aggregator.module 53.8 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
7
8
/**
 * @file
 * Used to aggregate syndicated content (RSS and RDF).
 */

Dries's avatar
   
Dries committed
9
10
11
/**
 * Implementation of hook_help().
 */
Dries's avatar
   
Dries committed
12
function aggregator_help($section) {
Dries's avatar
   
Dries committed
13
  switch ($section) {
Kjartan's avatar
Kjartan committed
14
    case 'admin/help#aggregator':
Dries's avatar
   
Dries committed
15
      return t('
Dries's avatar
   
Dries committed
16
17
18
19
20
21
22
      <p>Thousands of sites (particularly news sites and weblogs) publish their latest headlines and/or stories in a machine-readable format so that other sites can easily link to them. This content is usually in the form of an <a href="http://blogs.law.harvard.edu/tech/rss">RSS</a> feed (which is an XML-based syndication standard).</p>
      <p>You can read aggregated content from many sites using RSS feed readers, such as <a href="http://www.disobey.com/amphetadesk/">Amphetadesk</a>.</p>
      <p>Drupal provides the means to aggregate feeds from many sites and display these aggregated feeds to your site\'s visitors. To do this, enable the aggregator module in site administration and then go to the aggregator configuration page, where you can subscribe to feeds and set up other options.</p>
      <h3>How do I find RSS feeds to aggregate?</h3>
      <p>Many web sites (especially weblogs) display small XML icons or other obvious links on their home page. You can follow these to obtain the web address for the RSS feed. Common extensions for RSS feeds are .rss, .xml and .rdf. For example: <a href="http://slashdot.org/slashdot.rdf">Slashdot RSS</a>.</p>
      <p>If you can\'t find a feed for a site, or you want to find several feeds on a given topic, try an RSS syndication directory such as <a href="http://www.syndic8.com/">Syndic8</a>.</p>
      <p>To learn 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> articles.</p>
Dries's avatar
   
Dries committed
23
      <p>NOTE: Enable your site\'s XML syndication button by turning on the Syndicate block in block management.</p>
Dries's avatar
   
Dries committed
24
      <h3>How do I add a news feed?</h3>
Dries's avatar
   
Dries committed
25
26
      <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
27
      <ul>
Dries's avatar
   
Dries committed
28
29
30
       <li><strong>Title</strong> -- The text entered here will be used in your news aggregator, within the administration configuration section, and as a 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 web address for the feed you wish to subscribe to.</li>
       <li><strong>Update interval</strong> -- This is how often Drupal will scan the feed for new content. This defaults to every hour. Checking a feed more frequently that this is typically a waste of bandwidth and is considered somewhat impolite. For automatic updates to work, cron.php must be called regularly. If it is not, you\'ll have to manually update the feeds one at a time within the news aggregation administration page by using <a href="%update-items">update items</a>.</li>
Dries's avatar
Dries committed
31
       <li><strong>Categorize news items</strong> -- As items are received from a feed they will be put in any categories you have selected here.</li>
Dries's avatar
   
Dries committed
32
      </ul>
Dries's avatar
   
Dries committed
33
      <p>Once you have submitted the new feed, check to make sure it is working properly by selecting <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
34
      <h3>Adding categories</h3>
Dries's avatar
   
Dries committed
35
      <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
36
      <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
37
      <ul>
Dries's avatar
   
Dries committed
38
       <li><strong>Title</strong> -- The title will be used in the <em>news by topics</em> listing in your news aggregator and for the block created for the bundle.</li>
Dries's avatar
   
Dries committed
39
       <li><strong>Description</strong> -- A short description of the category to tell users more details about what news items they might find in the category.</li>
Dries's avatar
   
Dries committed
40
41
42
43
      </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
44
45
46
       <li><strong><a href="%news-aggregator">News aggregator</a></strong> (latest news) -- Displays all incoming items in the order in which they were received.</li>
       <li><strong><a href="%sources">Sources</a></strong> -- Organizes incoming content by feed, displaying feed titles (each of which links to a page with the latest items from that feed) and item titles (which link to that item\'s actual story/article).</li>
       <li><strong><a href="%categories">Categories</a></strong> -- Organizes incoming content by category, displaying category titles (each of which links to a page with the latest items from that category) and item titles (which link to that item\'s actual story/article).</li>
Dries's avatar
   
Dries committed
47
      </ul>
Dries's avatar
   
Dries committed
48
      <p>Pages that display items (for sources, categories, etc.) display the following for each item:
Dries's avatar
   
Dries committed
49
      <ul>
Dries's avatar
   
Dries committed
50
51
52
53
       <li>The title of the item (its headline).</li>
       <li>The categories that the item belongs to, each of which links to that particular category page as detailed above.</li>
       <li>A description containing the first few paragraphs or a summary of the item (if available).</li>
       <li>The name of the feed, which links to the individual feed\'s page, listing information about that feed and items for that feed only. This is not shown on feed pages (they would link to the page you\'re currently on).</li>
Dries's avatar
   
Dries committed
54
      </ul>
Dries's avatar
   
Dries committed
55
      <p>Additionally, users with the <em>administer news feeds permission</em> will see a link to categorize the news items. Clicking this will allow them to select which category(s) each news item is in.</p>
Dries's avatar
   
Dries committed
56
      <h3>Technical details</h3>
Dries's avatar
   
Dries committed
57
      <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
58
      <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
59
60
      <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':
61
      return t('Aggregates syndicated content (RSS and RDF feeds).');
Dries's avatar
   
