aggregator.module 44.1 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 20 21
      <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>
      <p>To subscribe to an RSS feed on another site, use the <a href="%admin-news">RSS/RDF</a> administration page.</p>
      <p>Once there, select <a href="%new-feed">new feed</a> from the menu. Drupal will then ask for the following:</p>
Dries's avatar
 
Dries committed
22
      <ul>
Dries's avatar
 
Dries committed
23 24 25 26 27
       <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>
       <li><strong>Automatically file items</strong> -- As items are recieved 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 30 31 32
      <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">RSS/RDF</a> page. If you do not see any items listed for that feed, edit the feed and make sure that the URL was entered correctly.</p>
      <h3>Adding categories</h3>
      <p>News items can be filed into categories. To create a category, start at the <a href="%admin-news">RSS/RDF</a> administration page.</p>
      <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 52
      <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>
      <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 slect 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
      <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/system/block'), '%admin-news' => url('admin/syndication/news'), '%new-feed' => url('admin/syndication/news/add/feed'), '%new-category' => url('admin/syndication/news/add/category'), '%update-items' => url('admin/syndication/news'), '%news-aggregator' => url('aggregator'), '%sources' => url('aggregator/sources'), '%categories' => url('aggregator/categories')));
Dries's avatar
 
Dries committed
57
    case 'admin/system/modules#description':
Dries's avatar
 
Dries committed
58
      return t('Used to aggregate syndicated content (RSS and RDF).');
Kjartan's avatar
Kjartan committed
59
    case 'admin/system/modules/aggregator':
Dries's avatar
 
Dries committed
60
      return t('These settings control the display of aggregated content.');
Dries's avatar
 
Dries committed
61
    case 'admin/syndication/news':
Dries's avatar
 
Dries committed
62
      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 categoty 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/system/block'), '%cron' => url('admin/help', NULL, 'cron')));
Dries's avatar
 
Dries committed
63
    case 'admin/syndication/news/add/feed':
Dries's avatar
 
Dries committed
64 65 66
      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.');
    case 'admin/syndication/news/add/category':
      return t('Categoriess 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.');
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
/**
 * Implementation of hook_settings().
 */
Kjartan's avatar
Kjartan committed
80
function aggregator_settings() {
Dries's avatar
 
Dries committed
81
  $output = '';
Dries's avatar
 
Dries committed
82
  $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
83
  $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
84

Dries's avatar
 
Dries committed
85 86
  $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
87

Dries's avatar
 
Dries committed
88 89 90
  return $output;
}

Dries's avatar
 
Dries committed
91 92 93
/**
 * Implementation of hook_perm().
 */
Kjartan's avatar
Kjartan committed
94
function aggregator_perm() {
Dries's avatar
 
Dries committed
95
  return array('administer news feeds', 'access news feeds');
Dries's avatar
 
Dries committed
96 97
}

Dries's avatar
 
Dries committed
98 99 100
/**
 * Implementation of hook_link().
 */
Kjartan's avatar
Kjartan committed
101
function aggregator_link($type) {
Dries's avatar
 
Dries committed
102 103 104 105 106
  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.'))));
  }

  if ($type == 'system') {
Dries's avatar
 
Dries committed
107 108
    $access = user_access('administer news feeds');
    menu('admin/syndication', t('syndication'), $access ? 'aggregator_help_page' : MENU_DENIED, 5);
Dries's avatar
 
Dries committed
109 110
    menu('admin/syndication/news', t('RSS/RDF'), $access ? 'aggregator_admin_overview' : MENU_DENIED);
    menu('admin/syndication/news/add/feed', t('new feed'), $access ? 'aggregator_admin_edit_feed' : MENU_DENIED, 2);
Kjartan's avatar
Kjartan committed
111
    menu('admin/syndication/news/edit/feed', t('edit feed'), $access ? 'aggregator_admin_edit_feed' : MENU_DENIED, 2, MENU_HIDE);
Dries's avatar
 
Dries committed
112
    menu('admin/syndication/news/add/category', t('new category'), $access ? 'aggregator_admin_edit_category' : MENU_DENIED, 3);
Kjartan's avatar
Kjartan committed
113
    menu('admin/syndication/news/edit/category', t('edit category'), $access ? 'aggregator_admin_edit_category' : MENU_DENIED, 3, MENU_HIDE);
Dries's avatar
 
Dries committed
114 115
    menu('admin/syndication/news/remove', t('remove items'), $access ? 'aggregator_admin_remove_feed' : MENU_DENIED, 0, MENU_HIDE, MENU_LOCKED);
    menu('admin/syndication/news/update', t('update items'), $access ? 'aggregator_admin_refresh_feed' : MENU_DENIED, 0, MENU_HIDE, MENU_LOCKED);
Dries's avatar
 
