Re: [Apache Module] Request External Redirection
I'm sorry but the redirection doesn't work (I'm so sad...).. It redirects just a new http request but the Informations that I need on the incoming request is not beeing requested... I think I need a mod_proxy_hook... Thank you for your help On Jan 14, 2008 7:40 PM, Joe Lewis [EMAIL PROTECTED] wrote: karim Bendadda wrote: I did that , I have a redirection to the new url but it seems that it's just a redirection , the HTTP request doesn't get in the new URl: there is my code: The only two options again are to proxy to the external server, or redirect the client to the external server. If you don't want a redirection at the web browser, you will have to proxy the request. I do not know about setting up a hook into mod_proxy to have a request proxied - it's something I've never done, but there should be many people who have done it. Anyone with any short examples? Joe -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus -- Karim
Re: [Apache Module] Request External Redirection
It's the request header, In fact I receive an http request with a certificate whish I can read by: * certificate *= *apr_table_get(r-headers_in, sslClientCertificat); *Now I want to redirect the SAME request to another server by preserving the request (and the certificate into it) when I tried this: * apr_table_setn(r-headers_out, (const char*)Location,url); ap_log_rerror(APLOG_MARK,APLOG_NOTICE,0,r,The certificate %s,apr_table_get(r-headers_out, sslClientCertificat)); return HTTP_MOVED_TEMPORARILY**; * I have the log: *The certificate= null;* * *How Can I redirect ALL the request?? Thks. On Jan 15, 2008 2:02 PM, Eric Covener [EMAIL PROTECTED] wrote: On Jan 15, 2008 5:17 AM, karim Bendadda [EMAIL PROTECTED] wrote: I'm sorry but the redirection doesn't work (I'm so sad...).. It redirects just a new http request but the Informations that I need on the incoming request is not beeing requested... I think I need a mod_proxy_hook... What information isn't retained? Something in apache? A request header? -- Eric Covener [EMAIL PROTECTED] -- Karim
Re: [Apache Module] Request External Redirection
On Jan 15, 2008 5:17 AM, karim Bendadda [EMAIL PROTECTED] wrote: I'm sorry but the redirection doesn't work (I'm so sad...).. It redirects just a new http request but the Informations that I need on the incoming request is not beeing requested... I think I need a mod_proxy_hook... What information isn't retained? Something in apache? A request header? -- Eric Covener [EMAIL PROTECTED]
Re: [Apache Module] Request External Redirection
On Mon, Jan 14, 2008 at 03:50:25PM +0100, karim Bendadda wrote: Thanks for your answer! But I don't understand the second way to implement it?? it can respond with a Location: header and a status of 302.?? On 1/14/08, Joe Lewis [EMAIL PROTECTED] wrote: karim Bendadda wrote: I'm writing a module (MyModule_mod.c) wich has an *HTTP request* as input . I want to add an information to the request (an integer) and redirect it to an *external *server ...Did you know any method for doing this? There are two paths. The server can PROXY to the external server (e.g. grab the result from the external server and then relay that to the client) or it can respond with a Location: header and a status of 302. Figure out which you wanted to do, and if you struggle to implement it, let us know. In your handler, you would do something like this to implement the latter: /* set a Location: header and 302 redirect. */ /* assemble the url by appending the filename to a baseurl */ uri = apr_pstrcat(r-pool, baseurl, filename, NULL); apr_table_setn(r-headers_out, Location, uri); return HTTP_MOVED_TEMPORARILY; Peter -- WARNING: This bug is visible to non-employees. Please be respectful! SUSE LINUX Products GmbH Research Development pgpm6ZSxphXgE.pgp Description: PGP signature
Re: [Apache Module] Request External Redirection
Dr. Peter Poeml wrote: On Mon, Jan 14, 2008 at 03:50:25PM +0100, karim Bendadda wrote: Thanks for your answer! But I don't understand the second way to implement it?? it can respond with a Location: header and a status of 302.?? On 1/14/08, Joe Lewis [EMAIL PROTECTED] wrote: karim Bendadda wrote: I'm writing a module (MyModule_mod.c) wich has an *HTTP request* as input . I want to add an information to the request (an integer) and redirect it to an *external *server ...Did you know any method for doing this? There are two paths. The server can PROXY to the external server (e.g. grab the result from the external server and then relay that to the client) or it can respond with a Location: header and a status of 302. Figure out which you wanted to do, and if you struggle to implement it, let us know. In your handler, you would do something like this to implement the latter: /* set a Location: header and 302 redirect. */ /* assemble the url by appending the filename to a baseurl */ uri = apr_pstrcat(r-pool, baseurl, filename, NULL); apr_table_setn(r-headers_out, Location, uri); return HTTP_MOVED_TEMPORARILY; Peter Exactly! What it does is forces the web client to go to the external server and request the resource/URI rather than the web server getting it for the web client. It's a standard in the HTTP protocols that 302 response codes work in a specific fashion. Joe -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus
