aggregator.module 49.2 KB
Newer Older
1
<?php
Dries's avatar
 
Dries committed
2
/* $Id$ */
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4 5 6
/**
 * Implementation of hook_help().
 */
Dries's avatar
 
Dries committed
7
function aggregator_help($section) {
Dries's avatar
 
Dries committed
8
  switch ($section) {
Kjartan's avatar
Kjartan committed
9
    case 'admin/help#aggregator':
Dries's avatar
 
Dries committed
10 11
      return t('
      <p>Thousands of web sites, especially news sites and weblogs, syndicate their most recent site content for others to display. The syndicated content always includes titles, also known as headlines, for the newest published stories. Each headline acts as a direct link to the stories on the remote site. Along with the headline, most sites typically provide either the first few paragraphs of the story or a short summary. Many individuals use client-based news aggregators on their personal computer to aggregate content, such as <a href="http://www.disobey.com/amphetadesk/">Amphetadesk</a>.</p>
Dries's avatar
 
Dries committed
12 13
      <p>Drupal also has a news aggregator built in as a standard feature. With it, you can subscribe to feeds from other sites and display their content for your site users. Simply enable the aggregator module in site administration and enter the feeds that you choose.</p>
      <h3>What do I need to subscribe to a feed?</h3>
Dries's avatar
 
Dries committed
14 15 16 17 18 19
      <p>The standard method of syndication is using the XML-based <a href="http://blogs.law.harvard.edu/tech/rss">Rich Site Summary</a> (RSS). To syndicate a site\'s content, obtain the full URL of the RSS page providing syndication. Common file tags for RSS pages are .rss, .xml and .rdf. Example: <a href="http://slashdot.org/slashdot.rdf">Slashdot RSS</a>.</p>
      <p>Most weblog sites that offer syndication will have an obvious link on the main page. Often you need only look for a XML syndication button, such as the one Drupal uses for site syndication.</p>
      <p>But some sites do not make their RSS feeds as easy to find. Or maybe you want to find a number of feeds on a given topic, without extensively searching the web. In that case, try an RSS syndication directory such as <a href="http://www.syndic8.com/">Syndic8</a>.</p>
      <p>To learn much more about RSS, read Mark Pilgrim\'s <a href="http://www.xml.com/pub/a/2002/12/18/dive-into-xml.html">What is RSS</a> and WebReference.com\'s <a href="http://www.webreference.com/authoring/languages/xml/rss/1/">The Evolution of RSS</a>.</p>
      <p>NOTE: Enable your site\'s XML syndication button by turning on the Syndicate block in block management.</p>
      <h3>Adding news feeds</h3>
Dries's avatar
 
Dries committed
20 21
      <p>To subscribe to an RSS feed on another site, use the <a href="%admin-news">aggregation page</a>.</p>
      <p>Once there, click the <a href="%new-feed">new feed</a> tab.  Drupal will then ask for the following:</p>
Dries's avatar
 
Dries committed
22
      <ul>
Dries's avatar
 
Dries committed
23 24 25 26
       <li><strong>Title</strong> -- The text entered here will be used in your news aggregator, within the administration configuration section, and as title for the news feed block. As a general rule, use the web site name from which the feed originates.</li>
       <li><strong>URL</strong> -- Here you\'ll enter the fully-qualified URL for the feed for the site you want to subscribe to.</li>
       <li><strong>Update interval</strong> -- The update interval is how often Drupal will automatically access the RSS URL for the site for fresh content. The 1 hour default is typically the minimum you will want to use. Accessing another site\'s RSS page more frequently can be considered impolite. After all, it does require the other site\'s server handle your requests. To use this feature cron.php must be called regularly, otherwise, you\'ll have to manually update feeds one at a time within the news aggregation administration section by using <a href="%update-items">update items</a>.</li>
       <li><strong>Latest items block</strong> -- The number of items selected here will determine how many of the latest items from the feed will appear in a block which may be enabled and placed in the <a href="%block">blocks</a> administration page.</li>
27
       <li><strong>Automatically file items</strong> -- As items are received from a feed they will be put in the checked categories.</li>
Dries's avatar
 
Dries committed
28
      </ul>
Dries's avatar
 
Dries committed
29
      <p>Once you submit your new feed, check to see if it is working properly. Select <a href="%update-items">update items</a> on the <a href="%admin-news">aggregation page</a>. If you do not see any items listed for that feed, edit the feed and make sure that the URL was entered correctly.</p>
Dries's avatar
 
Dries committed
30
      <h3>Adding categories</h3>
Dries's avatar
 
Dries committed
31
      <p>News items can be filed into categories. To create a category, start at the <a href="%admin-news">aggregation page</a>.</p>
Dries's avatar
 
Dries committed
32
      <p>Once there, select <a href="%new-category">new category</a> from the menu. Drupal will then ask for the following:</p>
Dries's avatar
 
Dries committed
33
      <ul>
Dries's avatar
 
Dries committed
34 35 36
       <li><strong>Title</strong> -- The title will be used in the <i>news by topics</i> listing in your news aggregator and with the customized block created for the bundle.</li>
       <li><strong>Description</strong> -- A short description of the category to tell users more details about what they might find filed in the category.</li>
       <li><strong>Latest items block</strong> -- The number of items selected here will determine how many of the latest items from the category will appear in a block which may be enabled and placed in the <a href="%block">blocks</a> administration page.</li>
Dries's avatar
 
Dries committed
37 38 39 40
      </ul>
      <h3>Using the news aggregator</h3>
      <p>The news aggregator has a number of ways that it displays your subscribed content:</p>
      <ul>
Dries's avatar
 
Dries committed
41 42 43
       <li><strong><a href="%news-aggregator">News aggregator</a></strong> (latest news) -- Displays all incoming content in the order received.</li>
       <li><strong><a href="%sources">Sources</a></strong> -- Organizes incoming content by feed, displaying feed titles which link to a page of the latest items from the feed and item titles which link to the originating post.</li>
       <li><strong><a href="%categories">Categories</a></strong> -- Organizes incoming content by category, displaying category titles which link to a page of the latest items from the category and item titles which link to the originating post.</li>
Dries's avatar
 
Dries committed
44
      </ul>
Dries's avatar
 
Dries committed
45 46 47 48 49 50 51
      <p>Pages which show the latest items in either a source, category, or of all items contain the following information for each item:
      <ul>
       <li>The title of the original post.</li>
       <li>The categories which the item is filed in, which are links to view the category page with items from that category only.</li>
       <li>A description, the first few paragraphs or summary of the originating post (if any).</li>
       <li>The name of the source, which acts as a link to an individual feed page, listing information about that feed and incoming content for that feed only. This is not shown on feed pages.</li>
      </ul>
52
      <p>Additionally, users with the administer news feeds permission will see a link to categorize the news items. Clicking this will add a right hand column to select the categories which each news item is in.</p>
Dries's avatar
 
Dries committed
53
      <h3>Technical details</h3>
Dries's avatar
 
Dries committed
54
      <p>Drupal automatically generates an OPML feed file that is available by selecting the XML icon on the News Sources page.</p>
Dries's avatar
 
