LWP with proxy problem

Woogie

When running the sample code below without a proxy the GET returns the
expected data. When run with the $proxy uncommented the GET returns
the content of the login page for the site being accessed. The site
in the code is valid for ease of testing. I also am including the LWP
debug info for each attempt.

Can anyone explain this behavior and what can I do to correct it?

Thanks in advance

Trace without proxy:

LWP::UserAgent: :new: ()
LWP::UserAgent: :request: ()
LWP::UserAgent: :send_request: GET
https://squid.servebeer.com/getservi...ing&format=csv
LWP::UserAgent: :_need_proxy: Not proxied
LWP::Protocol:: http::request: ()
LWP::Protocol:: collect: read 28 bytes
LWP::UserAgent: :request: Simple response: OK

Home
PE
Trace with proxy:

LWP::UserAgent: :new: ()
LWP::UserAgent: :proxy: https http://148.245.207.85:8080
LWP::UserAgent: :request: ()
LWP::UserAgent: :send_request: GET
https://squid.servebeer.com/getservi...ing&format=csv
LWP::UserAgent: :_need_proxy: Proxied to http://148.245.207.85:8080
LWP::Protocol:: http::request: ()
LWP::Protocol:: collect: read 236 bytes
LWP::Protocol:: collect: read 594 bytes
LWP::Protocol:: collect: read 416 bytes
LWP::Protocol:: collect: read 450 bytes
LWP::Protocol:: collect: read 1017 bytes
LWP::Protocol:: collect: read 443 bytes
LWP::Protocol:: collect: read 643 bytes
LWP::UserAgent: :request: Simple response: OK

<html lang="en">


<head>
<title>

Error

</title>
<script language="JavaS cript">
....

Here is the sample code:
#!/usr/bin/perl -w

use LWP::UserAgent;
use HTTP::Request;
use HTTP::Response;
use Crypt::SSLeay;

LWP::Debug::lev el('+');

$url = "https://squid.servebeer .com/getservices.do? user=Guest&pass word=JustLookin g&format=csv" ;
#$proxy="http://xxx.xxx.xxx.xxx :8080";

$ua = LWP::UserAgent->new();

if (defined $proxy)
{
$ENV{HTTPS_PROX Y} = $proxy;

# initialize from environment variables
$ua->env_proxy;
}

$req = HTTP::Request->new(GET => $url);
$response = $ua->request($req );
if ($response->is_error())
{
printf " %s\n", $response->status_line;
}

else
{
$content = $response->content();
print $content;
}

exit;

Jul 19 '05 #1

Subscribe Reply

12664

Roy Johnson

Note: you'll reach more people at comp.lang.perl. misc. This newsgroup
does not officially exist, and so is not universally propogated.

LWP::UserAgent sends the wrong request for HTTPS connections by proxy.
In the docs for Crypt::SSLeay, you'll find this:
http://search.cpan.org/~chamas/Crypt...#PROXY_SUPPORT
LWP::UserAgent has its own methods of proxying which may work for you
and is likely incompatible with Crypt::SSLeay proxy support. To use
LWP::UserAgent proxy support, try something like:

my $ua = new LWP::UserAgent;
$ua->proxy([qw( https http )], "$proxy_ip:$pro xy_port");

At the time of this writing, libwww v5.6 seems to proxy https requests
fine with an Apache mod_proxy server. It sends a line like:

GET https://www.nodeworks.com HTTP/1.1

to the proxy server, which is not the CONNECT request that some
proxies would expect, so this may not work with other proxy servers
than mod_proxy. The CONNECT method is used by Crypt::SSLeay's internal
proxy support.
Crypt::SSLeay Proxy Support

For native Crypt::SSLeay proxy support of https requests, you need to
set an environment variable HTTPS_PROXY to your proxy server & port,
as in:

# PROXY SUPPORT
$ENV{HTTPS_PROX Y} = 'http://proxy_hostname_ or_ip:port';
$ENV{HTTPS_PROX Y} = '127.0.0.1:8080 ';

Use of the HTTPS_PROXY environment variable in this way is similar to
LWP::UserAgent->env_proxy() usage, but calling that method will likely
override or break the Crypt::SSLeay support, so do not mix the two.
</excerpt>

