WCGI WordPress Demo

This demo contains a WordPress website that can be run as a WCGI program by Wasmer.

Getting Started

To run this demo, you will need to install the Wasmer toolchain.

$ curl https://get.wasmer.io -sSfL | sh -s "v3.2.0-beta.2"

(version v3.2.0-beta.2 or more recent is required).

You can use wasmer run-unstable to run the website locally.

$ wasmer run-unstable . --mapdir=/db:db
INFO run: wasmer_wasix::runners::wcgi::runner: Starting the server address=127.0.0.1:8000 command_name="php"

Hacks / Adaptations

This codebase does the following hacks to Wordpress to have it full running:

• Replace exit; or die; to exit(0); or die(0);: they are equivalent, but they don't work without the arguments on the php-cgi WASI counterpart
• Call echo " "; before exit as any header sent before an exit will be skipped if no body is being written

Replaced wp-includes/class-wp-http.php, wp-includes/class-wp-http-streams.php, wp-includes/class-wp-http-curl.php to return WP_Error;

public function request( $url, $args = array() ) {
  if (defined("IS_WASI") && IS_WASI) {
    return new WP_Error( 'http_request_failed', __( "The HTTP request to $url failed." ) );
  }
  // ...
}

Replaced _maybe_update_plugins in wp-includes/update.php:

function _maybe_update_plugins() {
  if (defined("IS_WASI") && IS_WASI) {
    return [
      "last_checked" => time() - 5,
    ];
  }
  // ...
}

License

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.