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<?php |
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// $Id: $ |
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/* |
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* Aggregator2 Easy Feed module |
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* |
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* @file |
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* Adds "url" field to user registration form and creates feed note for that url after user is registered |
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* Sponsored by John Bransford. |
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*/ |
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/* |
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Copyright (C) 2005-2006 by Marcin Konicki <ahwayakchih@gmail.com> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY. |
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See the LICENSE file for more details. |
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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 aggregator2_easyfeed_help($section) { |
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switch ($section) { |
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case 'admin/modules#description': |
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return t('Allows users to create aggregator2 feed at registration time in a very easy way.'); |
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case 'admin/settings/aggregator2_easyfeed': |
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return '<p>'. t('Allows users to create aggregator2 feed at registration time in a very easy way. Requires Aggregator2 module.') .'</p>'; |
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} |
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} |
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/** |
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* Implementation of hook_user(). |
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*/ |
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function aggregator2_easyfeed_user($type, &$edit, &$edit_user, $category = NULL) { |
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switch ($type) { |
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case 'register': |
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$output = ''; |
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$output .= form_textfield(t('Feed URL'), 'agg2_easyfeed_url', $edit['agg2_easyfeed_url'], 60, 250, t('If You want to add Your feed to this site, enter its URL here.'), NULL, NULL); |
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$output .= form_textfield(t('Feed Logo URL'), 'agg2_easyfeed_logo', $edit['agg2_easyfeed_logo'], 60, 250, t('Optionally You can give us URL of logo to be used for Your feed.'), NULL, NULL); |
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return array(array('title' => t('Add Your Feed'), 'data' => $output, 'weight' => 0)); |
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break; |
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case 'insert': |
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_aggregator2_easyfeed_add($edit['agg2_easyfeed_url'], $edit); |
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$edit['agg2_easyfeed_url'] = NULL; |
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$edit['agg2_easyfeed_logo'] = NULL; |
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break; |
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} |
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} |
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/** |
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* Implementation of hook_settings(). |
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*/ |
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function aggregator2_easyfeed_settings() { |
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$output = ''; |
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$result = db_query('SELECT n.nid, n.title FROM {node} n, {aggregator2_feed} af WHERE n.nid = af.nid'); |
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$list = array(); |
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$list[0] = t('--------------'); |
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while ($feed = db_fetch_object($result)) { |
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$list[$feed->nid] = $feed->title; |
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} |
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$output .= form_select(t('Feed Template'), 'agg2_easyfeed_template', variable_get('agg2_easyfeed_template', 0), $list, t('Select which aggregator2 feed will be used as template for all new feeds created by easyfeed module.')); |
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return $output; |
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} |
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/** |
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* Private function; Create aggregator2 feed node |
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*/ |
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function _aggregator2_easyfeed_add($url, &$user) { |
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$target = trim($url); |
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if (strlen($target) < 10 || !function_exists('aggregator2_http_request') || !variable_get('agg2_easyfeed_template', 0)) { |
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return; |
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} |
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$result = db_query("SELECT nid FROM {aggregator2_feed} WHERE url = '%s'", $url); |
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if ($result) { |
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$nid = db_fetch_object($result); |
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if ($nid && $nid->nid) { |
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return; |
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} |
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} |
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$result = aggregator2_http_request($url, array(), 15); |
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switch ($result->code) { |
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case 301: |
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_aggregator2_easyfeed_add($result->redirect_url); |
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break; |
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case 200: |
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case 302: |
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case 307: |
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{ |
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$edit = node_load(array('nid' => variable_get('agg2_easyfeed_template', 0))); |
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if (!$edit->nid) { |
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return; |
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} |
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$xml_tree = aggregator2_parse_xml($result->data); |
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if ($xml_tree['parser_error']) { |
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return; |
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} |
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/* |
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** Taxonomy module doesn't add taxonomy terms at load time... so we have to do it by hand :(( |
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*/ |
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$terms = module_invoke('taxonomy', 'node_get_terms', $edit->nid, 'tid'); |
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foreach ($terms as $tid => $term) { |
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if ($term->tid) { |
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$edit->taxonomy[] = $term->tid; |
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} |
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} |
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$edit->uid = $user['uid']; |
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$edit->name = $user['name']; |
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$edit->url = $url; |
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unset($edit->nid); |