Re: [Apache Module] Request External Redirection
Thank you for your help! How can I call the Redirect directive into the module??, In fact in the module I have a function that make an LDAP connection I want to do something like that: request_rec* my_request; //The request with new information if(my_function(user_is_defined_in_ldap)==true) Redirect my_request new_Url else Do_nothing On 1/14/08, Dr. Peter Poeml [EMAIL PROTECTED] wrote: On Mon, Jan 14, 2008 at 03:50:25PM +0100, karim Bendadda wrote: Thanks for your answer! But I don't understand the second way to implement it?? it can respond with a Location: header and a status of 302.?? On 1/14/08, Joe Lewis [EMAIL PROTECTED] wrote: karim Bendadda wrote: I'm writing a module (MyModule_mod.c) wich has an *HTTP request* as input . I want to add an information to the request (an integer) and redirect it to an *external *server ...Did you know any method for doing this? There are two paths. The server can PROXY to the external server (e.g . grab the result from the external server and then relay that to the client) or it can respond with a Location: header and a status of 302. Figure out which you wanted to do, and if you struggle to implement it, let us know. In your handler, you would do something like this to implement the latter: /* set a Location: header and 302 redirect. */ /* assemble the url by appending the filename to a baseurl */ uri = apr_pstrcat(r-pool, baseurl, filename, NULL); apr_table_setn(r-headers_out, Location, uri); return HTTP_MOVED_TEMPORARILY; Peter -- WARNING: This bug is visible to non-employees. Please be respectful! SUSE LINUX Products GmbH Research Development -- Karim
Re: [Apache Module] Request External Redirection
karim Bendadda wrote: Thank you for your help! How can I call the Redirect directive into the module??, In fact in the module I have a function that make an LDAP connection I want to do something like that: request_rec* my_request; //The request with new information if(my_function(user_is_defined_in_ldap)==true) Redirect my_request new_Url else Do_nothing Do_nothing should be return DECLINED in the handler. Redirect my_request new_URL should be almost verbatim the code that the Doc (Peter Poeml) included. Let me just snip down through to his example to make it a little more obvious. In your handler, you would do something like this to implement the latter: /* set a Location: header and 302 redirect. */ /* assemble the url by appending the filename to a baseurl */ uri = apr_pstrcat(r-pool, baseurl, filename, NULL); apr_table_setn(r-headers_out, Location, uri); return HTTP_MOVED_TEMPORARILY; And there is the how to. Recall, though, that this kind of thing shouldn't be in an input filter, but a handler. (It may, in theory, be workable in a filter, but a filter is supposed to alter input not handle requests, and a handler is supposed to give the response of the 302 or data or decline to handle it.) Joe -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus
Re: [Apache Module] Request External Redirection
karim Bendadda wrote: I did that , I have a redirection to the new url but it seems that it's just a redirection , the HTTP request doesn't get in the new URl: there is my code: The only two options again are to proxy to the external server, or redirect the client to the external server. If you don't want a redirection at the web browser, you will have to proxy the request. I do not know about setting up a hook into mod_proxy to have a request proxied - it's something I've never done, but there should be many people who have done it. Anyone with any short examples? Joe -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus
Re: [Apache Module] Request External Redirection
How can I see if my module really redirect the request?? (by the ap_log_error for example) Thank you very much for your precisous help! On 1/14/08, Joe Lewis [EMAIL PROTECTED] wrote: karim Bendadda wrote: I did that , I have a redirection to the new url but it seems that it's just a redirection , the HTTP request doesn't get in the new URl: there is my code: The only two options again are to proxy to the external server, or redirect the client to the external server. If you don't want a redirection at the web browser, you will have to proxy the request. I do not know about setting up a hook into mod_proxy to have a request proxied - it's something I've never done, but there should be many people who have done it. Anyone with any short examples? Joe -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus -- Karim
Re: [Apache Module] Request External Redirection
karim Bendadda wrote: How can I see if my module really redirect the request?? (by the ap_log_error for example) Thank you very much for your precisous help! You should see the URL change in the browser to the new location. -- Joseph Lewis http://sharktooth.org/ Divide the fire, and you will sooner put it out. - Publius Syrus
Re: [Apache Module] Request External Redirection
Sorry but I'm a beginer on developping Apache modules...Thank you for your
patience...
