#!/usr/bin/expect -f

# MySQL database connection settings
set CRDB_host     localhost
set CRDB_DB       test
set CRDB_username root
set CRDB_password root

# set eiter one to 1 for verbose output
log_user 0
set comments 0

package require mysqltcl

# connect to MySQL database
set handle [::mysql::connect -host $CRDB_host -user $CRDB_username -password $CRDB_password]

# get server/usernames to clean up
set userlist [::mysql::sel $handle "SELECT UserID, server, username, password, retaindays from $CRDB_DB.fetchmail_user" -flatlist]

# loop through all users in database
foreach {userid server username password days} $userlist {
  if {$comments==1} { send_user "\r\nWorking on accound #$userid\r\n*******************************\r\n" }
  eval spawn telnet -l fetchmail_cleanup $server 110
  expect "ready"
  send "USER $username\r"
  expect "password"
  send "PASS $password\r"
  expect "OK"
  send "STAT\r"
  expect "+OK "
  expect -re "\[0-9]* "
  set anz $expect_out(0,string)
  if {$comments==1} { send_user "message count: $anz \r\n" }
  set i 0
  while { $i < $anz } {
    incr i
    send "UIDL $i\r"
    expect -re "\\\+OK $i \(.*\)\r"
    set uid $expect_out(1,string)
    ::mysql::exec $handle "insert ignore into $CRDB_DB.fetchmail values ($userid,'$uid',now());"
    set age [::mysql::sel $handle "SELECT DATEDIFF(now(),Fetchdate) from $CRDB_DB.fetchmail where UserID=$userid and UID='$uid'" -list]
    if {$comments==1} { send_user "Message #$i: UID: $uid , age: $age \r\n" }
    if {$age > $days} {
      send "DELE $i\r"
      expect "deleted"
      if {$comments==1} { send_user "Message $i deleted.\r\n" }
    }
  }
  send "quit\r"
  expect "signing off"
  ::mysql::exec $handle "delete from $CRDB_DB.fetchmail where DATEDIFF(now(),Fetchdate)>($days*2) and UserID=$userid;"
}
::mysql::close $handle
exit