HTTP Phase 1

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 - `CodeIgniter\Database\ModelFactory` is now deprecated in favor of `CodeIgniter\Config\Factories::models()`
 - `CodeIgniter\Config\Config` is now deprecated in favor of `CodeIgniter\Config\Factories::config()`
+- HTTP Layer Refactor: Numerous deprecations have been made towards a transition to a PSR-compliant HTTP layer. [See the User Guide](user_guide_src/source/installation/upgrade_405.rst)
 
 ## [v4.0.4](https://github.com/codeigniter4/CodeIgniter4/tree/v4.0.4) (2020-07-15)
 

phpstan.neon.dist

@@ -31,12 +31,10 @@ parameters:
 		- '#Access to an undefined property CodeIgniter\\Database\\Forge::\$dropConstraintStr#'
 		- '#Access to an undefined property CodeIgniter\\Database\\BaseConnection::\$mysqli|\$schema#'
 		- '#Access to an undefined property CodeIgniter\\Database\\ConnectionInterface::(\$DBDriver|\$connID|\$likeEscapeStr|\$likeEscapeChar|\$escapeChar|\$protectIdentifiers|\$schema)#'
-		- '#Access to an undefined property CodeIgniter\\HTTP\\Request::\$uri#'
 		- '#Access to protected property CodeIgniter\\Database\\BaseConnection::(\$DBDebug|\$DBPrefix|\$swapPre|\$charset|\$DBCollat|\$database)#'
 		- '#Call to an undefined method CodeIgniter\\Database\\BaseConnection::_(disable|enable)ForeignKeyChecks\(\)#'
 		- '#Call to an undefined method CodeIgniter\\Database\\BaseConnection::supportsForeignKeys\(\)#'
 		- '#Call to an undefined method CodeIgniter\\Database\\ConnectionInterface::(tableExists|protectIdentifiers|setAliasedTables|escapeIdentifiers|affectedRows|addTableAlias|getIndexData)\(\)#'
-		- '#Call to an undefined method CodeIgniter\\HTTP\\Request::(getPath|getSegments|getMethod|setLocale|getPost)\(\)#'
 		- '#Call to an undefined method CodeIgniter\\Router\\RouteCollectionInterface::(getDefaultNamespace|isFiltered|getFilterForRoute|getRoutesOptions)\(\)#'
 		- '#Cannot access property [\$a-z_]+ on ((bool\|)?object\|resource)#'
 		- '#Cannot call method [a-zA-Z_]+\(\) on ((bool\|)?object\|resource)#'

system/CLI/CLI.php

@@ -869,7 +869,7 @@ public static function wrap(string $string = null, int $max = 0, int $padLeft =
 	 */
 	protected static function parseCommandLine()
 	{
-		$args = $_SERVER['argv'];
+		$args = $_SERVER['argv'] ?? [];
 		array_shift($args); // scrap invoking program
 		$optionValue = false;
 

system/CodeIgniter.php

@@ -62,7 +62,7 @@ class CodeIgniter
 	/**
 	 * Main application configuration
 	 *
-	 * @var \Config\App
+	 * @var App
 	 */
 	protected $config;
 
@@ -76,7 +76,7 @@ class CodeIgniter
 	/**
 	 * Current request.
 	 *
-	 * @var HTTP\Request|HTTP\IncomingRequest|CLIRequest
+	 * @var Request|HTTP\IncomingRequest|CLIRequest
 	 */
 	protected $request;
 
@@ -395,7 +395,7 @@ protected function handleRequest(RouteCollectionInterface $routes = null, Cache
 			$filters->enableFilter($routeFilter, 'after');
 		}
 
-		$uri = $this->request instanceof CLIRequest ? $this->request->getPath() : $this->request->uri->getPath();
+		$uri = $this->request instanceof CLIRequest ? $this->request->getPath() : $this->request->getUri()->getPath();
 
 		// Never run filters when running through Spark cli
 		if (! defined('SPARKED'))
@@ -714,9 +714,7 @@ public function cachePage(Cache $config)
 			$headers[$header->getName()] = $header->getValueLine();
 		}
 
-		return cache()->save(
-						$this->generateCacheName($config), serialize(['headers' => $headers, 'output' => $this->output]), static::$cacheTTL
-		);
+		return cache()->save($this->generateCacheName($config), serialize(['headers' => $headers, 'output' => $this->output]), static::$cacheTTL);
 	}
 
 	//--------------------------------------------------------------------
@@ -745,24 +743,20 @@ public function getPerformanceStats(): array
 	 */
 	protected function generateCacheName(Cache $config): string
 	{
-		if (get_class($this->request) === CLIRequest::class)
+		if ($this->request instanceof CLIRequest)
 		{
 			return md5($this->request->getPath());
 		}
 
-		$uri = $this->request->uri;
+		$uri = $this->request->getUri();
 
 		if ($config->cacheQueryString)
 		{
-			$name = URI::createURIString(
-							$uri->getScheme(), $uri->getAuthority(), $uri->getPath(), $uri->getQuery()
-			);
+			$name = URI::createURIString($uri->getScheme(), $uri->getAuthority(), $uri->getPath(), $uri->getQuery());
 		}
 		else
 		{
-			$name = URI::createURIString(
-							$uri->getScheme(), $uri->getAuthority(), $uri->getPath()
-			);
+			$name = URI::createURIString($uri->getScheme(), $uri->getAuthority(), $uri->getPath());
 		}
 
 		return md5($name);
@@ -821,7 +815,7 @@ protected function tryToRouteIt(RouteCollectionInterface $routes = null)
 		// then we need to set the correct locale on our Request.
 		if ($this->router->hasLocale())
 		{
-			$this->request->setLocale($this->router->getLocale());
+			$this->request->setLocale($this->router->getLocale()); // @phpstan-ignore-line
 		}
 
 		$this->benchmark->stop('routing');
@@ -926,7 +920,7 @@ protected function createController()
 	protected function runController($class)
 	{
 		// If this is a console request then use the input segments as parameters
-		$params = defined('SPARKED') ? $this->request->getSegments() : $this->router->params();
+		$params = defined('SPARKED') ? $this->request->getSegments() : $this->router->params(); // @phpstan-ignore-line
 
 		if (method_exists($class, '_remap'))
 		{
@@ -1107,7 +1101,7 @@ public function spoofRequestMethod()
 			return;
 		}
 
-		$method = $this->request->getPost('_method');
+		$method = $this->request->getPost('_method'); // @phpstan-ignore-line
 
 		if (empty($method))
 		{

system/HTTP/DownloadResponse.php

@@ -20,7 +20,7 @@
 /**
  * HTTP response when a download is requested.
  */
-class DownloadResponse extends Message implements ResponseInterface
+class DownloadResponse extends Response
 {
 	/**
 	 * Download file name
@@ -51,25 +51,25 @@ class DownloadResponse extends Message implements ResponseInterface
 	private $binary;
 
 	/**
-	 * Download reason
+	 * Download charset
 	 *
 	 * @var string
 	 */
-	private $reason = 'OK';
+	private $charset = 'UTF-8';
 
 	/**
-	 * Download charset
+	 * Download reason
 	 *
 	 * @var string
 	 */
-	private $charset = 'UTF-8';
+	protected $reason = 'OK';
 
 	/**
-	 * pretend
+	 * The current status code for this response.
 	 *
-	 * @var boolean
+	 * @var integer
 	 */
-	private $pretend = false;
+	protected $statusCode = 200;
 
 	/**
 	 * Constructor.
@@ -79,8 +79,13 @@ class DownloadResponse extends Message implements ResponseInterface
 	 */
 	public function __construct(string $filename, bool $setMime)
 	{
+		parent::__construct(config('App'));
+
 		$this->filename = $filename;
 		$this->setMime  = $setMime;
+
+		// Make sure the content type is either specified or detected
+		$this->removeHeader('Content-Type');
 	}
 
 	/**
@@ -227,29 +232,13 @@ private function getContentDisposition() : string
 		return $result;
 	}
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getStatusCode(): int
-	{
-		return 200;
-	}
-
 	//--------------------------------------------------------------------
 
 	/**
-	 * Return an instance with the specified status code and, optionally, reason phrase.
+	 * Disallows status changing.
 	 *
-	 * If no reason phrase is specified, will default recommended reason phrase for
-	 * the response's status code.
-	 *
-	 * @see http://tools.ietf.org/html/rfc7231#section-6
-	 * @see http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
-	 *
-	 * @param integer $code   The 3-digit integer result code to set.
-	 * @param string  $reason The reason phrase to use with the
-	 *                        provided status code; if none is provided, will
-	 *                        default to the IANA name.
+	 * @param integer $code
+	 * @param string  $reason
 	 *
 	 * @throws DownloadException
 	 */
@@ -260,42 +249,6 @@ public function setStatusCode(int $code, string $reason = '')
 
 	//--------------------------------------------------------------------
 
-	/**
-	 * Gets the response response phrase associated with the status code.
-	 *
-	 * @see http://tools.ietf.org/html/rfc7231#section-6
-	 * @see http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
-	 *
-	 * @return string
-	 */
-	public function getReason(): string
-	{
-		return $this->reason;
-	}
-
-	//--------------------------------------------------------------------
-	//--------------------------------------------------------------------
-	// Convenience Methods
-	//--------------------------------------------------------------------
-
-	/**
-	 * Sets the date header
-	 *
-	 * @param DateTime $date
-	 *
-	 * @return ResponseInterface
-	 */
-	public function setDate(DateTime $date)
-	{
-		$date->setTimezone(new DateTimeZone('UTC'));
-
-		$this->setHeader('Date', $date->format('D, d M Y H:i:s') . ' GMT');
-
-		return $this;
-	}
-
-	//--------------------------------------------------------------------
-
 	/**
 	 * Sets the Content Type header for this response with the mime type
 	 * and, optionally, the charset.
@@ -307,15 +260,9 @@ public function setDate(DateTime $date)
 	 */
 	public function setContentType(string $mime, string $charset = 'UTF-8')
 	{
-		// add charset attribute if not already there and provided as parm
-		if ((strpos($mime, 'charset=') < 1) && ! empty($charset))
-		{
-			$mime .= '; charset=' . $charset;
-		}
+		parent::setContentType($mime, $charset);
 
-		$this->removeHeader('Content-Type'); // replace existing content type
-		$this->setHeader('Content-Type', $mime);
-		if (! empty($charset))
+		if ($charset !== '')
 		{
 			$this->charset = $charset;
 		}
@@ -339,28 +286,7 @@ public function noCache(): self
 	//--------------------------------------------------------------------
 
 	/**
-	 * A shortcut method that allows the developer to set all of the
-	 * cache-control headers in one method call.
-	 *
-	 * The options array is used to provide the cache-control directives
-	 * for the header. It might look something like:
-	 *
-	 *      $options = [
-	 *          'max-age'  => 300,
-	 *          's-maxage' => 900
-	 *          'etag'     => 'abcde',
-	 *      ];
-	 *
-	 * Typical options are:
-	 *  - etag
-	 *  - last-modified
-	 *  - max-age
-	 *  - s-maxage
-	 *  - private
-	 *  - public
-	 *  - must-revalidate
-	 *  - proxy-revalidate
-	 *  - no-transform
+	 * Disables cache configuration.
 	 *
 	 * @param array $options
 	 *
@@ -371,46 +297,14 @@ public function setCache(array $options = [])
 		throw DownloadException::forCannotSetCache();
 	}
 
-	//--------------------------------------------------------------------
-
-	/**
-	 * {@inheritDoc}
-	 */
-	public function setLastModified($date)
-	{
-		if ($date instanceof DateTime)
-		{
-			$date->setTimezone(new DateTimeZone('UTC'));
-			$this->setHeader('Last-Modified', $date->format('D, d M Y H:i:s') . ' GMT');
-		}
-		elseif (is_string($date))
-		{
-			$this->setHeader('Last-Modified', $date);
-		}
-
-		return $this;
-	}
-
-	//--------------------------------------------------------------------
 	//--------------------------------------------------------------------
 	// Output Methods
 	//--------------------------------------------------------------------
 
-	/**
-	 * For unit testing, don't actually send headers.
-	 *
-	 * @param  boolean $pretend
-	 * @return $this
-	 */
-	public function pretend(bool $pretend = true)
-	{
-		$this->pretend = $pretend;
-
-		return $this;
-	}
-
 	/**
 	 * {@inheritDoc}
+	 *
+	 * @todo Do downloads need CSP or Cookies? Compare with ResponseTrait::send()
 	 */
 	public function send()
 	{
@@ -438,39 +332,6 @@ public function buildHeaders()
 		$this->noCache();
 	}
 
-	/**
-	 * Sends the headers of this HTTP request to the browser.
-	 *
-	 * @return DownloadResponse
-	 */
-	public function sendHeaders()
-	{
-		// Have the headers already been sent?
-		if ($this->pretend || headers_sent())
-		{
-			return $this;
-		}
-
-		// Per spec, MUST be sent with each request, if possible.
-		// http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html
-		if (! isset($this->headers['Date']))
-		{
-			$this->setDate(DateTime::createFromFormat('U', (string) time()));
-		}
-
-		// HTTP Status
-		header(sprintf('HTTP/%s %s %s', $this->getProtocolVersion(), $this->getStatusCode(), $this->getReason()), true,
-				$this->getStatusCode());
-
-		// Send all of our headers
-		foreach ($this->getHeaders() as $name => $values)
-		{
-			header($name . ': ' . $this->getHeaderLine($name), false, $this->getStatusCode());
-		}
-
-		return $this;
-	}
-
 	/**
 	 * output download file text.
 	 *