Dries committed
55
      <p>When fetching feeds Drupal supports conditional GETs, this reduces the bandwidth usage for feeds that have not been updated since the last check.</p>
Dries's avatar
 
Dries committed
56 57
      <p>If a feed is permanently moved to a new location Drupal will automatically update the feed URL to the new address.</p>', array('%block' => url('admin/block'), '%admin-news' => url('admin/aggregator'), '%new-feed' => url('admin/aggregator/add/feed'), '%new-category' => url('admin/aggregator/add/category'), '%update-items' => url('admin/aggregator'), '%news-aggregator' => url('aggregator'), '%sources' => url('aggregator/sources'), '%categories' => url('aggregator/categories')));
    case 'admin/modules#description':
Dries's avatar
 
Dries committed
58
      return t('Used to aggregate syndicated content (RSS and RDF).');
Dries's avatar
 
Dries committed
59
    case 'admin/aggregator':
60
      return t('Several web sites, especially news related sites, syndicate parts of their site\'s content for other web sites to display. Usually, the syndicated content includes the latest headlines with a direct link to that story on the remote site. Some syndicated content also includes a description of the headline. The standard method of syndication is using the XML based Rich Site Summary (RSS) or Resource Description Framework (RDF).  To get a feed to work you <strong>must</strong> have <a href=\"%cron\">cron</a> working. To display the feed or category in a block you must decide how many items to show by editing the feed or block and turn on the <a href="%block">feed\'s block</a>.', array('%block' => url('admin/block'), '%cron' => url('admin/help', NULL, 'cron')));
Dries's avatar
 
Dries committed
61
    case 'admin/aggregator/add/feed':
Dries's avatar
 
Dries committed
62
      return t('Add a site that has an RSS/RDF feed. The URL is the full path to the RSS feed file. For the feed to update automatically you must run "cron.php". If you already have a feed with the URL you are planning to use, the system will not accept another feed with the same URL.');
Dries's avatar
 
Dries committed
63
    case 'admin/aggregator/add/category':
64
      return t('Categories provide a generalized way of creating composite news pages or blocks. They allow you, for example, to combine various sport-related items into one category called <i>Sports</i>. News items can be added to a category automatically by setting a feed to automatically place items in a category or by using the categorize items link in any listing of news items.');
65 66
    case 'admin/aggregator/configure':
      return t('These settings control the display of aggregated content.');
Dries's avatar
 
Dries committed
67
  }
68 69
}

Dries's avatar
 
Dries committed
70
/**
Dries's avatar
Dries committed
71
 * Menu callback; displays the aggregator-specific information from admin/help.
Dries's avatar
 
Dries committed
72
 */
Kjartan's avatar
Kjartan committed
73
function aggregator_help_page() {
Dries's avatar
 
Dries committed
74
  print theme('page', aggregator_help('admin/help#aggregator'));
Dries's avatar
 
Dries committed
75 76
}

Dries's avatar
 
Dries committed
77 78 79 80 81
function aggregator_configure() {
  if ($_POST) {
    system_settings_save();
  }

Dries's avatar
 
Dries committed
82
  $output = '';
Dries's avatar
 
Dries committed
83
  $number = drupal_map_assoc(array(5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100));
Dries's avatar
 
Dries committed
84
  $items = array(0 => t('none'), 3 => t('3 items'), 5 => t('5 items'), 10 => t('10 items'), 15 => t('15 items'), 20 => t('20 items'), 25 => t('25 items'));
Dries's avatar
 
Dries committed
85

Dries's avatar
 
Dries committed
86 87
  $output .= form_select(t('Items shown in sources and categories pages'), 'aggregator_summary_items', variable_get('aggregator_summary_items', 3), $items, t('The number of items which will be shown with each feed or category in the feed and category summary pages.'));
  $output .= form_radios(t('Category selection type'), 'aggregator_category_selector', variable_get('aggregator_category_selector', 'check'), array('check' => t('checkboxes'), 'select' => t('multiple selector')), t('The type of category selection widget which is shown on categorization pages. Checkboxes are easier to use; a multiple selector is good for working with large numbers of categories.'));
Dries's avatar
 
Dries committed
88

Dries's avatar
 
Dries committed
89
  print theme('page', system_settings_form($output));
Dries's avatar
 
Dries committed
90 91
}

Dries's avatar
 
Dries committed
92 93 94
/**
 * Implementation of hook_perm().
 */
Kjartan's avatar
Kjartan committed
95
function aggregator_perm() {
Dries's avatar
 
Dries committed
96
  return array('administer news feeds', 'access news feeds');
Dries's avatar
 
Dries committed
97 98
}

Dries's avatar
 
Dries committed
99 100 101
/**
 * Implementation of hook_link().
 */
Kjartan's avatar
Kjartan committed
102
function aggregator_link($type) {
Dries's avatar
 
Dries committed
103 104 105
  if ($type == 'page' && user_access('access news feeds')) {
    return array(l(t('news feeds'), 'aggregator', array('title' => t('Read the latest news from syndicated web sites.'))));
  }
Dries's avatar
 
Dries committed
106
}
Dries's avatar
 
Dries committed
107

Dries's avatar
 
Dries committed
108 109 110 111 112
/**
 * Implementation of hook_menu().
 */
function aggregator_menu() {
  $items = array();
Dries's avatar
 
Dries committed
113

Dries's avatar
 
Dries committed
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
  $edit = user_access('administer news feeds');
  $view = user_access('access news feeds');

  $items[] = array('path' => 'admin/aggregator', 'title' => t('aggregator'),
    'callback' => 'aggregator_admin_overview', 'access' => $edit);
  $items[] = array('path' => 'admin/aggregator/edit/feed', 'title' => t('edit feed'),
    'callback' => 'aggregator_admin_edit_feed', 'access' => $edit,
    'type' => MENU_CALLBACK);
  $items[] = array('path' => 'admin/aggregator/edit/category', 'title' => t('edit category'),
    'callback' => 'aggregator_admin_edit_category', 'access' => $edit,
    'type' => MENU_CALLBACK);
  $items[] = array('path' => 'admin/aggregator/remove', 'title' => t('remove items'),
    'callback' => 'aggregator_admin_remove_feed', 'access' => $edit,
    'type' => MENU_CALLBACK);
  $items[] = array('path' => 'admin/aggregator/update', 'title' => t('update items'),
    'callback' => 'aggregator_admin_refresh_feed', 'access' => $edit,
    'type' => MENU_CALLBACK);

Dries's avatar
 
Dries committed
132 133
  $items[] = array('path' => 'admin/aggregator/list', 'title' => t('list'),
    'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
Dries's avatar
 
Dries committed
134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
  $items[] = array('path' => 'admin/aggregator/add/feed', 'title' => t('add feed'),
    'callback' => 'aggregator_admin_edit_feed', 'access' => $edit,
    'type' => MENU_LOCAL_TASK);
  $items[] = array('path' => 'admin/aggregator/add/category', 'title' => t('add category'),
    'callback' => 'aggregator_admin_edit_category', 'access' => $edit,
    'type' => MENU_LOCAL_TASK);
  $items[] = array('path' => 'admin/aggregator/configure', 'title' => t('configure'),
    'callback' => 'aggregator_configure', 'access' => $edit,
    'type' => MENU_LOCAL_TASK);