This is the code I use, *after* the UserAgent has been created:

# LWP proxying does not work for HTTPS
# This must cannot be set at the time $a is created
$ENV{HTTPS_PROX Y} = $proxy;

Jul 19 '05 #2

Similar topics

1425

SSL and Proxy problem with urllib2 ?

by: Robert | last post by:

using a proxy and https/SSL together I get the following SSL error : File "dscore.pyo", line 2257, in UrlOpenEx File "ClientCookie\_urllib2_support.pyo", line 572, in open File "ClientCookie\_urllib2_support.pyo", line 472, in http_response File "ClientCookie\_urllib2_support.pyo", line 589, in error File "urllib2.pyo", line 304, in _call_chain File "ClientCookie\_urllib2_support.pyo", line 181, in http_error_302 File...

Python

2941

Web Proxy Problem

by: Lentdave67t | last post by:

Thank you in advance for any help you can provide. I am writing a C# program that checks to see if the URLs of favorites/bookmarks are still good. The problem I am having is that while the program is checking the URLs, the text in a label on the current window will not update until after all URLs are checked. I think the Form/Window is frozen while the http requests are occuring. Does anyone know of a way I can update the Form in real...

.NET Framework

1176

Proxy problem with InetTransferLib

by: Owen Jenkins | last post by:

My Access application downloads file from my website using the InetTransferLib http functions. One of my clients working from a hospital network gets an error message 'proxy authentication required' and cannot proceed. Can anyone point me in a direction to get around this problem? He is behind a firewall but has no trouble surfing using his web browser. Are there any settings he can adjust to make the download successful? Or do you think...

Microsoft Access / VBA

1160

Dynamic web service proxy problem

by: Jimmy Carlsson | last post by:

Can I please get a reply on this or a hint on who or where I can ask. // Jimmy >-----Original Message----- >Hi! > >I'm automatically generating a proxy for a web service >using a supplied WSDL. The generator compiles the proxy

C# / C Sharp

2354

proxy proxy problem

by: Ohad Young | last post by:

Hi, I have a webservice method that returns an instance of a custom class I created (e.g., bank account). The class definition in the webservice contains properties, overrides Object.ToString method and etc. However, the proxy created for the webservice contains a definition for this class without the code I wrote. Instead it contains only public fields. I understand the reason, interoperability with none .net clients, but is there...

.NET Framework

1260

HTTPS proxy problem

by: Chad Z. Hower aka Kudzu | last post by:

I have a webservice which is running on SSL. All clients work fine - except one. The one user has a proxy. In the IE configuration he has a proxy filled in for HTTP, but not for HTTPS. Their proxy does not support HTTPS. When they enter the ?wsdl url into IE - all works fine and the WSDL is returned. But from our client app, it gives a a socket error. HOWEVER if the user goes into IE, and turns off the proxy setting, then the client works...

.NET Framework

1852

Perl - downloading files - proxy problem

by: c83 | last post by:

I am using Active Perl, and i-am having problems downloading files from internet because of the proxy. The script is workin when no proxy is present, but now it refuses to download files. Here is the script: #use module use XML::Simple; use Data::Dumper; use LWP::Simple; #test function sub test_func

Perl

1540

HttpWebRequest proxy problem

by: =?Utf-8?B?U3VzaGlTZWFu?= | last post by:

Hello, I have some code which use HttpWebRequest class and I see by default it use IE proxy settings. It means If I will not put any proxy this class get IE proxy and use it. How turn this off? Can I use some global settings in code force this class don't use IE by default?

ASP.NET

4470

Accessing a web service - proxy problem

by: Jon | last post by:

I wrote a VS 2005 C# express programme that accesses a web service. It works fine when there's a direct connection to the internet, but on two different PCs with internet access via a proxy, I get this exception: System.Net.WebException: The request failed with HTTP status 407: Proxy Authentication Required. at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream...

.NET Framework

9707

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

General

9585

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...

Windows Server

10586

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

10338

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

9161

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...

Career Advice

6856

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

5525

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

4301

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

3823

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP