]> git.mxchange.org Git - shipsimu.git/blobdiff - inc/classes/main/response/http/class_HttpResponse.php
Fixes for image generation
[shipsimu.git] / inc / classes / main / response / http / class_HttpResponse.php
diff --git a/inc/classes/main/response/http/class_HttpResponse.php b/inc/classes/main/response/http/class_HttpResponse.php
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+<?php
+/**
+ * A class for an HTTP response on an HTTP request
+ *
+ * @author             Roland Haeder <webmaster@ship-simu.org>
+ * @version            0.0.0
+ * @copyright  Copyright (c) 2007, 2008 Roland Haeder, this is free software
+ * @license            GNU GPL 3.0 or any newer version
+ * @link               http://www.ship-simu.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * The extended headers are taken from phpMyAdmin setup tool, written by
+ * Michal Cihar <michal@cihar.com>, licensed under GNU GPL 2.0.
+ */
+class HttpResponse extends BaseResponse implements Responseable {
+       /**
+        * Protected constructor
+        *
+        * @return      void
+        */
+       protected function __construct () {
+               // Call parent constructor
+               parent::__construct(__CLASS__);
+       }
+
+       /**
+        * Creates an object of this class
+        *
+        * @param       $appInstance            An instance of a manageable application
+        * @return      $responseInstance       A prepared instance of this class
+        */
+       public final static function createHttpResponse (ManageableApplication $appInstance) {
+               // Get a new instance
+               $responseInstance = new HttpResponse();
+
+               // Set the application instance
+               $responseInstance->setApplicationInstance($appInstance);
+
+               // Initialize the template engine here
+               $responseInstance->initTemplateEngine($appInstance);
+
+               // Return the prepared instance
+               return $responseInstance;
+       }
+
+       /**
+        * Initializes the template engine instance
+        *
+        * @param       $appInstance    An instance of a manageable application
+        * @return      void
+        */
+       public final function initTemplateEngine (ManageableApplication $appInstance) {
+               $this->setTemplateInstance($this->prepareTemplateInstance($appInstance));
+       }
+
+       /**
+        * Adds a cookie to the response
+        *
+        * @param       $cookieName             Cookie's name
+        * @param       $cookieValue    Value to store in the cookie
+        * @param       $encrypted              Do some extra encryption on the value
+        * @param       $expires                Timestamp of expiration (default: configured)
+        * @return      void
+        * @throws      ResponseHeadersAlreadySentException             If headers are already sent
+        * @todo        Encryption of cookie data not yet supported.
+        * @todo        Why are these parameters conflicting?
+        * @todo        If the return statement is removed and setcookie() commented out,
+        * @todo        this will send only one cookie out, the first one.
+        */
+       public function addCookie ($cookieName, $cookieValue, $encrypted = false, $expires = null) {
+               //* DEBUG: */ echo $cookieName."=".$cookieValue."<br />\n";
+               // Are headers already sent?
+               if (headers_sent()) {
+                       // Throw an exception here
+                       //* DEBUG: */ return;
+                       throw new ResponseHeadersAlreadySentException($this, self::EXCEPTION_HEADERS_ALREADY_SENT);
+               } // END - if
+
+               // Shall we encrypt the cookie?
+               if ($encrypted === true) {
+               } // END - if
+
+               // For slow browsers set the cookie array element first
+               $_COOKIE[$cookieName] = $cookieValue;
+
+               // Get all config entries
+               if (is_null($expires)) {
+                       $expires = (time() + $this->getConfigInstance()->readConfig('cookie_expire'));
+               } // END - if
+
+               $path = $this->getConfigInstance()->readConfig('cookie_path');
+               $domain = $this->getConfigInstance()->readConfig('cookie_domain');
+
+               setcookie($cookieName, $cookieValue, $expires);
+               //, $path, $domain, (isset($_SERVER['HTTPS']))
+               return;
+
+               // Now construct the full header
+               $cookieString = $cookieName . "=" . $cookieValue . "; ";
+               $cookieString .= "expires=" . date("D, d-F-Y H:i:s", $expires) . " GMT";
+               // $cookieString .= "; path=".$path."; domain=".$domain;
+
+               // Set the cookie as a header
+               $this->cookies[$cookieName] = $cookieString;
+       }
+
+       /**
+        * Redirect to a configured URL. The URL can be absolute or relative. In
+        * case of relative URL it will be extended automatically.
+        *
+        * @param       $configEntry    The configuration entry which holds our URL
+        * @return      void
+        * @throws      ResponseHeadersAlreadySentException             If headers are already sent
+        */
+       public function redirectToConfiguredUrl ($configEntry) {
+               // Is the header not yet sent?
+               if (headers_sent()) {
+                       // Throw an exception here
+                       throw new ResponseHeadersAlreadySentException($this, self::EXCEPTION_HEADERS_ALREADY_SENT);
+               } // END - if
+
+               // Assign application data
+               $this->getTemplateInstance()->assignApplicationData($this->getApplicationInstance());
+
+               // Get the url from config
+               $url = $this->getConfigInstance()->readConfig($configEntry);
+
+               // Compile the URL
+               $url = $this->getTemplateInstance()->compileRawCode($url);
+
+               // Do we have a "http" in front of the URL?
+               if (substr(strtolower($url), 0, 4) != "http") {
+                       // Is there a / in front of the relative URL?
+                       if (substr($url, 0, 1) == "/") $url = substr($url, 1);
+
+                       // No, then extend it with our base URL
+                       $url = $this->getConfigInstance()->readConfig('base_url') . "/" . $url;
+               } // END - if
+
+               // Add redirect header
+               $this->addHeader("Location", $url);
+
+               // Set correct response status
+               $this->setResponseStatus("301 Moved Permanently");
+
+               // Clear the body
+               $this->setResponseBody("");
+
+               // Flush the result
+               $this->flushBuffer();
+
+               // All done here...
+               exit();
+       }
+
+       /**
+        * Expires the given cookie if it is set
+        *
+        * @param       $cookieName             Cookie to expire
+        * @return      void
+        */
+       public function expireCookie ($cookieName) {
+               // Is the cookie there?
+               if (isset($_COOKIE[$cookieName])) {
+                       // Then expire it with 20 minutes past
+                       $this->addCookie($cookieName, "", false, (time() - 1200));
+
+                       // Remove it from array
+                       unset($_COOKIE[$cookieName]);
+               } // END - if
+       }
+
+       /**
+        * Refreshs a given cookie. This will make the cookie live longer
+        *
+        * @param       $cookieName             Cookie to refresh
+        * @return      void
+        */
+       public function refreshCookie ($cookieName) {
+               // Only update existing cookies
+               if (isset($_COOKIE[$cookieName])) {
+                       // Update the cookie
+                       $this->addCookie($cookieName, $_COOKIE[$cookieName], false);
+               } // END - if
+       }
+
+       /**
+        * Getter for default command
+        *
+        * @return      $defaultCommand         Default command for this response
+        */
+       public function getDefaultCommand () {
+               $defaultCommand = $this->getConfigInstance()->readConfig('default_web_command');
+               return $defaultCommand;
+       }
+}
+
+// [EOF]
+?>