  $items[] = array('path' => 'aggregator', 'title' => t('news aggregator'),
    'callback' => 'aggregator_page_last', 'access' => $view,
    'weight' => 5);
  $items[] = array('path' => 'aggregator/sources', 'title' => t('sources'),
    'callback' => 'aggregator_page_sources', 'access' => $view);
  $items[] = array('path' => 'aggregator/categories', 'title' => t('categories'),
    'callback' => 'aggregator_page_categories', 'access' => $view,
    'type' => MENU_ITEM_GROUPING);

  // To reduce the number of SQL queries, we don't query the database when
  // not on an aggregator page.
  // If caching of the menu is implemented, this check should be removed
  // so that DHTML menu presentation can be used correctly.
  if (arg(0) == 'aggregator') {
    // Sources:
    $result = db_query('SELECT title, fid FROM {aggregator_feed} ORDER BY title');
    while ($feed = db_fetch_object($result)) {
      $items[] = array('path' => 'aggregator/sources/'. $feed->fid, 'title' => $feed->title,
        'callback' => 'aggregator_page_source', 'access' => $view);
Dries's avatar
 
Dries committed
163 164
      $items[] = array('path' => 'aggregator/sources/'. $feed->fid .'/view', 'title' => t('view'),
        'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
Dries's avatar
 
Dries committed
165 166 167 168 169 170 171
      $items[] = array('path' => 'aggregator/sources/'. $feed->fid .'/categorize', 'title' => t('categorize'),
        'callback' => 'aggregator_page_source', 'access' => $edit,
        'type' => MENU_LOCAL_TASK);
      $items[] = array('path' => 'aggregator/sources/'. $feed->fid .'/configure', 'title' => t('configure'),
        'callback' => 'aggregator_edit', 'access' => $edit,
        'type' => MENU_LOCAL_TASK,
        'weight' => 1);
Dries's avatar
 
Dries committed
172
    }
173

Dries's avatar
 
Dries committed
174 175 176 177 178
    // Categories:
    $result = db_query('SELECT title, cid FROM {aggregator_category} ORDER BY title');
    while ($category = db_fetch_object($result)) {
      $items[] = array('path' => 'aggregator/categories/'. $category->cid, 'title' => $category->title,
        'callback' => 'aggregator_page_category', 'access' => $view);
Dries's avatar
 
Dries committed
179 180
      $items[] = array('path' => 'aggregator/categories/'. $category->cid .'/view', 'title' => t('view'),
        'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
Dries's avatar
 
Dries committed
181 182 183 184 185 186 187 188
      $items[] = array('path' => 'aggregator/categories/'. $category->cid .'/categorize', 'title' => t('categorize'),
        'callback' => 'aggregator_page_category', 'access' => $edit,
        'type' => MENU_LOCAL_TASK);
      $items[] = array('path' => 'aggregator/categories/'. $category->cid .'/configure', 'title' => t('configure'),
        'callback' => 'aggregator_edit', 'access' => $edit,
        'type' => MENU_LOCAL_TASK,
        'weight' => 1);
    }
189
  }
Dries's avatar
 
Dries committed
190 191 192 193 194 195

  $items[] = array('path' => 'aggregator/opml', 'title' => t('opml'),
    'callback' => 'aggregator_page_opml', 'access' => $view,
    'type' => MENU_CALLBACK);

  return $items;
196 197
}

Dries's avatar
 
Dries committed
198 199 200 201 202
/**
 * Implementation of hook_cron().
 *
 * Checks news feeds for updates once their refresh interval has elapsed.
 */
Dries's avatar
 
Dries committed
203
function aggregator_cron() {
Dries's avatar
 
Dries committed
204
  $result = db_query('SELECT * FROM {aggregator_feed} WHERE checked + refresh < %d', time());
Dries's avatar
 
Dries committed
205 206
  while ($feed = db_fetch_array($result)) {
    aggregator_refresh($feed);
Dries's avatar
 
Dries committed
207 208 209
  }
}

Dries's avatar
 
Dries committed
210 211 212 213 214
/**
 * Implementation of hook_block().
 *
 * Generates blocks for the latest news items in each category and feed.
 */
Kjartan's avatar
Kjartan committed
215
function aggregator_block($op, $delta) {
Dries's avatar
 
Dries committed
216
  if (user_access('access news feeds')) {
Dries's avatar
 
Dries committed
217 218 219 220
    if ($op == 'list') {
      $result = db_query('SELECT cid, title FROM {aggregator_category} WHERE block != 0 ORDER BY title');
      while ($category = db_fetch_object($result)) {
        $block['category:'. $category->cid]['info'] = t('%title category latest items', array('%title' => $category->title));
Kjartan's avatar
Kjartan committed
221
      }
Dries's avatar
 
Dries committed
222
      $result = db_query('SELECT fid, title FROM {aggregator_feed} WHERE block != 0 ORDER BY fid');
Kjartan's avatar
Kjartan committed
223
      while ($feed = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
224
        $block['feed:'. $feed->fid]['info'] = t('%title feed latest items', array('%title' => $feed->title));
Kjartan's avatar
Kjartan committed
225
      }
Dries's avatar
 
Dries committed
226
    }
Kjartan's avatar
Kjartan committed
227
    else {
Dries's avatar
 
Dries committed
228
      list($type, $id) = split(':', $delta);
Kjartan's avatar
Kjartan committed
229
      switch ($type) {
Dries's avatar
 
Dries committed
230 231 232 233 234
        case 'feed':
          $feed = db_fetch_object(db_query('SELECT fid, title, block FROM {aggregator_feed} WHERE fid = %d', $id));
          $block['subject'] = $feed->title;
          $result = db_query_range('SELECT * FROM {aggregator_item} WHERE fid = %d ORDER BY timestamp DESC, iid DESC', $feed->fid, 0, $feed->block);
          $block['content'] = '<div class="more-link">'. l(t('more'), 'aggregator/sources/'. $feed->fid, array('title' => t('View this feed\'s recent news.'))) .'</div>';
Kjartan's avatar
Kjartan committed
235
          break;
Dries's avatar
 
Dries committed
236 237 238 239 240
        case 'category':
          $category = db_fetch_object(db_query('SELECT cid, title, block FROM {aggregator_category} WHERE cid = %d', $id));
          $block['subject'] = $category->title;
          $result = db_query_range('SELECT i.* FROM {aggregator_category_item} ci LEFT JOIN {aggregator_item} i ON ci.iid = i.iid WHERE ci.cid = %d ORDER BY i.timestamp DESC, i.iid DESC', $category->cid, 0, $category->block);
          $block['content'] = '<div class="more-link">'. l(t('more'), 'aggregator/categories/'. $category->cid, array('title' => t('View this category\'s recent news.'))) .'</div>';
Kjartan's avatar
Kjartan committed
241 242
          break;
      }
Dries's avatar
 
