1 files changed, 99 insertions, 0 deletions
diff --git a/extlib/libomb/helper.php b/extlib/libomb/helper.php
new file mode 100644
index 000000000..a1f21f268
--- /dev/null
+++ b/extlib/libomb/helper.php
@@ -0,0 +1,99 @@
+<?php
+
+require_once 'Validate.php';
+
+/**
+ * Helper functions for libomb
+ *
+ * This file contains helper functions for libomb.
+ *
+ * PHP version 5
+ *
+ * LICENSE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package   OMB
+ * @author    Adrian Lang <mail@adrianlang.de>
+ * @copyright 2009 Adrian Lang
+ * @license   http://www.gnu.org/licenses/agpl.html GNU AGPL 3.0
+ **/
+
+class OMB_Helper {
+
+  /**
+   * Non-scalar constants
+   *
+   * The set of OMB and OAuth Services an OMB Server has to implement.
+   */
+
+  public static $OMB_SERVICES =
+    array(OMB_ENDPOINT_UPDATEPROFILE, OMB_ENDPOINT_POSTNOTICE);
+  public static $OAUTH_SERVICES =
+    array(OAUTH_ENDPOINT_REQUEST, OAUTH_ENDPOINT_AUTHORIZE, OAUTH_ENDPOINT_ACCESS);
+
+  /**
+   * Validate URL
+   *
+   * Basic URL validation. Currently http, https, ftp and gopher are supported
+   * schemes.
+   *
+   * @param string $url The URL which is to be validated.
+   *
+   * @return bool Whether URL is valid.
+   *
+   * @access public
+   */
+  public static function validateURL($url) {
+    return Validate::uri($url, array('allowed_schemes' => array('http', 'https',
+            'gopher', 'ftp')));
+  }
+
+  /**
+   * Validate Media type
+   *
+   * Basic Media type validation. Checks for valid maintype and correct format.
+   *
+   * @param string $mediatype The Media type which is to be validated.
+   *
+   * @return bool Whether media type is valid.
+   *
+   * @access public
+   */
+  public static function validateMediaType($mediatype) {
+    if (0 === preg_match('/^(\w+)\/([\w\d-+.]+)$/', $mediatype, $subtypes)) {
+      return false;
+    }
+    if (!in_array(strtolower($subtypes[1]), array('application', 'audio', 'image',
+              'message', 'model', 'multipart', 'text', 'video'))) {
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Remove escaping from request parameters
+   *
+   * Neutralise the evil effects of magic_quotes_gpc in the current request.
+   * This is used before handing a request off to OAuthRequest::from_request.
+   * Many thanks to Ciaran Gultnieks for this fix.
+   *
+   * @access public
+   */
+  public static function removeMagicQuotesFromRequest() {
+    if(get_magic_quotes_gpc() == 1) {
+      $_POST = array_map('stripslashes', $_POST);
+      $_GET = array_map('stripslashes', $_GET);
+    }
+  }
+}
+?>