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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
=begin
Feed2Imap - RSS/Atom Aggregator uploading to an IMAP Server, or local Maildir
Copyright (c) 2009 Andreas Rottmann
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
=end
require 'uri'
require 'fileutils'
require 'fcntl'
class MaildirAccount
MYHOSTNAME = Socket.gethostname
@@seq_num = 0
attr_reader :uri
def putmail(folder, mail, date = Time::now)
store_message(folder_dir(folder), date, nil) do |f|
f.puts(mail)
end
end
def updatemail(folder, mail, idx, date = Time::now, reupload_if_updated = true)
dir = folder_dir(folder)
guarantee_maildir(dir)
mail_files = find_mails(dir, idx)
flags = nil
if mail_files.length > 0
# get the info from the first result and delete everything
info = maildir_file_info(mail_files[0])
mail_files.each { |f| File.delete(File.join(dir, f)) }
elsif not reupload_if_updated
# mail not present, and we don't want to re-upload it
return
end
store_message(dir, date, info) { |f| f.puts(mail) }
end
def to_s
uri.to_s
end
def cleanup(folder, dryrun = false)
dir = folder_dir(folder)
puts "-- Considering #{dir}:"
guarantee_maildir(dir)
del_count = 0
recent_time = Time.now() -- (3 * 24 * 60 * 60) # 3 days
Dir[File.join(dir, 'cur', '*')].each do |fn|
flags = maildir_file_info_flags(fn)
# don't consider not-seen, flagged, or recent messages
mtime = File.mtime(fn)
next if (not flags.index('S') or
flags.index('F') or
mtime > recent_time)
File.open(fn) do |f|
mail = RMail::Parser.read(f)
end
if dryrun
puts "To remove: #{subject} #{mtime}"
else
puts "Removing: #{subject} #{mtime}"
File.delete(fn)
end
del_count += 1
end
puts "-- Deleted #{del_count} messages"
return del_count
end
private
def folder_dir(folder)
return File.join('/', folder)
end
def store_message(dir, date, info, &block)
guarantee_maildir(dir)
stored = false
Dir.chdir(dir) do |d|
timer = 30
fd = nil
while timer >= 0
new_fn = new_maildir_basefn(date)
tmp_path = File.join(dir, 'tmp', new_fn)
new_path = File.join(dir, 'new', new_fn)
begin
fd = IO::sysopen(tmp_path,
Fcntl::O_WRONLY | Fcntl::O_EXCL | Fcntl::O_CREAT)
break
rescue Errno::EEXIST
sleep 2
timer -= 2
next
end
end
if fd
begin
f = IO.open(fd)
# provide a writable interface for the caller
yield f
f.fsync
File.link tmp_path, new_path
stored = true
ensure
File.unlink tmp_path if File.exists? tmp_path
end
end
if stored and info
cur_path = File.join(dir, 'cur', new_fn + ':' + info)
File.rename(new_path, cur_path)
end
end # Dir.chdir
return stored
end
def find_mails(dir, idx)
dir_paths = []
['cur', 'new'].each do |d|
subdir = File.join(dir, d)
raise "#{subdir} not a directory" unless File.directory? subdir
Dir[File.join(subdir, '*')].each do |fn|
File.open(fn) do |f|
mail = RMail::Parser.read(f)
cache_index = mail.header['Message-Id']
next if not (cache_index and cache_index == idx)
dir_paths.push(File.join(d, File.basename(fn)))
end
end
end
return dir_paths
end
def guarantee_maildir(dir)
# Ensure maildir-folderness
['new', 'cur', 'tmp'].each do |d|
FileUtils.mkdir_p(File.join(dir, d))
end
end
def maildir_file_info(file)
basename = File.basename(file)
colon = basename.rindex(':')
return (colon and basename[colon + 1 .. -1])
end
# Re-written and no longer shamelessly taken from
# http://gitorious.org/sup/mainline/blobs/master/lib/sup/maildir.rb
def new_maildir_basefn(date)
fn = "#{date.to_i.to_s}.#{@@seq_num.to_s}.#{MYHOSTNAME}"
@@seq_num += 1
fn
end
end
|
