_xmlrpc_wp_die_handler() – Kills WordPress execution and displays XML response with an error message.
Jetpack_Core_API_XMLRPC_Consumer_Endpoint::is_site_public() – Checks if the site is public and returns the result.
Jetpack_Sitemap_Stylist::sitemap_xsl_css() – The CSS to be included in sitemap xsl stylesheets; factored out for uniformity.
Jetpack_SSO::xmlrpc_methods() – Adds additional methods the WordPress xmlrpc API for handling SSO specific features
Jetpack_SSO::xmlrpc_user_disconnect() – Marks a user’s profile for disconnect from WordPress.com and forces a logout the next time the user visits the site.
Jetpack_XMLRPC_Server::disconnect_blog() – Disconnect this blog from the connected wordpress.com account
Jetpack_XMLRPC_Server::do_post_authorization() – Handles authorization actions after connecting a site, such as enabling modules.
Jetpack_XMLRPC_Server::features_available() – Returns what features are available. Uses the slug of the module files.
Jetpack_XMLRPC_Server::features_enabled() – Returns what features are enabled. Uses the slug of the modules files.
Jetpack_XMLRPC_Server::remote_connect() – Given an array containing a local user identifier and a nonce, will attempt to fetch and set an access token for the given user.
Jetpack_XMLRPC_Server::remote_provision() – This XML-RPC method is called from the /jpphp/provision endpoint on WPCOM in order to register this site so that a plan can be provisioned.
Jetpack_XMLRPC_Server::remote_register() – This XML-RPC method is called from the /jpphp/provision endpoint on WPCOM in order to register this site so that a plan can be provisioned.
Jetpack_XMLRPC_Server::validate_urls_for_idc_mitigation() – Returns the home URL and site URL for the current site which can be used on the WPCOM side for IDC mitigation to decide whether sync should be allowed if the home and siteurl values differ between WPCOM and the remote Jetpack site.
Jetpack_XMLRPC_Server::verify_registration() – Verifies that Jetpack.WordPress.com received a registration request from this site
Jetpack_XMLRPC_Server::xmlrpc_methods() – Whitelist of the XML-RPC methods available to the Jetpack Server. If the user is not authenticated (->login()) then the methods are never added, so they will get a "does not exist" error.
Jetpack::alternate_xmlrpc() – Since a lot of hosts use a hammer approach to "protecting" WordPress sites, and just blanket block all requests to /xmlrpc.php, or apply other overly-sensitive security/firewall policies, we provide our own alternate XML RPC API endpoint which is accessible via a different URI. Most of the below is copied directly from /xmlrpc.php so that we’re replicating it as closely as possible.
Jetpack::track_xmlrpc_error() – We can’t always respond to a signed XML-RPC request with a helpful error message. In some circumstances, doing so could leak information.
Jetpack::xmlrpc_methods() – In some setups, $HTTP_RAW_POST_DATA can be emptied during some IXR_Server paths since it is passed by reference to various methods.
Jetpack::xmlrpc_options() – Adds Jetpack-specific options to the output of the XMLRPC options method.
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