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;mIRC Update Checker v2.0
;by Soul_Eater
;/download alias by ^andy, has been modified.
;Syntax:
;/mircupd check 
;<<--checks version of mIRC.
;/mircupd list
;<<--retrieves the list of whats new in mIRC
;/mircupd get
;<<--downloads the newest copy of mIRC

alias -l input1 { var %x $input(Your copy of mIRC is up to date!,oi,Status) }
alias -l input2 { 
  if ($input(The latest copy of mIRC available is %mu-num Update?,yi,Status)) { mircupd get }
}
;on *:start:mircupd check
alias mircupd {
  unset %sockread*
  sockopen mirc www.mirc.co.uk 80
  set %mu-r $1
}
ON *:SOCKOPEN:mirc:{
  if ($sockerr) {
    echo -s $sock($sockname).wsmsg
    return
  }
  if (%mu-r == check) { sockwrite -n $sockname GET /index.html HTTP/1.1 }
  if (%mu-r == list) { set %mu-x 0 | sockwrite -n $sockname GET /whatsnew.txt HTTP/1.1 | window -a @MU-List }
  if (%mu-r == get) { sockwrite -n $sockname GET /get.html HTTP/1.1 }
  sockwrite -n $sockname Host: www.mirc.co.uk $+ $str($crlf,2)
}
ON *:SOCKREAD:mirc:{
  if ($sockerr) {
    sockclose mirc
    return
  }
  sockread %sockread
  if (%mu-r == list) { 
    if (%sockread) {
      if (%mu-x >= 9) {
        aline @MU-List %sockread
      }
      inc %mu-x
    }
  }
  if (%mu-r == check) {
    if (*<B>mIRC* iswm %sockread)  {
      if (%mu-num) { sockclose $sockname }
      set %mu-num $gettok($remove($gettok(%sockread,3,62),</B),2,32)
      if ($version == %mu-num) { .timer -m 1 0 input1 }
      if ($version < %mu-num) { .timer -m 1 0 input2 }
    }
  }
  if (%mu-r == get) {
    if (*cabinet* iswm %sockread) && (*older* !iswm %sockread) { set %mu-fn $remove($gettok(%sockread,2,62),</B) }
    if (%mu-fn isin %sockread)  { set %mu-fd $gettok(%sockread,2,34) }
  }
}
ON *:SOCKCLOSE:mirc:{
  if (%mu-r == list) { unset %sockread* %mu-* }
  if (%mu-r == get) { download %mu-fd } 
  else { unset %sockread* %mu-* }
}

alias -l download {
  if ($sock(dl)) {
    echo $colour(info text) @download *** already downloading; please wait.
    return
  }
  sockopen dl $gettok($1,2,47) 80
}
on *:sockopen:dl:{
  if ($sockerr) {
    echo $colour(info text) @download *** error $sock($sockname).wsmsg when downloading
    return
  }
  write -c %mu-fn
  unset %downloadlength %downloadready
  window -c @download
  sockwrite -n $sockname GET $+(/,$gettok(%mu-fd,3-,47)) HTTP/1.0
  sockwrite -n $sockname Accept: */*
  sockwrite -n $sockname Host: $gettok(%mu-fd,2,47) $+ $str($crlf,2)
  sockwrite -n $sockname
}
on *:sockread:dl:{
  if (%downloadready != 1) {
    var %header
    sockread %header
    while ($sockbr) {
      if (Content-length: * iswm %header) {
        %downloadlength = $gettok(%header,2,32)
        if (* !iswm $window(@download)) window @download
        echo $colour(info text) @download *** file size: %downloadlength bytes
      }
      elseif (* !iswm %header) {
        %downloadready = 1
        %downloadoffset = $sock($sockname).rcvd
        break
      }
      sockread %header
    }
  }
  sockread 4096 &d
  while ($sockbr) {
    if (* !iswm $window(@download)) window @download
    echo $colour(info text) @download *** received: $round( $calc(100 * ($sock($sockname).rcvd - %downloadoffset) / %downloadlength) ,1) $+ %
    bwrite %mu-fn -1 -1 &d
    sockread 4096 &d
  }
}
on *:sockclose:dl:{
  echo $colour(info text) @download *** done downloading %mu-fn
  run %mu-fn
}
menu @download {
  Stop Downloading:sockclose dl | .remove %mu-fn
  Close Window:window -c @download
}