Dries committed
62
    case 'admin/aggregator':
63
      return t('<p>Thousands of sites (particularly news sites and weblogs) publish their latest headlines and/or stories in a machine-readable format so that other sites can easily link to them. This content is usually in the form of an <a href="http://blogs.law.harvard.edu/tech/rss">RSS</a> feed (which is an XML-based syndication standard). To display the feed or category in a block you must decide how many items to show by editing the feed or block and turning on the <a href="%block">feed\'s block</a>.</p>', array('%block' => url('admin/block')));
Dries's avatar
   
Dries committed
64
    case 'admin/aggregator/add/feed':
65
      return t('<p>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" on a regular basis. 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.</p>');
Dries's avatar
   
Dries committed
66
    case 'admin/aggregator/add/category':
67
      return t('<p>Categories provide a way to group items from different news feeds together. Each news category has its own feed page and block. For example, you could tag various sport-related feeds as belonging to a category called <em>Sports</em>. News items can be added to a category automatically by setting a feed to automatically place its item into that category, or by using the categorize items link in any listing of news items.</p>');
Dries's avatar
   
Dries committed
68
  }
69
70
}

71
function aggregator_settings() {
72
  $items = array(0 => t('none')) + drupal_map_assoc(array(3, 5, 10, 15, 20, 25), '_aggregator_items');
73
  $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200, 4838400, 9676800), 'format_interval');
Dries's avatar
   
Dries committed
74

75
  $output = '';
76
  $output .= form_textfield(t('Allowed HTML tags'), 'aggregator_allowed_html_tags', variable_get('aggregator_allowed_html_tags', '<a> <b> <br> <dd> <dl> <dt> <em> <i> <li> <ol> <p> <strong> <u> <ul>'), 80, 255, t('The list of tags which are allowed in feeds, i.e., which will not be removed by Drupal.'));
Dries's avatar
   
Dries committed
77
  $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.'));
78
  $output .= form_select(t('Discard news items older than'), 'aggregator_clear', variable_get('aggregator_clear', 9676800), $period, t('Older news items will be automatically discarded.  Requires crontab.'));
Dries's avatar
   
Dries committed
79
  $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.'));
80
  return $output;
Dries's avatar
   
Dries committed
81
82
}

83
84
85
86
87
88
89
/**
 * Helper function for drupal_map_assoc.
 */
function _aggregator_items($count) {
  return format_plural($count, '1 item', '%count items');
}

Dries's avatar
   
Dries committed
90
91
92
/**
 * Implementation of hook_perm().
 */
Kjartan's avatar
Kjartan committed
93
function aggregator_perm() {
Dries's avatar
   
Dries committed
94
  return array('administer news feeds', 'access news feeds');
Dries's avatar
   
Dries committed
95
96
}

Dries's avatar
   
Dries committed
97
98
99
/**
 * Implementation of hook_menu().
 */
Dries's avatar
   
Dries committed
100
function aggregator_menu($may_cache) {
Dries's avatar
   
Dries committed
101
  $items = array();
102
103
  $edit = user_access('administer news feeds');
  $view = user_access('access news feeds');
Dries's avatar
   
Dries committed
104

Dries's avatar
   
Dries committed
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
  if ($may_cache) {
    $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);

    $items[] = array('path' => 'admin/aggregator/list', 'title' => t('list'),
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
    $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' => '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);
138
139
140
141
    $items[] = array('path' => 'aggregator/rss', 'title' => t('RSS feed'),
      'callback' => 'aggregator_page_rss', 'access' => $view,
      'type' => MENU_CALLBACK);
    $items[] = array('path' => 'aggregator/opml', 'title' => t('OPML feed'),
Dries's avatar
   
Dries committed
142
143
144
      'callback' => 'aggregator_page_opml', 'access' => $view,
      'type' => MENU_CALLBACK);
  }
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
  else {
    if (arg(0) == 'aggregator' && is_numeric(arg(2))) {
      if (arg(1) == 'sources') {
        $feed = db_fetch_object(db_query('SELECT title, fid FROM {aggregator_feed} WHERE fid = %d', arg(2)));
        if ($feed) {
          $items[] = array('path' => 'aggregator/sources/'. $feed->fid, 'title' => $feed->title,
                           'callback' => 'aggregator_page_source', 'access' => $view);
          $items[] = array('path' => 'aggregator/sources/'. $feed->fid .'/view', 'title' => t('view'),
                           'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
          $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);
        }
      }
      else if (arg(1) == 'categories') {
        $category = db_fetch_object(db_query('SELECT title, cid FROM {aggregator_category} WHERE cid = %d', arg(2)));
        if ($category) {
          $items[] = array('path' => 'aggregator/categories/'. $category->cid, 'title' => $category->title,
                           'callback' => 'aggregator_page_category', 'access' => $view);
          $items[] = array('path' => 'aggregator/categories/'. $category->cid .'/view', 'title' => t('view'),
                           'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
          $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);
        }
      }
    }
  }
Dries's avatar
   
Dries committed
181
182

  return $items;
183
184
}

Dries's avatar
   
Dries committed
185
186
187
188
189
/**
 * Implementation of hook_cron().
 *
 * Checks news feeds for updates once their refresh interval has elapsed.
 */
Dries's avatar
   
