Add HTTP proxy configuration example

[swissspidy]

Split out from wp-cli/core-command#292

• php-curl happens to honor the http_proxy env var
• Requests defers honoring that env var to the library user (e.g., WordPress core or WP-CLI) (see also Auto use Proxy if HTTP_PROXY & HTTPS_PROXY Environment variable is set WordPress/Requests#218)
• WP-CLI doesn't want to blindly trust that env var
• One should be able to manually configure proxy support via wp-cli.yml and the extra-php config

You might be able to do something like this:

# In wp-cli.yml
require:
  - path-to/proxy.php

// proxy.php

$proxy_host = getenv( 'HTTP_PROXY' );

if ( ! $proxy_host ) {
	return;
}

$proxy_url = parse_url( $proxy_host );

if ( $proxy_url['host'] ) {
	define( 'WP_PROXY_HOST', $proxy_url['host'] );
}

if ( $proxy_url['port'] ) {
	define( 'WP_PROXY_PORT', $proxy_url['port'] );
}

This would configure the proxy for HTTP requests in core when using WP-CLI, similar to when you define this in wp-config.php. The setup would be slightly more complex for modifying HTTP requests from WP-CLI itself.

[eddyd97-sudo]

#601

[eddyd97-sudo]

9945

[eddyd97-sudo]

Host

[eddyd97-sudo]

// proxy.php

$proxy_host = getenv( 'HTTP_PROXY' );

if ( ! $proxy_host ) {
return;
}

$proxy_url = parse_url( $proxy_host );

if ( $proxy_url['host'] ) {
define( 'WP_PROXY_HOST', $proxy_url['host'] );
}

if ( $proxy_url['port'] ) {
define( 'WP_PROXY_PORT', $proxy_url['port'] );
}