bin/extract-attachment: parse more email formats

1 files changed, 3 insertions, 1 deletions

diff --git a/bin/extract-attachment b/bin/extract-attachment
index 0cce7a1..1411270 100755
--- a/bin/extract-attachment
+++ b/bin/extract-attachment
@@ -63,6 +63,8 @@ for end in ${borders}; do
           t
           s@^Content-Type: application/zip; name="\([^"]\+\.zip\)"$@\1@
           t
+          s@^Content-Type: application/gzip; \([^;]\+; \)*name="\([^"]\+\.gz\)"$@\1@
+          t
           d
         ' \
         | tr -d '"/' \
@@ -75,7 +77,7 @@ for end in ${borders}; do
     )
 
     if printf '%s\n' "${filtered_cnt}" \
-      | grep -qx '^Content-Transfer-Encoding: \(base\|BASE\)64\s*$' \
+      | grep -qx '^Content-Transfer-Encoding: [Bb][Aa][Ss][Ee]64\s*$' \
       && [ -n "${file_name}" ]; then
       decode=true
       break