modules/atom/atom.pages.inc

<?php
// $Id: atom.pages.inc,v 1.10 2009/09/21 22:32:17 davereid Exp $

/**
 * @file
 * Various non-administration page callbacks for the atom module.
 */

/**
 * Produces an atom 1.0 feed for the front page content.
 */
function atom_feed() {
  $query = db_select('node');
  $query->addField('node', 'nid');
  $query->condition('promote', 1);
  $query->condition('status', 1);
  $query->orderBy('sticky', 'DESC');
  $query->orderBy('created', 'DESC');
  $query->range(0, variable_get('atom_feed_entries', 15));
  $query->addTag('node_access');
  $nodes = $query->execute()->fetchCol();

  $feed_info = array();
  $feed_info['html_url'] = url('', array('absolute' => TRUE));
  $feed_info['atom_url'] = url('atom.xml', array('absolute' => TRUE));
  _atom_print_feed($nodes, $feed_info);
}

function atom_blog_feed() {
  $query = db_select('node');
  $query->addField('node', 'nid');
  $query->condition('type', 'blog');
  $query->condition('status', 1);
  $query->orderBy('sticky', 'DESC');
  $query->orderBy('created', 'DESC');
  $query->range(0, variable_get('atom_feed_entries', 15));
  $query->addTag('node_access');
  $nodes = $query->execute()->fetchCol();

  $feed_info = array();
  $feed_info['title']    = t('!site_name blogs', array('!site_name' => variable_get('site_name', 'Drupal')));
  $feed_info['html_url'] = url('blog', array('absolute' => TRUE));
  $feed_info['atom_url'] = url('blog/atom.xml', array('absolute' => TRUE));
  _atom_print_feed($nodes, $feed_info);
}

function atom_node_feed(stdClass $node) {
  if (!node_access('view', $node)) {
    return drupal_access_denied();
  }

  $nodes = array($node->nid);

  $feed_info = array();
  $feed_info['html_url'] = url('node/' . $node->nid, array('absolute' => TRUE));
  $feed_info['atom_url'] = url('node/' . $node->nid . '/atom.xml', array('absolute' => TRUE));
  _atom_print_feed($nodes, $feed_info);
}

function atom_user_blog_feed(stdClass $account) {
  $query = db_select('node');
  $query->addField('node', 'nid');
  $query->condition('type', 'blog');
  $query->condition('uid', $account->uid);
  $query->condition('status', 1);
  $query->orderBy('sticky', 'DESC');
  $query->orderBy('created', 'DESC');
  $query->range(0, variable_get('atom_feed_entries', 15));
  $query->addTag('node_access');
  $nodes = $query->execute()->fetchCol();

  $feed_info = array();
  $feed_info['title']    = t("!name's blog", array('!name' => $account->name));
  $feed_info['subtitle'] = '';
  $feed_info['html_url'] = url('blog/' . $account->uid, array('absolute' => TRUE));
  $feed_info['atom_url'] = url("blog/' . $account->uid . '/atom.xml", array('absolute' => TRUE));
  _atom_print_feed($nodes, $feed_info);
}

function atom_taxonomy_feed(stdClass $term) {
  $nodes = taxonomy_select_nodes(array($term->tid), NULL, NULL, TRUE);

  $feed_info['title']    = $term->name;
  $feed_info['subtitle'] = $term->description;
  $feed_info['html_url'] = url('taxonomy/term/' . $term->tid, array('absolute' => TRUE));
  $feed_info['atom_url'] = url("taxonomy/term/' . $term->tid . '/atom.xml", array('absolute' => TRUE));
  _atom_print_feed($nodes, $feed_info);
}

function _atom_print_feed(array $nids, array $feed_info) {
  _atom_contrib_load();
  $feed_info['extra_ns'] = _atom_contrib_get_ns();
  $output = '';
  $last_mod = 0;

  $nodes = node_load_multiple($nids);
  foreach ($nodes as $node) {
    $item_text = '';

    $node->link = url("node/$node->nid", array('absolute' => TRUE));

    node_build_content($node, 'rss');

