Nginx with a ICAP-like front-end

[Alder Netw]

Rajeev, you meant asking the validator or client to set X-Accel-Redirect?
Could you elaborate here? Thanks,

On Mon, Feb 27, 2017 at 9:14 AM, Rajeev J Sebastian <
rajeev.sebastian at gmail.com> wrote:

> Adler, maybe you should try X-Accel-Redirect to avoid this conversion of
> POST to GET?
>
> On Mon, Feb 27, 2017 at 10:41 PM, Rajeev J Sebastian <
> rajeev.sebastian at gmail.com> wrote:
>
>> From the docs it seems that this will work for all requests EXCEPT that,
>> the @success fallback request will always be GET.
>>
>> On Mon, Feb 27, 2017 at 10:30 PM, Alder Netw <aldernetwork at gmail.com>
>> wrote:
>>
>>> Thanks Rajeev for the recipe, I was looking into using subrequest but
>>> found subrequest
>>> only works for filter module. This looks much simpler! The only concern
>>> is error_page
>>> is only for GET/HEAD not for POST?
>>>
>>>
>>>
>>> On Sun, Feb 26, 2017 at 11:48 PM, Rajeev J Sebastian <
>>> rajeev.sebastian at gmail.com> wrote:
>>>
>>>> Not sure if this is foolproof ... but maybe you can use the error_page
>>>> fallback by responding with a special status_code.
>>>>
>>>> http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page
>>>>
>>>> location / {
>>>>
>>>>     proxy_pass http://validator;
>>>>     error_page 510 = @success;
>>>> }
>>>>
>>>> location @success {
>>>>     proxy_pass http://realbackend;
>>>> }
>>>>
>>>>
>>>> On Mon, Feb 27, 2017 at 3:41 AM, Alder Netw <aldernetwork at gmail.com>
>>>> wrote:
>>>>
>>>>> Or is there any existing module that can be adapted to achieve this?
>>>>> Appreciate if someone can shed some light. Thx,
>>>>> - Alder
>>>>>
>>>>> On Sat, Feb 25, 2017 at 9:24 PM, Alder Netw <aldernetwork at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi I want to add an ICAP-like front-end validation server V with
>>>>>> nginx.
>>>>>> The user scenario is like this:
>>>>>>
>>>>>> The client will usually access the real app server R via nginx, but
>>>>>> with
>>>>>> a validation server V, the client request will first pass to V, V
>>>>>> will dp certain
>>>>>> validation and upon sucess the request will be forwarded to R and R
>>>>>> will
>>>>>> return directly to clients; Upon failure, the request will be denied.
>>>>>>
>>>>>> Is there any easy nginx config which can achieve this? Thanks,
>>>>>>
>>>>>> - Alder
>>>>>>
>>>>>
>>>>>
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>>>>
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>>
>
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