Dries committed
116
    menu('admin/syndication/news/help', t('help'), $access ? 'aggregator_help_page' : MENU_DENIED, 9);
Dries's avatar
 
Dries committed
117

Dries's avatar
 
Dries committed
118
    $access = user_access('access news feeds');
Dries's avatar
 
Dries committed
119 120 121 122 123 124
    menu('aggregator', t('news aggregator'), $access ? 'aggregator_page_last' : MENU_DENIED, 5);
    menu('aggregator/sources', t('sources'), $access ? 'aggregator_page_sources' : MENU_DENIED, 0);
    menu('aggregator/categories', t('categories'), $access ? 'aggregator_page_categories' : MENU_DENIED, 1, MENU_HIDE_NOCHILD);

    // To reduce the number of SQL queries, we don't query the database when
    // not on an aggregator page.
Dries's avatar
 
Dries committed
125 126
    // If caching of the menu is implemented, this check should be removed
    // so that DHTML menu presentation can be used correctly.
Dries's avatar
 
Dries committed
127 128 129 130 131 132
    if (arg(0) == 'aggregator') {
      // Sources:
      $result = db_query('SELECT title, fid FROM {aggregator_feed} ORDER BY title');
      while ($feed = db_fetch_object($result)) {
        menu('aggregator/sources/'. $feed->fid, $feed->title, $access ? 'aggregator_page_source' : MENU_DENIED);
      }
Dries's avatar
 
Dries committed
133

Dries's avatar
 
Dries committed
134 135 136 137 138
      // Categories:
      $result = db_query('SELECT title, cid FROM {aggregator_category} ORDER BY title');
      while ($category = db_fetch_object($result)) {
        menu('aggregator/categories/'. $category->cid, $category->title, $access ? 'aggregator_page_category' : MENU_DENIED);
      }
Dries's avatar
 
Dries committed
139
    }
140

Dries's avatar
 
Dries committed
141
    menu('aggregator/opml', t('opml'), $access ? 'aggregator_page_opml' : MENU_DENIED, '', MENU_HIDE);
142 143 144
  }
}

Dries's avatar
 
Dries committed
145 146 147 148 149
/**
 * Implementation of hook_cron().
 *
 * Checks news feeds for updates once their refresh interval has elapsed.
 */
Dries's avatar
 
Dries committed
150
function aggregator_cron() {
Dries's avatar
 
Dries committed
151
  $result = db_query('SELECT * FROM {aggregator_feed} WHERE checked + refresh < %d', time());
Dries's avatar
 
Dries committed
152 153
  while ($feed = db_fetch_array($result)) {
    aggregator_refresh($feed);
Dries's avatar
 
Dries committed
154 155 156
  }
}

Dries's avatar
 
Dries committed
157 158 159 160 161
/**
 * Implementation of hook_block().
 *
 * Generates blocks for the latest news items in each category and feed.
 */
Kjartan's avatar
Kjartan committed
162
function aggregator_block($op, $delta) {
Dries's avatar
 
Dries committed
163
  if (user_access('access news feeds')) {
Dries's avatar
 
Dries committed
164 165 166 167
    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
168
      }
Dries's avatar
 
Dries committed
169
      $result = db_query('SELECT fid, title FROM {aggregator_feed} WHERE block != 0 ORDER BY fid');
Kjartan's avatar
Kjartan committed
170
      while ($feed = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
171
        $block['feed:'. $feed->fid]['info'] = t('%title feed latest items', array('%title' => $feed->title));
Kjartan's avatar
Kjartan committed
172
      }
Dries's avatar
 
Dries committed
173
    }
Kjartan's avatar
Kjartan committed
174
    else {
Dries's avatar
 
Dries committed
175
      list($type, $id) = split(':', $delta);
Kjartan's avatar
Kjartan committed
176
      switch ($type) {
Dries's avatar
 
Dries committed
177 178 179 180 181
        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
182
          break;
Dries's avatar
 
Dries committed
183 184 185 186 187
        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
188 189
          break;
      }
Dries's avatar
 
Dries committed
190 191
      $items = array();
      while ($item = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
192
        $items[] = theme('aggregator_block_item', $item);
Dries's avatar
 
Dries committed
193
      }
Dries's avatar
 
Dries committed
194
      $block['content'] = theme('item_list', $items) . $block['content'];
Dries's avatar
 
Dries committed
195
    }
Dries's avatar
 
Dries committed
196
    return $block;
Dries's avatar
 
Dries committed
197
  }
Dries's avatar
 
Dries committed
198 199
}

Dries's avatar
 
Dries committed
200 201 202 203
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
204
  }
Dries's avatar
 
