feat: add SiteURI class

.github/workflows/test-phpcpd.yml

@@ -55,4 +55,5 @@ jobs:
             --exclude system/Database/OCI8/Builder.php
             --exclude system/Database/Postgre/Builder.php
             --exclude system/Debug/Exceptions.php
+            --exclude system/HTTP/SiteURI.php
             -- app/ public/ system/

system/HTTP/SiteURI.php

@@ -0,0 +1,366 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\HTTP;
+
+use BadMethodCallException;
+use CodeIgniter\Exceptions\ConfigException;
+use CodeIgniter\HTTP\Exceptions\HTTPException;
+use Config\App;
+
+/**
+ * URI for the application site
+ */
+class SiteURI extends URI
+{
+    /**
+     * The current baseURL.
+     */
+    private URI $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.
+     */
+    private string $indexPage;
+
+    /**
+     * List of URI segments in baseURL and indexPage.
+     *
+     * If the URI is "http://localhost:8888/ci431/public/index.php/test?a=b",
+     * and the baseUR is "http://localhost:8888/ci431/public/", then:
+     *   $baseSegments = [
+     *       0 => 'ci431',
+     *       1 => 'public',
+     *       2 => 'index.php',
+     *   ];
+     */
+    private array $baseSegments;
+
+    /**
+     * List of URI segments after indexPage.
+     *
+     * The word "URI Segments" originally means only the URI path part relative
+     * to the baseURL.
+     *
+     * If the URI is "http://localhost:8888/ci431/public/index.php/test?a=b",
+     * and the baseUR is "http://localhost:8888/ci431/public/", then:
+     *   $segments = [
+     *       0 => 'test',
+     *   ];
+     *
+     * @var array
+     *
+     * @deprecated This property will be private.
+     */
+    protected $segments;
+
+    /**
+     * URI path relative to baseURL.
+     *
+     * If the baseURL contains sub folders, this value will be different from
+     * the current URI path.
+     *
+     * This value never starts with '/'.
+     */
+    private string $routePath;
+
+    /**
+     * @param string      $relativePath URI path relative to baseURL. May include
+     *                                  queries or fragments.
+     * @param string|null $host         Optional current hostname.
+     * @param string|null $scheme       Optional scheme. 'http' or 'https'.
+     * @phpstan-param 'http'|'https'|null $scheme
+     */
+    public function __construct(
+        App $configApp,
+        string $relativePath = '',
+        ?string $host = null,
+        ?string $scheme = null
+    ) {
+        $this->indexPage = $configApp->indexPage;
+
+        $this->baseURL = $this->determineBaseURL($configApp, $host, $scheme);
+
+        $this->setBasePath();
+
+        // Fix routePath, query, fragment
+        [$routePath, $query, $fragment] = $this->parseRelativePath($relativePath);
+
+        // Fix indexPage and routePath
+        $indexPageRoutePath = $this->getIndexPageRoutePath($routePath);
+
+        // Fix the current URI
+        $uri = $this->baseURL . $indexPageRoutePath;
+
+        // applyParts
+        $parts = parse_url($uri);
+        if ($parts === false) {
+            throw HTTPException::forUnableToParseURI($uri);
+        }
+        $parts['query']    = $query;
+        $parts['fragment'] = $fragment;
+        $this->applyParts($parts);
+
+        $this->setRoutePath($routePath);
+    }
+
+    private function parseRelativePath(string $relativePath): array
+    {
+        $parts = parse_url('http://dummy/' . $relativePath);
+        if ($parts === false) {
+            throw HTTPException::forUnableToParseURI($relativePath);
+        }
+
+        $routePath = $relativePath === '/' ? '/' : ltrim($parts['path'], '/');
+
+        $query    = $parts['query'] ?? '';
+        $fragment = $parts['fragment'] ?? '';
+
+        return [$routePath, $query, $fragment];
+    }
+
+    private function determineBaseURL(
+        App $configApp,
+        ?string $host,
+        ?string $scheme
+    ): URI {
+        $baseURL = $this->normalizeBaseURL($configApp);
+
+        $uri = new URI($baseURL);
+
+        // Update scheme
+        if ($scheme !== null) {
+            $uri->setScheme($scheme);
+        } elseif ($configApp->forceGlobalSecureRequests) {
+            $uri->setScheme('https');
+        }
+
+        // Update host
+        if ($host !== null) {
+            $uri->setHost($host);
+        }
+
+        return $uri;
+    }
+
+    private function getIndexPageRoutePath(string $routePath): string
+    {
+        // Remove starting slash unless it is `/`.
+        if ($routePath !== '' && $routePath[0] === '/' && $routePath !== '/') {
+            $routePath = ltrim($routePath, '/');
+        }
+
+        // Check for an index page
+        $indexPage = '';
+        if ($this->indexPage !== '') {
+            $indexPage = $this->indexPage;
+
+            // Check if we need a separator
+            if ($routePath !== '' && $routePath[0] !== '/' && $routePath[0] !== '?') {
