/lib/wiki-plugins/wikiplugin_twitter.php

<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

function wikiplugin_twitter_info()
{
    return [
        'name' => tra('Twitter'),
        'documentation' => 'PluginTwitter',
        'description' => tra('Display the activity for a twitter account'),
        'prefs' => ['wikiplugin_twitter'],
        'body' => '',
        'iconname' => 'twitter',
        'introduced' => 7,
        'params' => [
            'tweet' => [
                'required' => true,
                'name' => tra('Twitter Path'),
                'description' => tr(
                    'Depends on the type of timeline (Users, Collections, Favorites or Lists). For a
                     User, it is the Account Name (like %0twitterdev%1), for Favorites, something like
                     %0twitterdev/favorites%1. For lists, something like %0twitterdev/lists/listname%1, etc. ',
                    '<code>',
                    '</code>'
                ),
                'since' => '7.0',
                'filter' => 'text',
                'default' => ''
            ],
            'widgetId' => [
                'required' => true,
                'name' => tra('Widget Id'),
                'description' => tra('Numeric identifier of the widget'),
                'since' => '13.1',
                'filter' => 'digits',
                'default' => ''
            ],
            'theme' => [
                'required' => false,
                'name' => tra('Theme'),
                'description' => tr('Embedded timelines are available in light and dark themes for customization.
                    The light theme is for pages that use a light colored background, while the dark theme is for pages
                    that use a dark colored background. Default is %0light%1.', '<code>', '</code>'),
                'since' => '13.1',
                'filter' => 'alpha',
                'options' => [
                    ['text' => '', 'value' => ''],
                    ['text' => tra('light'), 'value' => 'light'],
                    ['text' => tra('dark'), 'value' => 'dark'],
                ],
                'default' => 'light'
            ],
            'tweetcolor' => [
                'required' => false,
                'name' => tra('Link Color'),
                'description' => tra('Text color for individual tweets. Default is theme default.'),
                'since' => '7.0',
                'accepted' => tra('Valid HTML color codes (with beginning #) or names.'),
                'filter' => 'text'
            ],
            'tweetbg' => [
                'required' => false,
                'name' => tra('Border Color'),
                'description' => tra('Change the border color used by the widget. Default is theme default.'),
                'since' => '7.0',
                'accepted' => tra('Valid HTML color codes (with beginning #) or names.'),
                'filter' => 'text'
            ],
            'height' => [
                'required' => false,
                'name' => tra('Height'),
                'description' => tr('Height of widget in pixels. Default is %0.', '<code>300</code>'),
                'since' => '7.0',
                'filter' => 'digits',
                'default' => 300
            ],
            'width' => [
                'required' => false,
                'name' => tra('Width'),
                'description' => tr(
                    'Width of widget in pixels or \'auto\' to fit to width of page. Default is %0.',
                    '<code>auto</code>'
                ),
                'accepted' => tra('Number of pixels or the word \'auto\'.'),
                'since' => '7.0',
                'filter' => 'text',
                'default' => 'auto'
            ],
            'noheader' => [
                'required' => false,
                'advanced' => true,
                'name' => tra('No Header'),
                'description' => tra('Default is with Header'),
                'since' => '13.1',
                'filter' => 'text',
                'options' => [
                    ['text' => tra('Header'), 'value' => ''],
                    ['text' => tra('No Header'), 'value' => 'y'],
                ],
            ],
            'nofooter' => [
                'required' => false,
                'advanced' => true,
                'name' => tra('No Footer'),
                'description' => tra('Default is with Footer'),
                'since' => '13.1',
                'filter' => 'text',
                'options' => [
                    ['text' => tra('Footer'), 'value' => ''],
                    ['text' => tra('No Footer'), 'value' => 'y'],
                ],
            ],
            'noborders' => [
                'required' => false,
                'advanced' => true,
                'name' => tra('Layout Option: No Borders'),
                'description' => tra('Default is with Borders'),
                'since' => '13.1',
                'filter' => 'text',
                'options' => [
                    ['text' => tra('Borders'), 'value' => ''],
                    ['text' => tra('No Borders'), 'value' => 'y'],
                ],
            ],
            'noscrollbar' => [
                'required' => false,
                'advanced' => true,
                'name' => tra('No Scrollbar'),
                'description' => tra('Default is with Scrollbar'),
                'since' => '13.1',
                'filter' => 'text',
                'options' => [
                    ['text' => tra('Scrollbar'), 'value' => ''],
                    ['text' => tra('No Scrollbar'), 'value' => 'y'],
                ],
            ],
            'shellbg' => [
                'required' => false,
                'advanced' => true,
                'name' => tra('Transparent Background'),
                'description' => tra('Transparent Shell Background. Default is theme default'),
                'since' => '7.0',
                'filter' => 'text',
                'options' => [
                    ['text' => tra('Theme default'), 'value' => ''],
                    ['text' => tra('Transparent'), 'value' => 'transparent'],
                ],
            ],
        ],
    ];
}

