[wp-hackers] Is it possible to hook into the wp_http API?

Dion Hulse (dd32) wordpress at dd32.id.au
Tue Oct 1 05:04:12 UTC 2013

This should fix it for requests using the cURL transport, but some requests
might not:

add_action( 'http_api_curl', 'mysite_curl_ssl_v3' );
function mysite_curl_ssl_v3( $handle ) {
    curl_setopt($handle, CURLOPT_SSLVERSION, 3);

Can you please let us know what versions/distro's of PHP which you know is
affected by this? If you're affected, others will surely be affected, so
I'd like to get 3.7 to support, or, work around, the issue.


On 1 October 2013 14:55, Vid Luther <vid at zippykid.com> wrote:

> Hi,
>  We seem to have an issue with our systems and SSL. And, I think I need to
> sleep, so I'm asking a possibly silly question..
> *The Problem*
> The version of PHP we have, and the version of OpenSSL it's compiled with,
> causes an issue with requests to some HTTPs servers. While I try and work
> with the Ubuntu/Debian maintainers to fix this bug upstream.. or build our
> own version of PHP which could take a few weeks to test..
> https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/861137
> I was wondering if it's possible for us to put in an mu-plugin that hooks
> into the wp_http API. In a local test, we've already verified that if we
> add a line to the request method of WP_Http, specifically the line saying
>  curl_setopt($handle, CURLOPT_SSLVERSION, 3);
> Then the request works..
> *The question*
> Since this problem will probably be fixed on the distribution/PHP side when
> the next LTS comes out, it doesn't make sense to send a patch against core
> for this.
> But, we need to let the customer make his request..so we need to tell the
> WP HTTP api to use SSL v3 on purpose.
> From my understanding of Filters and Actions, a filter would be
> inappropriate here.. but an action may work.. but I don't know/can't think
> of what hook to attach this action to.
> Any ideas?
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