1 package Sesse::pr0n::Common;
5 use Sesse::pr0n::Templates;
6 use Sesse::pr0n::Overload;
8 use Apache2::RequestRec (); # for $r->content_type
9 use Apache2::RequestIO (); # for $r->print
10 use Apache2::Const -compile => ':common';
31 our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
33 use Sesse::pr0n::Config;
35 require Sesse::pr0n::Config_local;
40 @EXPORT = qw(&error &dberror);
42 @EXPORT_OK = qw(&error &dberror);
44 our $dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
45 $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)
46 or die "Couldn't connect to PostgreSQL database: " . DBI->errstr;
47 our $mimetypes = new MIME::Types;
49 Apache2::ServerUtil->server->log_error("Initializing pr0n $VERSION");
56 our ($dbh, $mimetypes);
59 my ($r,$err,$status,$title) = @_;
61 if (!defined($status) || !defined($title)) {
63 $title = "Internal server error";
66 $r->content_type('text/html; charset=utf-8');
70 $r->print(" <p>Error: $err</p>\n");
74 $r->log->error("Stack trace follows: " . Carp::longmess());
76 ModPerl::Util::exit();
81 error($r, "$err (DB error: " . $dbh->errstr . ")");
87 $r->content_type("text/html; charset=utf-8");
89 # Fetch quote if we're itk-bilder.samfundet.no
91 if ($r->get_server_name eq 'itk-bilder.samfundet.no') {
92 $quote = LWP::Simple::get("http://itk.samfundet.no/include/quotes.cli.php");
93 $quote = "Error: Could not fetch quotes." if (!defined($quote));
95 Sesse::pr0n::Templates::print_template($r, "header", { title => $title, quotes => Encode::decode_utf8($quote) });
100 Sesse::pr0n::Templates::print_template($r, "footer",
101 { version => $Sesse::pr0n::Common::VERSION });
105 my ($width, $height, $thumbxres, $thumbyres) = @_;
107 unless ($thumbxres >= $width &&
108 $thumbyres >= $height) {
109 my $sfh = $width / $thumbxres;
110 my $sfv = $height / $thumbyres;
118 $width = POSIX::floor($width);
119 $height = POSIX::floor($height);
122 return ($width, $height);
125 sub get_query_string {
126 my ($param, $defparam) = @_;
130 while (my ($key, $value) = each %$param) {
131 next unless defined($value);
132 next if (defined($defparam->{$key}) && $value == $defparam->{$key});
134 $value = pretty_escape($value);
136 $str .= ($first) ? "?" : ';';
137 $str .= "$key=$value";
143 # This is not perfect (it can't handle "_ " right, for one), but it will do for now
144 sub weird_space_encode {
147 return "_" x (length($val) * 2);
149 return "_" x (length($val) * 2 - 1);
153 sub weird_space_unencode {
155 if (length($val) % 2 == 0) {
156 return "_" x (length($val) / 2);
158 return " " x ((length($val) + 1) / 2);
165 $value =~ s/(([_ ])\2*)/weird_space_encode($1)/ge;
166 $value = URI::Escape::uri_escape($value);
167 $value =~ s/%2F/\//g;
172 sub pretty_unescape {
175 # URI unescaping is already done for us
176 $value =~ s/(_+)/weird_space_unencode($1)/ge;
182 my ($r, $title, $baseurl, $param, $defparam, $accesskey) = @_;
183 my $str = "<a href=\"$baseurl" . get_query_string($param, $defparam) . "\"";
184 if (defined($accesskey) && length($accesskey) == 1) {
185 $str .= " accesskey=\"$accesskey\"";
187 $str .= ">$title</a>";
192 # Check that we are alive
193 if (!(defined($dbh) && $dbh->ping)) {
195 Apache2::ServerUtil->server->log_error("Lost contact with PostgreSQL server, trying to reconnect...");
196 unless ($dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
197 $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)) {
199 die "Couldn't connect to PostgreSQL database";
208 return $r->dir_config('ImageBase');
211 sub get_disk_location {
213 my $dir = POSIX::floor($id / 256);
214 return get_base($r) . "images/$dir/$id.jpg";
217 sub get_cache_location {
218 my ($r, $id, $width, $height, $infobox) = @_;
219 my $dir = POSIX::floor($id / 256);
222 return get_base($r) . "cache/$dir/$id-$width-$height.jpg";
224 return get_base($r) . "cache/$dir/$id-$width-$height-nobox.jpg";
228 sub update_image_info {
229 my ($r, $id, $width, $height) = @_;
231 # Also find the date taken if appropriate (from the EXIF tag etc.)
