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<?php
/**
 * @package     Joomla.Plugin
 * @subpackage  User.profile
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\CMS\Date\Date;
use Joomla\CMS\Factory;
use Joomla\CMS\Form\Form;
use Joomla\CMS\Form\FormHelper;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\String\PunycodeHelper;
use Joomla\Utilities\ArrayHelper;

/**
 * An example custom profile plugin.
 *
 * @since  1.6
 */
class PlgUserProfile extends JPlugin
{
	/**
	 * Date of birth.
	 *
	 * @var    string
	 * @since  3.1
	 */
	private $date = '';

/**
	 * Load the language file on instantiation.
	 *
	 * @var    boolean
	 * @since  3.1
	 */
	protected $autoloadLanguage = true;

/**
	 * Constructor
	 *
	 * @param   object  &$subject  The object to observe
	 * @param   array   $config    An array that holds the plugin configuration
	 *
	 * @since   1.5
	 */
	public function __construct(& $subject, $config)
	{
		parent::__construct($subject, $config);
		FormHelper::addFieldPath(__DIR__ . '/field');
	}

/**
	 * Runs on content preparation
	 *
	 * @param   string  $context  The context for the data
	 * @param   object  $data     An object containing the data for the form.
	 *
	 * @return  boolean
	 *
	 * @since   1.6
	 */
	public function onContentPrepareData($context, $data)
	{
		// Check we are manipulating a valid form.
		if (!in_array($context, array('com_users.profile', 'com_users.user', 'com_users.registration', 'com_admin.profile')))
		{
			return true;
		}

if (is_object($data))
		{
			$userId = isset($data->id) ? $data->id : 0;

if (!isset($data->profile) && $userId > 0)
			{
				// Load the profile data from the database.
				$db = Factory::getDbo();
				$db->setQuery(
					'SELECT profile_key, profile_value FROM #__user_profiles'
						. ' WHERE user_id = ' . (int) $userId . " AND profile_key LIKE 'profile.%'"
						. ' ORDER BY ordering'
				);

try
				{
					$results = $db->loadRowList();
				}
				catch (RuntimeException $e)
				{
					$this->_subject->setError($e->getMessage());

return false;
				}

// Merge the profile data.
				$data->profile = array();

foreach ($results as $v)
				{
					$k = str_replace('profile.', '', $v[0]);
					$data->profile[$k] = json_decode($v[1], true);

if ($data->profile[$k] === null)
					{
						$data->profile[$k] = $v[1];
					}
				}
			}

if (!HTMLHelper::isRegistered('users.url'))
			{
				HTMLHelper::register('users.url', array(__CLASS__, 'url'));
			}

if (!HTMLHelper::isRegistered('users.calendar'))
			{
				HTMLHelper::register('users.calendar', array(__CLASS__, 'calendar'));
			}

if (!HTMLHelper::isRegistered('users.tos'))
			{
				HTMLHelper::register('users.tos', array(__CLASS__, 'tos'));
			}

if (!HTMLHelper::isRegistered('users.dob'))
			{
				HTMLHelper::register('users.dob', array(__CLASS__, 'dob'));
			}
		}

return true;
	}

/**
	 * Returns an anchor tag generated from a given value
	 *
	 * @param   string  $value  URL to use
	 *
	 * @return  mixed|string
	 */
	public static function url($value)
	{
		if (empty($value))
		{
			return HTMLHelper::_('users.value', $value);
		}
		else
		{
			// Convert website URL to utf8 for display
			$value = PunycodeHelper::urlToUTF8(htmlspecialchars($value));

if (strpos($value, 'http') === 0)
			{
				return '<a href="' . $value . '">' . $value . '</a>';
			}
			else
			{
				return '<a href="http://' . $value . '">' . $value . '</a>';
			}
		}
	}

/**
	 * Returns html markup showing a date picker
	 *
	 * @param   string  $value  valid date string
	 *
	 * @return  mixed
	 */
	public static function calendar($value)
	{
		if (empty($value))
		{
			return HTMLHelper::_('users.value', $value);
		}
		else
		{
			return HTMLHelper::_('date', $value, null, null);
		}
	}

