--- /dev/null
+<?php
+// Own namespace
+namespace CoreFramework\Request;
+
+// Import framework stuff
+use CoreFramework\Generic\FrameworkInterface;
+
+/**
+ * An interface for requests
+ *
+ * @author Roland Haeder <webmaster@shipsimu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2017 Core Developer Team
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.shipsimu.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/>.
+ */
+interface Requestable extends FrameworkInterface {
+ /**
+ * Prepares the request data for usage
+ *
+ * @return void
+ */
+ function prepareRequestData ();
+
+ /**
+ * Checks whether a request element is set
+ *
+ * @param $element Name of the request element we want to check
+ * @return $isSet Whether the request element is set
+ * @throws MissingArrayElementsException Thrown if a request element is not set
+ */
+ function isRequestElementSet ($element);
+
+ /**
+ * Getter for request element or 'null' if element was not found
+ *
+ * @param $element Name of the request element we want to check
+ * @return $value Value of the found request element or 'null' if the
+ * element was not found
+ */
+ function getRequestElement ($element);
+
+ /**
+ * Wrapper method for array_key() function for the request data array
+ *
+ * @return $array An array containing all array keys to return
+ */
+ function getParameterNames ();
+
+ /**
+ * Getter for a header element or 'null' if header was not found
+ *
+ * @param $headerName Name of the header
+ * @return $headerValue Value of the header or 'null' if not found
+ */
+ function getHeaderElement ($headerName);
+
+ /**
+ * Sets whether the request was valid (default: TRUE)
+ *
+ * @param $isValid Whether the request is valid
+ * @return void
+ */
+ function requestIsValid ($isValid = TRUE);
+
+ /**
+ * Reads a cookie and returns it's value or null if not found
+ *
+ * @param $cookieName Name of cookie we shall read
+ * @return $cookieValue Value of cookie or null if not found
+ */
+ function readCookie ($cookieName);
+
+ /**
+ * Checks if the request method is GET.
+ *
+ * @return $isGet Whether the request method is GET
+ */
+ function isGetRequestMethod ();
+
+ /**
+ * Checks if the request method is HEAD.
+ *
+ * @return $isHead Whether the request method is HEAD
+ */
+ function isHeadRequestMethod ();
+
+ /**
+ * Checks if the request method is POST.
+ *
+ * @return $isPost Whether the request method is POST
+ */
+ function isPostRequestMethod ();
+
+}