232 my $exiftool = Image::ExifTool->new;
233 $exiftool->ExtractInfo(get_disk_location($r, $id));
234 my $info = $exiftool->GetInfo();
235 my $datetime = undef;
237 if (defined($info->{'DateTimeOriginal'})) {
238 # Parse the date and time over to ISO format
239 if ($info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)(?:\+\d\d:\d\d)?$/ && $1 > 1990) {
240 $datetime = "$1-$2-$3 $4:$5:$6";
245 local $dbh->{AutoCommit} = 0;
247 $dbh->do('UPDATE images SET width=?, height=?, date=? WHERE id=?',
248 undef, $width, $height, $datetime, $id)
249 or die "Couldn't update width/height in SQL: $!";
252 $dbh->do('DELETE FROM exif_info WHERE image=?',
254 or die "Couldn't delete old EXIF information in SQL: $!";
256 my $q = $dbh->prepare('INSERT INTO exif_info (image,key,value) VALUES (?,?,?)')
257 or die "Couldn't prepare inserting EXIF information: $!";
259 for my $key (keys %$info) {
260 next if ref $info->{$key};
261 $q->execute($id, $key, guess_charset($info->{$key}))
262 or die "Couldn't insert EXIF information in database: $!";
266 my @tags = $exiftool->GetValue('Keywords', 'ValueConv');
267 $dbh->do('DELETE FROM tags WHERE image=?',
269 or die "Couldn't delete old tag information in SQL: $!";
271 $q = $dbh->prepare('INSERT INTO tags (image,tag) VALUES (?,?)')
272 or die "Couldn't prepare inserting tag information: $!";
274 for my $tag (@tags) {
275 $q->execute($id, guess_charset($tag))
276 or die "Couldn't insert tag information in database: $!";
279 # update the last_picture cache as well (this should of course be done
280 # via a trigger, but this is less complicated :-) )
281 $dbh->do('UPDATE last_picture_cache SET last_picture=GREATEST(last_picture, ?) WHERE (vhost,event)=(SELECT vhost,event FROM images WHERE id=?)',
282 undef, $datetime, $id)
283 or die "Couldn't update last_picture in SQL: $!";
290 my $auth = $r->headers_in->{'authorization'};
291 if (!defined($auth) || $auth !~ m#^Basic ([a-zA-Z0-9+/]+=*)$#) {
292 $r->content_type('text/plain; charset=utf-8');
294 $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"';
295 $r->print("Need authorization\n");
299 #return qw(sesse Sesse);
301 my ($user, $pass) = split /:/, MIME::Base64::decode_base64($1);
302 # WinXP is stupid :-)
303 if ($user =~ /^.*\\(.*)$/) {
308 if ($user =~ /^([a-zA-Z0-9^_-]+)\@([a-zA-Z0-9^_-]+)$/) {
312 ($takenby = $user) =~ s/^([a-zA-Z])/uc($1)/e;
316 $pass = Digest::SHA1::sha1_base64($pass);
317 my $ref = $dbh->selectrow_hashref('SELECT count(*) AS auth FROM users WHERE username=? AND sha1password=? AND vhost=?',
318 undef, $user, $pass, $r->get_server_name);
319 if ($ref->{'auth'} != 1) {
320 $r->content_type('text/plain; charset=utf-8');
321 warn "No user exists, only $auth";
323 $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"';
324 $r->print("Authorization failed");
325 $r->log->warn("Authentication failed for $user/$takenby");
329 $r->log->info("Authentication succeeded for $user/$takenby");
331 return ($user, $takenby);
335 my ($r, $event, $filename) = (@_);
336 my $ref = $dbh->selectrow_hashref(
337 'SELECT id FROM images WHERE event=? AND filename=?',
338 undef, $event, $filename);
339 if (!defined($ref)) {
340 return (undef, undef, undef);
342 return stat_image_from_id($r, $ref->{'id'});
345 sub stat_image_from_id {
348 my $fname = get_disk_location($r, $id);
349 my (undef, undef, undef, undef, undef, undef, undef, $size, undef, $mtime) = stat($fname)
350 or return (undef, undef, undef);
352 return ($fname, $size, $mtime);
356 my ($r, $filename, $id, $dbwidth, $dbheight, $infobox, $xres, $yres, @otherres) = @_;
358 my $fname = get_disk_location($r, $id);
359 unless (defined($xres) && ($xres < $dbheight || $yres < $dbwidth || $dbwidth == -1 || $dbheight == -1 || $xres == -1)) {
363 my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox);
364 if (! -r $cachename or (-M $cachename > -M $fname)) {
365 # If we are in overload mode (aka Slashdot mode), refuse to generate
367 if (Sesse::pr0n::Overload::is_in_overload($r)) {
368 $r->log->warn("In overload mode, not scaling $id to $xres x $yres");
369 error($r, 'System is in overload mode, not doing any scaling');
372 # Need to generate the cache; read in the image
373 my $magick = new Image::Magick;
374 my $info = Image::ExifTool::ImageInfo($fname);
377 # ImageMagick can handle NEF files, but it does it by calling dcraw as a delegate.