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unset($edit->path); // avoid path alias conflicts! |
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unset($edit->parent_node); // avoid messing up relativity module's data :) |
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unset($edit->image); // cleanup logo |
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$edit->date = format_date(time(), 'custom', 'Y-m-d H:i O'); |
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$edit->created = strtotime($edit->date); |
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/* |
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** Prepare data: |
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*/ |
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if ($xml_tree['RSS']) { // RSS 0.91, 0.92, 2.0 |
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$root = &$xml_tree['RSS'][0]; |
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$channel = &$root['CHANNEL'][0]; |
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$title = &$channel['TITLE'][0]['VALUE']; |
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$image = &$channel['IMAGE'][0]; |
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$description = &$channel['DESCRIPTION'][0]['VALUE']; |
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$link = &$channel['LINK'][0]['VALUE']; |
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} |
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else if ($xml_tree['RDF:RDF']) { |
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$root = &$xml_tree['RDF:RDF'][0]; |
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$channel = &$root['CHANNEL'][0]; |
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$title = &$channel['TITLE'][0]['VALUE']; |
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$image = &$root['IMAGE'][0]; |
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$description = &$channel['DESCRIPTION'][0]['VALUE']; |
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$link = &$channel['LINK'][0]['VALUE']; |
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} |
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else if ($xml_tree['FEED']) { // Atom 0.3, 1.0 |
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$root = &$xml_tree['FEED'][0]; |
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$channel = &$root; |
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$title = &$channel['TITLE'][0]['VALUE']; |
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$image = &$channel['LOGO'][0]['VALUE']; |
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$description = ($channel['TAGLINE'][0]['VALUE'] ? $channel['TAGLINE'][0]['VALUE'] : ''); |
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// TODO: remove this Atom hack when we have field mapping or at least specialized parsers in place |
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if (count($channel['LINK']) > 1) { |
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$link = $feed->link; |
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foreach ($channel['LINK'] as $l) { |
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if ($l['REL'] == 'alternate') { |
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$link = $l['HREF']; |
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} |
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} |
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} |
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else { |
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$link = $channel['LINK'][0]['HREF']; |
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} |
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} |
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else if ($xml_tree['CHANNEL']) { // RSS 1.1 |
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$root = &$xml_tree['CHANNEL'][0]; |
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$channel = &$root; |
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$title = &$channel['TITLE'][0]['VALUE']; |
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$image = &$channel['IMAGE'][0]; |
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$description = &$channel['DESCRIPTION'][0]['VALUE']; |
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$link = &$channel['LINK'][0]['VALUE']; |
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} |
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else { |
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// unsupported format |
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return; |
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} |
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if (trim($title) != '') { |
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$edit->title = $title; |
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} |
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else { |
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$edit->title = t('New feed #%time', array('%time' => time())); |
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} |
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if ($description/* && valid_input_data($description)*/) { |
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$edit->body = $edit->teaser = $description; |
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} |
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/* |
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** Generate image link |
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*/ |
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if ($image['LINK'] && $image['URL'] && $image['TITLE']) { |
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if (strlen($image['TITLE'][0]['VALUE']) > 250) { |
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$image['TITLE'][0]['VALUE'] = trim(substr($image['TITLE'][0]['VALUE'], 0, 250)).'...'; |
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} |
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$edit->image = '<a href="'. $image['LINK'][0]['VALUE'] .'" class="aggregator2_logo_link"><img src="'. ($user['agg2_easyfeed_logo'] ? $user['agg2_easyfeed_logo'] : $image['URL'][0]['VALUE']) .'" class="aggregator2_logo" alt="'. $image['TITLE'][0]['VALUE'] .'" /></a>'; |
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} |
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else if ($user['agg2_easyfeed_logo'] && $link) { |
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$edit->image = '<a href="'. $link .'" class="aggregator2_logo_link"><img src="'. $link .'" class="aggregator2_logo" alt="'. $title .'" /></a>'; |
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} |
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$feed = node_validate($edit); |
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// Re-set user because Drupal sets it to anonymous (newly registered user is not logged in) |
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$feed->uid = $user['uid']; |
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$feed->name = $user['name']; |
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$errors = NULL; |
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if (!($errors = form_get_errors())) { |
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$nid = node_save($feed); |
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flush(); |
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sleep(variable_get('aggregator2_sleep_interval', 3)); |
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return $nid; |
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} |
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else { |
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watchdog('aggregator2', t('Failed to validate aggregator2-feed for %site: %error.', array('%site' => '<em>'. $feed->title .'</em>', '%error' => '<em>'. implode("\n", $errors) .'</em>')), WATCHDOG_ERROR, l(t('view'), 'node/'.$feed->nid)); |
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drupal_set_message(t('Failed to validate aggregator2-feed for %site: %error.', array('%site' => '<em>'. $feed->title .'</em>', '%error' => '<em>'. implode("\n", $errors) .'</em>'))); |
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} |
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} |
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default: |
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break; |
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} |
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} |
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