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 $r->print
10 use Apache2::Const -compile => ':common';
27 our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
29 use Sesse::pr0n::Config;
31 require Sesse::pr0n::Config_local;
36 @EXPORT = qw(&error &dberror);
38 @EXPORT_OK = qw(&error &dberror);
40 our $dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
41 $Sesse::pr0n::Config::db_username, $Sesse::pr0n::Config::db_password)
42 or die "Couldn't connect to PostgreSQL database: " . DBI->errstr;
43 our $mimetypes = new MIME::Types;
45 Apache2::ServerUtil->server->log_error("Initializing pr0n $VERSION");
52 our ($dbh, $mimetypes);
55 my ($r,$err,$status,$title) = @_;
57 if (!defined($status) || !defined($title)) {
59 $title = "Internal server error";
62 $r->content_type('text/html; charset=utf-8');
66 $r->print(" <p>Error: $err</p>\n");
71 ModPerl::Util::exit();
76 error($r, "$err (DB error: " . $dbh->errstr . ")");
82 $r->content_type("text/html; charset=utf-8");
84 # Fetch quote if we're itk-bilder.samfundet.no
86 if ($r->get_server_name eq 'itk-bilder.samfundet.no') {
87 $quote = LWP::Simple::get("http://itk.samfundet.no/include/quotes.cli.php");
88 $quote = "Error: Could not fetch quotes." if (!defined($quote));
90 Sesse::pr0n::Templates::print_template($r, "header", { title => $title, quotes => $quote });
95 Sesse::pr0n::Templates::print_template($r, "footer",
96 { version => $Sesse::pr0n::Common::VERSION });
100 my ($width, $height, $thumbxres, $thumbyres) = @_;
102 unless ($thumbxres >= $width &&
103 $thumbyres >= $height) {
104 my $sfh = $width / $thumbxres;
105 my $sfv = $height / $thumbyres;
113 $width = POSIX::floor($width);
114 $height = POSIX::floor($height);
117 return ($width, $height);
121 my ($r, $title, $baseurl, $param, $defparam) = @_;
122 my $str = "<a href=\"$baseurl";
125 while (my ($key, $value) = each %$param) {
126 next unless defined($value);
127 next if (defined($defparam->{$key}) && $value == $defparam->{$key});
129 $str .= ($first) ? "?" : '&';
130 $str .= "$key=$value";
134 $str .= "\">$title</a>";
139 # Check that we are alive
140 if (!(defined($dbh) && $dbh->ping)) {
142 Apache2::ServerUtil->server->log_error("Lost contact with PostgreSQL server, trying to reconnect...");
143 unless ($dbh = DBI->connect("dbi:Pg:dbname=pr0n;host=" . $Sesse::pr0n::Config::db_host,
144 $Sesse::pr0n::Config::db_user, $Sesse::pr0n::Config::db_password)) {
146 die "Couldn't connect to PostgreSQL database";
155 return $r->dir_config('ImageBase');
158 sub get_disk_location {
160 my $dir = POSIX::floor($id / 256);
161 return get_base($r) . "images/$dir/$id.jpg";
164 sub get_cache_location {
165 my ($r, $id, $width, $height, $infobox) = @_;
166 my $dir = POSIX::floor($id / 256);
169 return get_base($r) . "cache/$dir/$id-$width-$height.jpg";
171 return get_base($r) . "cache/$dir/$id-$width-$height-nobox.jpg";
175 sub update_width_height {
176 my ($r, $id, $width, $height) = @_;
178 # Also find the date taken if appropriate (from the EXIF tag etc.)
