git-svn-id: http://piwigo.org/svn/trunk@2357 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 202 insertions, 0 deletions

diff --git a/BSF/feed.php b/BSF/feed.php
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+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery                                  |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008      Piwigo Team                  http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | 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                                          |
+// |                                                                       |
+// | 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, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+
+define('PHPWG_ROOT_PATH','./');
+include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
+include_once(PHPWG_ROOT_PATH.'include/functions_notification.inc.php');
+
+// +-----------------------------------------------------------------------+
+// |                               functions                               |
+// +-----------------------------------------------------------------------+
+
+/**
+ * creates a Unix timestamp (number of seconds since 1970-01-01 00:00:00
+ * GMT) from a MySQL datetime format (2005-07-14 23:01:37)
+ *
+ * @param string mysql datetime format
+ * @return int timestamp
+ */
+function mysqldt_to_ts($mysqldt)
+{
+  $date = explode_mysqldt($mysqldt);
+  return mktime($date['hour'], $date['minute'], $date['second'],
+                $date['month'], $date['day'], $date['year']);
+}
+
+/**
+ * creates an ISO 8601 format date (2003-01-20T18:05:41+04:00) from Unix
+ * timestamp (number of seconds since 1970-01-01 00:00:00 GMT)
+ *
+ * function copied from Dotclear project http://dotclear.net
+ *
+ * @param int timestamp
+ * @return string ISO 8601 date format
+ */
+function ts_to_iso8601($ts)
+{
+  $tz = date('O',$ts);
+  $tz = substr($tz, 0, -2).':'.substr($tz, -2);
+  return date('Y-m-d\\TH:i:s',$ts).$tz;
+}
+
+// +-----------------------------------------------------------------------+
+// |                            initialization                             |
+// +-----------------------------------------------------------------------+
+
+$feed_id= isset($_GET['feed']) ? $_GET['feed'] : '';
+$image_only=isset($_GET['image_only']);
+
+// echo '<pre>'.generate_key(50).'</pre>';
+if ( !empty($feed_id) )
+{
+  $query = '
+SELECT user_id,
+       last_check
+  FROM '.USER_FEED_TABLE.'
+  WHERE id = \''.$feed_id.'\'
+;';
+  $feed_row = mysql_fetch_assoc(pwg_query($query));
+  if ( empty($feed_row) )
+  {
+    page_not_found('Unknown/missing feed identifier');
+  }
+  if ($feed_row['user_id']!=$user['id'])
+  { // new user
+    $user = build_user( $feed_row['user_id'], true );
+  }
+}
+else
+{
+  $image_only = true;
+  if (!is_a_guest())
+  {// auto session was created - so switch to guest
+    $user = build_user( $conf['guest_id'], true );
+  }
+}
+
+// Check the status now after the user has been loaded
+check_status(ACCESS_GUEST);
+
+list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();'));
+
+include_once(PHPWG_ROOT_PATH.'include/feedcreator.class.php');
+
+set_make_full_url();
+
+$rss = new UniversalFeedCreator();
+$rss->encoding=get_pwg_charset();
+$rss->title = $conf['gallery_title'];
+$rss->title.= ' (as '.$user['username'].')';
+
+$rss->link = $conf['gallery_url'];
+
+// +-----------------------------------------------------------------------+
+// |                            Feed creation                              |
+// +-----------------------------------------------------------------------+
+
+$news = array();
+if (!$image_only)
+{
+  $news = news($feed_row['last_check'], $dbnow, true, true);
+
+  if (count($news) > 0)
+  {
+    $item = new FeedItem();
+    $item->title = sprintf(l10n('New on %s'),
+        format_date($dbnow, 'mysql_datetime') );
+    $item->link = $conf['gallery_url'];
+
+    // content creation
+    $item->description = '<ul>';
+    foreach ($news as $line)
+    {
+      $item->description.= '<li>'.$line.'</li>';
+    }
+    $item->description.= '</ul>';
+    $item->descriptionHtmlSyndicated = true;
+
+    $item->date = mysqldt_to_ts($dbnow);
+    $item->author = 'Piwigo notifier';
+    $item->guid= sprintf('%s', $dbnow);;
+
+    $rss->addItem($item);
+
+    $query = '
+UPDATE '.USER_FEED_TABLE.'
+  SET last_check = \''.$dbnow.'\'
+  WHERE id = \''.$feed_id.'\'
+;';
+    pwg_query($query);
+  }
+}
+
+if ( !empty($feed_id) and empty($news) )
+{// update the last check from time to time to avoid deletion by maintenance tasks
+  if ( !isset($feed_row['last_check'])
+    or time()-mysqldt_to_ts($feed_row['last_check']) > 30*24*3600 )
+  {
+    $query = '
+UPDATE '.USER_FEED_TABLE.'
+  SET last_check = DATE_ADD(\''.$dbnow.'\', INTERVAL -15 DAY )
+  WHERE id = \''.$feed_id.'\'
+;';
+    pwg_query($query);
+  }
+}
+
+$dates = get_recent_post_dates_array($conf['recent_post_dates']['RSS']);
+
+foreach($dates as $date_detail)
+{ // for each recent post date we create a feed item
+  $item = new FeedItem();
+  $date = $date_detail['date_available'];
+  $item->title = get_title_recent_post_date($date_detail);
+  $item->link = make_index_url(
+        array(
+          'chronology_field' => 'posted',
+          'chronology_style'=> 'monthly',
+          'chronology_view' => 'calendar',
+          'chronology_date' => explode('-', substr($date,0,10) )
+        )
+      );
+
+  $item->description .=
+    '<a href="'.make_index_url().'">'.$conf['gallery_title'].'</a><br/> ';
+
+  $item->description .= get_html_description_recent_post_date($date_detail);
+
+  $item->descriptionHtmlSyndicated = true;
+
+  $item->date = mysqldt_to_ts($date);
+  $item->author = 'Piwigo notifier';
+  $item->guid= sprintf('%s', 'pics-'.$date);;
+
+  $rss->addItem($item);
+}
+
+$fileName= $conf['local_data_dir'].'/tmp';
+@mkdir($fileName); // just in case
+$fileName.='/feed.xml';
+// send XML feed
+echo $rss->saveFeed('RSS2.0', $fileName, true);
+?>
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