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File:demo.py
#!c:/Python25/python
import cgi
def send_form( dic ) :
fName = dic.getvalue("firstname", "" )
lName = dic.getvalue("lastname", "" )
flag = int( dic.getvalue("flag", "0") )
print "<form action=\"demo.py\">"
if flag == 1 and fName == "" :
print "<p><FONT COLOR='red'>Enter your first name:</FONT></p>"
else :
print "<p>Enter your first name:</p>"
if fName != "" :
print "<input type=\"text\" name=\"firstname\" value=\""+fName+"\" size=\"40\">"
else :
print "<input type=\"text\" name=\"firstname\" size=\"40\">"
if flag == 1 and lName == "" :
print "<p><FONT COLOR='red'>Enter your last name:</FONT></p>"
else :
print "<p>Enter your last name:</p>"
if lName != "" :
print "<input type=\"text\" name=\"lastname\" value=\""+lName+"\" size=\"40\">"
else :
print "<input type=\"text\" name=\"lastname\" size=\"40\">"
print "<p>"
print "<input type=\"submit\">"
print "<input type=\"reset\">"
print "<input type=\"hidden\" name=\"flag\" value=\"1\">"
print "</p>"
def gen_output( dic ) :
error = 0
fName = dic.getvalue("firstname", "" )
lName = dic.getvalue("lastname", "" )
if fName == "" or lName == "" :
error = 1
if error == 0 :
print "Hello there " + fName + " " + lName
return error
print "Content-Type: text/html\n\n"
print "<HTML>"
form = cgi.FieldStorage()
res = gen_output(form)
if res == 1:
send_form(form)
print "<form>"
print "</html>"
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