179 my $info = Image::ExifTool::ImageInfo(get_disk_location($r, $id));
180 my $datetime = undef;
182 if (defined($info->{'DateTimeOriginal'})) {
183 # Parse the date and time over to ISO format
184 if ($info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/ && $1 > 1990) {
185 $datetime = "$1-$2-$3 $4:$5:$6";
189 $dbh->do('UPDATE images SET width=?, height=?, date=? WHERE id=?',
190 undef, $width, $height, $datetime, $id)
191 or die "Couldn't update width/height in SQL: $!";
193 # update the last_picture cache as well (this should of course be done
194 # via a trigger, but this is less complicated :-) )
195 $dbh->do('UPDATE events SET last_picture=(SELECT COALESCE(MAX(date),\'1970-01-01 00:00:00\') FROM images WHERE event=events.id) WHERE id=(SELECT event FROM images WHERE id=?)',
197 or die "Couldn't update last_picture in SQL: $!";
203 my $auth = $r->headers_in->{'authorization'};
204 if (!defined($auth) || $auth !~ m#^Basic ([a-zA-Z0-9+/]+=*)$#) {
205 $r->content_type('text/plain; charset=utf-8');
207 $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"';
208 $r->print("Need authorization\n");
212 #return qw(sesse Sesse);
214 my ($user, $pass) = split /:/, MIME::Base64::decode_base64($1);
215 # WinXP is stupid :-)
216 if ($user =~ /^.*\\(.*)$/) {
221 if ($user =~ /^([a-zA-Z0-9^_-]+)\@([a-zA-Z0-9^_-]+)$/) {
225 ($takenby = $user) =~ s/^([a-zA-Z])/uc($1)/e;
229 $pass = Digest::SHA1::sha1_base64($pass);
230 my $ref = $dbh->selectrow_hashref('SELECT count(*) AS auth FROM users WHERE username=? AND sha1password=? AND vhost=?',
231 undef, $user, $pass, $r->get_server_name);
232 if ($ref->{'auth'} != 1) {
233 $r->content_type('text/plain; charset=utf-8');
234 warn "No user exists, only $auth";
236 $r->headers_out->{'www-authenticate'} = 'Basic realm="pr0n.sesse.net"';
237 $r->print("Authorization failed");
238 $r->log->warn("Authentication failed for $user/$takenby");
242 $r->log->info("Authentication succeeded for $user/$takenby");
244 return ($user, $takenby);
248 my ($r, $event, $filename) = (@_);
249 my $ref = $dbh->selectrow_hashref(
250 'SELECT id FROM images WHERE event=? AND filename=?',
251 undef, $event, $filename);
252 if (!defined($ref)) {
253 return (undef, undef, undef);
255 return stat_image_from_id($r, $ref->{'id'});
258 sub stat_image_from_id {
261 my $fname = get_disk_location($r, $id);
262 my (undef, undef, undef, undef, undef, undef, undef, $size, undef, $mtime) = stat($fname)
263 or return (undef, undef, undef);
265 return ($fname, $size, $mtime);
269 my ($r, $filename, $id, $dbwidth, $dbheight, $infobox, $xres, $yres, @otherres) = @_;
271 my $fname = get_disk_location($r, $id);
272 unless (defined($xres) && ($xres < $dbheight || $yres < $dbwidth || $dbwidth == -1 || $dbheight == -1 || $xres == -1)) {
276 my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox);
277 if (! -r $cachename or (-M $cachename > -M $fname)) {
278 # If we are in overload mode (aka Slashdot mode), refuse to generate
280 if (Sesse::pr0n::Overload::is_in_overload($r)) {
281 $r->log->warn("In overload mode, not scaling $id to $xres x $yres");
282 error($r, 'System is in overload mode, not doing any scaling');
285 # Need to generate the cache; read in the image
286 my $magick = new Image::Magick;
287 my $info = Image::ExifTool::ImageInfo($fname);
289 # NEF files aren't autodetected
290 $fname = "NEF:$fname" if ($filename =~ /\.nef$/i);
291 $r->log->warn("Generating $fname for $filename");
293 my $err = $magick->Read($fname);
295 $r->log->warn("$fname: $err");
299 error($r, "$fname: $err");
303 # If we use ->[0] unconditionally, text rendering (!) seems to crash
304 my $img = (scalar @$magick > 1) ? $magick->[0] : $magick;
306 my $width = $img->Get('columns');
307 my $height = $img->Get('rows');
309 # Update the SQL database if it doesn't contain the required info
310 if ($dbwidth == -1 || $dbheight == -1) {
311 $r->log->info("Updating width/height for $id: $width x $height");
312 update_width_height($r, $id, $width, $height);
315 # We always want RGB JPEGs
316 if ($img->Get('Colorspace') eq "CMYK") {
317 $img->Set(colorspace=>'RGB');
320 while (defined($xres) && defined($yres)) {
321 my ($nxres, $nyres) = (shift @otherres, shift @otherres);
322 my $cachename = get_cache_location($r, $id, $xres, $yres, $infobox);
325 if (defined($nxres) && defined($nyres)) {
326 # we have more resolutions to scale, so don't throw
328 $cimg = $img->Clone();
333 my ($nwidth, $nheight) = scale_aspect($width, $height, $xres, $yres);
335 # Use lanczos (sharper) for heavy scaling, mitchell (faster) otherwise
336 my $filter = 'Mitchell';
339 if ($width / $nwidth > 8.0 || $height / $nheight > 8.0) {
345 $cimg->Resize(width=>$nwidth, height=>$nheight, filter=>$filter);
348 if (($nwidth >= 800 || $nheight >= 600 || $xres == -1) && $infobox == 1) {
349 make_infobox($cimg, $info, $r);
352 # Strip EXIF tags etc.
