mxmehl/better-twitter-widget
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5076222243c243a1e9e1294b4c9545895dbc7b4d
better-twitter-widget/better-twitter-widget.php

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initial commit
2016-09-07 20:59:59 +02:00
<?php
/*
Plugin Name: Better Twitter Widget
Plugin URI: http://mehl.mx
Description: RSS Widget optimised for Twitter RSS feeds. Enhancement of GrandSlambert's Better RSS Widget
Author: Max Mehl
Version: 1.0
Author URI: http://mehl.mx
* *************************************************************************
Copyright (C) 2016 Max Mehl
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 3 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, see <http://www.gnu.org/licenses/>.
* *************************************************************************
*/
/* Class Declaration */
class better_twitter_widget extends WP_Widget {
var $version = '2.7.1';
/* Plugin settings */
var $optionsName = 'better-twitter-widget-options';
var $menuName = 'better-twitter-widget-settings';
var $pluginName = 'Better Twitter Widget';
var $options = array();
var $make_link = false;
/**
* Plugin Constructor Method
*/
function better_twitter_widget() {
add_action('init', array($this, 'init'));
/* Set the plugin name to use the selected language. */
$this->pluginName = __('Better Twitter Widget', 'better-twitter-widget');
$widget_ops = array('description' => __('Enhancement of Better RSS Widget, focussed on plain Twitter feeds', 'better-twitter-widget'));
$control_ops = array('width' => 500, 'height' => 350);
parent::WP_Widget(false, $this->pluginName, $widget_ops, $control_ops);
/* Plugin paths */
$this->pluginPath = WP_PLUGIN_DIR . '/' . basename(dirname(__FILE__));
$this->pluginURL = WP_PLUGIN_URL . '/' . basename(dirname(__FILE__));
/* Load the plugin settings */
$this->load_settings();
/* WordPress Actions */
add_action('admin_menu', array(&$this, 'admin_menu'));
add_action('admin_init', array(&$this, 'admin_init'));
add_action('update_option_' . $this->optionsName, array(&$this, 'update_option'), 10);
/* WordPress FIlters */
add_filter('plugin_action_links', array(&$this, 'plugin_action_links'), 10, 2);
/* Add shortcode_handlers */
add_shortcode('better-rss', array($this, 'shortcode_handler'));
}
/**
* Load the plugin settings.
*/
function load_settings() {
$options = get_option($this->optionsName);
$defaults = array(
'link_target' => '_blank',
'allow_intro' => (is_array($options)) ? isset($options['allow_intro']) : true,
'show_summary' => false,
'show_author' => false,
'show_date' => false,
'show_time' => false,
'nofollow' => false,
'enable_cache' => (is_array($options)) ? isset($options['enable_cache']) : true,
'cache_duration' => 3600,
'items' => 10,
'title_length' => (is_array($options) && !empty($options['title_length'])) ? isset($options['title_length']) : 0,
'excerpt' => 360,
'suffix' => ' [&hellip;]'
);
$this->options = (object) wp_parse_args($options, $defaults);
}
/**
* Load the language file during WordPress init.
*/
function init() {
/* Load Langague Files */
$langDir = dirname(plugin_basename(__FILE__)) . '/lang';
load_plugin_textdomain('better-twitter-widget', false, $langDir, $langDir);
}
/**
* Add the admin page for the settings panel.
*
* @global string $wp_version
*/
function admin_menu() {
$page = add_options_page($this->pluginName . __(' Settings', 'better-twitter-widget'), $this->pluginName, 'manage_options', $this->menuName, array(&$this, 'options_panel'));
add_action('admin_print_styles-' . $page, array(&$this, 'admin_print_styles'));
add_action('admin_print_scripts-' . $page, array(&$this, 'admin_print_scripts'));
}
/**
* Register the options for Wordpress MU Support
*/
function admin_init() {
register_setting($this->optionsName, $this->optionsName);
wp_register_style('better-twitter-widget-admin-css', $this->pluginURL . '/includes/better-twitter-widget-admin.css');
wp_register_script('better-twitter-widget-js', $this->pluginURL . '/js/better-twitter-widget.js');
}
/**
* Print the administration styles.
*/
function admin_print_styles() {
wp_enqueue_style('better-twitter-widget-admin-css');
}
/**
* Print the scripts needed for the admin.