Dries committed
190
function aggregator_cron() {
Dries's avatar
   
Dries committed
191
  $result = db_query('SELECT * FROM {aggregator_feed} WHERE checked + refresh < %d', time());
Dries's avatar
   
Dries committed
192
193
  while ($feed = db_fetch_array($result)) {
    aggregator_refresh($feed);
Dries's avatar
   
Dries committed
194
195
196
  }
}

Dries's avatar
   
Dries committed
197
198
199
200
201
/**
 * Implementation of hook_block().
 *
 * Generates blocks for the latest news items in each category and feed.
 */
Dries's avatar
Dries committed
202
function aggregator_block($op, $delta = 0, $edit = array()) {
Dries's avatar
   
Dries committed
203
  if (user_access('access news feeds')) {
Dries's avatar
   
Dries committed
204
    if ($op == 'list') {
Dries's avatar
Dries committed
205
      $result = db_query('SELECT cid, title FROM {aggregator_category} ORDER BY title');
Dries's avatar
   
Dries committed
206
      while ($category = db_fetch_object($result)) {
207
        $block['category-'. $category->cid]['info'] = t('%title category latest items', array('%title' => theme('placeholder', $category->title)));
Kjartan's avatar
Kjartan committed
208
      }
Dries's avatar
Dries committed
209
      $result = db_query('SELECT fid, title FROM {aggregator_feed} ORDER BY fid');
Kjartan's avatar
Kjartan committed
210
      while ($feed = db_fetch_object($result)) {
211
        $block['feed-'. $feed->fid]['info'] = t('%title feed latest items', array('%title' => theme('placeholder', $feed->title)));
Kjartan's avatar
Kjartan committed
212
      }
Dries's avatar
   
Dries committed
213
    }
Dries's avatar
Dries committed
214
    else if ($op == 'configure') {
215
      list($type, $id) = explode('-', $delta);
Dries's avatar
Dries committed
216
217
218
219
220
221
222
223
224
225
226
      if ($type == 'category') {
        $value = db_result(db_query('SELECT block FROM {aggregator_category} WHERE cid = %d', $id));
      }
      else {
        $value = db_result(db_query('SELECT block FROM {aggregator_feed} WHERE fid = %d', $id));
      }

      $output = form_select(t('Number of news items in block'), 'block', $value, drupal_map_assoc(array(2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)));
      return $output;
    }
    else if ($op == 'save') {
227
      list($type, $id) = explode('-', $delta);
Dries's avatar
Dries committed
228
229
230
231
232
233
234
      if ($type == 'category') {
        $value = db_query('UPDATE {aggregator_category} SET block = %d WHERE cid = %d', $edit['block'], $id);
      }
      else {
        $value = db_query('UPDATE {aggregator_feed} SET block = %d WHERE fid = %d', $edit['block'], $id);
      }
    }
235
    else if ($op == 'view') {
236
      list($type, $id) = explode('-', $delta);
Kjartan's avatar
Kjartan committed
237
      switch ($type) {
Dries's avatar
   
Dries committed
238
        case 'feed':
239
          if ($feed = db_fetch_object(db_query('SELECT fid, title, block FROM {aggregator_feed} WHERE fid = %d', $id))) {
240
            $block['subject'] = check_plain($feed->title);
241
242
243
            $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
244
          break;
245

Dries's avatar
   
Dries committed
246
        case 'category':
247
          if ($category = db_fetch_object(db_query('SELECT cid, title, block FROM {aggregator_category} WHERE cid = %d', $id))) {
248
            $block['subject'] = check_plain($category->title);
249
250
251
            $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
252
253
          break;
      }
Dries's avatar
   
Dries committed
254
255
      $items = array();
      while ($item = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
256
        $items[] = theme('aggregator_block_item', $item);
Dries's avatar
   
Dries committed
257
      }
Dries's avatar
   
Dries committed
258
      $block['content'] = theme('item_list', $items) . $block['content'];
Dries's avatar
   
Dries committed
259
    }
Dries's avatar
   
Dries committed
260
    return $block;
Dries's avatar
   
Dries committed
261
  }
Dries's avatar
   
Dries committed
262
263
}

Dries's avatar
   
Dries committed
264
265
266
267
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
268
  }
Dries's avatar
   
Dries committed
269
270
  if ($items) {
    db_query('DELETE FROM {aggregator_category_item} WHERE '. implode(' OR ', $items));
Dries's avatar
   
Dries committed
271
  }
Dries's avatar
   
Dries committed
272
  db_query('DELETE FROM {aggregator_item} WHERE fid = %d', $feed['fid']);
Kjartan's avatar
Kjartan committed
273
  db_query("UPDATE {aggregator_feed} SET checked = 0, etag = '', modified = 0 WHERE fid = %d", $feed['fid']);
274
  drupal_set_message(t('The news items from %site have been removed.', array('%site' => theme('placeholder', $feed['title']))));
Dries's avatar
   
Dries committed
275
276
}

Dries's avatar
   
Dries committed
277
278
279
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
280
function aggregator_element_start($parser, $name, $attributes) {
281
  global $item, $element, $tag, $items, $channel;
Dries's avatar
   
Dries committed
282
283

  switch ($name) {
Dries's avatar
   
Dries committed
284
285
    case 'IMAGE':
    case 'TEXTINPUT':
286
287
288
289
290
291
    case 'CONTENT':
    case 'SUMMARY':
    case 'TAGLINE':
    case 'SUBTITLE':
    case 'LOGO':
    case 'INFO':
Dries's avatar
   
