add a workaround for make_self_url() when invoked off /api/ endpoint, add unit tests for this method

.vscode/tasks.json

@@ -6,7 +6,10 @@
 			"label": "phpstan (watcher)",
 			"isBackground": true,
 			"problemMatcher": {
-				"fileLocation": ["relative", "${workspaceRoot}"],
+				"fileLocation": [
+					"relative",
+					"${workspaceRoot}"
+				],
 				"owner": "phpstan-watcher",
 				"pattern": {
 					"regexp": "^/app/(.*?):([0-9\\?]*):(.*)$",
@@ -18,10 +21,15 @@
 					"activeOnStart": true,
 					"beginsPattern": "Using configuration file",
 					"endsPattern": "All done"
-
 				}
 			},
-			"command": "chmod +x ${workspaceRoot}/utils/phpstan-watcher.sh && ${workspaceRoot}/utils/phpstan-watcher.sh",
+			"command": "chmod +x ${workspaceRoot}/utils/phpstan-watcher.sh && ${workspaceRoot}/utils/phpstan-watcher.sh"
+		},
+		{
+			"type": "shell",
+			"label": "phpunit",
+			"command": "chmod +x ${workspaceRoot}/utils/phpunit.sh && ${workspaceRoot}/utils/phpunit.sh",
+			"problemMatcher": []
 		},
 		{
 			"type": "gulp",

classes/config.php

@@ -479,14 +479,14 @@ class Config {
 	/** 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
 	 * */
-	static function get_self_url() : string {
-		if (php_sapi_name() == "cli") {
+	static function get_self_url(bool $always_detect = false) : string {
+		if (!$always_detect && php_sapi_name() == "cli") {
 			return self::get(Config::SELF_URL_PATH);
 		} else {
 			$proto = self::is_server_https() ? 'https' : 'http';
 
 			$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);
+			$self_url_path = preg_replace("/(\/api\/{1,})?(\w+\.php)?(\?.*$)?$/", "", $self_url_path);
 
 			if (substr($self_url_path, -1) === "/") {
 				return substr($self_url_path, 0, -1);

tests/SelfUrlPathTest.php

@@ -0,0 +1,106 @@
+<?php
+use PHPUnit\Framework\TestCase;
+
+final class SelfUrlPathTest extends TestCase {
+	public function test_a(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_X_FORWARDED_PROTO"] = "http";
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/tt-rss/api/index.php";
+
+		$this->assertEquals(
+			'http://example.com/tt-rss',
+			Config::get_self_url(true)
+		);
+
+	}
+
+	public function test_b(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_X_FORWARDED_PROTO"] = "https";
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/api/";
+
+		$this->assertEquals(
+			'https://example.com',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_c(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_X_FORWARDED_PROTO"] = "https";
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/api/index.php";
+
+		$this->assertEquals(
+			'https://example.com',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_d(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_X_FORWARDED_PROTO"] = "https";
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/api//";
+
+		$this->assertEquals(
+			'https://example.com',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_e(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_X_FORWARDED_PROTO"] = "https";
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/";
+
+		$this->assertEquals(
+			'https://example.com',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_f(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/tt-rss/index.php";
+
+		$this->assertEquals(
+			'http://example.com/tt-rss',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_g(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/tt-rss/";
+
+		$this->assertEquals(
+			'http://example.com/tt-rss',
+			Config::get_self_url(true)
+		);
+	}
+
+	public function test_h(): void {
+		$_SERVER = [];
+
+		$_SERVER["HTTP_HOST"] = "example.com";
+		$_SERVER["REQUEST_URI"] = "/tt-rss";
+
+		$this->assertEquals(
+			'http://example.com/tt-rss',
+			Config::get_self_url(true)
+		);
+	}
+}

utils/phpunit.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+docker run --rm -v $(pwd):/app \
+	--workdir /app registry.fakecake.org/ci/php8.2-alpine:3.18 php82 -d memory_limit=-1 ./vendor/bin/phpunit
+
+