/**
	 * Returns the date of birth formatted and calculated using server timezone.
	 *
	 * @param   string  $value  valid date string
	 *
	 * @return  mixed
	 */
	public static function dob($value)
	{
		if (!$value)
		{
			return '';
		}

return HTMLHelper::_('date', $value, Text::_('DATE_FORMAT_LC1'), false);
	}

/**
	 * Return the translated strings yes or no depending on the value
	 *
	 * @param   boolean  $value  input value
	 *
	 * @return  string
	 */
	public static function tos($value)
	{
		if ($value)
		{
			return Text::_('JYES');
		}
		else
		{
			return Text::_('JNO');
		}
	}

/**
	 * Adds additional fields to the user editing form
	 *
	 * @param   Form   $form  The form to be altered.
	 * @param   mixed  $data  The associated data for the form.
	 *
	 * @return  boolean
	 *
	 * @since   1.6
	 */
	public function onContentPrepareForm(Form $form, $data)
	{
		// Check we are manipulating a valid form.
		$name = $form->getName();

if (!in_array($name, array('com_admin.profile', 'com_users.user', 'com_users.profile', 'com_users.registration')))
		{
			return true;
		}

// Add the registration fields to the form.
		Form::addFormPath(__DIR__ . '/profiles');
		$form->loadFile('profile');

$fields = array(
			'address1',
			'address2',
			'city',
			'region',
			'country',
			'postal_code',
			'phone',
			'website',
			'favoritebook',
			'aboutme',
			'dob',
			'tos',
		);

// Change fields description when displayed in frontend or backend profile editing
		$app = Factory::getApplication();

if ($app->isClient('site') || $name === 'com_users.user' || $name === 'com_admin.profile')
		{
			$form->setFieldAttribute('address1', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('address2', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('city', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('region', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('country', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('postal_code', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('phone', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('website', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('favoritebook', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('aboutme', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('dob', 'description', 'PLG_USER_PROFILE_FILL_FIELD_DESC_SITE', 'profile');
			$form->setFieldAttribute('tos', 'description', 'PLG_USER_PROFILE_FIELD_TOS_DESC_SITE', 'profile');
		}

$tosArticle = $this->params->get('register_tos_article');
		$tosEnabled = $this->params->get('register-require_tos', 0);

// We need to be in the registration form and field needs to be enabled
		if ($name !== 'com_users.registration' || !$tosEnabled)
		{
			// We only want the TOS in the registration form
			$form->removeField('tos', 'profile');
		}
		else
		{
			// Push the TOS article ID into the TOS field.
			$form->setFieldAttribute('tos', 'article', $tosArticle, 'profile');
		}

foreach ($fields as $field)
		{
			// Case using the users manager in admin
			if ($name === 'com_users.user')
			{
				// Toggle whether the field is required.
				if ($this->params->get('profile-require_' . $field, 1) > 0)
				{
					$form->setFieldAttribute($field, 'required', ($this->params->get('profile-require_' . $field) == 2) ? 'required' : '', 'profile');
				}
				// Remove the field if it is disabled in registration and profile
				elseif ($this->params->get('register-require_' . $field, 1) == 0
					&& $this->params->get('profile-require_' . $field, 1) == 0)
				{
					$form->removeField($field, 'profile');
				}
			}
			// Case registration
			elseif ($name === 'com_users.registration')
			{
				// Toggle whether the field is required.
				if ($this->params->get('register-require_' . $field, 1) > 0)
				{
					$form->setFieldAttribute($field, 'required', ($this->params->get('register-require_' . $field) == 2) ? 'required' : '', 'profile');
				}
				else
				{
					$form->removeField($field, 'profile');
				}
			}
			// Case profile in site or admin
			elseif ($name === 'com_users.profile' || $name === 'com_admin.profile')
			{
				// Toggle whether the field is required.
				if ($this->params->get('profile-require_' . $field, 1) > 0)
				{
					$form->setFieldAttribute($field, 'required', ($this->params->get('profile-require_' . $field) == 2) ? 'required' : '', 'profile');
				}
				else
				{
					$form->removeField($field, 'profile');
				}
			}
		}

