+sub match_mimetype ($$;@) { #{{{
+ shift;
+ my $wanted=shift;
+
+ my %params=@_;
+ if (! exists $params{file}) {
+ return IkiWiki::FailReason->new("no file specified");
+ }
+
+ # Use ::magic to get the mime type, the idea is to only trust
+ # data obtained by examining the actual file contents.
+ eval q{use File::MimeInfo::Magic};
+ if ($@) {
+ return IkiWiki::FailReason->new("failed to load File::MimeInfo::Magic ($@); cannot check MIME type");
+ }
+ my $mimetype=File::MimeInfo::Magic::magic($params{file});
+ if (! defined $mimetype) {
+ $mimetype="unknown";
+ }
+
+ # turn glob into a safe regexp
+ my $regexp=quotemeta($wanted);
+ $regexp=~s/\\\*/.*/g;
+ $regexp=~s/\\\?/./g;
+
+ if ($mimetype!~/^$regexp$/i) {
+ return IkiWiki::FailReason->new("file MIME type is $mimetype, not $wanted");
+ }
+ else {
+ return IkiWiki::SuccessReason->new("file MIME type is $mimetype");
+ }
+} #}}}
+