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-rw-r--r--IkiWiki/Plugin/img.pm9
1 files changed, 8 insertions, 1 deletions
diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 79cfba2..b858243 100644
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -125,7 +125,14 @@ sub preprocess (@) {
}
else {
# allow ImageMagick to auto-detect (potentially dangerous)
- $format = '';
+ my $im = Image::Magick->new();
+ my $r = $im->Ping(file => $in);
+ if ($r) {
+ $format = lc $r;
+ }
+ else {
+ error sprintf(gettext("failed to determine format of %s"), $file);
+ }
}
error sprintf(gettext("%s image processing disabled in img_allowed_formats configuration"), $format ? $format : "\"$extension\"") unless allowed($format ? $format : "everything");