function wikiplugin_twitter($data, $params)
{
    $default = ['shellbg' => '', 'shellcolor' => '', 'tweetbg' => '', 'tweetcolor' => '', 'width' => 'auto', 'height' => 300];
    $params = array_merge($default, $params);
    extract($params, EXTR_SKIP);

    // Variables sanitizing
    $tweetlimit = (int)$tweetlimit;
    $tweetbg = preg_replace('/[^#0-9a-zA-Z]/', '', $tweetbg);
    $tweetcolor = preg_replace('/[^#0-9a-zA-Z]/', '', $tweetcolor);
    $tweet = preg_replace('/[^#0-9a-zA-Z%\/=]/', '', $tweet);
    $widgetId = preg_replace('/[^0-9]/', '', $widgetId);
    if ($theme != 'dark') {
        $theme = 'light';
    }
    $datachrome = [];
    if ($noheader == 'y') {
        $datachrome[] = 'noheader';
    }
    if ($nofooter == 'y') {
        $datachrome[] = 'nofooter';
    }
    if ($noborders == 'y') {
        $datachrome[] = 'noborders';
    }
    if ($noscrollbar == 'y') {
        $datachrome[] = 'noscrollbar';
    }
    if ($shellbg == 'transparent') {
        $datachrome[] = 'transparent' ;
    }
    if (count($datachrome) > 0) {
        $datachromehtml = "data-chrome=' " . implode(' ', $datachrome) . "' ";
    }
    if ($width != 'auto') {
        $width = preg_replace('/[^0-9]/', '', $width);
    }
    $height = (int)$height;

    // Inspiration: http://stackoverflow.com/questions/14303710/how-to-customize-twitter-widget-style
    // and https://dev.twitter.com/web/embedded-timelines
    // Note: the $widgetId is more important than the $tweet in defining what is displayed
    $html = "<a class=\"twitter-timeline\"  href=\"https://twitter.com/$tweet\" data-widget-id=\"$widgetId\"
$datachromehtml 
" . (empty($tweetlimit) ? '' : " data-tweet-limit='$tweetlimit'\n") .
    (empty($tweetcolor) ? "" : " data-link-color='$tweetcolor'\n") .
    (empty($tweetbg) ? "" : " data-border-color='$tweetbg'\n") .
    "data-theme='$theme' 
height='$height'
width='$width'
" .
    "data-show-replies='false'
data-aria-polite='polite'>Tweets from @$tweet</a>
<script>
!function(d,s,id){
    var js,fjs=d.getElementsByTagName(s)[0];

    if(!d.getElementById(id)){
        js=d.createElement(s);
        js.id=id;
        js.src=\"http://platform.twitter.com/widgets.js\";
        fjs.parentNode.insertBefore(js,fjs);
    }

}(document,'script','twitter-wjs');
</script>";

    //debug return '~np~'.nl2br(htmlspecialchars($html)).'~/np~';
    //debug return '~np~'.$html.nl2br(htmlspecialchars($html)).'~/np~';

    return '~np~' . $html . '~/np~';
}