*/
function admin_print_scripts() {
wp_enqueue_script('better-twitter-widget-js');
}
/**
* Add a configuration link to the plugins list.
*
* @staticvar object $this_plugin
* @param array $links
* @param array $file
* @return array
*/
function plugin_action_links($links, $file) {
static $this_plugin;
if (!$this_plugin) {
$this_plugin = plugin_basename(__FILE__);
}
if ($file == $this_plugin) {
$settings_link = '<a href="' . admin_url('options-general.php?page=' . $this->menuName) . '">' . __('Settings', 'better-twitter-widget') . '</a>';
array_unshift($links, $settings_link);
}
return $links;
}
/**
* Check on update option to see if we need to reset the options.
* @param <array> $input
* @return <boolean>
*/
function update_option($input) {
if ($_REQUEST['confirm-reset-options']) {
delete_option($this->optionsName);
wp_redirect(admin_url('options-general.php?page=' . $this->menuName . '&tab=' . $_POST['active_tab'] . '&reset=true'));
exit();
} else {
wp_redirect(admin_url('options-general.php?page=' . $this->menuName . '&tab=' . $_POST['active_tab'] . '&updated=true'));
exit();
}
}
/**
* Settings management panel.
*/
function options_panel() {
include($this->pluginPath . '/includes/settings.php');
}
/**
* Method to create the widget.
*
* @param array $args
* @param array $instance
* @return false
*/
function widget($args, $instance) {
$instance = $this->defaults($instance);
if (isset($instance['error']) && $instance['error'])
return;
extract($args, EXTR_SKIP);
$url = $instance['rss_url'];
while (stristr($url, 'http') != $url)
$url = substr($url, 1);
if (empty($url)) {
return;
}
$rss = fetch_feed($url);
$desc = '';
$link = '';
if (!is_wp_error($rss)) {
$desc = esc_attr(strip_tags(@html_entity_decode($rss->get_description(), ENT_QUOTES, get_option('blog_charset'))));
if (empty($instance['title'])) {
$instance['title'] = esc_html(strip_tags($rss->get_title()));
}
$link = esc_url(strip_tags($rss->get_permalink()));
while (stristr($link, 'http') != $link) {
$link = substr($link, 1);
}
}
if (empty($instance['title'])) {
$instance['title'] = empty($desc) ? __('Unknown Feed', 'better-twitter-widget') : $desc;
}
$instance['title'] = apply_filters('widget_title', $instance['title']);
$url = esc_url(strip_tags($url));
$icon = includes_url('images/rss.png');
if ($instance['title_url']) {
$url = $link = $instance['title_url'];
}
$target = '';
if ($instance['link_target'] != 'none') {
$target = 'target="' . $instance['link_target'] . '"';
}
if ($instance['title']) {
if (!$instance['no_link_title']) {
$instance['title'] = '<a class="rsswidget" href="' . $link . '" title="' . $desc . '" ' . $target . '>' . $instance['title'] . '</a>';
}
if ($instance['show_icon']) {
$instance['title'] = "<a class='rsswidget' href='" . $instance[$instance['link_icon']] . "' title='" . esc_attr(__('Syndicate this content', 'better-twitter-widget')) . "' . $target . '><img style='background:orange;color:white;border:none;' width='14' height='14' src='$icon' alt='RSS' /></a> " . $instance['title'];
}
}
print $before_widget;
if ($instance['title']) {
print $before_title . $instance['title'] . $after_title;
}
if (true == $this->options->allow_intro && !empty($instance['intro_text'])) {
print '<div class="better-rss-intro-text">' . $instance['intro_text'] . '</div>';
}
$this->rss_output($rss, $instance);
print $after_widget;
}
/**
* Method to output the RSS for the widget and shortcode_handler
*
* @param string $rss
* @param array $args
* @return blank
*/
function rss_output($rss, $args = array()) {
if (is_string($rss)) {
$rss = fetch_feed($rss);
} elseif (is_array($rss) && isset($rss['url'])) {
$args = $rss;
