Module: Vmail::ShowingHeaders

Included in:
ImapClient
Defined in:
lib/vmail/showing_headers.rb

Constant Summary collapse

FLAGMAP = 
{'Flagged' => '*', 'Seen' => 'Seen'}

Instance Method Summary collapse

Instance Method Details

#extract_address(address_struct) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 60

def extract_address(address_struct)
  address = if address_struct.nil?
              "Unknown"
            else
              email = [ (address_struct.mailbox ? Mail::Encodings.unquote_and_convert_to(address_struct.mailbox, 'UTF-8') : ""),
                  (address_struct.host ?  Mail::Encodings.unquote_and_convert_to(address_struct.host, 'UTF-8'): "")
                ].join('@')
              if address_struct.name
               "#{ Mail::Encodings.unquote_and_convert_to((address_struct.name || ''), 'UTF-8') } <#{ email }>"
              else
                email
              end
            end

end

#fetch_and_cache_headers(id_set) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 17

def fetch_and_cache_headers(id_set)
  log "Fetching headers for #{ id_set.size } messages"
  results = reconnect_if_necessary do
    @imap.fetch(id_set, ["FLAGS", "ENVELOPE", "RFC822.SIZE", "UID"])
  end
  results.reverse.map do |x|
    envelope = x.attr["ENVELOPE"]
    message_id = envelope.message_id
    begin
      subject = Mail::Encodings.unquote_and_convert_to((envelope.subject || ''), 'UTF-8')
    rescue Encoding::UndefinedConversionError
      log "Encoding::UndefinedConversionError:\n#{[$!.message, $!.backtrace].join("\n")}"
      subject = "[encoding could not be converted to UTF-8]"
    end
    recipients = ((envelope.to || []) + (envelope.cc || [])).map {|a| extract_address(a)}.join(', ')
    sender = extract_address envelope.from.first
    uid = x.attr["UID"]
    message = Message[message_id]
    unless message
      message = Message.new
      message.message_id = message_id
      message.save
    end
    params = {
      subject: (subject || ''),
      flags: x.attr['FLAGS'].join(','),
      date: Time.parse(envelope.date).localtime.to_s,
      size: x.attr['RFC822.SIZE'],
      sender: sender,
      recipients: recipients
    }
    # We really just need to update the flags, buy let's update everything
    message.update params

    unless Vmail::Labeling[message_id: message_id, label_id: @label.label_id]
      params = { message_id: message.message_id, uid: uid, label_id: @label.label_id }

      Labeling.create params
    end
    message_id
  end
end

#format_flags(flags) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 102

def format_flags(flags)
  flags = flags.split(',').map {|flag| FLAGMAP[flag]}.compact
  if flags.delete('Seen').nil?
    flags << '+' # unread
  end
  flags.join('')
end

#format_header_for_list(message) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 76

def format_header_for_list(message)
  date = DateTime.parse(message.date)
  formatted_date = if date.year != Time.now.year
                     date.strftime @date_formatter_prev_years
                   else
                     date.strftime @date_formatter_this_year
                   end
  address = if @mailbox == mailbox_aliases['sent']
              message.recipients
            else
              message.sender
            end

  mid_width = [@width - 38, 10].max  # force a minimum width of 10
  address_col_width = (mid_width * 0.3).ceil
  subject_col_width = (mid_width * 0.7).floor
  row_text = [ format_flags(message.flags).col(2),
               (formatted_date || '').col(@date_width),
               address.col(address_col_width),
               message.subject.col(subject_col_width),
               number_to_human_size(message.size).rcol(7),
               message.message_id ].join(' | ')
end

#get_message_headers(message_ids) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 5

def get_message_headers(message_ids)
  messages = message_ids.map {|message_id|
    m = Message[message_id]
    if m.nil?
      raise "Message #{ message_id } not found"
    end
    m
  }
  res = messages.map {|m| format_header_for_list(m)}.join("\n")
  res
end

#with_more_message_line(res) ⇒ Object 



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# File 'lib/vmail/showing_headers.rb', line 110

def with_more_message_line(res)
  remaining = @start_index
  if remaining <= 1
    return res
  end
  res + "\n>  Load #{[100, remaining].min} more messages. #{ remaining } remaining."
end