From 5e06b6865a488899dc997fbd3ee2d22e9c5569f4 Mon Sep 17 00:00:00 2001
From: Jon Langseth <jon.langseth@lilug.no>
Date: Tue, 17 Jan 2012 19:57:25 +0100
Subject: [PATCH] Implemented user/available test-node, added collision-detect
 to user/add_local and user/add_remote

---
 api/user.php      | 58 +++++++++++++++++++++++++++++++++++++++++++++++
 doc/api-nodes.txt | 11 ++++++---
 2 files changed, 66 insertions(+), 3 deletions(-)

diff --git a/api/user.php b/api/user.php
index 2830a3e..1014317 100644
--- a/api/user.php
+++ b/api/user.php
@@ -4,6 +4,7 @@ require_once('lib/user_functions.php');
 require_once('lib/common_functions.php');
 require_once('lib/db_functions.php');
 require_once('lib/phone_functions.php');
+require_once('lib/alias_functions.php');
 
 $config = get_config();
 
@@ -177,6 +178,12 @@ if ( !$config['sql_link'] )
 					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'User already exists as a Kamailio subscriber' ));
 					break;
 				}
+				if ( alias_exists ( $username, $domain ) )
+				{
+					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'Username exists as an alias' ));
+					break;
+				}
+
 				$kam_res = add_kamailio_subscriber( $username, $domain, $password, $email );
 				if ( !$kam_res )
 				{
@@ -299,6 +306,14 @@ if ( !$config['sql_link'] )
 					break;
 				}
 
+				// Should be impossible to hit this test, all aliases are required to be local.
+				if ( alias_exists ( $username, $domain ) )
+				{
+					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'Username exists as an alias' ));
+					break;
+				}
+
+
 				$pro_res = add_provision_user( $username, $password, $domain, $authid, $registrar, $r_port, $proxy, $p_port, $displayname, $dialplan, $linetext );
 				if ( !$pro_res )
 				{
@@ -599,6 +614,49 @@ if ( !$config['sql_link'] )
 			else 
 				print json_encode( array( 'response' => 'invalid', 'cause' => 'parameters' ) );
 			break;
+		case "/available":
+			if ( ( array_key_exists( 'username', $_GET) && array_key_exists( 'domain', $_GET ) ) 
+				|| array_key_exists('user', $_GET) )
+
+			{
+				$username = "";
+				$domain = "";
+				if ( array_key_exists('username', $_GET) )
+				{
+					$username = $_GET['username'];
+					$domain = $_GET['domain'];
+				}
+				else
+				{
+					$user = split_sipaddress($_GET['user']);
+					if ( !$user )
+					{
+						print json_encode ( array( 'response' => 'failed', 'cause' => 'invalid', 'detail' => 'Invalid SIP address') );
+						break;
+					}
+					list ( $username, $domain ) = $user;
+				}
+				if ( is_provision_user ( $username, $domain ) )
+				{
+					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'User already exists in provisioning configuration' ));
+					break;
+				}
+				if ( is_kamailio_subscriber ( $username, $domain ) )
+				{
+					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'User already exists as a Kamailio subscriber' ));
+					break;
+				}
+				if ( alias_exists ( $username, $domain ) )
+				{
+					print json_encode ( array( 'response' => 'failed', 'cause' => 'exists', 'detail' => 'Username exists as an alias' ));
+					break;
+				}
+				print json_encode( array ( 'response' => 'ok', 'cause' => 'nonexistant', 'detail' => '' . $username . '@' . $domain . ' does not exist.'));
+
+			}
+			else 
+				print json_encode( array( 'response' => 'invalid', 'cause' => 'parameters' ) );
+			break;
 		case "/gen_pw":
 			print generate_password();
 			break;
diff --git a/doc/api-nodes.txt b/doc/api-nodes.txt
index 7ea2100..a288bbd 100644
--- a/doc/api-nodes.txt
+++ b/doc/api-nodes.txt
@@ -85,6 +85,14 @@ user/remove?user=foo@bar.bz
 
 	Returns 'ok' on success.
 
+user/available?username=foo&domain=bar
+user/available?user=foo@bar.bz
+	Tests an address to see if it is available.
+
+	Returns 'ok' with 'cause' = 'nonexistant' if the address is available.
+
+	Returns 'failed' with 'cause' = 'exists' if the address is in use.
+
 user/gen_pw
 	Test-node, generates a random password on the same form as that used by
 	user/add_local. May be used with the to-be-implemented change_pw node.
@@ -222,9 +230,6 @@ TODO list:
 
 authentication-mechanism :)
 
-Add collision prevention for users, make sure that no user can be added when the user
-address would overlap/collide with a valid alias-address
-
 Change all GET to POST
 
 Implement test-tool for POST-based communication ;)
-- 
2.39.2