$rss = fetch_feed($rss['url']);
} elseif (!is_object($rss)) {
return;
}
if (is_wp_error($rss)) {
if (is_admin() || current_user_can('manage_options')) {
print '<p>' . sprintf(__('<strong>RSS Error</strong>: %s', 'better-twitter-widget'), $rss->get_error_message()) . '</p>';
}
return;
}
$args = wp_parse_args($args, $this->defaults_args());
extract($args, EXTR_SKIP);
$items = (int) $items;
if ($items < 1 || 20 < $items) {
$items = 10;
}
$show_summary = (int) $show_summary;
$show_author = (int) $show_author;
$show_date = (int) $show_date;
// Set the cache duration
$rss->enable_cache($enable_cache);
$rss->set_cache_duration($cache_duration);
$rss->init();
if (!$rss->get_item_quantity()) {
print '<ul><li>' . __('An error has occurred; the feed is probably down. Try again later.', 'better-twitter-widget') . '</li></ul>';
return;
}
if (strtolower($link_target) != 'none') {
$target = 'target="' . $link_target . '"';
} else {
$target = '';
}
print '<' . $args['html_parent'] . '>';
foreach ($rss->get_items(0, $items) as $item) {
$link = $item->get_link();
while (stristr($link, 'http') != $link) {
$link = substr($link, 1);
}
$link = esc_url(strip_tags($link));
$title = esc_attr(strip_tags($item->get_title()));
if (empty($title)) {
$title = __('Untitled', 'better-twitter-widget');
}
$desc = str_replace(array("\n", "\r"), ' ', esc_attr(strip_tags(@html_entity_decode($item->get_description(), ENT_QUOTES, get_option('blog_charset')))));
// BUG -- CUSTOM comment out
/*if (!$hide_title) {
$desc = wp_html_excerpt($desc, $excerpt) . $this->options->suffix;
$desc = esc_html($desc);
}*/
$desc = esc_html($desc);
if ($show_summary) {
$summary = "<div class='rssSummary'>$desc</div>";
} else {
$summary = '';
}
$date = '';
if ($show_date) {
$date = $item->get_date();
if ($date) {
if ($date_stamp = strtotime($date))
$date = ' <span class="rss-date">' . date_i18n(get_option('date_format'), $date_stamp) . '</span>';
else
$date = '';
}
}
$time = '';
if ($show_time) {
$time = $item->get_date();
if ($time) {
if ($date_stamp = strtotime($time)) {
$time = ' <span class="rss-date">' . date_i18n(get_option('time_format'), $date_stamp) . '</span>';
} else {
$time = '';
}
}
}
$author = '';
if ($show_author) {
$author = $item->get_author();
if (is_object($author)) {
$author = $author->get_name();
$author = ' <cite>' . esc_html(strip_tags($author)) . '</cite>';
}
}
if ($hide_title && $item->get_description()) {
$title = $item->get_description();
}
if (true == $args['limit_title_length'] && $args['title_length'] > 0) {
$title = substr($title, 0, $args['title_length']);
}
if ($args['html_parent'] === 'dl') {
$html_open = '<dt>';
$html_after_title = '</dt>';
$html_before_details = '<dd>';
$html_close = '</dd>';
} else {
$html_open = '<' . $args['html_item'] . '>';
$html_after_title = '';
$html_before_details = '';
$html_close = '</' . $args['html_item'] . '>';
}
if ($link == '' or $hide_link) {
print $html_open . $title . $html_after_title;
print $html_before_details . $date . $summary . $author . $html_close;
} else {
/* ORIG
print $html_open . '<a ';
if ($nofollow) {
print ' rel="nofollow" ';
}
print 'class="rsswidget" href="' . $link . '" title="' . $desc . '"' . $target . '>' . $title . '</a>' . $html_after_title;
//print $html_before_details . $date . $time . $summary . $author . $html_close;
print $html_close;
======================= */
$search = array();
$search[0] = '/([\s>\-\.])#([[:alnum:]öäü]+)/i'; // text #hash text; >#hash text
$search[1] = '/([\s>\-\.])@([[:alnum:]_]+)/'; // @user
underscores are allowed in URLs
2016-10-14 14:01:43 +02:00
$search[2] = '/([\s>\-\.])(https?:[\/[:alnum:]\.\?\&#\=\%\+\-\_]+)/'; // http...
