Friday, October 22, 2010

GET Request

Most URL’s (Uniform Resource Locator) have the form:    


                  protocol://serverName URI 


e.g., http://www.csc.liv.ac.uk/~martin/index.html


To retrieve a document via HTTP from the server, we can issue a GET request using the HTTP protocol


                               GET URI HTTP/1.1
                               Host: serverName

Web server only knows the contents of the GET request message

  • this request is automatically generated by browser when you select a URL
  • could also come from a link checker, a search engine robot, …
  • can come directly from a telnet connection using port 80

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