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<?php
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// $Id: enclosure.module,v 1.0 2007/04/13 20:48:35 Exp $
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/**
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* @file
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* Enables users to attach an enclosure tag to the RSS feed of a node.
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*/
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/**
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* Implementation of hook_help().
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*/
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function enclosure_help($section) {
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switch ($section) {
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case 'admin/help#enclosure':
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$output = '<p>'. t('The enclosure module allows users to specify an RSS enclosure tag for any node. The tag will appear any time RSS is generated from a particular node.') .'</p>';
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$output .= '<p>'. t('Users with the add RSS enclosure permission can upload attachments. You can choose which post types can take RSS enclosure tags on the content types settings page.') .'</p>';
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$output .= '<p>'. t('For more information please contact Armando Leon, the author of this module, at <a href="@upload">armando(dot)leon(at)gmail(dot)com</a>.', array('@upload' => 'mailto:armando(dot)leon(at)gmail(dot)com')) .'</p>';
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return $output;
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}
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}
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/**
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* Implementation of hook_install().
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*/
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function enclosure_install() {
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switch ($GLOBALS['db_type']) {
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case 'mysql':
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case 'mysqli':
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db_query("CREATE TABLE {enclosure} (
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nid int(10) unsigned NOT NULL default '0',
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enc_url varchar(255) NOT NULL default '',
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enc_length int(10) unsigned NOT NULL default '0',
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enc_type varchar(30) NOT NULL default '',
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PRIMARY KEY (nid)
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)");
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break;
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case 'pgsql':
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db_query("CREATE TABLE {enclosure} (
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nid int NOT NULL default '0',
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enc_url varchar(255) NOT NULL default '0',
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enc_length int NOT NULL default '0',
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enc_type varchar(30) NOT NULL default '',
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PRIMARY KEY (nid)
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)");
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break;
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}
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}
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/**
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* Implementation of hook_uninstall().
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*/
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function enclosure_uninstall() {
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db_query('DROP TABLE {enclosure}');
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}
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/**
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* Implementation of hook_perm().
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*/
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function enclosure_perm() {
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return array('modify enclosure');
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}
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/**
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* Implementation of hook_form_alter().
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*/
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function enclosure_form_alter(&$form, &$form_state, $form_id) {
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if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id) {
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$enc_url = $form['#node']->enc_url;
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$enc_length = $form['#node']->enc_length;
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$enc_type = $form['#node']->enc_type;
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$form['enclosure'] = array(
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'#type' => 'fieldset',
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'#title' => t('RSS Enclosure'),
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'#collapsible' => TRUE,
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'#collapsed' => empty($enc_url),
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'#access' => user_access('modify enclosure'),
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'#weight' => 35,
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);
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$form['enclosure']['enc_url'] = array(
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'#type' => 'textfield',
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'#default_value' => $enc_url,
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'#maxlength' => 250,
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#description' => t('Optionally specify an RSS enclosure URL for this node. This will only appear in an RSS feed.'),
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);
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$form['enclosure']['enc_length'] = array(
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'#type' => 'textfield',
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'#default_value' => $enc_length,
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'#maxlength' => 8,
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#description' => t('Specify a file size. When in doubt, enter "0".'),
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);
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$form['enclosure']['enc_type'] = array(
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'#type' => 'textfield',
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'#default_value' => $enc_type,
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'#maxlength' => 30,
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#description' => t('Specify a file type. When in doubt, enter "audio/mpeg".'),
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);
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}
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}
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/**
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* Implementation of hook_nodeapi().
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*/
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function enclosure_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
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if (user_access('modify enclosure')) {
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switch ($op) {
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case 'validate':
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$node->enc_url = trim($node->enc_url);
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$node->enc_length = trim($node->enc_length);
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$node->enc_type = trim($node->enc_type);
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if ($enc_url) {
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if (!is_numeric($node->enc_length) || ($node->enc_length < 0)) {
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form_set_error('enc_length', t('The enclosure length must be a number and greater than or equal to zero.'));
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}
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if (!$enc_type) {
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form_set_error('enc_type', t('The enclosure type must be set.'));
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}
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}
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break;
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case 'load':
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$data = db_fetch_object(db_query("SELECT * FROM {enclosure} WHERE nid = '%d'", $node->nid));
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if ($data) {
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$node->enc_url = $data->enc_url;
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$node->enc_length = $data->enc_length;
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$node->enc_type = $data->enc_type;
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}
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break;
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case 'insert':
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if ($node->enc_url) {
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enclosure_set($node->nid, $node->enc_url, $node->enc_length, $node->enc_type);
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}
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break;
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case 'update':
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if ($node->enc_url) {
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enclosure_set($node->nid, $node->enc_url, $node->enc_length, $node->enc_type);
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} else {
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enclosure_unset($node->nid);
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}
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break;
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case 'delete':
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enclosure_unset($node->nid);
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break;
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case 'rss item':
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if ($node->enc_url) {
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return array(
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array(
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'key' => 'enclosure',
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'attributes' => array(
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'url' => $node->enc_url,
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'length' => $node->enc_length,
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'type' => $node->enc_type
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)
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)
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);
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} else {
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return array();
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}
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}
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}
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}
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function enclosure_set($nid, $enc_url, $enc_length, $enc_type) {
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if (db_result(db_query("SELECT COUNT(nid) FROM {enclosure} WHERE nid = %d", $nid))) {
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db_query("UPDATE {enclosure} SET enc_url = '%s', enc_length = '%d', enc_type = '%s' WHERE nid = %d", $enc_url, $enc_length, $enc_type, $nid);
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} else {
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db_query("INSERT INTO {enclosure} (nid, enc_url, enc_length, enc_type) VALUES (%d, '%s', %d, '%s')", $nid, $enc_url, $enc_length, $enc_type);
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}
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}
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function enclosure_unset($nid) {
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if (db_result(db_query("SELECT COUNT(nid) FROM {enclosure} WHERE nid = %d", $nid))) {
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db_query("DELETE FROM {enclosure} WHERE nid = %d", $nid);
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}
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}
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