From 9826d2f07527e3259957628030adc87bde391b0c Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Mon, 23 Oct 2023 23:10:17 +0300
Subject: [PATCH] add a self url path hack to strip request path directories
 (needed for /api/index.php)

---
 api/index.php      | 2 ++
 classes/config.php | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/api/index.php b/api/index.php
index 750a95721..329e03dae 100644
--- a/api/index.php
+++ b/api/index.php
@@ -14,6 +14,8 @@
 	require_once "functions.php";
 	require_once "sessions.php";
 
+	Config::strip_self_url_path_dirs(1);
+
 	ini_set('session.use_cookies', "0");
 	ini_set("session.gc_maxlifetime", "86400");
 
diff --git a/classes/config.php b/classes/config.php
index 17c555fa9..77795de7a 100644
--- a/classes/config.php
+++ b/classes/config.php
@@ -268,6 +268,8 @@ class Config {
 	/** @var Db_Migrations|null $migrations */
 	private $migrations;
 
+	private static $self_url_path_strip_dirs = 0;
+
 	public static function get_instance() : Config {
 		if (self::$instance == null)
 			self::$instance = new self();
@@ -476,6 +478,10 @@ class Config {
 			(!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https');
 	}
 
+	static function strip_self_url_path_dirs($amount) {
+		self::$self_url_path_strip_dirs = $amount;
+	}
+
 	/** returns fully-qualified external URL to tt-rss (no trailing slash)
 	 * SELF_URL_PATH configuration variable is used as a fallback for the CLI SAPI
 	 * */
@@ -488,6 +494,9 @@ class Config {
 			$self_url_path = $proto . '://' . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
 			$self_url_path = preg_replace("/\w+\.php(\?.*$)?$/", "", $self_url_path);
 
+			for ($i = 0; $i < self::$self_url_path_strip_dirs; $i++)
+				$self_url_path = dirname($self_url_path);
+
 			if (substr($self_url_path, -1) === "/") {
 				return substr($self_url_path, 0, -1);
 			} else {