Mohammed Sameer wrote:
>Hi,
>I'm not sure whether this is the right list or not. Sorry if it's not.

It is.

>Currently, QNetworkAccessManager allows setting a global proxy but what
> if I wanted to use a different proxy per connection ?

Set the proxy, send one request, then set another proxy, send another 
request.

My goal for Qt 4.5 is to allow you to set a "proxy factory" class, so that 
you can determine which proxy to use based on the connection parameters 
(protocol, host and port).

>My current use case is a browser that is using a PAC file to configure
> the proxy. Which means that one might use a different proxy per
> connection. Maybe even a different proxy per protocol (HTTP/HTTPS/FTP)!
>
>Any ideas how to implement this ?

That's exactly what I want to solve in Qt 4.5. You keep the PAC script 
pre-parsed inside QtScript and you evaluate at every connection.

Right you, you need to roll out your own solution. A simple way is to 
derive from QNetworkAccessManager and override the protected 
createRequest() function. You set the proxy on the manager before calling 
the base implementation of the function.

>I can subclass QNetworkProxy and return a different proxy HostName but
> the problem is that QNetworkProxy is not aware of the host we are
> connecting to.

QNetworkAccessManager::createRequest() is.

-- 
Thiago José Macieira - thiago.macieira AT trolltech.com
Trolltech ASA - Sandakerveien 116, NO-0402 Oslo, Norway

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