[英]Translate simple Perl script into Python that sends a response to client?
我真的是Python新手,我的目標是讓Python腳本向客戶端打印一些內容,然后在網頁上顯示。
幸運的是,我偶然發現了一個很小的代碼片段,該片段完全可以實現我想用Python實現的功能-不幸的是,它是用Perl編寫的。
我想知道是否有人可以向我展示如何用Python編寫Perl腳本?
這是包含所有代碼的鏈接: http : //www.degraeve.com/reference/simple-ajax-example.php
這是Perl腳本:
#!/usr/bin/perl -w
use CGI;
$query = new CGI;
$secretword = $query->param('w');
$remotehost = $query->remote_host();
print $query->header;
print "<p>The secret word is <b>$secretword</b> and your IP is <b>$remotehost</b>.</p>";
我如何在Python中說同樣的話?
這也是HTML頁面:
<html>
<head>
<title>Simple Ajax Example</title>
<script language="Javascript">
function xmlhttpPost(strURL) {
var xmlHttpReq = false;
var self = this;
// Mozilla/Safari
if (window.XMLHttpRequest) {
self.xmlHttpReq = new XMLHttpRequest();
}
// IE
else if (window.ActiveXObject) {
self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
self.xmlHttpReq.open('POST', strURL, true);
self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
self.xmlHttpReq.onreadystatechange = function() {
if (self.xmlHttpReq.readyState == 4) {
updatepage(self.xmlHttpReq.responseText);
}
}
self.xmlHttpReq.send(getquerystring());
}
function getquerystring() {
var form = document.forms['f1'];
var word = form.word.value;
qstr = 'w=' + escape(word); // NOTE: no '?' before querystring
return qstr;
}
function updatepage(str){
document.getElementById("result").innerHTML = str;
}
</script>
</head>
<body>
<form name="f1">
<p>word: <input name="word" type="text">
<input value="Go" type="button" onclick='JavaScript:xmlhttpPost("/cgi-bin/ajaxTest.pl")'></p>
<div id="result"></div>
</form>
</body>
</html>
這樣的事情應該起作用。
#!/usr/bin/env python
import cgi
import os
import cgitb; cgitb.enable() # for troubleshooting
form = cgi.FieldStorage()
secretword = form.getfirst("w", "")
remotehost = cgi.escape(os.environ["REMOTE_HOST"] if "REMOTE_HOST" in os.environ else os.environ["REMOTE_ADDR"])
print "Content-Type: text/html"
print # blank line, end of headers
print "<p>The secret word is <b>" + secretword + "</b> and your IP is <b>" + remotehost + "</b>.</p>"
編輯1:如何列出所有環境變量。
for k in os.environ.keys():
print "<b>%20s</b>: %s<\br>" % (k, os.environ[k])
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