#!/usr/bin/python
""" $Id: headers,v 1.9 2014-01-30 19:02:00 brett Exp $
Maintainer: dom@w3.org
"""
import cgi
import sys
import os
import urlparse
import urllib
import http_head
import http_auth
import string
from cleanhtml import *
Page1 = """Content-Type: text/html; charset=utf-8
HTTP HEAD service%s
HTTP Head%s
Description
This tool takes the URI of a document as input and outputs the HTTP headers sent by the server for this resource.
"""
Page2 = """
Note that this script doesn't transmit your browsers HTTP headers when doing the request.
See also the underlying Python scripts.
script $Revision: 1.9 $ of $Date: 2014-01-30 19:02:00 $
by Dominique Hazael-Massieux
"""
class myURLopener(http_head.HEADURLopener,http_auth.ProxyAuthURLopener):
def __init__(self,auth=0,*args):
self.auth = auth
apply(http_auth.ProxyAuthURLopener.__init__, (self,) + args)
def http_error_default(self, url, fp, errcode, errmsg, headers):
return None
def http_error(self, url, fp, errcode, errmsg, headers, data=None):
formatHeaders(errcode,errmsg,headers)
return urllib.URLopener.http_error(self, url, fp, errcode, errmsg, headers, data)
def retry_http_basic_auth(self, url, realm, data=None):
if self.auth==1:
return http_auth.ProxyAuthURLopener.retry_http_basic_auth(self,url,realm,data)
else:
return None
def retry_https_basic_auth(self, url, realm, data=None):
if self.auth==1:
return http_auth.ProxyAuthURLopener.retry_https_basic_auth(self,url,realm,data)
else:
return None
def formatHeaders(errcode,errmsg,headers):
res = [clean_format("%s %s", `errcode`, errmsg)]
for key in headers.keys():
headerName = '-'.join(word.capitalize()
for word in key.split('-'))
res.append(clean_format(": ", headerName, headers[key]))
res.append('')
return "\n".join(res)
def serveRequest():
fields = cgi.FieldStorage()
uri = fields.getfirst('url')
if uri is None:
print Page1 % ("","")
print Page2 % ("","","")
sys.exit()
auth = (fields.getfirst('auth', '') == 'on')
if auth:
auth_text = "checked='checked'"
else:
auth_text = ""
url_opener = myURLopener(auth)
remote_addr = os.environ.get('REMOTE_ADDR')
if remote_addr:
url_opener.addheader('X_Fwd_IP_Addr', remote_addr)
try:
fp = url_opener.open(uri)
except IOError as e:
url_opener.error = "I/O error: %s %s" % (e.errno,e.strerror)
fp = None
esc_uri = clean_str(uri)
title = " for %s" % (esc_uri)
link = " for %s" % (esc_uri, esc_uri)
print Page1 % (title,link)
print 'Results
\n'
if fp:
print formatHeaders(200,"OK",fp.info())
fp.close()
else:
clean_print("An error occured %s", url_opener.error)
print ''
print Page2 % (esc_uri, auth_text, "")
if __name__ == '__main__':
if os.environ.has_key('SCRIPT_NAME'):
serveRequest()