Skip decoding attachment for outgoing messages

app/src/main/java/eu/faircode/email/Core.java

@@ -2078,7 +2078,7 @@ class Core {
         MessageHelper.MessageParts parts = helper.getMessageParts();
 
         // Download attachment
-        parts.downloadAttachment(context, attachment);
+        parts.downloadAttachment(context, attachment, folder);
 
         if (attachment.size != null)
             EntityLog.log(context, "Operation attachment size=" + attachment.size);
@@ -2137,7 +2137,7 @@ class Core {
         MessageHelper.MessageParts parts = helper.getMessageParts();
 
         // Download attachment
-        parts.downloadAttachment(context, attachment);
+        parts.downloadAttachment(context, attachment, folder);
 
         if (attachment.size != null)
             EntityLog.log(context, "Operation attachment size=" + attachment.size);
@@ -3386,7 +3386,7 @@ class Core {
                         try {
                             for (EntityAttachment attachment : parts.getAttachments())
                                 if (attachment.subsequence == null)
-                                    parts.downloadAttachment(context, attachment);
+                                    parts.downloadAttachment(context, attachment, folder);
                         } catch (Throwable ex) {
                             Log.w(ex);
                         }
@@ -5155,7 +5155,7 @@ class Core {
                     if (state.getNetworkState().isUnmetered() ||
                             (attachment.size != null && attachment.size < maxSize))
                         try {
-                            parts.downloadAttachment(context, attachment);
+                            parts.downloadAttachment(context, attachment, folder);
                             if (stats != null && attachment.size != null)
                                 stats.attachments += attachment.size;
                         } catch (Throwable ex) {

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -8658,7 +8658,7 @@ public class FragmentMessages extends FragmentBase
                                             remote.sequence = index + 1;
                                             remote.id = db.attachment().insertAttachment(remote);
                                             try {
-                                                parts.downloadAttachment(context, index, remote);
+                                                parts.downloadAttachment(context, index, remote, null);
                                             } catch (Throwable ex) {
                                                 Log.e(ex);
                                             }
@@ -9369,7 +9369,7 @@ public class FragmentMessages extends FragmentBase
                         Log.i("s/mime attachment=" + remote);
 
                         try {
-                            parts.downloadAttachment(context, index, remote);
+                            parts.downloadAttachment(context, index, remote, null);
                         } catch (Throwable ex) {
                             Log.e(ex);
                         }

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -3952,7 +3952,7 @@ public class MessageHelper {
             return null;
         }
 
-        void downloadAttachment(Context context, EntityAttachment local) throws IOException, MessagingException {
+        void downloadAttachment(Context context, EntityAttachment local, EntityFolder folder) throws IOException, MessagingException {
             List<EntityAttachment> remotes = getAttachments();
 
             // Some servers order attachments randomly
@@ -4014,10 +4014,10 @@ public class MessageHelper {
             if (index < 0)
                 throw new IllegalArgumentException("Attachment not found");
 
-            downloadAttachment(context, index, local);
+            downloadAttachment(context, index, local, folder);
         }
 
-        void downloadAttachment(Context context, int index, EntityAttachment local) throws MessagingException, IOException {
+        void downloadAttachment(Context context, int index, EntityAttachment local, EntityFolder folder) throws MessagingException, IOException {
             Log.i("downloading attachment id=" + local.id + " index=" + index + " " + local);
 
             // Get data
@@ -4075,6 +4075,7 @@ public class MessageHelper {
                     throw ex;
                 }
 
+                if (folder == null || !EntityFolder.isOutgoing(folder.type)) {
                     if ("message/rfc822".equals(local.type))
                         decodeRfc822(context, local, 1);
 
@@ -4091,6 +4092,7 @@ public class MessageHelper {
                         decodeOutlook(context, local, 1);
                 }
             }
+        }
 
         private void decodeEncrypted(Context context, EntityAttachment local, AttachmentPart apart) throws MessagingException, IOException {
             ContentType ct = new ContentType(apart.part.getContentType());