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| author | ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544> | 2008-04-15 17:55:54 +0000 |
|---|---|---|
| committer | ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544> | 2008-04-15 17:55:54 +0000 |
| commit | eb3656c011ebcbf733f21893865fd91a2ec8b6f1 (patch) | |
| tree | 7fd56871e56ddad7886c57f054cf80d054300ae6 /engine/lib/pagehandler.php | |
| parent | 495b7a95cf4cef8378882a2c55fd1156403e2bb7 (diff) | |
| download | elgg-eb3656c011ebcbf733f21893865fd91a2ec8b6f1.tar.gz elgg-eb3656c011ebcbf733f21893865fd91a2ec8b6f1.tar.bz2 | |
Natty page handling functions. See engine/lib/pagehandler.php
git-svn-id: https://code.elgg.org/elgg/trunk@470 36083f99-b078-4883-b0ff-0f9b5a30f544
Diffstat (limited to 'engine/lib/pagehandler.php')
| -rw-r--r-- | engine/lib/pagehandler.php | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/engine/lib/pagehandler.php b/engine/lib/pagehandler.php new file mode 100644 index 000000000..b5bb831db --- /dev/null +++ b/engine/lib/pagehandler.php @@ -0,0 +1,106 @@ +<?php
+
+ /**
+ * Elgg page handler functions
+ *
+ * @package Elgg
+ * @subpackage Core
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @author Curverider Ltd
+ * @copyright Curverider Ltd 2008
+ * @link http://elgg.org/
+ */
+
+ /**
+ * Turns the current page over to the page handler, allowing registered handlers to take over
+ *
+ * @param string $handler The name of the handler type (eg 'blog')
+ * @param array $page The parameters to the page, as an array (exploded by '/' slashes)
+ * @return true|false Depending on whether a registered page handler was found
+ */
+ function page_handler($handler, $page) {
+
+ global $CONFIG;
+
+ $page = explode('/',$page);
+ if (!isset($CONFIG->pagehandler) || empty($handler)) {
+ $result = false;
+ } else if (isset($CONFIG->pagehandler[$handler]) && is_callable($CONFIG->pagehandler[$handler])) {
+ $function = $CONFIG->pagehandler[$handler];
+ $result = $function($page, $handler);
+ if ($result !== false) {
+ $result = true;
+ }
+ } else {
+ $result = false;
+ }
+
+ if (!$result) {
+ $result = default_page_handler($page, $handler);
+ }
+ if ($result !== false) $result = true;
+
+ return $result;
+
+ }
+
+ /**
+ * Registers a page handler for a particular identifier
+ *
+ * eg, you can register a function called 'blog_page_handler' for handler type 'blog'
+ *
+ * Now for all URLs of type http://yoururl/blog/*, the blog_page_handler function will be called.
+ * The part of the URL marked with * above will be exploded on '/' characters and passed as an
+ * array to that function, eg:
+ *
+ * For the URL http://yoururl/blog/username/friends/:
+ * blog_page_handler('blog', array('username','friends'));
+ *
+ * @param string $handler The page type to handle
+ * @param string $function Your function name
+ * @return true|false Depending on success
+ */
+ function register_page_handler($handler, $function) {
+
+ global $CONFIG;
+ if (!isset($CONFIG->pagehandler))
+ $CONFIG->pagehandler = array();
+ if (is_callable($function)) {
+ $CONFIG->pagehandler[$handler] = $function;
+ return true;
+ }
+ return false;
+
+ }
+
+ /**
+ * A default page handler that attempts to load the actual file at a given page handler location
+ *
+ * @param array $page The page URL elements
+ * @param string $handler The base handler
+ * @return true|false Depending on success
+ */
+ function default_page_handler($page, $handler) {
+
+ global $CONFIG;
+ $page = implode('/',$page);
+ if (($questionmark = strripos($page, '?')))
+ $page = substr($page, 0, $questionmark);
+
+ $script = str_replace("..","",$script);
+ $callpath = $CONFIG->path . $handler . "/" . $page;
+ if (!include($callpath)) {
+ if (substr_count($callpath,'.php') == 0) {
+ if (substr($callpath,strlen($callpath) - 1, 1) != "/")
+ $callpath .= "/";
+ $callpath .= "index.php";
+ if (!include($callpath))
+ return false;
+ }
+ }
+
+ return true;
+
+ }
+
+?>
\ No newline at end of file |