I’ve been meaning to write this code for a while, and I really wanted to take a stab at writing a wordpress plugin so here it goes.
The following takes in Google user credentials, and allows the user to display what RSS feeds they subscribe to on their wordpress blog
Example: The RSS that I read
Update: This plugin is now hosted by wordpress. click here
/*
Plugin Name: Google Reader Subscription List
Version: 1
Author: Timothy Broder
Description: Lists a users subscribed Google Reader feeds
*/
/* Copyright 2009 Timothy Broder (email : timothy.broder@gmail.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
if (!class_exists('GoogleReaderSubList')) {
class GoogleReaderSubList {
var $show_list = 'show-google-reader-sub-list'; //the hook in a page
var $login = '';
var $pass = '';
var $source = 'wordpress-google-reader-sub-list-'; //the source the api sees when logging into Google
var $service = 'reader';
var $login_url = 'https://www.google.com/accounts/ServiceLoginAuth?service=mail'; //URL to login to google
var $subscription_list_url = 'http://www.google.com/reader/api/0/subscription/list'; //URL that holds a users subscriptions
function GoogleReaderSubList() {
$options = $this->get_admin_options();
$this->login = $options['google_login'];
$this->pass = $options['google_pass'];
$this->source = $this->source . $this->login;
}
function show_sub_list() {
$stop = false;
if ($this->login == '' || $this->login == null) {
echo 'Google login not set
';
$stop = true;
}
if ($this->pass == '' || $this->pass == null) {
echo 'Google password not set
';
$stop = true;
}
//check to see if the zend plugin has been installed and activated
//http://wordpress.org/extend/plugins/zend-framework/
if (!(defined('WP_ZEND_FRAMEWORK') && WP_ZEND_FRAMEWORK)) {
echo 'The Zend Framework Plugin is not active. Please install and activate it.';
$stop = true;
}
if ($stop) {
return;
}
$client = new Zend_Http_Client($this->login_url);
//connect, authenticate, and handshake with Google
$client->setCookieJar()
->setMethod(Zend_Http_Client::POST)
->setParameterPost(array(
'continue' => $this->subscription_list_url,
'service' => 'reader',
'niu' => 1,
'hl' => 'en',
'Email' => $this->login,
'Passwd' => $this->pass,
'PersistentCookie' => 'yes',
'asts' => ''
));
//$error_level = error_reporting();
//error_reporting(1);
$response = $client->request('POST');
$client->setUri($this->subscription_list_url)->setMethod(Zend_Http_Client::GET);
$response = $client->request()->getBody();
if ($client->request()->getStatus() == 400) {
?>Unable to login with supplied Google login/password< ?
return;
}
//error_reporting($error_level);
//got the feed, parse it
$feed = simplexml_load_string($response);
$hashmap = array();
//organize the feeds by tag
foreach ($feed->list->object as $e) {
$url = $e->string[0];
$title = $e->string[1];
$cat = $e->list->object->string[1];
//make sure a feed is filed somewhere
if ($cat == '') {
$cat = 'unfiled';
}
$t = $hashmap["$cat"];
//a category hasn't been used before
if ($t == null) {
$t = array($e);
$hashmap["$cat"] = $t;
}
//category has been used before
else {
array_push($t, $e);
$hashmap["$cat"] = $t;
}
}
//sort the categories
ksort($hashmap);
//output
?>
Tags:
< ?
$endKey = end(array_keys($hashmap));
foreach ($hashmap as $cat=>$t) {
echo "$cat";
if ($cat != $endKey) {
echo ', ';
}
}
?>
< ?
foreach ($hashmap as $cat=>$t) {
echo "";
echo "$cat
";
foreach ($t as $e) {
list($feed, $url) = split('feed/', $e->string[0]);
$title = $e->string[1];
echo "$title
";
}
echo '
';
}
}
function addContent($content) {
// Only do this if this is a page and it has the appropriate custom field
if (is_page()) {
$cust_field_values = get_post_custom_values($this->show_list);
if ($cust_field_values != NULL) {
if (defined('WP_ZEND_FRAMEWORK') && WP_ZEND_FRAMEWORK) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass('Zend_Http_Client');
}
$content = $this->show_sub_list();
}
}
return $content;
}
function init() {
$this->get_admin_options();
}
function get_admin_options() {
$admin_options = array('google_login' => '',
'google_pass' => '',
'use_accordion' => 'true');
$options = get_option($this->adminOptionName);
if (!empty($options)) {
foreach ($options as $key => $option) {
$admin_options[$key] = $option;
}
}
update_option($this->admin_optionsName, $admin_options);
return $admin_options;
}
function printAdminPage() {
$options = $this->get_admin_options();
if (isset($_POST['update_greader_sub_list_settings'])) {
if (isset($_POST['greader_sub_list_login'])) {
$options['google_login'] = $_POST['greader_sub_list_login'];
}
if (isset($_POST['greader_sub_list_pass'])) {
$options['google_pass'] = $_POST['greader_sub_list_pass'];
}
update_option($this->admin_optionsName, $options);
echo '' . _e('Settings Updated.', 'GoogleReaderSubList'). '
';
}
//$submit = _e('Update Settings', 'GoogleReaderSubList');
echo " ";
}
}
}
if (class_exists('GoogleReaderSubList')) {
$greader_sub_list = new GoogleReaderSubList();
}
if (!function_exists('greader_sub_list_ap')) {
function greader_sub_list_ap() {
global $greader_sub_list;
if (!isset($greader_sub_list)) {
return;
}
if (function_exists('add_options_page')) {
add_options_page('gReader Subscriptions', 'gReader Subscriptions', 9, basename(__FILE__), array(&$greader_sub_list, 'printAdminPage'));
}
}
}
if (isset($greader_sub_list)) {
add_action('admin_menu', 'greader_sub_list_ap');
add_action('activate_google-raeder-list/google-reader-list.php', array(&$greader_sub_list, 'init'));
add_filter('the_content', array(&$greader_sub_list, 'addContent'), '7');
}
