# HG changeset patch
# User dan@fuhry
# Date 1181788455 14400
# Node ID cdf76b0e1aa1e747ba0c97512b3a27a03dafed4d

Initial repository population

diff -r 000000000000 -r cdf76b0e1aa1 plugins/SpecialRSS.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/SpecialRSS.php	Wed Jun 13 22:34:15 2007 -0400
@@ -0,0 +1,318 @@
+<?php
+/*
+Plugin Name: RSS Backend
+Plugin URI: http://enano.homelinux.org/Feed_me
+Description: Provides the page Special:RSS, which is used to generate RSS feeds of site and page content changes.
+Author: Dan Fuhry
+Version: 1.0
+Author URI: http://enano.homelinux.org/
+*/
+
+/*
+ * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+ * Version 1.0 release candidate 2
+ * Copyright (C) 2006-2007 Dan Fuhry
+ *
+ * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 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 details.
+ */
+ 
+global $db, $session, $paths, $template, $plugins; // Common objects
+
+$plugins->attachHook('base_classes_initted', '
+  $paths->add_page(Array(
+    \'name\'=>\'RSS Feed - Latest changes\',
+    \'urlname\'=>\'RSS\',
+    \'namespace\'=>\'Special\',
+    \'special\'=>0,\'visible\'=>0,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
+    ));
+  ');
+
+$plugins->attachHook('session_started', '__enanoRSSAttachHTMLHeaders();');
+
+function __enanoRSSAttachHTMLHeaders()
+{
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  $template->add_header('<link rel="alternate" title="'.getConfig('site_name').' Changes feed" href="'.makeUrlNS('Special', 'RSS/recent', null, true).'" type="application/rss+xml" />');
+  $template->add_header('<link rel="alternate" title="'.getConfig('site_name').' Comments feed" href="'.makeUrlNS('Special', 'RSS/comments', null, true).'" type="application/rss+xml" />');
+}
+
+define('ENANO_FEEDBURNER_INCLUDED', true);
+
+/**
+ * Class for easily generating RSS feeds.
+ * @package Enano
+ * @subpackage Feed Me
+ * @license GNU General Public License <http://www.gnu.org/licenses/gpl.html>
+ */
+ 
+class RSS
+{
+  
+  /**
+   * List of channels contained in this feed.
+   * @var array
+   */
+  
+  var $channels = Array();
+  
+  /**
+   * The channel that's currently being operated on
+   * @var array
+   */
+  
+  var $this_channel = Array();
+  
+  /**
+   * GUID of the current channel
+   * @var string
+   */
+  
+  var $this_guid = '';
+  
+  /**
+   * List of fully XML-formatted feed entries.
+   * @var array
+   */
+  
+  var $items = Array();
+  
+  /**
+   * Constructor.
+   * @param string Feed title
+   * @param string Feed description
+   * @param string Linkback
+   * @param string Generator
+   * @param string E-mail of webmaster
+   */
+  
+  function __construct($title = false, $desc = false, $link = false, $gen = false, $email = false)
+  {
+    $this->create_channel($title, $desc, $link, $gen, $email);
+  }
+  
+  /**
+   * PHP 4 constructor.
+   */
+  
+  function RSS($title = false, $desc = false, $link = false, $gen = false, $email = false)
+  {
+    $this->__construct($title, $desc, $link, $gen, $email);
+  }
+  
+  /** 
+   * Creates a new channel.
+   */
+  
+  function create_channel($title = false, $desc = false, $link = false, $gen = false, $email = false)
+  {
+    if ( empty($title) )
+      $title = 'Untitled feed';
+    else
+      $title = htmlspecialchars($title);
+    if ( empty($desc) )
+      $desc = 'Test feed';
+    else
+      $desc = htmlspecialchars($desc);
+    if ( empty($link) )
+      $link = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] . scriptPath . '/';
+    else
+      $link = htmlspecialchars($link);
+    if ( !empty($gen) )
+      $gen = htmlspecialchars($gen);
+    else
+      $gen = 'Enano CMS ' . enano_version();
+    if ( !empty($email) )
+      $email = htmlspecialchars($email);
+    else
+      $email = getConfig('contact_email');
+    
+    $this->channels = Array();
+    $guid = md5(microtime() . mt_rand());
+    $this->channels[$guid] = Array(
+        'title' => $title,
+        'link' => $link,
+        'gen' => $gen,
+        'email' => $email,
+        'lang' => 'en-us',
+        'items' => Array()
+      );
+    $this->this_channel =& $this->channels[$guid];
+    $this->this_guid = $guid;
+    return $guid;
+  }
+  
+  /**
+   * Selects a specific channel to add items to
+   * @param string The GUID of the channel
+   */
+  
+  function select_channel($guid)
+  {
+    if ( isset($this->channels[$guid]) )
+    {
+      $this->this_channel =& $this->channels[$guid];
+      $this->guid = $guid;
+    }
+  }
+  
+  /**
+   * Adds a news item.
+   * @param string Title of the feed entry
+   * @param string Link to where more information can be found
+   * @param string Short description or content area
+   * @param string Date the item was published. If this is a UNIX timestamp it will be formatted with date().
+   * @param string A Globally-Unique Identifier (GUID) for this item. Doesn't have to be a 128-bit hash - usually it's a link. If one is not provided, one is generated based on the first three parameters.