    // Allow modules to change $node, or add elements,
    // specifically for an atom feed.
    $extra = module_invoke_all('atom_feed', $node);

    if (!empty($node->content)) {
      // We render node contents and force links to be last.
      $links = drupal_render($node->content['links']);
      $item_text .= drupal_render($node->content) . $links;
    }

    $item = array(
      'published' => $node->created,
      'updated' => $node->changed,
      'author' => $node->name ? $node->name : variable_get('anonymous', 'Anonymous'),
      'content' => $item_text,
      // @todo How to have summary and/or full body?
    );

    // @todo Now that taxonomy terms are fields, this does not work.
    //if (module_exists('taxonomy')) {
    //  $terms = taxonomy_node_get_terms($node);
    //  foreach ($terms as $term) {
    //    $extra[] = array('key' => 'category', 'attributes' => array('term' => $term->name));
    //  }
    //}

    $output .= theme('atom_feed_item', $node->title, $node->link, $item, $extra);
  }

  // Merge some default values.
  $feed_info += array(
    'title' => variable_get('site_name', 'Drupal'),
    'subtitle' => variable_get('site_slogan', ''),
  );

  $output = theme('atom_feed', $feed_info, $output);

  drupal_set_header('Content-Type: application/atom+xml; charset=utf-8');
  print $output;
}

function theme_atom_feed(array $feed_info, $items) {
  $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
  $output .= '<feed xmlns="http://www.w3.org/2005/Atom">'."\n";
  $output .= '  <title type="text">'. check_plain($feed_info['title']) ."</title>\n";
  if ($feed_info['subtitle']) {
    $output .= '  <subtitle type="text">' . check_plain($feed_info['subtitle']) . "</subtitle>\n";
  }
  $output .= '  <link rel="alternate" type="text/html" href="'. check_plain($feed_info['html_url']) .'" />'."\n";
  $output .= '  <link rel="self" type="application/atom+xml" href="'. check_plain($feed_info['atom_url']) .'" />'."\n";
  //$output .= '  <generator version="' . VERSION . '" uri="http://drupal.org">Drupal</generator>'."\n";
  $output .= '  <id>'. check_plain($feed_info['atom_url']) ."</id>\n";
  $output .= '  <updated>'. gmdate(DATE_ATOM, time()) ."</updated>\n";
  $output .= $items;
  $output .= "</feed>\n";
  return $output;
}

function theme_atom_feed_item($title, $link, array $item, array $extra) {
  $item += array(
    'id' => $link,
    'summary' => '',
    'content' => '',
    'author' => '',
  );

  $output = "  <entry>\n";
  $output .= "    <id>" . check_plain($item['id']) . "</id>\n";
  $output .= "    <link rel=\"alternate\" type=\"text/html\" href=\"" . check_plain($link) . "\" />\n";
  $output .= "    <published>" . gmdate(DATE_ATOM, $item['published']) . "</published>\n";
  $output .= "    <updated>" . gmdate(DATE_ATOM, $item['updated']) . "</updated>\n";
  $output .= "    <title type=\"text\">" . check_plain($title) . "</title>\n";
  if ($item['author']) {
    $output .= "    <author><name>" . check_plain($item['author']) . "</name></author>\n";
  }
  if ($item['summary']) {
    $output .= "    <summary type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">" . $item['summary'] . "</div></summary>\n";
  }
  if ($item['content']) {
    $output .= "    <content type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">" . $item['content'] . "</div></content>\n";
  }
  if ($extra) {
    $output .= format_xml_elements($extra);
  }
  $output .= "  </entry>\n";
  return $output;
}

/**
 * @return string any additional namespaces used by contrib modules.
 */
function _atom_contrib_get_ns() {
  _atom_contrib_load();