378 # The delegate support is rather broken and causes very odd stuff to happen when
379 # more than one thread does this at the same time. Thus, we simply do it ourselves.
380 if ($filename =~ /\.nef$/) {
381 # this would suffice if ImageMagick gets to fix their handling
382 # $fname = "NEF:$fname";
384 open DCRAW, "-|", "dcraw", "-w", "-c", $fname
385 or error("dcraw: $!");
386 $err = $magick->Read(file => \*DCRAW);
389 $err = $magick->Read($fname);
393 $r->log->warn("$fname: $err");
397 error($r, "$fname: $err");
401 # If we use ->[0] unconditionally, text rendering (!) seems to crash
402 my $img = (scalar @$magick > 1) ? $magick->[0] : $magick;
404 my $width = $img->Get('columns');
405 my $height = $img->Get('rows');
407 # Update the SQL database if it doesn't contain the required info
408 if ($dbwidth == -1 || $dbheight == -1) {
409 $r->log->info("Updating width/height for $id: $width x $height");
410 update_image_info($r, $id, $width, $height);
413 # We always want RGB JPEGs
414 if ($img->Get('Colorspace') eq "CMYK") {
415 $img->Set(colorspace=>'RGB');
418 while (defined($xres) && defined($yres)) {
419 my ($nxres, $nyres) = (shift @otherres, shift @otherres);
420 my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox);
423 if (defined($nxres) && defined($nyres)) {
424 # we have more resolutions to scale, so don't throw
426 $cimg = $img->Clone();
431 my ($nwidth, $nheight) = scale_aspect($width, $height, $xres, $yres);
433 # Use lanczos (sharper) for heavy scaling, mitchell (faster) otherwise
434 my $filter = 'Mitchell';
438 if ($width / $nwidth > 8.0 || $height / $nheight > 8.0) {
445 $cimg->Resize(width=>$nwidth, height=>$nheight, filter=>$filter);
448 if (($nwidth >= 800 || $nheight >= 600 || $xres == -1) && $infobox == 1) {
449 make_infobox($cimg, $info, $r);
452 # Strip EXIF tags etc.
457 filename => $cachename,
460 if (($nwidth >= 640 && $nheight >= 480) ||
461 ($nwidth >= 480 && $nheight >= 640)) {
462 $parms{'interlace'} = 'Plane';
465 $parms{'sampling-factor'} = $sf;
467 $err = $cimg->write(%parms);
472 ($xres, $yres) = ($nxres, $nyres);
474 $r->log->info("New cache: $nwidth x $nheight for $id.jpg");
480 $r->log->warn("$fname: $err");
484 error($r, "$fname: $err");
488 return ($cachename, 1);
491 sub get_mimetype_from_filename {
492 my $filename = shift;
493 my MIME::Type $type = $mimetypes->mimeTypeOf($filename);
494 $type = "image/jpeg" if (!defined($type));
499 my ($img, $info, $r) = @_;
502 my @classic_fields = ();
504 if (defined($info->{'DateTimeOriginal'}) &&
505 $info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/
507 push @lines, "$1-$2-$3 $4:$5";
510 if (defined($info->{'Model'})) {
511 my $model = $info->{'Model'};
518 if (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)(?:\.\d+)?(?:mm)?$/) {
519 push @classic_fields, ($1 . "mm");
520 } elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) {
521 push @classic_fields, (sprintf "%.1fmm", ($1/$2));
523 if (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+)\/(\d+)$/) {
524 my ($a, $b) = ($1, $2);
525 my $gcd = gcd($a, $b);
526 push @classic_fields, ($a/$gcd . "/" . $b/$gcd . "s");
527 } elsif (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+)$/) {
528 push @classic_fields, ($1 . "s");
530 if (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\/(\d+)$/) {
533 push @classic_fields, (sprintf "f/%.0f", $f);
535 push @classic_fields, (sprintf "f/%.1f", $f);
537 } elsif (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\.(\d+)$/) {
538 my $f = $info->{'FNumber'};
540 push @classic_fields, (sprintf "f/%.0f", $f);
542 push @classic_fields, (sprintf "f/%.1f", $f);
546 # Apache2::ServerUtil->server->log_error(join(':', keys %$info));
