diff --git a/sources/plugins/ynh-login-mapping/README b/sources/plugins/ynh-login-mapping/README
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@@ -0,0 +1 @@
+Plugin which allows you to get username from ynh ldap by email address
diff --git a/sources/plugins/ynh-login-mapping/VERSION b/sources/plugins/ynh-login-mapping/VERSION
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+0.1
diff --git a/sources/plugins/ynh-login-mapping/index.php b/sources/plugins/ynh-login-mapping/index.php
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+<?php
+class YnhLoginMappingPlugin extends \RainLoop\Plugins\AbstractPlugin {
+	public function Init() {
+		// $this->addHook('filter.login-credentials.step-1', 'FilterLoginСredentials1');
+		// $this->addHook('filter.login-credentials.step-2', 'FilterLoginСredentials2');
+		$this->addHook ( 'filter.login-credentials', 'FilterLoginСredentials' );
+	}
+	
+	/* // ca ne semble pas marcher...
+	 * public function FilterLoginCredentials1(&$sEmail, &$sPassword) {
+	 * $this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin::FilterLoginСredentials_S1:');
+	 * }
+	 */
+	
+	/* // ca non plus...
+	 * public function FilterLoginCredentials2(&$sEmail, &$sPassword) {
+	 * $this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin::FilterLoginСredentials_S2:');
+	 * }
+	 */
+	
+	/**
+	 *
+	 * @param string $sEmail        	
+	 * @param string $sLogin        	
+	 * @param string $sPassword        	
+	 *
+	 * @throws \RainLoop\Exceptions\ClientException
+	 */
+	public function FilterLoginСredentials(&$sEmail, &$sLogin, &$sPassword) {
+		$this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin::FilterLoginСredentials IN => '.$sEmail.'/'.$sLogin, \MailSo\Log\Enumerations\Type::INFO);
+		
+		// connection au ldap ynh... en local
+		$cnx = ldap_connect (); // single connection
+		
+		if (! $cnx) {
+			$this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin: Could not connect to LDAP server', \MailSo\Log\Enumerations\Type::ERROR );
+			return;
+		}
+		
+		if (! ldap_bind ( $cnx )) {
+			// bizard... ca renvoie false.... mais ca marche....
+			// $this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin: Could not bind to LDAP server', \MailSo\Log\Enumerations\Type::ERROR);
+			// return;
+		}
+		
+		$dn = "dc=yunohost,dc=org";
+		
+		// on veut mail et uid... pour un mail donné
+		$filter = "(&(objectClass=inetOrgPerson)(mail=$sEmail))";
+		$justthese = array ( 'uid', 'mail' );
+		
+		// OK un petit recherche
+		$sr = ldap_search ( $cnx, $dn, $filter, $justthese ); 
+		if (!$sr) {
+			$this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin: search on LDAP server', \MailSo\Log\Enumerations\Type::ERROR );
+			return;
+		}
+		$result = ldap_get_entries ( $cnx, $sr );
+
+		// OK si on a un resultat on recupere l'identifiant de l'utilisateur...
+		if (($result['count'] > 0) && ($result[0]['uid']['count'] > 0)) {
+			$sLogin = $result[0]['uid'][0];
+		} else {
+			$this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin: user not found', \MailSo\Log\Enumerations\Type::ERROR );
+		}
+		
+		$this->Manager()->Actions()->Logger()->Write('LdapLoginMappingPlugin::FilterLoginСredentials OUT => '. $sEmail.'/'.$sLogin, \MailSo\Log\Enumerations\Type::INFO );
+	}
+	
+	/*
+	 * // pas encore de configuration...
+	 * public function configMapping()
+	 * {
+	 * return array(
+	 * \RainLoop\Plugins\Property::NewInstance('mapping')->SetLabel('Mapping')
+	 * ->SetType(\RainLoop\Enumerations\PluginPropertyType::STRING_TEXT)
+	 * ->SetDescription('email:login mapping')
+	 * ->SetDefaultValue("user@domain.com:user.bob\nadmin@domain.com:user.john2")
+	 * );
+	 * }
+	 */
+}