i);
800 my $manual_aperture = (defined($info->{'ExposureProgram'}) &&
801 $info->{'ExposureProgram'} =~ /aperture\b.*\bpriority/i);
802 if (defined($info->{'ExposureProgram'}) && $info->{'ExposureProgram'} =~ /manual/i) {
804 $manual_aperture = 1;
807 my @classic_fields = ();
808 if (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)(?:\.\d+)?\s*(?:mm)?$/) {
809 push @classic_fields, [ $1 . "mm", 0 ];
810 } elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) {
811 push @classic_fields, [ (sprintf "%.1fmm", ($1/$2)), 0 ];
814 if (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+)\/(\d+)$/) {
815 my ($a, $b) = ($1, $2);
816 my $gcd = gcd($a, $b);
817 push @classic_fields, [ $a/$gcd . "/" . $b/$gcd . "s", $manual_shutter ];
818 } elsif (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+(?:\.\d+)?)$/) {
819 push @classic_fields, [ $1 . "s", $manual_shutter ];
822 if (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\/(\d+)$/) {
825 push @classic_fields, [ (sprintf "f/%.0f", $f), $manual_aperture ];
827 push @classic_fields, [ (sprintf "f/%.1f", $f), $manual_aperture ];
829 } elsif (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\.(\d+)$/) {
830 my $f = $info->{'FNumber'};
832 push @classic_fields, [ (sprintf "f/%.0f", $f), $manual_aperture ];
834 push @classic_fields, [ (sprintf "f/%.1f", $f), $manual_aperture ];
838 # Apache2::ServerUtil->server->log_error(join(':', keys %$info));
841 if (defined($info->{'NikonD1-ISOSetting'})) {
842 $iso = $info->{'NikonD1-ISOSetting'};
843 } elsif (defined($info->{'ISO'})) {
844 $iso = $info->{'ISO'};
845 } elsif (defined($info->{'ISOSetting'})) {
846 $iso = $info->{'ISOSetting'};
848 if (defined($iso) && $iso =~ /(\d+)/) {
849 push @classic_fields, [ $1 . " ISO", 0 ];
852 if (defined($info->{'ExposureBiasValue'}) && $info->{'ExposureBiasValue'} ne "0") {
853 push @classic_fields, [ $info->{'ExposureBiasValue'} . " EV", 0 ];
854 } elsif (defined($info->{'ExposureCompensation'}) && $info->{'ExposureCompensation'} ne "0") {
855 push @classic_fields, [ $info->{'ExposureCompensation'} . " EV", 0 ];
858 # Now piece together the rest
861 if (defined($info->{'DateTimeOriginal'}) &&
862 $info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/
864 push @parts, [ "$1-$2-$3 $4:$5", 0 ];
867 if (defined($info->{'Model'})) {
868 my $model = $info->{'Model'};
872 push @parts, [ "\x{00A0}\x{2013}\x{00A0}", 0 ] if (scalar @parts > 0);
873 push @parts, [ $model, 0 ];
877 if (scalar @classic_fields > 0) {
878 push @parts, [ "\x{00A0}\x{2013}\x{00A0}", 0 ] if (scalar @parts > 0);
881 for my $field (@classic_fields) {
882 push @parts, [ ', ', 0 ] if (!$first_elem);
888 if (defined($info->{'Flash'})) {
889 if ($info->{'Flash'} =~ /did not fire/i ||
890 $info->{'Flash'} =~ /no flash/i ||
891 $info->{'Flash'} =~ /not fired/i ||
892 $info->{'Flash'} =~ /Off/) {
893 push @parts, [ "\x{00A0}\x{2013}\x{00A0}", 0 ] if (scalar @parts > 0);
894 push @parts, [ "No flash", 0 ];
895 } elsif ($info->{'Flash'} =~ /fired/i ||
896 $info->{'Flash'} =~ /On/) {
897 push @parts, [ "\x{00A0}\x{2013}\x{00A0}", 0 ] if (scalar @parts > 0);
898 push @parts, [ "Flash", 0 ];
900 push @parts, [ "\x{00A0}\x{2013}\x{00A0}", 0 ] if (scalar @parts > 0);
901 push @parts, [ $info->{'Flash'}, 0 ];
905 return 0 if (scalar @parts == 0);
907 # Find the required width
911 for my $part (@parts) {
914 $font = '/usr/share/fonts/truetype/msttcorefonts/Arial_Bold.ttf';
916 $font = '/usr/share/fonts/truetype/msttcorefonts/Arial.ttf';
919 my (undef, undef, $h, undef, $w) = ($img->QueryFontMetrics(text=>$part->[0], font=>$font, pointsize=>12*$dpr));
922 $th = $h if ($h > $th);
925 return 0 if ($tw > $img->Get('columns'));
928 my $y = $img->Get('rows') - 24*$dpr;
930 # Hit exact DCT blocks
933 my $points = sprintf "%u,%u %u,%u", $x, $y, ($img->Get('columns') - 1), ($img->Get('rows') - 1);
934 my $lpoints = sprintf "%u,%u %u,%u", $x, $y, ($img->Get('columns') - 1), $y;
935 $img->Draw(primitive=>'rectangle', stroke=>'white', fill=>'white', points=>$points);
936 $img->Draw(primitive=>'line', stroke=>'black', strokewidth=>$dpr, points=>$lpoints);
938 # Start writing out the text