Dries committed
292
293
      $element = $name;
      break;
294
295
296
297
    case 'ID':
      if ($element != 'ITEM') {
        $element = $name;
      }
298
299
300
301
302
303
304
305
306
307
    case 'LINK':
      if ($attributes['REL'] == 'alternate') {
        if ($element == 'ITEM') {
          $items[$item]['LINK'] = $attributes['HREF'];
        }
        else {
          $channel['LINK'] = $attributes['HREF'];
        }
      }
      break;
Dries's avatar
   
Dries committed
308
    case 'ITEM':
Dries's avatar
   
Dries committed
309
310
      $element = $name;
      $item += 1;
311
312
313
314
315
      break;
    case 'ENTRY':
      $element = 'ITEM';
      $item += 1;
      break;
316
317
318
319
320
  }

  $tag = $name;
}

Dries's avatar
   
Dries committed
321
322
323
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
324
function aggregator_element_end($parser, $name) {
Dries's avatar
   
Dries committed
325
326
  global $element;

Dries's avatar
   
Dries committed
327
  switch ($name) {
Dries's avatar
   
Dries committed
328
329
330
    case 'IMAGE':
    case 'TEXTINPUT':
    case 'ITEM':
331
332
333
    case 'ENTRY':
    case 'CONTENT':
    case 'INFO':
334
335
      $element = '';
      break;
336
    case 'ID':
337
      if ($element == 'ID') {
Dries's avatar
   
Dries committed
338
      $element = '';
Dries's avatar
   
Dries committed
339
  }
340
}
341
}
342

Dries's avatar
   
Dries committed
343
344
345
/**
 * Call-back function used by the XML parser.
 */
Kjartan's avatar
Kjartan committed
346
function aggregator_element_data($parser, $data) {
Dries's avatar
   
Dries committed
347
  global $channel, $element, $items, $item, $image, $tag;
Dries's avatar
   
Dries committed
348
349

  switch ($element) {
Dries's avatar
   
Dries committed
350
    case 'ITEM':
Dries's avatar
   
Dries committed
351
352
      $items[$item][$tag] .= $data;
      break;
Dries's avatar
   
Dries committed
353
    case 'IMAGE':
354
    case 'LOGO':
Dries's avatar
   
Dries committed
355
356
      $image[$tag] .= $data;
      break;
357
358
359
360
361
362
    case 'LINK':
      if ($data) {
        $items[$item][$tag] .= $data;
      }
      break;
    case 'CONTENT':
363
      $items[$item]['CONTENT'] .= $data;
364
365
      break;
    case 'SUMMARY':
366
      $items[$item]['SUMMARY'] .= $data;
367
368
369
370
371
372
373
      break;
    case 'TAGLINE':
    case 'SUBTITLE':
      $channel['DESCRIPTION'] .= $data;
      break;
    case 'INFO':
    case 'ID':
Dries's avatar
   
Dries committed
374
375
376
    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
377
378
379
      break;
    default:
      $channel[$tag] .= $data;
380
381
382
  }
}

Dries's avatar
   
Dries committed
383
384
385
/**
 * Checks a news feed for new items.
 */
Kjartan's avatar
Kjartan committed
386
function aggregator_refresh($feed) {
Dries's avatar
   
Dries committed
387
388
  global $channel, $image;

Dries's avatar
   
Dries committed
389
390
391
392
393
394
  // Generate conditional GET headers.
  $headers = array();
  if ($feed['etag']) {
    $headers['If-None-Match'] = $feed['etag'];
  }
  if ($feed['modified']) {
Dries's avatar
   
Dries committed
395
    $headers['If-Modified-Since'] = gmdate('D, d M Y H:i:s', $feed['modified']) .' GMT';
Dries's avatar
   
Dries committed
396
397
398
399
400
  }

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

401
  // Process HTTP response code.
Dries's avatar
   
Dries committed
402
403
  switch ($result->code) {
    case 304:
Dries's avatar
   
Dries committed
404
      db_query('UPDATE {aggregator_feed} SET checked = %d WHERE fid = %d', time(), $feed['fid']);
405
      drupal_set_message(t('There is no new syndicated content from %site.', array('%site' => theme('placeholder', $feed['title']))));
Dries's avatar
   
Dries committed
406
      break;
Dries's avatar
   
Dries committed
407
408
    case 301:
      $feed['url'] = $result->redirect_url;
409
      watchdog('aggregator', t('Updated URL for feed %title to %url.', array('%title' => theme('placeholder', $feed['title']), '%url' => theme('placeholder', $feed['url']))));
410
411
      break;

Dries's avatar
   
Dries committed
412
413
414
415
    case 200:
    case 302:
    case 307:
      // Filter the input data:
416
     if (aggregator_parse_feed($result->data, $feed)) {
417

Dries's avatar
   
Dries committed
418
419
420
        if ($result->headers['Last-Modified']) {
          $modified = strtotime($result->headers['Last-Modified']);
        }
Dries's avatar
Dries committed
421

422
423
424
425
426
427
428
429
        /*
        ** Prepare the channel data:
        */

        foreach ($channel as $key => $value) {
          $channel[$key] = trim(strip_tags($value));
        }

Dries's avatar
   
Dries committed
430
431
432
        /*
        ** Prepare the image data (if any):
        */
Dries's avatar
   
Dries committed
433

Dries's avatar
   
Dries committed
434
435
436
        foreach ($image as $key => $value) {
          $image[$key] = trim($value);
        }
Dries's avatar
   
