1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
# frozen_string_literal: true
module Mail::Parsers
class ReceivedParser
def parse(s)
raise Mail::Field::ParseError.new(Mail::ReceivedElement, s, 'nil is invalid') if s.nil?
actions, error = Ragel.parse(:received, s)
if error
raise Mail::Field::ParseError.new(Mail::ReceivedElement, s, error)
end
received = ReceivedStruct.new
received_tokens_s = date_s = time_s = nil
actions.each_slice(2) do |action_id, p|
action = Mail::Parsers::Ragel::ACTIONS[action_id]
case action
# Received Tokens:
when :received_tokens_s then received_tokens_s = p
when :received_tokens_e
received.info = s[received_tokens_s..(p-1)]
# Date
when :date_s then date_s = p
when :date_e
received.date = s[date_s..(p-1)].strip
# Time
when :time_s then time_s = p
when :time_e
received.time = s[time_s..(p-1)]
when :angle_addr_s, :comment_e, :comment_s,
:domain_e, :domain_s, :local_dot_atom_e,
:local_dot_atom_pre_comment_e,
:local_dot_atom_pre_comment_s,
:local_dot_atom_s, :qstr_e, :qstr_s,
:local_quoted_string_s, :local_quoted_string_e
# ignored actions
else
raise Mail::Field::ParseError.new(Mail::ReceivedElement, s, "Failed to process unknown action: #{action}")
end
end
received
end
end
end
|
