fix: host in baseURL may be wrong

Author: kenjis

system/HTTP/SiteURI.php

@@ -22,10 +22,18 @@
 class SiteURI extends URI
 {
     /**
-     * The baseURL.
+     * The current baseURL.
      */
     private string $baseURL;
 
+    /**
+     * The path part of baseURL.
+     *
+     * The baseURL "http://example.com/" → '/'
+     * The baseURL "http://localhost:8888/ci431/public/" → '/ci431/public/'
+     */
+    private string $basePathWithoutIndexPage;
+
     /**
      * The Index File.
      */
@@ -84,10 +92,10 @@ public function __construct(
         ?string $host = null,
         ?string $scheme = null
     ) {
-        $this->baseURL   = $this->normalizeBaseURL($configApp);
+        $baseURL         = $this->normalizeBaseURL($configApp);
         $this->indexPage = $configApp->indexPage;
 
-        $this->setBaseSegments();
+        $this->setBasePath($baseURL);
 
         // Check for an index page
         $indexPage = '';
@@ -102,7 +110,7 @@ public function __construct(
 
         $relativePath = URI::removeDotSegments($relativePath);
 
-        $tempUri = $this->baseURL . $indexPage . $relativePath;
+        $tempUri = $baseURL . $indexPage . $relativePath;
         $uri     = new URI($tempUri);
 
         // Update scheme
@@ -128,6 +136,13 @@ public function __construct(
         $parts     = explode('#', $parts[0]);
         $routePath = $parts[0];
         $this->setRoutePath($routePath);
+
+        // Set baseURL
+        $this->baseURL = URI::createURIString(
+            $this->getScheme(),
+            $this->getAuthority(),
+            $this->basePathWithoutIndexPage,
+        );
     }
 
     private function checkHost(string $host, array $allowedHostnames): bool
@@ -152,12 +167,13 @@ private function normalizeBaseURL(App $configApp): string
     }
 
     /**
-     * Sets baseSegments.
+     * Sets basePathWithoutIndexPage and baseSegments.
      */
-    private function setBaseSegments(): void
+    private function setBasePath(string $baseURL): void
     {
-        $basePath           = (new URI($this->baseURL))->getPath();
-        $this->baseSegments = $this->convertToSegments($basePath);
+        $this->basePathWithoutIndexPage = (new URI($baseURL))->getPath();
+
+        $this->baseSegments = $this->convertToSegments($this->basePathWithoutIndexPage);
 
         if ($this->indexPage) {
             $this->baseSegments[] = $this->indexPage;

tests/system/HTTP/SiteURITest.php

@@ -35,6 +35,7 @@ public function testConstructor()
         $this->assertInstanceOf(SiteURI::class, $uri);
         $this->assertSame('http://example.com/index.php/', (string) $uri);
         $this->assertSame('/index.php/', $uri->getPath());
+        $this->assertSame('http://example.com/', $uri->getBaseURL());
     }
 
     public function testConstructorRelativePath()
@@ -92,6 +93,7 @@ public function testConstructorHost()
         $this->assertInstanceOf(SiteURI::class, $uri);
         $this->assertSame('http://sub.example.com/index.php/', (string) $uri);
         $this->assertSame('/index.php/', $uri->getPath());
+        $this->assertSame('http://sub.example.com/', $uri->getBaseURL());
     }
 
     public function testConstructorScheme()
@@ -102,6 +104,7 @@ public function testConstructorScheme()
 
         $this->assertInstanceOf(SiteURI::class, $uri);
         $this->assertSame('https://example.com/index.php/', (string) $uri);
+        $this->assertSame('https://example.com/', $uri->getBaseURL());
     }
 
     public function testConstructorSubfolder()
@@ -114,6 +117,7 @@ public function testConstructorSubfolder()
         $this->assertInstanceOf(SiteURI::class, $uri);
         $this->assertSame('http://example.com/ci4/index.php/', (string) $uri);
         $this->assertSame('/ci4/index.php/', $uri->getPath());
+        $this->assertSame('http://example.com/ci4/', $uri->getBaseURL());
     }
 
     public function testConstructorSubfolderRelativePathWithQuery()
@@ -136,6 +140,7 @@ public function testConstructorForceGlobalSecureRequests()
         $uri = new SiteURI($config);
 
         $this->assertSame('https://example.com/index.php/', (string) $uri);
+        $this->assertSame('https://example.com/', $uri->getBaseURL());
     }
 
     public function testConstructorIndexPageEmpty()
@@ -146,6 +151,7 @@ public function testConstructorIndexPageEmpty()
         $uri = new SiteURI($config);
 
         $this->assertSame('http://example.com/', (string) $uri);
+        $this->assertSame('http://example.com/', $uri->getBaseURL());
     }
 
     public function testConstructorInvalidBaseURL()