Dries committed
243 244
      $items = array();
      while ($item = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
245
        $items[] = theme('aggregator_block_item', $item);
Dries's avatar
 
Dries committed
246
      }
Dries's avatar
 
Dries committed
247
      $block['content'] = theme('item_list', $items) . $block['content'];
Dries's avatar
 
Dries committed
248
    }
Dries's avatar
 
Dries committed
249
    return $block;
Dries's avatar
 
Dries committed
250
  }
Dries's avatar
 
Dries committed
251 252
}

Dries's avatar
 
Dries committed
253 254 255 256
function aggregator_remove($feed) {
  $result = db_query('SELECT iid FROM {aggregator_item} WHERE fid = %d', $feed['fid']);
  while ($item = db_fetch_object($result)) {
    $items[] = "iid = $item->iid";
Dries's avatar
 
Dries committed
257
  }
Dries's avatar
 
Dries committed
258 259
  if ($items) {
    db_query('DELETE FROM {aggregator_category_item} WHERE '. implode(' OR ', $items));
Dries's avatar
 
Dries committed
260
  }
Dries's avatar
 
Dries committed
261
  db_query('DELETE FROM {aggregator_item} WHERE fid = %d', $feed['fid']);
Kjartan's avatar
Kjartan committed
262
  db_query("UPDATE {aggregator_feed} SET checked = 0, etag = '', modified = 0 WHERE fid = %d", $feed['fid']);
Dries's avatar
 
Dries committed
263
  drupal_set_message(t('removed news items from \'%site\'.', array('%site' => $feed['title'])));
Dries's avatar
 
Dries committed
264 265
}

Dries's avatar
 
Dries committed
266 267 268
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
269
function aggregator_element_start($parser, $name, $attributes) {
Dries's avatar
 
Dries committed
270 271 272
  global $item, $element, $tag;

  switch ($name) {
Dries's avatar
 
Dries committed
273 274
    case 'IMAGE':
    case 'TEXTINPUT':
Dries's avatar
 
Dries committed
275 276
      $element = $name;
      break;
Dries's avatar
 
Dries committed
277
    case 'ITEM':
Dries's avatar
 
Dries committed
278 279
      $element = $name;
      $item += 1;
280 281 282 283 284
  }

  $tag = $name;
}

Dries's avatar
 
Dries committed
285 286 287
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
288
function aggregator_element_end($parser, $name) {
Dries's avatar
 
Dries committed
289 290
  global $element;

Dries's avatar
 
Dries committed
291
  switch ($name) {
Dries's avatar
 
Dries committed
292 293 294 295
    case 'IMAGE':
    case 'TEXTINPUT':
    case 'ITEM':
      $element = '';
Dries's avatar
 
Dries committed
296
  }
297 298
}

Dries's avatar
 
Dries committed
299 300 301
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
302
function aggregator_element_data($parser, $data) {
Dries's avatar
 
Dries committed
303
  global $channel, $element, $items, $item, $image, $tag;
Dries's avatar
 
Dries committed
304 305

  switch ($element) {
Dries's avatar
 
Dries committed
306
    case 'ITEM':
Dries's avatar
 
Dries committed
307 308
      $items[$item][$tag] .= $data;
      break;
Dries's avatar
 
Dries committed
309
    case 'IMAGE':
Dries's avatar
 
Dries committed
310 311
      $image[$tag] .= $data;
      break;
Dries's avatar
 
Dries committed
312 313 314
    case 'TEXTINPUT':
      // The sub-element is not supported. However, we must recognize
      // it or its contents will end up in the item array.
Dries's avatar
 
Dries committed
315 316 317
      break;
    default:
      $channel[$tag] .= $data;
318 319 320
  }
}

Dries's avatar
 
Dries committed
321 322 323
/**
 * Checks a news feed for new items.
 */
Kjartan's avatar
Kjartan committed
324
function aggregator_refresh($feed) {
Dries's avatar
 
Dries committed
325 326
  global $channel, $image;

Dries's avatar
 
Dries committed
327 328 329 330 331 332
  // Generate conditional GET headers.
  $headers = array();
  if ($feed['etag']) {
    $headers['If-None-Match'] = $feed['etag'];
  }
  if ($feed['modified']) {
Dries's avatar
 
Dries committed
333
    $headers['If-Modified-Since'] = gmdate('D, d M Y H:i:s', $feed['modified']) .' GMT';
Dries's avatar
 
Dries committed
334 335 336 337 338
  }

  // Request feed.
  $result = drupal_http_request($feed['url'], $headers);

339
  // Process HTTP response code.
Dries's avatar
 
Dries committed
340 341
  switch ($result->code) {
    case 304:
Dries's avatar
 
Dries committed
342 343
      db_query('UPDATE {aggregator_feed} SET checked = %d WHERE fid = %d', time(), $feed['fid']);
      drupal_set_message(t('no new syndicated content from "%site".', array('%site' => $feed['title'])));
Dries's avatar
 
Dries committed
344
      break;
Dries's avatar
 
Dries committed
345 346
    case 301:
      $feed['url'] = $result->redirect_url;
347
      watchdog('special', t('aggregator: updated URL for feed "%title" to %url', array('%title' => $feed[title], '%url' => $feed[url])));
Dries's avatar
 
Dries committed
348 349 350 351
    case 200:
    case 302:
    case 307:
      // Filter the input data:
352
     if (aggregator_parse_feed($result->data, $feed)) {
353

Dries's avatar
 
Dries committed
354 355 356
        if ($result->headers['Last-Modified']) {
          $modified = strtotime($result->headers['Last-Modified']);
        }
Dries's avatar
Dries committed
357

Dries's avatar
 
Dries committed
358 359 360
        /*
        ** Prepare the image data (if any):
        */
Dries's avatar
 
Dries committed
361

Dries's avatar
 
Dries committed
362 363 364
        foreach ($image as $key => $value) {
          $image[$key] = trim($value);
        }
Dries's avatar
 
Dries committed
365

Dries's avatar
 
Dries committed
366
        if ($image['LINK'] && $image['URL'] && $image['TITLE']) {
Dries's avatar
 
Dries committed
367
          $image = '<a href="'. $image['LINK'] .'"><img src="'. $image['URL'] .'" alt="'. $image['TITLE'] .'" /></a>';
Dries's avatar
 
Dries committed
368
        }
Dries's avatar
 
Dries committed
369 370 371
        else {
          $image = NULL;
        }
Dries's avatar
 
Dries committed
372

Dries's avatar
 
Dries committed
373 374 375
        /*
        ** Update the feed data:
        */
Dries's avatar
 
Dries committed
376

Dries's avatar
 
Dries committed
377
        db_query("UPDATE {aggregator_feed} SET url = '%s', checked = %d, link = '%s', description = '%s', image = '%s', etag = '%s', modified = %d WHERE fid = %d", $feed['url'], time(), strip_tags($channel['LINK']), strip_tags($channel['DESCRIPTION']), $image, $result->headers['ETag'], $modified, $feed['fid']);
Dries's avatar
 
