hres and hres_json for responses

public/api/signup/mastodon/get_client.php

@@ -3,12 +3,8 @@
 
 $instance = resolve_instance($_GET['instance'] ?? '');
 if ($instance === false) {
-	http_response_code(400);
-	die(json_encode([
-		'status' => 'error',
-		'message' => lr('error.instance_not_exists',
-			'Instance does not exist or is incorrect.')
-	]));
+	hres_json(400, ERR, lr('error.instance_not_exists',
+		'Instance does not exist or is incorrect.'));
 }
 
 $app_name      = conf('app_name', 'RealFan');
@@ -33,12 +29,8 @@ curl_close($ch);
 # result must be JSON
 $result = @json_decode($result);
 if ($result === null) {
-	http_response_code(500);
-	die(json_encode([
-		'status' => 'error',
-		'message' => lr('error.instance_failed_or_not_mastodon',
-			'Instance failed to create an authorization App. Is it an instance?')
-	]));
+	hres_json(500, ERR, lr('error.instance_failed_or_not_mastodon',
+		'Instance failed to create an authorization App. Is it an instance?'));
 }
 
 # create the URL for OAUTH
@@ -48,7 +40,4 @@ $query_string = http_build_query([
 	'response_type'	=> 'code',
 	'scope'			=> $scopes
 ]);
-echo json_encode([
-	'status' => 'ok',
-	'message' => $instance.'/oauth/autorize?'.$query_string
-]);
+hres_json(200, OK, $instance.'/oauth/authorize?'.$query_string);

src/base.methods.php

@@ -1,5 +1,20 @@
 <?php
 
+# HTTP result => JSON
+function hres_json($code, $status, $message) {
+	header('Content-Type: application/json');
+	return hres(json_encode([
+		'status' => $status,
+		'message' => $message
+	]), $code);
+}
+
+# HTTP result
+function hres($message, $code=200) {
+	http_response_code($code);
+	die($message);
+}
+
 # Support instance aliases!
 function resolve_instance($txt) {
 	$txt = preg_replace('/^https?:\/\//', '', strtolower(trim($txt)));

src/base.php

@@ -1,5 +1,8 @@
 <?php
 
+define('OK',	'ok');
+define('ERR',	'err');
+
 $env = 'prod';
 if (getenv('ENV') !== false && in_array(getenv('ENV'), ['prod', 'dev']))
 	$env = getenv('ENV');