AML KDT750 Price Verification System - Manual (Page 22)

KDT750 APL Guide
3 - 4
Example Server Source Code
import os
import cgi
import urllib
form = cgi.FieldStorage()
inputdata = ""
### Note that urllib.quote method is used to URL encode all outbound data
# Handle button presses (just reply with the button name)
if form.has_key('BUT') :
button = form["BUT"]
print "Content-type: text/html\n\n" # Header is important
print "FIELD1=” + urllib.quote ( “You pressed button " + button.value )
print "@FIELD1=” + urllib.quote ( “100,165,440,35,200,220" )
# Handle MSR read
elif form.has_key('MSR') :
fld = form["MSR"]
inputdata = fld.value
print "Content-type: text/html\n\n"
print "MAGDATA=" + urllib.quote( inputdata )
print "@MAGDATA=” + urllib.quote ( “20,250,600,45,0,50"
# Handle internal bar code read
elif form.has_key('BAR') :
fld = form["BAR"]
inputdata = fld.value
print "Content-type: text/html\n\n"
# Handle the database lookup
price = do_database( "SELECT Cost FROM 'Inventory' WHERE PN='" + inputdata )
des = do_database( "SELECT Desc FROM 'Inventory' WHERE PN='" + inputdata )
if price != "" :
# URL encode the data and dump it out
print "PRC=" + urllib.quote ( price )
print "DES=" + urllib.quote ( des )
print "@DES=" + urllib.quote ( "45,150,500,35,255,220" )
print "PN=" + urllib.quote ( "P/N: " + inputdata )
print "@PN=" + urllib.quote ( "200,200,240,35,35,50" )
print "RELAY=" + urllib.quote ( "1,3,2" )
else :
# Display an error to the user
print "FIELD1=" + urllib.quote ( " I'm sorry, I couldn't" + '\n' +
" find that item." + '\n' + '\n' + "Would you like assistance?" );
print "@FIELD1=" + urllib.quote ( "125,145,510,250,219,255" )
print "FIELD2=" + urllib.quote ( "Press for assistance" + '\n' + "v" )
print "@FIELD2=" + urllib.quote ( "15,370,340,75,255,220" )
else :
# No valid ITEM names, send blank reply to show an error
print "Content-type: text/html\n\n"