  $ns_array = module_invoke_all('atom_ns');
  return count($ns_array) > 0 ? "\n      " . implode("\n      ", $ns_array) : '';
}
1	<?php
2	// $Id: atom.pages.inc,v 1.10 2009/09/21 22:32:17 davereid Exp $
3
4	/**
5	* @file
6	* Various non-administration page callbacks for the atom module.
7	*/
8
9	/**
10	* Produces an atom 1.0 feed for the front page content.
11	*/
12	function atom_feed() {
13	$query = db_select('node');
14	$query->addField('node', 'nid');
15	$query->condition('promote', 1);
16	$query->condition('status', 1);
17	$query->orderBy('sticky', 'DESC');
18	$query->orderBy('created', 'DESC');
19	$query->range(0, variable_get('atom_feed_entries', 15));
20	$query->addTag('node_access');
21	$nodes = $query->execute()->fetchCol();
22
23	$feed_info = array();
24	$feed_info['html_url'] = url('', array('absolute' => TRUE));
25	$feed_info['atom_url'] = url('atom.xml', array('absolute' => TRUE));
26	_atom_print_feed($nodes, $feed_info);
27	}
28
29	function atom_blog_feed() {
30	$query = db_select('node');
31	$query->addField('node', 'nid');
32	$query->condition('type', 'blog');
33	$query->condition('status', 1);
34	$query->orderBy('sticky', 'DESC');
35	$query->orderBy('created', 'DESC');
36	$query->range(0, variable_get('atom_feed_entries', 15));
37	$query->addTag('node_access');
38	$nodes = $query->execute()->fetchCol();
39
40	$feed_info = array();
41	$feed_info['title'] = t('!site_name blogs', array('!site_name' => variable_get('site_name', 'Drupal')));
42	$feed_info['html_url'] = url('blog', array('absolute' => TRUE));
43	$feed_info['atom_url'] = url('blog/atom.xml', array('absolute' => TRUE));
44	_atom_print_feed($nodes, $feed_info);
45	}
46
47	function atom_node_feed(stdClass $node) {
48	if (!node_access('view', $node)) {
49	return drupal_access_denied();
50	}
51
52	$nodes = array($node->nid);
53
54	$feed_info = array();
55	$feed_info['html_url'] = url('node/' . $node->nid, array('absolute' => TRUE));
56	$feed_info['atom_url'] = url('node/' . $node->nid . '/atom.xml', array('absolute' => TRUE));
57	_atom_print_feed($nodes, $feed_info);
58	}
59
60	function atom_user_blog_feed(stdClass $account) {
61	$query = db_select('node');
62	$query->addField('node', 'nid');
63	$query->condition('type', 'blog');
64	$query->condition('uid', $account->uid);
65	$query->condition('status', 1);
66	$query->orderBy('sticky', 'DESC');
67	$query->orderBy('created', 'DESC');
68	$query->range(0, variable_get('atom_feed_entries', 15));
69	$query->addTag('node_access');
70	$nodes = $query->execute()->fetchCol();
71
72	$feed_info = array();
73	$feed_info['title'] = t("!name's blog", array('!name' => $account->name));
74	$feed_info['subtitle'] = '';
75	$feed_info['html_url'] = url('blog/' . $account->uid, array('absolute' => TRUE));
76	$feed_info['atom_url'] = url("blog/' . $account->uid . '/atom.xml", array('absolute' => TRUE));
77	_atom_print_feed($nodes, $feed_info);
78	}
79
80	function atom_taxonomy_feed(stdClass $term) {
81	$nodes = taxonomy_select_nodes(array($term->tid), NULL, NULL, TRUE);
82
83	$feed_info['title'] = $term->name;
84	$feed_info['subtitle'] = $term->description;
85	$feed_info['html_url'] = url('taxonomy/term/' . $term->tid, array('absolute' => TRUE));
86	$feed_info['atom_url'] = url("taxonomy/term/' . $term->tid . '/atom.xml", array('absolute' => TRUE));
87	_atom_print_feed($nodes, $feed_info);
88	}
89
90	function _atom_print_feed(array $nids, array $feed_info) {
91	_atom_contrib_load();
92	$feed_info['extra_ns'] = _atom_contrib_get_ns();
93	$output = '';
94	$last_mod = 0;
95
96	$nodes = node_load_multiple($nids);
97	foreach ($nodes as $node) {
98	$item_text = '';
99
100	$node->link = url("node/$node->nid", array('absolute' => TRUE));
101
102	node_build_content($node, 'rss');
103
104	// Allow modules to change $node, or add elements,