Dries committed
437

Dries's avatar
   
Dries committed
438
        if ($image['LINK'] && $image['URL'] && $image['TITLE']) {
Dries's avatar
   
Dries committed
439
          $image = '<a href="'. $image['LINK'] .'"><img src="'. $image['URL'] .'" alt="'. $image['TITLE'] .'" /></a>';
Dries's avatar
   
Dries committed
440
        }
Dries's avatar
   
Dries committed
441
442
443
        else {
          $image = NULL;
        }
Dries's avatar
   
Dries committed
444

Dries's avatar
   
Dries committed
445
446
447
        /*
        ** Update the feed data:
        */
Dries's avatar
   
Dries committed
448

449
        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(), $channel['LINK'], $channel['DESCRIPTION'], $image, $result->headers['ETag'], $modified, $feed['fid']);
Dries's avatar
   
Dries committed
450

Dries's avatar
   
Dries committed
451
452
453
        /*
        ** Clear the cache:
        */
Dries's avatar
   
Dries committed
454

Dries's avatar
   
Dries committed
455
        cache_clear_all();
Dries's avatar
   
Dries committed
456

457
458
        watchdog('aggregator', t('There is new syndicated content from %site.', array('%site' => theme('placeholder', $feed[title]))));
        drupal_set_message(t('There is new syndicated content from %site.', array('%site' => theme('placeholder', $feed[title]))));
Dries's avatar
   
Dries committed
459
460
      }
      break;
Dries's avatar
   
Dries committed
461
    default:
462
463
      watchdog('aggregator', t('The RSS-feed from %site seems to be broken, due to "%error".', array('%site' => theme('placeholder', $feed['title']), '%error' => theme('placeholder', $result->code .' '. $result->error))), WATCHDOG_WARNING);
      drupal_set_message(t('The RSS-feed from %site seems to be broken, because of error "%error".', array('%site' => theme('placeholder', $feed['title']), '%error' => theme('placeholder', $result->code .' '. $result->error))));
Dries's avatar
   
Dries committed
464
  }
Dries's avatar
   
Dries committed
465
}
Dries's avatar
   
Dries committed
466

Dries's avatar
   
Dries committed
467
468
469
470
/**
 * 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.
471
 * Originally from MagpieRSS (http://magpierss.sourceforge.net/).
Dries's avatar
   
Dries committed
472
473
 *
 * @param $date_str A string with a potentially W3C DTF date.
474
 * @return A timestamp if parsed successfully or -1 if not.
Dries's avatar
   
Dries committed
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
 */
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
504
function aggregator_parse_feed(&$data, $feed) {
Dries's avatar
   
Dries committed
505
  global $items, $image, $channel;
Dries's avatar
   
Dries committed
506

Dries's avatar
   
Dries committed
507
  // Unset the global variables before we use them:
Dries's avatar
   
Dries committed
508
  unset($GLOBALS['element'], $GLOBALS['item'], $GLOBALS['tag']);
Dries's avatar
   
Dries committed
509
  $items = array();
Dries's avatar
   
Dries committed
510
  $image = array();
Dries's avatar
   
Dries committed
511
  $channel = array();
512

Dries's avatar
   
Dries committed
513
514
  // parse the data:
  $xml_parser = drupal_xml_parser_create($data);
Dries's avatar
   
Dries committed
515
516
  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
517

Dries's avatar
   
Dries committed
518
  if (!xml_parse($xml_parser, $data, 1)) {
519
520
    watchdog('aggregator', t('The RSS-feed from %site seems to be broken, due to an error "%error" on line %line.', array('%site' => theme('placeholder', $feed['title']), '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))), WATCHDOG_WARNING);
    drupal_set_message(t('The RSS-feed from %site seems to be broken, because of error "%error" on line %line.', array('%site' => theme('placeholder', $feed['title']), '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))), 'error');
Dries's avatar
   
Dries committed
521
    return 0;
Dries's avatar
   
Dries committed
522
523
  }
  xml_parser_free($xml_parser);
Dries's avatar
   
Dries committed
524

Dries's avatar
   
Dries committed
525
526
527
528
529
  /*
  ** 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
530

Dries's avatar
   
Dries committed
531
  $items = array_reverse($items);
Dries's avatar
   
Dries committed
532

Dries's avatar
   
Dries committed
533
534
  foreach ($items as $item) {
    unset($title, $link, $author, $description);
535

Dries's avatar
   
Dries committed
536
537
    // Prepare the item:
    foreach ($item as $key => $value) {
538
      $value = decode_entities(trim($value));
539
      $value = strip_tags($value, variable_get('aggregator_allowed_html_tags', '<a> <b> <br> <dd> <dl> <dt> <em> <i> <li> <ol> <p> <strong> <u> <ul>'));
540
541
542
      $value = preg_replace('/\Wstyle\s*=[^>]+?>/i', '>', $value);
      $value = preg_replace('/\Won[a-z]+\s*=[^>]+?>/i', '>', $value);
      $item[$key] = $value;
Dries's avatar
   
Dries committed
543
    }
Dries's avatar
   
Dries committed
544
545
546
547
548
549
    /*
    ** 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
550
551
    if ($item['TITLE']) {
      $title = $item['TITLE'];
Dries's avatar
   
