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-rw-r--r--app/models/concerns/attachmentable.rb17
-rw-r--r--app/models/media_attachment.rb4
2 files changed, 19 insertions, 2 deletions
diff --git a/app/models/concerns/attachmentable.rb b/app/models/concerns/attachmentable.rb
index f4e37f1e6..24f5968de 100644
--- a/app/models/concerns/attachmentable.rb
+++ b/app/models/concerns/attachmentable.rb
@@ -10,10 +10,21 @@ module Attachmentable
   included do
     before_post_process :set_file_extensions
     before_post_process :check_image_dimensions
+    before_post_process :set_file_content_type
   end
 
   private
 
+  def set_file_content_type
+    self.class.attachment_definitions.each_key do |attachment_name|
+      attachment = send(attachment_name)
+
+      next if attachment.blank? || attachment.queued_for_write[:original].blank?
+
+      attachment.instance_write :content_type, calculated_content_type(attachment)
+    end
+  end
+
   def set_file_extensions
     self.class.attachment_definitions.each_key do |attachment_name|
       attachment = send(attachment_name)
@@ -47,4 +58,10 @@ module Attachmentable
 
     extension
   end
+
+  def calculated_content_type(attachment)
+    Paperclip.run('file', '-b --mime :file', file: attachment.queued_for_write[:original].path).split(/[:;\s]+/).first.chomp
+  rescue Terrapin::CommandLineError
+    ''
+  end
 end
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index a9b6d96c6..30d9a9851 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -31,9 +31,9 @@ class MediaAttachment < ApplicationRecord
   AUDIO_FILE_EXTENSIONS = ['.ogg', '.oga', '.mp3', '.wav', '.flac', '.opus'].freeze
 
   IMAGE_MIME_TYPES             = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'].freeze
-  VIDEO_MIME_TYPES             = ['video/webm', 'video/mp4', 'video/quicktime'].freeze
+  VIDEO_MIME_TYPES             = ['video/webm', 'video/mp4', 'video/quicktime', 'video/ogg'].freeze
   VIDEO_CONVERTIBLE_MIME_TYPES = ['video/webm', 'video/quicktime'].freeze
-  AUDIO_MIME_TYPES             = ['audio/wave', 'audio/wav', 'audio/x-wav', 'audio/x-pn-wave', 'audio/ogg', 'audio/mpeg', 'audio/webm', 'audio/flac'].freeze
+  AUDIO_MIME_TYPES             = ['audio/wave', 'audio/wav', 'audio/x-wav', 'audio/x-pn-wave', 'audio/ogg', 'audio/mpeg', 'audio/mp3', 'audio/webm', 'audio/flac'].freeze
 
   BLURHASH_OPTIONS = {
     x_comp: 4,