-sub cache_valid{
- my ($cache_location) = @_;
- if (-e $cache_location) {
- if (time - (stat($cache_location))[9] < 60*60) {
- return 1;
- }
- }
- return 0;
-}
-
-sub retreive_libravatar{
- my %type_mapping =
- (jpeg => 'jpg',
- png => 'png',
- gif => 'png',
- tiff => 'png',
- tif => 'png',
- pjpeg => 'jpg',
- jpg => 'jpg'
- );
- my %param = @_;
- my $cache_location = $param{location};
- $cache_location =~ s/\.[^\.]+$//;
- my $uri = libravatar_url(email => $param{email},
- default => 404,
- size => 80);
- my $ua = LWP::UserAgent->new(agent => 'Debbugs libravatar service (not Mozilla)',
- );
- $ua->from($config{maintainer});
- # if we don't get an avatar within 10 seconds, return so we don't
- # block forever
- $ua->timeout(10);
- # if the avatar is bigger than 30K, we don't want it either
- $ua->max_size(30*1024);
- my $r = $ua->get($uri);
- if (not $r->is_success()) {
- return undef;
- }
- my $aborted = $r->header('Client-Aborted');
- # if we exceeded max size, I'm not sure if we'll be successfull or
- # not, but regardless, there will be a Client-Aborted header. Stop
- # here if that header is defined.
- return undef if defined $aborted;
- my $type = $r->header('Content-Type');
- # if there's no content type, or it's not one we like, we won't
- # bother going further
- return undef if not defined $type;
- return undef if not $type =~ m{^image/([^/]+)$};
- my $dest_type = $type_mapping{$1};
- return undef if not defined $dest_type;
- # undo any content encoding
- $r->decode() or return undef;
- # ok, now we need to convert it from whatever it is into a format
- # that we actually like
- my ($temp_fh,$temp_fn) = tempfile() or
- return undef;
- eval {
- print {$temp_fh} $r->content() or
- die "Unable to print to temp file";
- close ($temp_fh);
- system('convert','-geometry','80x80',
- $temp_fn,
- $cache_location.'.'.$dest_type) == 0 or
- die "convert file failed";
- unlink($temp_fh);
- };
- if ($@) {
- unlink($cache_location.'.'.$dest_type) if -e $cache_location.'.'.$dest_type;
- unlink($temp_fn) if -e $temp_fn;
- return undef;
- }
- return $cache_location.'.'.$dest_type;
-}
-
-sub cache_location {
- my ($md5sum) = @_;
- for my $ext (qw(.png .jpg)) {
- if (-e $config{libravatar_cache_dir}.'/'.$md5sum.$ext) {
- return $config{libravatar_cache_dir}.'/'.$md5sum.$ext;
- }
- }
- return $config{libravatar_cache_dir}.'/'.$md5sum;
-}