Dries committed
205 206
  if ($items) {
    db_query('DELETE FROM {aggregator_category_item} WHERE '. implode(' OR ', $items));
Dries's avatar
 
Dries committed
207
  }
Dries's avatar
 
Dries committed
208
  db_query('DELETE FROM {aggregator_item} WHERE fid = %d', $feed['fid']);
Kjartan's avatar
Kjartan committed
209
  db_query("UPDATE {aggregator_feed} SET checked = 0, etag = '', modified = 0 WHERE fid = %d", $feed['fid']);
Dries's avatar
 
Dries committed
210
  drupal_set_message(t('removed news items from \'%site\'.', array('%site' => $feed['title'])));
Dries's avatar
 
Dries committed
211 212
}

Dries's avatar
 
Dries committed
213 214 215
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
216
function aggregator_element_start($parser, $name, $attributes) {
Dries's avatar
 
Dries committed
217 218 219
  global $item, $element, $tag;

  switch ($name) {
Dries's avatar
 
Dries committed
220 221
    case 'IMAGE':
    case 'TEXTINPUT':
Dries's avatar
 
Dries committed
222 223
      $element = $name;
      break;
Dries's avatar
 
Dries committed
224
    case 'ITEM':
Dries's avatar
 
Dries committed
225 226
      $element = $name;
      $item += 1;
227 228 229 230 231
  }

  $tag = $name;
}

Dries's avatar
 
Dries committed
232 233 234
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
235
function aggregator_element_end($parser, $name) {
Dries's avatar
 
Dries committed
236 237
  global $element;

Dries's avatar
 
Dries committed
238
  switch ($name) {
Dries's avatar
 
Dries committed
239 240 241 242
    case 'IMAGE':
    case 'TEXTINPUT':
    case 'ITEM':
      $element = '';
Dries's avatar
 
Dries committed
243
  }
244 245
}

Dries's avatar
 
Dries committed
246 247 248
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
249
function aggregator_element_data($parser, $data) {
Dries's avatar
 
Dries committed
250
  global $channel, $element, $items, $item, $image, $tag;
Dries's avatar
 
Dries committed
251 252

  switch ($element) {
Dries's avatar
 
Dries committed
253
    case 'ITEM':
Dries's avatar
 
Dries committed
254 255
      $items[$item][$tag] .= $data;
      break;
Dries's avatar
 
Dries committed
256
    case 'IMAGE':
Dries's avatar
 
Dries committed
257 258
      $image[$tag] .= $data;
      break;
Dries's avatar
 
Dries committed
259 260 261
    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
262 263 264
      break;
    default:
      $channel[$tag] .= $data;
265 266 267
  }
}

Dries's avatar
 
Dries committed
268 269 270
/**
 * Checks a news feed for new items.
 */
Kjartan's avatar
Kjartan committed
271
function aggregator_refresh($feed) {
Dries's avatar
 
Dries committed
272 273
  global $channel, $image;

Dries's avatar
 
Dries committed
274 275 276 277 278 279
  // Generate conditional GET headers.
  $headers = array();
  if ($feed['etag']) {
    $headers['If-None-Match'] = $feed['etag'];
  }
  if ($feed['modified']) {
Dries's avatar
 
Dries committed
280
    $headers['If-Modified-Since'] = gmdate('D, d M Y H:i:s', $feed['modified']) .' GMT';
Dries's avatar
 
Dries committed
281 282 283 284 285 286 287 288
  }

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

  // Process HTTP reponse code.
  switch ($result->code) {
    case 304:
Dries's avatar
 
Dries committed
289 290
      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
291
      break;
Dries's avatar
 
Dries committed
292 293
    case 301:
      $feed['url'] = $result->redirect_url;
Dries's avatar
 
Dries committed
294
      watchdog('special', "aggregator: updated URL for feed \"$feed[title]\" to $feed[url]");
Dries's avatar
 
Dries committed
295 296 297 298
    case 200:
    case 302:
    case 307:
      // Filter the input data:
299
     if (aggregator_parse_feed($result->data, $feed)) {
300

Dries's avatar
 
Dries committed
301 302 303
        if ($result->headers['Last-Modified']) {
          $modified = strtotime($result->headers['Last-Modified']);
        }
Dries's avatar
Dries committed
304

Dries's avatar
 
Dries committed
305 306 307
        /*
        ** Prepare the image data (if any):
        */
Dries's avatar
 
Dries committed
308

Dries's avatar
 
Dries committed
309 310 311
        foreach ($image as $key => $value) {
          $image[$key] = trim($value);
        }
Dries's avatar
 