I dont't understand this:
/* set a Location: header and 302 redirect. */
Does'it mean to make this??:
Location /my_module
Redirect /my_module http://10.112.3.20/test
/Location
Then I tried this:
static int my_module_handler (request_rec *r){
/* assemble the url by appending the filename to a baseurl */
uri = apr_pstrcat(r-pool, http://10.112.3.20/test;, my_module,
NULL);/**/
apr_table_setn(r-headers_out, my_module, uri);
return HTTP_MOVED_TEMPORARILY;
}
Am I wrrong?? Is that means my request is redirected to
http://10.112.3.20/test??
On 1/14/08, Joe Lewis [EMAIL PROTECTED] wrote:
karim Bendadda wrote:
Thank you for your help!
How can I call the Redirect directive into the module??, In fact in the
module I have a function that make an LDAP connection I want to do
something
like that:
request_rec* my_request; //The request with new information
if(my_function(user_is_defined_in_ldap)==true)
Redirect my_request new_Url
else
Do_nothing
Do_nothing should be return DECLINED in the handler. Redirect
my_request new_URL should be almost verbatim the code that the Doc
(Peter Poeml) included. Let me just snip down through to his example to
make it a little more obvious.
In your handler, you would do something like this to implement the
latter:
/* set a Location: header and 302 redirect. */
/* assemble the url by appending the filename to a baseurl */
uri = apr_pstrcat(r-pool, baseurl, filename, NULL);
apr_table_setn(r-headers_out, Location, uri);
return HTTP_MOVED_TEMPORARILY;
And there is the how to. Recall, though, that this kind of thing
shouldn't be in an input filter, but a handler. (It may, in theory, be
workable in a filter, but a filter is supposed to alter input not handle
requests, and a handler is supposed to give the response of the 302 or
data or decline to handle it.)
Joe
--
Joseph Lewis http://sharktooth.org/
Divide the fire, and you will sooner put it out. - Publius Syrus
--
Karim
Re: [Apache Module] Request External Redirection
karim Bendadda wrote:
Sorry but I'm a beginer on developping Apache modules...Thank you for your
patience...
I dont't understand this:
/* set a Location: header and 302 redirect. */
Does'it mean to make this??:
No, that is just a C comment.
Location /my_module
Redirect /my_module http://10.112.3.20/test
/Location
This is a pre-build hard coded redirection module that does something
very similar to :
static int my_module_handler (request_rec *r){
/* assemble the url by appending the filename to a baseurl */
uri = apr_pstrcat(r-pool, http://10.112.3.20/test;, my_module,
NULL);/**/
apr_table_setn(r-headers_out, my_module, uri);
return HTTP_MOVED_TEMPORARILY;
}
However, you have two things that are wrong in your code. The resulting
uri would be http://10.112.3.20/testmy_module; because the
apr_pstrcat() function tacks the two strings together. If you already
know the full URL, you can skip the uri= line and set the headers_out.
Which brings up the other issue. The apr_table_setn must be setting a
Location header in order to meet the redirection standard. Yours is
setting my_module. Replace my_module with Location, and then
whatever is in the uri parameter is going to the web browser as the
location header, and it should contact the new server/resource.
Joe
--
Joseph Lewis http://sharktooth.org/
Divide the fire, and you will sooner put it out. - Publius Syrus