548 if (defined($info->{'NikonD1-ISOSetting'})) {
549 push @classic_fields, $info->{'NikonD1-ISOSetting'}->[1] . " ISO";
550 } elsif (defined($info->{'ISOSetting'})) {
551 push @classic_fields, $info->{'ISOSetting'} . " ISO";
554 if (defined($info->{'ExposureBiasValue'}) && $info->{'ExposureBiasValue'} ne "0") {
555 push @classic_fields, $info->{'ExposureBiasValue'} . " EV";
556 } elsif (defined($info->{'ExposureCompensation'}) && $info->{'ExposureCompensation'} != 0) {
557 push @classic_fields, $info->{'ExposureCompensation'} . " EV";
560 if (scalar @classic_fields > 0) {
561 push @lines, join(', ', @classic_fields);
564 if (defined($info->{'Flash'})) {
565 if ($info->{'Flash'} =~ /did not fire/i ||
566 $info->{'Flash'} =~ /no flash/i ||
567 $info->{'Flash'} =~ /not fired/i ||
568 $info->{'Flash'} =~ /Off/) {
569 push @lines, "No flash";
570 } elsif ($info->{'Flash'} =~ /fired/i ||
571 $info->{'Flash'} =~ /On/) {
572 push @lines, "Flash";
574 push @lines, $info->{'Flash'};
578 return if (scalar @lines == 0);
580 # OK, this sucks. Let's make something better :-)
581 @lines = ( join(" - ", @lines) );
583 # Find the required width
584 my $th = 14 * (scalar @lines) + 6;
587 for my $line (@lines) {
588 my $this_w = ($img->QueryFontMetrics(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12))[4];
589 $tw = $this_w if ($this_w >= $tw);
594 # Round up so we hit exact DCT blocks
595 $tw += 8 - ($tw % 8) unless ($tw % 8 == 0);
596 $th += 8 - ($th % 8) unless ($th % 8 == 0);
598 return if ($tw > $img->Get('columns'));
600 # my $x = $img->Get('columns') - 8 - $tw;
601 # my $y = $img->Get('rows') - 8 - $th;
603 my $y = $img->Get('rows') - $th;
604 $tw = $img->Get('columns');
609 my $points = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), ($img->Get('rows') - 1);
610 my $lpoints = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), $y;
611 # $img->Draw(primitive=>'rectangle', stroke=>'black', fill=>'white', points=>$points);
612 $img->Draw(primitive=>'rectangle', stroke=>'white', fill=>'white', points=>$points);
613 $img->Draw(primitive=>'line', stroke=>'black', points=>$lpoints);
615 my $i = -(scalar @lines - 1)/2.0;
616 my $xc = $x + $tw / 2 - $img->Get('columns')/2;
617 my $yc = ($y + $img->Get('rows'))/2 - $img->Get('rows')/2;
618 #my $yc = ($y + $img->Get('rows'))/4;
619 my $yi = $th / (scalar @lines);
621 $lpoints = sprintf "%u,%u %u,%u", $x, $yc + $img->Get('rows')/2, ($x+$tw-1), $yc+$img->Get('rows')/2;
623 for my $line (@lines) {
624 $img->Annotate(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12, gravity=>'Center',
625 # $img->Annotate(text=>$line, font=>'Helvetica', pointsize=>12, gravity=>'Center',
626 x=>int($xc), y=>int($yc + $i * $yi));
634 return $a if ($b == 0);
635 return gcd($b, $a % $b);
639 my ($dbh, $id, $date, $desc, $vhost) = @_;
642 if (!defined($id) || $id =~ /^\s*$/ || $id !~ /^([a-zA-Z0-9-]+)$/) {
643 push @errors, "Manglende eller ugyldig ID.";
645 if (!defined($date) || $date =~ /^\s*$/ || $date =~ /[<>&]/ || length($date) > 100) {
646 push @errors, "Manglende eller ugyldig dato.";
648 if (!defined($desc) || $desc =~ /^\s*$/ || $desc =~ /[<>&]/ || length($desc) > 100) {
649 push @errors, "Manglende eller ugyldig beskrivelse.";
652 if (scalar @errors > 0) {
656 $dbh->do("INSERT INTO events (event,date,name,vhost) VALUES (?,?,?,?)",
657 undef, $id, $date, $desc, $vhost)
658 or return ("Kunne ikke sette inn ny hendelse" . $dbh->errstr);
659 $dbh->do("INSERT INTO last_picture_cache (vhost,event,last_picture) VALUES (?,?,NULL)",
661 or return ("Kunne ikke sette inn ny cache-rad" . $dbh->errstr);
671 $decoded = Encode::decode("utf-8", $text, Encode::FB_CROAK);
674 $decoded = Encode::decode("iso8859-1", $text);