Giovanni Donelli wrote:
I am trying to make Apache follow the same rules as the browser
Realize that the browser doesn't get the configurations for each website
it visits, it only configures, then runs using the same configuration
for every website.
That means it should be easy to create a simple module that has a single
configuration directive that points to the next proxy in the chain,
something like
WPADConfiguration http://secondproxyserver.example.com/my-proxy-file.pac
And then just configure mod_proxy, mod_proxy_http, and create a handler
that prefaces all URL's with the proxy: string, set the proxyreq setting
in the request_rec to an appropriate value, and return 1 to allow
mod_proxy to handle the rest of it.
Joe
On Jan 23, 2008 2:34 PM, Joe Lewis <[EMAIL PROTECTED]> wrote:
Giovanni Donelli wrote:
Take this pac file:
$ curl http://wpad.wws.lan/wpad.dat
function FindProxyForURL(url, host)
{
// simple hostname
if (dnsDomainLevels(host) == 0) {return "DIRECT";}
// match Host against local domains (w/ optional :port)
var dom = /(127\.\d+\.\d+\.\d+|\.wws\.lan\.?|\.local\.?)(:\d+)?/;
if(dom.test(host)) { return "DIRECT"; }
// All other requests go through port 8080 of proxy
// should that fail to respond, go direct:
return "PROXY proxy.wws.lan:8080; DIRECT";
}
Obviously the browser needs to evaluate the URL each time it wants to
make
an http request. So I want to do that in my proxy.
Currently proxy chaning in mod_proxy supports only say:
ProxyRemote * x.y.z.w
Now not having found mod_proxy can help me in that, I thought about
writing
a mod that in apache would interpret a pac file. In my configuration,
the
browser can not be aware of the pac file, only my proxy.
I tried to explain you what was my project doing, instead of asking how
override the connection to a server.
if this is not a subject of interest of this group, I do apologize for
having misunderstood the aim of it. However I still don't understand why
this should be offtopic.
Giovanni
PS: I couldn't figure out a way to search into archives from
http://mail-archives.apache.org/mod_mbox/httpd-modules-dev/. I used
google
"site:" option, and found no entry for "pac" or wpad.
On Jan 22, 2008 6:20 PM, Joe Lewis <[EMAIL PROTECTED]> wrote:
First, I want to apologize for keeping this off-topic conversation one
last time on the mailing list. I think if we allow this to be
archived,
any questions should be more easily answered using archives, hopefully
reducing our work load.
Giovanni Donelli wrote:
Hi
Thanks for your reply. I do apologize for not being clear. I will
try to restate what I want to achieve. For the sake of this discussion
allow me to simplify the browser/internet interaction as follows:
User enters URL in browser -> **browser resolves domain name** ->
connect to server x -> HTTP request....
In the way the browser **resolves** the DNS is where the pac file is
used.
You may want to read and understand the specification first. Remember
that browsers do not reconfigure each time a page is hit - they obtain
the configuration once (via a direct URL to a .pac, a DHCP response, or
a DNS lookup for a wpad hostname - it's in the spec).
The only time in those activities that apache could be involved is in
the direct URL to a .pac file - and it's a static .pac file you drop on
the web server, or serve the proxy.dat file that the DHCP specified or
the DNS method is trying to find. In any way, nothing according to
apache is occurring that is dynamic - it's just serving a .pac or .dat
file.
Which means there is no need to set up an apache module that handles
stuff like this unless you are really crazy and want to construct a
dynamically generated .pac/.dat file (I would not suggest this).
If that is the direction you want to go, we may be able to assist -
however, I doubt that is what you want. Most proxy servers have static
IP addresses, which means the .pac/.dat file should be static as well.
Once again, may apologies to those who are expecting module development
assistance in this as we're not sure we even need it yet.
Joe
--
Joseph Lewis <http://sharktooth.org/>
"Divide the fire, and you will sooner put it out." - Publius Syrus
Are you trying to make Apache follow the same rules as the browser when
it proxies (as in a proxy that uses a proxy), or just trying to set it
up? (as in double proxy)?
Joe
--
Joseph Lewis <http://sharktooth.org/>
"Divide the fire, and you will sooner put it out." - Publius Syrus
--
Joseph Lewis <http://sharktooth.org/>
"Divide the fire, and you will sooner put it out." - Publius Syrus