355 $err = $cimg->write(filename=>$cachename, quality=>$quality);
359 ($xres, $yres) = ($nxres, $nyres);
361 $r->log->info("New cache: $nwidth x $nheight for $id.jpg");
367 $r->log->warn("$fname: $err");
371 error($r, "$fname: $err");
375 return ($cachename, 1);
378 sub get_mimetype_from_filename {
379 my $filename = shift;
380 my MIME::Type $type = $mimetypes->mimeTypeOf($filename);
381 $type = "image/jpeg" if (!defined($type));
386 my ($img, $info, $r) = @_;
389 my @classic_fields = ();
391 if (defined($info->{'DateTimeOriginal'}) &&
392 $info->{'DateTimeOriginal'} =~ /^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/
394 push @lines, "$1-$2-$3 $4:$5";
397 push @lines, $info->{'Model'} if (defined($info->{'Model'}));
400 if (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)(?:\.\d+)?(?:mm)?$/) {
401 push @classic_fields, ($1 . "mm");
402 } elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) {
403 push @classic_fields, (sprintf "%.1fmm", ($1/$2));
405 if (defined($info->{'ExposureTime'}) && $info->{'ExposureTime'} =~ /^(\d+)\/(\d+)$/) {
406 my ($a, $b) = ($1, $2);
407 my $gcd = gcd($a, $b);
408 push @classic_fields, ($a/$gcd . "/" . $b/$gcd . "s");
410 if (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\/(\d+)$/) {
413 push @classic_fields, (sprintf "f/%.0f", $f);
415 push @classic_fields, (sprintf "f/%.1f", $f);
417 } elsif (defined($info->{'FNumber'}) && $info->{'FNumber'} =~ /^(\d+)\.(\d+)$/) {
418 my $f = $info->{'FNumber'};
420 push @classic_fields, (sprintf "f/%.0f", $f);
422 push @classic_fields, (sprintf "f/%.1f", $f);
426 # Apache2::ServerUtil->server->log_error(join(':', keys %$info));
428 if (defined($info->{'NikonD1-ISOSetting'})) {
429 push @classic_fields, $info->{'NikonD1-ISOSetting'}->[1] . " ISO";
430 } elsif (defined($info->{'ISOSetting'})) {
431 push @classic_fields, $info->{'ISOSetting'} . " ISO";
434 push @classic_fields, $info->{'ExposureBiasValue'} . " EV" if (defined($info->{'ExposureBiasValue'}) && $info->{'ExposureBiasValue'} != 0);
436 if (scalar @classic_fields > 0) {
437 push @lines, join(', ', @classic_fields);
440 if (defined($info->{'Flash'})) {
441 if ($info->{'Flash'} =~ /did not fire/ || $info->{'Flash'} =~ /No Flash/) {
442 push @lines, "No flash";
443 } elsif ($info->{'Flash'} =~ /fired/) {
444 push @lines, "Flash";
446 push @lines, $info->{'Flash'};
450 return if (scalar @lines == 0);
452 # OK, this sucks. Let's make something better :-)
453 @lines = ( join(" - ", @lines) );
455 # Find the required width
456 my $th = 14 * (scalar @lines) + 6;
459 for my $line (@lines) {
460 my $this_w = ($img->QueryFontMetrics(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12))[4];
461 $tw = $this_w if ($this_w >= $tw);
466 # Round up so we hit exact DCT blocks
467 $tw += 8 - ($tw % 8) unless ($tw % 8 == 0);
468 $th += 8 - ($th % 8) unless ($th % 8 == 0);
470 return if ($tw > $img->Get('columns'));
472 # my $x = $img->Get('columns') - 8 - $tw;
473 # my $y = $img->Get('rows') - 8 - $th;
475 my $y = $img->Get('rows') - $th;
476 $tw = $img->Get('columns');
481 my $points = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), ($img->Get('rows') - 1);
482 my $lpoints = sprintf "%u,%u %u,%u", $x, $y, ($x+$tw-1), $y;
483 # $img->Draw(primitive=>'rectangle', stroke=>'black', fill=>'white', points=>$points);
484 $img->Draw(primitive=>'rectangle', stroke=>'white', fill=>'white', points=>$points);
485 $img->Draw(primitive=>'line', stroke=>'black', points=>$lpoints);
487 my $i = -(scalar @lines - 1)/2.0;
488 my $xc = $x + $tw / 2 - $img->Get('columns')/2;
489 my $yc = ($y + $img->Get('rows'))/2 - $img->Get('rows')/2;
490 #my $yc = ($y + $img->Get('rows'))/4;
491 my $yi = $th / (scalar @lines);
493 $lpoints = sprintf "%u,%u %u,%u", $x, $yc + $img->Get('rows')/2, ($x+$tw-1), $yc+$img->Get('rows')/2;
495 for my $line (@lines) {
496 $img->Annotate(text=>$line, font=>'/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', pointsize=>12, gravity=>'Center',
497 # $img->Annotate(text=>$line, font=>'Helvetica', pointsize=>12, gravity=>'Center',
498 x=>int($xc), y=>int($yc + $i * $yi));
506 return $a if ($b == 0);
507 return gcd($b, $a % $b);