Improved code layout.

app/models/channel/driver/imap.rb

@@ -75,7 +75,7 @@ example
       end
     end
 
-    Rails.logger.info "fetching imap (#{options[:host]}/#{options[:user]} port=#{port},ssl=#{ssl})"
+    Rails.logger.info "fetching imap (#{options[:host]}/#{options[:user]} port=#{port},ssl=#{ssl},folder=#{options[:folder]})"
 
     # on check, reduce open_timeout to have faster probing
     timeout = 45
@@ -173,20 +173,14 @@ example
       message_meta = @imap.fetch(message_id, ['RFC822.SIZE', 'FLAGS', 'INTERNALDATE'])[0]
 
       # ignore to big messages
-      max_message_size = Setting.get('postmaster_max_size').to_f
-      real_message_size = message_meta.attr['RFC822.SIZE'].to_f / 1024 / 1024
-      if real_message_size > max_message_size
-        info = "  - ignore message #{count}/#{count_all} - because message is too big (is:#{real_message_size} MB/max:#{max_message_size} MB)"
-        Rails.logger.info info
+      info = too_big?(message_meta, count, count_all)
+      if info
         notice += "#{info}\n"
         next
       end
 
       # ignore deleted messages
-      if message_meta.attr['FLAGS'].include?(:Deleted)
-        Rails.logger.info "  - ignore message #{count}/#{count_all} - because message has already delete flag"
-        next
-      end
+      next if deleted?(message_meta, count, count_all)
 
       # delete email from server after article was created
       msg = @imap.fetch(message_id, 'RFC822')[0].attr['RFC822']
@@ -212,4 +206,24 @@ example
     return if !@imap
     @imap.disconnect()
   end
+
+  private
+
+  def deleted?(message_meta, count, count_all)
+    return false if !message_meta.attr['FLAGS'].include?(:Deleted)
+    Rails.logger.info "  - ignore message #{count}/#{count_all} - because message has already delete flag"
+    true
+  end
+
+  def too_big?(message_meta, count, count_all)
+    max_message_size = Setting.get('postmaster_max_size').to_f
+    real_message_size = message_meta.attr['RFC822.SIZE'].to_f / 1024 / 1024
+    if real_message_size > max_message_size
+      info = "  - ignore message #{count}/#{count_all} - because message is too big (is:#{real_message_size} MB/max:#{max_message_size} MB)"
+      Rails.logger.info info
+      return info
+    end
+    false
+  end
+
 end

app/models/channel/driver/twitter.rb

@@ -202,6 +202,9 @@ returns
 
     @stream_client.client.user(filter) do |tweet|
       next if tweet.class != Twitter::Tweet && tweet.class != Twitter::DirectMessage
+
+      # wait until own posts are stored in local database to prevent importing own tweets
+      sleep 4
       next if Ticket::Article.find_by(message_id: tweet.id)
 
       # check direct message

app/models/channel/email_parser.rb

@@ -30,9 +30,9 @@ class Channel::EmailParser
         data:        'binary of attachment',
         filename:    'file_name_of_attachment.txt',
         preferences: {
-          content-alternative: true,
-          Mime-Type:           'text/plain',
-          Charset:             'iso-8859-1',
+          'content-alternative' => true,
+          'Mime-Type'           => 'text/plain',
+          'Charset:             => 'iso-8859-1',
         },
       },
     ],

app/models/store/file.rb

@@ -106,9 +106,13 @@ move files from db backend to fs
 
   Store::File.move('DB', 'File')
 
+nice move to keep system responsive
+
+  Store::File.move('DB', 'File', delay_in_sec) # e. g. 1
+
 =end
 
-    def self.move(source, target)
+    def self.move(source, target, delay = nil)
       adapter_source = load_adapter("Store::Provider::#{source}")
       adapter_target = load_adapter("Store::Provider::#{target}")
 
@@ -126,6 +130,8 @@ move files from db backend to fs
         adapter_source.delete(item.sha)
 
         logger.info "Moved file #{item.sha} from #{source} to #{target}"
+
+        sleep delay if delay
       }
       true
     end