initial commit
2016-09-07 20:59:59 +02:00
$replace = array();
$replace[0] = '$1<a target="_blank" href="http://twitter.com/search?q=%23$2">#$2</a>';
$replace[1] = '$1<a target="_blank" href="http://twitter.com/$2">@$2</a>';
$replace[2] = '$1<a target="_blank" href="$2">$2</a>';
$extsummary = preg_replace($search, $replace, $summary);
// get tweet ID
$tid = preg_match('/(\d)+$/', $link, $match);
$tid = $match[0];
// li + text
print $html_open . $extsummary ;
print '<span style="opacity: 0.7;font-size: 0.9em;">' . $date . '</span>';
// Action bar
print '<span style="float:right;padding-right:20px;">';
// reply icon
print '<a rel="nofollow" title="Reply to this tweet" target="_blank" href="https://twitter.com/intent/tweet?in_reply_to=' . $tid . '" style="border:none;padding:0 5px;"><img src="' . plugins_url( 'img/reply.png', __FILE__ ) . '" style="height:15px;width:15px;opacity:0.5;"/></a>';
// retweet icon
print '<a rel="nofollow" title="Retweet this tweet" target="_blank" href="https://twitter.com/intent/retweet?tweet_id=' . $tid . '" style="border:none;padding:0 5px;"><img src="' . plugins_url( 'img/retweet.png', __FILE__ ) . '" style="height:15px;width:15px;opacity:0.5;"/></a>';
// like icon
print '<a rel="nofollow" title="Like this tweet" target="_blank" href="https://twitter.com/intent/favorite?tweet_id=' . $tid . '" style="border:none;padding:0 5px;"><img src="' . plugins_url( 'img/like.png', __FILE__ ) . '" style="height:15px;width:15px;opacity:0.5;"/></a>';
// view on twitter icon
print '<a rel="nofollow" title="View this tweet on Twitter" target="_blank" href="' . $link . '" style="border:none;padding:0 5px;"><img src="' . plugins_url( 'img/view.png', __FILE__ ) . '" style="height:15px;width:15px;opacity:0.5;"/></a>';
print '</span>'; // close action bar
// close li
print $html_close;
}
}
print '</' . $args['html_parent'] . '>';
}
/**
* Widget Update method
* @param array $new_instance
* @param array $old_instance
* @return array
*/
function update($new_instance, $old_instance) {
return $new_instance;
}
/**
* Load the instance defaults.
*
* @param array $instance
* @return array
*/
function defaults($instance) {
/* Fix any old instances to use new naming convention. */
if (isset($instance['url'])) {
$instance['rss-url'] = $instance['url'];
$instance['title_url'] = $instance['titleurl'];
$instance['show_icon'] = $instance['showicon'];
$instance['show_summary'] = $instance['showsummary'];
$instance['show_author'] = $instance['showauthor'];
$instance['show_date'] = $instance['showdate'];
$instance['show_time'] = $instance['showtime'];
$instance['link_target'] = $instance['linktarget'];
$instance['title_legnth'] = (isset($instance['title_length']) ? $instance['title_length'] : $this->options->title_length);
}
/* This is the new naming convention for the form fields */
$new_defaults = array(
'rss_url' => '',
'title' => '',
'title_url' => '',
'no_link_title' => false,
'show_icon' => false,
'link_icon' => 'rss_url',
'show_summary' => $this->options->show_summary,
'show_author' => $this->options->show_author,
'show_date' => $this->options->show_date,
'show_time' => $this->options->show_time,
'link_target' => $this->options->link_target,
'nofollow' => $this->options->nofollow,
'enable_cache' => $this->options->enable_cache,
'cache_duration' => $this->options->cache_duration,
'is_home' => $this->options->is_home_default,
'is_front' => $this->options->is_front_default,
'is_archive' => $this->options->is_archive_default,
'is_search' => $this->options->is_search_default,
'is_category' => $this->options->is_category_default,
'is_tag' => $this->options->is_tag_default,
'is_single' => $this->options->is_single_default,
'is_date' => $this->options->is_date_default,
'title_length' => $this->options->title_length,
'excerpt' => $this->options->excerpt,
'items' => $this->options->items
);
return wp_parse_args($instance, $new_defaults);
}
/**
* Widget form.
*
* @param array $instance
*/
function form($instance) {
if (count($instance) < 1) {
$instance = $this->defaults($instance);
}
include( $this->pluginPath . '/includes/widget-form.php');
}
/**
* Method for the [better-rss] short code.