Dries committed
378

Dries's avatar
 
Dries committed
379 380 381
        /*
        ** Clear the cache:
        */
Dries's avatar
 
Dries committed
382

Dries's avatar
 
Dries committed
383
        cache_clear_all();
Dries's avatar
 
Dries committed
384

385
        watchdog('regular', t('aggregator: syndicated content from "%site"', array('%site' => $feed[title])));
Dries's avatar
 
Dries committed
386
        $message = t('syndicated content from "%site".', array('%site' => $feed['title']));
Dries's avatar
 
Dries committed
387 388 389
        drupal_set_message($message);
      }
      break;
Dries's avatar
 
Dries committed
390
    default:
391
      watchdog('error', t('aggregator: failed to parse RSS feed "%site": %error', array('%site' => $feed['title'], '%error' => $result->code .' '. $result->error)));
Dries's avatar
 
Dries committed
392
      $message = t('failed to parse RSS feed "%site": %error.', array('%site' => $feed['title'], '%error' => $result->code .' '. $result->error));
Dries's avatar
 
Dries committed
393
      drupal_set_message($message);
Dries's avatar
 
Dries committed
394
  }
Dries's avatar
 
Dries committed
395
}
Dries's avatar
 
Dries committed
396

Dries's avatar
 
Dries committed
397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433
/**
 * Parse the W3C date/time format, a subset of ISO 8601. PHP date parsing
 * functions do not handle this format.
 * See http://www.w3.org/TR/NOTE-datetime for more information.
 * Origionally from MagpieRSS (http://magpierss.sourceforge.net/).
 *
 * @param $date_str A string with a potentially W3C DTF date.
 * @return A timestamp if parsed sucessfully or -1 if not.
 */
function aggregator_parse_w3cdtf($date_str) {
  if (preg_match('/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/', $date_str, $match)) {
    list($year, $month, $day, $hours, $minutes, $seconds) = array($match[1], $match[2], $match[3], $match[4], $match[5], $match[6]);
    // calc epoch for current date assuming GMT
    $epoch = gmmktime($hours, $minutes, $seconds, $month, $day, $year);
    if ($match[10] != 'Z') { // Z is zulu time, aka GMT
      list($tz_mod, $tz_hour, $tz_min) = array($match[8], $match[9], $match[10]);
      // zero out the variables
      if (!$tz_hour) {
        $tz_hour = 0;
      }
      if (!$tz_min) {
        $tz_min = 0;
      }
      $offset_secs = (($tz_hour * 60) + $tz_min) * 60;
      // is timezone ahead of GMT?  then subtract offset
      if ($tz_mod == '+') {
        $offset_secs *= -1;
      }
      $epoch += $offset_secs;
    }
    return $epoch;
  }
  else {
    return -1;
  }
}

Dries's avatar
 
Dries committed
434
function aggregator_parse_feed(&$data, $feed) {
Dries's avatar
 
Dries committed
435
  global $items, $image, $channel;
Dries's avatar
 
Dries committed
436

Dries's avatar
 
Dries committed
437
  // Unset the global variables before we use them:
Dries's avatar
 
Dries committed
438
  unset($GLOBALS['element'], $GLOBALS['item'], $GLOBALS['tag']);
Dries's avatar
 
Dries committed
439
  $items = array();
Dries's avatar
 
Dries committed
440
  $image = array();
Dries's avatar
 
Dries committed
441
  $channel = array();
442

Dries's avatar
 
Dries committed
443 444
  // parse the data:
  $xml_parser = drupal_xml_parser_create($data);
Dries's avatar
 
Dries committed
445 446
  xml_set_element_handler($xml_parser, 'aggregator_element_start', 'aggregator_element_end');
  xml_set_character_data_handler($xml_parser, 'aggregator_element_data');
Dries's avatar
 
Dries committed
447

Dries's avatar
 
Dries committed
448
  if (!xml_parse($xml_parser, $data, 1)) {
449
    watchdog('error', t('aggregator: failed to parse RSS feed "%site": %error at line %line.', array('%site' => $feed['title'], '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))));
Dries's avatar
 
Dries committed
450
    $message = t('failed to parse RSS feed "%site": %error at line %line.', array('%site' => $feed['title'], '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser)));
Dries's avatar
 
Dries committed
451 452
    drupal_set_message($message, 'error');
    return 0;
Dries's avatar
 
Dries committed
453 454
  }
  xml_parser_free($xml_parser);
Dries's avatar
 
Dries committed
455

Dries's avatar
 
Dries committed
456
  // initialize the translation table:
457
  $tt = array_flip(get_html_translation_table(HTML_SPECIALCHARS));
Dries's avatar
 
Dries committed
458
  $tt['&apos;'] = "'";
Dries's avatar
 
Dries committed
459

Dries's avatar
 
Dries committed
460 461 462 463 464
  /*
  ** We reverse the array such that we store the first item last,
  ** and the last item first.  In the database, the newest item
  ** should be at the top.
  */
Dries's avatar
 
Dries committed
465

Dries's avatar
 
Dries committed
466
  $items = array_reverse($items);
Dries's avatar
 
Dries committed
467

Dries's avatar
 
Dries committed
468 469
  foreach ($items as $item) {
    unset($title, $link, $author, $description);
470

Dries's avatar
 
Dries committed
471 472 473 474
    // Prepare the item:
    foreach ($item as $key => $value) {
      $item[$key] = filter_default(strtr(trim($value), $tt));
    }
Dries's avatar
Dries committed
475

Dries's avatar
 
Dries committed
476 477 478 479 480 481
    /*
    ** Resolve the item's title.  If no title is found, we use
    ** up to 40 characters of the description ending at a word
    ** boundary but not splitting potential entities.
    */

Dries's avatar
 
Dries committed
482 483
    if ($item['TITLE']) {
      $title = $item['TITLE'];
Dries's avatar
 
Dries committed
484 485
    }
    else {
Dries's avatar
 
Dries committed
486
      $title = preg_replace('/^(.*)[^\w;&].*?$/', "\\1", truncate_utf8($item['DESCRIPTION'], 40));
Dries's avatar
 
Dries committed
487
    }
Dries's avatar
 
Dries committed
488

Dries's avatar
 
Dries committed
489 490 491 492
    /*
    ** Resolve the items link.
    */

Dries's avatar
 
Dries committed
493 494
    if ($item['LINK']) {
      $link = $item['LINK'];
Dries's avatar
 
Dries committed
495
    }
Dries's avatar
 
Dries committed
496 497
    elseif ($item['GUID'] && (strncmp($item['GUID'], 'http://', 7) == 0)) {
      $link = $item['GUID'];
Dries's avatar
 