Dries committed
552
553
    }
    else {
Dries's avatar
   
Dries committed
554
      $title = preg_replace('/^(.*)[^\w;&].*?$/', "\\1", truncate_utf8($item['DESCRIPTION'], 40));
Dries's avatar
   
Dries committed
555
    }
Dries's avatar
   
Dries committed
556

Dries's avatar
   
Dries committed
557
558
559
560
    /*
    ** Resolve the items link.
    */

Dries's avatar
   
Dries committed
561
562
    if ($item['LINK']) {
      $link = $item['LINK'];
Dries's avatar
   
Dries committed
563
    }
Dries's avatar
   
Dries committed
564
565
    elseif ($item['GUID'] && (strncmp($item['GUID'], 'http://', 7) == 0)) {
      $link = $item['GUID'];
Dries's avatar
   
Dries committed
566
567
    }
    else {
Dries's avatar
   
Dries committed
568
      $link = $feed['link'];
Dries's avatar
   
Dries committed
569
    }
570

571
572
573
574
575
576
577
578
579
580
    /**
     * Atom feeds have a CONTENT and/or SUMMARY tag instead of a DESCRIPTION tag
     */
    if ($item['CONTENT']) {
      $item['DESCRIPTION'] = $item['CONTENT'];
    }
    else if ($item['SUMMARY']) {
      $item['DESCRIPTION'] = $item['SUMMARY'];
    }

Dries's avatar
   
Dries committed
581
582
583
584
585
586
587
588
589
590
    /*
    ** 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
591
    else $date = 'now';
Dries's avatar
   
Dries committed
592

Dries's avatar
   
Dries committed
593
    $timestamp = strtotime($date); // strtotime() returns -1 on failure
Dries's avatar
   
Dries committed
594
    if ($timestamp < 0) {
Dries's avatar
   
Dries committed
595
596
597
598
      $timestamp = aggregator_parse_w3cdtf($date); // also returns -1 on failure
      if ($timestamp < 0) {
        $timestamp = time(); // better than nothing
      }
599
    }
Dries's avatar
   
Dries committed
600
601

    /*
Dries's avatar
   
Dries committed
602
603
604
    ** 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
605
606
    */

Dries's avatar
   
Dries committed
607
608
    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
609
610
    }
    else {
Dries's avatar
   
Dries committed
611
      $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
612
    }
Dries's avatar
   
Dries committed
613

614
    if (!valid_input_data($item['DESCRIPTION'])) {
615
      drupal_set_message(t('The RSS feed from %site seems to be broken, because of suspicious input data.', array('%site' => theme('placeholder', $feed['title']))), 'error');
616
617
618
619
    }
    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
620
  }
Dries's avatar
   
Dries committed
621

Dries's avatar
   
Dries committed
622
  /*
623
  ** Remove all items that are older than flush item timer:
Dries's avatar
   
Dries committed
624
  */
Dries's avatar
   
Dries committed
625

626
  $age = time() - variable_get('aggregator_clear', 9676800);
Dries's avatar
   
Dries committed
627
  $result = db_query('SELECT iid FROM {aggregator_item} WHERE fid = %d AND timestamp < %d', $feed['fid'], $age);
Dries's avatar
   
Dries committed
628

629
630
631
632
633
634
635
  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
636
  }
Dries's avatar
   
Dries committed
637
638

  return 1;
639
640
}

Kjartan's avatar
Kjartan committed
641
function aggregator_save_item($edit) {
Dries's avatar
   
Dries committed
642
  if ($edit['iid'] && $edit['title']) {
Dries's avatar
   
Dries committed
643
    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']);
644
  }
Dries's avatar
   
Dries committed
645
646
647
  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']);
648
  }
Dries's avatar
   
Dries committed
649
  else if ($edit['title'] && $edit['link']) {
Dries's avatar
   
Dries committed
650
651
    $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
652
653
654
    // 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
655
      db_query('INSERT INTO {aggregator_category_item} (cid, iid) VALUES (%d, %d)', $category->cid, $edit['iid']);
Dries's avatar
   
Dries committed
656
    }
657
658
659
  }
}

Dries's avatar
   
Dries committed
660
function aggregator_form_category($edit = array()) {
661
  $form  = form_textfield(t('Title'), 'title', $edit['title'], 60, 64);
Dries's avatar
   
Dries committed
662
663
  $form .= form_textarea(t('Description'), 'description', $edit['description'], 60, 5);
  $form .= form_submit(t('Submit'));
664

Dries's avatar
   
Dries committed
665
666
667
  if ($edit['cid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('cid', $edit['cid']);
668
669
  }

Dries's avatar
   
Dries committed
670
  return form($form);
671
672
}

Dries's avatar
   
Dries committed
673
674
function aggregator_save_category($edit) {
  if ($edit['cid'] && $edit['title']) {
Dries's avatar
Dries committed
675
    db_query('UPDATE {aggregator_category} SET title = \'%s\', description = \'%s\' WHERE cid = %d', $edit['title'], $edit['description'], $edit['cid']);
676
  }
Dries's avatar
   
Dries committed
677
678
  else if ($edit['cid']) {
    db_query('DELETE FROM {aggregator_category} WHERE cid = %d', $edit['cid']);
679
  }
Dries's avatar
   
Dries committed
680
  else if ($edit['title']) {
Dries's avatar
   
Dries committed
681
    // a single unique id for bundles and feeds, to use in blocks
Dries's avatar
   