105	// specifically for an atom feed.
106	$extra = module_invoke_all('atom_feed', $node);
107
108	if (!empty($node->content)) {
109	// We render node contents and force links to be last.
110	$links = drupal_render($node->content['links']);
111	$item_text .= drupal_render($node->content) . $links;
112	}
113
114	$item = array(
115	'published' => $node->created,
116	'updated' => $node->changed,
117	'author' => $node->name ? $node->name : variable_get('anonymous', 'Anonymous'),
118	'content' => $item_text,
119	// @todo How to have summary and/or full body?
120	);
121
122	// @todo Now that taxonomy terms are fields, this does not work.
123	//if (module_exists('taxonomy')) {
124	// $terms = taxonomy_node_get_terms($node);
125	// foreach ($terms as $term) {
126	// $extra[] = array('key' => 'category', 'attributes' => array('term' => $term->name));
127	// }
128	//}
129
130	$output .= theme('atom_feed_item', $node->title, $node->link, $item, $extra);
131	}
132
133	// Merge some default values.
134	$feed_info += array(
135	'title' => variable_get('site_name', 'Drupal'),
136	'subtitle' => variable_get('site_slogan', ''),
137	);
138
139	$output = theme('atom_feed', $feed_info, $output);
140
141	drupal_set_header('Content-Type: application/atom+xml; charset=utf-8');
142	print $output;
143	}
144
145	function theme_atom_feed(array $feed_info, $items) {
146	$output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
147	$output .= '<feed xmlns="http://www.w3.org/2005/Atom">'."\n";
148	$output .= ' <title type="text">'. check_plain($feed_info['title']) ."</title>\n";
149	if ($feed_info['subtitle']) {
150	$output .= ' <subtitle type="text">' . check_plain($feed_info['subtitle']) . "</subtitle>\n";
151	}
152	$output .= ' <link rel="alternate" type="text/html" href="'. check_plain($feed_info['html_url']) .'" />'."\n";
153	$output .= ' <link rel="self" type="application/atom+xml" href="'. check_plain($feed_info['atom_url']) .'" />'."\n";
154	//$output .= ' <generator version="' . VERSION . '" uri="http://drupal.org">Drupal</generator>'."\n";
155	$output .= ' <id>'. check_plain($feed_info['atom_url']) ."</id>\n";
156	$output .= ' <updated>'. gmdate(DATE_ATOM, time()) ."</updated>\n";
157	$output .= $items;
158	$output .= "</feed>\n";
159	return $output;
160	}
161
162	function theme_atom_feed_item($title, $link, array $item, array $extra) {
163	$item += array(
164	'id' => $link,
165	'summary' => '',
166	'content' => '',
167	'author' => '',
168	);
169
170	$output = " <entry>\n";
171	$output .= " <id>" . check_plain($item['id']) . "</id>\n";
172	$output .= " <link rel=\"alternate\" type=\"text/html\" href=\"" . check_plain($link) . "\" />\n";
173	$output .= " <published>" . gmdate(DATE_ATOM, $item['published']) . "</published>\n";
174	$output .= " <updated>" . gmdate(DATE_ATOM, $item['updated']) . "</updated>\n";
175	$output .= " <title type=\"text\">" . check_plain($title) . "</title>\n";
176	if ($item['author']) {
177	$output .= " <author><name>" . check_plain($item['author']) . "</name></author>\n";
178	}
179	if ($item['summary']) {
180	$output .= " <summary type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">" . $item['summary'] . "</div></summary>\n";
181	}
182	if ($item['content']) {
183	$output .= " <content type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">" . $item['content'] . "</div></content>\n";
184	}
185	if ($extra) {
186	$output .= format_xml_elements($extra);
187	}
188	$output .= " </entry>\n";
189	return $output;
190	}
191
192	/**
193	* @return string any additional namespaces used by contrib modules.
194	*/
195	function _atom_contrib_get_ns() {
196	_atom_contrib_load();
197
198	$ns_array = module_invoke_all('atom_ns');
199	return count($ns_array) > 0 ? "\n " . implode("\n ", $ns_array) : '';
200	}