Re: OpenResty, outgoing HTTPS request

agentzh · 2013-07-02T02:54:20+00:00

So that mean i can store lot of data(hash table as example) in dict and sync with ngx.timer.Thanks for answer.On Tuesday, July 9, 2013 4:10:30 AM UTC+4, agen...

Re: OpenResty, outgoing HTTPS request

agentzh

Hello!

On Mon, Jul 1, 2013 at 2:44 AM, Thomas Dignan wrote:
> I have been playing with nginx and openresty the past few days and it has
> been fun. My goal is to build a cache with redis.
>

Glad you like it :)

> Currently, I have found 2 http client libraries in Lua for OpenResty:
> https://github.com/bsm/lua-resty-http and
> https://github.com/liseen/lua-resty-http
>
> bsm's version seemed further along, so I've been using that.
>

Actually there is a third one from Brian Akins:

    https://github.com/bakins/lua-resty-http-simple

Because there's no official lua-resty-http libraries (yet), it is up
to you to make a decision :)

> My question is, do either of those client support https? If not, I'm
> assuming you must do this task. How do you do it?
>

I don't think any of them supports https due to the lack of SSL
support in the underlying ngx_lua cosocket API.

I'm going to implement SSL cosockets soon. In the meantime, you're
encouraged to use ngx.location.capture to issue an nginx subrequest to
an internal location configured by the standard ngx_proxy module. See

    http://wiki.nginx.org/HttpLuaModule#ngx.location.capture

BTW, I'm cc'ing the openresty-en mailing list:
https://groups.google.com/group/openresty-en you're recommended to
post such questions there in the future :)

Thanks!
-agentzh

appa

Why not use cURL? http://msva.github.io/lua-curl/

It has SSL support and is less cruftier than Socket,

----appa

On Mon, Jul 1, 2013 at 8:54 PM, Yichun Zhang (agentzh) <age...@gmail.com> wrote:

Hello!

On Mon, Jul 1, 2013 at 2:44 AM, Thomas Dignan wrote:
> I have been playing with nginx and openresty the past few days and it has
> been fun. My goal is to build a cache with redis.
>

Glad you like it :)

> Currently, I have found 2 http client libraries in Lua for OpenResty:
> https://github.com/bsm/lua-resty-http and
> https://github.com/liseen/lua-resty-http
>
> bsm's version seemed further along, so I've been using that.
>

Actually there is a third one from Brian Akins:

https://github.com/bakins/lua-resty-http-simple

Because there's no official lua-resty-http libraries (yet), it is up
to you to make a decision :)

> My question is, do either of those client support https? If not, I'm
> assuming you must do this task. How do you do it?
>

I don't think any of them supports https due to the lack of SSL
support in the underlying ngx_lua cosocket API.

I'm going to implement SSL cosockets soon. In the meantime, you're
encouraged to use ngx.location.capture to issue an nginx subrequest to
an internal location configured by the standard ngx_proxy module. See

http://wiki.nginx.org/HttpLuaModule#ngx.location.capture

BTW, I'm cc'ing the openresty-en mailing list:
https://groups.google.com/group/openresty-en you're recommended to
post such questions there in the future :)

Thanks!
-agentzh.

agentzh

Hello!

On Mon, Jul 1, 2013 at 4:46 PM, António P. P. Almeida <a...@perusio.net> wrote:
> Why not use cURL? http://msva.github.io/lua-curl/
>
> It has SSL support and is less cruftier than Socket,
>

In the context of ngx_lua, this Lua library will block nginx worker
processes on I/O operations and ruin the C10K capability of Nginx.

Best regards,
-agentzh

appa

AFAIK, not if you use sub requests through a multi capture of the URI.

Le 2 juil. 2013 02:28, "Yichun Zhang (agentzh)" <age...@gmail.com> a écrit :

Hello!

On Mon, Jul 1, 2013 at 4:46 PM, António P. P. Almeida <a...@perusio.net> wrote:
> Why not use cURL? http://msva.github.io/lua-curl/
>
> It has SSL support and is less cruftier than Socket,
>

In the context of ngx_lua, this Lua library will block nginx worker
processes on I/O operations and ruin the C10K capability of Nginx.

Best regards,
-agentzh.

agentzh

Hello!

On Mon, Jul 1, 2013 at 5:39 PM, António P. P. Almeida <a...@perusio.net> wrote:
> AFAIK, not if you use sub requests through a multi capture of the URI.
>

Use of Nginx subrequests is a way to reuse existing (nonblocking)
nginx upstream modules (and other nginx C modules) from within Lua but
it will *not* make blocking things in Nginx magically become
nonblocking.

Best regards,
-agentzh