Python CGI - form 1

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#!/usr/bin/python

import cgi

def hlavicka(text):                    # hlavicka HTML stranky
    print "<html>"
    print "<head>"
    print "<title>", text, "</title>"
    print "</HEAD>"
    print "<body bgcolor = white>"
    
def paticka():                         # paticka HTML stranky
    print "</body>"
    print "</html>"

def formular():                        # vytvori vstupni fromular 
    hlavicka("cgi demo 02 / formular")
    print "<h3>Zadejte jmeno a heslo</h3>"
    print "<form method=post action='cgi-demo-02.py'>"
    print "<table border=0>"
    print "<tr><th>Jmeno:</th><td><input type=text name='username'></td></tr>"
    print "<tr><th>Heslo:</th><td><input type=password name='password'></td></tr>"
    print "</table>"
    print "<input type=hidden name='action' value='display'>"
    print "<input type=submit value='Zadej'>"
    print "</form>"    
    paticka()

def stranka(jmeno, heslo):
    hlavicka("cgi demo 02 / HTML stranka")
    print "Zadal jsi jmeno ", jmeno
    print " a heslo ", heslo
    paticka()

def main():
    print "Content-type: text/html"
    print

    form = cgi.FieldStorage()

    if (form.has_key("action") and form.has_key("username") \
    and form.has_key("password")):
        stranka(form["username"].value, form["password"].value)
    else:
        formular()


main()

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