Dries committed
312

Dries's avatar
 
Dries committed
313
        if ($image['LINK'] && $image['URL'] && $image['TITLE']) {
Dries's avatar
 
Dries committed
314
          $image = '<a href="'. $image['LINK'] .'"><img src="'. $image['URL'] .'" alt="'. $image['TITLE'] .'" /></a>';
Dries's avatar
 
Dries committed
315
        }
Dries's avatar
 
Dries committed
316 317 318
        else {
          $image = NULL;
        }
Dries's avatar
 
Dries committed
319

Dries's avatar
 
Dries committed
320 321 322
        /*
        ** Update the feed data:
        */
Dries's avatar
 
Dries committed
323

Dries's avatar
 
Dries committed
324
        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
325

Dries's avatar
 
Dries committed
326 327 328
        /*
        ** Clear the cache:
        */
Dries's avatar
 
Dries committed
329

Dries's avatar
 
Dries committed
330
        cache_clear_all();
Dries's avatar
 
Dries committed
331

Dries's avatar
 
Dries committed
332
        $message = t('syndicated content from "%site".', array('%site' => $feed['title']));
Dries's avatar
 
Dries committed
333 334 335 336
        watchdog('regular', "aggregator: $message");
        drupal_set_message($message);
      }
      break;
Dries's avatar
 
Dries committed
337
    default:
Dries's avatar
 
Dries committed
338
      $message = t('failed to parse RSS feed "%site": %error.', array('%site' => $feed['title'], '%error' => $result->code .' '. $result->error));
Dries's avatar
 
Dries committed
339 340
      watchdog('error', "aggregator: $message");
      drupal_set_message($message);
Dries's avatar
 
Dries committed
341
  }
Dries's avatar
 
Dries committed
342
}
Dries's avatar
 
Dries committed
343

Dries's avatar
 
Dries committed
344
function aggregator_parse_feed(&$data, $feed) {
Dries's avatar
 
Dries committed
345
  global $items, $image, $channel;
Dries's avatar
 
Dries committed
346

Dries's avatar
 
Dries committed
347
  // Unset the global variables before we use them:
Dries's avatar
 
Dries committed
348
  unset($GLOBALS['element'], $GLOBALS['item'], $GLOBALS['tag']);
Dries's avatar
 
Dries committed
349
  $items = array();
Dries's avatar
 
Dries committed
350
  $image = array();
Dries's avatar
 
Dries committed
351
  $channel = array();
352

Dries's avatar
 
Dries committed
353 354
  // parse the data:
  $xml_parser = drupal_xml_parser_create($data);
Dries's avatar
 
Dries committed
355 356
  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
357

Dries's avatar
 
Dries committed
358
  if (!xml_parse($xml_parser, $data, 1)) {
Dries's avatar
 
Dries committed
359
    $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
360 361 362
    watchdog('error', "aggregator: $message");
    drupal_set_message($message, 'error');
    return 0;
Dries's avatar
 
Dries committed
363 364
  }
  xml_parser_free($xml_parser);
Dries's avatar
 
Dries committed
365

Dries's avatar
 
Dries committed
366
  // initialize the translation table:
367
  $tt = array_flip(get_html_translation_table(HTML_SPECIALCHARS));
Dries's avatar
 
Dries committed
368
  $tt['&apos;'] = "'";
Dries's avatar
 
Dries committed
369

Dries's avatar
 
Dries committed
370 371 372 373 374
  /*
  ** 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
375

Dries's avatar
 
Dries committed
376
  $items = array_reverse($items);
Dries's avatar
 
Dries committed
377

Dries's avatar
 
Dries committed
378 379
  foreach ($items as $item) {
    unset($title, $link, $author, $description);
380

Dries's avatar
 
Dries committed
381 382 383 384
    // Prepare the item:
    foreach ($item as $key => $value) {
      $item[$key] = filter_default(strtr(trim($value), $tt));
    }
Dries's avatar
Dries committed
385

Dries's avatar
 
Dries committed
386 387 388 389 390 391
    /*
    ** 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
392 393
    if ($item['TITLE']) {
      $title = $item['TITLE'];
Dries's avatar
 
Dries committed
394 395
    }
    else {
Dries's avatar
 
Dries committed
396
      $title = preg_replace('/^(.*)[^\w;&].*?$/', "\\1", truncate_utf8($item['DESCRIPTION'], 40));
Dries's avatar
 
Dries committed
397
    }
Dries's avatar
 
Dries committed
398

Dries's avatar
 
Dries committed
399 400 401 402
    /*
    ** Resolve the items link.
    */

Dries's avatar
 
Dries committed
403 404
    if ($item['LINK']) {
      $link = $item['LINK'];
Dries's avatar
 