Dries committed
498 499
    }
    else {
Dries's avatar
 
Dries committed
500
      $link = $feed['link'];
Dries's avatar
 
Dries committed
501
    }
502

Dries's avatar
 
Dries committed
503 504 505 506 507 508 509 510 511 512
    /*
    ** Try to resolve and parse the item's publication date.  If no
    ** date is found, we use the current date instead.
    */

    if ($item['PUBDATE']) $date = $item['PUBDATE'];                        // RSS 2.0
    else if ($item['DC:DATE']) $date = $item['DC:DATE'];                   // Dublin core
    else if ($item['DCTERMS:ISSUED']) $date = $item['DCTERMS:ISSUED'];     // Dublin core
    else if ($item['DCTERMS:CREATED']) $date = $item['DCTERMS:CREATED'];   // Dublin core
    else if ($item['DCTERMS:MODIFIED']) $date = $item['DCTERMS:MODIFIED']; // Dublin core
Dries's avatar
 
Dries committed
513
    else $date = 'now';
Dries's avatar
 
Dries committed
514

Dries's avatar
 
Dries committed
515
    $timestamp = strtotime($date); // strtotime() returns -1 on failure
Dries's avatar
 
Dries committed
516
    if ($timestamp < 0) {
Dries's avatar
 
Dries committed
517 518 519 520
      $timestamp = aggregator_parse_w3cdtf($date); // also returns -1 on failure
      if ($timestamp < 0) {
        $timestamp = time(); // better than nothing
      }
521
    }
Dries's avatar
 
Dries committed
522 523

    /*
Dries's avatar
 
Dries committed
524 525 526
    ** Save this item.  Try to avoid duplicate entries as much as
    ** possible.  If we find a duplicate entry, we resolve it and
    ** pass along it's ID such that we can update it if needed.
Dries's avatar
 
Dries committed
527 528
    */

Dries's avatar
 
Dries committed
529 530
    if ($link && $link != $feed['link'] && $link != $feed['url']) {
      $entry = db_fetch_object(db_query("SELECT iid FROM {aggregator_item} WHERE fid = %d AND link = '%s'", $feed['fid'], $link));
Dries's avatar
 
Dries committed
531 532
    }
    else {
Dries's avatar
 
Dries committed
533
      $entry = db_fetch_object(db_query("SELECT iid FROM {aggregator_item} WHERE fid = %d AND title = '%s'", $feed['fid'], $title));
Dries's avatar
 
Dries committed
534
    }
Dries's avatar
 
Dries committed
535

536 537 538 539 540 541
    if (!valid_input_data($item['DESCRIPTION'])) {
      drupal_set_message(t('failed to parse entry from "%site" feed: suspicious input data.', array('%site' => $feed['title'])), 'error');
    }
    else {
      aggregator_save_item(array('iid' => $entry->iid, 'fid' => $feed['fid'], 'timestamp' => $timestamp, 'title' => $title, 'link' => $link, 'author' => $item['AUTHOR'], 'description' => $item['DESCRIPTION']));
    }
Dries's avatar
 
Dries committed
542
  }
Dries's avatar
 
Dries committed
543

Dries's avatar
 
Dries committed
544
  /*
Dries's avatar
 
Dries committed
545
  ** Remove all items that are older than 3 months:
Dries's avatar
 
Dries committed
546
  */
Dries's avatar
 
Dries committed
547

Dries's avatar
 
Dries committed
548 549
  $age = time() - 1209600; // 3 month
  $result = db_query('SELECT iid FROM {aggregator_item} WHERE fid = %d AND timestamp < %d', $feed['fid'], $age);
Dries's avatar
 
Dries committed
550

551 552 553 554 555 556 557
  if (db_num_rows($result)) {
    $items = array();
    while ($item = db_fetch_object($result)) {
      $items[] = $item->iid;
    }
    db_query('DELETE FROM {aggregator_category_item} WHERE iid IN ('. implode(', ', $items) .')');
    db_query('DELETE FROM {aggregator_item} WHERE fid = %d AND timestamp < %d', $feed['fid'], $age);
Dries's avatar
 
Dries committed
558
  }
Dries's avatar
 
Dries committed
559 560

  return 1;
561 562
}

Kjartan's avatar
Kjartan committed
563
function aggregator_save_item($edit) {
Dries's avatar
 
Dries committed
564
  if ($edit['iid'] && $edit['title']) {
Dries's avatar
 
Dries committed
565
    db_query('UPDATE {aggregator_item} SET title = \'%s\', link = \'%s\', author = \'%s\', description = \'%s\' WHERE iid = %d', $edit['title'], $edit['link'], $edit['author'], $edit['description'], $edit['iid']);
566
  }
Dries's avatar
 
Dries committed
567 568 569
  else if ($edit['iid']) {
    db_query('DELETE FROM {aggregator_item} WHERE iid = %d', $edit['iid']);
    db_query('DELETE FROM {aggregator_category_item} WHERE iid = %d', $edit['iid']);
570
  }
Dries's avatar
 
Dries committed
571
  else if ($edit['title'] && $edit['link']) {
Dries's avatar
 
Dries committed
572 573
    $edit['iid'] = db_next_id('{aggregator_item}_iid');
    db_query('INSERT INTO {aggregator_item} (iid, fid, title, link, author, description, timestamp) VALUES (%d, %d, \'%s\', \'%s\', \'%s\', \'%s\', %d)', $edit['iid'], $edit['fid'], $edit['title'], $edit['link'], $edit['author'], $edit['description'], $edit['timestamp']);
Dries's avatar
 
Dries committed
574 575 576
    // file the items in the categories indicated by the feed
    $categories = db_query('SELECT cid FROM {aggregator_category_feed} WHERE fid = %d', $edit['fid']);
    while ($category = db_fetch_object($categories)) {
Dries's avatar
 
Dries committed
577
      db_query('INSERT INTO {aggregator_category_item} (cid, iid) VALUES (%d, %d)', $category->cid, $edit['iid']);
Dries's avatar
 
Dries committed
578
    }
579 580 581
  }
}

Dries's avatar
 
Dries committed
582 583
function aggregator_form_category($edit = array()) {
  $block_items = array(0 => t('no block'), 3 => t('3 items'), 5 => t('5 items'), 10 => t('10 items'), 15 => t('15 items'), 20 => t('20 items'), 25 => t('25 items'));
584

Dries's avatar
 
Dries committed
585 586
  $form = form_textfield(t('Title'), 'title', $edit['title'], 50, 64);
  $form .= form_textarea(t('Description'), 'description', $edit['description'], 60, 5);
587
  $form .= form_select(t('Latest items block'), 'block', $edit['block'], $block_items, t('If enabled, a block containing the latest items in this category will be available for placement on the <a href="%url">block configuration</a> page.', array('%url' => url('admin/block'))));
Dries's avatar
 
Dries committed
588
  $form .= form_submit(t('Submit'));
589

Dries's avatar
 
Dries committed
590 591 592
  if ($edit['cid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('cid', $edit['cid']);
593 594
  }

Dries's avatar
 
Dries committed
595
  return form($form);
596 597
}

Dries's avatar
 
Dries committed
598 599 600
function aggregator_save_category($edit) {
  if ($edit['cid'] && $edit['title']) {
    db_query('UPDATE {aggregator_category} SET title = \'%s\', description = \'%s\', block = %d WHERE cid = %d', $edit['title'], $edit['description'], $edit['block'], $edit['cid']);
601
  }
Dries's avatar
 
