Wapp

        dict append W .header \n$line
      }
      if {[string length [dict get $W .header]]>100000} {
        error "HTTP request header too big - possible DOS attack"
      }
    } elseif {$n==0} {
      # We have reached the blank line that terminates the header.
      if {[wappInt-parse-header $chan]} {
        catch {close $chan}
        return
      }
      set len 0
      if {[dict exists $W CONTENT_LENGTH]} {
        set len [dict get $W CONTENT_LENGTH]
      }
      if {$len>0} {
        # Still need to read the query content
        dict set W .toread $len

#
# This routine is always running inside of a [catch], so if
# any problems arise, simply raise an error.
#
proc wappInt-parse-header {chan} {
  upvar #0 wappInt-$chan W
  set hdr [split [dict get $W .header] \n]
  if {$hdr==""} {return 1}



  set req [lindex $hdr 0]
  dict set W REQUEST_METHOD [set method [lindex $req 0]]
  if {[lsearch {GET HEAD POST} $method]<0} {
    error "unsupported request method: \"[dict get $W REQUEST_METHOD]\""
  }
  set uri [lindex $req 1]
  set split_uri [split $uri ?]

      CONTENT-TYPE {set name CONTENT_TYPE}
      HOST {set name HTTP_HOST}
      COOKIE {set name HTTP_COOKIE}
      default {set name .hdr:$name}
    }
    dict set W $name $value
  }
  return 0
}

# Invoke application-supplied methods to generate a reply to
# a single HTTP request.
#
# This routine always runs within [catch], so handle exceptions by
# invoking [error].