Dries committed
405
    }
Dries's avatar
 
Dries committed
406 407
    elseif ($item['GUID'] && (strncmp($item['GUID'], 'http://', 7) == 0)) {
      $link = $item['GUID'];
Dries's avatar
 
Dries committed
408 409
    }
    else {
Dries's avatar
 
Dries committed
410
      $link = $feed['link'];
Dries's avatar
 
Dries committed
411
    }
412

Dries's avatar
 
Dries committed
413 414 415 416 417 418 419 420 421 422
    /*
    ** 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
423
    else $date = 'now';
Dries's avatar
 
Dries committed
424 425 426 427 428 429 430 431 432

    $timestamp = strtotime($date);  // strtotime() returns -1 on failure

    if ($timestamp < 0) {
      /*
      ** The Dublin core's default data format uses ISO 8601 which can't
      ** be parsed directly using PHP's strtotime().  It is not the only
      ** valid format so this might fail nonetheless ...
      */
Dries's avatar
 
Dries committed
433
      list($year, $month, $day, $hour, $minute, $second) = sscanf($date, '%4d-%2d-%2dT%2d:%2d:%2d');
Dries's avatar
 
Dries committed
434 435 436 437
      $timestamp = strtotime("$year-$month-$day $hour:$minute:$second");
    }

    if ($timestamp < 0) {
Dries's avatar
 
Dries committed
438
      $timestamp = time();
439
    }
Dries's avatar
 
Dries committed
440 441

    /*
Dries's avatar
 
Dries committed
442 443 444
    ** 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
445 446
    */

Dries's avatar
 
Dries committed
447 448
    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
449 450
    }
    else {
Dries's avatar
 
Dries committed
451
      $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
452
    }
Dries's avatar
 
Dries committed
453

454 455 456 457 458 459
    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
460
  }
Dries's avatar
 
Dries committed
461

Dries's avatar
 
Dries committed
462
  /*
Dries's avatar
 
Dries committed
463
  ** Remove all items that are older than 3 months:
Dries's avatar
 
Dries committed
464
  */
Dries's avatar
 
Dries committed
465

Dries's avatar
 
Dries committed
466 467
  $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
468

469 470 471 472 473 474 475
  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
476
  }
Dries's avatar
 
Dries committed
477 478

  return 1;
479 480
}

Kjartan's avatar
Kjartan committed
481
function aggregator_save_item($edit) {
Dries's avatar
 
Dries committed
482 483
  if ($edit['iid'] && $edit['title']) {
    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']);
484
  }
Dries's avatar
 
Dries committed
485 486 487
  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']);
488
  }
Dries's avatar
 
Dries committed
489 490 491
  else if ($edit['title'] && $edit['link']) {
    $next_id = 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)", $next_id, $edit['fid'], $edit['title'], $edit['link'], $edit['author'], $edit['description'], $edit['timestamp']);
Dries's avatar
 
Dries committed
492 493 494 495 496
    // 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)) {
      db_query('INSERT INTO {aggregator_category_item} (cid, iid) VALUES (%d, %d)', $category->cid, $next_id);
    }
497 498 499
  }
}

Dries's avatar
 
Dries committed
500 501
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'));
502

Dries's avatar
 
Dries committed
503 504 505 506
  $form = form_textfield(t('Title'), 'title', $edit['title'], 50, 64);
  $form .= form_textarea(t('Description'), 'description', $edit['description'], 60, 5);
  $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 availiable for placement on the <a href="%url">block configuration</a> page.', array('%url' => url('admin/system/block'))));
  $form .= form_submit(t('Submit'));
507

Dries's avatar
 
Dries committed
508 509 510
  if ($edit['cid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('cid', $edit['cid']);
511 512
  }

Dries's avatar
 
Dries committed
513
  return form($form);
514 515
}

Dries's avatar
 
Dries committed
516 517 518
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']);
519
  }
Dries's avatar
 
Dries committed
520 521
  else if ($edit['cid']) {
    db_query('DELETE FROM {aggregator_category} WHERE cid = %d', $edit['cid']);
522
  }
Dries's avatar
 
Dries committed
523
  else if ($edit['title']) {
Dries's avatar
 
Dries committed
524
    // a single unique id for bundles and feeds, to use in blocks
Dries's avatar
 
Dries committed
525 526
    $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']);
527 528 529
  }
}

Kjartan's avatar
Kjartan committed
530
function aggregator_form_feed($edit = array()) {
Dries's avatar
 
Dries committed
531
  $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
532
  $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'));
533