// Drop the profile form entirely if there aren't any fields to display.
		$remainingfields = $form->getGroup('profile');

if (!count($remainingfields))
		{
			$form->removeGroup('profile');
		}

return true;
	}

/**
	 * Method is called before user data is stored in the database
	 *
	 * @param   array    $user   Holds the old user data.
	 * @param   boolean  $isnew  True if a new user is stored.
	 * @param   array    $data   Holds the new user data.
	 *
	 * @return  boolean
	 *
	 * @since   3.1
	 * @throws  InvalidArgumentException on invalid date.
	 */
	public function onUserBeforeSave($user, $isnew, $data)
	{
		// Check that the date is valid.
		if (!empty($data['profile']['dob']))
		{
			try
			{
				$date = new Date($data['profile']['dob']);
				$this->date = $date->format('Y-m-d H:i:s');
			}
			catch (Exception $e)
			{
				// Throw an exception if date is not valid.
				throw new InvalidArgumentException(Text::_('PLG_USER_PROFILE_ERROR_INVALID_DOB'));
			}

if (Date::getInstance('now') < $date)
			{
				// Throw an exception if dob is greater than now.
				throw new InvalidArgumentException(Text::_('PLG_USER_PROFILE_ERROR_INVALID_DOB_FUTURE_DATE'));
			}
		}

// Check that the tos is checked if required ie only in registration from frontend.
		$task       = Factory::getApplication()->input->getCmd('task');
		$option     = Factory::getApplication()->input->getCmd('option');
		$tosArticle = $this->params->get('register_tos_article');
		$tosEnabled = ($this->params->get('register-require_tos', 0) == 2);

// Check that the tos is checked.
		if ($task === 'register' && $tosEnabled && $tosArticle && $option === 'com_users' && !$data['profile']['tos'])
		{
			throw new InvalidArgumentException(Text::_('PLG_USER_PROFILE_FIELD_TOS_DESC_SITE'));
		}

return true;
	}

/**
	 * Saves user profile data
	 *
	 * @param   array    $data    entered user data
	 * @param   boolean  $isNew   true if this is a new user
	 * @param   boolean  $result  true if saving the user worked
	 * @param   string   $error   error message
	 *
	 * @return  boolean
	 */
	public function onUserAfterSave($data, $isNew, $result, $error)
	{
		$userId = ArrayHelper::getValue($data, 'id', 0, 'int');

if ($userId && $result && isset($data['profile']) && count($data['profile']))
		{
			try
			{
				$db = Factory::getDbo();

// Sanitize the date
				if (!empty($data['profile']['dob']))
				{
					$data['profile']['dob'] = $this->date;
				}

$keys = array_keys($data['profile']);

foreach ($keys as &$key)
				{
					$key = 'profile.' . $key;
					$key = $db->quote($key);
				}

$query = $db->getQuery(true)
					->delete($db->quoteName('#__user_profiles'))
					->where($db->quoteName('user_id') . ' = ' . (int) $userId)
					->where($db->quoteName('profile_key') . ' IN (' . implode(',', $keys) . ')');
				$db->setQuery($query);
				$db->execute();

$query = $db->getQuery(true)
					->select($db->quoteName('ordering'))
					->from($db->quoteName('#__user_profiles'))
					->where($db->quoteName('user_id') . ' = ' . (int) $userId);
				$db->setQuery($query);
				$usedOrdering = $db->loadColumn();

$tuples = array();
				$order = 1;

foreach ($data['profile'] as $k => $v)
				{
					while (in_array($order, $usedOrdering))
					{
						$order++;
					}

$tuples[] = '(' . $userId . ', ' . $db->quote('profile.' . $k) . ', ' . $db->quote(json_encode($v)) . ', ' . ($order++) . ')';
				}

$db->setQuery('INSERT INTO #__user_profiles VALUES ' . implode(', ', $tuples));
				$db->execute();
			}
			catch (RuntimeException $e)
			{
				$this->_subject->setError($e->getMessage());

return false;
			}
		}

return true;
	}

/**
	 * Remove all user profile information for the given user ID
	 *
	 * Method is called after user data is deleted from the database
	 *
	 * @param   array    $user     Holds the user data
	 * @param   boolean  $success  True if user was successfully stored in the database
	 * @param   string   $msg      Message
	 *
	 * @return  boolean
	 */
	public function onUserAfterDelete($user, $success, $msg)
	{
		if (!$success)
		{
			return false;
		}

$userId = ArrayHelper::getValue($user, 'id', 0, 'int');

if ($userId)
		{
			try
			{
				$db = Factory::getDbo();
				$db->setQuery(
					'DELETE FROM #__user_profiles WHERE user_id = ' . $userId
						. " AND profile_key LIKE 'profile.%'"
				);

$db->execute();
			}
			catch (Exception $e)
			{
				$this->_subject->setError($e->getMessage());

return false;
			}
		}

return true;
	}
}

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