+   */
+  
+  function add_item($title, $link, $desc, $pubdate, $guid = false)
+  {
+    $title = htmlspecialchars($title);
+    $link = htmlspecialchars($link);
+    $desc = '<![CDATA[ ' . str_replace(']]>', ']]&gt;', $desc) . ']]>';
+    if ( is_int($pubdate) || ( !is_int($pub_date) && preg_match('/^([0-9]+)$/', $pubdate) ) )
+    {
+      $pubdate = date('D, d M Y H:i:s T', intval($pubdate));
+    }
+    if ( !$guid )
+    {
+      $guid = md5 ( $title . $link . $desc . $pubdate );
+      $sec1 = substr($guid, 0, 8);
+      $sec2 = substr($guid, 8, 4);
+      $sec3 = substr($guid, 12, 4);
+      $sec4 = substr($guid, 16, 4);
+      $sec5 = substr($guid, 20, 12);
+      $guid = sprintf('%s-%s-%s-%s-%s', $sec1, $sec2, $sec3, $sec4, $sec5);
+    }
+    $xml = "    <item>
+      <title>$title</title>
+      <link>$link</link>
+      <description>
+        $desc
+      </description>
+      <pubDate>$pubdate</pubDate>
+      <guid>$guid</guid>
+    </item>";
+    $this->this_channel['items'][] = $xml;
+  }
+  
+  /**
+   * Converts everything into the final RSS feed.
+   * @param bool If true, XML headers ("<?xml version="1.0" encoding="utf-8" ?>") are included. Defaults to true.
+   * @return string
+   */
+  
+  function render($headers = true)
+  {
+    $xml = '';
+    if ( $headers )
+      // The weird quotes are because of a jEdit syntax highlighting bug
+      $xml .= "<?xml version=".'"'."1.0".'"'." encoding=".'"'."utf-8".'"'." ?>\n";
+    $xml .= "<rss version=".'"'."2.0".'"'.">\n";
+    foreach ( $this->channels as $channel )
+    {
+      $xml .= "  <channel>
+    <title>{$channel['title']}</title>
+    <link>{$channel['link']}</link>
+    <description>{$channel['desc']}</description>
+    <generator>{$channel['gen']}</generator>
+    <webMaster>{$channel['email']}</webMaster>
+    <language>{$channel['lang']}</language>
+
+";
+      $content = implode("\n", $channel['items']) . "\n";
+      $xml .= $content;
+      $xml .= "  </channel>";
+      $xml .= "
+</rss>";
+    }
+    return $xml;
+  }
+  
+}
+
+// function names are IMPORTANT!!! The name pattern is: page_<namespace ID>_<page URLname, without namespace>
+
+function page_Special_RSS() {
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  header('Content-type: text/xml; charset=windows-1252'); //application/rss+xml');
+  $mode = $paths->getParam(0);
+  $n = $paths->getParam(1);
+  if(!preg_match('#^([0-9]+)$#', $n) || (int)$n > 50) $n = 20;
+  else $n = (int)$n;
+  switch($mode)
+  {
+    case "recent":
+    case false:
+      $title = getConfig('site_name') . ' Recent Changes';
+      $desc = getConfig('site_desc');
+      
+      $rss = new RSS($title, $desc);
+      
+      $q = $db->sql_query('SELECT * FROM '.table_prefix.'logs WHERE log_type=\'page\' ORDER BY time_id DESC LIMIT '.$n.';');
+      if(!$q)
+      {
+        $rss->add_item('ERROR', '', 'Error selecting log data: ' . mysql_error() . '', time());
+      }
+      else
+      {
+        while($row = $db->fetchrow())
+        {
+          $link = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] . makeUrlNS($row['namespace'], $row['page_id']);
+          $title = $paths->pages[$paths->nslist[$row['namespace']].$row['page_id']]['name'];
+          $desc = ( $row['edit_summary'] != '' ) ? $row['edit_summary'] : 'No edit summary given.';
+          $date = $row['time_id'];
+          $guid = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] . makeUrlNS($row['namespace'], $row['page_id']).'?oldid='.$row['time_id'];
+          
+          $rss->add_item($title, $link, $desc, $date, $guid);
+        }
+      }
+      
+      echo $rss->render();
+      break;
+    case "comments":
+      $title = getConfig('site_name') . ' Latest Comments';
+      $desc = getConfig('site_desc');
+      
+      $rss = new RSS($title, $desc);
+      
+      $q = $db->sql_query('SELECT * FROM '.table_prefix.'comments ORDER BY time DESC LIMIT '.$n.';');
+        
+      if(!$q)
+      {
+        $rss->add_item('ERROR', '', 'Error selecting log data: ' . mysql_error() . '', time());
+      }
+      else
+      {
+        $n = $db->numrows();
+        //echo '<!-- Number of rows: '.$n.' -->'; // ."\n<!-- SQL backtrace: \n\n".$db->sql_backtrace().' -->';
+        for ( $j = 0; $j < $n; $j++ )
+        {
+          $row = $db->fetchrow($q);
+          if(!is_array($row)) die(__FILE__.':'.__LINE__.' $row is not an array');
+          $link = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] . makeUrlNS($row['namespace'], $row['page_id']).'#comments';
+          $page = ( isset($paths->pages[$paths->nslist[$row['namespace']].$row['page_id']]) ) ? $paths->pages[$paths->nslist[$row['namespace']].$row['page_id']]['name'] : $paths->nslist[$row['namespace']].$row['page_id'];
+          $title = $row['subject'] . ': Posted on page "'.$page.'" by user '.$row['name'];
+          $desc = RenderMan::render($row['comment_data']);
+          $date = $row['time'];
+          $guid = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] . makeUrlNS($row['namespace'], $row['page_id']).'?do=comments&amp;comment='.$row['time'];
+          
+          $rss->add_item($title, $link, $desc, $date, $guid);
+        }
+      }
+      echo $rss->render();
+      break;
+    default:
+      $code = $plugins->setHook('feed_me_request');
+      foreach ( $code as $cmd )
+      {
+        eval($cmd);
+      }
+      break;
+  }
+}
+
+?>
\ No newline at end of file