Dries's avatar
 
Dries committed
534 535
  if ($edit['refresh'] == '') {
    $edit['refresh'] = 3600;
Dries's avatar
 
Dries committed
536
  }
Dries's avatar
 
Dries committed
537

Dries's avatar
 
Dries committed
538 539 540
  $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.'));
  $form .= form_textfield(t('URL'), 'url', $edit['url'], 50, 128, t('The fully-qualified URL of the feed.'));
  $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.'));
Dries's avatar
 
Dries committed
541
  $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 availiable for placement on the <a href="%url">block configuration</a> page.', array('%url' => url('admin/system/block'))));
Dries's avatar
 
Dries committed
542
  $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
543 544 545 546 547 548
  while ($category = db_fetch_object($categories)) {
    $checkboxes .= form_checkbox($category->title, "category][$category->cid", 1, $category->fid ? 1 : 0);
  }
  if ($checkboxes) {
    $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 recieved.'));
  }
549

Dries's avatar
 
Dries committed
550
  $form .= form_submit(t('Submit'));
551

Dries's avatar
 
Dries committed
552 553 554
  if ($edit['fid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('fid', $edit['fid']);
555 556
  }

Dries's avatar
 
Dries committed
557
  return form($form);
558 559
}

Kjartan's avatar
Kjartan committed
560
function aggregator_save_feed($edit) {
Dries's avatar
 
Dries committed
561 562 563
  if ($edit['fid']) {
    // an exisitng feed is being modified, delete the category listings
    db_query('DELETE FROM {aggregator_category_feed} WHERE fid = %d', $edit['fid']);
564
  }
Dries's avatar
 
Dries committed
565 566
  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']);
567
  }
Dries's avatar
 
Dries committed
568 569 570 571 572 573 574 575 576 577
  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']);
578
  }
Dries's avatar
 
Dries committed
579 580 581 582 583 584 585 586 587 588 589 590
  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
    foreach ($edit['category'] as $cid => $checked) {
      if ($checked) {
        db_query('INSERT INTO {aggregator_category_feed} (fid, cid) VALUES (%d, %d)', $edit['fid'], $cid);
      }
    }
591 592 593
  }
}

Kjartan's avatar
Kjartan committed
594
function aggregator_get_feed($fid) {
Dries's avatar
 
Dries committed
595
  return db_fetch_array(db_query('SELECT * FROM {aggregator_feed} WHERE fid = %d', $fid));
596 597
}

Dries's avatar
 
Dries committed
598
function aggregator_get_category($cid) {
Dries's avatar
 
Dries committed
599
  return db_fetch_array(db_query('SELECT * FROM {aggregator_category} WHERE cid = %d', $cid));
600 601
}

Kjartan's avatar
Kjartan committed
602
function aggregator_view() {
Dries's avatar
 
Dries committed
603
  $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');
604

Dries's avatar
 
Dries committed
605
  $output .= '<h3>'. t('Feed overview') .'</h3>';
Dries's avatar
 
Dries committed
606

Dries's avatar
 
Dries committed
607
  $header = array(t('title'), t('items'), t('last update'), t('next update'), array('data' => t('operations'), 'colspan' => 3));
Dries's avatar
 
Dries committed
608
  $rows = array();
609
  while ($feed = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
610
    $rows[] = array(l($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 + $feed->refresh - time()))) : t('never')), l(t('edit feed'), "admin/syndication/news/edit/feed/$feed->fid"), l(t('remove items'), "admin/syndication/news/remove/$feed->fid"), l(t('update items'), "admin/syndication/news/update/$feed->fid"));
611
  }
Dries's avatar
 
Dries committed
612
  $output .= theme('table', $header, $rows);
613

Dries's avatar
 
Dries committed
614
  $result = db_query('SELECT * FROM {aggregator_category} ORDER BY title');
615

Dries's avatar
 
Dries committed
616
  $output .= '<h3>'. t('Category overview') .'</h3>';
Dries's avatar
 
Dries committed
617

Dries's avatar
 
Dries committed
618
  $header = array(t('title'), t('operations'));
Dries's avatar
 
Dries committed
619
  $rows = array();
Dries's avatar
 
Dries committed
620
  while ($category = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
621
    $rows[] = array(l($category->title, "aggregator/categories/$category->cid"), l(t('edit category'), "admin/syndication/news/edit/category/$category->cid"));
622
  }
Dries's avatar
 
Dries committed
623
  $output .= theme('table', $header, $rows);
624 625 626 627

  return $output;
}

Dries's avatar
 
Dries committed
628
/**
Dries's avatar
Dries committed
629
 * Menu callback; displays the category edit form, or saves changes and
Dries's avatar
 