Dries committed
682
    $next_id = db_next_id('{aggregator_category}_cid');
Dries's avatar
Dries committed
683
    db_query('INSERT INTO {aggregator_category} (cid, title, description, block) VALUES (%d, \'%s\', \'%s\', 5)', $next_id, $edit['title'], $edit['description']);
684
685
686
  }
}

Kjartan's avatar
Kjartan committed
687
function aggregator_form_feed($edit = array()) {
Dries's avatar
   
Dries committed
688
  $period = drupal_map_assoc(array(900, 1800, 3600, 7200, 10800, 21600, 32400, 43200, 64800, 86400, 172800, 259200, 604800, 1209600, 2419200), 'format_interval');
689

Dries's avatar
   
Dries committed
690
691
  if ($edit['refresh'] == '') {
    $edit['refresh'] = 3600;
Dries's avatar
   
Dries committed
692
  }
Dries's avatar
   
Dries committed
693

694
695
  $form .= form_textfield(t('Title'), 'title', $edit['title'], 60, 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'], 60, 255, t('The fully-qualified URL of the feed.'));
Dries's avatar
   
Dries committed
696
  $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
697
698
699
700

  // Handling of categories:
  $options = array();
  $values = array();
Dries's avatar
   
Dries committed
701
  $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
702
  while ($category = db_fetch_object($categories)) {
Dries's avatar
Dries committed
703
    $options[$category->cid] = $category->title;
704
    if ($category->fid) $values[] = check_plain($category->cid);
Dries's avatar
   
Dries committed
705
  }
Dries's avatar
Dries committed
706
  if ($options) {
707
    $form .= form_checkboxes(t('Categorize news items'), 'category', $values, $options, t('New items in this feed will be automatically filed in the checked categories as they are received.'));
Dries's avatar
   
Dries committed
708
  }
Dries's avatar
   
Dries committed
709

Dries's avatar
Dries committed
710
  // Form buttons:
Dries's avatar
   
Dries committed
711
712
713
714
  $form .= form_submit(t('Submit'));
  if ($edit['fid']) {
    $form .= form_submit(t('Delete'));
    $form .= form_hidden('fid', $edit['fid']);
715
716
  }

Dries's avatar
   
Dries committed
717
  return form($form);
718
719
}

Kjartan's avatar
Kjartan committed
720
function aggregator_save_feed($edit) {
Dries's avatar
   
Dries committed
721
  if ($edit['fid']) {
722
    // an existing feed is being modified, delete the category listings
Dries's avatar
   
Dries committed
723
    db_query('DELETE FROM {aggregator_category_feed} WHERE fid = %d', $edit['fid']);
724
  }
Dries's avatar
   
Dries committed
725
  if ($edit['fid'] && $edit['title']) {
Dries's avatar
Dries committed
726
    db_query('UPDATE {aggregator_feed} SET title = \'%s\', url = \'%s\', refresh = %d WHERE fid = %d', $edit['title'], $edit['url'], $edit['refresh'], $edit['fid']);
727
  }
Dries's avatar
   
Dries committed
728
729
730
731
732
733
734
735
736
737
  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']);
738
  }
Dries's avatar
   
Dries committed
739
740
741
  else if ($edit['title']) {
    // a single unique id for bundles and feeds, to use in blocks
    $edit['fid'] = db_next_id('{aggregator_feed}_fid');
Dries's avatar
Dries committed
742
    db_query('INSERT INTO {aggregator_feed} (fid, title, url, refresh, block) VALUES (%d, \'%s\', \'%s\', %d, 5)', $edit['fid'], $edit['title'], $edit['url'], $edit['refresh']);
Dries's avatar
   
Dries committed
743
744
745
  }
  if ($edit['title']) {
    // the feed is being saved, save the categories as well
Dries's avatar
Dries committed
746
    if ($edit['category']) {
Dries's avatar
Dries committed
747
748
      foreach ($edit['category'] as $cid) {
        db_query('INSERT INTO {aggregator_category_feed} (fid, cid) VALUES (%d, %d)', $edit['fid'], $cid);
Dries's avatar
   
Dries committed
749
750
      }
    }
751
752
753
  }
}

Kjartan's avatar
Kjartan committed
754
function aggregator_get_feed($fid) {
Dries's avatar
   
Dries committed
755
  return db_fetch_array(db_query('SELECT * FROM {aggregator_feed} WHERE fid = %d', $fid));
756
757
}

Dries's avatar
   
Dries committed
758
function aggregator_get_category($cid) {
Dries's avatar
   
Dries committed
759
  return db_fetch_array(db_query('SELECT * FROM {aggregator_category} WHERE cid = %d', $cid));
760
761
}

Kjartan's avatar
Kjartan committed
762
function aggregator_view() {
Dries's avatar
   
Dries committed
763
  $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, f.block ORDER BY f.title');
764

Dries's avatar
   
Dries committed
765
  $output .= '<h3>'. t('Feed overview') .'</h3>';
Dries's avatar
   
Dries committed
766

Dries's avatar
   
Dries committed
767
  $header = array(t('Title'), t('Items'), t('Last update'), t('Next update'), array('data' => t('Operations'), 'colspan' => '3'));
Dries's avatar
   
Dries committed
768
  $rows = array();
769
  while ($feed = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
770
    $rows[] = array(l($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 + $feed->refresh - time()))) : t('never')), l(t('edit'), "admin/aggregator/edit/feed/$feed->fid"), l(t('remove items'), "admin/aggregator/remove/$feed->fid"), l(t('update items'), "admin/aggregator/update/$feed->fid"));
771
  }
Dries's avatar
   
