apply_filters( ‘pre_http_request’, false|array|WP_Error $response, array $parsed_args, string $url )

Filters the preemptive return value of an HTTP request.

Description

Returning a non-false value from the filter will short-circuit the HTTP request and return early with that value. A filter should return one of:

An array containing ‘headers’, ‘body’, ‘response’, ‘cookies’, and ‘filename’ elements
A WP_Error instance
boolean false to avoid short-circuiting the response

Returning any other value may result in unexpected behavior.

Parameters

$responsefalse|array|WP_Error: A preemptive return value of an HTTP request. Default false.
$parsed_argsarray: HTTP request arguments.
$urlstring: The request URL.

Source

$pre = apply_filters( 'pre_http_request', false, $parsed_args, $url );

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Used by	Description
WP_Http::request()`wp-includes/class-wp-http.php`	Send an HTTP request to a URI.

Changelog

Version	Description
2.9.0	Introduced.

User Contributed Notes

expresstechsoftware 4 years ago

add_filter( 'pre_http_request', 'pass_or_reject_request', 10, 3 );

function pass_or_reject_request( $preempt, $parsed_args, $url ){
	// filter...
	if( strpos($url, 'http(s)://any_domain.com') !==false ){
		return new WP_Error( 'http_request_block', __( "This request is not allowed", "textdomain" ) );
	}
	return $preempt;
}

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