Dries committed
630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645
 * displays the overview page.
 */
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);
      $output = aggregator_view();
    default:
      if ($category) {
        $output = aggregator_form_category(aggregator_get_category($category));
Dries's avatar
 
Dries committed
646 647
      }
      else {
Dries's avatar
 
Dries committed
648
        $output = aggregator_form_category();
Dries's avatar
 
Dries committed
649
      }
Dries's avatar
 
Dries committed
650 651 652 653 654
  }
  print theme('page', $output);
}

/**
Dries's avatar
Dries committed
655 656 657
 * Menu callback; displays the feed edit form.
 *
 * After editing, saves changes and displays the overview page.
Dries's avatar
 
Dries committed
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672
 */
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);
      $output = aggregator_view();
    default:
      if ($feed) {
        $output = aggregator_form_feed(aggregator_get_feed($feed));
Dries's avatar
 
Dries committed
673 674
      }
      else {
Dries's avatar
 
Dries committed
675
        $output = aggregator_form_feed();
Dries's avatar
 
Dries committed
676
      }
677
  }
Dries's avatar
 
Dries committed
678 679 680 681
  print theme('page', $output);
}

/**
Dries's avatar
Dries committed
682
 * Menu callback; removes all items from a feed, then displays the overview page.
Dries's avatar
 
Dries committed
683 684 685 686 687 688 689
 */
function aggregator_admin_remove_feed($feed) {
  aggregator_remove(aggregator_get_feed($feed));
  print theme('page', aggregator_view());
}

/**
Dries's avatar
Dries committed
690
 * Menu callback; refreshes a feed, then displays the overview page.
Dries's avatar
 
Dries committed
691 692 693 694 695 696 697
 */
function aggregator_admin_refresh_feed($feed) {
  aggregator_refresh(aggregator_get_feed($feed));
  print theme('page', aggregator_view());
}

/**
Dries's avatar
Dries committed
698
 * Menu callback; displays the aggregator administration page.
Dries's avatar
 
Dries committed
699 700 701
 */
function aggregator_admin_overview() {
  print theme('page', aggregator_view());
702 703
}

Dries's avatar
 
Dries committed
704
/**
Dries's avatar
Dries committed
705
 * Menu callback; displays the most recent items gathered from any feed.
Dries's avatar
 
Dries committed
706
 */
707
function aggregator_page_last() {
Dries's avatar
 
Dries committed
708
  _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
709 710
}

Dries's avatar
 
Dries committed
711
/**
Dries's avatar
Dries committed
712
 * Menu callback; displays all the items captured from a particular feed.
Dries's avatar
 
Dries committed
713
 */
714
function aggregator_page_source() {
Dries's avatar
 
Dries committed
715
  $feed = db_fetch_object(db_query('SELECT * FROM {aggregator_feed} WHERE fid = %d', arg(2)));
Dries's avatar
 
Dries committed
716
  $info = theme('aggregator_feed', $feed);
Dries's avatar
 
Dries committed
717

718
  _aggregator_page_list('SELECT * FROM {aggregator_item} WHERE fid = '. $feed->fid .' ORDER BY timestamp DESC, iid DESC', arg(3), "<div class=\"feed\">$info</div>");
Dries's avatar
 
Dries committed
719 720
}

Dries's avatar
 
Dries committed
721
/**
Dries's avatar
Dries committed
722
 * Menu callback; displays all the items aggregated in a particular category.
Dries's avatar
 
Dries committed
723
 */
724
function aggregator_page_category() {
Dries's avatar
 
Dries committed
725
  $category = db_fetch_object(db_query('SELECT cid, title FROM {aggregator_category} WHERE cid = %d', arg(2)));
Dries's avatar
 
Dries committed
726

727
  _aggregator_page_list('SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_category_item} c LEFT JOIN {aggregator_item} i ON c.iid = i.iid LEFT JOIN {aggregator_feed} f ON i.fid = f.fid WHERE cid = '. $category->cid .' ORDER BY timestamp DESC, iid DESC', arg(3));
Dries's avatar
 
Dries committed
728
}
Dries's avatar
 
Dries committed
729

Dries's avatar
 
Dries committed
730 731 732 733
/**
 * Prints an aggregator page listing a number of feed items. Various
 * menu callbacks use this function to print their feeds.
 */
Dries's avatar
 
Dries committed
734
function _aggregator_page_list($sql, $op, $header = '') {
Dries's avatar
 
