How to do WordPress Authentication?

2 comments

1. Yes, I was also confused. But there is a better explanation here:
   https://github.com/WP-API/api-console

   Basically you need to run few lines on the server (Step 1), so Key and Secret will be your client_key and client_secret. If you’ll finish what they say you can use them in the future.

   Unfortunately I do not have opportunity to try it by myself because I don’t have access to the server. Hope it helps!

2. Although this may not exactly answer the question, it might provide a lead. I used xmlrpc to communicate to register and login both of which yield a WP userid.
   Cordova code:

   function register($uname, $pw, $email, $first, $last){
        ActivityIndicator.show("Registering");
        $.xmlrpc({
           url: 'http://www.yourwebsite.com/xmlrpc.php',
           methodName: 'gm.wp_create_user',
           params: ["0", $uname, $pw, $email, $first, $last, "ID", "PW"],   
           success: function(response, status, jqXHR) { 
              ActivityIndicator.hide();
              var num = parseInt(response[0]);
              if (!num){
                 toast(response+', Please re-enter');
                 return;
              }
              $.jStorage.set("usernum",num);
              $.jStorage.set("username",$uname);
              $.jStorage.set("password",$pw);
              $("#new-user").popup("close");
              //alert('success:'+response+" "+status+" "+jqXHR); 
           },
           error: function(jqXHR, status, error) { 
              ActivityIndicator.hide();
              $.jStorage.set("usernum",undefined);
              $("#new-user").popup("close");
           }
        });
     }
   

   xmlrpc.php

       <?php
   /**
    * XML-RPC protocol support for WordPress
    *
    * @package WordPress
    */
   
   /**
    * Whether this is an XML-RPC Request
    *
    * @var bool
    */
   define('XMLRPC_REQUEST', true);
   
   // Some browser-embedded clients send cookies. We don't want them.
   $_COOKIE = array();
   
   // A bug in PHP < 5.2.2 makes $HTTP_RAW_POST_DATA not set by default,
   // but we can do it ourself.
   if ( !isset( $HTTP_RAW_POST_DATA ) ) {
       $HTTP_RAW_POST_DATA = file_get_contents( 'php://input' );
   }
   
   // fix for mozBlog and other cases where '<?xml' isn't on the very first line
   if ( isset($HTTP_RAW_POST_DATA) )
       $HTTP_RAW_POST_DATA = trim($HTTP_RAW_POST_DATA);
   
   /** Include the bootstrap for setting up WordPress environment */
   include('./wp-load.php');
   
   if ( isset( $_GET['rsd'] ) ) { // http://cyber.law.harvard.edu/blogs/gems/tech/rsd.html
   header('Content-Type: text/xml; charset=' . get_option('blog_charset'), true);
   ?>
   <?php echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>'; ?>
   <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd">
     <service>
       <engineName>WordPress</engineName>
       <engineLink>http://wordpress.org/</engineLink>
       <homePageLink><?php bloginfo_rss('url') ?></homePageLink>
       <apis>
         <api name="WordPress" blogID="1" preferred="true" apiLink="<?php echo site_url('xmlrpc.php', 'rpc') ?>" />
         <api name="Movable Type" blogID="1" preferred="false" apiLink="<?php echo site_url('xmlrpc.php', 'rpc') ?>" />
         <api name="MetaWeblog" blogID="1" preferred="false" apiLink="<?php echo site_url('xmlrpc.php', 'rpc') ?>" />
         <api name="Blogger" blogID="1" preferred="false" apiLink="<?php echo site_url('xmlrpc.php', 'rpc') ?>" />
         <?php
             do_action( 'xmlrpc_rsd_apis' );
         ?>
       </apis>
     </service>
   </rsd>
   <?php
   exit;
   }
   
   include_once(ABSPATH . 'wp-admin/includes/admin.php');
   include_once(ABSPATH . WPINC . '/class-IXR.php');
   include_once(ABSPATH . WPINC . '/class-wp-xmlrpc-server.php');
   
   /**
    * Posts submitted via the XML-RPC interface get that title
    * @name post_default_title
    * @var string
    */
   $post_default_title = "";
   
   /**
    * Filter the class used for handling XML-RPC requests.
        *
    * @since 3.1.0
    *
    * @param string $class The name of the XML-RPC server class.
    */
   $wp_xmlrpc_server_class = apply_filters( 'wp_xmlrpc_server_class', 'wp_xmlrpc_server' );
   $wp_xmlrpc_server = new $wp_xmlrpc_server_class;
   
   // Fire off the request
   $wp_xmlrpc_server->serve_request();
   
   exit;
   
   /**
    * logIO() - Writes logging info to a file.
    *
    * @deprecated 3.4.0
    * @deprecated Use error_log()
    *
    * @param string $io Whether input or output
    * @param string $msg Information describing logging reason.
    */
   function logIO( $io, $msg ) {
       _deprecated_function( __FUNCTION__, '3.4', 'error_log()' );
       if ( ! empty( $GLOBALS['xmlrpc_logging'] ) )
       error_log( $io . ' - ' . $msg );
   }
   

   and in functions.php on wordpress child theme:

       add_filter( 'xmlrpc_methods', 'xml_add_method');
   function xml_add_method( $methods ) {
       $methods['gm.wp_create_user'] = 'gm_wp_create_user';
       return $methods;
   }
   
   function gm_wp_create_user( $args ) {
       $uname = $args[1];
       $pword = $args[2];
       $email = $args[3];
   
       // Return Something
      $user_id = wp_create_user( $uname, $pword, $email ); 
   
      if( is_wp_error( $user_id ) ) {
       return $user_id->get_error_message();
       }
      else return $user_id;
      //return $blog_id.$username.$password.$uname.$pword.$email; 
   }
   

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