Add support for custom passsword

Author: nfacha

endpoints/create-site.php

@@ -47,7 +47,11 @@
 
 			// Start creating stuff
 			try {
-				$user = $api->get_or_create_user_by_email($api->json->email, $api->json->site_name);
+				if(isset($api->json->password)){
+					$user = $api->get_or_create_user_by_email($api->json->email, $api->json->site_name, $api->json->password);
+				}else{
+					$user = $api->get_or_create_user_by_email($api->json->email, $api->json->site_name);
+				}
 			} catch(MultiSite_JSON_API\UserCreationError $e) {
 				$api->json_exception($e);
 				die();

includes/class-endpoint.php

@@ -151,7 +151,7 @@ public function full_path($sitename, $current_site = null) {
 	 * @param username string The username
 	 * @return user WP_User The Wordpress user object
 	 */
-	public function get_or_create_user_by_email($dirty_email, $username) {
+	public function get_or_create_user_by_email($dirty_email, $username, $password = null) {
 		$email = sanitize_email($dirty_email);
 		if($email === "")
 			throw new UserCreationError('Error creating user: email is invalid');
@@ -165,7 +165,9 @@ public function get_or_create_user_by_email($dirty_email, $username) {
 			return $user;
 		} else {
 			// Create a new user with a random password
-			$password = wp_generate_password(12, false);
+			if($password === null){
+				$password = wp_generate_password(12, false);
+			}
 			$user_id = wpmu_create_user($username, $password, $email);
 			wp_new_user_notification($user_id, $password);
 			// Its possible for the $user_id to be false here, but it seems to