Dries committed
602 603
  else if ($edit['cid']) {
    db_query('DELETE FROM {aggregator_category} WHERE cid = %d', $edit['cid']);
604
  }
Dries's avatar
 
Dries committed
605
  else if ($edit['title']) {
Dries's avatar
 
Dries committed
606
    // a single unique id for bundles and feeds, to use in blocks
Dries's avatar
 
Dries committed
607 608
    $next_id = db_next_id('{aggregator_category}_cid');
    db_query('INSERT INTO {aggregator_category} (cid, title, description, block) VALUES (%d, \'%s\', \'%s\', %d)', $next_id, $edit['title'], $edit['description'], $edit['block']);
609 610 611
  }
}

Kjartan's avatar
Kjartan committed
612
function aggregator_form_feed($edit = array()) {
Dries's avatar
 
Dries committed
613
  $period = drupal_map_assoc(array(900, 1800, 3600, 7200, 10800, 21600, 32400, 43200, 64800, 86400, 172800, 259200, 604800, 1209600, 2419200), 'format_interval');
Dries's avatar
 
Dries committed
614
  $block_items = array(0 => t('no block'), 3 => t('3 items'), 5 => t('5 items'), 10 => t('10 items'), 15 => t('15 items'), 20 => t('20 items'), 25 => t('25 items'));
615

Dries's avatar
 
Dries committed
616 617
  if ($edit['refresh'] == '') {
    $edit['refresh'] = 3600;
Dries's avatar
 
Dries committed
618
  }
Dries's avatar
 
Dries committed
619

Dries's avatar
 
Dries committed
620
  $form .= form_textfield(t('Title'), 'title', $edit['title'], 50, 64, t('The name of the feed; typically the name of the web site you syndicate content from.'));
621
  $form .= form_textfield(t('URL'), 'url', $edit['url'], 50, 255, t('The fully-qualified URL of the feed.'));
Dries's avatar
 
Dries committed
622
  $form .= form_select(t('Update interval'), 'refresh', $edit['refresh'], $period, t('The refresh interval indicating how often you want to update this feed.  Requires crontab.'));
623
  $form .= form_select(t('Latest items block'), 'block', $edit['block'], $block_items, t('If enabled, a block containing the latest items from this feed will be available for placement on the <a href="%url">block configuration</a> page.', array('%url' => url('admin/block'))));
Dries's avatar
 
Dries committed
624
  $categories = db_query('SELECT c.cid, c.title, f.fid FROM {aggregator_category} c LEFT JOIN {aggregator_category_feed} f ON c.cid = f.cid AND f.fid = %d ORDER BY title', $edit['fid']);
Dries's avatar
 
Dries committed
625 626 627 628
  while ($category = db_fetch_object($categories)) {
    $checkboxes .= form_checkbox($category->title, "category][$category->cid", 1, $category->fid ? 1 : 0);
  }
  if ($checkboxes) {
629
    $form .= form_group(t('Automatically file items'), $checkboxes, t('New items in this feed will be automatically filed in the the checked categories as they are received.'));
Dries's avatar
 
Dries committed
630
  }
631

Dries's avatar
 
Dries committed
632
  $form .= form_submit(t('Submit'));
633

Dries's avatar
 
Dries committed
634 635 636
  if ($edit['fid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('fid', $edit['fid']);
637 638
  }

Dries's avatar
 
Dries committed
639
  return form($form);
640 641
}

Kjartan's avatar
Kjartan committed
642
function aggregator_save_feed($edit) {
Dries's avatar
 
Dries committed
643
  if ($edit['fid']) {
644
    // an existing feed is being modified, delete the category listings
Dries's avatar
 
Dries committed
645
    db_query('DELETE FROM {aggregator_category_feed} WHERE fid = %d', $edit['fid']);
646
  }
Dries's avatar
 
Dries committed
647 648
  if ($edit['fid'] && $edit['title']) {
    db_query('UPDATE {aggregator_feed} SET title = \'%s\', url = \'%s\', refresh = %d, block = %d WHERE fid = %d', $edit['title'], $edit['url'], $edit['refresh'], $edit['block'], $edit['fid']);
649
  }
Dries's avatar
 
Dries committed
650 651 652 653 654 655 656 657 658 659
  else if ($edit['fid']) {
    $result = db_query('SELECT iid FROM {aggregator_item} WHERE fid = %d', $edit['fid']);
    while ($item = db_fetch_object($result)) {
      $items[] = "iid = $item->iid";
    }
    if ($items) {
      db_query('DELETE FROM {aggregator_category_item} WHERE '. implode(' OR ', $items));
    }
    db_query('DELETE FROM {aggregator_feed} WHERE fid = %d', $edit['fid']);
    db_query('DELETE FROM {aggregator_item} WHERE fid = %d', $edit['fid']);
660
  }
Dries's avatar
 
Dries committed
661 662 663 664 665 666 667
  else if ($edit['title']) {
    // a single unique id for bundles and feeds, to use in blocks
    $edit['fid'] = db_next_id('{aggregator_feed}_fid');
    db_query('INSERT INTO {aggregator_feed} (fid, title, url, refresh, block) VALUES (%d, \'%s\', \'%s\', %d, %d)', $edit['fid'], $edit['title'], $edit['url'], $edit['refresh'], $edit['block']);
  }
  if ($edit['title']) {
    // the feed is being saved, save the categories as well
Dries's avatar
Dries committed
668 669 670 671 672
    if ($edit['category']) {
      foreach ($edit['category'] as $cid => $checked) {
        if ($checked) {
          db_query('INSERT INTO {aggregator_category_feed} (fid, cid) VALUES (%d, %d)', $edit['fid'], $cid);
        }
Dries's avatar
 
Dries committed
673 674
      }
    }
675 676 677
  }
}

Kjartan's avatar
Kjartan committed
678
function aggregator_get_feed($fid) {
Dries's avatar
 
Dries committed
679
  return db_fetch_array(db_query('SELECT * FROM {aggregator_feed} WHERE fid = %d', $fid));
680 681
}

Dries's avatar
 
Dries committed
682
function aggregator_get_category($cid) {
Dries's avatar
 
Dries committed
683
  return db_fetch_array(db_query('SELECT * FROM {aggregator_category} WHERE cid = %d', $cid));
684 685
}

Kjartan's avatar
Kjartan committed
686
function aggregator_view() {
Dries's avatar
 
Dries committed
687
  $result = db_query('SELECT f.*, COUNT(i.iid) AS items FROM {aggregator_feed} f LEFT JOIN {aggregator_item} i ON f.fid = i.fid GROUP BY f.fid, f.title, f.url, f.refresh, f.checked, f.link, f.description, f.etag, f.modified, f.image ORDER BY f.title');
688

Dries's avatar
 
Dries committed
689
  $output .= '<h3>'. t('Feed overview') .'</h3>';
Dries's avatar
 
Dries committed
690

Dries's avatar
 
Dries committed
691
  $header = array(t('title'), t('items'), t('last update'), t('next update'), array('data' => t('operations'), 'colspan' => 3));
Dries's avatar
 