Dries committed
772
  $output .= theme('table', $header, $rows);
773

Dries's avatar
   
Dries committed
774
  $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, c.title ORDER BY title');
775

Dries's avatar
   
Dries committed
776
  $output .= '<h3>'. t('Category overview') .'</h3>';
Dries's avatar
   
Dries committed
777

Dries's avatar
   
Dries committed
778
  $header = array(t('Title'), t('Items'), t('Operations'));
Dries's avatar
   
Dries committed
779
  $rows = array();
Dries's avatar
   
Dries committed
780
  while ($category = db_fetch_object($result)) {
Dries's avatar
   
Dries committed
781
    $rows[] = array(l($category->title, "aggregator/categories/$category->cid"), format_plural($category->items, '1 item', '%count items'), l(t('edit'), "admin/aggregator/edit/category/$category->cid"));
782
  }
Dries's avatar
   
Dries committed
783
  $output .= theme('table', $header, $rows);
784
785
786
787

  return $output;
}

Dries's avatar
   
Dries committed
788
789
790
791
792
793
794
795
796
797
798
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.'));
    }
799

800
    menu_rebuild();
801
    drupal_goto($_GET['q']);
Dries's avatar
   
Dries committed
802
803
804
805
806
807
808
809
810
811
812
813
814
815
  }
  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.'));
    }

816
    menu_rebuild();
817
    drupal_goto('aggregator/'. arg(1));
Dries's avatar
   
Dries committed
818
819
820
821
822
823
824
825
826
  }

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

Dries's avatar
   
Dries committed
827
  return $output;
Dries's avatar
   
Dries committed
828
829
830
}


Dries's avatar
   
Dries committed
831
/**
Dries's avatar
Dries committed
832
 * Menu callback; displays the category edit form, or saves changes and
833
 * redirects to the overview page.
Dries's avatar
   
Dries committed
834
835
836
837
838
839
840
841
842
843
844
 */
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);
845
      drupal_set_message($edit['title'] ? t('The category has been updated.') : t('The category has been removed.'));
846
      menu_rebuild();
847
848
      drupal_goto('admin/aggregator');
      break;
Dries's avatar
   
Dries committed
849
850
851
    default:
      if ($category) {
        $output = aggregator_form_category(aggregator_get_category($category));
Dries's avatar
   
Dries committed
852
853
      }
      else {
Dries's avatar
   
Dries committed
854
        $output = aggregator_form_category();
Dries's avatar
   
Dries committed
855
      }
Dries's avatar
   
Dries committed
856
  }
Dries's avatar
   
Dries committed
857
  return $output;
Dries's avatar
   
Dries committed
858
859
860
}

/**
Dries's avatar
Dries committed
861
862
 * Menu callback; displays the feed edit form.
 *
863
 * After editing, saves changes and redirects to the overview page.
Dries's avatar
   
Dries committed
864
865
866
867
868
869
870
871
872
873
874
 */
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);
875
      drupal_set_message($edit['title'] ? t('The feed has been updated.') : t('The feed has been removed.'));
876
      menu_rebuild();
877
878
      drupal_goto('admin/aggregator');
      break;
Dries's avatar
   
Dries committed
879
880
881
    default:
      if ($feed) {
        $output = aggregator_form_feed(aggregator_get_feed($feed));
Dries's avatar
   
Dries committed
882
883
      }
      else {
Dries's avatar
   
Dries committed
884
        $output = aggregator_form_feed();
Dries's avatar
   
Dries committed
885
      }
886
  }
Dries's avatar
   
Dries committed
887
  return $output;
Dries's avatar
   
Dries committed
888
889
890
}

/**
891
 * Menu callback; removes all items from a feed, then redirects to the overview page.
Dries's avatar
   
Dries committed
892
893
894
 */
function aggregator_admin_remove_feed($feed) {
  aggregator_remove(aggregator_get_feed($feed));
895
  drupal_goto('admin/aggregator');
Dries's avatar
   
Dries committed
896
897
898
}

/**
899
 * Menu callback; refreshes a feed, then redirects to the overview page.
Dries's avatar
   
Dries committed
900
901
902
 */
function aggregator_admin_refresh_feed($feed) {
  aggregator_refresh(aggregator_get_feed($feed));
903
  drupal_goto('admin/aggregator');
Dries's avatar
   
Dries committed
904
905
906
}

/**
Dries's avatar
Dries committed
907
 * Menu callback; displays the aggregator administration page.
Dries's avatar
   
Dries committed
908
909
 */
function aggregator_admin_overview() {
Dries's avatar
   
Dries committed
910
  return aggregator_view();
911
912
}

Dries's avatar
   
Dries committed
913
/**
Dries's avatar
Dries committed
914
 * Menu callback; displays the most recent items gathered from any feed.
Dries's avatar
   
Dries committed
915
 */
916
function aggregator_page_last() {
917
  return _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
918
919
}

Dries's avatar
   
Dries committed
920
/**
Dries's avatar
Dries committed
921
 * Menu callback; displays all the items captured from a particular feed.
Dries's avatar
   
Dries committed
922
 */
923
function aggregator_page_source() {
Dries's avatar
   
Dries committed
924
  $feed = db_fetch_object(db_query('SELECT * FROM {aggregator_feed} WHERE fid = %d', arg(2)));
Dries's avatar