Python django框架应用中实现获取访问者ip地址示例

request_meta = request.META
info = []
for k, v in request_meta.items():
info.append(k)
print info
>>>
['wsgi.version', 'RUN_MAIN', 'HTTP_REFERER', 'HTTP_HOST', 'SERVER_PROTOCOL', 'SERVER_SOFTWARE', 'SCRIPT_NAME', 'LESSOPEN', 'SSH_CLIENT', 'REQUEST_METHOD', 'LOGNAME', 'USER', 'HOME', 'QUERY_STRING', 'PATH', 'MYSQL_DATABASE_URI', 'wsgi.errors', 'TERADATA_JACKAL_URI', 'LANG', 'TERM', 'SHELL', 'TZ', 'HTTP_COOKIE', 'J2REDIR', 'REMOTE_ADDR', 'SHLVL', 'wsgi.url_scheme', 'HTTP_VIA', 'SERVER_PORT', 'wsgi.file_wrapper', 'JAVA_HOME', 'CONTENT_LENGTH', 'HTTP_CONNECTION', 'XDG_RUNTIME_DIR', 'TERADATA_PASSWORD', 'PYTHONPATH', 'COMP_WORDBREAKS', 'VIRTUAL_ENV', u'CSRF_COOKIE', 'J2SDKDIR', 'wsgi.input', 'HTTP_USER_AGENT', 'PS1', 'wsgi.multithread', 'HTTP_UPGRADE_INSECURE_REQUESTS', 'HTTP_CACHE_CONTROL', 'XDG_SESSION_ID', '_', 'HTTP_ACCEPT', 'DERBY_HOME', 'SSH_CONNECTION', 'LESSCLOSE', 'SERVER_NAME', 'GATEWAY_INTERFACE', 'HTTP_X_FORWARDED_FOR', 'SSH_TTY', 'OLDPWD', 'wsgi.multiprocess', 'HTTP_ACCEPT_LANGUAGE', 'wsgi.run_once', 'PWD', 'DJANGO_SETTINGS_MODULE', 'CONTENT_TYPE', 'TERADATA_SIMBA_URI', 'MAIL', 'LS_COLORS', 'REMOTE_HOST', 'HTTP_ACCEPT_ENCODING', 'PATH_INFO']

#X-Forwarded-For:简称XFF头，它代表客户端，也就是HTTP的请求端真实的IP，只有在通过了HTTP 代理或者负载均衡服务器时才会添加该项。
def get_ip(request):
 x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
 if x_forwarded_for:
  ip = x_forwarded_for.split(',')[0]#所以这里是真实的ip
 else:
  ip = request.META.get('REMOTE_ADDR')#这里获得代理ip
 return ip

remote_info = ''
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
 remote_info = 'HTTP_X_FORWARDED_FOR:' + x_forwarded_for.split(',')[0]
remote_addr = request.META.get('REMOTE_ADDR')
if remote_addr:
 remote_info += ' REMOTE_ADDR:' + remote_addr
if pass_auth:
 user.last_login_at = timezone.now()
 try:
  user.save()
 except Exception, msg:
  return JsonResponse({'result': 'Error', 'message': str(msg)})
 request.session['user_id'] = user_id
 request.session.set_expiry(9000)
 logger.info('[Success] '+ user_id+' has logged in! '+remote_info)
 return JsonResponse({'result': 'Success', 'message': 'Login successfully.'})
else:
 logger.warning('[Failed] '+ user_id + ' failed to login! '+remote_info)
 return JsonResponse({'result': 'Error', 'message': 'Username or Password is incorrect.'})