<?php
/**
* @brief Twitter share link
* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
* @copyright (c) Invision Power Services, Inc.
* @license https://www.invisioncommunity.com/legal/standards/
* @package Invision Community
* @since 11 Sept 2013
* @see <a href='https://dev.twitter.com/docs/tweet-button'>Tweet button documentation</a>
*/
namespace IPS\Content\ShareServices;
/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
exit;
}
/**
* Twitter share link
*/
class _Twitter
{
/**
* @brief URL to the content item
*/
protected $url = NULL;
/**
* @brief Title of the content item
*/
protected $title = NULL;
/**
* Constructor
*
* @param \IPS\Http\Url $url URL to the content [optional - if omitted, some services will figure out on their own]
* @param string $title Default text for the content, usually the title [optional - if omitted, some services will figure out on their own]
* @return void
*/
public function __construct( \IPS\Http\Url $url=NULL, $title=NULL )
{
$this->url = $url;
$this->title = $title;
}
/**
* Determine whether the logged in user has the ability to autoshare
*
* @return boolean
*/
public static function canAutoshare()
{
if ( $method = \IPS\Login\Handler::findMethod( 'IPS\Login\Handler\OAuth1\Twitter' ) and $method->canProcess( \IPS\Member::loggedIn() ) )
{
return TRUE;
}
return FALSE;
}
/**
* Publish text or a URL to this service
*
* @param string $content Text to publish
* @param string $url [URL to publish]
* @return @void
*/
public static function publish( $content, $url=null )
{
if ( static::canAutoshare() and $method = \IPS\Login\Handler::findMethod( 'IPS\Login\Handler\OAuth1\Twitter' ) )
{
try
{
if ( !$method->postToTwitter( \IPS\Member::loggedIn(), $content, $url ) )
{
throw new \Exception;
}
}
catch( \Exception $e )
{
\IPS\Log::log( \IPS\Member::loggedIn()->member_id . ': '. $e->getMessage(), 'twitter' );
throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->addToStack('twitter_publish_exception') );
}
}
else
{
throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->addToStack('twitter_publish_no_user') );
}
}
/**
* Add any additional form elements to the configuration form. These must be setting keys that the service configuration form can save as a setting.
*
* @param \IPS\Helpers\Form $form Configuration form for this service
* @param \IPS\core\ShareLinks\Service $service The service
* @return void
*/
public static function modifyForm( \IPS\Helpers\Form &$form, $service )
{
$form->add( new \IPS\Helpers\Form\Text( 'twitter_hashtag', \IPS\Settings::i()->twitter_hashtag, FALSE ) );
if ( \IPS\Login\Handler::findMethod( 'IPS\Login\Handler\OAuth2\Twitter' ) )
{
$form->add( new \IPS\Helpers\Form\YesNo( 'share_autoshare_Twitter', $service->autoshare, false ) );
}
else
{
$form->add( new \IPS\Helpers\Form\YesNo( 'share_autoshare_Twitter', FALSE, false, array( 'disabled' => TRUE ) ) );
\IPS\Member::loggedIn()->language()->words['share_autoshare_Twitter_desc'] = \IPS\Member::loggedIn()->language()->addToStack('share_autoshare_Twitter_disabled');
}
}
/**
* Return the HTML code to show the share link
*
* @return string
*/
public function __toString()
{
try
{
$url = preg_replace_callback( "{[^0-9a-z_.!~*'();,/?:@&=+$#-]}i",
function ( $m )
{
return sprintf( '%%%02X', ord( $m[0] ) );
},
$this->url) ;
$title = $this->title ?: NULL;
if ( \IPS\Settings::i()->twitter_hashtag !== '')
{
$title .= ' ' . \IPS\Settings::i()->twitter_hashtag;
}
return \IPS\Theme::i()->getTemplate( 'sharelinks', 'core' )->twitter( urlencode( $url ), rawurlencode( $title ) );
}
catch ( \Exception $e )
{
\IPS\IPS::exceptionHandler( $e );
}
catch ( \Throwable $e )
{
\IPS\IPS::exceptionHandler( $e );
}
}
}