*
* @param array $atts
* @return string
*/
function shortcode_handler($atts) {
global $post;
$atts = (object) wp_parse_args($atts, $this->defaults_args());
if (!$atts->feed) {
return false;
}
if ($atts->use_title) {
$add_url[] = str_replace(' ', '+', $post->post_title);
}
if ($atts->use_tags) {
foreach (get_the_tags() as $tag) {
$add_url[] = str_replace(' ', '+', $tag->name);
}
}
if (isset($add_url) and is_array($add_url)) {
$atts->feed = $atts->feed . implode('+', $add_url);
}
ob_start();
$this->rss_output($atts->feed, $atts);
$output.= ob_get_contents();
ob_end_clean();
return $output;
}
function defaults_args() {
return array(
// Query Attributes
'feed' => NULL,
'use_title' => false,
'use_tags' => false,
'use_category' => false,
'items' => 10,
'hide_title' => false,
'hide_link' => false,
'show_author' => $this->options->show_author,
'show_date' => $this->options->show_author,
'show_time' => $this->options->show_time,
'show_summary' => $this->options->show_summary,
'link_target' => $this->options->link_target,
'nofollow' => $this->options->nofollow,
'cache_duration' => $this->options->cache_duration,
'excerpt' => $this->options->excerpt,
'html_parent' => 'ul',
'html_item' => 'li'
);
}
/**
* Get an object with all of the post types.
*
* @return object
*/
function get_post_types($args = array()) {
if (function_exists('get_post_types')) {
$post_types = get_post_types(array('public' => true));
unset($post_types['attachment']);
} else {
$post_types = array('post', 'page');
}
$defaults = array(
'output' => 'object',
'name' => 'post_type',
'id' => 'post_type'
);
$args = (object) wp_parse_args($args, $defaults);
switch ($args->output) {
case 'dropdown':
$results = '<select name="' . $args->name . '" id="' . $args->id . '">';
foreach ($post_types as $post_type) {
$results.= '<option value="' . $post_type . '">' . $post_type . "</option>\n";
}
$results.= '</select>';
break;
default:
$results = (object) $post_types;
}
return $results;
}
/**
* Display the list of contributors.
* @return boolean
*/
function contributor_list() {
if (function_exists('simplexml_load_file')) {
$this->showFields = array('NAME', 'LOCATION', 'COUNTRY');
print '<ul>';
$items = simplexml_load_file('http://cdn.grandslambert.com/xml/better-rss-widget.xml');
foreach ($items as $item) {
print '<li>';
if (empty($item->url)) {
print $item->name;
} else {
print '<a href="' . $item->url . '" target="_blank">' . $item->name . '</a>';
}
if (!empty($item->location)) {
print ' from ' . $item->location;
}
if (!empty($item->country)) {
print ', ' . $item->country;
}
print ' contributed ' . $item->item . ' on ' . date('F jS, Y', strtotime($item->date)) . '</li>';
}
print '</ul>';
} else {
_e('PHP 5 Required to see a list of contributors.', 'pretty-sidebar-categories');
}
}
/**
* Displayes any data sent in textareas.
*
* @param <type> $input
*/
function debug($input) {
$contents = func_get_args();
foreach ($contents as $content) {
print '<textarea style="width:49%; height:250px; float: left;">';
print_r($content);
print '</textarea>';
}
echo '<div style="clear: both"></div>';
}
}
/**
* Add the widget code to the initialization action
*/
add_action('widgets_init', create_function('', 'return register_widget("better_twitter_widget");'));
register_activation_hook(__FILE__, 'better_twitter_activate');
function better_twitter_activate() {
/* Compile old options into new options Array */
$new_options = '';
$options = array('link_target', 'items', 'show_summary', 'show_author', 'show_date', 'show_time', 'enable_cache', 'cache_duration', 'is_home_default', 'is_front_default', 'is_archive_default', 'is_search_default', 'is_category_default', 'is_tag_default', 'is_single_default', 'is_date_default');
foreach ($options as $option) {
if ($old_option = get_option('better_twitter_' . $option)) {
$new_options[$option] = $old_option;
delete_option('better_twitter_' . $option);
}
}
if (is_array($new_options) and ! add_option('better-twitter-widget-options', $new_options)) {
update_option('better-twitter-widget-options', $new_options);
}
}
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