+                $indexPage .= '/';
+            }
+        }
+
+        $indexPageRoutePath = $indexPage . $routePath;
+
+        if ($indexPageRoutePath === '/') {
+            $indexPageRoutePath = '';
+        }
+
+        return $indexPageRoutePath;
+    }
+
+    private function normalizeBaseURL(App $configApp): string
+    {
+        // It's possible the user forgot a trailing slash on their
+        // baseURL, so let's help them out.
+        $baseURL = rtrim($configApp->baseURL, '/ ') . '/';
+
+        // Validate baseURL
+        if (filter_var($baseURL, FILTER_VALIDATE_URL) === false) {
+            throw new ConfigException(
+                'Config\App::$baseURL is invalid.'
+            );
+        }
+
+        return $baseURL;
+    }
+
+    /**
+     * Sets basePathWithoutIndexPage and baseSegments.
+     */
+    private function setBasePath(): void
+    {
+        $this->basePathWithoutIndexPage = $this->baseURL->getPath();
+
+        $this->baseSegments = $this->convertToSegments($this->basePathWithoutIndexPage);
+
+        if ($this->indexPage) {
+            $this->baseSegments[] = $this->indexPage;
+        }
+    }
+
+    /**
+     * @deprecated
+     */
+    public function setBaseURL(string $baseURL): void
+    {
+        throw new BadMethodCallException('Cannot use this method.');
+    }
+
+    /**
+     * @deprecated
+     */
+    public function setURI(?string $uri = null)
+    {
+        throw new BadMethodCallException('Cannot use this method.');
+    }
+
+    /**
+     * Returns the baseURL.
+     *
+     * @interal
+     */
+    public function getBaseURL(): string
+    {
+        return (string) $this->baseURL;
+    }
+
+    /**
+     * Returns the URI path relative to baseURL.
+     *
+     * @return string The Route path.
+     */
+    public function getRoutePath(): string
+    {
+        return $this->routePath;
+    }
+
+    /**
+     * Formats the URI as a string.
+     */
+    public function __toString(): string
+    {
+        return static::createURIString(
+            $this->getScheme(),
+            $this->getAuthority(),
+            $this->getPath(),
+            $this->getQuery(),
+            $this->getFragment()
+        );
+    }
+
+    /**
+     * Sets the route path (and segments).
+     *
+     * @return $this
+     */
+    public function setPath(string $path)
+    {
+        $this->setRoutePath($path);
+
+        return $this;
+    }
+
+    /**
+     * Sets the route path (and segments).
+     */
+    private function setRoutePath(string $routePath): void
+    {
+        $routePath = $this->filterPath($routePath);
+
+        $indexPageRoutePath = $this->getIndexPageRoutePath($routePath);
+
+        $this->path = $this->basePathWithoutIndexPage . $indexPageRoutePath;
+
+        $this->routePath = ltrim($routePath, '/');
+
+        $this->segments = $this->convertToSegments($this->routePath);
+    }
+
+    /**
+     * Converts path to segments
+     */
+    private function convertToSegments(string $path): array
+    {
+        $tempPath = trim($path, '/');
+
+        return ($tempPath === '') ? [] : explode('/', $tempPath);
+    }
+
+    /**
+     * Sets the path portion of the URI based on segments.
+     *
+     * @return $this
+     *
+     * @deprecated This method will be private.
+     */
+    public function refreshPath()
+    {
+        $allSegments = array_merge($this->baseSegments, $this->segments);
+        $this->path  = '/' . $this->filterPath(implode('/', $allSegments));
+
+        if ($this->routePath === '/' && $this->path !== '/') {
+            $this->path .= '/';
+        }
+
+        $this->routePath = $this->filterPath(implode('/', $this->segments));
+
+        return $this;
+    }
+
+    /**
+     * Saves our parts from a parse_url() call.
+     */
+    protected function applyParts(array $parts)
+    {
+        if (! empty($parts['host'])) {
+            $this->host = $parts['host'];
+        }
+        if (! empty($parts['user'])) {
+            $this->user = $parts['user'];
+        }
+        if (isset($parts['path']) && $parts['path'] !== '') {
+            $this->path = $this->filterPath($parts['path']);
+        }
+        if (! empty($parts['query'])) {
+            $this->setQuery($parts['query']);
+        }
+        if (! empty($parts['fragment'])) {
+            $this->fragment = $parts['fragment'];
+        }
+
+        // Scheme
+        if (isset($parts['scheme'])) {
+            $this->setScheme(rtrim($parts['scheme'], ':/'));
+        } else {
+            $this->setScheme('http');
+        }
+
+        // Port
+        if (isset($parts['port']) && $parts['port'] !== null) {
+            // Valid port numbers are enforced by earlier parse_url() or setPort()
+            $this->port = $parts['port'];
+        }
+
+        if (isset($parts['pass'])) {
+            $this->password = $parts['pass'];
+        }
+    }
+}