Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
CGI Articles
Found 11 articles
How do we do a file upload using Python CGI Programming?
To upload a file, the HTML form must have the enctype attribute set to multipart/form-data. The input tag with the file type creates a "Browse" button.Example File: OutputThe result of this code is the following form −File: Choose file UploadHere is the script save_file.py to handle file upload −#!/usr/bin/python import cgi, os import cgitb; cgitb.enable() form = cgi.FieldStorage() # Get filename here. fileitem = form['filename'] # Test if the file was uploaded if fileitem.filename: # strip leading path from file name to avoid # directory traversal attacks ...
Read MoreHow to send the result of Python CGI script to the browser?
# Get data from fields from HTML page first_name = form.getvalue('first_name') last_name = form.getvalue('last_name') send data to Browser print("Content-type:text/html") print print("") print("") print("Hello - Second CGI Program") print("") print("") print(" Hello %s %s " % (first_name, last_name)) print("") print("")
Read MoreHow to retrieve cookies in Python CGI Programming?
Retrieving CookiesIt is very easy to retrieve all the set cookies. Cookies are stored in CGI environment variable HTTP_COOKIE and they will have following form −key1 = value1;key2 = value2;key3 = value3....Here is an example of how to retrieve cookies.#!/usr/bin/python # Import modules for CGI handling from os import environ import cgi, cgitb if environ.has_key('HTTP_COOKIE'): for cookie in map(strip, split(environ['HTTP_COOKIE'], ';')): (key, value ) = split(cookie, '='); if key == "UserID": user_id = value if key == "Password": password = value print ...
Read MoreWhat is the difference between GET and POST in Python CGI Programming?
GET and POST MethodsYou must have come across many situations when you need to pass some information from your browser to web server and ultimately to your CGI Program. Most frequently, browser uses two methods two pass this information to web server. These methods are GET Method and POST Method.Passing Information using GET methodThe GET method sends the encoded user information appended to the page request. The page and the encoded information are separated by the ? character as follows −http://www.test.com/cgi-bin/hello.py?key1=value1&key2=value2The GET method is the default method to pass information from browser to web server and it produces a long ...
Read MoreWhat are important HTTP headers to be frequently used in Python CGI Programming?
HTTP HeaderThe line Content-type:text/html\r\r is part of HTTP header which is sent to the browser to understand the content. All the HTTP header will be in the following form −HTTP Field Name − Field ContentFor ExampleContent-type − text/html\r\rThere are few other important HTTP headers, which we will use frequently in our CGI Programming. Sr.No.HeaderDescription1Content-type:A MIME string defining the format of the file being returned. Example is Content-type:text/html2Expires: DateThe date the information becomes invalid. It is used by the browser to decide when a page needs to be refreshed. A valid date string is in the format 01 Jan 1998 ...
Read MoreHow to read all HTTP headers in Python CGI script?
It is possible to get a custom request header's value in an apache CGI script with python. The solution is similar to this.Apache's mod_cgi will set environment variables for each HTTP request header received, the variables set in this manner will all have an HTTP_ prefix, so for example x-client-version: 1.2.3 will be available as variable HTTP_X_CLIENT_VERSION.So, to read the above custom header just call os.environ["HTTP_X_CLIENT_VERSION"].The below script will print all HTTP_* headers and values −#!/usr/bin/env python import os print "Content-Type: text/html" print "Cache-Control: no-cache" print print "" for headername, headervalue in os.environ.iteritems(): if headername.startswith("HTTP_"): print "{0} = {1}".format(headername, headervalue) ...
Read MoreHow to setup cookies in Python CGI Programming?
Setting up CookiesIt is very easy to send cookies to browser. These cookies are sent along with HTTP Header before to Content-type field. Assuming you want to set UserID and Password as cookies. Setting the cookies is done as follows −#!/usr/bin/python print "Set-Cookie:UserID = XYZ;\r" print "Set-Cookie:Password = XYZ123;\r" print "Set-Cookie:Expires = Tuesday, 31-Dec-2007 23:12:40 GMT;\r" print "Set-Cookie:Domain = www.tutorialspoint.com;\r" print "Set-Cookie:Path = /perl;" print "Content-type:text/html\r\r" ...........Rest of the HTML Content....From this example, you must have understood how to set cookies. We use Set-Cookie HTTP header to set cookies.It is optional to set cookies attributes like Expires, Domain, and Path. ...
Read MoreHow to execute Python CGI Script on Apache Server?
in apache server normally python script will not run. SO you have to go httpd.conf file in apache server, inside that you will find some .php, .asp etc in a property called AddHandler, you have to put there .py. save the file and restart the server. then run your python CGI script, it will run properly
Read MoreHow to write Python CGI program to interact with MySQL?
suppose you want to login into you account using Python CGi script, below is the details login.html email: password: login.py #!C:\Python27\python.exe import MySQLdb import cgi import Cookie # Open database connection db = MySQLdb.connect("localhost", "root", "", "student" ) # prepare a ...
Read MoreWhat Content-type is required to write Python CGI program?
If we run simple scripts like hello.py, its output is written on the STDOUT file, i.e., screen. There is one important and extra feature available which is the first line to be printed Content-type:text/html\r\r. This line is sent back to the browser and it specifies the content type to be displayed on the browser screen.We can write advanced CGI programs using Python. This script can interact with any other external system and even exchange information with RDBMS.
Read More