Dries committed
692
  $rows = array();
693
  while ($feed = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
694
    $rows[] = array(l($feed->title, "aggregator/sources/$feed->fid"), format_plural($feed->items, '1 item', '%count items'), ($feed->checked ? t('%time ago', array('%time' => format_interval(time() - $feed->checked))) : t('never')), ($feed->checked ? t('%time left', array('%time' => format_interval($feed->checked + $feed->refresh - time()))) : t('never')), l(t('edit feed'), "admin/aggregator/edit/feed/$feed->fid"), l(t('remove items'), "admin/aggregator/remove/$feed->fid"), l(t('update items'), "admin/aggregator/update/$feed->fid"));
695
  }
Dries's avatar
 
Dries committed
696
  $output .= theme('table', $header, $rows);
697

Dries's avatar
 
Dries committed
698
  $result = db_query('SELECT c.cid, c.title, count(ci.iid) as items FROM {aggregator_category} c LEFT JOIN {aggregator_category_item} ci ON c.cid = ci.cid GROUP BY c.cid ORDER BY title');
699

Dries's avatar
 
Dries committed
700
  $output .= '<h3>'. t('Category overview') .'</h3>';
Dries's avatar
 
Dries committed
701

Dries's avatar
 
Dries committed
702
  $header = array(t('title'), t('items'), t('operations'));
Dries's avatar
 
Dries committed
703
  $rows = array();
Dries's avatar
 
Dries committed
704
  while ($category = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
705
    $rows[] = array(l($category->title, "aggregator/categories/$category->cid"), format_plural($category->items, '1 item', '%count items'), l(t('edit category'), "admin/aggregator/edit/category/$category->cid"));
706
  }
Dries's avatar
 
Dries committed
707
  $output .= theme('table', $header, $rows);
708 709 710 711

  return $output;
}

Dries's avatar
 
Dries committed
712 713 714 715 716 717 718 719 720 721 722
function aggregator_edit() {

  if ($_POST['op'] == t('Submit')) {
    if (arg(1) == 'categories') {
      aggregator_save_category($_POST['edit']);
      drupal_set_message(t('The category has been updated.'));
    }
    else {
      aggregator_save_feed($_POST['edit']);
      drupal_set_message(t('The feed has been updated.'));
    }
723 724

    drupal_goto($_GET['q']);
Dries's avatar
 
Dries committed
725 726 727 728 729 730 731 732 733 734 735 736 737 738
  }
  else if ($_POST['op'] == t('Delete')) {
    // Unset the title:
    unset($_POST['edit']['title']);

    if (arg(1) == 'categories') {
      aggregator_save_category($_POST['edit']);
      drupal_set_message(t('The category has been deleted.'));
    }
    else {
      aggregator_save_feed($_POST['edit']);
      drupal_set_message(t('The feed has been deleted.'));
    }

739
    drupal_goto('aggregator/'. arg(1));
Dries's avatar
 
Dries committed
740 741 742 743 744 745 746 747 748 749 750 751 752
  }

  if (arg(1) == 'categories') {
    $output = aggregator_form_category(aggregator_get_category(arg(2)));
  }
  else {
    $output = aggregator_form_feed(aggregator_get_feed(arg(2)));
  }

  print theme('page', $output);
}


Dries's avatar
 
Dries committed
753
/**
Dries's avatar
Dries committed
754
 * Menu callback; displays the category edit form, or saves changes and
755
 * redirects to the overview page.
Dries's avatar
 
Dries committed
756 757 758 759 760 761 762 763 764 765 766
 */
function aggregator_admin_edit_category($category = 0) {
  $edit = $_POST['edit'];
  $op = $_POST['op'];

  switch ($op) {
    case t('Delete'):
      $edit['title'] = 0;
      // Fall through:
    case t('Submit'):
      aggregator_save_category($edit);
767 768 769
      drupal_set_message($edit['title'] ? t('The category has been updated.') : t('The category has been deleted.'));
      drupal_goto('admin/aggregator');
      break;
Dries's avatar
 
Dries committed
770 771 772
    default:
      if ($category) {
        $output = aggregator_form_category(aggregator_get_category($category));
Dries's avatar
 
Dries committed
773 774
      }
      else {
Dries's avatar
 
Dries committed
775
        $output = aggregator_form_category();
Dries's avatar
 
Dries committed
776
      }
Dries's avatar
 
Dries committed
777 778 779 780 781
  }
  print theme('page', $output);
}

/**
Dries's avatar
Dries committed
782 783
 * Menu callback; displays the feed edit form.
 *
784
 * After editing, saves changes and redirects to the overview page.
Dries's avatar
 
Dries committed
785 786 787 788 789 790 791 792 793 794 795
 */
function aggregator_admin_edit_feed($feed = 0) {
  $edit = $_POST['edit'];
  $op = $_POST['op'];

  switch ($op) {
    case t('Delete'):
      $edit['title'] = 0;
      // Fall through:
    case t('Submit'):
      aggregator_save_feed($edit);
796 797 798
      drupal_set_message($edit['title'] ? t('The feed has been updated.') : t('The feed has been deleted.'));
      drupal_goto('admin/aggregator');
      break;
Dries's avatar
 
Dries committed
799 800 801
    default:
      if ($feed) {
        $output = aggregator_form_feed(aggregator_get_feed($feed));
Dries's avatar
 
Dries committed
802 803
      }
      else {
Dries's avatar
 
Dries committed
804
        $output = aggregator_form_feed();
Dries's avatar
 
Dries committed
805
      }
806
  }
Dries's avatar
 
Dries committed
807 808 809 810
  print theme('page', $output);
}

/**
811
 * Menu callback; removes all items from a feed, then redirects to the overview page.
Dries's avatar
 
Dries committed
812 813 814
 */
function aggregator_admin_remove_feed($feed) {
  aggregator_remove(aggregator_get_feed($feed));
815
  drupal_goto('admin/aggregator');
Dries's avatar
 
Dries committed
816 817 818
}

/**
819
 * Menu callback; refreshes a feed, then redirects to the overview page.
Dries's avatar
 
Dries committed
820 821 822
 */
function aggregator_admin_refresh_feed($feed) {
  aggregator_refresh(aggregator_get_feed($feed));
823
  drupal_goto('admin/aggregator');
Dries's avatar
 
Dries committed
824 825 826
}

/**
Dries's avatar
Dries committed
827
 * Menu callback; displays the aggregator administration page.
Dries's avatar
 
Dries committed
828 829 830
 */
function aggregator_admin_overview() {
  print theme('page', aggregator_view());
831 832
}

Dries's avatar
 
Dries committed
833
/**
Dries's avatar
Dries committed
834
 * Menu callback; displays the most recent items gathered from any feed.
Dries's avatar
 
Dries committed
835
 */
836
function aggregator_page_last() {
Dries's avatar
 
Dries committed
837
  _aggregator_page_list('SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_item} i INNER JOIN {aggregator_feed} f ON i.fid = f.fid ORDER BY i.timestamp DESC, i.iid DESC', arg(1));
Dries's avatar
 
Dries committed