Dries committed
735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753
  if (user_access('administer news feeds') && $op == 'categorize') {
    if ($edit = $_POST['edit']) {
      foreach ($edit['categories'] as $iid => $selection) {
        db_query('DELETE FROM {aggregator_category_item} WHERE iid = %d', $iid);
        foreach ($selection as $cid) {
          if ($cid) {
            db_query('INSERT INTO {aggregator_category_item} (cid, iid) VALUES (%d, %d)', $cid, $iid);
          }
        }
      }
      $links[] = l(t('categorize news items'), $_GET['q']);
    }
    else {
      $categorize = true;
    }
  }
  if (user_access('administer news feeds') && $op != 'categorize') {
    $links[] = l(t('categorize news items'), $_GET['q'] .'/categorize');
  }
Dries's avatar
 
Dries committed
754

Dries's avatar
 
Dries committed
755 756 757 758 759 760 761
  $output = '<div id="aggregator">';
  if ($header) {
    $output .= $header;
  }
  if ($links) {
    $output .= theme('links', $links);
  }
Dries's avatar
 
Dries committed
762 763 764

  $result = pager_query($sql, 20);

Dries's avatar
 
Dries committed
765 766
  $rows = array();
  $categories = array();
Dries's avatar
 
Dries committed
767
  while ($item = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793
    if ($categorize) {
      $categories_result = db_query('SELECT c.cid, c.title, ci.iid FROM {aggregator_category} c LEFT JOIN {aggregator_category_item} ci ON c.cid = ci.cid AND ci.iid = %d', $item->iid);
      if (variable_get('aggregator_category_selector', 'check') == 'select') {
        $selected = array();
        while ($category = db_fetch_object($categories_result)) {
          if (!$done) {
            $categories[$category->cid] = check_form($category->title);
          }
          if ($category->iid) {
            $selected[] = $category->cid;
          }
        }
        $done = true;
        $form = form_select(NULL, 'categories]['. $item->iid, $selected, $categories, NULL, 'size="10"', true);
      }
      else {
        $form = '';
        while ($category = db_fetch_object($categories_result)) {
          $form .= form_checkbox(check_form($category->title), 'categories]['. $item->iid .'][', $category->cid, !is_null($category->iid));
        }
      }
      $rows[] = array(theme('aggregator_page_item', $item), array('data' => $form, 'class' => 'categorize-item'));
    }
    else {
      $output .= theme('aggregator_page_item', $item);
    }
Dries's avatar
 
Dries committed
794
  }
Dries's avatar
 
Dries committed
795 796 797 798
  if ($categorize) {
    $output .= form(theme('table', array('', t('categorize')), $rows) . form_submit(t('Save categories')));
  }
  $output .= '</div>';
Dries's avatar
 
Dries committed
799 800 801 802 803

  if ($pager = theme('pager', NULL, 20, 0)) {
    $output .= $pager;
  }

Dries's avatar
 
Dries committed
804
  print theme('page', $output);
Dries's avatar
 
Dries committed
805 806
}

Dries's avatar
 
Dries committed
807
/**
Dries's avatar
Dries committed
808
 * Menu callback; displays all the feeds used by the aggregator.
Dries's avatar
 
Dries committed
809
 */
Kjartan's avatar
Kjartan committed
810
function aggregator_page_sources() {
Dries's avatar
 
Dries committed
811 812
  $result = db_query('SELECT f.fid, f.title, f.description, f.image, MAX(i.timestamp) AS last FROM {aggregator_feed} f LEFT JOIN {aggregator_item} i ON f.fid = i.fid GROUP BY fid');
  $output = '<div id="aggregator">';
Dries's avatar
 
Dries committed
813
  while ($feed = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
814 815 816 817 818 819 820 821 822 823 824 825
    $output .= "<h2>$feed->title</h2>";

    // Most recent items:
    $list = array();
    if (variable_get('aggregator_summary_items', 3)) {
      $items = db_query_range('SELECT i.title, i.timestamp, i.link FROM {aggregator_item} i WHERE i.fid = %d ORDER BY i.timestamp DESC', $feed->fid, 0, variable_get('aggregator_summary_items', 3));
      while ($item = db_fetch_object($items)) {
        $list[] = '<a href="'. check_url($item->link) .'">'. $item->title .'</a> <span class="age">'. t('%age old', array('%age' => format_interval(time() - $item->timestamp))) .'</span>';
      }
    }
    $output .= theme('item_list', $list);
    $output .= '<div class="more-link">'. l(t('more'), 'aggregator/sources/'. $feed->fid) .'</div>';
Dries's avatar
 
Dries committed
826
  }
Dries's avatar
 
Dries committed
827
  $output .= theme('xml_icon', url('aggregator/opml'));
Dries's avatar
 
Dries committed
828 829
  $output .= '</div>';
  print theme('page', $output);
Dries's avatar
 
Dries committed
830 831
}

Dries's avatar
 
Dries committed
832
/**