939 $x = ($img->Get('columns') - $tw) / 2;
941 my $room = ($img->Get('rows') - $dpr - $y - $th);
942 $y = ($img->Get('rows') - $dpr) - $room/2;
944 for my $part (@parts) {
947 $font = '/usr/share/fonts/truetype/msttcorefonts/Arial_Bold.ttf';
949 $font = '/usr/share/fonts/truetype/msttcorefonts/Arial.ttf';
951 $img->Annotate(text=>$part->[0], font=>$font, pointsize=>12*$dpr, x=>int($x), y=>int($y));
952 $x += ($img->QueryFontMetrics(text=>$part->[0], font=>$font, pointsize=>12*$dpr))[4];
960 return $a if ($b == 0);
961 return gcd($b, $a % $b);
965 my ($r, $res, $dbh, $id, $date, $desc) = @_;
968 if (!defined($id) || $id =~ /^\s*$/ || $id !~ /^([a-zA-Z0-9-]+)$/) {
969 push @errors, "Manglende eller ugyldig ID.";
971 if (!defined($date) || $date =~ /^\s*$/ || $date =~ /[<>&]/ || length($date) > 100) {
972 push @errors, "Manglende eller ugyldig dato.";
974 if (!defined($desc) || $desc =~ /^\s*$/ || $desc =~ /[<>&]/ || length($desc) > 100) {
975 push @errors, "Manglende eller ugyldig beskrivelse.";
978 if (scalar @errors > 0) {
982 my $vhost = Sesse::pr0n::Common::get_server_name($r);
983 $dbh->do("INSERT INTO events (event,date,name,vhost) VALUES (?,?,?,?)",
984 undef, $id, $date, $desc, $vhost)
985 or return ("Kunne ikke sette inn ny hendelse" . $dbh->errstr);
986 $dbh->do("INSERT INTO last_picture_cache (vhost,event,last_picture) VALUES (?,?,NULL)",
988 or return ("Kunne ikke sette inn ny cache-rad" . $dbh->errstr);
989 purge_cache($r, $res, "/");
999 $decoded = Encode::decode("utf-8", $text, Encode::FB_CROAK);
1002 $decoded = Encode::decode("iso8859-1", $text);
1008 # Depending on your front-end cache, you might want to get creative somehow here.
1009 # This example assumes you have a front-end cache and it can translate an X-Pr0n-Purge
1010 # regex tacked onto a request into something useful. The elements given in
1011 # should not be regexes, though, as e.g. Squid will not be able to handle that.
1013 my ($r, $res, @elements) = @_;
1014 return if (scalar @elements == 0);
1017 for my $elem (@elements) {
1018 log_info($r, "Purging $elem");
1019 (my $e = $elem) =~ s/[.+*|()]/\\$&/g;
1024 if (scalar @pe == 1) {
1027 $regex .= "(" . join('|', @pe) . ")";
1029 $regex .= "(\\?.*)?\$";
1030 $res->header('X-Pr0n-Purge' => $regex);
1033 # Find a list of all cache URLs for a given image, given what we have on disk.
1034 sub get_all_cache_urls {
1035 my ($r, $dbh, $id) = @_;
1036 my $dir = POSIX::floor($id / 256);
1039 my $q = $dbh->prepare('SELECT event, filename FROM images WHERE id=?')
1040 or die "Couldn't prepare: " . $dbh->errstr;
1042 or die "Couldn't find event and filename: " . $dbh->errstr;
1043 my $ref = $q->fetchrow_hashref;
1044 my $event = $ref->{'event'};
1045 my $filename = $ref->{'filename'};
1048 my $base = $Sesse::pr0n::Config::image_base . "cache/$dir";
1049 for my $file (<$base/$id-*>) {
1050 my $fname = File::Basename::basename($file);
1051 if ($fname =~ /^$id-mipmap-.*\.jpg$/) {
1052 # Mipmaps don't have an URL, ignore
1053 } elsif ($fname =~ /^$id--1--1\.jpg$/) {
1054 push @ret, "/$event/$filename";
1055 } elsif ($fname =~ /^$id-(\d+)-(\d+)\.jpg$/) {
1056 push @ret, "/$event/$1x$2/$filename";
1057 } elsif ($fname =~ /^$id-(\d+)-(\d+)-nobox\.jpg$/) {
1058 push @ret, "/$event/$1x$2/nobox/$filename";
1059 } elsif ($fname =~ /^$id--1--1-box\.png$/) {
1060 push @ret, "/$event/box/$filename";
1061 } elsif ($fname =~ /^$id-(\d+)-(\d+)-box\.png$/) {
1062 push @ret, "/$event/$1x$2/box/$filename";
1064 log_warn($r, "Couldn't find a purging URL for $fname");
1071 sub set_last_modified {
1072 my ($res, $mtime) = @_;
1074 my $str = POSIX::strftime("%a, %d %b %Y %H:%M:%S GMT", gmtime($mtime));
1075 $res->header('Last-Modified' => $str);
1078 sub get_server_name {
1080 my $host = $r->env->{'HTTP_HOST'};
1087 if (defined($r->{'logger'})) {
1088 $r->logger->({ level => 'info', message => $msg });
1090 print STDERR "[INFO] $msg\n";
1096 if (defined($r->{'logger'})) {
1097 $r->logger->({ level => 'warn', message => $msg });
1099 print STDERR "[WARN] $msg\n";
1105 if (defined($r->{'logger'})) {
1106 $r->logger->({ level => 'error', message => $msg });
1108 print STDERR "[ERROR] $msg\n";