| #!/usr/bin/perl |
| # Simple script to generate a POST result. |
| # |
| # Depending on which button was pushed in the form, we either generate a direct |
| # result page, or we use the pattern where the post returns a 303 redirect, |
| # and then the resulting GET yields the true POST result. Sites do this trick |
| # to avoid having POSTS in the b/f list, so you don't run into POSTs getting |
| # resubmitted by accident. |
| |
| use CGI; |
| $query = new CGI; |
| $submitWithPost = $query->param('submitwithpost'); |
| $submitWithPostRedirect = $query->param('submitwithpostredirect'); |
| $submitWithPostRedirectReload = $query->param('submitwithpostredirectreload'); |
| $redirectHappened = $query->param('redirectHappened'); |
| $method = $query->request_method(); |
| |
| if (($submitWithPost && $method eq "POST") || ($redirectHappened && $method eq "GET")) { |
| |
| $textFieldData = $query->param('textfield1'); |
| |
| print "Content-type: text/html\r\n"; |
| print "Cache-Control: no-store, no-cache, must-revalidate\r\n"; |
| print "\r\n"; |
| |
| print <<HERE_DOC_END; |
| <html> |
| <body style="font-size: 32"> |
| This is just a minimal page that we navigate in response to an HTTP POST. |
| <br> |
| <br> |
| If the next line is empty after the colon, it probably means that we made |
| a mistake and requested this page with a GET with no query instead of a POST. |
| <br> |
| <br> |
| The first text field contained: $textFieldData |
| <br> |
| This page was requested with an HTTP $method |
| </body> |
| </html> |
| HERE_DOC_END |
| |
| } elsif ($submitWithPostRedirectReload && $method eq "POST") { |
| |
| print "Status: 303 See Other\r\n"; |
| print "Location: reloadresult.pl\r\n"; |
| print "Content-type: text/html\r\n"; |
| print "\r\n"; |
| |
| print <<HERE_DOC_END |
| <html> |
| <body style="font-size: 32"> |
| This page should not be seen - it is a 303 redirect to another page. |
| </body> |
| </html> |
| HERE_DOC_END |
| |
| } elsif ($submitWithPostRedirect && $method eq "POST") { |
| |
| $urlQuery = $query->query_string; |
| $urlQuery =~ s/;/&/g; # cheapo conversion from POST data to URL query format |
| # redirect to the same page, with an added param to show we've already been here |
| $urlQuery .= "&redirectHappened=true"; |
| |
| print "Status: 303 See Other\r\n"; |
| printf "Location: postresult.pl?%s\r\n", $urlQuery; |
| print "Content-type: text/html\r\n"; |
| print "\r\n"; |
| |
| print <<HERE_DOC_END |
| <html> |
| <body style="font-size: 32"> |
| This page should not be seen - it is a 303 redirect to another page. |
| </body> |
| </html> |
| HERE_DOC_END |
| |
| } else { |
| |
| $queryString = $query->query_string; |
| print "Content-type: text/html\r\n"; |
| print "\r\n"; |
| |
| print <<HERE_DOC_END |
| <html> |
| <body style="font-size: 32"> |
| Test failure: postresult.pl was called with an unexpected set of parameters. |
| <br> |
| This page was requested with an HTTP $method |
| <br> |
| The query parameters are: $queryString |
| </body> |
| </html> |
| HERE_DOC_END |
| |
| } |
| |
